Purifier control module

Abstract

The utility model discloses a purifier control module, which is applied to a purifier capable of generating nanometer water ions and comprises a step-down circuit and an inversion booster circuit, and electromagnetic isolation exists between the step-down circuit and a booster module. According to the utility model, refrigeration starting of the semiconductor refrigeration piece of the purifier launcher is controlled through the step-down circuit, high-voltage discharge starting between the high-voltage discharge part and the condensation needle of the purifier launcher is controlled through the inversion booster circuit, and electromagnetic isolation is realized between the step-down circuit and the inversion booster circuit. And the stability of the equipment is improved. Besides, the inversion boost circuit which is simply designed can realize 3KV-5KV AC voltage output, can realize miniaturization, and can be accommodated in a small space, thereby realizing physical isolation with a step-down circuit, avoiding mutual electromagnetic interference, and improving the operation stability of equipment.

Description

Technical Field

[0001] The utility model belongs to the field of electronic technology, and particularly relates to a purifier control module. Background Art

[0002] Nano water ions are nano-sized ions produced by repeated splitting of water after being placed under high voltage. They are weakly acidic and have the effects of removing odors, decomposing some harmful substances and inhibiting pathogens.

[0003] In the prior art, nano-water ions are produced by ionizing condensed water in the air. A purifier is equipped with a refrigeration unit and a high-voltage discharge unit. The refrigeration unit captures condensed water in the air, while the high-voltage discharge unit uses high-voltage alternating current to ionize the condensed water and produce the nano-water ions. The refrigeration unit typically uses semiconductor refrigeration and requires a low-voltage DC power supply for control, while the high-voltage discharge unit requires a high-voltage AC power supply for control. Because the refrigeration and high-voltage discharge units of a purifier are tightly integrated, the two control circuits can interfere with each other. In particular, the interference between the high-voltage AC power supply and the low-voltage DC power supply can cause the output voltage to be unstable, affecting the normal operation of the semiconductor refrigeration components and even causing damage to the components.

[0004] In view of this, it is necessary to propose a new purifier control module to solve the above problems. Utility Model Content

[0005] In order to solve the common problems in the prior art, the utility model proposes a purifier control module, which is applied to a purifier capable of generating nano-water ions and can improve the operation stability of the equipment.

[0006] The technical solution adopted by this utility model is:

[0007] A purifier control module includes a step-down circuit and an inverter-boost circuit. The step-down circuit is used to provide a low-voltage DC control power supply for the semiconductor refrigeration component of the purifier, and the inverter-boost circuit is used to provide a high-voltage AC control power supply for the high-voltage discharge part of the purifier. There is electromagnetic isolation between the step-down circuit and the boost module.

[0008] Furthermore, the purifier control module also includes a shell, which is provided with a partition to divide the internal space into a buck module accommodating area and an inverter boost module accommodating area; the buck circuit is arranged in the buck module accommodating area, and the inverter boost circuit is arranged in the inverter boost module accommodating area.

[0009] Furthermore, the separator is made of a highly conductive material.

[0010] Furthermore, the material of the separator is copper or tin.

[0011] Furthermore, the buck module accommodating area and the inverter boost module accommodating area are filled with insulating glue.

[0012] Furthermore, the first input port of the step-down circuit and the second input port of the inverter-boost circuit are connected to the same power supply.

[0013] Furthermore, the positive pole of the first output port of the step-down circuit is connected to the positive end of the purifier semiconductor refrigeration component, the negative pole of the first output port of the step-down circuit is connected to the negative end of the purifier semiconductor refrigeration component, the positive pole of the second output port of the inverter boost circuit is connected to the high-voltage discharge electrode of the purifier, the negative pole of the second output port of the inverter boost circuit is connected to the negative end of the purifier semiconductor refrigeration component, and the negative end of the purifier semiconductor refrigeration component has the same potential as the purifier discharge needle.

[0014] Furthermore, the inverter boost module includes a first switching tube, a five-terminal transformer, a voltage doubling unit, a matching resistor unit, a fourth resistor, a fifth resistor and a seventh capacitor. The primary side like-name terminal of the five-terminal transformer is connected to the first end of the fourth resistor, the primary side neutral terminal of the five-terminal transformer is connected to the positive electrode of the second input port, the first end of the seventh capacitor and the first end of the fifth resistor, the primary side opposite-name terminal of the five-terminal transformer is connected to the collector of the first switching tube, the base of the first switching tube is connected to the second end of the fourth resistor, the emitter of the first switching tube is connected to the first end of the seventh capacitor and the negative electrode of the second input port, the secondary like-name terminal and opposite-name terminal of the five-terminal transformer are connected to the voltage doubling unit, the voltage doubling unit is connected in series with the matching resistor unit, the matching resistor unit is connected to the positive electrode of the second output port, and the secondary opposite-name terminal of the five-terminal transformer is also connected to the second end of the fifth resistor and the negative electrode of the second output port; the first switching tube is an NPN transistor.

[0015] Furthermore, the voltage doubling unit includes a third diode, a fourth diode, a fifth diode, an eighth capacitor, a ninth capacitor and a tenth capacitor, the anode of the third diode is connected to the secondary opposite-name terminal of the five-terminal transformer and the first terminal of the tenth capacitor, the cathode of the third diode is connected to the anode of the fourth diode, the first terminal of the eighth capacitor and the first terminal of the ninth capacitor, the cathode of the fourth diode is connected to the anode of the fifth diode and the second terminal of the tenth capacitor, and the cathode of the fifth diode is connected to the second terminal of the ninth capacitor and the matching resistor unit.

[0016] Furthermore, the matching resistor unit includes a sixth resistor and a seventh resistor connected in series.

[0017] The beneficial effects of the utility model are:

[0018] This utility model proposes a purifier control module for use in purifiers capable of generating nano-water ions. The module controls the cooling activation of the semiconductor refrigeration element of the purifier's launcher via a step-down circuit, and controls the activation of the high-voltage discharge between the purifier's launcher's high-voltage discharge unit and the condensation needle via an inverter-boost circuit. Electromagnetic isolation is achieved between the step-down circuit and the inverter-boost circuit, improving the stability of the device. Furthermore, the streamlined inverter-boost circuit, capable of outputting 3kV to 5kV AC voltage, is miniaturized and can be accommodated in a small space, thereby achieving physical isolation from the step-down circuit, preventing electromagnetic interference and improving the stability of the device's operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the purifier from above;

[0020] Figure 2 It is a schematic diagram of the AA section of the purifier;

[0021] Figure 3 This is a schematic structural diagram of an embodiment of a purifier control module of the utility model;

[0022] Figure 4 This is the principle diagram of the step-down circuit of the utility model;

[0023] Figure 5 This is a schematic diagram of the inverter boost circuit of the utility model.

[0024] In the picture:

[0025] 100-launch frame of purifier, 110-base, 120-column, 130-semiconductor refrigeration component, 131-positive terminal, 132-negative terminal, 140-high-voltage discharge part, 141-hollow, 142-high-voltage discharge electrode, 150-condensation needle, 200-purifier control module, 210-step-down circuit, 220-inverter boost circuit, 221-voltage multiplier unit, 222-matching resistor unit, 230-shell, 231-partition, 232-step-down module accommodating area, 233-inverter boost module accommodating area. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0027] The terms "first", "second" and "third" in this application are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number or order of the indicated technical features. All directional indications in the embodiments of this application (such as up, down, left, right, front, back...) are only used to explain the relative position relationship or movement between the components in a certain specific posture (as shown in the accompanying drawings); it should be noted that when a component is referred to as "fixed to", "set to" or "connected to" another component, it can be directly on the other component or there can be a central component. When a component is considered to be "connected" to another component, it can be directly connected to the other component, or there may be one or more central components in between. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0028] In order to solve the common problems in the prior art, the utility model proposes a purifier control module, which can be applied to an air purifier and can improve the operating stability of the equipment.

[0029] like Figure 1 and Figure 2 As shown, the launcher 100 of the purifier includes a base 110, four columns 120, a semiconductor cooling element 130, a high-voltage discharge unit 140, and a condensation needle 150. The semiconductor cooling element 130 is disposed below the base 110, and the four columns 120 support the high-voltage discharge unit 140 above the base 110. The condensation needle 150 passes through the middle of the base 110 and contacts the semiconductor cooling element 130. When low-voltage direct current is applied to the semiconductor cooling element 130, a temperature difference is generated through the Peltier effect. The condensation needle 150 contacts the cold end of the semiconductor cooling element 130. When the temperature of the condensation needle 150 drops below the dew point, condensation water is generated on it. The high-voltage discharge unit 140 has a hollow 141 in the middle, and the upper end of the condensation needle 150 is located below the hollow 141. When high-voltage alternating current is applied between the high-voltage discharge unit 140 and the condensation needle 150, the condensation water generated by the condensation needle 150 is ionized into nano-water ions.

[0030] See also Figure 3 The present invention proposes an embodiment of a purifier control module 200, including a step-down circuit 210 and an inverter-boost circuit 220. The step-down circuit 210 is used to provide a low-voltage DC control power supply for the semiconductor refrigeration component of the purifier launch frame, and the inverter-boost circuit 220 is used to provide a high-voltage AC control power supply for the high-voltage discharge part of the purifier. There is electromagnetic isolation between the step-down circuit 210 and the inverter-boost circuit 220.

[0031] In some embodiments, see Figure 3The purifier control module 100 also includes a shell 230, which is provided with a partition 231 to divide the internal space into a buck module accommodating area 232 and an inverter boost module accommodating area 233; the buck circuit 210 is arranged in the buck module accommodating area 232, and the inverter boost circuit 220 is arranged in the inverter boost module accommodating area 233.

[0032] In this embodiment, the step-down circuit 210 and the inverter step-up circuit 220 are physically isolated to avoid electromagnetic interference and improve the operation stability of the device.

[0033] In some embodiments, the separator 231 is made of a highly conductive material. Highly conductive materials generate large induced currents under the action of electromagnetic waves, which weaken the penetration of electromagnetic waves and lead to an electromagnetic shielding effect.

[0034] In some embodiments, the material of the separator 231 is copper or tin.

[0035] In some embodiments, the buck module accommodating area 232 and the inverter boost module accommodating area 233 are filled with insulating glue to enhance insulation and heat dissipation.

[0036] As an example, see Figure 4 The step-down circuit 210 includes a switch module U1, a first diode D1, an inductor L1, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a precision voltage regulator D2, a first capacitor C1, a second capacitor C2, and a fourth capacitor C4. The positive end of the first input port J1 is connected to the first end of the second resistor R2 and the input pin VIN and the enable pin EN of the switch module U1. The switch pin SW of the switch module U1 is connected to the cathode of the first diode D1 and the first end of the inductor L1. The first capacitor C1 is connected in parallel between the switch pin SW of the switch module U1 and the bootstrap pin VBST. The second end of the inductor L1 is connected to the first input The positive end of the output port J2 and the first end of the first resistor R1, the second end of the first resistor R1 are connected to the feedback pin VFB of the switch module U1 and the first end of the third resistor R3, the second end of the third resistor R3 is connected to the second end of the second resistor R2 and the cathode and reference end of the precision voltage regulator D2, the negative end of the first input port J1, the ground pin GND of the switch module U1, the anode of the first diode D1, the anode of the precision voltage regulator D2 and the negative end of the first output port J2 are all grounded, the second capacitor C2 is connected in parallel between the positive and negative ends of the first input port J1, and the fourth capacitor C4 and the fourth resistor R4 are both connected in parallel between the positive and negative ends of the first output port J2.

[0037] In a specific implementation, the input voltage connected to the first input port J1 can be 5V or 12V. The switch module U1 can be a synchronous step-down voltage regulator chip, such as the TPS564201, or other models with similar functionality. The precision voltage regulator D2 can be a TL431 precision voltage regulator, or other models with similar functionality. The buck circuit 210 can provide a regulated DC voltage output as low as 120mV, with an output current of 2 to 2.5A.

[0038] In some embodiments, see Figure 4 The step-down circuit 210 further includes a third capacitor C3 connected in parallel between the positive terminal and the negative terminal of the first input port J1, which can further filter out input interference and stabilize the voltage.

[0039] In some embodiments, see Figure 4 The step-down circuit 210 further includes a fifth capacitor C5 and a sixth capacitor C6 connected in parallel between the positive terminal and the negative terminal of the first output port J2 to further stabilize the voltage.

[0040] In some embodiments, see Figure 5 The inverter boost circuit 220 includes a first switch tube Q1, a five-terminal transformer U2, a voltage doubling unit 221, a matching resistor unit 222, a fourth resistor R4, a fifth resistor R5 and a seventh capacitor C7. The primary side like-name terminals of the five-terminal transformer U2 are connected to the first end of the fourth resistor R4, the primary side neutral terminal of the five-terminal transformer U2 is connected to the positive electrode of the second input port J3, the first end of the seventh capacitor C7 and the first end of the fifth resistor R5, the primary side opposite-name terminals of the five-terminal transformer U2 are connected to the collector of the first switch tube Q1, and the first switch tube The base of Q1 is connected to the second end of the fourth resistor R4, the emitter of the first switch tube Q1 is connected to the first end of the seventh capacitor C7 and the negative electrode of the second input port J3, the secondary like-name terminal and the opposite-name terminal of the five-terminal transformer U2 are connected to the voltage multiplier unit 221, the voltage multiplier unit 221 is connected in series with the matching resistor unit 222, the matching resistor unit 222 is connected to the positive electrode of the second output port J4, and the secondary opposite-name terminal of the five-terminal transformer U2 is also connected to the second end of the fifth resistor R5 and the negative electrode of the second output port J4; the first switch tube Q1 is an NPN transistor.

[0041] The inverter boost circuit 220 of the embodiment of the present invention generates an oscillating current through the seventh capacitor C7, the first switch tube Q1 and the five-terminal transformer U2, and uses the five-terminal transformer U2 and the voltage doubling unit 221 to produce a two-stage voltage amplification effect. The output AC voltage can reach 3KV to 5KV. The inverter boost circuit 220 has a streamlined structure and can be miniaturized and can be accommodated in the inverter boost module accommodating area 233 of the shell 230.

[0042] In some embodiments, see Figure 5The voltage doubling unit 221 includes a third diode D3, a fourth diode D4, a fifth diode D5, an eighth capacitor C8, a ninth capacitor C9 and a tenth capacitor C10. The anode of the third diode D3 is connected to the secondary opposite-name terminal of the five-terminal transformer U2 and the first end of the tenth capacitor C10. The cathode of the third diode D3 is connected to the anode of the fourth diode D4, the first end of the eighth capacitor C8 and the first end of the ninth capacitor C9. The cathode of the fourth diode D4 is connected to the anode of the fifth diode D5 and the second end of the tenth capacitor C10. The cathode of the fifth diode D5 is connected to the second end of the ninth capacitor C9 and the matching resistor unit 222.

[0043] It should be noted that the voltage doubling unit of this embodiment can achieve triple voltage multiplication by using three sets of diodes and capacitors. In other application examples, the number of diodes and capacitors can be increased or decreased to achieve other voltage multiplication ratios.

[0044] In some embodiments, see Figure 5 The matching resistor unit 222 includes a sixth resistor R6 and a seventh resistor R7 connected in series.

[0045] It should be noted that the matching resistor unit in this embodiment is used to adjust the output current and frequency. In other application examples, the number of resistors may be increased or decreased to achieve other adjustment effects.

[0046] In some embodiments, see Figures 1 to 5 The positive pole of the first output port J2 of the step-down circuit 210 is connected to the positive end 131 of the purifier semiconductor refrigeration component 130, the negative pole of the first output port J2 of the step-down circuit 210 is connected to the negative end 132 of the purifier semiconductor refrigeration component 130, the positive pole of the second output port J4 of the inverter boost circuit 220 is connected to the high-voltage discharge electrode 142 of the purifier high-voltage discharge part 140, the negative pole of the second output port J4 of the inverter boost circuit 220 is connected to the negative end 132 of the purifier semiconductor refrigeration component 130, and the negative end 132 of the purifier semiconductor refrigeration component 130 has the same potential as the purifier condensation needle 150.

[0047] It should be noted that this embodiment proposes a specific connection method between the purifier control module 200 and the launch rack 100 of the purifier. The purifier control module 200 controls the refrigeration activation of the semiconductor refrigeration component 130 of the launch rack 100 through the first output port J2, and controls the high-voltage discharge activation between the high-voltage discharge part 140 and the condensation needle 150 of the launch rack 100 through the second output port J4.

[0048] In some embodiments, see Figures 1 to 5 The first input port J1 of the buck circuit 210 and the second input port J3 of the inverter boost circuit 220 are connected to the same power supply. In a specific application, the same power supply can be used to simultaneously control the activation of the purifier semiconductor refrigeration element and the high-voltage discharge unit.

[0049] It should be noted that in other applications, the first input port J1 of the buck circuit 210 and the second input port J3 of the inverter boost circuit 220 can also be connected to different power supplies, and the activation of the purifier semiconductor refrigeration unit and the high-voltage discharge unit can be controlled by different power supplies and switches respectively.

[0050] The present invention is not limited to the above-mentioned optional implementation methods. Anyone can derive various other forms of products under the inspiration of the present invention. However, no matter what changes are made in the shape or structure, any technical solution that falls within the scope defined by the claims of the present invention shall fall within the scope of protection of the present invention.

Claims

1. A purifier control module, characterized in that: The invention comprises a step-down circuit (210) and an inverter-boost circuit (220), wherein the step-down circuit (210) is used to provide a low-voltage DC control power supply for a semiconductor refrigeration component of a purifier, and the inverter-boost circuit (220) is used to provide a high-voltage AC control power supply for a high-voltage discharge part of the purifier, and the step-down circuit (210) and the inverter-boost circuit (220) are electromagnetically isolated.

2. A purifier control module according to claim 1, characterized in that: The invention also includes a housing (230), wherein the housing (230) is provided with a partition (231) for dividing the internal space into a buck module accommodating area (232) and an inverter boost module accommodating area (233); the buck circuit (210) is arranged in the buck module accommodating area (232), and the inverter boost circuit (220) is arranged in the inverter boost module accommodating area (233).

3. A purifier control module according to claim 2, characterized in that: The separator (231) is made of a highly conductive material.

4. A purifier control module according to claim 3, characterized in that: The material of the partition (231) is copper or tin.

5. The purifier control module according to claim 2, characterized in that: The buck module accommodating area (232) and the inverter boost module accommodating area (233) are filled with insulating glue.

6. The purifier control module according to claim 1, characterized in that: The first input port (J1) of the step-down circuit (210) and the second input port (J3) of the inverter step-up circuit (220) are connected to the same power supply.

7. The purifier control module according to claim 1, characterized in that: The positive pole of the first output port (J2) of the step-down circuit (210) is connected to the positive end of the semiconductor refrigeration element of the purifier, the negative pole of the first output port (J2) of the step-down circuit (210) is connected to the negative end of the semiconductor refrigeration element of the purifier, the positive pole of the second output port (J4) of the inverter boost circuit (220) is connected to the high-voltage discharge electrode of the purifier, the negative pole of the second output port (J4) of the inverter boost circuit (220) is connected to the negative end of the semiconductor refrigeration element of the purifier, and the negative end of the semiconductor refrigeration element of the purifier has the same potential as the discharge needle of the purifier.

8. The purifier control module according to claim 1, characterized in that: The inverter boost circuit (220) comprises a first switch tube (Q1), a five-terminal transformer (U2), a voltage doubling unit (221), a matching resistor unit (222), a fourth resistor (R4), a fifth resistor (R5) and a seventh capacitor (C7); the primary side like-name terminals of the five-terminal transformer (U2) are connected to the first end of the fourth resistor (R4); the primary side neutral terminal of the five-terminal transformer (U2) is connected to the positive electrode of the second input port (J3), the first end of the seventh capacitor (C7) and the first end of the fifth resistor (R5); the primary side opposite-name terminals of the five-terminal transformer (U2) are connected to the collector of the first switch tube (Q1); and the first switch tube (Q1) is connected to the collector of the first switch tube (Q1). 1) The base is connected to the second end of the fourth resistor (R4), the emitter of the first switch tube (Q1) is connected to the first end of the seventh capacitor (C7) and the negative electrode of the second input port (J3), the secondary like-name terminal and the opposite-name terminal of the five-terminal transformer (U2) are connected to the voltage multiplier unit (221), the voltage multiplier unit (221) is connected in series with the matching resistor unit (222), the matching resistor unit (222) is connected to the positive electrode of the second output port (J4), and the secondary opposite-name terminal of the five-terminal transformer (U2) is also connected to the second end of the fifth resistor (R5) and the negative electrode of the second output port (J4); the first switch tube (Q1) is an NPN transistor.

9. The purifier control module according to claim 8, characterized in that: The voltage doubling unit (221) comprises a third diode (D3), a fourth diode (D4), a fifth diode (D5), an eighth capacitor (C8), a ninth capacitor (C9) and a tenth capacitor (C10); the anode of the third diode (D3) is connected to the secondary opposite-name terminal of the five-terminal transformer (U2) and the first terminal of the tenth capacitor (C10); the cathode of the third diode (D3) is connected to the anode of the fourth diode (D4), the first terminal of the eighth capacitor (C8) and the first terminal of the ninth capacitor (C9); the cathode of the fourth diode (D4) is connected to the anode of the fifth diode (D5) and the second terminal of the tenth capacitor (C10); and the cathode of the fifth diode (D5) is connected to the second terminal of the ninth capacitor (C9) and the matching resistor unit (222).

10. The purifier control module according to claim 8, characterized in that: The matching resistor unit (222) includes a sixth resistor (R6) and a seventh resistor (R7) connected in series.

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