A relay

Abstract

The utility model discloses a relay, include: casing, including shell and being located the base of the opening department of shell, be equipped with first plug -in hole and second plug -in hole on the base, circuit control structure, including control main part, the coil end foot group and contact end foot group of being connected on control main part, control main part is located the inner chamber of shell, coil end foot group and contact end foot group are respectively worn and are equipped with first plug -in hole and second plug -in hole, and coil end foot group and contact end foot group are along X direction and are separately arranged, insulation frame, install on the base, block between coil end foot group and contact end foot group, the side of insulation frame towards base is equipped with the notch. The relay in the utility model, through the mode of setting the notch on the insulation frame, facilitate the flow of colloid on the surface of base, improve the evenness and the sealing glue speed of sealing glue on the surface of base.

Description

Technical Field

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

[0002] A relay is an automatic switching element that uses electromagnetic force to drive the movement of mechanical parts. It typically includes a housing, a coil drive assembly, an armature assembly, and a contact assembly, among other structures. The coil assembly and the contact assembly are respectively provided with coil terminals and contact terminals.

[0003] To achieve insulation between the coil leads and contact leads located outside the housing, an insulating frame is provided outside the housing to block the space between them. However, in the prior art, the insulating frame is a plate-like structure connected to the housing. When applying adhesive to the outer surface of the housing, the adhesive is blocked by the insulating frame and cannot flow quickly across the entire outer surface of the housing, resulting in low adhesive application efficiency. Utility Model Content

[0004] The purpose of this utility model is to disclose a relay to solve the technical problem of low glue application efficiency in existing relays.

[0005] To achieve the above objectives, this utility model discloses a relay, comprising: The housing includes an outer shell and a base disposed at an opening in the outer shell, the base having a first insertion hole and a second insertion hole; The circuit control structure includes a control body, a coil pin group and a contact pin group connected to the control body. The control body is located inside the cavity of the housing. The coil pin group and the contact pin group are respectively inserted through the first insertion hole and the second insertion hole, and the coil pin group and the contact pin group are separated along the X direction. An insulating frame is separately disposed from the base and is installed on the base, blocking the coil end group and the contact end group. The insulating frame has a notch on the side facing the base.

[0006] As an optional implementation, the insulating frame includes a first insulating part and a second insulating part, the first insulating part being separated between the coil end group and the contact end group, and the second insulating part being separated between two contact ends in the contact end group; The first insulating part has a first notch, and the second insulating part has a second notch.

[0007] As an optional implementation, along the Z direction, the distance between the plane containing the outer wall of the base and the plane containing the end face of the outer shell is L1, and the distance between the top wall of the notch and the outer wall of the base is L2, where L1 > L2.

[0008] As an optional implementation, the outer wall of the base is provided with a groove; The relay also includes a magnet, which is disposed within the groove; The insulating frame is placed over the opening of the groove and has a gap between it and the magnet. There are exhaust holes on the bottom wall of the groove, and the exhaust holes are connected to the gap and the inner cavity of the outer shell.

[0009] As an optional implementation, the base is provided with a plug-in groove, and the insulating frame is plugged into the plug-in groove and is interference-fitted with the plug-in groove.

[0010] As an optional implementation, the insulating frame is provided with a protrusion that is interference-fitted with the insertion slot.

[0011] As an optional implementation, the coil terminal in the coil terminal group has a first insertion segment that is inserted into the first insertion hole, and the first insertion segment is provided with a first adhesive groove, and / or the contact terminal in the contact terminal group has a second insertion segment that is inserted into the second insertion hole, and the second insertion segment is provided with a second adhesive groove.

[0012] As an optional implementation, the depth of the first adhesive reservoir and / or the second adhesive reservoir ranges from 0.05mm to 0.2mm.

[0013] As an optional implementation, the coil pin in the contact pin group is interference-fitted with the first insertion hole, and / or the contact pin in the coil pin group is interference-fitted with the second insertion hole.

[0014] As an optional implementation, the width direction of the first and second insertion holes is defined along the X direction, and along the Z direction, from the inner wall to the outer wall of the base, the width of at least one of the first and second insertion holes near the outer wall of the base gradually decreases.

[0015] Compared with the prior art, the beneficial effects of the relay of this utility model are as follows: The relay of this utility model has a notch in the insulating frame that separates the coil terminal group and the contact terminal group. When sealing the outer wall of the base with adhesive, the adhesive can flow through the notch and quickly cover the outer surface of the base, improving the sealing efficiency. At the same time, because the adhesive can flow through the notch, it can flow towards the central area of ​​the base, improving the uniformity of the sealing on the outer surface of the base. In addition, the insulating frame and the base are separate structures, which reduces the molding difficulty of the insulating frame and the base, and makes it easier to mold the insulating frame into the required structure. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of the relay according to an embodiment of the present utility model; Figure 2 yes Figure 1 An exploded view of a relay in a diagram; Figure 3 yes Figure 1 Another exploded view of the relay in the diagram; Figure 4 yes Figure 1 A top view of the relay in the image; Figure 5 yes Figure 4 A cross-sectional view along the AA direction; Figure 6 yes Figure 4 A cross-sectional view along the BB direction; Figure 7 yes Figure 1 A schematic diagram of the insulating frame in the diagram; Figure 8 yes Figure 1 A schematic diagram of the coil terminal group and contact terminal group in the diagram; Figure 9 yes Figure 1 A three-dimensional schematic diagram of the contact pins and base; Figure 10 yes Figure 9 A schematic diagram of the contact pins and base in the diagram; Figure 11 yes Figure 10 A cross-sectional view along the CC direction; Figure 12 yes Figure 11 Enlarged schematic diagram of point I in the middle.

[0018] Explanation of key figure labels: 100-Relay, 10-Housing, 11-Outer shell, 12-Base, 121-Groove, 122-Inner wall, 123-Outer wall, 124-First insertion hole, 125-Second insertion hole, 126-Exhaust hole, 127-Protrusion, 128-Guide slope, 129-Insertion groove, 21-Control body, 22-Coil end group, 221-Coil end, 222-First insertion section, 223-First adhesive groove, 23-Contact end group, 231-Contact end, 232-Second insertion section, 233-Second adhesive groove, 30-Insulating frame, 31-First insulating part, 311-First protrusion, 32-Second insulating part, 33-Notch, 331-First notch, 332-Second notch, 34-Covering part, 35-Gap, 341-Second protrusion, 35-Supporting part, 40-Magnet. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] In this invention, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0021] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

[0022] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; 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, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances.

[0023] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, components, or parts (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, components, or parts. Unless otherwise stated, "a plurality of" means two or more.

[0024] The technical solution of this utility model will be further described below with reference to the embodiments and accompanying drawings.

[0025] Please see Figures 1 to 12 This application provides a relay 100, which includes a housing 10, a circuit control structure, and an insulating frame 30.

[0026] Please refer to Figures 1 to 4 The housing 10 includes an outer shell 11 and a base 12 located at the opening of the outer shell 11. The base 12 is provided with a first insertion hole 124 and a second insertion hole 125. The circuit control structure includes a control body 21, a coil terminal group 22 and a contact terminal group 23 connected to the control body 21. The control body 21 is located inside the cavity of the outer shell 11. The coil terminal group 22 and the contact terminal group 23 pass through the base 12. The coil terminal group 22 and the contact terminal group 23 pass through the first insertion hole 124 and the second insertion hole 125 respectively, and the coil terminal group 22 and the contact terminal group 23 are separated along the X direction. The insulating frame 30 is separately provided with the base 12 and is installed on the base 12, blocking the coil terminal group 22 and the contact terminal group 23. The insulating frame 30 is provided with a notch 33 on the side facing the base 12.

[0027] The aforementioned relay 100, by providing a notch 33 on the insulating frame 30 that separates the coil terminal group 22 and the contact terminal group 23, allows the adhesive to flow through the notch 33 when sealing the outer wall 123 of the base 12, and can quickly cover the outer surface of the base 12, improving the sealing efficiency. At the same time, since the adhesive can flow through the notch 33, it can flow towards the central area of ​​the base 12, improving the uniformity of the sealing on the outer surface of the base 12. In addition, the insulating frame 30 and the base 12 are separate structures, which reduces the molding difficulty of the insulating frame 30 and the base 12, and makes it easier to mold the insulating frame 30 into the required structure.

[0028] It should be noted that the coil terminal group 22 of this application includes two coil terminals 221 separated along the Y direction, and the contact terminal group 23 includes two contact terminals 231 separated along the Y direction. In order to ensure the electrical insulation effect between each terminal, the insulating frame 30 includes a first insulating part 31 and a second insulating part 32. The first insulating part 31 is separated between the coil terminal group 22 and the contact terminal group 23, and the second insulating part 32 is separated between the two contact terminals 231 in the contact terminal group 23. In this way, the electrical insulation effect between each terminal is ensured.

[0029] Furthermore, when providing the notch 33 on the insulating frame 30, the notch 33 can be provided on the first insulating part 31, the second insulating part 32, or both the first insulating part 31 and the second insulating part 32. All of these methods can achieve the effect of improving the rapid flowability of the adhesive. Specifically, in order to ensure the smooth flow of the adhesive and the uniformity of the sealing, the first insulating part 31 in this embodiment is provided with a first notch 331, and the second insulating part 32 is provided with a second notch 332. The depth of the first notch 331 and the second notch 332 along the Z direction can be the same or different.

[0030] In this embodiment, the control body 21 includes a frame, a coil assembly mounted on the frame, a yoke mounted on the frame, an armature swinging relative to the yoke, a moving contact assembly connected to the armature, and a stationary contact assembly mounted on the base 12. The coil end 221 is connected to the coil, and the contact end 231 is inserted into the base 12 and is arranged opposite to the moving contact assembly.

[0031] Please refer to Figure 6 Since the outer wall 123 of the base 12 needs to be sealed with adhesive, there is a certain distance between the plane where the outer wall 123 of the base 12 is located and the plane where the end face of the outer shell 11 is located. Along the Z direction, the distance between the plane where the outer wall 123 of the base 12 is located and the plane where the end face of the outer shell 11 is located is L1, and the distance between the top wall of the notch 33 and the outer wall 123 of the base 12 is L2, where L1 > L2. Thus, when the adhesive is sealed on the outer wall 123 of the base 12 and the adhesive solidifies, the adhesive can fill the notch 33, so that the adhesive can block the coil end 221 and the contact end 231, achieving an insulation effect. This avoids the situation where the notch 33 is not completely filled after the adhesive is filled when L1 < L2. In this case, since there is an unblocked area between the coil end 221 and the contact end 231, it may lead to subsequent electrical conduction.

[0032] It should be noted that, in this embodiment, the inner wall 122 of the base 12 refers to the side wall facing the inner cavity of the outer shell 11, and the outer wall 123 of the base 12 refers to the side wall facing away from the inner cavity of the outer shell 11.

[0033] Please see Figures 2 to 5 To eliminate arcing when the moving and stationary contacts disconnect, the relay 100 in this embodiment also includes a magnet 40. When installing the magnet 40, it is positioned close to the contact end 231 and on the side of the contact end 231 away from the coil end 221. A groove 121 is provided on the outer wall 123 of the base 12, and the magnet 40 is disposed within the groove 121. An insulating frame 30 covers the opening of the groove 121, and there is a gap between the magnets 40. Specifically, the insulating frame 30 also includes a cover portion 34 connected to the first insulating portion 31. The cover portion 34 covers the opening of the groove 121, and an exhaust hole 126 is provided on the bottom wall of the groove 121. The exhaust hole 126 communicates with the gap 35 and the inner cavity of the outer casing 11, respectively. Thus, by setting the magnet 40, the effect of eliminating arcing can be achieved. Meanwhile, the base 12 is provided with… The groove 121 allows the magnet 40 to be installed. By providing a cover 34 to the insulating frame 30, the groove 121 can be sealed. The cover 34 and the magnet 40 abut against each other, and there is a gap 35 between the cover 34 and the bottom wall of the groove 121. When the relay 100 is assembled, there is air between the cover 34 and the base 12. By providing an exhaust hole 126 on the bottom wall of the groove 121, since the exhaust hole 126 is connected to the inner cavity of the outer shell 11, when the adhesive is heated and dried after sealing, in order to prevent the adhesive from bubbling during the baking process, the gas generated during the heating of the adhesive can be discharged into the gap 35 between the cover 34 and the magnet 40, and then discharged into the inner cavity of the outer shell 11 through the exhaust hole 126, and finally discharged through the air hole on the outer shell 11, thus preventing the adhesive from bubbling.

[0034] Furthermore, in order to ensure the structural strength of the entire insulating frame 30 and to facilitate the installation of the relay 100 to the external structure, the insulating frame 30 in this embodiment also includes a support portion 35. The support portion 35 and the first insulating portion 31 are disposed opposite to each other and connected to the other end of the second insulating portion 32 and to the cover portion 34, so that the entire insulating frame 30 presents an "I" shaped structure, as a whole, to ensure structural strength, so as to facilitate the assembly between the entire relay 100 and the external structure.

[0035] Please see Figure 3 and Figure 7This is a schematic diagram of the installation of the insulating frame 30 on the base 12 in this embodiment. In order to ensure the installation stability of the insulating frame 30 on the base 12, the base 12 is provided with a plug-in groove 129. The first insulating part 31 is inserted into the plug-in groove 129. The insulating frame 30 and the plug-in groove 129 are interference-fitted. For example, at least one of the first insulating part 31 and the second insulating part 32 is interference-fitted with the plug-in groove 129. In this way, through the interference fit, the insulating frame 30 can be stably installed on the base 12, avoiding the situation of detachment.

[0036] Specifically, when achieving the interference fit between the insulating frame 30 and the base 12, the insulating frame 30 is provided with a protrusion. Specifically, the first insulating part 31 is provided with a first protrusion 311 and the covering part 34 is provided with a second protrusion 341. The first protrusion 311 and the second protrusion 341 are respectively interference-fitted with the insertion groove 129 and the recess 121. The stability of the insertion into the base 12 is increased by setting multiple protrusions.

[0037] Please see Figures 8 to 10 This is a schematic diagram of the structure of two end-pin groups in an embodiment of the present invention. The base 12 is provided with a first insertion hole 124 for inserting the coil end-pin 221 and a second insertion hole 125 for inserting the contact end-pin 231. The coil end-pin 221 in the coil end-pin group 22 has a first insertion section 222 that inserts into the first insertion hole 124. The first insertion section 222 is provided with a first adhesive groove 223, and / or the contact end-pin 231 in the contact end-pin group 23 has... The second insertion section 232 is connected to the second insertion hole 125. The second insertion section 232 is provided with a second adhesive groove 233. In this way, when the contact end 231 and the coil end 221 are inserted into the corresponding insertion hole and the adhesive is subsequently applied, the adhesive can flow into the corresponding adhesive groove. After the adhesive cures, it can fully bond with the corresponding end, increase the connection strength between the end and the base 12, and prevent the end from cracking with the adhesive under abnormal conditions such as severe vibration.

[0038] In this embodiment, the width direction of the contact end 231 and the coil end 221 is the X direction. When the first adhesive groove 223 and the second adhesive groove 233 are respectively provided on the coil end 221 and the contact end 231, the first adhesive groove 223 can be provided on both sides of the width direction of the contact end 231, and / or the second adhesive groove 233 can be provided on both sides of the width of the coil end 221, so that the contact end 231 and the coil end 221 can be stably connected to the base 12 respectively.

[0039] Specifically, in this embodiment, the contact end 231 is provided with a first adhesive groove 223 on both sides of its width direction; at the same time, the coil end 221 is provided with a second adhesive groove 233 on both sides of its width direction. This ensures that the contact end 231 and the coil end 221 can have more contact area with the adhesive when they are inserted into the base 12, thus ensuring the stability of the installation on the base 12.

[0040] In one embodiment, the first adhesive reservoir 223 can be configured in a grid pattern, that is, the multiple first adhesive reservoirs 223 are arranged in a regular manner. For example, the multiple first adhesive reservoirs 223 include multiple rows, each row including multiple first adhesive reservoirs 223 separated along the Y direction, and the multiple rows of first adhesive reservoirs 223 are separated along the Z direction, so that the first adhesive reservoirs 223 are arranged in a regular manner, so that the adhesive can flow into each first adhesive reservoir 223, ensuring that each area of ​​the first insertion section 222 of the contact terminal 231 can be fully filled with adhesive. Similarly, the second adhesive reservoir 233 can be configured in a grid pattern, with multiple reservoirs arranged in a regular manner. For example, the multiple reservoirs 233 can include multiple rows, each row including multiple reservoirs 233 spaced along the Y direction, and the multiple rows of reservoirs 233 spaced along the Z direction. The adhesive can flow into each reservoir 233, ensuring that each area of ​​the second insertion section 232 of the contact pin 231 is fully filled with adhesive. In other embodiments, the first adhesive reservoir 223 and the second adhesive reservoir 233 can also be configured as elongated strips extending in a certain direction, such as extending along the Y direction, along the Z direction, or along the angle between the Y and Z directions, which can also achieve the effect of filling with adhesive.

[0041] When setting the first adhesive reservoir 223 and the second adhesive reservoir 233, the depth range of the first adhesive reservoir 223 and / or the second adhesive reservoir 233 is 0.05mm-0.2mm. This avoids the adhesive reservoir being set too deep, which would affect the structural strength of the corresponding end foot; and also avoids the depth being too shallow, which would prevent sufficient amount of adhesive from flowing in and affect the bonding strength of the end foot installed on the base 12. At the same time, this depth setting method also facilitates the opening and molding of the corresponding adhesive reservoir.

[0042] Please see Figures 10 to 12 In one embodiment of this utility model, when installing the coil end 221 and the contact end 231, the coil end 221 and the first insertion hole 124 are interference-fitted, and / or the contact end 231 and the second insertion hole 125 are interference-fitted. In this way, the interference fit ensures the stability of the contact end 231 and / or the coil end 221 installed on the base 12, and prevents movement when subjected to violent impacts or other situations.

[0043] In this embodiment, both the contact pin 231 and the coil pin 221 are mounted to the base 12 with an interference fit.

[0044] When assembling the relay 100, the contact pin 231 and coil pin 221 are first connected to the circuit control body 21. Then, the contact pin 231 and coil pin 221 are respectively inserted into the first insertion hole 124 and the second insertion hole 125 on the base 12, so that the circuit control body 21, the contact pin 231, the coil pin 221 and the base 12 are assembled into a preliminary whole. Then, the entire preliminary whole is placed upside down in the outer shell 11. Finally, the base 12 is sealed with glue, which can realize the assembly of the entire relay 100.

[0045] Specifically, the width direction of the first insertion hole 124 and the second insertion hole 125 is defined along the X direction. Along the Z direction, from the inner wall 122 to the outer wall 123 of the base 12, the width of at least one of the first insertion hole 124 and the second insertion hole 125 near the outer wall 123 of the base 12 gradually decreases. That is, at least one of the first insertion hole 124 and the second insertion hole 125 protrudes from the hole wall near the outer wall 123 of the base 12 towards the center of the hole to form a protrusion 127. The protrusion 127 has a guide slope 128. Along the inner wall 122 to the outer wall 123 of the base 12, the guide slope 128 is inclined from the inner wall 122 to the outer wall 123 and towards the center of the corresponding insertion hole to guide the insertion of the corresponding end. At the same time, the protrusion 127 can be interference-fitted with the corresponding end to ensure the stability of the end installed on the base 12.

[0046] The relay 100 described above, by setting the distance L2 between the top wall of the notch 33 and the outer wall 123 of the base 12 and the distance L1 between the plane of the outer wall 123 of the base 12 and the plane of the end face of the housing 11 to be L1 > L2, when the outer wall 123 of the base 12 is sealed with adhesive and the adhesive solidifies, the adhesive can fill the notch 33, so that the adhesive can block the coil terminal 221 and the contact terminal 231, achieving an insulation effect; by providing a pair of magnets 40 on the outer wall 123 of the base 12. The groove 121 for installation, and the vent hole 126 on the bottom wall of the groove 121, when the adhesive is heated and dried after sealing, the gas generated during the heating process can be discharged into the gap 35 between the cover part 34 and the magnet 40, and then discharged into the inner cavity of the outer shell 11 through the vent hole 126, and finally discharged through the air hole on the outer shell 11, so as to avoid the phenomenon of bubbling of the adhesive; the coil end 221 and the contact end 231 are respectively interference-fitted with the base 12 to ensure the installation stability of each end on the base 12.

[0047] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. A relay, characterized in that, include: The housing includes an outer shell and a base disposed at an opening in the outer shell, the base having a first insertion hole and a second insertion hole; The circuit control structure includes a control body, a coil pin group and a contact pin group connected to the control body. The control body is located inside the cavity of the housing. The coil pin group and the contact pin group are respectively inserted through the first insertion hole and the second insertion hole, and the coil pin group and the contact pin group are separated along the X direction. An insulating frame is separately disposed from the base and is installed on the base, blocking the coil end group and the contact end group. The insulating frame has a notch on the side facing the base.

2. The relay according to claim 1, characterized in that, The insulating frame includes a first insulating part and a second insulating part. The first insulating part is separated between the coil end group and the contact end group, and the second insulating part is separated between two contact ends in the contact end group. The first insulating part has a first notch, and the second insulating part has a second notch.

3. The relay according to claim 1 or 2, characterized in that, Along the Z direction, the distance between the plane containing the outer wall of the base and the plane containing the end face of the shell is L1, and the distance between the top wall of the notch and the outer wall of the base is L2, where L1 > L2.

4. The relay according to claim 1 or 2, characterized in that, The outer wall of the base is provided with a groove; The relay also includes a magnet, which is disposed within the groove; The insulating frame is placed over the opening of the groove and has a gap between it and the magnet. There are exhaust holes on the bottom wall of the groove, and the exhaust holes are connected to the gap and the inner cavity of the outer shell.

5. The relay according to claim 1 or 2, characterized in that, The base is provided with a plug-in groove, and the insulating frame is plugged into the plug-in groove with an interference fit.

6. The relay according to claim 5, characterized in that, The insulating frame is provided with a protrusion, which is interference-fitted with the insertion slot.

7. The relay according to claim 1 or 2, characterized in that, The coil terminal in the coil terminal group has a first insertion segment that is inserted into the first insertion hole, and the first insertion segment is provided with a first adhesive groove; and / or the contact terminal in the contact terminal group has a second insertion segment that is inserted into the second insertion hole, and the second insertion segment is provided with a second adhesive groove.

8. The relay according to claim 7, characterized in that, The depth of the first adhesive reservoir and / or the second adhesive reservoir ranges from 0.05mm to 0.2mm.

9. The relay according to claim 1 or 2, characterized in that, The coil pin in the contact pin group is interference-fitted with the first insertion hole, and / or the contact pin in the coil pin group is interference-fitted with the second insertion hole.

10. The relay according to claim 8, characterized in that, The width of the first and second insertion holes is defined along the X direction. Along the Z direction, from the inner wall to the outer wall of the base, the width of at least one of the first and second insertion holes near the outer wall of the base gradually decreases.

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