Relay

Abstract

The present application relates to a relay (10), comprising a contact assembly and an electromagnetic system. The contact assembly comprises a first movable reed portion (12) and a first stationary reed portion (15) which are opposite to each other, and a second movable reed portion (13) and a second stationary reed portion (16) which are opposite to each other. During a process in which the electromagnetic system drives the first movable reed portion (12) and the second movable reed portion (13) to move in a direction towards the first stationary reed portion (15) and the second stationary reed portion (16), the first movable reed portion (12) and the first stationary reed portion (15) come into contact before the second movable reed portion (13) and the second stationary reed portion (16) come into contact. During a process in which the electromagnetic system drives the first movable reed portion (12) and the second movable reed portion (13) to move in a direction away from the first stationary reed portion (15) and the second stationary reed portion (16), the second movable reed portion (13) and the second stationary reed portion (16) separate before the first movable reed portion (12) and the first stationary reed portion (15) separate.

Description

relay

[0001] Related applications

[0002] This application claims priority to Chinese patent application No. 2025100637338, filed on January 15, 2025, entitled "Relay", the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application relates to the field of relay technology, and in particular to a relay. Background Technology

[0004] Relays typically consist of a moving spring and a stationary spring. The relay uses a coil assembly to drive the armature, which in turn moves a pusher. This pusher moves the moving spring closer to or further away from the stationary spring, controlling the contact between the moving contact on the moving spring and the stationary contact on the stationary spring, thus connecting or disconnecting the corresponding external circuit. However, in traditional relays, the moving and stationary springs have relatively high impedance and temperature rise, affecting the relay's performance stability and lifespan. Summary of the Invention

[0005] According to various embodiments of this application, a relay is provided.

[0006] A relay includes a contact assembly and an electromagnetic system. The contact assembly includes a first moving spring portion and a second moving spring portion electrically connected to each other, and a first stationary spring portion and a second stationary spring portion electrically connected to each other, wherein the first moving spring portion and the first stationary spring portion are opposite to each other, and the second moving spring portion and the second stationary spring portion are opposite to each other. An electromagnetic system is directly or indirectly connected to the first movable spring portion and the second movable spring portion, and is used to drive the first movable spring portion and the second movable spring portion to move towards or away from the first stationary spring portion and the second stationary spring portion, so that the first movable spring portion contacts the first stationary spring portion, and the second movable spring portion contacts the second stationary spring portion, or so that the first movable spring portion separates from the first stationary spring portion, and the second movable spring portion separates from the second stationary spring portion. During the process of the electromagnetic system driving the first movable spring portion and the second movable spring portion to move towards the first stationary spring portion and the second stationary spring portion, the first movable spring portion and the first stationary spring portion contact the second movable spring portion and the second stationary spring portion before the second movable spring portion and the second stationary spring portion. During the process of the electromagnetic system driving the first movable spring portion and the second movable spring portion to move away from the first stationary spring portion and the second stationary spring portion, the second movable spring portion and the second stationary spring portion separate before the first movable spring portion and the first stationary spring portion.

[0007] In one embodiment, the relay further includes a base, through which the second stationary spring portion passes, and on which the first stationary spring portion is disposed. The contact assembly further includes a moving spring base, through which the moving spring base passes, and on which the first moving spring portion and the second moving spring portion are disposed.

[0008] In one embodiment, the first movable spring portion is provided with a first movable contact, the second movable spring portion is provided with a second movable contact, the first stationary spring portion is provided with a first stationary contact, and the second stationary spring portion is provided with a second stationary contact. The first stationary contact and the second stationary contact are spaced apart in the thickness direction of the base, and the first movable spring portion and the second movable spring portion are arranged side by side in the thickness direction of the base. The first movable contact is opposite to the first stationary contact, and the second movable contact is opposite to the second stationary contact.

[0009] In one embodiment, the relay further includes a base, the contact assembly and the electromagnetic system are disposed on the base, the electromagnetic system includes a coil assembly and an armature assembly, the relay further includes a push element, the coil assembly is disposed on the base, the armature assembly is rotatably disposed on the base, the push element is movably connected to the armature assembly, and the first moving spring portion and the second moving spring portion are both connected to the push element.

[0010] In one embodiment, the pushing element is provided with a first groove and a second groove, which are spaced apart in the thickness direction of the base. The ends of the first moving spring portion and the second moving spring portion are respectively located in the first groove and the second groove. Under the drive of the armature assembly, the pushing element can move in the direction perpendicular to the thickness of the base.

[0011] In one embodiment, the armature assembly includes a main body and a mating part connected to the main body. The main body is rotatably disposed on the base, and the rotation axis of the main body relative to the base is parallel to the thickness direction of the base. The mating part is embedded in the push element.

[0012] In one embodiment, in a second direction, at least a portion of the first groove and the second groove are misaligned, the mounting positions of the first moving spring portion and the second moving spring portion on the push element are misaligned, the second direction is perpendicular to the thickness direction of the base and points from the first moving spring portion to the first stationary spring portion.

[0013] In one embodiment, in the second direction, the distance between the first moving spring portion and the first stationary spring portion is less than the distance between the second moving spring portion and the second stationary spring portion.

[0014] In one embodiment, the pushing element includes a first pushing card and a second pushing card arranged side by side in a first direction parallel to the thickness direction of the base. The first slot and the second slot are respectively provided on the first pushing card and the second pushing card. The first pushing card and the second pushing card are fixed relative to each other. The armature assembly is used to drive the first pushing card and the second pushing card to move synchronously along the second direction.

[0015] In one embodiment, the pushing element includes a first pushing card and a second pushing card arranged side by side in a first direction parallel to the thickness direction of the base, the first slot and the second slot being respectively provided on the first pushing card and the second pushing card, and the first pushing card and the second pushing card being able to move relative to each other in the second direction.

[0016] In one embodiment, the mating part has a first mating surface and a second mating surface disposed opposite to each other in a second direction. The first mating surface is disposed toward the first stationary spring portion. The mating part can abut against the first push card and the second push card through the first mating surface to drive the first moving spring portion and the second moving spring portion toward the direction closer to the first stationary spring portion and the second stationary spring portion. The mating part can abut against the first push card and the second push card through the second mating surface to drive the first moving spring portion and the second moving spring portion toward the direction away from the first stationary spring portion and the second stationary spring portion. The second direction is perpendicular to the thickness direction of the base and points from the first moving spring portion to the first stationary spring portion.

[0017] In one embodiment, in the initial state, the distance between the first mating surface and the first push card is less than the distance between the first mating surface and the second push card.

[0018] In one embodiment, in the initial state, the first mating surface abuts against the inner wall surface of the first push card and is spaced apart from the inner wall surface of the second push card.

[0019] In one embodiment, in the initial state, the distance between the second mating surface and the first push card is greater than the distance between the second mating surface and the second push card.

[0020] In one embodiment, in the initial state, the second mating surface abuts against the inner wall surface of the second push card and is spaced apart from the inner wall surface of the first push card.

[0021] In one embodiment, in the initial state, the first moving spring portion and the second moving spring portion are flush in the second direction.

[0022] Details of one or more embodiments of the present invention are set forth in the following drawings and description. Other features, objects, and advantages of the invention will become apparent from the specification, drawings, and claims. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the disclosed drawings without creative effort.

[0024] Figure 1 is a schematic diagram of the relay structure in some embodiments where the first and second stationary spring portions are omitted.

[0025] Figure 2 is a structural schematic diagram of the relay from another angle in some embodiments.

[0026] Figure 3 is a schematic diagram of the armature assembly, push element and moving spring in some embodiments.

[0027] Figure 4 is a structural schematic diagram of the component shown in Figure 3 from another angle.

[0028] Figure 5 is a schematic diagram of the structure of the driving element as an integral structure in some embodiments.

[0029] Figure 6 is a schematic diagram of the structure of a relay when the pushing element includes a first pushing card and a second pushing card in some embodiments.

[0030] Figure 7 is a schematic diagram of the relay structure from another angle when the pushing element includes the first pushing card and the second pushing card in some embodiments.

[0031] Figure 8 is a cross-sectional view of the relay shown in Figure 7 along the AA direction.

[0032] Figure 9 is a partially enlarged schematic diagram of the circular frame area shown in Figure 8.

[0033] Figure 10 is a schematic diagram of the structure of the driving element in some embodiments.

[0034] Figure 11 is a schematic diagram of the explosion of the propulsion element shown in Figure 10.

[0035] Figure 12 is a schematic diagram of the structure of the actuating element in some other embodiments.

[0036] Figure 13 is a schematic diagram of the structure of the push element shown in Figure 12 during the assembly process. Detailed Implementation

[0037] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0038] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0039] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0040] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0041] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0042] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0043] Please refer to Figures 1 and 2. Figure 1 is a structural schematic diagram of the relay 10 in some embodiments, omitting the first stationary spring portion 15 and the second stationary spring portion 16. Figure 2 is a structural schematic diagram of the relay 10 in some embodiments from another angle. The relay 10 provided in this application can be used to control the on / off state of any applicable external circuit. In some embodiments, the relay 10 includes a base 11, a contact assembly, and an electromagnetic system. The contact assembly is disposed on the base 11 and includes a first moving spring portion 12, a second moving spring portion 13, a first stationary spring portion 15, and a second stationary spring portion 16. The first moving spring portion 12 and the second moving spring portion 13 are electrically connected to each other, for example, in parallel. The first stationary spring portion 15 and the second stationary spring portion 16 are electrically connected to each other, for example, in parallel. The first moving spring portion 12 is provided with a first moving contact 121, the second moving spring portion 13 is provided with a second moving contact 131, the first stationary spring portion 15 is provided with a first stationary contact 151, and the second stationary spring portion 16 is provided with a second stationary contact 161. The first moving contact 121 of the first moving spring portion 12 is opposite to the first stationary contact 151 of the first stationary spring portion 15, and the second moving contact 131 of the second moving spring portion 13 is opposite to the second stationary contact 161 of the second stationary spring portion 16.

[0044] An electromagnetic system is mounted on the base 11 and is directly or indirectly connected to the first moving spring portion 12 and the second moving spring portion 13. The electromagnetic system can drive the first moving spring portion 12 and the second moving spring portion 13 to move closer to or further away from the first stationary spring portion 15 and the second stationary spring portion 16, so that the first moving contact 121 of the first moving spring portion 12 and the first stationary contact 151 of the first stationary spring portion 15 come into contact, and the second moving contact 131 of the second moving spring portion 13 and the second stationary contact 161 of the second stationary spring portion 16 come into contact, thereby connecting the external circuit, or separating the first moving contact 121 of the first moving spring portion 12 and the first stationary contact 151 of the first stationary spring portion 15, and separating the second moving contact 131 of the second moving spring portion 13 and the second stationary contact 161 of the second stationary spring portion 16, thereby disconnecting the external circuit.

[0045] In some embodiments, the contact assembly further includes a movable spring base 14, which passes through a base 11. A first movable spring portion 12 and a second movable spring portion 13 are both disposed on the movable spring base 14 and electrically connected to it. The first movable spring portion 12 and the second movable spring portion 13 are connected in parallel. The movable spring base 14 extends through the base 11 to the side facing away from the first movable spring portion 12 and the second movable spring portion 13 for electrical connection with an external circuit. A second stationary spring portion 16 passes through the base 11. A first stationary spring portion 15 is fixedly disposed on the second stationary spring portion 16 and connected in parallel with it. The second stationary spring portion 16 extends through the base 11 to the side facing away from the first stationary spring portion 15 for electrical connection with an external circuit.

[0046] Referring to Figures 3 and 4, in some embodiments, the electromagnetic system includes a coil assembly 17, a yoke, and an armature assembly 18. The relay 10 also includes a pushing element 19. The coil assembly 17 is disposed on the base 11. The yoke passes through the coil assembly 17 and is used to conduct the magnetic field generated by the coil assembly 17. The armature assembly 18 is rotatably disposed on the base 11. The pushing element 19 is movably connected to the armature assembly 18. The ends of the first moving spring portion 12 and the second moving spring portion 13 away from the moving spring base 14 are both connected to the pushing element 19. When the direction of the current in the coil of the coil assembly 17 changes, the coil assembly 17 can drive the armature assembly 18 to rotate relative to the base 11 by means of electromagnetic force. The rotation of the armature assembly 18 relative to the base 11 can cause the pushing element 19 to drive the first moving spring portion 12 and the second moving spring portion 13 to move towards or away from the first stationary spring portion 15 and the second stationary spring portion 16. It should be noted that the naming of the base 11 in this application does not imply a limitation on the structure and location of the base 11. In the relay 10, the location of the base 11 is not limited, and the base 11 may include, but is not limited to, a base structure, an upper shell structure, or an outer shell structure.

[0047] Furthermore, in some embodiments, during the process of the electromagnetic system driving the first moving spring portion 12 and the second moving spring portion 13 to move towards the first stationary spring portion 15 and the second stationary spring portion 16 until the first moving spring portion 12 and the first stationary spring portion 15 contact, and the second moving spring portion 13 and the second stationary spring portion 16 contact, the first moving spring portion 12 and the first stationary spring portion 15 contact before the second moving spring portion 13 and the second stationary spring portion 16. That is, when the first moving spring portion 12 and the first stationary spring portion 15 separate, and the second moving spring portion 13 and the second stationary spring portion 16 separate, during the process of the electromagnetic system driving the first moving spring portion 12 and the second moving spring portion 13 to move towards the first stationary spring portion 15 and the second stationary spring portion 16, the first moving spring portion 12 and the first stationary spring portion 15 contact first, and then during the process of the electromagnetic system continuing to drive the first moving spring portion 12 and the second moving spring portion 13 to move, the second moving spring portion 13 contacts the second stationary spring portion 16. In other words, the overtravel of the first moving spring portion 12 and the first stationary spring portion 15 is greater than the overtravel of the second moving spring portion 13 and the second stationary spring portion 16.

[0048] During the process of the electromagnetic system driving the first moving spring portion 12 and the second moving spring portion 13 to move away from the first stationary spring portion 15 and the second stationary spring portion 16 until the first moving spring portion 12 and the first stationary spring portion 15 separate, and the second moving spring portion 13 and the second stationary spring portion 16 separate, the second moving spring portion 13 and the second stationary spring portion 16 separate before the first moving spring portion 12 and the first stationary spring portion 15. That is to say, when the first moving spring portion 12 and the first stationary spring portion 15 are in contact, and the second moving spring portion 13 and the second stationary spring portion 16 are in contact, during the process of the electromagnetic system driving the first moving spring portion 12 and the second moving spring portion 13 to move away from the first stationary spring portion 15 and the second stationary spring portion 16, the second moving spring portion 13 and the second stationary spring portion 16 will separate first, and then during the process of the electromagnetic system continuing to drive the first moving spring portion 12 and the second moving spring portion 13 to move, the first moving spring portion 12 and the second stationary spring portion 16 will separate.

[0049] In the aforementioned relay 10, the first moving spring portion 12 and the first stationary spring portion 15 make contact before the second moving spring portion 13 and the second stationary spring portion 16, and the second moving spring portion 13 and the second stationary spring portion 16 separate before the first stationary spring portion 15. This allows the second moving spring portion 13 and the second stationary spring portion 16 to primarily function as current carriers in the circuit, while the first moving spring portion 12 and the first stationary spring portion 15 can function as arc-burning elements. The parallel connection of the first moving spring portion 12 and the second moving spring portion 13, as well as the parallel connection of the first stationary spring portion 15 and the second stationary spring portion 16, reduces the initial contact resistance of the contact assembly. The separate contact and separation of the two sets of moving and stationary spring portions ensures that only one set of moving and stationary spring portions contacts or separates at a time, improving the stability of the contact resistance of the contact assembly during contact or separation. This helps to suppress temperature rise and improve the performance stability and service life of the relay 10.

[0050] In some embodiments, the first stationary contact 151 and the second stationary contact 161 are spaced apart in a first direction 21 parallel to the thickness direction of the base 11. The first moving spring portion 12 and the second moving spring portion 13 are arranged side by side in the first direction 21. One end of the first moving spring portion 12 and the second moving spring portion 13 in a third direction 23 perpendicular to the first direction 21 is connected to the moving spring base 14, and the other end is connected to the pushing element 19. The first moving spring portion 12 and the first stationary spring portion 15 are spaced apart in sequence in a second direction 22 perpendicular to the first direction 21 and the third direction 23. The second moving spring portion 13 and the second stationary spring portion 16 are spaced apart in sequence in the second direction 22. The pushing element 19 can move along the second direction 22 to drive the first moving spring portion 12 and the second moving spring portion 13 to move along the second direction 22 toward or away from the first stationary spring portion 15 and the second stationary spring portion 16. Therefore, the layout of the first moving spring part 12, the second moving spring part 13 and the pushing element 19 can be reasonably designed, which is beneficial to the assembly of the first moving spring part 12 and the second moving spring part 13 on the pushing element 19. At the same time, it can also avoid the interference between the two moving spring parts or the two stationary spring parts during movement, thereby improving the performance stability of the relay 10.

[0051] In some embodiments, the pushing element 19 is provided with a first groove 1911 and a second groove 1921, which are spaced apart in a first direction 21. The ends of the first moving spring portion 12 and the second moving spring portion 13 are respectively disposed in the first groove 1911 and the second groove 1921. The ends of the first moving spring portion 12 and the second moving spring portion 13 can be inserted into the first groove 1911 and the second groove 1921 and fixed to the pushing element 19 by any applicable process such as welding, gluing, riveting, or bending.

[0052] In some embodiments, the armature assembly 18 includes a main body 181, a magnet disposed within the main body 181, and a mating part 182 connected to the main body 181. The main body 181 and the mating part 182 may be integrally molded from materials such as plastic. The main body 181 is rotatably disposed on the base 11, and the rotation axis of the main body 181 relative to the base 11 is parallel to the thickness direction (first direction 21) of the base 11. The mating part 182 is embedded in the pushing element 19. The coil assembly 17 can drive the main body 181 to rotate relative to the base 11 by means of the electromagnetic force between itself and the magnet within the armature assembly 18, thereby enabling the mating part 182 to drive the pushing element 19 to move along the second direction 22.

[0053] In the relay 10 provided in this application, there are no limitations on the means by which the overtravel of the first moving spring portion 12 and the first stationary spring portion 15 is greater than that of the second moving spring portion 13 and the second stationary spring portion 16, as long as the first moving spring portion 12 and the first stationary spring portion 15 can contact the second moving spring portion 13 and the second stationary spring portion 16 before the second moving spring portion 13 and the second stationary spring portion 16 can separate from the first moving spring portion 12 and the first stationary spring portion 15.

[0054] Referring to Figures 5 and 6, in some embodiments, at least a portion of the first groove 1911 and the second groove 1921 are misaligned in the second direction 22, such that the mounting positions of the first moving spring portion 12 and the second moving spring portion 13 on the push element 19 are misaligned. Therefore, when the first stationary spring portion 15 and the second stationary spring portion 16 are flush in the second direction 22, the misalignment of the mounting positions of the first moving spring portion 12 and the second moving spring portion 13 on the push element 19 in the second direction 22 allows the distances between the first moving spring portion 12 and the first stationary spring portion 15, and the distances between the second moving spring portion 13 and the second stationary spring portion 16, to be unequal. For example, in the second direction 22, the distance between the first moving spring portion 12 and the first stationary spring portion 15 is less than the distance between the second moving spring portion 13 and the second stationary spring portion 16. As a result, when the pushing element 19 synchronously drives the first moving spring portion 12 and the second stationary spring portion 16 to move, the overtravel of the first moving spring portion 12 and the first stationary spring portion 15 is greater than the overtravel of the second moving spring portion 13 and the second stationary spring portion 16, and the contact and separation sequences of the two sets of moving spring portions and stationary spring portions are staggered.

[0055] Referring to Figure 5, in an embodiment where the mounting positions of the first moving spring portion 12 and the second moving spring portion 13 on the push element 19 are staggered in the second direction 22, so that the overtravel of the two sets of moving spring portions and the two sets of stationary spring portions are different, the push element 19 can be a one-piece plastic structure, that is, the first moving spring portion 12 and the second moving spring portion 13 are provided on the same structure.

[0056] Referring to Figure 6, in some embodiments, the pushing element 19 includes a first pushing clip 191 and a second pushing clip 192 arranged side by side in a first direction 21, with a first groove 1911 and a second groove 1921 respectively disposed on the first pushing clip 191 and the second pushing clip 192. The first pushing clip 191 and the second pushing clip 192 are fixed relative to each other, and the mounting positions of the first moving spring portion 12 on the first pushing clip 191 and the second moving spring portion 13 on the second pushing clip 192 are offset in the second direction 22. The mating portion 182 is embedded in the first pushing clip 191 and the second pushing clip 192, and the rotation of the armature assembly 18 relative to the base 11 can drive the first pushing clip 191 and the second pushing clip 192 to move synchronously along the second direction 22, thereby causing the first moving spring portion 12 and the second moving spring portion 13 to move synchronously relative to the first stationary spring portion 15 and the second stationary spring portion 16. It is understandable that the first moving spring portion 12 and the first stationary spring portion 15, as the arc-burning erosion ends, tend to have temperatures significantly higher than the second moving spring portion 13 and the second stationary spring portion 16 during the arc-burning erosion process. Therefore, by configuring the pushing element 19 as two pushing clips connected to the first moving spring portion 12 and the second moving spring portion 13 respectively, the first pushing clip 191 can be made of a material with stronger temperature resistance than the second pushing clip 192, for example, the heat distortion temperature of the first pushing clip 191 is higher than that of the second pushing clip 192, depending on the different temperature requirements of the first moving spring portion 12 and the second moving spring portion 13. This satisfies the temperature resistance requirements of the first moving spring portion 12 while also reducing the overall material cost of the pushing element 19, thus balancing performance reliability and low cost.

[0057] Please refer to Figures 7 and 8. In some embodiments, when the pushing element 19 is provided with a first pushing card 191 and a second pushing card 192 arranged side by side in the first direction 21, the first pushing card 191 and the second pushing card 192 can move relative to each other along the second direction 22. Thus, in the initial state, the mounting positions of the first moving spring portion 12 on the first pushing card 191 and the second moving spring portion 13 on the second pushing card 192 can be aligned with each other in the second direction 22. The armature assembly 18 drives the first pushing card 191 and the second pushing card 192 to move asynchronously, achieving the effect of the first moving spring portion 12 and the first stationary spring portion 15 first contacting and then separating relative to the second moving spring portion 13 and the second stationary spring portion 16. The initial state can be the state of the relay 10 when the first moving spring portion 12 is separated from the first stationary spring portion 15, the second moving spring portion 13 is separated from the second stationary spring portion 16, and the coil is not energized.

[0058] Further, referring to Figures 8 and 9, the mating part 182 has a first mating surface 1821 and a second mating surface 1822 disposed opposite to each other in the second direction 22. The first mating surface 1821 is disposed facing the first stationary spring portion 15, and the second mating surface 1822 is disposed away from the first stationary spring portion 15. The first mating surface 1821 and the second mating surface 1822 can both be located on the portion of the mating part 182 embedded in the pushing element 19. When the armature assembly 18 moves relative to the base 11, the mating part 182 can abut against the inner wall surface of the first pushing clip 191 and the second pushing clip 192 through the first mating surface 1821, thereby driving the pushing element 19 to move toward the first stationary spring portion 15, thereby driving the first moving spring portion 12 and the second moving spring portion 13 to move toward the first stationary spring portion 15 and the second stationary spring portion 16. The mating part 182 can abut against the first push card 191 and the second push card 192 through the second mating surface 1822, so as to drive the push element 19 to move away from the first stationary spring part 15, thereby driving the first moving spring part 12 and the second moving spring part 13 to move away from the first stationary spring part 15 and the second stationary spring part 16.

[0059] Furthermore, referring to FIG9, in some embodiments, in the initial state, the distance between the first mating surface 1821 and the first push card 191 is less than the distance between the first mating surface 1821 and the second push card 192. Therefore, when the armature assembly 18 moves relative to the base 11, causing the mating portion 182 to move along the second direction 22 towards the direction closer to the first stationary spring portion 15, the mating portion 182 will first contact the inner wall surface of the first push card 191 and drive the first push card 191 to move the first moving spring portion 12 towards the direction closer to the first stationary spring portion 15. Then, it will contact the inner wall surface of the second push card 192 and drive the second push card 192 to move the second moving spring portion 13 towards the direction closer to the second stationary spring portion 16. This results in the first moving spring portion 12 and the first stationary spring portion 15 contacting first, followed by the second moving spring portion 13 and the second stationary spring portion 16 contacting later.

[0060] For example, in some embodiments, in the initial state, the first mating surface 1821 abuts against the inner wall surface of the first push card 191 and is spaced apart from the inner wall surface of the second push card 192. Referring to FIG9, the portion of the first mating surface 1821 opposite to the first push card 191 may protrude toward the side where the first stationary spring portion 15 is located relative to the portion of the first mating surface 1821 opposite to the second push card 192, and abut against the inner wall surface of the first push card 191, so that the first mating surface 1821 and the inner wall surface of the second push card 192 are spaced apart. Thus, while controlling the overtravel of the first moving spring portion 12 and the second moving spring portion 13 to be different, it is also beneficial to improve the assembly stability of the mating portion 182 and the first push card 191, and improve the structural reliability of the relay 10.

[0061] In some embodiments, in the initial state, the distance between the second mating surface 1822 and the first push card 191 is greater than the distance between the second mating surface 1822 and the second push card 192. It is understood that when the pushing element 19, driven by the armature assembly 18, causes the first moving spring portion 12 to contact the first stationary spring portion 15, and the second moving spring portion 13 to contact the second stationary spring portion 16, the first mating surface 1821 contacts the inner wall surfaces of both the first push card 191 and the second push card 192. Since in the initial state, the distance between the second mating surface 1822 and the first push card 191 is greater than the distance between the second mating surface 1822 and the second push card 192, when the first mating surface 1821 contacts the inner wall surfaces of both the first push card 191 and the second push card 192, the distance between the second mating surface 1822 and the inner wall surface of the first push card 191 is greater than the distance between the second mating surface 1822 and the inner wall surface of the second push card 192. Therefore, when the mating part 182 moves away from the first stationary spring part 15 under the drive of the main body part 181, the second mating surface 1822 will first contact the inner wall surface of the second push card 192 and drive the second push card 192 to drive the second moving spring part 13 to move away from the second stationary spring part 16, and then contact the inner wall surface of the first push card 191 to drive the first push card 191 to drive the first moving spring part 12 to move away from the first stationary spring part 15, thereby achieving the effect of the second moving spring part 13 and the second stationary spring part 16 separating before the first moving spring part 12 and the first stationary spring part 15.

[0062] Referring to Figure 9, in some embodiments, in the initial state, the second mating surface 1822 abuts against the inner wall surface of the second push card 192 and is spaced apart from the inner wall surface of the first push card 191. For example, the portion of the second mating surface 1822 opposite to the second push card 192 has a recessed groove so that the second mating surface 1822 and the inner wall surface of the second push card 192 are spaced apart in the second direction 22. When the mating part 182 moves toward the direction closer to the first stationary spring portion 15 until the first mating surface 1821 abuts against the inner wall surfaces of both the first push card 191 and the second push card 192, the relative position of the mating part 182 and the first push card 191 remains unchanged, while the relative position of the mating part 182 and the second push card 192 changes, which is equivalent to the mating part 182 moving a certain distance relative to the second push card 192 toward the direction closer to the first stationary spring portion 15. Therefore, when the first moving spring portion 12 and the first stationary spring portion 15 come into contact, and the second moving spring portion 13 and the second stationary spring portion 16 come into contact, the distance between the second mating surface 1822 and the first push card 191 is greater than the distance between the second mating surface 1822 and the second push card 192, thereby achieving the effect of separating the second moving spring portion 13 and the second stationary spring portion 16. At the same time, it can also improve the stability and reliability of the structural fit between the mating part 182, the first push card 191 and the second push card 192 in the initial state.

[0063] Understandably, traditional methods for controlling the overtravel of the moving spring assembly and the stationary spring assembly usually involve using contacts with different cap heights or controlling the different push-pull drop differences of the two push clips. Traditional setups involve assembly tolerances and dimensional variations of multiple parts, which can easily lead to large variances and affect the accuracy and reliability of the relay. However, the relay 10 provided in this application controls the different installation positions of the first moving spring part 12 and the second moving spring part 13 in the second direction 22, or controls the different distances between the two sides of the mating part 182 and the first push clip 191 and the second push clip 192. This involves fewer changes in parts, simplifies assembly, reduces manufacturing costs, and helps improve the performance and reliability of the relay 10.

[0064] When the pushing element 19 is provided with a first pushing card 191 and a second pushing card 192, the first pushing card 191 and the second pushing card 192 can be fixedly connected to be relatively fixed, or slidably connected to be able to move relative to each other in the second direction 22. The connection method between the first pushing card 191 and the second pushing card 192 is not limited. Referring to Figures 10 and 11, in some embodiments, the first pushing card 191 and the second pushing card 192 are assembled by a guide rail type insertion method. For example, the first pushing card 191 has a plurality of first guide rail structures 1912 arranged sequentially and spaced apart along the second direction 22 near the edge of the second pushing card 192, and the edge of the second pushing card 192 has a plurality of second guide rail structures 1922 arranged sequentially and spaced apart along the second direction 22. The end of the first guide rail structure 1912 protrudes towards the side where the second guide rail structure 1922 is located in the third direction 23. The end of the second guide rail structure 1922 protrudes towards the side where the first guide rail structure 1912 is located in the third direction 23. The end of the first guide rail structure 1912 abuts against the second guide rail structure 1922 and is located on the side of the end of the second guide rail structure 1922 facing the second push card 192. The end of the second guide rail structure 1922 abuts against the first guide rail structure 1912 and is located on the side of the first guide rail structure 1912 facing the first push card 191, so that the first push card 191 and the second push card 192 are inserted through the guide rails of the first guide rail structure 1912 and the second guide rail structure 1922.

[0065] It should be noted that when the first push card 191 and the second push card 192 are connected by a guide rail type insertion method, the first push card 191 and the second push card 192 can be relatively fixed, for example, through an abutment structure in the second direction 22 or by any applicable method such as adhesive, threaded connection, or snap-fit. The guide rail type insertion method simplifies the assembly process and improves structural reliability. Of course, the first guide rail structure 1912 and the second guide rail structure 1922 can also have relative sliding strokes in the second direction 22, allowing the first push card 191 and the second push card 192 to slide relative to each other in the second direction 22. Specifically, this can be adapted to the different overtravel methods used in the relay 10 to control the first moving spring part 12 and the second moving spring part 13.

[0066] Please refer to Figures 12 and 13. In some embodiments, the first push card 191 and the second push card 192 are assembled using a hook-and-loop fastener method. For example, the first push card 191 has multiple hanging rods 1913 arranged at intervals along the second direction 22, and the second push card 192 extends with multiple fastening structures 1923 arranged at intervals along the second direction 22. The fastening structures 1923 are fastened to the hanging rods 1913 one-to-one, so that the first push card 191 and the second push card 192 are connected by a hook-and-loop fastener. It should be noted that when the first push card 191 and the second push card 192 are connected by a hook-and-loop fastener method, the size of the hanging rods 1913 in the second direction 22 can be approximately adapted to the size of the fastening structures 1923 in the second direction 22, so that the two sides of the fastening structures 1923 in the second direction 22 are limited by the first push card 191, so that the first push card 191 and the second push card 192 are relatively fixed. In other embodiments, the size of the hanging rod 1913 in the second direction 22 may also be larger than the size of the fastening structure 1923 in the second direction 22, so that the fastening structure 1923 can move along the second direction 22 on the hanging rod 1913, thereby enabling the first push card 191 and the second push card 192 to move relative to each other in the second direction 22. Specifically, the design can be adapted according to the different overtravel methods of the first moving spring part 12 and the second moving spring part 13 in the relay 10.

[0067] In some embodiments, before assembling the first moving spring portion 12 and the second moving spring portion 13 onto the push element 19, the first moving spring portion 12 may contact the first stationary spring portion 15, and the second moving spring portion 13 may contact the second stationary spring portion 16. Then, one end of the first moving spring portion 12 and the second moving spring portion 13 may be deformed away from the first stationary spring portion 15 and the second stationary spring portion 16 before being assembled onto the push element 19. This arrangement, through advance alignment, helps improve the accuracy and reliability of the contact between the moving spring portion and the stationary spring portion after assembly. It also prevents foreign objects from falling and contaminating the contacts during the trial production stage. Furthermore, it allows the armature assembly 18 to push the push element 19 later, and the push element 19 to apply a reaction force to the armature assembly 18 later, avoiding the weak area of ​​the electromagnetic force of the armature assembly 18 and improving the performance reliability of the relay 10.

[0068] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0069] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A relay, comprising: The contact assembly includes a first moving spring portion and a second moving spring portion electrically connected to each other, and a first stationary spring portion and a second stationary spring portion electrically connected to each other, wherein the first moving spring portion and the first stationary spring portion are opposite to each other, and the second moving spring portion and the second stationary spring portion are opposite to each other. and, An electromagnetic system is directly or indirectly connected to the first movable spring portion and the second movable spring portion, and is used to drive the first movable spring portion and the second movable spring portion to move towards or away from the first stationary spring portion and the second stationary spring portion, such that the first movable spring portion contacts the first stationary spring portion, and the second movable spring portion contacts the second stationary spring portion, or causes the first movable spring portion to separate from the first stationary spring portion, and the second movable spring portion to separate from the second stationary spring portion. During the process of the electromagnetic system driving the first movable spring portion and the second movable spring portion to move towards the first stationary spring portion and the second stationary spring portion, the first movable spring portion and the first stationary spring portion contact the second movable spring portion and the second stationary spring portion before the second movable spring portion and the second stationary spring portion. During the process of the electromagnetic system driving the first movable spring portion and the second movable spring portion to move away from the first stationary spring portion and the second stationary spring portion, the second movable spring portion and the second stationary spring portion separate before the first movable spring portion and the first stationary spring portion.

2. The relay according to claim 1, the relay further includes a base, the second stationary spring portion passes through the base, the first stationary spring portion is disposed on the second stationary spring portion, the contact assembly further includes a moving spring base, the moving spring base passes through the base, and the first moving spring portion and the second moving spring portion are disposed on the moving spring base.

3. The relay according to claim 2, wherein the first moving spring portion is provided with a first moving contact, the second moving spring portion is provided with a second moving contact, the first stationary spring portion is provided with a first stationary contact, the second stationary spring portion is provided with a second stationary contact, the first stationary contact and the second stationary contact are spaced apart in the thickness direction of the base, the first moving spring portion and the second moving spring portion are arranged side by side in the thickness direction of the base, the first moving contact is opposite to the first stationary contact, and the second moving contact is opposite to the second stationary contact.

4. The relay according to claim 1, the relay further includes a base, the contact assembly and the electromagnetic system are disposed on the base, the electromagnetic system includes a coil assembly and an armature assembly, the relay further includes a pushing element, the coil assembly is disposed on the base, the armature assembly is rotatably disposed on the base, the pushing element is movably connected to the armature assembly, and the first moving spring portion and the second moving spring portion are both connected to the pushing element.

5. The relay according to claim 4, wherein the pushing element is provided with a first groove and a second groove, the first groove and the second groove are spaced apart in the thickness direction of the base, the ends of the first moving spring portion and the second moving spring portion are respectively provided in the first groove and the second groove, and the pushing element can move along the thickness direction perpendicular to the base under the drive of the armature assembly.

6. The relay according to claim 5, wherein the armature assembly includes a main body and a mating part connected to the main body, the main body is rotatably disposed on the base, and the rotation axis of the main body relative to the base is parallel to the thickness direction of the base, and the mating part is embedded in the pushing element.

7. The relay according to claim 5, wherein in a second direction, at least a portion of the first slot and the second slot are misaligned, the mounting positions of the first moving spring portion and the second moving spring portion on the push element are misaligned, the second direction is perpendicular to the thickness direction of the base and extends from the first moving spring portion to the first stationary spring portion.

8. The relay according to claim 7, wherein in the second direction, the distance between the first moving spring portion and the first stationary spring portion is less than the distance between the second moving spring portion and the second stationary spring portion.

9. The relay according to claim 8, wherein the pushing element includes a first pushing card and a second pushing card arranged side by side in a first direction parallel to the thickness direction of the base, the first slot and the second slot are respectively provided on the first pushing card and the second pushing card, the first pushing card and the second pushing card are fixed relative to each other, and the armature assembly is used to drive the first pushing card and the second pushing card to move synchronously along the second direction.

10. The relay according to claim 6, wherein the pushing element includes a first pushing card and a second pushing card arranged side by side in a first direction parallel to the thickness direction of the base, the first slot and the second slot are respectively provided on the first pushing card and the second pushing card, the first pushing card and the second pushing card are capable of relative movement in a second direction, the second direction being perpendicular to the thickness direction of the base and pointing from the first moving spring portion to the first stationary spring portion.

11. The relay according to claim 10, wherein the mating part has a first mating surface and a second mating surface disposed opposite to each other in the second direction, the first mating surface being disposed toward the first stationary spring portion, the mating part being able to abut against the first push clip and the second push clip through the first mating surface to drive the first moving spring portion and the second moving spring portion toward the direction closer to the first stationary spring portion and the second stationary spring portion, and the mating part being able to abut against the first push clip and the second push clip through the second mating surface to drive the first moving spring portion and the second moving spring portion toward the direction away from the first stationary spring portion and the second stationary spring portion.

12. The relay according to claim 11, wherein in the initial state, the distance between the first mating surface and the first push card is less than the distance between the first mating surface and the second push card.

13. The relay according to claim 12, wherein in the initial state, the first mating surface abuts against the inner wall surface of the first push card and is spaced apart from the inner wall surface of the second push card.

14. The relay according to claim 12, wherein in the initial state, the distance between the second mating surface and the first push card is greater than the distance between the second mating surface and the second push card.

15. The relay according to claim 14, wherein in the initial state, the second mating surface abuts against the inner wall surface of the second push card and is spaced apart from the inner wall surface of the first push card.

16. The relay according to claim 12, wherein in the initial state, the first moving spring portion and the second moving spring portion are flush in the second direction.

Images