Relay, power distribution box, battery device, and electrical apparatus

Abstract

The present application relates to the technical field of batteries and specifically to a relay, a power distribution box, a battery device, and an electrical apparatus. The relay comprises an insulating support and conductive members; the conductive members include a first conductive member and a second conductive member that are embedded in the insulating support; the first conductive member and the second conductive member respectively comprise a first terminal and a second terminal that are exposed on the surface of the insulating support; the first terminal and the second terminal respectively have a first connection surface and a second connection surface; the first connection surface and the second connection surface are used for being in contact with and electrically connected to an external electrical connection structure. In this way, the first connection surface and the second connection surface are in direct contact with the external electrical connection structure to implement an electrical connection, and there is no need to use an intermediate connection member for connection, thereby being conducive to improving the assembly efficiency and the assembly reliability. In addition, the intermediate connection member is omitted, so that the structure is simplified, assembly operations can be reduced, and the cost can be reduced.

Description

Relay, power distribution box, battery device and electrical equipment

[0001] The present application refers to the Chinese Patent Application No. 202410844440.9 entitled "Power distribution box, battery and electrical equipment" filed on June 27, 2024, the entire contents of which are incorporated herein by reference. TECHNICAL FIELD

[0002] The present application belongs to the technical field of battery, and in particular relates to a relay, a power distribution box, a battery device and electrical equipment. BACKGROUND

[0003] With the development of science and technology, new energy electric vehicles have begun to gradually popularize. As one of the core components of electric vehicles, the battery device is the energy center of electric vehicles. For electric vehicles, battery technology is an important factor for their development.

[0004] The battery device is configured with a power distribution box, and the assembly efficiency of the internal components of the power distribution box directly affects the overall assembly efficiency of the battery device.

[0005] The above statements are only used to provide background technical information related to the present application, and do not necessarily constitute the prior art. SUMMARY

[0006] The purpose of the embodiments of the present application is to provide a relay, a power distribution box, a battery device and electrical equipment to improve the assembly efficiency of the power distribution box.

[0007] The technical solution adopted by the embodiments of the present application is:

[0008] In a first aspect, a relay is provided, comprising:

[0009] An insulating support;

[0010] An electrical component mounted on the insulating support; and

[0011] A conductive component, the conductive component comprising a first conductive component and a second conductive component, the first conductive component and the second conductive component being respectively embedded in the insulating support and electrically connected to the electrical component, the first conductive component comprising a first terminal exposed to the surface of the insulating support, the second conductive component comprising a second terminal exposed to the surface of the insulating support and spaced apart from the first terminal; wherein

[0012] The first terminal has a first connecting surface, and the second terminal has a second connecting surface, the first connecting surface and the second connecting surface being used to mutually contact and electrically connect with an external electrical connection structure, so as to connect the first conductive component and the second conductive component with an external control circuit.

[0013] By adopting the technical solutions of the embodiments of the present application, the first conductive part has a first terminal exposed to the outer surface of the insulating support, the second conductive part has a second terminal exposed to the outer surface of the insulating support, the first terminal has a first connecting surface, the second terminal has a second connecting surface, the first conductive part and the second conductive part can be in contact with each other and electrically connected to the external electrical connection structure through the first connecting surface and the second connecting surface, thereby realizing the electrical connection between the external control circuit and the internal electrical part of the relay, establishing a reliable current path between the relay and the external control circuit, and realizing power and signal transmission. Moreover, the first terminal and the second terminal are directly in contact with each other and electrically connected to the external electrical connection structure, without the need for an intermediate connecting component for switching, which can effectively solve the assembly problem caused by the need to insert the first terminal and the second terminal into the intermediate connecting component and insert the connecting part of the external electrical connection structure into the intermediate connecting component, and there is almost no risk of connection instability or failure caused by deformation or damage of the connecting structure, which is beneficial to improve the assembly efficiency and the assembly reliability. In addition, the omission of the intermediate connecting component can also simplify the structure, reduce the assembly operation, and reduce the cost.

[0014] In some embodiments, the first connecting surface and the second connecting surface are both planes.

[0015] By adopting the technical solutions of the embodiments, the first connecting surface and the second connecting surface are both planes, which can provide a larger contact area, so that a larger electrical contact area can be obtained when in contact with the corresponding electrical connection structure, thereby improving the stability and reliability of electrical connection.

[0016] In some embodiments, the first connecting surface is the largest surface among the exposed surfaces of the first terminal, and the second connecting surface is the largest surface among the exposed surfaces of the second terminal.

[0017] By adopting the technical solutions of the embodiments, the largest surface among the surfaces of the first terminal exposed to the surface of the insulating support is used as the first connecting surface, and the largest surface among the surfaces of the second terminal exposed to the surface of the insulating support is used as the second connecting surface, so that the first terminal and the second terminal can provide a larger electrical contact area as much as possible, thereby improving the stability and reliability of electrical connection.

[0018] In some embodiments, the electrical gap between the first terminal and the second terminal is greater than 3 mm, or the creepage distance between the first terminal and the second terminal is greater than 3 mm.

[0019] By adopting the technical solutions of the embodiments, the electrical gap between the first terminal and the second terminal is greater than 3 mm, thereby meeting the requirements of electrical safety.

[0020] In some embodiments, the insulating support is further provided with a partition at a position between the first terminal and the second terminal, and the first terminal and the second terminal are electrically isolated by the partition to meet the requirement of electrical safety.

[0021] By adopting the technical scheme of the embodiment, the creepage distance between the first terminal and the second terminal is greater than 3 mm, so as to meet the requirement of electrical safety.

[0022] In some embodiments, the relay further comprises a yoke provided with a receiving cavity, and a part of the insulating support is mounted in the receiving cavity of the yoke, and the first terminal and the second terminal are located outside the receiving cavity.

[0023] By adopting the technical scheme of the embodiment, the first terminal and the second terminal are located in the external space of the receiving cavity of the yoke, so that the first terminal and the second terminal can protrude relative to the yoke and be connected with the external electrical connection structure, and the first terminal, the second terminal and the yoke do not interfere with each other.

[0024] In some embodiments, the yoke comprises a first plate body and two second plate bodies bent and connected to opposite ends of the first plate body, and the first plate body and the two second plate bodies surround to form the receiving cavity, and the first terminal and the second terminal protrude from a surface of the first plate body away from the receiving cavity, or the first terminal and the second terminal protrude from a surface of the second plate body away from the receiving cavity.

[0025] In some embodiments, the electrical component comprises a coil, the insulating support comprises a winding portion and a first end wall, the coil is wound on the winding portion, and in the first direction, the first end wall is connected to one end of the winding portion on one side of the winding portion, the winding portion and the first end wall are located in the receiving cavity, the first conductive part and the second conductive part are embedded in the first end wall, the first terminal and the second terminal protrude from the first end wall, and the first direction is the axial direction of the winding portion.

[0026] By adopting the technical scheme of the embodiment, the insulating support has the winding portion and the first end wall, the winding portion provides a winding space for the coil, the first conductive part and the second conductive part are embedded in the first end wall, the first end wall provides a mounting position for the first conductive part and the second conductive part, and the first end wall is located on one side of the winding portion, so that the first conductive part and the second conductive part do not affect the arrangement of the coil, and in addition, the first terminal and the second terminal protrude from the first end wall to the outside of the receiving cavity, and the first terminal and the second terminal also do not affect the arrangement of the coil.

[0027] In some embodiments, the first end wall has a first surface facing the winding portion, and in the first direction, neither the first terminal nor the second terminal exceeds the first surface.

[0028] By adopting the technical scheme of the embodiment, in space, the first surface faces the winding part, and the first terminal and the second terminal are all located on the side of the first end wall away from the winding part, so that the first terminal and the second terminal do not interfere with the winding of the coil in space at all.

[0029] In some embodiments, the first end wall further has a second surface arranged away from the winding part along a first direction, and the first terminal and the second terminal protrude from the second surface along a direction parallel to or intersecting the first direction.

[0030] By adopting the technical scheme of the embodiment, the first end wall further has a second surface away from the winding part, and the first terminal and the second terminal are arranged to protrude from the second surface, the second surface is a surface in the front-rear direction of the coil, and the first terminal and the second terminal are led out from the surface of the insulating support in the front space or the rear space of the coil.

[0031] In some embodiments, the insulating support further comprises a first supporting part, the first supporting part is located outside the cavity and connected to the first end wall, and the first terminal and the second terminal are arranged in the first supporting part.

[0032] By adopting the technical scheme of the embodiment, by arranging the first supporting part, the first terminal and the second terminal can be supported, and the risk of affecting the stability of the electrical connection due to the suspension of the first terminal and the second terminal is reduced.

[0033] In some embodiments, the first supporting part is connected to an edge part of the first end wall.

[0034] By adopting the technical scheme of the embodiment, the first supporting part is connected to the first end wall, the first supporting part can be part of the structure of the insulating support, the first supporting part is arranged at the edge position of the first end wall, and the first terminal and the second terminal can be arranged at the edge position of the first end wall.

[0035] In some embodiments, along the first direction, the first supporting part does not exceed the first surface.

[0036] By adopting the technical scheme of the embodiment, in space, the first supporting part is arranged away from the winding part, and the first supporting part is all located on the side of the first end wall away from the winding part, so that the first supporting part does not interfere with the winding of the coil in space at all.

[0037] In some embodiments, the first supporting part protrudes the first end wall along a direction perpendicular to the first direction, and the first terminal and the second terminal are arranged to protrude from the first supporting part.

[0038] In some embodiments, the first supporting part protrudes the first end wall along a direction perpendicular to the first direction, and the first terminal and the second terminal protrude the first supporting part from the side of the first supporting part away from the winding part along the first direction.

[0039] In some embodiments, the first supporting portion protrudes the first end wall in a direction perpendicular to the first direction, and the first terminal and the second terminal extend from the first supporting portion in the first direction.

[0040] In some embodiments, the first supporting portion protrudes the first end wall in the first direction, and the first terminal and the second terminal extend from the first supporting portion in a direction perpendicular to the first direction and away from the side of the winding portion.

[0041] In some embodiments, the first supporting portion comprises a first wall, and the first terminal and the second terminal are attached to the first wall, and the first connecting surface and the second connecting surface protrude from the first wall in a direction perpendicular to the first direction.

[0042] By adopting the technical solutions of the embodiments, the first wall supports the first terminal and the second terminal, and the first connecting surface and the second connecting surface protrude from the first wall, so that the first wall does not interfere with the effective contact between the first connecting surface and the second connecting surface and the external electrical connection structure, thereby enabling the first connecting surface and the second connecting surface to fully serve as electrical contact surfaces to electrically contact the external structure.

[0043] In some embodiments, the first terminal is further provided with a first threaded structure, and the first threaded structure penetrates the first connecting surface in a direction perpendicular to the first connecting surface.

[0044] And / or, the second terminal is further provided with a first threaded structure, and the first threaded structure penetrates the second connecting surface in a direction perpendicular to the second connecting surface.

[0045] By adopting the technical solutions of the embodiments, the first threaded structure is provided on the first terminal and the second terminal, and the two terminals can cooperate with the threaded structure on the external electrical connection structure through the respective first threaded structures, thereby enabling the first terminal and the second terminal to be threadedly connected with the external electrical connection structure, and the connection structure is simple, and the threaded connection structure can also provide sufficient connection force to enable the first connecting surface and the second connecting surface to be in close contact with the corresponding external electrical connection structure, thereby establishing a reliable and stable electrical connection.

[0046] In some embodiments, the first threaded structure is a nut, the first terminal is further provided with a first connecting hole penetrating the first connecting surface, the second terminal is further provided with a first connecting hole penetrating the second connecting surface, and at least part of the nut is embedded in the corresponding first connecting hole.

[0047] By adopting the technical solutions of the embodiments, the first threaded structure is a nut, the first terminal and the second terminal are respectively provided with a first connecting hole, and the nut is embedded in the first connecting hole, thereby enabling the nut to be fixed to the first terminal and the second terminal, and then cooperating the nut with the threaded fastener such as a bolt or a screw outside to lock and connect the first terminal, the second terminal and the external electrical connection structure.

[0048] In some embodiments, the first wall corresponding to the position of the first connecting hole is further provided with a first through hole communicating with the first connecting hole, the first through hole is coaxial with the first connecting hole, part of the first threaded structure is embedded in the first connecting hole, and another part of the first threaded structure is embedded in the first through hole.

[0049] By adopting the technical scheme of the embodiment, part of the first threaded structure is embedded in the first wall, and the first wall can also provide positioning and support for the first threaded structure, so that the first threaded structure can better maintain firm connection with the corresponding first terminal and second terminal, and stable connection with the external electrical connection structure is ensured.

[0050] In some embodiments, the extension line of the central axis of the first connecting hole does not interfere with the yoke.

[0051] By adopting the technical scheme of the embodiment, the installation of the first threaded structure and the cooperative connection of the first threaded structure with the external threaded structure do not interfere with the yoke, and do not affect the realization of the structures and functions of each other.

[0052] In some embodiments, the insulating support includes two first supporting portions arranged at intervals, the first terminal is arranged in one of the first supporting portions, and the second terminal is arranged in the other first supporting portion.

[0053] By adopting the technical scheme of the embodiment, the first terminal and the second terminal are supported by the respective independent first supporting portions, are structurally distinguished from each other, and the insulation requirement between the first terminal and the second terminal can be better ensured.

[0054] In some embodiments, the first supporting portion is provided with a first accommodating hole corresponding to the position of the first connecting hole, the first accommodating hole communicates with the first connecting hole, and the first accommodating hole is used to accommodate the part of the fastener that passes out of the first connecting hole.

[0055] By adopting the technical scheme of the embodiment, when the first terminal and the second terminal are cooperatively connected with the external electrical connection structure by using the fastener, the part of the fastener that passes out of the first connecting hole can be accommodated in the internal space of the first supporting portion, and the part of the fastener is not exposed relative to the insulating support, so that the insulation performance between the fastener and the adjacent electrical component can be better improved, and the risk of electrical connection error caused by the protrusion of the fastener is reduced.

[0056] In some embodiments, the first accommodating hole penetrates through the side of the first supporting portion away from the first end wall.

[0057] By adopting the technical scheme of the embodiment, the first accommodating hole penetrates the first supporting portion in a direction intersecting the axial direction of the first connecting hole, so that the first accommodating hole can be kept in communication with the outside, facilitating the taking out of the component after injection molding, and the first accommodating hole can also be used for observing or operating the connecting operation of the fastener by personnel or tools.

[0058] In some embodiments, the first supporting portion includes a first wall, the first terminal and the second terminal are attached to the first wall, the first connecting surface and the second connecting surface protrude from the first wall in the axial direction of the first connecting hole, and the first wall is provided with a first through hole communicating the first connecting hole and the first accommodating hole.

[0059] By adopting the technical scheme of the embodiment, the first supporting portion includes a first wall, the first terminal and the second terminal are attached to the first wall, the first wall is provided with a first through hole to communicate the first connecting hole and the first accommodating hole, so that the end portion of the fastener sequentially passes through the first connecting hole and the first through hole and then extends into the first accommodating hole.

[0060] In some embodiments, at least one of the first through hole and the first connecting hole is provided with a first threaded structure, the first threaded structure has a first threaded hole penetrating the first connecting hole, and the first threaded hole has an internal thread adapted to an external thread of the fastener.

[0061] By adopting the technical scheme of the embodiment, the first terminal and the second terminal are respectively provided with a first threaded structure, the first threaded structure has a first threaded hole capable of cooperating with the fastener such as a bolt or a screw outside, so that the first terminal and the second terminal can be locked with the external electrical connection structure through the fastener with threads.

[0062] In some embodiments, along the axial direction of the first connecting hole, part of the first threaded structure is embedded in the first connecting hole, and another part of the first threaded structure is embedded in the corresponding first through hole.

[0063] By adopting the technical scheme of the embodiment, part of the first threaded structure is embedded in the first wall, and the first wall can also provide positioning and support for the first threaded structure, so that the first threaded structure can be better connected with the corresponding first terminal and second terminal, and the stable connection with the external electrical connection structure is ensured.

[0064] In some embodiments, the first threaded structure is a nut for adapting and connecting an M3 bolt.

[0065] In some embodiments, the first supporting portion further includes a second wall protruding from the second surface in the first direction, the second wall is located on the side of the first wall facing the winding portion in the axial direction of the first connecting hole, the first wall and the second wall are arranged in a spaced manner, and the first accommodating hole is located between the first wall and the second wall.

[0066] By adopting the technical scheme of the embodiment, the first supporting part comprises a first wall and a second wall which are arranged in an up-down direction along an axial direction of the first connecting hole, the first terminal and the second terminal are attached to the corresponding first wall, a part of space between the first wall and the second wall forms a first accommodating hole, the first wall is provided with a first through hole to communicate the first connecting hole and the first accommodating hole, and the end part of the fastener is sequentially inserted into the first accommodating hole after passing through the first connecting hole and the first through hole.

[0067] In some embodiments, the first supporting part further comprises two third walls which protrude from the second surface along the first direction, the two third walls are arranged in a spaced manner along a radial direction of the first connecting hole and connect the first wall and the second wall, and the first wall, the second wall, the two third walls and a part of the second surface surround to form the first accommodating hole.

[0068] By adopting the technical scheme of the embodiment, the two third walls are arranged to connect the first wall and the second wall, so that the hole bottom of the first accommodating hole is closed along the axial direction of the first connecting hole, and the first accommodating hole penetrates the external space along the radial direction of the first connecting hole. At the same time, the third wall connects the first wall and the second wall in a spaced manner, which can also improve the structural strength of the first supporting part and improve the support stability and reliability of the corresponding first terminal and second terminal.

[0069] In some embodiments, the yoke is provided with a bayonet hole penetrating the yoke along the first direction at a position corresponding to the first supporting part, the bayonet hole is in communication with the accommodating cavity, and at least part of the first supporting part is clamped in the bayonet hole.

[0070] By adopting the technical scheme of the embodiment, the yoke is provided with the bayonet hole, the bayonet hole penetrates the yoke along the first direction, that is, along the radial direction of the first connecting hole or along the thickness direction of the yoke, the bayonet hole is in communication with the internal accommodating cavity of the yoke and the external environment, and part or all of the first supporting part is clamped in the bayonet hole, so that the first supporting part protrudes from the side of the yoke away from the second surface, and the arrangement of the first supporting part, the first terminal and the second terminal does not interfere with the assembly of the yoke and the insulating support. At the same time, the arrangement of the bayonet hole can also assist in positioning the assembly between the yoke and the insulating support in cooperation with the first supporting part, improve the assembly efficiency, and improve the assembly stability.

[0071] In some embodiments, the bayonet hole penetrates the edge of the yoke along the axial direction of the first connecting hole, the first wall is arranged outside the bayonet hole and abuts against the edge of the yoke, and the third wall and the second wall are arranged in the bayonet hole.

[0072] By adopting the technical scheme of the embodiment, the bayonet hole is a notch arranged at the edge of the yoke, the bayonet hole has a simple structure and a simple forming mode, the size of the first wall of the first supporting part is larger than the size of the mouth of the bayonet hole, so that the first wall is supported on the edge of the yoke, and the second wall and the third wall are clamped in the bayonet hole.

[0073] In some embodiments, the second wall protrudes from the surface of the surface protruding part of the yoke away from the second surface by a length L1 along an axial direction of the first connecting hole, the thickness of the second wall is L2, and the minimum distance between the hole edge of the first through hole and the hole opening of the first accommodating hole is L3, wherein the sum of L1, L2 and L3 is greater than 3mm.

[0074] By adopting the technical scheme of the embodiment, when the first terminal and the second terminal are connected with the external electrical connection structure through the adapted fastener, part of the fastener is located in the first accommodating hole, and the fastener is in air contact with the yoke through the hole opening of the first accommodating hole. Thus, the spacing distance between the fastener and the yoke needs to meet the electrical requirement that the creepage distance is greater than 3mm.

[0075] In some embodiments, the first conductive member further comprises a first wiring part exposed to the surface of the insulating support, and the second conductive member further comprises a second wiring part exposed to the surface of the insulating support, the first wiring part and the second wiring part are arranged in a spaced manner and connected with opposite ends of the coil respectively.

[0076] By adopting the technical scheme of the embodiment, the first conductive member further comprises a first wiring part, and the second conductive member further comprises a second wiring part, the first wiring part and the second wiring part are both exposed to the surface of the insulating support, and the first wiring part and the second wiring part are connected with the two ends of the coil respectively, so that the coil can be connected with the external power supply through the first conductive member and the second conductive member, and the external power supply supplies power to the coil.

[0077] In some embodiments, the first wiring part and the second wiring part are arranged in a protruding manner on the first surface along a direction parallel or intersecting with the first direction and are arranged in a spaced manner with the winding part.

[0078] By adopting the technical scheme of the embodiment, the first surface of the first end wall faces the winding part, the first wiring part and the second wiring part are arranged in a protruding manner on the first surface and are arranged in a spaced manner with the winding part, so that the two wiring parts are spaced from the coil, that is, except that the two ends of the coil are connected with the first wiring part and the second wiring part respectively, other positions of the coil do not contact the two wiring parts. On this basis, the first terminal and the second terminal are located on the other side of the insulating support, the first terminal and the second terminal are located on different sides of the insulating support with the first wiring part and the second wiring part, and the first wiring part and the second wiring part face the coil. Such a layout is conducive to distinguishing the wiring part connected with the coil and the connecting terminal connected with the external electrical connection structure in space, facilitating the operation of internal connection and external connection on different surfaces of the insulating support, and also helps to isolate the internal and external electrical connections and reduce the interference of external factors on the internal connection.

[0079] In some embodiments, the first surface is concave with two recesses along the first direction, and the two recesses and the winding part form an empty space respectively, the first connecting part is protruded on one recess, and the second connecting part is protruded on the other recess, and the two ends of the coil are connected with the corresponding first connecting part or second connecting part in the corresponding empty space.

[0080] By adopting the technical scheme of the embodiment, the first surface is concave with a recess along the axial direction of the coil, and the recess is concave along the axial direction of the coil relative to other parts of the first surface, so that the recess and the winding part form an empty space structure, i.e., an empty space, and the end of the coil extends into the empty space and is connected with the corresponding first connecting part or second connecting part, so that the part of the enameled wire connected with the first connecting part and the second connecting part does not contact other positions of the coil, thereby reducing the risk of abrasion of the surface insulation paint layer of the coil due to contact and friction between the end of the coil and other parts of the coil after the end of the coil is drawn out.

[0081] In some embodiments, the first connecting part and the second connecting part are further respectively provided with a plurality of clamping grooves, and the coil is wrapped around the corresponding first connecting part or second connecting part at the position between the clamping grooves and the surface of the insulation support, or at least part of the coil wrapped around the first connecting part or second connecting part is clamped into the corresponding clamping groove.

[0082] By adopting the technical scheme of the embodiment, the clamping groove can stop the wire body from falling off, so that the wire body can be reliably wrapped around the first connecting part or the second connecting part.

[0083] In some embodiments, the first conductive part further comprises a first intermediate connecting part, the first intermediate connecting part is embedded in the inside of the first end wall, the first terminal is connected to one end of the first intermediate connecting part, and the first connecting part is connected to the other end of the first intermediate connecting part.

[0084] The second conductive part further comprises a second intermediate connecting part, the second intermediate connecting part is embedded in the inside of the first end wall, the second terminal is connected to one end of the second intermediate connecting part, and the second connecting part is connected to the other end of the second intermediate connecting part.

[0085] By adopting the technical scheme of the embodiment, the first intermediate connecting part in the first conductive part is embedded in the interior of the insulating support, and the second intermediate connecting part in the second conductive part is embedded in the interior of the insulating support, so that the first conductive part and the second conductive part can be stably and firmly connected to the insulating support through the respective intermediate connecting parts, so that the first conductive part and the second conductive part cannot be displaced relative to the insulating support, and the first terminal is connected to one end of the first intermediate connecting part, the second terminal is connected to one end of the second intermediate connecting part, the first conductive part and the second conductive part penetrate the insulating support, and from the spatial structure, the first conductive part and the second conductive part are inserted into the insulating support, and the end part is drawn out from the insulating support as a connecting part for electrical connection with the outside structure, so that the internal current of the relay can be stably and reliably transmitted through the first conductive part and the second conductive part, and the intermediate connecting part is embedded in the interior of the insulating support, so that it is isolated from the surrounding conductive parts or other possible conductive parts, thereby also reducing the risk of electrical failure of the entire system.

[0086] In some embodiments, the first terminal and the first wiring part are integrally and foldably connected with the first intermediate connecting part respectively, and the second terminal and the second wiring part are integrally and foldably connected with the second intermediate connecting part respectively.

[0087] By adopting the technical scheme of the embodiment, the first terminal and the second terminal are integrally and foldably connected with the first intermediate connecting part and the second intermediate connecting part respectively, so that during processing and manufacturing, no additional parts are needed, and the first terminal and the second terminal can be directly formed by folding the corresponding intermediate connecting parts, which helps to reduce the manufacturing cost while ensuring reliable installation and connection.

[0088] In some embodiments, the relay further comprises a main body part connected to the insulating support, the electric part further comprises a first contact and a second contact arranged on the main body part, the conductive part further comprises a third conductive part electrically connected with the first contact and a fourth conductive part electrically connected with the second contact, the third conductive part comprises a third terminal exposed on the surface of the insulating support, and the fourth conductive part comprises a fourth terminal exposed on the surface of the insulating support and spaced apart from the third terminal; wherein

[0089] The third terminal has a third connecting surface, and the fourth terminal has a fourth connecting surface, the third connecting surface and the fourth connecting surface are used to be in contact with and electrically connected with an external electrical connection structure, so as to make the third conductive part and the fourth conductive part connected with an external control circuit.

[0090] By adopting the technical scheme of the embodiment, the first contact and the second contact are connected to the third conductive member and the fourth conductive member, and the third terminal arranged on the third conductive member and the fourth terminal arranged on the fourth conductive member are exposed to the insulating support, and the third terminal and the fourth terminal are in contact with each other and are electrically connected to the external electrical connection structure, and the first contact and the second contact can also be electrically connected to the external electrical connection structure by direct contact, without the need of using an intermediate connecting component for connection, and the connection mode and operation are simpler, and the connection reliability and stability are better.

[0091] In some embodiments, the third connecting surface and the fourth connecting surface are both planes.

[0092] By adopting the technical scheme of the embodiment, the third connecting surface and the fourth connecting surface are both planes, which can provide a larger contact area, so that a larger electrical contact area can be obtained when the corresponding electrical connection structure is in contact, thereby improving the stability and reliability of electrical connection.

[0093] In some embodiments, the third connecting surface is the largest surface among the exposed surfaces of the third terminal, and the fourth connecting surface is the largest surface among the exposed surfaces of the fourth terminal.

[0094] By adopting the technical scheme of the embodiment, the largest surface among the surfaces of the third terminal exposed to the surface of the insulating support is used as the third connecting surface, and the largest surface among the surfaces of the fourth terminal exposed to the surface of the insulating support is used as the fourth connecting surface, so that the third terminal and the fourth terminal can provide a larger electrical contact area as much as possible, thereby improving the stability and reliability of electrical connection.

[0095] In some embodiments, the electrical gap between the third terminal and the fourth terminal is greater than 3 mm.

[0096] By adopting the technical scheme of the embodiment, the electrical gap between the third terminal and the fourth terminal is greater than 3 mm, so as to meet the requirement of electrical safety.

[0097] In some embodiments, the insulating support further comprises a second end wall, which is connected to the other end of the winding portion on the other side of the winding portion along the first direction, the second end wall is located in the cavity, the coil is arranged between the first end wall and the second end wall, the third conductive member and the fourth conductive member are embedded in the second end wall, and the third terminal and the fourth terminal protrude from the second end wall.

[0098] By adopting the technical scheme of the embodiment, the third conductive part and the fourth conductive part are embedded in the second end wall, the second end wall provides a mounting position for the third conductive part and the fourth conductive part, and the second end wall is located at the other side of the winding part opposite to the first end wall, so that the third conductive part and the fourth conductive part do not affect the arrangement of the coil, and in addition, the third terminal and the fourth terminal protrude from the first end wall to the outside of the cavity, and the third terminal and the fourth terminal also do not affect the arrangement of the coil.

[0099] In some embodiments, the second end wall has a third surface facing the winding part, and in the first direction, neither the third terminal nor the fourth terminal exceeds the third surface. By adopting the technical scheme of the embodiment, in space, the third surface faces the winding part, and the third terminal and the fourth terminal are all located on the side of the second end wall away from the winding part, so that the third terminal and the fourth terminal do not interfere with the winding of the coil in space at all.

[0100] In some embodiments, the second end wall further has a fourth surface arranged away from the winding part in the first direction, and the third terminal and the fourth terminal protrude from the fourth surface in a direction parallel or intersecting the first direction.

[0101] By adopting the technical scheme of the embodiment, the second end wall further has a second surface away from the winding part, and the third terminal and the fourth terminal are protrudingly arranged on the third surface, the third surface is a surface in the front-rear direction of the coil, and the third terminal and the fourth terminal are led out from the surface of the insulating support in the front space or the rear space of the coil.

[0102] In some embodiments, the insulating support further includes a second supporting part, the second supporting part is located outside the cavity and connected to the second end wall, and the third terminal and the fourth terminal are arranged on the second supporting part.

[0103] By adopting the technical scheme of the embodiment, by arranging the second supporting part, the third terminal and the fourth terminal can be supported, and the risk of affecting the stability of the electrical connection due to the suspension of the third terminal and the fourth terminal is reduced.

[0104] In some embodiments, the second supporting part is connected to an edge part of the second end wall.

[0105] By adopting the technical scheme of the embodiment, the second supporting part is connected to the second end wall, the second supporting part can be a part of the structure of the insulating support, the second supporting part is arranged at the edge position of the second end wall, and the third terminal and the fourth terminal can be arranged at the edge position of the second end wall correspondingly.

[0106] In some embodiments, in the first direction, the second supporting part does not exceed the third surface.

[0107] By adopting the technical scheme of the embodiment, in space, the second supporting part is arranged away from the winding part, and the second supporting part is entirely located on the side of the second end wall away from the winding part, so that the second supporting part does not interfere with the winding of the coil in space.

[0108] In some embodiments, the second supporting part protrudes from the second end wall along a first direction, and the third terminal and the fourth terminal extend from the side of the second supporting part away from the winding part along a direction perpendicular to the first direction.

[0109] In some embodiments, the third terminal is further provided with a second connecting hole penetrating through the third connecting surface, and the fourth terminal is further provided with a second connecting hole penetrating through the fourth connecting surface, the second connecting hole is used for adaptive connection with the fastener, and the third terminal and the fourth terminal are locked and connected with the adaptive fastener through the second connecting hole.

[0110] By adopting the technical scheme of the embodiment, the third terminal and the fourth terminal are respectively provided with the second connecting hole, the third terminal and the fourth terminal are matched with the fastener through the second connecting hole to adaptively lock and connect with the external electric connection structure, the connection structure is simple, and meanwhile the fastener can provide sufficient connection force to keep the third connecting surface and the fourth connecting surface in close contact with the corresponding external electric connection structure, so as to establish reliable and stable electric connection.

[0111] In some embodiments, the extension line of the central axis of the second connecting hole does not interfere with the main body part.

[0112] By adopting the technical scheme of the embodiment, when the fastener is connected to the second connecting hole, the fastener does not interfere with the main body part, and the structures and functions of each other are not affected.

[0113] In some embodiments, the second supporting part is provided with a second accommodating hole corresponding to the position of the second connecting hole, the second accommodating hole is communicated with the second connecting hole, and the second accommodating hole is used for adaptively accommodating the part of the fastener passing out of the second connecting hole.

[0114] By adopting the technical scheme of the embodiment, when the third terminal and the fourth terminal are locked and connected with the external electric connection structure by using the fastener, the part of the fastener passing out of the second connecting hole can be accommodated in the internal space of the second supporting part, and the part of the fastener is not exposed relative to the insulating support, so that the insulation performance between the fastener and the adjacent electric element can be better improved, and the risk of electric connection error caused by the protrusion of the fastener is reduced.

[0115] In some embodiments, the second accommodating hole penetrates through the side of the second supporting part away from the second end wall.

[0116] By adopting the technical scheme of the embodiment, the second accommodating hole penetrates the second supporting portion in a direction intersecting the axial direction of the second connecting hole, so that the second accommodating hole can be kept in communication with the outside, facilitating the taking out of the component after injection molding, and the second accommodating hole can also be used for observing or operating the connecting operation of the fastener by personnel or tools.

[0117] In some embodiments, the second supporting portion includes a fourth wall, the third terminal and the fourth terminal are attached to the fourth wall, the third connecting surface and the fourth connecting surface protrude from the fourth wall in the axial direction of the second connecting hole, and the fourth wall is provided with a second through hole communicating the second connecting hole and the second accommodating hole.

[0118] By adopting the technical scheme of the embodiment, the second supporting portion includes a fourth wall, the third terminal and the fourth terminal are attached to the fourth wall, the third connecting surface and the fourth connecting surface protrude from the fourth wall in the axial direction of the second connecting hole, and the fourth wall is provided with a second through hole communicating the second connecting hole and the second accommodating hole.

[0119] In some embodiments, at least one of the second through hole and the second connecting hole is provided with a second threaded structure, and the second threaded structure has a second threaded hole penetrating the second connecting hole, and the second threaded hole has an internal thread adapted to an external thread of the fastener.

[0120] By adopting the technical scheme of the embodiment, the third terminal and the fourth terminal are respectively provided with the second threaded structure, and the second threaded structure has the second threaded hole capable of cooperating with the fastener such as a bolt or a screw outside, so that the third terminal and the fourth terminal can be locked with the external electrical connection structure through the fastener with threads.

[0121] In some embodiments, along the axial direction of the second connecting hole, part of the second threaded structure is embedded in the second connecting hole, and another part of the second threaded structure is embedded in the corresponding second through hole.

[0122] By adopting the technical scheme of the embodiment, part of the second threaded structure is embedded in the fourth wall, and the fourth wall can also provide positioning and support for the second threaded structure, so that the second threaded structure can be better connected with the corresponding third terminal and fourth terminal, and the stable connection with the external electrical connection structure is ensured.

[0123] In some embodiments, the second threaded structure is a nut for adapting and connecting an M3 bolt.

[0124] In some embodiments, the second supporting portion further includes a fifth wall protruding from the fourth surface in the first direction, the fifth wall is located on the side of the fourth wall facing the winding portion in the axial direction of the second connecting hole, the fourth wall and the fifth wall are arranged in a spaced manner, and the second accommodating hole is located between the fourth wall and the fifth wall.

[0125] By adopting the technical scheme of the embodiment, the second supporting part comprises a fourth wall and a fifth wall which are arranged in an up-down interval along the axial direction of the second connecting hole, the third terminal and the fourth terminal are attached to the corresponding fourth wall, a part of space between the fourth wall and the fifth wall forms a second accommodating hole, the fourth wall is provided with a second through hole to communicate the second connecting hole and the second accommodating hole, so that the end part of the fastener sequentially passes through the second connecting hole and the second through hole and then extends into the second accommodating hole.

[0126] In some embodiments, the second supporting part comprises two fourth walls and a fifth wall, along the radial direction of the second connecting hole, the two fourth walls are respectively arranged on the opposite sides of the second end wall, and the third terminal and the fourth terminal are respectively attached to the two fourth walls.

[0127] By adopting the technical scheme of the embodiment, the second supporting part comprises a fourth wall and a fifth wall which are arranged in an up-down interval along the axial direction of the second connecting hole, the third terminal and the fourth terminal are attached to the corresponding fourth wall, a part of space between the fourth wall and the fifth wall forms a second accommodating hole, the fourth wall is provided with a second through hole to communicate the second connecting hole and the second accommodating hole, so that the end part of the fastener sequentially passes through the second connecting hole and the second through hole and then extends into the second accommodating hole.

[0128] In some embodiments, the second supporting part further comprises at least three sixth walls which are arranged in an interval and connected to the fourth wall and the fifth wall along the radial direction of the second connecting hole, and a fourth wall, a fifth wall, two adjacent sixth walls and a part of the fourth surface form a second accommodating hole.

[0129] By adopting the technical scheme of the embodiment, the plurality of sixth walls are arranged to connect the fourth wall and the fifth wall, so as to improve the structural strength of the second supporting part and the support stability and reliability of the corresponding third terminal and fourth terminal.

[0130] In some embodiments, along the axial direction of the second connecting hole, the fifth wall is arranged in an interval with the main body part.

[0131] By adopting the technical scheme of the embodiment, along the axial direction of the second connecting hole, the second supporting part is arranged in an interval with the main body part, the second supporting part does not interfere with the installation of the main body part, and at the same time, the third terminal and the fourth terminal are supported by the second supporting part and are also arranged in an interval with the main body part to meet the electrical insulation requirement.

[0132] In some embodiments, the third conductive part further comprises a first adapter part exposed on the surface of the insulating support, the fourth conductive part further comprises a second adapter part exposed on the surface of the insulating support, the main body part is further provided with an adapter, the first adapter part and the second adapter part are respectively electrically connected to one end of the adapter, the other end of the adapter is electrically connected to the first contact and the second contact, and the adapter is connected to the fifth wall.

[0133] By adopting the technical scheme of the embodiment, the adapter is arranged to connect the first contact and the third conductive part, and to connect the second contact and the fourth conductive part, so that the third conductive part and the fourth conductive part are arranged more flexibly. For the first contact and the second contact at different positions, the adapter with different structures can be arranged to connect the first contact and the second contact to the third conductive part and the fourth conductive part which are arranged at positions close to each other, so that the third terminal and the fourth terminal are arranged relatively close to each other, facilitating the subsequent concentrated connection operation of the fastener. In addition, the adapter is connected to the fifth wall, and the fifth wall can support the adapter.

[0134] In some embodiments, the third conductive part further comprises a third intermediate connecting part, the third intermediate connecting part is embedded in the interior of the second end wall, the third terminal is connected to one end of the third intermediate connecting part, and the first adapter part is connected to the other end of the third intermediate connecting part.

[0135] The fourth conductive part further comprises a fourth intermediate connecting part, the fourth intermediate connecting part is embedded in the interior of the second end wall, the fourth terminal is connected to one end of the fourth intermediate connecting part, and the second adapter part is connected to the other end of the second intermediate connecting part.

[0136] By adopting the technical scheme of the embodiment, the third intermediate connecting part in the third conductive part is embedded in the interior of the insulating support, and the fourth intermediate connecting part in the fourth conductive part is embedded in the interior of the insulating support, so that the third conductive part and the fourth conductive part can be stably and firmly connected to the insulating support through the respective intermediate connecting parts, so that the third conductive part and the fourth conductive part are almost unable to displace relative to the insulating support. In addition, the third terminal is connected to one end of the third intermediate connecting part, the fourth terminal is connected to one end of the fourth intermediate connecting part, the third conductive part and the fourth conductive part penetrate the insulating support, and from the spatial structure, the third conductive part and the fourth conductive part are inserted into the insulating support, and the end part is drawn out from the insulating support as a connecting part for electrical connection with the outside. In this way, the current in the relay can be stably and reliably transmitted through the third conductive part and the fourth conductive part, and the intermediate connecting part is embedded in the interior of the insulating support, so that it is isolated from the surrounding conductive parts or other possible conductive parts, thereby also reducing the risk of electrical failure of the entire system.

[0137] In some embodiments, the third terminal and the first adapter part are integrally and foldably connected with the third intermediate connecting part, and the fourth terminal and the second adapter part are integrally and foldably connected with the fourth intermediate connecting part.

[0138] By adopting the technical scheme of the embodiment, the third terminal is integrally bent and connected with the third intermediate connecting part, and the fourth terminal is integrally bent and connected with the fourth intermediate connecting part, so that when being manufactured, no extra parts are needed, and the third terminal and the fourth terminal can be directly bent and manufactured by the corresponding intermediate connecting parts, which helps to reduce the manufacturing cost while ensuring reliable installation and connection.

[0139] In some embodiments, the conductive piece is injection molded with the insulating support insert.

[0140] By adopting the technical scheme of the embodiment, the conductive piece is injection molded with the insulating support, so that the connection between the conductive piece and the insulating support is more tight and firm, thereby enabling the conductive piece to be stably connected to the insulating support, and the conductive piece is not easy to fall off or loosen, and can remain in place even when subjected to certain external forces (such as vibration and impact), thereby helping to improve the stability and reliability of the electric energy transmission of the conductive piece and improve the stable transmission of the internal and external currents of the relay.

[0141] In a second aspect, the embodiments of the present application also provide a distribution box, which comprises a shell, a connecting assembly and the above-mentioned relay, the shell is provided with a containing groove, the relay is installed in the containing groove, the connecting assembly comprises a plurality of connecting terminals exposed on the surface of the shell, the first terminal and the second terminal extend out of the containing groove, the first connecting surface and the surface of one connecting terminal are in contact and electrically connected with each other, and the second connecting surface and the surface of another connecting terminal are in contact and electrically connected with each other.

[0142] By adopting the technical scheme of the embodiments of the present application, the first conductive piece and the second conductive piece can be in contact and electrically connected with the external electric connection structure through the first connecting surface and the second connecting surface, thereby realizing the electrical connection between the relay in the distribution box and the connecting assembly, and establishing a reliable current path between the relay and the external control circuit to realize power and signal transmission. Moreover, the first terminal and the second terminal are directly in contact with the connecting terminals of the connecting assembly to realize electrical connection, without the need of using an intermediate connecting part for switching, which can effectively solve the assembly problems caused by the need of inserting the first terminal and the second terminal into the intermediate connecting part and inserting the connecting part of the external electric connection structure into the intermediate connecting part, and the first terminal, the second terminal and the connecting terminal almost have no risk of connection instability or failure caused by the deformation or damage of the connection structure, which is beneficial to improve the assembly efficiency and the reliability of assembly. In addition, the omission of the intermediate connecting part can also simplify the structure, reduce the assembly operation and reduce the cost.

[0143] In some embodiments, the first terminal is provided with a first connecting hole penetrating the first connecting surface, the second terminal is provided with a first connecting hole penetrating the second connecting surface, the connecting terminal is provided with a locking hole, and the connecting assembly further comprises a fastener, each connecting terminal is matched with the first connecting hole and the locking hole by the fastener to be locked and connected with the corresponding first terminal or second terminal.

[0144] By adopting the technical scheme of the embodiment, the first connecting hole is arranged on the first terminal and the second terminal of the relay, and the locking hole is arranged on the connecting terminal of the connecting assembly, the locking hole is matched with the first connecting hole and connected with the fastener, thus the first terminal and the second terminal exposed on the surface of the relay are matched and locked with the connecting terminal of the connecting assembly arranged on the shell by the fastener, thereby realizing the electrical connection between the relay in the distribution box and the external electrical connection assembly, the relay is locked and electrically connected with the connecting terminal of the connecting assembly through the first terminal and the second terminal, thereby a reliable current path can be established between the relay and the connecting terminal, and stable power and signal transmission is realized. Moreover, the first terminal and the second terminal are connected with the connecting terminal by the fastener, without using an intermediate connecting component for connection, thereby effectively solving the assembly problem caused by the insertion of the first terminal and the second terminal into the intermediate connecting component and the insertion of the connecting terminal into the intermediate connecting component, there is almost no risk of connection instability or failure caused by the deformation or damage of the connection structure, which is beneficial to the assembly efficiency between the relay and other structures in the distribution box, in addition, the intermediate connecting component is omitted, the overall structure of the distribution box is simplified, the wiring and structure arrangement in the distribution box are simpler, thereby the assembly operation can be reduced and the cost can be reduced.

[0145] In some embodiments, the fastener comprises an M3 bolt.

[0146] In some embodiments, the groove wall of the accommodating groove is spaced apart to be provided with two first installation grooves, the first terminal extends into the first installation groove, and the second terminal extends into the second installation groove.

[0147] By adopting the technical scheme of the embodiment, the groove wall of the accommodating groove is provided with the first installation groove, the first terminal and the second terminal led out from the surface of the relay can be arranged in the first installation groove and the second installation groove respectively, and each connecting terminal is matched and locked with the corresponding first terminal and second terminal at the position of the first installation groove and the second installation groove. In this way, the first installation groove and the second installation groove are arranged, on the one hand, to provide installation positions for the first terminal and the second terminal, and on the other hand, to facilitate the positioning of the setting position of the connecting terminal of the connecting assembly, so that the connecting terminal and the corresponding first terminal and second terminal can be positioned in specific first installation grooves and second installation grooves and matched and locked at specific positions.

[0148] In some embodiments, the housing is further provided with a baffle plate corresponding to the position of the first mounting groove, the baffle plate being arranged at the side of the first mounting groove along the radial direction of the first connecting hole, and at least part of the connecting terminal is located in the projection area of the baffle plate along the radial direction of the first connecting hole.

[0149] By adopting the technical scheme of the embodiment, the baffle plate is arranged at the side of the first mounting groove, and the baffle plate has a certain size along the axial direction of the first connecting hole, so that part or all of the connecting terminal can be located in the projection area of the baffle plate, that is, part or all of the connecting terminal can be shielded by the baffle plate along the axial direction of the first connecting hole, and the baffle plate can play a protection role to reduce the adverse effects of the external environment on the first terminal, the second terminal and the connecting terminal.

[0150] In some embodiments, the relay further comprises a yoke, and the accommodating groove is provided with a protruding rib opposite to the groove wall of the yoke, and at least part of the protruding rib is in contact with the yoke.

[0151] By adopting the technical scheme of the embodiment, the protruding rib is in contact with the yoke, so that a certain gap is formed between the yoke and the groove wall of the accommodating groove, which can be used for heat dissipation and glue filling.

[0152] In some embodiments, the protruding rib comprises a first rib and a second rib, the yoke is provided with a protruding portion at the middle portion, the protruding size of the first rib from the groove wall of the accommodating groove is greater than the protruding size of the second rib from the groove wall of the accommodating groove, the first rib is in contact with the yoke at the position of the side of the yoke located at the protruding portion, and the second rib is arranged in a spaced manner with the protruding portion.

[0153] By adopting the technical scheme of the embodiment, the yoke is provided with a protruding portion at the middle portion, the protruding portion can make the magnetic field more concentrated, and can also adjust the shape of the magnetic circuit, the second rib avoids the protruding portion of the yoke to not affect the normal magnetic conduction of the yoke, and the first rib can be in contact with other positions of the yoke, so that the protruding portion can not be in contact with the groove bottom of the accommodating groove, and a gap can be formed between the yoke and the groove wall of the accommodating groove.

[0154] In some embodiments, the first rib and the second rib are annular ribs, the first rib is arranged around the second rib, and a glue layer is arranged in the inner side area of the first rib and in the area between the first rib and the second rib.

[0155] By adopting the technical scheme of the embodiment, the inner side region of the first rib and the region between the first rib and the second rib can be filled with glue. When the relay is installed, glue is first applied in the corresponding region, and then the relay is installed in the accommodating groove. Before the glue solidifies, the relay can move relative to the groove wall by the flowability of the glue. Before the glue solidifies, the fastener is locked. In this way, the relay can move to reduce the risk of stress concentration and the risk of damage to the connection structure caused by stress concentration. After the fastener is locked, the glue layer solidifies, thereby firmly positioning and installing the relay in the accommodating groove.

[0156] In some embodiments, a limiting structure is further arranged between the relay and the groove wall of the accommodating groove, and the limiting structure is used to limit the relative movement between the relay and the groove wall of the accommodating groove.

[0157] By adopting the technical scheme of the embodiment, by arranging the limiting structure between the relay and the groove wall of the accommodating groove, the existence of the limiting structure makes the relay have a relatively determined installation position in the accommodating groove, thereby reducing the risk of random movement of the relay during installation or use.

[0158] In some embodiments, the relay includes at least one of a main positive relay, a main negative relay, and a pre-charging relay.

[0159] In a third aspect, the application provides a battery device, which includes a box body, a battery monomer assembly, and the above-mentioned power distribution box. The battery monomer assembly and the power distribution box are arranged in the box body.

[0160] In a fourth aspect, the application provides a power consumption device, which includes the above-mentioned battery device, and the battery device is used to supply electric energy to the power consumption device.

[0161] The above description is only a summary of the technical scheme of the application. In order to more clearly understand the technical means of the application, the following will be described in detail according to the content of the description, and in order to make the above and other purposes, characteristics and advantages of the application more obvious and easy to understand, the specific embodiments of the application will be further described in detail. DETAILED DESCRIPTION BRIEF DESCRIPTION OF DRAWINGS

[0162] In order to more clearly illustrate the technical solutions in the embodiments of the application, the following will briefly introduce the drawings needed to be used in the embodiments or exemplary technical descriptions. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can also be obtained by those skilled in the art without any creative labor.

[0163] Fig. 1 is a structural schematic view of a vehicle according to some embodiments of the application;

[0164] Fig. 2 is an exploded schematic view of a battery device according to some embodiments of the application;

[0165] Fig. 3 is a structural schematic diagram of a relay according to some embodiments of the present application;

[0166] Fig. 4 is a structural schematic diagram of a relay according to some other embodiments of the present application;

[0167] Fig. 5 is a structural schematic diagram of a relay according to yet some other embodiments of the present application;

[0168] Fig. 6 is a structural schematic diagram of a relay according to still some other embodiments of the present application;

[0169] Fig. 7 is an exploded schematic diagram of the relay shown in Fig. 6;

[0170] Fig. 8 is a structural schematic diagram of an insulating support of the relay shown in Fig. 6;

[0171] Fig. 9 is a structural schematic diagram of the insulating support of the relay shown in Fig. 6, in which a conductive member is embedded and a coil is installed;

[0172] Fig. 10 is an enlarged schematic diagram of A in Fig. 6;

[0173] Fig. 11 is a sectional view of a portion of the relay shown in Fig. 6;

[0174] Fig. 12 is another perspective view of the relay shown in Fig. 6;

[0175] Fig. 13 is an enlarged schematic diagram of B in Fig. 12;

[0176] Fig. 14 is another sectional view of a portion of the relay shown in Fig. 6;

[0177] Fig. 15 is a structural schematic diagram of a first conductive member (second conductive member) of the relay shown in Fig. 7;

[0178] Fig. 16 is a structural schematic diagram of a third conductive member (fourth conductive member) of the relay shown in Fig. 7;

[0179] Fig. 17 is a structural schematic diagram of a distribution box according to some embodiments of the present application;

[0180] Fig. 18 is an exploded schematic diagram of the distribution box according to some embodiments of the present application;

[0181] Fig. 19 is an enlarged schematic diagram of C in Fig. 18;

[0182] Fig. 20 is a structural schematic diagram of a second housing of the distribution box shown in Fig. 18;

[0183] Fig. 21 is a sectional view of the second housing of the distribution box shown in Fig. 20.

[0184] Wherein, the same reference signs in the drawings: 100, vehicle; 1001, controller; 1002, motor; 200, battery device; 10, relay; 11, insulating support; 111, partition; 112, winding part; 113, first surface; 1131, sink; 1132, empty position; 114, second surface; 115, first end wall; 116, second end wall; 1161, fourth surface; 117, first supporting part; 1171, first containing hole; 1172, first wall; 1173, second wall; 1174, first through hole; 1175, third wall; 118, third surface; 119, second supporting part; 1191, second containing hole; 1192, fourth wall; 1193, fifth wall; 1194, second through hole; 1195, sixth wall; 12, electric element; 121, coil; 122, yoke; 1221, cavity; 1222, bayonet; 1223, protruding part; 1224, first plate body; 1225, second plate body; 123, adapter; 124, first contact; 125, second contact; 13, conductive element; 131a, first connecting surface; 131b, second connecting surface; 131c, first intermediate connecting part; 131d, second intermediate connecting part; 131e, first connecting hole; 1311, first terminal; 1312, second terminal; 1313, third terminal; 1314, fourth terminal; 132a, third connecting surface; 132b, fourth connecting surface; 132c, third intermediate connecting part; 132d, fourth intermediate connecting part; 132e, second connecting hole; 1321, first wiring part; 1322, second wiring part; 1323, first adapter part; 1324, second adapter part; 1325, clamping groove; 133, first conductive element; 134, second conductive element; 135, third conductive element; 136, fourth conductive element; 137, first threaded structure; 1371, first threaded hole; 138, second threaded structure; 1381, second threaded hole; 14, main body part; 20, box body; 201, containing space; 202, first cover body; 203, second cover body; 30, battery monomer assembly; 40, power distribution box; 401, main positive relay; 402, main negative relay; 403, pre-charging relay; 41, shell; 4121, containing groove; 4122, first mounting groove; 4123, baffle; 4124, protruding rib; 4125, first rib; 4126, second rib; 4127, adhesive layer; 4128, limiting structure; 42, connecting assembly; 421, connecting terminal; 422, fastener; 423, locking hole. DETAILED DESCRIPTION

[0185] In order to make the technical problems, technical solutions and beneficial effects of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings 1 to 21 and embodiments. It should be understood that the specific embodiments described herein are only intended to explain the present application and are not intended to limit the present application.

[0186] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application; the present specification and claims and the aforementioned description of the drawings, the terms "comprising" and "having" and any variations thereof are intended to cover a non-exclusive inclusion.

[0187] In the description of the embodiments of the present application, the technical terms "first", "second" and the like are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features.

[0188] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least some embodiments of the present application. The appearance of the phrase in various places in the specification does not necessarily all refer to the same embodiment, nor is it necessarily independent or alternative embodiments to other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined in any suitable manner with other embodiments.

[0189] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone. In addition, the character " / " in this paper generally represents a "or" relationship between the front and rear associated objects.

[0190] In the description of the embodiments of the present application, the term "a plurality of" refers to two or more (including two), and similarly, "a plurality of groups" refers to two or more groups (including two groups), and "a plurality of pieces" refers to two or more pieces (including two pieces). The meaning of "several" is one or more, unless otherwise explicitly specified.

[0191] In the description of the embodiments of the present application, the orientations or positional relationships indicated by the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the embodiments of the present application.

[0192] In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the technical terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, can be fixedly connected, or can be detachably connected, or can be integrated; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium, or can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0193] In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0194] In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the technical term "adjacent" means close in position. For example, A1, A2 and B three components, the distance between A1 and B is greater than the distance between A2 and B, then A2 is closer to B than A1, that is, A2 is adjacent to B, and B can also be said to be adjacent to A2. For example, when there are multiple C components, the multiple C components are C1, C2……CN respectively, and when one of the C components, such as C2, is closer to the B component than the other C components, then B is adjacent to C2, and C2 can also be said to be adjacent to B.

[0195] At present, from the development of market situation, the application of power battery is more and more extensive. The power battery is not only applied to the energy storage power supply system of hydroelectric, thermal, wind and solar power stations, but also widely applied to electric bicycles, electric motorcycles, electric vehicles and other electric vehicles, military equipment, aerospace and other fields. With the continuous expansion of the application field of power battery, the market demand is also increasing.

[0196] With the increasing demand for batteries in the market, the manufacturing efficiency of batteries is also highly required. The distribution box is one of the important components inside the battery, and the distribution box is a control unit for distributing the energy of the battery, which has an important influence on the reliable operation of the whole battery. In the assembly of the distribution box, a plurality of relays need to be connected with the terminals, and the assembly efficiency of the distribution box will affect the economic efficiency of the whole battery.

[0197] In the related art, the terminals of each relay in the distribution box need to be electrically connected with other electrical components in the distribution box. Currently, the terminals of the relay are in the form of pins extending from the surface of the relay. In the process of connecting the terminals of the relay with other electrical components, an intermediate connecting piece is used as an adapter to connect the relay and other electrical components, such as inserting the pins of the relay into one terminal slot of the intermediate connecting piece, and then inserting the connecting end of the electrical component into another terminal slot of the intermediate connecting piece. Although this assembly method can electrically connect the terminals of the relay and the electrical components, when the terminals of the relay and the electrical component are inserted into the terminal slot of the intermediate connecting piece, the terminals are prone to be skewed, the automatic assembly is difficult, the assembly failure rate is high, and the assembly efficiency is low.

[0198] Therefore, the structure of the relay is improved, and a relay is provided. The first conductive part has a first terminal exposed to the outer surface of the insulating support, the second conductive part has a second terminal exposed to the outer surface of the insulating support, the first terminal has a first connecting surface, the second terminal has a second connecting surface, the first conductive part and the second conductive part can be in contact with each other and electrically connected with the external electrical connection structure through the first connecting surface and the second connecting surface, so as to realize the electrical connection between the external control circuit and the internal electrical component of the relay, and to establish a reliable current path between the relay and the external control circuit, and to realize power and signal transmission. Moreover, the first terminal and the second terminal directly contact each other to realize electrical connection with the external electrical connection structure, without the need for an intermediate connecting part for adaptation, which can effectively solve the assembly problems caused by the need to insert the first terminal and the second terminal into the intermediate connecting piece and to insert the connecting part of the external electrical connection structure into the intermediate connecting piece. There is almost no risk of connection instability or failure due to deformation or damage of the connecting structure, which is beneficial to improve the assembly efficiency and the reliability of the assembly. In addition, the omission of the intermediate connecting piece can also simplify the structure, reduce the assembly operation, and reduce the cost.

[0199] The relay provided in the present application can be applied to the distribution box, and the distribution box can be applied to the battery device, so as to improve the assembly efficiency of the distribution box, thereby improving the overall assembly efficiency of the battery device and improving the economic efficiency of the battery device.

[0200] The battery apparatus disclosed in the embodiments of the present application can be used in an electric device such as a vehicle, a ship or an aircraft, but is not limited thereto. The power supply system of the electric device can be composed of the battery disclosed in the present application, so that the overall assembly efficiency of the battery can be effectively improved to meet the requirement of manufacturing efficiency.

[0201] The embodiments of the present application provide an electric device using a battery apparatus as a power supply. The battery apparatus is configured to provide electric energy for the electric device. The electric device can be, but is not limited to, a mobile phone, a portable device, a notebook computer, an electric vehicle, an electric automobile, a ship, a spacecraft, an electric toy and an electric tool, etc. The spacecraft includes an airplane, a rocket, a space shuttle and a spacecraft, etc. The electric toy includes a stationary or mobile electric toy, such as a game machine, an electric automobile toy, an electric ship toy and an electric airplane toy, etc. The electric tool includes a metal cutting electric tool, a grinding electric tool, an assembling electric tool and a railway electric tool, such as an electric drill, an electric grinder, an electric wrench, an electric screwdriver, an electric hammer, an impact electric drill, a concrete vibrator and an electric planer.

[0202] The following embodiments are described for the convenience of illustration. In some embodiments, the electric device is described by taking a vehicle as an example.

[0203] Referring to FIG. 1, FIG. 1 is a structural schematic diagram of a vehicle 100 according to some embodiments of the present application. The vehicle 100 can be a fuel automobile, a gas automobile or a new energy automobile. The new energy automobile can be a pure electric automobile, a hybrid electric automobile or a range extended automobile, etc. The vehicle 100 is internally provided with a battery apparatus 200. The battery apparatus 200 can be arranged at the bottom, the head or the tail of the vehicle 100. The battery apparatus 200 can be used for power supply of the vehicle 100, for example, the battery apparatus 200 can be used as an operating power supply of the vehicle 100. The vehicle 100 can further include a controller 1001 and a motor 1002. The controller 1001 is used to control the battery apparatus 200 to supply power to the motor 1002, for example, to meet the working power demand of the vehicle 100 during starting, navigation and driving.

[0204] In some embodiments, the battery apparatus 200 can not only be used as an operating power supply of the vehicle 100, but also be used as a driving power supply of the vehicle 100, to replace or partially replace fuel or natural gas to provide driving power for the vehicle 100.

[0205] Referring to FIG. 2, the embodiments of the present application provide a battery apparatus 200. The battery apparatus 200 can include one or more battery cell assemblies 30 for providing voltage and capacity. The battery cell assembly 30 can include a plurality of battery cells connected in series, in parallel or in a mixed manner by a busbar component.

[0206] In some embodiments, the battery device 200 comprises a battery management system (BMS), which is a core component responsible for monitoring and managing the state of the battery cells. Its main functions include: real-time monitoring of battery cell voltage, current, temperature and other parameters to ensure the battery is in a safe working state; balancing the charge of each battery cell in the battery cell assembly 30 through active or passive methods to extend the service life of the battery; controlling and regulating the temperature of the battery cells to avoid performance degradation or safety risks caused by overheating or overcooling; detecting faults in the battery cell assembly 30 and the BMS itself, and taking appropriate protective measures such as power cutoff, alarm, etc.

[0207] As an example, the battery management system can be arranged in the box 20 to be supported and protected by the box 20.

[0208] As an example, the battery management system can also be arranged outside the box 20 and connected to the battery cells, sensors and other devices inside the box 20 through wires.

[0209] In some embodiments, the battery cell assembly 30 is usually formed by arranging a plurality of battery cells. The battery cells can be secondary batteries, which means that after the battery cells are discharged, they can be activated by charging to continue to be used. The battery cells can be lithium-ion batteries, sodium-ion batteries, sodium-lithium-ion batteries, lithium-metal batteries, sodium-metal batteries, lithium-sulfur batteries, magnesium-ion batteries, nickel-hydrogen batteries, nickel-cadmium batteries, lead-acid batteries, etc. The present application is not limited thereto.

[0210] As an example, the battery cell assembly 30 can be a battery module, which is formed by arranging and fixing a plurality of battery cells into an independent module. As an example, the battery module can be formed by bundling a plurality of battery cells with a cable tie.

[0211] In some embodiments, the battery device 200 can be a battery pack, which comprises a box 20 and one or more battery cell assemblies 30, and the battery cell assemblies 30 are accommodated in the box 20.

[0212] As an example, the battery cell assembly 30 can be a battery module, which can be accommodated in the box 20 by fixing the battery module in the box 20.

[0213] As an example, the battery cell assembly 30 can also be accommodated in the box 20 by directly fixing a plurality of battery cells in the box 20.

[0214] In some embodiments, the box 20 has an accommodating space 201 inside to accommodate the battery cell assembly 30. The box 20 can be made of a material with certain hardness and strength, so that the box 20 is not easy to deform when being squeezed or collided, and the battery can have higher structural strength and improved reliability. The material of the box 20 can be various, including but not limited to aluminum, stainless steel, aluminum alloy, iron or plastic, etc.

[0215] In some embodiments, the box 20 can be part of the chassis structure of the vehicle 100. For example, part of the box 20 can be at least part of the floor of the vehicle 100, or part of the box 20 can be at least part of the cross beam and longitudinal beam of the vehicle 100.

[0216] As an example, the box 20 can include a first cover 202 and a second cover 203, the first cover 202 and the second cover 203 are covered with each other, and the first cover 202 and the second cover 203 jointly define an accommodating space 201 for accommodating battery cells. The second cover 203 can be a hollow structure with one end open, and the first cover 202 can be a plate structure, the first cover 202 covers the open side of the second cover 203, so that the first cover 202 and the second cover 203 jointly define the accommodating space 201; the first cover 202 and the second cover 203 can also be hollow structures with one side open, and the open side of the first cover 202 covers the open side of the second cover 203. Of course, the box 20 formed by the first cover 202 and the second cover 203 can have various shapes, such as a cylinder, a cuboid, etc.

[0217] In some embodiments, as shown in FIG. 2, the battery device 200 can also include a power distribution box 40, which can be accommodated in the accommodating space 201 of the box 20, or can be located outside the accommodating space 201 of the box 20. The power distribution box 40 is electrically connected with the battery cell assembly 30, and the power distribution box 40 is used to control the charging and discharging of the battery device 200, etc.

[0218] Hereinafter, the relay 10 and the power distribution box 40 of the present application will be described in detail in combination with FIGS. 3 to 21 and specific embodiments. In the embodiments of the present application, the first direction is the direction indicated by the bidirectional arrow F1 in the figure, the axial direction of the winding portion 112 and the axial direction of the coil 121 are in the same direction as the first direction, and the axial directions of the coil 121, the first connection hole 131e and the second connection hole 132e are perpendicular to the first direction, i.e. the direction indicated by the bidirectional arrow F2 in the figure.

[0219] Please refer to FIG. 3 to FIG. 5, and FIG. 7, FIG. 17 and FIG. 18, the embodiment of the application provides a relay 10, comprising an insulating support 11, an electrical element 12 and a conductive element 13, the electrical element 12 is installed on the insulating support 11, the conductive element 13 comprises a first conductive element 133 and a second conductive element 134, the first conductive element 133 and the second conductive element 134 are respectively embedded in the insulating support 11 and electrically connected to the electrical element 12, the first conductive element 133 comprises a first terminal 1311 with a surface exposed to the insulating support 11, the second conductive element 134 comprises a second terminal 1312 exposed to the surface of the insulating support 11 and arranged in a spaced manner with the first terminal 1311; wherein, the first terminal 1311 has a first connecting surface 131a, the second terminal 1312 has a second connecting surface 131b, the first connecting surface 131a and the second connecting surface 131b are used to contact and electrically connect with the external electrical connection structure, so as to make the first conductive element 133 and the second conductive element 134 connected with the external control circuit.

[0220] It can be understood that the relay 10 is a switching device mainly used for controlling the switching of the circuit to enable the normal operation of the circuit. The electrical element 12 of the relay 10 can be a coil 121, a contact, etc. When the relay 10 works, the current is transmitted from the external control circuit to the internal electrical element 12 through the first conductive element 133 and the second conductive element 134, realizing the transmission and distribution of the current in the relay 10, wherein the electrical element 12 can process the current according to the specific design, such as changing the current size, direction, etc.; or the external control signal can also pass through the first conductive element 133 and the second conductive element 134 electrical element 12, realizing the control of the working state of the relay 10, such as controlling the attraction and disconnection of the relay 10, thereby realizing the on-off control of the circuit, etc.

[0221] In some examples, as shown in FIG. 18, the relay 10 can be a main relay and a pre-charging relay 403, etc., wherein the main relay comprises a main positive relay 401 arranged on the positive side of the high-voltage system and a main negative relay 402 arranged on the negative side of the high-voltage system, and by controlling the switching state of the main relay, the automatic control of the circuit can be realized in the high-voltage system.

[0222] In some other embodiments, as shown in FIG. 18, the relay 10 can also be a pre-charge relay 403, which is a relay 10 for controlling the opening and closing of a pre-charge circuit in the battery device 200, i.e., before the main relay works, the pre-charge circuit is turned on for self-checking. The pre-charge relay 403 can play a role of pre-charging in the circuit, and when the electrical device such as the vehicle 100 starts, the capacitor can be fully charged through pre-charging, and when the system switch starts, the charge of the capacitor is slowly released to the switch circuit to reduce the load and voltage drop of the switch. The pre-charge relay 403 controls the charging and discharging process of the capacitor, thereby achieving more stable power transmission and higher battery life.

[0223] In the embodiments of the present application, the relay 10 includes an insulating support 11, wherein the insulating support 11 refers to a component for realizing an electrical insulation function, which has an electrical insulation effect, can prevent the conduction of current between conductors of different potentials inside the relay 10, and reduce the risk of electrical faults such as short circuit and electric shock. It can also provide mechanical support, support and fix the electrical parts 12 inside the relay 10, maintain the relative position of the electrical parts 12 in the relay 10 stable, such as fixing the coil 121 winding, conductors, etc., and improve the overall structural stability of the relay 10. At the same time, it can also realize electrical isolation and protection, which can isolate different circuits or electrical parts 12 from each other to avoid mutual interference between them, and also can protect the internal electrical parts 12 from external factors such as mechanical impact and chemical corrosion.

[0224] The insulating support 11 can be made of inorganic insulating materials, organic insulating materials, and composite insulating materials. For example, the material of the insulating support 11 can be ceramic, glass, mica, plastic, rubber, and epoxy glass fiber cloth composite material, etc.

[0225] In the embodiments of the present application, please refer to FIGS. 5, 7 and 18, the relay 10 includes the insulating support 11, the electrical parts 12 and the conductive parts 13, i.e., the relay 10 is composed of at least the insulating support 11, the electrical parts 12 and the conductive parts 13, wherein the insulating support 11 plays an electrical insulation role, electrically isolates the electrical parts 12 and the conductive parts 13 from other components to improve the orderliness and stability of the internal circuit of the relay 10; the electrical parts 12 are components inside the relay 10 for realizing specific electrical functions, the electrical parts 12 are installed on the insulating support 11, and the insulating support 11 provides a mounting position for the electrical parts 12 and electrically insulates the electrical parts 12 from other electrical components that do not need to be conducted. For example, the electrical parts 12 can be coil 121, capacitor, resistor, etc.

[0226] The conductive piece 13 includes a first conductive piece 133 and a second conductive piece 134, the first conductive piece 133 and the second conductive piece 134 are embedded in the insulating support 11 and respectively have a first terminal 1311 and a second terminal 1312 exposed to the surface of the insulating support 11, the first conductive piece 133 and the second conductive piece 134 are partially embedded in the interior of the insulating support 11, on the basis of which, the first terminal 1311 and the second terminal 1312 are exposed to the surface of the insulating support 11, the first terminal 1311 and the second terminal 1312 are used for electrical connection with the external electrical connection structure (such as the connecting terminal of the electrical connection piece and the like) of the relay 10, in this way, the first conductive piece 133 and the second conductive piece 134 can be closely combined with the insulating support 11, so that the first conductive piece 133 and the second conductive piece 134 can be stably and firmly installed on the insulating support 11, and the electrical connection between the electrical element 12 inside the relay 10 and the electrical element of the external control circuit can be realized through the first terminal 1311 and the second terminal 1312.

[0227] Among them, the first terminal 1311 and the second terminal 1312 are used for connection with the external electrical connection structure, the first terminal 1311 has a first connecting surface 131a, and the second terminal 1312 has a second connecting surface 131b, the first connecting surface 131a and the second connecting surface 131b are respectively used for mutual contact and electrical connection with the external electrical connection structure, wherein mutual contact and electrical connection means that the first connecting surface 131a and the second connecting surface 131b directly contact the electrical connection structure of the corresponding external structure, and realize electrical conduction through such direct contact, and the current is directly transmitted between the two surfaces in contact. In specific examples, the first connecting surface 131a and the second connecting surface 131b can be directly connected by plug-in, bonding, welding, bolt locking, clamping and the like between the first connecting terminal 421 and the second connecting terminal 421 and the corresponding external electrical connection structure.

[0228] The relay 10 of the embodiment of the present application, the first conductive member 133 has a first terminal 1311 exposed to the outer surface of the insulating support 11, the second conductive member 134 has a second terminal 1312 exposed to the outer surface of the insulating support 11, the first terminal 1311 has a first connecting surface 131a, the second terminal 1312 has a second connecting surface 131b, the first conductive member 133 and the second conductive member 134 can be in contact with each other and electrically connected to the external electrical connection structure through the first connecting surface 131a and the second connecting surface 131b, so as to realize the electrical connection between the external control circuit and the electrical member 12 inside the relay 10, and can establish a reliable current path between the relay 10 and the external control circuit, realize power and signal transmission. Moreover, the first terminal 1311 and the second terminal 1312 are directly in contact with each other to realize electrical connection with the external electrical connection structure, without the need for an intermediate connecting component for switching, which can effectively solve the assembly problems caused by the need to insert the first terminal 1311 and the second terminal 1312 into the intermediate connecting member and insert the connecting part of the external electrical connection structure into the intermediate connecting member. There is almost no risk of connection instability or failure due to deformation or damage of the connecting structure between the first terminal 1311 and the second terminal 1312 and the external electrical connection structure, which is conducive to improving the assembly efficiency and improving the reliability of the assembly. In addition, after omitting the intermediate connecting member, the structure can also be simplified, the assembly operation can be reduced, and the cost can be reduced.

[0229] In some embodiments, as shown in FIGS. 3-6, the first connecting surface 131a and the second connecting surface 131b are both flat surfaces.

[0230] The first connecting surface 131a and the second connecting surface 131b are both flat surfaces, so that the first terminal 1311 and the second terminal 1312 can provide a larger contact area, so that a larger electrical contact area can be obtained when in contact with the corresponding electrical connection structure, thereby improving the stability and reliability of the electrical connection.

[0231] In some embodiments, as shown in FIGS. 3-6, the first connecting surface 131a is the largest area among the exposed surfaces of the first terminal 1311, and the second connecting surface 131b is the largest area among the exposed surfaces of the second terminal 1312.

[0232] In this way, the largest area among the exposed surfaces of the first terminal 1311 to the surface of the insulating support 11 is taken as the first connecting surface 131a, and the largest area among the exposed surfaces of the second terminal 1312 to the surface of the insulating support 11 is taken as the second connecting surface 131b, so that the first terminal 1311 and the second terminal 1312 can provide as large an electrical contact area as possible to improve the stability and reliability of the electrical connection.

[0233] In some embodiments, as shown in FIG. 3 and FIG. 5, the electrical gap between the first terminal 1311 and the second terminal 1312 is greater than 3mm.

[0234] In specific embodiments, the electrical gap between the first terminal 1311 and the second terminal 1312 is greater than 3mm to meet the requirement of electrical safety.

[0235] Exemplarily, the electrical gap between the first terminal 1311 and the second terminal 1312 can be 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, etc., or when the first conductive member 133 and the second conductive member 134 are connected in the high-voltage circuit, the electrical gap between the first terminal 1311 and the second terminal 1312 can be 9.5mm, 10mm, 11mm, or even a larger size.

[0236] Alternatively, in other embodiments, as shown in FIG. 4 and FIG. 6, the insulating support 11 is further provided with a partition 111 at the position between the first terminal 1311 and the second terminal 1312, and the first terminal 1311 and the second terminal 1312 are electrically isolated by the partition 111 to meet the requirement of electrical safety.

[0237] It can be understood that in the present embodiment, the first terminal 1311 and the second terminal 1312 are provided protruding from a surface, the partition 111 is also provided protruding from the surface at the position between the first terminal 1311 and the second terminal 1312, and the protruding height of the partition 111 is higher than the protruding height of the first terminal 1311 and the second terminal 1312, so that the current between the first terminal 1311 and the second terminal 1312 needs to climb over the partition 111 to realize conduction, on this basis, the creepage distance between the first terminal 1311 and the second terminal 1312 is greater than 3mm to meet the requirement of electrical safety between the first terminal 1311 and the second terminal 1312.

[0238] Exemplarily, the creepage distance between the first terminal 1311 and the second terminal 1312 can be 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, etc., or when the first conductive member 133 and the second conductive member 134 are connected in the high-voltage circuit, the creepage distance between the first terminal 1311 and the second terminal 1312 can be 9.5mm, 10mm, 11mm, or even a larger size.

[0239] In some embodiments, as shown in FIG. 3 to FIG. 7, the relay 10 further comprises a yoke 122 provided with a receiving cavity 1221, and part of the insulating support 11 is mounted in the receiving cavity 1221 of the yoke 122, and the first terminal 1311 and the second terminal 1312 are located outside the receiving cavity.

[0240] In the embodiment, the relay 10 further comprises a yoke 122 made of a magnetic material with high permeability, such as soft iron, which constitutes a part of the magnetic circuit inside the relay 10. Generally, the relay 10 further comprises a coil 121, and after the coil 121 generates a magnetic field, the yoke 122 guides and concentrates the magnetic field generated by the coil 121.

[0241] It can be understood that in some relays 10, such as in the relay 10, the yoke 122 connects the core and the armature, so that the magnetic field can be smoothly transmitted from the place where the coil 121 is generated to the armature, thereby realizing the attraction of the armature.

[0242] In the embodiment, the yoke 122 has a cavity 1221, that is, the yoke 122 has an internal space, and part of the insulating support 11 is mounted in the cavity 1221 of the yoke 122. The yoke 122 and the insulating support 11 are positioned and connected with each other, and the first terminal 1311 and the second terminal 1312 are located outside the cavity of the yoke 122, so that the first terminal 1311 and the second terminal 1312 can protrude from the yoke 122 and be connected with the external electrical connection structure, and the first terminal 1311, the second terminal 1312 and the yoke 122 do not interfere with each other.

[0243] In some embodiments, as shown in FIGS. 3 to 7, the yoke 122 comprises a first plate body 1224 and two second plate bodies 1225 bent and connected to opposite ends of the first plate body 1224, and the first plate body 1224 and the two second plate bodies 1225 surround to form the cavity 1221. The first terminal 1311 and the second terminal 1312 protrude from the surface of the first plate body 1224 away from the cavity 1221.

[0244] In the embodiment, the yoke 122 comprises at least three plate body structures connected with each other, and the three plate body structures surround to form the cavity 1221. Part of the insulating support 11 is mounted in the cavity 1221 and positioned and connected with the yoke 122 by being connected or contacted with the three plate body structures. The first terminal 1311 and the second terminal 1312 protrude from the surface of the first plate body 1224 away from the cavity 1221, that is, the first terminal 1311 and the second terminal 1312 protrude from the side of the first plate body 1224 away from the cavity 1221. The first terminal 1311 and the second terminal 1312 are located outside the cavity 1221 and protrude from the side wall of the yoke 122.

[0245] It can be understood that, in other embodiments, the first terminal 1311 and the second terminal 1312 can also be protrudingly arranged on the surface of the second plate body 1225 away from the cavity 1221. For example, the first terminal 1311 and the second terminal 1312 can be arranged on the same surface of the second plate body 1225 away from the cavity 1221, or the first terminal 1311 and the second terminal 1312 can be arranged on the surfaces of two different second plate bodies 1225 away from the cavity 1221.

[0246] In some embodiments, as shown in FIGS. 3-7 and 9, the electrical component 12 includes the coil 121, the insulating support 11 includes the winding portion 112 and the first end wall 115, the coil 121 is arranged around the winding portion 112, the first end wall 115 is connected to one end of the winding portion 112 on one side of the winding portion 112 along a first direction (as indicated by the double-headed arrow F1 in the figure), the winding portion 112 and the first end wall 115 are located in the cavity 1221, the first conductive part 133 and the second conductive part 134 are embedded in the first end wall 115, the first terminal 1311 and the second terminal 1312 protrude from the first end wall 115, and the first direction is the axial direction of the winding portion 112.

[0247] In the present embodiment, the electrical component 12 includes the coil 121 arranged around the insulating support 11, and the coil 121 can generate a magnetic field or achieve electromagnetic induction when energized. The insulating support 11 has the winding portion 112 and the first end wall 115, the winding portion 112 provides a space for the coil 121 to be arranged around, the first conductive part 133 and the second conductive part 134 are embedded in the first end wall 115, the first end wall 115 provides a mounting position for the first conductive part 133 and the second conductive part 134, and the first end wall 115 is located on one side of the winding portion 112, so that the first conductive part 133 and the second conductive part 134 do not affect the arrangement of the coil 121. In addition, the first terminal 1311 and the second terminal 1312 protrude from the first end wall 115 to the outside of the cavity 1221, and the first terminal 1311 and the second terminal 1312 also do not affect the arrangement of the coil 121.

[0248] It can be understood that the first end wall 115 is connected to one end of the winding portion 112 on one side of the winding portion 112 means that the first end wall 115 is integrally formed with the winding portion 112, or the first end wall 115 is clamped, inserted, buckled or bonded to the winding portion 112. For example, the first end wall 115 is integrally injection molded with the winding portion 112.

[0249] In some embodiments, as shown in FIGS. 3-7, the first end wall 115 has a first surface 113 facing the winding portion 112, and along the first direction, neither the first terminal 1311 nor the second terminal 1312 exceeds the first surface 113.

[0250] In the embodiment, the first end wall 115 has a first surface 113 facing the winding portion 112 in space, and the first terminal 1311 and the second terminal 1312 are all located on the side of the first end wall 115 away from the winding portion 112, so that the first terminal 1311 and the second terminal 1312 do not interfere with the winding of the coil 121 in space at all.

[0251] In some embodiments, as shown in FIGS. 3-7, the first end wall 115 further has a second surface 114 disposed away from the winding portion 112 in a first direction, and the first terminal 1311 and the second terminal 1312 protrude from the second surface 114 in a direction parallel or intersecting the first direction.

[0252] In this way, the first end wall 115 further has a second surface 114 disposed away from the winding portion 112, and the first terminal 1311 and the second terminal 1312 are protrudingly disposed on the second surface 114. The second surface 114 is a surface in the front-rear direction of the coil 121 (the direction indicated by the arrow F1 in FIG. 8), and the first terminal 1311 and the second terminal 1312 are led out from the surface of the insulating support 11 in the front space or the rear space of the coil 121. Taking the axial direction of the coil 121, i.e., the first direction, as the reference direction, when the relay 10 needs to be installed in a specific housing 41 of a power distribution device, and the installation direction of the relay 10 is the axial direction of the coil 121, each side surface of the relay 10 along the axial direction of the coil 121 can be provided with some connecting structures to cooperate with the connecting structures provided on the housing 41 to achieve stable and firm installation of the relay 10 in the housing 41. In this way, the first terminal 1311 and the second terminal 1312 are led out from the side surface perpendicular to the coil 121, and the first terminal 1311 and the second terminal 1312 can better avoid other connecting structures, thereby reducing the risk of interference with the installation of the relay 10 and helping to improve the assembly efficiency.

[0253] In some embodiments, as shown in FIGS. 3-7, the insulating support 11 further includes a first supporting portion 117 located outside the accommodating cavity 1221 and connected to the first end wall 115, and the first terminal 1311 and the second terminal 1312 are provided on the first supporting portion 117.

[0254] In the embodiment, by providing the first supporting portion 117, the first terminal 1311 and the second terminal 1312 can be supported, and the risk of affecting the stability of the electrical connection due to the overhanging of the first terminal 1311 and the second terminal 1312 is reduced.

[0255] The first supporting portion 117 can have various shapes, such as a cuboid shape or a cylindrical shape. The first supporting portion 117 can be connected to the insulating support 11 or integrally formed with the insulating support 11. For example, the first supporting portion 117 can be a protruding portion arranged on a side surface of the insulating support 11.

[0256] In some embodiments, the insulating support 11 includes one first supporting portion 117, and the first terminal 1311 and the second terminal 1312 are arranged in the first supporting portion 117. That is, the insulating support 11 includes one first supporting portion 117, and the first terminal 1311 and the second terminal 1312 are supported by the same first supporting portion 117.

[0257] In other embodiments, the insulating support 11 can include two first supporting portions 117 arranged in a spaced manner, the first terminal 1311 is arranged in one of the first supporting portions 117, and the second terminal 1312 is arranged in the other first supporting portion 117. That is, the insulating support 11 includes two first supporting portions 117, the first terminal 1311 is supported by one of the first supporting portions 117, and the second terminal 1312 is supported by the other first supporting portion 117.

[0258] In some embodiments, as shown in FIGS. 3 to 7, the first supporting portion 117 is connected to an edge portion of the first end wall 115.

[0259] In this way, the first supporting portion 117 is connected to the first end wall 115, the first supporting portion 117 can be a part of the insulating support 11, the first supporting portion 117 is arranged at an edge position of the first end wall 115, and the first terminal 1311 and the second terminal 1312 can be arranged at the edge position of the first end wall 115.

[0260] In some embodiments, in the first direction, the first supporting portion 117 does not protrude beyond the first surface 113.

[0261] In terms of space, the first supporting portion 117 is arranged away from the winding portion 112, the first supporting portion 117 is located on a side of the first end wall 115 away from the winding portion 112, so that the first supporting portion 117 does not interfere with the winding of the coil 121 in terms of space.

[0262] In some embodiments, as shown in FIGS. 3 and 4, the first supporting portion 117 protrudes from the first end wall 115 in a direction perpendicular to the first direction, and the first terminal 1311 and the second terminal 1312 are arranged in the first supporting portion 117.

[0263] In the embodiment, the first supporting portion 117 is arranged on the side of the first end wall 115 in a direction perpendicular to the first direction, and protrudes away from the first terminal 1311 and is located outside the accommodating cavity 1221 of the yoke 122. The first terminal 1311 and the second terminal 1312 are arranged on the first supporting portion 117 and protrude out of the outer surface of the first supporting portion 117 to expose the first connecting surface 131a and the second connecting surface 131b. In this way, the first supporting portion 117 can position and support the first terminal 1311 and the second terminal 1312 without interfering with the connection between the first terminal 1311 and the second terminal 1312 and the external electrical connection structure. The first terminal 1311 and the second terminal 1312 can protrude from any surface of the first supporting portion 117.

[0264] In a specific embodiment, as shown in FIG. 3, the first supporting portion 117 protrudes from the first end wall 115 in a direction perpendicular to the first direction. The first terminal 1311 and the second terminal 1312 protrude from the first supporting portion 117 away from the winding portion 112 in a direction perpendicular to the first direction.

[0265] In the embodiment, the first terminal 1311 and the second terminal 1312 extend through the first supporting portion 117 in the protruding direction of the first supporting portion 117 and continue to extend away from the winding portion 112 to protrude from the first supporting portion 117. The first terminal 1311 and the second terminal 1312 form a plug-like structure together with the first supporting portion 117. The first terminal 1311 and the second terminal 1312 are arranged in a plug-in manner on the first supporting portion 117, and the first supporting portion 117 can position and support the first terminal 1311 and the second terminal 1312.

[0266] In a specific embodiment, as shown in FIG. 4, the first supporting portion 117 protrudes from the first end wall 115 in a direction perpendicular to the first direction. The first terminal 1311 and the second terminal 1312 extend from the first supporting portion 117 in the first direction.

[0267] In the embodiment, the first terminal 1311 and the second terminal 1312 are arranged on the surface of the first supporting portion 117 in the first direction or protrude from the surface of the first supporting portion 117 in the first direction. In the first direction, the first supporting portion 117 provides support below the first terminal 1311 and the second terminal 1312, so that the first terminal 1311 and the second terminal 1312 can be firmly connected to the first supporting portion 117.

[0268] In some embodiments, as shown in FIGS. 5 and 6, the first supporting portion 117 protrudes from the first end wall 115 along a first direction, and the first terminal 1311 and the second terminal 1312 protrude from the first supporting portion 117 along a direction perpendicular to the first direction.

[0269] In some embodiments, as shown in FIGS. 5 and 6, the first supporting portion 117 protrudes from the first end wall 115 along a first direction, and the first terminal 1311 and the second terminal 1312 protrude from the first supporting portion 117 along a direction perpendicular to the first direction.

[0270] In some embodiments, as shown in FIGS. 4-6, the first supporting portion 117 includes a first wall 1172, and the first terminal 1311 and the second terminal 1312 are attached to the first wall 1172, and the first connecting surface 131a and the second connecting surface 131b protrude from the first wall 1172 along a direction perpendicular to the first direction.

[0271] In some embodiments, as shown in FIGS. 4-6, the first supporting portion 117 includes a first wall 1172, and the first terminal 1311 and the second terminal 1312 are attached to the first wall 1172, and the first connecting surface 131a and the second connecting surface 131b protrude from the first wall 1172 along a direction perpendicular to the first direction.

[0272] In some embodiments, as shown in FIGS. 4-6, the first terminal 1311 further includes a first threaded structure 137, and the first threaded structure 137 penetrates the first connecting surface 131a along a direction perpendicular to the first connecting surface 131a.

[0273] In some embodiments, as shown in FIGS. 4-6, the second terminal 1312 further includes a first threaded structure 137, and the first threaded structure 137 penetrates the second connecting surface 131b along a direction perpendicular to the second connecting surface 131b.

[0274] In some embodiments, as shown in FIGS. 4-6, the first terminal 1311 is further provided with a first threaded structure 137 penetrating the first connecting surface 131a in a direction perpendicular to the first connecting surface 131a, and the second terminal 1312 is further provided with a first threaded structure 137 penetrating the second connecting surface 131b in a direction perpendicular to the second connecting surface 131b.

[0275] In this way, the first terminal 1311 and the second terminal 1312 are provided with the first threaded structure 137, and the two terminals can be connected with the threaded structure on the external electrical connection structure through the respective first threaded structure 137, so that the first terminal 1311 and the second terminal 1312 can be threadedly connected with the external electrical connection structure, the connection structure is simple, and the threaded connection structure can also provide sufficient connection force to keep the first connecting surface 131a and the second connecting surface 131b in close contact with the corresponding external electrical connection structure to establish a reliable and stable electrical connection.

[0276] It can be understood that the first terminal 1311 (the second terminal 1312) is further provided with the first threaded structure 137, wherein the threaded structure is a structure with a spiral thread, and the surface of the first terminal 1311 (the second terminal 1312) or the inside of the first terminal 1311 (the second terminal 1312) is provided with the threaded structure. For example, the first threaded structure 137 can be a spiral protrusion on the surface of the first terminal 1311 (the second terminal 1312), such as a stud, etc., or the first threaded structure 137 can be a threaded hole structure recessed into the inside of the first terminal 1311 (the second terminal 1312), such as a nut, etc.

[0277] In specific embodiments, the first threaded structure 137 is a nut, and the first terminal 1311 is further provided with a first connecting hole 131e penetrating the first connecting surface 131a, and the second terminal 1312 is further provided with a first connecting hole 131e penetrating the second connecting surface 131b, and at least part of the nut is embedded in the corresponding first connecting hole 131e.

[0278] In this embodiment, as shown in FIGS. 4-6, the first threaded structure 137 is a nut, and the first terminal 1311 and the second terminal 1312 are respectively provided with a first connecting hole 131e, and the nut is embedded in the first connecting hole 131e, so that the nut can be fixed to the first terminal 1311 and the second terminal 1312, and then the nut is matched with the threaded fastener 422 such as a bolt or a screw outside to lock and connect the first terminal 1311, the second terminal 1312, and the external electrical connection structure. For example, the threaded structure can be a press-in nut, etc.

[0279] In some embodiments, as shown in FIGS. 4-6, the first wall 1172 is further provided with a first through hole 1174 corresponding to the position of the first connecting hole 131e, the first through hole 1174 is coaxial with the first connecting hole 131e, and a portion of the first threaded structure 137 is embedded in the first connecting hole 131e, and another portion of the first threaded structure 137 is embedded in the first through hole 1174.

[0280] The first threaded structure 137 is partially embedded in the first wall 1172, and the first wall 1172 can also provide positioning and support for the first threaded structure 137, so that the first threaded structure 137 can better maintain firm connection with the corresponding first terminal 1311 and second terminal 1312, and provide protection for stable connection with external electrical connection structure.

[0281] In some embodiments, as shown in FIGS. 4-6, the extension line of the central axis of the first connecting hole 131e does not interfere with the yoke 122.

[0282] In some embodiments, as shown in FIGS. 4-6, the extension line of the central axis of the first connecting hole 131e does not interfere with the yoke 122.

[0283] In this way, the installation of the first threaded structure 137 and its cooperation with the external threaded structure will not interfere with the yoke 122, and will not affect the realization of their respective structures and functions.

[0284] In some embodiments, as shown in FIGS. 4-6, the insulating support 11 includes two first supporting portions 117 arranged at intervals, the first terminal 1311 is arranged in one of the first supporting portions 117, and the second terminal 1312 is arranged in the other first supporting portion 117.

[0285] The first terminal 1311 and the second terminal 1312 are supported by the respective independent first supporting portions 117, are structurally distinguished from each other, and can better guarantee the insulation requirement between the first terminal 1311 and the second terminal 1312.

[0286] In some embodiments, as shown in FIGS. 7-9, the first supporting portion 117 is provided with a first accommodating hole 1171 corresponding to the position of the first connecting hole 131e, the first accommodating hole 1171 communicates with the first connecting hole 131e, and the first accommodating hole 1171 is used to adapt to accommodate the portion of the fastener 422 that passes out of the first connecting hole 131e.

[0287] Thus, when the first terminal 1311 and the second terminal 1312 are locked with the external electrical connection structure by the fastener 422, the part of the fastener 422 that passes through the first connecting hole 131e can be accommodated in the internal space of the first supporting portion 117, and the part of the fastener 422 does not protrude from the insulating support 11, thereby better improving the insulation performance between the fastener 422 and the adjacent electrical component 12 and reducing the risk of electrical misconnection caused by the protrusion of the fastener 422.

[0288] In specific embodiments, as shown in FIGS. 8, 9 and 10, along the axial direction of the first connecting hole 131e, the first accommodating hole 1171 is a blind hole, that is, the hole bottom of the first accommodating hole 1171 is closed and the hole opening of the first accommodating hole 1171 is adapted to pass through the fastener 422.

[0289] In some embodiments, as shown in FIGS. 9, 10 and 11, the first accommodating hole 1171 penetrates through the side of the first supporting portion 117 away from the first end wall 115.

[0290] In the present embodiment, the first accommodating hole 1171 is a through hole provided in the first supporting portion 117, and the hole opening of the through hole is arranged away from the first end wall 115 and penetrates through the first supporting portion 117, that is, the hole opening of the first accommodating hole 1171 is away from the first end wall 115 and communicates with the external environment of the first supporting portion 117.

[0291] Thus, along the direction intersecting the axial direction of the first connecting hole 131e, such as along the radial direction of the first connecting hole 131e, the first accommodating hole 1171 penetrates through the first supporting portion 117, which can not only maintain the communication between the first accommodating hole 1171 and the outside environment, but also facilitate the observation or operation of the connecting operation of the fastener 422 by personnel or tools through the first accommodating hole 1171 during operation.

[0292] In some embodiments, as shown in FIGS. 9, 10 and 11, the first supporting portion 117 includes a first wall 1172, and the first terminal 1311 and the second terminal 1312 are attached to the first wall 1172. The first connecting surface 131a and the second connecting surface 131b protrude from the first wall 1172 along the axial direction of the first connecting hole 131e, and the first wall 1172 is provided with a first through hole 1174 communicating with the first connecting hole 131e and the first accommodating hole 1171.

[0293] In the present embodiment, the first supporting portion 117 comprises a first wall 1172, the first terminal 1311 and the second terminal 1312 are attached to the corresponding first wall 1172, the first wall 1172 is provided with a first through hole 1174 to communicate the first connecting hole 131e and the first accommodating hole 1171, so that the end of the fastener 422 sequentially passes through the first connecting hole 131e and the first through hole 1174 and then extends into the first accommodating hole 1171.

[0294] In some embodiments, as shown in FIGS. 9, 10 and 11, at least one of the first through hole 1174 and the first connecting hole 131e is provided with a first threaded structure 137, the first threaded structure 137 has a first threaded hole 1371 penetrating the first connecting hole 131e, the first threaded hole 1371 has an internal thread for matching the external thread of the fastener 422.

[0295] In this way, the first terminal 1311 and the second terminal 1312 are respectively provided with the first threaded structure 137, the first threaded structure 137 has the first threaded hole 1371 which can cooperate with the fastener 422 such as a bolt or a screw outside, so that the first terminal 1311 and the second terminal 1312 can be connected and locked with the external electrical connection structure through the threaded fastener 422.

[0296] It can be understood that at least one of the first through hole 1174 and the first connecting hole 131e is provided with the first threaded structure 137. For example, the first through hole 1174 is provided with the first threaded structure 137; or the first connecting hole 131e is provided with the first threaded structure 137; or both the first through hole 1174 and the first connecting hole 131e are provided with the first threaded structure 137, wherein the first threaded structures 137 in the first through hole 1174 and the first connecting hole 131e can be the same threaded structure or different threaded structures.

[0297] In specific embodiments, as shown in FIGS. 9, 10 and 11, along the axial direction of the first connecting hole 131e, part of the first threaded structure 137 is embedded in the first connecting hole 131e, and another part of the first threaded structure 137 is embedded in the corresponding first through hole 1174.

[0298] In this way, part of the first threaded structure 137 is embedded in the first wall 1172, and the first wall 1172 can also provide positioning and support for the first threaded structure 137, so that the first threaded structure 137 can better maintain firm connection with the corresponding first terminal 1311 and second terminal 1312, and provide protection for stable connection with the external electrical connection structure.

[0299] In some embodiments, the first threaded structure 137 is a nut for mating with an M3 bolt. The M3 bolt is a bolt with a standard size specification, and "M3" means that the nominal diameter of the bolt is 3 mm. In actual applications, the outer diameter of the M3 bolt is about 3 mm, and the size of the threaded portion also has a corresponding design standard and size. The nut for mating with the M3 bolt is a nut that is used in combination with the M3 bolt.

[0300] It should be noted that in other embodiments, the first threaded structure 137 can also be a nut that is adapted to other types of fasteners 422. When designing, a suitable first threaded structure 137 can be selected to lock the external electrical connection structure and the first terminal 1311 and the second terminal 1312 according to specific connection requirements. The specific model of the first threaded structure 137 is not uniquely limited in the present application.

[0301] In some embodiments, as shown in FIGS. 9, 10 and 11, the first supporting portion 117 further includes a second wall 1173 protruding from the second surface 114 in the first direction. The second wall 1173 is located on the side of the first wall 1172 facing the winding portion 112 in the axial direction of the first connecting hole 131e. The first wall 1172 and the second wall 1173 are spaced apart, and the first accommodating hole 1171 is located between the first wall 1172 and the second wall 1173.

[0302] In the present embodiment, the first supporting portion 117 includes the first wall 1172 and the second wall 1173 spaced apart in the axial direction of the first connecting hole 131e. The first terminal 1311 and the second terminal 1312 are attached to the corresponding first wall 1172. The space between the first wall 1172 and the second wall 1173 forms the first accommodating hole 1171. The first wall 1172 is provided with a first through hole 1174 to communicate the first connecting hole 131e and the first accommodating hole 1171, so that the end of the fastener 422 sequentially passes through the first connecting hole 131e and the first through hole 1174 and then extends into the first accommodating hole 1171.

[0303] In some embodiments, as shown in FIGS. 9, 10 and 11, the first supporting portion 117 further includes two third walls 1175 protruding from the second surface 114 in the first direction. In the radial direction of the first connecting hole 131e, the two third walls 1175 are spaced apart and connected to the first wall 1172 and the second wall 1173. The first wall 1172, the second wall 1173, the two third walls 1175 and part of the second surface 114 surround to form the first accommodating hole 1171.

[0304] Thus, by setting two third walls 1175 to connect the first wall 1172 and the second wall 1173, the cross-section of the first support portion 117 along the axial direction of the first connecting hole 131e is approximately "U"-shaped, so that the bottom of the first receiving hole 1171 is closed along the axial direction of the first connecting hole 131e, and the first receiving hole 1171 extends through the external space along the radial direction of the first connecting hole 131e. At the same time, the third walls 1175 connecting the first wall 1172 and the second wall 1173 at intervals can also improve the structural strength of the first support portion 117 and improve the support stability and reliability of the corresponding first terminal 1311 and second terminal 1312.

[0305] In some embodiments, as shown in Figures 3, 7 and 11, the yoke 122 is provided with a slot 1222 that passes through the yoke 122 in a first direction at the position corresponding to the first support portion 117. The slot 1222 communicates with the cavity 1221, and at least a portion of the first support portion 117 is engaged in the slot 1222.

[0306] The yoke 122 is provided with a bayonet 1222. Along the first direction, i.e., along the radial direction of the first connecting hole 131e, and also along the thickness direction of the yoke 122, the bayonet 1222 penetrates the yoke 122, connecting the internal cavity 1221 of the yoke 122 with the external environment. Part or all of the first support portion 117 is inserted into the bayonet 1222, allowing the first support portion 117 to protrude from the side of the yoke 122 away from the second surface 114. This ensures that the arrangement of the first support portion 117, the first terminal 1311, and the second terminal 1312 does not interfere with the assembly of the yoke 122 and the insulating support 11. Simultaneously, the bayonet 1222, in conjunction with the first support portion 117, can assist in the positioning of the assembly between the yoke 122 and the insulating support 11, improving assembly efficiency and stability.

[0307] In some embodiments, as shown in Figures 3, 7 and 11, along the axial direction of the first connecting hole 131e, the bayonet 1222 passes through the edge of the yoke 122, the first wall 1172 is located outside the bayonet 1222 and abuts against the edge of the yoke 122, and the third wall 1175 and the second wall 1173 are both located inside the bayonet 1222.

[0308] In this embodiment, the notch 1222 is a notch provided on the edge of the yoke 122. The notch 1222 has a simple structure and a simple forming method. The size of the first wall 1172 of the first support part 117 is larger than the size of the opening of the notch 1222, so that the first wall 1172 is supported on the edge of the yoke 122. The second wall 1173 and the third wall 1175 are adapted to be inserted into the notch 1222.

[0309] In some embodiments, as shown in FIG. 7 and FIG. 11, the second wall 1173 protrudes from the portion of the surface of the yoke 122 facing away from the first end wall 115 by a length L1 along the axial direction of the first connecting hole 131e, the thickness of the second wall 1173 is L2, and the minimum distance between the hole edge of the first through hole 1174 and the hole opening of the first accommodating hole 1171 is L3, wherein the sum of L1, L2, and L3 is greater than 3 mm.

[0310] When the first terminal 1311 and the second terminal 1312 are connected to an external electrical connection structure through the adapted fastener 422, part of the fastener 422 is located in the first accommodating hole 1171, and the fastener 422 is in air contact with the yoke 122 through the hole opening of the first accommodating hole 1171. Thus, the spacing distance between the fastener 422 and the yoke 122 needs to meet the electrical requirement that the creepage distance is greater than 3 mm, wherein the creepage position between the yoke 122 and the fastener 422 includes the portion of the second wall 1173 protruding from the portion of the surface facing away from the second surface 114, the thickness portion of the second wall 1173 along the axial direction of the first connecting hole 131e, and the portion between the hole edge of the first through hole 1174 and the hole opening of the first accommodating hole 1171. Thus, the size L1 of the portion of the second wall 1173 protruding from the portion of the surface facing away from the second surface 114, the thickness size L2 of the second wall 1173 along the axial direction of the first connecting hole 131e, and the minimum distance size L3 between the hole edge of the first through hole 1174 and the hole opening of the first accommodating hole 1171 are greater than 3 mm, so that the creepage distance between the fastener 422 and the yoke 122 meets the requirement that the creepage distance is greater than 3 mm.

[0311] In specific embodiments, the creepage distance between the fastener 422 and the yoke 122 can be 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, etc., or when the first conductive member 133 and the second conductive member 134 are connected to a high-voltage circuit, the creepage distance between the fastener 422 and the yoke 122 can be 9.5 mm, 10 mm, 11 mm, or even larger. Here, the sizes of the various structures related to the creepage distance between the fastener 422 and the yoke 122 are not uniquely limited, and during manufacturing, the various parts are designed to meet the corresponding functional requirements according to specific insulation requirements.

[0312] In some embodiments, as shown in FIG. 7 to FIG. 9 and FIG. 15, the first conductive member 133 further includes a first wiring portion 1321 exposed to the surface of the insulating support 11, and the second conductive member 134 further includes a second wiring portion 1322 exposed to the surface of the insulating support 11, wherein the first wiring portion 1321 and the second wiring portion 1322 are spaced apart and connected to opposite ends of the coil 121, respectively.

[0313] Thus, the first conductive member 133 further comprises a first wiring portion 1321, and the second conductive member 134 further comprises a second wiring portion 1322, both of which are exposed on the surface of the insulation, and both of which are connected to the two ends of the coil 121, so that the coil 121 can be connected to an external power supply through the first conductive member 133 and the second conductive member 134, and the external power supply supplies power to the coil 121.

[0314] In this embodiment, after the coil 121 is wound around the winding portion 112, the two ends of the coil 121 can be connected to the corresponding first wiring portion 1321 and second wiring portion 1322 in the form of welding, crimping, or winding.

[0315] In some embodiments, as shown in FIGS. 7-9, the first wiring portion 1321 and the second wiring portion 1322 are protrudingly arranged on the first surface 113 and spaced apart from the winding portion 112 along a direction parallel or intersecting the first direction.

[0316] In this embodiment, the first surface 113 of the first end wall 115 faces the winding portion 112, and the first wiring portion 1321 and the second wiring portion 1322 are protrudingly arranged on the first surface 113 and spaced apart from the winding portion 112, so that the two wiring portions are spaced apart from the coil 121, that is, except for the two ends of the coil 121 being connected to the first wiring portion 1321 and the second wiring portion 1322, respectively, other positions of the coil 121 are not in contact with the two wiring portions. On this basis, the first terminal 1311 and the second terminal 1312 are located on the other side of the insulation support 11, and the first terminal 1311 and the second terminal 1312 are located on different sides of the insulation support 11 from the first wiring portion 1321 and the second wiring portion 1322, and the first wiring portion 1321 and the second wiring portion 1322 are arranged towards the coil 121. Such a layout is conducive to distinguishing the wiring portion connected to the coil 121 and the connection terminal 421 connected to the external electrical connection structure in space, facilitating the operation of internal connection and external connection on different surfaces of the insulation support 11, and also helps to isolate the internal and external electrical connections and reduce the interference of external factors on the internal connection.

[0317] In some embodiments, along the first direction, the first surface 113 is concavely provided with two sunken platforms 1131, and each of the two sunken platforms 1131 is formed with an empty space 1132 between the winding portion 112, the first wiring portion 1321 is protrudingly arranged on one sunken platform 1131, and the second wiring portion 1322 is protrudingly arranged on the other sunken platform 1131, and the two ends of the coil 121 are connected to the corresponding first wiring portion 1321 or second wiring portion 1322 in the corresponding empty space 1132.

[0318] In the embodiment, the first surface 113 is recessed along the axial direction of the coil 121 to form a sunken portion 1131, and the sunken portion 1131 is recessed along the axial direction of the coil 121 relative to other portions of the first surface 113, so that a gap structure, i.e., an avoidance position 1132, is formed between the sunken portion 1131 and the winding portion 112. The end of the coil 121 extends into the avoidance position 1132 to be connected to the corresponding first connecting portion 1321 or second connecting portion 1322. In this way, the portion of the enameled wire connected to the first connecting portion 1321 and the second end connecting portion is not in contact with other positions of the coil 121, thereby reducing the risk of abrasion of the surface insulation paint layer of the coil 121 due to contact and friction with other positions of the coil 121 after the end of the coil 121 is drawn out.

[0319] In specific embodiments, as shown in FIGS. 7, 9, and 12, along the axial direction of the coil 121, two sunken portions 1131 are respectively arranged on opposite sides of the winding portion 112. One end of the coil 121 is drawn out from one side of the winding portion 112 and extends to the position of the sunken portion 1131 on the corresponding side to be connected to the first connecting portion 1321 in the corresponding avoidance position 1132. The other end of the coil 121 is drawn out from the other side of the winding portion 112 and extends to the position of the sunken portion 1131 on the corresponding side to be connected to the second connecting portion 1322 in the corresponding avoidance position 1132. In this way, the two ends of the coil 121 are connected to the two connecting portions from the two sides of the winding portion 112 without interfering with each other.

[0320] In some embodiments, as shown in FIGS. 7, 9, and 15, the first connecting portion 1321 and the second connecting portion 1322 are respectively provided with a plurality of clamping grooves 1325. The coil 121 is wound around the corresponding first connecting portion 1321 or second connecting portion 1322 at a position between the clamping grooves 1325 and the surface of the insulating support 11.

[0321] In the embodiment, the two ends of the coil 121 are respectively wound and connected to the corresponding first connecting portion 1321 and second connecting portion 1322. The clamping grooves 1325 are arranged on the first connecting portion 1321 and the second connecting portion 1322, which can stop the wire body from falling off, thereby enabling the wire body to be reliably wound around the first connecting portion 1321 or the second connecting portion 1322.

[0322] Alternatively, in other embodiments, at least part of the coil 121 wound around the first connecting portion 1321 or the second connecting portion 1322 is clamped into the corresponding clamping groove 1325. In this way, the wire wound in the clamping groove 1325 is effectively limited from moving, thereby enabling the wire body to be reliably wound around the first connecting portion 1321 or the second connecting portion 1322.

[0323] In some embodiments, the first conductive member 133 further comprises a first intermediate connecting portion 131c embedded in the interior of the first end wall 115, the first terminal 1311 is connected to one end of the first intermediate connecting portion 131c, and the first wiring portion 1321 is connected to the other end of the first intermediate connecting portion 131c; the second conductive member 134 further comprises a second intermediate connecting portion 131d embedded in the interior of the first end wall 115, the second terminal 1312 is connected to one end of the second intermediate connecting portion 131d, and the second wiring portion 1322 is connected to the other end of the second intermediate connecting portion 131d.

[0324] In the present embodiment, as shown in FIGS. 7, 9 and 15, the first intermediate connecting portion 131c in the first conductive member 133 is embedded in the interior of the insulating support 11, and the second intermediate connecting portion 131d in the second conductive member 134 is embedded in the interior of the insulating support 11, so that the first conductive member 133 and the second conductive member 134 can be stably and firmly connected to the insulating support 11 through the respective intermediate connecting portions, so that the first conductive member 133 and the second conductive member 134 are almost unable to displace relative to the insulating support 11, and the first terminal 1311 is connected to one end of the first intermediate connecting portion 131c, and the second terminal 1312 is connected to one end of the second intermediate connecting portion 131d, and the first conductive member 133 and the second conductive member 134 penetrate through the insulating support 11, from the spatial structure, the first conductive member 133 and the second conductive member 134 are inserted into the insulating support 11, and the end portions are drawn out of the insulating support 11 as connecting portions for electrical connection with the outside, so that the current in the relay 10 can be stably and reliably transmitted through the first conductive member 133 and the second conductive member 134, and the intermediate connecting portion is embedded in the interior of the insulating support 11, so that it is isolated from the surrounding conductive member 13 or other possible conductive components, thereby also reducing the risk of electrical failure of the entire system.

[0325] In some embodiments, as shown in FIGS. 9 and 15, the first terminal 1311 and the first wiring portion 1321 are integrally and bendably connected with the first intermediate connecting portion 131c, and the second terminal 1312 and the second wiring portion 1322 are integrally and bendably connected with the second intermediate connecting portion 131d.

[0326] The first terminal 1311 and the second terminal 1312 are integrally and bendably connected with the first intermediate connecting portion 131c and the second intermediate connecting portion 131d, respectively, so that during processing and manufacturing, there is no need to set additional components, and the first terminal 1311 and the second terminal 1312 can be directly formed by bending the corresponding intermediate connecting portions, which helps to reduce the manufacturing cost while ensuring reliable installation and connection.

[0327] Exemplarily, one end of the first intermediate connecting portion 131c is bent and extended from the surface of the first end wall 115 to form the first terminal 1311, the other end of the first intermediate connecting portion 131c is bent and extended from the surface of the first end wall 115 to form the first connecting portion 1321, one end of the second intermediate connecting portion 131d is bent and extended from the surface of the first end wall 115 to form the second terminal 1312, the other end of the second intermediate connecting portion 131d is bent and extended from the surface of the first end wall 115 to form the second connecting portion 1322.

[0328] It can be understood that the integral bending connection can refer to bending only once, or can also be bent multiple times, such as twice, etc.

[0329] In some embodiments, as shown in FIGS. 5, 7 and 12, the relay 10 further includes a main body 14 connected to the insulating support 11, the electric element 12 further includes a first contact 124 and a second contact 125 provided on the main body 14, the conductive element 13 further includes a third conductive element 135 electrically connected to the first contact 124 and a fourth conductive element 136 electrically connected to the second contact 125, the third conductive element 135 includes a third terminal 1313 exposed to the surface of the insulating support 11, and the fourth conductive element 136 includes a fourth terminal 1314 exposed to the surface of the insulating support 11 and spaced apart from the third terminal 1313; wherein the third terminal 1313 has a third connecting surface 132a, and the fourth terminal 1314 has a fourth connecting surface 132b, the third connecting surface 132a and the fourth connecting surface 132b are used to contact and electrically connect with an external electrical connection structure, so that the third conductive element 135 and the fourth conductive element 136 are connected to an external control circuit.

[0330] In the present embodiment, the relay 10 further includes a main body 14 fixedly connected to the insulating support 11 and at least partially provided on the side of the coil 121, and a plurality of contacts are provided on the main body 14, which are connected to an external circuit to connect the relay 10 into the corresponding circuit. The contacts generally include movable contacts and stationary contacts, the stationary contacts are generally fixed on the base or support of the relay 10, such as in the present embodiment, the stationary contacts can be fixed on the main body 14 or the insulating support 11, and the position of the stationary contacts is relatively stable, while the movable contacts are connected to the armature or other movable components and can move when the relay 10 operates. Exemplarily, when the relay 10 is an electromagnetic relay 10, the stationary contacts are fixed on the relay 10, and the movable contacts are connected to the armature through a resilient spring sheet, when the armature is attracted by the magnetic field generated by the coil 121, the movable contacts will move with the movement of the armature, thereby contacting or separating from the stationary contacts, thereby realizing the transmission of signals or the on-off control of the related circuit, etc.

[0331] In the embodiment, the main body 14 is provided with a first contact 124 and a second contact 125, the first contact 124 can be used as a current input point and connected to a positive pole or a current output pole of an external electric connection structure, the second contact 125 can be used as a current output point and connected to a negative pole or a current input pole of an external circuit, the first contact 124 can be a moving contact or a stationary contact, and the second contact 125 can be a moving contact or a stationary contact.

[0332] In the embodiment, the conductive member 13 further comprises a third conductive member 135 and a fourth conductive member 136, the first contact 124 and the second contact 125 are connected to the third conductive member 135 and the fourth conductive member 136, and the third terminal 1313 provided on the third conductive member 135 and the fourth terminal 1314 provided on the fourth conductive member 136 are exposed to the insulating support 11, and the third terminal 1313 and the fourth terminal 1314 are in contact with each other and electrically connected to an external electric connection structure, and the first contact 124 and the second contact 125 can also be electrically connected to the external electric connection structure by direct contact, without the need of an intermediate connecting component, and the connection mode and operation are simpler, and the connection reliability and stability are better.

[0333] It can be understood that the third terminal 1313 and the fourth terminal 1314 are used to connect to an external electric connection structure, the third terminal 1313 has a third connecting surface 132a, and the fourth terminal 1314 has a fourth connecting surface 132b, the third connecting surface 132a and the fourth connecting surface 132b are used to contact and electrically connect to each other with an external electric connection structure, wherein the contact and electrical connection to each other means that the third connecting surface 132a and the fourth connecting surface 132b are directly in contact with the corresponding electric connection structure of the external structure, and the electrical connection is realized by the direct contact, and the current is directly transmitted between the two surfaces in contact with each other. In specific examples, the third connecting surface 132a and the fourth connecting surface 132b can be directly connected to the corresponding external electric connection structure by plug-in, bonding, welding, bolt locking, clamping, etc.

[0334] In some embodiments, as shown in FIG. 7 and FIG. 11 to FIG. 13, the third connecting surface 132a and the fourth connecting surface 132b are both flat surfaces.

[0335] In this way, the third connecting surface 132a and the fourth connecting surface 132b are both flat surfaces, which can provide a larger contact area, so that a larger electrical contact area can be obtained when in contact with the corresponding electric connection structure, thereby improving the stability and reliability of the electrical connection.

[0336] In some embodiments, as shown in FIG. 7 and FIG. 11-13, the third connecting surface 132a is the largest surface of the exposed surfaces of the third terminal 1313, and the fourth connecting surface 132b is the largest surface of the exposed surfaces of the fourth terminal 1314.

[0337] The largest surface of the exposed surfaces of the third terminal 1313 to the surface of the insulating support 11 is taken as the third connecting surface 132a, and the largest surface of the exposed surfaces of the fourth terminal 1314 to the surface of the insulating support 11 is taken as the fourth connecting surface 132b, so that the third terminal 1313 and the fourth terminal 1314 can provide as large an electrical contact area as possible to improve the stability and reliability of the electrical connection.

[0338] In some embodiments, the electrical gap between the third terminal 1313 and the fourth terminal 1314 is greater than 3 mm to meet the requirements of electrical safety.

[0339] For example, the electrical gap between the third terminal 1313 and the fourth terminal 1314 can be 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, etc., or when the third conductive member 135 and the fourth conductive member 136 are connected to the high-voltage circuit, the electrical gap between the third terminal 1313 and the fourth terminal 1314 can be 9.5 mm, 10 mm, 11 mm, or even larger.

[0340] Alternatively, in other embodiments, an insulating portion can also be provided between the third terminal 1313 and the fourth terminal 1314 to separate them and meet the requirement that the creepage distance between the third terminal 1313 and the fourth terminal 1314 is greater than 3 mm.

[0341] In some embodiments, as shown in FIG. 7 and FIG. 11-13, the insulating support 11 further includes a second end wall 116, which is connected to the other end of the winding portion 112 on the other side of the winding portion 112 in the first direction, the second end wall 116 is located in the cavity 1221, the coil 121 is arranged between the first end wall 115 and the second end wall 116, the third conductive member 135 and the fourth conductive member 136 are embedded in the second end wall 116, and the third terminal 1313 and the fourth terminal 1314 protrude from the second end wall 116.

[0342] In the present embodiment, the third and fourth conductive members 135 and 136 are embedded in the second end wall 116, which provides mounting positions for the third and fourth conductive members 135 and 136, and is located at the other side of the winding portion 112 opposite to the first end wall 115. The coil 121 is wound on the winding portion 112 between the first and second end walls 115 and 116. In this way, the third and fourth conductive members 135 and 136 do not affect the arrangement of the coil 121. In addition, the third and fourth terminals 1313 and 1314 protrude from the first end wall 115 to the outside of the cavity 1221, and do not affect the arrangement of the coil 121.

[0343] In some embodiments, as shown in FIGS. 7 and 11-13, the second end wall 116 has a third surface 118 facing the winding portion 112. In the first direction, neither the third terminal 1313 nor the fourth terminal 1314 protrudes beyond the third surface 118.

[0344] In terms of space, the third surface 118 faces the winding portion 112, and the third and fourth terminals 1313 and 1314 are located on the side of the second end wall 116 away from the winding portion 112. In this way, the third and fourth terminals 1313 and 1314 do not interfere with the winding of the coil 121 at all in terms of space.

[0345] In some embodiments, as shown in FIGS. 7 and 11-13, the second end wall 116 further has a fourth surface 1161 arranged in the first direction away from the winding portion 112. The third and fourth terminals 1313 and 1314 protrude from the fourth surface 1161 in a direction parallel or intersecting the first direction.

[0346] Thus, the second end wall 116 further has a fourth surface 1161 facing away from the winding portion 112, and the third terminal 1313 and the fourth terminal 1314 are protrudingly arranged on the fourth surface 1161. The fourth surface 1161 is a surface in the front-rear direction of the coil 121 (the direction indicated by the arrow F1 in FIG. 7), and the third terminal 1313 and the fourth terminal 1314 are led out from the surface of the insulating support 11 in the front space or the rear space of the coil 121. With the axial direction of the coil 121, i.e., the first direction, as the reference direction, when the relay 10 needs to be installed in the housing 41 of a specific power distribution device, and the installation direction of the relay 10 is the axial direction of the coil 121, each side surface of the relay 10 along the axial direction of the coil 121 can be provided with some connecting structures to cooperate with the connecting structures provided on the housing 41 to achieve stable and firm installation of the relay 10 in the housing 41. Thus, the third terminal 1313 and the fourth terminal 1314 are led out from the side surface perpendicular to the coil 121, and the third terminal 1313 and the fourth terminal 1314 can better avoid other connecting structures, thereby reducing the risk of interference with the installation of the relay 10 and helping to improve the assembly efficiency.

[0347] In some embodiments, as shown in FIGS. 8, 12, and 13, the insulating support 11 further includes a second supporting portion 119, which is located outside the accommodating cavity 1221 and connected to the second end wall 116. The third terminal 1313 and the fourth terminal 1314 are arranged on the second supporting portion 119.

[0348] Thus, by arranging the second supporting portion 119, the third terminal 1313 and the fourth terminal 1314 can be supported, and the risk of affecting the stability of the electrical connection due to the suspension of the third terminal 1313 and the fourth terminal 1314 is reduced.

[0349] The shape of the second supporting portion 119 can be various, such as a cuboid shape, a cylindrical shape, etc. The second supporting portion 119 can be connected to the insulating support 11 or integrally formed with the insulating support 11. For example, the second supporting portion 119 can be a protruding portion arranged on the side surface of the insulating support 11.

[0350] In specific embodiments, the insulating support 11 includes a second supporting portion 119, and the third terminal 1313 and the fourth terminal 1314 are arranged on the second supporting portion 119. That is, the insulating support 11 is provided with one second supporting portion 119, and the third terminal 1313 and the fourth terminal 1314 are supported by the same second supporting portion 119.

[0351] In other embodiments, the insulating support 11 can also include two second supporting portions 119 arranged at intervals, the third terminal 1313 is arranged in one of the second supporting portions 119, and the fourth terminal 1314 is arranged in the other second supporting portion 119. That is, the insulating support 11 is provided with two second supporting portions 119, the third terminal 1313 is supported by one of the second supporting portions 119, and the fourth terminal 1314 is supported by the other second supporting portion 119.

[0352] In some embodiments, as shown in FIGS. 8, 12 and 13, the second supporting portion 119 is connected to the edge portion of the second end wall 116.

[0353] The second supporting portion 119 is connected to the second end wall 116, and the second supporting portion 119 can be a partial structure of the insulating support 11. The second supporting portion 119 is arranged at the edge position of the second end wall 116, and the third terminal 1313 and the fourth terminal 1314 can be arranged at the edge position of the second end wall 116 correspondingly.

[0354] In some embodiments, as shown in FIGS. 8, 12 and 13, in the first direction, the second supporting portion 119 does not protrude beyond the third surface 118.

[0355] In space, the second supporting portion 119 is arranged away from the winding portion 112, and the second supporting portion 119 is entirely located on the side of the second end wall 116 away from the winding portion 112, so that the second supporting portion 119 does not interfere with the winding of the coil 121 at all in space.

[0356] In some embodiments, as shown in FIGS. 8, 12 and 13, the second supporting portion 119 protrudes beyond the second end wall 116 in the first direction, and the third terminal 1313 and the fourth terminal 1314 extend out of the second supporting portion 119 in a direction perpendicular to the first direction from the side of the second supporting portion 119 away from the winding portion 112.

[0357] In some embodiments, as shown in FIGS. 8, 12, 13 and 16, the third terminal 1313 is further provided with a second connecting hole 132e penetrating through the third connecting surface 132a, and the fourth terminal 1314 is further provided with a second connecting hole 132e penetrating through the fourth connecting surface 132b. The second connecting hole 132e is used for adaptive connection with the fastener 422, and the third terminal 1313 and the fourth terminal 1314 are locked with the adaptive fastener 422 through the second connecting hole 132e and the external electrical connection structure.

[0358] The third terminal 1313 and the fourth terminal 1314 are respectively provided with a second connecting hole 132e, and the third terminal 1313 and the fourth terminal 1314 are matched with the fastener 422 through the second connecting hole 132e to be adaptively connected and locked with the external electrical connection structure, the connection structure is simple, and meanwhile the fastener 422 can provide sufficient connecting force to make the third connecting surface 132a and the fourth connecting surface 132b keep close contact with the corresponding external electrical connection structure, so as to establish reliable and stable electrical connection.

[0359] In some embodiments, the extension line of the central axis of the second connecting hole 132e does not interfere with the main body part 14.

[0360] In some embodiments, the extension line of the central axis of the second connecting hole 132e does not interfere with the main body part 14.

[0361] In this way, the fastener 422 does not interfere with the main body part 14 when connected to the second connecting hole 132e, and does not affect the realization of the structure and function of each other.

[0362] In some embodiments, as shown in FIGS. 12-14 and 16, the second supporting part 119 is provided with a second accommodating hole 1191 at a position corresponding to the second connecting hole 132e, the second accommodating hole 1191 communicates with the second connecting hole 132e, and the second accommodating hole 1191 is used to accommodate the part of the fastener 422 that penetrates out of the second connecting hole 132e.

[0363] When the third terminal 1313 and the fourth terminal 1314 are adaptively connected and locked with the external electrical connection structure by using the fastener 422, the part of the fastener 422 that penetrates out of the second connecting hole 132e can be accommodated in the internal space of the second supporting part 119, and this part of the fastener 422 is not exposed relative to the insulating support 11, so that the insulation performance between the fastener 422 and the adjacent electrical part 12 can be better improved, and the risk of electrical misconnection caused by the protrusion of the fastener 422 can be reduced.

[0364] In some embodiments, as shown in FIGS. 12, 13 and 14, the second accommodating hole 1191 penetrates through the side of the second supporting part 119 away from the second end wall 116.

[0365] In the axial direction of the second connecting hole 132e, the second accommodating hole 1191 penetrates the second supporting portion 119, so that the second accommodating hole 1191 can be in communication with the outside, facilitating the taking out of the component after injection molding, and facilitating the observation or operation of the connecting operation of the fastener 422 by personnel or tools through the second accommodating hole 1191 during operation.

[0366] In specific embodiments, as shown in FIGS. 13, 14 and 16, in the axial direction of the second connecting hole 132e, the second accommodating hole 1191 is a blind hole, that is, the hole bottom of the second accommodating hole 1191 is closed, and the hole opening of the second accommodating hole 1191 is adapted to be penetrated by the fastener 422.

[0367] In some embodiments, as shown in FIGS. 12, 13 and 14, the second supporting portion 119 includes a fourth wall 1192, the third terminal 1313 and the fourth terminal 1314 are attached to the fourth wall 1192, the third connecting surface 132a and the fourth connecting surface 132b protrude from the fourth wall 1192 in the axial direction of the second connecting hole 132e, and the fourth wall 1192 is provided with a second through hole 1194 communicating the second connecting hole 132e and the second accommodating hole 1191.

[0368] The second supporting portion 119 includes a fourth wall 1192, the third terminal 1313 and the fourth terminal 1314 are attached to the corresponding fourth wall 1192, and the fourth wall 1192 is provided with a second through hole 1194 to communicate the second connecting hole 132e and the second accommodating hole 1191, so that the end of the fastener 422 extends into the first accommodating hole 1171 after sequentially penetrating the second connecting hole 132e and the second through hole 1194.

[0369] In some embodiments, as shown in FIGS. 11, 12 and 13, at least one of the second through hole 1194 and the second connecting hole 132e is provided with a second threaded structure 138, and the second threaded structure 138 has a second threaded hole 1381 penetrating the second connecting hole 132e, and the second threaded hole 1381 has an internal thread for adapting to the external thread of the fastener 422.

[0370] In this way, the second threaded structure 138 is respectively provided on the third terminal 1313 and the fourth terminal 1314, and the second threaded structure 138 has a second threaded hole 1381 which can cooperate with the fastener 422 such as a bolt or a screw outside, so that the third terminal 1313 and the fourth terminal 1314 can be cooperatively locked with the external electrical connection structure through the threaded fastener 422.

[0371] It is understandable that at least one of the second through hole 1194 and the second connecting hole 132e is provided with the second threaded structure 138. Exemplarily, the second through hole 1194 is provided with the second threaded structure 138; or, the second connecting hole 132e is provided with the second threaded structure 138; or, both the second through hole 1194 and the second connecting hole 132e are provided with the second threaded structure 138, wherein the second threaded structure 138 in the second through hole 1194 and the second connecting hole 132e can be the same threaded structure or different threaded structures.

[0372] In specific embodiments, as shown in FIGS. 11, 12 and 13, along the axial direction of the second connecting hole 132e, part of the second threaded structure 138 is embedded in the second connecting hole 132e, and another part of the second threaded structure 138 is embedded in the corresponding second through hole 1194.

[0373] Part of the second threaded structure 138 is embedded in the fourth wall 1192, which can also provide positioning and support for the second threaded structure 138, so that the second threaded structure 138 can better maintain firm connection with the corresponding third terminal 1313 and fourth terminal 1314, and provide protection for stable connection with the external electrical connection structure.

[0374] In some embodiments, the second threaded structure 138 is a nut for adapting connection with an M3 bolt.

[0375] Wherein, the M3 bolt is a bolt with a standard size specification, and “M3” represents that the nominal diameter of the bolt is 3 mm. In actual application, the outer diameter of the M3 bolt is about 3 mm, and the size of the threaded part also has corresponding design standards and sizes. The nut for adapting connection with the M3 bolt is a nut for cooperating with the M3 bolt as a group.

[0376] It should be noted that in other embodiments, the second threaded structure 138 can also be a nut adapted to other types of fasteners 422. When designing, appropriate second threaded structure 138 can be selected to lock the external electrical connection structure, the third terminal 1313 and the fourth terminal 1314 according to specific connection requirements, and the specific model of the second threaded structure 138 is not uniquely limited in the present application.

[0377] In some embodiments, as shown in FIGS. 11, 12 and 13, the second supporting portion 119 further includes a fifth wall 1193 protruding from the fourth surface 1161 in the first direction, the fifth wall 1193 is located on the side of the fourth wall 1192 facing the winding portion 112 along the axial direction of the second connecting hole 132e, the fourth wall 1192 and the fifth wall 1193 are arranged in a spaced manner, and the second accommodating hole 1191 is located between the fourth wall 1192 and the fifth wall 1193.

[0378] The second supporting portion 119 comprises a fourth wall 1192 and a fifth wall 1193 arranged in an up-down direction along the axial direction of the second connecting hole 132e, the third terminal 1313 and the fourth terminal 1314 are arranged on the corresponding fourth wall 1192, and the space between the fourth wall 1192 and the fifth wall 1193 forms a second accommodating hole 1191. The fourth wall 1192 is provided with a second through hole 1194 to communicate the second connecting hole 132e and the second accommodating hole 1191, so that the end of the fastener 422 sequentially passes through the second connecting hole 132e and the second through hole 1194 and then extends into the second accommodating hole 1191.

[0379] In some embodiments, as shown in FIGS. 11, 12 and 13, the second supporting portion 119 comprises two fourth walls 1192 and a fifth wall 1193, which are arranged on the opposite sides of the second end wall 116 along the radial direction of the second connecting hole 132e, and the third terminal 1313 and the fourth terminal 1314 are arranged on the two fourth walls 1192 respectively.

[0380] The second supporting portion 119 comprises a fourth wall 1192 and a fifth wall 1193 arranged in an up-down direction along the axial direction of the second connecting hole 132e, the third terminal 1313 and the fourth terminal 1314 are arranged on the corresponding fourth wall 1192, and the space between the fourth wall 1192 and the fifth wall 1193 forms a second accommodating hole 1191. The fourth wall 1192 is provided with a second through hole 1194 to communicate the second connecting hole 132e and the second accommodating hole 1191, so that the end of the fastener 422 sequentially passes through the second connecting hole 132e and the second through hole 1194 and then extends into the second accommodating hole 1191.

[0381] In some embodiments, as shown in FIGS. 11, 12 and 13, the second supporting portion 119 further comprises at least three sixth walls 1195 arranged on the fourth surface 1161, which are arranged in an up-down direction along the radial direction of the second connecting hole 132e and are connected to the fourth wall 1192 and the fifth wall 1193 respectively, and a fourth wall 1192, a fifth wall 1193, two adjacent sixth walls 1195 and part of the fourth surface 1161 form a second accommodating hole 1191.

[0382] The fourth wall 1192 and the fifth wall 1193 are connected by the sixth wall 1195 to improve the structural strength of the second supporting portion 119 and improve the stability and reliability of the support of the corresponding third terminal 1313 and the fourth terminal 1314.

[0383] In some embodiments, as shown in FIGS. 12, 13 and 14, the main body portion 14 is arranged on the side away from the winding portion 112, and the fifth wall 1193 is arranged in the axial direction of the second connecting hole 132e.

[0384] In the embodiment, the body part 14 is protruded from the fourth surface 1161 on the side away from the winding part 112, and the body part 14 can be made of a magnetic material, which constitutes a part of the magnetic circuit inside the relay 10.

[0385] It can be understood that in some relays 10, such as in the relay 10, the body part 14 can include a core, which, together with the yoke 122 and the armature and other components, constitutes a complete magnetic circuit, one end of the core is connected to the coil 121, such as the one end of the core is arranged in the winding part 112 of the insulating support 11 and inserted into the coil 121, the yoke 122 is arranged at one end of the core or surrounds the core, and the armature can be arranged at the other end of the core or surrounds the core, and the armature is located at the end of the magnetic circuit, so that the magnetic field can be generated from the coil 121, through the core, the yoke 122, to the armature, and then through the working air gap to the core, forming a closed loop.

[0386] In the embodiment, the second supporting part 119 is spaced apart from the body part 14 along the axis of the second connecting hole 132e, and the second supporting part 119 does not interfere with the installation of the body part 14, and at the same time, the third terminal 1313 and the fourth terminal 1314 are supported on the second supporting part 119, and are also spaced apart from the body part 14 to meet the electrical insulation requirements.

[0387] In some embodiments, as shown in FIGS. 7, 12 and 13, the third conductive part 135 further includes a first adapter part 1323 exposed to the surface of the insulating support 11, the fourth conductive part 136 further includes a second adapter part 1324 exposed to the surface of the insulating support 11, and the body part 14 is further provided with an adapter 123, the first adapter part 1323 and the second adapter part 1324 are respectively electrically connected to one end of the adapter 123, the other end of the adapter 123 is electrically connected to the first contact 124 and the second contact 125, and the adapter 123 is connected to the fifth wall 1193.

[0388] In the embodiment, the adapter 123 is arranged to adapt the first contact 124 and the third conductive part 135, and to adapt the second contact 125 and the fourth conductive part 136, so that the arrangement positions of the third conductive part 135 and the fourth conductive part 136 are more flexible, and for the first contact 124 and the second contact 125 at different positions, by arranging the adapter 123 with different structures, they can be adapted to the third conductive part 135 and the fourth conductive part 136 with arrangement positions close to each other, so that the arrangement positions of the third terminal 1313 and the fourth terminal 1314 are relatively close, facilitating the centralized connection operation of the subsequent fastener 422. Moreover, the adapter 123 is connected to the fifth wall 1193, and the fifth wall 1193 can support the adapter 123.

[0389] In some embodiments, as shown in FIG. 7, FIG. 13 and FIG. 16, the third conductive member 135 further comprises a third intermediate connecting portion 132c embedded in the interior of the second end wall 116, the third terminal 1313 is connected to one end of the third intermediate connecting portion 132c, and the first adapter portion 1323 is connected to the opposite end of the third intermediate connecting portion 132c; the fourth conductive member 136 further comprises a fourth intermediate connecting portion 132d embedded in the interior of the second end wall 116, the fourth terminal 1314 is connected to one end of the fourth intermediate connecting portion 132d, and the second adapter portion 1324 is connected to the opposite end of the second intermediate connecting portion 131d.

[0390] In this way, the third intermediate connecting portion 132c in the third conductive member 135 is embedded in the interior of the insulating support 11, and the fourth intermediate connecting portion 132d in the fourth conductive member 136 is embedded in the interior of the insulating support 11, so that the third conductive member 135 and the fourth conductive member 136 can be stably and firmly connected to the insulating support 11 through their respective intermediate connecting portions, so that the third conductive member 135 and the fourth conductive member 136 cannot be displaced relative to the insulating support 11, and the third terminal 1313 is connected to one end of the third intermediate connecting portion 132c, and the fourth terminal 1314 is connected to one end of the fourth intermediate connecting portion 132d, the third conductive member 135 and the fourth conductive member 136 pass through the insulating support 11, from the spatial structure, the third conductive member 135 and the fourth conductive member 136 are inserted into the insulating support 11, and the end part is drawn out of the insulating support 11 as a connecting portion for electrical connection with the outside, in this way, the current in the relay 10 can be stably and reliably transmitted through the third conductive member 135 and the fourth conductive member 136, and the intermediate connecting portion is embedded in the interior of the insulating support 11, so that it is isolated from the surrounding conductive members 13 or other possible conductive components, thereby also reducing the risk of electrical failure of the entire system.

[0391] In some embodiments, as shown in FIG. 7, FIG. 13 and FIG. 16, the third terminal 1313 and the first adapter portion 1323 are integrally connected by bending the third intermediate connecting portion 132c, and the fourth terminal 1314 and the second adapter portion 1324 are integrally connected by bending the fourth intermediate connecting portion 132d.

[0392] The third terminal 1313 and the third intermediate connecting part 132c are integrally bent and connected, the fourth terminal 1314 and the fourth intermediate connecting part 132d are integrally bent and connected, and the first adapter part 1323 and the second adapter part 1324 are integrally bent and connected, respectively. In the manufacturing process, no additional parts are needed. The third terminal 1313 and the fourth terminal 1314, and the first adapter part 1323 and the second adapter part 1324 can be directly bent and processed by the corresponding intermediate connecting part. This can ensure reliable installation and connection, and help reduce manufacturing costs.

[0393] For example, one end of the third intermediate connecting part 132c is bent and extended from the surface of the second end wall 116 to form the third terminal 1313. The other end of the third intermediate connecting part 132c is bent and extended from the surface of the second end wall 116 to form the first adapter part 1323. One end of the fourth intermediate connecting part 132d is bent and extended from the surface of the second end wall 116 to form the fourth terminal 1314. The other end of the fourth intermediate connecting part 132d is bent and extended from the surface of the second end wall 116 to form the second adapter part 1324.

[0394] It can be understood that the integrally bent connection can mean bending only once, or can also be bent multiple times, such as twice.

[0395] In some embodiments, the conductive part 13 is insert molded with the insulating support 11.

[0396] In this embodiment, the conductive part 13 and the insulating support 11 are integrally manufactured by a composite molding process. During manufacturing, the conductive part 13 is placed in a specific position of the injection mold, and then molten insulating support 11 manufacturing material is injected into the mold for injection molding. During the injection molding process, the molten insulating material fills the mold cavity under certain pressure and temperature, surrounds the conductive part 13, and forms the insulating support 11 after cooling and solidification. In this way, part of the structure of the conductive part 13 is tightly wrapped in the insulating support 11, and the two become an integral structure.

[0397] In this way, the conductive part 13 is insert molded in the insulating support 11, making the connection between the conductive part 13 and the insulating support 11 more secure and firm, so that the conductive part 13 can be stably connected to the insulating support 11, and the conductive part 13 is not easy to fall off or loosen. Even under the action of certain external force (such as vibration, impact), it can also remain in place, thereby helping to improve the stability and reliability of the electric energy transmission of the conductive part 13, and improving the stable transmission of the internal and external current of the relay 10.

[0398] Please refer to FIG. 3, FIG. 7 and FIG. 19-21, another embodiment of the application also provides a distribution box 40.

[0399] In the power distribution box 40 provided in the present application, the power distribution box 40 comprises a housing 41, a connecting assembly 42 and the relay 10 described above, the housing 41 is provided with a receiving groove 4121, the relay 10 is installed in the receiving groove 4121, the connecting assembly 42 comprises a plurality of connecting terminals 421 exposed on the surface of the housing 41, the first terminal 1311 and the second terminal 1312 extend out of the receiving groove 4121, the first connecting surface 131a and the surface of one connecting terminal 421 are in contact and electrically connected with each other, and the second connecting surface 131b and the surface of another connecting terminal 421 are in contact and electrically connected with each other.

[0400] In the power distribution box 40 provided in the present application, the power distribution box 40 comprises a housing 41, a connecting assembly 42 and the relay 10 described above, the housing 41 is provided with a receiving groove 4121, the relay 10 is installed in the receiving groove 4121, the connecting assembly 42 comprises a plurality of connecting terminals 421 exposed on the surface of the housing 41, the first terminal 1311 and the second terminal 1312 extend out of the receiving groove 4121, the first connecting surface 131a and the surface of one connecting terminal 421 are in contact and electrically connected with each other, and the second connecting surface 131b and the surface of another connecting terminal 421 are in contact and electrically connected with each other.

[0401] In some embodiments, as shown in FIG. 7 and FIG. 19 to FIG. 21, the first terminal 1311 is provided with a first connecting hole 131e penetrating the first connecting surface 131a, the second terminal 1312 is provided with a first connecting hole 131e penetrating the second connecting surface 131b, the connecting terminal 421 is provided with a locking hole 423, and the connecting assembly 42 further comprises a fastener 422, each connecting terminal 421 is respectively connected with the corresponding first terminal 1311 or the second terminal 1312 by the fastener 422 and the first connecting hole 131e and the locking hole 423.

[0402] In the embodiment, the first connecting hole 131e is arranged on the first terminal 1311 and the second terminal 1312 of the relay 10, and the locking hole 423 is arranged on the connecting terminal 421 of the connecting assembly 42, and the locking hole 423 is connected with the fastener 422 and the first connecting hole 131e. In this way, the first terminal 1311 and the second terminal 1312 exposed on the surface of the relay 10 are locked and connected with the connecting terminal 421 of the connecting assembly 42 arranged on the shell 41 through the fastener 422, so as to realize the electrical connection between the relay 10 in the distribution box 40 and the external electrical connection assembly 42. The relay 10 is locked and connected with the connecting terminal 421 of the connecting assembly 42 through the first terminal 1311 and the second terminal 1312, so as to establish a reliable current path between the relay 10 and the connecting terminal 421 and realize stable power and signal transmission. In addition, the first terminal 1311 and the second terminal 1312 are connected with the connecting terminal 421 through the fastener 422, without the need of using an intermediate connecting component for connection, which can effectively solve the assembly problem caused by the need of inserting the first terminal 1311 and the second terminal 1312 into the intermediate connecting component and inserting the connecting terminal 421 into the intermediate connecting component. There is almost no risk of connection instability or failure caused by deformation or damage of the connection structure between the first terminal 1311 and the second terminal 1312 and the connecting terminal 421 of the connecting assembly 42, which is beneficial to the assembly efficiency between the relay 10 and other structures in the distribution box 40. In addition, after omitting the intermediate connecting component, the overall structure of the distribution box 40 is simplified, the wiring and structure arrangement in the distribution box 40 are simpler, so as to reduce the assembly operation and reduce the cost.

[0403] In some embodiments, the fastener 422 includes an M3 bolt. The M3 bolt is a bolt with a standard size specification, and "M3" represents that the nominal diameter of the bolt is 3 mm. In actual application, the outer diameter of the M3 bolt is about 3 mm, and the size of the threaded part also has a corresponding design standard and size.

[0404] It should be noted that in other embodiments, the fastener 422 can also use other types of bolts, and appropriate bolts can be selected to lock and connect the connecting terminal 421 and the corresponding first terminal 1311 and second terminal 1312 according to specific connection requirements, and the specific model of the bolt is not uniquely limited.

[0405] In some embodiments, as shown in FIGS. 18, 20 and 21, the groove wall of the accommodating groove 4121 is spaced apart to form two first installation grooves 4122, the first terminal 1311 extends into the first installation groove 4122, and the second terminal 1312 extends into the second installation groove.

[0406] The groove wall of the accommodating groove 4121 is provided with a first mounting groove 4122, the first terminal 1311 and the second terminal 1312 led out from the surface of the relay 10 can be arranged in the first mounting groove 4122 and the second mounting groove respectively, and each connecting terminal 421 is locked with the corresponding first terminal 1311 and the second terminal 1312 at the position of the first mounting groove 4122 and the second mounting groove. In this way, the arrangement of the first mounting groove 4122 and the second mounting groove can provide mounting positions for the first terminal 1311 and the second terminal 1312, and also facilitate the positioning of the arrangement position of the connecting terminal 421 of the connecting assembly 42, so that the connecting terminal 421 and the corresponding first terminal 1311 and the second terminal 1312 can be positioned in the specific first mounting groove 4122 and the second mounting groove and locked at the specific position.

[0407] In some embodiments, as shown in FIGS. 18, 20 and 21, the housing 41 is also provided with a baffle plate 4123 corresponding to the position of the first mounting groove 4122, the baffle plate 4123 is arranged on the side of the first mounting groove 4122 along the radial direction of the first connecting hole 131e, and along the axial direction of the first connecting hole 131e, at least part of the connecting terminal 421 is located in the projection area of the baffle plate 4123.

[0408] The baffle plate 4123 is arranged on the side of the first mounting groove 4122, and along the axial direction of the first connecting hole 131e, the baffle plate 4123 has a certain size, so that the connecting terminal 421 can be partially or entirely located in the projection area of the baffle plate 4123, that is, along the axial direction of the first connecting hole 131e, part or all of the connecting terminal 421 can be shielded by the baffle plate 4123, and the baffle plate 4123 can play a protection role to reduce the adverse effects of the external environment on the first terminal 1311, the second terminal 1312 and the connecting terminal 421.

[0409] As can be understood, as shown in FIGS. 18, 20 and 21, in the embodiments in which the insulating support 11 is provided with the first supporting part 117 and the second supporting part 119, and the first supporting part 117 is provided with the first accommodating hole 1171 and the second accommodating hole 1191, and the first accommodating hole 1171 and the second accommodating hole 1191 respectively penetrate the corresponding first supporting part 117 and the second supporting part 119, the baffle plate 4123 is also provided with a through hole corresponding to the position of the first accommodating hole 1171 and the second accommodating hole 1191, to facilitate the taking out of the component after injection molding, and also to facilitate the observation or operation of the connecting operation of the fastener 422 by the personnel or tools through the corresponding accommodating hole during operation.

[0410] In some embodiments, as shown in FIGS. 18, 20 and 21, the relay 10 further comprises a yoke 122, the accommodating groove 4121 is provided with a protruding rib 4124 opposite to the groove wall of the yoke 122, at least part of the protruding rib 4124 is in abutment with the yoke 122. The protruding rib 4124 is in abutment with the yoke 122, so that a gap is formed between the yoke 122 and the groove wall of the accommodating groove 4121, which can be used for heat dissipation and glue filling.

[0411] In some embodiments, as shown in FIGS. 18, 20 and 21, the protruding rib 4124 comprises a first rib 4125 and a second rib 4126, the yoke 122 is provided with a protruding portion 1223, the protruding size of the first rib 4125 from the groove wall of the accommodating groove 4121 is greater than the protruding size of the second rib 4126 from the groove wall of the accommodating groove 4121, the first rib 4125 is in abutment with the yoke 122 at the position where the yoke 122 is located at the side of the protruding portion 1223, and the second rib 4126 is spaced apart from the protruding portion 1223.

[0412] The yoke 122 is provided with a protruding portion 1223, which can make the magnetic field more concentrated and adjust the shape of the magnetic circuit, the second rib 4126 avoids the protruding portion 1223 of the yoke 122 so as not to affect the normal magnetic conduction of the yoke 122, while the first rib 4125 can abut other positions of the yoke 122, so that the protruding portion 1223 can not be in abutment with the groove bottom of the accommodating groove 4121, and a gap can be formed between the yoke 122 and the groove wall of the accommodating groove 4121.

[0413] In some embodiments, as shown in FIGS. 18, 20 and 21, the first rib 4125 and the second rib 4126 are annular ribs, the first rib 4125 is arranged around the second rib 4126, and a glue layer 4127 is arranged in the inner side region of the first rib 4125 and the region between the first rib 4125 and the second rib 4126.

[0414] In this way, the inner side region of the first rib 4125 and the region between the first rib 4125 and the second rib 4126 can be filled with glue, when the relay 10 is installed, glue is first applied in the corresponding region, and then the relay 10 is installed in the accommodating groove 4121, before the glue solidifies, the relay 10 can move relative to the groove wall of the accommodating groove 4121 due to the fluidity of the glue, before the glue solidifies, the locking fastener 422 is locked, in this way, the relay 10 can move to reduce the risk of stress concentration, and reduce the risk of damage to the connecting structure caused by stress concentration, after the fastener 422 is locked, the glue layer 4127 solidifies, so that the relay 10 is firmly positioned and installed in the accommodating groove 4121.

[0415] In some embodiments, as shown in FIG. 18, FIG. 20 and FIG. 21, a limiting structure 4128 is further arranged between the relay 10 and the groove wall of the accommodating groove 4121, and the limiting structure 4128 is used to limit the relative movement between the relay 10 and the groove wall of the accommodating groove 4121.

[0416] By arranging the limiting structure 4128 between the relay 10 and the groove wall of the accommodating groove 4121, the presence of the limiting structure 4128 makes the relay 10 have a relatively determined installation position in the accommodating groove 4121, and reduces the risk of the relay 10 moving randomly during installation or use.

[0417] In specific embodiments, the accommodating groove 4121 and the relay 10 are matched in shape and size, the relay 10 is embedded in the accommodating groove 4121, and there is a certain gap between the relay 10 and the groove wall of the accommodating groove 4121, so that the relay 10 can have a certain movable space when the fastener 422 is locked and fastened, and the risk of stress concentration is reduced. At the same time, the limiting structure 4128 is arranged according to actual needs, for example, for a rectangular relay 10 and accommodating groove 4121, a protrusion or a groove can be arranged around the groove wall as the limiting structure 4128, and for a circular relay 10 and accommodating groove 4121, a ring-shaped limiting rib or a clamping groove 1325 and the like can be used to limit the relative movement.

[0418] In specific embodiments, the relay 10 further comprises a carrier connected to the insulating support 11, the carrier at least semi-surrounds the core of the relay 10, the relay 10 further comprises a permanent magnet, for example, the permanent magnet can be an armature, the permanent magnet is movably arranged between the core and the carrier, and the limiting structure 4128 is arranged between the carrier and the groove wall of the accommodating groove 4121, and the limiting structure 4128 is used to limit the relative movement between the carrier and the groove wall of the accommodating groove 4121.

[0419] In some embodiments, the relay 10 comprises at least one of the main positive relay 401, the main negative relay 402 and the pre-charging relay 403.

[0420] For example, the relay 10 comprises any one of the main positive relay 401, the main negative relay 402 and the pre-charging relay 403, or the relay 10 comprises any two of the main positive relay 401, the main negative relay 402 and the pre-charging relay 403, or the relay 10 comprises the main positive relay 401, the main negative relay 402 and the pre-charging relay 403.

[0421] Another embodiment of the present application further provides a battery device 200, as shown in FIG. 2, the battery device 200 comprises a battery monomer assembly 30 and the above-mentioned power distribution box 40, the power distribution box 40 is electrically connected with the battery monomer assembly 30, and the power distribution box 40 is used to control the charging and discharging of the battery device 200 and the like.

[0422] Another embodiment of the present application also provides a power consuming device, as shown in Fig. 1, which comprises the battery device 200 described above, and the battery device 200 is used to supply power to the power consuming device.

[0423] The above description of various embodiments tends to emphasize the differences between various embodiments, and the same or similar parts can be referred to each other, and will not be described herein for the sake of brevity.

[0424] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should be covered in the scope of the claims and the description of the present application. Especially, as long as there is no structural conflict, each technical feature mentioned in each embodiment can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A relay, characterized in that, include: Insulating support; Electrical components are mounted on the insulating bracket; as well as A conductive component, comprising a first conductive component and a second conductive component, wherein the first conductive component and the second conductive component are respectively embedded in the insulating bracket and electrically connected to the electrical component, the first conductive component includes a first terminal exposed on the surface of the insulating bracket, and the second conductive component includes a second terminal exposed on the surface of the insulating bracket and spaced apart from the first terminal; in The first terminal has a first connecting surface, and the second terminal has a second connecting surface. The first connecting surface and the second connecting surface are used to contact and connect with an external electrical connection structure so that the first conductive element and the second conductive element are connected to an external control circuit.

2. The relay according to claim 1, characterized in that, Both the first connecting surface and the second connecting surface are planar.

3. The relay according to claim 1 or 2, characterized in that, The first connecting surface is the surface with the largest area among all exposed surfaces of the first terminal, and the second connecting surface is the surface with the largest area among all exposed surfaces of the second terminal.

4. The relay according to any one of claims 1 to 3, characterized in that, The electrical clearance between the first terminal and the second terminal is greater than 3 mm.

5. The relay according to any one of claims 1 to 3, characterized in that, The insulating bracket is further provided with a separator between the first terminal and the second terminal, and the first terminal and the second terminal are electrically isolated by the separator.

6. The relay according to any one of claims 1 to 5, characterized in that, The relay also includes a yoke with a cavity, a portion of which is installed within the cavity of the yoke, and the first terminal and the second terminal are located outside the cavity.

7. The relay according to claim 6, characterized in that, The yoke includes a first plate and two second plates bent and connected to opposite ends of the first plate. The first plate and the two second plates surround the cavity. The first terminal and the second terminal protrude from the surface of the first plate away from the cavity, or the first terminal and the second terminal protrude from the surface of the same second plate away from the cavity.

8. The relay according to claim 6, characterized in that, The electrical component includes a coil, and the insulating support includes a winding portion and a first end wall. The coil is wound around the winding portion along a first direction. The first end wall is connected to one end of the winding portion on one side. The winding portion and the first end wall are both located within the cavity. The first conductive element and the second conductive element are embedded in the first end wall. The first terminal and the second terminal protrude from the first end wall. The first direction is the axial direction of the winding portion.

9. The relay according to claim 8, characterized in that, The first end wall has a first surface facing the winding portion, and along the first direction, neither the first terminal nor the second terminal extends beyond the first surface.

10. The relay according to claim 9, characterized in that, The first end wall also has a second surface disposed opposite to the winding portion along the first direction, and the first terminal and the second terminal protrude from the second surface in a direction parallel to or intersecting the first direction.

11. The relay according to claim 10, characterized in that, The insulating support also includes a first support portion, which is located outside the cavity and connected to the first end wall, and the first terminal and the second terminal are disposed on the first support portion.

12. The relay according to claim 11, characterized in that, The first support portion is connected to the edge of the first end wall.

13. The relay according to claim 11 or 12, characterized in that, Along the first direction, the first support portion does not extend beyond the first surface.

14. The relay according to any one of claims 11 to 13, characterized in that, The first support portion protrudes from the first end wall in a direction perpendicular to the first direction, and the first terminal and the second terminal protrude from the first support portion.

15. The relay according to any one of claims 11 to 13, characterized in that, The first support portion protrudes from the first end wall in a direction perpendicular to the first direction, and the first terminal and the second terminal protrude from the first support portion from the side of the first support portion away from the winding portion in the first direction.

16. The relay according to any one of claims 11 to 13, characterized in that, The first support portion protrudes from the first end wall in a direction perpendicular to the first direction, and the first terminal and the second terminal extend out of the first support portion in the first direction.

17. The relay according to any one of claims 11 to 13, characterized in that, The first support portion protrudes from the first end wall along the first direction, and the first terminal and the second terminal extend from the first support portion from the side of the first support portion away from the winding portion in a direction perpendicular to the first direction.

18. The relay according to claim 15, characterized in that, The first support portion includes a first wall, the first terminal and the second terminal are attached to the first wall, and the first connecting surface and the second connecting surface protrude from the first wall in a direction perpendicular to the first direction.

19. The relay according to claim 18, characterized in that, The first terminal is also provided with a first thread structure, which penetrates the first connection surface along a direction perpendicular to the first connection surface; And / or, the second terminal is further provided with a first threaded structure, which penetrates the second connection surface in a direction perpendicular to the second connection surface.

20. The relay according to claim 19, characterized in that, The first threaded structure is a nut, and the first terminal is also provided with a first connecting hole penetrating the first connecting surface. The second terminal is also provided with a first connecting hole penetrating the second connecting surface. At least a portion of the nut is embedded in the corresponding first connecting hole.

21. The relay according to claim 20, characterized in that, The first wall is also provided with a first through hole corresponding to the first connecting hole. The first through hole is coaxial with the first connecting hole. A portion of the first threaded structure is embedded in the first connecting hole, and another portion of the first threaded structure is embedded in the first through hole.

22. The relay according to claim 17, characterized in that, The first terminal is further provided with a first connecting hole through the first connecting surface, and the second terminal is further provided with a first connecting hole through the second connecting surface. The first connecting hole is used for fitting and connecting with a fastener. The first terminal and the second terminal are connected to an external electrical connection structure through the first connecting hole and the fitted fastener for locking.

23. The relay according to claim 22, characterized in that, The extension line of the central axis of the first connecting hole does not interfere with the yoke.

24. The relay according to claim 23, characterized in that, The insulating bracket includes two first support portions spaced apart, with the first terminal disposed on one of the first support portions and the second terminal disposed on the other first support portion.

25. The relay according to any one of claims 22 to 24, characterized in that, The first support portion is provided with a first receiving hole at the position corresponding to the first connecting hole. The first receiving hole is connected to the first connecting hole and is used to accommodate the portion of the fastener that protrudes from the first connecting hole.

26. The relay according to claim 25, characterized in that, The first receiving hole penetrates the side of the first support portion facing away from the first end wall.

27. The relay according to claim 25 or 26, characterized in that, The first support portion includes a first wall, the first terminal and the second terminal are attached to the first wall, the first connecting surface and the second connecting surface protrude from the first wall along the axial direction of the first connecting hole, and the first wall is provided with a first through hole communicating with the first connecting hole and the first receiving hole.

28. The relay according to claim 27, characterized in that, At least one of the first through hole and the first connecting hole is provided with a first threaded structure, the first threaded structure having a first threaded hole through the first connecting hole, the first threaded hole having an internal thread for adapting to the external thread of the fastener.

29. The relay according to claim 27, characterized in that, Along the axial direction of the first connecting hole, a portion of the first threaded structure is embedded in the first connecting hole, and another portion of the first threaded structure is embedded in the corresponding first through hole.

30. The relay according to any one of claims 27 to 29, characterized in that, The first support portion further includes a second wall protruding from the second surface along the first direction. The second wall is located on the side of the first wall facing the winding portion along the axial direction of the first connecting hole. The first wall and the second wall are spaced apart, and the first receiving hole is located between the first wall and the second wall.

31. The relay according to claim 30, characterized in that, The first support portion further includes two third walls protruding from the second surface along the first direction. Along the radial direction of the first connecting hole, the two third walls are spaced apart and connected to the first wall and the second wall. The first wall, the second wall, the two third walls and part of the second surface surround to form the first receiving hole.

32. The relay according to claim 31, characterized in that, The yoke is provided with a slot that extends through the yoke in the first direction at the position corresponding to the first support part. The slot is connected to the cavity, and at least a portion of the first support part is engaged in the slot.

33. The relay according to claim 32, characterized in that, Along the axial direction of the first connecting hole, the bayonet passes through the edge of the yoke, the first wall is located outside the bayonet and abuts against the edge of the yoke, and the third wall and the second wall are both located inside the bayonet.

34. The relay according to claim 32 or 33, characterized in that, The length of the protruding portion of the second wall from the yoke away from the second surface is L1, the thickness of the second wall along the axial direction of the first connecting hole is L2, and the minimum distance between the edge of the first through hole and the opening of the first receiving hole is L3, wherein the sum of L1, L2 and L3 is greater than 3mm.

35. The relay according to claim 19, 20, 28 or 29, characterized in that, The first threaded structure is a nut for use with M3 bolts.

36. The relay according to any one of claims 9 to 35, characterized in that, The first conductive element further includes a first wiring portion exposed on the surface of the insulating support, and the second conductive element further includes a second wiring portion exposed on the surface of the insulating support. The first wiring portion and the second wiring portion are spaced apart and respectively connected to opposite ends of the coil.

37. The relay according to claim 36, characterized in that, Along a direction parallel to or intersecting the first direction, the first wiring portion and the second wiring portion protrude from the first surface and are spaced apart from the winding portion.

38. The relay according to claim 36 or 37, characterized in that, Along the first direction, the first surface is recessed with two recessed platforms, and a clearance is formed between the two recessed platforms and the winding portion. The first wiring portion protrudes from one of the recessed platforms, and the second wiring portion protrudes from the other recessed platform. The two ends of the coil are respectively connected to the corresponding first wiring portion or the second wiring portion in the corresponding clearance.

39. The relay according to any one of claims 36 to 38, characterized in that, The first wiring portion and the second wiring portion are also provided with a plurality of slots. The coil is wound around the corresponding first wiring portion or the second wiring portion at a position between the slot and the surface of the insulating bracket, or at least a portion of the coil wound on the first wiring portion or the second wiring portion is inserted into the corresponding slot.

40. The relay according to any one of claims 36 to 39, characterized in that, The first conductive element further includes a first intermediate connecting portion, which is embedded inside the first end wall. The first terminal is connected to one end of the first intermediate connecting portion, and the first wiring portion is connected to the opposite end of the first intermediate connecting portion. The second conductive element further includes a second intermediate connection portion, which is embedded inside the first end wall. The second terminal is connected to one end of the second intermediate connection portion, and the second wiring portion is connected to the opposite end of the second intermediate connection portion.

41. The relay according to claim 40, characterized in that, The first terminal and the first wiring portion are integrally bent and connected to the first intermediate connecting portion, and the second terminal and the second wiring portion are integrally bent and connected to the second intermediate connecting portion.

42. The relay according to any one of claims 8 to 41, characterized in that, The relay further includes a main body connected to the insulating bracket. The electrical component further includes a first contact and a second contact disposed on the main body. The conductive component further includes a third conductive component electrically connected to the first contact and a fourth conductive component electrically connected to the second contact. The third conductive component includes a third terminal exposed on the surface of the insulating bracket. The fourth conductive component includes a fourth terminal exposed on the surface of the insulating bracket and spaced apart from the third terminal. in The third terminal has a third connecting surface, and the fourth terminal has a fourth connecting surface. The third connecting surface and the fourth connecting surface are used to contact and connect with an external electrical connection structure so that the third conductive element and the fourth conductive element are connected to an external control circuit.

43. The relay according to claim 42, characterized in that, Both the third connecting surface and the fourth connecting surface are planar.

44. The relay according to claim 42 or 43, characterized in that, The third connecting surface is the surface with the largest area among all exposed surfaces of the third terminal, and the fourth connecting surface is the surface with the largest area among all exposed surfaces of the fourth terminal.

45. The relay according to any one of claims 42 to 44, characterized in that, The electrical clearance between the third terminal and the fourth terminal is greater than 3 mm.

46. ​​The relay according to any one of claims 42 to 45, characterized in that, The insulating support further includes a second end wall. Along the first direction, the second end wall is connected to the other end of the winding portion on the other side of the winding portion. The second end wall is located within the cavity. The coil is disposed between the first end wall and the second end wall. The third conductive element and the fourth conductive element are embedded in the second end wall. The third terminal and the fourth terminal protrude from the second end wall.

47. The relay according to any one of claims 46, characterized in that, The second end wall has a third surface facing the winding portion, and along the first direction, neither the third terminal nor the fourth terminal extends beyond the third surface.

48. The relay according to claim 47, characterized in that, The second end wall also has a fourth surface disposed opposite to the winding portion along the first direction, and the third terminal and the fourth terminal protrude from the fourth surface in a direction parallel to or intersecting the first direction.

49. The relay according to claim 48, characterized in that, The insulating support also includes a second support portion, which is located outside the cavity and connected to the second end wall. The third terminal and the fourth terminal are disposed on the second support portion.

50. The relay according to claim 49, characterized in that, The second support portion is connected to the edge of the second end wall.

51. The relay according to claim 49 or 50, characterized in that, Along the first direction, the second support portion does not extend beyond the third surface.

52. The relay according to any one of claims 49 to 51, characterized in that, The second support portion protrudes from the second end wall along the first direction, and the third terminal and the fourth terminal extend from the second support portion from the side of the second support portion away from the winding portion in a direction perpendicular to the first direction.

53. The relay according to claim 52, characterized in that, The third terminal is also provided with a second connecting hole that passes through the third connecting surface, and the fourth terminal is also provided with a second connecting hole that passes through the fourth connecting surface. The second connecting hole is used for fitting and connecting with a fastener. The electrical connection structure between the third terminal and the fourth terminal and the external structure is locked with the fitted fastener through the second connecting hole.

54. The relay according to claim 53, characterized in that, The extension line of the central axis of the second connecting hole does not interfere with the main body.

55. The relay according to claim 53 or 54, characterized in that, The second support portion is provided with a second receiving hole at the position corresponding to the second connecting hole. The second receiving hole is connected to the second connecting hole and is used to accommodate the portion of the fastener that protrudes from the second connecting hole.

56. The relay according to claim 55, characterized in that, The second receiving hole penetrates the side of the second support portion facing away from the second end wall.

57. The relay according to claim 55 or 56, characterized in that, The second support portion includes a fourth wall, the third terminal and the fourth terminal are attached to the fourth wall, the third connecting surface and the fourth connecting surface protrude from the fourth wall along the axial direction of the second connecting hole, and the fourth wall is provided with a second through hole communicating with the second connecting hole and the second receiving hole.

58. The relay according to claim 57, characterized in that, At least one of the second through hole and the second connecting hole is provided with a second threaded structure, the second threaded structure having a second threaded hole through the second connecting hole, the second threaded hole having an internal thread for adapting to the external thread of the fastener.

59. The relay according to claim 58, characterized in that, Along the axial direction of the second connecting hole, a portion of the second threaded structure is embedded in the second connecting hole, and another portion of the second threaded structure is embedded in the corresponding second through hole.

60. The relay according to claim 58 or 59, characterized in that, The second threaded structure is a nut for use with M3 bolts.

61. The relay according to any one of claims 57 to 60, characterized in that, The second support portion further includes a fifth wall protruding from the fourth surface along the first direction. The fifth wall is located on the side of the fourth wall facing the winding portion along the axial direction of the second connecting hole. The fourth wall and the fifth wall are spaced apart, and the second receiving hole is located between the fourth wall and the fifth wall.

62. The relay according to claim 61, characterized in that, The second support portion includes two fourth walls and one fifth wall. Along the radial direction of the second connecting hole, the two fourth walls are respectively disposed on opposite sides of the second end wall, and the third terminal and the fourth terminal are respectively attached to the two fourth walls.

63. The relay according to claim 62, characterized in that, The second support portion further includes at least three sixth walls protruding from the fourth surface. Along the radial direction of the second connecting hole, the three sixth walls are spaced apart and respectively connect the fourth wall and the fifth wall. The fourth wall, the fifth wall, two adjacent sixth walls and part of the fourth surface surround to form a second receiving hole.

64. The relay according to claim 63, characterized in that, Along the axial direction of the second connecting hole, the fifth wall is spaced apart from the main body.

65. The relay according to any one of claims 61 to 64, characterized in that, The third conductive element further includes a first adapter portion exposed on the surface of the insulating bracket, and the fourth conductive element further includes a second adapter portion exposed on the surface of the insulating bracket. The main body is also provided with an adapter. The first adapter portion and the second adapter portion are respectively electrically connected to one end of the adapter. The other end of the adapter is electrically connected to the first contact and the second contact. The adapter is connected to the fifth wall.

66. The relay according to claim 65, characterized in that, The third conductive element further includes a third intermediate connecting portion, which is embedded inside the second end wall. The third terminal is connected to one end of the third intermediate connecting portion, and the first adapter is connected to the opposite end of the third intermediate connecting portion. The fourth conductive element further includes a fourth intermediate connecting portion, which is embedded inside the second end wall. The fourth terminal is connected to one end of the fourth intermediate connecting portion, and the second adapter is connected to the opposite end of the second intermediate connecting portion.

67. The relay according to claim 66, characterized in that, The third terminal and the first adapter portion are integrally bent and connected to the third intermediate connecting portion, and the fourth terminal and the second adapter portion are integrally bent and connected to the fourth intermediate connecting portion.

68. The relay according to any one of claims 1 to 67, characterized in that, The conductive component and the insulating support insert are injection molded.

69. A power distribution box, characterized in that, The device includes a housing, a connecting assembly, and a relay as described in any one of claims 1 to 68. The housing is provided with a receiving groove, the relay is mounted in the receiving groove, and the connecting assembly includes a plurality of connecting terminals exposed on the surface of the housing. The first terminal and the second terminal extend out of the receiving groove. The first connecting surface is in contact with and electrically connected to the surface of one of the connecting terminals, and the second connecting surface is in contact with and electrically connected to the surface of the other connecting terminal.

70. The distribution box according to claim 69, characterized in that, The first terminal is provided with a first connecting hole that passes through the first connecting surface, the second terminal is provided with a first connecting hole that passes through the second connecting surface, the connecting terminal is provided with a locking hole, and the connecting assembly further includes a fastener. Each of the connecting terminals is respectively connected to the first connecting hole and the locking hole through the fastener to lock and connect with the corresponding first terminal or second terminal.

71. The distribution box according to claim 70, characterized in that, The fasteners include M3 bolts.

72. The distribution box according to claim 70 or 71, characterized in that, The wall of the receiving groove is provided with two first mounting grooves at intervals, the first terminal extends into the first mounting groove, and the second terminal extends into the second mounting groove.

73. The distribution box according to claim 72, characterized in that, The outer casing is further provided with a baffle corresponding to the position of the first mounting slot. The baffle is disposed on the side of the first mounting slot along the radial direction of the first connecting hole. Along the radial direction of the first connecting hole, at least a portion of the connecting terminal is located within the projection area of ​​the baffle.

74. The distribution box according to any one of claims 69 to 73, characterized in that, The relay also includes a yoke, and the receiving groove has a rib on the groove wall opposite to the yoke, at least a portion of the rib being in contact with the yoke.

75. The distribution box according to claim 74, characterized in that, The ribs include a first rib and a second rib. The yoke has a protrusion in the middle. The protrusion of the first rib from the wall of the receiving groove is greater than that of the second rib from the wall of the receiving groove. The first rib is in contact with the yoke at the side of the protrusion. The second rib is spaced apart from the protrusion.

76. The distribution box according to claim 75, characterized in that, Both the first rib and the second rib are annular ribs, with the first rib surrounding the second rib. An adhesive layer is provided in the inner region of the first rib and in the region between the first rib and the second rib.

77. The distribution box according to any one of claims 69 to 76, characterized in that, A limiting structure is also provided between the relay and the wall of the receiving groove, the limiting structure being used to restrict the relative movement between the relay and the wall of the receiving groove.

78. The distribution box according to any one of claims 69 to 77, characterized in that, The relay includes at least one of a main positive relay, a main negative relay, and a precharge relay.

79. A battery device comprising a battery cell assembly and a power distribution box as claimed in any one of claims 69 to 78, wherein the battery cell assembly is electrically connected to the power distribution box.

80. An electrical appliance comprising a battery device as claimed in claim 79, the battery device being configured to supply electrical energy to the electrical appliance.

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