CN212461898U

CN212461898U - Battery box

Info

Publication number: CN212461898U
Application number: CN202021551231.9U
Authority: CN
Inventors: 章文龙; 司宗生; 张郁茹; 何帅强; 孙光忠
Original assignee: Camel Group Wuhan New Energy Technology Co ltd
Current assignee: Camel Group New Energy Battery Co Ltd
Priority date: 2020-07-31
Filing date: 2020-07-31
Publication date: 2021-02-02
Anticipated expiration: 2030-07-31

Abstract

A battery box body includes a battery tank body and an upper cover. Two pairs of symmetrical long holes are arranged on the left and right side walls of the battery tank body, and an air duct extending along the length direction of the battery tank body is respectively inserted into each pair of long holes. , the air duct is a hollow structure with openings at both ends. The two ends of the air duct protrude from the left and right side walls of the battery tank body and are respectively fitted with a silicone rubber gasket. In order to gradually reduce the tapered hole from the side close to the battery tank body to the side away from the battery tank body, the size of the tapered hole near the battery tank body matches the air duct; the air ducts outside the two silicone rubber gaskets on the right side are respectively fitted with The outer air duct pressure plate 1, the air duct outside the two silicon rubber gaskets on the left side is covered with the outer air duct pressure plate 2. The middle of the outer air duct pressure plate 2 protrudes outward to form a hollow cavity. The air outlet communicates with the cavity body, the air outlet is connected with an air duct, and the other end of the air extraction duct is connected with the air exhaust fan, so as to improve the safety performance and service life of the battery.

Description

Battery box

Technical Field

The utility model relates to a battery system technical field of HEV motorcycle type, in particular to battery box.

Background

In recent years, the automobile industry in China is rapidly developed, and the nation sets out a plurality of laws and regulations related to automobile energy conservation and clearly stipulates the target limit that the average oil consumption of a passenger car is reduced to 5L/100KM in 2020, so that the oil-electricity hybrid technology becomes one of effective means for reducing the oil consumption of a host factory.

At present, a cooling fan is additionally arranged at one end of a battery pack, and a ventilation hole is reserved at the other end of the battery pack, so that air flows between gaps of a battery pack in an accelerated manner to take away heat generated during operation of a battery core. The external air of the structure can be directly contacted with the battery pack, and the moisture and impurities contained in the air can be contacted with the battery module for a long time to reduce the insulation performance of the battery, so that the use safety of the battery is influenced.

Disclosure of Invention

An object of the utility model is to overcome the aforesaid not enough, provide a battery box, when having guaranteed the radiating efficiency of forced air cooling system, improve the security performance and the life of battery.

The technical scheme of the utility model is that: a battery box body comprises a battery box body and an upper cover, wherein two pairs of symmetrical long holes are formed in the left side wall and the right side wall of the battery box body, an air channel extending along the length direction of the battery box body is respectively inserted into each pair of long holes, the distance between the two air channels after insertion is the same as the width of a battery cell module of a battery, the air channel is of a hollow structure with two open ends, a plurality of fins are arranged inside the air channel, two ends of the air channel extend out of the left side wall and the right side wall of the battery box body and are respectively sleeved with a silicon rubber gasket, a boss protrudes outwards from the middle part of the silicon rubber gasket, the middle part of the boss is a conical hole gradually reduced from the side close to the battery; the outer wind channel of two silicon rubber packing rings on the right side is respectively sleeved with an outer wind channel pressing plate I, the outer wind channel of two silicon rubber packing rings on the left side is covered with an outer wind channel pressing plate II, the middle part of the outer wind channel pressing plate II protrudes outwards to form a cavity body, one side wall of the outer wind channel pressing plate II is provided with a wind port communicated with the cavity body, the wind port is connected with a wind pipe communicated with a wind suction pipeline, and the other end of the wind suction pipeline is communicated with a fan.

The air duct is enclosed by antetheca, back wall, upper wall, downside, and a plurality of fins are along battery jar body length direction side by side the equipartition in antetheca and/or back wall.

And a supporting plate is arranged between the front wall and the rear wall of the air duct and is parallel to the upper wall and the lower wall.

The outer air duct pressing plate I is provided with a plurality of bolt holes I corresponding to the corresponding silicon rubber gaskets and the battery cell body, and the silicon rubber gaskets corresponding to the right side of the outer air duct pressing plate I and the right side of the battery cell body are pressed and installed on the right side of the battery cell body through a plurality of bolts; the periphery of the outer air duct pressing plate II is provided with a plurality of bolt holes II in opposite positions with the two silicone rubber gaskets on the left side and the battery cell body, and the outer air duct pressing plate II and the two silicone rubber gaskets on the left side are pressed on the left side of the battery cell body through a plurality of bolts.

And a sealing strip is arranged between the battery groove body and the upper cover.

And a plurality of bolt holes III are formed in the corresponding positions of the battery groove body, the upper cover and the sealing strip, and the upper cover and the sealing strip are pressed on the battery groove body through a plurality of bolts.

And the upper end of the upper cover is provided with a plurality of reinforcing ribs which are uniformly distributed side by side along the width direction of the battery groove body.

The utility model has the advantages that: the utility model adopts the air duct, which can not make the outside air directly contact with the battery pack while ensuring the heat dissipation efficiency, and can avoid the moisture and impurities contained in the air from contacting with the battery module for a long time, thereby improving the insulation performance and the sealing performance of the battery and further improving the safety of the battery; the air duct and the battery groove body are designed separately, the traditional design that the air duct and the battery groove body are directly integrated in the battery groove body is changed, and the separated design reduces the difficulty of the production process and reduces the manufacturing cost.

Drawings

Fig. 1 is a first schematic structural diagram of the present invention;

FIG. 2 is a second schematic structural view of the present invention;

FIG. 3 is an exploded view of the present invention;

FIG. 4 is a schematic view of the inside of the battery cell body according to the present invention;

FIG. 5 is a schematic structural view of the silicone rubber gasket of the present invention;

fig. 6 is a schematic structural diagram of the first external air duct adapter plate of the present invention;

fig. 7 is a schematic structural view of the air duct of the present invention;

in the figure: 1. the solar cell comprises a cell body, 2 air ducts, 3 silicon rubber gaskets, 4 outer air duct adapter plates I and 5, outer air duct adapter plates II and 6, an upper cover, 7 and sealing strips.

Detailed Description

In fig. 1, fig. 2, fig. 3, fig. 4, two pairs of symmetrical slot holes are established to battery cell body 1 left and right both sides wall, and every is inserted a wind channel 2 that extends along battery cell body 1 length direction in the slot hole respectively, and wind channel 2's main function is through heat conduction gasket and module heat radiation structure contact when passing the box to take away the heat through the forced air cooling. After the air duct 2 is inserted, the distance between the two air ducts 2 is the same as the width of a battery cell module of a battery, two ends of each air duct 2 extend out of the left side wall and the right side wall of the battery cell body 1 and are respectively sleeved with a silicon rubber gasket 3, an outer air duct pressing plate I4 is respectively sleeved on the air duct 2 outside the two silicon rubber gaskets 3 on the right side, an outer air duct pressing plate II 5 is covered on the air duct 2 outside the two silicon rubber gaskets 3 on the left side, and the outer air duct pressing plate I4 and the outer air duct pressing plate II 5 are mainly used for pressing the silicon rubber gaskets 3 tightly to ensure; the middle part of the outer air duct pressing plate II 5 protrudes outwards to form a cavity body, one side wall of the outer air duct pressing plate II 5 is provided with an air port communicated with the cavity body, the air port is connected with an air pipe communicated with an air suction pipeline, the other end of the air suction pipeline is communicated with an air exhauster, the outer air duct pressing plate II 5 exhausts air to the two sets of air ducts 2 simultaneously, and the material structure of the whole vehicle and the box body in butt joint is simplified.

A plurality of bolt holes I are formed in the positions, corresponding to the silicone rubber gasket 3 and the battery cell body 1, of the outer air duct pressing plate I4, and the silicone rubber gasket 3 corresponding to the right side of the outer air duct pressing plate I4 is pressed on the right side of the battery cell body 1 through a plurality of bolts; the periphery of the outer air duct pressing plate II 5 is provided with a plurality of bolt holes II corresponding to the two silicon rubber gaskets 3 on the left side and the battery cell body 1, and the outer air duct pressing plate II 5 and the two silicon rubber gaskets 3 on the left side are pressed on the left side of the battery cell body 1 through a plurality of bolts.

Be equipped with sealing strip 7 between cell body 1 and the upper cover 6, the main effect of sealing strip 7 is the leakproofness of guaranteeing between cell body 1 and the upper cover 6, and cell body 1, upper cover 6, sealing strip 7 correspond the position and establish a plurality of bolt holes three to on with upper cover 6, sealing strip 7 pressure equipment and cell body 1 through a plurality of bolts.

The upper end of the upper cover 6 is provided with a plurality of reinforcing ribs which are uniformly distributed side by side along the width direction of the battery groove body 1.

In fig. 5, a boss protrudes outwards from the middle of the silicone rubber gasket 3, the middle of the boss is a conical hole which is gradually reduced from the side close to the battery groove body 1 to the side far away from the battery groove body 1, and the size of the conical hole at the side close to the battery groove body 1 is matched with the air duct 2; the main function is that when the first outer air duct pressing plate 4 and the second outer air duct pressing plate 5 are fixed on the battery groove body 1, the gap between the air duct 2 and the battery groove body 1 is sealed, so that the air duct 2 can be fixed, and the air tightness inside the box body can be guaranteed.

Fig. 6 is a schematic structural diagram of the outer air duct pressing plate-4.

In fig. 7, the air duct 2 is a hollow structure with two open ends surrounded by a front wall, a rear wall, an upper wall and a lower side, and a plurality of fins are arranged inside the air duct and are uniformly distributed in the front wall and/or the rear wall in parallel along the length direction of the battery cell body 1; a supporting plate is arranged between the front wall and the rear wall of the air duct 2, and the supporting plate is parallel to the upper wall and the lower wall. The design structure of the air duct 2 is simpler, the processing period is short, and the fin structure can increase the heat dissipation surface area.

The assembly process of the air duct 2 is as follows:

1) two silicon rubber gaskets 3 are respectively sleeved at one ends of the two air ducts 2, and the silicon rubber gaskets 3 and the air ducts 2 are in interference fit;

2) then, after the air duct 2 treated in the step 1) passes through the battery cell body 1, another two silicon rubber gaskets 3 are sleeved at the other ends of the two air ducts 2;

3) and finally, fixing the outer air duct pressing plate I4 and the outer air duct pressing plate II 5 on the battery groove body 1 through a plurality of bolts.

To sum up, the utility model discloses can guarantee that the leakproofness can guarantee again to use the forced air cooling scheme to be impurity in the air can not cause the harm to battery package internal element. The box body is convenient to install and operate, short in forming period and high in operability.

Claims

1. A battery case, characterized in that it comprises a battery tank body (1), an upper cover (6), and two pairs of symmetrical long holes are arranged on the left and right side walls of the battery tank body (1), and each pair of long holes An air duct (2) extending along the length direction of the battery tank body (1) is respectively inserted into it. After insertion, the distance between the two air ducts (2) is the same as the width of the battery cell module. The air ducts (2) are at both ends. It has a hollow structure with an open part, and a plurality of fins are arranged inside. The two ends of the air duct (2) protrude from the battery tank body (1). The left and right side walls are respectively covered with a silicone rubber gasket (3), and the silicone rubber gasket (3 ) There is a boss protruding from the middle of the boss. The middle of the boss is a tapered hole that gradually decreases from the side close to the battery tank body (1) to the side away from the battery tank body (1), and the cone hole is close to the battery tank body (1) side. The size of the air duct matches the air duct (2); the air duct (2) outside the two silicone rubber gaskets (3) on the right side is fitted with an outer air duct pressure plate (4), and the two silicone rubber gaskets (3) on the left ) outside the air duct (2) is covered with two outer air duct pressure plates (5), the middle of the outer air duct pressure plate two (5) protrudes outward to form a hollow cavity, and one side wall of the outer air duct pressure plate two (5) is provided with There is a tuyere that communicates with the cavity body, the tuyere is connected with an air duct for communicating with the air extraction duct, and the other end of the air extraction duct is communicated with the air extraction fan.

2 . The battery box according to claim 1 , wherein the air duct ( 2 ) is surrounded by a front wall, a rear wall, an upper wall and a lower side, and a plurality of fins are arranged along the battery tank body ( 2 . 1) The length direction is evenly distributed in the front wall and/or the rear wall.

3 . The battery box according to claim 2 , wherein a support plate is provided between the front wall and the rear wall of the air duct ( 2 ), and the support plate is parallel to the upper and lower walls. 4 .

4 . The battery box according to claim 1 , wherein a plurality of positions of the outer air duct pressure plate ( 4 ), the corresponding silicone rubber gasket ( 3 ) and the battery tank body ( 1 ) are arranged relative to each other. 5 . Bolt hole 1, and press-fit the outer air duct pressure plate 1 (4) and the corresponding silicone rubber gasket (3) on the right side on the right side of the battery tank body (1) through multiple bolts; the outer air duct pressure plate 2 (5) The outer periphery Multiple bolt holes (2) are provided at positions opposite to the left two silicone rubber washers (3) and the battery tank body (1). 3) Press-fit on the left side of the battery tank body (1).

5 . The battery case according to claim 1 , wherein a sealing strip ( 7 ) is arranged between the battery case ( 1 ) and the upper cover ( 6 ). 6 .

6 . The battery box according to claim 5 , characterized in that: the battery tank body ( 1 ), the upper cover ( 6 ), and the sealing strip ( 7 ) are provided with a plurality of bolt holes three corresponding to A plurality of bolts press-fit the upper cover (6) and the sealing strip (7) to the battery tank body (1).

7 . The battery box according to claim 1 , wherein the upper end of the upper cover ( 6 ) is provided with a plurality of reinforcements that are evenly distributed side by side along the width direction of the battery box ( 1 ). 8 . tendons.