High-precision temperature and humidity sensor with packaging structure

Abstract

The utility model relates to the field of temperature and humidity sensors, and discloses a high-precision temperature and humidity sensor with a packaging structure, which comprises a base, an upper cover is arranged at the top of the base, the base and the upper cover are fixedly connected through a mounting bolt, a PCB (printed circuit board) is arranged at the top of the base, the PCB and the base are fixedly connected through a fastening bolt, and the packaging structure is arranged on the PCB. The device comprises a base, a detection mechanism is arranged in the base, the detection mechanism comprises a plurality of mounting plates and a signal box, probes are arranged on the sides, away from each other, of the mounting plates, and contacts are arranged on the surfaces of the mounting plates. According to the utility model, through the cooperation of the signal box, the mounting plate and the mounting mechanism, when the equipment is mounted in different directions and orientations, the position of the probe on the mounting plate is changed by changing the position of the mounting plate in the slot on the base, so that the mounting adaptability and the detection accuracy of temperature and humidity detection in different environments are improved.

Description

Technical Field

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

[0002] The high-precision temperature and humidity sensor is an important innovation in modern technology. It can not only measure the ambient temperature and relative humidity, but also provide accurate air pressure data. Therefore, it is applicable to many fields, such as meteorology, environmental science, etc. The working principle of the high-precision temperature and humidity sensor stems from two basic physical laws, namely thermodynamics and heat transport. The sensor consists of a temperature and humidity element and an air pressure element. By measuring the resistance values of the temperature element and the humidity element, the values of temperature and relative humidity can be obtained. The law of thermodynamics is applied, while the air pressure element is realized through the law of heat transport to measure the changes in air pressure and temperature. Through the combination of these values, very accurate environmental monitoring data can be obtained.

[0003] After retrieval, the Chinese patent publication number: CN221376704U discloses a packaging structure of a high-precision temperature and humidity sensor, which includes a main shell, a sub-shell attached to one side of the main shell, and a PCB board inserted inside the main shell and the sub-shell. A connection groove is opened on the front surface of the main shell, a connection block inserted inside the connection groove is fixedly installed on the back surface of the sub-shell, a rod groove is opened on the inner wall of the connection groove, a clamping rod is slidably connected inside the rod groove, one side of the main shell is rotatably connected with a screw rod extending into the rod groove, one end of the screw rod is threadedly connected inside the clamping rod, one end of the clamping rod penetrates through the rod groove and extends into the connection groove, a clamping groove is opened on the other side of the inner wall of the connection groove, one end of the clamping rod penetrates through the connection block and extends into the clamping groove, and a probe is fixedly connected to one side of the PCB board.

[0004] This patent can separate the main shell and the sub-shell by pulling the main and sub-shells, so as to take out the PCB board, making the disassembly of the high-precision temperature and humidity sensor more convenient and effectively improving the maintenance efficiency of the high-precision temperature and humidity sensor. However, during temperature and humidity detection, the installation environment is relatively complex. In some environments, the installation space is narrow or the space volume is small, which limits the installation orientation and direction of the device, making it difficult to control the orientation of the probe, not conducive to the probe being in a well-ventilated place environment, and the flexibility of probe orientation adjustment is low, thus reducing the accuracy of temperature and humidity detection. Moreover, in existing devices, when disassembling and maintaining the probe, it is often necessary to disassemble the whole device for operation, resulting in low maintenance efficiency. Therefore, a high-precision temperature and humidity sensor with a packaging structure is proposed to solve the above problems. Summary of the Invention

[0005] To make up for the above deficiencies, the present utility model provides a high-precision temperature and humidity sensor with a packaging structure, aiming to improve the problem in the prior art that "installing equipment in an environment with narrow space or small space volume reduces the accuracy of temperature and humidity detection".

[0006] To achieve the above object, the present utility model adopts the following technical solution: A high-precision temperature and humidity sensor with a packaging structure, including a base, an upper cover is arranged on the top of the base, a PCB board is arranged on the top of the base, a detection mechanism is arranged inside the base, the detection mechanism includes a mounting plate and a signal box, the number of the mounting plates is set to be multiple, probes are arranged on one side of the multiple mounting plates away from each other, contacts are arranged on the surface of the mounting plate, a mounting mechanism is arranged inside the mounting plate, the mounting mechanism includes a control rod, a limiting rod, and a wedge block, the limiting rod is slidably mounted on the inner wall of the mounting plate, the control rod is fixedly mounted on the surface of the limiting rod, the number of the limiting rods is set to be multiple, the wedge block is fixedly mounted on one side of the multiple limiting rods away from each other, and one side of the multiple limiting rods close to each other is elastically connected by a spring.

[0007] As a further description of the above technical solution:

[0008] Slots are opened around the base, and limiting grooves are opened on the inner walls of the slots.

[0009] As a further description of the above technical solution:

[0010] The mounting plate is inserted into the inner wall of the slot.

[0011] As a further description of the above technical solution:

[0012] A cable bracket is fixedly connected to the top of the PCB board, and a wire passing hole is opened on the back of the base.

[0013] As a further description of the above technical solution:

[0014] Mounting grooves are opened around the signal box.

[0015] As a further description of the above technical solution:

[0016] The mounting plate is installed inside the mounting groove.

[0017] As a further description of the above technical solution:

[0018] The base and the upper cover are fixedly connected by mounting bolts.

[0019] As a further description of the above technical solution:

[0020] The PCB board and the base are fixedly connected by fastening bolts.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, through the cooperation of the signal box, the mounting plate and the mounting mechanism, when the device is installed in different orientations, by changing the position of the mounting plate in the slot on the base, the position of the probe on the mounting plate can be changed, improving the installation adaptability and detection accuracy of temperature and humidity detection in different environments.

[0023] 2. In the utility model, through the cooperation of the control rod, the limiting rod, the spring, the wedge block, the slot and the limiting groove, the orientation of the mounting plate on the device can be changed without disassembling the PCB board and the upper cover, which is more convenient and fast during disassembly and replacement, and can be reused, effectively improving the maintenance efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a front view schematic diagram of the overall three-dimensional structure in the utility model;

[0025] Figure 2 is a rear view schematic diagram of the overall three-dimensional exploded structure in the utility model;

[0026] Figure 3 is a schematic diagram of the overall three-dimensional exploded structure of the utility model without the upper cover;

[0027] Figure 4 is a schematic sectional view of the three-dimensional exploded structure of the signal box, the mounting plate and the mounting mechanism in the utility model.

[0028] LEGEND DESCRIPTION:

[0029] 1. Base; 2. Upper cover; 3. Mounting bolt; 4. PCB board; 5. Fastening bolt; 6. Mounting plate; 7. Probe; 8. Contact; 9. Signal box; 10. Mounting groove; 11. Control rod; 12. Limiting rod; 13. Spring; 14. Wedge block; 15. Slot; 16. Limiting groove; 17. Cable bracket; 18. Wire passing hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0031] Refer to Figure 1 、 Figure 2, An embodiment provided by the present utility model: A high-precision temperature and humidity sensor with a packaging structure, including a base 1, a top cover 2 is arranged on the top of the base 1, through holes are opened on the surface of the top cover 2 for air flow exchange, and a dust-proof net is arranged in the through holes to reduce dust from entering the device during air exchange. The base 1 and the top cover 2 are fixedly connected by mounting bolts 3. A PCB board 4 is arranged on the top of the base 1. By adopting a method of detecting with multiple sensors, high-precision temperature and humidity measurement is realized, which is the prior art. The PCB board 4 and the base 1 are fixedly connected by fastening bolts 5. By removing the fastening bolts 5, the PCB board 4 can be taken off from above the base 1 for maintenance. A detection mechanism is arranged inside the base 1.

[0032] Refer to Figure 1 - Figure 3 , The detection mechanism includes a mounting plate 6 and a signal box 9. The number of mounting plates 6 is set to be multiple. Probes 7 for detecting and sampling temperature and humidity in the environment are arranged on one side of the multiple mounting plates 6 away from each other, which is the prior art. Contacts 8 are arranged on the surface of the mounting plate 6 to facilitate signal transmission and connection. An installation mechanism is arranged inside the mounting plate 6, and the installation mechanism includes a control rod 11, a limiting rod 12, and a wedge block 14.

[0033] Refer to Figure 3 , Figure 4 , The limiting rod 12 is slidably installed on the inner wall of the mounting plate 6. The control rod 11 is fixedly installed on the surface of the limiting rod 12. The control rod 11 is arranged on the surface of the limiting rod 12 away from the signal box 9. The number of limiting rods 12 is set to be multiple. The wedge block 14 is fixedly installed on one side of the multiple limiting rods 12 away from each other. An inclined surface is arranged on the surface of the wedge block 14 to play a role of one-way limitation. One side of the multiple limiting rods 12 close to each other is elastically connected by a spring 13. By setting the spring 13, the multiple limiting rods 12 have a tendency to move away from each other.

[0034] Refer to Figure 2 - Figure 4 , Slots 15 are opened around the base 1, and limiting grooves 16 are opened on the inner walls of the slots 15. The mounting plate 6 is inserted into the inner wall of the slot 15. Mounting grooves 10 matching the mounting plate 6 are opened around the signal box 9. The mounting plate 6 is installed inside the mounting groove 10. Data processing and data transmission devices are arranged inside the signal box 9. The temperature and humidity data detected by the probe 7 are processed and then transmitted to the PCB board 4 and finally transmitted to the outside, which is the prior art.

[0035] Refer to Figure 2, a cable bracket 17 is fixedly connected to the top of the PCB board 4, which can fix the connection between the PCB board 4 and the external data transmission cable, facilitating the transmission of the detected temperature and humidity data to the outside through the cable. A wire passing hole 18 is provided on the back of the base 1, which is convenient for organizing and storing the wires and cables on the PCB board 4, improving the aesthetics and neatness.

[0036] Working principle: When in use, first check whether the states of all components are normal. Fix the PCB board 4 inside the base 1 by tightening the fastening bolts 5, then align the upper cover 2 with the base 1, and fix the upper cover 2 on the surface of the base 1 by tightening the mounting bolts 3 to complete the overall encapsulation.

[0037] When in use, according to the orientation and direction of the equipment installation, adjust the position of the probe 7 on the mounting plate 6 on the equipment accordingly to improve the detection accuracy. Drive the two groups of limit rods 12 to move closer to each other against the elastic force of the spring 13 by moving the control rod 11, so that the wedge block 14 disengages from the inside of the limit slot 16, and then the mounting plate 6 can be pulled, causing the mounting plate 6 to move inside the slot 15 and driving the contact 8 to disengage from the inside of the mounting groove 10, thus conveniently and quickly removing the probe 7 on the mounting plate 6 from the inside of the base 1. Then insert the mounting plate 6 into the mounting groove 10 inside the appropriate signal box 9, and make the wedge block 14 snap into the limit slot 16 to complete the limit fixation. There is no need to disassemble the PCB board 4 and the upper cover 2, which is more convenient and fast during disassembly and replacement, and can be reused, effectively improving the maintenance efficiency.

[0038] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A high-precision temperature and humidity sensor with a packaging structure, comprising a base (1), characterized in that: A top cover (2) is provided on the top of the base (1). A PCB board (4) is provided on the top of the base (1). A detection mechanism is provided inside the base (1). The detection mechanism includes a mounting plate (6) and a signal box (9). The number of the mounting plates (6) is set to be multiple. Probes (7) are provided on one side of the multiple mounting plates (6) away from each other. Contacts (8) are provided on the surface of the mounting plate (6). An installation mechanism is provided inside the mounting plate (6). The installation mechanism includes a control rod (11), a limiting rod (12), and a wedge block (14). The limiting rod (12) is slidably mounted on the inner wall of the mounting plate (6). The control rod (11) is fixedly mounted on the surface of the limiting rod (12). The number of the limiting rods (12) is set to be multiple. The wedge block (14) is fixedly mounted on one side of the multiple limiting rods (12) away from each other. One side of the multiple limiting rods (12) close to each other is elastically connected by a spring (13).

2. The high-precision temperature and humidity sensor with a packaging structure according to claim 1, wherein: Slots (15) are provided around the base (1). Limit grooves (16) are provided on the inner walls of the slots (15).

3. The high-precision temperature and humidity sensor with a packaging structure according to claim 2, characterized in that: The mounting plate (6) is inserted into the inner wall of the slot (15).

4. A high-precision temperature and humidity sensor with a packaging structure according to claim 1, characterized in that: A cable support (17) is fixedly connected to the top of the PCB board (4). A wire passing hole (18) is provided on the back of the base (1).

5. The high-precision temperature and humidity sensor with a packaging structure according to claim 1, wherein: Mounting grooves (10) are provided around the signal box (9).

6. The high-precision temperature and humidity sensor with a packaging structure according to claim 5, characterized in that: The mounting plate (6) is mounted inside the mounting groove (10).

7. The high-precision temperature and humidity sensor with a packaging structure according to claim 1, wherein: The base (1) and the top cover (2) are fixedly connected by mounting bolts (3).

8. A high-precision temperature and humidity sensor with a packaging structure according to claim 1, characterized in that: The PCB board (4) and the base (1) are fixedly connected by fastening bolts (5).

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