A large throw multi-contact relay

Abstract

The utility model discloses a big open distance multi-contact relay, through with four contact parts two two group along Y direction respectively arranged in the opposite sides of magnetic circuit part, the two contact parts of being located the same side along X direction interval arrangement of magnetic circuit part, make the two contact parts between the same side of pusher, make the overall volume of relay reduce, can ensure that each contact part between, contact part and magnetic circuit part between all have greater interval and insulation distance, simultaneously, adopt the pusher of swing type, utilize the waist of pusher first connecting portion and the waist connection of moving spring piece, when magnetic circuit part drive pusher swing and make the other end of pusher produce drive stroke, the stroke through the effect of pusher reduction after, will pass through the effect of moving spring piece again, thereby make the open distance between moving and static contact can be more close drive stroke, thereby increase the creepage distance between moving and static contact, and the safety, reliability is higher.

Description

Technical Field

[0001] This utility model relates to the field of relay technology, and in particular to a large-pitch multi-contact relay. Background Technology

[0002] To meet the demands of high load and miniaturization in multi-contact relays, as exemplified by Chinese patent CN2025101554421, a sliding pusher is employed. Four contact parts are arranged in pairs on opposite sides of the magnetic circuit section. The two contact parts on the same side are spaced apart along the sliding direction of the pusher, ensuring that the arrangement direction of the contact parts on different sides is perpendicular to the sliding direction of the pusher, while the arrangement direction of the two contact parts on the same side is the same as the sliding direction of the pusher. This utilizes the space on both sides of the base thickness to arrange the contact parts, reducing the overall size of the relay while ensuring a large gap and insulation distance between each contact part and between the contact parts and the magnetic circuit section. This avoids mutual interference between different contact parts (such as temperature rise effects and arc creepage). Consequently, the overall performance of the relay is improved, with increased reliability and service life. Furthermore, it facilitates miniaturization and is suitable for switching electrical equipment in high-altitude areas.

[0003] However, in the driving and engagement scheme between the pusher and the moving spring, a double-layered plate is added to the free end of the moving spring and embedded in the slot of the pusher. When the pusher slides, the double-layered plate drives the moving contact and the stationary contact to connect or disconnect. Since the distance between the double-layered plate and the fixed end of the moving spring is greater than the distance between the moving contact and the fixed end of the moving spring, that is, the swing radius of the double-layered plate is greater than the swing radius of the moving contact, when the armature assembly drives the pusher to slide, the horizontal movement distance of the moving contact will be less than the horizontal movement distance of the double-layered plate (for example, reduced to less than 80%) due to the ratio of the swing radius of the double-layered plate to the swing radius of the moving contact. This prevents the opening distance between the moving and stationary contacts from being maximized. Moreover, the need to use a double-layered plate results in more parts and higher costs. Utility Model Content

[0004] The purpose of this utility model is to disclose a large-pitch multi-contact relay that, while meeting the requirements of small size and large insulation distance, can also increase the pitch between moving and stationary contacts, resulting in better overall performance and lower cost.

[0005] To achieve the above objectives, the present invention discloses a large-aperture multi-contact relay, comprising:

[0006] Base;

[0007] The magnetic circuit is located on the base;

[0008] At least four contact parts are arranged in pairs along the Y-direction on opposite sides of the magnetic circuit section. Two contact parts on the same side of the magnetic circuit section are spaced apart along the X-direction. Each contact part includes a stationary contact, a moving contact, and a moving spring. The fixed end of the moving spring has a moving contact lead-out pin, and the free end of the moving spring has a moving contact. The X-direction is perpendicular to the Y-direction.

[0009] Two pushers are arranged on opposite sides of the magnetic circuit section along the Y direction, and the pushers are located between two contact parts on the same side. One end of the pusher is rotatably mounted on the base around the Y direction, and the other end of the pusher is connected to the magnetic circuit section. The waist of the pusher is provided with a first connecting part on each side. Different first connecting parts are connected to the waist of different moving springs. When the magnetic circuit section drives the pusher to swing, the pusher drives the moving spring to move through the first connecting part, thereby making the moving contact and the stationary contact connect or disconnect.

[0010] As an optional implementation, the pusher includes a pusher body and two extension arms. One end of the pusher body in the length direction is provided with a pivot part for pivotal connection with the base, and the other end of the pusher body in the length direction is provided with a second connecting part for connection with the magnetic circuit part. The two extension arms are connected to both sides of the waist of the pusher body, and each extension arm is provided with a first connecting part.

[0011] As an alternative implementation, the extension arm is in the shape of an arc with the pivot axis of the pusher as the center.

[0012] As an optional implementation, the magnetic circuit portion includes an armature assembly that is rotatably disposed about the Y-axis. The armature assembly is provided with a toggle block that is offset from its rotation axis. The second connecting portion includes a drive groove that opens along the Z-direction. The Z-direction is perpendicular to the X-direction and perpendicular to the Y-direction. When the armature assembly is assembled to the base from top to bottom along the Z-direction, the end of the toggle block is embedded in the drive groove.

[0013] As an alternative implementation, if the pivot, the first connecting part, and the second connecting part are arranged in ascending order along the Z direction, the position of the pivot axis is lower than the position of the bending deformation of the fixed end of the moving spring, the position of the moving contact is higher than the position of the first connecting part, and the position of the moving contact is lower than the position of the second connecting part.

[0014] As an optional implementation, the main body, extension arm, pivot, first connecting part, and second connecting part are integrally formed.

[0015] As an optional implementation, the first connecting part includes two spaced-apart limiting posts, which are located opposite each other on both sides of the waist of the moving spring. When the pusher swings, at least one limiting post abuts against the moving spring to drive the moving spring to move.

[0016] As an optional implementation, the gap between the two limiting posts is greater than the thickness of the waist of the moving spring, and the two limiting posts are arranged in an arc with the swing axis of the pusher as the center.

[0017] As an optional implementation, the limiting post is circular in shape.

[0018] As an alternative implementation, the limiting post extends away from the magnetic circuit portion along the Y direction.

[0019] As an optional implementation, the two pushers are integrally formed, or the two pushers are independently configured.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0021] The relay provided by this utility model arranges four contact parts in pairs along the Y direction on opposite sides of the magnetic circuit part, and two contact parts on the same side of the magnetic circuit part are arranged at intervals along the X direction. The pusher is located between the two contact parts on the same side, which reduces the overall size of the relay while ensuring a large gap and insulation distance between each contact part and between the contact part and the magnetic circuit part. At the same time, the pusher is a swing-type pusher, which is connected to the waist of the moving spring by the first connecting part of the waist of the pusher. When the magnetic circuit part drives the pusher to swing, so that the other end of the pusher generates a driving stroke, the stroke is reduced by the action of the pusher and amplified by the action of the moving spring. This makes the opening distance between the moving and stationary contacts closer to the driving stroke, thereby increasing the creepage distance between the moving and stationary contacts and improving safety and reliability. Attached Figure Description

[0022] 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.

[0023] Figure 1 This is a three-dimensional structural diagram of the relay according to an embodiment of the present utility model.

[0024] Figure 2 This is an exploded view of the relay according to an embodiment of the present invention.

[0025] Figure 3 This is a front view structural diagram of the relay according to an embodiment of the present utility model.

[0026] Figure 4 for Figure 3 The diagram shows a cross-sectional view of section AA.

[0027] Figure 5 This is a three-dimensional structural diagram of the pusher component according to an embodiment of the present utility model.

[0028] Figure 6 This is a schematic diagram illustrating the swing principle of the pusher and the moving spring in an embodiment of this utility model.

[0029] Explanation of key figure labels:

[0030] 1. Base; 11. Mounting slot; 2. Magnetic circuit part; 21. Electromagnet assembly; 22. Armature assembly; 221. Rotating shaft; 222. Actuating block; 3. Pushing component; 31. Pushing body; 32. Extension arm; 33. Pivoting part; 34. First connecting part; 341. Limiting post; 35. Second connecting part; 351. Drive slot; 4. Contact part; 41. Moving contact assembly; 411. Moving contact; 412. Moving spring; 413. Moving contact lead-out foot; 42. Stationary contact assembly; 421. Stationary contact; 422. Stationary contact lead-out foot. Detailed Implementation

[0031] 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.

[0032] 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.

[0033] 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.

[0034] 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.

[0035] 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.

[0036] The technical solution of this utility model will be further described below with reference to the embodiments and accompanying drawings.

[0037] See Figures 1 to 4 This utility model discloses a large-pitch multi-contact relay, which can be specifically a magnetic latching relay, including: a base 1, a magnetic circuit part 2, two pushers 3, and four contact parts 4. The magnetic circuit part 2, pushers 3, and contact parts 4 are all disposed on the base 1. The pushers 3 are rotatably disposed, and the magnetic circuit part 2 is driven to be connected to the pushers 3. Each pusher 3 is driven to be connected to two contact parts 4 respectively. The magnetic circuit part 2 drives the pushers 3 to swing relative to the base 1, and the pushers 3 drive the contact parts 4 to be connected or disconnected.

[0038] Based on the principle of full disclosure, as an optional example of the magnetic circuit part 2, the base 1 is provided with a mounting groove 11 in the middle. The mounting groove 11 is generally rectangular and open at one end along the Z direction. The magnetic circuit part 2 includes an electromagnet assembly 21 and an armature assembly 22. The electromagnet assembly 21 is fixedly installed in the mounting groove 11. In this example, the armature assembly 22 adopts a rotary structure. The armature assembly 22 is rotatably disposed in the mounting groove 11 about the Y-axis. Specifically, the armature assembly 22 is provided with a toggle block 222 and a rotating shaft 221. The toggle block 222 is offset from the axis of the rotating shaft 221 (that is, the rotation axis of the armature assembly 22). The armature assembly 22 is pivotally connected to the mounting groove 11 through the rotating shaft 221. The specific installation scheme of the armature assembly 22 on the mounting groove 11 can be referred to the description in the prior art CN2025101554421. The toggle block 222 is connected to the pusher 3, thereby driving the pusher 3 to swing when the armature assembly 22 rotates.

[0039] Understandably, in other examples, the armature assembly 22 may also adopt a sliding structure, which can drive the pusher 3 to swing when the armature assembly 22 slides. Since the innovation of this application does not lie in the specific structure of the magnetic circuit part 2, it will not be elaborated further.

[0040] In this embodiment, four contact portions 4 are arranged in pairs along the Y direction on opposite sides of the magnetic circuit portion 2. Two contact portions 4 located on the same side of the magnetic circuit portion 2 are arranged at intervals along the X direction. The contact portion 4 includes a stationary contact assembly 42 and a moving contact assembly 41. The stationary contact assembly 42 and the moving contact assembly 41 are arranged along the X direction. The stationary contact assembly 42 includes a stationary contact point 421 and a stationary contact lead-out foot 422. One end of the stationary contact lead-out foot 422 extends out of the bottom of the base 1, and the stationary contact point 421 is located at the other end of the stationary contact lead-out foot 422. The moving contact assembly 41 includes a moving contact point 411, a moving spring 412, and a moving contact lead-out foot 413. The moving spring 412 extends substantially along the Z direction (it may have a certain tilt angle and / or bend). One end of the moving contact lead-out foot 413 extends out of the bottom of the base 1. The fixed end of the moving spring 412 is connected to the other end of the moving contact lead-out foot 413, and the moving contact point 411 is located at the free end of the moving spring 412.

[0041] Two pushers 3 are arranged on opposite sides of the magnetic circuit section 2 along the Y direction, and the pushers 3 are located between two contact portions 4 on the same side. The two pushers 3 can be integrally formed or independently set. In this embodiment, two independently set pushers 3 are described. One end of the pusher 3 is rotatably set on the base 1 around the Y direction, and the other end of the pusher 3 is connected to the magnetic circuit section 2. The waist of the pusher 3 is provided with first connecting portions 34 on both sides. Different first connecting portions 34 are connected to the waist of different moving springs 412. When the magnetic circuit section 2 drives the pusher 3 to swing, the pusher 3 drives the moving springs 412 to move through the first connecting portions 34, thereby making the moving contact 411 and the stationary contact 421 connected or disconnected.

[0042] See Figure 2Preferably, the pusher 3 includes a pusher body 31, two extending arms 32, a pivot part 33, two first connecting parts 34, and a second connecting part 35. The pusher body 31 extends substantially along the Z direction. The pivot part 33 is located at one end of the pusher body 31 along its length, and the second connecting part 35 is located at the other end of the pusher body 31 along its length. The pivot part 33 is used to pivotally connect with the base 1, and the second connecting part 35 is used to connect with the magnetic circuit part 2, specifically with the actuating block 222. To facilitate the connection between the second connecting part 35 and the actuating block 222, the following steps are taken: The installation of block 222 involves a second connecting part 35 including a drive groove 351 opening along the Z direction. When the armature assembly 33 is assembled to the base 1 from top to bottom along the Z direction, the end of the actuating block 222 is embedded in the drive groove 351. Two extension arms 32 are connected to the two sides of the waist of the push body 31. Each extension arm 32 is provided with a first connecting part 34. By setting the push body 31 and the two extension arms 32, the material used in the push member 3 can be reduced, which helps to reduce weight and save costs, and avoids interference with the moving spring. More preferably, the push body 31, the two extension arms 32, the pivot part 33, the first connecting part 34, and the second connecting part 35 are integrally formed to enhance the overall strength of the push member 3.

[0043] More specifically, with Figure 3 or Figure 6 With the indicated direction as a reference, along the Z-direction, the pivot portion 33, the first connecting portion 34, and the second connecting portion 35 are arranged sequentially from low to high. Furthermore, the pivot point 33's axis is positioned below the bending deformation point of the fixed end of the moving spring 412, the moving contact 411 is positioned above the first connecting portion 34, and the moving contact 411 is positioned below the second connecting portion 35. Lowering the pivot point 33's axis position helps increase the RB / RA ratio, while controlling the moving contact 411's position to be lower than the second connecting portion 35 allows for a greater insulation distance between the moving and stationary contacts and the magnetic circuit portion 2.

[0044] In this embodiment, regarding the definition of direction, the X direction is perpendicular to the Y direction, the Z direction is perpendicular to the X direction, and the Z direction is perpendicular to the Y direction; that is, the three constitute a Cartesian coordinate system. Based on this embodiment, the relay is generally rectangular in shape. The X direction is generally the same as the length direction of the relay, the Y direction is generally the same as the thickness direction of the relay, and the Z direction is generally the same as the height direction of the relay. When the relay does not conform to the aforementioned definitions of length, width, and thickness, or when the relay is irregularly shaped, the XYZ coordinate system is specifically defined by the rotation axis direction of the pusher 3 and the position of the magnetic circuit portion 2.

[0045] Understandably, in other preferred embodiments, the stationary contact assembly 42 may also include a stationary spring, which carries the stationary contact 421 and connects to the stationary contact lead 422. It should be noted that the innovation of this application lies in the pusher 3 and the cooperation between the pusher 3 and the moving spring 412. Therefore, the specific composition of the stationary contact assembly 42 is not limited, as long as the stationary contact 421 exists.

[0046] In the two contact portions 4 located on the same side of the magnetic circuit portion 2, when the pusher 3 drives one of the contact portions 4 to conduct, the other contact portion 4 is disconnected, so that only one of the two contact portions 4 on one side is conducting. During use, only one contact portion 4 on one side is energized, which can control the temperature rise on one side and is better suited for high-load applications.

[0047] Of course, in other examples, since the distance between the two contact portions 4 on one side is relatively large, the two contact portions 4 on one side can also be set to be simultaneously turned on or off.

[0048] With the above arrangement, the four contact parts 4 are arranged in a matrix along the X and Y directions, and the pusher is located between the two contact parts on the same side. The space on both sides of the base 1 in the Y direction can be used to arrange the contact parts 4 and the pusher, which reduces the overall size of the relay. At the same time, it can ensure that there is a large gap and insulation distance between each contact part 4 and between the contact part 4 and the magnetic circuit part 2, avoiding mutual influence between different contact parts 4 (such as temperature rise, electric arc creepage, etc.), and meeting the design requirements of high load and miniaturization. At the same time, the swing-type pusher 3 is adopted. The first connecting part 34 of the waist of the pusher 3 is connected to the waist of the moving spring 412. When the magnetic circuit part 2 drives the pusher 3 to swing, so that the other end of the pusher 3 generates a driving stroke, the stroke is reduced by the action of the pusher 3 and amplified by the action of the moving spring 412. This makes the opening distance between the moving and stationary contacts closer to the driving stroke, thereby increasing the creepage distance between the moving and stationary contacts and improving safety and reliability.

[0049] For ease of understanding, let's take the aforementioned pusher structure as an example, and combine it with... Figure 6 The schematic diagram shown illustrates the principle of the oscillation, and its working principle is as follows:

[0050] In use, the magnetic circuit section 2 drives the pusher 3, causing the first connecting part 34 and the second connecting part 35 to swing around the axis of the pivot part 33. Then, the first connecting part 34 drives the moving spring 412 to move. The movement of the moving spring 412 is specifically manifested as elastic deformation swing, such as the moving contact 411 swinging around the point where the moving spring 412 and the moving contact lead-out foot 413 meet (or the preferential deformation point designed in the moving spring 412). The swing radius at the connection between the magnetic circuit section 2 and the pusher 3 is set as RA, the swing radius of the first connecting part 34 is set as RB, the swing radius of the moving contact 411 is set as RC, and the swing radius of the waist contact point in the moving spring 412 that contacts the first connecting part 34 is set as RD (the position of the waist contact point). (Since the ratio of RB / RA is variable, the RD value also changes.) Since the second connecting part 35 is located at the end of the pushing body 31 and the first connecting part 34 is located at the waist of the pushing body 31, RA > RB. Since the moving contact 411 is located at the end of the moving spring 412 and the first connecting part 34 is connected to the waist of the moving spring 412, RC > RD. When the second connecting part 35 moves along the X direction by a stroke L1, after the RB / RA ratio is reduced and then the RD / RC ratio is increased, the moving contact 411 will move along the X direction by a stroke L2. At this time, the stroke L2 is closer to the stroke L1 (it can exceed 80%, or even make L2 ≥ L1), thereby increasing the opening distance between the moving and stationary contacts.

[0051] See Figure 3 , Figure 5 and Figure 6 In this embodiment, the first connecting part 34 includes two spaced-apart limiting posts 341. The limiting posts 341 extend away from the magnetic circuit part 2 along the Y direction. The two limiting posts 341 are located opposite each other on both sides of the waist of the moving spring 412. When the pusher 3 swings, at least one limiting post 341 abuts against the moving spring 412 to drive the moving spring 412 to move. The significance of using double limiting posts 341 in conjunction with the moving spring 412 is that, since the moving spring 412 has a certain elastic restoring force, if the moving spring 412 remains basically vertical when it is not subjected to external force, when the pushing member 3 drives the moving spring 412 to deform to the left, the limiting post 341 on its right side will abut against the moving spring 412, and when the pushing member 3 drives the moving spring 412 to deform to the right, the limiting post 341 on its left side will abut against the moving spring 412. This makes it easier to press the moving contact 411 against the stationary contact 421 and form overtravel pressure, or to make it easier to pull the moving contact 411 away from the stationary contact 421 quickly to form a large opening distance.

[0052] Since the deformation swing axis of the movable spring 412 is spaced apart from the swing axis of the pusher 3, when the two limiting posts 341 are completely clamped on both sides of the waist of the movable spring 412, the clamping of the limiting posts 341 during the swing will easily cause the movable spring 412 to twist and bend at the waist contact point. Therefore, preferably, the gap between the two limiting posts 341 is greater than the thickness of the waist of the movable spring 412, so that the waist of the spring 412 is not easily or will not be bent when swinging to different positions. More preferably, the two limiting posts 341 are arranged in an arc with the swing axis of the pusher 3 as the center, and the limiting posts 341 are circular in shape, so that the cylindrical surface of the limiting posts forms a linear abutment with the waist of the movable spring 412.

[0053] In addition, in the same pusher 3, the four limit pins 341 are all on the same circumference, which is beneficial to control the consistent movement amplitude of the two moving springs 412 on both sides of the pusher 3.

[0054] See Figure 5 and Figure 6 In order to facilitate the transmission of force and realize the arc arrangement of the limiting post 341, in this embodiment, the extension arm 32 is in the shape of an arc with the swing axis of the pusher 3 (that is, the axis of the pivot 33) as the center.

[0055] 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 large-pitch multi-contact relay, characterized in that, include: Base (1); The magnetic circuit part (2) is disposed on the base (1); At least four contact portions (4) are arranged in pairs along the Y direction on opposite sides of the magnetic circuit portion (2). Two contact portions (4) on the same side of the magnetic circuit portion (2) are spaced apart along the X direction. Each contact portion (4) includes a stationary contact (421), a moving contact (411), and a moving spring (412). The fixed end of the moving spring (412) is provided with a moving contact lead-out foot (413), and the free end of the moving spring (412) is provided with the moving contact (411). The X direction is perpendicular to the Y direction. Two pushers (3) are arranged on opposite sides of the magnetic circuit part (2) along the Y direction, and the pushers (3) are located between the two contact parts (4) on the same side. One end of the pusher (3) is rotatably disposed on the base (1) around the Y direction, and the other end of the pusher (3) is connected to the magnetic circuit part (2). The waist of the pusher (3) is provided with a first connecting part (34) on both sides. Different first connecting parts (34) are connected to the waist of different moving springs (412). When the magnetic circuit part (2) drives the pusher (3) to swing, the pusher (3) drives the moving spring (412) to move through the first connecting part (34), thereby making the moving contact (411) and the stationary contact (421) connect or disconnect.

2. The large-pitch multi-contact relay according to claim 1, characterized in that, The pusher (3) includes a pusher body (31) and two extension arms (32). One end of the pusher body (31) in the length direction is provided with a pivot part (33) for pivotally connecting with the base (1). The other end of the pusher body (31) in the length direction is provided with a second connecting part (35) for connecting with the magnetic circuit part (2). The two extension arms (32) are connected to the two sides of the waist of the pusher body (31). Each extension arm (32) is provided with a first connecting part (34).

3. The large-pitch multi-contact relay according to claim 2, characterized in that, The extension arm (32) is in the shape of an arc with the swing axis of the pusher (3) as the center.

4. The large-pitch multi-contact relay according to claim 2, characterized in that, The magnetic circuit part (2) includes an armature assembly (22) that is rotatably arranged about the Y-axis. The armature assembly (22) is provided with a toggle block (222) that is offset from its rotation axis. The second connecting part (35) includes a drive groove (351) that opens along the Z-direction. The Z-direction is perpendicular to the X-direction and the Z-direction is perpendicular to the Y-direction. When the armature assembly (22) is assembled to the base (1) from top to bottom along the Z-direction, the end of the toggle block (222) is embedded in the drive groove (351).

5. The large-pitch multi-contact relay according to claim 4, characterized in that, Along the Z direction, if the pivot (33), the first connecting part (34), and the second connecting part (35) are arranged in order from low to high, then the position of the pivot (33) axis is lower than the position of the bending deformation of the fixed end of the moving spring (412), the position of the moving contact (411) is higher than the position of the first connecting part (34), and the position of the moving contact (411) is lower than the position of the second connecting part (35).

6. The large-pitch multi-contact relay according to claim 2, characterized in that, The pushing body (31), the extension arm (32), the pivot part (33), the first connecting part (34), and the second connecting part (35) are integrally formed.

7. The large-pitch multi-contact relay according to any one of claims 1 to 6, characterized in that, The first connecting part (34) includes two spaced-apart limiting posts (341), which are located opposite each other on both sides of the waist of the moving spring (412). When the pusher (3) swings, at least one of the limiting posts (341) abuts against the moving spring (412) to drive the moving spring (412) to move.

8. The large-pitch multi-contact relay according to claim 7, characterized in that, The gap between the two limiting posts (341) is greater than the thickness of the waist of the moving spring (412), and the two limiting posts (341) are arranged in an arc with the swing axis of the pusher (3) as the center.

9. The large-pitch multi-contact relay according to claim 7, characterized in that, The limiting post (341) is circular in shape.

10. The large-pitch multi-contact relay according to any one of claims 1 to 6, characterized in that, The two pushers (3) are integrally formed or the two pushers (3) are independently formed.

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