Nano water ion deodorizing cat litter box

Abstract

The utility model discloses a nanometer water ion deodorization cat litter basin and a method, the nanometer water ion deodorization cat litter basin comprises a basin body, a shell, a motion detection device and an air purification assembly, the shell is installed above the basin body, a cavity is formed by the shell and the basin body, and the air purification assembly comprises an exhaust device and a nanometer water ion device. The motion detection device, the exhaust device and the nano water ion device are all arranged on the shell, the nano water ion device is used for deodorizing the cavity, the exhaust device is used for blowing nano water ions generated by the nano water ion device to the cavity, and the motion detection device is used for detecting the motion state of a human body or an animal. According to the embodiment of the utility model, the motion detection device is arranged on the upper shell, so that the cat litter basin can identify the motion state of a human body or a cat, and when a user or the cat is detected to approach, the nano water ion device and the exhaust device can automatically stop working, so that the influence of high-concentration nano water ions on the health of people or pets is avoided, and the health of people or pets is improved. And the safety of users and pets is ensured.

Description

TECHNICAL FIELD

[0001] The utility model belongs to pet technology field, concretely relates to a kind of nanometer water ion deodorization cat litter basin. BACKGROUND

[0002] In modern family, cat litter basin is indispensable in the daily life of cat, is widely used in pet feeding, to improve the use convenience of cat litter basin and keep environment fresh, many cat litter basin designs are added air purification device, for strengthening the air cleaning efficiency of cat litter basin.

[0003] However, the air purification device used in the cat litter basin in the prior art often contains nanometer water ion electrolysis device, and exposure to high concentration of nanometer water ion environment can affect the health of user and pet, therefore, a cat litter basin capable of controlling the start and stop of nanometer water ion device is needed, which can ensure the deodorizing effect while avoiding the influence of high concentration of nanometer water ion on the health of human or pet. SUMMARY

[0004] To solve the problems existing in the prior art, the utility model provides a kind of nanometer water ion deodorization cat litter basin, including basin body, shell, motion detection device and air purification assembly, the shell is installed above the basin body and forms cavity with the basin body, the air purification assembly includes exhaust device and nanometer water ion device, the motion detection device, exhaust device and nanometer water ion device are all arranged on the shell, the nanometer water ion device is used to deodorize the cavity, the exhaust device is used to blow nanometer water ion generated by the nanometer water ion device to the cavity, and the motion detection device is used to detect the motion state of human body or animal.

[0005] Further, the shell is also provided with equipment interface, key and vent, the shell is provided with circuit board, the circuit board includes main control module, power module, nanometer water ion drive module, exhaust drive module and motion detection drive module, the key is connected with the main control module, for adjusting fan speed and air purification assembly start / stop, the power module is used to power nanometer water ion drive module, exhaust drive module and motion detection drive module, the nanometer water ion drive module is used to drive nanometer water ion device, the exhaust drive module is used to drive exhaust device, and the motion detection drive module is used to drive motion detection device, and the equipment interface is used to connect external DC power supply.

[0006] Further, the nano water ion device comprises a nano water ion emitting frame, the nano water ion emitting frame comprises a base, a plurality of columns, a semiconductor refrigeration piece, a high-voltage discharge part and a condensing needle, the semiconductor refrigeration piece is arranged below the base, a plurality of the columns support the high-voltage discharge part above the base, the condensing needle penetrates the middle part of the base and is in contact with the semiconductor refrigeration piece, the middle part of the high-voltage discharge part is hollow, and the upper end of the condensing needle is arranged below the hollow.

[0007] Further, the nano water ion device comprises a nano water ion shell, a voltage reduction circuit and an inverter voltage increase circuit, the nano water ion shell is provided with a separation part to separate the internal space into a voltage reduction module containing area and an inverter voltage increase module containing area; the voltage reduction circuit is arranged in the voltage reduction module containing area, and the inverter voltage increase circuit is arranged in the inverter voltage increase module containing area, the voltage reduction circuit is used to provide a low-voltage direct-current control power supply for the semiconductor refrigeration piece of the purifier, the inverter voltage increase circuit is used to provide a high-voltage alternating-current control power supply for the high-voltage discharge part of the purifier, and the voltage reduction circuit and the voltage increase module have electromagnetic isolation.

[0008] Further, the motion detection device comprises a motion detection sensor, and the motion detection driving module comprises a motion detection control unit, the motion detection sensor is used to detect the movement of an object and send a movement signal, the motion detection control unit is used to receive the movement signal of the motion detection sensor and feed back a control signal to the main control module, a power supply positive terminal of the motion detection sensor is connected to a power supply end of the motion detection control unit, a power supply negative terminal of the motion detection sensor is grounded, and a signal output end of the motion detection sensor is connected to a signal input end of the motion detection control unit.

[0009] Further, the power module comprises a filter unit, a PIR power supply unit, a main control power supply unit and a DC-DC voltage boosting unit, the filter unit is used for filtering the direct current 5V input by the device interface, the DC-DC voltage boosting unit is used for boosting the direct current 5V output by the filter unit to +12V, the PIR power supply unit is used for providing the first direct current power +3.3V for the motion detection driving module, the main control power supply unit is used for providing the second direct current power VDD for the main control module, and the DC-DC voltage boosting unit is used for providing the third direct current power +12V for the PIR power supply unit, the nano water ion driving module and the exhaust driving module respectively, the PIR power supply unit comprises a diode D3, a capacitor C7, a capacitor C8, a capacitor C9, a capacitor C10 and a voltage stabilizer U3, the third direct current power +12V is connected to the anode of the diode D3, the cathode of the diode D3 is connected to one end of the capacitor C7, one end of the capacitor C8 and a first end of the voltage stabilizer U3, a second end of the voltage stabilizer U3 is connected to one end of the capacitor C9, one end of the capacitor C10 and an output end, a third end of the voltage stabilizer U3, the other end of the capacitor C7, the other end of the capacitor C8, the other end of the capacitor C9, the other end of the capacitor C10 are connected to a ground end, and the output end is used for providing the first direct current power +3.3V for the motion detection driving module.

[0010] Further, the exhaust driving module comprises a low-speed driving unit, a medium-speed driving unit, a high-speed driving unit, a diode D1 and a capacitor C1, the main control module is connected to the low-speed driving unit, the medium-speed driving unit and the high-speed driving unit respectively, the low-speed driving unit, the medium-speed driving unit and the high-speed driving unit are connected to the third direct current power +12V through the anode of the diode D1 and are connected to the third direct current power +12V and the exhaust device through the capacitor C1.

[0011] Further, the shell comprises an upper shell and a lower shell, the upper shell and the lower shell form an inlet and outlet, the upper shell is provided with a shutter, the shutter is arranged at the inlet and outlet, the upper shell is further provided with an air purification assembly accommodating area and a motion detection device accommodating area, the air purification assembly is arranged in the air purification assembly accommodating area, and the motion detection device is arranged in the motion detection device accommodating area.

[0012] Further, it also comprises a sand collecting device, the sand collecting device comprises an upper cover and a bottom shell, the upper cover and the bottom shell are detachably connected, and the upper cover is provided with a first sand collecting net which is integrally formed on the upper cover;

[0013] The inlet and outlet are provided with a second sand collecting net which is integrally formed on the lower shell.

[0014] Further, the upper shell is rotatably connected to the lower shell away from the inlet and outlet, and the upper shell is detachably connected to the lower shell along the length direction of two sides.

[0015] Compared with the prior art, the utility model has the following advantages:

[0016] By being equipped with the motion detection device on the upper shell, the litter box can recognize the motion state of the human body or the cat, and when detecting that the user or the cat approaches, the nano water ion device and the exhaust device will automatically stop working, thereby avoiding the influence of high concentration of nano water ions on the health of the human or the pet, and ensuring the safety of the user and the pet. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is the explosion schematic view of the utility model nano water ion deodorization litter box;

[0018] Figure 2 is the structure schematic view of the utility model nano water ion deodorization litter box;

[0019] Figure 3 is the partial structure schematic view of the utility model nano water ion deodorization litter box

[0020] Figure 4 is the top view of the upper shell of the utility model;

[0021] Figure 5 is the top view of the utility model nano water ion emitter;

[0022] Figure 6 is the A-A cross section schematic view of the utility model nano water ion emitter;

[0023] Figure 7 is the structure schematic view of the utility model nano water ion device embodiment;

[0024] Figure 8 is the circuit principle block diagram of the utility model main control module, power module, nano water ion drive module, exhaust drive module and motion detection drive module;

[0025] Figure 9 is the circuit principle diagram of the utility model filter unit;

[0026] Figure 10 is the circuit principle diagram of the utility model DC-DC boost unit;

[0027] Figure 11 is the utility model main control power supply unit circuit principle diagram;

[0028] Figure 12 is the utility model PIR power supply unit circuit principle diagram;

[0029] Figure 13 is the motion detection driving module circuit principle diagram of the utility model;

[0030] Figure 14 is the exhaust driving module circuit principle diagram of the utility model;

[0031] Figure 15 is the nanometer water ion driving module circuit principle diagram of the utility model;

[0032] Figure 16 is the voltage reduction circuit principle diagram of the utility model;

[0033] Figure 17 is the inverter boost circuit principle diagram of the utility model;

[0034] Figure 18 is the equipment interface circuit principle diagram of the utility model;

[0035] Figure 19 is the main control module circuit principle diagram of the utility model.

[0036] Reference signs:

[0037] 1, basin body;2, shell;21, upper shell;22, lower shell;23, equipment interface;24, button;25, air vent;26, protection bottom plate;27, blocking door;3, motion detection device;31, motion detection sensor;4, air purification assembly;41, exhaust device;42, nanometer water ion device;421, nanometer water ion shell;4211, partition;422, voltage reduction module containing area;423, inverter boost module containing area;5, cavity;6, sand collecting device;61, upper cover;62, bottom shell;63, first sand collecting net;64, second sand collecting net;8, inlet and outlet;9, nanometer water ion emitting frame;91, base;92, stand column;93, semiconductor refrigeration piece;94, positive terminal;95, negative terminal;96, high voltage discharge part;97, hollow;98, condensing needle;99, high voltage discharge electrode;10, circuit board;

[0038] 100, main control module;200, power module;210, filter unit;220, PIR power supply unit;230, main control power supply unit;240, DC-DC boost unit;300, nanometer water ion driving module;400, exhaust driving module;410, low-speed driving unit;420, medium-speed driving unit;430, high-speed driving unit;500, motion detection driving module;510, motion detection control unit;600, voltage reduction circuit;700, inverter boost circuit;710, voltage doubling unit;720, matching resistance unit. DETAILED DESCRIPTION

[0039] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of the present application.

[0040] The terms "first", "second", "third" in the present application are only for descriptive purpose, and cannot be understood as indicating or implying relative importance or implicitly indicating the number or sequence of the technical features indicated. All directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative position relationship or movement condition between components, etc. in a certain posture (as shown in the drawings); it should be noted that when a component is referred to as "fixed to", "arranged on", "connected to" another component, it can be directly on the other component or there can be a middle component. When a component is considered as "connected" to another component, it can be directly connected to the other component, or there can be one or more middle components between them. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for illustrative purposes, and do not represent the only implementation.

[0041] With reference to Figures 1-4 The embodiment of the present application provides a nano water ion odor removal cat litter basin, which comprises a basin body 1, a shell 2, a motion detection device 3 and an air purification assembly 4, the shell 2 is installed above the basin body 1 and forms a cavity 5 with the basin body 1, the air purification assembly 4 comprises an exhaust device 41 and a nano water ion device 42, the motion detection device 3, the exhaust device 41 and the nano water ion device 42 are all arranged on the shell 2, the nano water ion device 42 is used for removing odor from the cavity 5, the exhaust device 41 is used for blowing the nano water ions generated by the nano water ion device 42 to the cavity 5, and the motion detection device 3 is used for detecting the motion state of a human body or an animal. The basin body 1 is used for containing cat litter or objects similar to cat litter.

[0042] In the embodiment, the motion detection device is arranged on the upper shell, so that the cat litter basin can recognize the motion state of a human body or a cat, when it is detected that a user or a cat approaches, the nano water ion device and the exhaust device will automatically stop working, thereby avoiding the health hazards possibly caused by long-time operation of the nano water ion equipment, effectively reducing the concentration of nano water ions in the air, and ensuring the safety of the user and the pet.

[0043] In some embodiments, the basin body 1 is made of stainless steel.

[0044] In some embodiments, the shell 2 is composed of an upper shell 21 and a lower shell 22, which together form the inlet and outlet 8, not only simplifying the assembly process, but also enhancing the overall stability and sealing performance; the upper shell 21 is equipped with a baffle door 27 installed at the inlet and outlet 8, effectively forming a closed space to prevent further odor dispersion; the baffle door 27 is rotatably connected to the upper shell 21 through a connecting member, which can be a pin shaft, a wedge structure, or a limiting hook, or other connecting members with similar functions.

[0045] In some embodiments, the upper shell 21 also has an air purification assembly accommodation area 420, a motion detection device accommodation area 500, and a ventilation opening 25, the air purification assembly 4 is arranged in the air purification assembly accommodation area 420, and the motion detection device 3 is arranged in the motion detection device accommodation area 500.

[0046] Further, a protective bottom plate 26 is provided, which is shaped to match the bottom contour of the air purification assembly accommodation area 420 and the motion detection device accommodation area 500, so as to completely cover the bottom of the basin 1. The protective bottom plate 26 is used to support the motion detection device 3 and the air purification assembly 4, and to protect them from interference by debris or from a humid environment.

[0047] Further, the protective bottom plate 26 is provided with a ventilation filter screen 25, which is located opposite the ventilation opening 25.

[0048] In some embodiments, the protective bottom plate 26 is also provided with reinforcing ribs to enhance the overall compression resistance and deformation resistance.

[0049] In some embodiments, a sand collecting device 6 is also included, which can further collect cat litter carried out of the litter box by the pet. The sand collecting device 6 includes an upper cover 61 and a bottom shell 62, which are detachably connected. The upper cover 61 is provided with a first sand collecting screen 63 integrally formed on the top of the upper cover 61, and the inlet and outlet 8 is provided with a second sand collecting screen 64 integrally formed on the bottom shell 62. The detachable connection of the upper cover and the bottom shell facilitates cleaning and maintenance, and the first and second sand collecting screens effectively collect cat litter carried out by the pet, reducing scattering and improving the convenience of use and the cleaning efficiency of the device.

[0050] Reference Figures 1-4In some embodiments, the upper shell 21 is rotationally connected to the lower shell 22 away from the inlet and outlet 8, and detachably connected to the lower shell 22 along the length direction of the upper shell 21. The upper shell 21 is further provided with spring push buckles. The upper shell 21 and the lower shell 22 are separated by the spring push buckles. When the user needs to clean the excrement inside the cat litter box, the user only needs to press the spring push buckles on both sides to separate the upper shell 21 from the lower shell 22, so that the excrement can be easily cleaned. The convenient separation of the upper shell and the lower shell is achieved by rotational connection and spring push buckles. The user can easily disassemble and clean, which improves the cleaning efficiency and use convenience. The design of the spring push buckles makes the operation simple and fast, and reduces the cleaning time.

[0051] Referring to Figures 1-4 and Figure 8 In some embodiments, the housing 2 is provided with a circuit board 10, a device interface 23 and a button 24. The circuit board 10 includes a main control module 100, a power supply module 200, a nano water ion driving module 300, an exhaust driving module 400 and a motion detection driving module 500. The button 24 is connected to the main control module 100 and used to adjust the fan speed and the start / stop of the air purification assembly. The power supply module 200 is used to supply power to the nano water ion driving module 300, the exhaust driving module 400 and the motion detection driving module 500. The nano water ion driving module 300 is used to drive the nano water ion device 42. The exhaust driving module 400 is used to drive the exhaust device 41. The motion detection driving module 500 is used to drive the motion detection device 3. The device interface 23 is used to connect an external DC power supply.

[0052] Further, the power supply module 200 includes a filter unit 210, a PIR power supply unit 220, a main control power supply unit 230 and a DC-DC boost unit 240. The filter unit 210 is used to filter the DC 5V input by the device interface 23 and output a pure voltage VIN. The DC-DC boost unit 240 is used to boost the DC 5V output by the filter unit 210 to +12V. The PIR power supply unit 220 is used to provide a first DC power supply +3.3V for the motion detection driving module 500. The main control power supply unit 230 is used to provide a second DC power supply VDD for the main control module 100. The DC-DC boost unit 240 is used to provide a third DC power supply +12V for the PIR power supply unit 220, the nano water ion driving module 300 and the exhaust driving module 400, respectively. The filter unit of the power supply module provides a stable voltage to ensure the reliability of each module. The DC-DC boost unit efficiently converts the voltage to meet the needs of different modules, improve the stability of the system and the energy efficiency. The PIR power supply unit and the main control power supply unit independently supply power to ensure efficient operation of the device. The user can adjust the fan speed and the air purification assembly through the button, which is convenient to operate.

[0053] Referring to Figure 9In some embodiments, the filter unit 210 includes an inductor L2, a capacitor C21 and a capacitor C23, one end of L2 is connected to a direct current 5V, the other end is connected to the common node of capacitor C21 and capacitor C23, and is also connected to the output end VIN, one end of capacitor C21 is connected to the common node of inductor L2, and the other end is grounded, and this common node is the output end; one end of capacitor C23 is connected to the common node of L2, and the other end is grounded, and this common node is the output end; inductor L2 is responsible for transmitting direct current 5V to output end VIN, while C21 and C23 are connected in parallel to ground as filter capacitors to filter out the ripple of inductor output, ensuring the stability and purity of output voltage VIN.

[0054] Referring to Figure 10 In some embodiments, the DC-DC boost unit 240 includes resistors R19, R20, R21, R22, R23, R24, R25, capacitors C11, C12, C13, C14, C15, C16, C17, C18, C19, C20, C22, diode D4, inductor L4, power management unit U5, pin 1 of power management unit U5 is connected to ground through resistor R24, pin 2 GVDD is connected to ground through C19, pin 3 ILIM is grounded through resistor R22 and connected to ground through capacitor C18, pin 4 COMP is connected to ground through resistor R19 and connected to ground in parallel through C15 and C17, pin 0 GND is directly connected to ground, pin 6 FB is connected to output end +12V through voltage dividing resistor R21 and grounded through resistor R20, pin 5 VOUT is grounded through capacitors C11, C12, C14 and C16 respectively, pin 7 SD is connected to pure voltage VIN through resistor R23, pin 8 LX is connected to pure voltage VIN through inductor L4, connected to output end +12V through diode D4 and grounded through resistor R25 and capacitor C20, wherein chip U5 is responsible for controlling the cooperation of peripheral resistors, capacitors and inductors to realize voltage stabilization, the input power is supplied to the circuit through R25 and inductor L1, U5 adjusts the output voltage through feedback pin FB, diode D4 and inductor L1 cooperate to realize energy conversion, and the output voltage is filtered and stably output through C22.

[0055] Referring to Figure 11In some embodiments, the main control power supply unit 230 includes a diode D2, a capacitor C3, a capacitor C4, a capacitor C5, a capacitor C6, and a voltage regulator U2. The third DC power supply +12V is connected to the anode of the diode D2. The cathode of the diode D2 is connected to one end of the capacitor C3, one end of the capacitor C6, and a first end of the voltage regulator U2. A second end of the voltage regulator U2 is connected to one end of the capacitor C5, one end of the capacitor C4, and an output end of the main control power supply unit 230. A third end of the voltage regulator U2, the other end of the capacitor C3, the other end of the capacitor C4, the other end of the capacitor C5, and the other end of the capacitor C6 are connected to a ground end. The output end of the main control power supply unit 230 is used to provide a second DC power supply VDD for the main control module 100.

[0056] Referring to Figure 12 In some embodiments, the PIR power supply unit 220 includes a diode D3, a capacitor C7, a capacitor C8, a capacitor C9, a capacitor C10, and a voltage regulator U3. The third DC power supply +12V is connected to the anode of the diode D3. The cathode of the diode D3 is connected to one end of the capacitor C7, one end of the capacitor C8, and a first end of the voltage regulator U3. A second end of the voltage regulator U3 is connected to one end of the capacitor C9, one end of the capacitor C10, and an output end. A third end of the voltage regulator U3, the other end of the capacitor C7, the other end of the capacitor C8, the other end of the capacitor C9, and the other end of the capacitor C10 are connected to a ground end. The output end is used to provide a first DC power supply +3.3V for the motion detection driving module 500.

[0057] It should be noted that the voltage regulator U2 and the voltage regulator U3 are low dropout linear voltage regulators, which can be AMS117 or other models with similar functions. The first end of the voltage regulator U2 and the voltage regulator U3 is an input end for connecting an input DC power supply. The second end is an output end for outputting a stabilized DC power supply. The third end is a ground end for circuit grounding and is connected to a power supply ground.

[0058] Referring to Figure 12 In some embodiments, the motion detection device 3 includes a motion detection sensor 31, and the motion detection driving module 500 includes a motion detection control unit 510. The motion detection sensor 31 is used to detect the movement of an object and send a movement signal. The motion detection control unit 510 is used to receive the movement signal of the motion detection sensor 31 and feed back a control signal to the main control module 100. The power supply end of the motion detection control unit 510 is connected to the positive power supply end of the motion detection sensor 31. The negative power supply end of the motion detection sensor 31 is grounded. The signal output end of the motion detection sensor 31 is connected to the signal input end of the motion detection control unit 510.

[0059] For example, the first pin of the motion detection control unit 510 is connected to a +3.3V power supply end, the second pin is connected to the second pin of the motion detection sensor 31 for receiving a signal input from the motion detection sensor 31, the third pin is connected to the first pin of the motion detection sensor 31 for providing a power supply required for the operation of the motion detection sensor 31, the fourth pin is connected to a PULSE port for adjusting the sensitivity of the motion detection sensor 31, the fifth pin is connected to a VOUT port for outputting a control signal with the function of triggering an output high level for 1 second and blocking a low level for 1 second, and the eighth pin is grounded to ensure the normal operation of the sensor and the stable transmission of the signal.

[0060] Referring to Figure 14 In some embodiments, the exhaust driving module 400 comprises a low-speed driving unit 410, a medium-speed driving unit 420, a high-speed driving unit 430, a diode D1, and a capacitor C1, the master control module 100 is connected to the low-speed driving unit 410, the medium-speed driving unit 420, and the high-speed driving unit 430 respectively, and the low-speed driving unit 410, the medium-speed driving unit 420, and the high-speed driving unit 430 are connected to a third direct current power supply +12V through the anode of the diode D1 and are connected to the third direct current power supply +12V and the exhaust device 41 through the capacitor C1.

[0061] For example, the low-speed driving unit 410 comprises a switch tube Q1, a resistor R9, a resistor R5, and a resistor R1, the fifth pin LO of the master control module 100 is connected to the gate of the switch tube Q1 through the resistor R9 and is connected to the source level of the switch tube Q1 through the resistor R9 and the resistor R5, and the drain level of the switch tube Q1 is connected to the anode of the diode D1 and one end of the capacitor C1 through the resistor R1.

[0062] Similarly, the medium-speed driving unit 420 and the high-speed driving unit 430 have the same structure as the low-speed driving unit 410, in the medium-speed driving unit 420, the resistor R9 is replaced by a resistor R10, the resistor R5 is replaced by a resistor R6, the resistor R1 is replaced by a resistor R2, and the switch tube Q1 is replaced by a switch tube Q2, and in the high-speed driving unit 430, the resistor R9 is replaced by a resistor R11, the resistor R5 is replaced by a resistor R7, the resistor R1 is replaced by a resistor R3, and the switch tube Q1 is replaced by a switch tube Q3.

[0063] It should be noted that the resistance values of the resistor R1, the resistor R2, and the resistor R3 decrease in turn, and the resistance values of the resistor R1, the resistor R2, and the resistor R3 can be adjusted according to the specific circuit design requirements, and appropriate resistance values are selected according to the size of the driving current, the load characteristics, and the power consumption requirements of the circuit to achieve the best driving performance and energy efficiency.

[0064] It should be noted that the switch tubes involved in the utility model are all NMOS tubes.

[0065] In some embodiments, referring to Figures 5-6 , the nano water ion device comprises a nano water ion emitting frame 9, the nano water ion emitting frame 9 comprises a base 91, four columns 92, a semiconductor refrigeration piece 93, a high-voltage discharge part 96 and a condensation needle 98, the semiconductor refrigeration piece 93 is arranged below the base 91, the four columns 92 support the high-voltage discharge part 96 above the base 91, and the condensation needle 98 penetrates the middle part of the base 91 and is in contact with the semiconductor refrigeration piece 93; when the semiconductor refrigeration piece 93 is supplied with low-voltage direct current, a temperature difference is generated through the Peltier effect, the condensation needle 98 is in contact with the cold end of the semiconductor refrigeration piece 93, and when the temperature of the condensation needle 98 is lower than the dew point temperature, condensed water is generated on the condensation needle 98. The middle part of the high-voltage discharge part 96 has a hollow part 97, and the upper end of the condensation needle 98 is arranged below the hollow part 97; when high-voltage alternating current is supplied between the high-voltage discharge part 96 and the condensation needle 98, the condensed water generated on the condensation needle 98 is ionized into nano water ions.

[0066] In some embodiments, referring to Figure 7 , the nano water ion device 42 comprises a nano water ion shell 421, a step-down circuit 600 and an inverter step-up circuit 700, the nano water ion shell 421 is provided with a separation part 4211 for separating the internal space into a step-down module accommodating area 422 and an inverter step-up module accommodating area 423; the step-down circuit 600 is arranged in the step-down module accommodating area 422, the inverter step-up circuit 700 is arranged in the inverter step-up module accommodating area 423, the step-down circuit 600 is used for providing low-voltage direct current control power supply for the semiconductor refrigeration piece of the purifier, the inverter step-up circuit 700 is used for providing high-voltage alternating current control power supply for the high-voltage discharge part of the purifier, the step-down circuit 600 and the step-up module 700 have electromagnetic isolation, and the step-down circuit 600 and the step-up module 700 are separated by physical isolation means to avoid electromagnetic interference with each other and improve the stability of the equipment operation.

[0067] Further, the separation part 4211 is made of high-conductivity material. Since the high-conductivity material will generate a large induced current under the action of electromagnetic waves, these currents will weaken the penetration of electromagnetic waves, resulting in the effect of electromagnetic shielding.

[0068] Further, the material of the separation part 4211 is copper or tin.

[0069] Further, the step-down module accommodating area 422 and the inverter step-up module accommodating area 423 are filled with insulating glue, which can enhance the insulation and heat dissipation effect.

[0070] In some embodiments, referring to Figure 15, the nano water ion driving module 300 includes a switch tube Q4, an input port ANCN1, an input port ANCN2, a resistor R52, and a resistor R54, a third pin ANON port of the master control module 100 is connected to the gate of the switch tube Q4 through the resistor R52, and is connected to the source of the switch tube Q4 through the resistor R52 and the resistor R54, the drain of the switch tube Q4 is connected to the first end of the input port ANCN1 and the first end of the input port ANCN2, respectively, and the second end of the input port ANCN1 and the second end of the input port ANCN2 are connected to the third DC power supply +12V.

[0071] For example, referring to Figures 16-17 , the step-down circuit 600 includes a switch module U10, a diode D10, an inductor L10, a resistor R30, a resistor R31, a resistor R32, a resistor R33, a precision voltage regulator D11, a capacitor C30, a capacitor C31, and a capacitor C33, the positive terminal of the input port J1 is connected to the first end of the resistor R31 and the input pin VIN and the enable pin EN of the switch module U10, the switch pin SW of the switch module U10 is connected to the cathode of the diode D10 and the first end of the inductor L10, the capacitor C30 is connected in parallel between the switch pin SW and the bootstrap pin VBST of the switch module U10, the second end of the inductor L10 is connected to the positive terminal of the output port J2 and the first end of the resistor R30, the second end of the resistor R30 is connected to the feedback pin VFB of the switch module U10 and the first end of the resistor R32, the second end of the resistor R32 is connected to the second end of the resistor R31 and the cathode and reference terminal of the precision voltage regulator D11, the negative terminal of the input port J1, the ground pin GND of the switch module U10, the anode of the diode D10, the anode of the precision voltage regulator D11, and the negative terminal of the output port J2 are all grounded, the capacitor C31 is connected in parallel between the positive terminal and the negative terminal of the input port J1, and the capacitor C33 and the resistor R33 are both connected in parallel between the positive terminal and the negative terminal of the output port J2.

[0072] In specific implementation, the input voltage input by the input port J1 can be 5V or 12V, and can also be connected to the third DC power supply +12V or the DC 5V. The switch module U10 can be a synchronous step-down voltage regulator chip, and the model can be TPS564201, or other models of chips with similar functions. The precision voltage regulator D11 can be a precision voltage regulator of TL431 model, or other models of devices with similar functions. The step-down circuit 600 can provide a stable DC voltage output as low as 120mV, and the output current can be 2-2.5A.

[0073] In some embodiments, referring to Figure 12 , the step-down circuit 600 further includes a capacitor C32 connected in parallel between the positive terminal and the negative terminal of the input port J1, which can further filter input interference and stabilize voltage.

[0074] In some embodiments, referring to Figure 12The voltage reduction circuit 600 further comprises a capacitor C34 and a capacitor C35 connected in parallel between the positive terminal and the negative terminal of the output port J2, which can further stabilize the voltage.

[0075] In some embodiments, referring to Figure 13 The inverter lifting module 700 comprises a switch tube Q10, a five-terminal transformer U11, a voltage doubling unit 710, a matching resistance unit 720, a resistor R34, a resistor R35 and a capacitor C36, the same name terminal of the primary side of the five-terminal transformer U11 is connected to the first terminal of the resistor R34, the neutral terminal of the primary side of the five-terminal transformer U11 is connected to the positive electrode of the input port J3, the first terminal of the capacitor C36 and the first terminal of the resistor R35, the collector of the switch tube Q10 is connected to the different name terminal of the primary side of the five-terminal transformer U11, the base of the switch tube Q10 is connected to the second terminal of the resistor R34, the emitter of the switch tube Q10 is connected to the first terminal of the capacitor C36 and the negative electrode of the input port J3, the secondary same name terminal and the different name terminal of the five-terminal transformer U11 are connected to the voltage doubling unit 710, the voltage doubling unit 710 is connected in series with the matching resistance unit 720, the matching resistance unit 720 is connected to the positive electrode of the output port J4, the different name terminal of the secondary side of the five-terminal transformer U11 is further connected to the second terminal of the resistor R35 and the negative terminal of the output port J4; the switch tube Q10 is an NPN transistor. The inverter lifting module 700 of the embodiment of the utility model generates oscillation current through the capacitor C36, the switch tube Q10 and the five-terminal transformer U11, and generates two-stage voltage amplification effect by using the five-terminal transformer U11 and the voltage doubling unit 710, and the output alternating voltage can reach 3KV-5KV, the inverter lifting module 700 has simple structure and can be miniaturized and accommodated in the inverter voltage boosting module accommodation area 423 of the nanometer water ion shell 421.

[0076] In some embodiments, referring to Figure 13 The voltage doubling unit 710 comprises a diode D12, a diode D13, a diode D14, a capacitor C37, a capacitor C38 and a capacitor C39, the anode of the diode D12 is connected to the different name terminal of the secondary side of the five-terminal transformer U11 and the first terminal of the capacitor C38, the cathode of the diode D12 is connected to the anode of the diode D13, the first terminal of the capacitor C36 and the first terminal of the capacitor C37, the cathode of the diode D13 is connected to the anode of the diode D14 and the second terminal of the capacitor C38, the cathode of the diode D14 is connected to the second terminal of the capacitor C37 and the matching resistance unit 720. It should be noted that the voltage doubling unit 710 of the embodiment can realize three times voltage doubling by using three groups of diodes and capacitors, and the number of diodes and capacitors can be increased or decreased in other application examples to realize other voltage doubling ratios.

[0077] In some embodiments, referring to Figure 13 The matching resistance unit 720 comprises the resistor R34 and the resistor R35 connected in series.

[0078] It should be noted that the matching resistance unit 720 of the present embodiment is used to adjust the output current and frequency, and in other application examples, the number of resistances can be increased or decreased to achieve other adjustment effects.

[0079] Referring to Figure 18 In some embodiments, the device interface 23 is a TYPE-C interface, and the VBUS end thereof is used to provide an initial voltage 5V for the filter unit 210.

[0080] Referring to Figure 19 In some embodiments, the main control module 100 includes resistors R15, R17, R16, R14, keys MI, LO, HI, ON, light-emitting diodes MI_LED, LO_LED, HI_LED, and ON_LED, and a main control module 100, a first pin of the main control module 100 is connected to a second DC power supply VDD, a second pin is grounded through the key MI, a third pin is connected to the ANION port, a fourth pin is grounded through the key LO, a fifth pin is connected to the LO port, a sixth pin is connected to the MI port, a seventh pin is connected to the HI port, an eighth pin is grounded through the key HI, a ninth pin is grounded through the key ON, a tenth pin is connected to the VOUT port, an eleventh pin is grounded through the resistor R14 and the light-emitting diode HI_LED, a twelfth pin is grounded through the resistor R12 and the light-emitting diode ON_LED, a thirteenth pin is grounded through the resistor R13 and the light-emitting diode LO_LED, a fourteenth pin is grounded through the resistor R14 and the light-emitting diode MI_LED, a fifteenth pin is connected to the PULSE port, and a sixteenth pin is grounded.

[0081] During the operation of the device, the step-down circuit 600 boosts the input 5V DC power supply to 12V through the DC-DC boost module 240 to provide a stable power supply for the nano water ion device 42 and the exhaust device 41. At the same time, the step-down circuit 600 and the inverter boost circuit 700 are electromagnetically isolated through the high-conductivity material separation part 4211, ensuring that the electromagnetic interference between the modules is effectively shielded, and the stable operation of the device is ensured. The ventilation filter screen 25 on the protection bottom plate 26 corresponds to the ventilation port 25, further filtering impurities and moisture in the air to prevent entering the electronic components, improving the durability and safety of the device. The nano water ion device 42 decomposes water molecules into a large number of nano water ions through the built-in electrolytic water system, and these ions are effectively transported to the exhaust device 41 through the nano water ion driving module 300 on the circuit board 10. The exhaust device 41 is built-in multiple fans, and the user can adjust the fan speed through the key 24 to uniformly blow the generated nano water ions into the cavity 5, rapidly neutralize and decompose the odor molecules generated by the cat litter, and keep the air inside and around the cat litter basin fresh.

[0082] When the cat approaches or enters the litter box, the motion detection device 3 installed on the shell 2 detects the cat's activity state in real time by sensing the cat's heat radiation and motion signals, and the motion detection driving module 500 transmits the detected signals to the main control module 100, and the main control module 100 automatically stops the exhaust device 41 and the nano water ion device 42 in the air purification assembly 4 after receiving the valid motion signals.

[0083] When the cat leaves the litter box, the motion detection driving module 500 sends an opening signal to the main control module 100 after detecting no motion state for a period of time, and the main control module 100 automatically starts the exhaust device 41 and the nano water ion device 42 after receiving the signal, and the period of time is determined according to the actual use.

[0084] In the closing process, the device memorizes the last working gear, so that the next time the device is started, it can restore to the fan speed selected by the user last time, in addition, the user can also manually control the opening and closing of the device through the "ON" button 24, and the LED indicator light on the button 24 can display the running state and fan gear of the current device in real time, and provide intuitive operation feedback.

[0085] The utility model is not limited to the above optional implementation, anyone can draw other various forms of products under the enlightenment of the utility model, but no matter make any change in its shape or structure, any technical scheme falling into the scope defined by the utility model claims falls within the protection scope of the utility model.

Claims

1. A nano water ion deodorizing cat litter basin, characterized in that, The device comprises a basin (1), a shell (2), a motion detection device (3) and an air purification assembly (4), the shell (2) is installed above the basin (1) and forms a cavity (5) with the basin (1), the air purification assembly (4) comprises an exhaust device (41) and a nano water ion device (42), the motion detection device (3), the exhaust device (41) and the nano water ion device (42) are all arranged on the shell (2), the nano water ion device (42) is used for deodorizing the cavity (5), the exhaust device (41) is used for blowing the nano water ions generated by the nano water ion device (42) to the cavity (5), and the motion detection device (3) is used for detecting the motion state of a human body or an animal.

2. The nano water ion deodorizing cat litter basin of claim 1, wherein, The shell (2) is also provided with a device interface (23), a key (24) and a ventilation opening (25), the shell (2) is provided with a circuit board (10), the circuit board (10) comprises a main control module (100), a power module (200), a nano water ion driving module (300), an exhaust driving module (400) and a motion detection driving module (500), the key (24) is connected with the main control module (100) and is used for adjusting the fan rotating speed and the start / stop of the air purification assembly (4), the power module (200) is used for supplying power for the nano water ion driving module (300), the exhaust driving module (400) and the motion detection driving module (500), the nano water ion driving module (300) is used for driving the nano water ion device (42), the exhaust driving module (400) is used for driving the exhaust device (41), the motion detection driving module (500) is used for driving the motion detection device (3), and the device interface (23) is used for connecting an external direct-current power supply.

3. A nano water ion deodorizing cat litter basin according to claim 2, characterized in that, The nano water ion device (42) comprises a nano water ion emitting frame (9), the nano water ion emitting frame (9) comprises a base (91), a plurality of columns (92), a semiconductor refrigerating piece (93), a high-voltage discharge part (96) and a condensing needle (98), the semiconductor refrigerating piece (93) is arranged below the base (91), a plurality of the columns (92) support the high-voltage discharge part (96) above the base (91), the condensing needle (98) penetrates the middle part of the base (91) and is in contact with the semiconductor refrigerating piece (93), the middle part of the high-voltage discharge part (96) has a hollow (97), and the upper end of the condensing needle (98) is arranged below the hollow (97).

4. The nano water ion deodorizing cat litter basin of claim 2, wherein, The nano water ion device (42) comprises a nano water ion shell (421), a voltage reduction circuit (600) and an inverter voltage increase circuit (700), the nano water ion shell (421) is provided with a separation part (4211) to separate the internal space into a voltage reduction module containing area (422) and an inverter voltage increase module containing area (423); the voltage reduction circuit (600) is arranged in the voltage reduction module containing area (422), the inverter voltage increase circuit (700) is arranged in the inverter voltage increase module containing area (423), the voltage reduction circuit (600) is used for providing a low-voltage direct-current control power supply for a semiconductor refrigeration part (93) of the purifier, the inverter voltage increase circuit (700) is used for providing a high-voltage alternating-current control power supply for a high-voltage discharge part (96) of the purifier, and the voltage reduction circuit (600) and the voltage increase circuit have electromagnetic isolation.

5. The nano water ion deodorizing cat litter basin of claim 2, wherein, The motion detection device (3) comprises a motion detection sensor (31), and the motion detection driving module comprises a motion detection control unit (510); the motion detection sensor (31) is used for detecting object movement and sending a movement signal; the motion detection control unit (510) is used for receiving the movement signal of the motion detection sensor (31) and feeding back a control signal to the main control module (100); a power supply positive terminal of the motion detection sensor (31) is connected to a power supply end of the motion detection control unit (510); a power supply negative terminal of the motion detection sensor (31) is grounded; and a signal output end of the motion detection sensor (31) is connected to a signal input end of the motion detection control unit (510).

6. A nano water ion deodorizing cat litter basin according to claim 2, characterized in that, The power module (200) comprises a filtering unit (210), a PIR power supply unit (220), a main control power supply unit (230) and a DC-DC voltage boosting unit, the filtering unit (210) is used for filtering the direct current input by the device interface (23), the DC-DC voltage boosting unit is used for boosting the direct current output by the filtering unit (210) to +12V, the PIR power supply unit (220) is used for providing a first direct current power supply for the motion detection driving module (500), the main control power supply unit (230) is used for providing a second direct current power supply for the main control module (100), and the DC-DC voltage boosting unit is used for providing a third direct current power supply for the PIR power supply unit (220), the nano water ion driving module (300) and the exhaust driving module (400) respectively, the PIR power supply unit (220) comprises a diode D3, a capacitor C7, a capacitor C8, a capacitor C9, a capacitor C10 and a voltage stabilizer U3, the third direct current power supply is connected to the anode of the diode D3, the cathode of the diode D3 is connected to one end of the capacitor C7, one end of the capacitor C8 and a first end of the voltage stabilizer U3, a second end of the voltage stabilizer U3 is connected to one end of the capacitor C9, one end of the capacitor C10 and an output end, a third end of the voltage stabilizer U3, the other end of the capacitor C7, the other end of the capacitor C8, the other end of the capacitor C9, the other end of the capacitor C10 are connected to a ground end, and the output end is used for providing the first direct current power supply for the motion detection driving module (500).

7. A nano water ion deodorizing cat litter basin according to claim 6, characterized in that, The exhaust driving module (400) comprises a low-speed driving unit (410), a medium-speed driving unit (420), a high-speed driving unit (430), a diode D1 and a capacitor C1, the main control module (100) is connected to the low-speed driving unit (410), the medium-speed driving unit (420) and the high-speed driving unit (430) respectively, the low-speed driving unit (410), the medium-speed driving unit (420) and the high-speed driving unit (430) are connected to the third direct current power supply through the anode of the diode D1 and are connected to the third direct current power supply and the exhaust device (41) through the capacitor C1.

8. The nano water ion deodorizing cat litter basin of claim 1, wherein, The shell (2) comprises an upper shell (21) and a lower shell (22), the upper shell (21) and the lower shell (22) form an inlet and outlet (8), the upper shell (21) is provided with a blocking door (27), the blocking door (27) is arranged in the inlet and outlet (8), and the upper shell (21) is further provided with an air purification assembly (4) containing area and a motion detection device (3) containing area, the air purification assembly (4) is arranged in the air purification assembly (4) containing area, and the motion detection device (3) is arranged in the motion detection device (3) containing area.

9. A nano water ion deodorizing cat litter basin according to claim 8, characterized in that, Further comprising a sand collecting device (6), the sand collecting device (6) comprises an upper cover (61) and a bottom shell (62), the upper cover (61) and the bottom shell (62) are detachably connected, and the upper cover (61) is provided with a first sand collecting net (63) integrally formed on the upper cover (61); The import and export (8) is provided with a second sand collecting net (64) which is integrally formed with the lower shell (22).

10. The nano water ion deodorizing cat litter basin of claim 8, wherein, The upper shell (21) is rotatably connected to the lower shell (22) on the side away from the import and export (8), and the upper shell (21) is detachably connected to the lower shell (22) on the two lengthwise sides.

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