A high-precision humidity sensor

Abstract

The utility model discloses a high-precision humidity sensor, including a sensor housing and an arc-shaped shell located above the sensor housing, a humidity-sensitive element is fixedly installed inside the sensor housing, a conductor rod adapted to the humidity-sensitive element is fixedly installed on one side of the sensor housing and the arc-shaped shell by opening an opening, and a fixing cylinder is fixedly connected on the other side of the sensor housing. The utility model relates to the technical field of humidity sensors. The high-precision humidity sensor, through the action of a spring, enables a plurality of springs to support a plurality of protective plates, and the plurality of protective plates are arranged on the surface of the sensor housing. If the sensor housing falls, the plurality of protective plates will first contact the ground, and the protective plates are buffered by the spring, which can well reduce the impact force of the sensor housing falling, effectively prevent the humidity-sensitive element inside the sensor housing from being damaged by impact, can well protect the humidity sensor, and ensure the high precision of the humidity sensor.

Description

Technical Field

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

[0002] The humidity sensor collects data on the moisture in the air through a humidity-sensitive element, and feeds it back to the central processor through digital analog signals. According to the humidity conditions of the detected environment, a series of dehumidification and humidification measures are taken to make the environment reach an ideal state.

[0003] In order to accurately detect the humidity in the air, the humidity sensor must be exposed to the environment to be tested for a long time when detecting the ambient humidity;

[0004] During the use of the humidity sensor, the humidity sensor only uses a simple shell to protect the internal humidity-sensitive element. When the shell falls, it is easy to cause the internal humidity-sensitive element to be impacted and damaged, affecting the normal use of the humidity sensor. In addition, because the linearity and anti-pollution properties of the humidity-sensitive element are poor, it is easy to be contaminated and affect its measurement accuracy and long-term stability. Therefore, regular maintenance is required. However, the shell of the humidity sensor is integrated, and it is inconvenient to open the shell for maintenance. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a high-precision humidity sensor, which solves the problem that when the housing falls, the internal humidity sensitive element is easily impacted and damaged, and the housing of the humidity sensor is integrated, making it inconvenient to open the housing for maintenance.

[0006] To achieve the above objectives, the utility model is implemented through the following technical solutions: a high-precision humidity sensor, comprising a sensor housing and an arc-shaped shell located above the sensor housing, a humidity-sensitive element is fixedly installed inside the sensor housing, a conductor rod matching the humidity-sensitive element is fixedly installed on one side of the sensor housing and the arc-shaped shell through an opening, a fixing cylinder is fixedly connected to the other side of the sensor housing, a first thread groove is provided on the outer surface of the fixing cylinder, a first thread ring is threadedly connected to the outer surface of the first thread groove, a plurality of protective plates are rotatably connected to the outer surface of the fixing cylinder through a rotating frame, a spring is fixedly connected between the outer surface of the sensor housing and the plurality of protective plates, a fixing ring is fixedly connected to the outer surface of the first thread ring, and an annular push plate matching the protective plate is fixedly connected to one side of the fixing ring.

[0007] Preferably, the outer surface of the sensor housing and the outer surface of the arc-shaped shell are threadedly connected with a second thread groove, and the outer surface of the second thread groove is threadedly connected with a second thread ring.

[0008] Preferably, a threaded rod is threadedly connected to the upper portion of the outer surface of the second threaded ring through an opening, and a threaded hole matching the threaded rod is provided on the upper portion of the outer surface of the arc-shaped shell.

[0009] Preferably, the front and rear parts of the top of the sensor housing are both provided with sliding grooves.

[0010] Preferably, the front and rear parts of the bottom of the arc-shaped shell are fixedly connected with sliding plates adapted to the sliding grooves.

[0011] Preferably, a connecting line is provided on the other side of the sensor housing through an opening.

[0012] Beneficial Effects

[0013] The utility model provides a high-precision humidity sensor. Compared with the existing technology, it has the following advantages:

[0014] Beneficial effects:

[0015] (1) The utility model uses the force of springs to enable multiple springs to support multiple protective plates. The multiple protective plates are arranged on the surface of the sensor housing. If the sensor housing falls, the multiple protective plates will first touch the ground. The springs can be used to cushion the protective plates, which can effectively reduce the impact force of the sensor housing falling and effectively prevent the humidity sensitive elements inside the sensor housing from being damaged by the impact. The humidity sensor can be well protected, ensuring the high accuracy of the humidity sensor.

[0016] (2) The utility model rotates the threaded rod to disengage from the threaded hole, and then rotates the second threaded ring to move to the left so that the second threaded ring no longer covers the arc shell, and then pulls the arc shell upward, so that the arc shell can be easily disassembled, which is convenient for maintenance of the humidity sensitive element in the sensor housing, and maintains a high-precision detection effect for the humidity sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the external structure of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the sensor housing, arc-shaped shell, fixing cylinder, fixing ring and annular push plate of the utility model;

[0019] Figure 3 It is a structural schematic diagram of the sensor housing, arc-shaped housing, conductor rod, fixing cylinder, first thread groove, protection plate, spring and second thread groove of the utility model;

[0020] Figure 4 It is a structural schematic diagram of the sensor housing, arc-shaped housing, humidity-sensitive element, protective plate, second thread groove and sliding groove of the utility model;

[0021] Figure 5 It is a bottom view of the arc-shaped shell, the second thread groove, the sliding plate and the threaded hole structure of the utility model.

[0022] In the figure: 1. sensor housing; 2. arc-shaped shell; 3. humidity-sensitive element; 4. conductor rod; 5. fixing cylinder; 6. first thread groove; 7. protective plate; 8. first thread ring; 9. spring; 10. fixing ring; 11. annular push plate; 12. second thread groove; 13. second thread ring; 14. threaded rod; 15. slide groove; 16. sliding plate; 17. threaded hole; 18. connecting wire. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0024] See also Figure 1-5 The utility model provides a technical solution: a high-precision humidity sensor, comprising a sensor housing 1 and an arc-shaped shell 2 located above the sensor housing 1, a humidity-sensitive element 3 is fixedly installed inside the sensor housing 1, a connecting line 18 is provided on the other side of the sensor housing 1 through an opening, a conductor rod 4 adapted to the humidity-sensitive element 3 is fixedly installed on one side of the sensor housing 1 and the arc-shaped shell 2 through an opening, a fixing cylinder 5 is fixedly connected to the other side of the sensor housing 1, a first thread groove 6 is provided on the outer surface of the fixing cylinder 5, a first thread ring 8 is threadedly connected to the outer surface of the first thread groove 6, a plurality of protective plates 7 are rotatably connected to the outer surface of the fixing cylinder 5 through a rotating frame, a spring 9 is fixedly connected between the outer surface of the sensor housing 1 and the plurality of protective plates 7, a fixing ring 10 is fixedly connected to the outer surface of the first thread ring 8, and a ring-shaped pushing plate 11 adapted to the protective plate 7 is fixedly connected to one side of the fixing ring 10.

[0025] It should be noted that, by rotating the first threaded ring 8, the first threaded ring 8 drives the push plate 11 to move to the right through the fixed ring 10, so that the push plate 11 pushes the multiple protective plates 7 to the right, so that the protective plates 7 are rotated and tilted, and the angles of the multiple protective plates 7 gradually become smaller, so that the angles of the multiple protective plates 7 can be conveniently adjusted, and the space occupied by the multiple protective plates 7 can be greatly reduced.

[0026] Furthermore, in order to facilitate opening the arc shell 2 for maintenance of the humidity sensitive element 3, the outer surface of the sensor housing 1 and the outer surface of the arc shell 2 are threadedly connected with a second thread groove 12, the outer surface of the second thread groove 12 is threadedly connected with a second thread ring 13, and the upper part of the outer surface of the second thread ring 13 is threadedly connected with a threaded rod 14 through an opening, and a threaded hole 17 compatible with the threaded rod 14 is opened above the outer surface of the arc shell 2, and a slide groove 15 is opened at the front and rear of the top of the sensor housing 1, and a sliding plate 16 compatible with the slide groove 15 is fixedly connected to the front and rear of the bottom of the arc shell 2.

[0027] When in use, the threaded rod 14 is rotated to rotate the threaded rod 14 out of the threaded hole 17, and then the second threaded ring 13 is rotated to move the second threaded ring 13 to the left on the surface of the sensor housing 1, so that the second threaded ring 13 moves out of the arc shell 2, and then the arc shell 2 is pulled upward, and the sliding plate 16 on the arc shell 2 moves out of the slide groove 15, so that the arc shell 2 can be disassembled for maintenance;

[0028] When the sensor housing 1 falls as a whole, the surface of the sensor housing 1 is shielded by multiple protective plates 7, so that the protective plates 7 touch the ground first. Through the force of the spring 9, the multiple protective plates 7 contact the ground to provide support and buffer, so that the multiple protective plates 7 shield and protect the sensor housing 1.

Claims

1. A high-precision humidity sensor, comprising a sensor housing (1) and an arc-shaped housing (2) located above the sensor housing (1), characterized in that: A humidity sensitive element (3) is fixedly installed inside the sensor housing (1); a conductor rod (4) matching the humidity sensitive element (3) is fixedly installed on one side of the sensor housing (1) and the arc-shaped housing (2) through an opening; a fixing cylinder (5) is fixedly connected to the other side of the sensor housing (1); a first thread groove (6) is provided on the outer surface of the fixing cylinder (5); a first thread ring (8) is threadedly connected to the outer surface of the first thread groove (6); a plurality of protective plates (7) are rotatably connected to the outer surface of the fixing cylinder (5) via a rotating frame; a spring (9) is fixedly connected between the outer surface of the sensor housing (1) and the plurality of protective plates (7); a fixing ring (10) is fixedly connected to the outer surface of the first thread ring (8); and an annular push plate (11) matching the protective plate (7) is fixedly connected to one side of the fixing ring (10).

2. A high-precision humidity sensor according to claim 1, characterized in that: The outer surface of the sensor housing (1) and the outer surface of the arc-shaped housing (2) are threadedly connected to a second thread groove (12), and the outer surface of the second thread groove (12) is threadedly connected to a second thread ring (13).

3. A high-precision humidity sensor according to claim 2, characterized in that: A threaded rod (14) is threadedly connected to the upper portion of the outer surface of the second threaded ring (13) through an opening, and a threaded hole (17) matching the threaded rod (14) is provided on the upper portion of the outer surface of the arc-shaped shell (2).

4. A high-precision humidity sensor according to claim 1, characterized in that: The front and rear parts of the top of the sensor housing (1) are both provided with sliding grooves (15).

5. A high-precision humidity sensor according to claim 4, characterized in that: The front and rear parts of the bottom of the arc-shaped shell (2) are fixedly connected with sliding plates (16) that are compatible with the sliding grooves (15).

6. A high-precision humidity sensor according to claim 1, characterized in that: A connecting line (18) is provided on the other side of the sensor housing (1) by opening an opening.

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