Housing assembly and relay

Abstract

The application relates to a shell assembly and a relay. The shell assembly comprises a shell and a base, the shell is provided with a mounting cavity, the mounting cavity has a mounting opening, the base can be mounted into the mounting cavity through the mounting opening, at least one of the shell and the base is provided with a groove at the corresponding mounting opening, the groove has a groove bottom wall and a groove opening, the groove opening corresponds to the groove bottom wall in the wall thickness direction of the shell, the width of the groove at the corresponding groove opening is smaller than the width of the groove at the corresponding groove bottom wall, and the groove is used for filling glue material so that the base is connected with the shell. The shell assembly and the relay of the application have the advantages that the width of the groove at the corresponding groove opening is smaller than the width of the groove at the corresponding groove bottom wall, so that the glue material filled in the groove is not easy to be taken out from the groove after the glue material is solidified, the bonding force of the glue material on the base and the shell is improved, and the bonding strength between the shell and the base is improved.

Description

Technical Field

[0001] This application relates to the field of relay technology, and in particular to a housing assembly and a relay. Background Technology

[0002] To isolate the internal components of a relay from the external environment, epoxy resin or similar adhesives are typically used to bond the housing and base together. However, in related technologies, the bonding strength between the base and housing materials and the adhesive is often poor, which can easily lead to insufficient bond strength between the housing and the base. Utility Model Content

[0003] Therefore, it is necessary to provide a housing assembly and a relay to solve the problem of how to improve the bonding strength between the housing and the base.

[0004] On one hand, this application provides a relay, wherein the housing assembly includes a housing and a base, the housing is provided with a mounting cavity, the mounting cavity has a mounting opening, the base can be inserted into the mounting cavity through the mounting opening, at least one of the housing and the base is provided with a groove corresponding to the mounting opening, the groove has a bottom wall and a groove opening, the groove opening corresponds to the bottom wall along the wall thickness direction of the housing, and the width of the groove at the groove opening is smaller than the width of the groove at the bottom wall, the groove is used to fill adhesive material so that the base is connected to the housing.

[0005] In one embodiment, both the outer casing and the base are provided with the groove, wherein the groove on the outer casing is a first groove, and the groove on the base is a second groove, and the first groove and the second groove are connected.

[0006] In one embodiment, the inner wall of the housing is provided with a plurality of first protrusions, which are spaced apart along the inner edge of the housing, such that a first groove is formed between any two adjacent first protrusions.

[0007] In one embodiment, the outer wall of the base is provided with a plurality of second protrusions, which are spaced apart along the outer edge of the base so that a second groove is formed between any two adjacent second protrusions.

[0008] In one embodiment, at least a portion of the end face of the first boss abuts against at least a portion of the end face of the second boss.

[0009] In one embodiment, the base includes a main body and a cover plate, the main body being housed in the mounting cavity, the cover plate being connected to the main body and covering the mounting opening, and a plurality of second protrusions being disposed on the cover plate.

[0010] In one embodiment, the groove has a first groove wall and a second groove wall, the first groove wall and the second groove wall being opposite each other, and at least one of the first groove wall and the second groove wall being inclined relative to the bottom wall of the groove.

[0011] In one embodiment, the angle between the first tank wall and the bottom wall of the tank is 30° to 60°; and / or, the angle between the second tank wall and the bottom wall of the tank is 30° to 60°.

[0012] In one embodiment, the groove is a trapezoidal groove.

[0013] On the other hand, this application provides a relay including a relay body and a housing assembly as described above, wherein the relay body is mounted on the base, and at least a portion of the structure of the relay body is housed within the mounting cavity.

[0014] The aforementioned housing assembly and relay include a housing and a base. At least one of the housing and the base has a groove at the mounting opening of the corresponding mounting cavity. This groove is used to fill adhesive material, thereby connecting the base and the housing. The adhesive material enhances the strength of the connection between the base and the housing. Because the width of the groove at the corresponding opening is smaller than the width of the groove at the bottom wall, the adhesive material filling the groove is less likely to detach from the groove after curing. This improves the bonding force of the adhesive material to the base and the housing, thereby increasing the bonding strength between the housing and the base. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments or related technologies of this application, the accompanying drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other embodiments can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of a housing assembly according to an embodiment of this application.

[0017] Figure 2 for Figure 1 A magnified view of the area within the center circle.

[0018] Figure 3 This is a schematic diagram of the outer shell of the housing assembly in one embodiment of this application.

[0019] Figure 4 for Figure 3 A magnified view of the area within the center circle.

[0020] Figure 5This is a schematic diagram of the base of the housing assembly in one embodiment of this application.

[0021] Figure 6 for Figure 5 A top view of the base of the housing assembly.

[0022] Figure 7 for Figure 6 A magnified view of the area within the center circle.

[0023] Explanation of icon numbers:

[0024] 10. Outer shell; 11. Mounting cavity; 111. Mounting port; 101. First boss; 20. Base; 21. Main body; 22. Cover plate; 201. Second boss; 30. Groove; 301. First groove; 302. Second groove; 31. Groove bottom wall; 32. Groove opening; 33. First groove wall; 34. Second groove wall. Detailed Implementation

[0025] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0026] One embodiment of this application provides a relay, including a relay body and a housing assembly. The housing assembly serves as the external encapsulation structure for the relay, providing a sealed space for the relay body to achieve dustproof, waterproof, and other protective effects.

[0027] The inventors discovered that when epoxy resin and other adhesives are used to bond the outer shell and the base together, the bonding force between the base and the outer shell materials and the adhesive is poor, which can easily lead to insufficient bonding strength between the outer shell and the base.

[0028] Combination Figure 1 and Figure 3 As shown, in the relay provided in this application, the housing assembly includes a housing 10 and a base 20. The housing 10 is provided with a mounting cavity 11, and the mounting cavity 11 has a mounting port 111, through which the base 20 can be inserted into the mounting cavity 11.

[0029] Combination Figure 2 and Figure 4As shown, at least one of the outer casing 10 and the base 20 has a groove 30 at the corresponding mounting opening 111. The groove 30 has a bottom wall 31 and an opening 32, the opening 32 corresponding to the bottom wall 31 along the wall thickness direction of the outer casing 10, and the width W1 of the groove 30 at the corresponding opening 32 is smaller than the width W2 of the groove 30 at the corresponding bottom wall 31. The groove 30 is used to fill adhesive material so that the base 20 is connected to the outer casing 10.

[0030] In this embodiment, at least one of the outer shell 10 and the base 20 has a groove 30 at the mounting opening 111 of the corresponding mounting cavity 11. This groove 30 is used to fill adhesive material, thereby connecting the base 20 to the outer shell 10. The adhesive material enhances the strength of the connection between the base 20 and the outer shell 10. Furthermore, since the width W1 of the groove 30 at the corresponding opening 32 is smaller than the width W2 of the groove 30 at the corresponding bottom wall 31, the adhesive material filling the groove 30 is less likely to detach from the groove 30 after curing. This improves the bonding force of the adhesive material to the base 20 and the outer shell 10, thereby increasing the bonding strength between the outer shell 10 and the base 20.

[0031] It should be noted that the relay body is mounted on the base 20, and at least a portion of the relay body's structure is housed within the mounting cavity 11. Thus, after the housing 10 is connected to the base 20, the housing 10 and the base 20 can provide dust and water protection for the structure of the relay body located within the mounting cavity 11 (e.g., the contact portion and the magnetic circuit portion).

[0032] Continue to combine Figure 2 As shown, in some embodiments, both the outer casing 10 and the base 20 are provided with grooves 30. For ease of description, the groove 30 on the outer casing 10 is referred to as the first groove 301, and the groove 30 on the base 20 is referred to as the second groove 302. In this embodiment, the first groove 301 and the second groove 302 are connected, thereby the adhesive material in the interconnected first groove 301 and the second groove 302 bonds together. After the adhesive material cures, it stably fits with the first groove 301 and is not easily detached from it, and it stably fits with the second groove 302 and is not easily detached from it, thereby further strengthening the bonding strength between the outer casing 10 and the base 20.

[0033] It should be noted that there are multiple possibilities for the arrangement of the first groove 301 and the second groove 302. In some embodiments, the first groove 301 and the second groove 302 can be formed during the processing of the outer shell 10 and the base 20 by injection molding, or the first groove 301 and the second groove 302 can be formed by cutting or laser engraving on the outer shell 10 and the base 20. The method of forming the first groove 301 and the second groove 302 is not limited here.

[0034] Combination Figure 3 and Figure 4 As shown, in some embodiments, the inner wall of the outer casing 10 is provided with a plurality of first protrusions 101. The plurality of first protrusions 101 are spaced apart along the inner edge of the outer casing 10, such that a first groove 301 is formed between any two adjacent first protrusions 101.

[0035] In this embodiment, a plurality of first protrusions 101 are arranged at intervals on the inner wall of the outer casing 10 to form a first groove 301 by utilizing the gaps between the spaced first protrusions 101. Since the side of the first protrusion 101 corresponds to the groove wall of the first groove 301, when the first groove 301 is filled with adhesive, the adhesive will bond with the first protrusion 101 after curing. Understandably, the first groove 301 serves as a groove 30 on the outer casing 10. The width W1 of the first groove 301 at the corresponding groove opening 32 is smaller than the width W2 of the first groove 301 at the corresponding groove bottom wall 31. Therefore, the first protrusions 101 and the adhesive in the first groove 301 interlock with each other, making it difficult for the adhesive to come out of the first groove 301, thereby enhancing the bonding strength between the outer casing 10 and the base 20.

[0036] Combination Figure 5 and Figure 6 As shown, in some embodiments, the outer wall of the base 20 is provided with a plurality of second protrusions 201, and the plurality of second protrusions 201 are spaced apart along the outer edge of the base 20, so that a second groove 302 is formed between any two adjacent second protrusions 201.

[0037] In this embodiment, a plurality of second protrusions 201 are spaced apart on the outer wall of the base 20 to form a second groove 302 using the gaps between the spaced second protrusions 201. Since the side of the second protrusion 201 corresponds to the groove wall of the second groove 302, when the second groove 302 is filled with adhesive, the adhesive will bond with the second protrusion 201 after curing. Understandably, the second groove 302 serves as a groove 30 on the base 20. The width W1 of the second groove 302 at the corresponding groove opening 32 is smaller than the width W2 of the second groove 302 at the corresponding groove bottom wall 31. Therefore, the second protrusions 201 and the adhesive in the second groove 302 interlock with each other, making it difficult for the adhesive to come out of the second groove 302, thereby enhancing the bonding strength between the outer shell 10 and the base 20.

[0038] Furthermore, in the embodiment where the first groove 301 and the second groove 302 are connected, the adhesive fills the space formed by the first groove 301 and the second groove 302, so that after the adhesive is cured, it not only interlocks with the first boss 101, but also interlocks with the second boss 201, thereby further improving the bonding strength of the adhesive between the outer shell 10 and the base 20.

[0039] It should be noted that there are multiple possibilities for the connection between the first groove 301 and the second groove 302. For example, in some embodiments, the first groove 301 and the second groove 302 are connected in a one-to-one correspondence. In some embodiments, when there are multiple first grooves 301 and multiple second grooves 302, some of the first grooves 301 are simultaneously connected to two or more second grooves 302; or, some of the second grooves 302 are simultaneously connected to two or more first grooves 301. The number of first grooves 301 and second grooves 302, and the manner in which they are connected, are not limited here.

[0040] Combination Figure 2 As shown, in some embodiments, at least a portion of the end face of the first boss 101 abuts against at least a portion of the end face of the second boss 201. Thus, the abutment of the first boss 101 and the second boss 201 allows for the installation and positioning of the housing 10 and the base 20, enabling the housing 10 and the base 20 to achieve the desired assembly effect, facilitating subsequent filling of the groove 30 with adhesive. Understandably, because the first boss 101 and the second boss 201 abut against each other, after the first groove 301 and the second groove 302 are filled with adhesive, the adhesive is less likely to leak from the gap between the first boss 101 and the second boss 201, thus maintaining sufficient adhesive in the first groove 301 and the second groove 302 to enhance the bonding force between the housing 10 and the base 20.

[0041] It should be noted that the adhesive material can be injected into the corresponding groove 30 through a dispensing device, or it can be applied to the mounting opening 111 of the mounting cavity 11 and then flow into the groove 30 from the mounting opening 111. The filling method of the adhesive material is not limited here. Furthermore, the type of adhesive material includes, but is not limited to, epoxy resin potting compound, silicone potting compound, or polyurethane potting compound.

[0042] Combination Figure 5 As shown, in some embodiments, the base 20 includes a main body 21 and a cover plate 22. The main body 21 is housed in the mounting cavity 11, and the cover plate 22 is connected to the main body 21, covering the mounting opening 111. A plurality of second protrusions 201 are provided on the cover plate 22. In this embodiment, structures such as coil assemblies or yoke assemblies in the relay body can be mounted using the main body 21. Since the cover plate 22 can cover the mounting opening 111 and has a plurality of second protrusions 201, the sealing performance of the housing assembly can be improved by connecting the cover plate 22 to the base 20.

[0043] It should be noted that the cover plate 22 and the main body 21 can be connected by a snap-fit ​​or be integrally formed. The connection method between the cover plate 22 and the main body 21 is not limited here.

[0044] Regarding the shape of the groove 30 on the outer casing 10 and / or base 20, it can be a regular shape, for example, the groove 30 is a trapezoidal groove 30. Here, a trapezoidal groove 30 means that the outline of the area enclosed by the sidewalls forming the groove 30 is trapezoidal. In other embodiments, the groove 30 can also be an irregular shape, which is not limited here. As long as the width W1 of the groove 30 at the corresponding opening 32 is less than the width W2 of the groove 30 at the corresponding bottom wall 31, filling the groove 30 with adhesive material will prevent the adhesive material from easily coming out of the opening 32 after curing, thereby enhancing the bonding strength between the base 20 and the outer casing 10.

[0045] Combination Figure 7 As shown, in some embodiments, the groove 30 has a first groove wall 33 and a second groove wall 34. The first groove wall 33 and the second groove wall 34 are opposite to each other, and at least one of the first groove wall 33 and the second groove wall 34 is inclined relative to the bottom wall 31 of the groove.

[0046] In some embodiments, only one of the first groove wall 33 and the second groove wall 34 may be inclined to the bottom wall 31. For example, the first groove wall 33 may be inclined to the bottom wall 31, and the second groove wall 34 may be perpendicular to the bottom wall 31. In this way, after the adhesive filling the groove 30 cures, the adhesive will be restrained by the inclined first groove wall 33 and will not easily come out of the groove 30, thereby enhancing the bonding strength of the adhesive to the outer shell 10 and the base 20. As another example, the first groove wall 33 may be perpendicular to the bottom wall 31, and the second groove wall 34 may be inclined to the bottom wall 31. In this way, after the adhesive filling the groove 30 cures, the adhesive will be restrained by the inclined second groove wall 34 and will not easily come out of the groove 30, thereby enhancing the bonding strength of the adhesive to the outer shell 10 and the base 20.

[0047] It should be noted that the inclination angle of the first groove wall 33 and / or the second groove wall 34 relative to the bottom wall 31 can be flexibly configured according to the bonding force required between the outer shell 10 and the base 20.

[0048] In some embodiments, the included angle between the first groove wall 33 and the bottom wall 31 is 30° to 60°, specifically 30°, 35°, 40°, 45°, 50°, 55° or 60°, which is not limited here. When the included angle between the first groove wall 33 and the bottom wall 31 is 30° to 60°, the first groove wall 33 of the groove 30 has high structural strength and is conducive to enhancing the strength of the interlocking structure formed with the adhesive material in the groove 30.

[0049] In some embodiments, the included angle between the second groove wall 34 and the bottom wall 31 is 30° to 60°, specifically 30°, 35°, 40°, 45°, 50°, 55° or 60°, which is not limited here. The second groove wall 34 of the groove 30 has high structural strength and is conducive to enhancing the strength of the interlocking structure formed with the adhesive material in the groove 30.

[0050] 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.

[0051] 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.

[0052] 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.

[0053] 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.

[0054] 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.

[0055] 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.

[0056] 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, characterized in that, The housing assembly includes an outer shell and a base. The outer shell has a mounting cavity with a mounting opening. The base can be inserted into the mounting cavity through the mounting opening. At least one of the outer shell and the base has a groove corresponding to the mounting opening. The groove has a bottom wall and an opening. The opening corresponds to the bottom wall along the wall thickness direction of the outer shell, and the width of the groove at the opening is smaller than the width of the groove at the bottom wall. The groove is used to fill adhesive material so that the base can be connected to the outer shell.

2. The housing assembly according to claim 1, characterized in that, Both the outer shell and the base are provided with the groove, wherein the groove on the outer shell is a first groove and the groove on the base is a second groove, and the first groove and the second groove are connected.

3. The housing assembly according to claim 2, characterized in that, The inner wall of the outer shell is provided with a plurality of first protrusions, which are spaced apart along the inner edge of the outer shell so that the first groove is formed between any two adjacent first protrusions.

4. The housing assembly according to claim 3, characterized in that, The outer wall of the base is provided with a plurality of second protrusions, which are spaced apart along the outer edge of the base so that a second groove is formed between any two adjacent second protrusions.

5. The housing assembly according to claim 4, characterized in that, At least a portion of the end face of the first boss abuts against at least a portion of the end face of the second boss.

6. The housing assembly according to claim 4, characterized in that, The base includes a main body and a cover plate. The main body is housed in the mounting cavity, and the cover plate is connected to the main body and covers the mounting opening. A plurality of second protrusions are disposed on the cover plate.

7. The housing assembly according to claim 1, characterized in that, The groove has a first groove wall and a second groove wall, the first groove wall and the second groove wall are opposite to each other, and at least one of the first groove wall and the second groove wall is inclined relative to the bottom wall of the groove.

8. The housing assembly according to claim 7, characterized in that, The angle between the first tank wall and the bottom wall of the tank is 30° to 60°; And / or, the angle between the second tank wall and the bottom wall of the tank is 30° to 60°.

9. The housing assembly according to claim 1, characterized in that, The groove is a trapezoidal groove.

10. A relay, characterized in that, It includes a relay body and a housing assembly as described in any one of claims 1-9, wherein the relay body is mounted on the base, and at least a portion of the structure of the relay body is housed within the mounting cavity.

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