Novel heating cavity structure with uniform temperature and rapid refrigeration

Abstract

The utility model discloses a novel heating cavity structure capable of realizing uniform temperature and rapid refrigeration, which is characterized by comprising a shell, and a cushion block is arranged in an inner cavity of the shell; the cuvette frame is mounted on the upper side of the cushion block, and a spring piece, a lifting rod, a positioning pin and a joint are arranged on the cuvette frame; the temperature control device is arranged on the lower side of the cushion block and comprises a magnet and a motor, the magnet is installed on the motor through a coupler, the driving end of the motor is provided with a heat exchanger, the heat exchanger is connected with the cushion block, and a semiconductor chilling plate is further arranged between the heat exchanger and the cushion block. According to the semiconductor temperature control structure disclosed by the utility model, the cuvette can be in a temperature range of 0-80 DEG C, the temperature control precision is 0.01, the temperature accuracy is + / -0.05, the cuvette is more accurate and quicker to heat and cool, the structure is simple, the mounting and the dismounting are convenient, the data is more accurate when a spectrograph is used for testing a solvent in the cuvette, the efficiency is improved, and the working time is shortened.

Description

Technical Field

[0001] This utility model relates to the technical field of fluorescence spectrophotometers, specifically to a novel heating cavity structure with uniform temperature and rapid cooling. Background Technology

[0002] Based on the principle that ground-state molecules absorb excitation light, become excited, and release some energy as fluorescence during their return to the ground state, the different emission spectra of fluorescence are used to qualitatively identify substances. Quantitative analysis of the substance is then performed by analyzing the absorbance of the fluorescence.

[0003] Fluorescence spectrophotometers have been applied in many fields, especially in pharmacy and pharmacology, life sciences, medicine, and organic and inorganic chemistry. However, in traditional fluorescence spectrophotometers, the cuvette temperature control device suffers from inaccurate temperature control, high control time and cost, and susceptibility to damage. This affects the energy excitation of fluorescence, and many components are difficult to disassemble and maintain, making it a significant factor hindering the instrument's accuracy and precision. Utility Model Content

[0004] The purpose of this invention is to provide a novel heating cavity structure with uniform temperature and rapid cooling, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a novel heating cavity structure with uniform temperature and rapid cooling, comprising:

[0006] The outer casing has a pad inside its cavity;

[0007] A cuvette holder, which is mounted on the upper side of a pad, and is provided with a spring plate, a lifting rod, a positioning pin and a connector;

[0008] A temperature control device is located on the underside of the pad and includes a magnet and a motor. The magnet is mounted on the motor via a coupling. A heat exchanger is located on the drive end of the motor. The heat exchanger is connected to the pad, and a semiconductor cooling chip is also provided between the heat exchanger and the pad.

[0009] Preferably, the cuvette holder is square in shape, with right angles formed at the internal corners using electrical discharge machining, and a slot and hole are made at one corner, with the spring plate installed in the slot and hole.

[0010] Preferably, the cuvette holder has four through holes at its bottom for introducing pure nitrogen gas. The lifting rod, equipped with positioning pins and connectors, is installed inside the cuvette holder for retrieving the cuvettes.

[0011] Preferably, a temperature sensor is installed on one side of the bottom of the cuvette holder to detect the temperature of the cuvette.

[0012] Preferably, the pad has a bend hole for the passage of pure nitrogen gas and a temperature sensor wire.

[0013] Preferably, the heat exchanger is connected to an external radiator component, and the heat exchanger and the external radiator component are connected by inlet and outlet pipes, which are equipped with quick connectors.

[0014] Preferably, the housing is mounted on the base plate.

[0015] Compared with existing technologies, the advantages of this invention are as follows: This invention can heat and cool cuvettes by changing the direction of the semiconductor current, which is simpler and more convenient than the traditional separate heating and cooling design; a custom radial magnet is used to attract the stir bar to stir the solution, making the solvent temperature inside the cuvette more uniform; a vent is added to the bottom of the cuvette holder to allow pure nitrogen gas to pass through, preventing fogging and water droplets from forming on the cuvette surface due to low temperatures. This design not only facilitates disassembly and maintenance but also makes the solvent temperature inside the cuvette more uniform and accurate, greatly improving the accuracy and reliability of fluorescence detection. Furthermore, it improves debugging efficiency during instrument production, significantly increasing production efficiency. Attached Figure Description

[0016] Figure 1 This is a side view of the structure of this utility model (I);

[0017] Figure 2 This is a side view diagram (II) of the structure of this utility model;

[0018] In the diagram: 100, cuvette holder; 200, pad; 300, spring plate; 400, lifting rod; 500, connector; 600, housing; 700, coupling; 800, heat exchanger; 900, radiator component; 1000, baffle; 1100, base plate; 01, locating pin; 02, temperature sensor; 03, magnet; 04, motor; 05, thermoelectric cooler; 06, quick connector. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] The technical solution of this utility model will now be described in detail with reference to specific embodiments.

[0021] Please see Figures 1 to 2 This utility model provides a technical solution: a novel heating cavity structure with uniform temperature and rapid cooling, including an outer shell 600, a cuvette holder 100 and a temperature control device. The cuvette holder 100 is disposed inside the outer shell 600, and a pad 200 is disposed inside the outer shell 600. The cuvette holder 100 is disposed on the upper side of the pad 200, and the temperature control device is disposed on the lower side of the pad 200.

[0022] In one embodiment of this utility model, a cuvette holder 100 is mounted on the upper side of a pad 200. The cuvette holder 100 is provided with a spring plate 300, a lifting rod 400, a positioning pin 01, and a connector 500. The spring plate 300 is mounted on the cuvette holder 100, and the lifting rod 400, the positioning pin 01, and the connector 500 are mounted on the cuvette holder 100.

[0023] In one specific embodiment of this utility model, the cuvette holder 100 is square in shape, made of aluminum alloy, and has a matte blackened finish. The internal corners are machined into right angles using electrical discharge machining (EDM), and a slot and hole are added at one corner to facilitate cuvette installation. A spring plate 300 is installed at one corner to secure the cuvette. Four through holes are located at the bottom of the cuvette holder 100 to allow pure nitrogen gas to pass through, preventing ice formation on the cuvette surface during the cooling process. A lifting rod 400, equipped with a positioning pin and connector, is installed inside the cuvette holder for retrieving the cuvette.

[0024] In one embodiment of this utility model, the temperature control device is located on the lower side of the pad 200 and includes a magnet 03 and a motor 04. The magnet 03 is mounted on the motor 04 via a coupling 700. A heat exchanger 800 is located at the drive end of the motor 04. The heat exchanger 800 is connected to the pad 200, and a semiconductor cooling chip 05 is also provided between the heat exchanger 800 and the pad 200. This device can heat and cool the cuvette.

[0025] In one embodiment of this utility model, a temperature sensor 02 is installed on one side of the bottom of the cuvette holder 100 for detecting the temperature of the cuvette.

[0026] In one embodiment of this utility model, the pad 200 is provided with a turning hole for the line passing through pure nitrogen gas and temperature sensor 02.

[0027] In one embodiment of this utility model, the heat exchanger 800 is connected to the external radiator component 900, and the heat exchanger 800 and the external radiator component 900 are connected by inlet and outlet pipes. The inlet and outlet pipes are provided with quick connectors 06, which can be disassembled and installed at any time, making installation and maintenance convenient.

[0028] In one embodiment of the present invention, the outer shell 600 is mounted on the base plate 1100.

[0029] In summary, the novel semiconductor temperature control structure provided by this utility model is applicable to photometers such as fluorescence spectrophotometers, and is suitable for quantitative and qualitative analysis of various substances. It has stable performance and improves the accuracy of the instrument while reducing installation, debugging and maintenance costs.

[0030] In the embodiments provided by this utility model, the temperature of the cuvette can be controlled with an accuracy of 0.01 and a temperature accuracy of ±0.05 within the temperature range of 0-80 degrees Celsius, making the temperature rise and fall of the cuvette more precise and faster.

[0031] In the description process of the above instruction manual:

[0032] The descriptions of terms such as "this embodiment", "this utility model embodiment", "as shown", "further", "further improved technical sub-scheme", etc., indicate that the specific features, structures, materials or characteristics described in the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the illustrative expressions of the above terms are not necessarily directed at the same embodiment or example, and the specific features, structures, materials or characteristics described can be combined or combined in any suitable manner in one or more embodiments or examples.

[0033] Furthermore, without creating contradictions, those skilled in the art can combine or integrate the different embodiments or examples described in this specification, as well as the features of the different embodiments or examples.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A novel heating cavity structure with uniform temperature and rapid cooling, characterized in that, include: A housing (600) having a pad (200) inside its cavity; A cuvette holder (100) is mounted on the upper side of a pad (200). The cuvette holder (100) is provided with a spring plate (300), a lifting rod (400), a positioning pin (01), and a connector (500). A temperature control device is located on the underside of the pad (200) and includes a magnet (03) and a motor (04). The magnet (03) is mounted on the motor (04) via a coupling (700). A heat exchanger (800) is provided on the drive end of the motor (04). The heat exchanger (800) is connected to the pad (200). A semiconductor cooling chip (05) is also provided between the heat exchanger (800) and the pad (200).

2. The novel heating cavity structure with uniform temperature and rapid cooling according to claim 1, characterized in that: The cuvette holder (100) is square in shape, with right angles formed at the inner corners using electrical discharge technology, and a slot and hole are made at one corner, with the spring plate (300) installed in the slot and hole.

3. The novel heating cavity structure with uniform temperature and rapid cooling according to claim 2, characterized in that: The cuvette holder (100) has four through holes at the bottom for introducing pure nitrogen gas. The lifting rod (400) is equipped with a positioning pin and a connector, which is installed inside the cuvette holder for extracting cuvettes.

4. The novel heating cavity structure with uniform temperature and rapid cooling according to claim 3, characterized in that: A temperature sensor (02) is installed on one side of the bottom of the cuvette holder (100) for detecting the temperature of the cuvette.

5. The novel heating cavity structure with uniform temperature and rapid cooling according to claim 4, characterized in that: The pad (200) has a bend hole for the line passing through pure nitrogen gas and temperature sensor (02).

6. The novel heating cavity structure with uniform temperature and rapid cooling according to claim 5, characterized in that: The heat exchanger (800) is connected to the external radiator component (900), and the heat exchanger (800) and the external radiator component (900) are connected by inlet and outlet pipes, and quick connectors (06) are provided on the inlet and outlet pipes.

7. The novel heating cavity structure with uniform temperature and rapid cooling according to claim 6, characterized in that: The outer casing (600) is mounted on the base plate (1100).

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