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CN-121993674-A - Liquid cooling plate air tightness test joint

CN121993674ACN 121993674 ACN121993674 ACN 121993674ACN-121993674-A

Abstract

The invention discloses a liquid cooling plate air tightness test connector which comprises a connector main body, wherein an air pipe connecting piece is arranged at one end of the connector main body, a sealing piece is arranged on the air pipe connecting piece, an adjusting sleeve is rotatably arranged in the connector main body, a plurality of spiral openings distributed along the circumferential direction of the adjusting sleeve are formed in the adjusting sleeve, a plurality of guide strips are axially arranged on the connector main body, a positioning rod capable of penetrating the spiral openings in a radially movable mode is inserted in a gap of each guide strip, a cylindrical elastic sleeve is arranged in the adjusting sleeve, the positioning rod penetrates through and is fixed on the elastic sleeve, a movable sleeve is arranged outside the connector main body in a movable sleeve, a plurality of protruding strips are arranged on the inner wall of the movable sleeve, an elastic piece is arranged between the movable sleeve and the connector main body, a limiting ring is arranged on the connector main body, and a guide surface is arranged at the matched end of each protruding strip and the positioning rod. The liquid-cooled plate air tightness test connector can be suitable for positioning liquid-cooled plate interface pipes with different axial positions of various positioning grooves, so that the detection cost is reduced, and the test efficiency is improved.

Inventors

  • PENG YONGJIU
  • ZHANG HUAICHANG
  • SHI XUEJUN

Assignees

  • 宁波弗克液压机械有限公司

Dates

Publication Date
20260508
Application Date
20260402

Claims (9)

  1. 1. The liquid cooling plate air tightness test joint comprises a joint main body (1), wherein one end of the joint main body (1) is provided with an air pipe connecting piece (2), the air pipe connecting piece (2) is positioned at one end in the joint main body (1) and is provided with a sealing piece (3), an adjusting sleeve (4) is rotationally arranged in the joint main body (1), a plurality of spiral openings (5) distributed along the circumferential direction of the adjusting sleeve (4) are arranged on the adjusting sleeve (4), a plurality of guide strips (6) are axially arranged on the joint main body (1), a positioning rod (7) penetrating into the spiral openings (5) and capable of moving radially is inserted in a gap of the guide strips (6), a cylindrical elastic sleeve (8) is arranged in the adjusting sleeve (4), the positioning rod (7) penetrates through and is fixed on the elastic sleeve (8), a movable sleeve (9) is arranged outside the joint main body (1), a plurality of raised strips (10) are arranged on the inner wall of the movable sleeve (9), a plurality of the raised strips (10) are matched with the adjacent guide strips (6) and the position of the positioning rod (7) is matched with the position of the elastic sleeve (1), the connector comprises a connector body (1) at the other end side of a movable sleeve (9), a limiting ring (12) is arranged on the connector body (1), the movable sleeve (9) is pushed by the elastic force of an elastic piece (11), the positioning rod (7) is pushed into the connector body (1) radially inwards by a convex strip (10) to be inserted into a positioning groove of a liquid cooling plate interface tube, and a guide surface (13) is arranged at the matched end of the convex strip (10) and the positioning rod (7).
  2. 2. A liquid cooling plate air tightness test joint according to claim 1, wherein the spiral opening (5) is intersected with a gap of at least two guide strips (6), at least two positioning rods (7) with different lengths are arranged in each spiral opening (5) in a penetrating mode, the positioning rods (7) with the same length in each spiral opening (5) are located in the same circular surface, a small diameter portion (14) for the protruding strips (10) to completely enter and rotate is arranged between the guide strips (6) and a supporting portion of the elastic piece (11), the elastic piece (11) is compressed by the movable sleeve (9) until the protruding strips (10) completely enter the small diameter portion (14), and then the movable sleeve (9) is rotated to switch the positioning rods (7) aligned with the protruding strips (10).
  3. 3. The liquid cooling plate air tightness test joint according to claim 1, wherein a positioning component is arranged between the adjusting sleeve (4) and the joint main body (1).
  4. 4. A liquid cooling plate air tightness test joint according to claim 3, wherein the positioning assembly comprises a plurality of slots (15) arranged at the end part of the joint main body (1), an extension part (16) arranged on the adjusting sleeve (4), an inserting block (17) movably penetrates through the extension part (16), and the inserting block (17) is inserted into any of the slots (15) to position the joint main body (1) and the adjusting sleeve (4).
  5. 5. A liquid-cooled panel airtightness test joint according to claim 1, wherein the guide surface (13) is an arc surface.
  6. 6. The liquid cooling plate air tightness test joint according to claim 1, wherein the outer end of the positioning rod (7) is a hemispherical surface.
  7. 7. A liquid cooling plate air tightness test joint according to claim 1, wherein the air pipe connecting piece (2) is in threaded connection with the joint main body (1).
  8. 8. A liquid cooling plate air tightness test joint according to claim 1, wherein the joint main body (1) comprises an air pipe connecting disc (18) and a guide cylinder body (19), the air pipe connecting disc (18) and the guide cylinder body (19) are spliced to form an annular groove (20), and an annular protrusion (21) which is rotationally matched in the annular groove (20) is arranged on the adjusting sleeve (4).
  9. 9. A liquid-cooled panel airtightness test joint according to claim 1, wherein the air pipe connection disc (18) and the guide cylinder part (19) are fixed by bolts.

Description

Liquid cooling plate air tightness test joint Technical Field The invention belongs to the technical field of liquid cooling plate detection equipment, and particularly relates to a liquid cooling plate air tightness test connector. Background The liquid cooling plate is used as a key heat dissipation part of high heat flux equipment such as a power battery of a new energy automobile, a data center server and the like, and the tightness of an internal flow channel of the liquid cooling plate is directly related to the safety and stability of the operation of the equipment. To ensure that the liquid cooling plate is free from risk of leakage of the cooling liquid during long-term operation, it must be subjected to a strict air tightness test before shipment. At present, when the air tightness test is carried out on the liquid cooling plate, the interface connection between the quick-plug type test connector and the liquid cooling plate is generally adopted. The existing air tightness test joint structure mainly comprises a joint main body, a sealing ring and a driving handle. The working principle is that the joint main body is inserted into the interface tube of the liquid cooling plate, the sleeve in the joint main body is axially moved by pulling the driving handle, and the sealing ring is extruded to radially expand, so that the sealing connection is realized by being tightly attached to the inner wall or the end face of the interface tube. However, existing test joints have the following technical limitations in application: 1. The existing air tightness test connector is generally of an integrated structure design, and the outer diameter size of a connector main body, the specification of a sealing ring and the matching position of the sealing ring and a positioning groove on a liquid cooling plate interface pipe are all fixed. However, in actual production, in order to meet different assembly space and flow requirements, the pipe diameter of the interface pipe, the pipe wall thickness and the axial position of the external positioning groove of the liquid cooling plates of different types have large differences. 2. The device has the advantages of high replacement cost and low detection efficiency, and because the existing connector cannot be compatible with various specifications, when the liquid cooling plates of different types are required to be subjected to switching test on the production line, an operator has to stop the machine to replace the special test connector matched with the liquid cooling plates. The method not only increases the purchase and inventory costs of the joint, but also occupies a large number of production man-hours due to frequent disassembly and assembly and debugging, and seriously affects the beat and the overall production efficiency of the air tightness detection. 3. The positioning accuracy is limited in that for a test joint which realizes axial fixation by means of being clamped into a positioning groove of a connector tube, when the position of the positioning groove deviates due to the change of product design, the existing joint with fixed size cannot be accurately clamped. If the sealing is locked and sealed forcibly, the joint is easy to slip or the sealing ring is easy to be worn off, and the test result is inaccurate or the liquid cooling plate interface is damaged. Disclosure of Invention Aiming at the defects of the prior art, the invention provides the liquid-cooling plate air tightness test connector, which can be flexibly adapted to universal liquid-cooling plate air tightness test connectors with different pipe diameters and different positioning groove positions, so as to reduce the detection cost and improve the test efficiency. In order to solve the technical problems, the liquid cooling plate air tightness test connector comprises a connector main body, wherein one end of the connector main body is provided with an air pipe connecting piece, one end of the air pipe connecting piece, which is positioned in the connector main body, is provided with a sealing piece, an adjusting sleeve is rotatably arranged in the connector main body, a plurality of spiral openings distributed along the circumferential direction of the adjusting sleeve are arranged on the adjusting sleeve, a plurality of guide strips are axially arranged on the connector main body, positioning rods penetrating into the spiral openings and capable of moving radially are inserted in gaps of the guide strips, a cylindrical elastic sleeve is arranged in the adjusting sleeve, the positioning rods penetrate through and are fixed on the elastic sleeve, a movable sleeve is arranged on the outer portion of the connector main body, a plurality of protruding strips are arranged on the inner wall of the movable sleeve, the protruding strips are matched with gaps of the adjacent guide strips, the positions of the positioning rods are matched with each other, an elastic piece is arranged between on