Battery pack

Abstract

The utility model relates to the field of energy storage equipment, and particularly discloses a battery pack which comprises a battery pack shell, a battery cell installed in the battery pack shell and a locking piece movably installed on the battery pack shell, the locking piece is used for locking the battery pack assembled on an electric tool, a display button is installed on the battery pack shell, and the display button is connected with the battery pack shell. The display button is electrically connected with the remaining power indicating lamp, the locking piece is provided with a triggering part, and after the locking piece is triggered, the triggering part can directly act with the display button, so that the remaining power indicating lamp is lightened, the electric quantity of the battery pack can be checked while the locking piece is operated, a user does not need to additionally manually operate the display button, and the user experience is improved. And the use convenience is greatly improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of energy storage devices, in particular to a battery pack. BACKGROUND

[0002] In the use scene of electric tools, the performance and use convenience of the battery pack as a key power supply component are crucial. There are some problems in the battery packs on the market. On the one hand, as for the power display function, most of the battery packs need the user to manually press a special power display button to check the power, the operation steps are cumbersome, and in actual use, the user may forget to check the power, which affects the work efficiency of the electric tool in the use process. CONTENT OF THE UTILITY MODEL

[0003] The utility model at least one specific embodiment aims at solving the defects in the prior art and provides a battery pack.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0005] A battery pack comprises:

[0006] A battery pack shell;

[0007] A battery cell is installed in the battery pack shell;

[0008] A locking member is movably installed on the battery pack shell and is used for locking the battery pack assembled on the electric tool;

[0009] A display button is installed on the battery pack shell and is electrically connected with a display lamp, the locking member has a triggering part, and after the locking member is triggered, the triggering part can directly act on the display button, so that the display lamp is lit.

[0010] Further, the display lamp is a power remaining indicator lamp.

[0011] Further, the locking member comprises a locking part, a button part, a connecting part arranged between the locking part and the button part, and a triggering part arranged on the connecting part;

[0012] The inner side of the button part is provided with an elastic member, one end of the elastic member is in contact with a supporting part on the battery pack shell, and the other end is in contact with the inner wall of the button part.

[0013] Further, the two sides of the battery pack shell are provided with clamping grooves, the clamping grooves are clamped with the electric tool when the battery pack is assembled with the electric tool, the locking part extends into a locking groove on the electric tool, and the battery pack is locked.

[0014] Further, when the button part is pressed, the button part drives the locking part to move downward and away from the locking groove through the connecting part, the elastic member is compressed, and the locking state of the battery pack is released.

[0015] When the connecting part drives the locking part to move downward, the triggering part presses the display button, so that the display button is triggered;

[0016] When the pressing force on the button part disappears, the elastic member drives the button part to reset, and the triggering part is separated from the display button.

[0017] Further, a circuit board is installed in the battery pack shell, the circuit board is electrically connected with the battery cell and the remaining capacity indicator, and the display button is installed on the circuit board.

[0018] Further, the triggering part is configured as a part of the connecting part.

[0019] Further, the protruding direction of the triggering part is toward the display button from the surface of the connecting part.

[0020] Further, the remaining capacity indicator displays different remaining capacities of the battery pack through different light colors.

[0021] Further, the elastic member is a spring.

[0022] The application has the beneficial effects that: the application sets the triggering part on the locking part, when the locking part is triggered, the triggering part can automatically press the display button, so as to light the remaining capacity indicator, realizing that the battery pack capacity can be checked while the locking part is operated, without the user manually operating the display button, greatly improving the convenience of use.

[0023] The application combines the locking function and the capacity display function, reduces the setting of independent parts, simplifies the structure of the battery pack, and reduces the production cost. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or the prior art description. Obviously, the drawings described below are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0025] Figure 1 It is a structure schematic view of the battery pack in some embodiments of the present application.

[0026] Figure 2 It is a top view schematic view of the battery pack in some embodiments of the present application.

[0027] Figure 3 It is a structure schematic view of the battery pack in some embodiments of the present application. Figure 2 It is a sectional view along line A-A.

[0028] Figure 4An assembly view of the battery pack and the power tool. DETAILED DESCRIPTION

[0029] The technical solutions of the utility model will be described clearly and completely in combination with the drawings. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor belong to the protection scope of the utility model.

[0030] Referring to Figure 1 , Figure 2 , Figure 3 , Figure 4 A battery pack 100 comprises a battery pack shell 10, battery cells 20 installed in the battery pack shell 10, and a locking member 30 movably installed on the battery pack shell 10, which is used to lock the battery pack 100 assembled on a power tool 200.

[0031] The battery pack shell 10 is the external protection structure of the whole battery pack, which is made of high-strength and good-insulation materials, such as engineering plastics or aluminum alloy. The internal space is carefully designed to tightly accommodate the battery cells 20 and other electronic components, and to provide a stable installation base for each component. On both sides of the battery pack shell 10, a clamping groove 70 is arranged, which is accurately matched in shape and size with the corresponding clamping structure on the power tool 200, to ensure a tight and stable connection during assembly. The edge of the clamping groove 70 is specially treated and has a certain elasticity and wear resistance, which can ensure that it will not be easily damaged during repeated plugging and unplugging, and can provide reliable positioning and fixing effect.

[0032] The battery cells 20 are the core energy storage components of the battery pack, and various types such as lithium-ion cells and nickel-hydrogen cells can be selected according to different application requirements and performance requirements. In the battery pack 100, the battery cells 20 are stably installed inside the battery pack shell 10 through professional fixing brackets and insulating materials. The battery cells 20 are connected in series or parallel through high-quality connecting plates to meet different voltage and capacity requirements.

[0033] In this embodiment, a display button 40 is installed on the battery pack shell 10, and the locking member 30 has a trigger part 30a. After the locking member 30 is triggered, the trigger part 30a can directly press the display button 40, so that the display button 40 is triggered.

[0034] Further, the battery pack 100 is provided with a display lamp, in this embodiment, the display lamp is a power remaining indicator, the display button 40 is electrically connected to the power remaining indicator, after the display button 40 is actuated, the power remaining indicator is lighted, the power remaining indicator displays different power remaining of the battery pack through different light color, for example, when the power remaining indicator displays red color, it indicates that the power remaining of the battery pack is insufficient, when the power remaining indicator displays green color, it indicates that the power remaining of the battery pack is sufficient.

[0035] The circuit board 100a is installed in the battery pack shell 10, the circuit board 100a is electrically connected to the battery cell 20 and the power remaining indicator, the display button 40 is installed on the circuit board 100a, the circuit board 100a is the control core of the whole battery pack, integrates various electronic components and circuits, is responsible for realizing the charge and discharge control of the battery cell 20, the power monitoring and the communication with the external equipment and the like functions. The power remaining indicator is also electrically connected to the circuit board 100a, and according to different power states, different light colors are displayed to intuitively inform the user of the power remaining of the battery pack.

[0036] Further, the locking member 30 includes a locking portion 301, a button portion 302, a connecting portion 303 arranged between the locking portion 301 and the button portion 302, and a triggering portion 30a arranged on the connecting portion 303.

[0037] The inner side of the button portion 303 is provided with an elastic member 50, the elastic member 50 is preferably a spring, one end of the elastic member 50 is in contact with the supporting portion 60 on the battery pack shell 10, and the other end is in contact with the inner wall of the button portion 302.

[0038] Further, the battery pack shell 10 is provided with a clamping groove 70 on both sides, when the battery pack 100 is assembled with the electric tool 200, the clamping groove 70 is clamped with the electric tool 200, the locking portion 301 extends into the locking groove 200a on the electric tool 200, and the battery pack 100 is locked.

[0039] Further, when the button portion 302 is pressed, the button portion 302 drives the locking portion 301 to move downward and away from the locking groove 200a through the connecting portion 303, the elastic member 50 is compressed, and the locking state of the battery pack 100 is released;

[0040] When the connecting portion 303 drives the locking portion 301 to move downward, the triggering portion 30a extrudes the display button 40, so that the display button 40 is actuated;

[0041] When the pressing force on the button portion 302 disappears, the elastic member 50 drives the button portion 302 to reset, and the triggering portion 30a is separated from the display button 40.

[0042] Specifically, when the user presses the button part 302 to actuate the locking piece 30, in the process of the connecting part 303 driving the locking part 301 downward, the trigger part 30a will move downward synchronously and press the display button 40. After the display button 40 is triggered, a signal is sent to the circuit board 100a, and the circuit board 100a controls the power remaining indicator light to light up according to the pre-set program, and selects the corresponding light color to display according to the actual power of the current battery cell 20. For example, when the power remaining indicator light displays red, it indicates that the power remaining of the battery pack is insufficient, and the user needs to charge in time; when the power remaining indicator light displays green, it indicates that the power remaining of the battery pack is sufficient and can be used normally. When the pressing force on the button part 302 disappears and the elastic piece 50 drives the button part 302 to reset, the trigger part 30a is separated from the display button 40, and the display button 40 returns to the initial state.

[0043] The battery pack 100 of the present application mainly consists of a battery pack shell 10, a battery cell 20, a locking piece 30, a display button 40, a power remaining indicator light, an elastic piece 50, and a circuit board 100a, and other key components. The components work together to realize the functions of power storage, output, and convenient connection with the power tool 200 and power display of the battery pack.

[0044] In some embodiments, the trigger part 30a is configured as a part of the connecting part 303, and the protruding direction of the trigger part 30a is toward the display button 40 from the surface of the connecting part 303.

[0045] In summary, the present application sets the trigger part 30a on the locking piece 30, when the locking piece 30 is triggered, the trigger part 30a can automatically press the display button 40, thereby lighting up the power remaining indicator light, realizing the function of checking the power of the battery pack while operating the locking piece, without the user manually operating the display button, greatly improving the convenience of use.

[0046] The present application combines the locking function and the power display function organically, reduces the setting of independent components, simplifies the structure of the battery pack, and reduces the production cost.

[0047] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent substitutions for part or all of the technical features; and these modifications or substitutions do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A battery pack, comprising: a battery pack housing; a battery cell mounted in the battery pack housing; a locking member movably mounted on the battery pack housing for locking the battery pack assembled on a power tool; characterized in that a display button is mounted on the battery pack housing and electrically connected to a display lamp, and the locking member is provided with a triggering portion, which can directly act on the display button to light up the display lamp when the locking member is triggered.

2. The battery pack of claim 1, wherein, The display lamp is a remaining capacity indicator.

3. The battery pack of claim 1, wherein, The locking member further comprises a locking portion, a button portion, a connecting portion arranged between the locking portion and the button portion, and the triggering portion is arranged on the connecting portion; an elastic member is arranged on the inner side of the button portion, one end of the elastic member is in contact with a supporting portion on the battery pack housing, and the other end is in contact with the inner wall of the button portion.

4. The battery pack of claim 3, wherein, The battery pack housing is provided with clamping grooves on both sides, which are clamped with the power tool when the battery pack is assembled with the power tool, the locking portion extends into the locking groove on the power tool, and the battery pack is locked.

5. The battery pack of claim 4, wherein, When the button portion is pressed, the button portion drives the locking portion downward and away from the locking groove through the connecting portion, the elastic member is compressed, and the locking state of the battery pack is released; When the connecting portion drives the locking portion downward, the triggering portion extrudes the display button, so that the display button is triggered; When the pressing force on the button portion disappears, the elastic member drives the button portion to reset, and the triggering portion is separated from the display button.

6. The battery pack of claim 2, wherein, A circuit board is mounted in the battery pack housing, and the circuit board is electrically connected to the battery cell and the remaining capacity indicator, and the display button is mounted on the circuit board.

7. The battery pack of claim 3, wherein, The triggering portion is configured as part of the connecting portion.

8. The battery pack of claim 3, wherein, The protruding direction of the triggering portion is toward the display button from the surface of the connecting portion.

9. The battery pack of claim 2, wherein, The remaining capacity indicator displays different remaining capacities of the battery pack by different light colors.

10. The battery pack of claim 3, wherein, The elastic member is a spring.

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