[1]
Technical Field
[2]
The application relates to a battery box and battery pack.
[3]
Background Art
[4]
With the electric automobile and energy storage industry to develop, the lithium ion battery as its core element has attracted much attention. The battery is in the large amount of hot easy during working to produce heat accumulation so that the battery temperature continues to rise, serious or even safety accidents, so that effective control of the temperature of the battery thermal management design become increasingly important.
[5]
The present thermal management scheme is mainly divided into four: natural cooling, air-cooled, liquid-cooling and direct cooling. At this stage, natural cooling and air-cooled although to a certain extent can be taken away a portion of the heat, but the heat exchange efficiency is quite limited, cannot fundamentally solve the problem of heat dissipation. On the other hand, taking into account the heat management scheme in addition to the heat exchange efficiency also need to give consideration to the homogeneity of the temperature of the battery, therefore compatible with the two liquid cooling technology has gradually become the mainstream scheme of the present.
[6]
In the traditional liquid cooling in the scheme to ensure that the heat exchange efficiency, needs to ensure that the heat transfer medium to maintain close contact with the battery, that is to say throughout the refrigeration loop liquid cooling line fixed mode is particularly important.
[7]
Content of the invention
[8]
The object of the application is: against the above problem, provides a battery box and a battery pack with such a battery, in order to optimize to box battery temperature controlling effect.
[9]
The application of the technical scheme is:
[10]
A battery box, comprises a body with an open top and is arranged on the top of the box to hide the box cover, the box body is internally provided with a heat insulation box, frames and the thermal insulation inner box includes:
[11]
With the arrangement of the inner bottom wall of the tank body against the heat-insulating plate,
[12]
The heat insulation around the periphery of the insulating bottom plate, and the inner side wall with the box body and the arrangement of the plurality of block against the side of the heat insulation, and
[13]
In parallel to each other is connected to the two frames and the thermal insulation between the side plates and a number of blocks of the heat-insulating partition.
[14]
This application this battery box in on the basis of the above technical scheme, also comprises the following preferred scheme:
[15]
The heat-insulating base plate, heat-insulating side plates and heat-insulating partition is the insulating material.
[16]
The heat-insulating base plate, heat-insulating side plates and heat-insulating partition is an integrated structure.
[17]
A battery pack, including the above-mentioned structure of the battery box and contained in the battery box is in the battery module, each of said battery module are set is contained in the heat insulation in the air, and the thermal insulating partition frames located between adjacent said battery module.
[18]
The application of this kind of battery pack in on the basis of the above technical scheme, also comprises the following preferred scheme:
[19]
The heat-insulating the inner box is connected with the water at the top of the cold plate, the water cooling plate and the battery module is arranged between the heat conducting silica gel or insulating varnish.
[20]
The battery module inserted in the water with the cold plate thermally connected to the conductor.
[21]
The heat conductor is an aluminum sheet or flake graphite.
[22]
The water of the cold plate and the heat insulation and the inner box and through the screw-locking connection.
[23]
The heat insulation of the side plate and the top of the heat-insulating partition are provided with a plurality of screw holes, the screw down through the water of the cold plate and the screw holes in the .
[24]
The heat-insulating partition is lower than the height of the heat-insulation side.
[25]
The invention has the advantages of:
[26]
1. The application of this kind of battery pack adopts the warehouse-style heat insulation structure, all of the battery module are all contained in the heat insulation in the interior of the box, the top of the water cooling plate for plugging, the entire battery pack in addition to the above the water cooling plate of the outer may be approximately seen as one heat insulation in a small space, its thermal insulation performance. The battery module of the heat only to the water cooling plate transfer, in addition to the water from the cold plate, the battery temperature is not affected by other factors, is easy to control the temperature of the battery module.
[27]
2. Heat insulation of the inner box is an insulating material, at the same time between any adjacent battery module by insulating the heat insulation are separated by a baffle plate, without the need of additional set up the insulating plate, reduces the cost of the battery pack.
[28]
3. Water cooling plate with the heat insulation of the inner box by means of a plurality of scatter arrangement via screws, each connecting point stress uniformity is good, even if in the vibration environment, is not easy to have the problem of falling of a screws.
[29]
4. Arbitrary adjacent battery module between the insulating heat insulation by separated by a baffle plate, if one of the battery module generating thermal runaway, heat-insulating partition can limit its thermal diffusion channels, in order to block or inhibit the proliferation of thermal runaway.
[30]
Description of drawings
[31]
In order to more clearly illustrate the application of the embodiment of the technical scheme, to below in the description of the embodiment of the need to use the diagram for a brief account of, is described below in the Figure only is some embodiments of this application, for the ordinary skill in the art is concerned, in the creative work of the premise of pay, can also be on the basis of these with photos to obtain the other of the Figure.
[32]
Figure 1 is the decomposition structure diagram of an embodiment of the invention battery pack;
[33]
Figure 2 is the structure diagram of an embodiment of the invention water cooling plate;
[34]
Wherein: 1 - box, 2 - box cover, 3 - heat insulation box, 301 - heat-insulating side plates, 302 - heat-insulating partition, 4 - battery module, 5 - water cooling plate.
[35]
Mode of execution
[36]
Below the Figure through specific embodiment to this application for further details. The application can in order to many kinds of different forms to realize, is not limited to the embodiment described in the embodiment. The provision of the following specific embodiment is intended to facilitate this application discloses a thorough understanding of the …