relay

Abstract

This utility model relates to the field of electronic control device technology, specifically a relay. The relay includes: a magnetic circuit structure comprising a yoke assembly and an armature assembly; the armature assembly is located on one side of the yoke assembly along a first direction; the yoke assembly has a first contact surface, and the armature assembly has a second contact surface, the second contact surface being selectively engaged with the first contact surface; and an elastic buffer element mounted on the magnetic circuit structure; the elastic buffer element has a first state and a second state. When the elastic buffer element is in the first state, it is located between the first and second contact surfaces to buffer the impact force when the second and first contact surfaces engage; when the elastic buffer element is in the second state, it is removed, and the second and first contact surfaces engage. This relay, by optimizing its internal structure, can reduce engagement noise, meeting user requirements for noise reduction and improving the user experience.

Description

Technical Field

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

[0002] Relays, as a common electronic control device, are widely used in automatic control circuits. They mainly consist of a control system (input circuit) and a controlled system (output circuit). Their core function is to use a small current to control the switching on and off of a larger current, thus acting as an "automatic switch".

[0003] During use, the armature inside the relay will engage with the yoke, producing a knocking sound when they do so. The engagement noise between the armature and yoke in existing relays is quite loud, failing to meet customer requirements for noise levels less than or equal to 60 dB, and severely impacting the user experience. Utility Model Content

[0004] This utility model provides a relay that, by optimizing its internal structure, can reduce engagement noise, meet user requirements for noise levels, and improve the user experience.

[0005] This utility model provides a relay, comprising: A magnetic circuit structure includes a yoke assembly and an armature assembly; the armature assembly is located on one side of the yoke assembly along a first direction, and the armature assembly is rotatable relative to the yoke assembly; the yoke assembly has a first contact surface on the side facing the armature assembly in the first direction, and the armature assembly has a second contact surface on the side facing the yoke assembly in the first direction, the second contact surface being selectively attracted to the first contact surface; An elastic buffer is mounted on the magnetic circuit structure. The elastic buffer has a first state and a second state. When the elastic buffer is in the first state, at least a portion of the elastic buffer is located between the first contact surface and the second contact surface to buffer the impact force when the second contact surface and the first contact surface are attracted together. When the elastic buffer is in the second state, the elastic buffer is moved out of the first contact surface and the second contact surface, and the second contact surface is attracted together with the first contact surface.

[0006] According to some embodiments of the present invention, the elastic buffer is installed on the armature assembly; when the elastic buffer is in the first state, the elastic buffer is used to elastically abut against the first mating surface.

[0007] According to some embodiments of the present invention, the elastic buffer is installed on the yoke assembly; when the elastic buffer is in the first state, the elastic buffer is used to elastically abut against the second mating surface.

[0008] According to some embodiments of the present invention, the elastic buffer includes a fixed part and a deformable part, and the elastic buffer is installed on the yoke assembly through the fixed part; The yoke assembly has a slot, the opening of which is at least located on the side of the yoke assembly facing the armature assembly in a first direction; along the first direction, the deformable portion is projected onto the yoke assembly within the slot; when the elastic buffer is in a first state, at least a portion of the deformable portion is located between the first contact surface and the second contact surface; when the elastic buffer is in a second state, the deformable portion is housed within the slot.

[0009] According to some embodiments of the present invention, the armature assembly includes two armatures, which are spaced apart along a first direction; the yoke assembly includes two contact portions, which are arranged opposite to each other along a second direction, and the contact portions are positioned between the two armatures along the first direction, with each contact portion having a first engagement surface on the side facing the armature in the first direction; each armature has a second engagement surface at each end in the second direction, and the second engagement surface is located on the side of the armature facing the contact portion in the first direction, with each second engagement surface selectively engaging with the corresponding first engagement surface; the second direction is perpendicular to the first direction; When the elastic buffer is in the first state, at least a portion of the elastic buffer is located between a set of corresponding first mating surfaces and second mating surfaces.

[0010] According to some embodiments of the present invention, the slot includes a first opening located on one side of the contact portion along a first direction; Alternatively, the slot may include a first opening located on opposite sides of the contact portion along the first direction; Alternatively, the slot may include a first opening located on opposite sides of the contact portion along the first direction and a second opening located on one side of the contact portion in the second direction, the second opening being connected to the first opening.

[0011] According to some embodiments of the present invention, the contact portion is provided with an elastic buffer on each side of the first direction, and the contact portion is provided with a slot on each side of the first direction; the elastic buffer corresponds to the slot in a one-to-one manner. Alternatively, the contact portion may have one elastic buffer on each side in the first direction, and the contact portion may have one slot; two elastic buffers installed on the same contact portion may correspond to the same slot. Alternatively, the contact portion may have an elastic buffer on one side in the first direction, and the contact portion may have a slot, with the elastic buffer corresponding to the slot; when the elastic buffer is in the first state, the same elastic buffer is located between the first contact surface and the corresponding second contact surface on both sides of the contact portion in the first direction. Alternatively, the contact portion may have an elastic buffer on one side in the first direction, and the contact portion may have a slot, with the elastic buffer corresponding to the slot; when the elastic buffer is in the first state, the elastic buffer is located between the first contact surface and the corresponding second contact surface on one side of the contact portion in the first direction.

[0012] According to some embodiments of the present invention, the relay further includes a coil assembly, one end of each contact portion is fixed to one end of the coil assembly in the second direction, and the other end of the contact portion is bent to the same side of the coil assembly in the first direction; Along the first direction, each of the contact portions is provided with the elastic buffer on the side facing the coil assembly.

[0013] According to some embodiments of the present invention, in a plane perpendicular to a third direction, the cross-section of the deformed part is a pleated structure; the third direction is perpendicular to the second direction and the first direction.

[0014] According to some embodiments of the present invention, the elastic buffer is a spring sheet structure, one end of the deformable part is connected to the fixed part to form a fixed end, and the other end of the deformable part forms a free end, which is used to elastically abut against the second mating surface in the first state.

[0015] According to some embodiments of this utility model, the deformable part has a hollow area between the fixed end and the free end.

[0016] According to some embodiments of the present invention, the fixing part is fixed to the contact part on the side facing the armature; the deformable part includes a first connecting segment, a second connecting segment and a third connecting segment, one end of the first connecting segment is connected to the fixing part, the other end of the first connecting segment is connected to one end of the second connecting segment, the other end of the second connecting segment is connected to one end of the third connecting segment, and the other end of the third connecting segment forms a free end for elastically abutting against the second mating surface; In a plane perpendicular to the third direction, the second connecting segment and the first connecting segment form a first V-shaped structure, and the opening of the first V-shaped structure faces the second mating surface in the first direction. The third connecting segment and the second connecting segment form a second V-shaped structure, and the opening of the second V-shaped structure faces away from the second mating surface in the first direction. The side surface of the second V-shaped structure formed by the third connecting segment and the second connecting segment facing the second mating surface is used to abut against the second mating surface in the first state. The third direction is perpendicular to the second direction and the first direction.

[0017] According to some embodiments of the present invention, in a plane perpendicular to the third direction, the first connecting segment and the second connecting segment are connected by an arc transition; the third connecting segment is connected by an arc transition to the second connecting segment.

[0018] According to some embodiments of this utility model, the elastic buffer is a metal buffer.

[0019] According to some embodiments of this utility model, the elastic buffer is fixedly connected to the magnetic circuit structure.

[0020] According to some embodiments of this utility model, the elastic buffer is riveted to the magnetic circuit structure.

[0021] One embodiment of the above-described utility model has at least the following advantages or beneficial effects: The relay provided in this application includes a magnetic circuit structure and an elastic buffer. The magnetic circuit structure includes an armature assembly and a yoke assembly. The elastic buffer is mounted on the magnetic circuit structure and has a first state and a second state. When the elastic buffer is in the first state, it is positioned between a first mating surface and a second mating surface along a first direction, elastically abutting against the first and / or second mating surfaces before they are attracted together. Accordingly, the elastic buffer can buffer the relative movement of the first and second mating surfaces, reducing their relative speed and thus reducing the impact energy. When the elastic buffer is in the second state, it moves out of the directly opposite area of ​​the first and second mating surfaces, allowing them to effectively engage and forming a magnetic channel between them.

[0022] Therefore, the relay provided in this application, by setting an elastic buffer in the magnetic circuit structure, can effectively reduce the impact energy between the first and second mating surfaces when they are engaged, thereby effectively reducing impact noise, meeting the user's noise requirements, and improving the user experience. Attached Figure Description

[0023] Figure 1 The diagram shown is a structural schematic of a relay provided in an embodiment of this application; Figure 2 What is shown is Figure 1 A schematic diagram of the structure of a medium relay in application; Figure 3 What is shown is Figure 1 A schematic diagram of the middle section structure; Figure 4 What is shown is Figure 3 A three-dimensional structural diagram of the contact portion inside the middle yoke assembly; Figure 5 What is shown is Figure 3 A three-dimensional structural diagram of a medium-elasticity buffer component; Figure 6 What is shown is Figure 4 Middle contact part and Figure 5 A schematic diagram of the assembled structure of the medium-elastic buffer component; Figure 7 What is shown is Figure 6 A plan view of the structure; Figure 8 What is shown is Figure 7 Sectional view at point AA; Figure 9 What is shown is Figure 8 Enlarged schematic diagram of the elastic buffer component; Figure 10 The diagram shown is a plan view of the internal structure of the relay provided in an embodiment of this application; Figure 11 What is shown is Figure 10 Sectional view at point BB; Figure 12 The diagram shown is a plan view of the internal structure of the relay provided in an embodiment of this application; Figure 13 What is shown is Figure 12 A plan view of the internal structure of a medium relay during application.

[0024] The annotations in the attached figures are explained as follows: 100. Magnetic circuit structure; 110. Yoke assembly; 111. Contact part; 1111. Slot; 112. Iron core; 120. Armature assembly; 121. Armature; 122. Support; 200. Elastic buffer; 210. Fixing part; 220. Deformable part; 221. First connecting section; 222. Second connecting section; 223. Third connecting section; 300. Coil assembly; 400. Contact assembly; 410. Moving contact; 420. Static contact; P1. First mating surface; P2. Second mating surface; S1. Hollowed-out area; X. First direction; Z. Second direction; Y. Third direction. Detailed Implementation

[0025] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that the present invention will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore their detailed description will be omitted.

[0026] This application provides a relay. Figure 1 The diagram shown is a structural schematic of a relay provided in an embodiment of this application; Figure 2 What is shown is Figure 1 A schematic diagram of the structure of a medium-voltage relay in application. (See diagram below.) Figure 1 and Figure 2 As shown, the relay includes a magnetic circuit structure 100 and an elastic buffer 200. The magnetic circuit structure 100 includes a yoke assembly 110 and an armature assembly 120; the armature assembly 120 is located on one side of the yoke assembly 110 along a first direction X, and the armature assembly 120 is rotatable relative to the yoke assembly 110. To clearly understand the first direction in the embodiments of this application, the first direction is indicated by X in the figures.

[0027] like Figure 1 and Figure 2 As shown, the yoke assembly 110 has a first engagement surface P1 facing the armature assembly 120 in the first direction X, and the armature assembly 120 has a second engagement surface P2 facing the yoke assembly 110 in the first direction X. The second engagement surface P2 can selectively engage with the first engagement surface P1. In other words, along the first direction X, the armature assembly 120 and the yoke assembly 110 have engagement surfaces facing each other. Specifically, the yoke assembly 110 has a first engagement surface P1, and the armature assembly 120 has a second engagement surface P2. The second engagement surface P2 rotates with the armature assembly 120 relative to the yoke assembly 110, thereby allowing the second engagement surface P2 to selectively engage with the first engagement surface P1.

[0028] Figure 3 What is shown is Figure 1 A structural diagram of the middle section; please refer to... Figure 3 refer to Figure 1 and Figure 2 As shown in the diagram, the elastic buffer 200 is mounted on the magnetic circuit structure 100. This elastic buffer 200 has a first state and a second state. (As shown...) Figure 1 As shown, when the elastic buffer 200 is in the first state, at least a portion of the elastic buffer 200 is located between the first mating surface P1 and the second mating surface P2, to buffer the impact force when the second mating surface P2 and the first mating surface P1 are attracted together. Figure 2 As shown, when the elastic buffer 200 is in the second state, the elastic buffer 200 moves out of the first mating surface P1 and the second mating surface P2, and the second mating surface P2 and the first mating surface P1 are attracted together.

[0029] Specifically, when the elastic buffer 200 is in the first state, it is positioned between the first mating surface P1 and the second mating surface P2 along the first direction X, so as to elastically abut against the first mating surface P1 and / or the second mating surface P2 before they are attracted together. Accordingly, the elastic buffer 200 can buffer the relative movement of the first mating surface P1 and the second mating surface P2, thereby reducing the impact energy of the first mating surface P1 and the second mating surface P2. When the elastic buffer 200 is in the second state, it moves out of the directly opposite area of ​​the first mating surface P1 and the second mating surface P2, so that the first mating surface P1 can effectively engage with the second mating surface P2, forming a magnetic channel between the first mating surface P1 and the second mating surface P2.

[0030] Understandably, the elastic buffer 200 gradually stores energy when switching from the first state to the second state, in order to absorb the energy generated by the first mating surface P1 and the second mating surface P2 during impact. When switching from the second state to the first state, the elastic buffer 200 can regain its elasticity, so as to play a buffering role before the first mating surface P1 and the second mating surface P2 engage again.

[0031] It should be noted that the relay provided in this application embodiment, by setting an elastic buffer 200 in the magnetic circuit structure 100, can effectively reduce the impact energy between the first mating surface P1 and the second mating surface P2 when they are attracted, thereby effectively reducing impact noise, meeting the user's noise requirements, and improving the user's experience.

[0032] When setting the specific installation position of the elastic buffer 200, there are several possibilities for the installation position of the elastic buffer 200.

[0033] In one embodiment, such as Figures 1 to 2 As shown, the elastic buffer 200 is mounted on the yoke assembly 110; when the elastic buffer 200 is in the first state, the elastic buffer 200 is used to elastically abut against the second contact surface P2. It should be understood that during the rotation of the armature assembly 120 relative to the yoke assembly 110, the elastic buffer 200 remains stationary along with the yoke assembly 110.

[0034] Specifically, when the elastic buffer 200 installed on the yoke assembly 110 is in the first state, at least a portion of the elastic buffer 200 is located between the first mating surface P1 and the second mating surface P2. As the second mating surface P2 gradually approaches the first mating surface P1, the elastic buffer 200 elastically abuts against the second mating surface P2. The buffering effect of the elastic buffer 200 effectively reduces the impact energy of the first mating surface P1 and the second mating surface P2 during engagement, thereby effectively reducing impact noise, meeting the user's noise requirements, and improving the user experience.

[0035] It is worth noting that the yoke assembly 110 in this embodiment is stationary within the relay and does not move relative to other structures. Therefore, when the elastic buffer 200 is installed on the yoke assembly 110, the space inside the relay can be reasonably utilized, making it easier to set other structural components inside the relay to improve the integration of various structural components within the relay and meet the miniaturization requirements.

[0036] In one embodiment, the elastic buffer 200 is mounted on the armature assembly 120; when the elastic buffer 200 is in the first state, the elastic buffer 200 is used to elastically abut against the first mating surface P1. It should be understood that during the rotation of the armature assembly 120 relative to the yoke assembly 110, the elastic buffer 200 moves with the armature assembly 120.

[0037] Specifically, in this embodiment, the elastic buffer 200 follows the armature assembly 120. When the elastic buffer 200 is in the first state, at least a portion of the elastic buffer 200 is located between the first mating surface P1 and the second mating surface P2. As the second mating surface P2 gradually approaches the first mating surface P1, the elastic buffer 200 elastically abuts against the first mating surface P1, thereby effectively reducing the impact energy of the first mating surface P1 and the second mating surface P2 during engagement by utilizing the buffering effect of the elastic buffer 200. This effectively reduces impact noise, meets the user's noise requirements, and improves the user experience.

[0038] Of course, elastic buffers 200 can also be provided on both the armature assembly 120 and the yoke assembly 110, so that the elastic buffers 200 installed on the yoke assembly 110 can elastically abut against the second mating surface P2, and the elastic buffers 200 installed on the armature assembly 120 can elastically abut against the first mating surface P1. The specific details will not be elaborated further.

[0039] When the elastic buffer 200 is installed on the yoke assembly 110, the elastic buffer 200 can be structurally designed as follows. Of course, when the elastic buffer 200 is installed on the armature assembly 120, the following structural design can also be referred to, and will not be described in detail here.

[0040] Figure 4 What is shown is Figure 3A three-dimensional structural diagram of the inner contact portion 111 of the middle yoke assembly 110; Figure 5 What is shown is Figure 3 A three-dimensional structural diagram of the medium elastic buffer 200; Figure 6 What is shown is Figure 4 Middle contact part 111 and Figure 5 A schematic diagram of the assembled structure of the elastic buffer member 200. In one embodiment, such as... Figure 5 As shown, the elastic buffer 200 includes a fixed portion 210 and a deformable portion 220. It is understood that, in order to clearly understand the structure of the elastic buffer 200 in the embodiments of this application, Figure 5 The fixed part 210 and the deformable part 220 are schematically separated by a dashed line. Of course, the specific separation position between the fixed part 210 and the deformable part 220 is not limited to this.

[0041] Please combine Figure 5 refer to Figure 4 and Figure 6 In the structure shown, the elastic buffer 200 is mounted to the yoke assembly 110 via the fixing part 210; as Figure 4 As shown, the yoke assembly 110 is provided with a slot 1111, the opening of which is at least located on the side of the yoke assembly 110 facing the armature assembly 120 in the first direction X; along the first direction X, the orthographic projection of the deformable portion 220 onto the yoke assembly 110 is located within the slot 1111. Please refer to... Figure 6 refer to Figure 1 As shown in the structure, when the elastic buffer 200 is in the first state, at least a portion of the deformable portion 220 is located between the first mating surface P1 and the second mating surface P2; please refer to... Figure 6 refer to Figure 2 As shown in the structure, when the elastic buffer 200 is in the second state, the deformable part 220 is housed in the slot 1111.

[0042] It should be noted that when the elastic buffer 200 is in the first state, the deformable part 220 is used to elastically abut against the second mating surface P2 provided on the armature assembly 120. This effectively reduces the impact energy between the first mating surface P1 and the second mating surface P2 during engagement, thereby effectively reducing impact noise, meeting user noise requirements, and improving the user experience. When the elastic buffer 200 is in the second state, the deformable part 220 is housed within the slot 1111, avoiding the second mating surface P2, allowing the second mating surface P2 to effectively engage with the first mating surface P1.

[0043] In one embodiment, please refer to... Figure 1 and Figure 2The structure shown includes an armature assembly 120 comprising two armatures 121 spaced apart along a first direction X; a yoke assembly 110 comprising two contact portions 111 positioned opposite each other along a second direction Z, with the contact portions 111 positioned between the two armatures 121 along the first direction X, and each contact portion 111 having a first engagement surface P1 on the side facing the armature 121 in the first direction X; each armature 121 having a second engagement surface P2 at each end in the second direction Z, with the second engagement surface P2 located on the side of the armature 121 facing the contact portion 111 in the first direction X, and each second engagement surface P2 selectively engaging with the corresponding first engagement surface P1; the second direction Z is perpendicular to the first direction X. For clarity of understanding of the relay provided in the embodiments of this application, the second direction is indicated by Z in the figures.

[0044] It is understandable that, such as Figure 1 As shown, the armature assembly 120 includes four second mating surfaces P2. Specifically, along the first direction X, each armature 121 has a second mating surface P2 at each end facing the yoke assembly 110 in the second direction Z. Correspondingly, the yoke assembly 110 includes four first mating surfaces P1. Specifically, each contact portion 111 has a first mating surface P1 on each side in the first direction X. It is worth noting that each of the four first mating surfaces P1 in the yoke assembly 110 corresponds to a second mating surface P2 in the armature assembly 120 and selectively engages with the corresponding second mating surface P2.

[0045] like Figure 1 As shown, when the elastic buffer 200 is in the first state, at least a portion of the elastic buffer 200 is located between a set of corresponding first mating surfaces P1 and second mating surfaces P2. In other words, the elastic buffer 200 performs a buffering function between a set of corresponding first mating surfaces P1 and second mating surfaces P2.

[0046] Of course, multiple elastic buffers 200 can be set according to needs, so that the elastic buffers 200 can play a buffering role between two, three or even four sets of corresponding first mating surfaces P1 and second mating surfaces P2.

[0047] It is understood that the relay in this embodiment is a magnetic latching relay. For example... Figure 1As shown, two armatures 121 are fixed by a bracket 122, and a permanent magnet is assembled inside the bracket 122. The contact state (normally open or normally closed) of the magnetic latching relay is maintained by the magnetic force generated by the permanent magnet. When not energized, the contacts are in the initially set state, such as the normally open contact being open and the normally closed contact being closed. When a positive (or negative) pulse voltage is applied to the coil, the magnetic poles generated after the coil is energized interact with the magnetic poles of the permanent magnet. Like poles repel each other, and unlike poles attract each other, causing the polarity of the permanent magnet to change, thereby driving the armature 121 to move, so that the contacts instantly complete the state transition from normally open to normally closed. Once the contact state changes, even if the coil is de-energized, the contacts can still maintain the new state due to the magnetic force of the permanent magnet until the next energization changes the state.

[0048] For example, when the normally closed contact of the relay is in the closed state, such as Figure 2 As shown, when the first mating surface P1 and its corresponding second mating surface P2 of the contact portion 111 on one side in the first direction X are engaged, the first mating surface P1 and its corresponding second mating surface P2 of the other contact portion 111 on the opposite side in the first direction X are also engaged. It is worth noting that... Figure 2 Each contact portion 111 has a gap between its first mating surface P1 and its corresponding second mating surface P2 on the opposite side in the first direction X.

[0049] When the contacts inside the relay change from normally closed to normally open state... Figure 2 In each group of contact portions 111, the first mating surface P1 and the second mating surface P2 that are mutually attracted to each other are separated, and the first mating surface P1 and the corresponding second mating surface P2 located on the other side of each contact portion 111 in the first direction X are attracted to each other.

[0050] In other words, such as Figure 2 As shown, in the magnetic circuit structure 100, two sets of corresponding first mating surfaces P1 and second mating surfaces P2 located on opposite sides of the magnetic circuit are simultaneously attracted or separated.

[0051] When setting the structure of the elastic buffer 200, the elastic buffer 200 can be set only between one set of first mating surfaces P1 and second mating surfaces P2 that are set along the diagonal, so as to simplify the number of internal parts, reduce the assembly difficulty, reduce the weight of the relay, and meet the requirements for lightweight relay.

[0052] It is worth noting that the relay internal armature assembly 120 provided in this application embodiment is not limited to including two armatures 121, but may also include one armature 121. Furthermore, the yoke assembly 110 is not limited to including two contact portions 111, but may also include one contact portion 111 or three contact portions 111. In this case, the relay provided in this application embodiment forms a snap-action relay.

[0053] When a slot 1111 is provided on the contact portion 111, the structure of the slot 1111 can be varied, and can be at least one of the following structures.

[0054] Structure 1: such as Figure 4 As shown, the slot 1111 includes a first opening a1 located on opposite sides of the contact portion 111 along the first direction X, and a second opening a2 located on one side of the contact portion 111 in the second direction Z. The second opening a2 connects to the first opening a1. It should be understood that, in order to better understand the structure of the slot 1111, Figure 4 The first opening a1 and the second opening a2 are shown exemplarily within dashed boxes in the accompanying drawings. Due to the perspective of the drawing, Figure 4 Only one first opening a1 is shown in the diagram.

[0055] It is worth noting that when the slot 1111 has both a first opening a1 and a second opening a2, the slot 1111 forms a shape on the surface of the contact portion 111 as follows: Figure 4 The notch structure shown allows the elastic buffer 200 in the second state to effectively avoid collisions.

[0056] Structure 2: The slot 1111 includes a first opening along the first direction X on one side of the contact portion 111, for the deformable portion 220 in the second state to be inserted. It can be understood that the cutting area of ​​the contact portion 111 in this structure 2 is small, which can ensure the structural strength of the contact portion 111, reduce the risk of breakage of the contact portion 111, and thus ensure the service life of the yoke assembly 110.

[0057] Structure 3: The slot 1111 includes a first opening located on opposite sides of the contact portion 111 along the first direction X. In this case, the slot 1111 can be provided through the contact portion 111 along the first direction X.

[0058] It is understandable that the slot 1111 in Structure 1 and Structure 3 can be understood as a through slot, and the slot 1111 in Structure 2 can be understood as a sinking slot.

[0059] Based on the arrangement of the elastic buffer 200 between different first mating surfaces P1 and second mating surfaces P2, and the structural features of the slot 1111, there are multiple possibilities for the correspondence between the elastic buffer 200 and the slot 1111, at least one of the following correspondences.

[0060] Structure Form 1: Each side of the contact portion 111 in the first direction X is provided with an elastic buffer 200, and each side of the contact portion 111 in the first direction X is provided with a slot 1111; the elastic buffer 200 and the slot 1111 correspond one-to-one. When the elastic buffer 200 is in the second state, each elastic buffer 200 is housed in the corresponding slot 1111. It should be understood that in this structure form 1, each contact portion 111 has elastic buffers 200 on both sides in the first direction X. Furthermore, the slot 1111 in this structure form 1 can be any form of slot 1111 from structure 1 to structure 3.

[0061] Structure Form Two: Each side of the contact portion 111 in the first direction X is provided with an elastic buffer 200, and the contact portion 111 is provided with a slot 1111; two elastic buffers 200 installed on the same contact portion 111 correspond to the same slot 1111. It should be understood that in this structure form two, each contact portion 111 is provided with elastic buffers 200 on both sides in the first direction X, and the slot 1111 in this structure form two is a through slot, with two elastic buffers 200 sharing the same slot 1111.

[0062] Structure Form 3: The contact portion 111 is provided with an elastic buffer 200 on one side in the first direction X, and the contact portion 111 is provided with a slot 1111, with the elastic buffer 200 corresponding to the slot 1111; when the elastic buffer 200 is in the first state, the same elastic buffer 200 is located between the first mating surface P1 and the corresponding second mating surface P2 on both sides of the contact portion 111 in the first direction X.

[0063] It should be understood that in this third structural form, each contact portion 111 has only one elastic buffer 200, and the elastic buffer 200 only acts on a set of corresponding first mating surfaces P1 and second mating surfaces P2. The slot 1111 in this third structural form can be a through slot or a countersunk slot, which will not be described in detail here.

[0064] Figure 7 What is shown is Figure 6 A plan view of the structure; Figure 8 What is shown is Figure 7 A cross-sectional view at point AA. For example, when the slot 1111 in this structural form has openings on both sides in the first direction, the assembly structure of the contact portion 111 and the elastic buffer 200 can be as follows: Figure 7 and Figure 8 As shown.

[0065] Structure Form 4: The contact portion 111 is provided with an elastic buffer 200 on one side in the first direction X. The contact portion 111 is provided with a slot 1111, and the elastic buffer 200 corresponds to the slot 1111. When the elastic buffer 200 is in the first state, the elastic buffer 200 is located between the first mating surface P1 and the corresponding second mating surface P2 on one side of the contact portion 111 in the first direction X.

[0066] It should be understood that in this fourth structural form, each contact portion 111 is provided with only one elastic buffer 200. This elastic buffer 200 can be applied to the two sets of first mating surfaces P1 and second mating surfaces P2 located on both sides of the contact portion 111 in the first direction X. In other words, the first mating surfaces P1 and their corresponding second mating surfaces P2 located on both sides of the contact portion 111 in the first direction X share the same elastic buffer 200.

[0067] In this structural form four, the slot 1111 can be a through slot.

[0068] In one embodiment, such as Figure 1 and Figure 2 As shown, the relay provided in this application embodiment also includes a coil assembly 300, with one end of each contact portion 111 fixed to one end of the coil assembly 300 in the second direction Z, and the other end of the contact portion 111 bent to the same side of the coil assembly 300 in the first direction X.

[0069] Figure 10 The diagram shown is a plan view of the internal structure of the relay provided in an embodiment of this application; Figure 11 What is shown is Figure 10 The sectional view at point BB. Please refer to... Figure 10 refer to Figure 11 In one embodiment of the structure shown, the yoke assembly 110 further includes an iron core 112, which is inserted into the coil in the coil assembly 300, and one contact portion 111 is fixed to one end of the iron core 112 exposed in the second direction Z of the coil, and the other contact portion 111 is fixed to the other end of the iron core 112 exposed in the second direction Z of the coil.

[0070] It is worth noting that the iron core 112 and the contact portion 111 in the yoke assembly 110 can be an integral structure or a segmented structure. For example, when the iron core 112 and the contact portion 111 are a separate structure, the iron core 112 can be passed through the coil frame in the coil assembly 300 first, and then two contact portions 111 can be riveted to both sides of the iron core 112.

[0071] Please continue to refer to this. Figure 11In one embodiment of the structure shown, each contact portion 111 is provided with an elastic buffer 200 on the side facing the coil assembly 300 along the first direction X, so as to make reasonable use of the internal space of the relay and improve the integration of the internal structure of the relay.

[0072] Figure 9 What is shown is Figure 8 An enlarged schematic diagram of the elastic buffer 200. (See diagram below.) Figure 9 As shown, in one embodiment, the cross-section of the deformable portion 220 is a pleated structure in a plane perpendicular to the third direction Y; the third direction Y is perpendicular to the second direction Z and the first direction X. For clarity of understanding of the relay provided in the embodiments of this application, the third direction is indicated by Y in the figures.

[0073] It should be noted that the pleated structure of the deformable part 220 can deform or unfold during elastic contact to optimize the buffer deformation of the deformable part 220, effectively reduce the impact energy of the first mating surface P1 and the second mating surface P2 during adsorption, thereby effectively reducing impact noise, meeting the user's noise requirements, and improving the user's experience.

[0074] It is understandable that the folded structure can be an irregular shape variation, or a wavy variation, or it can contain only a single curved surface.

[0075] In one embodiment, please combine Figure 8 Continue to refer to Figure 9 The structure shown features a spring-loaded buffer 200, which is simple in design and low in manufacturing cost. Compared to complex springs or other elastic devices, the spring-loaded structure is more compact, occupies less space, and is more suitable for use in space-constrained environments.

[0076] Specifically, such as Figure 8 As shown, within the spring structure, one end of the deformable part 220 is connected to the fixed part 210 to form a fixed end, and the other end of the deformable part 220 forms a free end. In this embodiment, the deformable part 220 and the fixed part 210 are integrated on the same spring structure, which can reduce the number of parts, reduce assembly difficulty and cost, and improve the overall integrity and reliability of the structure.

[0077] It is worth noting that in this embodiment, the free end of the deformable part 220 is used to abut against the second mating surface P2 in the first state. This structural arrangement allows the deformable part 220 to undergo elastic deformation in a timely manner under the action of external force, thereby realizing the position adjustment of the free end in the first direction X, so as to effectively absorb the impact energy when the first mating surface P1 and the second mating surface P2 are engaged, thereby effectively reducing impact noise, meeting the user's noise requirements, and improving the user experience.

[0078] In one embodiment, please refer to... Figure 5 and Figure 6 As shown in the structure, the deformable part 220 has a hollow area S1 between the fixed end and the free end to enhance the deformation ability of the elastic buffer 200 after being impacted, so that the elastic buffer 200 can effectively absorb the impact energy when the first mating surface P1 and the second mating surface P2 are engaged, thereby effectively reducing impact noise, meeting the user's noise requirements, and improving the user's experience.

[0079] In addition, the hollowed-out area S1 can reduce the weight of the elastic buffer 200, so as to facilitate the lightweight design of the relay.

[0080] In one specific embodiment, please continue to combine Figure 1 refer to Figure 5 , Figure 6 and Figure 8 The structure shown has a fixing part 210 fixed to the contact part 111 on the side facing the armature 121; the deformable part 220 includes a first connecting section 221, a second connecting section 222 and a third connecting section 223. One end of the first connecting section 221 is connected to the fixing part 210, the other end of the first connecting section is connected to one end of the second connecting section 222, the other end of the second connecting section 222 is connected to one end of the third connecting section 223, and the other end of the third connecting section 223 forms a free end for elastically abutting against the second mating surface P2.

[0081] To clearly understand the structure of the elastic buffer 200 in the embodiments of this application, Figure 5 The first connecting segment 221, the second connecting segment 222, and the third connecting segment 223 are schematically separated by dashed lines. Of course, the specific separation positions of the first connecting segment 221, the second connecting segment 222, and the third connecting segment 223 are not limited to this.

[0082] like Figure 5 , Figure 6 and Figure 8 As shown, in a plane perpendicular to the third direction Y, the second connecting segment 222 and the first connecting segment 221 form a first V-shaped structure, and the opening of the first V-shaped structure faces the second mating surface P2 in the first direction X. The third connecting segment 223 and the second connecting segment 222 form a second V-shaped structure, and the opening of the second V-shaped structure faces away from the second mating surface P2 in the first direction X. Figure 1 The second mating surface P2 shown is shown, and the second V-shaped structure formed by the third connecting segment 223 and the second connecting segment 222 has one side surface facing the second mating surface P2 for abutting the second mating surface P2 in the first state.

[0083] When the elastic buffer 200 is in the first state, the second V-shaped structure formed by the second connecting segment 222 and the third connecting segment 223 is located between the first mating surface P1 and its corresponding second mating surface P2. When the second mating surface P2 contacts the second V-shaped structure, the second V-shaped structure moves towards the contact portion 111 in the first direction X until it is housed in the slot 1111.

[0084] It is worth noting that during the movement of the second V-shaped structure formed by the second connecting segment 222 and the third connecting segment 223 along the first direction X, the first V-shaped structure formed by the first connecting segment 221 and the second connecting segment 222 may deform or move synchronously along the first direction X.

[0085] In one embodiment, such as Figure 8 and Figure 9 As shown, in a plane perpendicular to the third direction Y, the first connecting segment 221 and the second connecting segment 222 are connected by an arc transition; the third connecting segment 223 is connected by an arc transition to the second connecting segment 222, so as to avoid the elastic buffer 200 scraping the armature 121, which can improve the service life of the armature assembly 120.

[0086] In one embodiment, the elastic buffer 200 is a metal buffer. This metal pad has high reliability, high temperature resistance, and superior fatigue resistance, which can extend the service life of the elastic buffer 200 and ensure that the elastic buffer 200 can function stably and effectively between the first mating surface P1 and the second mating surface P2.

[0087] In one specific embodiment, the elastic buffer 200 is a one-piece structure. This one-piece structure simplifies the processing and installation process, thereby reducing manufacturing costs and improving production efficiency.

[0088] In one embodiment, the elastic buffer 200 is fixedly connected to the magnetic circuit structure 100. Exemplarily, it can be riveted, welded, or other forms of fixed connection.

[0089] It should be noted that the fixed connection not only reduces the risk of the elastic buffer 200 detaching from the magnetic circuit structure 100, but also prevents the elastic buffer 200 from shifting relative to the magnetic circuit structure 100. Therefore, this fixed connection ensures that the elastic buffer 200 effectively performs its buffering function, thereby guaranteeing its effective buffering and noise reduction effects.

[0090] Figure 12 The diagram shown is a plan view of the internal structure of the relay provided in an embodiment of this application; Figure 13 What is shown is Figure 12 A plan view of the internal structure of a medium-speed relay in application. (See diagram below.) Figure 12 and Figure 13As shown, the relay provided in this application embodiment also includes a contact assembly 400, which includes a moving contact 410 and a stationary contact 420. The moving contact 410 moves with the armature assembly 120 to contact or separate from the stationary contact 420.

[0091] In a specific configuration, the moving contact 410 is provided with a moving contact, and the stationary contact 420 is provided with a stationary contact. The contact and separation process between the moving contact 410 and the stationary contact 420 is essentially the contact and separation process between the moving contact and the stationary contact.

[0092] It is worth noting that the moving contact can be a separate structural component installed on the moving contact 410, or the moving contact can be an integral structure with the moving contact 410. Similarly, the stationary contact can be a separate structural component installed on the stationary contact 420, or the stationary contact can be an integral structure with the stationary contact 420.

[0093] Finally, it should be noted that the various embodiments / implementations provided by this utility model can be combined with each other without creating contradictions, and will not be described in detail here.

[0094] In the embodiments of the utility model, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "install," "connect," "join," and "fix" should be interpreted broadly. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "join" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of the utility model according to the specific circumstances.

[0095] In the description of the utility model embodiments, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the utility model embodiments and simplifying the description, and do not indicate or imply that the device or unit referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model embodiments.

[0096] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0097] The above are merely preferred embodiments of the utility model and are not intended to limit the utility model. For those skilled in the art, various modifications and variations can be made to the utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the utility model should be included within the protection scope of the utility model.

Claims

1. A relay, characterized in that, include: A magnetic circuit structure, the magnetic circuit structure including a yoke assembly and an armature assembly; The armature assembly is located on one side of the yoke assembly along a first direction, and the armature assembly is rotatable relative to the yoke assembly; the yoke assembly has a first contact surface on the side facing the armature assembly in the first direction, and the armature assembly has a second contact surface on the side facing the yoke assembly in the first direction, and the second contact surface can selectively engage with the first contact surface; An elastic buffer is mounted on the magnetic circuit structure. The elastic buffer has a first state and a second state. When the elastic buffer is in the first state, at least a portion of the elastic buffer is located between the first contact surface and the second contact surface to buffer the impact force when the second contact surface and the first contact surface are attracted together. When the elastic buffer is in the second state, the elastic buffer is moved out of the first contact surface and the second contact surface, and the second contact surface is attracted together with the first contact surface.

2. The relay according to claim 1, characterized in that, The elastic buffer is installed on the armature assembly; when the elastic buffer is in the first state, the elastic buffer is used to elastically abut against the first mating surface.

3. The relay according to claim 1, characterized in that, The elastic buffer is installed on the yoke assembly; when the elastic buffer is in the first state, the elastic buffer is used to elastically abut against the second mating surface.

4. The relay according to claim 3, characterized in that, The elastic buffer includes a fixed part and a deformable part, and the elastic buffer is installed on the yoke assembly through the fixed part; The yoke assembly is provided with a slot, and the opening of the slot is located at least on the side of the yoke assembly facing the armature assembly in a first direction; Along the first direction, the orthographic projection of the deformable portion onto the yoke assembly is located within the slot; When the elastic buffer is in the first state, at least a portion of the deformable part is located between the first mating surface and the second mating surface; when the elastic buffer is in the second state, the deformable part is housed in the slot.

5. The relay according to claim 4, characterized in that, The armature assembly includes two armatures, which are spaced apart along a first direction; the yoke assembly includes two contact portions, which are arranged opposite each other along a second direction, and the contact portions are positioned between the two armatures along the first direction, with each contact portion having a first engagement surface on the side facing the armature in the first direction; each armature has a second engagement surface at each end in the second direction, and the second engagement surface is located on the side of the armature facing the contact portion in the first direction, with each second engagement surface selectively engaging with the corresponding first engagement surface; The second direction is perpendicular to the first direction; When the elastic buffer is in the first state, at least a portion of the elastic buffer is located between a set of corresponding first mating surfaces and second mating surfaces.

6. The relay according to claim 5, characterized in that, The slot includes a first opening located on one side of the contact portion along a first direction; Alternatively, the slot may include a first opening located on opposite sides of the contact portion along the first direction; Alternatively, the slot may include a first opening located on opposite sides of the contact portion along the first direction and a second opening located on one side of the contact portion in the second direction, the second opening being connected to the first opening.

7. The relay according to claim 5, characterized in that, The contact portion is provided with an elastic buffer on each side of the first direction, and the contact portion is provided with a slot on each side of the first direction; the elastic buffer corresponds to the slot in a one-to-one manner; Alternatively, the contact portion may have an elastic buffer on each side in the first direction, and the contact portion may have a slot. The two elastic buffer members installed on the same contact portion correspond to the same slot; Alternatively, the contact portion may have an elastic buffer on one side in the first direction, and the contact portion may have a slot, with the elastic buffer corresponding to the slot; when the elastic buffer is in the first state, the same elastic buffer is located between the first contact surface and the corresponding second contact surface on both sides of the contact portion in the first direction. Alternatively, the contact portion may have an elastic buffer on one side in the first direction, and the contact portion may have a slot, with the elastic buffer corresponding to the slot; when the elastic buffer is in the first state, the elastic buffer is located between the first contact surface and the corresponding second contact surface on one side of the contact portion in the first direction.

8. The relay according to claim 5, characterized in that, The relay further includes a coil assembly, one end of each contact portion is fixed to one end of the coil assembly in the second direction, and the other end of the contact portion is bent to the same side of the coil assembly in the first direction; Along the first direction, each of the contact portions is provided with the elastic buffer on the side facing the coil assembly.

9. The relay according to claim 5, characterized in that, In a plane perpendicular to the third direction, the cross-section of the deformed part has a pleated structure; the third direction is perpendicular to the second direction and the first direction.

10. The relay according to claim 9, characterized in that, The elastic buffer is a spring sheet structure. One end of the deformable part is connected to the fixed part to form a fixed end, and the other end of the deformable part forms a free end. The free end is used to elastically abut against the second mating surface in the first state.

11. The relay according to claim 10, characterized in that, The deformable part has a hollow area between the fixed end and the free end.

12. The relay according to claim 10, characterized in that, The fixing part is fixed to the contact part on the side facing the armature; the deformable part includes a first connecting section, a second connecting section and a third connecting section, one end of the first connecting section is connected to the fixing part, the other end of the first connecting section is connected to one end of the second connecting section, the other end of the second connecting section is connected to one end of the third connecting section, and the other end of the third connecting section forms a free end for elastically abutting the second mating surface; In a plane perpendicular to the third direction, the second connecting segment and the first connecting segment form a first V-shaped structure, and the opening of the first V-shaped structure faces the second mating surface in the first direction. The third connecting segment and the second connecting segment form a second V-shaped structure, and the opening of the second V-shaped structure faces away from the second mating surface in the first direction. The side surface of the second V-shaped structure formed by the third connecting segment and the second connecting segment facing the second mating surface is used to abut against the second mating surface in the first state. The third direction is perpendicular to the second direction and the first direction.

13. The relay according to claim 12, characterized in that, In a plane perpendicular to the third direction, the first connecting segment and the second connecting segment are connected by an arc transition; the third connecting segment is connected by an arc transition to the second connecting segment.

14. The relay according to any one of claims 1-13, characterized in that, The elastic buffer is a metal buffer.

15. The relay according to any one of claims 1-13, characterized in that, The elastic buffer is fixedly connected to the magnetic circuit structure.

16. The relay according to claim 15, characterized in that, The elastic buffer is riveted to the magnetic circuit structure.

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