CN216056369U - Charging protection circuit and charging seat - Google Patents
Charging protection circuit and charging seat Download PDFInfo
- Publication number
- CN216056369U CN216056369U CN202121631386.8U CN202121631386U CN216056369U CN 216056369 U CN216056369 U CN 216056369U CN 202121631386 U CN202121631386 U CN 202121631386U CN 216056369 U CN216056369 U CN 216056369U
- Authority
- CN
- China
- Prior art keywords
- charging
- circuit
- power management
- infrared transmitting
- tube
- 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
Links
- 229910044991 metal oxide Inorganic materials 0.000 claims description 2
- 150000004706 metal oxides Chemical class 0.000 claims description 2
- 239000004065 semiconductor Substances 0.000 claims description 2
- 238000001514 detection method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Images
Abstract
The utility model discloses a charging protection circuit and a charging seat, which are used for connecting an external power supply and charging equipment, and comprise: the power supply management circuit is connected with an external power supply and used for providing electric energy for the charging equipment; the charging port is used for being connected with charging equipment to form a charging loop; the switch circuit is positioned between the power management circuit and the charging port and used for controlling the connection and disconnection of the charging end and the power management circuit; the switching circuit is provided with an infrared transmitting and receiving circuit and is used for detecting whether the charging equipment is connected with the switching circuit or not and controlling the switching circuit.
Description
Technical Field
The utility model relates to the field, in particular to a charging protection circuit and a charging seat.
Background
The flashlight is widely applied to life as a common mobile lighting device. With the growing up of environmental protection consciousness, most of the existing flashlights are rechargeable, and in order to lighten the quality of the flashlights and improve the endurance, a plurality of rechargeable hands adopt a mode of matching a flashlight main body with a charging seat.
In order to ensure the safety of the charging seat, the power supply inside the charging seat needs to be controlled to be turned on and off by detecting whether the flashlight is located on the charging seat. The current detection means mainly utilizes a Hall switch in a charging seat to detect a magnet at a specific position in the flashlight for judgment. However, this detection method requires high costs and assembly.
Disclosure of Invention
The utility model aims to provide a charging protection circuit and a charging seat.
The technical scheme adopted by the utility model for solving the technical problems is as follows:
a charge protection circuit for connecting an external power source and a charging device, comprising:
the power supply management circuit is connected with an external power supply and used for providing electric energy for the charging equipment;
the charging port is used for being connected with charging equipment to form a charging loop;
the switch circuit is positioned between the power management circuit and the charging port and used for controlling the connection and disconnection of the charging end and the power management circuit;
the switching circuit is provided with an infrared transmitting and receiving circuit and is used for detecting whether the charging equipment is connected with the switching circuit or not and controlling the switching circuit.
Furthermore, the switch circuit comprises a control chip, an infrared transmitting and receiving circuit, an MOS (metal oxide semiconductor) tube and a triode;
the control chip and the infrared transmitting and receiving circuit are connected with a power supply port of the power management circuit;
the source electrode of the MOS tube is connected with the power management circuit, the drain electrode of the MOS tube is connected with the charging port, and the grid electrode of the MOS tube is connected with the collector electrode of the triode;
the emitting electrode of the triode is grounded, and the base electrode of the triode is connected with the level output pin of the control chip;
the infrared transmitting and receiving circuit is connected with an input pin of the control chip;
the control chip is used for controlling the triode according to feedback of the infrared transmitting and receiving circuit, the triode is used for controlling the MOS tube, and the MOS tube is used for controlling the conduction and the cut-off of the power management circuit and the charging port.
Further, the infrared transmitting and receiving circuit comprises an infrared transmitting tube and an infrared receiving tube;
the infrared transmitting tube and the infrared receiving tube are respectively connected with a power supply port of the power management circuit and are connected in parallel to form a loop;
and a fulcrum arranged between the infrared receiving tube and the power supply port of the power management circuit is connected with an input pin of the control chip.
Further, the power management circuit comprises a power management chip, a first indicator light and a second indicator light;
the first indicator light is connected with a charging output indicator pin of the power management chip, and the second indicator light is connected with a charging completion indicator pin of the power management chip.
Further, the model of the power management chip is AP 5056.
A charging seat comprises a shell and the charging protection circuit, wherein the shell is provided with a window corresponding to an infrared transmitting and receiving circuit.
By applying the technical scheme of the utility model, the infrared transmitting tube continuously works when the charging seat is in a power-on state, when the flashlight leaves the charging seat, the infrared receiving tube cannot receive infrared rays due to lack of a reflecting surface, and when the flashlight is positioned on the charging seat, the infrared rays emitted by the infrared transmitting tube are reflected to the infrared receiving tube through the surface of the flashlight, so that electric signals are generated to control the circuit in the charging seat to be conducted for charging, namely, the position detection of the flashlight is realized through the single side of the charging seat, the cost is lower, and the installation is convenient.
Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model. The objectives and other advantages of the utility model will be realized and attained by the structure particularly pointed out in the written description and drawings.
Drawings
The present invention will be described in detail below with reference to the accompanying drawings so that the above advantages of the present invention will be more apparent.
FIG. 1 is a partial circuit diagram of a charge protection circuit of the present invention;
fig. 2 is a circuit diagram of the infrared transmitting and receiving circuit of the present invention.
Detailed Description
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be connected or detachably connected or integrated; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
As shown in fig. 1-2, a charge protection circuit for connecting an external power source and a charging device includes:
the power supply management circuit is connected with an external power supply and used for providing electric energy for the charging equipment;
the charging port is used for being connected with charging equipment to form a charging loop;
the switch circuit is positioned between the power management circuit and the charging port and used for controlling the connection and disconnection of the charging end and the power management circuit;
the switching circuit is provided with an infrared transmitting and receiving circuit and is used for detecting whether the charging equipment is connected with the switching circuit or not and controlling the switching circuit. Can monitor the position state of flashlight through infrared transmitting and receiving circuit to control switching on and ending of the circuit in the charging seat, need not to install complex part on the flashlight again, when having reduced the assembly requirement, improved the flashlight of different models and the suitability of charging seat. When the flashlight is placed at the designated position of the charging seat, the power management circuit is connected with the charging port to charge the flashlight.
In this embodiment, the switch circuit includes a power management chip U2, an infrared emission receiving circuit, an MOS transistor Q1, and a triode Q2;
the power management chip U2 and the infrared transmitting and receiving circuit are connected with a power supply port of the power management circuit;
the source electrode of the MOS tube Q1 is connected with a power management circuit, the drain electrode of the MOS tube Q1 is connected with a charging port, and the grid electrode of the MOS tube Q1 is connected with the collector electrode of the triode Q2;
the emitter of the triode Q2 is grounded, and the base of the triode Q2 is connected with the level output pin of the power management chip U2;
the infrared transmitting and receiving circuit is connected with an input pin of a power management chip U2;
the power management chip U2 is used for controlling a transistor Q2 according to feedback of the infrared transmitting and receiving circuit, the transistor Q2 is used for controlling a MOS tube Q1, and the MOS tube Q1 is used for controlling the on and off of the power management circuit and the charging port. The power management circuit and the charging port loop are switched on and off by a MOS tube Q1, a triode Q2 is of an N type, and a triode Q2 controls the switching on and off of the MOS. The triode Q2 is controlled by a level output pin of the power management chip U2, the level output pin outputs high level, the MOS is conducted for charging, and the level output pin outputs a low level MOS tube Q1 which is disconnected to achieve the effect of a protection seat charging port.
In this embodiment, the infrared transmitting and receiving circuit includes an infrared transmitting tube and an infrared receiving tube;
the infrared transmitting tube and the infrared receiving tube are respectively connected with a power supply port of the power management circuit and are connected in parallel to form a loop;
and a fulcrum arranged between the infrared receiving tube and the power supply port of the power management circuit is connected with an input pin of the power management chip U2. Infrared emission pipe and infrared receiver tube are adjacent to be set up, the charging seat is under the state of circular telegram, infrared emission pipe continuous work, when the flashlight leaves the charging seat, because of lacking the plane of reflection, infrared ray can not be received to infrared receiver tube, when the flashlight is located the charging seat, infrared ray that infrared emission pipe jetted out passes through the surperficial reflection to infrared receiver tube of flashlight, thereby circuit in the control charging seat of production signal of telecommunication switches on and charges, the position that realizes the flashlight promptly through the folk prescription of charging seat detects, the cost is lower, simple to operate.
In this embodiment, the power management circuit includes a power management chip U1, a first indicator light and a second indicator light;
the first indicator light is connected with a charging output indicator pin of the power management chip U1, and the second indicator light is connected with a charging completion indicator pin of the power management chip U1. The first indicator light is red, the second indicator light is green, and whether the charging seat works normally and the flashlight is full of can be judged through the first indicator light and the second indicator light.
In this embodiment, the power management chip is an AP5056 in a U1 model.
A charging seat comprises a shell and the charging protection circuit, wherein the shell is provided with a window corresponding to an infrared transmitting and receiving circuit.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A charge protection circuit for connecting an external power source and a charging device, comprising:
the power supply management circuit is connected with an external power supply and used for providing electric energy for the charging equipment;
the charging port is used for being connected with charging equipment to form a charging loop;
the switch circuit is positioned between the power management circuit and the charging port and used for controlling the connection and disconnection of the charging end and the power management circuit;
the switching circuit is provided with an infrared transmitting and receiving circuit and is used for detecting whether the charging equipment is connected with the switching circuit or not and controlling the switching circuit.
2. The charging protection circuit of claim 1, wherein the switching circuit comprises a control chip, an infrared transmitting and receiving circuit, a MOS (metal oxide semiconductor) tube and a triode;
the control chip and the infrared transmitting and receiving circuit are connected with a power supply port of the power management circuit;
the source electrode of the MOS tube is connected with the power management circuit, the drain electrode of the MOS tube is connected with the charging port, and the grid electrode of the MOS tube is connected with the collector electrode of the triode;
the emitting electrode of the triode is grounded, and the base electrode of the triode is connected with the level output pin of the control chip;
the infrared transmitting and receiving circuit is connected with an input pin of the control chip;
the control chip is used for controlling the triode according to feedback of the infrared transmitting and receiving circuit, the triode is used for controlling the MOS tube, and the MOS tube is used for controlling the conduction and the cut-off of the power management circuit and the charging port.
3. The charging protection circuit of claim 2, wherein the infrared transmitting and receiving circuit comprises an infrared transmitting tube and an infrared receiving tube;
the infrared transmitting tube and the infrared receiving tube are respectively connected with a power supply port of the power management circuit and are connected in parallel to form a loop;
and a fulcrum arranged between the infrared receiving tube and the power supply port of the power management circuit is connected with an input pin of the control chip.
4. The charge protection circuit of claim 1, wherein the power management circuit comprises a power management chip, a first indicator light, and a second indicator light;
the first indicator light is connected with a charging output indicator pin of the power management chip, and the second indicator light is connected with a charging completion indicator pin of the power management chip.
5. The charging protection circuit of claim 4, wherein the power management chip model is AP 5056.
6. A charging socket, comprising a housing and the charging protection circuit of any one of claims 1 to 5, wherein the housing is provided with a window corresponding to the infrared transmitting and receiving circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121631386.8U CN216056369U (en) | 2021-07-19 | 2021-07-19 | Charging protection circuit and charging seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121631386.8U CN216056369U (en) | 2021-07-19 | 2021-07-19 | Charging protection circuit and charging seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216056369U true CN216056369U (en) | 2022-03-15 |
Family
ID=80617654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121631386.8U Active CN216056369U (en) | 2021-07-19 | 2021-07-19 | Charging protection circuit and charging seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216056369U (en) |
-
2021
- 2021-07-19 CN CN202121631386.8U patent/CN216056369U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205335915U (en) | Intelligence automatic charging device that docks of robot that sweeps floor | |
| KR101876106B1 (en) | Apparatus having interface | |
| CN216056369U (en) | Charging protection circuit and charging seat | |
| CN208754032U (en) | Charging equipment and its charging module | |
| CN214704618U (en) | Serial port communication multiplexing circuit | |
| CN104427686A (en) | Lamp and control circuit thereof | |
| CN101772238B (en) | Light source drive circuit | |
| CN211959610U (en) | Wireless switch | |
| CN213152427U (en) | Wireless control's multi-functional headlight circuit | |
| CN217279522U (en) | Wireless mouse for computer with infrared remote control function | |
| CN208723930U (en) | A kind of wireless bridge with laser positioning function | |
| CN212628503U (en) | Mobile lighting equipment combining flashlight and desk lamp holder | |
| CN220820839U (en) | Non-contact type debugging device and photovoltaic tracker | |
| CN209982785U (en) | LED indicator lamp on power socket | |
| CN215267748U (en) | Solar street lamp circuit | |
| CN103957677A (en) | Slide rail capable of automatic recognition and pairing, server with slide rail and server equipment cabinet with slide rail | |
| CN214315226U (en) | Touch button switch | |
| CN212723995U (en) | Computer software testing arrangement | |
| CN216056359U (en) | Short-circuit protection and communication circuit for charging port of lighting equipment | |
| CN210319732U (en) | LED garden lamp | |
| CN214895462U (en) | Near-infrared bidirectional communication circuit adopting single infrared transmitting tube | |
| CN204948474U (en) | A kind of LED control device of wireless | |
| CN216345922U (en) | Little night-light is used to dormitory | |
| CN220069461U (en) | Heating kettle | |
| CN220043378U (en) | Photovoltaic tile detection circuit and device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: Building 2, Cuiheng International Science and Technology Innovation Center, No. 21 Beichen Road, Cuiheng New District, Zhongshan City, Guangdong Province, 528400, 604 Patentee after: Aolei Technology Group Co.,Ltd. Country or region after: China Address before: Room 527, Unit 1, Building 2, Qian'an Garden, No. 18 Cuicheng Road, Cuiheng New District, Nanlang Street, Zhongshan City, Guangdong Province, 528400 Patentee before: Zhongshan Aolei Technology Co.,Ltd. Country or region before: China Address after: Room 527, Unit 1, Building 2, Qian'an Garden, No. 18 Cuicheng Road, Cuiheng New District, Nanlang Street, Zhongshan City, Guangdong Province, 528400 Patentee after: Zhongshan Aolei Technology Co.,Ltd. Country or region after: China Address before: 518000 A2 fifth floor, Fuhai information port, Qiaotou community, Fuhai street, Shenzhen, Guangdong, Baoan District Patentee before: Shenzhen Olight E-Commerce Technology Co.,Ltd. Country or region before: China |