Refrigerating device for reagent bin of chemiluminescence instrument

Abstract

The invention provides a refrigeration device for a reagent bin of a chemiluminescence instrument, and belongs to the technical field of refrigeration of reagent bins of chemiluminescence instruments. The refrigerating device for the reagent bin of the chemiluminescence instrument comprises a refrigerating plate, a Peltier is embedded in the refrigerating plate, and a heat dissipation plate is fixedly mounted on the refrigerating plate; an electrostatic brush mounting plate is arranged below the refrigeration plate, an electrostatic brush body is fixedly mounted on the electrostatic brush mounting plate and used for removing surface condensate water in the rotating and uniform mixing process of the rotating disc in the reagent bin, and meanwhile static electricity generated by friction between the electrostatic brush body and the rotating disc of the reagent bin is guided out through a ground wire. In the scheme, when the electrostatic brush body rotates along with the turntable, condensate water on the surface of the turntable is stripped through physical contact, and meanwhile, the ground wire leads out static electricity generated by friction to prevent the static electricity from damaging an instrument circuit or interfering detection; the recovery assembly and the static brush cooperate to actively collect stripped condensate water, and reagent pollution or equipment failure caused by condensate water residues is avoided.

Description

Technical Field

[0001] This invention relates to the field of refrigeration technology for reagent compartments in chemiluminescence instruments, and in particular to a refrigeration device for reagent compartments in chemiluminescence instruments. Background Technology

[0002] In the field of in vitro diagnostics, the detection accuracy of chemiluminescence instruments is highly dependent on the activity and stability of reagents, and a constant low-temperature storage environment is the core prerequisite for maintaining reagent activity. Usually, the temperature of the reagent chamber needs to be strictly controlled at a suitable temperature.

[0003] Current mainstream reagent chamber cooling solutions have significant technical flaws and are difficult to adapt to the needs of modern instruments. One type of solution uses a reheat circulation structure with complex piping connections. Although it can achieve a certain cooling effect, the piping layout is cumbersome, which not only occupies a lot of internal space, but also easily causes pipe blockages, leaks and other failures, significantly reducing the reliability of equipment operation and increasing maintenance costs. Another type of solution uses a simplified design with a single fan and cooling element. Its heat dissipation efficiency and cooling effect are mutually restrictive. The heat accumulation caused by untimely heat dissipation will quickly weaken the performance of the cooling element, resulting in excessive temperature fluctuations in the reagent chamber. This fails to meet the core requirement of constant temperature storage of reagents, and thus affects the accuracy of test results.

[0004] Crucially, existing refrigeration solutions do not provide an effective solution for the critical interference issue of condensation. The turntable in the reagent chamber is prone to condensation under alternating hot and cold environments. Existing technologies mostly rely on simple drainage channel designs, which can only passively guide some of the condensation and cannot achieve efficient collection and thorough cleaning. Residual condensation may lead to reagent contamination, turntable jamming, and other problems. At the same time, static electricity is easily accumulated during the condensation process. Existing solutions lack targeted static electricity conduction designs. Static electricity may damage the instrument's circuit components, further increasing the risk of equipment operation and seriously affecting the continuity and reliability of the testing work. Summary of the Invention

[0005] This invention provides a refrigeration device for the reagent compartment of a chemiluminescence instrument, addressing the lack of an effective solution to the critical interference problem of condensation in existing refrigeration solutions. Condensation easily forms on the rotating disc inside the reagent compartment under alternating hot and cold environments. Existing technologies mostly rely on simple guide channel designs, which can only passively guide a portion of the condensation, failing to achieve efficient collection and thorough cleaning. Residual condensation may lead to reagent contamination, disc jamming, and other problems. At the same time, static electricity easily accumulates during the condensation process, and existing solutions lack targeted static electricity conduction designs, which may damage the instrument's circuit components.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0007] A refrigeration device for a reagent compartment of a chemiluminescence instrument includes a refrigeration plate with a Peltier embedded within it, and a heat sink fixedly mounted on the refrigeration plate. Below the refrigeration plate is an electrostatic brush mounting plate, on which an electrostatic brush body is fixedly mounted for removing surface condensate during the mixing process of a rotating disc within the reagent compartment. Simultaneously, static electricity generated by friction between the electrostatic brush body and the reagent compartment disc is discharged via a ground wire. A recovery component is provided on the electrostatic brush body to recover condensate generated by the hot and cold contact between the disc and the reagent compartment. A fan assembly includes a first fan group mounted on the heat sink and a second fan group mounted on the refrigeration plate. The first fan group dissipates heat from the heat sink, and the second fan group blows cool air into the reagent compartment. A noise reduction component is mounted on the first fan group via a connecting component to reduce noise during operation and, in conjunction with a protective component, protects the first fan group.

[0008] Optionally, the recycling assembly includes a recycling tube fixedly installed on the electrostatic brush body, the recycling tube being connected to a suction air source, and a suction component being fixedly installed at the end of the recycling tube away from the suction air source.

[0009] Optionally, a fixing plate is fixedly installed inside the suction component, a positioning rod is fixedly installed on the fixing plate, a sealing block is slidably installed on the positioning rod, one end of a spring is fixedly installed on the sealing block, and the other end of the spring is fixedly connected to the fixing plate. An expansion cavity is opened inside the recovery pipe, and the diameter of the expansion cavity is larger than that of the sealing block. When the suction air source is started, a negative pressure will be generated in the recovery pipe, causing the sealing block to slide against the elastic force of the spring, thereby allowing condensate to enter the recovery pipe through the suction component.

[0010] Optionally, a first fan mounting plate is fixedly installed on the heat sink, the first fan assembly is fixedly installed on the first fan mounting plate, a second fan mounting plate is fixedly installed on the cooling plate, the second fan assembly is fixedly installed on the second fan mounting plate, the second fan assembly is located inside the reagent compartment during use, and the electrostatic brush mounting plate is fixedly installed on the second fan mounting plate.

[0011] Optionally, the noise reduction component includes a frame that is fitted onto the first fan assembly. The frame has an installation cavity, and the installation cavity contains sound-absorbing sponge.

[0012] Optionally, the connecting assembly includes two sets of mounting rods fixedly mounted on the first fan assembly. A snap plate is rotatably mounted on the mounting rod, and an elastic support piece is fixedly mounted on the snap plate. The end of the elastic support piece away from the snap plate is fixedly mounted on the first fan assembly. A pair of snap grooves that cooperate with the snap plate are provided on the sleeve frame.

[0013] Optionally, the protective assembly is mounted on the sleeve frame. The protective assembly includes a pair of first rotating shafts rotatably mounted on the sleeve frame, with a torsion spring between the first rotating shafts and the sleeve frame. A first protective plate is fixedly mounted on each of the first rotating shafts. Several pairs of second rotating shafts are rotatably mounted on the sleeve frame, with a second protective plate fixedly mounted on each of the second rotating shafts. Both the first and second rotating shafts have toothed grooves, and a gear belt that meshes with the toothed grooves is fitted onto the first and second rotating shafts. The first protective plates have meshing teeth fixedly mounted on their respective sides. Mounting seats are fixedly mounted on the surfaces of both the first and second protective plates, and protective hooks are rotatably mounted on each mounting seat. When the first fan assembly is not running, the first protective plate will be closed under the action of the torsion spring, and the second protective plate will be closed synchronously under the drive of the gear belt.

[0014] Optionally, the Peltier is made of semiconductor material.

[0015] Optionally, a thermistor is fixedly mounted on the electrostatic brush mounting plate, and the thermistor is used to detect the temperature inside the reagent chamber in real time.

[0016] Optionally, a support base is fixedly installed on the heat sink, and the heat sink is composed of multiple aluminum alloy heat sink fins, with the support base used to support the multiple aluminum alloy heat sink fins.

[0017] The beneficial effects of the above-described technical solution of the present invention are as follows:

[0018] In the above scheme, after the suction gas source is started, it generates negative pressure suction, which is transmitted to the suction component through the recovery pipe. The suction component is aligned with the condensate stripped off by the electrostatic brush body, and the negative pressure is used to quickly draw the condensate from the reagent chamber into the recovery pipe. Then, it is transported to the designated collection area through the recovery pipe. By using negative pressure adsorption, it directly acts on the source area of ​​condensate generation. Compared with the traditional diversion method, the collection efficiency is higher, and it can quickly remove condensate, avoiding the diffusion or residue of condensate in the reagent chamber. This effectively reduces the risk of reagent contamination and equipment short circuit, and ensures the cleanliness of the reagent storage environment and the safe operation of the equipment.

[0019] In the above scheme, in the initial state, the elastic force of the spring keeps the sealing block at the front end of the recovery tube opening, forming a sealing structure to prevent outside air from entering the recovery tube and ensure the stability of the negative pressure environment inside the recovery tube. When the suction air source is started to generate negative pressure and the suction force is greater than the spring force, the sealing block slides along the positioning rod towards the expansion cavity, and the spring is stretched. When the sealing block slides into the expansion cavity, a passage is formed between the suction component and the recovery tube. Under the action of negative pressure suction, the condensate enters the recovery tube through the suction component. When the recovery is completed, the elastic force of the spring drives the sealing block to reset and seal the tube opening, preventing the condensate in the recovery tube from flowing back, further improving the reliability and efficiency of condensate recovery, and reducing the adverse effects of condensate on the refrigeration device and reagent compartment. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the overall structure of the invention from another perspective;

[0022] Figure 3 This is a schematic diagram of the Peltier structure of the present invention;

[0023] Figure 4 This is a schematic diagram showing the cooperation between the first fan assembly and the first fan mounting plate of the present invention;

[0024] Figure 5 This is a schematic diagram of the structure of the protective component of the present invention;

[0025] Figure 6 This is a schematic diagram of the structure of the protective hook of the present invention;

[0026] Figure 7 This is a schematic diagram of the structure of the connection component of the present invention;

[0027] Figure 8 This is a schematic diagram of the structure of the recycling component of the present invention.

[0028] [Figure Labels]

[0029] 10. Cooling plate; 11. Peltier; 12. Heat sink; 13. Static brush mounting plate; 14. Static brush body; 15. Support base; 16. Thermistor;

[0030] 20. Fan assembly; 21. First fan mounting plate; 22. First fan group; 23. Second fan group; 24. Second fan mounting plate;

[0031] 30. Noise reduction components; 31. Frame; 32. Mounting cavity; 33. Sound-absorbing foam;

[0032] 40. Connecting component; 41. Mounting rod; 42. Snap-on plate; 43. Elastic support piece; 44. Snap-on slot;

[0033] 50. Protective assembly; 51. First rotating shaft; 52. First protective plate; 53. Second rotating shaft; 54. Second protective plate; 55. Gear belt; 56. Gear groove; 57. Meshing tooth; 58. Torsion spring; 59. Mounting base; 510. Protective hook;

[0034] 60. Recycling component; 61. Recycling tube; 62. Suction component; 63. Fixing plate; 64. Positioning rod; 65. Sealing block; 66. Spring; 67. Expansion chamber. Detailed Implementation

[0035] To make the technical problems, technical solutions and advantages of the present invention clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.

[0036] like Figures 1 to 8 As shown, an embodiment of the present invention provides a refrigeration device for a reagent compartment of a chemiluminescence instrument, including a refrigeration plate 10, a Peltier 11 embedded in the refrigeration plate 10, and a heat sink 12 fixedly mounted on the refrigeration plate 10; an electrostatic brush mounting plate 13 is disposed below the refrigeration plate 10, and an electrostatic brush body 14 is fixedly mounted on the electrostatic brush mounting plate 13, used to remove surface condensate during the mixing process of the rotating disc in the reagent compartment, and simultaneously conduct static electricity generated by the friction between the electrostatic brush body 14 and the reagent compartment rotating disc through a ground wire; a recovery component 60 is disposed on the electrostatic brush body 14, the recovery component 60 being used to cooperate with the electrostatic... The brush body 14 recovers the condensate generated by the hot and cold contact of the turntable in the reagent chamber; the fan assembly 20 includes a first fan group 22 disposed on the heat sink 12 and a second fan group 23 disposed on the cooling plate 10. The first fan group 22 is used to dissipate heat from the heat sink 12, and the second fan group 23 is used to blow cold air into the reagent chamber; the noise reduction component 30 is disposed on the first fan group 22 through the connecting component 40. The noise reduction component 30 is used to reduce the noise of the first fan group 22 during operation, and at the same time works with the protective component 50 to protect the first fan group 22.

[0037] When the Peltier 11 is powered on, it uses the semiconductor thermoelectric effect to transfer energy, so that the cooling plate 10 forms a cold source facing the reagent chamber, and the heat generated on the other side is conducted to the heat sink 12; the first fan group 22 blows air onto the heat sink 12 to accelerate the air flow and quickly dissipate heat, avoiding heat accumulation that weakens the cooling efficiency of the cooling plate 10; the second fan group 23 blows air into the reagent chamber to promote the uniform diffusion of cold air and build a stable low-temperature environment to ensure the activity of the reagent.

[0038] As the electrostatic brush body 14 rotates with the turntable, it physically contacts and peels off the condensate on the surface of the turntable. At the same time, the ground wire discharges the static electricity generated by friction, preventing static electricity from damaging the instrument circuit or interfering with the detection. The recovery component 60 works in conjunction with the electrostatic brush body 14 to actively collect the peeled condensate, avoiding reagent contamination or equipment failure caused by condensate residue.

[0039] The noise reduction component 30 encloses the first fan assembly 22 and absorbs the mechanical noise generated by the fan operation through a specific structure, reducing the noise interference to the operating environment and precision components of the instrument. The protective component 50 forms a closed protection when the fan is not running, preventing dust and debris from entering the fan and affecting its operational stability. When the fan is running, it does not obstruct the heat dissipation airflow, achieving the dual functions of noise reduction and protection. The entire device, through the coordinated operation of refrigeration, heat dissipation, condensate treatment, and noise reduction and protection, not only ensures the constant temperature storage requirements of the reagent chamber, but also improves the stability, safety and environmental adaptability of the device operation.

[0040] like Figure 8 As shown, the recovery assembly 60 includes a recovery tube 61 fixedly installed on the electrostatic brush body 14. The recovery tube 61 is connected to the suction air source, and a suction component 62 is fixedly installed at the end of the recovery tube 61 away from the suction air source. After the suction air source is started, it generates negative pressure suction, which is transmitted to the suction component 62 through the recovery tube 61. The suction component 62 is aligned with the condensate stripped from the electrostatic brush body 14, and the negative pressure is used to quickly draw the condensate from the reagent chamber into the recovery tube 61, and then transport it to the designated collection area through the recovery tube 61. By using negative pressure adsorption, it directly acts on the source area of ​​condensate generation. Compared with the traditional diversion method, the collection efficiency is higher, and the condensate can be quickly removed, avoiding the diffusion or residue of condensate in the reagent chamber. This effectively reduces the risk of reagent contamination and equipment short circuit, and ensures the cleanliness of the reagent storage environment and the safe operation of the equipment.

[0041] A fixing plate 63 is fixedly installed inside the suction component 62. A positioning rod 64 is fixedly installed on the fixing plate 63. A sealing block 65 is slidably installed on the positioning rod 64. One end of a spring 66 is fixedly installed on the sealing block 65. The other end of the spring 66 is fixedly connected to the fixing plate 63. An expansion cavity 67 is opened inside the recovery pipe 61. The diameter of the expansion cavity 67 is larger than that of the sealing block 65. When the suction air source is started, a negative pressure will be generated in the recovery pipe 61, which will cause the sealing block 65 to slide against the elastic force of the spring 66, so that the condensate can enter the recovery pipe 61 through the suction component 62.

[0042] In the initial state, the elastic force of spring 66 keeps the sealing block 65 at the front end of the recovery pipe 61, forming a sealed structure to prevent outside air from entering the recovery pipe 61 and ensure the stability of the negative pressure environment inside the recovery pipe 61. When the suction air source is started and generates negative pressure, and the suction force is greater than the elastic force of spring 66, the sealing block 65 slides along the positioning rod 64 toward the expansion cavity 67, and spring 66 is stretched. When the sealing block 65 slides into the expansion cavity 67, a passage is formed between the suction component 62 and the recovery pipe 61, and condensate enters the recovery pipe 61 through the suction component 62 under the action of negative pressure suction. When the recovery is completed, the elastic force of spring 66 drives the sealing block 65 to reset and seal the pipe opening, preventing the condensate in the recovery pipe 61 from flowing back, further improving the reliability and efficiency of condensate recovery, and reducing the adverse effects of condensate on the refrigeration device and reagent chamber.

[0043] like Figure 1 , Figure 2 and Figure 4 As shown, a first fan mounting plate 21 is fixedly installed on the heat sink 12, the first fan assembly 22 is fixedly installed on the first fan mounting plate 21, a second fan mounting plate 24 is fixedly installed on the cooling plate 10, the second fan assembly 23 is fixedly installed on the second fan mounting plate 24, the second fan assembly 23 is located inside the reagent chamber during use, and the electrostatic brush mounting plate 13 is fixedly installed on the second fan mounting plate 24.

[0044] The first fan mounting plate 21 provides a stable mounting reference for the first fan assembly 22, ensuring that the airflow direction of the first fan assembly 22 is precisely aligned with the heat sink 12. This ensures that the blowing energy is concentrated on the heat sink 12, maximizing the acceleration of airflow on the surface of the heat sink 12, improving heat dissipation efficiency, and preventing insufficient heat dissipation due to fan installation misalignment. The second fan mounting plate 24 fixes the second fan assembly 23 to the side of the cooling plate 10 facing the reagent compartment, and positions the second fan assembly 23 inside the reagent compartment. This shortens the cold air delivery path, reduces cold loss, and allows the cold air to diffuse directly inside the reagent compartment, quickly forming a uniform low-temperature environment and preventing temperature dead zones inside the reagent compartment. The electrostatic brush mounting plate 13, fixed to the second fan mounting plate 24, achieves positional linkage with the second fan assembly 23, ensuring that the electrostatic brush body 14 can accurately correspond to the reagent compartment turntable. When the turntable rotates, it efficiently strips condensate. By precisely positioning each component, the coordinated and efficient operation of cooling, heat dissipation, and condensate stripping functions is ensured, improving the overall operational stability and reliability of the device.

[0045] like Figures 4 to 5As shown, the noise reduction component 30 includes a frame 31, which is fitted onto the first fan assembly 22. An installation cavity 32 is formed within the frame 31, and a sound-absorbing sponge 33 is disposed within the installation cavity 32. The frame 31 is fitted onto the outside of the first fan assembly 22. The sound-absorbing sponge 33 within the installation cavity 32 has a porous structure. When noise waves propagate to the sound-absorbing sponge 33, the sound waves enter the pores of the sponge and rub against the pore walls, converting sound energy into heat energy and dissipating it. This significantly reduces the intensity of noise propagation, effectively reducing the mechanical noise of the first fan assembly 22 during operation, minimizing noise interference with the laboratory and other operating environments, providing a more comfortable working environment for operators, and preventing noise vibration from being transmitted through the structure to the precision detection components inside the instrument, thus ensuring the accuracy of the detection results.

[0046] like Figures 4 to 7 As shown, the connecting assembly 40 includes two sets of mounting rods 41 fixedly mounted on the first fan assembly 22. A snap-fit ​​plate 42 is rotatably mounted on each mounting rod 41, and an elastic support piece 43 is fixedly mounted on the snap-fit ​​plate 42. One end of the elastic support piece 43 away from the snap-fit ​​plate 42 is fixedly mounted on the first fan assembly 22. The sleeve frame 31 has a pair of snap-fit ​​grooves 44 that mate with the snap-fit ​​plate 42. The mounting rods 41 provide rotational support points for the snap-fit ​​plate 42. When the noise reduction assembly 30 is installed, pulling the snap-fit ​​plate 42 will snap it into place. The buckle plate 42 rotates around the mounting rod 41, and the elastic support plate 43 is stretched to produce elastic deformation. The sleeve frame 31 is aligned with the first fan group 22, so that the buckle groove 44 on the sleeve frame 31 corresponds to the position of the buckle plate 42. The buckle plate 42 is released, and the elastic restoring force of the elastic support plate 43 pushes the buckle plate 42 into the buckle groove 44, realizing the quick fixation of the sleeve frame 31 and the first fan group 22. When it is necessary to disassemble the noise reduction component 30 for maintenance, the buckle plate 42 is pulled again to disengage the buckle plate 42 from the buckle groove 44, and the sleeve frame 31 can be removed.

[0047] like Figures 5 to 6As shown, the protective component 50 is mounted on the sleeve 31. The protective component 50 includes a pair of first rotating shafts 51 rotatably mounted on the sleeve 31. A torsion spring 58 is provided between the first rotating shafts 51 and the sleeve 31. A first protective plate 52 is fixedly mounted on each of the first rotating shafts 51. Several pairs of second rotating shafts 53 are rotatably mounted on the sleeve 31. A second protective plate 54 is fixedly mounted on each of the second rotating shafts 53. The first rotating shafts 51 and the second rotating shafts 53 are provided with toothed grooves 56. A gear belt 55 that meshes with the toothed grooves 56 is sleeved on the first rotating shafts 51 and the second rotating shafts 53. The first protective plates 52 are fixedly mounted with meshing teeth 57 on the side closest to each other. Mounting seats 59 are fixedly mounted on the surfaces of the first protective plates 52 and the second protective plates 54. A protective hook 510 is rotatably mounted on each mounting seat 59. When the first fan group 22 is not running, the first protective plate 52 will be closed under the action of the torsion spring 58, and the second protective plate 54 will be closed synchronously under the drive of the gear belt 55.

[0048] In the initial state, the elastic force of the torsion spring 58 keeps the first protective plate 52 closed, and they are fixed together by meshing teeth 57. At this time, the second rotating shaft 53 drives the second protective plate 54 to close synchronously under the transmission action of the gear belt 55, forming an all-round protection for the first fan group 22, preventing external dust and debris from entering the fan or getting tangled in the fan blades, and avoiding fan failure that affects heat dissipation efficiency. When the first fan group 22 is running, the wind force generated will rotate the first protective plate 52. The first protective plate 52 drives the first rotating shaft 51 to rotate, and the torsion spring 58 is twisted and stored. At the same time, the gear belt 55 drives the second rotating shaft 53 and the second protective plate 54 to open synchronously, without affecting the normal air blowing and heat dissipation of the fan. After the fan is turned off, the elastic restoring force of the torsion spring 58 drives the first protective plate 52 and the second protective plate 54 to close automatically, forming protection again. The protective hook 510 can collect lint in the air, preventing lint from entering between the heat sink plates 12 with the wind. If lint adheres to the heat sink plate 12, it will affect the heat dissipation efficiency of the heat sink plate 12.

[0049] like Figure 3As shown, the Peltier 11 is made of semiconductor material; the size of the semiconductor material can be flexibly adjusted as needed; the semiconductor material has unique thermoelectric conversion characteristics. When current passes through a thermocouple pair composed of different types of semiconductors, a temperature difference will be generated at both ends of the thermocouple pair, that is, one end absorbs heat and the other end releases heat, thereby realizing the cooling function of the cooling plate 10. Compared with traditional cooling elements, the Peltier 11 made of semiconductor material has a longer lifespan and can adapt to long-term continuous operation scenarios, reducing the frequency of equipment maintenance; at the same time, the size of the Peltier 11 can be flexibly adjusted according to the space size of the reagent compartment and the cooling power requirements, adapting to the installation requirements of different models of chemiluminescence instruments, improving the versatility of the cooling device, ensuring that the required cooling capacity can be stably output in different devices, and ensuring the stability of the low-temperature environment for reagent storage.

[0050] like Figure 1 As shown, a thermistor 16 is fixedly installed on the electrostatic brush mounting plate 13. The thermistor 16 is used to detect the temperature inside the reagent chamber in real time. The resistance of the thermistor 16 changes significantly with the temperature inside the reagent chamber. The thermistor 16 senses the temperature signal inside the reagent chamber in real time and converts the temperature signal into an electrical signal, which is transmitted to the control system of the chemiluminescence instrument. The control system obtains the actual temperature inside the reagent chamber by analyzing the electrical signal. When the temperature is higher than the set threshold, the control system increases the cooling power of the cooling plate 10 and increases the speed of the fan assembly 20 to accelerate cooling. When the temperature is lower than the set threshold, the cooling power of the cooling plate 10 is reduced and the speed of the fan assembly 20 is reduced to avoid excessive cooling and energy waste. This realizes real-time monitoring and dynamic adjustment of the temperature inside the reagent chamber, ensuring that temperature fluctuations are controlled within a very small range, ensuring that the organic properties of the reagents are not affected by temperature changes, and thus improving the accuracy of chemiluminescence detection results.

[0051] like Figure 1 and Figure 4 As shown, a support base 15 is fixedly installed on the heat sink 12. The heat sink 12 is composed of multiple aluminum alloy heat sink fins, and the support base 15 is used to support the multiple aluminum alloy heat sink fins. The aluminum alloy material has excellent thermal conductivity, which can quickly receive the heat conducted by the cooling plate 10 and distribute it to each fin, increasing the heat dissipation area. The support base 15 is fixed to the bottom of the heat sink 12, which plays a stable supporting role for the multiple aluminum alloy heat sink fins, preventing the fins from deforming or falling off due to factors such as fan blowing and equipment vibration, and ensuring the structural integrity of the heat sink 12. The design of multiple heat sink fins greatly increases the contact area between the heat sink 12 and the air. With the blowing action of the first fan group 22, the heat can be dissipated more efficiently, reducing the temperature of the heat sink 12, thereby improving the cooling efficiency of the cooling plate 10, avoiding the reduction of the cooling capacity of the cooling plate 10 due to insufficient heat dissipation, ensuring that the temperature inside the reagent chamber is stable within the set range, and providing reliable low temperature protection for reagent storage.

[0052] The working process of the refrigeration device for the reagent compartment of the chemiluminescence instrument provided by this invention is as follows:

[0053] When the Peltier 11, a semiconductor material embedded in the cooling plate 10, is powered on, it forms a cold source on one side of the cooling plate 10 towards the reagent compartment through the thermoelectric effect. The heat generated on the other side is conducted to the heat dissipation plate 12, which is composed of multiple aluminum alloy heat dissipation fins. The support base 15 provides stable support for the heat dissipation fins to prevent them from deforming and affecting heat dissipation. The first fan group 22 is fixed to the heat dissipation plate 12 through the first fan mounting plate 21. When running, it blows air continuously towards the heat dissipation fins to accelerate airflow and quickly dissipate heat to the outside, ensuring that the cooling plate 10 continues to cool efficiently. The second fan group 23 is fixed to the cooling plate 10 and located inside the reagent compartment through the second fan mounting plate 24. When running, it blows the cold air generated by the cooling plate 10 into the reagent compartment, promoting the uniform diffusion of cold air and stabilizing the temperature inside the reagent compartment within the reagent storage requirement range of 2℃-8℃.

[0054] When the turntable inside the reagent chamber rotates to mix the reagent, condensation occurs on the surface of the turntable due to alternating hot and cold temperatures. Simultaneously, the electrostatic brush body 14 rotates with the turntable and comes into contact with it, physically scraping away the condensation. The static electricity generated by the friction is discharged through the ground wire to prevent static electricity from damaging the instrument circuitry. The thermistor 16 on the electrostatic brush mounting plate 13 monitors the temperature inside the reagent chamber in real time, converting the temperature signal into an electrical signal and transmitting it to the control system. The system dynamically adjusts the cooling power of the Peltier 11 and the fan speed to achieve precise temperature control. The recovery component 60 works in conjunction with the electrostatic brush body 14. After the suction air source is activated, negative pressure is generated through the recovery pipe 61, which overcomes the elastic force of the spring 66 and pushes the sealing block 65 to slide, allowing the condensation to enter the recovery pipe 61 through the suction component 62.

[0055] The noise reduction component 30 is installed on the outside of the first fan assembly 22 via the connecting component 40. The fan assembly is fitted onto the sleeve 31, and the sound-absorbing sponge 33 in the internal mounting cavity 32 absorbs the noise of the fan operation. The buckle plate 42 and buckle slot 44 of the connecting component 40 enable quick installation and removal of the noise reduction component 30. When the fan is not running, the torsion spring 58 on the protective component 50 on the sleeve 31 drives the first protective plate 52 to close, and the second protective plate 54 closes synchronously through the gear belt 55, blocking dust and debris. When the fan is running, the airflow pushes the protective plate open, and the protective hook 510 intercepts lint in the air, preventing it from adhering to the heat sink fins and affecting heat dissipation, thus achieving dual protection of noise reduction and protection.

[0056] The entire device simplifies the complex piping structure of traditional refrigeration systems and improves operational reliability through the coordinated operation of functions such as refrigeration, heat dissipation, temperature monitoring, condensate recovery, and noise reduction and protection. Each component is precisely installed and positioned to ensure accurate and efficient functional linkage. It not only meets the development needs of chemiluminescence instruments for automation, high throughput, and miniaturization, but also provides a stable, clean, and low-interference storage environment for reagents, ensuring the accuracy of test results and the long-term stability of equipment operation.

[0057] The above description represents the preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A refrigeration device for the reagent compartment of a chemiluminescence instrument, comprising a refrigeration plate, characterized in that, The cooling plate is embedded with a Peltier, and a heat sink is fixedly installed on the cooling plate. Below the cooling plate is an electrostatic brush mounting plate, on which an electrostatic brush body is fixedly mounted. This is used to remove surface condensate during the mixing process of the rotating disc in the reagent chamber, and at the same time, the static electricity generated by the friction between the electrostatic brush body and the rotating disc in the reagent chamber is discharged through the ground wire. The electrostatic brush body is equipped with a recycling component, which is used in conjunction with the electrostatic brush body to recycle the condensate generated by the hot and cold contact of the turntable in the reagent chamber. A fan assembly, comprising a first fan group disposed on a heat sink and a second fan group disposed on a cooling plate, wherein the first fan group is used to dissipate heat from the heat sink and the second fan group is used to blow cold air into the reagent chamber. A noise reduction component is provided, which is mounted on the first fan assembly via a connecting component. The noise reduction component is used to reduce the noise of the first fan assembly during operation, and at the same time works with a protection component to protect the first fan assembly.

2. The refrigeration device for the reagent compartment of the chemiluminescence instrument according to claim 1, characterized in that, The recycling assembly includes a recycling tube fixedly installed on the electrostatic brush body. The recycling tube is connected to a suction air source, and a suction component is fixedly installed at the end of the recycling tube away from the suction air source.

3. The refrigeration device for the reagent compartment of a chemiluminescence instrument according to claim 2, characterized in that, A fixing plate is fixedly installed inside the suction component, a positioning rod is fixedly installed on the fixing plate, a sealing block is slidably installed on the positioning rod, one end of a spring is fixedly installed on the sealing block, and the other end of the spring is fixedly connected to the fixing plate. An expansion cavity is opened inside the recovery pipe, and the diameter of the expansion cavity is larger than that of the sealing block. When the suction air source is started, a negative pressure will be generated in the recovery pipe, causing the sealing block to slide against the elastic force of the spring, thereby allowing condensate to enter the recovery pipe through the suction component.

4. The refrigeration device for the reagent compartment of a chemiluminescence instrument according to claim 1, characterized in that, A first fan mounting plate is fixedly installed on the heat sink plate, and the first fan assembly is fixedly installed on the first fan mounting plate. A second fan mounting plate is fixedly installed on the cooling plate, and the second fan assembly is fixedly installed on the second fan mounting plate. The second fan assembly is located inside the reagent compartment during use. The electrostatic brush mounting plate is fixedly installed on the second fan mounting plate.

5. The refrigeration device for the reagent compartment of a chemiluminescence instrument according to claim 1, characterized in that, The noise reduction component includes a frame that is fitted onto the first fan assembly. The frame has an installation cavity inside, and the installation cavity contains sound-absorbing sponge.

6. The refrigeration device for the reagent compartment of a chemiluminescence instrument according to claim 5, characterized in that, The connecting assembly includes two sets of mounting rods fixedly installed on the first fan assembly. A snap plate is rotatably mounted on the mounting rod. An elastic support piece is fixedly mounted on the snap plate. The end of the elastic support piece away from the snap plate is fixedly installed on the first fan assembly. A pair of snap grooves that cooperate with the snap plate are provided on the sleeve frame.

7. The refrigeration device for the reagent compartment of a chemiluminescence instrument according to claim 5, characterized in that, The protective assembly is mounted on the sleeve frame. The protective assembly includes a pair of first rotating shafts rotatably mounted on the sleeve frame, with a torsion spring between the first rotating shafts and the sleeve frame. A first protective plate is fixedly mounted on each of the first rotating shafts. Several pairs of second rotating shafts are rotatably mounted on the sleeve frame, with second protective plates fixedly mounted on each of the second rotating shafts. Both the first and second rotating shafts have toothed grooves, and gear belts meshing with the toothed grooves are fitted onto the first and second rotating shafts. The first protective plates have meshing teeth fixedly mounted on their respective sides. Mounting seats are fixedly mounted on the surfaces of both the first and second protective plates, and protective hooks are rotatably mounted on each mounting seat. When the first fan assembly is not running, the first protective plate will be closed under the action of the torsion springs, and the second protective plate will close synchronously under the drive of the gear belts.

8. The refrigeration device for the reagent compartment of a chemiluminescence instrument according to claim 1, characterized in that, The Peltier is made of semiconductor material.

9. The refrigeration device for the reagent compartment of a chemiluminescence instrument according to claim 1, characterized in that, A thermistor is fixedly mounted on the electrostatic brush mounting plate, and the thermistor is used to detect the temperature inside the reagent chamber in real time.

10. The refrigeration device for the reagent compartment of a chemiluminescence instrument according to claim 1, characterized in that, A support base is fixedly installed on the heat sink. The heat sink is composed of multiple aluminum alloy heat sink fins, and the support base is used to support the multiple aluminum alloy heat sink fins.

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