CN109461573A - Current transformer based on Radio Transmission Technology - Google Patents

Abstract

Translated fromChinese

一种基于无线传输技术的电流互感器，包括主体部分及与主体部分活动连接的上盖部分，主体部分包括壳体、位于壳体内的直流电源、位于直流电源上方的电路板、位于电路板上方的绕组支架及设置于绕组支架上的第一绕组线圈，壳体的顶端沿长度方向设置有第一弧形槽，上盖部分包括外壳及第二绕组线圈，上盖部分对应第一弧形槽设置有凹陷的第二弧形槽，电路板上设置有功能集成电路、充电电路及无线收发模块，直流电源与功能集成电路及充电电路均连接，无线收发模块与功能集成电路连接。如此集成了各种功能电路、具有无线传输功能且具有较好的防尘防水功能。

A current transformer based on wireless transmission technology comprises a main body part and an upper cover part movably connected with the main body part, the main body part comprises a casing, a DC power supply located in the casing, a circuit board located above the DC power supply, and a circuit board located above the circuit board. The top of the casing is provided with a first arc-shaped slot along the length direction, the upper cover part includes the outer casing and the second winding coil, and the upper cover part corresponds to the first arc-shaped slot A concave second arc groove is provided, a functional integrated circuit, a charging circuit and a wireless transceiver module are arranged on the circuit board, the DC power supply is connected with the functional integrated circuit and the charging circuit, and the wireless transceiver module is connected with the functional integrated circuit. In this way, various functional circuits are integrated, the wireless transmission function is provided, and the dustproof and waterproof functions are better.

Description

Current transformer based on Radio Transmission Technology

Technical field

The present invention relates to technical field of electric power detection, especially a kind of current transformer based on Radio Transmission Technology.

Background technique

The induced current of current current transformer arrangement secondary winding, need using wired mode pick out ammeter intoRow measurement, then the current value of measurement is reported to management server by concentrator, in-site installation configuration is complicated, outdoorsUnder the conditions of design dustproof and waterproof mechanism when, it is also difficult to guarantee the dustproof and waterproof of cable Yu mutual inductor junction.

Summary of the invention

In view of this, the present invention provides one kind to integrate various functional circuits, with wireless transmission function and with preferableDustproof and waterproof function the current transformer based on Radio Transmission Technology, to solve the above problems.

A kind of current transformer based on Radio Transmission Technology, including main part (10) and with main part (10) activityThe upper cover part (20) of connection, main part (10) include shell, are located at the intracorporal DC power supply of shell (30), are located at DC power supply(30) it circuit board (40) above, the winding support (50) being located above circuit board (40) and is set on winding support (50)First winding coil (60), the top of shell are provided with the first arc groove (124) along its length, and upper cover part (20) includes outerShell (201) and the second winding coil (70) being set in shell (201), end of the upper cover part (20) towards main part (10)Face corresponding first arc groove (124) is provided with the second arc groove (23) of recess, and functional integrated electricity is arranged on circuit board (40)Road (41), charging circuit (42) and radio receiving transmitting module (43), DC power supply (30) and functional integrated circuit (41) and charging electricityRoad (42) is all connected with, and radio receiving transmitting module (43) is connect with functional integrated circuit (41), and DC power supply (30) is the integrated electricity of functionRoad (41) power supply, charging circuit (42) is for charging to DC power supply (30).

Further, the DC power supply (30) is lithium battery.

Further, the shell includes the bottom shell (11) and top shell (12) being oppositely arranged, top shell(12) there are two opposite link block (121), two link blocks for the position setting of first side and separate bottom shell (11)(121) it is connected between shaft (122), the position protrusion of the second side of top shell (12) and separate bottom shell (11) is setIt is equipped with raised line (123), the bottom of the first side of shell (201) is set there are two (21) are linked up with, and links up with (21) and top shell(12) shaft (122) rotation connection, the bottom of the second side of shell (201) are connected with U-shaped shackle member (22), U-shaped clampingOpening (221) is formed between part (22) and shell (201), raised line (123) is movably located in opening (221).

Further, the shape of first winding coil (60) and the second winding coil (70) is U-shaped or C wordShape.

Further, coil accommodation groove (24) are equipped in the shell (201), are set on the inner sidewall of coil accommodation groove (24)There are several ribs outstanding (25), the second winding coil (70) is located in coil accommodation groove (24) and matches with rib (25) interferenceIt closes.

Further, first winding coil (60) has the first induction coil (61) and the second induction coil (62),The both ends of first induction coil (61) are connect with functional integrated circuit (41), the both ends of the second induction coil (62) with chargingCircuit (42) connection.

Further, the functional integrated circuit (41) includes four rectifier diode D1-D4, inductance CZ1-CZ2, capacitorC1-C4, resistance R1-R3 and main control chip U1, the first end of the first induction coil (61) are connect with the anode of rectifier diode D1,And it is connect with the cathode of rectifier diode D3；The second end of first induction coil (61) is connect with the cathode of rectifier diode D4,And connect with the anode of rectifier diode D2, the cathode of rectifier diode D1 is connect with the cathode of rectifier diode D2, rectification twoThe anode of pole pipe D3 is connect with the anode of rectifier diode D4, and the cathode of rectifier diode D1 passes through inductance CZ1's and capacitor C1The anode of first end connection, rectifier diode D4 is connect by inductance CZ2 with the second end of capacitor C1, and the first end of capacitor C1 is logicalResistance R1 is crossed to connect with the first input end of main control chip U1, the second end of capacitor C1 pass through resistance R3 and main control chip U1 theThe connection of two input terminals, resistance R2 are connected between the first end and second end of capacitor C1, and capacitor C4 is connected to main control chip U1'sBetween first input end and the second input terminal, the first input end of main control chip U1 is grounded by capacitor C2, main control chip U1'sSecond input terminal is grounded by capacitor C3.

Further, the charging circuit (42) includes four rectifier diode D5-D8, thermistor RT, two pole of pressure stabilizingPipe D9, capacitor C5-C10, diode D10-D12, resistance R4-R6, inductance L1 and voltage stabilizing chip U2, the second induction coil (62)First end connect with the anode of rectifier diode D5 and connect with the cathode of rectifier diode D7；The of second induction coil (62)Two ends connect with the cathode of rectifier diode D8 and connect with the anode of rectifier diode D6；The cathode of rectifier diode D5 with it is wholeThe cathode connection of diode D6 is flowed, the anode of rectifier diode D8 is connect with the anode of rectifier diode D7；Rectifier diode D5Cathode connect with the first foot of voltage stabilizing chip U2 by thermistor RT, the anode of rectifier diode D8 is with voltage stabilizing chip U2'sThird foot and the connection of the 5th foot；Zener diode D9, capacitor C5, capacitor C6, capacitor C7 are arranged in parallel in voltage stabilizing chip U2Between one foot and third foot；The anode of diode D10 is connect with the crus secunda of voltage stabilizing chip U2, and the of cathode and voltage stabilizing chip U2The connection of one foot；The anode of diode D11 is connect with the third foot of voltage stabilizing chip U2, and the crus secunda of cathode and voltage stabilizing chip U2 connectIt connects；The crus secunda of voltage stabilizing chip U2 is connect by inductance L1 with the anode of diode D12, the cathode and direct current of diode D12The anode connection in source (30)；The anode of diode D12 is connected by the cathode of resistance R4, R6 and DC power supply (30), pressure stabilizing coreNode connection between the 4th foot and resistance R4 and resistance R6 of piece U2, the anode of diode D12 pass through resistance R5 and pressure stabilizing coreThe 4th foot of piece U2 connects；Capacitor C8-C10 is arranged in parallel between the cathode of the anode and DC power supply (30) of diode D12.

Compared with prior art, the current transformer of the invention based on Radio Transmission Technology include main part (10) andThe upper cover part (20) being flexibly connected with main part (10), main part (10) include shell, are located at the intracorporal direct current of shellSource (30), be located at DC power supply (30) above circuit board (40), be located at circuit board (40) above winding support (50) and setThe first winding coil (60) being placed on winding support (50), the top of shell is provided with the first arc groove along its length(124), upper cover part (20) includes shell (201) and the second winding coil (70) being set in shell (201), upper cover part(20) the second arc groove (23) of recess, circuit are provided with towards the end face of main part (10) corresponding first arc groove (124)Be provided with functional integrated circuit (41), charging circuit (42) and radio receiving transmitting module (43) on plate (40), DC power supply (30) withFunctional integrated circuit (41) and charging circuit (42) are all connected with, and radio receiving transmitting module (43) is connect with functional integrated circuit (41),DC power supply (30) is functional integrated circuit (41) power supply, and charging circuit (42) is for charging to DC power supply (30).Such asThis is integrated with various functional circuits, with wireless transmission function and with preferable dustproof and waterproof function.

Detailed description of the invention

The embodiment of the present invention is described below in conjunction with attached drawing, in which:

Fig. 1 is the stereoscopic schematic diagram of the current transformer provided by the invention based on Radio Transmission Technology.

Fig. 2 is the schematic diagram at another visual angle of the current transformer provided by the invention based on Radio Transmission Technology.

Fig. 3 is the fractionation schematic diagram of the current transformer provided by the invention based on Radio Transmission Technology.

Fig. 4 is the signal at another visual angle after the current transformer provided by the invention based on Radio Transmission Technology is splitFigure.

Fig. 5 is that the main part in Fig. 4 removes the schematic internal view after shell.

Fig. 6 is the stereoscopic schematic diagram of the upper cover part in Fig. 4.

Fig. 7 is the stereoscopic schematic diagram of the shell of the upper cover part in Fig. 6.

Fig. 8 is the block diagram of the current transformer provided by the invention based on Radio Transmission Technology.

Fig. 9 is the circuit diagram of the functional integrated circuit in Fig. 8.

Figure 10 is the circuit diagram of the charging circuit in Fig. 8.

Specific embodiment

Specific embodiments of the present invention are further elaborated below based on attached drawing.It should be understood that hereinThe explanation of the embodiment of the present invention is not intended to limit the scope of protection of the present invention.

Fig. 1 to Fig. 6 is please referred to, the current transformer provided by the invention based on Radio Transmission Technology includes main part 10And the upper cover part 20 being flexibly connected with main part 10.

Main part 10 includes shell, positioned at the intracorporal DC power supply 30 of shell, the circuit board above DC power supply 3040, the winding support 50 above circuit board 40 and the first winding coil 60 being set on winding support 50.DC power supply30 be lithium battery.

Shell includes the bottom shell 11 and top shell 12 being oppositely arranged, the first side of top shell 12 and separate bottomThe position setting of portion's shell 11 is connected with shaft 122, top shell between two link blocks 121 there are two opposite link block 121The position of the second side of body 12 and separate bottom shell 11 has been provided projectingly raised line 123.Top shell 12 is far from bottom shell11 top is provided with the first arc groove 124 along its length.

Upper cover part 20 includes shell 201 and the second winding coil 70 being set in shell 201.

The bottom of the first side of shell 201 is set there are two hook 21, and hook 21 and the shaft 122 of top shell 12 rotateConnection, the bottom of the second side of shell 201 are connected with U-shaped shackle member 22, are formed and are opened between U-shaped shackle member 22 and shell 201Mouth 221, U-shaped shackle member 22 movably cooperate with the raised line 123 of top shell 12, so that raised line 123 is located in opening 221,To realize being fixedly connected between shell 201 and top shell 12.

Upper cover part 20 is provided with the second arc groove of recess towards corresponding first arc groove 124 in the end face of main part 1023.Cable is formed between first arc groove 124 and the second arc groove 23 and accommodates section, is passed through for current supply cable 100.

The shape of first winding coil 60 and the second winding coil 70 is U-shaped or C font.

Referring to FIG. 7, being equipped with coil accommodation groove 24 in shell 201, the inner sidewall of coil accommodation groove 24 is equipped with several prominentRib 25 out, the second winding coil 70 are located in coil accommodation groove 24 and abut and be interference fitted with rib 25.

Referring to FIG. 8, being provided with functional integrated circuit 41, charging circuit 42 and radio receiving transmitting module 43 on circuit board 40.

DC power supply 30 is all connected with functional integrated circuit 41 and charging circuit 42, and radio receiving transmitting module 43 and function are integratedCircuit 41 connects.DC power supply 30 is the power supply of functional integrated circuit 41, and charging circuit 42 is used to charge to DC power supply 30,Functional integrated circuit 41 is used to receive the inductive signal of detecting cable 100 and is rectified to inductive signal, overvoltage protection, heightThe processing such as frequency filtering, steady pressure treatment and the conversion of analog and digital signal (A-D) signal.Radio receiving transmitting module 43 is for integrating functionThe signal that the processing of circuit 41 obtains is sent by way of wireless transmission.External radio concentrator collects wireless receiving and dispatching mouldThe signal that block 43 issues.

First winding coil 60 has the first induction coil 61 and the second induction coil 62, the both ends of the first induction coil 61It is connect with functional integrated circuit 41, the both ends of the second induction coil 62 are connect with charging circuit 42.

Second winding coil 70 has third induction coil 71 and the 4th induction coil 72, third induction coil 71 and the 4thInduction coil 72 is connect with external equipment.

Referring to FIG. 9, functional integrated circuit 41 includes four rectifier diode D1-D4, inductance CZ1-CZ2, capacitor C1-C4, resistance R1-R3 and main control chip U1.

The first end of first induction coil 61 is connect with the anode of rectifier diode D1, and the cathode with rectifier diode D3Connection；The second end of first induction coil 61 is connect with the cathode of rectifier diode D4, and is connected with the anode of rectifier diode D2It connects, the cathode of rectifier diode D1 is connect with the cathode of rectifier diode D2, the anode and rectifier diode of rectifier diode D3The anode of D4 connects.

The cathode of rectifier diode D1 is connect by inductance CZ1 with the first end of capacitor C1, the anode of rectifier diode D4It is connect by inductance CZ2 with the second end of capacitor C1.

The first end of capacitor C1 is connect by resistance R1 with the first input end of main control chip U1, and the second end of capacitor C1 is logicalResistance R3 is crossed to connect with the second input terminal of main control chip U1.

Resistance R2 is connected between the first end and second end of capacitor C1.

Capacitor C4 is connected between the first input end of main control chip U1 and the second input terminal, and the first of main control chip U1 is defeatedEnter end to be grounded by capacitor C2, the second input terminal of main control chip U1 is grounded by capacitor C3.

Main control chip U1 is the MSP430 series monolithic of Texas Instruments's production.

Referring to FIG. 10, charging circuit 42 include four rectifier diode D5-D8, thermistor RT, zener diode D9,Capacitor C5-C10, diode D10-D12, resistance R4-R6, inductance L1 and voltage stabilizing chip U2, model LM2596-ADJ are exportableSteady dc voltage.

The first end of second induction coil 62 is connect with the anode of rectifier diode D5, and the cathode with rectifier diode D7Connection；The second end of second induction coil 62 is connect with the cathode of rectifier diode D8, and is connected with the anode of rectifier diode D6It connects, the cathode of rectifier diode D5 is connect with the cathode of rectifier diode D6, the anode and rectifier diode of rectifier diode D8The anode of D7 connects.

The cathode of rectifier diode D5 is connect by thermistor RT with the first foot of voltage stabilizing chip U2, rectifier diode D8Anode connect with the third foot of voltage stabilizing chip U2 and the 5th foot.

Zener diode D9, capacitor C5, capacitor C6, capacitor C7 are arranged in parallel the first foot and third foot in voltage stabilizing chip U2Between.

The anode of diode D10 is connect with the crus secunda of voltage stabilizing chip U2, and cathode is connect with the first foot of voltage stabilizing chip U2.

The anode of diode D11 is connect with the third foot of voltage stabilizing chip U2, and cathode is connect with the crus secunda of voltage stabilizing chip U2.

The crus secunda of voltage stabilizing chip U2 connect by inductance L1 with the anode of diode D12, the cathode of diode D12 with directlyThe anode connection in galvanic electricity source 30.

The anode of diode D12 is connected by the cathode of resistance R4, R6 and DC power supply 30.The 4th foot of voltage stabilizing chip U2Node between resistance R4 and resistance R6 is connect, and the anode of diode D12 also passes through the 4th of resistance R5 and voltage stabilizing chip U2Foot connection.

Capacitor C8-C10 is arranged in parallel between the anode of diode D12 and the cathode of DC power supply 30.

Radio receiving transmitting module 43 is Zigbee module.

Compared with prior art, the current transformer of the invention based on Radio Transmission Technology include main part 10 and withMain part 10 be flexibly connected upper cover part 20, main part 10 include shell, positioned at the intracorporal DC power supply 30 of shell, be located atThe circuit board 40 of the top of DC power supply 30, the winding support 50 above circuit board 40 and be set on winding support 50 theOne winding coil 60, the top of shell are provided with the first arc groove 124 along its length, upper cover part 20 include shell 201 andThe second winding coil 70 being set in shell 201, upper cover part 20 correspond to the first arc groove towards the end face of main part 10124 are provided with the second arc groove 23 of recess, and functional integrated circuit 41, charging circuit 42 and wireless receipts are provided on circuit board 40Module 43 is sent out, DC power supply 30 is all connected with functional integrated circuit 41 and charging circuit 42, radio receiving transmitting module 43 and function collectionIt is connected at circuit 41, DC power supply 30 is the power supply of functional integrated circuit 41, and charging circuit 42 is for filling DC power supply 30Electricity.So it is integrated with various functional circuits, with wireless transmission function and with preferable dustproof and waterproof function.

The foregoing is merely a prefered embodiment of the invention, is not used to limitation protection scope of the present invention, any in the present inventionModification, equivalent replacement or improvement in spirit etc., all cover in scope of the presently claimed invention.

Claims (8)

1. a kind of current transformer based on Radio Transmission Technology, it is characterised in that: including main part (10) and and main partThe upper cover part (20) for dividing (10) to be flexibly connected, main part (10) include shell, are located at the intracorporal DC power supply of shell (30), positionCircuit board (40) above DC power supply (30), the winding support (50) being located above circuit board (40) and it is set to winding branchThe first winding coil (60) on frame (50), the top of shell are provided with the first arc groove (124), upper cover part along its lengthIt (20) include shell (201) and the second winding coil (70) being set in shell (201), upper cover part (20) is towards main partThe second arc groove (23) for dividing the end face corresponding first arc groove (124) of (10) to be provided with recess, circuit board are provided on (40)Functional integrated circuit (41), charging circuit (42) and radio receiving transmitting module (43), DC power supply (30) and functional integrated circuit(41) and charging circuit (42) is all connected with, and radio receiving transmitting module (43) is connect with functional integrated circuit (41), DC power supply (30)For functional integrated circuit (41) power supply, charging circuit (42) is for charging to DC power supply (30).

2. as described in claim 1 based on the current transformer of Radio Transmission Technology, it is characterised in that: the DC power supplyIt (30) is lithium battery.

3. as described in claim 1 based on the current transformer of Radio Transmission Technology, it is characterised in that: the shell includes phaseTo the bottom shell (11) and top shell (12) of setting, the first side of top shell (12) and far from bottom shell (11)Position setting is connected with shaft (122), top shell between two link blocks (121) there are two opposite link block (121)(12) position of second side and separate bottom shell (11) has been provided projectingly raised line (123), the first side of shell (201)Bottom set there are two link up with (21), hook (21) and top shell (12) shaft (122) be rotatablely connected, shell (201)The bottom of second side is connected with U-shaped shackle member (22), and opening (221) is formed between U-shaped shackle member (22) and shell (201),Raised line (123) is movably located in opening (221).

4. as described in claim 1 based on the current transformer of Radio Transmission Technology, it is characterised in that: first winding wireThe shape for enclosing (60) and the second winding coil (70) is U-shaped or C font.

5. as described in claim 1 based on the current transformer of Radio Transmission Technology, it is characterised in that: the shell (201)Interior to be equipped with coil accommodation groove (24), the inner sidewall of coil accommodation groove (24) is equipped with several ribs (25) outstanding, the second windingCoil (70) is located in coil accommodation groove (24) and is interference fitted with rib (25).

6. as described in claim 1 based on the current transformer of Radio Transmission Technology, it is characterised in that: first winding wireEnclose (60) have the first induction coil (61) and the second induction coil (62), the both ends of the first induction coil (61) with function collectionIt is connected at circuit (41), the both ends of the second induction coil (62) are connect with charging circuit (42).

7. as claimed in claim 6 based on the current transformer of Radio Transmission Technology, it is characterised in that: the integrated electricity of the functionRoad (41) includes four rectifier diode D1-D4, inductance CZ1-CZ2, capacitor C1-C4, resistance R1-R3 and main control chip U1, theThe first end of one induction coil (61) is connect with the anode of rectifier diode D1, and is connect with the cathode of rectifier diode D3；TheThe second end of one induction coil (61) is connect with the cathode of rectifier diode D4, and is connect with the anode of rectifier diode D2, wholeThe cathode of stream diode D1 is connect with the cathode of rectifier diode D2, the anode of rectifier diode D3 and the sun of rectifier diode D4The cathode of pole connection, rectifier diode D1 is connect by inductance CZ1 with the first end of capacitor C1, and the anode of rectifier diode D4 is logicalIt crosses inductance CZ2 to connect with the second end of capacitor C1, the first input that the first end of capacitor C1 passes through resistance R1 and main control chip U1The second end of end connection, capacitor C1 is connect by resistance R3 with the second input terminal of main control chip U1, and resistance R2 is connected to capacitorBetween the first end and second end of C1, capacitor C4 is connected between the first input end of main control chip U1 and the second input terminal, mainThe first input end of control chip U1 is grounded by capacitor C2, and the second input terminal of main control chip U1 is grounded by capacitor C3.

8. as claimed in claim 6 based on the current transformer of Radio Transmission Technology, it is characterised in that: the charging circuit(42) include four rectifier diode D5-D8, thermistor RT, zener diode D9, capacitor C5-C10, diode D10-D12,Resistance R4-R6, inductance L1 and voltage stabilizing chip U2, the first end of the second induction coil (62) are connect with the anode of rectifier diode D5And it is connect with the cathode of rectifier diode D7；The second end of second induction coil (62) is connect simultaneously with the cathode of rectifier diode D8It is connect with the anode of rectifier diode D6；The cathode of rectifier diode D5 is connect with the cathode of rectifier diode D6, rectifies two polesThe anode of pipe D8 is connect with the anode of rectifier diode D7；The cathode of rectifier diode D5 passes through thermistor RT and voltage stabilizing chipThe first foot of U2 connects, and the anode of rectifier diode D8 is connect with the third foot of voltage stabilizing chip U2 and the 5th foot；Zener diodeD9, capacitor C5, capacitor C6, capacitor C7 are arranged in parallel between the first foot and third foot of voltage stabilizing chip U2；The sun of diode D10Pole is connect with the crus secunda of voltage stabilizing chip U2, and cathode is connect with the first foot of voltage stabilizing chip U2；The anode of diode D11 and pressure stabilizingThe third foot of chip U2 connects, and cathode is connect with the crus secunda of voltage stabilizing chip U2；The crus secunda of voltage stabilizing chip U2 passes through inductance L1It is connect with the anode of diode D12, the cathode of diode D12 is connect with the anode of DC power supply (30)；The anode of diode D12It is connected by the cathode of resistance R4, R6 and DC power supply (30), between the 4th foot and resistance R4 and resistance R6 of voltage stabilizing chip U2Node connection, the anode of diode D12 connect by resistance R5 with the 4th foot of voltage stabilizing chip U2；Capacitor C8-C10 parallel connection is setIt is placed between the anode of diode D12 and the cathode of DC power supply (30).