Battery system

Abstract

The invention discloses a battery system which comprises a plurality of mutually connected battery units, any battery unit at least comprises a pair of two oppositely arranged first connecting surfaces and a pair of two oppositely arranged second connecting surfaces, any first connecting surface is provided with a connecting part, and any second connecting surface is provided with a connecting matching part; when the two battery units are connected, the connecting part on one battery unit is suitable for being connected with the connecting matching part on the other battery unit, so that the two battery units are connected; the connection part is provided with a first contact part, the connection matching part is internally provided with a second contact part, and when the connection part is connected with the connection matching part, the first contact part abuts against the second contact part so as to electrically connect two adjacent battery units. The battery system with the structure is beneficial to improving the practicability of the battery system.

Description

Technical Field

[0001] The present invention relates to the technical field of batteries, and in particular to a battery system. Background Art

[0002] A battery is a cup, tank or other container or part of a composite container that contains an electrolyte solution and metal electrodes to generate an electric current. It is a device that can convert chemical energy into electrical energy. Batteries have positive and negative electrodes, and their performance parameters mainly include electromotive force, capacity, specific energy and resistance.

[0003] In the prior art, the capacity of a single battery is limited. Therefore, when using a battery to provide power to a device with a large capacity requirement, a single battery alone cannot meet the capacity requirement of the device. At this time, multiple batteries need to be connected in parallel to form a battery system to increase the capacity. In this way, the battery system can provide power to the device with a large capacity requirement. At present, when multiple batteries are connected in parallel to form a battery system, a housing is often used to accommodate the batteries. When placing the batteries in the housing, the positive and negative poles of the two adjacent batteries are reversed. Then, the positive and negative poles of all the batteries are electrically connected in sequence through two connectors, and the two connectors are used as the positive and negative poles of the battery system, respectively, to form a battery system with a large capacity.

[0004] However, the above-mentioned assembly method can only realize the requirement of assembling multiple batteries into a battery system, but does not take into account the installation requirements of the battery system, so that the assembled battery system can only be used in a specific installation environment, and cannot meet most installation environments, resulting in low practicality. Summary of the invention

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the defect that the existing battery system cannot meet most installation environments, resulting in low practicality of the battery system.

[0006] To this end, the present invention provides a battery system, comprising:

[0007] A plurality of interconnected battery cells, any of which comprises at least a pair of two first connecting surfaces disposed opposite to each other and a pair of two second connecting surfaces disposed opposite to each other, any of which is provided with a connecting portion, and any of which is provided with a connecting mating portion;

[0008] Wherein, when connecting two of the battery cells, the connecting portion on one of the battery cells is suitable for connecting with the connecting matching portion on the other battery cell to connect the two battery cells; a first contact portion is provided on the connecting portion, and a second contact portion is provided in the connecting matching portion, and when the connecting portion and the connecting matching portion are connected, the first contact portion abuts against the second contact portion to electrically connect the two adjacent battery cells.

[0009] Optionally, in the above-mentioned battery system, the connecting portion and the connecting matching portion are both through-type structures arranged on the battery unit.

[0010] Optionally, in the above-mentioned battery system, the connecting portion is a connecting track, the connecting matching portion is a connecting slot, the first contact portion is arranged on a side wall on one side of the connecting track, and the second contact portion is arranged on an inner wall of a slot on one side of the connecting slot.

[0011] Optionally, in the above-mentioned battery system, the first contact portion is an overlying power contact, the overlying power contact is recessed on the side wall surface of the connecting portion, and the second contact portion is a retractable spring contact.

[0012] Optionally, in the battery system described above, the connecting portion is provided with an abutting portion, and the connecting fitting portion is provided with an abutting fitting portion, and when the connecting portion and the connecting fitting portion are connected, the abutting portion abuts against the abutting fitting portion.

[0013] Optionally, in the above-mentioned battery system, the connecting portion is provided with snap-fitting portions on two opposite sides, and the connecting fitting portion is provided with snap-fitting portions on two opposite sides, and when the connecting portion and the connecting fitting portion are connected, the snap-fitting portions snap-fit ​​with the snap-fitting portions.

[0014] Optionally, in the above-mentioned battery system, all the first connecting surfaces and all the second connecting surfaces are provided with a plurality of anti-slip portions arranged at intervals.

[0015] Optionally, in the above-mentioned battery system, the battery unit also includes a third connection surface, the third connection surface is arranged between all the first connection surfaces and the second connection surfaces, and a plurality of first interfaces and second interfaces are opened on the third connection surface, and the first interface and the second interface are both suitable for connecting to external equipment.

[0016] Optionally, in the above-mentioned battery system, the battery unit further includes a control component, the control component is disposed in the battery unit and electrically connected to the battery unit, and the first interface and the second interface are both electrically connected to the control component.

[0017] Optionally, in the above-mentioned battery system, a display unit is further provided on the third connection surface, the display unit is electrically connected to the control component, and the display unit is suitable for displaying the power information of the battery unit.

[0018] The technical solution provided by the present invention has the following advantages:

[0019] 1. The battery system provided by the present invention comprises a plurality of interconnected battery cells, wherein any battery cell comprises at least a pair of two first connecting surfaces arranged opposite to each other and a pair of two second connecting surfaces arranged opposite to each other, a connecting portion is arranged on any first connecting surface, and a connecting matching portion is arranged on any second connecting surface; wherein, when connecting two battery cells, the connecting portion on one battery cell is suitable for connecting with the connecting matching portion on another battery cell to connect the two battery cells; a first contact portion is arranged on the connecting portion, and a second contact portion is arranged in the connecting matching portion, and when the connecting portion and the connecting matching portion are connected, the first contact portion abuts against the second contact portion to electrically connect two adjacent battery cells.

[0020] The battery system of this structure is provided with two oppositely arranged first connecting surfaces and two oppositely arranged second connecting surfaces on the battery cells, wherein each first connecting surface is provided with a connecting portion, which in this embodiment is a connecting rail, and each second connecting surface is provided with a connecting matching portion, which in this embodiment is a connecting slide groove, so that when connecting two adjacent battery cells, the connecting portion on one battery cell can be connected to the connecting matching portion on the other battery cell, so that the two battery cells can be connected together, and since each battery cell has two oppositely arranged first connecting surfaces and two second connecting surfaces, a battery cell can be connected to the second connecting surfaces of the other two battery cells respectively through the two first connecting surfaces, or can be connected to the first connecting surfaces of the other two battery cells respectively through the two second connecting surfaces, so that multiple battery cells can be connected together. They are connected to each other. In addition, a first contact portion is provided on the connecting portion of the battery unit, and a second contact portion is provided on the connecting mating portion. In the present embodiment, the first contact portion and the second contact portion are respectively a covering power contact and a retractable spring contact. Therefore, when the connecting portion is connected to the connecting mating portion, the first contact portion can abut against the second contact portion, thereby enabling electrical connection to be achieved between the two battery units connected together through the connecting portion and the connecting mating portion, and integrating the electrical capacities of the two battery units to form the battery system provided in the present embodiment. In this way, the electrical capacity of the battery system can meet the needs of equipment with large electrical capacity requirements. At the same time, since a plurality of battery units can be assembled and disassembled at will, the number of battery units can be adjusted when facing different installation environments, so that the battery system can adapt to different installation environments, which is beneficial to improving the practicality of the battery system.

[0021] 2. In the battery system provided by the present invention, both the connection part and the connection matching part are through-type structures arranged on the battery unit. The connection part is a connection track, the connection matching part is a connection slide slot, the first contact part is arranged on the side wall of one side of the connection track, and the second contact part is arranged on the inner wall of the slot on one side of the connection slide slot. The first contact part is a covering power contact, which is recessed on the side wall surface of the connection part, and the second contact part is a retractable spring contact.

[0022] The battery system of this structure is provided with a through-type structure that both the connection part and the connection matching part are provided on the battery unit, so that when connecting two battery units, the connection part on one battery unit can be inserted into the connection matching part at both ends of the connection matching part on the other battery unit, thereby facilitating the convenience of connecting between the battery units. By providing the connection part as a connection track and providing the connection matching part as a connection slide, the first contact part can be provided on the side wall on one side of the connection track, and the second contact part can be provided on the inner wall of the groove on one side of the connection slide. In this way, the first contact part and the second contact part can be shielded to avoid collision between the first contact part and the second contact part during daily use. At the same time, the first contact part and the second contact part are provided only on one side of the connection track and the connection slide, so that the first contact part and the second contact part can be prevented from abutting against each other and causing a short circuit when the operator makes a mistake in reverse assembly when connecting the two battery units, thereby facilitating the safety of connecting the battery units. By setting the first contact part as a covering power contact and setting the second contact part as a retractable spring contact, the covering power contact can be recessed in the side wall surface of the connecting part when it is set on the connecting part. In this way, the first contact part can be prevented from being bumped during daily use. Since the covering power contact is recessed in the side wall surface of the connecting part, the second contact part is required to actively abut against the first contact part when the connecting part and the connecting mating part are connected. In this way, when the second contact part is a retractable spring contact, the retractable spring contact can always abut against the side wall surface of the connecting part when the connecting part and the connecting mating part are connected, until the connecting part and the connecting mating part are connected in place, the retractable spring contact will abut against the covering power contact and complete the electrical connection between the two battery cells.

[0023] 3. The battery system provided by the present invention has an abutting portion on the connecting portion, and an abutting matching portion on the connecting matching portion. When the connecting portion and the connecting matching portion are connected, the abutting portion and the abutting matching portion abut against each other. The connecting portion has a clamping portion on opposite sides, and the connecting matching portion has a clamping matching portion on opposite sides. When the connecting portion and the connecting matching portion are connected, the clamping portion and the clamping matching portion clamp against each other. All the first connecting surfaces and all the second connecting surfaces are provided with a plurality of anti-slip portions arranged at intervals.

[0024] The battery system of this structure is provided with an abutting portion on the connecting portion and an abutting matching portion on the connecting matching portion. The abutting portion and the abutting matching portion are respectively a spring positioning bead and a positioning groove in this embodiment. When the connecting portion is connected with the connecting matching portion, the spring positioning bead will always abut against the bottom surface of the groove of the connecting matching portion until the connecting portion and the connecting matching portion are connected in place, and the spring positioning bead will extend into the positioning groove. In this way, the stable connection of the two battery cells can be achieved, which is beneficial to improving the connection stability between the two battery cells. The clamping portion is provided on the connecting portion and the clamping matching portion is provided on the connecting matching portion. In this embodiment, the clamping portion and the clamping matching portion are respectively a clamping block and a clamping groove. The clamping portion is specifically provided on two opposite sides of the connecting portion, and the clamping matching portion is also specifically provided on two opposite sides of the connecting matching portion. In this way, when the connecting portion and the connecting matching portion are connected in place, the clamping block will be clamped into the clamping groove, which can further achieve the stable connection of the two battery cells, which is beneficial to further improving the connection stability between the two battery cells. By setting a plurality of anti-slip portions on all the first connecting surfaces and all the second connecting surfaces, the anti-slip portions in this embodiment are anti-slip grooves, and all the anti-slip portions are set at intervals on the first connecting surface and the second connecting surface. When the operator connects two battery cells, the operator can hold the positions where the anti-slip portions are set on the first connecting surface and the second connecting surface. In this way, the friction between the operator's palm and the battery cell can be increased, so that it is convenient for the operator to apply force to the battery cell.

[0025] 4. In the battery system provided by the present invention, the battery cell further includes a third connection surface, the third connection surface is arranged between all the first connection surfaces and the second connection surfaces, and a plurality of first interfaces and second interfaces are provided on the third connection surface, and the first interfaces and the second interfaces are both suitable for connecting to external devices. The battery cell further includes a control component, the control component is arranged in the battery cell and electrically connected to the battery cell, and the first interface and the second interface are both electrically connected to the control component. A display unit is also arranged on the third connection surface, the display unit is electrically connected to the control unit, and the display unit is suitable for displaying the power information of the battery cell.

[0026] The battery system of this structure is provided with a third connection surface on the battery unit, the third connection surface is specifically provided between all the first connection surfaces and all the second connection surfaces, and the third connection member is provided with two first interfaces and a second interface, the first interface and the second interface are respectively a Type-C interface and a USB interface in this embodiment, wherein both the first interfaces can be connected to an external charger, so as to charge the battery unit through the two first interfaces, and the second interface can be connected to an external device to transmit voltage to the outside, so as to realize the charging and discharging function of the battery unit. The control member is provided in the battery unit, the control member is a power management board in this embodiment, the control member is electrically connected to the battery unit, and the first interface and the second interface are also electrically connected to the control member, so that the control member can manage the charging and discharging information of the battery unit, and at the same time, the control member can also connect to the external device through the second interface to realize the download and update of the software. The display part is provided on the third connection surface, the display part is a power display screen in this embodiment, and the display part is electrically connected to the control member, so that the display part can display the power information of the battery unit through the control member. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 A schematic diagram of the structure of a battery unit provided in an embodiment of the present invention;

[0029] Figure 2 A schematic plan view of a first connecting surface provided in an embodiment of the present invention;

[0030] Figure 3 A schematic plan view of a second connecting surface provided in an embodiment of the present invention;

[0031] Figure 4 A schematic plan view of a third connecting surface provided in an embodiment of the present invention;

[0032] Figure 5 A schematic diagram of the structure of a battery system provided in an embodiment of the present invention;

[0033] Description of reference numerals:

[0034] 1-battery unit; 11-first connecting surface; 111-connecting portion; 112-first contact portion; 113-abutting portion; 114-engaging portion; 12-second connecting surface; 121-connection matching portion; 122-second contact portion; 123-abutting matching portion; 124-engaging matching portion; 125-anti-slip portion; 13-third connecting surface; 131-first interface; 132-second interface; 133-display portion. DETAILED DESCRIPTION

[0035] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0037] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0039] Example

[0040] This embodiment provides a battery system, such as Figures 1 to 5As shown, it includes a plurality of interconnected battery cells 1, and any battery cell 1 includes at least a pair of two first connecting surfaces 11 arranged opposite to each other and a pair of two second connecting surfaces 12 arranged opposite to each other, and a connecting portion 111 is arranged on any first connecting surface 11, and a connecting matching portion 121 is arranged on any second connecting surface 12; wherein, when connecting two battery cells 1, the connecting portion 111 on one battery cell 1 is suitable for connecting with the connecting matching portion 121 on another battery cell 1, so as to connect the two battery cells 1; a first contact portion 112 is arranged on the connecting portion 111, and a second contact portion 122 is arranged in the connecting matching portion 121, and when the connecting portion 111 and the connecting matching portion 121 are connected, the first contact portion 112 abuts against the second contact portion 122, so as to electrically connect two adjacent battery cells 1.

[0041] The battery system of the above structure is provided with two oppositely arranged first connecting surfaces 11 and two oppositely arranged second connecting surfaces 12 on the battery cells 1, wherein each first connecting surface 11 is provided with a connecting portion 111, which is a connecting rail in the present embodiment, and each second connecting surface 12 is provided with a connecting matching portion 121, which is a connecting slide in the present embodiment, so that when connecting two adjacent battery cells 1, the connecting portion 111 on one of the battery cells 1 can be connected to the connecting matching portion 121 on the other battery cell 1, so that the two battery cells 1 can be connected together, and since each battery cell 1 has two oppositely arranged first connecting surfaces 11 and two second connecting surfaces 12, one battery cell 1 can be connected to the second connecting surfaces 12 of the other two battery cells 1 respectively through the two first connecting surfaces 11, or can be connected to the first connecting surfaces 11 of the other two battery cells 1 respectively through the two second connecting surfaces 12, so that multiple battery cells 1 can be connected to each other.

[0042] Of course, other relatively arranged connection surfaces may also be provided on each battery cell 1, and connection portions 111 or connection matching portions 121 may also be provided on these connection surfaces, so that one battery cell 1 can be connected to more battery cells 1 at the same time, and all the battery cells 1 connected together can also form a battery system.

[0043] In addition, a first contact portion 112 is provided on the connecting portion 111 on the battery cell 1, and a second contact portion 122 is provided on the connecting mating portion 121. In the present embodiment, the first contact portion 112 and the second contact portion 122 are respectively a covering power contact and a retractable spring contact, so that when the connecting portion 111 is connected to the connecting mating portion 121, the first contact portion 112 can abut against the second contact portion 122, thereby enabling electrical connection between the two battery cells 1 connected together through the connecting portion 111 and the connecting mating portion 121, and integrating the electrical capacities of the two battery cells 1 to form the battery system provided in the present embodiment. In this way, the electrical capacity of the battery system can meet the needs of equipment with large electrical capacity requirements. At the same time, since multiple battery cells 1 can be assembled and disassembled at will, when facing different installation environments, the number of battery cells 1 in the battery system can be adjusted, thereby adjusting the shape of the battery system, thereby enabling the battery system to adapt to different installation environments, which is beneficial to improving the practicality of the battery system.

[0044] Specifically, the battery system provided in this embodiment includes a single-module working mode and a multi-module working mode. In the single-module working mode, the battery system includes only one battery cell 1, and the battery cell 1 can meet the basic requirements of charging and discharging. In the multi-module working mode, the battery system includes multiple battery cells 1, and the multiple battery cells 1 are electrically connected to each other to increase the capacity of the battery system, thereby meeting the needs of devices with large capacity requirements.

[0045] The battery system provided in this embodiment is as follows: Figure 1 As shown, the connecting portion 111 and the connecting matching portion 121 are both through-type structures arranged on the battery unit 1 .

[0046] The battery system of the above structure is configured such that both the connecting portion 111 and the connecting fitting portion 121 are arranged on the battery cell 1 as a through-type structure. Thus, when two battery cells 1 are connected, both ends of the connecting portion 111 on one battery cell 1 can be inserted into the connecting fitting portion 121 on the other battery cell 1, thereby facilitating the convenience of connection between the battery cells 1.

[0047] The battery system provided in this embodiment is as follows: Figure 1 and Figure 4 As shown, the connecting portion 111 is a connecting track, the connecting matching portion 121 is a connecting slide slot, the first contact portion 112 is arranged on the side wall of one side of the connecting track, and the second contact portion 122 is arranged on the inner wall of the slot on one side of the connecting slide slot.

[0048] The battery system of the above structure, by setting the connecting portion 111 as a connecting track and setting the connecting matching portion 121 as a connecting slot, allows the first contact portion 112 to be set on the side wall on one side of the connecting track, and the second contact portion 122 to be set on the inner wall of the slot on one side of the connecting slot. In this way, the first contact portion 112 and the second contact portion 122 can be shielded to avoid collision between the first contact portion 112 and the second contact portion 122 during daily use. At the same time, the first contact portion 112 and the second contact portion 122 are only set on one side of the connecting track and the connecting slot, which can also avoid the situation where the first contact portion 112 and the second contact portion 122 abut and short-circuit when the operator makes a mistake in reverse assembly when connecting two battery cells 1, which is beneficial to improving the safety of the battery cells 1 when they are connected.

[0049] The battery system provided in this embodiment is as follows: Figure 1 and Figure 4 As shown, the first contact portion 112 is a covering power contact, which is recessed on the side wall surface of the connecting portion 111, and the second contact portion 122 is a retractable spring contact.

[0050] The battery system of the above structure, by setting the first contact part 112 as a covering power contact and setting the second contact part 122 as a retractable spring contact, makes it possible for the covering power contact to be recessed in the side wall surface of the connecting part 111 when it is arranged on the connecting part 111, so that the first contact part 112 can be prevented from being bumped in daily use, and because the covering power contact is recessed in the side wall surface of the connecting part 111, the connecting part 111 When connecting with the connecting mating part 121, the second contact part 122 needs to actively abut against the first contact part 112. In this way, when the second contact part 122 is a retractable spring contact, when the connecting part 111 and the connecting mating part 121 are connected, the retractable spring contact can always abut against the side wall surface of the connecting part 111 until the connecting part 111 and the connecting mating part 121 are connected in place, and the retractable spring contact will abut against the covering power contact and complete the electrical connection between the two battery cells 1.

[0051] The battery system provided in this embodiment is as follows: Figures 1 to 3 As shown, the connecting portion 111 is provided with an abutting portion 113 , and the connecting matching portion 121 is provided with an abutting matching portion 123 . When the connecting portion 111 and the connecting matching portion 121 are connected, the abutting portion 113 abuts against the abutting matching portion 123 .

[0052] The battery system of the above structure is provided with an abutting portion 113 on the connecting portion 111 and an abutting fitting portion 123 on the connecting fitting portion 121. The abutting portion 113 and the abutting fitting portion 123 are respectively a spring positioning bead and a positioning groove in the present embodiment. When the connecting portion 111 is connected with the connecting fitting portion 121, the spring positioning bead will always abut with the groove bottom surface of the connecting fitting portion 121 until the connecting portion 111 is connected with the connecting fitting portion 121 in place, and the spring positioning bead will extend into the positioning groove. In this way, a stable connection between the two battery cells 1 can be achieved, which is beneficial to improving the connection stability between the two battery cells 1.

[0053] The battery system provided in this embodiment is as follows: Figures 1 to 3 As shown, the connecting portion 111 is provided with engaging portions 114 on two opposite sides, and the connecting matching portion 121 is provided with engaging portions 124 on two opposite sides. When the connecting portion 111 and the connecting matching portion 121 are connected, the engaging portions 114 engage with the engaging portions 124 .

[0054] The battery system of the above structure is provided with a snap-fitting portion 114 on the connecting portion 111 and a snap-fitting portion 124 on the connecting matching portion 121. The snap-fitting portion 114 and the snap-fitting portion 124 are respectively a snap-fitting block and a snap-fitting groove in the present embodiment. The snap-fitting portion 114 is specifically provided on two opposite sides of the connecting portion 111, and the snap-fitting portion 124 is also specifically provided on two opposite sides of the connecting matching portion 121. In this way, when the connecting portion 111 and the connecting matching portion 121 are connected in place, the snap-fitting block will be snapped into the snap-fitting groove, thereby further realizing a stable connection between the two battery cells 1, which is beneficial to further improve the connection stability between the two battery cells 1.

[0055] The battery system provided in this embodiment is as follows: Figure 1 As shown, all the first connection surfaces 11 and all the second connection surfaces 12 are provided with a plurality of anti-slip portions 125 arranged at intervals.

[0056] The battery system of the above structure is provided with a plurality of anti-skid portions 125 on all the first connecting surfaces 11 and all the second connecting surfaces 12. The anti-skid portions 125 are anti-skid grooves in the present embodiment. All the anti-skid portions 125 are arranged at intervals on the first connecting surfaces 11 and the second connecting surfaces 12. When the operator connects two battery cells 1, the operator can hold the positions on the first connecting surfaces 11 and the second connecting surfaces 12 where the anti-skid portions 125 are arranged. In this way, the friction between the operator's palm and the battery cell 1 can be increased, so as to facilitate the operator to apply force to the battery cell 1 and help to improve the assembly efficiency of the battery system.

[0057] The battery system provided in this embodiment is as follows: Figure 1 and Figure 4As shown, the battery unit 1 also includes a third connection surface 13, which is arranged between all the first connection surfaces 11 and the second connection surfaces 12. The third connection surface 13 is provided with a plurality of first interfaces 131 and second interfaces 132, and both the first interfaces 131 and the second interfaces 132 are suitable for connecting to external devices.

[0058] The battery system of the above structure is provided with a third connection surface 13 on the battery unit 1. The third connection surface 13 is specifically provided between all the first connection surfaces 11 and all the second connection surfaces 12. The third connection member is provided with two first interfaces 131 and a second interface 132. The first interface 131 and the second interface 132 are respectively a Type-C interface and a USB interface in the present embodiment. The two first interfaces 131 can be connected to an external charger, so as to charge the battery unit 1 through the two first interfaces 131. The second interface 132 can be connected to an external device to transmit voltage to the outside, so that the charging and discharging functions of the battery unit 1 can be realized.

[0059] The battery system provided in this embodiment is as follows: Figures 1 to 5 As shown, the battery unit 1 further includes a control component, which is disposed inside the battery unit 1 and electrically connected to the battery unit 1 , and the first interface 131 and the second interface 132 are both electrically connected to the control component.

[0060] The battery system of the above structure is provided with a control component in the battery cell 1. The control component in this embodiment is a power management board. The control component is electrically connected to the battery cell 1, and the first interface 131 and the second interface 132 are also electrically connected to the control component. In this way, the control component can manage the charge and discharge information of the battery cell 1. At the same time, the control component can also be connected to an external device through the second interface 132 to download and update the software.

[0061] The battery system provided in this embodiment is as follows: Figure 1 and Figure 4 As shown, a display unit 133 is further provided on the third connection surface 13 . The display unit 133 is electrically connected to the control component and is suitable for displaying the power information of the battery unit 1 .

[0062] The battery system of the above structure is provided with a display unit 133 on the third connection surface 13. The display unit 133 is a power display screen in this embodiment. The display unit 133 is electrically connected to the control unit, so that the display unit 133 can display the power information of the battery unit 1 through the control unit.

[0063] The battery system provided by the present invention is provided with two oppositely arranged first connecting surfaces 11 and two oppositely arranged second connecting surfaces 12 on the battery cells 1, wherein each first connecting surface 11 is provided with a connecting portion 111, and the connecting portion 111 in the present embodiment is a connecting rail, and each second connecting surface 12 is provided with a connecting matching portion 121, and the connecting matching portion 121 in the present embodiment is a connecting slide groove, so that when connecting two adjacent battery cells 1, the connecting portion 111 on one of the battery cells 1 can be connected with the connecting matching portion 121 on the other battery cell 1, so that the two battery cells 1 can be connected together, and because each battery cell 1 has two oppositely arranged first connecting surfaces 11 and two second connecting surfaces 12, one battery cell 1 can be connected to the second connecting surfaces 12 of the other two battery cells 1 respectively through the two first connecting surfaces 11, or can be connected to the first connecting surfaces 11 of the other two battery cells 1 respectively through the two second connecting surfaces 12, so that multiple battery cells 1 can be connected together. The elements 1 can be connected to each other. In addition, a first contact portion 112 is provided on the connecting portion 111 on the battery unit 1, and a second contact portion 122 is provided on the connecting matching portion 121. The first contact portion 112 and the second contact portion 122 are respectively a covering power contact and a retractable spring contact in this embodiment, so that when the connecting portion 111 is connected to the connecting matching portion 121, the first contact portion 112 can abut against the second contact portion 122, so that the two battery cells 1 connected together by the connecting portion 111 and the connecting matching portion 121 can be electrically connected, and the electrical capacity of the two battery cells 1 is integrated together to form the battery system provided by this embodiment. In this way, the electrical capacity of the battery system can meet the equipment with large electrical capacity requirements. At the same time, since multiple battery cells 1 can be assembled and disassembled at will, the number of battery cells 1 can be adjusted when facing different installation environments, so that the battery system can adapt to different installation environments, which is conducive to improving the practicality of the battery system.

[0064] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A battery system, characterized in that: include: A plurality of interconnected battery units (1), each of the battery units (1) comprising at least a pair of two first connection surfaces (11) arranged opposite to each other and a pair of two second connection surfaces (12) arranged opposite to each other, each of the first connection surfaces (11) being provided with a connection portion (111), and each of the second connection surfaces (12) being provided with a connection matching portion (121); Wherein, when connecting two battery cells (1), the connecting portion (111) on one battery cell (1) is suitable for connecting with the connecting matching portion (121) on the other battery cell (1) so as to connect the two battery cells (1); a first contact portion (112) is provided on the connecting portion (111), and a second contact portion (122) is provided in the connecting matching portion (121); when the connecting portion (111) and the connecting matching portion (121) are connected, the first contact portion (112) abuts against the second contact portion (122) so as to electrically connect the two adjacent battery cells (1).

2. The battery system according to claim 1, characterized in that: The connecting portion (111) and the connecting matching portion (121) are both through-type structures arranged on the battery unit (1).

3. The battery system according to claim 2, characterized in that: The connecting portion (111) is a connecting track, the connecting matching portion (121) is a connecting slide groove, the first contact portion (112) is arranged on a side wall of one side of the connecting track, and the second contact portion (122) is arranged on an inner wall of a groove of one side of the connecting slide groove.

4. The battery system according to claim 3, characterized in that: The first contact portion (112) is a covering power contact, the covering power contact is recessed on the side wall surface of the connecting portion (111), and the second contact portion (122) is a retractable spring contact.

5. The battery system according to any one of claims 1 to 4, characterized in that: The connecting portion (111) is provided with an abutting portion (113), and the connecting matching portion (121) is provided with an abutting matching portion (123); when the connecting portion (111) and the connecting matching portion (121) are connected, the abutting portion (113) abuts against the abutting matching portion (123).

6. The battery system according to claim 5, characterized in that: The connecting portion (111) is provided with snap-fitting portions (114) on two opposite sides, and the connecting matching portion (121) is provided with snap-fitting portions (124) on two opposite sides. When the connecting portion (111) and the connecting matching portion (121) are connected, the snap-fitting portions (114) snap-fit ​​with the snap-fitting portions (124).

7. The battery system according to claim 6, characterized in that: All of the first connecting surfaces (11) and all of the second connecting surfaces (12) are provided with a plurality of anti-slip portions (125) arranged at intervals.

8. The battery system according to claim 1, characterized in that: The battery unit (1) further comprises a third connection surface (13), the third connection surface (13) being arranged between all the first connection surfaces (11) and the second connection surfaces (12), the third connection surface (13) being provided with a plurality of first interfaces (131) and second interfaces (132), the first interfaces (131) and the second interfaces (132) being suitable for connection with external equipment.

9. The battery system according to claim 8, characterized in that: The battery unit (1) further comprises a control component, which is arranged in the battery unit (1) and is electrically connected to the battery unit (1), and the first interface (131) and the second interface (132) are both electrically connected to the control component.

10. The battery system according to claim 9, characterized in that: A display unit (133) is also provided on the third connection surface (13); the display unit (133) is electrically connected to the control component; the display unit (133) is suitable for displaying the power information of the battery unit (1).

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