Novel humidity sensor

Abstract

The utility model discloses a novel humidity sensor, which comprises a shell and a bottom box, and a humidity sensing module is fixedly arranged in the shell. The beneficial effects of the utility model are that when using, staff can start the electromagnet and the temperature sensing module through the switch, the electromagnet is started to attract the iron ring through magnetic force, the iron ring moves upwards to pull the side cylinder to move upwards, the side hole is opened, ventilation is carried out, external air enters the housing, and the humidity sensing module detects the air humidity; when the humidity sensing module is not used, the switch is turned off, the electromagnet is powered off, the spring rebounds, the inner rod and the side cylinder are pulled to reset, and the side hole is closed, so that external air is prevented from entering the shell, and the situation that the humidity sensing module is damaged and the service life is affected due to the fact that humid air continuously affects the temperature sensing module is avoided; the device is quick in action, high in working efficiency, simple in structure, low in manufacturing cost and use cost and very convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of humidity sensors, in particular to a novel humidity sensor. Background Art

[0002] Humidity sensors usually use an integrated temperature and humidity probe as the terminal element to collect humidity or temperature signals, and the elements for collection and analysis are usually composed of chips and circuit boards.

[0003] After searching, it was found that the publication number is CN215678298U, and the name is a new type of humidity sensor. The application proposes that the sensor elements are often exposed to a humid environment and are often damaged by moisture erosion, which will also affect the service life and detection accuracy of the sensor. The main gear is driven to rotate back and forth by the rotating shaft, and the main gear will drive a circle of sub-gears meshing with it on the side wall to rotate synchronously. The sub-gear will drive the arc-shaped spring piece and the semi-circular plugging piece at the end to either block the detection hole or slide out of the detection hole. The elastic effect of the semi-circular plugging piece and the arc-shaped spring piece can form a close fit with the inner edge of the detection hole and avoid external Water vapor enters through the main gear and the small-sized sub-gear, and the six arc-shaped spring pieces can be rotated and displaced at the same time when rotating, and can be moved sideways to make way for the detection hole when detection is required. The limit shaft can limit the support of the sub-gear so that it can rotate smoothly. However, this application uses a stepper motor and a complex gear structure to close the detection hole. The structure is very complex, the stepper motor is expensive, and the production, use and maintenance are also relatively troublesome. There are inconveniences in use, and further improvements can be made. At the same time, after the moisture-absorbing cotton is saturated, it will produce moisture when it is left stationary, which will cause the internal humidity to increase, and replacement is also more troublesome, and further improvements can be made.

[0004] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides a novel humidity sensor, which has the advantages of simple structure, low cost, convenient use and high working efficiency, thereby solving the problems in the above-mentioned background technology.

[0007] (II) Technical solution

[0008] In order to achieve the above advantages of simple structure, low cost, convenient use and high working efficiency, the specific technical solutions adopted by the utility model are as follows:

[0009] A novel humidity sensor comprises a shell and a bottom box, wherein a humidity sensing module is fixedly installed inside the shell, and an air pump is fixedly installed on one side of the humidity sensing module inside the shell, and a bottom box is fixedly installed on the bottom surface of the shell, a top ring is fixedly installed on the outer surface of the top of the shell, and an electromagnet is fixedly installed on the bottom surface of the top ring, a side hole is penetrated through the outer surface of the shell, and a side tube is slidably sleeved on the outer wall of the shell outside the side hole, and an iron ring is fixedly connected to the top surface of the side tube, a bottom ring is fixedly connected to the outer wall of the shell below the side hole, and an outer tube is fixedly installed on the top surface of the bottom ring, and an inner rod is penetrated and inserted on the top surface of the outer tube, the bottom surface of the inner rod is fixedly connected to the inner bottom surface of the outer tube through a spring, and the top surface of the inner rod is fixedly connected to the top surface of the side tube, the bottom box is filled with a dehumidifying molecular sieve, and a bottom cover is sleeved on the bottom surface of the bottom box, an air outlet end of the air pump is connected to the bottom box through an air supply pipe, and a top surface of the other end of the bottom box is located on the other side of the humidity sensing module and is connected with a reflux pipe, and the reflux pipe extends to the inside of the shell.

[0010] Furthermore, a switch is fixedly mounted on the top surface of the housing, and an output end of the switch is electrically connected to the electromagnet, the humidity sensor and an input end of the vacuum pump respectively.

[0011] Furthermore, the bottom surface of the bottom box is provided with an external thread, the inner wall of the bottom cover is provided with an internal thread, and the internal thread and the external thread cooperate with each other.

[0012] Furthermore, the outer cylinders and the inner rods are arranged in multiple groups, and the outer cylinders and the inner rods are distributed at equal angles along the central axis of the outer cylinder.

[0013] Furthermore, the spring tension is smaller than the magnetic force between the electromagnet and the iron ring.

[0014] Furthermore, the side holes are arranged in plurality.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the utility model provides a new type of humidity sensor, which has the following beneficial effects:

[0017] (1) The utility model adopts an electromagnet and a side tube. When in use, the staff can start the electromagnet and the temperature sensor module through a switch. The electromagnet starts to attract the iron ring through magnetic force. The iron ring moves up and pulls the side tube up to open the side hole for ventilation. The outside air enters the inside of the shell. The humidity sensor module detects the air humidity. When the humidity sensor module is not in use, the switch is turned off, the electromagnet is powered off, the spring rebounds, and the inner rod and the side tube are pulled back to reset, closing the side hole to prevent outside air from entering the shell and humid air from continuously affecting the temperature sensor module, causing damage to the humidity sensor module and affecting its service life. The side hole is opened and closed by turning the electromagnet on and off, with fast action and high work efficiency. At the same time, the structure is simple, the cost and use cost are low, and it is very convenient to use.

[0018] (2) The utility model adopts a dehumidification molecular sieve and an air pump. When the side tube is closed, the staff can start the air pump. The air pump draws air from the inside of the shell and injects it into the dehumidification molecular sieve through the air pipe for dehumidification. The dry air after dehumidification flows back to the inside of the shell through the return pipe for air drying. The dried air is conducive to the long-term storage and use of the humidity sensor module. The dehumidification molecular sieve will not return to moisture when it is static. The inside of the shell can remain dry for a long time, and the work efficiency is higher. The staff can rotate and remove the bottom cover and replace the saturated dehumidification molecular sieve without opening the shell. Maintenance and replacement are very convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 This is a schematic diagram of the external structure of a new type of humidity sensor proposed by the utility model when the side tube is closed;

[0021] Figure 2 This is a schematic diagram of the external structure of a new type of humidity sensor proposed by the utility model when the side tube is opened;

[0022] Figure 3 This is a schematic diagram of the internal structure of a novel humidity sensor proposed by the utility model;

[0023] Figure 4 This is an enlarged view of node A of a novel humidity sensor proposed by the utility model.

[0024] In the figure:

[0025] 1. Outer shell; 2. Bottom box; 3. Dehumidifying molecular sieve; 4. Bottom cover; 5. Humidity sensor module; 6. Vacuum pump; 7. Air pipe; 8. Top ring; 9. Electromagnet; 10. Iron ring; 11. Side tube; 12. Side hole; 13. Bottom ring; 14. Reflux pipe; 15. Switch; 16. Outer tube; 17. Inner rod; 18. Spring. DETAILED DESCRIPTION

[0026] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementation methods and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0027] According to an embodiment of the utility model, a novel humidity sensor is provided.

[0028] The present invention is now further described in conjunction with the accompanying drawings and specific implementation methods. Figure 1-4 As shown, a new type of humidity sensor according to an embodiment of the utility model includes a shell 1 and a bottom box 2, a humidity sensing module 5 is fixedly installed inside the shell 1, and an air pump 6 is fixedly installed on one side of the humidity sensing module 5 located inside the shell 1, and the air pump 6 adopts a micro pump, which can be purchased on the market, and the bottom surface of the shell 1 is fixedly installed with the bottom box 2, the top outer surface of the shell 1 is fixedly installed with a top ring 8, and the bottom surface of the top ring 8 is fixedly installed with an electromagnet 9, the electromagnet 9 adopts a ring structure, and the outer surface of the shell 1 is penetrated by a side hole 12 , and the side hole 12 is located outside the outer wall of the shell 1 and is slidably sleeved with a side tube 11, and the top surface of the side tube 11 is fixedly connected with an iron ring 10, and the bottom ring 13 is located below the side hole 12 and is fixedly connected to the outer wall of the shell 1, and the top surface of the bottom ring 13 is fixedly installed with an outer tube 16, and the top surface of the outer tube 16 is penetrated and inserted with an inner rod 17, the bottom surface of the inner rod 17 is fixedly connected to the inner bottom surface of the outer tube 16 through a spring 18, and the top surface of the inner rod 17 is fixedly connected to the top surface of the side tube 11, and the bottom box 2 is filled with a dehumidification molecular sieve 3, and the dehumidification molecular sieve 3 fills the bottom box 2 , and the bottom surface of the bottom box 2 is sleeved with a bottom cover 4, the air outlet end of the vacuum pump 6 is connected to the bottom box 2 through the air supply pipe 7, and the top surface of the other end of the bottom box 2 is located on the other side of the humidity sensor module 5 and is connected with a return pipe 14, and the return pipe 14 extends to the inside of the shell 1. When in use, the staff can start the electromagnet 9 and the temperature sensor module through the switch 15. The electromagnet 9 is started and attracts the iron ring 10 through magnetic force. The iron ring 10 moves up and pulls the side tube 11 up, opens the side hole 12, and ventilates, and the outside air enters the inside of the shell 1. The humidity sensor module 5 detects the air humidity. When the humidity sensor module 5 is not in use, the switch 15 is turned off, the electromagnet 9 is powered off, the spring 18 rebounds, the inner rod 17 and the side tube 11 are pulled to reset, and the side hole 12 is closed to prevent outside air from entering the outer shell 1, and to prevent humid air from continuously affecting the temperature sensor module, causing the humidity sensor module 5 to be damaged and affecting its service life. The side hole 12 is opened and closed by turning the electromagnet 9 on and off, with fast action and high work efficiency. At the same time, the structure is simple, the cost and use cost are low, and it is very convenient to use.

[0029] In one embodiment, a switch 15 is fixedly installed on the top surface of the shell 1, and the output end of the switch 15 is electrically connected to the input end of the electromagnet 9, the humidity sensor and the vacuum pump 6 respectively. There are two switches 15, one of which controls the electromagnet 9 and the humidity sensor, and the other controls the vacuum pump 6. When the side tube 11 is closed, the staff can start the vacuum pump 6. The vacuum pump 6 extracts air from the inside of the shell 1 and injects it into the dehumidification molecular sieve 3 through the air pipe 7 for dehumidification. The dry air after dehumidification flows back to the inside of the shell 1 through the return pipe 14 for air drying. The dried air is conducive to the long-term storage and use of the humidity sensor module 5. The dehumidification molecular sieve 3 will not return to moisture when it is stationary. The inside of the shell 1 can remain dry for a long time, and the work efficiency is higher. The staff can rotate to remove the bottom cover 4 and replace the saturated dehumidification molecular sieve 3 without opening the shell 1, which is very convenient for maintenance and replacement.

[0030] In one embodiment, the bottom surface of the bottom box 2 is provided with an external thread, and the inner wall of the bottom cover 4 is provided with an internal thread, and the internal thread and the external thread cooperate with each other, which is a common connection form and will not be described in detail here.

[0031] In one embodiment, the outer cylinder 16 and the inner rod 17 are arranged in multiple groups, and the outer cylinder 16 and the inner rod 17 are distributed at equal angles along the central axis of the outer cylinder 16 to improve the stability of the connection.

[0032] In one embodiment, the tension of the spring 18 is smaller than the magnetic force between the electromagnet 9 and the iron ring 10, so that the iron ring 10 and the side tube 11 can be moved upward by the magnetic force.

[0033] In one embodiment, a plurality of side holes 12 are arranged to improve ventilation efficiency.

[0034] Working principle:

[0035] When in use, the staff can start the electromagnet 9 and the temperature sensor module through the switch 15. The electromagnet 9 starts to attract the iron ring 10 through magnetic force. The iron ring 10 moves up to pull the side tube 11 up, open the side hole 12, and ventilate. The outside air enters the inside of the shell 1, and the humidity sensor module 5 detects the air humidity. When the humidity sensor module 5 is not in use, the switch 15 is turned off, the electromagnet 9 is powered off, the spring 18 rebounds, and the inner rod 17 and the side tube 11 are pulled back to reset, and the side hole 12 is closed to prevent the outside air from entering the shell 1, and to prevent the humid air from continuously affecting the temperature sensor module, causing the humidity sensor module 5 to be damaged and affecting its service life. The opening and closing of the side hole 12 is completed by turning the electromagnet 9 on and off, and the action is fast. The invention has the advantages of high speed and high working efficiency, simple structure, low manufacturing cost and use cost, and is very convenient to use. At the same time, when the side tube 11 is closed, the staff can start the vacuum pump 6, and the vacuum pump 6 extracts the air inside the shell 1, and injects it into the dehumidification molecular sieve 3 through the air supply pipe 7 for dehumidification. The dry air after dehumidification flows back to the inside of the shell 1 through the reflux pipe 14 for air drying. The dried air is conducive to the long-term storage and use of the humidity sensor module 5. The dehumidification molecular sieve 3 will not return to moisture when it is stationary. The inside of the shell 1 can remain dry for a long time, and the working efficiency is higher. The staff can rotate to remove the bottom cover 4 and replace the saturated dehumidification molecular sieve 3 without opening the shell 1, which is very convenient for maintenance and replacement.

[0036] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A new type of humidity sensor, characterized in that: The invention comprises a housing (1) and a bottom box (2), wherein a humidity sensor module (5) is fixedly installed inside the housing (1), and an air pump (6) is fixedly installed on one side of the humidity sensor module (5) inside the housing (1), and the bottom box (2) is fixedly installed on the bottom surface of the housing (1), a top ring (8) is fixedly installed on the top outer surface of the housing (1), and an electromagnet (9) is fixedly installed on the bottom surface of the top ring (8), a side hole (12) is penetrated through the outer surface of the housing (1), and a side tube (11) is slidably sleeved on the outer wall of the housing (1) outside the side hole (12), and an iron ring (10) is fixedly connected to the top surface of the side tube (11), and a metal ring (10) is fixedly connected to the outer wall of the housing (1) below the side hole (12). A bottom ring (13) is provided, and an outer cylinder (16) is fixedly mounted on the top surface of the bottom ring (13), and an inner rod (17) is inserted through the top surface of the outer cylinder (16), the bottom surface of the inner rod (17) is fixedly connected to the inner bottom surface of the outer cylinder (16) through a spring (18), and the top surface of the inner rod (17) is fixedly connected to the top surface of the side cylinder (11), the bottom box (2) is filled with a dehumidifying molecular sieve (3), and the bottom surface of the bottom box (2) is sleeved with a bottom cover (4), the air outlet end of the vacuum pump (6) is connected to the bottom box (2) through an air delivery pipe (7), and the top surface of the other end of the bottom box (2) is located on the other side of the humidity sensor module (5) and is connected through a return pipe (14), and the return pipe (14) extends to the inside of the housing (1).

2. A novel humidity sensor according to claim 1, characterized in that: A switch (15) is fixedly mounted on the top surface of the housing (1), and an output end of the switch (15) is electrically connected to an electromagnet (9), a humidity sensor and an input end of an air pump (6) respectively.

3. A novel humidity sensor according to claim 1, characterized in that: The bottom surface of the bottom box (2) is provided with an external thread, the inner wall of the bottom cover (4) is provided with an internal thread, and the internal thread and the external thread cooperate with each other.

4. A novel humidity sensor according to claim 1, characterized in that: The outer cylinder (16) and the inner rod (17) are arranged in multiple groups, and the outer cylinder (16) and the inner rod (17) are distributed at equal angles along the central axis of the outer cylinder (16).

5. A novel humidity sensor according to claim 1, characterized in that: The pulling force of the spring (18) is smaller than the magnetic force between the electromagnet (9) and the iron ring (10).

6. A novel humidity sensor according to claim 1, characterized in that: The side holes (12) are arranged in plurality.

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