Adjustable battery module and power supply device

Abstract

The utility model provides an adjustable battery module and a power supply device, and solves the problems of tedious operation, long consumed time, wire waste and the like in the adjustment of the connection sequence of single batteries in the existing battery pack. The battery pack comprises a battery box, a plurality of single batteries are arranged in the battery box, each single battery is provided with a positive electrode end and a negative electrode end, the positive electrode end of any single battery is conductively connected with the negative electrode end of another single battery through a telescopic mechanism, the telescopic mechanism comprises a telescopic section module, and the two ends of the telescopic section module are connected with universal head modules. And the universal head module is connected with the positive electrode end / negative electrode end of the battery monomer. The threaded structure of the conductive metal wire is matched with the corrugated pipe to form an adjustable design, so that the connection distance between the battery monomers can be flexibly adjusted according to actual requirements to adapt to application scenes with different sizes and shapes, meanwhile, the sequence of the battery monomers can be conveniently changed, and the adjustment applicability and the adjustment flexibility of the module are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of batteries, in particular to an adjustable battery module and a power supply device. Background Art

[0002] The characteristic of portable battery box is that it is easy to carry. The stored electricity can be used as temporary lighting, vehicle starting power supply, daily electricity, etc. to meet various temporary emergency power needs. It is safe, portable, and can meet various usage conditions through external series and parallel connection.

[0003] Battery modules or battery packs are composed of multiple single cells that are electrically connected and combined. Based on the advantages of the batteries themselves, they are being used in more and more fields, especially the current new energy vehicles, which have a huge demand for battery modules or battery packs.

[0004] The combination of battery modules or battery packs on the market is: multiple single cells are placed in a designated position, and then the single cells are connected in series or in parallel through wires of different colors, and finally a total positive electrode and a total negative electrode are led out. That is, the length of the connecting wires between each single cell is fixed, and the connection layout is fixed. After the battery module has been used for a period of time, the power supply effect decreases. The power supply effect can be improved or restored by changing the order of connecting the single cells. Once the connection order of the single cells needs to be readjusted, the connecting wires between all the single cells need to be removed, and the wires need to be replaced because the length of the wires is not enough; or after removing the wire connection, the arrangement order of the single cells is readjusted, and then reconnected; either method has the problems of cumbersome operation, long time consumption, and waste of wires. Utility Model Content

[0005] The purpose of the utility model is to solve the above problems in the prior art and to provide an adjustable battery module and a power supply device.

[0006] The purpose of the utility model can be achieved through the following technical solutions: an adjustable battery module, including a battery box, wherein a plurality of battery cells are arranged in the battery box, the battery cells have a positive terminal and a negative terminal, the positive terminal of any battery cell is conductively connected to the negative terminal of another battery cell through a telescopic mechanism, the telescopic mechanism includes a telescopic section module, both ends of the telescopic section module are connected to a universal head module, and the universal head module is connected to the positive terminal / negative terminal of the battery cell.

[0007] In the above-mentioned adjustable battery module, the universal head module includes a spherical shell, a conductive ball is arranged in the spherical shell to form a rotating connection, a through hole is opened at the bottom of the spherical shell, and the positive / negative terminal of the battery cell extends through the through hole to contact the conductive ball.

[0008] In the above-mentioned adjustable battery module, the spherical shell has an opening for assembling the conductive ball, and a clamping edge is arranged on the inner periphery of the opening, and the clamping edge contacts the outer wall of the conductive ball to form a sliding connection.

[0009] In the above-mentioned adjustable battery module, a mounting plate is fixed to the outside of the spherical shell, a mounting hole is provided on the mounting plate, a corresponding threaded hole is provided on the battery cell, the mounting hole of the mounting plate is connected to the threaded hole, and a screw penetrates the mounting hole and extends into the threaded hole to form a fastened assembly.

[0010] In the above-mentioned adjustable battery module, the telescopic section module includes a conductive metal wire, the outer circumference of the conductive metal wire is covered with an insulating sleeve, the conductive metal wire is bent along a spiral line to form telescopic elasticity, and the outer part of the conductive metal wire is connected to a corrugated tube.

[0011] In the above-mentioned adjustable battery module, the end of the conductive metal wire is welded and fixedly connected to the conductive ball; a hemispherical cover is provided at the pipe mouth of the corrugated tube, and the hemispherical cover is sleeved on the outer periphery of the spherical shell, and a sealing ring is sandwiched between the hemispherical cover and the spherical shell to form a sliding connection.

[0012] In the above-mentioned adjustable battery module, the battery box includes a box body with a top opening, the top opening of the box body is covered with a box cover, the inner periphery of the box cover is fixed with a sealing ring, and the sealing ring is closely connected with the outer wall of the box body.

[0013] In the above-mentioned adjustable battery module, the positive electrode terminal and the negative electrode terminal are arranged on the side wall of the box body.

[0014] A power supply device comprises the above-mentioned adjustable battery module.

[0015] Compared with the prior art, the adjustable battery module and power supply device have the following beneficial effects:

[0016] 1. Adjustable design: The threaded structure of the conductive metal wire and the bellows form an adjustable design, which can flexibly adjust the connection distance between battery cells according to actual needs, adapt to application scenarios of different sizes and shapes, and conveniently change the order of battery cells, thereby improving the adaptability and flexibility of the module.

[0017] 2. Reliable conductive connection: The telescopic mechanism is used to achieve conductive connection between battery cells, making the connection more reliable and stable. The spherical shell and conductive ball design of the universal head module ensure good conductive performance, and reliable conductive contact between the electrode and the conductive ball can be achieved at any rotation angle.

[0018] 3. Safety and stability: The spherical shell is made of plastic material, which can avoid electrical conduction and reduce the potential safety hazards caused by battery short circuit. The conductive ball is made of conductive metal to ensure good conductivity. The spherical shell protects the conductive ball and improves the stability and reliability of the module.

[0019] 4. Easy to install: The design of mounting plates and threaded holes makes installation easier and faster, and improves adjustment and assembly efficiency.

[0020] 5. Sealed protection: It adopts a box body and a box cover structure with a sealing ring inside to form an internal sealed space, which provides effective protection for the battery cells, reduces the impact of external factors on the battery, and extends the battery life.

[0021] In summary, the utility model improves the flexibility, reliability and safety of the battery module through innovative design and reasonable structure, while reducing the manufacturing cost, and has high practical value and market competitiveness. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a three-dimensional structural diagram of the adjustable battery module.

[0023] Figure 2 This is an internal diagram of the electrical connection structure in the adjustable battery module.

[0024] In the figure, 1, battery box; 1a, positive terminal; 1b, negative terminal; 2, battery cell; 3, spherical shell; 4, mounting plate; 5, conductive ball; 6, conductive metal wire; 7, bellows. DETAILED DESCRIPTION

[0025] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0026] Embodiment 1

[0027] like Figures 1 to 2 As shown, the adjustable battery module includes a battery box 1, in which a plurality of battery cells 2 are arranged, and the battery cells 2 have a positive terminal and a negative terminal. The positive terminal of any battery cell 2 is conductively connected to the negative terminal of another battery cell 2 through a telescopic mechanism. The telescopic mechanism includes a telescopic section module, both ends of the telescopic section module are connected to a universal head module, and the universal head module is connected to the positive terminal / negative terminal of the battery cell 2.

[0028] The universal head module includes a spherical shell 3, in which a conductive ball 5 is arranged to form a rotational connection. A through hole is provided at the bottom of the spherical shell 3, and the positive terminal / negative terminal of the battery cell 2 extends through the through hole to contact the conductive ball 5. The spherical shell 3 is made of plastic material to avoid conductivity. The conductive ball 5 is made of conductive metal to contact the positive terminal / negative terminal for conductivity. The spherical shell 3 and the conductive ball 5 have a suitable matching gap, which can ensure that the conductive ball 5 can rotate freely in the spherical shell 3 and can also ensure that the conductive ball 5 can contact the positive terminal / negative terminal when it rotates to any angle.

[0029] The spherical shell 3 has an opening for assembling the conductive ball 5. A clamping edge is arranged on the inner periphery of the opening, and the clamping edge contacts the outer wall of the conductive ball 5 to form a sliding connection. The clamping edge and the spherical shell 3 are integrally injection molded, and the clamping edge is used to restrict the conductive ball 5 to rotate only in the spherical shell 3, thereby preventing the conductive ball 5 from being misplaced or separated from the spherical shell 3, and further ensuring good conductive contact between the conductive ball 5 and the positive terminal / negative terminal.

[0030] The mounting plate 4 is fixed to the outside of the spherical shell 3, and a mounting hole is provided on the mounting plate 4. A threaded hole is correspondingly provided on the battery cell 2. The mounting hole of the mounting plate 4 corresponds to the threaded hole, and a screw penetrates the mounting hole and extends into the threaded hole to form a fastening assembly. The mounting plates 4 are symmetrically arranged on both sides of the spherical shell 3, and the mounting plates 4 and the spherical shell 3 are integrally injection molded. Threaded holes are symmetrically arranged on both sides of the positive terminal / negative terminal. The universal head module is fixed to the battery cell 2 by screwing in the screws.

[0031] The telescopic section module includes a conductive metal wire 6, the outer periphery of the conductive metal wire 6 is covered with an insulating sleeve, the conductive metal wire 6 is bent along a spiral line to form a telescopic elasticity, and the outer sleeve of the conductive metal wire 6 is connected to a bellows 7. The bellows 7 is made of insulating materials such as plastics, and the bellows 7 uses the softness of the folded part to provide a telescopic length variable. The conductive metal wire 6 provides a telescopic length variable through a spiral structure. In this way, the conductive metal wire 6 and the bellows 7 are telescopically variable at the same time to achieve connections of different distances.

[0032] The end of the conductive wire 6 is welded and fixedly connected to the conductive ball 5; a semi-spherical cover is arranged at the pipe opening of the corrugated tube 7, and the semi-spherical cover is sleeved on the outer periphery of the spherical shell 3, and a sealing ring is sandwiched between the semi-spherical cover and the spherical shell 3 to form a sliding connection. The conductive wire 6 and the conductive ball 5 are welded with conductive solder. A sealing ring is fixedly arranged on the inner periphery of the cover opening of the semi-spherical cover, and the gap between the semi-spherical cover and the spherical shell is sealed by the sealing ring, which also plays an insulating role.

[0033] The battery box 1 includes a box body with a top opening, a box cover is provided on the top opening of the box body, a sealing ring is fixed on the inner periphery of the box cover, and the sealing ring is closely connected with the outer wall of the box body. The inner cavity of the box body is used to accommodate a plurality of battery cells 2, and the battery cells 2 are arranged in an array. The box cover and the box body are sealed to form an internal sealed space, thereby protecting the internal battery cells 2.

[0034] The positive terminal 1a and the negative terminal 1b are arranged on the side wall of the box body. After all the battery cells 2 are connected in series, the positive terminal at the head end of the series circuit is connected to the positive terminal 1a through a wire, and the negative terminal at the tail end is connected to the negative terminal 1b through a wire, so as to be used for external power supply connection of the entire battery module.

[0035] Adjustment method of this adjustable battery module:

[0036] When the connection sequence of the single battery needs to be readjusted, it is only necessary to unscrew the screws that need to be changed, lengthen or shorten the conductive wire 6 and the bellows 7, make the universal head module reach a new connection position, and re-tighten the screws to fix it. The positive terminal / negative terminal of the single battery extends into the spherical housing 3 through the through hole, so that the positive terminal / negative terminal contacts the conductive ball 5.

[0037] Embodiment 2

[0038] Based on the first embodiment, the differences of this embodiment are as follows:

[0039] A power supply device comprises the above-mentioned adjustable battery module.

[0040] The specific embodiments described herein are merely examples of the spirit of the utility model. A person skilled in the art of the utility model may make various modifications or supplements to the specific embodiments described or replace them in a similar manner, but will not deviate from the spirit of the utility model or exceed the defined scope. Although the utility model is described and described in detail in the drawings and the foregoing description, such descriptions and descriptions are considered to be illustrative or exemplary rather than restrictive. It should be understood that within the scope of the following claims, changes and modifications may be made by a person of ordinary skill. Specifically, the utility model covers additional embodiments having any combination of features from the above-mentioned different embodiments. In terms of the use of the expression "generally" or "substantially", this patent application should be understood to disclose that these features and values ​​are also fully satisfied, that is, there is no aforementioned characterization as "generally" or "substantially".

[0041] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. An adjustable battery module, comprising a battery box, wherein a plurality of battery cells are arranged in the battery box, wherein the battery cells have a positive terminal and a negative terminal, wherein: The positive terminal of any battery cell is conductively connected to the negative terminal of another battery cell through a telescopic mechanism, wherein the telescopic mechanism includes a telescopic section module, both ends of which are connected to a universal head module, and the universal head module is connected to the positive / negative terminals of the battery cell.

2. The adjustable battery module according to claim 1, characterized in that: The universal head module comprises a spherical shell, a conductive ball is arranged in the spherical shell to form a rotation connection, a through hole is provided at the bottom of the spherical shell, and the positive terminal / negative terminal of the battery cell extends through the through hole to contact the conductive ball.

3. The adjustable battery module according to claim 2, characterized in that: The spherical shell has an opening for assembling the conductive ball. A clamping edge is arranged on the inner periphery of the opening. The clamping edge contacts the outer wall of the conductive ball to form a sliding connection.

4. The adjustable battery module according to claim 2, characterized in that: The outside of the spherical shell is fixed with a mounting plate, the mounting plate is provided with a mounting hole, the battery cell is provided with a corresponding threaded hole, the mounting hole of the mounting plate is connected to the threaded hole, and a screw penetrates the mounting hole and extends into the threaded hole to form a fastening assembly.

5. The adjustable battery module according to claim 2, characterized in that: The telescopic section module comprises a conductive metal wire, the outer circumference of the conductive metal wire is covered with an insulating sleeve, the conductive metal wire is bent along a spiral line to form telescopic elasticity, and the outer part of the conductive metal wire is sleeved with a corrugated tube.

6. The adjustable battery module according to claim 5, characterized in that: The end of the conductive metal wire is welded and fixedly connected to the conductive ball; a semi-spherical cover is arranged at the pipe mouth of the corrugated pipe, the semi-spherical cover is sleeved on the outer periphery of the spherical shell, and a sealing ring is sandwiched between the semi-spherical cover and the spherical shell to form a sliding connection.

7. The adjustable battery module according to claim 1, characterized in that: The battery box comprises a box body with a top opening, a box cover is arranged on the top opening of the box body, a sealing ring is fixed on the inner periphery of the box cover, and the sealing ring is closely connected with the outer wall of the box body.

8. The adjustable battery module according to claim 7, characterized in that: A positive electrode terminal and a negative electrode terminal are arranged on the side wall of the box body.

9. A power supply device, characterized in that: Comprising an adjustable battery module as claimed in any one of claims 1 to 8.

Images