CN212230487U - Vehicle and battery pack thereof - Google Patents

Abstract

The utility model discloses a vehicle and battery package thereof, the battery package includes: the tray is internally provided with a first accommodating space and a second accommodating space; the battery array is arranged in the first accommodating space and comprises a plurality of batteries which are sequentially arranged and electrically connected; an electronic electrical box, the electronic electrical box comprising: box body, distribution subassembly and battery management system are located the box body, and the distribution subassembly is connected with the battery management system electricity, and distribution subassembly and battery management system all are connected with the battery array electricity, and in box body detachably located the second accommodation space, the second accommodation space is equipped with first opening to make the box body can break away from the second accommodation space from first opening, and then with the tray separation. Thus, the battery pack provided in this way can be maintained by directly detaching the electronic electrical box from the tray without detaching the battery pack from the vehicle body.

Description

Vehicle and battery pack thereof

Technical Field

The utility model belongs to the technical field of the vehicle technique and specifically relates to a vehicle and battery package thereof is related to.

Background

The distribution subassembly and BMS (battery management system) of vehicle electrical system among the correlation technique install in the battery package, and the high pressure on the distribution subassembly is positive, negative interface, and the low pressure sampling interface of BMS (battery management system) all sets up the top at the battery package, when distribution subassembly and BMS (battery management system) overhaul, need pull down the battery package from the automobile body earlier, then just can realize dismantling the change after opening the battery package, complex operation.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, an object of the utility model is to provide a battery package of vehicle, this battery package can lift the electric box of electron off from the battery package to the maintenance work for the electric box of electron has brought very big facility, and then has improved the user and has used the experience and feel.

The utility model discloses a vehicle is further proposed.

According to the utility model discloses battery package of vehicle, include: the tray is internally provided with a first accommodating space and a second accommodating space; the battery array is arranged in the first accommodating space and comprises a plurality of batteries which are sequentially arranged and electrically connected; an electronic electrical box, the electronic electrical box comprising: box body, distribution subassembly and battery management system, the distribution subassembly with battery management system is located in the box body, just the distribution subassembly with battery management system electricity is connected, the distribution subassembly reaches battery management system all with the battery array electricity is connected, box body detachably locates in the second accommodation space, the second accommodation space is equipped with first opening, so that the box body can be followed first opening breaks away from the second accommodation space, and then with the tray separation.

From this, according to the utility model discloses a battery package of vehicle, when the later stage needs to maintain the electronic electric box of battery package, can need not lift the battery package off from the vehicle, only need with the electronic electric box from the second accommodation space on the first opening take out can. The process is simple and easy to operate, so that the use experience of a user can be improved.

According to some embodiments of the present invention, an external voltage interface and a sampling output interface are disposed on the box body, the external voltage interface is electrically connected to the power distribution assembly, and the sampling output interface is electrically connected to the battery management system; the tray is provided with a second opening, and the external voltage interface and the sampling output interface penetrate through the second opening to be exposed out of the tray; the second opening is provided with a notch, so that the external voltage interface and the sampling output interface can be separated from the notch to the second opening, and then are separated from the tray.

According to some embodiments of the invention, the first opening and the second open-ended notch are all located in the bottom of the tray.

According to some embodiments of the present invention, the box body is further provided with an internal voltage interface and a sampling input interface, the internal voltage interface is connected to the battery array and the power distribution assembly, and the sampling input interface is connected to the battery array and the battery management system; the battery pack further comprises a sampling line and a voltage leading-out connector which are connected with the battery array, the sampling line is used for collecting information of the battery array, the voltage leading-out connector is used for outputting voltage of the battery array, the sampling line is connected with the sampling input interface through a connector clip, and the voltage leading-out connector is connected with the internal voltage interface in a plugging mode.

According to some embodiments of the present invention, the second accommodation space is further provided with a third opening, so as to expose the internal voltage interface and the sampling input interface, the third opening of the second accommodation space and the first opening of the second accommodation space are disposed relatively.

According to some embodiments of the present invention, the tray includes a cross beam, a bottom plate, and a side beam surrounding the bottom plate, wherein the bottom plate and the side beam together define the first accommodating space; the side beams comprise a first side beam and a second side beam which are oppositely arranged along a first direction, and a third side beam and a fourth side beam which are oppositely arranged along a second direction, wherein the first direction is the length direction of the battery pack, the second direction is the width direction of the battery pack, or the first direction is the width direction of the battery pack, and the second direction is the length direction of the battery pack; the cross beam is connected between the first edge beam and the second edge beam, the cross beam is positioned on one side of the third edge beam, which is far away from the fourth edge beam, and the first edge beam, the second edge beam, the third edge beam and the cross beam jointly define the second accommodating space; or, the crossbeam is located the fourth boundary beam deviates from one side of third boundary beam, first boundary beam, second boundary beam, fourth boundary beam and crossbeam inject jointly the second accommodation space, be equipped with on the crossbeam the second opening.

According to some embodiments of the invention, the number of battery arrays is at least two; the tray is still including locating the longeron of bottom plate, the longeron connect in between third boundary beam and the fourth boundary beam, the longeron will first accommodation space separates into a plurality of sub-chambeies, be equipped with at least one in the sub-chamber the battery array.

According to some embodiments of the invention, the tray further comprises a reinforcement, the reinforcement being connected between the cross beam and a third or fourth side beam adjacent to the cross beam, the box being located below the reinforcement.

According to some embodiments of the invention, the tray is an integrally formed part.

According to some embodiments of the invention, the plurality of cells in the cell array are arranged in sequence along a second direction, the length of the cells extends along the first direction, and the thickness of the cells extends along the second direction; the first direction is the length direction of the battery pack, the second direction is the width direction of the battery pack, or the first direction is the width direction of the battery pack, and the second direction is the length direction of the battery pack.

According to some embodiments of the utility model, the battery package still includes the upper cover, first accommodation space and second accommodation space all are equipped with the third opening, the third opening of second accommodation space with the first opening of second accommodation space sets up relatively, the upper cover with the tray is connected, in order to seal first accommodation space and second accommodation space's third opening.

According to some embodiments of the utility model, the inside liquid cooling chamber that is provided with of upper cover, the upper cover is provided with inlet and liquid outlet, the inlet with the liquid outlet all with the liquid cooling chamber is connected and is located the upper cover is kept away from the one end of electronic electric box.

According to some embodiments of the utility model, the box body includes that base and lid are located lid on the base, the lid with the base is connected in order to form and holds the chamber, the distribution subassembly with battery management system is located hold the intracavity, the base with the connection can be dismantled to the tray, with sealed the first opening of second accommodation space.

According to the utility model discloses a vehicle, include: the frame, and the battery package, the battery package set up in the frame.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a perspective view of a battery pack;

fig. 2 is an exploded view of a battery pack;

FIG. 3 is a schematic view of a battery pack without an upper cover;

fig. 4 is a schematic view of a battery pack without an electrical electronics box installed.

Reference numerals:

a battery pack 100;

a tray 10; the first accommodation space 11; the second accommodating space 12; a bottom plate 13; the edge beam 14;

the first side beam 141; a second edge beam 142; a third side beam 143; the fourth side beam 144;

a longitudinal beam 15; a cross member 16; a reinforcement 17;

a battery array 20; a voltage lead-out terminal 21; a sampling line 22;

an electronic electrical box 30; a case 31; a box cover 311; a base 312; an internal voltage interface 32;

an external voltage interface 33; a sampling input interface 34; a sampling output interface 35;

an upper cover 40; a liquid-cooled chamber 41; a liquid inlet 42; a liquid outlet 43;

a first opening 50; a second opening 60; a third opening 70.

Detailed Description

Embodiments of the present invention are described in detail below, and the embodiments described with reference to the drawings are exemplary.

A battery pack 100 for a vehicle according to an embodiment of the present invention is described below with reference to fig. 1 to 4.

As shown in fig. 1 and 2, the battery pack 100 includes: a tray 10, at least one battery array 20, an electrical electronics box 30. The battery pack 100 may provide power to the vehicle to assist the vehicle in operating. The tray 10 is used to mount and support the battery array 20 and the electrical box 30, the battery array 20 is a device for storing electric energy in the battery pack 100, and functions to supply electric energy to the outside, and the electrical box 30 has related electronic components integrated therein and functions as an intermediate connection during the supply of electric energy from the battery array 20 to the outside.

Specifically, as shown in fig. 2, the tray 10 is provided with a first accommodation space 11 and a second accommodation space 12, and the second accommodation space 12 is provided at one side of the first accommodation space 11. That is, the first accommodating space 11 may be located at the left side, and the second accommodating space 12 may be located at the right side. The battery array 20 may be located in the first accommodation space 11, and the electronic electrical box 30 may be located in the second accommodation space 12, and by providing two accommodation spaces, a space is left for placing the battery array 20 and the electronic electrical box 30 on the tray 10. In addition, the tray 10 can limit the relative directions of the battery array 20 and the electrical box 30 placed in the accommodating space.

The battery array 20 may be disposed in the first receiving space 11, wherein the battery array 20 includes a plurality of batteries sequentially arranged and electrically connected. By combining the batteries into the battery array 20 and then combining the battery array 20 into the battery pack 100, the battery pack 100 can store more electric energy, thereby better serving other electric parts. Because of the form of electrical connection between the batteries, the electrode of the total voltage can be led out from one of the battery arrays 20, and of course, the user can also lead out the electrode of the total voltage from a plurality of arrays according to the actual needs.

More specifically, as shown in fig. 2, the electronic electrical box 30 includes: box body 31, distribution subassembly and battery management system are located box body 31, and the distribution subassembly is connected with the battery management system electricity moreover, and distribution subassembly and battery management system all are connected with battery array 20 electricity, and box body 31 detachably locates in second accommodation space 12, and second accommodation space 12 is equipped with first opening 50 to make box body 31 can break away from second accommodation space 12 from first opening 50, and then separate with tray 10. Wherein the first opening 50 of the second receiving space 12 may be located at the bottom of the tray 10 or at the periphery of the tray.

Wherein, set up distribution subassembly and battery management system in box body 31, can reduce the distance of being connected of distribution subassembly and battery management system and other electronic device, box body 31 can protect distribution subassembly and battery management system moreover, avoids receiving external environment's interference to guarantee the normal use of the electric box 30 of electron. When a user needs to take out the box 31 from the second accommodating space 12 to perform maintenance on the electric and electronic components inside the box 31, the box 31 can be taken out from the second accommodating space through the first opening 50. The process is simple to operate, and the use experience of a user can be improved.

Therefore, according to the utility model discloses battery package 100 of vehicle, the cooperation of electronic electric box 30 and the second accommodation space 12 of tray 10 can be loaded and unloaded, when maintaining the electronic electrical component of electronic electric box 30 inside, just can conveniently, directly take out electronic electric box 30 from the first opening 50 on second accommodation space 12 in to improve and maintain work efficiency, also improved user's use simultaneously and experienced the sense.

According to the utility model discloses an embodiment is equipped with external voltage interface 33 and sampling output interface 35 on box body 31, and external voltage interface 33 is connected with the distribution subassembly electricity, and sampling output interface 35 is connected with the battery management system electricity. A second opening 60 is formed in the tray 10, and the external voltage interface 33 and the sampling output interface 35 penetrate through the second opening 60 to be exposed out of the tray 10, so that the tray can be connected with an external load; the second opening 60 has a gap so that the external voltage interface 33 and the sampling output interface 35 can be separated from the second opening 60 and the tray 10.

The sampling output interface 35 is used to output information of the battery management system to the outside, and the external voltage interface 33 is used to transmit the voltage distributed by the power distribution component to the external load. In addition, the external voltage interface 33 and the sampling output interface 35 protrude from the second accommodating space 12, so that no through hole is additionally formed in the box body 31 for placing the external voltage interface 33 and the sampling output interface 35, and therefore the manufacturing processes of the box body 31 can be reduced, and the production cost can be reduced. The arrangement of the notch on the second opening 60 can enable the external voltage interface 33 and the sampling output interface 35 to be taken out from the second accommodating space 12 along with the box body 31, and the whole process is convenient and fast.

Specifically, as shown in fig. 2, the notches of the first opening 50 and the second opening 60 are located at the bottom of the tray 10. This allows the cassette 31 to be removed from the tray in one step in a single operation without the need for a second operation. Therefore, the user experience can be improved.

The embodiment of the utility model provides an in, still be equipped with on the box body 31 to internal voltage interface 32 and sampling input interface 34, to internal voltage interface 32 connection battery array 20 and distribution assembly, sampling input interface 34 connects battery array 20 and battery management system.

The battery pack 100 further comprises a sampling line 22 and a voltage leading-out connector 21, wherein the sampling line 22 is connected with the battery array 20, the sampling line 22 is used for collecting information of the battery array, the voltage leading-out connector 21 is used for outputting voltage of the battery array, the sampling line 22 is connected with the sampling input interface 34 in an inserting mode through a connector, and the voltage leading-out connector 21 is connected with the internal voltage interface 32 in an inserting mode.

Where the internal voltage interface 32 is used to deliver voltage from the battery array 20 to the power distribution assembly, the sampling input interface 34 may transmit information collected from the battery array, including but not limited to temperature, voltage, etc., to the battery management system. This may allow the battery management system to better control the operational state of the battery array 20.

As shown in fig. 2, the second accommodating space 12 is further provided with a third opening 70 to expose the internal voltage interface 32 and the sampling input interface 34, and the third opening 70 of the second accommodating space 12 is disposed opposite to the first opening 50 of the second accommodating space 12. Specifically, the second accommodating space 12 includes two hollow portions, the hollow portion on the upper side and the hollow portion on the lower side penetrate through the two hollow portions, the hollow portion on the upper side is the third opening 70, the hollow portion on the lower side is the first opening 50, the box body 31 can enter the second accommodating space 12 from the first opening 50, at this time, the upper portion of the box body 31 can be exposed from the third opening 70, so that after the battery array 20 is installed, the voltage leading-out connector 21 and the sampling line 22 on the battery array 20 can be respectively and directly contacted with the internal voltage interface 32 and the sampling input interface 34, connection through a wire is avoided, the connection relationship of the mode is reliable, and connection is convenient.

In some alternative embodiments, as shown in fig. 2, the tray 10 includes a cross member 16, a bottom plate 13, and a side member 14 surrounding the bottom plate 13, wherein the bottom plate 13 and the side member together define the first accommodating space 11. The side members 14 include first and second side members 141 and 142 that are disposed to face each other in a first direction, which is a length direction of the battery pack 100, and second and fourth side members 143 and 144 that are disposed to face each other in a second direction, which is a width direction of the battery pack 100 or a width direction of the battery pack 100 and a length direction of the battery pack 100. The cross beam 16 is connected between the first edge beam 141 and the second edge beam 142, the cross beam 16 is located on a side of the third edge beam 143 away from the fourth edge beam 144, and the first edge beam 141, the second edge beam 142, the third edge beam 143 and the cross beam 16 jointly define a second accommodating space 12; or, the cross beam 16 is located on a side of the fourth side beam 144 away from the third side beam 143, the first side beam 141, the second side beam 142, the fourth side beam 144 and the cross beam 16 together define the second accommodating space 12, and the cross beam 16 is provided with the second opening 60. As shown in fig. 2, the first direction is a front-rear direction, and the second direction is a left-right direction. Therefore, the bottom plate 13 can effectively support the battery array 20, the four side beams 14 can be reasonably limited around the bottom plate 13, and the tightness of the battery array 20 can be ensured. The tray 10 thus configured has a reliable structure, which can protect the battery array 20 better and can extend the service life of the battery pack 100.

The bottom plate 13 may have a double-layer structure and may be made of aluminum. The aluminum double-layer structure bottom plate 13 can improve the strength of the bottom plate 13 on one hand, and can prevent the oxidation reaction of the bottom plate 13 due to long-time exposure in the air on the other hand, namely, can avoid the rusting of the bottom plate 13.

According to the utility model discloses an embodiment, battery array 20 is two at least, and tray 10 is still including locating the longeron 15 of bottom plate 13, and longeron 15 is connected between third roof beam 143 and fourth roof beam 144, and longeron 15 separates into a plurality of sub-chambeies with first accommodation space 11, is equipped with at least one battery array 20 in the sub-chamber.

That is, as shown in fig. 1, the number of the battery arrays 20 may be two, and the base plate 13 further includes: a longitudinal beam 15 extending longitudinally, the longitudinal beam 15 being connected between the third and fourth side beams 143, 144, two cell arrays 20 being provided on both sides of the longitudinal beam 15. The two battery arrays 20 can be arranged at intervals, the heat dissipation of the battery arrays 20 can be facilitated to a certain extent due to the arrangement of the intervals, the two battery arrays 20 are respectively placed in the two sub-cavities of the first accommodating space 11 in the front and back direction, the longitudinal beam 15 can separate the two battery arrays 20, and the effect of reinforcing the structural strength of the bottom plate 13 can also be achieved. The battery array 20 can be placed respectively to two sub-chambers that so set up, can subdivide battery array 20 into a plurality of little arrays effectively to can be favorable to guaranteeing battery array 20's the stability of placing, can also be favorable to the heat dissipation of battery, and can promote battery package 100's stability.

As shown in fig. 2, the tray further includes a reinforcement 17, the reinforcement 17 is connected between the cross member 16 and a third side member 143 or a fourth side member 144 disposed adjacent to the cross member 16, and the box body 31 is located below the reinforcement 17. The provision of the reinforcing member 17 makes it possible to limit the projection of the box body 31 from the second accommodating space 12 on the one hand and to make the structure of the second accommodating space 12 more stable on the other hand. The reinforcing member 17 may be a bar.

According to an embodiment of the present invention, the tray 10 is an integrally formed part, for example, the tray 10 can be integrally formed by a casting process, and the integrally formed tray 10 has good advantages in structural strength and working performance.

In some optional embodiments of the present invention, as shown in fig. 2 and 3, the plurality of batteries in the battery array 20 are sequentially arranged along the second direction, the length of the battery extends along the first direction, and the thickness of the battery extends along the second direction. The first direction is a length direction of the battery pack 100 and the second direction is a width direction of the battery pack 100, or the first direction is a width direction of the battery pack 100 and the second direction is a length direction of the battery pack 100. It is understood that the cell arrays 20 are regularly arranged in a certain direction, so that the outer shape of the assembly of the plurality of cell arrays 20 is a cube. So set up, on the one hand can be convenient for the electric connection between each battery array for the mode of electric connection is simpler, and on the other hand, so set up and be convenient for battery array 20 to install on the tray. Wherein the first direction is a front-back direction in fig. 2, and the second direction is a left-right direction in fig. 2.

According to an embodiment of the present invention, the battery pack 100 further includes an upper cover 40, the first accommodating space 11 and the second accommodating space 12 are both provided with a third opening 70, the third opening 70 of the second accommodating space 12 is opposite to the first opening 50 of the second accommodating space 12, and the upper cover 40 is connected to the tray 10 to seal the third openings 70 of the first accommodating space 11 and the second accommodating space 12.

Specifically, the upper side of the first receiving space 11 is opened, which is also referred to as a third opening 70, so that the battery array 20 can be placed in the first receiving space 11 through the third opening 70. In addition, the upper cover 40 and the battery array 20, and the tray 10 and the battery array 20 can be bonded and fixed by a heat conducting structural adhesive, and the heat conducting structural adhesive has good heat conduction and bonding capability, so that the heat of the battery array 20 can be effectively dissipated while the bonding and fixing are ensured. In addition, the battery array 20 and the upper cover 40 are fixedly bonded and the battery array 20 and the tray 10 are fixedly bonded through the heat-conducting structural adhesive, so that the battery pack 100 is simple in structure, high in integration level, low in cost and high in energy density.

As shown in fig. 2, the box 31 includes a base 312 and a cover 311 covering the base, the cover 311 is connected to the base 312 to form a containing cavity, the power distribution assembly and the battery management system are located in the containing cavity, and the base 312 is detachably connected to the tray 10 to seal the first opening 50 of the second containing space 12.

Specifically, the cover 311 is disposed on the base 312, and the bottom edge of the cover 311 does not exceed the edge of the base 312. After the electronic electrical box 30 is mounted in the second accommodating space 12, the box body 31 may be completely located in the second accommodating space 12, and in addition, the edge of the base 312 may also play a role in limiting in the vertical direction, so as to limit the box body 31 from moving upwards, and when the base 312 abuts against the tray 10, it is stated that the mounting of the electronic electrical box 30 and the tray 10 is completed. By the arrangement, the whole battery pack 100 is simple and compact in structure. The box cover 311 is a metal box cover, and the metal box cover may be made of iron, copper or aluminum. In addition, after the electronic electrical box 30 is mounted on the tray 10, the electronic electrical box 30 can be fixedly sealed with the tray 10 by bolts. The sealing process can effectively protect the electrical and electronic components within the electrical and electronic box 30.

According to some embodiments of the present invention, as shown in fig. 1 and fig. 2, the upper cover 40 is provided with a liquid cooling chamber 41 inside, the upper cover 40 is provided with a liquid inlet 42 and a liquid outlet 43, the liquid inlet 42 and the liquid outlet 43 are both connected to the liquid cooling chamber 41, and the upper cover 40 is located at one end away from the electronic electrical box 30.

Specifically, as shown in fig. 1 and fig. 2, a liquid cooling chamber 41 is disposed inside an upper cover 40 of the battery pack 100, a liquid inlet 42 and a liquid outlet 43 are disposed at an end of the upper cover 40, and both the liquid inlet 42 and the liquid outlet 43 are connected to the liquid cooling chamber 41. The interior of the liquid cooling chamber 41 may contain liquid condensate which is used to cool the battery array 20 in operation. The liquid condensate can enter the liquid cooling cavity 41 from the liquid inlet 42 and then flow out from the liquid outlet 43, so that the condensate in the cooling cavity can continuously flow, and the condensate can continuously cool the battery array 20, thereby ensuring the normal operation of the battery array 20 and prolonging the service life of the battery array 20. It should be noted that the liquid inlet 42 and the liquid outlet 43 are not specifically designated, and may be determined according to specific working conditions. The condensate may be water.

In addition, the liquid inlet 42 and the liquid outlet 43 are disposed at an end far away from the electrical box 30, so that the liquid inlet 42 and the liquid outlet 43 can be prevented from influencing the normal operation of the electrical box.

According to the utility model discloses a vehicle, include: the frame and the battery pack 100 of the above embodiment, the battery pack 100 is disposed on the frame, the electronic electrical box 30 of the battery pack 100 can be electrically connected to the driving motor to provide electric energy for the driving motor, and the liquid inlet 42 and the liquid outlet 43 on the battery pack 100 are in butt joint with the air conditioner at the head of the vehicle to realize the circulating flow of the condensate in the liquid cooling cavity 41, thereby cooling the battery array 20.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of 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, should not be construed as limiting the present invention.

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

In the description of the present invention, "a plurality" means two or more.

In the description of the present invention, the first feature "on" or "under" the second feature may include the first and second features being in direct contact, and may also include the first and second features being in contact with each other not directly but through another feature therebetween.

In the description of the invention, the first feature being "on", "above" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (14)

1. A battery pack, comprising:

the tray is internally provided with a first accommodating space and a second accommodating space;

the battery array is arranged in the first accommodating space and comprises a plurality of batteries which are sequentially arranged and electrically connected;

an electronic electrical box, the electronic electrical box comprising: box body, distribution subassembly and battery management system, the distribution subassembly with battery management system is located in the box body, just the distribution subassembly with battery management system electricity is connected, the distribution subassembly reaches battery management system all with the battery array electricity is connected, box body detachably locates in the second accommodation space, the second accommodation space is equipped with first opening, so that the box body can be followed first opening breaks away from the second accommodation space, and then with the tray separation.

2. The battery pack according to claim 1, wherein an external voltage interface and a sampling output interface are arranged on the box body, the external voltage interface is electrically connected with the power distribution assembly, and the sampling output interface is electrically connected with the battery management system;

the tray is provided with a second opening, and the external voltage interface and the sampling output interface penetrate through the second opening to be exposed out of the tray; the second opening is provided with a notch, so that the external voltage interface and the sampling output interface can be separated from the notch to the second opening, and then are separated from the tray.

3. The battery pack of claim 2, wherein the indentations of the first and second openings are located at the bottom of the tray.

4. The battery pack of claim 1, wherein the cartridge body further comprises an internal voltage interface and a sampling input interface, the internal voltage interface connects the battery array and the power distribution assembly, and the sampling input interface connects the battery array and the battery management system;

the battery pack further comprises a sampling line and a voltage leading-out connector which are connected with the battery array, the sampling line is used for collecting information of the battery array, the voltage leading-out connector is used for outputting voltage of the battery array, the sampling line is connected with the sampling input interface through a connector clip, and the voltage leading-out connector is connected with the internal voltage interface in a plugging mode.

5. The battery pack of claim 4, wherein the second receiving space is further provided with a third opening to expose the internal pair of voltage interfaces and the sampling input interface, the third opening of the second receiving space being disposed opposite the first opening of the second receiving space.

6. The battery pack of claim 2, wherein the tray comprises a cross member, a bottom plate, and a side beam surrounding the bottom plate, wherein the bottom plate and the side beam together define the first receiving space;

the side beams comprise a first side beam and a second side beam which are oppositely arranged along a first direction, and a third side beam and a fourth side beam which are oppositely arranged along a second direction, wherein the first direction is the length direction of the battery pack, the second direction is the width direction of the battery pack, or the first direction is the width direction of the battery pack, and the second direction is the length direction of the battery pack;

the cross beam is connected between the first edge beam and the second edge beam, the cross beam is positioned on one side of the third edge beam, which is far away from the fourth edge beam, and the first edge beam, the second edge beam, the third edge beam and the cross beam jointly define the second accommodating space; or, the crossbeam is located the fourth boundary beam deviates from one side of third boundary beam, first boundary beam, second boundary beam, fourth boundary beam and crossbeam inject jointly the second accommodation space, be equipped with on the crossbeam the second opening.

7. The battery pack of claim 6, wherein the battery array is at least two;

the tray is still including locating the longeron of bottom plate, the longeron connect in between third boundary beam and the fourth boundary beam, the longeron will first accommodation space separates into a plurality of sub-chambeies, be equipped with at least one in the sub-chamber the battery array.

8. The battery pack of claim 6, wherein the tray further comprises a reinforcement connected between the cross member and a third or fourth side member disposed adjacent to the cross member, the box being located below the reinforcement.

9. The battery pack of any one of claims 1-8, wherein the tray is an integrally formed piece.

10. The battery pack of claim 1, wherein the plurality of cells in the array are arranged in sequence along a second direction, the length of the cells extending along the first direction, and the thickness of the cells extending along the second direction; the first direction is the length direction of the battery pack, the second direction is the width direction of the battery pack, or the first direction is the width direction of the battery pack, and the second direction is the length direction of the battery pack.

11. The battery pack according to claim 1, further comprising an upper cover, wherein the first receiving space and the second receiving space are each provided with a third opening, the third opening of the second receiving space is disposed opposite to the first opening of the second receiving space, and the upper cover is connected to the tray to seal the third openings of the first receiving space and the second receiving space.

12. The battery pack of claim 11, wherein the upper cover is provided with a liquid cooling cavity therein, and the upper cover is provided with a liquid inlet and a liquid outlet, both of which are connected to the liquid cooling cavity and located at an end of the upper cover away from the electrical box.

13. The battery pack of claim 1, wherein the case body comprises a base and a cover covering the base, the cover is connected to the base to form a receiving cavity, the power distribution assembly and the battery management system are located in the receiving cavity, and the base is detachably connected to the tray to seal the first opening of the second receiving space.

14. A vehicle, characterized by comprising:

vehicle frame, and

the battery pack of any of claims 1-13, disposed on the frame.

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