A battery pack with dual voltage output

Abstract

The utility model relates to battery management technical field, concretely relates to a kind of battery pack for dual-voltage output, including main casing and support seat, circuit board and battery block are set in main casing, support seat is set in the inside of main casing in pairs, and circuit board is erected on two side support seats;The two ends of battery block are fixed in the limiting slot of two side support seats correspondingly, several battery blocks are connected together to form battery pack by conducting sheet in series or in parallel, conducting sheet is arranged on the side wall of support seat, and the terminal on conducting sheet and circuit board are electrically connected.The utility model divides several batteries in the inside of battery casing, and sets the terminal outside, the polarity distribution of terminal exists difference in different circuit, based on the connection relationship of the public positive pole, public negative pole and the terminal of a group of battery pack, the same quantity of battery, change connection relationship, output different voltage, different equipment is suitable for, improve the compatibility of battery pack.

Description

Technical Field

[0001] This utility model relates to the field of battery management technology, and in particular to a battery pack for dual voltage output. Background Technology

[0002] For battery packs composed of multiple cells, in order to accommodate main units with different voltages, the multiple cells are divided into battery groups of the same number. The two battery groups can be connected in series or in parallel to output voltage.

[0003] By extending corresponding battery connectors onto the circuit board and using these connectors as nodes to change the battery connection method, a complex and costly approach can be adopted. With a large number of batteries, the battery packs and connectors are stacked in multiple layers, resulting in high local loads on the circuit board. Frequent plugging and unplugging can cause crosstalk and interference between the current and voltage at the corresponding nodes, affecting circuit stability. This method is also structurally complex, costly, and prone to battery damage over extended periods. Furthermore, once the batteries and connectors are stacked in multiple layers, the structure becomes fixed, limiting its applicability and accommodating a wider range of usage needs.

[0004] To address the problems in the existing technology, this utility model provides a battery pack for dual voltage output. Utility Model Content

[0005] The purpose of this invention is to provide a dual-voltage output battery pack to solve the technical problems in the prior art, such as the stacked and layered layout of battery packs, low compatibility, poor circuit stability during long-term use, and easy damage to the battery.

[0006] The technical solution of this utility model is: a battery pack for dual voltage output, including a main shell and a support base. A circuit board and a battery block are arranged inside the main shell. The support bases are arranged in pairs inside the main shell. The circuit board is mounted on the support bases on both sides. The two ends of the battery block are fixed in the limiting grooves of the support base on both sides. Several battery blocks are connected in series or in parallel to form a battery pack by conductive sheets. The conductive sheets are arranged on the side wall of the support base and are electrically connected to the terminals on the circuit board.

[0007] Preferably, the terminal includes an external positive terminal and an external negative terminal; the external positive terminal of the terminal is connected to the positive terminal of an external device, and the external negative terminal of the terminal is connected to the negative terminal of an external device; One set of conductive plates on one side of the support is set as the positive male terminal, and another set of conductive plates on the other side of the support is set as the negative male terminal. The positive and negative external terminals are connected to the positive or negative male terminals on the support on one side.

[0008] Preferably, the battery block is provided with ten, and five batteries are connected in series to form a battery pack; five sets of conductive plates are provided on one side of the support base, and a male positive terminal and a male negative terminal are respectively provided on one set of conductive plates; The positive terminals include the first and second terminals; the negative terminals include the third, fourth, fifth, and sixth terminals. The terminals are connected by conductive inserts to connect the corresponding battery packs in series or in parallel, forming a power supply circuit between the battery packs and external devices.

[0009] Preferably, the first terminal and the second terminal are respectively configured as positive terminals, with the first terminal connected to the positive terminal of an external device and the positive terminal of the first male terminal on one side of the support base; The fifth terminal is set as the positive terminal, the sixth terminal is set as the negative terminal, and the fifth terminal and the sixth terminal are connected as one unit by a conductive insert. The sixth terminal is connected to the first male negative terminal on the other side of the support base, and the fifth terminal is connected to the second male positive terminal on the other side of the support base. The third and fourth terminals are respectively set as negative terminals. The fourth terminal is connected to the negative terminal of the external device and the second male negative terminal on the other side of the support base, forming a series battery pack circuit to supply power to the outside.

[0010] Preferably, the first terminal and the second terminal are respectively set as positive terminals, and the first terminal and the second terminal are connected as one unit by a conductive plug. The first terminal is connected to the positive terminal of the external device and the second male positive terminal on the single-sided support, and the second terminal is connected to the first male positive terminal on the single-sided support. The third and fourth terminals are respectively set as negative terminals, and the third and fourth terminals are connected by conductive inserts. The fourth terminal is connected to the negative terminal of the external device and the second male negative terminal on the other single-sided support. The third terminal is connected to the first male negative terminal on the other single-sided support, forming a parallel battery pack circuit to supply power to the outside.

[0011] Preferably, all conductive sheets are provided with recesses corresponding to the ends of the battery blocks, and the number of recesses arranged on one side of the support base is consistent with the number of battery blocks.

[0012] Preferably, the main housing includes an upper housing, a lower housing, and a bottom cover; External insertion holes are provided on the upper housing, and each external insertion hole corresponds to a terminal.

[0013] Compared with the prior art, the advantages of this utility model are: This invention divides several batteries inside the battery casing into battery packs and sets external terminals. In different circuits, the polarity distribution of the terminals varies. Based on the connection relationship between the male positive terminal, the male negative terminal of the battery pack and a set of terminals, the same number of batteries can output different voltages by changing the connection relationship, making them suitable for different devices and improving the compatibility of the battery pack.

[0014] The terminal layout provided by this utility model has a simple structure. The interlocking corner structure and the corresponding connecting device structure in the battery pack structure are simple. Furthermore, the single-layer terminal structure eliminates interference between terminals and improves conductivity. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a three-dimensional structural diagram of the support base supporting and mounting the circuit board according to the present invention; Figure 2 This is a schematic diagram of the structure of the main housing described in this utility model; Figure 3 This is a schematic diagram showing the parallel connection of the battery pack described in this utility model for external power supply. Figure 4 This is a schematic diagram showing the connection of the battery pack of this utility model in series for external power supply; The components include: 1. Support base; 2. Conductive sheet; 3. Terminal; 4. Circuit board; 5. Main housing; 6. Conductive insert; 7. Limiting groove; 8. Recess; 31. First terminal; 32. Second terminal; 33. Third terminal; 34. Fourth terminal; 35. Fifth terminal; 36. Sixth terminal; 51. Upper housing; 52. Lower housing; 53. Bottom cover; 54. External socket. Detailed Implementation

[0016] The present invention will be further described in detail below with reference to specific embodiments: like Figure 1 As shown, a dual-voltage output battery pack includes a main housing 5 and a support base 1. The support bases 1 are arranged in pairs inside the main housing 5. A circuit board 4 and a battery block are arranged inside the main housing 5. The circuit board 4 is mounted on the two side support bases 1. The battery block is installed in the cavity between the circuit board and the two side support bases 1, and the two ends of the battery block are fixed in the limiting grooves 7 of the two side support bases 1. All conductive sheets 2 are provided with concave points 8 corresponding to the ends of the battery blocks. The number of concave points 8 arranged on one side support base 1 is consistent with the number of battery blocks.

[0017] Combined with appendix Figure 2As shown, the main housing 5 includes an upper housing 51, a lower housing 52, and a bottom cover 53; an external insertion hole 54 is provided on the upper housing 51, and the external insertion hole 54 corresponds one-to-one with the terminal 3.

[0018] Terminal 3 includes an external positive terminal and an external negative terminal; the external positive terminal of the terminal is connected to the positive terminal of the external device, and the external negative terminal of the terminal is connected to the negative terminal of the external device.

[0019] Several battery cells are connected in series or parallel to form a battery pack via conductive plates 2. The conductive plates 2 are arranged on the side wall of the support base 1 and are electrically connected to the terminals 3 on the circuit board 4. One set of conductive plates 2 on one side of the support base 1 is set as the positive terminal of the male terminal, and another set of conductive plates 2 on the other side of the support base 1 is set as the negative terminal of the male terminal. The external positive and negative terminals are connected to the corresponding positive and negative terminals of the male terminal.

[0020] See attached document Figure 3 Or attached Figure 4 As shown, in this embodiment, ten battery blocks are provided, and five batteries are connected in series to form a battery pack; five sets of conductive plates 2 are provided on the single-sided support 1, and a male positive terminal or a male negative terminal is provided on one set of conductive plates 2.

[0021] The positive terminals include a first terminal 31 and a second terminal 32; the negative terminals include a third terminal 33, a fourth terminal 34, a fifth terminal 35, and a sixth terminal 36, and a seventh terminal for connecting to a power source to supply power. The terminals are connected by conductive inserts 6 to connect the corresponding battery packs in series or parallel, forming a power supply circuit between the battery packs and external devices.

[0022] In one or other embodiments, taking two battery packs consisting of the aforementioned ten batteries as an example, a "5-in-10-in-1" configuration achieves 40V series power supply. In this embodiment, the connection relationship between the positive and negative terminals of the terminals, batteries, and conductive sheets is specifically as follows: (Refer to Appendix) Figure 4 As shown, the first terminal 31 and the second terminal 32 are respectively set as positive terminals. The first terminal 31 is connected to the positive terminal of the external device and the positive terminal of the first male terminal on the single-sided support 1.

[0023] The fifth terminal is set as the positive terminal, and the sixth terminal 36 is set as the negative terminal. The fifth terminal 35 and the sixth terminal 36 are connected as one unit through the conductive insert 6. The sixth terminal 36 is connected to the first male negative terminal on the other side of the support 1, and the fifth terminal 35 is connected to the second male positive terminal on the other side of the support 1.

[0024] The third terminal 33 and the fourth terminal 34 are respectively set as negative terminals. The fourth terminal 34 is connected to the negative terminal of the external device and the second male negative terminal on the other side of the support 1; forming a series battery pack circuit to supply power to the outside.

[0025] In another embodiment or other implementation, taking two battery packs consisting of the aforementioned ten batteries as an example, a "5 series 2 parallel" configuration is used to achieve 20V parallel power supply. In this embodiment, the connection relationship between the terminals, batteries, and the male positive and male negative terminals of the conductive plates is specifically as follows: Refer to the attached... Figure 3 As shown, the first terminal 31 and the second terminal 32 are respectively set as positive terminals, and the first terminal 31 and the second terminal 32 are connected as one unit through the conductive insert 6. The first terminal 31 is connected to the positive terminal of the external device and the first male positive terminal on the single-sided support 1.

[0026] The third terminal 33 and the fourth terminal 34 are respectively set as negative terminals, and the third terminal 33 and the fourth terminal 34 are connected by a conductive insert 6. The fourth terminal 34 is connected to the negative terminal of the external device and the first male negative terminal on the other single-sided support 1 to form a parallel battery pack circuit for external power supply.

[0027] In summary, this utility model divides several batteries inside the battery casing into battery packs and sets external terminals. In different circuits, the polarity distribution of the terminals varies. Based on the connection relationship between the male positive terminal, the male negative terminal of the battery pack and the set of terminals, the same number of batteries can output different voltages by changing the connection relationship, making them suitable for different devices and improving the compatibility of the battery pack.

[0028] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and therefore, all changes falling within the meaning and scope of the equivalents of the claims are intended to be included within this utility model.

Claims

1. A battery pack for dual voltage output, characterized in that, It includes a main housing and a support base. A circuit board and a battery block are disposed inside the main housing. The support bases are arranged in pairs inside the main housing, and the circuit board is mounted on the support bases on both sides. The two ends of the battery block are fixed in the limiting grooves of the support base on both sides. Several battery blocks are connected in series or in parallel to form a battery pack by conductive sheets. The conductive sheets are arranged on the side wall of the support base and are electrically connected to the terminals on the circuit board.

2. A battery pack for dual voltage output according to claim 1, characterized in that, The terminal includes an external positive terminal and an external negative terminal; the external positive terminal of the terminal is connected to the positive terminal of an external device, and the external negative terminal of the terminal is connected to the negative terminal of an external device. One set of conductive plates on one side of the support is set as the positive male terminal, and another set of conductive plates on the other side of the support is set as the negative male terminal. The positive and negative external terminals are connected to the positive or negative male terminals on the support on one side.

3. A battery pack for dual voltage output according to claim 2, characterized in that, The battery block is provided with ten units, and five batteries are connected in series to form a battery pack; five sets of conductive plates are provided on one side of the support base; The positive terminals include the first and second terminals; the negative terminals include the third, fourth, fifth, and sixth terminals. The terminals are connected by conductive inserts to connect the corresponding battery packs in series or in parallel, forming a power supply circuit between the battery packs and external devices.

4. A battery pack for dual voltage output according to claim 3, characterized in that, The first terminal and the second terminal are respectively set as positive terminals, and the first terminal is connected to the positive terminal of the external device and the first male positive terminal on one side of the support base; The fifth terminal is set as the positive terminal, the sixth terminal is set as the negative terminal, and the fifth terminal and the sixth terminal are connected as one unit by a conductive insert. The sixth terminal is connected to the first male negative terminal on the other side of the support base, and the fifth terminal is connected to the second male positive terminal on the other side of the support base. The third and fourth terminals are respectively set as negative terminals. The fourth terminal is connected to the negative terminal of the external device and the second male negative terminal on the other side of the support base, forming a series battery pack circuit to supply power to the outside.

5. A battery pack for dual voltage output according to claim 3, characterized in that, The first terminal and the second terminal are respectively set as positive terminals, and the first terminal and the second terminal are connected as one unit by a conductive plug. The first terminal is connected to the positive terminal of the external device and the positive terminal of the second male terminal on the single-sided support; the second terminal is connected to the positive terminal of the first male terminal on the single-sided support. The third and fourth terminals are respectively set as negative terminals, and the third and fourth terminals are connected by conductive inserts. The fourth terminal is connected to the negative terminal of the external device and the second male negative terminal on the other single-sided support. The third terminal is connected to the first male negative terminal on the other single-sided support, forming a parallel battery pack circuit to supply power to the outside.

6. A battery pack for dual voltage output according to claim 1, characterized in that, All conductive sheets are provided with corresponding recesses at the ends of the battery blocks, and the number of recesses arranged on one side of the support base is the same as the number of battery blocks.

7. A battery pack for dual voltage output according to claim 1, characterized in that, The main housing includes an upper housing, a lower housing, and a bottom cover; External insertion holes are provided on the upper housing, and each external insertion hole corresponds to a terminal.

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