Rapid positioning thermal conductivity detection device

Abstract

The utility model discloses a rapid positioning thermal conductivity detection device, which comprises a machine base (1), a cooling table (2) arranged at the bottom of the machine base (1), a movable hot pressing head (3) driven by a motor arranged at the upper part of the machine base (1), a base block (4) fixedly connected on the cooling table (2), first right-angle blocks (5) movably connected at two ends of the base block (4), and second right-angle blocks (6) movably connected with the first right-angle blocks (5). A movably connected second right-angle block (6) is arranged at the end part of the first right-angle block (5); the base block (4), the first right-angle block (5) and the second right-angle block (6) jointly define a rectangular sample placing cavity (7); according to the utility model, heat flow blocking can be carried out on the side parts of samples with multiple sizes, and the detection accuracy is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to experimental equipment field, especially quick positioning's heat conductivity detection device. BACKGROUND

[0002] Heat conductivity heat conductivity is also called heat conductivity coefficient and thermal conductivity, and it is a physical quantity for indicating the heat conduction capacity of material, and it is usually detected by heat conductivity detection equipment in the laboratory, for example, the heat conductivity coefficient measuring instrument based on touch screen disclosed by the Chinese utility model patent with the announcement number CN210894180U specifically comprises support ring, heating disc and heat dissipation plate and the like components, and the sample to be measured is placed on the heat dissipation plate, and the movable support ring drives the heating disc to adhere to the sample to be measured, and the heat emitted by the heating disc passes through the top surface and bottom surface of the sample to be measured to the heat dissipation plate, and the heat conductivity can be calculated by recording the temperature of the heating disc and the heat dissipation plate, the thickness of the sample and the area of the sample, however, when the size of the sample cannot be accurately corresponding to the heating disc, part of the heat of the heating disc will enter from the side of the sample, which affects the heat flow transmission, and further leads to the error of the calculation result, and the measurement accuracy is poor. CONTENT OF THE UTILITY MODEL

[0003] The utility model discloses a kind of quick positioning's heat conductivity detection device.

[0004] The utility model discloses a kind of quick positioning's heat conductivity detection device, including base, the bottom of base is equipped with cooling platform, the upper portion of base is equipped with the moving hot head driven by motor, cooling platform corresponds with moving hot head, the fixed connection of base is equipped with base block, base block both ends are equipped with the first right angle block of swing connection, the end of first right angle block is equipped with the second right angle block of swing connection;The base block, first right angle block and second right angle block are collectively enclosed to form rectangular sample placement cavity;First right angle block and second right angle block are all equipped with the telescopic column of longitudinal elastic swing connection, the side of telescopic column is equipped with the third right angle block in sample placement cavity, the cavity surface of sample placement cavity is correspondingly attached to the outside side of third right angle block, and each third right angle block is enclosed to form rectangle;The end of two adjacent third right angle blocks is swing connected;First right angle block, second right angle block and third right angle block are all heat insulation materials.

[0005] In the above-mentioned quick positioning's heat conductivity detection device, the end of the one side right angle plate of first right angle block and the end of the one side right angle side of second right angle block are all equipped with first plug, the both ends of base block, the end of the other side right angle plate of first right angle block and the end of the other side right angle side of second right angle block are all equipped with first slot, and the first plug and the first slot of adjacent position are inserted to form swing connection.

[0006] The two side right-angle edge ends of the third right-angle block are respectively provided with a second insertion block and a second insertion slot, and the second insertion block and the second insertion slot which are adjacent in position are inserted to form a movable connection.

[0007] The telescopic column is arranged at the right-angle bending position of the first right-angle block and the second right-angle block.

[0008] The telescopic column is arranged at the right-angle bending position of the first right-angle block and the second right-angle block.

[0009] The telescopic column is arranged at the right-angle bending position of the first right-angle block and the second right-angle block.

[0010] The telescopic column is arranged at the right-angle bending position of the first right-angle block and the second right-angle block.

[0011] Compared with the prior art, the first right-angle block and the second right-angle block are moved to adjust the size of the sample placing cavity before detection, so that the sample can be placed, and the first right-angle block and the second right-angle block are adjusted again to adjust the position of the third right-angle block after the sample is placed, so that the third right-angle block is closely attached to the side edge of the sample; when measurement starts, the third right-angle block is pressed and can be synchronously lowered through the telescopic column as the hot press head is lowered, so that the hot press head is closely attached to the top surface of the sample, the heat of the hot press head is difficult to directly act on the sample in the measurement process due to the heat insulation effect of the first right-angle block, the second right-angle block and the third right-angle block, and then the heat flow is transmitted in the direction from the top surface to the bottom surface, interference is reduced, and the accuracy of the thermal conductivity measurement is improved. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model;

[0013] Figure 2 It is a local structural schematic diagram of the utility model;

[0014] Figure 3 It is a local structural schematic diagram of the telescopic column of the utility model.

[0015] The marks in the drawings are: 1, base; 2, cooling table; 3, movable hot press head; 4, base block; 5, first right-angle block; 6, second right-angle block; 7, sample placing cavity; 8, telescopic column; 9, third right-angle block; 10, first insertion block; 11, first insertion slot; 12, second insertion block; 13, second insertion slot; 14, extension rod; 15, embedding groove. DETAILED DESCRIPTION

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0017] Example: A quick-positioning thermal conductivity detection device, as shown in the attached document. Figure 1 As shown, the device includes a base 1, with a cooling platform 2 mounted at the bottom of the base 1. The cooling platform is used for heat dissipation and is equipped with thermocouples for temperature measurement. A movable hot press head 3, driven longitudinally by a motor, is mounted on the upper part of the base 1. The hot press head 3 has internal heating components and is also equipped with thermocouples for temperature measurement. The cooling platform 2 corresponds to the movable hot press head 3. This is a technical method well-known and mastered by those skilled in the art, and will not be described in detail here. See attached figure. Figure 2 As shown, a base block 4 is fixedly connected to the cooling platform 2 as a fixed base point. A first right-angle block 5 is movably connected to both ends of the base block 4, and a second right-angle block 6 is movably connected to the end of the first right-angle block 5. The base block 4, the first right-angle block 5, and the second right-angle block 6 together form a rectangular sample placement cavity 7 to fit the shape of most samples; as shown in the attached diagram. Figure 3 As shown, the first right-angle block 5 and the second right-angle block 6 are longitudinally elastically connected by a telescopic column 8 via a spring. A third right-angle block 9 is integrally formed on the side of the telescopic column 8 and located within the sample placement cavity 7. The outer side of the third right-angle block 9 corresponds to and fits against the cavity surface of the sample placement cavity 7. The inner sides of each third right-angle block 9 form a rectangle to enclose the sample. The ends of adjacent third right-angle blocks 9 are movably connected. A first insert 10 is provided at one right-angle plate end of the first right-angle block 5 and one right-angle edge end of the second right-angle block 6. First slots 11 are provided at both ends of the base block 4, at the other right-angle plate end of the first right-angle block 5, and at the other right-angle edge end of the second right-angle block 6. Adjacent first inserts 10 are inserted into first slots 11 to form a movable connection. The relative movement of the first inserts and first slots adjusts the positions of the first and second right-angle blocks. The length determines the movable distance; the two right-angled sides of the third right-angled block 9 are respectively provided with a second insert 12 and a second slot 13. The adjacent second insert 12 and second slot 13 are inserted to form a movable connection. The relative movement of the second insert and the second slot realizes the position adjustment of the third right-angled block. The length of the second insert is the same as the length of the first insert. The length of the second insert and the second slot determines the movable distance of the third right-angled block; the telescopic column 8 is set at the right-angle bend of the first right-angled block 5 and the second right-angled block 6; the side of the telescopic column 8 is integrally formed with an extension rod 14, and the third right-angled block 9 is integrally formed at the end of the extension rod 14, increasing the setting distance between the telescopic column and the third right-angled block, ensuring that the assembly of the telescopic column has sufficient space; the top surfaces of the second right-angled block 6 and the first right-angled block 5 have grooves 15 that fit with the extension rod 14, ensuring the longitudinal movement range of the third right-angled block.

[0018] Working principle: the first and second right-angle blocks 5 and 6 are moved to adjust the size of the sample placement cavity before detection, to ensure that the sample can be placed, and the first and second right-angle blocks 5 and 6 are adjusted again to adjust the position of the third right-angle block 9 after the sample is placed, to ensure that it closely fits the side of the sample; the measurement starts, and the third right-angle block 9 is pressed to be synchronously lowered through the telescopic column 8 as the hot moving head 3 is lowered, to ensure that the hot moving head 3 closely fits the top surface of the sample, and the heat of the hot moving head 3 is difficult to directly act on the sample during the measurement process due to the heat insulation effect of the first, second and third right-angle blocks 5, 6 and 9, to further ensure that the heat flow is transmitted in the direction from the top surface to the bottom surface, to reduce the interference to improve the accuracy of the thermal conductivity measurement.

[0019] The above embodiments only express the implementation of the present application, and the description is more specific and detailed, but it cannot be understood as the limitation of the scope of the application patent, and in the present embodiment, up, down, left, right, front and back only represent their relative positions and not their absolute positions. It should be noted that for those skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the protection scope of the present application patent should be subject to the appended claims.

Claims

1. A rapid positioning thermal conductivity detection device, comprising a base (1), a cooling table (2) is arranged at the bottom of the base (1), a movable hot press head (3) driven by a motor is arranged at the upper part of the base (1), and the cooling table (2) corresponds to the movable hot press head (3), characterized in that: The cooling table (2) is provided with a fixedly connected base block (4), the two ends of the base block (4) are provided with movably connected first right-angle blocks (5), and the end portions of the first right-angle blocks (5) are provided with movably connected second right-angle blocks (6); the base block (4), the first right-angle blocks (5) and the second right-angle blocks (6) jointly enclose a rectangular sample placing cavity (7); the first right-angle blocks (5) and the second right-angle blocks (6) are both provided with longitudinally elastically movably connected telescopic columns (8), the side portions of the telescopic columns (8) are provided with third right-angle blocks (9) located in the sample placing cavity (7), the outer side edges of the third right-angle blocks (9) are correspondingly attached to the cavity surfaces of the sample placing cavity (7), and the third right-angle blocks (9) jointly enclose a rectangle; the end portions of two adjacent third right-angle blocks (9) are movably connected; the first right-angle blocks (5), the second right-angle blocks (6) and the third right-angle blocks (9) are all made of heat insulation materials.

2. The rapid positioning thermal conductivity detection device according to claim 1, wherein: The end portions of the side right-angle plates of the first right-angle blocks (5) and the end portions of the side right-angle edges of the second right-angle blocks (6) are both provided with first insertion blocks (10), the two ends of the base block (4), the end portions of the other side right-angle plates of the first right-angle blocks (5) and the end portions of the other side right-angle edges of the second right-angle blocks (6) are all provided with first insertion grooves (11), and positionally adjacent first insertion blocks (10) and first insertion grooves (11) are inserted and connected to form movable connections.

3. The quick positioning thermal conductivity detection device according to claim 1, wherein: The end portions of the two side right-angle edges of the third right-angle blocks (9) are respectively provided with second insertion blocks (12) and second insertion grooves (13), and positionally adjacent second insertion blocks (12) and second insertion grooves (13) are inserted and connected to form movable connections.

4. The quick positioning thermal conductivity detection device according to claim 1, wherein: The telescopic columns (8) are arranged at the right-angle bending portions of the first right-angle blocks (5) and the second right-angle blocks (6).

5. The quick positioning thermal conductivity detection device according to claim 1, wherein: The side portions of the telescopic columns (8) are provided with extension rods (14), and the third right-angle blocks (9) are arranged at the end portions of the extension rods (14).

6. The quick positioning thermal conductivity detection device according to claim 1, wherein: The top surfaces of the second right-angle blocks (6) and the first right-angle blocks (5) are provided with embedding grooves (15) matched with the extension rods (14).

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