Relay, control system and vehicle

Abstract

The invention relates to a relay, a control system and a vehicle. The relay comprises a power device, a contact device and a transmission device, the contact device comprises at least one first terminal and at least one second terminal, and the first terminal can move relative to the second terminal; one end of the transmission device is connected to the power device, and the other end is connected to the first terminal; when the power device works, the power device drives the transmission device to move, so that the first terminal and the second terminal are electrically connected or disconnected; when the first terminal is electrically connected with the second terminal, the power device does not work; and the transmission device limits the first terminal, so that the first terminal is electrically connected with the second terminal, and the relay continues to work. The invention aims to solve the technical problem that the relay cannot stably guarantee the contact state in the prior art.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of relays, and in particular to a relay, a control system and a vehicle. BACKGROUND

[0002] With the continuous improvement and perfection of vehicle performance, the application scenarios of relays are also increasing, and the anti-vibration impact and anti-malfunction ability of relays are also higher and higher. In the related technology, the relays used in vehicles are all monostable, in order to meet the anti-vibration impact and anti-malfunction ability, the coil power consumption of the relays must be improved, but because the coil temperature is too high, it is impossible to achieve a large holding force, resulting in that the relay cannot be kept in a stable contact state. SUMMARY

[0003] The present application provides a relay, a control system and a vehicle, and aims to solve the technical problem that the relay cannot stably guarantee the contact state in the related technology.

[0004] In order to achieve the above-mentioned purpose, according to a first aspect of the present application, a relay is provided, comprising:

[0005] a power device;

[0006] a contact device comprising at least one first terminal and at least one second terminal, the first terminal being movable relative to the second terminal; and

[0007] a transmission device, one end of which is connected to the power device, and the other end of which is connected to the first terminal;

[0008] wherein when the power device is working, the power device drives the transmission device to move, so that the first terminal and the second terminal are electrically connected or disconnected;

[0009] When the first terminal and the second terminal are electrically connected, the power device does not work; the transmission device limits the first terminal, so that the first terminal and the second terminal remain electrically connected, so that the relay continues to work.

[0010] In some embodiments, when the power device is working, the contact device has a first state and a second state;

[0011] In the first state, the first terminal and the second terminal are electrically connected;

[0012] In the second state, the first terminal and the second terminal are disconnected.

[0013] In some embodiments, the power device comprises a forward working state and a reverse working state;

[0014] When the contact device switches from the first state to the second state, the power device is in the reverse working state, driving the transmission device to move, so as to drive the first terminal to move away from the second terminal.

[0015] In some embodiments, when the contact device switches from the second state to the first state, the power device is in the forward working state, driving the transmission device to move, so as to drive the first terminal to move close to the second terminal.

[0016] In some embodiments, when the power device is not working, the relay has an on state and an off state;

[0017] In the on state, the transmission device restricts the first terminal, so that the first terminal and the second terminal remain in an electrically connected state;

[0018] In the off state, the transmission device restricts the first terminal, so that the first terminal and the second terminal remain in a disconnected state.

[0019] In some embodiments, when the relay switches from the on state to the off state, the power device is in the reverse working state, the contact device switches from the first state to the second state, the power device is not working, and the first terminal and the second terminal remain in a disconnected state.

[0020] In some embodiments, the transmission device includes a linkage assembly, one end of the linkage assembly is connected with the power device, and the other end of the linkage assembly is connected with the first terminal.

[0021] The power device can drive the linkage assembly to move, so as to drive the first terminal to move relative to the second terminal.

[0022] In some embodiments, the linkage assembly includes a first linkage mechanism and a second linkage mechanism movably connected with each other, the first linkage mechanism is connected with the power device, and the second linkage mechanism is connected with the first terminal.

[0023] In some embodiments, when the relay is in the on state, the first linkage mechanism is fixed to restrict the first terminal, so that the first terminal and the second terminal remain in an electrically connected state.

[0024] In some embodiments, when the contact device switches from the first state to the second state, the first linkage mechanism moves, driving the second linkage mechanism to move, so as to drive the first terminal to move relative to the second terminal.

[0025] In some embodiments, the first linkage mechanism comprises a first link and a second link movably connected, the first link connected to the power device, the second link connected to the second linkage mechanism.

[0026] In some embodiments, the first linkage mechanism further comprises a third link, one end of the third link movably connected to the first link, the other end of the third link movably connected to the power device.

[0027] In some embodiments, when the contact device switches from the first state to the second state, an angle is formed between the third link and the second link so that the second link is driven by the first link.

[0028] In some embodiments, when the relay is in the on state, an axis of the third link coincides with an axis of the second link to stop the second link.

[0029] In some embodiments, when the relay is in the off state, the second linkage mechanism is fixed to restrict the first terminal so that the first terminal and the second terminal remain in the off state.

[0030] In some embodiments, when the contact device switches from the second state to the first state, the second linkage mechanism moves to drive the first linkage mechanism to move the first terminal relative to the second terminal.

[0031] In some embodiments, the second linkage mechanism comprises a fourth link and a fifth link movably connected, the fourth link connected to the power device, the fifth link connected to the first linkage mechanism.

[0032] In some embodiments, the second linkage mechanism further comprises a sixth link, one end of the sixth link movably connected to the fourth link, the other end of the sixth link connected to the first terminal.

[0033] In some embodiments, when the contact device switches from the second state to the first state, an angle is formed between the sixth link and the fifth link so that the fifth link is driven by the fourth link.

[0034] In some embodiments, when the relay is in the off state, an axis of the sixth link coincides with an axis of the fifth link to stop the fifth link.

[0035] In some embodiments, the transmission device further comprises a transmission member, one end of the transmission member connected to the power device, the other end of the transmission member connected to the first linkage mechanism and the second linkage mechanism.

[0036] In some embodiments, the first linkage mechanism comprises a first rod, one end of the first rod being connected to the transmission member; and / or,

[0037] The second linkage mechanism comprises a fourth rod, one end of the fourth rod being connected to the transmission member.

[0038] In some embodiments, the transmission device further comprises a linkage rod, the linkage rod being movably connected to the first linkage mechanism and the second linkage mechanism, so that the first linkage mechanism and the second linkage mechanism are linked.

[0039] In some embodiments, the transmission device further comprises a positioning member, the positioning member being provided on the power device, and the linkage rod being movably connected to the positioning member.

[0040] In some embodiments, a limiting hole extending in a first direction is formed on the positioning member, and a part of the linkage rod is arranged in the limiting hole and is movable along the first direction;

[0041] Wherein, the first direction intersects with the extension direction of the axis of the linkage rod.

[0042] In some embodiments, the power device comprises a driving assembly and a driven assembly, the driving assembly being connected to the power device, the driven assembly being connected to the transmission device, the driving assembly driving the driven assembly to move, so as to drive the transmission device to move.

[0043] In some embodiments, the driving assembly comprises a coil assembly, and the driven assembly comprises a magnetic coupling assembly, the coil assembly being electrified to generate a magnetic field, so as to drive the magnetic coupling assembly to move, drive the transmission device to move, and drive the first terminal to move relative to the second terminal.

[0044] In some embodiments, the magnetic coupling assembly comprises a magnetic member;

[0045] When the coil assembly is electrified with a forward voltage, the power device is in the forward working state, and the first terminal moves towards the second terminal;

[0046] When the coil assembly is electrified with a reverse voltage, the power device is in the reverse working state, and the first terminal moves away from the second terminal.

[0047] In some embodiments, the magnetic coupling assembly comprises a magnetic member;

[0048] The coil assembly comprises a first coil and a second coil, the first terminal moves towards the second terminal when the first coil is electrified, and the first terminal moves away from the second terminal when the second coil is electrified.

[0049] In some embodiments, the transmission device further comprises a transmission member connected to the magnetic coupling assembly and the transmission device.

[0050] In some embodiments, the first terminal comprises:

[0051] a contact portion arranged opposite to the second terminal; and

[0052] a movable portion connected to the contact portion at one end and connected to the transmission device at the other end, the movable portion driving the contact portion to move.

[0053] In some embodiments, the contact device further comprises an elastic member abutting between the contact portion and the movable portion.

[0054] When the transmission device is not working, the elastic restoring force of the elastic member and the force of the transmission device work together to fix the first terminal and the second terminal relative to each other.

[0055] According to a second aspect of the present application, a control system is provided, comprising the above-mentioned relay.

[0056] According to a third aspect of the present application, a vehicle is further provided, comprising the above-mentioned relay or the above-mentioned control system.

[0057] Advantages:

[0058] In the technical solution of the present application, the relay has simple structure and high safety, and the self-locking function is realized through the transmission device, which overcomes the problem of locking failure caused by electrical faults in the related art. The self-locking function is realized through pure mechanical connection, which is safer. Specifically, when the power device is working, the power device drives the transmission device to move, so that the first terminal and the second terminal are electrically connected or disconnected. When the power device is not working, the transmission device limits the first terminal, so that the first terminal and the second terminal remain electrically connected, so that the relay continues to work. Due to the limiting action of the transmission device, the first terminal and the second terminal can also remain electrically connected when the power device is not working. When the relay has an electrical fault or other problems, the first terminal and the second terminal will not be disconnected, which improves the safety of the relay. At the same time, when the first terminal and the second terminal remain electrically connected, the transmission device is limited, so the power device does not need to work all the time, which also reduces energy consumption.

[0059] Other features and advantages of the present application will be described in detail in the following specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0060] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0061] In order to more completely understand the present application and its beneficial effects, the following will be described in conjunction with the drawings, wherein the same reference numerals in the following description represent the same parts.

[0062] Figure 1 is a structural schematic diagram of some embodiments of the relay provided by the present application;

[0063] Figure 2 is Figure 1 an exploded schematic diagram of the relay in FIG.

[0064] Figure 3 is Figure 1 another perspective exploded schematic diagram of the relay in FIG.

[0065] Figure 4 is Figure 1 a structural schematic diagram of the driving device and the transmission device in cooperation in FIG.

[0066] Figure 5 is Figure 4 a structural schematic diagram of the first connecting rod mechanism, the second connecting rod mechanism and the driving device in cooperation in FIG.

[0067] Figure 6 is an exploded schematic diagram of the driving device and the transmission device in FIG.

[0068] Figure 7 is Figure 1 a schematic diagram of the relay opening state in FIG.

[0069] Figure 8 is Figure 1 a schematic diagram of the relay closing state in FIG.

[0070] Figure 9 is Figure 1 a structural schematic diagram of the contact assembly and the transmission device in cooperation in FIG.

[0071] Figure 10 is Figure 1 a structural schematic diagram of the box in FIG.

[0072] Figure 11 is Figure 1 a structural schematic diagram of the first terminal in FIG.

[0073] Figure 12is a structural schematic view of some embodiments of the vehicle provided in the present application.

[0074] Legend:

[0075] 1000, vehicle, 200, control system; 100, relay; 10, power device; 11, coil assembly; 12, magnetic coupling assembly; 20, contact device; 21, first terminal; 211, contact part; 212, movable part; 213, elastic piece; 214, fixed part; 215, wire harness; 22, second terminal; 30, transmission device; 3, link assembly; 31, first link mechanism; 311, first rod; 312, second rod; 313, third rod; 32, second link mechanism; 321, fourth rod; 322, fifth rod; 323, sixth rod; 33, linkage rod; 34, positioning piece; 341, limiting hole; 35, transmission piece; 40, base; 41, bushing; 42, buckle; 50, upper cover; 51, clamping hole. DETAILED DESCRIPTION

[0076] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person skilled in the art without creative labor are within the protection scope of the present application.

[0077] In the related art, the relay used in the vehicle is monostable. In order to meet the anti-vibration impact and anti-malfunction ability, the coil power consumption of the relay must be improved. However, because the coil temperature is too high, the relay cannot be kept in a stable contact state, and the holding force cannot be improved.

[0078] In view of this, the present application provides a relay 100, Figures 1 to 11 is a structural schematic view of some embodiments of the relay 100 provided in the present application. The relay 100 will be described in detail below in combination with the main drawings.

[0079] Please refer to Figure 1 , Figure 2 and Figure 3The application provides a relay 100, which comprises a power device 10, a contact device 20 and a transmission device 30; the contact device 20 comprises at least one first terminal 21 and at least one second terminal 22, the first terminal 21 can move relative to the second terminal 22; one end of the transmission device 30 is connected to the power device 10, and the other end is connected to the first terminal 21; wherein when the power device 10 works, the power device 10 drives the transmission device 30 to move, so that the first terminal 21 and the second terminal 22 are electrically connected or disconnected; when the first terminal 21 is electrically connected with the second terminal 22, the power device 10 does not work, and the transmission device 30 limits the first terminal 21, so that the first terminal 21 and the second terminal 22 remain electrically connected, thereby making the relay 100 continue to work.

[0080] In the technical scheme of the application, the relay 100 has simple structure and high safety, realizes the self-locking function through the transmission device 30, overcomes the problem of locking failure caused by electrical faults in the related art, realizes the self-locking function through pure mechanical connection, and is safer; specifically, when the power device 10 works, the power device 10 drives the transmission device 30 to move, so that the first terminal 21 and the second terminal 22 are electrically connected or disconnected; when the power device 10 does not work, the transmission device 30 limits the first terminal 21, so that the first terminal 21 and the second terminal 22 remain electrically connected, so that the relay 100 continues to work; due to the limiting action of the transmission device 30, the first terminal 21 and the second terminal 22 can also remain electrically connected when the power device 10 does not work, and the first terminal 21 and the second terminal 22 will not be disconnected when the relay 100 has an electrical fault or other problems, thereby improving the safety of the relay 100; and when the first terminal 21 and the second terminal 22 remain electrically connected, the power device 10 does not need to work all the time, and the energy consumption can be reduced.

[0081] Please continue to refer to Figure 1 、 Figure 2 and Figure 3 When the power device 10 works, the contact device 20 has a first state and a second state; when the contact device 20 is in the first state, the first terminal 21 and the second terminal 22 are electrically connected; specifically, the power device 10 drives the transmission device 30 to move, the transmission device 30 drives the first terminal 21 to move towards the second terminal 22, until the first terminal 21 and the second terminal 22 contact, at this time, the first terminal 21 and the second terminal 22 are electrically connected. When the contact device 20 is in the second state, the power device 10 drives the transmission device 30 to move, the transmission device 30 drives the first terminal 21 to move away from the second terminal 22, until the first terminal 21 and the second terminal 22 are separated, at this time, the first terminal 21 and the second terminal 22 are disconnected.

[0082] In the embodiment, the power device 10 is used as a power source to adjust the movement of the first terminal 21, but not to maintain the state of the first terminal 21 and the second terminal 22, and the first terminal 21 and the second terminal 22 are maintained in the electrically connected state or the separated state by the transmission device 30.

[0083] In some embodiments, when the contact device 20 is in the first state, the first terminal 21 and the second terminal 22 are in the electrically connected state (the first terminal 21 and the second terminal 22 are in contact); when the contact device 20 is in the second state, the first terminal 21 and the second terminal 22 are maintained in the electrically disconnected state (i.e., the first terminal 21 and the second terminal 22 are separated).

[0084] In some embodiments, when the contact device 20 switches from the first state to the second state (i.e., the first terminal 21 and the second terminal 22 switch from the contact state to the separated state), the power device 10 is in the reverse working state, the power device 10 drives the transmission device 30 to move reversely, the transmission device 30 is connected with the first terminal 21, and the transmission device 30 drives the first terminal 21 to move away from the second terminal 22.

[0085] In some embodiments, when the contact device 20 switches from the second state to the first state (i.e., the first terminal 21 and the second terminal 22 switch from the separated state to the contact state), the power device 10 is in the forward working state, the power device 10 drives the transmission device 30 to move forwardly, the transmission device 30 is connected with the first terminal 21, and the transmission device 30 drives the first terminal 21 to move towards the second terminal 22.

[0086] Please refer to Figure 1 , Figure 2 and Figure 3 , the relay 100 has the open state and the closed state when the power device 10 is not working; it should be noted that when the contact device 20 is in the first state or the second state, the power device 10 stops working, and the contact device 20 is maintained in the first state or the second state by the limiting action of the transmission device 30, so that the state of the contact device 20 does not change even if the power device 10 does not work.

[0087] When the relay 100 is in the on state, the first terminal 21 and the second terminal 22 need to be kept in the electrically connected state, so that the relay 100 can work normally, and when the power device 10 does not work, the first terminal 21 and the second terminal 22 also need to be kept in the electrically connected state, at this time, the transmission device 30 limits the first terminal 21 to avoid the first terminal 21 from rebounding (an elastic element 213 is arranged between the first terminal 21 and the second terminal 22), so that the first terminal 21 and the second terminal 22 are kept in the electrically connected state; the first terminal 21 is limited by the transmission device 30 to avoid rebounding, and the self-locking of the first terminal 21 and the second terminal 22 is realized by a pure mechanical structure, so that the safety is higher.

[0088] Further, when the relay 100 is in the off state, the first terminal 21 and the second terminal 22 need to be separated, so that the entire relay 100 is in the off state, at this time, the power device 10 also does not work, but the first terminal 21 and the second terminal 22 need to be kept in the separated state, the transmission device 30 limits the first terminal 21, so that the first terminal 21 and the second terminal 22 are kept in the off state.

[0089] In some embodiments, the relay 100 can work or stop working at any time. When the relay 100 stops working, the relay 100 needs to switch from the on state to the off state, when the relay 100 is in the on state, the power device 10 is in the non-working state, at this time, the power device 10 needs to work reversely first, the power device 10 drives the transmission device 30 to move reversely, the transmission device 30 drives the contact device 20 to move reversely, the contact device 20 switches from the first state to the second state, at this time, the first terminal 21 and the second terminal 22 are separated, when the first terminal 21 and the second terminal 22 are separated completely, the power device 10 stops working, the transmission device 30 limits the movement of the first terminal 21, so that the first terminal 21 and the second terminal 22 are kept in the off state. When the relay 100 needs to work, the relay 100 needs to switch from the off state to the on state, when the relay 100 is in the off state, the power device 10 is in the non-working state, at this time, the power device 10 needs to work forwardly first, the power device 10 drives the transmission device 30 to move forwardly, the transmission device 30 drives the contact device 20 to move forwardly, the contact device 20 switches from the second state to the first state, at this time, the first terminal 21 and the second terminal 22 are electrically connected, when the first terminal 21 and the second terminal 22 are electrically connected completely, the power device 10 stops working, the transmission device 30 limits the movement of the first terminal 21, so that the first terminal 21 and the second terminal 22 are kept in the electrically connected state.

[0090] It should be noted that, in the above embodiments, the reverse and forward directions represent different directions of movement of the power device 10. For example, when the power device 10 is an electric motor, the reverse direction can refer to the clockwise rotation of the electric motor, and the forward direction can refer to the counterclockwise rotation of the electric motor.

[0091] It should be noted that, between the first terminal 21 and the second terminal 22, there is often an elastic member 213. In the related art, when the power device 10 stops working, the elastic member 213 will rebound, and the first terminal 21 and the second terminal 22 will be separated under the elastic force of the elastic member 213. However, in the present application, when the power device 10 stops working, the transmission device 30 can offset the rebounding force of the elastic member 213, so that the first terminal 21 and the second terminal 22 remain in an electrically connected state or a separated state.

[0092] The specific type of the transmission device 30 is not limited, as long as it can achieve transmission. For example, in some embodiments, the transmission device 30 includes a linkage assembly 3. In other embodiments, the transmission device 30 includes a gear assembly.

[0093] Please refer to Figure 4 , Figure 5 and Figure 6 In the present embodiment, the transmission device 30 includes a linkage assembly 3, one end of the linkage assembly 3 is connected with the power device 10, and the other end of the linkage assembly 3 is connected with the first terminal 21. When the power device 10 is working, the power device 10 drives the linkage assembly 3 to move, the linkage assembly 3 is connected with the first terminal 21, the linkage assembly 3 drives the first terminal 21 to move, so that the first terminal 21 moves relative to the second terminal 22.

[0094] Please continue to refer to Figure 5 and Figure 6 The linkage assembly 3 includes a first linkage mechanism 31 and a second linkage mechanism 32 connected movably, the first linkage mechanism 31 is connected with the power device 10, and the second linkage mechanism 32 is connected with the first terminal 21. Specifically, when the power device 10 is working, the power device 10 drives the first linkage mechanism 31 to move, the first linkage mechanism 31 drives the second linkage mechanism 32 to move, the second linkage mechanism 32 is connected with the first terminal 21, and the second linkage mechanism 32 drives the first terminal 21 to move, so that the first terminal 21 moves relative to the second terminal 22.

[0095] Please refer to Figure 7 and Figure 8In some embodiments, when the relay 100 is in the on state, the contact assembly is in the first state, the power device 10 drives the first linkage 31 to move, the first linkage 31 drives the second linkage 32 to move, the second linkage 32 drives the first terminal 21 to move towards the second terminal 22, until the first terminal 21 and the second terminal 22 are in contact, at this time the relay 100 is in the on state, the power device 10 stops working, the first linkage 31 moves to the limit position due to its structural characteristics, the first linkage 31 is fixed and cannot continue to move, the second linkage 32 also stops moving, thereby limiting the first terminal 21, so that the first terminal 21 and the second terminal 22 remain in the electrically connected state.

[0096] Please refer to Figure 7 and Figure 8 In some embodiments, when the relay 100 is in the off state, the contact assembly is in the second state, the power device 10 drives the second linkage 32 to move, the second linkage 32 drives the first linkage 31 to move, and at the same time, the second linkage 32 also drives the first terminal 21 to move away from the second terminal 22, until the first terminal 21 and the second terminal 22 are separated, at this time the relay 100 is in the off state, the power device 10 stops working, the second linkage 32 moves to the limit position due to its structural characteristics, the second linkage 32 is fixed, thereby limiting the first terminal 21, so that the first terminal 21 and the second terminal 22 remain in the off state.

[0097] Please continue to refer to Figure 7 and Figure 8 When the relay 100 is switched from the on state to the off state, the contact device 20 is switched from the first state to the second state, the power device 10 starts to work in reverse, the power device 10 drives the second linkage 32 to move, the second linkage 32 drives the first linkage 31 to move, the first linkage 31 is released from the limit position, and the second linkage 32 also drives the first terminal 21 to move relative to the second terminal 22, so that the first terminal 21 and the second terminal 22 are separated, after the first terminal 21 and the second terminal 22 are separated, the second linkage 32 moves to the limit position, the power device 10 stops working, the second linkage 32 is fixed and cannot move, thereby keeping the first terminal 21 and the second terminal 22 in the separated state.

[0098] Please continue to refer to Figure 7 and Figure 8When the contact device 20 switches from the second state to the first state, the power device 10 is in the forward working state, the power device 10 drives the first link mechanism 31 to move, the first link mechanism 31 drives the second link mechanism 32 to move, the second link mechanism 32 disengages from the extreme position, and the movement of the second link mechanism 32 drives the first terminal 21 to move relative to the second terminal 22, and the first terminal 21 moves toward the second terminal 22 until the first terminal 21 contacts the second terminal 22. At this time, the first link mechanism 31 moves to the extreme position.

[0099] Please continue reading Figure 7 and Figure 8 The first linkage mechanism 31 includes a first rod 311 and a second rod 312 that are movably connected. The first rod 311 is connected to the power device 10, and the second rod 312 is connected to the second linkage mechanism 32. During the transmission process, the power device 10 drives the first rod 311 to move, the first rod 311 drives the second rod 312 to move, the second rod 312 drives the second linkage mechanism 32 to move, and the second linkage drives the first terminal 21 to move.

[0100] Furthermore, the first end of the first rod 311 is connected to the power device 10, the second end of the first rod 311 is connected to the first end of the second rod 312, and the second end of the second rod 312 is connected to the second connecting rod mechanism 32. That is, the second end of the first rod 311 is connected to the first end of the second rod 312. The connection method of the first rod 311 and the second rod 312 is not limited and can be selected according to actual circumstances. In some embodiments, the second end of the first rod 311 is formed with a first hole, and the first end of the second rod 312 is formed with a second hole, the first hole and the second hole corresponding to each other, and a pin passes through the first hole and the second hole to connect the first rod 311 and the second rod 312 together.

[0101] In some embodiments, the first linkage mechanism 31 further includes a third rod 313, a first end of the third rod 313 movably connected to the second end of the first rod 311 and the first end of the second rod 312, and a second end of the third rod 313 movably connected to the power device 10. When the first terminal 21 and the second terminal 22 are electrically connected, the third rod 313 can abut against the second rod 312, restricting the movement of the second rod 312, thereby fixing the first linkage mechanism 31 and restricting the movement of the first terminal 21.

[0102] Specifically, a third hole is formed at the first end of the third rod 313, and the third hole corresponds to the first hole and the second hole. The pin passes through the first hole, the second hole and the third hole in sequence to movably connect the first rod 311, the second rod 312 and the third rod 313 together.

[0103] In some embodiments, when the contact device 20 is switched from the first state to the second state, the third rod 313 forms an angle with the second rod 312, so that the second rod 312 is driven by the first rod 311. Specifically, when the third rod 313 forms an angle with the second rod 312, the third rod 313 and the second rod 312 can move relatively, so that the second rod 312 can drive the second linkage mechanism 32 to move, thereby driving the first terminal 21 to move relative to the second terminal 22.

[0104] In some embodiments, when the relay 100 is in the on state, the axis of the third rod 313 coincides with the axis of the second rod 312 to stop the second rod 312. Specifically, when the axis of the third rod 313 coincides with the axis of the second rod 312, the third rod 313 and the second rod 312 are on the same straight line, the third rod 313 abuts the first end of the second rod 312, so that the second rod 312 cannot continue to move, the second rod 312 cannot drive the second transmission mechanism to move, so that the first terminal 21 cannot move relative to the second terminal 22, i.e. the first terminal 21 is relatively fixed with the second terminal 22.

[0105] Please continue to refer to Figure 7 and Figure 8 , the second linkage mechanism 32 includes a fourth rod 321 and a fifth rod 322 connected movably, the fourth rod 321 is connected to the power device 10, and the fifth rod 322 is connected to the first linkage mechanism 31. In the transmission process, the second rod 312 drives the fourth rod 321 to move, and the fourth rod 321 drives the fifth rod 322 to move.

[0106] Further, the first end of the fourth rod 321 is connected to the power device 10, the second end of the fourth rod 321 is connected to the first end of the fifth rod 322, and the second end of the fifth rod 322 is connected to the first linkage mechanism 31, i.e. the second end of the fourth rod 321 and the first end of the fifth rod 322 are connected, and the connection mode of the fourth rod 321 and the fifth rod 322 is not limited, which can be selected according to actual conditions. In some embodiments, the second end of the fourth rod 321 forms a fourth hole, the first end of the fifth rod 322 forms a fifth hole, the fourth hole and the fifth hole correspond, and a pin shaft passes through the fourth hole and the fifth hole to connect the fourth rod 321 and the fifth rod 322 together.

[0107] In some embodiments, the second linkage mechanism 32 further includes a sixth rod 323, the first end of the sixth rod 323 is movably connected to the second end of the fourth rod 321 and the first end of the fifth rod 322, and the second end of the sixth rod 323 is connected to the first terminal 21. When the power device 10 is not working, the sixth rod 323 abuts against the fourth rod 321 to limit the fifth rod 322 from continuing to move, so that the second linkage mechanism 32 is fixed, thereby limiting the first terminal 21 from moving.

[0108] Specifically, the first end of the sixth rod 323 is formed with a sixth hole corresponding to the fourth hole, the fifth hole, and the pin shaft sequentially passes through the fourth hole, the fifth hole and the sixth hole to movably connect the fourth rod 321, the fifth rod 322 and the sixth rod 323 together.

[0109] In some embodiments, when the contact device 20 is switched from the second state to the first state, an angle is formed between the sixth rod 323 and the fifth rod 322, so that the fifth rod 322 is driven by the fourth rod 321. Specifically, when the angle is formed between the sixth rod 323 and the fifth rod 322, the sixth rod 323 and the fifth rod 322 can move relatively, so that the sixth rod 323 can drive the first terminal 21 to move.

[0110] In some embodiments, when the relay 100 is in the off state, the axis of the sixth rod 323 coincides with the axis of the fifth rod 322 to stop the fifth rod 322. Specifically, when the axis of the sixth rod 323 coincides with the axis of the fifth rod 322, the sixth rod 323 and the fifth rod 322 are located on the same straight line, the sixth rod 323 abuts against the first end of the fifth rod 322, so that the sixth rod 323 cannot continue to move, the sixth rod 323 cannot drive the first terminal 21 to move, and the first terminal 21 cannot move relative to the second terminal 22, i.e., the first terminal 21 is relatively fixed with the second terminal 22.

[0111] The working process of the relay 100 provided in the present application from the off state to the on state is as follows:

[0112] Please refer to Figure 9 , the power device 10 is in the forward working state, the power device 10 drives the first rod 311 to move, the first rod 311 drives the second rod 312 and the third rod 313 to move, the second rod 312 drives the fifth rod 322 to move, the fifth rod 322 drives the sixth rod 323 and the fourth rod 321 to move, the sixth rod 323 drives the first terminal 21 to move in the direction of approaching the second terminal 22, until the first terminal 21 contacts the second terminal 22, at this time, the first terminal 21 and the second terminal 22 are electrically connected, the third rod 313 abuts against the second rod 312, the second rod 312 and the third rod 313 are locked, the second rod 312 cannot continue to move, the fourth rod 321, the fifth rod 322 and the sixth rod 323 stop moving, the power device 10 does not work, and the first terminal 21 and the second terminal 22 remain in the electrically connected state.

[0113] The working process of the relay 100 provided in the present application from the on state to the off state is as follows:

[0114] Please refer to Figure 9When the power device 10 is in the reverse working state, the first terminal 21 and the second terminal 22 remain in the electrically connected state, the power device 10 drives the fourth rod 321 to move, the fourth rod 321 drives the sixth rod 323 and the fifth rod 322 to move, the fifth rod 322 drives the second rod 312 to move reversely, the second rod 312 is unlocked from the third rod 313, the sixth rod 323 drives the first terminal 21 to move away from the second terminal 22, the first terminal 21 and the second terminal 22 are separated, until the fifth rod 322 abuts against the sixth rod 323, the fifth rod 322 and the sixth rod 323 are locked, the sixth rod 323 cannot continue to move, the power device 10 stops working, and the first terminal 21 and the second terminal 22 remain in the separated state.

[0115] Please refer to Figure 5 and Figure 6 In some embodiments, the transmission device 30 further comprises a transmission member 35, one end of the transmission member 35 is connected to the power device 10, and the other end of the transmission member 35 is connected to the first linkage mechanism 31 and the second linkage mechanism 32. Specifically, the first transmission mechanism and the second transmission mechanism can be connected to the same power device 10 through the transmission member 35, and the locking and unlocking of the first linkage mechanism 31 and the second linkage mechanism 32 can be realized through the forward working state and the reverse working state of the power device 10, so as to realize the electrically connected state or the separated state of the first terminal 21 and the second terminal 22, and the structure is simpler and the transmission process is simpler.

[0116] In this embodiment, the first end of the first rod 311 is connected to the transmission member 35, and the first end of the fourth rod 321 is also connected to the transmission member 35.

[0117] Please refer to Figure 5 and Figure 6 In some embodiments, the transmission device 30 further comprises a linkage rod 33, the linkage rod 33 movably connects the first linkage mechanism 31 and the second linkage mechanism 32, so that the first linkage mechanism 31 and the second linkage mechanism 32 are linked. Specifically, the second end of the second rod 312 is formed with a second hole, the second end of the fifth rod 322 is formed with a fifth hole, and the linkage rod 33 passes through the second hole and the fifth hole to link the second rod 312 and the fifth rod 322.

[0118] Please refer to Figure 6 The transmission device 30 further comprises a positioning member 34, the positioning member 34 is arranged on the power device 10, and the positioning member 34 is used for positioning the linkage rod 33. Specifically, the positioning member 34 is arranged on both sides of the power device 10, and an installation space is formed between the two positioning members 34, and the transmission device 30 is arranged in the installation space. In this way, the space can be saved, and the space utilization rate is improved. Specifically, in order to ensure the smooth movement of the transmission device 30, the linkage rod 33 is movably connected to the positioning member 34.

[0119] Further, in some embodiments, the positioning member 34 is formed with a limiting hole 341 extending along a first direction, and a portion of the linkage rod 33 is arranged in the limiting hole 341 and is movable along the first direction; wherein the first direction intersects with the extending direction of the axis of the linkage rod 33. Specifically, during the movement of the first linkage mechanism 31 and the second linkage mechanism 32, the linkage rod 33 moves along the first direction in the limiting hole 341, so that the transmission is prevented from being stuck.

[0120] In some embodiments, please continue to refer to Figure 6 , the power device 10 comprises a driving assembly and a driven assembly, the driven assembly is connected with the transmission device 30, and the driving assembly drives the driven assembly to move to drive the transmission device 30 to move. Specifically, when the power device 10 works, the driving assembly drives the driven assembly to move, the driven assembly drives the transmission device 30 to move, and the transmission device 30 drives the first terminal 21 to move.

[0121] It should be noted that the specific types of the driving assembly and the driven assembly are not limited, and can be selected according to actual conditions.

[0122] In some embodiments, the driving assembly comprises the coil assembly 11, and the driven assembly comprises a magnetic coupling assembly, the coil assembly 11 generates a magnetic field when energized to drive the magnetic coupling assembly to move, drive the transmission device 30 to move, and drive the first terminal 21 to move relative to the second terminal 22. Specifically, when the coil assembly 11 is connected with a positive current, the magnetic field generated by the coil assembly 11 is the same as the magnetic field of the magnetic coupling assembly, and due to the principle of same nature repelling each other, the magnetic coupling assembly moves away from the coil assembly 11, so that the magnetic coupling assembly drives the transmission device 30 to move, and the transmission device 30 drives the first terminal 21 to move towards the second terminal 22. When the coil assembly 11 is connected with a negative current, the magnetic field generated by the coil assembly 11 is opposite to the magnetic field of the magnetic coupling assembly, and due to the principle of different nature attracting each other, the magnetic coupling assembly moves towards the coil assembly 11, so that the magnetic coupling assembly drives the transmission device 30 to move, and the transmission device 30 drives the first terminal 21 to move away from the second terminal 22.

[0123] In some other embodiments, the magnetic coupling assembly comprises a magnetic piece, which comprises a magnet (the magnet itself has magnetism); when the coil assembly 11 is connected to a forward voltage, the magnetic field generated by the coil assembly 11 is the same as that of the magnet, and due to the principle of same polarity repelling each other, the magnet moves away from the coil assembly 11, thereby driving the transmission device 30 to move, and the transmission device 30 drives the first terminal 21 to move towards the second terminal 22. When the coil assembly 11 is connected to a reverse voltage, the magnetic field generated by the coil assembly 11 is opposite to that of the magnet, and due to the principle of different polarity attracting each other, the magnet moves towards the coil assembly 11, thereby driving the transmission device 30 to move, and the transmission device 30 drives the first terminal 21 to move away from the second terminal 22.

[0124] In some other embodiments, the magnetic coupling assembly comprises a magnetic conductor (for example, an armature, which itself does not have magnetism and can be affected by the coil); specifically, the coil assembly 11 comprises a first coil and a second coil; when the first coil is powered, the first coil generates a magnetic field, affecting the magnetic conductor, so that the magnetic conductor moves towards the first coil, the magnetic conductor drives the transmission device 30 to move, the transmission device 30 drives the first terminal 21 to move, and the first terminal 21 moves towards the second terminal 22. When the second coil is powered, the second coil generates a magnetic field, affecting the magnetic conductor, so that the magnetic conductor moves towards the second coil, the magnetic conductor drives the transmission device 30 to move, the transmission device 30 drives the first terminal 21 to move, and the first terminal 21 moves away from the second terminal 22.

[0125] Further, in some embodiments, the transmission member 35 is connected to the magnetic coupling assembly 12, the coil assembly 11 drives the magnetic coupling assembly to move, the magnetic coupling assembly drives the transmission member 35 to move, and the transmission member 35 drives the first linkage mechanism 31 and the second linkage mechanism 32 to move, thereby driving the first terminal 21 to move relative to the second terminal 22.

[0126] Please refer to Figure 10 , the relay 100 further comprises a box body, which comprises a base 40 and an upper cover 50, the base 40 is formed with a buckle 42, and the upper cover 50 is formed with a clamping hole 51, which cooperates with the buckle 42 to fix the base 40 and the upper cover 50 to each other. The power device 10, the contact assembly, and the transmission device 30 are integrated in the base 40.

[0127] Please refer to Figure 2 , Figure 3 and Figure 10 , the base 40 is formed with round holes, and the bushings 41 are arranged in the corresponding round holes.

[0128] In this embodiment, please refer to Figure 2 and Figure 3The first terminal 21 and the second terminal 22 are respectively provided with two, two first terminals 21 are respectively provided with two sides of the transmission device 30, two second terminals 22 are respectively provided with two sides of the transmission device 30, and the two first terminals 21 are simultaneously connected with the transmission device 30 to be driven by the transmission device 30 to simultaneously move.

[0129] Please refer to Figure 11 The first terminal 21 includes a contact portion 211 and a movable portion 212; the contact portion 211 is arranged opposite to the second terminal 22; one end of the movable portion 212 is connected with the contact portion 211, and the other end of the movable portion 212 is connected with the transmission device 30, and the movable portion 212 drives the contact portion 211 to move. The first terminal 21 further includes a fixed portion 214 arranged in the box, and the contact portion 211 is connected with the fixed portion 214 through a wire harness 215; specifically, the movable portion 212 is driven to move, the movable portion 212 drives the contact portion 211 to move, so that the contact portion 211 contacts or separates from the second terminal 22.

[0130] Further, in some embodiments, please continue to refer to Figure 11 The contact device 20 further includes an elastic member 213 abutting between the contact portion 211 and the movable portion 212; when the transmission device 30 does not work, the elastic restoring force of the elastic member 213 and the force of the transmission device 30 jointly act to relatively fix the first terminal 21 and the second terminal 22.

[0131] According to a second aspect of the present application, a control system 200 is provided, which includes the above-mentioned relay 100. The control system 200 has all the beneficial effects of the above-mentioned relay 100, which will not be repeated here.

[0132] According to a third aspect of the present application, a vehicle 1000 is provided, please refer to Figure 12 The vehicle 1000 includes the above-mentioned control system 200, and the vehicle 1000 has all the beneficial effects of the above-mentioned control system 200, which will not be repeated here.

[0133] The vehicle 1000 can be a fuel automobile, a plug-in hybrid electric vehicle or a new energy vehicle, etc., which will not be specifically limited herein.

[0134] In the description of the present application, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0135] In the above embodiments, the description of each embodiment has its own focus, and the parts not described in detail in a certain embodiment can be referred to the relevant description of other embodiments.

[0136] The embodiments, implementation manners and related technical features of the present application can be combined or replaced with each other without conflict.

[0137] The above are only the preferred embodiments of the present application, and do not limit the present application in any form. Any simple modification, equivalent change and modification made to the above embodiments without departing from the technical solution content of the present application and in accordance with the technical essence of the present application still belongs to the scope of the technical solution of the present application.

Claims

1. A relay, characterized in that: include: Power plant; A contact device comprising at least one first terminal and at least one second terminal, wherein the first terminal is movable relative to the second terminal; as well as, a transmission device, one end of which is connected to the power device and the other end of which is connected to the first terminal; Wherein, when the power device is working, the power device drives the transmission device to move so that the first terminal and the second terminal are electrically connected or disconnected; When the first terminal is electrically connected to the second terminal, the power device does not work; the transmission device restricts the first terminal so that the first terminal and the second terminal remain electrically connected, thereby allowing the relay to continue working.

2. The relay according to claim 1, wherein: When the power device is working, the contact device has a first state and a second state; In the first state, the first terminal and the second terminal are electrically connected; In the second state, the first terminal and the second terminal are electrically disconnected.

3. The relay according to claim 2, characterized in that The power device includes a forward working state and a reverse working state; When the contact device switches from the first state to the second state, the power device is in the reverse working state, driving the transmission device to move, thereby driving the first terminal to move in a direction away from the second terminal.

4. The relay according to claim 3, characterized in that When the contact device switches from the second state to the first state, the power device is in the forward working state, driving the transmission device to move, thereby driving the first terminal to move in a direction close to the second terminal.

5. The relay according to claim 4, characterized in that When the power device is not working, the relay has an open state and an open state; In the open state, the transmission device restricts the first terminal so that the first terminal and the second terminal maintain an electrically connected state; In the disconnected state, the actuator restricts the first terminal so that the first terminal and the second terminal remain in a disconnected state.

6. The relay according to claim 5, characterized in that When the relay switches from the on state to the off state, the power device is in the reverse working state, the contact device switches from the first state to the second state, the power device does not work, and the first terminal and the second terminal remain in the off state.

7. The relay according to claim 6, characterized in that The transmission device includes a connecting rod assembly, one end of the connecting rod assembly is connected to the power device, and the other end of the connecting rod assembly is connected to the first terminal; The power device is capable of driving the connecting rod assembly to move, thereby driving the first terminal to move relative to the second terminal.

8. The relay according to claim 7, characterized in that The connecting rod assembly includes a first connecting rod mechanism and a second connecting rod mechanism that are movably connected. The first connecting rod mechanism is connected to the power device, and the second connecting rod mechanism is connected to the first terminal.

9. The relay according to claim 8, characterized in that When the relay is in the on state, the first link mechanism is fixed to restrict the first terminal so that the first terminal and the second terminal maintain an electrically connected state.

10. The relay according to claim 9, characterized in that When the contact device switches from the first state to the second state, the first link mechanism moves, driving the second link mechanism to move, thereby driving the first terminal to move relative to the second terminal.

11. The relay according to claim 10, characterized in that The first connecting rod mechanism includes a first rod and a second rod movably connected, the first rod is connected to the power device, and the second rod is connected to the second connecting rod mechanism.

12. The relay according to claim 11, wherein: The first connecting rod mechanism further includes a third rod, one end of the third rod is movably connected to the first rod, and the other end of the third rod is movably connected to the power device.

13. The relay according to claim 12, characterized in that When the contact device switches from the first state to the second state, an angle is formed between the third rod and the second rod, so that the second rod is driven by the first rod.

14. The relay according to claim 12, wherein: When the relay is in the open state, the axis of the third rod coincides with the axis of the second rod to stop the second rod.

15. The relay according to claim 8, characterized in that When the relay is in the disconnected state, the second link mechanism is fixed to restrict the first terminal so that the first terminal and the second terminal remain in the disconnected state.

16. The relay according to claim 15, characterized in that When the contact device switches from the second state to the first state, the second link mechanism moves, driving the first link mechanism to move, thereby driving the first terminal to move relative to the second terminal.

17. The relay according to claim 16, characterized in that The second connecting rod mechanism includes a fourth rod and a fifth rod that are movably connected. The fourth rod is connected to the power device, and the fifth rod is connected to the first connecting rod mechanism.

18. The relay according to claim 17, wherein: The second link mechanism further includes a sixth rod, one end of the sixth rod is movably connected to the fourth rod, and the other end of the sixth rod is connected to the first terminal.

19. The relay according to claim 18, wherein: When the contact device switches from the second state to the first state, an angle is formed between the sixth rod and the fifth rod, so that the fifth rod is driven by the fourth rod.

20. The relay according to claim 18, wherein When the relay is in the disconnected state, the axis of the sixth rod coincides with the axis of the fifth rod to stop the fifth rod.

21. The relay according to claim 8, wherein The transmission device further includes a transmission member; one end of the transmission member is connected to the power device, and the other end is connected to the first connecting rod mechanism and the second connecting rod mechanism.

22. The relay according to claim 21, characterized in that The first link mechanism includes a first rod, one end of which is connected to the transmission member; and / or, The second link mechanism includes a fourth rod, one end of which is connected to the transmission member.

23. The relay according to claim 8, wherein The transmission device further includes a linkage rod, which movably connects the first link mechanism and the second link mechanism so that the first link mechanism and the second link mechanism are linked.

24. The relay according to claim 23, characterized in that The transmission device further comprises a positioning member, which is arranged on the power device, and the linkage rod is movably connected to the positioning member.

25. The relay according to claim 24, characterized in that A limiting hole extending along a first direction is formed on the positioning member, and a portion of the linkage rod is disposed in the limiting hole and is movable along the first direction; The first direction intersects with the extending direction of the axis of the linkage rod.

26. The relay according to any one of claims 1 to 25, characterized in that: The power device includes a driving component and a driven component. The driven component is connected to the transmission device. The driving component drives the driven component to move, thereby driving the transmission device to move.

27. The relay according to claim 26, characterized in that The active component includes a coil component, and the driven component includes a magnetic coupling component. The coil component generates a magnetic field when energized to drive the magnetic coupling component to move, thereby driving the transmission device to move, thereby driving the first terminal to move relative to the second terminal.

28. The relay according to claim 27, characterized in that The magnetic coupling assembly includes a magnetic member; When a forward voltage is applied to the coil assembly, the power device is in the forward working state, and the first terminal moves toward the second terminal; When a reverse voltage is applied to the coil assembly, the power device is in the reverse working state, and the first terminal moves in a direction away from the second terminal.

29. The relay according to claim 27, wherein: The magnetic coupling assembly includes a magnetic conductor; The coil assembly includes a first coil and a second coil. When the first coil is energized, the first terminal moves toward the second terminal. When the second coil is energized, the first terminal moves away from the second terminal.

30. The relay according to claim 27, wherein The transmission device further includes a transmission member connected to the magnetic coupling assembly and the transmission device.

31. The relay according to any one of claims 1 to 25, characterized in that: The first terminal includes: a contact portion disposed opposite to the second terminal; and The movable part has one end connected to the contact part and the other end connected to the transmission device, and the movable part drives the contact part to move.

32. The relay according to claim 31, characterized in that The contact device further comprises an elastic member, wherein the elastic member abuts between the contact portion and the movable portion; When the transmission device is not working, the elastic restoring force of the elastic member and the acting force of the transmission device act together to relatively fix the first terminal and the second terminal.

33. A control system, characterized in that: Comprising a relay as described in any one of claims 1-32.

34. A vehicle, characterized in that: Comprising the relay according to any one of claims 1 to 32 or the control system according to claim 33.

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