Search

CN-224203058-U - Penetration point detector and detection equipment

CN224203058UCN 224203058 UCN224203058 UCN 224203058UCN-224203058-U

Abstract

The utility model relates to the technical field of pore detection and discloses a penetration point detector and detection equipment. The penetration point detector comprises an air supply piece, a mounting piece and color development test paper, wherein the air supply piece is provided with an air inlet and a mounting port, the air inlet is used for communicating an air source, the mounting piece is movably arranged on the air supply piece, the mounting piece is provided with a detection port communicated with the mounting port, the detection port is used for fixing a sample, and the color development test paper is positioned on one side of the sample, which is away from the mounting port. The penetration point detector can meet the requirements of low detection limit and defect distribution detection.

Inventors

  • ZHANG BIWU
  • XU XIUYUAN
  • CHEN LIANG

Assignees

  • 广州方邦电子股份有限公司
  • 珠海达创电子有限公司

Dates

Publication Date
20260505
Application Date
20250508

Claims (10)

  1. 1. A penetration point detector, comprising: the air supply piece (1) is provided with an air inlet (101) and an installation opening (102), and the air inlet (101) is used for communicating an air source; The mounting piece (2) is movably arranged on the air supply piece (1), the mounting piece (2) is provided with a detection port communicated with the mounting port (102), and the detection port is used for fixing a sample (9); And the color development test paper (3) is positioned on one side of the sample (9) away from the mounting port (102).
  2. 2. The penetration point detector according to claim 1, wherein the sample (9) is located between the mounting member (2) and the air supply member (1), the mounting member (2) includes an outer frame (201), and the outer frame (201) presses the sample (9) and the color development test paper (3) against an opening wall of the mounting opening (102).
  3. 3. The penetration point detector of claim 2 wherein the housing (201) encloses the detection port, the mount (2) further comprising a carrier web (202), the carrier web (202) being disposed on the housing (201), the carrier web (202) supporting the sample (9).
  4. 4. A penetration point detector according to claim 3, characterized in that the open area ratio of the carrier web (202) is greater than 80%.
  5. 5. The penetration point detector according to claim 2, further comprising a first seal arranged between the air supply (1) and the sample (9) and/or the first seal arranged between the outer frame (201) and the sample (9).
  6. 6. The penetration point detector according to claim 1, characterized in that the mount (2) is detachably arranged on the mouth wall of the mounting mouth (102); The mounting piece (2) is provided with a first quick-dismantling structure (203), and the air supply piece (1) is provided with a second quick-dismantling structure (103) matched with the first quick-dismantling structure (203).
  7. 7. The apparatus according to any one of claims 1 to 6, further comprising a cover (4), wherein the cover (4) is covered on the detection port, and the mounting member (2) is disposed between the cover (4) and the air supply member (1).
  8. 8. The penetration point detector of claim 7 further comprising a second seal by which the cover (4) sealingly engages the mounting member (2).
  9. 9. The penetration point detector of claim 7 wherein the cover (4) includes a pressure relief vent (401), the pressure relief vent (401) communicating with the detection port.
  10. 10. A detection apparatus, characterized by comprising: the penetration point detector of any one of claims 1 to 9; And the gas cylinder (5) is communicated with the gas inlet (101) and is used for providing detection gas, and the detection gas is suitable for carrying out color reaction with the color development test paper (3).

Description

Penetration point detector and detection equipment Technical Field The utility model relates to the technical field of pore detection, in particular to a penetration point detector and detection equipment. Background The copper foil is a raw material of products such as a circuit board, a lithium battery pole piece and the like, pinholes and penetration points are two common defects in the production process of the copper foil, and the copper foil has important significance for detecting and controlling the defects and improving the performance of the copper foil. Some related technologies adopt a backlight detection or high-resolution camera shooting detection mode to detect defects, so that the positions of the defects can be accurately identified, but the mode is only suitable for detecting transparent pinholes, and is difficult to detect opaque inclined pinholes and penetration defects in the copper foil, and the pore conditions of the copper foil cannot be accurately reflected. Other related technologies are characterized in that dilute sulfuric acid is coated on the surface of a copper foil, and the penetration condition of the dilute sulfuric acid on the surface of the copper foil is observed to detect pinholes and penetration points, so that opaque inclined pinholes and penetration defects can be detected, but the surface tension and capillary action of liquid exist, the penetrable pore diameter is usually in the micrometer level (1-10 mu m), the penetration effect on pores smaller than 1 mu m is insufficient, the detection limit is high, and penetration points still exist when a copper foil product qualified by coating detection is pressed at a high temperature, so that the requirement of high-precision copper foil production cannot be met. There are also related technologies in which the copper foil is pressurized from one side, the porosity (i.e., the sum of needle hole rate and permeability) of the copper foil is reflected by detecting the pressure change of the gas at the other side of the copper foil after a certain period of time, and the gas has a stronger penetration capacity, so that the unqualified copper foil product can be detected more accurately, but the pressure change of the gas cannot reflect the specific distribution of pinholes and penetration points on the copper foil, so that it is difficult to provide a reference for subsequent process improvement and defect control. Therefore, it is difficult to satisfy the requirements of low detection limit and defect distribution detection in the existing detection method. Disclosure of utility model In view of the above, the present utility model provides a penetration point detector and a detection device, so as to solve the problem that the existing defect detection method is difficult to meet the requirements of low detection limit and defect distribution detection. The utility model provides a penetration point detector which comprises an air supply piece, a mounting piece and color development test paper, wherein the air supply piece is provided with an air inlet and a mounting port, the air inlet is used for communicating an air source, the mounting piece is movably arranged on the air supply piece, the mounting piece is provided with a detection port communicated with the mounting port, the detection port is used for fixing a sample, and the color development test paper is positioned on one side of the sample, which is away from the mounting port. The test paper has the advantages that during detection, the test paper is arranged on the mounting part, the air supply part is communicated with the air source, the air source provides air which can react with the color development test paper, the air enters the air supply part through the air inlet and then is blown to the test paper at the detection port through the mounting port, the air can pass through tiny pinholes and permeation points in the test paper to reach the color development test paper at the other side of the test paper, so that the corresponding position on the color development test paper changes color, on one hand, the air has stronger penetrability, pores below the micron level can be detected, the permeation point detector has lower detection limit, on the other hand, the color development reaction can only occur in the area contacted with the air on the color development test paper, and the distribution of color change positions can reflect the specific distribution situation of pinholes and permeation points on the copper foil, so that the permeation point detector can meet the requirements of low detection limit and defect distribution detection. In an alternative embodiment, the sample is located between the mounting member and the air supply member, and the mounting member includes an outer frame that compresses the sample and the color test paper against the mouth wall of the mounting mouth. The air pressure sensor has the beneficial effects that the sample i