Electronic atomization equipment and battery voltage measuring system
By adding circuit components such as voltage detection switch circuits to the charging interface of the electronic atomization device, the limitations and narrow application scope of battery voltage detection methods in the prior art are solved, and the battery voltage of the equipment is quickly and accurately detected without relying on the serial port function, and the effectiveness of the charging protocol is maintained.
Patent Information
- Application Number
- CN202420578529.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-22
- Publication Date
- 2025-04-18
- Estimated Expiration
- 2034-03-22
AI Technical Summary
In the prior art, the battery voltage detection method of finished equipment has high limitations and a narrow range of application. It is impossible to obtain battery parameters when the internal circuit of the equipment does not have the serial port function.
A battery voltage detection system for electronic atomization equipment is designed. By adding a voltage detection switch circuit, a charging switch circuit and a charging resistor unit to the charging interface, the battery voltage inside the device is detected without the need to use the device's serial port function.
In the whole machine state, the battery voltage of the equipment is easily and quickly detected without affecting the original charging protocol function, which improves the convenience and applicability of battery voltage detection.
Smart Images
Figure CN222774645U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of voltage detection, and in particular to an electronic atomization device and a battery voltage measurement system. Background Art
[0002] After a portable electronic device such as an electronic atomizer is assembled into a finished product, if you want to obtain the current battery voltage of the electronic device in real time, you usually use the analog-to-digital converter (ADC) provided by the internal circuit main control module to detect the current battery voltage of the device, and then send the relevant data to the connected terminal such as a computer through the serial port. However, this method requires the internal circuit of the device to have a serial port function. If the internal circuit does not have a serial port function, the battery parameters cannot be obtained through the serial port. Therefore, the battery voltage detection method for finished devices in the relevant technology has high limitations and a narrow scope of application. Utility Model Content
[0003] The utility model provides an electronic atomization device and a battery voltage measurement system, aiming to solve the problem that the battery voltage detection method of the finished device in the related technology is highly limited and has a narrow application range.
[0004] In order to solve the above-mentioned technical problems, the first aspect of the utility model provides an electronic atomization device, including: a battery, a charging interface and a battery voltage detection circuit, the battery voltage detection circuit including a voltage detection switch circuit, a charging switch circuit and a charging resistor unit; the voltage detection switch circuit is electrically connected to the first end of the charging resistor unit, the power supply end of the charging interface and the battery, respectively, the charging switch circuit is electrically connected to the first end of the charging resistor unit and the power supply end of the charging interface, respectively, the second end of the charging resistor unit is electrically connected to the communication channel end of the charging interface, and the common connection end of the charging interface and the charging resistor unit is used to be electrically connected to an external voltage detection device.
[0005] Further, the voltage detection switch circuit includes a first switch tube, a second switch tube, a first resistor and a second resistor; the first ends of the first switch tube and the second switch tube are both electrically connected to the power end of the charging interface, the second ends of the first switch tube and the second switch tube are both electrically connected to one end of the charging resistor unit, the third ends of the first switch tube and the second switch tube are both electrically connected to the positive pole of the battery, the negative pole of the battery is grounded, one end of the first resistor is electrically connected to the first end of the first switch tube, one end of the second resistor is electrically connected to the first end of the second switch tube, and the other ends of the first resistor and the second resistor are both grounded.
[0006] Furthermore, the first switch tube and the second switch tube are both PMOS tubes.
[0007] Furthermore, the voltage detection switch circuit also includes a third resistor and a fourth resistor; the third resistor is electrically connected between the power supply end of the charging interface and the first end of the first switch tube, and the fourth resistor is electrically connected between the power supply end of the charging interface and the first end of the second switch tube.
[0008] Furthermore, the charging resistor unit includes a first transmission resistor and a second transmission resistor, one end of the first transmission resistor is electrically connected to the first communication channel end of the charging interface, one end of the second transmission resistor is electrically connected to the second communication channel end of the charging interface, and the other ends of the first transmission resistor and the second transmission resistor are electrically connected to the voltage detection switch circuit and the charging switch circuit, respectively.
[0009] Furthermore, the charging interface includes a USB Type-C interface.
[0010] Further, the charging switch circuit includes a third switch tube, a fourth switch tube, a fifth resistor and a sixth resistor, the first ends of the third switch tube and the fourth switch tube are electrically connected to the power end of the charging interface, the second end of the third switch tube is electrically connected to the other end of the first transmission resistor, the second end of the fourth switch tube is electrically connected to the other end of the second transmission resistor, the third ends of the third switch tube and the fourth switch tube are both grounded, one end of the fifth resistor is electrically connected to the first end of the third switch tube, one end of the sixth resistor is electrically connected to the first end of the fourth switch tube, and the other ends of the fifth resistor and the sixth resistor are both grounded.
[0011] Furthermore, the third switch tube and the fourth switch tube are both NMOS tubes.
[0012] Furthermore, the charging switch circuit also includes a seventh resistor and an eighth resistor; the seventh resistor is electrically connected between the power end of the charging interface and the first end of the third switch tube, and the eighth resistor is electrically connected between the power end of the charging interface and the first end of the fourth switch tube.
[0013] The second aspect of the utility model provides a battery voltage measurement system, including a voltage detection device and the electronic atomization device as described in the first aspect of the utility model; the voltage detection device includes a measurement adapter board and a multimeter, the first end and the second end of the measurement adapter board are respectively electrically connected to the communication channel end of the charging interface in the electronic atomization device, and the voltage detection end of the multimeter is electrically connected to the first end or the second end of the measurement adapter board.
[0014] From the above description, it can be seen that the utility model improves the internal circuit of the electronic atomization device. When the battery voltage of the electronic atomization device needs to be detected, it only needs to connect the voltage detection device to the charging interface of the device to complete the battery voltage detection. There is no need to use the serial port function of the device, and when the charging interface is connected to the charging line, the voltage detection switch circuit will enter the cut-off state, and the charging switch circuit and the charging resistor unit will enter the operating state, and the charging protocol function will be started. Therefore, it can ensure that the battery voltage of the device can be detected easily and quickly in the whole machine state without affecting the original charging protocol function, thereby effectively improving the convenience and applicability of battery voltage detection. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a structural schematic diagram of a battery voltage measurement system according to an embodiment of the utility model;
[0016] Figure 2 It is a structural schematic diagram of an electronic atomization device according to an embodiment of the utility model;
[0017] Figure 3 This is a schematic diagram of the internal circuit of an electronic atomization device according to an embodiment of the utility model;
[0018] Figure 4 This is a schematic diagram of the structure of a charging interface in an embodiment of the utility model;
[0019] Figure 5 This is a schematic diagram of the internal circuit of another electronic atomization device according to an embodiment of the present utility model. DETAILED DESCRIPTION
[0020] In order to make the purpose, technical scheme and advantages of the utility model clearer, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model. In addition, the technical features involved in the various embodiments of the utility model described below can be combined with each other as long as they do not conflict with each other.
[0021] In the related art, since there are problems that the battery voltage detection method of the finished device is highly limited and has a narrow application scope, an embodiment of the utility model provides a battery voltage measurement system.
[0022] like Figure 1This is a structural schematic diagram of a battery voltage measurement system of the present embodiment, which includes a voltage detection device 100 and an electronic atomization device 200; wherein, the voltage detection device 100 includes a measurement adapter board 110 and a multimeter 120, the measurement adapter board 110 is electrically connected to the communication channel end of the charging interface 210 in the electronic atomization device 200, and the voltage detection end of the multimeter 120 is electrically connected to the first end or the second end of the measurement adapter board 110.
[0023] like Figure 2 It is a structural schematic diagram of the above-mentioned electronic atomization device, and the electronic atomization device 200 includes: a battery 220, a charging interface 210 and a battery voltage detection circuit 230, and the battery voltage detection circuit 230 includes a voltage detection switch circuit 231, a charging switch circuit 232 and a charging resistor unit 233; the voltage detection switch circuit 231 is electrically connected to the first end of the charging resistor unit 233, the power supply end of the charging interface 210 and the battery 220 respectively, and the charging switch circuit 232 is electrically connected to the first end of the charging resistor unit 233 and the power supply end of the charging interface 210 respectively, and the second end of the charging resistor unit 233 is electrically connected to the communication channel end of the charging interface 210, and the common connection end of the charging interface 210 and the charging resistor unit 233 is used to be electrically connected to the external voltage detection device 100. Among them, the charging interface 210 includes a USB Type-C interface.
[0024] Specifically, this embodiment reuses the charging interface 210 on the electronic atomization device 200 to detect the voltage of the battery inside the device, improves the original circuit structure of the device, and adds a voltage detection switch circuit 231 to the original charging protocol circuit. The battery voltage detection circuit 230 obtained thereby directly connects the voltage detection device 100 to the charging interface 210 of the electronic atomization device 200 when it is necessary to detect the battery voltage of the device. At this time, the charging switch circuit 232 connected to the charging interface 210 enters the cut-off state, so that the charging resistor unit 233 and the charging switch circuit 232 are connected to the charging interface 210. The charging protocol function implemented by the switch circuit 232 is invalid, and the voltage detection switch circuit 231 enters the on state, and the external voltage detection device 100 can detect the voltage of the battery inside the device through the charging interface 210; when the device needs to be charged, that is, when the charging interface 210 of the device is connected to the charging line, at this time, the charging switch circuit 232 connected to the charging interface 210 enters the on state, so that the charging protocol function implemented by the charging resistor unit 233 and the charging switch circuit 232 is effective, and the voltage detection switch circuit 231 enters the off state, and the device can realize the charging function. Among them, the voltage detection device 100 of the battery voltage measurement system mainly includes a measurement adapter board and a multimeter 120, the measurement adapter board has a plug-in male head corresponding to the charging interface 210 of the device to be tested, such as a USB Type-C male head, the plug-in male head is connected to the communication channel end of the charging interface 210 of the device to be tested, so as to lead out the communication signal end inside the device, and the multimeter 120 is then connected to any communication channel end of the measurement adapter board to measure the voltage of the battery inside the device. Therefore, this embodiment reuses the charging interface 210 of the device without the serial port function of the device, and can realize battery voltage detection when the device is in the whole state, while not affecting the original charging protocol function of the device, thereby effectively improving the convenience and applicability of battery voltage measurement.
[0025] like Figure 3 This is a circuit schematic diagram of the above electronic atomization device, please refer to Figure 3 The voltage detection switch circuit 231 includes a first switch tube Q1, a second switch tube Q2, a first resistor R1 and a second resistor R2; the first ends of the first switch tube Q1 and the second switch tube Q2 are both electrically connected to the power supply end of the charging interface 210, the second ends of the first switch tube Q1 and the second switch tube Q2 are both electrically connected to one end of the charging resistor unit 233, the third ends of the first switch tube Q1 and the second switch tube Q2 are both electrically connected to the positive electrode of the battery V1, the negative electrode of the battery V1 is grounded, one end of the first resistor R1 is electrically connected to the first end of the first switch tube Q1, one end of the second resistor R2 is electrically connected to the first end of the second switch tube Q2, and the other ends of the first resistor R1 and the second resistor R2 are both grounded. Among them, the first switch tube Q1 and the second switch tube Q2 are both PMOS tubes.
[0026] The charging switch circuit 232 includes a third switch tube Q3, a fourth switch tube Q4, a fifth resistor R5, and a sixth resistor R6; the first ends of the third switch tube Q3 and the fourth switch tube Q4 are both electrically connected to the power supply end of the charging interface 210, the second end of the third switch tube Q3 is electrically connected to the other end of the first transmission resistor Rd1, the second end of the fourth switch tube Q4 is electrically connected to the other end of the second transmission resistor Rd2, the third ends of the third switch tube Q3 and the fourth switch tube Q4 are both grounded, one end of the fifth resistor R5 is electrically connected to the first end of the third switch tube Q3, one end of the sixth resistor R6 is electrically connected to the first end of the fourth switch tube Q4, and the other ends of the fifth resistor R5 and the sixth resistor R6 are both grounded. Among them, the third switch tube Q3 and the fourth switch tube Q4 are both NMOS tubes.
[0027] The charging resistor unit 233 includes a first transmission resistor Rd1 and a second transmission resistor Rd2. One end of the first transmission resistor Rd1 is electrically connected to the first communication channel end of the charging interface 210, and one end of the second transmission resistor Rd2 is electrically connected to the second communication channel end of the charging interface 210. The other ends of the first transmission resistor Rd1 and the second transmission resistor Rd2 are electrically connected to the voltage detection switch circuit 231 and the charging switch circuit 232, respectively.
[0028] Specifically, the voltage detection switch circuit 231 in this embodiment uses two PMOS tubes to realize the path control during voltage detection. When the charging interface 210 is not connected to the charging line (i.e. Figure 3 When the switch S1 in the charging interface 210 is disconnected) and the voltage detection device 100 is connected, the charging interface 210 is connected to a low-level signal through the multimeter 120, and the gate potential of the two PMOS tubes is pulled down by the pull-down resistor of the gate to make the two PMOS tubes enter the on state, and the battery voltage measurement path is effective. The charging switch circuit 232 uses a switch tube of the opposite type to the two switch tubes of the voltage detection switch circuit 231, that is, an NMOS tube. Therefore, when the charging interface 210 is not connected to the charging line, the gate potential of the NMOS tube is pulled down by the pull-down resistor of the gate to make the NMOS tube enter the cut-off state. At this time, the two transmission resistors are not connected to the ground line, and the charging protocol function implemented by the charging switch circuit 232 and the charging resistor unit 233 is invalid. The battery voltage inside the device is transmitted to the voltage detection device 100 through the first switch tube Q1 and the first transmission resistor Rd1, or transmitted to the voltage detection device 100 through the second switch tube Q2 and the second transmission resistor Rd2, thereby realizing the detection of the battery voltage. When the charging interface 210 is connected to the charging line (that is, Figure 3When the switch S1 in the charging interface is closed), the gates of the two PMOS tubes receive a high-level signal and enter the cut-off state, and the gates of the NMOS tubes receive a high-level signal and enter the on state. At this time, the two transmission resistors are connected to the ground line, and the charging protocol function implemented by the charging switch circuit 232 and the charging resistor unit 233 is effective, and the circuit enters the normal charging mode. It should also be noted that the first transmission resistor Rd1 and the second transmission resistor Rd2 are connected to the CC (Communication Channel) pin of the charging interface 210, for example Figure 4 The structural principle diagram of the charging interface 210 shown in FIG. Figure 4 The power supply terminal VBUS of the charging interface 210 corresponds to Figure 3 When performing battery voltage detection, the voltage detection device 100 only needs to connect to either of the two communication channel terminals CC, for example Figure 3 As shown, the voltage detection device 100 is connected to the CC1 terminal; the transmission resistor is used to implement the insertion detection and communication channel power negotiation functions in the USB Type-C connector. In this embodiment, the first transmission resistor Rd1 and the second transmission resistor Rd2 can be selected as resistors with a resistance value of 5.1KΩ.
[0029] like Figure 5 For another circuit schematic diagram of the above electronic atomization device, please refer to Figure 5 The voltage detection switch circuit 231 also includes a third resistor R3 and a fourth resistor R4; the third resistor R3 is electrically connected between the power end of the charging interface 210 and the first end of the first switch tube Q1, and the fourth resistor R4 is electrically connected between the power end of the charging interface 210 and the first end of the second switch tube Q2.
[0030] The charging switch circuit 232 further includes a seventh resistor R7 and an eighth resistor R8; the seventh resistor R7 is electrically connected between the power end of the charging interface 210 and the first end of the third switch tube Q3, and the eighth resistor R8 is electrically connected between the power end of the charging interface 210 and the first end of the fourth switch tube Q4.
[0031] Specifically, in this embodiment, in order to better ensure the stability and reliability of the circuit, current limiting resistors are connected to the gates of the two PMOS tubes and the two NMOS tubes; the current limiting resistors can adjust their resistance values to achieve the required current limiting effect. Among them, the resistance values of the third resistor R3, the fourth resistor R4, the seventh resistor R7 and the eighth resistor R8 in this embodiment can all be 1KΩ.
[0032] The battery voltage measurement system provided by the embodiment of the utility model improves the internal circuit of the electronic atomization device. When the battery voltage of the electronic atomization device needs to be detected, it only needs to connect the voltage detection device to the charging interface of the device to complete the battery voltage detection. There is no need to use the serial port function of the device. When the charging interface is connected to the charging line, the voltage detection switch circuit will enter the cut-off state, and the charging switch circuit and the charging resistance unit will enter the operating state, and the charging protocol function will be started. Therefore, it can ensure that the battery voltage of the device can be detected easily and quickly in the whole machine state without affecting the original charging protocol function, thereby effectively improving the convenience and applicability of battery voltage detection.
[0033] It should be noted that the various embodiments in the present invention are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the various embodiments can be referenced to each other.
[0034] It should also be noted that, in the present invention, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise one..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.
[0035] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined in the present invention may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown in the present invention, but will conform to the widest range consistent with the principles and novel features disclosed in the present invention.
Claims
1. An electronic atomization device, characterized in that: include: A battery, a charging interface and a battery voltage detection circuit, wherein the battery voltage detection circuit includes a voltage detection switch circuit, a charging switch circuit and a charging resistor unit; The voltage detection switch circuit is electrically connected to the first end of the charging resistor unit, the power supply end of the charging interface and the battery respectively, the charging switch circuit is electrically connected to the first end of the charging resistor unit and the power supply end of the charging interface respectively, the second end of the charging resistor unit is electrically connected to the communication channel end of the charging interface, and the common connection end of the charging interface and the charging resistor unit is used to be electrically connected to an external voltage detection device.
2. The electronic atomization device according to claim 1, characterized in that: The voltage detection switch circuit includes a first switch tube, a second switch tube, a first resistor and a second resistor; The first ends of the first switch tube and the second switch tube are both electrically connected to the power supply end of the charging interface, the second ends of the first switch tube and the second switch tube are both electrically connected to one end of the charging resistor unit, the third ends of the first switch tube and the second switch tube are both electrically connected to the positive electrode of the battery, the negative electrode of the battery is grounded, one end of the first resistor is electrically connected to the first end of the first switch tube, one end of the second resistor is electrically connected to the first end of the second switch tube, and the other ends of the first resistor and the second resistor are both grounded.
3. The electronic atomization device according to claim 2, characterized in that: The first switch tube and the second switch tube are both PMOS tubes.
4. The electronic atomization device according to claim 2, characterized in that: The voltage detection switch circuit also includes a third resistor and a fourth resistor; The third resistor is electrically connected between the power supply end of the charging interface and the first end of the first switch tube, and the fourth resistor is electrically connected between the power supply end of the charging interface and the first end of the second switch tube.
5. The electronic atomization device according to claim 1, characterized in that: The charging resistor unit includes a first transmission resistor and a second transmission resistor, one end of the first transmission resistor is electrically connected to the first communication channel end of the charging interface, one end of the second transmission resistor is electrically connected to the second communication channel end of the charging interface, and the other ends of the first transmission resistor and the second transmission resistor are electrically connected to the voltage detection switch circuit and the charging switch circuit, respectively.
6. The electronic atomization device according to claim 5, characterized in that: The charging switch circuit includes a third switch tube, a fourth switch tube, a fifth resistor and a sixth resistor. The first ends of the third switch tube and the fourth switch tube are both electrically connected to the power end of the charging interface, the second end of the third switch tube is electrically connected to the other end of the first transmission resistor, the second end of the fourth switch tube is electrically connected to the other end of the second transmission resistor, the third ends of the third switch tube and the fourth switch tube are both grounded, one end of the fifth resistor is electrically connected to the first end of the third switch tube, one end of the sixth resistor is electrically connected to the first end of the fourth switch tube, and the other ends of the fifth resistor and the sixth resistor are both grounded.
7. The electronic atomization device according to claim 6, characterized in that: The third switch tube and the fourth switch tube are both NMOS tubes.
8. The electronic atomization device according to claim 6, characterized in that: The charging switch circuit also includes a seventh resistor and an eighth resistor; The seventh resistor is electrically connected between the power supply end of the charging interface and the first end of the third switch tube, and the eighth resistor is electrically connected between the power supply end of the charging interface and the first end of the fourth switch tube.
9. The electronic atomization device according to any one of claims 1 to 8, characterized in that: The charging interface includes a USB Type-C interface.
10. A battery voltage measurement system, characterized in that: It comprises a voltage detection device and an electronic atomization device as claimed in any one of claims 1 to 9; The voltage detection device includes a measuring adapter board and a multimeter. The first end and the second end of the measuring adapter board are respectively electrically connected to the communication channel end of the charging interface in the electronic atomization device, and the voltage detection end of the multimeter is electrically connected to the first end or the second end of the measuring adapter board.