CN113226087B - Power supply system, power receiving system, main machine of electronic cigarette and cigarette bullet - Google Patents
Power supply system, power receiving system, main machine of electronic cigarette and cigarette bullet Download PDFInfo
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- CN113226087B CN113226087B CN201980004377.5A CN201980004377A CN113226087B CN 113226087 B CN113226087 B CN 113226087B CN 201980004377 A CN201980004377 A CN 201980004377A CN 113226087 B CN113226087 B CN 113226087B
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F47/00—Smokers' requisites not otherwise provided for
Abstract
A power supply system, receive electric system, electron cigarette's host computer and cartridge, power supply system includes: the voltage output end of the power supply module (101) and the signal receiving and transmitting end of the communication module (102) are respectively connected with the conductive piece (103); after the conductive piece (103) is contacted with the conductive piece (203) of the power receiving system, the communication module (102) acquires signals representing identity information of the power receiving system through the conductive piece (103) and the conductive piece (203) in the power receiving system; the communication module (102) comprises: the first end of the coupling capacitor is connected with the reader (104), and the second end is used as a signal receiving and transmitting end; the reader (104) receives and transmits signals through the coupling capacitor; the control unit (105) is connected to the reader (104) and is used for authenticating the power receiving system according to the identity information of the power receiving system, and controlling the power supply module (101) to supply power to the power receiving system through the conductive piece (103) and the conductive piece (203) of the power receiving system after the authentication is passed. By adopting the technical scheme, the quality of communication signals can be improved while the cost and the size of the product are reduced.
Description
Technical Field
The application relates to the technical field of circuits, in particular to a power supply system, a power receiving system, a main machine of an electronic cigarette and a cigarette cartridge.
Background
At present, the separated electronic cigarette mainly comprises a main machine and a cigarette cartridge, wherein the main machine comprises a controller, a battery, a sensor, keys, an LED indicator lamp and the like, and the cigarette cartridge comprises a heating wire and tobacco tar. The cartridge belongs to the consumable, and can be replaced. After the cartridge is inserted into the host, the cartridge is in contact connection with the host through a connector (POGO PIN and metal sheet), so that the heating wire in the cartridge is heated, and smoke is generated by tobacco tar.
Typically, the host will perform anti-counterfeit authentication on the inserted cartridge to ensure that the host and cartridge are of the same brand. One way to perform anti-counterfeit authentication is to perform authentication through data interaction between the host and the cartridge. In the related art, two communication modes exist between the host and the cartridge, one is: communication between the cartridge and the host is realized by using an Inter-Integrated Circuit (I2C for short), a serial peripheral interface (Serial Peripheral Interface for short) and a universal asynchronous receiver Transmitter (Universal Asynchronous Receiver/Transmitter for short, UART) and the like; the other is: and the communication between the cartridge and the host is realized by utilizing a non-contact coupling mode of the radio frequency antenna.
Disclosure of Invention
The application provides a power supply system, a power receiving system, a main machine of an electronic cigarette and a cigarette bullet, which can reduce the cost and the size of a product and improve the quality of communication signals.
The embodiment of the application provides a power supply system, which comprises: the device comprises a power supply module, a communication module and a conductive piece; the voltage output end of the power supply module and the signal receiving and transmitting end of the communication module are respectively connected with the conductive piece of the power supply system; after the conductive piece of the power supply system is contacted with the conductive piece in the power receiving system, the communication module obtains a signal representing identity information of the power receiving system through the conductive piece of the power supply system and the conductive piece of the power receiving system; the communication module comprises a coupling capacitor for signal coupling, a reader and a control unit; the first end of the coupling capacitor of the communication module is connected to the reader, and the second end of the coupling capacitor of the communication module is used as the signal receiving and transmitting end of the communication module; the reader receives and transmits signals through a coupling capacitor of the communication module; the control unit is connected to the reader and is used for authenticating the power receiving system according to the identity information of the power receiving system, and controlling the power supply module to supply power to the power receiving system through the conductive piece of the power supply system and the conductive piece of the power receiving system after the authentication is passed.
The embodiment of the application also provides a host of the electronic cigarette, and the power supply system is arranged in the host.
The embodiment of the application also provides a power receiving system which is matched with the power supply system for use, and comprises: the device comprises a power receiving module, a response module and a conductive piece; the voltage input end of the power receiving module and the signal receiving and transmitting end of the response module are respectively connected with the conductive piece of the power receiving system; after the conductive piece of the power receiving system is contacted with the conductive piece in the power supply system, the response module receives signals representing authentication of the power receiving system through the conductive piece of the power receiving system and the conductive piece of the power supply system and sends signals representing identity information of the power receiving system; the power receiving system is powered after passing the authentication of the power supply system; the response module comprises a coupling capacitor for signal coupling and an electronic tag; the first end of the coupling capacitor of the response module is connected to the electronic tag, and the second end of the coupling capacitor of the response module is used as a signal receiving and transmitting end of the response module; the electronic tag receives and transmits signals through the coupling capacitor of the response module, and is powered on by utilizing the energy of the received signals.
The embodiment of the application also provides a cigarette cartridge of the electronic cigarette, wherein the power receiving system is arranged in the cigarette cartridge, and the power receiving module is a heating wire.
The inventors found that the related art has at least the following problems: communication between the cartridge and the host computer is realized by using I2C, SPI, UART and the like, and the problems are that: additional spring plates are required, i.e. spring plates for communication are required in addition to the spring plates required for power supply, which increases the cost and size of the product. And communication modes such as I2C, SPI, UART are direct current signals, and line sequence is not right when inserting after 180 degrees of cartridge replacement, has the problem of directional plug. The communication between the cartridge and the host is realized by utilizing the mode of non-contact coupling of the radio frequency antenna, and the problems are that: the antenna is required to be arranged on the reader in the host and the radio frequency tag in the cigarette bullet, the cost of the antenna is high, the occupied space is large, the cost and the size of the product can be increased, and the signal quality of a non-contact mode is poor.
Compared with the prior art, the power supply system of the embodiment of the application comprises: the voltage output end of the power supply module and the signal receiving and transmitting end of the communication module are respectively connected with the conductive piece of the power supply system; after the conductive piece of the power supply system is contacted with the conductive piece in the power receiving system, the communication module obtains a signal representing identity information of the power receiving system through the conductive piece of the power supply system and the conductive piece of the power receiving system; the communication module comprises a coupling capacitor, a reader and a control unit; the first end of the coupling capacitor is connected with the reader, and the second end is used as a signal receiving and transmitting end of the communication module; the reader receives and transmits signals through the coupling capacitor; the control unit is connected to the reader and used for authenticating the power receiving system according to the identity information of the power receiving system, and after the authentication is passed, the power supply module is controlled to supply power to the power receiving system through the conductive piece of the power supplying system and the conductive piece of the power receiving system. In the embodiment of the application, the mode of receiving and transmitting signals by using the antenna arranged on the card reader and the tag in the related technology is improved to the mode of receiving and transmitting signals by using capacitive coupling, the space is not required to be reduced by the antenna, and the cost is saved because the cost of the capacitor is relatively low. And the communication module and the power supply module can share the conductive piece to realize power supply and communication, and no additional conductive piece is needed, so that the cost is further reduced. In addition, the signals transmitted and received by capacitive coupling are used as alternating current signals, so that the power supply system and the power receiving system can be contacted in any direction without affecting the communication between the two parties. Meanwhile, the capacitor can isolate direct current, so that a power supply loop for supplying power and a communication loop for communication are isolated and do not interfere with each other.
For example, the coupling capacitance of the communication module includes: a first capacitor and a second capacitor symmetrical to the first capacitor; the first end of the first capacitor and the first end of the second capacitor are respectively connected to two ends of the reader, and the second end of the first capacitor and the second end of the second capacitor are both used as signal receiving and transmitting ends of the communication module. The second capacitor and the first capacitor form a symmetrical capacitor, so that signals sent by the reader through the symmetrical capacitor are differential signals, and the anti-interference capability is improved.
For example, the communication module further includes: a capacitor for impedance matching; the first end of the capacitor for impedance matching is connected with the second end of the coupling capacitor of the communication module, and the second end is connected. The capacitor for impedance matching is arranged, so that the signal strength of a transmitted signal is guaranteed, and the maximum output power is obtained.
For example, the communication module includes: third and fourth capacitances for impedance matching; the first end of the third capacitor is connected with the second end of the first capacitor; the first end of the fourth capacitor is connected with the second end of the second capacitor; the second end of the third capacitor and the second end of the fourth capacitor are both connected with the reference ground. The third capacitor and the fourth capacitor are symmetrical capacitors, and the third capacitor and the fourth capacitor are used for impedance matching, so that the maximum output power is obtained and the anti-interference capability of signals is improved.
For example, the power supply system further includes: an inductance; the voltage output end of the power supply module is connected to a conductive piece of the power supply system through the inductor; the signal receiving and transmitting end of the communication module is directly connected to the conductive piece of the power supply system. The communication signal between the power supply system and the power receiving system is an alternating current signal, and the arrangement of the inductor is beneficial to preventing the communication signal from being strung to other places to attenuate, so that the communication signal is ensured to be transmitted to the power receiving system as much as possible. The inductor may also filter other interfering signals.
For example, the communication module further includes: a power amplifier; the power amplifier of the communication module is connected in series between the reader and the coupling capacitor of the communication module. The method is beneficial to improving the signal strength of signals received and transmitted by the reader.
Drawings
One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which the figures of the drawings are not to be taken in a limiting sense, unless otherwise indicated.
Fig. 1 is a schematic diagram of a power supply system in a first embodiment according to the application;
fig. 2 is a schematic diagram of a power receiving system in a first embodiment according to the present application;
fig. 3 is a schematic diagram of a power supply system in a second embodiment according to the application;
fig. 4 is a schematic diagram of a power receiving system in a second embodiment according to the application;
fig. 5 is a schematic diagram of a power supply system according to a third embodiment of the present application;
fig. 6 is a schematic diagram of another power supply system in a third embodiment according to the application;
FIG. 7 is a schematic diagram of a power receiving system according to a third embodiment of the application;
fig. 8 is a schematic diagram of a power supply system in a fourth embodiment according to the application;
fig. 9 is a schematic diagram of a power receiving system in a fourth embodiment according to the application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, some embodiments of the present application will be described in further detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application. The following embodiments are divided for convenience of description, and should not be construed as limiting the specific implementation of the present application, and the embodiments can be mutually combined and referred to without contradiction.
The first embodiment of the application relates to a power supply system, which can carry out identity authentication on a power receiving system after being in contact connection with the power receiving system, and can supply power to the power receiving system if the authentication is passed. The power supply system and the power receiving system can be arranged on a product needing anti-counterfeiting authentication. In one example, the power supply system may be disposed on a host of the split electronic cigarette, and the corresponding power receiving system may be disposed within a cartridge of the electronic cigarette. In another example, the power supply system may be disposed within the printer and the corresponding power receiving system may be disposed within the ink cartridge. However, the implementation is not limited thereto.
For convenience of explanation, in this embodiment and the following embodiments, the power supply system is set in the main unit of the electronic cigarette as an example, and the power receiving system is set in the cartridge of the electronic cigarette as an example. The power supply system in the host mainly authenticates the identity of the cartridge after detecting that the cartridge is inserted into the host, and can supply power to the heating wire in the cartridge after determining that the cartridge is of the same brand as the host, so that the heating wire generates heat. Implementation details of the present embodiment are specifically described below, and the following description is provided only for facilitating understanding, and is not necessary for implementing the present embodiment.
As shown in fig. 1, a schematic diagram of a power supply system in this embodiment may include: a power supply module 101, a communication module 102 and a conductive member 103.
In one example, the power supply module 101 may include: the power supply and the power supply switch K1, the power supply can be a rechargeable lithium battery. The voltage output end of the power supply module 101 may be the output end of the power supply anode shown in fig. 1 after passing through the power supply switch K1, and if K1 is closed, the power supply module 101 may output a voltage, and the output voltage may be transmitted to the conductive element 103. The conductive member 103 may include a POGO PIN1 and a POGO PIN2, the positive electrode of the power supply may be connected to the POGO PIN1 through K1, and the negative electrode of the power supply may be connected to the POGO PIN2 through the ground line in fig. 1.
When the cartridge is inserted into the host, the conductive member 103 of the power supply system is in contact with the conductive member 203 of the power receiving system shown in fig. 2, and the conductive member 203 may include a metal sheet 1 and a metal sheet 2. Namely, after the host computer contacts with the cartridge, the POGO PIN1 is in contact connection with the metal sheet 1, and the POGO PIN2 is in contact connection with the metal sheet 2. In fig. 2, both ends of a heating wire 201 are connected to a metal sheet 1 and a metal sheet 2, respectively. Referring to fig. 1 and 2, the power supply circuit of the heating wire 201 includes a power supply anode, a power supply switch K1, a POGO PIN1, a metal sheet 1, the heating wire 201, a metal sheet 2, a POGO PIN2, and a power supply cathode, which are sequentially connected. When the switch K1 is closed, the power supply loop of the heating filament 201 is turned on, and the power supply module 101 can supply power to the heating filament 201 of the cartridge. The heating wire generally has 1.5 ohm, 2.1 ohm and the like, and can heat tobacco tar in the tobacco cartridge to generate smoke.
The following describes in detail how the switch K1 is closed:
the communication module 102 in fig. 1 includes a coupling capacitor for signal coupling, the reader 104 and the control unit 105, and the coupling capacitor is exemplified as the first capacitor C1 in fig. 1. The signal receiving and transmitting end of the communication module 102 is connected to the conductive member 103, and is configured to obtain a signal representing the identity information of the cartridge body after the conductive member 103 is in contact with and connected to the conductive member 203. For example, the communication module 102 may send a signal indicative of authentication of the cartridge and receive a signal indicative of cartridge identity information fed back by the cartridge. The first end of the first capacitor C1 is connected to the reader 104, and the second end is used as a signal receiving and transmitting end, where the reader 104 receives and transmits signals through the first capacitor C1, that is, receives and transmits signals in a capacitive coupling manner. In fig. 1, a radio frequency signal sent by the reader 104 may be coupled to a power supply line through the first capacitor C1, where the radio frequency signal may be a signal representing authentication of the cartridge, and the radio frequency signal is transmitted to the cartridge side through the connection of the conductive member 103 and the conductive member 203.
In the schematic diagram of the power receiving system shown in fig. 2, the signal transceiver of the response module 202 is connected to the conductive member 203; after the conductive member 203 is in contact with the conductive member 103, the response module 202 receives the radio frequency signal sent by the communication module 102, and generates and sends a signal representing the identity information of the cartridge. The response module 202 includes a coupling capacitor for signal coupling and an electronic tag 204, where the coupling capacitor is exemplified by a fifth capacitor C5 in fig. 2. The first end of the fifth capacitor C5 is connected to the electronic tag 204, and the second end is used as a signal receiving and transmitting end of the response module 202. The electronic tag 204 performs signal transmission and reception through the fifth capacitor C5, that is, performs signal transmission and reception in a capacitive coupling manner, and is powered up by using energy of the received signal. In fig. 2, the fifth capacitor C5 may couple a signal (response signal) representing the identity information of the cartridge sent by the electronic tag 204 to a power supply line on the cartridge side, and transmit the signal to the signal transceiver of the communication module 102 through the contact connection between the conductive element 203 and the conductive element 103, so that the reader 104 receives the response signal sent by the electronic tag 204.
In one example, after receiving the response signal, the reader in fig. 1 may send the response signal to the control center 105, and the control center 105 performs authentication, and if the authentication is passed, the power supply module 101 is controlled to supply power to the power receiving system through the conductive member 203 and the conductive member 103. For example, the control center 105 may control the power supply switch K1 to be closed, thereby controlling the power supply module 101 to supply power to the power receiving system. In the present embodiment, the manner in which the power supply module 101 is controlled to supply power to the power receiving system is merely taken as an example, and the manner in which the power supply switch K1 is provided in the power supply module 101 is not limited to this in the specific implementation.
In another example, reader 104 in fig. 1 may authenticate the response signal after receiving the response signal, and after determining that the authentication is passed, send information that the authentication is passed to control center 105. After receiving the authentication passing information, the control center 105 may control the power supply switch K1 to be closed, so as to allow the power supply module 101 to supply power to the power receiving system.
In one example, the manner in which the reader authenticates the response signal may be: reader 104 and electronic tag 204 may be provided with corresponding encryption and decryption functions. Reader 104 transmits a radio frequency signal carrying a random number, which radio frequency signal can be coupled to the power supply line via first capacitor C1 and transmitted to the power supply line of the power receiving system via the contact connection of POGO PIN1 and metal sheet 1. Since the rf signal is an ac signal, most of the rf signal is received by the signal transceiver of the response module 202, i.e. is acquired by the electronic tag 204 through the fifth capacitor C5. The electronic tag 204 may power up by using the obtained energy of the radio frequency signal, and encrypt the random number carried in the radio frequency signal by using a preset encryption algorithm to generate a response signal, where the response signal may represent identity information of the power receiving system. The response signal can be coupled via a fifth capacitor C5 to the supply line of the power receiving system and transmitted via the contact connection of the POGO PIN1 and the metal sheet 1 to the supply line of the power receiving system. Since the response signal is an ac signal, most of the response signal is received by the transceiver of the communication module 102, i.e. is acquired by the reader 104 through the first capacitor C1. The reader 104 decrypts the obtained response signal by using a preset decryption algorithm, and when the random number obtained after decryption is the same as the random number sent to the electronic tag 204, it can be determined that the power receiving system passes the authentication. Then, the authentication-passing information is transmitted to the control center 105, and the control center 105 controls the switch K1 to be turned on after receiving the authentication-passing information. The preset encryption algorithm and decryption algorithm may be set according to actual needs, which is not specifically limited in this embodiment.
In another example, the power supply system may verify the power receiving system by: reader 104 indicates the identity information by means of a digital signature. The electronic tag 204 may verify the identity of the cartridge by means of a digital signature. In the present embodiment, the above two verification methods are merely examples, and the present application is not limited to these examples.
In one example, reader 104 is a radio frequency identification (Radio Frequency Identification; RFID Reader), and electronic TAG 204 is an RFID TAG (RFID TAG), where RFID includes near field communications at 125Khz,13.56Mhz,900Mhz, etc., and TAG refers to TAGs with certain security attributes, including but not limited to Mifare, felica cards. The RFID Reader and the RFID TAG may be chips that implement different functions. The control unit 105 may be a control circuit board including a processor and other circuitry of the electronic cigarette. The electronic cigarette processor mainly processes various logic control and operation, such as key detection, LED indication, smoke detection, charge and discharge management and the like.
It should be noted that, as can be seen from fig. 1 and 2, the communication between the host and the cartridge is not subject to the power supplied from the host to the cartridge, that is, the communication between the host and the cartridge is possible even if the power supply switch K1 is not closed. The communication loop that forms between host computer and the cigarette bullet includes that connect gradually: reader 104, first capacitor C1, POGO PIN1, metal sheet 1, fifth capacitor C5, electronic tag 204, metal sheet 2, POGO PIN2. The power supply of the host computer is connected with the control center 105 to supply power to the control center 105, and the control center 105 is connected with the reader 104 to supply power to the reader 104. The radio frequency signal sent by the reader 104 is coupled to the power supply line through the first capacitor C1, is transmitted to the cartridge side through the contact connection between the POGO PIN1 and the metal sheet 1, and the electronic tag 204 is powered through the energy of the radio frequency signal coupled by the fifth capacitor C5 and sends out a response signal to the radio frequency signal. Therefore, even if the host does not supply power to the cartridge, the authentication of the cartridge can be completed, that is, in this embodiment, the authentication of the host to the cartridge can be performed before the heating wire is heated, and if the cartridge which is not authenticated appears, the power supply can be refused. In this embodiment, the pre-authentication of the cartridge avoids the risk vulnerability existing in the related art when the communication between the cartridge and the host is realized by using I2C, SPI, UART, etc., which usually needs to be verified after the smoking action is detected. And moreover, a communication loop formed between the host and the cartridge is equivalent to that the two circuits are conducted after being contacted, namely, signals are directly coupled, the signal intensity is high, and the communication quality is good.
Compared with the prior art, the embodiment has the following beneficial effects: 1. the non-contact antenna coupling mode of the reader on the electronic tag is changed into circuit contact coupling, namely capacitive coupling, and the antenna is not required to be arranged, so that the space is reduced, the cost is saved, and the communication quality is better. 2. The communication signals can be directly coupled to the power supply line on the side of the cartridge after the cartridge is contacted with the host computer by utilizing the capacitive coupling mode, the host computer side does not need additional POGO PIN, the cartridge side does not need additional metal sheets, the requirements for the POGO PIN and the metal sheets are reduced, and the production cost of the host computer and the cartridge is reduced. 3. The coupled communication signals are alternating current signals, and the nondirectional reverse insertion (180-degree insertion by rotation) of the cartridges is supported. 4. The capacitor can isolate the direct current, so that the communication loop and the power supply loop are isolated and do not interfere with each other, and the communication between the host and the cartridge is not limited by the power supply of the host to the heating wire in the cartridge, namely, the host can communicate with the cartridge at any time under the condition of not supplying power to the heating wire in the cartridge.
A second embodiment of the present application relates to a power supply system, and a schematic diagram of the power supply system in this embodiment may be shown in fig. 3. Implementation details in this embodiment are specifically described below, and the following description is merely provided for facilitating understanding, and is not a requirement of implementing this embodiment.
The power supply system in this embodiment is different from the first embodiment in that the coupling capacitance in the communication module 102 includes: a first capacitor C1 and a second capacitor C2 symmetrical to the first capacitor C1; the capacitance values of C1 and C2 may be the same, and the specific value may be set according to actual needs, which is not specifically limited in this embodiment. The following mainly describes differences between the present embodiment and the first embodiment:
in fig. 3, one end of reader 104 is connected to a reference ground; the first end of the first capacitor C1 and the first end of the second capacitor C2 are respectively connected to two ends of the reader 104, and the second end of the first capacitor C1 and the second end of the second capacitor C2 are both used as signal receiving and transmitting ends of the communication module 102, so that a signal sent by the reader 104 through the signal receiving and transmitting ends is a differential signal. That is, the first capacitor C1 may couple the rf signal sent by the reader 104 to the power supply line, and the second capacitor C2 may couple the rf signal sent by the reader 104 to the ground line. The radio frequency signal coupled to the power supply line is transmitted to the power supply line on the cartridge side through the contact connection between the POGO PIN1 and the metal sheet 1, and the radio frequency signal coupled to the ground line is transmitted to the ground line on the cartridge side through the contact connection between the POGO PIN2 and the metal sheet 2.
In one example, a schematic diagram of the power receiving system may be shown in fig. 4, where, compared to fig. 2, the coupling capacitance in the response module 202 in fig. 4 includes: a fifth capacitor C5 and a sixth capacitor C6 symmetrical to the fifth capacitor C5; wherein the capacitance values of C5 and C6 may be the same. The first end of the fifth capacitor C5 and the first end of the sixth capacitor C6 are respectively connected to two ends of the electronic tag 204, that is, the two ends of the electronic tag 204 are respectively connected in series with the fifth capacitor C5 and the sixth capacitor C6. The second end of the fifth capacitor C5 and the second end of the sixth capacitor C6 are both used as the signal receiving and transmitting ends of the response module 202, so that the signal sent by the electronic tag 204 through the signal receiving and transmitting ends is a differential signal. That is, the fifth capacitor C5 may receive the radio frequency signal transmitted by the communication module 102 to the power supply line on the cartridge side in a capacitive coupling manner, and the sixth capacitor C6 may receive the radio frequency signal transmitted by the communication module 102 to the ground line on the cartridge side in a capacitive coupling manner. The electronic tag 204 may acquire the rf signal coupled by the fifth capacitor C5 and the sixth capacitor C6, and use the energy of the acquired rf signal to supply power, generate and transmit a response signal for the rf signal. The fifth capacitor C5 may couple the response signal sent by the electronic tag 204 to the power supply line on the cartridge side, and the sixth capacitor C6 may couple the response signal sent by the electronic tag 204 to the ground line on the cartridge side. The response signal coupled to the power supply line is transmitted to the power supply line of the power supply system through the contact connection of the POGO PIN1 and the metal sheet 1, and the radio frequency signal coupled to the ground line is transmitted to the ground line of the power supply system through the contact connection of the POGO PIN2 and the metal sheet 2. Reader 104 in the power supply system of fig. 3 may obtain the response signal from electronic tag 204 through first capacitor C1 and second capacitor C2.
Compared with the prior art, in the embodiment, the second capacitor symmetrical to the first capacitor and the sixth capacitor symmetrical to the fifth capacitor are arranged, so that signals received and transmitted by the reader and the electronic tag are differential signals, and the anti-interference capability of the signals is improved.
A third embodiment of the present application relates to a power supply system, and in this embodiment, a manner of impedance matching a power supply system and a power receiving system is mainly provided. Implementation details in this embodiment are specifically described below, and the following description is merely provided for facilitating understanding, and is not a requirement of implementing this embodiment.
In one example, a schematic diagram of the power supply system may be shown in fig. 5, where fig. 5 is different from fig. 1 in that the communication module 102 further includes: the third capacitor C3 is taken as an example of the capacitor for performing impedance matching in fig. 5. The first end of the third capacitor C3 is connected to the second end of the first capacitor C1, and the second end is grounded. The impedance matching reflects a power transmission relationship between the power supply system and the power receiving system, and when impedance matching is achieved between the power supply system and the power receiving system, a maximum output power can be obtained. The manner of achieving impedance matching in the present embodiment is similar to that of the related art, and therefore, description thereof will not be given here.
In another example, a schematic diagram of a power supply system may be shown in fig. 6. In comparison with fig. 5, the capacitors for impedance matching in the power supply system of fig. 6 include two capacitors that are symmetrical to each other, and in fig. 6, the third capacitor C3 and the fourth capacitor C4 are taken as an example; the capacitance values of C3 and C4 may be the same, and the specific value may be calculated according to an impedance matching manner of the antenna in the related art, which is not limited in this embodiment. In fig. 6, a first end of the third capacitor C3 is connected to a second end of the first capacitor C1; the first end of the fourth capacitor C4 is connected with the second end of the second capacitor C2; the second end of the third capacitor C3 and the second end of the fourth capacitor C4 are both connected to the reference ground.
The foregoing fig. 5 and 6 illustrate the manner in which impedance matching is performed in a power supply system, and in a specific implementation, impedance matching may also be performed in a power receiving system. For example, referring to fig. 7, compared to fig. 4, the response module 202 of the power receiving system in fig. 7 may further include a seventh capacitor C7 for performing impedance matching; a series branch formed by the electronic tag 204, the fifth capacitor C5, and the sixth capacitor C6 is connected in parallel with the seventh capacitor C7.
In fig. 4 and 6, the capacitors C1, C2, C5, and C6 are used for signal coupling, and the capacitors C3 and C4 are used for impedance matching. The RFID radio frequency signals in the figure are differential signals, so symmetrical capacitors C1 and C2, C3 and C4, C5 and C6 are required. If the RFID radio frequency signal is a single-ended signal, half of the capacitance can be omitted, i.e. only C1, C3, C5 are needed.
In addition, to further increase the output power, a power amplifier may be added, such as a series power amplifier between the coupling capacitors of reader 104 and communication module 102 for a power supply system. For example, in FIG. 1 a power amplifier may be connected in series between reader 104 and first capacitor C1; in fig. 3, a power amplifier may be connected in series between reader 104 and first capacitor C1, and/or a power amplifier may be connected in series between reader 104 and second capacitor C2. A power amplifier may be connected in series between the coupling capacitance of the response module 202 and the electronic tag 204 for the powered system. For example, in fig. 2, a power amplifier may be connected in series between the fifth capacitor C5 and the electronic tag 204; in fig. 4, a power amplifier may be connected in series between the fifth capacitor C5 and the electronic tag 204, and/or a power amplifier may be connected in series between the sixth capacitor C6 and the electronic tag 204.
Compared with the prior art, in the embodiment, the capacitor for impedance matching is added to ensure the signal strength of the transmitted signal, which is beneficial to obtaining the maximum output power.
A fourth embodiment of the present application relates to a power supply system, and a schematic diagram of the power supply system in this embodiment may be shown in fig. 8. Implementation details in this embodiment are specifically described below, and the following description is merely provided for facilitating understanding, and is not a requirement of implementing this embodiment.
The power supply system in this embodiment is different from the first embodiment in that the power supply system further includes: the voltage output end of the power supply module 101 is connected to the conductive piece 103 of the power supply system through the inductor L1; the signal receiving and transmitting end of the communication module 102 is directly connected to the conductive member 103 of the power supply system. That is, in fig. 8, one end of the power supply switch K1 is connected to the POGO PIN1 through the inductor L1, and the second end of the first capacitor C1 is directly connected to the POGO PIN1. When the power supply switch K1 is closed, the power supply loop of the heating wire is turned on, and the inductor L1 can avoid attenuation of the radio frequency signal sent by the second end of the first capacitor C1, that is, the signal receiving and transmitting end, from being strung into other circuits possibly existing in the control center 105. That is, the inductor L1 may enable the radio frequency signal coupled by the first capacitor C1 to be transmitted to the power receiving system as much as possible.
In an example, an inductor L2 may be connected in series before the heating wire 201, and referring to fig. 9, a voltage input end of the heating wire 201 is connected to the conductive member 203 through the inductor L2; the signal transceiver end of the response module 202 is directly connected to the conductive member 203. That is, in fig. 9, the voltage input end of the heating wire 201 is connected to the metal sheet 1 through the inductor L2, and the second end of the fifth capacitor C5 is directly connected to the metal sheet 1. When the power supply switch K1 is closed, the power supply loop of the heating wire is turned on, and the inductor L2 can avoid attenuation of the response or the received radio frequency signal sent by the second end of the fifth capacitor C5, that is, the signal receiving and transmitting end, from being strung to the branch where the heating wire 201 is located. That is, the radio frequency signals transmitted to the cartridge side by the host side are transmitted to the response module 202 of the cartridge side as much as possible, and are received by the electronic tag 204, and the response signals sent by the electronic tag 204 are transmitted to the host side and are received by the reader 104 as much as possible.
In this embodiment, the inductor may be provided only in the power supply system, the inductor may be provided only in the power receiving system, or both the power supply system and the power receiving system. However, the present embodiment is not particularly limited thereto, and those skilled in the art can flexibly set the present embodiment according to actual needs. Furthermore, when a symmetrical capacitor is provided, for example, in the power supply system, for symmetrical capacitors C1 and C2, in addition to providing inductor L1 at the position of fig. 8, an inductor may be provided at a position on the ground line symmetrical to inductor L1, where the inductor may prevent the communication signal coupled by C2 from being attenuated by being transmitted to the control unit 105 along the ground line.
Compared with the prior art, in the embodiment, the arrangement of the inductor can enable communication signals (radio frequency signals and response signals) between the host side and the cartridge side to be transmitted only in the communication loop, so that the communication signals are prevented from being attenuated due to being connected to other loops, and the signal quality of the communication signals is improved.
A fifth embodiment of the present application relates to a host of an electronic cigarette, in which a power supply system as in any one of the above embodiments is disposed.
A sixth embodiment of the present application relates to a power receiving system, which may include, with reference to fig. 2: a power receiving module 201, a response module 202 and a conductive piece 203; in fig. 2, the power receiving module 201 is exemplified by a heating wire, but in the specific implementation, the application is not limited thereto. In fig. 2, a voltage input end of the power receiving module 201 and a signal receiving and transmitting end of the response module 202 are respectively connected to the conductive member 203; after the conductive piece 203 is in contact with the conductive piece 103, the response module 202 receives signals representing authentication of the power receiving system through the conductive piece 203 and the conductive piece 103 and sends signals representing identity information of the power receiving system; the power receiving system is powered after passing the authentication of the power supply system; the response module 202 includes a coupling capacitor for signal coupling, such as the fifth capacitor C5 in fig. 2, and an electronic tag 204. The first end of the fifth capacitor C5 is connected to the electronic tag 204, and the second end is used as a signal receiving and transmitting end of the response module 202; the electronic tag 204 receives and transmits signals through the fifth capacitor C5, and is powered up by the energy of the received signals.
Note that, since the power supply systems in the first to fourth embodiments described above can be used in combination with the power receiving system in the present embodiment. The related technical details mentioned in the first to fourth embodiments are still valid in the present embodiment, and the technical effects achieved in the first to fourth embodiments can be achieved in the present embodiment as well. Further, since the power supply system used in cooperation with the power receiving system has been specifically described in the first to fourth embodiments, a description thereof will be omitted for the sake of reducing repetition. Accordingly, the related-art details mentioned in the present embodiment can also be applied to the first to fourth embodiments.
The seventh embodiment of the application relates to a cartridge of an electronic cigarette, wherein the power receiving system is arranged in the cartridge, and a power receiving module in the power receiving system is a heating wire.
It should be noted that, in order to highlight the innovative part of the present application, devices that are not very close to solving the technical problem presented by the present application are not introduced in the first embodiment and the second embodiment, but this does not indicate that other devices are not present in the present embodiment.
It will be understood by those of ordinary skill in the art that the foregoing embodiments are specific examples of carrying out the application and that various changes in form and details may be made therein without departing from the spirit and scope of the application.
Claims (13)
1. A power supply system, comprising: the device comprises a power supply module, a communication module and a conductive piece;
the voltage output end of the power supply module and the signal receiving and transmitting end of the communication module are respectively connected with the conductive piece of the power supply system;
after the conductive piece of the power supply system is contacted with the conductive piece in the power receiving system, the communication module obtains a signal representing identity information of the power receiving system through the conductive piece of the power supply system and the conductive piece in the power receiving system;
the communication module comprises a coupling capacitor for signal coupling, a reader and a control unit;
the first end of the coupling capacitor of the communication module is connected to the reader, and the second end of the coupling capacitor of the communication module is used as the signal receiving and transmitting end of the communication module;
the reader receives and transmits signals through a coupling capacitor of the communication module;
the control unit is connected to the reader and is used for authenticating the power receiving system according to the identity information of the power receiving system, and controlling the power supply module to supply power to the power receiving system through the conductive piece of the power supply system and the conductive piece in the power receiving system after the authentication is passed.
2. The power supply system of claim 1, wherein the coupling capacitance of the communication module comprises: a first capacitor and a second capacitor symmetrical to the first capacitor;
the first end of the first capacitor and the first end of the second capacitor are respectively connected to two ends of the reader, and the second end of the first capacitor and the second end of the second capacitor are both used as signal receiving and transmitting ends of the communication module.
3. The power supply system of claim 1, wherein the communication module further comprises: a capacitor for impedance matching;
the first end of the capacitor for impedance matching is connected with the second end of the coupling capacitor of the communication module, and the second end of the capacitor is grounded.
4. The power supply system of claim 2, wherein the communication module further comprises: third and fourth capacitances for impedance matching;
the first end of the third capacitor is connected with the second end of the first capacitor;
the first end of the fourth capacitor is connected with the second end of the second capacitor;
the second end of the third capacitor and the second end of the fourth capacitor are both connected with the reference ground.
5. The power supply system according to any one of claims 1 to 4, characterized in that the power supply system further comprises: an inductance;
the voltage output end of the power supply module is connected to a conductive piece of the power supply system through the inductor;
the signal receiving and transmitting end of the communication module is directly connected to the conductive piece of the power supply system.
6. The power supply system of any one of claims 1 to 4, wherein the communication module further comprises: a power amplifier;
the power amplifier of the communication module is connected in series between the reader and the coupling capacitor of the communication module.
7. A host computer of an electronic cigarette, wherein the power supply system according to any one of claims 1 to 6 is disposed in the host computer.
8. A power receiving system for use with the power supply system of any one of claims 1 to 6, comprising: the device comprises a power receiving module, a response module and a conductive piece;
the voltage input end of the power receiving module and the signal receiving and transmitting end of the response module are respectively connected with the conductive piece of the power receiving system;
after the conductive piece of the power receiving system is contacted with the conductive piece in the power supply system, the response module receives signals representing authentication of the power receiving system through the conductive piece of the power receiving system and the conductive piece in the power supply system and sends signals representing identity information of the power receiving system; the power receiving system is powered after passing the authentication of the power supply system;
the response module comprises a coupling capacitor for signal coupling and an electronic tag;
the first end of the coupling capacitor of the response module is connected to the electronic tag, and the second end of the coupling capacitor of the response module is used as a signal receiving and transmitting end of the response module; the electronic tag receives and transmits signals through the coupling capacitor of the response module, and is powered on by utilizing the energy of the received signals.
9. The power receiving system of claim 8, wherein the power receiving system is used in combination with the power supply system of claim 2 or 4; the coupling capacitance of the response module comprises: a fifth capacitor and a sixth capacitor symmetrical to the fifth capacitor;
the first end of the fifth capacitor and the first end of the sixth capacitor are respectively connected to two ends of the electronic tag;
and the second end of the fifth capacitor and the second end of the sixth capacitor are used as signal receiving and transmitting ends of the response module.
10. The power receiving system of claim 9, wherein the response module further comprises: a seventh capacitor for performing impedance matching;
and a serial branch formed by the electronic tag, the fifth capacitor and the sixth capacitor is connected with the seventh capacitor in parallel.
11. The power receiving system according to any one of claims 8 to 10, further comprising: an inductance;
the voltage input end of the power receiving module is connected to the conductive piece of the power receiving system through the inductor;
the signal receiving and transmitting end of the response module is directly connected to the conductive piece of the power receiving system.
12. The power receiving system according to any one of claims 8 to 10, wherein the response module further includes: a power amplifier;
the power amplifier of the response module is connected in series between the electronic tag and the coupling capacitor of the response module.
13. A cartridge of an electronic cigarette, wherein the cartridge is provided with the power receiving system according to any one of claims 8 to 12, and the power receiving module is a heating wire.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2019/118768 WO2021092891A1 (en) | 2019-11-15 | 2019-11-15 | Power supply system, power receiving system, main body of electronic cigarette, and cigarette cartridge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113226087A CN113226087A (en) | 2021-08-06 |
| CN113226087B true CN113226087B (en) | 2023-10-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201980004377.5A Active CN113226087B (en) | 2019-11-15 | 2019-11-15 | Power supply system, power receiving system, main machine of electronic cigarette and cigarette bullet |
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| Country | Link |
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| CN (1) | CN113226087B (en) |
| WO (1) | WO2021092891A1 (en) |
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| CN113907444A (en) * | 2021-06-17 | 2022-01-11 | 珠海市杰理科技股份有限公司 | Electric heating device and rapid authentication method thereof and related equipment |
| CN114128926B (en) * | 2021-11-04 | 2023-10-27 | 绿烟实业（深圳）有限公司 | Cigarette bullet and electron cigarette of electron cigarette |
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| WO2021092891A1 (en) | 2021-05-20 |
| CN113226087A (en) | 2021-08-06 |
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