A distribution box, a battery pack and an electric device

Abstract

Embodiments of the present application provide a distribution box, a battery pack and an electrical device. The distribution box comprises a box body, the box body is provided with a containing cavity, one end of the containing cavity has an opening; an electrical device, the electrical device is arranged in the containing cavity; an upper cover, the upper cover is arranged at the opening of the containing cavity to close the containing cavity; and a BMS, the BMS is connected to one side of the upper cover close to the containing cavity and is electrically connected with the electrical device. The distribution box provided by the embodiments of the present application connects the BMS to one side of the upper cover close to the containing cavity, when the electrical device needs to be repaired, the BMS connected to the upper cover will move with the opening of the upper cover, so that the electrical device in the containing cavity leaks out, thus the maintenance personnel does not need to disassemble the BMS, can directly repair the electrical device in the containing cavity, and the difficulty of repairing the electrical device can be reduced.

Description

Technical Field

[0001] This application belongs to the field of battery technology, specifically relating to a power distribution box, a battery pack, and an electrical device. Background Technology

[0002] As an important component of the battery pack, the power distribution box is mainly used to rationally distribute and effectively control the energy of the battery pack.

[0003] In related technologies, a power distribution box typically includes a housing, electrical components, and a battery management system (BMS). The electrical components and BMS are stacked inside the housing along the height of the housing, with the BMS positioned above the electrical components along the same height. However, placing the BMS above the electrical components increases the difficulty of maintaining and repairing them. Utility Model Content

[0004] This application aims to provide a power distribution box, battery pack, and electrical equipment to solve the problem that placing the BMS above electrical components increases the difficulty of maintaining the components.

[0005] To solve the above-mentioned technical problems, this application is implemented as follows:

[0006] In a first aspect, this application discloses a power distribution box, the power distribution box comprising:

[0007] The box body has a receiving cavity, and one end of the receiving cavity has an opening;

[0008] An electrical component, wherein the electrical component is disposed within the receiving cavity;

[0009] A top cover is provided over the opening of the receiving cavity to close the receiving cavity;

[0010] And a BMS, which is connected to the side of the upper cover near the receiving cavity and is electrically connected to the electrical components.

[0011] Optionally, the power distribution box further includes a reinforcing bracket connected to the side of the upper cover near the receiving cavity, and the BMS is fixedly connected to the reinforcing bracket.

[0012] Optionally, the reinforcing bracket includes at least two reinforcing beams, which are spaced apart on the upper cover, and the reinforcing beams are fixedly connected to the BMS.

[0013] Optionally, the reinforcing beam includes: a reinforcing beam body and a protrusion disposed on the reinforcing beam body, the reinforcing beam body being connected to the upper cover, and the protrusion being fixedly connected to the BMS.

[0014] Optionally, it also includes a first fastener, on which a nut is provided, and the BMS has a through hole corresponding to the position of the nut, and the first fastener passes through the through hole and is threadedly connected to the nut.

[0015] Optionally, the distribution box has a first direction, and at least two of the reinforcing beams include: a first reinforcing beam and / or a second reinforcing beam, wherein the extension direction of the first reinforcing beam is parallel to the first direction, and the extension direction of the second reinforcing beam is perpendicular to the first direction.

[0016] Optionally, it further includes a third reinforcing beam, the extension direction of which is set at an angle to the extension direction of the first reinforcing beam and / or the extension direction of the second reinforcing beam, and the third reinforcing beam is connected to the first reinforcing beam and / or the second reinforcing beam.

[0017] Optionally, the distribution box further includes a first connector, a second connector, and a bus assembly, and the enclosure includes a first sidewall and a second sidewall disposed opposite to each other;

[0018] The first sidewall is provided with a first insertion hole that penetrates the first sidewall, and the first connector is disposed in the first insertion hole. The first connector is used to electrically connect with a charging device or an electrical device.

[0019] The second sidewall is provided with a second insertion hole that penetrates the second sidewall, and the second connector is inserted into the second insertion hole. The second connector is used for electrical connection with the battery pack.

[0020] The busbar assembly is disposed within the receiving cavity and is connected to the first connector, the second connector, and the electrical device, respectively.

[0021] Optionally, the power distribution box further includes a connecting harness, one end of which is connected to the BMS, and the other end of which is connected to the electrical device, the first connector, and the second connector, respectively.

[0022] Secondly, this application also discloses a battery pack, the battery pack comprising: a power distribution box as described in any of the preceding claims.

[0023] Thirdly, this application also discloses an electrical device, which includes a battery pack as described above.

[0024] In this embodiment, by connecting the BMS to the side of the upper cover near the receiving cavity, when the electrical components need to be repaired, the BMS connected to the upper cover will move as the upper cover is opened, causing the electrical components in the receiving cavity to be exposed. In this way, the maintenance personnel do not need to disassemble the BMS and can directly repair the electrical components in the receiving cavity, thereby reducing the difficulty of repairing the electrical components.

[0025] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0026] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0027] Figure 1 This is a schematic diagram of the structure of a power distribution box provided in an embodiment of this application;

[0028] Figure 2 This is one of the structural schematic diagrams of the top cover, reinforcing bracket, and BMS of a power distribution box provided in an embodiment of this application;

[0029] Figure 3 This is a second schematic diagram of the structure of the top cover, reinforcing bracket and BMS of a power distribution box provided in an embodiment of this application;

[0030] Figure 4 This is the third schematic diagram of the structure of the top cover, reinforcing bracket and BMS of a power distribution box provided in the embodiments of this application;

[0031] Figure 5 This is an exploded view of a power distribution box provided in an embodiment of this application;

[0032] Figure 6 This is a left view of a power distribution box provided in an embodiment of this application;

[0033] Figure 7 This is a front view of a power distribution box provided in an embodiment of this application;

[0034] Figure 8 This is a front view of a power distribution box provided in an embodiment of this application from another perspective;

[0035] Figure 9 This is a top view of a power distribution box provided in an embodiment of this application.

[0036] Figure label:

[0037] 1. Housing; 11. Receiving cavity; 12. First side wall; 121. First insertion hole; 13. Second side wall; 131. Second insertion hole; 132. Third insertion hole; 14. Third side wall; 141. Fourth insertion hole; 2. Electrical components; 21. Fuse; 22. Relay; 23. Current sensor; 3. Top cover; 4. BMS; 41. Nut; 5. Reinforcing bracket; 51. Reinforcing beam; 511. Reinforcing beam body; 512. Protrusion; 513. First reinforcing beam; 514. Second reinforcing beam; 515. Third reinforcing beam; 52. Through hole; 6. First fastener; 71. First connector; 72. Second connector; 81. Busbar assembly; 82. Connecting harness; 9. Manual maintenance switch, X, first direction. Detailed Implementation

[0038] The embodiments of this utility model will now be described in detail. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.

[0039] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0040] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0041] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0042] This application provides a power distribution box, which will be described in detail below with reference to the accompanying drawings.

[0043] Reference Figures 1-9 This application provides a power distribution box, which includes: a housing 1, the housing 1 having a receiving cavity 11, one end of the receiving cavity 11 having an opening; an electrical component 2, the electrical component 2 being disposed inside the receiving cavity 11; a top cover 3, the top cover 3 being disposed over the opening of the receiving cavity 11 to close the receiving cavity 11; and a BMS4, the BMS4 being connected to the side of the top cover 3 near the receiving cavity 11 and being electrically connected to the electrical component 2.

[0044] In this embodiment, by connecting the BMS4 to the side of the upper cover 3 near the receiving cavity 11, when the electrical component 2 needs to be repaired, after the upper cover 3 is opened, the BMS4 connected to the upper cover 3 will move as the upper cover 3 is opened, causing the electrical component 2 in the receiving cavity 11 to be exposed. In this way, the maintenance personnel do not need to disassemble the BMS4 and can directly repair the electrical component 2 in the receiving cavity 11, thereby reducing the difficulty of repairing the electrical component 2.

[0045] Specifically, such as Figure 1 As shown, the housing 1 can serve as a support, providing a foundation for the installation and connection of electrical components 2, the top cover 3, the BMS4, and other components.

[0046] An installation bracket can be fixedly installed inside the receiving cavity 11. An installation plate is fixedly installed on the installation bracket, and the electrical component 2 is fixedly installed on the installation plate, so as to facilitate the placement of the electrical component 2 inside the receiving cavity 11 of the housing 1. The electrical component 2 can be used for electrical energy control, protection, or monitoring. The electrical component 2 can be specifically configured according to the actual application, and this application embodiment does not make specific limitations in this regard.

[0047] like Figure 1 As shown, the top cover 3 can be flipped to cover the opening of the receiving cavity 11, and can be detachably connected to the housing 1 by fasteners, snap-fit ​​connections or other means. The top cover 3 and the housing 1 form a sealed space, which can protect the electrical components 2 and BMS4 inside the housing 1.

[0048] BMS4 refers to the Battery Management System (BMS). BMS4 is electrically connected to the electrical component 2 and is mainly used for data monitoring, protection control, energy management, and low-voltage communication of the battery and power distribution system.

[0049] like Figure 1 As shown, the BMS4 can be fixedly connected to the side of the upper cover 3 near the receiving cavity 11 by means of adhesive bonding, fastener connection, etc. In this way, when the upper cover 3 is placed over the opening of the receiving cavity 11, the BMS4 is located above the electrical component 2. This allows for the efficient use of the longitudinal space along the height direction of the housing 1, reducing the volume of the power distribution box. This, on the one hand, improves the flexibility and convenience of the arrangement and position of the power distribution box in electrical equipment and battery packs, and on the other hand, reduces the volume of the power distribution box, thereby reducing material usage and lowering costs.

[0050] Optionally, the distribution box also includes a reinforcing bracket 5, which is connected to the side of the upper cover 3 near the receiving cavity 11, and the BMS4 is fixedly connected to the reinforcing bracket 5.

[0051] Specifically, such as Figure 1 As shown, the upper cover 3 can be a plate-like structure, and the reinforcing bracket 5 can be fixedly installed on the side of the upper cover 3 near the receiving cavity 11 by means of fastener connection, bonding or other methods.

[0052] BMS4 can be fixedly connected to the reinforcing bracket 5 by fasteners, adhesive or other means to fix BMS4 to the top cover 3.

[0053] In practical applications, by setting up the reinforcing bracket 5, the strength of the upper cover 3 can be improved while fixing the BMS4 to the upper cover 3, and the deformation resistance of the upper cover 3 can be improved, thereby extending the overall service life of the distribution box.

[0054] Optionally, the reinforcing bracket 5 includes at least two reinforcing beams 51, which are spaced apart on the upper cover 3 and are fixedly connected to the BMS4.

[0055] Specifically, such as Figures 2-4 As shown, the reinforcing bracket 5 includes at least two reinforcing beams 51. The reinforcing beams 51 can be fixed to the upper cover 3 by fasteners, adhesive bonding, or other means, and there is a certain interval between the at least two reinforcing beams 51. Exemplarily, there can be two, three, four, etc., and this application embodiment does not specifically limit this.

[0056] BMS4 can be a rectangular plate structure with four sides. At least two reinforcing beams 51 can be fixedly connected to at least two sides of BMS4 by means of fasteners, adhesive bonding, or other methods. The reinforcing beams 51 can be in the form of tubular beams, H-beams, etc.

[0057] In this embodiment, by setting at least two reinforcing beams 51, the strength of the reinforcing beams 51 can be further improved, thereby further extending the overall service life of the power distribution box. Furthermore, by fixing the BMS4 with at least two reinforcing beams 51, the connection reliability between the BMS4 and the upper cover 3 can be improved.

[0058] Optionally, the reinforcing beam 51 includes: a reinforcing beam body 511 and a protrusion 512 disposed on the reinforcing beam body 511, the reinforcing beam body 511 being connected to the upper cover 3, and the protrusion 512 being fixedly connected to the BMS4.

[0059] Specifically, the reinforcing beam 51 includes a protrusion 512 located in the middle, and reinforcing beam bodies 511 located on both sides of the protrusion 512, meaning the cross-section of the reinforcing beam 51 can be U-shaped. The reinforcing beam bodies 511 and the upper cover 3 can be fixedly connected by welding, bonding, or other means. The protrusion 512 can be fixedly connected to the BMS4 by fasteners, bonding, or other means.

[0060] In practical applications, by including a reinforcing beam body 511 and a protrusion 512 in the reinforcing beam 51, the structural strength of the reinforcing beam 51 itself can be improved, thereby increasing the strength of the upper cover 3. Simultaneously, by connecting the reinforcing beam body 511 of the reinforcing beam 51 to the upper cover 3, the connection area between the reinforcing beam 51 and the upper cover 3 can be effectively increased, thereby improving the connection's firmness. Furthermore, it facilitates the formation of a cavity between the protrusion 512 and the upper cover 3, thus enabling the fixed connection between the reinforcing beam 51 and the upper cover 3 using fasteners.

[0061] Optionally, it also includes a first fastener 6, a nut 41 is provided on the reinforcing bracket 5, and a through hole 52 is provided on the BMS4 corresponding to the position of the nut 41. The first fastener 6 passes through the through hole 52 and is threadedly connected to the nut 41.

[0062] Specifically, such as Figures 5-6 As shown, a nut 41 is embedded in the protrusion 512 of the reinforcing bracket 5. A through hole 52 is provided in the BMS4 corresponding to the position of the nut 41. The first fastener 6 can be a bolt, screw or other fastener. The first fastener 6 passes through the through hole 52 and is threaded to the nut 41. In practical applications, since the fastener connection is a relatively strong connection method, it can improve the connection reliability between the reinforcing bracket 5 and the BMS4.

[0063] Furthermore, there are multiple first fasteners 6 and multiple nuts 41, which are spaced apart on the reinforcing bracket 5. There are multiple through holes 52, which are spaced apart on the BMS4. A first fastener 6 passes through a through hole 52 and is threadedly connected to a nut 41, which can further improve the connection reliability between the reinforcing bracket 5 and the BMS4.

[0064] Optionally, the distribution box has a first direction X, and at least two reinforcing beams 51 include: a first reinforcing beam 513 and / or a second reinforcing beam 514, wherein the extension direction of the first reinforcing beam 513 is parallel to the first direction X, and the extension direction of the second reinforcing beam 514 is perpendicular to the first direction X.

[0065] like Figure 2 and Figure 3 As shown, the first direction X is the X-axis direction shown in the figure, specifically referring to the length direction of the distribution box. At least two reinforcing beams 51 may include a first reinforcing beam 513, such as... Figure 2 As shown, the extension direction of the first reinforcing beam 513 is parallel to the first direction X. There can be at least two first reinforcing beams 513, and the two first reinforcing beams 513 are arranged in parallel.

[0066] At least two reinforcing beams 51 may also include a second reinforcing beam 514, such as Figure 3 As shown, the extension direction of the second reinforcing beam 514 is perpendicular to the first direction X. There can also be at least two second reinforcing beams 514, which are arranged in parallel.

[0067] Among the multiple reinforcing beams 51, it is possible to... Figure 2 The diagram shows only at least two first reinforcing beams 513, but it can also be as follows: Figure 3 The diagram shows at least two second reinforcing beams 514, and may also include, for example... Figure 5 As shown, it includes both the first reinforcing beam 513 and the second reinforcing beam 514. This embodiment does not specifically limit the reinforcement beam 51 in the upper cover 3, thus improving the flexibility of the reinforcement beam 51 in the arrangement.

[0068] Optionally, it also includes a third reinforcing beam 515, the extension direction of the third reinforcing beam 515 being set at an angle to the extension direction of the first reinforcing beam 513 and / or the extension direction of the second reinforcing beam 514, and the third reinforcing beam 515 being connected to the first reinforcing beam 513 and / or the second reinforcing beam 514.

[0069] Specifically, the reinforcing beam 51 further includes a third reinforcing beam 515, the extension direction of which is set at an obtuse angle to the extension direction of the first reinforcing beam 513 and / or at an acute angle to the extension direction of the second reinforcing beam 514, such that the third reinforcing beam 515 is inclined relative to the first reinforcing beam 513 or the second reinforcing beam 514 on the upper cover 3. Alternatively, it may include only the first reinforcing beam 513 and the third reinforcing beam 515, or only the second reinforcing beam 514 and the third reinforcing beam 515, or only... Figure 5 The embodiment shown includes a first reinforcing beam 513, a second reinforcing beam 514, and a third reinforcing beam 515, but this embodiment does not specifically limit these components.

[0070] In this embodiment, by setting a third reinforcing beam 515, which is inclined relative to the first reinforcing beam 513 and / or the second reinforcing beam 514 and connected to each other, the strength of the reinforcing beam 51 can be further improved, thereby further extending the overall service life of the distribution box.

[0071] In some embodiments, such as Figure 4 As shown, among the multiple reinforcing beams 51, there may also be only four third reinforcing beams 515. The four third reinforcing beams 515 are respectively set at the four vertices of BMS4, which can further improve the flexibility of the setting method of reinforcing beams 51 on the upper cover 3.

[0072] Optionally, the power distribution box further includes a first connector 71, a second connector 72, and a busbar assembly 81. The housing 1 includes a first sidewall 12 and a second sidewall 13 disposed opposite to each other. A first insertion hole 121 is provided on the first sidewall 12, and the first connector 71 is disposed in the first insertion hole 121 for electrical connection with a charging device or electrical equipment. A second insertion hole 131 is provided on the second sidewall 13, and the second connector 72 is disposed in the second insertion hole 131 for electrical connection with a battery pack. The busbar assembly 81 is disposed in the receiving cavity 11 and is connected to the first connector 71, the second connector 72, and the electrical device 2.

[0073] Specifically, such as Figure 5 As shown, the housing 1 includes a first sidewall 12 and a second sidewall 13 disposed opposite to each other along the width direction of the housing 1. The first sidewall 12 is provided with a plurality of first insertion holes 121 spaced apart along a first direction X, such as... Figure 7As shown, there are multiple first connectors 71. One first connector 71 is inserted into a first insertion hole 121, and the first connector 71 is connected to the first side wall 12 by a second fastener. Among the multiple first connectors 71, some of the first connectors 71 serve as the charging interface of the power distribution box for connecting to the charging equipment, and other first connectors 71 serve as the discharging interface for connecting to the electrical equipment.

[0074] like Figure 5 As shown, a plurality of second insertion holes 131 are provided at intervals along the first direction X on the second sidewall 13, such as... Figure 8 As shown, there are multiple second connectors 72. The second connectors 72 are inserted into the second insertion hole 131, and the second connectors 72 can also be fixedly connected to the second side wall 13 by the second fastener. The second connectors 72 are used to connect to the battery pack.

[0075] The bus assembly 81 includes multiple busbars connected between multiple first connectors 71, multiple second connectors 72 and electrical components 2 to achieve electrical connection between the first connectors 71, second connectors 72 and electrical components 2.

[0076] For example, the electrical component 2 may include multiple fuses 21, multiple relays 22, and multiple current sensors 23. The fuses 21 are located between the first connector 71 and the second connector 72 and are used for short-circuit protection. The relays 22 are located between the first connector 71 and the second connector 72 and are used to control the on / off state of the circuit. The current sensors 23 are also located between the first connector 71 and the second connector 72 and are used to detect the current in the circuit. The relays 22 may include a positive charging relay, a negative charging relay, and a discharge relay.

[0077] In this embodiment, by setting the first connector 71 on the first side wall 12, setting the second connector 72 on the second side wall 13, and setting the bus assembly 81 in the receiving cavity 11, the installation space of the box 1 can be reasonably utilized, and the volume of the power distribution box can be reduced.

[0078] Optionally, the distribution box also includes a connecting harness 82, one end of which is connected to the BMS4, and the other end of which is connected to the electrical component 2, the first connector 71, and the second connector 72, respectively.

[0079] Specifically, it also includes a connecting harness 82, the other end of which is provided with a connecting terminal. The BMS4 is provided with a corresponding connecting interface. The connecting terminal and the connecting interface are plugged in to realize the electrical connection between the connecting harness 82 and the BMS4. The connecting harness 82 includes multiple sub-harnesses, which are respectively connected between the electrical device 2, multiple first connectors 71 and multiple second connectors 72. In this way, by setting the connecting harness 82, the electrical connection between the electrical device 2, the first connectors 71, the second connectors 72 and the BMS4 can be easily realized.

[0080] In some alternative embodiments, multiple sub-harnesses can be integrated together by cable ties, buckles or clips to form a connecting harness 82 and fixed to the top cover 3.

[0081] In some embodiments, such as Figure 5 As shown, the second sidewall 13 is also provided with a plurality of third insertion holes 132, such as Figure 8 As shown, the power distribution box also includes multiple third connectors. The third connectors are inserted into the third plug hole 132, and the third connectors can also be connected to the second side wall 13 through the second fastener. The third connectors are electrically connected to the BMS4 through the connecting wire harness 82. The third connectors can be used as connection interfaces for heaters, water coolers, vehicles, etc.

[0082] In some embodiments, such as Figure 6 As shown, the enclosure 1 also includes a third side wall 14, on which a plurality of fourth plug-in holes 141 are provided. The distribution box also includes a plurality of manual maintenance switches 9, which are installed in the fourth plug-in holes 141 and are electrically connected to the circuit between the first connector 71 and the second connector 72. The manual maintenance switches 9 are mainly used to quickly disconnect the circuit during maintenance, repair or emergency to ensure the safety of personnel operation.

[0083] In summary, the power distribution box provided in this application embodiment has at least the following advantages:

[0084] In this embodiment, by connecting the BMS4 to the side of the upper cover 3 near the receiving cavity 11, when the electrical component 2 needs to be repaired, after the upper cover 3 is opened, the BMS4 connected to the upper cover 3 will move as the upper cover 3 is opened, causing the electrical component 2 in the receiving cavity 11 to be exposed. In this way, the maintenance personnel do not need to disassemble the BMS4 and can directly repair the electrical component 2 in the receiving cavity 11, thereby reducing the difficulty of repairing the electrical component 2.

[0085] This application also provides a battery pack, which includes a power distribution box as described in any of the above embodiments.

[0086] It should be noted that in this embodiment, the structure of the power distribution box is the same as that of the power distribution box described in any of the above embodiments, and its beneficial effects are similar, so it will not be described in detail here.

[0087] This application also provides an electrical device, which includes a battery pack as described in the above embodiments.

[0088] Electrical equipment can be used for vehicles.

[0089] It should be noted that in this embodiment, the structure of the battery pack is the same as that of the battery pack described in any of the above embodiments, and its beneficial effects are similar, so it will not be described in detail here.

[0090] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0091] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A power distribution box, characterized in that, The distribution box includes: The box (1) is provided with a receiving cavity (11), and one end of the receiving cavity (11) has an opening; Electrical component (2), wherein the electrical component (2) is disposed within the receiving cavity (11); The upper cover (3) is placed over the opening of the receiving cavity (11) to close the receiving cavity (11); And BMS (4), which is connected to the side of the upper cover (3) near the receiving cavity (11) and is electrically connected to the electrical device (2).

2. The distribution box according to claim 1, characterized in that, The power distribution box also includes a reinforcing bracket (5), which is connected to the side of the upper cover (3) near the receiving cavity (11), and the BMS (4) is fixedly connected to the reinforcing bracket (5).

3. The distribution box according to claim 2, characterized in that, The reinforcing bracket (5) includes at least two reinforcing beams (51), which are spaced apart on the upper cover (3) and are fixedly connected to the BMS (4).

4. The distribution box according to claim 3, characterized in that, The reinforcing beam (51) includes a reinforcing beam body (511) and a protrusion (512) disposed on the reinforcing beam body (511). The reinforcing beam body (511) is connected to the upper cover (3), and the protrusion (512) is fixedly connected to the BMS (4).

5. The distribution box according to any one of claims 2-4, characterized in that, It also includes a first fastener (6), a nut (41) is provided on the reinforcing bracket (5), and the BMS (4) is provided with a through hole (52) corresponding to the position of the nut (41). The first fastener (6) passes through the through hole (52) and is threadedly connected to the nut (41).

6. The distribution box according to claim 3, characterized in that, The distribution box has a first direction (X), and at least two of the reinforcing beams (51) include: a first reinforcing beam (513) and / or a second reinforcing beam (514), wherein the extension direction of the first reinforcing beam (513) is parallel to the first direction (X), and the extension direction of the second reinforcing beam (514) is perpendicular to the first direction (X).

7. The distribution box according to claim 6, characterized in that, It also includes a third reinforcing beam (515), the extension direction of which is set at an angle to the extension direction of the first reinforcing beam (513) and / or the extension direction of the second reinforcing beam (514), and the third reinforcing beam (515) is connected to the first reinforcing beam (513) and / or the second reinforcing beam (514).

8. The distribution box according to claim 1, characterized in that, The power distribution box also includes a first connector (71), a second connector (72), and a bus assembly (81). The enclosure (1) includes a first side wall (12) and a second side wall (13) disposed opposite to each other. The first sidewall (12) is provided with a first insertion hole (121) that penetrates the first sidewall (12), and the first connector (71) is inserted into the first insertion hole (121). The first connector (71) is used to electrically connect with a charging device or an electrical device. The second sidewall (13) is provided with a second insertion hole (131) that penetrates the second sidewall (13), and the second connector (72) is inserted into the second insertion hole (131). The second connector (72) is used to electrically connect to the battery pack. The busbar assembly (81) is disposed in the receiving cavity (11) and is connected to the first connector (71), the second connector (72) and the electrical device (2) respectively.

9. The distribution box according to claim 8, characterized in that, The power distribution box also includes a connecting harness (82), one end of which is connected to the BMS (4), and the other end of which is connected to the electrical device (2), the first connector (71), and the second connector (72), respectively.

10. A battery pack, characterized in that, The battery pack includes: a power distribution box as described in any one of claims 1-9.

11. An electrical appliance, characterized in that, The electrical equipment includes the battery pack as described in claim 10.

Images