CN218123674U - Anti-creeping battery box - Google Patents

Abstract

The utility model discloses a battery box of anticreep, including the battery body and with the roof beam that separates of battery body butt, separate the roof beam and be provided with the breach, and the breach exposes the higher authority department of battery body, through the creepage distance between the higher authority department of breach increase battery body and the partition beam, solved because there is friction or extrusion between current battery box and the battery corner department and lead to the insulating material (insulating layer, insulating paper etc.) wearing and tearing or the pressure loss of current battery box, produced the risk of electric leakage or arc-discharge.

Description

Anti-creeping battery box

Technical Field

The utility model relates to a battery field especially relates to an anticreep battery box.

Background

The battery box is a box body used for assembling the battery body and has the functions of assisting the ventilation and heat dissipation of the battery body, preventing water and insulation and avoiding collision and abrasion.

A battery box like the public notice permit number CN205985142U of 2016 year 8 month 31, in this current battery box, the both sides of a plurality of electric core modules are equipped with the insulating layer, this battery box passes through the insulating layer and realizes insulating purpose, but the battery box is shaking or rock the in-process, produce relative friction easily between electric core module and the shell or collide with, not only destroyed the outer protective layer of electric core module, especially the higher authority angle department of electric core module is comparatively weak, simultaneously, also can wear and tear or the pressure loss insulating layer, therefore, the effect greatly reduced of insulating layer, it is difficult to play due insulating effect even.

Also like a battery box lower tray assembly of a publication authorization number CN210416193U which is published in 2020, 4, 28, a rear side plate of the battery box tray is provided with insulating paper, and the invention also discloses that the inner surface of the tray assembly is subjected to insulating treatment, the influence of the surface treatment on a butt joint place is avoided, the thickness of the insulating coating is uniform, the appearance has no obvious scratch, but the insulating paper and the insulating coating of the battery box can be damaged at the corners of the battery when the battery box and the battery box vibrate and shake in the process of assembling the battery, so that the risk of electric leakage and arc discharge caused by breakdown of the battery box still exists.

SUMMERY OF THE UTILITY MODEL

In order to overcome above-mentioned prior art at least one kind of defect, the utility model provides a battery box of anticreep has solved because there is friction or extrusion between current battery box and the battery edge and leads to the insulating material (insulating layer, insulating paper etc.) wearing and tearing or the pressure loss of current battery box, has produced the risk of electric leakage or arc discharge.

The utility model discloses a solve the technical scheme that its problem adopted and be:

the utility model provides a battery box of anticreep, including the battery body and with the partition beam of battery body butt, the partition beam is provided with the breach, just the breach exposes the higher authority department of battery body, through the breach increases the higher authority department of battery body with the creepage distance between the partition beam.

Therefore, when there is wearing and tearing or extrusion damage phenomenon in the edge of the battery body, the battery body has all increased certain creepage distance in vertical direction and horizontal direction, make the clearance enlarged between battery body and the spacer beam, on the one hand, avoid the edge of battery body directly to carry on electrically conductive with the spacer beam, on the other hand, also avoid the voltage of the damaged department of battery body edge to break through the tolerance limit of air, make the air ionization become the conductor, form the electrically conductive problem of arc, thereby effectively guaranteed the insulating nature between battery body and the roof beam body, reach the good effect of dual isolated, simultaneously, unexpected, form good dodging between breach and the upper edge of battery body, also avoided the battery case to run into when shaking, produce wearing and tearing between battery body and the spacer beam, collide with, also avoid the battery body to produce the inflation when using for a long time, and produce the problem of extrusion with the spacer beam.

In addition, the heat generated by the battery body of the battery box in the using process can be transferred to the other side of the partition beam through the notch to be released, so that the peripheral temperature of the battery body is kept to be dynamic and constant, and the optimal using state of the battery is further ensured. Besides the purpose of utilizing the gap to carry out heat exchange on two sides of the partition beam, the connecting wire connected with the battery body can pass through the gap, and the purpose of bridging the connecting wires on two sides of the partition beam is achieved.

To sum up, the utility model provides a pair of anticreep battery box has following technological effect:

through set up the breach on the spacer beam, and form creepage extension distance and creepage height between the edge of battery body and the breach, not only avoid battery body edge's shell protective layer directly when damaged to appear directly with spacer beam conductive contact effectively, but also avoided because there is the wearing and tearing or the pressure loss of insulating material (insulating layer, insulating paper etc.) that lead to current battery box between current battery box and the battery because of friction or extrusion, produce the risk of drawing an arc, reach dual anticreep effect, and simultaneously, utilize the breach on the spacer beam, not only realize strideing the connecting wire that meets with the battery body and connect to the opposite side of spacer beam, but also can be with the heat transfer to the spacer beam opposite side that the battery body released in the use, accomplish the purpose of heat exchange.

Drawings

Fig. 1 is a schematic structural view of an anti-creeping battery box of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

fig. 3 is a schematic top view of the anti-creeping battery box of the present invention;

FIG. 4 is a schematic cross-sectional view taken at the location B-B of FIG. 3;

fig. 5 is a partially enlarged schematic view of fig. 4 at C.

Icon: 11-battery body, 12-spacer beam, 13-notch and 14-box body.

Detailed Description

For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of the 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.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

Specifically, referring to fig. 1 to 5, the present invention discloses an anti-creeping battery box, which includes a battery body 11 and a spacer beam 12 abutting against the battery body 11, wherein the spacer beam 12 is provided with a notch 13;

certainly, the anti-creeping battery box further comprises a box body 14, wherein the battery body 11 and the partition beam 12 are fixedly assembled inside the box body 14, specifically, a first battery compartment for assembling the battery body 11 is arranged on one side of the box body 14, and a cavity or a second battery compartment for assembling the battery body 11 is arranged on the other side of the box body 14.

As a core point of this solution, as shown in fig. 5, the notch 13 exposes the upper edge of the cell body 11, and the gap 13 increases the creepage distance between the upper edge of the cell body 11 and the partition beam 12, so that when the creepage phenomenon occurs at the upper edge of the cell body 11 due to wear, damage, or the like, the electricity will not be directly conducted to the partition beam 12, and the risk of arc strike due to the small creepage distance between the partition beam 12 and the cell ladder 11 will not occur, thereby achieving a good creepage-preventing effect.

Unexpected, breach 13 still can realize the effect of dodging between the higher authority angle department of the battery body 11 and the breast beam 12, avoided the battery body 11 when box 14 produces vibrations or rocks, the higher authority angle department of the battery body 11 and breast beam 12 produce the friction or collide with, effectively avoided the higher authority angle department of the battery body 11 to produce wearing and tearing easily or damaged problem, the anticreep effect of battery box has effectively been avoided more, simultaneously, breach 13 can also carry out the connection or arranging between water pipe or the pencil in box 14 inside.

Furthermore, a creepage height h is formed between the upper top surface of the battery body 11 and the bottom surface of the notch 13, a creepage extension distance D is formed between the side surface of the battery body 11 and the side surface of the notch 13, and the distance between the spacer beam 12 and the battery body 11 is increased by the creepage height h and the creepage extension distance D, so as to avoid arcing.

It should be noted that the battery body 11 may be a single or multiple battery packs, or may be a single battery. The notch is a through notch formed by missing one corner of the partition beam 12, and is not a sink groove or a through hole.

In this embodiment, the top surface of the battery 11 is set to be level with the partition beam 12, and then after the partition beam 12 is provided with the notch 13, the creepage distance between the battery 11 and the partition beam 12 in the vertical direction is set to be the creepage height h, and certainly, the top surface of the battery 11 is set to be higher than the partition beam 12, and the relative height difference is T, and at this time, the creepage distance between the battery 11 and the partition beam 12 in the vertical direction is extended by h-T, and then the creepage distance between the battery 11 and the partition beam 12 in the vertical direction is increased. When the spacer beam 12 is not provided with the notch 13, the side surface of the battery body 11 is completely vertically projected on the spacer beam 12, and when the spacer beam 12 is provided with the notch 13 and the notch 13 exposes the battery body 11, the creepage extension distance D formed between the side surface of the battery body 11 and the side surface of the notch 13 is the creepage distance of the battery body 11 and the spacer beam 12 in the horizontal direction, so that the creepage distance of the battery body 11 and the spacer beam 12 in the horizontal direction is also increased.

Therefore, when there is abrasion or extrusion damage at the edge of the battery body 11, a certain creepage distance is increased in the vertical direction and the horizontal direction of the battery body 11, so that a gap is enlarged between the battery body 11 and the partition beam 12, on one hand, the edge of the battery body 11 is prevented from being directly conductive with the partition beam 12, on the other hand, the voltage at the damaged position at the edge of the battery body 11 is also prevented from breaking through the tolerance limit of air, so that the air is ionized into a conductor to form the conductive problem of arc discharge, thereby effectively ensuring the insulation between the battery body 11 and the beam body, achieving the good effect of double insulation, and unexpectedly, a good avoidance is formed between the notch 13 and the upper edge of the battery body 11, that is, when the battery box is shaken due to vibration, the battery body 11 and the partition beam 12 are abraded and collided, and the problem that the battery body 11 expands and extrudes with the partition beam 12 when being used for a long time is also avoided.

In addition, heat generated by the battery body 11 of the battery box in the using process can be transferred to the other side of the partition beam 12 through the notch 13 to be released, so that the temperature around the battery body 11 is kept dynamically constant, and the optimal using state of the battery is further ensured. In addition to the purpose of heat exchange at both sides of the partition beam 12 by using the notch 13, the connecting wires connected to the battery cell 11 can pass through the notch 13, so as to achieve the purpose of bridging the connecting wires at both sides of the partition beam 12.

Furthermore, as shown in FIG. 5, the creepage extension distance D is not less than 2mm. Specifically, when the creepage extension distance between the upper top surface of the battery body 11 and the bottom surface of the notch 13 is less than 2mm, which results in that the gap between the battery body 11 and the spacer beam 12 is too small, the voltage released after the battery body 11 is damaged breaks through the air between the battery body 11 and the spacer beam 12, so that the battery body 11 is conducted with the spacer beam 12, which causes an arc discharge effect, and therefore, the insulation protection effect of the notch 13 on the battery body 11 is greatly reduced. When the creepage extension distance between the upper top surface of the battery body 11 and the bottom surface of the notch 13 is 2mm or exceeds 2mm, the battery body 11 is effectively ensured not to be easily broken or not to break through air to be communicated with the spacer beam 12, so that a good insulation effect between the battery body 11 and the spacer beam 12 is realized, the use safety performance of the battery box is greatly improved, and the problem of heating out of control caused by an arc discharge effect generated between the battery body 11 and the spacer beam 12 is effectively avoided.

It should also be noted that, as shown in fig. 3 to 5, the distance of the cell body 11 along the length direction of the spacer 12 is L, and the creepage extension distance D is less than or equal to 0.5L. Specifically, when the creepage extension distance D between the side surface of the battery body 11 and the side surface of the notch 13 is greater than the distance L of the battery body 11 along the length direction of the spacer beam 12, the stress constraint of the battery body 11 acting on the spacer beam 12 in a manner of abutting against the battery body 11 is greatly weakened, so that the spacer beam 12 cannot effectively constrain the battery body 11 in the expansion process of the battery body 11, thereby affecting the use safety performance of the battery body 11. Namely, because the battery body 11 will produce expansion deformation in the long-term use process, the spacer beam 12 abuts against the battery body 11 to restrain the expansion deformation of the battery body 11, and when the acting surface between the spacer beam 12 and the battery body 11 is less than half, the restraint on the battery body 11 is weakened, so that the expansion deformation of the battery body 11 is too large, and further, the explosion capacity of the explosion-proof valve on the battery body 11 greatly influences the safety performance of the battery. In addition, the edge and the corner of the notch 13 are sharp, and the battery body 11 expands to press the partition beam 12 to deform, so that the edge and the corner of the notch 13 easily pierce the battery body 11. When the creepage extension distance D between the side surface of the battery body 11 and the side surface of the notch 13 is within a range of half of the distance L of the battery body 11 along the length direction of the spacer beam 12, and at least the creepage extension distance D between the side surface of the battery body 11 and the side surface of the notch 13 is half of the distance L of the battery body 11 along the length direction of the spacer beam 12, the stress constraint between the battery body 11 and the spacer beam 12 can be ensured, so that the use safety performance of the battery body 11 is ensured, and the stable use of the battery box is further improved.

More preferably, as shown in fig. 3 to 5, the distance of the battery body 11 along the length direction of the spacer 12 is L, and the creepage extension distance D is less than or equal to 1/3L. That is, the creepage extension distance is 2mm or more and D is not less than 1/3L, which not only can ensure good insulation effect between the battery body 11 and the spacer beam 12, but also can ensure the use safety performance of the battery body 11, thereby ensuring the use stability of the battery box and being in the best use state.

Furthermore, as shown in FIG. 5, the creepage height h is not less than 5mm. Specifically, when the creepage height h between the upper top surface of the battery body 11 and the bottom surface of the notch 13 is less than 5mm, the gap between the battery body 11 and the partition beam 12 is too small, and the voltage released after the battery body 11 is damaged breaks through the air between the battery body 11 and the partition beam 12, so that the battery body 11 is conducted with the partition beam 12, an arc discharge effect is also caused, and the insulation protection effect of the notch 13 on the battery body 11 is greatly reduced. And when the creepage height h between the upper top surface of the battery body 11 and the bottom surface of the notch 13 is equal to or greater than 5mm, a sufficient gap is kept between the battery body 11 and the partition beam 12, so that the occurrence of an arc discharge phenomenon and a fire problem caused by an arc discharge effect are avoided, and the use safety performance of the battery box is effectively improved.

It should be noted that, because the top end of the battery body 11 needs to be assembled and connected with the related battery connectors and components, a certain height space is considered to be preset, so as to facilitate the subsequent assembly of the battery body 11 and the battery connectors in the battery box.

In order to better improve the insulation between the battery body 11 and the partition beam 12 and further ensure the use safety of the battery body 11, the partition beam 12 and the battery body 11 are provided with an insulation structure. The insulating structure may be an insulating glue layer, an insulating sheet, or an insulating plate, specifically, the insulating structure is preferably disposed on the sidewall of the gap 13 of the partition beam 12, and may also be disposed on the sidewall of the box body 14, and the battery body 11 and the partition beam 12 are further isolated by the insulating structure, so that the electricity-proof effect between the battery body 11 and the partition beam 12 is further improved, and the safety performance of the battery box is further improved.

Preferably, the insulating structure can cover at least part of the notch 13.

Furthermore, because the top end of the battery body 11 is provided with the electrode column, the battery connecting piece connected with the electrode column, and the spacer beam 12 directly stressed on the electrode column or the battery connecting piece, the spacer beam has low stress capability, is easy to collide and extrude, causes poor contact, and even generates pressure loss, and the height of the spacer beam 12 is smaller than or equal to that of the battery body 11 in consideration of and aiming at the problem. Thereby effectively guaranteed the compactness of battery box structure and stability, also further guaranteed the stability of battery box in the use.

Preferably, as shown in fig. 1 to fig. 3, notches 13 are provided on two opposite sides of the partition beam 12, so that the two opposite sides of the partition beam 12 are isolated from the battery body 11 to avoid arcing. In addition, the battery body 11 can be orderly wired from two sides, and the notches 13 at two opposite sides of the partition beam 12 are respectively bridged, so that the assembly and wiring inside the battery box are more orderly when the assembly and wiring of the battery box are improved, and the follow-up investigation and maintenance are facilitated. Meanwhile, heat generated by the cell body 11 in the using process can be uniformly transferred from the notches 13 on the two sides to the other side of the partition beam 12, and the problem of local heating of the cell box caused by single-side heat exchange is avoided.

The technical means disclosed by the scheme of the present invention is not limited to the technical means disclosed by the above embodiments, but also includes the technical scheme formed by the arbitrary combination of the above technical features. It should be noted that modifications and embellishments may be made by those skilled in the art without departing from the principles of the present invention and are considered within the scope of the invention.

Claims (12)

1. An anticreep battery box, includes battery body (11) and separates roof beam (12) with battery body (11) butt joint, its characterized in that:

the utility model discloses a battery pack, including battery body (11), spacer beam (12) is provided with breach (13), just breach (13) expose the last edge of battery body (11), through breach (13) increase the last edge of battery body (11) with the creepage distance between spacer beam (12).

2. An anti-creeping battery box as claimed in claim 1, wherein: the upper top surface of the battery body (11) and the bottom surface of the notch (13) form a creepage height h, the side surface of the battery body (11) and the side surface of the notch (13) form a creepage extension distance D, and the distance beam (12) increases creepage distance through the creepage height h and the creepage extension distance D and the battery body (11) so as to avoid arc discharge.

3. An anti-creeping battery box as claimed in claim 1, wherein:

the creepage extension distance D is more than or equal to 2mm.

4. An anti-creeping battery box according to claim 3, characterized in that:

the distance of the battery body (11) along the length direction of the spacer beam (12) is L, and the creepage extension distance D is less than or equal to 0.5L.

5. An anti-creeping battery box as claimed in claim 4, wherein:

the distance of the battery body (11) along the length direction of the spacer beam (12) is L, and the creepage extension distance D is less than or equal to 1/3L.

6. An anti-creeping battery box according to claim 2, characterized in that:

the creepage height h is more than or equal to 5mm.

7. An anti-creeping battery box according to claim 1, characterized in that: and an insulating structure is arranged between the partition beam (12) and the battery body (11).

8. An anti-creeping battery box according to claim 7, characterized in that: the insulating structure is capable of covering at least part of the gap (13).

9. An anti-creeping battery box as claimed in claim 1, wherein: the height of the partition beam (12) is less than or equal to the height of the battery body (11).

10. An anti-creeping battery box as claimed in claim 1, wherein: the notches (13) are formed in two opposite sides of the partition beam (12), so that the two opposite sides of the partition beam (12) are isolated from the battery body (11) to avoid arc discharge.

11. An anti-creeping battery box according to any one of claims 1 to 10, characterized in that: the battery pack is characterized by further comprising a box body (14), wherein the battery body (11) and the partition beam (12) are fixedly assembled inside the box body (14).

12. An anti-creeping battery box according to claim 11, characterized in that: one side of the box body (14) is provided with a first battery compartment for assembling the battery body (11), and one side of the box body (14) is provided with a cavity or a second battery compartment for assembling the battery body (11).

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