Quickly-assembled battery pack

Abstract

The utility model relates to a fast-assembly battery pack, and belongs to the technical field of electric tools. The battery pack comprises an upper cover and a lower cover which are buckled and fixedly connected to form an accommodating cavity; one side of the upper part of the upper cover is provided with socket grooves which are distributed at intervals, and the other side is provided with a button groove and a buckle groove which extend vertically; the lower cover is provided with a battery bracket for placing a battery cell; the two ends of the battery support are respectively provided with an end cap with the upper portion extending out of a supporting rib, and the PCB integrating the control circuit and the electric quantity display circuit is fixedly connected with the end caps at the two ends through the supporting ribs respectively. The utility model has the obvious advantages that the battery cell is very convenient to assemble and disassemble, is stable and reliable after being in place, and has good buffer performance.

Description

Technical Field

[0001] The utility model relates to a battery pack of an electric tool, in particular to a quick-install battery pack, belonging to the technical field of electric tools. Background Art

[0002] The battery pack equipped with a portable power tool usually contains a box seat for placing the battery unit, a control circuit board and a power display circuit supported on the battery unit, a connector located on the control circuit board, and a plug-in cover buckled on the outside of the connector. The applicant has found in practice that the existing battery pack has the following shortcomings: 1) Although the control circuit board and the power display circuit are set separately to save space, they need to be connected by multiple wires; 2) The plug-in cover and the box seat are completely connected by fasteners; therefore, it is inconvenient to install, disassemble and replace the battery unit. Utility Model Content

[0003] The purpose of the utility model is to solve the shortcomings of the prior art and to provide a quick-install battery pack that is easy to install and disassemble through structural improvement.

[0004] In order to achieve the above-mentioned purpose, the basic technical scheme of the utility model quick-install battery pack is as follows: it comprises an upper cover and a lower cover which are fastened and fixedly connected to form a receiving cavity; one side of the upper part of the upper cover has plug slots distributed at intervals, and the other side has a button slot and a buckle slot extending vertically; the lower cover is equipped with a battery holder for placing the battery cell;

[0005] The two ends of the battery bracket are respectively provided with end caps with support ribs extending from the upper part, and the PCB board integrating the control circuit and the power display circuit is respectively fixedly connected to the end caps at the two ends through the support ribs.

[0006] A further improvement of the utility model is that the upper part of the end cap at one end of the battery holder is provided with transverse supporting ribs through a cantilever arch extending toward the middle, and the upper part of the end cap at the other end extends with longitudinal supporting ribs; the transverse supporting ribs and the longitudinal supporting ribs form a supporting surface at the same level, and the PCB board is fixedly connected to the end caps at both ends through the transverse supporting ribs and the longitudinal supporting ribs.

[0007] A further improvement of the utility model is that a button is installed in the button groove of the upper cover to form an upper limit vertical moving pair therewith; one end of the button has a downward depression, and the other end has a buckle extending upward from the buckle groove; a spring is installed between the button and the end cap of the battery holder to make it tend to rise.

[0008] A further improvement of the utility model is that outer sides of the two end caps of the battery bracket are respectively fixedly connected to buffer pads through insulating pads.

[0009] The utility model has the following significant advantages: the battery core is very convenient to install and disassemble, is safe and reliable after being in place, and has good buffering performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a three-dimensional structural schematic diagram of an embodiment of the utility model.

[0011] Figure 2 for Figure 1 Schematic diagram of the three-dimensional exploded structure of an embodiment.

[0012] Figure 3 for Figure 1 Schematic diagram of the three-dimensional structure of the embodiment with the upper cover removed.

[0013] Figure 4 for Figure 1 A schematic diagram of the three-dimensional structure of the embodiment with the upper cover and the lower cover removed.

[0014] In the figure: upper cover 1, button 2, spring 3, positive and negative electrode connector 4, PCB board 5, first battery welding piece 6, second battery welding piece 7, battery bracket 8, lithium electronic cell 9, lower cover 10, hexalobular slot pan head self-tapping screw 11, black nickel sponge pad 12, cross slot pan head screw 13, insulating paper pad 14, signal connector 15. DETAILED DESCRIPTION Example

[0015] The quick-install battery pack of this embodiment is as follows Figure 1 and Figure 2 As shown, it comprises an upper cover 1 and a lower cover 10 which are buckled together to form a receiving cavity. The two covers are fixedly connected by means of a hexalobular socket pan head self-tapping screw 11.

[0016] One side of the upper part of the upper cover 1 has horizontally extending socket slots 1-1 that are spaced apart, and the other side has vertically extending button slots 1-2 and buckle slots 1-3. Figure 3 The lower cover is provided with a battery holder 8 for accommodating two lithium-ion battery cells 9. The two ends of the battery holder 8 are provided with end caps 8-1 respectively. The upper part of the end cap 8-1 at one end is provided with a transverse support rib 8-3 through a cantilever arch 8-2 ​​extending toward the middle, and the upper part of the end cap 8-1' at the other end extends a longitudinal support rib 8-4; the transverse support rib 8-3 and the longitudinal support rib 8-4 form a support surface at the same level, and the PCB board 5 located on the support surface integrates the control circuit and the power display circuit, and is fixedly connected to the end caps at both ends through the transverse support rib 8-3 and the longitudinal support rib 8-4. The two ends of the lithium-ion battery cell 9 are electrically connected to the corresponding ports of the PCB board 5 through the first battery welding sheet 6 and the second battery welding sheet 7 respectively. The PCB board 5 fixes the positive and negative electrode connectors 4 and the signal connector 15 corresponding to the positions of the corresponding socket slots 1-1 of the upper cover 1.

[0017] A button 2 is installed in the button slot 1-2 of the upper cover 1 to form an upper limit vertical moving pair with the button 2. One end of the button 2 has a downward depression 2-1, and the other end has a buckle 2-2 extending upward from the buckle slot 1-3. A spring 3 is installed between the button 2 and the end cap 8-1' of the battery holder 8 to make it tend to rise.

[0018] like Figure 4 As shown, the outer sides of the two end caps of the battery bracket 8 are respectively fixedly connected to the black nickel sponge pads 12 through insulating paper pads 14.

[0019] This embodiment has the following advantages:

[0020] 1) The battery bracket structure with two separated ends makes it very convenient to install and disassemble the battery cell;

[0021] 2) The PCB board integrating the control circuit and the power display circuit not only eliminates the original connection between the two circuits, but also connects the two ends of the battery bracket through the horizontal and vertical support ribs, so the battery cell is stable and reliable after being in place;

[0022] 3) The buffer structure of insulating paper pad and sponge pad effectively avoids failures caused by vibration, which is safe and reliable.

[0023] In addition to the above embodiments, the present invention may also have other implementations. Any technical solution formed by equivalent replacement or equivalent transformation falls within the protection scope required by the present invention.

Claims

1. A quick-install battery pack, comprising an upper cover and a lower cover that are fastened and fixedly connected to form a cavity; one side of the upper part of the upper cover has socket slots distributed at intervals, and the other side has a button slot and a buckle slot extending vertically; the lower cover is equipped with a battery holder for accommodating a battery cell; Features: The two ends of the battery bracket are respectively provided with end caps with support ribs extending from the upper part, and the PCB board integrating the control circuit and the power display circuit is respectively fixedly connected to the end caps at the two ends through the support ribs.

2. The quick-install battery pack according to claim 1, Features: The upper part of the end cap at one end of the battery holder is provided with transverse supporting ribs through a cantilever arch extending toward the middle, and the upper part of the end cap at the other end extends with longitudinal supporting ribs; the transverse supporting ribs and the longitudinal supporting ribs form a supporting surface at the same level, and the PCB board is fixedly connected to the end caps at both ends through the transverse supporting ribs and the longitudinal supporting ribs.

3. The quick-install battery pack according to claim 2, Features: A button is installed in the button slot of the upper cover, forming an upper limit vertical moving pair with the button; one end of the button has a downward depression, and the other end has a buckle extending upward from the buckle slot; a spring is installed between the button and the end cap of the battery bracket to make it tend to rise.

4. The quick-install battery pack according to claim 3, Features: The outer sides of the two end caps of the battery bracket are respectively fixedly connected to the buffer pads through insulating pads.

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