A color-stability measuring device with high heat dissipation

Abstract

This invention discloses a high-efficiency heat dissipation color stability measurement device, belonging to the field of color stability measurement technology. It includes a chassis with a detection chamber inside. A xenon lamp is installed on the top inner side of the detection chamber, and a constant-temperature liquid bath assembly is installed on the bottom inner side of the detection chamber. The constant-temperature liquid bath assembly includes a liquid bath tank. A clamp for holding the sample is installed at the bottom of the liquid bath tank. A water outlet branch pipe is installed on the lower inner side of the liquid bath tank, with a water outlet hole on its upper side. Multiple sets of water outlet branch pipes are evenly spaced along the transverse side of the liquid bath tank and connected to a main water outlet pipe. The main water outlet pipe is connected to an inlet main water outlet pipe via a vertical pipe. A condensation device is installed on the outside of the vertical pipe, and a water pump is also installed on the vertical pipe. An inlet branch pipe is installed on the upper inner side of the liquid bath tank. This invention can effectively dissipate heat from the water surface, improving the accuracy and repeatability of the detection results.

Description

Technical Field

[0001] This invention belongs to the field of color stability measurement technology, and specifically relates to a color stability measurement device with high-efficiency heat dissipation. Background Technology

[0002] Currently, in the field of color stability testing of dental materials, using xenon lamps as a simulated sunlight source has become the mainstream technology in the industry. Xenon lamps are widely used in accelerated aging tests and color stability assessments because their spectral distribution is highly similar to natural light, especially exhibiting good continuity in the ultraviolet to visible light band. According to the standard requirements for color stability testing of dental materials, the water bath temperature must be strictly maintained within the range of (37 ± 5) ℃ during the test to simulate the oral cavity environment temperature and eliminate the interference of temperature factors on the color change of the material. However, in actual testing, the illuminance of xenon lamps can reach (150,000 ± 15,000) lx. The sample is usually immersed in the water bath, with the water surface located at a certain distance above the sample. After the high-illuminance beam passes through the air layer and irradiates the water surface, most of the light energy is converted into heat energy, causing a sharp rise in the water surface temperature, which affects the normal measurement of color stability. Summary of the Invention

[0003] In view of this, the purpose of the present invention is to provide a color stability measuring device with high efficiency heat dissipation, which can effectively dissipate heat from the water surface temperature and improve the accuracy and repeatability of the test results.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] This invention discloses a high-efficiency heat dissipation color stability measuring device, comprising a chassis, an internal detection chamber, a xenon lamp mounted on the top inner side of the detection chamber, and a constant-temperature liquid bath assembly mounted on the bottom inner side of the detection chamber. The constant-temperature liquid bath assembly includes a liquid bath tank, a clamp for holding the sample mounted on the bottom of the liquid bath tank, a water outlet branch pipe mounted on the lower inner side of the liquid bath tank, a water outlet hole on the upper side of the water outlet branch pipe, multiple sets of water outlet branch pipes evenly spaced along the transverse side of the liquid bath tank, multiple sets of water outlet branch pipes connected to a main water outlet pipe, the main water outlet pipe connected to a main water inlet pipe via a vertical pipe, a condensation device mounted on the outer side of the vertical pipe, and a water pump mounted on the vertical pipe; a water inlet branch pipe mounted on the upper inner side of the liquid bath tank, a water inlet hole on the upper side of the water inlet branch pipe, multiple sets of water inlet branch pipes evenly spaced along the transverse side of the liquid bath tank, multiple sets of water inlet branch pipes connected to a main water inlet pipe, the position of the water inlet branch pipes corresponding to the position of the water surface inside the liquid bath tank.

[0006] Furthermore, the main outlet pipe is connected to the first rigid pipe through the first flexible hose. The first rigid pipe extends out of the liquid bath and is fixedly connected to the main outlet pipe. The main inlet pipe is connected to the second rigid pipe through the second flexible hose. The second rigid pipe extends out of the liquid bath and is fixedly connected to the main inlet pipe. The branch outlet pipe is connected to a lateral displacement component. The branch outlet pipe corresponds one-to-one with the branch inlet pipe. The branch outlet pipe is connected to the branch inlet pipe through a support rod.

[0007] Furthermore, the lower and upper inner sides of the liquid bath tank are respectively fixedly connected to a first support plate and a second support plate. The lateral displacement assembly includes a first support connected to the outlet branch pipe. A first groove is provided on the first support plate to slide with the first support. A second support is connected to the inlet branch pipe. A second groove is provided on the second support plate to slide with the second support. The lateral displacement assembly also includes a screw, a motor, a bearing seat, and a support spring. One end of the screw is connected to the motor, and the other end is threaded to a third support. The third support slides with the first groove. The outer end of the screw is rotatably supported by the bearing seat. Support springs are connected between the third support and the first support, and between two adjacent first supports.

[0008] Furthermore, the length and stiffness of each support spring are exactly the same, and the projection of the inlet branch pipe in the vertical direction is located in the middle between two adjacent outlet main pipes.

[0009] Furthermore, the liquid bath includes an upper chamber, an inner chamber, and a lower chamber. The inner chamber is fixedly installed inside the upper chamber. The lower end of the inner chamber extends out of the upper chamber and slides and seals with the inner wall of the lower chamber. A hydraulic cylinder is fixed on the outer side of the lower chamber, and the output end of the hydraulic cylinder is connected to the upper chamber.

[0010] Furthermore, the vertical pipe includes an inner pipe and an outer pipe. The upper end of the outer pipe is connected to the main inlet pipe, and the lower end of the outer pipe extends vertically downward. The lower end of the inner pipe is connected to the main outlet pipe, and the upper end of the inner pipe is slidably and sealingly installed inside the outer pipe.

[0011] Furthermore, the support rod includes an inner rod and an outer rod. One end of the inner rod is connected to the first support or the second support, and the other end of the inner rod is slidably disposed inside the outer rod. The outer rod is connected to the corresponding second support or the first support.

[0012] Furthermore, a water supply pipe is also connected to the outlet branch pipe, and the water supply pipe is connected to a water supply tank via a water pump.

[0013] The beneficial effects of this invention are as follows:

[0014] This invention discloses a high-efficiency heat dissipation color stability measuring device. By setting up two layers of water outlet branch pipes and water inlet branch pipes, the water inlet branch pipes can absorb the water with a high temperature on the water surface, condense it through a condenser, and then discharge it from the bottom through the water outlet branch pipes, which plays a cooling role. The above method can effectively dissipate heat from the water surface temperature and improve the accuracy and repeatability of the test results. Attached Figure Description

[0015] To make the objectives, technical solutions, and beneficial effects of this invention clearer, the following figures are provided for illustration:

[0016] Figure 1 This is a schematic diagram of the structure of the present invention;

[0017] Figure 2 This is a schematic diagram of the structure of a constant temperature liquid bath assembly;

[0018] Figure 3 This is a top view of the thermostatic liquid bath assembly;

[0019] Figure 4 This is a schematic diagram showing the layout of the outlet branch pipe and the inlet branch pipe;

[0020] Figure 5 This is a schematic diagram of the outlet branch pipe;

[0021] Figure 6 This is a schematic diagram of the water inlet branch pipe.

[0022] The following components are labeled in the attached diagram: 1. Chassis; 2. Detection Chamber; 3. Xenon Lamp; 4. Liquid Bath; 5. Fixture; 6. Outlet Branch Pipe; 7. Outlet Hole; 8. Main Outlet Pipe; 9. Vertical Pipe; 10. Main Inlet Pipe; 11. Condensation Device; 12. Inlet Branch Pipe; 13. Inlet Hole; 14. First Flexible Hose; 15. First Rigid Pipe; 16. Second Flexible Hose; 17. Second Rigid Pipe; 18. Support Rod; 19. First Support Plate; 20. Second Support Plate; 21. First Support; 22. First Slide Groove; 23. Second Support; 24. Second Slide Groove; 25. Screw; 26. Motor; 27. Bearing Seat; 28. Support Spring; 29. ​​Third Support; 30. Upper Housing; 31. Inner Housing; 32. Lower Housing; 33. Hydraulic Cylinder; 34. Inner Pipe; 35. Outer Pipe; 36. Inner Rod; 37. Outer Rod; 38. Water Supply Pipe. Detailed Implementation

[0023] like Figures 1-6 As shown, this invention discloses a high-efficiency heat dissipation color stability measuring device, including a chassis 1. A detection chamber 2 is formed inside the chassis 1. A xenon lamp 3 is installed on the top inner side of the detection chamber 2. The xenon lamp 3 adopts an existing structure. By controlling the current of the xenon lamp 3, the illuminance of the xenon lamp 3 can be controlled to meet practical needs. In some other embodiments, a cooling device can be installed on the outside of the xenon lamp 3 or inside the detection chamber 2 to control the temperature.

[0024] Specifically, a constant temperature liquid bath assembly is installed on the inner bottom of the detection chamber 2 of the present invention. The constant temperature liquid bath assembly includes a liquid bath tank 4, which is square in shape and used to hold water. A clamp 5 for holding the sample is installed at the bottom of the liquid bath tank 4. Multiple clamps 5 can be arranged in parallel in the longitudinal direction to facilitate the installation of multiple samples.

[0025] A water outlet branch pipe 6 is installed on the lower inner side of the liquid bath tank 4. A water outlet hole 7 is opened on the upper side of the water outlet branch pipe 6, allowing water to flow upwards. This water flow process accelerates water circulation and reduces temperature gradients. Multiple sets of water outlet branch pipes 6 are evenly spaced along the transverse side of the liquid bath tank 4 and are connected to a main water outlet pipe 8. The main water outlet pipe 8 is connected to a main water inlet pipe 10 via a vertical pipe 9. A condenser device 11 is installed on the outer side of the vertical pipe 9. The condenser device 11 uses existing condenser components to cool the exchanged water, as those skilled in the art will understand. A water pump is also installed on the vertical pipe 9 to provide power for the water flow. A water inlet branch pipe 12 is installed on the upper inner side of the liquid bath tank 4. A water inlet hole 13 is opened on the upper side of the water inlet branch pipe 12. Multiple sets of water inlet branch pipes 12 are evenly spaced along the transverse side of the liquid bath tank 4 and are connected to the main water inlet pipe 10. The position of the water inlet branch pipe 12 corresponds to the position of the water surface inside the liquid bath tank 4.

[0026] This invention provides a cooling effect by setting up an outlet branch pipe 6 and an inlet branch pipe 12 located at the lower and upper layers, respectively. The inlet branch pipe 12 can absorb water with a higher temperature on the water surface, which is then condensed by the condenser 11 and discharged from the bottom through the outlet branch pipe 6. This method can effectively dissipate heat from the water surface and improve the accuracy and repeatability of the test results.

[0027] In this embodiment, the main water outlet pipe 8 is connected to the first rigid pipe 15 through the first flexible hose 14. The first flexible hose 14 is made of rubber material and can be stretched. After being stretched, it will not affect the normal flow of water. The first rigid pipe 15 extends out of the liquid bath tank 4 and is fixedly connected to the main water outlet pipe 8 so that it can be properly shielded outside the liquid bath tank 4, which can facilitate the cooling of water.

[0028] Similarly, the main inlet pipe 10 is connected to the second rigid pipe 17 via the second flexible hose 16. The second rigid pipe 17 extends out of the liquid bath tank 4 and is fixedly connected to the main inlet pipe 10. The outlet branch pipe 6 is connected to a lateral displacement assembly. The outlet branch pipe 6 corresponds one-to-one with the inlet branch pipe 12, and the outlet branch pipe 6 is connected to the inlet branch pipe 12 via a support rod 18. When the illuminance in the direct illumination area of ​​the xenon lamp 3 is too high, the lateral displacement assembly can be used to gather the outlet branch pipes 6 together to increase density and enhance local cooling. When the illuminance is low, they can be dispersed to reduce unnecessary temperature fluctuations and facilitate observation during testing.

[0029] In this embodiment, the lower and upper parts of the inner side of the liquid bath tank 4 are respectively fixedly connected to a first support plate 19 and a second support plate 20. The first support plate 19 and the second support plate 20 are arranged in a transverse direction. The transverse displacement component includes a first support 21 connected to the water outlet branch pipe 6. A first sliding groove 22 is provided on the first support plate 19 to slide with the first support 21. The first sliding groove 22 and the second sliding groove 24 are both T-shaped grooves that extend in a transverse direction.

[0030] Similarly, a second support 23 is connected to the inlet branch pipe 12. A second groove 24 is provided on the second support plate 20 to slide and engage with the second support 23. The lateral displacement assembly also includes a screw 25, a motor 26, a bearing seat 27, and a support spring 28. One end of the screw 25 is connected to the motor 26, and the other end is threaded to a third support 29. The third support 29 slides and engages with the first groove 22. The outer end of the screw 25 is rotatably supported by the bearing seat 27. Support springs 28 are connected between the third support 29 and the first support 21, and between two adjacent first supports 21. The motor 26 drives the screw 25 to rotate, and the screw 25 can drive the third support 29 to move laterally, which can stretch or compress the spring, thereby adjusting the spacing between the groups of outlet branch pipes 6 or inlet branch pipes 12.

[0031] In this embodiment, the length and stiffness of each support spring 28 are exactly the same. The projection of the water inlet branch pipe 12 in the vertical direction is located in the middle between two adjacent water outlet main pipes 8. By adopting this method, the water outlet and water inlet positions can be staggered in the lateral direction, which can increase the disturbance effect of the water flow.

[0032] In this embodiment, the liquid bath tank 4 includes an upper tank 30, an inner tank 31, and a lower tank 32. A first support plate 19 and a second support plate 20 are respectively fixedly installed on the inner walls of the lower tank 32 and the upper tank 30. The inner tank 31 is fixedly installed on the inner side of the upper tank 30. The lower end of the inner tank 31 extends out of the upper tank 30 and slides in a sealing fit with the inner wall of the lower tank 32. A hydraulic cylinder 33 is fixed to the outer side of the lower tank 32, and the output end of the hydraulic cylinder 33 is connected to the upper tank 30. This design allows the upper tank 30 to move vertically, changing the height of the upper inlet branch pipe 12 to adapt to different water depths.

[0033] In this embodiment, the vertical pipe 9 includes an inner pipe 34 and an outer pipe 35. The upper end of the outer pipe 35 is connected to the main water inlet pipe 10, and the lower end of the outer pipe 35 extends vertically downward. The lower end of the inner pipe 34 is connected to the main water outlet pipe 8, and the upper end of the inner pipe 34 is slidably and sealingly installed inside the outer pipe 35. It is understood that the above method is only one embodiment in which the vertical pipe 9 can be extended and retracted. The specific structure or length can be set as needed so that the condensing device 11 can fully condense.

[0034] In this embodiment, the support rod 18 includes an inner rod 36 and an outer rod 37. One end of the inner rod 36 is connected to the first support 21 or the second support 23, and the other end of the inner rod 36 is slidably disposed inside the outer rod 37. The outer rod 37 is connected to the corresponding second support 23 or the first support 21. This can change the structure of the support rod 18, allowing adjacent support rods 18 to make room for each other in the lateral direction.

[0035] In this embodiment, a water supply pipe 38 is connected to the water outlet branch pipe 6. The water supply pipe 38 is connected to a water supply tank via a water pump. Specifically, a liquid level sensor can be installed inside the liquid bath tank 4 to replenish the water inside the liquid bath tank 4 in a timely manner.

Claims

1. A color stability measuring device with high heat dissipation, characterized in that: The system includes a chassis, inside which is formed a detection chamber. A xenon lamp is installed on the top inner side of the detection chamber, and a constant-temperature liquid bath assembly is installed on the bottom inner side of the detection chamber. The constant-temperature liquid bath assembly includes a liquid bath tank, and a clamp for holding the sample is installed at the bottom of the liquid bath tank. A water outlet branch pipe is installed on the lower inner side of the liquid bath tank, and a water outlet hole is opened on the upper side of the water outlet branch pipe. Multiple sets of water outlet branch pipes are evenly spaced along the transverse side of the liquid bath tank and are connected to the main water outlet pipe. The main water outlet pipe is connected to the main water inlet pipe through a vertical pipe. A condensation device is installed on the outside of the vertical pipe, and a water pump is also installed on the vertical pipe. A water inlet branch pipe is installed on the upper inner side of the liquid bath tank, and a water inlet hole is opened on the upper side of the water inlet branch pipe. Multiple sets of water inlet branch pipes are evenly spaced along the transverse side of the liquid bath tank and are connected to the main water inlet pipe. The position of the water inlet branch pipe corresponds to the position of the water surface inside the liquid bath tank.

2. The color stability measuring device with high-efficiency heat dissipation according to claim 1, characterized in that: The main outlet pipe is connected to the first rigid pipe through the first flexible hose. The first rigid pipe extends out of the liquid bath and is fixedly connected to the main outlet pipe. The main inlet pipe is connected to the second rigid pipe through the second flexible hose. The second rigid pipe extends out of the liquid bath and is fixedly connected to the main inlet pipe. The branch outlet pipe is connected to a lateral displacement component. The branch outlet pipe corresponds one-to-one with the branch inlet pipe. The branch outlet pipe is connected to the branch inlet pipe through a support rod.

3. The color stability measuring device with high-efficiency heat dissipation according to claim 2, characterized in that: The lower and upper parts of the inner side of the liquid bath tank are respectively fixedly connected to a first support plate and a second support plate. The lateral displacement assembly includes a first support connected to the outlet branch pipe. A first groove is opened on the first support plate to slide with the first support plate. A second support is connected to the inlet branch pipe. A second groove is opened on the second support plate to slide with the second support plate. The lateral displacement assembly also includes a screw, a motor, a bearing seat, and a support spring. One end of the screw is connected to the motor, and the other end is threaded to a third support. The third support slides with the first groove. The outer end of the screw is rotatably supported by the bearing seat. Support springs are connected between the third support and the first support, and between two adjacent first supports.

4. The color stability measuring device with high-efficiency heat dissipation according to claim 3, characterized in that: The length and stiffness of each support spring are exactly the same, and the projection of the inlet branch pipe in the vertical direction is located in the middle between two adjacent outlet main pipes.

5. The color stability measuring device with high-efficiency heat dissipation according to claim 4, characterized in that: The liquid bath includes an upper chamber, an inner chamber, and a lower chamber. The inner chamber is fixedly installed inside the upper chamber. The lower end of the inner chamber extends out of the upper chamber and slides and seals with the inner wall of the lower chamber. A hydraulic cylinder is fixed on the outer side of the lower chamber, and the output end of the hydraulic cylinder is connected to the upper chamber.

6. The color stability measuring device with high-efficiency heat dissipation according to claim 5, characterized in that: The vertical pipe includes an inner pipe and an outer pipe. The upper end of the outer pipe is connected to the main inlet pipe, and the lower end of the outer pipe extends vertically downward. The lower end of the inner pipe is connected to the main outlet pipe, and the upper end of the inner pipe is slidably and sealingly installed inside the outer pipe.

7. The color stability measuring device with high-efficiency heat dissipation according to claim 6, characterized in that: The support rod includes an inner rod and an outer rod. One end of the inner rod is connected to the first support or the second support, and the other end of the inner rod is slidably disposed inside the outer rod. The outer rod is connected to the corresponding second support or the first support.

8. The color stability measuring device with high-efficiency heat dissipation according to claim 7, characterized in that: A water supply pipe is connected to the outlet branch pipe, and the water supply pipe is connected to the water supply tank through a water pump.

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