Constant-temperature heating device

Abstract

The utility model discloses a constant-temperature heating device, which belongs to the field of heating equipment and comprises a heating box provided with more than one expansion channel interface. The cable is used for power transmission and signal transmission; and the expansion channel is connected to the expansion channel interface through a cable. The heating box provided by the utility model is provided with a plurality of expansion channel interfaces, and a proper number of expansion channels are inserted into the expansion channel interfaces as required, so that the requirement of multi-channel heating can be met, and the heating box has good heat dissipation performance. All the expansion channels are connected with the heating box through cables, electric power transmission and signal transmission are achieved, the structure is compact, unified management can be achieved, user operation is facilitated, and the nursing cost of an operator is greatly reduced.

Description

Technical Field

[0001] This utility model belongs to the technical field of heating equipment, specifically a constant temperature heating device. Background Technology

[0002] Existing single-channel heating devices cannot meet the demand for simultaneous heating of multiple samples or different reaction systems. When faced with batch experiments or multi-process parallel industrial production or medical operations, their efficiency is extremely low, requiring sequential heating of each sample or process step, consuming significant time and manpower. Some heating devices simply piece together multiple heating units, resulting in a dispersed and complex structure, cumbersome temperature control, and difficulty in unified management. This can severely impact patient experience during medical rinsing, the accuracy of experimental results, and the stability of product quality, especially in processes requiring extremely high temperature precision, such as medical rinsing, chemical synthesis, and enzymatic reactions. Utility Model Content

[0003] The purpose of this invention is to provide a constant temperature heating device to solve at least one of the problems mentioned in the background art.

[0004] This utility model provides a constant temperature heating device, comprising:

[0005] The heating chamber has one or more expansion channel interfaces;

[0006] Cables are used for power transmission and signal transmission;

[0007] The expansion channel is connected to the expansion channel interface via a cable.

[0008] A further embodiment: The heating box includes a box body and a box cover, with a box cover heating platform on the top of the box cover and a first sensor next to the box cover heating platform.

[0009] A further embodiment: The box is equipped with an inner liner, the bottom surface of the inner liner is equipped with an inner liner heating platform, a second sensor is provided next to the inner liner heating platform, and a heating unit is provided on the side wall of the inner liner.

[0010] A further embodiment: the lid is hinged to the box body on one side and has a snap fastener on the other side, and the box body has a snap fastener mating part corresponding to the snap fastener.

[0011] A further solution: The expansion channel is provided with a slot arranged along the axial direction, and one end of the expansion channel is provided with an adapter end for connecting cables, with the slot passing through the adapter end.

[0012] A further solution: The expansion channel is equipped with a heating element connected to the adapter terminal, and the expansion channel is also equipped with an over-temperature protection fuse, with one end of the over-temperature protection fuse connected to the adapter terminal and the other end connected to the heating element.

[0013] A further solution: The inner surface of the card slot is coated with a highly thermally conductive material.

[0014] A further solution: A third sensor is installed within the extended channel.

[0015] A further solution: The heating box is also equipped with a power interface, a leakage current protector and a button, and the leakage current protector and the button are respectively connected to the power interface.

[0016] Further solutions include intelligent temperature control systems.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] 1. The heating box of this utility model is equipped with multiple expansion channel interfaces. As needed, an appropriate number of expansion channels can be plugged into the expansion channel interfaces to meet the needs of multi-channel heating and have good heat dissipation performance.

[0019] 2. All expansion channels are connected to the heating box via cables to achieve power delivery and signal transmission. The structure is compact, enabling unified management, facilitating user operation, and greatly reducing operator monitoring costs.

[0020] 3. In addition to the inner heating platform inside the heating chamber, a transition zone is also provided on the top of the chamber lid for heating the object to be heated. The transition zone can also keep the temperature warm. Attached Figure Description

[0021] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0022] Figure 1 This is a schematic diagram of the structure of a preferred embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram (I) of the heating box in a preferred embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram (II) of the heating box in a preferred embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram of the structure of the extended channel in a preferred embodiment of the present invention;

[0026] Figure 5 This is a cross-sectional schematic diagram of the extended channel in a preferred embodiment of the present invention.

[0027] In the diagram: 1-Lid; 11-Lid heating platform; 12-First sensor; 13-Display screen; 14-Button; 15-Snap fastener; 2-Box body; 21-Button; 22-Extension channel interface; 23-Heating unit; 24-Power interface; 3-Inner liner; 31-Second sensor; 32-Inner liner heating platform; 4-Cable; 41-Plug; 5-Extension channel; 51-Adapter terminal; 52-Slot; 53-Heating element; 54-Over-temperature protection fuse; 55-Third sensor. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0029] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0030] In the description of this utility model, it should be understood that the use of terms such as "first" and "second" to define the components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this utility model.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0033] Please see Figure 1 As shown, this embodiment provides a constant temperature heating device, including:

[0034] The heating chamber has one or more expansion channel interfaces 22;

[0035] Cable 4 is used for power transmission and signal transmission;

[0036] Expansion channel 5 is connected to expansion channel interface 22 via cable 4.

[0037] The number of expansion channel interfaces 22 can be set according to actual needs, such as 4 channels, 6 channels, 8 channels, etc. Each expansion channel 5 can be used in a matrix configuration without interfering with each other, minimizing heat transfer interference between expansion channels 5 and ensuring the temperature independence and accuracy of each expansion channel 5. This meets the needs of multi-channel heating while also providing excellent heat dissipation performance. All expansion channels 5 are connected to the heating box via cables 4, which transmit power and signals, making the constant temperature heating device compact, enabling unified management, facilitating user operation, and significantly reducing operator monitoring costs.

[0038] In some embodiments, please refer to Figures 1-3As shown, the heating chamber includes a chamber body 2 and a lid 1. The chamber body 2 contains an inner liner 3, and the bottom surface of the inner liner 3 is equipped with an inner liner heating platform 32. A second sensor 31 is located next to the inner liner heating platform 32. Heating units 23 are located on the side walls of the inner liner 3. Objects to be heated can be placed on the inner liner heating platform 32 for heating. The heating units 23, in conjunction with the inner liner heating platform 32, provide a more uniform temperature field and improve heating efficiency. A lid heating platform 11 is located on the top of the lid 1, and a first sensor 12 is located next to the lid heating platform 11. The lid heating platform 11 can serve as both a heating point and a transition zone. When there are many objects to be heated, objects already heated to a preset temperature in the inner liner heating platform 32 can be removed from the inner liner 3 and placed on the lid heating platform 11 for heat preservation. New objects to be heated can then be placed inside the inner liner 3. If the temperature of an object placed on the lid heating platform 11 drops due to ambient temperature, the lid heating platform 11 can increase its power to reheat the object.

[0039] The enclosure 2 is made of high-temperature resistant and heat-insulating materials, such as plastics, aerospace aluminum alloys, and fiber composite materials, which can effectively prevent internal heat loss and avoid accidental burns to operators. The enclosure 2 is preferably designed as a cuboid shape, which facilitates installation and integration into various medical trolleys, laboratory workbenches, and production lines.

[0040] In some embodiments, please refer to Figures 1-3 As shown, the lid 1 is hinged to the body 2 on one side and has a snap 15 on the other side. The body 2 has a snap mating part corresponding to the snap 15, which can fasten the lid 1 to the body 2. The mating side of the lid 1 and the body 2 is provided with a sealing ring to reduce heat loss inside the inner liner 3.

[0041] In some embodiments, please refer to Figure 4 , Figure 5 As shown, the expansion channel 5 has a slot 52 arranged axially. One end of the expansion channel 5 has an adapter 51 for connecting cable 4, and the other end has a tail end. The slot 52 passes through the adapter 51 and the tail end. The expansion channel 5 has a heating element 53 connected to the adapter 51 inside. The object to be heated can be locked in the slot 52. The expansion channel 5 has a third sensor 55 inside. Each expansion channel 5 is equipped with an independent heating element 53. The heating element 53 can be a PTC thermistor, PI heating film, graphene heating film / sheet, alloy heating wire, etc., which can quickly and accurately stabilize the temperature in the channel near the set value, with a temperature control accuracy of ±1℃. The inner surface of the slot 52 is coated with a high thermal conductivity material, such as aluminum or graphene, which can quickly and evenly transfer the heat generated by the heating element 53 to the object to be heated in the expansion channel 5, avoiding local overheating and ensuring the uniformity of the temperature field in the entire expansion channel 5.

[0042] Furthermore, the expansion channel 5 is also equipped with an over-temperature protection fuse 54. One end of the over-temperature protection fuse 54 is connected to the adapter terminal 51, and the other end is connected to the heating element 53. When the temperature inside the expansion channel 5 rises sharply due to faults or other reasons and exceeds the rated temperature of the over-temperature protection fuse 54, the over-temperature protection fuse 54 will automatically melt, cutting off the power supply to the expansion channel 5 and preventing dangerous situations. The specific structure and working principle of the over-temperature protection fuse 54 are described in the prior art and will not be repeated here. Over-temperature protection fuses can also be connected to the power circuits of the inner liner heating platform 32, the heating unit 23, and the lid heating platform 11.

[0043] In some embodiments, please refer to Figures 1-3 As shown, the system also includes an intelligent temperature control system. This system includes a display screen 13 and buttons 14 mounted on the lid 1. The display screen 13 can display in real-time temperature data from the first sensor 12, the second sensor 31, and each of the third sensors 55, as well as the preset parameter adjustment process and current status information. The buttons 14 are used to operate and adjust the preset temperatures and timers for the lid heating platform 11, the inner liner heating platform 32, and the extension channel 5. The operation is simple, reducing user learning time and lowering the error rate. The specific structure and working principle of the intelligent temperature control system are described in existing technology and will not be elaborated here. It should be noted that the intelligent temperature control system can also use a touch screen for display and control, saving space on the buttons 14 and allowing for a larger touch screen area for clearer display of numbers.

[0044] The lid heating platform 11, the first sensor 12, the heating unit 23, the second sensor 31, the inner liner heating platform 32, the heating element 53, the over-temperature protection fuse 54, the third sensor 55, and the leakage current protector are all associated with the intelligent temperature control system.

[0045] The first sensor 12 includes a heated object detection sensor and a temperature sensor. The heated object detection sensor can identify whether there is an object to be heated on the lid heating platform 11 and feed it back to the intelligent temperature control system. The intelligent temperature control system controls whether the lid heating platform 11 is powered on and works based on the feedback result. The temperature sensor detects the temperature on the lid heating platform 11 in real time and feeds it back to the intelligent temperature control system. The intelligent temperature control system compares the temperature fed back by the temperature sensor with the preset temperature, thereby controlling whether the lid heating platform 11 works.

[0046] The second sensor 31 also includes a heated object detection sensor and a temperature sensor. The heated object detection sensor can identify whether there is an object to be heated placed on the inner liner heating platform 32 and feed it back to the intelligent temperature control system. The intelligent temperature control system controls whether the inner liner heating platform 32 and the heating unit 23 are powered on and put into operation based on the feedback result. The temperature sensor detects the temperature inside the inner liner 3 in real time and feeds it back to the intelligent temperature control system. The intelligent temperature control system compares the temperature fed back by the temperature sensor with the preset temperature, thereby controlling whether the inner liner heating platform 32 and the heating unit 23 are working.

[0047] The third sensor 55 also includes a heated object detection sensor and a temperature sensor. The heated object detection sensor can identify whether there is an object to be heated placed in the slot 52 and feed it back to the intelligent temperature control system. The intelligent temperature control system sends an electrical signal to the heating element 53 to control whether the heating element 53 is powered on and works, based on the feedback result. The temperature sensor detects the temperature in the slot 52 in real time and feeds it back to the intelligent temperature control system. The intelligent temperature control system compares the temperature fed back by the temperature sensor with the preset temperature, thereby controlling whether the heating element 53 works.

[0048] The main control chip of the intelligent temperature control system uses a high-performance microcontroller (such as the STM32 series), and the preset temperature and timer for each heating element can be set individually. When the detected temperature is lower than the set value, the heating power is increased; when the temperature is higher than the set value, the heating power is decreased, and this process is repeated iteratively to ensure that the temperature remains stable within the set constant temperature range. The control principle of the intelligent temperature control system for the lid heating platform 11, heating unit 23, inner liner heating platform 32, and heating element 53 is existing technology.

[0049] The heating box is also equipped with a power interface 24, a leakage current protector, and a button 21. The leakage current protector and button 21 are connected to the power interface 24. The power interface 24 can supply power to the entire heating device. The leakage current protector can use existing technology to provide leakage protection, monitor the leakage current of the circuit in real time, and immediately cut off the power to the entire heating device once leakage is detected, and feed back to the intelligent temperature control system. The intelligent temperature control system also includes an audible and visual alarm, which issues an alarm signal to remind the operator to troubleshoot and repair.

[0050] Usage process:

[0051] Connect the power cord to the power input interface, and plug in an appropriate number of expansion channels 5 according to the actual situation. The number of expansion channels 5 shall not exceed the number of expansion channel interfaces 22.

[0052] Press button 21 to start the device. The display screen 13 lights up and enters the initial interface, which displays the default temperature settings and current status information of each channel (such as on, standby, off, etc.). According to actual needs, the user enters the parameter setting page of the heating part and enters the status of each heating part, target heating temperature, initial time and end time of the scheduled heating, etc. After setting, click to confirm and save. The entire adjustment process can be displayed in real time on the display screen 13.

[0053] Place the item to be heated into the corresponding heating element, ensuring it is stable and in full contact with the heat-conducting medium to guarantee the heating effect.

[0054] Returning to the main interface, the device begins operation. The intelligent temperature control system monitors the temperature of each heating position in real time. Each heating element automatically adjusts its power according to the instructions of the main control chip, initiating constant-temperature heating of the item to be heated. The display screen updates the temperature values ​​of each channel and the scheduled heating time in real time for easy user monitoring. During heating, if the heating position has not reached the set temperature, the heating icon on the screen displays red; once the set temperature is reached, the heating icon displays gray. When the set heating time is reached, the device automatically stops heating and enters heat preservation mode. If the temperature deviates from the set value, heating automatically resumes. This cycle repeats. The color control of the heating icon on the screen is determined by the main control chip based on the comparison between the temperature feedback from the sensors and the target heating temperature. The color of the heating icon is not strictly limited; other colors can be selected.

[0055] This invention achieves independent and precise temperature control of multiple heating elements, improving heating efficiency and reducing energy consumption. It also boasts excellent heat dissipation and a user-friendly operating experience, making it suitable for various scenarios requiring precise temperature control, such as medical supplies, medical treatment, chemical experiments, biological sample processing, and industrial material preparation. Each heating element can stably maintain a set constant temperature, which improves the patient experience during medical rinsing processes where high temperature accuracy is required, ensures the accuracy of experimental results in chemical synthesis processes, and guarantees the stability of product quality in biological enzymatic reactions. It also significantly improves heat dissipation management, energy consumption control, and ease of operation.

[0056] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of this utility model.

Claims

1. A constant temperature heating device, characterized in that, include: The heating chamber has one or more expansion channel interfaces; Cables are used for power transmission and signal transmission; The expansion channel is connected to the expansion channel interface via a cable; The expansion channel is provided with a slot arranged along the axial direction, and one end of the expansion channel is provided with an adapter end for connecting cables, with the slot passing through the adapter end; The expansion channel is equipped with a heating element connected to the adapter terminal. The expansion channel is also equipped with an over-temperature protection fuse, with one end of the over-temperature protection fuse connected to the adapter terminal and the other end connected to the heating element.

2. The constant temperature heating device according to claim 1, characterized in that, The heating chamber includes a chamber body and a lid. A lid heating platform is provided on the top of the lid, and a first sensor is provided next to the lid heating platform.

3. The constant temperature heating device according to claim 2, characterized in that, The box contains an inner liner, and an inner liner heating platform is provided on the bottom surface of the inner liner. A second sensor is provided next to the inner liner heating platform, and a heating unit is provided on the side wall of the inner liner.

4. The constant temperature heating device according to claim 2, characterized in that, The lid is hinged to the box body on one side and has a snap fastener on the other side. The box body has a snap fastener mating part corresponding to the snap fastener.

5. The constant temperature heating device according to claim 1, characterized in that, The inner surface of the card slot is coated with a highly thermally conductive material.

6. The constant temperature heating device according to claim 1, characterized in that, A third sensor is installed in the extended channel.

7. The constant temperature heating device according to claim 1, characterized in that, The heating box is also equipped with a power interface, a leakage current protector and a button, and the leakage current protector and the button are respectively connected to the power interface.

8. A constant temperature heating device according to any one of claims 1-7, characterized in that, It also includes an intelligent temperature control system.

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