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Dust sensor

A technology of dust sensor and air duct detection, which is applied in the direction of scientific instruments, measuring devices, suspension and porous material analysis, etc., can solve problems such as loss of merger and enlargement of external dimensions, and achieve the effect of preventing inaccurate detection and compact structure

Pending Publication Date: 2018-02-06
XIAMEN MAXMAC AIR TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, a dust pollution detection device can only detect one environment. If two or more environments are to be detected, the easiest way is to simply combine multiple detection modules on the same device to achieve multiple detections at the same time. The purpose of the environment, but the complete detection module includes at least the air duct, the fan and the detection mechanism. If simply combined and superimposed, the external dimensions will be doubled accordingly, and the combination will be meaningless.

Method used

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Effect test

Embodiment 1

[0024] refer to figure 1 As shown, a dust sensor provided in this embodiment is a double air duct dust sensor, which specifically includes: a housing 10, a fan 30 and two detection mechanisms, and the housing 10 is formed with two There is a detection air duct 20 with a first port and a second port. The detection air duct 20 has a "7"-shaped structure, which has a connected horizontal air duct 21 and a longitudinal air duct 22. The two "7"-shaped detection air ducts are arranged opposite to each other. , that is: the longitudinal air duct 22 is set in the same direction (downward in this embodiment), the opening formed by the longitudinal air duct 22 on the housing 10 is the second port and communicates with each other to form a common end, and the fan 30 is set On the common end, under the action of the fan 30 , the common end forms a common air outlet of the two detection air ducts 20 . The horizontal air passages 21 of the two "7"-shaped detection air passages 20 are set i...

Embodiment 2

[0031] refer to Figure 5 As shown, the dust sensor provided in this embodiment is the same as that in the first embodiment figure 1 The structures shown are substantially the same, except that a balanced air duct 60 is also included, and the balanced air duct 60 runs through between the second air duct sections 22 of the two detection air ducts 20, and the balanced air duct 60 A partition 61 is arranged on the upper hinge.

[0032] A fan 30 drives a plurality of detection air ducts 20 to draw air synchronously. In order to ensure that the mutual influence between each detection air duct 20 will be minimized, the preferred solution is to completely isolate each detection air duct, such as figure 1 with image 3As shown, the implementations do not affect each other. However, if there is blockage or other reasons in the air extraction process among the plurality of detection air ducts 20, it is easy to generate a pressure difference, which will cause the air flow to pass thro...

Embodiment 3

[0034] The dust sensor provided in this embodiment is a four-air duct dust sensor, and the structure of the four detection air ducts is the same as that in Embodiment 1. figure 1 The air duct structures shown are the same, all of which are "7"-shaped structures, which are the same as those in Embodiment 1. figure 1 the difference is, figure 1 In the middle, the two detection air ducts are set opposite to each other, the vertical air ducts are set in the same direction, and the horizontal air ducts of the two detection air ducts are opposite to each other and arranged in the shape of "one". In this embodiment, the vertical air ducts of the four detection air ducts are arranged in the same direction, and the horizontal air ducts are opposite to each other and arranged in the shape of a "cross". That is, the four air inlets of the four-air duct dust sensor are arranged in front, rear, left, and right. Of course, the first ports of the transverse air ducts can also be arranged s...

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Abstract

The invention provides a dust sensor. The dust sensor comprises a casing, a fan and a plurality of detection mechanisms, wherein a plurality of detection air passages with first ports and second portsare arranged on the casing; the second ports of the multiple detection air passages are communicated to form a common end; the fan is arranged on the common end; under the action of the fan, air exhaust ports of the multiple detection air passages are formed at the common end, and the first ports of the detection air passages form an air intake port; the multiple detection mechanisms are arrangedon the casing, and respectively correspond to the multiple detection air passages, so as to respectively detect the dust in each detection air passage.

Description

technical field [0001] The invention relates to the field of dust sensing, in particular to a dust sensor which has a compact structure and can simultaneously detect multiple environments. Background technique [0002] Dust pollution (such as PM10 particles and PM2.5 particles) is by no means a trivial matter. It directly threatens people's lives, especially in a dust-polluted environment that can cause a variety of cardiovascular and respiratory diseases. The continuous and rapid increase in the incidence of asthma and bronchitis is a typical manifestation of the aggravation of dust pollution. Dust pollution has the greatest impact on the elderly and children. And too much dust is easy to breed germs and viruses, which is extremely harmful to health. It can also be very harmful to skin health. [0003] An existing dust sensor, such as a dust pollution detection device disclosed in Chinese Utility Model Patent Application No. 201620686237.4, includes an external casing and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N15/06
CPCG01N15/06G01N15/075
Inventor 周春夫余长永
Owner XIAMEN MAXMAC AIR TECH
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