Temperature limiter and temperature controller linkage device with push rod reset structure

Abstract

The invention provides a temperature limiter and temperature controller linkage device with a push rod reset structure, and belongs to the technical field of electrical protection equipment.The temperature limiter and temperature controller linkage device comprises a temperature controller, the temperature controller is connected with a first power mechanism and an adjusting shaft, a temperature limiting assembly is arranged on one side of the temperature controller, and the temperature limiter and temperature controller linkage device further comprises a reset assembly used for resetting the temperature limiting assembly; the beneficial effects of the invention are that the external reset assembly is linked with the reset rod of the temperature limiting assembly, after the temperature limiter triggers protection, the reset rod extends out of the protective housing, an operator only needs to press a corresponding part, the reset rod can be driven to retract, the reconnection of the active contact and the static contact is realized, and the safety of the temperature limiter is ensured. In the whole process, the device shell or the temperature limiter body does not need to be disassembled, the problem that in a traditional design, reset needs to be disassembled, so that maintenance efficiency is low is solved, convenience of device maintenance is improved, meanwhile, contact resistance can be reduced by increasing the contact area, and stable operation of a circuit is guaranteed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electrical protection equipment, in particular to a temperature limiter with a push rod reset structure and a temperature controller linkage device. BACKGROUND

[0002] The temperature controller is widely used in coffee pot water dispenser, water heater, refrigerator and other household appliances as temperature control or temperature protection. The automatic reset temperature controller is used for temperature control, and the manual reset temperature limiter is used for temperature protection. Most of the water heaters on the market use automatic reset temperature controllers and manual reset temperature limiters at the same time to meet the needs of automatic temperature control and over-temperature protection. According to the requirements of users for convenient installation and small space of the temperature controller, the integration of the automatic reset temperature controller and the manual reset temperature limiter can meet the user's demand.

[0003] In the prior art, when the temperature limiter is used, on the one hand, the installation structure of the temperature limiter causes the reset operation to be tedious and inefficient. The traditional temperature limiter is usually fixed in the shell of the equipment by bolts or buckles. The core reset rod is wrapped in the narrow gap between the shell and the temperature limiter body, and is completely in a closed or semi-closed state. When the device triggers the protection mechanism due to over-temperature, if the reset is needed, the operator must first disassemble the fixing screws of the shell (some devices also need to disassemble the insulation layer, decorative panel and other auxiliary structures) to expose the reset rod and operate. This process not only takes a long time (for complex equipment, a single reset may take 30-60 minutes), but also may cause the sealing performance of the shell to decrease (such as the aging of the sealing ring and the screw slipping) due to frequent disassembly, thereby affecting the overall protection effect (such as the waterproof and dustproof performance) of the equipment. In industrial production lines or emergency scenes at home, this inefficient reset method will directly delay the restart time of the equipment, and may even cause secondary failure due to improper operation. On the other hand, the fatigue and aging of the core components easily lead to reset failure. The core control elements (such as the diaphragm box and the memory alloy spring) of the temperature limiter are in a high-low temperature alternating cycle working environment for a long time, and the metal crystal structure will gradually fatigue and damage. After thousands of cold and hot cycles, the thermal expansion coefficient matching degree of the active layer and the passive layer of the diaphragm box decreases, and the elastic modulus significantly attenuates, so that the diaphragm box cannot rebound to the initial shape after the temperature recovers, causing the contact to be in an open or closed state for a long time, and completely losing the temperature control function. For example, the diaphragm box of the temperature limiter for a water heater may appear "plastic deformation residual" after repeatedly experiencing high-temperature temperature fluctuations. Even if the temperature decreases to the safe range, the metal sheet remains bent, and the contact cannot be closed again, causing the device to be continuously powered off. Conversely, if the metal sheet elasticity attenuates to cause insufficient deformation, the contact cannot be disconnected, so that the device loses the over-temperature protection ability and has the risk of overheating and fire, causing the temperature limiter to completely fail and must be replaced, increasing the maintenance cost and downtime of the equipment. How to invent a temperature limiter with a push rod reset structure and a temperature controller linkage device to solve these problems has become a problem to be solved by the technical personnel in the field. SUMMARY

[0004] In order to make up for the above shortcomings, the present application provides a temperature limiter with a push rod reset structure and a temperature controller linkage device, which aims to solve the problem of.

[0005] The present application is implemented as follows:

[0006] The present application provides a temperature limiter with a push rod reset structure and a temperature controller linkage device, which includes a temperature controller connected with a power mechanism one and an adjusting shaft, and a temperature limiting assembly on one side of the temperature controller, and further includes:

[0007] A reset assembly connected with the temperature controller, the reset assembly being used for resetting the temperature limiting assembly.

[0008] Preferably, the temperature limiting assembly comprises a protective shell, one end of the protective shell is provided with a temperature sensing cover, the temperature sensing cover is connected with a power mechanism two, one end of the temperature sensing cover is connected with a metal spring.

[0009] Preferably, the inside of the protective shell is provided with a placing groove, the inner wall of the placing groove is provided with a tab terminal, one end of the tab terminal penetrates through the side wall of the protective shell, and one of the tab terminals is detachably connected with the temperature controller.

[0010] Preferably, the inner wall of the placing groove is slidably connected with a pressing plate, one end of the pressing plate is fixedly connected with a jacking rod, the other end of the pressing plate is fixedly connected with a reset rod, and the jacking rod and the reset rod respectively penetrate through the two end side walls of the protective shell.

[0011] Preferably, the inside of the placing groove is provided with a telescopic spring and a touch plate, one end of the touch plate is fixedly connected with one of the tab terminals, the other end of the touch plate is fixedly connected with a main contact and an auxiliary contact, one end of the telescopic spring is fixedly connected with the inner wall of the placing groove, the other end of the telescopic spring is fixedly connected with an annular damping piece, the annular damping piece is fixedly connected with the side wall of the touch plate, and the touch plate is located below the pressing plate.

[0012] Preferably, one end of the other pair of tab terminals is fixedly connected with a static contact, and the static contact is located above the main contact and the auxiliary contact.

[0013] Preferably, the reset assembly comprises a fixed plate, the fixed plate is connected with a screw, the fixed plate and the temperature controller are fixedly connected through the screw, the side wall of the fixed plate is provided with a through hole, the through hole is located on one side of the reset rod, the side wall of the fixed plate is fixedly connected with an ear plate, and the fixed plate is arranged in a T shape.

[0014] Preferably, the reset assembly further comprises a reset plate, the reset plate is arranged in an L shape, the reset plate is arranged in an L shape, the side wall of the reset plate is fixedly connected with an extension rod, the extension rod is rotatably connected with the ear plate, one end of the reset plate is fixedly connected with a protruding block, and the protruding block is located on one side of the reset rod.

[0015] Preferably, one end of the reset plate is fixedly connected with a pressing piece, one side of the pressing piece is fixedly connected with a stabilizing plate, the stabilizing plate is arranged in an L shape, and the side wall of the stabilizing plate is fixedly connected with a limiting plate.

[0016] Preferably, the reset assembly further comprises a reset spring, the reset spring is sleeved outside the stabilizing plate, and the two ends of the reset spring respectively abut against the limiting plate and the side wall of the reset plate.

[0017] The present application has the following advantages:

[0018] 1. The temperature limiter with push rod reset structure and the temperature controller linkage device of the application realize multiple significant beneficial effects through structural innovation and functional synergy. The device links the reset rod of the temperature limiting component through an external reset component (tablet, reset plate, protrusion, etc.). When the temperature limiter triggers protection, the reset rod extends out of the protective shell. The operator only needs to press the tablet to drive the reset rod to retract through the lever structure, re-connecting the active contact and static contact. The entire process does not require disassembly of the equipment shell or the temperature limiter body, solving the problem of low maintenance efficiency caused by the need to disassemble in traditional designs. It is especially suitable for rapid maintenance scenarios of household appliances such as water heaters and microwave ovens. The reset component uses a lever structure with an "L" shaped reset plate to amplify external operating force, with the assistance of the reset spring's rebound, significantly reducing the force requirement for manual reset. Even in a small installation environment, the operation can be easily completed, improving the convenience of equipment maintenance.

[0019] 2. The inclined design of the contact plate allows the auxiliary contact (conical, small volume) to contact the active contact and static contact first, forming a "point contact". The high current density quickly breaks through the oxide layer on the surface of the contact, ensuring effective conduction of the metal body. Then the active contact and static contact become "face contact", reducing contact resistance by increasing contact area to ensure stable operation of the circuit. This design fundamentally solves the "virtual connection" problem caused by oxidation of traditional contacts. The extension spring provides progressive force during the contact on-off process, allowing the contacts to separate slowly and reducing arc erosion. At the same time, it buffers when the contact plate is bent, reducing fatigue loss caused by frequent deformation.

[0020] 3. The temperature controller and temperature limiting component are detachably connected through the plug-in terminal, forming a cooperative work system. The temperature controller sets the normal temperature threshold through the adjustment shaft, achieving precise temperature control of the equipment. The temperature limiting component quickly cuts off the circuit when the temperature exceeds the limit. The two work in a clear division of labor and mutual cooperation, covering all scenarios from normal operation to extreme over-temperature protection needs. The double contact design of the active contact and auxiliary contact, combined with the continuous force of the extension spring, provides double protection for circuit conduction, avoiding protection failure caused by single contact failure. Through the innovative design of "convenient reset + reliable contact + cooperative protection", the device not only solves the pain points of traditional temperature limiter reset complexity and contact failure, but also realizes efficient linkage of temperature control and temperature limiting. It provides long-term stable protection for the safe operation of electrical equipment, while reducing maintenance costs and operation threshold. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly introduced as follows. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation to the scope. Other related drawings can also be obtained by those skilled in the art without any creative effort.

[0022] Figure 1 is a schematic diagram of an overall reverse mounting structure of a temperature limiter and thermostat linkage device with a push rod reset structure provided by the embodiments of the present application;

[0023] Figure 2 is a schematic diagram of a temperature limiting assembly structure of a temperature limiter and thermostat linkage device with a push rod reset structure provided by the embodiments of the present application;

[0024] Figure 3 is a schematic diagram of a reset assembly structure of a temperature limiter and thermostat linkage device with a push rod reset structure provided by the embodiments of the present application;

[0025] Figure 4 is a schematic diagram of a bottom structure of a protective shell of a temperature limiter and thermostat linkage device with a push rod reset structure provided by the embodiments of the present application;

[0026] Figure 5 is a schematic diagram of a fixing plate structure of a temperature limiter and thermostat linkage device with a push rod reset structure provided by the embodiments of the present application;

[0027] Figure 6 is a schematic diagram of a reset plate structure of a temperature limiter and thermostat linkage device with a push rod reset structure provided by the embodiments of the present application;

[0028] Figure 7 is a schematic diagram of a reset assembly half-section structure of a temperature limiter and thermostat linkage device with a push rod reset structure provided by the embodiments of the present application;

[0029] Figure 8 is a schematic diagram of a bottom structure of a protective shell of a temperature limiter and thermostat linkage device with a push rod reset structure provided by the embodiments of the present application;

[0030] Figure 9 is a schematic diagram of an internal structure of a placing groove of a temperature limiter and thermostat linkage device with a push rod reset structure provided by the embodiments of the present application;

[0031] Figure 10 is a schematic diagram of a Figure 9 structure at A in FIG. 8.

[0032] In the figure: 1, temperature controller; 2, power mechanism one; 3, temperature limiting assembly; 31, protective shell; 32, tab terminal; 33, power mechanism two; 34, reset rod; 35, temperature sensing cover; 351, metal spring; 36, ejector rod; 37, pressing plate; 38, extension spring; 39, touch plate; 310, placement slot; 311, active contact; 312, static contact; 313, auxiliary contact; 314, annular damping piece; 4, adjustment shaft; 5, reset assembly; 51, pressing piece; 511, stabilizing plate; 512, limiting plate; 52, reset spring; 53, ear plate; 54, fixed plate; 541, through hole; 55, reset plate; 551, extension rod; 552, protrusion; 56, screw. DETAILED DESCRIPTION

[0033] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0034] Embodiment one

[0035] Reference Figures 1-10 A temperature limiter with a push rod reset structure and a temperature controller linkage device, comprising a temperature controller 1, the temperature controller 1 is connected with a power mechanism one 2 and an adjustment shaft 4, one side of the temperature controller 1 is provided with a temperature limiting assembly 3, and the temperature limiter further comprises:

[0036] A reset assembly 5, the reset assembly 5 is connected with the temperature controller 1, and the reset assembly 5 is used for resetting the temperature limiting assembly 3.

[0037] Further, the temperature limiting assembly 3 comprises a protective shell 31, one end of the protective shell 31 is provided with a temperature sensing cover 35, the temperature sensing cover 35 is connected with a power mechanism two 33, one end of the temperature sensing cover 35 is connected with a metal elastic sheet 351; the inside of the protective shell 31 is provided with a placing groove 310, the inner wall of the placing groove 310 is provided with a tab terminal 32, one end of the tab terminal 32 penetrates through the side wall of the protective shell 31, and one of the tab terminals 32 is detachably connected with the temperature controller 1; the inner wall of the placing groove 310 is slidably connected with a pressing plate 37, one end of the pressing plate 37 is fixedly connected with a top rod 36, the other end of the pressing plate 37 is fixedly connected with a reset rod 34, and the top rod 36 and the reset rod 34 respectively penetrate through the two end side walls of the protective shell 31; the inside of the placing groove 310 is provided with a telescopic spring 38 and a touch plate 39, one end of the touch plate 39 is fixedly connected with one of the tab terminals 32, the other end of the touch plate 39 is fixedly connected with a main contact 311 and an auxiliary contact 313, one end of the telescopic spring 38 is fixedly connected with the inner wall of the placing groove 310, the other end of the telescopic spring 38 is fixedly connected with an annular damping sheet 314, the annular damping sheet 314 is fixedly connected with the side wall of the touch plate 39, and the touch plate 39 is located below the pressing plate 37; one end of the other tab terminal 32 is fixedly connected with a static contact 312, and the static contact 312 is located above the main contact 311 and the auxiliary contact 313.

[0038] The temperature limiting assembly 3 and the temperature controller 1 are used as shown in Figure 1 and Figure 2 The temperature limiting assembly 3 and the temperature controller 1 are stably connected through a specific structure to form a whole that works cooperatively, the adjusting shaft 4 on the temperature controller 1 can be flexibly rotated, the temperature threshold of the temperature controller 1 can be accurately set by rotating the adjusting shaft 4, the temperature control requirements of different devices are met, the power mechanism one 2 and the power mechanism two 33 are core components for temperature sensing and energy conversion, can sensitively sense the temperature change inside the device, and convert heat energy into mechanical energy for driving the temperature controller 1 or the temperature limiting assembly 3 to act, and the specific working principle belongs to mature technology in the field, which will not be described in detail here;

[0039] The temperature sensing cover 35 is connected to the metal spring 351 by sealing, and the cavity formed by the two is filled with a special expansion liquid. When the temperature of the device rises and approaches the preset warning value, the expansion liquid in the cavity expands and increases in volume, generating an outward pushing force, which causes the metal spring 351 to deform. The deformed metal spring 351 will squeeze the ejector rod 36. This force is transmitted to the pressure plate 37 through the ejector rod 36, causing the pressure plate 37 and the reset rod 34 connected to it to move away from the temperature sensing cover 35. During the movement of the pressure plate 37, it will exert pressure on the lower contact plate 39, causing the contact plate 39 to elastically deform. The deformation of the contact plate 39 will cause the active contact 311 and the auxiliary contact 313 at the end of the contact plate 39 to move synchronously, eventually separating from the upper static contact 312, thereby cutting off the circuit and achieving short circuit protection function, effectively preventing the device from being damaged due to continuous high temperature;

[0040] The telescopic spring 38 on one side of the contact plate 39 plays an important buffering role in this process. When the contact plate 39 is squeezed and bent, the telescopic spring 38 will be compressed, absorbing part of the impact force and reducing the instantaneous stress on the contact plate 39, thereby reducing the fatigue caused by repeated deformation and ensuring the long-term use effect and stability of the contact plate 39. When the temperature of the device drops to a safe range and the circuit needs to be restored, the outer cover does not need to be removed, and the operation is very convenient. Only the reset rod 34 needs to be pressed directly, which will cause the pressure plate 37 to move in the opposite direction, releasing the pressure on the contact plate 39. Under the action of the elasticity of the contact plate 39 and the resilience of the telescopic spring 38, the active contact 311 and the auxiliary contact 313 will re-contact the static contact 312, re-connecting the circuit and restoring the device to a normal working state.

[0041] Example Two

[0042] Reference Figures 3-7Further, the reset assembly 5 comprises a fixed plate 54 connected with a screw 56, the fixed plate 54 and the temperature controller 1 are fixedly connected through the screw 56, a side wall of the fixed plate 54 is provided with a through hole 541 located at one side of the reset rod 34, the side wall of the fixed plate 54 is fixedly connected with an ear plate 53, and the fixed plate 54 is provided in a T shape; the reset assembly 5 further comprises a reset plate 55 provided in an L shape, the reset plate 55 is provided in an L shape, a side wall of the reset plate 55 is fixedly connected with an extension rod 551 rotatably connected with the ear plate 53, one end of the reset plate 55 is fixedly connected with a protruding block 552 located at one side of the reset rod 34; one end of the reset plate 55 is fixedly connected with a pressing plate 51, one side of the pressing plate 51 is fixedly connected with a stabilizing plate 511 provided in an L shape, a side wall of the stabilizing plate 511 is fixedly connected with a limiting plate 512; the reset assembly 5 further comprises a reset spring 52 sleeved outside the stabilizing plate 511, and two ends of the reset spring 52 are respectively abutted against the limiting plate 512 and the side wall of the reset plate 55.

[0043] The overall process of the reset operation is coordinated with the structure: on the basis of the original temperature control and temperature limiting integrated design, a complete closed-loop protection mechanism is formed by adding the reset assembly 5, when the equipment triggers the protection function of the temperature limiting assembly 3 due to over-temperature, the metal spring sheet 351 is deformed due to the pushing force of the expanded liquid in the temperature sensing cover 35, the top rod 36, the pressing plate 37 and the reset rod 34 are synchronously moved away from the temperature sensing cover 35, then the pressing plate 37 extrudes the contact plate 39, the contact plate 39 is elastically deformed, finally the active contact 311 is separated from the static contact 312 to cut off the circuit, at this time, the reset rod 34 extends outside the protective shell 31 to provide an operation fulcrum for manual reset;

[0044] When the reset operation is performed, the external force applied to the pressing plate 51 is efficiently transmitted through the lever structure of the "L"-shaped reset plate 55. The reset plate 55 rotates around the rotating connection of the extension rod 551 and the ear plate 53 as the axis, and the protrusion 552 at the end thereof is pushed in the direction of the reset rod 34 and generates continuous extrusion as the rotation progresses. After the reset rod 34 is stressed, it is retracted into the interior of the protective shell 31, and the top rod 36 is reversely moved by the pressing plate 37, gradually extruding the metal spring 351 to restore it from the deformed state to the initial shape. During this process, the elastic reset of the metal spring 351 provides a precise reference positioning for the entire mechanism, ensuring that each transmission component returns to the preset initial position. At the same time, the contact plate 39 slowly returns to the original position under the elastic tension of the extension spring 38, pushing the active contact 311 and the auxiliary contact 313 to approach the static contact 312 until the contact is completed to realize the conduction of the circuit. This fundamentally avoids the problem of incomplete reset caused by insufficient reset force or component jamming in traditional designs. The synergistic advantages of this structure are reflected in three aspects: first, the lever principle amplifies the external operating force, reducing the force requirement for manual reset, and even in a small installation environment, it can be easily operated; second, the continuous elastic force of the extension spring 38 provides stable pressure for the contact, ensuring that the contacts are tightly fitted and avoiding the "virtual connection" risk; third, without the need to disassemble any external cover, the reset can be completed, greatly improving the equipment maintenance efficiency, especially suitable for rapid maintenance scenarios of household appliances such as water heaters and microwave ovens.

[0045] The graded contact mechanism and protection design of contact reset: In the key stage of contact reset, due to the inclined setting of the contact plate 39, the auxiliary contact 313 and the active contact 311 form a natural height difference, so that the auxiliary contact 313 can contact the static contact 312 before the active contact 311. The auxiliary contact 313 adopts a conical design and has a small volume. This structural feature enables it to form "point contact" in the initial stage of contact, and the small contact area greatly increases the current density, which can quickly break through the oxide layer that may be formed on the surface of the contact due to long-term use, ensuring effective conduction between the contact metal bodies. With the continuous release of elastic potential energy of the extension spring 38, the contact plate 39 elastically bends under the elastic force, and the active contact 311 gradually fits with the static contact 312, smoothly transitioning from "point contact" to "surface contact". By increasing the contact area, the contact resistance is effectively reduced, ensuring the stable operation of the circuit. In the process of contact disconnection, the gradual rebounding characteristic of the extension spring 38 plays an important role. It allows the contacts to separate slowly, avoiding high-intensity arcs generated by instantaneous separation, thereby reducing the erosion of the contact surface by arcs. At the same time, this gradual action also slows down the impact speed of the contact plate 39 during deformation, reducing the fatigue loss of the contact plate 39 due to frequent deformation, further prolonging the service life of the contact;

[0046] In addition, the annular damping piece 314 (material can be selected by butyl rubber or metal damping composite material) pasted at the connecting end of the telescopic spring 38 and the touch plate 39 can play a significant damping effect during the operation of the device. When the device produces mechanical vibration, the damping piece will generate internal friction with the movement of the touch plate 39, and part of the vibration energy will be converted into internal energy and consumed, thereby effectively weakening the influence of external vibration on the touch plate 39, avoiding poor contact or misoperation of the touch point due to vibration, and ensuring that the entire temperature limiting and temperature control linkage device remains stable and reliable in a complex working environment. This reset mechanism, through the cooperation of various components, not only realizes convenient and efficient reset operation, but also significantly improves the reliability and service life of the device through the hierarchical contact design of the touch point and the multiple protection structure, ensuring that it can stably play the temperature control and over-temperature protection functions in long-term use.

[0047] It should be noted that the specific model and specification of the electrical device need to be selected and determined according to the actual specification of the device. The specific selection calculation method uses existing technology in the art, so it will not be described in detail.

[0048] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A linkage device for a temperature limiter and a temperature controller with a push rod reset structure, comprising a temperature controller (1), wherein the temperature controller (1) is connected to a power mechanism (2) and an adjusting shaft (4), characterized in that, The temperature controller (1) is provided with a temperature limiting component (3) on one side, and also includes: Reset component (5), which is connected to the temperature controller (1), is used to reset the temperature limiting component (3).

2. The linkage device between the temperature limiter and the temperature controller with a push rod reset structure according to claim 1, characterized in that, The temperature limiting component (3) includes a protective shell (31), one end of which is provided with a temperature sensing cover (35), the temperature sensing cover (35) is connected to a power mechanism (33), and one end of the temperature sensing cover (35) is connected to a metal spring (351).

3. The linkage device between the temperature limiter and the temperature controller with a push rod reset structure according to claim 2, characterized in that, The protective housing (31) has a placement slot (310) inside. The inner wall of the placement slot (310) is provided with a plug terminal (32). One end of the plug terminal (32) passes through the side wall of the protective housing (31). One plug terminal (32) is detachably connected to the temperature controller (1).

4. The linkage device between the temperature limiter and the temperature controller with a push rod reset structure according to claim 3, characterized in that, A pressure plate (37) is slidably connected to the inner wall of the placement groove (310). A top rod (36) is fixedly connected to one end of the pressure plate (37), and a reset rod (34) is fixedly connected to the other end of the pressure plate (37). The top rod (36) and the reset rod (34) respectively penetrate the two end side walls of the protective shell (31).

5. The linkage device between the temperature limiter and the temperature controller with a push rod reset structure according to claim 4, characterized in that, The placement slot (310) is provided with a telescopic spring (38) and a contact plate (39). One end of the contact plate (39) is fixedly connected to a pair of insert terminals (32). The other end of the contact plate (39) is fixedly connected to an active contact (311) and an auxiliary contact (313). One end of the telescopic spring (38) is fixedly connected to the inner wall of the placement slot (310). The other end of the telescopic spring (38) is fixedly connected to an annular damping plate (314). The annular damping plate (314) is fixedly connected to the side wall of the contact plate (39). The contact plate (39) is located below the pressure plate (37).

6. The linkage device between the temperature limiter and the temperature controller with a push rod reset structure according to claim 5, characterized in that, Another pair of insert terminals (32) has a stationary contact (312) fixedly connected to one end, the stationary contact (312) being located above the active contact (311) and the auxiliary contact (313).

7. A linkage device for a temperature limiter and a temperature controller with a push rod reset structure according to claim 2, characterized in that, The reset assembly (5) includes a fixing plate (54), which is connected to screws (56). The fixing plate (54) and the thermostat (1) are fixedly connected by screws (56). A through hole (541) is provided on the side wall of the fixing plate (54), which is located on one side of the reset rod (34). An ear plate (53) is fixedly connected to the side wall of the fixing plate (54). The fixing plate (54) is arranged in a "T" shape.

8. The linkage device between the temperature limiter and the temperature controller with a push rod reset structure according to claim 7, characterized in that, The reset assembly (5) further includes a reset plate (55), which is L-shaped. An extension rod (551) is fixedly connected to the side wall of the reset plate (55), and the extension rod (551) is rotatably connected to the ear plate (53). A protrusion (552) is fixedly connected to one end of the reset plate (55), and the protrusion (552) is located on one side of the reset rod (34).

9. A linkage device for a temperature limiter and a temperature controller with a push rod reset structure according to claim 8, characterized in that, One end of the reset plate (55) is fixedly connected to a pressure plate (51), and one side of the pressure plate (51) is fixedly connected to a stabilizing plate (511). The stabilizing plate (511) is arranged in an "L" shape, and a limit plate (512) is fixedly connected to the side wall of the stabilizing plate (511).

10. A linkage device for a temperature limiter and a temperature controller with a push rod reset structure according to claim 9, characterized in that, The reset assembly (5) also includes a reset spring (52), which is sleeved on the outside of the stabilizing plate (511). The two ends of the reset spring (52) abut against the side wall of the limiting plate (512) and the reset plate (55), respectively.

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