CN217985361U - Earphone charging device and wireless earphone charging box - Google Patents

Earphone charging device and wireless earphone charging box Download PDF

Info

Publication number
CN217985361U
CN217985361U CN202222258632.0U CN202222258632U CN217985361U CN 217985361 U CN217985361 U CN 217985361U CN 202222258632 U CN202222258632 U CN 202222258632U CN 217985361 U CN217985361 U CN 217985361U
Authority
CN
China
Prior art keywords
charging
earphone
control board
main control
elastic sheet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202222258632.0U
Other languages
Chinese (zh)
Inventor
何新波
王丽
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Horn Audio Co Ltd
Original Assignee
Shenzhen Horn Audio Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenzhen Horn Audio Co Ltd filed Critical Shenzhen Horn Audio Co Ltd
Priority to CN202222258632.0U priority Critical patent/CN217985361U/en
Application granted granted Critical
Publication of CN217985361U publication Critical patent/CN217985361U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The application provides an earphone charging device and a wireless earphone charging box. The earphone charging device comprises a shell and a charging assembly; the shell comprises an upper shell and a bottom shell which are mutually and rotatably connected; the charging assembly comprises an earphone mounting seat, a charging detection piece and a first charging elastic sheet, the charging detection piece comprises a charging detection main control board, a second charging elastic sheet, a charging end seat and a sampling resistor, the sampling resistor is arranged on the charging detection main control board, the first end of the sampling resistor is abutted to the first charging elastic sheet, and the second end of the sampling resistor is connected with the detection end of the charging detection main control board. Set up sampling resistor on the detection master control board charges, sampling resistor samples the charging current of earphone, is convenient for acquire the real-time charging current of earphone to be convenient for monitor the charging condition of earphone that charges, need not to use test fixture and sampling equipment in addition, reduced the earphone effectively and charged the detection cost.

Description

Earphone charging device and wireless earphone charging box
Technical Field
The utility model relates to an earphone charging box technical field especially relates to an earphone charging device and wireless earphone charging box.
Background
Currently, a TWS (True-Wireless-Stereo) headset is a new Wireless headset variety, and has become a mainstream in the development direction of Wireless headsets. The TWS earphone is charged through the charging box, and the battery in the charging box is used for supplementing electric energy through an external charging wire. Although the TWS true wireless earphone has the lithium battery and the protection chip, the TWS true wireless earphone is unable to be timely and effectively found due to the fact that the TWS true wireless earphone is assembled into a complete machine and damage caused by poor incoming materials of a battery body and the assembly process is caused, so that a product cannot be charged or cannot be fully charged, and a programmable power supply instrument is generally adopted to carry out charging current acquisition test so as to detect charging.
However, the conventional earphone charging detection is usually performed on a specific fixture, and a special acquisition device, such as a programmable power supply, is required, so that the cost of the earphone charging detection is excessive.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the weak point among the prior art, providing an effectively reduce earphone charging device and wireless earphone charging box that earphone charges and detects the cost.
The purpose of the utility model is realized through the following technical scheme:
a headset charging device, comprising: a housing and a charging assembly; the shell comprises an upper shell and a bottom shell which are mutually and rotatably connected, and an accommodating space is formed between the upper shell and the bottom shell; the charging assembly comprises an earphone mounting seat, a charging detection piece and a first charging elastic sheet, the earphone mounting seat is arranged in the accommodating space and is provided with an earphone charging placing hole, the earphone charging placing hole is used for accommodating at least part of an earphone, the first charging elastic sheet is connected with the earphone mounting seat and is also arranged corresponding to the earphone charging placing hole, and the first charging elastic sheet is used for abutting against a charging end of the earphone; the charging detection piece comprises a charging detection main control board, a second charging elastic sheet, a charging end seat and a sampling resistor, the charging detection main control board is connected with the earphone installation seat, the second charging elastic sheet is electrically connected with a charging output end of the charging detection main control board, the second charging elastic sheet is also abutted to the first charging elastic sheet, the sampling resistor is arranged on the charging detection main control board, the first end of the sampling resistor is abutted to the first charging elastic sheet, the second end of the sampling resistor is connected with a detection end of the charging detection main control board, the charging end seat is connected with a charging input end of the charging detection main control board, and the charging end seat is used for being connected with an external power supply.
In one embodiment, the earphone mounting seat is provided with a mounting groove communicated with the earphone charging placing hole, and a part of the earphone is accommodated in the mounting groove.
In one embodiment, the earphone mounting seat is further provided with an elastic piece mounting groove communicated with the earphone charging placing hole, and at least part of the first charging elastic piece is clamped in the elastic piece mounting groove.
In one embodiment, the earphone charging device further comprises a clamping convex block, at least one of the earphone mounting seat and the bottom shell is connected with the clamping convex block, at least one of the earphone mounting seat and the bottom shell is provided with a clamping groove, and the clamping convex block is clamped in the clamping groove.
In one embodiment, the clamping projection is provided with a clamping inclined surface, and the clamping inclined surface inclines towards the direction far away from the upper shell.
In one embodiment, the earphone mounting base is provided with a first groove, and part of the charging detection main control board is clamped in the first groove.
In one embodiment, the charge detection main control board is provided with a second groove, and part of the bottom case is clamped in the second groove.
In one embodiment, the charging assembly further comprises two limiting posts connected with the earphone mounting seat, the two limiting posts are located on one side, away from the upper shell, of the earphone mounting seat, and the charging detection main control board is arranged between the two limiting posts.
In one embodiment, the first charging elastic sheet includes two sets of charging portions, each charging portion corresponds to one earphone, each charging portion includes a positive charging portion and a negative charging portion, the positive charging portion is connected to a positive electrode of the earphone, the negative charging portion is connected to a negative electrode of the earphone, and a first end of the sampling resistor abuts against the negative charging portion.
A wireless earphone charging box comprises the earphone charging device in any one of the above embodiments.
Compared with the prior art, the utility model discloses at least, following advantage has:
set up sampling resistor on the detection master control board charges, sampling resistor samples the charging current of earphone, is convenient for acquire the real-time charging current of earphone to be convenient for monitor the charging condition of the earphone that charges, need not to use test fixture and sampling equipment in addition, reduced the earphone effectively and charged the detection cost.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic diagram of an embodiment of an earphone charging device;
fig. 2 isbase:Sub>A cross-sectional view of the headset charging device of fig. 1 taken along the directionbase:Sub>A-base:Sub>A;
fig. 3 is an exploded view of the earphone charging device shown in fig. 1;
fig. 4 is a schematic view of a charging detection member of the earphone charging device shown in fig. 1;
fig. 5 is a schematic view of a headset mount of the headset charging device shown in fig. 1;
fig. 6 is an enlarged schematic view of the earphone charging device shown in fig. 3 at A1;
fig. 7 is a circuit diagram corresponding to the charging detection main control board of the earphone charging device shown in fig. 1;
fig. 8 is a circuit diagram corresponding to the charging terminal base of the earphone charging device shown in fig. 1.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are illustrated in the accompanying drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a single embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The utility model relates to an earphone charging device. In one embodiment, the headset charging device comprises a housing and a charging assembly. The shell comprises an upper shell and a bottom shell which are mutually and rotatably connected. An accommodating space is formed between the upper shell and the bottom shell. The charging assembly comprises an earphone mounting seat, a charging detection piece and a first charging elastic piece. The earphone mounting seat is arranged in the accommodating space and provided with an earphone charging placing hole, and the earphone charging placing hole is used for accommodating at least part of an earphone. The first charging elastic sheet is connected with the earphone mounting seat, the first charging elastic sheet is also arranged corresponding to the earphone charging placing hole, and the first charging elastic sheet is used for being abutted to the charging end of the earphone. The charging detection piece comprises a charging detection main control board, a second charging elastic sheet, a charging end seat and a sampling resistor. The charging detection main control board is connected with the earphone mounting seat. The second charging elastic sheet is electrically connected with the charging output end of the charging detection main control panel, and the second charging elastic sheet is also abutted to the first charging elastic sheet. The sampling resistor is arranged on the charging detection main control board, the first end of the sampling resistor is abutted to the first charging elastic sheet, and the second end of the sampling resistor is connected with the detection end of the charging detection main control board. The charging end base is connected with the charging input end of the charging detection main control panel, and the charging end base is used for being connected with an external power supply. Set up sampling resistor on the detection master control board charges, sampling resistor samples the charging current of earphone, is convenient for acquire the real-time charging current of earphone to be convenient for monitor the charging condition of earphone that charges, need not to use test fixture and sampling equipment in addition, reduced the earphone effectively and charged the detection cost.
Please refer to fig. 1, which is a schematic structural diagram of an earphone charging device according to an embodiment of the present invention.
The earphone charging device 10 of an embodiment includes a housing 100 and a charging assembly 200. The housing 100 includes an upper shell 110 and a lower shell 120 rotatably coupled to each other. Referring to fig. 2 and 3, an accommodating space 102 is formed between the upper casing 110 and the bottom casing 120. Referring to fig. 4 and 5, the charging assembly 200 includes an earphone mounting base 210, a charging detection element 220, and a first charging spring 230. The earphone mounting seat 210 is disposed in the accommodating space 102, and the earphone mounting seat 210 has an earphone charging placing hole 202, and the earphone charging placing hole 202 is used for receiving at least a part of an earphone. The first charging spring sheet 230 is connected to the earphone mounting base 210, the first charging spring sheet 230 is further disposed corresponding to the earphone charging placing hole 202, and the first charging spring sheet 230 is used for abutting against a charging end of the earphone. The charging detection element 220 includes a charging detection main control board 222, a second charging spring 224, a charging terminal seat 226 and a sampling resistor 228. The charging detection main control board 222 is connected to the earphone mounting base 210. The second charging spring plate 224 is electrically connected to the charging output terminal of the charging detection main control board 222, and the second charging spring plate 224 is further abutted against the first charging spring plate 230. The sampling resistor 228 is disposed on the charging detection main control board 222, a first end of the sampling resistor 228 is abutted to the first charging spring 230, and a second end of the sampling resistor 228 is connected to a detection end of the charging detection main control board 222. The charging terminal block 226 is connected to a charging input terminal of the charging detection main control board 222, and the charging terminal block 226 is used for being connected to an external power supply.
In this embodiment, set up sampling resistor 228 on charging and detecting main control board 222, sampling resistor 228 samples the charging current of earphone, is convenient for obtain the real-time charging current of earphone to be convenient for monitor the charging condition of the earphone that charges, need not to use test fixture and sampling equipment in addition, reduced earphone charging detection cost effectively. In another embodiment, the charging output terminal of the charging detection main control board 222 is electrically connected to the second charging spring piece 224 through a rechargeable battery, or the charging output terminal of the charging detection main control board 222 is electrically connected to the second charging spring piece 224 through a rechargeable battery and is also electrically connected to the second charging spring piece 224. The charging detection main control board 222 is provided with a charging detection chip, so that the current collected by the sampling resistor 228 can be analyzed and processed conveniently, the charging current of the earphone can be detected, and the detection result can be led out through a data line on the charging end seat 226.
In one embodiment, referring to fig. 2, the earphone mounting base 210 is opened with a mounting groove 204 communicated with the earphone charging placing hole 202, and the mounting groove 204 accommodates a portion of the earphone. In the present embodiment, the opening of the mounting groove 204 faces the upper shell 110, the mounting groove 204 and the earphone charging placement hole 202 together receive the earphone, specifically, the mounting groove 204 receives a main body portion of the earphone, and the earphone charging placement hole 202 receives an earphone rod of the earphone. Thus, when the earphone is placed on the earphone mounting seat 210, the mounting groove 204 plays a main supporting role, and the earphone charging placing hole 202 is used for guiding the charging end on the earphone rod to be in contact with the first charging spring piece 230.
In one embodiment, referring to fig. 5, the earphone mounting seat 210 further defines a spring piece mounting groove 206 communicated with the earphone charging placing hole 202, and at least a portion of the first charging spring piece 230 is clamped in the spring piece mounting groove 206. In this embodiment, the elastic piece mounting groove 206 is located on a side of the earphone mounting base 210 away from the upper shell 110, that is, an opening of the elastic piece mounting groove 206 faces the charging detection main control board 222. The elastic piece mounting groove 206 is used for accommodating the first charging elastic piece 230, so that the first charging elastic piece 230 is stably clamped on the earphone mounting seat 210, the connection between the first charging elastic piece 230 and the earphone mounting seat 210 is more stable, and moreover, the first charging elastic piece 230 is positioned between the earphone mounting seat 210 and the second charging elastic piece 224, so that the first charging elastic piece 230 and the first charging elastic piece 230 are opposite to each other and are in contact with each other.
In one embodiment, referring to fig. 5 and fig. 6, the earphone charging device 10 further includes a clamping protrusion 300, at least one of the earphone mounting base 210 and the bottom case 120 is connected to the clamping protrusion 300, at least one of the earphone mounting base 210 and the bottom case 120 is provided with a clamping groove 208, and the clamping protrusion 300 is clamped in the clamping groove 208. In this embodiment, joint lug 300 set up in on the inner wall of drain pan 120, joint groove 208 sets up in on the earphone mount pad 210, joint lug 300 with joint groove 208 corresponds the setting each other, is convenient for with joint lug 300 card is gone into in the joint groove 208, makes joint lug 300 stably set up in the joint groove 208, improved earphone mount pad 210 with connection stability between the drain pan 120.
Further, referring to fig. 6, the locking protrusion 300 has a locking inclined plane 310, and the locking inclined plane 310 is inclined away from the upper shell 110. In this embodiment, the earphone mounting seat 210 is detachably connected to the bottom shell 120, and a distance between the clamping inclined plane 310 and the earphone mounting seat 210 gradually increases in a direction approaching the upper shell 110. Thus, when the earphone mounting seat 210 is mounted on the bottom case 120, the earphone mounting seat 210 moves toward the bottom case 120 under the guidance of the inclined clamping surface 310, so that the earphone mounting seat 210 is mounted in the accommodating space 102 more quickly, and the mounting efficiency of the earphone mounting seat 210 and the bottom case 120 is improved.
In one embodiment, referring to fig. 5, the earphone mounting base 210 is provided with a first groove 201, and a portion of the charging detection main control board 222 is clamped in the first groove 201. In this embodiment, first recess 201 is located earphone mount pad 210 deviates from one side of epitheca 110, the opening orientation of first recess 201 charge and detect main control board 222, be convenient for charge the partial card that detects main control board 222 and locate in the first recess 201, make charge detect main control board 222 with earphone mount pad 210 stabilizes the joint, has improved charge detect main control board 222 with connection stability between the earphone mount pad 210.
In one embodiment, referring to fig. 4, the charging detection main control board 222 is provided with a second groove 203, and a portion of the bottom case 120 is clamped in the second groove 203. In this embodiment, the second groove 203 is located on the charging detection main control board 222, the opening of the second groove 203 faces towards the earphone mounting seat 210, so that the partial card of the earphone mounting seat 210 is located in the second groove 203, so that the charging detection main control board 222 is stably connected with the earphone mounting seat 210 in a clamping manner, and the connection stability between the charging detection main control board 222 and the earphone mounting seat 210 is further improved.
In one embodiment, referring to fig. 5, the charging assembly 200 further includes two limiting posts 240 connected to the earphone mounting base 210, the two limiting posts 240 are located on a side of the earphone mounting base 210 away from the upper shell 110, and the charging detection main control board 222 is disposed between the two limiting posts 240. In this embodiment, two the spacing post 240 sets up relatively, two spacing post 240 respectively with the detection main control panel 222 butt of charging is convenient for with the detection main control panel 222 centre gripping of charging, two promptly spacing post 240 centre gripping the detection main control panel 222 of charging. Thus, when the charging detection main control board 222 is installed on the earphone installation seat 210, the two limiting posts 240 limit the position of the charging detection main control board 222, so that the sliding probability of the charging detection main control board 222 on the earphone installation seat 210 is reduced, and the installation stability of the charging detection main control board 222 on the earphone installation seat 210 is improved.
In one embodiment, the first charging elastic sheet includes two sets of charging portions, each charging portion corresponds to one earphone, each charging portion includes a positive charging portion and a negative charging portion, the positive charging portion is connected to a positive electrode of the earphone, the negative charging portion is connected to a negative electrode of the earphone, and a first end of the sampling resistor abuts against the negative charging portion. In this embodiment, each group the portion that charges corresponds with an earphone, and the positive negative pole on the earphone respectively with the anodal portion that charges and the negative pole portion that charges of corresponding group butt, be convenient for carry out charging current sampling respectively to two earphones about to.
In the above embodiments, fig. 7 is a circuit diagram of the charging detection main control board, and fig. 8 is a circuit diagram of the charging terminal base.
In one embodiment, the present application further provides a wireless headset charging box, including the headset charging device according to any one of the above embodiments. In this embodiment, the earphone charging device includes a housing and a charging assembly. The shell comprises an upper shell and a bottom shell which are mutually and rotatably connected. An accommodating space is formed between the upper shell and the bottom shell. The charging assembly comprises an earphone mounting seat, a charging detection piece and a first charging elastic piece. The earphone mounting seat is arranged in the accommodating space and provided with an earphone charging placing hole, and the earphone charging placing hole is used for accommodating at least part of an earphone. The first charging elastic sheet is connected with the earphone mounting seat, the first charging elastic sheet is also arranged corresponding to the earphone charging placing hole, and the first charging elastic sheet is used for being abutted to the charging end of the earphone. The charging detection piece comprises a charging detection main control board, a second charging elastic sheet, a charging end seat and a sampling resistor. The charging detection main control board is connected with the earphone mounting seat. The second charging elastic sheet is electrically connected with the charging output end of the charging detection main control board, and the second charging elastic sheet is also abutted to the first charging elastic sheet. The sampling resistor is arranged on the charging detection main control board, the first end of the sampling resistor is abutted to the first charging elastic sheet, and the second end of the sampling resistor is connected with the detection end of the charging detection main control board. The charging end seat is connected with the charging input end of the charging detection main control panel, and the charging end seat is used for being connected with an external power supply. Set up sampling resistor on the detection master control board charges, sampling resistor samples the charging current of earphone, is convenient for acquire the real-time charging current of earphone to be convenient for monitor the charging condition of earphone that charges, need not to use test fixture and sampling equipment in addition, reduced the earphone effectively and charged the detection cost.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. An earphone charging device, comprising:
the shell comprises an upper shell and a bottom shell which are mutually and rotatably connected, and an accommodating space is formed between the upper shell and the bottom shell;
the charging assembly comprises an earphone mounting seat, a charging detection piece and a first charging elastic sheet, the earphone mounting seat is arranged in the accommodating space and is provided with an earphone charging placing hole, the earphone charging placing hole is used for accommodating at least part of an earphone, the first charging elastic sheet is connected with the earphone mounting seat, the first charging elastic sheet is also arranged corresponding to the earphone charging placing hole, and the first charging elastic sheet is used for abutting against a charging end of the earphone; the charging detection piece comprises a charging detection main control board, a second charging elastic sheet, a charging end seat and a sampling resistor, the charging detection main control board is connected with the earphone installation seat, the second charging elastic sheet is electrically connected with a charging output end of the charging detection main control board, the second charging elastic sheet is also abutted to the first charging elastic sheet, the sampling resistor is arranged on the charging detection main control board, the first end of the sampling resistor is abutted to the first charging elastic sheet, the second end of the sampling resistor is connected with a detection end of the charging detection main control board, the charging end seat is connected with a charging input end of the charging detection main control board, and the charging end seat is used for being connected with an external power supply.
2. The earphone charging device according to claim 1, wherein the earphone mounting base is formed with a mounting recess communicating with the earphone charging placement hole, and a portion of the earphone is received in the mounting recess.
3. The earphone charging device according to claim 1, wherein the earphone mounting base further defines a spring mounting groove communicated with the earphone charging placement hole, and at least a portion of the first charging spring is clamped in the spring mounting groove.
4. The earphone charging device according to claim 1, further comprising a clamping protrusion, wherein at least one of the earphone mounting base and the bottom case is connected with the clamping protrusion, at least one of the earphone mounting base and the bottom case is provided with a clamping groove, and the clamping protrusion is clamped in the clamping groove.
5. The headset charging device of claim 4, wherein the snap tab has a snap ramp that slopes away from the top housing.
6. The earphone charging device of claim 1, wherein the earphone mounting base is provided with a first groove, and a part of the charging detection main control board is clamped in the first groove.
7. The earphone charging device of claim 1, wherein the charging detection main control board is provided with a second groove, and a portion of the bottom case is clamped in the second groove.
8. The headset charging device of claim 1, wherein the charging assembly further comprises two limiting posts connected to the headset mounting base, the two limiting posts are located on a side of the headset mounting base away from the upper housing, and the charging detection main control board is arranged between the two limiting posts.
9. The apparatus as claimed in claim 1, wherein the first charging spring comprises two charging portions, each charging portion corresponds to one of the earphones, each charging portion comprises a positive charging portion and a negative charging portion, the positive charging portion is connected to a positive electrode of the earphone, the negative charging portion is connected to a negative electrode of the earphone, and the first end of the sampling resistor abuts against the negative charging portion.
10. A wireless headset charging box, characterized in that it comprises a headset charging device according to any one of claims 1 to 9.
CN202222258632.0U 2022-08-25 2022-08-25 Earphone charging device and wireless earphone charging box Active CN217985361U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202222258632.0U CN217985361U (en) 2022-08-25 2022-08-25 Earphone charging device and wireless earphone charging box

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202222258632.0U CN217985361U (en) 2022-08-25 2022-08-25 Earphone charging device and wireless earphone charging box

Publications (1)

Publication Number Publication Date
CN217985361U true CN217985361U (en) 2022-12-06

Family

ID=84260220

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202222258632.0U Active CN217985361U (en) 2022-08-25 2022-08-25 Earphone charging device and wireless earphone charging box

Country Status (1)

Country Link
CN (1) CN217985361U (en)

Similar Documents

Publication Publication Date Title
CA2817386C (en) Lithium ion battery and charger thereof
CA2075813C (en) Integral hang-up and battery charging apparatus
US6313604B1 (en) Charging seat for a rechargeable flashlight
CN214315338U (en) Mobile phone shell
CN102790192A (en) Battery holder
CN217985361U (en) Earphone charging device and wireless earphone charging box
CN218647027U (en) Four-wire button battery test fixture
CN210958754U (en) Earphone charging contact board and charging box thereof
CN213878173U (en) Cylindrical battery with magnetic attraction type charging structure
CN214411333U (en) Battery and terminal equipment
CN215955430U (en) Battery with a battery cell
CN213485139U (en) Independent intelligent earphone of host computer detachable structure is realized through magnetic adsorption
CN106712141A (en) Battery charging device
CN217334351U (en) Rechargeable battery, electronic equipment and charging system
CN211829103U (en) Rechargeable battery
CN212969121U (en) Charger with wireless charging and probe charging functions
CN219831150U (en) Clamp and battery testing device
CN210608620U (en) Charging card seat and charging system thereof
CN210468840U (en) Dust-proof fast-assembling charger
CN218003578U (en) Antenna element aluminum casting detection tool
CN219627863U (en) Portable multichannel wireless microphone
CN213937490U (en) Mobile power supply for flashlight charging
CN219106585U (en) Charging port mounting structure
CN217649312U (en) AGV car charging device
CN217643651U (en) Earphone assembly

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant