Relay module

Abstract

The application relates to a relay module. The relay module comprises a relay body, a current transformer and at least one abutting boss; a shell of the relay body is fixedly connected with a shell of the current transformer, the shell has a first side wall, the shell has a second side wall which is oppositely arranged with the first side wall, a gap is formed between the first side wall and the second side wall, the abutting boss is arranged in the gap and is located on a path of the shell relative to the shell. The relay module of the application improves the anti-falling performance of the relay to meet the actual application requirements of the whole machine.

Description

Technical Field

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

[0002] A relay is an electronic control device that has a control system (also known as an input circuit) and a controlled system (also known as an output circuit). It is commonly used in automatic control circuits and is essentially an "automatic switch" that uses a smaller current to control a larger current. Therefore, it plays a role in automatic adjustment, safety protection, and circuit switching in circuits.

[0003] When relays are used in charging guns or charging piles for electric vehicles, a relay module is typically used to detect the load's electrical charge. This module includes a relay body and a current transformer connected in series with the relay body. In this series connection, one of the relay body's two terminals can pass directly through a hole in the current transformer's housing, while the other terminal must bypass the current transformer's housing to connect to the load. However, in traditional technology, relay modules have poor drop resistance; during a drop, the relay body easily separates from the current transformer, failing to meet the practical application requirements of relay modules. Utility Model Content

[0004] Therefore, it is necessary to provide a relay module that improves the drop resistance of the relay.

[0005] This application provides a relay module, including a relay body, a current transformer, and at least one abutting boss;

[0006] The housing of the relay body is fixedly connected to the outer shell of the current transformer. The housing has a first side wall, and the outer shell has a second side wall that is opposite to the first side wall. A gap is formed between the first side wall and the second side wall.

[0007] The abutting boss is disposed within the gap and is located on the path along which the outer shell swings relative to the housing.

[0008] In one embodiment, one of the two opposing sides of the abutting boss is connected to the first sidewall, and the other side extends toward the second sidewall;

[0009] And / or, of the two opposite sides of the abutting boss, one side is connected to the second sidewall, and the other side extends toward the first sidewall;

[0010] And / or, the two opposite sides of the abutting boss abut against the first sidewall and the second sidewall respectively.

[0011] In one embodiment, the housing has a through hole with its axis perpendicular to the second sidewall, and the abutment boss is disposed on one side of the axis of the through hole.

[0012] In one embodiment, the sidewall of the abutting boss, together with the first sidewall and the second sidewall, forms a cavity, and the relay module further includes an adhesive layer disposed within the cavity.

[0013] In one embodiment, there are multiple abutment bosses, which are arranged at intervals in the radial direction of the through hole, and a flow channel is formed between the sidewalls of adjacent abutment bosses.

[0014] In one embodiment, a plurality of the abutting bosses are arranged around the axis of the through hole;

[0015] And / or, the projection of the abutment boss onto a plane perpendicular to the axis of the through hole is arc-shaped.

[0016] In one embodiment, the axis of the abutting boss coincides with the axis of the through hole.

[0017] In one embodiment, the adhesive layer includes a substrate, the outer wall of which is coated with an adhesive.

[0018] In one embodiment, the projection of the abutting boss onto a plane perpendicular to the axis of the through hole is located within the projection range of the second sidewall onto a plane perpendicular to the axis of the through hole.

[0019] In one embodiment, the relay module further includes a first terminal and a second terminal. One end of the first terminal is located inside the relay body, and the other end extends beyond the through hole to the outside of the relay body. A portion of the first terminal is located within the gap. The sidewall of the abutment boss, a portion of the sidewall of the first terminal, and the first and second sidewalls together form the cavity. The second terminal penetrates through the through hole on the housing, and one end of the second terminal is located inside the relay body.

[0020] The aforementioned relay module has an abutment boss positioned within the gap and along the path of the outer casing's swing relative to the housing. When the relay module is subjected to a falling impact, the current transformer swings relative to the relay body. The abutment boss limits the swing amplitude of the outer casing relative to the housing, reducing it and preventing stress concentration at the connection point due to torsion caused by the swing. This avoids stress concentration and potential breakage of the connection structure, thus improving the relay module's drop resistance and meeting the actual application requirements of the entire device. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the connection between the relay body and the current transformer in traditional technology.

[0022] Figure 2 This is a side view of the connection between the relay body and the current transformer in traditional technology.

[0023] Figure 3 This is a schematic diagram of a relay module in one embodiment.

[0024] Figure 4 This is an exploded view of the relay module components in one embodiment.

[0025] Figure 5 This is a schematic diagram of the structure of a current transformer in one embodiment.

[0026] Figure 6 This is a schematic diagram of the current transformer in another embodiment.

[0027] Figure 7 for Figure 6 Front view of a medium current transformer.

[0028] Figure 8 This is a top view of a relay module in one embodiment.

[0029] Figure 9 for Figure 8 Sectional view at point AA.

[0030] The attached figures are labeled as follows:

[0031] 1. Relay body; 11. Housing; 111. First side wall; 112. First plug-in part; 2. Current transformer; 21. Outer shell; 211. Second side wall; 212. Through hole; 213. Second plug-in part; 3. Gap; 4. Abutting boss; 41. Current guiding channel; 5. Cavity; 6. First terminal; 7. Second terminal. Detailed Implementation

[0032] 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.

[0033] 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.

[0034] 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.

[0035] 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.

[0036] 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.

[0037] 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.

[0038] like Figure 1 , Figure 2 As shown, in the conventional technology, the relay body 1 includes a first terminal 6 and a second terminal 7. During the series connection of the relay body 1 and the current transformer 2, one end of the first terminal 6 is located inside the relay body 1, and the other end of the first terminal 6 bypasses the housing 21 of the current transformer 2 and connects to the load. One end of the second terminal 7 is located inside the relay body 1, and the other end passes through a through-hole 212 on the housing 21 of the current transformer 2 and connects to the load. The housing 11 of the relay body 1 is fixedly connected to the housing 21 of the current transformer 2. Because the first terminal 6 needs to bypass the housing 21 of the current transformer 2 to connect to the load, a gap 3 is formed between the opposing sidewalls of the housing 11 and the housing 21, preventing them from fitting together.

[0039] Due to the presence of gap 3, when the relay module is subjected to a drop test, the current transformer 2 swings relative to the relay body 1 under the impact of the drop force. When the swing amplitude is too large, the outer shell 21 twists relative to the housing 11, causing stress concentration at the connection point. The connection structure between the outer shell 21 and the housing 11 is prone to breakage and failure. The overall drop resistance performance is poor and cannot meet the actual application requirements of the whole machine.

[0040] Specifically, such as Figure 2 As shown, the housing 11 has a first sidewall 111, and the outer casing 21 has a second sidewall 211 opposite to the first sidewall 111, with a gap 3 formed between the first sidewall 111 and the second sidewall 211. To facilitate the fixed connection between the housing 11 of the relay body 1 and the outer casing 21 of the current transformer 2, and to facilitate the assembly and disassembly of the current transformer 2, in one embodiment, the housing 11 and the outer casing 21 are fixedly connected by a plug-in connection, such as... Figure 1As shown, a first insertion portion 112 extending toward the second sidewall 211 is provided on the first sidewall 111, and a second insertion portion 213 corresponding to the first insertion portion 112 is provided on the second sidewall 211. When the current transformer 2 is installed with the housing 11 of the relay body 1, the second insertion portion 213 on the housing 21 of the current transformer 2 is inserted into the first insertion portion 112 along the length direction of the second insertion portion 213. Furthermore, in order to improve the stability when the housing 11 and the housing 21 are fixedly connected, adhesive can be applied between the sidewalls where the first insertion portion 112 and the second insertion portion 213 contact to improve the connection strength after the first insertion portion 112 and the second insertion portion 213 are inserted. After assembly, since the first terminal 6 is located between the first sidewall 111 and the second sidewall 211, the first sidewall 111 and the second sidewall 211 cannot fit together to form a gap 3. Therefore, during the process of the relay falling, the housing 21 of the current transformer 2 is easily inserted along the gap 3. Figure 2 When the direction shown in the figure swings, if the swing amplitude of the outer shell 21 relative to the housing 11 is large, the connection between the outer shell 21 and the housing 11 will be twisted due to the swing, resulting in stress concentration. The connection structure between the outer shell 21 and the housing 11 is prone to breakage and failure, and the overall anti-drop performance of the machine is poor.

[0041] It should be noted that in this application, the swing axis of the outer casing 21 when it swings relative to the casing 11 is perpendicular to the length direction of the first plug-in portion 112 and the second plug-in portion 213. The first terminal 6 is connected to the neutral wire of the load, and the second terminal 7 is connected to the live wire of the load. In another embodiment, the casing 11 and the outer casing 21 can be fixedly connected by other plug-in structures, such as providing a plug post on the first side wall 111 and a corresponding plug hole on the second side wall 211, or providing a plug hole on the first side wall 111 and a corresponding plug post on the second side wall 211, with an interference fit between the plug post and the plug hole, to achieve the plug-in fixation between the casing 11 and the outer casing 21. In some other embodiments, the casing 11 of the relay body 1 and the outer casing 21 of the current transformer 2 can also be fixedly connected by bonding, welding, or threaded connectors. The fixed connection between the casing 11 and the outer casing 21 is not limited to the plug-in, bonding, welding, or threaded connectors mentioned in the embodiments of this application. The method of fixing the housing 11 and the outer shell 21 can be adapted to the specific structure of the housing 11 and the outer shell 21 and the actual production needs.

[0042] like Figure 3 As shown, in one embodiment provided in this application, the relay module includes a relay body 1, a current transformer 2 and at least one abutment boss 4; the abutment boss 4 is disposed in the gap 3 and is located on the path in which the outer casing 21 swings relative to the housing 11, thereby limiting the swing amplitude of the outer casing 21 relative to the housing 11.

[0043] In this application, when the relay module is subjected to the impact of a drop, the current transformer 2 swings relative to the relay body 1. At this time, one side of the abutment boss 4 can abut against the first side wall 111 to support the housing 11, and the other side abuts against the second side wall 211 to support the outer shell 21. The abutment boss 4 limits the swing amplitude of the outer shell 21 relative to the housing 11, thereby reducing the swing amplitude of the outer shell 21 relative to the housing 11. This prevents the outer shell 21 and the housing 11 from twisting due to the swing at the connection point, causing stress concentration and separation of the outer shell 21 and the housing 11 due to the breakage of the connection structure. This improves the drop resistance performance of the relay module to meet the actual application requirements of the whole machine.

[0044] To facilitate the installation of the abutment boss 4 and reduce processing costs, in one embodiment, one side of the opposing sides of the abutment boss 4 is connected to the first sidewall 111, and the other side extends towards the second sidewall 211. In this embodiment, the abutment boss 4 is installed on the housing 11 and can be integrally formed with it. In another embodiment, one side of the opposing sides of the abutment boss 4 is connected to the second sidewall 211, and the other side extends towards the first sidewall 111. In this embodiment, the abutment boss 4 is installed on the outer shell 21 and can be integrally formed with it. In yet another embodiment, the opposing sides of the abutment boss 4 abut against the first sidewall 111 and the second sidewall 211 respectively. In this embodiment, the abutment boss 4 exists independently of the housing 11 and the outer shell 21, and can be processed as a separate part. The abutment boss 4 can be fixed to the outer shell 21 or the housing 11 by adhesive bonding, facilitating rapid installation.

[0045] In this application, the abutment protrusions 4 can be configured in various ways. In some other embodiments, when there are multiple abutment protrusions 4, all abutment protrusions 4 can be located on the housing 11 or the outer shell 21, or all abutment protrusions 4 can be separate parts. Alternatively, some abutment protrusions 4 can be located on the housing 11, some on the outer shell 21, and some as separate parts. Or, some abutment protrusions 4 can be located on the housing 11, and the remaining abutment protrusions 4 on the outer shell 21. Or, some abutment protrusions 4 can be located on the housing 11, and the remaining abutment protrusions 4 are separate parts. Or, some abutment protrusions 4 can be located on the outer shell 21, and the remaining abutment protrusions 4 are separate parts. There are a total of seven configuration methods, and the position and number of abutment protrusions 4 can be adaptively adjusted according to actual needs.

[0046] During the drop of the relay module, one side of the abutment boss 4 can abut against the first side wall 111 to support the housing 11, and the other side abuts against the second side wall 211 to support the outer shell 21. The abutment boss 4 mechanically limits the first side wall 111 and the second side wall 211, reducing the swing amplitude of the outer shell relative to the housing. This prevents the outer shell from twisting due to swing at the connection point, thus avoiding stress concentration and preventing the connection structure between the outer shell 21 and the housing 11 from breaking and failing. This improves the overall anti-drop performance of the machine to meet the actual application requirements of the machine.

[0047] Furthermore, to improve the stability of the connection between the outer casing 21 and the housing 11, the non-abutting area between the outer casing 21 and the housing 11, excluding the abutting boss 4, is filled. For example... Figure 9 As shown, in one embodiment, the sidewall of the abutment boss 4, together with the first sidewall 111 and the second sidewall 211, forms a cavity 5, and an adhesive layer (not shown in the figure) is provided inside the cavity 5. By providing an adhesive layer in the non-abutment area outside the abutment boss 4, the force-bearing area between the first sidewall 111 and the second sidewall 211 is increased, avoiding damage caused by local stress concentration at the abutment boss 4 when the whole machine is subjected to drop impact, and fixing the relative position between the outer shell 21 and the housing 11. At the same time, during the drop process, the adhesive layer can not only strengthen the connection structure between the housing 11 and the outer shell 21, but also buffer the drop impact, reduce the impact force on the connection between the outer shell 21 and the housing 11, further reduce the risk of the current transformer as a whole torsion and breakage at the connection structure relative to the relay body 1, and improve the drop resistance performance of the whole machine.

[0048] Furthermore, in this application, as Figure 3 As shown, since one end of the first terminal 6 is located inside the relay body 1, and the other end extends beyond the through hole 212 to the outside of the relay body 1, a portion of the first terminal 6 is located within the gap 3. Therefore, as... Figure 9 As shown, in one embodiment, the side wall of the abutment boss 4, part of the side wall of the first terminal 6, the first side wall 111 and the second side wall 211 together form a cavity 5. When an adhesive layer is provided in the cavity 5, the part of the structure of the first terminal 6 located in the gap 3 also blocks or supports the adhesive layer, further improving the stability of the adhesive layer structure.

[0049] In some embodiments, the adhesive layer may use a flexible material (such as rubber or silicone) as a substrate, with adhesive applied to the outer wall of the substrate. Before the housing 11 is fixedly connected to the outer shell 21, the adhesive layer is bonded to the first sidewall 111 or the second sidewall 211, and then the housing 11 and the outer shell 21 are fixedly connected. Because the substrate has a certain elastic deformation capability, it can buffer the impact of a drop during the relay module's drop. The structure of the adhesive layer can be adaptively adjusted according to actual design requirements.

[0050] In this application, in order to simplify the assembly process, after the housing 11 and the outer shell 21 are fixedly connected, adhesive is directly filled into the cavity 5. After the adhesive cures, an adhesive layer is formed in the cavity 5. The structure is simple and easy to operate.

[0051] Furthermore, such as Figure 5 , Figure 6 , Figure 7 As shown, in one embodiment, the current transformer 2 is a through-hole current transformer 2, and the axis of the through hole 212 on the housing 21 is perpendicular to the second side wall 211. The abutment boss 4 is provided on one side of the axis of the through hole 212. Figure 2 As shown, the outer shell 21 is prone to swinging relative to the housing 11 in the illustrated direction, causing the insertion structure between the two to twist. The center of the swing is close to the axis of the through hole 212. If the abutment boss 4 is set at the axis of the through hole 212, it will not limit the swing amplitude of the outer shell 21 relative to the housing 11. Therefore, the abutment boss 4 is set on one side of the axis of the through hole 212, that is, the abutment boss 4 needs to be set at a certain distance from the axis of the through hole 212 in order to limit the swing amplitude of the outer shell 21 relative to the housing 11. Therefore, in this embodiment, the abutment boss 4 is set at the edge of the through hole 212 or the edge of the second sidewall 211, away from the axis of the through hole 212.

[0052] During the process of filling and curing adhesive in the cavity 5 to form an adhesive layer, in order to promote the directional flow of adhesive within the cavity 5 and prevent the adhesive from flowing directly out of the through hole 212, which would result in some areas of the cavity 5 being unable to be filled with adhesive, multiple abutment bosses 4 are arranged at intervals in the radial direction of the through hole 212. A flow channel 41 is formed between the sidewalls of adjacent abutment bosses 4. The adhesive flows directionally to all parts of the cavity 5 through the flow channel 41, and after curing, an adhesive layer is formed.

[0053] It should be noted that, as Figure 9 As shown, during the process of injecting adhesive into cavity 5, the relay module needs to be rotated 180° so that the opening of cavity 5 faces upward. Only in this way can the adhesive fill cavity 5 under the action of gravity. After the adhesive in cavity 5 has cured, the opening of the entire cavity 5 can be set downward.

[0054] like Figure 5 As shown, in one embodiment, there is one abutment boss 4. The abutment boss 4 is integrally formed with the outer shell 21. The abutment boss 4 is located near the edge of the second side wall 211 and extends towards the first side wall 111 along the axial direction of the through hole 212. When the outer shell 21 is inserted into the housing 11, the side of the abutment boss 4 away from the second side wall 211 extends towards the first side wall 111, reducing the gap 3. The side wall of the abutment boss 4, the first side wall 111, and the second side wall 211 enclose and form a cavity 5.

[0055] like Figure 6 As shown, in one embodiment, there are two abutment protrusions 4, with one end of each protrusion 4 connected to the second sidewall 211 and the other end extending towards the first sidewall 111. It should be noted that one abutment protrusion 4 is positioned near the edge of the second sidewall 211, and the other abutment protrusion 4 is positioned near the radial edge of the through hole 212. The two abutment protrusions 4 are arranged radially spaced apart in the through hole 212. The sidewalls of the two abutment protrusions 4, together with the first sidewall 111 and the second sidewall 211, form a cavity 5. A flow channel 41 is formed between the sidewalls of the two abutment protrusions 4 to prevent adhesive from overflowing directly from the through hole 212, while allowing the adhesive to fill various areas of the cavity 5 along a designated path.

[0056] Furthermore, in order to rationally arrange the abutting bosses 4 and facilitate the positioning of multiple abutting bosses 4, the multiple abutting bosses 4 are arranged around the axis of the through hole 212. That is, the multiple abutting bosses 4 all use the axis of the through hole 212 as the positioning reference, which is beneficial for processing.

[0057] Furthermore, in some embodiments, the abutting boss 4 and the outer shell 21 are integrally molded using an injection molding process. To facilitate demolding of the outer shell 21 from the abutting boss 4, such as... Figure 7 As shown, the projection of the abutment boss 4 onto the plane perpendicular to the axis of the through hole 212 is arc-shaped. That is, the abutment boss 4 is part of a ring. The size and shape of the abutment boss 4 can be adapted and adjusted according to the actual assembly situation to avoid interference with other structures of the relay body 1, and no restrictions are imposed here. Furthermore, in order to facilitate the setting of the abutment boss 4 and reduce the positioning difficulty of the abutment boss 4 during mold processing and assembly, the axis of the abutment boss 4 coincides with the axis of the through hole 212.

[0058] Furthermore, in some embodiments, the abutment boss 4 is integrally injection molded with the outer shell 21. In order to reduce the external dimensions of the outer shell 21 and reduce the difficulty of modifying the mold of the outer shell 21, the projection of the abutment boss 4 on the plane perpendicular to the axis of the through hole 212 is located within the projection range of the second sidewall 211 on the plane perpendicular to the axis of the through hole 212. This avoids adding extra dimensions due to the abutment boss 4 extending outside the second sidewall 211, and is easier to process.

[0059] It should be noted that, in some embodiments, during the fixed connection of the housing 11 and the outer shell 21, in order to avoid interference between the abutment boss 4 and the assembly between the outer shell 21 and the housing 11, and to ensure that the swing amplitude of the abutment boss 4 relative to the housing 11 is small, the thickness of the abutment boss 4 needs to be slightly smaller than the gap 3 between the first sidewall 111 and the second sidewall 211, and the difference between the gap 3 and the thickness of the abutment boss 4 is less than or equal to 0.1 mm. Specifically, when the abutment boss 4 is integrally formed with the outer shell 21, then, as Figure 8 As shown, one side of the abutment boss 4 is connected to the second sidewall 211, and the distance between the end of the abutment boss 4 extending toward the first sidewall 111 and the first sidewall 111 is less than or equal to 0.1 mm. When the abutment boss 4 is integrally formed with the housing 11, the distance between the end of the abutment boss 4 extending toward the second sidewall 211 and the second sidewall 211 is less than or equal to 0.1 mm.

[0060] Furthermore, in some embodiments, since the thickness of the abutment boss 4 needs to be slightly smaller than the gap 3 between the first side wall 111 and the second side wall 211, when the whole machine is dropped, in order to avoid the outer shell 21 swinging relative to the shell 11, causing the abutment boss 4 to collide with the first side wall 111 or the second side wall 211, resulting in local stress concentration damage to the abutment boss 4, the side wall edge of the abutment boss 4 is provided with a chamfer.

[0061] 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.

[0062] 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 relay module, characterized in that, Includes the relay body, current transformer, and at least one abutting boss; The housing of the relay body is fixedly connected to the outer shell of the current transformer. The housing has a first side wall, and the outer shell has a second side wall that is opposite to the first side wall. A gap is formed between the first side wall and the second side wall. The abutting boss is disposed within the gap and is located on the path along which the outer shell swings relative to the housing.

2. The relay module according to claim 1, characterized in that, Of the two opposing sides of the abutting boss, one side is connected to the first sidewall, and the other side extends toward the second sidewall; And / or, of the two opposite sides of the abutting boss, one side is connected to the second sidewall, and the other side extends toward the first sidewall; And / or, the two opposite sides of the abutting boss abut against the first sidewall and the second sidewall respectively.

3. The relay module according to claim 1, characterized in that, The outer casing has a through hole, the axis of which is perpendicular to the second side wall, and the abutment boss is provided on one side of the axis of the through hole.

4. The relay module according to claim 3, characterized in that, The sidewall of the abutting boss, together with the first sidewall and the second sidewall, forms a cavity, and the relay module also includes an adhesive layer disposed within the cavity.

5. The relay module according to claim 4, characterized in that, The number of abutting bosses is multiple, and the multiple abutting bosses are arranged at intervals in the radial direction of the through hole, and a guide channel is formed between the sidewalls of adjacent abutting bosses.

6. The relay module according to claim 5, characterized in that, The plurality of abutting bosses are arranged around the axis of the through hole; And / or, the projection of the abutment boss onto a plane perpendicular to the axis of the through hole is arc-shaped.

7. The relay module according to claim 6, characterized in that, The axis of the abutting boss coincides with the axis of the through hole.

8. The relay module according to claim 4, characterized in that, The adhesive layer includes a substrate, the outer wall of which is covered with an adhesive.

9. The relay module according to claim 3, characterized in that, The projection of the abutting boss onto a plane perpendicular to the axis of the through hole lies within the projection range of the second sidewall onto a plane perpendicular to the axis of the through hole.

10. The relay module according to claim 4, characterized in that, The relay module further includes a first terminal and a second terminal. One end of the first terminal is located inside the relay body, and the other end extends beyond the through hole to the outside of the relay body. A portion of the first terminal is located within the gap. The side wall of the abutment boss, a portion of the side wall of the first terminal, and the first and second side walls together form the cavity. The second terminal passes through the through hole on the outer shell, and one end of the second terminal is located inside the relay body.

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