TW201419630A - Modular battery - Google Patents

Abstract

The present invention provides a modular battery, which greatly reduces the defective rate and shortens the manufacturing time. The technical means comprises: a battery casing, an electric power storage device, a monitoring circuit board for monitoring the voltage and temperature of each cell, a metal conductive layer set with its thickness larger than the printed circuit thickness of the monitoring circuit board, a positive terminal, a negative terminal, and a battery management system. In which, the monitoring circuit board further comprises a reset button, which may restart the battery management system while the battery management system determines the electric power storage level of each cell is too low and stops the power supply, so as to force each cell to continue the power supply. A shield plate is further configured between the electric power storage device and the monitoring circuit board for covering the safety pressure relief valve to prevent the monitoring circuit board from corrosion by the leaked battery fluid.

Description

Modular battery

The present invention relates to a modular battery.

In recent years, the deteriorating global warming phenomenon and the oil crisis have forced humans to seek energy-saving and environmentally-friendly alternative energy sources. At this stage, the development of high-power lithium battery applications is the most important part of the current environmental protection and energy conservation fields.

At present, lithium batteries on the market, whether it is electric vehicles, electric motors, hand tools, or even 3C digital products [such as notebooks], the lithium batteries used by them are mostly composed of multiple batteries and battery management. The system is composed of.

Among them, the battery management system [Battery Management System (BMS)], the necessary functions are "detecting the status of each cell", "control current output / power off" two major functions.

Because of this, there are a considerable number of power lines, temperature detection lines, and voltage detection lines between the battery cells and the battery management system.

Therefore, the difficulty and cost of assembly are increased, and the defect rate is high. Any mistake of one contact may cause malfunction, or damage to the battery management system and the battery.

In the process of assembly and consumer application, it is more likely that the battery will be rubbed, short-circuited, interfered with, broken, or the connector is loose due to battery shake, resulting in poor contact and damage, and various abnormal conditions are prone to occur. Therefore, existing The lithium battery is necessary for improvement.

In view of the above, it is an object of the present invention to provide an assembly which is difficult and low in cost, low in defect rate, high in battery reliability, and capable of further shortening the battery for production man-hours.

An object of the present invention is to provide a modular battery that can significantly reduce the defect rate and shorten the production man-hour.

In order to solve the above problems and achieve the object of the present invention, the technical means of the present invention is implemented as a modular battery, comprising: a battery case (1) having a receiving space (11); The utility model is disposed in the accommodating space (11), and comprises a plurality of storage batteries of the battery (21) having positive and negative batteries (211, 212) and a safety relief valve (213) at one end and arranged in a plane of the power supply end. The device (2) is disposed in the accommodating space (11) at a top side of the power storage device (2), and covers the power storage device (2) for monitoring voltage and temperature of each battery (21). a monitoring circuit board (3); a group is disposed in the accommodating space (11) at a top side of the monitoring circuit board (3), and is electrically connected to the batteries (21), and has a thickness greater than a monitoring circuit board ( 3) a printed circuit thickness having a metal conductive layer set (4) having a positive output terminal (A) and a negative output terminal (B); a connection to the positive output terminal (A) and an end protruding from the battery case (1) a positive electrode pile head (5); one connected to the negative electrode output end (B), one end protruding from the negative electrode pile head (6) of the battery case (1); and one disposed at the capacity a battery management system (7) electrically connected to the monitoring circuit board (3) in the space (11); the monitoring circuit board (3) further includes a battery management system (7) in the batteries (21) When the battery management system (7) determines and stops the power supply, the battery management system (7) is restarted to force the battery (21) to continue to supply power to the reset button (31); Between the power storage device (2) and the monitoring circuit board (3), a cover plate (8) capable of covering the safety pressure relief valve (213) to prevent the monitoring circuit board (3) from being leaked by the battery liquid is provided. .

According to the above modular battery, the battery management system (7) is co-constructed on the monitoring circuit board (3); and the monitoring circuit board (3) is one of the following: Double-layer printed circuit board, multilayer printed circuit board.

According to the above modular battery, the battery management system (7) is a battery management circuit board (71) provided outside the monitoring circuit board (3); the battery management circuit board (71), Further, it is electrically connected to the monitoring circuit board (3) by one of the following methods: a communication slot (9) and a cable (10); and the monitoring circuit board (3) is one of the following: Layer printed circuit board, multilayer printed circuit board.

According to the above modular battery, the metal conductive layer group (4) is electrically connected to the power storage device (2) in one of the following manners: series, parallel, series, parallel connection; and the metal conductive a layer group (4) comprising a positive electrode metal conductive layer (41) corresponding to the positive electrode output terminal (A) and connected to the positive electrode pile head (5); and a segment corresponding to the negative electrode output terminal (B) And a negative electrode metal conductive layer (42) connected to the negative electrode pile head (6); the metal conductive layer group (4) is connected in series to the power storage device (2), Included in at least one series of metal conductive layers (43); the metal conductive layer group (4) is connected in parallel to the power storage device (2), and further includes at least one parallel metal conductive layer (44); the metal conductive layer group (4), which is connected in series and in parallel, and electrically connected to the power storage device (2), further comprising at least one series metal conductive layer (43) and a parallel metal a conductive layer (44); the metal conductive layer group (4) is electrically connected to the batteries (21) by screwing .

According to the above modular battery, at the input end of the negative metal conductive layer (42), a plurality of switching units (45) are further provided, and the aforementioned switching unit (45) is Is one of the following or a mixture: Mosfet, relay.

According to the above modular battery, the metal conductive layer group (4) is further provided with a spring (46) between the screw joints of the batteries (21); and the metal conductive layer group (4) ), which is fixed to the monitoring circuit board (3) in one of the following manners: card bonding, pasting, vapor deposition, sputtering; and the metal conductive layer group (4) is as follows One layer group: copper sheet conductive layer group, nickel-plated copper conductive layer group, tin-plated copper conductive layer group, nickel-plated iron conductive layer group, nickel sheet conductive layer group.

According to the above modular battery, the monitoring circuit board (3) is further provided with a voltage sensing circuit (32), a set of power supply circuits (33), and a temperature corresponding to the respective batteries (21). The sensing unit is electrically connected to the monitoring circuit board (3) in one of the following manners: co-constructed on the monitoring circuit board (3), and electrically connected to the monitoring circuit board (3) through the signal line .

According to the above-mentioned modular battery, the cover plate (8) is further provided with a baffle plate (81) extending between the batteries (21) for supporting the storage batteries (21) at the bottom end surface thereof. And the cover plate (8), at the top end surface thereof, corresponding to the positive and negative batteries (211, 212) of the respective batteries (21), further provided with a polarity indication map for preventing dullness (82) Further, at the top end faces of the positive and negative electrode cells (211, 212), a polarity indicating portion (214) for identifying polarity is further provided, and the positive electrode cell (211) is coated with a surface. A polarity marking coating (215) for identifying polarity.

According to the above modular battery, the top end surface of the battery case (1) is further disposed between a state perpendicular to the surface of the battery case (1) and flattened on the surface of the battery case (1). Switching, T-shaped handle (20); two ends of the pivoting portion of the handle (20) are respectively provided with a pivoting block (30) that is fastened to the top surface of the battery case (1) The pivoting portion of the aforementioned handle (20) is further provided with a plurality of pivoting blocks (30) mating, deviating from the axis of the handle (20), and forcing the handle (20) to automatically flatten to the battery case when the handle (20) is perpendicular to the surface of the battery case (1) (1) A shaft (40) in the state of the surface.

According to the above modular battery, the handle (20) is adjacent to a side of the battery case (1), and further has a first mating portion (201); and the battery case (1), Corresponding to the first mating portion (201), a second mating portion (12) capable of cooperating with the first mating portion (201) to avoid short circuit due to water; The portion (201) is one of the following structures: a ridge, a groove; and the second mating portion (12) is configured to correspond to the first mating portion (201): Ribs, grooves.

1. In the overall cost of a traditional lithium battery, battery cost accounts for 74% of the overall cost, and assembly cost accounts for 26% of the overall cost. The battery cost is difficult to reduce, and only the assembly cost can be controlled by humans. Through the cooperation of the monitoring circuit board (3), the metal conductive layer group (4) and the battery management system (7) of the present invention, not only the wire portion of the lithium battery is eliminated, but also a plurality of signal detecting lines are integrated. On the monitoring circuit board (3), the assembly cost is reduced, and the reliability of the product is more effectively solved. Moreover, the application of the metal conductive layer group (4) is more effectively solved, and the printed circuit board cannot withstand continuous discharge of large current. The problem is to make the specific industrial applicability of the present invention.

2. In the present invention, by the application of the reset button (31), when the consumer is in a hurry and wants to obtain power, the reset button (31) can be applied to force the battery management system (7) to restart, without Considering the service life of each battery (21), the power reserved by each battery (21) is completely released for the consumer to use.

3. In the present invention, through the use of the cover plate (8), the leakage of the battery liquid is effectively prevented, and the monitoring circuit board (3) is eroded to prolong the service life of the present invention. Low overall failure rate.

4. In the present invention, depending on the type of battery application, such as a power battery, or a starter battery, or a battery for a 3C product, the battery management system (7) can be monitored according to the size of the monitoring circuit board (3). The circuit board (3) is co-configured, or the battery management system (7) is directly disposed outside the monitoring circuit board (3), which is convenient for the operator to apply, and effectively expands the application range of the present invention.

5. In the present invention, the polarity indication map (82), the polarity indication portion (214), and the polarity indication coating layer (215) are used together to solve the problem that the polarity is easily installed incorrectly during assembly, and some assembly defects are reduced. rate.

The following is a detailed description of the embodiment shown in the drawings: FIG. 1 is a schematic perspective view of the present invention, and FIG. 2 is an exploded perspective view of the present invention, and FIG. 3 is a partial exploded view of FIG. FIG. 4 is a schematic cross-sectional view showing a second embodiment of the present invention. FIG. 10 is a schematic exploded view of the present invention in combination with another metal conductive layer set. FIG. FIG. 11 is a perspective view showing another embodiment of the present invention. FIG. 12 is an exploded perspective view showing another embodiment of the present invention. FIG. 13 is a partially exploded perspective view of FIG. A schematic cross-sectional view of III-III of another embodiment of the present invention is shown, and FIG. 15 is an exploded perspective view showing another embodiment of the present invention in combination with a battery management system in another manner.

The figure shows a modular battery, comprising: a battery case (1) having an accommodating space (11); a set is disposed in the accommodating space (11) and includes a plurality of a power storage device (2) having a positive and negative battery cells (211, 212) and a safety relief valve (213) at one end and a battery (21) arranged in a plane of the power supply end; one of the housings (11) disposed in the accommodating space (11) a monitoring circuit board (3) for monitoring the voltage and temperature of each battery (21); a set is disposed in the accommodating space (11) at a top side of the monitoring circuit board (3), and is electrically connected to the battery (21), and has a thickness greater than a thickness of the printed circuit board of the monitoring circuit board (3), a positive electrode output terminal (A) and a negative electrode output terminal (B) of the metal conductive layer group (4); one connected to the positive electrode output terminal (A), one end protruding from the positive electrode pile head of the battery case (1) 5); one connected to the negative output terminal (B), one end protruding from the negative electrode pile head (6) of the battery case (1); and one disposed in the accommodating space (11), and the monitoring circuit board (3) an electrically connected battery management system (7); the monitoring circuit board (3) further includes a battery management system (7) in which the storage battery (21) has a low amount of electricity, and the battery management system (7) when determining and stopping the power supply, restarting the battery management system (7) to force the battery (21) to continue to supply power to the reset button (31); and the power storage device (2) and the monitoring circuit board ( 3), there is a cover (8) which can cover the safety pressure relief valve (213) to prevent the monitoring circuit board (3) from being eroded by the leaked battery liquid.

Through the cooperation of the monitoring circuit board (3), the metal conductive layer group (4) and the battery management system (7) of the invention, the interference and cost of the wire part are eliminated, the assembly cost is reduced, and the product reliability is effectively solved. problem.

Secondly, through the use of the metal conductive layer group (4), the problem that the printed circuit board cannot withstand continuous discharge of a large current is solved, and the specific industrial applicability of the present invention is made.

Furthermore, the application of the reset button (31) allows the present invention to have a function that is difficult to apply. When the consumer is in a hurry, the battery protection mechanism is not available, and power cannot be obtained, regardless of the battery (21). Before the service life is lifted, the power reserved by each battery (21) is completely released for the consumer to use.

On the other hand, generally for safety reasons, the battery (21) is equipped with a safety relief valve (213), which can relieve the internal pressure of the battery (21) and avoid the explosion. In addition, the leaked battery liquid will inevitably erode the circuit board and shorten the service life. Therefore, in order to ensure safety and service life, the present invention blocks the leaked battery liquid through the use of the cover plate (8) to avoid erosion. To the monitoring circuit board (3), it is possible to extend the service life of the present invention while reducing the overall failure rate.

In the above, the battery management system (7) is co-constructed on the monitoring circuit board (3).

Among them, when the monitoring circuit board (3) is large enough, there is no need to worry about magnetic interference or insufficient current tolerance, the battery management system (7) and the monitoring circuit board (3) can be co-configured to reduce the use space. The invention is more modular, and the production and assembly are time-consuming and cost-effective.

In the above, the battery management system (7) is a battery management circuit board (71) disposed outside the monitoring circuit board (3); the battery management circuit board (71) is further In one mode, it is electrically connected to the monitoring circuit board (3): a communication slot (9) and a cable (10).

Among them, when the housing space (11) of the battery case (1) is too small, the monitoring circuit board (3) is bound to become small, and magnetic wave interference or current resistance is liable to occur, so the battery management system (7) Therefore, it cannot be co-constructed on the monitoring circuit board (3). Therefore, some functions are shifted out by the setting mode of the battery management circuit board (71) without affecting the overall function.

Secondly, through the different connection modes of the communication slot (9) or the cable (10), the operator can choose the appropriate connection method to obtain the best application.

In the above, the monitoring circuit board (3) is one of the following: a double-layer printed circuit board, a multilayer printed circuit board

Among them, the length of the printed circuit will be different for different circuit application requirements. Therefore, different printed circuit boards should be used for different requirements, so that the monitoring circuit board (3) can operate normally.

In the above, the metal conductive layer group (4) is electrically connected to the power storage device (2) in one of the following manners: series, parallel, series, and parallel connection; The metal conductive layer group (4) includes a positive electrode metal conductive layer (41) corresponding to the positive electrode output terminal (A) and connected to the positive electrode pile head (5); and one piece corresponding to the negative electrode An output metal terminal (B) and a negative electrode metal conductive layer (42) connected to the negative electrode pile head (6); the metal conductive layer group (4) is connected in series, and the power storage device (2) The electrical connection further includes at least one series of metal conductive layers (43); the metal conductive layer group (4) is connected in parallel to the power storage device (2), and further includes at least a parallel metal conductive layer (44); the metal conductive layer group (4) is connected to the power storage device (2) through series connection and parallel connection, and further comprises at least one series metal conductive layer ( 43) and a parallel metal conductive layer (44); and the metal conductive layer group (4) is electrically connected to the respective batteries (21) by screwing.

In the above, at the input end of the negative metal conductive layer (42), a plurality of switching units (45) are further provided, and the switching unit (45) is one of the following or a mixture thereof: Mosfet, a relay.

Among them, in response to different battery needs, flexible adjustment of the metal conductive layer group (4), allowing the industry to freely choose to use.

Secondly, the metal conductive layer group (4) can be stably matched with each battery (21) by means of screwing.

Furthermore, through the use of the switch unit (45), the battery management system (7) uses the switch unit (45) to control the power supply or not, so that the present invention can operate normally.

FIG. 6 is an exploded perspective view showing the present invention in parallel. The figure discloses that the metal conductive layer group (4) is electrically connected to the power storage device (2) in parallel.

Among them, the metal conductive layer group (4) can not only be applied to the series, because the current-resistant characteristic can be safely applied to the battery of the parallel structure, which is advantageous for the extended application range of the present invention.

In the above, the metal conductive layer group (4) is further provided with a spring (46) between the screw joints of the batteries (21), and the metal conductive layer group (4) is It is fixed on the monitoring circuit board (3) in one of the following manners: card bonding, pasting, vapor deposition, sputtering; and the metal conductive layer group (4) is a layer group of the following: copper sheet Conductive layer set, nickel-plated copper conductive layer set, tin-plated copper conductive layer set, nickel-plated iron conductive layer set, nickel-plate conductive layer set.

Wherein, through the addition of the spring (46), the screw joints of the positive and negative electrode cells (211, 212) and the metal conductive layer group (4) are less likely to be loosened due to vibration, and the safety is higher.

Secondly, for different monitoring circuit board (3) designs, different metal conductive layer sets (4) are used to fix the circuit board (3) to withstand greater current.

Furthermore, due to the scope of application, the power requirements are different, so there will be different metal conductive layer groups (4) application requirements, which must be changed according to needs, such as the power battery and the metal conductive layer of the starting battery (4 ), the preferred choice is the copper conductive layer group, and the metal conductive layer group of the 3C battery (4), the preferred choice is the nickel-plated copper conductive layer group, or the tin-plated copper conductive layer group, or nickel plating A set of iron conductive layers or a conductive layer of nickel.

In the above, the monitoring circuit board (3) is further provided with a voltage sensing circuit (32), a set of power supply circuits (33), and a temperature sensing unit corresponding to the respective batteries (21). The temperature sensing unit is electrically connected to the monitoring circuit board (3) in one of the following manners: co-constructed on the monitoring circuit board (3), transmitted through the signal line and the monitoring circuit board (3) connection.

Among them, the use of printed circuits to replace the traditional signal detection line, thereby avoiding the entanglement of wires, causing short circuit, open circuit and other issues.

Secondly, the voltage sensing circuit (32) and the power supply circuit (33) are disposed on the monitoring circuit board (3), which further reduces the difficulty of mounting the monitoring circuit board (3) and improves the overall The yield is improved while maintaining the maintenance convenience of the present invention.

Furthermore, the temperature sensing unit can be installed in different ways according to requirements, and the application elasticity is larger than that of the conventional lithium battery.

In the above, the cover plate (8) is further provided with a baffle plate (81) extending between the storage batteries (21) for supporting and supporting the storage batteries (21);

The cover plate (8), at the top end surface thereof, corresponding to the positive and negative batteries (211, 212) of the respective batteries (21), further provided with a polarity indication map (82) for preventing dullness;

Further, at the top end faces of the positive and negative electrode cells (211, 212), a polarity indicating portion (214) for identifying polarity is further provided, and the positive electrode cell (211) is coated with a surface. A polarity marking coating (215) for identifying polarity.

Among them, the use of the baffle plate (81) allows collisions between the batteries (21) without vibration, and is more stable.

Secondly, through the cooperation of the polarity indication map (82), the polarity indication portion (214), and the polarity indication coating layer (215), the invention is assembled due to the wrong polarity, causing damage to the battery or the circuit board. Minimize and effectively maintain the quality of the product.

FIG. 7 is a schematic cross-sectional view showing the II-II cross-section of the present invention, and FIG. 8 is a schematic cross-sectional view showing the present invention as shown in FIG. The invention is a schematic diagram of a three-dimensional implementation when the invention is applied with another handle and a second mating portion.

The figure shows that the top end surface of the battery case (1) is further pivoted between a state perpendicular to the surface of the battery case (1) and a state flattened on the surface of the battery case (1). a T-shaped handle (20); two ends of the pivotal portion of the handle (20) are respectively provided with a pivotal block (30) that is fastened to the top surface of the battery case (1); The pivoting portion of the handle (20) is further configured to cooperate with the pivoting blocks (30) and deviate from the axis of the handle (20), and the handle (20) can be perpendicular to the battery case. (1) When the surface is forced, the handle (20) is automatically turned to be flattened to the battery case (1) A shaft (40) in the state of the surface.

Among them, through the setting method of the handle (20), the handle (20) can not stand upright for a long time, and can automatically return to the original position, avoiding the consumer forgetting to lift the handle after using the handle (20). (20) Returning to the original position, causing the problem of the top to the shelter, allowing the consumer to use the present invention more comfortably and freely.

In the above, the handle (20) is adjacent to a side of the battery case (1), further provided with a first mating portion (201); and the battery case (1) corresponding to the first a matching portion (201) is further provided with a second engaging portion (12) that can cooperate with the first engaging portion (201) to avoid a short circuit problem due to water; and the first first engaging portion (201), It is one of the following structures: a ridge, a groove; and the second engaging portion (12), which is configured to correspond to the first engaging portion (201): a ridge, a groove .

The positive electrode pile head (5) and the negative electrode pile head (6) are separated by the cooperation of the first fitting portion (201) and the second fitting portion (12), thereby effectively preventing the water or other liquid from flowing through the battery. The top surface of the shell (1) turns on both, causing a short circuit or even a problem of battery damage.

Secondly, according to the application requirement, the first mating portion (201) can be selectively used from the ridge or the groove, and the second mating portion (12) corresponds to the first mating portion (201). A mating portion (201) is a rib, and the second mating portion (12) is a groove; when the first mating portion (201) is a groove, the second mating portion (12) is a rib.

It can be seen that the present invention solves the problem of excessive wire, assembly cost and high defect rate in the lithium battery through the cooperation of the monitoring circuit board (3), the metal conductive layer group (4) and the battery management system (7). The printed circuit board cannot withstand the problem of continuous discharge of large current, and the reset button (31) is applied to provide an emergency power supply function, and the cover plate (8) is used to extend the service life of the present invention. The traditional lithium battery is more industrially utilized, functional and practical.

The structure, features and effects of the present invention are described in detail above based on the embodiments shown in the drawings. Since the novel and progressive requirements are met, the invention patent application is filed according to the law; however, the above description is only a preferred embodiment of the present invention. For example, the present invention is not limited by the scope of the invention, and modifications that are in accordance with the meaning of the present invention are intended to be within the scope of the invention as long as they are within the scope of the invention.

1‧‧‧ battery case

11‧‧‧ accommodating space

12‧‧‧Second Matching Department

2‧‧‧Power storage device

21‧‧‧Battery

211‧‧‧ positive battery

212‧‧‧Negative battery

213‧‧‧Safety relief valve

214‧‧‧Polarity marking department

215‧‧‧Polar label coating

3‧‧‧Monitoring board

31‧‧‧Reset button

32‧‧‧Voltage sensing circuit

33‧‧‧Temperature sensing circuit

4‧‧‧Metal conductive layer group

41‧‧‧positive metal conductive layer

42‧‧‧Negative metal conductive layer

43‧‧‧Series metal conductive layer

44‧‧‧Parallel metal conductive layer

45‧‧‧Switch unit

46‧‧‧ Spring

5‧‧‧positive pile head

6‧‧‧Negative pile head

7‧‧‧Battery Management System

71‧‧‧Battery Management Board

8‧‧‧ Cover

81‧‧‧Baffle

82‧‧‧Polarity map

9‧‧‧Communication slot

10‧‧‧ cable

20‧‧‧提提

201‧‧‧First Coordination Department

30‧‧‧ pivot block

40‧‧‧ shaft

A‧‧‧ positive output

B‧‧‧Negative output

Figure 1: A perspective view of the invention.

Figure 2: An exploded schematic view of the invention.

Figure 3 is a partial exploded view of Figure 2.

Figure 4 is a schematic cross-sectional view of the I-I of the present invention.

Fig. 5 is a schematic exploded view of the present invention in combination with another metal conductive layer set.

Figure 6 is an exploded perspective view of the present invention when implemented in parallel.

Fig. 7 is a schematic view showing the II-II cross-section of the present invention.

Figure 8 is a schematic perspective cross-sectional view showing the application of the present invention in cooperation with the second mating portion.

Fig. 9 is a perspective view showing the three-dimensional implementation of the present invention in combination with another handle and a second mating portion.

Fig. 10 is a perspective view showing the stereoscopic implementation of the reset button of the present invention.

Figure 11 is a perspective view of another embodiment of the present invention.

Figure 12 is an exploded perspective view of another embodiment of the present invention.

Figure 13 is a partial exploded view of Figure 12.

Figure 14 is a schematic cross-sectional view of III-III of another embodiment of the present invention.

Figure 15 is an exploded perspective view showing another embodiment of the present invention in conjunction with another way of connecting a battery management system.

1‧‧‧ battery case

11‧‧‧ accommodating space

2‧‧‧Power storage device

21‧‧‧Battery

3‧‧‧Monitoring board

31‧‧‧Reset button

41‧‧‧positive metal conductive layer

42‧‧‧Negative metal conductive layer

5‧‧‧positive pile head

6‧‧‧Negative pile head

7‧‧‧Battery Management System

20‧‧‧提提

30‧‧‧ pivot block

A‧‧‧ positive output

B‧‧‧Negative output

Claims (10)

A modular battery, comprising: a battery case (1) having an accommodating space (11); one set in the accommodating space (11), comprising a plurality of one ends having positive and negative batteries (211, 212) and a safety relief valve (213), and a storage device (2) of the battery (21) arranged in a plane of the power supply end; one of the storage devices (11) is located in the storage space (11), and is located in the power storage device ( 2) at the top side, the power storage device (2) is covered, and the monitoring circuit board (3) for monitoring the voltage and temperature of each battery (21) can be provided; one set is located in the accommodating space (11), located at The top surface of the monitoring circuit board (3) is electrically connected to the batteries (21), and has a thickness greater than the thickness of the printed circuit of the monitoring circuit board (3), and has a positive output terminal (A) and a negative output terminal (B). a metal conductive layer group (4); one connected to the positive output terminal (A), one end protruding from the positive electrode pile head (5) of the battery case (1); one connected to the negative electrode output end (B), a negative electrode pile head (6) protruding from the battery case (1) at one end; and a battery management system (7) disposed in the accommodating space (11) and electrically connected to the monitoring circuit board (3); Monitoring circuit board 3) further comprising restarting the battery management system (7) when the battery management system (7) is low in the storage capacity of each of the storage batteries (21) and the battery management system (7) determines and stops the power supply, a reset button (31) for forcing the respective batteries (21) to continue to supply power; and between the power storage device (2) and the monitoring circuit board (3), a safety relief valve (213) is further disposed to cover The cover plate (8) that prevents the monitoring circuit board (3) from being eroded by the leaked battery liquid. The modular battery according to claim 1, characterized in that: the battery management system (7) is co-constructed on the monitoring circuit board (3); The monitoring circuit board (3) is one of the following: a double-layer printed circuit board, a multilayer printed circuit board. The modular battery according to claim 1, characterized in that: the battery management system (7) is a battery management circuit board (71) disposed outside the monitoring circuit board (3); The management circuit board (71) is electrically connected to the monitoring circuit board (3) through one of the following modes: a communication slot (9) and a cable (10); and the monitoring circuit board (3), It is one of the following: a two-layer printed circuit board, a multilayer printed circuit board. The modular battery according to claim 1, characterized in that the metal conductive layer group (4) is electrically connected to the power storage device (2) in one of the following manners: series, parallel, and series connection. Adding a parallel connection; and the metal conductive layer group (4) includes a positive electrode metal conductive layer (41) corresponding to the positive electrode output terminal (A) and connected to the positive electrode pile head (5); a negative electrode metal conductive layer (42) connected to the negative electrode output terminal (B) and the negative electrode pile head (6); the metal conductive layer group (4) is connected in series, and the power storage device (2) When electrically connected, at least one series of metal conductive layers (43) are further included; and the metal conductive layer group (4) is connected in parallel to the power storage device (2). Included in at least one parallel metal conductive layer (44); the metal conductive layer group (4) is connected in series and in parallel, and electrically connected to the power storage device (2), further comprising at least one series metal a conductive layer (43) and a parallel metal conductive layer (44); further a metal conductive layer group (4), which is through a screwing manner, Each battery (21) is electrically connected. The modular battery according to claim 4, characterized in that: at the input end of the negative metal conductive layer (42), a plurality of switch units (45) are further provided, and the switch unit (45) is Is one of the following or a mixture: Mosfet, relay. The modular battery according to claim 4, wherein the metal conductive layer group (4) is further provided with a spring (46) between the screw joints of the batteries (21); The metal conductive layer group (4) is fixed on the monitoring circuit board (3) in one of the following manners: snapping, pasting, vapor deposition, sputtering; and the metal conductive layer group (4) It is a layer group of the following: a copper conductive layer group, a nickel-plated copper conductive layer group, a tin-plated copper conductive layer group, a nickel-plated iron conductive layer group, and a nickel-plate conductive layer group. The modular battery according to claim 1, wherein the monitoring circuit board (3) is further provided with a voltage sensing circuit (32) and a group corresponding to the respective batteries (21). a power supply circuit (33), a temperature sensing unit; the temperature sensing unit is electrically connected to the monitoring circuit board (3) in one of the following manners: co-constructed on the monitoring circuit board (3), through the signal line and The monitoring circuit board (3) is electrically connected. The modular battery according to claim 1, wherein the cover plate (8) has a bottom end surface further extending between the batteries (21) for reinforcing the storage batteries ( 21) a baffle plate (81); and the cover plate (8) has a top end face corresponding to the positive and negative cells (211, 212) of each of the batteries (21), and is further provided with a foolproof The polarity indication map (82) is used; at the top end faces of the positive and negative electrode cells (211, 212), a polarity indicating portion (214) for identifying polarity is further provided, and the positive electrode cell (211) is provided. The surface is further coated with a polarity marking coating (215) for identifying the polarity. The modular battery according to claim 1, characterized in that: at the top end surface of the battery case (1), a pivoting member is disposed perpendicular to the surface of the battery case (1), and is attached to the battery. a T-shaped handle (20) is switched between the states of the surface of the shell (1); and the two ends of the pivoting portion of the handle (20) are respectively respectively connected to the top surface of the battery case (1) The pivoting block (30); the pivoting portion of the aforementioned handle (20) is further provided with the aforementioned pivoting block (30) Cooperating, deviating from the axis of the handle (20), and forcing the handle (20) to automatically flatten to the battery case (1) when the handle (20) is perpendicular to the surface of the battery case (1) A shaft (40) in the state of the surface. The modular battery according to claim 9, wherein the handle (20) is adjacent to a side of the battery case (1) and further provided with a first mating portion (201); The battery case (1) corresponding to the first mating portion (201) is further provided with a second mating portion that can cooperate with the first mating portion (201) to avoid a short circuit problem due to water ( 12); the foregoing first mating portion (201), which is one of the following structures: a ridge, a groove; and the second mating portion (12), which is configured by one of the following to correspond to the foregoing The first mating portion (201): a ridge and a groove.