Battery pack and electric tool

Abstract

The utility model discloses a battery pack which comprises a shell, a battery cell and a circuit board, the battery cell and the circuit board are both arranged in the shell, the battery cell is electrically connected with the circuit board, the battery pack further comprises a plurality of conductive clamping pieces, the conductive clamping pieces are arranged in the shell and electrically connected with the circuit board, and the conductive clamping pieces are arranged in the shell and electrically connected with the circuit board. The conductive clamping piece comprises two clamping feet, a V-shaped embedding opening is formed between the two clamping feet, each clamping foot is provided with a sliding guide piece, the sliding guide pieces on the two clamping feet form a V-shaped sliding inlet, the embedding opening is perpendicular to the sliding inlet, the sliding guide pieces are located in the shell, a notch is formed in the shell, and the clamping feet are arranged in the notch. The notch is in an L shape, and the embedding opening and the sliding-in opening are both located in the notch. The utility model further discloses the electric tool comprising the battery pack.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of electric tools, especially to a battery pack and electric tool. BACKGROUND

[0002] Many portable electric tools (including but not limited to electric drills and electric saws) currently use battery packs for power supply, and a battery pack is disclosed in patent announcement document CN114336845B. The output end (document figure reference number 205) of the battery pack of this structure is composed of two metal springs, and the external conductive sheet is clamped between the two metal springs during use to realize conduction. The two metal springs that make up this output end are in the shape of a circular arc, but the output end formed by the metal springs of this structure has only one insertion port, so only one direction can insert the conductive card. Therefore, the adaptability of the battery pack with this structure output end is relatively poor. UTILITY MODEL CONTENTS

[0003] The utility model discloses a battery pack, which sets an L-shaped notch on the shell and sets an embedded entrance and a sliding entrance in a perpendicular state on the conductive clamp piece. The embedded entrance and the sliding entrance are in a perpendicular state, which can ensure that the power connection sheet on the external electric appliance can be inserted into the shell from two directions and clamped by the conductive clamp piece. The adaptability of the entire battery pack is relatively strong.

[0004] The technical scheme adopted by the utility model is as follows:

[0005] A battery pack includes a shell, a battery cell, and a circuit board. The battery cell and the circuit board are both arranged in the shell, and the battery cell is electrically connected to the circuit board. The battery pack also includes a plurality of conductive clamp pieces. The conductive clamp pieces are arranged in the shell and electrically connected to the circuit board. Each conductive clamp piece includes two clamp feet that form a V-shaped embedded entrance. Each clamp foot is provided with a conductive sliding piece, and the conductive sliding pieces on the two clamp feet form a V-shaped sliding entrance. The embedded entrance is perpendicular to the sliding entrance. The conductive sliding pieces are located in the shell. The shell is provided with a notch, which is an L-shaped notch. The embedded entrance and the sliding entrance are both located in the notch.

[0006] The shell is provided with a notch, the notch of the shell is a channel for inserting the metal contact piece of the external electric appliance into the shell, the notch is an L-shaped notch, so that the metal contact piece on the external electric appliance can be inserted into the shell from two directions, and the two different insertion directions are perpendicular, in order to ensure that the contact piece on the external electric appliance can be smoothly clamped into the conductive clamp, the two clamping feet of the conductive clamp form a V-shaped embedding entrance, and a guide slide is arranged on the clamping foot to form a V-shaped sliding entrance, the embedding entrance and the sliding entrance are perpendicular, and the metal contact piece can be clamped between the two clamping feet of the conductive clamp from the embedding entrance or the sliding entrance after being inserted into the shell from the two different directions of the notch, so as to ensure that the two clamping feet of the conductive clamp can clamp the metal contact piece.

[0007] In summary, the battery pack is provided with an L-shaped notch on the shell, and the conductive clamp is provided with an embedding entrance and a sliding entrance in a perpendicular state, the embedding entrance and the sliding entrance are perpendicular, which can ensure that the contact piece on the external electric appliance can be inserted into the shell from two directions and clamped by the conductive clamp, and the adaptability of the whole battery pack is relatively strong.

[0008] Optionally, an insulating auxiliary plate is further included, which is arranged in the shell, and the conductive clamp is detachably arranged on the insulating auxiliary plate.

[0009] Optionally, the conductive clamp is provided with an insertion piece, the insulating auxiliary plate is provided with a insertion hole, and the insertion piece and the insertion hole are clamped and inserted together.

[0010] The conductive clamp is fixed on the insertion hole of the insulating auxiliary plate through the insertion piece, which can ensure the installation stability of the conductive clamp and quickly replace different conductive clamps as needed.

[0011] Optionally, the notch is multiple, and the notches are in parallel and non-contact state.

[0012] Optionally, a sink is arranged on the outer wall of the shell, and the sink is located between the two notches.

[0013] Because the shell needs to be clamped with the external electric appliance, in order to make the shell and the external electric appliance together, there is a gap between the shell and the external electric appliance, so a sink is arranged on the shell.

[0014] Optionally, a heat dissipation through hole is arranged in the sink.

[0015] The heat dissipation through hole is used for heat dissipation.

[0016] Optionally, a butt joint groove is arranged on the outer wall of the shell.

[0017] The docking groove is used for docking with the protrusion on the external electrical appliance, so as to ensure that the whole battery pack can be stably inserted with the external electrical appliance.

[0018] The electric tool comprises the battery pack.

[0019] The utility model discloses the beneficial effect is: through setting up the L shape's gap on the casing, and the conductive clamping piece is set up the embedded entrance and the sliding entrance in the perpendicular state, and the embedded entrance and the sliding entrance are in the perpendicular state, can ensure that the electric contact piece on the external electrical appliance can be inserted into the casing from two directions and be clamped by the conductive clamping piece, and the adaptability of whole battery pack is relatively stronger. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments described in the utility model, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0021] Figure 1 It is a structural schematic diagram of the battery pack.

[0022] Figure 2 It is a schematic diagram of the cooperation relationship between the conductive clamping piece and the insulating auxiliary piece.

[0023] Figure 3 It is Figure 2 It is an enlarged schematic diagram of A in the figure.

[0024] The reference signs in the figure are as follows: 1, casing; 101, gap; 102, sink groove; 103, heat dissipation through hole; 104, docking groove; 2, insulating auxiliary plate; 201, insertion hole; 301, clamping foot; 3011, embedded entrance; 302, guide sliding piece; 3021, sliding entrance; 303, insertion piece. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation of the utility model will be described in detail below with reference to the drawings.

[0026] In the following description, many specific details are set forth in order to provide a thorough understanding of the utility model, but the utility model can also be implemented in other ways different from the description, and those skilled in the art can make similar generalization without departing from the connotation of the utility model, therefore, the utility model is not limited by the specific implementation disclosed below.

[0027] In the description of the present application, it should be noted that the terms used herein are only intended to describe specific embodiments and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn in proportion to the actual proportions. The techniques, methods and devices known to those skilled in the relevant art can not be discussed in detail, but in appropriate cases, the techniques, methods and devices should be considered as part of the authorized description. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, and not as a limitation. Therefore, other examples of exemplary embodiments can have different values. It should be noted that similar reference numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0028] Embodiment 1

[0029] As shown in the accompanying Figure 1 ~ accompanying Figure 3 A battery pack, including a shell 1, a battery cell (located below the insulating auxiliary plate, not visible in the field of view) and a circuit board (located below the insulating auxiliary plate, not visible in the field of view), the battery cell and the circuit board are arranged in the shell 1, and the battery cell and the circuit board are electrically connected, further comprising a plurality of conductive clamps, the conductive clamps are arranged in the shell 1, the conductive clamps are electrically connected with the circuit board, the conductive clamps include two clamping feet 301, the two clamping feet 301 form a V-shaped embedding entrance 3011, each clamping foot 301 is provided with a guide slide 302, the guide slides 302 on the two clamping feet 301 form a V-shaped sliding entrance 3021, the embedding entrance 3011 is perpendicular to the sliding entrance 3021, the guide slide 302 is located in the shell 1, the shell 1 is provided with a notch 101, the notch 101 is an L-shaped notch 101, the embedding entrance 3011 and the sliding entrance 3021 are both at the notch 101.

[0030] In this type of battery pack, a notch 101 is provided on the housing 1. The notch 101 on the housing 1 is a channel for inserting the metal contact piece of the external electrical appliance into the housing 1. The notch 101 is L-shaped, so that the metal contact piece of the external electrical appliance can be inserted into the housing 1 from two directions, and the two different insertion directions are perpendicular. In order to ensure that the contact piece of the external electrical appliance can be smoothly inserted into the conductive clip (which can be made of copper), the two clamping feet 301 of the conductive clip itself form a V-shaped insertion port 3011. At the same time, a guide plate 302 is provided on the clamping foot 301, and the guide plate 302 forms a V-shaped sliding port 3021. The insertion port 3011 and the sliding port 3021 are perpendicular. After the metal contact piece is inserted into the housing 1 from two different directions of the notch 101, it can be inserted into the space between the two clamping feet 301 of the conductive clip from the insertion port 3011 or the sliding port 3021, ensuring that the two clamping feet 301 of the conductive clip can hold the metal contact piece tightly.

[0031] In summary, by providing an L-shaped notch 101 on the housing 1 and providing a vertical insertion port 3011 and a sliding port 3021 on the conductive clip, the insertion port 3011 and the sliding port 3021 are in a vertical state, which can ensure that the contact plate on the external electrical appliance can be inserted into the housing 1 from two directions and clamped by the conductive clip, making the battery pack relatively adaptable.

[0032] As attached Figure 1 ~Attached Figure 3 As shown, it also includes an insulating auxiliary plate 2 (which may be made of plastic), the insulating auxiliary plate 2 is disposed inside the housing 1, and the conductive clips are detachably disposed on the insulating auxiliary plate 2.

[0033] As attached Figure 1 ~Attached Figure 3 As shown, the conductive clip is provided with an insertion piece 303, and the insulating auxiliary plate 2 is provided with a socket 201. The insertion piece 303 and the socket 201 are engaged together.

[0034] The conductive clip is fixed to the insertion hole 201 of the insulating auxiliary plate 2 by its own insertion piece 303, which can not only ensure the installation stability of the conductive clip, but also allow for quick replacement of different conductive clips as needed.

[0035] As attached Figure 1 ~Attached Figure 3 As shown, there are multiple notches 101, and the notches 101 are parallel and do not touch each other.

[0036] As attached Figure 1 ~Attached Figure 3 As shown, a recessed groove 102 is provided on the outer wall of the housing 1, and the recessed groove 102 is located between two notches 101.

[0037] Because the shell 1 needs to be clamped with the external electric appliance, in order to make the shell 1 and the external electric appliance exist gap after being clamped together, the sink 102 is set on the shell 1.

[0038] As shown in the accompanying Figure 1 ~ the accompanying Figure 3 The sink 102 is provided with a heat dissipation through hole 103.

[0039] The heat dissipation through hole 103 is used for heat dissipation.

[0040] As shown in the accompanying Figure 1 ~ the accompanying Figure 3 The outer wall of the shell 1 is provided with a butt joint groove 104.

[0041] The butt joint groove 104 is used for butt joint with the protrusion on the external electric appliance, and ensures that the whole battery pack can be stably inserted with the external electric appliance.

[0042] Embodiment 2

[0043] An electric tool comprises the battery pack as shown in embodiment 1. The electric tool can be a hand-held tool such as electric drill or electric saw.

[0044] The above-mentioned embodiments only express some embodiments of the present application, and the description is more specific and detailed, but it cannot be understood as the limitation of the patent scope of the present application. It should be pointed out that for the skilled in the art, the technical solutions recorded in the above-mentioned embodiments can still be modified, or some technical features can be replaced. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A battery pack, comprising a housing, a cell and a circuit board, the cell and the circuit board are arranged in the housing, and the cell is electrically connected with the circuit board, characterized in that, The shell is provided with a plurality of conductive clamps, the conductive clamps are arranged in the shell, the conductive clamps are electrically connected with the circuit board, the conductive clamps comprise two clamping feet, a V-shaped insertion opening is formed between the two clamping feet, a guide slide is arranged on each clamping foot, the guide slides on the two clamping feet form a V-shaped sliding opening, the insertion opening is perpendicular to the sliding opening, the guide slides are located in the shell, the shell is provided with a notch, the notch is an L-shaped notch, and the insertion opening and the sliding opening are located at the notch.

2. The battery pack of claim 1, wherein, The shell is further provided with an insulating auxiliary plate, the conductive clamps are detachably arranged on the insulating auxiliary plate.

3. The battery pack of claim 2, wherein, An insertion piece is arranged on the conductive clamp, an insertion hole is arranged on the insulating auxiliary plate, and the insertion piece and the insertion hole are clamped together.

4. The battery pack of claim 1, wherein, The plurality of notches are parallel and do not contact each other.

5. The battery pack of claim 1, wherein, A sunken groove is arranged on the outer wall of the shell and located between the two notches.

6. The battery pack of claim 5, wherein, A heat dissipation through hole is arranged in the sunken groove.

7. The battery pack of claim 1, wherein, A butt joint groove is arranged on the outer wall of the shell.

8. A power tool characterized by comprising: The battery pack comprises the battery pack as claimed in any one of claims 1 to 7.

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