CN209880686U - Battery box and battery box body - Google Patents
Battery box and battery box body Download PDFInfo
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- CN209880686U CN209880686U CN201920627653.0U CN201920627653U CN209880686U CN 209880686 U CN209880686 U CN 209880686U CN 201920627653 U CN201920627653 U CN 201920627653U CN 209880686 U CN209880686 U CN 209880686U
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- battery box
- box body
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model relates to a power battery technical field, concretely relates to battery box and battery box. The battery box includes battery box and the group's electric core of fixed mounting in the battery box, and the battery box includes box and upper cover down, and the internal fixed anticollision bounding wall that is equipped with of lower box, anticollision bounding wall have the leg that corresponds with each tank wall of box down, and the leg sets up with the tank wall interval, and the leg of anticollision bounding wall encloses into the installation cavity of installing group's electric core, goes to the protruding structure that is equipped with of corresponding tank wall on the anticollision bounding wall. The integral surrounding wall has higher strength and anti-extrusion capacity so as to absorb impact or extrusion from the outside and protect the grouped electric cores in the mounting cavity; the protruding structure is out of shape after suffering external striking or extrusion, can absorb certain striking or extrusion energy to play the effect of protection battery core in groups, and the inboard of leg forms the installation cavity, makes the structure of battery box compact relatively, and space utilization is high, has guaranteed that the battery box has higher energy density.
Description
Technical Field
The utility model relates to a power battery technical field, concretely relates to battery box and battery box.
Background
The battery box is used as a power source, and when the battery box is installed on a vehicle, the installation stability and good impact resistance of the battery box are required to be ensured, and particularly, when the vehicle runs on a bumpy road surface, the normal operation of the battery box is ensured. A common approach is to assemble plastic anti-collision protection plates at the positive and negative output poles of the battery cells in the battery box, but this approach has more limitations, such as: the anti-collision plate has a small protection area, can generally only protect the positions of the positive output electrode and the negative output electrode, and can not effectively protect the battery cell when the battery box is impacted by external force in other directions to generate extrusion, so that the battery cell can generate liquid leakage and even fire explosion; the plastic anti-collision plate needs to be produced by a special die, so that the die opening cost is high; the plastic anti-collision plate is generally thick in thickness so as to have good anti-extrusion performance, so that a large installation space is needed, if the space of the battery box is limited, the plastic installation plate cannot be installed, and if enough installation space is reserved in the battery box, the energy density of the battery pack is reduced, and the product competitiveness is reduced; the anti-collision plate can only passively receive external force impact, the impact is resisted by the strength of the self material, and after the self material is plastically deformed, the anti-collision capacity is reduced.
In view of the above situation, chinese utility model patent document No. CN206225423U discloses a battery box and an electric vehicle. At least one side of this battery box is provided with energy-absorbing part and anticollision part, and is concrete, and the anticollision part is crashproof roof beam or the hollow structure or the U-shaped groove structure that form by at least two-layer metal sheet, and the anticollision part sets up in the most periphery of battery box, and the energy-absorbing part sets up between anticollision part and box. The anti-collision component and the energy absorption component can better absorb impact or extrusion from the outside, and the battery box is better protected.
However, the battery box still has certain disadvantages: anticollision part and energy-absorbing part all set up in the periphery of battery box, and the hollow structure that two-layer metal sheet formed can occupy great space, have directly increased the volume and the occupation space of whole battery box, under the limited condition of battery box installation space, have led to placing the battery core energy density in groups in the battery box and have reduced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a battery box with high energy density and good anti-collision performance; an object of the utility model is to provide a battery box not only has good crashworthiness, also can guarantee that the battery box that uses this kind of battery box has higher energy density.
In order to achieve the above object, the utility model discloses battery box adopts following technical scheme:
the battery box, including battery box and the group's electric core of fixed mounting in the battery box, the battery box includes box and upper cover down, the internal fixed anticollision bounding wall that becomes integral structure that is equipped with of lower box, the anticollision bounding wall has the leg that corresponds with each tank wall of box down, the leg sets up with the tank wall interval, the installation cavity of installing group's electric core is enclosed into to the leg of anticollision bounding wall, towards corresponding the protruding at least two protruding structures that are equipped with of tank wall on at least one leg of anticollision bounding wall.
The beneficial effects of the above technical scheme are: the integral surrounding wall has higher strength and anti-extrusion capacity, can absorb impact or extrusion from the outside and protects the grouped electric cores in the mounting cavity; the protruding structure is out of shape after suffering external striking or extrusion, can absorb certain striking or extrusion energy to play the effect of protection battery core in groups, and the inboard of leg forms the installation cavity, makes the structure of battery box compact relatively, and space utilization is high, has guaranteed that the battery box has higher energy density.
Further, the convex structure is in contact with the corresponding tank wall. The tank wall can carry on spacingly to the enclosure wall, avoids the enclosure wall drunkenness in the box.
Further, the medial surface of leg with organize electric core contact and press from both sides between the tank wall and organize electric core, realize with the relatively fixed of lower box. The arrangement does not need to fix the surrounding wall with the lower box body independently, and is convenient for assembling and disassembling the anti-collision surrounding plate.
Furthermore, an energy absorption structure is arranged between the protruding structures. The energy-absorbing structure can absorb energy, so that the battery box can absorb more external impact or extrusion energy.
Furthermore, the protruding structures are convex ribs, two adjacent convex ribs and the corresponding box wall form a closed space in a surrounding mode, and the energy absorption structure is located in the closed space. The closed space can limit the deformation direction of the energy-absorbing structure, so that the deformation direction is only in the direction of impact or extrusion to the battery box from the outside, and the energy-absorbing structure cannot be extruded to one side to lose the energy-absorbing function.
Further, the convex rib is a U-shaped convex rib formed on the surrounding wall in a stamping mode. The U-shaped convex ribs are of thin-wall structures, so that deformation and energy absorption are easier, and the processing technology is simple.
Further, the energy absorbing structure is a column protrusion formed by stamping on the surrounding wall. The column protrusions can be distributed in a multi-point mode to absorb impact or extrusion from all directions, and the energy absorption effect is good.
Further, the energy absorbing structure is an elastic energy absorbing structure. The elastic energy-absorbing structure has better buffering capacity, can reduce severe vibration caused by external impact or extrusion of the rigid energy-absorbing structure, and has better energy-absorbing effect.
Further, the energy-absorbing structure is a spring with the elastic deformation direction perpendicular to the corresponding box wall. The battery box body is provided with a spring, and the spring is arranged between the battery box body and the battery box body.
Further, the energy absorption structure is made of buffering and vibration absorption materials filled in the closed space. The buffering vibration absorbing material can deform from all directions of the buffering vibration absorbing material, impact or extrusion from all directions can be absorbed, energy absorption is achieved, the battery box has good safety performance in all directions, and the buffering vibration absorbing material has the advantage of light weight.
Furthermore, the lower box body is rectangular, a group of electric core wiring structures are arranged on the front side face of the lower box body, protruding structures are arranged on the leg walls, corresponding to the left box wall, the right box wall and the rear box wall of the lower box body, of the anti-collision coaming, and the energy absorption structures are arranged between the protruding structures. The anti-collision coaming impact-resistant function of the maximum realization can be achieved under the condition that the grouped battery cores on the front side face of the box body are not affected in wiring.
In order to achieve the above object, the utility model discloses battery box adopts following technical scheme:
the battery box, including lower box and upper cover, the internal fixed anticollision bounding wall that becomes integral structure that is equipped with of lower box, the anticollision bounding wall have with the leg that each tank wall of lower box corresponds, the leg sets up with the tank wall interval, the leg of anticollision bounding wall encloses the installation cavity that becomes the installation of electric core in groups, goes to the orientation and corresponds the protruding at least two protruding structures that are equipped with of tank wall on at least one leg of anticollision bounding wall.
The beneficial effects of the above technical scheme are: the integral surrounding wall has higher strength and anti-extrusion capacity, can absorb impact or extrusion from the outside and protects the grouped electric cores placed in the mounting cavity; the protruding structure is out of shape after suffering external striking or extrusion, can absorb certain striking or extrusion energy to play the protection and be used for placing the effect at the battery core of group of installation intracavity, and the inboard formation of leg is used for installing the installation cavity of electric core of group, makes the structure of battery box compacter, also can guarantee that the battery box that uses this kind of battery box has higher energy density.
Further, the convex structure is in contact with the corresponding tank wall. The tank wall can carry on spacingly to the enclosure wall, avoids the enclosure wall drunkenness in the box.
Further, the medial surface of leg with organize electric core contact and press from both sides between the tank wall and organize electric core, realize with the relatively fixed of lower box. The arrangement does not need to fix the surrounding wall with the lower box body independently, and is convenient for assembling and disassembling the anti-collision surrounding plate.
Furthermore, an energy absorption structure is arranged between the protruding structures. The energy-absorbing structure can absorb energy, so that the battery box can absorb more external impact or extrusion energy.
Furthermore, the protruding structures are convex ribs, two adjacent convex ribs and the corresponding box wall form a closed space in a surrounding mode, and the energy absorption structure is located in the closed space. The closed space can limit the deformation direction of the energy-absorbing structure, so that the deformation direction is only in the direction of impact or extrusion to the battery box from the outside, and the energy-absorbing structure cannot be extruded to one side to lose the energy-absorbing function.
Further, the convex rib is a U-shaped convex rib formed on the surrounding wall in a stamping mode. The U-shaped convex ribs are of thin-wall structures, so that deformation and energy absorption are easier, and the processing technology is simple.
Further, the energy absorbing structure is a column protrusion formed by stamping on the surrounding wall. The column protrusions can be distributed in a multi-point mode to absorb impact or extrusion from all directions, and the energy absorption effect is good.
Further, the energy absorbing structure is an elastic energy absorbing structure. The elastic energy-absorbing structure has better buffering capacity, can reduce severe vibration caused by external impact or extrusion of the rigid energy-absorbing structure, and has better energy-absorbing effect.
Further, the energy-absorbing structure is a spring with the elastic deformation direction perpendicular to the corresponding box wall. The battery box body is provided with a spring, and the spring is arranged between the battery box body and the battery box body.
Further, the energy absorption structure is made of buffering and vibration absorption materials filled in the closed space. The buffering vibration absorbing material can deform from all directions of the buffering vibration absorbing material, impact or extrusion from all directions can be absorbed, energy absorption is achieved, the battery box has good safety performance in all directions, and the buffering vibration absorbing material has the advantage of light weight.
Furthermore, the lower box body is rectangular, a group of electric core wiring structures are arranged on the front side face of the lower box body, protruding structures are arranged on the leg walls, corresponding to the left box wall, the right box wall and the rear box wall of the lower box body, of the anti-collision coaming, and the energy absorption structures are arranged between the protruding structures. The anti-collision coaming impact-resistant function of the maximum realization can be achieved under the condition that the grouped battery cores on the front side face of the box body are not affected in wiring.
Drawings
Fig. 1 is a schematic structural diagram of a battery box body in a first embodiment of the battery box of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
fig. 3 is a schematic structural view of a battery box body in a second embodiment of the battery box of the utility model;
FIG. 4 is an enlarged view of a portion of FIG. 3 at B;
FIG. 5 is a schematic structural view of an anti-collision coaming of a battery box body in the first and second embodiments;
fig. 6 is a schematic structural view of an anti-collision surrounding plate of a battery box body in a third embodiment of the battery box of the present invention;
description of reference numerals: 1-lower box body, 2-anti-collision coaming, 201-enclosure wall, 202-convex rib, 3-spiral spring, 4-foam, 5-column convex and 6-installation cavity.
Detailed Description
The following further describes the embodiments of the present invention with reference to the attached drawings:
the utility model discloses the first embodiment of battery box:
the battery box includes the battery box, as shown in fig. 1, fig. 2 and fig. 5, the battery box includes box 1 and upper cover (not shown in the figure) down, be provided with crashproof bounding wall 2 in the box 1 down, crashproof bounding wall 2 becomes integral structure, higher intensity and anti extrusion capacity have, crashproof bounding wall 2 has the leg 201 that corresponds with each tank wall of box 1 down, leg 201 sets up with the tank wall interval, the leg 201 of its crashproof bounding wall 2 encloses into installation cavity 6 jointly, installation cavity 6 is used for installing battery core in groups.
Lower box 1 is the rectangle, the wiring structure place side that sets up electric core in groups is the front side, left side under box 1, all be equipped with many places protruding structure on the leg 201 of the correspondence of right side tank wall and back tank wall, protruding muscle 202 promptly, it is specific, protruding muscle 202 is the U-shaped, because the protruding muscle of U-shaped is thin wall structure, change the deformation energy-absorbing, and processing technology is simple, the angle is an a between the side of protruding muscle 202 and leg 201, in actual work, angle an can set up to the different value according to the difference of external extrusion force, protruding muscle 202 with correspond the tank wall contact, after suffering external striking or extrusion, protruding muscle 202 warp, can absorb certain striking or extrusion energy, thereby play the effect of protection installation in the electric core of group in installation cavity 6, also can avoid leg 201 to take place the drunkenness and with down between the box 1 the collision. Two adjacent protruding muscle 202 enclose into the enclosure space with corresponding tank wall, all be equipped with the energy-absorbing structure in each enclosure space, specifically be elastic energy-absorbing structure, coil spring 3 promptly, coil spring 3's elastic deformation direction perpendicular to corresponds the tank wall, like this, coil spring 3 not only can be fine the absorption come from external striking or extrusion, play the cushioning effect, and when striking or extrusion reduce, can also pop out coil spring 3's elastic force release and produce striking or extruded object to the battery box, and simultaneously, the enclosure space also can restrict coil spring 3's deformation direction, make its deformation direction only in the external direction to the battery box striking or extruded, and can not make coil spring 3 be crowded to one side, thereby lose the energy-absorbing function.
When the anti-collision coaming 2 is installed, the inner side surface of the enclosure wall 201 is in contact with the grouped electric cores and clamped between the box wall and the grouped electric cores, so that the anti-collision coaming 2 and the lower box body 1 are fixed, the enclosure wall 201 does not need to be fixed with the lower box body 1 independently, and the assembly and disassembly of the anti-collision coaming 2 are facilitated; on the other hand, the battery cores are bonded in the installation cavity 6 of the lower box body 1 after being bundled up, and the battery cores and the lower box body 1 are fixed.
Because the left side of box 1 down, all be equipped with many places protruding structure on the leg 201 of right side tank wall and back tank wall, protruding muscle 202 promptly, and all be equipped with coil spring 3 between the protruding muscle 202, like this, under the circumstances of the group electric core wiring of the leading flank of box 1 under not influencing, the function of shocking resistance of realization anticollision bounding wall 2 that can the maximize, simultaneously, because the inboard of leg 201 forms the installation cavity, make the structure of battery box compact relatively, space utilization is high, it has higher energy density to have guaranteed that the battery box has.
In the first embodiment, the direction of elastic deformation of the coil spring is perpendicular to the corresponding tank wall. In other embodiments, the helical spring may also be arranged obliquely, i.e. the direction of elastic deformation of the helical spring is at an angle to the wall of the tank.
In a first embodiment, the energy-resilient structure is a spring, in particular a helical spring. In other embodiments, the spring may also be embodied as a disc spring or a leaf spring. The elastically energy-absorbing structure may also be an airbag.
The utility model discloses the second embodiment of battery box:
the battery box comprises a battery box body, as shown in fig. 3 to 5, the battery box body is basically the same as the battery box body in the above embodiment, and the difference is that the buffering and vibration absorbing material is used as an elastic energy absorption structure, namely, foam 4, and the foam 4 can deform from each direction, namely, can absorb external extrusion from each direction, so that not only is energy absorption realized, but also the battery box has better safety performance in each direction, and the weight is lighter. In this embodiment, the specific form and arrangement of the surrounding wall and the ribs in the crashproof surrounding panel are the same as those in the above embodiment, and are not described again here.
In the second embodiment, the buffering and vibration absorbing material is foam. In other embodiments, the shock absorbing material may be silicone rubber.
The utility model discloses the third embodiment of battery box:
the battery box comprises a battery box body which is basically the same as the battery box body in the above embodiment, and as shown in fig. 6, the difference is that the energy absorption structure on the surrounding wall 201 is provided with three column protrusions 5 formed by stamping, each column protrusion 5 is a rigid structure, the number of the column protrusions 5 in each closed space is three, the column protrusions 5 are distributed in a multi-point manner, impact or extrusion from all directions can be better absorbed, and the energy absorption effect is better. In this embodiment, the specific form of the ribs in the impact shroud and the arrangement manner of the impact shroud are the same as those in the above embodiments, and are not described again here.
In a third embodiment, the energy absorbing structure formed by stamping is a stud bump, and the number of stud bumps in each enclosed space is three. In other embodiments, the number of the post protrusions in each enclosed space can be one, two or other numbers according to actual needs, and of course, the post protrusions can also be protrusions with other shapes, such as spherical protrusions.
In the above three embodiments, the three surrounding walls of the anti-collision surrounding plate are all provided with the protruding structures. In other embodiments, the raised formations may be provided on only one or both walls of the crash panel.
In the above three embodiments, the number of the protruding structures on the peripheral wall provided with the protruding structures is multiple. In other embodiments, the number of the protruding structures on the peripheral wall provided with the protruding structures may also be two, three, or other numbers according to actual needs.
In the above three embodiments, an energy absorbing structure is disposed between adjacent raised structures. In other embodiments, the number of the energy absorbing structures can be increased or decreased according to actual needs, or the energy absorbing structures are not arranged.
In the above three embodiments, the protruding structure is a U-shaped rib, and is formed by stamping. In other embodiments, the protruding structure may also be a bump, and the bump is fixed on the surrounding wall by welding.
In above-mentioned three kinds of embodiments, the crashproof bounding wall contacts and presss from both sides between the tank wall and battery core in groups through the medial surface of leg and battery core in groups, and at this moment, protruding structure with correspond the tank wall contact. In other embodiments, the anticollision bounding wall can be fixed in the lower box through welding or bonding, and at this moment, the anticollision bounding wall can not contact with the battery cell of group in the installation intracavity that the leg formed, and on the other hand, protruding structure also can not contact with corresponding tank wall, but the clearance of the two should not be too big.
The utility model discloses the concrete embodiment of battery box:
the structure of the battery box body is the same as that of the battery box body in the above embodiment, and the description is omitted here.
Claims (12)
1. Battery box, its characterized in that: including lower box and upper cover, the internal fixed anticollision bounding wall that becomes integral structure that is equipped with of lower box, anticollision bounding wall have with the leg that each tank wall of lower box corresponds, leg and tank wall interval set up, the leg of anticollision bounding wall encloses into the installation cavity of installing electric core in groups, goes to the protruding at least two protruding structures that are equipped with of corresponding tank wall on at least one leg of anticollision bounding wall.
2. The battery box body of claim 1, wherein: the convex structures are in contact with the corresponding box walls.
3. The battery box body of claim 2, wherein: the medial surface of leg contacts and presss from both sides between the tank wall and battery cell in groups with battery cell in groups, realizes the relatively fixed with lower box.
4. The battery box body according to any one of claims 1 to 3, characterized in that: and an energy absorption structure is arranged between the convex structures.
5. The battery box body of claim 4, wherein: the protruding structures are convex ribs, two adjacent convex ribs and the corresponding box wall form a closed space in an enclosing mode, and the energy absorbing structure is located in the closed space.
6. The battery box body of claim 5, wherein: the convex rib is a U-shaped convex rib formed on the surrounding wall in a stamping mode.
7. The battery box body of claim 4, wherein: the energy absorbing structure is a column protrusion formed by stamping on the surrounding wall.
8. The battery box body of claim 4, wherein: the energy absorbing structure is an elastic energy absorbing structure.
9. The battery box body of claim 8, wherein: the energy-absorbing structure is a spring with the elastic deformation direction perpendicular to the corresponding box wall.
10. The battery box body of claim 8, wherein: the energy absorption structure is made of buffering and vibration absorption materials filled in the closed space.
11. The battery box body of claim 4, wherein: the lower box body is rectangular, a group of electric core wiring structures are arranged on the front side face of the lower box body, and the collision-proof surrounding walls corresponding to the left and right box walls of the lower box body and the surrounding walls of the rear box walls are provided with the protruding structures, and the energy-absorbing structures are arranged between the protruding structures.
12. The battery box comprises a battery box body and a group of battery cells fixedly installed in the battery box body, and is characterized in that: the battery box body is the battery box body of any one of claims 1 to 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920627653.0U CN209880686U (en) | 2019-05-05 | 2019-05-05 | Battery box and battery box body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920627653.0U CN209880686U (en) | 2019-05-05 | 2019-05-05 | Battery box and battery box body |
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| Publication Number | Publication Date |
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| CN209880686U true CN209880686U (en) | 2019-12-31 |
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| CN201920627653.0U Active CN209880686U (en) | 2019-05-05 | 2019-05-05 | Battery box and battery box body |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111900280A (en) * | 2019-05-05 | 2020-11-06 | 郑州深澜动力科技有限公司 | Battery box and battery box body |
| DE102021130477A1 (en) | 2021-11-22 | 2023-05-25 | Man Truck & Bus Se | Electrical energy storage device for a motor vehicle |
-
2019
- 2019-05-05 CN CN201920627653.0U patent/CN209880686U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111900280A (en) * | 2019-05-05 | 2020-11-06 | 郑州深澜动力科技有限公司 | Battery box and battery box body |
| DE102021130477A1 (en) | 2021-11-22 | 2023-05-25 | Man Truck & Bus Se | Electrical energy storage device for a motor vehicle |
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