Battery box body cooling assembly and automobile

Abstract

The utility model discloses a battery box cooling assembly and an automobile, and relates to the technical field of automobiles, the battery box cooling assembly comprises a mounting box body used for fixing a battery, a cooling flow path is formed on the mounting box body, the mounting box body comprises a bottom plate, two cross beams arranged on the bottom plate at intervals along the longitudinal direction, and two longitudinal beams connected with the two cross beams, the cooling flow path passes through the two cross beams, the two longitudinal beams and the connecting beam, a water outlet and two water inlets which are communicated with the cooling flow path are formed in the side face of one cross beam in the longitudinal direction, and the two water inlets are formed in the transverse direction in a spaced mode; the water outlet is located between the two water inlets and corresponds to the connecting beam, so that cooling liquid enters the cooling flow path from the two water inlets, passes through the corresponding cross beams, the corresponding longitudinal beams and the connecting beam and then flows out of the water outlet. Therefore, the cooling effect of the battery box body cooling assembly can be ensured while the part cost and the part number are reduced and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobiles, and particularly relates to a battery box cooling assembly and an automobile. Background Art

[0002] At present, in the industry, the lower box assembly of power batteries adopts an aluminum extrusion plus welded frame, a stamping brazed liquid cooling plate, and a hot forming bottom guard plate. The liquid cooling plate is connected to the aluminum extrusion frame through FDS screws in sequence, and the hot forming bottom guard plate is connected to the lower box frame through bolts for assembly.

[0003] However, the existing lower box assembly has high part costs and transportation costs, a large number of parts, many production processes, and low production efficiency. If the frame, liquid cooling plate, and bottom guard plate are integrated into one, the cooling effect of the liquid cooling plate on the battery cannot be ensured. Summary of the Utility Model

[0004] The main purpose of the utility model is to propose a battery box cooling assembly and an automobile, aiming to solve the problems of high part costs and transportation costs, a large number of parts, many production processes, and low production efficiency of the existing lower box assembly. If the frame, liquid cooling plate, and bottom guard plate are integrated into one, the cooling effect of the liquid cooling plate on the battery cannot be ensured.

[0005] To achieve the above purpose, the battery box cooling assembly proposed by the utility model includes an installation box for fixing the battery. A cooling flow path is formed on the installation box. The installation box includes a bottom plate, two cross beams arranged at intervals along the longitudinal direction on the bottom plate, two longitudinal beams connecting the two cross beams, and a connecting beam located between the two longitudinal beams and connecting the two cross beams. The cooling flow path passes through the two cross beams, the two longitudinal beams, and the connecting beam.

[0006] One of the cross beams is provided with an outlet and two inlets communicating with the cooling flow path on the side surface along the longitudinal direction. The two inlets are arranged at intervals along the transverse direction. The outlet is located between the two inlets and corresponds to the connecting beam, so that the coolant enters the cooling flow path from the two inlets, passes through the corresponding cross beam, the corresponding longitudinal beam, and the connecting beam, and then flows out from the outlet.

[0007] In an embodiment, the two cross beams include a first cross beam, and the inlet and the outlet are arranged on the first cross beam.

[0008] On the first cross beam, a partition is arranged between the outlet and each inlet to partition the cooling flow path between the outlet and the corresponding inlet.

[0009] In one embodiment, the two cross beams include a first cross beam and a second cross beam. The water inlet and the water outlet are provided on the first cross beam. The second cross beam includes two transverse segments independently arranged in the transverse direction.

[0010] The connecting beam includes two connecting segments independently arranged in the transverse direction or in the vertical direction.

[0011] The cooling flow path includes two annular flow paths. The two annular flow paths respectively correspond to the two water inlets. The two annular flow paths respectively pass through the corresponding transverse segments and the connecting segments to communicate with the water outlet.

[0012] In one embodiment, the installation box body further includes a plurality of support beams. The plurality of support beams are arranged at intervals in the longitudinal direction. The middle of each support beam is connected to the connecting beam, and the two ends are respectively connected to the two longitudinal beams.

[0013] In one embodiment, the plurality of support beams, the two cross beams, the two longitudinal beams and the connecting beam together enclose a plurality of installation spaces arranged at intervals. Each installation space is used to fix the battery.

[0014] In one embodiment, each support beam has a chamber. The chamber includes two chamber segments arranged at intervals in the transverse direction. The two chamber segments are respectively arranged on both sides of the connecting beam in the transverse direction.

[0015] In one embodiment, both ends of each chamber segment in the transverse direction communicate with the cooling flow path.

[0016] In one embodiment, each support beam further includes a plurality of support pieces. The plurality of support pieces are respectively arranged in the two chamber segments and are distributed at intervals in the transverse direction.

[0017] In one embodiment, the battery box body cooling assembly further includes a plurality of mounting parts. The plurality of mounting parts are arranged at intervals on the peripheral side surface of the installation box body. The mounting parts are used to connect the vehicle body.

[0018] The present utility model also provides an automobile, including the above-mentioned battery box body cooling assembly.

[0019] In the technical solution of the present utility model, the coolant enters the corresponding cross beam from the two water inlets at the same time. Then, the coolant entering from the two water inlets flows away from each other to flow into the corresponding longitudinal beams respectively, and then flows uniformly into the other cross beam, and converges and blends in the cross beam to jointly flow into the connecting beam and then flow out from the water outlet. With such a setting, by integrating the cooling system on the battery box body, multiple beam structures of the installation box body are used as cooling structures to cool the battery. While reducing the part cost and the number of parts and improving the production efficiency, the battery box body cooling assembly can also perform multi-side cooling, increasing the contact area between the cooling surface of the battery box body cooling assembly and the battery, ensuring the effect of the cooling work. At the same time, the setting of the two water inlets can also ensure the uniformity of the cooling of the batteries on both sides of the connecting beam in the transverse direction of the battery box body cooling assembly, thereby ensuring the temperature uniformity of the batteries on both sides. Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following-described drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0021] Figure 1 It is a schematic structural diagram of an embodiment of a battery box body cooling assembly (with a battery fixed) provided by the present utility model;

[0022] Figure 2 is Figure 1 a schematic structural diagram of the battery box body cooling assembly (without a battery fixed) in;

[0023] Figure 3 is Figure 1 a partial enlarged view of the water inlet and the water outlet in;

[0024] Figure 4 is Figure 1 a schematic cross-sectional view of the support beam in.

[0025] Explanation of the reference numerals in the drawings:

[0026] 100, battery box body cooling assembly; 1, installation box body; 11, bottom plate; 12, cross beam; 121, first cross beam; 122, second cross beam; 13, longitudinal beam; 14, connecting beam; 15, support beam; 161, chamber; 162, support piece; 2, water outlet; 3, water inlet; 4, mounting part.

[0027] The realization, functional characteristics and advantages of the purpose of the present utility model will be further described with reference to the embodiments and the drawings. Detailed implementation manners

[0028] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0029] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present utility model, the directional indications are only used to explain the relative position relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0030] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present utility model, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution where A and B are satisfied simultaneously. In addition, the technical solutions between the embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0031] The present utility model provides a battery box cooling assembly, aiming to solve the problems that the existing lower box assembly has high part costs and transportation costs, a large number of parts, many production processes, low production efficiency, and if the frame, liquid cooling plate, and bottom guard plate are integrated into one, the cooling effect of the liquid cooling plate on the battery cannot be ensured.

[0032] Please refer to Figures 1-4, in an embodiment of the present utility model, the battery box cooling assembly 100 includes a mounting box 1 for fixing the battery. A cooling flow path is formed on the mounting box 1. The mounting box 1 includes a bottom plate 11, two cross beams 12 arranged longitudinally at intervals on the bottom plate 11, two longitudinal beams 13 connecting the two cross beams 12, and a connecting beam 14 located between the two longitudinal beams 13 and connecting the two cross beams 12. The cooling flow path passes through the two cross beams 12, the two longitudinal beams 13, and the connecting beam 14. One of the cross beams 12 is provided with an outlet 2 and two inlets 3 communicating with the cooling flow path on the side surface along the longitudinal direction. The two inlets 3 are arranged at intervals in the transverse direction. The outlet 2 is located between the two inlets 3 and corresponds to the connecting beam 14, so that the coolant enters the cooling flow path from the two inlets 3, passes through the corresponding cross beam 12, the corresponding longitudinal beam 13, and the connecting beam 14, and then flows out from the outlet 2.

[0033] In the technical solution of the present utility model, the coolant enters the corresponding cross beam 12 from the two inlets 3 at the same time. Then, the coolant entering from the two inlets 3 flows away from each other to respectively flow into the corresponding longitudinal beam 13, and then uniformly flows into the other cross beam 12, and converges and blends in the cross beam 12 to jointly flow into the connecting beam 14 and then flow out from the outlet 2. With such a setting, by integrating the cooling system on the battery box, multiple beam structures of the mounting box 1 are used as cooling structures to cool the battery. While reducing the part cost and the number of parts and improving the production efficiency, the battery box cooling assembly 100 can also perform multi-side cooling, increasing the contact area between the cooling surface of the battery box cooling assembly 100 and the battery, ensuring the effect of the cooling work. At the same time, the setting of the two inlets 3 can also ensure the uniformity of the cooling of the battery on both sides in the transverse direction of the connecting beam 14 of the battery box cooling assembly 100, thereby ensuring the temperature uniformity of the batteries on both sides.

[0034] It can be understood that in other embodiments of the present utility model, only one water inlet 3 may be provided, and two water outlets 2 may be provided. The two water outlets 2 are arranged at intervals in the horizontal direction, and the water inlet 3 is arranged between the two water outlets 2 and corresponding to the connecting beam 14. At this time, in this embodiment, the coolant flows into the cross beam 12 from the water inlet 3, and then directly flows into the connecting beam 14. After that, it is split at the connection of the connecting beam 14 and the other cross beam 12 to flow in the horizontal direction and in opposite directions, so as to flow into the corresponding longitudinal beams 13 respectively, and finally flow from the corresponding longitudinal beams 13 to the cross beam 12 and flow out from the corresponding water outlets 2. With such a setting, it is also possible to reduce the part cost and the number of parts of the battery box cooling assembly 100, improve the production efficiency of the battery box cooling assembly 100, while enabling the battery box cooling assembly 100 to perform multi-sided cooling, increasing the contact area between the battery box cooling assembly and the battery, ensuring the cooling effect. And because the coolant is split at the connection of the connecting beam 14 and the other cross beam 12, in this way, it is also possible to ensure the uniformity of the cooling of the batteries on both sides of the connecting beam 14 in the horizontal direction by the battery box cooling assembly 100 and ensure the temperature uniformity of the batteries on both sides.

[0035] It should be noted that when two water inlets 3 are provided and only one water outlet 2 is provided, to ensure that the coolant flowing into the cooling flow path from the two water inlets 3 converges in the other cross beam 12, the convergence point of the coolant flowing in opposite directions corresponds to the connection of the connecting beam 14 and this cross beam 12, so as to ensure that the coolant flowing in opposite directions can smoothly flow into the connecting beam 14 after convergence and prevent the coolant flowing in opposite directions from forming a stagnant area in this cross beam 12, affecting the cooling effect of the battery box cooling assembly 100. In an embodiment of the present utility model, the connecting beam 14 is arranged in the middle of the two cross beams 12 in the horizontal direction, and the water pressures at the two water inlets 3 are equal.

[0036] Similarly, to avoid the appearance of a stagnant area on any of the cross beams 12 or any of the longitudinal beams 13, in an embodiment of the present utility model, both ends of each cross beam 12 are respectively connected to one end of the two longitudinal beams 13, so that the two cross beams 12 and the two longitudinal beams 13 are connected end to end, to prevent some of the cross beams 12 or the longitudinal beams 13 from not participating in the cooling of the battery, that is, the cooling flow path does not pass through some of the cross beams 12 or the longitudinal beams 13, affecting the cooling effect of the battery box cooling assembly 100.

[0037] Of course, it is understandable that the length, width or specific extension direction of each of the cross beams 12 and each of the longitudinal beams 13 can be specifically adjusted according to different car models, and the present invention does not impose any limitation on this.

[0038] At the same time, it should be noted that the battery box cooling assembly 100 proposed in the present invention integrates the cooling system into the cross beam 12, the longitudinal beam 13 and the connecting beam 14, thereby eliminating the space required for the installation of the cooling system, and can greatly reduce the vertical dimensions of the battery box cooling assembly 100, thereby increasing the ground clearance of the entire vehicle, so as to further ensure the safety of the battery and reduce the probability of collision between the battery and foreign objects on the ground.

[0039] It should also be noted that in order to ensure the cooling effect of the battery box cooling assembly 100 and prevent external heat from consuming the cooling capacity of the battery box cooling assembly 100, in one embodiment of the utility model, the surrounding side surfaces and bottom surfaces of the mounting box 1 are also provided with an insulation layer, and the insulation layer is used to isolate the heat exchange between the battery box and the outside world, thereby ensuring the low-temperature performance of the battery and improving its low-temperature endurance.

[0040] The present invention does not limit the specific material of the insulation layer. For example, in a specific embodiment of the present invention, the insulation layer is melamine insulation foam. In other embodiments of the present invention, the insulation layer can also be set to other materials, which can be selected according to needs during actual setting.

[0041] In addition, the present invention does not limit the specific flow form of the cooling flow path. For example, in one embodiment of the present invention, after the coolant enters the cooling flow path from the two water inlets 3, it moves in the direction away from each other and flows into the corresponding longitudinal beam 13, and then flows into the other cross beam 12. The coolants flowing in opposite directions converge with each other in the other cross beam 12, and flow into the connecting beam 14 together, and finally flow out from the water outlet 2. In this way, the coolant in the cooling flow path cools the battery separately in the two cross beams 12 and the two longitudinal beams 13, and converges in the connecting beam 14 to cool the battery together.

[0042] In another embodiment of the present utility model, the two cross beams 12 include a first cross beam 121 and a second cross beam 122. The water inlet 3 and the water outlet 2 are provided on the first cross beam 121. The second cross beam 122 includes two transverse segments independently arranged in the transverse direction. The connecting beam 14 includes two connecting segments independently arranged in the transverse direction or in the vertical direction. The cooling flow path includes two annular flow paths. The two annular flow paths respectively correspond to the two water inlets 3. The two annular flow paths respectively pass through the corresponding transverse segments and the connecting segments to communicate with the water outlet 2. With such a setting, after the coolant enters the corresponding annular flow path from the two water inlets 3, it moves in a direction away from each other and flows into the corresponding longitudinal beam 13. Then, it flows into the corresponding transverse segment. At this time, the two coolant flows with opposite directions do not converge in the second cross beam 122, but flow into the corresponding connecting segment again, and finally flow out together from the water outlet 2. In this embodiment, the cooling flow path is provided with two independently arranged annular flow paths, and the coolant in the two annular flow paths always performs separate cooling on the battery and does not converge.

[0043] It can be understood that based on the above embodiment, when only one water inlet 3 is provided, two water outlets 2 are provided, and the two water outlets 2 are arranged at intervals in the transverse direction, the water inlet 3 is arranged between the two water outlets 2 and corresponds to the connecting beam 14. Thus, after the coolant flows into the cross beam 12 from the water inlet 3, it directly diverges at the connection between the cross beam 12 and the connecting beam 14 to flow into the two connecting segments respectively, and then flows into the corresponding transverse segments, and flows into the corresponding longitudinal beams 13 from the corresponding transverse segments respectively. Finally, it flows from the corresponding longitudinal beam 13 to the cross beam 12 and flows out from the corresponding water outlet 2. With such a setting, it is also possible to make the coolant flow in the two annular flow paths, so that the coolant in the two annular flow paths always performs separate cooling on the battery and does not converge.

[0044] In summary, the present utility model does not limit the specific flow mode of the coolant in the cooling flow path of the battery box cooling assembly 100. During actual setting, it can be selected according to requirements, and the present utility model does not limit this.

[0045] Further, to prevent the coolant from flowing directly towards the outlet 2 after flowing into the cooling flow path from the water inlet 3, which may cause the coolant not to flow through the two longitudinal beams 13, the other cross beam 12, and the connecting beam 14, thereby affecting the cooling effect of the battery box cooling assembly 100 on the battery, in an embodiment of the present invention, a partition member is provided between the outlet 2 and each water inlet 3 on the first cross beam 121. The partition member is used to block the cooling flow path between the outlet 2 and the corresponding water inlet 3. With this arrangement, when the coolant flows into the cooling flow path from the two water inlets 3, the two partition members can block the cooling flow path between the two water inlets 3 and the outlet 2, thereby preventing the coolant from flowing directly from the water inlet 3 to the outlet 2 and avoiding the battery box cooling assembly 100 being unable to cool the battery properly.

[0046] Similarly, when only one water inlet 3 is provided, two outlets 2 are provided, and the two outlets 2 are arranged at intervals in the transverse direction, the water inlet 3 is arranged between the two outlets 2 and corresponds to the connecting beam 14, to avoid the coolant flowing directly from the water inlet 3 to the two outlets 2, in an embodiment of the present invention, it is necessary to provide the partition member between the outlets 2 and the two water inlets 3. With this arrangement, when the coolant flows into the cooling flow path from the water inlet 3, the two partition members can block the cooling flow path between the water inlet 3 and the two outlets 2, thereby preventing the coolant from flowing directly from the water inlet 3 to any one of the outlets 2 and ensuring that the battery box cooling assembly 100 can cool the battery properly.

[0047] Even further, after ensuring the cooling effect of the battery box cooling assembly 100, it is also necessary to ensure the structural strength of the installation box 1 to ensure the protection performance of the battery box cooling assembly 100 for the battery. Therefore, in an embodiment of the present invention, the installation box 1 further includes a plurality of support beams 15. The plurality of support beams 15 are arranged at intervals longitudinally. The middle of each support beam 15 is connected to the connecting beam 14, and the two ends are respectively connected to the two longitudinal beams 13. With this arrangement, through the provision of the plurality of support beams 15, more support points can be provided for the two longitudinal beams 13. At the same time, there are also connection points between each support beam 15 and the connecting beam 14 to improve the anti-deformation ability of the installation box 1 in the transverse and longitudinal directions, so that the installation box 1 can stably fix the battery and further improve the structural strength of the installation box 1.

[0048] It can be understood that the present utility model does not limit the specific number of the support beams 15. In an embodiment of the present utility model, two support beams 15 are provided. The two support beams 15 are arranged at intervals longitudinally, and both ends of the support are respectively connected to the two longitudinal beams 13, and the middle part is connected to the connecting beam 14. With such an arrangement, the deformation of the installation box body 1 is jointly restricted by the two support beams 15, and the structural strength of the installation box body 1 is improved.

[0049] In another embodiment of the present utility model, only one support beam 15 is provided. The support beam 15 extends transversely. Both ends of the support beam 15 are respectively connected to the two longitudinal beams 13, and the middle part is connected to the connecting beam 14. With such an arrangement, the deformation of the installation box body 1 can also be restricted by the support beam 15, and the structural strength of the installation box body 1 is improved.

[0050] It should be noted that when multiple support beams 15 are provided, the fixing method of the battery by the installation box body 1 also needs to be adjusted accordingly. Specifically, in an embodiment of the present utility model, the multiple support beams 15, the two cross beams 12, the two longitudinal beams 13, and the connecting beam 14 jointly enclose a plurality of installation spaces arranged at intervals, and each installation space is used for fixing the battery. With such an arrangement, the multiple support beams 15 can fix the battery together with the cross beam 12, the longitudinal beam 13, and the connecting beam 14, and each beam structure abuts against one side surface of the battery, so as to ensure the fixing effect of the installation box body 1 on the battery.

[0051] In addition, since the setting of the support beam 15 will cause an increase in the weight of the battery box body cooling assembly 100, and to avoid internal defects in the support beam 15 during the forming process, in an embodiment of the present utility model, each support beam 15 has a chamber 161. It can be understood that the setting of the chamber 161 can reduce the wall thickness of the support beam 15, prevent internal defects in the support beam 15 during the forming process, make the support beam 15 easier to be cast, and moreover, the thinner wall thickness makes the support beam 15 have better heat conduction performance, which can further meet the heat dissipation requirements of the battery. At the same time, the setting of the chamber 161 can also reduce the weight of the support beam 15, so as to further reduce the part cost and the number of parts of the battery box body cooling assembly 100 and improve the production efficiency.

[0052] In addition, to ensure that the chamber 161 does not affect the normal flow of the coolant in the cooling flow path, in other embodiments of the present invention, the chamber 161 includes two chamber segments spaced apart laterally, and the two chamber segments are respectively disposed on both sides of the connecting beam 14 in the lateral direction. With this arrangement, the cooling flow path and the two chamber segments can be isolated, preventing the coolant in the cooling flow path from flowing into the chamber segments, thereby avoiding the formation of a stagnant area in the chamber segments and affecting the heat dissipation effect of the battery box cooling assembly 100 on the battery.

[0053] Further, to ensure the structural strength of the support beam 15 after the chamber 161 is provided, in another embodiment of the present invention, each support beam 15 further includes a plurality of support pieces 162, and the plurality of support pieces 162 are respectively disposed in the two chamber segments and are spaced apart along the lateral direction. With this arrangement, the plurality of support pieces 162 can jointly provide support for the support beam 15, enabling the support beam 15 to ensure its own structural strength while reducing weight, thereby ensuring the structural strength and anti-deformation ability of the installation box 1.

[0054] It can be understood that, in yet another embodiment of the present invention, the plurality of support pieces 162 can also be spaced apart vertically. With this arrangement, the improvement degree of the structural strength of the support beam 15 by the plurality of support pieces 162 is further increased, thereby ensuring the structural strength and anti-deformation ability of the installation box 1 again.

[0055] When the battery box cooling assembly 100 is provided with the support beam 15, the side surface of the battery in contact with the support beam 15 is not cooled and dissipated. To improve the heat dissipation capacity of the battery box cooling assembly 100, in an embodiment of the present invention, both ends of each of the cavity segments in the transverse direction are connected to the cooling flow path. In this way, the coolant simultaneously enters the corresponding cross beam 12 from the two inlets 3, and then, the coolant entering from the two inlets 3 flows away from each other to respectively flow into the corresponding longitudinal beam 13. When the coolant flows to the connection between the corresponding cavity segment and the corresponding longitudinal beam 13, part of the coolant will flow from the longitudinal beam 13 into the cavity segment, and then flow from the cavity segment into the connection beam 14. The remaining coolant will uniformly flow into the other cross beam 12, and converge and blend in the cross beam 12 to jointly flow into the connection beam 14 and converge again with the above-mentioned part of the coolant, and finally uniformly flow out from the outlet 2. The cooling flow path can flow through the support beam 15, and each beam structure of the installation box 1 can be used as a cooling structure to cool the battery. In this way, the cooling surface of the battery box cooling assembly 100 and the contact area with the battery can be further increased, so as to further ensure the multi-side cooling function of the battery box cooling assembly 100, improve the effect of the cooling work again, and ensure the uniform temperature of each battery in the installation box 1.

[0056] In another embodiment of the present invention, when the second cross beam 122 includes two transverse segments independently arranged in the transverse direction, and the connection beam 14 includes two connection segments independently arranged in the transverse direction or up and down, one end of each cavity segment is connected to the corresponding connection segment. In this way, the coolant simultaneously enters the corresponding cross beam 12 from the two inlets 3, and then, the coolant entering from the two inlets 3 flows away from each other to respectively flow into the corresponding longitudinal beam 13. When the coolant flows to the connection between the corresponding cavity segment and the corresponding longitudinal beam 13, part of the coolant will flow from the longitudinal beam 13 into the cavity segment, and then flow from the corresponding cavity segment into the corresponding connection segment. The remaining coolant will flow from the corresponding longitudinal beam 13 into the corresponding transverse segment. At this time, the two coolant flows in opposite directions will not converge in the second cross beam 122, but will flow into the corresponding connection segment again, converge with the above-mentioned part of the coolant, and then flow out from the outlet 2 together.

[0057] Further, in another embodiment of the present utility model, when only one water inlet 3 is provided, two water outlets 2 are provided, and the two water outlets 2 are arranged at intervals in the horizontal direction, the water inlet 3 is arranged between the two water outlets 2 and corresponds to the connecting beam 14. In this way, the coolant flows into the cross beam 12 from the water inlet 3, and then directly flows into the connecting beam 14. When the coolant flows to the connection between the connecting beam 14 and the two cavity segments, part of the coolant will flow into the two cavity segments respectively, and then flow into the corresponding longitudinal beams 13 from the corresponding cavity segments. The remaining coolant will be split at the connection between the connecting beam 14 and the second constant connection, so as to flow in the horizontal direction and in opposite directions, and then flow into the corresponding longitudinal beams 13 respectively, converge with the above-mentioned part of the coolant, and finally flow out from the corresponding water outlets 2 respectively.

[0058] In addition, the present utility model also needs to ensure the installation stability of the battery box cooling assembly 100. In the present utility model, the battery box cooling assembly 100 further includes a plurality of mounting parts 4, and the plurality of mounting parts 4 are arranged at intervals on the peripheral side surface of the mounting box 1, and the mounting parts 4 are used to connect to the vehicle body. With such a setting, the battery box cooling assembly 100 is fastened to the vehicle body through the plurality of mounting parts 4 to ensure the installation stability of the battery box cooling assembly 100.

[0059] It can be understood that the present utility model does not limit the specific structural form of the mounting part 4. In an embodiment of the present utility model, the mounting part 4 includes a mounting plate and a bolt-nut structure. A plurality of threaded holes are penetrated through the mounting plate at intervals. The bolts of each bolt-nut structure sequentially pass through the mating holes on the vehicle body and the threaded holes, and the nuts of the bolt-nut structure are fastened to the parts of the bolts of the bolt-nut structure extending out of the threaded holes to fix the battery box cooling assembly 100 to the vehicle body.

[0060] It should be noted that, in order to avoid internal defects in the mounting plate during the forming process, in a further embodiment of the present utility model, on the premise of ensuring the structural strength of the mounting plate, the thickness of the mounting plate in the up and down direction should be minimized to prevent defects in the mounting plate during the forming process.

[0061] In another embodiment of the present utility model, the battery box cooling assembly 100 can also be connected to the vehicle body by welding. In this way, the mounting part 4 is the welding point.

[0062] Of course, in other embodiments of the present utility model, the mounting part 4 can also be set to other structural forms, and the present utility model does not limit this.

[0063] The present utility model also provides an automobile, which includes a battery box cooling assembly 100. The specific structure of the battery box cooling assembly 100 refers to the above embodiments. Since this automobile adopts all the technical solutions of the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be elaborated one by one here.

[0064] The above is only an exemplary embodiment of the present utility model, and does not limit the patent scope of the present utility model accordingly. Any equivalent structural transformation made under the technical concept of the present utility model by using the content of the specification and drawings of the present utility model, or any direct / indirect application in other related technical fields is included in the patent protection scope of the present utility model.

Claims

1. A battery box cooling assembly, characterized in that: A mounting box for fixing a battery is provided, wherein a cooling flow path is formed on the mounting box, wherein the mounting box comprises a bottom plate, two cross beams arranged on the bottom plate at intervals in the longitudinal direction, two longitudinal beams connecting the two cross beams, and a connecting beam located between the two longitudinal beams and connecting the two cross beams, wherein the cooling flow path passes through the two cross beams, the two longitudinal beams and the connecting beam; One of the cross beams is provided with a water outlet and two water inlets connected to the cooling flow path on the side along the longitudinal direction. The two water inlets are arranged at intervals in the transverse direction, and the water outlet is located between the two water inlets and is arranged corresponding to the connecting beam, so that the coolant enters the cooling flow path from the two water inlets, passes through the corresponding cross beam, the corresponding longitudinal beam and the connecting beam, and then flows out from the water outlet.

2. The battery box cooling assembly according to claim 1, characterized in that: The two cross beams include a first cross beam, on which the water inlet and the water outlet are arranged; On the first crossbeam, a partition is provided between the water outlet and each of the water inlets, and the partition is used to separate the cooling flow path between the water outlet and the corresponding water inlet.

3. The battery box cooling assembly according to claim 1, characterized in that: The two cross beams include a first cross beam and a second cross beam, the first cross beam is provided with the water inlet and the water outlet, and the second cross beam includes two cross sections independently arranged in the transverse direction; The connecting beam comprises two connecting sections which are independently arranged in the transverse direction or in the vertical direction; The cooling flow path includes two annular flow paths, the two annular flow paths correspond to the two water inlets respectively, and the two annular flow paths pass through the corresponding transverse sections and the connecting sections respectively to be connected to the water outlets.

4. The battery box cooling assembly according to claim 1, characterized in that: The installation box also includes a plurality of support beams, which are arranged at intervals along the longitudinal direction. The middle part of each support beam is connected to the connecting beam, and the two ends are respectively connected to the two longitudinal beams.

5. The battery box cooling assembly according to claim 4, characterized in that: The plurality of support beams, the two cross beams, the two longitudinal beams and the connecting beam together enclose a plurality of installation spaces that are spaced apart from each other, and each installation space is used to fix a battery.

6. The battery box cooling assembly according to claim 4, characterized in that: Each of the support beams has a cavity, and the cavity includes two cavity sections that are spaced apart in the transverse direction, and the two cavity sections are respectively arranged on both sides of the connecting beam in the transverse direction.

7. The battery box cooling assembly according to claim 6, characterized in that: Both ends of each cavity segment in the transverse direction are connected to the cooling flow path.

8. The battery box cooling assembly according to claim 6, characterized in that: Each of the support beams further comprises a plurality of support plates, and the plurality of support plates are arranged in the two cavity sections and are distributed at intervals in the transverse direction.

9. The battery box cooling assembly according to claim 1, characterized in that: The battery box cooling assembly also includes a plurality of mounting parts, which are arranged at intervals on the peripheral side of the installation box, and the mounting parts are used to connect to the automobile body.

10. An automobile, characterized in that: Comprising a battery box cooling assembly as described in any one of claims 1 to 9.

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