Portable constant-temperature heating device

Abstract

The utility model relates to a portable constant-temperature heating device, and belongs to the technical field of heating equipment. Comprising a shell, a heating unit, a temperature sensor and a positioning plate, a heating cavity is formed in the shell, and a heating unit is arranged at the inner bottom of the heating cavity; the heating unit comprises a plurality of heating elements and a heat conducting plate; the heating elements are uniformly distributed on the bottom surface of the heat conducting plate; a positioning plate capable of moving up and down is arranged in the heating cavity, positioning holes are evenly distributed in the positioning plate, and the temperature sensor is arranged on the side wall of the heating cavity and electrically connected with the control unit. The control unit is fixed in the shell and is electrically connected with the power supply module; the power module is arranged at the bottom of the shell. According to the utility model, the power supply module is arranged in the shell and is used for providing energy for the device, so that the use convenience of the device is improved; and moreover, the positioning plate capable of moving up and down is arranged in the heating cavity, so that when the device heats the heated objects with different heights, the positioning plate can stably support and position the heated objects.

Description

TECHNICAL FIELD

[0001] The utility model relates to heating equipment technical field especially relates to a portable constant temperature heating device. BACKGROUND

[0002] The specific steps of the double-layer plate method are as follows: first, pour the bottom solid culture medium into a culture dish, then pour the semi-solid culture medium containing host bacteria and a certain dilution degree of bacteriophages after solidification. After a period of cultivation, the number of plaques is calculated; wherein, the semi-solid culture medium needs to be heated to a transparent liquid and then cooled to about 50 degrees Celsius for standby. In the experiment, a small constant temperature heating device that can measure and maintain temperature and can be used in a biological safety cabinet is needed. It ensures the accuracy of the experiment, is convenient to operate, and protects the safety of the experimenters.

[0003] The existing heating device can mostly only use 220V power supply for power supply, which is inconvenient to use. UTILITY MODEL CONTENTS

[0004] To solve or partially solve the problems in the related art, the utility model provides a portable constant temperature heating device, aiming to improve the use convenience of the heating device.

[0005] A portable constant temperature heating device, comprising a shell, a heating unit, a temperature sensor, a positioning plate;

[0006] The shell is provided with a heating cavity, and the inner bottom of the heating cavity is provided with a heating unit; the heating unit comprises a plurality of heating elements and a heat conducting plate, and the heat conducting plate serves as the bottom of the heating cavity, and the heating elements are uniformly distributed on the bottom surface of the heat conducting plate;

[0007] The positioning plate is movably arranged in the heating cavity, and the positioning plate is uniformly provided with positioning holes; mounting holes are uniformly and interval ly arranged on the circumferential surface of the positioning plate; a positioning rod and a spring are sequentially arranged in the mounting hole from the outside to the inside; a handle movably arranged on the middle part of the positioning plate, the handle is connected with the positioning rod through a pull rope; a groove matched with the positioning rod is arranged on the inner side wall of the heating cavity, and the grooves are interval ly arranged along the vertical direction;

[0008] The temperature sensor is arranged on the side wall of the heating cavity and electrically connected with the control unit; the control unit is fixed in the shell and electrically connected with the power module; the power module is arranged at the bottom of the shell and comprises a battery and a charging interface.

[0009] In some schemes, the heating element is a ceramic heating sheet.

[0010] In some schemes, the thickness of the heat conducting plate is 1mm to 2mm.

[0011] In some schemes, a heat-conducting glue is arranged between the heating element and the heat-conducting plate, and the heat-conducting glue is heat-conducting silicone grease.

[0012] In some schemes, the temperature sensor is a thermocouple, and the temperature sensor is electrically connected to the control unit through a wire, and the wire is a shielded wire.

[0013] In some schemes, the control unit comprises a single-chip microcomputer and a temperature control circuit, and the single-chip microcomputer controls the power of the heating element through the temperature control circuit.

[0014] In some schemes, the outer side of the shell is provided with a display screen and operation buttons, the display screen is a liquid crystal display screen, and the operation buttons comprise a start button, a stop button and a temperature adjustment button.

[0015] The technical scheme provided by the utility model can have the following beneficial effects:

[0016] The utility model discloses a power module is arranged in the shell, and the power module provides energy for the device, thereby improving the use convenience of the device, and further, the positioning plate that can move up and down is arranged in the heating cavity, so that the positioning plate can stably support and position the heating object of different heights when the device heats the heating object.

[0017] It should be understood that the foregoing general description and the following detailed description are only exemplary and explanatory, and cannot limit the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0018] The above and other objects, features and advantages of the utility model will become more apparent from the following detailed description of exemplary embodiments of the utility model, taken in conjunction with the accompanying drawings, in which like reference characters commonly refer to the same or similar elements throughout the drawings.

[0019] Figure 1 It is a structure schematic view of the heating device shown in the utility model embodiment;

[0020] Figure 2 It is a structure schematic view of the positioning plate of the heating device shown in the utility model embodiment;

[0021] Figure 3 It is another structure schematic view of the heating device shown in the utility model embodiment;

[0022] Figure 4 It is another structure schematic view of the positioning plate of the heating device shown in the utility model embodiment;

[0023] Reference signs:

[0024] 1, shell; 11, heating cavity; 12, groove; 2, heating unit; 21, heating element; 22, heat conduction plate; 3, temperature sensor; 4, positioning plate; 41, positioning hole; 42, positioning rod; 43, spring; 44, handle; 45, pull rope; 5, control unit; 6, power module; 61, battery; 62, charging interface; 7, display screen; 8, operation button. DETAILED DESCRIPTION

[0025] The present application will be further described in detail below with reference to the accompanying drawings and specific examples, but the scope of protection of the present application is not limited to the content described.

[0026] Please refer to Figure 1 , Figure 2 and Figure 3 , the present application provides a kind of portable constant temperature heating device, including shell 1, heating unit 2, temperature sensor 3, positioning plate 4;Shell 1 is hollow cylindrical, top open setting, the heating cavity 11 is equipped in the shell 1, the inner bottom of the heating cavity 11 is equipped with heating unit 2;The heating unit 2 includes multiple heating elements 21 and heat conduction plate 22, and the heat conduction plate 22 as the bottom of the heating cavity 11, the heating element 21 is evenly distributed in the bottom surface of heat conduction plate 22;Thus, when working, through the synchronous operation of multiple heating elements 21, the multiple points of heat conduction plate 22 are heated simultaneously, so that the temperature of each position of heat conduction plate 22 can be synchronously and stably increased, and then the heating uniformity of heat conduction plate 22 is improved.

[0027] The heating cavity 11 is provided with a positioning plate 4 which can move up and down, the positioning plate 4 is uniformly provided with positioning holes 41, and the circumferential surface of the positioning plate 4 is uniformly and spacedly provided with mounting holes; the mounting holes are sequentially provided with positioning rods 42 and springs 43 from the outside to the inside; the middle part of the positioning plate 4 is provided with a handle 44 which can move up and down, the handle 44 is connected with the positioning rods 42 through a pull rope 45; the inner side wall of the heating cavity 11 is provided with grooves 12 which are used in cooperation with the positioning rods 42, and the grooves 12 are spacedly arranged along the vertical direction; in use, the positioning plate 4 is placed in the heating cavity 11, and the positioning rods 42 are inserted into the grooves 12, so as to fix the position of the positioning plate 4 in the heating cavity 11; when the semi-solid culture medium is heated, water is placed in the heating cavity 11, the semi-solid culture medium is placed in a test tube or a reagent bottle, the lower end of the test tube is placed in the heating cavity 11 after penetrating through the positioning hole 41, so as to perform water bath heating on the culture medium; when the length of the placed test tube is different, the handle 44 can be pressed downward or lifted upward, the handle 44 pulls each positioning rod 42 to shrink inward through the pull rope 45, so that the positioning rod 42 is separated from the groove 12, so that the positioning plate 4 is separated from the heating cavity 11 and can move up and down, after being adjusted to a specified position, the handle 44 is released, the positioning rod 42 is again extended outward under the action of the spring 43, and the end part of the positioning rod 42 is inserted into the groove 12, so as to fix the position of the positioning plate 4 again, thereby effectively improving the applicability of the device. At the same time, the positioning plate 4 can be directly taken out of the heating cavity 11, after the test tube is clamped in the positioning hole, the positioning plate 4 and the test tube are placed in the heating cavity 11 together, and the use is more convenient. The positioning plate 4 can also be taken out, and the reagent bottle in which the semi-solid is placed is placed in the heating cavity 11 to be directly water-bathed and heated.

[0028] The temperature sensor 3 is arranged on the side wall of the heating cavity 11 and is electrically connected with the control unit 5; the control unit 5 is fixed in the inside of the shell 1 and is electrically connected with the power module 6; the power module 6 is arranged at the bottom of the shell 1 and includes a battery 61 and a charging interface 62, and the power module 6 can also be directly connected with a power supply through the charging interface 62 to provide power for the device, so that the use is more convenient; the battery 61 is a lithium ion battery 61 and has high energy density and long service life; the charging interface 62 is arranged at the bottom of the shell 1 and can charge the battery 61; in use, the power module 6 provides energy for the device, the temperature sensor 3 detects the temperature in the heating cavity 11 and transmits relevant signals to the control unit 5, the control unit 5 controls the heating units 2 to work or stop according to the input signals, and continuously regulates the temperature in the heating cavity 11, so that the temperature in the heating cavity 11 can be maintained at a set temperature at all times.

[0029] In the embodiment, the heating element 21 is a ceramic heating sheet, a plurality of micropores are arranged on the ceramic heating sheet, the micropores are filled with a heat-conducting material, the heat-conducting material is graphene nanoparticles, and the heat-conducting efficiency can be improved.

[0030] In the embodiment, the thickness of the heat-conducting plate 22 is 1mm to 2mm.

[0031] In the embodiment, the heat-conducting glue is provided between the heating element 21 and the heat-conducting plate 22, which is heat-conducting silicone grease, and can improve the heat-conducting efficiency.

[0032] In the embodiment, the temperature sensor 3 is a thermocouple, and the temperature sensor 3 is electrically connected to the control unit 5 through a wire, which is a shielded wire, and can reduce electromagnetic interference, so as to improve the accuracy of signal transmission, and further improve the accuracy of temperature control of the device.

[0033] In the embodiment, the control unit 5 includes a single-chip microcomputer and a temperature control circuit, and the single-chip microcomputer controls the power of the heating element 21 through the temperature control circuit. The single-chip microcomputer controls the power of the heating element 21 through the temperature control circuit, so as to realize accurate temperature control. The control unit 5 further includes a storage module, which can store temperature data and control parameters, and is convenient for subsequent analysis and adjustment. The control unit 5 is further provided with a communication interface, which can exchange data with external equipment, so as to realize remote monitoring and control.

[0034] In the embodiment, the outer side of the shell 1 is provided with a display screen 7 and operation buttons 8, the display screen 7 is a liquid crystal display screen 7, and the operation buttons 8 include a start button, a stop button and a temperature adjustment button; the display screen 7 is a liquid crystal display screen 7, which can display the current temperature and the set temperature. The operation buttons 8 include a start button, a stop button and a temperature adjustment button, which can facilitate the user to operate. The display screen 7 and the operation buttons 8 are arranged on the front part of the shell 1, which is convenient for the user to view and operate.

[0035] In the embodiment, as shown in Figure 4 The positioning holes with different diameters are arranged on the positioning plate 4, such as setting the diameter of the positioning hole to 6.5cm and 10.5cm, so that the positioning plate 4 of the device can be used for multiple different specifications of test tubes at the same time, so as to improve the adaptability of the device.

[0036] The above has described the embodiments of the utility model, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those skilled in the art without departing from the scope and spirit of the described embodiments. The selection of the terms used herein is intended to best explain the principles, practical applications or improvements to the technology in the market of the embodiments, or to enable other ordinary skilled persons in the art to understand the embodiments disclosed herein.

Claims

1. A portable constant temperature heating device, characterized in that: Includes housing (1), heating unit (2), temperature sensor (3), and positioning plate (4); The housing (1) is provided with a heating cavity (11), and a heating unit (2) is provided at the bottom of the heating cavity (11); the heating unit (2) includes a plurality of heating elements (21) and a heat-conducting plate (22), and the heat-conducting plate (22) serves as the bottom of the heating cavity (11), and the heating elements (21) are evenly distributed on the bottom surface of the heat-conducting plate (22); The heating chamber (11) is provided with a positioning plate (4) that can move up and down. The positioning plate (4) has positioning holes (41) evenly distributed on it. The circumferential surface of the positioning plate (4) is provided with mounting holes evenly spaced. The mounting holes are provided with a positioning rod (42) and a spring (43) from the outside to the inside. The middle part of the positioning plate (4) is provided with a handle (44) that can move up and down. The handle (44) is connected to the positioning rod (42) by a pull rope (45). The inner side wall of the heating chamber (11) is provided with a groove (12) that cooperates with the positioning rod (42). The groove (12) is spaced along the vertical direction. The temperature sensor (3) is located on the side wall of the heating chamber (11) and is electrically connected to the control unit (5); the control unit (5) is fixed inside the housing (1) and is electrically connected to the power module (6); the power module (6) is located at the bottom of the housing (1) and includes a battery (61) and a charging interface (62).

2. The portable constant temperature heating device according to claim 1, characterized in that: The heating element (21) is a ceramic heating plate.

3. The portable constant temperature heating device according to claim 1, characterized in that: The thickness of the heat-conducting plate (22) is 1 mm to 2 mm.

4. A portable constant temperature heating device according to claim 1, characterized in that: A thermally conductive adhesive, which is thermally conductive silicone grease, is provided between the heating element (21) and the heat-conducting plate (22).

5. A portable constant temperature heating device according to claim 1, characterized in that: The temperature sensor (3) is a thermocouple, and the temperature sensor (3) is electrically connected to the control unit (5) through a wire, which is a shielded wire.

6. A portable constant temperature heating device according to claim 1, characterized in that: The control unit (5) includes a microcontroller and a temperature control circuit. The microcontroller controls the power of the heating element (21) through the temperature control circuit.

7. A portable constant temperature heating device according to claim 1, characterized in that: The outer side of the housing (1) is provided with a display screen (7) and operation buttons (8). The display screen (7) is a liquid crystal display screen (7), and the operation buttons (8) include a start button, a stop button and a temperature adjustment button.

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