A quality detection method for built-in power field electric module

Abstract

The application relates to a quality detection method for an embedded power field electric module, belonging to the technical field of air purification, wherein S100, an external power source and an embedded power source of the field electric module are connected in series to form a power-on loop; S300, a detection element is connected in parallel with the field electric module, the detection element is in contact with a metal needle of the field electric module, the voltage value of the detection element is observed in real time, if the voltage value is not in a preset voltage range, it is indicated that a conductive component in the field electric module is not effectively electrically connected, so that a circuit breaking fault occurs in the field electric module, in the application, the detection element is in contact with the metal needle of the field electric module, the electric connection reliability of the conductive component in the field electric module is determined from the outside of the field electric module by observing the voltage value, the quality of the field electric module is detected, the defective products are prevented from flowing into the market, and it is ensured that the field electric module will not appear the circuit breaking fault in actual application.

Description

Technical Field

[0001] This invention belongs to the field of air purification technology, and specifically relates to a quality testing method for a built-in power field module. Background Technology

[0002] Currently, the mainstream air purification technologies are divided into traditional filtration technology and traditional electrostatic technology.

[0003] Traditional filtration technology uses fibers and fiber-based filter materials to filter or adsorb pollutants in the air, thus purifying the air. While the technology is mature and relatively stable, labor, material, operating, and maintenance costs are very high, and improper maintenance can pose certain safety risks. As the filter material continuously intercepts pollutants, the gaps between the fibers become increasingly clogged, increasing air resistance. Therefore, frequent cleaning and replacement of the filter material are necessary. Furthermore, bacteria and viruses trapped in the filter material can lead to bacterial growth, mold growth, and unpleasant odors.

[0004] Traditional electrostatic technology uses an ionization zone to charge particulate matter in the gas. The charged particles are then adsorbed by the electric field formed in the dust collection zone, completing the purification process. Various high-voltage electrostatic dust removal devices developed based on the principles of traditional electrostatic technology can purify a wide range of particulate pollutants across various flow rates. They can operate relatively stably under different temperatures and humidity conditions and are well-suited for air filtration in residential, commercial, industrial, tunnel, and subway applications. They feature long service life, high purification efficiency, low operating costs, and low maintenance costs. Currently, there is a point-ring structure field electrostatic module on the market, including materials such as discharge tips, metal plates, and insulating frames, such as the CN206094315U air purifier ion cloud generator. The points in the field electrostatic module are generally metal needles, and the rings are approximately circular or circular metal holes. The ionization zone formed by the metal needles and holes ionizes the passing air, causing the air particles to acquire the same charge. The charged particles then flow through the electric field formed by the dust collection device and are captured by the dust collection plate, completing the air purification. After the field-electric module is manufactured, the different metal needles are connected at the bottom via conductive components and sealed internally with insulating material. Therefore, if the conductive components are not effectively connected, the field-electric module will experience an open circuit fault, affecting the overall purification performance of the product. Whether the conductive components are effectively connected cannot be determined from the outside of the field-electric module. Currently, there are no effective testing methods on the market to identify the reliability of the electrical connections of the conductive components inside the field-electric module. Summary of the Invention

[0005] To address the shortcomings of existing technologies and solve the aforementioned problems, a quality inspection method for built-in power field modules is proposed. This method determines the electrical connection reliability of the internal conductive components from the outside of the field module, thereby inspecting the quality of the field module, preventing defective products from entering the market, and ensuring that the field module will not experience open circuit failures in practical applications.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A quality testing method for a built-in power field module includes:

[0008] S100, the external power supply and the built-in power supply of the field power module are connected in series to form a power-carrying circuit;

[0009] S300: The detection element is connected in parallel with the field power module, and the metal pin of the detection element is in contact with the field power module. The voltage reading of the detection element is observed in real time. If the voltage value is not within the preset voltage range, it indicates that the conductive parts inside the field power module are not effectively electrically connected, causing the field power module to have an open circuit fault.

[0010] The technical solution is further configured such that, in S100, the external power supply is connected to the electrode contacts of the field power module through a conductive connector, thereby realizing the electrical connection between the external power supply and the built-in power supply of the field power module to form a power-conducting circuit, and the field power module is placed on the detection fixture.

[0011] The technical solution is further configured such that the conductive connector is disposed on the detection fixture, and the field electric module is pushed along the surface of the detection fixture to cause the conductive connector to connect with the electrode contact.

[0012] The technical solution is further configured such that the testing fixture includes a first side plate, and a first mounting hole for mounting the conductive connector is provided on the first side plate, and the connection between the first mounting hole and the conductive connector is insulated.

[0013] The technical solution is further configured such that the testing fixture includes a second side plate disposed opposite to the first side plate, the second side plate has a second mounting hole for mounting the conductive connector, the second mounting hole is insulated at the junction with the conductive connector, and the distance between the first side plate and the second side plate is adjustable.

[0014] The technical solution is further configured such that the testing fixture also includes a base plate, the base plate is in contact with the lower surface of the field electric module, a limiting through hole is opened on the second side plate, a limiting plate is provided on the base plate and embedded in the limiting through hole, and the second side plate can slide along the limiting plate to change the distance between the first side plate and the second side plate.

[0015] The technical solution is further configured such that a vertical plate is provided below the base plate, and a tension spring is provided between the vertical plate and the second side plate.

[0016] The technical solution is further configured such that the second side plate includes an upper side plate, a connecting plate, and a lower side plate. The upper side plate is parallel to the lower side plate and perpendicular to the bottom plate. The upper side plate, the connecting plate, and the lower side plate form a Z-shaped structure. The limiting through hole is located on the lower side plate.

[0017] The technical solution is further configured such that the conductive connector is a spring pin, the spring pin includes a housing, a spring and a pin, the housing has a cavity inside, the spring is located in the cavity, the first end of the pin extends into the cavity and is connected to the spring, and the second end of the pin is located outside the cavity.

[0018] The technical solution is further configured such that the first end of the ejector pin is connected to the external power source, the second end of the ejector pin is connected to the electrode contact, and the second end of the ejector pin is toothed or needle-shaped.

[0019] The technical solution is further configured such that, in S300, the detection element is a high-voltage rod, one end of which is electrically connected to an external power source, the other end of which is grounded, and the tip of which is in contact with the metal needle of the field electric module.

[0020] This technical solution is further configured such that, in S300, the metal pins of the field power module are arranged in a matrix structure, and the metal pins in adjacent rows or columns are electrically connected through conductive components. If the voltage value is not within the preset voltage range, it indicates that the conductive components inside the field power module are not effectively electrically connected, causing an open circuit fault in the field power module, including:

[0021] If the voltage value of the metal pin in the current row or column is within the preset voltage range, and the metal pins in the adjacent row or column have no voltage, it means that the conductive parts connecting the two rows or columns are not electrically connected.

[0022] If the voltage value of one or more metal pins in the current row or column is not within the preset voltage range, while the voltage values ​​of the other metal pins in the current row or column are within the preset voltage range, it indicates that there is no effective electrical connection between the one or more metal pins and the conductive component.

[0023] If all the metal pins of the field power module have no voltage, it indicates that there is no electrical connection between the field power module and the external power supply, or that the detection element is not effectively connected to the external power supply, or that the external power supply is damaged, or that the built-in power supply is damaged.

[0024] This technical solution is further configured such that, in S300, the method for determining the preset voltage range is as follows:

[0025] Under constant temperature and humidity conditions, for a field electric module with a specific structure, the voltage reading at its metal pin is a set value, and ±5% of the set value is used as the preset voltage range.

[0026] This technical solution is further configured such that, following S300, it also includes:

[0027] S500. After the test is completed, turn off the external power supply and electrically connect the metal needle to the metal plate of the field electric module to release the charge accumulated in the field electric module.

[0028] The beneficial effects of this invention are:

[0029] 1. The detection element contacts the metal pin of the field power module. By observing the voltage reading, the reliability of the electrical connection of the conductive parts inside the field power module is determined from the outside of the module. This process is used to test the quality of the field power module, prevent defective products from entering the market, and ensure that the field power module will not experience open circuit failures in practical applications.

[0030] 2. The spacing between the first side plate and the second side plate is adjustable to accommodate different specifications of field electric modules.

[0031] 3. The tension spring works in conjunction with the second side plate to achieve automatic reset of the second side plate and improve the fit between the second side plate and the field electric module.

[0032] 4. The second end of the ejector pin is designed to be toothed or needle-shaped to improve its contact stability with the electrode contacts. Attached Figure Description

[0033] Figure 1 This is a flowchart of the present invention;

[0034] Figure 2 This is a circuit diagram of the present invention;

[0035] Figure 3 This is a schematic diagram of the detection tooling in this invention;

[0036] Figure 4 This is a schematic diagram of the second side plate in this invention;

[0037] Figure 5 This is a side view of the second side plate in this invention;

[0038] Figure 6 This is a schematic diagram of the assembly of the vertical plate and the tension spring in this invention;

[0039] Figure 7 This is a schematic diagram of one embodiment of the conductive connector in this invention;

[0040] Figure 8 This is a schematic diagram of another embodiment of the conductive connector in this invention;

[0041] Figure 9 This is a structural schematic diagram of one embodiment of the electric field module of the present invention;

[0042] Figure 10 This is a schematic diagram of another embodiment of the electric field module of the present invention.

[0043] In the attached diagram: 1-External power supply, 2-Built-in power supply, 3-Field current module, 301-Metal pin, 302-Metal plate, 303-Insulating base, 304-Electrode contact, 4-Detection element, 5-Detection fixture, 502-First side plate, 504-First mounting hole, 505-Limiting plate, 506-Limiting through hole, 507-Second side plate, 508-Upper side plate, 509-Lower side plate, 510-Connecting plate, 511-Second mounting hole, 6-Vertical plate, 7-Tension spring, 8-Conductive connector, 801-Housing shell, 802-Pin, 803-Spring. Detailed Implementation

[0044] To enable those skilled in the art to better understand the technical solutions of the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Based on the embodiments in this application, other similar embodiments obtained by those skilled in the art without creative effort should all fall within the scope of protection of this application. Furthermore, directional terms mentioned in the following embodiments, such as "up," "down," "left," and "right," are only for reference to the directions in the accompanying drawings; therefore, the directional terms used are for illustrative purposes and not for limiting the invention.

[0045] Example 1:

[0046] like Figure 1 , Figure 2 As shown, a quality testing method for a built-in power field module includes:

[0047] S100, external power supply 1 and the built-in power supply 2 of the field power module are connected in series to form a power-carrying circuit;

[0048] S300, the detection element 4 is connected in parallel with the field power module 3, and the detection element 4 is in contact with the metal needle of the field power module 3. The voltage reading of the detection element 4 is observed in real time. If the voltage value is not within the preset voltage range, it indicates that the conductive parts inside the field power module 3 are not effectively electrically connected, causing the field power module 3 to have an open circuit fault.

[0049] The technical solution is further configured such that, in S100, the external power supply 1 is connected to the electrode contacts of the field power module 3 through the conductive connector 8, so as to realize the electrical connection between the external power supply 1 and the built-in power supply 2 of the field power module to form a power-conducting circuit, and the field power module 3 is placed on the detection fixture 5.

[0050] It is worth noting that the external power supply 1 provides power, while the built-in power supply 2 converts it into DC high voltage, which can be either negative or positive high voltage. The field electric module 3 forms an electric field that adsorbs charged particles and sterilizes them.

[0051] Specifically, such as Figures 9-10 As shown, the field power module 3 includes a metal needle 301, a metal plate 302, and an insulating base 303. The metal needle 301 is located on the insulating base 303. A near-square hole is formed in the metal plate 302, and the metal needle 301 is located on the axis at the center of the near-square hole. Conductive components are provided inside the insulating base 303 to achieve electrical connection between adjacent metal needles 301. A circular hole can also be formed in the metal plate; this is not a limitation. Furthermore, depending on the position of the electrode contacts 304, the power supply method of the field power module 3 is divided into same-side and opposite-side types. Figure 9 The structure shown is a same-side type. Figure 10 The structure shown is of the opposite side type.

[0052] like Figures 3-8 As shown, the conductive connector 8 is disposed on the detection fixture 5, and the field electric module 3 is pushed along the surface of the detection fixture 5 to cause the conductive connector 8 to connect with the electrode contact 304.

[0053] Specifically, the testing fixture 5 includes a first side plate 502, on which a first mounting hole 504 for mounting the conductive connector 8 is provided. It is worth noting that the first side plate 502 can be made of an insulating material. Alternatively, the first side plate 502 can be made of a conductive material, with insulation treatment only applied at the junction of the first mounting hole 504 and the conductive connector 8. Multiple first mounting holes 504 are provided to match the spacing of the electrode contacts 304. When the electrode contacts 304 are located on the same side of the field-electric module 3, the conductive connector 8 can be mounted by selecting the first mounting hole 504 corresponding to the electrode contact 304.

[0054] It is worth noting that when the electrode contacts 304 are located on different sides of the field power module 3, the electrode contacts 304 on one side are connected to the conductive connector 8 on the first side plate 502, while the electrode contacts 304 on the other side can be connected to the external power supply 1 through other conductive elements. Alternatively, the detection fixture 5 includes a second side plate 507 disposed opposite to the first side plate 502, and the second side plate 507 has a second mounting hole 511 for mounting the conductive connector 8. The second side plate 507 may be made of an insulating material. Alternatively, the second side plate 507 may be made of a conductive material, with insulation treatment only applied at the junction of the second mounting hole 511 and the conductive connector 8. Furthermore, multiple second mounting holes 511 are provided to match the spacing of the electrode contacts 304.

[0055] The technical solution is further configured such that the distance between the first side plate 502 and the second side plate 507 is adjustable to accommodate field electric modules 3 of different specifications.

[0056] Specifically, the testing fixture 5 also includes a base plate 501, which is in contact with the lower surface of the field electric module 3. A limiting through hole 506 is provided on the second side plate 507. A limiting plate 505 is provided on the base plate 501 and embedded in the limiting through hole 506. The second side plate 507 can slide along the limiting plate 505 to change the distance between the first side plate 502 and the second side plate 507.

[0057] This technical solution is further configured such that a vertical plate 6 is provided below the base plate 501, and a tension spring 7 is provided between the vertical plate 6 and the second side plate 507. The tension spring 7 cooperates with the second side plate 507 to achieve automatic reset of the second side plate 507 and improve the fit between the second side plate 507 and the field electric module 3. Alternatively, a simple device for fixing the tension spring, such as a hook, can be provided below the base plate 501.

[0058] Specifically, the second side plate 507 includes an upper side plate 508, a connecting plate 510, and a lower side plate 509. The upper side plate 508 and the lower side plate 509 are parallel to and perpendicular to the base plate 501. The two ends of the connecting plate 510 are connected to the upper side plate 508 and the lower side plate 509, respectively. The upper side plate 508, the connecting plate 510, and the lower side plate 509 form a Z-shaped structure. The limiting through hole 506 is located on the lower side plate 509 to prevent the second side plate 507 from tilting under the tension of the tension spring 7. The lower side plate 509 has a certain thickness to further prevent the second side plate 507 from tilting under the tension of the tension spring 7.

[0059] This technical solution is further configured such that the detection fixture 5 also includes a back plate 503, which is attached to the side of the field electric module 3. Specifically, the back plate 503 may be made of an insulating material. Alternatively, the back plate 503 may be made of a conductive material, with insulation treatment only applied to the area where the back plate 503 is attached to the field electric module 3.

[0060] The technical solution is further configured such that the conductive connector 8 is a spring pin, the spring pin includes a housing 801, a spring 803 and a pin 802, the housing 801 has a cavity inside, the spring 803 is located in the cavity, the first end of the pin 802 extends into the cavity and is connected to the spring 803, and the second end of the pin 802 is located outside the cavity.

[0061] The technical solution is further configured such that the first end of the ejector pin 802 is connected to the external power supply 1, the second end of the ejector pin 802 is connected to the electrode contact 304, and the second end of the ejector pin 802 is toothed or needle-shaped to improve its contact stability with the electrode contact 304.

[0062] This technical solution is further configured such that, in S300, the detection element 4 is a high-voltage rod, one end of which is electrically connected to an external power supply 1, the other end of which is grounded, and the tip of which is in contact with the metal needle 301 of the field power module. The high-voltage rod can display the voltage value, which is existing technology in the market. The high-voltage rod can also be in other forms of combination.

[0063] The technical solution is further configured such that, in S300, the metal pins 301 of the field power module 3 are arranged in a matrix structure, and the metal pins 301 in adjacent rows or adjacent columns are electrically connected through conductive components. If the voltage value is not within the preset voltage range, it indicates that the conductive components inside the field power module 3 are not effectively electrically connected, causing the field power module 3 to have an open circuit fault.

[0064] It is worth noting that, to ensure detection accuracy, the tip of the high-voltage rod contacts each of the metal needles 301 of the field electric module one by one. In some other embodiments, to improve detection efficiency, the tip of the high-voltage rod may contact several metal needles 301 in the same row or column.

[0065] This technical solution is further configured such that, in S300, the method for determining the preset voltage range is as follows:

[0066] Under constant temperature and humidity conditions, for a field electric module 3 with a specific structure, the voltage reading at its metal pin 301 is a set value, and ±5% of the set value is used as the preset voltage range.

[0067] This technical solution is further configured such that, following S300, it also includes:

[0068] S500. After the test is completed, turn off the external power supply 1, and electrically connect the metal needle 301 to the metal plate 302 of the field electric module to release the charge accumulated in the field electric module 3 and improve safety.

[0069] Example 2:

[0070] like Figures 1 to 10 As shown, the parts that are the same as those in Embodiment 1 will not be repeated here. The differences are as follows:

[0071] If the voltage value of the metal pin 301 in the current row or column is within the preset voltage range, and the metal pin 301 in the adjacent row or column has no voltage, it indicates that the conductive components connecting the two rows or columns are not electrically connected.

[0072] by Figure 9For example, if the voltage value of the metal pin 301 in the first row is within the preset voltage range, and the metal pin 301 in the second row has no voltage, it indicates that the conductive components connecting the first and second rows are not electrically connected. If the voltage value of the metal pin 301 in the first row is within the preset voltage range (the metal pin 301 in the first row is connected to the output terminal of the built-in power supply 2), and the metal pins 301 in the second and third rows have no voltage, it indicates that the conductive components connecting the first and second rows are not electrically connected.

[0073] If the voltage value of one or more metal pins 301 in the current row or column is not within the preset voltage range, while the voltage values ​​of other metal pins 301 in the current row or column are within the preset voltage range, it indicates that there is no effective electrical connection between the one or more metal pins 301 and the conductive component.

[0074] If all the metal pins 301 of the field power module have no voltage, it indicates that there is no electrical connection between the field power module 3 and the external power supply 1, or that the detection element 4 and the external power supply 1 are not effectively connected, or that the external power supply 1 is damaged, or that the built-in power supply 2 is damaged.

[0075] The present invention has been described in detail above. The above description is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made in accordance with the scope of this application should still fall within the scope of the present invention.

Claims

1. A quality inspection method for a built-in power supply field module, characterized in that, include: S100, the external power supply and the built-in power supply of the field power module are connected in series to form a power-carrying circuit; S300: The detection element is connected in parallel with the field power module, and the metal pin of the detection element is in contact with the field power module. The voltage reading of the detection element is observed in real time. If the voltage value is lower than the preset voltage range, it indicates that the conductive parts inside the field power module are not effectively connected, causing the field power module to have an open circuit fault. The detection element is a high-voltage rod, one end of which is electrically connected to an external power source, the other end of which is grounded, and the tip of which is in contact with the metal needle of the field electric module. The metal pins of the field power module are arranged in a matrix structure, with adjacent rows or columns of metal pins electrically connected through conductive components. If the voltage value is lower than a preset voltage range, it indicates that the conductive components inside the field power module are not effectively electrically connected, causing an open circuit fault in the field power module, including: If the voltage value of the metal pin in the current row or column is within the preset voltage range, and the metal pin in the adjacent row or column has no voltage, it means that the conductive parts connecting the current row to its adjacent row or column to its adjacent column are not electrically connected. If the voltage value of one or more metal pins in the current row or column is lower than the preset voltage range, while the voltage values ​​of the other metal pins in the current row or column are within the preset voltage range, it indicates that there is no effective electrical connection between the one or more metal pins and the conductive component. If all the metal pins of the field power module have no voltage, it indicates that there is no electrical connection between the field power module and the external power supply, or that the detection element is not effectively connected to the external power supply, or that the external power supply is damaged, or that the built-in power supply is damaged. Under constant temperature and humidity conditions, for the field power module, the voltage reading at its metal pin is a set value, and ±5% of the set value is used as the preset voltage range.

2. The quality inspection method for a built-in power supply field module according to claim 1, characterized in that, In S100, the external power supply is connected to the electrode contacts of the field power module through a conductive connector, thereby realizing the electrical connection between the external power supply and the built-in power supply of the field power module to form a power-conducting circuit. The field power module is placed on the detection fixture.

3. The quality inspection method for a built-in power field module according to claim 2, characterized in that, The conductive connector is disposed on the detection fixture, and the field electric module is pushed along the surface of the detection fixture to cause the conductive connector to connect with the electrode contact.

4. The quality inspection method for a built-in power field module according to claim 3, characterized in that, The testing fixture includes a first side plate, on which a first mounting hole for mounting the conductive connector is provided, and the connection between the first mounting hole and the conductive connector is insulated.

5. A quality inspection method for a built-in power supply field module according to claim 4, characterized in that, The testing fixture includes a second side plate disposed opposite to the first side plate. The second side plate has a second mounting hole for mounting the conductive connector. The second mounting hole is insulated at the junction with the conductive connector. The distance between the first side plate and the second side plate is adjustable.

6. A quality inspection method for a built-in power supply field module according to claim 5, characterized in that, The testing fixture also includes a base plate, which is attached to the lower surface of the field electric module. A limiting through hole is opened on the second side plate, and a limiting plate embedded in the limiting through hole is provided on the base plate. The second side plate can slide along the limiting plate to change the distance between the first side plate and the second side plate.

7. A quality inspection method for a built-in power supply field module according to claim 6, characterized in that, A vertical plate is provided below the base plate, and a tension spring is provided between the vertical plate and the second side plate.

8. A quality inspection method for a built-in power supply field module according to claim 6 or 7, characterized in that, The second side plate includes an upper side plate, a connecting plate, and a lower side plate. The upper side plate is parallel to the lower side plate and perpendicular to the bottom plate. The upper side plate, the connecting plate, and the lower side plate form a Z-shaped structure. The limiting through hole is located on the lower side plate.

9. A quality inspection method for a built-in power supply field module according to claim 1, characterized in that, Following the S300 are: S500. After the test is completed, turn off the external power supply and electrically connect the metal needle to the metal plate of the field electric module to release the charge accumulated in the field electric module.

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