Relay with high withstand voltage

Abstract

The utility model relates to the technical field of relays, discloses a high-voltage-withstanding relay, and aims to provide a relay which is simple to apply and has relatively high voltage-withstanding performance. The high-withstand-voltage relay comprises a first wiring pin, a second wiring pin, a first movable spring piece, a second movable spring piece and a static spring connecting piece. The first end of the first movable spring piece is in contact connection with the first wiring pin, the first end of the second movable spring piece is in contact connection with the second wiring pin, and the first movable spring piece and the second movable spring piece are configured to have a conduction state and a disconnection state. In the conducting state, the second end of the first movable spring piece and the second end of the second movable spring piece are both in contact connection with the second end of the static spring connecting piece. In the open circuit state, the second end of the first movable spring piece, the second end of the second movable spring piece and the static spring connecting piece are arranged at intervals. Through switching cooperation of the first movable spring piece and the second movable spring piece between the on state and the off state, the off-circuit gap in the off-circuit state is at least increased to two times.

Description

Technical Field

[0001] This application relates to the field of relay technology, specifically to a high-voltage relay. Background Technology

[0002] With the rapid development of the new energy industry, high-voltage DC applications are becoming increasingly common, placing higher demands on relays. Miniaturized relays with high voltage withstand specifications are gaining popularity in the market. However, traditional ultra-miniature signal relays have limited voltage withstand capabilities due to their size and structure. Therefore, in actual use, users often connect two contacts in series in the external circuit to improve the voltage withstand capability between the disconnecting contacts, which results in cumbersome circuit design. Utility Model Content

[0003] The purpose of this application is to provide a high-voltage relay, which is simple to use and has high voltage resistance.

[0004] To achieve the above objectives, this application adopts the following technical solution:

[0005] Some embodiments of this application provide a high-voltage relay including a first terminal pin, a second terminal pin, a first moving spring, a second moving spring, and a stationary spring connector. A first end of the first moving spring is in contact with the first terminal pin, and a first end of the second moving spring is in contact with the second terminal pin. The first and second moving springs are configured to have a conducting state and an open-circuit state.

[0006] In the conducting state, the second end of the first moving spring is in contact with the first end of the stationary spring connector, and the second end of the second moving spring is in contact with the second end of the stationary spring connector.

[0007] In the open circuit state, the second end of the first moving spring and the second end of the second moving spring are spaced apart from the stationary spring connector.

[0008] In some embodiments, the high-voltage relay further includes an armature and a connecting member. A first moving spring and a second moving spring are located on opposite sides of the armature along a first direction, and the armature is connected to the first and second moving springs via the connecting member.

[0009] The armature is configured to have a first position and a second position. In the first position, the armature, via the aforementioned component, controls the first and second moving springs to be in a conductive state. In the second position, the armature, via the connecting component, controls the first and second moving springs to be in a disconnected state.

[0010] In some embodiments, along a first direction, a first end and a second end of the stationary spring connector are spaced apart from the armature. The stationary spring connector includes a stationary spring connecting portion connecting the first end and the second end along the first direction, and the stationary spring connecting portion is spaced apart from the armature along the length direction of the armature.

[0011] In some embodiments, the high-voltage relay further includes a base body and a housing. First and second wiring pins are spaced apart along a first direction and are positioned near opposite sides of the base body along the first direction. The housing has an encapsulation cavity for accommodating the base body.

[0012] The stationary spring connector extends along a first direction to contact and connect the first moving spring and the second moving spring in a conductive state. The stationary spring connector is located at one end of a third direction near the base body, and when the first moving spring is in a conductive state, the third direction is the length direction of the first moving spring.

[0013] In some embodiments, at least the middle portion of the stationary spring connector is enclosed within the base body along the first direction, and the base body is an insulating component.

[0014] In some embodiments, the portion of the first wiring pin near the first moving spring is spaced apart from the stationary spring connector along a third direction; along the first direction, the first wiring pin is at least partially located on a first side of the base body, and a first creepage groove is provided on the side of the base body where the first wiring pin is located between the first wiring pin and the stationary spring connector. The housing component has a first creepage rib on the inner wall near the encapsulation cavity, and the first creepage rib is plugged into and adapted to the first creepage groove.

[0015] In some embodiments, the portion of the second wiring pin near the second moving spring is spaced apart from the stationary spring connector along a third direction; along a first direction, the second wiring pin is at least partially located on the second side of the base body, and a second creepage groove is provided on the side of the base body where the second wiring pin is provided between the second wiring pin and the stationary spring connector. The housing component has a second creepage rib near the inner wall of the encapsulation cavity, and the second creepage rib is plugged into and adapted to the second creepage groove.

[0016] In some embodiments, the high-voltage relay further includes a coil assembly comprising an electromagnetic coil, a first coil pin, and a second coil pin. One end of the first coil pin is connected to the electromagnetic coil, and the end of a first connecting pin away from the first moving spring and the other end of the first coil pin are disposed on opposite sides along a third direction near the base body. One end of the second coil pin is connected to the electromagnetic coil, and the end of a second connecting pin away from the second moving spring and the other end of the second coil pin are disposed on opposite sides along a third direction near the base body.

[0017] In some embodiments, along a first direction, the first coil pin and the first wiring pin are located on the same side of the base body, the first coil pin is spaced apart from the first moving spring, and the base body has a third creepage groove in the area between the first coil pin and the first moving spring. The housing component has a third creepage rib near the inner wall of the encapsulation cavity, and the third creepage rib is plugged into and adapted to the third creepage groove.

[0018] In some embodiments, along the first direction, the second coil pin and the second wiring pin are located on the same side of the base body, the second coil pin is spaced apart from the second moving spring, and the base body has a fourth creepage groove in the area between the second coil pin and the second moving spring. The housing component has a fourth creepage rib near the inner wall of the encapsulation cavity, and the fourth creepage rib is plugged into and adapted to the fourth creepage groove.

[0019] In some embodiments, the base body has an armature slot for accommodating the armature. Along a first direction, the first ends of the first movable spring, the first wiring pin, and the stationary spring connector are located on one side outside the armature slot, and the base body has a first baffle between the first end of the stationary spring connector and the armature slot. Along the first direction, the second ends of the second movable spring, the second wiring pin, and the stationary spring connector are located on the other side outside the armature slot, and the base body has a second baffle between the second end of the stationary spring connector and the armature slot.

[0020] In some embodiments, the outer casing has a third and a fourth baffle wall on the side near the encapsulation cavity. When the base body is located inside the encapsulation cavity, along the first direction, the third baffle wall is inserted into the side of the first baffle wall near or away from the armature slot, and the fourth baffle wall is inserted into the side of the second baffle wall near or away from the armature slot.

[0021] Thus, in the high-voltage relay of this application embodiment, in the on-state, the second end of the first moving spring and the second end of the second moving spring are in contact with the stationary spring connector. This allows the first terminal pin to be connected to the second terminal pin sequentially through the first moving spring, the stationary spring connector, and the second moving spring, thereby turning on the circuit.

[0022] In the open circuit state, the second ends of the first moving spring and the second moving spring are spaced apart from the stationary spring connector. That is, the second end of the first moving spring is spaced apart from the stationary spring connector, and the second end of the second moving spring is also spaced apart from the stationary spring connector, thereby significantly improving the open circuit gap between the first and second wiring pins in the open circuit state.

[0023] Compared to related technical solutions that use only one moving spring to switch between open and closed states, this application, based on the stationary spring connector, uses the switching and coordination of the first and second moving springs between the closed and open states to increase the opening gap between the first and second moving springs and the stationary spring connector by at least two times in the open state. This significantly increases the opening gap between the first and second connecting pins in the open state, thereby improving the withstand voltage capability. In other words, the high-voltage relay of this application has high withstand voltage performance while maintaining the original size or a smaller size. In the process of using the above-mentioned high-voltage relay, it is only necessary to connect the first and second connecting pins in series to the high-voltage circuit. The open and closed states of the high-voltage circuit can be controlled and switched by means of coils, etc. The circuit connection is simple and reduces the workload of circuit design. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the internal structure of a high-voltage relay provided in an embodiment of this application;

[0026] Figure 2 for Figure 1 The diagram shows the internal structure of a high-voltage relay in an open-circuit state.

[0027] Figure 3 for Figure 1 The diagram shows the internal structure of a high-voltage relay in the ON state.

[0028] Figure 4 for Figure 2 The diagram shows the connection structure between the armature and the first and second moving springs via a connecting member.

[0029] Figure 5 for Figure 3 A top view of a high-voltage relay is shown.

[0030] Figure 6 for Figure 1 The diagram shows a three-dimensional structure of a high-voltage relay without an armature.

[0031] Figure 7 This is a schematic diagram of the internal structure of the housing of a high-voltage relay in an embodiment of this application;

[0032] Figure 8 A schematic diagram of the external structure of a high-voltage relay provided in an embodiment of this application;

[0033] Figure 9 for Figure 8 The diagram shows a first cross-sectional view of a high-voltage relay.

[0034] Figure 10 for Figure 9 A magnified view of a portion of point A in the middle;

[0035] Figure 11 for Figure 9 A magnified view of a portion of point B in the middle;

[0036] Figure 12 for Figure 9 A magnified view of a portion of point C in the middle;

[0037] Figure 13 for Figure 9 A magnified view of a portion of point D in the middle;

[0038] Figure 14 for Figure 8 The second cross-sectional view of the high-voltage relay is shown.

[0039] Figure label:

[0040] 100. High-voltage relay;

[0041] 11. First wiring pin; 12. Second wiring pin; 13. First moving spring; 14. Second moving spring; 15. Stationary spring connector; 151. First contact; 152. Second contact; 153. Stationary spring connector;

[0042] 21. Armature; 22. Connecting component;

[0043] 31. Base body; 311. First creepage groove; 312. Second creepage groove; 313. Third creepage groove; 314. Fourth creepage groove; 315. Armature groove; 316. First retaining wall; 317. Second retaining wall; 318. Enclosing retaining wall;

[0044] 32. Housing component; 321. Encapsulation cavity; 322. First creepage rib; 323. Second creepage rib; 324. Third creepage rib; 325. Fourth creepage rib; 326. Third retaining wall; 327. Fourth retaining wall;

[0045] 40. Coil assembly; 41. First coil pin; 42. Second coil pin; 43. Core component. Detailed Implementation

[0046] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0047] 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.

[0048] 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.

[0049] 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.

[0050] 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. Where applicable, 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. Please refer to... Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the internal structure of a high-voltage relay 100 provided in an embodiment of this application. Figure 2 for Figure 1 The diagram shows the internal operating components of the high-voltage relay 100. The high-voltage relay 100 includes a first terminal pin 11, a second terminal pin 12, a first moving spring 13, a second moving spring 14, and a stationary spring connector 15.

[0051] The first end of the first moving spring 13 is in contact with the first terminal pin 11, and the first end of the second moving spring 14 is in contact with the second terminal pin 12. The first moving spring 13 and the second moving spring 14 are configured to have a conducting state and an open state.

[0052] like Figure 3 As shown, Figure 3 for Figure 1 The diagram shows the internal structure of a high-voltage relay 100 in the ON state. In the ON state, the second end of the first moving spring 13 and the second end of the second moving spring 14 are in contact with the stationary spring connector 15. This allows the first terminal 11 to be connected to the second terminal 12 via the first moving spring 13, the stationary spring connector 15, and the second moving spring 14, thereby energizing the circuit.

[0053] like Figure 2 As shown, in the open circuit state, the second end of the first moving spring 13 and the second end of the second moving spring 14 are spaced apart from the stationary spring connector 15. That is, the second end of the first moving spring 13 is spaced apart from the stationary spring connector 15, and the second end of the second moving spring 14 is also spaced apart from the stationary spring connector 15, thereby significantly improving the open circuit gap between the first wiring pin 11 and the second wiring pin 12 in the open circuit state.

[0054] Thus, compared to related technical solutions that use only one moving spring to switch between open and closed states, this application, based on the stationary spring connector 15, uses the switching and cooperation of the first moving spring 13 and the second moving spring 14 between the closed and closed states to increase the open gap between the first moving spring 13 and the second moving spring 14 and the stationary spring connector 15 by at least two times in the open state. This significantly increases the withstand voltage capability when the first wiring pin 11 and the second wiring pin 12 are in the open state. In other words, the high-voltage relay 100 of this application has high withstand voltage performance while maintaining the original size or a smaller size.

[0055] Based on this, in the process of applying the high-voltage relay 100 of this application, it is only necessary to connect the first connection pin 11 and the second connection pin 12 in series to the high-voltage circuit, so as to control and switch the conduction state and the open state of the high-voltage circuit through the coil or other means. The circuit connection is simple and it is easy to reduce the workload of circuit design.

[0056] The mechanism of action between the first moving spring 13 and the second moving spring 14 and the stationary spring connector 15 effectively doubles the opening gap between the first terminal pin 11 and the second terminal pin 12. This significantly increases the voltage withstand capability of the relay within the same volume. Even by adjusting the internal structure of the relay to increase the opening gap between the first moving spring 13 (or the second moving spring 14) and the stationary spring connector 15 in the open-circuit state, at least double the benefit can be achieved. For example, increasing the gap between the first moving spring 13 (or the second moving spring 14) and the stationary spring connector 15 by one centimeter in the same direction in the open-circuit state increases the overall opening gap by 2 centimeters. This facilitates the miniaturization design of the high-voltage relay 100.

[0057] Taking the relay in the relevant solution as a dual-channel switch structure as an example, the solution of this application sets a first moving spring 13 and a second moving spring 14 that are spaced apart along the first direction to replace the moving spring of the dual-channel switch to realize the action switching of the single-channel switch, thereby significantly improving the withstand voltage performance of the relay and facilitating the miniaturization design of the relay.

[0058] For example, such as Figure 1 and Figure 2 As shown, the high-voltage relay 100 also includes an armature 21 and a connecting member 22. The first moving spring 13 and the second moving spring 14 are located on opposite sides of the armature 21 along a first direction (such as the X direction, i.e., a straight line). Figure 4 The armature 21 is connected to the first moving spring 13 and the second moving spring 14 via the connecting member 22, so that the armature 21 can drive the first moving spring 13 and the second moving spring 14 to switch between the on and off states.

[0059] If the connecting member 22 can be an insulating component such as plastic, it can be thermoplastically cast to fix the second moving spring 14 and the first moving spring 13 sequentially to the left and right sides along the X direction (the side with the first moving spring 13 is the right side) of the armature 21, and the first moving spring 13 and the second moving spring 14 are spaced apart from the armature 21 along the X direction. This ensures good insulation between any two of the first moving spring 13, the second moving spring 14, and the armature 21 when the first moving spring 13 and the second moving spring 14 are fixedly connected.

[0060] Alternatively, the second moving spring 14 and the first moving spring 13 can be fixedly connected to the left and right sides of the armature 21 by means of a detachable connecting member. Along the length of the armature 21, a connecting member 22 can also be added to cover the length of the armature 21 to increase the effective area of ​​its insulating portion.

[0061] The armature 21 is configured to have a first position state and a second position state. Figure 3 In the first position shown, the armature 21 controls the first moving spring 13 and the second moving spring 14 to be in a conductive state via the connecting member 22. Figure 4 In the second position state shown, the armature 21 controls the first moving spring 13 and the second moving spring 14 to be in an open circuit state via the connecting member 22.

[0062] That is, by configuring the armature 21 and the connecting member 22, the armature 21 can be switched between a first position state and a second position state, thereby driving the first moving spring 13 and the second moving spring 14 to switch between a conducting state and a disconnected state.

[0063] In addition, by setting the connecting member 22 with insulating components, it is also beneficial to improve the strong and weak electrical insulation effect between the armature 21 and the two moving springs.

[0064] When the armature 21 switches between the first and second position states, it can be adjusted by rotation or sliding, without limitation. For example, the armature 21 can be moved between the first and second position states by means of an electromagnetic coil.

[0065] In some embodiments, the armature 21 is configured to rotate about an axis parallel to the X direction to switch between adjusting a first position state and a second position state. Thus, when the armature 21 is in the second position state, as... Figure 2As shown, the second end of the first moving spring 13 is spaced apart from the stationary spring connector 15 along the second direction (such as the Z direction, i.e., the straight direction), and the second end of the second moving spring 14 is spaced apart from the stationary spring connector 15 along the Z direction, so that the first moving spring 13 and the second moving spring 14 are in an open circuit state, at which time the high-voltage relay 100 disconnects the circuit connection.

[0066] Taking an armature 21 whose length direction is the front-to-back direction (Y direction), whose width direction is the left-to-right direction (X direction), and whose end rotates vertically (Z direction) when switching between the first and second position states as an example. The first moving spring 13 is located on the right side of the armature 21, and the end of the armature 21 closest to the stationary spring connector 15 is the front end. When the front end of the armature 21 rotates from the second position state to the first position state, it rotates downwards. When the armature 21 moves to the first position state, the front end of the armature 21 is positioned further forward.

[0067] When the armature 21 is in the first position, combined Figure 3 and Figure 5 , Figure 5 for Figure 3 The high-voltage relay 100 shown is in a top view, with the armature 21 and the stationary spring connector 15 completely misaligned.

[0068] Or, such as Figure 5 As shown, the first end and the second end of the stationary spring connector 15 are spaced apart from the armature 21 along a first direction. For example, the first end of the stationary spring connector 15 is located on the right side of the armature 21 and spaced apart from the armature 21, and the second end of the stationary spring connector 15 is located on the left side of the armature 21 and spaced apart from the armature 21.

[0069] Combination Figure 5 For example, the stationary spring connector 15 may be provided with a first contact 151 at its first end for contacting and connecting the first moving spring 13. The stationary spring connector 15 may be provided with a second contact 152 at its second end for contacting and connecting the second moving spring 14.

[0070] like Figure 5 As shown, the stationary spring connector 15 also includes a stationary spring connecting portion 153, which is connected between the first end and the second end along the X direction. The stationary spring connecting portion 153 is spaced apart from the armature 21 along the length direction (e.g., the Y direction) of the armature 21. For example, the stationary spring connecting portion 153 is located at the front end of the armature 21 and the two are spaced apart.

[0071] Thus, the stationary spring connector 15 is positioned along the Y-direction on one side of the armature 21, and the two are completely misaligned in a plane perpendicular to the Z-direction, meaning they do not contact each other and have a gap, thereby forming a circuit breaker gap to ensure good insulation between them. In this way, the stationary spring connector 15 does not need to be positioned on the upper side of the armature 21 along the Z-direction, and there is no need to increase the height of the relay to increase the circuit breaker gap between them in the vertical direction, which is beneficial for miniaturizing the relay's height.

[0072] In some embodiments, such as Figure 2 As shown, the high-voltage relay 100 also includes a coil assembly 40, through which a control signal is input to control the armature 21 to switch between a first position state and a second position state.

[0073] The high-voltage relay 100 can be configured as follows: Figure 2 In the normally open state shown, the coil assembly 40 is connected to a signal voltage to control the armature 21 to switch from the first position state to the second position state. Alternatively, the high-voltage relay 100 can also be configured as follows: Figure 3 As shown in the normally closed state, the coil assembly 40 is connected to a signal voltage to control the armature 21 to switch from the second position state to the first position state.

[0074] like Figure 2 and Figure 5 As shown, the coil assembly 40 includes an electromagnetic coil (not shown), a first coil pin 41, and a second coil pin 42. Alternatively, the coil assembly 40 may also include an iron core 43, on which the electromagnetic coil is at least partially wound to improve the magnetic attraction force. One end of the first coil pin 41 is connected to the electromagnetic coil, and one end of the second coil pin 42 is also connected to the electromagnetic coil, so that a signal voltage can be input through the first coil pin 41 and the second coil pin 42 to control the armature 21 to rotate or slide between a first position state and a second position state.

[0075] In some embodiments, such as Figure 1 and Figure 6 As shown, Figure 6 for Figure 1 The diagram shows a three-dimensional structure of the high-voltage relay 100 without an armature. The high-voltage relay 100 also includes a base body 31. (Refer to...) Figure 7 The high-voltage relay 100 also includes a housing 32, which has an encapsulation cavity 321, combined with... Figure 8 , Figure 8 This is a schematic diagram of the external structure of a high-voltage relay provided in an embodiment of this application. The housing 32 is used to accommodate the encapsulation base body 31 through the encapsulation cavity 321.

[0076] Among them, reference Figure 1 and Figure 6 The first terminal 11 and the second terminal 12 are spaced apart along a first direction (e.g., the X direction), and are positioned along the X direction near opposite sides of the base body 31, so that the first terminal 11 and the second terminal 12 maintain a good break gap when in an open-circuit state. A stationary spring connector 15 extends along the X direction to... Figure 5 Taking the conductive state as an example, the first moving spring 13 and the second moving spring 14 are connected in contact. The stationary spring connector 15 is provided at one end of the third direction (such as the Y direction, i.e., the straight direction) close to the base body 31, and when the first moving spring 13 (or the second moving spring 14) is in the conductive state, the third direction is the length direction of the first moving spring 13 (or the second moving spring 14).

[0077] Thus, by arranging the first wiring pin 11, the second wiring pin 12, the first moving spring 13, the second moving spring 14, and the stationary spring connector 15 along the Y direction near the end of the base body 31, the high-voltage operating component in the high-voltage relay 100 is arranged along the Y direction near one end, which helps to maintain a sufficient circuit-breaking gap between the high-voltage operating component and the coil pin in the Y direction, so that the structure has better stability.

[0078] Based on this, refer to Figure 2 and Figure 6 The end of the first connection pin 11 furthest from the first moving spring 13 (as shown below) and the other end of the first coil pin 41 (i.e., the end furthest from the electromagnetic coil, as shown below) are positioned on opposite sides of the base body 31 along the Y direction. Correspondingly, the end of the second connection pin 14 furthest from the second moving spring 14 (as shown below) and the other end of the second coil pin 42 (i.e., the end furthest from the electromagnetic coil, as shown below) are positioned on opposite sides of the base body 31 along the Y direction.

[0079] In related technical solutions, the first coil pin has multiple connection pins along the Y direction near the first wiring pin, such as normally open pins, common pins, and normally closed pins, which are high-voltage pins. This application simplifies this by providing only two coil pins and two wiring pins on the base body 31, positioned along the Y direction near both ends. This ensures sufficient spacing between the wiring pins (i.e., high-voltage pins) and the coil pins (i.e., low-voltage pins), which is beneficial for improving the overall voltage withstand rating of the relay.

[0080] Furthermore, the solution in this application significantly reduces the contact structure of the relay compared to the aforementioned related technologies. While saving raw materials and facilitating processing and production, the reduced number of pins also simplifies circuit design.

[0081] It should be noted that, in the embodiments of this application, as Figure 5 As shown, the middle part of the stationary spring connector 15 (i.e., the stationary spring connector 153) is spaced apart from the armature 21 and the core 43 along the Y direction and is located at one end of the base body 31.

[0082] Based on this, combined Figure 5 and Figure 6 Along the X direction, at least the middle portion of the static spring connector 15 is enclosed within the base body 31, and the base body 31 is an insulating component.

[0083] For example, the static spring connector 15 enclosed within the base body 31 can be positioned and installed by means of a snap-fit ​​limiting mechanism through the detachable structure of the base body 31, which facilitates production and assembly.

[0084] Alternatively, at least the middle portion of the stationary spring connector 15 can be embedded inside the base body 31 by injection molding. For example, the stationary spring connector 15 can be placed in a predetermined position before the base body 31 is injection molded, and then an integral component of the insulating plastic structure base body 31 and the stationary spring connector 15 can be obtained through injection molding. In this way, the base plastic layer covering the outside of the stationary spring connector 15 further improves the insulation effect between the stationary spring connector 15 (high-voltage component) and the armature 21 and the core 43, thereby improving the overall withstand voltage rating of the relay.

[0085] For the stationary spring connector 15, all parts except the first contact 151 and the second contact 152 can be covered by the base body 31. If the stationary spring connector 15 is embedded inside the base body 31 by injection molding, with only the first contact 151 and the second contact 152 exposed for contacting and connecting the first moving spring 13 and the second moving spring 14, it has better insulation effect and better pressure resistance.

[0086] like Figures 9 to 13 As shown, Figure 9 for Figure 8 The first cross-sectional view of the high-voltage relay 100 shown is shown. Figure 10 for Figure 9 A magnified view of a portion of point A in the diagram. Figure 11 for Figure 9 A magnified view of a portion of point B in the diagram. Figure 12 for Figure 9 A magnified view of a portion of point C in the middle. Figure 13 for Figure 9 A magnified view of a portion of point D.

[0087] In some embodiments, such as Figure 2 and Figure 6As shown, the portion of the first wiring pin 11 near the first moving spring member 13 is spaced apart from the stationary spring connector 15 along the Y direction. Along the X direction, the first wiring pin 11 is at least partially located on the first side of the base body 31. (Refer to...) Figure 6 and Figure 10 On one side of the base body 31 where the first wiring pin 11 is located, a first creepage groove 311 is provided between the first wiring pin 11 and the stationary spring connector 15. (Refer to...) Figure 7 and Figure 10 The outer casing 32 has a first creepage rib 322 on its inner wall near the encapsulation cavity 321. The first creepage rib 322 is fitted into the first creepage groove 311. This increases the creepage distance between the first wiring pin 11 and the stationary spring connector 15, such as... Figure 10 The dashed creepage path within the first creepage groove 311.

[0088] Through the insertion and adaptation of the first creepage groove 311 and the first creepage rib 322, the creepage distance between the first wiring pin 11 and the stationary spring connector 15 on the right side of the base body 31 will be increased by a certain distance, that is, a part of the concave path of the first creepage groove 311 (or a part of the convex path of the first creepage rib 322). In other words, by increasing the creepage distance between the first wiring pin 11 and the stationary spring connector 15 in the open circuit state, the withstand voltage rating between the two is improved.

[0089] Correspondingly, such as Figure 5 and Figure 11 As shown, the portion of the second wiring pin 12 near the second moving spring member 14 is spaced apart from the stationary spring connector 15 along the Y direction. Along the X direction, the second wiring pin 12 is at least partially located on the second side of the base body 31, and a second creepage groove 312 is provided on the side of the base body 31 where the second wiring pin 12 is located between the second wiring pin 12 and the stationary spring connector 15. Furthermore, the housing member 32 is located near the encapsulation cavity 321 (e.g., Figure 7 The inner wall of the part shown is provided with a second creepage rib 323, which is adapted to the second creepage groove 312. This increases the creepage distance between the second wiring pin 12 and the stationary spring connector 15. Figure 11 The dashed creepage path within the second creepage groove 312.

[0090] Through the insertion and adaptation of the second creepage groove 312 and the second creepage rib 323, the creepage distance between the second wiring pin 12 and the stationary spring connector 15 on the left side of the base body 31 will be increased by a certain distance, that is, a part of the concave path of the second creepage groove 312 (or a part of the convex path of the second creepage rib 323). In other words, by increasing the creepage distance between the second wiring pin 12 and the stationary spring connector 15 in the open-circuit state, the withstand voltage rating between them is improved. Thus, by increasing the creepage distance between the first wiring pin 11 and the stationary spring connector 15, and by increasing the creepage distance between the second wiring pin 12 and the stationary spring connector 15, the high-voltage relay 100 can maintain a stable open-circuit state in high-voltage circuits, allowing the relay to maintain a small size and stronger withstand voltage capability without increasing the structural dimensions of the relay in the Y direction.

[0091] Along the Y direction, at the other end of the base body 31, a structure to increase the creepage distance can also be provided between the coil pin and the moving spring.

[0092] like Figure 2 and Figure 6 As shown, along the X direction, the first coil pin 41 and the first wiring pin 11 are located on the same side of the base body 31. The first coil pin 41 and the first moving spring 13 are spaced apart and combined. Figure 12 The base body 31 has a third creepage groove 313 in the area between the first coil pin 41 and the first moving spring 13. Figure 7 The outer casing 32 has a third creepage rib 324 on its inner wall near the encapsulation cavity 321. The third creepage rib 324 is fitted into the third creepage groove 313. This increases the creepage distance between the first coil pin 41 and the first moving spring 13, such as... Figure 12 The dashed creepage path within the third creepage groove 313.

[0093] Through the insertion and adaptation of the third creepage groove 313 and the third creepage rib 324, the creepage distance between the first coil pin 41 and the first moving spring 13 on the right side of the base body 31 will be increased by a certain distance, that is, a part of the concave path of the third creepage groove 313 (or a part of the convex path of the third creepage rib 324). In other words, by increasing the creepage distance between the first coil pin 41 and the first moving spring 13 in the open circuit state, the withstand voltage level between the two is improved.

[0094] like Figure 2 and Figure 6 As shown, along the Y direction, the second coil pin 42 and the second wiring pin 12 are located on the same side of the base body 31. The second coil pin 42 and the second moving spring 14 are spaced apart and combined. Figure 13The base body 31 has a fourth creepage groove 314 in the area between the second coil pin 42 and the second moving spring 14, and the housing 32 is located near the encapsulation cavity 321 (e.g. Figure 7 The inner wall of the component (as shown) is provided with a fourth creepage rib 325, which is adapted to fit into the fourth creepage groove 314. This increases the creepage distance between the second coil pin 42 and the second moving spring 14, as shown. Figure 13 The dashed creepage path within the fourth creepage slot 314.

[0095] Through the insertion and adaptation of the fourth creepage groove 314 and the fourth creepage rib 325, the creepage distance between the second coil pin 42 and the second moving spring 14 on the left side of the base body 31 will be increased by a certain distance, that is, a part of the concave path of the fourth creepage groove 314 (or a part of the convex path of the fourth creepage rib 325). This increases the creepage distance between the fourth coil pin 42 and the second moving spring 14 in the open circuit state, thereby improving the withstand voltage rating between them.

[0096] The creepage distance between high-voltage circuits is increased by using the first creepage groove 311, the second creepage groove 312, the first creepage rib 322, and the second creepage rib 323, thereby improving the withstand voltage rating of the high-voltage circuit components. The creepage distance between the high-voltage circuit and the signal circuit is increased by using the third creepage groove 313, the fourth creepage groove 314, the third creepage rib 324, and the fourth creepage rib 325, thereby improving the withstand voltage rating between them. In summary, this allows the high-voltage relay 100 to have stronger withstand voltage capability while maintaining the same size, or further reducing the overall structural volume (i.e., miniaturized design).

[0097] It should be noted that the base body 31 and the outer casing 32 are assembled by insertion along the Z direction. That is, the lengths of the first creepage groove 311, the second creepage groove 312, the first creepage rib 322, the second creepage rib 323, the third creepage groove 313, the fourth creepage groove 314, the third creepage rib 324, and the fourth creepage rib 325 are respectively set parallel to the Z direction, so that when the base body 31 is inserted into the encapsulation cavity 321, the above-mentioned creepage grooves and creepage ribs can be sequentially inserted and adapted, which facilitates the production and assembly of the high-voltage relay 100.

[0098] In the above embodiment, the creepage groove is disposed on the outside of the base body 31, and the creepage rib is disposed on the inside of the outer shell 32.

[0099] Alternatively, creepage grooves can be placed inside the housing 32, and corresponding creepage ribs can be placed on the outside of the base body 31, which can also increase the creepage distance. In this case, the wall thickness of the housing 32 needs to be increased to ensure the stability of the structure.

[0100] In some embodiments, such as Figure 6As shown, the base body 31 is provided with an armature slot 315 for accommodating the armature component 21. The armature component 21 is positioned within the armature slot 315 by the armature slot 315, allowing it to rotate and switch between a first position and a second position, thereby adjusting the conducting or disconnecting state of the high-voltage relay 100. Based on this, by placing the battery coil and the iron core 43 near the armature slot 315, the electromagnetic coil can control the armature component 21 to switch between the first and second position states according to the signal voltage.

[0101] Among them, the stationary spring connector 15, the first moving spring 13, the second moving spring 14, the first wiring pin 11 and the second wiring pin 12 are arranged close to the armature slot 315 and located outside the armature slot 315, so that during the rotation switching of the armature 21 between the first position state and the second position state, the first moving spring 13 and the second moving spring 14 can be driven by the connecting member 22 to switch between the conducting state and the disconnecting state.

[0102] For example, such as Figure 6 and Figure 14 As shown, Figure 14 for Figure 8 The diagram shows a second cross-sectional view of the high-voltage relay. Along the X-direction, the first moving spring 13, the first terminal pin 11, and the first end of the stationary spring connector 15 are located on one side outside the armature slot 315 (e.g., the right side), and the base body 31 has a first baffle 316 at least between the first end of the stationary spring connector 15 and the armature slot 315. Along the X-direction, the second moving spring 14, the second terminal pin 12, and the second end of the stationary spring connector 15 are located on the other side outside the armature slot 315 (e.g., the left side), and the base body 31 has a second baffle 317 at least between the second end of the stationary spring connector 15 and the armature slot 315.

[0103] The first barrier 316 and the second barrier 317 are used to increase the isolation between the signal components in the armature slot 315 and the high-voltage components on the left and right sides of the armature slot 315, such as increasing the creepage distance, thereby improving the overall withstand voltage performance and rating of the relay.

[0104] In some embodiments, such as Figure 7 and Figure 14 As shown, the outer casing 32 is further provided with a third baffle 326 and a fourth baffle 327 on the side near the encapsulation cavity 321. When the base body 31 is located inside the encapsulation cavity 321, along the X direction, the third baffle 326 is inserted into the side of the first baffle 316 near or away from the armature slot 315, and the fourth baffle 327 is inserted into the side of the second baffle 317 near or away from the armature slot 315.

[0105] Thus, by inserting and assembling the first retaining wall 316, the third retaining wall 326, the second retaining wall 317, and the fourth retaining wall 327 along the Z direction, the creepage distance between the signal component inside the armature slot 315 and the high-voltage component outside the armature slot 315 includes an approximately S-shaped bending trajectory, thereby increasing the creepage distance between them and improving the overall withstand voltage performance and rating of the relay.

[0106] In addition, such as Figure 14 As shown, along the Y direction, the base body 31 has an armature groove 315 and a stationary spring connector 15 (or a stationary spring connector 153, such as...). Figure 5 A retaining wall 318 is also provided between the components shown. The two ends of the retaining wall 318 along the X direction can be connected to the first retaining wall 316 and the second retaining wall 317 to form a C-shaped retaining wall structure, thereby effectively isolating the components inside and outside the armature slot 315 and increasing the creepage distance.

[0107] Alternatively, two retaining walls 318 can be installed. One retaining wall 318 is located along the X direction on the side of the first retaining wall 316 away from the armature slot 315 and is connected to the first retaining wall 316 to form an L-shaped retaining wall structure that provides semi-enclosed isolation for the first moving spring 13 and the first contact 151. The other retaining wall 318 is located along the X direction on the side of the second retaining wall 317 away from the armature slot 315 and is connected to the second retaining wall 317 to form an L-shaped retaining wall structure that provides semi-enclosed isolation for the second moving spring 14 and the second contact 152. This also increases the creepage distance and withstand voltage rating between high-voltage components and signal components without increasing the size of the relay, resulting in a compact structure with a high withstand voltage rating.

[0108] For example, refer to Figure 7 , Figure 12 and Figure 13 Along the Z-direction, the height dimensions of the third creeper 324 and the fourth creeper 325 are slightly smaller than the height dimension of the housing component 32. (Refer to...) Figure 7 , Figure 10 and Figure 11 The height dimension of the first creeper 322 and the second creeper 323 along the Z direction is approximately half the height dimension of the outer casing 32.

[0109] Combination Figure 7 and Figure 14 Along the Z-direction, the height dimensions of the third retaining wall 326 and the fourth retaining wall 327 are approximately 1 / 4 of the height dimension of the outer shell 32. If the height dimensions of the third retaining wall 326 and the fourth retaining wall 327 are consistent, and greater than or equal to 1 / 5 of the height dimension of the outer shell 32, and less than or equal to 1 / 3 of the height dimension of the outer shell 32. Along the Y-line, the length dimensions of the third retaining wall 326 and the fourth retaining wall 327 are approximately 1 / 3 of the length dimension of the outer shell 32.

[0110] 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.

[0111] The above embodiments merely illustrate 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 high-voltage withstand relay, characterized in that, The high-voltage relay includes a first wiring pin (11), a second wiring pin (12), a first moving spring (13), a second moving spring (14), and a stationary spring connector (15). The first end of the first moving spring (13) is in contact with the first wiring pin (11), the first end of the second moving spring (14) is in contact with the second wiring pin (12), and the first moving spring (13) and the second moving spring (14) are configured to have a conducting state and an open state; In the conducting state, the second end of the first moving spring (13) is in contact with the first end of the stationary spring connector (15), and the second end of the second moving spring (14) is in contact with the second end of the stationary spring connector (15). In the open circuit state, the second end of the first moving spring (13) and the second end of the second moving spring (14) are spaced apart from the stationary spring connector (15).

2. The high-voltage relay according to claim 1, characterized in that, The high-voltage relay also includes: The armature (21), the first movable spring (13) and the second movable spring (14) are located on opposite sides of the armature (21) along a first direction; and The connecting member (22) is used to connect the armature (21) to the first moving spring (13) and the second moving spring (14). The armature (21) is configured to have a first position state and a second position state; in the first position state, the armature (21) controls the first moving spring (13) and the second moving spring (14) to be in the conducting state via the connecting member (22); in the second position state, the armature (21) controls the first moving spring (13) and the second moving spring (14) to be in the disconnected state via the connecting member (22).

3. The high-voltage relay according to claim 2, characterized in that, The first and second ends of the static spring connector (15) are spaced apart from the armature (21) along the first direction; The stationary spring connector (15) further includes a stationary spring connector (153), which is connected between the first end and the second end of the stationary spring connector (15) along the first direction, and the stationary spring connector (153) is spaced apart from the armature (21) along the length direction of the armature (21).

4. The high-voltage relay according to any one of claims 1 to 3, characterized in that, The high-voltage relay also includes: The base body (31) has a first wiring pin (11) and a second wiring pin (12) spaced apart along a first direction, and the first wiring pin (11) and the second wiring pin (12) are arranged close to opposite sides of the base body (31) along the first direction; and The outer casing (32) has an encapsulation cavity (321) for accommodating and encapsulating the base body (31). The stationary spring connector (15) extends along the first direction to contact and connect the first moving spring (13) and the second moving spring (14) in the conducting state; the stationary spring connector (15) is located at one end of the third direction close to the base body (31), and when the first moving spring (13) is in the conducting state, the third direction is the length direction of the first moving spring (13).

5. The high-voltage relay according to claim 4, characterized in that, Along the first direction, at least the middle portion of the static spring connector (15) is enclosed within the base body (31), and the base body (31) is an insulating component.

6. The high-voltage relay according to claim 4, characterized in that, The portion of the first wiring pin (11) near the first moving spring (13) is spaced apart from the stationary spring connector (15) along the third direction; along the first direction, the first wiring pin (11) is at least partially located on the first side of the base body (31), and the side of the base body (31) where the first wiring pin (11) is located has a first creepage groove (311) between the first wiring pin (11) and the stationary spring connector (15); the outer casing (32) has a first creepage rib (322) near the inner wall of the encapsulation cavity (321), and the first creepage rib (322) is plugged into and adapted to the first creepage groove (311); and / or, The portion of the second wiring pin (12) near the second moving spring (14) is spaced apart from the stationary spring connector (15) along the third direction; along the first direction, the second wiring pin (12) is at least partially located on the second side of the base body (31), and the side of the base body (31) where the second wiring pin (12) is provided has a second creepage groove (312) between the second wiring pin (12) and the stationary spring connector (15); the outer shell (32) has a second creepage rib (323) near the inner wall of the encapsulation cavity (321), and the second creepage rib (323) is plugged into and adapted to the second creepage groove (312).

7. The high-voltage relay according to claim 4, characterized in that, The high-voltage relay further includes a coil assembly (40), which comprises: Electromagnetic coil; The first coil pin (41) is connected at one end to the electromagnetic coil, and the end of the first wiring pin (11) away from the first moving spring (13) and the other end of the first coil pin (41) are arranged on opposite sides along the third direction near the base body (31); and The second coil pin (42) is connected to the electromagnetic coil at one end, and the end of the second pin away from the second moving spring (14) and the other end of the second coil pin (42) are arranged on opposite sides of the base body (31) along the third direction.

8. The high-voltage relay according to claim 7, characterized in that, Along the first direction, the first coil pin (41) and the first wiring pin (11) are located on the same side of the base body (31), the first coil pin (41) and the first moving spring (13) are spaced apart, and the base body (31) has a third creepage groove (313) in the area between the first coil pin (41) and the first moving spring (13); the outer casing (32) has a third creepage rib (324) near the inner wall of the encapsulation cavity (321), and the third creepage rib (324) is plugged into and adapted to the third creepage groove (313); and / or, Along the first direction, the second coil pin (42) and the second wiring pin (12) are located on the same side of the base body (31), the second coil pin (42) and the second moving spring (14) are spaced apart, the base body (31) is provided with a fourth creepage groove (314) in the area between the second coil pin (42) and the second moving spring (14); the outer shell (32) is provided with a fourth creepage rib (325) near the inner wall of the encapsulation cavity (321), the fourth creepage rib (325) is plugged into and adapted to the fourth creepage groove (314).

9. The high-voltage relay according to claim 7, characterized in that, The base body (31) is provided with an armature slot (315) for placing armature parts (21). Along the first direction, the first moving spring (13), the first wiring pin (11) and the first end of the stationary spring connector (15) are located on one side outside the armature groove (315), and the base body (31) has a first baffle (316) between the first end of the stationary spring connector (15) and the armature groove (315). Along the first direction, the second moving spring (14), the second wiring pin (12) and the second end of the stationary spring connector (15) are located on the other side outside the armature groove (315), and the base body (31) has a second baffle (317) at least between the second end of the stationary spring connector (15) and the armature groove (315).

10. The high-voltage relay according to claim 9, characterized in that, The outer casing (32) has a third baffle (326) and a fourth baffle (327) on the side near the encapsulation cavity (321). When the base body (31) is located in the encapsulation cavity (321), along the first direction, the third baffle (326) is inserted on the side of the first baffle (316) that is close to or far from the armature slot (315), and the fourth baffle (327) is inserted on the side of the second baffle (317) that is close to or far from the armature slot (315).

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