CN211955287U

CN211955287U - Testing arrangement of general simulation thermal evaporation

Info

Publication number: CN211955287U
Application number: CN202020190229.7U
Authority: CN
Inventors: 刘隆穗; 黄明明; 田博文
Original assignee: Dongguan Longhui Electronic Technology Co ltd
Current assignee: Dongguan Longhui Electronic Technology Co ltd
Priority date: 2020-02-20
Filing date: 2020-02-20
Publication date: 2020-11-17
Anticipated expiration: 2030-02-20

Abstract

The utility model discloses a testing arrangement of general simulation thermal evaporation, including test platform, last work piece fixed part, heat source fixed part, amount of wind flow guide box, cylinder, the decompression piece of being equipped with of test platform, the amount of wind flow guide box is equipped with the test fan. The utility model discloses a set up test fan and air volume flow guide box, can guide the air current, promote forced draft radiating efficiency, ensure that the wind speed is unanimous in the testing process, through setting up the ring temperature inductor, can monitor ambient temperature and in time make the regulation, ensure that the temperature is unanimous in the testing process, through setting up the cylinder, subtract briquetting and limiting plate, ensure that the atmospheric pressure is unanimous in the testing process, at the amount of wind, the temperature, under the equal unanimous test condition of atmospheric pressure, carry out the heat dissipation test to different radiators, monitor CPU's the condition, can accomplish the heat dissipation evaporation performance to different radiators and carry out the comprehensive evaluation, test method is simple and practical, the test result is accurate relatively, test equipment can be used to the heat dissipation test to different kinds of radiators, and.

Description

Testing arrangement of general simulation thermal evaporation

Technical Field

The utility model belongs to the technical field of the heat dissipation test technique and specifically relates to a testing arrangement of general simulation thermal evaporation.

Background

Aiming at the test of heat dissipation products, the main difference of the technical scheme is how to effectively perform heat dissipation or heat evaporation and how to reduce unstable factors, so that the electronic product is cooled to a controllable temperature, and the test of the product is smoothly completed. According to the manual testing device corresponding to each production line testing room in the factory in the industry at present, because of uncontrollable factors such as the rotating speed of a fan, air volume and air pressure, the air volume of the fan has a small difference when the fan works, and because the gap between the testing fan and a radiator product is small, the impedance at the air outlet of the product is large, the air volume and the air pressure of the fan are increased, so that the data testing has a difference change; in addition, the testing device and the testing function are single, only specific products can be tested, the universality is not realized, each type of product needs to be independently designed with a unique testing device, and the design, production and management and control costs are high.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the problem mentioned in the above-mentioned background art, provide a testing arrangement of general simulation thermal evaporation, use parts such as standardized amount of wind water conservancy diversion case, air pressure control device, heat source fixed part, carry out standardized design to the heat dissipation testing arrangement of radiator to reduce amount of wind atmospheric pressure error, avoid because of the unstable test error that causes of operating temperature, test result is accurate and the testing arrangement commonality is strong.

In order to solve the technical problem, the utility model discloses the technical scheme who takes as follows:

a universal testing device for simulating thermal evaporation comprises a testing platform, wherein a workpiece fixing part capable of fixing a radiator to be tested is arranged on the testing platform, and a heat source fixing part capable of fixing a CPU (central processing unit) is arranged below the workpiece fixing part on the testing platform; an air flow guide box with openings at two ends is arranged on the test platform beside the workpiece fixing part, one opening end of the air flow guide box faces the workpiece fixing part, and the other end of the air flow guide box extends out of the test platform; the inner wall of the air flow guide box is provided with a test fan, and the test fan can drive airflow to flow in the air flow guide box and perform forced ventilation and heat dissipation on a radiator fixed in the workpiece fixing part; the test platform is provided with a support plate fixedly connected with the test platform through a guide pillar above the workpiece fixing part, the support plate is provided with an air cylinder and a regulating valve capable of controlling the air cylinder, a pressure reducing block is arranged below the support plate, and the air cylinder is in transmission connection with a pressure reducing rod arranged in the pressure reducing block; the limiting plate is movably connected to the lower portion of the supporting plate and used for protecting the radiator, and the limiting plate is arranged between the workpiece fixing portion and the pressure reducing block and can move up and down relative to the test platform.

Preferably, two wind baffles are further arranged between the air flow guide box and the workpiece fixing part on the test platform.

Preferably, the workpiece fixing part on the test platform is provided with a first groove for fixing the radiator, the heat source fixing part on the test platform is provided with a second groove for fixing the CPU isolation board, and a third groove communicated with each other and used for fixing the CPU is arranged between the first groove and the second groove.

Preferably, the bottom of the two wind shields on the test platform is provided with a fourth groove for fixing the wind shields.

Preferably, a fifth groove for fixing the air flow guide box is formed in the bottom of the air flow guide box on the test platform.

Preferably, the bottom of the air flow guide box is provided with a cushion block outside the test platform, and the cushion block can heighten one end of the air flow guide box to keep the air flow guide box horizontal.

Preferably, an annular temperature sensor capable of monitoring the ambient temperature is further arranged on the inner wall of the component flow guide box in the air inlet area of the test fan.

Preferably, the test platform is further provided with a switch capable of opening and closing the test fan and the power supply of the regulating valve.

Compared with the prior art, the beneficial effects of the utility model reside in that: by arranging the test fan and the air flow guide box, air flow can be guided, the forced ventilation and heat dissipation efficiency is improved, the air flow rate and the air pressure of the air filled on the radiator to be tested can be ensured to be consistent, the influence of objective factors is avoided, and the air flow consistency in the test process is ensured; by arranging the environment temperature sensor, the environment temperature can be rapidly monitored and timely adjusted, the influence of different temperatures on test data is avoided, and the consistency of the temperature in the test process is ensured; by arranging the air cylinder, the pressure reducing block and the limiting plate, the practical and practical environment can be simulated, the air pressure around the radiator to be tested is controlled within a set range, and the consistency of the air pressure in the testing process is ensured; the device can carry out the heat dissipation test to different radiators under the test condition that the amount of wind, temperature, atmospheric pressure are all unanimous, through monitoring CPU, can accomplish the heat dissipation evaporation performance of different radiators and make comprehensive evaluation, and test method is simple and practical, and the test result is accurate relatively, surveys and establishes the equipment and can use in the heat dissipation test of different kinds of radiators, and the commonality is strong.

Drawings

FIG. 1 is a schematic perspective view of the present embodiment;

FIG. 2 is a top view of the test platform of the present embodiment;

FIG. 3 is a front view of the test platform of the present embodiment;

fig. 4 is a cross-sectional view a-a of fig. 2.

In the figure: 1. a test platform; 101. a fourth groove; 102. a fifth groove; 2. a workpiece fixing portion; 201. a first groove; 3. A heat source fixing part; 301. a second groove; 302. a third groove; 4. an air quantity flow guide box; 5. testing the fan; 6. a guide post; 7. A support plate; 8. a cylinder; 9. adjusting a valve; 10. a pressure reducing block; 11. a decompression bar; 12. a limiting plate; 13. a wind deflector; 14. cushion blocks; 15. an ambient temperature sensor; 16. a switch; 17. and (5) a workpiece to be detected.

Detailed Description

The present invention will be described in further detail with reference to the accompanying fig. 1-4.

The embodiments described by referring to the drawings are exemplary and intended to be used for explaining the present application and are not to be construed as limiting the present application. In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and thus should not be considered limiting. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise. In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral connections; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate. In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

As shown in fig. 1-4, a universal testing device for simulating thermal evaporation comprises a testing platform 1, a workpiece fixing part 2 capable of fixing a radiator to be tested is arranged on the testing platform 1, and a heat source fixing part 3 capable of fixing a CPU is arranged below the workpiece fixing part 2 on the testing platform 1; an air flow guide box 4 with two open ends is arranged on the test platform 1 at the side of the workpiece fixing part 2, one open end of the air flow guide box 4 is right opposite to the workpiece fixing part 2, and the other end of the air flow guide box extends out of the test platform 1; the inner wall of the air flow guide box 4 is provided with a test fan 5, and the test fan 5 can drive airflow to flow in the air flow guide box 4 and perform forced ventilation and heat dissipation on a radiator fixed in the workpiece fixing part 2; the testing platform 1 is provided with a supporting plate 7 fixedly connected with the testing platform 1 through a guide post 6 above the workpiece fixing part 2, the supporting plate 7 is provided with a cylinder 8 and an adjusting valve 9 capable of controlling the cylinder 8, a pressure reducing block 10 is arranged below the supporting plate 7, and the cylinder 8 is in transmission connection with a pressure reducing rod 11 arranged in the pressure reducing block 10; a limiting plate 12 for protecting the radiator is movably connected below the supporting plate 7, and the limiting plate 12 is arranged between the workpiece fixing part 2 and the pressure reducing block 10 and can move up and down relative to the test platform 1. The limiting plate 12 is arranged above the radiator to prevent the pressure reducing block from damaging the radiator.

Preferably, two wind shields 13 are further mounted on the test platform 1 between the wind guide box 4 and the workpiece fixing part 2. In this embodiment, one end of each of the two wind-blocking plates 13 can be connected to the airflow guiding box 4, and the other end is close to the heat sink fixed on the workpiece fixing portion, so as to guide the airflow onto the heat sink as much as possible, reduce the loss of the airflow, and improve the efficiency of forced ventilation.

Preferably, the test platform 1 is provided with a first groove 201 for fixing the heat sink at the workpiece fixing part 2, the test platform 1 is provided with a second groove 301 for fixing the CPU isolating plate at the heat source fixing part 3, and a third groove 302 for fixing the CPU is provided between the first groove 201 and the second groove 301 to communicate with each other. In this embodiment, the heat sink is placed in the first groove 201 and fixed on the testing platform 1 by a positioning screw; the CPU is placed on the isolation board, and the isolation board is installed in the second groove 301 from the bottom end of the test platform 1 and fixed, so that the CPU extends into the third groove 302 and clings to the bottom end of the heat sink.

Preferably, the testing platform 1 is provided with a fourth groove 101 for fixing the wind deflector 13 at the bottom of the two wind deflectors 13. In this embodiment, the fourth groove 101 penetrates through the testing platform 1, and a positioning hole is formed in the bottom end of the wind shield, and a fixing screw penetrates through the bottom end of the testing platform 1, penetrates through the fourth groove 101 and the positioning hole in the bottom end of the wind shield, and fixes the wind shield 13 on the testing platform 1; the wind deflector 13 is rotated left and right on the test platform 1 to guide the air flow in the air guide box 4 to the radiator as much as possible.

Preferably, a fifth groove 102 for fixing the air guiding box 4 is formed in the bottom of the air guiding box 4 on the testing platform 1.

Preferably, the bottom of the air flow guide box 4 is also provided with a cushion block 14 outside the test platform 1, and the cushion block 14 can heighten one end of the air flow guide box 4 to keep the air flow guide box 4 horizontal.

In this embodiment, in order to facilitate the standardized installation of the air guiding box 4, the fifth groove 102 for facilitating the indication and positioning of the air guiding box 4 is disposed on the testing platform 1, and the bottom of the other end of the air guiding box 4 is provided with the cushion block 14 in a matching manner, so that the air guiding box 4 is kept in a horizontal state, and the air is conveniently and quickly guided to the radiator; meanwhile, in the present embodiment, the direction of the fins in the radiator is the same as the placement direction of the airflow guiding box 4, so as to reduce the resistance and accelerate the heat dissipation.

Preferably, an annular temperature sensor 15 capable of monitoring the ambient temperature is further arranged on the inner wall of the air volume diversion box 4 in the air inlet area of the test fan 5. In this embodiment, the tester can regulate the ambient temperature until the ambient temperature sensor 15 senses the set detection temperature, and then the test can be started. In this embodiment, the environment temperature sensor 15 is provided at a position spaced apart from the test fan 5 by about 15mm in the intake area.

Preferably, the test platform 1 is further provided with a switch 16 which can turn on and off the power supply of the test fan 5 and the regulating valve 9.

The utility model designs a detection device for testing and verifying heat evaporation and heat dissipation based on the wind tunnel mode, which can ensure the consistency of the air flow rate and the air pressure of the radiator to be tested by setting a fixed rotating speed for a testing fan 5 and guiding the air flow by using an air flow guide box 4 and a wind shield 13; by arranging the environment temperature sensor 15, the temperature of the air inlet can be monitored and appropriately adjusted in time, the tested environment temperature is kept consistent, and the influence of different temperatures on test data can be avoided; the limiting plate 12 is pushed to move up and down by the aid of the air cylinder 8 and the pressure reducing plate 10, relative positions of the limiting plate 12 and the two wind shielding plates 13 are changed, and the testing fan 5 is matched with the testing fan, so that actual use environments can be simulated, and air pressure of the periphery of the radiator to be tested with different sizes and shapes is controlled within a set range. The device can carry out the heat dissipation test to different radiators under the condition that temperature, amount of wind, atmospheric pressure are unanimous, through monitoring CPU, can accomplish the heat dissipation evaporation performance of different radiators and make comprehensive evaluation, and test method is simple and practical, and the test result is accurate relatively, surveys and establishes the equipment and can use in the heat dissipation test of different kinds of radiators, and the commonality is strong.

The above is not intended to limit the technical scope of the present invention, and all changes and modifications equivalent to any modification made to the above embodiments according to the technical spirit of the present invention all still belong to the scope of the technical solution of the present invention.

Claims

1. A universal testing device for simulating thermal evaporation is characterized by comprising a testing platform, wherein a workpiece fixing part capable of fixing a radiator to be tested is arranged on the testing platform, and a heat source fixing part capable of fixing a CPU (central processing unit) is arranged below the workpiece fixing part on the testing platform; an air flow guide box with openings at two ends is arranged on the test platform beside the workpiece fixing part, one opening end of the air flow guide box faces the workpiece fixing part, and the other end of the air flow guide box extends out of the test platform; the inner wall of the air flow guide box is provided with a test fan, and the test fan can drive airflow to flow in the air flow guide box and perform forced ventilation and heat dissipation on a radiator fixed in the workpiece fixing part; the test platform is provided with a support plate fixedly connected with the test platform through a guide pillar above the workpiece fixing part, the support plate is provided with an air cylinder and a regulating valve capable of controlling the air cylinder, a pressure reducing block is arranged below the support plate, and the air cylinder is in transmission connection with a pressure reducing rod arranged in the pressure reducing block; and a limiting plate is movably connected below the supporting plate, is arranged between the workpiece fixing part and the pressure reducing block and can move up and down relative to the test platform.

2. The universal simulated thermal evaporation test device as claimed in claim 1, wherein two wind shields are further mounted on the test platform between the airflow guiding box and the workpiece fixing portion.

3. The universal simulated thermal evaporation test device as claimed in claim 2, wherein the test platform is provided with a first groove for fixing a heat sink at the workpiece fixing portion, a second groove for fixing a CPU isolation board at the heat source fixing portion, and a third groove for fixing a CPU, which is communicated with each other, between the first groove and the second groove.

4. The universal test device for simulating thermal evaporation according to claim 3, wherein the test platform is provided with fourth grooves for fixing wind deflectors at the bottoms of the two wind deflectors.

5. The universal testing device for simulating thermal evaporation according to claim 4, wherein a fifth groove for fixing the air volume flow guide box is formed in the bottom of the air volume flow guide box on the testing platform.

6. The universal testing device for simulating thermal evaporation according to claim 5, wherein a cushion block is further arranged at the bottom of the air guiding box outside the testing platform, and the cushion block can be used for raising one end of the air guiding box to keep the air guiding box horizontal.

7. The universal testing device for simulating thermal evaporation according to claim 6, wherein an annular temperature sensor capable of monitoring the ambient temperature is further arranged on the inner wall of the air volume diversion box in the air inlet area of the testing fan.

8. The universal simulated thermal evaporation test device as claimed in claim 7, wherein a switch is further provided on the test platform for turning on and off the test fan and the power supply of the regulating valve.