Phase change material testing mechanism

Abstract

The utility model relates to the field of phase-change material testing, and discloses a phase-change material testing mechanism which comprises a base provided with a guide pillar; the test platform slides up and down along the guide columns; the buffer piece is arranged between the base and the test platform, and the test platform is elastically supported on the base by the buffer piece; the medium accommodating cavity is arranged on the test platform; the test material accommodating cavity is positioned in the medium accommodating cavity; the vibration exciter is arranged on the test platform and is used for exciting vibration; and the heat flow meter is arranged on the base and comprises a detection terminal extending into the test material accommodating cavity. Vibration is excited through the vibration actuator arranged on the test platform, vibration working environments such as a heat pump and the like can be simulated when the phase-change material is tested, and the reliability of the phase-change material test is improved.

Description

Technical Field

[0001] The utility model relates to the testing field of phase change materials, in particular to a phase change material testing mechanism. Background Art

[0002] As the application field of phase change materials continues to expand, the simulation test of phase change materials is currently limited to static environment, and the credibility of the simulation test becomes low. When phase change materials are used in a vibration environment such as heat pumps, such as the vibration working environment formed by the vibration of the compressor of the heat pump when it is working, the static test cannot well simulate the performance of the phase change material in this working environment, and it is difficult to accurately reflect the performance of the phase change material. For this reason, there is still room for improvement in the current phase change material testing institutions. Utility Model Content

[0003] The utility model aims to improve at least one technical problem in the background technology.

[0004] The utility model provides a phase change material testing mechanism, comprising:

[0005] A base having guide posts;

[0006] A test platform slides up and down along the guide column;

[0007] A buffer, the buffer is arranged between the base and the test platform, and elastically supports the test platform on the base;

[0008] A medium containing chamber, arranged on the test platform;

[0009] A test material containing chamber, located in the medium containing chamber;

[0010] an actuator, the actuator being arranged on the test platform and used for exciting vibration;

[0011] The heat flow meter is arranged on the base and comprises a detection terminal extending into the test material accommodating cavity.

[0012] The beneficial effects of the utility model are as follows: the phase change material testing mechanism configures the test platform and the base into a vibration environment that can only slide up and down with elastic support through a buffer, and excites vibration by an actuator arranged on the test platform. When testing the phase change material, it can simulate a vibration working environment such as a heat pump, thereby improving the reliability of the phase change material test.

[0013] As some sub-solutions of the above technical solution, the actuator includes a motor, a rocker and a weight block, the motor is arranged on the test platform, the motor drives the rocker to rotate, and the weight block is fixed on the rocker.

[0014] As some sub-solutions of the above technical solution, the weight block is detachably connected to the rocker.

[0015] As some sub-schemes of the above technical scheme, the rocker includes a driving side and a weight-bearing side, the driving side is connected to the motor drive, the weight-bearing side is provided with a first "X"-shaped fixing groove, the actuator also includes a weight-bearing splint and fixing bolts, the weight block is located between the weight-bearing splint and the weight-bearing side of the rocker, the weight-bearing splint is provided with a second "X"-shaped fixing groove, the number of the fixing bolts is four groups, the four groups of fixing bolts are arranged in a cross shape outside the weight block, and the fixing bolts all pass through the first fixing groove and the second fixing groove to clamp and fix the weight-bearing splint, the weight block and the weight-bearing side of the rocker.

[0016] As some sub-solutions of the above technical solution, the test platform is provided with a guide hole, and the guide hole is sleeved outside the guide column.

[0017] As some sub-solutions of the above technical solution, the buffer member is a rubber sleeve, which is arranged outside the guide column, the top side of the rubber sleeve abuts against the bottom surface of the test platform, and the bottom side of the rubber sleeve abuts against the top surface of the base.

[0018] As some sub-solutions of the above technical solution, the number of the guide pillars is four, and the four guide pillars are distributed on the base at four corners. The number of the rubber sleeves is four, and each rubber sleeve is correspondingly sleeved outside one of the guide pillars. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0020] Figure 1 It is a structural schematic diagram of the phase change material testing mechanism of the utility model;

[0021] Figure 2 It is an exploded view of the phase change material testing mechanism of the utility model, in which the load block is cylindrical;

[0022] Figure 3 Another exploded view of the vibrator of the phase change material testing mechanism of the utility model, in which the load block is a rectangular parallelepiped;

[0023] Figure 4 It is a cross-sectional view of the medium holding chamber and the test material holding chamber.

[0024] In the attached figure:

[0025] 1-base; 11-guide column;

[0026] 2-test platform; 21-guide hole;

[0027] 3- Buffer;

[0028] 4-vibrator; 41-motor; 42-rocker; 421-first fixing slot; 43-weight block; 44-weight splint; 441-second fixing slot; 45-fixing bolt;

[0029] 5-medium containing chamber; 51-first medium pipe; 52-second medium pipe;

[0030] 6 - test material containing chamber; 61 - first material tube; 62 - second material tube. DETAILED DESCRIPTION

[0031] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0032] In the description of the present utility model, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present utility model based on the specific content of the technical solution.

[0033] Combine the following Figures 1 to 4 The embodiments of the present utility model are described.

[0034] The present embodiment relates to a phase change material testing facility. Phase change material refers to a substance that can undergo a phase change between solid, liquid or gas under different temperature and pressure conditions. This type of material can absorb or release a large amount of heat energy during the phase change process, and therefore has a wide range of application value in the fields of thermal energy storage and temperature control, such as insulation materials for buildings, refrigerants for air-conditioning systems, and solar thermal energy storage systems. The main function of a phase change material testing facility is to evaluate and test the phase change characteristics of these materials, including key parameters such as phase change temperature, latent heat of phase change, thermal stability, and cycle performance. Through precise testing, a scientific basis can be provided for the optimization and application of phase change materials.

[0035] Currently, existing phase change material tests are all conducted under the condition that the phase change material is in a static state, which makes it difficult to accurately simulate an environment with a vibration source such as an air conditioning system or a heat pump system. Therefore, this embodiment provides a phase change material testing mechanism.

[0036] The phase change material testing mechanism in this embodiment includes:

[0037] A base 1, which is provided with a guide column 11;

[0038] The test platform 2 slides up and down along the guide column 11;

[0039] A buffer member 3, wherein the buffer member 3 is disposed between the base 1 and the test platform 2, and elastically supports the test platform 2 on the base 1;

[0040] A medium containing chamber 5, provided on the test platform 2;

[0041] A test material containing chamber 6, located in the medium containing chamber 5;

[0042] A vibrator 4, the vibrator 4 is arranged on the test platform 2 and is used to excite vibration;

[0043] The heat flow meter (not shown in the figure) is arranged on the base 1 and includes a detection terminal extending into the test material accommodating cavity 6.

[0044] The phase change material testing mechanism configures the test platform 2 and the base 1 to be a vibration environment that can only slide up and down with elastic support through the buffer 3. The vibration is excited by the actuator 4 set on the test platform 2. When testing the phase change material, it can simulate a vibration working environment such as a heat pump, thereby improving the reliability of the phase change material test. The test mechanism is also equipped with a heat flow meter, whose detection terminal extends into the test material accommodating cavity 6, and can monitor the heat flow changes of the phase change material in a vibration environment in real time. By accurately measuring the heat flow, the thermal conductivity performance of the phase change material under dynamic conditions can be further analyzed.

[0045] The working principle of the phase change material testing mechanism is as follows: first, the heat transfer medium is filled into the medium containing chamber 5 through the first medium tube 51, and the phase change material to be tested is filled into the test material containing chamber 6 through the first material tube 61, and then the vibration is excited by the vibrator 4 on the test platform 2 to simulate the vibration environment of equipment such as heat pumps in actual applications. During the vibration process, the detection terminal of the heat flow meter monitors the heat flow changes in the test material containing chamber 6 in real time, so as to obtain the thermal conductivity performance data of the phase change material under dynamic conditions. By accurately measuring the heat flow, the thermal conductivity performance of the phase change material under a vibration environment can be analyzed, and then its performance in actual applications can be evaluated. This testing method can provide a more accurate and comprehensive performance evaluation of phase change materials, ensuring its reliability and efficiency in actual applications.

[0046] It should be noted that the medium containing chamber 5 is connected to the first medium pipe 51 for filling the medium and the second medium pipe 52 for medium outflow. The test material containing chamber 6 is connected to the first material pipe 61 for filling the phase change material and the second material pipe 62 for discharging the phase change material. Figure 4 The inner bore of the narrow tube shown in .

[0047] Specifically, the vibrator 4 includes a motor 41, a rocker 42 and a weight block 43. The motor 41 is arranged on the test platform 2, the motor 41 drives the rocker 42 to rotate, and the weight block 43 is fixed on the rocker 42. When the motor 41 is working, the rocker 42 is driven to rotate, and the rocker 42 drives the weight block 43 to rotate, simulating the vibration generated when the compressor, water pump and other equipment are working. The vibrator 4 adopts this structure and has the advantage of low cost.

[0048] According to different use environments, the heat pump has different power requirements, and corresponding compressors of different powers are used. In order to meet the vibrations of different compressors, the weight block 43 is detachably connected to the rocker 42. The structure of the detachable connection between the weight block 43 and the rocker 42 enables the weight block 43 to be replaced according to the needs of different vibration simulation environments.

[0049] The rocker 42 includes a driving side and a load-bearing side, the driving side is connected to the motor 41, and the load-bearing side is provided with a first fixing groove 421 in the shape of a "X". The actuator also includes a load-bearing clamp 44 and fixing bolts 45. The load block 43 is located between the load-bearing clamp 44 and the load-bearing side of the rocker 42. The load-bearing clamp 44 is provided with a second fixing groove 441 in the shape of a "X". The number of the fixing bolts 45 is four groups, and the four groups of fixing bolts 45 are arranged in a cross shape outside the load block 43. The fixing bolts 45 all pass through the first fixing groove 421 and the second fixing groove 441 to clamp and fix the weight clamp 44, the load block 43 and the load-bearing side of the rocker 42.

[0050] The second fixing groove 441 in the shape of a cross on the weight-bearing clamping plate 44 matches the first fixing groove 421, so that the fixing bolt 45 can pass through the two fixing grooves, thereby tightly clamping and fixing the weight-bearing clamping plate 44, the weight block 43 and the weight-bearing side of the rocker 42 together. In addition, four groups of fixing bolts 45 distributed in a cross shape are used to fix and limit the weight block 43, which can flexibly adapt to weight blocks 43 of different shapes, such as Figure 2 The cylindrical weight block 43 shown and Figure 3 The rectangular load-bearing block 43 is shown.

[0051] In order to enable the test platform 2 to stably slide up and down along the guide pillar 11, a guide hole 21 is provided on the test platform 2, and the guide hole 21 is sleeved outside the guide pillar 11. The size of the guide hole 21 matches the guide pillar 11 to accurately limit the position of the test platform 2, and as much as possible, the test platform 2 is limited to the freedom of movement of vibration in the up and down direction.

[0052] In order to more fully simulate the vibration in the use environment of heat pumps and air conditioners, the buffer 3 is a rubber sleeve, which is arranged outside the guide column 11, and the top side of the rubber sleeve abuts against the bottom surface of the test platform 2, and the bottom side of the rubber sleeve abuts against the top surface of the base 1. The buffer 3 is located between the test platform 2 and the base 1, and the test platform 2 is kept above the buffer 3 by its own weight. The rubber buffer 3 can simulate the buffer structure of the compressor base 1 in a conventional heat pump, and improve the credibility of the phase change material performance test.

[0053] In this embodiment, there are four guide posts 11, which are distributed at four corners on the base 1, and there are four rubber sleeves, each of which is correspondingly sleeved outside one of the guide posts 11. The use of four-corner guide posts 11 distributed at four corners can provide better positioning for the test platform 2.

[0054] The heat flow meter mentioned in this embodiment is a commonly used instrument in the field of phase change testing, and its structure will not be described in detail here.

[0055] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0056] In the description of the utility model, if there is a short sentence containing multiple parallel features, the attributive defines the closest feature, for example: B, C, and E connected to D are arranged on A, which means that B is arranged on A and E is connected to D, and does not constitute a limitation on C; but attributives that express the relationship between features, such as "interval arrangement" or "circular arrangement", etc., do not belong to this category. If the word "all" is preceded by an attributive, it means that all the features in the short sentence are limited, such as B, C, and D are all arranged on A, which means that B, C, and D are all arranged on A. For a sentence with an omitted subject, the omitted subject is the subject of the previous sentence, that is, B is arranged on A, including C, which means that B is arranged on A and A includes C.

[0057] The preferred implementation modes of the present invention are specifically described above, but the present invention is not limited to the described embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the present invention, and these equivalent modifications or substitutions are all included in the scope defined by the claims of the present invention.

Claims

1. Phase change material testing mechanism, characterized by: include: A base (1) provided with a guide column (11); The test platform (2) slides up and down along the guide column (11); A buffer member (3), the buffer member (3) being arranged between the base (1) and the test platform (2) and elastically supporting the test platform (2) on the base (1); A medium containing chamber (5), arranged on the test platform (2); A test material containing chamber (6), located in the medium containing chamber (5); an actuator (4), the actuator (4) being arranged on the test platform (2) and used for exciting vibration; A heat flow meter is arranged on the base (1) and comprises a detection terminal extending into the test material accommodating cavity (6).

2. The phase change material testing mechanism according to claim 1, characterized in that: The vibrator (4) comprises a motor (41), a rocker (42) and a weight block (43); the motor (41) is arranged on the test platform (2); the motor (41) drives the rocker (42) to rotate; and the weight block (43) is fixed on the rocker (42).

3. The phase change material testing mechanism according to claim 2, characterized in that: The load-bearing block (43) is detachably connected to the rocker (42).

4. The phase change material testing mechanism according to claim 3, characterized in that: The rocker (42) comprises a driving side and a load-bearing side, the driving side being drivingly connected to the motor (41), the load-bearing side being provided with a first fixing groove (421) in the shape of a "cross", the actuator (4) further comprising a load-bearing clamping plate (44) and fixing bolts (45), the load-bearing block (43) being located between the load-bearing clamping plate (44) and the load-bearing side of the rocker (42), the load-bearing clamping plate (44) being provided with a second fixing groove (441) in the shape of a "cross", the number of the fixing bolts (45) being four groups, the four groups of fixing bolts (45) being arranged in a cross shape outside the load-bearing block (43), the fixing bolts (45) all passing through the first fixing groove (421) and the second fixing groove (441) to clamp and fix the load-bearing clamping plate (44), the load-bearing block (43) and the load-bearing side of the rocker (42).

5. The phase change material testing mechanism according to claim 1, characterized in that: The test platform (2) is provided with a guide hole (21), and the guide hole (21) is sleeved outside the guide column (11).

6. The phase change material testing mechanism according to claim 1, characterized in that: The buffer member (3) is a rubber sleeve, which is arranged outside the guide column (11), the top side of the rubber sleeve abuts against the bottom surface of the test platform (2), and the bottom side of the rubber sleeve abuts against the top surface of the base (1).

7. The phase change material testing mechanism according to claim 6, characterized in that: The number of the guide pillars (11) is four, and the four guide pillars (11) are distributed at four corners on the base (1); the number of the rubber sleeves is four, and each rubber sleeve is correspondingly sleeved outside one of the guide pillars (11).

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