Small-size positive and negative ion generator

Abstract

The utility model discloses a small-size positive and negative ion generator, which comprises a shell, a first PCBA (Printed Circuit Board Assembly) board arranged in the shell, and an input circuit, a high-voltage pack, diodes D1-D2 and capacitors C1-C2 which are arranged on the first PCBA board, the first output end of the high-voltage pack is connected with the cathode of the diode D1 and one end of the capacitor C2, the anode of the diode D1 and the capacitor C1 are jointly connected to an HV-end, the other end of the capacitor C1 is connected with the second output end of the high-voltage pack and the anode of the diode D2, and the cathode of the capacitor C2 and the cathode of the diode D2 are jointly connected to an HV + end; the diode D1 and the diode D2 are crosswise stacked on the first PCBA board along the height direction; by means of the structure, the size of the shell can be very small, and high-voltage output of two polarities can be integrated in the same shell.

Description

Technical Field

[0001] The utility model relates to the field of ion generators, and particularly to a small-volume positive and negative ion generator. Background Art

[0002] Currently in the market, limited by the size of the housing and the high-voltage package, it is difficult to integrate a bipolar high-voltage output in the same housing with a volume within 2.2 cm3 for positive ion generators, negative ion generators, positive and negative ion generators, and plasma generators with AC / DC voltage input. Therefore, there is a drawback that ion generator products with only a single-polarity output can be made in a small-volume housing.

[0003] With the development of the market, for example, in household air purifier series products, especially in the application of high-speed brushless motors in the beauty and hair industry, the whole machine product requires higher wind speed, more compact appearance, more compact internal installation space, and higher ion concentration. Therefore, a highly integrated ion generator product with a bipolar high-voltage output is very necessary. Summary of the Utility Model

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. For this purpose, the utility model provides a small-volume positive and negative ion generator.

[0005] An embodiment of the utility model adopts the following technical solution to solve its technical problem: A small-volume positive and negative ion generator includes a housing, a first PCBA board disposed in the housing, and an input circuit, a high-voltage package, diodes D1 - D2, and capacitors C1 - C2 disposed on the first PCBA board;

[0006] The input circuit is connected between an external power supply and the input end of the high-voltage package;

[0007] The first output end of the high-voltage package is respectively connected to the cathode of diode D1 and one end of capacitor C2. The anode of diode D1 and capacitor C1 are commonly connected to the HV- end. The other end of capacitor C1 is respectively connected to the second output end of the high-voltage package and the anode of diode D2. Capacitor C2 and the cathode of diode D2 are commonly connected to the HV+ end;

[0008] Diodes D1 and D2 are cross-stacked along the height direction on the first PCBA board.

[0009] As one of the preferred embodiments of the utility model, the high-voltage package includes a bobbin, a magnetic core, a primary winding, and a secondary winding. The first wire groove and the second wire groove are distributed on the left and right of the bobbin. There is an insulating partition between the first wire groove and the second wire groove. The primary winding is wound in the first wire groove, and the secondary winding is wound in the second wire groove. A magnetic core cavity penetrating the left and right ends of the bobbin is opened in the middle of the bobbin, and the magnetic core is disposed in the magnetic core cavity.

[0010] As one of the preferred embodiments of the present utility model, a small-sized positive and negative ion generator further includes a resistor R1 and a resistor R2 connected between the input circuit and the second output terminal of the high-voltage package.

[0011] A small-sized positive and negative ion generator further includes a resistor R3 and a resistor R4 connected between the HV- terminal and the anode of the diode D1, and a resistor R5 and a resistor R6 connected between the HV+ terminal and the cathode of the diode D2.

[0012] As one of the preferred embodiments of the present utility model, when setting the RTN terminal of a small-sized positive and negative ion generator, the RTN terminal is connected to the second output terminal of the high-voltage package through a resistor R7 and a resistor R8.

[0013] The beneficial effects of the present utility model: A small-sized positive and negative ion generator includes a housing, a first PCBA board disposed inside the housing, and an input circuit, a high-voltage package, diodes D1-D2, and capacitors C1-C2 disposed on the first PCBA board; the input circuit is connected between an external power supply and the input terminal of the high-voltage package; the first output terminal of the high-voltage package is respectively connected to the cathode of the diode D1 and one end of the capacitor C2, the anode of the diode D1 and the capacitor C1 are commonly connected to the HV- terminal, the other end of the capacitor C1 is respectively connected to the second output terminal of the high-voltage package and the anode of the diode D2, and the capacitor C2 and the cathode of the diode D2 are commonly connected to the HV+ terminal; the diodes D1 and D2 are cross-stacked along the height direction on the first PCBA board; through the above structure, not only can the size of the housing be very small, but also two polarities of high-voltage outputs can be integrated in the same housing, and the high-voltage output voltages of the two polarities have a high degree of consistency. When separately testing the ion output concentration of one of the polarities, the positive ion concentration and the negative ion concentration are balanced and consistent; and the high-voltage outputs of the two polarities neutralize each other when discharging, and finally the overall presents the characteristics of negative ions. Description of the Drawings

[0014] The above and / or additional aspects and advantages of the present utility model will become apparent and easy to understand from the description of the embodiments in conjunction with the following drawings, where:

[0015] Figure 1 is a structural schematic diagram of a small-sized positive and negative ion generator;

[0016] Figure 2 is a circuit schematic diagram of a small-sized positive and negative ion generator;

[0017] Figure 3 is a structural schematic diagram of the high-voltage package;

[0018] Figure 4 is a partial structural schematic diagram of a small-sized positive and negative ion generator. Detailed implementation manners

[0019] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The function of the accompanying drawings is to supplement the description in the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present utility model. However, it should not be construed as a limitation on the protection scope of the present utility model.

[0020] In the description of the present utility model, the meaning of "a plurality of" is more than two. Understandings such as "greater than", "less than", and "exceeding" do not include the present number, and understandings such as "above", "below", and "within" include the present number. If there is a description of "first" and "second", it is only for the purpose of distinguishing technical features and cannot be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0021] In the description of the present utility model, it should be understood that for the orientation description, such as the orientation or positional relationship indicated by "upper", "lower", "front", "rear", "left", "right", etc., is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the present utility model.

[0022] In the present utility model, unless otherwise clearly defined, terms such as "arrangement", "installation", and "connection" should be understood in a broad sense. For example, they can be directly connected, or indirectly connected through an intermediate medium; they can be fixedly connected, or detachably connected, or integrally formed; they can be mechanically connected; they can be the communication inside two elements or the interaction relationship between two elements. Those skilled in the art can reasonably determine the specific meanings of the above terms in the present utility model in combination with the specific content of the technical solution.

[0023] Refer to Figures 1 to 4 , a small-sized positive and negative ion generator, including a housing 10, a first PCBA board 20 arranged in the housing 10, and an input circuit 30, a high-voltage package 40, diodes D1 - D2, and capacitors C1 - C2 arranged on the first PCBA board 20;

[0024] The input circuit 30 is connected between an external power supply and the input end of the high-voltage package 40;

[0025] The first output end of the high-voltage package 40 is respectively connected to the cathode of the diode D1 and one end of the capacitor C2. The anode of the diode D1 and the capacitor C1 are commonly connected to the HV- end. The other end of the capacitor C1 is respectively connected to the second output end of the high-voltage package 40 and the anode of the diode D2. The capacitor C2 and the cathode of the diode D2 are commonly connected to the HV+ end;

[0026] The diode D1 and the diode D2 are stacked crosswise in the height direction on the first PCBA board 20.

[0027] 1) In the present utility model, by utilizing the inverting effect of the capacitor C2, a positive voltage with a phase exactly opposite to that of the negative voltage and the same voltage amplitude is obtained at the secondary of the high-voltage transformer 40; when separately testing the ion concentration of one of the polarities (shielding the emitter of the other polarity), since the high-voltage amplitudes of the two polarities are the same, the measured positive ion concentration is balanced and consistent with the negative ion concentration. When the two polarities discharge with each other, after the positive and negative ions neutralize, the overall shows negative ion characteristics; it should be noted that with reference to Figure 1 , a first input connection line 11 and a second input connection line 12 connected to the input circuit 30, a first output connection line 13 connected to the HV+ terminal, and a second output connection line 14 connected to the HV- terminal are provided on the housing 10.

[0028] 2) With reference to Figure 3 , in one embodiment, the high-voltage transformer 40 includes a bobbin 41, a magnetic core 42, a primary winding, and a secondary winding. A first wire groove 43 and a second wire groove 44 are distributed on the left and right of the bobbin 41. There is an insulating partition 45 between the first wire groove 43 and the second wire groove 44. The primary winding is wound around the first wire groove 43, and the secondary winding is wound around the second wire groove 44. A magnetic core cavity 46 penetrating through the left and right ends of the bobbin 41 is formed in the middle of the bobbin 41, and the magnetic core 42 is inserted into the magnetic core cavity 46.

[0029] Specifically, both the primary winding and the secondary winding of the high-voltage transformer 40 are wound on the same bobbin 41. The first wire groove 43 and the second wire groove 44 of the bobbin 41 can be single grooves or multi-grooves. Such a design not only improves the winding efficiency but also reduces the wear of the enameled wire of the primary winding when the magnetic core 42 is inserted into the magnetic core cavity 46. At the same time, the bobbin 41 of the high-voltage transformer 40 is changed from a dome shape to a flat shape. According to the design requirements, the magnetic core 42 can be cylindrical or square-strip-shaped, making the high-voltage transformer 40 appear more slender. A thinner thickness can make the housing 10 designed more compact, achieving high integration and small volume.

[0030] 3) As a preferred embodiment of the component layout within the housing 10, with reference to 4, the diode D1 and the diode D2 are stacked crosswise in the height direction on the first PCBA board 20; the space above the first PCBA board 20 is fully utilized, providing the possibility for further miniaturization. The cross direction of the diode D1 and the diode D2 can also determine the polarity of the output voltage (positive high voltage or negative high voltage), that is, the polarity of the high-voltage output lead can be changed by changing the polarity directions of the diode D1 and the diode D2.

[0031] 5) The advantages of the present utility model are as follows: Through the above structure, not only can the size of the housing be very small, but also two polarities of high-voltage outputs can be integrated in the same housing. The high-voltage output voltages of the two polarities have a high degree of consistency. When testing the ion output concentration of one of the polarities alone, the positive ion concentration and the negative ion concentration are balanced and consistent; and when the high-voltage outputs of the two polarities discharge with each other, they neutralize, and finally the whole presents the characteristics of negative ions.

[0032] In one embodiment, a small-size positive and negative ion generator further includes a resistor R1 and a resistor R2 connected between the input circuit 30 and the second output terminal of the high-voltage package 40; when the resistor R1 and the resistor R2 are not provided, the ion generator is an isolated type, and when the resistor R1 and the resistor R2 are connected, the ion generator is a non-isolated type.

[0033] In one embodiment, a small-size positive and negative ion generator further includes a resistor R3 and a resistor R4 connected between the HV- terminal and the anode of the diode D1, and a resistor R5 and a resistor R6 connected between the HV+ terminal and the cathode of the diode D2.

[0034] In one embodiment, when a RTN terminal is provided for a small-size positive and negative ion generator, the RTN terminal is connected to the second output terminal of the high-voltage package 40 through a resistor R7 and a resistor R8.

[0035] Certainly, the present utility model is not limited to the above embodiments. Those skilled in the art can also make equivalent deformations or substitutions without departing from the spirit of the present utility model, and these equivalent deformations and substitutions are all included in the scope defined by the claims of this application.

Claims

1. A small-sized positive and negative ion generator, characterized in that: It includes a housing (10), a first PCBA board (20) disposed within the housing (10), and an input circuit (30), a flyback transformer (40), diodes D1 - D2, and capacitors C1 - C2 disposed on the first PCBA board (20); The input circuit (30) is connected between an external power supply and the input terminal of the flyback transformer (40); The first output terminal of the flyback transformer (40) is respectively connected to the cathode of diode D1 and one end of capacitor C2. The anode of diode D1 and capacitor C1 are commonly connected to the HV - terminal. The other end of capacitor C1 is respectively connected to the second output terminal of the flyback transformer (40) and the anode of diode D2. Capacitor C2 and the cathode of diode D2 are commonly connected to the HV + terminal; The diodes D1 and D2 are stacked cross -wise in the height direction on the first PCBA board (20).

2. The small-volume positive and negative ion generator according to claim 1, wherein: The flyback transformer (40) includes a bobbin (41), a magnetic core (42), a primary winding, and a secondary winding. On the bobbin (41), a first wire groove (43) and a second wire groove (44) are distributed left and right. There is an insulating partition (45) between the first wire groove (43) and the second wire groove (44). The primary winding is wound in the first wire groove (43), and the secondary winding is wound in the second wire groove (44). A magnetic core cavity (46) penetrating through the left and right ends of the bobbin (41) is formed in the middle of the bobbin (41), and the magnetic core (42) is inserted into the magnetic core cavity (46).

3. A small-sized positive and negative ion generator according to claim 1, characterized in that: It further includes a resistor R1 and a resistor R2 connected between the input circuit (30) and the second output terminal of the flyback transformer (40).

4. A small-sized positive and negative ion generator according to claim 1, wherein: It further includes a resistor R3 and a resistor R4 connected between the HV - terminal and the anode of diode D1, and a resistor R5 and a resistor R6 connected between the HV + terminal and the cathode of diode D2.

5. A small-sized positive and negative ion generator according to claim 1, characterized in that: When setting the RTN terminal, the RTN terminal is connected to the second output terminal of the flyback transformer (40) through resistor R7 and resistor R8.

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