Distribution box assembly and battery pack

Abstract

The utility model discloses a distribution box assembly and a battery pack. The distribution box assembly comprises a base, a first connecting piece, a second connecting piece, a first output copper bar and a second output copper bar, the base extends in the first direction, a first containing cavity which is open towards one side is formed in the base, and the first containing cavity is suitable for containing electrical components; the first connecting piece and the second connecting piece are respectively used for connecting the electric appliance element with the positive electrode and the negative electrode of the battery, and are respectively arranged at two ends of the base in the first direction; and the first output copper bar and the second output copper bar are respectively connected with the electric appliance element, are respectively arranged on the same side of the base in the second direction and are positioned between the first connecting piece and the second connecting piece. The two ends of the distribution box assembly are connected with the positive electrode and the negative electrode of the battery, the output structure is arranged on the same side, the compactness of the distribution box assembly is improved, and the distribution box assembly is convenient to assemble.

Description

Technical Field

[0001] The utility model relates to the field of batteries, in particular to a distribution box component and a battery pack. Background Art

[0002] With the continuous development of new energy technology, new energy products are becoming more and more popular, and their market share is increasing. As an important component of the electronic control of new energy products, the battery system distribution box has also become a hot spot for research and development. At present, most battery system distribution boxes are composed of an upper cover, a lower cover, a copper busbar, and corresponding functional electrical components. Its own structure and the structure of the positive and negative electrode connection ports and output port positions will affect the performance and assembly of the battery pack. In the prior art, the positive and negative electrode interfaces of the battery distribution box are usually set on the same side of the distribution box, which is far from the main positive and negative electrode connection lines of the battery pack, making it inconvenient to arrange. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide a distribution box assembly. According to the distribution box assembly of the utility model, a first accommodating cavity is defined in the base for assembling electrical components. At the same time, the base is provided with a first connector and a second connector connected to the positive and negative electrodes of the battery at both ends in the first direction, respectively, and a first output copper busbar and a second output copper busbar connected to the output structure are provided on the same side in the second direction, thereby improving the compactness of the distribution box assembly structure and facilitating the arrangement and assembly of the circuit and the distribution box assembly itself.

[0004] The utility model also provides a battery pack including the above-mentioned power distribution box assembly.

[0005] According to the utility model, the distribution box assembly includes a base, a first connecting piece, a second connecting piece, a first output copper bar and a second output copper bar. The base extends in a first direction and a first accommodating cavity open to one side is formed in the base, and the first accommodating cavity is suitable for accommodating electrical components; the first connecting piece and the second connecting piece respectively connect the electrical components to the positive and negative electrodes of the battery, and the first connecting piece and the second connecting piece are respectively arranged at the two ends of the base in the first direction; the first output copper bar and the second output copper bar are respectively connected to the electrical components, and the first output copper bar and the second output copper bar are respectively arranged on the same side of the base in the second direction and are located between the first connecting piece and the second connecting piece.

[0006] According to the utility model, a base is provided as the basis of the distribution box assembly, and a first accommodating cavity extending in a first direction and open toward one side is formed in the base, and the first accommodating cavity can accommodate electrical components, which is convenient for assembling the electrical components. A first connector and a second connector are provided on the base, and the first connector electrically connects the electrical components to the positive electrode of the battery, and the second connector electrically connects the electrical components to the negative electrode of the battery. The provision of the first connector and the second connector realizes the normal use of the electrical components. The first connector and the second connector are respectively provided at the two ends of the base in the first direction, that is, the two ends of the distribution box assembly are respectively connected to the positive electrode and the negative electrode of the battery. Compared with the scheme in the prior art that the positive and negative electrode connection ports of the distribution box are provided on the same side, the first connector and the second connector are respectively provided at the two ends of the distribution box, which facilitates the interface of the distribution box to be closer to the positive and negative electrodes of the battery, and can reduce the layout length of the line between the distribution box and the positive and negative electrodes of the battery, reduce the complexity of the electrical connection line, and make the layout of the distribution box assembly more convenient.

[0007] In addition, the distribution box assembly is also provided with a first output copper bar and a second output copper bar, which are respectively connected to the output positive pole and the output negative pole of the electrical component. The provision of the first output copper bar and the second output copper bar enables the output end of the electrical component to be connected with other functional components, which is convenient for the output work of the electrical component in the first accommodating cavity. During assembly, the first output copper bar and the second output copper bar are respectively provided on the same side of the base in the second direction and are located between the first connector and the second connector. The first output copper bar and the second output copper bar provided on the same side can reduce the space occupancy rate of the distribution box in the second direction, which is convenient for the assembly of the distribution box assembly. At the same time, the first output copper bar and the second output copper bar are provided on the same side and between the first connector and the second connector, which can also enable the output structure of the overall distribution box to be connected to other external structures on the same side, and the layout of the circuit is more compact.

[0008] According to an embodiment of the utility model, a first mounting groove and a second mounting groove adjacent to each other and opening in the second direction are formed on the base, and the other end of the first output copper bar and the other end of the second output copper bar are respectively accommodated in the first mounting groove and the second mounting groove.

[0009] According to one embodiment of the utility model, the distribution box assembly also includes an upper cover, which can be selectively connected to the base to close the first accommodating cavity; wherein an avoidance gap is formed on the upper cover, and the avoidance gap is constructed to be a plurality of gaps corresponding one to one with the first mounting groove, the second mounting groove, the first connecting member and the second connecting member.

[0010] According to an embodiment of the utility model, it also includes a protective cover, which is constructed to be a plurality of protective covers corresponding to the avoidance gaps one by one and respectively covering the first installation groove, the second installation groove, the first connecting member and the second connecting member.

[0011] According to an embodiment of the utility model, a first matching portion is formed in the avoidance gap, and a second matching portion suitable for slidingly matching and / or snapping with the first matching portion is formed on the protective cover.

[0012] According to one embodiment of the utility model, the first matching portion is configured as a slide groove formed on the inner wall of the avoidance notch and extending in the opening direction of the first accommodating cavity, and the second matching portion is configured as a first clamping block formed on one side of the protective cover, and the first clamping block is suitable for cooperating with the slide groove.

[0013] According to an embodiment of the utility model, the slide groove is constructed to be a plurality of slide grooves spaced apart in the first direction or the second direction, a hook is provided between two adjacent slide grooves, and a second block cooperating with the hook is provided on the protective cover.

[0014] According to an embodiment of the utility model, a buckle extending toward the base is formed on the upper cover, and the buckle structure is composed of a plurality of buckles arranged at intervals in the circumferential direction of the upper cover, and the base is formed with snap-fitting protrusions corresponding to the buckles one by one.

[0015] According to one embodiment of the utility model, the electrical components include a main fuse, a main relay, a pre-charging resistor and a pre-charging relay. The main fuse and the main relay are arranged on one side of the first accommodating cavity in the second direction and are arranged at intervals on one side in the first direction; the pre-charging resistor and the pre-charging relay are arranged on the other side of the first accommodating cavity in the second direction and are arranged at intervals on one side in the first direction.

[0016] According to one embodiment of the utility model, the electrical component also includes an auxiliary relay, a shunt, a heating fuse and a heating relay, and the shunt and the heating fuse are arranged one by one in the second direction of the first accommodating cavity; the heating relay and the shunt are arranged overlappingly in the third direction of the first accommodating cavity.

[0017] According to an embodiment of the present utility model, the first output copper bar extends in a first direction, one end of the first output copper bar is connected to the main relay, and the other end of the first output copper bar is received in the first installation groove.

[0018] According to one embodiment of the utility model, the second output copper busbar includes a first plate, a second plate and a third plate, the first plate is connected to the auxiliary relay; the second plate is arranged in the second mounting groove; the third plate extends in the third direction of the first accommodating cavity and is respectively connected to the first plate and the second plate.

[0019] The battery pack according to the present utility model is briefly described below.

[0020] According to the utility model, a second accommodating cavity and a third accommodating cavity are formed in the battery pack at intervals. The second accommodating cavity is suitable for accommodating battery cells, and the third accommodating cavity can accommodate the distribution box assembly in the above-mentioned embodiment. Since the battery pack according to the utility model is provided with the distribution box assembly in the above-mentioned embodiment, when the distribution box assembly is assembled with the battery pack, the first connector and the second connector at both ends of the distribution box assembly arranged in the first direction are respectively connected to the main positive and main negative of the battery pack battery cells, which is convenient for the arrangement of the wiring harness inside the battery pack. The compactness of the layout of the distribution box assembly itself can reduce the space occupied by the distribution box assembly, thereby increasing the space utilization of the battery cells and improving the energy density of the battery pack.

[0021] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0023] Figure 1 is a cross-sectional view of a distribution box assembly according to an embodiment of the utility model;

[0024] Figure 2 is a top view of a distribution box assembly according to an embodiment of the utility model;

[0025] Figure 3 This is a front view of a power distribution box assembly according to an embodiment of the utility model;

[0026] Figure 4 This is a simplified structural diagram of the avoidance gap according to an embodiment of the utility model;

[0027] Figure 5 It is a structural diagram of a power distribution box assembly according to an embodiment of the utility model;

[0028] Figure 6 It is an assembly drawing of a distribution box assembly according to an embodiment of the utility model.

[0029] Reference numerals:

[0030] Power distribution box assembly 1;

[0031] Base 11, clamping protrusion 111;

[0032] A first connecting member 121 and a second connecting member 122;

[0033] A first output copper bar 131, a second output copper bar 132, a first plate 1321, a second plate 1322, and a third plate 1323;

[0034] Upper cover 14, avoidance notch 141, slide groove 1411, hook 1412, buckle 142;

[0035] A first mounting groove 151 and a second mounting groove 152;

[0036] Protective cover 16, first clamping block 161, second clamping block 162;

[0037] Main fuse 171, main relay 172, pre-charge resistor 173, pre-charge relay 174, auxiliary relay 175, shunt 176, heating fuse 177, heating relay 178;

[0038] Battery pack 101 , second accommodating chamber 102 , third accommodating chamber 103 , and vibration-damping pad 104 . DETAILED DESCRIPTION

[0039] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0040] With the continuous development of new energy technology, new energy products are becoming more and more popular, and their market share is increasing. As an important component of the electronic control of new energy products, the battery system distribution box has also become a hot spot for research and development. At present, most battery system distribution boxes are composed of an upper cover, a lower cover, a copper busbar, and corresponding functional electrical components. Its own structure and the structure of the positive and negative electrode connection ports and output port positions will affect the performance and assembly of the battery pack. In the prior art, the positive and negative electrode interfaces of the battery distribution box are usually set on the same side of the distribution box, which is far from the main positive and negative electrode connection lines of the battery pack, making it inconvenient to arrange.

[0041] Reference below Figure 1-Figure 6 A power distribution box assembly according to an embodiment of the utility model is described.

[0042] According to the utility model, the distribution box assembly 1 includes a base 11, a first connecting member 121, a second connecting member 122, a first output copper bar 131 and a second output copper bar 132. The base 11 extends in a first direction and a first accommodating cavity open to one side is formed in the base 11, and the first accommodating cavity is suitable for accommodating electrical components; the first connecting member 121 and the second connecting member 122 respectively connect the electrical components to the positive and negative electrodes of the battery, and the first connecting member 121 and the second connecting member 122 are respectively arranged at the two ends of the base 11 in the first direction; the first output copper bar 131 and the second output copper bar 132 are respectively connected to the electrical components, and the first output copper bar 131 and the second output copper bar 132 are respectively arranged on the same side of the base 11 in the second direction and are located between the first connecting member 121 and the second connecting member 122.

[0043] According to the distribution box assembly 1 of the utility model, a base 11 is provided as the basis of the distribution box assembly 1. A first accommodating cavity extending in a first direction and open toward one side is formed in the base 11. The first accommodating cavity can accommodate electrical components to facilitate the assembly of the electrical components. A first connector 121 and a second connector 122 are provided on the base 11. The first connector 121 electrically connects the electrical components to the positive electrode of the battery, and the second connector 122 electrically connects the electrical components to the negative electrode of the battery. The provision of the first connector 121 and the second connector 122 realizes the normal use of the electrical components. The first connector 121 and the second connector 122 are respectively arranged at the two ends of the base 11 in the first direction, that is, the two ends of the distribution box assembly 1 are respectively connected to the positive and negative electrodes of the battery. Compared with the solution in the prior art that the positive and negative electrode connection ports of the distribution box are arranged on the same side, the first connector 121 and the second connector 122 are respectively arranged at both ends of the distribution box to facilitate the interface of the distribution box to be closer to the positive and negative electrodes of the battery, which can reduce the layout length of the line between the distribution box and the positive and negative electrodes of the battery, reduce the complexity of the electrical connection line, and make the layout of the distribution box assembly 1 more convenient.

[0044] In addition, the distribution box assembly 1 is also provided with a first output copper bar 131 and a second output copper bar 132, which are respectively connected to the output positive pole and the output negative pole of the electrical component. The provision of the first output copper bar 131 and the second output copper bar 132 enables the output end of the electrical component to be connected with other functional components, which is convenient for the output work of the electrical component in the first accommodating cavity. During assembly, the first output copper bar 131 and the second output copper bar 132 are respectively provided on the same side of the base 11 in the second direction and are located between the first connector 121 and the second connector 122. The first output copper bar 131 and the second output copper bar 132 provided on the same side can reduce the space occupancy rate of the distribution box in the second direction, which is convenient for the assembly of the distribution box assembly 1. At the same time, the first output copper bar 131 and the second output copper bar 132 are provided on the same side and between the first connector 121 and the second connector 122, which can also enable the output structure of the overall distribution box to be connected with other external structures on the same side, and the layout of the circuit is more compact.

[0045] According to an embodiment of the utility model, a first mounting groove 151 and a second mounting groove 152 are formed on the base 11, which are adjacent to each other and open toward the second direction, and the other end of the first output copper bar 131 and the other end of the second output copper bar 132 are respectively received in the first mounting groove 151 and the second mounting groove 152. Since the first output copper bar 131 and the second output copper bar 132 are arranged on the base 11, the structure of the base 11 will affect the assembly of the first output copper bar 131 and the second output copper bar 132. Specifically, the base 11 is provided with a first mounting groove 151 and a second mounting groove 152 which are open toward the second direction. The first mounting groove 151 and the second mounting groove 152 can respectively accommodate at least part of the first output copper bar 131 and the second output copper bar 132. It can be understood that the free end of the first output copper bar 131 is placed in the first mounting groove 151, and the free end of the second output copper bar 132 is placed in the second mounting groove 152. The setting of the first mounting groove 151 and the second mounting groove 152 provides assembly space for the first output copper bar 131 and the second output copper bar 132, thereby improving the assembly stability of the first output copper bar 131 and the second output copper bar 132. At the same time, the first mounting groove 151 and the second mounting groove 152 are arranged adjacent to each other, so that the first output copper bar 131 and the second output copper bar 132 will also be adjacent to each other after assembly. The adjacent first output copper bar 131 and the second output copper bar 132 can improve the compactness of the output structure of the distribution box assembly 1.

[0046] According to one embodiment of the utility model, the distribution box assembly 1 also includes an upper cover 14, which can be selectively connected to the base 11 to close the first accommodating cavity; wherein an avoidance gap 141 is formed on the upper cover 14, and the avoidance gap 141 is constructed to correspond one to one with the first installation groove 151, the second installation groove 152, the first connecting member 121 and the second connecting member 122.

[0047] Since the first accommodating cavity is open, the structure of the distribution box assembly 1 will affect the assembly of the electrical components. Specifically, the distribution box assembly 1 is also provided with an upper cover 14, which can be selectively connected to the base 11 so as to close the first accommodating cavity after the electrical components are assembled into the first accommodating cavity, thereby preventing the electrical components from falling off from the first accommodating cavity and improving the stability of the assembly of the electrical components. The upper cover 14 is provided with an avoidance notch 141, and the avoidance notch 141 is configured as a plurality of notches. During assembly, the avoidance notch 141 can avoid the first mounting groove 151 and the second mounting groove 152 as well as the first connector 121 and the second connector 122. The provision of the avoidance notch 141 avoids interference between the upper cover 14 and the base 11 or the electrical components and the connection structure of the positive and negative electrodes of the battery during assembly, thereby ensuring the stability of the assembly of the upper cover 14 and the base 11.

[0048] According to an embodiment of the utility model, it also includes a protective cover 16, which is constructed to correspond to the avoidance gaps 141 in a one-to-one manner and respectively cover the first installation groove 151, the second installation groove 152, the first connector 121 and the second connector 122. Specifically, the distribution box assembly 1 is also provided with a protective cover 16 at each avoidance gap 141, and the protective cover 16 can cover the first installation groove 151, the second installation groove 152, the first connector 121 and the second connector 122 when the upper cover 14 is assembled, so as to avoid the first output copper bar 131, the second output copper bar 132, the first connector 121 and the second connector 122 from being exposed, thereby improving the safety of the first output copper bar 131, the second output copper bar 132, the first connector 121 and the second connector 122.

[0049] According to an embodiment of the utility model, a first matching portion is formed in the avoidance notch 141, and a second matching portion suitable for slidingly matching and / or snapping with the first matching portion is formed on the protective cover 16. Since the protective cover 16 is arranged at the position of the avoidance notch 141, the connection relationship between the protective cover 16 and the avoidance notch 141 will affect the assembly of the protective cover 16. Specifically, a first matching portion is formed in the avoidance notch 141, and a second matching portion is formed on the protective cover 16. When the protective cover 16 is assembled, the first matching portion and the second matching portion can snap into each other after sliding matching. The structure of the first matching portion and the second matching portion reduces the difficulty of assembling the protective cover 16 and the upper cover 14, and at the same time, improves the stability of the protective cover 16 and the upper cover 14 after assembly.

[0050] According to one embodiment of the utility model, the first matching portion is configured as a slide groove 1411 formed on the inner wall of the avoidance gap 141 and extending in the opening direction of the first accommodating cavity, and the second matching portion is configured as a block formed on one side of the protective cover 16, and the block is suitable for matching with the slide groove 1411.

[0051] Since the protective cover 16 and the upper cover 14 are connected by the cooperation of the first matching part and the second matching part, the structure of the first matching part and the second matching part will affect the connection between the protective cover 16 and the upper cover 14. Specifically, the first matching part is configured as a slide groove 1411 formed on the inner wall of the avoidance notch 141 and extending in the opening direction of the first accommodating cavity, and the second matching part is configured as a first clamping block 161 formed on the protective cover 16. During assembly, the first clamping block 161 can slide in the slide groove 1411, that is, the protective cover 16 can be slidably assembled into the avoidance notch 141. The provision of the slide groove 1411 and the first clamping block 161 reduces the difficulty of assembling the protective cover 16 and the upper cover 14, and realizes the adjustability of the connection between the protective cover 16 and the upper cover 14, so that the protective cover 16 can be adjusted to the corresponding position according to the covered structure, so that the protective cover 16 can completely cover the corresponding structure.

[0052] According to an embodiment of the utility model, the slide groove 1411 is configured as a plurality of slide grooves 1411 spaced apart in the first direction or the second direction, a hook 1412 is provided between two adjacent slide grooves 1411, and a block that cooperates with the hook 1412 is provided on the protective cover 16. Since the protective cover 16 and the upper cover 14 are slidably matched, the configuration of the slide groove 1411 will affect the sliding of the protective cover 16 in the avoidance gap 141. Specifically, the slide groove 1411 is configured as a plurality of slide grooves 1411 spaced apart in the first direction or the second direction, and similarly, the first block 161 corresponds to the slide groove 1411 one by one, and two adjacent slide grooves 1411 are suitable for cooperating with the two sliders on the protective cover 16 to facilitate the relative sliding between the protective cover 16 and the upper cover 14. A hook 1412 is provided between two adjacent slide grooves 1411, and a second block 162 is also provided on the protective cover 16. When the first block 161 cooperates with the slide groove 1411, the second block 162 can be selectively engaged with the hook 1412 to limit the relative movement between the protective cover 16 and the upper cover 14, so that the protective cover 16 slides out or falls off from the avoidance gap 141. The provision of the second block 162 and the hook 1412 improves the stability of the assembly of the protective cover 16 and the upper cover 14.

[0053] According to an embodiment of the utility model, a buckle 142 extending toward the base 11 is formed on the upper cover 14, and the buckle 142 is configured to be arranged in a plurality of intervals in the circumferential direction of the upper cover 14, and the base 11 is formed with a buckle protrusion 111 corresponding to the buckle 142. Since the upper cover 14 is connected to the base 11, the structure of the upper cover 14 and the base 11 will affect the connection relationship between the upper cover 14 and the base 11. Specifically, the upper cover 14 is provided with a buckle 142 extending toward the base 11, and the base 11 is formed with a snap-fitting protrusion 111 that cooperates with the buckle 142. The buckle 142 and the snap-fitting protrusion 111 are respectively constructed as a plurality of one-to-one corresponding ones. When the upper cover 14 cooperates with the base 11, each buckle 142 cooperates with the corresponding snap-fitting protrusion 111 to facilitate the connection between the upper cover 14 and the base 11. The structure of the buckle 142 and the snap-fitting protrusion 111 improves the stability of the connection between the upper cover 14 and the base 11.

[0054] According to an embodiment of the utility model, the electrical components include a main fuse 171, a main relay 172, a pre-charge resistor 173 and a pre-charge relay 174, the main fuse 171 and the main relay 172 are arranged on one side of the first accommodating cavity in the second direction and are arranged at intervals on one side in the first direction; the pre-charge resistor 173 and the pre-charge relay 174 are arranged on the other side of the first accommodating cavity in the second direction and are arranged at intervals on one side in the first direction. Specifically, the electrical components in the first accommodating cavity include a main fuse 171, a main relay 172, a pre-charge resistor 173 and a pre-charge relay 174, wherein one end of the main fuse 171 is connected to the positive electrode of the battery, the other end of the main fuse 171 is connected to one end of the main relay 172, and the other end of the main relay 172 is connected to the first output copper bus 131; one end of the pre-charge resistor 173 is connected to the other end of the main fuse 171, and one end of the pre-charge relay 174 is connected to the other end of the pre-charge resistor 173. The arrangement of the main fuse 171, the main relay 172, the pre-charge resistor 173 and the pre-charge relay 174 facilitates the connection between the various electrical components in the battery pack 101, and can improve the safety of the battery pack 101. It is worth noting that the main fuse 171 and the main relay 172 are arranged on one side of the first accommodating cavity in the second direction and are arranged at intervals on one side in the first direction; the pre-charge resistor 173 and the pre-charge relay 174 are arranged on the other side of the first accommodating cavity in the second direction and are arranged at intervals on one side in the first direction. It can be understood that a branch circuit is formed between the main fuse 171 and the main relay 172, and another branch circuit is formed between the pre-charge resistor 173 and the pre-charge relay 174. The two branch circuits are arranged on both sides of the first accommodating cavity in the second direction. The arrangement of the main fuse 171, the main relay 172, the pre-charge resistor 173 and the pre-charge relay 174 improves the compactness of the assembly of electrical components, can reduce the space occupancy rate of electrical components, and facilitates the assembly of the distribution box assembly 1.

[0055] According to an embodiment of the utility model, the electrical component further includes an auxiliary relay 175, a shunt 176, a heating fuse 177 and a heating relay 178, wherein the shunt 176 and the heating fuse 177 are sequentially arranged at intervals in the second direction of the first accommodating chamber; the heating relay 178 overlaps with the shunt 176 in the third direction of the first accommodating chamber. Specifically, the electrical component further includes an auxiliary relay 175, a shunt 176, a heating fuse 177 and a heating relay 178, wherein the shunt 176 and the auxiliary relay 175 form a branch circuit and are respectively connected to the negative pole of the battery, and the heating fuse 177 and the heating relay 178 form a branch circuit and are connected to the other end of the pre-charge relay 174. During assembly, the shunt 176 and the heating fuse 177 are sequentially arranged at intervals in the second direction of the first accommodating chamber; the heating relay 178 overlaps with the shunt 176 in the third direction of the first accommodating chamber, and the auxiliary relay 175 is spaced apart from the shunt 176 in the first direction. The layout of the auxiliary relay 175 , the shunt 176 , the heating fuse 177 and the heating relay 178 improves the compactness of the electrical component assembly, can reduce the space occupancy rate of the electrical components, and facilitates the assembly of the distribution box assembly 1 .

[0056] According to an embodiment of the utility model, the first output copper bar 131 extends in the first direction, one end of the first output copper bar 131 is connected to the main relay 172, and the other end of the first output copper bar 131 is accommodated in the first mounting groove 151. Since the first output copper bar 131 is a structure arranged in the first accommodating cavity and used to connect the electrical components, the structure of the first output copper bar 131 will affect the assembly of the first output copper bar 131. Specifically, the first output copper bar 131 extends in the first direction and is located on one side of the first accommodating cavity in the second direction, one end of the first output copper bar 131 is connected to the main relay 172, and the other end of the first output copper bar 131 is accommodated in the first mounting groove 151. During assembly, at least part of the first output copper bar 131 can be overlapped with the main relay 172 to improve the compactness of the overall layout. At the same time, the first output copper bar 131 extends in the first direction to make the arrangement of the first output copper bar 131 more convenient.

[0057] According to an embodiment of the utility model, the second output copper bar 132 includes a first plate 1321, a second plate 1322 and a third plate 1323, wherein the first plate 1321 is connected to the auxiliary relay 175; the second plate 1322 is arranged in the second mounting groove 152; the third plate 1323 extends in the third direction of the first accommodating cavity and is respectively connected to the first plate 1321 and the second plate 1322. Since the second output copper bar 132 is a structure arranged in the first accommodating cavity and used to connect electrical components, the structure of the second output copper bar 132 will affect the assembly of the second output copper bar 132. Specifically, the second output copper bar 132 is provided with a first plate 1321, a second plate 1322 and a third plate 1323, wherein the first plate 1321 is connected to the auxiliary relay 175; the second plate 1322 is arranged in the second mounting groove 152; the third plate 1323 extends in the third direction of the first accommodating cavity and is respectively connected to the first plate 1321 and the second plate 1322. The first plate 1321 extends toward the other side of the first accommodating cavity in the second direction, and the second plate 1322 extends toward one side of the first accommodating cavity in the second direction, that is, the extension directions of the first plate 1321 and the second plate 1322 are opposite, and the structure of the first plate 1321 and the second plate 1322 facilitates the connection of the electrical components arranged in the first accommodating cavity and located on the other side of the second direction with the output structure of the distribution box assembly 1. It is worth noting that the first direction, the second direction and the third direction are orthogonal to each other, so the third plate 1323 extends in the third direction and connects the first plate 1321 and the second plate 1322, which can improve the compactness of the assembly of the second output copper bar 132 and the first accommodating cavity, and facilitate the assembly of the second output copper bar 132.

[0058] In some embodiments, the distribution box assembly 1 may also be provided with a vibration-damping pad 104 to reduce the impact of external vibration on the distribution box assembly 1 .

[0059] The battery pack 101 according to the present invention is briefly described below.

[0060] According to the utility model, a second accommodating cavity 102 and a third accommodating cavity 103 are formed in the battery pack 101 which are arranged at intervals. The second accommodating cavity 102 is suitable for accommodating battery cells, and the third accommodating cavity 103 can accommodate the distribution box assembly 1 in the above-mentioned embodiment. Since the battery pack 101 according to the utility model is provided with the distribution box assembly 1 in the above-mentioned embodiment, when the distribution box assembly 1 is assembled with the battery pack 101, the first connector 121 and the second connector 122 at both ends of the distribution box assembly 1 in the first direction are respectively connected to the main positive and main negative of the battery cells of the battery pack 101, which is convenient for the arrangement of the wiring harness inside the battery pack 101. The compactness of the layout of the distribution box assembly 1 itself can reduce the space occupied by the distribution box assembly 1, thereby increasing the space utilization of the battery cells and improving the energy density of the battery pack 101.

[0061] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0062] In the description of the present invention, "first feature" or "second feature" may include one or more of the features.

[0063] In the description of the present invention, "plurality" means two or more.

[0064] In the description of the present invention, a first feature being “above” or “below” a second feature may include that the first and second features are directly in contact with each other, or may include that the first and second features are not in direct contact but are in contact with each other via another feature therebetween.

[0065] In the description of the present invention, a first feature “above”, “over” and “above” a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0066] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0067] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A distribution box assembly, characterized in that: include: A base, the base extending in a first direction and having a first accommodating cavity formed therein and open toward one side, the first accommodating cavity being suitable for accommodating an electrical component; A first connector and a second connector, wherein the first connector and the second connector respectively connect the electrical component to the positive electrode and the negative electrode of the battery, and the first connector and the second connector are respectively arranged at two ends of the base in a first direction; A first output copper bar and a second output copper bar, the first output copper bar and the second output copper bar are respectively connected to the electrical components, and the first output copper bar and the second output copper bar are respectively arranged on the same side of the base in the second direction and located between the first connecting member and the second connecting member.

2. The power distribution box assembly according to claim 1, characterized in that: The base is formed with a first mounting groove and a second mounting groove adjacent to each other and opening toward the second direction, and the other end of the first output copper bar and the other end of the second output copper bar are respectively received in the first mounting groove and the second mounting groove.

3. The power distribution box assembly according to claim 2, characterized in that: Also includes: An upper cover, the upper cover can be selectively connected to the base to close the first accommodating cavity; in The upper cover is formed with a plurality of avoidance notches, and the avoidance notches are configured to correspond one-to-one with the first mounting groove, the second mounting groove, the first connecting member, and the second connecting member.

4. The power distribution box assembly according to claim 3, characterized in that: Also includes: The protective cover is configured to have a plurality of protective covers corresponding one-to-one to the avoidance notches and respectively cover the first mounting groove, the second mounting groove, the first connecting member, and the second connecting member.

5. The power distribution box assembly according to claim 4, characterized in that: A first matching portion is formed in the avoidance notch, and a second matching portion suitable for slidingly matching and / or snapping with the first matching portion is formed on the protective cover.

6. The power distribution box assembly according to claim 5, characterized in that: The first matching portion is configured as a slide groove formed on the inner wall of the avoidance notch and extending in the opening direction of the first accommodating cavity, and the second matching portion is configured as a first clamping block formed on one side of the protective cover, and the first clamping block is suitable for matching with the slide groove.

7. The power distribution box assembly according to claim 6, characterized in that: The slide groove is structured as a plurality of slide grooves spaced apart in the first direction or the second direction, a hook is provided between two adjacent slide grooves, and a second block cooperating with the hook is provided on the protective cover.

8. The power distribution box assembly according to claim 3, characterized in that: The upper cover is formed with a buckle extending toward the base, the buckle structure is a plurality of buckles arranged at intervals in the circumferential direction of the upper cover, and the base is formed with a clamping protrusion corresponding to the buckle one by one.

9. The power distribution box assembly according to claim 2, characterized in that: The electrical components include: A main fuse and a main relay, wherein the main fuse and the main relay are arranged on one side of the first accommodating cavity in the second direction and are spaced apart from each other on one side in the first direction; A pre-charging resistor and a pre-charging relay are arranged on the other side of the first accommodating cavity in the second direction and are spaced apart on one side in the first direction.

10. The power distribution box assembly according to claim 9, characterized in that: The electrical components also include: A secondary relay, a shunt and a heating fuse, wherein the shunt and the heating fuse are arranged one by one in a second direction of the first accommodating chamber; A heating relay is provided, wherein the heating relay and the diverter are overlapped in the third direction of the first accommodating chamber.

11. The power distribution box assembly according to claim 10, characterized in that: The first output copper bar extends in a first direction, one end of the first output copper bar is connected to the main relay, and the other end of the first output copper bar is received in the first mounting groove.

12. The power distribution box assembly according to claim 11, characterized in that: The second output copper busbar comprises: a first board connected to the auxiliary relay; a second plate, the second plate being disposed in the second mounting groove; A third plate extends in a third direction of the first accommodating cavity and is connected to the first plate and the second plate respectively.

13. A battery pack, characterized in that: The battery pack is provided with a second accommodating cavity and a third accommodating cavity which are spaced apart from each other. The second accommodating cavity is suitable for accommodating the battery cell, and the third accommodating cavity is suitable for accommodating the distribution box assembly. The distribution box assembly is constructed as the distribution box assembly described in any one of claims 1-12 above.

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