relay

Abstract

The application discloses a relay, which comprises a base, a static contact assembly, a dynamic contact assembly and an elastic member. The static contact assembly is arranged on the base and comprises a static contact. The dynamic contact assembly is arranged on the base and comprises a first lead-out member, a flexible conductive member and a dynamic contact. The flexible conductive member is provided with a first end and a second end. The first end is connected with the first lead-out member. The dynamic contact is fixedly arranged relative to the second end and is electrically connected with the flexible conductive member, and is used for contacting or separating from the static contact. The elastic member is arranged on the base and is used for providing contact pressure between the dynamic contact and the static contact.

Description

Technical Field

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

[0002] A relay is an electronic control device that has a control system (also known as an input circuit) and a controlled system (also known as an output circuit), and is commonly used in automatic control circuits. Essentially, a relay is an "automatic switch" that uses a smaller current to control a larger current. Therefore, it plays a role in automatic adjustment, safety protection, and circuit switching in circuits.

[0003] The relay includes a stationary contact assembly, a moving contact assembly, and a driving part. The stationary contact assembly includes a stationary contact, and the moving contact assembly includes a moving spring and a moving contact. The moving spring has a fixed end and a movable end. The fixed end is fixedly set, and the movable end is movable relative to the fixed end. The moving contact is fixed on the moving spring. The driving part is connected to the movable end and is used to drive the movable end to move so that the moving contact can move and make contact with or separate from the stationary contact.

[0004] In related technologies, the moving spring comprises multiple stacked copper sheets, each designed to be relatively long to ensure sufficient flexibility. Furthermore, one end of one of the copper sheets is bent to form a bend, which abuts against the pusher of the drive unit. Thus, when the relay is closed, the pusher compresses the bend, causing it to deform. This deformation provides contact pressure between the moving and stationary contacts to resist short-circuit current.

[0005] However, since the moving springs of the relays in the related technologies use multiple stacked copper sheets with long lengths, the amount of copper material used is large, which is not conducive to cost saving. Utility Model Content

[0006] Therefore, in view of the shortcomings of the above-mentioned related technologies, this application provides a relay.

[0007] The relay in this application embodiment includes: Base; A static contact assembly is mounted on the base and includes a static contact point; A moving contact assembly is mounted on the base and includes a first lead-out member, a flexible conductive member, and a moving contact. The flexible conductive member has a first end and a second end. The first end is connected to the first lead-out member. The moving contact is fixedly disposed relative to the second end and electrically connected to the flexible conductive member for contacting or separating from the stationary contact. An elastic element, mounted on the base, is used to provide contact pressure between the moving contact and the stationary contact.

[0008] According to some embodiments of this application, the relay further includes a driving portion mounted on the base, the driving portion including a coil assembly, an armature assembly and a pusher, the coil assembly being electromagnetically coupled to the armature assembly, the coil assembly being configured to drive the armature assembly to move in response to an input signal, one end of the pusher being connected to the armature assembly and the other end being connected to the elastic member.

[0009] According to some embodiments of this application, the elastic member has a fixing part, a limiting part, and a connecting part located between the fixing part and the limiting part. The fixing part is fixedly connected to the base, the limiting part is limitedly engaged with the other end of the pusher, and the connecting part is fixedly connected to the moving contact.

[0010] According to some embodiments of this application, one end of the elastic member is bent to form the limiting part, the pushing member is provided with a slot, and the limiting part is inserted into the slot.

[0011] According to some embodiments of this application, the moving contact assembly further includes a movable member connected to the second end, and the moving contact is fixed on the movable member.

[0012] According to some embodiments of this application, the flexible conductive element is bent so that the movable element and the first end are arranged opposite to each other in the contact separation direction of the moving contact and the stationary contact.

[0013] According to some embodiments of this application, the moving contact is fixed to the second end.

[0014] According to some embodiments of this application, the flexible conductive element is formed by winding multiple conductive wires together.

[0015] According to some embodiments of this application, the first end and / or the second end are formed by a flattening process.

[0016] According to some embodiments of this application, the base is provided with a slot, the elastic member is provided with a fixing part, and at least a portion of the fixing part is inserted into the slot.

[0017] According to some embodiments of this application, the elastic element is a sheet-like structure, and one end of the elastic element is bent to form a stacked sheet structure, which constitutes the fixing part.

[0018] According to some embodiments of this application, the laminated structure includes a first laminate, a second laminate, and a bending portion. The first laminate and the second laminate are stacked and arranged in layers, and the first laminate is connected to the second laminate through the bending portion. The laminated structure is provided with a plurality of slits arranged along the width direction of the elastic element. Each slit is recessed into the first laminate and the second laminate by the bending portion. The portion of the laminated structure located between adjacent slits is bent to form a flange.

[0019] According to some embodiments of this application, the slot has a first groove and a second groove that are interconnected, the flange is inserted into the first groove, and the remaining part of the stacked structure except for the flange is inserted into the second groove.

[0020] According to some embodiments of this application, the flange is interference-fitted with the groove wall of the first groove; and / or, the remaining portion of the laminated structure is interference-fitted with the groove wall of the second groove.

[0021] According to some embodiments of this application, the portion of the laminated structure located between adjacent slits is bent 90 degrees to form a flange.

[0022] According to some embodiments of this application, the slot is provided with an adhesive that fixes the fixing part to the base.

[0023] According to some embodiments of this application, the material of the flexible conductive element is different from the material of the elastic element.

[0024] According to some embodiments of this application, the elastic element is made of stainless steel.

[0025] An embodiment of the above application has at least the following advantages or beneficial effects: The relay in this embodiment replaces the moving spring in related technologies with a combination of a flexible conductive element and an elastic element. The flexible conductive element carries current, forming a conductive path between the moving and stationary contact components when they come into contact. The elastic element provides contact pressure to resist short-circuit current. Since the flexible conductive element is flexible and does not need to meet the requirement of generating elasticity after deformation, but only serves to carry current, it does not need to be designed to be long, saving costs. Furthermore, the elastic element only provides contact pressure and does not need to be conductive; therefore, it can be made of materials with poor conductivity or even non-conductive properties and lower cost. Therefore, this embodiment, by using a combination of flexible conductive and elastic elements, significantly reduces costs while meeting the requirements for current carrying capacity and short-circuit resistance. Attached Figure Description

[0026] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. It is obvious that the drawings described below are merely some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0027] Figure 1 This is a schematic diagram of a relay according to an embodiment of this application.

[0028] Figure 2 It is an omission Figure 1 A schematic diagram of the base.

[0029] Figure 3 yes Figure 2 A schematic diagram of the static contact component, dynamic contact component, and elastic element after assembly.

[0030] Figure 4 This is a schematic diagram of an elastic element.

[0031] Figure 5 yes Figure 4 A diagram from another perspective.

[0032] Figure 6 yes Figure 1 A magnified view of the area at point X1.

[0033] The reference numerals in the attached figures are explained as follows: 100. Base 110. Slot 111. First Groove 112. Second groove 200. Contact Part 210. Static contact components 211. Static contact 212. Second lead-out component 220. Moving contact components 221. First lead-out component 222. Flexible conductive components 2221, First end 2222, Second end 223. Moving contact 224. Movable parts 300. Drive section 310. Coil Assembly 320. Armature assembly 330. Pushing component 331. Card slot 400. Elastic components 410. Fixing part 410a, Laminated Structure 411. First stack of pieces 412. Second stack 413. Bending section 414. Cutting seams 415. Flanging 420. Limiting part 430. Connecting part Detailed Implementation

[0034] 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, they are provided so that this application 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.

[0035] It is understood that the terms "comprising" and "having," and any variations thereof, in the embodiments of this application are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the steps or units listed, but may optionally include steps or units not listed, or may optionally include other steps or components inherent to these processes, methods, products, or devices.

[0036] For ease of explanation, the terms "X-axis direction," "Y-axis direction," and "Z-axis direction" are used in the specific embodiments of this application. These terms simply refer to a feature having one of these directions being perpendicular to a feature having the other direction; they do not require implementation according to the "X-axis direction," "Y-axis direction," and "Z-axis direction" described in the embodiments. In the embodiments, the X-axis direction, Y-axis direction, and Z-axis direction are mutually perpendicular.

[0037] like Figure 1 and Figure 2 As shown, the relay in this embodiment includes a base 100, a contact portion 200, and a driving portion 300, which are mounted on the base 100. The contact portion 200 includes a stationary contact assembly 210 and a moving contact assembly 220. The stationary contact assembly 210 includes a stationary contact 211, and the moving contact assembly 220 includes a moving contact 223. The driving portion 300 drives the moving contact 223 to move, so that the moving contact 223 contacts or separates from the stationary contact 211.

[0038] In an exemplary embodiment, the relay is in a closed state when the moving contact 223 is in contact with the stationary contact 211; the relay is in an open state when the moving contact 223 is separated from the stationary contact 211.

[0039] The drive unit 300 includes a coil assembly 310, an armature assembly 320, and a pusher 330. The coil assembly 310 is electromagnetically coupled to the armature assembly 320 and is configured to drive the armature assembly 320 to oscillate relative to the base 100 in response to an input signal. One end of the pusher 330 is connected to the armature assembly 320 and follows the armature assembly 320. The armature assembly 320 drives the moving contact 223 to move via the pusher 330.

[0040] The static contact assembly 210 also includes a second lead-out member 212, which is fixed on the base 100 and a portion of the second lead-out member 212 extends out of the outer surface of the base 100. The static contact 211 is fixed on the second lead-out member 212, for example, the static contact 211 is fixed on the second lead-out member 212 by riveting.

[0041] The moving contact assembly 220 also includes a first lead-out member 221 and a flexible conductive member 222. The first lead-out member 221 is fixed to the base 100, and a portion of the first lead-out member 221 extends out of the outer surface of the base 100. The flexible conductive member 222 has a first end 2221 and a second end 2222. The first end 2221 is connected to the first lead-out member 221, and the moving contact 223 is fixedly disposed relative to the second end 2222. The relay also includes an elastic member 400, which is mounted on the base 100 and is used to provide contact pressure between the moving contact 223 and the stationary contact 211.

[0042] The relay in this embodiment uses a combination of a flexible conductive element 222 and an elastic element 400 instead of the moving spring in related technologies. The flexible conductive element 222 can carry current, so that when the moving contact 223 contacts the stationary contact 211, the moving contact assembly 220 and the stationary contact assembly 210 form a conductive path. The elastic element 400 can provide contact pressure to resist short-circuit current. Since the flexible conductive element 222 itself is flexible and does not need to meet the requirement of generating elasticity after deformation, but only plays a current-carrying role, the flexible conductive element 222 does not need to be designed to be long, saving costs. In addition, the elastic element 400 only plays the role of providing contact pressure and does not need to be conductive. Therefore, the elastic element 400 can be made of materials with poor conductivity or even non-conductive properties and low cost. Therefore, the embodiment of this application uses a combination of flexible conductive element 222 and elastic element 400, which significantly reduces costs while meeting the requirements of current carrying and short-circuit resistance.

[0043] In one embodiment, a portion of the first lead-out member 221 and a portion of the second lead-out member 212 may extend out from the same side of the outer surface of the base 100 or from different side of the outer surface of the base 100.

[0044] In one exemplary embodiment, the material of the flexible conductive element 222 is different from the material of the elastic element 400. Furthermore, the conductivity of the elastic element 400 is weaker than that of the flexible conductive element 222.

[0045] As an example, the flexible conductive element 222 can be made of copper, and the elastic element 400 can be made of stainless steel.

[0046] Please continue reading. Figure 1 and Figure 2 The moving contact assembly 220 also includes a movable member 224, which is connected to the second end 2222, and the moving contact 223 is fixed on the movable member 224.

[0047] In one embodiment, the movable element 224 is made of the same material as the flexible conductive element 222, for example, both the movable element 224 and the flexible conductive element 222 are made of copper, but this is not a limitation.

[0048] like Figure 1 and Figure 2 As shown, the first lead-out member 221 and the second lead-out member 212 are arranged opposite each other in the contact separation direction (X-axis direction) between the moving contact 223 and the stationary contact 211, and the movable member 224 is located between the first lead-out member 221 and the second lead-out member 212. The flexible conductive member 222 is bent so that the movable member 224 and the first end 2221 are arranged opposite each other in the contact separation direction (X-axis direction) between the moving contact 223 and the stationary contact 211.

[0049] Of course, in other embodiments, the moving contact assembly 220 may not have a movable member 224, and the moving contact 223 may be directly fixed on the second end 2222 of the flexible conductive member 222.

[0050] In one exemplary embodiment, the flexible conductive element 222 is formed by winding multiple conductive wires. The first end 2221 and / or the second end 2222 are formed by a flattening process.

[0051] For example, the first end 2221 of the flexible conductive element 222 is formed by a flattening process; or, the second end 2222 of the flexible conductive element 222 is formed by a flattening process; or, both the first end 2221 and the second end 2222 of the flexible conductive element 222 are formed by a flattening process.

[0052] In the embodiments of this application, after the first end 2221 and the second end 2222 of the flexible conductive member 222 are flattened, they can be fixedly connected to the first lead-out member 221 and the movable member 224 respectively, so as to ensure the reliability of the connection.

[0053] like Figures 3 to 5 As shown, the elastic member 400 is provided with a fixing part 410, a limiting part 420 and a connecting part 430 located between the fixing part 410 and the limiting part 420. The fixing part 410 is fixedly connected to the base 100, the limiting part 420 is limitedly engaged with the other end of the pusher 330, and the connecting part 430 is fixedly connected to the moving contact 223.

[0054] In one embodiment, the elastic element 400 may be located on the side of the movable element 224 facing away from the second lead-out element 212. The moving contact 223, the movable element 224, and the elastic element 400 may be fixed by riveting.

[0055] In this embodiment, the fixing portion 410 of the elastic member 400 is fixedly connected to the base 100, the limiting portion 420 is limitedly engaged with the pushing member 330, and the moving contact 223 is fixedly connected to the connecting portion 430 of the elastic member 400. Thus, the moving contact 223 is suspended within the base 100 by the elastic member 400 without the need for support from the flexible conductive member 222. The elastic member 400 improves the reliability of the movement of the pushing member 330, thereby ensuring consistent contact between the moving contact 223 and the stationary contact 211.

[0056] Furthermore, during the process of the relay switching from the open state to the closed state, when the moving contact 223 contacts the stationary contact 211, the moving contact 223 cannot continue to move, while the pushing member 330 pushes against the limiting part 420 of the elastic member 400 and can continue to move, so that the part of the elastic member 400 located between the limiting part 420 and the connecting part 430 can deform to provide contact pressure between the moving contact 223 and the stationary contact 211.

[0057] like Figures 2 to 4 As shown, one end of the elastic member 400 is bent to form a limiting part 420, and the pushing member 330 is provided with a slot 331, into which the limiting part 420 is inserted.

[0058] like Figure 5 and Figure 6 As shown, the base 100 is provided with a slot 110, and at least a portion of the fixing part 410 of the elastic member 400 is inserted into the slot 110.

[0059] In one embodiment, a glue (not shown in the figure) is provided inside the slot 110, which fixes the fixing part 410 to the base 100. Here, "glue" refers to the object formed after the glue has cured.

[0060] In this embodiment, by providing colloid in the slot 110, the elastic element 400 and the base 100 can be positioned in the Z-axis direction to prevent the elastic element 400 from shifting relative to the base 100.

[0061] like Figure 5 As shown, the elastic element 400 has a sheet-like structure. One end of the elastic element 400 is bent to form a stacked sheet structure 410a, which constitutes the fixing part 410.

[0062] In this embodiment, since the laminated structure 410a is formed by bending one end of the elastic member 400, it has a smooth bending portion 413 at one end. When the laminated structure 410a is inserted into the slot 110, the bending portion 413 is relatively smooth and does not have burrs, sharp corners or other structures, so it is not easy to generate scraping with the slot wall of the slot 110.

[0063] like Figure 5 As shown, the laminated structure 410a includes a first laminate 411, a second laminate 412, and a bending portion 413. The first laminate 411 and the second laminate 412 are stacked in the X-axis direction, and the first laminate 411 is connected to the second laminate 412 through the bending portion 413. The laminated structure 410a has a plurality of slits 414 arranged along the width direction (Z-axis direction) of the elastic member 400. Each slit 414 is recessed into the first laminate 411 and the second laminate 412 by the bending portion 413. Among them, the portion of the laminated structure 410a located between adjacent slits 414 is bent to form a flange 415.

[0064] In one embodiment, the portion of the laminate structure 410a located between adjacent slits 414 is bent 90 degrees to form a flange 415.

[0065] The slot 110 has a first groove 111 and a second groove 112 that are interconnected. A flange 415 is inserted into the first groove 111, and the flange 415 is interference-fitted with the groove wall of the first groove 111. The remaining part of the laminated structure 410a, except for the flange 415, is inserted into the second groove 112, and the remaining part of the laminated structure 410a is interference-fitted with the groove wall of the second groove 112.

[0066] In this embodiment, the remaining part of the stacked structure 410a cooperates with the second groove 112 to position the elastic member 400 and the base 100 in the X-axis direction, and the flange 415 cooperates with the first groove 111 to position the elastic member 400 and the base 100 in the Y-axis direction, so that the fixing part 410 of the elastic member 400 can be stably and firmly fixed to the base 100.

[0067] In summary, the relays of the embodiments of this application have at least the following advantages and beneficial effects: The relay in this embodiment uses a combination of a flexible conductive element 222 and an elastic element 400 instead of the moving spring in related technologies. The flexible conductive element 222 can carry current, so that when the moving contact 223 contacts the stationary contact 211, the moving contact assembly 220 and the stationary contact assembly 210 form a conductive path. The elastic element 400 can provide contact pressure to resist short-circuit current. Since the flexible conductive element 222 itself is flexible and does not need to meet the requirement of generating elasticity after deformation, but only plays a current-carrying role, the flexible conductive element 222 does not need to be designed to be long, saving costs. In addition, the elastic element 400 only plays the role of providing contact pressure and does not need to be conductive. Therefore, the elastic element 400 can be made of materials with poor conductivity or even non-conductive properties and low cost. Therefore, the embodiment of this application uses a combination of flexible conductive element 222 and elastic element 400, which significantly reduces costs while meeting the requirements of current carrying and short-circuit resistance.

[0068] It is understood that the various embodiments / implementations provided in this application can be combined with each other without creating contradictions, and will not be described one by one here.

[0069] In the embodiments of this application, 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 expressly defined. The terms "install," "connect," "link," and "fix" should be interpreted broadly. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "link" 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 this application based on the specific circumstances.

[0070] In the description of the embodiments of the application, 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 accompanying drawings. They are only for the convenience of describing the embodiments of the application 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 embodiments of the application.

[0071] 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 claims. 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.

[0072] The above are merely preferred embodiments of the application examples and are not intended to limit the application examples. For those skilled in the art, the application examples can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the application examples should be included within the protection scope of the application examples.

Claims

1. A relay characterized by comprising: include: Base; A static contact assembly is mounted on the base and includes a static contact point; A moving contact assembly is mounted on the base and includes a first lead-out member, a flexible conductive member, and a moving contact. The flexible conductive member has a first end and a second end. The first end is connected to the first lead-out member. The moving contact is fixedly disposed relative to the second end and electrically connected to the flexible conductive member for contacting or separating from the stationary contact. An elastic element, mounted on the base, is used to provide contact pressure between the moving contact and the stationary contact.

2. The relay according to claim 1, characterized in that The relay also includes a drive portion mounted on the base, the drive portion including a coil assembly, an armature assembly and a pusher, the coil assembly being electromagnetically coupled to the armature assembly, the coil assembly being configured to drive the armature assembly to move in response to an input signal, one end of the pusher being connected to the armature assembly and the other end being connected to the elastic member.

3. The relay according to claim 2, characterized in that The elastic member has a fixing part, a limiting part, and a connecting part located between the fixing part and the limiting part. The fixing part is fixedly connected to the base, the limiting part is limitedly engaged with the other end of the pusher, and the connecting part is fixedly connected to the moving contact.

4. The relay according to claim 3, characterized in that One end of the elastic member is bent to form the limiting part, and the pushing member is provided with a slot, into which the limiting part is inserted.

5. The relay of claim 1, wherein The moving contact assembly also includes a movable member, which is connected to the second end, and the moving contact is fixed on the movable member.

6. The relay according to claim 5, characterized in that The flexible conductive element is bent so that the movable element and the first end are arranged opposite each other in the contact separation direction of the moving contact and the stationary contact.

7. The relay of claim 1, wherein The moving contact is fixed at the second end.

8. The relay of claim 1, wherein The flexible conductive element is formed by winding multiple conductive wires together.

9. The relay according to claim 8, characterized in that, The first end and / or the second end are formed by a flattening process.

10. The relay according to claim 1, characterized in that, The base is provided with a slot, and the elastic member is provided with a fixing part, at least a portion of which is inserted into the slot.

11. The relay according to claim 10, characterized in that, The elastic element is a sheet-like structure, and one end of the elastic element is bent to form a stacked sheet structure, which constitutes the fixing part.

12. The relay according to claim 11, characterized in that, The laminated structure includes a first laminate, a second laminate, and a bending portion. The first laminate and the second laminate are stacked and arranged in layers, and the first laminate is connected to the second laminate through the bending portion. The laminated structure has a plurality of slits arranged along the width direction of the elastic element. Each slit is recessed into the first laminate and the second laminate by the bending portion. The portion of the laminated structure located between adjacent slits is bent to form a flange.

13. The relay according to claim 12, characterized in that, The slot has a first groove and a second groove that are interconnected. The flange is inserted into the first groove, and the rest of the stacked structure except for the flange is inserted into the second groove.

14. The relay according to claim 13, characterized in that, The flange is interference-fitted with the wall of the first groove; and / or, the remaining portion of the laminated structure is interference-fitted with the wall of the second groove.

15. The relay according to claim 12, characterized in that, In the laminated structure, the portion located between adjacent slits is bent at 90 degrees to form a flange.

16. The relay of claim 10, wherein, The slot contains an adhesive that secures the fixing part to the base.

17. The relay according to any one of claims 1-16, characterized in that, The material of the flexible conductive element is different from the material of the elastic element.

18. The relay according to any one of claims 1-16, characterized in that, The elastic element is made of stainless steel.

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