Moving contact assembly, switching device and vehicle

Abstract

The utility model relates to a moving contact assembly, a switching device and a vehicle, the moving contact assembly comprises a connecting frame, a first connecting bridge and a second connecting bridge, a part of the first connecting bridge is located in the connecting frame, and the other part of the first connecting bridge is located outside the connecting frame and is provided with two moving contacts; the second connecting bridge is used for being connected with a driving assembly of the switching device and connected with the first connecting bridge through an elastic piece. One of the first connecting bridge and the second connecting bridge is connected with the connecting frame, and the other one can abut against the inner wall of the connecting frame under the elastic force effect of the elastic piece. According to the invention, the elastic piece between the first connecting bridge and the second connecting bridge has a certain pre-tightening force, so that the stability of the elastic piece before the movable contact and the static contact are connected is ensured, the situation of poor contact of the switch is reduced or even avoided, in addition, the movable contact assembly can form a stable whole after being combined in this way, and the service life of the movable contact assembly is prolonged. And the subsequent assembly of the switch device is facilitated.

Description

Technical Field

[0001] The present disclosure relates to the field of switches, and in particular, to a moving contact assembly, a switch device and a vehicle. Background Art

[0002] The moving contact of the moving contact assembly in the switch is used to connect with the static contact to achieve the connection of the switch. At present, the stability of the moving contact and the static contact after connection is not good, and poor contact between the two may occur, thereby affecting the normal use of the switch. Utility Model Content

[0003] The purpose of the present disclosure is to provide a moving contact assembly, a switch device and a vehicle to ensure the stability of the connection between the moving contact and the static contact, thereby at least partially solving the above technical problems.

[0004] In order to achieve the above-mentioned purpose, the first aspect of the present disclosure provides a moving contact assembly, including: a connecting frame; a first connecting bridge, part of which is located in the connecting frame, and the other part is located outside the connecting frame and has two moving contacts; and a second connecting bridge, which is used to be connected to a driving assembly of a switching device, at least part of the second connecting bridge is located in the connecting frame and is connected to the first connecting bridge through an elastic member; one of the first connecting bridge and the second connecting bridge is connected to the connecting frame, and the other can be pressed against the inner wall of the connecting frame under the elastic force of the elastic member.

[0005] Optionally, a barrier member located between the two moving contacts is provided on the connecting frame to block an arc between the two moving contacts.

[0006] Optionally, the first connecting bridge is connected to the inner wall of the connecting frame, the moving contact is located on a side of the first connecting bridge close to the barrier, and the side of the second connecting bridge facing away from the barrier is connected to the driving assembly and can be against the inner wall of the connecting frame under the elastic force of the elastic member.

[0007] Optionally, at least part of the barrier member abuts against a side of the first connecting bridge close to the barrier member, and a projection of the barrier member in the first direction can cover two opposite side walls of the first connecting bridge in the second direction.

[0008] Optionally, the second connecting bridge is connected to the inner wall of the connecting frame and the side of the second connecting bridge facing away from the barrier is connected to the driving assembly, and the side of the first connecting bridge close to the barrier has the moving contact and can be against the inner wall of the connecting frame under the elastic force of the elastic member.

[0009] Optionally, there is a groove between the two moving contacts on the first connecting bridge, extending from the side close to the barrier to the side away from the barrier, and the two sides of the barrier extend into the groove respectively to abut against the side of the groove close to the moving contact and at least part of the barrier can fit with the opposite side walls of the groove in the second direction.

[0010] Optionally, the second connecting bridge is provided with a first connecting groove for connecting to a driving rod of the driving assembly, and the connecting frame is provided with a second connecting groove corresponding to the first connecting groove.

[0011] Optionally, a connecting structure for connecting the barrier member and a limiting structure for limiting the rotation of the barrier member are provided on the connecting frame.

[0012] Optionally, two elastic members are provided, and the two elastic members are arranged in a one-to-one correspondence with the two moving contacts.

[0013] According to a second aspect of the present disclosure, a switching device is provided, comprising: a stationary contact assembly, two of which are configured, including a stationary terminal, a stationary contact and a connecting section for connecting the stationary terminal and the stationary contact; an arc extinguishing assembly, which is arranged on the adjacent side of the two stationary contact assemblies and is used to extinguish the arc; a driving assembly; and the above-mentioned moving contact assembly, wherein the two stationary contact assemblies are symmetrically arranged with respect to the moving contact assembly so that the two moving contacts on the moving contact assembly can be arranged corresponding to the stationary contacts on the two stationary contact assemblies, and the driving assembly is connected to the second connecting bridge.

[0014] Optionally, the driving assembly includes a driving part and a driving rod connected to the driving part, the driving part is configured as a bistable electromagnet, and the driving rod is connected to the second connecting bridge.

[0015] Optionally, the switching device also includes a shell, which includes a cavity capable of accommodating the static contact assembly, the arc extinguishing assembly, the drive assembly and the moving contact assembly, and an opening that connects the cavity with the outside of the shell, and a blocking member capable of covering at least part of the first opening is provided in the cavity.

[0016] Optionally, a plurality of the blocking members are provided, and the plurality of the blocking members are spaced apart in a direction away from the opening.

[0017] Optionally, at least one of the blocking members is provided with a plurality of through holes opened in a direction away from the opening; and the through holes of at least two adjacent blocking members are arranged in a staggered manner.

[0018] According to a third aspect of the present disclosure, a vehicle is provided, comprising the above-mentioned switch device.

[0019] Through the above technical scheme, partial areas of the first connecting bridge and the second connecting bridge of the present invention are arranged in the connecting frame and one of them is against the inner wall of the connecting frame, so that the elastic member between the first connecting bridge and the second connecting bridge has a certain pre-tightening force, thereby ensuring the stability of the elastic member before the moving contact is connected to the static contact, and then the moving contact and the static contact can be stably connected, reducing or even avoiding the occurrence of poor switch contact. In addition, the moving contact assembly can form a stable whole after being combined in this way, which is convenient for the subsequent assembly of the switch device.

[0020] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0022] Figure 1 is a structural schematic diagram of a first embodiment of a moving contact assembly provided by an embodiment of the present disclosure;

[0023] Figure 2 is a structural schematic diagram of a second embodiment of a moving contact assembly provided in an embodiment of the present disclosure;

[0024] Figure 3 is a schematic diagram of the structure of a connecting frame provided by an embodiment of the present disclosure;

[0025] Figure 4 is a schematic structural diagram of a second connection bridge provided in an embodiment of the present disclosure;

[0026] Figure 5 is a schematic diagram of the structure of a switch device provided by an embodiment of the present disclosure from a first perspective;

[0027] Figure 6 is a schematic diagram of the structure of the switch device provided by the embodiment of the present disclosure from a second viewing angle;

[0028] Figure 7 is a schematic structural diagram of a switch device provided by an embodiment of the present disclosure from a third viewing angle;

[0029] Figure 8 It is a schematic diagram of the structure of a driving component of a switch device provided in an embodiment of the present disclosure.

[0030] Description of Reference Numerals

[0031] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0032] 1-connecting frame; 11-second connecting groove; 12-connecting structure; 13-limiting structure; 2-blocking member; 3-first connecting bridge; 31-moving contact; 32-groove; 4-second connecting bridge; 41-first connecting groove; 5-elastic member; 6-static contact assembly; 61-static terminal; 62-static contact; 63-connecting section; 7-arc extinguishing assembly; 8-driving assembly; 81-driving part; 82-driving rod; 83-yoke; 84-coil; 85-static iron core; 86-moving iron core; 87-permanent magnet; 9-housing; 91-cavity; 92-opening; 10-blocking member; 1001-through hole; A-first direction; B-second direction. DETAILED DESCRIPTION

[0033] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0034] In the present disclosure, unless otherwise stated, directional words such as "inside" and "outside" refer to the "inside" and "outside" relative to the contour of the corresponding component itself; the "first direction" of the present disclosure is parallel to the moving direction of the moving contact, and the "second direction" is perpendicular to the moving direction of the moving contact. Figure 2 In addition, the terms "first", "second", etc. used in the present disclosure are intended to distinguish one element from another and do not have order or importance. In addition, in the following description, when referring to the drawings, unless otherwise explained, the same figure numbers in different drawings represent the same or similar elements. The above definitions are only used to explain and illustrate the present disclosure and should not be understood as limitations on the present disclosure.

[0035] The moving contact assembly and the switch device in exemplary embodiments of the present disclosure will be described below with reference to the accompanying drawings.

[0036] like Figures 1 to 8As shown, in the first aspect of the present disclosure, there is provided a moving contact assembly, including a connecting frame 1, a first connecting bridge 3 and a second connecting bridge 4, wherein a portion of the first connecting bridge 3 is located inside the connecting frame 1, and the other portion is located outside the connecting frame 1 and has two moving contacts 31; the second connecting bridge 4 is used to be connected to a driving assembly 8 of a switching device, at least a portion of the second connecting bridge 4 is located inside the connecting frame 1 and is elastically connected to the first connecting bridge 3 through an elastic member 5; one of the first connecting bridge 3 and the second connecting bridge 4 is connected to the connecting frame 1, and the other can be pressed against the inner wall of the connecting frame 1 under the elastic force of the elastic member 5. The connecting frame 1 can be constructed as a columnar structure with a cavity, and a connecting port communicating with the outside of the connecting frame 1 is opened on the opposite side walls of the cavity. The first connecting bridge 3 and the second connecting bridge 4 can pass through the connecting frame 1 through the connecting port, so that the middle parts of the first connecting bridge 3 and the second connecting bridge 4 can be located in the connecting frame 1, and one of the first connecting bridge 3 and the second connecting bridge 4 can be against the inner wall of the connecting frame 1 under the action of the elastic member 5. Based on this, the connecting frame 1 can give a certain pressure to the elastic member 5, so that the elastic member 5 itself has a certain pre-tightening force, so that in the process of the driving assembly 8 driving the second connecting bridge 4 to move, the elastic member 5 can still have good stability, thereby ensuring that the moving contact 31 and the static contact 62 can be stably connected, reducing or even avoiding the occurrence of poor switch contact. In addition, the moving contact assembly can form a stable whole after being combined in this way, which is convenient for the subsequent assembly of the switching device.

[0037] In some embodiments of the present disclosure, a barrier 2 is provided on the connecting frame 1 between the two moving contacts 31 to block the arc between the two moving contacts 31. The barrier 2 can prevent the moving contacts 31 on both sides thereof from meeting the arc generated when they are separated from the static contact 62, thereby improving the safety of the switch.

[0038] It should be noted that the elastic member 5 of the present disclosure can be configured as a spring, and the barrier member 2 can be configured as an insulating member made of a hard material such as ceramic, plastic, rubber, etc.

[0039] In some embodiments of the present disclosure, the first connecting bridge 3 is connected to the inner wall of the connecting frame 1, the moving contact 31 is located on the side of the first connecting bridge 3 close to the barrier 2, and the side of the second connecting bridge 4 facing away from the barrier 2 is connected to the driving assembly 8 and can be against the inner wall of the connecting frame 1 under the elastic force of the elastic member 5. That is, the first connecting bridge 3 and the connecting frame 1 form a whole, so when the driving component 8 drives the second connecting bridge 4 to move toward the side of the static contact 62, the first connecting bridge 3 and the connecting frame 1 will also move with the second connecting bridge 4 under the action of the elastic member 5 until the moving contact 31 on the first connecting bridge 3 is connected with the static contact 62. At this time, since the elastic member 5 has a certain pre-tightening force, it can make the moving contact 31 on the first connecting bridge 3 stably connected with the static contact 62. Then the driving component 8 continues to drive the second connecting bridge 4 to move, and the elastic member 5 continues to be compressed. Under the action of the elastic force of the elastic member 5, the first connecting bridge 3 ensures that the moving contact 31 can be tightly connected with the static contact 62. Based on this, the occurrence of poor contact of the switching device is reduced.

[0040] In this embodiment, at least part of the barrier 2 abuts against the side of the first connection bridge 3 close to the barrier 2, and the projection of the barrier 2 in the first direction A can cover the opposite side walls of the first connection bridge 3 in the second direction B. Since the first connection bridge 3 is connected to the connection frame 1, after the moving contact 31 and the static contact 62 are connected, the barrier 2 on the connection frame 1 will no longer move with the second connection bridge 4, and when the moving contact 31 and the static contact 62 are separated, that is, when the driving assembly 8 drives the second connection bridge 4 away from the static contact 62, an arc will be formed between the moving contact 31 and the static contact 62, and the barrier 2 located between the two moving contacts 31 can block the arcs on both sides thereof, so as to avoid the arcs on both sides of the barrier 2 from meeting and exploding, thereby ensuring the safety of the switch device.

[0041] In still other embodiments, the second connecting bridge 4 is connected to the inner wall of the connecting frame 1 and the side of the second connecting bridge 4 facing away from the barrier 2 is connected to the driving assembly 8, and the side of the first connecting bridge 3 close to the barrier 2 has a moving contact 31 and can be against the inner wall of the connecting frame 1 under the elastic force of the elastic member 5. That is, the second connecting bridge 4 and the connecting frame 1 form a whole, so that when the driving component 8 drives the second connecting bridge 4 to move toward the side of the static contact 62, the connecting frame 1 will move with the second connecting bridge 4, and the first connecting bridge 3 will move with the second connecting bridge 4 under the action of the elastic member 5 until the moving contact 31 on the first connecting bridge 3 is connected with the static contact 62. Similarly, since the elastic member 5 has a certain pre-tightening force, it can make the moving contact 31 on the first connecting bridge 3 stably connected with the static contact 62. Then the driving component 8 continues to drive the second connecting bridge 4 to move. At this time, the connecting frame 1 will move with the second connecting bridge 4, and the moving contact 31 on the first connecting bridge 3 will not move because it is against the static contact 62. As the second connecting bridge 4 continues to move, the elastic member 5 is compressed. The first connecting bridge 3 is ensured to be tightly connected with the static contact 62 under the elastic force of the elastic member 5. Based on this, the occurrence of poor contact of the switching device is reduced.

[0042] In order to prevent the appearance of a gap between the barrier 2 and the second connecting bridge 4 that can allow arcs on both sides of the barrier 2 to meet during the process of the connecting frame 1 moving together with the second connecting bridge 4, a groove 32 extending from the side close to the barrier 2 to the side away from the barrier 2 is provided between the two moving contacts 31 on the first connecting bridge 3 of the present disclosure, and the two sides of the barrier 2 extend into the groove 32 respectively to abut against the side of the groove 32 close to the moving contact 31, and at least part of the barrier 2 can fit with the opposite side walls of the groove 32 in the second direction B. The groove 32 can accommodate part of the barrier 2, so that when the moving contact 31 contacts the static contact 62 and the second connecting bridge 4 moves together with the connecting frame 1, part of the barrier 2 can gradually move out of the groove 32, and in this process, the barrier 2 can still play a good role in isolating the arcs on both sides thereof, so as to avoid the occurrence of explosions due to arc encounters.

[0043] Of course, the distance that the second connecting bridge 4 moves after the moving contact 31 contacts the stationary contact 62 can be less than the depth of the groove 32 to ensure that the side of the barrier 2 can always be located in the groove 32, thereby preventing the arcs on both sides from meeting each other.

[0044] In some embodiments of the present disclosure, the second connecting bridge 4 is provided with a first connecting groove 41 for connecting with the driving rod 82 of the driving assembly 8, and the connecting frame 1 is provided with a second connecting groove 11 corresponding to the first connecting groove 41. The first connecting groove 41 can facilitate the driving rod 82 of the driving assembly 8 to directly pass through the first connecting groove 41 and enter the second connecting groove 11 when the moving contact assembly is assembled with the driving assembly 8, thereby completing the assembly operation conveniently and quickly, and improving the assembly efficiency of the switch device.

[0045] Specifically, the first connection groove 41 and the second connection groove 11 may be configured as T-shaped grooves.

[0046] In addition, in order to facilitate the connection between the connecting frame 1 and the barrier 2, the connecting frame 1 is provided with a connecting structure 12 for connecting the barrier 2 and a limiting structure 13 for limiting the rotation of the barrier 2. In this way, the stability of the barrier 2 after being connected to the connecting frame 1 can be ensured to ensure its barrier effect, and to avoid the gap between the barrier 2 and the first connecting bridge 3 due to looseness or shaking, thereby causing the arcs on both sides of the barrier 2 to meet and explode. The connecting structure 12 and the limiting structure 13 can be arranged at intervals, wherein the connecting structure 12 can be one of the connecting rod and the connecting hole, and correspondingly, the barrier 2 can be provided with the other of the connecting rod and the connecting hole, so as to facilitate the connection between the barrier 2 and the connecting frame 1; similarly, the limiting structure 13 can be configured as one of the limiting rod and the limiting hole, and correspondingly, the barrier 2 can be provided with one of the limiting rod and the limiting hole, so that the limiting structure 13 can work together with the connecting structure 12 to limit the rotation of the barrier 2.

[0047] In some other embodiments, two elastic members 5 may be provided, and the two elastic members 5 are arranged in one-to-one correspondence with the two moving contacts 31. That is, the centers of one elastic member 5 and one moving contact 31 are on the same axis parallel to the first direction A, and are located on one side of the barrier 2; the centers of another elastic member 5 and another moving contact 31 are on another same axis parallel to the first direction A, and are located on the other side of the barrier 2, so as to ensure that the elastic force on the moving contact 31 is more stable, so that the connection between the moving contact 31 and the static contact 62 is tighter, and of course, the connection position of the driving assembly 8 and the second connecting bridge 4 can be located in the middle of the two elastic members 5, so that the force on the elastic member 5 can be more balanced, and the connection effect of the moving contact 31 and the static contact 62 is further ensured.

[0048] According to a second aspect of the present disclosure, a switching device is provided, comprising: two stationary contact assemblies 6, an arc extinguishing assembly 7, a driving assembly 8 and the above-mentioned moving contact assembly, wherein the stationary contact assembly 6 comprises a stationary terminal 61, a stationary contact 62 and a connecting section 63 for connecting the stationary terminal 61 and the stationary contact 62; the arc extinguishing assembly 7 is arranged on the adjacent side of the two stationary contact assemblies 6 for eliminating the arc; the two stationary contact assemblies 6 are symmetrically arranged with respect to the moving contact assembly so that the two moving contacts 31 on the moving contact assembly can be arranged corresponding to the stationary contacts 62 on the two stationary contact assemblies 6, and the driving assembly 8 is connected to the second connecting bridge 4. When the switch device is connected, the driving component 8 drives the second connecting bridge 4 of the moving contact assembly to move toward the direction close to the static contact 62. After the moving contact 31 is connected to the static contact 62, the current can flow into the moving contact 31 on one side of the first connecting bridge 3 through the static terminal 61, the connecting section 63, and the static contact 62 of one static contact assembly 6 in sequence, and then flow into the moving contact 31 on the other side through the first connecting bridge 3, and then flow out through the static contact 62, the connecting section 63 and the static terminal 61 of another static contact assembly 6 in sequence to achieve current conduction; when the switch device is disconnected, the driving component 8 drives the second connecting bridge 4 of the moving contact assembly to move away from the static contact 62, thereby separating the moving contact 31 and the static contact 62. The arc generated when the two are separated will be guided to the arc extinguishing component 7 by the arc striking structure on the moving contact assembly and the static contact assembly 6, thereby eliminating the arc.

[0049] At the same time, the barrier member 2 on the connecting frame 1 will also prevent the arcs on both sides from meeting each other, thus preventing an explosion.

[0050] It should be noted that the arc striking structure on the moving contact assembly and the stationary contact assembly 6 can be constructed as a sheet-like structure close to the moving contact 31 and the stationary contact 62 and extending toward one side of the arc extinguishing structure.

[0051] In some embodiments of the present disclosure, the driving assembly 8 may include a driving portion 81 and a driving rod 82 connected to the driving portion 81 , the driving portion 81 is configured as a bistable electromagnet, and the driving rod 82 is connected to the second connecting bridge 4 . Specifically, the bistable magnet includes a yoke 83 and two coils 84 arranged in the yoke 83, and a static iron core 85 is arranged in each of the two coils 84. A moving iron core 86 is arranged between the two static iron cores 85. One end of the driving rod 82 is connected to the moving iron core 86, and the other end passes through the driving part 81 and is connected to the second connecting bridge 4. A permanent magnet 87 is also arranged between the two coils 84. When the coils 84 are not energized, the permanent magnet 87 can keep the moving iron core 86 stable, that is, in a static state. When the coils 84 are energized, the moving iron core 86 will start to move. For example, when the switch device is not turned on, the coils 84 are not energized, and the moving iron core 86 will approach the side of the yoke 83 away from the moving contact assembly and remain in a static state under the magnetic force of the permanent magnet 87, so that the moving contact 3 1 and the static contact 62; after the forward current is passed through the coil 84, the magnetic force given to the moving iron core 86 by the coil 84 will be greater than the magnetic force given to the moving iron core 86 by the permanent magnet 87, so that the moving iron core 86 moves toward the side close to the moving contact assembly, and then the driving rod 82 connected thereto pushes the second connecting bridge 4 to move toward the static contact 62, so that the moving contact 31 and the static contact 62 are connected, and the switching device is turned on, and then the coil 84 is de-energized, and the moving iron core 86 will remain stable under the magnetic state of the permanent magnet 87, so that the switching device is continuously turned on; if the switching device needs to be disconnected, a reverse current can be passed through the coil 84, and the present disclosure will not be repeated here. Based on this, the driving assembly 8 of the present disclosure consumes less power, thereby ensuring the economy of the switching device.

[0052] In some embodiments, the switch device may further include a housing 9, the housing 9 includes a cavity 91 capable of accommodating the static contact assembly 6, the arc extinguishing assembly 7, the drive assembly 8, and the moving contact assembly, and an opening 92 that allows the cavity 91 to communicate with the outside of the housing 9, and a blocking member 10 capable of covering at least part of the opening 92 is provided in the cavity 91. When the moving contact 31 and the static contact 62 are separated, an arc is generated, and the arc enters the arc extinguishing assembly 7 under the action of the arc striking structure and is eliminated. In this process, a certain amount of energy is generated when the arc discharges, thereby causing an impact on the inside of the switch device, and the presence of the opening 92 can discharge at least part of the energy from the switch device to reduce the impact of the energy impact on the switch device. The blocking member 10 can reduce the energy to a certain extent, thereby preventing a large amount of energy from passing through the opening 92 to affect components outside the switch device, further improving the safety and reliability of the switch device.

[0053] There may be a plurality of blocking members 10, and the plurality of blocking members 10 are spaced apart in a direction away from the opening 92. The plurality of blocking members 10 can further reduce the impact of energy on the switch device and the outside world.

[0054] In addition, at least one blocking member 10 is provided with a plurality of through holes 1001 opened in a direction away from the opening 92; the through holes 1001 of at least two adjacent blocking members 10 are arranged in a staggered manner, which can ensure the smooth flow of energy and prevent the energy from directly acting on the blocking member 10 and damaging the blocking member 10.

[0055] Of course, two adjacent blocking members 10 may also be arranged alternately according to the size of the internal cavity of the switch device to increase the energy transfer path, thereby reducing the impact of energy on the inside of the switch device or on the outside.

[0056] A third aspect of the present disclosure provides a vehicle, comprising the above-mentioned switch device, and the vehicle has all the beneficial effects of the switch device, which will not be elaborated in the present disclosure.

[0057] In summary, the present disclosure exemplarily illustrates the use process of the moving contact assembly and the switch device.

[0058] When the switch device is turned on, a positive current is passed through the coil 84 of the driving part 81, and the moving iron core 86 pushes the driving rod 82 to move in the direction of the static contact 62 under the action of the magnetic force given by the coil 84, so that the moving contact assembly connected to the driving rod 82 moves in the direction of the static contact 62. In this process, since part of the first connecting bridge 3 and the second connecting bridge 4 are both located in the connecting frame 1, the connecting frame 1 provides a pre-tightening force for the spring between the first connecting bridge 3 and the second connecting bridge 4 to improve the stability of the spring, thereby ensuring that the moving contact 31 and the static contact 62 can be stably connected. Therefore, the movable contact assembly of the present invention can reduce or even avoid the occurrence of poor switch contact; when the movable contact 31 on the first connecting bridge 3 contacts the static contact 62, the driving rod 82 will still push the movable contact assembly to the side close to the static contact 62 under the action of the moving iron core 86. In one embodiment, the first connecting bridge 3 is connected to the connecting frame 1, and the barrier 2 is located in the middle of the connecting frame 1 and abuts against the side of the first connecting bridge 3 close to the barrier 2. That is, in the process of the driving rod 82 continuously pushing the movable contact assembly, the first connecting bridge 3 and the connecting frame 1 will be in a stationary state, and only the second connecting bridge 3 will be in a stationary state. 4 will compress the spring and move to the side close to the static contact 62. Based on this, the compressed spring will give elastic force to the first connecting bridge 3 to ensure that the moving contact 31 and the static contact 62 can be connected more closely. At the same time, the barrier 2 can also block the arc generated when the switch device is disconnected. In another embodiment, the second connecting bridge 4 is connected to the connecting frame 1, and a groove 32 is provided on the side of the connecting frame 1 close to the barrier 2. The barrier 2 is located in the middle of the connecting frame 1 and the two sides of the barrier 2 extend into the groove 32 respectively, so as to abut against the side of the groove 32 close to the moving contact 31 and at least part of the barrier 2 can It can fit with the opposite side walls of the groove 32 in the second direction B, that is, when the driving rod 82 continues to push the moving contact assembly, the second connecting bridge 4 and the connecting frame 1 will continue to move to one side of the static contact 62, and only the first connecting bridge 3 will be in a static state. Based on this, the barrier 2 will move in the groove 32 to ensure that the barrier 2 can still isolate the arc while moving with the connecting frame 1, thereby ensuring the stability and safety of the switching device after being turned on; in addition, the moving contact assembly can form a stable whole after being combined in this way, which is convenient for the subsequent assembly of the switching device.After the driving rod 82 moves to the extreme position, the power supply to the coil 84 can be stopped, and the moving iron core 86 will remain stable under the magnetic force of the permanent magnet 87; when the switch device is disconnected, a reverse current can be passed into the coil 84, so that the moving iron core 86 moves to the side away from the static contact 62 under the magnetic force of the coil 84, thereby separating the moving contact 31 and the static contact 62. The arc generated when the two are separated will be blocked by the barrier 2 and will be transmitted to the arc extinguishing component 7 for elimination under the action of the arc striking structure. In this process, the energy generated by the arc will be blocked by the blocking member 10, thereby reducing the impact of the arc on the switch device and the outside world.

[0059] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0060] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0061] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A moving contact assembly, characterized in that: include: Connecting frame; A first connecting bridge, part of which is located inside the connecting frame and the other part of which is located outside the connecting frame and has two moving contacts; as well as A second connecting bridge, used to be connected to a driving assembly of the switch device, at least a portion of the second connecting bridge is located in the connecting frame and connected to the first connecting bridge through an elastic member; One of the first connecting bridge and the second connecting bridge is connected to the connecting frame, and the other can be pressed against the inner wall of the connecting frame under the elastic force of the elastic member.

2. The moving contact assembly according to claim 1, characterized in that: The connecting frame is provided with a barrier member located between the two moving contacts to block the arc between the two moving contacts.

3. The moving contact assembly according to claim 2, characterized in that: The first connecting bridge is connected to the inner wall of the connecting frame, the moving contact is located on a side of the first connecting bridge close to the barrier, and the side of the second connecting bridge facing away from the barrier is connected to the driving assembly and can be against the inner wall of the connecting frame under the elastic force of the elastic member.

4. The moving contact assembly according to claim 3, characterized in that: At least part of the barrier member abuts against a side of the first connecting bridge close to the barrier member, and a projection of the barrier member in the first direction can cover two opposite side walls of the first connecting bridge in the second direction.

5. The moving contact assembly according to claim 2, characterized in that: The second connecting bridge is connected to the inner wall of the connecting frame and the side of the second connecting bridge facing away from the barrier is connected to the driving assembly. The side of the first connecting bridge close to the barrier has the moving contact and can be against the inner wall of the connecting frame under the elastic force of the elastic member.

6. The moving contact assembly according to claim 5, characterized in that: A groove is provided between the two moving contacts on the first connecting bridge, extending from a side close to the barrier to a side away from the barrier, and both sides of the barrier extend into the groove respectively to abut against a side of the groove close to the moving contact, and at least part of the barrier can fit with the opposite side walls of the groove in the second direction.

7. The moving contact assembly according to claim 1, characterized in that: The second connecting bridge is provided with a first connecting groove for connecting with the driving rod of the driving assembly, and the connecting frame is provided with a second connecting groove corresponding to the first connecting groove.

8. The moving contact assembly according to claim 2, characterized in that: The connecting frame is provided with a connecting structure for connecting the barrier member and a limiting structure for limiting the rotation of the barrier member.

9. The moving contact assembly according to any one of claims 1 to 8, characterized in that: The elastic members are configured with two, and the two elastic members are arranged in one-to-one correspondence with the two moving contacts.

10. A switch device, characterized in that: include: A stationary contact assembly, configured with two, including a stationary terminal, a stationary contact, and a connecting section for connecting the stationary terminal and the stationary contact; An arc extinguishing assembly, arranged at adjacent sides of the two static contact assemblies, for extinguishing the arc; Drive components; as well as, The moving contact assembly described in any one of claims 1 to 9, wherein the two stationary contact assemblies are symmetrically arranged with respect to the moving contact assembly so that the two moving contacts on the moving contact assembly can be arranged correspondingly to the stationary contacts on the two stationary contact assemblies, and the driving assembly is connected to the second connecting bridge.

11. The switch device according to claim 10, characterized in that: The driving assembly includes a driving part and a driving rod connected to the driving part, the driving part is configured as a bistable electromagnet, and the driving rod is connected to the second connecting bridge.

12. The switch device according to claim 10 or 11, characterized in that: The switching device also includes a shell, which includes a cavity capable of accommodating the static contact assembly, the arc extinguishing assembly, the drive assembly and the moving contact assembly, and an opening that connects the cavity with the outside of the shell, and a blocking member capable of covering at least part of the opening is provided in the cavity.

13. The switch device according to claim 12, characterized in that A plurality of blocking members are provided, and the plurality of blocking members are spaced apart in a direction away from the opening.

14. The switch device according to claim 13, characterized in that At least one of the blocking members is provided with a plurality of through holes opened in a direction away from the opening; The through holes of at least two adjacent blocking members are arranged in a staggered manner.

15. A vehicle, characterized in that: A switch device comprising any one of claims 10-14.

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