Relay with high withstand voltage

Abstract

The invention 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] The present application relates to the technical field of relays, and in particular to a high withstand voltage relay. Background Art

[0002] With the rapid development of the new energy industry, high-voltage DC applications are becoming more and more common, and the requirements for relays are becoming higher and higher. Miniaturized high-voltage relays are becoming more and more popular in the market, but traditional ultra-small signal relays have limited voltage resistance due to their size and structure. Therefore, when users actually use them, they will connect two contacts in series in the external circuit to improve the voltage resistance between the disconnected contacts, which will result in cumbersome circuit design. Summary of the invention

[0003] The purpose of the present application is to provide a high withstand voltage relay, aiming to provide a relay that is simple to use and has high withstand voltage performance.

[0004] In order to achieve the above objectives, this application adopts the following technical solutions:

[0005] Some embodiments of the present application provide a high withstand voltage relay including a first connection pin, a second connection pin, a first dynamic spring member, a second dynamic spring member and a static spring connector. The first end of the first dynamic spring member is in contact with the first connection pin, the first end of the second dynamic spring member is in contact with the second connection pin, and the first dynamic spring member and the second dynamic spring member are configured to have a conducting state and a disconnecting state.

[0006] In the conducting state, the second end of the first movable spring member is in contact and connection with the first end of the static spring connector, and the second end of the second movable spring member is in contact and connection with the second end of the static spring connector.

[0007] In the disconnected state, the second end of the first movable spring member and the second end of the second movable spring member are spaced apart from the static spring connector.

[0008] In some embodiments, the high withstand voltage relay further comprises an armature and a connecting member. The first movable spring member and the second movable spring member are located on opposite sides of the armature along the first direction, and the armature member is connected to the first movable spring member and the second movable spring member through the connecting member.

[0009] The armature is configured to have a first position state and a second position state. In the first position state, the armature controls the first movable spring member and the second movable spring member to be in a conducting state through the member. In the second position state, the armature controls the first movable spring member and the second movable spring member to be in a disconnecting state through the connecting member.

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

[0011] In some embodiments, the high withstand voltage relay further comprises a base body and a housing. The first wiring pin and the second wiring pin are arranged at intervals along a first direction, and the first wiring pin and the second wiring pin are arranged near opposite sides of the base body along the first direction. The housing is provided with a packaging cavity for accommodating the packaging base body.

[0012] The static spring connector is extended along the first direction to contact and connect the first movable spring and the second movable spring in the conductive state. The static spring connector is arranged along the third direction close to one end of the base body. When the first movable spring is in the conductive state, the third direction is the length direction of the first movable spring.

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

[0014] In some embodiments, a portion of the first connection pin close to the first dynamic spring member is spaced apart from the static spring connector along the third direction; along the first direction, the first connection pin is at least partially located on the first side of the base body, and a first creepage groove is provided between the first connection pin and the static spring connector on the side of the base body where the first connection pin is provided. The housing member is provided with a first creepage rib near the inner wall of the packaging cavity, and the first creepage rib is plugged and adapted with the first creepage groove.

[0015] In some embodiments, the portion of the second connection pin close to the second dynamic spring member is spaced apart from the static spring connector along the third direction; along the first direction, the second connection pin is at least partially located on the second side of the base body, and a second creepage groove is provided between the second connection pin and the static spring connector on the side of the base body where the second connection pin is provided. The housing member is provided with a second creepage rib near the inner wall of the packaging cavity, and the second creepage rib is plugged and adapted with the second creepage groove.

[0016] In some embodiments, the high withstand voltage relay further includes a coil assembly, the coil assembly including 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 one end of the first connection pin away from the first movable spring member and the other end of the first coil pin are arranged on opposite sides close to the base body along the third direction. One end of the second coil pin is connected to the electromagnetic coil, and one end of the second connection pin away from the second movable spring member and the other end of the second coil pin are arranged on opposite sides close to the base body along the third direction.

[0017] In some embodiments, along the first direction, the first coil pin and the first connection pin are located on the same side of the base body, the first coil pin is spaced apart from the first dynamic spring member, and the base body is provided with a third creepage groove in the area between the first coil pin and the first dynamic spring member. The housing member is provided with a third creepage rib near the inner wall of the packaging cavity, and the third creepage rib is plugged and adapted with the third creepage groove.

[0018] In some embodiments, along the first direction, the second coil pin and the second connection pin are located on the same side of the base body, the second coil pin and the second dynamic spring member are arranged at intervals, and the base body is provided with a fourth creepage groove in the area between the second coil pin and the second dynamic spring member. The housing member is provided with a fourth creepage rib near the inner wall of the packaging cavity, and the fourth creepage rib is plugged and adapted with the fourth creepage groove.

[0019] In some embodiments, the base body is provided with an armature slot for accommodating the armature member. Along the first direction, the first movable spring member, the first wiring pin, and the first end of the static spring connector are located on one side outside the armature slot, and the base body is provided with a first retaining wall at least between the first end of the static spring connector and the armature slot. Along the first direction, the second movable spring member, the second wiring pin, and the second end of the static spring connector are located on the other side outside the armature slot, and the base body is provided with a second retaining wall at least between the second end of the static spring connector and the armature slot.

[0020] In some embodiments, a third retaining wall and a fourth retaining wall are provided on a side of the housing member close to the packaging cavity. When the base body is located in the packaging cavity, along the first direction, the third retaining wall is inserted on a side of the first retaining wall close to or away from the armature slot, and the fourth retaining wall is inserted on a side of the second retaining wall close to and away from the armature slot.

[0021] Thus, in the high withstand voltage relay of the embodiment of the present application, in the on state, the second end of the first moving spring member and the second end of the second moving spring member are in contact and connected with the static spring connector, so that the first connection pin is connected to the second connection pin through the first moving spring member, the static spring connector and the second moving spring member in sequence, thereby connecting the circuit.

[0022] In the disconnected state, the second end of the first movable spring member and the second end of the second movable spring member are spaced apart from the static spring connector. That is, the second end of the first movable spring member is spaced apart from the static spring connector, and the second end of the second movable spring member is also spaced apart from the static spring connector, thereby significantly increasing the disconnected gap between the first connection pin and the second connection pin in the disconnected state.

[0023] Compared with the solution in the related technical solution that only switches the open circuit state and the conducting state through the action of a moving spring piece, the present application, on the basis of the static spring connector, switches and cooperates the first moving spring member and the second moving spring member between the conducting state and the open circuit state, so that the open circuit gap between the first moving spring member and the second moving spring member and the static spring connector in the open circuit state is increased to at least twice, thereby significantly increasing the open circuit gap between the first wiring pin and the second wiring pin when they are in the open circuit state to improve the voltage resistance, that is, the high-voltage relay of the present application has a higher voltage resistance performance while maintaining the original volume or a smaller volume. In the process of applying the above-mentioned high-voltage relay, it is only necessary to connect the first wiring pin and the second wiring pin in series to the high-voltage circuit, so that the conducting state and the open circuit state of the high-voltage circuit can be controlled and switched by means of a coil, etc. The line connection is simple and it is convenient to reduce the workload of circuit design. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 A schematic diagram of the internal structure of a high withstand voltage relay provided in an embodiment of the present application;

[0026] Figure 2 for Figure 1 The internal structure diagram of the high withstand voltage relay shown is in an open circuit state;

[0027] Figure 3 for Figure 1 The internal structure diagram of the high withstand voltage relay shown is in the on state;

[0028] Figure 4 for Figure 2 A schematic diagram of the connection structure between the armature member and the first and second movable spring members through a connecting member;

[0029] Figure 5 for Figure 3 A top view of the high withstand voltage relay shown;

[0030] Figure 6 for Figure 1 A three-dimensional structural schematic diagram of a high withstand voltage relay without an armature member is shown in FIG.

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

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

[0033] Fig. 9 for Figure 8 A first cross-sectional view of a high withstand voltage relay is shown;

[0034] Fig.10 for Fig. 9 A local enlarged schematic diagram of the middle A;

[0035] Fig.11 for Fig. 9 A partial enlarged schematic diagram of point B in the middle;

[0036] Fig.12 for Fig. 9 A partial enlarged schematic diagram of point C in the middle;

[0037] Fig.13 for Fig. 9 A partial enlarged schematic diagram of point D in the middle;

[0038] Fig.14 for Figure 8 A second cross-sectional view of a high withstand voltage relay is shown.

[0039] Reference numerals:

[0040] 100. High withstand voltage relay;

[0041] 11. first connection pin; 12. second connection pin; 13. first moving spring member; 14. second moving spring member; 15. static spring connection member; 151. first contact point; 152. second contact point; 153. static spring connection part;

[0042] 21. armature member; 22. connecting member;

[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. Shell member; 321. Encapsulation cavity; 322. First creeping tendon; 323. Second creeping tendon; 324. Third creeping tendon; 325. Fourth creeping tendon; 326. Third retaining wall; 327. Fourth retaining wall;

[0045] 40. Coil assembly; 41. First coil pin; 42. Second coil pin; 43. Iron core. DETAILED DESCRIPTION

[0046] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0047] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0048] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0049] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0050] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an element in the middle. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an element in the middle. If any, 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 implementation method. Please refer to Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the internal structure of a high withstand voltage relay 100 provided in an embodiment of the present application. Figure 2 for Figure 1 The schematic diagram of the internal operating components of the high voltage relay 100 is shown. The high voltage relay 100 comprises a first connection pin 11, a second connection pin 12, a first dynamic spring member 13, a second dynamic spring member 14 and a static spring connector 15.

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

[0052] like Figure 3 As shown, Figure 3 for Figure 1 The internal structure diagram of the high withstand voltage relay 100 shown is in the conducting state. In the conducting state, the second end of the first movable spring member 13 and the second end of the second movable spring member 14 are in contact and connected with the static spring connector 15. The first connection pin 11 is connected to the second connection pin 12 through the first movable spring member 13, the static spring connector 15 and the second movable spring member 14 in sequence, thereby connecting the circuit.

[0053] like Figure 2 As shown, in the disconnected state, the second end of the first movable spring member 13 and the second end of the second movable spring member 14 are spaced apart from the static spring connector 15. That is, the second end of the first movable spring member 13 is spaced apart from the static spring connector 15, and the second end of the second movable spring member 14 is also spaced apart from the static spring connector 15, thereby significantly increasing the disconnection gap between the first connection pin 11 and the second connection pin 12 in the disconnected state.

[0054] In this way, compared with the solution in the related technical solution that only switches the circuit-breaking state and the conducting state through the action of a moving spring piece, the present application, on the basis of the static spring connector 15, switches the first moving spring member 13 and the second moving spring member 14 between the conducting state and the circuit-breaking state, so that the circuit-breaking gap between the first moving spring member 13 and the second moving spring member 14 and the static spring connector 15 in the circuit-breaking state is increased to at least twice, thereby significantly increasing the voltage resistance between the first wiring pin 11 and the second wiring pin 12 when in the circuit-breaking state, that is, the high-voltage withstand relay 100 of the present application has a higher voltage resistance performance while maintaining the original volume or a smaller volume.

[0055] Based on this, in the process of applying the high-voltage relay 100 of the present application, it is only necessary to connect the first wiring pin 11 and the second wiring pin 12 in series to the high-voltage circuit, and the on-state and off-state of the high-voltage circuit can be controlled and switched through a coil or the like. The line connection is simple and it is convenient to reduce the workload of circuit design.

[0056] Among them, due to the action coordination structure of the first movable spring member 13, the second movable spring member 14 and the static spring connector 15, it is equivalent to increasing the circuit-breaking gap between the first wiring pin 11 and the second wiring pin 12 to two times. That is, in a relay of the same volume, the voltage resistance performance of the relay can be significantly increased. Even if the internal structure of the relay is adjusted to increase the circuit-breaking gap between the first movable spring member 13 (and the second movable spring member 14) and the static spring connector 15 in the circuit-breaking state to improve the voltage resistance performance, at least double the benefits can be obtained. For example, if the gap between the first movable spring member 13 (or the second movable spring member 14) and the static spring connector 15 is increased by one centimeter in the same direction in the circuit-breaking state, the overall circuit-breaking gap is increased by 2CM. It is conducive to the miniaturization design of the high-voltage relay 100.

[0057] Taking the relay in the related scheme as an example of a dual-way switch structure, the present application scheme arranges a first dynamic spring member 13 and a second dynamic spring member 14 spaced apart along a first direction to replace the dynamic spring of the dual-way switch to realize the action switching of a single-way switch, thereby significantly improving the voltage resistance performance of the relay and facilitating the miniaturization design of the relay.

[0058] For example, Figure 1 and Figure 2 As shown, the high withstand voltage relay 100 further includes an armature 21 and a connecting member 22. The first movable spring 13 and the second movable spring 14 are located on opposite sides of the armature 21 along a first direction (eg, X direction, i.e., a linear direction). Figure 4 The armature 21 is connected to the first movable spring 13 and the second movable spring 14 through the connecting member 22, so that the armature 21 can drive the first movable spring 13 and the second movable spring 14 to switch and adjust between the conducting state and the disconnecting state.

[0059] For example, the connecting member 22 may be an insulating member such as plastic, and the second movable spring member 14 and the first movable spring member 13 are sequentially fixedly connected to the left and right sides of the armature member 21 along the X direction (the side with the first movable spring member 13 is the right side) by thermoplastic casting, and the first movable spring member 13 and the second movable spring member 14 are spaced from the armature member 21 along the X direction. In the case of the first movable spring member 13 and the second movable spring member 14 being fixedly connected, any two of the first movable spring member 13, the second movable spring member 14 and the armature member 21 have a good insulation effect.

[0060] Alternatively, the second movable spring member 14 and the first movable spring member 13 may be fixedly connected to the left and right sides of the armature member 21 by a detachable connecting member. Along the length direction of the armature member 21, the connecting member 22 may be increased to cover the length portion of the armature member 21 to increase the effective area of ​​the insulating portion of the armature member 21.

[0061] The armature 21 is configured to have a first position state and a second position state. Figure 3 In the first position state shown in FIG. 1 , the armature member 21 controls the first movable spring member 13 and the second movable spring member 14 to be in a conducting state through the connecting member 22. Figure 4 In the second position state shown, the armature member 21 controls the first movable spring member 13 and the second movable spring member 14 to be in an open circuit state through the connecting member 22 .

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

[0063] In addition, by providing the connecting member 22 of the insulating member, it is also beneficial to improve the strong and weak electrical insulation effect between the armature member 21 and the two movable spring members.

[0064] The armature 21 can be switched between the first position and the second position by rotating or sliding, which is not limited to the above. For example, the armature 21 can be switched between the first position and the second position by configuring 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 the first position state and the second position state. Figure 2As shown, the second end of the first movable spring member 13 is spaced apart from the static spring connector 15 along the second direction (such as the Z direction, i.e., the straight direction), and the second end of the second movable spring member 14 is spaced apart from the static spring connector 15 along the Z direction, so that the first movable spring member 13 and the second movable spring member 14 are in an open circuit state, at which time the high voltage relay 100 disconnects the circuit connection.

[0066] Take the case where the length direction of the armature 21 is the front-to-back direction (i.e., the Y direction), the width direction of the armature 21 is the left-to-right direction (i.e., the X direction), and the end of the armature 21 rotates along the up-down direction (i.e., the Z direction) when the first position state and the second position state are switched. The first movable spring member 13 is located on the right side of the armature 21, the end of the armature 21 close to the static spring connector 15 is the front end, and the front end of the armature 21 rotates downward when rotating from the second position state to the first position state. When the armature 21 moves to the first position state, the front end of the armature 21 is arranged more forward.

[0067] When the armature 21 is in the first position, Figure 3 and Figure 5 , Figure 5 for Figure 3 A top view of the high withstand voltage relay 100 is shown, in which the armature member 21 and the static spring connecting member 15 are completely offset.

[0068] Or, if Figure 5 As shown, the first end and the second end of the static spring connector 15 are spaced apart from the armature 21 along the first direction. For example, the first end of the static 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 static 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 static spring connector 15 may be provided with a first contact 151 at the first end for contacting and connecting the first dynamic spring member 13. The static spring connector 15 may be provided with a second contact 152 at the second end for contacting and connecting the second dynamic spring member 14.

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

[0071] In this way, the static spring connector 15 is arranged on one side of the armature 21 along the Y direction, and the two are completely misaligned in a plane perpendicular to the Z direction, that is, the two do not contact each other and there is a gap, thereby forming a circuit-breaking gap to ensure a good insulation effect between the two. In this way, the static spring connector 15 does not need to be arranged on the upper side of the armature 21 along the Z direction, and there is no need to increase the height of the relay in order to increase the circuit-breaking gap between the two in the vertical direction, which is conducive to the miniaturization design of the relay in height.

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

[0073] The high withstand voltage relay 100 may be configured as follows: Figure 2 The normally open state shown in the figure, at this time, the coil assembly 40 is connected to the 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 In the normally closed state shown, 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 in the figure), 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. Among them, one end of the first coil pin 41 is connected to the electromagnetic coil, and one end of the second coil pin 42 is connected to the electromagnetic coil, so that a signal voltage is input through the first coil pin 41 and the second coil pin 42, thereby controlling the armature 21 to rotate or slide between the first position state and the second position state.

[0075] In some embodiments, Figure 1 and Figure 6 As shown, Figure 6 for Figure 1 The high-voltage relay 100 is a three-dimensional structural schematic diagram when the high-voltage relay is not provided with an armature member. The high-voltage relay 100 also includes a base body 31. Figure 7 The high withstand voltage relay 100 further includes a housing 32, the housing 32 having a packaging cavity 321, Figure 8 , Figure 8 This is a schematic diagram of the external structure of a high withstand voltage relay provided in an embodiment of the present application, wherein the housing 32 is used to accommodate the packaging base body 31 through the packaging cavity 321 .

[0076] Among them, refer to Figure 1 and Figure 6 The first connection pin 11 and the second connection pin 12 are arranged at intervals along a first direction (such as the X direction), and the first connection pin 11 and the second connection pin 12 are arranged near the opposite sides of the base body 31 along the X direction, so that the first connection pin 11 and the second connection pin 12 maintain a good circuit-breaking gap when they are in the circuit-breaking state. The static spring connector 15 is extended along the X direction to Figure 5 Taking the contact connection of the first movable spring member 13 and the second movable spring member 14 in the conductive state as an example, the static spring connector 15 is arranged near one end of the base body 31 in the third direction (such as the Y direction, i.e., the linear direction), and when the first movable spring member 13 (or the second movable spring member 14) is in the conductive state, the third direction is the length direction of the first movable spring member 13 (or the second movable spring member 14).

[0077] In this way, by arranging the first connecting pin 11, the second connecting pin 12, the first moving spring member 13, the second moving spring member 14 and the static spring connector 15 along the Y direction close to one end of the base body 31, the high-voltage relay 100 is arranged close to one end along the Y direction, which is beneficial for the high-voltage relay 100 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 , one end of the first connection pin 11 away from the first movable spring 13 (i.e., the lower end) and the other end of the first coil pin 41 (i.e., the end away from the electromagnetic coil, i.e., the lower end) are arranged on opposite sides of the base body 31 along the Y direction. Correspondingly, one end of the second connection pin 14 away from the second movable spring 14 (i.e., the lower end) and the other end of the second coil pin 42 (i.e., the end away from the electromagnetic coil, i.e., the lower end) are arranged on opposite sides of the base body 31 along the Y direction.

[0079] In the related technical scheme, a first coil pin is provided with a plurality of connection pins on one side close to the first wiring pin along the Y direction, such as a normally open pin, a common pin, a normally closed pin and other strong current pins. The present application scheme is simplified through the above-mentioned improvement, so that the base body 31 is only provided with two coil pins and two wiring pins and they are respectively arranged near both ends along the Y direction, so that the wiring pins (i.e., strong current pins) and the coil pins (i.e., weak current pins) can maintain a sufficient spacing, which is conducive to improving the overall withstand voltage level of the relay.

[0080] Furthermore, compared with the above-mentioned related technologies, the present application scheme significantly reduces the contact structure of the relay, which saves raw materials and facilitates processing and production. The reduced pins can also simplify the circuit design.

[0081] It should be noted that in the embodiments of the present application, Figure 5 As shown, the middle portion of the static spring connector 15 (ie, the static spring connector 153 ) is spaced apart from the armature member 21 and the core member 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 covered in the base body 31, and the base body 31 is an insulating component.

[0083] For example, the static spring connector 15 partially enclosed in the base body 31 can be installed and positioned by a detachable structure of the base body 31 through a snap-fit ​​limiter to facilitate production and assembly.

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

[0085] For the static spring connector 15, all parts except the first contact 151 and the second contact 152 can be covered by the base body 31. For example, the static spring connector 15 is embedded in the base body 31 by injection molding, and only the first contact 151 and the second contact 152 are exposed to contact and connect the first dynamic spring member 13 and the second dynamic spring member 14, which has a better insulation effect and a better withstand voltage rating.

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

[0087] In some embodiments, Figure 2 and Figure 6As shown, the first connection pin 11 is spaced apart from the static spring connector 15 along the Y direction near the first dynamic spring member 13. Along the X direction, the first connection pin 11 is at least partially located on the first side of the base body 31. Figure 6 and Fig.10 The first terminal pin 11 is disposed on one side of the base body 31 and a first creepage groove 311 is disposed between the first terminal pin 11 and the static spring connector 15. Figure 7 and Fig.10 The housing 32 is provided with a first creepage rib 322 near the inner wall of the packaging cavity 321, and the first creepage rib 322 is plugged and matched with the first creepage groove 311. Thus, the creepage distance between the first connection pin 11 and the static spring connector 15 is increased. Fig.10 The dotted creepage path in the first creepage groove 311.

[0088] Through the plug-in adaptation of the first creepage groove 311 and the first creepage rib 322, on the right side of the base body 31, the creepage distance between the first wiring pin 11 and the static spring connector 15 will be increased by a certain distance, that is, a concave part of the first creepage groove 311 (it can also be said that a convex part of the first creepage rib 322). That is, by increasing the creepage distance between the first wiring pin 11 and the static spring connector 15 in the disconnected state, the withstand voltage level between the two can be improved.

[0089] Correspondingly, such as Figure 5 and Fig.11 As shown, the second connection pin 12 is spaced from the static spring connector 15 along the Y direction. Along the X direction, the second connection pin 12 is at least partially located on the second side of the base body 31, and a second creepage groove 312 is provided between the second connection pin 12 and the static spring connector 15 on the side of the base body 31 where the second connection pin 12 is provided. Figure 7 The inner wall of the second creepage rib 323 is provided, and the second creepage rib 323 is plugged and adapted with the second creepage groove 312. Thus, the creepage distance between the second connection pin 12 and the static spring connector 15 is increased, as shown in FIG. Fig.11 The dotted creepage path in the second creepage groove 312.

[0090] Through the plug-in adaptation of the second creepage groove 312 and the second creepage rib 323, on the left side of the base body 31, the creepage distance between the second wiring pin 12 and the static spring connector 15 will be longer, that is, a part of the path of the second creepage groove 312 that is concave (it can also be said to be a part of the path of the second creepage rib 323 that is convex). That is, by increasing the creepage distance between the second wiring pin 12 and the static spring connector 15 in the off-circuit state, the voltage resistance level between the two is improved. In this way, by increasing the creepage distance between the first wiring pin 11 and the static spring connector 15, and increasing the creepage distance between the second wiring pin 12 and the static spring connector 15, the high-voltage relay 100 can maintain a stable off-circuit state in the high-voltage circuit, without increasing the structural dimensions of the relay in the Y direction, so that the relay can maintain a small volume and have a stronger voltage resistance.

[0091] Along the Y direction, at the other end of the base body 31 , a structure for increasing the creepage distance may also be provided between the coil pin and the dynamic spring member.

[0092] like Figure 2 and Figure 6 As shown, along the X direction, the first coil pin 41 and the first connection pin 11 are located on the same side of the base body 31, and the first coil pin 41 is spaced apart from the first dynamic spring member 13. Fig.12 The base body 31 is provided with a third creepage groove 313 in the area between the first coil pin 41 and the first dynamic spring member 13. Figure 7 The outer shell 32 is provided with a third creepage rib 324 near the inner wall of the packaging cavity 321, and the third creepage rib 324 is plugged and matched with the third creepage groove 313. Thus, the creepage distance between the first coil pin 41 and the first dynamic spring member 13 is increased. Fig.12 The dotted line creepage path in the third creepage groove 313.

[0093] Through the plug-in adaptation of the third creepage groove 313 and the third creepage rib 324, on the right side of the base body 31, the creepage distance between the first coil pin 41 and the first dynamic spring member 13 will be increased by a certain distance, that is, a part of the concave path of the third creepage groove 313 (it can also be said that a part of the convex path of the third creepage rib 324). That is, by increasing the creepage distance between the first coil pin 41 and the first dynamic spring member 13 in the disconnected 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, and the second coil pin 42 is spaced apart from the second dynamic spring member 14. Fig.13The base body 31 is provided with a fourth creepage groove 314 in the area between the second coil pin 42 and the second dynamic spring member 14, and the housing member 32 is provided with a fourth creepage groove 314 near the packaging cavity 321 (such as Figure 7 The inner wall of the second coil 42 is provided with a fourth creepage rib 325, and the fourth creepage rib 325 is plugged and matched with the fourth creepage groove 314. Thus, the creepage distance between the second coil pin 42 and the second dynamic spring member 14 is increased, as shown in FIG. Fig.13 The dotted creepage path in the fourth creepage groove 314.

[0095] Through the plug-in adaptation of the fourth creepage groove 314 and the fourth creepage rib 325, on the left side of the base body 31, the creepage distance between the second coil pin 42 and the second moving spring member 14 will be extended by a certain distance, that is, a concave portion of the fourth creepage groove 314 (or a convex portion of the fourth creepage rib 325). By increasing the creepage distance between the fourth coil pin 42 and the second moving spring member 14 in the disconnected state, the withstand voltage level between the two can be improved.

[0096] The creepage distance between the high-voltage circuits is increased by the first creepage groove 311, the second creepage groove 312, the first creepage tendon 322 and the second creepage tendon 323, thereby improving the withstand voltage level of the high-voltage circuit components. The creepage distance between the high-voltage circuit and the signal circuit is increased by the third creepage groove 313, the fourth creepage groove 314, the third creepage tendon 324 and the fourth creepage tendon 325, thereby improving the withstand voltage level between the two. In summary, the high-voltage relay 100 can ensure that the volume remains unchanged while having a stronger withstand voltage capability, or further reduce the overall structural volume (i.e., miniaturized design).

[0097] It should be noted that, since the base body 31 and the shell member 32 are plugged and assembled 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 arranged parallel to the Z direction, so that when the base body 31 is inserted into the packaging cavity 321, the creepage grooves and the creepage ribs can be plugged and adapted in sequence, which is convenient for the production and assembly of the high voltage relay 100.

[0098] In the above embodiment, the creepage groove is arranged on the outer side of the base body 31 , and the creepage rib is arranged on the inner side of the outer shell 32 .

[0099] Alternatively, creepage grooves may be provided inside the housing 32, and corresponding creepage ribs may be provided outside 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, Figure 6As shown, the base body 31 is provided with an armature slot 315 for placing the armature 21. The armature slot 315 is provided so that the armature 21 is positioned and placed in the armature slot 315, so as to rotate and switch between the first position state and the second position state, thereby adjusting the on state or the off state of the high withstand voltage relay 100. Based on this, by placing a battery coil and an iron core member 43 near the armature slot 315, the electromagnetic coil can control the armature 21 to switch between the first position state and the second position state according to the signal voltage.

[0101] Among them, the static spring connector 15, the first dynamic spring member 13, the second dynamic spring member 14, the first wiring pin 11 and the second wiring pin 12 are arranged close to the armature slot 315 and located on the outside of the armature slot 315, so that during the process of the armature member 21 rotating and switching between the first position state and the second position state, the first dynamic spring member 13 and the second dynamic spring member 14 can be driven to switch between the conductive state and the disconnecting state through the connecting component 22.

[0102] For example, Figure 6 and Fig.14 As shown, Fig.14 for Figure 8 The second cross-sectional view of the high withstand voltage relay is shown. Along the X direction, the first movable spring member 13, the first wiring pin 11 and the first end of the static spring connector 15 are located on one side (such as the right side) outside the armature slot 315, and the base body 31 is provided with a first retaining wall 316 at least between the first end of the static spring connector 15 and the armature slot 315. Along the X direction, the second movable spring member 14, the second wiring pin 12 and the second end of the static spring connector 15 are located on the other side (such as the left side) outside the armature slot 315, and the base body 31 is provided with a second retaining wall 317 at least between the second end of the static spring connector 15 and the armature slot 315.

[0103] The first retaining wall 316 and the second retaining wall 317 are provided to increase the degree of isolation between the signal components in the armature slot 315 and the strong current 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 grade of the relay.

[0104] In some embodiments, Figure 7 and Fig.14 As shown, the shell member 32 is further provided with a third retaining wall 326 and a fourth retaining wall 327 on one side close to the packaging cavity 321. When the base body 31 is located in the packaging cavity 321, along the X direction, the third retaining wall 326 is inserted on one side of the first retaining wall 316 close to or away from the armature slot 315, and the fourth retaining wall 327 is inserted on one side of the second retaining wall 317 close to or away from the armature slot 315.

[0105] In this way, 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 in the Z direction, the creepage distance between the signal component in the armature slot 315 and the strong current component outside the armature slot 315 includes an approximately S-shaped bending track, so as to increase the creepage distance between the two, thereby improving the overall withstand voltage performance and grade of the relay.

[0106] In addition, if Fig.14 As shown, along the Y direction, the base body 31 is located between the armature slot 315 and the static spring connector 15 (or the static spring connector 153, as shown in FIG. Figure 5 The two ends of the enclosing retaining wall 318 along the X direction can be connected with 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, the number of the enclosing retaining walls 318 can be two. One of the enclosing retaining walls 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 to semi-enclose and isolate the first movable spring member 13 and the first contact 151. The other enclosing 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 to semi-enclose and isolate the second movable spring member 14 and the second contact 152. It can also increase the creepage distance and withstand voltage level between the high-voltage components and the signal components without increasing the volume of the relay, and has a compact structure and a high withstand voltage level.

[0108] For example, refer to Figure 7 , Fig.12 and Fig.13 , along the Z direction, the height dimensions of the third creepage rib 324 and the fourth creepage rib 325 are slightly smaller than the height dimension of the housing 32. Figure 7 , Fig.10 and Fig.11 The height dimension of the first creeping rib 322 and the second creeping rib 323 along the Z direction is approximately half of the height dimension of the housing member 32 .

[0109] Combination Figure 7 and Fig.14 , along the Z direction, the height of the third retaining wall 326 and the fourth retaining wall 327 is approximately 1 / 4 of the height of the shell 32. For example, the height of the third retaining wall 326 and the fourth retaining wall 327 is consistent, and is greater than or equal to 1 / 5 of the height of the shell 32, and less than or equal to 1 / 3 of the height of the shell 32. Along the Y defense line, the length of the third retaining wall 326 and the fourth retaining wall 327 is approximately 1 / 3 of the length of the shell 32.

[0110] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, 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 only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A high withstand voltage relay, characterized in that: The high withstand voltage relay comprises a first connection pin (11), a second connection pin (12), a first moving spring member (13), a second moving spring member (14) and a static spring connector (15); The first end of the first movable spring member (13) is in contact with and connected to the first connection pin (11), the first end of the second movable spring member (14) is in contact with and connected to the second connection pin (12), and the first movable spring member (13) and the second movable spring member (14) are configured to have a conducting state and a disconnecting state; In the conducting state, the second end of the first movable spring member (13) is in contact with and connected to the first end of the static spring connector (15), and the second end of the second movable spring member (14) is in contact with and connected to the second end of the static spring connector (15); In the disconnected state, the second end of the first movable spring member (13) and the second end of the second movable spring member (14) are spaced apart from the static spring connector (15).

2. The high withstand voltage relay according to claim 1, characterized in that: The high withstand voltage relay also includes: An armature member (21), wherein the first movable spring member (13) and the second movable spring member (14) are located on opposite sides of the armature member (21) along a first direction; and A connecting member (22), wherein the armature member (21) is connected to the first movable spring member (13) and the second movable spring member (14) via the connecting member (22); 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 movable spring (13) and the second movable spring (14) to be in the conducting state via the connecting member (22); in the second position state, the armature (21) controls the first movable spring (13) and the second movable spring (14) to be in the disconnecting state via the connecting member (22).

3. The high withstand voltage relay according to claim 2, characterized in that: The first end and the second end of the static spring connecting member (15) are spaced apart from the armature member (21) along the first direction; The static spring connecting member (15) further comprises a static spring connecting portion (153), wherein the static spring connecting portion (153) is connected between a first end and a second end of the static spring connecting member (15) along the first direction, and the static spring connecting portion (153) is spaced apart from the armature member (21) along the length direction of the armature member (21).

4. The high withstand voltage relay according to any one of claims 1 to 3, characterized in that: The high withstand voltage relay also includes: A base body (31), wherein the first connection pin (11) and the second connection pin (12) are arranged at intervals along a first direction, and the first connection pin (11) and the second connection pin (12) are arranged close to opposite sides of the base body (31) along the first direction; and A shell member (32), wherein the shell member (32) is provided with a packaging cavity (321) for accommodating and packaging the base body (31); The static spring connector (15) is extended along the first direction to contact and connect the first movable spring member (13) and the second movable spring member (14) in the conductive state; the static spring connector (15) is arranged along a third direction close to one end of the base body (31); when the first movable spring member (13) is in the conductive state, the third direction is the length direction of the first movable spring member (13).

5. The high withstand 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 in the base body (31), and the base body (31) is an insulating component.

6. The high withstand voltage relay according to claim 4, characterized in that: The portion of the first connection pin (11) close to the first movable spring member (13) is spaced apart from the static spring connector (15) along the third direction; along the first direction, the first connection pin (11) is at least partially located on the first side of the base body (31); a first creepage groove (311) is provided between the first connection pin (11) and the static spring connector (15) on the side of the base body (31) where the first connection pin (11) is provided; the housing member (32) is provided with a first creepage rib (322) at an inner wall close to the packaging cavity (321); the first creepage rib (322) is plugged and adapted to the first creepage groove (311); and / or, The portion of the second connection pin (12) close to the second movable spring member (14) is spaced apart from the static spring connector (15) along the third direction; along the first direction, the second connection pin (12) is at least partially located on the second side of the base body (31); a second creepage groove (312) is provided between the second connection pin (12) and the static spring connector (15) on one side of the base body (31) where the second connection pin (12) is provided; and the housing member (32) is provided with a second creepage rib (323) at an inner wall close to the packaging cavity (321); the second creepage rib (323) is plug-fitted with the second creepage groove (312).

7. The high withstand voltage relay according to claim 4, characterized in that: The high withstand voltage relay further comprises a coil assembly (40), wherein the coil assembly (40) comprises: Solenoid coil; A first coil pin (41), one end of which is connected to the electromagnetic coil, and an end of the first wiring pin (11) away from the first movable spring member (13) and the other end of the first coil pin (41) are arranged on opposite sides close to the base body (31) along the third direction; and One end of the second coil pin (42) is connected to the electromagnetic coil, and one end of the second connecting pin away from the second movable spring member (14) and the other end of the second coil pin (42) are arranged on opposite sides close to the base body (31) along the third direction.

8. The high withstand 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 movable spring member (13) are arranged at intervals, and the base body (31) is provided with a third creepage groove (313) in the area between the first coil pin (41) and the first movable spring member (13); the outer shell member (32) is provided with a third creepage rib (324) at the inner wall close to the packaging cavity (321), and the third creepage rib (324) is plugged and adapted with the third creepage groove (313); and / or, Along the first direction, the second coil pin (42) and the second connection pin (12) are located on the same side of the base body (31); the second coil pin (42) and the second movable spring member (14) are arranged at intervals; the base body (31) is provided with a fourth creepage groove (314) in the area between the second coil pin (42) and the second movable spring member (14); the outer shell member (32) is provided with a fourth creepage rib (325) at the inner wall close to the packaging cavity (321); the fourth creepage rib (325) is plugged and adapted to the fourth creepage groove (314).

9. The high withstand voltage relay according to claim 7, characterized in that: The base body (31) is provided with an armature groove (315) for accommodating the armature piece (21); Along the first direction, the first movable spring member (13), the first wiring pin (11) and the first end of the static spring connector (15) are located on one side outside the armature slot (315), and the base body (31) is provided with a first retaining wall (316) at least between the first end of the static spring connector (15) and the armature slot (315); Along the first direction, the second movable spring member (14), the second wiring pin (12) and the second end of the static spring connector (15) are located on the other side outside the armature slot (315), and the base body (31) is provided with a second retaining wall (317) at least between the second end of the static spring connector (15) and the armature slot (315).

10. The high withstand voltage relay according to claim 9, characterized in that: A third retaining wall (326) and a fourth retaining wall (327) are provided on one side of the outer shell (32) close to the packaging cavity (321); When the base body (31) is located in the packaging cavity (321), along the first direction, the third retaining wall (326) is inserted into a side of the first retaining wall (316) close to or away from the armature slot (315), and the fourth retaining wall (327) is inserted into a side of the second retaining wall (317) close to the side away from the armature slot (315).

Images