Dust detection device

Abstract

The utility model relates to the technical field of dust detection, and particularly discloses a dust detection device which comprises a shell, a sensor and a gasket, the sensor is arranged in the shell, one side of the sensor is provided with an air inlet and an air outlet, and the air inlet and the air outlet are arranged side by side; the gasket is provided with a wrapping edge covering one side of the sensor, the wrapping edge is provided with an air inlet corresponding to the air inlet hole and an air outlet corresponding to the air outlet hole so as to separate the air inlet hole and the air outlet hole. Through the arrangement, the air inlet hole and the air outlet hole are physically separated in the shell, so that turbulent flow between the air inlet hole and the air outlet hole is reduced, interference of airflow in other directions in the shell is eliminated, errors are reduced, and the response speed is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of dust detection, in particular to a dust detection device. Background Art

[0002] A dust detector is a device used to measure the concentration of suspended particles in the air and is widely used in environmental protection, occupational health, industrial safety and other fields.

[0003] As the market demand for miniaturization increases, the size of dust detection devices is getting smaller and smaller, and the distance between the air inlet and the air outlet is too small. This makes it easy for turbulence to occur between the air inlet and the air outlet, affecting the measurement accuracy and stability, and also making the response time too long. These problems limit the application effect and scope of use of dust detectors. Utility Model Content

[0004] In order to solve at least one technical problem existing in the above-mentioned prior art, the utility model provides a dust detection device, which reduces the turbulence between the air inlet and the air outlet by physically separating the air inlet and the air outlet inside the shell, and eliminates the interference of airflow in other directions inside the shell, thereby reducing errors and improving response speed.

[0005] The technical solution adopted by the utility model to solve the problem is:

[0006] Dust detection device, including:

[0007] The outer shell is hollowed out;

[0008] The sensor is arranged in the housing, and an air inlet and an air outlet are arranged on one side of the sensor, and the air inlet and the air outlet are arranged side by side;

[0009] The gasket is provided with an edge covering one side of the sensor, the edge is provided with an air inlet corresponding to the air inlet hole and an air outlet corresponding to the air outlet hole to separate the air inlet hole and the air outlet hole.

[0010] In some embodiments of the present invention, it also includes:

[0011] The base is provided with the sensor, and the housing is sleeved on the base so that the sensor is provided inside the housing.

[0012] In some more specific embodiments, a PCB board is mounted on the base, and the sensor is mounted on the PCB board, so that the sensor is disposed on the base.

[0013] In some further examples, the gasket is arranged between the sensor and the PCB board, one opposite end surface of the gasket is attached to the sensor, and the other opposite end surface is attached to the PCB board, and the edge extends from between the sensor and the PCB board to one side of the sensor.

[0014] In some further examples, a boss is provided on the end surface of the base facing the PCB, and the PCB is placed on the boss so that a heat dissipation space is left between the base and the PCB.

[0015] In some further examples, mounting positions are set at corners of the base, mounting holes are set at corners of the PCB board corresponding to the mounting positions, and connectors are plugged between the mounting positions and the mounting holes so that the PCB board can be installed on the base.

[0016] In some further examples, the PCB board is provided with an output terminal for connecting to an external device, the output terminal is connected to the external device through an output line, the housing is provided with a wiring hole corresponding to the output line, and the output line passes through the wiring hole to be connected to the external device.

[0017] In some embodiments of the present invention, a plurality of first air holes are arranged on the peripheral side of the shell, so that the shell is hollowed out.

[0018] In some embodiments of the present invention, a plurality of second air holes are disposed on the upper end surface of the shell, so that the shell is hollowed out.

[0019] In some more specific embodiments, the second air holes are evenly arranged on the upper end surface of the shell around the center of the upper end surface of the shell.

[0020] In summary, compared with the prior art, the dust detection device provided by the utility model has the following technical effects:

[0021] By setting a gasket, the gasket is provided with an edge covering one side of the sensor, and then the edge is provided with an air inlet corresponding to the air inlet hole and an air outlet corresponding to the air outlet hole, so as to separate the air inlet hole and the air outlet hole, so as to achieve physical separation of the air inlet hole and the air outlet hole inside the shell, thereby reducing turbulence between the air inlet hole and the air outlet hole, and eliminating interference from airflow in other directions inside the shell, thereby reducing errors and improving response speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of an embodiment of a dust detection device of the utility model;

[0023] Figure 2 This is a disassembled diagram of an embodiment of a dust detection device of the present utility model.

[0024] The meanings of the reference numerals are as follows:

[0025] 1. Shell; 11. First air hole; 12. Second air hole; 13. Wiring hole; 2. Sensor; 21. Air inlet; 22. Air outlet; 3. Gasket; 30. Edge wrapping; 31. Air inlet; 32. Air outlet; 4. Base; 41. Boss; 42. Mounting position; 43. Connector; 5. PCB board; 51. Output terminal; 511. Output line; 52. Mounting hole. DETAILED DESCRIPTION

[0026] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] It should be understood that the references to "one embodiment" or "an embodiment" throughout the specification mean that the specific features, structures, or characteristics associated with the embodiment are included in at least one embodiment of the present invention. Therefore, the references to "in one embodiment" or "in an embodiment" appearing throughout the specification do not necessarily refer to the same embodiment. In addition, these specific features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0028] It should be noted that the directions or positional relationships indicated by terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which the present invention belongs. The terms used in the description of the present invention are only for describing specific embodiments and are not intended to limit the present invention.

[0030] according to Figure 1 and Figure 2 As shown, the utility model provides an embodiment of a dust detection device, including: a housing 1, a sensor 2, and a gasket 3.

[0031] Specifically, the shell 1 is hollowed out; the sensor 2 is arranged in the shell 1, and an air inlet 21 and an air outlet 22 are arranged on one side of the sensor 2, and the air inlet 21 and the air outlet 22 are arranged side by side; the gasket 3 is provided with a edging 30 covering one side of the sensor 2, and the edging 30 is provided with an air inlet 31 corresponding to the air inlet 21 and an air outlet 32 ​​corresponding to the air outlet 22, so as to separate the air inlet 21 and the air outlet 22; wherein the sensor 2 is arranged as a dust detector, and the material of the gasket 3 is set to a flexible material so that the edging 30 can completely fit and cover one side of the sensor 2.

[0032] Through the above-mentioned setting, the air inlet 21 and the air outlet 22 are physically separated inside the shell 1, thereby reducing the turbulence between the air inlet 21 and the air outlet 22 and eliminating the interference of airflow in other directions inside the shell 1, thereby reducing errors and improving response speed.

[0033] Specifically, the dust detection device also includes a base 4, the sensor 2 is arranged on the base 4, and the shell 1 is sleeved on the base 4 so that the sensor 2 is arranged in the shell 1; more specifically, a PCB board 5 (Printed Circuit Board) is installed on the base 4, and the sensor 2 is installed on the PCB board 5, so that the sensor 2 is arranged on the base 4, thereby transmitting the detection data of the sensor 2 to the external device through the PCB board 5.

[0034] Furthermore, the gasket 3 is arranged between the sensor 2 and the PCB board 5, with one opposite end surface of the gasket 3 attached to the sensor 2 and the other opposite end surface attached to the PCB board 5, and the edge 30 extends from between the sensor 2 and the PCB board 5 to one side of the sensor 2.

[0035] Furthermore, a boss 41 is provided on the end surface of the base 4 facing the PCB board 5, and the PCB board 5 is placed on the boss 41 to leave a heat dissipation space between the base 4 and the PCB; a plurality of bosses 41 can be provided, and each boss 41 can be evenly arranged on the base 4 around the center of the base 4, so that the PCB board 5 can be placed on the boss 41 more stably.

[0036] Preferably, the corners of the base 4 are provided with mounting positions 42, and the corners of the PCB board 5 are provided with mounting holes 52 corresponding to the mounting positions 42, and a connector 43 is plugged between the mounting positions 42 and the mounting holes 52 so that the PCB board 5 can be installed on the base 4; the four corners of the base 4 can be provided with mounting positions 42, and correspondingly, the four corners of the PCB board 5 are also provided with mounting holes 52 so that the PCB board 5 can be more firmly installed on the base 4.

[0037] In actual application, the PCB board 5 is provided with an output terminal 51 for connecting to an external device, and the output terminal 51 is connected to the external device through an output line 511. The housing 1 is provided with a wiring hole 13 corresponding to the output line 511, and the output line 511 passes through the wiring hole 13 and is connected to the external device.

[0038] Practically, a plurality of first air holes 11 are provided on the peripheral side of the shell 1 so that the shell 1 is hollowed out, and ambient air enters the interior of the shell 1 through the first air holes 11 and is sucked into the sensor 2 for dust detection; optionally, a plurality of second air holes 12 are provided on the upper end face of the shell 1 so that the shell 1 is hollowed out, and ambient air can also enter the interior of the shell 1 through the second air holes 12 and be sucked into the sensor 2 for dust detection; furthermore, the second air holes 12 are evenly arranged on the upper end face of the shell 1 around the center of the upper end face of the shell 1 to ensure the stability of the airflow formed when the ambient air enters the interior of the shell 1.

[0039] It should be noted that each embodiment in this specification is described in a progressive manner, and each embodiment focuses on the differences from other embodiments, and the same or similar parts between the various embodiments can be referred to each other. Although optional embodiments of the utility model embodiments have been described, once those skilled in the art know the basic creative concept, they can make additional changes and modifications to these embodiments. Therefore, the attached claims are intended to be interpreted as including optional embodiments and all changes and modifications that fall within the scope of the utility model embodiments.

[0040] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity from another entity, and do not necessarily require or imply any such actual relationship or order between these entities. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that an article or terminal device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such article or terminal device. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the article or terminal device including the elements.

[0041] The technical solution provided by the utility model is introduced in detail above. Specific examples are used in this article to illustrate the principle and implementation method of the utility model. At the same time, for general technicians in this field, according to the principle and implementation method of the utility model, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the utility model.

Claims

1. A dust detection device, characterized in that: include: A shell (1), wherein the shell (1) is hollowed out; A sensor (2), the sensor (2) being arranged in the housing (1), an air inlet (21) and an air outlet (22) being arranged on one side of the sensor (2), the air inlet (21) and the air outlet (22) being arranged side by side; A gasket (3), wherein the gasket (3) is provided with a rim (30) covering one side of the sensor (2), and the rim (30) is provided with an air inlet (31) corresponding to the air inlet hole (21), and an air outlet (32) corresponding to the air outlet hole (22), so as to separate the air inlet hole (21) and the air outlet hole (22).

2. The dust detection device according to claim 1, characterized in that: Also includes: A base (4), the sensor (2) is arranged on the base (4), and the housing (1) is sleeved on the base (4) so ​​that the sensor (2) is arranged inside the housing (1).

3. The dust detection device according to claim 2, characterized in that: A PCB board (5) is mounted on the base (4), and the sensor (2) is mounted on the PCB board (5), so that the sensor (2) is arranged on the base (4).

4. The dust detection device according to claim 3, characterized in that: The gasket (3) is arranged between the sensor (2) and the PCB board (5); one opposite end surface of the gasket (3) is attached to the sensor (2), and the other opposite end surface is attached to the PCB board (5); and the edge wrapping (30) extends from between the sensor (2) and the PCB board (5) to one side of the sensor (2).

5. The dust detection device according to claim 3, characterized in that: A boss (41) is provided on the end surface of the base (4) facing the PCB board (5), and the PCB board (5) is placed on the boss (41) so that a heat dissipation space is left between the base (4) and the PCB.

6. The dust detection device according to claim 3, characterized in that: The corners of the base (4) are provided with mounting positions (42), the corners of the PCB board (5) are provided with mounting holes (52) corresponding to the mounting positions (42), and a connector (43) is plugged between the mounting positions (42) and the mounting holes (52) so that the PCB board (5) is mounted on the base (4).

7. The dust detection device according to claim 3, characterized in that: The PCB board (5) is provided with an output terminal (51) for connecting to an external device; the output terminal (51) is connected to the external device via an output line (511); the housing (1) is provided with a wiring hole (13) corresponding to the output line (511); the output line (511) passes through the wiring hole (13) and is connected to the external device.

8. The dust detection device according to any one of claims 1 to 7, characterized in that: A plurality of first air holes (11) are arranged on the peripheral side of the outer shell (1), so that the outer shell (1) is hollowed out.

9. The dust detection device according to any one of claims 1 to 7, characterized in that: The upper end surface of the outer shell (1) is provided with a plurality of second air holes (12), so that the outer shell (1) is hollowed out.

10. The dust detection device according to claim 9, characterized in that: The second air holes (12) are evenly arranged on the upper end surface of the outer shell (1) around the center of the upper end surface of the outer shell (1).

Images