Portable water temperature controller

Abstract

The utility model discloses a portable water temperature controller, which comprises a main body, a semiconductor chilling plate is arranged in the middle of the main body, a cold end and a hot end of the semiconductor chilling plate are respectively arranged on two sides of the main body, and a control panel corresponding to the semiconductor chilling plate is mounted on the side surface of the main body on the same side as the hot end of the semiconductor chilling plate. A cold guide plate is arranged at the cold end of the semiconductor chilling plate, and a plurality of cold guide columns are evenly arranged on the side surface of the cold guide plate. The semiconductor chilling plate is arranged on the circular or square main body, the cold guide plate and the cold guide column are arranged at the cold end of the semiconductor chilling plate, low temperature is conducted to the cold guide column, when the water temperature needs to be controlled to be reduced, the main body is buckled on a container, the cold guide column makes contact with water in the container, the container can be cooled, and low-temperature control over the water temperature is achieved. The water temperature controller is simple in overall structure, small in size, low in power consumption and easy to carry, rapid cooling can be achieved through semiconductor refrigeration, and the low-temperature control speed is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to temperature control device technical field, concretely is a portable water temperature controller. BACKGROUND

[0002] In the laboratory, accurate and rapid water temperature control is the key requirement of many experiments, such as biological sample preservation, chemical reaction temperature regulation, reagent precooling or microbial culture, etc. Although the traditional laboratory water temperature control equipment, especially the low temperature control equipment (such as circulating cooler or refrigeration type incubator), has high precision temperature control capability, it is bulky, high in power consumption, poor in mobility, and difficult to adapt to small capacity or non-standardized experimental containers (such as centrifuge tube, microcentrifuge tube, culture dish, etc.). Especially in temporary experimental site adjustment or field scientific research scene, the limitation of existing equipment is more prominent. Therefore, we propose a portable water temperature controller. SUMMARY

[0003] The technical problem to be solved by the utility model is to overcome the defects of the prior art, provide a portable water temperature controller, the overall structure of the water temperature controller is simple, small in size, low in power consumption, easy to carry, and can quickly cool down through semiconductor refrigeration, low temperature control speed is fast, suitable for a variety of small capacity or non-standardized experimental containers and temporary experimental site adjustment or field scientific research scene, and the problems in the background art can be effectively solved.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a portable water temperature controller, including the main part, the middle part of the main part is provided with semiconductor refrigerating fin, the cold end and the hot end of semiconductor refrigerating fin are arranged on the two sides of the main part, the side surface of the main part is provided with the control panel corresponding with semiconductor refrigerating fin on the same side with the hot end of semiconductor refrigerating fin, the cold end of semiconductor refrigerating fin is provided with the cold plate, and the side surface of the cold plate is uniformly provided with a plurality of cold columns.

[0005] As a preferred technical scheme of the utility model, the side surface of the main part is provided with a cooling fan, and the cooling fan is arranged on the side surface of the cooling fin.

[0006] As a preferred technical scheme of the utility model, the side surface of the main part is provided with a cooling fan, and the cooling fan is arranged on the side surface of the cooling fin.

[0007] As a preferred technical scheme of the utility model, at least one elastic fixing rope is arranged at the edge of one side of the side surface of the main part, a through groove corresponding to the elastic fixing rope is arranged at the edge of the other side of the side surface of the main part, and the end of the elastic fixing rope is connected with the adjusting buckle after penetrating through the through groove.

[0008] As a preferred technical scheme of the utility model, the side surface of the main body on the same side of the cold end of the semiconductor refrigeration piece is provided with a protective shell, and the protective shell is arranged outside the cold conducting plate and the cold conducting column.

[0009] As a preferred technical scheme of the utility model, the main body is internally provided with a built-in battery, the side surface of the main body is provided with a charging port corresponding to the built-in battery, and a dust cover is arranged at the charging port.

[0010] Compared with the prior art, the utility model has the beneficial effects that: the semiconductor refrigeration piece is arranged on a circular or square main body, the cold conducting plate and the cold conducting column are arranged at the cold end of the semiconductor refrigeration piece, low temperature is conducted to the cold conducting column, when it is needed to control the water temperature to be reduced, the main body is buckled on the container, the cold conducting column is in contact with the water in the container, the water temperature can be reduced, the low temperature control of the water temperature is realized, the water temperature controller has the advantages of simple overall structure, small size, low power consumption and easy carrying, the semiconductor refrigeration can quickly reduce the temperature, the low temperature control speed is fast, and the utility model can be applied to various small-capacity or non-standardized experimental containers and temporary experimental site adjustment or field scientific research scenes. BRIEF DESCRIPTION OF DRAWINGS

[0011] Fig. 1 It is a structural schematic view of the utility model;

[0012] Fig. 2 It is a structural schematic view of the utility model from the side;

[0013] Fig. 3 It is a structural schematic view of the utility model after being turned over and removing the protective shell.

[0014] In the drawing: 1 main body, 2 semiconductor refrigeration piece, 3 cold conducting plate, 4 cold conducting column, 5 heat dissipation shell, 6 heat dissipation fin, 7 heat dissipation fan, 8 control panel, 9 protective shell, 10 sealing gasket, 11 elastic fixing rope, 12 adjusting buckle, 13 dust cover. DETAILED DESCRIPTION

[0015] The technical scheme in the embodiments of the utility model will be clearly and completely described in combination with the drawings in the embodiments of the utility model. Apparently, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0016] Please refer to Figs. 1-3The utility model provides a technical scheme: a portable water temperature controller, including circular or square main body 1, the circular main body is suitable for cylindrical container (such as test tube, beaker), square main body adapts square container (such as culture dish, microplate). And the cross-sectional area of main body 1 is greater than the opening area of container, can cover the container mouth of the water temperature that needs low temperature control.

[0017] Main body 1 adopts high-strength aluminum alloy or engineering plastics (such as PC / ABS alloy) injection molding, has light weight and structural strength, improves the portability of whole.

[0018] The middle part of main body 1 is provided with semiconductor refrigerating sheet 2, and the cold end and the hot end of semiconductor refrigerating sheet 2 are arranged on the two sides of main body 1 respectively, semiconductor refrigerating sheet 2 can adopt high-power density TEC (such as TEC1-12706, maximum current 6A, voltage 12V), the lowest temperature of cold end can reach-15 DEG C, cooperates with cold lead column 4 and directly contacts liquid, and 100ml water can be cooled by 10 DEG C within 5 minutes. The side surface on the same side of main body 1 with the hot end of semiconductor refrigerating sheet 2 is provided with the control panel 8 corresponding with semiconductor refrigerating sheet 2, the cold end of semiconductor refrigerating sheet 2 is provided with cold lead plate 3, and the side surface of cold lead plate 3 is uniformly provided with a plurality of cold lead columns 4, and low temperature is conducted to cold lead column 4 by setting cold lead plate 3 and cold lead column 4 on the cold end of semiconductor refrigerating sheet 2, when needing to control water temperature to reduce, main body 1 is buckled on the container, makes cold lead column 4 contact with water in the container, can cool down, realizes the low temperature control of water temperature, and the whole structure of water temperature controller is simple, small in size, low in power consumption, easy to carry, and can be quickly cooled down by semiconductor refrigeration, and the low temperature control speed is fast, can be applicable to a variety of small capacity or non-standardized experimental containers and temporary experimental site adjustment or field scientific research scene.

[0019] Cold lead plate 3 and cold lead column 4 can adopt pure copper material, and the surface is plated with nickel to prevent oxidation, and the thermal conductivity is high. Cold lead column 4 is designed as a dense needle array (diameter 2mm, spacing 5mm), which maximizes the contact area (single column surface area about 15cm²), and improves the cooling rate.

[0020] Optionally, cold lead column 4 can be designed to be detachable, suitable for different container types (such as slender column for microcentrifuge tube, flat column for culture dish).

[0021] When used in a scene with high pollution prevention requirements, the cold lead column adopts medical-grade 316L stainless steel material, and a nano coating is applied to the surface to prevent biological residues.

[0022] The hot end of semiconductor refrigerating sheet 2 penetrates the side surface of main body 1, and the hot end of semiconductor refrigerating sheet 2 is sleeved with an aluminum alloy heat dissipation shell 5, the outer surface of heat dissipation shell 5 is uniformly provided with a plurality of heat dissipation fins 6 integrally formed with it, and the heat generated by the hot end of semiconductor refrigerating sheet 2 is discharged and dissipated through heat dissipation shell 5 and heat dissipation fins 6.

[0023] The inner side surface of the heat dissipation shell 5 and the hot end of the semiconductor refrigeration sheet 2 are uniformly coated with a heat-conducting silicone grease, which can fill the gaps therebetween and improve the heat dissipation effect.

[0024] Optionally, a temperature sensor can be arranged in one of the cold conducting columns 4, and a high-precision digital sensor (such as DS18B20 with a precision of ±0.5℃) is used, and the probe is embedded in the cold conducting column to directly contact the liquid to realize the function of automatically controlling the water temperature.

[0025] The control panel 8 is provided with buttons and controllers corresponding to the semiconductor refrigeration sheet 2, the temperature sensor and the heat dissipation fan 7, respectively. The controller can be a commonly used single-chip microcomputer or a PLC controller, such as an Arduino series single-chip microcomputer or a Siemens S7 series PLC controller. The control panel can be an integrated OLED touch screen, which supports temperature setting, mode switching (cooling / heating / constant temperature) and real-time temperature display.

[0026] In the preferred technical solution, the side surface of the main body 1 is provided with a heat dissipation fan 7, which is arranged on the side of the heat dissipation fin 6 and faces the narrow surface of the heat dissipation fin 6, so as to increase the air flow speed of the wide surface of the heat dissipation fin 6 and more quickly take away heat.

[0027] In the preferred technical solution, the side surface of the main body 1 on the same side as the cold end of the semiconductor refrigeration sheet 2 is provided with a sealing gasket 10 made of food-grade silicone that can withstand low temperature (-40℃). When the main body 1 is placed in the container opening, the container can be sealed by the sealing gasket 10 to reduce heat exchange and prevent pollution.

[0028] Optionally, a one-way pressure relief valve is further arranged on the main body 1 to prevent the negative pressure in the container from affecting the flow and cooling of the liquid.

[0029] In the preferred technical solution, at least one elastic fixing rope 11 is arranged at one side edge of the side surface of the main body 1, a through slot corresponding to the elastic fixing rope 11 is arranged at the other side edge of the side surface of the main body 1, and the end of the elastic fixing rope 11 is connected with an adjusting buckle 12 after passing through the through slot. After the main body 1 is placed in the container opening, the elastic fixing rope 11 can be operated to pass through the through slot and be fixed by the adjusting buckle 12 after passing around the bottom of the container, so as to press the main body 1 tightly on the container, which is more firmly fixed and convenient to operate.

[0030] The adjusting buckle 12 adopts a pig nose buckle commonly used in the prior art, and the elastic adjusting rope 11 can slide by pressing the button with a spring, and is clamped tightly after the button is released.

[0031] Preferably, the side surface of the main body 1 on the same side of the cold end of the semiconductor refrigeration piece 2 is provided with a protective shell 9 made of transparent PC material, which is arranged outside the cold conducting plate 3 and the cold conducting column 4 and covers the cold conducting plate 3 and the cold conducting column 4 when not in use, thereby preventing dust and dirt.

[0032] Optionally, the protective shell 9 can be provided with ultraviolet LED (wavelength 275nm) sterilization, which is suitable for sterile laboratory environment.

[0033] Preferably, the main body 1 is internally provided with a built-in battery, which can be a commonly used lithium polymer battery with high energy density, and the built-in battery can supply power to the controller, the control panel, the temperature sensor, the semiconductor refrigeration piece 2 and the cooling fan 7.

[0034] The controller, the temperature sensor, the semiconductor refrigeration piece 2 and the cooling fan 7 used in the application are all commonly used electronic components in the prior art, and their specific structure, working principle, control mode and circuit connection are all known technologies, which will not be described in detail here.

[0035] The side surface of the main body 1 is provided with a charging port corresponding to the built-in battery, which can be a Type-C type. A dust cover 13 is arranged at the charging port, which is a silicone flip cover with IP68 protection level and resistant to alcohol wiping disinfection.

[0036] The undisclosed parts in the utility model are all prior art, and their specific structure, materials and working principle will not be described in detail. Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A portable water temperature controller comprising a main body (1), characterised in that: The middle part of the main body (1) is provided with a semiconductor refrigeration sheet (2), the cold end and the hot end of the semiconductor refrigeration sheet (2) are arranged on the two sides of the main body (1) respectively, the side surface of the main body (1) on the same side as the hot end of the semiconductor refrigeration sheet (2) is provided with a control panel (8) corresponding to the semiconductor refrigeration sheet (2), the cold end of the semiconductor refrigeration sheet (2) is provided with a cold guide plate (3), and the side surface of the cold guide plate (3) is uniformly provided with a plurality of cold guide columns (4); the hot end of the semiconductor refrigeration sheet (2) penetrates through the side surface of the main body (1), and the hot end of the semiconductor refrigeration sheet (2) is sleeved with a heat dissipation shell (5) outside, and the outer side surface of the heat dissipation shell (5) is uniformly provided with a plurality of heat dissipation fins (6).

2. A portable water temperature controller according to claim 1, wherein: The side surface of the main body (1) is provided with a heat dissipation fan (7), and the heat dissipation fan (7) is arranged on the side of the heat dissipation fin (6).

3. The portable water temperature controller of claim 1, wherein: The side surface of the main body (1) on the same side as the cold end of the semiconductor refrigeration sheet (2) is provided with a sealing gasket (10).

4. The portable water temperature controller of claim 1, wherein: At least one elastic fixing rope (11) is arranged at the edge of one side of the side surface of the main body (1), a through slot corresponding to the elastic fixing rope (11) is formed at the edge of the other side of the side surface of the main body (1), and the end of the elastic fixing rope (11) is connected with an adjusting buckle (12) after penetrating through the through slot.

5. The portable water temperature controller of claim 1, wherein: The side surface of the main body (1) on the same side as the cold end of the semiconductor refrigeration sheet (2) is provided with a protective shell (9), and the protective shell (9) is arranged outside the cold guide plate (3) and the cold guide column (4).

6. The portable water temperature controller of claim 1, wherein: A built-in battery is arranged in the main body (1), a charging port corresponding to the built-in battery is arranged on the side surface of the main body (1), and a dustproof cover (13) is arranged at the charging port.

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