Power distribution apparatus, battery pack, and electric device

Abstract

A power distribution apparatus (10), a battery pack (20), and an electric device (30). The power distribution apparatus (10) comprises: a power distribution body (100), provided with a power distribution circuit for realizing power distribution; and an active module (200), comprising a high-voltage connector (210). The power distribution body (100) is connected to an external circuit by means of the high-voltage connector (210), and the active module (200) is detachably connected to the power distribution body (100). The detachable design of the power distribution body (100) and the active module (200) allows the active module (200) to be replaced on the basis of different vehicle models or connector types, so that the compatibility and universality of the power distribution apparatus (10) are improved, thereby ensuring the expandability of a power distribution system.

Description

Power distribution device, battery pack and electrical equipment

[0001] The present application claims priority to the Chinese patent application No. 202422381929.5, filed on September 27, 2024, and entitled "Power distribution device, battery pack and electrical equipment", the whole content of which is incorporated herein by reference. TECHNICAL FIELD

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

[0003] With the development of automobiles, especially the popularization of new energy vehicles, the application of battery packs is becoming more and more widespread.

[0004] The battery pack includes a power distribution device to be responsible for the distribution, control and protection of electric energy. However, the conventional power distribution device is usually designed integrally for a vehicle type, which cannot adapt to the needs of different connector types of multiple vehicle types, has poor compatibility, and limits its versatility. SUMMARY

[0005] In view of the above problems, the present application provides a power distribution device, a battery pack and electrical equipment, which improves the compatibility and versatility and ensures the scalability of the power distribution system.

[0006] In one aspect, the present application provides a power distribution device, comprising:

[0007] a power distribution main body provided with a power distribution circuit for realizing power distribution;

[0008] a movable module comprising a high-voltage connector, the power distribution main body being connected with an external circuit through the high-voltage connector, and the movable module being separably connected with the power distribution main body.

[0009] The separable design of the power distribution main body and the movable module makes the movable module replaceable according to different vehicle types or connector types, so that when a new vehicle type or a new connector is needed to be adapted, only the movable module needs to be replaced, without the need to replace the entire power distribution device, thereby improving the compatibility and versatility of the power distribution device and ensuring the scalability of the power distribution system.

[0010] In one possible implementation, the movable module comprises at least a first type of movable module and a second type of movable module, and the first type of movable module and the second type of movable module are replaceably connected with the power distribution main body.

[0011] The design of the first type of movable module and the second type of movable module makes it possible to realize the connection between them and the power distribution main body without adjusting the power distribution main body, thereby improving the interchangeability and adaptability of the movable module and further improving the market competitiveness.

[0012] In a possible implementation, the power distribution main body comprises a first shell and a first electrical component arranged in the first shell;

[0013] The activity module comprises a second shell and a second electrical component arranged in the second shell, and when the activity module is connected with the power distribution main body, the first electrical component is electrically connected with the second electrical component.

[0014] The power distribution main body and the activity module are both designed in a modular manner, so that each part can be independently manufactured, tested and replaced, improving the reliability of the system. Since the activity module can be replaced, when new electrical functions are needed, only the activity module containing the corresponding second electrical component needs to be replaced, reducing the cost.

[0015] In a possible implementation, the power distribution main body further comprises a first connecting row arranged at one end of the first shell along a first direction towards the activity module, and the activity module comprises a second connecting row arranged at one end of the second shell along the first direction towards the power distribution main body,

[0016] The first connecting row is electrically connected with the first electrical component, and the second connecting row is electrically connected with the second electrical component,

[0017] When the activity module is connected with the power distribution main body, the first connecting row is electrically connected with the second connecting row to electrically connect the first electrical component and the second electrical component.

[0018] When the activity module is connected with the power distribution main body, the first connecting row is electrically connected with the second connecting row to electrically connect the first electrical component and the second electrical component. Exemplarily, a locking mechanism or the like can be further used between the first connecting row and the second connecting row to enhance the stability and reliability of the connection. When the electrical component needs to be replaced or repaired, only the connection between the first connecting row and the second connecting row needs to be disconnected, and then the corresponding electrical component is replaced or repaired, simplifying the maintenance process.

[0019] In a possible implementation, the first connecting row and the second connecting row overlap along a second direction,

[0020] The first direction intersects the second direction.

[0021] The first connecting row and the second connecting row overlap, realizing full utilization of space and improving the compactness of the overall structure. In addition, the overlapping design makes it easy to replace the activity module by canceling the overlap in the second direction, replacing the corresponding module, and reconnecting.

[0022] In a possible implementation, the first connecting row is provided with a first connecting hole penetrating in the second direction, and the second connecting row is provided with a second connecting hole penetrating in the second direction, the first connecting hole is opposite to the second connecting hole,

[0023] The power distribution device further comprises a first fastener, the first fastener penetrating the first connecting hole and the second connecting hole to connect the first connecting row and the second connecting row.

[0024] When a certain component needs to be replaced or upgraded, the first connecting row and the second connecting row can be separated by loosening the fastener, and the electrical connection between the movable module and the power distribution main body is cancelled, in addition, the fastener can provide a certain clamping force to ensure the stable electrical and mechanical contact between the connecting rows, and the connection reliability is improved.

[0025] In a possible implementation, the movable module is further provided with a first connecting piece, the first connecting piece is arranged on the second shell, the first connecting piece is arranged on the side of the second connecting row away from the first connecting row, and the first fastener is connected to the first connecting piece.

[0026] The first fastener can connect the second connecting row and the first connecting piece, and finally connect the first connecting row, the first connecting piece provides a positioning point for the first fastener, and further ensures the connection firmness of the first connecting row and the second connecting row through the cooperation of the threads of the first connecting piece and the fastener.

[0027] In a possible implementation, the first shell is provided with a first shell connecting part, and the second shell is provided with a second shell connecting part,

[0028] The first shell connecting part and the second shell connecting part are detachably connected.

[0029] The first shell and the second shell are connected in a detachable manner, so that the power distribution main body and the movable module are further physically reinforced through the first shell connecting part and the second shell connecting part on the basis of the electrical connection between the first electrical component and the second electrical component, the stable connection between the power distribution main body and the movable module is ensured, and the flexibility and maintainability of the power distribution system are improved.

[0030] In a possible implementation, the first connecting row is located on the side of the first shell connecting part facing the movable module in the first direction,

[0031] The second shell connecting part is located on the side of the second connecting row facing the power distribution main body in the first direction,

[0032] When the activity module is connected with the power distribution main body, the first shell connecting part and the second shell connecting part are arranged and connected in a second direction, and the first connecting row and the second connecting row are arranged and connected in a first direction.

[0033] The relative positions of the first connecting row, the first shell connecting part, the second connecting row and the second shell connecting part and the connection modes therebetween constitute the connection basis of the power distribution main body and the activity module, ensuring the stability of electrical connection and physical structure, and further making the power distribution system have high flexibility.

[0034] In a possible implementation, the first shell connecting part is provided with a second connecting piece, and the second shell connecting part is provided with a fixing sleeve,

[0035] The inner side of the second connecting piece is provided with a first threaded hole, and the inner side of the fixing sleeve is provided with a second threaded hole,

[0036] The power distribution device further comprises a second fastener, which passes through the first threaded hole and the second threaded hole to connect the first shell and the second shell.

[0037] By providing the second connecting piece on the first shell connecting part and the fixing sleeve on the second shell connecting part, and connecting them by using the second fastener, firm and reliable connection is achieved between the first shell and the second shell of the power distribution system, the overall stability of the power distribution system is improved, and maintenance and repair of the power distribution system are facilitated.

[0038] In a possible implementation, the first electrical component is multiple, and the multiple first electrical components comprise at least one of a relay, a fuse, a pre-charge resistor, a shunt and a circuit board, and the multiple first electrical components constitute a power distribution circuit.

[0039] The multiple first electrical components collectively constitute a power distribution circuit, and the multiple first electrical components ensure the stability and safety of the power distribution circuit.

[0040] In a possible implementation, the first shell comprises a first front shell, a first middle shell and a first rear shell arranged in sequence in a second direction, the first middle shell is provided with openings at both ends in the second direction, and the first front shell and the first rear shell respectively plug the two ends of the first middle shell,

[0041] The first electrical component is arranged on the inner side of the first middle shell,

[0042] The first connecting row extends from the first middle shell in the first direction, and the first direction intersects the second direction.

[0043] The layered structure design of the first front shell, the first middle shell and the first rear shell protects the electrical components inside the first shell body, facilitates maintenance and repair, and improves the reliability and service life of the power distribution device.

[0044] Another aspect of the present application provides a battery pack comprising the power distribution device of any one of the possible implementation manners described above.

[0045] Still another aspect of the present application provides a power utilization device comprising the battery pack described above.

[0046] According to the power distribution device of the present application, the separable design of the power distribution body and the movable module enables the movable module to be replaced according to different vehicle models or connector types, so that when a new vehicle model or connector needs to be adapted, only the movable module needs to be replaced, without the need to replace the entire power distribution device, thereby improving the compatibility and universality of the power distribution device and ensuring the scalability of the power distribution system. BRIEF DESCRIPTION OF DRAWINGS

[0047] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0048] Fig. 1 is a structural schematic diagram of the power distribution device of the present application from a first angle;

[0049] Fig. 2 is a structural schematic diagram of the power distribution device of the present application from a second angle;

[0050] Fig. 3 is a structural schematic diagram of the power distribution device of the present application showing a first type of movable module and a second type of movable module;

[0051] Fig. 4 is an exploded view of the power distribution body in the power distribution device of the present application;

[0052] Fig. 5 is a structural schematic diagram of the power distribution device of the present application from a third angle;

[0053] Fig. 6 is a structural schematic diagram of the power distribution device of the present application from a fourth angle;

[0054] Fig. 7 is a partial structural schematic diagram of the power distribution device of the present application;

[0055] Fig. 8 is an exploded view of the movable module in the power distribution device of the present application;

[0056] Fig. 9 is a schematic diagram of the battery pack of the present application;

[0057] FIG. 10 is a schematic diagram of an electric device according to an embodiment of the present application.

[0058] BRIEF DESCRIPTION OF DRAWINGS 10 - power distribution device; 100 - power distribution main body; 110 - first housing; 110a - first front housing; 110b - first middle housing; 110c - first rear housing; 111 - first housing connecting part; 112 - second connecting member; 120 - first electrical component; 121 - relay; 121a - positive relay; 121b - negative relay; 122 - shunt; 122a - positive shunt; 122b - negative shunt; 123 - circuit board; 130 - first connecting strip; 131 - first connecting hole; 200 - movable module; 200a - first type movable module; 200b - second type movable module; 210 - high voltage connector; 220 - second housing; 220a - second front housing; 220b - second middle housing; 220c - second rear housing; 221 - first connecting member; 2211 - third connecting hole; 222 - second housing connecting part; 223 - fixing sleeve; 230 - second connecting strip; 231 - second connecting hole; 300 - first fastener; 400 - second fastener; 20 - battery pack; 30 - electric device. DETAILED DESCRIPTION

[0059] In order to make the above-mentioned purposes, features and advantages of the embodiments of the present application more obvious and easy to understand, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0060] With the development of automobiles, new energy vehicles are becoming increasingly popular, including pure electric vehicles, plug-in hybrid electric vehicles, etc. With the popularity of new energy vehicles, battery packs, as one of the core components of new energy vehicles, are widely used in various electric vehicles, including cars, trucks, buses, etc.

[0061] The battery pack includes a power distribution device responsible for the distribution, control and protection of electrical energy. For example, the power distribution device can be a battery disconnect unit (BDU) responsible for quickly disconnecting the circuit when the battery has abnormal conditions such as overcharging, overtemperature, overcurrent, etc., to protect the battery and the entire electrical system from damage. In addition, the battery disconnect unit controls the charging and discharging process of the electric vehicle to ensure the normal operation of the electrical system. In addition, the battery disconnect unit is also used to monitor the voltage, current and other parameters of the battery pack, and transmits abnormal information to other battery management systems through a communication interface to realize the monitoring and protection of electrical energy.

[0062] However, conventional power distribution devices, such as battery disconnect units, are usually designed integrally for a vehicle model and cannot adapt to the needs of different connector types or different installation positions of multiple vehicle models, have poor compatibility, and limit their versatility.

[0063] In addition, if multiple power distribution devices are designed according to different connector types or different installation positions, the design cycle is long, the cost of mold design and manufacturing is high, the cost performance is low, and manpower and resources are wasted.

[0064] For conventional power distribution devices, some researchers have designed a modular battery disconnect unit structure including a positive module and a negative module. However, this design is only applicable to battery disconnect units with high-voltage connectors in the middle, and a bridge connection is required between the two modules, which cannot be compatible with the current connector type on both sides, and has low versatility.

[0065] Therefore, the present application provides a power distribution device, a battery pack and an electrical equipment. Through the separable design of the power distribution main body and the movable module, the movable module can be replaced according to different vehicle models or connector types. When a new vehicle model or a new connector is needed to be adapted, only the movable module needs to be replaced, without replacing the entire power distribution device, which improves the compatibility and versatility of the power distribution device and ensures the scalability of the power distribution system.

[0066] The power distribution device 10 provided by the embodiments of the present application will be described in detail below in combination with FIGS. 1-10.

[0067] In the embodiments of the present application, as shown in FIGS. 1 and 2, x is the first direction and y is the second direction.

[0068] The power distribution device 10 provided by the embodiment can be a battery pack circuit breaking unit (BDU) for example. As shown in FIGS. 1 and 2, the power distribution device 10 includes a power distribution main body 100 and a movable module 200. The power distribution main body 100 is provided with a power distribution circuit for realizing power distribution, and the movable module 200 includes a high-voltage connector 210, the power distribution main body 100 is connected with an external circuit through the high-voltage connector 210, and the movable module 200 is detachably connected with the power distribution main body 100. For example, the detachable connection between the movable module 200 and the power distribution main body 100 can include a mechanical locking structure, an electrical connection structure, etc., to ensure the physical and electrical connection between the two.

[0069] As can be seen, the detachable design of the power distribution main body 100 and the movable module 200 enables the movable module 200 to be replaced according to different vehicle models or connector types, and when it is necessary to adapt to a new vehicle model or a new connector, only the movable module 200 needs to be replaced, without the need to replace the entire power distribution device 10, thereby improving the compatibility and universality of the power distribution device 10 and ensuring the scalability of the power distribution system.

[0070] In addition, compared with the traditional integrated design, the modular design of the power distribution device 10 reduces the cost and time of customized design for different vehicle models, and also enables the power distribution device 10 to be flexibly arranged according to the actual installation space, improves the space utilization rate of the battery pack, and further improves the overall performance of the battery pack and the user experience of the new energy vehicle. In addition, the modular design also realizes the adaptability between the power distribution device 10 and the production mold, thereby meeting the use requirements of some customers.

[0071] In addition, the traditional integrated power distribution device design needs to be checked for electrical creepage distance after completion. Compared with the traditional design, the embodiment only needs to check the movable module 200 and the electrical connection area after the power distribution main body 100 has been checked, thereby saving time and labor cost.

[0072] In some embodiments, in combination with FIGS. 1 and 3, the movable module 200 includes at least a first type of movable module 200a and a second type of movable module 200b, and the first type of movable module 200a and the second type of movable module 200b can be alternatively connected with the power distribution main body 100. The design of the first type of movable module 200a and the second type of movable module 200b enables the connection between the two and the power distribution main body 100 without the need to adjust the power distribution main body 100, thereby improving the interchangeability and adaptability of the movable module 200 and further improving the market competitiveness.

[0073] In addition, the activity module 200 can also include a third type of module and a fourth type of module, etc. which can be alternatively connected with the power distribution main body 100. The design of the multiple types of activity modules 200 enables the power distribution device 10 to be adapted to multiple types of vehicles and connectors, thereby enhancing the flexibility and versatility of the power distribution device 10.

[0074] In addition, during maintenance, if a certain activity module 200 fails or is damaged, the maintenance personnel can replace the corresponding module without disassembling or replacing the entire power distribution device 10, thereby improving the maintenance efficiency. In addition, when new technology or new standards appear, a new activity module 200 can be designed accordingly to adapt to the changes, without the need to redesign the entire power distribution device 10, thereby saving design costs.

[0075] In some embodiments, in combination with FIGS. 1 and 4, the power distribution main body 100 includes a first housing 110 and a first electrical component 120 disposed in the first housing 110; the activity module 200 includes a second housing 220 and a second electrical component disposed in the second housing 220, and when the activity module 200 is connected with the power distribution main body 100, the first electrical component 120 is electrically connected with the second electrical component. In this way, it is ensured that when the activity module 200 is connected with the power distribution main body 100, electrical connection is achieved between them through the first electrical component 120 and the second electrical component, which is simple and efficient and helps to reduce installation time.

[0076] In addition, the power distribution main body 100 and the activity module 200 are both designed in a modular manner, so that each part can be independently manufactured, tested and replaced, thereby improving the reliability of the system. Since the activity module 200 can be replaced, when new electrical functions are needed, only the activity module 200 containing the corresponding second electrical component needs to be replaced, thereby reducing costs.

[0077] In some embodiments, in combination with FIGS. 5 and 6, the power distribution main body 100 further includes a first connection row 130 disposed at one end of the first housing 110 along a first direction towards the activity module 200, and the activity module 200 includes a second connection row 230 disposed at one end of the second housing 220 along the first direction towards the power distribution main body 100. It can be seen that the first connection row 130 and the second connection row 230 are both arranged along the first direction, ensuring the alignment accuracy and convenience during connection. Exemplarily, the first connection row 130 can be provided with two, and correspondingly, the second connection row 230 is also provided with two, and the first connection row 130 and the second connection row 230 are opposite to each other.

[0078] The first connecting strip 130 is electrically connected with the first electrical component 120, and the second connecting strip 230 is electrically connected with the second electrical component. Exemplarily, the first connecting strip 130 and the second connecting strip 230 can be provided with electrical contacts or pins to ensure good contact and electrical conductivity.

[0079] When the movable module 200 is connected with the power distribution main body 100, the first connecting strip 130 is electrically connected with the second connecting strip 230 to electrically connect the first electrical component 120 and the second electrical component. Exemplarily, a locking mechanism or the like can be further arranged between the first connecting strip 130 and the second connecting strip 230 to enhance the stability and reliability of the connection. When the electrical component needs to be replaced or repaired, the connection between the first connecting strip 130 and the second connecting strip 230 is only needed to be disconnected, and then the corresponding electrical component is replaced or repaired, thereby simplifying the maintenance process.

[0080] By arranging the first connecting strip 130 and the second connecting strip 230 on the power distribution main body 100 and the movable module 200 respectively and realizing the electrical connection between the two when connected, the connection reliability is ensured, and the reliability, maintainability and expandability of the power distribution system are improved.

[0081] In some embodiments, in combination with FIGS. 5, 6 and 8, the first connecting strip 130 and the second connecting strip 230 are overlapped along the second direction, and the first direction (such as the x direction) intersects the second direction (such as the y direction). That is, the first direction can be arranged at an angle with the second direction, and in an example, the first direction can be perpendicular to the second direction.

[0082] In this way, the first connecting strip 130 and the second connecting strip 230 are overlapped to realize the full use of space and improve the compactness of the overall structure. In addition, the design of overlapping makes it simple and convenient to replace the movable module 200 by canceling the disconnection of the second direction overlap, replacing the corresponding module, and reconnecting.

[0083] In addition, the design of overlapping can provide stable connection and reduce the problem of poor contact caused by vibration or movement, which helps to maintain the stability of electrical connection in long-time operation or harsh environmental conditions.

[0084] It should be noted that the first connecting strip 130 and the second connecting strip 230 can be overlapped and positioned by automatic equipment, which realizes the rapid positioning of the connection point, reduces manual operation, and ensures the work efficiency.

[0085] In some embodiments, in combination with FIGS. 5 and 6, the first connecting row 130 is provided with a first connecting hole 131 penetrating in the second direction, the second connecting row 230 is provided with a second connecting hole 231 penetrating in the second direction, the first connecting hole 131 is opposite to the second connecting hole 231, thus, the first connecting hole 131 and the second connecting hole 231 are opposite in the second direction, when the first connecting row 130 and the second connecting row 230 are aligned, the first connecting hole 131 and the second connecting hole 231 will correspond, facilitating the installation of the fastener.

[0086] The power distribution device 10 further comprises a first fastener 300, the first fastener 300 penetrating the first connecting hole 131 and the second connecting hole 231 to connect the first connecting row 130 and the second connecting row 230, for example, the first fastener 300 can be a bolt, a screw or other types of fasteners, which can be selected according to actual needs, and is not limited here.

[0087] Thus, when a certain component needs to be replaced or upgraded, the first connecting row 130 and the second connecting row 230 can be separated by loosening the fastener, and the electrical connection between the movable module 200 and the power distribution main body 100 is cancelled. In addition, the fastener can provide a certain clamping force to ensure the stable electrical and mechanical contact between the connecting rows, improving the connection reliability.

[0088] In some embodiments, in combination with FIGS. 5 and 6, the movable module 200 is further provided with a first connecting piece 221, which can be a nut piece, the first connecting piece 221 is arranged on the second shell 220, the first connecting piece 221 is arranged on the side of the second connecting row 230 away from the first connecting row 130, the inner side of the first connecting piece 221 defines a third connecting hole 2211 opposite to the second connecting hole 231, and the first fastener 300 further penetrates the third connecting hole 2211 and is connected to the first connecting piece 221. Correspondingly, the first fastener 300 is provided with a thread matched with the first connecting piece 221.

[0089] In the connection process, first, the first connecting row 130 and the second connecting row 230 need to be aligned so that the first connecting hole 131 is opposite to the second connecting hole 231, then the first fastener 300 is penetrated through the second connecting hole 231 and screwed into the third connecting hole 2211 on the inner side of the first connecting piece 221, as the fastener is rotated, the thread of the fastener is engaged with the thread of the first connecting piece 221 until the required fastening force is reached.

[0090] In this way, the first fastener 300 can pass through the second connecting hole 231 on the second connecting row 230, the third connecting hole 2211 on the first connecting piece 221, and finally be connected with the first connecting hole 131 on the first connecting row 130. The first connecting piece 221 provides a positioning point for the first fastener 300, and further ensures the firmness of the connection between the first connecting row 130 and the second connecting row 230 through the cooperation of the threads of the first connecting piece 221 and the fastener.

[0091] In some embodiments, in combination with FIGS. 5, 6 and 7, the first shell connecting part 111 is provided on the first shell 110, and the second shell connecting part 222 is provided on the second shell 220. The first shell connecting part 111 and the second shell connecting part 222 are detachably connected. For example, at least one of the first shell connecting part 111 and the second shell connecting part 222 can be provided with a flange, a slot, a threaded hole, a buckle or other types of connecting elements to achieve detachable connection between the two. The specific selection can be made according to the actual situation, which is not limited here.

[0092] The first shell 110 and the second shell 220 are connected by means of detachable connection, so that the power distribution main body 100 and the mobile module 200 are further physically reinforced through the first shell connecting part 111 and the second shell connecting part 222 on the basis of the electrical connection between the first electrical component 120 and the second electrical component, thereby ensuring the stable connection between the power distribution main body 100 and the mobile module 200 and improving the flexibility and maintainability of the power distribution system.

[0093] In some embodiments, in combination with FIGS. 5, 6 and 8, the first connecting row 130 is located on the side of the first shell connecting part 111 facing the mobile module 200 in the first direction, and the second shell connecting part 222 is located on the side of the second connecting row 230 facing the power distribution main body 100 in the first direction. In this way, when the mobile module 200 is connected with the power distribution main body 100, the first connecting row 130 and the second connecting row 230 will be opposite in the first direction and achieve electrical connection.

[0094] When the mobile module 200 is connected with the power distribution main body 100, the first shell connecting part 111 and the second shell connecting part 222 are arranged and connected in a stacked manner in the second direction, and the first connecting row 130 and the second connecting row 230 are arranged and connected in a stacked manner. The first direction intersects the second direction. Optionally, the first direction can be perpendicular to the second direction.

[0095] In this way, the stacked arrangement between the first connecting row 130 and the second connecting row 230 ensures the compactness of the physical structure and also provides stable support for electrical connection. In addition, the stacked arrangement design also helps to disperse the influence of external force on the connecting point, thereby improving the overall reliability of the power distribution system.

[0096] In this way, the relative positions and connection modes of the first connection row 130, the first shell connection part 111, the second connection row 230 and the second shell connection part 222 constitute the connection basis of the power distribution main body 100 and the movable module 200, ensuring the stability of electrical connection and physical structure, and further making the power distribution system have high flexibility.

[0097] In some embodiments, in combination with FIGS. 5, 6 and 7, the first shell connection part 111 is provided with a second connecting piece 112, which is optionally a nut piece. The second shell connection part 222 is provided with a fixing sleeve 223. The inner side of the second connecting piece 112 is provided with a first threaded hole, and the inner side of the fixing sleeve 223 is provided with a second threaded hole. Exemplarily, the second connecting piece 112 can be provided with three, and correspondingly, the fixing sleeve 223 is also provided with three. The second connecting piece 112 and the fixing sleeve 223 respectively provide connection points for the first shell 110 and the second shell 220, ensuring the stable connection between the first shell and the second shell. The first threaded hole and the second threaded hole jointly constitute a complete threaded channel, providing a guide for the second fastener 400, and ensuring that the fastener can smoothly pass through and correctly screw into the threaded hole.

[0098] The power distribution device 10 further comprises a second fastener 400, which passes through the first threaded hole of the second connecting piece 112 and the second threaded hole of the fixing sleeve 223 to connect the first shell 110 and the second shell 220. Exemplarily, the second fastener 400 can be a bolt, a screw, etc. The second fastener 400 passes through the first threaded hole and the second threaded hole, and connects the first shell 110 and the second shell 220 through the meshing action of the threads. This connection mode is simple and reliable, and enhances the overall stability of the power distribution system.

[0099] In this way, by setting the second connecting piece 112 on the first shell connection part 111 and the fixing sleeve 223 on the second shell connection part 222, and using the second fastener 400 to connect them, the first shell 110 and the second shell 220 of the power distribution system are connected firmly and reliably, the overall stability of the power distribution system is improved, and the maintenance and repair of the power distribution system are facilitated.

[0100] In some embodiments, in combination with FIG. 4, the first electrical component 120 is a plurality of, and the plurality of first electrical components 120 include at least one of a relay 121, a fuse, a pre-charge resistor, a shunt 122, and a circuit board 123. The plurality of first electrical components 120 constitute a power distribution circuit.

[0101] Specifically, the relay 121 is an electric control device that can make the output circuit controlled to be turned on or turned off when the input quantity (such as voltage, current) reaches a specified value. In the power distribution circuit, the relay 121 is often used to realize the automatic control and protection of the circuit, such as overload protection, short circuit protection, etc. Optionally, the relay 121 can include a positive relay 121a and a negative relay 121b. The fuse is an electrical element that ensures the safe operation of the circuit. When the current in the circuit is too large, the fuse will melt, thereby cutting off the circuit, preventing equipment damage and fire accidents, and ensuring the safety of the power distribution circuit.

[0102] The pre-charge resistor is mainly used to limit the inrush current generated by the circuit at the start-up or switching moment. In the circuit with large capacitive or inductive load, the pre-charge resistor can ensure the slow rise of the current, avoiding the impact on other elements in the circuit. The shunt 122 is an instrument for measuring direct current. In the power distribution circuit, the shunt 122 can be used to measure the current of a branch for monitoring, recording or as part of the control signal. Optionally, the shunt 122 can include a positive shunt 122a and a negative shunt 122b.

[0103] The circuit board 123 is the support body of electronic components and the carrier of electrical connection between electronic components. Specifically, in the power distribution circuit, the circuit board 123 can integrate the above-mentioned relays 121, fuses, pre-charge resistors, shunts 122, and other electronic components for realizing preset functions. In this way, the plurality of first electrical components 120 collectively constitutes a power distribution circuit, and the plurality of first electrical components 120 ensures the stability and safety of the power distribution circuit.

[0104] In some embodiments, in combination with FIGS. 2 and 4, the first shell 110 includes a first front shell 110a, a first middle shell 110b, and a first rear shell 110c arranged in sequence along the second direction. The first middle shell 110b is provided with openings at both ends along the second direction, and the first front shell 110a and the first rear shell 110c respectively plug the two ends of the first middle shell 110b. The design of the openings allows the first front shell 110a and the first rear shell 110c to plug the two ends of the first middle shell 110b, thereby forming a closed or semi-closed space.

[0105] The first electrical component 120 is arranged at the inner side of the first middle shell 110b, so that the first electrical component 120 is accommodated in the space formed by the first front shell 110a, the first middle shell 110b and the first rear shell 110c, and is protected by the first shell 110 to avoid interference or damage from the external environment. The layout also facilitates maintenance and replacement of the first electrical component 120. The first connecting strip 130 extends from the first middle shell 110b in the first direction, which intersects the second direction. Optionally, the first direction can be perpendicular to the second direction. In this way, the electrical components inside the first shell 110 can be electrically connected to the outside through the first connecting strip 130.

[0106] In this way, the layered structure design of the first front shell 110a, the first middle shell 110b and the first rear shell 110c protects the electrical components inside the first shell 110, facilitates maintenance and repair, and improves the reliability and service life of the power distribution device 10.

[0107] In some embodiments, in combination with FIG. 8, the second shell 220 includes a second front shell 220a, a second middle shell 220b and a second rear shell 220c arranged in sequence along the second direction. The second middle shell 220b has openings at both ends along the second direction, and the second front shell 220a and the second rear shell 220c respectively seal the two ends of the second middle shell 220b. The design of the openings allows the second front shell 220a and the second rear shell 220c to seal the two ends of the second middle shell 220b, thereby forming a closed or semi-closed space.

[0108] The high-voltage connector 210 and the second electrical component are arranged at the inner side of the second middle shell 220b, so that the high-voltage connector 210 and the second electrical component are accommodated in the space formed by the second front shell 220a, the second middle shell 220b and the second rear shell 220c, and are protected by the second shell 220 to avoid interference or damage from the external environment. The layout also facilitates maintenance and replacement of the high-voltage connector 210 and the second electrical component. The second connecting strip 230 extends from the second middle shell 220b in the second direction, so that the electrical components inside the second shell 220 can be electrically connected to the outside through the second connecting strip 230.

[0109] In this way, the layered structure design of the second front shell 220a, the second middle shell 220b and the second rear shell 220c protects the electrical components inside the second shell 220, facilitates maintenance and repair, and improves the reliability and service life of the power distribution device 10.

[0110] In addition, referring to FIG. 9, the embodiment further provides a battery pack 20, which can include the power distribution device 10 in the above embodiment. The battery pack 20 provided by the embodiment of the application improves the versatility of the battery pack 20 by integrating the power distribution device 10 in the above embodiment.

[0111] In addition, referring to FIG. 10, the embodiment further provides a power consumption device 30, which can include the battery pack in the above embodiment. The power consumption device 30 provided by the embodiment of the application can be a vehicle (for example, an electric vehicle or a hybrid vehicle), a mobile phone, a portable device, a notebook computer, a ship, a spacecraft, an electric toy, an electric tool, or the like. The embodiment of the application does not specially limit the power consumption device.

[0112] The power consumption device 30 according to the embodiment of the application ensures the power supply of the power consumption device 30 by arranging the battery pack 20 in the above embodiment, and also realizes the distribution of electric energy, the protection of a circuit, and the intelligent management, and the like.

[0113] The embodiments or implementations in the specification are described in a progressive manner, and each embodiment focuses on the difference from other embodiments. The same or similar parts between the embodiments can be mutually referred to.

[0114] It should be noted that the embodiments referred to in the specification as “one embodiment”, “an embodiment”, “exemplary embodiment”, “some embodiments” and the like can include specific features, structures or characteristics, but not necessarily every embodiment includes the specific features, structures or characteristics. In addition, such phrases do not necessarily refer to the same embodiment. In addition, when a specific feature, structure or characteristic is described in combination with an embodiment, it is within the knowledge of those skilled in the art to realize such feature, structure or characteristic in combination with other embodiments that are explicitly or implicitly described.

[0115] Generally, the terms should be understood at least partly by the use in the context. For example, at least partly according to the context, the term “one or more” used in the specification can be used to describe any feature, structure or characteristic in the singular sense, or can be used to describe a combination of features, structures or characteristics in the plural sense. Similarly, at least partly according to the context, terms such as “a” or “said” can be understood as conveying singular usage or conveying plural usage.

[0116] It should be readily understood that "on," "over," and "above" in the present disclosure should be interpreted in the broadest manner such that "on" means not only "directly on" but also includes the meaning of "on" with intervening features or layers therebetween, and "over" or "above" includes not only the meaning of "over" or "above" but also the meaning of "over" or "above" with no intervening features or layers therebetween (i.e., directly on).

[0117] Finally, it should be noted that the above-described embodiments are merely intended to illustrate the technical solutions of the present application, but not to limit the same; even though the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions recorded in the foregoing embodiments, or equivalent replacements can be made to some or all of the technical features thereof; and such modifications or replacements do not cause the essence of the corresponding technical solutions to depart from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A power distribution device (10) characterized by, The power distribution device (10) comprises: a power distribution main body (100) provided with a power distribution circuit for realizing power distribution; a movable module (200) comprising a high-voltage connector (210), the power distribution main body (100) being connected with an external circuit through the high-voltage connector (210), and the movable module (200) being detachably connected with the power distribution main body (100).

2. The power distribution device (10) of claim 1, characterized in that The movable module (200) comprises at least a first type of movable module (200a) and a second type of movable module (200b), and the first type of movable module (200a) and the second type of movable module (200b) are replaceable with each other and connected with the power distribution main body (100).

3. The power distribution device (10) of claim 1, characterized in that The power distribution main body (100) comprises a first shell (110) and a first electrical component (120) arranged in the first shell (110); The movable module (200) comprises a second shell (220) and a second electrical component arranged in the second shell (220), and the first electrical component (120) and the second electrical component are electrically connected when the movable module (200) is connected with the power distribution main body (100).

4. The power distribution device (10) of claim 3, characterized in that The power distribution main body (100) further comprises a first connecting row (130) arranged at one end of the first shell (110) facing the movable module (200) in a first direction, the movable module (200) comprises a second connecting row (230) arranged at one end of the second shell (220) facing the power distribution main body (100) in the first direction, The first connecting row (130) is electrically connected with the first electrical component (120), and the second connecting row (230) is electrically connected with the second electrical component, When the movable module (200) is connected with the power distribution main body (100), the first connecting row (130) and the second connecting row (230) are electrically connected to electrically connect the first electrical component (120) and the second electrical component.

5. The power distribution device (10) of claim 4, characterized in that The first connecting row (130) and the second connecting row (230) overlap in a second direction, The first direction intersects the second direction.

6. The power distribution device (10) of claim 5, characterized in that The first connecting row (130) is provided with a first connecting hole (131) penetrating in the second direction, and the second connecting row (230) is provided with a second connecting hole (231) penetrating in the second direction, and the first connecting hole (131) and the second connecting hole (231) are opposite to each other, The power distribution device (10) further comprises a first fastener (300) penetrating through the first connecting hole (131) and the second connecting hole (231) to connect the first connecting row (130) and the second connecting row (230).

7. The power distribution device (10) according to claim 6, wherein The movable module (200) is further provided with a first connecting piece (221), which is arranged on the second shell (220) and is arranged on the side of the second connecting row (230) away from the first connecting row (130). The first fastener (300) is connected to the first connecting piece (221).

8. The power distribution device (10) according to any one of claims 4-7, characterized in that, The first shell (110) is provided with a first shell connecting part (111), and the second shell (220) is provided with a second shell connecting part (222), The first shell connecting part (111) and the second shell connecting part (222) are detachably connected.

9. The power distribution device (10) according to claim 8, characterized in that The first connecting row (130) is located on the side of the first shell connecting part (111) along the first direction towards the movable module (200), The second shell connecting part (222) is located on the side of the second connecting row (230) along the first direction towards the power distribution main body (100), When the movable module (200) is connected to the power distribution main body (100), the first shell connecting part (111) and the second shell connecting part (222) are arranged and connected in a stacked manner along a second direction, and the first connecting row (130) and the second connecting row (230) are arranged and connected in a stacked manner. The first direction intersects the second direction.

10. The power distribution device (10) according to claim 9, characterized in that The first shell connecting part (111) is provided with a second connecting piece (112), and the second shell connecting part (222) is provided with a fixing sleeve (223), The inner side of the second connecting piece (112) is provided with a first threaded hole, and the inner side of the fixing sleeve (223) is provided with a second threaded hole, The power distribution device (10) further comprises a second fastener (400) which passes through the first threaded hole and the second threaded hole to connect the first shell (110) and the second shell (220).

11. The power distribution device (10) according to any one of claims 3-7, characterized in that, The first electrical component (120) is a plurality of first electrical components (120), which include at least one of a relay (121), a fuse, a pre-charge resistor, a shunt (122), and a circuit board (123). The plurality of first electrical components (120) constitute the power distribution circuit.

12. The power distribution device (10) according to any one of claims 4-7, characterized in that, The first shell (110) includes a first front shell (110a), a first middle shell (110b), and a first rear shell (110c) arranged in sequence along a second direction. The first middle shell (110b) is provided with openings at both ends along the second direction. The first front shell (110a) and the first rear shell (110c) respectively block the two ends of the first middle shell (110b), The first electrical component (120) is arranged on the inner side of the first middle shell (110b), The first connecting row (130) extends from the first middle shell (110b) along the first direction, and the first direction intersects the second direction.

13. A battery pack (20) characterized by, The power distribution device (10) of any one of claims 1-12.

14. An electrical device (30) characterized by: The battery pack (20) of claim 13.

Images