CN210967367U - Composite heating type heat storage soldering iron - Google Patents

Abstract

The utility model discloses a compound hot type heat-retaining type flatiron that adds, including hollow flatiron core, flatiron core one end is provided with the soldering iron, the flatiron core other end is connected with the handle, and is hollow be provided with interior heater strip in the flatiron core, the nearly handle end of interior heater strip is connected with the internal heating electric wire, flatiron core overcoat is equipped with hollow heat-retaining metal block, the flatiron core is equipped with outer heater strip outward around being equipped with, outer heater strip is located the cavity of heat-retaining metal block. The heating device has the advantages of simple structure, multiple heating modes, rapid heating, small influence of the ambient temperature and convenient use.

Description

Composite heating type heat storage soldering iron

Technical Field

The utility model relates to a flatiron technical field especially relates to a compound hot type heat storage type flatiron that adds.

Background

The electric soldering iron is a necessary tool for electronic production and electric appliance maintenance, is mainly used for welding electronic components and wires, and can be divided into an internal heating type electric soldering iron and an external heating type electric soldering iron according to mechanical structures.

The existing common internally heated electric soldering iron has a hollow cylindrical soldering iron head, a heating element is covered by the soldering iron head, the preheating time is short, the internal heat power is generally below 50W, and the internal heat power is usually about 20W-30W, so that the influence of the change of the environmental temperature is large when the environmental temperature is low. The common external heating resistance wire is arranged outside the soldering bit, most heat is radiated to the external space, so the heating efficiency is low, and the heating speed is slow. Generally, the welding can be carried out after preheating for 6-7 minutes. The external heating type induction soldering iron is less influenced by the change of the environmental temperature, but because the electric heating wire embedded outside the soldering iron head of the alternating current power supply adopted by the external heating type induction soldering iron easily generates induction voltage on the soldering iron head, the induction voltage can influence the soldered electronic element, and the electronic element can be burnt out seriously, so when the field effect tube element and the chip are soldered, the soldering iron can be performed only by power failure or grounding wires.

Therefore, it is an urgent technical problem to be solved by those skilled in the art to design a composite heating type heat storage soldering iron that is fast in heating, less affected by ambient temperature, and convenient to use.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a compound hot type heat storage type flatiron that adds, fine solution above-mentioned problem, its simple structure has multiple heating methods, the heating rapidly, receive ambient temperature to influence for a short time, convenient to use.

The technical scheme of the utility model a compound hot type heat storage type flatiron that adds, including hollow flatiron core, flatiron core one end is provided with the soldering bit, the flatiron core other end is connected with the handle, and is hollow be provided with interior heater strip in the flatiron core, the nearly handle end of interior heater strip is connected with the internal heating electric wire, the flatiron core overcoat is equipped with hollow heat-retaining metal block, the flatiron core is equipped with outer heater strip outward around being equipped with, outer heater strip is located the cavity of heat-retaining metal block.

Further, the inner heating wire penetrates through the handle to be connected with an inner heating plug.

Further, the internal heating plug is a 220V alternating current plug.

Furthermore, the outer heating wire is connected with an outer heating socket through an outer heating wire, and the outer heating socket is arranged on the heat storage metal block.

Further, the external heating socket is a 12V direct current socket.

Further, the tip is integrally manufactured with the core.

Furthermore, a flame heating surface is arranged on the heat storage metal block.

Furthermore, the cross section of the heat storage metal block is fan-shaped, and the flame heating surface is a fan-shaped linear surface.

Furthermore, the heat storage metal block is coated with a heat insulation layer except for the flame heating surface.

Further, be connected with bimetallic strip thermometer on the heat-retaining metal block, bimetallic strip thermometer includes temperature measurement conduction pole, spiral bending formula bimetallic strip, calibrated scale and pointer, temperature measurement conduction pole one end inserts in the heat-retaining metal block, the temperature measurement conduction pole other end and the interior stiff end fixed connection of spiral bending formula bimetallic strip, temperature measurement conduction pole is located calibrated scale central point and puts, calibrated scale and heat-retaining metal block surface fixed connection, the pointer holds fixed connection with the outer activity of spiral bending formula bimetallic strip.

The utility model has the advantages that:

1. the utility model has two electric heating modes of the inner heating wire and the outer heating wire, the heating modes are flexible and various, and the heat storage metal block is arranged at the same time, so that the heat can be prevented from being dissipated too fast, the heating efficiency is improved, and the heat insulation and storage effect is good;

2. the internal heating wire generates heat, an alternating current 220V power supply is used for supplying power, the electric power is conveniently supplied by commercial power, the internal heating type heating is realized, induction voltage is not easy to generate on the soldering iron head, the problems of burning out of electronic elements and the like are avoided, and the electronic elements such as a field effect tube and the like are welded so that the soldering iron does not need to be powered off; the external heating wire adopts a direct-current power supply, the magnetic field is constant, and no induction voltage is generated on the soldering iron head, so that the soldering iron can be soldered without power failure when electronic elements such as a field effect tube and the like are soldered, and the soldering efficiency is improved; the inner heating wire and the outer heating wire are both positioned in the heat storage metal block, and the heat storage metal block forms a shielding shell, so that the formation of induction voltage can be avoided, and further, the induction voltage generated by an alternating current power supply is prevented from burning out welded electronic elements;

3. when no electricity is used for heating, open-fire heat sources such as alcohol lamps can be used for heating the heating surface of the heat storage metal block, the temperature of the soldering iron is determined through the bimetallic thermometer on the heat storage metal block, then soldering of electronic components is carried out, simple electronic component welding can be realized under the condition of no power supply, the application range of the soldering iron is further enlarged, the application is wider, and the use is more convenient.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

fig. 2 is a schematic view of the internal structure of the first embodiment of the present invention;

FIG. 3 is a schematic cross-sectional view taken along line A-A of FIG. 2;

fig. 4 is a schematic view of the internal structure of a second embodiment of the present invention;

FIG. 5 is a schematic view of a first cross-sectional structure at B-B in FIG. 4;

FIG. 6 is a schematic view of a second cross-sectional structure at B-B in FIG. 4;

FIG. 7 is a schematic structural view of a bimetallic thermometer;

in the figure: 1. a soldering iron core; 2. a soldering bit; 3. a handle; 4. an inner heating wire; 5. an internal heating wire; 6. a heat storage metal block; 7. an outer heating wire; 8. an internal heating plug; 9. an external heating wire; 10. an external heating socket; 11. a flame heating surface; 12. a heat-insulating layer; 13. a bimetallic strip thermometer; 131. a temperature measurement conduction rod; 132. a spirally curved bimetallic strip; 133. a dial scale; 134. a pointer.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", etc. indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the utility model is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The first embodiment is as follows: as shown in fig. 1-3, the utility model provides a compound hot type heat storage type flatiron that adds, includinghollow flatiron core 1, 1 one end of flatiron core is provided withsoldering bit 2, the 1 other end of flatiron core is connected withhandle 3, and is hollow be provided withinterior heater strip 4 in theflatiron core 1, the 3 ends of the nearly handle ofinterior heater strip 4 are connected with interior heatingelectric wire 5, 1 overcoat of flatiron core is equipped with hollow heat-retainingmetal block 6, theflatiron core 1 is outer around being equipped withouter heater strip 7,outer heater strip 7 is located the cavity of heat-retainingmetal block 6. The utility model discloses the flatiron has two kinds of electric heating methods ofinterior heater strip 4 andouter heater strip 7, and the heating method is nimble various, has heat-retainingmetal block 6 simultaneously, can prevent the too fast dissipation of heat, improves heating efficiency, has good heat preservation heat-retaining effect; the heatstorage metal block 6 and theiron core 1 are fixedly connected through a screw or a fixing lug boss.

The inner heating wire 5 is connected with an inner heating plug 8 through thehandle 3. The inner heating plug 8 is a 220V alternating current plug. Theinner heating wire 4 generates heat, an alternating current 220V power supply is used for supplying power, the electric power is supplied by commercial power, the electricity is convenient to get, the inner heating type heating is realized, the induction voltage is not easy to generate on thesoldering bit 2, and electronic elements such as a field effect tube and the like can be soldered so that the soldering iron does not need to be powered off.

Theexternal heating wire 7 is connected with anexternal heating socket 10 through anexternal heating wire 9, and theexternal heating socket 10 is arranged on the heatstorage metal block 6. Theexternal heating socket 10 is a 12V direct current socket. If theexternal heating wire 7 is used for heating, a 12V direct current vehicle-mounted power supply can be used, and the safety is higher because of the 12V safety voltage and the direct current power supply, the insulation requirement of theexternal heating wire 7 is much lower than that of a common external heating type soldering iron, and meanwhile, the direct current power supply and the magnetic field are constant, so that induction voltage cannot be generated on thesoldering iron head 2, and power failure of the soldering iron is avoided when electronic elements such as a field effect tube and the like are soldered.

Thesoldering iron head 2 and thesoldering iron core 1 are manufactured integrally, and heat transfer is rapid and reliable.

And theinner heating wire 4 and theouter heating wire 7 are both positioned inside the heatstorage metal block 6, and the heatstorage metal block 6 forms a shielding shell, so that the formation of induction voltage can be avoided, and the induction voltage generated by an alternating current power supply is further prevented from burning out welded electronic elements.

Example two: as shown in fig. 4-6, on the basis of the first embodiment, aflame heating surface 11 is disposed on the heatstorage metal block 6. The heatstorage metal block 6 is coated with aheat insulation layer 12 except aflame heating surface 11. When no commercial power, vehicle-mounted power supply and other power supplies are available, the heating surface of the heatstorage metal block 6 can be heated by using an open-fire heat source such as an alcohol lamp, the temperature of the soldering iron is determined according to the temperature of the bimetallic strip on the heatstorage metal block 6, and then electronic components are soldered. The heat-insulatinglayer 12 is made of heat-insulating materials such as aluminum silicate heat-insulating cotton, and a heat-insulating shell, such as a rubber layer, is sleeved outside the heat-insulating materials. Simple electronic element welding can be realized under the condition of no power supply, the application range of the soldering iron is further improved, the application is wider, and the use is more convenient.

The heatstorage metal block 6 is connected with abimetallic strip thermometer 13. As shown in fig. 7:bimetallic strip thermometer 13 includes temperaturemeasurement conduction pole 131, spiral bend formulabimetallic strip 132, calibratedscale 133 andpointer 134, temperaturemeasurement conduction pole 131 one end is inserted in heat-retainingmetal block 6, the temperaturemeasurement conduction pole 131 other end and spiral bend formulabimetallic strip 132's interior stiff end fixed connection, temperaturemeasurement conduction pole 131 is located calibratedscale 133 central point and puts, calibratedscale 133 and 6 outer fixed surface connections of heat-retaining metal block,pointer 134 and spiral bend formulabimetallic strip 132's outer movable end fixed connection. The spiral bendingbimetallic strip 132 is made of copper and iron materials. Specifically, the method comprises the following steps: apointer 134 for indicating the amount of heat of the soldering iron heatstorage metal block 6; adial 133 marked with caloric value; spiral-bent bimetal 132: bending displacement is generated at different temperatures; the temperature measurement conduction rod 131: transferring heat to the spirallybent bimetal 132. The temperature sensingconductive rod 131 is inserted into theheat storage block 6 of the soldering iron, rather than the soldering iron tip, because the soldering iron needs to meet two requirements, the first being the temperature (typically the melting point of solder is 183 ℃). The second point is to maintain a constant heat supply at this temperature, which if not continued, will result in a cold joint or solder failure when the tin melting point is reached. If it is only considered that the tip temperature reaches the melting point of tin, it is likely to cause insufficient heat supply. And measuring the temperature of the heat storage metal block, wherein C is the specific heat of the heat storage block and m is the mass of the heat storage block according to the heat quantity Q (Cm) (t2-t1), and the temperature variation before and after heat storage is (t2-t 1). The amount of heat stored in the soldering iron can be determined to determine whether the soldering condition is satisfied.

The measurement process comprises the following steps: when the heatstorage metal block 6 absorbs heat and the temperature rises, the temperature measuringconduction rod 131 conducts heat to the inner fixed end of the spiral bending typebimetallic strip 132, the spiral bending typebimetallic strip 132 is bent and deformed after being heated, and the outer movable end of the spiral bending typebimetallic strip 132 is connected with thepointer 134, so that thepointer 134 generates displacement deflection, and thedial 133 correspondingly indicates the heat value currently stored by the soldering iron.

As shown in fig. 5 and 6, the heatstorage metal block 6 may have a square or fan-shaped cross section. When the cross section of the heatstorage metal block 6 is fan-shaped, theflame heating surface 11 is a fan-shaped straight line surface, and theheat preservation layer 12 is coated on the arc line surface, so that the heat preservation effect is better.

Of course, the present invention may have other embodiments, and those skilled in the art may make various corresponding changes and modifications according to the present invention without departing from the spirit and the essence of the present invention, and these corresponding changes and modifications should fall within the protection scope of the appended claims.

Claims (10)

1. Compound heating formula heat-retaining type flatiron, its characterized in that: including hollow flatiron core (1), flatiron core (1) one end is provided with soldering bit (2), flatiron core (1) other end is connected with handle (3), and is hollow be provided with interior heater strip (4) in flatiron core (1), interior heater strip (4) nearly handle (3) end is connected with interior heating electric wire (5), flatiron core (1) overcoat is equipped with hollow heat-retaining metal block (6), flatiron core (1) is outer around being equipped with outer heater strip (7), outer heater strip (7) are located the cavity of heat-retaining metal block (6).

2. A composite heating type heat storage type soldering iron according to claim 1, wherein: the inner heating wire (5) penetrates through the handle (3) and is connected with an inner heating plug (8).

3. A composite heating type heat storage type soldering iron according to claim 2, wherein: the internal heating plug (8) is a 220V alternating current plug.

4. A composite heating type heat storage type soldering iron according to claim 1, wherein: the external heating wire (7) is connected with an external heating socket (10) through an external heating wire (9), and the external heating socket (10) is arranged on the heat storage metal block (6).

5. The composite heating type heat storage type soldering iron according to claim 4, wherein: the external heating socket (10) is a 12V direct current socket.

6. A composite heating type heat storage type soldering iron according to claim 1, wherein: the soldering iron head (2) and the soldering iron core (1) are manufactured integrally.

7. A composite heating type heat storage type soldering iron according to claim 1, wherein: the heat storage metal block (6) is provided with a flame heating surface (11).

8. A composite heating type heat storage type soldering iron according to claim 7, wherein: the cross section of the heat storage metal block (6) is fan-shaped, and the flame heating surface (11) is a fan-shaped linear surface.

9. A composite heating type heat storage type soldering iron according to claim 7, wherein: the heat storage metal block (6) is coated with a heat insulation layer (12) except for the flame heating surface (11).

10. A composite heating type heat storage type soldering iron according to claim 1, wherein: be connected with bimetallic strip thermometer (13) on heat-retaining metal block (6), bimetallic strip thermometer (13) are including temperature measurement conduction pole (131), spiral bend formula bimetallic strip (132), calibrated scale (133) and pointer (134), temperature measurement conduction pole (131) one end is inserted in heat-retaining metal block (6), the internal fixation end fixed connection of temperature measurement conduction pole (131) other end and spiral bend formula bimetallic strip (132), temperature measurement conduction pole (131) are located calibrated scale (133) central point and are put, calibrated scale (133) and heat-retaining metal block (6) external fixed surface are connected, pointer (134) and the outer movable end fixed connection of spiral bend formula bimetallic strip (132).

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