Power distribution device, battery and electric equipment

Abstract

The invention relates to the field of batteries, and provides a power distribution device, a battery and electric equipment. The power distribution device comprises an electric device and an insulating heat-conducting piece. One side of the insulating heat conduction piece is connected to at least part of the electric device, the other side of the insulating heat conduction piece is used for being connected to the heat exchange piece, and the insulating heat conduction piece is used for transferring heat from the electric device to the heat exchange piece. The power distribution device can ensure that the electric device and the heat exchange piece can be insulated through the insulating heat conduction piece, so that the risk of high-voltage short-circuit ignition among the electric device, the insulating heat conduction piece and the heat exchange piece can be reduced. The power distribution device can also conduct heat between the electric device and the heat exchange piece through the insulating heat conduction piece, and particularly, heat generated by the electric device can be conveniently conducted to the heat exchange piece through the insulating heat conduction piece, so that the heat dissipation performance and the heat dissipation efficiency of the power distribution device to the electric device can be improved, and the risk of thermal failure of the electric device can be reduced; and the service lives of electric devices and power distribution devices can be prolonged.

Description

Technical Field

[0001] The present application belongs to the field of battery technology, and in particular relates to a power distribution device, a battery and an electrical equipment. Background Art

[0002] In a battery, a power distribution device is a control unit that distributes battery energy, and can especially distribute high voltage to the battery. In some cases, electrical components are provided inside the power distribution device. The electrical components generate a lot of heat during the operation of the power distribution device, which makes the electrical components susceptible to thermal failure. Summary of the invention

[0003] The embodiments of the present application provide a power distribution device, a battery and an electrical device, which are intended to solve the problem that a large amount of heat is generated by electrical components during operation of the power distribution device, causing the electrical components to fail easily due to heat.

[0004] To achieve the above purpose, the technical solution adopted in the embodiment of the present application is:

[0005] In a first aspect, a power distribution device is provided, comprising:

[0006] Electrical components;

[0007] An insulating heat conductive member, one side of which is connected to at least a part of the electrical device, and the other side of which is used to be connected to the heat exchange member, and the insulating heat conductive member is used to transfer heat from the electrical device to the heat exchange member.

[0008] The power distribution device provided in the embodiment of the present application can be connected to the electrical device in an insulated heat-conducting manner through an insulating heat-conducting member, and can be connected to the external heat exchanger in an insulated heat-conducting manner through an insulating heat-conducting member. Based on this, on the one hand, the insulating performance of the insulating heat-conducting member can be used to ensure that the electrical device and the heat exchanger can be insulated through the insulating heat-conducting member, so that short circuits between the electrical device, the insulating heat-conducting member and the heat exchanger can be basically avoided, and the risk of high-voltage short circuit ignition between the electrical device, the insulating heat-conducting member and the heat exchanger can be effectively reduced. On the other hand, it is convenient to conduct heat between the electrical device and the heat exchanger through the insulating heat-conducting member, especially to conduct the heat generated by the electrical device to the heat exchanger through the insulating heat-conducting member, so as to facilitate the diffusion and conduction of the heat generated by the electrical device to the outside of the power distribution device, thereby effectively ensuring and improving the heat dissipation performance and heat dissipation efficiency of the power distribution device for the electrical device, effectively reducing the risk of thermal failure of the electrical device, and effectively ensuring and extending the service life of the electrical device and the power distribution device.

[0009] In some embodiments, the electrical device includes a sheet-shaped conductive structure, wherein the conductive structure has a heat-conducting surface, and the heat-conducting surface is connected to the insulating heat-conducting member.

[0010] By adopting the above scheme, by connecting the heat-conducting surface of the conductive structure of the electrical device with the insulating heat-conducting part, on the one hand, based on the insulating characteristics of the insulating heat-conducting part, the conductive structure and the insulating heat-conducting part can be insulated, thereby basically avoiding short circuits between the conductive structure and the insulating heat-conducting part, and reducing the risk of high-voltage short circuits and ignition between the conductive structure and the insulating heat-conducting part. On the other hand, the conductive structure of the electrical device that generates more heat during operation can be directly and closely connected to the insulating heat-conducting part through the heat-conducting surface. Based on this, the thermal contact area between the conductive structure and the insulating heat-conducting part can be guaranteed and increased, so that the large amount of heat generated by the conductive structure can be reliably and effectively conducted to the heat exchanger through the insulating heat-conducting part. Therefore, the heat dissipation performance and heat dissipation efficiency of the power distribution device to the electrical device can be effectively guaranteed and improved, the risk of thermal failure of the electrical device can be effectively reduced, and the service life of the electrical device and the power distribution device can be effectively guaranteed and extended.

[0011] In some embodiments, the power distribution device includes a housing for mounting an electrical device;

[0012] The conductive structure comprises a first conductive part, a second conductive part and a third conductive part, the second conductive part is laid on a side of the shell facing the insulating heat conductive part, and a heat conductive surface is provided on a side of the second conductive part facing the insulating heat conductive part;

[0013] The first conductive part and the third conductive part are respectively connected to different sides of the second conductive part and are both bent toward one side close to the shell. The first conductive part is connected to the corresponding electrical component, and the third conductive part is used to connect to the electrical component.

[0014] By adopting the above scheme, the electrical device can be installed through the housing to protect the electrical device, and the installation position and installation state of the electrical device relative to the housing can be stable and firm. Based on this, it can be beneficial to ensure and extend the service life of the electrical device. In addition, it can facilitate the accurate and stable alignment of the electrical device and the insulating heat conductive member, so that the electrical device can accurately and reliably establish an insulating heat conductive connection relationship with the insulating heat conductive member. In addition, it can facilitate the mutual stable position and state of the electrical device and other electrical components, so that the electrical device can stably and reliably establish an electrical connection relationship with other electrical components.

[0015] By adopting the above scheme, the corresponding electrical device can be conveniently and reliably electrically connected to the corresponding electrical component through the conductive structure, especially through the first conductive part, the second conductive part and the third conductive part that are bent and connected in sequence. On this basis, the second conductive part can be laid on the side of the shell facing the insulating heat-conducting part, and the side of the second conductive part facing the insulating heat-conducting part is provided with a heat-conducting surface, so that the conductive structure can be directly insulated and heat-conductingly connected to the insulating heat-conducting part through the heat-conducting surface of the second conductive part. Based on this, the blocking effect of the shell on the heat-conducting path between the conductive structure and the insulating heat-conducting part can be reduced, and the heat-conducting contact area between the conductive structure and the insulating heat-conducting part can be guaranteed and increased, thereby ensuring and improving the heat-conducting effect between the conductive structure and the insulating heat-conducting part, and facilitating the reliable and effective rapid extraction of a large amount of heat generated by the conductive structure through the insulating heat-conducting part, and ensuring and improving the heat dissipation performance and heat dissipation efficiency of the power distribution device to the electrical device.

[0016] In some embodiments, the housing is provided with at least one receiving cavity;

[0017] At least one electrical device is a relay, the relay is fixedly mounted in the accommodating cavity, the relay includes a switch unit, at least part of the outer wall of the switch unit is exposed in the accommodating cavity, and the wall of the accommodating cavity is connected to the relay to fix the relay in the accommodating cavity;

[0018] The conductive structure of the relay is arranged outside the accommodating cavity, and the second conductive part of the relay is arranged outside the accommodating cavity close to the insulating heat-conducting member.

[0019] By adopting the above scheme, the relay can be fixed to the accommodating cavity by accommodating the relay in the accommodating cavity and connecting the wall of the accommodating cavity to the relay. On this basis, the relay fixedly installed in the accommodating cavity can be protected by exposing at least part of the outer wall of its switch unit in the accommodating cavity so as to replace its own shell structure with the wall of the accommodating cavity. Based on this, the shell structure of the relay itself can be effectively omitted on the basis of ensuring that the shell can play the role of accommodating, limiting, fixing, and protecting the relay, which can be conducive to compacting the overall layout of the shell and the relay, thereby facilitating the formation of an integrated, miniaturized, lightweight, and simplified power distribution device, which can effectively reduce the design margin, space waste, and occupied space of the power distribution device, and can effectively reduce the weight of the power distribution device, which can help reduce the production cost of the power distribution device.

[0020] By adopting the above scheme, the conductive structure of the relay can be arranged outside the accommodating cavity, so that the conductive structure can electrically connect the relay to other electrical components without occupying additional space inside the accommodating cavity. Based on this, the design margin and space waste between the housing and the relay can be reduced, and the assembly and matching of the housing, the relay, the conductive structure of the relay, and the electrical components connected to the conductive structure of the relay can be facilitated, and the conductive structure can conveniently and reliably connect the relay to other electrical components. On this basis, the second conductive part of the relay can be arranged on the outside of the accommodating cavity close to the insulating thermal conductive part, so that the second conductive part of the relay can be exposed on the outside of the accommodating cavity close to the insulating thermal conductive part, and the conductive structure of the relay can be directly insulated and thermally connected to the insulating thermal conductive part via the second conductive part. As a result, the blocking effect of the wall of the accommodating cavity on the thermal path between the conductive structure of the relay and the insulating thermal conductive part can be reduced, and the thermal contact area between the conductive structure of the relay and the insulating thermal conductive part can be increased, thereby improving the thermal conductivity between the relay and the insulating thermal conductive part. It is convenient to reliably and effectively remove the heat generated by the relay and its conductive structure quickly through the insulating thermal conductive part, which can improve the heat dissipation performance and heat dissipation efficiency of the distribution device to the relay, and reduce the risk of thermal failure of the relay.

[0021] In some embodiments, the power distribution device includes a base for being disposed on the heat exchange element;

[0022] The insulating heat-conducting component is installed on the base, and the surface of the insulating heat-conducting component facing away from the electrical component is exposed on the base and connected to the heat exchange component.

[0023] By adopting the above scheme, the insulating heat conductive part can be fixedly installed through the base, so that the installation position and installation state of the insulating heat conductive part relative to the base are stable and firm, so that the insulating heat conductive part and the electrical device can be accurately and stably aligned, and the insulating heat conductive part and the electrical device can be accurately and reliably established. On this basis, since the insulating heat conductive part is insulated and thermally connected to the electrical device on the side facing the electrical device, and the surface of the insulating heat conductive part facing away from the electrical device is exposed to the base and thermally connected to the heat exchanger, it is convenient for the insulating heat conductive part to be directly insulated and thermally connected between the electrical device and the heat exchanger, thereby reducing the blocking effect of the base on the heat conduction path of the insulating heat conductive part, and ensuring and improving the heat conduction effect of the insulating heat conductive part between the electrical device and the heat exchanger.

[0024] In some embodiments, the insulating thermal conductor is embedded in the base.

[0025] By adopting the above scheme, on the basis of the previous embodiment, at least part of the insulating heat conductive part can be embedded in the base. Based on this, on the one hand, at least part of the insulating heat conductive part can share space with the base, thereby saving the space occupied by both the insulating heat conductive part and the base. On the other hand, it is convenient for the insulating heat conductive part to pass through the base and directly connect the electrical component and the heat exchanger in an insulated and heat-conductive manner, thereby reducing the blocking effect of the base on the heat conduction path of the insulating heat conductive part, which can help to ensure and improve the heat conduction effect of the insulating heat conductive part between the electrical component and the heat exchanger.

[0026] In some embodiments, a first limiting structure is provided on a side of the base facing the electrical component, for limiting the portion of the electrical component connected to the insulating heat conductive member for installation.

[0027] By adopting the above scheme, a first limiting structure can be set on the base, so that the part of the electrical device used for thermal connection with the insulating heat conductive part can be limited and installed in the first limiting structure, and the surface of the insulating heat conductive part corresponding to the first limiting structure can be insulated and thermally connected. Based on this, the first limiting structure of the base can be used to limit and position the part of the electrical device used for thermal connection with the insulating heat conductive part, so that it is convenient to quickly and accurately realize the alignment and coordination of each electrical device and the base, and it can promote each electrical device to be accurately aligned with the insulating heat conductive part installed in the base, which can facilitate the stabilization of the relative position and relative state between the electrical device and the insulating heat conductive part, so that it is convenient to accurately and reliably realize the insulating heat conductive connection between the electrical device and the insulating heat conductive part, and ensure the thermal conductivity effect between the electrical device and the insulating heat conductive part.

[0028] In some embodiments, the first limiting structure is a hole-shaped structure, and the first limiting structure is connected to the surface of the insulating heat conductive component.

[0029] By adopting the above scheme, when the surface of the insulating heat-conducting part facing the electric device is embedded in the base, a first limiting structure is set as a hole-shaped structure on the base, and the first limiting structure is connected to the surface of the insulating heat-conducting part, so that the part of the electric device used for thermal connection with the insulating heat-conducting part can be embedded and limited in the first limiting structure, and the surface of the insulating heat-conducting part corresponding to the first limiting structure can be insulated and thermally connected. Based on this, the first limiting structure can be used to limit and position the part of the electric device used for thermal connection with the insulating heat-conducting part, which can facilitate the precise alignment of the electric device and the insulating heat-conducting part, and closely and reliably achieve an insulated thermal connection with the insulating heat-conducting part. On this basis, it can also ensure that the part of the electric device can penetrate into the base, and can directly achieve an insulated thermal connection with the insulating heat-conducting part through the base, thereby reducing the blocking effect of the base on the thermal path between the electric device and the insulating heat-conducting part, and improving the thermal conductivity between the insulating heat-conducting part and the electric device. In addition, it can be beneficial to compress the comprehensive occupied space of the electric device, the base and the insulating heat-conducting part.

[0030] In some embodiments, a second limiting structure is provided on a side of the base facing away from the electrical device, for limiting the installation of the insulating heat conductive component.

[0031] By adopting the above solution, a second limiting structure can be provided on the side of the base away from the electrical device, so as to facilitate the installation of the insulating heat conductive member in the second limiting structure. Based on this, the insulating heat conductive member can be limited and accommodated by the second limiting structure of the base, so that the assembly between the insulating heat conductive member and the base can be realized quickly and accurately, and the insulating heat conductive member can be accurately aligned with the electrical device to be connected to it by heat conduction, so that the insulating heat conductive member can accurately, stably and reliably perform the heat conduction function.

[0032] In some embodiments, the second limiting structure is a groove-shaped structure.

[0033] By adopting the above scheme, a second limiting structure with a groove-shaped structure can be provided on the base so as to facilitate embedding the insulating heat conductive part in the second limiting structure. Based on this, the insulating heat conductive part can be limited and positioned via the second limiting structure, which can facilitate accurate alignment of the insulating heat conductive part with the base and each electrical component, and facilitate close and reliable insulating heat conductive connection between the insulating heat conductive part and each electrical component. On this basis, it can also ensure that at least part of the insulating heat conductive part can be deeply embedded in the base, and can directly achieve insulating heat conductive connection with the electrical component through the base, thereby reducing the blocking effect of the base on the heat conductive path between the electrical component and the insulating heat conductive part, and improving the heat conductive effect between the insulating heat conductive part and the electrical component. In addition, it can help to compress the combined occupied space of the electrical component, the base and the insulating heat conductive part.

[0034] In some embodiments, the side of the insulating heat conductive member facing away from the electrical device protrudes out of the notch of the second limiting structure.

[0035] By adopting the above solution, when the insulating heat conductive member is embedded in the second limiting structure, the side of the insulating heat conductive member facing away from the electrical device can be exposed from the second limiting structure by making the side of the insulating heat conductive member facing away from the electrical device protrude from the notch of the second limiting structure. Based on this, it is convenient for the side of the insulating heat conductive member facing away from the electrical device to be directly connected to the heat exchanger through heat conduction, thereby reducing the blocking effect of the base on the heat conduction path between the insulating heat conductive member and the heat exchanger, which can help to ensure and improve the heat conduction effect between the insulating heat conductive member and the heat exchanger. Furthermore, since the side of the insulating heat conductive part facing away from the electrical device protrudes out of the slot of the second limiting structure, the size of the insulating heat conductive part in the slot depth direction of the second limiting structure is greater than the slot depth of the second limiting structure. Therefore, even if there is a processing error in the size of the insulating heat conductive part in the slot depth direction of the second limiting structure or the slot depth of the second limiting structure, when the insulating heat conductive part is embedded in the second limiting structure, it can basically ensure that the side of the insulating heat conductive part facing away from the electrical device can be exposed to the second limiting structure and directly thermally connected to the heat exchanger. Therefore, based on the arrangement of this embodiment, it can also be compatible with and allow certain processing errors, and can reduce the requirements for the matching accuracy of the insulating heat conductive part and the second limiting structure in the slot depth direction of the second limiting structure, thereby facilitating the processing and assembly of the insulating heat conductive part and the base.

[0036] In some embodiments, the side of the insulating heat conductive member facing away from the electrical device is flush with the notch of the second limiting structure.

[0037] By adopting the above solution, when the insulating heat conductive member is embedded in the second limiting structure, the side of the insulating heat conductive member facing away from the electrical device can be flush with the notch of the second limiting structure, so that the side of the insulating heat conductive member facing away from the electrical device can be exposed from the second limiting structure. Based on this, it is convenient for the side of the insulating heat conductive member facing away from the electrical device to be directly connected to the heat exchanger through heat conduction, thereby reducing the blocking effect of the base on the heat conduction path between the insulating heat conductive member and the heat exchanger, which can help to ensure and improve the heat conduction effect between the insulating heat conductive member and the heat exchanger.

[0038] In some embodiments, the DC breakdown strength of the insulating thermal conductor is 15 Kv / mm to 17 Kv / mm.

[0039] By adopting the above scheme, the DC breakdown strength of the insulating heat conductive part can be set to 15Kv / mm-17Kv / mm, so that the insulating heat conductive part can have a better voltage tolerance capability than conventional insulating heat conductive adhesive. Based on this, the risk of the insulating heat conductive part being broken down by high voltage during the operation of the electrical device can be effectively reduced on the basis of reliable heat exchange and heat conduction between the electrical device and the heat exchanger through the insulating heat conductive part, thereby effectively ensuring and extending the service life of the insulating heat conductive part, effectively reducing the risk of thermal failure of the electrical device, and effectively ensuring and improving the service life and safety of the power distribution device.

[0040] In some embodiments, the DC breakdown strength of the insulating thermal conductor is 15.1 Kv / mm to 16.6 Kv / mm.

[0041] By adopting the above scheme, by making the DC breakdown strength of the insulating thermal conductive part 15.1Kv / mm~16.6Kv / mm, on the one hand, the insulating thermal conductive part can have a better voltage tolerance capability compared with conventional insulating thermal conductive adhesives, thereby effectively reducing the risk of high voltage breakdown of the insulating thermal conductive part during the operation of the electrical device, effectively ensuring and extending the service life of the insulating thermal conductive part, effectively reducing the risk of thermal failure of the electrical device, and effectively ensuring and improving the service life and safety of the power distribution device. On the other hand, the requirements for the voltage tolerance capability of the insulating thermal conductive part can be measured accordingly, thereby effectively reducing the manufacturing difficulty and cost of the insulating thermal conductive part, and effectively reducing the cost of the power distribution device.

[0042] In some embodiments, the insulating thermal conductive member is a phase change material member.

[0043] By adopting the above scheme, the insulating heat conductive part can be made of phase change material so that the insulating heat conductive part can change its material state and absorb or release a large amount of latent heat without changing the temperature based on the phase change characteristics of the phase change material. Based on this, the thermal conductivity and heat dissipation performance of the insulating heat conductive part can be effectively guaranteed and improved, thereby effectively guaranteeing and improving the heat dissipation performance and heat dissipation efficiency of the distribution device for electrical components, effectively reducing the risk of thermal failure of electrical components, and effectively guaranteeing and extending the service life of electrical components and distribution devices.

[0044] In some embodiments, the insulating thermally conductive member is a ceramic member.

[0045] By adopting the above scheme, by making the insulating heat-conducting part a ceramic part, on the one hand, the thermal conductivity and heat dissipation performance of the insulating heat-conducting part can be effectively improved, thereby effectively improving the heat dissipation performance and heat dissipation efficiency of the power distribution device to the electrical device, effectively reducing the risk of thermal failure of the electrical device, and effectively ensuring and extending the service life of the electrical device and the power distribution device. On the other hand, the insulating heat-conducting part can have a better voltage tolerance capability than conventional insulating heat-conducting adhesives, thereby effectively reducing the risk of the insulating heat-conducting part being broken down by high voltage during the operation of the electrical device, effectively ensuring and extending the service life of the insulating heat-conducting part, and effectively ensuring and improving the service life and safety of the power distribution device.

[0046] In some embodiments, the insulating thermal conductor includes at least one of aluminum oxide ceramic, aluminum nitride ceramic, and silicon nitride ceramic.

[0047] By adopting the above scheme, the insulating thermal conductive component can include at least one of aluminum oxide ceramics, aluminum nitride ceramics and silicon nitride ceramics, so that the insulating thermal conductive component has excellent electrical insulation, thermal conductivity, chemical resistance, wear resistance and low thermal expansion properties, thereby improving the performance and service life of the insulating thermal conductive component.

[0048] In some embodiments, at least two electrical components are provided, and one insulating thermal conductive member is provided, and each electrical component is thermally connected to the insulating thermal conductive member.

[0049] By adopting the above scheme, at least two electrical components can be thermally connected to the insulating heat conductive member, so that the insulating heat conductive member can play a heat conduction role for at least two electrical components. Based on this, on the one hand, the installation area of ​​the insulating heat conductive member can be increased, and the heat conduction effect of the insulating heat conductive member on each electrical component can be guaranteed and improved, thereby ensuring and improving the heat dissipation performance and heat dissipation efficiency of the power distribution device for the electrical components, reducing the risk of thermal failure of the electrical components, and ensuring and extending the service life of the electrical components and the power distribution device. On the other hand, the number of insulating heat conductive members can be reduced, which can facilitate the simplification of the assembly of the insulating heat conductive members, thereby facilitating and improving the assembly convenience and assembly efficiency of the power distribution device.

[0050] In some embodiments, the insulating heat conductive parts and the electrical components are arranged in a one-to-one correspondence.

[0051] By adopting the above scheme, the insulating heat-conducting parts can be arranged one-to-one with the electrical components, so that each insulating heat-conducting part can be insulated and heat-conductingly connected to each electrical component one-to-one, so that each insulating heat-conducting part can play a one-to-one heat conduction effect on each electrical component. Based on this, the heat conduction effect of each insulating heat-conducting part on each electrical component can be guaranteed respectively, and even the size and shape of the corresponding insulating heat-conducting part can be designed in a targeted manner according to the heat conduction requirements of the electrical component. In this way, the heat dissipation performance and heat dissipation efficiency of the power distribution device for the electrical component can be effectively guaranteed and improved, the risk of thermal failure of the electrical component can be reduced, and the service life of the electrical component and the power distribution device can be guaranteed and extended. In addition, based on the setting of this embodiment, the total consumables of each insulating heat-conducting part can be saved accordingly, thereby saving the total cost of each insulating heat-conducting part and the cost of the power distribution device.

[0052] In some embodiments, the insulating thermal conductor is connected to the electrical component by fasteners.

[0053] By adopting the above scheme, the electrical device and the insulating heat-conducting part can be locked and connected together via fasteners to enhance the connection strength and tightness between the electrical device and the insulating heat-conducting part. Based on this, it is beneficial to enhance the tightness and reliability of the thermal connection between the electrical device and the insulating heat-conducting part, so that the insulating heat-conducting part can reliably and effectively conduct the heat generated by the electrical device to the heat exchanger, thereby effectively ensuring and improving the heat dissipation performance and heat dissipation efficiency of the power distribution device to the electrical device, effectively reducing the risk of thermal failure of the electrical device, and effectively ensuring and extending the service life of the electrical device and the power distribution device.

[0054] In some embodiments, the insulating heat conductive member is bonded to the electrical device by a heat conductive adhesive.

[0055] By adopting the above scheme, the electrical device and the insulating heat-conducting part can be bonded together by the heat-conducting adhesive to enhance the connection strength and tightness between the electrical device and the insulating heat-conducting part. Based on this, it is beneficial to enhance the tightness and reliability of the thermal connection between the electrical device and the insulating heat-conducting part, so that the insulating heat-conducting part can reliably and effectively conduct the heat generated by the electrical device to the heat exchange part, thereby effectively ensuring and improving the heat dissipation performance and heat dissipation efficiency of the power distribution device to the electrical device, effectively reducing the risk of thermal failure of the electrical device, and effectively ensuring and extending the service life of the electrical device and the power distribution device.

[0056] In some embodiments, the electrical device includes at least one of a relay, a current sensor, a fuse, an insurance, and a pre-charge resistor.

[0057] By adopting the above scheme, by making the electrical device include at least one of relays, current sensors, fuses, insurance, and pre-charging resistors, it can be ensured that the electrical device includes an important component for high voltage distribution to the battery in the power distribution device, and it can be ensured that the electrical device is the main heat-generating component. Based on this, the insulation and heat-conducting connection between the comprehensive insulating heat-conducting parts and the electrical device can ensure and improve the heat dissipation performance and heat dissipation efficiency of the power distribution device for electrical devices such as relays, current sensors, fuses, insurance, and pre-charging resistors, and can effectively reduce the risk of thermal failure of electrical devices such as relays, current sensors, fuses, insurance, and pre-charging resistors, and can ensure and extend the service life of electrical devices such as relays, current sensors, fuses, insurance, and pre-charging resistors.

[0058] In some embodiments, the electrical device is provided with at least two;

[0059] The gap between the electrical device and the electrical device adjacent thereto is a first gap. The electrical device is provided with a first connector, which includes a first connecting portion for detachably connecting to an external connector. The first connecting portion is located outside each first gap of the corresponding electrical device.

[0060] By adopting the above scheme, when the gap between an electrical device and an electrical device disposed adjacent thereto are both defined as the first gap, by disposing the first connection part outside each first gap of the corresponding electrical device, on the one hand, it is convenient to perform the connection operation of the first connection part in the space outside each first gap of the corresponding electrical device, thereby ensuring and improving the convenience of connecting and disconnecting the first connection part. On the other hand, each first gap of the electrical device does not need to provide a space for accommodating the first connection part, nor does it need to provide a space for connecting and operating the first connection part, thereby facilitating the compression of the gap between the electrical device and the electrical device disposed adjacent thereto as required, which is conducive to compacting the overall layout of each electrical device, thereby facilitating the formation of an integrated, compact, and miniaturized power distribution device.

[0061] In a second aspect, a battery is provided, the battery comprising the power distribution device provided in an embodiment of the present application.

[0062] In a third aspect, an electrical device is provided, and the electrical device includes the battery provided in an embodiment of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0063] In order to clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0064] Figure 1 A schematic diagram of the structure of a vehicle provided in some embodiments of the present application;

[0065] Figure 2 An exploded schematic diagram of a battery provided in some embodiments of the present application;

[0066] Figure 3 A partial structural schematic diagram of a battery provided in some embodiments of the present application;

[0067] Figure 4 A schematic diagram of the structure of a power distribution device provided in some embodiments of the present application;

[0068] Figure 5 for Figure 4 Schematic diagram of the power distribution device provided Figure 1 ;

[0069] Figure 6 for Figure 4 Schematic diagram of the power distribution device provided Figure 2 ;

[0070] Figure 7 for Figure 4 A front view of the power distribution unit provided;

[0071] Figure 8 for Figure 7 A cross-sectional view along AA is provided;

[0072] Fig. 9 An exploded schematic diagram of a housing, a relay and a cover assembly provided in some embodiments of the present application;

[0073] Fig.10 A cross-sectional view of a power distribution device provided in some other embodiments of the present application, wherein the side of the insulating heat conductive member facing away from the electrical device is flush with the notch of the second limiting structure;

[0074] Fig.11 Schematic diagram of the exploded view of various electrical components, bases and insulating heat-conducting parts provided in other embodiments of the present application, wherein the insulating heat-conducting parts are arranged in a one-to-one correspondence with the electrical components;

[0075] Fig.12 A cross-sectional view of a power distribution device provided in some other embodiments of the present application, wherein the insulating heat conductive member and the electrical device are locked and connected by fasteners;

[0076] Fig.13 A cross-sectional view of a power distribution device provided in some other embodiments of the present application, wherein the insulating heat-conducting member and the electrical device are bonded by a heat-conducting adhesive;

[0077] Fig.14 Schematic diagram of the exploded view of various electrical components, covers and connectors provided in some embodiments of the present application.

[0078] Among them, the reference numerals in the figure are:

[0079] 1-battery, 2-controller, 3-motor; 10-battery unit; 20-box, 21-first part, 22-second part; 30-power distribution device; 40-heat exchange component, 41-thermal management component;

[0080] 31-electrical device, 311-conductive structure, 3111-heat-conducting surface, 3112-first conductive part, 3113-second conductive part, 3114-third conductive part; 312-relay, 3121-main positive relay, 3122-main negative relay, 3123-pre-charge relay, 3124-switch unit, 31241-iron core, 31242-coil, 31243-bracket; 3125-contact; 313-current sensor, 3131-shunt, 3132-Hall current sensor; 314-fuse, 3141-main Fuse, 315-pre-charging resistor; 316-first gap, 317-first connecting piece, 3171-first connecting part; 32-insulating heat-conducting piece; 33-shell, 331-accommodating cavity, 332-insulating structure; 34-base, 341-first limiting structure, 342-second limiting structure; 35-fastener; 36-thermal conductive adhesive; 37-connector, 371-socket, 372-second connecting piece, 3721-second connecting part, 3722-conductive connecting part; 38-cover; 39-covering piece, 391-snap, 392-through hole. DETAILED DESCRIPTION

[0081] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application clear and understandable, the application is described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain this application and are not used to limit this application.

[0082] In the description of the present application, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0083] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or at least two of the features. In the description of this application, "at least two" means two or more, unless otherwise clearly and specifically defined.

[0084] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0085] In a battery, a power distribution device is a control unit that distributes battery energy, and can especially distribute high voltage to the battery. In some cases, electrical components are provided inside the power distribution device. The electrical components generate a lot of heat during the operation of the power distribution device, which makes the electrical components susceptible to thermal failure.

[0086] Therefore, some embodiments of the present application provide a power distribution device, which can be connected to the electrical device in an insulated and heat-conductive manner through an insulating heat conductive member, and can be connected to the external heat exchanger in an insulated and heat-conductive manner through an insulating heat conductive member. Based on this, on the one hand, the insulation performance of the insulating heat conductive member can be used to ensure that the electrical device and the heat exchanger can be insulated through the insulating heat conductive member, so that short circuits between the electrical device, the insulating heat conductive member and the heat exchanger can be basically avoided, and the risk of high-voltage short circuit ignition between the electrical device, the insulating heat conductive member and the heat exchanger can be effectively reduced. On the other hand, it is convenient to conduct heat between the electrical device and the heat exchanger through the insulating heat conductive member, especially to conduct the heat generated by the electrical device to the heat exchanger through the insulating heat conductive member, so as to diffuse and conduct the heat generated by the electrical device to the outside of the power distribution device, thereby effectively ensuring and improving the heat dissipation performance and heat dissipation efficiency of the power distribution device to the electrical device, effectively reducing the risk of thermal failure of the electrical device, and effectively ensuring and extending the service life of the electrical device and the power distribution device.

[0087] The power distribution device disclosed in the embodiment of the present application can be used for batteries to serve as a control unit for distributing battery energy and to distribute high voltage to the batteries.

[0088] The battery disclosed in the embodiment of the present application may be a modular structure including at least one battery cell to provide higher voltage and capacity, such as a battery module or a battery pack. Among them, the battery cell may be a lithium-ion secondary battery, a lithium-ion primary battery, a lithium-sulfur battery, a sodium-lithium-ion battery, a sodium-ion battery or a magnesium-ion battery, etc.; the battery cell may be cylindrical, flat, rectangular or other shapes, etc.; the battery cell may be packaged in different ways to form a cylindrical battery cell, a square battery cell or a soft-pack battery cell, etc.

[0089] The battery disclosed in the embodiment of the present application can be used in electrical equipment that uses the battery as a power source, or in various energy storage systems that use the battery as an energy storage element. Electrical equipment may be, but is not limited to, vehicles, mobile phones, portable devices, laptops, ships, spacecraft, electric toys, and electric tools, etc. The vehicle may be a fuel vehicle, a gas vehicle, or a new energy vehicle, and the new energy vehicle may be a pure electric vehicle, a hybrid vehicle, or an extended-range vehicle, etc. Spacecraft include airplanes, rockets, space shuttles, and spacecraft, etc. Electric toys include fixed or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, etc. Electric tools include metal cutting electric tools, grinding electric tools, assembly electric tools, and railway electric tools, such as electric drills, electric grinders, electric wrenches, electric screwdrivers, electric hammers, impact drills, concrete vibrators, and electric planers, etc.

[0090] In order to illustrate the technical solution provided by the present application, the following is a detailed description with reference to specific drawings and embodiments, and taking "electrical equipment being a vehicle" as an example.

[0091] See also Figure 1 , Figure 1 A schematic diagram of the structure of a vehicle provided for some embodiments of the present application. The vehicle may be a fuel vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle may be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc. A battery 1 is provided inside the vehicle, and the battery 1 may be provided at the bottom, head or tail of the vehicle. The battery 1 is used to power the vehicle, for example, the battery 1 can be used as an operating power source for the vehicle. The vehicle may also include a controller 2 and a motor 3, and the controller 2 is used to control the battery 1 to power the motor 3, for example, for starting, navigating and driving the vehicle. Working power requirements.

[0092] In some embodiments of the present application, the battery 1 can be used not only as an operating power source for the vehicle, but also as a driving power source for the vehicle, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle.

[0093] See also Figure 2 , Figure 3 , Figure 2 This is a schematic diagram of an exploded view of a battery 1 provided in some embodiments of the present application. Figure 3A partial structural diagram of a battery 1 provided in some embodiments of the present application. The battery 1 includes a battery cell 10 and a box 20, and the battery cell 10 is contained in the box 20. Among them, the box 20 is used to provide a storage space for the battery cell 10, and the structure of the box 20 can be designed in a diversified and flexible manner. In some embodiments, the box 20 may include a first part 21 and a second part 22, and the first part 21 and the second part 22 cover each other, and the first part 21 and the second part 22 jointly define a storage space for accommodating the battery cell 10. The second part 22 may be a hollow structure with one end open, and the first part 21 may be a plate-like structure, and the first part 21 covers the open side of the second part 22, so that the first part 21 and the second part 22 jointly define a storage space; the first part 21 and the second part 22 may also be hollow structures with one side open, and the open side of the first part 21 covers the open side of the second part 22. Of course, the box 20 formed by the first part 21 and the second part 22 can be in a variety of shapes, such as a cylinder, a cuboid, etc.

[0094] In the battery 1 , there may be at least two battery cells 10 , and the at least two battery cells 10 may be connected in series, in parallel, or in mixed connection. Mixed connection means that at least two battery cells 10 are connected in series and in parallel.

[0095] For example, the battery unit 10 may be a battery cell. At least two battery cells may be directly connected in series, in parallel, or in mixed connection, and then the whole formed by at least two battery cells is accommodated in the box 20. Among them, the battery cell may be a lithium-ion secondary battery, a lithium-sulfur battery, a sodium-lithium-ion battery, a sodium-ion battery, or a magnesium-ion battery, etc. The battery cell may be cylindrical, flat, rectangular, or in other shapes, etc. The battery cell may be packaged in different ways to form a cylindrical battery cell, a square battery cell, or a soft-pack battery cell, etc.

[0096] Alternatively, the battery unit 10 may be a battery module or a battery module. At least two battery cells may be connected in series, in parallel, or in a mixed connection to form a modular structure, i.e., a battery module or a battery module; at least two battery modules or battery modules may be connected in series, in parallel, or in a mixed connection to form a whole, and accommodated in the box 20.

[0097] In some embodiments, the battery 1 may further include a power distribution device 30, which is accommodated in the accommodation space of the box 20. The power distribution device 30 is connected to the battery unit 10, etc. The power distribution device 30 can be used as a control unit for distributing energy of the battery 1 and performing high voltage distribution on the battery 1.

[0098] In some embodiments, the battery 1 may further include a thermal management component 41, which is contained in the containing space of the box 20 and is used to perform heat exchange with components such as the battery cell 10 and the power distribution device 30 to adjust the temperature of the battery 1. The thermal management component 41 may be a liquid cooling plate. In some embodiments, one thermal management component 41 may be provided and laid on the same side of components such as the battery cell 10 and the power distribution device 30 to facilitate heat exchange with components such as the battery cell 10 and the power distribution device 30. Of course, in some embodiments, at least two thermal management components 41 may also be provided to facilitate flexible design of the position and state of the thermal management component 41, and facilitate heat exchange between at least two thermal management components 41 and components such as the battery cell 10 and the power distribution device 30. The thermal management component 41 may also be an air cooling system, and the airflow generated by the air cooling system may pass through components such as the battery cell 10 and the power distribution device 30 to facilitate heat exchange with components such as the battery cell 10 and the power distribution device 30. Of course, the thermal management component 41 may also be other structural forms.

[0099] Of course, the battery 1 may also include other structures. For example, the battery 1 may also include a busbar component (not shown in the figure) for achieving electrical connection between at least two battery cells 10 .

[0100] Of course, in some embodiments, the battery 1 may not include the box body 20, but at least two battery cells 10 are electrically connected and formed into a whole through necessary fixing structures and then assembled into an electrical device.

[0101] See also Figure 3 , Figure 4 , Figure 5 , Figure 6 Some embodiments of the present application provide a power distribution device 30, which includes an electrical device 31 and an insulating heat-conducting member 32. One side of the insulating heat-conducting member 32 is connected to at least a portion of the electrical device 31, and the other side of the insulating heat-conducting member 32 is used to connect to a heat exchange member 40, and the insulating heat-conducting member 32 is used to transfer heat from the electrical device 31 to the heat exchange member 40.

[0102] It should be noted that the electrical device 31 may refer to any electrical component in the power distribution device 30. The electrical device 31 may include a relay 312, a current sensor 313, a fuse, an insurance 314, a pre-charge resistor 315, etc. Among them, the relay 312 may include a main positive relay 3121, a main negative relay 3122, a pre-charge relay 3123, etc. The current sensor 313 may include a shunt 3131, a Hall current sensor 3132, etc. In some embodiments, the insurance 314 may be a fuse.

[0103] It should also be noted that the heat exchanger 40 may refer to an external component used for heat exchange with components such as the electrical component 31. The heat exchanger 40 has good thermal conductivity, and can quickly and reliably exchange heat with components such as the electrical component 31 and the insulating heat conductive component 32, and quickly conduct heat. For example, the heat exchanger 40 may be a thermal management component 41, or may be the box 20 of the battery 1, or may be the body of a vehicle, and so on.

[0104] It should also be noted that the insulating heat conductive member 32 is at least used to transfer heat from the electrical device 31 to the heat exchanger 40. When the power distribution device 30 is disposed on the heat exchanger 40, the insulating heat conductive member 32 will be located between the electrical device 31 and the heat exchanger 40.

[0105] The insulating heat conductive member 32 includes a heat conductive material, has heat conductive properties, and can play a heat conductive role, that is, play a heat exchange and heat conduction role. One side of the insulating heat conductive member 32 is heat-conductively connected to at least a portion of the electrical device 31, and the other side of the insulating heat conductive member 32 is heat-conductively connected to the heat exchange member 40. Based on this, it is convenient for the electrical device 31 to quickly and reliably exchange heat with the heat exchange member 40 via the insulating heat conductive member 32, and it is especially convenient for the insulating heat conductive member 32 to quickly conduct the heat generated by the electrical device 31 to the heat exchange member 40. As a result, the heat dissipation performance and heat dissipation efficiency of the power distribution device 30 to the electrical device 31 can be effectively guaranteed and improved, the risk of thermal failure of the electrical device 31 can be reduced, and the service life of the electrical device 31 and the power distribution device 30 can be guaranteed and extended.

[0106] The insulating heat conductive member 32 also includes insulating material, has insulating properties, and can play an insulating role. Based on the insulating properties of the insulating heat conductive member 32, it can be ensured that the electrical device 31 and the heat exchanger 40 can be insulated via the insulating heat conductive member 32, and a short circuit between the electrical device 31, the insulating heat conductive member 32, and the heat exchanger 40 can be avoided, thereby reducing the risk of high-voltage short circuit ignition between the electrical device 31, the insulating heat conductive member 32, and the heat exchanger 40.

[0107] The insulating heat conductive member 32 may be a single-layer structure or a multi-layer structure.

[0108] The shape of the insulating heat-conducting member 32 can be variously designed, such as a cuboid, a cylinder, etc.

[0109] Among them, on the basis of ensuring the thermal conductivity and insulation between the insulating thermal conductive part 32 and the electrical device 31, the connection method between the insulating thermal conductive part 32 and the electrical device 31 can be flexibly designed, for example, abutment, bonding, bolt locking connection, etc. can be adopted.

[0110] In summary, the power distribution device 30 provided in the embodiment of the present application can be insulated and thermally connected to the electrical device 31 through the insulating thermal conductive member 32, and can be insulated and thermally connected to the external heat exchanger 40 through the insulating thermal conductive member 32. Based on this, on the one hand, the insulation performance of the insulating thermal conductive member 32 can be used to ensure that the electrical device 31 and the heat exchanger 40 can be insulated through the insulating thermal conductive member 32, so that a short circuit between the electrical device 31, the insulating thermal conductive member 32 and the heat exchanger 40 can be basically avoided, and the risk of high-voltage short circuit ignition between the electrical device 31, the insulating thermal conductive member 32 and the heat exchanger 40 can be effectively reduced. On the other hand, it is convenient to exchange heat and conduct heat between the electrical device 31 and the heat exchanger 40 through the insulating heat conductive part 32, and especially convenient to conduct the heat generated by the electrical device 31 to the heat exchanger 40 through the insulating heat conductive part 32, so as to diffuse and conduct the heat generated by the electrical device 31 to the outside of the distribution device 30. As a result, the heat dissipation performance and heat dissipation efficiency of the distribution device 30 to the electrical device 31 can be effectively guaranteed and improved, the risk of thermal failure of the electrical device 31 can be effectively reduced, and the service life of the electrical device 31 and the distribution device 30 can be effectively guaranteed and extended.

[0111] See also Figure 3 , Figure 4 , Figure 5 In some embodiments of the present application, the electrical device 31 includes a sheet-shaped conductive structure 311 , the conductive structure 311 has a heat-conducting surface 3111 , and the heat-conducting surface 3111 is connected to the insulating heat-conducting member 32 .

[0112] It should be noted that the conductive structure 311 is a component of the electrical device 31 for achieving electrical connection. The conductive structure 311 may be in a sheet shape, and the conductive structure 311 may include a bar, a bus bar, a conductive sheet, etc. Among them, the bar may include a copper bar, an aluminum bar, etc.

[0113] The conductive structure 311 has a heat-conducting surface 3111, and the heat-conducting surface 3111 can be heat-conductingly connected to the insulating heat-conducting member 32 in a close-fitting manner. With such a configuration, the conductive structure 311 of the electrical device 31, which generates more heat during operation, can be directly heat-conductingly connected to the insulating heat-conducting member 32 via the heat-conducting surface 3111. Based on this, the heat-conducting contact area between the conductive structure 311 and the insulating heat-conducting member 32 can be guaranteed and increased, so that a large amount of heat generated by the conductive structure 311 can be reliably and effectively conducted to the heat exchange member 40 through the insulating heat-conducting member 32, thereby effectively guaranteeing and improving the heat dissipation performance and heat dissipation efficiency of the power distribution device 30 to the electrical device 31, effectively reducing the risk of thermal failure of the electrical device 31, and effectively guaranteeing and extending the service life of the electrical device 31 and the power distribution device 30.

[0114] Furthermore, based on the insulating property of the insulating heat conductive member 32, the conductive structure 311 can be insulated from the insulating heat conductive member 32. In this way, a short circuit between the conductive structure 311 and the insulating heat conductive member 32 can be basically avoided, thereby reducing the risk of a high voltage short circuit ignition between the conductive structure 311 and the insulating heat conductive member 32.

[0115] By adopting the above scheme, by connecting the heat-conducting surface 3111 of the conductive structure 311 of the electrical device 31 with the insulating heat-conducting part 32, on the one hand, based on the insulating characteristics of the insulating heat-conducting part 32, the conductive structure 311 and the insulating heat-conducting part 32 can be insulated from each other, thereby basically avoiding a short circuit between the conductive structure 311 and the insulating heat-conducting part 32, and reducing the risk of high-voltage short circuit ignition between the conductive structure 311 and the insulating heat-conducting part 32. On the other hand, the conductive structure 311 of the electrical device 31, which generates more heat during operation, can be directly and closely connected to the insulating heat conductive part 32 via the heat conductive surface 3111. Based on this, the thermal contact area between the conductive structure 311 and the insulating heat conductive part 32 can be guaranteed and increased, so that a large amount of heat generated by the conductive structure 311 can be reliably and effectively conducted to the heat exchanger 40 through the insulating heat conductive part 32. As a result, the heat dissipation performance and heat dissipation efficiency of the power distribution device 30 to the electrical device 31 can be effectively guaranteed and improved, the risk of thermal failure of the electrical device 31 can be effectively reduced, and the service life of the electrical device 31 and the power distribution device 30 can be effectively guaranteed and extended.

[0116] Of course, in other embodiments, the electrical device 31 can be insulated and thermally connected to the insulating thermal conductive member 32 through the non-sheet conductive structure 311; or, the electrical device 31 can be insulated and thermally connected to the insulating thermal conductive member 32 through a portion other than the conductive structure 311.

[0117] See also Figure 5 , Figure 7 , Figure 8 In some embodiments of the present application, the power distribution device 30 includes a housing 33, and the housing 33 is used to install the electrical device 31. The conductive structure 311 includes a first conductive part 3112, a second conductive part 3113 and a third conductive part 3114. The second conductive part 3113 is laid on the side of the housing 33 facing the insulating heat-conducting member 32, and a heat-conducting surface 3111 is provided on the side of the second conductive part 3113 facing the insulating heat-conducting member 32. The first conductive part 3112 and the third conductive part 3114 are respectively connected to different sides of the second conductive part 3113, and are both bent toward the side close to the housing 33. The first conductive part 3112 is connected to the corresponding electrical device 31. The third conductive part 3114 is used to connect to the electrical component.

[0118] It should be noted that the housing 33 is a component for mounting the electrical device 31. The structure and shape of the housing 33 can be designed in a variety of ways. When there are multiple electrical devices 31, the layout of the multiple electrical devices 31 in the housing 33 can be flexibly designed as needed.

[0119] The electrical component 31 is installed through the housing 33, so that the electrical component 31 is protected by the housing 33, and the installation position and installation state of the electrical component 31 relative to the housing 33 are stable and firm. Therefore, the service life of the electrical component 31 can be guaranteed and extended; the electrical component 31 can be accurately and stably aligned with the insulating heat conductive member 32, and the insulating heat conductive connection relationship can be accurately and reliably established with the insulating heat conductive member 32; the electrical component 31 can be mutually stable in position and state with other electrical components, and the electrical connection relationship can be stably and reliably established with other electrical components.

[0120] The electrical component refers to a component that is electrically connected to the electrical device 31, and the electrical component may be another electrical device 31, or a circuit (not limited to a circuit board), an external bus, etc. The electrical components electrically connected to different electrical devices 31 may be the same or different.

[0121] It should also be noted that the conductive structure 311 is a component used to electrically connect the corresponding electrical device 31 to the corresponding electrical component. The corresponding electrical device 31 refers to the electrical device 31 that includes the conductive structure 311 and is electrically connected to the conductive structure 311. The corresponding electrical component refers to another component that the conductive structure 311 is electrically connected to, in addition to the corresponding electrical device 31. In other words, the corresponding electrical device 31 and the corresponding electrical component are two components that the conductive structure 311 is connected to.

[0122] The conductive structure 311 is a sheet-like structure, and the conductive structure 311 includes a first conductive part 3112, a second conductive part 3113 and a third conductive part 3114 connected in sequence. Among them, the first conductive part 3112 is connected to the corresponding electrical component 31, and is extended toward the side close to the insulating heat-conducting member 32. The third conductive part 3114 is connected to the corresponding electrical component, and is extended toward the side close to the insulating heat-conducting member 32. The second conductive part 3113 is bent and connected to one end of the first conductive part 3112 close to the insulating heat-conducting member 32, and one end of the third conductive part 3114 close to the insulating heat-conducting member 32. That is, the second conductive part 3113 is connected from one end of the first conductive part 3112 close to the insulating heat-conducting member 32 to one end of the third conductive part 3114 close to the insulating heat-conducting member 32, and the second conductive part 3113 is arranged at an angle with the first conductive part 3112, and the second conductive part 3113 is arranged at an angle with the third conductive part 3114.

[0123] According to the layout of the corresponding electrical device 31 and the corresponding electrical component and the shape of the second conductive portion 3113, the first conductive portion 3112 and the third conductive portion 3114 can be connected to different sides of the second conductive portion 3113. That is, the first conductive portion 3112 and the third conductive portion 3114 can be connected to adjacent sides of the second conductive portion 3113, or to opposite sides of the second conductive portion 3113, etc. That is, the overall shape of the conductive structure 311 can be flexibly designed as needed.

[0124] By sequentially bending and connecting the first conductive portion 3112 , the second conductive portion 3113 , and the third conductive portion 3114 , the conductive structure 311 can conveniently and reliably electrically connect the corresponding electrical device 31 to the corresponding electrical component.

[0125] It should also be noted that the second conductive portion 3113 is laid on the side of the shell 33 facing the insulating heat-conducting member 32. That is, the second conductive portion 3113 is arranged on the side of the shell 33 facing the insulating heat-conducting member 32 in a posture of "basically parallel to the side of the shell 33 facing the insulating heat-conducting member 32". In this case, on the side of the second conductive portion 3113 facing the insulating heat-conducting member 32, the second conductive portion 3113 can form the above-mentioned thermal conductive surface 3111, which is used to be thermally connected to the insulating heat-conducting member 32 in a close fit. Based on this, the conductive structure 311 can be directly insulated and thermally connected to the insulating heat-conducting member 32 via the thermal conductive surface 3111 of the second conductive portion 3113, thereby reducing the blocking effect of the shell 33 on the heat-conducting path between the conductive structure 311 and the insulating heat-conducting member 32, and can ensure and increase the thermal contact area between the conductive structure 311 and the insulating heat-conducting member 32.

[0126] By adopting the above scheme, the electrical device 31 can be installed through the housing 33 to protect the electrical device 31, and the installation position and installation state of the electrical device 31 relative to the housing 33 can be stable and firm. Based on this, it is beneficial to ensure and extend the service life of the electrical device 31. In addition, it is convenient for the electrical device 31 to be accurately and stably aligned with the insulating heat conductive member 32, so that the electrical device 31 can accurately and reliably establish an insulating heat conductive connection relationship with the insulating heat conductive member 32. In addition, it is convenient for the electrical device 31 and other electrical components to mutually stabilize the position and state, so that the electrical device 31 can stably and reliably establish an electrical connection relationship with other electrical components.

[0127] By adopting the above solution, the corresponding electrical device 31 can be conveniently and reliably electrically connected to the corresponding electrical component through the conductive structure 311, especially through the first conductive part 3112, the second conductive part 3113 and the third conductive part 3114 that are bent and connected in sequence. On this basis, the second conductive part 3113 can be laid on the side of the shell 33 facing the insulating thermal conductive part 32, and a thermal conductive surface 3111 is provided on the side of the second conductive part 3113 facing the insulating thermal conductive part 32, so that the conductive structure 311 can be directly insulated and thermally connected to the insulating thermal conductive part 32 via the thermal conductive surface 3111 of the second conductive part 3113. Based on this, the blocking effect of the shell 33 on the thermal conductive path between the conductive structure 311 and the insulating thermal conductive part 32 can be reduced, and the thermal conductive contact area between the conductive structure 311 and the insulating thermal conductive part 32 can be guaranteed and increased, thereby ensuring and improving the thermal conductive effect between the conductive structure 311 and the insulating thermal conductive part 32, and facilitating the reliable and effective rapid discharge of a large amount of heat generated by the conductive structure 311 through the insulating thermal conductive part 32, thereby ensuring and improving the heat dissipation performance and heat dissipation efficiency of the distribution device 30 to the electrical device 31.

[0128] See also Figure 5 , Figure 8 , Fig. 9 In some embodiments of the present application, the housing 33 is provided with at least one accommodating cavity 331. At least one electrical device 31 is a relay 312, and the relay 312 is fixedly installed in the accommodating cavity 331. The relay 312 includes a switch unit 3124, and at least part of the outer wall of the switch unit 3124 is exposed in the accommodating cavity 331. The wall of the accommodating cavity 331 is connected to the relay 312 to fix the relay 312 in the accommodating cavity 331. The conductive structure 311 of the relay 312 is arranged outside the accommodating cavity 331, and the second conductive part 3113 of the relay 312 is arranged on the outer side of the accommodating cavity 331 close to the insulating heat conductive member 32.

[0129] It should be noted that the housing 33 is provided with at least one accommodating cavity 331, and the accommodating cavity 331 can be used to fix and install the relay 312. The accommodating cavity 331 has an opening, and the opening of the accommodating cavity 331 can be used for the relay 312 to be taken in and put into the accommodating cavity 331. Among them, the opening of the accommodating cavity 331 can be set on any side of the housing 33. Among them, when there are at least two accommodating cavities 331, the openings of at least two accommodating cavities 331 can be set on the same side of the housing 33, and can also be set on different sides of the housing 33.

[0130] It should also be noted that at least one electrical device 31 is a relay 312. A relay 312 is an electrical control device that causes a predetermined step change in a controlled quantity in an electrical output circuit when a change in an input quantity (excitation quantity) reaches a specified requirement. The relay 312 may include a main positive relay 3121, a main negative relay 3122, and the like.

[0131] The relay 312 includes a contact 3125 and a switch unit 3124, wherein the contact 3125 is used to be connected to the high-voltage circuit, and the switch unit 3124 is used to control the contact 3125 to be closed or disconnected. By closing or disconnecting the contact 3125, the on-off of the high-voltage circuit can be controlled. In some embodiments, the switch unit 3124 can be energized to generate an electromagnetic force, causing the contact 3125 to be closed or disconnected. For example, the switch unit 3124 may include an iron core 31241, and a coil 31242 wound around the outside of the iron core 31241. The coil 31242 can generate an electromagnetic force when current is passed, causing the contact 3125 to be closed or disconnected. Of course, in other embodiments, the switch unit 3124 may adopt other structural forms, or may adopt other principles to achieve the control of the contact 3125 to be closed or disconnected.

[0132] It should also be noted that the relay 312 can be fixedly installed in the accommodating cavity 331. The number of relays 312 can be greater than or equal to the number of accommodating cavities 331, so that at least some relays 312 can be fixedly installed in each accommodating cavity 331 one by one.

[0133] The relay 312 fixedly installed in the accommodating cavity 331 can expose at least part of the outer wall of the switch unit 3124 in the accommodating cavity 331. The outer wall of the switch unit 3124 includes the exposed outer surface parts of the components of the switch unit 3124. For example, the switch unit 3124 includes an iron core 31241 and a coil 31242 wound around the outside of the iron core 31241; if the outer circumference of the iron core 31241 is completely wound and blocked by the coil 31242, the outer wall of the switch unit 3124 mainly includes the outer circumference of the outermost circle of the coil 31242; if the outer circumference of the iron core 31241 is partially wound and blocked by the coil 31242, the outer wall of the switch unit 3124 includes the outer circumference of the outermost circle of the coil 31242 and the outer circumference of the iron core 31241 that is not blocked by the coil 31242. For another example, the switch unit 3124 includes an iron core 31241, a coil 31242 wound around the outside of the iron core 31241, and a bracket 31243 for supporting and fixing the iron core 31241. Then, the outer wall of the switch unit 3124 may include the outer surface of the bracket 31243, the outer peripheral surface of the outermost circle of the coil 31242 not blocked by the bracket 31243, and the outer peripheral surface of the iron core 31241 not blocked by the bracket 31243 and the coil 31242.

[0134] Based on this, the relay 312 fixedly installed in the accommodating cavity 331 can be protected by replacing its own shell structure with the wall of the accommodating cavity 331. Thus, the shell structure of the relay 312 itself can be omitted, that is, the relay 312 fixedly installed in the accommodating cavity 331 is a shellless relay 312.

[0135] On this basis, the wall of the accommodating cavity 331 can be connected to the relay 312 located therein, so as to fix the relay 312 to the accommodating cavity 331 and restrict the relay 312 from escaping from the accommodating cavity 331, especially restricting the relay 312 from escaping from the accommodating cavity 331 due to vibration during operation. Among them, the wall of the accommodating cavity 331 can be connected to the relay 312 by a detachable connection method or a fixed connection method, so as to fix the relay 312 to the accommodating cavity 331. Among them, the detachable connection method can adopt, but is not limited to, snap-on connection, screw locking, etc. Among them, the fixed connection method can adopt, but is not limited to, bonding, etc.

[0136] By adopting the above scheme, the relay 312 can be accommodated in the accommodating cavity 331 of the housing 33, and the wall of the accommodating cavity 331 is connected to the relay 312, so as to realize fixing the relay 312 in the accommodating cavity 331. On this basis, the relay 312 fixedly installed in the accommodating cavity 331 can be protected by exposing at least part of the outer wall of the switch unit 3124 in the accommodating cavity 331, so as to replace its own shell structure with the wall of the accommodating cavity 331. Based on this, the shell structure of the relay 312 itself can be effectively omitted on the basis of ensuring that the housing 33 can play the role of accommodating, limiting, fixing, and protecting the relay 312, so as to facilitate the compact overall layout of the housing 33 and the relay 312, so as to facilitate the formation of an integrated, miniaturized, lightweight, and simplified power distribution device 30, which can effectively reduce the design margin, space waste, and occupied space of the power distribution device 30, and can effectively reduce the weight of the power distribution device 30, which can help reduce the production cost of the power distribution device 30.

[0137] It should also be noted that the conductive structure 311 of the relay 312, i.e., the conductive structure 311 used to electrically connect the relay 312 to other electrical components, is disposed outside the accommodating cavity 331 without occupying additional space inside the accommodating cavity 331. In particular, the second conductive portion 3113 of the conductive structure 311 of the relay 312 is disposed outside the accommodating cavity 331 near the insulating heat conductive member 32.

[0138] By adopting the above solution, the conductive structure 311 of the relay 312 can be arranged outside the accommodating cavity 331, so that the conductive structure 311 can electrically connect the relay 312 to other electrical components without occupying additional space inside the accommodating cavity 331. Based on this, the design margin and space waste between the housing 33 and the relay 312 can be reduced, and the assembly and matching of the housing 33, the relay 312, the conductive structure 311 of the relay 312, and the electrical components connected to the conductive structure 311 of the relay 312 can be facilitated, and the conductive structure 311 can conveniently and reliably electrically connect the relay 312 to other electrical components. On this basis, the second conductive part 3113 of the relay 312 can be arranged on the outside of the accommodating cavity 331 close to the insulating thermal conductive part 32, so that the second conductive part 3113 of the relay 312 can be exposed on the outside of the accommodating cavity 331 close to the insulating thermal conductive part 32, so as to facilitate the direct insulated and thermally conductive connection between the conductive structure 311 of the relay 312 and the insulating thermal conductive part 32 via the second conductive part 3113. As a result, the blocking effect of the wall of the accommodating cavity 331 on the thermal path between the conductive structure 311 of the relay 312 and the insulating thermal conductive part 32 can be reduced, the thermal contact area between the conductive structure 311 of the relay 312 and the insulating thermal conductive part 32 can be increased, and the thermal conductivity effect between the relay 312 and the insulating thermal conductive part 32 can be improved, so that the heat generated by the relay 312 and its conductive structure 311 can be quickly and reliably and effectively discharged through the insulating thermal conductive part 32, the heat dissipation performance and heat dissipation efficiency of the distribution device 30 to the relay 312 can be improved, and the risk of thermal failure of the relay 312 can be reduced.

[0139] See also Figure 5 , Figure 6 , Fig. 9 In some embodiments of the present application, at least two accommodating chambers 331 are provided, and at least two accommodating chambers 331 are arranged adjacent to each other. The housing 33 is provided with at least one insulating structure 332, and the insulating structure 332 is arranged between two adjacent accommodating chambers 331, and is used to separate the contacts 3125 of the corresponding two relays 312.

[0140] It should be noted that there are at least two accommodating cavities 331, and a relay 312 is fixedly installed in each accommodating cavity 331. In theory, at least two accommodating cavities 331 can be flexibly arranged. Due to the compact layout, in some cases, there are at least two accommodating cavities 331 arranged adjacent to each other, and the shellless relays 312 in the two adjacent accommodating cavities 331 will be close to each other, especially the contacts 3125 of the two adjacent relays 312 will be close to each other.

[0141] Based on this, the housing 33 may be provided with an insulating structure 332 between the two adjacently arranged accommodating cavities 331. At least one insulating structure 332 may be provided between each group of two adjacently arranged accommodating cavities 331. The insulating structure 332 includes an insulating material, has insulating properties, and can play an insulating role. The insulating structure 332 can insulate and separate the accommodating cavities 331 on both sides thereof, and in particular can insulate and separate the two relays 312 correspondingly installed in the two accommodating cavities 331, and in particular can insulate and separate the contacts 3125 corresponding to the two relays 312, thereby improving the insulation between the contacts 3125 of the relays 312 located on opposite sides of the insulating structure 332.

[0142] The structure of the insulating structure 332 can be designed in a variety of ways. For example, the insulating structure 332 can be a frame-shaped structure connected end to end.

[0143] The insulating structure 332 is an integrally formed component of the housing 33 , and may also be a split-formed component.

[0144] By adopting the above solution, the housing 33 can be provided with an insulating structure 332 between two adjacent accommodating cavities 331, so that the two adjacent accommodating cavities 331 can be insulated and separated by the insulating structure 332, thereby the two relays 312 correspondingly installed in the two accommodating cavities 331 can be insulated and separated by the insulating structure 332, and in particular, the contacts 3125 of the corresponding two relays 312 can be insulated and separated. Thus, the insulation between the contacts 3125 of the two adjacent housingless relays 312 can be effectively improved, the risk of short circuit can be reduced, and the reliability and safety of the power distribution device 30 can be improved.

[0145] See also Figure 3 , Figure 5 , Figure 6 In some embodiments of the present application, the power distribution device 30 includes a base 34 for being arranged on the heat exchanger 40. The insulating heat conductive member 32 is mounted on the base 34. The surface of the insulating heat conductive member 32 facing away from the electrical device 31 is exposed on the base 34 and connected to the heat exchanger 40.

[0146] It should be noted that when the power distribution device 30 is disposed on the heat exchanger 40, the power distribution device 30 is mainly disposed on the heat exchanger 40 with the base 34. The base 34 is a component for at least mounting and fixing the insulating heat conductive member 32.

[0147] The electrical device 31 is located on the side of the base 34 away from the heat exchanger 40. In some embodiments, the electrical device 31 can be mounted on the housing 33 and fixed via the connection between the housing 33 and the base 34, and the mounting position and state relative to the base 34 are substantially stable.

[0148] The insulating heat conductive member 32 is mounted on the base 34. The mounting method between the insulating heat conductive member 32 and the base 34 can be flexibly designed. The side of the insulating heat conductive member 32 facing the electrical device 31 is insulated and thermally connected to the electrical device 31. The surface of the insulating heat conductive member 32 facing away from the electrical device 31 is exposed on the side of the base 34 facing the heat exchanger 40, and is thermally connected to the heat exchanger 40.

[0149] By adopting the above scheme, the insulating heat conductive part 32 can be installed and fixed through the base 34, so that the installation position and installation state of the insulating heat conductive part 32 relative to the base 34 are stable and firm, so that the insulating heat conductive part 32 and the electrical device 31 can be accurately and stably aligned, and the insulating heat conductive part 32 and the electrical device 31 can be accurately and reliably established. On this basis, since the insulating heat conductive part 32 is insulated and thermally connected to the electrical device 31 on the side facing the electrical device 31, and the surface of the insulating heat conductive part 32 away from the electrical device 31 is exposed to the base 34 and thermally connected to the heat exchanger 40, it is convenient for the insulating heat conductive part 32 to be directly insulated and thermally connected between the electrical device 31 and the heat exchanger 40, thereby reducing the blocking effect of the base 34 on the heat conduction path of the insulating heat conductive part 32, and ensuring and improving the heat conduction effect of the insulating heat conductive part 32 between the electrical device 31 and the heat exchanger 40.

[0150] Of course, in other embodiments, the power distribution device 30 may not include the base 34 , but the insulating heat conductive member 32 may be mounted and fixed on other components of the power distribution device 30 .

[0151] See also Figure 3 , Figure 5 , Figure 6 In some embodiments of the present application, the insulating heat conductive member 32 is embedded in the base 34 .

[0152] It should be noted that part or all of the insulating heat conductive member 32 is embedded in the base 34. The side of the insulating heat conductive member 32 facing the electrical device 31 is insulated and thermally connected to the electrical device 31. The surface of the insulating heat conductive member 32 facing away from the electrical device 31 is exposed on the side of the base 34 facing the heat exchanger 40, and is thermally connected to the heat exchanger 40.

[0153] By adopting the above scheme, on the basis of the previous embodiment, at least a part of the insulating heat conductive member 32 can be embedded in the base 34. Based on this, on the one hand, at least a part of the insulating heat conductive member 32 can share a space with the base 34, thereby saving the space occupied by both the insulating heat conductive member 32 and the base 34. On the other hand, it is convenient for the insulating heat conductive member 32 to pass through the base 34 and directly connect the electrical device 31 and the heat exchanger 40 in an insulated and heat-conductive manner, thereby reducing the blocking effect of the base 34 on the heat conduction path of the insulating heat conductive member 32, which can help to ensure and improve the heat conduction effect of the insulating heat conductive member 32 between the electrical device 31 and the heat exchanger 40.

[0154] See also Figure 5 , Figure 6 , Figure 8 In some embodiments of the present application, a first limiting structure 341 is provided on a side of the base 34 facing the electrical component 31 , for limiting the portion of the electrical component 31 connected to the insulating heat conductive member 32 .

[0155] It should be noted that the side of the base 34 facing the electrical device 31 is provided with a first limiting structure 341. The structure of the first limiting structure 341 can be designed in a variety of ways, for example, the first limiting structure 341 can be a hole structure, a groove structure, a frame structure, etc.

[0156] The part of the electrical device 31 used for thermal connection with the insulating heat conductive member 32 (such as the second conductive portion 3113 mentioned above) can be limitedly installed in the first limiting structure 341, and is insulated and thermally connected to the surface of the insulating heat conductive member 32 at the corresponding first limiting structure 341. In the case where the part of the electrical device 31 used for thermal connection with the insulating heat conductive member 32 can be limited in the first limiting structure 341, the shape of the part of the electrical device 31 and the shape of the first limiting structure 341 can be the same or different, and the fit between the part of the electrical device 31 and the first limiting structure 341 can be a clearance fit, a transition fit, or an interference fit.

[0157] By adopting the above scheme, the first limiting structure 341 can be set on the base 34, so that the part of the electrical device 31 used for thermal connection with the insulating heat conductive member 32 can be limited and installed in the first limiting structure 341, and the surface of the insulating heat conductive member 32 corresponding to the first limiting structure 341 can be insulated and thermally connected. Based on this, the first limiting structure 341 of the base 34 can be used to limit and position the part of the electrical device 31 used for thermal connection with the insulating heat conductive member 32, so that it is convenient to quickly and accurately realize the alignment and cooperation of each electrical device 31 and the base 34, and it can promote each electrical device 31 to accurately align with the insulating heat conductive member 32 installed in the base 34, which can facilitate the stabilization of the relative position and relative state between the electrical device 31 and the insulating heat conductive member 32, so that it is convenient for the electrical device 31 and the insulating heat conductive member 32 to accurately and reliably realize the insulating heat conductive connection, and ensure the heat conductive effect between the electrical device 31 and the insulating heat conductive member 32.

[0158] Of course, in other embodiments, the base 34 may not be provided with the first limiting structure 341 , and the surface of the insulating heat conductive member 32 facing the electrical device 31 may be exposed at the corresponding side of the base 34 and thermally connected to at least part of the electrical device 31 .

[0159] See also Figure 5 , Figure 6 , Figure 8In some embodiments of the present application, the first limiting structure 341 is a hole-shaped structure, and the first limiting structure 341 is connected to the surface of the insulating heat-conducting member 32 .

[0160] It should be noted that, when the surface of the insulating heat conductive member 32 facing the electrical device 31 is embedded in the base 34, the first limiting structure 341 can be designed as a hole-shaped structure. The first limiting structure 341 as a hole-shaped structure can be connected to the surface of the insulating heat conductive member 32. In particular, the first limiting structure 341 can extend along the hole depth direction and be connected to the surface of the insulating heat conductive member 32 close to the electrical device 31. Among them, the first limiting structure 341 can be, but not limited to, a rectangular hole, a circular hole, etc.

[0161] In this case, a part of the electrical device 31 can be embedded and limited in the first limiting structure 341 , and is thermally connected to the surface of the insulating heat-conducting member 32 corresponding to the first limiting structure 341 .

[0162] By adopting the above scheme, when the surface of the insulating heat conductive member 32 facing the electrical device 31 is embedded in the base 34, the first limiting structure 341 is set as a hole-shaped structure on the base 34, and the first limiting structure 341 is connected to the surface of the insulating heat conductive member 32, so that the part of the electrical device 31 used for thermal connection with the insulating heat conductive member 32 can be embedded and limited in the first limiting structure 341, and is insulated and thermally connected with the surface of the insulating heat conductive member 32 corresponding to the first limiting structure 341. Based on this, the part of the electrical device 31 used for thermal connection with the insulating heat conductive member 32 can be limited and positioned via the first limiting structure 341, which can facilitate the precise alignment of the electrical device 31 with the insulating heat conductive member 32, and achieve an insulated and thermally connected tightly and reliably with the insulating heat conductive member 32. On this basis, it can also ensure that a part of the electrical component 31 can penetrate into the base 34, and can directly achieve an insulating heat-conducting connection with the insulating heat-conducting member 32 through the base 34, thereby reducing the blocking effect of the base 34 on the heat-conducting path between the electrical component 31 and the insulating heat-conducting member 32, and improving the heat-conducting effect between the insulating heat-conducting member 32 and the electrical component 31. In addition, it can help to compress the combined occupied space of the electrical component 31, the base 34 and the insulating heat-conducting member 32.

[0163] See also Figure 5 , Figure 6 , Figure 8 In some embodiments of the present application, a second limiting structure 342 is provided on the side of the base 34 facing away from the electrical device 31 for limiting the installation of the insulating heat conductive member 32 .

[0164] It should be noted that the side of the base 34 facing away from the electrical device 31 (i.e., the side of the base 34 facing the heat exchanger 40) is provided with a second limiting structure 342. The structure of the second limiting structure 342 can be designed in a variety of ways, for example, the second limiting structure 342 can be a groove structure, a hole structure, a frame structure, etc.

[0165] The insulating heat conductive member 32 is limitedly installed in the second limiting structure 342. In the case where the insulating heat conductive member 32 is limitedly installed in the second limiting structure 342, the shape of the second limiting structure 342 and the shape of the insulating heat conductive member 32 can be the same or different, and the fit between the insulating heat conductive member 32 and the second limiting structure 342 can be a clearance fit, a transition fit, or an interference fit.

[0166] By adopting the above solution, a second limiting structure 342 can be provided on the side of the base 34 away from the electrical device 31, so as to facilitate the insulating heat conductive member 32 to be limitedly installed in the second limiting structure 342. Based on this, the insulating heat conductive member 32 can be limitedly accommodated by the second limiting structure 342 of the base 34, so that the insulating heat conductive member 32 and the base 34 can be assembled quickly and accurately, and the insulating heat conductive member 32 can be accurately aligned with the electrical device 31 to be connected with it by heat conduction, so that the insulating heat conductive member 32 can accurately, stably and reliably play the role of heat conduction.

[0167] See also Figure 5 , Figure 6 , Figure 8 In some embodiments of the present application, the second limiting structure 342 is a groove-shaped structure.

[0168] It should be noted that the side of the base 34 facing away from the electrical device 31 is provided with a second limiting structure 342. The second limiting structure 342 is a groove-shaped structure. The second limiting structure 342 can be, but is not limited to, a rectangular groove, a circular groove, etc. Based on this, the insulating heat conductive member 32 can be embedded in the second limiting structure 342.

[0169] By adopting the above scheme, the second limiting structure 342 with a groove-shaped structure can be set on the base 34, so as to facilitate the insulating heat conductive member 32 to be embedded in the second limiting structure 342. Based on this, the insulating heat conductive member 32 can be limited and positioned via the second limiting structure 342, which can facilitate the precise alignment of the insulating heat conductive member 32 with the base 34 and each electrical component 31, and facilitate the insulating heat conductive member 32 to be closely and reliably connected with each electrical component 31 to achieve insulating heat conduction. On this basis, it can also ensure that at least part of the insulating heat conductive member 32 can be deeply embedded in the base 34, and can be directly connected with the electrical component 31 through the base 34 to achieve insulating heat conduction, thereby reducing the blocking effect of the base 34 on the heat conduction path between the electrical component 31 and the insulating heat conductive member 32, and improving the heat conduction effect between the insulating heat conductive member 32 and the electrical component 31. In addition, it can be beneficial to compress the comprehensive occupied space of the electrical component 31, the base 34 and the insulating heat conductive member 32.

[0170] See also Figure 5 , Figure 6 , Figure 8 In some embodiments of the present application, the second limiting structure 342 is arranged in a one-to-one correspondence with the insulating heat conductive member 32.

[0171] It should be noted that the number of the second limiting structures 342 corresponds to the number of the insulating heat-conducting components 32 , so that each insulating heat-conducting component 32 can be embedded in each second limiting structure 342 one by one.

[0172] By adopting the above scheme, the insulating heat conductive part 32 can be embedded one-to-one through the second limiting structure 342, so as to ensure and improve the limiting and positioning effect of the second limiting structure 342 on the insulating heat conductive part 32, ensure and improve the installation convenience, installation reliability and installation accuracy of the insulating heat conductive part 32, facilitate the insulating heat conductive part 32 to be accurately and reliably insulated and heat-conductingly connected with the corresponding electrical component 31, and facilitate the insulating heat conductive part 32 to reliably play the heat conductive effect.

[0173] Of course, in other embodiments, at least two insulating heat-conducting members 32 may be embedded in one second limiting structure 342 .

[0174] See also Figure 5 , Figure 6 , Figure 8 In some embodiments of the present application, the side of the insulating heat conductive member 32 facing away from the electrical device 31 protrudes out of the notch of the second limiting structure 342 .

[0175] It should be noted that the side of the insulating heat conductive member 32 facing away from the electrical device 31 protrudes from the notch of the second limiting structure 342, which means that when the insulating heat conductive member 32 is embedded in the second limiting structure 342, the side of the insulating heat conductive member 32 facing away from the electrical device 31 protrudes from the notch of the second limiting structure 342. This arrangement can facilitate the side of the insulating heat conductive member 32 facing away from the electrical device 31 to be exposed to the second limiting structure 342 and to be in contact with the heat exchange member 40 (such as Figure 3 Direct thermal connection (as shown).

[0176] By adopting the above solution, when the insulating heat conductive member 32 is embedded in the second limiting structure 342, the side of the insulating heat conductive member 32 facing away from the electrical device 31 can be protruded from the notch of the second limiting structure 342, so that the side of the insulating heat conductive member 32 facing away from the electrical device 31 can be exposed from the second limiting structure 342. Based on this, it is convenient for the side of the insulating heat conductive member 32 facing away from the electrical device 31 to be directly connected to the heat exchanger 40 by heat conduction, thereby reducing the blocking effect of the base 34 on the heat conduction path between the insulating heat conductive member 32 and the heat exchanger 40, which can help to ensure and improve the heat conduction effect between the insulating heat conductive member 32 and the heat exchanger 40. Furthermore, since the side of the insulating heat conductive part 32 facing away from the electrical device 31 protrudes out of the notch of the second limiting structure 342, the dimension of the insulating heat conductive part 32 in the direction of the notch depth of the second limiting structure 342 is greater than the notch depth of the second limiting structure 342. Therefore, even if there is a processing error in the dimension of the insulating heat conductive part 32 in the direction of the notch depth of the second limiting structure 342 or the notch depth of the second limiting structure 342, when the insulating heat conductive part 32 is embedded in the second limiting structure 342, it can basically ensure that the side of the insulating heat conductive part 32 facing away from the electrical device 31 can be exposed to the second limiting structure 342 and directly heat-conductingly connected to the heat exchanger 40. Therefore, based on the setting of this embodiment, it can also be compatible with and allow certain processing errors, and the requirements for the matching accuracy of the insulating heat conductive part 32 and the second limiting structure 342 in the direction of the notch depth of the second limiting structure 342 can be reduced, thereby facilitating the processing and assembly of the insulating heat conductive part 32 and the base 34.

[0177] See also Figure 3 , Fig.10 In some embodiments of the present application, the side of the insulating heat conductive member 32 facing away from the electrical device 31 is flush with the notch of the second limiting structure 342 .

[0178] It should be noted that the side of the insulating heat conductive member 32 facing away from the electrical device 31 is flush with the notch of the second limiting structure 342, which means that when the insulating heat conductive member 32 is embedded in the second limiting structure 342, the side of the insulating heat conductive member 32 facing away from the electrical device 31 is neither recessed nor protruding relative to the notch of the second limiting structure 342, but is flush with the notch of the second limiting structure 342. Such a configuration can facilitate the side of the insulating heat conductive member 32 facing away from the electrical device 31 to be exposed to the second limiting structure 342 and directly connected to the heat exchange member 40 through thermal conductivity.

[0179] By adopting the above solution, when the insulating heat conductive member 32 is embedded in the second limiting structure 342, the side of the insulating heat conductive member 32 facing away from the electrical device 31 can be flush with the notch of the second limiting structure 342, so that the side of the insulating heat conductive member 32 facing away from the electrical device 31 can be exposed from the second limiting structure 342. Based on this, it is convenient for the side of the insulating heat conductive member 32 facing away from the electrical device 31 to be directly connected to the heat exchanger 40 by heat conduction, thereby reducing the blocking effect of the base 34 on the heat conduction path between the insulating heat conductive member 32 and the heat exchanger 40, which can help to ensure and improve the heat conduction effect between the insulating heat conductive member 32 and the heat exchanger 40.

[0180] Of course, in other embodiments, the side of the insulating heat conductive member 32 facing away from the electrical device 31 can be recessed in the notch of the second limiting structure 342 and thermally connected to the heat exchange member 40 via a thermal conductive structure such as a thermal conductive pad.

[0181] See also Figure 5 , Figure 6 , Figure 8 In some embodiments of the present application, the insulating heat conductive member 32 and the base 34 are an integrated structure.

[0182] It should be noted that the insulating heat conductive member 32 and the base 34 can be formed into an integrated structure through, but not limited to, one-piece molding processes such as one-piece injection molding and 3D printing.

[0183] By adopting the above scheme, the insulating heat conductive member 32 and the base 34 can form an integrated structure through an integrated molding process such as integral injection molding and 3D printing. Based on this, the connection reliability, connection tightness, connection stability, and connection strength between the insulating heat conductive member 32 and the base 34 can be effectively enhanced, and the comprehensive structural strength of the insulating heat conductive member 32 and the base 34 can be effectively enhanced, and the assembly process between the insulating heat conductive member 32 and the base 34 can be simplified, and the assembly convenience and assembly efficiency between the insulating heat conductive member 32 and the base 34 can be improved. In addition, based on the setting of this embodiment, the insulating heat conductive member 32 and the base 34 can also be integrally connected and sealed, so that the connection gap between the insulating heat conductive member 32 and the base 34 can be conveniently, quickly, and reliably sealed, which can improve the sealing between the insulating heat conductive member 32 and the base 34, and reduce the risk of liquid penetrating from the connection gap between the insulating heat conductive member 32 and the base 34 to the electrical device 31 and causing a high-voltage short circuit and ignition.

[0184] Of course, in other embodiments, the insulating heat conductive member 32 and the base 34 can be separately formed and then separately connected, and even the connection structure between the insulating heat conductive member 32 and the base 34 can be designed, or components such as sealing rings and sealants can be used to ensure the sealing between the insulating heat conductive member 32 and the base 34. Among them, the separate connection method between the insulating heat conductive member 32 and the base 34 can be designed in a variety of ways, such as snap-fit, bonding, bolt locking connection, etc.

[0185] See also Figure 5 , Figure 6 , Figure 8 In some embodiments of the present application, the DC breakdown strength of the insulating thermal conductive member 32 is 15Kv / mm to 17Kv / mm.

[0186] It should be noted that the DC breakdown strength of the insulating thermal conductive member 32 represents the ability of the insulating thermal conductive member 32 to withstand voltage, and represents that the insulating thermal conductive member 32 is not easily broken down or damaged and loses its insulating function when subjected to an electric field strength less than the DC breakdown strength.

[0187] Among them, a DC electric field can be applied to the insulating thermal conductor 32 and the voltage can be gradually increased until the insulating thermal conductor 32 is broken down, damaged and loses its insulating function. Then, the "DC breakdown strength of the insulating thermal conductor 32" can be obtained according to the electric field strength to which the insulating thermal conductor 32 is subjected. For example, in a specific embodiment, the insulating thermal conductor 32 can be placed between the ground electrode and the high-voltage electrode, and the ground electrode and the high-voltage electrode with the insulating thermal conductor 32 therebetween are immersed in an oil tank filled with oil such as silicone oil, and a DC power supply is connected to the ground electrode and the high-voltage electrode; then, the oil in the oil tank is heated to a predetermined measurement temperature, and this predetermined measurement temperature may correspond to the temperature of the insulating thermal conductor 32 in actual operation; then, when the insulating thermal conductor 32 is heated to the predetermined measurement temperature, a DC electric field is applied to the insulating thermal conductor 32 between the ground electrode and the high-voltage electrode through the DC power supply; then, the voltage is gradually increased, and when the insulating thermal conductor 32 is broken down, damaged and loses its insulating function, the electric field strength applied by the DC power supply is the measured "DC breakdown strength of the insulating thermal conductor 32".

[0188] In this embodiment, the DC breakdown strength of the insulating heat conductive member 32 is not less than 15Kv / mm, that is, the DC breakdown strength of the insulating heat conductive member 32 is greater than or equal to 15Kv / mm. Moreover, the DC breakdown strength of the insulating heat conductive member 32 is not greater than 17Kv / mm, that is, the DC breakdown strength of the insulating heat conductive member 32 is less than or equal to 17Kv / mm. For example, the DC breakdown strength of the insulating heat conductive member 32 may be 15Kv / mm, 15.5Kv / mm, 16Kv / mm, 16.5Kv / mm, 17Kv / mm, and so on. In other words, the insulating heat conductive member 32 is not easily broken down, damaged, or loses its insulating function when subjected to an electric field strength of 15Kv / mm to 17Kv / mm.

[0189] By adopting the above solution, the DC breakdown strength of the insulating heat conductive member 32 can be set to 15Kv / mm-17Kv / mm, so that the insulating heat conductive member 32 can have a better voltage withstand capability than conventional insulating heat conductive adhesive. Based on this, the heat exchange and heat conduction to the electrical device 31 and the heat exchange member 40 (such as Figure 3 As shown), the risk of the insulating heat conductive part 32 being broken down by high voltage during the operation of the electrical device 31 is effectively reduced, thereby effectively protecting and extending the service life of the insulating heat conductive part 32, effectively reducing the risk of thermal failure of the electrical device 31, and effectively protecting and improving the service life and safety of the distribution device 30.

[0190] See also Figure 5 , Figure 6 , Figure 8 In some embodiments of the present application, the DC breakdown strength of the insulating thermal conductive member 32 is 15.1 Kv / mm to 16.6 Kv / mm.

[0191] It should be noted that the DC breakdown strength of the insulating heat-conducting member 32 is 15.1Kv / mm~16.6Kv / mm. For example, the DC breakdown strength of the insulating heat-conducting member 32 may be 15.1Kv / mm, 15.2Kv / mm, 15.3Kv / mm, 15.4Kv / mm, 15.5Kv / mm, 15.6Kv / mm, 15.7Kv / mm, 15.8Kv / mm, 15.9Kv / mm, 16.0Kv / mm, 16.1Kv / mm, 16.2Kv / mm, 16.3Kv / mm, 16.4Kv / mm, 16.5Kv / mm, 16.6Kv / mm and the like.

[0192] By adopting the above scheme, by making the DC breakdown strength of the insulating heat conductive member 32 15.1Kv / mm~16.6Kv / mm, on the one hand, the insulating heat conductive member 32 can have a better voltage tolerance capability than conventional insulating heat conductive adhesives, thereby effectively reducing the risk of high voltage breakdown of the insulating heat conductive member 32 during the operation of the electrical device 31, effectively ensuring and extending the service life of the insulating heat conductive member 32, effectively reducing the risk of thermal failure of the electrical device 31, and effectively ensuring and improving the service life and use safety of the power distribution device 30. On the other hand, the requirements for the voltage tolerance capability of the insulating heat conductive member 32 can be measured accordingly, thereby effectively reducing the manufacturing difficulty and cost of the insulating heat conductive member 32, and effectively reducing the cost of the power distribution device 30.

[0193] See also Figure 5 , Figure 6 , Figure 8 In some embodiments of the present application, the insulating heat conductive member 32 is a phase change material member.

[0194] It should be noted that the insulating heat-conducting member 32 is a phase-change material member, that is, the insulating heat-conducting member 32 includes a phase-change material, wherein the phase-change material may be, but is not limited to, a ceramic phase-change material.

[0195] By adopting the above-mentioned scheme, the insulating heat conductive part 32 can be made of a phase change material, so that the insulating heat conductive part 32 can change the material state and absorb or release a large amount of latent heat without changing the temperature based on the phase change characteristics of the phase change material. Based on this, the thermal conductivity and heat dissipation performance of the insulating heat conductive part 32 can be effectively guaranteed and improved, thereby effectively guaranteeing and improving the heat dissipation performance and heat dissipation efficiency of the distribution device 30 to the electrical device 31, effectively reducing the risk of thermal failure of the electrical device 31, and effectively guaranteeing and extending the service life of the electrical device 31 and the distribution device 30.

[0196] See also Figure 5 , Figure 6 , Figure 8In some embodiments of the present application, the insulating heat-conducting member 32 is a ceramic member.

[0197] It should be noted that the insulating heat-conducting member 32 is a ceramic member, that is, the insulating heat-conducting member 32 is made of ceramic. Among them, ceramic has excellent thermal conductivity and even has phase change characteristics. Based on the phase change characteristics, the material state can be changed and a large amount of latent heat can be absorbed or released without changing the temperature. Based on this, the thermal conductivity and heat dissipation performance of the insulating heat-conducting member 32 can be improved by making the insulating heat-conducting member 32 a ceramic member.

[0198] Ceramics also have excellent voltage withstand capability and can withstand a certain electric field strength without being easily broken down or damaged and losing the insulation function. Based on this, the voltage withstand capability of the insulating thermal conductive member 32 can be improved by making the insulating thermal conductive member 32 a ceramic member, which can reduce the risk of the insulating thermal conductive member 32 being broken down by high voltage during the operation of the electrical device 31.

[0199] By adopting the above scheme, by making the insulating heat conductive member 32 a ceramic member, on the one hand, the thermal conductivity and heat dissipation performance of the insulating heat conductive member 32 can be effectively improved, thereby effectively improving the heat dissipation performance and heat dissipation efficiency of the power distribution device 30 to the electrical device 31, effectively reducing the risk of thermal failure of the electrical device 31, and effectively ensuring and extending the service life of the electrical device 31 and the power distribution device 30. On the other hand, the insulating heat conductive member 32 can have a better voltage tolerance capability than conventional insulating heat conductive adhesives, thereby effectively reducing the risk of the insulating heat conductive member 32 being broken down by high voltage during the operation of the electrical device 31, effectively ensuring and extending the service life of the insulating heat conductive member 32, and effectively ensuring and improving the service life and use safety of the power distribution device 30.

[0200] Of course, in other embodiments, the insulating heat-conducting member 32 may be made of other heat-conducting materials.

[0201] See also Figure 5 , Figure 6 , Figure 8 In some embodiments of the present application, the insulating thermal conductor 32 includes at least one of aluminum oxide ceramics, aluminum nitride ceramics, and silicon nitride ceramics.

[0202] By adopting the above scheme, the insulating thermal conductive component 32 can include at least one of alumina ceramics, aluminum nitride ceramics and silicon nitride ceramics, so that the insulating thermal conductive component 32 has excellent electrical insulation, thermal conductivity, chemical resistance, wear resistance and low thermal expansion properties, thereby improving the performance and service life of the insulating thermal conductive component 32.

[0203] See also Figure 5 , Figure 6In some embodiments of the present application, at least two electrical components 31 are provided, and one insulating heat-conducting member 32 is provided, and each electrical component 31 is thermally connected to the insulating heat-conducting member 32 .

[0204] It should be noted that at least two electrical components 31 are provided, and the at least two electrical components 31 include one or at least two of a relay 312 , a current sensor 313 , a fuse 314 , and a pre-charging resistor 315 .

[0205] There is one insulating heat-conducting member 32 . Each electrical device 31 is connected to the same insulating heat-conducting member 32 in an insulating and heat-conducting manner, that is, the insulating heat-conducting member 32 can perform heat conduction for at least two electrical devices 31 .

[0206] By adopting the above scheme, at least two electrical components 31 can be thermally connected to the insulating heat conductive member 32, so that the insulating heat conductive member 32 can play a heat conduction effect on at least two electrical components 31. Based on this, on the one hand, the installation area of ​​the insulating heat conductive member 32 can be increased, and the heat conduction effect of the insulating heat conductive member 32 on each electrical component 31 can be guaranteed and improved, thereby ensuring and improving the heat dissipation performance and heat dissipation efficiency of the power distribution device 30 on the electrical components 31, reducing the risk of thermal failure of the electrical components 31, and ensuring and extending the service life of the electrical components 31 and the power distribution device 30. On the other hand, the number of the insulating heat conductive member 32 can be reduced, which can facilitate the simplification of the assembly of the insulating heat conductive member 32, thereby facilitating and improving the assembly convenience and assembly efficiency of the power distribution device 30.

[0207] See also Figure 4 , Fig.11 In some embodiments of the present application, the insulating heat conductive member 32 and the electrical device 31 are arranged in a one-to-one correspondence.

[0208] It should be noted that there is one or at least two electrical components 31. The electrical components 31 include at least one of a relay 312, a current sensor 313, a fuse, an insurance 314, and a pre-charging resistor 315.

[0209] The number of insulating heat conductive parts 32 corresponds to the number of electrical components 31 , so that each insulating heat conductive part 32 can be insulated and heat-conductively connected to each electrical component 31 one-to-one, that is, each insulating heat conductive part 32 can perform heat conduction function on each electrical component 31 one-to-one.

[0210] By adopting the above scheme, the insulating heat conductive parts 32 and the electrical devices 31 can be arranged one-to-one in a corresponding manner, so that each insulating heat conductive part 32 can be insulated and heat-conductively connected to each electrical device 31 one-to-one, so that each insulating heat conductive part 32 can play a one-to-one heat conduction effect on each electrical device 31. Based on this, the heat conduction effect of each insulating heat conductive part 32 on each electrical device 31 can be guaranteed respectively, and even the size and shape of the corresponding insulating heat conductive part 32 can be designed in a targeted manner according to the heat conduction requirements of the electrical device 31, thereby effectively guaranteeing and improving the heat dissipation performance and heat dissipation efficiency of the power distribution device 30 on the electrical device 31, reducing the risk of thermal failure of the electrical device 31, and guaranteeing and extending the service life of the electrical device 31 and the power distribution device 30. In addition, based on the arrangement of this embodiment, the total consumables of each insulating heat conductive part 32 can be saved accordingly, thereby saving the total cost of each insulating heat conductive part 32 accordingly, and saving the cost of the power distribution device 30 accordingly.

[0211] See also Figure 4 , Fig.12 In some embodiments of the present application, the insulating heat conductive member 32 is locked and connected to the electrical device 31 via a fastener 35 .

[0212] It should be noted that the electrical device 31 and the insulating heat conductive member 32 can be locked and connected together by one or at least two fasteners 35 to enhance the connection strength and tightness between the electrical device 31 and the insulating heat conductive member 32. The fastener 35 can be, but is not limited to, a bolt.

[0213] By adopting the above scheme, the electrical device 31 and the insulating heat conductive member 32 can be locked and connected together via the fastener 35 to enhance the connection strength and tightness between the electrical device 31 and the insulating heat conductive member 32. Based on this, it is beneficial to enhance the tightness and reliability of the thermal connection between the electrical device 31 and the insulating heat conductive member 32, so that the insulating heat conductive member 32 can reliably and effectively conduct the heat generated by the electrical device 31 to the heat exchange member 40, thereby effectively ensuring and improving the heat dissipation performance and heat dissipation efficiency of the power distribution device 30 to the electrical device 31, effectively reducing the risk of thermal failure of the electrical device 31, and effectively ensuring and extending the service life of the electrical device 31 and the power distribution device 30.

[0214] See also Figure 4 , Fig.13 In some embodiments of the present application, the insulating heat-conducting member 32 is bonded to the electrical device 31 by a heat-conducting adhesive 36 .

[0215] It should be noted that a thermally conductive adhesive 36 may be provided at the connection between the electrical component 31 and the insulating thermally conductive member 32 so as to bond the electrical component 31 and the insulating thermally conductive member 32 together through the thermally conductive adhesive 36 to enhance the connection strength and tightness between the electrical component 31 and the insulating thermally conductive member 32 .

[0216] By adopting the above scheme, the electrical device 31 and the insulating heat conductive member 32 can be bonded together by the heat conductive adhesive 36 to enhance the connection strength and tightness between the electrical device 31 and the insulating heat conductive member 32. Based on this, it is beneficial to enhance the tightness and reliability of the thermal connection between the electrical device 31 and the insulating heat conductive member 32, so that the insulating heat conductive member 32 can reliably and effectively conduct the heat generated by the electrical device 31 to the heat exchange member 40, thereby effectively ensuring and improving the heat dissipation performance and heat dissipation efficiency of the power distribution device 30 to the electrical device 31, effectively reducing the risk of thermal failure of the electrical device 31, and effectively ensuring and extending the service life of the electrical device 31 and the power distribution device 30.

[0217] See also Figure 6 In some embodiments of the present application, the electrical device 31 includes at least one of a relay 312 , a current sensor 313 , a fuse 314 , and a pre-charging resistor 315 .

[0218] It should be noted that the relay 312 is an electrical control device, which is an electrical appliance that causes a predetermined step change in the controlled quantity in the electrical output circuit when the change in the input quantity (excitation quantity) reaches the specified requirement. The relay 312 may include a main positive relay 3121, a main negative relay 3122, a pre-charge relay 3123, etc.

[0219] The current sensor 313 is a detection device that can sense the information of the measured current and can transform the sensed information into an electrical signal or other required form of information output that meets certain standards according to a certain rule to meet the requirements of information transmission, processing, storage, display, recording and control. Among them, the current sensor 313 may include a shunt 3131, a Hall current sensor 3132, etc.

[0220] A fuse is an electrical device that uses the heat generated by itself to melt the fuse and disconnect the circuit when the current exceeds the specified value.

[0221] Insurance 314, also known as a fuse, is a safety component used to protect the electrical device 31 from damage when a circuit is overloaded (such as too much current or too much voltage) or short-circuited. In some embodiments, insurance 314 can be used as a fuse.

[0222] The pre-charging resistor 315 is a circuit element used to limit the size of the charging current in the initial stage of charging (ie, the power supply charges the capacitor) to reduce the risk of the charging current causing a large impact on the relay 312 and other components.

[0223] By adopting the above scheme, by making the electrical device 31 include at least one of the relay 312, the current sensor 313, the fuse, the insurance 314, and the pre-charging resistor 315, it can be ensured that the electrical device 31 includes an important component for high voltage distribution of the battery 1 in the power distribution device 30, and the electrical device 31 can be ensured to be the main heat generating component. Based on this, the insulation and heat conduction connection between the comprehensive insulating heat conductive member 32 and the electrical device 31 can ensure and improve the heat dissipation performance and heat dissipation efficiency of the power distribution device 30 for the electrical devices 31 such as the relay 312, the current sensor 313, the fuse, the insurance 314, and the pre-charging resistor 315, etc., can effectively reduce the risk of thermal failure of the electrical devices 31 such as the relay 312, the current sensor 313, the fuse, the insurance 314, and the pre-charging resistor 315, etc., and can ensure and extend the service life of the electrical devices 31 such as the relay 312, the current sensor 313, the fuse, the insurance 314, and the pre-charging resistor 315.

[0224] See also Figure 6 , Fig.14 In some embodiments of the present application, at least two electrical devices 31 are provided. The gap between the electrical device 31 and the electrical device 31 disposed adjacent thereto is a first gap 316. The electrical device 31 is provided with a first connector 317. The first connector 317 includes a first connector portion 3171 for detachably connecting to an external connector. The first connector portion 3171 is located outside each first gap 316 of the corresponding electrical device 31.

[0225] It should be noted that at least two electrical devices 31 are provided, and at least two electrical devices 31 can be flexibly arranged. For any electrical device 31, the gap between it and the electrical device 31 disposed adjacent thereto can be used as the first gap 316. Of course, for any electrical device 31, when at least two electrical devices 31 disposed adjacent thereto are distributed around it, it can have at least two first gaps 316. Among them, the sizes of the first gaps 316 of the same electrical device 31 can be set the same or different, and the sizes of the first gaps 316 of different electrical devices 31 can be set the same or different.

[0226] It should also be noted that the electrical device 31 is provided with at least one first connector 317, and the first connector 317 is used to electrically connect to an external connector (such as the first connector 317 of another electrical device 31, or the second connector 372 below). One end of the first connector 317 is mechanically and electrically connected to the electrical device 31, and the other end of the first connector 317 is provided with a first connecting portion 3171. The first connecting portion 3171 is used for detachable mechanical and electrical connection with an external connector. Among them, the first connecting portion 3171 can be detachably mechanically and electrically connected to an external connector by means of, but not limited to, plug-in, snap-on, elastic abutment, etc.

[0227] The first connection portion 3171 is located outside each first gap 316 of the corresponding electrical device 31, that is, the first connection portion 3171 and each first gap 316 of the corresponding electrical device 31 are spatially staggered, the first connection portion 3171 does not occupy the space of each first gap 316 of the electrical device 31, and the first connection portion 3171 is located outside each first gap 316 of the corresponding electrical device 31. Based on this, on one hand, by arranging the first connection portion 3171 outside each first gap 316 of the corresponding electrical device 31, it is convenient to perform the connection operation of the first connection portion 3171 in the space outside each first gap 316 of the corresponding electrical device 31, thereby ensuring and improving the convenience of connecting and disconnecting the first connection portion 3171. On the other hand, since there is no need to set the first connecting portion 3171 in each first gap 316 of the electrical device 31, nor is there any need to provide a connection operation space for the first connecting portion 3171, the size of each first gap 316 of the electrical device 31 can be compressed as needed, which can help to compress the gap between the electrical device 31 and the electrical device 31 arranged adjacent to it, thereby facilitating the compactness of the overall layout of each electrical device 31.

[0228] By adopting the above scheme, when the gap between the electrical device 31 and the electrical device 31 disposed adjacent thereto is defined as the first gap 316, by disposing the first connection part 3171 outside each first gap 316 of the corresponding electrical device 31, on the one hand, it is convenient to perform the connection operation of the first connection part 3171 in the space outside each first gap 316 of the corresponding electrical device 31, thereby ensuring and improving the convenience of connecting and disconnecting the first connection part 3171. On the other hand, it is possible to make it unnecessary to provide a space for accommodating the first connection part 3171 or a space for connection operation of the first connection part 3171 in each first gap 316 of the electrical device 31, thereby facilitating the compression of the gap between the electrical device 31 and the electrical device 31 disposed adjacent thereto as required, thereby facilitating the compactness of the overall layout of each electrical device 31, thereby facilitating the formation of an integrated, compact, and miniaturized power distribution device 30.

[0229] See also Figure 6 , Fig.14 In some embodiments of the present application, the power distribution device 30 includes a connector 37 and a second connecting member 372, the second connecting member 372 includes a conductive connecting portion 3722 and a second connecting portion 3721, one end of the conductive connecting portion 3722 is connected to the connector 37, and the other end of the conductive connecting portion 3722 is connected to the second connecting portion 3721, and the second connecting portion 3721 is bent toward the corresponding electrical device 31 for detachable connection with the corresponding first connecting portion 3171.

[0230] It should be noted that the connector 37 is used to connect to the battery unit 10 (such as Figure 3The connector 37 is provided with a connection terminal for connecting components such as a battery unit 10, etc. The installation position and installation state of the connector 37 relative to the electrical component 31 are stable and firm. The connector 37 has a socket 371, and the socket 371 is exposed outside the power distribution device 30, so that the connection terminals of components such as the battery unit 10 can be plugged into the socket 371 to achieve electrical connection with the connector 37.

[0231] In some embodiments, the power distribution device 30 may be provided with two connectors 37, one of which is used for high-voltage sampling, and the other connector 37 is used for low-voltage control. Of course, in other embodiments, the power distribution device 30 may be provided with only one connector 37, which integrates the high-voltage sampling and low-voltage control functions. Of course, in other embodiments, the power distribution device 30 may also be provided with three or more connectors 37, and the functions of each connector 37 may be the same or different.

[0232] It should also be noted that, according to the number and position of the electrical devices 31 to be connected to the connector 37, the connector 37 may be provided with one or at least two second connectors 372. The second connector 372 includes a conductive connecting portion 3722, one end of which is electrically connected to the connector 37, and the other end of which is extended toward the electrical device 31 to be connected, and the extension path of the conductive connecting portion 3722 may be a straight line or a curve.

[0233] At one end of the conductive connection part 3722 close to the corresponding electrical device 31, the second connector 372 can be bent to form a second connection part 3721. The conductive connection part 3722 and the corresponding second connection part 3721 can be connected in one piece or in a separate piece. The second connection part 3721 is bent toward the corresponding electrical device 31, and is used for detachable mechanical and electrical connection with the first connection part 3171 of the corresponding electrical device 31. The second connection part 3721 can be detachably mechanically and electrically connected with the corresponding first connection part 3171 by, but not limited to, plugging, snapping, elastic abutment, etc.

[0234] By adopting the above scheme, when each electrical device 31 is installed in the power distribution device 30, the conductive connection part 3722 of the second connector 372 can be connected to the connector 37, and the second connection part 3721 of the second connector 372 can be detachably connected to the first connection part 3171 of the corresponding electrical device 31, so as to conveniently, quickly and reliably realize the electrical connection between the connector 37 and the corresponding electrical device 31. On this basis, the socket 371 of the connector 37 can be exposed outside the power distribution device 30, so as to realize the electrical connection with components such as the battery cell 10 through the socket 371. In this way, on the basis of integrating and protecting the connector 37, each electrical device 31 and other components in the power distribution device 30, it is convenient to realize the external connection of components such as the battery cell 10 through the connector 37, so that each electrical device 31 and the connector 37 can be conveniently assembled to realize the functions of high-voltage sampling, low-voltage control and the like for the external components such as the battery cell 10.

[0235] See also Figure 6 , Fig.14 In some embodiments of the present application, the conductive connection portion 3722 includes at least one of a conductive sheet, an FPC (Flexible Printed Circuit board), and a PCB (Printed Circuit Board).

[0236] It should be noted that the conductive connection portion 3722 refers to the portion of the second connection member 372 that is connected between the connector 37 and its second connection portion 3721. The conductive connection portion 3722 may be, but is not limited to, a conductive sheet, an FPC, a PCB, and the like.

[0237] By adopting the above scheme, the second connector 372 can replace the wiring harness through the conductive connecting part 3722 to achieve the connection between the connector 37 and its second connecting part 3721, thereby reducing the setting of the wiring harness, reducing the problems of wiring harness interference and wiring harness wear, ensuring and improving the structural reliability of the connector 37 and the second connector 372, and ensuring and improving the reliability and performance of the distribution device 30.

[0238] See also Figure 6 , Fig.14 In some embodiments of the present application, the power distribution device 30 includes a cover 38 connected to the housing 33. The connector 37 is embedded in the cover 38, and the socket 371 of the connector 37 is exposed outside the cover 38. The conductive connection portion 3722 is embedded in the cover 38.

[0239] It should be noted that the cover 38 is a component covering the housing 33 and has a certain structural strength and rigidity. The cover 38 is connected to one side of the housing 33, and can be optionally connected to the side of the housing 33 away from the base 34. The cover 38 stabilizes its installation position and installation state relative to the housing 33. The cover 38 and the housing 33 can be connected in a detachable connection mode or a fixed connection mode.

[0240] The cover 38 and the housing 33 can be enclosed together to form an inner space, which can be used to install at least one electrical device 31. Figure 6 As shown, in some embodiments, the pre-charging relay 3123 and the pre-charging resistor 315 can be installed in the space enclosed by the cover 38 and the shell 33.

[0241] It should also be noted that the cover 38 can be used to install and fix the connector 37 and the second connector 372. At least a portion of the connector 37 is embedded in the cover 38, so that the installation position and installation state of the connector 37 relative to the cover 38 are stable and firm. The connector port 371 of the connector 37 is exposed outside the cover 38, so that the battery unit 10 (such as Figure 3 The connecting terminals of the components such as the second connector 372 and the second connector 374 are plugged into the socket 371 to realize electrical connection with the connector 37. At least a part of the conductive connecting portion 3722 of the second connector 372 is embedded in the cover 38, so that the installation position and installation state of the second connector 372 relative to the cover 38 are stable and firm.

[0242] By adopting the above scheme, the cover body 38 can form a better protection effect for the electrical component 31 installed between it and the shell 33, the part in which the connector 37 is embedded therein, and the part in which the conductive connecting part 3722 is embedded therein, thereby reducing the risk of damage to the electrical component 31, the connector 37, the conductive connecting part 3722, etc., thereby extending the service life of the electrical component 31, the connector 37, the conductive connecting part 3722, etc., improving the reliability and stability of the electrical connection achieved by the connector 37 and the second connecting member 372, and improving the reliability and safety of the use of the distribution device 30. Furthermore, since the connector 37 and each second connecting member 372 are fixedly mounted on the cover body 38, when the cover body 38 is assembled, the second connecting portion 3721 of the second connecting member 372 and the first connecting portion 3171 of the corresponding electrical component 31 can be precisely aligned, and the electrical connection between the second connecting portion 3721 and the corresponding first connecting portion 3171 can be completed at the same time, thereby effectively reducing the number of assembly steps, effectively ensuring and improving the connection reliability between the connector 37 and the electrical component 31, and effectively improving the assembly efficiency and structural reliability of the distribution device 30.

[0243] See also Figure 6 , Fig.14In some embodiments of the present application, the cover 38, the connector 37 and the conductive connecting portion 3722 are an integrated structure.

[0244] It should be noted that, based on the settings of "the connector 37 is embedded in the cover body 38" and "the conductive connection part 3722 is embedded in the cover body 38", the cover body 38, the connector 37 and the conductive connection part 3722 can form an integrated structure through but not limited to one-piece molding processes such as one-piece injection molding and 3D printing.

[0245] By adopting the above scheme, the cover body 38 and the connector 37 and the conductive connecting part 3722 embedded in the cover body 38 can form an integrated structure through an integrated molding process such as one-piece injection molding and 3D printing. Based on this, the connection reliability, connection tightness, connection stability and connection strength between the cover body 38 and the connector 37 and the conductive connecting part 3722 can be effectively enhanced, the comprehensive structural strength of the cover body 38 and the connector 37 and the conductive connecting part 3722 can be effectively enhanced, the protective effect of the cover body 38 on the connector 37 and the conductive connecting part 3722 can be effectively enhanced, the risk of wear and damage of the connector 37 can be reduced, and the risk of interference, wear and the like of the conductive connecting part 3722 can be reduced.

[0246] Furthermore, based on the arrangement of this embodiment, the assembly process between the cover body 38 and the connector 37, and between the cover body 38 and the conductive connecting part 3722 can be simplified, and it is also convenient to complete the precise alignment between the second connecting part 3721 of the second connecting member 372 and the first connecting part 3171 of the corresponding electrical device 31 when assembling the cover body 38, and to complete the electrical connection between the second connecting part 3721 and the corresponding first connecting part 3171. That is, the connection process between the second connecting member 372 and the electrical device 31 can be simplified, thereby effectively reducing the number of assembly steps, effectively ensuring and improving the connection reliability between the connector 37 and the electrical device 31, and effectively improving the assembly efficiency and structural reliability of the distribution device 30.

[0247] See also Figure 4-Figure 9 , Fig.14 Based on the above embodiments, the present application provides a specific example of a power distribution device 30.

[0248] The power distribution device 30 includes an insulating heat-conducting member 32 and a base 34. The base 34 is disposed on a heat exchange member 40 (such as Figure 3 The side of the base 34 facing the heat exchanger 40 is provided with a second limiting structure 342. The insulating heat conductive member 32 is provided with and embedded in the second limiting structure 342 and is integrally formed with the base 34. The side of the insulating heat conductive member 32 facing the heat exchanger 40 protrudes from the notch of the second limiting structure 342 and is thermally connected to the heat exchanger 40.

[0249] The power distribution device 30 includes a shell 33 and an electrical component 31. The shell 33 is installed on the side of the base 34 away from the heat exchanger 40. The electrical component 31 is installed on the shell 33. The electrical component 31 is provided with a conductive structure 311. The conductive structure 311 includes a first conductive part 3112, a second conductive part 3113 and a third conductive part 3114. The first conductive part 3112 is connected to the corresponding electrical component 31 and extends toward the side close to the base 34. The third conductive part 3114 is connected to the corresponding electrical component and extends toward the side close to the base 34. The second conductive part 3113 is bent and connected to one end of the first conductive part 3112 close to the base 34, and one end of the third conductive part 3114 close to the base 34. The second conductive part 3113 is laid on the side of the shell 33 facing the base 34. A first limiting structure 341 is provided on one side of the base 34 facing the housing 33. The first limiting structure 341 is a hole-shaped structure, and the first limiting structure 341 is connected to the bottom of the groove of the second limiting structure 342. The second conductive parts 3113 of the electrical device 31 are respectively limited in the corresponding first limiting structures 341, and a heat-conducting surface 3111 is provided on the side of the second conductive part 3113 close to the insulating heat-conducting member 32. The heat-conducting surface 3111 is insulated and heat-conductingly connected to the surface of the insulating heat-conducting member 32 corresponding to the first limiting structure 341.

[0250] Based on this, during the operation of the electrical device 31, the insulating heat conductive member 32 can conduct the heat generated by the electrical device 31, especially the conductive structure 311, to the heat exchange member 40, so as to quickly conduct the heat of the electrical device 31 to the outside of the power distribution device 30, thereby improving the heat dissipation performance and heat dissipation efficiency of the power distribution device 30 to the electrical device 31, reducing the risk of thermal failure of the electrical device 31, and ensuring and extending the service life of the power distribution device 30. Among them, the insulating heat conductive member 32 adopts a ceramic member with excellent thermal conductivity and voltage tolerance, so that the insulating heat conductive member 32 can reliably perform the heat conduction effect, and at the same time can reduce the risk of the insulating heat conductive member 32 being broken down by high voltage during the operation of the electrical device 31, thereby ensuring and extending the service life of the insulating heat conductive member 32, and ensuring and improving the service life and use safety of the power distribution device 30.

[0251] Two accommodating cavities 331 are provided on the circumferential side of the housing 33 (i.e., any side of the housing 33 adjacent to the side facing the base 34). At least two electrical components 31 are provided, and the at least two electrical components 31 include a main positive relay 3121 and a main negative relay 3122. The main positive relay 3121 is fixedly installed in one of the accommodating cavities 331. The main positive relay 3121 is a shellless relay 312. The outer wall of the switch unit 3124 of the main positive relay 3121 is exposed in the accommodating cavity 331. The wall of the accommodating cavity 331 is connected to the main positive relay 3121, so that the main positive relay 3121 is fixed to the accommodating cavity 331. The main negative relay 3122 is fixedly installed in another accommodating cavity 331. The main negative relay 3122 is a shellless relay 312. The outer walls of the switch unit 3124 of the main negative relay 3122 are exposed in the accommodating cavity 331. The wall of the accommodating cavity 331 is connected to the main negative relay 3122, so that the main negative relay 3122 is fixed to the accommodating cavity 331. Based on this, the main positive relay 3121 and the main negative relay 3122 can be accommodated, limited, fixed, and protected by the shell 33, and the shell structure of the main positive relay 3121 and the main negative relay 3122 can be omitted, so that the layout of the distribution device 30 can be compacted, the design margin, space waste and occupied space of the distribution device 30 can be reduced, the weight of the distribution device 30 can be reduced, and it can be conducive to forming an integrated, miniaturized, lightweight, and simplified distribution device 30, and the production cost of the distribution device 30 can be reduced. The conductive structure 311 of the relay 312 is arranged outside the accommodating cavity 331 without occupying additional space inside the accommodating cavity 331. In particular, the second conductive portion 3113 of the conductive structure 311 of the relay 312 is arranged outside the accommodating cavity 331 near the insulating heat-conducting member 32, so that the conductive structure 311 of the relay 312 can be directly insulated and heat-conductingly connected to the insulating heat-conducting member 32 via the second conductive portion 3113. In order to facilitate the connection of the wall of the accommodating cavity 331 to the relay 312, the power distribution device 30 is provided with a cover 39, the cover 39 is sleeved and matched with the relay 312, and buckles 391 are provided on opposite sides of the cover 39, and the buckles 391 are buckled and connected with the wall of the accommodating cavity 331. In particular, the cover 39 is provided with a through hole 392 corresponding to the contact 3125 of the relay 312, and the contact 3125 is exposed in the corresponding through hole 392, so that the contact 3125 is connected to the high-voltage circuit.

[0252] The two accommodating chambers 331 are arranged adjacent to each other, that is, they are arranged close to each other. The housing 33 is provided with an insulating structure 332, and the insulating structure 332 is arranged between the two accommodating chambers 331. The insulating structure 332 can insulate and separate the two accommodating chambers 331, especially the main positive relay 3121 and the main negative relay 3122, and especially the contact 3125 of the main positive relay 3121 and the contact 3125 of the main negative relay 3122. Based on this, the insulation between the contact 3125 of the main positive relay 3121 and the contact 3125 of the main negative relay 3122 can be improved, the risk of short circuit can be reduced, and the reliability and safety of the use of the power distribution device 30 can be improved.

[0253] Each electrical device 31 further includes a pre-charge relay 3123, a shunt 3131, a Hall current sensor 3132, a main fuse 3141 and a pre-charge resistor 315. The pre-charge relay 3123 is arranged on the side of the main positive relay 3121 away from the main negative relay 3122, and is arranged close to the main positive relay 3121. The pre-charge resistor 315 is arranged on the side of the pre-charge relay 3123 away from the main positive relay 3121, and is close to the pre-charge relay 3123. The main fuse 3141 is arranged on the side of the main positive relay 3121 away from the main negative relay 3122, and is arranged beside the pre-charge relay 3123 and the pre-charge resistor 315. The main fuse 3141 is arranged close to the main positive relay 3121, the pre-charge relay 3123 and the pre-charge resistor 315. The shunt 3131 and the Hall current sensor 3132 are both current sensors 313. The Hall current sensor 3132 is arranged on the side of the main fuse 3141 away from the main positive relay 3121. The shunt 3131 is arranged on the side of the main negative relay 3122 away from the main positive relay 3121. The main positive relay 3121, the main negative relay 3122, the pre-charge relay 3123, the shunt 3131, the Hall current sensor 3132, the main fuse 3141 and the pre-charge resistor 315 are constructed with corresponding electrical connection relationships according to the circuit schematic diagram of the power distribution device 30. Among them, the circuit schematic diagram of the power distribution device 30 is a technology well known to those skilled in the art and will not be described in detail here. Based on this, the main positive relay 3121, the main negative relay 3122, the pre-charge relay 3123, the shunt 3131, the Hall current sensor 3132, the main fuse 3141 and the pre-charge resistor 315 can achieve a compact and optimized layout, thereby reducing the design margin, space waste and occupied space of the distribution device 30, and can reduce the size of the distribution device 30 in the direction perpendicular to the base 34. The overall external dimensions of the distribution device 30 can be reduced, which can facilitate the formation of an integrated and miniaturized distribution device 30.

[0254] The power distribution device 30 further includes a cover 38, which is mounted on a side of the housing 33 away from the base 34. The cover 38, the housing 33 and the base 34 can cooperate to define the internal space of the housing 33. Based on the compact layout of the above-mentioned electrical components 31, the housing 33 and the base 34 enclose an internal space to accommodate the installation of the main fuse 3141; the housing 33 and the cover 38 enclose another internal space to accommodate the installation of the pre-charge relay 3123 and the pre-charge resistor 315; and the main positive relay 3121 and the main negative relay 3122 are installed one-to-one in the two accommodating chambers 331 of the housing 33.

[0255] Each electrical component 31 is provided with a first connector 317, and the first connector 317 has a first connecting portion 3171 for detachably electrically connecting to the second connector 372 of the connector 37. For any electrical component 31, the gap between it and the electrical component 31 disposed adjacent thereto can be used as the first gap 316, and the first connecting portion 3171 of the first connector 317 disposed therein is located outside each of its first gaps 316. Taking the pre-filling relay 3123 as an example, the main positive relay 3121, the pre-filling resistor 315 and the main fuse 3141 are all disposed adjacent to the pre-filling relay 3123, and the gap between the main positive relay 3121 and the pre-filling relay 3123, the gap between the pre-filling resistor 315 and the pre-filling relay 3123, and the gap between the main fuse 3141 and the pre-filling relay 3123 can all be used as the first gap 316, but the sizes of these first gaps 316 can be set to be the same or different. The first connection part 3171 of the first connection member 317 provided for the pre-filling relay 3123 can be provided outside each first gap 316 of the pre-filling relay 3123, that is, the first connection part 3171 provided for the pre-filling relay 3123 can be provided outside the gap between the main positive relay 3121 and the pre-filling relay 3123, outside the gap between the pre-filling resistor 315 and the pre-filling relay 3123, and outside the gap between the main fuse 3141 and the pre-filling relay 3123. Therefore, in this embodiment, the first connection part 3171 of the pre-filling relay 3123 is provided on the side of the pre-filling relay 3123 facing the cover body 38. By analogy, the first connection parts 3171 of the main positive relay 3121, the main negative relay 3122, the shunt 3131, the Hall current sensor 3132, the main fuse 3141 and the pre-filling resistor 315 can be provided to avoid their respective first gaps 316 as much as possible. Of course, according to the layout design requirements, some electrical devices 31 can set their first connection parts 3171 in their first gaps 316. Based on this, by setting the first connection parts 3171 outside the first gaps 316 of the corresponding electrical devices 31, it is convenient to perform the connection operation of the first connection parts 3171 in the space outside the first gaps 316 of the corresponding electrical devices 31, thereby ensuring and improving the convenience of connecting and disconnecting the first connection parts 3171. In addition, it is also possible to make it possible for each first gap 316 of the electrical device 31 to provide neither a space for accommodating the first connection parts 3171 nor a space for connecting the first connection parts 3171, thereby facilitating the compression of the gap between the electrical device 31 and the electrical device 31 disposed adjacent thereto as required, which is conducive to compacting the overall layout of each electrical device 31, thereby facilitating the formation of an integrated, compact, and miniaturized power distribution device 30, and improving the space utilization and energy density of the power distribution device 30.

[0256] The power distribution device 30 also includes two connectors 37, one of which is used to connect to the battery cell 10 to achieve high-voltage sampling, and the other connector 37 is used to connect to the battery cell 10 for low-voltage control. Both connectors 37 are embedded in the cover 38, and the connector ports 371 of the two connectors 37 are exposed outside the cover 38. According to the number and position of the electrical components 31 to be connected to the connector 37, the connector 37 is provided with at least one second connector 372 as required. One end of the second connector 372 is electrically connected to the connector 37, and the other end of the second connector 372 extends toward the electrical component 31 to be connected. The second connector 372 is bent near one end of the corresponding electrical component 31 to form a second connecting portion 3721. The second connecting portion 3721 is bent toward the corresponding electrical component 31, and can be used for detachable plug-in cooperation with the first connecting portion 3171 of the corresponding electrical component 31. The plug-in matching direction of the second connection part 3721 and the corresponding first connection part 3171 can correspond to the assembly direction of the cover body 38 and the shell body 33. Based on this, when the assembly between the cover body 38 and the shell body 33 is completed, the second connection part 3721 and the corresponding first connection part 3171 can be precisely aligned and the plug-in matching of the second connection part 3721 and the corresponding first connection part 3171 can be completed at the same time, thereby reducing the assembly steps, ensuring and improving the connection reliability between the connector 37 and the electrical component 31, and improving the assembly efficiency and structural reliability of the distribution device 30.

[0257] The portion of the second connector 372 connected between the connector 37 and its second connector 3721 is the conductive connector 3722. The conductive connector 3722 uses a conductive sheet or FPC or PCB to replace the wiring harness, thereby reducing the wiring harness settings, reducing the problems of wiring harness interference and wiring harness wear, ensuring and improving the structural reliability of the connector 37 and the second connector 372, and ensuring and improving the reliability and safety of the power distribution device 30. The connector 37 is embedded in the cover 38, and the conductive connector 3722 is embedded in the cover 38. The cover 38, the connector 37 and the conductive connector 3722 are integrally injection molded.

[0258] See also Figure 3 , Figure 4 Some embodiments of the present application provide a battery 1, and the battery 1 includes a power distribution device 30 provided in an embodiment of the present application.

[0259] By adopting the above-mentioned solution, the battery 1 can ensure and improve the space utilization, volume utilization and energy density of the battery 1 by applying the power distribution device 30 provided in the embodiment of the present application.

[0260] See also Figure 1 Some embodiments of the present application provide an electrical device, and the electrical device includes a battery 1 provided in an embodiment of the present application.

[0261] By adopting the above solution, the electrical equipment can ensure and improve the performance of the electrical equipment by applying the battery 1 provided in the embodiment of the present application.

[0262] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions or improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A power distribution device, characterized in that: include: Electrical components; An insulating heat conductive member, one side of which is connected to at least a portion of the electrical device, and the other side of which is used to connect to a heat exchange member, and the insulating heat conductive member is used to transfer heat from the electrical device to the heat exchange member.

2. The power distribution device according to claim 1, characterized in that: The electrical device comprises a sheet-shaped conductive structure having a heat-conducting surface, and the heat-conducting surface is connected to the insulating heat-conducting component.

3. The power distribution device according to claim 2, characterized in that: The power distribution device comprises a housing for mounting the electrical components; The conductive structure comprises a first conductive part, a second conductive part and a third conductive part, the second conductive part is laid on a side of the shell facing the insulating heat-conducting member, and the side of the second conductive part facing the insulating heat-conducting member is provided with the heat-conducting surface; The first conductive part and the third conductive part are respectively connected to different sides of the second conductive part and are both bent toward a side close to the shell. The first conductive part is connected to the corresponding electrical component, and the third conductive part is used to connect to the electrical component.

4. The power distribution device according to claim 3, characterized in that: The housing is provided with at least one accommodating cavity; At least one of the electrical components is a relay, the relay is fixedly mounted in the accommodating cavity, the relay comprises a switch unit, at least part of the outer wall of the switch unit is exposed in the accommodating cavity, and the wall of the accommodating cavity is connected to the relay to fix the relay in the accommodating cavity; The conductive structure of the relay is arranged outside the accommodating cavity, and the second conductive part of the relay is arranged on the outer side of the accommodating cavity close to the insulating heat-conducting member.

5. The power distribution device according to any one of claims 1 to 4, characterized in that: The power distribution device comprises a base, which is used to be arranged on the heat exchange element; The insulating heat-conducting component is installed on the base, and the surface of the insulating heat-conducting component facing away from the electrical component is exposed on the base and connected to the heat exchange component.

6. The power distribution device according to claim 5, characterized in that: The insulating heat-conducting component is embedded in the base.

7. The power distribution device according to claim 5 or 6, characterized in that: A first limiting structure is provided on a side of the base facing the electrical component, for limiting the installation of a portion of the electrical component connected to the insulating heat-conducting component.

8. The power distribution device according to claim 7, characterized in that: The first limiting structure is a hole-shaped structure, and the first limiting structure is connected to the surface of the insulating heat-conducting component.

9. The power distribution device according to any one of claims 5 to 8, characterized in that: A second limiting structure is provided on a side of the base away from the electrical component, for limiting the installation of the insulating heat-conducting component.

10. The power distribution device according to claim 9, characterized in that: The second limiting structure is a groove-shaped structure, and the side of the insulating heat-conducting component facing away from the electrical component is flush with or protrudes from the groove of the second limiting structure.

11. The power distribution device according to any one of claims 1 to 10, characterized in that: The DC breakdown strength of the insulating heat-conducting member is 15Kv / mm to 17Kv / mm.

12. The power distribution device according to claim 11, characterized in that: The DC breakdown strength of the insulating heat-conducting component is 15.1 Kv / mm to 16.6 Kv / mm.

13. The power distribution device according to any one of claims 1 to 12, characterized in that: The insulating heat-conducting member is a phase-change material member; And / or, the insulating heat-conducting component is a ceramic component.

14. The power distribution device according to any one of claims 1 to 13, characterized in that: The insulating heat-conducting member includes at least one of aluminum oxide ceramics, aluminum nitride ceramics and silicon nitride ceramics.

15. The power distribution device according to any one of claims 1 to 14, characterized in that: There are at least two electrical components and one insulating heat-conducting member, and each of the electrical components is thermally connected to the insulating heat-conducting member.

16. The power distribution device according to any one of claims 1 to 14, characterized in that: The insulating heat-conducting parts are arranged in a one-to-one correspondence with the electrical components.

17. The power distribution device according to any one of claims 1 to 16, characterized in that: The insulating heat-conducting component is locked and connected to the electrical component by a fastener; And / or, the insulating heat-conducting component and the electrical component are bonded together by heat-conducting adhesive.

18. The power distribution device according to any one of claims 1 to 17, characterized in that: The electrical device includes at least one of a relay, a current sensor, a fuse, an insurance, and a pre-charging resistor.

19. The power distribution device according to any one of claims 1 to 18, characterized in that: The electrical device is provided with at least two; The gap between the electrical device and the electrical device adjacent to it is a first gap. The electrical device is provided with a first connector, which includes a first connecting portion for detachably connecting to an external connector. The first connecting portion is located outside each first gap corresponding to the electrical device.

20. A battery, characterized in that: The battery comprises a power distribution device as claimed in any one of claims 1-19.

21. An electrical equipment, characterized in that: The electric device comprises the battery as claimed in claim 20.

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