A high-temperature-resistant coupler of a household appliance

Abstract

A high-temperature resistant coupler for household appliances includes a coupling base assembly and a conductive spring. The conductive spring is mounted on the coupling base assembly. The upper end of the conductive spring has a first contact portion that contacts a heating element, and the lower end of the conductive spring has a second contact portion that contacts the coupling base assembly. The coupler also includes a high-temperature resistant spring disposed between the first and second contact portions. The first contact portion is in contact with the heating element under the elastic force of the high-temperature resistant spring. This high-temperature resistant coupler for household appliances, by incorporating a high-temperature resistant spring positioned between the first and second contact portions, provides support for the conductive spring, thereby ensuring that the first contact portion maintains contact with the heating element even at high temperatures. This prevents poor contact from affecting the power supply to the heating element. The high-temperature resistant spring can withstand temperatures above 300°C and consistently provides good support for the conductive spring at high temperatures.

Description

Technical Field

[0001] This utility model relates to the field of coupler technology, and in particular to a high-temperature resistant coupler for household appliances. Background Technology

[0002] Chinese Patent Document CN119655632A, published on March 21, 2025, discloses a thick-film baking pan, including a base assembly and a heating plate assembly. A coupling assembly is provided between the base assembly and the heating plate assembly, and the base assembly and the heating plate assembly are coupled together through the coupling assembly. The coupling assembly includes an upper coupling seat disposed at the bottom of the heating plate assembly and a lower coupling seat disposed on the base assembly, and the upper coupling seat and the lower coupling seat are coupled together. The upper coupler of this thick-film baking pan is electrically connected to the heating element through electrodes (i.e., conductive springs) to supply power to the heating element. However, when the heating element is working, its temperature exceeds 300°C, and the high temperature is transferred to the conductive spring. The conductive spring is made of copper and can withstand a temperature of approximately 200°C. The copper sheet will deform at temperatures above 300°C, which will lead to poor contact between the conductive spring and the heating element, affecting the power supply to the heating element.

[0003] Therefore, further improvements are necessary. Utility Model Content

[0004] The purpose of this invention is to provide a high-temperature resistant coupler for household appliances that is simple in structure, resistant to high temperatures, stable in operation, provides a good user experience, and is highly practical, so as to overcome the shortcomings of the prior art.

[0005] A high-temperature resistant coupler for a household appliance designed for this purpose includes a coupling base assembly and a conductive spring. The conductive spring is mounted on the coupling base assembly. The upper end of the conductive spring is provided with a first contact portion that contacts a heating element, and the lower end of the conductive spring is provided with a second contact portion that contacts the coupling base assembly. The feature is that it also includes a high-temperature resistant spring, which is disposed between the first contact portion and the second contact portion. The first contact portion contacts and adheres to the heating element under the elastic force of the high-temperature resistant spring.

[0006] The top of the first contact part has an upwardly protruding contact point, and the bottom of the heating component has a first contact surface, with the contact point and the first contact surface in contact and fit together.

[0007] The second contact part comes into contact with the coupling seat assembly under the elastic force of the high-temperature resistant spring.

[0008] The bottom of the second contact part is provided with a second contact surface, and the coupling seat assembly is provided with an upwardly protruding contact rib, and the second contact surface is in contact with and fits the contact rib.

[0009] The top of the second contact part is provided with a boss, and the lower end of the high-temperature resistant spring is fitted onto the boss.

[0010] The first contact part has a downward bend at one end, and the upper end of the high-temperature resistant spring is fitted onto the bend.

[0011] The upper end of the high-temperature resistant spring abuts against the first contact part, and the lower end of the high-temperature resistant spring abuts against the second contact part.

[0012] The coupling socket assembly includes an upper coupling socket and a lower coupling socket. The upper coupling socket is provided with pins, and the lower coupling socket is provided with sockets. The pins and sockets are inserted into each other to form a conductive contact.

[0013] The second contact part is provided with a socket hole, and the upper end of the pin is provided with a socket post. The conductive spring is sleeved on the socket post through the socket hole.

[0014] The conductive spring is C-shaped, and the high-temperature resistant spring is located on the opening of the C-shape of the conductive spring.

[0015] The high-temperature coupler for household appliances of this utility model incorporates a high-temperature resistant spring positioned between the first and second contact portions. This high-temperature resistant spring provides support for the conductive spring sheet, ensuring that the first contact portion remains in contact with the heating element even at high temperatures. This prevents poor contact from affecting the power supply to the heating element. The high-temperature resistant spring can withstand temperatures above 300°C and consistently provides good support for the conductive spring sheet even at high temperatures. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the assembly structure of the coupler and heating plate in one embodiment of the present invention.

[0017] Figure 2 for Figure 1 A magnified structural diagram of point A in the middle.

[0018] Figure 3 This is a schematic diagram of the overall structure of the coupler in one embodiment of the present invention.

[0019] Figure 4 This is a partial structural cross-sectional view of the coupler in one embodiment of the present invention.

[0020] Figure 5 for Figure 4 A magnified structural diagram at point B in the middle.

[0021] Figure 6 This is an exploded structural diagram of the conductive spring and the high-temperature resistant spring in one embodiment of the present invention.

[0022] Figure 7 This is a schematic diagram of the overall structure of the upper coupling seat in one embodiment of the present invention.

[0023] Figure 8This is an exploded view of the coupler in one embodiment of the present invention. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] See Figures 1-8 The high-temperature coupler of this household appliance includes a coupling base assembly 1 and a conductive spring 3. The conductive spring 3 is mounted on the coupling base assembly 1. The upper end of the conductive spring 3 is provided with a first contact portion 5 that contacts the heating element 4, and the lower end of the conductive spring 3 is provided with a second contact portion 6 that contacts the coupling base assembly 1. It also includes a high-temperature resistant spring 7, which is disposed between the first contact portion 5 and the second contact portion 6. The first contact portion 5 is in contact with the heating element 4 under the elastic force of the high-temperature resistant spring 7. The conductive spring 3 is made of copper sheet, and multiple conductive springs 3 are provided to ensure a stable power supply to the heating element 4. The high-temperature resistant spring 7 can be made of chromium-nickel-iron alloy or special stainless steel, etc.

[0026] The top of the first contact part 5 is provided with an upwardly protruding contact point 8, and the bottom of the heating component 4 is provided with a first contact surface 9. The contact point 8 is in contact with and fits the first contact surface 9. The contact point 8 reduces the effective contact area, increases the current density, and enhances the conductivity efficiency of the contact area.

[0027] The second contact part 6 comes into contact with the coupling seat assembly under the elastic force of the high-temperature spring 7, and together with the first contact part 5, which comes into contact with the heating component 4 under the elastic force of the high-temperature spring 7, thereby providing effective support for the conductive spring 3.

[0028] The bottom of the second contact part 6 is provided with a second contact surface 10, and the coupling seat assembly 1 (upper coupling seat 14) is provided with an upwardly protruding contact rib 11, and the second contact surface 10 and the contact rib 11 are in contact and fit together.

[0029] The conductive spring 3 is C-shaped, and the high-temperature resistant spring 7 is located on the opening of the C-shape of the conductive spring 3.

[0030] The second contact part 6 has a boss 12 at the top, and the lower end of the high-temperature resistant spring 7 is fitted onto the boss 12. One end of the first contact part 5 is bent downward to form a bent part 13, and the upper end of the high-temperature resistant spring 7 is fitted onto the bent part 13, thereby fixing the high-temperature resistant spring 7.

[0031] The upper end of the high-temperature resistant spring 7 abuts against the first contact portion 5, and the lower end of the high-temperature resistant spring 7 abuts against the second contact portion 6, thereby supporting the conductive spring 3.

[0032] The coupling seat assembly 1 includes an upper coupling seat 14 and a lower coupling seat 15. The upper coupling seat 14 is provided with a pin 16, and the lower coupling seat 15 is provided with a socket 17. The pin 16 and the socket 17 are plugged into each other to form a conductive contact.

[0033] The upper coupling seat 14 is provided with an upper coupling element 21, and the lower coupling seat 15 is provided with a lower coupling element 22. The upper coupling element 21 and the lower coupling element 22 are coupled to each other. The pins 16 are distributed on the upper coupling element 21, and the sockets 17 are distributed on the lower coupling element 22.

[0034] The second contact portion 6 is provided with a socket hole 18, and the upper end of the pin 16 is provided with a socket post 19. The conductive spring 3 is sleeved on the socket post 19 through the socket hole 18 to form a conductive contact.

[0035] The household appliance in this embodiment is a thick-film baking pan, which includes a heating plate 2 and a heating element 4 disposed at the bottom of the heating plate 2. The heating element 4 is a thick-film heating plate and is used to heat the heating plate 2.

[0036] The above describes the preferred embodiments of this utility model, illustrating and describing its basic principles, main features, and advantages. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made without departing from the spirit and scope of this utility model, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A high-temperature resistant coupler for a household appliance, comprising a coupling base assembly (1) and a conductive spring (3), wherein the conductive spring (3) is mounted on the coupling base assembly (1), the upper end of the conductive spring (3) is provided with a first contact portion (5) that contacts a heating element (4), and the lower end of the conductive spring (3) is provided with a second contact portion (6) that contacts the coupling base assembly (1), characterized in that: It also includes a high-temperature resistant spring (7), which is disposed between the first contact part (5) and the second contact part (6). The first contact part (5) is in contact with the heating component (4) under the elastic force of the high-temperature resistant spring (7).

2. The high temperature resistant coupler of the household electrical appliance according to claim 1, characterized in that: The top of the first contact part (5) is provided with an upward protruding contact point (8), and the bottom of the heating component (4) is provided with a first contact surface (9). The contact point (8) and the first contact surface (9) are in contact and fit together.

3. The high temperature resistant coupler of the household electrical appliance according to claim 2, characterized in that: The second contact part (6) is in contact with the coupling seat assembly (1) under the elastic force of the high temperature resistant spring (7).

4. The high temperature resistant coupler of the household electrical appliance according to claim 3, characterized in that: The bottom of the second contact part (6) is provided with a second contact surface (10), and the coupling seat assembly (1) is provided with an upward protruding contact rib (11). The second contact surface (10) and the contact rib (11) are in contact and fit together.

5. The high temperature resistant coupler of the household electrical appliance according to claim 1, characterized in that: The second contact part (6) has a boss (12) on top, and the lower end of the high temperature resistant spring (7) is fitted onto the boss (12).

6. The high temperature resistant coupler of the household electrical appliance according to claim 5, characterized in that: The first contact part (5) has a bent part (13) at one end, and the upper end of the high temperature resistant spring (7) is fitted onto the bent part (13).

7. The high temperature resistant coupler of the household appliance according to claim 1 characterized in that: The upper end of the high-temperature resistant spring (7) abuts against the first contact part (5), and the lower end of the high-temperature resistant spring (7) abuts against the second contact part (6).

8. The high temperature resistant coupler of the household electrical appliance according to claim 1, characterized in that: The coupling seat assembly (1) includes an upper coupling seat (14) and a lower coupling seat (15). The upper coupling seat (14) is provided with a pin (16), and the lower coupling seat (15) is provided with a socket (17). The pin (16) and the socket (17) are plugged into each other to form a conductive contact.

9. The high temperature resistant coupler of the household electrical appliance according to claim 8, characterized in that: The second contact part (6) is provided with a socket hole (18), and the upper end of the pin (16) is provided with a socket post (19). The conductive spring (3) is sleeved on the socket post (19) through the socket hole (18).

10. The high temperature resistant coupler of the household appliance according to claim 1 characterized in that: The conductive spring (3) is C-shaped, and the high-temperature resistant spring (7) is located on the opening of the C-shape of the conductive spring (3).

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