CN210270085U - Switch cover detection device - Google Patents
Switch cover detection device Download PDFInfo
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- CN210270085U CN210270085U CN201920800962.3U CN201920800962U CN210270085U CN 210270085 U CN210270085 U CN 210270085U CN 201920800962 U CN201920800962 U CN 201920800962U CN 210270085 U CN210270085 U CN 210270085U
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Abstract
The utility model relates to a switch lid detection device for the earphone box that charges, earphone charge the box and include casing and lid down, switch lid detection device includes: a metal rotation shaft disposed between the lower case and the cover body, and having an insulation portion formed on an outer circumference of a first portion thereof; a master controller; the first conductive piece and the second conductive piece are used for connecting the metal rotating shaft, the first conductive piece is in conductive contact with the metal rotating shaft to form a first circuit, the second conductive piece is in contact with the first part to form a control switch, and when the cover body is opened and closed, the second conductive piece is in switching contact with the conductive part and the insulating part of the first part; the detection circuit is connected with the main controller, and the first line and the control switch are both connected in the detection circuit; when the cover body is opened to a certain angle or closed, the main controller detects the level signal change output by the detection circuit. The utility model is used for promote switch cover and detect reliability.
Description
Technical Field
The utility model relates to an earphone box technical field that charges, concretely relates to switch cover detection device.
Background
The bluetooth headset needs to communicate or charge with the wearable charging box, and realizes corresponding behavior recognition by using the state of the switch cover of the charging box. For example, after the cover is opened, the earphone is automatically connected back to the bluetooth device (such as a mobile phone) connected last time; if the earphone with the communication function and the charging box are opened, the electric quantity of the charging box is displayed by using an indicator lamp on the charging box, and the electric quantity of the earphone stored in the charging box is displayed after the cover is closed; the pogo pin (namely, the probe connector) for charging of the charging box after the cover is opened has no voltage output, and the voltage output exists after the cover is closed, so that the danger caused by charging short circuit due to the invasion of metal foreign matters is prevented. Therefore, in the matching use of the Bluetooth headset and the charging box, the state of the switch cover of the charging box can be frequently detected.
In the design that current earphone charging cassette tape has switch lid to detect the function, adopt hall components and parts to discern the detection mostly, set up hall sensor in the box bottom that charges, and be provided with magnet on the box top cover that charges, when closing the lid, hall sensor detects the magnetic field intensity of magnet, when magnetic field intensity reaches a definite value, hall sensor output shows the signal that charges the box and close the lid, and when uncapping, hall sensor can not detect the magnetic field intensity that magnet produced, think this moment uncapping. When the charging box is uncovered and a user holds the magnet to be close to the Hall sensor, the Hall sensor can still output a signal indicating that the charging box is closed after detecting that the magnetic field intensity reaches a certain value, so that misdetection is caused, and the reliability of detection of the opening and closing cover is reduced.
SUMMERY OF THE UTILITY MODEL
The utility model provides a switch cover detection device for the switch cover that solves current earphone charging box detects the problem that has the false retrieval, promotes switch cover detection reliability.
In order to solve the technical problem, the utility model provides a following technical scheme solves:
the utility model provides a switch lid detection device for earphone charging box, earphone charging box includes casing down and can set up with opening and shutting the lid in casing top down, its characterized in that, switch lid detection device includes: a metal rotation shaft disposed between the lower case and the cover body, and having an insulation portion formed on an outer circumference of a first portion thereof; a master controller; a first conductive member and a second conductive member for connecting the metal rotation shaft, the first conductive member being in conductive contact with the metal rotation shaft to form a first line, the second conductive member being in contact with the first portion to form a control switch, the second conductive member being in switching contact with the conductive portion and the insulating portion of the first portion when the lid body is opened and closed; the detection circuit is connected with the main controller, and the first line and the control switch are connected in the detection circuit; when the cover body is opened to a certain angle or closed, the main controller detects the level signal change output by the detection circuit.
The switch cover detecting device as described above, as an example of the installation of the metal rotation shaft, the metal rotation shaft is installed at one side end of the cover body, and the first conductive member and the second conductive member are installed at one side end of the top of the lower case.
As another embodiment of the installation of the metal rotating shaft, the metal rotating shaft is installed at one side end of the top of the lower casing, and the first conductive member and the second conductive member are installed at one side end of the cover body.
In order to ensure that the detection circuit can be kept on during the rotation process of the metal rotating shaft, the switch cover detection device comprises a first conductive member and a second conductive member, wherein the first conductive member comprises a first insulating member and a first metal member arranged on the first insulating member, and the first conductive member is enabled to conduct electricity through the first metal member; and/or the second conductive piece comprises a second insulating piece and a second metal piece arranged on the second insulating piece, so that the second conductive piece conducts electricity through the second metal piece.
In order to ensure that the detection circuit does not work to reduce the electric energy loss after the charging box is closed, when the cover body is opened to a certain angle, the second conductive piece is switched from being in contact with the insulating part of the first part to being in conductive contact with the conductive part of the first part; and when the cover body is closed, the second conductive piece is switched from conductive contact with the conductive part of the first part to contact with the insulating part of the first part.
According to the cover opening and closing detection device, when the cover body is opened to a certain angle, the detection circuit outputs the second level and switches to output the first level; when the cover body is closed, the detection circuit outputs the first level and switches to output the second level.
In the above-described open/close cover detecting apparatus, the first level is a high level, and the second level is a low level.
As an embodiment of the detection circuit, the detection circuit includes a pull-down resistor, the control switch and a pull-up resistor, the control switch is connected between the pull-up resistor and the pull-down resistor, and the detection terminal of the master controller is connected between the pull-down resistor and the control switch.
Compared with the prior art, the utility model discloses a switch cover detection device's advantage and beneficial effect are: the metal rotating shaft adopts a sectional type conduction design, in the process of opening and closing the cover of the charging box, the metal rotating shaft is in switching contact with the conductive part and the insulating part of the first part of the second conductive piece, so that a control switch formed by the contact of the second conductive piece and the first part of the metal rotating shaft is in a switching state of connection and disconnection, the detection circuit outputs level signals to the main controller according to the switching state of the control switch, the main controller realizes the detection of the opening and closing cover of the cover body according to the level signals, and the detection is reliable and high in accuracy; and the hardware structure (namely the metal rotating shaft) of the charging box is used as a part of the switch cover detection device, so that the production cost is effectively reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments of the present invention or the description of the prior art will be briefly described below, and it is obvious that the drawings described below are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an embodiment of the switch cover detection device of the present invention;
fig. 2 is a circuit diagram of an embodiment of a detection circuit in an embodiment of the switch cover detection apparatus of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In order to solve the problem that the charging box of the earphone in the prior art erroneously detects the state of the switch cover through the hall sensor, referring to fig. 1, the present embodiment provides a switch cover detection device for the charging box of the earphone, the charging box of the earphone includes a lower housing 2 and a cover 1 openably and closably disposed above the lower housing 2, and the cover 1 is rotatable to open or close with respect to the lower housing 1. A metal rotating shaft 3 is disposed between the cover 1 and the lower housing 2, and a first conductive member 4 and a second conductive member 5 are used to connect the metal rotating shaft 3, so that the metal rotating shaft 3 rotates relatively to the first conductive member 4 and the second conductive member 5. The metal rotating shaft 3 adopts a sectional type conduction design, in the process of opening and closing the cover of the charging box, the metal rotating shaft 3 is in switching contact with the conductive part and the insulating part of the first part of the second conductive piece 5, a control switch formed by the contact of the second conductive piece 4 and the first part of the metal rotating shaft 3 is in a conduction and non-conduction switching state, according to the switching state of the control switch, the detection circuit 7 outputs level signals to the main controller 6, and the main controller 6 realizes the reliability detection of opening or closing the cover of the cover body 1 according to the level signals.
Specifically, in the present embodiment, the metal rotating shaft 3 is installed in two ways: the first method comprises the following steps: the metal shaft 3 can be installed at one side end of the cover body 1, that is, the metal shaft 3 rotates with the opening and closing of the cover body 1, at this time, the first conductive member 4 and the second conductive member 5 are fixed at one side end of the top of the lower shell 2, for example, by hot melting, screwing or ultrasonic welding, etc., the first conductive member 4 is always in contact with the metal shaft 3, and the periphery of the first part of the second conductive member 5 connected with the metal shaft 3 is formed with an insulating part 31, so that when the metal shaft 3 rotates with the opening and closing of the cover body 1, the second conductive member 5 is in contact with the conductive part of the first part of the metal shaft 3 or the insulating part 31 of the first part of the metal shaft 3; and the second method comprises the following steps: the metal shaft 3 can be installed at one side end of the top of the lower housing 2, that is, the metal shaft 3 is fixed relative to the lower housing 2. At this time, the first conductive member 4 and the second conductive member 5 are fixed at one side end of the cover body 1 by, for example, hot melting, screwing, ultrasonic welding, or the like, the first conductive member 4 is always in contact with the metal rotating shaft 3, and an insulating portion 31 is formed on the periphery of the first portion of the second conductive member 5 connected with the metal rotating shaft 3, so that when the first conductive member 4 and the second conductive member 5 rotate along with the opening and closing of the cover body 1, the second conductive member 5 is in contact with the conductive portion of the first portion of the metal rotating shaft 3 or the insulating portion 31 of the first portion of the metal rotating shaft 3. No matter which of the above two mounting methods the metal rotating shaft 3 is mounted, the purpose is that when the cover 1 is opened or closed, the metal rotating shaft 3 rotates relative to the first conductive member 4 and the second conductive member, and the detection process and principle are the same, so for the sake of brief description, in the present embodiment, the metal rotating shaft 3 is mounted in the first mounting method as an example, and the specific detection process is described as follows.
With continued reference to fig. 1, in the present embodiment, an insulating portion 31 is formed on a portion of the outer periphery of the first end of the metal rotating shaft 3, and a conductive portion is still formed on the other portion of the outer periphery of the first end, so that the second conductive member 5 can switch to contact the insulating portion 31 and the conductive portion when the metal rotating shaft 3 rotates, and the second end of the metal rotating shaft 3 is not insulated, so that the first conductive member 4 is always in conductive contact with the metal rotating shaft 3 when the metal rotating shaft 3 rotates. When the cover body 1 rotates to drive the metal rotating shaft 3 to rotate together, the first conductive piece 4 is in conductive contact with the metal rotating shaft 3 all the time to form a first circuit; the metal rotation shaft 3 contacts the second conductive member 5 to form a control switch, which is turned off when the second conductive member 5 contacts the insulating portion 31 and turned on when the second conductive member 5 contacts other conductive portions than the insulating portion 31. And, referring to fig. 1, the first line and the control switch are connected in the detection circuit, the detection circuit 7 outputs a first level signal when the control switch is turned on, and the detection circuit 7 outputs a second level signal when the control switch is turned off, so that the switch cover detection of the cover body 1 can be converted into the electric signal change detection by turning on or off the control switch,
for example, the cover opening angle θ of the cover 1 is designed, when the cover opening angle of the cover 1 does not reach θ, the second conductive member 5 contacts the insulating portion 31 at the first end of the metal rotating shaft 3, i.e., the control switch is turned off, the detection circuit 7 outputs the second level signal, and when the cover opening angle of the cover 1 reaches θ, the second conductive member 5 contacts the conductive portion at the first end of the metal rotating shaft 3, i.e., the control switch is turned on, and the level output by the detection circuit 7 changes from the second level signal to the first level signal. The output end of the detection circuit 7 is connected to the detection end DET of the main controller 6, and is used for indicating that the cover body 1 is opened when the main controller 6 detects a level change (for example, a change from a second level signal to a first level signal) output by the detection circuit 7. The master controller detects that the level output from the detection circuit 7 changes from the first level signal to the second level signal, indicating that the lid body 1 is closing. Alternatively, for example, the cover opening angle θ of the cover 1 is designed, when the cover opening angle of the cover 1 does not reach θ, the second conductive member 5 contacts with the conductive portion at the first end of the metal rotating shaft 3, that is, the control switch is turned on, the detection circuit 7 outputs the first level signal, and when the cover opening angle of the cover 1 reaches θ, the second conductive member 5 contacts with the insulating portion 31 at the first end of the metal rotating shaft 3, that is, the control switch is turned off, and the level output by the detection circuit 7 changes from the first level signal to the second level signal. The output end of the detection circuit 7 is connected to the detection end DET of the main controller 6, and is used for indicating that the cover body 1 is opened when the main controller 6 detects a level change (for example, a change from a first level signal to a second level signal) output by the detection circuit 7. When the master controller detects that the level output from the detection circuit 7 changes from the second level signal to the first level signal, it indicates that the lid body 1 is closing. Whether to select whether the first level signal is changed to the second level signal to indicate that the lid 1 is opened or to select whether the second level signal is changed to the first level signal to indicate that the lid 1 is opened may be determined according to design.
In order to save power consumption, the first level output from the detection circuit 7 is high when the lid opening angle of the lid body 1 reaches θ, and the second level output from the detection circuit 7 is low when the lid opening angle of the lid body 1 does not reach θ.
In this embodiment, the first conductive member 4 may include a first insulating member and a first metal member disposed on the first insulating member to ensure that the first conductive member 4 can conduct electricity through the first metal member, and the second conductive member 5 may include a second insulating member and a second metal member disposed on the second insulating member to ensure that the second conductive member 4 can make conductive contact with the conductive portion of the first end of the metal rotating shaft 3 or make insulating contact with the insulating portion 31 of the first end through the second metal member.
Referring to fig. 2, an embodiment of the detection circuit 7 is shown, where the detection circuit 7 is a voltage divider circuit, the first line is connected to a certain portion of lines in the detection circuit 7, the control switch is denoted as S, the voltage divider circuit includes a power source VCC, a pull-down resistor R1, a control switch S, and a pull-up resistor R2, the control switch S is connected between one end of the pull-up resistor R2 and one end of the pull-down resistor R1, the other end of the pull-up resistor R2 is connected to the power source VCC, and the other end of the pull-down resistor R1 is grounded. The detection terminal DET of the master controller 6 is connected between the pull-down resistor R1 and the control switch S.
If it is assumed that the selection of the second level signal to change to the first level signal indicates that the lid 1 is opened, the open/close lid detection will be described with reference to fig. 2. When the cover opening angle of the cover body 1 does not reach theta, the control switch S is switched off, the detection circuit 7 outputs a low level to the detection end DET of the main controller 6 due to the existence of the pull-down resistor R1, when the cover opening angle of the cover body 1 reaches theta, the control switch S is switched on, and the detection circuit 7 outputs a partial voltage (namely, a high level) of the pull-down resistor R1 to the detection end DET, so that when the main controller 6 detects a level signal change from the low level to the high level, the cover opening of the cover body 1 is indicated. Or, in an alternative embodiment, the detection end DET of the main controller 6 may be connected between the pull-up resistor R2 and the control switch S, so that when the lid opening angle of the lid 1 does not reach θ, the control switch S is turned off, the detection circuit 7 outputs a high level to the detection end DET of the main controller 6 due to the presence of the pull-up resistor R2, and when the lid opening angle of the lid 1 reaches θ, the control switch S is turned on, and the detection circuit 7 outputs a low level to the detection end DET due to the presence of the pull-down resistor R1.
In this embodiment, the metal shaft 3, the first conductive member 4 connected to the metal shaft 3, and the second conductive member 5 may be taken as an integral module, wherein the first conductive member 4 and the second conductive member 5 need to reserve a connector for connecting with the detection circuit 7, when in use, the metal shaft 3 is screwed onto one side end of the cover 1, and the first conductive member 4 and the second conductive member 5 are screwed onto one side end of the top of the lower housing 2, so as to facilitate replacement and maintenance of the integral module. Of course, it is also possible to screw, for example, the metal rotating shaft 3 to one side end of the top of the lower case 2, and screw, for example, the first conductive member 4 and the second conductive member 5 to one side end of the lid body 1, without limitation.
The switch cover detection device of the embodiment adopts a sectional type conduction design for the metal rotating shaft 3, in the process of switching the switch cover of the charging box, the metal rotating shaft 3 is in switching contact with a conductive part and an insulating part of a part of the second conductive piece 5, a control switch S formed by the contact of the second conductive piece 5 and the part of the metal rotating shaft 3 is in a switching state of connection and disconnection, according to the switching state of the control switch S, the detection circuit 7 outputs level signal change to the main controller 6, the main controller 6 realizes the cover opening or cover closing detection of the cover body 1 according to the level signal change, the detection is reliable, and the accuracy is high. In addition, the switch cover detection device of the embodiment utilizes the hardware structure (namely, the metal rotating shaft 3) of the charging box as a part of the switch cover detection device, so that the production cost is effectively reduced.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (8)
1. The utility model provides a switch lid detection device for earphone charging box, earphone charging box includes casing down and can set up with opening and shutting the lid in casing top down, its characterized in that, switch lid detection device includes:
a metal rotation shaft disposed between the lower case and the cover body, and having an insulation portion formed on an outer circumference of a first portion thereof;
a master controller;
a first conductive member and a second conductive member for connecting the metal rotation shaft, the first conductive member being in conductive contact with the metal rotation shaft to form a first line, the second conductive member being in contact with the first portion to form a control switch, the second conductive member being in switching contact with the conductive portion and the insulating portion of the first portion when the lid body is opened and closed;
the detection circuit is connected with the main controller, and the first line and the control switch are connected in the detection circuit; when the cover body is opened to a certain angle or closed, the main controller detects the level signal change output by the detection circuit.
2. The apparatus of claim 1, wherein the metal shaft is installed at one side end of the cover body, and the first and second conductive members are installed at one side end of the top of the lower case.
3. The apparatus as claimed in claim 1, wherein the metal shaft is installed at one side end of the top of the lower housing, and the first and second conductive members are installed at one side end of the cover.
4. The switch cover detecting device according to any one of claims 1 to 3, wherein the first conductive member includes a first insulating member and a first metal member provided on the first insulating member, the first conductive member being made conductive by the first metal member; and/or the second conductive piece comprises a second insulating piece and a second metal piece arranged on the second insulating piece, so that the second conductive piece conducts electricity through the second metal piece.
5. The opening/closing cover detecting device according to any one of claims 1 to 3, wherein the second conductive member is switched from being in contact with the insulating portion of the first portion to being in conductive contact with the conductive portion of the first portion when the cover body is opened to a certain angle; and when the cover body is closed, the second conductive piece is switched from conductive contact with the conductive part of the first part to contact with the insulating part of the first part.
6. The apparatus according to claim 5, wherein the detection circuit outputs the second level to switch to output the first level when the cover body is opened to a certain angle; when the cover body is closed, the detection circuit outputs the first level and switches to output the second level.
7. The apparatus according to claim 6, wherein the first level is a high level and the second level is a low level.
8. The apparatus of any one of claims 1 to 3, wherein the detection circuit comprises a pull-down resistor, the control switch and a pull-up resistor, the control switch is connected between the pull-up resistor and the pull-down resistor, and the detection terminal of the master controller is connected between the pull-down resistor and the control switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920800962.3U CN210270085U (en) | 2019-05-30 | 2019-05-30 | Switch cover detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920800962.3U CN210270085U (en) | 2019-05-30 | 2019-05-30 | Switch cover detection device |
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| Publication Number | Publication Date |
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| CN210270085U true CN210270085U (en) | 2020-04-07 |
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| CN201920800962.3U Active CN210270085U (en) | 2019-05-30 | 2019-05-30 | Switch cover detection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112305282A (en) * | 2020-10-10 | 2021-02-02 | 浙江晨泰科技股份有限公司 | Ammeter with uncap and detect |
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2019
- 2019-05-30 CN CN201920800962.3U patent/CN210270085U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112305282A (en) * | 2020-10-10 | 2021-02-02 | 浙江晨泰科技股份有限公司 | Ammeter with uncap and detect |
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