Phase change material automatic detection device for motor

Abstract

The invention discloses an automatic detection device for a phase-change material for a motor, and relates to the technical field of phase-change material detection. Comprising a thermal dilatometer body, a hearth is installed on a sliding rail above the thermal dilatometer body, a measuring tube is connected to a mounting plate above the thermal dilatometer body in a penetrating mode and sleeved with a base plate, and a sliding tube is connected to the side, located on the hearth, of the base plate. Through the arrangement of the base plate, the sliding pipe, the limiting ring, the rotating rod, the pushing plate and the conversion plate, a limiting block can be driven to move in the hearth movement process, the position of a sample rod in the measuring pipe can be calibrated through movement of the limiting block, and the axis of the sample rod coincides with the axis of a quartz stone rod; therefore, the situation that the displacement distance of the quartz stone rod deviates due to inclination of the sample rod is reduced, the accuracy of the thermal expansion coefficient value of the sample rod is guaranteed, the opening of the hearth is sealed through the four sets of sealing plates and the compensation frame which are provided with the sealing assemblies, and the situation that heat exchange occurs between the internal environment and the external environment of the hearth is reduced.

Description

Technical Field

[0001] This invention relates to the field of phase change material testing technology, specifically to an automatic testing device for phase change materials used in motors. Background Technology

[0002] Phase change materials (PCMs) are functional materials that utilize the absorption or release of latent heat during phase transitions to achieve energy storage and temperature regulation. Their core principle is the solid-liquid, liquid-gas, or solid-solid phase transition at a specific temperature, during which a large amount of heat energy is absorbed / released to maintain a constant temperature. PCMs are mainly classified into three categories: inorganic PCMs, organic PCMs, and composite PCMs. Inorganic PCMs primarily include crystalline hydrated salts, molten salts, metals, and alloys. The coefficient of thermal expansion is a key parameter for evaluating the volume or length change of a material under temperature variations, directly affecting its thermal stability and application reliability. Therefore, a thermal expansion meter is used to measure the coefficient of thermal expansion during the testing of PCMs.

[0003] When existing thermal expansion meters test photographic materials, a phase change material sample rod of a fixed size needs to be placed in the opening of the support, and the sample rod should be in contact with the quartz rod inside the support. However, due to the vibration of the thermal expansion meter during the movement of the furnace, the sample rod may not be aligned with the axis of the quartz rod. The misalignment of the sample rod will cause the displacement sensor to deviate during thermal expansion. In addition, the opening of the furnace allows heat exchange between the inside of the furnace and the external environment, resulting in an unstable heating rate, which in turn affects the heating time of the furnace.

[0004] To address the aforementioned issues, innovative design based on existing methods is urgently needed. Summary of the Invention

[0005] The purpose of this invention is to provide an automatic detection device for phase change materials used in motors, which solves the problem in the prior art where, after the sample rod is placed, the thermal expansion meter vibrates during the movement of the furnace, causing the sample rod to misalign with the axis of the quartz rod. This misalignment leads to measurement deviations in the displacement sensor during thermal expansion. This invention provides a significantly different solution from existing technologies, addressing the problem of overly simplistic solutions.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an automatic detection device for phase change materials used in motors, comprising a thermal expansion meter body, a furnace mounted on a slide rail above the thermal expansion meter body, a measuring tube connected through a mounting plate above the thermal expansion meter body, a base plate sleeved on the measuring tube, a sliding tube connected to the base plate on one side of the furnace, a limiting ring connected to the other side of the sliding tube connected to the base plate, a limiting block slidably connected inside the limiting ring, a rotating rod rotatably connected to the bottom of the limiting block, a guide groove opened in the measuring tube frame, and the rotating rod embedded in the guide groove of the measuring tube frame, a push plate connected to the furnace on one side of the measuring tube, and a transformation plate rotatably connected to the mounting plate above the thermal expansion meter body on one side of the furnace via a connecting frame; The compensation component is located on the outside of the sliding tube, and the sealing component is located at the opening on the outer wall of the furnace.

[0007] Preferably, the compensation assembly has a sliding sleeve connected to one side of the measuring tube mounting plate. A transmission rod is provided inside the sliding sleeve, and the transmission rod has a spiral groove. A spherical protrusion is provided inside the sliding sleeve, and the spherical protrusion is embedded in the spiral groove of the transmission rod. A compensation frame is sleeved on the outer wall of the sliding tube, and the transmission rod is rotatably connected to the compensation frame. A threaded rod is rotatably connected inside the compensation frame. The threaded rod is threadedly connected to a sliding plate, and the sliding plate is slidably connected to the compensation frame. A toothed ring is sleeved on the transmission rod, and a ratchet is sleeved on the threaded rod. The ratchet rack and the toothed ring rack are the same size. A sealing gasket is provided on the outside of the compensation frame.

[0008] Preferably, the sealing assembly has a transmission frame connected to the outer wall of the furnace, a transmission plate slidably connected inside the transmission frame, a connecting plate rotatably connected to one side of the transmission plate on the measuring tube, and a sealing plate rotatably connected to the other side of the connecting plate.

[0009] Preferably, a first spring is connected to the substrate on one side of the measuring tube, and the first spring is connected to the mounting plate above the thermal expansion meter body.

[0010] Preferably, the substrate is connected to a guide rod on the side of the first spring, and the guide rod passes through the hole formed in the center of the first spring and is slidably connected to the thermal expansion meter body mounting plate.

[0011] Preferably, the push plate is rotatably connected to the conversion plate and the push roller is provided with a smooth rubber pad on the surface of the push roller.

[0012] Preferably, a sliding rod is fixedly connected to the inner side of the conveying frame, and an anti-detachment disc is fixedly connected to the other end of the sliding rod, and the sliding rod is slidably connected to the conveying plate.

[0013] Preferably, a second spring is connected to the inner sidewall of the conveying frame, and the second spring is connected to the sealing plate.

[0014] Preferably, the sealing plate is slidably connected to the limiting rod, and the limiting rod is fixedly connected to the transmission frame, and the limiting rod passes through the hole in the center of the second spring.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention, by setting up a base plate, a sliding tube, a limiting ring, a rotating rod, a pushing plate, and a transforming plate, can drive the limiting block to move during the movement of the furnace. The movement of the limiting block can calibrate the position of the sample rod inside the measuring tube, so that the sample rod coincides with the axis of the quartz rod, thereby reducing the deviation of the displacement distance of the quartz rod caused by the tilting of the sample rod, and thus ensuring the accuracy of the thermal expansion coefficient value of the sample rod.

[0016] 2. In this invention, by setting a sealing component, four sets of sealing plates can be moved during the movement of the furnace. The movement and assembly of the four sets of sealing plates causes the sealing gasket on the outside of the compensation frame to deform. In turn, the four sets of sealing plates and the compensation frame seal the furnace opening, reducing the heat exchange between the internal and external environments of the furnace and improving the stability of the furnace heating rate.

[0017] 3. In this invention, a compensation component is provided that can drive the sliding plate to move in a very small amount during the movement of the furnace. The movement of the sliding plate compresses and deforms the sealing gasket on the outside of the compensation frame, compensating for the wear caused by friction between the sealing gasket and the sealing plate, ensuring the sealing effect of the compensation frame, and thus extending the replacement time of the sealing gasket of the compensation frame. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the main structure of the present invention; Figure 2 This is a schematic diagram of the cross-sectional structure of the limiting ring of the present invention; Figure 3 This is a schematic diagram of the top surface structure of the present invention; Figure 4 For the present invention Figure 3 Enlarged diagram of point A in the diagram; Figure 5 For the present invention Figure 3 Enlarged diagram of point B in the image; Figure 6 This is a schematic diagram of the internal structure of the compensation frame of the present invention; Figure 7 For the present invention Figure 6 Enlarged diagram of point C in the diagram; Figure 8 This is a schematic diagram of the side structure of the sealing frame of the present invention; Figure 9 For the present invention Figure 8 Enlarged diagram of point D in the diagram; Figure 10This is a schematic diagram of the furnace position adjustment according to the present invention; Figure 11 For the present invention Figure 10 Enlarged diagram of point E in the diagram.

[0019] In the diagram: 1. Thermal expansion meter body; 2. Furnace chamber; 3. Measuring tube; 4. Base plate; 5. Sliding tube; 6. Limiting ring; 7. Limiting block; 8. Rotating rod; 9. Compensation assembly; 91. Sliding sleeve; 92. Transmitting rod; 93. Compensation frame; 94. Threaded rod; 95. Sliding plate; 96. Ratchet; 97. Toothed ring; 10. Sealing assembly; 101. Transmitting frame; 102. Transmitting plate; 103. Connecting plate; 104. Sealing plate; 11. Pushing plate; 12. Transformation plate. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Please see Figures 1-11 This invention provides a technical solution: an automatic detection device for phase change materials used in motors, comprising a thermal expansion meter body 1, a furnace 2 mounted on a slide rail above the thermal expansion meter body 1, a measuring tube 3 connected through a mounting plate above the thermal expansion meter body 1, a base plate 4 sleeved on the measuring tube 3, a sliding tube 5 connected to one side of the base plate 4 located in the furnace 2, a limiting ring 6 connected to the other side of the sliding tube 5 connected to the base plate 4, a limiting block 7 slidably connected inside the limiting ring 6, a rotating rod 8 rotatably connected to the bottom of the limiting block 7, a guide groove opened in the frame of the measuring tube 3, and the rotating rod 8 embedded in the guide groove of the frame of the measuring tube 3, a push plate 11 connected to one side of the furnace 2 located in the measuring tube 3, and a transformation plate 12 rotatably connected to the mounting plate above the thermal expansion meter body 1 located on one side of the furnace 2 via a connecting frame, the furnace 2 moves during movement, driving the limiting block 7 to move, the movement of the limiting block 7 can calibrate the position of the sample rod inside the measuring tube 3, so that the axis of the sample rod coincides with that of the quartz rod, thereby reducing the deviation of the displacement distance of the quartz rod caused by the tilting of the sample rod.

[0022] Compensation component 9 is located on the outside of sliding tube 5, and sealing component 10 is located at the opening on the outer wall of furnace 2.

[0023] In one embodiment of the present invention, the compensation assembly 9 has a sliding sleeve 91 connected to one side of the mounting plate of the measuring tube 3. A transmission rod 92 is disposed inside the sliding sleeve 91, and the transmission rod 92 has a spiral groove. A spherical protrusion is disposed inside the sliding sleeve 91, and the spherical protrusion is embedded in the spiral groove of the transmission rod 92. A compensation frame 93 is sleeved on the outer wall of the sliding tube 5, and the transmission rod 92 is rotatably connected to the compensation frame 93. A threaded rod 94 is rotatably connected inside the compensation frame 93, and a sliding plate 95 is threadedly connected to the threaded rod 94. The compensating frame 93 is slidably connected to the transmission rod 92, which is fitted with a toothed ring 97. The threaded rod 94 is fitted with a ratchet 96, and the rack of the ratchet 96 is the same size as the rack of the toothed ring 97. A sealing gasket is provided on the outside of the compensating frame 93. During the movement of the furnace 2, the sliding plate 95 can be moved by a very small amplitude. The movement of the sliding plate 95 compresses the sealing gasket on the outside of the compensating frame 93, causing it to deform. This compensates for the wear caused by the friction between the sealing gasket and the sealing plate 104, ensuring the sealing effect of the compensating frame 93 and thus extending the replacement time of the sealing gasket of the compensating frame 93.

[0024] In one embodiment of the present invention, the sealing assembly 10 has a transmission frame 101 connected to the outer wall of the furnace 2. A transmission plate 102 is slidably connected inside the transmission frame 101. A connecting plate 103 is rotatably connected to one side of the measuring tube 3, and a sealing plate 104 is rotatably connected to the other side of the connecting plate 103. During the movement of the furnace 2, the four sets of sealing plates 104 can be driven to move. The movement and splicing of the four sets of sealing plates 104 causes the sealing gasket on the outside of the compensation frame 93 to deform. Thus, the opening of the furnace 2 is sealed by the four sets of sealing plates 104 and the compensation frame 93, reducing the heat exchange between the internal environment and the external environment of the furnace 2.

[0025] In one embodiment of the present invention, a first spring is connected to the side of the measuring tube 3 of the substrate 4, and the first spring is connected to the mounting plate above the thermal expansion meter body 1. A guide rod is connected to the side of the first spring of the substrate 4, and the guide rod passes through the hole formed in the center of the first spring and is slidably connected to the mounting plate of the thermal expansion meter body 1. By providing the first spring, the substrate 4 can be driven to reset, and the guide rod can limit the substrate 4 to reduce the displacement of the substrate 4 during movement.

[0026] In one embodiment of the present invention, the push plate 11 is rotatably connected to the conversion plate 12 and the push roller is provided with a smooth rubber pad on the surface of the push roller. By providing the push roller, the conversion plate 12 can be better pushed to rotate, and the friction damage of the conversion plate 12 during the transmission process can be reduced.

[0027] In one embodiment of the present invention, a sliding rod is fixedly connected to the inner side of the communication frame 101, and an anti-detachment disc is fixedly connected to the other end of the sliding rod. The sliding rod is slidably connected to the communication plate 102. By providing the sliding rod, the communication plate 102 can be limited to prevent the communication plate 102 from separating from the communication frame 101. A second spring is connected to the inner wall of the communication frame 101, and the second spring is connected to the sealing plate 104. By providing the second spring, the sealing plate 104 can be pulled to reset. The movement of the sealing plate 104 can drive the movement of the communication plate 102 through the connecting plate 103, thereby completing the overall reset of the internal structure of the sealing assembly 10. The sealing plate 104 is slidably connected to a limiting rod, and the limiting rod is fixedly connected to the communication frame 101. The limiting rod passes through the hole in the center of the second spring. By providing the limiting rod, the sealing plate 104 can be limited to reduce the possibility of displacement during the movement of the sealing plate 104.

[0028] Working principle: When the sample rod of the photographic material needs to be tested, the sample rod is placed at the opening of the measuring tube 3 and in contact with the quartz rod inside the measuring tube 3. Then, the furnace chamber 2 is moved. During the movement of the furnace chamber 2, the push plate 11 will move. During the movement of the push plate 11, it will come into contact with the transformation plate 12 and push the transformation plate 12 to rotate. The rotation of the transformation plate 12 will push the substrate 4 to move towards the furnace chamber 2. The movement of the substrate 4 will drive the sliding tube 5 to move. The movement of the sliding tube 5 will drive the limiting ring 6 to move. The movement of the limiting ring 6 will drive... The limiting block 7 performs the same movement. Since the rotating rod 8 at the bottom of the limiting block 7 is embedded in the guide groove of the measuring tube 3, when the limiting ring 6 drives the limiting block 7 to the bending position of the guide groove of the measuring tube 3, the limiting block 7 will move towards the sample rod under the action of the rotating rod 8 and the guide groove. Since the limiting block 7 is curved on the side of the sample rod, the two sets of limiting blocks 7 will calibrate the position of the sample rod during the process of fitting the sample rod, so that the axis of the sample rod coincides with the axis of the quartz rod, reducing the error generated during the measurement of the sample rod.

[0029] Secondly, during the exercise, the compensation frame 93 will be inserted into the transmission frame 101 on the outer wall of the furnace 2. After the compensation frame 93 is attached to the transmission plate 102, it will push the transmission plate 102 to move. Since the transmission plate 102 is rotatably connected to the connecting plate 103, and the other side of the connecting plate 103 is rotatably connected to the sealing plate 104, the transmission plate 102 will drive the sealing plate 104 to attach to the sealing gasket on the outside of the compensation frame 93 during the movement of the transmission plate 102 towards the inside of the transmission frame 101. The sealing gasket is pressed and deformed by the four sets of sealing plates 104. The opening of the furnace 2 is sealed by the four sets of sealing plates 104 and the compensation frame 93, reducing the heat exchange between the air inside the furnace 2 and the external environment. Finally, during the movement of the compensation frame 93, the transmitting rod 92 will move. Since the spherical protrusion inside the sliding sleeve 91 is embedded in the spiral groove of the transmitting rod 92, the transmitting rod 92 will rotate under the influence of the spiral groove and the spherical protrusion. The rotation of the transmitting rod 92 will drive the gear ring 97 to rotate. During the rotation of the gear ring 97, the rack will mesh with the rack of the ratchet 96. A portion of the rack of the gear ring 97 will drive the ratchet 96 to rotate slightly. The rotation of the ratchet 96 will drive the threaded rod 94 to rotate. Since the threaded rod 94 is threadedly connected to the sliding plate 95, and the sliding plate 95 is slidably connected to the compensation frame 93, the rotation of the threaded rod 94 will drive the sliding plate 95 to rotate slightly. The horizontal movement of the sliding plate 95 compresses the sealing gasket, causing it to deform and compensating for the wear caused by friction between the sealing gasket and the sealing plate 104. When the base plate 4 is reset by the first spring, the base plate 4 will drive the compensation frame 93 to move towards the measuring tube 3. The movement of the compensation frame 93 will drive the transmission rod 92 to be inserted into the sliding sleeve 91. During the insertion process, the transmission rod 92 will rotate in the opposite direction. The reverse rotation of the transmission rod 92 will drive the toothed ring 97 to rotate in the opposite direction. During the reverse rotation of the toothed ring 97 and its engagement with the ratchet 96, the latch on the inner side of the ratchet 96 will rotate, thus preventing the outer wheel of the ratchet 96 from driving the inner wheel to rotate, thereby avoiding the reset of the sliding plate 95.

[0030] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automatic detection device for phase change materials used in motors, comprising a thermal expansion meter body (1), characterized in that: A furnace chamber (2) is installed on the slide rail above the main body (1) of the thermal expansion meter. A measuring tube (3) is connected through the mounting plate above the main body (1). A base plate (4) is sleeved on the measuring tube (3). A sliding tube (5) is connected to the base plate (4) on one side of the furnace chamber (2). A limit ring (6) is connected to the other side of the sliding tube (5) connected to the base plate (4). A limit block (7) is slidably connected inside the limit ring (6). A rotating rod (8) is rotatably connected to the bottom of the limit block (7). A guide groove is opened on the frame of the measuring tube (3), and the rotating rod (8) is embedded in the guide groove of the frame of the measuring tube (3). A push plate (11) is connected to the furnace chamber (2) on one side of the measuring tube (3). A conversion plate (12) is rotatably connected to the mounting plate above the main body (1) of the thermal expansion meter on one side of the furnace chamber (2) through a connecting frame. Compensation component (9) is disposed on the outside of sliding tube (5); A sealing assembly (10) is provided at the opening on the outer wall of the furnace (2).

2. An automatic detection device for phase change materials used in motors according to claim 1, characterized in that: The compensation assembly (9) has a sliding sleeve (91) connected to one side of the mounting plate of the measuring tube (3). A transmission rod (92) is provided inside the sliding sleeve (91), and the transmission rod (92) has a spiral groove. A spherical protrusion is provided inside the sliding sleeve (91), and the spherical protrusion is embedded in the spiral groove of the transmission rod (92). A compensation frame (93) is sleeved on the outer wall of the sliding tube (5), and the transmission rod (92) is rotatably connected to the compensation frame (93). A threaded rod (94) is rotatably connected inside the compensation frame (93). The threaded rod (94) is threadedly connected to a sliding plate (95), and the sliding plate (95) is slidably connected to the compensation frame (93). A toothed ring (97) is sleeved on the transmission rod (92), and a ratchet (96) is sleeved on the threaded rod (94). The rack of the ratchet (96) and the rack of the toothed ring (97) are the same size. A sealing gasket is provided on the outside of the compensation frame (93).

3. An automatic detection device for phase change materials used in motors according to claim 1, characterized in that: The sealing assembly (10) has a transmission frame (101) connected to the outer wall of the furnace (2), a transmission plate (102) is slidably connected inside the transmission frame (101), a connecting plate (103) is rotatably connected to the side of the measuring tube (3) of the transmission plate (102), and a sealing plate (104) is rotatably connected to the other side of the connecting plate (103).

4. An automatic detection device for phase change materials used in motors according to claim 1, characterized in that: The substrate (4) is connected to a first spring on one side of the measuring tube (3), and the first spring is connected to the mounting plate above the thermal expansion instrument body (1).

5. An automatic detection device for phase change materials used in motors according to claim 4, characterized in that: The substrate (4) is connected to a guide rod on the side of the first spring, and the guide rod passes through the hole formed in the center of the first spring and is slidably connected to the mounting plate of the thermal expansion instrument body (1).

6. An automatic detection device for phase change materials used in motors according to claim 1, characterized in that: The push plate (11) is rotatably connected to the conversion plate (12) and the push roller is provided on the surface of the push roller.

7. An automatic detection device for phase change materials used in motors according to claim 3, characterized in that: A sliding rod is fixedly connected to the inside of the communication frame (101), and an anti-detachment disc is fixedly connected to the other end of the sliding rod. The sliding rod is slidably connected to the communication plate (102).

8. An automatic detection device for phase change materials used in motors according to claim 3, characterized in that: A second spring is connected to the inner wall of the communication frame (101), and the second spring is connected to the sealing plate (104).

9. An automatic detection device for phase change materials used in motors according to claim 8, characterized in that: The sealing plate (104) is slidably connected to the limiting rod, and the limiting rod is fixedly connected to the communication frame (101), and the limiting rod passes through the hole in the center of the second spring.

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