CN203326663U - Electronic cigarette case - Google Patents

Abstract

The utility model discloses an electronic cigarette case. The electronic cigarette case comprises a cigarette case body provided with a charging port, the electronic cigarette is inserted into the charging port when the electronic cigarette is charged, the electronic cigarette case further comprises a controller, a trigger switch, a charging detection module and an electronic cigarette charging output module, the trigger switch is in communication connection with the controller, the trigger switch is close to the charging port, when the electronic cigarette is inserted from the charging port, the trigger switch is triggered, the controller controls the electronic cigarette charging output module to enter a charging mode when the trigger switch is triggered, and in the charging mode, the electronic cigarette charging output module generates a charging current and outputs the charging current to the electronic cigarette to charge the inserted electronic cigarette; when the charging detection module detects that the electronic cigarette is fully charged, the controller controls the electronic cigarette charging output module to enter an ultralow standby mode, and in the ultralow standby mode, the electronic cigarette charging output module stops generating charging current, so that the standby current of the electronic cigarette case is less than 10 microamperes.

Description

electronic cigarette case

technical field

The utility model relates to the field of electronic cigarettes, in particular to an electronic cigarette case.

Background technique

At present, electronic cigarette case products are widely used, not only because electronic cigarette case products are easy to carry and can be used to store electronic cigarettes, but also, when the battery power of electronic cigarettes is exhausted, electronic cigarette cases with built-in backup batteries can also be used to charge electronic cigarettes. to charge.

However, in the existing electronic cigarette case, when the electronic cigarette is inserted into the charging port of the electronic cigarette case for charging, even if the electronic cigarette is fully charged, as long as it is not pulled out, the electronic cigarette case still maintains a high standby current , such as hundreds of microamps to several milliamperes. For example, in one of the charging methods, as long as the e-cigarette is not pulled out, the e-cigarette box keeps charging it, resulting in that after the e-cigarette is fully charged, the standby current of the e-cigarette box is still relatively large (for example, several mA ). For another example, in another charging method, the processor of the electronic cigarette box needs to check the port level of the charging port intermittently to determine whether the electronic cigarette is plugged in, and it will not stop even after the electronic cigarette box is fully charged. This query process will cause a relatively large static current (for example, hundreds of uA) of the electronic cigarette case. Due to the large standby current of the electronic cigarette case, the electronic cigarette case will be completely out of power after a long time. service life.

Utility model content

The technical problem to be solved by the utility model is to provide an electronic cigarette case with a smaller standby power consumption in view of the defect of relatively large standby power consumption of the electronic cigarette case in the prior art.

The technical scheme that the utility model solves its technical problem adopts is:

Provided is an electronic cigarette case, comprising a cigarette case body for accommodating electronic cigarettes, the cigarette case body is provided with a charging port, and the electronic cigarette is inserted into the charging port when charging the electronic cigarette, the electronic cigarette case It also includes a controller, a trigger switch communicated with the controller, a charging detection module, and an electronic cigarette charging output module, the trigger switch is close to the charging port, and when the electronic cigarette is inserted from the charging port, it triggers the a trigger switch, the controller controls the electronic cigarette charging output module to enter a charging mode when detecting that the trigger switch is triggered, and in the charging mode, the electronic cigarette charging output module generates a charging current and supplies it to the The electronic cigarette outputs the charging current to charge the inserted electronic cigarette; when the charging detection module detects that the electronic cigarette is fully charged, the controller controls the electronic cigarette charging output module to enter an ultra-low standby mode , in the ultra-low standby mode, the electronic cigarette charging output module stops generating the charging current, so that the standby current of the electronic cigarette case is less than 10 microamperes.

In the electronic cigarette case of the present utility model, the trigger switch includes an elastic button arranged close to the charging port and a signal generator communicatively connected with the elastic button. When the electronic cigarette is inserted into the charging port, the The elastic button is pressed by the electronic cigarette to start the signal generator to generate an insertion signal.

In the electronic cigarette case described in the present invention, the signal generator includes an eleventh resistor, a twelfth resistor, a fifth capacitor, a sixth capacitor, and a three-terminal adjustable shunt reference source, and the three-terminal adjustable The anode of the shunt reference source is connected to the controller, the cathode of the three-terminal adjustable shunt reference source is connected to a reference voltage through the twelfth resistor, and the cathode of the three-terminal adjustable shunt reference source is also connected to a The positive voltage is connected, the reference pole of the three-terminal adjustable shunt reference source is also connected with the positive voltage, the sixth capacitor is connected between the positive voltage and ground; the elastic button is connected between the controller and a Between negative voltages, the first end of the eleventh resistor is connected to the negative voltage through the elastic button, the second end of the eleventh resistor is connected to the reference voltage, and the eleventh resistor The second terminal of is also communicated with the ground via the fifth capacitor.

In the electronic cigarette case of the present invention, the trigger switch includes a Hall switch arranged near the charging port, and when the electronic cigarette with magnet is inserted into the charging port, the Hall switch generates an insertion signal.

In the electronic cigarette case of the present invention, the charging detection module includes a charging current detection module for detecting the charging current, and when the detected charging current is less than a preset current threshold, it is judged that the electronic cigarette full charge.

In the electronic cigarette case of the present invention, the charging current detection module includes a ninth resistor, a tenth resistor and a fourth capacitor, and the tenth resistor is connected between the negative electrode of the battery rod of the electronic cigarette and the ground , the ninth resistor is connected between the negative pole of the battery pole and the controller, and the fourth capacitor is connected between the controller and ground.

In the electronic cigarette case of the present invention, the charging detection module includes a voltage detection module for detecting the voltage of the electronic cigarette, and when the detected voltage is greater than a preset voltage threshold, it is judged that the electronic cigarette is full charge.

In the electronic cigarette case of the present invention, the voltage detection module includes a seventh resistor, an eighth resistor and a second capacitor, and the seventh resistor and the eighth resistor are connected in series to the battery of the electronic cigarette Between the positive pole of the rod and the ground, the common node of the seventh resistor and the eighth resistor communicates with the controller, and the second capacitor is connected between the controller and the ground.

In the electronic cigarette case of the present invention, the controller includes a chip HT46R01B, a third capacitor and a third diode, the third capacitor is connected between the reference voltage port of the HT46R01B and the ground, and the first The anodes of the three diodes are connected to a reference voltage, and the cathode of the third diode is connected to the reference voltage port of the HT46R01B.

Implementing the embodiment of the utility model has the following beneficial effects: by automatically triggering the charging mode when an electronic cigarette is inserted, generating and outputting a charging current to charge the electronic cigarette in the inserted electronic cigarette, and after the electronic cigarette is fully charged , stop generating charging current, reduce the total standby current of the electronic cigarette case to less than 10 microamps, which can significantly reduce the standby power consumption of the electronic cigarette case, reduce the charging times of the electronic cigarette case, and prolong the service life of the built-in battery of the electronic cigarette case. Improve user experience.

Description of drawings

The utility model will be further described below in conjunction with accompanying drawing and embodiment, in the accompanying drawing:

Fig. 1 is a schematic diagram of the electronic cigarette case provided by the utility model;

Fig. 2 is a working sequence diagram of charging the electronic cigarette by the electronic cigarette box shown in Fig. 1 provided by the utility model;

Fig. 3 is a circuit diagram of charging the electronic cigarette by the electronic cigarette case shown in Fig. 1 .

Detailed ways

In order to have a clearer understanding of the technical features, purposes and effects of the utility model, the specific implementation of the utility model is described in detail with reference to the accompanying drawings.

The electronic cigarette case usually includes a cigarette case body for accommodating electronic cigarettes. There is a charging port on the cigarette case body. When charging the electronic cigarette, insert the electronic cigarette into the charging port so that the battery rod in the electronic cigarette and the battery rod in the cigarette case body The relevant circuits are connected, so that the electronic cigarette can be charged by the built-in battery of the electronic cigarette case. Fig. 1 shows a schematic diagram of an embodiment of relevant circuits in the cigarette case body. As shown in Figure 1, the electronic cigarette case 100 includes a controller 110, a trigger switch 120, a charging detection module 130 and an electronic cigarette charging output module 140, wherein the trigger switch 120 is close to the charging port, and when the electronic cigarette is inserted from the charging port, trigger Switch 120 is activated. In addition, the trigger switch 120 , the charging detection module 130 and the electronic cigarette charging output module 140 are respectively connected to the controller 110 in communication. After the controller 110 detects that the trigger switch 120 connected to it is triggered, it controls the electronic cigarette charging output module 140 to enter the charging mode. In the charging mode, the electronic cigarette charging output module 140 generates a charging current and outputs the charging current to the electronic cigarette to charge the inserted electronic cigarette. When the charging detection module 130 detects that the electronic cigarette is fully charged, the controller 110 controls the electronic cigarette charging output module 140 to enter an ultra-low standby mode. In the ultra-low standby mode, the electronic cigarette charging output module 140 stops generating charging current, so that the standby current of the electronic cigarette case is less than 10 microamperes.

The electronic cigarette case provided by the embodiment of the utility model automatically triggers to enter the charging mode when an electronic cigarette is inserted, generates and outputs a charging current to charge the inserted electronic cigarette, and stops generating the charging current after the electronic cigarette is fully charged. The total standby current of the electronic cigarette box is reduced to less than 10 microamps, and it is not necessary to start the inquiry process continuously or at intervals like the existing electronic cigarette box to check whether there is an electronic cigarette inserted into the charging port on the electronic cigarette box. There is no need to continue to generate charging current until the electronic cigarette is pulled out after the electronic cigarette is fully charged, which can significantly reduce the standby power consumption of the electronic cigarette case, reduce the charging times of the electronic cigarette case, prolong the service life of the built-in battery of the electronic cigarette case, and improve user experience.

Since the electronic cigarette case of the present utility model needs to be used in conjunction with the electronic cigarette, in various embodiments of the present utility model, the structures of the electronic cigarette case are also different according to different electronic cigarettes.

For example, if the electronic cigarette is made of hard material, the trigger switch 120 may include an elastic button (switch K as shown in FIG. 3 ) arranged near the charging port and a signal generator (as shown in FIG. 3 shown as a circuit module composed of the eleventh resistor R11, the twelfth resistor R12, the fifth capacitor C5, the sixth capacitor C6, and the three-terminal adjustable shunt reference source U3), when the electronic cigarette is inserted into the charging port, the elastic button is activated The electronic cigarette is squeezed to close the circuit of the signal generator, thereby starting the signal generator to generate the insertion signal. Specifically, the elastic button can be a mechanical button such as a shrapnel or a spring. When the electronic cigarette is not inserted into the charging port, the elastic button is in the original state and protrudes near the charging port. When the electronic cigarette is inserted into the charging port, the elastic button contacts and is squeezed by the electronic cigarette, and is in a compressed state, thus closing the signal generator circuit connected to it. Those skilled in the art should understand that, in addition to generating an insertion signal when the electronic cigarette is inserted into the charging port, the trigger switch 120 can also generate a pull-out signal when the electronic cigarette is pulled out of the charging port. As shown in Figure 3, the three-terminal adjustable shunt reference source U3 is TL431, the anode of TL431 is connected with the PA7 port of the controller chip HT46R01B, the cathode of TL431 is connected with a reference voltage VDD through R12, and the cathode of TL431 is also connected with a 2.5V The positive voltage is connected, and the reference electrode of TL431 is also connected with the 2.5V positive voltage. C6 is connected between the 2.5V positive voltage and the ground; the elastic button K is connected between the PA6 port of the controller chip and a negative voltage OUT-, R11 The first end of R11 is connected to the negative voltage OUT- through the elastic button K, the second end of R11 is connected to the reference voltage VDD, and the second end of R11 is also connected to the ground through C5.

For another example, if the battery rod in the electronic cigarette adopts a magnetic connection structure, the trigger switch may include a Hall switch disposed near the charging port. When the electronic cigarette with a magnet is inserted into the charging port, the Hall switch generates an insertion signal. Specifically, when the electronic cigarette is inserted into the charging port, its internal magnet causes the external magnetic field of the Hall switch to change, and the Hall switch can detect the change of its external magnetic field according to the principle of the Hall effect, and will use the analog signal or digital signal Output this change. Those skilled in the art should understand that, in addition to generating an insertion signal when the electronic cigarette is inserted into the charging port, the trigger switch 120 can also generate a pull-out signal when the electronic cigarette is pulled out of the charging port.

For another example, if the battery pole of the electronic cigarette is connected with a charging management circuit, then the charging detection module 130 may include a charging current detection module for detecting the charging current output by the electronic cigarette charging output module 140 to the electronic cigarette. When the detected charging current When it is less than a preset current threshold, it is determined that the electronic cigarette is fully charged. Wherein, the preset current threshold may be 20mA. Specifically, if the battery rod of the electronic cigarette is connected with a charging management circuit, then when the electronic cigarette is fully charged, the charging management circuit will control the voltage of the electronic cigarette to remain basically unchanged, and reduce the charging current by a large amount to continuously charge the electronic rod. Charging, therefore, as long as the charging detection module 130 detects that the charging current is less than the preset current threshold, it can be determined that the electronic cigarette is fully charged. As shown in FIG. 3 , the charging current detection module 130 may include a ninth resistor R9, a tenth resistor R10 and a fourth capacitor C4. R10 is connected between the negative pole of the battery pole of the electronic cigarette and the ground, and R9 is connected between the negative pole of the battery pole and the control Between the PA5 port of the controller chip HT46R01B, C4 is connected between the PA5 port of the controller chip and the ground.

For another example, if the battery pole of the electronic cigarette is not connected to the charging management circuit, then the charging detection module 130 may include a voltage detection module for detecting the voltage of the electronic cigarette, and when the detected voltage is greater than a preset voltage threshold, determine that the electronic cigarette is charged. full charge. Wherein, the preset voltage threshold may be 4.2 volts. Specifically, if the battery pole is not connected to the charging management circuit, even after the electronic cigarette is fully charged, as long as the electronic cigarette case still outputs charging current to the electronic cigarette, the voltage of the electronic cigarette will still continue to rise, so the charging detection module 130 only needs to detect When the voltage of the electronic cigarette exceeds a preset voltage threshold, it can be determined that the electronic cigarette is fully charged. As shown in Figure 3, the voltage detection module may include a seventh resistor R7, an eighth resistor R8, and a second capacitor C2. R7 and R8 are sequentially connected in series between the positive pole of the battery pole of the electronic cigarette and the ground, and the common node of R7 and R8 is connected to The AN2 port of the controller chip HT46R01B is connected, and C2 is connected between the AN2 port of the controller chip and the ground.

As shown in FIG. 3 , the controller 110 may include a circuit module composed of a chip U1 , a third capacitor C3 and a third diode D3 , wherein the model of the chip U1 may be HT46R01B. C3 is connected between the reference voltage (VDD) port of HT46R01B and ground, the positive pole of D3 is connected to a reference voltage VDD, and the negative pole of D3 is connected to the reference voltage port of HT46R01B. In addition, the PA4 port of the HT46R01B is connected to the electronic cigarette charging output module 140, the AN3 port is connected to the 2.5V positive voltage, and the AN1 port is connected to the built-in battery charging module of the electronic cigarette case to detect the voltage of the built-in battery of the electronic cigarette case.

Please refer to FIG. 2 , which is a working sequence diagram of charging the electronic cigarette inserted into the electronic cigarette case shown in FIG. 1 . As shown in FIG. 2 , the signal sent by the trigger switch 120 - the plug-in signal and the pull-out signal - is represented by "trigger signal", and the output of the electronic cigarette charging output module 140 is represented by "charging output", wherein, The plug-in signal is high level, and the pull-out signal is low level. When the electronic cigarette is inserted into the charging port to trigger the trigger switch 120, the trigger switch 120 generates a high-level insertion signal, that is, a rising edge occurs, and the rising edge triggers the controller 110 to start the electronic cigarette charging output module 140 to generate and output the charging current (charging current In the digital circuit, it is expressed as output high level) to charge the electronic cigarette. When the charging detection module 130 detects that the electronic cigarette is fully charged, the controller 110 controls the electronic cigarette charging output module 140 to stop generating the charging current (no current or output low level in the digital circuit due to the small current), and no longer Charge the electronic cigarette. When the electronic cigarette is pulled out from the charging port, the trigger switch 120 is reset to generate a low-level pull-out signal. When an electronic cigarette is inserted into the charging port again, repeat the above process.

Although Fig. 2 shows a digital signal control method using a pulse signal for control, the utility model is not limited thereto, and in other embodiments of the utility model, any other method well known to those skilled in the art can also be used Circuit control is also performed.

Embodiments of the present utility model have been described above in conjunction with the accompanying drawings, but the present utility model is not limited to the above-mentioned specific implementation, and the above-mentioned specific implementation is only illustrative, rather than restrictive. Under the enlightenment of the utility model, personnel can also make many forms without departing from the scope of protection of the purpose of the utility model and claims, and these all belong to the protection of the utility model.

Claims (9)

1. an electronic cigarette packet, comprise for holding the cigarette case body of electronic cigarette, be provided with charge port on described cigarette case body, when electronic cigarette is charged, described electronic cigarette is inserted in described charge port, it is characterized in that, described electronic cigarette packet also comprises controller and the trigger switch be connected with described controller, charging detection module and electronic cigarette charging output module, described trigger switch is near described charge port, when electronic cigarette inserts from described charge port, trigger described trigger switch, described controller is controlled described electronic cigarette charging output module and is entered charge mode detecting when described trigger switch is triggered, under described charge mode, described electronic cigarette charging output module generates charging current and exports described charging current to described electronic cigarette, electronic cigarette charging to described insertion, when described charging detection module detects described electronic cigarette and is full of electricity, described controller is controlled described electronic cigarette charging output module and is entered ultralow standby mode, under described ultralow standby mode, described electronic cigarette charging output module stops generating described charging current, makes the standby current of described electronic cigarette packet be less than 10 microamperes.

2. electronic cigarette packet as claimed in claim 1, it is characterized in that, described trigger switch comprises the elastic button and the signal generator of with described elastic button, communicating by letter and being connected near described charge port setting, when electronic cigarette inserts described charge port, described elastic button is pushed by described electronic cigarette, starts described signal generator and generates the insertion signal.

3. electronic cigarette packet as claimed in claim 2 is characterized in that, described signal generator comprises the 11 resistance, the 12 resistance, the 5th electric capacity, the 6th electric capacity and three end adjustable shunt reference sources, the anode of described three end adjustable shunt reference sources is communicated with described controller, the negative electrode of described three end adjustable shunt reference sources is communicated with a reference voltage via described the 12 resistance, the negative electrode of described three end adjustable shunt reference sources also is communicated with a positive voltage, the reference utmost point of described three end adjustable shunt reference sources also is communicated with described positive voltage, described the 6th electric capacity is connected between described positive voltage and ground, described elastic button is connected between controller and a negative voltage, the first end of described the 11 resistance is communicated with described negative voltage by described elastic button, the second end of described the 11 resistance is communicated with described reference voltage, and the second end of described the 11 resistance also is communicated with ground via described the 5th electric capacity.

4. electronic cigarette packet as claimed in claim 1, is characterized in that, described trigger switch comprises the Hall switch arranged near described charge port, and when the electronic cigarette with magnet inserts described charge port, described Hall switch generates and inserts signal.

5. electronic cigarette packet as claimed in claim 1, it is characterized in that, described charging detection module comprises the charging current detection module for detection of described charging current, when detected charging current is less than a predetermined current threshold value, judges that described electronic cigarette is full of electricity.

6. electronic cigarette packet as claimed in claim 5, it is characterized in that, described charging current detection module comprises the 9th resistance, the tenth resistance and the 4th electric capacity, described the tenth resistance is connected between the battery bar negative pole and ground of described electronic cigarette, described the 9th resistance is connected between described battery bar negative pole and described controller, and described the 4th electric capacity is connected between described controller and ground.

7. electronic cigarette packet as claimed in claim 1, is characterized in that, described charging detection module comprises the voltage detection module for detection of the voltage of described electronic cigarette, when detected voltage is greater than a predetermined voltage threshold, judges that described electronic cigarette is full of electricity.

8. electronic cigarette packet as claimed in claim 7, it is characterized in that, described voltage detection module comprises the 7th resistance, the 8th resistance and the second electric capacity, described the 7th resistance and described the 8th resistance are connected between the battery bar positive pole and ground of described electronic cigarette successively, the common node of described the 7th resistance and described the 8th resistance is communicated with described controller, and described the second electric capacity is connected between described controller and ground.

9. electronic cigarette packet as claimed in claim 1, it is characterized in that, described controller comprises chip HT46R01B, the 3rd electric capacity and the 3rd diode, described the 3rd electric capacity is connected between the reference voltage port and ground of HT46R01B, the positive pole of described the 3rd diode connects a reference voltage, and the negative pole of described the 3rd diode connects the reference voltage port of HT46R01B.

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