CN211958184U - Switching device and battery charging and discharging system - Google Patents

Abstract

The utility model relates to a battery technology field provides a switching device and battery charge-discharge system. The switching device is used for electrically connecting the electrode of the battery component and the charging and discharging device, and comprises a body and a conductor, wherein the position of the conductor is adjustably arranged on the body, one end of the conductor is used for being electrically connected with the electrode, and the other end of the conductor is used for being electrically connected with the charging and discharging device. The utility model discloses a switching device has realized the electrode through the electric conductor and has been connected with the electricity between the charge-discharge device, through the position that sets up of the fixed electric conductor of body to mistake between electric conductor and the electrode can not appear and break away from, has improved the security of charge-discharge. And because the position of the conductor is adjustably arranged on the body, the position of the conductor can be conveniently adjusted, so that the conductor is reliably connected with the electrode.

Description

Switching device and battery charging and discharging system

Technical Field

The utility model relates to a battery technology field especially relates to a switching device and battery charge-discharge system.

Background

The battery pack is composed of a plurality of single batteries in series-parallel connection, a module wiring harness assembly of the battery pack is connected to a battery pole of the battery, the module wiring harness assembly is only provided with a positive electrode and a negative electrode leading-out support and a collecting interface which are connected with external equipment, and a single string or a plurality of strings of batteries lack an interface which is connected with the external equipment.

When a certain string or strings of battery modules are low (high), it is necessary to charge (discharge) the certain string or strings of voltages individually. At this time, the positive and negative electrode lead-out holders are charged (discharged), and it is impossible to adjust the voltage of one string or several strings to be equal to the voltages of other strings of the battery module.

At present, when a certain string or several strings of battery components are charged and discharged, the pointed tip clamp is adopted to be fixed on the module wire harness component, the reliability is poor, the operability is poor, the risk of falling or slipping exists, and the safety is poor.

SUMMERY OF THE UTILITY MODEL

The utility model provides a switching device and battery charge-discharge system to an electrode and the reliable electricity of charge-discharge device are connected for realizing battery pack.

According to the utility model discloses a first aspect provides a switching device for the electrode and the charge-discharge device of electricity connection battery pack, switching device includes:

a body;

the electric conductor is adjustably arranged on the body, one end of the electric conductor is used for being electrically connected with the electrode, and the other end of the electric conductor is used for being electrically connected with the charging and discharging device.

The utility model discloses switching device has realized the electrode through the electric conductor and has been connected with the electricity between the charge-discharge device, through the position that sets up of the fixed electric conductor of body to mistake between electric conductor and the electrode can not appear and break away from, has improved the security of charge-discharge. And because the position of the conductor is adjustably arranged on the body, the position of the conductor can be conveniently adjusted, so that the conductor is reliably connected with the electrode.

According to the utility model discloses a second aspect provides a battery charge-discharge system, including foretell switching device.

The utility model discloses battery charge and discharge system has realized the electrode through switching device's electric conductor and has been connected with the electricity between the charge and discharge device, through the position that sets up of body fixed conductor to mistake between electric conductor and the electrode can not appear and break away from, has improved the security of charge and discharge. And because the position of the conductor is adjustably arranged on the body, the position of the conductor can be conveniently adjusted, so that the conductor is reliably connected with the electrode.

Drawings

The various objects, features and advantages of the present invention will become more apparent from the following detailed description of the preferred embodiments of the invention, when considered in conjunction with the accompanying drawings. The drawings are merely exemplary of the invention and are not necessarily drawn to scale. In the drawings, like reference characters designate the same or similar parts throughout the different views. Wherein:

FIG. 1 is a schematic illustration of a transition device according to an exemplary embodiment;

FIG. 2 is a schematic cross-sectional view of an adapter according to an exemplary embodiment;

FIG. 3 is a schematic illustration of a transition device according to another exemplary embodiment;

fig. 4 is a schematic cross-sectional view of an adapter according to another exemplary embodiment.

The reference numerals are explained below:

10. a body; 11. a suction cup; 12. a connecting plate; 13. a support plate; 14. a fixing plate; 15. a first slide hole; 20. an electrical conductor; 21. a conductive post; 22. a connection terminal; 23. a conductive sheet; 30. a first fixed component; 31. a first flat pad; 32. a first nut; 40. a second fixed component; 41. a second flat pad; 42. a second nut; 50. a third fixed component; 51. a third flat pad; 52. a third nut; 60. a fourth fixed component; 61. a fourth flat pad; 62. a fourth nut; 70. a fifth stationary component; 71. a fifth flat pad; 72. and a fifth nut.

Detailed Description

Exemplary embodiments that embody features and advantages of the invention are described in detail below. It is to be understood that the invention is capable of other and different embodiments and its several details are capable of modification without departing from the scope of the invention, and that the description and drawings are to be regarded as illustrative in nature and not as restrictive.

In the following description of various exemplary embodiments of the invention, reference is made to the accompanying drawings, which form a part hereof, and in which are shown by way of illustration various exemplary structures, systems, and steps in which aspects of the invention may be practiced. It is to be understood that other specific arrangements of parts, structures, example devices, systems, and steps may be utilized and structural and functional modifications may be made without departing from the scope of the present invention. Moreover, although the terms "over," "between," "within," and the like may be used in this specification to describe various example features and elements of the invention, these terms are used herein for convenience only, e.g., in accordance with the orientation of the examples in the figures. Nothing in this specification should be construed as requiring a specific three dimensional orientation of structures to fall within the scope of the invention.

An embodiment of the utility model provides an adapter device for the electrode and the charge-discharge device of electricity connection battery pack please refer to fig. 1 to fig. 4, and adapter device includes: a body 10; and the conductor 20, the conductor 20 is arranged on the body 10 in a position adjustable manner, one end of the conductor 20 is used for being electrically connected with the electrode, and the other end of the conductor 20 is used for being electrically connected with the charging and discharging device.

The utility model discloses a switching device has realized the electrode through electric conductor 20 and has been connected with the electricity between the charge-discharge device, through the position that sets up of body 10 fixed conductor 20 to the mistake between electric conductor 20 and the electrode can not appear breaking away from, has improved the security of charge-discharge. And the position of the conductor 20 can be conveniently adjusted because the conductor 20 is adjustably arranged on the body 10, thereby being reliably connected with the electrode.

The battery assembly may be a battery module, a battery pack, or the like, and a battery structure including a plurality of battery cells and requiring independent charging and discharging of some of the battery cells is emphasized. The electrode of the battery assembly can be understood as a battery post of the battery, and the electric conductor 20 can be directly and electrically connected with the battery post according to actual conditions during specific charging and discharging, namely the electric conductor 20 is in contact with the battery post. Or, the module harness assembly is connected with the battery post of each battery, and when the battery is charged or discharged, the conductor 20 is contacted with the module harness assembly, so that the conductor 20 is electrically connected with the battery post through the module harness assembly.

In one embodiment, the body 10 may be disposed on a battery assembly, i.e., the body 10 is disposed on the battery assembly when used to charge a portion of the batteries of the battery assembly. Alternatively, the body 10 may be disposed on other supporting structures, for example, a structure for supporting a battery assembly, as long as the relative position of the body 10 and the battery assembly is fixed, and after the conductive body 20 is adjusted to be connected with the electrode, the conductive body 20 may be fixed, so as to ensure the reliable connection of the conductive body 20 and the electrode.

In one embodiment, the body 10 is an insulating resin plate, which has good insulating property and light weight.

In one embodiment, the electrical conductor 20 is positionally adjustably disposed on the body 10, i.e., the electrical conductor 20 is movable in both horizontal and vertical directions relative to the body 10.

In one embodiment, as shown in fig. 2 and 4, the body 10 is provided with a first sliding hole 15, and the conductive body 20 is disposed through the first sliding hole 15 and movably disposed along the extending direction of the first sliding hole 15 and the direction perpendicular to the extending direction, so as to ensure that the conductive body 20 is electrically connected to the corresponding electrode, and can adapt to the electrical connection with the electrodes at different positions.

Note that, when the extending direction of the first via hole 15 is a horizontal direction, that is, when the conductor 20 moves in the horizontal direction, it is a matter of searching for an electrode that needs to be electrically connected to the conductor 20. And the direction perpendicular to the extending direction is a vertical direction, that is, when the conductive body 20 moves in the vertical direction, the conductive body moves above the electrode in a direction approaching or separating from the electrode. In the process of connecting the conductive body 20 to the electrodes, it is generally necessary to move the conductive body 20 in horizontal and vertical directions so as to connect to the corresponding electrodes.

In one embodiment, the first sliding hole 15 is a strip-shaped hole, and further, the first sliding hole 15 is a kidney-shaped hole or a rectangular hole.

In one embodiment, a first slide hole 15 is provided on the support plate 13, and the conductive body 20 passes through the first slide hole 15.

In one embodiment, as shown in fig. 1 and 3, the body 10 is provided with a suction cup 11 for fixing the body 10, so as to prevent the conductor 20 from shaking due to shaking of the body 10.

In one embodiment, the suction cup 11 may be used to adhere to a battery assembly; wherein, electric conductor 20 sets up with sucking disc 11 interval to can guarantee that sucking disc 11 adsorbs on battery pack steadily, avoid electric conductor 20 to appear rocking the condition such as.

In one embodiment, the number of the suction cups 11 is at least two, and at least two suction cups 11 are spaced apart from each other on the body 10.

In one embodiment, the suction cup 11 is used to adhere to a side plate of the battery assembly.

In one embodiment, as shown in fig. 2 and 4, the body 10 includes: the connecting plate 12 is provided with the sucker 11; a support plate 13, wherein the support plate 13 is connected with the connecting plate 12, and the electric conductor 20 is arranged on the support plate 13; wherein, a first preset included angle is formed between the connecting plate 12 and the supporting plate 13, so as to adapt to the overall structure of the battery assembly, thereby ensuring that the connecting plate 12 is stably arranged on the body 10 through the suction cup 11, and the conductor 20 on the supporting plate 13 can be electrically connected with the electrode.

In one embodiment, the supporting plate 13 and the connecting plate 12 form an L-shaped structure, that is, the connecting plate 12 is fixed to a side plate of the battery module by the suction cups 11, and the supporting plate 13 is located above the battery module, so that the conductive body 20 on the supporting plate 13 is electrically connected to an electrode located at the top end of the battery module.

In one embodiment, the connecting plate 12 is provided with mounting holes, and the suction cup 11 is mounted on the connecting plate 12 through the mounting holes. The sucking disc 11 can be 2, and 2 sucking discs 11 reach two points and decide an effect on a line, and can increase adsorption strength, avoid the landing. The sucking disc 11 is adsorbed on the side plate of the battery pack through atmospheric pressure, and the surface of the side plate is not damaged.

In one embodiment, as shown in fig. 3 and 4, the body 10 further includes: the fixing plate 14 is connected with one end of the connecting plate 12 far away from the supporting plate 13, and the fixing plate 14 is arranged opposite to the supporting plate 13; wherein, have the second and predetermine the contained angle between connecting plate 12 and the fixed plate 14, fixed plate 14 can be used for the fixed of body 10 to this balanced vertical direction's power increases vertical direction's bearing strength.

In one embodiment, the fixing plate 14 can be clamped to the battery assembly, and the conductive body 20 is spaced apart from the fixing plate 14, so as to avoid interference and other problems.

It should be noted that the connecting plate 12 and the fixing plate 14 form an L-shaped structure, that is, the connecting plate 12 has a supporting plate 13 and a fixing plate 14 at two ends, respectively, the supporting plate 13 is used for supporting the electric conductor 20, the fixing plate 14 can be further connected to the battery assembly, and the body 10 can be stably connected to the battery assembly by combining with the suction cup 11 on the connecting plate 12.

In one embodiment, the length of the supporting plate 13 is greater than that of the fixing plate 14, the conductive body 20 is located above the fixing plate 14, and the first predetermined included angle and the second predetermined included angle are right angles, so as to adapt to the external shape of the battery module, ensure that the adapter can be conveniently disposed on the battery module, and ensure that the conductive body 20 can be reliably electrically connected with the electrode.

In one embodiment, the conductive body 20 is movably disposed with respect to the supporting plate 13, that is, the conductive body 20 is movable along the length direction of the supporting plate 13, so as to ensure that the conductive body 20 is accurately electrically connected to the electrode, and the fixing plate 14 is in engagement with the battery module, so that the length dimension thereof can be short.

In one embodiment, the conductive body 20 is positionally adjustably provided on the body 10, so that the connection between the conductive body 20 and the electrode is accomplished by moving the conductive body 20 after the body 10 is mounted to the battery module.

In one embodiment, as shown in fig. 1 and 2, the adapter further includes: the first fixing component 30, the first fixing component 30 is sleeved on the electric conductor 20 and is used for contacting with one side of the body 10; the second fixing component 40 is sleeved on the electric conductor 20, and is used for contacting with the other side of the body 10; the first fixing component 30 and the second fixing component 40 are both adjustably arranged on the conductor 20 to enable the conductor 20 to have a first state fixed relative to the body 10 and a second state movable relative to the body 10, so that the conductor 20 can be electrically connected with the electrode through movement, and the conductor 20 can be fixed after connection, so that the conductor is prevented from being separated from the electrode.

In one embodiment, as shown in fig. 2 and 4, the first fixing assembly 30 includes a first flat pad 31 and a first nut 32, the first flat pad 31 is in contact with a side of the body 10, and the first nut 32 is in contact with a side of the first flat pad 31 facing away from the body 10.

Correspondingly, the second fixing assembly 40 includes a second flat pad 41 and a second nut 42, the second flat pad 41 being in contact with the other side of the body 10, and the second nut 42 being in contact with the side of the second flat pad 41 facing away from the body 10.

Specifically, by adjusting the position of the first nut 32 and/or the second nut 42, the distance between the first pad 31 and the second pad 41 can be adjusted, thereby achieving the movement or fixation of the conductive body 20 relative to the body 10.

In one embodiment, the electrical conductor 20 comprises a stud, i.e., the first nut 32 and the second nut 42 are both in threaded connection with the electrical conductor 20, and the electrical conductor is fixed or moved by rotating the first nut 32 and the second nut 42, and the electrical conductor 20 drives the first fixing component 30 and the second fixing component 40 to move when the electrical conductor 20 moves.

In one embodiment, as shown in fig. 1-4, the electrical conductor 20 comprises: the conductive column 21, the conductive column 21 is arranged on the body 10, and one end of the conductive column 21 is used for electrically connecting with the electrode; and a connection terminal 22, wherein the connection terminal 22 is disposed at the other end of the conductive column 21, and the connection terminal 22 is used for electrically connecting with the charging and discharging device, thereby facilitating the electrical connection between the conductor 20 and the electrode and the charging and discharging device.

In one embodiment, the connection terminal 22 is a "U" shaped nose terminal or an "O" shaped nose terminal, or other type of terminal, which is not limited herein, as long as the electrical connection with the charging and discharging device is ensured. For example, the connection terminal 22 may be a wire.

In one embodiment, as shown in fig. 1 and 3, the adapter further includes: the third fixing component 50 is sleeved on the conductive column 21, and is used for contacting one side of the connecting terminal 22; the fourth fixing component 60 is disposed on the conductive pillar 21, and the fourth fixing component 60 is used for contacting with the other side of the connection terminal 22, so that the connection terminal 22 is stably disposed on the conductive pillar 21 through the third fixing component 50 and the fourth fixing component 60.

In one embodiment, as shown in fig. 2 and 4, the third fixing assembly 50 includes a third pad 51 and a third nut 52, the third pad 51 is in contact with a side of the connection terminal 22, and the third nut 52 is in contact with a side of the third pad 51 facing away from the connection terminal 22.

Correspondingly, the fourth fixing assembly 60 includes a fourth flat pad 61 and a fourth nut 62, the fourth flat pad 61 is in contact with the other side of the connection terminal 22, and the fourth nut 62 is in contact with the side of the fourth flat pad 61 facing away from the connection terminal 22.

Specifically, by adjusting the position of the third nut 52 and/or the fourth nut 62, the distance between the third flat pad 51 and the fourth flat pad 61 can be adjusted, so that the connection position of the connection terminal 22 with the conductive post 21 can be adjusted, and the connection terminal 22 can be detached from the conductive post 21.

In one embodiment, the conductive posts 21 are made of a copper material, i.e., copper is used as the conductive medium.

In one embodiment, the conductive column 21 is a bolt, and a bolt head of the bolt is used for electrically connecting with the electrode, so that the structure is simple, and the stability of electrical connection with the electrode is good.

Bolts having different cross-sectional areas may be exchanged depending on the magnitude of the current.

In one embodiment, the bolt may be a copper bolt.

In one embodiment, the first nut 32, the second nut 42, the third nut 52 and the fourth nut 62 are all sleeved on the bolt and are in threaded connection with the bolt, and the fixing or releasing of the corresponding components is realized by adjusting the corresponding positions.

In one embodiment, as shown in fig. 2 and 4, the conductive sheet 23 is disposed at an end of the conductive post 21 away from the connection terminal 22, and the conductive sheet 23 is used for electrically connecting with the electrode, so as to increase the contact area and ensure stable electrical connection.

In one embodiment, the conductive post 21 is a stud.

In one embodiment, the conductive sheet 23 is a copper planar circular sheet, the conductive sheet 23 is connected to the conductive post 21 by soldering,

it should be noted that, the combination of the stud and the conductive plate 23 is equivalent to a bolt, but the bolt belongs to an integral structure, and the stud and the conductive plate 23 are formed independently and then connected by welding and other methods, both of which can be used for realizing the electrical connection of the charging and discharging device and the electrode, but there is a difference in specific structural style, corresponding selection can be performed according to the actual use environment, the area and the thickness of the conductive plate 23 can be designed according to specific requirements, and when the bolt selects a standard bolt, the bolt head of the bolt is relatively fixed, but the bolt head with a corresponding size processed according to the use requirement is not excluded.

In one embodiment, as shown in fig. 1 and 3, the adapter further includes: and the fifth fixing component 70, the fifth fixing component 70 is sleeved on the electric conductor 20 and is used for contacting the conducting strip 23, so as to press the conducting strip 23 on the electrode.

In one embodiment, as shown in fig. 2 and 4, the fifth fixing assembly 70 includes a fifth flat pad 71 and a fifth nut 72, the fifth flat pad 71 is in contact with a side of the conductive sheet 23 facing the body 10, and the fifth nut 72 is in contact with a side of the fifth flat pad 71 facing away from the conductive sheet 23, so that when the fifth nut 72 is rotated, the conductive sheet 23 is driven to be in sufficient contact with the module harness assembly of the battery module, and the occurrence of heat ablation or burning due to insufficient contact is avoided.

An embodiment of the utility model also provides a battery charge-discharge system, including foretell switching device.

The utility model discloses a battery charge and discharge system has realized the electrode through switching device's electric conductor 20 and has been connected with the electricity between the charge and discharge device, through the position that sets up of body 10 fixed conductor 20 to the mistake between electric conductor 20 and the electrode can not appear and break away from, has improved the security of charging and discharging. And the position of the conductor 20 can be conveniently adjusted because the conductor 20 is adjustably arranged on the body 10, thereby being reliably connected with the electrode.

In one embodiment, the battery charging and discharging system further includes a battery assembly.

In practical application, two switching devices are needed to adjust each battery in a battery pack to the same voltage level, wherein one switching device is fixed on the negative electrode of a certain string of batteries, and the other switching device is fixed on the positive electrode of the corresponding string to be adjusted. The output positive terminal and the output negative terminal of the charge/discharge device are respectively pressed against the conductors 20 of the corresponding relay devices. And after the connection is finished, the charging and discharging device is started to charge or discharge without errors in the detection. The adapter is an independent structure relative to the battery pack and can be detached after use.

Along with electric automobile's rapid development, battery pack can more and more be put into market, because the battery uniformity receives the influence of a plurality of aspects such as technology, material, processing procedure, the poor problem of battery uniformity still can exist for a long time, consequently in the use, certain string or several strings of low or high problems of voltage can never appear in the module, in later maintenance or maintenance process, adopt the utility model discloses a switching device alone to certain string or several strings of batteries charge and discharge, then efficiency will improve greatly, solves the not enough or pressure differential of continuation of the journey problem of reporting to the police repeatedly fast, can improve user's acceptance and satisfaction.

The utility model discloses switching device, body 10 adopt insulating resin plate, and insulating properties is good, and the quality is lighter. The fixing of the body 10 and the battery pack is realized by the suction cup 11, so that the stability is better, and the side plate of the battery pack is not damaged after the rotating device is removed. And the parts are fixed by nuts, so that the disassembly and the carrying are convenient. The electrical conductors 20 are movable relative to the body 10 to enable accurate positioning of the electrical conductors 20 on the modular wire harness assembly.

Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. The present invention is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and exemplary embodiments be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.

It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims (10)

1. An adaptor device for electrically connecting an electrode of a battery pack and a charging and discharging device, the adaptor device comprising:

a body (10);

the electric conductor (20) is arranged on the body (10) in a position adjustable mode, one end of the electric conductor (20) is used for being electrically connected with the electrode, and the other end of the electric conductor (20) is used for being electrically connected with the charging and discharging device.

2. The adapter device according to claim 1, wherein the body (10) is provided with a first sliding hole (15), and the conductive body (20) is disposed in the first sliding hole (15) and movably disposed along an extending direction of the first sliding hole (15) and a direction perpendicular to the extending direction.

3. A device according to claim 1, characterized in that a suction cup (11) is provided on said body (10).

4. A device according to claim 3, characterized in that said body (10) comprises:

the connecting plate (12), the sucking disc (11) is arranged on the connecting plate (12);

the supporting plate (13), the supporting plate (13) is connected with the connecting plate (12), and the electric conductor (20) is arranged on the supporting plate (13);

wherein, a first preset included angle is formed between the connecting plate (12) and the supporting plate (13).

5. The transition device according to claim 4, characterized in that the body (10) further comprises:

the fixing plate (14) is connected with one end, far away from the supporting plate (13), of the connecting plate (12), and the fixing plate (14) is arranged opposite to the supporting plate (13);

wherein, a second preset included angle is formed between the connecting plate (12) and the fixing plate (14).

6. The transition device according to claim 1, further comprising:

the first fixing component (30), the first fixing component (30) is sleeved on the electric conductor (20) and is used for contacting one side of the body (10);

the second fixing component (40), the second fixing component (40) is sleeved on the electric conductor (20) and is used for contacting with the other side of the body (10);

wherein the first fixing component (30) and the second fixing component (40) are both arranged on the conductor (20) in a position-adjustable manner, so that the conductor (20) has a first state which is fixed relative to the body (10) and a second state which is movable relative to the body (10).

7. Switching device according to one of claims 1 to 6, characterized in that the electrical conductor (20) comprises:

the conductive column (21), the conductive column (21) is set up on the said body (10), one end of the said conductive column (21) is used for connecting electrically with the said electrode;

a connection terminal (22), the connection terminal (22) is arranged at the other end of the conductive column (21), and the connection terminal (22) is used for being electrically connected with the charging and discharging device.

8. The adapter according to claim 7, characterized in that the end of the conductive post (21) remote from the connection terminal (22) is provided with a conductive pad (23), the conductive pad (23) being used for electrical connection with the electrode.

9. A battery charge and discharge system comprising the adaptor device according to any one of claims 1 to 8.

10. The battery charging and discharging system according to claim 9, characterized in that the battery charging and discharging system further comprises a battery assembly on which the body (10) of the adapter is disposed.

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