CN217035836U - Power battery cabin with heat preservation layer - Google Patents
Power battery cabin with heat preservation layer Download PDFInfo
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- CN217035836U CN217035836U CN202122389028.7U CN202122389028U CN217035836U CN 217035836 U CN217035836 U CN 217035836U CN 202122389028 U CN202122389028 U CN 202122389028U CN 217035836 U CN217035836 U CN 217035836U
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- battery compartment
- power battery
- heat insulation
- battery
- sealing plate
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Abstract
The utility model discloses a power battery compartment with a heat insulation layer, which consists of a battery compartment body and battery compartment doors arranged on the left side and the right side of the battery compartment body, wherein the front side, the rear side and the bottom of the battery compartment body are interlayers consisting of an inner sealing plate and an outer sealing plate, the heat insulation layer is filled in the interlayers, and the heat insulation layer is rigid polyurethane foam. The utility model can improve the heat preservation effect of the battery compartment, reduce the noise and effectively prolong the service life of the battery.
Description
Technical Field
The utility model belongs to the technical field of pure electric buses, and particularly relates to a power battery compartment with a heat insulation layer.
Background
The pure electric bus is a bus which takes a vehicle-mounted power supply (power battery) as power and is driven to run by matching with a proper vehicle-mounted power battery to provide electric energy. At present, most of passenger car power batteries are installed in a power battery cabin below a car body floor (secondary stepping) or a power battery cabin at the tail of a car (primary stepping), the power battery cabin consists of a battery cabin body and battery cabin doors arranged on the left side and the right side of the battery cabin body, the existing battery cabin body is formed by sealing an inner sealing plate, and due to the fact that no thermal insulation material exists, the power battery cabin cannot be insulated in winter, and therefore attenuation and use electric quantity of the power batteries are increased.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problems and provides a power battery compartment which has a good heat preservation effect and can effectively prolong the service life of a battery.
In order to achieve the purpose, the utility model provides a power battery cabin with a heat insulation layer, wherein the power battery cabin comprises a battery cabin body and battery cabin doors arranged on the left side and the right side of the battery cabin body, the front side, the rear side and the bottom of the battery cabin body are interlayers consisting of an inner sealing plate and an outer sealing plate, and the heat insulation layer is filled in the interlayers.
The heat-insulating layer is made of hard polyurethane foam.
The heat dissipation port of the battery compartment door is provided with heat insulation cotton, one side of the heat insulation cotton, far away from the heat dissipation port, is provided with a sealing plate, and the sealing plate is connected with the battery compartment door through a screw.
Advantages and advantageous effects of the utility model
1. According to the utility model, the hard polyurethane foam is filled in the interlayers at the front side, the rear side and the bottom of the battery cabin body, and the gaps between the bottom frameworks of the automobile can be effectively filled through the on-site foam of the hard polyurethane foam, so that the effect of isolating the outside cold air is achieved, the heat insulation effect of the power battery cabin is improved, and the service life of the power battery is prolonged.
2. The inner sealing plates at the front side, the rear side and the bottom of the battery compartment body are arranged on the framework of the electric motor coach chassis, rigid polyurethane foam is used for spraying the gaps of the framework of the electric motor coach chassis, the gaps among the frameworks can be effectively filled after the rigid polyurethane foam is foamed, and finally the outer sealing plate is arranged under the framework of the electric motor coach chassis through the tapping screw, so that the inner sealing plates, the frameworks and the outer sealing plate are connected in a seamless mode to form a whole, the sealing performance of the power battery compartment is improved, and the excellent heat insulation and sealing effects are achieved.
3. The interlayer of the utility model is filled with rigid polyurethane foam, and the rigid polyurethane foam contains a flame retardant, so that the interlayer has better flame retardance and is beneficial to the fire safety of the power battery compartment.
4. The heat-insulating cotton is arranged at the heat-radiating port of the battery compartment door, so that the battery compartment door is integrally sealed, a closed and heat-insulating space is formed in the power battery compartment in a low-temperature environment, the temperature drop of the battery is reduced, and the service life of the battery is prolonged.
5. The heat-insulating layer is made of rigid polyurethane foam, and the rigid polyurethane foam is a heat-insulating material with good comprehensive performance and wide application. Compared with other heat insulating materials, it has the advantages of small capacity, good heat insulating performance, high strength, good dimensional stability, low water absorption rate and the like.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the description below are only embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is an overall schematic view of a passenger car.
Fig. 2 is a sectional view at a in fig. 1 (a structural view of a chassis of an electric motor coach filled with rigid polyurethane foam).
Fig. 3 is an enlarged view at the battery compartment door of the present invention.
Fig. 4 is a cross-sectional view at B in fig. 2 (schematic view of the front and rear side walls and bottom of the electric passenger car filled with rigid polyurethane foam).
Fig. 5 is a cross-sectional view at C in fig. 2 (the battery compartment is filled with rigid polyurethane foam and the heat sink of the battery compartment door is provided with insulation cotton).
The reference numbers of the battery cabin body 1, the battery cabin door 2, the inner sealing plate 3, the outer sealing plate 4, the interlayer 5, the hard polyurethane foam 6, the heat insulation cotton 7 and the sealing plate 8.
Detailed Description
Detailed description of the utility modelreference will now be made in detail to the embodiments of the present invention, some of which are illustrated in the accompanying drawings, and not all of which are illustrated in the accompanying drawings. In view of the fact that those skilled in the art can obtain all other embodiments without creative efforts, which belong to the protection scope of the present invention, the following description will take an example of a two-step power battery compartment.
As shown in fig. 1, 2 and 4, the power battery compartment with the heat insulation layer is composed of a battery compartment body 1 and battery compartment doors 2 arranged on the left side and the right side of the battery compartment body, interlayers 5 composed of an inner sealing plate 3 and an outer sealing plate 4 are arranged on the front side, the rear side and the bottom of the battery compartment body 1, the heat insulation layer is filled in the interlayers 5, the heat insulation layer is rigid polyurethane foam 6, and the interlayers between the inner sealing plate and the outer sealing plate can be effectively filled by the rigid polyurethane foam 6 through field foaming, so that the heat insulation and noise reduction effects are achieved.
As shown in fig. 3 and 5, in order to further increase the heat insulation performance of the power battery compartment in winter, heat insulation cotton 7 may be disposed at the heat dissipation port of the battery compartment door 2, a sealing plate 8 is disposed on a side of the heat insulation cotton 7 away from the heat dissipation port, and the sealing plate 8 is connected with the battery compartment door 2 through a screw, so that the heat insulation cotton 7 is located between the battery compartment door 2 and the sealing plate 8, and thus a closed and heat-insulating space is formed in the battery compartment, the decrease in the temperature of the battery is reduced, the service life of the battery is prolonged, and when the weather is hot, the heat insulation cotton 7 and the sealing plate 8 can be removed to facilitate heat dissipation through the heat dissipation port.
When the rigid polyurethane foaming 6 is fixed in the interlayer 5 between the inner sealing plate 3 and the outer sealing plate 4, the inner sealing plate 3, the framework and the outer sealing plate 4 can be connected in a seamless way to form a whole, the sealing property of a power battery compartment is improved, and excellent heat insulation, heat preservation and sealing effects are achieved.
Claims (3)
1. The utility model provides a power battery cabin with heat preservation, the power battery cabin comprises the battery cabin body and sets up the battery cabin door in the battery cabin body left and right sides, its characterized in that, both sides and bottom are the intermediate layer of compriseing interior shrouding and outer shrouding around the battery cabin body, the intermediate layer intussuseption is filled with the heat preservation.
2. The power battery compartment with the insulating layer according to claim 1, wherein the insulating layer is rigid polyurethane foam.
3. The power battery compartment with the heat insulation layer as claimed in claim 1 or 2, wherein the heat radiation port of the battery compartment door is provided with heat insulation cotton, and a sealing plate is arranged on one side of the heat insulation cotton away from the heat radiation port and connected with the battery compartment door through a screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122389028.7U CN217035836U (en) | 2021-09-30 | 2021-09-30 | Power battery cabin with heat preservation layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122389028.7U CN217035836U (en) | 2021-09-30 | 2021-09-30 | Power battery cabin with heat preservation layer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217035836U true CN217035836U (en) | 2022-07-22 |
Family
ID=82410571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122389028.7U Active CN217035836U (en) | 2021-09-30 | 2021-09-30 | Power battery cabin with heat preservation layer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217035836U (en) |
-
2021
- 2021-09-30 CN CN202122389028.7U patent/CN217035836U/en active Active
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