CN213209979U

CN213209979U - Aluminum alloy radiating fin heat dispersion testing arrangement

Info

Publication number: CN213209979U
Application number: CN202022373123.3U
Authority: CN
Inventors: 李建红
Original assignee: Taicang Qiaozhou Hardware Technology Co ltd
Current assignee: Taicang Qiaozhou Hardware Technology Co ltd
Priority date: 2020-10-23
Filing date: 2020-10-23
Publication date: 2021-05-14
Anticipated expiration: 2030-10-23

Abstract

The utility model belongs to the technical field of the fin, concretely relates to aluminum alloy cooling fin heat dispersion testing arrangement. The door comprises a box body, a door body, a test block, a heat insulation sleeve and a pressing device; the door body can cover the box body to form a closed space; the test block is cuboid and is vertically arranged in the box body; the periphery and the bottom of the test block are covered by a heat insulation sleeve; a pressing device capable of pressing downwards is further arranged in the box body and is positioned right above the test block; in the test block, a group of first temperature sensors are arranged at the top, a group of second temperature sensors are arranged in the middle, and a heating device is arranged at the lower part; a group of third temperature sensors are also arranged in the box body. The utility model relates to a rationally, the structure is succinct, can conveniently assess the test to the heat dispersion of fin, and it is the test both to carry out the ration, can carry out qualitative test again, and the test result has better accuracy, stability, reliability.

Description

Aluminum alloy radiating fin heat dispersion testing arrangement

Technical Field

The utility model belongs to the technical field of the fin, more specifically say, relate to an aluminum alloy cooling fin heat dispersion testing arrangement.

Background

With the rapid development of the technology industry, the integration level of various electronic products is higher and higher, and the functions are more and more complex. Meanwhile, the heat dissipation problem of various heating elements is more and more prominent, and becomes one of the main limitations for further improving the performance of electronic products. Electronic components are generally fragile, and the electronic components are easily damaged due to insufficient heat dissipation. At present, the most widely applied heat dissipation method is to add heat dissipation fins. The radiating fins can enlarge the radiating area and improve the heat conduction efficiency. The aluminum alloy radiating fin has the advantages of low cost, convenient processing, excellent performance and the like, so that the aluminum alloy radiating fin becomes one of the most widely applied radiating fins. Generally, the design of the radiating fin is firstly carried out through software simulation calculation to obtain an optimal design scheme, then a test piece is made for verification test, and mass production is carried out after verification, so that products can leave a factory only after being detected to be qualified. The overall heat dissipation performance of the heat sink needs to be tested in both the verification and detection stages. However, the heat conductivity testing device sold in the market at present is mostly used for measuring the heat conductivity coefficient, and the material is required to be made into a standard component, so that the heat conductivity testing device is not suitable for the overall performance test of the radiating fin.

Disclosure of Invention

Not enough to prior art exists, the utility model provides an aluminum alloy cooling fin heat dispersion testing arrangement to overcome the above-mentioned not enough that exists among the prior art.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a heat dispersion performance testing device for an aluminum alloy radiating fin comprises a box body, a door body, a test block, a heat insulation sleeve and a pressing device; the door body can cover the box body to form a closed space; the test block is cuboid and is vertically arranged in the box body; the periphery and the bottom of the test block are covered by a heat insulation sleeve; a pressing device capable of pressing downwards is further arranged in the box body and is positioned right above the test block; in the test block, a group of first temperature sensors are arranged at the top, a group of second temperature sensors are arranged in the middle, a heating device is arranged at the lower part, the first temperature sensors are positioned in the same horizontal plane, the second temperature sensors are positioned in the same horizontal plane, and the heating device is positioned in the same horizontal plane; a group of third temperature sensors are also arranged in the box body. Among them, the test block is preferably made of a metal material having high thermal conductivity, such as copper and copper alloy. First temperature sensor, second temperature sensor and heating device can integrated into one piece in the test block, also can dismantle and be fixed in the test block, preferably adopts integrated into one piece's mode.

The utility model discloses during the use, the test block upper surface is arranged in to the aluminum alloy fin level that will await measuring, and heat conduction silicone grease coats between the two to use closing device to compress tightly. And then starting the heating device, gradually conducting heat to the aluminum alloy radiating fin to be measured from bottom to top in the test block, stopping heating after stably heating for a period of time, and naturally cooling. Recording the change curves of the temperatures of the first temperature sensor, the second temperature sensor and the third temperature sensor along with time to obtain three groups of curves which are respectively marked as T1, T2 and T3, selecting a section of data with stable T1, T2 and T3 in the same time period, and calculating the total heat conductivity coefficient of the radiating fin based on the Fourier law so as to evaluate whether the total heat conductivity coefficient meets the design requirement. In order to reduce errors, the calculation results can also be calibrated by testing a series of standard parts to make a standard curve. In addition, in order to simplify the test, the T1, T2 and T3 curves of the test specimen can be compared with the T1, T2 and T3 curves of the standard specimen, so that whether the test specimen is qualified or not can be qualitatively judged.

Further, in the device for testing the heat dissipation performance of the aluminum alloy radiating fin, the compressing device comprises a shell, a telescopic rod, an elastic rubber head and a motor; the casing is arranged at the top of the box body, the telescopic rod is vertically arranged in the casing in a sliding manner, and the lower end of the telescopic rod extends out of the casing and is provided with an elastic rubber head; the telescopic rod is also provided with a rack; the motor is arranged in the shell and is provided with a gear, and the motor drives the telescopic rod to move upwards and downwards through the meshing of the gear and the rack.

Further, in the above aluminum alloy heat dissipation performance testing apparatus, the motor is preferably a reduction motor integrated with a speed reducer.

Further, in the device for testing the heat dissipation performance of the aluminum alloy radiating fin, a torque limiter is further arranged between the motor and the gear. The torque limiter can keep the pressing device stable in pressing each time and protect the structure of the pressing device.

Further, in the heat dissipation performance testing device for the aluminum alloy cooling fin, the heating device preferably uses a serpentine heating pipe.

Further, in the above aluminum alloy heat sink heat dissipation performance test apparatus, the cross section of the test block is preferably square.

Preferably, the door body is hinged to the box body and locked by the buckle, and a sealing rubber strip is further arranged between the door body and the box body. Preferably, the door body and the box body are both made of heat insulating materials. In addition, a drying agent bag is also arranged in the box body. The box body is kept relatively stable through the design, and the influence of environmental change and air flow on detection is reduced.

Has the advantages that: compared with the prior art, the utility model provides an aluminum alloy cooling fin heat dispersion testing arrangement, reasonable in design, the structure is succinct, can conveniently assess the test to the heat dispersion of fin, and it is the test both to carry out the ration, can carry out qualitative test again, and the test result has better accuracy, stability, reliability.

Drawings

Fig. 1 is a perspective view of the present invention;

FIG. 2 is a schematic view of the internal structure of the present invention;

FIG. 3 is a schematic cross-sectional view taken along the line A-A in FIG. 2;

FIG. 4 is a schematic cross-sectional view taken along line B-B of FIG. 2;

fig. 5 is a schematic view of the internal structure of the pressing device of the present invention;

fig. 6 is a partial schematic view of a pressing device in embodiment 2.

In the figure, a box body 1, a door body 2, a test block 3, a heat insulation sleeve 4, a pressing device 5, a third temperature sensor 6, a first temperature sensor 31, a second temperature sensor 32, a heating device 33, a shell 51, an expansion link 52, an elastic rubber head 53, a motor 54 and a torque limiter 55.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, 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", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

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 invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; 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 invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. 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 under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Example 1

A heat dispersion testing device of an aluminum alloy radiating fin is shown in figures 1 to 5 and comprises a box body 1, a door body 2, a test block 3, a heat insulation sleeve 4 and a pressing device 5; the door body 2 can cover the box body 1 to form a closed space; the test block 3 is cuboid and is vertically arranged in the box body 1; the periphery and the bottom of the test block 3 are covered by a heat insulation sleeve 4; a pressing device 5 capable of pressing downwards is further arranged in the box body 1, and the pressing device 5 is positioned right above the test block 3; in the test block 3, a group of first temperature sensors 31 is arranged at the top, a group of second temperature sensors 32 is arranged in the middle, a heating device 33 is arranged at the lower part, the first temperature sensors 31 are positioned in the same horizontal plane, the second temperature sensors 32 are positioned in the same horizontal plane, and the heating device 33 is positioned in the same horizontal plane; a group of third temperature sensors 6 are also arranged in the box body 1.

In this embodiment, the pressing device 5 includes a housing 51, an expansion link 52, an elastic rubber head 53, and a motor 54; the shell 51 is arranged at the top of the box body 1, the telescopic rod 52 is vertically arranged in the shell 51 in a sliding manner, and the lower end of the telescopic rod 52 extends out of the shell 51 and is provided with an elastic rubber head 53; the telescopic rod 52 is also provided with a rack; the motor 54 is arranged in the shell 51, a gear is arranged on the motor 54, and the motor 54 drives the telescopic rod 52 to move upwards and downwards through the meshing of the gear and the rack.

Example 2

In the present embodiment, the motor 54 is a reduction motor; a torque limiter 55 is also provided between the motor 54 and the gear as shown in fig. 6.

In this embodiment, the heating device 33 is a serpentine heating tube; the cross section of the test block 3 is square.

In this embodiment, the door body 2 is hinged to the box body 1 and locked by a buckle, and a sealing rubber strip is further arranged between the door body 2 and the box body 1. The door body 2 and the box body 1 are both made of heat insulating materials. A desiccant bag (not shown) is also placed in the cabinet 1.

The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements can be made without departing from the principle of the present invention, and these improvements should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides an aluminum alloy cooling fin heat dispersion testing arrangement which characterized in that: comprises a box body (1), a door body (2), a test block (3), a heat insulation sleeve (4) and a pressing device (5); the door body (2) can cover the box body (1) to form a closed space; the test block (3) is cuboid and is vertically arranged in the box body (1); the periphery and the bottom of the test block (3) are covered by the heat insulation sleeve (4); a pressing device (5) capable of pressing downwards is further arranged in the box body (1), and the pressing device (5) is located right above the test block (3); in the test block (3), a group of first temperature sensors (31) is arranged at the top, a group of second temperature sensors (32) is arranged in the middle, a heating device (33) is arranged at the lower part, the first temperature sensors (31) are positioned in the same horizontal plane, the second temperature sensors (32) are positioned in the same horizontal plane, and the heating device (33) is positioned in the same horizontal plane; a group of third temperature sensors (6) is further arranged in the box body (1).

2. The aluminum alloy heat radiation performance test apparatus of claim 1, wherein: the pressing device (5) comprises a shell (51), an expansion rod (52), an elastic rubber head (53) and a motor (54); the shell (51) is arranged at the top of the box body (1), the telescopic rod (52) is vertically arranged in the shell (51) in a sliding manner, and the lower end of the telescopic rod (52) extends out of the shell (51) and is provided with the elastic rubber head (53); the telescopic rod (52) is also provided with a rack; the motor (54) is arranged in the shell (51), a gear is arranged on the motor (54), and the motor (54) drives the telescopic rod (52) to move upwards and downwards through the meshing of the gear and the rack.

3. The aluminum alloy heat radiation performance test apparatus of claim 2, wherein: the motor (54) is a speed reduction motor.

4. The aluminum alloy heat radiation performance test apparatus of claim 3, wherein: a torque limiter (55) is further arranged between the motor (54) and the gear.

5. The aluminum alloy heat radiation performance test apparatus of claim 1, wherein: the heating device (33) is a serpentine heating pipe.

6. The aluminum alloy heat sink heat dissipation performance test apparatus as recited in any one of claims 1 to 5, wherein: the cross section of the test block (3) is square.

7. The aluminum alloy heat radiation performance testing apparatus of claim 6, wherein: the door body (2) is hinged with the box body (1) and locked by a buckle, and a sealing rubber strip is further arranged between the door body (2) and the box body (1).

8. The aluminum alloy heat radiation performance testing apparatus of claim 6, wherein: the door body (2) and the box body (1) are both made of heat insulation materials.

9. The aluminum alloy heat radiation performance testing apparatus of claim 6, wherein: a drying agent bag is also arranged in the box body (1).