Electric connection structure and tool

Abstract

The utility model discloses an electric connection structure and a tool, and belongs to the technical field of tools. The electric connection structure comprises a shell and two connecting pieces, the shell is provided with a battery bin and two interlayers, and the battery bin is used for containing the energy storage unit; the connecting piece comprises fixing parts, a first connecting part and a second connecting part, and the two fixing parts are correspondingly clamped between the two interlayers; the two first connecting parts are arranged in the battery compartment and are used for correspondingly abutting against the positive electrode and the negative electrode of the energy storage unit; the two second connecting parts extend out of the shell and are used for being detachably connected with the circuit board, so that the energy storage unit and the circuit board are electrically connected through the connecting piece. According to the electric connection structure and the tool, the structure layout is convenient, the structure is simplified, the battery and the circuit board are convenient to disassemble and assemble, and then the battery is convenient to replace.

Description

TECHNICAL FIELD

[0001] The utility model relates to tool technical field especially, and it is a kind of electric connection structure and tool. BACKGROUND

[0002] Tool includes circuit board, energy storage unit and working head, energy storage unit such as battery, for the power supply of circuit board and working head, circuit board is used to control working head to work. In prior art, battery and circuit board are connected by wire, which has high requirements for the internal space and layout of battery compartment, and the messy wire affects the assembly and disassembly between battery and circuit board, making it inconvenient to replace battery. SUMMARY

[0003] The utility model discloses a kind of electric connection structure and tool, facilitate structure layout, simplify structure, facilitate the disassembly and assembly between energy storage unit and circuit board, to facilitate battery replacement.

[0004] To achieve this purpose, the utility model adopts the following technical scheme:

[0005] An electric connection structure, comprising:

[0006] Shell is equipped with battery compartment and two interlayers, the battery compartment is used to accommodate energy storage unit;

[0007] Two connecting sheets, the connecting sheet includes fixed part, first connecting part and second connecting part, two fixed parts are correspondingly clamped in two interlayers;Two first connecting parts are arranged in the battery compartment, for respectively with the positive pole and negative pole of the energy storage unit corresponding abutment;

[0008] Circuit board, the second connecting part is stretched to outside from the shell, for being detachably connected with circuit board, so that the energy storage unit and the circuit board are electrically connected by the connecting sheet.

[0009] In some possible embodiments, the circuit board is clamped or abutted on the second connecting part.

[0010] In some possible embodiments, the second connecting part includes two symmetrical spring sheets, the spring sheet includes first section, two first sections are V-shaped or U-shaped, and the gap of two first sections close to each other at one end is not greater than the thickness of the circuit board, so as to clamp the circuit board.

[0011] In some possible embodiments, the spring sheet further includes a second section arranged at an angle with the first section, and the connection between the first section and the second section of the two spring sheets is arranged towards each other, and the two connections are used to clamp the circuit board.

[0012] In some possible implementation manners, two of the interlayers are arranged on two sides of the battery compartment along a first direction, the shell is provided with an opening arranged on one side of the battery compartment along a second direction, the opening is in communication with the two interlayers respectively, and the first direction and the second direction are arranged at an angle.

[0013] In some possible implementation manners, the connecting piece further comprises a bending portion, the bending portion connects the fixing portion and the second connecting portion, the bending portion is arranged at an angle with the fixing portion, and the bending portion is arranged on one side of the battery compartment along the second direction.

[0014] In some possible implementation manners, one side of the shell along a third direction is provided with an opening, so that the interlayer and the battery compartment are both in communication with the outside; the connecting piece further comprises a third connecting portion, the third connecting portion connects the fixing portion and the first connecting portion; a partition is arranged between the interlayer and the battery compartment, and the third connecting portion is arranged on one side of the partition facing the opening.

[0015] In some possible implementation manners, an elastic member is arranged on the fixing portion and arranged between the fixing portion and the side wall of the interlayer.

[0016] A tool comprises an energy storage unit, a circuit board and the electric connection structure as claimed in any one of the preceding claims, the energy storage unit is accommodated in the battery compartment, the first connecting portions of the two connecting pieces are connected with the positive electrode and the negative electrode of the energy storage unit correspondingly, and the second connecting portions of the two connecting pieces are both in abutment with the circuit board, so that the energy storage unit and the circuit board are electrically connected through the connecting pieces.

[0017] In some possible implementation manners, a mounting member is further provided, the mounting member is provided with a mounting cavity, the shell is detachably connected with the mounting member, and the circuit board is arranged in the mounting cavity.

[0018] The tool has the following beneficial effects:

[0019] The utility model provides a kind of electric connection structure and tool, the fixed part of two connecting pieces is installed in the interlayer of shell, realize the fixed connection of connecting piece and shell.The first connecting part and the second connecting part of first connecting piece correspond with the anode of energy storage unit and circuit board connection, the first connecting part and the second connecting part of second connecting piece correspond with the negative pole of energy storage unit and circuit board connection, to realize that energy storage unit and circuit board are electrically connected by two connecting pieces.Structure is simple, avoid the mess caused by wire connection, save space.When assembling, energy storage unit is installed in battery compartment, the anode of energy storage unit and the first connecting part of first connecting piece abut, the negative pole of energy storage unit and the first connecting part of second connecting piece abut, realize the installation and connection of energy storage unit.The second connecting part of first connecting piece and circuit board can be detachably connected, the second connecting part of second connecting piece and circuit board can be detachably connected, realize the electrical connection of circuit board and energy storage unit.When disassembling, only need to extract shell, make energy storage unit housed in battery compartment extract along with it, energy storage unit and circuit board can be separated, to realize the disconnection of circuit, facilitate assembly and disassembly, facilitate energy storage unit replacement. BRIEF DESCRIPTION OF DRAWINGS

[0020] Fig. 1 It is the schematic diagram of connecting piece provided by the specific embodiment of the utility model;

[0021] Fig. 2 It is the schematic diagram of shell provided by the specific embodiment of the utility model;

[0022] Fig. 3 It is the schematic diagram of circuit board provided by the specific embodiment of the utility model.

[0023] In the figure:

[0024] 1, shell;11, battery compartment;12, interlayer;13, open mouth;14, barrier;15, avoid slot;16, through hole;17, opening;

[0025] 2, connecting piece;21, fixed part;22, first connecting part;23, second connecting part;231, elastic sheet;2311, first section;2312, second section;2313, connection;2314, third section;24, bending part;25, third connecting part;26, elastic member;

[0026] 3, circuit board;31, first connection;32, second connection. DETAILED DESCRIPTION

[0027] In order to make the technical problems, the technical solutions and the technical effects solved by the utility model clearer, the technical solutions of the embodiments of the utility model will be further described in detail below with reference to the drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0028] In the description of the utility model, unless explicitly defined and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements or the interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0029] In the utility model, unless explicitly defined and limited, the first feature "on" or "below" the second feature can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0030] As shown in Figs. 1-3 The embodiment provides an electric connection structure, which comprises a shell 1 and two connecting sheets 2. The shell 1 is provided with a battery compartment 11 and two interlayers 12, and the battery compartment 11 is used for accommodating an energy storage unit, such as a battery. The connecting sheet 2 comprises a fixed part 21, a first connecting part 22 and a second connecting part 23, and the fixed parts 21 of the two connecting sheets 2 are correspondingly clamped between the two interlayers 12; the first connecting parts 22 of the two connecting sheets 2 are both arranged in the battery compartment 11 and are used for respectively abutting the positive electrode and the negative electrode of the battery; the second connecting parts 23 of the two connecting sheets 2 are both extended from the shell 1 to the outside and are used for being detachably connected with a circuit board 3, for example, the second connecting part 23 is arranged or clamped on the circuit board 3, so that the battery and the circuit board 3 are electrically connected through the connecting sheet 2. The connecting sheet 2 is made of a conductive metal material, preferably a high-conductivity material.

[0031] The circuit board 3 is provided with a first connecting part 31 and a second connecting part 32, for example: the first connecting part 31 and the second connecting part 32 are both solder pads.

[0032] The fixed part 21 of the two connecting pieces 2 is correspondingly mounted on the interlayer 12 of the shell 1, so as to realize the fixed connection of the connecting pieces 2 and the shell 1. The first connecting part 22 and the second connecting part 23 of the first connecting piece 2 are correspondingly connected with the positive electrode of the battery and the first connecting position 31 of the circuit board 3, and the first connecting part 22 and the second connecting part 23 of the second connecting piece 2 are correspondingly connected with the negative electrode of the battery and the second connecting position 32 of the circuit board 3, so as to realize the electrical connection of the battery and the circuit board 3 through the two connecting pieces 2. The structure is simple, the connection of the wires is avoided, the space is saved, and the battery is installed in the battery compartment 11. The positive electrode of the battery abuts against the first connecting part 22 of the first connecting piece 2, and the negative electrode of the battery abuts against the first connecting part 22 of the second connecting piece 2, so as to realize the installation and electrical connection of the battery. The second connecting part 23 of the first connecting piece 2 is detachably connected with the first connecting position 31 of the circuit board 3, and the second connecting part 23 of the second connecting piece 2 is detachably connected with the second connecting position 32 of the circuit board 3, so as to realize the electrical connection of the circuit board 3 and the battery. When disassembling, the shell 1 is pulled out, the battery in the battery compartment 11 is pulled out, the battery and the circuit board 3 are separated, the circuit is disconnected, and the battery is replaced.

[0033] Exemplarily, the first direction is the X direction, the second direction is the Y direction, and the third direction is the Z direction. The first direction, the second direction, and the third direction are perpendicular to each other in pairs.

[0034] The positive electrode and the negative electrode of the battery are located at two ends, the two interlayers 12 are arranged on the two sides of the battery compartment 11 along the first direction, and the first connecting parts 22 of the two connecting pieces 2 are located on the two sides of the battery compartment 11 along the first direction, so as to abut against the positive electrode and the negative electrode of the battery correspondingly, and be suitable for the battery with the positive electrode and the negative electrode located on the two sides.

[0035] In one embodiment, the shell 1 is provided with an opening 13 on one side along the third direction, so that the interlayer 12 and the battery compartment 11 are both communicated with the outside through the opening 13. The shell 1 is internally provided with a partition 14 for forming the battery compartment 11, and the partition 14 is used for isolating the interlayer 12 and the battery compartment 11. The connecting piece 2 further comprises a third connecting part 25, the third connecting part 25 connects the fixed part 21 and the first connecting part 22, and the third connecting part 25 is arranged on the side of the partition 14 facing the opening 13. The inner side of the shell 1 is provided with a clearance groove 15, so as to prevent the connecting piece 2 from being blocked, and realize heat dissipation after the connecting piece 2 is electrically connected, while ensuring stable installation of the connecting piece 2. In addition, when the overall size of the electrical connection structure is large, the structure of the clearance groove 15 is correspondingly large, and when the connecting piece 2 is disassembled, the fingers are inserted into the clearance groove 15 through the opening 13 to take and place the fixed part 21, so as to facilitate operation. Exemplarily, the shell 1 is a rectangular shell, the partition 14 is a four-side frame, and the battery can be taken and placed in the battery compartment 11 from the opening 13.

[0036] Optionally, the side of the battery compartment 11 opposite to the opening 13 is provided with a through hole 16, so that a force is applied from the through hole 16 to remove the battery from the opening 13.

[0037] The opening 17 is provided on the side of the battery compartment 11 along the second direction, and the opening 17 is in communication with the two interlayers 12 respectively, that is, the second connecting portions 23 of the two connecting pieces 2 are both extended out of the same side of the battery compartment 11 through the opening 17, so as to be connected with the circuit board 3.

[0038] The connecting piece 2 further comprises a bending portion 24, the bending portion 24 connects the fixing portion 21 and the second connecting portion 23, the bending portion 24 is arranged at an angle with the fixing portion 21, and the bending portion 24 is provided on the side of the battery compartment 11 along the second direction. In this scheme, the bending portion 24 is located at the opening 17. By arranging the bending portion 24, the second connecting portion 23 is extended out of the opening 17. In addition, the angle between the bending portion 24 and the fixing portion 21, and the angle between the bending portion 24 and the second connecting portion 23 can be arranged according to actual needs. For example, the bending portion 24 and the fixing portion 21 are arranged perpendicularly, and the second connecting portion 23 and the bending portion 24 are arranged perpendicularly.

[0039] Optionally, the circuit board 3 is clamped between the second connecting portion 23, for example, the second connecting portion 23 comprises two elastic pieces 231, and the circuit board 3 is clamped between the two elastic pieces 231, which facilitates the disassembly and assembly of the circuit board 3, and improves the connection reliability between the circuit board 3 and the second connecting portion 23. For example, the two elastic pieces 231 are symmetrically arranged, the elastic piece 231 comprises a first segment 2311 and a second segment 2312 arranged at an angle, the first segment 2311 is connected with the fixing portion 21, the connecting portions 2313 of the first segments 2311 and the second segments 2312 of the two elastic pieces 231 are arranged towards each other, and the gap between the two connecting portions 2313 is not greater than the thickness of the circuit board 3, so as to clamp the circuit board 3, and the connecting portions 2313 form contacts for electrical connection with the circuit board 3. The space between the two first segments 2311 is used for accommodating the circuit board 3, and the space between the two second segments 2312 is also used for accommodating the circuit board 3, and the second segment 2312 plays a guiding role, facilitating the insertion and removal of the circuit board 3. For example, the first segment 2311 and the second segment 2312 can both be planar or curved, so that the first segment 2311 and the second segment 2312 form a V shape or a U shape. Further, the elastic piece 231 further comprises a third segment 2314, the third segment 2314 connects the bending portion 24 and the first segment 2311, and by arranging the third segment 2314, the accommodation space for accommodating the circuit board 3 is increased.

[0040] In other embodiments, the elastic member 26 only comprises the first segment 2311 or only comprises the first segment 2311 and the third segment 2314, that is, does not comprise the second segment 2312, the two first segments 2311 form a V shape or a U shape, and the gap of the two first segments 2311 close to each other is not greater than the thickness of the circuit board 3, so as to clamp the circuit board 3.

[0041] An elastic element 26 is provided on the fixing part 21. The elastic element 26 is disposed between the fixing part 21 and the side wall of the interlayer 12. Through the elastic action of the elastic element 26, the clamping force between the fixing part 21 and the interlayer 12 is increased, preventing the fixing part 21 from detaching from the interlayer 12, improving the connection stability and reliability between the two, and thus improving the reliability of the electrical connection between the battery and the circuit board 3. Optionally, the elastic element 26 is an elastic sheet or a spring, and the elastic element 26 is welded to one or both sides of the fixing part 21. Optionally, there may be one or more elastic elements 26, and the multiple elastic elements 26 are arranged in a regular or irregular manner. For example, two elastic sheets are arranged at intervals along the first direction and are both facing the partition 14. The elastic sheets have a tendency to move the fixing part 21 away from the partition 14, thereby making the connection between the fixing part 21 and the outer shell 1 tighter.

[0042] Optionally, both the connecting piece 2 and the outer shell 1 are integral structures. The connecting piece 2 can be formed by bending a metal sheet, and the outer shell 1 can be formed by injection molding or machining, without limitation. Alternatively, both the connecting piece 2 and the outer shell 1 can be separate structures, connected by welding or other methods.

[0043] This embodiment also provides a tool including an energy storage unit, a circuit board 3, and the electrical connection structure described above. The energy storage unit is housed in the battery compartment 11. The first connecting portions 22 of the two connecting pieces 2 are connected to the positive and negative terminals of the energy storage unit, respectively. The second connecting portions 23 of the two connecting pieces 2 are detachably connected to the circuit board 3, such that the circuit board 3 abuts against or is clamped to the second connecting portions 23. Specifically, the two second connecting portions 23 abut against the first connecting point 31 and the second connecting point 32 of the circuit board 3, respectively. By adopting the above-described electrical connection structure, the structure is simpler and facilitates the replacement of the energy storage unit.

[0044] Optionally, the energy storage unit is a battery, such as a button cell, AA, or AAA dry cell. Optionally, the energy storage unit includes one or more batteries. When multiple batteries are provided, the batteries are connected in series, and the two first connection parts 22 are connected to the positive terminal of the battery at one end and the negative terminal of the battery at the other end, respectively.

[0045] The tool also includes a mounting component with a mounting cavity. The outer casing 1 is connected to the mounting component, and the circuit board 3 is located inside the mounting cavity. When it is necessary to disconnect the power to the circuit board 3 or replace the energy storage unit such as a battery, the outer casing 1 can be removed from the mounting component. After removing the outer casing 1 with the battery, the battery can be removed from the battery compartment 11 for replacement. Optionally, the outer casing 1 and the mounting component are connected by a plug-in connector, in which case the outer casing 1 can be pulled out of the mounting component.

[0046] Exemplarily, the tool can be an electric tool such as an electric wrench, an electric screwdriver, or a water quality detection pen or other product using the energy storage unit for power supply.

[0047] Obviously, the above embodiments of the present application are merely exemplary and are not intended to limit the embodiments of the present application. For those skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, it is not necessary and impossible to enumerate all the embodiments. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. An electrical connection structure, characterized by comprising: The utility model relates to a battery pack, including: A shell (1) is equipped with battery compartment (11) and two interlayers (12), the battery compartment (11) is used to accommodate energy storage unit; Two connecting sheets (2) include fixed part (21), first connecting part (22) and second connecting part (23), two fixed parts (21) are correspondingly clamped in two interlayers (12);Two first connecting parts (22) are all arranged in battery compartment (11) and are used for respectively abutting with the positive pole and negative pole of energy storage unit; Circuit board (3), the second connecting part (23) from the shell (1) extends to outside and is used for detachable connection with circuit board (3), so that energy storage unit and circuit board (3) are electrically connected through connecting sheet (2).

2. The electrical connection structure according to claim 1, characterized by The circuit board (3) is clamped or abutted on the second connecting part (23).

3. The electrical connection structure according to claim 1, characterized by Each second connecting part (23) includes two symmetrical spring sheets (231), the spring sheet (231) includes first section (2311), two first sections (2311) are V-shaped or U-shaped, and the gap of two first sections (2311) near one end of each other is not greater than the thickness of the circuit board (3) for clamping the circuit board (3).

4. The electrical connection structure according to claim 3, characterized in that The spring sheet (231) further includes a second section (2312) arranged at an angle to the first section (2311), and the connection (2313) of the first section (2311) and the second section (2312) of the two spring sheets (231) is arranged towards each other, and the two connection (2313) is used for clamping the circuit board (3).

5. The electrical connection structure according to claim 1, characterized by Two interlayers (12) are arranged on both sides of battery compartment (11) along a first direction, the shell (1) is provided with an opening (17), the opening (17) is arranged on one side of the battery compartment (11) along a second direction, the opening (17) is in communication with two interlayers (12) respectively, and the first direction and the second direction are arranged at an angle.

6. The electrical connection structure according to claim 5, characterized in that The connecting sheet (2) further includes a bending part (24), the bending part (24) connects the fixed part (21) and the second connecting part (23), the bending part (24) is arranged at an angle to the fixed part (21), and the bending part (24) is arranged on one side of the battery compartment (11) along the second direction.

7. The electrical connection structure according to claim 1, characterized by The shell (1) is provided with an open mouth (13) on one side along a third direction, so that the interlayer (12) and the battery compartment (11) are in communication with the outside;The connecting sheet (2) further includes a third connecting part (25), the third connecting part (25) connects the fixed part (21) and the first connecting part (22);A partition (14) is arranged between the interlayer (12) and the battery compartment (11), and the third connecting part (25) is arranged on one side of the partition (14) facing the open mouth (13).

8. The electrical connection structure according to any one of claims 1 to 7, characterized in that The fixed part (21) is provided with an elastic member (26), and the elastic member (26) is arranged between the fixed part (21) and the side wall of the interlayer (12).

9. A tool characterized by, The energy storage unit, the circuit board (3) and the electric connection structure as claimed in any one of claims 1-8 are included, the energy storage unit is accommodated in the battery compartment (11), the first connecting part (22) of the two connecting pieces (2) is connected with the positive electrode and the negative electrode of the energy storage unit, and the second connecting part (23) of the two connecting pieces (2) is detachably connected with the circuit board (3), so that the energy storage unit and the circuit board (3) are electrically connected through the connecting pieces (2).

10. The tool of claim 9, wherein, Further comprising a mounting member provided with a mounting cavity, the housing (1) is detachably connected with the mounting member, and the circuit board (3) is arranged in the mounting cavity.

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