CN214848788U

CN214848788U - Electric motor car battery heating heat preservation device, electric motor car battery and electric motor car

Info

Publication number: CN214848788U
Application number: CN202120245094.4U
Authority: CN
Inventors: 耿京要; 宋力建; 张传习
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-01-28
Filing date: 2021-01-28
Publication date: 2021-11-23
Anticipated expiration: 2031-01-28

Abstract

The utility model provides an electric motor car battery heating heat preservation device, including the cladding body that is used for wrapping up electric motor car battery, the cladding body includes the zone of heating and sets up the insulating layer in the zone of heating outside, the zone of heating is the graphite alkene zone of heating. The heating and heat-insulating device has the advantages of more stable heating performance, high electric-heat conversion efficiency and high heating speed. Furthermore the utility model discloses still provide the electric motor car battery and the electric motor car that use this electric motor car battery heating heat preservation device, it can not be because of in winter originally the continuation of the journey mileage just lost corresponding continuation of the journey mileage because of the power consumption is too big when giving self heating, and the effect of promoting the continuation of the journey mileage after installing additional is better.

Description

Electric motor car battery heating heat preservation device, electric motor car battery and electric motor car

Technical Field

The utility model belongs to the technical field of electric vehicle, especially, relate to an electric motor car battery heating heat preservation device, electric motor car battery and electric motor car.

Background

Electric vehicles, including electric motorcycles for riding and electric automobiles for driving, have been widely popularized in recent years due to the use of green energy, which is electric energy and does not generate carbon emission. The battery of the existing electric vehicle, no matter a lithium battery or a lead-acid battery, is converted into electric energy through chemical energy, so that the problem of efficiency reduction of the battery in a low-temperature environment (namely in winter) due to reduction of molecular thermal motion is solved, the cruising mileage of the battery is reduced by 20-40% in the north China area, and the battery is even more suitable for high-altitude areas such as the northeast China, so that the use and popularization of the electric vehicle are limited.

Therefore, a plurality of electric vehicle battery heating and heat insulating devices are provided at present, for example, a scheme of heating by using a resistance wire or a heat pump is adopted, but because the energy supply of the heating device is provided by the electric vehicle battery, the power consumption of the existing battery heating device is larger, and a battery with lower endurance mileage in winter also consumes a large amount of electric energy (namely, the endurance mileage is lost) when heating the battery, the problem that the improvement of the endurance mileage after the increase of the battery heating and heat insulating device is not obvious is solved.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that an electric motor car battery heating heat preservation device, electric motor car battery and electric motor car that improve promotion continuation of the journey mileage effect are better are provided.

In order to solve the technical problem, the utility model adopts the following technical scheme:

the utility model provides an electric motor car battery heating heat preservation device, is including the cladding body that is used for wrapping up electric motor car battery, the cladding body includes the zone of heating and sets up the insulating layer in the zone of heating outside, the zone of heating is the graphite alkene zone of heating.

Further: and a first reflecting layer is arranged between the graphene heating layer and the heat insulation layer.

Further: the heat insulation layer comprises a first heat insulation layer arranged on the outer side of the first light reflection layer, and a second light reflection layer is arranged on the outer side of the first heat insulation layer.

Further: the heat insulation layer further comprises a second heat insulation layer, and the second heat insulation layer is arranged on the outer side of the second light reflection layer.

Further: the insulating layer is an aerogel insulating layer.

Further: the graphene heating layer is electrically connected with a temperature controller for monitoring the temperature of the battery of the electric vehicle.

An electric vehicle battery comprises the electric vehicle battery heating and heat-preserving device.

An electric vehicle comprises the electric vehicle battery.

By adopting the technical scheme, the utility model has the technical effects that the electric vehicle battery heating and heat-insulating device is provided, the electric heat conversion efficiency of the graphene material of the heating and heat-insulating device can reach more than 99 percent and is higher than that of other electric heat conversion materials such as a resistance wire, so that the electric vehicle battery can keep more electric quantity for increasing the endurance mileage; in addition, the heating mode of heat radiation is directly carried out through infrared rays, the mode of heating the battery by adopting a heat medium (gas or liquid) which is heated firstly and then by the heat medium in a traditional heat pump is compared, the heating speed is high, the infrared rays also have certain penetrating power, the inside of the battery can be heated more quickly, and therefore when the electric vehicle is charged outdoors, the battery which is consistent with the outside air temperature can be quickly heated to reach a suitable charging temperature, the charging efficiency is improved, and the foundation is laid for quick charging.

The electric vehicle battery using the heating and heat-insulating device and the corresponding electric vehicle can not lose the corresponding endurance mileage due to too large energy consumption when the battery with lower endurance mileage originally in winter is heated, and the effect of improving the endurance mileage after the battery is additionally installed is better.

Drawings

Fig. 1 is a schematic structural sectional view of the electric vehicle battery heating and heat-preserving device of the present invention.

The solar cell comprises a graphene heating layer 1, a first reflecting layer 2, a first heat insulation layer 3, a second reflecting layer 4, a second heat insulation layer 5, a battery accommodating cavity 6 and a lead opening 7.

Detailed Description

As shown in figure 1, the utility model discloses an electric motor car battery heating heat preservation device includes that one has the cladding body that the battery held chamber 6, the battery holds chamber 6 and is the space that holds the electric motor car battery. In this embodiment it is provided with a lead opening 7 to the outside for the lead of the battery to be connected to the outside. Of course, the cover itself has fewer openings or seams as the primary means of heating and insulating the battery of the electric vehicle, such as a cover that, while it may be provided in a split structure with a box and a lid, is preferably of unitary construction to reduce seams, such as being made of a flexible sheet of material to wrap the battery, and further such as with the development of unlimited charging and discharging technology, it is preferable that the cover no longer have wire openings 7.

The coating body of the utility model comprises a graphene heating layer 1. Graphene heating layer 1 utilizes graphene can produce the hall effect after the circular telegram to produce electromagnetic conversion, make electric energy conversion outwards carry out the heat radiation to the infrared ray, and then the heating is by a zone of heating of thermal radiating object.

The electric heating conversion efficiency of the graphene material of the graphene heating layer 1 can be higher than 99% and is higher than that of other electric heating conversion materials such as a resistance wire, so that the battery of the electric vehicle can hold more electric quantity to increase the endurance mileage; in addition, the heating mode of heat radiation is directly carried out through infrared rays, the mode of heating the battery by adopting a heat medium (gas or liquid) which is heated firstly and then by the heat medium in a traditional heat pump is compared, the heating speed is high, the infrared rays also have certain penetrating power, the inside of the battery can be heated more quickly, and therefore when the electric vehicle is charged outdoors, the battery which is consistent with the outside air temperature can be quickly heated to reach a suitable charging temperature, the charging efficiency is improved, and the foundation is laid for quick charging.

In addition, the first light reflecting layer 2 is disposed outside the graphene heating layer 1 in this embodiment. The reflecting layer can be made of a silver-plated or aluminum-plated film, or the outer surface of an adjacent object is directly plated with silver or aluminum.

Set up this reflector layer because graphite alkene zone of heating 1 outwards carries out the heat radiation through this kind of electromagnetic wave of infrared ray and heats, and this heat radiation is non-directional, and is also inwards, outwards all can produce the heat radiation, and set up and just can reflect outside heat radiation back inboard at graphite alkene zone of heating 1 outer reflector layer, has avoided thermal meaningless dissipation, has increased heating effect and has saved the energy consumption.

In addition, in this embodiment, a first heat insulating layer 3 is further disposed outside the first light reflecting layer 2. The heat insulation layer is arranged to aim at: although the first reflective layer 2 reflects a large amount of infrared rays, it is inevitably heated by heat radiation, heat conduction or heat convection inside itself, so that heat is dissipated to the outside through the reflective layer, and the heat insulation layer is provided to prevent the heat from being dissipated.

The thermal insulation layer can be made of the existing traditional thermal insulation material or method, such as a polyurethane foam material layer, a multilayer aluminized film composite thermal insulation layer or a vacuum layer, but in the embodiment, the thermal insulation layer is preferably an aerogel thermal insulation layer. Compared with the thermal insulation layer made of the traditional material, the aerogel thermal insulation layer has the advantages of lighter weight and smaller volume under the same effect, which is very important for the battery of the electric vehicle, the lighter weight means that the cargo capacity is increased or the endurance mileage is longer, and more importantly, the battery of the electric vehicle is one of the parts with the largest volume on the electric vehicle, which is particularly important for the electric vehicle, and for the heating and thermal insulation device coated outside the battery, the overall volume of the battery assembly needs to be increased as little as possible, so that the arrangement of the vehicle parts is more favorable, and space is made for other parts or a cab.

In addition, in this embodiment, a second reflective layer 4 is disposed outside the first thermal insulation layer 3. This is so arranged that: if first insulating layer 3 has adopted vacuum layer or aerogel to insulate against heat for its outstanding separation effect to heat conduction and thermal convection for thermal radiation just becomes its main heat dissipation mode, consequently increases one deck reflector layer again, alright effectively prevent this heat dissipation passageway, thereby has improved the whole heat preservation effect of device.

In addition, in extremely cold regions, the second heat insulation layer 5 can be arranged outside the second reflective layer 4, so that a stronger heat insulation effect is achieved.

After the arrangement, the heat preservation effect of the battery can finally reach the heat preservation effect that the battery at 25 ℃ is slowly cooled to 20 ℃ after 8-10 hours at the external environment temperature of minus 40 ℃ in a non-heating state.

In addition, because the best operating temperature of the battery of the electric vehicle is about 25 ℃, the temperature controller can be connected to the graphene heating layer 1, and the temperature measuring point of the temperature controller is arranged in the battery accommodating cavity 6 to monitor the temperature of the battery, so that the battery working efficiency can be prevented from being reduced due to too low temperature of the battery, and potential safety hazards caused by overheating of the battery can be prevented.

Finally, it should be noted that, the present embodiment only lists the functional layers for the battery heating and thermal insulation, which does not mean that the electric vehicle battery heating and thermal insulation device of the present invention only has the functional layers as above; other functional layers for connecting, supporting and protecting, such as the housing and other parts for protecting the whole device, can be arranged according to the prior art or the common knowledge, and are not explained much in the embodiment.

Claims

1. The utility model provides an electric motor car battery heating heat preservation device which characterized in that: including the inclusion that is used for wrapping up electric motor car battery, the inclusion includes the zone of heating and sets up the insulating layer in the zone of heating outside, the zone of heating is graphite alkene zone of heating (1) with be provided with first reflector layer (2) between the insulating layer, the insulating layer is including setting up first insulating layer (3) in first reflector layer (2) outside the outside of first insulating layer (3) is provided with second reflector layer (4), the insulating layer still includes second insulating layer (5), second insulating layer (5) set up the outside of second reflector layer (4), the insulating layer is aerogel insulating layer or vacuum layer.

2. The electric vehicle battery heating and heat preserving device as claimed in claim 1, wherein: the graphene heating layer (1) is electrically connected with a temperature controller for monitoring the temperature of the battery of the electric vehicle.

3. An electric vehicle battery, characterized in that: comprising the electric vehicle battery heating and insulating device of claim 1 or 2.

4. An electric vehicle, characterized in that: comprising the electric vehicle battery of claim 3.