A temperature control module suitable for small urine analyzer

Abstract

The present invention discloses a temperature control module suitable for a small urine analyzer, wherein the temperature control air outlet is detachably connected to the mounting frame and is placed on the back of the mounting frame, the electric heating device is detachably connected to the mounting frame and is located inside the mounting frame and close to the temperature control air outlet, the temperature sensor is arranged inside the mounting frame, the electric heating module bracket is detachably connected to the mounting frame, the heating plate is fixedly connected to the electric heating module bracket and is located inside the electric heating module bracket, the thermistor is attached to the heating plate, and the temperature control unit is electrically connected to the temperature control air outlet, the temperature sensor and the heating plate respectively. The above structure can ensure that the urine analyzer can perform normal detection and output accurate results even in a low temperature environment, thereby improving the environmental applicability of the urine analyzer.

Description

Technical Field

[0001] The present invention relates to the technical field of urine analysis equipment, and in particular to a temperature control module suitable for a small urine analyzer. Background Art

[0002] Urine testing is one of the three main routine clinical tests in modern medicine and plays a crucial role in disease diagnosis. As the world evolves, humans are increasingly engaging in research and living in extreme environments. Consequently, urine analyzers are undergoing innovation and upgrades to meet these demands.

[0003] Most of the current dry chemical urine analyzers use photocolorimetry for detection. However, some items in conventional urine test strip formulas react slowly in low-temperature environments, resulting in delayed color development and inaccurate test results. In view of this, it is very necessary to provide a temperature control module for small urine analyzers that can improve the environmental applicability of urine analyzers and realize accurate detection even in low-temperature environments. Summary of the Invention

[0004] The object of the present invention is to provide a temperature control module suitable for a small urine analyzer, which can improve the environmental applicability of the urine analyzer and realize the function of accurate detection even in a low-temperature environment.

[0005] To achieve the above-mentioned objectives, the present invention adopts a temperature control module suitable for a small urine analyzer, including a mounting bracket, a temperature control air outlet, an electric heating device, a temperature sensor and a temperature control unit. The temperature control air outlet is detachably connected to the mounting bracket and is placed on the back of the mounting bracket. The electric heating device is detachably connected to the mounting bracket and is located inside the mounting bracket and close to the temperature control air outlet. The temperature sensor is arranged in the mounting bracket. The electric heating device includes an electric heating module bracket, a heating plate and a thermistor. The electric heating module bracket is detachably connected to the mounting bracket, the heating plate is fixedly connected to the electric heating module bracket and is located inside the electric heating module bracket, the thermistor is attached to the heating plate, and the temperature control unit is electrically connected to the temperature control air outlet, the temperature sensor and the heating plate respectively.

[0006] The temperature-controlled air outlet component includes a temperature-controlled bracket and a fan. The temperature-controlled bracket is fixedly connected to the mounting frame. There are at least two fans, which are equidistantly arranged on the temperature-controlled bracket.

[0007] The temperature control module suitable for the small urine analyzer further includes a temperature protection switch, which is detachably connected to the temperature control bracket and is attached to the top of the electric heating module bracket.

[0008] In which, the temperature protection switch includes a protective cover, a shell, a metal sheet, a push rod, a flexible part, a first contact and a second contact. The shell has an upper cavity and a lower cavity. The two ends of the metal sheet are fixedly connected to the shell and are located in the upper cavity. The metal sheet is arranged in an arched structure. The top end of the metal sheet is abutted against one end of the push rod, and the other end of the push rod is inserted into the lower cavity. The first contact is arranged in the lower cavity. One end of the flexible part is fixedly connected to the shell, and the other end of the flexible part is fixedly connected to the second contact, and the second contact is in contact with the first contact.

[0009] The temperature sensor includes an intra-cavity temperature sensor and a heating plate temperature sensor, and both the intra-cavity temperature sensor and the heating plate temperature sensor are electrically connected to the temperature control unit.

[0010] The temperature control unit includes a single-chip microcomputer, and a heating control circuit, a fan control circuit, a first temperature control circuit, and a second temperature control circuit arranged on the single-chip microcomputer. The heating control circuit includes a photoelectric coupler U32, a resistor R108, a resistor R96, a MOS transistor Q2, and a capacitor C45. Port 1 of the photoelectric coupler U32 is connected in series with the resistor R108, and the other end of the resistor R108 is connected to a 3.3V power supply. Port 2 of the photoelectric coupler U32 is used to input a heating control signal. Port 15 of the photoelectric coupler U32 is grounded. Port 16 of the photoelectric coupler U32 is respectively connected to the resistor R96 and port G of the MOS transistor Q2. The other end of the resistor R96 and port S of the MOS transistor Q2 are both connected to a 12V power supply. Port D of the MOS transistor Q2 is respectively connected to the capacitor C45 and socket port 1 on the electric heating device. The other end of the capacitor C45 and socket port 2 on the electric heating device are both grounded.

[0011] The fan control circuit includes a photoelectric coupler U34, a resistor R117, a resistor R118, a MOS tube Q3 and a capacitor C104. Port 3 of the photoelectric coupler U34 is connected in series with the resistor R118, and the other end of the resistor R118 is connected to a 3.3V power supply. Port 4 of the photoelectric coupler U34 is used to output a fan control signal. Port 13 of the photoelectric coupler U34 is grounded. Port 14 of the photoelectric coupler U34 is respectively connected to the resistor R117 and port G of the MOS tube Q3. The other end of the resistor R117 is grounded. Port D of the MOS tube Q3 is connected to the socket port 1 on the temperature-controlled air outlet component. Port S of the MOS tube Q3 is respectively connected to a 12V power supply and the capacitor C104. The capacitor C104 and the socket port 2 on the temperature-controlled air outlet component are both grounded.

[0012] The beneficial effects of the present invention are as follows: the heating plate generates heat after being energized to increase its own temperature, and then the temperature-controlled air outlet member is activated to blow the high-temperature air in the mounting frame onto the temperature sensor, so that the real-time temperature data in the current temperature control module can be obtained. Subsequently, this data is transmitted to the temperature control unit, and the temperature of the heating plate is adjusted again by using the thermistor until the temperature sensor detects that the temperature in the temperature control module is consistent with the set temperature, thereby ensuring that the urine analyzer can perform normal detection and output accurate results in a low-temperature environment, thereby improving the environmental applicability of the urine analyzer. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0014] Figure 1 It is a structural schematic diagram of a temperature control module applicable to a small urine analyzer of the present invention.

[0015] Figure 2 This is a structural breakdown diagram of the temperature control module of the present invention that is applicable to a small urine analyzer.

[0016] Figure 3 It is a structural exploded view of the electric heating device of the present invention.

[0017] Figure 4 It is a structural explosion diagram of the temperature control module of the present invention applicable to a small urine analyzer.

[0018] Figure 5 It is a schematic diagram of the internal structure of the temperature protection switch of the present invention.

[0019] Figure 6 It is a logic diagram of the temperature control unit of the present invention.

[0020] Figure 7 It is a heating control circuit diagram of the present invention.

[0021] Figure 8 It is a fan control circuit diagram of the present invention.

[0022] Figure 9 This is the first temperature control circuit diagram of the present invention.

[0023] Figure 10 This is the second temperature control circuit diagram of the present invention.

[0024] 1-mounting frame, 2-temperature control air outlet, 21-temperature control bracket, 22-fan, 3-electric heating device, 31-electric heating module bracket, 32-heating plate, 33-thermistor, 4-temperature sensor, 5-temperature control unit, 6-temperature protection switch, 61-protective cover, 62-housing, 621-upper cavity, 622-lower cavity, 63-metal sheet, 64-push rod, 65-flexible part, 66-first contact, 67-second contact, 7-heating control circuit, 8-fan control circuit, 9-first temperature control circuit, 10-second temperature control circuit. DETAILED DESCRIPTION

[0025] The following describes embodiments of the present invention in detail, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and are not to be construed as limiting the present invention.

[0026] In the description of the present invention, it should be understood that the terms "length," "width," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," "outside," and the like, indicating positions or location relationships, are based on the positions or location relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present invention. Furthermore, in the description of the present invention, "plurality" means two or more, unless otherwise expressly and specifically defined.

[0027] See also Figures 1 to 10 The present invention provides a temperature control module suitable for a small urine analyzer, comprising a mounting bracket 1, a temperature control air outlet member 2, an electric heating device 3, a temperature sensor 4 and a temperature control unit 5, wherein the temperature control air outlet member 2 is detachably connected to the mounting bracket 1 and is placed on the back of the mounting bracket 1, the electric heating device 3 is detachably connected to the mounting bracket 1 and is located inside the mounting bracket 1 and close to the temperature control air outlet member 2, the temperature sensor 4 is arranged inside the mounting bracket 1, the electric heating device 3 comprises an electric heating module bracket 31, a heating plate 32 and a thermistor 33, the electric heating module bracket 31 is detachably connected to the mounting bracket 1, the heating plate 32 is fixedly connected to the electric heating module bracket 31 and is located inside the electric heating module bracket 31, the thermistor 33 is attached to the heating plate 32, and the temperature control unit 5 is electrically connected to the temperature control air outlet member 2, the temperature sensor 4 and the heating plate 32 respectively.

[0028] In this embodiment, the thermistor 33 is a PTC thermistor 33. When the heating plate 32 is energized, it generates heat to increase its own temperature. Then, the temperature control air outlet 2 is activated to blow the high-temperature air in the mounting frame 1 onto the temperature sensor 4, so that the real-time temperature data in the current temperature control module can be obtained. Subsequently, this data is transmitted to the temperature control unit 5, and the thermistor 33 is used to adjust the temperature of the heating plate 32 again until the temperature sensor 4 detects that the temperature in the temperature control module is consistent with the set temperature. Then, the hot air is output to the urine test strip to be tested area to ensure that its reaction temperature is the optimal temperature for the test strip to reflect, thereby ensuring that the urine analyzer can perform normal detection and output accurate results in a low-temperature environment, thereby improving the environmental applicability of the urine analyzer. In addition, the temperature control module suitable for small urine analyzers is small in size and can be widely compatible with small urine analyzers to ensure that the urine analyzer can perform normal detection and output accurate results in a low-temperature environment.

[0029] Furthermore, the temperature-controlled air outlet member 2 includes a temperature-controlled bracket 21 and a fan 22 . The temperature-controlled bracket 21 is fixedly connected to the mounting frame 1 . There are at least two fans 22 , which are equidistantly arranged on the temperature-controlled bracket 21 .

[0030] In this embodiment, the temperature control bracket 21 is used to support the fan 22, wherein two fans 22 are preferably installed, and the high-temperature wind in the mounting frame 1 is blown onto the temperature sensor 4 through the two fans 22. The setting of the two fans 22 can achieve dual temperature control.

[0031] Furthermore, the temperature control module suitable for the small urine analyzer also includes a temperature protection switch 6 , which is detachably connected to the temperature control bracket 21 , and the temperature protection switch 6 is attached to the top of the electric heating module bracket 31 . The temperature protection switch 6 includes a protective cover 61, a shell 62, a metal sheet 63, a push rod 64, a flexible member 65, a first contact 66 and a second contact 67. The shell 62 has an upper cavity 621 and a lower cavity 622. Both ends of the metal sheet 63 are fixedly connected to the shell 62 and are located in the upper cavity 621. The metal sheet 63 is arranged in an arched structure. The top of the metal sheet 63 is abutted against one end of the push rod 64, and the other end of the push rod 64 is inserted into the lower cavity 622. The first contact 66 is arranged in the lower cavity 622. One end of the flexible member 65 is fixedly connected to the shell 62, and the other end of the flexible member 65 is fixedly connected to the second contact 67, and the second contact 67 is in contact with the first contact 66.

[0032] In this embodiment, the metal sheet 63 is a double-layered metal sheet 63. During the module design process, to prevent the fan 22 from malfunctioning and potentially causing the electric heating device 3 to overheat and create a safety hazard, a temperature protection switch 6 is installed between the mounting bracket 1 and the electric heating device 3. When the temperature of the temperature protection switch 6 exceeds 100°C, it triggers a physical shutdown, thereby disconnecting the electric heating device 3 from continued heating and providing protection. The temperature switch is a physical shutdown. Based on the principle of thermal expansion and contraction, while thermal expansion and contraction are common to all objects, the degree of expansion and contraction varies from object to object. The two surfaces of the metal sheet 63 are conductors of different materials. Due to the varying degrees of expansion and contraction under varying temperatures, the metal sheet 63 bends. Upon contacting the push rod 64, the push rod 64 moves toward the lower cavity 622, causing it to abut against the flexible member 65, separating the first contact 66 from the second contact 67, thereby protecting the circuit.

[0033] Furthermore, the temperature sensor 4 includes an intra-cavity temperature sensor and a heating plate temperature sensor, and both the intra-cavity temperature sensor and the heating plate temperature sensor are electrically connected to the temperature control unit 5 .

[0034] The temperature control unit 5 includes a single-chip microcomputer, and a heating control circuit 7, a fan control circuit 8, a first temperature control circuit 9 and a second temperature control circuit 10 arranged on the single-chip microcomputer. The heating control circuit 7 includes a photoelectric coupler U32, a resistor R108, a resistor R96, a MOS transistor Q2 and a capacitor C45. Port 1 of the photoelectric coupler U32 is connected in series with the resistor R108, the other end of the resistor R108 is connected to a 3.3V power supply, port 2 of the photoelectric coupler U32 is used to input a heating control signal, port 15 of the photoelectric coupler U32 is grounded, port 16 of the photoelectric coupler U32 is respectively connected to the resistor R96 and port G of the MOS transistor Q2, the other end of the resistor R96 and port S of the MOS transistor Q2 are both connected to a 12V power supply, port D of the MOS transistor Q2 is respectively connected to the capacitor C45 and socket port 1 on the electric heating device 3, and the other end of the capacitor C45 and socket port 2 on the electric heating device 3 are both grounded;

[0035] The fan control circuit 8 includes a photocoupler U34, a resistor R117, a resistor R118, a MOS transistor Q3 and a capacitor C104. Port 3 of the photocoupler U34 is connected in series with the resistor R118, and the other end of the resistor R118 is connected to a 3.3V power supply. Port 4 of the photocoupler U34 is used to output a fan 22 control signal. Port 13 of the photocoupler U34 is grounded. Port 14 of the photocoupler U34 is connected to the resistor R117 and port G of the MOS transistor Q3 respectively. The other end of the resistor R117 is grounded. Port D of the MOS transistor Q3 is connected to the socket port 1 on the temperature-controlled air outlet 2. Port S of the MOS transistor Q3 is connected to a 12V power supply and the capacitor C104 respectively. The capacitor C104 and the socket port 2 on the temperature-controlled air outlet 2 are both grounded.

[0036] The first temperature control circuit 9 includes a resistor R113 and a resistor R114, a port 1 of the connection socket of the heater plate temperature sensor is grounded, a port 2 of the connection socket of the heater plate temperature sensor is connected to the resistor R113 and the resistor R114 respectively, and the other end of the resistor R113 and the port 3 of the connection socket of the heater plate temperature sensor 4 are both connected to a 3.3V power supply;

[0037] The second temperature control circuit 10 includes a resistor R115 and a resistor R116. Port 1 of the connection socket of the intra-cavity temperature sensor is grounded, and port 2 of the connection socket of the intra-cavity temperature sensor is connected to the resistor R115 and the resistor R116 respectively. The other end of the resistor R116 and port 3 of the connection socket of the intra-cavity temperature sensor are both connected to a 3.3V power supply.

[0038] In this embodiment, the heating plate temperature sensor is used to detect the temperature of the heating plate 32 and transmit the data to the temperature control unit 5 to control the heating plate 32 to prevent overheating and causing the temperature protection switch 6 to shut down, which would affect control stability. The cavity temperature sensor is used to detect the temperature of the fan 22. The temperature control unit 5 includes a single-chip microcomputer, as well as a heating control circuit 7, a fan control circuit 8, a first temperature control circuit 9, and a second temperature control circuit 10 provided on the single-chip microcomputer. The model of the photocoupler U32 and the model of the photocoupler U34 are TLP281 photocouplers, the model of the MOS transistor Q2 is IRFR5305, and the model of the MOS transistor Q3 is LSI1013LT1G. Through the cooperation of the heating control circuit 7, the fan control circuit 8, the first temperature control circuit 9, and the second temperature control circuit 10 on the single-chip microcomputer, the single-chip microcomputer can read the measured temperature of the cavity temperature sensor 4 and adjust the heating time ratio of the heating plate 32 according to the difference between the cavity temperature and the target adjustment temperature to maintain the temperature at the set target temperature. The fan 22 has two functions: blowing out hot air from the heating plate 32 and blowing in low-temperature air when the heating plate 32 is turned off.

[0039] In summary, the present invention can provide a temperature control module suitable for a small urine analyzer. The module is compact and can be widely compatible with small urine analyzers to ensure that the urine analyzer can perform normal testing and output accurate results in a low-temperature environment.

[0040] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of the rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made in accordance with the claims of the present invention are still within the scope of the invention.

Claims

1. A temperature control module suitable for a small urine analyzer, characterized in that: The utility model comprises a mounting frame, a temperature-controlled air outlet, an electric heating device, a temperature sensor and a temperature control unit, wherein the temperature-controlled air outlet is detachably connected to the mounting frame and is placed on the back of the mounting frame, the electric heating device is detachably connected to the mounting frame and is located inside the mounting frame and close to the temperature-controlled air outlet, the temperature sensor is arranged inside the mounting frame, the electric heating device comprises an electric heating module bracket, a heating plate and a thermistor, the electric heating module bracket is detachably connected to the mounting frame, the heating plate is fixedly connected to the electric heating module bracket and is located inside the electric heating module bracket, the thermistor is attached to the heating plate, and the temperature control unit is electrically connected to the temperature-controlled air outlet, the temperature sensor and the heating plate respectively; The temperature-controlled air outlet comprises a temperature-controlled bracket and a fan, wherein the temperature-controlled bracket is fixedly connected to the mounting frame, and the number of the fans is at least two and they are arranged on the temperature-controlled bracket at equal distances; The temperature sensor includes an intracavity temperature sensor and a heating plate temperature sensor, and both the intracavity temperature sensor and the heating plate temperature sensor are electrically connected to the temperature control unit; the heating plate temperature sensor is used to detect the temperature of the heating plate; the intracavity temperature sensor is used to detect the temperature blown out by the fan; The temperature control unit includes a single-chip microcomputer, and a heating control circuit, a fan control circuit, a first temperature control circuit, and a second temperature control circuit arranged on the single-chip microcomputer. When the heating plate is powered on, it generates heat to increase its own temperature. The temperature-controlled air outlet member is activated to blow high-temperature air in the mounting frame onto the cavity temperature sensor. The heating control circuit, the fan control circuit, the first temperature control circuit, and the second temperature control circuit on the single-chip microcomputer cooperate with each other to read the measured temperature of the cavity temperature sensor using the single-chip microcomputer. According to the difference between the cavity temperature and the target adjustment temperature, the heating time ratio of the heating plate is adjusted to maintain the temperature at the set target temperature. The first temperature control circuit includes a resistor R113 and a resistor R114, a port 1 of the connection socket of the heater plate temperature sensor is grounded, a port 2 of the connection socket of the heater plate temperature sensor is connected to the resistor R113 and the resistor R114 respectively, and the other end of the resistor R113 and the port 3 of the connection socket of the heater plate temperature sensor are both connected to a 3.3V power supply; The second temperature control circuit includes a resistor R115 and a resistor R116, port 1 of the connection socket of the intra-cavity temperature sensor is grounded, port 2 of the connection socket of the intra-cavity temperature sensor is connected to the resistor R115 and the resistor R116 respectively, and the other end of the resistor R116 and port 3 of the connection socket of the intra-cavity temperature sensor are both connected to a 3.3V power supply.

2. The temperature control module for a small urine analyzer according to claim 1, characterized in that: The temperature control module suitable for the small urine analyzer also includes a temperature protection switch, which is detachably connected to the temperature control bracket and is attached to the top of the electric heating module bracket.

3. The temperature control module for a small urine analyzer according to claim 2, characterized in that: The temperature protection switch includes a protective cover, a shell, a metal sheet, a push rod, a flexible member, a first contact and a second contact. The shell has an upper cavity and a lower cavity. Both ends of the metal sheet are fixedly connected to the shell and are located in the upper cavity. The metal sheet is arranged in an arched structure. The top end of the metal sheet abuts against one end of the push rod, and the other end of the push rod is inserted into the lower cavity. The first contact is arranged in the lower cavity. One end of the flexible member is fixedly connected to the shell, and the other end of the flexible member is fixedly connected to the second contact, and the second contact is in contact with the first contact.

4. The temperature control module for a small urine analyzer according to claim 1, characterized in that: The heating control circuit includes a photocoupler U32, a resistor R108, a resistor R96, a MOS transistor Q2, and a capacitor C45. Port 1 of the photocoupler U32 is connected in series with the resistor R108, the other end of the resistor R108 is connected to a 3.3V power supply, port 2 of the photocoupler U32 is used to input a heating control signal, port 15 of the photocoupler U32 is grounded, port 16 of the photocoupler U32 is respectively connected to the resistor R96 and port G of the MOS transistor Q2, the other end of the resistor R96 and port S of the MOS transistor Q2 are both connected to a 12V power supply, port D of the MOS transistor Q2 is respectively connected to the capacitor C45 and socket port 1 on the electric heating device, and the other end of the capacitor C45 and socket port 2 on the electric heating device are both grounded; The fan control circuit includes a photoelectric coupler U34, a resistor R117, a resistor R118, a MOS tube Q3 and a capacitor C104. Port 3 of the photoelectric coupler U34 is connected in series with the resistor R118, and the other end of the resistor R118 is connected to a 3.3V power supply. Port 4 of the photoelectric coupler U34 is used to output a fan control signal. Port 13 of the photoelectric coupler U34 is grounded. Port 14 of the photoelectric coupler U34 is respectively connected to the resistor R117 and port G of the MOS tube Q3. The other end of the resistor R117 is grounded. Port D of the MOS tube Q3 is connected to the socket port 1 on the temperature-controlled air outlet component. Port S of the MOS tube Q3 is respectively connected to a 12V power supply and the capacitor C104. The capacitor C104 and the socket port 2 on the temperature-controlled air outlet component are both grounded.

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