Sparkling water machine and battery-powered control circuit

Abstract

This application relates to a sparkling water machine and a battery-powered control circuit. The battery-powered control circuit includes a controlled switch unit, a drive circuit, a main control unit, and a charging unit. The input terminal of the controlled switch unit is electrically connected to the power supply port, and the output terminal of the controlled switch unit is electrically connected to the battery interface. The controlled terminal of the controlled switch unit is electrically connected to the output terminal of the drive circuit. The input terminal of the drive circuit is electrically connected to the main control unit and the charging unit, respectively. The main control unit generates a first switch signal, and the charging unit generates a second switch signal. The drive circuit converts the received first switch signal and second switch signal into corresponding first control signal and second control signal, respectively. The controlled switch unit controls the disconnection of the battery interface from the power supply port according to the first control signal received by the controlled terminal of the controlled switch unit, and controls the opening of the connection between the battery interface and the power supply port according to the second control signal received by the controlled terminal of the controlled switch unit.

Description

Technical Field

[0001] This application relates to the field of sparkling water machine technology, and in particular to a sparkling water machine and a battery-powered control circuit. Background Technology

[0002] Sparkling water has health benefits such as helping to regulate the body's acid-base balance and enhancing gastrointestinal motility. Naturally produced sparkling water is relatively rare; currently, most sparkling water is artificially produced using sparkling water machines.

[0003] In related technologies, portable sparkling water machines are equipped with small-sized sparkling water cartridges, which can produce sparkling water in small-capacity water bottles, making them convenient for use when traveling. Portable sparkling water machines are powered by lithium batteries or rechargeable batteries. During long-term disuse or long-distance transportation, the batteries of portable sparkling water machines will continuously discharge. When the battery's charge level is lower than a set threshold, the battery will not be able to recharge, meaning the battery will not be able to charge, thus rendering the portable sparkling water machine unusable.

[0004] In related technologies, portable sparkling water machines do not have effective shutdown control for their power supply batteries. When the sparkling water machine is transported long distances from the factory or is not used for a long time, the battery continues to discharge and becomes over-discharged, causing the battery to "starve." A "starved" battery will prevent the portable sparkling water machine from starting and working normally.

[0005] Currently, no effective solution has been proposed for the problem of portable sparkling water machines failing to shut off the battery, causing the battery to starve. Utility Model Content

[0006] In view of this, it is necessary to provide a sparkling water machine and a battery power supply control circuit to at least solve the problem in the related art of portable sparkling water machines not having a battery shutdown control, resulting in battery starvation.

[0007] In a first aspect, this application provides a technical solution as follows: a battery-powered control circuit for controlling the on / off operation of battery power supply in a sparkling water machine, comprising a controlled switch unit, a drive circuit, a main control unit, and a charging unit. The input terminal of the controlled switch unit is electrically connected to a power supply port, the output terminal of the controlled switch unit is electrically connected to a battery interface connected to the battery, the controlled terminal of the controlled switch unit is electrically connected to the output terminal of the drive circuit, and the input terminal of the drive circuit is electrically connected to the main control unit and the charging unit, respectively. The main control unit is at least used to generate a first switch signal; the charging unit is used to generate a second switch signal when the battery starts working; the drive circuit is used to convert the received first switch signal and second switch signal into corresponding first control signal and second control signal, respectively; the controlled switch unit is used to control the disconnection of the connection between the battery interface and the power supply port according to the first control signal received by the controlled terminal of the controlled switch unit, and to control the opening of the connection between the battery interface and the power supply port according to the second control signal received by the controlled terminal of the controlled switch unit.

[0008] In one embodiment, the controlled switch unit includes a first controlled switch, which includes a first port, a second port, and a third port. The first port is connected to the input terminal of the controlled switch unit, the second port is connected to the output terminal of the controlled switch unit, and the third port is connected to the controlled terminal of the controlled switch unit.

[0009] The first controlled switch is used to control the first port and the second port to disconnect when the third port receives the first control signal, and to control the first port and the second port to connect when the third port receives the second control signal.

[0010] In one embodiment, the first controlled switch includes a first switching transistor, the input terminal of which is connected to the first port, the output terminal of which is electrically connected to the second port and a filter capacitor, the other end of which is grounded, and the control terminal of which is electrically connected to the third port and electrically connected to the input terminal of which is connected through a first resistor. The first switching transistor is configured to disconnect its input terminal from its output terminal when the level of the first control signal received at its control terminal is a preset high level, and to connect its input terminal to its output terminal when the level of the second control signal received at its control terminal is a preset low level.

[0011] In one embodiment, the first switching transistor includes one of the following: a P-channel MOSFET and a PNP transistor.

[0012] In one embodiment, the driving circuit includes a second controlled switch, which includes a fourth port, a fifth port, and a sixth port. The fourth port is connected to the output terminal of the driving circuit, the fifth port is connected to the input terminal of the driving circuit, and the sixth port is grounded. The second controlled switch is configured to, when the level of the first switch signal received at the fifth port is a preset low level, control the fourth port to disconnect from the sixth port and generate a first control signal with a preset high level at the sixth port; and when the level of the second switch signal received at the fifth port is a preset high level, control the fourth port to connect to the sixth port and generate a second control signal with a preset low level at the sixth port.

[0013] In one embodiment, the second controlled switch includes a second switching transistor. The input terminal of the second switching transistor is connected to the fourth port via a second resistor in series. The control terminal of the second switching transistor is connected to the fifth port. The fifth port is electrically connected to the charging unit via a first coupling branch consisting of a first diode and a first current-limiting resistor in series. The fifth port is also electrically connected to the main control unit via a second coupling branch consisting of a second diode and a second current-limiting resistor in series. The output terminal of the second switching transistor is connected to the sixth port. The second switching transistor is configured to, when the level of the first switching signal received at its control terminal is a preset low level, control the input terminal and output terminal of the second switching transistor to disconnect and convert the first switching signal into a first control signal with a preset high level; and to, when the level of the second switching signal received at its control terminal is a preset high level, control the input terminal and output terminal of the second switching transistor to connect and convert the second switching signal into a second control signal with a preset low level.

[0014] In one embodiment, the second switching transistor includes one of the following: an NPN transistor or an N-channel MOSFET.

[0015] In one embodiment, the charging unit includes a charging module composed of JW-type charging chips.

[0016] In one embodiment, the main control unit includes one of the following: a microcontroller (MCU), a digital signal processor (DSP), or a programmable logic device (FPGA).

[0017] Secondly, this application provides a technical solution as follows: a sparkling water machine, including a battery switch circuit connected in series between a battery interface and a power supply port, wherein the battery switch circuit is the battery power supply control circuit described in the first aspect.

[0018] Compared with related technologies, this embodiment provides a sparkling water machine and a battery-powered control circuit. The battery-powered control circuit includes a controlled switch unit, a drive circuit, a main control unit, and a charging unit. The input terminal of the controlled switch unit is electrically connected to a power supply port, and the output terminal of the controlled switch unit is electrically connected to a battery interface connected to the battery. The controlled terminal of the controlled switch unit is electrically connected to the output terminal of the drive circuit. The input terminal of the drive circuit is electrically connected to both the main control unit and the charging unit. The main control unit generates a first switch signal, and the charging unit generates a second switch signal. The drive circuit then converts the received first and second switch signals into... The corresponding first and second control signals are replaced so that the controlled switch unit controls the disconnection of the battery interface from the power supply port according to the first control signal received by the controlled terminal of the controlled switch unit, and controls the opening of the connection between the battery interface and the power supply port according to the second control signal received by the controlled terminal of the controlled switch unit. By setting a corresponding battery switch, the battery interface is turned off from the external power supply port when the battery is not used for a long time. This solves the problem in related technologies where portable sparkling water machines do not have a battery shutdown control, causing the battery to starve. It achieves the beneficial effect of ensuring that the battery is not over-discharged and extending the service life of the battery and the sparkling water machine.

[0019] Details of one or more embodiments of this application are set forth in the following drawings and description to make other features, objects and advantages of this application more readily apparent. Attached Figure Description

[0020] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the present invention.

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 A structural block diagram of a battery power supply control circuit provided in an embodiment of this application;

[0023] Figure 2 A topology diagram provided for an embodiment of this application;

[0024] Figure 3 This is a schematic diagram of the topology of the charging unit according to an embodiment of this application;

[0025] Figure 4 This is a schematic diagram of the topology of the main control unit in an embodiment of this application. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0027] The electric kettle and control circuit of this application will be described below with reference to the accompanying drawings in the embodiments of this application and through specific embodiments.

[0028] Figure 1 A structural block diagram of a battery power supply control circuit provided in an embodiment of this application; Figure 2 This is a topology diagram provided in an embodiment of this application. The diagram shows a battery power supply control circuit applied to a sparkling water machine. This circuit shuts off the battery power supply when the sparkling water machine is transported long distances or not used for extended periods, preventing the battery from being over-discharged and "starved," ensuring that the battery can be recharged and restarted, and extending the service life of both the battery and the sparkling water machine.

[0029] Please see Figures 1 to 4 The battery power supply control circuit of this application embodiment is used to control the on / off switching of the battery power supply of a sparkling water machine. It includes a controlled switch unit 100, a drive circuit 200, a main control unit 300, and a charging unit 400. The input terminal of the controlled switch unit 100 is electrically connected to a power supply port 001, and the output terminal of the controlled switch unit 100 is electrically connected to a battery interface 002 connected to the battery. The controlled terminal of the controlled switch unit 100 is electrically connected to the output terminal of the drive circuit 200, and the input terminals of the drive circuit 200 are electrically connected to the main control unit 300 and the charging unit 400, respectively.

[0030] The main control unit 300 is used to generate at least the first switching signal.

[0031] In this embodiment, the main control unit 300 includes, but is not limited to, one of the following: a microcontroller (MCU), a digital signal processor (DSP), or a programmable logic device (FPGA). (See reference...) Figure 4 As shown, the main control unit 300 preferably uses a microcontroller of model R7F0C907B2DFP-C.

[0032] In this embodiment, when it is determined that long-distance, long-duration transportation is required, the main control unit 300 generates a first switch signal through program control, thereby controlling the disconnection of the battery interface 002 from the power supply port 001 through the drive circuit 200 and the controlled switch unit 100. At the same time, during use, the main control unit 300 also detects the battery status. When it detects that the battery is in a low-power state and is insufficient to support the power demand of other power-consuming units, the main control unit 300 can generate a corresponding first switch signal to shut off the connection between the battery interface 002 and the power supply port 001, keeping only the main control unit 300 in the working state. At the same time, it will charge the sparkling water machine's battery through an alarm prompt, thereby achieving low-power protection and preventing the battery from "starving".

[0033] The charging unit 400 is used to generate a second switching signal when the battery starts working.

[0034] In this embodiment, when the connection between the battery interface 002 and the power supply port 001 is turned off by the main control unit 300, and it is necessary to start the battery operation, refer to... Figure 3 The charging unit 400 shown is powered by an external adapter. The charging unit 400 first converts the external power supply (VBUS) into a supply voltage VBUS_VCC. This supply voltage VBUS_VCC is then regulated and converted into the voltage BAT+_DC-DC at the power supply port 001. After voltage conversion, it provides the voltage required for the sparkling water machine to operate. Simultaneously, after being powered, the charging unit 400 generates a second switching signal to connect the battery interface 002 to the power supply port 001 (see reference). Figure 2 and Figure 3 VCC in (the context of VCC).

[0035] In some embodiments, reference Figure 3 The charging unit 400 in this embodiment includes a charging module consisting of a JW3655 charging chip U3 and peripheral resistors, capacitors and inductors.

[0036] The driving circuit 200 is used to convert the received first switch signal and second switch signal into corresponding first control signal and second control signal, respectively.

[0037] In this embodiment, the first switch signal and the second switch signal are converted by the drive circuit 200 to generate a control signal that drives the controlled switch unit 100 to turn the battery interface 002 and the power supply port 001 on or off.

[0038] The controlled switch unit 100 is used to control the disconnection of the connection between the battery interface 002 and the power supply port 001 according to the first control signal received by the controlled terminal of the controlled switch unit 100, and to control the opening of the connection between the battery interface 002 and the power supply port 001 according to the second control signal received by the controlled terminal of the controlled switch unit 100.

[0039] The aforementioned battery power supply control circuit generates a first switch signal through the main control unit 300 and a second switch signal through the charging unit 400. The drive circuit 200 converts the received first and second switch signals into corresponding first and second control signals, respectively. This allows the controlled switch unit 100 to disconnect the connection between the battery interface 002 and the power supply port 001 based on the first control signal received by the controlled terminal of the controlled switch unit 100, and to open the connection between the battery interface 002 and the power supply port 001 based on the second control signal received by the controlled terminal of the controlled switch unit 100. By setting a corresponding battery switch, the battery interface 002 is disconnected from the external power supply port 001 when the battery is not used for a long time. This solves the problem in related technologies where portable sparkling water machines do not have a battery shut-off control, causing the battery to starve. It achieves the beneficial effect of ensuring that the battery is not over-discharged and extending the service life of the battery and the sparkling water machine.

[0040] To achieve battery switching control, specifically controlling the opening and closing of the connection between battery interface 002 and power supply port 001, refer to... Figure 2 In some embodiments, the controlled switch unit 100 includes a first controlled switch 11, which includes a first port, a second port, and a third port. The first port is connected to the input terminal of the controlled switch unit 100, the second port is connected to the output terminal of the controlled switch unit 100, and the third port is connected to the controlled terminal of the controlled switch unit 100.

[0041] The first controlled switch 11 is used to control the first port and the second port to disconnect when the third port receives the first control signal, and to control the first port and the second port to connect when the third port receives the second control signal.

[0042] In some alternative embodiments, reference is made to Figure 2The first controlled switch 11 includes a first switching transistor Q3. The input terminal of the first switching transistor Q3 is connected to a first port, and the output terminal of the first switching transistor Q3 is electrically connected to a second port and a filter capacitor C46. The other end of the filter capacitor C46 is grounded. The control terminal of the first switching transistor Q3 is electrically connected to a third port and is electrically connected to the input terminal of the first switching transistor Q3 through a first resistor R88. The first switching transistor Q3 is used to disconnect the input terminal from the output terminal when the level of the first control signal received at its control terminal is a preset high level, and to connect the input terminal from the output terminal when the level of the second control signal received at its control terminal is a preset low level.

[0043] It should be noted that the first switching transistor in the embodiments of this application includes, but is not limited to, transistors, MOSFETs, and field-effect transistors. Furthermore, based on the disclosure of this application, those skilled in the art will readily conceive of modifying the first switching transistor disclosed in this application to a controlled switch adapted to the specific selection of the switching transistor. Therefore, this application can be implemented regardless of whether the switching transistor is an NPN or PNP transistor, an N-channel or P-channel switching MOSFET, or an N-type or P-type field-effect transistor; no limitation is made in the embodiments of this application. In some optional embodiments, the first switching transistor preferably includes, but is not limited to, a P-channel MOSFET or a PNP transistor; in this embodiment, a CJ3401 type P-channel MOSFET is preferred.

[0044] To achieve the conversion of the corresponding switching signals, refer to Figure 2 In some embodiments, the driving circuit 200 includes a second controlled switch 21, which includes a fourth port, a fifth port, and a sixth port. The fourth port is connected to the output terminal of the driving circuit 200, the fifth port is connected to the input terminal of the driving circuit 200, and the sixth port is grounded. The second controlled switch 21 is used to control the fourth port to disconnect from the sixth port and generate a first control signal with a preset high level at the sixth port when the level of the first switch signal received at the fifth port is a preset low level, and to control the fourth port to connect to the sixth port and generate a second control signal with a preset low level at the sixth port when the level of the second switch signal received at the fifth port is a preset high level.

[0045] In some embodiments, reference Figure 2The second controlled switch 21 includes a second switching transistor Q4. The input terminal of the second switching transistor Q4 is connected to the fourth port through a series second resistor R89. The control terminal of the second switching transistor Q4 is connected to the fifth port. The fifth port is electrically connected to the charging unit 400 (reference network label VCC) through a first coupling branch composed of a series first diode D2 and a first current-limiting resistor R62. The fifth port is also electrically connected to the main control unit 300 (reference network label BAT_ON) through a second coupling branch composed of a series second diode D3 and a second current-limiting resistor R90. The output terminal of the second switching transistor Q4 is connected to the sixth port. The second switching transistor Q4 is used to control the input terminal and output terminal to disconnect when the level of the first switching signal received at its control terminal is a preset low level, and to convert the first switching signal into a first control signal with a preset high level when the level of the second switching signal received at its control terminal is a preset high level, and to control the input terminal and output terminal of the second switching transistor Q4 to connect when the level of the second switching signal received at its control terminal is a preset high level, and to convert the second switching signal into a second control signal with a preset low level.

[0046] It should be noted that the second switching transistor in the embodiments of this application includes, but is not limited to, transistors, MOSFETs, and field-effect transistors. Furthermore, based on the disclosure of this application, those skilled in the art will readily conceive of modifying the second switching transistor disclosed in this application to a driving circuit adapted to the specific selection of the switching transistor. Therefore, this application can be implemented regardless of whether the switching transistor is an NPN or PNP transistor, an N-channel or P-channel switching MOSFET, or an N-type or P-type field-effect transistor. This application is not limited in its embodiments. In some embodiments, the second switching transistor Q4 includes one of the following: an NPN transistor, an N-channel MOSFET, preferably a BC846B type transistor.

[0047] Secondly, this application provides a technical solution as follows: a sparkling water machine, including a battery switch circuit connected in series between the battery interface and the power supply port, wherein the battery switch circuit is the battery power supply control circuit in the above embodiment.

[0048] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive elements that are not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0049] The above description is merely a specific embodiment of the present invention, enabling those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A battery-powered control circuit for controlling the on-off of a battery-powered of a bubble water machine, characterized in that, The system includes a controlled switch unit (100), a drive circuit (200), a main control unit (300), and a charging unit (400). The input terminal of the controlled switch unit (100) is electrically connected to a power supply port (001), and the output terminal of the controlled switch unit (100) is electrically connected to a battery interface (002) connected to the battery. The controlled terminal of the controlled switch unit (100) is electrically connected to the output terminal of the drive circuit (200), and the input terminals of the drive circuit (200) are electrically connected to the main control unit (300) and the charging unit (400), respectively. The main control unit (300) is at least used to generate a first switching signal; The charging unit (400) is used to generate a second switching signal when the battery starts working; The driving circuit (200) is used to convert the received first switch signal and second switch signal into corresponding first control signal and second control signal, respectively. The controlled switch unit (100) is used to control the disconnection of the battery interface (002) and the power supply port (001) according to the first control signal received by the controlled terminal of the controlled switch unit (100), and to control the opening of the connection between the battery interface (002) and the power supply port (001) according to the second control signal received by the controlled terminal of the controlled switch unit (100).

2. The battery powered control circuit of claim 1, wherein, The controlled switch unit (100) includes a first controlled switch (11), which includes a first port, a second port, and a third port. The first port is connected to the input terminal of the controlled switch unit (100), the second port is connected to the output terminal of the controlled switch unit (100), and the third port is connected to the controlled terminal of the controlled switch unit (100). The first controlled switch (11) is used to control the first port and the second port to disconnect when the third port receives the first control signal, and to control the first port and the second port to connect when the third port receives the second control signal.

3. The battery powered control circuit of claim 2, wherein, The first controlled switch (11) includes a first switching transistor, the input terminal of the first switching transistor is connected to the first port, the output terminal of the first switching transistor is electrically connected to the second port and a filter capacitor, the other end of the filter capacitor is grounded, the control terminal of the first switching transistor is electrically connected to the third port and electrically connected to the input terminal of the first switching transistor through a first resistor, wherein the first switching transistor is used to control the input terminal of the first switching transistor to disconnect from the output terminal when the level of the first control signal received at its control terminal is a preset high level, and to control the input terminal of the first switching transistor to connect to the output terminal when the level of the second control signal received at its control terminal is a preset low level.

4. The battery powered control circuit of claim 3, wherein, The first switching transistor includes one of the following: a P-channel MOSFET or a PNP transistor.

5. The battery powered control circuit of claim 1, wherein, The driving circuit (200) includes a second controlled switch (21), which includes a fourth port, a fifth port, and a sixth port. The fourth port is connected to the output terminal of the driving circuit (200), the fifth port is connected to the input terminal of the driving circuit (200), and the sixth port is grounded. The second controlled switch (21) is used to control the fourth port to disconnect from the sixth port and generate a first control signal with a preset high level on the sixth port when the fifth port receives the first switch signal at a preset low level, and to control the fourth port to connect to the sixth port and generate a second control signal with a preset low level on the sixth port when the fifth port receives the second switch signal at a preset high level.

6. The battery powered control circuit of claim 5, wherein, The second controlled switch (21) includes a second switching transistor. The input terminal of the second switching transistor is connected to the fourth port through a second resistor in series. The control terminal of the second switching transistor is connected to the fifth port. The fifth port is electrically connected to the charging unit (400) through a first coupling branch composed of a first diode and a first current-limiting resistor in series. The fifth port is also electrically connected to the main control unit (300) through a second coupling branch composed of a second diode and a second current-limiting resistor in series. The output terminal of the second switching transistor is connected to the sixth port. The second switching transistor is used to control the input terminal and output terminal to disconnect when the level of the first switching signal received at its control terminal is a preset low level, and to convert the first switching signal into a first control signal with a preset high level. It is also used to control the input terminal and output terminal to connect when the level of the second switching signal received at its control terminal is a preset high level, and to convert the second switching signal into a second control signal with a preset low level.

7. The battery powered control circuit of claim 6, wherein, The second switching transistor includes one of the following: an NPN transistor or an N-channel MOSFET.

8. The battery powered control circuit of claim 1, wherein, The charging unit (400) includes a charging module composed of a JW3655 charging chip.

9. The battery powered control circuit of claim 1, wherein, The main control unit (300) includes one of the following: a microcontroller (MCU), a digital signal processor (DSP), or a programmable logic device (FPGA).

10. A sparkling water machine characterized by The battery switch circuit includes a battery switch circuit connected in series between the battery interface (002) and the power supply port, the battery switch circuit including the battery power supply control circuit according to any one of claims 1 to 9.

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