Battery pack and vehicle

Abstract

Disclosed in the present application are a battery pack and a vehicle. The battery pack comprises: a box body, a plurality of battery cell modules, at least one first electrical connector, and at least one second connector. As the box body is provided with a first opening and a second opening, the plurality of battery cell modules can be first stacked in an accommodating cavity, then the first electrical connector is connected to first electrical connection ends of two adjacent battery cell modules by means of the first opening of the box body, and the second connector is connected to second electrical connection ends of the two adjacent battery cell modules by means of the second opening of the box body, so that the batter cell modules are connected in series.

Description

Battery pack and vehicle

[0001] The present application claims priority to the Chinese patent application No. 2024223263443 and 2024113316701 filed on September 23, 2024 with the China Patent Office, the contents of which are incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the technical field of batteries, in particular to a battery pack and a vehicle. BACKGROUND

[0003] With the development of economy and the progress of technology, electric vehicles, outdoor power sources or other larger power consumption products all have the need for long power supply endurance. In recent years, battery packs as important energy storage carriers for electric quantity have been continuously researched and innovated in various fields.

[0004] The battery pack usually comprises a box body and a plurality of battery cell modules in the box body; wherein the plurality of battery cell modules are usually assembled in series and parallel through copper bars. TECHNICAL PROBLEM

[0005] However, during the installation of the battery pack, the battery cell modules and the copper bars are usually arranged alternately for installation, that is, after the installation of the next battery cell module on the previous battery cell module, the two battery cell modules are connected in series through the copper bar. Since the voltage of the plurality of battery cell modules connected in series is usually large, if there is an installation error during the operation of the worker, it is easy to cause short circuit and other adverse phenomena of the battery pack, and may also cause personal injury to the installer. TECHNICAL SOLUTION

[0006] In a first aspect, the present application provides a battery pack, comprising: a box body, a plurality of battery cell modules, at least one first electrical connection member and at least one second electrical connection member; the box body has a receiving cavity, and a first opening and a second opening communicating with the receiving cavity; the plurality of battery cell modules are stacked in the receiving cavity along a first direction, each battery cell module has a first electrical connection end and a second electrical connection end oppositely arranged in a second direction, and the first direction intersects the second direction; one first electrical connection member is connected with the first electrical connection end of two adjacent battery cell modules respectively, and the part of the first electrical connection member connected with the first electrical connection end is exposed through the first opening; one second electrical connection member is connected with the second electrical connection end of two adjacent battery cell modules respectively, and the part of the second electrical connection member connected with the second electrical connection end is exposed through the second opening.

[0007] In a second aspect, the present application provides a vehicle, comprising: a vehicle body, and a battery pack installed in the vehicle body, wherein the battery pack is the battery pack described above. Advantages

[0008] The present application has the following advantages: since the box is provided with the first opening and the second opening, the plurality of battery cell modules can be first stacked in the accommodating cavity, then the first electrical connector is connected to the first electrical connection end of the two adjacent battery cell modules through the first opening in the box, and the second electrical connector is connected to the second electrical connection end of the two adjacent battery cell modules through the second opening in the box, so as to realize the series connection between the battery cell modules. In this way, the two battery cell modules are not connected in series after the latter battery cell module is installed on the former battery cell module. Instead, the battery cell modules are first stacked in the accommodating cavity of the box, and then the battery cell modules stacked in the accommodating cavity of the box are connected in series. In this way, even if the battery cell modules are assembled in the accommodating cavity and the worker installs a certain battery cell module in reverse, the battery pack is not prone to short circuit. BRIEF DESCRIPTION OF DRAWINGS

[0009] FIG. 1 is a structural schematic diagram of a battery pack according to an embodiment of the present application;

[0010] FIG. 2 is a structural schematic diagram of a battery cell module according to an embodiment of the present application;

[0011] FIG. 3 is a structural schematic diagram of a first electrical connector according to an embodiment of the present application;

[0012] FIG. 4 is a partial structural schematic diagram of a battery pack according to an embodiment of the present application;

[0013] FIG. 5 is a partial structural schematic diagram of another battery pack according to an embodiment of the present application;

[0014] FIG. 6 is a partial structural schematic diagram of another battery pack according to an embodiment of the present application;

[0015] FIG. 7 is a partial structural schematic diagram of another battery pack according to an embodiment of the present application;

[0016] FIG. 8 is a partial structural schematic diagram of a battery pack according to another embodiment of the present application;

[0017] FIG. 9 is a structural schematic diagram of another battery cell module according to an embodiment of the present application;

[0018] FIG. 10 is a structural schematic diagram of another battery cell module according to an embodiment of the present application.

[0019] Embodiments of the present application

[0020] The embodiment of the present application provides a battery pack, please refer to figure 1 and figure 2, figure 1 is the structural schematic diagram of a battery pack provided by the embodiment of the present application, figure 2 is the structural schematic diagram of a battery cell module provided by the embodiment of the present application. The battery pack 000 can include: box 100, a plurality of battery cell modules 200, at least one first electrical connector 300 and at least one second electrical connector 400.

[0021] The box 100 in the battery pack 000 can have a containing cavity A, and a first opening K1 and a second opening K2 in communication with the containing cavity A.

[0022] The plurality of battery cell modules 200 in the battery pack 000 can be stacked in the containing cavity A along a first direction F1. Wherein, each battery cell module 200 can have a first electrical connection end 201 and a second electrical connection end 202 oppositely arranged in a second direction F2.

[0023] Here, the two first electrical connection ends 201 in two adjacent distributed battery cell modules 200 can be electrically connected, so that the two adjacent distributed battery cell modules 200 can be connected in series through the electrical connection of the two first electrical connection ends 201 in the two adjacent distributed battery cell modules 200. Similarly, the two second electrical connection ends 202 in two adjacent distributed battery cell modules 200 can also be electrically connected, so that the two adjacent distributed battery cell modules 200 can be connected in series through the electrical connection of the two second electrical connection ends 202 in the two adjacent distributed battery cell modules 200.

[0024] Wherein, the first direction F1 can intersect with the second direction F2. For example, the first direction F1 can be perpendicular to the second direction F2.

[0025] Here, one first electrical connector 300 in the battery pack 000 can be connected with the first electrical connection end 201 of two adjacent distributed battery cell modules 200 respectively, that is, one end of the first electrical connector 300 can be connected with one of the two adjacent distributed first electrical connection ends 201, and the other end of the first electrical connector 300 can be connected with the other of the two adjacent distributed first electrical connection ends 201. In this way, the first electrical connection ends 201 of the two adjacent distributed battery cell modules 200 can be connected through one first electrical connector 300, so that the two adjacent distributed battery cell modules 200 can be connected in series.

[0026] The part of the first electrical connector 300 in the battery pack 000 that is connected to the first electrical connection end 201 can be exposed through the first opening K1. In this case, after the plurality of battery cell modules 200 are stacked in the accommodation cavity A, the first electrical connector 300 can be connected to the first electrical connection ends 201 of two adjacent battery cell modules 200 through the first opening K1 in the box 100, so as to realize the series connection between the two adjacent battery cell modules 200.

[0027] One second electrical connector 400 in the battery pack 000 can be connected to the second electrical connection ends 202 of two adjacent battery cell modules 200 respectively, that is, one end of the second electrical connector 400 can be connected to one of the two adjacent second electrical connection ends 202, and the other end of the second electrical connector 400 can be connected to the other of the two adjacent second electrical connection ends 202. In this way, the second electrical connection ends 202 of the two adjacent battery cell modules 200 can be connected through one second electrical connector 400, so as to realize the series connection of the two adjacent battery cell modules 200.

[0028] The part of the second electrical connector 400 in the battery pack 000 that is connected to the second electrical connection end 202 can be exposed through the second opening K2. In this case, after the plurality of battery cell modules 200 are stacked in the accommodation cavity A, the second electrical connector 400 can be connected to the second electrical connection ends 202 of two adjacent battery cell modules 200 through the second opening K2 in the box 100, so as to realize the series connection between the two adjacent battery cell modules 200.

[0029] It should be noted that in the related art, during the installation of the battery pack, the battery cell modules and the copper bars are generally arranged alternately, that is, after the installation of the subsequent battery cell module on the previous battery cell module, the two battery cell modules are generally connected in series through the copper bar. Since the voltage of the plurality of battery cell modules after being connected in series is generally high, if there is an installation error during the operation of the worker, for example, if the worker installs the subsequent battery cell module upside down after the installation of the subsequent battery cell module on the previous battery cell module, it is easy to cause the short circuit of the battery pack and other adverse phenomena, and it may also cause harm to the worker.

[0030] In the embodiments of the present application, since the first opening K1 and the second opening K2 are arranged in the box body 100, the plurality of battery cell modules 200 can be first stacked and arranged in the accommodating cavity A, then the first electrical connection member 300 is connected with the first electrical connection end 201 of two adjacent battery cell modules 200 through the first opening K1 in the box body 100, and the second electrical connection member 400 is connected with the second electrical connection end 202 of two adjacent battery cell modules 200 through the second opening K2 in the box body 100, so as to realize the series connection between the battery cell modules 200.

[0031] It should be noted that for the first battery cell module, the second battery cell module and the third battery cell module adjacent to each other in the plurality of battery cell modules 200, the second battery cell module can be located between the first battery cell module and the third battery cell module. The first electrical connection end 201 of the first battery cell module can be connected with the first electrical connection end 201 of the second battery cell module through a first electrical connection member 300, and the second electrical connection end 202 of the second battery cell module can be connected with the electrical connection end 202 of the third battery cell module through a second electrical connection member 300. In this case, through the cooperation of the first electrical connection member 300 and the second electrical connection member 300, the first battery cell module, the second battery cell module and the third battery cell module can be connected in series.

[0032] In this way, the two battery cell modules 200 are not connected in series after the latter battery cell module 200 is installed on the former battery cell module 200. Instead, the battery cell modules 200 are first stacked and arranged in the accommodating cavity A of the box body 100, and then the battery cell modules 200 stacked and arranged in the accommodating cavity A of the box body 100 are connected in series. In this way, even if the staff installs a certain battery cell module 200 in reverse during the assembly of the battery cell modules 200 in the accommodating cavity A, the battery pack 000 is not prone to short circuit.

[0033] In summary, the battery pack provided by the embodiment of the application comprises a box body, a plurality of battery cell modules, at least one first electric connecting member, and at least one second connecting member. Since the first opening and the second opening are arranged in the box body, the plurality of battery cell modules can be first arranged in the accommodating cavity in a stacked manner, then the first electric connecting member is connected to the first electric connecting end of two adjacent battery cell modules through the first opening in the box body, and the second connecting member is connected to the second electric connecting end of two adjacent battery cell modules through the second opening in the box body, so as to realize the series connection between the battery cell modules. In this way, the two battery cell modules are not connected in series after the latter battery cell module is mounted on the former battery cell module. Instead, the battery cell modules are arranged in the accommodating cavity of the box body in a stacked manner, and then the battery cell modules arranged in the accommodating cavity of the box body in a stacked manner are connected in series. In this way, even if the battery cell modules are assembled in the accommodating cavity and the worker mistakenly assembles a certain battery cell module, the battery pack is not prone to short circuit.

[0034] In the embodiment of the application, referring to FIG. 1, the number of the first openings K1 in the box body 100 can be at least one, and the first electric connecting ends 201 of two adjacent battery cell modules 200 can be exposed through the same first opening K1. The at least one first electric connecting member 300 can correspond to the at least one first opening K1 in the at least one box body 100 one by one, and each first electric connecting member 300 can pass through the corresponding first opening K1 to be connected to the first electric connecting ends 201 of two adjacent battery cell modules 200, so that the two adjacent battery cell modules 200 are connected in series.

[0035] For example, first, after the plurality of battery cell modules 200 are arranged in the accommodating cavity A in a stacked manner, the first electric connecting ends 201 of two adjacent battery cell modules 200 can be exposed through the same first opening K1 in the box body 100, and then the first electric connecting member 300 can pass through the corresponding first opening K1 in the box body 100 to be connected to the first electric connecting ends 201 of two adjacent battery cell modules 200, so that the two adjacent battery cell modules 200 can be connected in series.

[0036] In the application, referring to FIG. 3, FIG. 3 is a structural schematic view of a first electric connecting member provided by the embodiment of the application. The first electric connecting member 300 in the battery pack 000 can comprise a first conducting part 301, a first insulating sleeve 302, and two first connecting pins 303.

[0037] The first conducting part 301 in the first electrical connecting piece 300 can be connected with two first connecting pins 303 respectively. That is, the first end of the first conducting part 301 can be connected with one first connecting pin 303, and the second end of the first conducting part 301 can be connected with another first connecting pin 303. In this way, the electrical conduction between the two first connecting pins 303 can be realized through the conduction of the first conducting part 301. For example, the materials of the first conducting part 301 and the two first connecting pins 303 in the first electrical connecting piece 300 can include copper.

[0038] The first insulating sleeve 302 in the first electrical connecting piece 300 can be sleeved on the first conducting part 301. It should be noted that the worker needs to hold the first electrical connecting piece 300 to connect the first electrical connecting piece 300 with the first electrical connecting ends 201 of the two adjacent battery cell modules 200. In this case, the worker can hold the first insulating sleeve 302 in the first electrical connecting piece 300 to ensure that the first insulating sleeve 302 can provide insulation protection, so as to prevent the worker from being injured during the operation, thereby improving the safety of the worker when assembling the battery pack 000.

[0039] Here, the two first connecting pins 303 in the first electrical connecting piece 300 in the battery pack 000 can be connected with the first electrical connecting ends 201 of the two adjacent battery cell modules 200 respectively. For example, the two first connecting pins 303 in the first electrical connecting piece 300 can be fixedly connected with the first electrical connecting ends 201 of the two adjacent battery cell modules 200 by screws. For example, the first connecting pin 303 can have a first connecting hole, and the first electrical connecting end 201 of the battery cell module 200 can have a second connecting hole corresponding to the first connecting hole. In this way, the screw can pass through the first connecting hole and the second connecting hole to fixedly connect the first connecting pin 303 with the first electrical connecting end 201.

[0040] It should be noted that the worker can hold the first electrical connecting piece 300 and pass the first electrical connecting piece 300 through the corresponding first opening K1 in the box body 100, and then use the screw to fixedly connect the two first connecting pins 303 in the first electrical connecting piece 300 with the first electrical connecting ends 201 of the two adjacent battery cell modules 200.

[0041] In this way, the two adjacent battery cell modules 200 can be connected in series through the connection of the two first connecting pins 303 in the first electrical connecting piece 300 with the first electrical connecting ends 201 of the two adjacent battery cell modules 200.

[0042] Optionally, as shown in FIG. 1 and FIG. 3, in the first electrical connector 300, the first conducting part 301 can protrude towards the direction of the first opening K1 relative to the two first connecting pins 303. In this way, it can be ensured that the first conducting part 301 does not affect the connection between the first connecting pin 303 and the first electrical connection end 201 during the process of connecting the two first connecting pins 303 in the first electrical connector 300 with the first electrical connection end 201 of the two adjacently distributed battery cell modules 200, thereby ensuring that the connection between the first connecting pin 303 and the first electrical connection end 201 is more stable.

[0043] In the embodiments of the present application, please refer to FIG. 4 and FIG. 5, FIG. 4 is a partial structural schematic diagram of a battery pack provided by the embodiments of the present application, and FIG. 5 is a partial structural schematic diagram of another battery pack provided by the embodiments of the present application. The second electrical connector 400 in the battery pack 000 can be fixed in the accommodation cavity A, and the two ends of the second electrical connector 400 can have two second connecting pins 401.

[0044] It should be noted that the second electrical connector 400 in the battery pack 000 can also include a second conducting part and a second insulating sleeve. The second conducting part in the second electrical connector 400 can be connected with the two second connecting pins 401 respectively. That is, the first end of the second conducting part can be connected with one of the second connecting pins 401, and the second end of the second conducting part can be connected with the other second connecting pin 401. In this way, the electrical conduction between the two second connecting pins 401 can be realized through the conducting effect of the second conducting part. For example, the materials of the second conducting part and the two first connecting pins 401 in the second electrical connector 400 can include copper.

[0045] Here, the second insulating sleeve in the second electrical connector 400 can be sleeved on the second conducting part, so that the second electrical connector 400 can be insulated and protected by the second insulating sleeve.

[0046] Among them, the two second connecting pins 401 in the second electrical connector 400 can be exposed through the second opening K2, and the two second connecting pins 401 can correspond to the two adjacently distributed battery cell modules 200 respectively, and each second connecting pin 401 can be connected with the second electrical connection end 202 of the corresponding battery cell module 200. For example, the two second connecting pins 401 in the second electrical connector 400 can be fixedly connected with the second electrical connection end 202 of the two adjacently distributed battery cell modules 200 through screws. For example, the second connecting pin 401 can have a third connecting hole, and the second electrical connection end 202 of the battery cell module 200 can have a fourth connecting hole corresponding to the third connecting hole, so that the screw can pass through the third connecting hole and the fourth connecting hole to fixedly connect the second connecting pin 401 with the second electrical connection end 202.

[0047] In this case, since the second electrical connecting member 400 can be fixed in the accommodation cavity A, and the two second connecting pins 401 in the second electrical connecting member 400 can be exposed through the second opening K2, after the plurality of battery cell modules 200 are stacked in the accommodation cavities A in the box body 100, the two second connecting pins 401 in the second electrical connecting member 400 can correspond to the second electrical connecting ends 202 of the two adjacent battery cell modules 200. In this way, the worker can pass through the second opening K2 in the box body 100, and use a screw to fixedly connect the two second connecting pins 401 in the second electrical connecting member 400 and the second electrical connecting ends 202 of the two adjacent battery cell modules 200.

[0048] In this way, through the connection of the two second connecting pins 401 in the second electrical connecting member 400 and the second electrical connecting ends 202 of the two adjacent battery cell modules 200, the two adjacent battery cell modules 200 can be connected in series.

[0049] In the embodiment of the present application, as shown in FIG. 4, the number of the second openings K2 in the box body 100 can be at least two. Among them, the at least two second openings K2 in the box body 100 can correspond to the second connecting pins 401 in the at least two second electrical connecting members 400 one by one, and each second connecting pin 401 can be exposed through a corresponding second opening K2. That is, the at least two second connecting pins 401 cannot correspond to the same second opening K2 in the same box body 100 at the same time, so that the part of the battery cell module 200 exposed through the second opening K2 in the box body 100 can be reduced, thereby further improving the safety of assembling the battery pack 000.

[0050] In the embodiment of the present application, please refer to FIG. 4 and FIG. 5, the box body 100 in the battery pack 000 can also have two third openings K3 communicating with the accommodation cavities A. Among them, the second openings K2 in the box body 100 can be distributed between the two third openings K3 in the first direction F1.

[0051] The battery pack 000 can also include two third electrical connecting members 500, here, the two third electrical connecting members 500 can correspond to the two third openings K3 in the box body 100 one by one, and can correspond to the two outermost battery cell modules 200 among the plurality of battery cell modules 200 one by one.

[0052] It should be noted that the third electrical connector 500 in the battery pack 000 can be fixed in the accommodation cavity A, and the third electrical connector 500 can include a third conducting part, a third insulating sleeve, and two third connecting pins. The third conducting part in the third electrical connector 500 can be connected with the two third connecting pins respectively. That is, the first end of the third conducting part can be connected with one third connecting pin, and the second end of the third conducting part can be connected with the other third connecting pin. In this way, the electrical conduction between the two third connecting pins can be realized through the conduction of the third conducting part. For example, the materials of the third conducting part and the two third connecting pins in the third electrical connector 500 can include copper.

[0053] Here, the third insulating sleeve in the third electrical connector 500 can be sleeved on the third conducting part, so that the third electrical connector 500 can be insulated and protected by the third insulating sleeve.

[0054] Among them, each third electrical connector 500 in the battery pack 000 can be connected with the second electrical connection end 202 of the corresponding battery cell module 200. Here, each third electrical connector 500 in the battery pack 000 can be connected with the second electrical connection end 202 of the corresponding battery cell module 200 through the third connecting pin in the third electrical connector 500. For example, the two third connecting pins in the third electrical connector 500 can be fixedly connected with the second electrical connection end 202 of the corresponding battery cell module 200 through screws. For example, the third connecting pin can have a fifth connecting hole, and the second electrical connection end 202 of the battery cell module 200 can have a sixth connecting hole corresponding to the fifth connecting hole, so that the screw can pass through the fifth connecting hole and the sixth connecting hole to fixedly connect the third connecting pin with the second electrical connection end 202.

[0055] Here, the part of each third electrical connector 500 connected with the second electrical connection end 202 can be exposed through the corresponding third opening K3. Therefore, after the plurality of battery cell modules 200 are stacked and arranged in the accommodation cavity A in the box body 100, the two third connecting pins in the third electrical connector 500 can correspond to the second electrical connection end 202 of the corresponding battery cell module 200. In this way, the worker can pass through the third opening K3 in the box body 100, and use the screw to fixedly connect the two third connecting pins in the third electrical connector 500 with the second electrical connection end 202 of the corresponding battery cell module 200.

[0056] It should be noted that the part of each third electrical connector 500 in the battery pack 000 connected with the second electrical connection end 202 in the corresponding battery cell module 200 needs to be connected with the vehicle body subsequently. That is, one third electrical connector 500 in the battery pack 000 can act as a positive electrode, and the other third electrical connector 500 in the battery pack 000 can act as a negative electrode.

[0057] In the embodiments of the present application, referring to FIG. 6, FIG. 7 and FIG. 8, FIG. 6 is a schematic diagram of a partial structure of another battery pack provided by the embodiments of the present application, FIG. 7 is a schematic diagram of a partial structure of still another battery pack provided by the embodiments of the present application, and FIG. 8 is a schematic diagram of a partial structure of a battery pack provided by another embodiment of the present application. The box 100 in the battery pack 000 can also have a fourth opening K4 in communication with the accommodating cavity A. Here, the first openings K1 in the box 100 can be respectively distributed on two sides of the box 100 in the third direction F3 as the fourth opening K4. The third direction F3 can intersect the first direction F1 and can intersect the second direction F2. For example, the third direction F3 can be perpendicular to the first direction F1 and can be perpendicular to the second direction F2.

[0058] As shown in FIG. 7 and FIG. 8, each of the battery cell modules 200 in the battery pack 000 can also have a first wiring terminal 203 and a second wiring terminal 204 oppositely arranged in the third direction F3. Here, the first wiring terminal 203 in the battery cell module 200 can be used to receive the temperature information and the battery cell voltage information collected by the sensor. The second wiring terminal 204 in the battery cell module 200 needs to be connected to the battery management system in the future to transmit the collected temperature information and battery cell voltage information to the battery management system.

[0059] The battery pack 000 can also include a wire harness group 600 fixed in the accommodating cavity A in the box 100. Here, the wire harness group 600 can have a plurality of third wiring terminals 601 and a plurality of fourth wiring terminals 602, and the plurality of third wiring terminals 601 and the plurality of fourth wiring terminals 602 can each correspond to one of the plurality of battery cell modules 200.

[0060] Each of the third wiring terminals 601 in the wire harness group 600 can be connected to the first wiring terminal 203 of the corresponding battery cell module 200. For example, each of the third wiring terminals 601 in the wire harness group 600 can be plugged together with the first wiring terminal 203 of the corresponding battery cell module 200. For example, the first wiring terminal 203 of the battery cell module 200 can have a female connector, and the third wiring terminal 601 in the wire harness group 600 can be a male connector, so as to ensure that each of the third wiring terminals 601 in the wire harness group 600 can be normally plugged together with the first wiring terminal 203 of the corresponding battery cell module 200.

[0061] Here, the connected third wiring terminal 601 and the first wiring terminal 203 can be exposed through the first opening K1 in the box 100. In this case, the worker can plug the third wiring terminal 601 in the wire harness group 600 and the first wiring terminal 203 of the battery cell module 200 together through the first opening K1 in the box 100.

[0062] Each fourth connecting terminal 602 in the wire harness group 600 can be connected with the second connecting terminal 204 of the corresponding battery cell module 200. For example, each fourth connecting terminal 602 in the wire harness group 600 can be plugged with the second connecting terminal 204 of the corresponding battery cell module 200. For example, the second connecting terminal 204 of the battery cell module 200 can have a female connector, and the fourth connecting terminal 602 in the wire harness group 600 can be a male connector, so as to ensure that each fourth connecting terminal 602 in the wire harness group 600 can be normally plugged with the second connecting terminal 204 of the corresponding battery cell module 200.

[0063] Here, the connected fourth connecting terminal 602 and the second connecting terminal 204 can be exposed through the fourth opening K4 in the box body 100. In this case, the worker can plug the fourth connecting terminal 602 in the wire harness group 600 with the second connecting terminal 204 of the battery cell module 200 through the fourth opening K4 in the box body 100.

[0064] In the present application, please refer to FIG. 9 and FIG. 10, FIG. 9 is a structural schematic diagram of another battery cell module provided by the embodiment of the present application, and FIG. 10 is a structural schematic diagram of still another battery cell module provided by the embodiment of the present application. The battery pack 000 can further include a first cover plate 700, a second cover plate 800 and a third cover plate 900.

[0065] Here, the first cover plate 700 in the battery pack 000 can be connected with the box body 100, and can cover the first opening K1 in the box body 100. In this way, the first cover plate 700 in the battery pack 000 can prevent dust and water vapor from entering the inside of the battery pack 000 from the first opening K1 in the box body 100.

[0066] The second cover plate 800 in the battery pack 000 can be connected with the box body 100, and can cover the second opening K2 in the box body 100. In this way, the second cover plate 800 in the battery pack 000 can prevent dust and water vapor from entering the inside of the battery pack 000 from the second opening K2 in the box body 100.

[0067] The third cover plate 900 in the battery pack 000 can be connected with the box body 100, and can cover the fourth opening K4 in the box body 100. In this way, the third cover plate 900 in the battery pack 000 can prevent dust and water vapor from entering the inside of the battery pack 000 from the fourth opening K4 in the box body 100.

[0068] In summary, the battery pack provided by the embodiments of the present application comprises a box body, a plurality of battery cell modules, at least one first electric connecting member and at least one second connecting member. Since the box body is provided with a first opening and a second opening, the plurality of battery cell modules can be first stacked and arranged in the accommodating cavity, then the first electric connecting member is connected with the first electric connecting ends of two adjacent battery cell modules through the first opening in the box body, and the second connecting member is connected with the second electric connecting ends of two adjacent battery cell modules through the second opening in the box body, so as to realize the series connection between the battery cell modules. In this way, the two battery cell modules are not connected in series after the latter battery cell module is mounted on the former battery cell module. Instead, the battery cell modules are first stacked and arranged in the accommodating cavity of the box body, and then the battery cell modules stacked and arranged in the accommodating cavity of the box body are connected in series. In this way, even if the battery cell modules are assembled in the accommodating cavity and the staff reversely assembles a certain battery cell module, the battery pack is not prone to short circuit.

[0069] The embodiments of the present application also provide a vehicle, which can be a hybrid vehicle, a pure oil vehicle or a range-extended electric vehicle. The vehicle comprises a vehicle body and a battery pack mounted in the vehicle body, and the battery pack is any of the above battery packs.

Claims

1. A battery pack comprising: The box (100), a plurality of battery cell modules (200), at least one first electrical connector (300) and at least one second connector (400); The box (100) has a receiving cavity (A), and a first opening (K1) and a second opening (K2) in communication with the receiving cavity (A); The plurality of battery cell modules (200) are arranged in a first direction (F1) in the receiving cavity (A), each of the battery cell modules (200) has a first electrical connection end (201) and a second electrical connection end (202) arranged oppositely in a second direction (F2), and the first direction (F1) intersects the second direction (F2); One of the first electrical connectors (300) is connected to the first electrical connection end (201) of two adjacent battery cell modules (200), respectively, and the part of the first electrical connector (300) connected to the first electrical connection end (201) is exposed through the first opening (K1); One of the second electrical connectors (400) is connected to the second electrical connection end (202) of two adjacent battery cell modules (200), respectively, and the part of the second electrical connector (400) connected to the second electrical connection end (202) is exposed through the second opening (K2).

2. The battery pack of claim 1, wherein, The number of the first openings (K1) is at least one; the first electrical connection ends (201) of two adjacent battery cell modules (200) are exposed through the same first opening (K1); The at least one first electrical connector (300) corresponds to at least one first opening (K1), and each first electrical connector (300) passes through the corresponding first opening (K1) to be connected to the first electrical connection end (201) of two adjacent battery cell modules (200), respectively.

3. The battery pack of claim 2, wherein, The first electrical connector (300) comprises a first conducting part (301), a first insulating sleeve (302) and two first connecting pins (303); The first conducting part (301) is connected to the two first connecting pins (303), respectively, and the first insulating sleeve (302) is sleeved on the first conducting part (301); The two first connecting pins (303) of the first electrical connector (300) are connected to the first electrical connection end (201) of two adjacent battery cell modules (200), respectively.

4. The battery pack of claim 1, wherein, The second connector (400) is fixed in the receiving cavity (A), and both ends of the second connector (400) have two second connecting pins (401), both of which are exposed through the second opening (K2), and the two second connecting pins (401) correspond to two adjacent battery cell modules (200), respectively, and each second connecting pin (401) is connected to the second electrical connection end (202) of the corresponding battery cell module (200).

5. The battery pack of claim 4, wherein, The second opening (K2) is at least two in number, and the at least two second openings (K2) correspond to the at least two second connecting pins (401) one by one, and each second connecting pin (401) is exposed through a corresponding second opening (K2).

6. The battery pack of any one of claims 1 to 5, wherein, The box (100) further has two third openings (K3) in communication with the accommodating cavity (A), and the second openings (K2) are distributed between the two third openings (K3) in the first direction (F1). The battery pack further comprises two third electric connecting members (500) corresponding to the two third openings (K3) and corresponding to the two outermost battery cell modules (200) among the plurality of battery cell modules (200). Each third electric connecting member (500) is connected to the second electric connecting end (202) of the corresponding battery cell module (200), and the part of each third electric connecting member (500) connected to the second electric connecting end (202) is exposed through the corresponding third opening (K3).

7. The battery pack of any one of claims 1 to 5, wherein, The box further has a fourth opening (K4) in communication with the accommodating cavity (A), and the first opening (K1) and the fourth opening (K4) are respectively distributed on two sides of the box (100) in a third direction (F3); the third direction (F3) intersects the first direction (F1) and the second direction (F2); Each battery cell module (200) further has a first wiring end (203) and a second wiring end (204) oppositely arranged in the third direction (F3); The battery pack further comprises a wire harness group (600) fixed in the accommodating cavity (A), the wire harness group (600) has a plurality of third wiring ends (601) and a plurality of fourth wiring ends (602), and the plurality of third wiring ends (601) and the plurality of fourth wiring ends (602) correspond to the plurality of battery cell modules (200) one by one; Each third wiring end (601) is connected to the first wiring end (203) of the corresponding battery cell module (200), and the connected third wiring end (601) and first wiring end (203) are exposed through the first opening (K1); each fourth wiring end (602) is connected to the second wiring end (204) of the corresponding battery cell module (200), and the connected fourth wiring end (602) and second wiring end (204) are exposed through the fourth opening (K4).

8. The battery pack of claim 7, wherein, The battery pack further comprises a first cover plate (700), a second cover plate (800) and a third cover plate (900); The first cover plate (700) is connected to the box (100) and covers the first opening (K1); the second cover plate (800) is connected to the box (100) and covers the second opening (K2); and the third cover plate (900) is connected to the box (100) and covers the fourth opening (K4).

9. The battery pack of any one of claims 1 to 5, wherein, For the first, second and third battery cell modules (200) adjacently distributed in the plurality of battery cell modules, the second battery cell module is located between the first and third battery cell modules, the first electrical connection end (201) of the first battery cell module is connected with the first electrical connection end (201) of the second battery cell module through one first electrical connection member (300), and the second electrical connection end (202) of the second battery cell module is connected with the electrical connection end (202) of the third battery cell module through one second electrical connection member (300).

10. A vehicle comprising: A vehicle body, and a battery pack mounted in the vehicle body, the battery pack being any one of claims 1 to 9.

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