CN209844595U - Adapter recognition device and breast pump - Google Patents
Adapter recognition device and breast pump Download PDFInfo
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- CN209844595U CN209844595U CN201920795874.9U CN201920795874U CN209844595U CN 209844595 U CN209844595 U CN 209844595U CN 201920795874 U CN201920795874 U CN 201920795874U CN 209844595 U CN209844595 U CN 209844595U
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Abstract
The utility model is suitable for an electron technical field provides an adapter recognition device and breast pump, and the device includes: the charging control circuit is connected with the MCU and is used for controlling the capacitor to be charged according to a control instruction of the MCU; the MCU is connected with the charging control circuit and the adapter and is used for detecting charging voltage and charging time, and if the charging time used when the capacitor is charged to the preset voltage is the preset time, the adapter is judged to be the adapter matched with the electronic product; and one end of the capacitor is connected to the connecting line of the charging control circuit and the MCU, and the other end of the capacitor is grounded. The utility model discloses a charging control circuit control electric capacity charges, carries out charging voltage and charging time's detection, and then recognizes whether the adapter that is connected with the electronic product at present is suitable for to charge for this electronic product, has solved the matching identification problem of electronic product and adapter, has avoided the user to use unmatched adapter and has caused product abnormity and user's use risk.
Description
Technical Field
The utility model belongs to the technical field of the electron, especially, relate to an adapter recognition device and breast pump.
Background
An adapter is an interface converter that may be a stand-alone hardware interface device that allows a hardware or electronic interface to be connected to other hardware or electronic interfaces, or may be an information interface. Such as: the power adapter, tripod base switching part, USB and serial ports's switching equipment etc.. At present, various electronic products (such as breast pumps) have a charging function, but due to the fact that various adapters are used for charging, users often mix non-original adapters when charging different electronic products, although interfaces of different adapters may have the same specification, input and output voltage/current ranges of different adapters and allowable voltage/current ranges of the electronic products are not necessarily completely the same, and if unmatched adapters are used, abnormal charging or abnormal use of the electronic products is easily caused. Therefore, in order to solve the problem of matching and identifying the electronic product and the adapter, a technical solution for effectively matching and identifying the electronic product and the adapter is needed in the art to avoid product abnormality and user use risk caused by the user using the unmatched adapter.
SUMMERY OF THE UTILITY MODEL
The utility model provides an adapter recognition device aims at solving the matching recognition problem of electronic product with the adapter, avoids the user to use unmatched adapter and causes the problem of product abnormity and user use risk.
The utility model discloses a realize like this, an adapter recognition device, include:
the charging control circuit is connected with the MCU and is used for controlling the capacitor to be charged according to a control instruction of the MCU;
the MCU is connected with the charging control circuit and the adapter and is used for detecting charging voltage and charging time, and if the charging time used when the capacitor is charged to the preset voltage is the preset time, the adapter is judged to be the adapter matched with the electronic product;
and one end of the capacitor is connected to the connecting line of the charging control circuit and the MCU, and the other end of the capacitor is grounded.
Still further, the charge control circuit includes: the circuit comprises a first resistor, a second resistor and a switching tube;
the grid electrode of the switch tube is connected with the MCU, the drain electrode of the switch tube is connected with one end of the first resistor, the other end of the first resistor is connected with the adapter, the source electrode of the switch tube is connected with the adapter, one end of the second resistor is connected to the switch tube and the connecting line of the MCU, and the second resistor is connected to the switch tube and the connecting line of the adapter.
Further, the charge control circuit is provided on the electronic product side or the adapter side.
Still further, the first resistor is replaced with a plurality of first resistors connected in parallel or in series.
Still further, the capacitance is replaced with a plurality of capacitances in parallel or in series.
Furthermore, when the charging control circuit is arranged on the side of the electronic product, pins in the adapter corresponding to the electronic product are respectively connected with a power supply pin and a grounding pin.
Furthermore, when the charging control circuit is arranged on the adapter side, the first resistor is connected with a power supply pin.
The utility model also provides a breast pump, include adapter recognition device.
The embodiment of the utility model provides an adapter recognition device, because preset the required time of predetermineeing the required presetting of charging that the adapter that matches corresponds, charge through charging control circuit control electric capacity, carry out charging voltage and charging time's detection, and then discern whether the adapter that is connected with the electronic product at present is suitable for charging for this electronic product, solved the matching recognition problem of electronic product and adapter, avoided the user to use unmatched adapter and cause product abnormity and user's use risk.
Drawings
Fig. 1 is a block diagram of an adapter identification apparatus according to a first embodiment of the present invention;
fig. 2 is a circuit diagram of an adapter identification device according to a second embodiment of the present invention;
fig. 3 is a circuit diagram of an adapter identification device according to a third embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The embodiment of the utility model provides an adapter recognition device, which comprises a charging control circuit connected with a MCU (microprogrammed control unit) and used for controlling whether a capacitor is charged or not; the MCU is connected with the charging control circuit and the adapter and is used for controlling the charging control circuit and judging whether the charging time used when the capacitor is charged to the preset voltage is the preset time or not in the charging state of the capacitor, if so, the adapter is judged to be the adapter matched with the electronic product; and one end of the capacitor is connected to the connecting line of the charging control circuit and the MCU, and the other end of the capacitor is grounded. The preset time required for charging corresponding to the matched adapter is preset, the capacitor is controlled to be charged through the charging control circuit, the charging voltage and the charging time are detected, whether the adapter connected with the electronic product is suitable for charging the electronic product or not is identified, the problem of matching identification of the electronic product and the adapter is solved, and product abnormity and user use risks caused by the fact that a user uses the unmatched adapter are avoided.
Example one
An embodiment of the utility model provides an adapter recognition device, as shown in fig. 1, the device includes:
the charging control circuit 100 is connected with the MCU200 and is used for controlling the charging of the capacitor 300 according to a control instruction of the MCU 200;
the MCU200 connected to the charging control circuit 100 and the adaptor 400 is configured to perform charging voltage and charging time detection, and determine that the adaptor 400 is an adaptor that is matched with an electronic product if the charging time used when the capacitor 300 is charged to a preset voltage is a preset time;
and a capacitor 300 having one end connected to a connection line between the charge control circuit 100 and the MCU200 and the other end grounded.
The working principle of the adapter recognition device is as follows: the charging control circuit 100 controls whether the capacitor 300 is charged or not according to a control instruction of the MCU 200; when the capacitor 300 is controlled to be charged, the MCU200 starts to acquire the charging voltage and the charging time of the capacitor 300, if the charging time used when the capacitor 300 is charged to the preset voltage is the preset time, the current adapter 400 is an adapter matched with the electronic product connected thereto, the MCU controls the adapter 400 to start to charge the electronic product connected thereto, otherwise, the current adapter 400 is not matched, and the charging operation is prohibited.
In this embodiment, preset time required for charging corresponding to the matched adapter is preset, the charging control circuit controls the charging of the capacitor, the charging voltage and the charging time are detected, and then whether the adapter connected with the electronic product is suitable for charging the electronic product is identified, so that the problem of matching identification between the electronic product (such as a breast pump) and the adapter is solved, and product abnormality and user use risks caused by the fact that a user uses an unmatched adapter are avoided.
Example two
The embodiment of the utility model provides an adapter recognition device, as shown in fig. 2, charge control circuit 100 specifically includes first resistance R1, second resistance R3 and switch tube Q1;
the gate of the switching tube Q1 is connected with the MCU (U1), the drain of the switching tube Q1 is connected with one end of the first resistor R1, the other end of the first resistor R1 is connected with the adapter 400, the source of the switching tube Q1 is connected with the adapter 400, one end of the second resistor R3 is connected to the connection line between the switching tube Q1 and the MCU (U1), and the second resistor R3 is connected to the connection line between the switching tube Q1 and the adapter 400.
The first resistor R1 can be replaced by a plurality of first resistors connected in parallel or in series, and the capacitor C1 can also be replaced by a plurality of capacitors connected in parallel or in series.
In this embodiment, the switch Q1 selects an NMOS transistor, the adapter is a USB adapter, the charging control of the capacitor C1 is realized by turning on and off the switch Q1 in the charging control circuit, and the MCU calculates the charging time t0 required when the capacitor C1 reaches the preset voltage V0 during the charging process, thereby determining whether the connected USB adapter is an adapter that allows charging. Because the first resistor R1, the capacitor C1 and the preset voltage V0 required by the matched adapter may not be the same for different electronic products, the charging time t0 used when different capacitors are charged to the preset voltage can be obtained by changing the first resistor R1, the capacitor C1 or the preset voltage V0, and the adapter identification device is further suitable for identifying adapters of different electronic products. Through setting up different connected mode and the first resistance of different quantity or electric capacity C1, can realize adjusting the effect of the used charge time of electric capacity charge to preset voltage for adapter recognition device is applicable to the adapter discernment to different electronic product.
EXAMPLE III
The embodiment of the utility model provides an adapter recognition device, on the basis of embodiment two, charge control circuit 100 can set up in electronic product side or adapter side, realizes the discernment to the adapter.
When the charging control circuit 100 is disposed on the electronic product side, pins of the adapter 400 corresponding to the electronic product are connected to the power supply pin and the ground pin, respectively. As shown in fig. 2, hardware corresponding to pins 2 and 3 on the electronic product side in the adapter 400 is connected to the POWER supply pin (POWER _5V) and the ground pin (POWER _ GND), the first resistor R1 is connected to pin 2 on the electronic product side, and the source of the switching tube Q1 and the second resistor R3 are both connected to pin 3 on the electronic product side. The 20 pins of the MCU are connected with the 1 pin on the side of the electronic product.
When the charging control circuit 100 is disposed on the adapter 400 side, the first resistor R1 is connected to a power supply pin or other power supply terminal of a different power supply. As shown in fig. 3, the first resistor R1 may be connected to a POWER supply pin (POWER _5V) on the side of the adapter 400, and it should be noted that it may also be connected to POWER supply terminals of other different POWER sources on the side of the adapter 400, pin 20 of the MCU is connected to be directly connected to pin 1 on the side of the electronic product, pin 12 of the MCU is connected to be directly connected to pin 2 on the side of the electronic product, one end of the capacitor C1 is connected to a connection line of pin 2 on the side of the MCU and the electronic product, and the other end is grounded; the pin USB _ TEST of the MCU is directly connected to pin 3 on the electronic product side, the D-pole of the switching transistor Q1 is directly connected to pin 2 on the adapter 400 side, the G-pole of the switching transistor Q1 is directly connected to pin 3 on the adapter 400 side, and the S-pole of the switching transistor Q1 is directly connected to pin 4 on the adapter 400 side and ground.
After the electronic product is stably connected with the adapter, the USB _ TEST pin of the MCU sends out a control signal, the switch tube Q1 is turned off from conduction at the moment, the capacitor C1 starts to charge, the 12 pin (PB3 pin) of the MCU starts to detect and acquire the charging voltage and the charging time of the capacitor C1, and whether the charging time used when the capacitor C1 is charged to the preset voltage is the preset time or not is judged, if yes, the current adapter is a target adapter matched with the electronic product, the MCU controls the adapter to start to charge at the moment, and otherwise, the adapter is forbidden to charge.
Example four
An embodiment of the utility model provides a breast pump, a serial communication port, including the adapter recognition device of any one of above-mentioned embodiments.
In this embodiment, the breast pump is an electronic product, and after the adapter recognition device is included, the abnormal product and the use risk of the user caused by the use of the USB adapter that is not matched with the breast pump by the user are avoided.
The embodiment of the utility model provides an adapter recognition device and breast pump, preset the required time of predetermineeing charging that the adapter that matches corresponds, charge through charging control circuit control electric capacity, carry out charging voltage and charging time's detection, and then discern whether the adapter that is connected with the electronic product is suitable for charging for this electronic product at present, the matching identification problem of electronic product (like the breast pump) with the adapter has been solved, avoided the user to use unmatched adapter and cause product abnormity and user's use risk. The charging control circuit realizes the charging control of the capacitor through the on-off of the switching tube. The charging control circuit can be connected with an electronic product or an adapter, and the identification of the adapter can be realized. By replacing the first resistors with a plurality of first resistors connected in parallel or in series, or replacing the capacitors with a plurality of capacitors connected in parallel or in series, the function of adjusting the charging time used when the capacitors are charged to the preset voltage can be realized, and therefore the adapter recognition device can be suitable for recognizing adapters of different electronic products. The breast pump is an electronic product, and after the breast pump comprises the adapter recognition device, product abnormality and user use risks caused by the fact that a user uses the USB adapter which is not matched with the breast pump are avoided.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. An adapter identifying device, comprising:
the charging control circuit is connected with the MCU and is used for controlling the capacitor to be charged according to a control instruction of the MCU;
the MCU is connected with the charging control circuit and the adapter and is used for detecting charging voltage and charging time, and if the charging time used when the capacitor is charged to the preset voltage is the preset time, the adapter is judged to be the adapter matched with the electronic product;
and one end of the capacitor is connected to the connecting line of the charging control circuit and the MCU, and the other end of the capacitor is grounded.
2. The adapter identification device of claim 1, wherein the charge control circuit comprises: the circuit comprises a first resistor, a second resistor and a switching tube;
the grid electrode of the switch tube is connected with the MCU, the drain electrode of the switch tube is connected with one end of the first resistor, the other end of the first resistor is connected with the adapter, the source electrode of the switch tube is connected with the adapter, one end of the second resistor is connected to the switch tube and the connecting line of the MCU, and the second resistor is connected to the switch tube and the connecting line of the adapter.
3. The adapter identifying device according to claim 2, wherein the charge control circuit is provided on an electronic product side or the adapter side.
4. The adapter identifying device of claim 2, wherein the first resistance is replaced with a plurality of first resistances in parallel or in series.
5. The adapter identification device of claim 1 wherein said capacitance is replaced with a plurality of capacitances in parallel or in series.
6. The adapter identifying device according to claim 3, wherein when the charge control circuit is provided on an electronic product side, pins of the adapter corresponding to the electronic product are connected to a power supply pin and a ground pin, respectively.
7. The adapter identification device of claim 3 wherein said first resistor is connected to a power supply pin when said charge control circuit is disposed on said adapter side.
8. A breast pump comprising an adapter identification device as claimed in any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920795874.9U CN209844595U (en) | 2019-05-29 | 2019-05-29 | Adapter recognition device and breast pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920795874.9U CN209844595U (en) | 2019-05-29 | 2019-05-29 | Adapter recognition device and breast pump |
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| Publication Number | Publication Date |
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| CN209844595U true CN209844595U (en) | 2019-12-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920795874.9U Active CN209844595U (en) | 2019-05-29 | 2019-05-29 | Adapter recognition device and breast pump |
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| CN (1) | CN209844595U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114073442A (en) * | 2020-08-21 | 2022-02-22 | 北京石头世纪科技股份有限公司 | Dust collector and working mode selection method thereof |
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2019
- 2019-05-29 CN CN201920795874.9U patent/CN209844595U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114073442A (en) * | 2020-08-21 | 2022-02-22 | 北京石头世纪科技股份有限公司 | Dust collector and working mode selection method thereof |
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