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CN-121978163-A - Silica gel material coefficient of heat conductivity test equipment

CN121978163ACN 121978163 ACN121978163 ACN 121978163ACN-121978163-A

Abstract

The application discloses a silica gel material heat conductivity coefficient testing device, which belongs to the technical field of heat conductivity coefficient testing, and comprises a control cabinet body, wherein a protective cover is arranged at the top end of the control cabinet body, a testing main body is arranged in the protective cover, a drawing unit is further arranged in the protective cover and used for assisting in placing a sample and automatically feeding the sample, and the position of the drawing unit corresponds to that of a cold electrode unit. The application has the beneficial effects that the drawing unit is arranged, 2 groups of conveying units are arranged in the drawing unit, one group of conveying units are used for placing a plurality of samples to be detected in advance, the other group of conveying units can be used for placing the detected samples, after one test is finished, the system can automatically remove the tested sample and adsorb the next new sample to send the next new sample to the test position, in the whole process, the operator does not need to frequently open and close the cover door, the manual intervention time of a single test is reduced to zero, and the test efficiency is greatly improved.

Inventors

  • LIU JIA

Assignees

  • 苏州速传导热电子材料科技有限公司

Dates

Publication Date
20260505
Application Date
20260209

Claims (10)

  1. 1. The utility model provides a silica gel material coefficient of heat conductivity test equipment, its characterized in that includes the switch board body (1) the top of switch board body (1) is provided with protection casing (2), the inside of protection casing (2) is provided with test main part, test main part includes stand (5), movable block (6), lifting unit (7), pressure sensor (8), displacement sensor (9), hot pole unit (10) and cold pole unit (11), stand (5) are provided with 2 groups in the inside symmetry of protection casing (2), and are provided with movable block (6) in the outside of 2 groups stand (5), the top of movable block (6) is provided with pressure sensor (8), and the top of pressure sensor (8) is connected with the bottom of lifting unit (7), be provided with hot pole unit (10) under the movable block (6) the back of hot pole unit (10) is provided with displacement sensor (9), the below of hot pole unit (10) is provided with cold pole unit (11), and the outside of cold pole unit (11) is outside through the pipeline (3) and is connected with the interior of pull unit (4) of pull, still be used for placing sample automatically, wherein the position of the drawing unit (4) corresponds to the position of the cold electrode unit (11).
  2. 2. The silica gel material heat conductivity coefficient testing device according to claim 1, wherein a rotatably connected cover door is arranged outside the protective cover (2), an observation window (21) is arranged outside the cover door, and a sliding drawing unit (4) is arranged in the middle of the observation window (21).
  3. 3. The silica gel material heat conductivity coefficient testing device according to claim 2, wherein the bottoms of the 2 upright posts (5) are integrally provided with fixed blocks (51), sliding drawing units (4) are arranged in the middle of the 2 fixed blocks (51), and the drawing units (4) are locked with the fixed blocks (51) through electromagnetism.
  4. 4. A silica gel material heat conductivity testing device according to claim 3, wherein the drawing unit (4) is of a U-shaped frame structure, a vacuum adsorption unit (12) is arranged in the center of the drawing unit, automatic conveying units (13) are arranged on two sides of the drawing unit, and the vacuum adsorption unit (12) adsorbs and places samples on the automatic conveying units (13) through rotation.
  5. 5. The silica gel material heat conductivity testing device according to claim 4, wherein the vacuum adsorption unit (12) comprises a mounting plate (121), a vacuum pump (122), a rotating motor (123), a connecting pipe (124) and a vacuum chuck (125), wherein the mounting plate (121) is connected with the drawing unit (4), a turntable connected with a bearing is arranged at the top end of the mounting plate (121), the bottom of the turntable is connected with the rotating motor (123), the top end of the turntable is provided with the vacuum pump (122), the top end of the vacuum pump (122) is provided with the connecting pipe (124), and the top end of the connecting pipe (124) is provided with the vacuum chuck (125).
  6. 6. A test apparatus for thermal conductivity of silica gel material according to claim 5, wherein said connecting tube (124) is provided in an L-shaped configuration, and a center line of a vacuum chuck (125) at a top end thereof coincides with a center line of the cold pole unit (11).
  7. 7. The silica gel material heat conductivity testing device according to claim 4, wherein the automatic conveying unit (13) is symmetrically provided with 2 groups on the inner side of the drawing unit (4), the automatic conveying unit comprises a fixed seat (131) and a feeding unit, the feeding unit is arranged on the inner side of the fixed seat (131) and comprises 2 rotating rollers (132) and a conveyor belt (133), the conveyor belt (133) is arranged on the outer side of the 2 rotating rollers (132), a reserved groove is arranged on the surface of the conveyor belt (133) and used for placing samples, and a tensioning mechanism is arranged below the conveyor belt (133) and used for tensioning control.
  8. 8. A silica gel material heat conductivity testing apparatus according to claim 7, wherein the outside of one of said rotating rollers (132) is controlled by a driving assembly comprising a meshing gear (135), a driving gear (136) and a driving motor (137), the top end of said driving motor (137) is connected with said driving gear (136), the outside of said driving gear (136) is provided with a meshing gear (135) meshed with said driving gear, and said meshing gear (135) is coaxially connected with said rotating roller (132).
  9. 9. The silica gel material thermal conductivity testing apparatus according to claim 8, wherein the feeding unit further comprises a limiting plate (134) which is arranged in a trapezoid structure, a sliding plate (1341) is installed on the inner side of the limiting plate (134), a telescopic component (1342) is arranged at the bottom of the sliding plate (1341), and a cooling unit is arranged at the bottom of the limiting plate (134).
  10. 10. The device for testing the thermal conductivity of the silica gel material according to claim 9, wherein the telescopic component (1342) is arranged in a rectangular groove inside the fixing base (131), and the limiting plate (134) is arranged in the middle of the fixing base (131).

Description

Silica gel material coefficient of heat conductivity test equipment Technical Field The application relates to the technical field of thermal conductivity testing, in particular to a device for testing thermal conductivity of a silica gel material. Background The silica gel material heat conductivity testing equipment is a professional instrument for measuring the heat conductivity of silica gel, the principle is that a constant temperature difference is established at two sides of a sample based on a Fourier heat conduction law, after the temperature distribution reaches a steady state, the heat conductivity of the material is calculated by measuring the heat flow density, the thickness of the sample and the temperature difference; In particular, when testing, firstly, after the silica gel sample to be tested is processed into a specified size, the sample is manually placed between a heating unit and a cooling unit, the three are mutually extruded by applying proper pressure, the heating unit is heated, the cooling unit maintains constant low temperature, after the system reaches a thermally stable state, the heat conductivity coefficient can be calculated through data acquisition, but in the prior market, in order to obtain accurate and reliable statistical data of the samples, repeated testing (such as 3 groups of 6 samples) is generally required for a plurality of groups of samples, and each time the sample is replaced, the whole cycle of opening the door, taking out the old sample, putting the new sample and closing the door is required; When the whole device carries out cover door switch many times, all need the manual work to carry out the location of sample and place, the initial position and the gesture that the manual work was placed all are difficult to guarantee that the sample is at every turn position, pressure, contact state on the cold pole unit are unanimous completely, in addition, frequent the switch work of cover door that carries out still can lead to the fact undulant to the inside temperature field of device, need equipment to carry out temperature control again, and in-process all can the direct influence the precision and the uniformity of test. Disclosure of Invention One of the purposes of the application is to provide the silica gel material heat conductivity coefficient testing equipment, which solves the problems that when the heat conductivity coefficient testing equipment in the current market is used for conducting heat conductivity coefficient testing, operators are required to consume a large amount of time to frequently conduct opening and closing work of a cover door, the process is time-consuming and labor-consuming, and the final experimental result can be influenced. In order to achieve the aim, the technical scheme includes that the silica gel material heat conductivity testing equipment comprises a control cabinet body, wherein a protective cover is arranged at the top end of the control cabinet body, a testing main body is arranged inside the protective cover, the testing main body comprises upright posts, moving blocks, lifting components, pressure sensors, displacement sensors, hot pole units and cold pole units, 2 groups of upright posts are symmetrically arranged inside the protective cover, the moving blocks are arranged outside the 2 groups of upright posts, the pressure sensors are arranged at the top ends of the moving blocks, the top ends of the pressure sensors are connected with the bottom of the lifting components, the hot pole units are arranged under the moving blocks, displacement sensors are arranged on the back surface of the hot pole units, cold pole units are arranged under the hot pole units, the outer parts of the cold pole units are connected with the constant-temperature water tank units through pipelines, and drawing units are further arranged inside the protective cover and used for assisting in placing samples and automatically feeding the samples, and the positions of the drawing units correspond to the positions of the cold pole units. Preferably, the outside of protection casing is provided with swivelling joint's cover door, is provided with the observation window in the outside of cover door, the centre of observation window is provided with the pull unit of slip. Preferably, the bottom of 2 stand is integrative installs the fixed block, 2 the centre of fixed block is provided with the sliding pull unit, and passes through electromagnetic lock between pull unit and the fixed block. Preferably, the drawing unit is arranged into a U-shaped frame structure, a vacuum adsorption unit is arranged at the center of the interior of the drawing unit, automatic conveying units are arranged on two sides of the drawing unit, and the vacuum adsorption unit adsorbs and places samples on the automatic conveying units through rotation. Preferably, the vacuum adsorption unit comprises a mounting plate, a vacuum pump, a rotating motor, a connecting pipe