Portable miniature air quality monitor

By designing a shading assembly in a mini air quality monitor and sealing the ventilation holes to prevent impurities from entering, the problem of impurities entering in the prior art affecting the monitoring effect is solved, and higher monitoring accuracy and use flexibility are achieved.

CN222800697UActive Publication Date: 2025-04-25SHANGHAI MYOSM HVAC TECH
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Patent Information

Application Number
CN202420817031.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-19
Publication Date
2025-04-25
Estimated Expiration
2034-04-19

AI Technical Summary

Technical Problem

When carrying existing mini air quality monitors, since the breathable notch is often open and unobstructed, external solid particles and impurities are easily allowed to enter the inside of the instrument, affecting the air monitoring effect.

Method used

A portable micro air quality monitor is designed, with a shielding assembly including a fixed shaft, a rotating baffle and a straight notch, which blocks or opens the ventilation holes through the movement of the rotating baffle to ensure that impurities are prevented from entering when not in use.

Benefits of technology

It effectively prevents external impurity particles from entering the interior cavity of the instrument, ensures the accuracy of air quality monitoring, and improves the flexibility of the instrument.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a portable miniature air quality monitor, which relates to the technical field of miniature air quality monitors, and comprises a miniature air quality monitor consisting of a shell main body, a display screen and an indicating lamp, the side face of the inner wall of the storage groove is provided with a ventilation hole penetrating through the inner cavity of the shell body. A shielding assembly is arranged on the inner side of the containing groove and used for blocking or unblocking the ventilation holes. According to the utility model, the shielding assembly is arranged, the baffle plate is rotated to be accommodated in the accommodating groove, and the straight groove opening and the ventilation hole are staggered, so that the ventilation hole is blocked, and the inner cavity of the shell main body is disconnected from the external environment, thereby effectively preventing external impurity particles from entering the inner cavity of the shell main body; and meanwhile, the miniature air quality monitor can be obliquely placed on the table top by rotating the baffle out of the storage groove, so that the use flexibility of the monitor is further improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of miniature air quality monitors, in particular to a portable miniature air quality monitor. Background Art

[0002] The air quality monitor is a technological product developed based on the principle of constant potential electrolytic sensor to detect polluted gases and the principle of light scattering to detect dust. It is developed and researched in combination with internationally mature electronic technology and network communication technology. It can simultaneously monitor the concentration of gases and inhalable particles and display them on the same display screen.

[0003] With the development of air quality monitor technology, air quality monitors are also refined into different product types according to monitoring functions, such as dedicated to monitoring carbon dioxide, dedicated to monitoring haze particles or dedicated to monitoring volatile organic compounds. In order to facilitate people's daily carrying, small-sized air quality monitors are also designed. There is a mini air quality monitor on the market. The overall structure is square, the size is 50mm×50mm, and the thickness is 16.3mm. It is mainly used to monitor the concentration of carbon dioxide and temperature and humidity in the air. This mini air quality monitor can be hung on a backpack as a pendant, and has good portability.

[0004] In order to ensure that the internal sensor of the mini air quality monitor can fully contact with the external air, corresponding ventilation slots are produced on the back of the shell, and these ventilation slots are in a normally open and unobstructed state. Therefore, when it is placed in a backpack or pocket for daily carrying, external solid particle impurities can easily fall into the shell through the ventilation slots, and then affect subsequent air monitoring. Based on this, a portable miniature air quality monitor is provided. Utility Model Content

[0005] The purpose of the utility model is to provide a portable miniature air quality monitor in order to solve the above-mentioned problems.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a portable miniature air quality monitor, comprising a miniature air quality monitor consisting of a shell body, a display screen, and an indicator light, wherein the shell body and the display screen are installed at the front end of the shell body, the display screen is located above the shell body, a storage groove is formed on the back of the shell body, and a ventilation hole is opened on the inner wall side of the storage groove and penetrates into the inner cavity of the shell body;

[0007] A shielding component is provided inside the storage slot, and the shielding component is used to block or unblock the ventilation hole;

[0008] The shielding assembly includes a fixed shaft, a rotating baffle, and a straight notch;

[0009] The fixed shaft is fixed to the inner top of the storage groove, the rotating baffle is rotatably connected to the outer side of the fixed shaft and stored in the inner side of the storage groove, the width of the rotating baffle is smaller than the inner wall width of the storage groove, the straight slot is opened on the side of the rotating baffle and passes through the other side of the rotating baffle, when the rotating baffle moves to align the straight slot with the ventilation hole, the ventilation hole is connected to the outside air, and when the rotating baffle moves to misalign the straight slot with the ventilation hole, the ventilation hole is blocked;

[0010] A magnetic attraction component is arranged between the inner side of the storage groove and the rotating baffle, and the magnetic attraction component is used to limit and fix the position of the rotating baffle.

[0011] As a further solution of the utility model: the magnetic suction component includes a docking groove, a convex card groove, a magnetic suction block, and a convex iron block;

[0012] The docking groove and the convex card slot are arranged at the bottom of the inner wall side of the storage groove, the convex card slot and the docking groove are horizontally distributed and connected to each other, and the magnetic attraction block is installed on the inner side of the docking groove and the convex card slot;

[0013] The convex iron block is fixed to the bottom of one side of the rotating baffle close to the inner wall side of the storage groove. The convex iron block is inserted into the docking groove and fixed by the magnetic block. The convex iron block moves and is inserted into the inner side of the convex slot to limit the rotation of the rotating baffle.

[0014] As a further solution of the utility model: the shielding assembly also includes a fixed slider, a horizontal slide groove, and an arc-shaped rotation groove;

[0015] The inner side of the top of the rotating baffle is formed with a hole groove matching the outer wall of the fixed shaft, the fixed slider is fixed to one end of the inner wall of the hole groove, the horizontal slide groove is opened on the side of the outer wall of the fixed shaft, and the fixed slider is slidably connected to the inner side of the horizontal slide groove to guide the horizontal movement of the rotating baffle;

[0016] The arc-shaped rotation groove is arranged on the side of the outer wall of the fixed shaft and is connected to one end of the horizontal slide groove. The fixed sliding block rotates to the inner side of the arc-shaped rotation groove to limit the rotation angle of the rotating baffle.

[0017] As a further solution of the utility model: the number of the ventilation holes is set to be multiple and distributed in a matrix, the number of the straight slots is set to be multiple and evenly distributed horizontally, and the length of a single straight slot matches the distribution length of the multiple ventilation holes distributed along the vertical direction.

[0018] As a further solution of the utility model: the moving length of the fixed sliding block in the horizontal slide groove matches the length of the convex slot, and the length of the straight slot and the horizontal distribution gap of the ventilation holes matches the length of the convex slot.

[0019] As a further solution of the utility model: control buttons and charging ports are respectively provided at both ends of the outer wall of the shell body.

[0020] Compared with the prior art, the beneficial effects of the utility model are:

[0021] By setting a shielding component, the baffle is stored in the storage groove by rotating, and the straight groove and the ventilation hole are misaligned, so that the ventilation hole is blocked. At this time, the inner cavity of the shell body is disconnected from the external environment, which effectively prevents external impurity particles from entering the inner cavity of the shell body. At the same time, the miniature air quality monitor can be placed on the desktop at an angle by rotating the baffle out of the storage groove, which further improves the flexibility of the monitor. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the back structure of the shell body of the utility model;

[0024] Figure 3 This is a schematic diagram of the structure of the rotating baffle of the utility model to release the blocking state of the ventilation hole;

[0025] Figure 4 It is a structural schematic diagram of the rotating baffle of the utility model when it is rotated to open;

[0026] Figure 5 This is a schematic diagram of the disassembled state of the shielding component of the utility model;

[0027] Figure 6 It is a structural cross-sectional view of the magnetic attraction component of the utility model.

[0028] In the figure: 1. Miniature air quality monitor; 101. Shell body; 102. Display screen; 103. Indicator light; 104. Control button; 105. Charging port; 106. Storage slot; 107. Ventilation hole; 2. Shielding component; 201. Fixed axis; 202. Rotating baffle; 203. Straight slot; 204. Fixed slider; 205. Horizontal slide slot; 206. Arc-shaped rotating slot; 3. Magnetic suction component; 301. Docking slot; 302. Convex card slot; 303. Magnetic suction block; 304. Convex iron block. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] See also Figures 1 to 6 In an embodiment of the utility model, a portable miniature air quality monitor includes a miniature air quality monitor 1 consisting of a shell body 101, a display screen 102, and an indicator light 103. The shell body 101 and the display screen 102 are installed at the front end of the shell body 101, and the display screen 102 is located above the shell body 101. The outer wall of the shell body 101 is provided with control buttons 104 and a charging port 105 at both ends, and a storage groove 106 is formed on the back of the shell body 101. The inner wall side of the storage groove 106 is provided with a ventilation hole 107 that penetrates the inner cavity of the shell body 101. A shielding component 2 is provided on the inner side of the storage groove 106, and the shielding component 2 is used to block or unblock the ventilation hole 107;

[0031] The shielding assembly 2 includes a fixed shaft 201, a rotating baffle 202, and a straight slot 203. The fixed shaft 201 is fixed to the inner top of the storage groove 106. The rotating baffle 202 is rotatably connected to the outer side of the fixed shaft 201 and is stored in the inner side of the storage groove 106. The width of the rotating baffle 202 is smaller than the inner wall width of the storage groove 106. The straight slot 203 is opened on the side of the rotating baffle 202 and passes through the other side of the rotating baffle 202. When the rotating baffle 202 moves to align the straight slot 203 with the ventilation hole 107, the ventilation hole 107 is connected to the outside air. When the rotating baffle 202 moves to misalign the straight slot 203 with the ventilation hole 107, the ventilation hole 107 is blocked.

[0032] A magnetic attraction component 3 is provided between the inner side of the storage slot 106 and the rotating baffle 202. The magnetic attraction component 3 is used to limit and fix the position of the rotating baffle 202. The magnetic attraction component 3 includes a docking slot 301, a convex slot 302, a magnetic attraction block 303, and a convex iron block 304.

[0033] The docking groove 301 and the convex card groove 302 are provided at the bottom of the inner wall side of the storage groove 106. The convex card groove 302 and the docking groove 301 are horizontally distributed and interconnected. The magnetic attraction block 303 is installed on the inner side of the docking groove 301 and the convex card groove 302.

[0034] The convex iron block 304 is fixed to the bottom of one side of the rotating baffle 202 close to the inner wall side of the storage groove 106. The convex iron block 304 is inserted into the docking groove 301 and fixed by the magnetic block 303. The convex iron block 304 moves and is inserted into the inner side of the convex slot 302 to limit the rotation of the rotating baffle 202.

[0035] The number of ventilation holes 107 is multiple and distributed in a matrix, the number of straight slots 203 is multiple and evenly distributed horizontally, and the length of a single straight slot 203 matches the distribution length of the multiple ventilation holes 107 distributed in the vertical direction;

[0036] The moving length of the fixed slider 204 in the horizontal slide groove 205 matches the length of the convex slot 302 , and the horizontal distribution gap length of the straight slot 203 and the ventilation hole 107 matches the length of the convex slot 302 .

[0037] In this embodiment, it should be noted that a carbon dioxide gas sensor is installed inside the housing body 101. The infrared carbon dioxide sensor is composed of an infrared light source, an optical path, an infrared detector, a circuit and a software algorithm. The infrared light source emits infrared light, which passes through the gas to be measured in the optical path, passes through a narrow-band filter, and reaches the infrared detector. Due to the selective absorption characteristics of the near-infrared spectrum of gas molecules, molecules of different substances will selectively absorb light of a certain wavelength. For carbon dioxide gas, carbon dioxide gas has an absorption peak in the 4.26μm infrared region. At this wavelength, oxygen, nitrogen, carbon monoxide, water vapor and other gases have no obvious absorption. Therefore, by calculating the relationship between the concentration of carbon dioxide gas and the absorption intensity, the concentration of carbon dioxide gas can be measured.

[0038] When the miniature air quality monitor 1 is not in use, the rotating baffle 202 is stored in the storage groove 106, and the straight slot 203 is misaligned with the ventilation hole 107, so that the ventilation hole 107 is blocked, and the inner cavity of the shell body 101 is disconnected from the external environment, which effectively prevents external impurity particles from entering the inner cavity of the shell body 101 (it should be noted that: at this time, the convex iron block 304 is clamped in the convex clamping groove 302, and the magnetic block 303 has a magnetic attraction to the convex iron block 304, so the rotating baffle 202 can maintain a stable fixed state);

[0039] When the carbon dioxide concentration needs to be monitored, if the device is held in the hand for use, the rotating baffle 202 is manually pushed to move horizontally, and the rotating baffle 202 moves so that the straight slot 203 is aligned with the ventilation hole 107, so that the inner cavity of the housing body 101 is in a conductive state with the external environment, that is, the carbon dioxide gas sensor can contact the external air at this time, and the carbon dioxide gas sensor is controlled to start by the control button to realize the detection of the carbon dioxide concentration of the external air (it should be noted that: at this time, the convex iron block 304 is located in the docking groove 301, and the magnetic block 303 adsorbs the convex iron block 304 to keep the rotating baffle 202 fixed);

[0040] In addition, the miniature air quality monitor 1 can be placed on a desktop for use. If it is placed directly on the desktop for use, the miniature air quality monitor 1 is in a vertical state as a whole. If it is not easy to see the display screen 102 at this time, it can be placed at an angle. At this time, the rotating baffle 202 is rotated to make it rotate out of the storage groove 106, and the convex iron block 304 is synchronously rotated out of the docking groove 301. Then, a triangle is formed between the rotating baffle 202, the shell body 1 and the desktop, so that the miniature air quality monitor 1 can be placed at an angle, and its display screen 102 is tilted upward for easy viewing.

[0041] Please refer to Figure 4 , the shielding assembly 2 also includes a fixed slider 204, a horizontal slide groove 205, and an arc-shaped rotation groove 206;

[0042] A hole groove matching the outer wall of the fixed shaft 201 is formed on the inner side of the top of the rotating baffle 202, and a fixed slider 204 is fixed to one end of the inner wall of the hole groove. A horizontal slide groove 205 is provided on the outer wall side of the fixed shaft 201, and the fixed slider 204 is slidably connected to the inner side of the horizontal slide groove 205 to guide the horizontal movement of the rotating baffle 202.

[0043] The arc-shaped rotation groove 206 is provided on the outer wall side of the fixed shaft 201 and is connected to one end of the horizontal slide groove 205 . The fixed slider 204 rotates to the inner side of the arc-shaped rotation groove 206 to limit the rotation angle of the rotating baffle 202 .

[0044] In this embodiment: the rotation angle of the rotating baffle 202 is limited by the sliding limit of the arc-shaped rotating groove 206 and the fixed slider 204, so that the rotating baffle 202 can maintain a stable tilt support for the miniature air quality monitor 1;

[0045] The setting of the horizontal slide groove 205 provides space for the horizontal movement of the fixed slider 204 , thereby ensuring the normal horizontal movement operation of the rotating baffle 202 .

[0046] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A portable miniature air quality monitor, comprising a miniature air quality monitor (1) consisting of a housing body (101), a display screen (102), and an indicator light (103), wherein the housing body (101) and the display screen (102) are mounted on the front end of the housing body (101), and the display screen (102) is located above the housing body (101), characterized in that: A storage groove (106) is formed on the back of the shell body (101), and a ventilation hole (107) penetrating into the inner cavity of the shell body (101) is opened on the inner wall side of the storage groove (106); A shielding component (2) is provided on the inner side of the storage groove (106), and the shielding component (2) is used to block or unblock the ventilation hole (107); The shielding assembly (2) comprises a fixed shaft (201), a rotating baffle (202), and a straight notch (203); The fixed shaft (201) is fixed to the inner top of the storage groove (106); the rotating baffle (202) is rotatably connected to the outer side of the fixed shaft (201) and is stored in the inner side of the storage groove (106); the width of the rotating baffle (202) is smaller than the inner wall width of the storage groove (106); the straight slot (203) is opened on the side of the rotating baffle (202) and passes through the other side of the rotating baffle (202); when the rotating baffle (202) moves so that the straight slot (203) is aligned with the ventilation hole (107), the ventilation hole (107) is in contact with the outside air; when the rotating baffle (202) moves so that the straight slot (203) is misaligned with the ventilation hole (107), the ventilation hole (107) is blocked; A magnetic attraction component (3) is provided between the inner side of the storage groove (106) and the rotating baffle (202), and the magnetic attraction component (3) is used to limit and fix the position of the rotating baffle (202).

2. A portable miniature air quality monitor according to claim 1, characterized in that: The magnetic attraction component (3) comprises a docking groove (301), a convex clamping groove (302), a magnetic attraction block (303), and a convex iron block (304); The docking groove (301) and the convex card groove (302) are arranged at the bottom of the inner wall side of the storage groove (106); the convex card groove (302) and the docking groove (301) are horizontally distributed and communicate with each other; and the magnetic attraction block (303) is installed on the inner side of the docking groove (301) and the convex card groove (302); The convex iron block (304) is fixed to the bottom of one side of the rotating baffle (202) close to the inner wall side of the storage groove (106); the convex iron block (304) is inserted into the docking groove (301) and is adsorbed and fixed by the magnetic block (303); the convex iron block (304) moves and is inserted into the inner side of the convex groove (302) to limit the rotation of the rotating baffle (202).

3. A portable miniature air quality monitor according to claim 2, characterized in that: The shielding assembly (2) further comprises a fixed sliding block (204), a horizontal sliding groove (205), and an arc-shaped rotating groove (206); A hole groove matching the outer wall of the fixed shaft (201) is formed on the inner side of the top of the rotating baffle (202); the fixed slider (204) is fixed to one end of the inner wall of the hole groove; the horizontal slide groove (205) is provided on the side of the outer wall of the fixed shaft (201); the fixed slider (204) is slidably connected to the inner side of the horizontal slide groove (205) for guiding the horizontal movement of the rotating baffle (202); The arc-shaped rotation groove (206) is provided on the side of the outer wall of the fixed shaft (201) and is connected to one end of the horizontal slide groove (205). The fixed sliding block (204) rotates to the inner side of the arc-shaped rotation groove (206) to limit the rotation angle of the rotating baffle (202).

4. A portable miniature air quality monitor according to claim 3, characterized in that: The number of the ventilation holes (107) is multiple and distributed in a matrix, the number of the straight slots (203) is multiple and evenly distributed horizontally, and the length of a single straight slot (203) matches the distribution length of the multiple ventilation holes (107) distributed in the vertical direction.

5. A portable miniature air quality monitor according to claim 4, characterized in that: The moving length of the fixed sliding block (204) in the horizontal sliding groove (205) matches the length of the convex slot (302), and the horizontal distribution gap length of the straight slot (203) and the ventilation hole (107) matches the length of the convex slot (302).

6. A portable miniature air quality monitor according to claim 1, characterized in that: A control button (104) and a charging port (105) are respectively provided at two ends of the outer wall of the housing body (101).