Housing assembly and relay

By setting adhesive grooves and partition grooves between the base and the housing, the problem of base deformation during traditional relay assembly is solved, improving assembly accuracy and electrical performance, and ensuring the structural reliability of the relay.

WO2026153314A1PCT designated stage Publication Date: 2026-07-23XIAMEN HONGFA ELECTRIC POWER CONTROLS CO LTD
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Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
XIAMEN HONGFA ELECTRIC POWER CONTROLS CO LTD
Filing Date
2026-01-13
Publication Date
2026-07-23

AI Technical Summary

Technical Problem

Traditional relays are prone to base deformation during the assembly process between the housing and the base, which affects the assembly accuracy of components and the electrical performance of the relay.

Method used

A dispensing groove is provided between the base and the outer shell, and a partition groove is provided inside the dispensing groove to absorb the shrinkage and tensile force during the baking and curing of the plastic sealant and prevent the base from deforming.

Benefits of technology

It improves the assembly precision and electrical performance of the housing components, reduces the risk of deformation of the housing and base, and enhances the overall structural reliability of the relay.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present application relates to a housing assembly (20) and a relay (10). The housing assembly (20) comprises a base (21) and a housing (22). The housing (22) covers the base (21), and an adhesive dispensing groove (2221) is formed between the housing (22) and the base (21). The base (21) is provided with a first isolation groove (2121), and the first isolation groove (2121) is located on the inner side of the adhesive dispensing groove (2221).
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Description

Housing assembly and relay

[0001] Related applications

[0002] This application claims priority to Chinese patent application filed on January 15, 2025, with application number 202510063803X and entitled “Housing Assembly and Relay”, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application relates to the field of relay technology, and in particular to a housing assembly and a relay. Background Technology

[0004] A relay's housing assembly typically includes a base and a casing. The main contact assembly, auxiliary contact assembly, electromagnetic assembly, armature, and other components are usually housed on the base. The electromagnetic assembly uses electromagnetic force to move the armature relative to the base, causing the driving spring in the main contact assembly to contact or separate from the stationary spring, and the auxiliary driving spring in the auxiliary contact assembly to contact or separate from the stationary spring, thus controlling the circuit's on / off state. The casing covers the base to protect the components on it. In traditional relays, the assembly process between the casing and the base can easily lead to base deformation, affecting the assembly accuracy of the components and impacting the relay's electrical performance. Summary of the Invention

[0005] According to various embodiments of this application, a housing assembly and a relay are provided.

[0006] A housing assembly includes a base and a housing, the housing being disposed on the base and forming a dispensing groove between the housing and the base; the base is provided with a first partition groove, the first partition groove being located inside the dispensing groove.

[0007] In one embodiment, the base includes a main body and a peripheral portion, the peripheral portion being disposed around and connected to the main body in a circumferential direction, the adhesive groove being formed between the peripheral portion and the outer shell, and the first partition groove being disposed on the peripheral portion.

[0008] In one embodiment, the base has a first side and a second side disposed opposite to each other, the housing includes a side plate portion and a cover plate portion, the side plate portion is disposed around the base, the cover plate portion is located on the first side of the base and connected to the side plate portion, the adhesive dispensing groove is formed between the peripheral portion and the side plate portion and is located on the second side of the base, and the first partition groove and the adhesive dispensing groove are sequentially spaced apart in the direction from the peripheral portion to the side plate portion.

[0009] In one embodiment, the first partition groove is formed on the surface of the periphery facing the first side or facing the second side.

[0010] In one embodiment, when the first partition groove faces the second side, the depth of the first partition groove is greater than the depth of the dispensing groove; and / or,

[0011] When the first partition groove faces the second side, at least a portion of the first partition groove corresponds to the dispensing groove in the depth direction.

[0012] In one embodiment, the base is provided with two first partition grooves, which are respectively formed on the peripheral surface facing the first side and facing the second side.

[0013] In one embodiment, the depth of the first partition groove facing the second side is greater than the depth of the first partition groove facing the first side.

[0014] In one embodiment, the side panel portion has a second partition groove facing the second side, and the first partition groove, the glue dispensing groove, and the second partition groove are arranged sequentially at intervals in the direction from the peripheral portion to the side panel portion.

[0015] In one embodiment, the depth of the second partition groove is greater than the depth of the dispensing groove;

[0016] And / or, in the depth direction of the second partition groove, at least a portion of the second partition groove corresponds to the position of the dispensing groove.

[0017] In one embodiment, the second partition groove includes a multi-segment groove structure, wherein the multi-segment groove structure is sequentially spaced apart in the circumferential direction of the base; or,

[0018] The second partition groove is arranged around the base and connected end to end.

[0019] In one embodiment, the first partition groove includes a multi-segment groove structure, wherein the multi-segment groove structure is sequentially spaced apart in the circumferential direction of the main body; or...

[0020] The first partition groove is arranged around the main body and is connected end to end.

[0021] A relay comprising a housing assembly as described in any of the above embodiments.

[0022] In one embodiment, the relay further includes a main contact assembly and an auxiliary contact assembly. The main contact assembly includes a main spring portion and a main stationary spring portion disposed on the base and movable relative to or away from each other. The auxiliary contact assembly includes an auxiliary moving spring portion and an auxiliary stationary spring portion disposed on the base and movable relative to or away from each other. At least a portion of the first partition groove is located between the main contact assembly and the dispensing groove, and at least a portion of the first partition groove is located between the auxiliary contact assembly and the dispensing groove.

[0023] In one embodiment, the first partition groove includes a multi-segment groove structure, wherein at least one segment of the groove structure is located between the main contact assembly and the dispensing groove, and at least another segment of the groove structure is located between the auxiliary contact assembly and the dispensing groove.

[0024] Details of one or more embodiments of the present invention are set forth in the following drawings and description. Other features, objects, and advantages of the invention will become apparent from the specification, drawings, and claims. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the disclosed drawings without creative effort.

[0026] Figure 1 is a schematic diagram of the relay structure in some embodiments.

[0027] Figure 2 is a schematic diagram of the relay structure after omitting the housing in some embodiments.

[0028] Figure 3 is a schematic diagram of the relay from another angle in some embodiments.

[0029] Figure 4 is a cross-sectional view of the relay shown in Figure 3 along the AA direction.

[0030] Figure 5 is a schematic diagram of the base structure in some embodiments.

[0031] Figure 6 is a schematic diagram of the outer casing in some embodiments.

[0032] Figure 7 is a partially enlarged schematic diagram of the relay shown in Figure 1 within the circular frame area.

[0033] Figure 8 is a partially enlarged schematic diagram of the relay shown in Figure 4 within the circular frame area. Detailed Implementation

[0034] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0035] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application.

[0036] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0037] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0038] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0039] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0040] In traditional relays, components such as the main contact assembly's active and stationary springs, and the auxiliary contact assembly's auxiliary moving and stationary springs, are typically mounted on a base, with a housing covering the base to protect the components. During relay assembly, the base and housing are usually bonded together with a molding compound. However, during the curing process of the molding compound, it shrinks, potentially creating tensile forces on the base and causing deformation. This deformation affects the assembly accuracy of the components on the base, the precision of the fit between components, and the accuracy of the connection between components and external circuits, ultimately impacting the relay's electrical performance.

[0041] To address the aforementioned problems, this application provides a housing assembly and a relay.

[0042] Please refer to Figures 1-4. Figures 1 and 3 are schematic diagrams of the relay 10 at different angles in some embodiments. Figure 2 is a schematic diagram of the relay 10 without the housing 22 in some embodiments. Figure 4 is a cross-sectional view of the relay 10 shown in Figure 3 along the AA direction. The relay 10 provided in this application can be used to connect to one or more external circuits and to control the on / off state of one or more external circuits. In some embodiments, the relay 10 includes an electromagnetic component 11, a main contact component 12, an auxiliary contact component 13, an armature 14, and a housing component 20. The housing component 20 includes a base 21 and a housing 22. The electromagnetic component 11, the main contact component 12, the auxiliary contact component 13, and the armature 14 are all disposed on the base 21. The housing 22 covers the base 21 to provide protection for the components on the base 21.

[0043] The electromagnetic assembly 11 may include a coil frame 111, a coil 112 sleeved on the coil frame 111, and an iron core 113 disposed in the coil 112. The main contact assembly 12 may include an active spring portion 121 and a main stationary spring portion 122 disposed on the base 21. The auxiliary contact assembly 13 may include an auxiliary moving spring portion 131 and an auxiliary stationary spring portion 132 disposed on the base 21. When the coil 112 is energized or the direction of the current in the coil 112 changes, the armature 14 can move relative to the base 21 by means of electromagnetic force. This allows the armature 14 to drive the active spring portion 121 to move closer to or away from the main stationary spring portion 122 by pushing the card or any other suitable transmission element, so that the active contact on the active spring portion 121 contacts or separates from the main stationary contact on the main stationary spring portion 122. The movement of the armature 14 relative to the base 21 can also drive the auxiliary moving spring portion 131 to move closer to or away from the auxiliary stationary spring portion 132 by the transmission structure provided on the armature 14 or any other suitable transmission element, so that the auxiliary moving contact on the auxiliary moving spring portion 131 contacts or separates from the auxiliary stationary contact on the auxiliary stationary spring portion 132.

[0044] Referring to Figures 5 and 6, in some embodiments, the base 21 includes a first side 213 and a second side 214 facing away from each other. Components such as the main contact assembly 12, auxiliary contact assembly 13, electromagnetic assembly 11, and armature 14 are disposed on the first side 213 of the base 21. The housing 22 includes a side plate portion 222 and a cover plate portion 221. The side plate portion 222 is disposed around the base 21, and the cover plate portion 221 is located on the first side 213 of the base 21 and connected to the side plate portion 222 to form an accommodating space for accommodating the components on the base 21. The side plate portion 222 and the cover plate portion 221 can be an integral structure. The active spring portion 121, the main stationary spring portion 122, the auxiliary active spring portion 131, and the auxiliary stationary spring portion 132 can partially pass through the base 21 and extend to the second side 214 of the base 21 for communication with an external circuit. The coil 112 can also be connected to an external circuit through a pin passing through the base 21 on the second side 214. It should be noted that the naming of the base 21 in this application does not imply a limitation on the structure and location of the base 21. In the relay 10, the location of the base 21 is not limited, and the base 21 may include, but is not limited to, a base structure, an upper shell structure, or an outer shell structure.

[0045] Furthermore, referring to Figures 7 and 8, in some embodiments, a dispensing groove 2221 is formed between the side plate portion 222 of the outer shell 22 and the base 21. During the assembly of the outer shell 22 and the base 21, any suitable adhesive, such as a plastic sealant, can be applied to the dispensing groove 2221 to bond the outer shell 22 and the base 21 together. The base 21 is provided with a first partition groove 2121, which is located inside the dispensing groove 2221. The materials of the outer shell 22 and the base 21 involved in this application include, but are not limited to, any suitable material such as plastic.

[0046] The aforementioned housing assembly 20 has a base 21 with a first partition groove 2121 located inside the dispensing groove 2221. During the assembly process of the outer shell 22 and the base 21, when encapsulant is applied to the dispensing groove 2221 to bond the outer shell 22 and the base 21, the encapsulant shrinks during the baking and curing process, generating a shrinkage pulling force on the base 21. The first partition groove 2121 allows the portion of the base 21 located outside the first partition groove 2121 to absorb the shrinkage pulling force generated by the encapsulant through flexible deformation, preventing the shrinkage pulling force from being transmitted to the inner side of the first partition groove 2121 and causing deformation of the portion of the base 21 located inside the first partition groove 2121, which would affect the assembly accuracy of the components on the base 21. Therefore, by providing the first partition groove 2121, the aforementioned housing assembly 20 prevents the base 21 from deforming during the dispensing and assembly process with the outer shell 22, which is beneficial to improving the electrical performance of the assembled housing assembly 20.

[0047] Referring to Figures 4 and 8, in some embodiments, the base 21 includes a main body 211 and a peripheral portion 212. The peripheral portion 212 is disposed around and connected to the main body 211 in the circumferential direction. The components of the relay 10 are disposed on the main body 211. The side plate portion 222 is disposed around the peripheral portion 212. A dispensing groove 2221 is formed between the peripheral portion 212 and the side plate portion 222. A first partition groove 2121 is disposed on the peripheral portion 212. The dispensing groove 2221 may be disposed facing the second side 214. That is, the dispensing groove 2221 is located on the second side 214 of the base 21 to facilitate dispensing of adhesive in the dispensing groove 2221 after the base 21 and the housing 22 are assembled. For example, the outer periphery of the peripheral portion 212 may be provided with a notch. When the housing 22 is assembled with the base 21, the notch of the peripheral portion 212 forms the dispensing groove 2221. In the direction from the peripheral portion 212 to the side plate portion 222, the first partition groove 2121 and the glue dispensing groove 2221 are arranged alternately in sequence so that the first partition groove 2121 can prevent the shrinkage and pulling force generated by the plastic sealant from being transmitted to the main body portion 211.

[0048] In some embodiments, the first partition groove 2121 is formed on the surface of the peripheral portion 212 facing the second side 214, that is, the first partition groove 2121 faces the second side 214. In this embodiment, the depth of the first partition groove 2121 is greater than the depth of the dispensing groove 2221. In the depth direction of the first partition groove 2121, at least a portion of the position of the first partition groove 2121 corresponds to the dispensing groove 2221. That is, the dispensing groove 2221 is located within the depth range of the first partition groove 2121 in the depth direction of the first partition groove 2121, so that the first partition groove 2121 can effectively block the shrinkage and pulling force generated by the encapsulating adhesive located in the dispensing groove 2221 from being transmitted to the main body portion 211. In this application, the depth directions of both the first partition groove 2121 and the dispensing groove 2221 are parallel to the direction from the first side 213 to the second side 214.

[0049] In other embodiments, the first partition groove 2121 may also be formed on the surface of the peripheral portion 212 facing the first side 213, that is, the first partition groove 2121 faces the first side 213. In this embodiment, the first partition groove 2121 and the dispensing groove 2221 may be staggered in the depth direction, or they may partially correspond in the depth direction. Providing the first partition groove 2121 on the surface of the peripheral portion 212 facing the first side 213, i.e., inside the housing assembly 20, allows the flexible deformation of the portion of the peripheral portion 212 located outside the first partition groove 2121 to absorb the shrinkage and tensile force generated by the encapsulating adhesive, preventing deformation of the main body 211 due to shrinkage and tensile force, which could affect the assembly accuracy of components mounted on the main body 211. Simultaneously, the first partition groove 2121 is not exposed outside the relay 10, which helps improve the appearance integrity of the relay 10.

[0050] Of course, in some embodiments, the base 21 may also be provided with two first partition grooves 2121. The two first partition grooves 2121 are respectively opened on the surfaces of the peripheral portion 212 facing the first side 213 and facing the second side 214. The arrangement of the two first partition grooves 2121 is not likely to affect the structural strength of the peripheral portion 212, and is also conducive to fully absorbing the shrinkage and tensile force generated by the plastic sealant, reducing the risk of deformation of the main body 211. In this embodiment, the depth of the first partition groove 2121 facing the second side 214 can be greater than the depth of the first partition groove 2121 facing the first side 213, and the depth of the first partition groove 2121 facing the second side 214 can be greater than the depth of the dispensing groove 2221, so that the first partition groove 2121 facing the second side 214 can fully absorb the shrinkage and tensile force generated by the plastic sealant, and the arrangement of the first partition groove 2121 facing the first side 213 effectively avoids the deformation of the main body 211.

[0051] In some embodiments, the side panel portion 222 has a second partition groove 2222 facing the second side 214. In the direction from the peripheral portion 212 to the side panel portion 222, the first partition groove 2121, the adhesive dispensing groove 2221, and the second partition groove 2222 are sequentially spaced apart. It is understood that the shrinkage and tensile force generated by the encapsulating adhesive can also cause deformation of the outer shell 22. The second partition groove 2222 allows the portion of the side panel portion 222 located inside the second partition groove 2222 to absorb the shrinkage and tensile force generated by the encapsulating adhesive through flexible deformation, which helps reduce the risk of deformation of the outer shell 22 and improves the assembly accuracy and structural reliability of the outer shell 22 and the base 21. In this embodiment, the depth of the second partition groove 2222 may also be greater than the depth of the adhesive dispensing groove 2221. In the depth direction of the second partition groove 2222, at least a portion of the second partition groove 2222 corresponds to the position of the adhesive dispensing groove 2221, so that the second partition groove 2222 can more fully absorb the shrinkage and tensile force generated by the encapsulating adhesive.

[0052] In this application, the shapes of the first partition groove 2121, the second partition groove 2222 and the dispensing groove 2221 are not limited, including but not limited to groove structures of any applicable shape such as U-shaped groove and V-shaped groove. When the base 21 is provided with two first partition grooves 2121, the shapes of the two first partition grooves 2121 can be the same or different, as long as they can absorb the shrinkage and pulling force generated by the plastic sealant.

[0053] Referring again to Figures 1 and 3, in some embodiments, the first partition groove 2121 is arranged around the main body 211 and connected end to end, and the second partition groove 2222 is arranged around the base 21 and connected end to end. In this configuration, the first partition groove 2121 and the second partition groove 2222 can be rectangular grooves adapted to the shapes of the base 21 and the outer shell 22. With this arrangement, when the dispensing groove 2221 is arranged around the base 21 and connected end to end, the first partition groove 2121 and the second partition groove 2222 can fully absorb the shrinkage and tensile force generated by the encapsulating adhesive at various locations in the circumferential direction of the base 21, effectively reducing the risk of deformation of the base 21 and the outer shell 22.

[0054] Of course, in other embodiments, the first partition groove 2121 may also include a multi-segment groove structure, with the multi-segment groove structure of the first partition groove 2121 arranged sequentially at intervals in the circumferential direction of the main body 211. The second partition groove 2222 may also include a multi-segment groove structure, with the multi-segment groove structure of the second partition groove 2222 arranged sequentially at intervals in the circumferential direction of the base 21. The number, size, and distribution of the groove structures in the first partition groove 2121 and the second partition groove 2222 can be set according to the anti-deformation requirements of the base 21 and the outer shell 22, and are not limited in this application.

[0055] Furthermore, in some embodiments, at least a portion of the first partition groove 2121 is located between the main contact assembly 12 and the dispensing groove 2221, and at least a portion of the first partition groove 2121 is located between the auxiliary contact assembly 13 and the dispensing groove 2221. Thus, the first partition groove 2121 can effectively prevent deformation of the portions of the base 21 where the main contact assembly 12 and the auxiliary contact assembly 13 are located, thereby helping to ensure the assembly accuracy of the main contact assembly 12 and the auxiliary contact assembly 13 on the base 21. Of course, when the base 21 also has other pins or components requiring high assembly accuracy, at least a portion of the first partition groove 2121 can also be located between these pins or components and the dispensing groove 2221 to ensure the assembly accuracy of the pins and components on the base 21.

[0056] It is understandable that when the first partition groove 2121 surrounds the main body 211 and is connected end to end, all components on the base 21 are located within the first partition groove 2121. The first partition groove 2121 can effectively prevent deformation of the base 21 and improve the assembly accuracy of each component. In other embodiments, the first partition groove 2121 may also include a multi-segment groove structure. The multi-segment groove structure of the first partition groove 2121 is located between the main contact assembly 12 and the dispensing groove 2221, between the auxiliary contact assembly 13 and the dispensing groove 2221, and between other pins or components and the dispensing groove 2221. As long as the risk of deformation of the parts of the base 21 where components are located can be reduced and the assembly accuracy of each component on the base 21 can be improved, it is acceptable.

[0057] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0058] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A housing assembly, comprising: Base; The outer casing is fitted onto the base, and a dispensing groove is formed between the outer casing and the base; The base is provided with a first partition groove, which is located inside the dispensing groove.

2. The housing assembly according to claim 1, wherein the base includes a main body and a peripheral portion, the peripheral portion is disposed around the main body and connected to the main body in a circumferential direction, the adhesive groove is formed between the peripheral portion and the outer shell, and the first partition groove is disposed in the peripheral portion.

3. The housing assembly according to claim 2, wherein the base has a first side and a second side disposed opposite to each other, the housing includes a side plate portion and a cover plate portion, the side plate portion is disposed around the base, the cover plate portion is located on the first side of the base and connected to the side plate portion, the dispensing groove is formed between the peripheral portion and the side plate portion and is located on the second side of the base, and the first partition groove and the dispensing groove are sequentially spaced apart in the direction from the peripheral portion to the side plate portion.

4. The housing assembly of claim 3, wherein the first partition groove is formed on the surface of the peripheral portion facing the first side or facing the second side.

5. The housing assembly of claim 4, wherein when the first partition groove faces the second side, the depth of the first partition groove is greater than the depth of the dispensing groove; and / or, When the first partition groove faces the second side, at least a portion of the first partition groove corresponds to the dispensing groove in the depth direction.

6. The housing assembly according to claim 3, wherein the base is provided with two first partition grooves, the two first partition grooves being respectively formed on the peripheral surface facing the first side and facing the second side.

7. The housing assembly of claim 6, wherein the depth of the first partition groove facing the second side is greater than the depth of the first partition groove facing the first side.

8. The housing assembly according to claim 3, wherein the side plate portion has a second partition groove facing the second side, and the first partition groove, the adhesive dispensing groove and the second partition groove are arranged sequentially at intervals in the direction from the peripheral portion to the side plate portion.

9. The housing assembly of claim 8, wherein the depth of the second partition groove is greater than the depth of the dispensing groove; and / or, In the depth direction of the second partition groove, at least a portion of the second partition groove corresponds to the position of the dispensing groove.

10. The housing assembly according to claim 8, wherein the second partition groove includes a multi-segment groove structure, and the multi-segment groove structure of the second partition groove is arranged sequentially at intervals in the circumferential direction of the base; Alternatively, the second partition groove is arranged around the base and connected end to end.

11. The housing assembly according to claim 2, wherein the first partition groove comprises a multi-segment groove structure, and the multi-segment groove structure of the first partition groove is sequentially spaced apart in the circumferential direction of the main body; or, The first partition groove is arranged around the main body and is connected end to end.

12. A relay comprising a housing assembly as described in any one of claims 1-11.

13. The relay according to claim 12, further comprising a main contact assembly and an auxiliary contact assembly, the main contact assembly comprising a driving spring portion and a main stationary spring portion disposed on the base and capable of being relatively close to or far away from each other, the auxiliary contact assembly comprising an auxiliary moving spring portion and an auxiliary stationary spring portion disposed on the base and capable of being relatively close to or far away from each other, at least a portion of the first partition groove being located between the main contact assembly and the dispensing groove, and at least a portion of the first partition groove being located between the auxiliary contact assembly and the dispensing groove.

14. The relay according to claim 13, wherein the first isolation groove includes a multi-segment groove structure, wherein at least one segment of the groove structure is located between the main contact assembly and the dispensing groove, and another at least one segment of the groove structure is located between the auxiliary contact assembly and the dispensing groove.