CN217848978U - High-voltage box fixing device of lithium ion power battery system - Google Patents

Abstract

The utility model discloses a high-voltage box fixing device of a lithium ion power battery system, which relates to the technical field of new energy, wherein a plurality of positioning holes are arranged between the side edge of an insulating substrate and the side edge of a box body, a fixing framework comprises a plurality of limiting holes, and the positioning holes are aligned with the limiting holes; the one end that fixed box is close to spacing post is provided with the limiting plate, and the one side that fixed box was kept away from to the limiting plate is provided with the elastic gasket, and the one end that fixed box was kept away from to spacing post is provided with the fixed slot, is provided with first spring between first fixed column and the stop device, is provided with the second spring between second fixed column and the stop device. Spacing post is inserting locating hole and spacing hole in-process among this technical scheme, and first spacing post and the spacing post of second can be compressed in the fixed slot, and after the fixed slot passed locating hole and spacing hole, first spacing post and the spacing post of second were strutted by first spring and second spring for the fixed column can't be taken out, thereby has realized the function that fixed box can install fast.

Description

High-voltage box fixing device of lithium ion power battery system

Technical Field

The utility model relates to a new forms of energy technical field, specifically speaking relates to a lithium ion power battery system high pressure box fixing device.

Background

Nowadays, new energy automobiles are more and more emphasized, and people pay more and more attention to the safety of a heart-power battery system of the new energy automobiles in order to improve the reliability and the safety of the automobiles. The high-voltage box is also called a brain of the power battery system and is a core component of the power battery system, and the high-voltage box has the function of providing support of information instructions for charging and discharging of the power battery.

The existing high-voltage box is generally directly installed on a framework of a vehicle through bolts, but the high-voltage box is in direct contact with a vehicle body in such a way. However, in a narrow installation space, an assembler needs to expend a great deal of effort to fix the bolts, which greatly increases the time and cost required for manufacturing.

Disclosure of Invention

To above defect, the utility model aims at providing a lithium ion power battery system high pressure box fixing device aims at solving the problem that high pressure box is difficult to quick installation among the prior art.

In order to solve the technical problem, the technical scheme of the utility model is that:

a high-voltage box fixing device for a lithium ion power battery system comprises a fixing box and a sealing cover matched with the fixing box, wherein the fixing box comprises a box body and an insulating substrate, the box body is positioned on one surface, facing the sealing cover, of the insulating substrate, the outer contour size of the insulating substrate is larger than that of the box body, a plurality of positioning holes are formed between the side edge of the insulating substrate and the side edge of the box body, one end of each positioning hole is connected with one surface, facing the fixing box, of the insulating substrate, and the other end of each positioning hole is connected with one surface, far away from the fixing box, of the insulating substrate; the fixing framework comprises a plurality of limiting holes, the positioning holes are aligned with the limiting holes, and the extending direction of the positioning holes is the same as that of the limiting holes; the limiting device is characterized by further comprising a limiting column, the limiting column penetrates through a positioning hole and a limiting hole, one end, close to the fixing box, of the limiting column is provided with a limiting plate, one face, far away from the fixing box, of the limiting plate is provided with an elastic gasket, one end, far away from the fixing box, of the limiting column is provided with a fixing groove, the extending direction of the fixing groove is the same as that of the limiting column, a first fixing column, a second fixing column and a limiting device are arranged in the fixing groove, the first fixing column and the second fixing column are symmetrical about the limiting device, one end, far away from the limiting plate, of the first fixing column is provided with a first shaft body, the first fixing column is rotatably connected with the first shaft body, one end, far away from the limiting plate, of the second fixing column is provided with a second shaft body, the second fixing column is rotatably connected with the second shaft body, a first spring is arranged between the first fixing column and the limiting device, and a second spring is arranged between the second fixing column and the limiting device.

The fixing groove is internally provided with a first limiting shaft and a second limiting shaft, the first limiting shaft is located on one side, away from the limiting device, of the first fixing column, the second limiting shaft is located on one side, away from the limiting device, of the second fixing column, and the first limiting shaft and the second limiting shaft are both located on one side, away from the limiting plate, of the limiting device.

The fixing framework is arched, fixing holes are formed in two ends of the arched fixing framework, and the fixing holes are provided with internal threads.

The fixed skeleton of second is bow-shaped, the fixed skeleton of second is located the one side that the box body was kept away from to insulating substrate, the fixed skeleton of second includes the spacing hole of a plurality of seconds, the extending direction in the spacing hole of second is the same with the extending direction in spacing hole, the both ends of the fixed skeleton of second all are provided with the second fixed orifices, the extending direction in second fixed orifices is the same with the extending direction in fixed orifices, the spacing hole of second sets up with the locating hole cooperation, fixed skeleton sets up about the box body symmetry with the fixed skeleton of second, fixed skeleton is the same with the extending direction in the fixed skeleton of second.

The device comprises a first fixing frame, a second fixing frame, a first cross arm, a second cross arm and a connecting rod, wherein the first cross arm and the second cross arm are further included, one end of the first cross arm is connected with one end of the fixing frame, the other end of the first cross arm extends towards one end of the second fixing frame, one end of the second cross arm is connected with one end, far away from the first cross arm, of the fixing frame, the other end of the second cross arm extends towards one end, far away from the first cross arm, of the second fixing frame, and the extending directions of the first cross arm and the second cross arm are the same.

The insulating substrate comprises a through hole, and the through hole is formed in the insulating substrate and extends towards one surface of the box body from one surface of the insulating substrate away from the box body.

The box body is characterized by further comprising a plurality of L-shaped limiting blocks, wherein the limiting blocks are located on one surface, facing the box body, of the fixed framework.

And one surface of the limiting block, which faces the insulating substrate, is provided with an insulating elastic buffer material.

The handle is positioned on one surface, far away from the fixed box, of the sealing cover.

After the technical scheme is adopted, the beneficial effects of the utility model are that:

the fixing framework in the technical scheme has a buffering function, so that vibration is transmitted to the high-voltage box after being buffered; the fixed column is inserting locating hole and spacing hole in-process, and first spacing post and the spacing post of second can be compressed in the fixed slot, and after the fixed slot passed locating hole and spacing hole, first spacing post and the spacing post of second were strutted by first spring and second spring for the fixed column can't be taken out, thereby has realized the function that the fixed box can install fast.

Drawings

FIG. 1 is a block diagram of a fixture;

FIG. 2 is a cross-sectional view of the anchor armature;

FIG. 3 is a cross-sectional view of a spacing post;

FIG. 4 is a side view of a restraint post;

FIG. 5 is another block diagram of the fixing frame;

fig. 6 is a structural diagram of a stopper.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

The position that involves in this specification all uses the utility model relates to a position of lithium ion power battery system high pressure box fixing device during normal operating is the standard, does not restrict its storage and position when transporting, only represents relative position relation, does not represent absolute position relation.

As shown in fig. 1 to 4, a high-voltage box fixing device for a lithium ion power battery system comprises a fixing box 101 and a sealing cover 102 matched with the fixing box 101, wherein the fixing box 101 comprises a box body 103 and an insulating base plate 104, the box body 103 is positioned on one surface, facing the sealing cover 102, of the insulating base plate 104, the outer contour size of the insulating base plate 104 is larger than that of the box body 103, a plurality of positioning holes 105 are formed between the side edge of the insulating base plate 104 and the side edge of the box body 103, one end of each positioning hole 105 is connected with one surface, facing the box body 103, of the insulating base plate 104, and the other end of each positioning hole 105 is connected with one surface, far away from the box body 103, of the insulating base plate 104; the fixing frame 107 comprises a plurality of limiting holes 108, the positioning holes 105 are aligned with the limiting holes 108, and the extending direction of the positioning holes 105 is the same as that of the limiting holes 108; the fixing device further comprises a limiting column 106, the limiting column 106 penetrates through the positioning hole 105 and the limiting hole 108, a limiting plate 106a is arranged at one end, close to the fixing box 101, of the limiting column 106, an elastic gasket 106b is arranged on one surface, far away from the fixing box 101, of the limiting plate 106, a fixing groove 106c is arranged at one end, far away from the fixing box 101, of the limiting column 106, the extending direction of the fixing groove 106c is the same as the extending direction of the limiting column 106, a first fixing column 106d, a second fixing column 106e and a limiting device 106f are arranged in the fixing groove 106c, the first fixing column 106d and the second fixing column 106e are symmetrical with respect to the limiting device 106f, a first shaft 106g is arranged at one end, far away from the limiting plate 106a, of the first fixing column 106d is rotatably connected with the first shaft 106g, a second shaft 106h is arranged at one end, far away from the limiting plate 106a, of the second fixing column 106e, is provided with a second shaft 106h, the second fixing column 106e is rotatably connected with the second shaft 106h, a first spring 106i is arranged between the first fixing column 106d and the limiting device 106f, and a second spring 106j is arranged between the second fixing column 106 f. In this embodiment, since most of the inside of the case 103 is electronic components, the insulating substrate 104 is selected to support the case 103 in order to prevent short circuit. In consideration of cost, the case 103 and the insulating substrate 104 are integrally formed, and both are made of insulating high-temperature resistant material. Before installing the fixing box 101, we need to fix the fixing frame 107 to the frame of the vehicle in advance in order to facilitate subsequent replacement and repair. In this embodiment, the first spring 106i applies a pushing force to the first fixing post 106d, and the second spring 106j applies a pushing force to the second fixing post 106e, so that the first fixing post 106d and the second fixing post 106e rotate toward the outside of the fixing slot 106 c. Therefore, when the fixing posts 106 pass through the positioning holes 105 and the limiting holes 108, the first fixing posts 106d and the second fixing posts 106e in the fixing slots 106c are blocked by the positioning holes 105 and the limiting holes 108 and cannot rotate to the outside of the fixing slots 106c, and when the fixing slots 106c pass through the positioning holes 105 and the limiting holes 108, the first fixing posts 106d and the second fixing posts 106e are partially located outside the fixing slots 106c, so that the fixing box 101 cannot be lifted out. In order to prevent the fixing posts 106 from directly passing through the positioning holes 105 and the fixing holes 108, a limiting plate 106a is disposed at one end of the fixing posts 106 close to the fixing box 101, and the outer diameter of the limiting plate 106a needs to be larger than the diameter of the positioning holes 105. In order to avoid hard contact between the stopper plate 106a and the insulating substrate 104, an elastic pad 106b is disposed on a surface of the stopper plate 106a away from the case 103.

In this embodiment, the elastic pad 106 is preferably a rubber pad to reduce cost.

As shown in fig. 2, in the present embodiment, a first limiting shaft 106k and a second limiting shaft 106l are further disposed in the fixing groove 106c, the first limiting shaft 106k is located on a side of the first fixing column 106d away from the limiting device 106f, the second limiting shaft 106l is located on a side of the second fixing column 106e away from the limiting device 106f, and the first limiting shaft 106d and the second limiting shaft 106l are both located on a side of the limiting device 106f away from the limiting plate 106 a. In order to avoid that the first fixing post 106d and the second fixing post 106e cannot limit the position of the fixing box 101 any more due to the failure of the first spring 106i or the second spring 106j, the first limiting shaft 106k and the second limiting shaft 106l are introduced in the present embodiment. The first limiting shaft 106k needs to be disposed on a side of the first fixing post 106d away from the limiting device 106f in order to block the first fixing post 106d. The first limiting shaft 106k is disposed on a side of the limiting device 106f away from the limiting plate 106a, so as to prevent the first limiting shaft 106k from blocking the first fixing post 106d inside the fixing groove 106 c.

In this embodiment, the fixing frame 107 is preferably in an arc shape, and fixing holes 110 are respectively disposed at two ends of the arc fixing frame 107, and the fixing holes 110 are provided with internal threads. Because the arc-shaped fixed framework 107 is partially suspended, the arc-shaped fixed framework has a certain shock absorption effect, so that the shock from the vehicle can be well eliminated, and the service life is prolonged. The fixing holes 110 enable the fixing framework 107 to be fixed on the frame in a face-up or face-down mode, and therefore multiple mounting modes are achieved. And in order to guarantee the fastness, preferably, still include the fixed skeleton 111 of second, the fixed skeleton 111 of second is bow-shaped, the fixed skeleton 111 of second is located the one side that box body 103 was kept away from to insulating substrate 104, the fixed skeleton 111 of second includes the spacing hole 112 of a plurality of seconds, the both ends of the fixed skeleton 111 of second all are provided with second fixed orifices 113, the spacing hole 112 of second sets up with the cooperation of locating hole 105, fixed skeleton 107 sets up with the fixed skeleton 111 of second about box body 103 symmetry, fixed skeleton 107 is the same with the extending direction of the fixed skeleton 111 of second. The second fixing frame 111 is the same as the fixing frame 110, the box body 103 is also fixed on the second fixing frame 111, and the position-limiting column 106 passes through the positioning hole 105 and the second position-limiting hole 112 and fixes the box body 103 on the second fixing frame 111. The extending direction of the second limiting hole 112 is the same as the extending direction of the limiting hole 108, and the extending direction of the second fixing hole 113 is the same as the extending direction of the fixing hole 110. In order to ensure the stability of the box 103, the second fixing frame 111 and the fixing frame 110 are located at two sides of the box 103, and are symmetrical with respect to the box 103. As shown in fig. 5, in order to avoid the problem of lost or missing when the fixed framework 110 and the second fixed framework 111 are mounted separately, it is preferable that the device further comprises a first cross arm 114 and a second cross arm 115, wherein one end of the first cross arm 114 is connected to one end of the fixed framework 107, the other end of the first cross arm 114 extends toward one end of the second fixed framework 111, one end of the second cross arm 115 is connected to one end of the fixed framework 107 far from the first cross arm 114, the other end of the second cross arm 115 extends toward one end of the second fixed framework 111 far from the first cross arm 114, and the extending directions of the first cross arm 114 and the second cross arm 115 are the same. In this case, the first arm 114, the second arm 115, the fixing frame 107, and the second fixing frame 111 are integrally connected, so that the mounting parts are omitted, and the structural rigidity is enhanced.

For convenience of connection of the circuit, it is preferable that the insulating substrate 104 includes a through hole 116, and the through hole 116 extends from a surface of the insulating substrate 104 away from the box body 103 to a surface of the insulating substrate 104 facing the box body 103. In this embodiment, the fixing frame 107 has an arc shape, i.e. the fixing frame may have a convex structure, which is an excellent circuit placing position. In order to facilitate the connection of the circuit to the electronic components inside the casing 103, a through hole 116 is provided at the bottom of the casing 103, i.e., on the insulating substrate 104. The circuit connected to the battery module reaches the bottom of the fixing case 101 from the position between the protrusion and the frame, and then the circuit enters the fixing case 101 through the stopper hole 116, thereby facilitating the connection of the energized circuit to the internal components of the case body 103.

As shown in fig. 6, in order to facilitate the fixing of the fixing box 101 to the fixing frame 107, it is preferable that a plurality of L-shaped stoppers 117 are further included, where the stoppers 117 are located on one surface of the fixing frame 107 facing the box body 103, and the stoppers are disposed around the insulating substrate 104. When the operator assembles the fixed box 101 to the fixed frame 107, the L-shaped stopper 117 may directly limit the position of the insulating substrate 104, and then the assembly of the fixed box 101 may be completed at the assembly limit post 106. In order to reduce the vibration of the fixed box 101, an insulating elastic buffer material is disposed on a surface of the stopper 117 facing the insulating substrate 104.

In this embodiment, in order to facilitate the taking out and mounting of the fixed box 101, it is preferable that a handle is further included, and the handle 118 is located on a surface of the sealing cover 102 away from the fixed box 101.

In order to ensure the shock resistance of the fixed framework 107, the fixed framework 107 is cast by a corrosion-resistant material with strong elastic capacity.

The present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes without creative labor from the above conception, and all the changes fall within the protection scope of the present invention.

Claims (9)

1. The utility model provides a lithium ion power battery system high pressure box fixing device, including fixed box and with the sealed lid that fixed box cooperation set up, its characterized in that: the fixing box comprises a box body and an insulating substrate, wherein the box body is positioned on one surface, facing the sealing cover, of the insulating substrate, the outer contour size of the insulating substrate is larger than that of the box body, a plurality of positioning holes are formed between the side edge of the insulating substrate and the side edge of the box body, one end of each positioning hole is connected with one surface, facing the box body, of the insulating substrate, and the other end of each positioning hole is connected with one surface, far away from the box body, of the insulating substrate; the fixing framework comprises a plurality of limiting holes, the positioning holes are aligned with the limiting holes, and the extending direction of the positioning holes is the same as that of the limiting holes; the limiting device is characterized by further comprising a limiting column, the limiting column penetrates through a positioning hole and a limiting hole, one end, close to the fixing box, of the limiting column is provided with a limiting plate, one face, far away from the fixing box, of the limiting plate is provided with an elastic gasket, one end, far away from the fixing box, of the limiting column is provided with a fixing groove, the extending direction of the fixing groove is the same as that of the limiting column, a first fixing column, a second fixing column and a limiting device are arranged in the fixing groove, the first fixing column and the second fixing column are symmetrical about the limiting device, one end, far away from the limiting plate, of the first fixing column is provided with a first shaft body, the first fixing column is rotatably connected with the first shaft body, one end, far away from the limiting plate, of the second fixing column is provided with a second shaft body, the second fixing column is rotatably connected with the second shaft body, a first spring is arranged between the first fixing column and the limiting device, and a second spring is arranged between the second fixing column and the limiting device.

2. The high-voltage box fixing device of the lithium ion power battery system according to claim 1, characterized in that: still be provided with first spacing axle and the spacing axle of second in the fixed slot, first spacing hub bit is in the one side that stop device was kept away from to first fixed column, the spacing hub bit of second is in the one side that stop device was kept away from to the second fixed column, first spacing axle and the spacing axle of second all are located one side that stop device kept away from the limiting plate.

3. The high-voltage box fixing device of the lithium ion power battery system according to claim 1, characterized in that: the fixed framework is in an arc shape, fixing holes are formed in two ends of the arc-shaped fixed framework, and the fixing holes are provided with internal threads.

4. The high-voltage box fixing device of the lithium ion power battery system according to claim 3, characterized in that: still include the fixed skeleton of second, the fixed skeleton of second is bow-shaped, the fixed skeleton of second is located the one side that insulating substrate kept away from the box body, the fixed skeleton of second includes the spacing hole of a plurality of seconds, the extending direction in the spacing hole of second is the same with the extending direction in spacing hole, the both ends of the fixed skeleton of second all are provided with the second fixed orifices, the extending direction of second fixed orifices is the same with the extending direction of fixed orifices, the spacing hole of second sets up with the locating hole cooperation, fixed skeleton sets up about the box body symmetry with the fixed skeleton of second, fixed skeleton is the same with the extending direction of the fixed skeleton of second.

5. The high-voltage box fixing device of the lithium ion power battery system according to claim 4, characterized in that: the fixing frame is characterized by further comprising a first cross arm and a second cross arm, one end of the first cross arm is connected with one end of the fixing frame, the other end of the first cross arm extends towards one end of the second fixing frame, one end of the second cross arm is connected with one end, far away from the first cross arm, of the fixing frame, the other end of the second cross arm extends towards one end, far away from the first cross arm, of the second fixing frame, and the extending directions of the first cross arm and the second cross arm are the same.

6. The high-voltage box fixing device of the lithium ion power battery system according to claim 1, characterized in that: the insulating substrate includes the through hole, the through hole is kept away from one side of box body by insulating substrate and extends towards the one side of box body to insulating substrate.

7. The high-voltage box fixing device of the lithium ion power battery system according to claim 1, characterized in that: still include a plurality of L shape stoppers, the stopper is located the one side of fixed skeleton towards the box body.

8. The fixing device for the high-voltage box of the lithium ion power battery system according to claim 7, characterized in that: and one surface of the limiting block facing the insulating substrate is provided with an insulating elastic buffer material.

9. The high-voltage box fixing device of the lithium ion power battery system according to claim 1, characterized in that: still include the handle, the handle is located the sealed one side of keeping away from fixed box of lid.

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