Negative ion heating structure

Abstract

A negative ion heating structure relates to the technical field of heating structures and comprises a heating assembly, a negative ion generator and a discharge tip plate. The heating assembly is integrally in a mesh shape; the discharge tip plate is matched with the heating assembly; a discharge tip of the negative-ion generator is mounted on the discharge tip plate; and the discharge tip plate is provided with a flow guide hole. The device further comprises an installation box, a fan, a Laval pipe and a ventilation hole plate. The fan, the negative-ion generator, the discharge tip plate, the Laval pipe and the ventilation hole plate are all arranged on the mounting box; the Laval pipe is installed on the ventilation hole plate, and ventilation holes corresponding to the Laval pipe are formed in the ventilation hole plate. The Laval pipe is of a spray pipe structure which contracts firstly and then expands. The heating assembly is of a mesh-shaped structure, the heating effect is guaranteed, meanwhile, blocking of airflow is greatly reduced, the contact probability of negative ions and high-temperature components is reduced, the negative ion neutralization loss is effectively reduced, the negative ion output concentration and stability are improved, and the heating effect and the air purification capacity are improved.

Description

Technical Field

[0001] This invention relates to the field of heating structure technology, and in particular to a negative ion heating structure. Background Technology

[0002] In modern life and industrial production, negative ion heating structures are widely used in many fields such as indoor environment regulation, physiotherapy equipment, small household appliances, and industrial insulation. Their core requirement is to achieve the synergistic effect of heating function and additional functions such as negative ion purification and health care. They can provide a comfortable temperature environment and improve ambient air quality and regulate human physiological state through negative ions. Therefore, they have received widespread market attention and continuous improvement in application demand.

[0003] Existing negative ion heating structures typically consist of a simple combination of a heating element and a negative ion generator. Traditional heaters often employ a dense heating element structure. When the negative ions generated by the generator pass through the heating components, they easily come into contact with the high-temperature metal parts and undergo recombination and neutralization, leading to a significant decrease in the negative ion concentration. At the same time, the dense structure hinders smooth airflow, making it difficult for negative ions to be effectively carried out, resulting in low negative ion content at the device's air outlet and poor purification effect.

[0004] Therefore, how to provide a negative ion heating structure that can reduce the loss of negative ions during the heating process and improve the output concentration and stability of negative ions is a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] To address the above problems, this invention proposes a negative ion heating structure, and the technical solution used is as follows: A negative ion heating structure includes a heating component, a negative ion generator, and a discharge tip plate; the heating component is generally mesh-shaped; the discharge tip plate and the heating component are configured to cooperate; the discharge tip of the negative ion generator is mounted on the discharge tip plate.

[0006] Furthermore, the heating assembly includes a frame, a heating layer, a heat-conducting layer, and a heat-insulating layer; both the frame and the heating layer are mesh-like, and the mesh openings of the two are correspondingly arranged and aligned in position; the heating layer is installed on the frame; the whole formed by the frame and the heating layer has a heat-conducting layer and a heat-insulating layer on its two sides respectively, and the heat-conducting layer and the heat-insulating layer have mesh openings corresponding to the mesh openings of the frame and the heating layer.

[0007] Furthermore, a grounding wire is connected to the conductive heating component of the heating layer.

[0008] Furthermore, it also includes a mounting box, a fan, a Laval tube, and a ventilation plate; the fan, negative ion generator, discharge tip plate, Laval tube, and ventilation plate are all mounted on the mounting box; the Laval tube is mounted on the ventilation plate, and the ventilation plate has ventilation holes corresponding to the Laval tube; the Laval tube is a nozzle structure that first contracts and then expands; the discharge tip plate is provided with guide holes.

[0009] Furthermore, the heating element, discharge tip plate, Laval tube, and ventilation plate are arranged sequentially from the outside to the inside of the mounting box, with the two ends of the Laval tube connected to the ventilation hole and the guide hole, respectively.

[0010] Furthermore, the heating element, Laval tube, ventilation plate, and discharge tip plate are arranged sequentially from the outside to the inside of the mounting box. One end of the Laval tube is connected to the ventilation hole, and the other end corresponds to the mesh of the heating element.

[0011] Furthermore, the heating components and the mounting box are set separately; the Laval tube, the ventilation plate, and the discharge tip plate are arranged sequentially from the outside to the inside on the mounting box.

[0012] Furthermore, the Laval tube is tubular in shape and has a circular cross-section.

[0013] Furthermore, the Laval tube is generally flat and elongated, with a flat and narrow cross-section.

[0014] Furthermore, it also includes a conductive contact terminal and a power control module; the conductive contact terminal is electrically connected to the power control module via a wire.

[0015] Because the present invention adopts the above-described technical solution, it has the following advantages compared with the prior art: 1. The heating element of the present invention adopts a mesh structure, which greatly reduces the obstruction of airflow while ensuring the heating effect, reduces the probability of negative ions coming into contact with high-temperature components, effectively reduces the neutralization loss of negative ions, and improves the output concentration and stability of negative ions.

[0016] 2. By setting up a Laval tube structure, this invention can accelerate, pressurize, and direct the airflow, significantly improving the outlet speed and directionality of the airflow, enabling negative ions to be transported over long distances with high efficiency, resulting in more uniform diffusion and a wider coverage area.

[0017] 3. The structure and installation arrangement of the heating component, mounting box, discharge tip plate, Laval tube and ventilation hole plate in this invention can be flexibly adjusted according to the actual working conditions. The overall structure is highly adaptable, easy to assemble and highly versatile, and can meet the needs of different usage scenarios.

[0018] 4. The invention installs a grounding wire on the heating component, which can effectively solve the problem of arcing and sparking that easily occur between the heating component and the negative ion generator due to the large potential difference, small distance, and reduced air insulation strength at high temperatures. The grounding wire can quickly conduct the static electricity, induced charge, and possible leakage current accumulated on the heating component to the ground, which not only avoids the interference of arc discharge on the stability of negative ion generation, but also significantly improves the electrical safety of the equipment, eliminates the risk of electric shock, and ensures the long-term stable and safe operation of the equipment.

[0019] 5. This invention organically combines mesh heating, Laval tube airflow acceleration, negative ion generation, and ventilation perforated plate airflow guidance to achieve efficient synergistic operation of heating and negative ion purification. Under the premise of low noise and low loss, it simultaneously improves heating effect and air purification capability, making it highly practical and with broad application prospects. Attached Figure Description

[0020] Figure 1 This is an exploded structural diagram of the heating component of the present invention.

[0021] Figure 2 This is a schematic diagram of the overall side-mounted structure of the fan of the present invention when it is installed on the bottom surface of the mounting box.

[0022] Figure 3 This is a schematic diagram of the overall tilt structure of the fan of the present invention when it is installed on the bottom surface of the mounting box.

[0023] Figure 4 This is a schematic diagram of the structure of Embodiment 1 of the present invention with the installation box removed.

[0024] Figure 5 This is a schematic diagram of the exploded structure of Embodiment 1 of the present invention.

[0025] Figure 6 This is a schematic diagram of the structure of Embodiment 2 of the present invention with the installation box removed.

[0026] Figure 7 This is a schematic diagram of the exploded structure of Embodiment 2 of the present invention.

[0027] Figure 8 This is a schematic diagram of the overall side-mounted structure of the fan of the present invention when it is installed on the side of the mounting box.

[0028] Figure 9 This is a schematic diagram of the structure of Embodiment 3 of the present invention with the mounting box removed.

[0029] Figure 10 This is a schematic diagram of the exploded structure of Embodiment 3 of the present invention.

[0030] Figure 11 This is a schematic diagram of the structure of Embodiment 4 of the present invention with the installation box removed.

[0031] Figure 12This is a schematic diagram of the exploded structure of Embodiment 4 of the present invention.

[0032] Figure 13 This is a schematic diagram of the overall structure of Embodiment 5 of the present invention.

[0033] Figure 14 This is a schematic diagram of the exploded structure of Embodiment 5 of the present invention.

[0034] Figure 15 This is a schematic diagram of the overall structure of Embodiment Six of the present invention.

[0035] Figure 16 This is a schematic diagram of the exploded structure of Embodiment Six of the present invention.

[0036] Icon labels: 1-Heating component; 101-Frame; 102-Heating layer; 103-Heat-conducting layer; 104-Insulation layer; 2-Mounting box; 3-Fan; 4a-Discharge tip plate one; 5a-Laval tube one; 6a-Ventilation perforation plate one; 4b-Discharge tip plate two; 5b-Laval tube two; 6b-Ventilation perforation plate two; 4c-Discharge tip plate three; 5c-Laval tube three; 6c-Ventilation perforation plate three; 4d-Discharge tip plate four; 5d-Laval tube four; 6d-Ventilation perforation plate four; 4e-Discharge tip plate five; 5e-Laval tube five; 6e-Ventilation perforation plate five; 4f-Discharge tip plate six; 5f-Laval tube six; 6f-Ventilation perforation plate six. Detailed Implementation

[0037] The technical solution of the present invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention; however, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0038] In the description of this invention, it should be noted that the terms "upper", "lower", "in", "out", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this invention is usually placed when in use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0039] A negative ion heating structure includes a heating component 1, a negative ion generator, and a discharge tip plate.

[0040] Heating component 1 is generally mesh-like, such as Figure 1As shown, the device includes a frame 101, a heating layer 102, a heat-conducting layer 103, and a heat-insulating layer 104. Both the frame 101 and the heating layer 102 are mesh-like, with corresponding mesh openings and aligned positions. The heating layer 102 is mounted on the frame 101. The entire structure formed by the frame 101 and the heating layer 102 has a heat-conducting layer 103 and a heat-insulating layer 104 on each side. The heat-conducting layer 103 and the heat-insulating layer 104 have mesh openings corresponding to the mesh openings of the frame 101 and the heating layer 102. The heat-conducting layer 103 faces the working area to quickly conduct heat away, improving heating efficiency. The heat-insulating layer 104 faces away from the working area to lock in heat, preventing heat loss and avoiding burns to other structures.

[0041] Grounding terminals are pre-installed on conductive components such as the metal heating element and metal mounting bracket of heating assembly 1. One end of the grounding wire is firmly connected to the grounding terminal by means of fastening bolts, welding or crimping to ensure good contact and no looseness. The other end of the grounding wire is reliably connected to the main grounding terminal of the equipment, the grounding busbar or the earth. The grounding resistance must meet the relevant electrical safety standards to ensure that leakage current, static electricity and induced charge can be quickly and smoothly conducted to the earth, further ensuring the grounding protection effect. Together with the heating device, negative ion generator and other components, the equipment can achieve safe and stable operation.

[0042] Specifically, the heating layer 102 can be heated by resistance or by graphene. Taking resistance heating as an example, the heating layer 102 is an insulating substrate with resistive heating circuits arranged on it. Electrodes are provided at both ends of the resistive heating circuits, and the electrodes are used to connect to an external power source. After power is applied, current flows through the resistive heating circuits to generate heat, thereby achieving heating.

[0043] The negative ion generator includes a high-voltage power supply module and a discharge tip electrically connected to it. The high-voltage power supply module outputs a negative high voltage, and the discharge tip generates corona discharge under the action of the negative high voltage to ionize the air and generate and release negative ions. To ensure clarity and ease of understanding of the accompanying drawings, the circuit parts and conventional connecting wires are omitted. The specific connection methods and working principles all adopt conventional technical means in this field and will not be described in detail here.

[0044] The discharge tip plate and heating component 1 are configured together, and the discharge tip of the negative ion generator is mounted on the discharge tip plate.

[0045] This negative ion heating structure also includes a mounting box 2, a fan 3, a Laval tube, and a ventilation plate. The mounting box, fan 3, negative ion generator, discharge tip plate, Laval tube, and ventilation plate are all mounted on the mounting box 2.

[0046] like Figures 2-3 and Figure 8As shown, several fans 3 are provided, which can be installed on the bottom or side of the mounting box 2 to guide airflow into the mounting box 2. A guide hole is provided on the discharge tip plate; the airflow generated by the fans 3 passes through the guide hole and diffuses the generated negative ions outward, forming a negative ion airflow.

[0047] The Laval tube is installed on the ventilation port plate, and the ventilation port plate is provided with ventilation holes corresponding to the Laval tube. Under the drive of the fan 3, the gas can pass through the ventilation holes and enter the Laval tube. The Laval tube is a nozzle structure that first contracts and then expands. The gas is compressed and accelerated in the contraction section, and in the expansion section, it continues to expand and depressurize due to the increase in cross-sectional area, further converting pressure energy into kinetic energy and achieving continuous acceleration.

[0048] To ensure that negative ions can continuously exert their effects on the human body, this negative ion heating structure is also equipped with a conductive contact end. The conductive contact end is electrically connected to the negative ion generator through a wire. When using the device, the user only needs to contact the conductive contact end with a certain part of the body (such as the wrist, ankle, abdomen, back, etc.) to form a circuit between the human body and the negative ion generator, thereby increasing the potential difference and continuously increasing the number of negative ions emitted over a long period of time without any burden, thus achieving a better therapeutic effect.

[0049] The arrangement of the heating component 1 and the mounting box 2, as well as the structure and installation method of the discharge tip plate, Laval tube and ventilation hole plate, can be flexibly set according to the actual working conditions. The following describes them in detail through various embodiments. Example 1:

[0050] In Embodiment 1, the discharge tip plate, Laval tube, and ventilation hole plate are respectively discharge tip plate 4a, Laval tube 5a, and ventilation hole plate 6a. Fan 3 is disposed on the bottom surface of mounting box 2.

[0051] like Figures 4-5 As shown, the heating assembly 1, discharge tip plate 4a, Laval tube 5a, and ventilation plate 6a are arranged sequentially from the outside to the inside inside the mounting box 2. The Laval tube 5a is tubular in shape with a circular or nearly circular cross-section, and multiple Laval tubes 5a are arranged in a matrix. The ventilation plate 6a has circular ventilation holes corresponding to the Laval tubes 5a; the discharge tip plate 4a has flow guide holes corresponding to the Laval tubes 5a, these flow guide holes are crescent-shaped and surround the discharge tip; both ends of the Laval tube 5a are connected to the ventilation holes and flow guide holes, respectively.

[0052] Heating component 1 performs the heating function; the airflow driven by fan 3 enters Laval tube 5a through the ventilation hole, is accelerated by Laval tube 5a and passes through the guide hole, diffuses the negative ions generated on the discharge tip plate 4a outward, and makes them pass through the mesh of heating component 1 to form a negative ion airflow. Example 2:

[0053] In Embodiment 2, the discharge tip plate, Laval tube, and ventilation hole plate are respectively discharge tip plate 2 4b, Laval tube 2 5b, and ventilation hole plate 2 6b. The fan 3 is located on the bottom surface of the mounting box 2.

[0054] like Figures 6-7 As shown, the heating assembly 1, discharge tip plate 4b, Laval tube 5b, and ventilation plate 6b are arranged sequentially from the outside to the inside inside the mounting box 2. The Laval tube 5b is generally flat and elongated, with a flat and narrow cross-section; multiple Laval tubes 5b are arranged in a single linear row. The ventilation plate 6b has narrow ventilation holes corresponding to the Laval tubes 5b; the discharge tip plate 4b has guide holes corresponding to the Laval tubes 5b, these guide holes are rectangular and located on the side of the discharge tip. Both ends of the Laval tube 5b are connected to the ventilation holes and the guide holes, respectively.

[0055] Heating component 1 performs the heating function; the airflow driven by fan 3 enters Laval tube 5b through the ventilation hole, is accelerated by Laval tube 5b and passes through the guide hole, diffuses the negative ions generated on discharge tip plate 4b outward, and makes them pass through the mesh of heating component 1 to form a negative ion airflow. Example 3:

[0056] In Embodiment 3, the discharge tip plate, Laval tube, and ventilation hole plate are respectively discharge tip plate 3 4c, Laval tube 3 5c, and ventilation hole plate 3 6c. Fan 3 is located on the side of mounting box 2.

[0057] like Figures 9-10 As shown, the heating component 1, Laval tube 5c, ventilation plate 6c, and discharge tip plate 4c are arranged sequentially from the outside to the inside inside the mounting box 2. The Laval tube 5c is tubular in shape with a circular or nearly circular cross-section, and multiple Laval tubes 5c are arranged in a matrix. The ventilation plate 6c has circular ventilation holes corresponding to the Laval tube 5c; one end of the Laval tube 5c communicates with the ventilation hole, and the other end corresponds to the mesh of the heating component 1. The ventilation plate 6c and the discharge tip plate 4c are attached together, and the discharge tip plate 4c has guide holes corresponding to the ventilation holes. These guide holes are crescent-shaped and surround the discharge tip.

[0058] Heating component 1 performs the heating function; the airflow driven by fan 3 passes through the guide hole and ventilation hole into Laval tube 3 5c, is accelerated by Laval tube 3 5c and then passes through the mesh of heating component 1, which diffuses the negative ions generated on discharge tip plate 3 4c outward to form a negative ion airflow. Example 4:

[0059] In Embodiment 4, the discharge tip plate, Laval tube, and ventilation hole plate are respectively discharge tip plate 4d, Laval tube 5d, and ventilation hole plate 6d. Fan 3 is located on the side of mounting box 2.

[0060] like Figures 11-12 As shown, the heating component 1, Laval tube 4.5d, ventilation plate 4.6d, and discharge tip plate 4.4d are arranged sequentially from the outside to the inside inside the mounting box 2. The Laval tube 4.5d is generally flat and elongated, with a flat and narrow cross-section, and multiple Laval tubes 4.5d are arranged in a single linear row. The ventilation plate 4.6d has narrow ventilation holes corresponding to the Laval tube 4.5d; one end of the Laval tube 4.5d is connected to the ventilation hole, and the other end has a certain distance from the heating component 1, forming an upper space for airflow. The ventilation plate 4.6d and the discharge tip plate 4.4d are attached together, and the discharge tip plate 4.4d has guide holes corresponding to the ventilation holes. The guide holes are rectangular and located on the side of the discharge tip.

[0061] Heating component 1 performs the heating function; the airflow driven by fan 3 enters the Laval tube 4d through the guide hole and ventilation hole, is accelerated by the Laval tube 4d and flows outward, and then passes through the mesh of heating component 1 to diffuse the negative ions generated on the discharge tip plate 4d outward, forming a negative ion airflow. Example 5:

[0062] In Example 5, the discharge tip plate, Laval tube, and ventilation hole plate are respectively discharge tip plate 5e, Laval tube 5e, and ventilation hole plate 5e. The fan 3 is located on the side of the mounting box 2.

[0063] like Figures 13-14 As shown, the Laval tube 5e, the ventilation plate 6e, and the discharge tip plate 4e are arranged sequentially from the outside to the inside on the mounting box 2. The Laval tube 5e is tubular in shape with a circular or nearly circular cross-section, and multiple Laval tubes 5e are arranged in a matrix. The ventilation plate 6e and the discharge tip plate 4e are attached together and located at the top of the mounting box 2; the discharge tip plate 4e has a guide hole corresponding to the ventilation hole, the guide hole is crescent-shaped and surrounds the discharge tip. The ventilation plate 6e has a circular ventilation hole corresponding to the Laval tube 5e; the bottom end of the Laval tube 5e communicates with the ventilation hole, and the top end corresponds to the mesh of the heating component 1, and the whole is located outside the mounting box 2.

[0064] Heating component 1 and mounting box 2 are set separately. Taking an ergonomic office chair as an example, heating component 1 is fixedly installed on the back of the backrest, and mounting box 2 is fixedly installed on the chair back frame. The Laval tube 5e corresponds to the mesh of heating component 1. Heating component 1 performs the heating function; the airflow driven by fan 3 passes through the guide hole and ventilation hole into Laval tube 5e, is accelerated by Laval tube 5e, and then passes through the mesh of heating component 1, diffusing the negative ions generated on the discharge tip plate 5e outward to form a negative ion airflow. Example 6:

[0065] In Example 6, the discharge tip plate, Laval tube, and ventilation hole plate are respectively discharge tip plate 64f, Laval tube 65f, and ventilation hole plate 66f. Fan 3 is located on the side of mounting box 2.

[0066] like Figures 15-16 As shown, the Laval tube 6.5f, the ventilation plate 6.6f, and the discharge tip plate 6.4f are arranged sequentially from the outside to the inside on the mounting box 2. The Laval tube 6.5f is generally flat and elongated, with a flat and narrow cross-section, and multiple Laval tubes 6.5f are arranged in a single linear row. The ventilation plate 6.6f and the discharge tip plate 6.4f are attached together and located at the top of the mounting box 2; the discharge tip plate 6.4f has a guide hole corresponding to the ventilation hole, the guide hole is rectangular, and is located on the side of the discharge tip. The ventilation plate 6.6f has a narrow ventilation hole corresponding to the Laval tube 6.5f; the bottom end of the Laval tube 6.5f is connected to the ventilation hole, and there is a certain gap between the top end and the heating component 1, and the whole is located outside the mounting box 2.

[0067] Heating component 1 and mounting box 2 are set separately. Taking an ergonomic office chair as an example, heating component 1 is fixedly installed on the back of the backrest, and mounting box 2 is fixedly installed on the chair back frame. There is a certain distance between the Laval tube 6 5f and heating component 1. Heating component 1 performs the heating function; the airflow driven by fan 3 passes through the guide hole and ventilation hole into Laval tube 6 5f, is accelerated by Laval tube 6 5f and flows outward, and then passes through the mesh of heating component 1, which diffuses the negative ions generated on the discharge tip plate 6 4f outward to form a negative ion airflow.

Claims

1. A negative ion heating structure, characterized in that, It includes a heating component (1), a negative ion generator, and a discharge tip plate; the heating component (1) is generally mesh-shaped; the discharge tip plate and the heating component (1) are configured together; the discharge tip of the negative ion generator is mounted on the discharge tip plate.

2. The negative ion heating structure according to claim 1, characterized in that, The heating assembly (1) includes a frame (101), a heating layer (102), a heat-conducting layer (103), and a heat-insulating layer (104). The frame (101) and the heating layer (102) are both mesh-like, and the meshes of the two are correspondingly arranged and aligned. The heating layer (102) is installed on the frame (101). The whole formed by the frame (101) and the heating layer (102) has a heat-conducting layer (103) and a heat-insulating layer (104) on its two sides respectively. The heat-conducting layer (103) and the heat-insulating layer (104) have meshes corresponding to the meshes of the frame (101) and the heating layer (102).

3. The negative ion heating structure according to claim 2, characterized in that, A grounding wire is connected to the conductive heating component of the heating layer (102).

4. The negative ion heating structure according to claim 1, characterized in that, It also includes a mounting box (2), a fan (3), a Laval tube and a ventilation hole plate; the fan (3), negative ion generator, discharge tip plate, Laval tube and ventilation hole plate are all set on the mounting box (2); the Laval tube is installed on the ventilation hole plate, and the ventilation hole plate is provided with ventilation holes corresponding to the Laval tube; the Laval tube is a nozzle structure that first contracts and then expands; the discharge tip plate is provided with guide holes.

5. The negative ion heating structure according to claim 4, characterized in that, The heating assembly (1), the discharge tip plate, the Laval tube and the ventilation hole plate are arranged in sequence from the outside to the inside of the mounting box (2), and the two ends of the Laval tube are connected to the ventilation hole and the guide hole respectively.

6. The negative ion heating structure according to claim 4, characterized in that, The heating assembly (1), Laval tube, ventilation plate and discharge tip plate are arranged in sequence from the outside to the inside of the mounting box (2). One end of the Laval tube is connected to the ventilation hole, and the other end corresponds to the mesh of the heating assembly (1).

7. The negative ion heating structure according to claim 4, characterized in that, The heating assembly (1) and the mounting box (2) are set separately; the Laval tube, the ventilation plate and the discharge tip plate are set on the mounting box (2) from the outside to the inside.

8. The negative ion heating structure according to claim 4, characterized in that, The Laval tube is tubular in shape and has a circular cross-section.

9. The negative ion heating structure according to claim 4, characterized in that, The Laval tube is generally flat and elongated, with a flat and narrow cross-section.

10. A negative ion heating structure according to any one of claims 1-9, characterized in that, It also includes a conductive contact terminal, which is electrically connected to the negative ion generator via a wire.

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