An electric heater pressure applying device

Abstract

The present application relates to a kind of electric heater pressure device, belong to electric heater installation technical field.Solve the problem that spacecraft groove side wall polyimide film type electric heater cannot be used sandbag, bandage etc. after sticking, and the uneven stress of electric heater after artificial pressure affects sticking quality.The electric heater pressure device of the present application, including shell, battery assembly, drive assembly, driving ring, controllable circuit board and pressure assembly;Controllable circuit board controls the work of drive motor, torque conversion gear is rotated under the driving of drive motor, driving ring moves under the driving of torque conversion gear, and then the top rod of pressure assembly is retracted, and electric heater is pressed.The pressure device presses during the solidification of electric heater, greatly improves the pressing efficiency of electric heater after sticking, avoids the phenomenon that electric heater is not well stuck due to limited space and cannot be continuously pressed, and is easy to carry, and has strong applicability.

Description

Technical Field

[0001] This invention belongs to the field of electric heater installation technology, specifically relating to an electric heater pressure application device, which is particularly suitable for polyimide film type electric heaters for spacecraft groove sidewalls. Background Technology

[0002] Under normal circumstances, the thermal control of spacecraft or equipment can be met by thermal control technologies such as heat dissipation and heat insulation. However, due to the influence of various factors such as spacecraft orbit, attitude, and equipment operating mode, thermal control technologies such as heat dissipation and heat insulation alone are often insufficient to meet the minimum operating temperature requirements of the equipment. In this case, heating technology is required to ensure that equipment in low-temperature environments can work normally or meet the requirements for low-temperature survival (equipment not working).

[0003] Heating technology is the most commonly used design method in the design of spacecraft thermal control systems. Electric heating technology is currently the most common heating technology in spacecraft thermal control systems. Its working method is to install electric heaters on the components that need to be heated, and then pass electricity to them to convert electrical energy into heat energy output.

[0004] Polyimide film electric heaters are widely used in projects. They consist of two or more layers of polyimide film as insulation, with alloy foil or alloy wire as the heating element in the middle. They are very thin, generally less than 0.2 mm, and have low density, low thermal inertia, and strong radiation resistance. They are particularly suitable for temperature control of precision instruments, and the operating temperature generally does not exceed 125℃.

[0005] After the electric heater is attached, appropriate pressure should be applied according to the surface shape of the thermal control device to improve the bonding strength. Different pressure application methods can be used depending on the surface shape; for example, sandbags or bandages can be used. The next step can only be carried out after the electric heater has completely cured. However, due to limited space, most space-constrained electric heaters on the sidewalls of spacecraft cannot be pressurized using these methods. Furthermore, the inability to maintain continuous pressure can easily lead to lifting and detachment of the electric heater. Manual pressure application is also inefficient, and uneven pressure can affect the bonding quality. Therefore, effectively solving the problem of uneven pressure application for electric heaters on the sidewalls of spacecraft is a pressing issue for those skilled in the art. Summary of the Invention

[0006] In view of this, the present invention provides an electric heater pressure application device to solve the problems in the prior art that the polyimide film electric heater on the side wall of the spacecraft groove cannot be pressured by sandbags, bandages or other means after it is pasted, and that the uneven force on the electric heater after manual pressure affects the pasting quality. The pressure application device is easy to carry, has strong applicability and is easy to operate.

[0007] The technical solution adopted by the present invention to solve the above-mentioned technical problems is as follows.

[0008] The electric heater pressure application device of the present invention includes a housing, a battery assembly, a drive assembly, a drive ring, a controllable circuit board, and a pressure application assembly;

[0009] The outer casing includes a shell and a cover plate; the shell is a hollow container with an opening at the top, and the cover plate is detachably fixed to the opening at the top of the shell;

[0010] The battery assembly consists of a battery base, a battery, and a conductive sheet. The battery base is fixed inside the housing, and the battery and conductive sheet are installed inside the battery base. The positive and negative terminals of the battery are connected to the positive and negative terminals of the conductive sheet, respectively.

[0011] The drive assembly consists of a drive motor, a drive motor mounting base, and a torque conversion gear. The drive motor mounting base is fixed inside the housing. The drive motor and the torque conversion gear are installed inside the drive motor mounting base. The drive motor is connected to a controllable circuit board via wires. One end of the torque conversion gear is connected to the drive motor shaft, and the other end extends out of the drive motor mounting base and connects with the drive ring gear. The drive motor can rotate clockwise and counterclockwise, and drives the drive ring to move within the groove of the push rod guide of the first pressure push rod assembly through the torque conversion gear.

[0012] The drive ring is composed of a toothed component and a connecting component. The toothed component is a rectangular frame structure with toothed structures on the inner walls of its two opposite long sides. The toothed structures are connected to the end of the torque conversion gear that extends out of the drive motor mounting base. The connecting component is an L-shaped plate. One plate of the L-shaped plate is fixedly connected to the toothed component, and the other plate is fixedly connected to the top rod of the first pressure-applying top rod assembly.

[0013] The controllable circuit board is fixed inside the housing and connected to the conductive sheet via wires. Two elastic buttons are fixed on the controllable circuit board, which respectively control the drive motor to rotate clockwise and counterclockwise.

[0014] The pressure-applying assembly includes a first pressure-applying push rod assembly, a second pressure-applying push rod assembly, a linkage gear, and a rotating shaft. Both the first and second pressure-applying push rod assemblies consist of a push rod, a push rod guide, and a pressure plate. The push rod guide is a cylindrical structure open at both ends, fixed inside the housing. The push rod is an L-shaped plate, with one plate fitted inside the push rod guide and slidingly engaging with it. The inner wall of the plate at the sliding engagement position has a toothed structure. The other plate of the L-shaped plate is located outside the housing and fixedly connected to the inner surface of the pressure plate. The side wall of the push rod guide has... The assembly has an opening that mates with the toothed structure of the push rod, and the side wall of the push rod guide of the first pressure push rod assembly has a sliding groove to provide movement space for the connection between the connector and the push rod; a rotating shaft is set between the first pressure push rod assembly and the second pressure push rod assembly, one end of which is rotatably connected to the housing, and the other end is fixedly connected to the linkage gear; the two sides of the linkage gear respectively mesh with the toothed structure of the push rod of the first pressure push rod assembly and the second pressure push rod assembly, and the push rods of the first pressure push rod assembly and the second pressure push rod assembly move in opposite directions under the drive of the linkage gear;

[0015] The cover plate is provided with two extension elastic buttons, which are respectively connected to two press elastic buttons.

[0016] Furthermore, the side wall of the battery base is provided with wiring holes.

[0017] Furthermore, the battery has a voltage of 9V.

[0018] Furthermore, another plate of the connector is provided with a pin hole, which is fixedly connected to the top rod of the first pressure-applying top rod assembly by means of a pin.

[0019] Furthermore, the drive motor mounting base has wiring holes on its side wall.

[0020] Furthermore, the drive motor is connected to the controllable circuit board via wires, and the connection is fixed by welding.

[0021] The controllable circuit board is connected to the conductive sheet via wires, and the connection position is fixed by welding.

[0022] Furthermore, the torque conversion gear consists of a driving gear, a first driven gear set, a second driven gear set, a third driven gear set, and a fixed component. The first driven gear set consists of a first main gear, a first auxiliary gear, and a first cylindrical rod. The first main gear and the first auxiliary gear are integrally formed and rotatably connected to the first cylindrical rod. The second driven gear set consists of a second main gear, a second auxiliary gear, and a second cylindrical rod. The second main gear and the second auxiliary gear are integrally formed and rotatably connected to the second cylindrical rod. The third driven gear set consists of a third main gear, a third auxiliary gear, and a third cylindrical rod. The third main gear and the third auxiliary gear are respectively fixed to the first driven gear set. The three cylindrical rods have two ends; the fixing component consists of a first layer plate, a second layer plate, and a third layer plate that are fixedly connected; both the second and third layer plates have through holes, the first cylindrical rod passes through the through hole of the second layer plate and its two ends are fixed to the first and third layer plates respectively, the two ends of the second cylindrical rod are fixed to the second and third layer plates respectively, and the third cylindrical rod is rotatably connected to the through hole of the third layer plate; the drive gear is connected to the drive motor shaft, rotates under the drive of the drive motor, and meshes with the first main gear, the first auxiliary gear with the second main gear, the second auxiliary gear with the third main gear, and the third auxiliary gear with the toothed structure of the gear meshing component.

[0023] Furthermore, the two pressable elastic buttons are an ON elastic button and an OFF elastic button. When the ON elastic button is pressed continuously, the drive motor rotates clockwise, and when the OFF elastic button is pressed continuously, the drive motor rotates counterclockwise.

[0024] Furthermore, the controllable circuit board is a PCB circuit board.

[0025] Furthermore, the outer surface of the pressure plate is provided with a rubber anti-slip pad.

[0026] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0027] The electric heater pressure application device provided by this invention is portable and compact, allowing operators to complete the pressure application work on the electric heaters on the side wall within the limited recess space of the spacecraft. It has strong practicality, maximizes work efficiency, and by using the electric heater pressure application device of this invention, a single person can complete the pasting and pressure application work on all electric heaters on the side wall of the spacecraft recess, effectively saving manpower, improving the pasting quality of the electric heaters, and avoiding the occurrence of poor pasting. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the specific embodiments of the present invention, the accompanying drawings used in the specific embodiments will be briefly introduced below. Obviously, the drawings described below are only some specific embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the electric heater pressure application device provided by the present invention;

[0030] Figure 2 This is a schematic diagram of the battery assembly in the electric heater pressure application device provided by the present invention;

[0031] Figure 3 This is a schematic diagram of the drive component in the electric heater pressure application device provided by the present invention;

[0032] Figure 4 This is a schematic diagram of the drive component in the electric heater pressure application device provided by the present invention;

[0033] Figure 5 This is a schematic diagram of the drive ring in the electric heater pressure application device provided by the present invention;

[0034] Figure 6 This is a schematic diagram of the controllable circuit board in the electric heater pressure application device provided by the present invention.

[0035] Figure 7 A schematic diagram of the pressure-applying component in the electric heater pressure-applying device provided by the present invention;

[0036] Figure 8 This is a schematic diagram of the pressure-applying component in the electric heater pressure-applying device provided by the present invention;

[0037] Figure 9 This is a schematic diagram of the structure of the outer cover in the electric heater pressure device provided by the present invention;

[0038] Figure label:

[0039] 1. Housing; 2. Battery assembly; 2-1. Battery base; 2-2. Battery; 2-3. Conductive sheet; 3. Drive motor; 4. Drive ring; 4-1. Gears and components; 4-2. Connector; 4-3. Toothed structure; 5. Controllable circuit board; 6. Push rod; 7. Linkage gear; 8. Torque conversion gear; 8-1. Drive gear; 8-2. First driven gear set; 8-3. Second driven gear set; 8-4. Third driven gear set; 9. Press-sensitive elastic button; 10. Cover plate; 11. Extended elastic button; 12. Rubber anti-slip pad; 13. Drive motor mounting base; 14. Push rod guide; 14-1. Rotating shaft; 15. Pressure plate. Detailed Implementation

[0040] To enable those skilled in the art to better understand the present invention, the technical solution of the present invention will be further described below in conjunction with specific embodiments.

[0041] Combination Figure 1 and Figure 9As shown, the electric heater pressure device of the present invention includes a housing, a battery assembly 2, a drive assembly, a drive ring 4, a controllable circuit board 5, and a pressure application assembly. The housing includes a shell 1 and a cover plate 10; the shell 1 is a hollow container with an open top, and the battery assembly 2, drive assembly, drive ring 4, controllable circuit board 5, and part of the pressure application assembly are all fixed inside the shell 1; the cover plate 10 is detachably fixed to the top opening of the shell 1, so that the electric heater pressure device can be in a sealed state, effectively reducing dust entry and affecting service life.

[0042] Combination Figure 2 As shown, the battery assembly 2 consists of a battery base 2-1, a battery 2-2, and a conductive plate 2-3. The battery base 2-1 is fixed inside the housing 1 by four screws. The side wall of the battery base 2-1 has wiring holes. The battery 2-2 and the conductive plate 2-3 are installed inside the battery base 2-1, and the positive and negative terminals of the battery 2-2 are connected to the positive and negative terminals of the conductive plate 2-3, respectively. The power rating of the battery 2-2 is set according to actual needs to ensure a long-term power supply, typically 9V. The battery assembly 2 serves as the power source for the electric heater pressure device of this invention.

[0043] Combination Figure 3 As shown, the drive assembly consists of a drive motor 3, a drive motor mounting base 13, and a torque conversion gear 8. The drive motor mounting base 13 is fixed inside the housing 1 by four screws. The drive motor 3 and the torque conversion gear 8 are installed inside the drive motor mounting base 13. The drive motor 3 is connected to the controllable circuit board 5 via wires, preferably by welding. One end of the torque conversion gear 8 is connected to the shaft of the drive motor 3, and the other end extends out of the drive motor mounting base 13 and connects with the gear teeth of the drive ring 4. The drive motor 3 can rotate clockwise and counterclockwise, and drives the drive ring 4 to move within the groove of the push rod guide 14 of the first pressure push rod assembly through the torque conversion gear 8. Figure 4As shown, preferably, the torque conversion gear 8 consists of a driving gear 8-1, a first driven gear set 8-2, a second driven gear set 8-3, a third driven gear set 8-4, and a fixing member. The fixing member consists of a first layer plate, a second layer plate, and a third layer plate that are fixedly connected. Both the second layer plate and the third layer plate are provided with through holes. The first driven gear set 8-2 consists of a first main gear, a first auxiliary gear, and a first cylindrical rod. The first main gear and the first auxiliary gear are integrally formed and rotatably connected to the first cylindrical rod. The first cylindrical rod passes through the through hole of the second layer plate and its two ends are fixed to the first layer plate and the third layer plate, respectively. The second driven gear set 8-3 consists of a second main gear and a second auxiliary gear. The first gear is formed by the first main gear and the second auxiliary gear, which are integrally formed and rotatably connected to the second cylindrical rod. The two ends of the second cylindrical rod are fixed to the second and third layer plates, respectively. The third driven gear set 8-4 is formed by the third main gear, the third auxiliary gear and the third cylindrical rod. The third main gear and the third auxiliary gear are fixed to the two ends of the third cylindrical rod, and the third cylindrical rod is rotatably connected to the through hole of the third layer plate. The driving gear 8-1 is connected to the shaft of the drive motor 3 and rotates under the drive of the drive motor 3. It meshes with the first main gear, the first auxiliary gear with the second main gear, the second auxiliary gear with the third main gear, and the third auxiliary gear with the toothed structure of the gear meshing component. When the drive motor 3 starts, the driving gear 8-1 starts to rotate, and then drives the first driven gear set 8-2, the second driven gear set 8-3 and the third driven gear set 8-4 that mesh with it. The third driven gear set 8-4 drives the driving ring 4 to move, thereby realizing the linkage between the drive component and the pressure component. The mechanical force generated by the drive motor 3 is transmitted through the torque conversion gear 8 to achieve greater mechanical power.

[0044] Combination Figure 5 As shown, the driving ring 4 consists of a gear assembly 4-1 and a connecting member 4-2. The gear assembly 4-1 is a rectangular frame structure, with toothed structures 4-3 on the inner walls of its two opposite long sides. The toothed structures 4-3 mesh with the third gear of the torque conversion gear 8. The connecting member 4-2 is an L-shaped plate, with one plate fixedly connected to the gear assembly 4-1 and the other plate fixedly connected to the push rod 6 of the first pressure-applying push rod assembly. Preferably, the other plate has a pin hole, which is used to fix it to the push rod 6 of the second pressure-applying push rod assembly. The driving ring 4 acts as a linkage, realizing the linkage between the driving assembly and the pressure-applying assembly.

[0045] Combination Figure 6As shown, the controllable circuit board 5 is glued and fixed inside the housing 1, and connected to the conductive sheet 2-3 via wires, preferably by soldering. Two push-button elastic buttons 9 are soldered onto the controllable circuit board 5 as control ports. The two push-button elastic buttons 9 respectively control the drive motor 3 to rotate clockwise and counterclockwise, thus controlling the operation of the drive motor 3. If ON and OFF elastic buttons are soldered, continuously pressing the ON elastic button will cause the drive motor 3 to drive the push rod 6 to continuously apply pressure to the electric heaters at both ends until they are fully pressed in place. Releasing the ON elastic button will then fix the electric heaters to the side wall of the spacecraft groove. After the electric heaters have cured under pressure, pressing the OFF elastic button will return the electric heater pressure device to its initial state. The controllable circuit board 5 can be a PCB circuit board.

[0046] Combination Figure 7 and Figure 8 As shown, the pressure application assembly includes a first pressure-applying top rod assembly, a second pressure-applying top rod assembly, a linkage gear 7, and a rotating shaft 14-1. Both the first and second pressure-applying top rod assemblies consist of a top rod 6, a top rod guide 14, and a pressure plate 15. The top rod guide 14 is a cylindrical structure with open ends, providing a fixed sliding channel for the pressure-applying top rod assembly. Its base has four threaded holes and is fixed inside the housing 1 by countersunk screws. The top rod 6 is an L-shaped plate. One plate of the L-shaped plate is fitted inside the top rod guide 14 and slides in contact with the top rod guide 14. The inner side wall of the plate at the sliding contact position has a toothed structure. The other plate of the L-shaped plate is located outside the housing 1 and is fixedly connected to the inner surface of the pressure plate 15. Preferably, the outer surface of the pressure plate 15 is provided with rubber anti-slip pads 12, preferably two, to prevent slippage and secure the contact position with the electric heater. The side wall of the push rod guide 14 has an opening that mates with the toothed structure of the push rod 6, exposing the toothed structure of the push rod 6. The side wall of the push rod guide 14 of the first pressure push rod assembly also has a groove, providing movement space for the connection between the connector 4-2 and the push rod 6. A rotating shaft 14-1 is positioned between the two push rod guides 14, with one end rotatably connected to the housing 1 and the other end fixedly connected to the linkage gear 7. The linkage gear 7 drives the rotating shaft 14-1 to rotate stably. The two sides of the linkage gear 7 respectively engage with the toothed structure 6-1 of the first and second pressure push rod assemblies, causing the push rods 6 of the first and second pressure push rod assemblies to move in opposite directions. The driving ring 4 moves horizontally under the drive of the driving assembly, causing the push rod 6 of the first pressure push rod assembly to extend and retract horizontally within its push rod guide 14, and then, via the linkage gear 7, causes the push rod 6 of the second pressure push rod assembly to extend and retract horizontally within its push rod guide 14. Its telescopic length is adjustable to ensure that the electric heater receives sufficient force.

[0047] Combination Figure 9As shown, for ease of operation, it is preferable to provide two extended elastic buttons 11 on the cover plate 10. The two extended elastic buttons 11 are respectively connected to two press elastic buttons 9. By pressing the two extended elastic buttons 11, the controllable circuit board 5 can be controlled quickly and conveniently.

[0048] To facilitate understanding of the electric heater pressure application device provided in the specific embodiments of the present invention, the following description is provided in conjunction with usage scenarios:

[0049] When bonding electric heaters to the sidewalls of spacecraft recesses, the surface of the electric heater needs to be uniformly pressed during the curing of silicone rubber to avoid poor bonding such as air bubbles or lifting between the electric heater and the bonding substrate. However, conventional methods of applying pressure, such as sandbags or strapping, cannot be used on the sidewalls of recesses. It is difficult to apply pressure to the electric heater effectively, persistently and uniformly by hand. The electric heater pressure device of this invention can solve this problem well. After the electric heater is pasted, the operator first places the pressure device between the two electric heaters in the spacecraft groove, and then presses the ON elastic button on the pressure device cover plate 10. At this time, the internal drive motor 3 starts to rotate clockwise according to the electrical signal transmitted by the controllable circuit board 5. In order to achieve the most ideal pressure intensity, a set of torque conversion gears 8 are matched above the drive motor 3. Driven by the drive motor 3, the rotation ensures that the pressure device generates sufficient pressure to ensure that the electric heater is pasted firmly. The drive ring 4 moves under the drive of the torque conversion gears 8, which in turn drives the push rod 6 of the first pressure push rod assembly to extend horizontally in its push rod guide 14, and drives the push rod 6 of the second pressure push rod assembly to extend horizontally in its push rod guide 14 through the linkage gear 7. The ON elastic button is pressed continuously until the rubber anti-slip pad 12 on the outside of the push rod 6 completely presses the electric heater. Once the electric heater has fully cured, pressing the OFF elastic button on the cover plate 10 sends a counter-clockwise rotation electrical signal from the controllable circuit board 5 to the drive motor 3. This causes the ring 4 to move under the influence of the torque conversion gear 8, which in turn causes the push rod 6 of the first pressure push rod assembly to retract horizontally within its push rod guide 14. This retraction is then transmitted via the linkage gear 7 to the push rod 6 of the second pressure push rod assembly, which in turn retracts horizontally within its push rod guide 14 until it returns to its initial state. This pressure device can apply pressure to the electric heater at any height or width.

[0050] The electric heater pressurizing device provided in this invention solves the problem of not being able to pressurize hundreds of grooved sidewall electric heaters, improving the bonding quality and efficiency of the electric heaters. It effectively reduces the generation rate of air bubbles in the electric heaters and the replacement rate due to poor bonding. Furthermore, the device is portable and compact, allowing workers to easily complete the pressing of a large number of electric heaters inside spacecraft. It is highly practical, maximizing work efficiency. By using the electric heater pressurizing device of this invention, a single person can complete the bonding and pressing work of the electric heaters, effectively saving manpower and avoiding the low efficiency of manual, repeated pressing.

[0051] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the embodiments. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all embodiments here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. An electric heater pressure application device, characterized in that, It includes a housing, a battery assembly (2), a drive assembly, a drive ring (4), a controllable circuit board (5), and a pressure application assembly; The outer shell includes a shell (1) and a cover plate (10); the shell (1) is a hollow container with an open top, and the cover plate (10) is detachably fixed to the open top of the shell (1); The battery assembly (2) consists of a battery base (2-1), a battery (2-2), and a conductive sheet (2-3). The battery base (2-1) is fixed inside the housing (1). The battery (2-2) and the conductive sheet (2-3) are installed inside the battery base (2-1), and the positive and negative terminals of the battery (2-2) are connected to the positive and negative terminals of the conductive sheet (2-3), respectively. The drive assembly consists of a drive motor (3), a drive motor mounting base (13), and a torque conversion gear (8). The drive motor mounting base (13) is fixed inside the housing (1). The drive motor (3) and the torque conversion gear (8) are installed inside the drive motor mounting base (13). The drive motor (3) is connected to the controllable circuit board (5) through wires. One end of the torque conversion gear (8) is connected to the shaft of the drive motor (3), and the other end extends out of the drive motor mounting base (13) and is connected to the drive ring (4). The drive motor (3) can rotate clockwise and counterclockwise, and drives the drive ring (4) to move in the groove of the push rod guide (14) of the first pressure push rod assembly through the torque conversion gear (8). The drive ring (4) is composed of a toothed component (4-1) and a connecting component (4-2). The toothed component (4-1) is a rectangular frame structure, and toothed structures (4-3) are provided on the inner walls of the two opposite long sides. The toothed structures (4-3) are toothed and connected to one end of the torque conversion gear (8) that extends out of the drive motor mounting seat (13). The connecting component (4-2) is an L-shaped plate. One plate of the L-shaped plate is fixedly connected to the toothed component (4-1), and the other plate is fixedly connected to the top rod (6) of the first pressure top rod assembly. The controllable circuit board (5) is fixed inside the housing (1) and connected to the conductive sheet (2-3) by wires. Two elastic buttons (9) are fixed on the controllable circuit board (5). The two elastic buttons (9) control the drive motor (3) to rotate clockwise and counterclockwise respectively. The pressure-applying assembly includes a first pressure-applying push rod assembly, a second pressure-applying push rod assembly, a linkage gear (7), and a rotating shaft (14-1). Both the first and second pressure-applying push rod assemblies consist of a push rod (6), a push rod guide (14), and a pressure plate (15). The push rod guide (14) is a cylindrical structure with open ends, fixed inside the housing (1). The push rod (6) is an L-shaped plate. One plate of the L-shaped plate is fitted inside the push rod guide (14) and slides with the push rod guide (14). The inner wall of the plate at the sliding fit position is provided with a toothed structure. The other plate of the L-shaped plate is set outside the housing (1) and is fixedly connected to the inner surface of the pressure plate (15). The push rod guide (14) The side wall of the first pressure-applying top rod assembly has an opening that engages with the toothed structure of the top rod (6), and the side wall of the top rod guide (14) of the first pressure-applying top rod assembly has a sliding groove to provide moving space for the connection between the connector (4-2) and the top rod (6); the rotating shaft (14-1) is located between the first pressure-applying top rod assembly and the second pressure-applying top rod assembly, with one end rotatably connected to the housing (1) and the other end fixedly connected to the linkage gear (7); the two sides of the linkage gear (7) respectively engage with the toothed structure of the top rod (6) of the first pressure-applying top rod assembly and the second pressure-applying top rod assembly, and the top rod (6) of the first pressure-applying top rod assembly and the second pressure-applying top rod assembly moves in opposite directions under the drive of the linkage gear (7); Two extended elastic buttons (11) are provided on the cover plate (10), and the two extended elastic buttons (11) are respectively connected to two press elastic buttons (9).

2. The electric heater pressure application device according to claim 1, characterized in that, The battery base (2-1) has wiring holes on its side wall.

3. The electric heater pressure application device according to claim 1, characterized in that, The battery (2-2) has a capacity of 9V.

4. The electric heater pressure application device according to claim 1, characterized in that, The other plate of the connector (4-2) is provided with a pin hole, which is fixedly connected to the top rod (6) of the first pressure rod assembly by means of a pin.

5. The electric heater pressure application device according to claim 1, characterized in that, The drive motor mounting base (13) has wiring holes on its side wall.

6. The electric heater pressure application device according to claim 1, characterized in that, The drive motor (3) is connected to the controllable circuit board (5) by wires, and the connection position is fixed by welding; The controllable circuit board (5) is connected to the conductive sheet (2-3) by wires, and the connection position is fixed by welding.

7. The electric heater pressure application device according to claim 1, characterized in that, The torque conversion gear (8) consists of a driving gear (8-1), a first driven gear set (8-2), a second driven gear set (8-3), a third driven gear set (8-4), and a fixing component. The fixing component consists of a first layer plate, a second layer plate, and a third layer plate that are fixedly connected. Both the second and third layer plates are provided with through holes. The first driven gear set (8-2) consists of a first main gear, a first auxiliary gear, and a first cylindrical rod. The first main gear and the first auxiliary gear are integrally formed and rotatably connected to the first cylindrical rod. The first cylindrical rod passes through the through hole of the second layer plate and its two ends are fixed to the first layer plate and the third layer plate, respectively. The second driven gear set (8-3) consists of a second main gear and a second auxiliary gear. The second main gear and the second auxiliary gear are integrally formed and rotatably connected to the second cylindrical rod. The two ends of the second cylindrical rod are respectively fixed to the second layer plate and the third layer plate. The third driven gear set (8-4) is composed of the third main gear, the third auxiliary gear and the third cylindrical rod. The third main gear and the third auxiliary gear are respectively fixed to the two ends of the third cylindrical rod. The third cylindrical rod is rotatably connected to the through hole of the third layer plate. The driving gear (8-1) is connected to the shaft of the drive motor (3) and rotates under the drive of the drive motor (3). It meshes with the first main gear, the first auxiliary gear meshes with the second main gear, the second auxiliary gear meshes with the third main gear, and the third auxiliary gear meshes with the tooth structure of the gear meshing component.

8. The electric heater pressure application device according to claim 1, characterized in that, The two pressable elastic buttons (9) are an ON elastic button and an OFF elastic button. When the ON elastic button is pressed continuously, the drive motor (3) rotates clockwise, and when the OFF elastic button is pressed continuously, the drive motor (3) rotates counterclockwise.

9. The electric heater pressure application device according to claim 1, characterized in that, The controllable circuit board (5) is a PCB circuit board.

10. The electric heater pressure application device according to claim 1, characterized in that, The outer surface of the pressure plate (15) is provided with a rubber anti-slip pad (12).

Images