Automatic water injection device for thermal resistance test

Abstract

The utility model relates to an automatic water injection device for thermal resistance testing, which belongs to the technical field of thermal resistance testing and comprises a water injection tank, a water inlet is fixed at the top of the water injection tank, the outer surface of the water inlet is in threaded connection with a sealing cover, and a prompt component penetrating to the outside of the water injection tank is arranged inside the water injection tank. A water injection pump is fixed to the right side of the water injection tank, a connecting pipe is fixed to the right side of the water injection pump, a testing jig is fixed to the right side of the connecting pipe, and a testing plate is fixed to the back face of the testing jig. According to the automatic water injection device for the thermal resistance test, water in the water injection tank can be dragged into the test jig through the connecting pipe by starting the water injection pump, so that manual water dispensing is not needed, the water injection rate each time can be controlled by controlling the water outlet speed of the water injection pump in unit time, and the water injection efficiency is improved through an arranged prompt assembly. And a worker can be prompted, so that water can be supplemented in time when the water quantity is insufficient.

Description

Technical Field

[0001] The utility model relates to the technical field of thermal resistance testing, in particular to an automatic water injection device for thermal resistance testing. Background Art

[0002] As more and more thermal conductive materials are available on the market, the performance of thermal conductive materials varies greatly. When selecting thermal conductive materials, it is necessary to conduct a quick test to eliminate unsuitable products, narrow the selection range, and improve selection efficiency.

[0003] When conducting thermal resistance tests, a testing machine is usually used for the test. However, when conducting tests on most testing machines, a person needs to manually use a water bottle to dispense water onto the fixture heating block. The amount of water dispensed cannot be quantified, which affects the test quality. In addition, the manual water dispensing operation is too inefficient and inconvenient. Therefore, an automatic water injection device for thermal resistance testing is proposed to solve the above problems. Utility Model Content

[0004] In view of the shortcomings of the prior art, the utility model provides an automatic water injection device for thermal resistance testing, which has the advantages of improving test efficiency and solves the problem of low efficiency due to the need to manually use a water bottle to manually add water to the fixture heating block.

[0005] To achieve the above object, the utility model provides the following technical solutions: an automatic water filling device for thermal resistance testing, comprising a water filling box, a water inlet is fixed on the top of the water filling box, a sealing cover is threadedly connected to the outer surface of the water inlet, a prompt component is arranged inside the water filling box and penetrates to the outside of the water filling box, and the prompt component is used to prompt the water volume;

[0006] A water injection pump is fixed to the right side of the water injection box, a connecting pipe is fixed to the right side of the water injection pump, a test fixture is fixed to the right side of the connecting pipe, and a test board is fixed to the back of the test fixture;

[0007] The prompt component includes a sliding block, a floating plate, a connecting plate, a metal plate and a circuit board. The sliding block is slidably connected to the inside of the water filling box, the sliding block passes through the top of the water filling box, the bottom of the sliding block is fixed to the floating plate, the top of the sliding block is fixed to the connecting plate, the bottom of the connecting plate is fixed to the metal plate, the top of the water filling box is fixed to the circuit board, and the metal plate is fitted with the circuit board.

[0008] Furthermore, a threaded strip is fixed on the outer surface of the water inlet, and a threaded hole matching the threaded strip is formed at the bottom of the sealing cover.

[0009] Furthermore, a sealing gasket is fixed to the bottom of the sealing cover, and a sealing groove matched with the sealing gasket is opened on the top of the water filling box.

[0010] Furthermore, a heating rod groove is provided on the top of the test plate, and a water injection pipe groove is provided on the left side of the test plate.

[0011] Furthermore, the test fixture includes a heating block fixed to the test plate, a temperature measuring block is fixed on the front of the heating block, and a water injection hole is opened on the front of the temperature measuring block.

[0012] Furthermore, a water receiving groove is provided on the front of the heating block, and a heating rod interface is provided on the top of the heating block.

[0013] Furthermore, a stabilizing block is fixed inside the water filling box, and stabilizing grooves slidably connected to the stabilizing block are provided on both left and right sides of the sliding block.

[0014] Furthermore, the water injection box, the water inlet, the water injection pump, the connecting pipe and the interior of the test fixture are interconnected.

[0015] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0016] The automatic water filling device for thermal resistance testing can draw the water in the water filling tank to the inside of the test fixture through the connecting pipe by starting the water filling pump, thereby eliminating the need for manual watering. The water output speed per unit time of the water filling pump can be controlled so that the amount of water filled each time can be controlled. In addition, the reminder component can be used to remind the staff so that the water can be replenished in time when the water is insufficient. The overall structure is simple, which can effectively improve the test efficiency, making the overall structure more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a three-dimensional diagram of the test fixture structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the prompt component of the utility model.

[0020] In the figure: 1 water filling tank, 2 water inlet, 3 sealing cover, 4 prompt component, 401 sliding block, 402 floating plate, 403 connecting plate, 404 metal plate, 405 circuit board, 5 water filling pump, 6 connecting pipe, 7 test fixture, 701 heating block, 702 temperature measuring block, 703 water filling hole, 704 water receiving trough, 705 heating rod interface, 8 test plate, 9 water filling pipe trough, 10 heating rod trough, 11 sealing pad, 12 stabilizing block. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figures 1 to 2 , an automatic water filling device for thermal resistance testing in this embodiment includes a water filling box 1, which is used to store water, a water inlet 2 is fixed on the top of the water filling box 1, and a sealing cover 3 is threadedly connected to the outer surface of the water inlet 2, and a threaded bar is fixed on the outer surface of the water inlet 2, and a threaded hole matched with the threaded bar is provided at the bottom of the sealing cover 3. Through the threaded connection, the sealing cover 3 can be separated from the water inlet 2 when the sealing cover 3 is rotated, a sealing gasket 11 is fixed at the bottom of the sealing cover 3, and a sealing groove matched with the sealing gasket 11 is provided on the top of the water filling box 1. The sealing gasket 11 can improve the sealing between the sealing cover 3 and the water filling box 1, and a prompt component 4 is provided inside the water filling box 1 and runs through the outside of the water filling box 1, and the prompt component 4 is used to prompt the water volume.

[0023] In addition, a water injection pump 5 is fixed to the right side of the water injection tank 1. The water output speed of the water injection pump 5 per unit time can be controlled so that the amount of water injected each time can be controlled. A connecting pipe 6 is fixed to the right side of the water injection pump 5. A test fixture 7 is fixed to the right side of the connecting pipe 6. The test fixture 7 includes a heating block 701 fixed to the test plate 8. A temperature measuring block 702 is fixed to the front of the heating block 701. A water injection hole 703 is provided on the front of the temperature measuring block 702. The water injection holes 703 are two 1.2 mm holes, which can ensure the water volume and stability.

[0024] Furthermore, a water receiving groove 704 is provided on the front of the heating block 701, and the water receiving groove 704 is used to prevent excess water from flowing out of the outside of the test fixture 7. A heating rod interface 705 is provided on the top of the heating block 701, and the heating rod interface 705 allows the heating block 701 to be connected to an external heating rod. A test board 8 is fixed to the back of the test fixture 7, a heating rod groove 10 is provided on the top of the test board 8, and a water injection pipe groove 9 is provided on the left side of the test board 8.

[0025] In this embodiment, the water injection box 1, the water inlet 2, the water injection pump 5, the connecting pipe 6 and the interior of the test fixture 7 are interconnected.

[0026] In general, by starting the water injection pump 5, water can flow to the front of the temperature measuring block 702, so there is no need for manual water tapping. By controlling the water output speed of the water injection pump 5 per unit time, the stability of the water injection volume can be guaranteed, thereby improving the efficiency of the test.

[0027] See also Figure 3 The prompt component 4 in this embodiment includes a sliding block 401, a floating plate 402, a connecting plate 403, a metal plate 404 and a circuit board 405. The sliding block 401 is slidably connected to the inside of the water filling tank 1. A stabilizing block 12 is fixed inside the water filling tank 1. Stabilizing grooves slidably connected to the stabilizing block 12 are provided on the left and right sides of the sliding block 401. The stabilizing block 12 is set to make the movement of the sliding block 401 more stable. The sliding block 401 penetrates to the top of the water filling tank 1, and the bottom of the sliding block 401 is fixed to the floating plate 402. The floating plate 402 has buoyancy, so that the floating plate 402 can move with the water level.

[0028] In addition, the top of the sliding block 401 is fixed to the connecting plate 403, the bottom of the connecting plate 403 is fixed to the metal plate 404, the top of the water filling tank 1 is fixed to the circuit board 405, and the metal plate 404 is fitted with the circuit board 405. When the metal plate 404 is fitted with the circuit board 405, the contacts on the circuit board 405 are connected, so that the circuit board 405 can transmit electrical signals.

[0029] In general, since the float plate 402 has buoyancy, the prompt component 4 as a whole will move along with the water level, so that the staff can quickly judge the amount of water inside the water tank 1 according to the height of the prompt component 4. When the metal plate 404 and the circuit board 405 are in contact, the electrical signal generated by the circuit board 405 will activate the external alarm to provide a prompt.

[0030] The electrical components appearing in the text are all electrically connected to the controller and the power supply. The control method of the utility model is controlled by the controller. The control circuit of the controller can be realized by simple programming by technicians in this field. The provision of power supply is also common knowledge in this field. The utility model is mainly used to protect mechanical devices, so the utility model will no longer explain the control method and circuit connection in detail.

[0031] The working principle of the above embodiment is:

[0032] By starting the water injection pump 5, the water inside the water injection tank 1 can be passed through the connecting pipe 6, so that the water flows to the inside of the heating block 701 and the temperature measuring block 702, and then the water can move to the top of the temperature measuring block 702 through the water injection hole 703, and there is no need for manual watering. When the water level inside the water injection tank 1 decreases, the floating plate 402 will lose the support of buoyancy and follow the water level to drop, so that the sliding block 401 and the connecting plate 403 move downward together, so that the staff can effectively judge the water level inside the water injection tank 1 according to the height of the sliding block 401. When the water level drops to a certain level, the metal plate 404 will move downward to contact the circuit board 405, so that the contacts on the circuit board 405 are connected, thereby generating an electrical signal, so that the external alarm is turned on, and then the staff can be prompted so that the staff can replenish water in time. The overall structure is simple, which effectively improves the test efficiency, making the overall more practical.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0034] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention.

Claims

1. An automatic water injection device for thermal resistance testing, comprising a water injection box (1), characterized in that: A water inlet (2) is fixed on the top of the water filling box (1), a sealing cover (3) is threadedly connected to the outer surface of the water inlet (2), and a prompt component (4) is provided inside the water filling box (1) and extends to the outside of the water filling box (1), and the prompt component (4) is used to indicate the water volume; A water injection pump (5) is fixed to the right side of the water injection box (1), a connecting pipe (6) is fixed to the right side of the water injection pump (5), a test fixture (7) is fixed to the right side of the connecting pipe (6), and a test board (8) is fixed to the back side of the test fixture (7); The prompt component (4) comprises a sliding block (401), a floating plate (402), a connecting plate (403), a metal plate (404) and a circuit board (405); the sliding block (401) is slidably connected to the inside of the water filling box (1); the sliding block (401) penetrates to the top of the water filling box (1); the bottom of the sliding block (401) is fixed to the floating plate (402); the top of the sliding block (401) is fixed to the connecting plate (403); the bottom of the connecting plate (403) is fixed to the metal plate (404); the top of the water filling box (1) is fixed to the circuit board (405); and the metal plate (404) is in contact with the circuit board (405).

2. The automatic water injection device for thermal resistance testing according to claim 1, characterized in that: A threaded strip is fixed on the outer surface of the water inlet (2), and a threaded hole matching the threaded strip is provided at the bottom of the sealing cover (3).

3. The automatic water injection device for thermal resistance testing according to claim 1 is characterized in that: A sealing gasket (11) is fixed to the bottom of the sealing cover (3), and a sealing groove matched with the sealing gasket (11) is provided on the top of the water injection box (1).

4. The automatic water injection device for thermal resistance testing according to claim 1, characterized in that: A heating rod groove (10) is provided on the top of the test plate (8), and a water injection pipe groove (9) is provided on the left side of the test plate (8).

5. The automatic water injection device for thermal resistance testing according to claim 1 is characterized in that: The test fixture (7) comprises a heating block (701) fixed to a test plate (8), a temperature measuring block (702) is fixed on the front of the heating block (701), and a water injection hole (703) is provided on the front of the temperature measuring block (702).

6. The automatic water injection device for thermal resistance testing according to claim 5, characterized in that: A water receiving groove (704) is provided on the front of the heating block (701), and a heating rod interface (705) is provided on the top of the heating block (701).

7. The automatic water injection device for thermal resistance testing according to claim 1, characterized in that: A stabilizing block (12) is fixed inside the water injection box (1), and stabilizing grooves slidably connected to the stabilizing block (12) are provided on both left and right sides of the sliding block (401).

8. The automatic water injection device for thermal resistance testing according to claim 1, characterized in that: The water injection box (1), the water inlet (2), the water injection pump (5), the connecting pipe (6) and the interior of the test fixture (7) are interconnected.

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