Large-open-range multi-contact relay

Abstract

Four contact parts are arranged on the two opposite sides of a magnetic circuit part in pairs in the Y direction respectively, the two contact parts located on the same side of the magnetic circuit part are arranged at intervals in the X direction, and a pushing piece is located between the two contact parts on the same side, so that the overall size of the relay is reduced, and the size of the relay is reduced. Large intervals and insulation distances between the contact parts and between the contact parts and the magnetic circuit part can be ensured; meanwhile, the swing-type pushing piece is adopted, and a first connecting part at the waist part of the pushing piece is connected with the waist part of the movable contact spring, so that when the magnetic circuit part drives the pushing piece to swing so as to enable the other end of the pushing piece to generate a driving stroke, the stroke is shortened under the action of the pushing piece and then is enlarged under the action of the movable contact spring; therefore, the opening distance between the moving contact and the static contact can be closer to the driving stroke, the creepage distance between the moving contact and the static contact is increased, and the safety and the reliability are higher.

Description

Technical Field

[0001] The present invention relates to the technical field of relays, and in particular to a large-open-distance multi-contact relay. Background Art

[0002] In order to meet the high load and miniaturization requirements of multi-contact relays, such as Chinese patent CN2025101554421, a sliding pusher is used to arrange the four contact parts in pairs on opposite sides of the magnetic circuit part, and the two contact parts on the same side are arranged at intervals along the sliding direction of the pusher, so that the arrangement direction of the contact parts on different sides is perpendicular to the sliding direction of the pusher, and the arrangement direction of the two contact parts on the same side is the same as the sliding direction of the pusher, that is, the space on both sides of the base thickness direction is used to arrange the contact parts, so that the overall volume of the relay is reduced, and it can be ensured that there is a large spacing and insulation distance between each contact part and between the contact part and the magnetic circuit part, avoiding mutual influence between different contact parts (such as temperature rise influence, arc creepage, etc.). In this way, the comprehensive performance of the relay is improved, and the reliability and service life are improved. It is also conducive to miniaturization and can be used for the disconnection of electrical equipment in high-altitude areas.

[0003] However, in the driving coordination scheme between the pusher and the movable spring, a double-layer laminate is added to the free end of the movable spring, and the double-layer laminate is embedded in the slot of the pusher. When the pusher slides, the double-layer laminate is used to drive the movable contact and the static contact to be connected or disconnected. Since the distance between the double-layer laminate and the fixed end of the movable spring is greater than the distance between the movable contact and the fixed end of the movable spring, that is, the swing radius of the double-layer laminate is greater than the swing radius of the movable contact, when the armature assembly drives the pusher to slide, the horizontal movement distance of the movable contact will be less than the horizontal movement distance of the double-layer laminate (for example, reduced to less than 80%) due to the ratio of the swing radius of the double-layer laminate to the swing radius of the movable contact, so that the opening distance of the movable and static contacts cannot be maximized. Moreover, due to the need to use a double-layer laminate, there are more parts and the cost is high. Summary of the Invention

[0004] The purpose of the present invention is to disclose a large-open-distance multi-contact relay, which can increase the opening distance between dynamic and static contacts on the basis of meeting the requirements of small volume and large insulation distance, has better comprehensive performance and low cost.

[0005] In order to achieve the above object, the present invention discloses a large-open-spacing multi-contact relay, comprising: base; The magnetic circuit part is arranged on the base; At least four contact portions are arranged in pairs on opposite sides of the magnetic circuit portion along the Y direction, and the two contact portions on the same side of the magnetic circuit portion are spaced apart along the X direction. The contact portions include a static contact, a movable contact, and a movable reed. The fixed end of the movable reed is provided with a movable contact lead, and the free end of the movable reed is provided with a movable contact. The X direction is perpendicular to the Y direction; and The two pushers are arranged on opposite sides of the magnetic circuit part along the Y direction, and the pushers are located between the two contact parts on the same side, wherein one end of the pusher is rotated around the Y direction and is set on the base, and the other end of the pusher is connected to the magnetic circuit part. First connecting parts are respectively provided on both sides of the waist of the pusher, and different first connecting parts are connected to the waists of different moving springs. When the magnetic circuit part 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 static contact conductive or disconnected.

[0006] As an optional embodiment, the pushing member includes a pushing body and two extension arms. One end of the pushing body in the length direction is provided with a pivot portion for pivotally connecting to the base, and the other end of the pushing body in the length direction is provided with a second connecting portion for connecting to the magnetic circuit portion. The two extension arms are relatively connected to both sides of the waist of the pushing body, and each extension arm is provided with a first connecting portion.

[0007] As an optional implementation, the extension arm is in an arc shape with the swing axis of the pusher as the center.

[0008] As an optional embodiment, the magnetic circuit portion includes an armature assembly rotatably arranged around the Y-axis direction, the armature assembly is provided with a toggle block deviating from its rotation axis, the second connecting portion includes a drive groove opening 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 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.

[0009] As an optional embodiment, along the Z direction, if the pivot part, the first connecting part, and the second connecting part are arranged in order from low to high, at this time, the position of the axis of the pivot part is lower than the position of the bending deformation of the fixed end of the movable spring piece, the position of the movable contact is higher than the position of the first connecting part, and the position of the movable contact is lower than the position of the second connecting part.

[0010] As an optional embodiment, the pushing body, the extension arm, the pivoting portion, the first connecting portion, and the second connecting portion are integrally formed.

[0011] As an optional embodiment, the first connecting portion includes two spaced-apart limiting columns, which are relatively located on both sides of the waist of the movable spring. When the pusher swings, at least one limiting column abuts against the movable spring to drive the movable spring to move.

[0012] As an optional implementation, the gap between the two limiting posts is greater than the thickness of the waist of the movable spring piece, and the two limiting posts are arranged in an arc shape with the swing axis of the pusher as the center of the circle.

[0013] As an optional implementation, the limiting column is circular.

[0014] As an optional implementation, the limiting post extends away from the magnetic circuit portion along the Y direction.

[0015] As an optional implementation, the two pushing members are integrally formed, or the two pushing members are independently provided.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The relay provided by the present invention reduces the overall size of the relay while ensuring greater spacing and insulation distances between the contact portions and between the contact portions and the magnetic circuit portion by arranging four contact portions in groups of two along the Y direction on opposite sides of the magnetic circuit portion, the two contact portions on the same side of the magnetic circuit portion being spaced apart along the X direction, and the pusher being located between the two contact portions on the same side. Furthermore, a swing-type pusher is employed, with a first connection portion at the waist of the pusher connected to the waist of the movable spring. When the magnetic circuit portion drives the pusher to swing, thereby generating a driving stroke at the other end of the pusher, the stroke is reduced by the action of the pusher and then amplified by the action of the movable spring, thereby making the opening distance between the moving and static contacts closer to the driving stroke, thereby increasing the creepage distance between the moving and static contacts and improving safety and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 Schematic diagram of the three-dimensional structure of a relay according to an embodiment of the present invention.

[0019] Figure 2 Schematic diagram of an explosion of a relay according to an embodiment of the present invention.

[0020] Figure 3 2 is a front structural schematic diagram of a relay according to an embodiment of the present invention.

[0021] Figure 4 for Figure 3 AA cross-sectional schematic diagram shown.

[0022] Figure 5Schematic diagram of the three-dimensional structure of the pushing member according to an embodiment of the present invention.

[0023] Figure 6 Schematic diagram of the swinging principle of the pusher and the movable spring according to an embodiment of the present invention.

[0024] Description of main reference numerals: 1. Base; 11. Mounting slot; 2. Magnetic circuit portion; 21. Electromagnet assembly; 22. Armature assembly; 221. Rotating shaft; 222. Toggle block; 3. Pushing member; 31. Pushing body; 32. Extension arm; 33. Pivoting portion; 34. First connecting portion; 341. Limiting column; 35. Second connecting portion; 351. Driving slot; 4. Contact portion; 41. Moving contact assembly; 411. Moving contact; 412. Moving reed; 413. Moving contact lead-out pin; 42. Static contact assembly; 421. Static contact; 422. Static contact lead-out pin. DETAILED DESCRIPTION

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0026] In the present invention, terms such as "upper," "lower," "left," "right," "front," "back," "top," "bottom," "inner," "outer," "center," "vertical," "horizontal," "transverse," and "longitudinal" indicate positions or locations based on the positions or locations shown in the accompanying drawings. These terms are primarily intended to better describe the present invention and its embodiments and are not intended to limit the devices, elements, or components indicated to having a specific orientation, or to being constructed or operated in a specific orientation.

[0027] Furthermore, some of the above terms may be used to express other meanings besides indicating a position or location. For example, the term "on" may also be used to indicate a dependency or connection in certain circumstances. Those skilled in the art will understand the specific meanings of these terms in the present invention based on the specific circumstances.

[0028] Furthermore, the terms "installed," "disposed," "provided with," "connected," and "connected" should be interpreted broadly. For example, they can refer to fixed connections, removable connections, or integral structures; mechanical connections or electrical connections; direct connections or indirect connections through an intermediary; or internal communication between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in the present invention based on specific circumstances.

[0029] Furthermore, the terms "first," "second," and the like are primarily used to distinguish different devices, elements, or components (which may or may not be the same in type and configuration) and are not intended to indicate or imply the relative importance or quantity of the devices, elements, or components indicated. Unless otherwise specified, "plurality" means two or more.

[0030] The technical solution of the present invention will be further described below in conjunction with embodiments and drawings.

[0031] See Figures 1 to 4 The present invention discloses a large-opening-distance multi-contact relay, which can be specifically a magnetic latching relay, including: a base 1, a magnetic circuit portion 2, two pushers 3, and four contact portions 4. The magnetic circuit portion 2, the pushers 3, and the contact portions 4 are all arranged on the base 1, wherein the pushers 3 are rotatably arranged, the magnetic circuit portion 2 is driven and connected to the pushers 3, and each pusher 3 is driven and connected to the two contact portions 4 respectively. The magnetic circuit portion 2 drives the pushers 3 to swing relative to the base 1, and the pushers 3 drive the contact portions 4 to be turned on or off.

[0032] Based on the principle of full disclosure, as an optional example of the magnetic circuit part 2, a mounting groove 11 is provided in the middle of the base 1. The mounting groove 11 is roughly 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 fixed in the mounting groove 11. The armature assembly 22 of this example adopts a rotary structure. The armature assembly 22 is rotated around the Y-axis direction and is arranged in the mounting groove 11. Specifically, the armature assembly 22 is provided with a toggle block 222 and a rotating shaft 221. The toggle block 222 deviates 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 refer to the description in the prior art CN2025101554421. The toggle block 222 is connected to the push member 3, thereby driving the push member 3 to swing when the armature assembly 22 rotates.

[0033] It is understandable that in other examples, the armature assembly 22 can 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.

[0034] In this embodiment, the four contact portions 4 are arranged in groups of two on opposite sides of the magnetic circuit portion 2 along the Y direction. The two contact portions 4 on the same side of the magnetic circuit portion 2 are spaced apart along the X direction. The contact portion 4 includes a static contact component 42 and a dynamic contact component 41. The static contact component 42 and the dynamic contact component 41 are arranged along the X direction. The static contact component 42 includes a static contact point 421 and a static contact lead-out pin 422. One end of the static contact lead-out pin 422 extends from the bottom of the base 1, and the static contact point 421 is disposed at the other end of the static contact lead-out pin 422. The dynamic contact component 41 includes a dynamic contact point 411, a dynamic reed 412, and a dynamic contact lead-out pin 413. The dynamic reed 412 extends substantially along the Z direction (and may have a certain inclination angle and / or bend). One end of the dynamic contact lead-out pin 413 extends from the bottom of the base 1. The fixed end of the dynamic reed 412 is connected to the other end of the dynamic contact lead-out pin 413. The dynamic contact point 411 is disposed at the free end of the dynamic reed 412.

[0035] The 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. The two pushers 3 can be an integrally formed setting or can be independently set. In this embodiment, two independently set pushers 3 are used for illustration; wherein, one end of the pusher 3 is rotated around the Y direction and is set on the base 1, and the other end of the pusher 3 is connected to the magnetic circuit part 2. First connecting parts 34 are respectively provided on both sides of the waist of the pusher 3, and different first connecting parts 34 are connected to the waists of different moving spring pieces 412. When the magnetic circuit part 2 drives the pusher 3 to swing, the pusher 3 drives the moving spring piece 412 to move through the first connecting part 34, thereby making the moving contact 411 and the static contact 421 conductive or disconnected.

[0036] See Figure 2Preferably, the pushing member 3 includes a pushing body 31, two extending arms 32, a pivoting portion 33, two first connecting portions 34, and a second connecting portion 35. The pushing body 31 extends substantially along the Z direction. The pivoting portion 33 is provided at one end of the pushing body 31 in the length direction. The second connecting portion 35 is provided at the other end of the pushing body 31 in the length direction. The pivoting portion 33 is used to pivot with the base 1. The second connecting portion 35 is used to connect with the magnetic circuit portion 2, specifically to connect with the toggle block 222. In order to facilitate the second connecting portion 35 to connect with the toggle To install the block 222, the second connecting portion 35 includes a drive slot 351 opening along the Z direction. When the armature assembly 33 is assembled from top to bottom along the Z direction onto the base 1, the end of the toggle block 222 engages the drive slot 351. Two extension arms 32 are connected to opposite sides of the waist of the pusher body 31. Each extension arm 32 is provided with a first connecting portion 34. The arrangement of the pusher body 31 and the two extension arms 32 can reduce the material used in the pusher 3, thereby reducing weight and cost, and avoiding interference with the movable spring. More preferably, the pusher body 31, the two extension arms 32, the pivot portion 33, the first connecting portion 34, and the second connecting portion 35 are integrally formed to enhance the overall strength of the pusher 3.

[0037] More specifically, Figure 3 or Figure 6 The illustrated direction is for reference only. Along the Z direction, the pivot portion 33, first connecting portion 34, and second connecting portion 35 are arranged in ascending order. Furthermore, the axis of the pivot portion 33 is positioned below the bent portion of the fixed end of the movable spring 412. The movable contact 411 is positioned above the first connecting portion 34, while the movable contact 411 is positioned below the second connecting portion 35. Lowering the axis of the pivot portion 33 helps increase the RB / RA ratio, while positioning the movable contact 411 below the second connecting portion 35 increases the insulation distance between the movable and static contacts and the magnetic circuit portion 2.

[0038] In this embodiment, 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, forming a Cartesian coordinate system. Given the generally rectangular shape of the relay in this embodiment, the X-direction generally corresponds to the relay's length, the Y-direction generally corresponds to the relay's thickness, and the Z-direction generally corresponds to the relay's height. When a relay does not conform to the aforementioned definitions of length, width, and thickness, or when the relay has an irregular shape, the XYZ coordinate system is specifically defined by the direction of the rotating axis of the pusher 3 and the position of the magnetic circuit portion 2.

[0039] It is understood that in other preferred embodiments, the static contact assembly 42 may further include a static spring, which supports the static contact 421 and connects to the static contact lead 422. It should be noted that the innovation of this application lies in the pusher 3 and the coordination between the pusher 3 and the dynamic spring 412. Therefore, the specific composition of the static contact assembly 42 is not limited; the presence of the static contact 421 is sufficient.

[0040] Among the two contact parts 4 located on the same side of the magnetic circuit part 2, when the pusher 3 drives one of the contact parts 4 to be turned on, the other contact part 4 is disconnected, so that only one of the two contact parts 4 on a single side is turned on. When in use, only one contact part 4 on a single side is energized, which can control the temperature rise on a single side and is better suitable for high-load usage.

[0041] 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 may also be configured to be turned on or off at the same time.

[0042] Through 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, so that the overall volume of the relay is reduced, and it can be ensured that there is a large spacing and insulation distance between each contact part 4 and between the contact part 4 and the magnetic circuit part 2, thereby avoiding mutual influence between different contact parts 4 (such as temperature rise, arc creepage, etc.), meeting the design requirements of high load and miniaturization; at the same time, a swinging pusher 3 is adopted, and the first connecting portion 34 at the waist of the pusher 3 is connected to the waist of the movable spring 412. When the magnetic circuit part 2 drives the pusher 3 to swing, thereby generating a driving stroke at the other end of the pusher 3, the stroke is reduced by the action of the pusher 3 and then amplified by the action of the movable spring 412, so that the opening distance between the moving and static contacts can be closer to the driving stroke, thereby increasing the creepage distance between the moving and static contacts, and improving safety and reliability.

[0043] For ease of understanding, based on the above-mentioned pusher structure as an example, and combined with Figure 6 The working principle of the swing principle is as follows: When in use, the magnetic circuit portion 2 drives the pusher 3, causing the first connection portion 34 and the second connection portion 35 to swing around the axis of the pivot portion 33, and then the first connection portion 34 drives the movable spring 412 to move. The movement of the movable spring 412 is specifically manifested as elastic deformation swing, such as the movable contact 411 basically swinging around the contact point between the movable spring 412 and the movable contact lead-out foot 413 (or the preferred deformation point designed in the movable spring 412). The swing radius of the connection between the magnetic circuit portion 2 and the pusher 3 is RA, the swing radius of the first connection portion 34 is RB, the swing radius of the movable contact 411 is RC, and the swing radius of the waist contact point of the movable spring 412 for contacting the first connection portion 34 is RD (the waist contact position The RD value is variable, and therefore the RD value is also variable). Since the second connecting portion 35 is located at the end of the pushing body 31 and the first connecting portion 34 is located at the waist of the pushing body 31, RA>RB. Since the movable contact 411 is located at the end of the movable reed 412 and the first connecting portion 34 is connected to the waist of the movable reed 412, RC>RD. When the second connecting portion 35 moves along the X direction by a stroke L1, after the RB / RA ratio is reduced and the RD / RC ratio is amplified, the movable contact 411 will move along the X direction by a stroke L2. At this time, the stroke L2 is closer to the stroke L1 (can exceed 80%, or even make L2 ≥ L1), thereby increasing the opening distance between the movable and static contacts.

[0044] See Figure 3 、 Figure 5 and Figure 6 In this embodiment, the first connecting portion 34 includes two spaced-apart limiting posts 341 , which extend away from the magnetic circuit portion 2 along the Y direction. The two limiting posts 341 are relatively located on both sides of the waist of the movable spring 412 . When the pusher 3 swings, at least one limiting post 341 abuts against the movable spring 412 to drive the movable spring 412 to move. The significance of using double limit columns 341 in conjunction with the movable spring piece 412 is that, since the movable spring piece 412 has a certain elastic restoring force, for example, the movable spring piece 412 remains basically vertical when not subjected to external force, when the pushing member 3 drives the movable spring piece 412 to deform to the left, the limit column 341 on its right side will abut against the movable spring piece 412, and when the pushing member 3 drives the movable spring piece 412 to deform to the right, the limit column 341 on its left side will abut against the movable spring piece 412, making it easy to press the movable contact 411 against the static contact 421 and form an overtravel pressure, or to pull the movable contact 411 quickly away from the static contact 421 to form a large opening distance.

[0045] Since the deformation swing axis of the movable spring 412 is spaced from the swing axis position of the pushing member 3, when the two limit columns 341 are completely clamped on both sides of the waist of the movable spring 412, the clamping of the limit columns 341 during the swinging process will easily cause the movable spring 412 to twist and bend at the waist contact point. Therefore, preferably, the gap between the two limit columns 341 is greater than the thickness of the waist of the movable spring 412, so that the waist of the spring 412 is not easy or will not bend when swinging to different positions. More preferably, the two limit columns 341 are arranged in an arc with the swing axis of the pushing member 3 as the center, and the limit column 341 is circular, using the cylindrical surface of the limit column to form a linear offset with the waist of the movable spring 412.

[0046] In addition, in the same pushing member 3 , the four limiting posts 341 are all on the same circumference, which is conducive to controlling the movement amplitudes of the two movable springs 412 on both sides of the pushing member 3 to be consistent.

[0047] See Figure 5 and Figure 6 In order to facilitate the transmission of force and realize the arc arrangement of the limiting column 341, in this embodiment, the extension arm 32 is in an arc shape with the swing axis of the pusher 3 (that is, the axis of the pivot portion 33) as the center.

[0048] The technical means disclosed in the solutions of the present invention are not limited to those disclosed in the above-mentioned embodiments, but also include technical solutions composed of any combination of the above-mentioned technical features. It should be noted that those skilled in the art may make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A large-spacing multi-contact relay, characterized in that: include: Base (1); A magnetic circuit portion (2) is provided on the base (1); At least four contact portions (4) are arranged in groups of two on opposite sides of the magnetic circuit portion (2) along the Y direction, and the two contact portions (4) located on the same side of the magnetic circuit portion (2) are spaced apart along the X direction. The contact portion (4) comprises a static contact (421), a movable contact (411), and a movable reed (412). The fixed end of the movable reed (412) is provided with a movable contact lead-out pin (413), and the free end of the movable reed (412) is provided with the movable contact (411). The X direction is perpendicular to the Y direction; and Two pushers (3) are arranged on opposite sides of the magnetic circuit part (2) along the Y direction, and the pusher (3) is located between the two contact parts (4) on the same side, wherein one end of the pusher (3) is arranged on the base (1) to rotate around the Y direction, and the other end of the pusher (3) is connected to the magnetic circuit part (2). First connecting parts (34) are respectively provided on both sides of the waist of the pusher (3), and different first connecting parts (34) are connected to the waists of different movable springs (412). When the magnetic circuit part (2) drives the pusher (3) to swing, the pusher (3) drives the movable spring (412) to move through the first connecting part (34), thereby making the movable contact (411) and the static contact (421) conductive or disconnected.

2. The large-spacing multi-contact relay according to claim 1, characterized in that: The pushing member (3) includes a pushing body (31) and two extending arms (32). One end of the pushing body (31) in the longitudinal direction is provided with a pivot portion (33) for pivotally connecting with the base (1). The other end of the pushing body (31) in the longitudinal direction is provided with a second connecting portion (35) for connecting with the magnetic circuit portion (2). The two extending arms (32) are relatively connected to the two sides of the waist of the pushing body (31), and each of the extending arms (32) is provided with a first connecting portion (34).

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

4. The large-spacing multi-contact relay according to claim 2, characterized in that: The magnetic circuit portion (2) includes an armature assembly (22) that is arranged to rotate around the Y-axis direction, and the armature assembly (22) is provided with a toggle block (222) that deviates from its rotation axis. The second connecting portion (35) includes a driving groove (351) that opens along the Z direction, and 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 driving groove (351).

5. The large-spacing multi-contact relay according to claim 4, characterized in that: In the Z direction, if the pivoting portion (33), the first connecting portion (34), and the second connecting portion (35) are arranged in order from low to high, at this time, the position of the axis of the pivoting portion (33) is lower than the position of the bending deformation of the fixed end of the movable spring (412), the position of the movable contact (411) is higher than the position of the first connecting portion (34), and the position of the movable contact (411) is lower than the position of the second connecting portion (35).

6. The large-spacing multi-contact relay according to claim 2, characterized in that: The pushing body (31), the extending arm (32), the pivoting portion (33), the first connecting portion (34), and the second connecting portion (35) are integrally formed.

7. The large-spacing multi-contact relay according to any one of claims 1 to 6, characterized in that: The first connecting portion (34) includes two spaced-apart limiting columns (341), the two limiting columns (341) being relatively located on both sides of the waist of the movable spring (412), and when the pushing member (3) swings, at least one of the limiting columns (341) abuts against the movable spring (412) to drive the movable spring (412) to move.

8. The large-span 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 movable spring (412), and the two limiting posts (341) are arranged in an arc shape with the swing axis of the pusher (3) as the center.

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

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

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