Battery box cover for new energy automobile and battery box

Abstract

The utility model provides a battery box cover and a battery box for a new energy automobile, the battery box cover comprises a cover body, the front end of the cover body is connected with at least two locking buckles, an annular cooling pipe is arranged close to the outer side in the cover body, the cooling pipe is connected with a circulating water inlet pipe and a circulating water outlet pipe, and the circulating water inlet pipe and the circulating water outlet pipe are connected to the side part of the cover body. The circulating water inlet pipe and the circulating water outlet pipe are connected with control valves respectively, the cover body is made of a composite layered structure, and the composite layered structure comprises a cooling pipe, an aluminum oxide fiber layer, a resin layer, a first adhesive film layer, a foam layer, a second adhesive film layer and a carbon fiber layer which are sequentially connected from inside to outside. According to the battery box cover, the adhesive film layers are respectively arranged on the two sides of the foam layer, so that the foam layer in the battery box cover can be subjected to hole sealing, and the situation of adhesive absorption is prevented. And by arranging the cooling pipe, the battery box cover can be cooled.

Description

Technical Field

[0001] The utility model relates to the technical field of battery boxes, in particular to a battery box cover and a battery box for a new energy vehicle. Background Art

[0002] Lightweight is an important direction for the current development of automobiles and an important means for energy conservation of automobiles. As the main driving energy source of power devices such as new energy vehicles, the battery box plays an irreplaceable role. In the lid of a traditional battery box, PVC / PET foam is filled to play a role in shock absorption and heat insulation. The traditional PVC / PET foam sandwich has a relatively high porosity and cannot achieve closed pores. During the resin infusion process, it is easy to absorb glue, and the amount of glue absorption is completely uncontrollable, and the product shape cannot be guaranteed to be normally formed. Moreover, when the battery works for a long time, it is easy to generate overheating, or when the battery is in a hot environment, it is easy to cause failures. Some existing battery boxes are provided with air-cooling or water-cooling devices to cool the battery, but the lid is usually located at the top of the battery box and receives direct sunlight first, and the temperature will rise first. The electrodes are also on the lid. If the temperature is too high, it is also easy to cause danger. The prior art often ignores the cooling of the battery box cover. Summary of the Invention

[0003] The utility model aims to solve at least one of the technical problems in the related art to some extent. For this reason, an embodiment of the utility model provides a battery box cover and a battery box for a new energy vehicle, which can seal the pores of the foam layer in the battery box cover to prevent glue absorption, and can cool the battery box cover.

[0004] An embodiment of one aspect of the utility model provides a battery box cover for a new energy vehicle, including a cover body. The rear end of the cover body is adapted to be connected to the box body of the battery box through a rotating shaft. At least two locking clamps are connected to the front end of the cover body, and the locking clamps are cooperatively connected with the box body to lock. A ring-shaped cooling pipe is arranged on the outer side of the cover body. The cooling pipe is connected to a circulating water inlet pipe and a circulating water outlet pipe. The circulating water inlet pipe and the circulating water outlet pipe are connected to the side of the cover body. Control valves are respectively connected to the circulating water inlet pipe and the circulating water outlet pipe. The material of the cover body is a composite layered structure, and the composite layered structure includes a cooling pipe, an alumina fiber layer, a resin layer, a first adhesive film layer, a foam layer, a second adhesive film layer and a carbon fiber layer connected in sequence from the inside to the outside.

[0005] In some embodiments, a positive current collector and a negative current collector are connected to the lower end of the cover body, and a positive electrode column and a negative electrode column are arranged on the upper end of the cover body. The positive electrode column is electrically connected to the positive current collector, and the negative electrode column is electrically connected to the negative current collector.

[0006] In some embodiments, both the positive current collector and the negative current collector are strip-shaped and arranged in parallel.

[0007] In some embodiments, the positive electrode post and the negative electrode post are disposed between the positive current collector and the negative current collector.

[0008] In some embodiments, a handle is connected to the upper end of the cover body.

[0009] In some embodiments, the handle is disposed between the positive electrode post and the negative electrode post.

[0010] In some embodiments, the control valve is a solenoid valve.

[0011] In some embodiments, a sealing strip is provided at the edge of the lower end of the cover body, and the cooling pipe is located inside the sealing strip.

[0012] In some embodiments, the materials of the first adhesive film layer and the second adhesive film layer are TPU adhesive film or epoxy adhesive film.

[0013] Another embodiment of the present invention provides a battery box, including a box body and the above-mentioned battery box cover. The rear end of the cover body is connected to the box body through a rotating shaft, and the front end of the cover body is connected to the box body through a locking buckle and can be opened and closed. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The above and / or additional aspects and advantages of the present invention will become apparent and easy to understand from the following description of the embodiments in conjunction with the drawings.

[0015] Wherein:

[0016] Figure 1 is a schematic structural diagram of the battery box cover for a new energy vehicle in an embodiment of the present invention;

[0017] Figure 2 is Figure 1 the bottom view of

[0018] Figure 3 is Figure 1 the top view of

[0019] Figure 4 is a schematic structural diagram of the composite layer structure;

[0020] REFERENCE SIGNS:

[0021] 1 - locking buckle; 2 - positive current collector; 3 - negative electrode post; 4 - cooling pipe; 5 - circulating inlet pipe; 6 - circulating outlet pipe; 7 - negative current collector; 8 - positive electrode post; 9 - cover body; 10 - handle; 91 - alumina fiber layer; 92 - resin layer; 93 - first adhesive film layer; 94 - foam layer; 95 - second adhesive film layer; 96 - carbon fiber layer. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present utility model, and should not be construed as a limitation of the present utility model.

[0023] The battery box cover and battery box for new energy vehicles according to embodiments of the present utility model will be described below with reference to the accompanying drawings.

[0024] As Figures 1-4 shown, an embodiment of the present utility model on one hand provides a battery box cover for a new energy vehicle, including a cover body 9. The rear end of the cover body 9 is adapted to be connected to the box body of the battery box through a rotating shaft. At least two locking fasteners 1 are connected to the front end of the cover body 9. The locking fasteners 1 are cooperatively connected and locked with the box body. A ring-shaped cooling pipe 4 is provided on the outer side inside the cover body 9. The cooling pipe 4 is connected to a circulating water inlet pipe 5 and a circulating water outlet pipe 6. The circulating water inlet pipe 5 and the circulating water outlet pipe 6 are connected to the side of the cover body 9. Control valves are respectively connected to the circulating water inlet pipe 5 and the circulating water outlet pipe 6. The material of the cover body 9 is a composite layered structure, and the composite layered structure includes a cooling pipe 4, an alumina fiber layer 91, a resin layer 92, a first adhesive film layer 93, a foam layer 94, a second adhesive film layer 95, and a carbon fiber layer 96, which are sequentially connected from the inside to the outside.

[0025] By providing adhesive film layers on both sides of the foam layer 94, the present utility model can seal the holes in the foam layer 94 inside the battery box cover to prevent the occurrence of glue absorption. By providing the cooling pipe 4, the battery box cover can be cooled down. By arranging the cooling pipe 4 on the outer side inside the cover body 9 and setting it as a ring-shaped structure to avoid the components related to battery power connection, the normal operation of the battery can be prevented from being affected.

[0026] It should be noted that both the circulating water inlet pipe 5 and the circulating water outlet pipe 6 are flexible hoses, and there is sufficient margin in length. The flexible hoses will not affect the opening and closing of the cover body 9.

[0027] Furthermore, a water pump is provided on the circulating water inlet pipe 5 or the circulating water outlet pipe 6 to promote the cooling water to enter the cooling pipe 4.

[0028] Furthermore, the material of the foam layer 94 can be PVC or PET.

[0029] In some embodiments, a positive current collector 2 and a negative current collector 7 are connected to the lower end of the cover body 9. A positive terminal 8 and a negative terminal 3 are provided at the upper end of the cover body 9. The positive terminal 8 is electrically connected to the positive current collector 2, and the negative terminal 3 is electrically connected to the negative current collector 7. When multiple batteries are placed in the battery box, all the batteries can be connected in series through the current collectors.

[0030] In some embodiments, both the positive current collector 2 and the negative current collector 7 are strip-shaped and arranged in parallel.

[0031] In some embodiments, the positive electrode post 8 and the negative electrode post 3 are disposed between the positive current collector 2 and the negative current collector 7.

[0032] In some embodiments, a handle 10 is connected to the upper end of the cover body 9, which facilitates opening the cover body 9.

[0033] In some embodiments, the handle 10 is disposed between the positive electrode post 8 and the negative electrode post 3.

[0034] In some embodiments, the control valve is a solenoid valve, which can remotely control the on / off and flow rate of the circulating water.

[0035] Furthermore, a temperature sensor is provided on the cooling pipe 4. The temperature sensor is electrically connected to the center console, and can display the real-time temperature of the cooling pipe 4 on the center console, and can control the on / off and flow rate of the solenoid valve according to the real-time temperature.

[0036] In some embodiments, a sealing strip is provided at the edge of the lower end of the cover body 9, and the cooling pipe 4 is located inside the sealing strip. By providing the sealing strip, the sealing performance between the cover body and the box body of the battery box can be ensured.

[0037] In some embodiments, the materials of the first adhesive film layer 93 and the second adhesive film layer 95 are TPU adhesive film or epoxy adhesive film.

[0038] Another embodiment of the present utility model provides a battery box, which includes a box body and the above-mentioned battery box cover. The rear end of the cover body 9 is connected to the box body through a rotating shaft, and the front end of the cover body 9 is connected to the box body through a locking buckle 1 and can be opened and closed.

[0039] Furthermore, the box body can also be provided with a circulating water device, which will not be elaborated here.

[0040] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0041] In addition, the terms "first" and "second" are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0042] In the present utility model, unless otherwise clearly specified and defined, terms such as "installed", "connected", "joined", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or communicable with each other; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0043] In the present utility model, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0044] In the present utility model, terms such as "an embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0045] Although the embodiments of the present utility model have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present utility model. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present utility model.

Claims

1. A battery box cover for new energy vehicles, characterized in that: It includes a cover body, the rear end of the cover body is suitable for being connected to the box body of the battery box through a rotating shaft, the front end of the cover body is connected with at least two locking buckles, the locking buckles are matched with the box body for connection and locking, an annular cooling pipe is provided on the outer side of the cover body, the cooling pipe is connected to a circulating water inlet pipe and a circulating water outlet pipe, the circulating water inlet pipe and the circulating water outlet pipe are connected to the side of the cover body, the circulating water inlet pipe and the circulating water outlet pipe are respectively connected to control valves, the material of the cover body is a composite layered structure, the composite layered structure includes a cooling pipe, an alumina fiber layer, a resin layer, a first adhesive film layer, a foam layer, a second adhesive film layer and a carbon fiber layer connected in sequence from the inside to the outside.

2. The battery box cover for new energy vehicles according to claim 1, characterized in that: The lower end of the cover is connected to a positive electrode current collecting sheet and a negative electrode current collecting sheet, and the upper end of the cover is provided with a positive electrode column and a negative electrode column, the positive electrode column is electrically connected to the positive electrode current collecting sheet, and the negative electrode column is electrically connected to the negative electrode current collecting sheet.

3. The battery box cover for new energy vehicles according to claim 2, characterized in that: The positive electrode current collecting sheet and the negative electrode current collecting sheet are both strip-shaped and arranged in parallel.

4. The battery box cover for new energy vehicles according to claim 3, characterized in that: The positive electrode column and the negative electrode column are arranged between the positive electrode current collecting sheet and the negative electrode current collecting sheet.

5. The battery box cover for new energy vehicles according to claim 2, characterized in that: The upper end of the cover is connected with a handle.

6. The battery box cover for new energy vehicles according to claim 5, characterized in that: The handle is arranged between the positive pole and the negative pole.

7. The battery box cover for new energy vehicles according to claim 1, characterized in that: The control valve is a solenoid valve.

8. The battery box cover for new energy vehicles according to claim 1, characterized in that: A circle of sealing strip is arranged at the edge of the lower end of the cover body, and the cooling pipe is located on the inner side of the sealing strip.

9. The battery box cover for new energy vehicles according to claim 1, characterized in that: The first adhesive film layer and the second adhesive film layer are made of TPU adhesive film or epoxy adhesive film.

10. A battery box, characterized in that: It comprises a box body and a battery box cover as claimed in any one of claims 1 to 9, wherein the rear end of the cover body is connected to the box body via a rotating shaft, and the front end of the cover body is openably connected to the box body via a locking buckle.

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