Explosion-proof cover metal bath

Abstract

The utility model relates to the technical field of experimental equipment, in particular to a metal bath with an explosion-proof cover. Which comprises a lower heating module and is characterized by further comprising an upper cavity cover and a lower cavity cover arranged below the upper cavity cover, the lower heating module is arranged in a heating cavity formed by pressing the upper cavity cover and the lower cavity cover, and a turbofan with an outward wind direction is fixed at the bottom of the lower cavity cover. The turbofan is communicated with the formed heating cavity, a pneumatic door is arranged on an air channel on one side of the lower cavity cover, and the pneumatic door and the turbofan are matched with each other to achieve opening and closing. After heating is completed, the upper gland is opened, so that the PCR tube cover can be prevented from being exploded due to high temperature.

Description

Technical Field

[0001] The utility model relates to the technical field of experimental equipment, in particular to an explosion-proof cover metal bath. Background Art

[0002] The metal bath is controlled by a microcomputer and uses high-purity aluminum and graphene film as heat-conducting media to replace the traditional water bath device. It has the characteristics of exquisite appearance, easy use, high precision and small size. It can be widely used in sample preservation and reaction, DNA amplification and pre-denaturation of electrophoresis, serum coagulation, etc. The metal bath can be equipped with heating blocks of different apertures according to the size of the test tube to heat the test tube at a constant temperature. In order to make the temperature of the heat block uniform, it is necessary to use a combination of high-quality aluminum alloy materials and graphene film to ensure excellent thermal conductivity.

[0003] After the metal bath heating is finished, if the user opens the metal bath pressure cover too early, the PCR tube cover will often explode due to the high residual temperature inside the PCR tube and the high internal pressure. The aerosol generated may cause sample contamination.

[0004] Based on the above problems, there is an urgent need for a metal bath that can prevent the PCR tube cover from exploding due to high temperature when the pressure cover is opened after heating is completed. Utility Model Content

[0005] In view of the current situation that after the heating of the metal bath is completed, the internal RCR tube explodes due to the high temperature and excessive pressure inside the tube, the utility model provides an explosion-proof cover metal bath to solve the above problem.

[0006] In order to achieve the above purpose, the utility model is implemented through the following technical solutions:

[0007] An embodiment of the present application discloses an explosion-proof cover metal bath, comprising a lower heating module, an upper cavity cover and a lower cavity cover arranged below the upper cavity cover, wherein the lower heating module is arranged in a heating cavity formed by pressing the upper cavity cover and the lower cavity cover together, a turbofan with wind direction facing outward is fixed to the bottom of the lower cavity cover, the turbofan is connected to the formed heating cavity, a pneumatic door is arranged in the air duct on one side of the lower cavity cover, and the pneumatic door cooperates with the turbofan to realize opening and closing.

[0008] Optionally, a host computer is also included, which is a touch serial port screen for setting the temperature switch of the upper heat cover, the metal bath temperature and the insulation time.

[0009] Optionally, a lower computer is also included, and the lower computer is used to receive control information from the upper computer and feed back the temperature status of the lower heating module and the upper heat cover to display an error prompt message.

[0010] Optionally, the upper computer and the lower computer are connected and communicate with each other via an RS232 module.

[0011] Optionally, it further includes an upper heating module and a lower heating module, wherein the upper heating module is arranged above the upper cavity cover, and the lower heating module is arranged inside the heating cavity.

[0012] Optionally, the upper heating module includes: a first thermal insulation pad, a first heating film, a first graphene film and a first heat conducting plate stacked in sequence.

[0013] Optionally, the lower heating module includes: a second heat conducting plate, a second graphene film, a second heating film, a second thermal insulation pad and a thermal insulation hard plate stacked in sequence.

[0014] Optionally, an upper heat cover is also included, which includes an upper heat shell cover, a spring arranged below the upper heat shell cover, and a heating movable block and a heating module arranged below the spring.

[0015] The beneficial effects of the utility model are:

[0016] For example, the original metal bath device does not have the function of heat dissipation. After the metal bath is heated, opening the upper heating cover too early can easily cause the RCR tube to burst. If a heat dissipation hole is set, it is easy to cause heat loss during the heating process, affecting the heating effect. The device provided by the present device provides power to the turbo fan after the heating is completed, so that the air flow rate in the heating chamber of the metal bath equipment is accelerated, and a relatively small air pressure is formed inside the heating chamber. Therefore, the larger external air pressure opens the pneumatic door on one side of the metal bath equipment, so that the hot air inside the metal bath equipment is quickly discharged to the outside, thereby achieving a rapid heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 This is a schematic diagram of the cross-sectional structure of the explosion-proof cover metal bath of this application;

[0019] Figure 2 This is a schematic diagram of the explosion structure of the explosion-proof cover metal bath of this application;

[0020] Figure 3 This is a schematic diagram of the overall structure of the explosion-proof cover metal bath of this application;

[0021] Figure 4 This is a schematic diagram of the heating module structure under this application;

[0022] Figure 5 Block diagram of explosion proof cover metal bath circuit connections for this application.

[0023] In the figure:

[0024] 1. Lower heating module; 2. Upper cavity cover; 3. Lower cavity cover; 4. Turbofan; 5. Pneumatic door; 6. Upper computer; 7. Lower computer; 8. RS232 module; 9. Upper heating module; 10. Heating movable block; 11. First thermal insulation pad; 12. First heating film; 13. First graphene film; 14. First heat conduction plate; 15. Second heat conduction plate; 16. Second graphene film; 17. Second heating film; 18. Second thermal insulation pad; 19. Insulation hard plate; 20. Upper thermal cover; 21. Upper thermal shell cover; 22. Spring. DETAILED DESCRIPTION

[0025] In the following description, specific details such as specific system structures, technologies, etc. are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present application. However, it should be clear to those skilled in the art that the present application may also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from obstructing the description of the present application.

[0026] It should be understood that when used in the present specification and the appended claims, the term "comprising" indicates the presence of described features, wholes, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or combinations thereof.

[0027] See also Figure 1-Figure 5, like the original metal bath device, the internal sealing setting is used for heating, mainly to prevent heat loss during the heating process. However, after the heating is completed, the heat loss is slow. The pressure generated inside the PCR tube cover due to the high temperature is relatively large. Once the pressure cover of the metal bath device is opened, it is easy to cause the PCR tube to explode. However, the heat dissipation effect is not good through contact heat conduction, and it takes a long time to open the pressure cover. Based on the above problems, the embodiment of the present application discloses an explosion-proof cover metal bath, in the original lower heating module 1, it also includes an upper cavity cover 2 and a lower cavity cover 3 arranged below the upper cavity cover 2, the lower heating module 1 is arranged in a heating cavity formed by pressing the upper cavity cover 2 and the lower cavity cover 3 together, a turbo fan 4 with an outward wind direction is fixed to the bottom of the lower cavity cover 3, the turbo fan 4 is connected to the formed heating cavity, and a pneumatic door 5 is arranged in the air duct on one side of the lower cavity cover 3, and the pneumatic door 5 cooperates with the turbo fan 4 to realize opening and closing. The device is provided with a turbo fan 4 with the wind direction facing outward at the bottom of the lower chamber cover 3. When rapid cooling is required, the air inside the heating chamber can be circulated with the outside. The working principle of the turbine forms a relatively small relative air pressure inside the heating chamber, and the larger air pressure outside opens the pneumatic door 5 to achieve rapid heat dissipation. It is worth mentioning that the design of the device can achieve that when internal heating is required, the internal space remains sealed, and the air inside the heating chamber forms a heat-insulating space, and when heat dissipation is required, the air outlet door and the turbo fan 4 work together to help dissipate heat.

[0028] The device also includes a host computer 6, which is a touch serial port screen for setting the metal bath temperature, the switch of the upper heat cover 20 and the insulation time. The setting of the host computer 6 can provide a more intuitive operation interface for the experimenter. Through the operation interface, the experimenter only needs to manually press the touch screen to control the required temperature of the metal bath, the required insulation time, and when to switch on and off. It is worth mentioning that the host computer 6 is designed with a "quick mode" function. After the user pre-sets the quick temperature and time, it can quickly enter the working state, eliminating the need to change the temperature and time during the experiment and frequently set the temperature.

[0029] It also includes a lower computer 7, which can be a single-chip microcomputer and some detection modules. The lower computer 7 is used to receive control information from the upper computer 6, feedback the temperature status of the heating and the upper cavity cover 2, and display error prompt information.

[0030] The upper computer 6 and the lower computer 7 are connected for communication via the RS232 module 8. When the experimenter transmits the corresponding control command to the lower computer 7 via the control screen on the upper computer 6, and the lower computer 7 controls and executes the command, communication can be performed via the RS232 module 8. At the same time, the temperature of the lower heating module 1 and the upper heat cover 20 detected by the corresponding detection module of the lower computer 7 and the error prompts of the experimental process can also be transmitted from the lower computer 7 to the upper computer 6 via the RS232 module 8 and provided to the experimenter.

[0031] It also includes an upper heating module 9 and a lower heating module 1. The upper heating module 9 is arranged above the upper cavity cover 2, and the lower heating module 1 is arranged inside the heating cavity.

[0032] The upper heating module 9 includes: a first thermal insulation pad 11 , a first heating film 12 , a first graphene film 13 and a first heat conducting plate 14 which are stacked in sequence.

[0033] The lower heating module 1 comprises: a second heat conducting plate 15 , a second graphene film 16 , a second heating film 17 , a second heat insulating pad 18 and a heat insulating hard plate 19 which are stacked in sequence.

[0034] It also includes an upper heat cover 20 , which includes an upper heat shell cover 21 , a spring 22 arranged below the upper heat shell cover 21 , and a heating movable block 10 and an upper heating module 9 arranged below the spring 22 .

[0035] After the upper thermal cover 20 is assembled, the spring 22 can provide a reverse force between the upper thermal cover 20 and the lower heating module 1 to assist the upper thermal cover 20 in bouncing up.

[0036] The first graphene film 13 and the second graphene film 16 mentioned above can better conduct heat, and the first insulation pad 11, the second insulation pad 18 and the insulation hard plate 19 can prevent the heat generated by the upper heating module 9 and the lower heating module 1 from dissipating in other directions, thereby preventing other equipment from overheating and affecting its service life.

[0037] Unless otherwise specified, the device components involved in the above embodiments are all conventional device components, and the connection methods and control methods involved are all conventional connection methods and control methods unless otherwise specified.

[0038] The present invention has been described in detail above in conjunction with the embodiments. However, those skilled in the art will appreciate that, without departing from the spirit of the present invention, the specific parameters in the embodiments described above may be changed to form a plurality of specific embodiments, which are all within the common variation range of the present invention and will not be described in detail herein.

Claims

1. An explosion-proof cover metal bath, comprising a lower heating module (1), characterized in that: The invention also comprises an upper chamber cover (2) and a lower chamber cover (3) arranged below the upper chamber cover (2); the lower heating module (1) is arranged in a heating chamber formed by pressing the upper chamber cover (2) and the lower chamber cover (3) together; a turbofan (4) with wind direction facing outward is fixed to the bottom of the lower chamber cover (3); the turbofan (4) is connected to the formed heating chamber; a pneumatic door (5) is arranged in an air duct on one side of the lower chamber cover (3); the pneumatic door (5) cooperates with the turbofan (4) to realize opening and closing.

2. The explosion-proof cover metal bath according to claim 1, characterized in that: It also includes a host computer (6), which is a touch serial port screen and is used to set the temperature switch of the upper heat cover (20), the metal bath temperature and the heat preservation time.

3. The explosion-proof cover metal bath according to claim 2, characterized in that: It also comprises a lower computer (7), the lower computer (7) being used to receive control information from the upper computer (6) and to feed back the temperature status of the lower heating module (1) and the upper heating cover (20) to display error prompt information.

4. The explosion-proof cover metal bath according to claim 3, characterized in that: The upper computer (6) and the lower computer (7) are connected and communicate with each other via an RS232 module (8).

5. The explosion-proof cover metal bath according to claim 1, characterized in that: It also comprises an upper heating module (9), wherein the upper heating module (9) is arranged above the upper chamber cover (2), and the lower heating module (1) is arranged inside the heating chamber.

6. The explosion-proof cover metal bath according to claim 5, characterized in that: The upper heating module (9) comprises: a first thermal insulation pad (11), a first heating film (12), a first graphene film (13), and a first heat conducting plate (14) which are stacked in sequence.

7. The explosion-proof cover metal bath according to claim 5, characterized in that: The lower heating module (1) comprises: a second heat conducting plate (15), a second graphene film (16), a second heating film (17), a second heat insulating pad (18) and a heat insulating hard plate (19) which are stacked in sequence.

8. The explosion-proof cover metal bath according to claim 5, characterized in that: It also comprises an upper heat cover (20), wherein the upper heat cover (20) comprises an upper heat shell cover (21), a spring (22) arranged below the upper heat shell cover (21), and a heating movable block (10) and an upper heating module (9) arranged below the spring (22).

Images