Battery pack and vehicle

Abstract

The utility model discloses a battery pack and a vehicle, and belongs to the technical field of batteries. The battery pack comprises a box body, a plurality of battery cell modules, at least one first electric connecting piece and at least one second electric connecting piece, the first opening and the second opening are formed in the box body, so that a plurality of battery cell modules can be stacked in the accommodating cavity, and then the first electric connecting piece 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 electric connecting piece is connected with the second electric connecting ends of the two adjacent battery cell modules through a second opening in the box body, so that the battery cell modules are connected in series. Therefore, even if the condition that a certain battery cell module is reversely assembled by a worker exists in the process of assembling the battery cell module in the accommodating cavity, the bad phenomenon of short circuit of the battery pack is not easy to occur.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and in particular to a battery pack and a vehicle. Background Art

[0002] With the development of the economy and the advancement of science and technology, electric vehicles, outdoor power supplies or other large power-consuming products all need long power supply life. As an important energy storage carrier, battery packs have been continuously developed and innovated in various fields in recent years.

[0003] A battery pack typically includes a box body and multiple battery cell modules located within the box body. The multiple battery cell modules are typically assembled in series and parallel via copper busbars.

[0004] However, during battery pack installation, the cell modules and copper busbars are typically arranged alternately. This means that after each cell module is installed on top of the previous one, the two modules are connected in series via the copper busbars. Because the voltage of multiple cells connected in series is typically higher, any installation error can easily lead to problems such as a short circuit in the battery pack, potentially causing personal injury to the installer. Utility Model Content

[0005] The present application provides a battery pack and a vehicle. This solves the problem of low battery pack installation reliability. The technical solution is as follows:

[0006] In one aspect, a battery pack is provided, comprising: a box, a plurality of battery cell modules, at least one first electrical connector, and at least one second electrical connector;

[0007] The box body has a receiving cavity, and a first opening and a second opening communicating with the receiving cavity;

[0008] The plurality of battery cell modules are stacked in the accommodating cavity along a first direction, each of the battery cell modules 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;

[0009] One of the first electrical connectors is respectively connected to the first electrical connection ends of two adjacently distributed battery cell modules, and a portion of the first electrical connector connected to the first electrical connection ends is exposed through the first opening;

[0010] One of the second electrical connectors is respectively connected to the second electrical connection ends of two adjacently distributed battery core modules, and a portion of the second electrical connector connected to the second electrical connection end is exposed through the second opening.

[0011] Optionally, the number of the first opening is at least one; the first electrical connection ends of two adjacently distributed battery cell modules are exposed through the same first opening;

[0012] The at least one first electrical connector corresponds to the at least one first opening one by one, and each first electrical connector passes through the corresponding first opening to be connected to the first electrical connection ends of two adjacently distributed battery cell modules respectively.

[0013] Optionally, the first electrical connector includes: a first conductive portion, a first insulating sleeve, and two first connecting pins;

[0014] The first conducting portion is connected to the two first connecting pins respectively, and the first insulating sleeve is sleeved on the first conducting portion;

[0015] The two first connecting pins in the first electrical connector are respectively connected to the first electrical connecting ends of two adjacently distributed battery cell modules.

[0016] Optionally, the second electrical connector is fixed in the accommodating cavity, and two second connecting pins are provided at both ends of the second electrical connector, and the two second connecting pins are exposed through the second opening. The two second connecting pins respectively correspond to two adjacently distributed battery cell modules, and each second connecting pin is connected to the second electrical connection end of the corresponding battery cell module.

[0017] Optionally, the number of the second openings is at least two, and at least two of the second openings correspond one-to-one to at least two of the second connecting pins, and each of the second connecting pins is exposed through a corresponding second opening.

[0018] Optionally, the box body further has two third openings communicating with the accommodating cavity, and the second openings are distributed between the two third openings in the first direction;

[0019] The battery pack further includes: two third electrical connectors, the two third electrical connectors corresponding one-to-one to the two third openings and corresponding one-to-one to the two outermost battery modules of the plurality of battery modules;

[0020] Each of the third electrical connectors is connected to the second electrical connection end of the corresponding battery cell module, and a portion of each of the third electrical connectors that is connected to the second electrical connection end is exposed through the corresponding third opening.

[0021] Optionally, the box body further has a fourth opening communicating with the accommodating cavity, and the first opening and the fourth opening are respectively distributed on both sides of the box body in a third direction; the third direction intersects with the first direction and the second direction;

[0022] Each of the battery cell modules further comprises a first terminal and a second terminal arranged opposite to each other in the third direction;

[0023] The battery pack further includes: a wiring harness group fixed in the accommodating cavity, the wiring harness group having a plurality of third terminals and a plurality of fourth terminals, the plurality of third terminals and the plurality of fourth terminals corresponding one-to-one to the plurality of battery cell modules;

[0024] Wherein, each of the third terminals is connected to the first terminal of the corresponding battery cell module, and the connected third terminal and the first terminal are exposed through the first opening; each of the fourth terminals is connected to the second terminal of the corresponding battery cell module, and the connected fourth terminal and the second terminal are exposed through the fourth opening.

[0025] Optionally, the battery pack further comprises: a first cover plate, a second cover plate and a third cover plate;

[0026] The first covering plate is connected to the box body and covers the first opening; the second covering plate is connected to the box body and covers the second opening; the third covering plate is connected to the box body and covers the fourth opening.

[0027] Optionally, for the first battery cell module, the second battery cell module and the third battery cell module that are adjacently distributed among the multiple battery cell modules, the second battery cell module is located between the first battery cell module and the third battery cell module, the first electrical connection end of the first battery cell module is connected to the first electrical connection end of the second battery cell module through a first electrical connector, and the second electrical connection end of the second battery cell module is connected to the electrical connection end of the third battery cell module through a second electrical connector.

[0028] On the other hand, a vehicle is provided, comprising: a vehicle body, and a battery pack installed in the vehicle body, wherein the battery pack is any of the battery packs described above.

[0029] The beneficial effects of the technical solutions provided in the embodiments of the present application include at least:

[0030] Since the box body is provided with a first opening and a second opening, a plurality of battery modules can be stacked in the accommodating cavity first, and then the first electrical connector is connected to the first electrical connection ends of two adjacent battery modules through the first opening in the box body, and the second electrical connector is connected to the second electrical connection ends of two adjacent battery modules through the second opening in the box body, so as to realize the series connection between each battery module. In this way, the two battery modules are not connected in series after the latter battery module is installed on the former battery module. Instead, the battery modules are first stacked in the accommodating cavity of the box body, and then the battery modules stacked in the accommodating cavity of the box body are connected in series. In this way, even if the staff assembles a battery module upside down during the assembly of the battery modules in the accommodating cavity, the battery pack is not prone to the adverse phenomenon of short circuit. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0032] Figure 1 This is a schematic structural diagram of a battery pack provided in an embodiment of the present application;

[0033] Figure 2 This is a schematic structural diagram of a battery cell module provided in an embodiment of the present application;

[0034] Figure 3 is a structural schematic diagram of a first electrical connector provided in an embodiment of the present application;

[0035] Figure 4 is a schematic diagram of a partial structure of a battery pack provided in an embodiment of the present application;

[0036] Figure 5 is a partial structural diagram of another battery pack provided in an embodiment of the present application;

[0037] Figure 6 This is a partial structural diagram of another battery pack provided in an embodiment of the present application;

[0038] Figure 7 is a partial structural diagram of another battery pack provided in an embodiment of the present application;

[0039] Figure 8 is a partial structural diagram of a battery pack provided in another embodiment of the present application;

[0040] Figure 9This is a schematic structural diagram of another battery cell module provided in an embodiment of the present application;

[0041] Figure 10 This is a structural diagram of another battery cell module provided in an embodiment of the present application. DETAILED DESCRIPTION

[0042] In order to make the objectives, technical solutions and advantages of this application clearer, the implementation methods of this application will be further described in detail below with reference to the accompanying drawings.

[0043] This application embodiment provides a battery pack, please refer to Figure 1 and Figure 2 , Figure 1 is a structural diagram of a battery pack provided in an embodiment of the present application, Figure 2 The battery pack 000 may include: a housing 100 , a plurality of battery modules 200 , at least one first electrical connector 300 , and at least one second electrical connector 400 .

[0044] The box body 100 in the battery pack 000 may have an accommodating cavity A, and a first opening K1 and a second opening K2 communicating with the accommodating cavity A.

[0045] The multiple cell modules 200 in the battery pack 000 may be stacked along the first direction F1 in the accommodation cavity A. Each cell module 200 may have a first electrical connection end 201 and a second electrical connection end 202 disposed opposite to each other in the second direction F2.

[0046] Here, the two first electrical connection ends 201 of two adjacently distributed battery cell modules 200 can be electrically connected. In this way, the two adjacently distributed battery cell modules 200 can be connected in series through the electrical connection of the two first electrical connection ends 201 of the two adjacently distributed battery cell modules 200. Similarly, the two second electrical connection ends 202 of the two adjacently distributed battery cell modules 200 can also be electrically connected. In this way, the two adjacently distributed battery cell modules 200 can be connected in series through the electrical connection of the two second electrical connection ends 202 of the two adjacently distributed battery cell modules 200.

[0047] The first direction F1 may intersect with the second direction F2. For example, the first direction F1 may be perpendicular to the second direction F2.

[0048] Here, one first electrical connector 300 in the battery pack 000 can be connected to the first electrical connection ends 201 of two adjacently distributed battery cell modules 200, that is, one end of the first electrical connector 300 can be connected to one of the two adjacently distributed first electrical connection ends 201, and the other end of the first electrical connector 300 can be connected to the other of the two adjacently distributed first electrical connection ends 201. In this way, the first electrical connection ends 201 of two adjacently distributed battery cell modules 200 can be connected through one first electrical connector 300, so that the two adjacently distributed battery cell modules 200 can be connected in series.

[0049] The portion 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, multiple battery modules 200 can be stacked in the accommodating cavity A, and then the first electrical connector 300 can be connected to the first electrical connection ends 201 of two adjacent battery modules 200 through the first opening K1 in the box 100 to achieve series connection between the two adjacent battery modules 200.

[0050] 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 two adjacent battery cell modules 200 can be connected via one second electrical connector 400, thereby connecting the two adjacent battery cell modules 200 in series.

[0051] The portion 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, multiple battery modules 200 can be stacked in the accommodating cavity A, and then the second electrical connector 400 can be connected to the second electrical connection ends 202 of two adjacent battery modules 200 through the second opening K2 in the box 100 to achieve series connection between the two adjacent battery modules 200.

[0052] It should be noted that in the relevant technology, during the installation of the battery pack, the battery modules and copper busbars are generally arranged alternately. That is, after the latter battery module is installed on the previous battery module, the two battery modules are usually connected in series through the copper busbar. Since the voltage of multiple battery modules after being connected in series is usually large, if the staff makes an installation error during the operation, for example, after the latter battery module is installed on the previous battery module, if the staff installs the latter battery module upside down, it is very easy to cause adverse phenomena such as short circuit in the battery pack, and may also cause harm to the staff.

[0053] In the embodiment of the present application, since a first opening K1 and a second opening K2 are provided in the box body 100, a plurality of battery cell modules 200 can be stacked and arranged in the accommodating cavity A first, and then 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 body 100, and 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 body 100, so as to realize the series connection between each battery cell module 200.

[0054] It should be noted that, for the adjacently distributed first battery cell module, second battery cell module and third battery cell module 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. Specifically, the first electrical connection end 201 of the first battery cell module can be connected to the first electrical connection end 201 of the second battery cell module through a first electrical connector 300, and the second electrical connection end 202 of the second battery cell module can be connected to the electrical connection end 202 of the third battery cell module through a second electrical connector 400. In this case, through the cooperation of the first electrical connector 300 and the second electrical connector 400, it is possible to ensure that the first battery cell module, the second battery cell module and the third battery cell module are connected in series.

[0055] In this way, rather than installing the subsequent cell module 200 onto the previous one and then connecting the two cell modules 200 in series, the cell modules 200 are first stacked within the accommodating cavity A of the housing 100, and then the stacked cell modules 200 within the accommodating cavity A of the housing 100 are connected in series. This way, even if a worker installs a cell module 200 upside down during assembly within the accommodating cavity A, the battery pack 000 is less likely to suffer a short circuit.

[0056] In summary, an embodiment of the present application provides a battery pack, comprising: a case, a plurality of battery modules, at least one first electrical connector, and at least one second electrical connector. Since a first opening and a second opening are provided in the case, a plurality of battery modules can be stacked in a receiving cavity first, and then the first electrical connector is connected to the first electrical connection ends of two adjacent battery modules through the first opening in the case, and the second electrical connector is connected to the second electrical connection ends of two adjacent battery modules through the second opening in the case, so as to realize the series connection between each battery module. In this way, the two battery modules are not connected in series after the latter battery module is installed on the former battery module. Instead, the battery modules are first stacked in the receiving cavity of the case, and then the battery modules stacked in the receiving cavity of the case are connected in series. In this way, even if a staff member assembles a battery module upside down during the assembly of the battery module in the receiving cavity, the battery pack is not prone to the adverse phenomenon of short circuit.

[0057] In the examples of this application, please refer to Figure 1 The number of first openings K1 in the housing 100 can be at least one, and the first electrical connection ends 201 of two adjacent battery modules 200 can be exposed through the same first opening K1. At least one first electrical connector 300 can correspond one-to-one with at least one first opening K1 in the housing 100. Each first electrical connector 300 can pass through the corresponding first opening K1 to connect to the first electrical connection ends 201 of two adjacent battery modules 200, thereby connecting the two adjacent battery modules 200 in series.

[0058] For example, first, after a plurality of battery cell modules 200 are stacked in the accommodating cavity A, the first electrical connection ends 201 of two adjacently distributed battery cell modules 200 can be exposed through the same first opening K1 in the box body 100. Thereafter, the first electrical connector 300 can be passed through the corresponding first opening K1 in the box body 100 to be connected to the first electrical connection ends 201 of the two adjacently distributed battery cell modules 200, so that the two adjacently distributed battery cell modules 200 can be connected in series.

[0059] In this application, please refer to Figure 3 , Figure 3 FIG. 3 is a schematic structural diagram of a first electrical connector provided in an embodiment of the present application. The first electrical connector 300 in the battery pack 000 may include: a first conductive portion 301 , a first insulating sleeve 302 , and two first connecting pins 303 .

[0060] The first conductive portion 301 in the first electrical connector 300 can be connected to two first connecting pins 303, respectively. That is, the first end of the first conductive portion 301 can be connected to one first connecting pin 303, and the second end of the first conductive portion 301 can be connected to the other first connecting pin 303. In this way, the conductive function of the first conductive portion 301 can provide electrical continuity between the two first connecting pins 303. For example, the material of the first conductive portion 301 and the two first connecting pins 303 in the first electrical connector 300 can include copper.

[0061] The first insulating sleeve 302 in the first electrical connector 300 can be sleeved on the first conductive portion 301. It should be noted that the staff needs to hold the first electrical connector 300 to connect the first electrical connector 300 to the first electrical connection ends 201 of two adjacent battery cell modules 200. In this case, the staff can hold the first insulating sleeve 302 in the first electrical connector 300 to ensure that the first insulating sleeve 302 can provide insulation protection, thereby ensuring that the staff is not easily injured during the operation process, thereby improving the safety of the staff when assembling the battery pack 000.

[0062] Here, the two first connection pins 303 in the first electrical connector 300 in the battery pack 000 can be respectively connected to the first electrical connection ends 201 of two adjacently distributed battery cell modules 200. For example, the two first connection pins 303 in the first electrical connector 300 can be fixedly connected to the first electrical connection ends 201 of two adjacently distributed battery cell modules 200 by screws. For example, the first connection pin 303 can have a first connection hole, and the first electrical connection end 201 of the battery cell module 200 can have a second connection hole corresponding to the first connection hole. In this way, the screw can pass through the first connection hole and the second connection hole to fix the first connection pin 303 to the first electrical connection end 201.

[0063] It should be noted that the staff can hold the first electrical connector 300, and after passing the first electrical connector 300 through the corresponding first opening K1 in the box body 100, use screws to fix the two first connecting pins 303 in the first electrical connector 300 to the first electrical connection ends 201 of two adjacently distributed battery cell modules 200.

[0064] In this way, the two adjacently distributed battery cell modules 200 can be connected in series through the connection between the two first connecting pins 303 in the first electrical connector 300 and the first electrical connection ends 201 of the two adjacently distributed battery cell modules 200.

[0065] Optional, such as Figure 1 and Figure 3As shown, in the first electrical connector 300, the first conductive portion 301 can protrude toward the first opening K1 relative to the two first connecting pins 303. This ensures that during the connection between the two first connecting pins 303 in the first electrical connector 300 and the first electrical connecting ends 201 of two adjacent battery cell modules 200, the first conductive portion 301 will not affect the connection between the first connecting pins 303 and the first electrical connecting ends 201, thereby ensuring a higher stability of the connection between the first connecting pins 303 and the first electrical connecting ends 201.

[0066] In the examples of this application, please refer to Figure 4 and Figure 5 , Figure 4 is a partial structural diagram of a battery pack provided in an embodiment of the present application, Figure 5 Schematic diagram of a partial structure of another battery pack provided by an embodiment of the present application. The second electrical connector 400 in the battery pack 000 can be fixed in the accommodating cavity A, and two second connecting pins 401 can be provided at both ends of the second electrical connector 400.

[0067] It should be noted that the second electrical connector 400 in the battery pack 000 may further include: a second conductive portion and a second insulating sleeve. The second conductive portion in the second electrical connector 400 may be connected to the two second connection pins 401 respectively. That is, the first end of the second conductive portion may be connected to one second connection pin 401, and the second end of the second conductive portion may be connected to another second connection pin 401. In this way, the electrical conduction between the two second connection pins 401 may be achieved through the conductive effect of the second conductive portion. For example, the material of the second conductive portion and the two first connection pins 401 in the second electrical connector 400 may include: metallic copper.

[0068] Here, the second insulating sleeve in the second electrical connector 400 may be sleeved on the second conductive portion, so that the second electrical connector 400 may be insulated and protected by the second insulating sleeve.

[0069] The two second connection pins 401 in the second electrical connector 400 can be exposed through the second opening K2, and the two second connection pins 401 can respectively correspond to two adjacently distributed battery cell modules 200, and each second connection pin 401 can be connected to the second electrical connection end 202 of the corresponding battery cell module 200. For example, the two second connection pins 401 in the second electrical connector 400 can be fixedly connected to the second electrical connection ends 202 of the two adjacently distributed battery cell modules 200 by screws. For example, the second connection pin 401 can have a third connection hole, and the second electrical connection end 202 of the battery cell module 200 can have a fourth connection hole corresponding to the third connection hole. In this way, the screw can pass through the third connection hole and the fourth connection hole to fix the second connection pin 401 to the second electrical connection end 202.

[0070] In this case, since the second electrical connector 400 can be fixed in the accommodating cavity A, and the two second connecting pins 401 in the second electrical connector 400 can be exposed through the second opening K2, after multiple battery modules 200 are stacked and arranged in the accommodating cavity A in the box body 100, the two second connecting pins 401 in the second electrical connector 400 can correspond to the second electrical connecting ends 202 of two adjacent battery modules 200. In this way, a worker can use screws to securely connect the two second connecting pins 401 in the second electrical connector 400 to the second electrical connecting ends 202 of two adjacent battery modules 200 through the second opening K2 in the box body 100.

[0071] In this way, the two adjacently distributed battery cell modules 200 can be connected in series through the connection between the two second connecting pins 401 in the second electrical connector 400 and the second electrical connection ends 202 of the two adjacently distributed battery cell modules 200.

[0072] In the embodiments of this application, Figure 4 As shown, the number of second openings K2 in the housing 100 can be at least two. The at least two second openings K2 in the housing 100 can correspond one-to-one with the second connection pins 401 in the at least two second electrical connectors 400, and each second connection pin 401 can be exposed through a corresponding second opening K2. In other words, at least two second connection pins 401 will not simultaneously correspond to the second openings K2 in the same housing 100. This can reduce the portion of the cell module 200 exposed through the second openings K2 in the housing 100, thereby further improving the safety of the battery pack 000 assembly.

[0073] In the examples of this application, please refer to Figure 4 and Figure 5The box body 100 in the battery pack 000 may further have two third openings K3 communicating with the accommodating cavity A. The second opening K2 in the box body 100 may be distributed between the two third openings K3 in the first direction F1.

[0074] The battery pack 000 may further include: two third electrical connectors 500 , where the two third electrical connectors 500 may correspond one-to-one to the two third openings K3 in the box body 100 , and may correspond one-to-one to the two outermost battery modules 200 of the multiple battery modules 200 .

[0075] It should be noted that the third electrical connector 500 in the battery pack 000 can be fixed in the accommodating cavity A, and the third electrical connector 500 may include: a third conductive portion, a third insulating sleeve and two third connecting pins. The third conductive portion in the third electrical connector 500 can be connected to the two third connecting pins respectively. That is, the first end of the third conductive portion can be connected to one third connecting pin, and the second end of the third conductive portion can be connected to another third connecting pin. In this way, the electrical conduction between the two third connecting pins can be achieved through the conducting effect of the third conductive portion. For example, the material of the third conductive portion and the two third connecting pins in the third electrical connector 500 may include: metallic copper.

[0076] Here, the third insulating sleeve in the third electrical connector 500 may be sleeved on the third conductive portion, so that the third electrical connector 500 may be insulated and protected by the third insulating sleeve.

[0077] Wherein, each third electrical connector 500 in the battery pack 000 can be connected to 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 to the second electrical connection end 202 of the corresponding battery cell module 200 through the third connection pin in the third electrical connector 500. For example, the two third connection pins in the third electrical connector 500 can be fixedly connected to the second electrical connection end 202 of the corresponding battery cell module 200 by screws. For example, the third connection pin can have a fifth connection hole, and the second electrical connection end 202 of the battery cell module 200 can have a sixth connection hole corresponding to the fifth connection hole. In this way, the screw can pass through the fifth connection hole and the sixth connection hole to fix the third connection pin to the second electrical connection end 202.

[0078] Here, the portion of each third electrical connector 500 that connects to the second electrical connection end 202 can be exposed through the corresponding third opening K3. Therefore, after multiple battery modules 200 are stacked and arranged in the accommodating cavity A of the box body 100, the two third connecting pins of the third electrical connector 500 can correspond to the second electrical connection end 202 of the corresponding battery module 200. In this way, a worker can use screws through the third opening K3 in the box body 100 to securely connect the two third connecting pins of the third electrical connector 500 to the second electrical connection end 202 of the corresponding battery module 200.

[0079] It should be noted that the portion of each third electrical connector 500 in the battery pack 000 that connects to the second electrical connection end 202 of the corresponding battery cell module 200 will subsequently need to be connected to the vehicle body. In other words, one third electrical connector 500 in the battery pack 000 can serve as the positive electrode, and another third electrical connector 500 in the battery pack 000 can serve as the negative electrode.

[0080] In the examples of this application, please refer to Figure 6 、 Figure 7 and Figure 8 , Figure 6 This is a partial structural diagram of another battery pack provided in an embodiment of the present application. Figure 7 is a partial structural diagram of another battery pack provided in an embodiment of the present application. Figure 8 This is a partial structural diagram of a battery pack provided in another embodiment of the present application. The housing 100 in the battery pack 000 may further include a fourth opening K4 communicating with the accommodating cavity A. Here, the first opening K1 and the fourth opening K4 in the housing 100 may be respectively distributed on both sides of the housing 100 in the third direction F3. The third direction F3 may intersect with the first direction F1 and may intersect with the second direction F2. For example, the third direction F3 may be perpendicular to the first direction F1 and may be perpendicular to the second direction F2.

[0081] Among them, such as Figure 7 and Figure 8 As shown, each cell module 200 in the battery pack 000 may also have a first terminal 203 and a second terminal 204 arranged opposite each other in the third direction F3. Here, the first terminal 203 in the cell module 200 can be used to receive temperature information and cell voltage information collected by the sensor. The second terminal 204 in the cell module 200 will subsequently need to be connected to the battery management system to transmit the collected temperature information and cell voltage information to the battery management system.

[0082] The battery pack 000 may further include a wiring harness assembly 600 fixed in the accommodating cavity A of the box body 100. Here, the wiring harness assembly 600 may have multiple third terminals 601 and multiple fourth terminals 602, and the multiple third terminals 601 and the multiple fourth terminals 602 may each correspond one-to-one to the multiple battery cell modules 200.

[0083] Each third terminal 601 in the wiring harness assembly 600 can be connected to the first terminal 203 of the corresponding cell module 200. For example, each third terminal 601 in the wiring harness assembly 600 can be plugged into the first terminal 203 of the corresponding cell module 200. For example, the first terminal 203 of the cell module 200 can have a female connector, and the third terminal 601 in the wiring harness assembly 600 can be a male connector to ensure that each third terminal 601 in the wiring harness assembly 600 can be properly plugged into the first terminal 203 of the corresponding cell module 200.

[0084] Here, the connected third terminal 601 and the first terminal 203 can be exposed through the first opening K1 in the box 100. In this case, the staff can plug the third terminal 601 in the wiring harness assembly 600 and the first terminal 203 of the battery module 200 together through the first opening K1 in the box 100.

[0085] Each fourth terminal 602 in the wiring harness assembly 600 can be connected to the second terminal 204 of the corresponding cell module 200. For example, each fourth terminal 602 in the wiring harness assembly 600 can be plugged into the second terminal 204 of the corresponding cell module 200. For example, the second terminal 204 of the cell module 200 can have a female connector, and the fourth terminal 602 in the wiring harness assembly 600 can be a male connector to ensure that each fourth terminal 602 in the wiring harness assembly 600 can be properly plugged into the second terminal 204 of the corresponding cell module 200.

[0086] Here, the connected fourth terminal 602 and the second terminal 204 can be exposed through the fourth opening K4 in the box 100. In this case, the staff can plug the fourth terminal 602 in the wiring harness assembly 600 and the second terminal 204 of the battery module 200 together through the fourth opening K4 in the box 100.

[0087] In this application, please refer to Figure 9 and Figure 10 , Figure 9 is a structural diagram of another battery cell module provided in an embodiment of the present application. Figure 10The battery pack 000 may further include: a first cover plate 700 , a second cover plate 800 , and a third cover plate 900 .

[0088] The first cover plate 700 in the battery pack 000 can be connected to the housing 100 and can cover the first opening K1 in the housing 100. In this way, the first cover plate 700 in the battery pack 000 can prevent dust and moisture from entering the interior of the battery pack 000 through the first opening K1 in the housing 100.

[0089] The second cover plate 800 in the battery pack 000 can be connected to 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 moisture from entering the interior of the battery pack 000 through the second opening K2 in the box body 100.

[0090] The third cover plate 900 in the battery pack 000 can be connected to 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 moisture from entering the interior of the battery pack 000 through the fourth opening K4 in the box body 100.

[0091] In summary, an embodiment of the present application provides a battery pack, comprising: a case, a plurality of battery modules, at least one first electrical connector, and at least one second electrical connector. Since a first opening and a second opening are provided in the case, a plurality of battery modules can be stacked in a receiving cavity first, and then the first electrical connector is connected to the first electrical connection ends of two adjacent battery modules through the first opening in the case, and the second electrical connector is connected to the second electrical connection ends of two adjacent battery modules through the second opening in the case, so as to realize the series connection between each battery module. In this way, the two battery modules are not connected in series after the latter battery module is installed on the former battery module. Instead, the battery modules are first stacked in the receiving cavity of the case, and then the battery modules stacked in the receiving cavity of the case are connected in series. In this way, even if a staff member assembles a battery module upside down during the assembly of the battery module in the receiving cavity, the battery pack is not prone to the adverse phenomenon of short circuit.

[0092] The present application also provides a vehicle, which may be a hybrid vehicle, a gasoline-powered vehicle, or an extended-range electric vehicle, etc. The vehicle includes a vehicle body and a battery pack installed in the vehicle body, wherein the battery pack is any of the above-mentioned battery packs.

[0093] In this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. The term "plurality" refers to two or more than two, unless expressly limited otherwise.

[0094] The above description is merely an optional embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A battery pack, characterized in that: include: A box (100), a plurality of battery core modules (200), at least one first electrical connector (300), and at least one second electrical connector (400); The box body (100) has a receiving cavity (A), and a first opening (K1) and a second opening (K2) communicating with the receiving cavity (A); The plurality of battery cell modules (200) are stacked and arranged in the accommodating cavity (A) along a first direction (F1), and each of the battery cell modules (200) has a first electrical connection end (201) and a second electrical connection end (202) arranged opposite to each other in a second direction (F2), and the first direction (F1) intersects with the second direction (F2); One of the first electrical connectors (300) is respectively connected to the first electrical connection ends (201) of two adjacently distributed battery core modules (200), and a portion of the first electrical connector (300) connected to the first electrical connection ends (201) is exposed through the first opening (K1); A second electrical connector (400) is respectively connected to the second electrical connection ends (202) of two adjacently distributed battery core modules (200), and a portion of the second electrical connector (400) connected to the second electrical connection ends (202) is exposed through the second opening (K2).

2. The battery pack according to claim 1, wherein: The number of the first opening (K1) is at least one; the first electrical connection ends (201) of two adjacently distributed battery core modules (200) are exposed through the same first opening (K1); The at least one first electrical connector (300) corresponds one-to-one 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 ends (201) of two adjacently distributed battery cell modules (200).

3. The battery pack according to claim 2, wherein: The first electrical connector (300) comprises: a first conductive portion (301), a first insulating sleeve (302) and two first connecting pins (303); The first conducting portion (301) is connected to the two first connecting pins (303) respectively, and the first insulating sleeve (302) is sleeved on the first conducting portion (301); The two first connecting pins (303) in the first electrical connector (300) are respectively connected to the first electrical connecting ends (201) of two adjacently distributed battery cell modules (200).

4. The battery pack according to claim 1, wherein: The second electrical connector (400) is fixed in the accommodating cavity (A), and has two second connecting pins (401) at both ends of the second electrical connector (400), and the two second connecting pins (401) are exposed through the second opening (K2), and the two second connecting pins (401) respectively correspond to two adjacently distributed battery modules (200), and each second connecting pin (401) is connected to the second electrical connection end (202) of the corresponding battery module (200).

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

6. The battery pack according to any one of claims 1 to 5, characterized in that: The box body (100) further has two third openings (K3) communicating with the accommodating cavity (A), and the second opening (K2) is distributed between the two third openings (K3) in the first direction (F1); The battery pack further comprises: two third electrical connectors (500), the two third electrical connectors (500) corresponding one-to-one to the two third openings (K3), and corresponding one-to-one to the two outermost battery modules (200) of the plurality of battery modules (200); Each of the third electrical connectors (500) is connected to the second electrical connection end (202) of the corresponding battery cell module (200), and a portion of each of the third electrical connectors (500) that is connected to the second electrical connection end (202) is exposed through the corresponding third opening (K3).

7. The battery pack according to any one of claims 1 to 5, characterized in that: The box body further has a fourth opening (K4) communicating with the accommodating cavity (A); the first opening (K1) and the fourth opening (K4) are respectively distributed on both sides of the box body (100) in a third direction (F3); the third direction (F3) intersects with the first direction (F1) and the second direction (F2); Each of the battery core modules (200) further comprises a first terminal (203) and a second terminal (204) arranged opposite to each other in the third direction (F3); The battery pack further comprises: a wiring harness group (600) fixed in the accommodating cavity (A), the wiring harness group (600) having a plurality of third wiring terminals (601) and a plurality of fourth wiring terminals (602), the plurality of third wiring terminals (601) and the plurality of fourth wiring terminals (602) all corresponding one-to-one to the plurality of battery cell modules (200); Each of the third terminals (601) is connected to the first terminal (203) of the corresponding battery cell module (200), and the connected third terminal (601) and the first terminal (203) are exposed through the first opening (K1); each of the fourth terminals (602) is connected to the second terminal (204) of the corresponding battery cell module (200), and the connected fourth terminal (602) and the second terminal (204) are exposed through the fourth opening (K4).

8. The battery pack according to claim 7, characterized in that: The battery pack further comprises: a first cover plate (700), a second cover plate (800) and a third cover plate (900); The first covering plate (700) is connected to the box body (100) and covers the first opening (K1); the second covering plate (800) is connected to the box body (100) and covers the second opening (K2); and the third covering plate (900) is connected to the box body (100) and covers the fourth opening (K4).

9. The battery pack according to any one of claims 1 to 5, characterized in that: For the first battery cell module, the second battery cell module and the third battery cell module that are adjacently distributed among the multiple battery cell modules (200), the second battery cell module is 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 is connected to the first electrical connection end (201) of the second battery cell module via a first electrical connector (300), and the second electrical connection end (202) of the second battery cell module is connected to the electrical connection end (202) of the third battery cell module via a second electrical connector (400).

10. A vehicle, characterized in that: include: A vehicle body, and a battery pack installed in the vehicle body, wherein the battery pack is the battery pack according to any one of claims 1 to 9.

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