CN216928690U

CN216928690U - Battery pack charge adjusting device

Info

Publication number: CN216928690U
Application number: CN202220165742.XU
Authority: CN
Inventors: 王甲甲
Original assignee: China Aviation Lithium Battery Co Ltd
Current assignee: China Aviation Lithium Battery Co Ltd
Priority date: 2022-01-19
Filing date: 2022-01-19
Publication date: 2022-07-08
Anticipated expiration: 2032-01-19

Abstract

The utility model provides a battery pack charge adjusting device, which comprises: a length adjustment mechanism configured to adjust a size in a length direction of the battery pack; a width adjustment mechanism connected to the length adjustment mechanism, the width adjustment mechanism configured to adjust a size in a width direction of the battery pack; and the probe adjusting mechanism comprises at least one sliding connection seat, the sliding connection seat is connected to the length adjusting mechanism in a sliding manner, and the sliding connection seat is connected with a probe. The battery pack charge adjusting device can be erected above battery packs with different lengths and widths, the probes can be connected with busbars at different positions in the battery packs, frequent disassembly and assembly are not needed, even if the battery packs which are fixed in a box are not needed to be disassembled for adjustment, the battery packs can be conveniently charged and adjusted, and adjustment efficiency is improved.

Description

Battery pack charge adjusting device

Technical Field

The utility model relates to the technical field of batteries, in particular to a battery pack charge adjusting device.

Background

After the battery pack is integrated, in the long-term storage, standing and use processes, the consistency of the voltage of the batteries is deteriorated due to different self-discharge and use working conditions of the batteries, and the performance and the service life of the batteries are influenced.

In order to solve the problem of poor voltage consistency of the batteries, when the voltage of individual batteries in the module is higher or lower, the currently adopted load adjusting device clamps a battery pole conductive bar by using a charge and discharge machine to adjust the load of abnormal batteries by low current if aiming at a battery pack which is not assembled in a box, particularly, an alligator clip is adopted to clamp a bus bar, and a charge and discharge motor is utilized to adjust the load of the batteries: discharging when the battery voltage is higher; and (5) charging the battery when the voltage of the battery is low. However, the crocodile clip joint generates heat seriously during long-time charging and discharging, and when a plurality of batteries need to be adjusted, the connection position of the crocodile clip needs to be frequently changed. If the module is fixed in the battery box, the module needs to be detached and moved out of the battery box to perform the operation due to the limited space in the battery box, and the adjustment efficiency is very low.

In summary, when the conventional load adjusting device adjusts the load of the battery pack, the battery pack needs to be frequently disassembled and assembled, and when the battery pack which is fixed in the box is adjusted, the battery pack even needs to be disassembled, so that the adjustment is inconvenient, and the charge adjusting efficiency is too low.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a battery pack charge adjusting device capable of improving charge adjusting efficiency.

To achieve the above object, the present invention provides a battery pack charge adjusting device, including:

a length adjustment mechanism configured to adjust a size in a length direction of the battery pack;

a width adjustment mechanism connected to the length adjustment mechanism, the width adjustment mechanism configured to adjust a size in a width direction of a battery pack;

and the probe adjusting mechanism comprises at least one sliding connection seat, the sliding connection seat is connected to the length adjusting mechanism in a sliding manner, and the sliding connection seat is connected with a probe.

Compared with the prior art, the technical scheme has the following advantages:

through setting up length adjustment mechanism and width adjustment mechanism, adjust the size of group battery lotus electricity adjusting device in group battery length direction and width direction, can make group battery lotus electricity adjusting device can erect in the group battery top of different length and width. Through setting up sliding connection seat and length adjustment mechanism sliding connection for probe adjustment mechanism can be at the length direction round trip movement of group battery, thereby makes the probe be connected with the busbar of different positions in the group battery, and need not frequent dismouting, even also need not the unpacking regulation to the fixed group battery of having gone into the case, makes things convenient for the electric charge of group battery to adjust, and then has improved regulation efficiency.

Drawings

The drawings are only for purposes of illustrating and explaining the present invention and are not to be construed as limiting the scope of the present invention. Wherein:

fig. 1 is a schematic perspective view of a battery pack charge regulating device provided by the present invention;

fig. 2 is a schematic structural diagram of a battery pack charge adjusting device applied to a battery module according to the present invention;

fig. 3 is a schematic top view of the structure of fig. 2.

The reference numbers illustrate:

10. a length adjustment mechanism; 110. a fixed section; 120. a moving section; 20. a width adjustment mechanism; 210. a first support arm; 220. a second support arm; 230. connecting sleeves; 240. positioning holes; 30. a probe adjustment mechanism; 310. a sliding connection seat; 320. a probe; 321. a charging connection part; 322. an intermediate portion; 323. a busbar connection portion; 324. a spring.

Detailed Description

The present application will be described in further detail below with reference to the accompanying drawings and examples. The features and advantages of the present application will become more apparent from the description.

The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. While the various aspects of the embodiments are presented in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

In addition, the technical features related to the different embodiments of the present application described below may be combined with each other as long as they do not conflict with each other.

As shown in fig. 1 to 3, the present invention provides a battery pack charge adjusting device, including:

a length adjustment mechanism 10 configured to adjust a size in a length direction of the battery pack;

a width adjustment mechanism 20 connected to the length adjustment mechanism 10, the width adjustment mechanism 20 being configured to adjust a size in a width direction of the battery pack;

the probe adjusting mechanism 30 includes at least one sliding connection seat, the sliding connection seat 310 is slidably connected to the length adjusting mechanism 10, and the probe 320 is connected to the sliding connection seat 310.

The working principle of the battery pack charge adjusting device provided by the embodiment of the utility model is as follows:

the size of the battery pack charge adjusting device along the length direction of the battery pack is adjusted by adjusting the length adjusting mechanism 10, and the size of the battery pack charge adjusting device along the width direction of the battery pack is adjusted by adjusting the width adjusting mechanism 20, so that the battery pack charge adjusting device can be erected on battery packs of different models. The position of the sliding connection seat 310 of the probe adjusting mechanism 30 on the length adjusting mechanism 10 is adjusted, so that the probe 320 can be in contact with a busbar of the battery pack, and the charging and discharging of the battery pack can be completed by matching with a charging and discharging machine.

Specifically, the length of the length adjustment mechanism 10 in the length direction of the battery pack, which refers to the stacking direction of the plurality of cells in the battery pack, specifically, the direction in which the plurality of cells are arranged in sequence when the cells are grouped, is adjustable. The length adjustment mechanism 10 includes an adjustment beam that can be extended and contracted in the length direction of the battery pack, the adjustment beam includes a fixed section 110 and a moving section 120 connected to one end of the fixed section 110, and the moving section 120 can be reciprocally moved in the length direction of the battery pack (the direction indicated by an arrow S in fig. 2) with respect to the fixed section, and two support beams are connected to the other end of the fixed section 110 and the free end of the moving section 120, respectively. In specific implementation, the moving section 120 can translate relative to the fixed section 110, a sliding groove can be arranged on the fixed section 110, a sliding block matched with the sliding groove is arranged on the moving section 120, and the moving section 120 can translate relative to the fixed section 110 through the reciprocating movement of the sliding block along the sliding groove; or, a through hole is formed at one end of the fixed section 110, the moving section 120 is inserted into the through hole, and a gap is formed between the moving section 120 and the inner surface of the through hole, so that the moving section 120 can reciprocate in the through hole, and a limiting component (such as a snap spring or a limiting pin) is disposed at a port at one end of the fixed section 110, so as to limit the moving section 120 after the moving section is drawn out from the fixed section 110 by a suitable length. Through the cooperation of the fixed section 110 and the movable section 120, the length of the adjusting beam can be freely adjusted, so that the battery pack charge adjusting device is erected on battery packs with different lengths.

In an embodiment, the length of the width adjusting mechanism 20 in the width direction of the battery pack is adjustable, and the width adjusting mechanism 20 includes two support beams, which are respectively connected to two ends of the adjusting beam and can extend and contract along the width direction of the battery pack.

Suitably, the support beam comprises a first support arm 210, a second support arm 220 and a connecting sleeve 230, the connecting sleeve 230 is a hollow cylindrical structure with two open ends, and the connecting sleeve 230 is connected to the end surface of the adjusting beam; the first end of the first supporting arm 210 is inserted into the first end of the connecting sleeve 230, the first end of the second supporting arm 220 is inserted into the second end of the connecting sleeve 230, and the first supporting arm 210 and the second supporting arm 220 can move toward or away from each other along the axial direction of the connecting sleeve 230.

Specifically, two connecting sleeves 230 are respectively and fixedly connected with the fixed section 110 and the movable section 120 of the adjusting beam, and the connecting sleeves 230 are hollow cylindrical structures with two open ends. Wherein, there is a gap between the first support arm 210 and the inner surface of the connection sleeve 230 so that the first support arm 210 can move reciprocally with respect to the connection sleeve 230 in the width direction of the battery pack (the direction indicated by the arrow W in fig. 2). The second support arm 220 is also capable of reciprocating relative to the connection sleeve 230 in the width direction of the battery pack. The first support arm 210 and the second support arm 220 may be moved simultaneously with respect to the connection sleeve 230, or may be moved separately from the connection sleeve 230. Preferably, the connection sleeve 230 is disposed at the middle position of the width adjustment mechanism 20, when the first support arm 210 and the second support arm 220 are controlled to move in the axial direction of the connection sleeve 230 in the opposite direction, the first support arm 210 and the second support arm 220 are partially overlapped, and when the first support arm 210 and the second support arm 220 are controlled to move in the axial direction of the connection sleeve 230 in the opposite direction, the overlapped portion of the two is gradually reduced, so that the length of the support beam can be changed, and the battery pack charge adjustment device is erected on battery packs with different widths.

In another embodiment, the length adjusting mechanism and the width adjusting mechanism can be configured as multi-section beams, the head end of each section of beam is provided with a clamping groove, the tail end of each section of beam is provided with a buckle, and the multi-section beams are connected in a clamping mode through the matching of the clamping grooves and the buckles. When the multi-section beam assembling device is used specifically, when the battery pack is subjected to charge and voltage regulation as required, the number of sections of the clamped beam is selected according to the length and the width of the battery pack, and the multi-section beam is assembled.

The probe adjusting mechanism 30 comprises at least one sliding connection seat 310, the sliding connection seat 310 is slidably connected to the adjusting beam, and the probe 320 is connected to the sliding connection seat 310. In an embodiment, in order to improve the adjustment efficiency of charging and discharging, the probe 320 is generally provided in a plurality, and specifically, the probe 320 includes: a charging connection part 321, an intermediate part 322, and a bus bar connection part 323. Charging connection portion 321 is connected to an upper end of intermediate portion 322, and bus bar connection portion 323 is connected to a lower end of intermediate portion 322. The charging connection part 321 is used for connecting an external charging and discharging device, and the bus bar connection part 323 is used for connecting a battery post in the battery pack.

The charging connection portion 321 is electrically connected with the charging and discharging motor, and the specific connection mode can be through bolt connection or through earphone type jack connection. In a specific embodiment, the wire diameter of the cable connected between the charging and discharging motor and the charging connection portion 321 can be selected according to the specific specification of the battery pack, so that the charging and discharging adjusting device of the battery pack can be adapted to cables with different wire diameters, charging and discharging of currents with different sizes are achieved, and the adaptation degree of the device is improved.

Further, each of the charging connection portion 321, the bus bar connection portion 323, and the intermediate portion 322 is a cylinder, and may be a cylinder or a prism, for example, a rectangular parallelepiped. Specifically, the cylinder sectional area of the bus bar connection part 323 is larger than that of the middle part 322.

The bottom end of the bus bar connecting part 323 is connected to the bus bar of the battery pack in a contact manner, and further, the probe adjusting mechanism 30 further includes an elastic member, a first end of which is connected to the bus bar connecting part 323, and the other end of which is connected to the slide connector holder 310, the elastic member being configured to drive the bus bar connecting part 323 to abut against the bus bar of the battery pack.

In an embodiment, as shown in fig. 2, the elastic member is a spring 324, a first end of the spring 324 abuts against an end surface of the bus bar connecting portion 323, a second end of the spring 324 abuts against the sliding connection seat 310 and winds around the middle portion 322, a cross section exists at a joint of the bus bar connecting portion 323 and the middle portion 322 because a cross section of a cylinder of the bus bar connecting portion 323 is larger than a cross section of a cylinder of the middle portion 322, the first end of the spring 324 can abut against the cross section, a hard force applied when the spring is pressed down is adjusted to a soft force, the probe is prevented from being damaged due to excessive pressure, and therefore reliable contact between the probe and a bus bar of a battery pack is achieved when the spring is pressed down.

In another embodiment, the elastic member is a spring plate, wherein a first end of the spring plate is connected to the busbar connecting portion 323, and a second end of the spring plate is connected to the sliding connector holder 310. Because the cylinder sectional area of the busbar connecting part 323 is larger than that of the middle part 322, a section exists at the joint of the two, the first end of the spring piece can be abutted against the section, the hard force applied when the spring piece is pressed down is adjusted to be soft force, the probe is prevented from being damaged by overlarge pressure, and therefore reliable contact between the probe and the busbar of the battery pack is achieved when the spring piece is pressed down.

In one embodiment, the battery pack is a battery module, and the battery module includes end plates at both ends of a battery stacking direction (a length direction of the battery module), and the support beam is connected to the end plates so that the battery pack charge adjusting device can be mounted on the battery module. The supporting beam can be connected to the end plate in a clamping or gluing mode, preferably, the bottom of the supporting beam is provided with a positioning hole 240, the positioning hole 240 correspondingly arranged is penetrated through by a long screw rod, the end plate positioning hole is formed in the end plate, the width adjusting mechanism 20 is connected with the battery module, so that after the positions of the length adjusting mechanism and the width adjusting mechanism are determined according to the specification of the battery module, the battery pack charge adjusting device is fixed above the battery module, and looseness is prevented.

In another embodiment, the battery pack is a battery pack, and the battery pack includes a plurality of battery compartments, and the support beam is connected to a frame of the battery compartments to fix the battery pack charge adjusting device. The battery pack comprises a plurality of batteries and a lower box body, a plurality of beams are arranged at the bottom of the lower box body and used for forming a battery compartment, and the batteries are directly placed in the battery compartment.

In summary, when the battery pack charge adjusting device provided by the utility model is used for carrying out charge adjustment on the battery pack, the length adjusting mechanism and the width adjusting mechanism are adjusted to be erected above the battery pack and fixed, the probe adjusting mechanism is adjusted to enable the probe to slide to the position of the battery to be adjusted, the probe is pressed downwards to enable the probe to be abutted against the pole column of the battery, the charge and discharge machine is switched on, and the battery to be adjusted is charged and discharged.

Compared with the prior art, the utility model has the following advantages:

the battery pack is directly erected above the battery pack, so that the assembly and disassembly are more convenient; the battery pack can adapt to battery packs with different lengths and widths, and the repeated utilization rate is high; the multiple probes can slide, so that the probes can be matched with battery packs with different parallel core numbers, and the execution efficiency is higher; the middle part of the probe is provided with the elastic part, so that the hard pressure applied to the probe can be adjusted to be stable and soft, and the probe is prevented from being damaged due to overlarge pressure; aiming at the battery module which is assembled in the box, the battery pack charge adjusting device can be fixed by providing the module end plate positioning hole, the battery module does not need to be taken out again, the labor is saved, and the adjusting efficiency is improved; when the charge regulation is carried out, the operation is simple.

In the description of the present application, it should be noted that the terms "upper", "inner", "outer", etc. indicate orientations or positional relationships based on an operation state of the present application, and are only for convenience of describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.

In the description of the present application, it is to be noted that the terms "mounted," "connected," and "connected" are to be construed broadly unless otherwise explicitly stated or limited. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

The present application has been described above with reference to preferred embodiments, but these embodiments are merely exemplary and merely illustrative. On the basis of the above, the present application can be subjected to various substitutions and improvements, and the substitutions and the improvements are all within the protection scope of the present application.

Claims

1. A battery pack charge adjustment device, comprising:

2. The battery pack charge adjustment device according to claim 1, wherein the length adjustment mechanism includes an adjustment beam that is extendable and retractable in a length direction of the battery pack.

3. The battery pack charge adjustment device according to claim 2, wherein the adjustment beam includes a fixed section and a movable section connected to one end of the fixed section, and the movable section is reciprocally movable with respect to the fixed section in a length direction of the battery pack.

4. The battery pack charge adjustment device according to claim 2, wherein the width adjustment mechanism includes two support beams, the two support beams are respectively connected to both ends of the adjustment beam, and the support beams are capable of extending and contracting in a width direction of the battery pack.

5. The battery pack charge adjustment device of claim 4, wherein the support beam comprises a first support arm, a second support arm, and a connection sleeve;

the connecting sleeve is a hollow cylindrical structure with two open ends and is connected to the end face of the adjusting beam;

the first end of first support arm inserts the first end of adapter sleeve, the first end of second support arm inserts the second end of adapter sleeve, just first support arm with the second support arm can be followed the axial of adapter sleeve is in opposite directions or moves dorsad.

6. The battery pack charge adjustment device according to claim 1, wherein the battery pack is a battery module, and the battery module includes end plates at both ends in a battery stacking direction, and the width adjustment mechanism is connected to the end plates.

7. The battery pack charge adjusting device according to claim 6, wherein a positioning hole is formed in a bottom of the width adjusting mechanism, the positioning hole is correspondingly formed through a long screw, and an end plate positioning hole is formed in the end plate, and the width adjusting mechanism is connected with the battery module.

8. The battery pack charge adjusting device according to claim 1, wherein the battery pack is a battery pack, the battery pack includes a plurality of battery compartments, and the width adjusting mechanism is connected to a frame of the battery compartments.

9. The battery pack charge adjustment device according to any one of claims 1 to 8, wherein the probe includes a charging connection portion, a bus bar connection portion, and an intermediate portion, the charging connection portion being connected to an upper end of the intermediate portion, the bus bar connection portion being connected to a lower end of the intermediate portion;

the charging connecting part, the busbar connecting part and the middle part are all cylinders;

wherein a sectional area of the bus bar connection part is larger than a sectional area of the intermediate part.

10. The battery pack charge adjustment device of claim 9, wherein the probe adjustment mechanism further comprises a resilient member, a first end of the resilient member is connected to the bus bar connection section, and the other end of the resilient member is connected to the slide connection section, the resilient member being configured to drive the bus bar connection section against the bus bar of the battery pack.