A direct current high voltage negative ion static electricity eliminating circuit

Abstract

A direct current high voltage negative ion static electricity elimination circuit is applied to a negative ion generating device, which comprises a direct current high voltage negative ion generator and a static electricity elimination component, the direct current high voltage negative ion generator comprises a direct current high voltage driving module and a discharge needle, the direct current high voltage driving module is used to increase the voltage to above-4KV, the discharge needle is electrically connected to the direct current high voltage driving module to generate ionization effect to generate negative ions, and the static electricity elimination component is used to eliminate the charges generated by the discharge needle and attached to the negative ion generating device, and comprises one or more DR2s, the sum of the direct current reverse withstand voltage of the DR2s is greater than the high voltage generated by the direct current high voltage driving module of the direct current high voltage negative ion generator.

Description

Technical Field

[0001] The present invention relates to the technical field of negative ions, in particular to a negative ion air conditioner and a negative ion generating device thereof and a direct current high-voltage negative ion static elimination circuit. Background Art

[0002] Negative ions have a therapeutic and health-care effect on the human body. They also have an air optimization effect. They can effectively remove dust in the air and have a sterilization effect to reduce the harm of dust or floating bacteria to human health.

[0003] However, existing negative ion generating machines generally form negative ions by ionizing air with high voltage. In order to obtain a higher concentration of negative ions, a relatively high voltage is required. However, extremely high voltage will generate static electricity, which can easily lead to the accumulation of charge, which may cause the equipment to break down and affect the safe use of the equipment. Summary of the Invention

[0004] In order to solve the above technical problems, the present invention provides a DC high-voltage negative ion static elimination circuit, which is applied to a negative ion generating device, comprising:

[0005] A DC-to-high-voltage negative ion generator comprising a DC-to-high-voltage drive module and a discharge needle, wherein the DC-to-high-voltage drive module raises the voltage referenced to GND to above -4KV, and the discharge needle is electrically connected to the DC-to-high-voltage drive module to generate ionization to generate negative ions; and

[0006] An anti-static component is used to perform anti-static treatment on the charge generated by the discharge needle and attached to the negative ion generating device. It includes one or more DK2s, and the sum of the DC reverse withstand voltages of the DK2s is greater than the high voltage generated by the DC-to-high-voltage drive module of the DC-to-high-voltage negative ion generator.

[0007] Preferably, the DC reverse withstand voltage of DK2 of the static dissipation component is 5KV, the average rectified current (Io) is 200mA, the forward voltage drop (Vf) is 5V@200m, and the reverse current (Ir) is 5uA@5kV.

[0008] Preferably, the static dissipation component further includes one or more DR2 connected in series with DK2, which are one or more of transient diodes, varistors, air discharge tubes, glass discharge tubes, and semiconductor discharge tubes.

[0009] Preferably, the DC-to-high-voltage negative ion generator includes a first connection circuit electrically connected to GND and a second connection circuit electrically connected to VCC, the anti-static component includes an anti-static connection circuit, and one or more DKs are connected in series in the anti-static connection circuit.

[0010] Preferably, at least a portion of the static electricity removal connection circuit is attached to the housing of the negative ion generating device. For example, SP1 is attached to the housing by conductive material such as aluminum foil or copper foil.

[0011] Preferably, the anti-static circuit also includes a DC power supply end protection component connected to the DC-to-high-voltage negative ion generator, which includes one or more diodes M1, whose DC reverse withstand voltage is relatively high, such as not less than 1KV, to prevent the DC-to-high-voltage negative ion generator from generating interference and affecting the system power supply VCC.

[0012] Preferably, the DC to high-voltage negative ion generator includes a first connection circuit electrically connected to GND and a second connection circuit electrically connected to VCC, and the DC power supply end protection component also includes at least one DR1, one end of which is electrically connected to the second connection circuit and the other end is electrically connected to GND, and DR1 is a transient diode.

[0013] Preferably, the polarity of DR1 is bidirectional, the reverse cutoff voltage Vrwm is 13V, the minimum breakdown voltage is 14.4V, the peak pulse current Ipp is @10 / 1000μs: 28, and the maximum clamping voltage is 21.5V.

[0014] Preferably, the DC-to-high-voltage negative ion generator includes a first connection line electrically connected to GND and a second connection line electrically connected to VCC. The DC power supply end protection component also includes at least one PLM1, one end of which is electrically connected to the second connection line and the other end is electrically connected to GND. The PLM1 is one or more of a transient diode, a varistor, an air discharge tube, a glass discharge tube, or a semiconductor discharge tube. Preferably, the PLM1 is a glass discharge tube, which is a high-performance discharge tube with a DC breakdown voltage of 140V, an accuracy of ±30%, an insulation resistance of 100MΩ, an electrostatic capacitance of 0.8pF, and a flow rate of 300A.

[0015] Preferably, the DC to high voltage drive module increases the voltage to -4KV to -12KV.

[0016] The present invention also provides a negative ion generating device, which comprises:

[0017] power supply;

[0018] housing; and

[0019] A DC high-voltage negative ion anti-static circuit is electrically connected to the power supply and comprises:

[0020] A DC-to-high-voltage negative ion generator comprising a DC-to-high-voltage drive module and a discharge needle, wherein the DC-to-high-voltage drive module raises the voltage referenced to GND to above -4KV, and the discharge needle is electrically connected to the DC-to-high-voltage drive module to generate ionization to generate negative ions; and

[0021] An anti-static component is used to perform anti-static treatment on the charge generated by the discharge needle and attached to the negative ion generating device. It includes one or more DK2s. The sum of the DC reverse withstand voltages of the DK2s is greater than the high voltage generated by the DC-to-high-voltage drive module of the DC-to-high-voltage negative ion generator. The anti-static component is used to perform anti-static treatment on the charge on the shell.

[0022] The present invention also provides a negative ion air conditioner, comprising:

[0023] Air conditioner body; and

[0024] Negative ion generating device, comprising:

[0025] power supply;

[0026] housing; and

[0027] A DC high-voltage negative ion anti-static circuit is electrically connected to the power supply and comprises:

[0028] A DC-to-high-voltage negative ion generator comprising a DC-to-high-voltage drive module and a discharge needle, wherein the DC-to-high-voltage drive module raises the voltage referenced to GND to above -4KV, and the discharge needle is electrically connected to the DC-to-high-voltage drive module to generate ionization to generate negative ions; and

[0029] An anti-static component is used to perform anti-static treatment on the charge generated by the discharge needle and attached to the negative ion generating device. It includes one or more DK2s. The sum of the DC reverse withstand voltages of the DK2s is greater than the high voltage generated by the DC-to-high-voltage drive module of the DC-to-high-voltage negative ion generator. The anti-static component is used to perform anti-static treatment on the charge on the shell.

[0030] The beneficial effects of the present invention are: the anti-static component can be used to perform anti-static treatment on the charge generated by the discharge needle and attached to the negative ion generating device, and the DC power supply end protection component can be used to prevent the DC-to-high-voltage negative ion generator from generating interference and affecting the system power supply VCC, thereby ensuring the safe and normal use of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic block diagram of a water negative ion air conditioner according to a preferred embodiment of the present invention.

[0032] Figure 2 Schematic diagram of the structure of the water negative ion air conditioner according to the preferred embodiment of the present invention.

[0033] Figure 3 It is a schematic diagram of the circuit composition of the DC high-voltage negative ion anti-static circuit of the negative ion generating device of the water negative ion air conditioner of the above preferred embodiment of the present invention. DETAILED DESCRIPTION

[0034] The terms and words used in the following description are not limited to the literal meanings, but are merely used by the inventor to enable a clear and consistent understanding of the present application. Therefore, it will be apparent to those skilled in the art that the following description of various embodiments of the present application is provided for illustration purposes only and not for the purpose of limiting the present application as defined by the appended claims and their equivalents.

[0035] Although ordinal numbers such as "first," "second," and the like will be used to describe various components, these are not intended to limit those components. The terms are used solely to distinguish one component from another. For example, a first component could be referred to as a second component, and similarly, a second component could be referred to as a first component without departing from the teachings of the present inventive concept. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0036] The terms used herein are for the purpose of describing various embodiments only and are not intended to be limiting. As used herein, the singular is intended to include the plural, unless the context clearly indicates otherwise. It will also be understood that the terms "comprising" and / or "having" when used in this specification specify the presence of a stated feature, number, step, operation, component, element, or combination thereof, and do not preclude the presence or addition of one or more other features, numbers, steps, operations, components, elements, or groups thereof.

[0037] like Figures 1 to 3 Shown is a negative ion air conditioner 1000 and its negative ion generating device 100 and DC high-voltage negative ion anti-static circuit 200 according to a preferred embodiment of the present invention. The negative ion air conditioner 1000 includes an air conditioner main body 1001 and the negative ion generating device 100.

[0038] The negative ion generating device 100 is installed in the air conditioner body 1001, thereby adding the function of providing negative ions to the negative ion air conditioner 1000. The air conditioner body 1001 has the structure of a common air conditioner, which may include a cabinet, a cooling system and / or a heating system, an air duct system, a humidification system, an electrical system, and other structures to ensure the normal operation of the air conditioner. It is understood that the air conditioner body 1001 can be a central air conditioner, an indoor wall-mounted air conditioner, a floor-standing air conditioner, a car air conditioner, etc.

[0039] The negative ion generating device 100 includes the DC high-voltage negative ion static elimination circuit 200, a power supply 40 and a housing 50. The DC high-voltage negative ion static elimination circuit 200 includes a DC to high-voltage negative ion generator 10, an static elimination component 20 and a DC power supply end protection component 30. The DC to high-voltage negative ion generator 10 generates negative charges by high-voltage discharge, and the negative charges are captured by various molecules such as water molecules and oxygen molecules to generate negative ion molecules. The static elimination component 20 is used to eliminate static electricity for the charges generated by the DC to high-voltage negative ion generator 10 when it is working and attached to the negative ion generating device 100, such as the housing 50 of the negative ion generating device 100. The DC power supply end protection component 30 is used to protect the power supply 40.

[0040] The DC to high-voltage negative ion generator 10 includes a DC to high-voltage drive module 11 and one or more discharge needles 12. The discharge needle 12 is electrically connected to the DC to high-voltage drive module 11. The DC to high-voltage drive module 11 increases the voltage to above -4KV, generating a negative high voltage relative to GND. Preferably, the DC to high-voltage drive module 11 increases the voltage provided by the power supply to -4KV to -12KV. The discharge needle 12 can ionize the air to generate negative ion molecules such as negative oxygen ions. When the negative ion generating device 100 includes a water mist generator, the discharge needle 12 can charge the water mist generated by the water mist generator, that is, the electrons generated by the discharge needle 12 are promptly absorbed by the water mist generated by the water mist generator, thereby generating a negative ion water mist rich in negative ions.

[0041] The DC-to-high-voltage negative ion generator 10 includes a first connecting line 13 and a second connecting line 14. The first connecting line 13 is connected to the GND (Ground) common ground line and serves as the negative electrode of the circuit, and the internal ground line is non-isolated. The second connecting line 14 is electrically connected to the VCC (Voltage Circuit) to serve as the positive electrode of the circuit.

[0042] In this embodiment, as an example, VCC may be 12V, and the parameters of the DC-to-high-voltage negative ion generator 10 are 10.5±0.5V boost-10KV±1KV, and the power is less than 3W.

[0043] The anti-static component 20 includes an anti-static connection circuit 21, at least a portion of which can be attached to the housing 50, and its fixed end 211 can be a conductive column, such as a copper column, which is fixed to the housing 50. The anti-static component 20 includes at least one DK2, so that electrons attached to the housing 50 of the negative ion generating device 100 are guided to the DK2 through the anti-static connection circuit 21 to achieve anti-static treatment. Optionally, the anti-static component 20 also includes a DR2, wherein DR2 and DK2 are connected in series to the anti-static connection circuit 21, which is one or more of a transient diode, a varistor, an air discharge tube, a glass discharge tube, and a semiconductor discharge tube to achieve anti-static treatment.

[0044] It can be understood that the negative ion generating device 100 can also be connected to other places where static electricity needs to be conducted through the static electricity dissipation connection line 21. For example, when the negative ion generating device 100 is equipped with the water mist generator and the water mist generator also generates water negative ions, the static electricity dissipation connection line 21 can also be electrically connected to the water mist generator to guide the static electricity generated by the water mist generator and perform static electricity removal through the static electricity dissipation component 20.

[0045] In order to better conduct static electricity, the anti-static component 20 may include a conductive layer 22 such as double-sided conductive aluminum foil or copper foil. For example, the double-sided conductive aluminum foil or copper foil may be attached to the inner side of the housing 50 .

[0046] In this embodiment, the anti-static component 20 may include two DKs, such as a DK1 and a DK2 connected in series. DK1 and DK2 are each a protective device, which may be a transient diode, a varistor, an air discharge tube, a glass discharge tube, a semiconductor discharge tube, etc.

[0047] In this embodiment, as an example, the two DK protection devices are selected as transient diodes, whose polarity is bidirectional, the reverse cutoff voltage (Vrwm) is 5.8V, the breakdown voltage (minimum value) is 6.45V, the breakdown voltage (maximum value) is 7.14V, the reverse leakage current (Ir) is 500uA, the peak pulse current (Ipp) is @10 / 1000μs: 58.1A, and the maximum clamping voltage is 10.5V DO-214AA 600W VRWM=6.8V.

[0048] The selection of DK2 is primarily concerned with designing the DC reverse withstand voltage (Vr). One or more diodes can be connected in series to ensure that the sum of the DC reverse withstand voltages of the multiple DK2s is greater than the high voltage generated by the DC-to-high-voltage driver module 11 of the DC-to-high-voltage negative ion generator 10. In this embodiment, for example, three diodes can be connected in series. Three DK2s can be selected and connected in series, resulting in a DC reverse withstand voltage of 5 kV. The sum of the three series connections is 15 kV, which is greater than the high voltage of 10 kV ± 1 kV generated by the DC-to-high-voltage negative ion generator 10.

[0049] For example, in this embodiment, the DC reverse withstand voltage of DK2 is 5KV, the average rectified current (Io) is 200mA, the forward voltage drop (Vf) is 5V@200mA, and the reverse current (Ir) is 5uA@5kV.

[0050] The DC power supply end protection component 30 is provided in the second connection line 14 and includes a diode M1 and protection devices PLM1 and DR1. M1 is connected in series in the second connection line 14. One end of PLM1 and DR1 are each electrically connected to the second connection line 14 and the other end is electrically connected to GND. At least one of the protection devices PLM1 and DR1 can be selected.

[0051] M1 can be a general-purpose diode. Its selection depends primarily on its DC reverse withstand voltage (Vr), forward voltage drop (Vf), and average rectified current (Io). The key requirement is a DC reverse withstand voltage (Vr) of at least 1 kV. M1's primary function is to prevent interference from the DC-to-high-voltage negative ion generator 10 that could affect the system power supply VCC.

[0052] In this embodiment, as an example, some parameters of the M1 model are as follows: the diode is configured as an independent type, the DC reverse withstand voltage (Vr) is 2KV, the average rectified current (Io) is 1A, the forward voltage drop (Vf) is 1.1V@1A, and the reverse current (Ir) is 5uA@2kV.

[0053] PLM1 is a protection device, which may be a transient diode, a varistor, an air discharge tube, a glass discharge tube, a semiconductor discharge tube, etc. DR1 is a transient voltage suppressor (TVS) diode, and its polarity is bidirectional.

[0054] The protection components of the DC power supply terminal protection assembly 30 include at least DR1. In this embodiment, for example, the selection parameters of DR1 are a reverse cutoff voltage (Vrwm) of 13V, a breakdown voltage (minimum value) of 14.4V, a peak pulse current (Ipp) of @10 / 1000μs: 28, and a maximum clamping voltage of 21.5V.

[0055] In this embodiment, PLM1 is selected as a glass discharge tube, and its selection parameters may be a high-performance discharge tube with a DC breakdown voltage of 140V, an accuracy of ±30%, an insulation resistance of 100MΩ, an electrostatic capacitance of 0.8pF, and a current flow of 300A.

[0056] The basic principles of this application have been described above in conjunction with specific embodiments. However, it should be noted that the advantages, strengths, and effects mentioned in this application are merely illustrative and not restrictive, and it should not be assumed that these advantages, strengths, and effects are required of each embodiment of this application. In addition, the specific details disclosed above are merely illustrative and facilitating understanding, and are not restrictive. The above details do not limit this application to being implemented by adopting the above specific details.

Claims

1. A DC high voltage negative ion antistatic circuit, which is applied to negative ion generating equipment, characterized in that: include: A DC-to-high-voltage negative ion generator includes a DC-to-high-voltage drive module and a discharge needle. The DC-to-high-voltage drive module raises the voltage referenced to GND to above -4KV. The discharge needle is electrically connected to the DC-to-high-voltage drive module to generate ionization to generate negative ions. An anti-static component for performing anti-static treatment on the charge generated by the discharge needle and attached to the negative ion generating device, comprising one or more DK2s, each of which is a protective device and is one or more of a transient diode, a varistor, an air discharge tube, a glass discharge tube, and a semiconductor discharge tube. When the DK2 is a transient diode or a semiconductor discharge tube, the sum of the DC reverse withstand voltages of the DK2s is greater than the high voltage generated by the DC-to-high-voltage drive module of the DC-to-high-voltage negative ion generator; as well as A DC power supply end protection component connected to the DC-to-high-voltage negative ion generator includes one or more diodes M1 to prevent the DC-to-high-voltage negative ion generator from generating interference and affecting the system power supply VCC. The DC-to-high-voltage negative ion generator includes a first connection line electrically connected to GND and a second connection line electrically connected to VCC. The DC power supply end protection component also includes at least one PLM1, one end of which is electrically connected to the second connection line and the other end is electrically connected to GND. PLM1 is one or more of a transient diode, a varistor, an air discharge tube, a glass discharge tube, and a semiconductor discharge tube.

2. The DC high voltage negative ion static elimination circuit according to claim 1, characterized in that: The static dissipation component further includes one or more DR2 connected in series with DK2, which are one or more of transient diodes, varistors, air discharge tubes, glass discharge tubes, and semiconductor discharge tubes.

3. The DC high voltage negative ion static elimination circuit according to claim 2, characterized in that: The anti-static component includes an anti-static connection line, and one or more DK2 are connected in series in the anti-static connection line.

4. The DC high voltage negative ion static elimination circuit according to claim 3, characterized in that: At least a portion of the static dissipation connection line is attached to the housing of the negative ion generating device.

5. The DC high voltage negative ion static elimination circuit according to any one of claims 1 to 4, characterized in that: The DC to high voltage drive module increases the voltage to -4KV~-12KV.

6. A negative ion generating device, characterized in that: include: power supply; case; and The DC high-voltage negative ion anti-static circuit according to any one of claims 1 to 5, wherein the anti-static component is used to perform anti-static treatment on the charge on the shell.

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