阅读说明：本技术 一种六电芯串联的电池组 (Six-cell series battery pack ) 是由 杨泽州 于 2021-02-03 设计创作，主要内容包括：本发明属于电池技术领域,具体涉及一种六电芯串联的电池组,包括六个电芯本体、板体以及印刷在板体上的电路,电路包括电芯保护芯片、热敏电阻、第一电容、第一电极、第二电极和六个电芯连接单元,六个电芯连接单元依次串联,热敏电阻、第一电极、六个电芯连接单元均与电芯保护芯片电连接,电芯保护芯片通过第一电容与第二电极电连接,六个电芯本体与六个电芯连接单元一一对应通过引线电连接,电芯连接单元包括三极管、第一电阻、第二电容和两个第二电阻。该电路板能够同时对六电芯进行串联工作,便于批量化生产,使用方便,同时有效地避免了因电线缠绕而发生的短路,提高了安全性能以及电池组的电学性能。(The invention belongs to the technical field of batteries, and particularly relates to a six-cell series battery pack which comprises six cell bodies, a plate body and a circuit printed on the plate body, wherein the circuit comprises a cell protection chip, a thermistor, a first capacitor, a first electrode, a second electrode and six cell connecting units, the six cell connecting units are sequentially connected in series, the thermistor, the first electrode and the six cell connecting units are all electrically connected with the cell protection chip, the cell protection chip is electrically connected with the second electrode through the first capacitor, the six cell bodies and the six cell connecting units are correspondingly electrically connected through leads one by one, and the cell connecting units comprise triodes, first resistors, second capacitors and two second resistors. The circuit board can simultaneously carry out series connection work on six electric cores, is convenient for batch production and convenient to use, effectively avoids short circuit caused by winding of electric wires, and improves safety performance and electrical performance of the battery pack.)

1. The utility model provides a group battery of six electricity core series connection which characterized in that: the battery comprises six battery cell bodies (1), a plate body (2) and a circuit printed on the plate body (2), wherein the circuit comprises a battery cell protection chip, a thermistor, a first capacitor, a first electrode, a second electrode and six battery cell connecting units, the six battery cell connecting units are sequentially connected in series, the thermistor, the first electrode and the six battery cell connecting units are electrically connected with the battery cell protection chip, the battery cell protection chip is electrically connected with the second electrode through the first capacitor, the six battery cell bodies (1) and the six battery cell connecting units are electrically connected through leads (3) in a one-to-one correspondence manner, the battery cell connecting units comprise triodes, first resistors, second capacitors and two second resistors, the first resistors are provided with first connecting terminals and second connecting terminals, and the first connecting terminals are insulated from the second connecting terminals, the first pole of the triode is electrically connected with the battery cell protection chip through one of the second resistors, the second pole of the triode is electrically connected with the first terminal through the other of the second resistors, and the third pole of the triode is electrically connected with the second electrode through the second capacitor.

2. The six-cell series battery pack of claim 1, wherein: the length of the plate body (2) is 391-395 mm.

3. The six-cell series battery pack of claim 1, wherein: the width of the plate body (2) is 20-25 mm.

4. The six-cell series battery pack of claim 1, wherein: the battery core protection chip is CW 1073.

5. The six-cell series battery pack of claim 1, wherein: the thermistor is 103 AT-4.

6. The six-cell series battery pack of claim 1, wherein: the first capacitance is 4.5 uF/50V.

7. The six-cell series battery pack of claim 1, wherein: the triode is MMBT 5401.

8. The six-cell series battery pack of claim 1, wherein: the first resistance is 100R.

9. The six-cell series battery pack of claim 1, wherein: the second capacitance is 0.1 uF.

10. The six-cell series battery pack of claim 1, wherein: the second resistance is 1 k.

Technical Field

The invention belongs to the technical field of batteries, and particularly relates to a battery pack with six battery cells connected in series.

Background

In battery manufacturing, a plurality of battery cells need to be connected in series to form a battery pack and then put into application, and the assembly technology of the plurality of battery cells has a great influence on the working performance of the battery pack.

Among the prior art, the circuit board of application number 201920468916.8's a two section battery series connection balance charge protection can monitor the charging voltage of each battery in the series connection battery, and balanced two battery voltage, make and just close charging when charging at every turn and can both keep equal voltage, it makes the difference bigger and bigger to have avoided the series connection battery to circulate in incessantly charging and discharging because of individual parameter difference, lead to electric core to damage at last or form the potential safety hazard, the circuit of this circuit board can furthest improve the battery matching nature, effectively exert the cycle life of battery, use cost is reduced, improve battery availability factor. However, the circuit board cannot simultaneously carry out series connection work on six electric cores, and cannot meet the requirement of series connection work of the six electric cores.

In view of the above, the related art needs to be perfected.

Disclosure of Invention

The invention aims to: aiming at the defects of the prior art, the battery pack with the six battery cells connected in series is provided, the six battery cells can be simultaneously connected in series, the mass production is convenient, the use is convenient, the short circuit caused by the winding of electric wires is effectively avoided, and the safety performance and the electrical performance of the battery pack are improved.

In order to achieve the purpose, the invention adopts the following technical scheme:

a battery pack with six cells connected in series comprises six cell bodies, a plate body and a circuit printed on the plate body, wherein the circuit comprises a cell protection chip, a thermistor, a first capacitor, a first electrode, a second electrode and six cell connecting units, the six cell connecting units are sequentially connected in series, the thermistor, the first electrode and the six cell connecting units are electrically connected with the cell protection chip, the cell protection chip is electrically connected with the second electrode through the first capacitor, the six cell bodies and the six cell connecting units are electrically connected through leads in a one-to-one correspondence manner, the cell connecting units comprise a triode, a first resistor, a second capacitor and two second resistors, the first resistor is provided with a first connecting terminal and a second connecting terminal, and the first connecting terminal and the second connecting terminal are insulated, the first pole of the triode is electrically connected with the battery cell protection chip through one of the second resistors, the second pole of the triode is electrically connected with the first terminal through the other of the second resistors, and the third pole of the triode is electrically connected with the second electrode through the second capacitor. In practical application, a plurality of auxiliary resistors can be flexibly arranged according to the actual working requirement; the six electric core bodies are respectively in one-to-one correspondence with the six electric core connecting units, the positive pole and the negative pole of each electric core body are respectively in one-to-one correspondence with the first connecting terminal and the second connecting terminal in the adjacent electric core connecting unit, and the first electrode and the second electrode are used as the positive pole and the negative pole which are externally connected, so that the six electric cores are simultaneously connected in series, the difficulty of production and installation is reduced, the mass production is facilitated, the circuit board can simultaneously carry out the series connection work on the six electric cores, the mass production is facilitated, the use is convenient, meanwhile, the short circuit caused by electric wire winding is effectively avoided, and the safety performance and the electric performance of the battery pack are improved.

As an improvement of the six-cell series battery pack, the length of the plate body is 391-395 mm. The structural design is beneficial to reducing the volume of the whole battery pack; in practical application, it is preferable to design a lead hole every 65mm, and the lead hole is surrounded by copper-plated and tin-plated design, so that the lead can be connected with the circuit after passing through the hole.

As an improvement of the six-cell series battery pack, the width of the plate body is 20-25 mm. This structural design is advantageous in reducing the volume of the entire battery pack.

As an improvement of the six-cell series battery pack of the present invention, the cell protection chip is CW 1073. Besides, the battery cell protection chip can be other components which can achieve the same effect, and can be flexibly arranged according to actual conditions.

As an improvement of the six-cell series battery pack, the thermistor is 103 AT-4. Besides, the thermistor can be other components which can achieve the same effect, and can be flexibly arranged according to actual conditions.

As an improvement of the six-cell series battery pack, the first capacitance is 4.5 uF/50V. Besides, the first capacitor can be other capacitance values which can achieve the same effect, and can be flexibly set according to actual conditions.

As an improvement of the six-cell series battery pack of the present invention, the triode is MMBT 5401. Besides, the triode can be other components which can achieve the same effect and can be flexibly arranged according to actual conditions.

As an improvement of the battery pack with six cells connected in series according to the present invention, the first resistance is 100R. Besides, the first resistor can be other resistances which can achieve the same effect, and can be flexibly set according to actual conditions.

As an improvement of the six-cell series battery pack of the present invention, the second capacitance is 0.1 uF. Besides, the second capacitor can be other capacitance values which can achieve the same effect, and can be flexibly set according to actual conditions.

As an improvement of the six-cell series battery pack according to the present invention, the second resistance is 1 k. Besides, the second resistor can be other resistance values which can achieve the same effect, and can be flexibly set according to actual conditions.

Compared with the prior art, the invention has the beneficial effects that: in practical application, six electric core bodies are in one-to-one correspondence with six electric core connecting units simultaneously, positive and negative poles of the electric core bodies are connected with first connecting terminals and second connecting terminals in adjacent electric core connecting units in one-to-one correspondence, first electrodes and second electrodes are used as positive and negative poles which are externally connected, so that the six electric cores are simultaneously subjected to series connection, the difficulty of production and installation is reduced, mass production is facilitated, the circuit board can simultaneously perform series connection on the six electric cores, mass production is facilitated, the use is convenient, meanwhile, short circuit caused by electric wire winding is effectively avoided, and the safety performance and the electric performance of a battery pack are improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic structural view of a front view in an embodiment of the present invention;

FIG. 2 is a schematic top view of an embodiment of the present invention;

FIG. 3 is a schematic diagram of a circuit in an embodiment of the invention;

wherein: 1-a cell body; 2-a plate body; 3-lead.

Detailed Description

As used in the specification and in the claims, certain terms are used to refer to particular components. As one skilled in the art will appreciate, manufacturers may refer to a component by different names. This specification and claims do not intend to distinguish between components that differ in name but not function. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. "substantially" means within an acceptable error range, within which a person skilled in the art can solve the technical problem to substantially achieve the technical result.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention 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 invention.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The present invention will be described in further detail below with reference to the accompanying drawings, but the present invention is not limited thereto.

Examples

As shown in fig. 1-3, a six-cell series battery pack includes six cell bodies 1, a plate body 2, and a circuit printed on the plate body 2, wherein the circuit includes a cell protection chip CW1073, a thermistor 103AT-4, a first capacitor C, a first electrode P +/C +, a second electrode P-/C-, and six cell connection units, the six cell connection units are sequentially connected in series, the thermistor 103AT-4, the first electrode P +/C +, and the six cell connection units are all electrically connected with the cell protection chip CW1073, the cell protection chip CW1073 is electrically connected with the second electrode P-/C-through the first capacitor, the six cell bodies 1 are electrically connected with the six cell connection units one by one through leads 3, the cell connection units include triodes Q5, Q1, Q2, Q3, Q4, Q6, Q9, and a first resistor R30, r25, R20, R12, R7, R4, second capacitor C3, C4, C5, C6, C1, C7, C8, C10 and two second resistors R28, R27, R24, R21, R17, R13, first resistor R13, R13 are provided with a first connection terminal and a second connection terminal, the first connection terminal is insulated from the second connection terminal, triode Q13, a first pole of Q13 is electrically connected to one of second resistor R13, Q13, R13, Q13, R36, and a third pole of the triodes Q5, Q1, Q2, Q3, Q4, Q6 and Q9 is electrically connected with the second electrode P-/C-through a second capacitor C3, C4, C5, C6, C1, C7, C8 and C10. In practical application, a plurality of auxiliary resistors can be flexibly arranged according to the actual working requirement; the six electric core bodies 1 are in one-to-one correspondence with the six electric core connecting units, the positive pole and the negative pole of each electric core body 1 are connected with the first connecting terminal and the second connecting terminal in the adjacent electric core connecting unit in one-to-one correspondence, and the first electrode P +/C + and the second electrode P-/C-are used as the positive pole and the negative pole which are externally connected, so that the six electric cores are simultaneously connected in series, the difficulty of production and installation is reduced, the mass production is facilitated, the circuit board can simultaneously carry out the series connection of the six electric cores, the mass production is facilitated, the use is convenient, meanwhile, the short circuit caused by electric wire winding is effectively avoided, and the safety performance and the electrical performance of the battery pack are improved.

Preferably, the length of the plate body 2 is 391-395 mm. The structural design is beneficial to reducing the volume of the whole battery pack; in practical application, it is preferable to design a lead hole every 65mm, and the lead hole is surrounded by copper-plated and tin-plated design, so that the lead 3 can be connected with the circuit after passing through the hole.

Preferably, the width of the plate body 2 is 20-25 mm. This structural design is advantageous in reducing the volume of the entire battery pack.

Preferably, the cell protection chip is CW 1073. Besides, the cell protection chip CW1073 may also be another component capable of achieving the same effect, and may be flexibly set according to actual conditions.

Preferably, the thermistor is 103 AT-4. Besides, the thermistor 103AT-4 may be another component capable of achieving the same effect, and may be flexibly set according to the actual situation.

Preferably, the first capacitance is 4.5 uF/50V. Besides, the first capacitor can be other capacitance values which can achieve the same effect, and can be flexibly set according to actual conditions.

Preferably, the transistors Q5, Q1, Q2, Q3, Q4, Q6, Q9 are MMBT 5401. Besides, the triodes Q5, Q1, Q2, Q3, Q4, Q6 and Q9 can be other components which can achieve the same effect, and can be flexibly set according to actual conditions.

Preferably, the first resistors R30, R25, R20, R12, R7 and R4 are 100R. Besides, the first resistors R30, R25, R20, R12, R7 and R4 may be other resistors capable of achieving the same effect, and may be flexibly set according to actual conditions.

Preferably, the second capacitor C3, C4, C5, C6, C1, C7, C8 and C10 are 0.1 uF. Besides, the second capacitors C3, C4, C5, C6, C1, C7, C8 and C10 may be other capacitance values capable of achieving the same effect, and may be flexibly set according to actual situations.

Preferably, the second resistors R28, R27, R24, R21, R17, R13, R9, R8, R29, R22, R14, R15, R6, R5, R3, and R2 are 1 k. Besides, the second resistors R28, R27, R24, R21, R17, R13, R9, R8, R29, R22, R14, R15, R6, R5, R3 and R2 may be other resistors capable of achieving the same effect, and may be flexibly set according to actual conditions.

The working principle of the invention is as follows: in practical application, a plurality of auxiliary resistors can be flexibly arranged according to the actual working requirement; the six electric core bodies 1 are in one-to-one correspondence with the six electric core connecting units, the positive pole and the negative pole of each electric core body 1 are connected with the first connecting terminal and the second connecting terminal in the adjacent electric core connecting unit in one-to-one correspondence, and the first electrode P +/C + and the second electrode P-/C-are used as the positive pole and the negative pole which are externally connected, so that the six electric cores are simultaneously connected in series, the difficulty of production and installation is reduced, the mass production is facilitated, the circuit board can simultaneously carry out the series connection of the six electric cores, the mass production is facilitated, the use is convenient, meanwhile, the short circuit caused by electric wire winding is effectively avoided, and the safety performance and the electrical performance of the battery pack are improved.

The foregoing description shows and describes several preferred embodiments of the invention, but as aforementioned, it is to be understood that the invention is not limited to the forms disclosed herein, but is not to be construed as excluding other embodiments and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.