CN212907958U

CN212907958U - Battery pack box and power battery pack

Info

Publication number: CN212907958U
Application number: CN202021466236.1U
Authority: CN
Inventors: 杨森; 李冯宾; 刘鹏; 何剑; 徐强
Original assignee: Soundon New Energy Technology Co Ltd
Current assignee: Soundon New Energy Technology Co Ltd
Priority date: 2020-07-23
Filing date: 2020-07-23
Publication date: 2021-04-06
Anticipated expiration: 2030-07-23

Abstract

The utility model provides a battery package box and power battery package, wherein, battery package box, include: the box body shell is a box-shaped cavity with an opening at the top; the box body frame is arranged in the box-shaped cavity and comprises a transverse supporting unit, a longitudinal supporting unit and a vertical supporting unit, the supporting units are sequentially connected end to form an accommodating inner cavity for accommodating the battery module, and the transverse supporting unit and/or the longitudinal supporting unit are/is provided with a fixing part for fixing the battery module; power battery package, including foretell battery package box, be located the battery module that holds the inner chamber of box frame, the battery module includes a plurality of electric cores, and each electric core is close to the range each other to be connected with the fixed part of box frame. Such setting when effectively utilizing the space, ensures the steadiness of battery package structure, and the structure of box frame makes it expand a plurality of accommodation cavities easily, and places more battery modules to improve the energy density of whole battery package.

Description

Battery pack box and power battery pack

Technical Field

The utility model relates to a new forms of energy power battery technical field, concretely relates to battery package box and power battery package.

Background

Currently, in the mounting of a battery unit for an automobile, a case directly covering the outside of the battery unit is generally used to protect and mount the battery unit. However, since the strength of the battery cell case is not high, the battery cell is easily damaged when an external force is applied.

In addition, along with the continuous development of new energy automobile technique, this technique is more and more applied to the special-purpose vehicle field, and the size space that this kind of motorcycle type was reserved for power battery system is great, and traditional mode sets up a plurality of battery packages with this space size side by side in proper order, and the box between each battery package probably will occupy more space, has just so reduced the utilization efficiency in whole space. Secondly, there is also a high demand for the volumetric energy density of the power battery system for certain special vehicles.

In summary, a need exists for a battery pack case that can satisfy the strength requirement and can also accommodate a power battery module with higher energy density.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a battery package box and power battery package can satisfy the intensity requirement, can hold the power battery module that carries the energy density higher again.

In order to achieve the above object, the utility model provides a battery package box, include:

the box body shell is a box-shaped cavity with an opening at the top;

the box frame is arranged in the box cavity and comprises a transverse supporting unit, a longitudinal supporting unit and a vertical supporting unit, the transverse supporting unit, the longitudinal supporting unit and the vertical supporting unit are sequentially connected end to form an accommodating inner cavity for accommodating the battery module, and the transverse supporting unit and/or the longitudinal supporting unit are/is provided with fixing parts for fixing the battery module.

As a further improvement of the above solution, the box frame has at least one accommodating cavity for accommodating the battery module.

As a further improvement of the above solution, the longitudinal supporting unit is provided with a fixing portion for fixing the battery module, and the fixing portion is disposed on at least one longitudinal side surface of the longitudinal supporting unit.

As a further improvement of the above scheme, the fixing portion is a stud, and the stud is welded to the longitudinal side surface.

As a further improvement of the above scheme, the battery pack case further comprises a case cover, and the case cover is detachably connected with the case body shell.

As a further improvement of the above scheme, the case cover is detachably connected with the case body housing through bolts, specifically, a rivet nut is arranged at the top of the case body housing, and correspondingly, a through hole matched with the rivet nut is arranged on the case cover.

As a further improvement of the above scheme, the box body shell is provided with a first mounting chassis and a second mounting chassis.

As a further improvement of the scheme, the box body shell, the box body frame, the first mounting underframe and the second mounting underframe are connected into a whole through welding.

As a further improvement of the scheme, the side surface of the box body shell is provided with a welding nut for installing a pressure relief valve so as to ensure that the protection of the battery pack box body reaches IP 67.

As a further improvement of the scheme, the side surface of the box body shell is also provided with a press rivet nut used for locking the connector.

As a further improvement of the scheme, the transverse supporting unit, the longitudinal supporting unit or the vertical supporting unit is one or more of a rectangular pipe, a square pipe and a channel steel.

The utility model also provides a power battery package, including any one of the aforesaid battery package box, be located the battery module that holds the inner chamber of the box frame of battery package box, the battery module includes a plurality of electric cores, and each electric core is near arranging each other to be connected with the fixed part of box frame.

Because the utility model adopts the above technical scheme, make the beneficial effect that this application possesses lie in:

1. the utility model provides a battery package box, box frame including the box shell that has open-top box cavity and each support element constitution, each support element end to end connection constitutes the inner chamber that holds the battery module, and be equipped with the fixed part of fixed battery module on the support element, such setting, can place the battery module in the inner chamber that holds of the box frame that has the additional strengthening, and fix the battery module in the box frame that has the additional strengthening through the fixed part, thereby when improving the bulk strength of battery package box, can effectively fix the battery, in order to avoid when receiving external force, cause the injury to the battery module.

2. The utility model provides a battery package box, because box frame adopts horizontal supporting element, vertical supporting element and vertical supporting element to connect into end to end in proper order and has the inner chamber that holds the battery module, consequently, such structure extends a plurality of inner chambers that hold very easily for this battery package box can hold multiunit battery module, thereby improves the energy density of whole battery package, in order to satisfy the demand of some special type vehicles. Compared with the traditional mode of stacking a plurality of battery packs, the structure of the battery pack box body can accommodate more battery modules, and simultaneously can reduce the gravity center of the battery modules so as to ensure the overall stability of the overall battery pack; compare the traditional mode of arranging a plurality of batteries side by side, adjacent battery package box occupation space, and it is less to reserve battery module fixed mounting space, is difficult to fix, and this battery package box's structure is in be equipped with fixedly on the vertical support unit the fixed part of battery module, the fixed part sets up on at least one vertical side of vertical support unit for when the fixed of adjacent battery module, can set up the fixed part on two relative vertical sides of vertical support unit respectively, just so solved the constrictive problem in fixed space of adjacent module.

3. The utility model provides a battery pack box, a rivet nut is arranged on the top of a box shell, thus realizing rigid connection between the box shell and a box cover and ensuring that the structure of the battery pack is firmer and more stable; and the side edge of the box body shell is provided with a press riveting nut and a welding nut to realize the stable connection of the related connection of the press riveting nut and the welding nut.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts;

fig. 1 is a perspective view of a battery pack case of the present invention;

fig. 2 is a bottom view of a battery pack case according to the present invention;

FIG. 3 is a perspective view of the frame of the case of the present invention;

the reference numbers are as follows:

1. a case body shell; 11. pulling and riveting the nut; 2. a box frame; 21. a lateral support unit; 22. a longitudinal support unit; 23. a vertical supporting unit; 24. an accommodating cavity; 25. a fixed part; 3. a first mounting chassis; 4. a second mounting chassis; 5. welding a nut; 6. and (6) pressing and riveting the nut.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that the terms "upper", "lower", "left", "right", and the like used in the embodiments of the present application are described in terms of the angles shown in the drawings, and should not be construed as limiting the embodiments of the present application. In addition, in this context, it will also be understood that when an element is referred to as being "on" or "under" another element, it can be directly on "or" under "the other element or be indirectly on" or "under" the other element via an intermediate element.

The invention will be further described with reference to the following figures:

example 1:

referring to fig. 1-3, the utility model provides a battery package box, include: the box body shell 1 is provided with a box body frame 2, the upper box body is a box-shaped cavity with an opening at the top, and the box body frame 2 is arranged in the box-shaped cavity and welded into a whole; the box body frame 2 comprises a transverse supporting unit 21, a longitudinal supporting unit 22 and a vertical supporting unit 23, the transverse supporting unit 21, the longitudinal supporting unit 22 and the vertical supporting unit 23 are sequentially connected end to form an accommodating inner cavity 24 for accommodating the battery module, and the transverse supporting unit 21 and/or the longitudinal supporting unit 22 are/is provided with a fixing part 25 for fixing the battery module. Such setting can place the battery module in the inner chamber 24 that holds of box frame 2 that has the additional strengthening to fix the battery module in the box frame 2 that has the additional strengthening through fixed part 25, thereby when improving the bulk strength of battery package box, can effectively fix the battery, in order to avoid when receiving external force, cause the injury to the battery module.

Because the box frame 2 adopts the transverse supporting unit 21, the longitudinal supporting unit 22 and the vertical supporting unit 23 which are sequentially connected end to form the accommodating inner cavity 24 for accommodating the battery module, the structure can be easily expanded to a plurality of accommodating inner cavities 24. Therefore, in this embodiment, the case frame 2 has three accommodating cavities 24 for accommodating the battery modules, so that the present battery pack case can accommodate three sets of battery modules, thereby improving the energy density of the whole battery pack to meet the requirements of some special vehicles. Compare the traditional mode of piling up a plurality of battery packages, the structure of this battery package box can reduce the focus of battery module when can holding more battery module to guarantee the overall stability of whole battery package.

As a preferred embodiment, referring to fig. 3, in order to facilitate the fixed connection with the battery module and maintain the versatility of the battery module, the vertical supporting unit 22 is provided with a fixing portion 25 fixing the battery module, and the fixing portion 25 is provided on at least one vertical side surface of the vertical supporting unit 22. In this embodiment, fixed part 25 is the double-screw bolt, just the double-screw bolt with vertical side welded connection, on connecting the vertical supporting unit 22 of two adjacent battery modules, has welded the double-screw bolt respectively at its relative both sides face, such setting compares the traditional mode of arranging a plurality of batteries side by side, and adjacent battery package box is occupation space not only, and it is less to reserve battery module fixed mounting space, is difficult to fix, and the structure of this battery package box is in be equipped with fixedly on vertical supporting unit 22 the double-screw bolt of battery module, especially weld the double-screw bolt respectively at the relative both sides face of connecting the vertical supporting unit 22 of adjacent battery module, just so solved the narrow problem of fixed space of adjacent module.

As a preferred embodiment, the battery pack case further comprises a case cover, the case cover is detachably connected with the case body housing 1 through bolts, specifically, the top of the case body housing 1 is provided with a rivet nut 11, correspondingly, the case cover is provided with a through hole matched with the rivet nut 11, and by such arrangement, rigid connection between the case body housing 1 and the case cover can be realized, so that the structure of the battery pack is firmer and more stable.

As a preferred embodiment, referring to fig. 2, a first mounting underframe 3 and a second mounting underframe 4 are arranged at the bottom of a box body shell 1, and the first mounting underframe 3 and the second mounting underframe 4 are combined together to realize a mounting frame of the battery pack box body, and the structure only occupies the space in the height direction, and is matched with the structure of the box body frame 2, so that the power battery system space of a special vehicle with higher height and limited length and width is effectively adapted, and the space utilization rate is improved; and the box shell 1, the box frame 2, the first installation underframe 3 and the second installation underframe 4 are connected into a whole through welding, so that the overall structural strength of the battery pack box is higher and the stability is better.

As a preferred embodiment, in order to ensure the connection between the frame box and the rest components of the power battery pack assembly and meet the requirement that the protection capability of the power battery pack assembly reaches the IP67 level, a welding nut 5 is arranged on the side surface of the box shell 1 for installing a pressure release valve, and a press-riveting nut 6 is further arranged on the side surface of the box shell 1 for locking a connector.

As a preferred embodiment, in order to provide stable support for the box body frame 2, the transverse supporting unit 21, the longitudinal supporting unit 22 or the vertical supporting unit 23 is one or more of a rectangular pipe, a square pipe and a channel steel, and in this embodiment, the transverse supporting unit 21, the longitudinal supporting unit 22 or the vertical supporting unit 23 are respectively square pipes with different lengths.

Example 2:

the utility model also provides a power battery package, including any one of the aforesaid battery package box, be located the box frame 2 of battery package box hold the battery module in inner chamber 24, the battery module includes a plurality of electric cores, and each electric core is near arranging each other to be connected with the fixed part 25 of box frame 2. Such setting can place the battery module in the inner chamber 24 that holds of box frame 2 that has the additional strengthening to fix the battery module in the box frame 2 that has the additional strengthening through fixed part 25, thereby when improving the bulk strength of battery package box, can effectively fix the battery, in order to avoid when receiving external force, cause the injury to the battery module, simultaneously still effectual space that has utilized.

The above is a detailed introduction of the present invention, and the principles and embodiments of the present invention have been explained herein using specific embodiments, and the explanations of the above embodiments are only used to help understand the methods and core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims

1. A battery pack case, comprising:

the box body shell is a box-shaped cavity with an opening at the top;

2. The battery pack case according to claim 1, wherein the case frame has at least one receiving cavity for receiving the battery module.

3. The battery pack case according to claim 1 or 2, wherein the longitudinal support unit is provided with a fixing portion for fixing the battery module, the fixing portion being provided on at least one longitudinal side of the longitudinal support unit.

4. The battery pack case according to claim 3, wherein the fixing portion is a stud, and the stud is welded to the longitudinal side surface.

5. The battery pack case according to claim 1 or 2, further comprising a case cover detachably connected to the case housing.

6. The battery pack box body according to claim 5, wherein the box cover is detachably connected with the box body shell through bolts, specifically, a rivet nut is arranged at the top of the box body shell, and correspondingly, a through hole matched with the rivet nut is arranged on the box cover.

7. The battery pack case according to claim 1 or 2, wherein the case housing is provided with a first mounting chassis and a second mounting chassis.

8. The battery pack case of claim 7, wherein the case housing, the case frame, the first mounting chassis and the second mounting chassis are integrally connected by welding.

9. The battery pack case according to claim 1 or 2, wherein a weld nut and a clinch nut are provided on a side surface of the case housing.

10. A power battery pack, comprising a battery pack case according to any one of claims 1 to 9, and a battery module disposed in the accommodating cavity of the case frame of the battery pack case, wherein the battery module comprises a plurality of battery cells, and the battery cells are arranged next to each other and connected with the fixing portion of the case frame.