Detachable rear cover electrifying structure of lint trimmer

Abstract

The detachable rear cover electrifying structure comprises a trimming main body provided with a handle part, a control panel and an installation cavity used for installing a battery are arranged in the handle part, a rear cover is detachably connected to the end, close to one side of the installation cavity, of the trimming main body, and an electrifying contact piece is fixedly arranged on the rear cover. The side, facing the mounting cavity, of the power connection contact piece is electrically connected with an elastic conductive piece. One end of the control panel is provided with a power connection part in electrical contact with an electrode on one side of the battery, and the other end of the control panel is provided with a conductive sheet in electrical contact with the power connection contact sheet. The rear cover can be communicated with the battery electrodes, and the emergency power-off effect of the trimmer can be achieved by dismounting the rear cover.

Description

Technical Field

[0001] The utility model relates to the technical field of lint trimmers, in particular to a detachable rear cover power supply structure of a lint trimmer. Background Art

[0002] The existing Chinese patent with announcement number CN213013495U discloses a rechargeable lint trimmer, comprising a handle and a trimming head connected to the handle, one end of the trimming head is open, a cutter head assembly and a driving motor for driving the cutter head assembly to rotate are arranged in the trimming head, and a mesh is also provided on the opening part of the trimming head; a battery for powering the driving motor is arranged in the handle, a circuit board is fixed on the battery, and a switch for controlling battery discharge is provided on the side of the handle close to the circuit board, a bracket is fixed in the handle, the battery is fixed on the bracket, an electric contact is fixed on the end of the battery close to the trimming head, and a connecting head that can be abutted with the electric contact is provided on the driving motor; the handle and the trimming head are detachably connected, a plurality of positioning posts are provided on the side of the trimming head close to the handle, a guide groove equal to the positioning posts is provided on the inner wall of the handle close to the trimming head, and an arc groove connected to the guide groove at the end away from the trimming head is also provided on the inner wall of the handle; the handle cover is detachably connected to the end of the handle away from the trimming head.

[0003] However, the above-mentioned lint trimmer has the following disadvantages: the battery of the lint trimmer is installed in the inner cavity of the handle and abuts against the left end bracket to achieve power supply, but the handle cover only presses the battery inside the handle to play a positioning role, and does not involve the function of connecting the positive and negative poles of the battery to power on. When the switch fails or other circumstances require emergency power off, it is necessary to remove the handle cover and pull out the battery to cut off the power, which is not fast enough and urgently needs to be improved. Utility Model Content

[0004] The utility model aims to provide a detachable rear cover power supply structure for a lint trimmer, which has the effect that the rear cover can be connected to the battery electrodes and the emergency power-off of the trimmer can be achieved by removing the rear cover.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions: a detachable rear cover power supply structure for a lint trimmer, comprising a trimming body provided with a handle portion, wherein the handle portion is provided with a control panel and a mounting cavity for installing a battery, and the rear cover is detachably connected to the end of the trimming body near the mounting cavity, wherein the rear cover is fixedly provided with an electrical contact piece, and the side of the electrical contact piece facing the mounting cavity is electrically connected to an elastic conductive member;

[0006] One end of the control board is provided with a power connection portion for electrically contacting an electrode on one side of the battery, and the other end of the control board is provided with a conductive sheet for electrically contacting the power contact sheet.

[0007] By adopting the above technical solution, the battery is installed in the installation cavity of the handle part during use, and then the back cover is installed at the end of the handle part, and the elastic conductive part is used to press the end of the battery. At this time, the electrode on one side of the battery contacts the power connection part of the control board and is energized, and the electrode on the other side of the battery contacts the power contact piece through the elastic conductive part and is energized. The power contact piece is electrically connected to the control board through the conductive piece, thereby realizing the power supply of the trimming body. Different from the back cover on the market that only presses against the battery to prevent it from falling, the back cover of the utility model is provided with a power contact piece and an elastic conductive piece, and the power contact piece, the elastic conductive piece and the conductive piece are electrically connected, and the power connection of the electrodes on both sides of the battery is realized in cooperation with the power connection part of the control board. The operator can realize emergency power-off of the trimmer by removing the back cover from the trimming body, which has the effect that the back cover can participate in connecting the battery electrodes and the emergency power-off of the trimmer can be realized by removing the back cover.

[0008] The present invention is further configured as follows: a pressure block is provided at the end of the trimming body extending toward the rear cover, and the end of the conductive sheet is bent to form a bent conductive portion. When the rear cover is installed on the end of the trimming body, the pressure block presses the bent conductive portion tightly against the electrical contact sheet.

[0009] By adopting the above technical solution, the bent conductive portion of the conductive sheet is pressed tightly against the electrical contact sheet using the pressing block, thereby improving the electrical connection between the conductive sheet and the electrical contact sheet.

[0010] The present invention is further configured as follows: the conductive sheet is provided with an anti-slip groove corresponding to the pressing block, and the pressing block is inserted into the anti-slip groove and cooperates with the anti-slip groove.

[0011] By adopting the above technical solution, the addition of the anti-slip groove can improve the installation accuracy of the conductive sheet on the trimming body, and at the same time prevent the conductive sheet from falling out of the installation cavity.

[0012] The present invention is further configured as follows: the power contact piece includes an integrally provided fixing portion and an elastic bent portion bent toward the conductive piece, the cross-section of the elastic bent portion being V-shaped, the power contact piece being fixedly connected to the back cover via the fixing portion, and the elastic bent portion being used to elastically abut against the conductive piece and contact the conductive piece for electrical conduction.

[0013] By adopting the above technical solution, the V-shaped elastic bending portion can enable the conductive sheet to undergo elastic deformation when it is pressed against the elastic bending portion, thereby increasing the pressing force between the conductive sheet and the electrical contact sheet, thereby improving the reliability of the electrical connection between the two.

[0014] The present invention is further configured as follows: an electric shock protrusion is provided on a side of the middle of the elastic bending portion facing the installation cavity, and an end of the elastic bending portion away from the fixing portion abuts against the back cover.

[0015] By adopting the above technical solution, the contact protrusion can achieve point contact between the power contact piece and the conductive piece, thereby increasing the pressing force between the power contact piece and the conductive piece, and further improving the power supply reliability between the power contact piece and the conductive piece.

[0016] The present invention is further configured as follows: the elastic conductive member is configured as a conductive spring; the electrical contact piece is integrally provided with a clamping portion corresponding to the conductive spring; and one end of the conductive spring is clamped and fixed to the clamping portion.

[0017] By adopting the above technical solution, the conductive spring can be elastically compressed and conductive, acting as a conductive element to ensure that the battery is energized through the conductive spring and the electrical contact piece, while also effectively preventing the battery from being crushed.

[0018] The present invention is further configured as follows: the rear cover is provided with a plurality of convex ribs, the convex ribs are provided with fasteners, and the electrical contact pieces are fixedly connected to the convex ribs via the fasteners.

[0019] By adopting the above technical solution, gaps are formed between adjacent ribs, which increases the heat dissipation space and improves the heat dissipation capacity of the back cover to the battery. In addition, the fixing method of the fasteners also allows the electrical contacts to be disassembled for replacement or repair.

[0020] The present invention is further configured as follows: the rear cover is provided with a plurality of card blocks, the trimming body is provided with a plurality of L-shaped grooves corresponding to the card blocks, the L-shaped grooves include a sliding section and a locking section, the card blocks slide to the locking section through the sliding section, and the rear cover is rotated relative to the trimming body so that the card blocks are locked and matched with the locking section.

[0021] By adopting the above technical solution, when the rear cover is installed on the end of the handle part, the two can be axially limited by the locking structure, which facilitates the disassembly and assembly of the rear cover on the handle part.

[0022] The present invention is further configured as follows: a plurality of positioning grooves are provided on both sides of the conductive sheet, and the trimming body is provided with a plurality of positioning protrusions on both sides of the conductive sheet, and the positioning protrusions are positioned and matched with the corresponding positioning grooves.

[0023] By adopting the above technical solution, the installation stability and anti-shake performance of the conductive sheet in the trimming body can be improved.

[0024] The utility model is further configured as follows: the trimming body is provided with a bracket component, the end of the conductive sheet is provided with a clamping portion, the bracket component is provided with a clamping groove corresponding to the clamping portion, the clamping portion is clamped and fixed in the clamping groove, so that one end of the conductive sheet is anti-detachable and cooperates with the bracket component.

[0025] By adopting the above technical solution, the installation firmness of the conductive sheet on the bracket component can be further improved.

[0026] In summary, the present invention has the following beneficial effects:

[0027] A rear cover is detachably connected to the rear end of the handle portion of the trimming main body, and the rear cover is provided with an electrical contact and an elastic conductive member. A conductive member is provided inside the trimming main body. When the battery is installed in the installation cavity of the handle portion, the electrode on one side of the battery is electrically connected to the control board through the electrical connection portion, and the other end of the battery is electrically connected to the control board through the elastic conductive member, the electrical contact and the conductive member in sequence. Different from the back cover on the market which only presses against the battery to prevent it from falling, the rear cover of the utility model is provided with an electrical contact and an elastic conductive member, and the electrical contact, the elastic conductive member and the conductive member are electrically connected to the conductive member, and the electrical connection of the electrodes on both sides of the battery is achieved in cooperation with the electrical connection portion of the control board. The operator can realize emergency power-off of the trimmer by removing the rear cover from the trimming main body, which has the effect that the rear cover can participate in connecting the battery electrodes and the emergency power-off of the trimmer can be achieved by removing the rear cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural diagram of the present utility model.

[0029] Figure 2 It is a longitudinal sectional view of the present utility model.

[0030] Figure 3 This utility model Figure 2 A partial enlarged view of area A in the middle.

[0031] Figure 4 It is an exploded view of the present utility model.

[0032] Figure 5 It is an exploded view of the present invention from another perspective.

[0033] Figure 6 It is an exploded view of the handle and the back cover of the utility model.

[0034] In the figure: 1. trimming body; a. handle part; 1a. mounting cavity; 1b. L-shaped groove; 1b1. sliding section; 1b2. locking section; 10. bracket component; 101. bracket frame; 1011. pressure block; 1012. positioning protrusion; 102. fixing cover; 102a. clamping groove; 11. control board; 11a. clamping groove; 12. power connection part; 13. conductive sheet; 13a. anti-slip groove; 13b. positioning groove; 131. bent conductive part; 132. clamping part; 133. hook part; 14. switch; 2. back cover; 21. power contact sheet; 211. fixing part; 212. elastic bending part; 2121. electric contact protrusion; 213. clamping part; 22. elastic conductive part; 23. rib; 231. fastener; 24. clamping block; 3. battery. DETAILED DESCRIPTION

[0035] The present invention will be further described below with reference to the accompanying drawings.

[0036] A detachable rear cover power supply structure for a hair ball trimmer, such as Figure 1-3 and Figure 6 As shown, it includes a trimming body 1 with a handle portion a, a control panel 11 and an installation cavity 1a for installing a battery 3 are provided in the handle portion a, and a rear cover 2 is detachably connected to the end of the trimming body 1 near the installation cavity 1a. The rear cover 2 is fixed with an electrical contact piece 21, and the electrical contact piece 21 is electrically connected to an elastic conductive member 22 on the side facing the installation cavity 1a; one end of the control panel 11 is provided with a power connection portion 12 for electrically contacting an electrode on one side of the battery 3, and the other end of the control panel 11 is provided with a conductive piece 13 for electrically contacting the power contact piece 21; The middle trimming body 1 is provided with a bracket component 10, which includes a bracket frame 101 and a fixed cover 102. A clamping portion 132 is provided at the end of the conductive sheet 13, and a clamping groove 102a is opened in the bracket component 10 corresponding to the clamping portion 132. The clamping portion 132 is clamped and fixed in the clamping groove 102a, so that one end of the conductive sheet 13 is anti-detached from the bracket component 10, which can further improve the firmness of the installation of the conductive sheet 13 on the bracket component 10. In addition, a switch 14 electrically connected to the control panel 11 is provided on the side of the handle portion a.

[0037] like Figure 3-4 and Figure 6As shown, a pressure block 1011 is provided at the end of the trimming body 1 extending toward the back cover 2, and the end of the conductive sheet 13 is bent to form a bent conductive portion 131. When the back cover 2 is installed on the end of the trimming body 1, the pressure block 1011 presses the bent conductive portion 131 onto the electrical contact sheet 21. By using the pressure block 1011 to press the bent conductive portion 131 of the conductive sheet 13 onto the electrical contact sheet 21, the electrical connection between the conductive sheet 13 and the electrical contact sheet 21 can be improved; the conductive sheet 13 is provided with an anti-slip groove 13a corresponding to the pressure block 1011, and the pressure block 1011 is inserted into the anti-slip groove 13a and cooperates with it to prevent slipping; the conductive sheet 13 is provided with an anti-slip groove 13a corresponding to the pressure block 1011, and the pressure block 1011 is inserted into the anti-slip groove 13a and cooperates with it to prevent slipping.

[0038] like Figure 3-6 As shown, the power contact piece 21 includes an integrally provided fixing portion 211 and an elastic bent portion 212 bent toward the conductive sheet 13. The cross section of the elastic bent portion 212 is V-shaped. The power contact piece 21 is fixedly connected to the back cover 2 through the fixing portion 211. The elastic bent portion 212 is used to elastically abut against the conductive sheet 13 and contact and conduct electricity. The V-shaped elastic bent portion 212 can make the conductive sheet 13 elastically deform when it abuts against the elastic bent portion 212, thereby improving the abutting force between the conductive sheet 13 and the power contact piece 21, thereby improving the reliability of the electrical connection between the two; a middle part of the elastic bent portion 212 is provided with an electric contact protrusion 2121 on the side facing the mounting cavity 1a, and the end of the elastic bent portion 212 away from the fixing portion 211 abuts against the back cover 2, contacting The electrical protrusion 2121 can realize point contact between the electrical contact piece 21 and the conductive piece 13, improve the pressing force between the electrical contact piece 21 and the conductive piece 13, and further improve the electrical reliability between the electrical contact piece 21 and the conductive piece 13; a number of positioning grooves 13b are provided on both sides of the conductive piece 13, and the trimming body 1 is provided with a number of positioning protrusions 1012 on both sides of the conductive piece 13. The positioning protrusions 1012 are positioned and matched with the corresponding positioning grooves 13b, which can improve the installation stability and anti-shake performance of the conductive piece 13 in the trimming body 1; and a hook portion 133 is provided at one end of the conductive piece 13 close to the control panel 11. The control panel 11 is fixedly connected to the bracket component 10, and the control panel 11 is provided with a clamping groove 11a corresponding to the clamping hook portion 133, and the clamping hook portion 133 is clamped and fixed in the clamping groove 11a.

[0039] like Figure 2-6As shown, the elastic conductive member 22 is set as a conductive spring, and the electrical contact piece 21 is integrally provided with a clamping portion 213 corresponding to the conductive spring. One end of the conductive spring is clamped and fixed on the clamping portion 213. The conductive spring can be elastically compressed and conductive, and acts as a conductive element to ensure that the battery 3 is energized through the conductive spring and the electrical contact piece 21, while effectively preventing the battery 3 from being crushed; the back cover 2 is provided with a plurality of ribs 23, and the ribs 23 are provided with fasteners 231. The electrical contact piece 21 is fixedly connected to the ribs 23 by the fasteners 231. A gap is formed between adjacent ribs 23, which increases the heat dissipation space and can improve the back cover 2 The heat dissipation capacity of the battery 3 is improved. In addition, the fixing method of the fastener 231 also enables the electrical contact piece 21 to be disassembled for replacement or maintenance; the back cover 2 is provided with a plurality of card blocks 24, and the trimming body 1 is provided with a plurality of L-shaped grooves 1b corresponding to the card blocks 24. The L-shaped groove 1b includes a sliding section 1b1 and a locking section 1b2. The card block 24 slides to the locking section 1b2 through the sliding section 1b1, and the back cover 2 is rotated relative to the trimming body 1, so that the card block 24 and the locking section 1b2 are locked and matched, so that when the back cover 2 is installed on the end of the handle part a, the two can be axially limited by the locking structure, which facilitates the disassembly and assembly of the back cover 2 on the handle part a.

[0040] The basic working principle of the present invention is as follows: the rear end of the handle portion a of the trimming body 1 is detachably connected to the rear cover 2, the rear cover 2 is provided with an electrical contact piece 21 and an elastic conductive member 22, and a conductive sheet 13 is provided inside the trimming body 1. When the battery 3 is installed in the mounting cavity 1a of the handle portion a, the electrode on one side of the battery 3 is electrically connected to the control board 11 through the electrical connection portion 12, and the other end of the battery 3 is electrically connected to the control board 11 through the elastic conductive member 22, the electrical contact piece 21 and the conductive sheet 13 in sequence. When in use, the battery 3 is installed in the mounting cavity 1a of the handle portion a, and then the rear cover 2 is installed on the end of the handle portion a, and the elastic conductive member 22 is used to press against the end of the battery 3. At this time, the electrode on one side of the battery 3 contacts the electrical connection portion 12 of the control board 11 and is energized. The battery 3 The other side electrode is in contact with the power contact piece 21 through the elastic conductive piece 22 and is energized. The power contact piece 21 is electrically connected to the control board 11 through the conductive piece 13, thereby realizing the power supply of the trimming body 1. Different from the back cover 2 on the market which only presses against the battery 3 to prevent it from falling, the back cover 2 of the utility model is provided with a power contact piece 21 and an elastic conductive piece 22. The power contact piece 21, the elastic conductive piece 22 and the conductive piece 13 are electrically connected, and the power connection part 12 of the control board 11 is cooperated with the power connection part 12 of the control board 11 to realize the power supply of the electrodes on both sides of the battery 3. The operator can realize the emergency power-off of the trimmer by removing the back cover 2 from the trimming body 1, which has the effect that the back cover 2 can participate in the communication with the battery 3 electrodes and the emergency power-off of the trimmer can be realized by removing the back cover 2.

[0041] The above description is only a preferred embodiment of the present invention. Therefore, any equivalent changes or modifications made according to the structure, features and principles described in the scope of the present invention patent application are included in the scope of the present invention patent application.

Claims

1. A detachable rear cover power supply structure for a lint trimmer, comprising a trimming body (1) provided with a handle portion (a), characterized in that: The handle portion (a) is provided with a control panel (11) and a mounting cavity (1a) for installing a battery. The end portion of the trimming body (1) close to the mounting cavity (1a) is detachably connected to a back cover (2). The back cover (2) is fixed with an electrical contact piece (21). The side of the electrical contact piece (21) facing the mounting cavity (1a) is electrically connected to an elastic conductive member (22). One end of the control board (11) is provided with a power connection portion (12) for electrically contacting an electrode on one side of a battery, and the other end of the control board (11) is provided with a conductive sheet (13) for electrically contacting an electrical contact sheet (21).

2. The detachable rear cover power supply structure of the lint trimmer according to claim 1, characterized in that: The end of the trimming body (1) is extended toward the rear cover (2) and is provided with a pressing block (1011); the end of the conductive sheet (13) is bent to form a bent conductive portion (131); when the rear cover (2) is mounted on the end of the trimming body (1), the pressing block (1011) presses the bent conductive portion (131) tightly against the electrical contact sheet (21).

3. The detachable rear cover power supply structure of the lint trimmer according to claim 2, characterized in that: The conductive sheet (13) is provided with an anti-slip groove (13a) corresponding to the pressing block (1011), and the pressing block (1011) is inserted into the anti-slip groove (13a) and cooperates with the anti-slip groove (13a).

4. The detachable rear cover power supply structure of a lint trimmer according to claim 1, characterized in that: The power contact piece (21) comprises an integrally arranged fixing portion (211) and an elastic bending portion (212) bent toward the conductive piece (13); the cross section of the elastic bending portion (212) is V-shaped; the power contact piece (21) is fixedly connected to the back cover (2) via the fixing portion (211); and the elastic bending portion (212) is used to elastically abut against and contact the conductive piece (13) to conduct electricity.

5. The detachable rear cover power supply structure of the lint trimmer according to claim 4, characterized in that: An electric contact protrusion (2121) is provided on a side of the middle of the elastic bending portion (212) facing the installation cavity (1a), and an end of the elastic bending portion (212) away from the fixing portion (211) abuts against the back cover (2).

6. The detachable rear cover power supply structure of a lint trimmer according to claim 1, characterized in that: The elastic conductive member (22) is configured as a conductive spring, and the electrical contact piece (21) is integrally provided with a clamping portion (213) corresponding to the conductive spring, and one end of the conductive spring is clamped and fixed on the clamping portion (213).

7. The detachable rear cover power supply structure of a lint trimmer according to claim 1, characterized in that: The rear cover (2) is provided with a plurality of convex ribs (23), and fasteners (231) are provided on the convex ribs (23). The electrical contact piece (21) is fixedly connected to the convex ribs (23) via the fasteners (231).

8. The detachable rear cover power supply structure of a lint trimmer according to claim 1, characterized in that: The rear cover (2) is provided with a plurality of clamping blocks (24); the trimming body (1) is provided with a plurality of L-shaped grooves (1b) corresponding to the clamping blocks (24); the L-shaped grooves (1b) include a sliding section (1b1) and a locking section (1b2); the clamping blocks (24) slide to the locking section (1b2) through the sliding section (1b1), and the rear cover (2) is rotated relative to the trimming body (1) so that the clamping blocks (24) are locked and matched with the locking section (1b2).

9. The detachable rear cover power supply structure of a lint trimmer according to claim 1, characterized in that: A plurality of positioning grooves (13b) are provided on both sides of the conductive sheet (13); the trimming body (1) is provided with a plurality of positioning protrusions (1012) on both sides of the conductive sheet (13); the positioning protrusions (1012) are positioned and matched with the corresponding positioning grooves (13b).

10. The detachable rear cover power supply structure of a lint trimmer according to claim 1, characterized in that: The trimming body (1) is provided with a bracket component (10), and a clamping portion (132) is provided at the end of the conductive sheet (13). The bracket component (10) is provided with a clamping groove (102a) corresponding to the clamping portion (132). The clamping portion (132) is clamped and fixed in the clamping groove (102a), so that one end of the conductive sheet (13) and the bracket component (10) are anti-detachable.

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