Disclosure of Invention
The invention aims to provide a device for expanding a channel, so as to solve the problems in the background technology.
In order to achieve the purpose, the device for expanding the channel comprises a junction box, a first direct current switch and a second direct current switch, wherein the first direct current switch and the second direct current switch are both arranged on the junction box, two first diode radiating plates and two second diode radiating plates are arranged on the junction box, and the two second diode radiating plates are located below the two first diode radiating plates.
Preferably, the first diode heat dissipation plate is provided with a first charging diode and a second charging diode, and the first charging diode and the second charging diode are respectively connected to the first direct current switch and the second direct current switch.
Preferably, the first discharge diode and the second discharge diode are respectively installed on the two second diode radiating plates, and the first discharge diode and the second discharge diode are respectively connected to the first direct current switch and the second direct current switch.
Preferably, the junction box is provided with a first voltage detection diode and a second voltage detection diode, and the first voltage detection diode and the second voltage detection diode are respectively connected with the first charging diode and the second charging diode.
Preferably, the first voltage detection diode and the second voltage detection diode are respectively connected with a first power resistor and a second power resistor, and the first power resistor and the second power resistor are respectively connected with a first direct current switch and a second direct current switch
Preferably, the first direct current switch, the second direct current switch, the first diode cooling plate and the second diode cooling plate are all installed on the junction box through screws.
The beneficial effects of the invention are as follows:
the invention solves the problem of flexible addition and subtraction of the test channel of the high-power test equipment, and achieves the purposes of reducing the product cost and improving the test efficiency and the use value of the equipment.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
Example 1
Referring to fig. 1, an apparatus for expanding a channel includes a junction box 1, a first dc switch 2 and a second dc switch 3, the first dc switch 2 and the second dc switch 3 are both installed on the junction box 1, two first diode heat dissipation plates 4 and two second diode heat dissipation plates 7 are installed on the junction box 1, the two second diode heat dissipation plates 7 are located under the two first diode heat dissipation plates 4, a first charging diode 5 and a second charging diode 6 are installed on the two first diode heat dissipation plates 4 respectively, the first charging diode 5 and the second charging diode 6 are connected to the first dc switch 2 and the second dc switch 3 respectively, a first discharging diode 8 and a second discharging diode 9 are installed on the two second diode heat dissipation plates 7 respectively, the first discharging diode 8 and the second discharging diode 9 are connected to the second dc switch 2 and the second dc switch 3 respectively, a first voltage detection diode 10 and a second voltage detection diode 10 are installed on the junction box 1, the second charging diode 5 and the second charging diode 6 are connected to the first dc switch 2 and the second dc switch 1 through a PIN, the first power detection diode is connected to the second dc switch 2 and the second charging diode 1 through a first PIN detection resistor and a second PIN detection resistor 12, the first discharging diode 8 and the second discharging diode 9 are connected to the second dc switch 2 and the second dc switch 3 respectively, the first discharging diode 7 is connected to the second PIN detection resistor 1 and the second PIN detection resistor is connected to the second PIN1 through the second PIN detection resistor respectively, the first dc switch 2 and the second PIN detection resistor is connected to the second PIN detection resistor respectively, the voltage detection diode is connected with the charging diode in parallel and connected with a PIN1 (1 CH is connected with 1CH, 2CH is connected with 2 CH) of a direct current switch, the power resistor is connected with the voltage detection diode in series, and the devices are combined to form a detection channel device of an expansion channel.
Example 2
Referring to fig. 2,1, connection scheme:
① The connection mode of the discharging process is as follows:
1CH:1# positive pole of product, discharging direct current switch PIN4, discharging direct current switch PIN2, anode of discharging diode of 1CH, cathode of discharging diode, positive pole of testing equipment, negative pole of 1# product, and negative pole of equipment.
2CH 2# positive pole, discharging DC switch PIN3, discharging DC switch PIN1, discharging diode anode of 2CH, discharging diode cathode, testing device positive pole, 2# product negative pole, and device negative pole.
② The charging process connection mode is as follows:
1CH:1# positive pole of product, charging direct current switch PIN4, charging direct current switch PIN2, charging diode cathode of 1CH, charging diode anode, testing device positive pole, 1# negative pole of product, and device negative pole.
2CH 2# positive pole of product, charging direct current switch PIN3, charging direct current switch PIN1, charging diode cathode of 2CH, charging diode anode, testing device positive pole, 2# negative pole of product, and device negative pole.
③ Charging voltage detection connection mode:
1CH:1# product positive electrode, charging direct current switch PIN4, charging direct current switch PIN2, resistor A end, resistor B end, 1CH voltage detection diode positive electrode, voltage detection diode negative electrode, testing equipment positive electrode, 1# product negative electrode and equipment negative electrode.
2CH:2# positive pole of product- & gtcharging DC switch PIN 4- & gtcharging DC switch PIN 2- & gtresistor A end- & gtresistor B end- & gtanode of voltage detection diode of 2 CH- & gtcathode of voltage detection diode- & gtpositive pole of test equipment, 2# negative pole of product- & gtnegative pole of equipment.
2. Working principle:
The single channel of the test equipment is converted into two channels through the test tool and the control part, charging and discharging in the test tool are separately controlled, the charging and discharging directions are controlled according to the charging and discharging diode, and the equipment can work only after collecting voltage during the charging test, so the equipment outputs voltage to the equipment through the current limiting resistor and the diode, and the equipment charges products after detecting the voltage.
3. And (3) control:
① Discharge control:
After the products 1# and 2# are electrified, the discharging direct current switch is closed (the charging direct current switch is required to be opened when the discharging direct current switch is closed), then the discharging diode of the test tool is used for isolating the energy of each product into an independent individual, the problem of energy conversion between the products can not occur, and the products 1# and 2# output power to the test equipment at the same time when the test starts to work.
② And (3) charging control:
And after the 1# and 2# products are electrified, the charging direct current switch is closed (the discharging direct current switch is required to be opened when the charging direct current switch is closed), then the charging diode of the test tool is used for isolating the energy of each product to separate individuals, the problem of energy conversion between the products can not occur, the voltage detection diode is used for providing a voltage signal for the test equipment, and the test equipment can be started to charge the products when the voltage signal of the products is received in the test.
4. The functions are as follows:
① Current backflow prevention function:
The energy between the products is isolated through the diode, and the problem of energy backflow still does not occur between the products when the energy difference occurs between the products.
② Charging voltage detects acquisition function:
the voltage is provided to the detection end of the test equipment through a power resistor and a voltage detection diode, wherein the power resistor is used for limiting the current to pass, and the voltage acquisition diode is used for preventing the energy backflow problem between products.
③ Energy leveling function:
the energy leveling function can be automatically carried out on products on the same testing tool testing channel through the charging and discharging diode in the charging and discharging process, the energy of two products is not on one platform when the products are tested for the first time, the required power is certain according to the energy balance rule when the products are charged and discharged, the larger the emitted power with high energy is, and the smaller the output power with low energy is.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.