Integrated relay, electrical device, and vehicle

Abstract

A vehicle. The vehicle is provided with an electrical device; the electrical device comprises an integrated relay; the integrated relay comprises a housing and multiple relay cores; the housing is integrally formed and has a mounting cavity; and the multiple relay cores are arranged at intervals and jointly encapsulated in the mounting cavity. According to the technical solution of the present application, the relay cores with casings removed are encapsulated in the mounting cavity of the housing.

Description

Integrated relays, electrical equipment and vehicles

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application is based on the Chinese patent application with application number 2024202357347 and application date of January 30, 2024, and claims the priority of the Chinese patent application. The entire content of the Chinese patent application is hereby incorporated into this application by introduction. Technical Field

[0003] The present application relates to the field of relay technology, and in particular to an integrated relay, electrical equipment and vehicle. Background Art

[0004] Relays, as common controllable electronic switches, are widely used in various high and low voltage circuits. For an electrical device, multiple relays are often required to work together to achieve circuit control.

[0005] However, in the related art, the integration method of relays has low space utilization of electrical equipment and is not conducive to the miniaturization of electrical equipment. Technical Solutions

[0006] The purpose of this application is to provide an integrated relay, electrical equipment and vehicle, aiming to solve the problem that existing integrated relays occupy a large space.

[0007] To achieve the purpose of the present application, in a first aspect, the present application provides an integrated relay, which includes: a housing, which is an integral piece and has an installation cavity; a plurality of relay cores, which are arranged at intervals from each other and are collectively encapsulated in the installation cavity.

[0008] In some embodiments, the integrated relay further includes a potting compound, and the potting compound is filled in the mounting cavity to fix the plurality of relay cores.

[0009] In some embodiments, the potting glue is provided between two adjacent relay cores.

[0010] In some embodiments, each of the relay cores includes a first power terminal, a second power terminal, and a contact member, wherein the contact member is used to electrically connect or disconnect the first power terminal and the second power terminal.

[0011] In some embodiments, the first power terminal and the second power terminal are both partially covered by the potting compound, and / or the second power terminal is partially covered by the potting compound.

[0012] In some embodiments, the housing has an opening, the opening is communicated with the installation cavity, the first power terminal and the second power terminal are located in the opening, and the opening is sealed by the potting compound.

[0013] In some embodiments, the first power terminal and the second power terminal protrude from the housing through the opening.

[0014] In some embodiments, the relay core further includes a fixing member, and the first power terminal and the second power terminal are fixed to the fixing member.

[0015] In some embodiments, the integrated relay further includes a potting compound, which is filled in the mounting cavity to fix the multiple relay cores; the relay core further includes an arc extinguishing cover, which is arranged on the periphery of the fixing member, and the arc extinguishing cover is in direct contact with the potting compound.

[0016] In some embodiments, the relay core further includes a drive assembly, which is used to drive the contact to move, and the drive assembly includes: a stator, which includes a stator core and a coil provided on the stator core; and a mover, which is at least partially sleeved in the stator, and one end of the mover is connected to the contact to drive the contact to move, thereby electrically connecting or disconnecting the first power terminal and the second power terminal.

[0017] In some embodiments, the integrated relay further includes a potting compound, which is filled in the mounting cavity to fix the plurality of relay cores; and the stator is directly in contact with and connected to the potting compound.

[0018] In some embodiments, the relay core further includes a signal pin, one end of which is connected to the coil, and the other end of which is suitable for being connected to a circuit board.

[0019] In a second aspect, the present application provides an electrical device, which includes an integrated relay, and the integrated relay includes: a shell, which is an integral part and has an installation cavity; a plurality of relay cores, which are arranged at intervals from each other and are jointly encapsulated in the installation cavity.

[0020] In some embodiments, the electrical equipment further includes a first wiring copper busbar and a second wiring copper busbar; the first wiring copper busbar includes a first end and a second end arranged opposite to each other, the first end is welded to the first power terminal, and the second end is used to be connected to the control circuit; and / or, the second wiring copper busbar includes a third end and a fourth end arranged opposite to each other, the third end is welded to the second power terminal, and the fourth end is used to be connected to the control circuit.

[0021] In some embodiments, the integrated relay further includes a potting compound, which is filled in the mounting cavity to fix the multiple relay cores; the electrical equipment further includes a first wiring copper busbar and a second wiring copper busbar; the first wiring copper busbar has a first end, the first end is connected to the first power terminal, and the first end and the first power terminal are both covered by the potting compound; and / or the second wiring copper busbar has a third end, the third end is connected to the second power terminal, and the third end and the second power terminal are both covered by the potting compound.

[0022] In a third aspect, the present application provides a vehicle, comprising electrical equipment, the electrical equipment comprising an integrated relay, the integrated relay comprising: a housing, the housing being an integral piece and having an installation cavity; a plurality of relay cores, the plurality of relay cores being spaced apart from each other and collectively encapsulated in the installation cavity.

[0023] The technical solution of the present application encapsulates the relay core without the outer shell in the installation cavity of the shell, thereby reducing the volume of a single relay core, thereby reducing the volume of the integrated relay and improving the aperture utilization of the integrated relay for electrical equipment. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0025] FIG1 is a block diagram of a vehicle.

[0026] Figure 2 is a topological diagram of the application of integrated relays in motor control systems.

[0027] FIG3 is a schematic diagram of the three-dimensional structure of an integrated relay in one embodiment.

[0028] FIG4 is a cross-sectional view of the relay core in FIG3 .

[0029] FIG5 is a schematic diagram of the assembly of the relay core and the first and second copper busbars in FIG2 .

[0030] FIG6 is a schematic diagram of an assembly of the relay core and the circuit board in FIG2 according to an embodiment.

[0031] FIG7 is a schematic diagram of an assembly of the relay core and the circuit board in another embodiment of FIG2 .

[0032] Explanation of the reference numerals: 200, vehicle; 201, vehicle body; 202, wheel; 203, electrical equipment; 2031, integrated relay; 2000, electrical equipment; 1000, integrated relay; 1, housing; 11, mounting cavity; 2, potting compound; 3, relay core; 31, first power terminal; 32, second power terminal; 33, contact piece; 331, main body; 332, first contact portion; 333, second contact portion; 34, fixing piece; 341, cavity; 35, first copper busbar; 36, second copper busbar; 37, sealing cover; 371, third through hole; 38, drive assembly; 381, mounting bracket; 382, ​​stator; 3821, coil; 3822, stator iron Core; 383, mover; 3831, body; 3832, connecting shaft; 39, first spring; 310, second spring; 320, arc extinguishing cover; 4, signal pin; 5, circuit board; K1, first relay core; K2, second relay core; K3, third relay core; K4, fourth relay core; K5, fifth relay core; K6, sixth relay core; K7, seventh relay core; 2100, battery; 2110, first battery; 2120, second battery; 2200, motor controller; R1, first resistor; R2, second resistor; C1, first capacitor; C2, second capacitor; 2300, DC connector; 3000, motor. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0034] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may be an intermediate component. When a component is referred to as being "connected to" another component, it may be directly connected to the other component or there may be an intermediate component.

[0035] Unless otherwise defined, all technical and scientific terms used in this application have the same meanings as those commonly understood by those skilled in the art to which this application belongs. The terms used in this specification are for the purpose of describing specific embodiments only and are not intended to limit this application. The term "and / or" as used in this application includes any and all combinations of one or more of the relevant listed items.

[0036] The following describes some embodiments of the present application in detail with reference to the accompanying drawings. In the absence of conflict, the following embodiments and features therein may be combined with each other.

[0037] Referring to Figure 1 , this application proposes a vehicle 200 , which can be either an electric vehicle or a gasoline-powered vehicle, without limitation. Vehicle 200 includes a body 201 , wheels 202 , and electrical equipment 203 . Body 201 serves as the vehicle's supporting framework, supporting and connecting the various components of vehicle 200 . Wheels 202 are rotatably mounted on body 201 and are designed to rotate to propel the vehicle forward. Electrical equipment 203 includes an integrated relay 2031 .

[0038] The electrical equipment 203 is installed on the vehicle body 201. The electrical equipment 203 can be a motor control system, a battery pack, or a distribution box. This application does not impose any restrictions on this.

[0039] Taking a motor control system as an example, please refer to Figure 2, which shows a topological diagram of an integrated relay used in a motor control system. Electrical device 2000 includes a battery 2100, a motor controller 2200, and an integrated relay 1000. Battery 2100 is connected to motor controller 2200, storing and releasing electrical energy to maintain normal operation of motor controller 2200. Motor controller 2200 is connected to motor 3000, adjusting the motion parameters of motor 3000 to control the motion of motor 3000 and, through motor 3000, drive the wheels. The integrated relay 1000 is located between the battery 2100 and the motor controller 2200. It controls the flow of current between the two terminals. Specifically, the integrated relay 1000 includes a first relay core K1 and a second relay core K2. The first end of the first relay core K1 is connected to the positive terminal of the battery 2100, and the second end of the first relay core K1 is connected to the motor controller 2200. When the first relay core K1 and the second relay core K2 are engaged, a closed circuit is formed between the battery 2100 and the motor controller 2200, energizing the motor controller 2200. When the first relay core K1 and the second relay core K2 are disconnected, the circuit between the battery 2100 and the motor controller 2200 is disconnected, de-energizing the motor controller 2200.

[0040] Electrical device 2000 also includes a first resistor R1, and integrated relay 1000 also includes a third relay core K3. The first end of third relay core K3 is connected to the positive terminal of battery 2100 and the first end of the first relay, while the second end of third relay core K3 is connected to first resistor R1. The second end of first resistor R1 is connected to the second end of first relay core K1 and the electrical load. When the circuit current is excessive, the controller can control the first relay core K1 to open the circuit and the third relay core K3 to close the circuit. This allows current to flow through first resistor R1 instead of through first relay core K1, increasing circuit resistance and protecting circuit safety.

[0041] Battery 2100 includes a first battery 2110 and a second battery 2120. Electrical device 2000 also includes a second resistor R2. Integrated relay 1000 also includes a fourth relay core K4. A first end of fourth relay core K4 is connected to the negative electrode of first battery 2110 and the positive electrode of second battery 2120. A second end of fourth relay core K4 is connected to the first end of second resistor R2. The second end of second resistor R2 is connected to the neutral line of motor controller 2200. When fourth relay core K4 is energized, current between first battery 2110 and second battery 2120 is directed to ground through second resistor R2. When current flows through second resistor R2, it generates heat due to the resistance of second resistor R2, thereby increasing the temperature of the battery pack and improving the heat dissipation performance of the battery pack in low-temperature environments.

[0042] Electrical device 2000 also includes a DC connector 2300. Integrated relay 1000 includes a fifth relay core K5 and a sixth relay core K6. DC connector 2300 is used to connect to an external power source to introduce electrical energy from the external power source into electrical device 2000. The first end of the fifth relay core K5 is connected to the negative electrode of DC connector 2300, and the second end of the fifth relay core K5 is connected to the negative electrode of battery 2100. The first end of the sixth relay core K6 is connected to the positive electrode of DC connector 2300, and the second end is connected to the positive electrode of battery 2100. When the fifth relay core K5 and the sixth relay core K6 are closed, a closed circuit is formed between DC connector 2300 and battery 2100, allowing current from the external power source to flow through DC connector 2300 to the battery, thereby rapidly charging battery 2100.

[0043] Integrated relay 1000 also includes a seventh relay core K7. A first end of the seventh relay core K7 is connected to the positive electrode of DC connector 2300, and a second end of the seventh relay core K7 is connected to the neutral line of motor controller 2200. The seventh relay core K7 forms a closed circuit with the fifth relay core K5. When the seventh relay core K7 and the fifth relay core K5 are connected under the control of the controller, current from DC connector 2300 can pass through the seventh relay core K7 to the neutral line of motor controller 2200. After introducing additional charging voltage at the neutral line, current reaches battery 2100, thereby boosting the charging voltage of battery 2100 and improving the charging efficiency of the charging device.

[0044] The electrical equipment 2000 also includes a first capacitor C1, the first end of the first capacitor C1 is connected between the second end of the first relay core K1 and the first end of the motor controller 2200, and the first end of the first capacitor C1 is connected to the second end of the sixth relay core K6; the second end of the first capacitor C1 is connected to the second end of the fifth relay core K5, and the first capacitor C1 is used to smooth the circuit voltage, reduce the voltage fluctuation of the circuit, and absorb the harmonics of the circuit, thereby maintaining circuit stability.

[0045] Electrical device 2000 also includes a second capacitor C2. A first end of second capacitor C2 is connected to the positive electrode of DC connector 2300, and a second end of second capacitor C2 is connected to the second end of motor controller 2200. Second capacitor C2 is used to smooth circuit voltage, reduce circuit voltage fluctuations, and absorb circuit harmonics, thereby maintaining a stable current between DC connector 2300 and motor controller 2200.

[0046] Electrical device 2000 may also include an OBC module and / or a DC module. The OBC module and the DC module are connected between the AC connector and the battery. The OBC module is used to convert AC power from the power grid into DC power required by battery 2100 to meet the charging requirements of battery 2100. The DC module is used to convert high-voltage DC power into low-voltage DC power, providing power to low-voltage electrical appliances in the vehicle (such as the power steering system, instrument panel, etc.) and battery 2100.

[0047] Please refer to Figure 3. The integrated relay 1000 includes: a housing 1 and multiple relay cores 3. The housing 1 is an integral part and has a mounting cavity 11. The multiple relay cores 3 are arranged at intervals from each other and are collectively encapsulated in the mounting cavity 11. The technical solution of the present application encapsulates the relay cores 3 after eliminating the outer shell in the mounting cavity 11 of the housing. In this way, the volume of a single relay core 3 is reduced, and the volume of the integrated relay 1000 is further reduced, thereby improving the aperture utilization rate of the integrated relay 1000 for electrical equipment.

[0048] Hereinafter, the integrated relay 1000 provided in this application will be described in detail with reference to the accompanying drawings.

[0049] Integrated relay 1000 includes a housing 1, which serves as the supporting framework of integrated relay 1000 and is used to support and connect the various components of integrated relay 1000. The shape of housing 1 can be rectangular, square, or other regular or irregular shapes, and this application does not impose any restrictions. Housing 1 can be part of an equipment rack or a structure independent of the equipment rack, and this application does not impose any restrictions.

[0050] The housing 1 has an opening and an installation cavity 11. The opening is connected to the installation cavity 11. The relay core 3 can be set in the installation cavity 11 through the opening. Multiple relay cores 3 are arranged in the installation cavity 11 at intervals. The relay core 3 is used to connect to the control circuit of the electrical device. The relay core 3 can control the current flow of the electrical device by controlling its own on and off, thereby realizing different electrical functions. The relay cores 3 can be placed in the installation cavity 11 vertically, horizontally, or partially vertically and partially horizontally. This application does not impose any restrictions on this.

[0051] Integrated relay 1000 also includes a potting compound 2, which is filled within mounting cavity 11 to secure the multiple relay cores 3. Potting compound 2 serves two purposes: first, it secures the relay cores 3 within mounting cavity 11. Second, it provides support for the relay cores 3 within mounting cavity 11, thereby improving the stability of the relay cores 3. Potting compound 2 can be made of one or more of epoxy resin, phenolic resin, and natural fiber, though this application is not limiting. In one embodiment of this application, potting compound 2 comprises one or more of insulating resin, aluminum nitride, and boron nitride. Insulating resin, aluminum nitride, and boron nitride not only have excellent insulation properties but also good thermal conductivity. Potting compound 2 allows heat from the relay cores 3 to be quickly transferred to housing 1 through potting compound 2, and then dissipated outward through housing 1, thereby reducing the impact of accumulated heat on integrated relay 1000 and improving the operational stability of integrated relay 1000.

[0052] In one embodiment of the present application, a potting glue 2 is provided between two adjacent relay cores 3, and the potting glue 2 is filled between the relay cores 3, so as to reduce the gap between the relay cores 3, reduce the shaking amplitude of the relay core 3 when encountering vibration, and improve the shock resistance of the relay core 3.

[0053] Please refer to Figure 4. The relay core 3 includes a first power terminal 31, a second power terminal 32 and a contact 33. The first power terminal 31 and the second power terminal 32 are used to be connected to the circuit of the electrical device. The relay core 3 can control the on / off of the circuit between the first power terminal 31 and the second power terminal 32 to control the on / off of the circuit of the electrical device at that location, thereby realizing circuit control of the electrical device.

[0054] The contact member 33 is movably disposed within the housing 1 and is capable of moving toward or away from the first power terminal 31 and the second power terminal 32 to control the flow of current between the first power terminal 31 and the second power terminal 32. Specifically, the contact member 33 includes a main body 331 and first and second contact portions 332 and 333 disposed at opposite ends of the main body 331. When the contact member 33 approaches the first and second power terminals 31 and 32, the first contact portion 332 of the contact member 33 contacts the first power terminal 31, and the second contact portion 333 contacts the second power terminal 32, thereby establishing electrical continuity between the first and second power terminals 31 and 32. When the connector moves away from the first and second power terminals 31 and 32, the first contact portion 332 of the contact member 33 separates from the first power terminal 31, and the second contact portion 333 separates from the second power terminal 32, disconnecting the electrical circuit between the first and second power terminals 31 and 32.

[0055] The relay core 3 also includes a fixing member 34, which is used to provide support for the arrangement of the first power terminal 31, the second power terminal 32, and the contact member 33. Specifically, the fixing member 34 has a cavity 341 with an opening at one end, and a first through hole and a second through hole are provided on the surface of the fixing member 34, which are connected to the cavity 341. The first power terminal 31 extends into the cavity 341 from the first through hole, and the second power terminal 32 extends into the cavity 341 from the second through hole. The contact member 33 is movably arranged in the cavity 341 and completes contact and separation with the first power terminal 31 and the second power terminal 32 in the cavity 341. The arrangement of the fixing member 34 can provide protection for the movement of the contact member 33. It prevents other structures in the electrical equipment from affecting the movement of the contact member 33, thereby extending the service life of the relay core 3.

[0056] When the contact 33 is separated from the first power terminal 31 and the second power terminal 32, an arc is easily generated, which can cause burns to the contact 33, the first power terminal 31, and the second power terminal 32. To reduce the impact of the arc on the contact 33, the first power terminal 31, and the second power terminal 32, in one embodiment of the present application, the cavity 341 is filled with an arc-extinguishing gas. The arc-extinguishing gas can be hydrogen, nitrogen, or sulfur dioxide, and this application does not impose any restrictions on this. The arc-extinguishing gas is used to extinguish the arc when an arc is generated between the contact 33, the first power terminal 31, and the second power terminal 32, thereby protecting the safety of the contact 33, the first power terminal 31, and the second power terminal 32 and extending the service life of the relay core 3.

[0057] The material of the fixing member 34 can be plastic or ceramic, and this application does not impose any restrictions on this. In one embodiment of the present application, the fixing member 34 is made of ceramic. In this way, the fixing member 34 can provide stable support for the first power terminal 31 and the second power terminal 32 while shortening the arc occurrence time and protecting the safety of the contact member 33, the first power terminal 31, and the second power terminal 32.

[0058] The relay core also includes an arc extinguishing hood 320, which is arranged on the outer periphery of the fixing member. When an arc is generated between the contact member 33 and the first power terminal 31 and the second power terminal 32, the arc extinguishing hood 320 can separate the arc from the contact and use the diffusion effect of the arc in the arc extinguishing hood 320 to quickly extinguish the arc. The arc extinguishing hood 320 will generate a large amount of heat during the arc extinguishing process. In order to reduce the accumulation of heat on the arc extinguishing hood 320 and the impact on the arc extinguishing hood 320, in one embodiment of the present application, the potting glue 2 is wrapped around the arc extinguishing hood 320 and is in direct contact with the arc extinguishing hood 320. In this way, the contact area between the potting glue 2 and the arc extinguishing hood 320 is increased, the heat conduction effect of the potting glue 2 on the arc extinguishing hood 320 is increased, the heat dissipation effect of the arc extinguishing hood 320 is improved, the impact of heat on the arc extinguishing hood 320 is reduced, and the working stability of the arc extinguishing hood 320 is improved.

[0059] The relay core 3 also includes a drive assembly 38 and a sealing cover 37. The sealing cover 37 covers the opening of the cavity 341. This isolates the contact 33 within the cavity 341 from the outside air, thereby reducing the effects of moisture and impurities in the outside air on the contact between the contact 33 and the first and second terminals. The sealing cover 37 also defines a third through-hole 371 for the drive assembly 38 to pass through.

[0060] The drive assembly 38 is used to drive the contact member 33 to move. The drive assembly 38 can be a motor or a cylinder, and this application does not impose any restrictions on this. The drive assembly 38 includes a mounting frame 381, a stator 382, ​​and a mover 383. The mounting frame 381 serves as the support framework of the drive assembly 38 and is used to support and connect the various parts of the support assembly. The stator is arranged on the mounting frame 381 and is used to generate a magnetic field, thereby driving the mover 383 to move upward. The mover 383 is at least partially mounted within the stator 382 and is used to drive the contact member 33 to move toward or away from the first power terminal 31 and the second power terminal 32. Specifically, the stator 382 includes a stator core 3822 and a coil 3821. The stator core 3822 is used to provide support for the arrangement of the coil 3821, and the coil 3821 is wound around the stator core 3822. Coil 3821 is connected to an external power source and converts its electrical energy into magnetic energy, thereby attracting the mover 383 to move upward. The mover 383 is nestled within the stator 382 and comprises a body 3831 and a connecting shaft 3832. The body 3831 is located on the side of the stator core 3822 facing away from the first and second power terminals 31 and 32. One end of the connecting shaft 3832 is connected to the body 3831, while the other end passes through the third through-hole 371, the stator core 3822, and the third through-hole 371, respectively, to connect with the contact member 33. To maintain the sealing of the cavity 341, the connecting shaft 3832 and the third through-hole 371 are sealed. The main body 3831 of the mover 383 is made of magnetic material. When the coil 3821 is energized, it generates a magnetic field at the stator core 3822, which in turn attracts the main body 3831 to move upward. This upward movement of the main body 3831 in turn drives the connecting shaft 3832 upward, which in turn drives the contact 33 upward, ultimately causing the contact 33 to contact the first and second power terminals 31, 32, completing the circuit between the first and second power terminals 31, 32. When the coil 3821 is de-energized, the magnetic field generated by the coil 3821 disappears, and the mover 383 falls downward under the action of gravity, separating the contact 33 from the first and second power terminals 31, 32 and disconnecting the circuit between the first and second power terminals 31, 32.

[0061] In some embodiments of the present application, the stator 382 is directly in contact with the potting compound 2, thereby increasing the contact area between the potting compound 2 and the stator 382, ​​improving the thermal conductivity of the potting compound 2 to the coil 3821, and thereby improving the heat dissipation capacity of the drive component 38 and improving the working stability of the drive component 38.

[0062] In one embodiment of the present application, the drive assembly 38 further includes a first spring 39, which is sleeved around the connecting shaft 3832. One end of the first spring 39 is connected to the stator core 3822, and the other end is connected to the body 3831 of the mover 383. When the coil 3821 is energized, the body 3831 moves upward, compressing the first spring 39. When the coil 3821 loses power, the first spring 39 is released and pushes the body 3831 downward, thereby accelerating the body 3831's descent. This allows the connector to quickly separate from the first and second power terminals 31 and 32 after the coil 3821 is de-energized, thereby improving the response speed of the relay core 3.

[0063] In one embodiment of the present application, the drive assembly 38 further includes a second spring 310, which is sleeved around the outer circumference of the connecting shaft 3832. One end of the second spring 310 is connected to the stator core 3822, and the other end is connected to the contact member 33. In this embodiment, regardless of whether the coil 3821 is energized or de-energized, and regardless of whether the contact member 33 is rising or falling, the second spring 310 is always in a compressed state. As a result, when the contact member 33 contacts the first power terminal 31 and the second power terminal 32, the second spring 310 can apply an upward thrust to the contact member 33, thereby causing the contact member 33 to press against the first power terminal 31 and the second power terminal 32, thereby improving the stability of the connection between the contact member 33 and the first power terminal 31 and the second power terminal 32.

[0064] Please refer to Figures 5 and 6. The integrated relay 1000 also includes a circuit board 5, which is electrically connected to the coil 3821. A control program is integrated into the circuit board 5. The circuit board 5 can control the on / off of the current in the coil 3821 through the setting of program control, thereby controlling the on / off of the current at both ends of the relay core 3. There are many ways to connect the circuit board 5 and the coil 3821. In some embodiments of the present application, a wiring harness interface is provided on the outside of the relay core 3, and the coil 3821 is electrically connected to the wiring harness interface. The integrated relay 1000 also includes a wiring harness, one end of which is connected to the circuit board 5 and the other end extends into the terminal block, so that the coil 3821 is electrically connected to the circuit board 5.

[0065] In some other possible embodiments of the present application, the relay core 3 further includes a signal pin 4, one end of which is connected to the coil 3821 and the other end is used to connect to the circuit board 5. The signal pin 4 can be soldered to the circuit board 5 or glued to the circuit board 5 using electrical glue, and this application does not impose any restrictions on this. When the relay core 3 is connected to the circuit board 5, each relay core 3 can be equipped with a set of signal pins 4 as shown in Figure 5 to connect to the circuit board 5, or multiple relay cores 3 can be equipped with a set of signal pins 4 as shown in Figure 6 to connect to the circuit board 5, and this application does not impose any restrictions on this. The signal pin 4 of the relay core 3 can be connected to the circuit board 5 in a direction perpendicular to the relay core 3 or in a direction parallel to the relay core 3. This application does not impose any restrictions on this. In this embodiment, the signal pin 4 is connected to the circuit board 5 instead of the wiring harness interface, eliminating the use of the wiring harness and reducing the wiring cost of the coil 3821 and the circuit board 5.

[0066] Please refer to Figure 7. In order to connect the first power terminal 31 and the second power terminal 32 to the control circuit of the electrical equipment, the electrical equipment also includes a first wiring copper bus 35 and a second wiring copper bus 36. The first wiring copper bus 35 includes a first end and a second end arranged opposite to each other, the first end is connected to the first power terminal 31, and the second end is connected to the control circuit. The second wiring copper bus 36 has a third end and a fourth end arranged opposite to each other, the third end is connected to the second power terminal 32, and the fourth end is connected to the control circuit of the electrical equipment.

[0067] There are many ways to connect the first copper busbar 35 to the first power terminal 31, the second copper busbar 36, and the second power terminal 32. The first copper busbar 35 and the first power terminal 31, the second copper busbar 36, and the second power terminal 32 can be connected by screws or by bonding, and this application does not impose any restrictions on this. Considering that if the first copper busbar 35 and the first power terminal 31, the second copper busbar 36, and the second power terminal 32 are bonded, the stability of the connection between the first copper busbar 35 and the first power terminal 31, the second copper busbar 36, and the second power terminal 32 cannot be guaranteed. If the first copper busbar 35 and the first power terminal 31, the second copper busbar 36, and the second power terminal 32 are connected by screws, it is necessary to provide threaded holes with sufficient depth on the first power terminal 31 and the second power terminal 32 to ensure the stability of the connection between the first copper busbar 35 and the first power terminal 31, the second copper busbar 36, and the second power terminal 32. The provision of threaded holes will undoubtedly increase the length of the first power terminal 31 and the second power terminal 32, thereby increasing the height of the relay core 3, and affecting the space utilization rate of the relay core 3 relative to the installation cavity 11. To address the above problem, in some embodiments of the present application, the first end of the first wiring copper busbar 35 is welded to the first power terminal 31, and the third end of the second wiring copper busbar 36 is welded to the second power terminal 32. Since they are no longer connected by threads, the first power terminal 31 and the second power terminal 32 no longer need to reserve thread length. In this way, the length of the first power terminal 31 and the second power terminal 32 is reduced, thereby reducing the length of the relay core 3 and improving the space utilization rate of the relay core 3 relative to the electrical equipment.

[0068] In some embodiments of the present application, the first power terminal 31 and the second power terminal 32 are arranged at the opening of the shell 1, and the opening is sealed by the potting glue 2, so as to prevent external moisture or dust from entering the installation cavity 11 through the opening and affecting the normal use of the relay core 3.

[0069] The first power terminal 31 and the second power terminal 32 can be either enclosed within the potting compound 2 or exposed outside the potting compound 2, and this application does not impose any restrictions on this. Specifically, in some embodiments of the present application, the first power terminal 31 and the second power terminal 32 protrude from the housing 1 through the opening. In this way, the first power terminal 31 and the second power terminal 32 can be exposed outside the potting compound 2, thereby facilitating the connection between the first power terminal 31 and the first copper busbar 35 or the second power terminal 32 and the second copper busbar 36.

[0070] In other embodiments of the present application, the first power terminal 31 and the first copper busbar 35, as well as the second power terminal 32 and the second copper busbar 36, can be first connected to each other and then encapsulated in the mounting cavity 11 by the potting compound 2. Specifically, in this embodiment, the first end of the first copper busbar 35 is connected to the first power terminal 31, and the second copper busbar 36 is connected to the second power terminal 32 by welding. The first end and the first power terminal 31, and the third end and the second power terminal 32 are all covered by the potting compound 2. In this way, the stability of the connection between the first power terminal 31 and the first copper busbar 35, and the second power terminal 32 and the second copper busbar 36 is improved.

[0071] It can be understood that in other possible implementations of the present application, the first end of the first wiring copper bus 35 and the first power terminal 31 may be covered by the potting glue 2, and the second power terminal 32 and the second wiring copper bus 36 may be exposed outside the potting glue 2, or the third end of the second wiring copper bus 36 and the second power terminal 32 may be covered by the potting glue 2, and the first end of the first wiring copper bus 35 and the first power terminal 31 may be exposed outside the potting glue 2. The present application does not impose any restrictions on this.

[0072] In the description of the embodiments of the present application, it should be noted that the orientation or positional relationship of terms such as "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", and "outside" are based on the orientation or positional relationship described in the accompanying drawings. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present application.

[0073] The above disclosure is only a preferred embodiment of the present application, and certainly cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made in accordance with the claims of the present application are still within the scope covered by the present application.

Claims

1. An integrated relay (1000), comprising: A housing (1), the housing (1) being a single piece and having a mounting cavity (11); A plurality of relay cores (3) are provided, the plurality of relay cores (3) being spaced apart from each other and being collectively encapsulated in the installation cavity (11).

2. The integrated relay (1000) according to claim 1, wherein: The integrated relay (1000) further comprises a potting compound (2), wherein the potting compound (2) is filled in the mounting cavity (11) to fix the plurality of relay cores (3).

3. The integrated relay (1000) according to claim 2, wherein: The potting glue (2) is provided between two adjacent relay core bodies (3).

4. The integrated relay (1000) according to claim 1, wherein: Each relay core (3) comprises a first power terminal (31), a second power terminal (32) and a contact member (33), wherein the contact member (33) is used to electrically connect or disconnect the first power terminal (31) and the second power terminal (32).

5. The integrated relay (1000) according to claim 4, wherein: The integrated relay (1000) further comprises a potting compound (2), wherein the potting compound (2) is filled in the mounting cavity (11) to fix the plurality of relay cores (3); The first power terminal (31) and the second power terminal (32) are partially covered by the potting glue (2), and / or the second power terminal (32) is partially covered by the potting glue (2).

6. The integrated relay (1000) according to claim 5, wherein: The housing (1) has an opening, the opening is communicated with the installation cavity (11), the first power terminal (31) and the second power terminal (32) are located in the opening, and the opening is sealed by the potting glue (2).

7. The integrated relay (1000) according to claim 6, wherein: The first power terminal (31) and the second power terminal (32) protrude from the housing (1) through the opening.

8. The integrated relay (1000) according to claim 4, wherein: The relay core (3) further comprises a fixing member (34), and the first power terminal (31) and the second power terminal (32) are fixed to the fixing member (34).

9. The integrated relay (1000) according to claim 8, wherein: The integrated relay (1000) further comprises a potting compound (2), wherein the potting compound (2) is filled in the mounting cavity (11) to fix the plurality of relay cores (3); The relay core (3) further comprises an arc extinguishing cover (320), the arc extinguishing cover (320) being arranged on the outer periphery of the fixing member (34), and the arc extinguishing cover (320) being in direct contact with the potting glue (2).

10. The integrated relay (1000) according to claim 4, wherein: The relay core (3) further comprises a driving assembly (38), wherein the driving assembly (38) is used to drive the contact member (33) to move, and the driving assembly (38) comprises: A stator (382), the stator (382) comprising a stator core (3822) and a coil (3821) disposed on the stator core (3822); and A mover (383), wherein the mover (383) is at least partially sleeved in the stator (382), and one end of the mover (383) is connected to the contact member (33) to drive the contact member (33) to move, thereby electrically connecting or disconnecting the first power terminal (31) and the second power terminal (32).

11. The integrated relay (1000) according to claim 10, wherein: The integrated relay (1000) further comprises a potting compound (2), wherein the potting compound (2) is filled in the mounting cavity (11) to fix the plurality of relay cores (3); The stator (382) is directly in contact with and connected to the potting compound (2).

12. The integrated relay (1000) according to claim 10, wherein: The relay core (3) further comprises a signal pin (4), one end of which is connected to the coil (3821), and the other end of which is suitable for being connected to a circuit board (5).

13. An electrical device (2000), comprising the integrated relay (1000) according to any one of claims 1 to 12.

14. The electrical device (2000) according to claim 13, wherein: The electrical device (2000) further comprises a first copper busbar (35) and a second copper busbar (36); The first copper busbar (35) comprises a first end and a second end that are arranged opposite to each other, the first end being welded to the first power terminal (31), and the second end being used for connecting to a control circuit; and / or, The second copper busbar (36) comprises a third end and a fourth end that are arranged opposite to each other, the third end is welded to the second power terminal (32), and the fourth end is used to be connected to a control circuit.

15. The electrical device (2000) according to claim 13, wherein The integrated relay (1000) further comprises a potting compound (2), wherein the potting compound (2) is filled in the mounting cavity (11) to fix the plurality of relay cores (3); the electrical device (2000) further comprises a first copper busbar (35) and a second copper busbar (36); The first copper busbar (35) has a first end, the first end is connected to the first power terminal (31), and the first end and the first power terminal (31) are both covered by the potting compound (2); and / or, The second copper busbar (36) has a third end, the third end is connected to the second power terminal (32), and the third end and the second power terminal (32) are both covered by the potting glue (2).

16. A vehicle (200) comprising the electrical device (2000) according to any one of claims 13 to 15.

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