Heating and exhaust adjusting device for insulated house
By introducing a heating and exhaust regulation device with a timer relay and a temperature controller into the insulation room, the problem of insufficient automation in the heating and exhaust process in the existing technology has been solved, realizing timed heating and exhaust, and improving the safety and efficiency of production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI YANXIN AUTO SEATING PARTS
- Filing Date
- 2025-05-23
- Publication Date
- 2026-04-28
AI Technical Summary
The heating and ventilation processes of existing insulated rooms lack automated control, resulting in frequent manual operations, increased labor costs, failure to meet standardized production requirements, and low safety and reliability.
Design a heating and exhaust regulating device that includes a control box, a hot air blower, and a negative pressure blower. Utilize a timer relay and a thermostat to achieve timed heating and exhaust, and combine this with a digital thermometer to monitor and display the temperature in real time, ensuring that exhaust gas is discharged on time and avoiding excessive temperature.
It enables the timed discharge of exhaust gas from the insulation chamber, improving safety and reliability, reducing manual operation costs, meeting process requirements, and ensuring that materials are not damaged.
Smart Images
Figure CN224175338U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of heat preservation room fan adjustment device, and in particular to a heat preservation room heating exhaust adjustment device. Background Technology
[0002] In industrial production, insulated chambers, as temperature-controlled enclosed spaces, are widely used in material drying and industrial product curing. Taking industrial product processing as an example, insulated chambers are often equipped with industrial hot air blowers for heating, allowing the finished product to complete curing and drying processes under specific temperature conditions. However, existing environmental control systems for insulated chambers generally suffer from insufficient automation, particularly in the coordinated control of heating and exhaust processes.
[0003] Existing heating equipment for insulated rooms typically uses industrial hot air blowers, which operate manually at a preset temperature, maintaining a stable temperature within the room through a built-in temperature control module. After the heating process is complete, the finished product may retain volatile gases or odors due to material properties or processing, requiring exhaust fans to replace the indoor air and remove the odors. However, the start and stop of traditional exhaust fans are entirely manual. Operators must judge the heating progress based on experience, manually turn on the exhaust fan for ventilation, and manually turn it off again after the odors are eliminated.
[0004] Manual operation relies on the operator's sense of responsibility and experience, and is prone to problems such as missed operations, accidental operations, or delayed operations. This leads to differences in the processing procedures for different batches of products, making it difficult to meet standardized production requirements. Especially in large-scale continuous production scenarios, frequent manual operations increase labor costs and cannot meet process requirements. Moreover, staff cannot know the temperature inside the insulation chamber and control the start and stop of the hot air blower, which can easily damage the materials inside the insulation chamber, resulting in low reliability and safety. Utility Model Content
[0005] The purpose of this utility model is to overcome the shortcomings of the existing technology, which involves frequent manual operation, increases labor costs, and fails to meet process requirements, by providing a heating and exhaust regulation device for insulated rooms.
[0006] The objective of this utility model can be achieved through the following technical solutions:
[0007] A heating and exhaust regulating device for an insulated room includes a control box fixed on the insulated room, a hot air blower M1 and a negative pressure blower M2. The control box includes a power supply and a control circuit. The power supply is connected to the hot air blower M1 and the negative pressure blower M2 respectively through the control circuit.
[0008] The control circuit includes a switch SA, a first timing relay KT1, and a second timing relay KT2. The switch SA is connected in series with the hot air blower M1. The coils of the first timing relay KT1 and the second timing relay KT2 are both connected in parallel with the hot air blower M2. The contacts of the first timing relay KT1 are normally open contacts, and the contacts of the second timing relay KT2 are normally closed contacts. The normally open contacts of the first timing relay KT1, the normally closed contacts of the second timing relay KT2, and the negative pressure blower M2 are connected in series.
[0009] Preferably, the device further includes a digital thermometer, the temperature probe of which is fixed inside the insulation room, the display screen of which is fixed outside the insulation room, and the digital thermometer is connected to a control circuit.
[0010] Preferably, the control circuit further includes a temperature controller BT, which is connected to a digital display thermometer. The coil of the temperature controller BT is connected in parallel with the hot air blower M1. The contacts of the temperature controller BT are normally closed contacts, and the normally closed contacts of the temperature controller BT are connected in series with the switch SA and the hot air blower M1.
[0011] Preferably, the negative pressure fan M2 is fixed to the top of the insulated room.
[0012] Preferably, the hot air blower M1 is fixed to one side of the insulated room.
[0013] Preferably, the timing duration of the first timing relay KT1 is less than the timing duration of the second timing relay KT2.
[0014] Preferably, the control box is equipped with a leakage current protection circuit, which is connected to the power supply and the control circuit.
[0015] Preferably, the control box and the digital display thermometer are located on the same side of the insulation room.
[0016] Preferably, the control circuit includes a short-circuit protection circuit, which is connected in series with the switch SA.
[0017] Preferably, the short-circuit protection circuit includes a fuse and a resettable fuse connected in series.
[0018] Compared with the prior art, the present invention has the following advantages:
[0019] (1) In this scheme, the negative pressure fan M2 is designed based on the series connection of the first timing relay KT1 and the second timing relay KT2. It can turn on the negative pressure fan M2 at regular intervals to exhaust air and turn off the negative pressure fan M2 at regular intervals to realize the timed circulation exhaust of the insulation room and ensure that the exhaust gas in the insulation room can be discharged at regular intervals. Compared with manually turning the negative pressure fan M2 on and off the insulation room, it can remove the exhaust gas in the insulation room in a timely manner, which is safer, the control circuit structure is simple, and the cost of controlling the negative pressure fan M2 is reduced.
[0020] (2) This solution uses a digital thermometer to detect the temperature inside the insulation room and displays it on the screen, so that external staff can understand the condition of the insulation room. In addition, the temperature controller BT controls the opening and closing of the contact based on the temperature detected by the digital thermometer. When the detected temperature exceeds the threshold, the normally closed contact of the temperature controller BT opens, and the hot air blower M1 is powered off to stop heating the insulation room, so as to avoid the insulation room temperature from being too high and damaging the materials. Attached Figure Description
[0021] Figure 1 The control circuit diagram for adjusting the fan of the heat preservation room provided by this utility model;
[0022] Figure 2 A schematic diagram of the structure of the adjustment device provided by this utility model;
[0023] In the diagram: 1. Control box, 2. Hot air blower, 3. Negative pressure blower, 4. Digital thermometer, 5. Insulation room. Detailed Implementation
[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0025] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0026] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0027] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. 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, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0028] It should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.
[0029] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," not that the structure must be completely horizontal, but can be slightly tilted.
[0030] Example
[0031] like Figure 1 and Figure 2 As shown, this embodiment provides a heating and exhaust regulating device for an insulated room, characterized in that it includes a control box 1, a hot air blower M12 and a negative pressure blower M23 fixed on the insulated room 5. The control box 1 includes a power supply and a control circuit. The power supply is connected to the hot air blower M12 and the negative pressure blower M23 through the control circuit.
[0032] The control circuit includes a switch SA, a first timing relay KT1, and a second timing relay KT2. The switch SA is connected in series with the hot air blower M12. The coils of the first timing relay KT1 and the second timing relay KT2 are both connected in parallel with the hot air blower M22. The contacts of the first timing relay KT1 are normally open, and the contacts of the second timing relay KT2 are normally closed. The normally open contacts of the first timing relay KT1, the normally closed contacts of the second timing relay KT2, and the negative pressure fan M23 are connected in series.
[0033] Working principle: When switch SA in control box 1 is closed, hot air blower M12 is energized to heat the insulation room. At the same time, first timing relay KT1 and second timing relay KT2 are energized. After a preset time, the normally open contact of first timing relay KT1 closes, and negative pressure fan M23 is energized to exhaust air. After a period of time, the normally closed contact of second timing relay KT2 opens, and negative pressure fan M23 is de-energized and stops working, thus realizing timed exhaust of air from the insulation room.
[0034] The negative pressure fan M23 is designed based on the series connection of the first timing relay KT1 and the second timing relay KT2. It can periodically turn on and off the negative pressure fan M23 to exhaust air, thus achieving timed circulation and exhaust of the insulation room 5, ensuring that the exhaust gas inside the insulation room is discharged on schedule. Compared to manually turning the negative pressure fan M23 on and off, this method can promptly remove exhaust gas from the insulation room, is safer, has a simpler control circuit structure, and reduces the cost of controlling the negative pressure fan M23.
[0035] In a preferred embodiment, the regulating device further includes a digital thermometer 4. The temperature probe of the digital thermometer 4 is fixed inside the insulation chamber, and the display screen of the digital thermometer 4 is fixed outside the insulation chamber 5. The digital thermometer 4 is connected to the control circuit. The model of the digital thermometer 4 can be LX-066, or other models can be used.
[0036] Furthermore, the control circuit also includes a temperature controller BT, which is connected to the digital display thermometer 4. The coil of the temperature controller BT is connected in parallel with the hot air blower M12. The contacts of the temperature controller BT are normally closed contacts, which are connected in series with the switch SA and the hot air blower M12. The temperature controller BT can be a WK-208 or other models.
[0037] The temperature inside the insulation room is detected by digital thermometer 4 and displayed on the screen, making it easy for external staff to understand the condition of the insulation room. In addition, the temperature controller BT controls the opening and closing of the contact based on the temperature detected by the digital thermometer 4. When the detected temperature exceeds the threshold, the normally closed contact of the temperature controller BT opens, and the hot air blower M12 is powered off to stop heating the insulation room, thus avoiding damage to the materials due to excessive temperature in the insulation room.
[0038] The timing duration of the first timing relay KT1 is shorter than that of the second timing relay KT2. The timing durations t1 and t2 of both relays can be set according to factors such as the size of the insulation chamber, its insulation performance, and the crop variety. For example, for smaller or better-insulated chambers, t1 can be set to 3-5 minutes and t2 to 8-10 minutes; for larger or poorly-insulated chambers, t1 can be set to 5-8 minutes and t2 to 10-15 minutes. Both the first and second timing relays KT1 can be of model H7ET, or other models.
[0039] In this embodiment, the negative pressure fan M23 is fixed to the top of the insulation room. The hot air fan M12 is fixed to one side of the insulation room. The control box 1 and the digital display thermometer 4 are located on the same side of the insulation room. This facilitates the staff's observation of the temperature inside the insulation room and helps them understand the working conditions inside.
[0040] In this embodiment, the control box 1 is equipped with a leakage current protection circuit, which is connected to the power supply and control circuit. The control box should have leakage current protection functionality, which can be achieved by using a leakage current protection circuit composed of a zero-sequence current transformer, a leakage current trip unit, and a main switch. Specifically, the zero-sequence current transformer monitors the current vector sum in the circuit in real time. When leakage occurs, an unbalanced current appears in the circuit, and the transformer transmits a signal to the leakage current trip unit. Upon receiving the signal, the leakage current trip unit triggers the mechanical tripping mechanism, which drives the main switch to quickly disconnect the circuit and cut off the power supply. This design can automatically cut off the power supply within 0.1 seconds when leakage occurs in the device, ensuring the safety of the operator.
[0041] In this embodiment, the control circuit includes a short-circuit protection circuit, which is connected in series with the switch SA. Optionally, the short-circuit protection circuit includes a fuse and a resettable fuse connected in series. When a short-circuit fault occurs, the large current quickly melts the fuse, while the resettable fuse, due to overcurrent, experiences a rapid temperature rise and enters a high-resistance state. This dual mechanism automatically disconnects the short-circuit protection switch, preventing circuit damage and safety accidents. After the fault is cleared, the resettable fuse automatically returns to a low-resistance state, facilitating rapid equipment restart.
[0042] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.
Claims
1. A heating and exhaust regulating device for an insulated room, characterized in that, Includes a control box (1) fixed on the insulation room, a hot air blower M1 (2) and a negative pressure blower M2 (3). The control box (1) includes a power supply and a control circuit. The power supply is connected to the hot air blower M1 (2) and the negative pressure blower M2 (3) respectively through the control circuit. The control circuit includes a switch SA, a first timing relay KT1 and a second timing relay KT2. The switch SA is connected in series with the hot air blower M1 (2). The coils of the first timing relay KT1 and the second timing relay KT2 are both connected in parallel with the hot air blower M2 (2). The contacts of the first timing relay KT1 are normally open contacts, and the contacts of the second timing relay KT2 are normally closed contacts. The normally open contacts of the first timing relay KT1, the normally closed contacts of the second timing relay KT2, and the negative pressure blower M2 (3) are connected in series.
2. The heating and exhaust regulating device for an insulated room according to claim 1, characterized in that, The device also includes a digital thermometer (4), the temperature probe of which is fixed inside the insulation room, the display screen of which is fixed outside the insulation room, and the digital thermometer (4) is connected to the control circuit.
3. The heating and exhaust regulating device for an insulated room according to claim 2, characterized in that, The control circuit also includes a temperature controller BT, which is connected to a digital display thermometer (4). The coil of the temperature controller BT is connected in parallel with the hot air blower M1 (2). The contacts of the temperature controller BT are normally closed contacts. The normally closed contacts of the temperature controller BT are connected in series with the switch SA and the hot air blower M1 (2).
4. The heating and exhaust regulating device for an insulated room according to claim 1, characterized in that, The negative pressure fan M2(3) is fixed to the top of the insulated room.
5. The heating and exhaust regulating device for an insulated room according to claim 1, characterized in that, The hot air blower M1(2) is fixed on one side of the insulated room.
6. The heating and exhaust regulating device for an insulated room according to claim 1, characterized in that, The timing duration of the first timing relay KT1 is less than the timing duration of the second timing relay KT2.
7. The heating and exhaust regulating device for an insulated room according to claim 1, characterized in that, The control box (1) is equipped with a leakage protection circuit, which is connected to the power supply and the control circuit.
8. The heating and exhaust regulating device for an insulated room according to claim 1, characterized in that, The control box (1) and the digital thermometer (4) are located on the same side of the insulation room.
9. The heating and exhaust regulating device for an insulated room according to claim 1, characterized in that, The control circuit includes a short-circuit protection circuit, which is connected in series with switch SA.
10. A heating and exhaust regulating device for an insulated room according to claim 9, characterized in that, The short-circuit protection circuit includes a fuse and a resettable fuse connected in series.