Low-temperature negative oxygen ion generator and manufacturing method

Abstract

The negative oxygen ion generator comprises a device layer and electrode ends, the electrode ends are arranged at the left end and the right end of the device layer, and the electrode ends input external voltage to the device layer; the device layer generates negative oxygen ions according to an input voltage; the device layer comprises a plurality of ceramic layers, two electrode layers and a supporting layer; the multiple electrode layers and the two electrode layers are arranged in a staggered mode, and the supporting layer comprises negative oxygen ion holes. The two electrode ends apply voltage to the two electrode layers, and the two electrode layers excite oxygen molecules in negative oxygen ion holes to generate negative oxygen ions under the action of the voltage; the negative oxygen ion generator is designed and manufactured based on the ceramic co-firing technology, the manufacturing technology is mature, batch production of the negative oxygen ion generator is easy to achieve, and batch consistency and repeatability are improved; and by adopting integrated structure molding, the device is small in size, high in mechanical strength, excellent in vibration and impact resistance, easy to weld and mount, and high in yield by adopting an automatic surface-mount welding process.

Description

Technical Field

[0001] The present application belongs to the technical field of negative oxygen ion generators, and specifically relates to a low-temperature negative oxygen ion generator and a manufacturing method thereof. Background Art

[0002] Air pollution is a very important aspect of environmental pollution. Gaseous pollutants not only cause harm to local areas near the pollution source, but also can be transported to quite far places through diffusion and drift, causing large-scale pollution. With people's increasing attention to personal health, it has become an urgent task for environmental protection to decompose pollutants in the air into non-toxic and harmless substances in occasions such as indoor formaldehyde removal and in-car air purification, which require purification of pollutants in the air. Low-temperature negative oxygen ions have the advantages of low energy consumption, high removal efficiency, convenient and fast use, and no site restrictions in the treatment of harmful gas pollutants, and therefore are increasingly valued by people.

[0003] The materials of existing low-temperature negative oxygen ion generators are mainly divided into quartz, metal, and ceramic, each with a corresponding scope of use and characteristics. The main body of a quartz negative oxygen ion generator is usually a quartz glass cavity, and the electrodes are distributed on the inner wall or center of the quartz tube. Quartz material has low mechanical strength and is easy to break when subjected to external impact or temperature changes. In addition, quartz material is difficult to process, which limits its application in complex structural designs. More importantly, the automated surface mount welding process cannot be achieved during the welding process; metal materials are strong and durable, and metal electrodes can be directly connected to the power supply with high energy consumption. There is a problem of excessive electrical and thermal conductivity. The processing accuracy of metal electrodes may lead to uneven distribution of the electric and thermal fields inside the negative oxygen ion generator, affecting the yield of negative oxygen ions. In addition, metal materials are prone to oxidation and corrosion. Summary of the invention

[0004] In order to solve the problems in the prior art that the low-temperature negative oxygen ion generators made of quartz and metal materials are not resistant to external impact, are not resistant to high temperature, are difficult to assemble and weld, and have uneven internal electric field distribution, a low-temperature negative oxygen ion generator and a manufacturing method are proposed;

[0005] A low-temperature negative oxygen ion generator comprises: a device layer and an electrode end, wherein the electrode end is arranged at the left and right ends of the device layer, and the electrode end is used to input an external voltage to the device layer; the device layer is used to generate negative oxygen ions according to the input voltage;

[0006] The device layer includes a No. 1 ceramic layer, a No. 1 electrode layer, a No. 2 ceramic layer, a support layer, a No. 3 ceramic layer, a No. 2 electrode layer and a No. 4 ceramic layer, which are arranged in sequence from top to bottom; the support layer includes a plurality of support sheets; the plurality of support sheets are arranged at equal intervals in the support layer, and negative oxygen ion holes are formed between two adjacent support sheets; a No. 1 lead hole is provided at one end of the No. 1 ceramic layer; a No. 2 lead hole is provided at the other ends of the No. 1 ceramic layer, the No. 2 ceramic layer and the No. 3 ceramic layer; the No. 1 electrode layer is connected to the No. 1 electrode end through the No. 1 lead hole, and the No. 2 electrode layer is connected to the No. 2 electrode end through the No. 2 lead hole;

[0007] Electrode terminal No. 1 is used to input external voltage to electrode layer No. 1, and electrode terminal No. 2 is used to input external voltage to electrode layer No. 2; electrode layer No. 1 and electrode layer No. 2 are used to excite oxygen molecules in negative oxygen ion holes to generate negative oxygen ions according to the input voltage.

[0008] A method for manufacturing a low-temperature negative oxygen ion generator, comprising:

[0009] Step 1: Prepare four layers of ceramic cast sheets, which are used to form ceramic layer No. 1, ceramic layer No. 2, ceramic layer No. 3 and ceramic layer No. 4 respectively; punch holes at one end of ceramic layer No. 1, the other end of ceramic layer No. 1, the other end of ceramic layer No. 2 and the other end of ceramic layer No. 3 by punching technology; prepare multiple support sheets of the same size;

[0010] Step 2: preparing electrode layer No. 1 between ceramic layer No. 1 and ceramic layer No. 2, and preparing electrode layer No. 2 between ceramic layer No. 3 and ceramic layer No. 4 by screen printing;

[0011] Step 3: stacking the layers in the order of No. 1 ceramic layer, No. 1 electrode layer, No. 2 ceramic layer, support layer, No. 3 ceramic layer, No. 2 electrode layer and No. 4 ceramic layer from top to bottom; wherein the support layer comprises a plurality of support sheets, the distance between every two adjacent support sheets is the same, and a volatile block is arranged between two adjacent support sheets;

[0012] Step 4: combining the ceramic layers stacked in step 3 by static pressing technology;

[0013] Step 5: The statically pressed ceramic layer, electrode layer and support layer are sintered to form a device layer by sintering technology; the volatile block is volatilized after sintering to form negative oxygen ion cavities;

[0014] Step six: Prepare pad No. 2 above one end of ceramic layer No. 1 and pad No. 1 above the other end of ceramic layer No. 1 by screen printing; prepare pad No. 3 below one end of ceramic layer No. 4 and pad No. 4 below the other end of ceramic layer No. 4; use metallization encapsulation process to connect pad No. 2 and pad No. 3 together to form electrode end No. 1, and connect pad No. 1 and pad No. 4 together to form electrode end No. 1.

[0015] Beneficial Effects

[0016] The low-temperature negative oxygen ion generator of the present application includes a device layer and an electrode end, the electrode end is arranged at the left and right ends of the device layer, and the electrode end inputs an external voltage to the device layer; the device layer generates negative oxygen ions according to the input voltage; the device layer includes multiple ceramic layers, two electrode layers, and a support layer; the multiple electrode layers and the two electrode layers are arranged alternately, and the support layer contains negative oxygen ion holes; the two electrode ends apply high voltage electricity to the two electrode layers, and the two electrode layers excite oxygen molecules in the negative oxygen ion holes under the action of voltage to generate negative oxygen ions; multiple ceramic layers are used in the negative oxygen ion generator of the present application, and the ceramic material has excellent insulation performance and high temperature resistance, and can withstand the electric field in the process of forming negative oxygen ions in a high-energy electric field. The corona discharge effect effectively avoids leakage and short circuit, optimizes the electric field distribution inside the generator, and improves the stability and efficiency of the generation of negative oxygen ions. At the same time, the ceramic material has high strength and stable structure, and can resist external impact. The metallized ceramic can withstand high-temperature soldering above 300°C, and can realize automated surface mount welding process to improve production efficiency. The negative oxygen ion generator is designed and manufactured based on ceramic co-firing process technology. The manufacturing process is mature and easy to realize mass production of negative oxygen ion generators, and the batch consistency and repeatability are improved. It adopts integrated structure molding, small device size, high mechanical strength, excellent vibration and impact resistance, easy welding and installation, and high yield rate using automated surface mount welding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is an explosion diagram of a low-temperature negative oxygen ion generator according to a specific embodiment of the present application;

[0018] Figure 2 This is a front view of a low-temperature negative oxygen ion generator according to a specific embodiment of the present application;

[0019] Figure 3 This is a three-dimensional structural diagram of a low-temperature negative oxygen ion generator according to a specific implementation method of this application.

[0020] In the figure, 1 is ceramic layer No. 1, 2 is electrode layer No. 1, 3 is ceramic layer No. 2, 4 is ceramic layer No. 3, 5 is electrode layer No. 2, 6 is ceramic layer No. 4, 7-1 is soldering pad No. 1, 7-2 is soldering pad No. 2, 7-3 is soldering pad No. 3, 7-4 is soldering pad No. 4, 8-1 is lead hole No. 1, 8-2 is lead hole No. 2, and 9 is negative oxygen ion hole. DETAILED DESCRIPTION

[0021] Specific implementation method 1: The following will be combined with the attached embodiment of the present invention Figure 1 To Attachment Figure 3 , illustrate this implementation mode, and clearly and completely describe the technical solutions in the embodiments of the present invention:

[0022] A low-temperature negative oxygen ion generator comprises: a device layer and an electrode end, wherein the electrode end is arranged at the left and right ends of the device layer, and the electrode end is used to input an external voltage to the device layer; the device layer is used to generate negative oxygen ions according to the input voltage;

[0023] The device layer includes a No. 1 ceramic layer, a No. 1 electrode layer, a No. 2 ceramic layer, a support layer, a No. 3 ceramic layer, a No. 2 electrode layer and a No. 4 ceramic layer, which are arranged in sequence from top to bottom; the support layer includes a plurality of support sheets; the plurality of support sheets are arranged at equal intervals in the support layer, and negative oxygen ion holes are formed between two adjacent support sheets; a No. 1 lead hole is provided at one end of the No. 1 ceramic layer; a No. 2 lead hole is provided at the other ends of the No. 1 ceramic layer, the No. 2 ceramic layer and the No. 3 ceramic layer; the No. 1 electrode layer is connected to the No. 1 electrode end through the No. 1 lead hole, and the No. 2 electrode layer is connected to the No. 2 electrode end through the No. 2 lead hole;

[0024] Electrode terminal No. 1 is used to input external voltage to electrode layer No. 1, and electrode terminal No. 2 is used to input external voltage to electrode layer No. 2; electrode layer No. 1 and electrode layer No. 2 are used to excite oxygen molecules in negative oxygen ion holes to generate negative oxygen ions according to the input voltage.

[0025] Specifically, multiple ceramic layers are made of ceramic material, which has better insulation performance and high temperature resistance. It can optimize the electric field distribution inside the generator, effectively avoid leakage and short circuit, and can withstand the high temperature environment during the generation of negative oxygen ions, thereby improving the stability and efficiency of the generation of negative oxygen ions.

[0026] Further, electrode end No. 1 includes pad No. 2 and pad No. 3, and electrode end No. 2 includes pad No. 1 and pad No. 4;

[0027] The No. 2 soldering pad is arranged above one end of the No. 1 ceramic layer, the No. 3 soldering pad is arranged below one end of the No. 4 ceramic layer, and the No. 2 soldering pad is connected to the No. 3 soldering pad; the No. 1 soldering pad is arranged above the other end of the No. 1 ceramic layer, the No. 4 soldering pad is arranged below the other end of the No. 4 ceramic layer, and the No. 1 soldering pad is connected to the No. 4 soldering pad;

[0028] Pad No. 2 and pad No. 3 are used to input external voltage to electrode layer No. 1, and pad No. 1 and pad No. 4 are used to input external voltage to electrode layer No. 2.

[0029] Specifically, when negative oxygen ions are generated using the low-temperature negative oxygen ion generator of the present application, a high voltage current is loaded between electrode layer No. 1 and electrode layer No. 2 through a boost amplifier circuit. There are ceramic layer No. 2, ceramic layer No. 3 and negative oxygen ion holes between the electrodes. The high voltage electricity excites the oxygen molecules in the holes to become negative oxygen ions. By changing parameters such as the facing area of ​​electrode layer No. 1 and electrode layer No. 2, the length of the negative oxygen ion holes, and the internal resistance of electrode layer No. 1 and electrode layer No. 2, negative oxygen ions of different concentrations can be generated.

[0030] Furthermore, the length of the negative oxygen ion hole ranges from 1 / 4 to 4 / 5 of the total length of the low-temperature negative oxygen ion generator.

[0031] Specifically, the concentration of negative oxygen ions generated by the low-temperature negative oxygen ion generator can be changed by changing the negative oxygen ion hole length.

[0032] Furthermore, the concentration of negative oxygen ions at 5 cm from the low-temperature negative oxygen ion generator ranges from 3×10 6 pcs / cm 3 Up to 50×10 6 pcs / cm 3 .

[0033] Furthermore, the support sheet is made of ceramic material. Specific implementation method 2:

[0035] A method for manufacturing a low-temperature negative oxygen ion generator, comprising:

[0036] Step 1: Prepare four layers of ceramic cast sheets, which are used to form ceramic layer No. 1, ceramic layer No. 2, ceramic layer No. 3 and ceramic layer No. 4 respectively; punch holes at one end of ceramic layer No. 1, the other end of ceramic layer No. 1, the other end of ceramic layer No. 2 and the other end of ceramic layer No. 3 by punching technology; prepare multiple support sheets of the same size;

[0037] Step 2: preparing electrode layer No. 1 between ceramic layer No. 1 and ceramic layer No. 2, and preparing electrode layer No. 2 between ceramic layer No. 3 and ceramic layer No. 4 by screen printing;

[0038] Step 3: stacking the layers in the order of No. 1 ceramic layer, No. 1 electrode layer, No. 2 ceramic layer, support layer, No. 3 ceramic layer, No. 2 electrode layer and No. 4 ceramic layer from top to bottom; wherein the support layer comprises a plurality of support sheets, the distance between every two adjacent support sheets is the same, and a volatile block is arranged between two adjacent support sheets;

[0039] Step 4: combining the ceramic layers stacked in step 3 by static pressing technology;

[0040] Step 5: The statically pressed ceramic layer, electrode layer and support layer are sintered to form a device layer by sintering technology; the volatile block is volatilized after sintering to form negative oxygen ion cavities;

[0041] Step six: Prepare pad No. 2 above one end of ceramic layer No. 1 and pad No. 1 above the other end of ceramic layer No. 1 by screen printing; prepare pad No. 3 below one end of ceramic layer No. 4 and pad No. 4 below the other end of ceramic layer No. 4; use metallization encapsulation process to connect pad No. 2 and pad No. 3 together to form electrode end No. 1, and connect pad No. 1 and pad No. 4 together to form electrode end No. 1.

[0042] Furthermore, the volatilization block is made of graphite; and the support sheet is made of ceramic material.

[0043] Specifically, in terms of welding technology, ceramic materials have high strength and stable structure. Metallized ceramics can withstand high-temperature soldering above 300°C, which can realize automated surface-mount welding technology and improve production efficiency. The co-sintering process can accurately control the microstructure of ceramic components, optimize the electrical properties of materials, enhance the efficiency and stability of negative oxygen ion generation, help realize complex internal structures, and optimize the excitation and transmission process of negative oxygen ions. The low-temperature negative oxygen ion generator prepared by the co-sintering process has the characteristics of strong structural integrity, small size, high ionization efficiency, and easy installation.

[0044] Although the present invention is described herein with reference to specific embodiments, it should be understood that these embodiments are merely examples of the principles and applications of the present invention. It should therefore be understood that many modifications may be made to the exemplary embodiments and that other arrangements may be devised without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that the various dependent claims and features described herein may be combined in a manner different from that described in the original claims. It should also be understood that features described in conjunction with individual embodiments may be used in other described embodiments.

Claims

1. A low-temperature negative oxygen ion generator, characterized in that: include: The device layer and the electrode terminal, the electrode terminal is arranged at the left and right ends of the device layer, and the electrode terminal is used to input the external voltage into the device layer; The device layer is used to generate negative oxygen ions according to the input voltage; The device layer includes a No. 1 ceramic layer, a No. 1 electrode layer, a No. 2 ceramic layer, a support layer, a No. 3 ceramic layer, a No. 2 electrode layer and a No. 4 ceramic layer, which are arranged in sequence from top to bottom; the support layer includes a plurality of support sheets; the plurality of support sheets are arranged at equal intervals in the support layer, and negative oxygen ion holes are formed between two adjacent support sheets; a No. 1 lead hole is provided at one end of the No. 1 ceramic layer; a No. 2 lead hole is provided at the other ends of the No. 1 ceramic layer, the No. 2 ceramic layer and the No. 3 ceramic layer; the No. 1 electrode layer is connected to the No. 1 electrode end through the No. 1 lead hole, and the No. 2 electrode layer is connected to the No. 2 electrode end through the No. 2 lead hole; Electrode terminal No. 1 is used to input external voltage to electrode layer No. 1, and electrode terminal No. 2 is used to input external voltage to electrode layer No. 2; electrode layer No. 1 and electrode layer No. 2 are used to excite oxygen molecules in negative oxygen ion holes to generate negative oxygen ions according to the input voltage.

2. A low-temperature negative oxygen ion generator according to claim 1, characterized in that: Electrode end No. 1 includes pad No. 2 and pad No. 3, and electrode end No. 2 includes pad No. 1 and pad No. 4; The No. 2 soldering pad is arranged above one end of the No. 1 ceramic layer, the No. 3 soldering pad is arranged below one end of the No. 4 ceramic layer, and the No. 2 soldering pad is connected to the No. 3 soldering pad; the No. 1 soldering pad is arranged above the other end of the No. 1 ceramic layer, the No. 4 soldering pad is arranged below the other end of the No. 4 ceramic layer, and the No. 1 soldering pad is connected to the No. 4 soldering pad; Pad No. 2 and pad No. 3 are used to input external voltage to electrode layer No. 1, and pad No. 1 and pad No. 4 are used to input external voltage to electrode layer No.

2.

3. A low-temperature negative oxygen ion generator according to claim 1, characterized in that: The length of the negative oxygen ion hole ranges from 1 / 4 to 4 / 5 of the total length of the low-temperature negative oxygen ion generator.

4. A low-temperature negative oxygen ion generator according to claim 1, characterized in that: The concentration of negative oxygen ions at 5 cm from the low-temperature negative oxygen ion generator ranges from 3×10 6 pcs / cm 3 Up to 50×10 6 pcs / cm 3 .

5. A low-temperature negative oxygen ion generator according to claim 1, characterized in that: The support plate is made of ceramic material.

6. A method for manufacturing a low-temperature negative oxygen ion generator, characterized in that: include: Step 1: Prepare four layers of ceramic cast sheets, which are used to form ceramic layer No. 1, ceramic layer No. 2, ceramic layer No. 3 and ceramic layer No. 4 respectively; Punching holes are made at one end of the No. 1 ceramic layer, the other end of the No. 1 ceramic layer, the other end of the No. 2 ceramic layer, and the other end of the No. 3 ceramic layer by punching technology; and a plurality of support sheets of the same size are made; Step 2: preparing electrode layer No. 1 between ceramic layer No. 1 and ceramic layer No. 2, and preparing electrode layer No. 2 between ceramic layer No. 3 and ceramic layer No. 4 by screen printing; Step 3: stacking the layers in the order of No. 1 ceramic layer, No. 1 electrode layer, No. 2 ceramic layer, support layer, No. 3 ceramic layer, No. 2 electrode layer and No. 4 ceramic layer from top to bottom; wherein the support layer comprises a plurality of support sheets, the distance between every two adjacent support sheets is the same, and a volatile block is arranged between two adjacent support sheets; Step 4: combining the ceramic layers stacked in step 3 by static pressing technology; Step 5: The statically pressed ceramic layer, electrode layer and support layer are sintered to form a device layer by sintering technology; the volatile block is volatilized after sintering to form negative oxygen ion cavities; Step six: Prepare pad No. 2 above one end of ceramic layer No. 1 and pad No. 1 above the other end of ceramic layer No. 1 by screen printing; prepare pad No. 3 below one end of ceramic layer No. 4 and pad No. 4 below the other end of ceramic layer No. 4; use metallization encapsulation process to connect pad No. 2 and pad No. 3 together to form electrode end No. 1, and connect pad No. 1 and pad No. 4 together to form electrode end No.

1.

7. The method for manufacturing a low-temperature negative oxygen ion generator according to claim 6, characterized in that: The volatile block is made of graphite; the support plate is made of ceramic material.

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