Electric ceramic cooker temperature controller contact piece structure and electric ceramic cooker temperature controller thereof

Abstract

The utility model discloses an electric ceramic cooker temperature controller contact piece structure and an electric ceramic cooker temperature controller thereof, belongs to the field of thermal switches, is used for a temperature controller, and is characterized in that a ceramic box body is internally provided with an elastic piece placing cavity with an opening, a large elastic piece, a waste heat static piece and a support base, and the support base is connected with the ceramic box body through a support fixing piece; a support limiting block is further arranged at the elastic piece containing cavity. One end of the large elastic piece is connected with the support base, the small elastic piece is arranged on the side, away from the support base, of the large elastic piece and matched with the waste heat static piece, the waste heat static piece is fixed to the static piece base, and the static piece base is connected with the ceramic box body through the static piece fixing piece. A static piece limiting block is arranged at the elastic piece containing cavity in the side, away from the static piece fixing piece, of the waste heat static piece. According to the electric ceramic cooker temperature controller, the phenomenon of creepage between the contact positions of the small elastic piece and the waste heat static piece can be avoided while the waste heat induction function is guaranteed, and the efficiency and accuracy of the assembly in the assembling process can be improved.

Description

Technical Field

[0001] This application belongs to the field of thermal switches, and more specifically, it relates to a contact structure for an electric ceramic stove thermostat and the electric ceramic stove thermostat thereof. Background Technology

[0002] A thermostat is a commonly used temperature control device, such as in the use of ceramic cooktops and induction cookers, where it can detect the heating temperature and residual temperature. See Chinese Patent Publication No. CN218160171U, which discloses a durable bimetallic thermostat for induction cookers, specifically disclosing the following technical details: It includes a ceramic block, a top plate, a spring-loaded tab, a movable rod, an elastic sheet, a first conductive plate, a second conductive plate, fixed contacts, and movable contacts. The top of the ceramic block has an upper groove, within which a spring-loaded tab, shaped like a spherical crown, is placed. A top plate is fixed to the top of the ceramic block, containing a heat-conducting plate located directly above the spring-loaded tab. The bottom of the ceramic block has a lower groove, and the upper and lower grooves are connected by a vertically arranged guide hole. The guide hole is coaxial with the elastic sheet, and a movable rod is inserted into the guide hole.

[0003] The applicant believes that in the aforementioned prior art thermostats, in order to realize the residual heat detection function, it is necessary to use a residual heat stationary plate and a small spring plate that acts as a residual heat moving plate. Both need to ensure a proper movement gap during the residual heat detection process. Therefore, extra care is required during installation, which will undoubtedly reduce the efficiency of thermostat assembly and will also cause arcing and creepage phenomena between the residual heat stationary plate and the small spring plate, affecting the safety of the thermostat. Summary of the Invention

[0004] The purpose of this application is to provide a contact structure for an electric ceramic stove thermostat and the electric ceramic stove thermostat thereof, which can ensure the residual heat sensing function of the electric ceramic stove thermostat while avoiding the phenomenon of electric creep between the contact point of the small spring and the residual heat stationary plate, and also helps to improve the efficiency and accuracy of the above components in the assembly process.

[0005] To achieve the above objectives, this application employs the following technical solution:

[0006] The contact structure of the electric ceramic stove thermostat described in this application includes a ceramic housing. A spring-loaded cavity with an opening is provided inside the ceramic housing. A large spring and a residual heat plate are disposed within the spring-loaded cavity. A support base is also provided within the spring-loaded cavity. The support base is connected to the ceramic housing via a support fixing member. A support limiting block is also provided at one side of the spring-loaded cavity of the support base. The support limiting block and the support fixing member are arranged on both sides of the support base. One end of the large spring is connected to the support base. A small spring is disposed on the side of the large spring away from the support base. The small spring cooperates with the residual heat plate, which is fixed to a plate base. The plate base is connected to the ceramic housing via a plate fixing member. A plate limiting block is also provided within the spring-loaded cavity. The plate limiting block and the plate fixing member are arranged on both sides of the residual heat plate.

[0007] As one of the preferred technical solutions, in this application, the large spring is connected to the support base as a whole through the bottom end of the large spring, and a small spring is provided at the free end of the large spring, extending in the direction of the bottom end of the large spring; one end of the small spring is fixed to the free end of the large spring, and the other end of the small spring is attached to the large spring in a separable manner; a spring through hole is opened on the large spring, and a connecting piece is integrally provided on the small spring, which passes through the spring through hole and is connected to the support.

[0008] As one of the preferred technical solutions, in this application, the waste heat stationary plate is provided with a stationary plate contact at the mating position with the small spring plate.

[0009] As one of the preferred technical solutions, in this application, the bracket has a bent portion, and multiple adjustment slots are machined on the bent portion. The bracket is connected to the connecting piece through the adjustment slots.

[0010] As one of the preferred technical solutions, in this application, the spring through hole is a rectangular through hole, and the width of the spring through hole is greater than the width of the bracket, allowing the free end of the bracket to pass through.

[0011] The ceramic cooker thermostat described in this application includes a contact structure for the ceramic cooker thermostat.

[0012] Compared with the prior art, the beneficial effects of this application are:

[0013] 1. This application effectively limits the residual heat plate and the bracket, which can ensure the bounce space of the free end of the small spring plate, thereby effectively controlling the residual heat detection function of the electric ceramic stove thermostat and effectively avoiding arcing and creepage between the two.

[0014] 2. This application improves the installation position and limiting structure of the large spring, small spring, and residual heat stationary plate to ensure that the gap between the small spring and the residual heat stationary plate is in a reasonable position, so as to realize the residual heat detection function and facilitate assembly and processing, thereby improving production efficiency and quality. Attached Figure Description

[0015] Figure 1 This is a front view of the contact structure of the electric ceramic stove temperature controller in this application.

[0016] Figure 2 The three-dimensional structure of the contact plate of the electric ceramic stove temperature controller in this application. Figure 1 .

[0017] Figure 3 yes Figure 2 A magnified view of part I in the middle.

[0018] Figure 4 This is a schematic diagram showing the relative positions and structure of the large spring, small spring, and residual heat stationary plate in this application. Figure 1 .

[0019] Figure 5 This is a schematic diagram showing the relative positions and structure of the large spring, small spring, and residual heat stationary plate in this application. Figure 2 .

[0020] In the diagram: 1. Ceramic box body; 2. Spring placement cavity; 3. Bracket; 4. Bracket base; 5. Bracket fixing component; 6. Bottom end of large spring; 7. Residual heat stationary plate; 8. Stationary plate contact point; 9. Stationary plate base; 10. Stationary plate fixing component; 11. Large spring; 12. Connecting piece; 13. Small spring; 14. Support limiting block; 15. Stationary plate limiting block; 16. Spring through hole; 17. Adjustment slot. Detailed Implementation

[0021] The technical solutions described in this application will be further described below with reference to the accompanying drawings and embodiments.

[0022] Example 1

[0023] See Figures 1 to 5 A contact structure for a ceramic cooker thermostat includes a bracket 3, a large spring 11, and a residual heat plate 7 placed within a spring placement cavity 2. The spring placement cavity 2 is located within a ceramic housing 1 and has an opening. The bracket 3 and a bracket base 4 are integrated, and the bracket base 4 is fixed to the ceramic housing 1 within the spring placement cavity 2 by a bracket fixing member 5.

[0024] The spring clip placement cavity 2 is also provided with a support limiting block 14, which is fixedly connected to the ceramic box body 1. The support limiting block 14 and the bracket fixing component 5 are arranged on both sides of the bracket base 4.

[0025] The large spring piece 11 has an integrally formed large spring piece bottom end 6 at its bottom, which is fixedly connected to the support base 4. The end of the large spring piece 11 away from the large spring piece bottom end 6 is a free end, and the free end of the large spring piece 11 is fixedly connected to one end of the small spring piece 13. The other end of the small spring piece 13 extends towards the direction of the large spring piece bottom end 6 but does not contact the large spring piece bottom end 6. The end of the small spring piece 13 extending towards the direction of the large spring piece bottom end 6 is the free end of the small spring piece 13. The free end of the small spring piece 13 and the large spring piece 11 are in a separable fit state in the initial state, and can contact the contact position of the residual heat stationary plate 7 during movement. The residual heat stationary plate 7 is fixedly connected to the stationary plate base 9, and the stationary plate base 9 is connected to the ceramic box 1 at the spring piece placement cavity 2 through the stationary plate fixing member 10. The spring piece placement cavity 2 is also provided with a stationary plate limiting block 15, which is fixedly connected to the ceramic box 1 at the spring piece placement cavity 2. The stationary plate limiting block 15 and the stationary plate fixing component 10 are arranged on both sides of the stationary plate base 9; the small spring plate 13 is also provided with a connecting piece 12, and the small spring plate 13 is connected to the bracket 3 through the connecting piece 12.

[0026] Example 2

[0027] See also Figures 1 to 5 A contact structure for a ceramic cooker thermostat is disclosed. A large spring contact 11 has a through-hole 16, which is a rectangular through-hole extending along the length of the large spring contact 11. The through-hole 16 allows the free end of a bracket 3 to pass through. The bracket 3 is bent at the end away from the bracket base 4 to form a free end. A connecting piece 12 of a small spring contact 13 passes through the through-hole 16 and connects to the bracket 3. A bending portion is formed at the bending position of the bracket 3, and the bending portion has several adjustment slots 17. By selecting a suitable adjustment slot 17 to engage with the end of the connecting piece 12, the bounce distance of the free end of the small spring contact 13 can be adjusted.

[0028] The structure and connections of the remaining parts are the same as those described in any of the foregoing embodiments, and will not be repeated here to avoid redundancy. Those skilled in the art can understand and apply the technical solutions described in this embodiment based on the foregoing embodiments.

[0029] Example 3

[0030] An electric ceramic stove temperature controller including the contact structure of the electric ceramic stove temperature controller described in Examples 1 and 2.

[0031] Based on the above embodiments, the following paragraphs will continue to describe in detail the technical features involved and the functions and roles of these technical features in this technical solution, so as to help those skilled in the art to fully understand the technical solution and reproduce it.

[0032] See Figures 1 to 5 In this application, a spring placement cavity 2 is provided inside the ceramic housing 1. The spring placement cavity 2 has an opening for the temperature sensor rod to extend into. The bottom of the temperature sensor rod contacts the free end of the large spring 11 inside the spring placement cavity 2, and the free end of the large spring 11 can move under the action of the temperature sensor rod. The temperature sensor rod described in this application is a linkage rod-like structure inside or outside the temperature sensor, usually made of metal material, and can directly contact the temperature-sensing medium (such as liquid, paraffin, etc.). After the temperature sensor senses the temperature, it can push the rod to move due to the thermal expansion and contraction of the temperature-sensing medium, thereby triggering the protective action of the relevant spring. It is usually used in temperature control devices.

[0033] In this application, the free end of the large spring 11 is connected to the temperature control rod, and the bottom end 6 of the large spring 11 is fixedly connected to the support base 4. The support base 4 is connected to the ceramic box 1 at the spring placement cavity 2 through the support fixing member 5. The spring placement cavity 2 is also provided with a support limiting block 14 for limiting the position of the support base 4. Under the joint action of the support limiting block 14 and the support fixing member 5, the position installation and attitude limitation of the support base 4 itself can be better realized, ensuring that the subsequent structure has better positioning in space, which helps to improve the efficiency and quality of assembly.

[0034] In this application, the large spring 11 has a spring through hole 16 between the bottom end 6 and the free end. The spring through hole 16 is a rectangular through hole, which allows the connecting piece 12 to pass through it on the one hand, and also avoids motion interference between the large spring 11 and the bracket 3 during the movement. That is, the width of the spring through hole 16 is greater than the width of the bracket 3 and the length allows the free end of the bracket 3 to pass through.

[0035] In this application, the bracket 3 is bent at its free end to form an L-shaped structure, and several adjustment slots 17 are formed at the bent part of the bracket 3. The adjustment slots 17 are engaged with the end of the connecting piece 12.

[0036] In this application, the connecting piece 12 is stamped onto the small spring piece 13. Therefore, one end of the connecting piece 12 is integral with the small spring piece 13, and the other end of the connecting piece 12 is connected to the adjustment slot 17 of the bent portion of the bracket 3. This structure allows the free end of the small spring piece 13 to separate from the large spring piece 11 during its bouncing motion due to the presence of the connecting piece 12, and also enables the free end of the small spring piece 13 to bounce itself. During the bouncing process, the free end of the small spring piece 13 will contact the residual heat stationary plate 7 or the stationary plate contact point 8 at the end of the residual heat stationary plate 7, thus realizing the residual heat detection function.

[0037] In this application, the residual heat retaining plate 7 is fixedly connected to the retaining plate base 9, or is integrally formed with the retaining plate base 9. The retaining plate base 9 is connected to the ceramic box 1 inside the spring plate placement cavity 2 via the retaining plate fixing member 10. The retaining plate base 9 is located inside the spring plate placement cavity 2.

[0038] A stationary plate limiting block 15 is provided in the spring plate placement cavity 2 on one side of the waste heat stationary plate 7. The stationary plate limiting block 15 is connected to the ceramic box body 1. The stationary plate limiting block 15 is located on the side of the waste heat stationary plate 7 away from the stationary plate base 9. Under the joint action of the stationary plate limiting block 15 and the stationary plate fixing member 10, it can be ensured that the waste heat stationary plate 7 does not rotate around the stationary plate fixing member 10 during the installation process, so as to better guarantee the installation position of the waste heat stationary plate 7, improve the installation efficiency, and thus also ensure that the free end of the waste heat stationary plate 7 or the stationary plate contact 8 at the free end makes better contact with the free end of the small spring plate 13.

[0039] In this application, after limiting the residual heat stationary plate 7, the bouncing space of the small spring plate 13 can be effectively controlled, thereby effectively controlling the residual heat detection function and avoiding arcing and creepage during the relative movement of the residual heat stationary plate 7 and the small spring plate 13.

[0040] Finally, although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A contact structure for a ceramic stove thermostat, comprising a ceramic housing (1), a spring placement cavity (2) provided inside the ceramic housing (1), the spring placement cavity (2) having an opening, and a large spring (11) and a residual heat retaining plate (7) provided inside the spring placement cavity (2), characterized in that: The spring placement cavity (2) is also provided with a support base (4), which is connected to the ceramic box (1) through a support fixing member (5). A support limiting block (14) is also provided at the spring placement cavity (2) on one side of the support base (4). The support limiting block (14) and the support fixing member (5) are arranged on both sides of the support base (4). One end of the large spring (11) is connected to the support base (4). A small spring (13) is provided on the side of the large spring (11) away from the support base (4). The small spring (13) cooperates with the residual heat static plate (7). The residual heat static plate (7) is fixed on the static plate base (9). The static plate base (9) is connected to the ceramic box (1) through the static plate fixing member (10). A static plate limiting block (15) is also provided in the spring placement cavity (2). The static plate limiting block (15) and the static plate fixing member (10) are arranged on both sides of the residual heat static plate (7).

2. The contact structure of an electric ceramic stove temperature controller according to claim 1, characterized in that: The large spring (11) is connected to the support base (4) as a whole through the bottom end (6) of the large spring (11). The free end of the large spring (11) is provided with a small spring (13) extending in the direction of the bottom end (6) of the large spring (11). One end of the small spring (13) is fixed to the free end of the large spring (11), and the other end of the small spring (13) is attached to the large spring (11) in a separable manner. The large spring (11) is provided with a spring through hole (16), and the small spring (13) is integrally provided with a connecting piece (12). The connecting piece (12) passes through the spring through hole (16) and is connected to the support (3).

3. The contact structure of an electric ceramic stove temperature controller according to claim 1 or 2, characterized in that: The residual heat plate (7) is provided with a plate contact (8) at the position where it engages with the small spring plate (13).

4. The contact structure of an electric ceramic stove temperature controller according to claim 2, characterized in that: The bracket (3) has a bent portion, and multiple adjustment slots (17) are machined on the bent portion. The bracket (3) is connected to the connecting piece (12) through the adjustment slots (17).

5. The contact structure of an electric ceramic stove temperature controller according to claim 2, characterized in that: The spring through hole (16) is a rectangular through hole, and the width of the spring through hole (16) is greater than the width of the bracket (3), allowing the free end of the bracket (3) to pass through.

6. A thermostat for an electric ceramic stove, characterized in that: The electric ceramic stove temperature controller contact structure includes any one of claims 1 to 5.

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