Power distribution apparatus, battery, and electric device

Abstract

A power distribution apparatus (30), a battery (1), and an electric device. The power distribution apparatus (30) comprises an electrical component (31) and an insulating heat conduction member (32). One side of the insulating heat conduction member (32) is connected to at least a part of the electrical component (31), the other side of the insulating heat conduction member (32) is adapted to be connected to a heat exchange member (40), and the insulating heat conduction member (32) is used for transferring heat from the electrical component (31) to the heat exchange member (40). According to the power distribution apparatus (30), heat is transferred between the electrical component (31) and the heat exchange member (40) by means of the insulating heat conduction member (32), thereby improving the heat dissipation performance and the heat dissipation efficiency of the power distribution apparatus (30) for the electrical component (31), reducing the risk of thermal failure of the electrical component (31), prolonging the service life of the electrical component (31) and the power distribution apparatus (30).

Description

Power distribution devices, batteries and electrical equipment

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office of the People's Republic of China on August 17, 2023, with application number 202311041120.1 and invention name "Distribution device, battery and electrical equipment", the entire contents of which are incorporated by reference into this application. Technical Field

[0003] The embodiments of the present application relate to the field of batteries, and in particular to a power distribution device, a battery, and electrical equipment. Background Art

[0004] In a battery, a power distribution unit (PDU) is a control unit that distributes battery energy, particularly high voltage. In some cases, the PDU houses electrical components. These components generate significant heat during operation, making them susceptible to thermal failure.

[0005] Application Contents

[0006] The embodiments of the present application provide a power distribution device, a battery, and electrical equipment, which aim to solve the problem that electrical components generate a large amount of heat during operation of the power distribution device, causing the electrical components to easily fail due to heat.

[0007] To achieve the above objectives, the technical solutions adopted in the embodiments of the present application are:

[0008] In a first aspect, a power distribution device is provided, comprising:

[0009] electrical components;

[0010] An insulating heat-conducting member has one side connected to at least a portion of the electrical component and the other side connected to a heat exchanger, and is used to transfer heat from the electrical component to the heat exchanger.

[0011] The power distribution device provided in the embodiment of the present application can be connected to the electrical device through an insulating heat conductive member in an insulated and heat conductive manner, and can be connected to the external heat exchange member through an insulating heat conductive member in an insulated and heat conductive manner. 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 exchange member can be insulated through the insulating heat conductive member, thereby basically avoiding short circuits between the electrical device, the insulating heat conductive member and the heat exchange member, and effectively reducing the risk of high-voltage short circuit ignition between the electrical device, the insulating heat conductive member and the heat exchange member. On the other hand, it is convenient to heat exchange and conduct heat between the electrical device and the heat exchange member through the insulating heat conductive member, especially to conduct the heat generated by the electrical device to the heat exchange member through the insulating heat conductive 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.

[0012] In some embodiments, the electrical device includes a sheet-shaped conductive structure having a heat-conducting surface connected to an insulating heat-conducting member.

[0013] By adopting the above solution, by connecting the heat-conducting surface of the conductive structure of the electrical device to the insulating heat-conducting member, on the one hand, the conductive structure and the insulating heat-conducting member can be insulated based on the insulation characteristics of the insulating heat-conducting member, thereby basically avoiding short circuits between the conductive structure and the insulating heat-conducting member and reducing the risk of high-voltage short circuits and ignition between the conductive structure and the insulating heat-conducting member. On the other hand, the conductive structure of the electrical device that generates a lot of heat during operation can be directly and closely connected to the insulating heat-conducting member via the heat-conducting surface. Based on this, the thermal contact area between the conductive structure and the insulating heat-conducting member can be guaranteed and increased, so that the large amount of heat generated by the conductive structure can be reliably and effectively transferred to the heat exchange member through the insulating heat-conducting member. As a result, 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.

[0014] In some embodiments, the power distribution device includes a housing for mounting an electrical component;

[0015] The conductive structure includes a first conductive part, a second conductive part and a third conductive part, the second conductive part is laid on the side of the shell facing the insulating heat-conducting member, and a heat-conducting surface is provided on the side of the second conductive part facing the insulating heat-conducting member;

[0016] The first conductive portion and the third conductive portion are respectively connected to different sides of the second conductive portion and are both bent toward the side close to the shell. The first conductive portion is connected to the corresponding electrical device, and the third conductive portion is used to connect to the electrical component.

[0017] By adopting the above solution, electrical components can be installed within the housing to protect them and ensure a stable and secure installation position and state relative to the housing. This helps ensure and extend the service life of the electrical components. Furthermore, the electrical components can be precisely and stably aligned with the insulating thermally conductive member, allowing them to establish a precise and reliable insulating and thermally conductive connection with the insulating thermally conductive member. Furthermore, the electrical components can be positioned and stabilized relative to other electrical components, allowing them to establish a stable and reliable electrical connection with other electrical components.

[0018] 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-conducted with 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 removal of a large amount of heat generated by the conductive structure through the insulating heat-conducting part, thereby ensuring and improving the heat dissipation performance and heat dissipation efficiency of the power distribution device for electrical devices.

[0019] In some embodiments, the housing is provided with at least one receiving cavity;

[0020] At least one electrical component is a relay, which is fixedly mounted in the accommodating cavity. The relay includes a switch unit, at least a portion of an outer wall of the switch unit is exposed in the accommodating cavity, and a wall of the accommodating cavity is connected to the relay to fix the relay in the accommodating cavity.

[0021] 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.

[0022] By adopting the above solution, the relay can be fixed to the housing cavity by accommodating the relay in the housing cavity and connecting the wall of the housing cavity to the relay. On this basis, the relay fixedly installed in the housing cavity can be protected by exposing at least part of the outer wall of its switch unit in the housing cavity, so that the wall of the housing cavity replaces its own housing structure. Based on this, while ensuring that the housing can play the role of accommodating, limiting, fixing, and protecting the relay, the housing structure of the relay itself can be effectively omitted, which can facilitate the compactness of the overall layout of the housing and relay, thereby facilitating the formation of an integrated, miniaturized, lightweight, and simplified power distribution device, effectively reducing the design margin, space waste, and occupied space of the power distribution device, effectively reducing the weight of the power distribution device, and facilitating the reduction of the production cost of the power distribution device.

[0023] By adopting this solution, the relay's conductive structure can be positioned outside the housing cavity, allowing it to electrically connect the relay to other electrical components without occupying additional space within the housing cavity. This reduces design margins and space waste between the housing and the relay, facilitating assembly and coordination of the housing, the relay, the relay's conductive structure, and the electrical components to which it connects, allowing the conductive structure to 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. In this way, 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, the thermal contact area between the conductive structure of the relay and the insulating thermal conductive part can be increased, and the thermal conductivity effect between the relay and the insulating thermal conductive part can be improved. 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.

[0024] In some embodiments, the power distribution device includes a base for being disposed on the heat exchange element;

[0025] 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.

[0026] By adopting the above solution, the insulating thermally conductive member can be fixedly mounted on the base, so that the mounting position and mounting state of the insulating thermally conductive member relative to the base are stable and secure, thereby facilitating accurate and stable alignment of the insulating thermally conductive member with the electrical component, and facilitating a precise and reliable insulating thermally conductive connection between the insulating thermally conductive member and the electrical component. On this basis, since the side of the insulating thermally conductive member facing the electrical component is insulated and thermally conductively connected to the electrical component, while the surface of the insulating thermally conductive member facing away from the electrical component is exposed to the base and thermally conductively connected to the heat exchanger, the insulating thermally conductive member can be directly insulated and thermally conductively connected between the electrical component and the heat exchanger, thereby reducing the blocking effect of the base on the heat conduction path of the insulating thermally conductive member, and ensuring and improving the heat conduction effect of the insulating thermally conductive member between the electrical component and the heat exchanger.

[0027] In some embodiments, the insulating thermal conductor is embedded in the base.

[0028] By adopting the above solution, the insulating thermally conductive component can be at least partially embedded in the base, building on the previous embodiment. This allows, on the one hand, at least a portion of the insulating thermally conductive component to share space with the base, thereby reducing the space occupied by both the insulating thermally conductive component and the base. On the other hand, the insulating thermally conductive component can be directly connected to the electrical component and the heat exchanger through the base, thereby reducing the base's effect on the insulating thermally conductive component's heat conduction path and ensuring and improving the insulating thermally conductive component's heat conduction efficiency between the electrical component and the heat exchanger.

[0029] 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-conducting member for installation.

[0030] By adopting the above scheme, a first limiting structure can be set on the base so that the part of the electrical component used for thermal connection with the insulating thermal conductor can be limited and installed in the first limiting structure, and the surface of the insulating thermal conductor 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 component used for thermal connection with the insulating thermal conductor, so that it is convenient to quickly and accurately achieve the alignment of each electrical component and the base, and it can promote each electrical component to be accurately aligned with the insulating thermal conductor installed in the base, which can facilitate the stabilization of the relative position and relative state between the electrical component and the insulating thermal conductor, so that it is convenient to accurately and reliably achieve the insulating thermal connection between the electrical component and the insulating thermal conductor, and ensure the thermal conductivity between the electrical component and the insulating thermal conductor.

[0031] 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-conducting component.

[0032] By adopting the above scheme, when the surface of the insulating heat-conducting member facing the electrical 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 member, so that the part of the electrical device used for thermal connection with the insulating heat-conducting member can be embedded and limited in the first limiting structure, and the surface of the insulating heat-conducting member corresponding to the first limiting structure is insulated and thermally connected. Based on this, the part of the electrical device used for thermal connection with the insulating heat-conducting member can be limited and positioned via the first limiting structure, which can facilitate the precise alignment of the electrical device and the insulating heat-conducting member, and closely and reliably achieve an insulated thermal connection with the insulating heat-conducting member. On this basis, it can also ensure that the part of the electrical device can penetrate into the base and can directly achieve an insulated thermal connection with the insulating heat-conducting member through the base, thereby reducing the blocking effect of the base on the thermal path between the electrical device and the insulating heat-conducting member, and improving the thermal conductivity between the insulating heat-conducting member and the electrical device. In addition, it can be beneficial to compress the combined occupied space of the electrical device, the base and the insulating heat-conducting member.

[0033] In some embodiments, a second limiting structure is provided on a side of the base facing away from the electrical component, for limiting the installation of the insulating heat conductive component.

[0034] By adopting the above solution, a second limiting structure can be provided on the side of the base facing away from the electrical component, so that the insulating thermal conductive member can be fixedly installed in the second limiting structure. Based on this, the insulating thermal conductive member can be limited and accommodated by the second limiting structure of the base, thereby facilitating the rapid and accurate assembly of the insulating thermal conductive member and the base, and promoting the precise alignment of the insulating thermal conductive member with the electrical component to be thermally connected, so that the insulating thermal conductive member can accurately, stably, and reliably perform its heat conduction function.

[0035] In some embodiments, the second limiting structure is a groove-shaped structure.

[0036] By adopting the above solution, a second limiting structure with a groove-shaped structure can be provided on the base so that the insulating heat conductive part can be embedded 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 the precise alignment of the insulating heat conductive part with the base and each electrical component, and facilitate the insulating heat conductive part to tightly and reliably achieve an insulating heat conductive connection with each electrical component. On this basis, it can also be ensured that at least a part of the insulating heat conductive part can be deeply embedded in the base, and can directly achieve an 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 be beneficial to compress the combined occupied space of the electrical component, the base and the insulating heat conductive part.

[0037] In some embodiments, the side of the insulating heat conductive member facing away from the electrical component protrudes from the notch of the second limiting structure.

[0038] By adopting the above solution, when the insulating heat conductive member is embedded in the second retaining structure, the side of the insulating heat conductive member facing away from the electrical component can be made to protrude from the notch of the second retaining structure, thereby allowing the side of the insulating heat conductive member facing away from the electrical component to be exposed from the second retaining structure. Based on this, it is possible to facilitate direct thermal connection between the side of the insulating heat conductive member facing away from the electrical component and the heat exchanger, thereby reducing the impact of the base on the heat conduction path between the insulating heat conductive member and the heat exchanger, and thus helping to ensure and improve the heat conduction effect between the insulating heat conductive member and the heat exchanger. Moreover, since the side of the insulating heat conductive part facing away from the electrical component protrudes from 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 component can be exposed to the second limiting structure and directly heat-conductingly connected to the heat exchanger. Therefore, based on the setting 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.

[0039] In some embodiments, the side of the insulating heat conductive member facing away from the electrical component is flush with the notch of the second limiting structure.

[0040] By adopting this solution, when the insulating heat conductive member is embedded in the second retaining structure, the side of the insulating heat conductive member facing away from the electrical component can be flush with the notch of the second retaining structure, allowing the side of the insulating heat conductive member facing away from the electrical component to be exposed from the second retaining structure. Based on this, the side of the insulating heat conductive member facing away from the electrical component can be directly thermally connected to the heat exchanger, thereby reducing the impact of the base on the heat conduction path between the insulating heat conductive member and the heat exchanger, and thus ensuring and improving the heat conduction effect between the insulating heat conductive member and the heat exchanger.

[0041] In some embodiments, the DC breakdown strength of the insulating thermal conductor is 15 Kv / mm (kilovolts per millimeter) to 17 Kv / mm.

[0042] By adopting this solution, the insulating thermally conductive component can achieve a DC breakdown strength of 15kV / mm to 17kV / mm, resulting in a superior voltage withstand capability compared to conventional insulating thermally conductive adhesives. This effectively reduces the risk of high-voltage breakdown during electrical device operation, while ensuring reliable heat exchange and conduction between the electrical component and the heat exchanger. This effectively extends the service life of the insulating thermally conductive component, reduces the risk of thermal failure in electrical components, and enhances the service life and operational safety of the power distribution device.

[0043] In some embodiments, the DC breakdown strength of the insulating thermal conductor is 15.1 KV / mm to 16.6 KV / mm.

[0044] By adopting the above solution, by ensuring that the DC breakdown strength of the insulating thermal conductive member is between 15.1 kV / mm and 16.6 kV / mm, the insulating thermal conductive member can, on the one hand, have a better withstand voltage capability than conventional insulating thermal conductive adhesives, thereby effectively reducing the risk of high voltage breakdown of the insulating thermal conductive member during electrical device operation, effectively ensuring and extending the service life of the insulating thermal conductive member, effectively reducing the risk of thermal failure of electrical devices, and effectively ensuring and improving the service life and operational safety of the power distribution device. Furthermore, the requirements for the withstand voltage capability of the insulating thermal conductive member can be measured accordingly, thereby effectively reducing the manufacturing difficulty and cost of the insulating thermal conductive member, and effectively reducing the cost of the power distribution device.

[0045] In some embodiments, the insulating thermal conductive member is a phase change material.

[0046] By adopting the above scheme, the insulating thermal conductive part can be made into a phase change material part, so that the insulating thermal conductive part 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 thermal 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 to the electrical components, effectively reducing the risk of thermal failure of the electrical components, and effectively guaranteeing and extending the service life of the electrical components and the distribution device.

[0047] In some embodiments, the insulating thermally conductive member is a ceramic member.

[0048] By adopting the above solution, by making the insulating thermally conductive member a ceramic member, on the one hand, the thermal conductivity and heat dissipation performance of the insulating thermally conductive member can be effectively improved, thereby effectively improving the heat dissipation performance and heat dissipation efficiency of the power distribution device to the electrical components, effectively reducing the risk of thermal failure of the electrical components, and effectively ensuring and extending the service life of the electrical components and the power distribution device. On the other hand, the insulating thermally conductive member can have a better withstand voltage capability than conventional insulating thermally conductive adhesives, thereby effectively reducing the risk of high voltage breakdown of the insulating thermally conductive member during the operation of the electrical components, effectively ensuring and extending the service life of the insulating thermally conductive member, and effectively ensuring and improving the service life and operational safety of the power distribution device.

[0049] In some embodiments, the insulating thermal conductor includes at least one of aluminum oxide ceramic, aluminum nitride ceramic, and silicon nitride ceramic.

[0050] By adopting the above solution, the insulating thermal conductive component can include at least one of alumina 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.

[0051] In some embodiments, there are at least two electrical components and one insulating thermally conductive member, and each electrical component is thermally connected to the insulating thermally conductive member.

[0052] By adopting the above solution, at least two electrical components can be thermally connected to the insulating thermal conductive member, so that the insulating thermal conductive member can provide heat conduction for at least two electrical components. Based on this, on the one hand, the installation area of ​​the insulating thermal conductive member can be increased, and the thermal conductivity of the insulating thermal conductive member to 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 thermal conductive members installed can be reduced, which can facilitate and simplify the assembly of the insulating thermal conductive members, thereby ensuring and improving the assembly convenience and efficiency of the power distribution device.

[0053] In some embodiments, the insulating heat-conducting components are arranged in a one-to-one correspondence with the electrical components.

[0054] By adopting the above scheme, the insulating heat-conducting parts can be arranged in a one-to-one correspondence 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 role for each electrical component. Based on this, the heat conduction effect of each insulating heat-conducting part on each electrical component can be guaranteed separately, 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.

[0055] In some embodiments, the insulating thermal conductor and the electrical component are locked and connected by fasteners.

[0056] By adopting the above solution, the electrical component and the insulating heat-conducting member can be locked together via fasteners to enhance the connection strength and tightness between the electrical component and the insulating heat-conducting member. Based on this, it is beneficial to enhance the tightness and reliability of the thermal connection between the electrical component and the insulating heat-conducting member, thereby facilitating the insulating heat-conducting member to reliably and effectively conduct the heat generated by the electrical component to the heat exchange member. As a result, the heat dissipation performance and heat dissipation efficiency of the power distribution device to the electrical component can be effectively guaranteed and improved, the risk of thermal failure of the electrical component can be effectively reduced, and the service life of the electrical component and the power distribution device can be effectively guaranteed and extended.

[0057] In some embodiments, the insulating heat conductive member is bonded to the electrical component by a thermally conductive adhesive.

[0058] By adopting the above solution, the electrical component and the insulating heat-conducting member can be bonded together using thermally conductive adhesive to enhance the connection strength and tightness between the electrical component and the insulating heat-conducting member. Based on this, it is beneficial to enhance the tightness and reliability of the thermal connection between the electrical component and the insulating heat-conducting member, thereby facilitating the insulating heat-conducting member to reliably and effectively conduct the heat generated by the electrical component to the heat exchange member. As a result, the heat dissipation performance and efficiency of the power distribution device to the electrical component can be effectively guaranteed and improved, the risk of thermal failure of the electrical component can be effectively reduced, and the service life of the electrical component and the power distribution device can be effectively guaranteed and extended.

[0059] 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.

[0060] By adopting the above solution, and by ensuring that the electrical components include at least one of a relay, a current sensor, a fuse, a fuse, and a pre-charge resistor, it is ensured that the electrical components include important components in the power distribution device for distributing high voltage to the battery, and that the electrical components are the main heat-generating components. Based on this, the insulated and thermally conductive connection between the insulating thermal conductive member and the electrical components can ensure and improve the heat dissipation performance and heat dissipation efficiency of the power distribution device for electrical components such as relays, current sensors, fuses, fuses, and pre-charge resistors, effectively reducing the risk of thermal failure of electrical components such as relays, current sensors, fuses, fuses, and pre-charge resistors, and ensuring and extending the service life of electrical components such as relays, current sensors, fuses, fuses, and pre-charge resistors.

[0061] In some embodiments, the electrical device is provided with at least two;

[0062] 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 detachable connection with an external connector. The first connecting portion is located outside each first gap of the corresponding electrical device.

[0063] By adopting the above solution, when the gaps between an electrical component and an adjacent electrical component are both defined as first gaps, by arranging the first connecting portion outside each first gap of the corresponding electrical component, on the one hand, it is possible to facilitate the connection operation of the first connecting portion in the space outside each first gap of the corresponding electrical component, thereby ensuring and improving the operational convenience of connecting and disconnecting the first connecting portion. On the other hand, each first gap of the electrical component does not need to provide either a space for accommodating the first connecting portion or a space for connecting and operating the first connecting portion, thereby facilitating the desired compression of the gaps between the electrical component and the adjacent electrical component, which can facilitate the compactness of the overall layout of the electrical components, thereby facilitating the formation of an integrated, compact, and miniaturized power distribution device.

[0064] In a second aspect, a battery is provided, which includes the power distribution device provided in an embodiment of the present application.

[0065] In a third aspect, an electrical device is provided, which includes the battery provided in an embodiment of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0066] In order to clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. 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 any creative labor.

[0067] FIG1 is a schematic structural diagram of a vehicle provided in some embodiments of the present application;

[0068] FIG2 is an exploded schematic diagram of a battery provided in some embodiments of the present application;

[0069] FIG3 is a schematic diagram of a partial structure of a battery provided in some embodiments of the present application;

[0070] FIG4 is a schematic structural diagram of a power distribution device provided in some embodiments of the present application;

[0071] FIG5 is an exploded schematic diagram of the power distribution device provided in FIG4 ;

[0072] FIG6 is a second exploded schematic diagram of the power distribution device provided in FIG4 ;

[0073] FIG7 is a front view of the power distribution device provided in FIG4 ;

[0074] FIG8 is a cross-sectional view taken along AA provided in FIG7 ;

[0075] FIG9 is an exploded schematic diagram of a housing, a relay, and a cover assembly provided in some embodiments of the present application;

[0076] FIG10 is 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;

[0077] FIG11 is an exploded schematic diagram of various electrical components, bases, and insulating heat-conducting members provided in other embodiments of the present application, wherein the insulating heat-conducting members are provided in a one-to-one correspondence with the electrical components;

[0078] FIG12 is 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 component are locked and connected by fasteners;

[0079] FIG13 is 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 component are bonded together by a heat-conducting adhesive;

[0080] FIG14 is an exploded schematic diagram of various electrical components, covers, and connectors provided in some embodiments of the present application.

[0081] In the figures, reference numerals are as follows: 1-battery, 2-controller, 3-motor; 10-battery unit; 20-housing, 21-first portion, 22-second portion; 30-power distribution device; 40-heat exchange element, 41-thermal management component; 31-electrical component, 311-conductive structure, 3111-heat-conducting surface, 3112-first conductive portion, 3113-second conductive portion, 3114-third conductive portion; 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-Shunter, 3132-Hall current sensor; 314-Fuse, 3141-Main fuse, 315-Pre-charge resistor; 316-First gap, 317-First connection Parts, 3171-first connecting part; 32-insulating heat-conducting part; 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 part, 3721-second connecting part, 3722-conductive connecting part; 38-cover; 39-covering part, 391-snap, 392-through hole. DETAILED DESCRIPTION

[0082] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application clear and understandable, the present application is described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0083] In the description of this 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 this 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 cannot be understood as a limitation on this application.

[0084] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Thus, features defined as "first" or "second" may explicitly or implicitly include one or at least two of such features. In the description of this application, "at least two" means two or more, unless otherwise specifically defined.

[0085] In this application, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components or interactions between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on specific circumstances.

[0086] In a battery, a power distribution unit (PDU) is a control unit that distributes battery energy, particularly high voltage. In some cases, the PDU houses electrical components. These components generate significant heat during operation, making them susceptible to thermal failure.

[0087] Therefore, some embodiments of the present application provide a power distribution device, which can be connected to the electrical device through an insulating heat conductive member in an insulated and heat conductive manner, and can be connected to an external heat exchanger 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, thereby basically avoiding short circuits between the electrical device, the insulating heat conductive member and the heat exchanger, and effectively reducing the risk of high-voltage short circuit ignition between the electrical device, the insulating heat conductive member and the heat exchanger. On the other hand, it is convenient to heat exchange and conduct heat between the electrical device and the heat exchanger through the insulating heat conductive member, especially to conduct heat generated by the electrical device to the heat exchanger through the insulating heat conductive member, so as to facilitate the diffusion and conduction of 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.

[0088] 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 distribute high voltage to the batteries.

[0089] The battery disclosed in the embodiments of the present application can be a modular structure including at least one battery cell to provide higher voltage and capacity, such as a battery module or battery pack. The battery cell can 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, among others. The battery cell can be cylindrical, flat, rectangular, or in other shapes, among others. The battery cell can be packaged in various ways, such as cylindrical, prismatic, or soft-pack battery cells.

[0090] The battery disclosed in the embodiments 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 power tools, grinding power tools, assembly power tools, and railway power tools, such as electric drills, electric grinders, electric wrenches, electric screwdrivers, electric hammers, impact drills, concrete vibrators, and electric planers, etc.

[0091] In order to illustrate the technical solution provided by this application, the following is a detailed description with reference to specific drawings and embodiments, taking "electrical equipment being a vehicle" as an example.

[0092] Please refer to Figure 1, which is a schematic structural diagram of a vehicle provided in some embodiments of the present application. The vehicle can be a fuel vehicle, a gas vehicle or a new energy vehicle. The new energy vehicle can 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 can 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. The controller 2 is used to control the battery 1 to power the motor 3, for example, for starting, navigating and operating power requirements during driving of the vehicle.

[0093] In some embodiments of the present application, the battery 1 can serve not only as the operating power source of the vehicle, but also as the driving power source of the vehicle, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle.

[0094] Please refer to Figures 2 and 3. Figure 2 is an exploded schematic diagram of a battery 1 provided in some embodiments of the present application, and Figure 3 is a partial structural schematic diagram of a battery 1 provided in some embodiments of the present application. The battery 1 includes a battery cell 10 and a housing 20, with the battery cell 10 housed within the housing 20. The housing 20 provides a storage space for the battery cell 10, and the structure of the housing 20 can be diverse and flexible. In some embodiments, the housing 20 can include a first portion 21 and a second portion 22, which overlap with each other and together define a storage space for the battery cell 10. The second portion 22 can be a hollow structure with one end open, and the first portion 21 can be a plate-like structure, overlapping the open side of the second portion 22, so that the first portion 21 and the second portion 22 together define a storage space. Alternatively, the first portion 21 and the second portion 22 can each be a hollow structure with one end open, with the open side of the first portion 21 overlapping the open side of the second portion 22. Of course, the box body 20 formed by the first part 21 and the second part 22 can be in various shapes, such as a cylinder, a cuboid, etc.

[0095] 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 the at least two battery cells 10 are connected in both series and in parallel.

[0096] 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 a hybrid manner, and the entire battery cell may be housed within the housing 20. 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, among others. The battery cell may be cylindrical, flat, rectangular, or in other shapes. The battery cell may be packaged in various ways, such as cylindrical, prismatic, or soft-pack battery cells.

[0097] Alternatively, the battery unit 10 may be a battery module or battery assembly. At least two battery cells may be connected in series, parallel, or in series to form a modular structure, i.e., a battery module or battery assembly. At least two battery modules or battery assembly may then be connected in series, parallel, or in series to form a whole assembly, which is housed within the housing 20.

[0098] In some embodiments, the battery 1 may further include a power distribution device 30, which is housed in the housing 20. The power distribution device 30 is connected to the battery cells 10 and the like, and may serve as a control unit for distributing energy from the battery 1, distributing high voltage to the battery 1.

[0099] In some embodiments, the battery 1 may further include a thermal management component 41, housed within the housing 20 and configured to exchange heat with components such as the battery cell 10 and the power distribution device 30 to regulate the temperature of the battery 1. The thermal management component 41 may be a liquid cooling plate. In some embodiments, a single thermal management component 41 may be provided, positioned on the same side of the battery cell 10 and the power distribution device 30 to facilitate heat exchange with the battery cell 10 and the power distribution device 30. In some embodiments, at least two thermal management components 41 may be provided, allowing for flexible design of the location and configuration of the thermal management components 41, allowing at least two thermal management components 41 to separately exchange heat with the battery cell 10 and the power distribution device 30. The thermal management component 41 may also be an air cooling system, generating airflow that passes through the battery cell 10 and the power distribution device 30 to facilitate heat exchange with the battery cell 10 and the power distribution device 30. The thermal management component 41 may also have other structural forms.

[0100] Of course, the battery 1 may further include other structures. For example, the battery 1 may further include a busbar component (not shown in the figure) for achieving electrical connection between at least two battery cells 10 .

[0101] 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.

[0102] Referring to Figures 3, 4, 5, and 6, some embodiments of the present application provide a power distribution device 30, which includes an electrical component 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 component 31, and the other side of the insulating heat-conducting member 32 is used to connect to a heat exchange member 40. The insulating heat-conducting member 32 is used to transfer heat from the electrical component 31 to the heat exchange member 40.

[0103] It should be noted that electrical device 31 may refer to any electrical component in power distribution device 30. Electrical device 31 may include relays 312, current sensors 313, fuses, fuses 314, pre-charge resistors 315, etc. Relays 312 may include a main positive relay 3121, a main negative relay 3122, a pre-charge relay 3123, etc. Current sensors 313 may include a shunt 3131, a Hall effect current sensor 3132, etc. In some embodiments, fuses 314 may function as fuses.

[0104] It should also be noted that the heat exchanger 40 may refer to an external component used to exchange heat with components such as the electrical device 31. The heat exchanger 40 has excellent thermal conductivity, enabling rapid and reliable heat exchange with components such as the electrical device 31 and the insulating heat conductive member 32, while rapidly dissipating heat. For example, the heat exchanger 40 may be the thermal management component 41, the battery 1 housing 20, the vehicle body, or the like.

[0105] 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.

[0106] The insulating heat-conducting member 32 comprises a heat-conducting material and has thermal conductivity, enabling it to perform a heat-conducting function, i.e., to perform heat exchange and heat conduction functions. One side of the insulating heat-conducting member 32 is thermally connected to at least a portion of the electrical component 31, while the other side of the insulating heat-conducting member 32 is thermally connected to the heat exchange member 40. This facilitates quick and reliable heat exchange between the electrical component 31 and the heat exchange member 40 via the insulating heat-conducting member 32, and in particular facilitates the insulating heat-conducting member 32 to quickly conduct heat generated by the electrical component 31 to the heat exchange member 40. This effectively ensures and improves the heat dissipation performance and efficiency of the power distribution device 30 for the electrical component 31, reduces the risk of thermal failure of the electrical component 31, and ensures and extends the service life of the electrical component 31 and the power distribution device 30.

[0107] The insulating heat-conducting member 32 also includes an insulating material with insulating properties, thereby providing insulation. Due to the insulating properties of the insulating heat-conducting member 32, the electrical component 31 and the heat exchanger 40 are insulated by the insulating heat-conducting member 32, thereby preventing short circuits between the electrical component 31, the insulating heat-conducting member 32, and the heat exchanger 40, thereby reducing the risk of high-voltage short circuits and sparks between the electrical component 31, the insulating heat-conducting member 32, and the heat exchanger 40.

[0108] The insulating heat-conducting member 32 may be a single-layer structure or a multi-layer structure.

[0109] The shape of the insulating heat-conducting member 32 can be variously designed, such as a cuboid, a cylinder, etc.

[0110] Among them, on the basis of ensuring the thermal conductivity and insulation between the insulating thermal conductive part 32 and the electrical component 31, the connection method between the insulating thermal conductive part 32 and the electrical component 31 can be flexibly designed, for example, abutment, bonding, bolt locking connection, etc. can be used.

[0111] In summary, the power distribution device 30 provided in the embodiment of the present application can be insulated and thermally connected to the electrical component 31 via the insulating thermal conductive member 32, and can also be insulated and thermally connected to the external heat exchanger 40 via the insulating thermal conductive member 32. Based on this, on the one hand, the insulation performance of the insulating thermal conductive member 32 can ensure that the electrical component 31 and the heat exchanger 40 can be insulated by the insulating thermal conductive member 32, thereby basically preventing short circuits between the electrical component 31, the insulating thermal conductive member 32, and the heat exchanger 40, and effectively reducing the risk of high-voltage short circuits and sparks between the electrical component 31, the insulating thermal conductive member 32, and the heat exchanger 40. On the other hand, it is convenient to exchange heat and conduct heat between the electrical component 31 and the heat exchange component 40 through the insulating heat conductive part 32, especially to conduct the heat generated by the electrical component 31 to the heat exchange component 40 through the insulating heat conductive part 32, so as to diffuse and conduct the heat generated by the electrical component 31 to the outside of the distribution device 30. In this way, the heat dissipation performance and heat dissipation efficiency of the distribution device 30 to the electrical component 31 can be effectively guaranteed and improved, the risk of thermal failure of the electrical component 31 can be effectively reduced, and the service life of the electrical component 31 and the distribution device 30 can be effectively guaranteed and extended.

[0112] Please refer to FIG. 3 , FIG. 4 , and FIG. 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 . The heat-conducting surface 3111 is connected to the insulating heat-conducting member 32 .

[0113] It should be noted that the conductive structure 311 is a component used to achieve electrical connection of the electrical device 31. The conductive structure 311 may be sheet-shaped and may include a bar, a busbar, a conductive sheet, etc. The bar may include a copper bar, an aluminum bar, etc.

[0114] The conductive structure 311 has a heat-conducting surface 3111, which can be thermally connected to the insulating heat-conducting member 32 in a form-fitting manner. This configuration allows the conductive structure 311 of the electrical device 31, which generates a relatively large amount of heat during operation, to be directly and thermally connected to the insulating heat-conducting member 32 via the heat-conducting surface 3111. This ensures and increases the thermal contact area between the conductive structure 311 and the insulating heat-conducting member 32, allowing the large amount of heat generated by the conductive structure 311 to be reliably and effectively transferred to the heat exchange member 40 via the insulating heat-conducting member 32. This effectively ensures and improves the heat dissipation performance and efficiency of the power distribution device 30 for the electrical device 31, effectively reduces the risk of thermal failure of the electrical device 31, and effectively ensures and extends the service life of the electrical device 31 and the power distribution device 30.

[0115] Furthermore, based on the insulating properties of the insulating heat-conducting member 32, the conductive structure 311 can be insulated from the insulating heat-conducting member 32. This arrangement can substantially prevent short circuits between the conductive structure 311 and the insulating heat-conducting member 32, thereby reducing the risk of high-voltage short circuits and sparks between the conductive structure 311 and the insulating heat-conducting member 32.

[0116] By adopting the above solution, 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 insulation characteristics of the insulating heat-conducting part 32, the conductive structure 311 and the insulating heat-conducting part 32 can be insulated, thereby basically avoiding short circuits 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-conducting part 32 via the heat-conducting surface 3111. Based on this, the thermal contact area between the conductive structure 311 and the insulating heat-conducting part 32 can be guaranteed and increased, so that the 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-conducting part 32. 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.

[0117] Of course, in other embodiments, the electrical device 31 can be connected to the insulating thermal conductive member 32 in an insulated and thermally conductive manner through a non-sheet conductive structure 311 ; or, the electrical device 31 can be connected to the insulating thermal conductive member 32 in an insulated and thermally conductive manner through a portion other than the conductive structure 311 .

[0118] Please refer to Figures 5, 7, and 8. In some embodiments of the present application, the power distribution device 30 includes a shell 33, which 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 shell 33 facing the insulating heat-conducting part 32, and a heat-conducting surface 3111 is provided on the side of the second conductive part 3113 facing the insulating heat-conducting part 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 shell 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.

[0119] 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 multiple electrical devices 31 are provided, the layout of the multiple electrical devices 31 in the housing 33 can be flexibly designed as needed.

[0120] The electrical component 31 is mounted within the housing 33, thereby protecting the electrical component 31 and ensuring a stable and secure installation position and state relative to the housing 33. This helps to ensure and extend the service life of the electrical component 31, facilitates precise and stable alignment of the electrical component 31 with the insulating heat-conducting member 32, and accurately and reliably establishes an insulating and heat-conducting connection with the insulating heat-conducting member 32. It also facilitates a stable position and state of the electrical component 31 with other electrical components, and a stable and reliable electrical connection with other electrical components.

[0121] The term "electrical component" refers to a component electrically connected to the electrical device 31. The electrical component may be another electrical device 31, 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.

[0122] It should also be noted that the conductive structure 311 is a component used to electrically connect the corresponding electrical device 31 to a corresponding electrical component. The corresponding electrical device 31 refers to the electrical device 31 that includes and is electrically connected to the conductive structure 311. The corresponding electrical component refers to another component, other than the corresponding electrical device 31, to which the conductive structure 311 is electrically connected. In other words, the corresponding electrical device 31 and the corresponding electrical component are the two components connected by the conductive structure 311.

[0123] The conductive structure 311 is a sheet-like structure, and includes a first conductive portion 3112, a second conductive portion 3113, and a third conductive portion 3114 connected in sequence. The first conductive portion 3112 is connected to the corresponding electrical component 31 and extends toward the side close to the insulating thermal conductive member 32. The third conductive portion 3114 is connected to the corresponding electrical component and extends toward the side close to the insulating thermal conductive member 32. The second conductive portion 3113 is bent and connected to one end of the first conductive portion 3112 close to the insulating thermal conductive member 32, and one end of the third conductive portion 3114 close to the insulating thermal conductive member 32. That is, the second conductive portion 3113 is connected from one end of the first conductive portion 3112 close to the insulating thermal conductive member 32 to one end of the third conductive portion 3114 close to the insulating thermal conductive member 32, and the second conductive portion 3113 is arranged at an angle to the first conductive portion 3112, and the second conductive portion 3113 is arranged at an angle to the third conductive portion 3114.

[0124] Depending on the layout of the corresponding electrical device 31 and the corresponding electrical component, as well as 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, and so on. In other words, the overall shape of the conductive structure 311 can be flexibly designed as needed.

[0125] 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.

[0126] It should also be noted that the second conductive portion 3113 is laid on the side of the shell 33 facing the insulating thermal conductive member 32. That is, the second conductive portion 3113 is arranged on the side of the shell 33 facing the insulating thermal conductive member 32 in a posture of "basically parallel to the side of the shell 33 facing the insulating thermal conductive member 32". In this case, on the side of the second conductive portion 3113 facing the insulating thermal conductive 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 thermal conductive member 32 in a close-fitting manner. Based on this, the conductive structure 311 can be directly insulated and thermally connected to the insulating thermal conductive 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 thermal path between the conductive structure 311 and the insulating thermal conductive member 32, and can ensure and increase the thermal contact area between the conductive structure 311 and the insulating thermal conductive member 32.

[0127] By adopting the above solution, the electrical component 31 can be installed within the housing 33, protecting the electrical component 31 and ensuring a stable and secure installation position and state relative to the housing 33. This helps ensure and extend the service life of the electrical component 31. Furthermore, the electrical component 31 can be precisely and stably aligned with the insulating thermal conductive member 32, allowing the electrical component 31 to accurately and reliably establish an insulating and thermally conductive connection with the insulating thermal conductive member 32. Furthermore, the electrical component 31 can be positioned and stabilized relative to other electrical components, allowing the electrical component 31 to establish a stable and reliable electrical connection with other electrical components.

[0128] 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 component 31.

[0129] Referring to Figures 5, 8, and 9, in some embodiments of the present application, the housing 33 is provided with at least one accommodating cavity 331. The at least one electrical component 31 is a relay 312, which is fixedly mounted in the accommodating cavity 331. The relay 312 includes a switch unit 3124, at least a portion of the outer wall of the switch unit 3124 being exposed within the accommodating cavity 331. The wall of the accommodating cavity 331 is connected to the relay 312 to secure the relay 312 to the accommodating cavity 331. The conductive structure 311 of the relay 312 is disposed outside the accommodating cavity 331, and the second conductive portion 3113 of the relay 312 is disposed on the outer side of the accommodating cavity 331 near the insulating heat-conducting member 32.

[0130] It should be noted that the housing 33 has at least one accommodating cavity 331, which can be used to securely mount the relay 312. The accommodating cavity 331 has an opening, through which the relay 312 can be placed and removed from the accommodating cavity 331. The opening of the accommodating cavity 331 can be located on any side of the housing 33. When there are at least two accommodating cavities 331, the openings of the at least two accommodating cavities 331 can be located on the same side of the housing 33 or on different sides.

[0131] 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 controlled variable to undergo a predetermined step change in an electrical output circuit when a change in an input variable (stimulation variable) reaches a specified requirement. Relays 312 may include a main positive relay 3121, a main negative relay 3122, and the like.

[0132] Relay 312 includes contacts 3125 and a switch unit 3124. Contacts 3125 are used to connect to a high-voltage circuit, and switch unit 3124 is used to control the closing or opening of contacts 3125. The closing or opening of contacts 3125 can control the on / off of the high-voltage circuit. In some embodiments, switch unit 3124 can generate electromagnetic force when energized, causing contacts 3125 to close or open. For example, switch unit 3124 can include an iron core 31241 and a coil 31242 wound around the outside of iron core 31241. When current flows through coil 31242, electromagnetic force can be generated, causing contacts 3125 to close or open. Of course, in other embodiments, switch unit 3124 can adopt other structural forms or use other principles to achieve the control of contact 3125 closing or opening.

[0133] It should also be noted that the relays 312 can be fixedly installed in the accommodating cavities 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 on a one-to-one basis.

[0134] The relay 312 is fixedly mounted in the accommodating cavity 331 so that at least a portion of the outer wall of its switch unit 3124 is exposed within the accommodating cavity 331. The outer wall of the switch unit 3124 includes the exposed outer surface portions of the various 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 wrapped around and obscured by the coil 31242, the outer wall of the switch unit 3124 primarily includes the outer circumference of the outermost coil 31242. If the outer circumference of the iron core 31241 is partially wrapped around and obscured by the coil 31242, the outer wall of the switch unit 3124 includes the outer circumference of the outermost coil 31242 and the outer circumference of the iron core 31241 not obscured 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 that is not blocked by the bracket 31243, and the outer peripheral surface of the iron core 31241 that is not blocked by the bracket 31243 and the coil 31242.

[0135] Based on this, the relay 312 fixedly installed in the accommodating cavity 331 can use the wall of the accommodating cavity 331 to replace its own housing structure for protection. As a result, the housing structure of the relay 312 itself can be omitted, that is, the relay 312 fixedly installed in the accommodating cavity 331 is a caseless relay 312.

[0136] On this basis, the wall of the accommodating cavity 331 can be connected to the relay 312 located therein to secure the relay 312 to the accommodating cavity 331 and prevent the relay 312 from escaping from the accommodating cavity 331, particularly preventing the relay 312 from escaping from the accommodating cavity 331 due to vibration during operation. The wall of the accommodating cavity 331 can be connected to the relay 312 via a detachable or fixed connection to secure the relay 312 to the accommodating cavity 331. The detachable connection method may include, but is not limited to, snap-fit ​​connection, screw locking, and other methods. The fixed connection method may include, but is not limited to, bonding and other methods.

[0137] By adopting the above solution, relay 312 can be secured to cavity 331 by accommodating it within cavity 331 of housing 33 and connecting the walls of cavity 331 to relay 312. Furthermore, relay 312, fixedly mounted within cavity 331, can be protected by exposing at least a portion of the outer wall of its switch unit 3124 within cavity 331, thereby replacing its own outer shell structure with the walls of cavity 331. This effectively eliminates the need for the outer shell structure of relay 312, while ensuring that housing 33 can still accommodate, position, secure, and protect relay 312. This facilitates a more compact overall layout of housing 33 and relay 312, resulting in an integrated, miniaturized, lightweight, and simplified power distribution device 30. This effectively reduces design margins, space waste, and occupied space within power distribution device 30, effectively reducing its weight and production costs.

[0138] 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 within 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 thermal conductor 32.

[0139] By adopting the above solution, the conductive structure 311 of the relay 312 can be positioned 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 within the accommodating cavity 331. This reduces design margins and space waste between the housing 33 and the relay 312, facilitates assembly and coordination of the housing 33, the relay 312, the conductive structure 311 of the relay 312, and the electrical components to which the conductive structure 311 of the relay 312 is connected, and facilitates the convenient and reliable electrical connection of the relay 312 to other electrical components by the conductive structure 311. 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, thereby facilitating 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, and the thermal contact area between the conductive structure 311 of the relay 312 and the insulating thermal conductive part 32 can be increased, thereby improving the thermal conductivity effect between the relay 312 and the insulating thermal conductive part 32, and facilitating the reliable and effective rapid removal of the heat generated by the relay 312 and its conductive structure 311 through the insulating thermal conductive part 32, thereby improving the heat dissipation performance and heat dissipation efficiency of the distribution device 30 to the relay 312, and reducing the risk of thermal failure of the relay 312.

[0140] Referring to Figures 5, 6, and 9, in some embodiments of the present application, at least two accommodating cavities 331 are provided, and at least two accommodating cavities 331 are disposed adjacent to each other. The housing 33 is provided with at least one insulating structure 332, disposed between two adjacent accommodating cavities 331, for isolating the contacts 3125 of the corresponding two relays 312.

[0141] It should be noted that there are at least two accommodating cavities 331, each of which is fixedly mounted with a relay 312. Theoretically, the at least two accommodating cavities 331 can be flexibly arranged. Due to the compact layout, in some cases, at least two accommodating cavities 331 are arranged adjacent to each other, and the caseless relays 312 in the two adjacent accommodating cavities 331 are close to each other, especially the contacts 3125 of the two adjacent relays 312 are close to each other.

[0142] Based on this, the housing 33 can be provided with an insulating structure 332 between the two adjacent accommodating cavities 331. At least one insulating structure 332 can be provided between each set of two adjacent accommodating cavities 331. The insulating structure 332 comprises an insulating material and has insulating properties, thereby providing an insulating effect. The insulating structure 332 can insulate and separate the accommodating cavities 331 on either side thereof, and in particular, can insulate and separate the two relays 312 installed in the two accommodating cavities 331, and in particular, can insulate and separate the contacts 3125 of 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.

[0143] The structure of the insulating structure 332 can be designed in various ways. For example, the insulating structure 332 can be a frame-shaped structure connected end to end.

[0144] The insulating structure 332 is an integrally formed component of the housing 33 , and may also be a split-formed component.

[0145] By adopting the above solution, the housing 33 can be provided with an insulating structure 332 between two adjacent accommodating cavities 331. The insulating structure 332 can insulate and separate the two adjacent accommodating cavities 331. This, in turn, can insulate and separate the two relays 312 installed in the two accommodating cavities 331, particularly the contacts 3125 of the two relays 312. This effectively improves the insulation between the contacts 3125 of the two adjacent housingless relays 312, reduces the risk of short circuits, and enhances the reliability and safety of the power distribution device 30.

[0146] 3, 5, and 6, in some embodiments of the present application, the power distribution device 30 includes a base 34 for placement 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 is connected to the heat exchanger 40.

[0147] 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 via the base 34. The base 34 is a component used to at least mount and fix the insulating heat conductive member 32.

[0148] The electrical component 31 is located on a side of the base 34 facing away from the heat exchanger 40. In some embodiments, the electrical component 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.

[0149] The insulating thermally conductive member 32 is mounted on the base 34. The mounting arrangement between the insulating thermally conductive member 32 and the base 34 can be flexibly designed. The side of the insulating thermally conductive member 32 facing the electrical component 31 is insulated and thermally connected to the electrical component 31. The surface of the insulating thermally conductive member 32 facing away from the electrical component 31 is exposed on the side of the base 34 facing the heat exchanger 40 and is thermally connected to the heat exchanger 40.

[0150] By adopting the above solution, the insulating heat conductive member 32 can be installed and fixed through the base 34, so that the installation position and installation state of the insulating heat conductive member 32 relative to the base 34 are stable and firm, thereby facilitating the precise and stable alignment of the insulating heat conductive member 32 with the electrical device 31, and facilitating the precise and reliable establishment of an insulating heat conductive connection relationship between the insulating heat conductive member 32 and the electrical device 31. On this basis, since the side of the insulating heat conductive member 32 facing the electrical device 31 is insulated and heat conductively connected to the electrical device 31, and the surface of the insulating heat conductive member 32 facing away from the electrical device 31 is exposed to the base 34 and heat conductively connected to the heat exchanger 40, it is convenient for the insulating heat conductive member 32 to be directly insulated and heat conductively connected between the electrical device 31 and the heat exchanger 40, thereby reducing the blocking effect of the base 34 on the heat conductive path of the insulating heat conductive member 32, and ensuring and improving the heat conductive effect of the insulating heat conductive member 32 between the electrical device 31 and the heat exchanger 40.

[0151] 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 .

[0152] Please refer to FIG. 3 , FIG. 5 , and FIG. 6 . In some embodiments of the present application, the insulating heat conductive member 32 is embedded in the base 34 .

[0153] It should be noted that the insulating heat-conducting member 32 is partially or entirely embedded in the base 34. The side of the insulating heat-conducting member 32 facing the electrical component 31 is insulated and thermally connected to the electrical component 31. The surface of the insulating heat-conducting member 32 facing away from the electrical component 31 is exposed on the side of the base 34 facing the heat exchanger 40 and is thermally connected to the heat exchanger 40.

[0154] By adopting the above solution, the insulating thermally conductive member 32 can be at least partially embedded in the base 34, building on the previous embodiment. This allows, on the one hand, at least a portion of the insulating thermally conductive member 32 to share space with the base 34, thereby reducing the space occupied by both the insulating thermally conductive member 32 and the base 34. On the other hand, the insulating thermally conductive member 32 can pass through the base 34, providing a direct, insulated, and thermally conductive connection between the electrical component 31 and the heat exchanger 40. This reduces the effect of the base 34 on the insulating thermally conductive member 32's heat conduction path, thereby ensuring and improving the thermal conductivity of the insulating thermally conductive member 32 between the electrical component 31 and the heat exchanger 40.

[0155] Please refer to Figures 5, 6 and 8. In some embodiments of the present application, a first limiting structure 341 is provided on the side of the base 34 facing the electrical component 31 for limiting the portion of the electrical component 31 connected to the insulating heat conductor 32.

[0156] 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 variously designed, for example, the first limiting structure 341 can be a hole structure, a groove structure, or a frame structure.

[0157] The portion of the electrical device 31 that is used for thermal connection with the insulating heat-conducting member 32 (e.g., the second conductive portion 3113 mentioned above) can be positionally mounted in the first limiting structure 341 and is insulated and thermally connected to the surface of the insulating heat-conducting member 32 corresponding to the first limiting structure 341. Where the portion of the electrical device 31 that is used for thermal connection with the insulating heat-conducting member 32 can be limited in the first limiting structure 341, the shape of the portion 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 portion of the electrical device 31 and the first limiting structure 341 can be a clearance fit, a transition fit, or an interference fit.

[0158] By adopting the above solution, a first limiting structure 341 can be set on the base 34 so that the part of the electrical component 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 component 31 used for thermal connection with the insulating heat conductive member 32, so that each electrical component 31 and the base 34 can be quickly and accurately aligned, and each electrical component 31 can be accurately aligned with the insulating heat conductive member 32 installed in the base 34, so that the relative position and relative state between the electrical component 31 and the insulating heat conductive member 32 can be stabilized, so that the electrical component 31 and the insulating heat conductive member 32 can be accurately and reliably insulated and thermally connected, and the thermal conductivity between the electrical component 31 and the insulating heat conductive member 32 can be guaranteed.

[0159] Of course, in other embodiments, the base 34 may not be provided with the first limiting structure 341, and the surface of the insulating thermal conductor 32 facing the electrical device 31 may be exposed on the corresponding side of the base 34 and thermally connected to at least part of the electrical device 31.

[0160] Please refer to FIG. 5 , FIG. 6 , and FIG. 8 . In 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 .

[0161] It should be noted that when the surface of the insulating thermally conductive member 32 facing the electrical component 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, which is a hole-shaped structure, can be connected to the surface of the insulating thermally conductive member 32. In particular, the first limiting structure 341 can extend along the depth of the hole and connect to the surface of the insulating thermally conductive member 32 near the electrical component 31. The first limiting structure 341 can be, but is not limited to, a rectangular hole, a circular hole, etc.

[0162] In this case, a portion of the electrical component 31 may 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 .

[0163] By adopting the above solution, when the surface of the insulating heat-conducting member 32 facing the electrical component 31 is embedded in the base 34, a first limiting structure 341 having a hole-like structure is provided on the base 34, and the first limiting structure 341 is connected to the surface of the insulating heat-conducting member 32, so that the part of the electrical component 31 used for thermal connection with the insulating heat-conducting member 32 can be embedded and limited in the first limiting structure 341, and insulated and thermally connected to the surface of the insulating heat-conducting member 32 corresponding to the first limiting structure 341. Based on this, the part of the electrical component 31 used for thermal connection with the insulating heat-conducting member 32 can be limited and positioned via the first limiting structure 341, which can facilitate the precise alignment of the electrical component 31 with the insulating heat-conducting member 32, and achieve a tight and reliable insulating and thermally connected connection with the insulating heat-conducting member 32. On this basis, it is also possible to ensure that a portion of the electrical component 31 can penetrate the base 34, and can directly achieve an insulated thermal connection with the insulating thermal conductive member 32 through the base 34. This can reduce the blocking effect of the base 34 on the thermal path between the electrical component 31 and the insulating thermal conductive member 32, and improve the thermal conductivity between the insulating thermal conductive member 32 and the electrical component 31. In addition, it can help to reduce the combined space occupied by the electrical component 31, the base 34, and the insulating thermal conductive member 32.

[0164] Please refer to FIG. 5 , FIG. 6 , and FIG. 8 . In some embodiments of the present application, a second limiting structure 342 is provided on a side of the base 34 facing away from the electrical device 31 , for limiting the installation of the insulating heat conductive member 32 .

[0165] It should be noted that a second limiting structure 342 is provided on 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). The structure of the second limiting structure 342 can be variously designed. For example, the second limiting structure 342 can be a groove structure, a hole structure, a frame structure, etc.

[0166] The insulating heat-conducting member 32 is fixedly mounted in the second limiting structure 342. When the insulating heat-conducting member 32 is fixedly mounted in the second limiting structure 342, the shape of the second limiting structure 342 can be the same as or different from that of the insulating heat-conducting member 32, and the fit between the insulating heat-conducting member 32 and the second limiting structure 342 can be a clearance fit, a transition fit, or an interference fit.

[0167] By adopting the above solution, a second limiting structure 342 can be provided on the side of the base 34 facing away from the electrical component 31, so that the insulating heat conductive member 32 can be fixedly installed in the second limiting structure 342. Based on this, the second limiting structure 342 of the base 34 can limit and accommodate the insulating heat conductive member 32, thereby facilitating rapid and accurate assembly between the insulating heat conductive member 32 and the base 34, and promoting precise alignment of the insulating heat conductive member 32 with the electrical component 31 to be thermally connected, thereby facilitating the insulating heat conductive member 32 to accurately, stably, and reliably perform its heat conduction function.

[0168] Please refer to FIG. 5 , FIG. 6 , and FIG. 8 . In some embodiments of the present application, the second limiting structure 342 is a groove-shaped structure.

[0169] It should be noted that a second retaining structure 342 is provided on the side of the base 34 facing away from the electrical device 31. The second retaining structure 342 is a groove-like structure. The second retaining structure 342 can be, but is not limited to, a rectangular groove, a circular groove, etc. Based on this, the insulating thermal conductive member 32 can be embedded in the second retaining structure 342.

[0170] By adopting the above scheme, the second limiting structure 342 with a groove-shaped structure can be set on the base 34, so that the insulating heat conductive part 32 can be embedded in the second limiting structure 342. Based on this, the insulating heat conductive part 32 can be limited and positioned via the second limiting structure 342, which can facilitate the precise alignment of the insulating heat conductive part 32 with the base 34 and each electrical component 31, and facilitate the insulating heat conductive part 32 to be tightly and reliably connected to each electrical component 31 to achieve an insulating heat conductive connection. On this basis, it can also ensure that at least a part of the insulating heat conductive part 32 can be deeply embedded in the base 34, and can be directly connected to the electrical component 31 through the base 34 to achieve an insulating heat conductive connection, thereby reducing the blocking effect of the base 34 on the heat conductive path between the electrical component 31 and the insulating heat conductive part 32, and improving the heat conductive effect between the insulating heat conductive part 32 and the electrical component 31. In addition, it can be beneficial to compress the combined occupied space of the electrical component 31, the base 34 and the insulating heat conductive part 32.

[0171] Please refer to FIG. 5 , FIG. 6 , and FIG. 8 . In some embodiments of the present application, the second limiting structure 342 is disposed in a one-to-one correspondence with the insulating heat-conducting member 32 .

[0172] 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 on a one-to-one basis.

[0173] By adopting the above-mentioned scheme, the insulating heat conductive part 32 can be embedded one-to-one through the second limiting structure 342, thereby ensuring and improving the limiting and positioning effect of the second limiting structure 342 on the insulating heat conductive part 32, ensuring and improving the installation convenience, installation reliability and installation accuracy of the insulating heat conductive part 32, facilitating the accurate and reliable insulation and heat-conducting connection of the insulating heat conductive part 32 with the corresponding electrical component 31, and facilitating the insulating heat conductive part 32 to reliably perform its heat-conducting function.

[0174] Of course, in other embodiments, at least two insulating heat-conducting members 32 may be embedded in one second limiting structure 342 .

[0175] Please refer to FIG. 5 , FIG. 6 , and FIG. 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 from the notch of the second limiting structure 342 .

[0176] It should be noted that the side of the insulating heat conductive member 32 facing away from the electrical component 31 protrudes from the notch of the second retaining structure 342. This means that when the insulating heat conductive member 32 is embedded in the second retaining structure 342, the side of the insulating heat conductive member 32 facing away from the electrical component 31 protrudes from the notch of the second retaining structure 342. This arrangement facilitates the side of the insulating heat conductive member 32 facing away from the electrical component 31 to be exposed from the second retaining structure 342 and to be directly thermally connected to the heat exchanger 40 (as shown in Figure 3).

[0177] 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 component 31 can be made to protrude 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 component 31 can be exposed from the second limiting structure 342. Based on this, the side of the insulating heat conductive member 32 facing away from the electrical component 31 can be directly thermally connected to the heat exchanger 40, 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, and thus ensuring and improving the heat conduction effect between the insulating heat conductive member 32 and the heat exchanger 40. Moreover, since the side of the insulating heat conductive part 32 facing away from the electrical device 31 protrudes from the notch of the second limiting structure 342, the size of the insulating heat conductive part 32 in the direction of the groove depth of the second limiting structure 342 is greater than the groove depth of the second limiting structure 342. Therefore, even if there is a processing error in the size of the insulating heat conductive part 32 in the direction of the groove depth of the second limiting structure 342 or the groove 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 can reduce the requirements for the matching accuracy of the insulating heat conductive part 32 and the second limiting structure 342 in the direction of the groove depth of the second limiting structure 342, thereby facilitating the processing and assembly of the insulating heat conductive part 32 and the base 34.

[0178] Please refer to FIG. 3 and FIG. 10 . In some embodiments of the present application, the side surface 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 .

[0179] It should be noted that the side of the insulating heat conductive member 32 facing away from the electrical component 31 is flush with the notch of the second limiting structure 342. This 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 component 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. This arrangement facilitates the side of the insulating heat conductive member 32 facing away from the electrical component 31 to be exposed through the second limiting structure 342 and to be directly thermally connected to the heat exchanger 40.

[0180] 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 component 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 component 31 can be exposed from the second limiting structure 342. Based on this, the side of the insulating heat conductive member 32 facing away from the electrical component 31 can be directly thermally connected to the heat exchanger 40, 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, and thus ensuring and improving the heat conduction effect between the insulating heat conductive member 32 and the heat exchanger 40.

[0181] Of course, in other embodiments, the side of the insulating heat conductive member 32 facing away from the electrical device 31 can be recessed into 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 pad.

[0182] Please refer to FIG. 5 , FIG. 6 , and FIG. 8 . In some embodiments of the present application, the insulating heat conductive member 32 and the base 34 are an integrated structure.

[0183] 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, an integrated molding process such as integral injection molding, 3D printing, etc.

[0184] By adopting the above-mentioned solution, the insulating heat conductive member 32 and the base 34 can be formed into an integrated structure through an integrated molding process such as integral injection molding or 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. The assembly process between the insulating heat conductive member 32 and the base 34 can be simplified, and the assembly convenience and efficiency between the insulating heat conductive member 32 and the base 34 can be improved. In addition, based on the configuration of this embodiment, the insulating heat conductive member 32 and the base 34 can be integrally connected and sealed, thereby conveniently, quickly, and reliably sealing the connection gap between the insulating heat conductive member 32 and the base 34, improving the sealing between the insulating heat conductive member 32 and the base 34, and reducing the risk of liquid penetrating from the connection gap between the insulating heat conductive member 32 and the base 34 into the electrical device 31, causing a high-voltage short circuit and ignition.

[0185] Of course, in other embodiments, the insulating heat conductive member 32 and the base 34 may be separately formed and then separately connected. Furthermore, the connection structure between the insulating heat conductive member 32 and the base 34 may be designed specifically, or components such as sealing rings and sealants may be used to ensure the sealing between the insulating heat conductive member 32 and the base 34. The separate connection method between the insulating heat conductive member 32 and the base 34 may be designed in a variety of ways, such as by snap fastening, bonding, or bolting.

[0186] Please refer to FIG. 5 , FIG. 6 , and FIG. 8 . In some embodiments of the present application, the DC breakdown strength of the insulating heat-conducting member 32 is 15 Kv / mm to 17 Kv / mm.

[0187] It should be noted that the DC breakdown strength of the insulating thermal conductor 32 represents the ability of the insulating thermal conductor 32 to withstand voltage, and represents that the insulating thermal conductor 32 is not easily broken down, damaged, or loses its insulating function when subjected to an electric field strength less than the DC breakdown strength.

[0188] 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 that the insulating thermal conductor 32 is subjected to. 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 sandwiched 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".

[0189] In this embodiment, the DC breakdown strength of the insulating thermal conductor 32 is not less than 15Kv / mm, that is, the DC breakdown strength of the insulating thermal conductor 32 is greater than or equal to 15Kv / mm. Moreover, the DC breakdown strength of the insulating thermal conductor 32 is not greater than 17Kv / mm, that is, the DC breakdown strength of the insulating thermal conductor 32 is less than or equal to 17Kv / mm. For example, the DC breakdown strength of the insulating thermal conductor 32 may be 15Kv / mm, 15.5Kv / mm, 16Kv / mm, 16.5Kv / mm, 17Kv / mm, and so on. In other words, the insulating thermal conductor 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.

[0190] By adopting the above solution, the DC breakdown strength of the insulating thermal conductive member 32 can be increased to 15kv / mm to 17kv / mm, resulting in a better voltage withstand capability than conventional insulating thermally conductive adhesives. Based on this, the insulating thermal conductive member 32 can reliably exchange and conduct heat between the electrical device 31 and the heat exchange element 40 (as shown in Figure 3), effectively reducing the risk of high-voltage breakdown of the insulating thermal conductive member 32 during operation of the electrical device 31. This effectively ensures and extends the service life of the insulating thermal conductive member 32, effectively reduces the risk of thermal failure of the electrical device 31, and effectively ensures and improves the service life and operational safety of the power distribution device 30.

[0191] Please refer to FIG. 5 , FIG. 6 , and FIG. 8 . In some embodiments of the present application, the DC breakdown strength of the insulating heat conductive member 32 is 15.1 KV / mm to 16.6 KV / mm.

[0192] It should be noted that the DC breakdown strength of the insulating thermal conductor 32 is 15.1Kv / mm~16.6Kv / mm. For example, the DC breakdown strength of the insulating thermal conductor 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.

[0193] By adopting the above solution and ensuring that the DC breakdown strength of the insulating thermal conductive member 32 is between 15.1 kV / mm and 16.6 kV / mm, the insulating thermal conductive member 32 can, on the one hand, have a better withstand voltage capability than conventional insulating thermal conductive adhesives, thereby effectively reducing the risk of high-voltage breakdown of the insulating thermal conductive member 32 during operation of the electrical device 31, effectively ensuring and extending the service life of the insulating thermal conductive member 32, effectively reducing the risk of thermal failure of the electrical device 31, and effectively ensuring and improving the service life and operational safety of the power distribution device 30. Furthermore, the requirements for the withstand voltage capability of the insulating thermal conductive member 32 can be appropriately measured, thereby effectively reducing the manufacturing difficulty and cost of the insulating thermal conductive member 32, and effectively reducing the cost of the power distribution device 30.

[0194] Please refer to FIG. 5 , FIG. 6 , and FIG. 8 . In some embodiments of the present application, the insulating heat-conducting member 32 is a phase-change material member.

[0195] 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.

[0196] 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.

[0197] Please refer to FIG. 5 , FIG. 6 , and FIG. 8 . In some embodiments of the present application, the insulating heat-conducting member 32 is a ceramic member.

[0198] It should be noted that the insulating thermally conductive member 32 is a ceramic member, that is, made of ceramic. Ceramics have excellent thermal conductivity and even exhibit phase change properties, which allow them to change state at constant temperature and absorb or release large amounts of latent heat. Therefore, by making the insulating thermally conductive member 32 a ceramic member, its thermal conductivity and heat dissipation performance can be improved.

[0199] Ceramics also have excellent withstand voltage capabilities, allowing them to withstand certain electric field intensities without being easily broken down or damaged, resulting in a loss of insulation. Therefore, by making the insulating thermal conductive member 32 ceramic, the withstand voltage capability of the insulating thermal conductive member 32 can be improved, reducing the risk of the insulating thermal conductive member 32 being broken down by high voltage during operation of the electrical device 31.

[0200] By adopting the above solution, by making the insulating thermally conductive member 32 a ceramic member, on the one hand, the thermal conductivity and heat dissipation performance of the insulating thermally 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 thermally conductive member 32 can have a better withstand voltage capability than conventional insulating thermally conductive adhesives, thereby effectively reducing the risk of high voltage breakdown of the insulating thermally conductive member 32 during operation of the electrical device 31, effectively ensuring and extending the service life of the insulating thermally conductive member 32, and effectively ensuring and improving the service life and operational safety of the power distribution device 30.

[0201] Of course, in other embodiments, the insulating heat-conducting member 32 may be made of other heat-conducting materials.

[0202] Referring to FIG. 5 , FIG. 6 , and FIG. 8 , in some embodiments of the present application, the insulating thermal conductor 32 includes at least one of alumina ceramics, aluminum nitride ceramics, and silicon nitride ceramics.

[0203] By adopting the above scheme, the insulating thermal conductive part 32 can include at least one of alumina ceramics, aluminum nitride ceramics and silicon nitride ceramics, so that the insulating thermal conductive part 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 part 32.

[0204] Please refer to FIG. 5 and FIG. 6 . In some embodiments of the present application, at least two electrical components 31 are provided, and one insulating heat-conducting member 32 is provided. Each electrical component 31 is thermally connected to the insulating heat-conducting member 32 .

[0205] It should be noted that there are at least two electrical components 31 , 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 .

[0206] There is one insulating heat-conducting member 32 . Each electrical device 31 is insulated and heat-conductingly connected to the same insulating heat-conducting member 32 , that is, the insulating heat-conducting member 32 can perform heat conduction for at least two electrical devices 31 .

[0207] By adopting the above solution, at least two electrical components 31 can be thermally connected to the insulating thermal conductive member 32, allowing the insulating thermal conductive member 32 to conduct heat to the at least two electrical components 31. This, on the one hand, increases the installation area of ​​the insulating thermal conductive member 32, ensuring and improving the thermal conductivity of the insulating thermal conductive member 32 to each electrical component 31, thereby ensuring and improving the heat dissipation performance and efficiency of the power distribution device 30 for 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 insulating thermal conductive members 32 installed can be reduced, simplifying the assembly of the insulating thermal conductive members 32, thereby ensuring and improving the assembly convenience and efficiency of the power distribution device 30.

[0208] Please refer to FIG. 4 and FIG. 11 . In some embodiments of the present application, the insulating heat-conducting member 32 and the electrical device 31 are disposed in a one-to-one correspondence.

[0209] 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 314, and a pre-charging resistor 315.

[0210] The number of insulating heat-conducting parts 32 corresponds to the number of electrical components 31 , so that each insulating heat-conducting part 32 can be insulated and heat-conductingly connected to each electrical component 31 one-to-one, that is, each insulating heat-conducting part 32 can perform a one-to-one heat conduction function for each electrical component 31 .

[0211] By adopting the above solution, the insulating heat-conducting parts 32 and the electrical components 31 can be arranged in a one-to-one correspondence, so that each insulating heat-conducting part 32 can be insulated and heat-conductingly connected to each electrical component 31, so that each insulating heat-conducting part 32 can perform a one-to-one heat conduction function for each electrical component 31. Based on this, the heat conduction effect of each insulating heat-conducting part 32 on each electrical component 31 can be guaranteed separately, and the size and shape of the corresponding insulating heat-conducting part 32 can even be designed in a targeted manner according to the heat conduction requirements of the electrical component 31. In this way, the heat dissipation performance and heat dissipation efficiency of the distribution device 30 for the electrical component 31 can be effectively guaranteed and improved, the risk of thermal failure of the electrical component 31 can be reduced, and the service life of the electrical component 31 and the distribution device 30 can be guaranteed and extended. In addition, based on the configuration of this embodiment, the total consumables of each insulating heat-conducting part 32 can be saved accordingly, thereby saving the total cost of each insulating heat-conducting part 32 and the cost of the distribution device 30.

[0212] Please refer to FIG. 4 and FIG. 12 . In some embodiments of the present application, the insulating heat conductive member 32 and the electrical device 31 are locked and connected via a fastener 35 .

[0213] It should be noted that the electrical component 31 and the insulating heat-conducting component 32 can be locked together by one or at least two fasteners 35 to enhance the connection strength and tightness between the electrical component 31 and the insulating heat-conducting component 32. The fasteners 35 can be, but are not limited to, bolts.

[0214] By adopting the above solution, the electrical component 31 and the insulating heat-conducting member 32 can be locked together via the fastener 35 to enhance the connection strength and tightness between the electrical component 31 and the insulating heat-conducting member 32. Based on this, it is beneficial to enhance the tightness and reliability of the thermal connection between the electrical component 31 and the insulating heat-conducting member 32, thereby facilitating the insulating heat-conducting member 32 to reliably and effectively conduct the heat generated by the electrical component 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 component 31 can be effectively guaranteed and improved, the risk of thermal failure of the electrical component 31 can be effectively reduced, and the service life of the electrical component 31 and the power distribution device 30 can be effectively guaranteed and extended.

[0215] Please refer to FIG. 4 and FIG. 13 . In some embodiments of the present application, the insulating heat-conducting member 32 and the electrical device 31 are bonded together by a heat-conducting adhesive 36 .

[0216] It should be noted that a thermally conductive adhesive 36 may be provided at the connection between the electrical component 31 and the insulating thermal conductive member 32 so as to bond the electrical component 31 and the insulating thermal 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 thermal conductive member 32.

[0217] By adopting the above solution, the electrical component 31 and the insulating heat-conducting member 32 can be bonded together using the thermally conductive adhesive 36 to enhance the connection strength and tightness between the electrical component 31 and the insulating heat-conducting member 32. Based on this, it is beneficial to enhance the tightness and reliability of the thermal connection between the electrical component 31 and the insulating heat-conducting member 32, thereby facilitating the insulating heat-conducting member 32 to reliably and effectively conduct the heat generated by the electrical component 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 component 31 can be effectively guaranteed and improved, the risk of thermal failure of the electrical component 31 can be effectively reduced, and the service life of the electrical component 31 and the power distribution device 30 can be effectively guaranteed and extended.

[0218] Please refer to FIG. 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 .

[0219] It should be noted that relay 312 is an electrical control device that causes a predetermined step change in the controlled quantity in the electrical output circuit when the change in the input quantity (stimulation quantity) reaches a specified requirement. Relay 312 may include a main positive relay 3121, a main negative relay 3122, and a pre-charge relay 3123.

[0220] Current sensor 313 is a detection device that senses the measured current and, according to a specific pattern, converts the sensed information into an electrical signal or other desired information output that meets certain standards, thereby satisfying requirements for information transmission, processing, storage, display, recording, and control. Current sensor 313 may include a shunt 3131, a Hall current sensor 3132, and the like.

[0221] 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.

[0222] 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 excessive current or voltage) or short-circuited. In some embodiments, insurance 314 can be used as a fuse.

[0223] The pre-charging resistor 315 is a circuit element used to limit the magnitude 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 components such as the relay 312.

[0224] By adopting the above solution, and by ensuring that the electrical device 31 includes at least one of the relay 312, current sensor 313, fuse, fuse 314, and pre-charge resistor 315, it is ensured that the electrical device 31 comprises an important component in the power distribution device 30 for distributing high voltage to the battery 1, and that the electrical device 31 is the main heat-generating component. Based on this, the insulating and thermally conductive connection between the insulating thermal 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, current sensor 313, fuse, fuse 314, and pre-charge resistor 315. This can effectively reduce the risk of thermal failure of the electrical devices 31, such as the relay 312, current sensor 313, fuse, fuse 314, and pre-charge resistor 315, and ensure and extend the service life of the electrical devices 31, such as the relay 312, current sensor 313, fuse, fuse 314, and pre-charge resistor 315.

[0225] Referring to Figures 6 and 14 , in some embodiments of the present application, at least two electrical devices 31 are provided. The gap between an electrical device 31 and an adjacent electrical device 31 is a first gap 316. The electrical device 31 is provided with a first connector 317. The first connector 317 includes a first connecting portion 3171 for detachably connecting to an external connector. The first connecting portion 3171 is located outside each first gap 316 of the corresponding electrical device 31.

[0226] It should be noted that at least two electrical devices 31 are provided, and the at least two electrical devices 31 can be flexibly arranged. For any electrical device 31, the gap between it and the adjacent electrical device 31 can serve as the first gap 316. Of course, for any electrical device 31, when it is surrounded by at least two adjacent electrical devices 31, it can have at least two first gaps 316. The sizes of the first gaps 316 of the same electrical device 31 can be the same or different, and the sizes of the first gaps 316 of different electrical devices 31 can be the same or different.

[0227] It should also be noted that the electrical device 31 is provided with at least one first connector 317, which is used to electrically connect to an external connector (e.g., the first connector 317 of another electrical device 31, or the second connector 372 described 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 to the external connector. The first connecting portion 3171 can achieve detachable mechanical and electrical connection to the external connector by, but is not limited to, plugging, snapping, elastic abutment, and the like.

[0228] 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. The first connection portion 3171 is located outside each first gap 316 of the electrical device 31. Based on this, on the one hand, by arranging the first connection portion 3171 outside each first gap 316 of the corresponding electrical device 31, the connection operation of the first connection portion 3171 can be performed 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 part 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 part 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 helping to compact the overall layout of each electrical device 31.

[0229] By adopting the above solution, when the gap between an electrical device 31 and an adjacent electrical device 31 is defined as a first gap 316, by arranging the first connecting portion 3171 outside each first gap 316 of the corresponding electrical device 31, on the one hand, the connection operation of the first connecting portion 3171 can be performed 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 connecting portion 3171. On the other hand, each first gap 316 of the electrical device 31 does not need to provide space for accommodating the first connecting portion 3171, nor does it need to provide space for connecting and disconnecting the first connecting portion 3171. This facilitates the reduction of the gap between the electrical device 31 and the adjacent electrical device 31 as needed, which is conducive to compacting the overall layout of the electrical devices 31, thereby facilitating the formation of an integrated, compact, and miniaturized power distribution device 30.

[0230] Please refer to Figures 6 and 14. In some embodiments of the present application, the distribution device 30 includes a connector 37 and a second connecting member 372. The second connecting member 372 includes a conductive connecting part 3722 and a second connecting part 3721. One end of the conductive connecting part 3722 is connected to the connector 37, and the other end of the conductive connecting part 3722 is connected to the second connecting part 3721. The second connecting part 3721 is bent toward the corresponding electrical device 31 for detachable connection with the corresponding first connecting part 3171.

[0231] It should be noted that connector 37 is a terminal for connecting to components such as battery cells 10 (shown in FIG3 ). The mounting position and state of connector 37 relative to electrical device 31 are stable and secure. Connector 37 has a socket 371 exposed outside power distribution device 30, allowing connection terminals of components such as battery cells 10 to be plugged into socket 371 for electrical connection to connector 37.

[0232] 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 for low-voltage control. Of course, in other embodiments, the power distribution device 30 may be provided with only one connector 37, which integrates both high-voltage sampling and low-voltage control functions. Of course, in other embodiments, the power distribution device 30 may be provided with three or more connectors 37, and the functions of each connector 37 may be the same or different.

[0233] It should also be noted that, depending on the number and locations 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 extends toward the electrical device 31 to be connected. The extension path of the conductive connecting portion 3722 can be straight or curved.

[0234] At one end of the conductive connection portion 3722 proximal to the corresponding electrical device 31, the second connector 372 can be bent to form a second connection portion 3721. The conductive connection portion 3722 and the corresponding second connection portion 3721 can be integrally connected or separately connected. The second connection portion 3721 is bent toward the corresponding electrical device 31 and configured for removable mechanical and electrical connection with the first connection portion 3171 of the corresponding electrical device 31. The second connection portion 3721 can achieve removable mechanical and electrical connection with the corresponding first connection portion 3171 through, but not limited to, plugging, snapping, or elastic abutment.

[0235] By adopting the above solution, when each electrical device 31 is installed within the power distribution device 30, it can be connected to the connector 37 via the conductive connection portion 3722 of the second connector 372, and the second connection portion 3721 of the second connector 372 can be removably connected to the first connection portion 3171 of the corresponding electrical device 31, thereby conveniently, quickly, and reliably achieving electrical connection between the connector 37 and the corresponding electrical device 31. Furthermore, by exposing the socket 371 of the connector 37 outside the power distribution device 30, electrical connection with components such as the battery cell 10 can be facilitated via the socket 371. Thus, while the power distribution device 30 integrates and protects the connector 37 and the electrical devices 31, it facilitates the connection of external components such as the battery cell 10 via the connector 37. This facilitates the integration of the electrical devices 31 and the connector 37, enabling functions such as high-voltage sampling and low-voltage control for external components such as the battery cell 10.

[0236] Referring to FIG. 6 and 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).

[0237] 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 can be, but is not limited to, a conductive sheet, an FPC, a PCB, and the like.

[0238] By adopting the above scheme, the second connector 372 can replace the wiring harness through the conductive connecting part 3722 to realize 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.

[0239] 6 and 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 , with the socket 371 of the connector 37 exposed outside the cover 38 . The conductive connection portion 3722 is embedded in the cover 38 .

[0240] It should be noted that the cover 38 covers the housing 33 and possesses a certain degree of structural strength and rigidity. The cover 38 is connected to one side of the housing 33, optionally to the side of the housing 33 away from the base 34. The cover 38 stabilizes its installation position and state relative to the housing 33. The connection between the cover 38 and the housing 33 can be detachable or fixed.

[0241] The cover 38 and the housing 33 may together enclose an interior space for mounting at least one electrical device 31. As shown in FIG6 , in some embodiments, a pre-charge relay 3123 and a pre-charge resistor 315 may be mounted within the space enclosed by the cover 38 and the housing 33.

[0242] It should also be noted that the cover 38 is used to mount and secure the connector 37 and the second connector 372. At least a portion of the connector 37 is embedded in the cover 38, ensuring that the connector 37 is securely and firmly mounted relative to the cover 38. The connector socket 371 of the connector 37 is exposed outside the cover 38, allowing the connection terminals of components such as the battery cell 10 (shown in FIG. 3 ) to be electrically connected to the connector 37 by plugging into the socket 371. The conductive connection portion 3722 of the second connector 372 is at least partially embedded in the cover 38, ensuring that the second connector 372 is securely and firmly mounted relative to the cover 38.

[0243] By adopting the above-mentioned 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 part 372, and improving the reliability and safety of use of the distribution device 30. Moreover, 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 at the same time, 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.

[0244] Please refer to FIG. 6 and FIG. 14 . In some embodiments of the present application, the cover 38 , the connector 37 and the conductive connection portion 3722 are an integrated structure.

[0245] 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 injection molding, 3D printing and other one-piece molding processes.

[0246] 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 one-piece molding processes 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, etc. of the conductive connecting part 3722 can be reduced.

[0247] Moreover, 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 connection part 3722 can be simplified, and it is also convenient to complete the precise alignment between the second connection part 3721 of the second connector 372 and the first connection part 3171 of the corresponding electrical device 31 when assembling the cover body 38, and complete the electrical connection between the second connection part 3721 and the corresponding first connection part 3171. That is, the connection process between the second connector 372 and the electrical device 31 can be simplified, thereby effectively reducing the 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.

[0248] Please refer to Figures 4 to 9 and Figure 14. Based on the above embodiments, the embodiment of the present application provides a specific example of a power distribution device 30.

[0249] The power distribution device 30 includes an insulating heat-conducting member 32 and a base 34. The base 34 is mounted on the heat exchanger 40 (as shown in FIG3 ). A second retaining structure 342 is provided on the side of the base 34 facing the heat exchanger 40. The insulating heat-conducting member 32 is embedded in the second retaining structure 342 and is integrally formed with the base 34. The side of the insulating heat-conducting member 32 facing the heat exchanger 40 protrudes from the notch of the second retaining structure 342 and is thermally connected to the heat exchanger 40.

[0250] The power distribution device 30 includes a housing 33 and an electrical component 31. The housing 33 is mounted on the side of the base 34 facing away from the heat exchanger 40. The electrical component 31 is mounted on the housing 33. The electrical component 31 is provided with a conductive structure 311. The conductive structure 311 includes a first conductive portion 3112, a second conductive portion 3113, and a third conductive portion 3114. The first conductive portion 3112 is connected to the corresponding electrical component 31 and extends toward the side close to the base 34. The third conductive portion 3114 is connected to the corresponding electrical component and extends toward the side close to the base 34. The second conductive portion 3113 is bent and connected to one end of the first conductive portion 3112 close to the base 34 and one end of the third conductive portion 3114 close to the base 34. The second conductive portion 3113 is laid on the side of the housing 33 facing the base 34. The base 34 has a first retaining structure 341 on the side facing the housing 33. The first retaining structure 341 is a hole-like structure that connects to the bottom of the groove of the second retaining structure 342. The second conductive portions 3113 of the electrical device 31 are respectively retained in the corresponding first retaining structures 341. The side of the second conductive portion 3113 near the insulating thermal conductive member 32 has a thermally conductive surface 3111. The thermally conductive surface 3111 is insulated and thermally connected to the surface of the insulating thermal conductive member 32 corresponding to the first retaining structure 341.

[0251] Based on this, during the operation of the electrical device 31, the insulating thermal 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 dissipate the heat of the electrical device 31 outside the power distribution device 30. This can improve the heat dissipation performance and efficiency of the power distribution device 30 for the electrical device 31, reduce the risk of thermal failure of the electrical device 31, and ensure and extend the service life of the power distribution device 30. Specifically, the insulating thermal conductive member 32 is made of a ceramic member with excellent thermal conductivity and voltage withstand capability, so that the insulating thermal conductive member 32 can reliably perform its heat conduction function and reduce the risk of high voltage breakdown of the insulating thermal conductive member 32 during the operation of the electrical device 31. This can ensure and extend the service life of the insulating thermal conductive member 32 and ensure and improve the service life and safety of the power distribution device 30.

[0252] Two accommodating cavities 331 are provided on the circumference of the housing 33 (i.e., on either side of the housing 33 adjacent to the side facing the base 34). At least two electrical components 31 are provided, including a main positive relay 3121 and a main negative relay 3122. The main positive relay 3121 is fixedly mounted in one of the accommodating cavities 331. The main positive relay 3121 is a caseless relay 312, with the outer wall of the switch unit 3124 of the main positive relay 3121 exposed within the accommodating cavity 331. The wall of the accommodating cavity 331 is connected to the main positive relay 3121, securing the main positive relay 3121 to the accommodating cavity 331. The main negative relay 3122 is fixedly mounted in another accommodating cavity 331. The main negative relay 3122 is a caseless relay 312. The outer walls of the switch unit 3124 of the main negative relay 3122 are exposed within the accommodating cavity 331. The walls of the accommodating cavity 331 are connected to the main negative relay 3122, securing the main negative relay 3122 to the accommodating cavity 331. Thus, while the housing 33 accommodates, limits, secures, and protects the main positive relay 3121 and the main negative relay 3122, the housing structures of both the main positive relay 3121 and the main negative relay 3122 can be omitted. This allows for a more compact layout of the power distribution device 30, reduces design margins, space waste, and occupied space, and reduces the weight of the power distribution device 30. This facilitates the formation of an integrated, miniaturized, lightweight, and simplified power distribution device 30, thereby reducing the production cost of the power distribution device 30. The conductive structure 311 of the relay 312 is disposed outside the accommodating cavity 331 without occupying additional space within the accommodating cavity 331. In particular, the second conductive portion 3113 of the conductive structure 311 of the relay 312 is disposed on the outside of the accommodating cavity 331 near the insulating thermal conductor 32, so that the conductive structure 311 of the relay 312 can be directly insulated and thermally connected to the insulating thermal conductor 32 via the second conductive portion 3113. To facilitate connecting the relay 312 to the wall of the accommodating cavity 331, the power distribution device 30 is provided with a cover 39. The cover 39 is sleeved and mated with the relay 312. The cover 39 has clips 391 on opposite sides thereof, which are clipped and connected to the wall of the accommodating cavity 331. The cover 39 is provided with through-holes 392 corresponding to the contacts 3125 of the relay 312. The contacts 3125 are exposed through the corresponding through-holes 392, so that the contacts 3125 can be connected to the high-voltage circuit.

[0253] The two accommodating cavities 331 are arranged adjacent to each other, that is, arranged close to each other. The housing 33 is provided with an insulating structure 332, which is arranged between the two accommodating cavities 331. The insulating structure 332 can insulate and separate the two accommodating cavities 331, and in particular, can insulate and separate the main positive relay 3121 from the main negative relay 3122, and in particular, can insulate and separate the contacts 3125 of the main positive relay 3121 from the contacts 3125 of the main negative relay 3122. Based on this, the insulation between the contacts 3125 of the main positive relay 3121 and the contacts 3125 of the main negative relay 3122 can be improved, the risk of short circuits can be reduced, and the reliability and safety of the power distribution device 30 can be improved.

[0254] Each electrical component 31 also includes a pre-charge relay 3123, a shunt 3131, a Hall effect current sensor 3132, a main fuse 3141, and a pre-charge resistor 315. The pre-charge relay 3123 is located on the side of the main positive relay 3121 facing away from the main negative relay 3122 and is positioned close to the main positive relay 3121. The pre-charge resistor 315 is located on the side of the pre-charge relay 3123 facing away from the main positive relay 3121 and is positioned close to the pre-charge relay 3123. The main fuse 3141 is located on the side of the main positive relay 3121 facing away from the main negative relay 3122 and is positioned next to both the pre-charge relay 3123 and the pre-charge resistor 315. The main fuse 3141 is positioned close to the main positive relay 3121, the pre-charge relay 3123, and the pre-charge resistor 315. The shunt 3131 and the Hall effect current sensor 3132 both serve as current sensors 313. The Hall effect current sensor 3132 is located on the side of the main fuse 3141 facing away from the main positive relay 3121. The shunt 3131 is located on the side of the main negative relay 3122 facing 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 effect current sensor 3132, the main fuse 3141, and the pre-charge resistor 315 are electrically connected according to the circuit schematic diagram of the power distribution device 30. The circuit schematic diagram of the power distribution device 30 is 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, and can reduce the overall external dimensions of the distribution device 30, which can be conducive to the formation of an integrated and miniaturized distribution device 30.

[0255] The power distribution device 30 also includes a cover 38, which is mounted on the side of the housing 33 away from the base 34. The cover 38, the housing 33, and the base 34 cooperate to define the interior space of the housing 33. Based on the compact layout of the aforementioned electrical components 31, the housing 33 and the base 34 enclose an interior space to accommodate the main fuse 3141; the housing 33 and the cover 38 enclose another interior space to accommodate the pre-charge relay 3123 and the pre-charge resistor 315; and the main positive relay 3121 and the main negative relay 3122 are mounted one-to-one in the two accommodating chambers 331 of the housing 33.

[0256] Each electrical component 31 is provided with a first connector 317 having a first connecting portion 3171 for removably electrically connecting to the second connector 372 of the connector 37. For any electrical component 31, the gap between it and the adjacent electrical component 31 can serve as a first gap 316, and the first connecting portion 3171 of its first connector 317 is located outside each of its first gaps 316. Taking the pre-charge relay 3123 as an example, the main positive relay 3121, the pre-charge resistor 315, and the main fuse 3141 are all located adjacent to the pre-charge relay 3123. The gaps between the main positive relay 3121 and the pre-charge relay 3123, the gap between the pre-charge resistor 315 and the pre-charge relay 3123, and the gap between the main fuse 3141 and the pre-charge relay 3123 can all serve as first gaps 316. However, the sizes of these first gaps 316 can be the same or different. The first connection portion 3171 of the first connector 317 provided on the pre-fill relay 3123 can be located outside each first gap 316 of the pre-fill relay 3123. That is, the first connection portion 3171 provided on the pre-fill relay 3123 can be located outside the gap between the main positive relay 3121 and the pre-fill relay 3123, outside the gap between the pre-fill resistor 315 and the pre-fill relay 3123, and outside the gap between the main fuse 3141 and the pre-fill relay 3123. Therefore, in this embodiment, the first connection portion 3171 of the pre-fill relay 3123 is located on the side of the pre-fill relay 3123 facing the cover 38. Similarly, the first connection portions 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-fill resistor 315 can be located as far away from their respective first gaps 316 as possible. Of course, depending on layout design requirements, some electrical devices 31 may have their first connection portions 3171 positioned within their first gaps 316. Therefore, by positioning the first connection portions 3171 outside the first gaps 316 of the corresponding electrical devices 31, the connection operation of the first connection portions 3171 can be performed in the space outside the first gaps 316 of the corresponding electrical devices 31, thereby ensuring and improving the ease of connecting and disconnecting the first connection portions 3171. Furthermore, each first gap 316 of the electrical device 31 does not require space to accommodate the first connection portion 3171, nor does it require space for connection operations. This facilitates the desired reduction of the gap between the electrical device 31 and adjacent electrical devices 31, facilitating a more compact overall layout of the electrical devices 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.

[0257] The power distribution device 30 also includes two connectors 37, one of which is used to connect to the battery cell 10 for 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 both connectors 37 are exposed outside the cover 38. Depending on 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 which it is to be connected. The second connector 372 is bent at one end near 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 removable plug-in mating with the first connecting portion 3171 of the corresponding electrical component 31. The plug-in fitting 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 33. Based on this, when the assembly between the cover body 38 and the shell 33 is completed, the second connection part 3721 and the corresponding first connection part 3171 can be precisely aligned and the plug-in fitting 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.

[0258] The portion of the second connector 372 that connects between the connector 37 and its second connecting portion 3721 is the conductive connector 3722. This conductive connector 3722 utilizes a conductive sheet, FPC, or PCB, replacing a wiring harness. This reduces the number of wiring harnesses required, reduces wiring harness interference, and reduces harness wear. This ensures and improves the structural reliability of the connector 37 and the second connector 372, 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, connector 37, and conductive connector 3722 are integrally injection molded.

[0259] Please refer to Figures 3 and 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.

[0260] By adopting the above solution, the battery 1 can ensure and improve the space utilization, volume utilization and energy density of the battery 1 by applying the distribution device 30 provided in the embodiment of the present application.

[0261] Please refer to FIG1 . Some embodiments of the present application provide an electric device, which includes a battery 1 provided in an embodiment of the present application.

[0262] 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.

[0263] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements or improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A power distribution device, wherein: 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, wherein: 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, wherein: 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, wherein: 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, wherein: 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, wherein: The insulating heat-conducting component is embedded in the base.

7. The power distribution device according to claim 5 or 6, wherein: 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, wherein: 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, wherein: 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, wherein: 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, wherein: 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, wherein: 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, wherein: 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, wherein: 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, wherein: 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, wherein: 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, wherein: 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, wherein: 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, wherein: 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 of the first gaps corresponding to the electrical device.

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

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

Images