Double-voltage output battery pack

Abstract

The utility model discloses a dual voltage output battery pack, which comprises a battery pack shell and a battery pack accommodated in the battery pack shell, two connecting parts used for being connected with external electrical equipment are arranged on the battery pack shell, and output terminals used for outputting electric energy to the electrical equipment connected with the connecting parts are arranged on the connecting parts. The output terminals are electrically connected with the battery pack, the output voltages of the output terminals on the two connecting parts are different, the effect that one battery pack outputs two kinds of output voltages is achieved, electric power support is provided for electric tools and electric machines with different working voltages, the battery pack is suitable for more scenes, the occupied space for outgoing carrying is reduced, and the cost is reduced.

Description

Technical Field

[0001] This utility model relates to a battery pack, and more particularly to a battery pack with dual voltage output. Background Technology

[0002] A battery pack is a battery assembly consisting of multiple individual battery cells connected by a certain circuit. As a power supply system, battery packs are widely used in fields such as power tools due to their portability. The motor is driven by the electrical energy stored in the battery pack. After use, the internal electrical energy is reduced, and the battery pack can be removed from the power tool and recharged using an external charging device.

[0003] For example, the Chinese utility model patent CN201728641U discloses a battery pack that is easy to disassemble, which includes a battery pack shell containing a battery portion. The battery pack shell is formed by a base and a top cover being fastened together. The front part of the top cover has an upwardly protruding stop part. The battery pack shell is also provided with a connector. The front end of the connector is rotatably connected to the battery pack shell and can swing up and down relative to the top cover. The middle part of the connector has a protrusion protruding to form a push part. The rear end of the connector protrudes from the rear part of the upper end to form a snap-fit ​​part. The battery pack shell is also provided with a spring that applies an upward elastic force to the lower part of the rear end of the connector.

[0004] Existing battery packs typically have a fixed output voltage. When using multiple power tools or electric machines, multiple battery packs are needed to meet the voltage requirements of different power tools, which is costly, takes up a lot of space, and is not conducive to miniaturization and lightweight development. Utility Model Content

[0005] Since the voltage output of the aforementioned battery pack is fixed, when using multiple power tools or electric machines, multiple battery packs are needed to meet the voltage requirements of different power tools, resulting in high cost and large space occupation. This utility model provides a battery pack with dual voltage output.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a dual-voltage output battery pack, including a battery pack shell and a battery pack housed in the battery pack shell. The battery pack shell is provided with two connection parts for connecting to external electrical equipment. The connection parts are provided with output terminals for outputting electrical energy to the electrical equipment connected to the connection parts. The output terminals are electrically connected to the battery pack. The output voltages of the output terminals on the two connection parts are different.

[0007] A further preferred technical solution of this utility model is as follows: both connecting parts are connecting seats set on the battery pack housing, the two connecting seats are arranged on opposite sides, the left and right sides of the connecting seats are provided with guide grooves that slide with electrical equipment, and one end of the connecting seat in the length direction of the guide groove is provided with a battery pack socket. The battery pack socket is used to insert the electrode plugs on the electrical equipment and connect them to the output terminal. The battery pack housing is provided with two locking devices corresponding to the two connecting seats respectively. The locking devices include a latch, an unlocking button for controlling the movement and unlocking of the latch, and a reset spring.

[0008] A further preferred embodiment of this utility model is as follows: the two connecting seats are respectively disposed on the upper and lower sides of the battery pack housing, and the battery pack ports at the ends of the two connecting seats face opposite directions.

[0009] A further preferred embodiment of this utility model is as follows: the latch and the unlock button are connected by a connecting frame, which is movably mounted on the battery pack housing. The unlock button is located at the end of the connecting frame away from the battery pack port. The battery pack housing has a button opening that exposes the unlock button. The connecting frame has a latch opening for the latch to extend out. A return spring acts on the connecting frame. When the unlock button is pressed by an external force, the connecting frame moves the latch down and retracts it into the latch opening. When the unlock button loses force, the return spring drives the connecting frame, the latch, and the unlock button to move up and reset, causing the latch to move out of the latch opening.

[0010] A further preferred embodiment of this utility model is that the battery pack housing has power display parts at both ends of the guide groove along its length.

[0011] A further preferred embodiment of this utility model is that the battery pack casing is provided with voltage markings corresponding to the two connection parts.

[0012] A further preferred embodiment of this utility model is that the output voltage of the output terminal on one of the connecting parts is 12V, and the output voltage of the output terminal on the other connecting part is 24V.

[0013] A further preferred embodiment of this utility model is as follows: the battery pack housing contains two sets of battery packs, and the output terminals on the two connecting parts are electrically connected to the two sets of battery packs respectively.

[0014] A further preferred embodiment of this utility model is as follows: a battery pack is provided inside the battery pack housing, and two sets of circuits are connected to the battery pack. The output terminals on the two connection parts are electrically connected to the two sets of circuits respectively.

[0015] Compared with the prior art, the advantage of this utility model is that by setting two connection parts on the battery pack housing for connecting to external electrical equipment, the connection parts are provided with output terminals for outputting electrical energy to the electrical equipment connected to the connection parts. The output terminals are electrically connected to the battery pack, and the output voltages of the output terminals on the two connection parts are different. In this way, the battery pack can output two output voltages, so as to provide power support for power tools and electric machines with different working voltages, adapt to more scenarios, reduce the space occupied when carrying them out, and reduce costs. Attached Figure Description

[0016] The present invention will be further described in detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be construed as limiting the scope of the present invention. Furthermore, unless specifically indicated, the drawings are only schematic representations of the composition or structure of the described objects and may contain exaggerated depictions, and the drawings are not necessarily drawn to scale.

[0017] Figure 1 Schematic diagram of the battery pack structure Figure 1 ;

[0018] Figure 2 Schematic diagram of the battery pack structure Figure 2 ;

[0019] Figure 3 This is a side view of the battery pack;

[0020] Figure 4 This is a cross-sectional view of the battery pack;

[0021] Figure 5 Top view of the battery pack;

[0022] Figure 6 This is a schematic diagram showing the connection between the connector and the battery pack housing.

[0023] In the diagram: 1. Battery pack housing; 2. Power display area; 3. Connector; 4. Unlock button; 5. Button opening; 6. Lock opening; 7. Lock; 8. Battery pack socket; 9. Guide slide; 10. Battery pack; 11. Connector frame; 12. Return spring; 13. Output terminal; 14. Limit slide rail; 15. Limit slide groove. Detailed Implementation

[0024] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely descriptive and exemplary and should not be construed as limiting the scope of protection of the present invention.

[0025] It should be noted that similar labels in the following figures indicate similar items; therefore, once an item is defined in one figure, it may not be further defined and explained in subsequent figures.

[0026] Figures 1-6 As shown, the dual-voltage output battery pack includes a battery pack housing 1 and a battery pack 10 housed in the battery pack housing 1. The battery pack housing 1 is provided with two connection parts for connecting to external electrical equipment. The connection parts are provided with output terminals 13 for outputting electrical energy to the electrical equipment connected to the connection parts. The output terminals 13 are electrically connected to the battery pack 10. The output voltages of the output terminals 13 on the two connection parts are different.

[0027] Figure 1 , Figure 2 As shown, by using output terminals 13 with different output voltages on the two connecting parts, it is possible to achieve the effect of one battery pack outputting two output voltages, so as to provide power support for power tools and electric machines with different working voltages, adapt to more scenarios, reduce the space occupied when carrying them, and reduce costs.

[0028] Both connecting parts are connecting seats 3 set on the battery pack housing 1. The two connecting seats 3 are arranged on opposite sides. The left and right sides of the connecting seats 3 are provided with guide grooves 9 that slide with electrical equipment. One end of the connecting seat 3 in the length direction of the guide groove 9 is provided with a battery pack socket 8. The battery pack socket 8 is used to insert the electrode plugs on the electrical equipment and connect them to the output terminal 13. The battery pack housing 1 is provided with two locking devices corresponding to the two connecting seats 3 respectively. The locking devices include a latch 7, an unlocking button 4 for controlling the movement and unlocking of the latch 7, and a return spring 12.

[0029] Figure 4 , Figure 6 As shown, the latch 7 and the unlock button 4 are connected by a connecting bracket 11. The connecting bracket 11 is movably mounted on the battery pack housing 1. The unlock button 4 is located at the end of the connecting seat 3 away from the battery pack port 8. The battery pack housing 1 has a button opening 5 that exposes the unlock button 4, and the connecting seat 3 has a latch opening 6 for the latch 7 to extend out. The return spring 12 acts on the connecting bracket 11. When the unlock button 4 is pressed by external force, the connecting bracket 11 drives the latch 7 to move down and retract into the latch opening 6, thus unlocking. When the unlock button 4 loses force, the return spring 12 drives the connecting bracket 11, the latch 7, and the unlock button 4 to move up and reset, causing the latch 7 to move out of the latch opening 6. The battery pack housing 1 has limit slide rails 14 on both sides, and the connecting bracket 11 has limit slide grooves 15 on both sides that slide in cooperation with the two limit slide rails 14, allowing the connecting bracket 11 to be movably mounted on the battery pack housing 1.

[0030] The power tool has a recessed portion that engages with the connector 3. The recessed portion has raised ribs on both sides that slide with the guide groove 9. The recessed portion has a locking groove that engages with the latch 7. During installation, the connector is slidably inserted into the recessed portion, causing the latch 7 to engage in the locking groove. At this time, the electrode insert in the recessed portion is inserted into the battery pack socket 8 at the end of the connector 3. The electrode insert is electrically connected to the output terminal 13. The latch 7 and the locking groove prevent the connector from disengaging from the recessed portion, allowing the battery pack to be installed on the power tool for power supply. The structure of the battery pack's connector is a conventional structure of existing battery packs, and can be referenced in patent CN201728641 U.

[0031] The two connectors 3 are arranged on opposite sides, which makes the battery pack more compact. Since they are both on the same side, the accommodating area of ​​one side of the battery pack housing 1 will be increased, thus making the overall battery pack volume larger.

[0032] Figures 1-3 As shown, two connecting seats 3 are respectively set on the upper and lower sides of the battery pack housing 1. The battery pack ports 8 at the ends of the two connecting seats 3 face opposite directions. This structural arrangement makes the overall structure more aesthetically pleasing, and the weight on both sides of the battery pack is more even, making it more comfortable to hold. The positional distribution of the two connecting seats 3 ensures that one connecting seat 3 will not interfere with the connection of the other connecting seat 3.

[0033] There are various structures within the battery pack housing 1 that enable the output of different voltages from the two sets of output terminals 13, for example:

[0034] One solution involves installing two battery packs 10 inside the battery pack housing 1, with output terminals 13 on two connecting parts electrically connected to the two battery packs 10 respectively, thereby forming two power supply systems inside, through which different voltages are output respectively.

[0035] In another embodiment, a battery pack 10 is provided inside the battery pack housing 1. Two sets of circuits are connected to the battery pack 10. The output terminals 13 on the two connection parts are electrically connected to the two sets of circuits respectively, thereby forming two power supply systems inside, and outputting different voltages through the two power supply systems respectively.

[0036] The circuit structure that generates two output voltages in this patent is not limited to the two mentioned above; other conventional structures in the field are also applicable to this patent.

[0037] Figures 1-2 As shown, the battery pack housing 1 has power display parts 2 at both ends of the guide slide 9 along its length. The power display parts 2 on both sides are used to display the internal energy storage of the battery pack 10 that is electrically connected to the output terminals 13 on the two connectors 3. When the battery pack is plugged into the power tool through the connector 3, the corresponding power display part 2 is always in front, so that the user can intuitively observe the power status.

[0038] The battery pack housing 1 has voltage markings corresponding to the two connection parts to distinguish the voltage output from the output terminals 13 on the two connection parts, making it convenient for users to select.

[0039] Preferably, the output voltage of the output terminal 13 on one of the connecting parts is 12V, and the output voltage of the output terminal 13 on the other connecting part is 24V.

[0040] The battery pack housing 1 includes an upper half and a lower half, which are snapped together after being aligned.

[0041] The battery pack has a charging port for charging.

[0042] The aforementioned power tools may be handheld polishers.

[0043] The dual-voltage output battery pack provided by this utility model has been described above. Specific examples have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand this utility model and its core ideas. It should be noted that those skilled in the art can make several improvements and modifications to this utility model without departing from its principle, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A battery pack with dual voltage output, comprising a battery pack housing and a battery pack housed within the battery pack housing, characterized in that, The battery pack housing has two connection parts for connecting to external electrical equipment. Each connection part has an output terminal for outputting electrical energy to the connected electrical equipment. The output terminal is electrically connected to the battery pack, and the output voltages of the output terminals on the two connection parts are different.

2. The battery pack with dual voltage output according to claim 1, characterized in that, Both of the aforementioned connecting parts are connecting seats mounted on the battery pack housing. The two connecting seats are arranged on opposite sides. The left and right sides of the connecting seats are provided with guide grooves that slide with electrical equipment. One end of the connecting seat along the length of the guide groove is provided with a battery pack socket. The battery pack socket is used to insert the electrode inserts on the electrical equipment and make electrical connections with the output terminals. The battery pack housing is provided with two locking devices corresponding to the two connecting seats respectively. The locking devices include a latch, an unlocking button for controlling the movement and unlocking of the latch, and a return spring.

3. The battery pack with dual voltage output according to claim 2, characterized in that, The two connectors are respectively located on the upper and lower sides of the battery pack housing, and the battery pack ports at the ends of the two connectors face opposite directions.

4. The battery pack with dual voltage output according to claim 2, characterized in that, The latch and the unlock button are connected by a connecting bracket, which is movably mounted on the battery pack housing. The unlock button is located at the end of the connecting bracket away from the battery pack port. The battery pack housing has a button opening that exposes the unlock button, and the connecting bracket has a latch opening for the latch to extend out. A return spring acts on the connecting bracket. When the unlock button is pressed by external force, the connecting bracket moves the latch down and retracts it into the latch opening. When the unlock button is depressed, the return spring drives the connecting bracket, the latch, and the unlock button to move up and reset, causing the latch to move out of the latch opening.

5. The battery pack with dual voltage output according to claim 3, characterized in that, The battery pack housing has power display sections at both ends of the guide groove along its length.

6. The battery pack with dual voltage output according to claim 1, characterized in that, The battery pack casing has voltage markings corresponding to the two connection points.

7. The battery pack with dual voltage output according to claim 1, characterized in that, The output voltage of the output terminal on one of the connectors is 12V, and the output voltage of the output terminal on the other connector is 24V.

8. The battery pack with dual voltage output according to claim 1, characterized in that, The battery pack housing contains two battery packs, and the output terminals on the two connecting parts are electrically connected to the two battery packs respectively.

9. The battery pack with dual voltage output according to claim 1, characterized in that, The battery pack housing contains a battery pack, and the battery pack is connected to two sets of circuits. The output terminals on the two connection parts are electrically connected to the two sets of circuits respectively.

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