Battery cell monitoring module

Abstract

A battery cell monitoring module having a battery cell, a circuit board, a positive conductor, and a negative conductor is provided. The battery cell has an insulating cover and a positive electrode head and a negative electrode head arranged on the insulating cover. The circuit board is arranged on the insulating cover and has a positive power pad, a positive voltage pad, a negative power pad, and a negative voltage pad. The positive conductor is arranged on the battery cell and includes a positive power pin and a positive voltage pin. The positive power pin is electrically connected to the positive electrode head and the positive power pad. The positive voltage pin is electrically connected to the positive electrode head and the positive voltage pad. The negative conductor is arranged on the battery cell and includes a negative power pin and a negative voltage pin. The negative power pin is electrically connected to the negative electrode head and the negative power pad. The negative voltage pin is electrically connected to the negative electrode head and the negative voltage pad.

Description

[Technical Field]

[0001] This disclosure relates to a battery module, and more particularly to a cell monitoring module capable of directly measuring the voltage of a battery cell. [Previous Technology]

[0002] Battery cells are widely used due to their advantages such as portability, large capacity, and good safety performance. Therefore, they are mostly used with voltage sensors or voltage detection circuits to measure their voltage, so that users can monitor the internal state of the battery cell at any time. However, the voltage sensors or voltage detection circuits used with existing battery cells are connected to the positive and negative terminals of the battery cell through two conductive lines respectively. Therefore, the voltage measurement is affected by a large current, which affects the stability and accuracy of the voltage measurement, and it is not easy to perform electrochemical impedance spectroscopy (EIS) measurement on the battery cell.

[0003] In addition, most existing battery cells are assembled first and then the busbars are soldered on to conduct and distribute current. Therefore, when monitoring the temperature of existing battery cells, most of them directly measure the temperature of the busbars using sensors. The temperature measured in this way is actually the temperature of the busbars, which has an error with the actual temperature of the battery cell. Moreover, before the battery cell is soldered to the busbars, the user cannot know the temperature and status of the battery cell.

[0004] In view of this, the discloser has devoted himself to researching and applying theoretical principles to address the shortcomings of the prior art, and has made every effort to solve the above-mentioned problems, which has become the target of the discloser's improvement. [Summary of the Invention]

[0005] The main purpose of this disclosure is to enable the circuit board to reduce interference or influence from other power supply circuits when measuring the voltage of the battery cell, thereby improving the stability and accuracy of voltage measurement.

[0006] To achieve the above objectives, this disclosure provides a battery cell monitoring module, including a battery cell, a circuit board, a positive conductor, and a negative conductor. The battery cell has a positive terminal, a negative terminal, and an insulating cover. The positive and negative terminals are disposed on the insulating cover. The circuit board is disposed on the insulating cover and has a positive power pad, a positive voltage pad, a negative power pad, and a negative voltage pad. The positive conductor is disposed on the battery cell and includes a positive connection portion and a positive power supply portion. The battery cell has a positive voltage pin, a positive connection part electrically connected to the positive terminal, a positive power pin electrically connected to the positive connection part and the positive power pad, and a positive voltage pin electrically connected to the positive connection part and the positive voltage pad. The negative conductor is disposed on the battery cell and includes a negative connection part, a negative power pin, and a negative voltage pin. The negative connection part is electrically connected to the negative terminal, the negative power pin is electrically connected to the negative connection part and the negative power pad, and the negative voltage pin is electrically connected to the negative connection part and the negative voltage pad.

[0007] In one embodiment of the present disclosure, the positive conductor has a positive buffer portion, which is disposed on at least one of the positive power supply pin and the positive voltage pin.

[0008] In one embodiment of the present disclosure, the positive electrode buffer is arc-shaped, V-shaped or U-shaped.

[0009] In one embodiment of the present disclosure, the negative conductor has a negative buffer portion, which is disposed on at least one of the negative power supply pin and the negative voltage pin.

[0010] In one embodiment of the present disclosure, the negative electrode buffer is arc-shaped, V-shaped or U-shaped.

[0011] In one embodiment of the present disclosure, both the positive electrode connection portion and the negative electrode connection portion are elongated, rectangular, arc-shaped, semi-circular, or circular.

[0012] In one embodiment of the present disclosure, the positive power supply pin, the positive voltage pin, the negative power supply pin, and the negative voltage pin are all strip-shaped, flat, or linear.

[0013] In one embodiment of the present disclosure, an outer cover is further included, which is disposed on an insulating cover and covers at least a portion of the circuit board, at least a portion of the positive conductor and at least a portion of the negative conductor.

[0014] In one embodiment of the present disclosure, the battery cell has an exhaust valve and the circuit board has a slot corresponding to the position of the exhaust valve.

[0015] In one embodiment of the present disclosure, the battery cell has an exhaust valve located between the circuit board and the positive conductor or between the circuit board and the negative conductor.

[0016] The battery cell monitoring module disclosed herein divides the positive conductor into a positive power pin and a positive voltage pin, which are electrically connected to the positive power pad and positive voltage pad of the circuit board, respectively. The negative conductor is divided into a negative power pin and a negative voltage pin, which are electrically connected to the negative power pad and negative voltage pad of the circuit board, respectively. This allows the battery cell to form an independent circuit with the circuit board through the positive power pin and the negative power pin for power supply. In this way, the circuit board can measure the voltage of the battery cell through the positive voltage pin and the negative voltage pin, thereby reducing interference or influence from other power supply circuits and improving the stability and accuracy of voltage measurement.

Implementation Method

[0017] In the description of this disclosure, it should be understood that the terms "front side", "rear side", "left side", "right side", "front end", "rear end", "end", "longitudinal", "lateral", "vertical", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting conditions of this disclosure.

[0018] As used herein, terms such as "first," "second," "third," "fourth," and "fifth" describe various elements, components, regions, hierarchies, and / or parts, which should not be limited by these terms. These terms are used only to distinguish one element, component, region, hierarchy, or part from another. Unless the context clearly indicates otherwise, the use of terms such as "first," "second," "third," "fourth," and "fifth" herein does not imply order or sequence.

[0019] Unless otherwise defined herein, the terms "substantially" and "approximately" are used to describe and narrate small changes. When used in connection with an event or situation, the term may include the exact moment the event or situation occurred, or the point to which the event or situation occurred. For example, when used in connection with a numerical value, the term may include a range of variation less than or equal to ±10% of the numerical value, such as less than or equal to ±5%, less than or equal to ±4%, less than or equal to ±3%, less than or equal to ±2%, less than or equal to ±1%, less than or equal to ±0.5%, less than or equal to ±0.1%, or less than or equal to ±0.05%.

[0020] The detailed description and technical content of this disclosure will be explained in conjunction with the drawings below. However, the drawings are for illustrative purposes only and are not intended to limit this disclosure.

[0021] This disclosure provides a battery cell monitoring module. Please refer to Figure 1, which is a perspective view of the first embodiment of this disclosure. It mainly includes a battery cell 10, a circuit board 20, a positive conductor 30, and a negative conductor 40.

[0022] In this embodiment, the battery cell 10 is rectangular, but this disclosure is not limited thereto. The battery cell 10 has a positive electrode 11, a negative electrode 12, and an insulating cover 14. In this embodiment, the insulating cover 14 is disposed on the top of the battery cell 10, and the positive electrode 11 and the negative electrode 12 are disposed on the insulating cover 14. Furthermore, in this embodiment, the positive conductor 30 and the negative conductor 40 are both planar electrodes, but the positive conductor 30 and the negative conductor 40 can also be internally threaded electrodes, externally threaded electrodes, or cylindrical electrodes. The battery cell 10 is rectangular, but this disclosure is not limited thereto. The outer shell of the battery cell 10 is made of metal, and has a flat area on the top coated with insulating material to form the insulating cover 14.

[0023] The circuit board 20 is directly attached to the insulating cover 14 of the battery cell 10, meaning that no supporting components, insulating components, or other components are provided between the insulating cover 14 and the circuit board 20. Specifically, the circuit board 20 is disposed on the insulating cover 14 along with the positive electrode 11 and the negative electrode 12, and in this embodiment, the circuit board 20 is located between the positive electrode 11 and the negative electrode 12. The circuit board 20 mainly has a positive power pad 21, a positive voltage pad 22, a negative power pad 23, and a negative voltage pad 24. The positive power pad 21 and the positive voltage pad 22 are located on the same side of the circuit board 20 and are adjacent to the positive electrode 11. The negative power pad 23 and the negative voltage pad 24 are also located on the same side of the circuit board 20 and are adjacent to the negative electrode 12. The position of the pads on the circuit board 20 is not limited to this.

[0024] In this embodiment, the positive conductor 30 is made of copper alloy. The positive conductor 30 is disposed on the insulating cover 14 and is electrically connected to the positive electrode head 11 and the circuit board 20. Specifically, the positive conductor 30 is configured corresponding to the positive electrode head 11 and the circuit board 20. The positive conductor 30 includes a positive electrode connection portion 31, a positive electrode power supply pin 32, and a positive electrode voltage pin 33. The positive electrode connection portion 31 is electrically connected to the positive electrode head 11, the positive electrode power supply pin 32 is electrically connected to the positive electrode connection portion 31 and the positive electrode power supply pad 21, and the positive electrode voltage pin 33 is electrically connected to the positive electrode connection portion 31 and the positive electrode voltage pad 22. In other words, the positive terminal 11 is electrically connected to the positive power pin 32 and the positive voltage pin 33 via the positive connection part 31, and the positive power pin 32 and the positive voltage pin 33 are electrically connected to the positive power pad 21 and the positive voltage pad 22 of the circuit board 20, respectively.

[0025] In this embodiment, the negative conductor 40 is made of copper alloy. Similar to the positive conductor 30, the negative conductor 40 is disposed on the insulating cover 14 and is electrically connected to the negative electrode head 12 and the circuit board 20. Specifically, the negative conductor 40 is configured corresponding to the negative electrode head 12 and the circuit board 20. The negative conductor 40 includes a negative connection portion 41, a negative power supply pin 42, and a negative voltage pin 43. The negative connection portion 41 is electrically connected to the negative electrode head 12, the negative power supply pin 42 is electrically connected to the negative connection portion 41 and the negative power supply pad 23, and the negative voltage pin 43 is electrically connected to the negative connection portion 41 and the negative voltage pad 24. The negative terminal 12 is electrically connected to the negative power supply pin 42 and the negative voltage pin 43 via the negative connection part 41, and the negative power supply pin 42 and the negative voltage pin 43 are electrically connected to the negative power supply pad 23 and the negative voltage pad 24 of the circuit board 20, respectively.

[0026] Accordingly, the positive power pad 21 and negative power pad 23 of the circuit board 20 are electrically connected to the positive terminal 11 and negative terminal 12 of the battery cell 10 respectively via the positive power pin 32 of the positive conductor 30 and the negative power pin 42 of the negative conductor 40, thereby forming an independent power circuit 25 to enable the battery cell 10 to supply power to the circuit board 20. The positive voltage pad 22 and negative voltage pad 24 of the circuit board 20 are electrically connected to the positive terminal 11 and negative terminal 12 of the battery cell 10 respectively via the positive voltage pin 33 of the positive conductor 30 and the negative voltage pin 43 of the negative conductor 40, forming a voltage detection circuit 26. This power circuit 25 and voltage detection circuit 26 are independent of each other, and the measurement of the voltage detection circuit 26 will not be interfered with or affected by the power circuit 25, thereby improving the stability and accuracy of voltage measurement.

[0027] For further explanation, please refer to Figures 1, 2, and 3. Figures 2 and 3 are respectively circuit diagrams of the battery cell 10, positive conductor 30, negative conductor 40, and circuit board 20 disclosed herein, and a three-dimensional view of the back of the circuit board 20. The circuit board 20 also includes a power supply circuit 25, a voltage detection circuit 26, a signal processor 27, a wireless signal transceiver 28, and a temperature sensor 29, which measure parameters such as current, voltage, and temperature of the battery cell 10 and transmit them to the outside for user monitoring. Detailed explanation follows.

[0028] The power circuit 25 of the circuit board 20 forms a circuit with the positive terminal 11 and the negative terminal 12 of the battery cell 10 through the positive power terminal 32 and the negative power terminal 42 respectively, so that the battery cell 10 can supply power to the voltage detection circuit 26, signal processor 27, wireless signal transceiver 28 and temperature sensor 29 of the circuit board 20.

[0029] The voltage detection circuit 26 forms a circuit with the positive terminal 11 and the negative terminal 12 of the battery cell 10 through the positive voltage terminal 33 and the negative voltage terminal 43, respectively. Since the resistance of the voltage detection circuit 26 is much greater than the resistance of the power supply circuit 25, the current value through the voltage detection circuit 26 is extremely small, thereby ensuring the stability and accuracy of the voltage measurement without being affected by the current.

[0030] The signal processor 27 converts the detected voltage signal into a numerical value and transmits it to the wireless transceiver 28. The wireless transceiver 28 then wirelessly transmits the converted voltage value to an external battery management system (BMS) for user monitoring. In this embodiment, the wireless transceiver 28 can be Bluetooth or WIFI; this disclosure does not impose any particular limitation on it.

[0031] The temperature sensor 29 can be used to measure the temperature of the battery cell 10, thereby determining whether the current temperature of the battery cell 10 is within the normal operating temperature range. Specifically, the temperature sensor 29 is disposed on the circuit board 20, and at least a portion of the measuring pad of the temperature sensor 29 is located on the bottom surface of the circuit board 20 (i.e., the side away from the positive power pad 21, positive voltage pad 22, negative power pad 23, and negative voltage pad 24). Since the circuit board 20 is directly attached to the insulating cover 14 of the battery cell 10, the measuring pad of the temperature sensor 29 located on the bottom surface of the circuit board 20 can be directly attached to the insulating cover 14 to measure the temperature of the battery cell 10. The monitoring results of the battery cell 10 temperature are then transmitted to an external battery management system for user monitoring via the wireless transceiver 28. It should be noted that the measuring pad of the temperature sensor 29 can be protruding or flush with the bottom surface of the circuit board 20; this disclosure does not impose further limitations on this. In addition, in this embodiment, the insulating cover 14 is covered with an insulating layer on a copper plate. Therefore, by directly attaching the measuring pad of the temperature sensor 29 to the insulating cover 14 of the cell 10, the temperature sensor 29 can still directly and quickly monitor the current temperature of the cell 10 without much error.

[0032] Furthermore, the circuit board 20 disclosed herein may also have an electrochemical impedance spectroscopy (EIS) circuit. The voltage signal measured by the voltage detection circuit 26 from the positive voltage pin 33 and the negative voltage pin 43 can be further detected by the electrochemical impedance spectroscopy circuit to detect the cell impedance change of the battery cell 10. Thus, the cell health of the battery cell 10 can be monitored by the cell impedance change, and the monitoring results of the cell impedance change can also be transmitted to an external battery management system for user monitoring via the wireless transceiver 28.

[0033] Referring again to Figure 1, the detailed structure of the battery cell monitoring module disclosed herein will be further described below. In this embodiment, the positive conductor 30 has a positive buffer portion 34. The positive buffer portion 34 is disposed on at least one of the positive power pin 32 and the positive voltage pin 33, and the positive buffer portion 34 is arc-shaped, V-shaped, U-shaped, or other shapes with collapsible spaces. In this embodiment, the positive buffer portion 34 is disposed on both the positive power pin 32 and the positive voltage pin 33, and the positive buffer portion 34 is an upwardly arched arc structure, thereby absorbing the dimensional tolerance between the positive terminal 11 and the circuit board 20 through the elastic deformation of the positive buffer portion 34. However, this disclosure is not limited to this; for example, the positive buffer portion 34 may also be concave rather than arched. In this embodiment, the negative conductor 40 has a negative buffer portion 44. The negative electrode buffer 44 is disposed on at least one of the negative power pin 42 and the negative voltage pin 43, and the negative electrode buffer 44 is also arc-shaped, V-shaped, U-shaped, or other shapes with collapsible spaces. In this embodiment, the negative electrode buffer 44 is disposed on both the negative power pin 42 and the negative voltage pin 43, and the negative electrode buffer 44 is an upwardly arched arc structure, so as to absorb the dimensional tolerance between the negative electrode head 12 and the circuit board 20 through the elastic deformation of the negative electrode buffer 44. However, this disclosure is not limited to this. For example, the negative electrode buffer 44 can also be concave instead of arched.

[0034] Further explanation: Both the positive electrode connection portion 31 and the negative electrode connection portion 41 are two-point type, elongated, rectangular, arc-shaped, semi-circular, or circular. In this embodiment, both the positive electrode connection portion 31 and the negative electrode connection portion 41 are elongated and are substantially perpendicular to the positive power supply pin 32, the positive voltage pin 33, the negative power supply pin 42, and the negative voltage pin 43. Furthermore, the positive power supply pin 32, the positive voltage pin 33, the negative power supply pin 42, and the negative voltage pin 43 are all elongated, flat, or linear. In this embodiment, the positive power pin 32, positive voltage pin 33, negative power pin 42, and negative voltage pin 43 are all elongated and are substantially parallel to each other. However, the positive power pin 32 and positive voltage pin 33 can also be arranged in an inverted V shape, or the positive power pin 32 can be arranged parallel to the positive voltage pin 33 but not parallel to the negative power pin 42 and negative voltage pin 43. Those skilled in the art should be able to make corresponding adjustments according to different needs.

[0035] Furthermore, the battery cell 10 disclosed herein also includes an exhaust valve 13. The exhaust valve 13 is disposed on the insulating cover 14. The outer casing corresponding to the exhaust valve 13 varies in thickness so that it can rupture and reduce pressure if the internal pressure of the battery cell increases. In this embodiment, the circuit board 20 has a through slot 201 corresponding to the position of the exhaust valve 13 to prevent the circuit board 20 from obscuring the exhaust valve 13. However, the circuit board 20 can also be disposed on the side of the exhaust valve 13 without having a through slot 201. That is, the exhaust valve 13 can also be located between the circuit board 20 and the positive conductor 30 or between the circuit board 20 and the negative conductor 40.

[0036] Please refer to Figure 4, which is a partial perspective view of the second embodiment of this disclosure. The difference between this embodiment and the first embodiment lies in the form of the positive electrode connection 31, the negative electrode connection 41, the positive electrode buffer 34, and the negative electrode buffer 44, as detailed below. In this embodiment, both the positive electrode connection 31 and the negative electrode connection 41 are annular, so that they can be fitted onto the corresponding positive electrode head 11 and negative electrode head 12 to form a positioning, thereby facilitating the welding and fixing of the positive electrode conductor 30 and the negative electrode conductor 40. In addition, the positive electrode connection 31 and the negative electrode connection 41 in this embodiment each have a plurality of notches (not labeled) on their inner edges of the annulus, so that the pulling caused by the positive electrode connection 31 and the negative electrode connection 41 when fitted onto the positive electrode head 11 and the negative electrode head 12 will not cause cracks or damage, but this disclosure is not limited thereto. Furthermore, in this embodiment, both the positive electrode buffer portion 34 and the negative electrode buffer portion 44 are U-shaped structures that are concave downwards. This can prevent the positive electrode buffer portion 34 and the negative electrode buffer portion 44 from protruding too much, which would make them easily deformed by collisions or impacts.

[0037] Please refer to Figure 5, which is a partial perspective view of the third embodiment disclosed herein. The difference between the third and fourth embodiments lies in the form of the positive conductor 30 and the negative conductor 40 and the arrangement of the circuit board 20. Furthermore, the third embodiment does not have the positive buffer portion 34 and the negative buffer portion 44 compared to the first embodiment. Detailed explanation follows. In this embodiment, both the positive connection portion 31 and the negative connection portion 41 are rectangular, while the positive power pin 32, the positive voltage pin 33, the negative power pin 42, and the negative voltage pin 43 are all flat. This allows the positive conductor 30 and the negative conductor 40 to significantly increase their volume and surface area while maintaining the same thickness, thereby improving the heat dissipation efficiency of the positive conductor 30 and the negative conductor 40 to cope with the high temperature generated during the operation of the battery cell 10. In addition, since the positive conductor 30 and negative conductor 40 in this embodiment do not have positive and negative buffer portions 34 and 44 respectively, the positive power pin 32, positive voltage pin 33, negative power pin 42, and negative voltage pin 43 are longer. This not only further increases the volume and surface area to improve heat dissipation efficiency, but also absorbs the dimensional tolerances between the positive terminal 11 and the circuit board 20 or between the negative terminal 12 and the circuit board 20. Furthermore, in this embodiment, the circuit board 20 is disposed on the side of the exhaust valve 13 of the battery cell 10. Therefore, the circuit board 20 does not affect the internal air pressure balance of the battery cell 10 and does not need to have a through slot 201, thus allowing the circuit board 20 to have a larger area to accommodate electronic components.

[0038] Please refer to Figure 6, which is a partial perspective view of the fourth embodiment disclosed herein. The difference between this embodiment and the third embodiment lies in the form of the positive power connector 32, the positive voltage connector 33, and the negative connection portion 41, as detailed below. In this embodiment, the positive power connector 32 and the positive voltage connector 33 each have a notch (not labeled) corresponding to the position of the exhaust valve 13, thereby preventing the positive power connector 32 and the positive voltage connector 33 from obstructing the exhaust valve 13 and affecting the internal pressure balance of the battery cell 10. Furthermore, the negative connection portion 41 in this embodiment is a two-point type, meaning that the negative power connector 42 and the negative voltage connector 43 are directly soldered to the negative terminal 12 through two points, thereby effectively reducing production costs.

[0039] Please refer to Figure 7, which is a partial perspective view of the fifth embodiment disclosed herein. The difference between this embodiment and the first embodiment lies in the form of the positive power pin 32, positive voltage pin 33, negative power pin 42, and negative voltage pin 43, as detailed below. In this embodiment, the positive power pin 32, positive voltage pin 33, negative power pin 42, and negative voltage pin 43 are all linear. Specifically, in this embodiment, the positive power pin 32, positive voltage pin 33, negative power pin 42, and negative voltage pin 43 are all connected by wire bonding. This not only effectively reduces production costs but also reduces the size of the positive power pin 32, positive voltage pin 33, negative power pin 42, and negative voltage pin 43, thereby reducing the probability of damage due to collisions or impacts.

[0040] Please refer to Figures 8 and 9, which are a partial exploded perspective view and a partial perspective view of the sixth embodiment of this disclosure, respectively. The main difference between this embodiment and the first embodiment is that it also includes an outer cover 50. In this embodiment, the outer cover 50 is integrally molded from plastic injection molding, but this disclosure is not limited to this, as long as the outer cover 50 is made of insulating material. The outer cover 50 is disposed on the battery cell 10, and the outer cover 50 covers at least a portion of the circuit board 20, at least a portion of the positive conductor 30, and at least a portion of the negative conductor 40, thereby protecting the circuit board 20, the positive conductor 30, and the negative conductor 40, thereby preventing the battery cell monitoring module of this disclosure from being deformed or damaged due to collisions or impacts.

[0041] It should be noted that the contents of the various embodiments and drawings described above are only intended to enable those skilled in the art to understand and implement the battery cell monitoring module disclosed herein, but are not intended to limit the battery cell monitoring module disclosed herein to only these six forms. In other words, those skilled in the art can substitute, combine or adjust the differences in technical features in the various embodiments and drawings based on this disclosure, but they should still fall within the protection scope of this disclosure. This is hereby stated.

[0042] The battery cell monitoring module disclosed herein divides the positive conductor 30 into a positive power pin 32 and a positive voltage pin 33, which are electrically connected to the positive power pad 21 and the positive voltage pad 22 of the circuit board 20, respectively. The negative conductor 40 is divided into a negative power pin 42 and a negative voltage pin 43, which are electrically connected to the negative power pad 23 and the negative voltage pad 24 of the circuit board 20, respectively. This allows the battery cell 10 to form an independent circuit with the circuit board 20 through the positive power pin 32 and the negative power pin 42 for power supply. The positive voltage pin 33 and the negative voltage pin 43 allow the circuit board 20 to measure the voltage of the battery cell 10, thereby reducing interference or influence of the power supply circuit 25 and improving the stability and accuracy of voltage measurement.

[0043] In summary, the foregoing disclosure is intended to enable those skilled in the art to clearly understand the technical content of this disclosure and implement it accordingly, rather than to limit the scope of patent protection of this disclosure. In addition, this disclosure may of course have other embodiments not listed. Without departing from the spirit and essence of this disclosure, those skilled in the art should be able to devise various corresponding changes and modifications based on this disclosure, but all such corresponding changes and modifications should fall within the scope of protection of the patent application filed under this disclosure. [Simplified Explanation of the Diagram]

[0044] Figure 1 is a perspective view of the first embodiment disclosed herein.

[0045] Figure 2 is a circuit diagram of the battery cell, positive conductor, negative conductor and circuit board disclosed herein.

[0046] Figure 3 is a three-dimensional view of the back of the circuit board disclosed herein.

[0047] Figure 4 is a partial perspective view of the second embodiment disclosed herein.

[0048] Figure 5 is a partial perspective view of the third embodiment disclosed herein.

[0049] Figure 6 is a partial perspective view of the fourth embodiment disclosed herein.

[0050] Figure 7 is a partial perspective view of the fifth embodiment disclosed herein.

[0051] Figure 8 is a partial exploded perspective view of the sixth embodiment disclosed herein.

[0052] Figure 9 is a partial perspective view of the sixth embodiment disclosed herein.

Claims

1. A battery cell monitoring module, comprising: A battery cell has a positive terminal, a negative terminal and an insulating cover, the positive terminal and the negative terminal are disposed on the insulating cover; a circuit board is disposed on the insulating cover, the circuit board has a positive power pad, a positive voltage pad, a negative power pad and a negative voltage pad. A positive conductor is disposed on the battery cell. The positive conductor includes a positive connection portion, a positive power supply pin, and a positive voltage pin. The positive connection portion is electrically connected to the positive terminal head. The positive power supply pin is electrically connected to the positive connection portion and the positive power supply pad. The positive voltage pin is electrically connected to the positive connection portion and the positive voltage pad. A negative conductor is disposed on the battery cell. The negative conductor includes a negative connection portion, a negative power supply pin, and a negative voltage pin. The negative connection portion is electrically connected to the negative terminal head. The negative power supply pin is electrically connected to the negative connection portion and the negative power supply pad. The negative voltage pin is electrically connected to the negative connection portion and the negative voltage pad.

2. The cell monitoring module as described in claim 1, wherein the positive conductor has a positive buffer portion, the positive buffer portion being disposed on at least one of the positive power supply pin and the positive voltage pin.

3. The cell monitoring module as described in claim 2, wherein the positive electrode buffer is arc-shaped, V-shaped, or U-shaped.

4. The cell monitoring module as described in claim 1, wherein the negative conductor has a negative buffer portion, the negative buffer portion being disposed on at least one of the negative power supply pin and the negative voltage pin.

5. The cell monitoring module as described in claim 4, wherein the negative electrode buffer is arc-shaped, V-shaped, or U-shaped.

6. The cell monitoring module as described in claim 1, wherein both the positive terminal connection and the negative terminal connection are elongated, rectangular, arc-shaped, semi-circular, or circular.

7. The cell monitoring module as described in claim 1, wherein the positive power supply pin, the positive voltage pin, the negative power supply pin, and the negative voltage pin are all strip-shaped, flat, or wire-shaped.

8. The cell monitoring module as described in claim 1 further includes an outer cover disposed on the insulating cover and covering at least a portion of the circuit board, at least a portion of the positive conductor and at least a portion of the negative conductor.

9. The cell monitoring module as described in claim 1, wherein the cell has an exhaust valve and the circuit board has a slot corresponding to the location of the exhaust valve.

10. The cell monitoring module as claimed in claim 1, wherein the cell has an exhaust valve located between the circuit board and the positive conductor or between the circuit board and the negative conductor.

Images