LCD hygrothermograph with humiture precision manual compensation circuit
By designing manual compensation circuit and storage IC in LCD thermometers, the problem of deviation in the accuracy of the thermometer is solved, and timely compensation of accuracy and accuracy of detection data are achieved.
Patent Information
- Application Number
- CN202422254984.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-14
- Publication Date
- 2025-06-20
- Estimated Expiration
- 2034-09-14
AI Technical Summary
During use, the temperature and humidity accuracy of existing temperature and humidity may deviate, and the temperature and humidity cannot be compensated in time by hand adjustment, resulting in poor accuracy and affecting the detection data results.
An LCD temperature and humidity meter with a manual compensation circuit for temperature and humidity accuracy was designed. The plug-in storage IC was used to store compensation data, and the accuracy compensation was manually performed through a single key or two-key bond to ensure that the meter body accuracy was always in the best state.
Timely compensation for temperature and humidity accuracy is achieved, accuracy deviation is avoided, and the accuracy and reliability of the detection data are ensured.
Smart Images
Figure CN223005570U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of thermohygrometers, in particular to an LCD thermohygrometer with a manual compensation circuit for temperature and humidity accuracy. Background Technique
[0002] Thermohygrometers are generally used to measure the temperature and humidity of the environment to determine the environmental conditions for product production or storage, and are also applied to people's daily lives, with relatively wide applications. For example, there are places such as municipal, household, agricultural greenhouses, gardens, and factories that need to test temperature and humidity.
[0003] During the use of existing thermohygrometers, the accuracy of temperature and humidity may deviate, and it is impossible to compensate for the temperature and humidity accuracy in a timely manner through manual adjustment, resulting in poor accuracy of the thermohygrometer and affecting the detected data results. Content of the Utility Model
[0004] The purpose of the utility model is to solve the following disadvantages in the prior art. During the use of existing thermohygrometers, the accuracy of temperature and humidity may deviate, and it is impossible to compensate for the temperature and humidity accuracy in a timely manner through manual adjustment, resulting in poor accuracy of the thermohygrometer and affecting the detected data results. Therefore, an LCD thermohygrometer with a manual compensation circuit for temperature and humidity accuracy is proposed.
[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:
[0006] An LCD thermohygrometer with a manual compensation circuit for temperature and humidity accuracy includes a meter body. The body is composed of a front shell and a rear shell. A plurality of insertion rods are fixedly installed on the inner wall of the front shell. The plurality of insertion rods are symmetrically arranged in pairs at the upper, middle, and lower parts of the inner wall of the front shell respectively. A plurality of insertion cylinders for the plurality of insertion rods to insert are fixedly installed on the inner wall of the rear shell. A PCB board is clamped in the front shell. A single key and a two - key are arranged on the surface of the front shell and both are in contact with the PCB board. Semi - ring plates are arranged at the tops of the front shell and the rear shell. The two semi - ring plates are clamped with a detection head through a clamping component;
[0007] An observation port is opened on the surface of the front shell. A transparent cover is fixedly embedded in the observation port. An LCD display screen for telecommunications connection with the PCB board is arranged on the back of the transparent cover. A storage IC is externally hung on the back of the LCD display screen. The storage IC is used to save compensation data. Two battery slots for placing No. 5 batteries are opened on the surface of the rear shell. A battery cover is clamped at the notch of the battery slot.
[0008] Preferably, a U-shaped decorative strip is provided at the bottom of the meter body. U-shaped mounting openings are provided on the left and right side walls of the front shell and the rear shell. The inner wall of the decorative strip is provided with bent clamping protrusions. After the plurality of mounting openings are abutted against each other, a clamping space for the decorative strip to enter and a clamping opening for the clamping protrusions to be inserted are formed.
[0009] Preferably, the clamping member includes a round rod fixedly installed on the inner wall of the front shell, and a round hole for the round rod to be inserted is provided on the surface of the detection head.
[0010] Preferably, when the two semi-circular plates are abutted against each other, a round opening for the top end of the detection head to pass through is formed. A sealing ring is clamped in the round opening, and a through opening for the detection head to pass through is vertically provided on the upper surface of the sealing ring.
[0011] Preferably, a semi-circular opening is provided on the inner ring wall of the semi-circular plate. When the two semi-circular openings are abutted against each other, a complete circular opening is formed. A ventilation hood is provided in the round opening. A plurality of strip-shaped ventilation openings are circumferentially provided on the surface of the ventilation hood. The ventilation openings are parallel to the detection head. A clamping ring is fixedly installed on the surface of the ventilation hood located in the round opening, and the clamping ring is clamped in the circular opening.
[0012] Preferably, the surfaces of the front shell and the rear shell are both arc-shaped, and a plurality of anti-slip protrusions are embedded on the surface of the decorative strip and the side walls of the front shell and the rear shell.
[0013] Preferably, a heat dissipation opening is provided on the surface of the rear shell. A waterproof cover is provided inside the rear shell. The position of the waterproof cover corresponds to that of the heat dissipation opening. A breathable film is provided inside the waterproof cover.
[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0015] 1. The externally-mounted storage IC can store compensation data. When the temperature and humidity accuracy deviates, the button can be manually pressed for accuracy compensation, and the compensation data is stored in the storage IC, so that the accuracy of the meter body can always be in the best state;
[0016] 2. The decorative strip can not only play a beautiful role, but also can be quickly disassembled and assembled through the cooperation between the clamping protrusions and the clamping openings;
[0017] 3. The sealing ring can prevent external dust or liquid from entering the meter body, thereby causing damage to the electrical components inside the meter body, and playing a role in protecting the components inside the meter body;
[0018] 4. The ventilation hood can also play a certain role in preventing dust and protecting against dust. At the same time, the plurality of strip-shaped ventilation openings provided on its surface and parallel to the detection head make the contact surface between the detection head and the outside gas wider, and the ventilation effect is better compared with other shapes. Description of the Drawings
[0019] Figure 1 Front three-dimensional structure schematic diagram of an LCD thermometer and hygrometer with a manual compensation circuit for temperature and humidity accuracy proposed by the present utility model;
[0020] Figure 2 Back three-dimensional structure schematic diagram of an LCD thermometer and hygrometer with a manual compensation circuit for temperature and humidity accuracy proposed by the present utility model;
[0021] Figure 3 Partial three-dimensional structure schematic diagram at the rear shell;
[0022] Figure 4 Partial three-dimensional structure schematic diagram at the front shell;
[0023] Figure 5 Side partial three-dimensional structure schematic diagram of an LCD thermometer and hygrometer with a manual compensation circuit for temperature and humidity accuracy proposed by the present utility model;
[0024] Figure 6 Three-dimensional structure schematic diagram at the decorative strip;
[0025] Figure 7 Partial three-dimensional structure schematic diagram at the ventilation cover, detection head and sealing ring;
[0026] Figure 8 Partial three-dimensional structure schematic diagram at the detection head and sealing ring;
[0027] Figure 9 Three-dimensional structure schematic diagram at the sealing ring;
[0028] Figure 10 For Figure 3 Enlarged view of the structure at A in
[0029] Figure 11 For Figure 4 Enlarged view of the structure at B in
[0030] Figure 12 For Figure 5 Enlarged view of the structure at C in
[0031] In the figure: 1 front shell, 2 rear shell, 3 insertion rod, 4 insertion cylinder, 5 PCB board, 6 storage IC, 7 single key, 8 two-link key, 9 semi-circular plate, 10 detection head, 11 observation port, 12 transparent cover, 13 LCD display screen, 14 installation port, 15 decorative strip, 16 clamping protrusion, 17 clamping interface, 18 round rod, 19 round hole, 20 battery slot, 21 battery cover, 22 semi-circular opening, 23 sealing ring, 24 through hole, 25 ventilation cover, 26 ventilation opening, 27 snap ring, 28 anti-slip protrusion, 29 heat dissipation opening, 30 waterproof cover. Specific embodiments
[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.
[0033] Terms such as "upper", "lower", "left", "right", "middle", and "one" cited in the present invention are only for the convenience of clear narration, rather than used to limit the scope of implementation of the present invention. The change or adjustment of their relative relationship, without substantial change in the technical content, should also be regarded as the scope of implementation of the present invention.
[0034] Referring to Figures 1-12 , an LCD thermometer and hygrometer with a manual compensation circuit for temperature and humidity accuracy, including a meter body. The body is composed of a front shell 1 and a rear shell 2. A plurality of insertion rods 3 are fixedly installed on the inner wall of the front shell 1. The plurality of insertion rods 3 are symmetrically arranged in pairs in the upper, middle, and lower parts of the inner wall of the front shell 1 respectively, which can make the combination of the front shell 1 and the rear shell 2 more stable when assembled. A plurality of insertion cylinders 4 for the plurality of insertion rods 3 to insert are fixedly installed on the inner wall of the rear shell 2. A PCB board 5 is clamped in the front shell 1. A single key 7 and a two-way key 8 that are both in contact with the PCB board 5 are arranged on the surface of the front shell 1. Semi-circular plates 9 are arranged at the tops of the front shell 1 and the rear shell 2. A detection head 10 is clamped by a clamping component between the two semi-circular plates 9. The clamping component includes a round rod 18 fixedly installed on the inner wall of the front shell 1. A round hole 19 for the round rod 18 to insert is opened on the surface of the detection head 10.
[0035] An observation port 11 is opened on the surface of the front shell 1. A transparent cover 12 is fixedly embedded in the observation port 11. An LCD display screen 13 for telecommunication connection with the PCB board 5 is arranged on the back of the transparent cover 12. A storage IC 6 is externally hung on the back of the LCD display screen 13. The storage IC 6 is used to store compensation data. Two battery slots 20 for placing No. 5 batteries are opened on the surface of the rear shell 2. A battery cover 21 is clamped at the notch of the battery slot 20.
[0036] The externally hung storage IC 6 in the meter body can store compensation data. When the temperature and humidity accuracy deviates during the process of using the meter body to detect temperature and humidity, the single key 7 or the two-way key 8 can be manually pressed in time for accuracy compensation. The compensation data will be stored in the storage IC 6, so that the accuracy of the meter body can always be in the best state, avoiding poor temperature and humidity accuracy of the meter body and affecting the detected data results.
[0037] The bottom of the meter body is provided with a U-shaped decorative strip 15. U-shaped mounting openings 14 are formed on the left and right side walls of the front shell 1 and the rear shell 2. The inner wall of the decorative strip 15 is provided with bent clamping protrusions 16. After a plurality of mounting openings 14 are abutted against each other, a clamping space for the decorative strip 15 to enter and a clamping opening 17 for the clamping protrusions 16 to be inserted are formed. The clamping opening 17 includes a plurality of rectangular openings evenly distributed at equal intervals, and the rectangular openings on the side walls of the front shell 1 and the rear shell 2 are arranged staggeredly.
[0038] The decorative strip 15 can beautify the overall meter body. At the same time, when the decorative strip 15 needs to be installed, it is only necessary to push the decorative strip 15 into the clamping space and insert the clamping protrusions 16 into the clamping opening 17 to complete the installation. When the decorative strip 15 needs to be disassembled, it is only necessary to pick out the decorative strip 15, which is convenient and fast, and the disassembly and assembly of the decorative strip 15 can be quickly completed.
[0039] When the two semi-circular plates 9 are abutted against each other, a circular opening for the top end of the detection head 10 to pass through is formed. A sealing ring 23 is clamped in the circular opening, and a through hole 24 for the detection head 10 to pass through is vertically formed on the upper surface of the sealing ring 23.
[0040] The sealing ring 23 can prevent external dust or liquid from entering the meter body, thereby preventing the electrical components inside the meter body from being damaged, and playing a role in protecting the components inside the meter body.
[0041] A semi-circular opening 22 is formed on the inner ring wall of the semi-circular plate 9. When the two semi-circular openings 22 are abutted against each other, a complete circular opening is formed. A ventilation cover 25 is arranged in the circular opening. A plurality of strip-shaped ventilation openings 26 are formed on the surface of the ventilation cover 25 in a circumferential shape. The ventilation openings 26 are parallel to the detection head 10. A clamping ring 27 is fixedly installed on the surface of the ventilation cover 25 located in the circular opening, and the clamping ring 27 is clamped in the circular opening.
[0042] The ventilation cover 25 can also play a certain role in preventing dust and ash, and at the same time, the plurality of strip-shaped ventilation openings 26 formed on its surface and parallel to the detection head 10 have a wider contact surface between the detection head 10 and the external gas compared with other shapes, and at the same time, the ventilation effect is better.
[0043] The surfaces of the front shell 1 and the rear shell 2 are both arc-shaped, and a plurality of anti-slip protrusions 28 are embedded on the surface of the decorative strip 15 and the side walls of the front shell 1 and the rear shell 2.
[0044] The arc-shaped surfaces of the front shell 1 and the rear shell 2 can increase the comfort when holding the meter body for use, while the anti-slip protrusions 28 can increase the friction between the palm and the contact surface of the meter body to prevent dropping.
[0045] A heat dissipation opening 29 is formed on the surface of the rear shell 2. A waterproof cover 30 is arranged inside the rear shell 2, and the position of the waterproof cover 30 corresponds to that of the heat dissipation opening 29. A breathable film is arranged inside the waterproof cover 30.
[0046] The heat dissipation port 29 allows the hot air accumulated in the front shell 1 and the rear shell 2 to float out from the heat dissipation port 29 during the operation of the meter body, achieving the effect of heat dissipation. The waterproof cover 30 can play a waterproof role to prevent external water from entering the front shell 1 and the rear shell 2 through the heat dissipation port 29.
[0047] In the present utility model, the storage IC6 located outside and hung on the meter body can store compensation data. When the temperature and humidity accuracy deviates during the process of using the meter body to detect temperature and humidity, the single key 7 or the two - key 8 can be manually pressed in time for accuracy compensation, and the compensation data will be stored in the storage IC6. This can keep the accuracy of the meter body in the best state all the time, avoiding poor temperature and humidity accuracy of the meter body and affecting the detected data results.
[0048] In the present utility model, unless otherwise clearly stipulated and defined, terms such as "installation", "connection", "linkage", "fixation" should be understood in a broad sense.
[0049] As mentioned above, only the preferred specific implementation manners of the present utility model are described, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, making equivalent replacements or changes should be covered within the protection scope of the present utility model.
Claims
1. An LCD thermometer and hygrometer with a temperature and humidity accuracy manual compensation circuit, comprising a meter body, characterized in that: The meter body is composed of a front shell (1) and a rear shell (2); a plurality of plug rods (3) are fixedly mounted on the inner wall of the front shell (1); the plurality of plug rods (3) are symmetrically arranged in pairs at the upper part, the middle part and the lower part of the inner wall of the front shell (1); a plurality of insert tubes (4) are fixedly mounted on the inner wall of the rear shell (2) for inserting the plurality of plug rods (3); a PCB board (5) is clamped in the front shell (1); a single key (7) and two coupled keys (8) are provided on the surface of the front shell (1) both of which are against the PCB board (5); a semi-ring plate (9) is provided on the top of the front shell (1) and the rear shell (2); two semi-ring plates (9) are clamped with a detection head (10) through a clamping component; The front shell (1) has an observation port (11) on its surface, a transparent cover (12) is fixedly embedded in the observation port (11), an LCD display screen (13) for telecommunication connection with a PCB board (5) is provided on the back of the transparent cover (12), a storage IC (6) is externally mounted on the back of the LCD display screen (13), and the storage IC (6) is used to store compensation data, and the rear shell (2) has two battery slots (20) for placing No. 5 batteries, and a battery cover (21) is fixed at the notch of the battery slot (20).
2. The LCD thermometer and hygrometer with a temperature and humidity accuracy manual compensation circuit according to claim 1, characterized in that: A U-shaped decorative strip (15) is provided at the bottom of the meter body, and the left and right side walls of the front shell (1) and the rear shell (2) are both provided with U-shaped installation openings (14). The inner wall of the decorative strip (15) is provided with a bent snap-in protrusion (16), and a plurality of the installation openings (14) are abutted against each other to form a snap-in space for the decorative strip (15) to enter and a snap-in interface (17) for the snap-in protrusion (16) to snap into.
3. The LCD thermometer and hygrometer with a temperature and humidity accuracy manual compensation circuit according to claim 1, characterized in that: The clamping component comprises a round rod (18) fixedly mounted on the inner wall of the front shell (1), and a round hole (19) for inserting the round rod (18) is provided on the surface of the detection head (10).
4. The LCD thermometer and hygrometer with a temperature and humidity accuracy manual compensation circuit according to claim 1, characterized in that: When the two semi-ring plates (9) are butted against each other, a circular opening is formed for the top end of the detection head (10) to pass through, a sealing ring (23) is clamped in the circular opening, and a through opening (24) for the detection head (10) to pass through is vertically opened on the upper surface of the sealing ring (23).
5. The LCD thermometer and hygrometer with a temperature and humidity accuracy manual compensation circuit according to claim 4, characterized in that: The inner ring wall of the semi-ring plate (9) is provided with a semi-ring opening (22), and a complete ring opening is formed when the two semi-ring openings (22) are abutted against each other. A ventilation hood (25) is provided in the circular opening, and a plurality of strip-shaped ventilation openings (26) are provided on the surface of the ventilation hood (25) in a circular shape. The ventilation openings (26) are parallel to the detection head (10), and a retaining ring (27) is fixedly installed on the surface of the ventilation hood (25) located in the circular opening, and the retaining ring (27) is clamped in the ring opening.
6. The LCD thermometer and hygrometer with a temperature and humidity accuracy manual compensation circuit according to claim 2, characterized in that: The surfaces of the front shell (1) and the rear shell (2) are both arc-shaped, and the surface of the decorative strip (15) and the side walls of the front shell (1) and the rear shell (2) are both embedded with a plurality of anti-slip protrusions (28).
7. The LCD thermometer and hygrometer with a temperature and humidity accuracy manual compensation circuit according to claim 1, characterized in that: A heat dissipation opening (29) is provided on the surface of the rear shell (2), a waterproof cover (30) is provided inside the rear shell (2), the waterproof cover (30) corresponds to the position of the heat dissipation opening (29), and a breathable film is provided inside the waterproof cover (30).