Water mist nasal irrigator

Abstract

The utility model discloses a water mist nasal irrigator, and relates to the technical field of nasal irrigators. The water mist nose washing device comprises a battery, a nose washing assembly, a driving circuit and a control circuit. The control circuit can control the drive circuit to drive the nasal washing assembly to generate water mist to clean the nasal cavity. A spray head of the nose washing assembly is connected with a water tank pipe, cleaning liquid in a water tank can flow out to the spray head through driving of a driving circuit, and the spray head can convert the liquid cleaning liquid into fine water mist and spray the fine water mist out. The direction and angle of the nozzle can be adjusted according to needs. Therefore, compared with a common nasal irrigator, the spray speed of the nasal irrigator is more stable, the cleaning means is softer, and stable water mist can be sprayed through the spray head to clean the nasal cavity.

Description

Technical Field

[0001] The utility model relates to the technical field of nasal washers, in particular to a water mist nasal washer. Background Art

[0002] Nasal irrigation plays an important role in modern life. It can be used to clean the nasal cavity, relieve nasal symptoms, and prevent nasal infections. Nasal irrigation can clean the pathogens, allergens, dirt and other harmful substances that have accumulated in the nasal cavity by sending saline into the nostrils, flowing through the nasal vestibule, sinuses, nasal passages and the nasopharynx. With the help of the bactericidal effect of saline and the impact of water flow, it helps to restore the normal physiological environment of the nasal cavity and maintain the self-detoxification function of the nasal cavity.

[0003] However, the water pressure and speed of ordinary nasal rinsers are often not stable enough and are not suitable for people with weaker physical conditions such as children and the elderly. Utility Model Content

[0004] The main purpose of the utility model is to provide a water mist nasal washer, aiming to solve the problem of unstable pressure and speed of water flow in ordinary nasal washer.

[0005] To achieve the above purpose, the utility model provides a water mist nasal wash device, comprising:

[0006] Battery;

[0007] A nasal washing assembly, the nasal washing assembly comprising a nozzle and a water tank; the nozzle is connected to the water tank pipe;

[0008] A driving circuit, the driving circuit is electrically connected to the battery; the driving circuit is also physically connected to the nasal washing component; the driving circuit is used to drive the nasal washing component to work;

[0009] A control circuit, wherein the control circuit is electrically connected to the battery and the drive circuit respectively; the control circuit is used to control the operation of the drive circuit.

[0010] Optionally, the water mist nasal washer also includes a charging circuit; the charging circuit is electrically connected to the external power supply voltage, the control circuit and the battery respectively; the charging circuit is used to manage the charging of the battery; and the control circuit is also used to control the operation of the charging circuit.

[0011] Optionally, the water mist nasal washer also includes a battery protection circuit, which is electrically connected to the charging circuit, the control circuit, the drive circuit and the battery respectively; the battery protection circuit is used to limit the charging current and discharging current of the battery.

[0012] Optionally, the water mist nasal washer also includes a key circuit, which is electrically connected to the control circuit and the battery respectively; the key circuit is used to input a control signal; the control circuit is also used to receive the control signal and work according to the control signal.

[0013] Optionally, the water mist nasal washer further comprises an indicator light circuit, and the indicator light circuit is electrically connected to the control circuit and the battery respectively; the control circuit is also used to control the operation of the indicator light circuit.

[0014] Optionally, the charging circuit includes an XC3101 chip.

[0015] Optionally, the charging circuit further includes a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a first capacitor, a second capacitor, a third capacitor, a fuse and a transient voltage suppression tube;

[0016] Among them, one end of the fuse is electrically connected to the positive electrode of the external power supply voltage; the other end of the fuse, the negative electrode of the transient voltage suppression tube, one end of the first capacitor, one end of the first resistor, one end of the third resistor, and one end of the second capacitor are electrically connected to the VCC pin of the XC3101 chip; the positive electrode of the transient voltage suppression tube, the other end of the first capacitor, one end of the second resistor, one end of the fourth resistor, the other end of the second capacitor, the GND pin of the XC3101 chip, one end of the fifth resistor, and the GND pin of the third capacitor One end is grounded to the negative pole of the external power supply voltage; the other end of the first resistor and the other end of the second resistor are electrically connected to the control circuit; the other end of the third resistor, the other end of the fourth resistor, and the CE pin of the XC3101 chip are electrically connected to the control circuit; the STDBY pin of the XC3101 chip is electrically connected to the control circuit; the PROG pin of the XC3101 chip is electrically connected to the other end of the fifth resistor; the other end of the third capacitor and the BAT pin of the XC3101 chip are connected to the output end of the charging circuit.

[0017] Optionally, the driving circuit includes a sixth resistor, a seventh resistor, an eighth resistor, a ninth resistor, a tenth resistor, a fourth capacitor, a fifth capacitor, a sixth capacitor, a seventh capacitor, a first NMOS transistor, a second NMOS transistor, a transformer, a diode and a driving motor;

[0018] Among them, one end of the fourth capacitor and one end of the sixth resistor are electrically connected to the control circuit; the other end of the sixth resistor, one end of the seventh resistor, the source of the first NMOS tube and the source of the second NMOS tube are electrically connected; the other end of the fourth capacitor, the other end of the seventh capacitor, and one end of the tenth resistor are grounded; the other end of the tenth resistor, one end of the ninth resistor, the gate of the first NMOS tube and the gate of the second NMOS tube are electrically connected; the other end of the ninth resistor is electrically connected to the control circuit; the drain of the first NMOS tube, the drain of the second NMOS tube, and one end of the eighth resistor are electrically connected to the first end of the secondary coil of the transformer; the other end of the eighth resistor, the positive electrode of the diode, one end of the drive motor, and one end of the fifth capacitor are electrically connected to the second end of the secondary coil of the transformer; the other end of the fifth capacitor, the other end of the drive motor, the negative electrode of the diode, the first end of the primary coil of the transformer, the second end of the primary coil of the transformer, one end of the sixth capacitor, and one end of the seventh capacitor are electrically connected to the power input end of the drive circuit; the other end of the sixth capacitor and the other end of the seventh capacitor are grounded.

[0019] Optionally, the battery protection circuit includes an XB8886A chip.

[0020] Optionally, the battery protection circuit further includes an eighth capacitor, an eleventh resistor and a twelfth resistor;

[0021] Among them, the power supply end of the battery protection circuit and the positive electrode of the battery are connected to one end of the twelfth resistor; the other end of the twelfth resistor and one end of the eighth capacitor are electrically connected to the VDD pin of the XB8886A chip; the other end of the eighth capacitor, the GND pin of the XB8886A chip, and the EPAD pin of the XB8886A chip are electrically connected to the negative electrode of the battery; the VM pin of the XB8886A chip and the other end of the eleventh resistor are grounded.

[0022] The technical solution of the utility model provides a water mist nasal wash device, including a battery, a nasal wash component, a driving circuit and a control circuit. The control circuit can control the driving circuit, thereby driving the nasal wash component to generate water mist to clean the nasal cavity. The nozzle of the nasal wash component is connected to the water tank through a water outlet pipe. Driven by the driving circuit, the cleaning liquid in the water tank can flow out to the nozzle, and the nozzle can convert the liquid cleaning liquid into fine water mist and spray it out. The nozzle can also adjust the direction and angle as needed. Therefore, compared with ordinary nasal wash devices, the spray speed of the technical solution of the utility model is more stable, the cleaning method is softer, and the nasal cavity can be cleaned by spraying stable water mist. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0024] Figure 1 This is a schematic structural diagram of an embodiment of the water mist nasal washer of the utility model;

[0025] Figure 2 This is a schematic structural diagram of another embodiment of the water mist nasal washer of the utility model;

[0026] Figure 3 This is an electronic circuit diagram of a charging circuit of an embodiment of the water mist nasal washer of the utility model;

[0027] Figure 4 This is an electronic circuit diagram of a driving circuit of an embodiment of the water mist nasal washer of the utility model;

[0028] Figure 5 This is an electronic circuit diagram of a battery protection circuit of an embodiment of the water mist nasal washer of the utility model;

[0029] Figure 6 This is an electronic circuit diagram of a control circuit of an embodiment of the water mist nasal washer of the present invention.

[0030] Description of Figure Numbers:

[0031]

[0032] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0035] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0036] The water pressure and speed of ordinary nasal rinsers are often not stable enough and are not suitable for people with weaker physical conditions such as children and the elderly.

[0037] In order to solve the above problems, the utility model provides a water mist nasal washer.

[0038] Reference Figure 1 In one embodiment of the utility model, the water mist nasal washer comprises:

[0039] Battery 01;

[0040] The nose washing component 04 includes a nozzle and a water tank; the nozzle is connected to the water tank pipe;

[0041] The driving circuit 03 is electrically connected to the battery 01; the driving circuit 03 is also physically connected to the nose washing component 04; the driving circuit 03 is used to drive the operation of the nose washing component 04;

[0042] The control circuit 02 is electrically connected to the battery 01 and the drive circuit 03 respectively; the control circuit 02 is used to control the operation of the drive circuit 03.

[0043] In this embodiment, the control circuit 02 can control the driving circuit 03 to drive the nasal washing component 04 to generate water mist to clean the nasal cavity. Specifically, the nozzle of the nasal washing component 04 is connected to the water tank through a water outlet pipe, and the driving circuit 03 can pump the cleaning liquid in the water tank to the nozzle, and the nozzle can convert the liquid cleaning liquid into fine water mist and spray it out. Among them, the nozzle can adjust the direction and angle as needed. In this way, this embodiment can clean the nasal cavity by spraying stable water mist. Compared with ordinary nasal washing devices, the spray speed is more stable and the cleaning method is softer.

[0044] In this embodiment, the water mist nasal washer can include three working modes, namely, a weak gear mode, a strong gear mode and a pulse gear mode. When the water mist nasal washer is in the weak gear mode, the control circuit 02 controls the output of a weaker current to control the drive circuit 03 to drive the nasal washing component 04 at a lower power. When the water mist nasal washer is in the strong gear mode, the control circuit 02 controls the output of a stronger current to control the drive circuit 03 to drive the nasal washing component 04 at a higher power. When the water mist nasal washer is in the pulse gear mode, the control circuit 02 controls the output of a stronger current and no current periodically and alternately to control the drive circuit 03 to drive the nasal washing component 04 to work and stop working at a higher power, such as periodically and alternately controlling the drive circuit 03 to be in a start state within 1.5S and in a stop state within 0.5S. In this way, the water mist can be subdivided into multiple short sprays, making the water mist more delicate, so that the water mist used for nasal washing is softer and more comfortable.

[0045] In the utility model, the control circuit 02 can control the driving circuit 03 to drive the nasal washing component 04 to generate water mist to clean the nasal cavity. The nozzle of the nasal washing component 04 is connected to the water tank through a water outlet pipe, and the driving circuit 03 can pump the cleaning liquid in the water tank to the nozzle, and the nozzle can convert the liquid cleaning liquid into fine water mist and spray it out. The nozzle can adjust the direction and angle as needed. In this way, the utility model can clean the nasal cavity by spraying stable water mist. Compared with ordinary nasal washing devices, the spray speed is more stable and the cleaning method is softer.

[0046] Specifically, refer to Figure 2 In one embodiment of the utility model, the water mist nasal washer also includes a charging circuit 05; the charging circuit 05 is electrically connected to the external power supply voltage, the control circuit 02 and the battery 01 respectively; the charging circuit 05 is used to manage the charging of the battery 01; the control circuit 02 is also used to control the operation of the charging circuit 05.

[0047] In this embodiment, the charging circuit 05 can convert the external power supply voltage into a power supply voltage input suitable for the battery 01. The charging circuit 05 can also detect the voltage of the battery 01, and when the voltage of the battery 01 reaches a preset voltage, control the battery 01 to stop charging. The control circuit 02 can control the opening and closing of the charging circuit 05 to control the normal charging and stopping of the charging of the battery 01.

[0048] Specifically, refer to Figure 2 In one embodiment of the utility model, the water mist nasal washer also includes a battery protection circuit 06, which is electrically connected to the charging circuit 05, the control circuit 02, the drive circuit 03 and the battery 01 respectively; the battery protection circuit 06 is used to limit the charging current and the discharging current of the battery 01.

[0049] In this embodiment, refer to Figure 6The control circuit 02 may include a JZ8P2605 chip, which includes a plurality of pins and is electrically connected to the driving circuit 03, the charging circuit 05 and the battery protection circuit 06 through different pins to control the operation of the driving circuit 03, the charging circuit 05 and the battery protection circuit 06. The JZ8P2605 chip is an 8-bit MTP microcontroller with a programmable WDT timer, which can switch between four working modes and can be repeatedly burned 1000 times. The voltage operating range is 1.8V to 5.5V, with a built-in oscillation circuit and multi-channel ADC detection, and has the advantages of low power consumption.

[0050] Specifically, refer to Figure 2 In one embodiment of the utility model, the water mist nasal washer also includes a key circuit 07, which is electrically connected to the control circuit 02 and the battery 01 respectively; the key circuit 07 is used to input a control signal; the control circuit 02 is also used to receive the control signal and work according to the control signal.

[0051] In this embodiment, the key circuit 07 includes a switch button and a mode selection button. When the user presses one of the buttons, the key circuit 07 detects the state change of the button. The key circuit 07 converts the detected button state change into a logic signal and generates a corresponding control signal. Each button usually corresponds to a specific control signal. For example, the switch button can generate an "on / off" control signal, and the mode selection button can generate different mode selection control signals. The key circuit 07 transmits the generated control signal to the control circuit 02. The control circuit 02 can receive, process and parse the received control signal, and perform corresponding operations according to the received control signal. For example, when the "on / off" control signal is received, the control circuit 02 can turn on or off the power of the water mist nasal wash; when the mode selection control signal is received, the control circuit 02 can switch different working modes.

[0052] Specifically, refer to Figure 2 In one embodiment of the utility model, the water mist nasal washer also includes an indicator light circuit 08, and the indicator light circuit 08 is electrically connected to the control circuit 02 and the battery 01 respectively; the control circuit 02 is also used to control the operation of the indicator light circuit 08 according to the control signal.

[0053] In this embodiment, the indicator light circuit 08 may include a plurality of LED lights, which may emit light of different colors to indicate different working states. For example, the indicator light circuit 08 may include a first light emitting diode, a second light emitting diode, a third light emitting diode, and a fourth light emitting diode. Among them, the first light emitting diode may correspond to the "on / off" of the electric nasal washer, and the second light emitting diode, the third light emitting diode, and the fourth light emitting diode may correspond to the three working modes of the electric nasal washer, respectively. In this embodiment, the power consumption of using four light emitting diodes is relatively small.

[0054] Specifically, refer to Figure 3 and Figure 6 In one embodiment of the present utility model, the charging circuit 05 includes an XC3101 chip U1.

[0055] In this embodiment, when an external charger is connected, the JZ8P2605 chip receives a charging signal and can output a high level to turn on the enable terminal of the XC3101 chip U1 to start charging the battery 01. When it is detected that the voltage of the battery 01 reaches the preset voltage, the JZ8P2605 chip outputs a low level to control the XC3101 chip U1 to stop charging the battery 01. In this embodiment, the XC3101 chip U1 has constant current, constant voltage and linear charging functions. For example, the charging current can be set to 1A, and when the charging current drops to 0.1A, the charging is automatically terminated.

[0056] Specifically, refer to Figure 3 In one embodiment of the utility model, the charging circuit 05 further includes a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a first capacitor C1, a second capacitor C2, a third capacitor C3, a fuse F and a transient voltage suppressor TVS;

[0057] Among them, one end of the fuse F is electrically connected to the positive electrode of the external power supply voltage; the other end of the fuse F, the negative electrode of the transient voltage suppression tube TVS, one end of the first capacitor C1, one end of the first resistor R1, one end of the third resistor R3, and one end of the second capacitor C2 are electrically connected to the VCC pin of the XC3101 chip U1; the positive electrode of the transient voltage suppression tube TVS, the other end of the first capacitor C1, one end of the second resistor R2, one end of the fourth resistor R4, the other end of the second capacitor C2, the GND pin of the XC3101 chip U1, one end of the fifth resistor R5, and the GND pin of the third capacitor C3 One end is grounded to the negative pole of the external power supply voltage; the other end of the first resistor R1 and the other end of the second resistor R2 are electrically connected to the control circuit 02; the other end of the third resistor R3, the other end of the fourth resistor R4, and the CE pin of the XC3101 chip U1 are electrically connected to the control circuit 02; the STDBY pin of the XC3101 chip U1 is electrically connected to the control circuit 02; the PROG pin of the XC3101 chip U1 is electrically connected to the other end of the fifth resistor R5; the other end of the third capacitor C3 and the BAT pin of the XC3101 chip U1 are connected to the output end of the charging circuit 05.

[0058] In this embodiment, the GND1 pin, GND2 pin and TEMP pin of the XC3101 chip U1 are all grounded. When charging is turned on, the external power supply is divided by the first resistor R1 and the second resistor R2, and the charging signal is given to the JZ8P2605 chip through the CHARG_DET terminal. The JZ8P2605 chip outputs a high level and inputs it to the CE pin of the XC3101 chip U1 through the CHARGE_OFF terminal to start charging the battery 01. The XC3101 chip U1 can convert the input power supply voltage into a charging voltage suitable for charging the battery 01, and output it to the battery 01 for charging through the output terminal of the charging circuit 05. During the charging process, the transient voltage suppression tube TVS can suppress the surge of the external power supply voltage, the third capacitor C3 can maintain the stability of the charging voltage output, and the charging current can be adjusted by setting the resistance value of the fifth resistor R5 connected to the PROG pin. The fuse F can be blown when the current input from the external power supply is too large to protect the safety of the XC3101 chip U1 and the battery 01. When the battery is fully charged, the JZ8P2605 chip detects the battery voltage through the STDBY terminal to reach the preset full-charge voltage value, and then outputs a low level through the CHARGE_OFF terminal and inputs it to the CE pin of the XC3101 chip U1 to turn off the charging of battery 01.

[0059] Specifically, refer to Figure 4 In one embodiment of the utility model, the driving circuit 03 includes a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, a ninth resistor R9, a tenth resistor R10, a fourth capacitor C4, a fifth capacitor C5, a sixth capacitor C6, a seventh capacitor C7, a first NMOS transistor Q1, a second NMOS transistor Q2, a transformer T, a diode D and a driving motor M;

[0060] Among them, one end of the fourth capacitor C4 and one end of the sixth resistor R6 are electrically connected to the control circuit 02; the other end of the sixth resistor R6, one end of the seventh resistor R7, the source of the first NMOS tube Q1 and the source of the second NMOS tube Q2 are electrically connected; the other end of the fourth capacitor C4, the other end of the seventh capacitor C7, and one end of the tenth resistor R10 are grounded; the other end of the tenth resistor R10, one end of the ninth resistor R9, the gate of the first NMOS tube Q1 and the gate of the second NMOS tube Q2 are electrically connected; the other end of the ninth resistor R9 is electrically connected to the control circuit 02; the drain of the first NMOS tube Q1, the drain of the second NMOS tube Q2 The drain of tube Q2 and one end of the eighth resistor R8 are electrically connected to the first end of the secondary coil of the transformer T; the other end of the eighth resistor R8, the positive electrode of the first diode D, one end of the drive motor M, and one end of the fifth capacitor C5 are electrically connected to the second end of the secondary coil of the transformer T; the other end of the fifth capacitor C5, the other end of the drive motor M, the negative electrode of the first diode D, the first end of the primary coil of the transformer T, the second end of the primary coil of the transformer T, one end of the sixth capacitor C6, and one end of the seventh capacitor C7 are electrically connected to the power input end of the drive circuit 03; the other end of the sixth capacitor C6 and the other end of the seventh capacitor C7 are grounded.

[0061] In this embodiment, the drive circuit 03 is connected to the JZ8P2605 chip via the MOTOR terminal. The drive circuit 03 is connected to the JZ8P2605 chip via the AD terminal. The JZ8P2605 chip controls the opening and closing of the drive circuit 03 by detecting the current value fed back from the AD terminal. Once the current value fed back from the AD terminal exceeds the preset current value, the drive circuit 03 will be controlled to be closed, which plays a protective role. In this embodiment, the transformer T can transform the power input voltage into a voltage suitable for driving the drive motor M. Among them, when the power input voltage passes through the primary coil, the transformer T will transform it into a voltage suitable for driving the drive motor M according to different turns ratios and output it through the secondary coil. Due to the presence of the transformer T, other components in the circuit (such as capacitors, diodes D, resistors, etc.) can obtain a stable operating voltage, ensuring the normal operation of the circuit. In addition, the transformer T can also isolate the voltages at both ends of the drive motor M, thereby improving the safety and reliability of the circuit, and can effectively suppress noise and interference during the operation of the motor. In this embodiment, when the JZ8P2605 chip inputs a high level, the first NMOS tube Q1 and the second NMOS tube Q2 are turned on, and the drive motor M starts to work. When the JZ8P2605 chip inputs a low level, the first NMOS tube Q1 and the second NMOS tube Q2 are turned off, and the drive motor M stops working. When the drive motor M is blocked, the abnormal current can be output to the JZ8P2605 chip through the sixth resistor R6, and the JZ8P2605 chip can control the drive circuit 03 to be turned off.

[0062] In this embodiment, the JZ8P2605 chip can control the voltage at both ends of the drive motor M to change by outputting PWM signals with different duty cycles, thereby controlling the speed of the drive motor M to change. The larger the duty cycle, the larger the average voltage at both ends of the drive motor M, and the higher the speed. The smaller the duty cycle, the smaller the average voltage at both ends of the drive motor M, and the lower the speed. By changing the duty cycle of the PWM signal, the average voltage at both ends of the drive motor M can be changed, thereby enabling the drive motor to operate at different speeds.

[0063] Specifically, refer to Figure 5 and Figure 6 In one embodiment of the present invention, the battery protection circuit 06 includes an XB8886A chip U2.

[0064] It should be noted that the XB8886A chip U2 can control the on / off state between the power supply terminal of the battery protection circuit 06 and the battery 01 by controlling the internal field effect transistor EFT.

[0065] In this embodiment, the XB8886A chip U2 has overcharge protection, over-discharge protection and overcurrent protection functions. When the battery voltage is higher than the first preset voltage value during charging, the XB8886A chip U2 can control the internal field effect transistor EFT to turn off to stop charging; when the voltage of the battery 01 drops below the second preset voltage value during discharge under normal conditions, the XB8886A chip U2 can control the field effect transistor FET to turn off to stop discharging; when the discharge current is higher than the preset current value, the XB8886A chip U2 can control the field effect transistor FET to turn off to stop discharging. For example, the JZ8P2605 chip can detect whether the charging voltage of the battery 01 exceeds 4.2V, whether the discharge voltage of the battery 01 exceeds 2.4V, or whether the charging current of the battery 01 reaches the preset current value through the XB8886A chip U2, and control the field effect transistor FET to turn off when the battery 01 is abnormally charged / discharged to disconnect the charging / discharging of the battery 01.

[0066] Specifically, refer to Figure 6 In one embodiment of the present utility model, the battery protection circuit 06 further includes an eighth capacitor C8, an eleventh resistor R11 and a twelfth resistor R12;

[0067] Among them, the power supply end of the battery protection circuit 06, the positive electrode of the battery 01 are connected to one end of the twelfth resistor R12; the other end of the twelfth resistor R12 and one end of the eighth capacitor C8 are electrically connected to the VDD pin of the XB8886A chip U2; the other end of the eighth capacitor C8, the GND pin of the XB8886A chip U2, and the EPAD pin of the XB8886A chip U2 are electrically connected to the negative electrode of the battery 01; the VM pin of the XB8886A chip U2 and the other end of the eleventh resistor R11 are grounded.

[0068] In this embodiment, the VM1 pin, VM2 pin, VM3 pin and VM4 pin of the XB8886A chip U2 are all grounded, and the GND1 pin, GND2 pin, GND3 pin and EPAD pin of the XB8886A chip U2 are all grounded via the eleventh resistor R11. Among them, the XB8886A chip U2 can detect the abnormal charging / discharging of the battery 01, and control the internal field effect transistor to turn off when the battery 01 is abnormally charged / discharged, so as to protect the battery 01 from being damaged.

[0069] The above description is only an optional embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A water mist nasal washer, characterized in that: include: Battery; A nasal washing assembly, the nasal washing assembly comprising a nozzle and a water tank; the nozzle is connected to the water tank pipe; A driving circuit, the driving circuit is electrically connected to the battery; the driving circuit is also physically connected to the nasal washing component; the driving circuit is used to drive the nasal washing component to work; A control circuit, wherein the control circuit is electrically connected to the battery and the drive circuit respectively; the control circuit is used to control the operation of the drive circuit.

2. The water mist nasal washer according to claim 1, characterized in that: The water mist nasal washer also includes a charging circuit; the charging circuit is electrically connected to the external power supply voltage, the control circuit and the battery respectively; the charging circuit is used to manage the charging of the battery; the control circuit is also used to control the operation of the charging circuit.

3. The water mist nasal washer according to claim 2, characterized in that: The water mist nasal washer also includes a battery protection circuit, which is electrically connected to the charging circuit, the control circuit, the drive circuit and the battery respectively; the battery protection circuit is used to limit the charging current and the discharging current of the battery.

4. The water mist nasal washer according to claim 1, characterized in that: The water mist nasal washer also includes a key circuit, which is electrically connected to the control circuit and the battery respectively; the key circuit is used to input a control signal; the control circuit is also used to receive the control signal and work according to the control signal.

5. The water mist nasal washer according to claim 1, characterized in that: The water mist nasal washer also includes an indicator light circuit, which is electrically connected to the control circuit and the battery respectively; the control circuit is also used to control the operation of the indicator light circuit.

6. The water mist nasal washer according to claim 2, characterized in that: The charging circuit includes an XC3101 chip.

7. The water mist nasal washer according to claim 6, characterized in that: The charging circuit further includes a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a first capacitor, a second capacitor, a third capacitor, a fuse and a transient voltage suppression tube; Among them, one end of the fuse is electrically connected to the positive electrode of the external power supply voltage; the other end of the fuse, the negative electrode of the transient voltage suppression tube, one end of the first capacitor, one end of the first resistor, one end of the third resistor, and one end of the second capacitor are electrically connected to the VCC pin of the XC3101 chip; the positive electrode of the transient voltage suppression tube, the other end of the first capacitor, one end of the second resistor, one end of the fourth resistor, the other end of the second capacitor, the GND pin of the XC3101 chip, one end of the fifth resistor, and the GND pin of the third capacitor One end is grounded to the negative pole of the external power supply voltage; the other end of the first resistor and the other end of the second resistor are electrically connected to the control circuit; the other end of the third resistor, the other end of the fourth resistor, and the CE pin of the XC3101 chip are electrically connected to the control circuit; the STDBY pin of the XC3101 chip is electrically connected to the control circuit; the PROG pin of the XC3101 chip is electrically connected to the other end of the fifth resistor; the other end of the third capacitor and the BAT pin of the XC3101 chip are connected to the output end of the charging circuit.

8. The water mist nasal washer according to claim 1, characterized in that: The driving circuit includes a sixth resistor, a seventh resistor, an eighth resistor, a ninth resistor, a tenth resistor, a fourth capacitor, a fifth capacitor, a sixth capacitor, a seventh capacitor, a first NMOS transistor, a second NMOS transistor, a transformer, a diode and a driving motor; Among them, one end of the fourth capacitor and one end of the sixth resistor are electrically connected to the control circuit; the other end of the sixth resistor, one end of the seventh resistor, the source of the first NMOS tube and the source of the second NMOS tube are electrically connected; the other end of the fourth capacitor, the other end of the seventh capacitor, and one end of the tenth resistor are grounded; the other end of the tenth resistor, one end of the ninth resistor, the gate of the first NMOS tube and the gate of the second NMOS tube are electrically connected; the other end of the ninth resistor is electrically connected to the control circuit; the drain of the first NMOS tube, the drain of the second NMOS tube, and one end of the eighth resistor are electrically connected to the first end of the secondary coil of the transformer; the other end of the eighth resistor, the positive electrode of the diode, one end of the drive motor, and one end of the fifth capacitor are electrically connected to the second end of the secondary coil of the transformer; the other end of the fifth capacitor, the other end of the drive motor, the negative electrode of the diode, the first end of the primary coil of the transformer, the second end of the primary coil of the transformer, one end of the sixth capacitor, and one end of the seventh capacitor are electrically connected to the power input end of the drive circuit; the other end of the sixth capacitor and the other end of the seventh capacitor are grounded.

9. The water mist nasal washer according to claim 3, characterized in that: The battery protection circuit includes an XB8886A chip.

10. The water mist nasal washer according to claim 9, characterized in that: The battery protection circuit further includes an eighth capacitor, an eleventh resistor and a twelfth resistor; Among them, the power supply end of the battery protection circuit and the positive electrode of the battery are connected to one end of the twelfth resistor; the other end of the twelfth resistor and one end of the eighth capacitor are electrically connected to the VDD pin of the XB8886A chip; the other end of the eighth capacitor, the GND pin of the XB8886A chip, and the EPAD pin of the XB8886A chip are electrically connected to the negative electrode of the battery; the VM pin of the XB8886A chip and the other end of the eleventh resistor are grounded.

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