Battery pack box body, battery pack and vehicle
By combining a frame structure and foaming materials, the problems of poor insulation and easy damage to the battery pack enclosure were solved, achieving efficient insulation, improved stability, and reduced costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-15
- Publication Date
- 2026-03-27
Smart Images
Figure CN224053262U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to power battery technical field, specifically provide a battery package box, battery package and vehicle. BACKGROUND
[0002] With the development of society, in order to reduce the pollution of automobile exhaust to atmosphere, at present, new energy vehicles such as lithium battery obtain vigorous promotion, as the power source of new energy vehicle, the running efficiency of vehicle-mounted battery is greatly influenced by ambient temperature, for example, in the case of excessively high or low temperature, the charge-discharge efficiency of battery and battery effective capacity will greatly reduce. The current technology is to install heat preservation bubble cotton on the box body, which can play the heat preservation effect, but the inner cavity structure of the box body die casting is complex, there are more special-shaped structures and special-shaped spaces, the filling of conventional bubble cotton makes the heat preservation effect bad, if using formed bubble cotton, its process is complex, and the cost is higher. The heat preservation part of the battery package box body is exposed outside, in the driving process of the vehicle, it is bounced by small stones or foreign matters, and then the structure of the heat preservation part is damaged, the integrity of the heat preservation part is influenced, thereby the heat preservation effect of the box body is reduced, not only this, after the damage of the heat preservation part, the heat preservation effect of the battery package as a whole is poor, which will influence the endurance and service life of the battery package.
[0003] Therefore, a new technical scheme is needed in the field to solve the above problems. UTILITY MODEL CONTENT
[0004] The utility model aims at solving above-mentioned technical problem, provides a battery package box body that can improve heat preservation effect and prolong service life.
[0005] The utility model provides a battery package box body, which comprises:
[0006] The frame comprises a first frame body and a second frame body, the first frame body is connected with the second frame body at the head and tail and surrounds to form a receiving space for accommodating a battery pack;
[0007] The first frame body is provided with a mounting hole connected with the vehicle body, the bottom wall of the first frame body is provided with a first accommodating cavity, the first accommodating cavity is arranged around the mounting hole, and foamed material is arranged in the first accommodating cavity; The lower portion of the foamed material is provided with a baffle.
[0008] In the case of adopting the above technical scheme, the cavity structure of the first accommodating cavity is complex and various in shape, the first accommodating cavity is filled with foaming material, the heat preservation problem of various cavities of different shapes can be well solved, the process is simplified, and the heat preservation foam of different shapes is not needed, the cost is further reduced, and the heat preservation effect can be improved because the foaming material is foamed and filled into the cavity, the gap between the foaming material and the inner wall of the cavity is small, and the foaming material is in close contact with the inner wall of the cavity.
[0009] In the preferred technical scheme of the battery pack box, the ratio of the thickness of the foaming material to the depth of the first accommodating cavity is 1 / 5 to 4 / 5, and / or the thickness of the baffle is 0.2mm to 0.8mm.
[0010] In the case of adopting the above technical scheme, the foaming material has a heat preservation effect, the ratio of the thickness of the foaming material to the depth of the first accommodating cavity is 1 / 5 to 4 / 5, that is, the foaming material does not fill the first accommodating cavity, the cost is saved while the heat preservation effect is ensured. The thickness of the baffle is between 0.2mm and 0.8mm, which is not too thick, has good elasticity and flexibility, can adapt to the complex structure in the first accommodating cavity, and can also save cost.
[0011] In the preferred technical scheme of the battery pack box, the ratio of the thickness of the foaming material to the depth of the first accommodating cavity is 1 / 2, and / or the thickness of the baffle is 0.5mm.
[0012] In the case of adopting the above technical scheme, the ratio of the thickness of the foaming material to the depth of the first accommodating cavity is 1 / 2, that is, the filling thickness of the foaming material is half of the depth of the first accommodating cavity, which maximizes the cost saving while having a good heat preservation effect. The thickness of the baffle is 0.5mm, which also takes into account the convenience of installation, the baffle has good elasticity and flexibility, and the baffle can be conveniently installed in the first accommodating cavity, and the cost is also taken into account.
[0013] In the preferred technical scheme of the battery pack box, the first frame body includes a main body part and a blocking part, the blocking part is arranged between the main body part and the battery pack and connected with the battery pack.
[0014] In the technical scheme, the blocking part is connected with the battery pack, can extrude and fix the battery pack, improves the stability of the battery pack as a whole, and the blocking part can increase the structural strength of the first frame and the rigidity of the battery pack as a whole.
[0015] In the preferred technical scheme of the battery pack box, the main body part is provided with a receiving cavity, a projection of the first receiving cavity in the horizontal direction is arranged on opposite sides of the receiving cavity, and the receiving cavity and the projection of the first receiving cavity in the horizontal direction are not overlapped.
[0016] In the technical scheme, other elements are arranged in the receiving cavity, and the first receiving cavity can heat the elements in the receiving cavity from both sides, thereby achieving good heat preservation effect. The battery pack is increasingly miniaturized, the projection of the receiving cavity and the first receiving cavity in the horizontal direction is not overlapped, the main body part is used in the limited space, the space of other elements in the receiving cavity is met, the space of the first receiving cavity is as large as possible, and good heat preservation effect is achieved, space is reasonably used, and volume is saved.
[0017] In the preferred technical scheme of the battery pack box, the baffle is arranged in the first receiving cavity and is matched with the shape of the foamed material.
[0018] In the technical scheme, the baffle is arranged in the first receiving cavity and below the foamed material, can protect the foamed material, prevent the foamed material from being depressed or damaged, the baffle is matched with the shape of the foamed material, the baffle is abutted or clamped with the inner wall of the first receiving cavity, good protection effect is achieved, and good heat preservation effect is achieved.
[0019] In the preferred technical scheme of the battery pack box, the first receiving cavity includes a plurality of spaced cavities, a partition is arranged between two adjacent cavities, and the foamed material and the baffle are both a plurality of and are matched with the shape of the cavities.
[0020] In the technical scheme, the partition is arranged between the two adjacent cavities, can increase the structural strength of the box, and can increase the contact area of the foamed material and the partition, so that the foamed material is filled more firmly and will not fall off.
[0021] In the preferred technical scheme of the battery pack box, a first gap is arranged between a plurality of foamed materials, a second gap is arranged between a plurality of baffles, and the partition is arranged in the first gap and the second gap.
[0022] In the technical scheme, the two adjacent foaming materials and the two adjacent baffles are provided with the separation portions, and each foaming material is supported and limited by the baffles in all directions during installation, so that the installation difficulty is reduced, the installation reliability is increased, the manufacturing difficulty of the baffle is reduced, and the process complexity is reduced.
[0023] In a second aspect, the utility model provides a battery pack box body, including first aspect described battery pack.
[0024] In a third aspect, the utility model provides a vehicle, including second aspect described battery pack. BRIEF DESCRIPTION OF DRAWINGS
[0025] Preferred embodiments of the utility model will be described below with reference to the drawings, in which:
[0026] Figure 1 It is the structure schematic view of battery pack box body of the utility model;
[0027] Figure 2 It is the bottom view of battery pack box body of the utility model;
[0028] Figure 3 It is the structure schematic view of die casting of the utility model;
[0029] Figure 4 It is the explosion schematic view of die casting of the utility model;
[0030] Figure 5 It is the explosion schematic view of die casting of the utility model from another angle;
[0031] Figure 6 It is the sectional view of die casting of the utility model.
[0032] Reference signs:
[0033] 1, frame;11, first frame body;110, main body part;111, blocking part;112, mounting hole;113, bottom wall;114, first containing cavity;115, second containing cavity;116, containing cavity;117, separation part;12, second frame body;13, containing space;
[0034] 2, foaming material;21, first gap;
[0035] 3, baffle;31, second gap. DETAILED DESCRIPTION
[0036] Preferred embodiments of the utility model will be described below with reference to the drawings, in which: The skilled in the art should understand that these embodiments are only used for explaining the technical principles of the utility model, and are not intended to limit the protection scope of the utility model.
[0037] It should be noted that in the description of this utility model, the terms "upper," "lower," "left," "right," "front," "rear," "inner," and "outer," which indicate directional or positional relationships, are based on the directional or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0038] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "connection," "setting," and "installation" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, a direct connection, or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0039] like Figures 1 to 6 As shown, in a first aspect, the battery pack housing of this utility model includes a frame. The frame 1 includes a first frame 11 and a second frame 12. The first frame 11 and the second frame 12 are connected and enclose a housing space 13 for housing a battery pack (not shown). The first frame 11 is provided with a mounting hole 112 for connection with the vehicle body. The bottom wall 113 of the first frame 11 is provided with a first receiving cavity 114. The first receiving cavity 114 is arranged around the mounting hole 112. Foaming material 2 is disposed in the first receiving cavity 114, and a baffle 3 is provided below the foaming material 2. In this embodiment, the foaming material 2 is a foaming adhesive or a potting compound. The foaming adhesive or potting compound can ensure the thermal insulation performance of the battery pack housing and is easy to operate.
[0040] The first receiving cavity 114 of this utility model has a complex structure and various shapes. The first receiving cavity 14 is filled with foam material 2, which effectively solves the insulation problem for cavities of different shapes. This not only simplifies the process but also eliminates the need to mold insulation foam of different shapes, further reducing costs. Simultaneously, because the foam material 22 is foamed and filled into the cavity, the gap between the foam material 2 and the inner wall of the cavity is very small, resulting in tight contact and increased insulation effect. A baffle 3 is installed below the foam material 2, which not only reduces the contact area between the foam material 2 and the air, thus reducing the heat dissipation area and achieving a better insulation effect, but also prevents small stones or foreign objects from splashing onto the foam material 2 during vehicle operation, preventing dents or damage, further improving insulation and extending the battery pack's lifespan.
[0041] likeFigures 1 to 2 As shown, in this embodiment, the first frame 11 is a die-cast part, and the second frame 12 is a profile. The first frame 11 and the second frame 12 are connected together by welding. Using different materials and connecting the first frame 11 and the second frame 12 together can improve the overall strength of the casing and reduce material processing costs, thereby lowering the overall cost. Welding the die-cast part and the profile together not only reduces the overall weight and makes the battery pack lighter, but also improves the structural strength and stability of the casing. Furthermore, the connection between the die-cast part and the profile improves assembly efficiency.
[0042] like Figures 3 to 5 As shown, the first frame 1 has a second receiving cavity 115 on its side wall, and foam material 2 is disposed in the second receiving cavity 115. The position of the second receiving cavity 115 on the side wall of the first frame 11 corresponds to the position of the receiving cavity 116. The second receiving cavity 115 is located in the middle of the side wall. The distance between the side wall of the first frame 11 and the components in the receiving cavity 116 is relatively small, which is not conducive to heat preservation. By aligning the position of the second receiving cavity 115 with the receiving cavity 116, the foam material 2 can be filled into the second receiving cavity 115, which achieves a better heat preservation effect.
[0043] like Figure 6 As shown, the thickness of the foamed material 2 is 1 / 5 to 4 / 5 of the depth of the first receiving cavity 114. The foamed material 2 provides insulation. The ratio of the thickness of the foamed material 2 to the depth of the first receiving cavity 114 is 1 / 5 to 4 / 5, meaning that the foamed material 2 does not completely fill the first receiving cavity 114. This saves costs while ensuring the insulation effect. In this embodiment, it is preferable that the thickness of the foamed material 2 is 1 / 2 of the depth of the first receiving cavity 114, meaning that the filling thickness of the foamed material 2 is half the depth of the first receiving cavity 114. This maximizes cost savings while providing good insulation. The thickness of the baffle 3 is between 0.2mm and 0.8mm. The thickness of the baffle 3 is between 0.2mm and 0.8mm, which is not too thick. It not only has good elasticity and flexibility, which can adapt to the complex structure inside the first receiving cavity 114, but also saves costs. In this embodiment, the thickness of the baffle 3 is preferably 0.5mm, which also takes into account the convenience of installation. The baffle 3 has good elasticity and flexibility, which makes it easy to install the baffle 3 into the first receiving cavity 114, while also taking into account the cost.
[0044] Reference Figures 3 to 4The first frame body 11 includes a main body part 110 and a blocking part 111. The blocking part 111 is arranged between the main body part 110 and the battery pack and connected with the battery pack. The blocking part 111 is connected with the battery pack and can press and fix the battery pack, thereby improving the stability of the battery pack. The blocking part 111 can increase the structural strength of the first frame body 11 and the rigidity of the battery pack. The main body part 110 is provided with a receiving cavity 116. The projection of the first receiving cavity 114 in the horizontal direction is arranged on the opposite sides of the receiving cavity 116. The receiving cavity 116 and the projection of the first receiving cavity 114 in the horizontal direction are not overlapped. Other elements are arranged in the receiving cavity 116 and need to be kept warm. The first receiving cavity 114 can keep the elements in the receiving cavity 116 warm from both sides, thereby achieving good heat preservation effect. The battery pack is more and more miniaturized. The projection of the receiving cavity 116 and the first receiving cavity 114 in the horizontal direction is not overlapped. The main body part 110 is used in the limited space. The space of the other elements in the receiving cavity 116 is satisfied. The space of the first receiving cavity 114 is as large as possible, thereby achieving good heat preservation effect. The space is reasonably used and the volume is saved.
[0045] Referring to Figures 3 to 6 The baffle 3 is arranged in the first receiving cavity 114 and matched with the shape of the foaming material 2. The baffle 3 is arranged in the first receiving cavity 114 and below the foaming material 2. The baffle 3 can protect the foaming material 2 and prevent the foaming material 2 from being depressed or damaged. The baffle 3 is matched with the shape of the foaming material 2. The baffle 3 abuts or is clamped with the inner wall of the first receiving cavity 114, thereby achieving good protection effect and good heat preservation effect.
[0046] As shown in Figure 3 and Figure 5 , the first receiving cavity 114 includes a plurality of spaced cavities. The adjacent two cavities are provided with a partition 117. The foaming material 2 and the baffle 3 are both multiple and matched with the shape of the cavities. The partition 117 can increase the structural strength of the box body and increase the contact area of the foaming material 2 and the partition 117, thereby making the foaming material 2 fill more firmly and not fall off. The first gap 21 is arranged between the multiple foaming materials 2. The second gap 31 is arranged between the multiple baffles 3. The partition 117 is arranged in the first gap 21 and the second gap 31. The adjacent two foaming materials 2 and the adjacent two baffles 3 are provided with the partition 117. When installed, each foaming material 2 and baffle 3 are supported and limited around, thereby reducing the installation difficulty, increasing the installation reliability, reducing the manufacturing difficulty of the baffle 3 and reducing the process complexity
[0047] The battery pack of the second aspect of the utility model, comprising the battery pack box of the first aspect. The battery pack of the present technical solution comprises the battery pack box of any one of the utility model, and thus has all the technical effects of the battery pack box of any one of the utility model.
[0048] The vehicle of the third aspect of the utility model, comprising the battery pack of the second aspect. The vehicle of the present technical solution comprises the battery pack of any one of the utility model, and thus has all the technical effects of the battery pack of any one of the utility model.
[0049] It should be noted that the above preferred embodiments are only used to illustrate the principles of the utility model, and are not intended to limit the protection scope of the utility model. Those skilled in the art can adjust the above setting mode without departing from the principles of the utility model, so that the utility model can be applied to more specific application scenarios.
[0050] Of course, the above alternative embodiments can also be used in cross cooperation between the alternative embodiments and between the alternative embodiments and the preferred embodiments, so as to combine new embodiments to be applied to more specific application scenarios.
[0051] So far, the technical solutions of the utility model have been described in combination with the preferred embodiments shown in the drawings, but those skilled in the art can easily understand that the protection scope of the utility model is obviously not limited to these specific embodiments. Those skilled in the art can make equivalent changes or replacements to the related technical features without departing from the principles of the utility model, and the technical solutions after the changes or replacements will all fall within the protection scope of the utility model.
Claims
1. A battery pack case characterized by, The application relates to a battery pack box body. The first frame body is provided with a mounting hole connected with the vehicle body, and the bottom wall of the first frame body is provided with a first accommodating cavity which is arranged around the mounting hole and is configured with foamed material, and the lower part of the foamed material is provided with a baffle. The ratio of the thickness of the foamed material to the depth of the first accommodating cavity is 1 / 5 to 4 / 5, and / or the thickness of the baffle is 0.2mm to 0.8mm.
2. The battery pack enclosure of claim 1, wherein, The ratio of the thickness of the foamed material to the depth of the first accommodating cavity is 1 / 2, and / or the thickness of the baffle is 0.5mm.
3. The battery pack enclosure of claim 2, wherein, The first frame body comprises a main body part and a blocking part which is arranged between the main body part and the battery pack and is connected with the battery pack.
4. The battery pack enclosure of claim 1, wherein, The main body part is provided with an accommodating cavity, the projection of the first accommodating cavity in the horizontal direction is arranged on the opposite sides of the accommodating cavity, and the projection of the first accommodating cavity in the horizontal direction does not overlap with the accommodating cavity.
5. The battery pack enclosure of claim 4, wherein, The baffle is arranged in the first accommodating cavity and is matched with the shape of the foamed material.
6. The battery pack enclosure of claim 1, wherein, The first accommodating cavity comprises a plurality of spaced cavities, a separation part is arranged between two adjacent cavities, and the foamed material and the baffle are both matched with the shape of the cavities.
7. The battery pack enclosure of claim 1, wherein, First gaps are arranged between the plurality of foamed materials, second gaps are arranged between the plurality of baffles, and the separation part is arranged in the first gaps and the second gaps.
8. The battery pack enclosure of claim 7, wherein, The application further relates to a battery pack comprising the battery pack box body.
9. A battery pack, characterized by, The application further relates to a battery pack comprising the battery pack.
10. A vehicle characterized by comprising: