Temperature control assembly for confocal microscopic Raman spectrometer

Abstract

The utility model provides a temperature control assembly used for a confocal microscopic Raman spectrometer, and relates to the confocal microscopic Raman spectrometer technology field, the temperature control assembly comprises a slide placing table and a circulating device, the slide placing table is internally provided with a water storage cavity, the water storage cavity is internally provided with a heating device, and the heating device is internally provided with a temperature control device. The heating device heats the liquid in the water storage cavity, the temperature of the liquid is conducted to the outer surface of the slide placing table, the circulating device is communicated with the water storage cavity, and the circulating device drives the liquid in the water storage cavity to circulate. During use, the water storage cavity is formed in the slide placement table, liquid is injected into the water storage cavity, the liquid is heated through the heating device arranged in the water storage cavity, and the liquid is circulated through the circulating device, so that the temperature is kept relatively constant, and heat of the liquid is conducted to a material on a slide through the slide placement table; the effects of enabling the temperatures of the sample materials to be similar and improving the accuracy of observation data are achieved.

Description

Technical Field

[0001] This utility model relates to the field of confocal micro Raman spectrometer technology, and in particular to a temperature control component for a confocal micro Raman spectrometer. Background Technology

[0002] The confocal Raman microscopy system combines a research-grade microscope with a high-performance Raman spectrometer, and is applied to research topics in materials surfaces, interfaces, liquid crystals, minerals, biomedicine, and environmental protection. It can test solids, liquids, and gases, including organic compounds, inorganic compounds, polymers, biomembranes, and various materials (such as ceramics, diamond, and nanomaterials). The system is applicable to disciplines such as physics, chemistry, materials science, biology, pharmaceuticals, biochemistry, medicine, forensic science, criminal investigation, geology, and environmental science.

[0003] When using a confocal micro Raman spectrometer, the indoor temperature range in the laboratory is not a fixed value. This will cause the data obtained by the test to change depending on the indoor temperature, which will cause the data results of the same batch of samples to fluctuate due to temperature differences.

[0004] Therefore, this application proposes a temperature control component for a confocal micro Raman spectrometer to regulate the temperature, thereby keeping the temperature of samples in the same batch similar and improving the accuracy of the data. Utility Model Content

[0005] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a temperature control component for a confocal micro Raman spectrometer, which solves the problem of inaccurate data results caused by different indoor temperatures in the prior art.

[0006] To achieve the above and other related objectives, this utility model provides a temperature control component for a confocal micro Raman spectrometer, including a slide stage and a circulation device;

[0007] The slide placement stage is provided with a water storage cavity inside, and a heating device is installed inside the water storage cavity to heat the liquid inside the water storage cavity.

[0008] The circulation device is in fluid communication with the water storage cavity, and the circulation device drives the liquid inside the water storage cavity to circulate, thereby controlling the temperature of the liquid inside the water storage cavity.

[0009] Preferably, the circulation device includes a water tank, a peristaltic pump is installed inside the water tank, and liquid is installed inside the water tank, with the peristaltic pump driving the liquid to circulate.

[0010] Preferably, a water supply pipe is provided between the slide placement stage and the circulation device. The water supply pipe is divided into an inlet pipe and an outlet pipe. One end of the inlet pipe and one end of the outlet pipe are connected to the interior of the water storage cavity. The other end of the inlet pipe is connected to the outlet of the peristaltic pump, and the other end of the outlet pipe is connected to the interior of the water storage tank.

[0011] Preferably, a pressure valve is provided at the connection between the water outlet pipe and the glass slide placement stage, and the pressure valve is located inside the water storage cavity;

[0012] The connection between the water supply pipe and the water storage cavity is located above the heating device.

[0013] Preferably, the heating device includes a metal support plate, on which a heating tube is mounted, and the wire of the heating tube passes through the outer surface of the slide placement stage and leads to the outside.

[0014] Preferably, the heating tubes are arranged in a snake-like shape at the bottom of the metal support plate, and a temperature sensor is also installed at the top of the metal support plate, the temperature sensor being in contact with the liquid.

[0015] Preferably, a heat insulation block is provided between the temperature sensor and the metal support plate, and the heat insulation block is made of plastic.

[0016] A heat insulation groove is provided between the gaps at the bends of the heating tubes at the bottom of the metal support plate. The data line of the temperature sensor passes through the heat insulation block to the inside of the heat insulation groove, and the data line is led from the inside of the heat insulation groove to the outside of the glass slide placement stage.

[0017] The circuits of the temperature sensor and the heating element are combined into a single sheathed cable, which is then introduced into the interior of the water tank and connected to an external control device along with the circuit of the peristaltic pump.

[0018] Another aspect of this application provides a confocal micro Raman spectrometer, including a confocal micro Raman spectrometer body and a temperature control component as described above, wherein the temperature control component is disposed on the confocal micro Raman spectrometer body.

[0019] As described above, the temperature control component for a confocal micro Raman spectrometer of this invention has the following beneficial effects: By setting a water storage cavity inside the slide stage and injecting liquid into the water storage cavity, the liquid is heated by a heating device inside the water storage cavity and circulated by a circulation device, so that the temperature is kept relatively constant. The heat of the liquid is conducted to the material on the slide through the slide stage, thereby achieving the effect of making the sample material temperature similar and improving the accuracy of the observation data.

[0020] Meanwhile, by using a peristaltic pump for liquid transfer, the liquid circulation volume can be precisely controlled. A heat insulation block is installed between the metal support plate and the temperature sensor to prevent direct contact between the temperature sensor and the metal support plate. When the metal support plate conducts heat from the heating tube to heat the liquid, the temperature sensor can directly monitor the water temperature instead of the temperature of the metal support plate, thus improving the accuracy of temperature control.

[0021] Therefore, this utility model effectively overcomes the various shortcomings of the prior art and has high industrial application value. Attached Figure Description

[0022] Figure 1 The diagram shown is a schematic representation of the structure of this utility model.

[0023] Figure 2 The image shown is a cross-sectional view of the slide placement stage of this utility model.

[0024] Figure 3 This utility model is shown. Figure 2 Enlarged schematic diagram of the structure at point A in the middle.

[0025] Figure 4 The diagram shows the structural distribution of the water pipe and power cord of this utility model.

[0026] Figure 5 The diagram shown is a structural schematic of the top of the heating device of this utility model.

[0027] Figure 6 The diagram shown is a structural schematic of the bottom of the heating device of this utility model.

[0028] Figure 7 The diagram shown is a schematic representation of the internal structure of the water storage tank of this utility model.

[0029] Component designation explanation

[0030] 1. Confocal Raman Microscope Body; 2. Slide Stage; 201. Water Storage Cavity; 3. Circulation Device; 301. Water Tank; 302. Peristaltic Pump; 4. Heating Device; 401. Metal Support Plate; 402. Heat Insulation Block; 403. Temperature Sensor; 404. Heating Tube; 405. Heat Insulation Cable Tray; 5. Water Supply Pipe; 501. Pressure Valve; 6. Integrated Sheathed Cable. Detailed Implementation

[0031] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0032] Please see Figures 1 to 7It should be understood that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and are not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0033] like Figures 1-7 As shown, this utility model provides a temperature control component for a confocal micro Raman spectrometer, including a confocal micro Raman spectrometer body 1, on which a glass slide stage 2 is installed to support the sample. When performing material analysis, the glass slide is placed on top of the glass slide stage 2 for observation.

[0034] The slide placement stage 2 has a water storage cavity 201 inside for injecting liquid, preferably pure water. The liquid has space for vapor expansion inside the water storage cavity 201. A heating device 4 is installed inside the water storage cavity 201. The heating device 4 heats the liquid inside the water storage cavity 201. The temperature of the liquid is conducted to the outer surface of the slide placement stage 2, and then the temperature is transferred to the glass slide carrying the material, so that the temperature of the material on the glass slide is kept similar.

[0035] A circulation device 3 is installed on the side of the confocal micro Raman spectrometer body 1. The circulation device 3 is filled with a large amount of pure water and is interconnected with the water storage cavity 201. The circulation device 3 drives the circulation of the liquid inside the water storage cavity 201. The specific temperature control principle of the liquid inside the water storage cavity 201 is as follows: When the temperature of the liquid heated by the heating device 4 is too high, the heating device 4 stops heating. At the same time, the circulation device 3 injects low-temperature liquid into the water storage cavity 201 to change the temperature of the liquid inside the water storage cavity 201. When the temperature inside the water storage cavity 201 is low, the circulation device 3 stops working, and the heating device 4 starts heating the liquid. Through the above circulation, the liquid inside the water storage cavity 201 is kept at a relatively constant temperature. Then, the temperature is transferred to the material on the glass slide through the glass slide stage 2, so that the temperature of the material is also relatively consistent and stable.

[0036] In some embodiments, the circulation device 3 includes a water storage tank 301, which is used to store a large amount of liquid. The water storage tank 301 is made of metal to conduct heat and dissipate the heat of the liquid inside the water storage tank 301. A peristaltic pump 302 is installed inside the water storage tank 301 to drive the liquid circulation. Compared with ordinary pumps, the peristaltic pump 302 has the effect of controllable delivery volume. Therefore, by using the peristaltic pump 302 to deliver liquid, the delivery volume of liquid can be precisely controlled, thereby precisely controlling the cooling range of the liquid inside the water storage cavity 201.

[0037] In some embodiments, a water supply pipe 5 is provided between the slide placement stage 2 and the circulation device 3. The liquid is transported through the water supply pipe 5, allowing the liquid in the circulation device 3 to enter the water storage cavity 201, thereby quickly cooling the liquid in the water storage cavity 201. The water supply pipe 5 is divided into an inlet pipe and an outlet pipe. One end of the inlet pipe and one end of the outlet pipe are connected to the inside of the water storage cavity 201. The other end of the inlet pipe is connected to the outlet of the peristaltic pump 302, and the other end of the outlet pipe is connected to the inside of the water storage tank 301. As the peristaltic pump 302 operates, the liquid in the water storage tank 301 enters through the inlet of the peristaltic pump 302, and then flows out quantitatively from the outlet of the peristaltic pump 302 and enters the inside of the water storage cavity 201 through the inlet pipe. After the liquid in the water storage cavity 201 is increased, it circulates from the outlet pipe back to the inside of the water storage tank 301.

[0038] In some embodiments, a pressure valve 501 is provided at the connection between the water outlet pipe and the slide placement stage 2. The pressure valve 501 is located inside the water storage cavity 201. When the peristaltic pump 302 is not working, the hydraulic pressure inside the water storage cavity 201 remains stable, and the pressure valve 501 is normally closed, so that the liquid inside the water storage cavity 201 is independent of the liquid in the water storage tank 301. When the peristaltic pump 302 is working, new liquid is filled into the water storage cavity 201, thereby increasing the liquid pressure inside the water storage cavity 201 and pressurizing the pressure valve 501, so that the liquid inside the water storage cavity 201 and the liquid in the water storage tank 301 are interconnected to form a circulation for heat exchange, thereby changing the temperature of the liquid inside the water storage cavity 201.

[0039] The connection between the water supply pipe 5 and the water storage cavity 201 is located above the heating device 4. Thus, when the heating device 4 divides the interior of the water storage cavity 201 into two spaces, the liquid is only in the space above the heating device 4, which can effectively reduce the amount of liquid used, thereby increasing the speed at which the heating device 4 heats the liquid and improving the efficiency of temperature regulation.

[0040] In some embodiments, the heating device 4 includes a metal support plate 401, which is a heat-conducting metal plate. The metal support plate 401 divides the internal space of the water storage cavity 201 into two independent upper and lower spaces. A heating tube 404 is installed on the metal support plate 401 to heat the metal support plate 401. The heat is conducted to the liquid over a large area through the metal support plate 401, thereby improving the uniformity of the heated liquid. The wires of the heating tube 404 pass through the outer surface of the glass slide placement stage 2 and are led to the outside. They are powered by an external power supply. A power regulator is generally installed on the wires of the heating tube 404 to change the power consumption of the heating tube 404, thereby changing the heating temperature of the heating tube 404.

[0041] In some embodiments, the heating tubes 404 are arranged in a serpentine pattern at the bottom of the metal support plate 401, separating the heating tubes 404 from the liquid. Heat can only be conducted to the liquid through the metal support plate 401, improving the uniformity of liquid heating. This is because the thermal conductivity of liquid is lower than that of metal; if heating were done directly through the heating tubes 404, temperature differences would easily occur throughout the liquid. A temperature sensor 403 is also installed on the top of the metal support plate 401. The temperature sensor 403 is in contact with the liquid and monitors the liquid temperature. The data fed back by the temperature sensor 403 is used to determine whether the heating tubes 404 and the peristaltic pump 302 are operating.

[0042] In some embodiments, a heat insulation block 402 is provided between the temperature sensor 403 and the metal support plate 401. The heat insulation block 402 is made of plastic. The heat insulation block 402 isolates the metal support plate 401 and the temperature sensor 403, thereby preventing the temperature sensor 403 from directly contacting the metal support plate 401 and causing the temperature sensor 403 to monitor the temperature of the metal support plate 401 instead of the temperature of the liquid, thus improving the accuracy of temperature monitoring.

[0043] A heat insulation groove 405 is provided between the bends of the heating tube 404 at the bottom of the metal support plate 401. The data line of the temperature sensor 403 passes through the heat insulation block 402 to the inside of the heat insulation groove 405. The data line is led from the inside of the heat insulation groove 405 to the outside of the glass slide stage 2. The heat insulation groove 405 protects the data line of the temperature sensor 403 and isolates the high temperature of the heating tube 404 during operation, so as to minimize the damage of the temperature sensor 403 data line to the high temperature.

[0044] The wiring of temperature sensor 403 and heating tube 404 is combined into a single sheathed cable 6, which makes subsequent wiring and connection more convenient. The wiring of temperature sensor 403 and heating tube 404 is distinguished by color, and the single sheathed cable 6 is introduced into the interior of water tank 301 and connected to the external control device together with the wiring of peristaltic pump 302. The control device controls peristaltic pump 302 and heating tube 404 respectively according to the temperature data fed back by temperature sensor 403.

[0045] The specific usage process of this utility model is as follows:

[0046] The metal support plate 401 is heated by the heating tube 404, and the heat is conducted through the metal support plate 401 to the liquid in the water storage cavity 201, thereby changing the temperature of the slide placement stage 2 and making the temperature of the slide placed on the slide placement stage 2 reach the set temperature.

[0047] The temperature sensor 403 monitors the temperature of the liquid inside the water storage cavity 201 in real time. When the temperature inside the water storage cavity 201 exceeds a predetermined threshold, the heating element 404 stops heating, and the peristaltic pump 302 starts working to inject low-temperature liquid into the water storage cavity 201. The temperature is lowered by mixing the high-temperature liquid and the low-temperature liquid. When the temperature of the liquid inside the water storage cavity 201 is lower than the predetermined threshold, the peristaltic pump 302 stops working, and the heating element 404 starts heating. This cycle is repeated to maintain the temperature of the liquid inside the water storage cavity 201 within the predetermined temperature range.

[0048] When the internal temperature of the water storage cavity 201 remains relatively constant, the surface temperature of the slide placement stage 2 will also remain relatively constant, thus ensuring that the material temperature on the slide remains relatively consistent.

[0049] In summary, the temperature control component for a confocal micro Raman spectrometer of this invention maintains a relatively constant temperature by setting a water storage cavity 201 inside the slide stage 2, injecting liquid into the water storage cavity 201, heating the liquid through a heating device 4 inside the water storage cavity 201, and circulating the liquid through a circulation device 3. The heat from the liquid is conducted to the material on the slide through the slide stage 2, achieving the effect of making the sample material temperature similar and improving the accuracy of the observation data.

[0050] Meanwhile, this invention uses a peristaltic pump 302 for liquid transfer, which can accurately control the liquid circulation volume. A heat insulation block 402 is set between the metal support plate 401 and the temperature sensor 403 to isolate them, so that the temperature sensor 403 does not directly contact the metal support plate 401. When the metal support plate 401 conducts heat from the heating tube 404 to heat the liquid, the temperature sensor 403 can directly monitor the water temperature instead of the temperature of the metal support plate 401, thus improving the accuracy of temperature control.

[0051] Therefore, this utility model effectively overcomes the various shortcomings of the prior art and has high industrial application value.

[0052] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A temperature control component for a confocal micro Raman spectrometer, comprising a slide stage (2) and a circulation device (3); Its features are: The slide placement stage (2) is provided with a water storage cavity (201) inside, and a heating device (4) is installed inside the water storage cavity (201). The heating device (4) is used to heat the liquid inside the water storage cavity (201). The circulation device (3) is in fluid communication with the water storage cavity (201). The circulation device (3) drives the internal liquid circulation of the water storage cavity (201) and controls the temperature of the internal liquid of the water storage cavity (201).

2. The temperature control component for a confocal micro Raman spectrometer according to claim 1, characterized in that: The circulation device (3) includes a water tank (301), and a peristaltic pump (302) is installed inside the water tank (301). The water tank (301) contains liquid, and the peristaltic pump (302) drives the liquid to circulate.

3. The temperature control component for a confocal micro Raman spectrometer according to claim 2, characterized in that: A water supply pipe (5) is provided between the slide placement stage (2) and the circulation device (3). The water supply pipe (5) is divided into an inlet pipe and an outlet pipe. One end of the inlet pipe and one end of the outlet pipe are connected to the interior of the water storage cavity (201). The other end of the inlet pipe is connected to the outlet of the peristaltic pump (302), and the other end of the outlet pipe is connected to the interior of the water storage tank (301).

4. The temperature control component for a confocal micro Raman spectrometer according to claim 3, characterized in that: A pressure valve (501) is provided at the connection between the water outlet pipe and the glass slide placement platform (2), and the pressure valve (501) is located inside the water storage cavity (201); The connection between the water supply pipe (5) and the water storage cavity (201) is located above the heating device (4).

5. The temperature control component for a confocal micro Raman spectrometer according to claim 1, characterized in that: The heating device (4) includes a metal support plate (401), on which a heating tube (404) is installed. The wire of the heating tube (404) passes through the outer surface of the glass slide placement stage (2) and leads to the outside.

6. The temperature control component for a confocal micro Raman spectrometer according to claim 5, characterized in that: The heating tubes (404) are located at the bottom of the metal support plate (401) and are distributed in a snake shape. A temperature sensor (403) is also installed on the top of the metal support plate (401), and the temperature sensor (403) is in contact with the liquid.

7. The temperature control component for a confocal Raman microscopy spectrometer according to claim 6, characterized in that: A heat insulation block (402) is provided between the temperature sensor (403) and the metal support plate (401), and the heat insulation block (402) is made of plastic. A heat insulation groove (405) is provided between the gaps at the bends of the heating tube (404) at the bottom of the metal support plate (401). The data line of the temperature sensor (403) passes through the heat insulation block (402) to the inside of the heat insulation groove (405). The data line is led from the inside of the heat insulation groove (405) to the outside of the glass slide placement stage (2). The circuits of the temperature sensor (403) and the heating tube (404) are combined into a single sheathed cable (6), and the single sheathed cable (6) is introduced into the interior of the water tank (301) and connected to the external control device together with the circuit of the peristaltic pump (302).

8. A confocal micro Raman spectrometer, characterized in that, It includes a confocal micro Raman spectrometer body and a temperature control component for a confocal micro Raman spectrometer as described in any one of claims 1-7, wherein the temperature control component is disposed on the confocal micro Raman spectrometer body.

Images