Temperature-control timing reagent card incubation device

Abstract

The utility model relates to the technical field of reagent card incubation, and discloses a temperature-control timing reagent card incubation device, which comprises a shell, a plurality of reagent card placing grooves, a temperature-control timing module, a temperature-control timing module and a temperature-control timing module, the silicone rubber heating plate is fixed in the shell, the silicone rubber heating plate comprises a plurality of independent heating units, and each heating unit corresponds to one reagent card placing groove; the temperature detection module comprises a plurality of temperature detection units, and each temperature detection unit is embedded in one reagent card placing groove; the photoelectric detection module comprises a plurality of photoelectric sensors, and each photoelectric sensor is arranged in one reagent card placing groove; when a reagent card is put in, time and temperature collaborative precise control can be independently realized. Independent closed-loop adjustment of the temperature of each slot position is ensured, the batch operation efficiency is improved, and the problem that due to overall temperature control of existing equipment, time and temperature cooperative precise control cannot be independently achieved is solved.

Description

Technical Field

[0001] This utility model relates to the field of reagent card incubation technology, and more specifically, to a temperature-controlled and timed reagent card incubation device. Background Technology

[0002] In the field of in vitro diagnostics using immunochromatography, the precision requirements for temperature control and timing management during reagent card incubation are becoming increasingly stringent. Traditional incubation equipment often employs an integrated constant temperature chamber structure, which suffers from the following technical bottlenecks: First, the heating unit typically uses a single-loop PTC heating element or water bath device, which cannot achieve independent temperature control in multiple areas. When processing reagent cards with different temperature requirements, batch operations are necessary, resulting in low experimental efficiency. Second, incubation timing often relies on external timers or manual recording, lacking a linkage mechanism with the temperature control module, making it difficult to eliminate timing errors caused by differences in reagent card placement time.

[0003] In the field of in vitro diagnostics, the temperature control accuracy and timing coordination of the reagent card constant temperature incubation device directly affect the reliability of the test results. Existing technologies, such as the device disclosed in CN221471880U, although using a positioning photoelectric trigger for independent timing (see claim 1, paragraph

[0048] of the specification) can eliminate timing errors, still have the following technical defects: Firstly, the heating module uses an integral heating element covering the entire card slot (see paragraph

[0048] of the specification, "the heating element is fixed below the mounting plate" and its appendix). Figure 1 This results in multiple reagent cards needing to share the same temperature parameter, making it unsuitable for different incubation needs (such as simultaneous testing at 37℃ and 42℃); secondly, temperature feedback relies on a single digital display tube (section

[0054] of the instruction manual), lacking slot-level visual interactive design, requiring operators to repeatedly check the correspondence between the connector and the display unit, which can easily lead to human error.

[0004] In summary, the above methods still pose a risk of omission or confusion in the recording of sample addition time when operators handle multiple testing items simultaneously. Using a single heating plate makes it impossible to achieve precise and coordinated control of time and temperature. Once the time is up, the operator must immediately remove the reagent card from that slot, as the heating element still needs to heat other slots, making it impossible to stop heating the entire plate. If the card is removed too slowly or forgotten, heating will exceed the time limit, leading to loss of biological activity (antibodies, antigens, or enzymes in the reagent card are temperature-sensitive; excessive heating may cause protein denaturation, resulting in loss of binding ability to the target analyte and false negative or false positive results) or damage to the reagent mechanism (the chromogenic layer or reaction membrane of some reagents may undergo physical changes due to continuous high temperatures, such as drying and cracking, affecting the liquid chromatography process and causing abnormal color development or uninterpretable results).

[0005] To address the aforementioned issues, there is an urgent need for an incubation device that integrates multi-loop autonomous independent temperature and time control, slot-level optical signal feedback, and intelligent collaborative triggering. This device would further overcome bottlenecks such as time and temperature errors and low human-machine interaction efficiency, thereby meeting the requirements for precision and automation in large-scale testing scenarios. Utility Model Content

[0006] This invention aims to overcome at least one of the defects of the prior art and provide a temperature-controlled timing reagent card incubation device to solve the fundamental problem that when a reagent card is placed, it is impossible to achieve precise time and temperature control independently.

[0007] This utility model solves the problem as follows: This utility model discloses a temperature-controlled timing reagent card incubation device, comprising: a housing with multiple reagent card placement slots; a silicone rubber heating plate fixed inside the housing, the silicone rubber heating plate including multiple independent heating units, each heating unit corresponding to one reagent card placement slot; a temperature detection module including multiple temperature detection units, each temperature detection unit embedded in one reagent card placement slot; a photoelectric detection module including multiple photoelectric sensors, each photoelectric sensor disposed in one reagent card placement slot; and a control module disposed inside the housing and connected to the silicone rubber heating plate, the temperature detection module, and the photoelectric detection module respectively via electrical connection lines. The control module has independent timing function for multiple slots, used to receive temperature signals from the temperature detection units and presence signals from the photoelectric sensors.

[0008] The control module receives temperature signals and presence signals from photoelectric sensors. When the temperature reaches the target and a reagent card is detected being placed, it automatically triggers an independent countdown for the corresponding slot. After the countdown ends, the heating unit for the corresponding reagent card placement slot can be stopped independently. This allows for autonomous and independent precise control of time and temperature coordination during reagent card placement. Precise temperature control by using silicone rubber heating plates ensures independent closed-loop temperature adjustment for each slot, avoiding temperature interference between multiple slots. Through modular design and independent control mechanisms, this device enables parallel processing of differentiated incubation in multiple slots, improving batch operation efficiency and solving the problem of existing equipment's inability to achieve autonomous and independent precise control of time and temperature coordination due to overall temperature control. It is suitable for rapid deployment in laboratories and on-site, significantly improving the accuracy of test results and ease of operation.

[0009] Furthermore, each reagent card slot is equipped with a three-color light, which is electrically connected to the control module and configured to provide the following indications based on the slot's status: Blue: The temperature of the slot has not reached the preset incubation temperature or the incubation time has not been set; Green: The temperature of the slot has reached the preset incubation temperature and the incubation time has been set; Red: When the slot is in the green state and the photoelectric sensor detects that the reagent card is in place, the three-color light switches to red and starts an independent countdown; Flashing green: When the independent countdown ends, the three-color light switches to flashing green to indicate that the reagent card should be removed. This three-state color-coded visual feedback system enables multi-dimensional status synchronization, allowing operators to intuitively judge the slot's preparation (blue), ready (green), working (red), and completed (flashing green) status without the need for additional instruments. This significantly reduces the operational error rate, effectively improves the operator's experience, and enhances the human-machine interface of the equipment.

[0010] Furthermore, the tri-color light protrudes 1-3mm from the bottom surface of the reagent card placement slot. This 1-3mm raised tri-color light structure design, because the reagent card placement slot is much larger than a typical reagent card, effectively solves the problem of blind spots caused by the tri-color light being obstructed by the reagent card, while ensuring stable placement of the reagent card and enhancing the visibility of status indicators.

[0011] Furthermore, the temperature detection unit is a thermistor. Using a thermistor as the temperature detection unit achieves high measurement accuracy while offering advantages such as low cost, strong resistance to electromagnetic interference, and fast response speed. It is particularly suitable for high-density temperature monitoring needs in multi-channel independent temperature control scenarios.

[0012] Furthermore, it also includes a display screen, embedded in the surface of the housing and electrically connected to the control module. The display screen is a touchscreen, used to display the real-time temperature, preset incubation time, and mode switching indicator of each reagent card slot, and supports inputting temperature parameters, incubation time, and mode switching commands via touch operation. The embedded touchscreen integrated into the housing surface provides a visual display of the real-time temperature, preset incubation time, and mode switching indicator of each reagent card slot, and supports user input of parameters or mode switching via touch operation. This design interacts with the control module via electrical connection, converting touch signals into digital commands, replacing traditional physical buttons, simplifying the operation process, and reducing human error by dynamically displaying slot status (such as temperature reaching the target, timing, etc.), thus improving device interactivity and operational efficiency.

[0013] Furthermore, the control module includes a controller and a memory. The controller uses an STM32F4 series controller, supporting PID temperature algorithm and independent timing for multiple slots. The memory stores preset temperature parameters, incubation time parameters, and mode switching instructions. The controller is connected to the silicone rubber heating plate, temperature detection unit, and photoelectric sensor via electrical connections. The STM32F4 series controller supports PID temperature algorithm and independent timing for multiple slots. The controller controls the silicone rubber heating plate, temperature detection unit, and photoelectric sensor via electrical connections, achieving closed-loop temperature regulation and independent countdown functions. The PID algorithm dynamically adjusts the heating power to maintain temperature accuracy, and the timing function can independently time each slot. This design, through hardware and software collaboration, ensures differentiated temperature control and accurate timing for multiple slots, improving system stability.

[0014] Furthermore, each heating unit of the silicone rubber heating plate is an independent resistance heating element, and the control module achieves independent start and stop of the heating unit by switching the corresponding relay. Each heating unit of the silicone rubber heating plate is an independent resistance heating element, and its power supply circuit is independently controlled by a relay. The control module achieves independent start and stop of the heating unit by switching relays, ensuring that the temperature of each tank does not interfere with each other. The independent power supply design avoids temperature fluctuations caused by heat transfer, supports multiple tanks to incubate at different temperatures simultaneously (such as 37℃ and 42℃), and can reduce energy consumption by shutting down the heating of empty tanks. This structure, through physical isolation (silicone rubber itself has low heat transfer, and there are barriers between tanks to isolate the temperature) and independent control, significantly improves incubation efficiency and system reliability, meeting the needs of batch processing.

[0015] Furthermore, the detection surface of the photoelectric sensor is flush with the bottom plane of the reagent card placement slot, and it adopts an infrared reflection detection structure. It determines the reagent card's position by detecting changes in the intensity of infrared light reflection from the reagent card's surface. In the technical field (such as optical sensing and electronic detection), infrared reflection detection structures are common knowledge, especially widely used and technologically mature in sensor design, automation control, and medical equipment. Utilizing the basic process of infrared light emission → object reflection → signal reception is a classic photoelectric detection method, proposed and popularized as early as the mid-to-late 20th century. The reflection / absorption characteristics of infrared light and matter are textbook content in optics and electronics. By using a coplanarly mounted infrared reflection photoelectric sensor, the risk of jamming caused by traditional mechanical triggering detection mechanisms is eliminated.

[0016] Furthermore, it also includes an audio prompt unit located within the housing. The control module controls the audio prompt unit to emit a prompt sound when the independent countdown ends. An integrated audio-visual dual-mode prompt system synchronously triggers a prompt (duration adjustable) when the independent countdown ends. Through a multi-sensory collaborative warning mechanism, it ensures that the completion notification can still be effectively received in noisy laboratory environments or when the operator's gaze leaves the device, avoiding detection failure caused by reagent over-incubation.

[0017] Furthermore, the control module is configured to receive mode switching commands. When a reagent card slot switches to pure timing mode, the control module immediately cuts off the power to the corresponding heating unit and directly starts an independent countdown when the photoelectric sensor detects the reagent card is in place, ignoring the feedback signal from the temperature detection module. To further expand application scenarios, this device can also be switched to pure timing mode via the control module. In this mode, the heating function is forcibly turned off, and the system triggers an independent countdown only based on the reagent card's presence. This is suitable for room temperature incubation experiments that do not require heating (such as some immunochromatographic reagent cards that do not require heating for incubation), meeting diverse detection needs.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] Precise temperature control by using silicone rubber heating plates ensures independent closed-loop temperature adjustment for each tank, avoiding temperature interference between multiple tanks. Modular design and independent control mechanisms enable parallel processing of differentiated incubation across multiple tanks, improving batch operation efficiency. This solves the problem of existing equipment, which, due to overall temperature control, cannot achieve independent and precise time and temperature coordination, making it suitable for rapid deployment in laboratories and on-site, significantly improving operational convenience. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0021] Figure 2 This is a schematic diagram of the inner side of the upper shell of this utility model.

[0022] Figure 3 This is a schematic diagram of the structure of the upper shell surface of this utility model.

[0023] Figure 4 This is a schematic diagram of the inner side of the lower shell of this utility model.

[0024] In the diagram: 1. Upper housing; 2. Lower housing; 3. Display screen; 4. Photoelectric sensor; 5. Tri-color lamp; 6. Tri-color lamp board; 7. Silicone rubber heating plate; 8. Thermistor; 9. Switch socket filter; 10. Power module; 11. Temperature and time control circuit board; 12. Reagent card placement slot. Detailed Implementation

[0025] The accompanying drawings are for illustrative purposes only and should not be construed as limiting the scope of this invention. To better illustrate the following embodiments, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0026] This utility model relates to a temperature-controlled timing reagent card incubation device, which adopts a modular design and includes the following core components:

[0027] The housing comprises an upper housing 1 and a lower housing 2. The outer surface of the upper housing 1 has a horizontal array of multiple reagent card placement slots 12. The slot size of each reagent card placement slot 12 is larger than that of a typical reagent card (typically 20mm wide and 100mm long). Specifically, the width of each slot 12 is 40mm and the length is 120mm. This design accommodates reagent cards of different sizes, effectively increasing its applicability. In this design, multiple reagent card placement slots 12 are provided on the surface of the housing 1, as detailed below. Figure 1 As shown, this is suitable for independent testing scenarios involving a large number of reagent cards.

[0028] Human-computer interaction module: Display screen 3, embedded on the surface of the upper housing 1, is a 7-inch touch screen, fixed with screws, and electrically connected to the internal controller for parameter setting and status display.

[0029] Heating module: Silicone rubber heating plate 7, installed on the inner side of the upper shell 1, adopts a multi-loop layout design, its internal heating wire is divided into multiple independent heating loops, each loop is a heating unit, each heating unit corresponds to a reagent card placement slot 12, and specific heating components can also use independent resistance heating elements, which are connected to the controller through independent electrode leads to achieve precise temperature control in different areas.

[0030] Temperature detection module: includes a temperature detection unit set in the reagent card placement slot 12, specifically a thermistor 8, which is embedded in each reagent card placement slot 12. Heraeus thermistors are specifically selected from Germany: Heraeus thermistors are based on thin-film platinum technology, using high-purity platinum material to form a nano-scale thin film layer (thickness 0.9-1.3mm) through ion beam sputtering process.

[0031] Photoelectric detection module: Specifically, photoelectric sensor 4. Each reagent card placement slot 12 has a photoelectric sensor 4 embedded at the bottom. MEXICO photoelectric sensor is selected. It uses an infrared light source to detect the reagent card's position and triggers a signal by the change in reflected light intensity. It has no mechanical protrusion design to avoid interfering with the placement of the reagent card.

[0032] The tri-color light panel 6: Each row of reagent card slots 12 corresponds to one light panel. The number of tri-color lights 5 on each light panel is consistent with the number and position of each row of slots (the positions of the reagent card slots 12, hereinafter referred to as slots). The tri-color lights 5 protrude 2mm from the bottom of the slot. The heating status is indicated by three colors: blue, green, red, and flashing green. Blue indicates that the temperature of the slot has not reached the preset incubation temperature or the incubation time has not been set. Green indicates that the temperature of the slot has reached the preset incubation temperature and the incubation time has been set. Red indicates that heating and timing are in progress, i.e., incubation is in progress. Flashing green indicates that the temperature has reached the target and the countdown has ended, i.e., incubation is complete. In this scheme, the photoelectric detection module is located at one end of the reagent card slot 12, and the tri-color lights 5 are located at the other end of the reagent card slot 12. When a reagent card is placed, it first aligns with the end with the photoelectric sensor, triggering the photoelectric detection module. Because the size of the reagent card slot 12 is larger than that of a typical reagent card, the tri-color lights 5 are not blocked when the reagent card is placed.

[0033] The control module, specifically the temperature and time control circuit board 11, is integrated into the lower housing 2. It incorporates an STM32F4 series controller, supporting PID temperature algorithms and high-precision timing functions. The signal from the thermistor 8 is directly fed back to the controller (STM32F4 series controller), which, based on the signal, controls the corresponding slot's silicone rubber heating plate 7 to stop heating its resistance heating element or heating wire. The temperature and time control circuit board 11 integrates a memory that stores preset temperature parameters, incubation time parameters, and mode switching commands. The controller is connected to the silicone rubber heating plate, temperature detection unit, and photoelectric sensor via electrical connection lines.

[0034] Sound prompt unit: a buzzer, connected to the temperature and time control circuit board 11, which triggers a prompt sound when the countdown ends.

[0035] Power module 10: supplies power to all components. Switch socket filter 9, connected to the power input terminal, suppresses high-frequency noise through an LC filter circuit to ensure system power supply stability.

[0036] System working principle:

[0037] Temperature control logic: The user sets the temperature of the target reagent card placement slot 12 (e.g., 37℃) via display screen 3. The controller drives the silicone rubber heating plate 7 to supply power to the corresponding area. The thermistor 8 collects the temperature inside the slot in real time. The controller dynamically adjusts the heating power through a PID algorithm until the temperature stabilizes within the set value ±0.2℃. During the heating process, the tri-color light 5 is initially colorless, then displays blue during heating, and switches to green after the preset incubation time and the temperature reaches the target.

[0038] Timing Trigger and Status Feedback: When a reagent card is placed in reagent card slot 12, photoelectric sensor 4 detects a change in reflected light intensity (threshold set to 150% of background light intensity) and sends an presence signal to the controller. The controller starts an independent countdown and simultaneously switches the corresponding tri-color light 5 in the slot to red. After the independent countdown ends, the controller cuts off the power supply to the heating circuit, the tri-color light 5 turns green and flashes, and a buzzer is triggered.

[0039] Multi-task parallel processing: The system supports independent operation of multiple slots. Users can set parameters in batches or individually. Each slot automatically and independently starts timing based on the order in which the reagent cards are placed, through a photoelectric detection module, thus eliminating errors caused by operation time differences. The system can also be configured via display screen 3 to disable the heating function and enable only the timing function, entering a pure timing mode.

[0040] Users can enable pure timer mode in the following ways:

[0041] (a) Trigger a mode switching command via display screen 3;

[0042] (b) After receiving the instruction, the control module immediately disconnects the power supply to the corresponding silicone rubber heating plate 7 and displays the “TC-OFF” logo on the interface, and the corresponding slot tri-color light 5 directly displays green;

[0043] (c) After the reagent card is inserted, the photoelectric sensor 4 detects the presence signal, the independent countdown starts immediately, and is not limited by temperature conditions. The tri-color light 5 displays red and starts the independent countdown.

[0044] (d) When the independent countdown ends, the tri-color light 5 flashes green to indicate that the countdown has ended.

[0045] When the device is in the aforementioned temperature control and timing coordination mode, the tri-color light 5 follows a state chain of: blue → green → red → flashing green. When switching to pure timing mode, the logic of tri-color light 5 is adjusted to: green (mode ready) → red (timing in progress) → flashing green (complete). In pure timing mode, the green state of tri-color light 5 only indicates that the mode is ready and is unrelated to temperature parameters. The control module visually distinguishes the green state from the temperature control mode by reducing the green brightness or adding a slow breathing light effect (frequency 0.5Hz). The device supports dual working states of temperature control and timing coordination mode and pure timing mode. Users can freely switch between them according to detection needs. The temperature judgment logic and tri-color light coding in the two modes are independent of each other. Through differentiated tri-color light coding design, unambiguous indication of multiple mode states is achieved, ensuring that the operator can quickly identify the current working mode.

[0046] Detailed description of the workflow of the temperature control and timing coordination mode:

[0047] Step 1: Initial state: After the device is powered on, the switch socket filter 9 filters out grid interference, and the power module 10 supplies power to all components. All tri-color lights 5 are off, and the display screen 3 starts the operation interface.

[0048] Step 2: Setting and heating the incubation temperature; the user inputs the temperature of the target reagent card placement slot 12 via display screen 3 (multiple reagent cards can have their temperature set uniformly or individually), the controller interprets the command and supplies power to the corresponding area of ​​the silicone rubber heating plate 7. Thermistor 8 continuously feeds back the area temperature data, and the controller adjusts the heating power using a PID algorithm until the temperature stabilizes. During heating, the tri-color indicator 5 displays blue.

[0049] Step 3: Incubation time setting: The user enters the incubation time for each slot on the interface (multiple slots can be set together or independently). Steps 2 and 3 can be performed simultaneously or separately, and there is no restriction on the order of Steps 2 and 3.

[0050] Step 4: Reagent Card Placement: When the temperature in the reagent card placement slot 12 reaches the set temperature and the set incubation time is reached, the corresponding tri-color light 5 in the reagent card placement slot 12 turns green; place the sample reagent card into the slot with the required incubation time and heating temperature. After the photoelectric sensor 4 detects the reagent card, it triggers an independent countdown, and the corresponding tri-color light 5 turns red.

[0051] Step 5: Independent Countdown End and Notification: After the independent countdown is complete, the controller stops heating and switches the tri-color light 5 to flashing green. The buzzer sounds 3 times (0.5 seconds each time, with a 0.2-second interval), and the heating unit of the corresponding slot stops heating. After the user removes the reagent card, the slot enters standby mode.

[0052] Step 6: Re-incubate in slot 12 with empty reagent cards (two modes available):

[0053] Mode 1: After the reagent card is removed, the photoelectric sensor 4 detects that the light intensity has returned to the background value (≤15lx, lx is the unit of light intensity), and the tricolor lamp 5 automatically turns off.

[0054] Mode 2: The parameters from the previous mode are used directly. The silicone rubber heating plate 7 preheats the empty slot, and the tri-color light 5 displays blue. Once the temperature reaches the target, it switches to green, and the user can put the reagent card back in.

[0055] Key technological advantages: The tri-color light 5 enables precise temperature and time control through human interaction: before the temperature reaches the target or when no incubation time is set, the tri-color light 5 displays blue; when the reagent card placement slot 12 reaches the preset incubation temperature and an incubation time has been set, the tri-color light 5 displays green; when a reagent card is placed, an independent countdown is triggered, and the silicone rubber heating plate 7 heats the reagent card, and the tri-color light 5 displays red; when the independent countdown ends and the heating temperature reaches the target, heating stops, and the tri-color light 5 turns green and flashes continuously; abnormal warning mode: if the temperature exceeds the threshold or the timer is interrupted during incubation, the tri-color light 5 flashes red rapidly.

[0056] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the technical solution of this utility model, and are not intended to limit the specific implementation of this utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the claims of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A temperature-controlled, timing reagent card incubation device, characterized in that, include: The housing has multiple reagent card slots. A silicone rubber heating plate, which is fixed inside a housing, includes multiple independent heating units, each corresponding to a reagent card placement slot. A temperature detection module, comprising multiple temperature detection units, each temperature detection unit being embedded in a reagent card placement slot; The photoelectric detection module includes multiple photoelectric sensors, each of which is disposed in a reagent card placement slot; The control module is housed within the housing and is connected to the silicone rubber heating plate, the temperature detection module, and the photoelectric detection module via electrical connection wires. The control module has independent timing function for multiple slots and is used to receive temperature signals from the temperature detection unit and presence signals from the photoelectric sensor.

2. The temperature-controlled timed reagent card incubation device of claim 1, wherein, Each reagent card slot is equipped with a tri-color light, which is electrically connected to a control module and configured to perform the following instructions based on the slot's position status: Blue: The temperature of this tank has not reached the preset incubation temperature or the incubation time has not been set; Green: The temperature of this tank has reached the preset incubation temperature and the incubation time has been set; Red: When the slot is in the green state and the photoelectric sensor detects that the reagent card is in place, the three-color light switches to red and starts an independent countdown; Green flashing: When the independent countdown ends, the tri-color light switches to green flashing to indicate that the reagent card should be taken out.

3. The temperature-controlled timed reagent card incubation device of claim 2, wherein, The tri-color lamp protrudes 1-3 mm from the bottom surface of the reagent card placement slot.

4. The temperature-controlled timed reagent card incubation device of claim 1, wherein: The control module is configured to receive mode switching commands. When a reagent card placement slot is switched to pure timing mode, the control module immediately cuts off the power supply to the corresponding heating unit and starts an independent countdown directly when the photoelectric sensor detects that the reagent card is in place, ignoring the feedback signal from the temperature detection module.

5. The temperature-controlled timed reagent card incubation device of claim 4, wherein, Also includes: The display screen is embedded in the surface of the housing and electrically connected to the control module; the display screen is a touch screen, used to display the real-time temperature, preset incubation time and mode switching indicator of each reagent card placement slot.

6. The temperature-controlled, timed reagent card incubation device of claim 1, wherein: The control module includes a controller and a memory. The controller supports PID temperature algorithm and multi-slot independent timing function. The memory stores preset temperature parameters, incubation time parameters and mode switching instructions. The controller is connected to the silicone rubber heating plate, temperature detection unit and photoelectric sensor through electrical connection wires.

7. The temperature-controlled, timed reagent card incubation device of claim 1, wherein: Each heating unit of the silicone rubber heating plate is an independent resistance heating element, and the control module realizes the independent start and stop of the heating unit by switching the corresponding relay.

8. The temperature-controlled timed reagent card incubation device of claim 1, wherein, The temperature detection unit is a thermistor.

9. The temperature-controlled timed reagent card incubation device of claim 1, wherein, The detection surface of the photoelectric sensor is flush with the bottom plane of the reagent card placement slot, and adopts an infrared reflection detection structure. It determines whether the reagent card is in place by detecting the change in the intensity of infrared light reflection on the surface of the reagent card.

10. The temperature-controlled timed reagent card incubation device of claim 1, wherein, It also includes a sound prompt unit installed inside the housing, and the control module controls the sound prompt unit to emit a prompt sound when the independent countdown ends.

Images