CN217822996U

CN217822996U - Battery heat abstractor and transportation vehicles

Info

Publication number: CN217822996U
Application number: CN202222095305.8U
Authority: CN
Inventors: 周敏; 刘春来; 柳征; 张桐源; 徐红星
Original assignee: China Railway Hefei New Transportation Industry Investment Co ltd
Current assignee: China Railway Hefei New Transportation Industry Investment Co ltd
Priority date: 2022-08-09
Filing date: 2022-08-09
Publication date: 2022-11-15
Anticipated expiration: 2032-08-09

Abstract

The utility model provides a battery heat abstractor, be used for the lithium cell heat dissipation, battery heat abstractor includes and supports the heat transfer board of holding with the lithium cell, an evaporation pond for bearing the evaporating liquid, the setting is in the shade subassembly of evaporation pond top, the heat transfer board sets up the bottom at the evaporation pond, the evaporation pond has opening up, the shade subassembly includes and is used for covering at open-ended fretwork screen panel, a film for covering the fretwork screen panel, connect the connecting rod between film and fretwork screen panel, the film has the first state of covering at the fretwork screen panel, by the evaporation liquid vapour jack-up so that the second state that the fretwork screen panel exposes, the film is when the first state, the connecting rod level sets up, when the film is in the second state, the vertical setting of connecting rod. The utility model discloses a transportation vehicles and heat abstractor is through setting up the shade subassembly to under the condition that need not provide the external energy, realize the heat dissipation of lithium cell, and the radiating effect is good.

Description

Battery heat abstractor and transportation vehicles

Technical Field

The utility model relates to a battery heat abstractor and vehicle.

Background

The lithium battery has become one of the main choices of the power battery of the traffic vehicle due to the excellent performances of long service life, high specific energy, high-rate charge and discharge, safety, no pollution and the like. However, the lithium ion battery absorbs or generates various heat during the charge and discharge cycle, and the internal temperature of the lithium ion battery changes, which may cause great harm to the life and safety of the lithium ion battery. Therefore, the heat dissipation of the lithium battery is very important. Most of the existing heat dissipation devices are forced air cooling with poor effect and liquid cooling requiring external energy supply.

In view of the above, there is a need for an improved battery heat sink to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a battery heat abstractor to solve the not good or problem that needs outside energy supply of current lithium cell radiating effect.

In order to realize the above object, the utility model provides a battery heat abstractor for the lithium cell heat dissipation, battery heat abstractor include with the lithium cell supports the heat transfer board held, is used for bearing evaporation liquid evaporation pond, sets up the shade subassembly of evaporation pond top, the heat transfer board sets up the bottom in evaporation pond, the evaporation pond has opening up, the shade subassembly includes and is used for covering open-ended fretwork screen panel, is used for covering the film of fretwork screen panel, connection the film with connecting rod between the fretwork screen panel, be equipped with the through-hole that supplies the air business turn over on the fretwork screen panel, the film has the cover the first state of fretwork screen panel, by evaporation liquid vapour jack-up so that the second state that the fretwork screen panel exposes.

As the utility model discloses further improve, the shade subassembly includes the hinge, the hinge is used for connecting the fretwork screen panel with the connecting rod.

As a further improvement, the connecting rod and the hinge are disposed on both sides of the hollow mesh enclosure.

As a further improvement of the utility model, the number of the connecting rods and the hinges on one side is three.

As a further improvement, the battery heat sink further comprises a main body structure for enclosing the side wall of the evaporation tank.

As the utility model discloses further improve, the intercommunication has been seted up on the major structure the heat dissipation wind channel in evaporation pond.

As a further improvement, an exhaust fan is arranged in the heat dissipation air duct.

As the utility model discloses further improve, the heat dissipation wind channel has the air intake of setting in one end, sets up at the air exit of the other end, sets up the air intake with intercommunication mouth between the air exit, the intercommunication mouth with the evaporation pond intercommunication, the air intake with the air exit is located same one side the major structure is last.

As a further improvement, the main structure is located the both sides of the air outlet are extended outwards to form a protruding part so that the air outlet extends along the horizontal direction to form a protruding part at the outside of the air inlet.

The utility model also provides a transportation vehicles, transportation vehicles include the lithium cell, as above-mentioned battery cooling device.

The utility model has the advantages that: the utility model discloses a transportation vehicles and heat abstractor is through setting up the shade subassembly to under the condition that need not provide the external energy source, realize the heat dissipation of lithium cell, and the radiating effect is good.

Drawings

Fig. 1 is a schematic structural view of a battery heat dissipation device of the present invention;

FIG. 2 isbase:Sub>A schematic cross-sectional view A-A of FIG. 1;

fig. 3 is a schematic structural view of a mask assembly of the battery heat dissipation device of the present invention between a first state and a second state;

fig. 4 is a schematic structural diagram of the cover assembly of the battery heat dissipation device in the second state according to the present invention.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. Furthermore, the technical features mentioned in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

As shown in fig. 1 to fig. 4, the transportation vehicle provided by the present invention includes a lithium battery 200 and a battery heat sink 100, wherein the heat sink 100 is used for dissipating heat from the lithium battery 200.

The battery heat dissipation device 100 includes a heat exchange plate 1 abutting against the lithium battery 200, an evaporation tank 2 for carrying an evaporation liquid 21, a main structure 3 for enclosing a side wall forming the evaporation tank 2, and a mask assembly 4 disposed above the evaporation tank 2.

The heat exchange plate 1 is made of a material with excellent heat conductivity, and when the lithium battery 200 works, heat is generated and is transferred through the heat exchange plate 1.

The heat exchange plate 1 is arranged at the bottom of the evaporation tank 2, the main body structure 3 is surrounded with a side wall forming the evaporation tank 2, an upward opening is formed in the top of the evaporation tank 2, the evaporated liquid 21 is contained in the evaporation tank 2, when the temperature of the heat exchange plate 1 rises, the evaporated liquid 21 is transferred to the evaporated liquid 21 in a thermal contact mode, and the evaporated liquid 21 absorbs heat and evaporates to take away a part of heat.

The mask assembly 4 includes a hollow mesh enclosure 41 for covering the opening, a film 42 for covering the hollow mesh enclosure 41, a connecting rod 43 connected between the film 42 and the hollow mesh enclosure 41, and a hinge 44.

The hollow mesh enclosure 41 is provided with a through hole for air to enter and exit, and the hollow mesh enclosure 41 mainly plays a role in supporting the thin film 42.

The film 42 has a first state covering the hollow mesh enclosure 41 and a second state being lifted by the vapor of the evaporation liquid 21 to expose the hollow mesh enclosure 41.

When the thin film 42 is in the first state, the thin film can cover the hollow mesh enclosure 41, and further cover the opening at the top of the evaporation tank 2, so as to prevent evaporation of the evaporation liquid 21 or dust and impurities from falling into the evaporation tank 2, and at this time, the lithium battery 200 does not work, or the temperature is low and heat dissipation is not needed.

When the film 42 is in the second state, the film is spaced from the hollow mesh enclosure 41 by a distance, so that the evaporation gas of the evaporation liquid 21 can be emitted from the gap between the hollow mesh enclosure 41 and the film 42, thereby taking away heat and realizing the heat dissipation effect. At this time, the lithium battery 200 is in a high-temperature working environment, automatically transfers heat to the heat exchange plate 1, and further transfers heat to the evaporation liquid 21, and the vapor pressure in the evaporation tank 2 is increased by the vapor of the evaporation liquid 21, so as to realize a second state of jacking up the thin film 42.

The hinge 44 is used to connect the hollow mesh enclosure 41 and the connecting rod 43, and the connecting rod 43 is used to support the hollow mesh enclosure 41.

The connecting rod 43 and the hinge 44 are disposed on two sides of the hollow mesh enclosure 41. The number of the links 43 and the hinges 44 on one side is three.

When the membrane 42 is in the first state, the links 43 are arranged horizontally, and when the membrane 42 is in the second state, the links 43 are arranged vertically. It should be noted that the horizontal direction is not completely parallel to the ground or the thin film, and an included angle of plus or minus 5 degrees is considered as a horizontal state, and correspondingly, the vertical direction is not completely perpendicular to the ground or the thin film, and an included angle of plus or minus 5 degrees is considered as a vertical state.

The main structure 3 is provided with a heat dissipation air duct 31 communicated with the evaporation tank 2, and an exhaust fan 314 is arranged in the heat dissipation air duct 31.

The heat dissipation air duct 31 has an air inlet 311 disposed at one end, an air outlet 312 disposed at the other end, and a communication port 313 disposed between the air inlet 311 and the air outlet 312, the communication port 313 is communicated with the evaporation tank 2, and the air inlet 311 and the air outlet 312 are located on the same side of the main body structure 3. The exhaust fan 314 is disposed at the communication port 313 to exhaust the evaporated liquid 21 gas in the evaporation tank 2.

The main structure 3 is provided with protruding portions protruding outwards at two sides of the air outlet 312 so that the air outlet 312 protrudes outside the air inlet 311 along the horizontal direction. In this embodiment, the protruding portion is obliquely disposed from the air outlet 312 toward two sides.

The heat dissipation air duct 31 is disposed on both sides of the main body structure 3.

When the vehicle is running, fast wind blows through the air inlets 311 and the air outlets 312 on the two sides of the heat dissipation device 100 of the vehicle-mounted lithium battery 200, and according to the bernoulli principle, when the wind passes through, the wind speed is low and the pressure is high when the wind passes through a flat wind opening, namely the air inlets 311, in the same time; when the air passes through the convex air outlet, namely the air outlet 312, the air speed is high, the pressure is low, and then a pressure difference occurs in the heat dissipation air duct 31, so that the air smoothly enters the heat dissipation air duct 31 to form an air flow, and the fan 314 in the heat dissipation air duct 31 is driven to rotate. Meanwhile, the evaporation liquid 21 in the evaporation tank 2 starts evaporation and gasification after the temperature of the lithium battery 200 at the bottom is raised, steam is substituted into the heat dissipation air duct 31 through the rotation of the exhaust fan 314, and the further heat dissipation of the lithium battery 200 is realized along with the discharge of air flowing in the heat dissipation air duct 31.

The transportation vehicle and heat dissipation device 100 of the present invention, by providing the mask assembly 4, can realize the heat dissipation of the lithium battery 200 without providing external energy, and the heat dissipation effect is good; through setting up heat dissipation wind channel 31, utilize heat dissipation wind channel 31 and exhaust fan 314 to realize the air flow heat dissipation under the effect of wind, greatly promoted lithium cell 200's radiating efficiency, further strengthened the radiating effect.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent several embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The utility model provides a battery heat abstractor for the lithium cell heat dissipation, its characterized in that: the battery heat dissipation device comprises a heat exchange plate abutted against the lithium battery, an evaporation pool used for bearing evaporation liquid, and a mask assembly arranged above the evaporation pool, wherein the heat exchange plate is arranged at the bottom of the evaporation pool, the evaporation pool is provided with an upward opening, the mask assembly comprises a hollow mesh enclosure used for covering the opening, a thin film used for covering the hollow mesh enclosure, and a connecting rod connected between the thin film and the hollow mesh enclosure, the thin film is in a first state of the hollow mesh enclosure and is jacked up by vapor of the evaporation liquid so that the hollow mesh enclosure is exposed in a second state, when the thin film is in the first state, the connecting rod is horizontally arranged, and when the thin film is in the second state, the connecting rod is vertically arranged.

2. The battery heat sink of claim 1, wherein: the shade assembly comprises a hinge, and the hinge is used for connecting the hollow mesh enclosure and the connecting rod.

3. The battery heat sink of claim 2, wherein: the connecting rod and the hinge are arranged on two sides of the hollow mesh enclosure.

4. The battery heat sink of claim 3, wherein: the number of the connecting rods and the hinges on one side is three.

5. The battery heat sink of claim 1, wherein: the battery heat sink further comprises a main body structure for enclosing the side wall forming the evaporation pool.

6. The battery heat sink of claim 5, wherein: and the main structure is provided with a heat dissipation air duct communicated with the evaporation tank.

7. The battery heat sink of claim 6, wherein: an exhaust fan is arranged in the heat dissipation air duct.

8. The battery heat sink of claim 7, wherein: the heat dissipation air duct is provided with an air inlet arranged at one end, an air outlet arranged at the other end, and a communication port arranged between the air inlet and the air outlet, the communication port is communicated with the evaporation pool, and the air inlet and the air outlet are positioned on the same side of the main body structure.

9. The battery heat sink of claim 8, wherein: the main structure is provided with protruding parts protruding outwards on two sides of the air outlet so that the air outlet protrudes outwards along the horizontal direction of the outer side of the air inlet.

10. A transportation vehicle characterized by: the transportation vehicle comprising a lithium battery, the battery heat sink of any one of claims 1-9.