Medical electric heating constant temperature water tank

Abstract

The utility model discloses a kind of medical electric heating constant-temperature sink, including sink body, the sink body is by inner container, shell and the heat preservation layer filled between both are constituted, at least one group of electric heating plate is fixedly arranged in the inner container outer wall bottom, temperature sensor is fixedly arranged in the inner container side wall, microcontroller is fixedly arranged in the shell front panel, still include safety protection system, the safety protection system includes dry burning prevention component, temperature fuse and leakage protector, the utility model is fixed in the inner container side wall by setting dry burning prevention component from bottom 30mm place, can accurately monitor minimum water level, when water level is lower than this position, heating source can be cut off in time, avoid that heating plate works in water shortage state;While cooperating temperature fuse is attached to the surface of electric heating plate, when heating plate temperature is abnormally increased, it is fused rapidly, double protection mechanism effectively prevents equipment damage and safety accident caused by dry burning.

Description

Technical Field

[0001] This utility model relates to the technical field of constant temperature water bath devices, specifically a medical electric heating constant temperature water bath. Background Technology

[0002] In the medical field, medical electric thermostatic water baths, as devices capable of precisely controlling water temperature, are widely used in critical processes such as medical device sterilization, reagent preheating, and sample insulation. Through a stable temperature environment, they provide crucial assurance for the accuracy and safety of medical procedures, making them an indispensable basic piece of equipment in clinical testing, laboratory research, and routine medical care.

[0003] However, traditional medical electric thermostatic water baths still have many shortcomings in actual use. From the perspective of preventing dry burning, the dry burning protection mechanism of traditional thermostatic water baths is often inadequate. Some devices rely solely on simple temperature monitoring to determine whether dry burning has occurred. When the water level in the bath is lower than the heating element but has not reached the trigger temperature threshold, the heating element will continue to operate, which can easily lead to equipment damage due to localized overheating, or even cause fires and other safety accidents. In terms of heat loss, the insulation design of traditional thermostatic water baths is significantly inadequate. Most devices lack an effective insulation layer between the inner tank and the outer shell, causing a large amount of heat to be lost through conduction, convection, and radiation, resulting in large temperature fluctuations. Utility Model Content

[0004] (I) Technical Issues

[0005] This invention provides a medical electric heating constant temperature water bath to solve the problems of insufficient dry-burn protection and serious heat loss in traditional constant temperature water baths.

[0006] (II) Technical Content

[0007] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows: a medical electric heating constant temperature water bath, including a water bath body, the water bath body is composed of an inner tank, an outer shell and a heat insulation layer filled between the two, at least one set of electric heating plates is fixedly provided at the bottom of the outer wall of the inner tank, a temperature sensor is fixedly provided on the side wall of the inner tank, the temperature measuring end of the temperature sensor extends into the water in the inner tank, a microcontroller is fixedly provided on the front panel of the outer shell, the microcontroller is electrically connected to the temperature sensor and the electric heating plates; it also includes a safety protection system, the safety protection system includes an anti-dry burning component, a temperature fuse and a leakage current protector, the anti-dry burning component is fixedly provided at the lowest water level line on the side wall of the inner tank, the leakage current protector is integrated into the power input terminal, and the temperature fuse is attached to the surface of the electric heating plate.

[0008] Furthermore, the insulation layer is made of polyurethane foam material with a filling thickness of 20-50mm.

[0009] Furthermore, the temperature sensor is a PT100 platinum resistance thermometer.

[0010] Furthermore, the microcontroller includes a PID temperature control module and a digital display screen.

[0011] Furthermore, the anti-dry-burning component adopts a water level float switch, which is fixed to the inner tank side wall at a distance of 30mm from the bottom.

[0012] Furthermore, the top of the outer shell is hinged with an openable and closable heat-insulating cover.

[0013] (III) Technical Effects

[0014] Compared with existing technologies, this invention has the following advantages: By fixing an anti-dry-burning component to the inner tank side wall 30mm from the bottom, it can accurately monitor the minimum water level. When the water level is below this position, the heating source can be cut off in time, preventing the heating plate from operating in a water-deficient state. Simultaneously, a temperature fuse attached to the surface of the electric heating plate quickly melts when the heating plate temperature rises abnormally. This dual protection mechanism effectively prevents equipment damage and safety accidents caused by dry burning. Compared with traditional equipment that relies solely on simple temperature monitoring or low-sensitivity components, this invention offers more reliable safety protection. Using polyurethane foam as the insulation layer effectively blocks heat loss through conduction, convection, and radiation between the inner tank and the outer shell, reducing energy consumption and better maintaining the stability of the water temperature in the inner tank. Combined with the microcontroller's PID temperature regulation module, this significantly improves the accuracy of water temperature control, ensuring the effectiveness and reliability of medical operations. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of a medical electric heating constant temperature water bath according to this utility model. Figure One .

[0016] Figure 2 This is a three-dimensional structural diagram of a medical electric heating constant temperature water bath according to this utility model. Figure Two .

[0017] Figure 3 This is a schematic diagram of the main structure of a medical electric heating constant temperature water bath according to this utility model.

[0018] Figure 4 This is a schematic diagram of the cross-sectional structure of a medical electric heating constant temperature water bath according to this utility model.

[0019] As shown in the figure: 1. Water tank body; 2. Electric heating plate; 3. Temperature sensor; 4. Microcontroller; 5. Anti-dry burning component; 6. Leakage protection device; 7. Temperature fuse; 101. Inner tank; 102. Outer shell; 103. Insulation layer; 14. Insulation cover. Detailed Implementation

[0020] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "center", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation structure and operation. Therefore, they should not be construed as limitations on this utility model.

[0021] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "provided with," "installed," "connected," "linked," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0022] The present invention will now be described in further detail with reference to the accompanying drawings.

[0023] Combined with appendix Figure 1 To be continued Figure 4 A medical electric heating constant temperature water bath includes a water bath body 1, which is composed of an inner tank 101, an outer shell 102, and a heat insulation layer 103 filled between the two. At least one set of electric heating plates 2 are fixedly provided on the bottom of the outer wall of the inner tank 101. A temperature sensor 3 is fixedly provided on the side wall of the inner tank 101, and the temperature measuring end of the temperature sensor 3 extends into the water in the inner tank 101. A microcontroller 4 is fixedly provided on the front panel of the outer shell 102, and the microcontroller 4 is electrically connected to the temperature sensor 3 and the electric heating plates 2. The bath also includes a safety protection system, which includes an anti-dry burning component 5, a temperature fuse 7, and a leakage current protector 6. The anti-dry burning component 5 is fixedly provided at the lowest water level line on the side wall of the inner tank 101. The leakage current protector 6 is integrated into the power input terminal. The temperature fuse 7 is attached to the surface of the electric heating plate 2.

[0024] The insulation layer 103 is made of polyurethane foam with a filling thickness of 20-50mm. The temperature sensor 3 is a PT100 platinum resistance thermometer. The microcontroller 4 includes a PID temperature regulation module and a digital display screen. The anti-dry burning component 5 uses a water level float switch, which is fixed to the side wall of the inner tank 101 30mm from the bottom. The top of the outer shell 102 is hinged with an openable and closable insulation cover 104.

[0025] The working principle of this utility model is as follows: After the equipment is started, the power supply safety is first monitored by the leakage current protector 6 at the power input terminal. If leakage is detected, the leakage current protector 6 will immediately cut off the power supply to ensure electrical safety. When the equipment is powered normally, the user can set the target water temperature through the microcontroller 4 on the front panel of the outer shell 102, and the microcontroller 4 will then start working. The temperature sensor 3 on the side wall of the inner tank 101 monitors the temperature of the water in the inner tank 101 in real time and transmits the temperature signal to the microcontroller 4. The microcontroller 4 compares and analyzes the received temperature signal with the set target water temperature through its internal PID temperature regulation module: when the actual water temperature is lower than the target water temperature, the microcontroller 4 sends a heating command to the electric heating plate 2 at the bottom of the outer wall of the inner tank 101, and the electric heating plate 2 starts working to heat the water; when the actual water temperature reaches the target water temperature, the microcontroller 4 controls the electric heating plate 2 to stop heating, thereby achieving a constant water temperature. The digital display screen of the microcontroller 4 will display the current water temperature in real time for the user's convenience. During the operation of the equipment, the safety protection system works simultaneously. The anti-dry-burning component 5 at the lowest water level line on the side wall of the inner tank 101 constantly monitors the water level. When the water level is lower than the lowest water level line, the anti-dry-burning component 5 sends a signal to the microcontroller 4, which then cuts off the power to the electric heating plate 2 to prevent dry burning. If the electric heating plate 2 experiences abnormal overheating, the temperature fuse 7 attached to its surface will melt, forcibly cutting off the heating circuit and further avoiding the risk of dry burning. In addition, the polyurethane foam insulation layer 103 filling the space between the inner tank 101 and the outer shell 102 can effectively reduce heat loss, and the openable insulation cover 104 on the top of the outer shell 102 can also reduce heat exchange between the water and the outside when closed. The combination of these two elements reduces the start-stop frequency of the electric heating plate 2, improves the energy efficiency of the equipment, and ensures stable water temperature.

[0026] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A medical electric heating constant temperature water bath, comprising a water bath body (1), wherein the water bath body (1) is composed of an inner liner (101), an outer shell (102), and a heat insulation layer (103) filled between the two, characterized in that: At least one set of electric heating plates (2) is fixedly provided on the bottom of the outer wall of the inner tank (101), and a temperature sensor (3) is fixedly provided on the side wall of the inner tank (101). The temperature measuring end of the temperature sensor (3) extends into the water in the inner tank (101). A microcontroller (4) is fixedly provided on the front panel of the outer shell (102). The microcontroller (4) is electrically connected to the temperature sensor (3) and the electric heating plates (2). It also includes a safety protection system, which includes an anti-dry-burning component (5), a temperature fuse (7) and a leakage current protector (6). The anti-dry-burning component (5) is fixed at the lowest water level line on the side wall of the inner tank (101), the leakage current protector (6) is integrated into the power input terminal, and the temperature fuse (7) is attached to the surface of the electric heating plate (2).

2. The medical electric heating constant temperature water bath according to claim 1, characterized in that: The insulation layer (103) is made of polyurethane foam with a filling thickness of 20-50mm.

3. The medical electric heating constant temperature water bath according to claim 1, characterized in that: The temperature sensor (3) is a PT100 platinum resistance thermometer.

4. A medical electric heating constant temperature water bath according to claim 1, characterized in that: The microcontroller (4) includes a PID temperature control module and a digital display screen.

5. A medical electric heating constant temperature water bath according to claim 1, characterized in that: The anti-dry-burning component (5) adopts a water level float switch, which is fixed to the side wall of the inner tank (101) 30mm from the bottom.

6. A medical electric heating constant temperature water bath according to claim 1, characterized in that: The top of the outer shell (102) is hinged to an openable and closable heat-insulating cover (104).

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