Control circuit of infrared humidifier, infrared humidifier and air conditioner

Abstract

The utility model provides a control circuit of an infrared humidifier, the infrared humidifier and an air conditioner, the control circuit is provided with a main control circuit, a power supply circuit and a heating loop, and the main control circuit is used for controlling the power supply circuit to supply power to the heating loop; the heating loop comprises a first temperature limiter, a fuse link and a heating unit, the first temperature limiter, the fuse link and the heating unit are connected in series, and the first temperature limiter is used for detecting the temperature of the heating unit; voltage transformers are arranged on branches between two adjacently connected devices in the first temperature limiter, the fuse link and the heating unit; the voltage transformers are electrically connected with the main control circuit; the control circuit further comprises a prompt circuit which is electrically connected with the main control circuit. The control circuit of the infrared humidifier can be used for conveniently detecting the fault position when the humidifier stops working.

Description

Technical Field

[0001] This utility model relates to the field of humidifier technology, specifically to a control circuit for an infrared humidifier, an infrared humidifier using the control circuit of the infrared humidifier, and an air conditioner using the infrared humidifier. Background Technology

[0002] Due to varying climates in different regions, computer room air conditioners are often equipped with different functions. Among these, heating and humidification are the most common. Common humidification methods used in computer room air conditioners include evaporative humidification, electrode humidification, and infrared humidification. Infrared humidification uses infrared halogen lamps to heat water in a tank, evaporating it for humidification. Because its electrically charged parts do not directly contact the water, its safety is relatively high. However, current control methods are relatively simple, only offering on / off functionality, leaving room for improvement and expansion.

[0003] Existing infrared humidification methods for computer room air conditioning have several drawbacks. For example, in the humidifier's control circuit, to ensure the safety of the heating circuit, a thermostat and a fuse are connected in series between the infrared humidification lamp circuit for protection. The thermostat detects the temperature of the infrared humidification lamp; when the thermostat reaches its rated temperature, it disconnects, and the humidifier stops working. The circuit is restored after the temperature drops to a certain range, and the humidifier resumes operation. The fuse trips when the current is too high and cannot be reset, requiring replacement. This protection method has a drawback: the infrared humidification lamp is made of glass, making it prone to damage. When the humidifier stops working, it's impossible to determine whether the problem stems from the thermostat reaching its rated temperature, the fuse tripping, or even a problem with the halogen lamp itself, causing significant difficulties for after-sales maintenance.

[0004] Therefore, a more optimized compressor structure needs to be considered. Utility Model Content

[0005] The primary objective of this invention is to provide a control circuit for an infrared humidifier that facilitates the detection of the fault location when the humidifier stops working.

[0006] The second objective of this invention is to provide an infrared humidifier that facilitates the detection of the fault location when the humidifier stops working.

[0007] The third objective of this invention is to provide an air conditioner that facilitates the detection of the fault location when the humidifier stops working.

[0008] To achieve the aforementioned first objective, the control circuit of the infrared humidifier provided by this utility model includes a main control circuit, a power supply circuit, and a heating circuit. The main control circuit controls the power supply circuit to supply power to the heating circuit. The heating circuit includes a first temperature limiter, a fuse, and a heating unit, which are connected in series. The first temperature limiter is used to detect the temperature of the heating unit. A voltage transformer is provided on each branch between two adjacent devices in the first temperature limiter, fuse, and heating unit, and the voltage transformer is electrically connected to the main control circuit. The control circuit also includes a prompting circuit, which is electrically connected to the main control circuit.

[0009] As can be seen from the above scheme, the control circuit of the infrared humidifier of this utility model has voltage transformers installed on the branches between two adjacent devices in the first temperature limiter, fuse and heating unit. When the infrared humidifier stops working, the voltage transformers can be used to confirm whether there is voltage in the detected circuit, thereby further determining which node of the first temperature limiter, fuse and heating unit is faulty, determining the fault location, and providing a prompting circuit for repair.

[0010] In a further embodiment, the voltage transformer is electrically connected to the main control circuit via a control switch.

[0011] Therefore, it can be seen that the voltage transformer is electrically connected to the main control circuit through a control switch, which makes it easy to control the working state of the voltage transformer.

[0012] In a further design, there are three heating circuits, each of which is electrically connected to one phase of the power supply output.

[0013] Therefore, by setting up three heating circuits and connecting them to the output terminals of one phase of the power supply circuit, the voltage of the three-phase circuit can be balanced. At the same time, the heating speed can be increased, and the humidification efficiency of the humidifier can be improved.

[0014] In a further embodiment, the control circuit also includes a second temperature limiter, which is electrically connected to the main control circuit and is used to limit the water temperature of the water tank in the infrared humidifier.

[0015] Therefore, by setting a second temperature limiter to detect the water temperature in the water tank of the infrared humidifier, the water temperature in the tank can be prevented from becoming too high.

[0016] In a further embodiment, the control circuit also includes a level switch, which is electrically connected to the main control circuit and is used to detect the level of the water tank in the infrared humidifier.

[0017] Therefore, by setting a level switch, the water level in the tank can be detected so that water can be added.

[0018] To achieve the second objective mentioned above, the infrared humidifier provided by this utility model includes a control circuit, which adopts the control circuit described above.

[0019] In a further embodiment, the infrared humidifier also includes a fixed bracket, a drive unit, and a water tank. Both the drive unit and the heating unit are mounted on the fixed bracket. The drive unit is electrically connected to the main control circuit and is used to adjust the distance between the water tank and the heating unit.

[0020] Therefore, by setting a drive device to adjust the distance between the water tank and the heating unit, the humidification efficiency can be easily adjusted by changing the position of the water tank, thus ensuring a suitable ambient humidity.

[0021] In a further embodiment, the water tank has an opening that faces upward in the vertical direction, and the heating unit is installed above the opening; the driving device drives the water tank to move in the vertical direction.

[0022] Therefore, installing the heating unit above the opening can improve humidification efficiency.

[0023] In a further embodiment, the drive device includes one of an electric motor drive device, a pneumatic cylinder drive device, or a hydraulic cylinder drive device.

[0024] Therefore, the drive device can be one of the following: electric motor drive device, pneumatic cylinder drive device or hydraulic cylinder drive device, which can increase the application scenarios.

[0025] In a further embodiment, a drain control valve is installed at the drain outlet of the water tank, and the drain control valve is electrically connected to the main control circuit.

[0026] Therefore, it can be seen that by setting a drainage control valve, the drainage of the water tank can be easily controlled.

[0027] To achieve the third objective mentioned above, the air conditioner provided by this utility model is equipped with an infrared humidifier, which is the infrared humidifier described above. Attached Figure Description

[0028] Figure 1 This is a structural schematic diagram of an embodiment of the infrared humidifier of this utility model.

[0029] Figure 2 This is a circuit diagram of the control circuit in an embodiment of the infrared humidifier of this utility model.

[0030] Figure 3 This is a schematic diagram of the structure of the water tank when it is moved to the initial position in an embodiment of the infrared humidifier of this utility model.

[0031] The present invention will be further described below with reference to the accompanying drawings and embodiments. Detailed Implementation

[0032] Example of an infrared humidifier:

[0033] like Figure 1 As shown, in this embodiment, the infrared humidifier includes a control circuit, a fixed bracket 1, a drive device 2, a water tank 3, and a water inlet pipe 4. The drive device 2 is mounted on the fixed bracket 1 and is electrically connected to the control circuit. The drive device 2 is used to drive the water tank 3 to move, and the water inlet pipe 4 is used to add water to the water tank 3.

[0034] In this embodiment, see Figure 2 The control circuit includes a main control circuit 5, a power supply circuit 6, a heating circuit 7, and a notification circuit 8. The main control circuit 5 controls the power supply circuit 6 to supply power to the heating circuit 7. In this embodiment, there are three heating circuits 7, each electrically connected to one phase output terminal of the power supply circuit 6. By setting three heating circuits 7 to be electrically connected to one phase output terminal of the power supply circuit 6 respectively, voltage balance of the three-phase circuit can be achieved. At the same time, the heating speed can be increased, improving the humidification efficiency of the humidifier.

[0035] In this embodiment, the heating circuit 7 includes a first temperature limiter 71, a fuse 72, and a heating unit 73, which are connected in series. All three are mounted on a bracket 1. The first temperature limiter 71 is installed near the heating unit 73 to detect its temperature. The water tank 3 has an upward-facing opening (not shown), and the heating unit 73 is installed above this opening. Preferably, the heating unit 73 is a halogen lamp.

[0036] A voltage transformer 74 is installed on each branch between two adjacent devices in the first temperature limiter 71, fuse 72, and heating unit 73. Both the voltage transformer 74 and the indication circuit 8 are electrically connected to the main control circuit 5. In this embodiment, the voltage transformer 74 is electrically connected to the main control circuit 5 via a control switch 9. Preferably, the control switch 9 is a relay switch. The electrical connection of the voltage transformer 74 to the main control circuit 5 via the control switch 9 facilitates control of the operating state of the voltage transformer 74.

[0037] In this embodiment, the first end of the first temperature limiter 71 is electrically connected to one phase of the live wire of the power supply circuit 6, the second end of the first temperature limiter 71 is electrically connected to the first end of the fuse 72, the second end of the fuse 72 is electrically connected to the first end of the heating unit 73, and the second end of the heating unit 73 is electrically connected to the neutral wire of the power supply circuit 6. Of course, the series connection order of the first temperature limiter 71, the fuse 72, and the heating unit 73 can also be interchanged.

[0038] The drive device 2 is electrically connected to the main control circuit 5, and is used to adjust the distance between the water tank 3 and the heating unit 73. In this embodiment, the drive device 2 drives the water tank 3 to move vertically. By adjusting the distance between the water tank 3 and the heating unit 73 using the drive device 2, the humidification efficiency can be easily adjusted by changing the position of the water tank 3, ensuring suitable ambient humidity. The drive device 2 includes one of a motor drive device, a cylinder drive device, or a hydraulic cylinder drive device. Motor drive devices, cylinder drive devices, or hydraulic cylinder drive devices are technologies known to those skilled in the art, and the structure of the drive device 2 driving the water tank 3 to move will not be described in detail.

[0039] In this embodiment, the prompting circuit 8 is used to prompt operation. The prompting circuit 8 may be a display screen circuit and / or an audible and visual alarm device.

[0040] In this embodiment, the control circuit further includes a second temperature limiter 10, which is electrically connected to the main control circuit 5. The second temperature limiter 10 is used to limit the water temperature of the water tank 3. By setting the second temperature limiter 10 to detect the water temperature of the water tank 3 of the infrared humidifier, excessively high water temperatures in the water tank 3 can be avoided. When the water temperature is too high, the second temperature limiter 10 can send a feedback signal to the main control circuit 5 so that the main control circuit 5 can take a corresponding action.

[0041] In this embodiment, the control circuit also includes a level switch 11, which is electrically connected to the main control circuit 5. The level switch 11 is used to detect the liquid level in the water tank 3 of the infrared humidifier. By setting the level switch 11, the liquid level in the water tank 3 can be detected for liquid level control. The level switch 11 includes a first level switch 111 and a second level switch 112, both of which are inserted into the water tank 3. The first level switch 111 is used to detect high liquid levels in the water tank 3 to prevent overflow, and the second level switch 112 is used to detect low liquid levels in the water tank 3 to prevent insufficient water in the water tank 3.

[0042] In addition, a drain control valve 12 is installed at the drain outlet of the water tank 3, and the drain control valve 12 is electrically connected to the main control circuit 5. By installing the drain control valve 12, the drainage of the water tank 3 can be easily controlled.

[0043] In this embodiment, when the infrared humidifier is working, the main control circuit 5 controls the drive device 2 to move the water tank 3 to its initial position, as shown in the figure. Figure 3As shown, next, the water inlet pipe 4 is controlled to fill water. When the water level in the water tank 3 reaches the specified level, the power supply circuit 6 and the heating circuit 7 are powered to heat the water in the water tank 3 by the heating unit 73 to generate water vapor for humidification. During humidification, the humidification efficiency can be adjusted by changing the distance between the water tank 3 and the heating unit 73 to ensure suitable ambient humidity. If the humidification amount has not reached the set value and the heating unit 73 stops working, firstly, the main control circuit 5 closes the control switch 9 to make the voltage transformer 74 perform voltage detection. If the voltage transformer 74 is between the first temperature limiter 71 and the fuse 72, and if the voltage transformer 74 between the first temperature limiter 71 and the fuse 72 determines that there is no voltage, it means that the first temperature limiter 71 has reached the rated temperature and disconnected. At this time, the water tank 3 can be controlled to be lowered to the lowest position, away from the heating unit 73. The position of the water tank 3 is as follows: Figure 1 As shown, this accelerates heat dissipation, shortening the recovery time of the heating unit 73. If the voltage transformer 74 between the first temperature limiter 71 and the fuse 72 detects voltage at this time, the fault occurs after the first temperature limiter 71, and the result can be determined by the voltage transformer 74 between the fuse 72 and the heating unit 73. If there is no voltage in the voltage transformer 74 between the fuse 72 and the heating unit 73, it indicates that the fuse 72 is open and needs to be replaced. If there is voltage in the voltage transformer 74 between the fuse 72 and the heating unit 73, it indicates that the heating unit 73 has a problem. At this time, the water tank 3 is lowered to the lowest position to facilitate repair and replacement of the heating unit 73. After the voltage transformer 74 detects the result, the prompting circuit 8 provides a prompt so that the user is informed.

[0044] As can be seen from the above, the control circuit of the infrared humidifier of this utility model has voltage transformers 74 installed on the branches between two adjacent devices in the first temperature limiter 71, fuse 72 and heating unit 73. When the infrared humidifier stops working, the voltage transformers 74 can confirm whether there is voltage in the detected circuit, thereby further determining which node of the first temperature limiter 71, fuse 72 and heating unit 73 has a problem, determining the fault location, and prompting through the prompting circuit 8 for repair.

[0045] Air conditioner example:

[0046] In this embodiment, the air conditioner is equipped with an infrared humidifier, which is the infrared humidifier described in the above embodiment.

[0047] It should be noted that the above are only preferred embodiments of the present utility model, but the design concept of the utility model is not limited thereto. Any non-substantial modifications made to the present utility model using this concept shall also fall within the protection scope of the present utility model.

Claims

1. A control circuit for an infrared humidifier, comprising a main control circuit, a power supply circuit, and a heating circuit, wherein the main control circuit controls the power supply circuit to supply power to the heating circuit; the heating circuit includes a first temperature limiter, a fuse, and a heating unit, wherein the first temperature limiter, the fuse, and the heating unit are connected in series, and the first temperature limiter is used to detect the temperature of the heating unit; characterized in that: A voltage transformer is provided on each branch between two adjacent devices in the first temperature limiter, the fuse, and the heating unit, and the voltage transformer is electrically connected to the main control circuit. The control circuit also includes a prompting circuit, which is electrically connected to the main control circuit.

2. The control circuit of the infrared humidifier according to claim 1, characterized in that: All of the voltage transformers are electrically connected to the main control circuit via control switches.

3. The control circuit of the infrared humidifier according to claim 1, characterized in that: The number of heating circuits is three, and each heating circuit is electrically connected to one phase power output terminal of the power supply circuit.

4. The control circuit of the infrared humidifier according to any one of claims 1 to 3, characterized in that: The control circuit also includes a second temperature limiter, which is electrically connected to the main control circuit. The second temperature limiter is used to limit the water temperature of the water tank of the infrared humidifier.

5. The control circuit of the infrared humidifier according to any one of claims 1 to 3, characterized in that: The control circuit also includes a liquid level switch, which is electrically connected to the main control circuit and is used to detect the liquid level in the water tank of the infrared humidifier.

6. An infrared humidifier, comprising a control circuit, characterized in that: The control circuit adopts the control circuit according to any one of claims 1 to 5.

7. The infrared humidifier according to claim 6, characterized in that: The infrared humidifier also includes a fixed bracket, a driving device, and a water tank. The driving device and the heating unit are both mounted on the fixed bracket. The driving device is electrically connected to the main control circuit and is used to adjust the distance between the water tank and the heating unit.

8. The infrared humidifier according to claim 7, characterized in that: The water tank has an opening that faces upward in the vertical direction, and the heating unit is installed above the opening; The drive device drives the water tank to move in the vertical direction.

9. The infrared humidifier according to claim 8, characterized in that: The driving device includes one of a motor driving device, a cylinder driving device, or a hydraulic cylinder driving device.

10. The infrared humidifier according to any one of claims 7 to 9, characterized in that: A drain control valve is installed at the drain outlet of the water tank, and the drain control valve is electrically connected to the main control circuit.

11. An air conditioner equipped with an infrared humidifier, characterized in that: The infrared humidifier is the infrared humidifier according to any one of claims 6 to 10.

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