Wiring structure of large-current temperature limiter
By setting parallel and spaced mounting recesses and a ceramic pillar spring structure in the thermostat housing, the problem of lack of insulation between thermostat wiring assemblies is solved, thereby improving the insulation and safety of the wiring components.
Patent Information
- Application Number
- CN202422558329.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-22
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-10-22
AI Technical Summary
The current temperature limiter lacks insulation between the wiring groups, posing a safety hazard.
Multiple parallel and spaced mounting recesses are provided in the housing of the temperature limiter. Wiring assemblies are installed in these recesses. Insulation between the wiring assemblies is achieved by ceramic pillars and springs, and the power is cut off by the thermal deformation of the bimetallic strip.
Insulation between wiring components is achieved, improving safety and avoiding the risk of short circuits between wiring groups.
Smart Images
Figure CN223552458U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of temperature controllers, and in particular to a wiring structure for a high-current temperature limiter. Background Technology
[0002] A thermostat, also known as a temperature controller, is a series of automatic control elements that can produce certain special effects by undergoing physical deformation inside the switch according to changes in the temperature of the working environment, thereby generating a series of on or off actions. At present, thermostats on the market are commonly used in household appliances and equipment with heating functions. They usually have multiple wiring groups for use, but the lack of insulation between the wiring groups poses certain safety hazards.
[0003] Therefore, it is necessary to make further improvements. Utility Model Content
[0004] To solve the above problems, this utility model proposes a wiring structure for a high-current temperature limiter, wherein the wiring groups of the high-current temperature limiter are isolated from each other.
[0005] This utility model proposes a wiring structure for a high-current temperature limiter, which includes a reset rod, a bimetallic strip, and multiple sets of wiring assemblies disposed in a housing. Multiple mounting recesses are arranged side-by-side at intervals in the housing, each mounting recess for mounting a set of wiring assemblies. Each wiring assembly includes two terminals. The reset rod is provided with ceramic posts corresponding to the number of wiring assemblies. Each ceramic post is provided with a conductive part and a spring. The spring is sleeved on the ceramic post and is used to hold the conductive part, connecting and conducting the two terminals of the same set of wiring assemblies. The top of the reset rod has a manual reset end extending out of the top of the housing, and the bottom of the reset rod abuts against the bimetallic strip. The bottom of the housing has a heat-conducting part in contact with the bimetallic strip. The elastic force of the bimetallic strip is greater than the elastic force of the spring.
[0006] In one or more embodiments, the two terminals of the wiring assembly are respectively located on both sides of the mounting recess, and the housing has clearance openings on both sides corresponding to the mounting recess.
[0007] In one or more embodiments, the terminal block includes a terminal block and a fastening screw. The upper end of the terminal block is provided with a screw hole that mates with the fastening screw, and the top of the housing is provided with a clearance hole corresponding to the position of the fastening screw.
[0008] In one or more embodiments, the housing includes a bottom shell and a top cover, the plurality of mounting recesses are provided on the bottom shell, the top cover is connected and fixed to the bottom shell by screws, and the temperature-conducting part is fixed to the bottom shell.
[0009] In one or more embodiments, the bottom of the bottom shell is provided with a riveting position, and the heat-conducting part has a riveting part that is riveted and fixed to the riveting position.
[0010] In one or more embodiments, the terminal block is provided with contact bumps for contacting conductive parts.
[0011] The beneficial effects of this utility model are: multiple mounting recesses are arranged side by side at intervals in the outer shell of the temperature limiter, the mounting recesses are used to install wiring components, and the mounting recesses also serve to isolate and insulate the wiring components from each other. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of the temperature limiter according to an embodiment of the present invention;
[0013] Figure 2 This is a schematic diagram of the structure of the temperature-conducting part and the bottom shell after disassembly in an embodiment of this utility model;
[0014] Figure 3 This is a schematic diagram of the internal structure of the outer shell in an embodiment of this utility model. Detailed Implementation
[0015] To enhance understanding of this utility model, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. These embodiments are only used to explain the present utility model and do not constitute a limitation on the scope of protection of the present utility model.
[0016] Please refer to the appendix. Figure 1-3 This utility model provides a wiring structure for a high-current temperature limiter, which includes a reset rod 1, a bimetallic strip 2, and multiple sets of wiring assemblies disposed in the housing. Multiple mounting recesses 3 are arranged side by side at intervals in the housing, and each mounting recess is used to install a set of wiring assemblies. By installing the wiring assemblies in the mounting recesses, the insulation between the wiring assemblies is achieved by utilizing the structure of mutual isolation between the mounting recesses. The wiring assembly includes two terminals 4. The reset rod 1 is provided with ceramic posts 5 corresponding to the number of wiring assemblies. The ceramic posts are provided with conductive parts 6 and springs 7. The springs are sleeved on the ceramic posts and are used to hold the conductive parts to connect and conduct the two terminals of the same set of wiring assemblies. The top of the reset rod 1 has a manual reset end 101 extending out of the top of the housing, and the bottom 102 of the reset rod abuts against the bimetallic strip. The bottom of the housing has a heat-conducting part 8 in contact with the bimetallic strip. The elastic force of the bimetallic strip 2 is greater than the elastic force of the spring 7. In actual use, the heat-conducting part is in contact with the heating element. When the bimetallic strip receives too much heat from the heat-conducting part, the bimetallic strip deforms and bulges upward, pushing up the reset rod, causing the conductive part to detach from the two terminals, thereby achieving the function of cutting off the power supply.
[0017] The two terminals of the wiring assembly are respectively located on both sides of the mounting recess 3. The outer casing has clearance openings on both sides corresponding to the mounting recess. With this structure, the stripped wire end is directly inserted into the wiring terminal through the clearance opening for connection. Preferably, the wiring terminal includes a terminal block 9 and a fastening screw 10. The upper end of the terminal block has a screw hole that mates with the fastening screw. The top of the outer casing has clearance holes corresponding to the position of the fastening screw. The user can tighten the fastening screw to press the wire end connected to the terminal block.
[0018] The outer casing includes a bottom shell 11 and a front cover 12. Multiple mounting recesses are provided on the bottom shell 11. The front cover is connected and fixed to the bottom shell by screws. The temperature-conducting part 8 is fixed to the bottom shell. Using screws to fix the front cover and bottom shell facilitates the assembly of wiring components during production. A riveting position 13 is provided at the bottom of the bottom shell 11, and the temperature-conducting part 8 has a riveting part 15 that is riveted and fixed to the riveting position, avoiding the use of too many screws that could affect the internal structure of the outer casing.
[0019] The terminal block is provided with contact protrusions 16, which are used to contact the conductive part 6. The contact protrusions can ensure accurate contact of the conductive part and successful conduction of the terminal blocks at both ends.
[0020] The above description is only a preferred embodiment of the present utility model. The protection scope of the present utility model is not limited to the above embodiments. Any equivalent modifications or changes made by those skilled in the art based on the content disclosed in the present utility model should be included in the protection scope recorded in the claims.
Claims
1. A wiring structure for a high-current temperature limiter, characterized in that: The device includes a reset rod (1), a bimetallic strip (2), and multiple sets of wiring assemblies, all housed in the housing. Multiple mounting recesses (3) are arranged side by side in the housing. Each mounting recess is used to install a set of wiring assemblies. Each wiring assembly includes two terminals (4). The reset rod (1) is provided with ceramic posts (5) corresponding to the number of wiring assemblies. Each ceramic post is provided with a conductive part (6) and a spring (7). The spring is sleeved on the ceramic post and is used to hold the conductive part to connect and conduct the two terminals of the same set of wiring assemblies. The top of the reset rod (1) has a manual reset end (101) extending out of the top of the housing. The bottom (102) of the reset rod abuts against the bimetallic strip. The bottom of the housing has a heat-conducting part (8) in contact with the bimetallic strip. The elastic force of the bimetallic strip (2) is greater than that of the spring (7).
2. The wiring structure of a high-current temperature limiter according to claim 1, characterized in that: The two terminals of the wiring assembly are respectively located on both sides of the mounting recess (3), and the outer casing has clearance openings on both sides corresponding to the mounting recess.
3. The wiring structure of a high-current temperature limiter according to claim 2, characterized in that: The terminal block includes a terminal block (9) and a fastening screw (10). The upper end of the terminal block is provided with a screw hole that mates with the fastening screw. The top of the housing is provided with a clearance hole corresponding to the position of the fastening screw.
4. The wiring structure of a high-current temperature limiter according to claim 1, characterized in that: The outer shell includes a bottom shell (11) and a top cover (12). The plurality of mounting recesses are provided on the bottom shell (11). The top cover is connected and fixed to the bottom shell by screws. The temperature-conducting part (8) is fixed on the bottom shell.
5. The wiring structure of a high-current temperature limiter according to claim 4, characterized in that: The bottom of the bottom shell (11) is provided with a riveting position (13), and the heat-conducting part (8) has a riveting part (15) that is riveted and fixed to the riveting position.
6. The wiring structure of a high-current temperature limiter according to claim 1, characterized in that: The terminal block is provided with contact protrusions (16), which are used to contact the conductive part (6).