relay

Abstract

The application discloses a relay, comprising a contact assembly and a breaking assembly. The contact assembly comprises a static contact and a movable member, and the movable member can form at least one conductive path after contacting with the static contact. The breaking assembly comprises an exciter, an impact member and a connecting member with an inner cavity, at least part of the impact member is located in the inner cavity, and the exciter is configured to apply a driving force to the impact member in response to an excitation signal. Wherein, the inner wall surface of the inner cavity and the outer peripheral side surface of the impact member have a releasable connection structure, and the releasable connection structure is configured to release the impact member when the driving force reaches a threshold value, so that the impact member impacts the movable member to break at least one of the at least one conductive path.

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] When an abnormal overload such as overcurrent occurs in the energized circuit, the relay is required to disconnect the circuit, thereby cutting off the overload current and providing safety protection. However, when the load to be disconnected (high voltage, high current) is very large, an electric arc will be generated in the relay contacts, resulting in a violent arc between the contacts, which is not conducive to achieving disconnection. Utility Model Content

[0004] This application provides a relay to solve the problem in related technologies where arcing between moving and stationary contacts due to large currents hinders disconnection.

[0005] The relay in this application embodiment includes:

[0006] A contact assembly includes a stationary contact and a movable member, wherein the movable member, upon contact with the stationary contact, forms at least one conductive path; and

[0007] A disconnect assembly includes an exciter, an impactor, and a connector having an inner cavity, at least a portion of the impactor being located within the inner cavity, and the exciter being configured to apply a driving force to the impactor in response to an excitation signal;

[0008] The inner wall of the cavity has a releasable connection structure with the outer peripheral side of the impact member. The releasable connection structure is configured to release the impact member when the driving force reaches a threshold, so that the impact member impacts the movable member to disconnect at least one of the at least one conductive path.

[0009] According to some embodiments of this application, at least a portion of the exciter is fixed within the inner cavity.

[0010] According to some embodiments of this application, the connector is made of a metallic material; and / or, the impact member is made of an insulating material.

[0011] According to some embodiments of this application, the impact member has a groove on the side facing the exciter.

[0012] According to some embodiments of this application, the connector is a cylindrical structure with openings at both ends, and the cylindrical structure forms the inner cavity.

[0013] According to some embodiments of this application, the releasable connection structure includes a first limiting part and a second limiting part. The first limiting part is disposed on the connector, and the second limiting part is disposed on the impact member. The first limiting part and the second limiting part are mutually limiting and engaged, and when the driving force reaches a threshold, the first limiting part and the second limiting part disengage from each other.

[0014] According to some embodiments of this application, the first limiting part is a first protrusion protruding from the inner wall surface of the inner cavity, and the second limiting part is a second protrusion protruding from the outer peripheral side of the impact member, wherein the second protrusion is located on the side of the first protrusion facing away from the movable member.

[0015] According to some embodiments of this application, the outer periphery of the impact member is further provided with a first guide groove. The first guide groove extends from the edge of the impact member near the movable member along the moving direction of the movable member to the second protrusion. At least a portion of the first protrusion is located in the first guide groove, and the first protrusion guides and cooperates with the first guide groove.

[0016] According to some embodiments of this application, a first guide ramp is provided at the position where the first protrusion contacts the second protrusion. The first guide ramp is arranged obliquely relative to the moving direction of the movable member and is configured to guide the impact member to move in a direction closer to the movable member.

[0017] According to some embodiments of this application, a second guide slope is provided on the side of the second protrusion facing the first guide slope, and the second guide slope is in contact with the first guide slope.

[0018] According to some embodiments of this application, the connector has a first opening for the impact member to dislodge, the first opening communicating with the inner cavity; the first protrusion has a third guide ramp on the side near the first opening, the third guide ramp being arranged obliquely relative to the direction of movement of the movable member, and configured to guide the second protrusion from one side of the first protrusion to the other side of the first protrusion when the impact member extends into the inner cavity through the first opening.

[0019] According to some embodiments of this application, one of the first limiting part and the second limiting part is a snap-fit ​​part and the other is a snap-fit ​​hole, wherein the snap-fit ​​part is used to snap into the snap-fit ​​hole.

[0020] According to some embodiments of this application, the outer periphery of the impact member is further provided with a second guide groove, which extends through both ends of the impact member along the axial direction of the impact member; the inner wall surface of the inner cavity of the connector is provided with a guide protrusion, which guides and cooperates with the second guide groove.

[0021] According to some embodiments of this application, the relay further includes a contact cavity, in which at least a portion of the disconnecting component is located.

[0022] According to some embodiments of this application, the relay further includes a contact cavity, the stationary contact and the connector are mounted on the contact cavity, and a portion of the movable member is movably located within the contact cavity.

[0023] According to some embodiments of this application, the contact cavity has a through mounting hole, and the connector passes through the mounting hole.

[0024] According to some embodiments of this application, the disconnect component further includes an adapter, through which the connector is connected to the contact cavity.

[0025] According to some embodiments of this application, the connector is a cylindrical structure with openings at both ends, and the outer periphery of the connector has a flange, which is connected to the contact cavity through the adapter.

[0026] According to some embodiments of this application, the contact cavity includes a yoke plate and an insulating cover. The insulating cover is disposed on one side surface of the yoke plate in the thickness direction. The static contact includes at least two leads. The leads and the connecting member are mounted on the top of the insulating cover. The movable member includes a movable contact. The two ends of the movable contact in the length direction are respectively in contact with or separated from at least two leads. When the movable contact contacts a pair of leads, a conductive path is formed.

[0027] According to some embodiments of this application, the movable member includes a movable contact and a push rod member, the movable contact is mounted on the push rod member, and the movable contact can contact the stationary contact to form at least one of the conductive paths;

[0028] The push rod component includes a push rod, an insulating seat, and a contact bracket. The insulating seat is connected to one end of the push rod, the contact bracket is connected to the insulating seat, and the moving contact is installed inside the contact bracket.

[0029] The movable component further includes an elastic element connected between the moving contact and the contact support, which provides an elastic force to the moving contact to move toward the stationary contact, thereby providing contact pressure.

[0030] An embodiment of the above application has at least the following advantages or beneficial effects:

[0031] The relay of this application embodiment is provided with a disconnecting component. When an excitation signal occurs, the disconnecting component can disconnect at least one of the at least one conductive path formed by the contact component, thereby achieving the purpose of disconnecting the conductive path. Furthermore, a releasable connection structure is provided between the impact member and the connecting member, allowing the impact member to impact the movable member only when needed, without affecting the normal operation of the relay. Moreover, since the releasable connection structure is located between the inner wall surface of the cavity and the outer peripheral surface of the impact member, when assembling the disconnecting component, the impact member and the connecting member can be assembled first, followed by the exciter, or the connecting member and the exciter can be assembled first, followed by the impact member. This assembly sequence is more flexible and can adapt to the assembly requirements of different relays.

[0032] Furthermore, when the connector is made of metal, the design of the releasable connection structure between the inner wall of the cavity and the outer peripheral side of the impactor allows the impactor to be released by the releasable connection structure with only a small distance of movement, reducing the energy loss of the exciter.

[0033] Furthermore, by guiding and engaging the first protrusion with the first guide groove, the impact member can be prevented from rotating relative to the connecting member during the process of being installed into the inner cavity, thereby avoiding the problem that the second protrusion and the first protrusion cannot be assembled in place; in addition, the groove wall of the first guide groove can limit the first protrusion, preventing the second protrusion from rotating after it is assembled in place, causing the second protrusion and the first protrusion to separate circumferentially.

[0034] Furthermore, the guide protrusion engages with the second guide groove to prevent the impact member from rotating relative to the connector along the circumference of the connector, thereby preventing the second protrusion from failing to assemble with the first protrusion. In addition, the groove wall of the second guide groove can also limit the guide protrusion along the circumference of the connector, preventing the second protrusion from disengaging from the first protrusion along the circumference due to rotation after they are assembled.

[0035] Furthermore, the first guide ramp can guide the second protrusion of the impact member to slide over the first protrusion, thereby making it easier for at least a portion of the impact member to dislodge from the inner cavity, reducing the threshold for the releaseable connection structure to release the impact member, reducing energy loss, and thus reducing the amount of gunpowder used in the initiator.

[0036] Furthermore, the second guide slope fits snugly against the first guide slope, increasing the contact area between the first and second protrusions, thereby improving the stability between the impact member and the connecting member and preventing the impact member from shaking within the inner cavity of the connecting member. In addition, it makes it easier for the second protrusion to slide past the first protrusion, further reducing the energy loss of the exciter.

[0037] Furthermore, the first protrusion is also provided with a third guide ramp. When the impactor is inserted into the inner cavity through the first opening, the third guide ramp can guide the second protrusion to slide smoothly over the first protrusion, improving the convenience of inserting the impactor into the inner cavity and preventing the impactor from failing to be installed in place. Attached Figure Description

[0038] 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.

[0039] Figure 1 This is a top view of a relay according to an embodiment of this application.

[0040] Figure 2 It is along Figure 1 A sectional view after being cut along the AA section line.

[0041] Figure 3 yes Figure 2 A magnified view of the area at X1.

[0042] Figure 4 This is a top view of an embodiment of the present application when the connector and impactor are not assembled.

[0043] Figure 5 This is a perspective view of the connector and impactor of an embodiment of this application when they are not assembled.

[0044] Figure 6 It is along Figure 4 A sectional view after cutting along the BB section line.

[0045] Figure 7 This is a perspective view of the connector and impactor of another embodiment of this application when they are not assembled.

[0046] The reference numerals in the attached figures are explained as follows:

[0047] 100. Contact cavity

[0048] 101. Contact Chamber

[0049] 103. Drive chamber

[0050] 110. Yoke plate

[0051] 111. Through hole

[0052] 120. Insulating cover

[0053] 121. Ceramic cover

[0054] 122. Frame

[0055] 123. Mounting holes

[0056] 130. Metal Cover

[0057] 200. Contact components

[0058] 210. Static contact components

[0059] 211. Lead-out component

[0060] 220. Movable components

[0061] 221. Moving contact components

[0062] 222. Push rod components

[0063] 2221. Push rod

[0064] 2222, Contact support

[0065] 2223, Insulating base

[0066] 226. Elastic components

[0067] 300. Disconnect component

[0068] 310. Exciter

[0069] 320. Impact components

[0070] 321. Groove

[0071] 322, First guide groove

[0072] 323. Second guide groove

[0073] 330. Connectors

[0074] 331. Inner cavity

[0075] 332. First Opening

[0076] 333, Second Opening

[0077] 334. Flange

[0078] 335. Guide protrusion

[0079] 340. Adapter

[0080] 400. Releasable connection structure

[0081] 410. First limiting part

[0082] 411. First protrusion

[0083] 412. First guide slope

[0084] 413. Third guide ramp

[0085] 414. Connecting part

[0086] 420. Second limiting part

[0087] 421. Second protrusion

[0088] 422. Second guide slope

[0089] 423. Card hole

[0090] 500. Magnetic Circuit Section Detailed Implementation

[0091] 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.

[0092] 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.

[0093] 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. Specifically, the X-axis direction can be divided into left and right (the direction indicated by the arrow in the X-axis direction is left, and the opposite direction is right); the Y-axis direction can be divided into up and down (the direction indicated by the arrow in the Y-axis direction is up, and the opposite direction is down); and the Z-axis direction can be divided into front and back (the direction indicated by the arrow in the Z-axis direction is front, and the opposite direction is back).

[0094] like Figure 1 and Figure 2 As shown, the relay of this embodiment includes a contact cavity 100, a contact assembly 200, and a magnetic circuit portion 500. The contact cavity 100 has a contact chamber 101, and the contact assembly 200 includes a stationary contact 210 and a movable member 220. The stationary contact 210 is fixed to the contact cavity 100. A portion of the movable member 220 is movably located within the contact chamber 101 along the Y-axis direction. The magnetic circuit portion 500 is configured to drive the movable member 220 to move in response to an input signal, so that the movable member 220 can contact or separate from the stationary contact 210. When the movable member 220 contacts the stationary contact 210, at least one conductive path can be formed.

[0095] The term "contact" can be direct or indirect, as long as current can flow between the stationary contact 210 and the movable member 220.

[0096] The static contact 210 may include at least two leads 211, each lead 211 being mounted on the contact cavity 100, with a portion of each lead 211 extending into the contact cavity 101 and the other portion of the lead 211 extending out of the outer surface of the contact cavity 100.

[0097] The movable member 220 may include at least one movable contact 221 and a push rod member 222. The movable contact 221 is mounted on the push rod member 222, and the push rod member 222 can drive the movable contact 221 to move along the Y-axis. The two ends of a movable contact 221 along the X-axis can respectively contact or separate from the two corresponding leads 211.

[0098] In one embodiment, the stationary contact 210 includes two leads 211, which are spaced apart along the X-axis. The movable member 220 includes a movable contact 221 that can simultaneously contact both leads 211. When the movable contact 221 contacts both leads 211, current can flow in from one lead 211, pass through the movable contact 221, and then flow out from the other lead 211, thus forming a conductive path between the two leads 211 and the movable contact 221.

[0099] Of course, in other embodiments, the static contact 210 may include four leads 211, and the movable member 220 may include two movable contacts 221, one of which can contact one pair of leads 211 to form a conductive path, and the other movable contact 221 can contact another pair of leads 211 to form another conductive path.

[0100] In addition, the static contact 210 may include six or more lead-out members 211, and the movable member 220 may include three or more moving contact members 221, which will not be listed here.

[0101] Of course, in other embodiments, the static contact 210 may also include three or five leads 211.

[0102] like Figure 2 As shown, the contact cavity 100 includes a yoke plate 110 and an insulating cover 120. The insulating cover 120 covers one side surface of the yoke plate 110 in the thickness direction, and a stationary contact member 210 is mounted on the insulating cover 120. The insulating cover 120 and the yoke plate 110 form a contact cavity 101, and a movable contact member 221 is located inside the contact cavity 101. The yoke plate 110 has a through hole 111 that penetrates the yoke plate 110 along the Y-axis and communicates with the contact cavity 101. A push rod member 222 is movably inserted into the through hole 111.

[0103] The relay also includes a metal cover 130, which covers the side of the yoke plate 110 facing away from the insulating cover 120. The metal cover 130 and the yoke plate 110 form a drive chamber 103, which is connected to the contact chamber 101 through a through hole 111.

[0104] The insulating cover 120 includes a ceramic cover 121 and a frame 122. The ceramic cover 121 is made of ceramic, and the frame 122 is a ring structure made of metal. The ceramic cover 121 is connected to the yoke plate 110 through the frame 122. A static contact 210 is installed on the top of the ceramic cover 121.

[0105] Please continue reading. Figure 2The relay in this embodiment of the application further includes a disconnecting component 300, at least a portion of which is located within the contact cavity 100. The disconnecting component 300 is mounted on the top of the ceramic cover 121 and is configured to drive the movable member 220 downward along the Y-axis in response to an excitation signal to disconnect at least one of the at least one conductive path.

[0106] The relay in this embodiment of the application is provided with a disconnection component 300. When an excitation signal is generated, the disconnection component 300 can disconnect at least one of the at least one conductive path formed by the contact component 200, thereby achieving the purpose of disconnecting the conductive path.

[0107] like Figure 3 As shown, the disconnecting assembly 300 includes an exciter 310, an impact member 320, and a connector 330 having an inner cavity 331. At least a portion of the impact member 320 is located within the inner cavity 331. The exciter 310 is configured to apply a driving force to the impact member 320 in response to an excitation signal. A releasable connection structure 400 is provided between the inner wall surface of the inner cavity 331 and the outer peripheral side surface of the impact member 320. The releasable connection structure 400 is configured to release the impact member 320 when the driving force reaches a threshold, so that the impact member 320 impacts the movable member 220 to disconnect at least one of the at least one conductive path.

[0108] When the relay is in normal operating condition, i.e., when the interrupted load is not large, the relay can disconnect normally without the need for the disconnecting component 300 to break the conductive path. At this time, the impact member 320 is limited in the inner cavity 331 of the connector 330 by the releasable connection structure 400. When the exciter 310 receives an excitation signal, the exciter 310 is activated and applies a driving force to the impact member 320. When the driving force reaches a threshold, the releasable connection structure 400 releases the impact member 320, so that the impact member 320 impacts the movable member 220 to break the conductive path.

[0109] In this embodiment, when the relay is in normal operation, the impact member 320 can be held within the inner cavity 331 of the connector 330 by means of the releasable connection structure 400, without affecting the normal operation of the relay. When the relay has a large breaking load and the exciter 310 is activated, the releasable connection structure 400 releases the impact member 320, causing the impact member 320 to impact the movable member 220 and break the conductive path. Therefore, by providing the releasable connection structure 400 between the impact member 320 and the connector 330, the impact member 320 will only impact the movable member 220 when needed, without affecting the normal operation of the relay. Furthermore, since the releasable connection structure 400 is located between the inner wall of the inner cavity 331 and the outer peripheral side of the impact member 320, when assembling the disconnect assembly 300, the impact member 320 and the connector 330 can be assembled first, and then the exciter 310 can be assembled. Alternatively, the connector 330 and the exciter 310 can be assembled first, and then the impact member 320 can be assembled. The assembly sequence is more flexible to adapt to the assembly requirements of different relays.

[0110] It should be noted that when the exciter 310 is not excited, the relative positional relationship between the impact member 320 and the inner cavity 331 can be: all of the impact member 320 is located in the inner cavity 331; or, a part of the impact member 320 is located in the inner cavity 331, while the other part is located outside the inner cavity 331.

[0111] When all the impact members 320 are located within the inner cavity 331, the release connection structure 400 releases the impact members 320. This should be understood as: part or all of the impact members 320 are dislodged from the inner cavity 331.

[0112] When a portion of the impact member 320 is located in the inner cavity 331 and another portion is located outside the inner cavity 331, the release connection structure 400 releases the impact member 320. This should be understood as at least a portion of the other portion of the impact member 320 located in the inner cavity 331 being dislodged from the inner cavity 331.

[0113] Furthermore, the impactor 320 impacting the movable member 220 can be: the impactor 320 impacting the push rod member 222; or, the impactor 320 impacting the moving contact member 221. The push rod member 222 can include a push rod 2221, an insulating seat 2223, and a contact support 2222. The push rod 2221 is movably inserted into the through hole 111. The insulating seat 2223 is connected to one end of the push rod 2221. The contact support 2222 is connected to the insulating seat 2223. The moving contact member 221 is installed within the contact support 2222. The impactor 320 can impact the contact support 2222.

[0114] The movable member 220 also includes an elastic element 226, which is connected between the moving contact 221 and the contact support 2222 and is used to provide an elastic force to the moving contact 221 to move toward the stationary contact 210 in order to provide contact pressure.

[0115] In one embodiment, the elastic element 226 is a spring, one end of which abuts against the side of the moving contact 221 facing away from the stationary contact 210, and the other end of the spring abuts against the insulating seat 2223.

[0116] The "excitation signal" is generated when the threshold current (i.e., a large short-circuit current) passes through the contact component 200.

[0117] For monitoring the threshold current, a current sensor can be used to monitor the current value of the contact component 200.

[0118] In one embodiment, the igniter 310 may include gunpowder. When a threshold current passes through the contact component 200, the gunpowder is ignited and generates a large amount of gas. The gas forms a driving force that can drive the impact member 320 to move, thereby impacting the movable member 220 and breaking the conductive path.

[0119] In one embodiment, the exciter 310 may be an electric detonator or an electric detonating tube, but is not limited thereto.

[0120] like Figure 3 As shown, the top of the ceramic cover 121 has a through mounting hole 123, and the connector 330 passes through the mounting hole 123.

[0121] The disconnect assembly 300 also includes an adapter 340, through which the connector 330 is connected to the contact cavity 100. It is understood that the connector 330 can be connected to the outer surface of the ceramic cover 121 or the inner surface of the ceramic cover 121 via the adapter 340.

[0122] In one embodiment, the outer periphery of the connector 330 has a flange 334, which is connected to the contact cavity 100 via an adapter 340.

[0123] In the embodiments of this application, the connector 330 is provided with a flange 334, which is connected to the adapter 340. When the flange 334 and the adapter 340 are welded, the area of ​​the solder pad between the connector 330 and the adapter 340 can be increased, thereby improving the connection strength.

[0124] like Figures 4 to 6As shown, the connector 330 is a cylindrical structure with openings at both ends, forming an inner cavity 331. The two openings are a first opening 332 and a second opening 333, which are arranged along the Y-axis and both communicate with the inner cavity 331. The first opening 332 is close to the yoke plate 110, and the second opening 333 is away from the yoke plate 110.

[0125] In one embodiment, at least a portion of the exciter 310 is fixed within the inner cavity 331. For example, the exciter 310 may be disposed within the inner cavity 331 through a second opening 333.

[0126] When assembling the disconnected assembly 300, both the impactor 320 and the exciter 310 can be inserted into the inner cavity 331 through the second opening 333. For example, the impactor 320 is inserted into the inner cavity 331 first, and the impactor 320 is held in the inner cavity 331 by the releasable connection structure 400 and will not fall out of the first opening 332. Then the exciter 310 is inserted into the inner cavity 331 and the second opening 333 is sealed.

[0127] Of course, in another embodiment, the impact member 320 can also be inserted into the inner cavity 331 through the first opening 332.

[0128] In one embodiment, the exciter 310 and the connector 330 can be welded together, which improves the sealing of the gap between the exciter 310 and the impactor 320.

[0129] In one embodiment, the connector 330 is made of a metallic material; and / or, the impact member 320 is made of an insulating material. The insulating material may include, but is not limited to, plastics, ceramics, composite materials, etc.

[0130] When the connector 330 is made of metal, the design of the releasable connection structure positioned between the inner wall of the cavity and the outer peripheral side of the impactor 320 allows the impactor 320 to be released by the releasable connection structure with only a small movement, reducing the energy loss of the exciter. Furthermore, the metal connector 330 facilitates connection with the ceramic cover 121.

[0131] Please continue reading. Figure 3 The impact member 320 has a groove 321 on the side facing the exciter 310.

[0132] In this embodiment of the application, the groove 321 of the impact member 320 can temporarily store gas. When the exciter 310 is activated, the gas released will first fill the groove 321. The gas pressure in the groove 321 gradually increases, thereby driving the impact member 320 to move quickly and increasing the impact force.

[0133] like Figure 5 and Figure 6As shown, the releasable connection structure 400 includes a first limiting part 410 and a second limiting part 420. The first limiting part 410 is provided on the connector 330, and the second limiting part 420 is provided on the impact member 320. The first limiting part 410 and the second limiting part 420 are mutually limiting and engaged, and when the driving force reaches the threshold, the first limiting part 410 and the second limiting part 420 disengage from each other.

[0134] In one embodiment, the first limiting part 410 is a first protrusion 411 protruding from the inner wall surface of the inner cavity 331, and the second limiting part 420 is a second protrusion 421 protruding from the outer peripheral side surface 325 of the impact member 320. The second protrusion 421 is located on the side of the first protrusion 411 that is away from the movable member 220.

[0135] When the relay is in normal condition, the first protrusion 411 supports the second protrusion 421 to prevent the impact member 320 from falling off. When the exciter 310 is activated, the impact member 320 moves downward in the Y-axis direction after being driven by the driving force. After the second protrusion 421 slides past the first protrusion 411, the second protrusion 421 disengages from the first protrusion 411, causing the impact member 320 to move downward quickly and impact the movable member 220.

[0136] like Figure 5 As shown, in one embodiment, the outer periphery of the impact member 320 is further provided with a first guide groove 322. The first guide groove 322 extends from the edge of the impact member 320 near the movable member 220 along the moving direction of the movable member 220 to the second protrusion 421. At least a portion of the first protrusion 411 is located in the first guide groove 322, and the first protrusion 411 is guided and engaged with the first guide groove 322.

[0137] In this embodiment, when the impact member 320 is inserted into the inner cavity 331 of the connector 330 through the second opening 333, at least a portion of the first protrusion 411 can be inserted into the first guide groove 322. Through the guiding engagement of the first protrusion 411 and the first guide groove 322, rotation of the impact member 320 relative to the connector 330 along the circumference of the connector 330 can be avoided during the insertion of the impact member 320 into the inner cavity 331, thereby preventing the second protrusion 421 from failing to assemble properly with the first protrusion 411. Furthermore, the groove wall of the first guide groove 322 can limit the movement of the first protrusion 411, preventing the second protrusion 421 from disengaging circumferentially from the first protrusion 411 after it has been assembled properly due to rotation.

[0138] like Figure 5 As shown, the outer periphery of the impact member 320 is also provided with a second guide groove 323, which runs through both ends of the impact member 320 along the axial direction (Y-axis direction). The inner wall surface of the inner cavity 331 of the connector 330 is provided with a guide protrusion 335, which guides and engages with the second guide groove 323.

[0139] In this embodiment, when the impact member 320 is inserted into the inner cavity 331 through the first opening 332, the guide protrusion 335 and the second guide groove 323 engage in a guiding fit to prevent the impact member 320 from rotating relative to the connector 330 along the circumference of the connector 330, thereby preventing the second protrusion 421 from failing to assemble with the first protrusion 411. Furthermore, the groove wall of the second guide groove 323 can also limit the guide protrusion 335 along the circumference of the connector 330, preventing the second protrusion 421 from disengaging from the first protrusion 411 circumferentially after they are assembled due to rotation.

[0140] In one embodiment, the portion of the outer peripheral side surface 325 of the impact member 320 located between the first guide groove 322 and the second guide groove 323 may also be provided with a protrusion, which is connected to the adjacent groove wall in the first guide groove 322 and the second guide groove 323.

[0141] like Figure 6 As shown, a first guide slope 412 is provided at the position where the first protrusion 411 contacts the second protrusion 421. The first guide slope 412 is arranged at an angle relative to the moving direction of the movable member 220 and is configured to guide the impact member 320 to move in a direction closer to the movable member 220.

[0142] In the embodiments of this application, the first guide slope 412 can guide the second protrusion 421 of the impact member 320 to slide over the first protrusion 411, thereby making it easier for at least a portion of the impact member 320 to disengage from the inner cavity 331, reducing the threshold for the releaseable connection structure 400 to release the impact member 320, thereby reducing the amount of gunpowder used in the igniter and reducing energy loss.

[0143] In one embodiment, the second protrusion 421 has a second guide slope 422 on the side facing the first guide slope 412, and the second guide slope 422 is in contact with the first guide slope 412.

[0144] In this embodiment, the second guide slope 422 fits against the first guide slope 412, increasing the contact area between the first protrusion 411 and the second protrusion 421, thereby improving the stability between the impact member 320 and the connecting member 330 and preventing the impact member 320 from shaking within the inner cavity 331 of the connecting member 330. Furthermore, it makes it easier for the second protrusion 421 to slide past the first protrusion 411, further reducing the energy loss of the exciter.

[0145] Please continue reading. Figure 6The first protrusion 411 has a third guide ramp 413 on the side near the first opening 332. The third guide ramp 413 is arranged at an angle relative to the direction of movement of the movable member 220 and is configured to guide the second protrusion 421 from one side of the first protrusion 411 to the other side of the first protrusion 411 when the impact member 320 extends into the inner cavity 331 through the first opening 332.

[0146] In this embodiment of the application, the first protrusion 411 is further provided with a third guide slope 413. When the impact member 320 is inserted into the inner cavity 331 through the first opening 332, the third guide slope 413 can guide the second protrusion 421 to slide smoothly over the first protrusion 411, thereby improving the convenience of inserting the impact member 320 into the inner cavity 331 and preventing the first protrusion 411 and the second protrusion 421 from getting stuck, which would prevent the impact member 320 from being installed in place.

[0147] like Figure 7 As shown, the first limiting portion 410 and the second limiting portion 420 are not limited to the first protrusion 411 and the second protrusion 421. In another embodiment, one of the first limiting portion 410 and the second limiting portion 420 is a snap-fit ​​portion 414 and the other is a snap-fit ​​hole 423, wherein the snap-fit ​​portion 414 is used to snap into the snap-fit ​​hole 423.

[0148] When the driving force released by the exciter 310 on the impact member 320 reaches the threshold, the locking part 414 disengages from the locking hole 423, and at least a portion of the impact member 320 is able to disengage from the inner cavity 331.

[0149] In one embodiment, the impact member 320 is provided with a snap-fit ​​portion 414, and the connector 330 is provided with a snap-fit ​​hole 423; in another embodiment, the impact member 320 is provided with a snap-fit ​​hole 423, and the connector 330 is provided with a snap-fit ​​portion 414.

[0150] In summary, the relays of the embodiments of this application have at least the following advantages and beneficial effects:

[0151] The relay in this embodiment is provided with a disconnecting component 300. When an excitation signal occurs, the disconnecting component 300 can disconnect at least one of the at least one conductive path formed by the contact component 200, thereby achieving the purpose of disconnecting the conductive path. Furthermore, a releasable connection structure 400 is provided between the impact member 320 and the connecting member 330, allowing the impact member 320 to impact the movable member 220 only when needed, without affecting the normal operation of the relay. Moreover, since the releasable connection structure 400 is located between the inner wall surface of the inner cavity 331 and the outer peripheral surface of the impact member 320, when assembling the disconnecting component 300, the impact member 320 and the connecting member 330 can be assembled first, followed by the exciter 310, or the connecting member 330 and the exciter 310 can be assembled first, followed by the impact member 320. This assembly sequence is more flexible and can adapt to the assembly requirements of different relays.

[0152] Furthermore, when the connector 330 is made of metal, the design of the releasable connection structure positioned between the inner wall of the cavity and the outer peripheral side of the impactor 320 allows the impactor 320 to be released by the releasable connection structure with only a small movement, reducing the energy loss of the exciter. In addition, the metal nature of the connector 330 facilitates connection with the ceramic cover 121.

[0153] Furthermore, the guiding engagement between the first protrusion 411 and the first guide groove 322 prevents the impact member 320 from rotating relative to the connecting member 330 during the insertion of the impact member 320 into the inner cavity 331, thus avoiding the problem of the second protrusion 421 failing to assemble properly with the first protrusion 411. In addition, the groove wall of the first guide groove 322 can limit the movement of the first protrusion 411, preventing the second protrusion 421 from disengaging circumferentially from the first protrusion 411 after it has been assembled properly due to rotation.

[0154] Furthermore, the guide protrusion 335 engages with the second guide groove 323 to prevent the impact member 320 from rotating relative to the connector 330 along the circumference of the connector 330, thereby preventing the second protrusion 421 from failing to assemble with the first protrusion 411. In addition, the groove wall of the second guide groove 323 can also limit the guide protrusion 335 along the circumference of the connector 330, preventing the second protrusion 421 from disengaging from the first protrusion 411 circumferentially after they are assembled due to rotation.

[0155] Furthermore, the first guide ramp 412 can guide the second protrusion 421 of the impact member 320 to slide over the first protrusion 411, thereby making it easier for at least a portion of the impact member 320 to disengage from the inner cavity 331, reducing the threshold for the releaseable connection structure 400 to release the impact member 320, thereby reducing the amount of gunpowder used in the igniter and reducing energy loss.

[0156] Furthermore, the second guide slope 422 fits against the first guide slope 412, increasing the contact area between the first protrusion 411 and the second protrusion 421, thereby improving the stability between the impact member 320 and the connecting member 330 and preventing the impact member 320 from shaking within the inner cavity 331 of the connecting member 330. In addition, it makes it easier for the second protrusion 421 to slide past the first protrusion 411, further reducing the energy loss of the exciter.

[0157] Furthermore, the first protrusion 411 is also provided with a third guide slope 413. When the impact member 320 is inserted into the inner cavity 331 through the first opening 332, the third guide slope 413 can guide the second protrusion 421 to slide smoothly over the first protrusion 411, which improves the convenience of inserting the impact member 320 into the inner cavity 331 and avoids the impact member 320 from not being able to be installed in place.

[0158] 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.

[0159] 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.

[0160] 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.

[0161] 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.

[0162] 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: A contact assembly includes a stationary contact and a movable member, wherein the movable member can form at least one conductive path after contacting the stationary contact. as well as A disconnect assembly includes an exciter, an impactor, and a connector having an inner cavity, at least a portion of the impactor being located within the inner cavity, and the exciter being configured to apply a driving force to the impactor in response to an excitation signal; The inner wall of the cavity has a releasable connection structure with the outer peripheral side of the impact member. The releasable connection structure is configured to release the impact member when the driving force reaches a threshold, so that the impact member impacts the movable member to disconnect at least one of the at least one conductive path.

2. The relay according to claim 1, characterized in that At least a portion of the exciter is fixed within the inner cavity.

3. The relay according to claim 1, characterized in that, The connector is made of a metallic material; and / or the impact member is made of an insulating material.

4. The relay of claim 1, wherein The impact member has a groove on the side facing the exciter.

5. The relay of claim 1, wherein The connector is a cylindrical structure with openings at both ends, and the cylindrical structure forms the inner cavity.

6. The relay according to any one of claims 1 to 5, characterized in that The releasable connection structure includes a first limiting part and a second limiting part. The first limiting part is disposed on the connector and the second limiting part is disposed on the impact member. The first limiting part and the second limiting part are mutually limiting and engaged, and when the driving force reaches a threshold, the first limiting part and the second limiting part disengage from each other.

7. The relay according to claim 6, characterized in that The first limiting part is a first protrusion protruding from the inner wall surface of the inner cavity, and the second limiting part is a second protrusion protruding from the outer peripheral side of the impact member. The second protrusion is located on the side of the first protrusion facing away from the movable member.

8. The relay according to claim 7, characterized in that The outer periphery of the impact member is also provided with a first guide groove. The first guide groove extends from the edge of the impact member near the movable member along the moving direction of the movable member to the second protrusion. At least a portion of the first protrusion is located in the first guide groove, and the first protrusion guides and cooperates with the first guide groove.

9. The relay of claim 7, wherein A first guide ramp is provided at the position where the first protrusion contacts the second protrusion. The first guide ramp is arranged at an angle relative to the moving direction of the movable member and is configured to guide the impact member to move toward the movable member.

10. The relay according to claim 9, characterized in that, The second protrusion has a second guide slope on the side facing the first guide slope, and the second guide slope is in contact with the first guide slope.

11. The relay of claim 7, wherein The connector has a first opening for the impact member to dislodge, the first opening communicating with the inner cavity; the first protrusion has a third guide ramp on the side near the first opening, the third guide ramp being arranged obliquely relative to the direction of movement of the movable member, and configured to guide the second protrusion from one side of the first protrusion to the other side of the first protrusion when the impact member extends into the inner cavity through the first opening.

12. The relay of claim 6, wherein One of the first limiting part and the second limiting part is a snap-fit ​​part, and the other is a snap-fit ​​hole. The snap-fit ​​part is used to snap into the snap-fit ​​hole.

13. The relay according to any one of claims 1-5, characterized in that, The outer periphery of the impact member is also provided with a second guide groove, which extends through both ends of the impact member along the axial direction of the impact member; the inner wall surface of the inner cavity of the connector is provided with a guide protrusion, which guides and cooperates with the second guide groove.

14. The relay according to any one of claims 1-5, characterized in that, The relay also includes a contact cavity, in which at least a portion of the disconnect component is located.

15. The relay according to any one of claims 1-5, characterized in that, The relay further includes a contact cavity, on which the stationary contact and the connector are mounted, and a portion of the movable member is movably located within the contact cavity.

16. The relay according to claim 15, characterized in that, The contact cavity has a through mounting hole, and the connector passes through the mounting hole.

17. The relay of claim 15, wherein, The disconnect component further includes an adapter, through which the connector is connected to the contact cavity.

18. The relay of claim 17, wherein, The connector is a cylindrical structure with openings at both ends. The outer periphery of the connector has a flange, which is connected to the contact cavity through the adapter.

19. The relay of claim 15, wherein, The contact cavity includes a yoke plate and an insulating cover. The insulating cover is disposed on one side surface of the yoke plate in the thickness direction. The static contact includes at least two leads. The leads and the connecting member are mounted on the top of the insulating cover. The movable member includes a movable contact. The two ends of the movable contact in the length direction are respectively in contact with or separated from at least two leads. When the movable contact contacts a pair of leads, a conductive path is formed.

20. The relay according to any one of claims 1-5, characterized in that The movable component includes a movable contact and a push rod component. The movable contact is mounted on the push rod component and can contact the stationary contact to form at least one of the conductive paths. The push rod component includes a push rod, an insulating seat, and a contact bracket. The insulating seat is connected to one end of the push rod, the contact bracket is connected to the insulating seat, and the moving contact is installed inside the contact bracket. The movable component further includes an elastic element connected between the moving contact and the contact support, which provides an elastic force to the moving contact to move toward the stationary contact, thereby providing contact pressure.

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