Battery pack and electric equipment

Abstract

The utility model relates to the technical field of batteries, and discloses a battery pack and electric equipment, the battery pack comprises a battery, a first acquisition piece and a second acquisition piece; the plurality of batteries are arranged in a row along a second direction, the row of batteries form a first battery pack and a second battery pack, the first acquisition part is connected with the first battery pack, the second acquisition part is connected with the second battery pack, and the first acquisition part and the second acquisition part are used as acquisition parts to acquire temperature, voltage and other information of the batteries; the single row of batteries acquire information through the first acquisition part and the second acquisition part, and compared with information acquisition by adopting one acquisition part, the number of the batteries needing information acquisition by the first acquisition part and the second acquisition part is relatively small, so that the number of acquisition lines on the first acquisition part and the second acquisition part is relatively small; the size of the first collection part and the size of the second collection part are small, wiring arrangement of the collection lines can be met, compact design of the battery pack is facilitated, and the battery pack is compact in structure.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery technology field especially relates to a battery pack and electrical equipment. BACKGROUND

[0002] The battery pack includes a battery and a collection component, and the battery needs to collect temperature, voltage and other information through the collection component to realize the monitoring of the battery state. In the related technology, the collection component is an FPC circuit board, and the batteries in the battery pack are arranged in multiple rows and multiple columns. The temperature, voltage and other information of a row of batteries are collected by one collection component. However, when the number of batteries in a single row is relatively large, in order to realize the information collection of multiple batteries, the width dimension of a single collection component needs to be large enough to meet the wiring arrangement of the collection line, which leads to that the collection component occupies a large space in the battery pack in the width direction of the collection component, which is not conducive to the compact design of the battery pack. SUMMARY

[0003] The primary object of the utility model is to provide a battery pack with a relatively compact structure.

[0004] In order to achieve the above object, the utility model provides a battery pack with intersecting first and second directions, comprising a box body, a battery, a first collection component, a second collection component and a connector.

[0005] The battery is arranged in the box body, and the number of the battery is multiple. The multiple batteries are arranged along the second direction to form a first battery group and a second battery group.

[0006] The first collection component is in a strip shape, the length direction of the first collection component is the same as the second direction, the first battery group and the first collection component are arranged along the first direction, and the first collection component is connected with the first battery group.

[0007] The second collection component is in a strip shape, the length direction of the second collection component is the same as the second direction, the second collection component comprises a first connecting part and a second connecting part connected along the second direction, the first connecting part is located between the first collection component and the first battery group, the second battery group and the second connecting part are arranged along the first direction, and the second connecting part is connected with the second battery group.

[0008] One end of the first collection component along the length direction and one end of the first connecting part away from the second connecting part in the second direction are both connected with the connector, and the connector is located on one side of the first battery group away from the second battery group in the second direction.

[0009] In a specific embodiment of the utility model, the first battery group and the second battery group form a battery module.

[0010] The battery pack further comprises an electrical isolation plate and a first temperature acquisition assembly;

[0011] The electrical isolation plate is arranged on one side of the battery module in the first direction, and the electrical isolation plate is provided with a first avoiding hole penetrating in the first direction;

[0012] The first acquisition part comprises a main body part and a third connecting part connected with each other, the main body part is located on the side of the electrical isolation plate away from the battery module in the first direction, the main body part is connected with the connector, the third connecting part is connected with the first temperature acquisition assembly, the third connecting part penetrates the first avoiding hole, the first temperature acquisition assembly is located between the electrical isolation plate and the battery module, and the first temperature acquisition assembly is connected with the battery in the first battery group.

[0013] In a specific embodiment of the utility model, the first connecting part penetrates a second avoiding hole in the first direction, and the second avoiding hole is opposite to the first avoiding hole;

[0014] The third connecting part penetrates the first avoiding hole and the second avoiding hole.

[0015] In a specific embodiment of the utility model, the battery pack further comprises a second temperature acquisition assembly;

[0016] The electrical isolation plate is provided with a third avoiding hole penetrating in the first direction, and the first avoiding hole and the third avoiding hole are arranged at intervals;

[0017] The second acquisition part further comprises a fourth connecting part, the first connecting part and the second connecting part are arranged on the side of the electrical isolation plate away from the battery module, the fourth connecting part is connected with the second connecting part, the fourth connecting part is connected with the second temperature acquisition assembly, the fourth connecting part penetrates the third avoiding hole, the second temperature acquisition assembly is located between the electrical isolation plate and the battery module, the second temperature acquisition assembly is connected with the battery in the second battery group, and the second temperature acquisition assembly is arranged at intervals with the first temperature acquisition assembly.

[0018] In a specific embodiment of the utility model, the battery pack further comprises a positioning boss, the positioning boss is arranged on the side of the electrical isolation plate facing the battery module, and the number of the positioning boss is multiple, and the multiple positioning bosses are arranged at intervals;

[0019] The first temperature acquisition assembly is in contact with the circumferential surface of one positioning boss, and the second temperature acquisition assembly is in contact with the circumferential surface of another positioning boss.

[0020] In a specific embodiment of the utility model, the positioning boss comprises a first positioning strip and a second positioning strip, the first positioning strip and the second positioning strip are arranged on one side of the electrical isolation plate facing the battery module, one end of the first positioning strip along the length direction is connected with one end of the second positioning strip along the length direction, and the length direction of the first positioning strip intersects with the length direction of the second positioning strip.

[0021] The first temperature collection component contacts the circumferential surface of the first positioning strip and / or the second positioning strip corresponding to the positioning boss.

[0022] The second temperature collection component contacts the circumferential surface of the first positioning strip and / or the second positioning strip corresponding to the positioning boss.

[0023] In a specific embodiment of the utility model, the battery pack further comprises a busbar, a first collection terminal and a second collection terminal.

[0024] The busbar is arranged on one side of the electrical isolation plate away from the battery module in the first direction, the busbar has a containing groove, the containing groove is located on one side of the busbar away from the electrical isolation plate, and two adjacent batteries are connected through the busbar, wherein the busbar connecting two adjacent batteries in the first battery group is a first busbar, and the busbar connecting two adjacent batteries in the second battery group is a second busbar.

[0025] The first collection terminal connects the main body part and the groove bottom surface of the containing groove on the first busbar.

[0026] The second collection terminal connects the second connecting part and the groove bottom surface of the containing groove on the second busbar.

[0027] In a specific embodiment of the utility model, the first battery group and the second battery group form a battery module.

[0028] The battery pack further comprises an electrical isolation plate and a positioning column.

[0029] The electrical isolation plate is arranged on one side of the battery module in the first direction, and the first collection part and the second collection part are located on one side of the electrical isolation plate away from the battery module in the first direction.

[0030] The positioning column is arranged on one side of the electrical isolation plate away from the battery module, and the number of the positioning column is multiple.

[0031] A plurality of positioning holes are arranged on the first collection part and the second collection part in the first direction.

[0032] One of the positioning column is provided with one of the positioning hole.

[0033] In a specific embodiment of the utility model, the battery pack further comprises a protective shell, the connector is arranged in the protective shell, the first collecting member is connected with the corresponding connector through the protective shell, and the first connecting part is connected with the corresponding connector through the protective shell.

[0034] The utility model further provides a kind of electric equipment, including the battery pack as described above.

[0035] Compared with the prior art, the battery pack and the electric equipment of the utility model embodiment have the beneficial effects that:

[0036] The battery pack of the utility model, multiple batteries are arranged into a row along the second direction, the row of batteries forms a first battery pack and a second battery pack, the first collecting member is connected with the first battery pack, the second collecting member is connected with the second battery pack, the first collecting member and the second collecting member serve as collecting components to collect the temperature, voltage and other information of the batteries, in actual application, the first collecting member collects the temperature, voltage and other information of the batteries in the first battery pack, and the second collecting member collects the temperature, voltage and other information of the batteries in the second battery pack, that is, the single-row battery collects information through the first collecting member and the second collecting member, compared with using one collecting component to collect information, the number of batteries that need to be collected by the first collecting member and the second collecting member is relatively small, and therefore, the number of collecting lines on the first collecting member and the second collecting member is relatively small, the size of the first collecting member and the second collecting member is relatively small and can also meet the wiring arrangement of collecting lines, which is beneficial to the compact design of the battery pack, and the structure of the battery pack is relatively compact. BRIEF DESCRIPTION OF DRAWINGS

[0037] Figure 1 is the structure diagram of the battery pack of the utility model embodiment;

[0038] Figure 2 is the structure diagram of the battery and the electrical isolation plate of the utility model embodiment;

[0039] Figure 3 is the structure diagram of the electrical isolation plate, the first collecting member, the second collecting member and the bus member of the utility model embodiment;

[0040] Figure 4 is the structure diagram of the utility model embodiment Figure 3 is the enlarged schematic view of A in the utility model embodiment;

[0041] Figure 5 is the structure diagram of the utility model embodiment Figure 3 is the enlarged schematic view of B in the utility model embodiment;

[0042] Figure 6is an embodiment of the utility model Figure 3 The enlarged schematic view of C;

[0043] Figure 7 is the explosion schematic view of the first collecting piece and the second collecting piece of the utility model embodiment

[0044] Figure 8 is an embodiment of the utility model Figure 7 The enlarged schematic view of D;

[0045] Figure 9 is the structure view of the electrical isolation plate, the second collecting piece and the second temperature collecting assembly of the utility model embodiment.

[0046] In the figure, Z, first direction; X, second direction; 1, box body; 2, battery; 200, battery module; 2A, first battery pack; 2B, second battery pack; 3, first collecting piece; 31, main body part; 32, third connecting part; 4, second collecting piece; 41, first connecting part; 4101, second avoiding hole; 42, second connecting part; 43, fourth connecting part; 5, connector; 6, electrical isolation plate; 601, first avoiding hole; 602, third avoiding hole; 61, positioning boss; 611, first positioning strip; 612, second positioning strip; 62, positioning column; 7, first temperature collecting assembly; 8, second temperature collecting assembly; 10, converging piece; 101, containing recess; 10A, first converging piece; 10B, second converging piece; 20, first collecting terminal; 30, second collecting terminal; 40, protective shell; 100, positioning hole. DETAILED DESCRIPTION

[0047] The specific implementation of the utility model will be described in further detail below in combination with the drawings and embodiments. The following embodiments are used to illustrate the utility model, but not to limit the scope of the utility model.

[0048] In the description of the application, it needs to be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first", "second" can be explicitly or implicitly included one or more of the features. In the description of the application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified and limited.

[0049] In the description of the application, it needs to be understood that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, it can be directly connected, or indirectly connected through intermediate medium, it can be the communication inside two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0050] In the application, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature to the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the "upper", "above" and "on" of the first feature to the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The "below", "under" and "under" of the first feature to the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0051] In the embodiments of the application, "parallel" means that the angle formed by straight lines, straight lines and surfaces, or surfaces is -1°-1°. In addition, "perpendicular" means that the angle formed by straight lines, straight lines and surfaces, or surfaces is 89°-91°. Equal distance, equal angle or equal area means that the tolerance range is -1%-1%.

[0052] The application provides a kind of electric equipment, it includes the battery pack as follows, wherein, battery pack is used to store and output electric energy, provide power supply for electric equipment, electric equipment includes but is not limited to electric vehicle, unmanned aerial vehicle, mobile power etc.;Since electric equipment uses the following battery pack, whereby, electric equipment also has the advantages of the following battery pack, the application does not make too much repetition.

[0053] As Figures 1 to 9 The utility model discloses an embodiment of a battery pack, with the first direction Z and the second direction X, comprising box 1, battery 2, first collection spare 3, second collection spare 4 and connector 5;Battery 2 is located in box 1, and the number of battery 2 is multiple, and multiple battery 2 is arranged along the second direction X and forms first battery group 2A and second battery group 2B;First collection spare 3 is strip-shaped, and the length direction of first collection spare 3 is same with the second direction X, and first battery group 2A, first collection spare 3 is arranged along the first direction Z, and first collection spare 3 is connected with first battery group 2A;Second collection spare 4 is strip-shaped, and the length direction of second collection spare 4 is same with the second direction X, and second collection spare 4 includes first connecting portion 41 and second connecting portion 42 connected along the second direction X, and first connecting portion 41 is located between first collection spare 3 and first battery group 2A, and second battery group 2B, second connecting portion 42 is arranged along the first direction Z, and second connecting portion 42 is connected with second battery group 2B;The one end of first collection spare 3 along its length direction, the one end of first connecting portion 41 away from second connecting portion 42 in the second direction X are all connected with connector 5, and connector 5 is located on the side of first battery group 2A away from second battery group 2B in the second direction X.

[0054] Specifically, multiple battery 2 is arranged into a row along the second direction X, and the row battery 2 forms first battery group 2A and second battery group 2B, and first collection spare 3 is connected with first battery group 2A, and second collection spare 4 is connected with second battery group 2B, and first collection spare 3 and second collection spare 4 are used as collection components to collect the temperature, voltage and other information of battery 2, in actual application, first collection spare 3 collects the temperature, voltage and other information of battery 2 in first battery group 2A, and second collection spare 4 collects the temperature, voltage and other information of battery 2 in second battery group 2B, that is, single-row battery 2 collects information through first collection spare 3 and second collection spare 4, and compared with using one collection component to collect information, the number of battery 2 that first collection spare 3 and second collection spare 4 need to collect information is relatively small, and thus, the number of collection lines on first collection spare 3 and second collection spare 4 is relatively small, and the size of first collection spare 3 and second collection spare 4 can also meet the wiring arrangement of collection lines, which is beneficial to the compact design of battery pack, and the structure of battery pack is relatively compact.

[0055] In practical application, the battery pack further comprises a battery management system, the first collecting member 3 and the second collecting member 4 are connected with the battery management system through the connector 5 to transmit the collected information to the battery management system, in the embodiment, as shown in Figure 2 、 Figure 3 and Figure 6 , the connector 5 is located on the side of the first battery group 2A away from the second battery group 2B in the second direction X, thus, when the first collecting member 3 and the second collecting member 4 are connected with the battery management system, only the same side needs to be operated, and the assembly is simple and convenient.

[0056] In the embodiment, as shown in Figure 3 、 Figure 4 and Figure 7 , the first connecting part 41 is located between the first collecting member 3 and the first battery group 2A, and the second battery group 2B and the second connecting part 42 are arranged along the first direction Z, that is, the first collecting member 3 and the second collecting member 4 are stacked in the first direction Z, thus, the second collecting member 4 does not need to additionally bypass the first collecting member 3 to be connected with the connector 5, the occupied space is less, and it is more conducive to the compact design of the battery pack.

[0057] Specifically, the first collecting member 3 and the second collecting member 4 are both flexible circuit boards.

[0058] Further, as shown in Figure 2 、 Figure 3 、 Figure 4 、 Figure 7 and Figure 8 , the first battery group 2A and the second battery group 2B form a battery module 200; the battery pack further comprises an electrical isolation plate 6 and a first temperature collecting assembly 7; the electrical isolation plate 6 is arranged on one side of the battery module 200 in the first direction Z, and the electrical isolation plate 6 is provided with a first avoiding hole 601 penetrating along the first direction Z; the first collecting member 3 comprises a main body part 31 and a third connecting part 32 connected with each other, the main body part 31 is located on the side of the electrical isolation plate 6 away from the battery module 200 in the first direction Z, the main body part 31 is connected with the connector 5, the third connecting part 32 is connected with the first temperature collecting assembly 7, the third connecting part 32 penetrates the first avoiding hole 601, the first temperature collecting assembly 7 is located between the electrical isolation plate 6 and the battery module 200, and the first temperature collecting assembly 7 is connected with the battery 2 in the first battery group 2A; specifically, the first temperature collecting assembly 7 comprises a temperature sensor, the first temperature collecting assembly 7 is connected with the outer wall surface of the battery 2, the temperature information of the battery 2 is collected through the temperature sensor, and by opening the first avoiding hole 601 on the electrical isolation plate 6, the first collecting member 3 can smoothly collect the temperature information of the battery 2 in the first battery group 2A.

[0059] Further, as shown in Figure 8As shown, the first connecting portion 41 penetrates the second avoiding hole 4101 in the first direction Z, and the second avoiding hole 4101 is opposite to the first avoiding hole 601; the third connecting portion 32 penetrates the first avoiding hole 601 and the second avoiding hole 4101, that is, the second collecting member 4 provides an avoiding space for the third connecting portion 32 of the first collecting member 3 to pass through, so that the third connecting portion 32 does not need to extend to both sides of the second collecting member 4 along the length direction, thereby reducing the space occupation and being more conducive to the compact design of the battery pack.

[0060] In the embodiment, as shown in Figure 3 , Figure 5 and Figure 9 , the battery pack further comprises a second temperature collecting assembly 8, the electrical isolation plate 6 is provided with a third avoiding hole 602 penetrating in the first direction Z, and the first avoiding hole 601 and the third avoiding hole 602 are arranged at intervals; the second collecting member 4 further comprises a fourth connecting portion 43, the first connecting portion 41 and the second connecting portion 42 are arranged on the side of the electrical isolation plate 6 away from the battery module 200, the fourth connecting portion 43 is connected with the second connecting portion 42, the second temperature collecting assembly 8 is connected with the fourth connecting portion 43, the fourth connecting portion 43 penetrates the third avoiding hole 602, the second temperature collecting assembly 8 is located between the electrical isolation plate 6 and the battery module 200, the second temperature collecting assembly 8 is connected with the battery 2 in the second battery group 2B, and the second temperature collecting assembly 8 is arranged at intervals with the first temperature collecting assembly 7; specifically, the second temperature collecting assembly 8 also comprises a temperature sensor, the second temperature collecting assembly 8 is connected with the outer wall surface of the battery 2, the temperature information of the battery 2 is collected through the temperature sensor, and the third avoiding hole 602 is arranged on the electrical isolation plate 6, so that the second collecting member 4 can smoothly collect the temperature information of the battery 2 in the second battery group 2B.

[0061] Further, as shown in Figure 9 , the battery pack further comprises a positioning boss 61, the positioning boss 61 is arranged on the side of the electrical isolation plate 6 facing the battery module 200, and the number of the positioning boss 61 is multiple, and the multiple positioning bosses 61 are arranged at intervals; the first temperature collecting assembly 7 is in contact with the circumferential side surface of one positioning boss 61, and the second temperature collecting assembly 8 is in contact with the circumferential side surface of another positioning boss 61; specifically, the positioning boss 61 mainly plays a role of positioning and limiting, in actual application, the first temperature collecting assembly 7 and the second temperature collecting assembly 8 are connected with the battery 2 by means of adhesion, and when the first temperature collecting assembly 7 and the second temperature collecting assembly 8 are connected with the battery 2, the positioning boss 61 facilitates the operator to place the first temperature collecting assembly 7 and the second temperature collecting assembly 8 to the preset position, and the assembly is convenient; as one of the specific implementations of the embodiment, as shown in Figure 9As shown, the positioning boss 61 comprises a first positioning strip 611 and a second positioning strip 612, both of which are arranged on the side of the electrically isolated plate 6 facing the battery module 200, one end of the first positioning strip 611 along its length direction is connected with one end of the second positioning strip 612 along its length direction, the length direction of the first positioning strip 611 is perpendicular to the length direction of the second positioning strip 612, that is, the positioning boss 61 is L-shaped, which is simple in structure, and the positioning boss 61 has two positioning edges of the first positioning strip 611 and the second positioning strip 612, and the positioning is reliable; wherein the first temperature collection component 7 is in contact with the peripheral side surface of the first positioning strip 611 and / or the second positioning strip 612 of the corresponding positioning boss 61; the second temperature collection component 8 is in contact with the peripheral side surface of the first positioning strip 611 and / or the second positioning strip 612 of the corresponding positioning boss 61.

[0062] It should be noted that in the present application, the number of the first temperature collection component 7 and the second temperature collection component 8 can be one or more, and the present application does not limit this, when the first temperature collection component 7 and the second temperature collection component 8 are multiple, one first temperature collection component 7 is in contact with the peripheral side surface of one positioning boss 61, and one second temperature collection component 8 is in contact with the peripheral side surface of one positioning boss 61, that is, each first temperature collection component 7 and each second temperature collection component 8 are positioned by one positioning boss 61.

[0063] In the present embodiment, as Figures 3 to 5As shown, the battery pack further comprises busbars 10, a first collection terminal 20 and a second collection terminal 30; the busbars 10 are arranged on the side of the electrically isolated plate 6 away from the battery module 200 in the first direction Z, and the busbars 10 have receiving grooves 101 on the side of the busbars 10 away from the electrically isolated plate 6, and two adjacent batteries 2 are connected by the busbars 10, wherein the busbar 10 connecting two adjacent batteries 2 in the first battery group 2A is a first busbar 10A, and the busbar 10 connecting two adjacent batteries 2 in the second battery group 2B is a second busbar 10B; the first collection terminal 20 connects the main body part 31 and the groove bottom surface of the receiving groove 101 on the first busbar 10A; the second collection terminal 30 connects the second connecting part 42 and the groove bottom surface of the receiving groove 101 on the second busbar 10B; specifically, the first collection terminal 20 and the second collection terminal 30 are both nickel sheets, the first collection part 3 collects the voltage information of the batteries 2 in the first battery group 2A through the first collection terminal 20, and the second collection part 4 collects the voltage information of the batteries 2 in the second battery group 2B through the second collection terminal 30; wherein the advantage of the busbar 10 having the receiving groove 101 is that the receiving groove 101 can play a role in accommodating the first collection terminal 20 and the second collection terminal 30, and the first collection terminal 20 and the second collection terminal 30 will not protrude out of the busbar 10 in the first direction Z or the height of protruding out of the busbar 10 is relatively small, so that the first collection terminal 20 and the second collection terminal 30 will not occupy too much space in the first direction Z with the busbar 10, which is conducive to the compact design of the battery pack; moreover, the receiving groove 101 can also play a positioning role, so that the connection position of the first collection terminal 20 and the second collection terminal 30 with the busbar 10 is relatively certain, which is convenient for the operator to assemble.

[0064] It should be noted that the electrically isolated plate 6 is provided with a relief through hole in the first direction Z, and the busbar 10 is connected with the pole of the battery 2 through the relief through hole, which is prior art, and the present application will not make too much description.

[0065] In the embodiment, as Figures 3 to 5As shown, the battery pack further comprises positioning columns 62, which are arranged on the side of the electrical isolation plate 6 away from the battery module 200, and the number of the positioning columns 62 is multiple; the first collecting piece 3 and the second collecting piece 4 are both provided with multiple positioning holes 100 in the first direction Z; wherein one positioning column 62 is arranged in one positioning hole 100, preferably, among the multiple positioning holes 100 on the first collecting piece 3, one positioning hole 100 is a circular hole, and the other positioning holes 100 are elliptical holes, similarly, among the multiple positioning holes 100 on the second collecting piece 4, one positioning hole 100 is a circular hole, and the other positioning holes 100 are elliptical holes, specifically, the circular hole serves as a positioning reference, the first collecting piece 3 and the second collecting piece 4 are flexible circuit boards, which have a certain amount of expansion and contraction, and the first collecting piece 3 and the second collecting piece 4 are spread from the circular hole to the elliptical hole during installation, and the long side of the elliptical hole is parallel to the second direction X, so that the first collecting piece 3 and the second collecting piece 4 can have a certain amount of translation in the second direction X, and the position of the first collecting piece 3 and the second collecting piece 4 can be adjusted locally to absorb the design tolerance.

[0066] In the present application, as shown in Figure 2 、 Figure 3 and Figure 6 , the battery pack further comprises a protective shell 40, the connector 5 is arranged in the protective shell 40, the first collecting piece 3 is connected with the corresponding connector 5 by penetrating the protective shell 40, and the first connecting part 41 is connected with the corresponding connector 5 by penetrating the protective shell 40; specifically, the protective shell 40 serves a protective function, for example, in some embodiments, the battery pack comprises a liquid cooling assembly, which serves to manage the heat of the battery 2, wherein the liquid cooling assembly is arranged in the box 1 and located on the side of the electrical isolation plate 6 away from the battery module 200 in the first direction Z (the top side of the battery pack), and the connector 5 is located on one side of the liquid cooling assembly in the first direction Z (the lower side of the liquid cooling assembly), and the liquid cooling assembly is the lowest temperature point of the entire battery pack, and relatively speaking, the position of the liquid cooling assembly is prone to water vapor accumulation, when the water vapor accumulates to a certain amount, it is possible that condensed water drops into the connector 5 and the plug-in part of the first collecting piece 3 and the second collecting piece 4, forming a short circuit and causing the entire battery pack to fail, therefore, the arrangement of the protective shell 40 can avoid such risks, which can prevent condensed water from dropping into the position where the connector 5 is located; for example, the protective shell 40 is formed by a plastic suction process, the upper part of the outer wall surface is a flow guide slope, and the outer wall surface forms a flow guide groove located on the lower side of the flow guide slope, both the flow guide slope and the flow guide groove can serve to guide the condensed water to the bottom of the battery pack, avoiding the accumulation of condensed water on the outer wall surface of the protective shell 40.

[0067] The above merely is the preferred implementation form of the present application, and it should be noted that, for the ordinary skilled in the art, without departing from the technical principles of the present application, a number of improvements and substitutions can be made, and these improvements and substitutions should also be considered as the protection scope of the present application.

Claims

1. A battery pack having a first direction (Z) and a second direction (X) intersecting, characterized by, The battery pack comprises a box (1), a battery (2), a first collecting piece (3), a second collecting piece (4) and a connector (5); The battery (2) is arranged in the box (1), and a plurality of the batteries (2) are arranged along the second direction (X) to form a first battery group (2A) and a second battery group (2B); The first collecting piece (3) is in a strip shape, the length direction of the first collecting piece (3) is the same as the second direction (X), the first battery group (2A) and the first collecting piece (3) are arranged along the first direction (Z), and the first collecting piece (3) is connected with the first battery group (2A); The second collecting piece (4) is in a strip shape, the length direction of the second collecting piece (4) is the same as the second direction (X), the second collecting piece (4) comprises a first connecting part (41) and a second connecting part (42) connected along the second direction (X), the first connecting part (41) is located between the first collecting piece (3) and the first battery group (2A), the second battery group (2B) and the second connecting part (42) are arranged along the first direction (Z), and the second connecting part (42) is connected with the second battery group (2B); The first collecting piece (3) is connected with the connector (5) at one end along the length direction thereof, and the first connecting part (41) is connected with the connector (5) at one end away from the second connecting part (42) in the second direction (X), and the connector (5) is located on one side of the first battery group (2A) away from the second battery group (2B) in the second direction (X).

2. The battery pack of claim 1, wherein, The first battery group (2A) and the second battery group (2B) form a battery module (200); The battery pack further comprises an electrical isolation plate (6) and a first temperature collecting assembly (7); The electrical isolation plate (6) is arranged on one side of the battery module (200) in the first direction (Z), and the electrical isolation plate (6) is provided with a first avoiding hole (601) penetrating in the first direction (Z); The first collecting piece (3) comprises a main body part (31) and a third connecting part (32) connected with each other, the main body part (31) is located on one side of the electrical isolation plate (6) away from the battery module (200) in the first direction (Z), the main body part (31) is connected with the connector (5), the third connecting part (32) is connected with the first temperature collecting assembly (7), the third connecting part (32) penetrates the first avoiding hole (601), the first temperature collecting assembly (7) is located between the electrical isolation plate (6) and the battery module (200), and the first temperature collecting assembly (7) is connected with the battery (2) in the first battery group (2A).

3. The battery pack of claim 2, wherein, The first connecting part (41) penetrates a second avoiding hole (4101) in the first direction (Z), and the second avoiding hole (4101) is opposite to the first avoiding hole (601). The third connecting part (32) penetrates the first avoiding hole (601) and the second avoiding hole (4101).

4. The battery pack of claim 2, wherein, The battery pack further comprises a second temperature collecting assembly (8); The electrical isolation plate (6) is provided with a third avoiding hole (602) along the first direction (Z), and the first avoiding hole (601) and the third avoiding hole (602) are arranged at intervals; The second collecting part (4) further comprises a fourth connecting part (43), the first connecting part (41) and the second connecting part (42) are arranged on the side of the electrical isolation plate (6) away from the battery module (200), the fourth connecting part (43) is connected with the second connecting part (42), the second temperature collecting assembly (8) is connected on the fourth connecting part (43), the fourth connecting part (43) penetrates the third avoiding hole (602), the second temperature collecting assembly (8) is located between the electrical isolation plate (6) and the battery module (200), and the second temperature collecting assembly (8) is connected with the battery (2) in the second battery pack (2B), and the second temperature collecting assembly (8) is arranged at intervals with the first temperature collecting assembly (7).

5. The battery pack of claim 4, wherein, The battery pack further comprises a positioning boss (61), the positioning boss (61) is arranged on the side of the electrical isolation plate (6) facing the battery module (200), and the number of the positioning boss (61) is multiple, and the multiple positioning bosses (61) are arranged at intervals; The first temperature collecting assembly (7) is in contact with the circumferential side of one of the positioning bosses (61), and the second temperature collecting assembly (8) is in contact with the circumferential side of another of the positioning bosses (61).

6. The battery pack of claim 5, wherein, The positioning boss (61) comprises a first positioning strip (611) and a second positioning strip (612), the first positioning strip (611) and the second positioning strip (612) are arranged on the side of the electrical isolation plate (6) facing the battery module (200), one end of the first positioning strip (611) along the length direction is connected with one end of the second positioning strip (612) along the length direction, and the length direction of the first positioning strip (611) intersects with the length direction of the second positioning strip (612); The first temperature collecting assembly (7) is in contact with the circumferential side of the first positioning strip (611) and / or the second positioning strip (612) corresponding to the positioning boss (61); The second temperature collecting assembly (8) is in contact with the circumferential side of the first positioning strip (611) and / or the second positioning strip (612) corresponding to the positioning boss (61).

7. The battery pack of claim 2, wherein, The battery pack further comprises a current collecting part (10), a first collecting terminal (20) and a second collecting terminal (30); The busbar (10) is arranged on the side of the electrical isolation plate (6) away from the battery module (200) in the first direction (Z), and the busbar (10) has a receiving groove (101) on the side of the busbar (10) away from the electrical isolation plate (6), and two adjacent batteries (2) in the second direction (X) are connected by the busbar (10), wherein the busbar (10) connecting two adjacent batteries (2) in the first battery group (2A) is a first busbar (10A), and the busbar (10) connecting two adjacent batteries (2) in the second battery group (2B) is a second busbar (10B); The first collecting terminal (20) connects the main body (31) and the bottom surface of the receiving groove (101) on the first busbar (10A); The second collecting terminal (30) connects the second connecting part (42) and the bottom surface of the receiving groove (101) on the second busbar (10B).

8. The battery pack of claim 1, wherein, The first battery group (2A) and the second battery group (2B) form a battery module (200); The battery pack further comprises an electrical isolation plate (6) and a positioning column (62); The electrical isolation plate (6) is arranged on one side of the battery module (200) in the first direction (Z), and the first collecting member (3) and the second collecting member (4) are arranged on the side of the electrical isolation plate (6) away from the battery module (200) in the first direction (Z); The positioning column (62) is arranged on the side of the electrical isolation plate (6) away from the battery module (200), and the number of the positioning column (62) is multiple; The first collecting member (3) and the second collecting member (4) are provided with multiple positioning holes (100) penetrating in the first direction (Z); One positioning column (62) penetrates one positioning hole (100).

9. The battery pack of claim 1, wherein, The battery pack further comprises a protective shell (40), the connector (5) is arranged in the protective shell (40), the first collecting member (3) penetrates the protective shell (40) and is connected with the corresponding connector (5), and the first connecting part (41) penetrates the protective shell (40) and is connected with the corresponding connector (5).

10. An electric device, characterized by The battery pack comprises the battery pack according to any one of claims 1-9. The battery pack comprises the battery pack according to any one of claims 1-9.

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