A thermal relay housing structure and a thermal relay

Abstract

This utility model discloses a thermal relay housing structure and a thermal relay, including a first housing and a second housing. The first and second housings are detachably connected via an X-axis snap-fit ​​connection structure, and a Y-axis limiting structure and a Z-axis limiting structure are also provided between the first and second housings. This utility model utilizes the X-axis snap-fit ​​connection structure between the first and second housings to achieve a detachable connection, while simultaneously using the cooperation of the X-axis snap-fit ​​connection structure, the Y-axis limiting structure, and the Z-axis limiting structure to achieve multi-directional limiting and fixation of the first and second housings in the X, Y, and Z axes. This effectively improves the assembly accuracy and stability between the first and second housings, ensuring that the internal parts of the thermal relay can be accurately and securely assembled into the thermal relay housing during assembly.

Description

Technical Field

[0001] This utility model relates to the field of thermal relay technology, specifically to a thermal relay housing structure and a thermal relay. Background Technology

[0002] The housing of existing thermal relays typically consists of a top cover and a base, which are detachably connected by a snap-fit ​​structure. However, the overall structure of existing thermal relay housings is relatively simple. After the top cover and base are assembled together, they are prone to misalignment and inaccurate assembly due to the precision issues of the snap-fit ​​structure. Furthermore, the top cover and base contain numerous positioning slots and clearance slots corresponding to the internal parts of the thermal relay. If the top cover and base cannot be precisely aligned, the internal parts of the thermal relay may not be accurately positioned with the corresponding positioning slots and clearance slots. This prevents the internal components of the thermal relay from being quickly and accurately assembled into the housing during the assembly process, affecting the assembly quality and speed. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a thermal relay housing structure, which mainly solves the technical problem that existing thermal relay housing structures cannot be accurately radially aligned and assembled.

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution: A thermal relay housing structure includes a first housing and a second housing, which are configured to be detachably connected by an X-axis snap-fit ​​connection structure, and a Y-axis limiting structure and a Z-axis limiting structure are also provided between the first housing and the second housing.

[0005] Furthermore, the Y-axis limiting structure is an inner and outer sleeve limiting structure.

[0006] Furthermore, the Y-axis limiting structure includes an outer sleeve edge on the first housing and an inner sleeve edge on the second housing. The outer sleeve edge and the inner sleeve edge are offset from each other and are tightly fitted together after the first housing and the second housing are assembled. The outer sleeve edge and the inner sleeve edge fit together to guide the assembly between the first housing and the second housing and limit the Y-axis direction.

[0007] Furthermore, an outer sleeve is provided on both sides of the first housing, and an inner sleeve is provided on both sides of the second housing to cooperate with the corresponding outer sleeve.

[0008] Furthermore, the Z-axis limiting structure is a concave-convex fitting limiting structure.

[0009] Furthermore, the Z-axis limiting structure includes a limiting groove on the first housing and a limiting protrusion on the second housing corresponding to the limiting groove. The limiting protrusion and the limiting groove engage to limit the assembly between the first housing and the second housing in the Z-axis direction.

[0010] Furthermore, limiting grooves are provided on both sides of the first housing, and limiting protrusions that cooperate with the corresponding limiting grooves are provided on both sides of the second housing.

[0011] Furthermore, a snap-fit ​​groove is provided on both sides of the first housing, and a snap-fit ​​head is provided on both sides of the second housing to cooperate with the corresponding snap-fit ​​groove. The snap-fit ​​cooperation between the snap-fit ​​head and the snap-fit ​​groove allows the first housing and the second housing to be detachably connected along the X-axis.

[0012] Furthermore, a number of bosses are provided on the assembly surface of the first housing, and a number of abutment mating parts corresponding to each boss are provided on the assembly surface of the second housing. When the first housing and the second housing are assembled in place, each boss and each corresponding abutment mating part engage to form multiple point contact abutment structures at the assembly surface of the first housing and the second housing.

[0013] Based on the same inventive concept, this utility model also provides a thermal relay, including the thermal relay housing structure described above.

[0014] The above technical solution has the following advantages or beneficial effects:

[0015] In the thermal relay housing structure and thermal relay described in this utility model, the first housing and the second housing are detachably connected by an X-axis snap-fit ​​connection structure. At the same time, the first housing and the second housing are fixed in multiple directions (X-axis, Y-axis, and Z-axis) by the cooperation of the X-axis snap-fit ​​connection structure, the Y-axis limiting structure, and the Z-axis limiting structure. This effectively improves the assembly accuracy and stability between the first housing and the second housing, ensuring that the internal parts of the thermal relay can be accurately and stably assembled into the thermal relay housing during the assembly process. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the thermal relay according to an embodiment of the present invention.

[0017] Figure 2 This is a three-dimensional structural diagram of the thermal relay according to another embodiment of the present invention.

[0018] Figure 3 This is a three-dimensional structural diagram of the first housing according to an embodiment of the present utility model.

[0019] Figure 4 This is a three-dimensional structural diagram of the second housing according to an embodiment of the present invention.

[0020] Figure 5 This is a schematic diagram of the structure of the inner sleeve and the buckle head on the second shell of this utility model embodiment.

[0021] Figure 6 This is a schematic diagram of the structure of the boss on the first housing in an embodiment of the present invention.

[0022] Figure 7 This is a schematic diagram of the abutting mating part on the second shell of this utility model embodiment.

[0023] Label Explanation:

[0024] 1. First housing; 2. Second housing; 11. Outer inlay; 12. Limiting groove; 13. Snap-on groove; 14. Boss; 21. Inner inlay; 22. Limiting protrusion; 23. Snap-on head; 24. Abutting mating part. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0026] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] Please refer to the appendix. Figure 1 To be continued Figure 7 One embodiment of this utility model provides a thermal relay housing structure, including a first housing 1 and a second housing 2. The first housing 1 and the second housing 2 are configured to be detachably connected via an X-axis snap-fit ​​connection structure, and a Y-axis limiting structure and a Z-axis limiting structure are also provided between the first housing 1 and the second housing 2. It can be understood that in this embodiment, while utilizing the X-axis snap-fit ​​connection structure between the first housing 1 and the second housing 2 to achieve a detachable connection, the X-axis snap-fit ​​connection structure, the Y-axis limiting structure, and the Z-axis limiting structure work together to achieve multi-directional limiting and fixing of the first housing 1 and the second housing 2 in the X, Y, and Z axes. This effectively improves the assembly accuracy and stability between the first housing 1 and the second housing 2, ensuring that the internal parts of the thermal relay can be accurately and securely assembled into the thermal relay housing during the assembly process.

[0028] Please refer to the appendix. Figure 3 To be continued Figure 5 In one preferred embodiment, the Y-axis limiting structure is an inner and outer sleeve limiting structure. Further, the Y-axis limiting structure includes an outer sleeve edge 11 on the first housing 1 and an inner sleeve edge 21 on the second housing 2. The outer sleeve edge 11 and the inner sleeve edge 21 are offset from each other and are tightly fitted together after the first housing 1 and the second housing 2 are assembled. The inner and outer sleeve edge 11 and the inner sleeve edge 21 engage to guide the assembly between the first housing 1 and the second housing 2 and to limit the Y-axis direction. Specifically, in this embodiment, outer sleeve edges 11 are provided on both sides of the first housing 1, and inner sleeve edges 21 that cooperate with the corresponding outer sleeve edges 11 are provided on both sides of the second housing 2. In this embodiment, when the first housing 1 and the second housing 2 are assembled along the X-axis, the cooperation between the outer sleeve 11 and the inner sleeve 21 can play a guiding role in the X-axis direction. At the same time, after the first housing 1 and the second housing 2 are assembled in place, they can also play a limiting role in the Y-axis direction, which helps to improve the assembly smoothness of the first housing 1 and the second housing 2 and improve assembly efficiency.

[0029] Please refer to the appendix. Figure 2 Appendix Figure 3 In one preferred embodiment, the Z-axis limiting structure is a concave-convex fitting limiting structure. Further, the Z-axis limiting structure includes a limiting groove 12 disposed on the first housing 1, and a limiting protrusion 22 corresponding to the limiting groove 12 disposed on the second housing 2. The limiting protrusion 22 engages with the limiting groove 12 to limit the assembly of the first housing 1 and the second housing 2 in the Z-axis direction. Specifically, in this embodiment, limiting grooves 12 are disposed on both sides of the first housing 1, and limiting protrusions 22 that engage with the corresponding limiting grooves 12 are disposed on both sides of the second housing 2. In this embodiment, the engaging and limiting fit between the limiting protrusion 22 and the limiting groove 12 ensures that the first housing 1 and the second housing 2 are positioned in the correct position, thereby limiting the assembly of the first housing 1 and the second housing 2 in the Z-axis direction. This effectively increases the alignment accuracy of the first housing 1 and the second housing 2, thereby improving the assembly accuracy and stability between them.

[0030] Please refer to the appendix. Figure 3 To be continued Figure 5 In one preferred embodiment, a snap-fit ​​groove 13 is provided on both sides of the first housing 1, and a snap-fit ​​head 23 that cooperates with the corresponding snap-fit ​​groove 13 is provided on both sides of the second housing 2. The snap-fit ​​cooperation between the snap-fit ​​head 23 and the snap-fit ​​groove 13 enables the first housing 1 and the second housing 2 to be detachably connected along the X-axis direction.

[0031] Please refer to the appendix. Figure 6 Appendix Figure 7 In one preferred embodiment, a plurality of bosses 14 are provided on the assembly surface of the first housing 1, and a plurality of abutment mating parts 24 corresponding to each boss 14 are provided on the assembly surface of the second housing 2. When the first housing 1 and the second housing 2 are assembled in place, each boss 14 abuts against each corresponding abutment mating part 24, forming multiple point contact abutment structures at the assembly surface of the first housing 1 and the second housing 2. In this embodiment, by abutting against each boss 14 against each corresponding abutment mating part 24, the assembly surface of the first housing 1 and the second housing 2 is optimized from a long surface fit to a local point fit. The long surface fit structure is prone to insufficient precision in the fit between surfaces due to the machining accuracy problem between the two housings (long surface deformation). Compared with the existing long surface fit method, the point fit structure is beneficial to improve the fit accuracy and is less prone to deformation.

[0032] Please refer to the appendix. Figure 1 To be continued Figure 7 An embodiment of this utility model also provides a thermal relay (thermal overload relay), including the thermal relay housing structure described above, wherein the first housing 1 is one of the upper cover and the base of the thermal relay, and the second housing is the other of the upper cover and the base of the thermal relay.

[0033] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model. Therefore, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

Claims

1. A thermal relay housing structure, characterized in that: It includes a first housing (1) and a second housing (2), which are configured to be detachably connected by an X-axis snap-fit ​​connection structure, and a Y-axis limiting structure and a Z-axis limiting structure are also provided between the first housing (1) and the second housing (2).

2. The thermal relay housing structure according to claim 1, characterized in that: The Y-axis limiting structure is an inner and outer sleeve limiting structure.

3. The thermal relay housing structure according to claim 2, characterized in that: The Y-axis limiting structure includes an outer sleeve edge (11) on the first housing (1) and an inner sleeve edge (21) on the second housing (2). The outer sleeve edge (11) and the inner sleeve edge (21) are staggered and correspondingly arranged, and are tightly fitted together after the first housing (1) and the second housing (2) are assembled. The outer sleeve edge (11) and the inner sleeve edge (21) fit together to guide the assembly between the first housing (1) and the second housing (2) and limit the Y-axis direction.

4. The thermal relay housing structure according to claim 3, characterized in that: An outer sleeve (11) is provided on both sides of the first housing (1), and an inner sleeve (21) is provided on both sides of the second housing (2) to cooperate with the corresponding outer sleeve (11).

5. The thermal relay housing structure according to claim 1, characterized in that: The Z-axis limiting structure is a concave-convex fitting limiting structure.

6. The thermal relay housing structure according to claim 5, characterized in that: The Z-axis limiting structure includes a limiting groove (12) provided on the first housing (1) and a limiting protrusion (22) corresponding to the limiting groove (12) provided on the second housing (2). The limiting protrusion (22) and the limiting groove (12) engage to limit the assembly between the first housing (1) and the second housing (2) in the Z-axis direction.

7. The thermal relay housing structure according to claim 6, characterized in that: Limiting grooves (12) are provided on both sides of the first housing (1), and limiting protrusions (22) that cooperate with the corresponding limiting grooves (12) are provided on both sides of the second housing (2).

8. The thermal relay housing structure according to claim 1, characterized in that: A snap-fit ​​groove (13) is provided on both sides of the first housing (1), and a snap-fit ​​head (23) that cooperates with the corresponding snap-fit ​​groove (13) is provided on both sides of the second housing (2). The snap-fit ​​of the snap-fit ​​head (23) and the snap-fit ​​groove (13) enables the first housing (1) and the second housing (2) to be detachably connected along the X-axis.

9. The thermal relay housing structure according to any one of claims 1 to 8, characterized in that: A plurality of bosses (14) are provided on the assembly surface of the first housing (1), and a plurality of abutting parts (24) corresponding to each boss (14) are provided on the assembly surface of the second housing (2). When the first housing (1) and the second housing (2) are assembled in place, each boss (14) abuts and engages with each corresponding abutting part (24), so that multiple point contact abutting structures are formed at the assembly surface of the first housing (1) and the second housing (2).

10. A thermal relay, characterized in that: Includes the thermal relay housing structure as described in any one of claims 1 to 9.

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