CN215451526U

CN215451526U - Power battery air cooling structure

Info

Publication number: CN215451526U
Application number: CN202022446691.1U
Authority: CN
Inventors: 林宗源; 黄志琛; 王雪扬; 王霞
Original assignee: Shenzhen Kexun Technology Co ltd
Current assignee: Shenzhen Kexun Technology Co ltd
Priority date: 2020-10-29
Filing date: 2020-10-29
Publication date: 2022-01-07
Anticipated expiration: 2030-10-29

Abstract

The utility model discloses a power battery air cooling structure, which comprises: the battery comprises a plurality of single battery cells and a fixed frame, wherein the plurality of single battery cells are all arranged inside the fixed frame; the stop blocks are in a triangular shape, the stop blocks are arranged on one side of the fixed frame at intervals, the stop blocks correspond to the single battery cells one by one, and one corner of each stop block faces to the direction far away from the single battery cells; the inside cavity of forced air cooling case, the one end of forced air cooling case is equipped with the air intake, and fixed frame erects the inside of arranging the forced air cooling case in, and fixed frame is equipped with one side of dog towards the air intake, and fixed frame is corresponding with the air intake, and one of the last and air intake back of the body of forced air cooling case is served and is equipped with the air outlet, is equipped with at least one fan in the air outlet, and the air of forced air cooling incasement is taken out to the fan. Compared with the prior art, beneficial effect lies in: the battery can be kept to operate in a normal temperature environment, the service life of the battery cell is prolonged, overhigh temperature and spontaneous combustion are avoided, and the safety of a user is guaranteed.

Description

Power battery air cooling structure

[ technical field ] A method for producing a semiconductor device

The utility model relates to the technical field of lithium battery equipment, in particular to an air cooling structure of a power battery.

[ background of the utility model ]

The wind power is generated. The development of new energy sources such as photovoltaic power generation and the like gradually draws attention of people for a matched energy storage system. Among the various types of energy storage systems, lithium ion battery energy storage systems have certain advantages in terms of manufacturing costs and conditions of use. When the lithium ion battery is applied to an energy storage system, series and parallel connection is needed to realize high-power output. The lithium ion battery releases heat in the charging and discharging process to enable the temperature of the single battery to be different, the lithium ion battery belongs to a chemical power supply and is sensitive to temperature change, the battery characteristic parameters change due to the temperature change, and the overhigh temperature can cause the service life of an energy storage system to be seriously influenced, and even serious consequences such as thermal failure, spontaneous combustion and the like occur.

In view of the above, it is desirable to provide an air cooling structure for a power battery to overcome the above-mentioned drawbacks.

[ Utility model ] content

The utility model aims to provide an air cooling structure of a power battery, which aims to reduce the temperature of a battery cell, prolong the service life of the battery cell and guarantee the safety of a user.

In order to achieve the above object, the present invention provides a power battery air-cooling structure, including: the battery comprises a plurality of single battery cells, a plurality of battery cells and a plurality of battery cells, wherein the single battery cells are arranged side by side, and two adjacent rows of the single battery cells are arranged at intervals; the fixing frame is used for fixing the single battery cells, and a plurality of single battery cells are all arranged inside the fixing frame; the baffle blocks are used for guiding and accelerating air to flow in the intervals among the monomer electric cores, the baffle blocks are triangular, the baffle blocks are provided with a plurality of baffle blocks and are respectively arranged on one side of the fixed frame at intervals, the baffle blocks are respectively in one-to-one correspondence with the monomer electric cores, and one corner of each baffle block faces to the direction far away from the monomer electric cores; the air cooling box, the inside cavity of air cooling box, the one end of air cooling box is equipped with the air intake, fixed frame set up in the inside of air cooling box, fixed frame is equipped with one side orientation of dog the air intake, fixed frame with the air intake is corresponding, on the air cooling box with one of the air intake back of the body is served and is equipped with the air outlet, be equipped with at least one fan in the air outlet, the fan will air in the air cooling box is taken out.

In a preferred embodiment, the fixing frame includes: one surface of the lower fixing plate is provided with a plurality of lower fixing grooves which are arranged at intervals, and the monomer battery cell is placed on the lower fixing grooves; the battery cell fixing device comprises an upper fixing plate, a lower fixing plate and a plurality of battery cells, wherein one surface of the upper fixing plate is provided with a plurality of upper fixing grooves which are arranged at intervals, the upper fixing grooves correspond to the lower fixing grooves, and the upper fixing plate covers one end, far away from the lower fixing plate, of each battery cell; the limiting frame is provided with a plurality of accommodating grooves matched with the single battery cells, and the limiting frame is located between the upper fixing plate and the lower fixing plate.

In a preferred embodiment, the height of the stopper is less than or equal to the width of the single battery cell, and the width of the stopper is equal to the width of the single battery cell.

In a preferred embodiment, the stopper is fixedly connected to the limiting frame, and a distance between the stopper and the single battery cell is smaller than a width of the stopper.

In a preferred embodiment, the stop is an isosceles triangle or an equilateral triangle.

In a preferred embodiment, there are five fans.

Compared with the prior art, the air cooling structure of the power battery has the beneficial effects that: set up a dog through the front end at monomer electricity core, the dog is triangle-shaped, a closed angle is towards the air intake, thereby make wind when the dog, wind is by the dog segmentation and flow into in the interval between the monomer electricity core along two hypotenuses of dog, take away the heat of monomer electricity core, and because of the hypotenuse design of dog, make wind when getting into the interval of monomer electricity core, get into the heat of monomer electricity core in the interval with higher speed and take away, and flow out in the interval fast, and can not appear the phenomenon of indiscriminate flow because of being blockked, one end that carries on the back mutually with the air intake at the forced air cooler case is equipped with air outlet and fan, accelerate the heat discharge of monomer electricity core, make the battery keep moving in normal temperature environment, thereby promote the life of monomer electricity core, and avoid because of the high temperature, the condition of spontaneous combustion appears, guarantee user's safety.

[ description of the drawings ]

Fig. 1 is a perspective view of a power battery air-cooling structure provided by the utility model.

FIG. 2 is an exploded view of the air-cooled structure of the power battery shown in FIG. 1;

FIG. 3 is a schematic structural view of the air cooling box shown in FIG. 2;

FIG. 4 is a schematic structural view of the upper and lower fixing plates shown in FIG. 2;

FIG. 5 is a schematic structural view of the spacing frame shown in FIG. 2;

FIG. 6 is a schematic view of the air flow direction of the present invention.

In the figure:

10. an air cooling box; 101. an air inlet; 102. an air outlet; 103. a fan; 11. a single cell; 12. a fixed frame; 121. an upper fixing plate; 1211. an upper fixing groove; 122. a lower fixing plate; 1221. a lower fixing groove; 123. a limiting frame; 1231. accommodating grooves; 13. and a stop block.

[ detailed description ] embodiments

In order to make the objects, technical solutions and advantageous effects of the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and the detailed description. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the utility model, are intended for purposes of illustration only and are not intended to limit the scope of the utility model.

Referring to fig. 1 to 6, the present invention provides an air-cooling structure 100 for a power battery, which is mainly used to cool a single battery cell, prolong the service life of the single battery cell, avoid spontaneous combustion due to over-high temperature, and ensure the safety of a user.

In an embodiment of the present invention, the power battery air-cooling structure 100 includes: the air cooling box 10 is characterized in that the air cooling box 10 is made of a heat insulating material, so that external heat is prevented from being transmitted into the air cooling box 10, and heat generated by the single battery cell 11 is also prevented from being transmitted out, the single battery cell 11 is positioned in a relatively isolated environment and is prevented from being influenced by the external environment, an air inlet 101 is arranged at one end of the air cooling box 10 and is used for enabling external air to enter the air cooling box 10, five air outlets 102 are arranged at one end of the air cooling box 10 opposite to the air inlet 101, so that the entered air can flow out of the air cooling box 10, the internal environment of the air cooling box 10 is circularly cooled, in order to further improve the internal air exhaust efficiency of the air cooling box 10, a fan 103 is arranged in each air outlet 102, the fan 103 accelerates the exhaust of air with heat in the air cooling box 10, and can simultaneously suck the external air into the air cooling box 10 to improve the heat exchange efficiency, the cooling rate is accelerated.

Further, monomer electricity core 11 is cylindrical or square battery, and monomer electricity core 11 is equipped with a plurality ofly, sets up side by side each other, and 11 intervals of two adjacent rows of monomer electricity cores set up, are convenient for dispel the heat.

In an embodiment of the present invention, the plurality of unit cells 11 are respectively disposed in a fixing frame 12, the fixing frame 12 fixes the plurality of unit cells 11 therein, and the fixing frame 12 includes: the upper fixing plate 121, the lower fixing plate 122 and the limiting frame 123, the limiting frame 123 is disposed between the upper fixing plate 121 and the lower fixing plate 122, the limiting frame 123 is provided with accommodating slots 1231 corresponding to the monomer electric cores 11 one to one, the accommodating slots 1231 are spaced apart from each other, the accommodating slots 1231 penetrate through the limiting frame 123, the monomer electric cores 11 are placed in the accommodating slots 1231, the lateral movement of the monomer electric cores 11 is limited, and the monomer electric cores 11 are spaced apart from each other, so that heat dissipation is facilitated, the upper fixing plate 121 and the lower fixing plate 122 are respectively disposed on electrodes at two ends of the monomer electric cores 11, so that the monomer electric cores 11 are clamped in the middle, in order to facilitate fixing the monomer electric cores 11, an upper fixing groove 1211 is disposed on one surface of the upper fixing plate 121, and the positive ends of the monomer electric cores 11 are located in the upper fixing groove 1211, so as to limit the movement of the monomer electric cores 11; a lower fixing groove 1221 is formed in one surface of the lower fixing plate 122, and the negative electrode end of the single cell 11 is located in the lower fixing groove 1221 to limit the movement of the single cell 11; the lower fixing plate 122 is fixedly connected with the limiting frame 123 through a connecting piece, and the upper fixing plate 121 is detachably connected with the connecting piece and used for placing the monomer electric core 11 in or taking out the monomer electric core 11.

In the embodiment of the present invention, the fixing frame 12 is fixedly disposed inside the air cooling box 10, a stop 13 is disposed on a side of the fixing frame 12 facing the air inlet 101, and is used for guiding air entering from the air inlet 101 into the space between the individual electric cores 11 and accelerating the flow rate of the air in the space between the individual electric cores 11, the stop 13 is fixedly connected to the limit frame 123 and is disposed along the limit frame 123 at intervals and corresponds to the individual electric cores 11 one by one, the stop 13 is in a triangular shape, one corner of the stop 13 faces the air inlet 101, when the air enters from the air inlet 101 and passes through the stop 13, because the stop 13 is in a triangular shape, the stop 13 does not form a barrier to the air, but is split by the stop 13 and guides the air into the space between the individual electric cores 11 by the oblique side of the stop 13, and because the air flows along the oblique side and directly gushes into the space between the individual electric cores 11 due to the oblique side corresponding to the space, the speed of air flowing into the single battery cell 11 interval and flowing out of the single battery cell 11 interval is accelerated, so that rapid heat exchange is realized.

Further, in order to avoid the dog 13 to block the interval of the air entering the monomer battery cell 11, the width of the dog 13 should be consistent with the width of the monomer battery cell 11, and the situation that the air is blocked or the air is blocked by the monomer battery cell 11 due to too wide of the dog 13 or too short of the dog 13 is avoided, so that the air cannot smoothly enter the interval of the monomer battery cell 11 is avoided.

Further, because of dog 13 and spacing frame 123 fixed connection, not directly be connected with monomer electricity core 11, so there is the interval between dog 13 and the monomer electricity core 11, the air can flow along the edge on dog 13 both sides when receiving the stopping of dog 13, and when certain distance apart from dog 13, join at the rear portion of dog 13, for the emergence that prevents this condition, the interval distance of dog 13 and monomer electricity core 11 should be less than the width of dog 13, in the interval of the hypotenuse direct inflow monomer electricity core 11 of following dog 13 when making the air pass through dog 13.

Furthermore, the stop 13 may be an isosceles triangle or an equilateral triangle, the preferred equilateral triangle of the present invention is simple and convenient to manufacture, when an isosceles triangle is adopted, the length of the two oblique sides of the isosceles triangle needs to be longer than that of an equilateral triangle, for example, when the length of the isosceles triangle is shorter than that of an equilateral triangle, the function of the stop 13 is greatly reduced.

During the use, the air flows in from air intake 101, takes away the heat and flows in the interval that flows in monomer electricity core 11 through dog 13, through setting up the interior hot-air with air-cooling box 10 with higher speed of fan 103 on air-cooling box 10 this moment, discharges air-cooling box 10 with higher speed and follow air intake 101 suction with cold air through fan 103, realizes the effect of the quick heat transfer cooling of circulation.

In summary, in the air-cooling structure 100 for power battery provided by the present invention, the front end of the single battery core is provided with a block, the block is triangular, a sharp corner faces the air inlet, so that when wind passes through the stop block, the wind is split by the stop block and flows into the interval between the monomer battery cores along the two bevel edges of the stop block to take away the heat of the monomer battery cores, due to the bevel edge design of the baffle block, when wind enters the interval of the monomer battery cell, the wind is accelerated to enter the interval to take away the heat of the monomer battery cell and quickly flows out of the interval, and the phenomenon of turbulent flow caused by blocking is avoided, an air outlet and a fan are arranged at one end of the air cooling box opposite to the air inlet, so that the heat discharge of the single battery cell is accelerated, the battery is kept to operate in a normal temperature environment, thereby promote the life of monomer electricity core to avoid because of the high temperature, the condition of spontaneous combustion appears, ensure user's safety.

The utility model is not limited solely to that described in the specification and embodiments, and additional advantages and modifications will readily occur to those skilled in the art, so that the utility model is not limited to the specific details, representative apparatus, and illustrative examples shown and described herein, without departing from the spirit and scope of the general concept as defined by the appended claims and their equivalents.

Claims

1. A power battery air-cooling structure is characterized by comprising: the battery comprises a plurality of single battery cells, a plurality of battery cells and a plurality of battery cells, wherein the single battery cells are arranged side by side, and two adjacent rows of the single battery cells are arranged at intervals; the fixing frame is used for fixing the single battery cells, and a plurality of single battery cells are all arranged inside the fixing frame; the baffle blocks are used for guiding and accelerating air to flow in the intervals among the monomer electric cores, the baffle blocks are triangular, the baffle blocks are provided with a plurality of baffle blocks and are respectively arranged on one side of the fixed frame at intervals, the baffle blocks are respectively in one-to-one correspondence with the monomer electric cores, and one corner of each baffle block faces to the direction far away from the monomer electric cores; the air cooling box, the inside cavity of air cooling box, the one end of air cooling box is equipped with the air intake, fixed frame set up in the inside of air cooling box, fixed frame is equipped with one side orientation of dog the air intake, fixed frame with the air intake is corresponding, on the air cooling box with one of the air intake back of the body is served and is equipped with the air outlet, be equipped with at least one fan in the air outlet, the fan will air in the air cooling box is taken out.

2. The power battery air-cooling structure according to claim 1, wherein the fixing frame includes: one surface of the lower fixing plate is provided with a plurality of lower fixing grooves which are arranged at intervals, and the monomer battery cell is placed on the lower fixing grooves; the battery cell fixing device comprises an upper fixing plate, a lower fixing plate and a plurality of battery cells, wherein one surface of the upper fixing plate is provided with a plurality of upper fixing grooves which are arranged at intervals, the upper fixing grooves correspond to the lower fixing grooves, and the upper fixing plate covers one end, far away from the lower fixing plate, of each battery cell; the limiting frame is provided with a plurality of accommodating grooves matched with the single battery cells, and the limiting frame is located between the upper fixing plate and the lower fixing plate.

3. The power battery air-cooling structure of claim 1, wherein the height of the stopper is less than or equal to the cell, and the width of the stopper is equal to the width of the cell.

4. The power battery air-cooling structure of claim 2, wherein the stopper is fixedly connected with the limiting frame, and a spacing distance between the stopper and the single battery cell is smaller than a width of the stopper.

5. The air cooling structure for the power battery as claimed in claim 1, wherein the stopper is an isosceles triangle or an equilateral triangle.

6. The power battery air-cooling structure according to claim 1, wherein the number of the fans is five.