Relay and vehicle

Abstract

The application discloses a relay and a vehicle, and is applied to the technical field of relays. The relay comprises a first contact, a second contact, a connecting assembly, a second core, a magnet, a first coil and a second coil. The connecting assembly comprises a connecting piece, a connecting shaft and a first core. The connecting shaft is connected with the connecting piece and the first core. The connecting piece is configured to move towards or away from the first contact and the second contact to turn on or turn off the first contact and the second contact. The second core is arranged between the connecting piece and the first core. In the case that the connecting piece turns on the first contact and the second contact, the upper surface of the first core and the lower surface of the second core are attached. The magnet is arranged on both sides of the second core, and the height of the magnet is lower than the height of the second core. The first coil and the second coil are arranged on both sides of the second core, and the magnet is located between the first coil and the second coil. In this way, the relay has high attraction holding force, and the stability and safety of the relay are improved.

Description

Technical Field

[0001] This application belongs to the field of relay technology, and in particular relates to a relay and a vehicle. Background Technology

[0002] A relay is an electrical control device that plays a role in circuits, including automatic adjustment, safety protection, and circuit switching. A relay uses a small current or voltage signal to control the switching of a circuit with a larger current or voltage. When the input quantity (such as current or voltage) reaches a preset value, the relay performs the corresponding action, turning the controlled circuit on or off, thereby achieving functions such as signal amplification, circuit isolation, or multi-loop control.

[0003] Under conditions of strong environmental interference or high-current loads, relays may experience contact loosening or erroneous operation due to severe vibration, impact, Joule heating, or strong electromagnetic interference. This severely affects the relay's operational stability and can even lead to safety hazards, threatening the safety of the system in which the relay is located. Relays with high holding force effectively reduce the probability of loosening, lower contact resistance, reduce heat generation and arcing losses during high-current operation, and improve overall safety and reliability.

[0004] Therefore, it is very important for relays to have a large holding force. Summary of the Invention

[0005] This application aims to address at least one of the technical problems existing in the prior art. To this end, this application proposes a relay and vehicle that enable the relay to have a high pull-in and holding force, thereby improving the stability and safety of the relay.

[0006] Firstly, this application provides a relay comprising:

[0007] First contact, second contact;

[0008] A connecting assembly, the connecting assembly including a connector, a connecting shaft and a first iron core, the connecting shaft connecting the connector and the first iron core, the connector being configured to move toward or away from the first contact and the second contact to connect or disconnect the first contact and the second contact;

[0009] The second iron core is disposed between the connector and the first iron core. When the connector is conducting the first contact and the second contact, the upper surface of the first iron core and the lower surface of the second iron core are in contact.

[0010] Magnets are disposed on both sides of the second iron core, and the height of the magnets is lower than the height of the second iron core;

[0011] A first coil and a second coil are both disposed on both sides of the second iron core, and the magnet is located between the first coil and the second coil.

[0012] In some embodiments, the connecting assembly further includes a first spring and a second spring, both of which are sleeved on the connecting shaft. The first spring is disposed between the connector and the second iron core, with its two ends respectively abutting against the connector and the second iron core. The second spring is disposed between the first iron core and the second iron core, with its two ends respectively abutting against the first iron core and the second iron core.

[0013] In some embodiments, the connecting assembly further includes a sleeve, the sleeve including a cylindrical wall and a bottom wall, the cylindrical wall and the bottom wall forming a receiving space, the sleeve also having an opening, the opening being disposed at the end of the cylindrical wall away from the bottom wall, the first iron core being located in the receiving space, the first iron core abutting against the bottom wall when the first contact and the second contact are disconnected, and the second iron core being disposed at the opening.

[0014] In some embodiments, there is a gap between the outer wall of the first iron core and the inner wall of the cylinder wall.

[0015] In some embodiments, the relay further includes a bracket, the bracket including a top wall, a side wall and a bottom wall, the bracket having a through hole that penetrates the top wall and the bottom wall, and the connecting component disposed in the through hole.

[0016] In some embodiments, the sidewall has a first mounting groove, a second mounting groove and a third mounting groove arranged sequentially, the first coil is disposed in the first mounting groove, the magnet is disposed in the second mounting groove and the second coil is disposed in the third mounting groove.

[0017] In some embodiments, the bracket is further provided with a fourth mounting slot, which connects the first mounting slot and the third mounting slot, and the first coil and the second coil are connected through the fourth mounting slot.

[0018] In some embodiments, the connecting assembly further includes a sleeve, the sleeve including a cylindrical wall and a bottom wall, the end of the cylindrical wall away from the bottom wall being provided with a flange, and the top wall being provided with a fifth mounting groove, the flange being disposed in the fifth mounting groove.

[0019] In some embodiments, the relay further includes a first housing, wherein the first contact and the second contact are both disposed on the outer wall of the first housing.

[0020] In some embodiments, the relay further includes a second housing, the first housing is disposed on the second housing, the connecting assembly is disposed through the bottom wall of the first housing and the top wall of the second housing, and the first iron core, the second iron core, the first coil, the second coil, the magnet and the support of the relay are all located inside the second housing.

[0021] Secondly, this application provides a vehicle that includes any of the relays described above.

[0022] The relay and vehicle provided in this application embodiment generate upper and lower magnetic circuits with opposite directions on the connecting assembly using a magnet. By energizing the first coil and / or the second coil, the magnetic circuits generated by the magnet can be strengthened or weakened accordingly. Placing the second iron core above the first iron core can effectively enhance the electromagnetic force generated by the upper magnetic circuit on the first iron core.

[0023] By placing magnets on both sides of the second iron core and limiting their height, the gain of the magnets on the upper and lower magnetic circuits of the connecting assembly can be balanced. This balances the electromagnetic force of the upper and lower magnetic circuits on the first iron core, ensuring that the first iron core has a high holding force when the connecting assembly is conducting or disconnecting the first and second contacts. This improves the relay's shock and vibration resistance, reduces the probability of false activation and false disconnection, and enhances the relay's stability and safety.

[0024] Additional aspects and advantages of embodiments of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of embodiments of this application. Attached Figure Description

[0025] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0026] Figure 1 This is a schematic diagram of the structure of the relay provided in the embodiment of this application (sectional view along the connection direction of the first contact and the second contact lead-out terminals);

[0027] Figure 2 This is a structural schematic diagram of the components of the relay provided in the embodiments of this application, excluding the first housing, the first contact, and the second contact;

[0028] Figure 3 This is a first three-dimensional exploded view of the components of the relay provided in the embodiments of this application, excluding the first housing, the first contact, and the second contact.

[0029] Figure 4This is a second three-dimensional exploded view of the components of the relay provided in the embodiments of this application, excluding the first housing, the first contact, and the second contact;

[0030] Figure 5 This is a schematic diagram of the structure of the relay bracket provided in the embodiments of this application;

[0031] Figure 6 This is a schematic diagram of the magnetic circuit and force state of the relay in the open state provided in the embodiments of this application;

[0032] Figure 7 This is a schematic diagram of the magnetic circuit and force state of the relay in the closed state provided in the embodiments of this application;

[0033] Figure 8 This is a schematic diagram of the vehicle structure provided in the embodiments of this application.

[0034] Explanation of reference numerals in the attached figures:

[0035] Relay 100, first contact 11, second contact 12, connecting assembly 20, connector 21, connecting shaft 22, first iron core 23, first spring 24, second spring 25, sleeve 26, second iron core 31, magnet 32, first coil 33, second coil 34, bracket 40, through hole 41, first mounting slot 42, second mounting slot 43, third mounting slot 44, fourth mounting slot 45, fifth mounting slot 46, first housing 50, second housing 60, top wall of second housing 61, bottom wall of second housing 62, vehicle 200. Detailed Implementation

[0036] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0037] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more features. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0038] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. They can refer to a mechanical connection or an electrical connection. They can refer to a direct connection or an indirect connection through an intermediate medium, and they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0039] The following disclosure provides many different embodiments or examples for implementing various structures of the invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0040] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 , Figure 1 This is a schematic diagram of the structure of the relay provided in this application (sectional view along the connection direction of the first contact and the second contact lead-out terminals). The relay 100 will be described in detail below:

[0041] The relay 100 includes a first contact 11, a second contact 12, a connecting assembly 20, a second iron core 31, a magnet 32, a first coil 33, and a second coil 34;

[0042] The connecting assembly 20 includes a connector 21, a connecting shaft 22 and a first iron core 23. The connecting shaft 22 connects the connector 21 and the first iron core 23. The connector 21 is configured to move toward or away from the first contact 11 and the second contact 12 to connect or disconnect the first contact 11 and the second contact 12.

[0043] Both the first contact 11 and the second contact 12 are configured as connecting wires, and both are connected to an external circuit through corresponding wires. When the first contact 11 and the second contact 12 are connected through the connector 21, it is equivalent to the corresponding wires of the first contact 11 and the second contact 12 being connected, and the external circuit is in a conductive state; when the first contact 11 and the second contact 12 are disconnected, it is equivalent to the corresponding wires of the first contact 11 and the second contact 12 not being connected, and the external circuit is in a disconnected state.

[0044] Optionally, the materials of the first contact 11 and the second contact 12 may be the same or different. The materials of the first contact 11 and the second contact 12 include: pure metals (such as silver and platinum), metal alloys (such as silver-nickel alloys, silver-zinc oxide alloys, and copper-chromium alloys), composite materials (such as cuprous oxide and silver plating on a copper substrate), etc. This application embodiment does not limit this.

[0045] The connecting member 21, connecting shaft 22, and first iron core 23 in the connecting assembly 20 move in the same direction and distance. For example, when the first iron core 23 moves toward the first contact 11 and the second contact 12, the connecting member 21 moves toward the first contact 11 and the second contact 12 via the connecting shaft 22.

[0046] The connector 21 is conductive, and when the first contact 11 and the second contact 12 are connected, the connector 21 can conduct current between the first contact 11 and the second contact 12.

[0047] Optionally, the material of the connector 21 can be a copper-based alloy (such as beryllium bronze or phosphor bronze), an iron-based alloy (such as spring steel), or a composite material (such as a copper alloy with a silver-plated surface), etc. This application embodiment does not limit this.

[0048] Optionally, the first contact 11 and the second contact 12 are located on the same side of the connector 21 and are symmetrically distributed about the center of the connector 21, and the connecting shaft 22 is located on the other side of the connector 21 and is connected to the center of the connector 21.

[0049] The connecting shaft 22 connects the center of the connecting piece 21 and the center of the first iron core 23;

[0050] Optionally, the material of the connecting shaft 22 can be a metal material (such as austenitic stainless steel, titanium alloy, beryllium bronze), a ceramic material (such as alumina ceramic, zirconia ceramic), a composite material (such as titanium alloy with embedded ceramic particles), etc., and this application embodiment does not limit this.

[0051] The second iron core 31 is disposed between the connector 21 and the first iron core 23. When the connector 21 conducts the first contact 11 and the second contact 12, the upper surface of the first iron core 23 and the lower surface of the second iron core 31 are in contact; the first iron core 23 is fixed and does not move.

[0052] Optionally, the upper surface of the first iron core 23 and the lower surface of the second iron core 31 are annular in shape, and the diameter of the central circle of the annulus matches the diameter of the connecting shaft 22. The annular diameter of the lower surface of the second iron core 31 can be larger than the annular diameter of the upper surface of the first iron core 23. The bottom of the first iron core 23 is a disk, and the first iron core 23 is a combination of an annular cylinder and a disk. The second iron core 31 is an annular cylinder, and the connecting shaft 22 passes through the annular cylinders of the second iron core 31 and the first iron core 23.

[0053] Among them, magnets 32 are disposed on both sides of the second iron core 31, and the height of magnets 32 is lower than the height of the second iron core 31.

[0054] The first coil 33 and the second coil 34 are both located on both sides of the second iron core 31, and the magnet 32 ​​is located between the first coil 33 and the second coil 34.

[0055] Magnet 32 ​​will generate upper and lower magnetic circuits with opposite directions on the connecting component 20; when the first coil 33 and the second coil 34 are energized (forward or reverse excitation), the magnetic effect of the current will generate a corresponding magnetic field on the connecting component 20, thereby strengthening the upper or lower magnetic circuit.

[0056] Please see Figure 7 When the connector 21 connects the first contact 11 and the second contact 12, and the upper surface of the first iron core 23 and the lower surface of the second iron core 31 are in contact, there is no air gap between the first iron core 23 and the second iron core 31, and the magnetic resistance is very low. Under this condition, the magnetic flux density in the upper magnetic circuit is very high, which makes the attraction and holding force between the first iron core 23 and the second iron core 31 very high. This can effectively improve the vibration and shock resistance of the relay 100, improve the ability to resist the electric repulsion force caused by short circuit, and thus improve the overall stability of the relay 100.

[0057] Please see Figure 6When the connector 21 disconnects the first contact 11 and the second contact 12, the upper surface of the first iron core 23 and the lower surface of the second iron core 31 separate. The height of the magnet 32 ​​is lower than the height of the second iron core 31, resulting in an air gap between the magnet 32 ​​and the second iron core 31. This air gap significantly increases the magnetic reluctance. The electromagnetic force generated by the lower magnetic circuit on the first iron core 23 in the direction away from the first contact 11 and the second contact 12 is significantly greater than the electromagnetic force generated by the upper magnetic circuit. Therefore, the relay 100 can maintain a stable disconnected state.

[0058] Optionally, the materials of the first iron core 23 and the second iron core 31 may be the same or different. The materials of the first iron core 23 and the second iron core 31 include: soft magnetic ferrite (such as manganese zinc ferrite, nickel zinc ferrite), soft magnetic metal (such as electrical steel, iron-nickel alloy, industrial pure iron), soft magnetic composite material (such as iron-silicon-aluminum, iron-nickel-molybdenum), etc. The embodiments of this application do not limit this.

[0059] Optionally, the material of magnet 32 ​​can be ferrite permanent magnet, neodymium iron boron permanent magnet, AlNiCo permanent magnet, samarium cobalt permanent magnet, etc., and this application embodiment does not limit it.

[0060] Optionally, the first coil 33 and the second coil 34 can be made of two different wires. The relay 100 is turned on by controlling one coil and turned off by controlling the other coil. The materials of the first coil 33 and the second coil 34 can be the same or different. The materials of the first coil 33 and the second coil 34 include: copper enameled wire, silver-plated copper wire, tin-plated copper wire, enameled aluminum wire, etc. The embodiments of this application do not limit this.

[0061] In some embodiments, please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 The connecting assembly 20 also includes a first spring 24 and a second spring 25. The first spring 24 and the second spring 25 are both sleeved on the connecting shaft 22. The first spring 24 is disposed between the connecting member 21 and the second iron core 31, and the two ends of the first spring 24 respectively abut against the connecting member 21 and the second iron core 31. The second spring 25 is disposed between the first iron core 23 and the second iron core 31, and the two ends of the second spring 25 respectively abut against the first iron core 23 and the second iron core 31.

[0062] When the connector 21 disconnects the first contact 11 and the second contact 12, the first spring 24 is not compressed and does not generate a spring force on the connector 21; the second spring 25 is compressed and provides a spring force to the first iron core 23 away from the first contact 11 and the second contact 12, further enhancing the stability of the relay 100 in maintaining the disconnected state.

[0063] During the process of the connector 21 moving from disconnection to connection of the first contact 11 and the second contact 12, the first iron core 23 moves towards the first contact 11 and the second contact 12, driving the connecting shaft 22 and the first spring 24 to move towards the first contact 11 and the second contact 12, and the first spring 24 is compressed. When the connector 21 connects the first contact 11 and the second contact 12, the first spring 24 provides the connector 21 with a spring force towards the first contact 11 and the second contact 12, realizing the overtravel of the first contact 11 and the second contact, so that the connector 21 and the first contact 11, and the connector 21 and the second contact 12 maintain sufficient contact pressure, reducing the contact resistance between the connector 21 and the first contact 11, and between the connector 21 and the second contact 12, thereby reducing current loss, reducing the temperature and wear of the first contact 11 and the second contact 12, and improving the conductivity, reliability and service life of the relay 100.

[0064] Optionally, the materials of the first spring 24 and the second spring 25 may be the same or different. The materials of the first spring 24 and the second spring 25 include: metal materials (such as beryllium bronze, phosphor bronze, stainless steel, high carbon steel wire), alloy materials (such as nickel titanium alloy, constant elasticity alloy), etc. This application embodiment does not limit this.

[0065] In some embodiments, please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 The connecting assembly 20 also includes a sleeve 26, which includes a cylindrical wall and a bottom wall, forming a receiving space. The sleeve 26 also has an opening, which is located at the end of the cylindrical wall away from the bottom wall. The first iron core 23 is located in the receiving space. When the first contact 11 and the second contact 12 are disconnected, the first iron core 23 abuts against the bottom wall. The second iron core 31 is located at the opening.

[0066] Sleeve 26 provides mechanical protection for the first iron core 23 and the second iron core 31, constraining the movement trajectory of the first iron core 23 and preventing it from deviating from the sleeve 26 and causing scraping or jamming, thus ensuring the operating accuracy of the first iron core 23. Sleeve 26 is made of non-magnetic material to prevent the shunting of magnetic lines of force in the first iron core 23 and the second iron core 31, and to prevent a reduction in the holding force of relay 100. Sleeve 26 also provides environmental protection for the first iron core 23 and the second iron core 31, preventing moisture, dust, and corrosive gases (such as sulfides) from causing rust or surface oxidation of the first iron core 23 and / or the second iron core 31, thereby affecting the magnetic permeability and mechanical properties.

[0067] The second iron core 31 is fixed at the opening position. After the sleeve 26 is closed, the size of the air gap is fixed, and the magnetic resistance of the air gap is stabilized.

[0068] Optionally, the sleeve 26 can be formed by surrounding the side of a cylinder and together with the bottom wall to form a receiving space; the bottom wall of the sleeve 26 can be circular, square or other shapes; the material of the sleeve 26 can be metal (such as austenitic stainless steel, copper alloy, aluminum alloy), engineering plastic (such as polyoxymethylene, nylon, polycarbonate), alumina ceramic, etc., and this application embodiment does not limit this.

[0069] In some embodiments, please refer to Figure 1 , Figure 3 and Figure 4 There is a gap between the outer wall of the first iron core 23 and the inner wall of the cylinder.

[0070] This prevents the first iron core 23 from rubbing against the sleeve 26, thus reducing the service life of the relay 100. At the same time, it allows the gas in the sleeve 26 to transfer between the top and bottom of the first iron core 23, increasing the magnetic resistance in different areas.

[0071] Optionally, the inner bottom wall of the first iron core 23 and the sleeve 26 is circular, and the diameter of the bottom wall of the first iron core 23 is smaller than the diameter of the inner bottom wall of the sleeve 26; or the area of ​​the inner bottom wall of the sleeve 26 is larger than the area of ​​the bottom wall of the first iron core 23.

[0072] In some embodiments, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The relay 100 also includes a bracket 40, which includes a top wall, a side wall and a bottom wall. The bracket 40 has a through hole 41 that penetrates the top wall and the bottom wall. The connecting component 20 is disposed in the through hole 41.

[0073] In this way, the position of the connecting component 20 in the relay 100 is kept in a fixed direction of movement, avoiding friction between the connecting component 20 and other components, reducing wear on the connecting component 20, and improving the service life of the relay 100.

[0074] In some embodiments, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The side wall has a first mounting groove 42, a second mounting groove 43 and a third mounting groove 44 arranged sequentially. The first coil 33 is arranged in the first mounting groove 42, the magnet 32 ​​is arranged in the second mounting groove 43 and the second coil 34 is arranged in the third mounting groove 44.

[0075] Please see Figure 6 and Figure 7The first mounting slot 42 and the third mounting slot 44 are annular and symmetrically distributed about the second mounting slot 43. The first coil 33 is evenly wound on the first mounting slot 42 and the second coil 34 is evenly wound on the third mounting slot 44. In this way, the magnetic field generated by the first coil 33 and the second coil 34 after being energized is evenly distributed in the through hole 41, and the electromagnetic force provided by the first coil 33 and the second coil 34 acts evenly on the first iron core 23, thereby improving the stability of the relay 100.

[0076] Optionally, the first mounting groove 42 and the third mounting groove 44 may also be other shapes, which are not limited in this embodiment.

[0077] Please continue reading. Figure 6 and Figure 7 There are two second mounting slots 43, which are symmetrical about the through hole 41. There are two magnets 32, and the shape of the magnets 32 matches the second mounting slots 43. The two magnets 32 are respectively placed in the two second mounting slots 43, so that the magnetic circuit provided by the two magnets 32 for the connecting assembly 20 is symmetrical about the connecting shaft 22, and the electromagnetic force on the first iron core 23 is symmetrical about the connecting shaft 22, thereby improving the stability of the relay 100.

[0078] Thus, the bracket 40 provides physical support for the first coil 33, the magnet 32, and the second coil 34, preventing displacement and enhancing the structural stability of the relay 100.

[0079] In some embodiments, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The bracket 40 also has a fourth mounting slot 45, which connects the first mounting slot 42 and the third mounting slot 44. The first coil 33 and the second coil 34 are connected through the fourth mounting slot 45.

[0080] In this way, the same coil can be used to form a first coil 33 in the first mounting slot 42, and then through the fourth mounting slot 45 to the third mounting slot 44, where a second coil 34 is formed. Thus, the on / off state of the relay 100 can be controlled by controlling the forward or reverse excitation of this coil. Compared to controlling the first coil 33 and the second coil 34 separately, a matching drive circuit can be eliminated, simplifying the control circuit and reducing the hardware cost of the relay 100.

[0081] In some embodiments, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The connecting component 20 also includes a sleeve 26, which includes a cylinder wall and a bottom wall. The end of the cylinder wall away from the bottom wall is provided with a flange, and the top wall is also provided with a fifth mounting groove 46, in which the flange is located.

[0082] The connecting component 20 is disposed in the through hole 41, and the sleeve 26 is disposed in the through hole 41. The flange of the sleeve 26 fits into the fifth mounting groove 46, making the connection between the sleeve 26 and the bracket 40 more stable, preventing the sleeve 26 from sliding relative to the through hole 41 of the bracket 40, maintaining the stability of the first iron core 23 and the second iron core 31 inside the sleeve 26, thereby improving the overall stability of the relay 100.

[0083] In some embodiments, please continue reading Figure 1 The relay 100 also includes a first housing 50, and the first contact 11 and the second contact 12 are both disposed on the outer wall of the first housing 50.

[0084] The first housing 50 provides mechanical protection and structural support for the first contact 11 and the second contact 12, fixing their positions and preventing external mechanical forces from damaging them, thus improving the safety of the relay 100. The first housing 50 also provides insulation for the first contact 11 and the second contact 12, preventing short circuits or leakage. The first housing 50 can also employ a magnetic shielding structure to suppress the electromagnetic fields generated by the first contact 11 and the second contact 12 during switching, thus preventing interference to the internal components of the relay 100 (such as the first iron core 23 and the magnet 32) and ensuring the stability of the relay 100.

[0085] Optionally, the first contact 11 and the second contact 12 are both disposed on the top wall of the first housing 50, or both are disposed on the side wall of the first housing 50; the first contact 11 and the second contact 12 can be connected to the outer wall of the first housing 50 by brazing (by melting the filler metal and utilizing the diffusion effect between the filler metal and the first housing 50 to achieve welding).

[0086] Optionally, the first housing 50 may be an insulating material (such as nylon, alumina ceramic, silicone rubber), a metal material with an insulating liner (such as stainless steel, aluminum alloy, iron-nickel alloy), etc., and the embodiments of this application do not limit this.

[0087] Optionally, the internal space of the first housing 50 may also be provided with an arc extinguishing device (such as an arc extinguishing cover) to eliminate the arc in the event of an arc at the first contact 11 and / or the second contact 12, thereby improving the safety of the relay 100.

[0088] In some embodiments, please refer to Figure 1 , Figure 2 , Figure 3and Figure 4 The relay 100 also includes a second housing 60, a first housing 50 is disposed on the second housing 60, a connecting assembly 20 is disposed through the bottom wall of the first housing 50 and the top wall 61 of the second housing 60, and the first iron core 23, the second iron core 31, the first coil 33, the second coil 34, the magnet 32 ​​and the bracket 40 of the relay 100 are all located inside the second housing 60.

[0089] The second housing 60 provides mechanical protection for internal components (such as the bracket 40, magnet 32, first iron core 23, etc.), positions the relative positions of each internal component, reduces wear on the internal components, protects against impact and vibration, prevents dust and foreign objects, and extends the service life of the relay 100. The second iron core 31 is fixedly installed on the inner top wall of the second housing 60; the magnet 32, together with the internal components, forms an upper magnetic circuit and a lower magnetic circuit through the second housing 60; when the first coil 33 and / or the second coil 34 are energized, the generated magnetic field can selectively enhance the upper magnetic circuit or the lower magnetic circuit.

[0090] With the lower magnetic circuit enhanced, relay 100 remains in a stable open state; with the upper magnetic circuit enhanced, relay 100 remains in a stable closed state.

[0091] The second housing 60 is also used to optimize the upper and lower magnetic circuits generated by the internal components. The second housing 60 forms a magnetic shielding layer to suppress the interference of external stray magnetic fields on the internal magnetic field and prevent the relay 100 from being mis-connected or mis-disconnected. The second housing 60 is also used to guide the magnetic lines of force to concentrate in the upper and lower magnetic circuits, reduce leakage magnetic loss, and improve the holding force of the relay 100 in the disconnected and connected states.

[0092] Optionally, the top wall 61 and bottom wall 62 of the second housing 60 can be disassembled and assembled to facilitate the placement of various internal components; the material of the second housing 60 can be a magnetically conductive material (such as iron-nickel alloy, electrical steel), engineering plastic (such as polyphenylene sulfide, polyamide 9T), metal material (such as aluminum alloy, stainless steel, titanium alloy), etc., and this application embodiment does not limit this.

[0093] This application also provides a vehicle 200, which includes the relay 100 in any of the above embodiments.

[0094] In some embodiments, please refer to Figure 8 , Figure 8This is a schematic diagram of the structure of a vehicle 200 provided in this application embodiment. The vehicle 200 includes a relay 100. The relay 100 can maintain the switching on and off of the internal circuits of the vehicle 200 with low power consumption. The high holding force of the relay 100 can also prevent the vehicle 200 from jumping during driving vibrations. Moreover, in the event of a large current inside the vehicle 200, the relay 100 can reduce the probability of arcing, thereby reducing the risk of fire and explosion. In this way, the overall safety and stability of the vehicle 200 are improved, and the service life of the battery in the vehicle 200 is extended.

[0095] In the description of this specification, the references to terms such as "some embodiments," "in one example," "exemplarily," etc., indicate that a specific feature, structure, material, or characteristic described in connection with an embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0096] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A relay, characterized in that, include: First contact, second contact; A connecting assembly, the connecting assembly including a connector, a connecting shaft and a first iron core, the connecting shaft connecting the connector and the first iron core, the connector being configured to move toward or away from the first contact and the second contact to connect or disconnect the first contact and the second contact; The second iron core is disposed between the connector and the first iron core. When the connector is conducting the first contact and the second contact, the upper surface of the first iron core and the lower surface of the second iron core are in contact. Magnets are disposed on both sides of the second iron core, and the height of the magnets is lower than the height of the second iron core; A first coil and a second coil are both disposed on both sides of the second iron core, and the magnet is located between the first coil and the second coil.

2. The relay according to claim 1, characterized in that, The connecting assembly further includes a first spring and a second spring, both of which are sleeved on the connecting shaft. The first spring is disposed between the connecting member and the second iron core, with its two ends respectively abutting against the connecting member and the second iron core. The second spring is disposed between the first iron core and the second iron core, with its two ends respectively abutting against the first iron core and the second iron core.

3. The relay according to claim 1 or 2, characterized in that, The connecting assembly further includes a sleeve, which includes a cylindrical wall and a bottom wall, forming a receiving space. The sleeve also has an opening, which is located at the end of the cylindrical wall away from the bottom wall. The first iron core is located in the receiving space. When the first contact and the second contact are disconnected, the first iron core abuts against the bottom wall. The second iron core is located at the opening.

4. The relay according to claim 3, characterized in that, There is a gap between the outer wall of the first iron core and the inner wall of the cylinder.

5. The relay according to claim 1, characterized in that, The relay also includes: The bracket includes a top wall, side walls and a bottom wall, and the bracket has a through hole that penetrates the top wall and the bottom wall. The connecting component is disposed in the through hole.

6. The relay according to claim 5, characterized in that, The side wall has a first mounting groove, a second mounting groove and a third mounting groove arranged in sequence. The first coil is arranged in the first mounting groove, the magnet is arranged in the second mounting groove and the second coil is arranged in the third mounting groove.

7. The relay according to claim 6, characterized in that, The bracket also has a fourth mounting slot, which connects the first mounting slot and the third mounting slot. The first coil and the second coil are connected through the fourth mounting slot.

8. The relay according to claim 5, characterized in that, The connecting assembly further includes a sleeve, which includes a cylinder wall and a bottom wall. The end of the cylinder wall away from the bottom wall is provided with a flange, and the top wall is also provided with a fifth mounting groove, in which the flange is disposed.

9. The relay according to claim 1, characterized in that, The relay also includes a first housing, and the first contact and the second contact are both disposed on the outer wall of the first housing.

10. The relay according to claim 9, characterized in that, The relay also includes a second housing, the first housing is disposed on the second housing, the connecting assembly is disposed through the bottom wall of the first housing and the top wall of the second housing, and the first iron core, the second iron core, the first coil, the second coil, the magnet and the bracket of the relay are all located inside the second housing.

11. A vehicle, characterized in that, Includes the relay as described in any one of claims 1-10.

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