Battery box for new energy automobile

Abstract

The utility model relates to the technical field of battery boxes, and discloses a battery box for a new energy automobile, which comprises a bottom shell, a plurality of wire holes formed in one side of the bottom shell, a plurality of lug seats fixedly mounted on the outer side of the bottom shell, a plurality of connecting beams fixedly mounted at the bottom in the bottom shell, a top cover fixedly mounted on the bottom shell, and a plurality of second pressure relief grooves formed in the connecting beams, the lower portion of the second pressure relief groove further penetrates through the bottom shell and communicates with the external environment, an installation block is connected into the second pressure relief groove in a penetrating mode, and a sealing gasket is fixedly installed at the bottom of the installation block. A plurality of second pressure relief grooves are formed in a connecting beam, a mounting block is mounted in the second pressure relief grooves in a penetrating manner, and U-shaped side buckles on two sides of the mounting block are clamped in corresponding clamping grooves through inclined surface clamping blocks, so that the mounting block is matched with a sealing gasket to normally seal the second pressure relief grooves; and the push block is pushed by high-pressure gas and is matched with the insertion block to unlock the U-shaped side buckle, so that the mounting block is quickly pushed out of the second pressure relief groove.

Description

Technical Field

[0001] The utility model relates to the technical field of battery boxes, in particular to a battery box for new energy vehicles. Background Art

[0002] The new energy battery box is a key component of the power battery of new energy vehicles, and is also the carrier of the battery management system and related auxiliary devices. It not only serves to hold the battery module, but also undertakes multiple functions such as mechanical connection, protection, support, fixation, and heat dissipation;

[0003] In order to ensure the safety of the batteries inside, the new energy battery box has an internal cavity that is a relatively sealed structure, thereby isolating the internal batteries from the external environment. For example, the Chinese utility model patent disclosed by publication number CN209401705U: a battery box for new energy vehicles, the application includes a battery box body, a bottom partition is arranged on the outer surface of the inner bottom end of the battery box body, a positive electrode integration rod is arranged on the inner side of the battery box body near the top of the bottom partition, a box cover is arranged on one side of the battery box body, a transverse buffer plate is arranged on the outer surface of the inner bottom end of the box cover, a negative electrode integration rod is arranged on the inner outer surface of the battery box body, a buckle is arranged on the upper outer surface of the box cover, and a lower end of the inner side of the box cover near the lower end of the transverse buffer plate is arranged A foam pad is placed. After the battery is installed, the application will cause the battery to explode during use due to thermal runaway, battery aging, improper operation, external collision, circuit aging, battery puncture, internal short circuit and lithium dendrite formation, etc. The electrolyte, diaphragm and other materials inside the battery will quickly decompose and vaporize at high temperatures. At the same time, the chemical reaction inside the battery will also release a large amount of gas. These gases will quickly accumulate in the sealed battery box to form a high-pressure environment. If they are not discharged in time, the high-pressure gas will cause the battery box to swell, deform or even rupture, which will cause a larger fire or explosion, thereby increasing the degree of damage to the vehicle and the surrounding environment after the battery explodes. Utility Model Content

[0004] The purpose of the utility model is to provide a battery box for new energy vehicles, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A battery box for new energy vehicles includes a bottom shell, a plurality of wire holes are opened on one side of the bottom shell, a plurality of ear seats are fixedly installed on the outside of the bottom shell, a plurality of connecting beams are fixedly installed on the bottom of the bottom shell, a top cover is fixedly installed on the bottom shell, a plurality of second pressure relief grooves are opened in the connecting beams, the lower part of the second pressure relief groove also penetrates the bottom shell and communicates with the external environment, a mounting block is inserted and connected in the second pressure relief groove, a sealing gasket is fixedly installed on the bottom of the mounting block, U-shaped side buckles are movably connected on both sides of the mounting block, and a push block is movably connected to the upper end of the mounting block.

[0007] As a further preferred solution of the present invention, a plurality of sealing grooves are provided at the bottom of the bottom shell near the second pressure relief groove.

[0008] As a further preferred embodiment of the present invention, a plurality of first pressure relief grooves are provided on the front and rear sides of the second pressure relief groove, and a card slot is provided on the left and right sides of the second pressure relief groove;

[0009] Based on this, a second pressure relief groove and a first pressure relief groove are opened in the connecting beam, so that the pressurized gas in the cavity formed by the bottom shell and the top cover can be discharged quickly.

[0010] As a further preferred embodiment of the present invention, a rectangular through groove is provided in the mounting block, mounting grooves are provided on both sides of the mounting block, two axial holes are provided on the top of the mounting block between the two mounting grooves, and two sealing rings are fixedly installed on the sealing gasket, the sealing rings are arranged along the transverse contour of the sealing gasket, and the upper ends of the sealing rings are inserted and connected in the corresponding sealing grooves.

[0011] As a further preferred solution of the utility model, two inclined surface blocks are fixedly installed on one side of the U-shaped side buckle, a U-shaped guide seat is fixedly installed on the side of the U-shaped side buckle away from the inclined surface block, and the inclined surface block is clamped in the corresponding clamping slot;

[0012] Based on this, deformable U-shaped side buckles are set on both sides of the installation block, and the U-shaped side buckles cooperate with the inclined clamping block to enable the installation block to be inserted and installed in the second pressure relief groove, thereby achieving the function of closing the second pressure relief groove under normal conditions.

[0013] As a further preferred embodiment of the present invention, two plug-in blocks are fixedly installed at the bottom of the push block, and the bottom of the plug-in block has an inclined surface structure. The push block located between the two plug-in blocks is also fixedly installed with two plug-in shafts, and the lower ends of the plug-in shafts extend into the mounting block through corresponding shaft holes and are clamped with a retaining spring, and the plug-in shaft sleeve located between the mounting block and the push block is provided with a compression spring;

[0014] Based on this, with the help of the insert block setting at the bottom of the push block, the high-pressure gas in the top cover can be used to press the push block downward, so that the insert block is inserted into the U-shaped guide seat and the U-shaped side buckle is deformed, so that the inclined card block is disengaged from the card slot.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] In the utility model, a plurality of second pressure relief grooves are provided in the connecting beam, and a mounting block is installed in the second pressure relief groove, and the U-shaped side buckles on both sides of the mounting block are mounted in the corresponding slots by means of inclined clamping blocks, so that the mounting block cooperates with the sealing gasket to normally seal the second pressure relief groove. When the battery in the top cover explodes, the push block is pushed by the high-pressure gas and cooperates with the insert block to unlock the U-shaped side buckle, so that the mounting block can be quickly pushed out of the second pressure relief groove, so that the high-pressure gas in the top cover can be quickly discharged, thereby increasing the time for the evacuation of personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0018] Figure 2 This is a cross-sectional view of the bottom shell of the utility model;

[0019] Figure 3 for Figure 2 The enlarged view of point A in the middle;

[0020] Figure 4 It is a partial cross-sectional view of the connecting beam of the utility model;

[0021] Figure 5 It is a cross-sectional view of the installation block and the push block of the utility model;

[0022] Figure 6 It is a schematic diagram of the U-shaped side buckle structure of the utility model.

[0023] In the figure: 1, bottom shell; 2, wire hole; 3, ear seat; 4, connecting beam; 5, top cover; 6, mounting block; 7, sealing gasket; 8, U-shaped side buckle; 9, push block; 10, first pressure relief groove; 11, clamping groove; 12, sealing groove; 13, sealing ring; 14, mounting groove; 15, shaft hole; 16, inclined clamping block; 17, U-shaped guide seat; 18, plug block; 19, plug shaft; 20, compression spring; 21, second pressure relief groove. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0025] like Figure 1-Figure 6As shown, the utility model provides a battery box for new energy vehicles, including a bottom shell 1, a plurality of wire holes 2 are opened on one side of the bottom shell 1, a plurality of ear seats 3 are fixedly installed on the outside of the bottom shell 1, a plurality of connecting beams 4 are fixedly installed on the bottom of the bottom shell 1, a top cover 5 is fixedly installed on the bottom shell 1, a plurality of second pressure relief grooves 21 are opened in the connecting beam 4, the lower part of the second pressure relief groove 21 also runs through the bottom shell 1 and communicates with the external environment, the second pressure relief groove 21 is inserted and connected with a mounting block 6, a sealing gasket 7 is fixedly installed on the bottom of the mounting block 6, U-shaped side buckles 8 are movably connected on both sides of the mounting block 6, and a push block 9 is movably connected to the upper end of the mounting block 6.

[0026] like Figure 3-Figure 4 As shown, a plurality of sealing grooves 12 are opened at the bottom of the bottom shell 1 near the second pressure relief groove 21, a plurality of first pressure relief grooves 10 are opened on the front and rear sides of the second pressure relief groove 21, and a clamping groove 11 is opened on the left and right sides of the second pressure relief groove 21. The second pressure relief groove 21 and the first pressure relief groove 10 are opened in the connecting beam 4, so that the pressurized gas in the cavity formed by the bottom shell 1 and the top cover 5 can be quickly discharged.

[0027] like Figure 2-Figure 6 As shown, a rectangular through groove is provided in the mounting block 6, mounting grooves 14 are provided on both sides of the mounting block 6, two axial holes 15 are provided on the top of the mounting block 6 located between the two mounting grooves 14, two sealing rings 13 are fixedly installed on the sealing gasket 7, the sealing rings 13 are arranged along the transverse contour of the sealing gasket 7, and the upper ends of the sealing rings 13 are inserted and connected in the corresponding sealing grooves 12, two inclined surface blocks 16 are fixedly installed on one side of the U-shaped side buckle 8, a U-shaped guide seat 17 is fixedly installed on the side of the U-shaped side buckle 8 away from the inclined surface block 16, and the inclined surface block 16 is clamped in the corresponding clamping groove 11, and deformable U-shaped side buckles 8 are arranged on both sides of the mounting block 6, so that the U-shaped side buckles 8 cooperate with the inclined surface block 16 to enable the mounting block 6 to be inserted and installed. It is installed in the second pressure relief groove 21 to achieve the function of closing the second pressure relief groove 21 under normal circumstances. Two plug blocks 18 are fixedly installed at the bottom of the push block 9. The bottom of the plug block 18 has a slope structure. The push block 9 located between the two plug blocks 18 is also fixedly installed with two plug shafts 19. The lower end of the plug shaft 19 extends through the corresponding axial hole 15 to the mounting block 6 and is clamped with a retaining spring. The plug shaft 19 located between the mounting block 6 and the push block 9 is sleeved with a compression spring 20. With the help of the plug block 18 at the bottom of the push block 9, the high-pressure gas in the top cover 5 can be used to press the push block 9 downward, so that the plug block 18 is inserted into the U-shaped guide seat 17 and the U-shaped side buckle 8 is deformed, so that the inclined surface block 16 is disengaged from the slot 11.

[0028] It should be noted that the utility model is a battery box for new energy vehicles. After the bottom shell 1 is loaded with batteries for use, if the batteries in the top cover 5 explode, high-pressure gas will be generated in the cavity formed by the top cover 5 and the bottom shell 1. Since the cavity formed by the bottom shell 1 and the top cover 5 is in a relatively sealed environment, the high-pressure gas in the top cover 5 will enter the second pressure relief groove 21 through the multiple first pressure relief grooves 10 on both sides of the connecting beam 4, thereby pressing the push block 9 downward. Therefore, the push block 9 will synchronously drive the two plug blocks 18 to move downward when it is pressed downward. Therefore, the two plug blocks 18 are respectively inserted into the corresponding U-shaped guide using the inclined surfaces at the bottom. The U-shaped guide seat 17 is in the inner part, so that when the insert block 18 presses down on the U-shaped guide seat 17, the U-shaped guide seat 17 drives the U-shaped side buckle 8 to deform and bend to one side in the installation groove 14. Therefore, the two inclined surface blocks 16 on the other side of the U-shaped side buckle 8 are disengaged from the corresponding card groove 11, and then the thrust of the push block 9 by the high-pressure gas in the top cover 5 is continued to be used to push the installation block 6 out of the second pressure relief groove 21, so as to realize the connection between the inner cavity of the top cover 5 and the external environment by means of the first pressure relief groove 10 and the second pressure relief groove 21, so as to realize the pressure relief treatment of the high-pressure gas in the top cover 5, prevent the entire top cover 5 from bursting rapidly due to the high pressure, and provide time for the evacuation of personnel.

[0029] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A battery box for new energy vehicles, characterized in that: The invention comprises a bottom shell (1), a plurality of wire holes (2) are provided on one side of the bottom shell (1), a plurality of ear seats (3) are fixedly installed on the outer side of the bottom shell (1), a plurality of connecting beams (4) are fixedly installed on the bottom of the bottom shell (1), a top cover (5) is fixedly installed on the bottom shell (1), a plurality of second pressure relief grooves (21) are provided in the connecting beams (4), the lower part of the second pressure relief grooves (21) also penetrates the bottom shell (1) and communicates with the external environment, a mounting block (6) is inserted and connected in the second pressure relief groove (21), a sealing gasket (7) is fixedly installed on the bottom of the mounting block (6), both sides of the mounting block (6) are movably connected with U-shaped side buckles (8), and the upper end of the mounting block (6) is movably connected with a push block (9).

2. A battery box for new energy vehicles according to claim 1, characterized in that: A plurality of sealing grooves (12) are provided at the bottom of the bottom shell (1) near the second pressure relief groove (21).

3. A battery box for new energy vehicles according to claim 2, characterized in that: A plurality of first pressure relief grooves (10) are provided on the front and rear sides of the second pressure relief groove (21), and a clamping groove (11) is provided on the left and right sides of the second pressure relief groove (21).

4. A battery box for new energy vehicles according to claim 3, characterized in that: A rectangular through groove is provided in the mounting block (6), mounting grooves (14) are provided on both sides of the mounting block (6), two axial holes (15) are provided on the top of the mounting block (6) between the two mounting grooves (14), and two sealing rings (13) are fixedly mounted on the sealing gasket (7), the sealing rings (13) are arranged along the transverse profile of the sealing gasket (7), and the upper ends of the sealing rings (13) are inserted and connected in the corresponding sealing grooves (12).

5. A battery box for new energy vehicles according to claim 4, characterized in that: Two inclined surface blocks (16) are fixedly mounted on one side of the U-shaped side buckle (8), a U-shaped guide seat (17) is fixedly mounted on the side of the U-shaped side buckle (8) facing away from the inclined surface blocks (16), and the inclined surface blocks (16) are clamped in corresponding clamping slots (11).

6. A battery box for new energy vehicles according to claim 5, characterized in that: Two plug blocks (18) are fixedly mounted on the bottom of the push block (9), and the bottom of the plug block (18) has an inclined surface structure. The push block (9) located between the two plug blocks (18) is also fixedly mounted with two plug shafts (19), and the lower ends of the plug shafts (19) extend through corresponding shaft holes (15) into the mounting block (6) and are clamped with retaining springs. The plug shafts (19) located between the mounting block (6) and the push block (9) are sleeved with compression springs (20).

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