Relay

Abstract

Provided in the present disclosure is a relay, comprising a housing, a contact member and a limiting member. The housing is provided with a first side wall perpendicular to an X-axis direction; the contact member comprises a contact member body, the contact member body penetrating the first side wall in the X-axis direction so as to be in limiting fit with the housing in a Y-axis direction; and the limiting member is fixedly connected to the contact member body and is provided with a limiting portion in non-rotating fit with the first side wall so as to limit the contact member body from swinging around an axis extending in a Z-axis direction. The contact member of the present application has a stable structure and is not prone to shaking.

Description

relay

[0001] This disclosure claims priority to Chinese patent application No. 202411561667.9, filed on November 4, 2024, and Chinese patent application No. 202510974045.7, filed on July 15, 2025, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This invention relates to the field of relays, and more specifically to a relay. Background Technology

[0003] A relay is an electronic switch that connects and disconnects a load circuit. A relay consists of a housing and contact parts. The housing houses the various functional components, and the contact parts include contact elements that penetrate the sidewalls of the housing. The portion of the contact element inside the housing has a stationary contact to connect or disconnect with a moving contact, while the portion outside the housing has connection terminals for external electrical connection.

[0004] Generally, the stability of the contact can be affected by factors such as the contact between the moving and stationary contacts and the locking stress when the connection terminal is locked to an external device. Therefore, when the contact is installed on the housing, it needs to form a limiting fit with the housing in the contact direction of the moving and stationary contacts to maintain stability and ensure that the contact gap, contact pressure, and operating parameters of the magnetic circuit are not affected. In the prior art, the limiting fit between the contact and the housing is specifically achieved by the portion of the contact that penetrates the side wall of the housing and forming a limiting fit with that side wall, and the end of the contact located inside the housing also forming a limiting fit with the housing, thereby ensuring the stability of the stationary contact position.

[0005] However, in practice, it has been found that in some cases where the internal structure of a relay is compact, there is no extra space in the housing to limit the end of the contact located inside the housing. The contact only forms a limiting fit with the housing at the part that penetrates the side wall of the housing. This results in the contact being structurally unstable and prone to shaking when under stress, which cannot guarantee the good working performance of the relay. Summary of the Invention

[0006] The purpose of this invention is to overcome the above-mentioned defects or problems in the prior art and to provide a relay whose contact structure is stable and not easily shaken.

[0007] To achieve the above objectives, the present invention and its preferred embodiments employ the following technical solutions, but the embodiments are not limited to the following solutions:

[0008] Technical solution one and its related embodiments provide a relay, including a housing having a first sidewall; a contact member including a contact member body fixedly connected to each other; the contact member body passing through the first sidewall along the X-axis direction to limit the housing in the Y-axis direction; and a limiting member fixedly connected to the contact member body and having a limiting portion that prevents rotation in cooperation with the first sidewall to restrict the contact member body from swinging about an axis extending along the Z-axis direction, wherein the X-axis direction, the Y-axis direction and the Z-axis direction are mutually perpendicular.

[0009] Based on technical solution one, there is also technical solution two. In technical solution two and its related embodiments, the first sidewall is perpendicular to the X-axis direction, and the limiting part extends along the Y-axis direction.

[0010] Based on technical solution two, there is also technical solution three. In technical solution three and its related embodiments, the first sidewall is provided with a thickened part, the thickened part is provided with a first limiting groove, the first limiting groove is provided with two groove sidewalls that are opposite to each other along the X-axis direction; the limiting part is adapted to be inserted into the first limiting groove and form an anti-rotation fit and a limiting fit along the X-axis direction with the two groove sidewalls.

[0011] Based on technical solution three, there is also technical solution four. In technical solution four and its related embodiments, the limiting part is a flat plate perpendicular to the X-axis direction; both of the groove sidewalls are perpendicular to the X-axis direction.

[0012] Based on technical solution three, there is also technical solution five. In technical solution five and its related embodiments, the limiting part and the first limiting groove are also glued and fixed by adhesive.

[0013] Based on technical solution four, there is also technical solution six. In technical solution six and its related embodiments, the housing includes a base, one end of which is open along the Z-axis direction, and the first sidewall is disposed on the base; the height direction of the contact body is the Z-axis direction, and the first limiting groove extends along the Z-axis direction to the open end of the base.

[0014] Based on technical solution three, there is also technical solution seven. In technical solution seven and its related embodiments, the limiting member is further provided with a connecting piece that is integrated with the limiting part. The connecting piece is a flat piece perpendicular to the Y-axis direction, and it is attached to and fixed to one side of the contact body along the Y-axis direction.

[0015] Based on technical solution seven, there is also technical solution eight. In technical solution eight and its related embodiments, along the X-axis direction, the connecting piece is adapted to extend out of the housing from the first sidewall.

[0016] Based on technical solution eight, technical solution nine is also provided. In technical solution nine and its related embodiments, the number of limiting members is two, and the thickened part is provided with two first limiting grooves corresponding to the two limiting parts respectively; the two limiting members are respectively fixed to both sides of the contact body along the Y-axis direction; the contact body forms a limiting fit with the housing along the Y-axis direction through the two connecting pieces.

[0017] Based on technical solution seven, technical solution ten is also provided. In technical solution ten and its related embodiments, the contact element is further provided with a first stationary contact point and a connecting terminal fixedly connected to the contact body. The first stationary contact point is located inside the housing and on one side of the contact element body along the Y-axis direction, and is adapted to be abutted along the Y-axis direction. The connecting terminal is fixedly connected to the part of the contact element body located outside the housing. The limiting part is located on the side of the contact element body away from the first stationary contact point along the Y-axis direction.

[0018] Based on technical solution ten, technical solution eleven is also provided. In technical solution eleven and its related embodiments, the first static contact point is arranged on both sides of the contact body along the Y-axis direction; the number of limiting members is two, and the two limiting members are respectively fixed to both sides of the contact body along the Y-axis direction; the thickened part is provided with two first limiting grooves corresponding to the two limiting parts respectively.

[0019] Based on technical solution nine, there is also technical solution twelve. In technical solution twelve and its related embodiments, both connecting pieces are provided with at least two first through holes opened along the Y-axis direction, and the contact body is provided with a number of second through holes that are equal to and correspond one-to-one with the number of first through holes. The connecting pieces are riveted to the contact body by rivets that pass through the first and second through holes.

[0020] Based on technical solution 12, there is also technical solution 13. In technical solution 13 and its related embodiments, at least two rivets are riveted in opposite directions.

[0021] Based on any one of technical solutions one to thirteen, there is also a technical solution fourteen. In technical solution fourteen and its related embodiments, the limiting member is made of metal.

[0022] Based on technical solution six, technical solution fifteen is also provided. In technical solution fifteen and its related embodiments, the base is further provided with a bottom wall perpendicular to the Z-axis direction and suitable for supporting the contact member. The bottom wall is provided with a fourth limiting groove. The contact member body is provided with an insertion part that is limited and matched with the fourth limiting groove along the Y-axis direction. The thickened part extends to the bottom wall along the Z-axis direction.

[0023] Based on technical solution eleven, technical solution sixteen is also provided. In technical solution sixteen and its related embodiments, a first movable spring and two second movable spring units are further included. The first movable spring extends along the X-axis direction, and its first end in the length direction is provided with two first movable contacts that are opposite to each other. The second end is fixedly connected to two first stationary contacts and forms a first movable spring unit with the contact member. The two second movable spring units are respectively located on both sides of the first movable spring unit along the Y-axis direction. Each second movable spring unit includes a second movable spring, a lead-out member, a second stationary contact, and a second movable contact, wherein the second movable spring extends along the X-axis direction. Each second movable spring unit has a second stationary contact and a second movable contact fixedly connected on the side facing the first movable spring unit. The second stationary contact corresponds to the second movable contact, and the second movable contact corresponds to the second stationary contact. The second movable spring unit also has a lead-out end that is fixedly connected to the lead-out member and the second stationary contact. The lead-out end penetrates the housing and extends out of the housing.

[0024] Based on technical solution sixteen, technical solution seventeen is also provided. In technical solution seventeen and its related embodiments, the housing is further provided with a second sidewall perpendicular to the Y-axis direction and adjacent to the first sidewall; the lead-out end closer to the second sidewall of the two lead-out parts of the two second moving spring units is defined as the first lead-out end part, and the lead-out end part farther away from the second sidewall is defined as the second lead-out end part; the first lead-out end part is attached to the second sidewall and is limited and connected to the second sidewall along the X-axis direction and the Y-axis direction, and the part of the second lead-out end part located inside the housing is limited and connected to the housing along the Y-axis direction; the thickened part extends to the second sidewall along the Y-axis direction.

[0025] Based on technical solution seventeen, there is also technical solution eighteen. In technical solution eighteen and its related embodiments, the second sidewall is provided with a thickened portion that penetrates the thickened portion along the Y-axis direction. The thickened portion is provided with a second through hole and a second limiting groove communicating with the second through hole and the hole wall of the second through hole. The first lead-out end includes a first connecting portion, a first lead-out body integrated with the first connecting portion, and a plug-in portion integrated with the first lead-out body. The first connecting portion abuts against the inner surface of the second sidewall and extends along the X-axis direction. The end of the first connecting portion away from the second through hole is limited and engaged with the housing along the Y-axis direction. The first lead-out body penetrates the second through hole along the Y-axis direction and is restricted from moving along the X-axis direction by the hole wall of the second through hole. The plug-in portion is limited and engaged with the second limiting groove along the Y-axis direction.

[0026] Based on technical solution eighteen, technical solution nineteen is also provided. In technical solution nineteen and its related embodiments, the base is further provided with a third sidewall parallel to the first sidewall and adjacent to the second sidewall; the base is provided with a third limiting groove with an opening facing the third sidewall and away from the second sidewall; the second lead-out end includes a second lead-out body that penetrates the third sidewall along the X-axis direction and is limited by the third sidewall along the Y-axis direction; the end of the second lead-out body located inside the housing away from the third sidewall is provided with a positioning part, and the positioning part is limited and engaged with the third limiting groove along the Y-axis direction. From the above description of the present invention and its preferred embodiments, it can be seen that, compared with the prior art, the technical solutions and preferred embodiments of the present invention have the following beneficial effects due to the adoption of the following technical means:

[0027] Through continuous observation, experimentation, and research, the inventors of this application have discovered that the technical problem arising from the prior art—that "when the contact only forms a limiting fit with the housing at the part that penetrates the side wall of the housing, the contact is prone to structural instability and wobbling, making it impossible to guarantee the good working performance of the relay"—is that when the contact only forms a limiting fit with the housing at the part that penetrates the side wall of the housing, both the part of the contact inside the housing and the part of the contact outside the housing are presented in a cantilever form, resulting in poor stability. Therefore, when the stationary contact and the passive contact collide, or when the stationary contact and the moving contact are separated, the contact may deflect due to the force, leading to poor stability of the stationary contact position. This affects the subsequent working parameters of the relay, such as contact pressure, contact gap, relay holding force, operating voltage, and reset voltage, thus failing to guarantee the good working performance of the relay. Furthermore, when the connection terminal of the contact is connected to the outside, the part of the contact located outside may also be subjected to force due to connection stress, leading to contact deflection, which also easily leads to poor stability of the stationary contact position and fails to guarantee the good working performance of the relay.

[0028] In the first technical solution and its preferred embodiment, the contact body and the housing are limited and fitted along the Y-axis. The limiting member is fixed to the contact body and is provided with a limiting part that anti-rotationally engages with the first sidewall to restrict the contact body from swinging around the axis extending along the Z-axis. Therefore, when the contact is subjected to force due to contact between the stationary and passive contacts, or when the stationary and moving contacts are separated, or when the connecting terminal is connected to the load, the first sidewall can prevent the contact body from swinging around the axis extending along the Z-axis by anti-rotationally engaging with the limiting part. This prevents the contact from displacing in the contact direction between the moving and stationary contacts, ensuring the stability of the contact and the good working performance of the relay. Furthermore, the limiting component and the contact component are two independent parts. This is beneficial for manufacturing and processing, reducing the consumption of expensive materials. On the other hand, the independently designed limiting component allows for a larger limiting portion size based on actual strength requirements. If the limiting component and the contact component were a single unit, the limited thickness of the contact component would restrict the size of the limiting portion formed by processing, such as stamping, to prevent rotational engagement with the first sidewall. This would make it difficult to achieve an effective limiting fit, and the first sidewall might be damaged due to excessive contact pressure caused by an excessively small limiting portion. In addition, in this technical solution, the limiting portion only engages with the first sidewall to prevent rotation. Therefore, only the structure of the existing relay's first sidewall needs improvement, and the limiting component and contact component need to be fixed together. The overall relay structure requires minimal modification, and the relay assembly process does not need alteration. This ensures stable relay operation with minimal changes and low cost.

[0029] In technical solution two and its preferred embodiments, the limiting part extends along the Y-axis direction, and the first sidewall is perpendicular to the X-axis direction, that is, the limiting part is parallel to the first sidewall. Compared with the limiting part extending along the X-axis direction or other directions perpendicular to the Z-axis direction, this reduces the space occupied by the limiting part in the X-axis direction, avoids interference between the limiting part and the installation and operation of the stationary contact or other components, and simplifies the connection structure between the limiting member and the contact body. Therefore, this technical solution does not require increasing the space of the housing along the X-axis direction, resulting in a smaller relay size.

[0030] In technical solution three and its preferred embodiments, the first sidewall is provided with a thickened portion, and the thickened portion is provided with a first limiting groove. The first limiting groove has two groove sidewalls that are opposite to each other along the X-axis direction. The limiting portion is adapted to be inserted into the first limiting groove and form an anti-rotation fit and a limiting fit along the X-axis direction with the two groove sidewalls. Therefore, the limitation of the limiting portion by the two groove sidewalls can prevent the contact from swinging around the axis extending along the Z-axis direction when the moving contact and the stationary contact are in contact or when the connecting terminal is connected to the load, thereby helping to ensure the stability of the contact. The thickened portion also enhances the strength of the first sidewall and the supporting force for the limiting portion, thereby further ensuring the stable fit between the limiting portion and the first sidewall.

[0031] In the fourth technical solution and its preferred embodiment, the limiting part is a flat plate perpendicular to the X-axis direction; the two groove sidewalls are perpendicular to the X-axis direction, which helps to reduce the space occupied by the limiting part and the thickened part in the X-axis direction, avoids increasing the space occupied by the relay in the X-axis direction, and the structure of the limiting part and the first limiting groove is simple and easy to form and assemble.

[0032] In technical solution five and its preferred embodiments, the limiting part and the first limiting groove are also glued together by adhesive. When the limiting part and the groove sidewall of the first limiting groove are glued together, the bonding area is large, which is conducive to further improving the connection stability between the limiting part and the first sidewall, and to a certain extent increasing the deformation resistance of the first sidewall. The bonding operation is convenient and easy to implement.

[0033] In technical solution six and its preferred embodiments, the height direction of the contact body is the Z-axis direction. The groove sidewall of the first limiting groove extends along the Z-axis direction to the opening end of the base, making full use of the space of the base in the Z-axis direction to increase the contact area between the limiting part and the two groove sidewalls of the first limiting groove, thereby increasing the anti-rotation force of the limiting part and the first sidewall, and further ensuring the stability of the contact position. The groove sidewall of the first limiting groove extends to the opening end of the base, that is, the first limiting groove opens at the opening end of the base. During assembly, the assembly direction of the limiting part and the contact is consistent, which is not only conducive to automated assembly and improving production efficiency, but also makes the groove sidewalls on both sides of the first limiting groove have a larger area for cooperating with the limiting part, so as to further improve the anti-rotation cooperation capability.

[0034] In technical solution seven and its preferred embodiments, the limiting member is further provided with a connecting piece that is integrated with the limiting part. The connecting piece is a flat piece perpendicular to the Y-axis direction. It is attached to and fixed to one side of the contact body along the Y-axis direction. Compared with the solution of fixing the connecting piece to other parts of the contact body, the contact area between the connecting piece and the contact body is larger, which is more conducive to the anti-rotation transmission of the limiting part to the contact body, and the structure of the contact is more stable.

[0035] In the eighth technical solution and its preferred embodiment, the connecting piece is adapted to extend out of the housing from the first side wall along the Y-axis direction, which avoids the connecting piece occupying too much internal space of the housing and ensures that the area of ​​the connecting piece and the contact body can be made larger to meet better fixing strength requirements, so that the anti-rotation effect of the connecting piece is better converted into the anti-rotation effect of the contact body.

[0036] In technical solution nine and its preferred embodiment, the two limiting members are fixedly connected to both sides of the contact body along the Y-axis direction, the thickened part is provided with two first limiting grooves corresponding to the two limiting members respectively, and the contact body forms a limiting fit with the shell along the Y-axis direction through two connecting pieces, which further increases the anti-rotation force between the contact member and the first side wall, thereby improving the connection stability between the contact member and the shell.

[0037] In the tenth technical solution and its preferred embodiment, the first stationary contact is located on one side of the contact body along the Y-axis and is suitable to be abutted along the Y-axis. The limiting part is located on the side of the contact body away from the first stationary contact along the Y-axis. Therefore, when the first stationary contact is abutted, the limiting part can provide a force opposite to the abutting force to the contact body, thereby improving the stability of the contact.

[0038] In technical solution eleven and its preferred embodiment, the contact body is provided with first stationary contact points on both sides along the Y-axis direction, and there are two limiting members. The two limiting members are fixedly connected to the two sides of the contact body along the Y-axis direction respectively. The thickened part is provided with two first limiting grooves corresponding to the two limiting parts respectively, which further increases the anti-rotation force between the contact member and the first sidewall, thereby improving the connection stability between the contact member and the shell.

[0039] In the twelfth technical solution and its preferred embodiment, the first through hole and the second through hole are coaxial, and the connecting piece is riveted to the contact body by a rivet that passes through the first through hole and the second through hole, so that the rivet can rivet the contact body and the two connecting pieces at the same time, making the riveting operation convenient and time-saving.

[0040] In technical solution thirteen and its preferred embodiments, at least two rivets are riveted in opposite directions. Compared with the riveting directions of all rivets being the same, this allows the connecting piece and the contact body to be connected by rivets on both sides simultaneously, resulting in a more uniform mechanical distribution and stronger connection force. This makes the connection structure of the connecting piece and the contact body more stable and thus better able to resist stress from different directions.

[0041] In the fourteenth technical solution and its preferred embodiment, the limiting member is made of metal, which has high strength, is not easily deformed, has a good limiting effect, and can help the contact member dissipate heat and reduce temperature rise.

[0042] In technical solution fifteen and its preferred embodiment, a fourth limiting groove is provided on the bottom wall, and the contact body is provided with an insertion part that limits and cooperates with the fourth limiting groove along the Y-axis direction, making full use of the internal space of the housing and further improving the strength of the side where the contact is mounted on the stationary contact. The thickened part extends to the bottom wall along the Z-axis direction, further increasing the strength of the thickened part.

[0043] In the sixteenth technical solution and its preferred embodiment, the first moving spring unit formed by the first moving spring and the contact can be selectively connected in parallel with one of the second moving spring units, thereby diversifying the functions of the relay.

[0044] In technical solution seventeen and its preferred embodiment, the first lead-out member abuts against the second sidewall and is limited and connected to the second sidewall along the Y-axis direction. The portion of the first lead-out member located inside the housing is limited and connected to the housing along the Y-axis direction, making full use of the internal space of the housing, thus giving the first lead-out member high stability. This, in turn, gives the second stationary contact high stability and ensures that the relay's operating parameters, such as contact pressure, contact gap, relay holding force, operating voltage, and reset voltage, are not affected. The thickened portion extends along the Y-axis direction to the second sidewall, further increasing the strength of the first sidewall.

[0045] In the eighteenth technical solution and its preferred embodiment, the thickened portion enhances the strength of the second sidewall and the supporting force for the first lead-out body. The thickened portion is provided with a second through hole, and the second limiting groove is connected to the second through hole, making the wall thickness at the position where the first lead-out body penetrates the second sidewall thicker, improving the deformation resistance of the second sidewall and making it more conducive to the structural stability of the second sidewall. On the other hand, compared with the second limiting groove being formed at other positions outside the second sidewall, it is also more conducive to reducing interference with other components. The first lead-out body and the first connecting portion are integrated, and the plug-in portion is integrated with the first lead-out body, which is convenient to process. The first connecting portion is close to the second sidewall, and its end away from the second through hole is limited and matched with the housing along the Y-axis direction. The plug-in portion is limited and matched with the second limiting groove along the Y-axis direction, so that a large anti-rotation force is formed between the first lead-out member and the second sidewall, and the structure is stable. Moreover, since the first connecting portion is close to the second sidewall, even if the contact area between the plug-in portion and the second limiting groove is small, it has little impact on the overall anti-deflection performance of the first lead-out member.

[0046] In the nineteenth technical solution and its preferred embodiment, the second lead-out body penetrates the third sidewall along the X-axis direction, and the positioning part and the third limiting groove are limited and matched along the Y-axis direction, so that the two ends of the second lead-out member located in the housing are limited, and the structure is stable and not easy to shake; after such arrangement, the contact member of the first moving spring unit and the lead-out members of the two second moving spring units are led out from different sidewalls of the housing, which not only do not interfere with each other, but also ensure the strength of the housing. Attached Figure Description

[0047] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments are briefly introduced. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0048] Figure 1 is a three-dimensional structural diagram of the base of the housing according to an embodiment of the present invention;

[0049] Figure 2 is a top view of Figure 1;

[0050] Figure 3 is a three-dimensional structural diagram of the first moving spring unit and the limiting member according to an embodiment of the present invention;

[0051] Figure 4 is an enlarged schematic diagram of part A in Figure 3;

[0052] Figure 5 is a three-dimensional structural diagram of the contact body and the connecting terminal according to an embodiment of the present invention;

[0053] Figure 6 is a top view of Figure 3;

[0054] Figure 7 is a schematic diagram of the first moving spring unit and the limiting member assembled in the base according to an embodiment of the present invention;

[0055] Figure 8 is a schematic diagram of the first moving spring unit, the limiting member, and the second moving spring unit assembled in the base according to an embodiment of the present invention.

[0056] Key reference numerals in the accompanying drawings: 100. Housing; 10. Base; 11. First sidewall; 111. Thickened portion; 112. First through hole; 113. First limiting groove; 1131. Groove sidewall; 12. Second sidewall; 121. Thickened portion; 122. Second through hole; 123. Second limiting groove; 13. Third sidewall; 131. Third through hole; 132. Fifth limiting groove; 14. Bottom wall; 141. Fourth limiting groove; 15. Partition wall; 151. Through hole; 152. Third limiting groove; 16. First zone; 17. Second zone; 200. First moving spring unit; 20. First moving spring leaf; 21. 30. First moving contact; 31. First stationary contact; 32. Contact body; 321. Second through hole; 322. Insertion part; 33. Connecting terminal; 40. Limiting member; 41. Limiting part; 42. Connecting piece; 421. First through hole; 51. Second moving spring; 52. Second moving contact; 53. Second stationary contact; 60. Lead-out member; 61. First lead-out member; 611. First connecting part; 612. First lead-out body; 613. Insertion part; 62. Second lead-out member; 621. Second lead-out body; 622. Positioning part; 70. Driving member; 71. Driving part. Detailed Implementation

[0057] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are preferred embodiments of the present invention and should not be considered as excluding other embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0058] Unless otherwise expressly defined, the use of terms such as "first," "second," or "third" in the claims, description, and accompanying drawings of this invention is for distinguishing different objects and not for describing a specific order.

[0059] Unless otherwise expressly defined, in the claims, description, and accompanying drawings of this invention, the use of directional terms such as "center," "lateral," "longitudinal," "horizontal," "vertical," "top," "bottom," "inner," "outer," "upper," "lower," "front," "rear," "left," "right," "clockwise," and "counterclockwise" to indicate orientation or positional relationships is based on the orientation and positional relationships shown in the accompanying drawings and is only for the convenience of describing the invention and simplifying the description, and is not intended to 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 limiting the specific scope of protection of this invention.

[0060] Unless otherwise expressly defined, the terms "fixed connection" or "fixed connection" used in the claims, description and drawings of this invention should be interpreted broadly to refer to any connection in which there is no displacement or relative rotation relationship between the two parties, including non-removable fixed connection, detachable fixed connection, integral connection and fixed connection by other means or components.

[0061] In the claims, description and accompanying drawings of this invention, the terms "comprising," "having," and variations thereof are used to mean "including but not limited to."

[0062] In the claims and the description other than the embodiments, the terms "X-axis direction," "Y-axis direction," and "Z-axis direction" only refer to a feature having one of the aforementioned directions being perpendicular to a feature having another direction, and do not require that they be implemented according to the "X-axis direction," "Y-axis direction," and "Z-axis direction" described in the embodiments. In the embodiments, the X-axis direction is perpendicular to both the Y-axis direction and the Z-axis direction. The X-axis direction can be divided into left and right, the Y-axis direction into front and back, and the Z-axis direction into up and down.

[0063] Referring to Figures 1-8, the relay includes a housing 100, a first moving spring unit 200, a limiting member 40, two second moving spring units, two lead-out members 60, and a driving member 70.

[0064] Referring to Figures 1-2, the housing 100 includes a base 10 and a cover plate (not shown in the figure). The base 10 is a box-shaped structure with one end open. The base 10 is open at one end along the Z-axis and has a first side wall 11 and a third side wall 13 that are parallel to each other, as well as a second side wall 12 that connects the first side wall 11 and the third side wall 13. The first side wall 11 and the third side wall 13 are both perpendicular to the X-axis, and the second side wall 12 is perpendicular to the Y-axis. That is, the housing 100 has a first side wall 11 perpendicular to the X-axis. The base 10 also has a bottom wall 14 perpendicular to the Z-axis. The bottom wall 14 is adapted to support the first moving spring unit 200 and the second moving spring unit mentioned below. The bottom wall 14 is opposite to the opening of the base 10. The bottom wall 14 has a fourth limiting groove 141. The top of the fourth limiting groove 141 and the side facing the first side wall 11 are both open. In this embodiment, the length direction of the housing 100 is the Y-axis direction, the width direction is the X-axis direction, and the height direction is the Z-axis direction. The X-axis direction, Y-axis direction, and Z-axis direction are perpendicular to each other.

[0065] The base 10 also has a partition wall 15 that divides the inner cavity of the base 10 into a first region 16 and a second region 17 along the Y-axis. In this embodiment, the partition wall 15 is perpendicular to the Y-axis and extends along the X-axis. The two ends of the partition wall 15 along the X-axis are respectively provided with through holes 151. The second region 17 is closer to the third side wall 13 than the first region 16. The partition wall 15 also has a third limiting groove 152 in the second region 17. The opening of the third limiting groove 152 faces the third side wall 13. That is, the base 10 has a third limiting groove 152 with its opening facing the third side wall 13. The third limiting groove 152 extends along the Z-axis and is at the same height as the partition wall 15 along the Z-axis.

[0066] The first sidewall 11 is provided with a thickened portion 111 corresponding to the second region 17. The two ends of the thickened portion 111 extend along the Z-axis to the opening ends of the bottom wall 14 and the base 10, respectively. The length of the thickened portion 111 along the Y-axis is the same as the length of the second region 17 along the Y-axis. That is, one end of the thickened portion 111 extends along the Y-axis to the second sidewall 12. The thickened portion 111 is provided with a first through hole 112 and two first limiting grooves 113 with opposite openings. The first limiting grooves 113 are connected to the first through hole 112. The two ends of the first limiting grooves 113 along the Z-axis also extend to the opening ends of the bottom wall 14 and the base 10, respectively. The first limiting grooves 113 are provided with two groove sidewalls 1131 that are opposite to each other along the X-axis. Both groove sidewalls 1131 are perpendicular to the X-axis. The second sidewall 12 is provided with a thickened portion 121 near the third sidewall 13. The thickened portion 121 extends to the opening ends of the bottom wall 14 and the base 10 at both ends along the Z-axis direction. The thickened portion 121 is provided with a second through hole 122 and a second limiting groove 123 communicating with the second through hole 122. The second limiting groove 123 extends along the Z-axis direction and also extends to the opening ends of the bottom wall 14 and the base 10 at both ends along the Z-axis direction. The third sidewall 13 is provided with a third through hole 131 near the first area 16, and a fifth limiting groove 132 with an opening facing the first sidewall is provided near the second sidewall 12.

[0067] Referring to Figures 3-6, the first movable spring unit 200 includes a first movable spring 20 and a contact member 30. The first movable spring 20 extends along the X-axis direction, that is, its length direction is consistent with the X-axis direction. The first end of the first movable spring 20 is provided with two first movable contacts 21 that are opposite to each other, and the second end is fixedly connected to the contact member 30. As shown in Figure 3, in this embodiment, the first movable spring 20 is provided with two first movable contacts 21 on each side along the Y-axis direction; the contact member 30 includes a first stationary contact 31 fixedly connected to the first movable spring 20, a contact member body 32 extending along the X-axis direction fixedly connected to the first stationary contact 31, and a connecting terminal 33 fixedly connected to the contact member body 32. The first stationary contact 31 is adapted to be abutted in a direction perpendicular to the Z-axis direction. In this embodiment, the first stationary contact 31 is located on one side of the contact member body 32 along the Y-axis direction.

[0068] Referring to Figure 7, the first moving spring 20 and the first stationary contact 31 are both located in the second region 17 of the housing 100. Referring to Figure 6, the contact body 32 has first stationary contacts 31 on both sides along the Y-axis. In this embodiment, the first stationary contacts 31 are adapted to be abutted along the Y-axis. Referring to Figure 7, the contact body 32 passes through the first through hole 112 of the first sidewall 11 along the X-axis and is limited to the housing 100 along the Y-axis. Referring to Figure 5, the height direction of the contact body 32 is the Z-axis direction. The middle part of 32 is also provided with a second through hole 321. The bottom end of the contact body 32 is provided with an insertion part 322 that is limited and matched with the fourth limiting groove 141 along the Y-axis direction, so that the contact 30 can be supported and limited by the bottom wall 14. The connecting terminal 33 is fixedly connected to the part of the contact body 32 located outside the housing 100. In this embodiment, the connecting terminal 33 is perpendicular to the Z-axis direction and fixedly connected to the bottom end of the contact body 32. The connecting terminal 33 and the contact body 32 can be fixedly connected as one piece in a form that is not limited to integral molding.

[0069] Referring to Figures 6-7, there are two limiting members 40. The two limiting members 40 are fixed to both sides of the contact body 32 along the Y-axis. Specifically, the limiting members 40 are made of metal. Both limiting members 40 are provided with a limiting part 41 and a connecting piece 42 that is integrated with the limiting part 41. The limiting portion 41 extends along the Y-axis and is a flat plate perpendicular to the X-axis. The limiting portion 41 is adapted to insert into the first limiting groove 113 of the first sidewall 11 and form an anti-rotation fit and a limiting fit along the X-axis with the two groove sidewalls 1131. The two first limiting grooves 113 of the thickened portion 111 correspond to the two limiting portions 41 respectively; that is, the thickened portion 111 has two first limiting grooves 113 corresponding to the two limiting portions 41 respectively. It is worth noting that the anti-rotation fit between the limiting portion 41 and the first sidewall 11 can be achieved, in addition to the example provided in this embodiment, by bonding, welding, or riveting the limiting portion 41 to the first sidewall 11, or by other methods involving non-rotating surface contact (such as polygonal contact). In this embodiment, the limiting portion 41 and the first limiting groove 113 are also fixed by adhesive.

[0070] In this embodiment, the limiting part 41 is located on the side of the contact body 32 away from the first stationary contact 31 along the Y-axis direction. The connecting piece 42 is a flat piece perpendicular to the Y-axis direction, which is attached to and fixed to the side of the contact body 32 along the Y-axis direction. It should be understood that the connecting piece 42 can be fixed to the contact body 32 by welding, riveting or bonding, etc., and the connecting piece 42 can be located inside the housing 100 or on one side of the housing 100. In a preferred example, along the X-axis direction, the connecting piece 42 is connected to the side of the limiting part 41 away from the first stationary contact 31, and it is adapted to extend out of the housing 100 from the first through hole 112 of the first sidewall 11. Both connecting pieces 42 are provided with at least two first through holes 421 opened along the Y-axis direction. In Figure 4, both connecting pieces 42 are provided with three first through holes 421 opened along the Y-axis direction. The number of first through holes 421 corresponds one-to-one with the number of second through holes 321. The connecting pieces 42 are riveted to the contact body 32 by rivets that pass through the first through holes 421 and the second through holes 321. The riveting directions of at least two rivets are opposite.

[0071] Based on the above structure, in this embodiment, the limiting member 40 is fixedly connected to the contact member body 32 and is provided with a limiting part 41 that engages with the first sidewall 11 to prevent rotation, thereby limiting the swing of the contact member body 32 around an axis extending along the Z-axis. The contact member body 32 forms a limiting engagement with the housing 100 along the Y-axis through two connecting pieces 42.

[0072] Referring to Figure 8, two second moving spring units are located on both sides of the first moving spring unit 200 along the Y-axis direction. Each of them includes a second moving spring plate 51, a lead-out member 60, a second stationary contact 53, and a second moving contact 52. The second moving spring plate 51 extends along the X-axis direction, and the second stationary contact 53 and the second moving contact 52 are fixedly connected to the side facing the first moving spring unit 200. The second stationary contact 53 corresponds to the first moving contact 21, and the second moving contact 52 corresponds to the first stationary contact 31. The lead-out member 60 is fixedly connected to the second stationary contact 53 and penetrates the housing 100 and extends out of the housing 100.

[0073] The lead-out 60 that is closer to the second sidewall 12 is defined as the first lead-out 61, and the lead-out 60 that is farther away from the second sidewall 12 is defined as the second lead-out 62.

[0074] Specifically, the first lead-out member 61 is provided with a first connecting portion 611, a first lead-out body 612, and a plug-in portion 613. The first connecting portion 611 is attached to the inner surface of the second sidewall 12 and extends along the X-axis direction. The end of the first lead-out member away from the second through hole 122 is plugged into the fifth limiting groove 132 of the housing 100 to form a limiting fit along the Y-axis direction. The first lead-out body 612 is integrated with the first connecting portion 611 and passes through the second through hole 122 along the Y-axis direction and is restricted to move along the X-axis direction by the hole wall of the second through hole 122. The plug-in portion 613 is integrated with the first lead-out body 612 and is limited to fit along the Y-axis direction with the second limiting groove 123. Therefore, the first lead-out member 61 is attached to the second sidewall 12 and is limited to fit along the X-axis and Y-axis directions with the second sidewall 12. The part of the first lead-out member 61 located inside the housing 100 is limited to fit along the Y-axis direction with the housing 100.

[0075] The second lead-out member 62 is provided with a third through hole 131 that passes through the third side wall 13 along the X-axis direction and a second lead-out body 621 that is limited by the third side wall 13 along the Y-axis direction. The second lead-out body 621 is provided with a positioning part 622 at one end inside the housing 100. The positioning part 622 is inserted into and cooperates with the third limiting groove 152 and is limited along the Y-axis direction.

[0076] In this embodiment, the driving component 70 is an armature assembly. Its main body is placed in the first area 16. It is movably connected or fixed to the driving part 71 of the two through holes 151 that penetrate the partition wall 15. One of the driving parts 71 is linked to the first end of the first moving spring 20, and the other driving part 71 is connected to the end of the two second moving spring units that are provided with the second moving contact 52, so that the first moving spring unit 200 and one of the second moving spring units can be connected in parallel.

[0077] In this embodiment, when assembling the first moving spring unit 200, the second end of the first moving spring 20 is first fixed to the contact member 30, and then the connecting pieces 42 of the two limiting members 40 are riveted to both sides of the contact member body 32 along the Y-axis direction, thus forming the structure shown in Figure 3. The structure shown in Figure 3 is placed into the base along the Z-axis direction, and the insertion part 322 of the contact member body 32 is inserted into the fourth limiting groove 141, so that the contact member body 32 and the connecting piece 42 pass through the first through hole 112. Thus, the contact member body 32 abuts against both sides of the first through hole 112 through the two connecting pieces 42 to achieve a limiting fit with the housing 100 along the Y-axis direction. 1. Insert the first spring unit into the corresponding first limiting groove 113 along the Z-axis direction; when installing the second spring unit, place the second spring unit corresponding to the first lead-out member 61 into the base 10 near the second side wall 11, insert one end of the first connecting part 611 into the fifth limiting groove 132 along the Z-axis direction and abut against the inner surface of the second side wall 12, insert the insertion part 613 into the second limiting groove 123 along the Z-axis direction, and the first lead-out body 612 passes through the second through hole 122; place the second spring unit corresponding to the second lead-out member 62 into the base 10, insert the second lead-out body 621 through the third through hole 131, and insert the positioning part 622 into the third limiting groove 152.

[0078] When the relay in this embodiment is in operation, referring to Figure 8, when the driving member 70 rotates clockwise, the driving part 71 on the left causes the first moving contact 21 of the first moving spring unit 200 to contact the second stationary contact 53 away from the second sidewall 12. The driving part 71 on the right causes the second moving contact 52 away from the second sidewall 12 to contact the corresponding first stationary contact 31, and also causes the second moving contact 52 near the second sidewall 12 to move away from the corresponding first stationary contact 31. This causes the first moving spring unit 200 to contact the contact away from the second sidewall 12. The second moving spring units are connected in parallel; when the drive member 70 rotates counterclockwise, the drive part 71 on the left causes the first moving contact 21 of the first moving spring unit 200 to abut against the second stationary contact 53 near the second side wall 12, and the drive part 71 on the right causes the second moving contact 52 near the second side wall 12 to abut against the corresponding first stationary contact 31, and causes the second moving contact 52 away from the second side wall 12 to move away from the corresponding first stationary contact 31, thereby making the first moving spring unit 200 and the second moving spring unit near the second side wall 12 connected in parallel.

[0079] In this embodiment, the contact body 32 and the housing 100 are limited and engaged along the Y-axis. The limiting member 40 is fixed to the contact body 32 and is provided with a limiting part 41 that engages with the first side wall 11 to prevent rotation, thereby limiting the contact body 32 from swinging around the axis extending along the Z-axis. Therefore, when the first stationary contact 31 is subjected to abutment or force, or when the first stationary contact 31 and the second moving contact 52 are separated, or when the connecting terminal 33 is connected to the load, the first side wall 11 can prevent the contact body 32 from swinging around the axis extending along the Z-axis by engaging with the limiting part 41 to prevent rotation. This prevents the contact body 32 from being displaced in the contact direction between the moving contact and the first stationary contact 31, ensuring the stability of the contact body 30 and ensuring the good working performance of the relay. Furthermore, the limiting member 40 and the contact member 30 are two independent components. On the one hand, this facilitates manufacturing and reduces the consumption of expensive materials. On the other hand, the independently designed limiting member 40 allows for a larger limiting portion 41 size based on actual strength requirements. If the limiting member 40 and the contact member body 32 were an integral structure, the limited thickness of the contact member 30 would restrict the size of the limiting portion 41 formed by processing it, such as stamping, to prevent rotational engagement with the first sidewall 11. This would make it difficult to achieve an effective limiting engagement, and the first sidewall 11 might be damaged due to excessive contact pressure caused by an excessively small limiting portion 41. In addition, in this technical solution, the limiting portion 41 only engages with the first sidewall 11 to prevent rotational engagement. Therefore, only the structure of the existing first sidewall 11 of the relay needs to be improved, and the limiting member 40 and the contact member 30 need to be fixed together. The modification to the entire relay is minimal, and the relay assembly process does not require any changes. Thus, stable operation of the relay is ensured with minimal modifications, resulting in low cost.

[0080] In this embodiment, the limiting part 41 extends along the Y-axis direction, and the first sidewall 11 is perpendicular to the X-axis direction. That is, the limiting part 41 is parallel to the first sidewall 11. Compared with the limiting part 41 extending along the X-axis direction or other directions perpendicular to the Z-axis direction, this reduces the space occupied by the limiting part 41 in the X-axis direction and avoids interference between the limiting part 41 and the installation and operation of the first stationary contact 31 or other components. It also simplifies the connection structure between the limiting member 40 and the contact body 32. Therefore, this embodiment does not require increasing the space of the housing 100 along the X-axis direction, resulting in a smaller relay size.

[0081] In this embodiment, the first sidewall 11 is provided with a thickened portion 111, and the thickened portion 111 is provided with a first limiting groove 113. The first limiting groove 113 is provided with two groove sidewalls 1131 that are opposite to each other along the X-axis direction. The limiting portion 41 is adapted to be inserted into the first limiting groove 113 and form an anti-rotation fit and a limiting fit along the X-axis direction with the two groove sidewalls 1131. Therefore, the limitation of the limiting portion 41 by the two groove sidewalls 1131 can prevent the contact member 30 from swinging around the axis extending along the Z-axis direction when the second moving contact 52 and the first stationary contact 31 are in contact or when the connecting terminal 33 is connected to the load, thereby helping to ensure the stability of the contact member 30. The thickened portion 111 also enhances the strength of the first sidewall 11 and the supporting force for the limiting portion 41, thereby further ensuring the stable fit between the limiting portion 41 and the first sidewall 11.

[0082] In this embodiment, the limiting part 41 is a flat plate perpendicular to the X-axis direction; the two groove sidewalls 1131 are perpendicular to the X-axis direction, which helps to reduce the space occupied by the limiting part 41 and the thickened part 111 in the X-axis direction, avoids increasing the space occupied by the relay in the X-axis direction, and the structure of the limiting part 41 and the first limiting groove 113 is simple and easy to form and assemble.

[0083] In this embodiment, the limiting part 41 and the first limiting groove 113 are also glued together with an adhesive. When the limiting part 41 and the groove side wall 1131 of the first limiting groove 113 are glued together, the bonding area is large, which is conducive to further improving the connection stability between the limiting part 41 and the first side wall 11, and to a certain extent increasing the deformation resistance of the first side wall 11. The bonding operation is convenient and easy to implement.

[0084] In this embodiment, the height direction of the contact body 32 is the Z-axis direction. The groove sidewall 1131 of the first limiting groove 113 extends along the Z-axis direction to the opening end of the base 10. This fully utilizes the space of the base 10 in the Z-axis direction to increase the contact area between the limiting part 41 and the two groove sidewalls 1131 of the first limiting groove 113, thereby increasing the anti-rotation force of the limiting part 41 and the first sidewall 11, and further ensuring the stability of the position of the contact 30. The groove sidewall 1131 of the first limiting groove 113 extends to the opening end of the base 10. That is, the first limiting groove 113 opens at the opening end of the base 10. During assembly, the assembly direction of the limiting part 41 and the contact 30 is consistent, which is beneficial to automated assembly and improves production efficiency. It also makes the groove sidewalls 1131 on both sides of the first limiting groove 113 have a larger area for cooperating with the limiting part 41, so as to further improve the anti-rotation cooperation capability.

[0085] In this embodiment, the limiting member 40 is also provided with a connecting piece 42 that is integrally connected with the limiting part 41. The connecting piece 42 is a flat piece perpendicular to the Y-axis direction. It is attached to and fixed to one side of the contact body 32 along the Y-axis direction. Compared with the solution of fixing the connecting piece 42 to other parts of the contact body 32, the contact area between the connecting piece 42 and the contact body 32 is larger, which is more conducive to the anti-rotation transmission of the limiting part 41 to the contact body 32, and the structure of the contact member 30 is more stable.

[0086] In this embodiment, the connecting piece 42 is adapted to extend out of the housing 100 from the first side wall 11 along the Y-axis direction, which avoids the connecting piece 42 occupying too much internal space of the housing 100, and ensures that the area of ​​the connecting piece 42 and the contact body 32 can be made larger to meet the better requirements of the fixing strength, so that the anti-rotation effect of the connecting piece 42 is better converted into the anti-rotation effect of the contact body 32.

[0087] In this embodiment, the first stationary contact 31 is adapted to be abutted along the Y-axis direction. The limiting part 41 is correspondingly provided with the first stationary contact 31 and is located on the side of the contact body 32 away from the corresponding first stationary contact 31 along the Y-axis direction. Therefore, when the first stationary contact 31 is abutted along the Y-axis direction, the limiting part 41 can provide a force opposite to the abutting force to the contact body 32, thereby improving the stability of the contact 30.

[0088] In this embodiment, the contact body 32 is provided with first stationary contact points 31 on both sides along the Y-axis direction, and there are two limiting members 40. The two limiting members 40 are fixedly connected to the two sides of the contact body 32 along the Y-axis direction respectively. The thickened part 111 is provided with two first limiting grooves 113 corresponding to the two limiting parts 41 respectively, which further increases the anti-rotation force between the contact 30 and the first sidewall 11, thereby improving the connection stability between the contact 30 and the housing 100.

[0089] In this embodiment, the first through hole 421 and the second through hole 321 are coaxial. The connecting piece 42 is riveted to the contact body 32 by a rivet that passes through the first through hole 421 and the second through hole 321, so that the rivet can rivet the contact body 32 and the two connecting pieces 42 at the same time, making the riveting operation convenient and time-saving.

[0090] In this embodiment, at least two rivets are riveted in opposite directions. Compared to the riveting directions of all rivets being the same, this allows the connecting piece 42 and the contact body 32 to be connected by rivets on both sides simultaneously, resulting in a more uniform mechanical distribution and stronger connection force. This makes the connection structure between the connecting piece 42 and the contact body 32 more stable and thus better able to resist stress from different directions.

[0091] In this embodiment, the limiting member 40 is made of metal, which is strong, not easily deformed, and has a good limiting effect. It can help the contact member 30 dissipate heat and reduce temperature rise.

[0092] In this embodiment, the bottom wall 14 is provided with a fourth limiting groove 141, and the contact body 32 is provided with an insertion part 322 that is limited and engaged with the fourth limiting groove 141 along the Y-axis direction. This makes full use of the internal space of the housing 100 and further enhances the strength of the static contact mounting side of the contact 30. The thickened part 111 extends to the bottom wall 14 along the Z-axis direction, further increasing the strength of the thickened part 111.

[0093] In this embodiment, the first moving spring unit 200 formed by the first moving spring 20 and the contact member 30 can be selectively connected in parallel with one of the second moving spring units, thereby diversifying the functions of the relay.

[0094] In this embodiment, the first lead-out member 61 is abutted against and limited to the second sidewall 12 along the Y-axis. The portion of the first lead-out member 61 located inside the housing 100 is limited to the housing 100 along the Y-axis, making full use of the internal space of the housing 100. This results in high stability for the first lead-out member 61, which in turn ensures high stability for the second stationary contact 53, and guarantees that the relay's contact pressure, contact gap, relay holding force, operating voltage, and reset voltage are not affected. The thickened portion 111 extends along the Y-axis to the second sidewall 12, further increasing the strength of the first sidewall 11.

[0095] In this embodiment, the thickened portion 121 enhances the strength of the second sidewall 12 and its supporting force on the first lead-out body 612. The thickened portion 121 is provided with a second through hole 122, and the second limiting groove 123 communicates with the second through hole 122, making the wall thickness thicker at the location where the first lead-out body 612 penetrates the second sidewall 12, thereby improving the deformation resistance of the second sidewall 12 and contributing to its structural stability. Furthermore, compared to the second limiting groove 123 being formed at other locations outside the second sidewall 12, it also helps to reduce interference with other components. The first lead-out body 612 and the first connecting portion... The first lead-out body 612 is integrated with the second side wall 12, and the plug-in part 613 is integrated with the first lead-out body 612, which is convenient to process. The first connecting part 611 is close to the second side wall 12, and its end away from the second through hole 122 is limited to the housing 100 along the Y-axis direction. The plug-in part 613 is limited to the second limiting groove 123 along the Y-axis direction, so that a large anti-rotation force is formed between the first lead-out part 61 and the second side wall 12, and the structure is stable. Moreover, since the first connecting part 611 is close to the second side wall 12, even if the contact area between the plug-in part 613 and the second limiting groove 123 is small, it does not have a significant impact on the overall anti-rotation performance of the first lead-out part 61.

[0096] In this embodiment, the second lead-out body 621 penetrates the third sidewall 13 along the X-axis direction, and the positioning part 622 and the third limiting groove 152 are matched in a limiting manner along the Y-axis direction, so that the two ends of the second lead-out member 62 located in the housing 100 are limited, and the structure is stable and not easy to shake. After such a setting, the contact member 30 of the first moving spring unit 200 and the lead-out members 60 of the two second moving spring units are respectively led out from different sidewalls of the housing 100, which not only do not interfere with each other, but also ensure the strength of the housing 100.

[0097] The foregoing description of the specifications and embodiments is intended to explain the scope of protection of this invention, but does not constitute a limitation on the scope of protection of this invention. Modifications, equivalent substitutions, or other improvements to the embodiments of this invention or a portion thereof that can be obtained by those skilled in the art through logical analysis, reasoning, or limited experimentation, based on the teachings of this invention or the foregoing embodiments, in conjunction with common knowledge, general technical knowledge, and / or existing technology, should all be included within the scope of protection of this invention.

Claims

1. A relay, characterized in that, include The housing (100) has a first sidewall (11); A contact element (30) comprising a contact element body (32); the contact element body (32) extending through a first sidewall (11) along the X-axis direction to engage with the housing (100) along the Y-axis direction; and A limiting member (40) is fixed to the contact body (32) and has a limiting part (41) that cooperates with the first side wall (11) to restrict the contact body (32) from swinging about an axis extending along the Z-axis direction, wherein the X-axis direction, the Y-axis direction and the Z-axis direction are perpendicular to each other.

2. A relay as described in claim 1, characterized in that, The first sidewall (11) is perpendicular to the X-axis direction, and the limiting part (41) extends along the Y-axis direction.

3. A relay as described in claim 2, characterized in that, The first sidewall (11) is provided with a thickened portion (111), the thickened portion (111) is provided with a first limiting groove (113), the first limiting groove (113) is provided with two groove sidewalls (1131) that are opposite to each other along the X-axis direction; the limiting portion (41) is adapted to be inserted into the first limiting groove (113) and form an anti-rotation fit and a limiting fit along the X-axis direction with the two groove sidewalls (1131).

4. A relay as described in claim 3, characterized in that, The limiting part (41) is a flat plate perpendicular to the X-axis direction; both groove sidewalls (1131) are perpendicular to the X-axis direction.

5. A relay as described in claim 3, characterized in that, The limiting part (41) and the first limiting groove (113) are also glued together by adhesive.

6. A relay as described in claim 4, characterized in that, The housing (100) includes a base (10) with one end open along the Z-axis direction, and the first sidewall (11) is disposed on the base (10); the height direction of the contact body (32) is the Z-axis direction, and the first limiting groove (113) extends along the Z-axis direction to the open end of the base (10).

7. A relay as described in claim 3, characterized in that, The limiting member (40) is also provided with a connecting piece (42) integrated with the limiting part (41). The connecting piece (42) is a flat piece perpendicular to the Y-axis direction, and it is attached to and fixed to one side of the contact body (32) along the Y-axis direction.

8. A relay as described in claim 7, characterized in that, Along the X-axis, the connecting piece (42) is adapted to extend out of the housing (100) from the first sidewall (11).

9. A relay as described in claim 8, characterized in that, The number of the limiting members (40) is two, and the thickened part (111) is provided with two first limiting grooves (113) corresponding to the two limiting parts (41) respectively; the two limiting members (40) are respectively fixed to the two sides of the contact body (32) along the Y-axis direction; the contact body (32) forms a limiting fit with the housing (100) along the Y-axis direction through the two connecting pieces (42).

10. A relay as described in claim 7, characterized in that, The contact (30) is further provided with a first stationary contact (31) and a connecting terminal (33) fixedly connected to the contact body (32). The first stationary contact (31) is located inside the housing (100) and on one side of the contact body (32) along the Y-axis direction, and is adapted to be abutted along the Y-axis direction. The connecting terminal (33) is fixedly connected to the part of the contact body (32) located outside the housing (100). The limiting part (41) is located on the side of the contact body (32) away from the first stationary contact (31) along the Y-axis direction.

11. A relay as described in claim 10, characterized in that, The contact body (32) is provided with the first stationary contact (31) on both sides along the Y-axis direction; there are two limiting members (40), and the two limiting members (40) are respectively fixed to the two sides of the contact body (32) along the Y-axis direction; the thickened part (111) is provided with two first limiting grooves (113) corresponding to the two limiting parts (41).

12. A relay as described in claim 9, characterized in that, Both connecting pieces (42) are provided with at least two first through holes (421) opened along the Y-axis direction. The contact body (32) is provided with a number of second through holes (321) that are equal to and correspond one-to-one with the first through holes (421). The connecting pieces (42) are riveted to the contact body (32) by rivets that pass through the first through holes (421) and the second through holes (321).

13. A relay as described in claim 12, characterized in that, At least two rivets are riveted in opposite directions.

14. A relay as described in any one of claims 1-13, characterized in that, The limiting member (40) is made of metal.

15. A relay as described in claim 6, characterized in that, The base (10) further includes a bottom wall (14) perpendicular to the Z-axis direction and adapted to support the contact (30). The bottom wall (14) is provided with a fourth limiting groove (141). The contact body (32) includes an insertion part (322) that is limited and engaged with the fourth limiting groove (141) along the Y-axis direction. The thickened part (111) extends to the bottom wall (14) along the Z-axis direction.

16. A relay as described in claim 11, characterized in that, It also includes a first movable spring (20) and two second movable spring units; the first movable spring (20) extends along the X-axis direction, and its first end in the length direction is provided with two first movable contacts (21) that are opposite to each other, and its second end is fixedly connected to two first stationary contacts (31) and forms a first movable spring unit (200) with the contact member (30); the two second movable spring units are respectively located on both sides of the first movable spring unit (200) along the Y-axis direction; each second movable spring unit includes a second movable spring (51), an extender (60), and a second movable spring (51). A stationary contact (53) and a second moving contact (52), wherein the second moving spring (51) extends along the X-axis direction and is fixedly connected to the second stationary contact (53) and the second moving contact (52) on the side facing the first moving spring unit (200). The second stationary contact (53) corresponds to the first moving contact (21), and the second moving contact (52) corresponds to the first stationary contact (31). The lead-out member (60) is fixedly connected to the second stationary contact (53) and penetrates the housing (100) and extends out of the housing (100).

17. A relay as described in claim 16, characterized in that, The housing (100) is also provided with a second sidewall (12) perpendicular to the Y-axis and adjacent to the first sidewall (11); the lead-out member (60) closer to the second sidewall (12) is defined as the first lead-out member (61), and the lead-out member (60) further away from the second sidewall (12) is defined as the second lead-out member (62); the first lead-out member (61) is close to the second sidewall (12) and is limitedly connected to the second sidewall (12) along the X-axis and Y-axis directions, and the part of the first lead-out member (61) located inside the housing (100) is limitedly connected to the housing (100) along the Y-axis direction; the thickened part (111) extends to the second sidewall (12) along the Y-axis direction.

18. A relay as described in claim 17, characterized in that, The second sidewall (12) is provided with a thickened portion (121), the thickened portion (121) is provided with a second through hole (122) penetrating the thickened portion (121) along the Y-axis direction and a second limiting groove (123) communicating with the second through hole (122). The first lead-out member (61) includes a first connecting portion (611), a first lead-out body (612) integrally connected to the first connecting portion (611), and a plug-in portion (613) integrally connected to the first lead-out body (612). The first connecting part (611) abuts against the inner surface of the second sidewall (12) and extends along the X-axis direction. The end of the first connecting part (611) away from the second through hole (122) is limited to the housing (100) along the Y-axis direction. The first lead-out body (612) passes through the second through hole (122) along the Y-axis direction and is restricted to move along the X-axis direction by the hole wall of the second through hole (122). The plug-in part (613) is limited to the second limiting groove (123) along the Y-axis direction.

19. A relay as described in claim 18, characterized in that, The base (10) is also provided with a third sidewall (13) that is parallel to the first sidewall (11) and adjacent to the second sidewall (12); the base (10) is provided with a third limiting groove (152) with an opening facing the third sidewall (13); the second lead-out member (62) includes a second lead-out body (621) that passes through the third sidewall (13) along the X-axis and is limited by the third sidewall (13) along the Y-axis; the second lead-out body (621) is provided with a positioning part (622) at one end inside the housing (100); the positioning part (622) and the third limiting groove (152) are limited and engaged along the Y-axis.

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