Manual adjustable needle electrode plasma injection device

Abstract

The utility model discloses a manual adjustable needle electrode plasma injection device which comprises a high-voltage electrode, a ground electrode and a quartz tube. Electrode insulation sleeves are arranged on the outer surfaces of electrode columns of the high-voltage electrode and the ground electrode; the plasma high-voltage electric field is positioned in the middle of the quartz tube; the electrode insulation sleeve is sleeved by the quartz tube wall and can move left and right along the quartz tube wall to drive the needle electrode to move left and right; a gas inlet and a plasma flame outlet in the vertical direction are formed in the middle of the quartz tube and located in the plasma high-voltage electric field; the gas inlet is communicated with a gas source to introduce gas into the plasma high-voltage electric field, and generated plasma is ejected to a surface to be treated through the outlet to realize treatment on the surface of an object; and handles for moving the high-voltage electrode or the ground electrode are arranged at the outer ends of the electrode insulating sleeves. According to the plasma surface treatment device, spraying related equipment in an existing plasma surface treatment device is improved, and the intensity and the density of plasma spraying can be adjusted manually.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of plasma, concretely relates to a manual adjustable needle electrode plasma jet device. BACKGROUND

[0002] Low temperature plasma surface treatment is usually generated under normal pressure or vacuum condition, and the reaction gas in the vacuum chamber generates plasma chemical reaction under the excitation of the applied electric field or magnetic field, generates the plasma including positive and negative ions, particles, active radicals, electrons and other active particles, and the plasma and the material surface chemical structure carry out physical and chemical reaction, change the physical structure and chemical structure of the material surface, and achieve the purpose of surface modification.

[0003] In the prior art, the surface treatment by plasma has been widely used, such as the treatment of new energy battery box in the automobile production field. However, it is found in the actual generation process that the discharge intensity needs to be adjusted due to different materials, different types of active particles generated and treatment of different parts, and the common method is to adjust the power of the plasma high-voltage power supply, such as replacing the power supply with corresponding power or replacing the power supply with adjustable output power. In the above method, the cost of modification is relatively high, and the procedure is complex. Therefore, the electrode discharge part of the existing plasma surface treatment equipment needs to be improved. UTILITY MODEL CONTENT

[0004] 1. The technical problem to be solved is:

[0005] In view of the above technical problems, the utility model provides a manual adjustable needle electrode plasma jet device, which improves the jet related equipment in the existing plasma surface treatment device, and realizes manual adjustment of the intensity and density of the plasma jet.

[0006] 2. Technical scheme:

[0007] A kind of manually adjustable needle electrode plasma jet device, it is characterized by comprising: high voltage electrode, ground electrode, sleeve electrode quartz tube;The high voltage electrode and ground electrode both include needle electrode, electrode column;Electrode column outer surface is fixed with electrode insulating sleeve;The high voltage electrode and ground electrode are oppositely arranged to form plasma high voltage electric field, and plasma high voltage electric field is located at the middle position of quartz tube;Electrode insulating sleeve is sleeved by quartz tube wall, can be moved left and right along the quartz tube wall and then drive needle electrode left and right movement;Quartz tube middle position and located in plasma high voltage electric field setting up and down direction gas inlet and plasma flame outlet;The gas inlet is connected with gas source to communicate gas to plasma high voltage electric field, and the generated plasma is ejected to the surface to be processed through plasma flame outlet to realize the processing of object surface;The outer end of electrode insulating sleeve is provided with handle for moving high voltage electrode or ground electrode;The outer side of handle is provided with limiting block.

[0008] Further, the needle electrode of the high voltage electrode and the ground electrode is a plurality of metal needle rods, which are uniformly arranged in an array on the inner surface of a square metal plate, and the outer surface of the square metal plate is fixedly connected to the electrode column at the middle position.

[0009] Further, the surface of the electrode insulating sleeve is provided with a raised elastic ring for sealing.

[0010] Further, it further comprises a limiting structure, when the two handles move towards each other, the distance between the high voltage electrode and the ground electrode can be minimized, and when the two handles move in opposite directions, the distance between the high voltage electrode and the ground electrode can be maximized.

[0011] Further, the plug is an insulating Teflon plug, and an O-shaped sealing ring is arranged on the plug for sealing.

[0012] Further, the limiting structure comprises a protrusion arranged at the middle position of the inner wall of the quartz tube and a structure arranged at the outer end of the quartz tube to prevent the handle from moving outward.

[0013] 3. Beneficial effects:

[0014] The manually adjustable needle electrode plasma jet device provided by the utility model can adjust the processing intensity when processing the surface of the plasma, and the designed discharge basic structure can be popularized to the existing equipment, has a wide application range, and can meet the surface processing requirements of different types of materials. In the design, the distance between the electrodes is controlled to control the electric field intensity, and the surface processing intensity is increased to reduce the processing time. Based on the basic structure of the device, the gas inlet is connected to different gas sources, so that the material can be activated or grafted, and the application field of the device is widened. Therefore, the device has high use efficiency, saves resources and reduces production cost.BRIEF DESCRIPTION OF DRAWINGS BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the front view of the utility model;

[0016] Figure 2 It is the front view of the utility model;

[0017] Figure 3 It is the front view of the utility model;

[0018] Figure 4 It is the schematic view of high voltage electrode and ground electrode in the utility model.

[0019] Reference signs: high voltage electrode 1, ground electrode 2, quartz tube 3, needle electrode 4, electrode column 5, electrode insulation sleeve 6, gas inlet 7, plasma flame outlet 8, handle 9, elastic ring 10, plug 11. DETAILED DESCRIPTION

[0020] The utility model will be specifically explained in connection with the drawings below.

[0021] As shown in the accompanying Figure 1 to the accompanying Figure 4 , a kind of manually adjustable needle electrode plasma jet device, it is characterized by comprising: high voltage electrode 1, ground electrode 2, sleeve electrode's quartz tube 3;The high voltage electrode and ground electrode both include needle electrode 4, electrode column 5;Electrode column outer surface is fixedly provided with electrode insulation sleeve 6;The high voltage electrode and ground electrode are oppositely set up to form plasma high voltage electric field, and plasma high voltage electric field is located in the middle position of quartz tube;The electrode insulation sleeve is sleeve-connected by quartz tube wall, can be moved left and right along the quartz tube wall to drive needle electrode left and right movement;Quartz tube middle position and located in plasma high voltage electric field set up up and down direction's gas inlet 7 and plasma flame outlet 8;The gas inlet is communicated with gas source to enter gas to plasma high voltage electric field, and the generated plasma is ejected to the surface to be handled by plasma flame outlet to realize the processing to object surface;The outer end of the electrode insulation sleeve is uniformly provided for moving high voltage electrode or ground electrode handle 9;The inner side of handle and electrode insulation sleeve are equipped with plug 11.

[0022] Further, the needle electrode of the high voltage electrode and ground electrode is a plurality of metal needle rods, which are uniformly arrayed and fixed to the inner surface of square metal plate, the outer surface of square metal plate is fixedly connected to electrode column at middle position, and each metal needle rod is connected to power supply by power supply lead fixed to the middle of electrode column.

[0023] Further, the surface of the electrode insulation sleeve 6 is provided with protruding elastic ring 10 for sealing.

[0024] Further, the limiting structure is arranged between the two handles, and when the two handles move towards each other, the distance between the high-voltage electrode and the ground electrode is minimized; and when the two handles move in opposite directions, the distance between the high-voltage electrode and the ground electrode is maximized.

[0025] Further, the plug is an insulating Teflon plug, and an O-shaped sealing ring is arranged on the plug for sealing.

[0026] Further, the limiting structure comprises a protrusion arranged at a middle position of an inner wall of the quartz tube and a structure arranged at an outer end of the quartz tube for preventing the handle from moving outward.

[0027] It should be noted that the limiting structure is a common design, and therefore, the specific structure is not described. Specific embodiments:

[0029] As shown in the accompanying drawings, Figures 1-4 The manual adjustment type needle electrode plasma jet device provided by the embodiment is applied to some existing plasma surface treatment equipment; the high-voltage electric field for generating plasma is arranged in the inner cavity of the quartz tube, the gas source in the electric field is changed to adapt to different modification requirements; the distance between the two needle electrodes is changed to adjust the strength of the high-voltage electric field, so that the strength of the plasma jet is adjusted.

[0030] The high-voltage electrode and the ground electrode in the embodiment are connected to the corresponding poles of the power supply through the wires in the electrode columns connected to the high-voltage electrode and the ground electrode, and the on-off of the power supply is used to realize the conduction or closing of the plasma treatment device.

[0031] The device can be applied to different forms of plasma modification devices as the basic structure of the plasma jet.

[0032] Although the utility model has disclosed as above with preferred embodiments, they are not intended to limit the utility model, and any person skilled in the art can make various changes or modifications without departing from the spirit and scope of the utility model, therefore, the protection scope of the utility model should be determined by the protection scope of the claims of the present application.

Claims

1. A manually adjustable needle electrode plasma jetting device, characterized in that: include: The system comprises a high-voltage electrode, a ground electrode, and a quartz tube fitted with the electrodes. Both the high-voltage and ground electrodes include needle-shaped electrodes and electrode posts. An electrode insulating sleeve is fixed to the outer surface of each electrode post. The high-voltage and ground electrodes are positioned opposite each other to form a plasma high-voltage electric field, which is located in the middle of the quartz tube. The electrode insulating sleeve is fitted onto the wall of the quartz tube and can move left and right along the tube wall, thereby moving the needle-shaped electrodes left and right. A gas inlet and a plasma flame outlet are located in the middle of the quartz tube, within the plasma high-voltage electric field. The gas inlet is connected to a gas source, allowing gas to flow into the plasma high-voltage electric field. The generated plasma is ejected through the plasma flame outlet to the surface to be treated, thus treating the object's surface. A handle for moving the high-voltage or ground electrode is provided at the outer end of each electrode insulating sleeve. A plug is provided between the inner side of the handle and the electrode insulating sleeve.

2. The manually adjustable needle electrode plasma jetting device according to claim 1, characterized in that: The high-voltage electrode and the ground electrode are needle-shaped electrodes consisting of multiple metal needle rods, which are uniformly arrayed and fixed to the inner surface of a square metal plate. The outer surface of the square metal plate is fixedly connected to an electrode post at the middle position. Each metal needle rod is connected to a power source through a current-carrying wire fixed to the middle of the electrode post.

3. The manually adjustable needle electrode plasma jetting device according to claim 2, characterized in that: The surface of the electrode insulating sleeve is provided with a raised elastic ring for sealing.

4. The manually adjustable needle electrode plasma jetting device according to claim 3, characterized in that: It also includes a limiting structure that minimizes the distance between the high-voltage electrode and the ground electrode when the two handles move toward each other, and maximizes the distance between the high-voltage electrode and the ground electrode when the two handles move in opposite directions.

5. The manually adjustable needle electrode plasma jetting device according to claim 1, characterized in that: The plug is an insulating PTFE plug, and an O-ring is provided on the plug for sealing.

6. The manually adjustable needle electrode plasma jetting device according to claim 4, characterized in that: The limiting structure includes a protrusion located in the middle of the inner wall of the quartz tube and a structure located at the outer end of the quartz tube to prevent the handle from moving outward.

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