CN111457518B - Humidifier - Google Patents

Abstract

The invention discloses a humidifier. A floating device drives a metal conductor to move up and down. When the metal conductor moves upward to a set height, it contacts a detection contact. When the controller detects that the detection contact is in contact with the metal conductor for a duration When the time threshold is set, the first set time is controlled to drain water from the barrel; therefore, the humidifier of the present invention improves the reliability of water level detection, avoids misjudgment, and ensures the stable and reliable operation of the humidifier.

Description

a humidifier

technical field

The invention relates to the technical field of humidification equipment, in particular to a humidifier.

Background technique

For base stations of some large network servers, since the server requires constant temperature and humidity for the environment, the air conditioner in the base station needs to be equipped with a humidifier. A humidifier uses electrodes to heat water until it boils to form water vapor, thereby achieving the effect of humidification.

Water level monitoring in the humidifier is critical, if the water level gets too high, causing water to overflow, it could damage the humidifier. Most of the current water level monitoring uses water level sensors, but the water level sensors are expensive and easy to damage, and the reliability of high water level detection is poor, which reduces the operation stability of the humidifier.

Contents of the invention

The invention provides a humidifier, which solves the problem of poor reliability of water level detection in the prior art.

In order to achieve the above-mentioned technical purpose, the present invention adopts the following technical solutions to realize:

A humidifier comprising:

barrel body, which has an accommodation space;

a floating device, which is located in the accommodating space, and has a metal conductor on the floating device;

A water level detection device, which includes a detection contact and a controller;

When the metal conductor moves upward to the set height and contacts the detection contact, the controller detects whether the duration of contact between the detection contact and the metal conductor is greater than the set time threshold, and if so, controls the barrel to drain the first setting set time.

Further, when the controller detects that the duration of contact between the detection contact and the metal conductor is greater than the set time threshold and the number n exceeds the set number of times, it controls the barrel to drain outward for the second set time and sends an alarm; the number of times n Cleared; wherein, the second set time is greater than the first set time.

Still further, the water level detection device includes the controller, a DC power supply, a current limiting resistor, and the detection contact; the detection contact includes two metal contacts arranged at intervals; one of the metal contacts Connect the DC power supply, and the other metal contact is connected to the detection pin of the controller through the current limiting resistor; the controller detects whether the duration of simultaneous contact between the two metal contacts and the metal conductor is greater than the set time threshold, and if so, controls the barrel Drain outward for the first set time.

Furthermore, when the controller detects that the duration of the simultaneous contact between the two metal contacts and the metal conductor is greater than the set time threshold and the number n exceeds the set number of times, it controls the bucket to drain outward for the second set time, and sends out Alarm, the number of times n is cleared; wherein, the second set time is greater than the first set time.

Still further, several electrodes of the humidifier are arranged vertically in the accommodating space; springs are sheathed on each of the electrodes, and the floating device is fixed to each spring.

Further, the bottom end of each electrode has a stopper for stopping the spring sheathed on the electrode from falling off.

Still further, the floating device is sleeved on each spring.

Furthermore, the central axis of the floating device coincides with the central axis of the barrel; the two metal contacts are fixed at the center of the top surface of the barrel.

Still further, the floating device includes a horizontal part and a vertical part perpendicular to each other, and the bottom end surface of the vertical part is fixed to the center of the horizontal part; the horizontal part has several perforations adapted to several springs , the spring passes through the corresponding through hole and is fixed with the corresponding through hole; the metal conductor is fixed on the top surface of the vertical part.

Further, the plurality of electrodes are evenly arranged circumferentially around the central axis of the barrel.

Compared with the prior art, the advantages and positive effects of the present invention are: the humidifier of the present invention drives the metal conductor to move up and down through the floating device, and when the metal conductor moves upward to the set height, it contacts with the detection contact, when the controller When it is detected that the duration of contact between the detection contact and the metal conductor is greater than the set time threshold, the barrel is controlled to drain outward for the first set time; therefore, the humidifier of the present invention improves the reliability of water level detection and avoids misjudgment , to ensure the stable and reliable operation of the humidifier.

Other characteristics and advantages of the present invention will become clearer after reading the detailed description of the present invention in conjunction with the accompanying drawings.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained according to these drawings without any creative effort.

Fig. 1 is the structural representation of an embodiment of the humidifier proposed by the present invention;

Fig. 2 is the front view of Fig. 1;

Fig. 3 is the top view of Fig. 1;

Fig. 4 is the structural representation of floating device in Fig. 1;

Fig. 5 is a schematic diagram of the water level detecting device of the humidifier proposed by the present invention.

Reference signs:

1. Barrel body; 2. Electrode; 3. Spring; 4. Floating device; 4-1. Horizontal part; 4-2. Vertical part; 5. Metal conductor; 6. Metal contact; 7. Drain solenoid valve; 8. Water inlet box; 9. Water inlet solenoid valve.

Detailed ways

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

It should be noted that, in the description of the present invention, the terms "up", "down", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate directions or positions The terms of the relationship are based on the orientation or positional relationship shown in the drawings, which are for convenience of description only, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be interpreted as Limitations on the Invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and should not be understood as indicating or implying relative importance.

In addition, it should be noted that, in the description of the present invention, unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or It is a detachable connection, or integrally connected: it can be mechanically connected, or electrically connected: it can be directly connected, or indirectly connected through an intermediary, and it can be the internal communication of two elements. For those skilled in the art , the specific meanings of the above terms in the present invention can be understood according to specific situations.

This embodiment proposes a humidifier, which mainly includes a barrel body 1, several electrodes 2, a floating device 4, a water level detection device, etc., as shown in Fig. 1 to Fig. 5 .

The barrel body 1 has an accommodating space for accommodating the electrode 2, the floating device 4, water, etc.; the barrel body 1 has a water inlet and a water outlet, the water inlet is connected to the water inlet pipe, and the water inlet box 8 and the water inlet pipe are arranged on the water inlet pipe. Electromagnetic valve 9; the drain port is connected to a drain pipe, and a drain solenoid valve 7 is arranged on the drain pipe.

Several electrodes 2 are vertically arranged in the accommodation space of the bucket body 1, and the electrodes 2 heat the water in the accommodation space. When the humidifier is working, open the water inlet solenoid valve 9, water flows into the barrel body 1 through the water inlet box 8, and the water level in the barrel body 1 rises. When the water contacts the electrode 2, the electrode 2 heats the water to a boiling state, thereby Produces water vapor. When needing to drain, open the drain solenoid valve 7, and the staving 1 drains outward.

The floating device 4 is located in the containing space, and the floating device 4 has a metal conductor 5; the floating device 4 floats up and down with the water level in the containing space, and then drives the metal conductor 5 to move up and down. In this embodiment, the metal conductor 5 is located on the top surface of the floating device 4 .

The water level detection device mainly includes a detection contact and a controller; the floating device 4 drives the metal conductor 5 to move up and down, when the metal conductor 5 moves upward to a set height, the metal conductor 5 contacts the detection contact, and the controller detects the detection contact and Whether the duration of the contact of the metal conductor 5 is greater than the set time threshold, if so, then control the barrel 1 to drain water out for the first set time.

Since the metal conductor 5 may be temporarily in contact with the detection contact due to the boiling of water, in order to avoid misjudgment and improve the accuracy and reliability of detection, it is necessary to detect the duration of the contact between the detection contact and the metal conductor 5, when the duration When it is greater than the set time threshold (such as 5 seconds), it means that the water level in the barrel 1 reaches the high water level threshold, and it is determined that the water level in the barrel 1 is a high water level, and the controller controls the drainage solenoid valve 7 to open, and the barrel 1 drains outward First set the time. In order to avoid frequent and repeated drainage from affecting the normal operation of the humidifier and improve the stability of the humidifier, sufficient drainage time needs to be given, that is, the first set time of drainage is required at this time, so that the water level in the barrel 1 is sufficiently low. In this embodiment, the first set time is 3 seconds. As the water level in the bucket body 1 decreases, the floating device 4 descends, driving the metal conductor 5 to descend, and the contact between the metal conductor 5 and the detection contact is disconnected.

The humidifier of this embodiment drives the metal conductor 5 to move up and down through the floating device 4. When the metal conductor 5 moves upward to the set height, it contacts the detection contact. When the controller detects the duration of the detection contact and the metal conductor When it is greater than the set time threshold, the barrel is controlled to drain outward for the first set time; therefore, the humidifier of this embodiment improves the reliability of water level detection, avoids misjudgment, and ensures the stable and reliable operation of the humidifier.

As a preferred design solution of this embodiment, when the controller detects that the duration of the contact between the detection contact and the metal conductor is greater than the set time threshold, the number n is increased by 1; when the controller detects that the detection contact is in contact with the metal conductor When the duration of the duration is greater than the set time threshold and the number of times n exceeds the set number of times, the barrel is controlled to drain outward for a second set time (such as 2 minutes), and an alarm is issued; the number of times n is cleared; among them, the second set time greater than the first set time. When the number of times n exceeds the set number of times, it means that the first set time of drainage does not make the water level in the barrel 1 drop low enough, and the drainage is too frequent. In order to avoid repeated drainage, it is necessary to increase the duration of drainage. Therefore, when the number of times n exceeds When the number of times is set, the bucket body is controlled to drain outwards for a second set time, and the second set time is greater than the first set time. Because there may be a drainage failure, an alarm needs to be sent at the same time to remind the user to overhaul.

In this embodiment, the water level detection device mainly includes a controller, a DC power supply VCC, a current limiting resistor R, a detection contact, etc.; the detection contact includes two metal contacts 6 arranged at intervals, as shown in Figure 5; one of The metal contact is connected to the DC power supply VCC, and the other metal contact is connected to the detection pin of the controller through the current limiting resistor R; when the metal conductor 5 moves upward to a set height, the metal conductor 5 contacts with the two metal contacts simultaneously. The two metal contacts 6 are arranged horizontally and at intervals, and the width (when the metal conductor is a square) or diameter (when the metal conductor is a cylinder) of the metal conductor 5 is greater than the distance between the two metal contacts 6 to ensure that the metal conductor 5 can Simultaneous contact with two metal contacts. When the metal conductor 5 is not in contact with the two metal contacts, the detection pin of the controller is low level; when the metal conductor 5 is in contact with the two metal contacts at the same time, the metal conductor 5 connects the two metal contacts, and the The line between the power supply VCC and the detection pin of the controller is conducted, and the detection pin of the controller receives a high-level signal, the controller controls the drain solenoid valve 7 to open, and the bucket body 1 drains outwards to avoid excessive water level. The water level detection device designed above can not only simply and effectively detect the high water level in the bucket body 1, but also has a simple structure, low cost and is easy to realize.

The controller detects whether the duration of simultaneous contact between the two metal contacts 6 and the metal conductor 5 (that is, the duration for which the detection pin of the controller receives a high-level signal) is greater than the set time threshold (such as 5 seconds), if so, Then control the bucket body to drain outwards for the first set time. If the metal conductor 5 is only in contact with one of the metal contacts, the detection pin of the controller is low; only when the metal conductor 5 is in contact with two metal contacts 6 at the same time, the detection pin of the controller can receive a high level. level.

Since the metal conductor 5 may only be in contact with one of the metal contacts due to the boiling of water, in order to avoid misjudgment and improve the accuracy and reliability of detection, it is necessary to detect the continuous contact between the two metal contacts and the metal conductor 5 at the same time. Time, when the duration is greater than the set time threshold (such as 5 seconds), it means that the water level in the barrel 1 reaches the high water level threshold, and it is determined that the water level in the barrel 1 is a high water level, and the controller controls the drain solenoid valve 7 to open, and the barrel Body 1 drains water outward for a first set time.

As a preferred design solution of this embodiment, when the controller detects that the duration of simultaneous contact between two metal contacts and metal conductors is greater than the set time threshold, the number n is increased by 1; when the controller detects that two metal contacts When the duration of the simultaneous contact between the point and the metal conductor is greater than the set time threshold n exceeds the set number of times, the barrel is controlled to drain outward for the second set time (such as 2 minutes), and an alarm is issued, and the number n is reset to zero; , the second set time is greater than the first set time. When the number of times n exceeds the set number of times, it means that the first set time of drainage does not make the water level in the barrel 1 drop low enough, and the drainage is too frequent. In order to avoid repeated drainage, it is necessary to increase the duration of drainage. Therefore, when the number of times n exceeds When the number of times is set, the bucket body is controlled to drain outwards for a second set time, and the second set time is greater than the first set time. Because there may be a drainage failure, an alarm needs to be sent at the same time to remind the user to overhaul.

Several electrodes 2 of the humidifier are arranged vertically in the accommodation space; each electrode 2 is sheathed with a spring 3 , and the floating device 4 is fixed to each spring 3 . The electrode 2 heats the water to a boiling state. When the water boils, the spring 3 set on the electrode 2 will be driven to vibrate, and the spring 3 will rub against the surface of the electrode 2, thereby removing the scale on the surface of the electrode 2. The floating device 4 floats up and down with the water level in the accommodation space, thereby driving the spring 3 to move up and down along the electrode 2, and then increasing the friction between the spring 3 and the surface of the electrode 2, thereby removing the scale on the surface of the electrode 2 and improving the cleaning efficiency. Dirt effect. The floating device 4 is made of high-temperature-resistant and low-density materials to avoid damage due to excessive water temperature, and has greater buoyancy.

Therefore, in the humidifier of this embodiment, the spring 3 is sheathed on the vertically arranged electrode 2, and the spring 3 is driven to vibrate when the water boils, thereby rubbing against the surface of the electrode 2 to remove the scale on the surface of the electrode 2, realizing automatic It is simple and convenient to remove the scale on the surface of the electrode, the cost of descaling is low, the maintenance cost is reduced, and the reliability of the product is improved; because no chemicals are used, there is no pollution to the environment, it is safe and reliable, and the service life of the humidifier is extended; and the structure Simple and low manufacturing cost; therefore, the humidifier of this embodiment not only avoids the difficulty of disassembly and assembly and high cost of descaling caused by mechanical descaling in the prior art, but also avoids the corrosion of electrodes and environmental pollution caused by chemical descaling .

In this embodiment, since the spring 3 is sleeved on the electrode 2, in order to prevent the spring 3 from falling off from the bottom end of the electrode, there is a stopper at the bottom end of each electrode 2 for the stopper to be sleeved on the electrode. The spring comes off the bottom of the electrode. Due to the function of the stop part, the spring 3 is prevented from falling off from the bottom of the electrode 2, so as to ensure the stable operation of descaling.

In order to improve the stability of the connection between the floating device 4 and the spring 3 and facilitate the movement of the spring 3 up and down along the electrode 2 , the floating device 4 is sleeved on each spring 3 and fixedly connected with each spring 3 .

The central axis of the floating device 4 coincides with the central axis of the bucket body 1, which reduces the influence of bubbles generated by boiling water on the humidification process and improves the reliability of the humidification process. In this embodiment, the two metal contacts 6 are fixed at the center of the top surface of the bucket body 1, which reduces the influence of bubbles generated by boiling water on the humidification process and improves the reliability of the humidification process.

In this embodiment, the floating device 4 includes a horizontal part 4-1 and a vertical part 4-2, the horizontal part 4-1 and the vertical part 4-2 are perpendicular to each other, and the bottom surface of the vertical part 4-2 is connected to the horizontal part The center of 4-1 is fixed, as shown in Figure 4; the horizontal part 4-1 has several perforations adapted to several springs 3, the springs 3 are sleeved on the electrode 2, and pass through the corresponding perforations, and the springs 3 is fixed with the corresponding perforation; a metal conductor 5 is fixed on the top surface of the vertical part 4-2. By designing the above-mentioned floating device 4, it can be stably connected with the spring 3, which is convenient to drive the spring 3 to move up and down along the electrode 2 to improve the descaling effect, and can be stably connected with the metal conductor 5 to drive the metal conductor 5 to move upward to the set height Contact with metal contacts to realize water level monitoring.

In this embodiment, several electrodes 2 are evenly arranged around the central axis of the bucket body 1 in a circumferential direction, which can evenly heat the water in the bucket body 1 and improve the uniformity of humidification.

In this embodiment, there are three electrodes 2, and the three electrodes 2 are evenly arranged around the central axis of the barrel body 1, which not only avoids the cost increase caused by too many electrodes, but also avoids the slow humidification speed caused by too few electrodes , the horizontal part 4-1 of the floating device 4 is triangular, and each of the three corners is provided with a perforation, the spring 3 is sleeved on the electrode 2, and passes through the corresponding perforation, and the three springs are correspondingly fixed to the three perforations.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still be Modifications are made to the technical solutions described in the foregoing embodiments, or equivalent replacements are made to some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (7)

1. A humidifier, comprising:

a tub having an accommodation space;

a floating device located in the accommodating space, the floating device having a metal conductor thereon;

the water level detection device comprises a detection contact and a controller;

when the metal conductor moves upwards to a set height, the metal conductor is contacted with the detection contact, the controller detects whether the contact duration time of the detection contact and the metal conductor is greater than a set time threshold value, and if yes, the barrel body is controlled to drain water outwards for first set time;

when the controller detects that the time n that the duration time that the detection contact is in contact with the metal conductor is greater than the set time threshold exceeds the set time, controlling the barrel body to drain water for a second set time and sending an alarm; clearing the number n; wherein the second set time is longer than the first set time;

a plurality of electrodes of the humidifier are vertically arranged in the accommodating space; each electrode is sleeved with a spring, and the floating device is fixed with each spring;

the floating device is sleeved on each spring;

the electrode heats water to a boiling state, when the water is boiled, the spring sleeved on the electrode is driven to vibrate, and the spring rubs with the surface of the electrode.

2. The humidifier of claim 1, wherein said water level detection means comprises said controller, a dc power source, a current limiting resistor, said detection contacts;

the detection contact comprises two metal contacts arranged at intervals; one metal contact is connected with a direct current power supply, and the other metal contact is connected with a detection pin of the controller through a current-limiting resistor;

the controller detects whether the duration of the simultaneous contact of the two metal contacts and the metal conductor is greater than a set time threshold value, and if so, the barrel body is controlled to drain water outwards for a first set time.

3. The humidifier according to claim 2, wherein when the number n of times that the controller detects that the duration time that the two metal contacts are simultaneously contacted with the metal conductor is greater than the set time threshold exceeds the set number of times, the controller controls the tub body to drain water for a second set time and sends out an alarm, and the number n is cleared; wherein the second set time is greater than the first set time.

4. The humidifier of claim 1, wherein the bottom end of each electrode has a stop portion for stopping a spring fitted on the electrode from falling off.

5. The humidifier of claim 2, wherein a central axis of the float device coincides with a central axis of the tub; the two metal contacts are fixed at the center of the top end face of the barrel body.

6. The humidifier according to claim 1, wherein the floating device comprises a horizontal part and a vertical part which are perpendicular to each other, and a bottom end surface of the vertical part is fixed with a center of the horizontal part;

the horizontal part is provided with a plurality of through holes matched with a plurality of springs, and the springs penetrate through the corresponding through holes and are fixed with the corresponding through holes;

the metal conductor is fixed on the top end surface of the vertical part.

7. The humidifier of any one of claims 1-6, wherein the plurality of electrodes are uniformly circumferentially disposed about the central axis of the tub.

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