CN219959292U - Battery pack and vehicle - Google Patents
Battery pack and vehicle Download PDFInfo
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- CN219959292U CN219959292U CN202321249094.7U CN202321249094U CN219959292U CN 219959292 U CN219959292 U CN 219959292U CN 202321249094 U CN202321249094 U CN 202321249094U CN 219959292 U CN219959292 U CN 219959292U
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- battery pack
- voltage connector
- output
- arrangement space
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- 238000009434 installation Methods 0.000 claims abstract description 10
- 230000000149 penetrating effect Effects 0.000 claims description 8
- 238000000926 separation method Methods 0.000 claims description 6
- 238000005259 measurement Methods 0.000 description 11
- 230000009286 beneficial effect Effects 0.000 description 6
- 125000006850 spacer group Chemical group 0.000 description 6
- 238000006073 displacement reaction Methods 0.000 description 5
- 238000004804 winding Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 3
- 238000009413 insulation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000037452 priming Effects 0.000 description 1
Abstract
The utility model relates to the technical field of battery packs and discloses a battery pack and a vehicle, wherein the battery pack comprises a box body, a battery pack and a BDU assembly, and the box body is provided with an installation cavity; the battery pack and the BDU component are arranged in the mounting cavity; the battery pack is provided with a first total output electrode and a second total output electrode; the BDU component comprises a first high-voltage connector, a second high-voltage connector, a first relay and a second relay, wherein the first high-voltage connector and the second high-voltage connector are respectively arranged at two ends of the box body along the first direction; the first relay and the second relay are respectively arranged at two ends of the mounting cavity along the first direction. Compared with the prior art, the battery pack integrates the first relay and the second relay in the box body, and the first relay and the second relay of the battery pack are arranged separately and can be flexibly fixed in the mounting cavity of the battery pack, so that the utilization rate of the internal space of the battery pack is improved.
Description
Technical Field
The utility model relates to the technical field of batteries, in particular to a battery pack and a vehicle.
Background
The BDU ((Battery Disconnect Unit) battery pack circuit breaking unit) is specially designed for the inside of a battery pack and is also a type of distribution box, and is a device for switching on and switching off high-voltage power supply of a power battery of a new energy automobile, and plays a vital role in the safety of the battery pack.
With the development of pure electric vehicles, the requirements on the endurance capacity of the whole vehicle, namely the mass energy density, are improved, the overall size of the battery pack is gradually increased, and the space in the battery pack is continuously compressed. Meanwhile, the pure electric vehicle has higher requirements on the output power of the battery pack, and the driving mode of the pure electric vehicle is changed from back driving/front driving to four driving.
In the prior art, BDUs are typically integrated structures in which a main positive relay and a main negative relay are integrally provided in a case. The BDU of integrated configuration occupies the size of battery package inner space fixed, and main positive relay and main negative relay's fixed in position, is applied to the battery package of four-wheel drive output with it, is unfavorable for the compression of battery package inner space, also is unfavorable for the arrangement of copper bar, can make the battery package appear that inner space utilization is low, difficult winding displacement's problem.
Disclosure of Invention
The purpose of the utility model is that: the battery pack is high in internal space utilization rate and easy to arrange wires.
In order to achieve the above object, the present utility model provides a battery pack comprising:
the box body is provided with an installation cavity;
the battery pack is arranged in the mounting cavity; the battery pack is provided with a first total output electrode and a second total output electrode;
BDU subassembly set up in the installation cavity, BDU subassembly includes:
the first high-voltage connector and the second high-voltage connector are respectively arranged at two ends of the box body along the first direction;
the first relay and the second relay are respectively arranged at two ends of the mounting cavity along the first direction; the first high-voltage connector and the first relay are arranged at intervals along the first direction, and the second high-voltage connector and the second relay are arranged at intervals along the first direction;
a first electrical connection assembly extending at least partially along a first direction, the first electrical connection assembly connecting the first total output pole, the first relay, and the first and second high voltage connectors;
and a second electrical connection assembly extending at least partially along the first direction, the second electrical connection assembly connecting the second total output pole, the second relay, and the first and second high voltage connectors.
In a particular embodiment of the utility model, the first electrical connection assembly comprises:
a first main output line connecting the first total output electrode and an input end of the first relay;
the first high-voltage connector and the second high-voltage connector are connected with the output end of the first relay through the first auxiliary output line;
The second electrical connection assembly includes:
a second main output line connecting the second total output electrode and an input end of the second relay;
and a second sub output line through which the first high-voltage connector and the second high-voltage connector are connected to an output terminal of the second relay.
In a specific embodiment of the present utility model, the case includes:
a body defining the mounting cavity;
the separation beam is arranged in the mounting cavity and connected with the body, and separates the mounting cavity to form a first cavity and a second cavity which are distributed along the first direction;
the battery pack includes:
the first battery module is arranged in the first cavity;
a second battery module and a third battery module provided in the second chamber and arranged at intervals along the first direction;
along the first direction, the first battery module and a cavity wall of the first cavity define a first arrangement space; the second battery module, the third battery module and the cavity wall of the second cavity define a second arrangement space;
the first relay is arranged in the first arrangement space, and the first total output electrode is arranged on the first battery module and is positioned at one side of the first battery module facing the first arrangement space; the second relay is arranged in the second arrangement space, and the second total output electrode is arranged on the second battery module and is positioned on one side of the second battery module, which faces the second arrangement space.
In a specific embodiment of the present utility model, the battery pack includes a plurality of unit cells arranged along a first direction and a second direction, at least part of adjacent unit cells defining a third arrangement space extending along the first direction, the first direction intersecting the second direction;
the first electrical connection assembly includes:
the first auxiliary output branch line penetrates through the third arrangement space, one end of the first auxiliary output branch line is connected with the output end of the first relay, and the other end of the first auxiliary output branch line is connected with the second high-voltage connector;
the second electrical connection assembly includes:
the second auxiliary output branch line penetrates through the third arrangement space; one end of the second auxiliary output branch line is connected with the output end of the second relay, and the other end of the second auxiliary output branch line is connected with the first high-voltage connector.
In a specific embodiment of the present utility model, the battery pack further includes:
the fixed bracket is arranged in the third arrangement space and is fixedly connected to the box body; the fixed support is provided with a first clamping groove and a second clamping groove at intervals along a second direction, the first auxiliary output branch line is fixedly arranged on the first clamping groove in a penetrating mode, and the second auxiliary output branch line is fixedly arranged on the second clamping groove in a penetrating mode.
In a particular embodiment of the utility model, the first secondary output leg has a dimension W in the second direction 1 mm, dimension H in the third direction 1 mm, satisfy: w is more than 0.01 1 /H 1 < 0.5; and/or the second subsidiary output branch has a dimension W in the second direction 2 mm, dimension H in the third direction 2 mm, satisfy: w is more than 0.01 2 /H 2 ＜0.5。
In a particular embodiment of the utility model, the BDU assembly further includes:
a pre-charge assembly connected in parallel with the first relay;
the PTC loop fuse is connected in parallel with the first electric connection component;
the Hall sensor is penetrated by at least part of the second electric connection assembly;
the pre-charging assembly, the PTC loop fuse and the first relay are located at the same end of the mounting cavity along a first direction; the Hall sensor and the second relay are positioned at the same end of the mounting cavity.
In a particular embodiment of the utility model, the BDU assembly further includes:
the PTC loop fuse is connected in parallel with the first electric connection component;
the battery pack:
the PTC interface is arranged on the box body;
along a first direction, the PTC interface and the PTC loop fuse are positioned at the same end of the box body, and projections of the PTC interface and the PTC loop fuse on a plane perpendicular to the first direction are at least partially overlapped.
In a specific embodiment of the present utility model, the battery pack further includes:
the first protection cover is arranged on the first relay and covers the first relay;
the second protective cover is arranged on the second relay and covers the second relay.
In a particular embodiment of the utility model, the minimum distance between the first relay and the second relay in the first direction is D 1 mm, the maximum size of the box body is D 2 mm, satisfy: d is 0.5 < 1 /D 2 ＜0.9。
The utility model also provides a vehicle comprising the battery pack.
Compared with the prior art, the battery pack and the vehicle have the beneficial effects that:
the first high-voltage connector and the second high-voltage connector are respectively arranged at two ends of the box body along the first direction, and the first relay and the second relay are respectively arranged at two ends of the mounting cavity along the first direction. Through separately setting up first relay, second relay, can be fixed in the installation intracavity of battery package in a flexible way, be favorable to improving the utilization ratio of battery package inner space. Moreover, because the first relay and the second relay are separately arranged and are not connected together, when the first electric connection assembly is connected with the first relay and the second electric connection assembly is connected with the second relay, the first relay and the second relay can not be mutually influenced, the operation space is relatively large, the first electric connection assembly and the second electric connection assembly are convenient to arrange, and the winding displacement efficiency of the battery pack is improved.
In addition, the battery pack is provided with the first high-voltage connector and the second high-voltage connector, the battery pack is suitable for the four-wheel-drive output pure electric vehicle, the battery pack is applied to the four-wheel-drive output pure electric vehicle, and the two driving devices of the pure electric vehicle are respectively arranged at two ends of the length direction of the vehicle body, so that the first high-voltage connector and the second high-voltage connector are respectively arranged at two ends of the box body along the first direction, and the first high-voltage connector and the second high-voltage connector are conveniently connected with the two driving devices respectively, so that the flat cable is facilitated during the assembly of the pure electric vehicle.
Drawings
Fig. 1 is a structural view of a battery pack according to an embodiment of the present utility model;
fig. 2 is a block diagram of a battery pack with a case cover removed according to an embodiment of the present utility model;
FIG. 3 is an enlarged schematic view of FIG. 2A in accordance with an embodiment of the utility model;
FIG. 4 is an enlarged schematic view of B of FIG. 2 in accordance with an embodiment of the utility model;
fig. 5 is a view showing another angle of the battery pack with the cover removed according to the embodiment of the present utility model;
FIG. 6 is an enlarged schematic view of C of FIG. 5 in accordance with an embodiment of the utility model;
FIG. 7 is an enlarged schematic view of D of FIG. 5 in accordance with an embodiment of the utility model;
FIG. 8 is an enlarged schematic view of E of FIG. 5 in accordance with an embodiment of the utility model;
FIG. 9 is a block diagram of a stationary bracket according to an embodiment of the utility model;
FIG. 10 is a block diagram of a mounting bracket of an embodiment of the present utility model mated with a first secondary output leg and a second secondary output leg;
FIG. 11 is a block diagram of the lower housing in accordance with an embodiment of the present utility model mated with a first relay and a second relay;
fig. 12 is a structural view of a cover of an embodiment of the present utility model.
In the figure, 1, a box body; 10. a mounting cavity; 101. a first chamber; 102. a second chamber; 11. a lower box body; 12. a case cover; 121. avoiding the groove; 2. a battery pack; 201. a first total output electrode; 202. a second total output electrode; 203. a connecting sheet; 21. a first battery module; 211. a first channel; 22. a second battery module; 221. a second channel; 23. a third battery module; 3. a BDU component; 31. a first high voltage connector; 32. a second high voltage connector; 33. a first relay; 34. a second relay; 35. a priming assembly; 36. a PTC circuit fuse; 37. a hall sensor; 38. a battery loop fuse; 4. a first main output line; 5. a first sub output line; 51. a first secondary output branch; 511. a first connection section; 52. a first subsidiary output main line; 521. a second connection section; 6. a second main output line; 7. a second sub output line; 71. a second sub output branch; 711. a third connecting section; 72. a second subsidiary output main line; 721. a fourth connecting section; 8. a spacer beam; 81. an avoidance channel; 9. a fixed bracket; 91. a first clamping groove; 92. a second clamping groove; 100. a first arrangement space; 200. a second arrangement space; 300. a third arrangement space; 400. a PTC interface; 500. a first protective cover; 600. a second protective cover; x, a first direction; y, second direction; z, third direction.
Detailed Description
The following describes in further detail the embodiments of the present utility model with reference to the drawings and examples. The following examples are illustrative of the utility model and are not intended to limit the scope of the utility model.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present utility model, the meaning of "plurality" means two or more, unless specifically defined otherwise.
In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; the connection may be mechanical connection, direct connection or indirect connection through an intermediate medium, and may be internal connection of two elements or interaction relationship of two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present application, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is less level than the second feature.
In the examples of the present application, "parallel" refers to a state in which the angle formed by a straight line and a straight line, a straight line and a plane, or a plane and a plane is-1 ° to 1 °. The term "perpendicular" refers to a state in which the angle formed by a straight line and a straight line, a straight line and a plane, or a plane and a plane is 89 ° to 91 °. Equal distance, equal angle or equal area refers to a state where the tolerance range is-1%.
The utility model provides a vehicle, which is provided with a battery pack for providing power for electric equipment on the vehicle.
As shown in fig. 1 to 4, a battery pack according to a preferred embodiment of the present utility model includes a case 1, a battery pack 2, and a BDU assembly 3, wherein the case 1 includes a lower case 11 and a case cover 12, the lower case 11 is provided with a first mounting groove, the case cover 12 is connected with the lower case 11, the case cover 12 is provided with a second mounting groove, and the first mounting groove and the second mounting groove cooperate to form a mounting cavity 10. The battery pack 2 and BDU assembly 3 are disposed within the mounting cavity 10.
The battery pack 2 is provided with a first total output electrode 201 and a second total output electrode 202. The battery pack 2 includes a plurality of unit cells arranged in the first direction X and the second direction Y in the mounting chamber 10, and the plurality of unit cells are connected in series through the connection piece 203. One of the first total output electrode 201 and the second total output electrode 202 is a total positive output electrode, and the other is a total negative output electrode.
The BDU assembly 3 includes a first high voltage connector 31, a second high voltage connector 32, a first relay 33, a second relay 34, a first electrical connection assembly, and a second electrical connection assembly. One of the first relay 33 and the second relay 34 is a main positive relay, and the other is a main negative relay.
Wherein a first high-voltage connector 31 and a second high-voltage connector 32 are provided at both ends of the case 1 in the first direction X, respectively. The first relay 33 and the second relay 34 are respectively disposed at two ends of the mounting cavity 10 along the first direction X, the first high-voltage connector 31 and the first relay 33 are disposed at intervals along the first direction X, and the second high-voltage connector 32 and the second relay 34 are disposed at intervals along the first direction X. The first electrical connection assembly extends at least partially along the first direction X, the first electrical connection assembly connecting the first total output pole 201, the first relay 33, and the first and second high voltage connectors 31, 32; the second electrical connection assembly extends at least partially along the first direction X, and connects the second total output pole 202, the second relay 34, and the first and second high voltage connectors 32.
In some embodiments, the first high-voltage connector 31 and the second high-voltage connector 32 may be disposed through a side wall of the case 1, one end of which is exposed on a side of the case 1 facing away from the mounting cavity 10, and the other end of which is accommodated in the mounting cavity 10 or connected with the mounting cavity 10.
In other embodiments, the first high voltage connector 31 and the second high voltage connector 32 may both be disposed within the mounting cavity 10.
According to the battery pack, the first relay 33 and the second relay 34 are arranged separately and can be flexibly fixed in the mounting cavity 10 of the battery pack, so that the utilization rate of the internal space of the battery pack is improved. Moreover, since the first relay 33 and the second relay 34 are separately arranged and are not connected together, when the first electric connection component is connected with the first relay 33 and the second electric connection component is connected with the second relay 34, the first relay 33 and the second relay 34 cannot influence each other, the operation space is relatively large, the first electric connection component and the second electric connection component are convenient to arrange, and the wire arrangement efficiency of the battery pack is improved.
In addition, the battery pack of the utility model is provided with the first high-voltage connector 31 and the second high-voltage connector 32, which are suitable for the four-wheel-drive output pure electric vehicle, and the battery pack is applied to the four-wheel-drive output pure electric vehicle, and the two driving devices of the pure electric vehicle are respectively arranged at two ends of the length direction of the vehicle body, so that the first high-voltage connector 31 and the second high-voltage connector 32 are respectively arranged at two ends of the box body 1 along the first direction, and the first high-voltage connector 31 and the second high-voltage connector 32 are convenient to be respectively connected with the two driving devices, thereby being beneficial to wire arrangement during the assembly of the pure electric vehicle. If the battery pack is arranged on the pure electric vehicle, two ends of the battery pack along the first direction correspond to two ends of the pure electric vehicle in the length direction of the vehicle body respectively, at this time, the first high-voltage connector 31 and the second high-voltage connector 32 correspond to and are close to two driving devices respectively, and wiring is facilitated during assembly of the pure electric vehicle.
The utility model takes the first total output of the battery pack as a total positive output pole, the second total output as a total negative output pole, and takes the first relay as a main positive relay and the second relay as a main negative relay as an example for explanation.
In some embodiments, as shown in fig. 5-6, the first electrical connection assembly includes a first main output line 4 and a first secondary output line 5. The first main output line 4 connects the first total output electrode 201 and the input terminal of the first relay 33. The positive electrode interface of the first high-voltage connector 31 and the positive electrode interface of the second high-voltage connector 32 are both connected to the output terminal of the first relay 33 through the first sub output line 5. That is, the first total output electrode 201 of the battery pack 2 is connected to the first high-voltage connector 31 and the second high-voltage connector through the first main output line 4 and the first sub output line 5. Since the first high-voltage connector 31 and the second high-voltage connector 32 are arranged at two ends of the box body 1 along the first direction X, the first high-voltage connector 31 and the second high-voltage connector 32 are not connected together, when the first auxiliary output line 5 is connected with the first high-voltage connector 31 and the second high-voltage connector 32, the first high-voltage connector 31 and the second high-voltage connector 32 cannot mutually influence, the operation space is relatively large, and the layout difficulty of the first auxiliary output line 5 can be reduced. At this time, the arrangement azimuth of the first main output line 4 is set according to the positions of the first total output electrode 201 and the first relay 33; and a portion of the first sub output line 5 extends in the first direction X to connect the first relay 33 and the first high-voltage connector 31, and to connect the first relay 33 and the second high-voltage connector 32.
As shown in fig. 2 and 4, the second electrical connection assembly includes a second main output line 6 and a second sub output line 7. The second main output line 6 connects the second total output electrode 202 and the input of the second relay 34. The negative electrode interface of the first high-voltage connector 31 and the negative electrode interface of the second high-voltage connector 32 are both connected to the output terminal of the second relay 34 through the second sub output line 7. That is, the second total output electrode 202 of the battery pack 2 is connected to the first high-voltage connector 31 and the second high-voltage connector 32 through the second main output line 6 and the second sub output line 7. Similarly, since the first high-voltage connector 31 and the second high-voltage connector 32 are disposed at both ends of the case 1 along the first direction X, the two are not brought together, and when the second sub output line 7 is connected to the first high-voltage connector 31 and the second high-voltage connector 32, the first high-voltage connector 31 and the second high-voltage connector 32 do not affect each other, the operation space is relatively large, and the difficulty in laying the second sub output line 7 can be reduced. At this time, the arrangement azimuth of the second main output line 6 is set according to the positions of the second total output pole 202 and the second relay 34; and a portion of the second sub output line 7 extends in the first direction X to connect the second relay 34 and the first high-voltage connector 31, and to connect the second relay 34 and the second high-voltage connector 32.
In some embodiments, as shown in fig. 1, 2 and 11, the lower case 11 and the case cover 12 constitute a body of the case 1, and the first and second mounting grooves of the body define the mounting cavity 10. The battery pack further comprises a separation beam 8, wherein the separation beam 8 is arranged in the mounting cavity 10 and is connected with the lower box 11, and the separation beam 8 separates the mounting cavity 10 to form a first cavity 101 and a second cavity 102 distributed along the first direction X.
As shown with reference to fig. 1 to 3, the battery pack 2 includes a first battery module 21, a second battery module 22, and a third battery module 23. The first battery module 21 is disposed within the first chamber 101. The second battery module 22 and the third battery module 23 are provided in the second chamber 102 and are arranged at intervals in the first direction X.
Along the first direction X, the first battery module 21 and the cavity wall of the first chamber 101 define a first arrangement space 100, the first relay 33 is disposed in the first arrangement space 100, and the first total output electrode 201 is disposed on the first battery module 21 and located on a side of the first battery module 21 facing the first arrangement space 100. Because the first total output electrode 201 of the battery pack is close to the first arrangement space 100, the first relay 33 is arranged in the first arrangement space 100, and based on this, the first main output line 4 only needs to be arranged in the first arrangement space 100 to connect the first total output electrode 201 and the first relay 33, and the practical application length of the first main output line 4 is shorter, and the operation is convenient when laying, which is beneficial to improving the winding displacement efficiency of the battery pack.
Preferably, the first high-voltage connector 31 and the first relay 33 are disposed at the same end of the case 1 along the first direction X, and the first high-voltage connector 31 is disposed corresponding to the first arrangement space 100, so that the first auxiliary output line 5 is convenient to connect the first relay 33 and the first high-voltage connector 31, and the first auxiliary output line 5 is convenient to be disposed, thereby being beneficial to improving the winding displacement efficiency of the battery pack.
Referring to fig. 1, 2 and 4, the second battery module 22, the third battery module 23 and the cavity wall of the second chamber 102 define a second arrangement space 200, the second relay 34 is disposed in the second arrangement space 200, and the second total output electrode 202 is disposed on the second battery module 22 and located on a side of the second battery module 22 facing the second arrangement space 200. Because the second total output electrode 202 of the battery pack is close to the second arrangement space 200, the second relay 34 is arranged in the second arrangement space 200, and based on this, the second main output line 6 only needs to be arranged in the second arrangement space 200 to connect the second total output electrode 202 and the second relay 34, the practical application length of the second main output line 6 is shorter, and the operation is convenient when laying, thereby being beneficial to improving the wire arrangement efficiency of the battery pack.
Specifically, the second relay 34 is located between the second battery module 22 and the third battery module 23. Or, the second relay 34 is located between the second battery module 22 and the cavity wall of the second chamber in the first direction X, and at this time, the third battery module 23 is located at one side of the second relay 34 in the first direction X. Alternatively, the second relay 34 is located between the third battery module 23 and the cavity wall of the second chamber in the first direction X, and the second battery module 22 is located at a side of the third battery module 23 facing away from the second relay 34. The utility model is not limited in this regard.
Preferably, the second high voltage connector 32 and the second relay 34 are disposed at the same end of the case 1 along the first direction X, and the second high voltage connector 32 is disposed corresponding to the second disposition space 200, so that the second auxiliary output line 7 is convenient to connect the second relay 34 and the second high voltage connector 32, and the second auxiliary output line 7 is convenient to be disposed, thereby being beneficial to improving the winding displacement efficiency of the battery pack.
In practical application, the spacer 8 may play a role in positioning, and the side, far away from the first arrangement space 100, of the first battery module 21 is positioned and installed in the first chamber 101 by the spacer 8, and the side, far away from the second arrangement space 200, of the second battery module 22 is also positioned and installed in the second chamber 102 by the spacer 8, so that the wire arrangement efficiency of the battery pack can be improved. In addition, the first battery module 21 and the second battery module 22 are neatly mounted in the mounting chamber 10 based on the spacer beam 8, and the utilization rate of the internal space of the battery pack can be improved.
The lower case 11 also defines the mounting position of the second chamber 102 corresponding to the third battery module 23 into a chamber structure that is shape-fitted to the third battery module 23, so that the structure of the battery pack is more compact while the third battery module 23 is stably mounted. At this time, the second relay 34 is located between the second battery module 22 and the third battery module 23. Alternatively, the second relay 34 is located between the second battery module 22 and the cavity wall of the second chamber in the first direction X. In addition, referring to fig. 12, the case cover 12 is further provided with a relief groove 121, the relief groove 121 is recessed away from the first mounting groove, and the third battery module 23 extends into the relief groove 121.
In some embodiments, referring to fig. 2 to 8, each of the first, second and third battery modules 21, 22 and 23 is composed of a plurality of unit cells arranged in the first and second directions X and Y, wherein at least part of the adjacent unit cells define a third arrangement space 300 extending in the first direction X. The first arrangement space 100, the third arrangement space 300, and the second arrangement space 200 are sequentially conducted in the first direction X. Specifically, at least a portion of the unit cells in the first battery module 21 are arranged at intervals to form the first channel 211. At least a portion of the battery cells in the second battery module 22 are spaced apart to form a second channel 221. The spacer beam 8 is provided with an avoidance channel 81. Wherein the first channel 211, the avoidance channel 81 and the second channel 221 are sequentially communicated to form a third arrangement space 300.
The first sub output line 5 includes a first sub output branch line 51 and a first sub output main line 52. The first auxiliary output branch line 51 penetrates through the third arrangement space 300, one end of the first auxiliary output branch line 51 is connected with the output end of the first relay 33, and the other end is connected with the positive electrode interface of the second high-voltage connector 32. The first sub output main line 52 is provided in the first arrangement space 100, and the first sub output main line 52 connects the output end of the first relay 33 and the positive electrode interface of the first high voltage connector 31.
The second sub output line 7 includes a second sub output branch line 71 and a second sub output main line 72. The second sub output branch line 71 penetrates the third arrangement space 300; one end of the second sub output branch line 71 is connected to the output terminal of the second relay 34, and the other end is connected to the negative electrode interface of the first high voltage connector 31. The second sub-output main line 72 is provided in the second arrangement space 200, and the second sub-output main line 72 connects the output terminal of the second relay 34 and the negative electrode interface of the second high voltage connector 32.
Specifically, since the first arrangement space 100, the third arrangement space 300 and the second arrangement space 200 are sequentially conducted in the first direction X, portions of the first and second sub output branches 51, 71 located in the third arrangement space 300 also extend in the first direction X, and the first and second sub output branches 51, 71 are simple in structure and convenient to lay, and can improve the wire arrangement efficiency of the battery pack.
In practical use, the portions of the first and second sub-output branches 51 and 71 located in the third arrangement space 300 extend along the first direction X, and the longer the two extend along the first direction X, the worse the stability, and the battery pack is liable to shake in practical use, and therefore, in some embodiments, as shown with reference to fig. 5 to 10, the battery pack further includes a fixing bracket 9, and the fixing bracket 9 is provided in the third arrangement space 300 and fixedly connected to the case 1; the fixed bracket 9 is provided with a first clamping groove 91 and a second clamping groove 92 at intervals along the second direction Y, the first auxiliary output branch line 51 is fixedly arranged on the first clamping groove 91 in a penetrating manner, the second auxiliary output branch line 71 is fixedly arranged on the second clamping groove 92 in a penetrating manner, and the installation stability of the first auxiliary output branch line 51 and the second auxiliary output branch line 71 can be improved based on the arrangement of the fixed bracket 9.
In some embodiments, as shown in FIG. 10, the first secondary output leg 51 has a dimension W in the second direction Y 1 mm, dimension H in the third direction Z 1 mm, satisfy: w is more than 0.01 1 /H 1 < 0.5, wherein W 1 /H 1 A range that may be one or any two of 0.015, 0.043, 0.086, 0.20, 0.25, 0.32, 0.36, 0.43, 0.47; the second subsidiary output branch 71 has a dimension W in the second direction Y 2 mm, dimension H in the third direction Z 2 mm, satisfy: w is more than 0.01 2 /H 2 < 0.5, wherein W 2 /H 2 May be in the range of one or any two of 0.015, 0.043, 0.086, 0.20, 0.25, 0.32, 0.36, 0.43, 0.47. That is, the spans of the first and second sub output branch lines 51 and 71 in the second direction Y are smaller than those in the third direction Z, and both are provided on the casing 1 in a vertically arranged manner, based on which the vibrations of the first and second sub output branch lines 51 and 71 can be reduced, the mounting stability of the first and second sub output branch lines 51 and 71 can be improved, and the occupation of the space of the mounting chamber 10 can be reduced, so that the battery pack volume utilization ratio is higher, and the structure is more compact.
In other embodiments, the first secondary output leg 51 in the battery pack has a dimension W in the second direction Y 1 mm, dimension H in the third direction Z 1 mm, satisfy: w is more than 0.01 1 /H 1 < 0.5; or, the second subsidiary output branch 71 is scaled in the second direction YCun is W 2 mm, dimension H in the third direction Z 2 mm, satisfy: w is more than 0.01 2 /H 2 < 0.5. Based on this, the mounting stability of the first sub output branch line 51 or the second sub output branch line 71 can be improved, and the occupation of the space of the mounting chamber 10 can be reduced, so that the battery pack can be used more efficiently and the structure is more compact. The utility model is not limited in this regard.
In some embodiments, the following are satisfied: w is more than 0.03 2 /H 2 ＜0.3，0.03＜W 1 /H 1 And less than 0.3 to further improve the battery pack volume utilization and the installation stability.
In some embodiments, the following are satisfied: w is more than 0.05 and less than 2 /H 2 ＜0.2，0.05＜W 1 /H 1 And less than 0.2 to further improve the battery pack volume utilization and the installation stability.
In some embodiments, 0.5 < W 1 ＜6，5＜H 1 ＜60，0.5＜W 2 ＜6，5＜H 2 ＜60。
In other embodiments, 1.5 < W 1 ＜4，10＜H 1 ＜30，1.5＜W 2 ＜4，10＜H 2 ＜30。
Specifically, the dimension W of the first sub output branch line 51 in the second direction Y 1 mm, dimension H in third direction Z 1 mm, the dimension W of the second subsidiary output branch 71 in the second direction Y 2 mm, dimension H in third direction Z 2 mm, which can be measured by conventional length measuring tools, the utility model is not limited in this regard. When the dimension W of the first sub output branch 51 in the second direction Y is measured 1 In this case, the two sides of the first sub-output branch line 51 along the second direction Y are used as measurement reference surfaces, the dimensions of the two sides are measured multiple times to obtain multiple measurement values, and the average value of the multiple measurement values is calculated to be the dimension W 1 The method comprises the steps of carrying out a first treatment on the surface of the Similarly, when the dimension H of the first sub-output branch line 51 in the third direction Z is measured 1 In this case, the two sides of the first sub-output branch line 51 along the third direction Z are used as measurement reference surfaces, the dimensions of the two sides are measured multiple times to obtain multiple measurement values, and the average value of the multiple measurement values is calculated to obtain the dimension H 1 ；
Similarly, the second subsidiary output branch 71 has a dimension W in the second direction Y 2 And the above dimension W 1 In the same manner as the measurement of the dimension H along the third direction Z 2 As above dimension H 1 The measurement modes of the (c) are the same, and the utility model is not repeated.
In practical applications, the BDU assembly 3 further includes a pre-charge assembly 35, a PTC circuit fuse 36, a hall sensor 37, and a battery circuit fuse 38. In some embodiments, referring to fig. 3, a pre-charge assembly 35 is connected in parallel with the first relay 33. The PTC circuit fuse 36 is connected in parallel to the first main output line 4. The battery loop fuse 38 is connected in series with one of the connection tabs 203. The second main output line 6 is provided through the hall sensor 37. Along the first direction X, the first relay 33, the first main output line 4, the pre-charging assembly 35, the PTC circuit fuse 36 and the battery circuit fuse 38 are located at the same end of the installation cavity 10 and are uniformly distributed in the first arrangement space 100, and the second relay 34, the second main output line 6 and the hall sensor 37 are located at the same end of the installation cavity 10 and are uniformly distributed in the second arrangement space 200, so that the arrangement and connection of each assembly of the BDU assembly 3 are facilitated, the sizes of the first electrical connection assembly and the second electrical connection assembly can be optimized, and the wire arrangement efficiency of the battery pack can be improved.
In practice, the battery pack also includes a PTC interface 400 connected to the PTC circuit fuse 36. In some embodiments, referring to fig. 3, in the first direction X, the PTC interface 400 and the PTC circuit fuse 36 are located at the same end of the case 1, the PTC interface 400 is disposed on the case 1 corresponding to the first disposition space 100, and the PTC interface 400 and the PTC circuit fuse 36 at least partially overlap in projection on a plane perpendicular to the first direction X. That is, the PTC interface 400 corresponds to the PTC circuit fuse 36 at least partially in the first direction X, and the two are closely spaced apart, so that the practical length of the connecting wire connecting the two can be optimized, and the connection between the PTC interface 400 and the PTC circuit fuse 36 can be simplified.
In some embodiments, as shown in fig. 5 to 7, each of the first and second relays 33 and 34 at least partially overlaps with the projection of the third arrangement space 300 on the plane perpendicular to the first direction X, the sides of the first and second relays 33 and 34 facing away from the lower case 11 are connection sides, and the input and output ends of the first and second relays 33 and 34 are located on the connection sides thereof, based on which, as shown in fig. 6, the first sub output branch line 51 includes a first connection section 511, and the first sub output main line 52 includes a second connection section 521, the first and second connection sections 511 and 521 being connected to each other and to the output end of the first relay 33, and the first and second connection sections 511 and 521 each extending in the first direction X to facilitate connection of the first sub output line 5 to the first relay 33. Referring to fig. 7, the second sub output branch line 71 includes a third connection section 711, the second sub output main line 72 includes a fourth connection section 721, the third connection section 711 and the fourth connection section 721 are connected to each other and to the output terminal of the second relay 34, and the third connection section 711 and the fourth connection section 721 each extend in the first direction X so as to connect the second sub output line 7 to the second relay 34.
In some embodiments, as described above, the sides of the first and second relays 33 and 34 facing away from the lower case 11 are connection sides, and the input and output terminals of the first and second relays 33 and 34 are located on the connection sides thereof, and the battery pack further includes the first and second protection covers 500 and 600 as shown with reference to fig. 3 and 4. The first protection cover 500 is disposed on the first relay 33 and covers the input end and the output end of the first relay 33, so as to protect the first relay 33; the second protection cover 600 is disposed on the second relay 34 and covers the input end and the output end of the second relay 34, and plays a role of protecting the second relay 34.
In some embodiments, referring to FIG. 11, the minimum distance between the first relay 33 and the second relay 34 along the first direction X is D 1 mm, the maximum size of the box body 1 is D 2 mm, satisfy: d is 0.5 < 1 /D 2 < 0.9. Wherein D is 1 /D 2 May be in the range of one or any two of 0.53, 0.58, 0.60, 0.64, 0.68, 0.73, 0.77, 0.80, 0.82, 0.88. D when the size of the battery pack 2 in the first direction X is fixed 1 /D 2 The larger the value of (a), the larger the distance between the first relay 33 and the second relay 34The distance between the first relay 33 and the second relay 34 and the battery pack 2 can be set larger, so that the first electric connection assembly and the second electric connection assembly are convenient for wiring, the volume utilization rate of the battery pack is higher at the moment, but the closer the first relay 33 and the second relay 34 are to the edge of the box body 1, the more easily damaged the collision process is, and the safety of the battery pack is reduced; conversely, the smaller the distance is, the smaller the distance between the first relay 33 and the second relay 34 and the battery pack 2 is, the farther the first relay 33 and the second relay 34 are away from the edge of the case 1, the volume utilization rate of the battery pack is reduced, and the safety of the battery pack is increased; when 0.5 < D 1 /D 2 When the volume of the battery pack is less than 0.9, the safety and the volume utilization rate of the battery pack can be considered.
In some embodiments, 0.55 < D 1 /D 2 And less than 0.85 to better consider the safety and the volume utilization rate of the battery pack.
In some embodiments, 0.65 < D 1 /D 2 And less than 0.75 to better compromise the safety and volume utilization of the battery pack.
In some embodiments 1300 < D 2 ＜2500，650＜D 1 ＜2250。
In some embodiments, 1500 < D 2 ＜2000，750＜D 1 ＜1800。
Specifically, a minimum distance D between the first relay 33 and the second relay 34 1 mm, maximum dimension D of case 1 2 mm, can be measured by conventional length measuring tools. When measuring the minimum distance D between the first relay 33 and the second relay 34 1 In the first direction X, the side surface of the first relay 33 close to the second relay 34 is used as a first measurement reference surface, the side surface of the second relay 34 close to the first relay 33 is used as a second reference surface, the sizes of the first measurement reference surface and the second measurement reference surface are measured for multiple times to obtain multiple measured values, and the average value of the multiple measured values is calculated to obtain the distance D 1 . When measuring the maximum dimension D of the case 1 2 In the first direction X, the two end faces of the box body 1 are taken as measuring reference faces, the sizes of the two end faces are measured for a plurality of times, To obtain multiple measured values, and calculate the average value of the multiple measured values to obtain the dimension D 2 。
Examples 1 to 17:
there is provided a battery pack including a case 1, a battery pack 2 and a BDU assembly 3, wherein the case 1 includes a lower case 11 and a case cover 12, the lower case 11 is provided with a first mounting groove, the case cover 12 is connected with the lower case 11, the case cover 12 is provided with a second mounting groove, and the first mounting groove and the second mounting groove cooperate to form a mounting cavity 10. The battery pack 2 and BDU assembly 3 are disposed within the mounting cavity 10.
The battery pack 2 is provided with a first total output electrode 201 and a second total output electrode 202. The battery pack 2 includes a plurality of unit cells arranged in the first direction X and the second direction Y in the mounting chamber 10, and the plurality of unit cells are connected in series through the connection piece 203. One of the first total output electrode 201 and the second total output electrode 202 is a total positive output electrode, and the other is a total negative output electrode.
The BDU assembly 3 includes a first high voltage connector 31, a second high voltage connector 32, a first relay 33, a second relay 34, a first electrical connection assembly, and a second electrical connection assembly. One of the first relay 33 and the second relay 34 is a main positive relay, and the other is a main negative relay.
Wherein a first high-voltage connector 31 and a second high-voltage connector 32 are provided at both ends of the case 1 in the first direction X, respectively. The first relay 33 and the second relay 34 are respectively disposed at two ends of the mounting cavity 10 along the first direction X, the first high-voltage connector 31 and the first relay 33 are disposed at intervals along the first direction X, and the second high-voltage connector 32 and the second relay 34 are disposed at intervals along the first direction X. The first electrical connection assembly extends at least partially along the first direction X, the first electrical connection assembly connecting the first total output pole 201, the first relay 33, and the first and second high voltage connectors 31, 32; the second electrical connection assembly extends at least partially along the first direction X, and connects the second total output pole 202, the second relay 34, and the first and second high voltage connectors 32.
The battery packs of the examples were subjected to a simulated crash test and vibration test using GB38031-2020, and the data are as follows:
| examples | D 1 /D 2 | W 1 /H 1 | W 2 /H 2 | Volume utilization rate | Collision safety | Insulation resistor |
| Example 1 | 0.51 | 0.200 | 0.200 | 51.53％ | Satisfy the following requirements | ≥100Ω/V |
| Example 2 | 0.67 | 0.200 | 0.200 | 54.87％ | Satisfy the following requirements | ≥100Ω/V |
| Example 3 | 0.87 | 0.200 | 0.200 | 58.65％ | Satisfy the following requirements | ≥100Ω/V |
| Example 4 | 0.86 | 0.200 | 0.200 | 60.33％ | Satisfy the following requirements | ≥100Ω/V |
| Example 5 | 0.88 | 0.200 | 0.200 | 60.76％ | Satisfy the following requirements | ≥100Ω/V |
| Example 6 | 0.76 | 0.200 | 0.200 | 56.77％ | Satisfy the following requirements | ≥100Ω/V |
| Example 7 | 0.72 | 0.200 | 0.200 | 55.66％ | Satisfy the following requirements | ≥100Ω/V |
| Example 8 | 0.68 | 0.200 | 0.200 | 54.99％ | Satisfy the following requirements | ≥100Ω/V |
| Example 9 | 0.76 | 0.050 | 0.050 | 56.87％ | Satisfy the following requirements | ≥100Ω/V |
| Example 10 | 0.76 | 0.100 | 0.100 | 56.59％ | Satisfy the following requirements | ≥100Ω/V |
| Example 11 | 0.76 | 0.300 | 0.300 | 56.54％ | Satisfy the following requirements | ≥100Ω/V |
| Examples12 | 0.76 | 0.450 | 0.450 | 56.51％ | Satisfy the following requirements | ≥100Ω/V |
| Example 13 | 0.76 | 0.133 | 0.130 | 54.91％ | Satisfy the following requirements | ≥100Ω/V |
| Example 14 | 0.76 | 0.100 | 0.100 | 54.82％ | Satisfy the following requirements | ≥100Ω/V |
| Example 15 | 0.76 | 0.080 | 0.080 | 54.66％ | Satisfy the following requirements | ≥100Ω/V |
| Example 16 | 0.78 | 0.200 | 0.200 | 56.69％ | Satisfy the following requirements | ≥100Ω/V |
| Example 17 | 0.47 | 0.200 | 0.200 | 49.78％ | Satisfy the following requirements | ≥100Ω/V |
As can be seen from the above examples, at 0.5 < D 1 /D 2 Within the range of < 0.9, D 1 /D 2 The larger the value of (D) is, the higher the volume utilization rate of the battery pack is, and D is 1 /D 2 The smaller the value of (C) is, the smaller the volume utilization rate of the battery pack is, but the collision safety can be met, when D 1 /D 2 When the volume utilization rate is less than 0.5, the volume utilization rate is too small; at 0.01 < W 1 /H 1 < 0.5 or 0.01 < W 2 /H 2 When the value is less than 0.5, the larger the value is, the smaller the volume utilization rate is, and the larger the volume utilization rate is, but the insulation resistance is not lower than 100 ohm/V, namely the requirement of GB38031 2020 is met.
The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and substitutions can be made by those skilled in the art without departing from the technical principles of the present utility model, and these modifications and substitutions should also be considered as being within the scope of the present utility model.
Claims (11)
1. A battery pack, comprising:
a box body (1) provided with an installation cavity (10);
a battery pack (2) disposed within the mounting cavity (10); the battery pack (2) is provided with a first total output electrode (201) and a second total output electrode (202);
BDU subassembly (3) set up in mounting cavity (10), its characterized in that, BDU subassembly (3) include:
a first high-voltage connector (31) and a second high-voltage connector (32) which are respectively arranged at two ends of the box body (1) along a first direction (X);
a first relay (33) and a second relay (34) respectively arranged at two ends of the mounting cavity (10) along a first direction (X); the first high-voltage connector (31) and the first relay (33) are arranged at intervals along the first direction (X), and the second high-voltage connector (32) and the second relay (34) are arranged at intervals along the first direction (X);
a first electrical connection assembly extending at least partially along a first direction (X), said first electrical connection assembly connecting said first total output pole (201), said first relay (33) and said first and second high voltage connectors (31, 32);
-a second electrical connection assembly extending at least partially along a first direction (X), said second electrical connection assembly connecting said second total output pole (202), said second relay (34) and said first high voltage connector (31) and said second high voltage connector (32).
2. The battery pack of claim 1, wherein the first electrical connection assembly comprises:
a first main output line (4) connecting the first total output electrode (201) and an input terminal of the first relay (33);
a first auxiliary output line (5), wherein the first high-voltage connector (31) and the second high-voltage connector (32) are connected with the output end of the first relay (33) through the first auxiliary output line (5);
the second electrical connection assembly includes:
a second main output line (6) connecting the second total output electrode (202) and an input terminal of the second relay (34);
and a second sub-output line (7), wherein the first high-voltage connector (31) and the second high-voltage connector (32) are connected with the output end of the second relay (34) through the second sub-output line (7).
3. The battery pack according to claim 1, wherein the case (1) includes:
a body defining the mounting cavity (10);
a separation beam (8) which is arranged in the mounting cavity (10) and is connected with the body, wherein the separation beam (8) separates the mounting cavity (10) to form a first cavity (101) and a second cavity (102) which are distributed along the first direction (X);
the battery pack (2) includes:
A first battery module (21) provided in the first chamber (101);
a second battery module (22) and a third battery module (23) provided in the second chamber (102) and arranged at intervals in the first direction (X);
-along the first direction (X), the first battery module (21) and a cavity wall of the first chamber (101) define a first arrangement space (100); -the second battery module (22), the third battery module (23) and the cavity wall of the second chamber (102) define a second arrangement space (200);
the first relay (33) is arranged in the first arrangement space (100), and the first total output electrode (201) is arranged on the first battery module (21) and is positioned on one side of the first battery module (21) facing the first arrangement space (100); the second relay (34) is arranged in the second arrangement space (200), and the second total output electrode (202) is arranged on the second battery module (22) and is positioned on one side of the second battery module (22) facing the second arrangement space (200).
4. The battery pack according to claim 1, wherein the battery pack (2) includes a plurality of unit cells arranged in a first direction (X) and a second direction (Y), at least part of adjacent unit cells defining a third arrangement space (300) extending in the first direction (X), the first direction (X) intersecting the second direction (Y);
The first electrical connection assembly includes:
a first auxiliary output branch line (51) penetrating through the third arrangement space (300), wherein one end of the first auxiliary output branch line (51) is connected with the output end of the first relay (33), and the other end is connected with the second high-voltage connector (32);
the second electrical connection assembly includes:
a second sub output branch line (71) penetrating through the third arrangement space (300); one end of the second auxiliary output branch line (71) is connected with the output end of the second relay (34), and the other end is connected with the first high-voltage connector (31).
5. The battery pack of claim 4, wherein the battery pack further comprises:
the fixed bracket (9) is arranged in the third arrangement space (300) and is fixedly connected to the box body (1); the fixed support (9) is provided with a first clamping groove (91) and a second clamping groove (92) at intervals along a second direction (Y), the first auxiliary output branch line (51) is fixedly arranged on the first clamping groove (91) in a penetrating mode, and the second auxiliary output branch line (71) is fixedly arranged on the second clamping groove (92) in a penetrating mode.
6. The battery pack according to claim 4, wherein the first secondary output leg (51) has a dimension W in the second direction (Y) 1 mm, dimension H in the third direction (Z) 1 mm, satisfy: w is more than 0.01 1 /H 1 < 0.5; and/or the second subsidiary output branch (71) has a dimension W in the second direction (Y) 2 mm, dimension H in the third direction (Z) 2 mm, satisfy: w is more than 0.01 2 /H 2 ＜0.5。
7. The battery pack according to claim 1, wherein the BDU assembly (3) further includes:
a pre-charge assembly (35) connected in parallel with the first relay (33);
a PTC circuit fuse (36) connected in parallel to the first electrical connection assembly;
a hall sensor (37), at least part of the second electric connection assembly penetrates through the hall sensor (37);
-along a first direction (X), the pre-charging assembly (35), the PTC circuit fuse (36) and the first relay (33) are located at the same end of the mounting cavity (10); the hall sensor (37) and the second relay (34) are located at the same end of the mounting cavity (10).
8. The battery pack according to claim 1, wherein the BDU assembly (3) further includes:
a PTC circuit fuse (36) connected in parallel to the first electrical connection assembly;
the battery pack further includes:
the PTC interface (400) is arranged on the box body (1);
along a first direction (X), the PTC interface (400) and the PTC circuit fuse (36) are located at the same end of the housing (1), and the PTC interface (400) and the PTC circuit fuse (36) are at least partially overlapping in their projection onto a plane perpendicular to the first direction (X).
9. The battery pack of claim 1, wherein the battery pack further comprises:
a first protection cover (500) which is provided on the first relay (33) and covers the first relay (33);
and a second protection cover (600) which is arranged on the second relay (34) and covers the second relay (34).
10. The battery pack according to claim 1, wherein a minimum distance between the first relay (33) and the second relay (34) in the first direction (X) is D 1 mm, the maximum size of the box body (1) is D 2 mm, satisfy: d is 0.5 < 1 /D 2 ＜0.9。
11. A vehicle comprising a battery pack according to any one of claims 1-10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321249094.7U CN219959292U (en) | 2023-05-22 | 2023-05-22 | Battery pack and vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321249094.7U CN219959292U (en) | 2023-05-22 | 2023-05-22 | Battery pack and vehicle |
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| CN219959292U true CN219959292U (en) | 2023-11-03 |
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| CN202321249094.7U Active CN219959292U (en) | 2023-05-22 | 2023-05-22 | Battery pack and vehicle |
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| CN (1) | CN219959292U (en) |
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