CN216209227U - Split type explosion-proof revolution speed sensor - Google Patents
Split type explosion-proof revolution speed sensor Download PDFInfo
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- CN216209227U CN216209227U CN202122393571.4U CN202122393571U CN216209227U CN 216209227 U CN216209227 U CN 216209227U CN 202122393571 U CN202122393571 U CN 202122393571U CN 216209227 U CN216209227 U CN 216209227U
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Abstract
The utility model relates to the technical field of rotating speed sensors, and discloses a split type explosion-proof rotating speed sensor which comprises a first explosion-proof shell, wherein a first cavity is formed in the first explosion-proof shell, and a first PCBA component is arranged in the first cavity; the second explosion-proof shell is internally provided with a second cavity, and a second PCBA component is arranged in the second cavity; the first PCBA component and the second PCBA component are used for measuring rotating speed and are connected through a first explosion-proof cable; and flame-retardant glue is filled and sealed in the first cavity and the second cavity. First PCBA subassembly and second PCBA subassembly accomplish jointly and measure the rotational speed, through first explosion-proof shell and second explosion-proof shell, separate first PCBA subassembly and second PCBA subassembly and air, the fire-retardant glue of embedment avoids spreading because of the bad spark that produces of electricity simultaneously to play blast proof effect.
Description
Technical Field
The utility model relates to the technical field of rotating speed sensors, in particular to a split type explosion-proof rotating speed sensor.
Background
The rotation speed sensor is a sensor that converts the rotation speed of a rotating object into an electric quantity to be output. The rotation speed sensor belongs to an indirect measuring device and can be manufactured by a mechanical method, an electrical method, a magnetic method, an optical method and a mixed method. In the actual working environment, explosion-proof standards are required for some workshops such as chemical plants, and in the prior art, no rotating speed sensor specially designed for explosion-proof exists.
SUMMERY OF THE UTILITY MODEL
Based on the above, the present invention is directed to a split type explosion-proof rotation speed sensor, which can isolate the circuit inside the sensor from the outside air, so as to meet the requirement of explosion-proof.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the utility model provides a split type explosion-proof rotation speed sensor, comprising:
the first explosion-proof shell is internally provided with a first cavity, and a first PCBA component is arranged in the first cavity;
the second explosion-proof shell is internally provided with a second cavity, and a second PCBA component is arranged in the second cavity;
the first PCBA component and the second PCBA component are used for measuring rotating speed and are connected through a first explosion-proof cable;
and flame-retardant glue is filled and sealed in the first cavity and the second cavity.
Further, the first explosion-proof shell comprises a cylinder shell and a first explosion-proof joint, the cylinder shell is provided with an opening, and the first explosion-proof joint seals the opening to form the first cavity.
Further, one end of the first explosion-proof cable penetrates through the first explosion-proof joint.
Further, the outer surface of the cylindrical shell is provided with external threads.
Further, the second explosion-proof shell comprises an upper shell and a lower shell, and the upper shell and the lower shell are sealed to form the second cavity.
Furthermore, a second explosion-proof joint is arranged on one side face of the lower shell, and the other end of the first explosion-proof cable penetrates through the second explosion-proof joint.
Further, the another side of casing is provided with the third explosion-proof joint down, second PCBA subassembly is connected with the explosion-proof cable of second, the explosion-proof cable of second is worn out the third explosion-proof joint.
The utility model has the beneficial effects that:
the utility model provides a split type explosion-proof rotating speed sensor, wherein a first PCBA component and a second PCBA component finish rotating speed measurement together, the first PCBA component and the second PCBA component are separated from air through a first explosion-proof shell and a second explosion-proof shell, and meanwhile, flame-retardant glue is filled and sealed to prevent sparks generated by electrical failure from spreading out, so that an explosion-proof effect is achieved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a split explosion-proof rotation speed sensor according to an embodiment of the present invention;
fig. 2 is a schematic cross-sectional structure view of a first explosion-proof housing and a first explosion-proof cable of a split explosion-proof rotation speed sensor according to an embodiment of the present invention;
fig. 3 is a schematic cross-sectional structural diagram of a first explosion-proof shell, a first explosion-proof cable and a second explosion-proof cable of a split explosion-proof rotation speed sensor according to an embodiment of the present invention.
In the figure:
1. a first explosion-proof housing; 11. a first cavity; 12. an external thread; 2. a second explosion-proof housing; 21. an upper housing; 22. a lower housing; 23. a second cavity; 3. a first explosion-proof cable; 4. a second explosion-proof cable; 5. a first explosion proof joint; 6. a second explosion proof joint; 7. a third explosion prevention joint; 8. a first PCBA component; 9. a second PCBA component.
Detailed Description
In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used based on the orientations and positional relationships shown in the drawings only for convenience of description and simplification of operation, and do not indicate or imply that the referred device or element must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
As shown in fig. 1 to 3, an embodiment of the present invention provides a split explosion-proof rotation speed sensor, including a first explosion-proof housing 1, a first cavity 11 is arranged inside the first explosion-proof housing 1, and a first PCBA assembly 8 is arranged inside the first cavity 11; the second explosion-proof shell 2 is internally provided with a second cavity 23, and a second PCBA component 9 is arranged in the second cavity 23; the first PCBA component 8 and the second PCBA component 9 are used for measuring the rotating speed and are connected through the first explosion-proof cable 3; and flame-retardant glue is filled and sealed in the first cavity 11 and the second cavity 23.
The utility model provides a split type explosion-proof rotating speed sensor.A first PCBA component 8 and a second PCBA component 9 finish rotating speed measurement together, the rotating speed measurement is realized in the prior art, no surplus exists in the rotating speed measurement, the first PCBA component 8 and the second PCBA component 9 are separated from air through a first explosion-proof shell 1 and a second explosion-proof shell 2, and meanwhile, flame-retardant glue is filled and sealed, so that sparks generated by electrical defects are prevented from spreading out, and the explosion-proof function is realized.
Further, as shown in fig. 2, the first explosion-proof housing 1 includes a cylindrical housing provided with an opening and a first explosion-proof joint 5 sealing the opening to form the first cavity 11. Further, one end of the first explosion-proof cable 3 passes through the first explosion-proof connector 5. First explosion-proof shell 1 is the aluminum alloy, has completely cut off inside because of the fragment that bad production splashes out, avoids causing the injury to people and thing around the sensor. Further, the outer surface of the cylinder shell is provided with an external thread 12, the external thread 12 can be connected through a nut, the split type explosion-proof sensor is installed at a corresponding detection position, and installation of the split type explosion-proof speed sensor is facilitated. In the embodiment, the first explosion-proof shell 1, the first explosion-proof joint 5 and the first explosion-proof cable 3 all have explosion-proof functions.
Further, as shown in fig. 3, the second explosion-proof housing 2 includes an upper housing 21 and a lower housing 22, and the upper housing 21 and the lower housing 22 are sealed to form the second cavity 23. The upper shell 21 is connected with the lower shell 22 through screws, and the second explosion-proof shell 2 is cast aluminum; further, a second explosion-proof joint 6 is arranged on one side surface of the lower housing 22, and the other end of the first explosion-proof cable 3 passes through the second explosion-proof joint 6. Further, the other side of lower casing 22 is provided with third explosion-proof joint 7, second PCBA subassembly 9 is connected with the explosion-proof cable 4 of second, explosion-proof cable 4 of second is worn out third explosion-proof joint 7. In this embodiment, the second explosion-proof housing 2, the first explosion-proof cable 3, the second explosion-proof cable 4, the second explosion-proof joint 66 and the third explosion-proof joint 77 all have an explosion-proof function.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the utility model. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (7)
1. The utility model provides an explosion-proof revolution speed sensor of split type which characterized in that includes:
the explosion-proof shell comprises a first explosion-proof shell (1), wherein a first cavity (11) is formed in the first explosion-proof shell, and a first PCBA component (8) is arranged in the first cavity (11);
the second explosion-proof shell (2) is internally provided with a second cavity (23), and a second PCBA component (9) is arranged in the second cavity (23);
the first PCBA component (8) and the second PCBA component (9) are used for measuring rotating speed and are connected through a first explosion-proof cable (3);
and flame-retardant glue is filled and sealed in the first cavity (11) and the second cavity (23).
2. A split explosion-proof rotational speed sensor according to claim 1, characterized in that the first explosion-proof housing (1) comprises a cylindrical housing provided with an opening and a first explosion-proof joint (5), the first explosion-proof joint (5) sealing the opening to form the first cavity (11).
3. A split explosion-proof rotational speed sensor according to claim 2, characterized in that one end of the first explosion-proof cable (3) passes through the first explosion-proof joint (5).
4. A split explosion-proof rotational speed sensor according to claim 2, characterized in that the outer surface of the cylindrical housing is provided with an external thread (12).
5. A split explosion-proof rotational speed sensor according to any one of claims 1 to 4, characterized in that the second explosion-proof housing (2) comprises an upper housing (21) and a lower housing (22), and the upper housing (21) and the lower housing (22) are sealed to form the second cavity (23).
6. A split explosion-proof revolution speed sensor according to claim 5, characterized in that a second explosion-proof joint (6) is provided at one side of the lower case (22), and the other end of the first explosion-proof cable (3) passes through the second explosion-proof joint (6).
7. A split type explosion-proof rotation speed sensor according to claim 6, characterized in that a third explosion-proof joint (7) is arranged on the other side surface of the lower shell (22), a second explosion-proof cable (4) is connected to the second PCBA component (9), and the second explosion-proof cable (4) penetrates out of the third explosion-proof joint (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122393571.4U CN216209227U (en) | 2021-09-30 | 2021-09-30 | Split type explosion-proof revolution speed sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122393571.4U CN216209227U (en) | 2021-09-30 | 2021-09-30 | Split type explosion-proof revolution speed sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216209227U true CN216209227U (en) | 2022-04-05 |
Family
ID=80859536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122393571.4U Active CN216209227U (en) | 2021-09-30 | 2021-09-30 | Split type explosion-proof revolution speed sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216209227U (en) |
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2021
- 2021-09-30 CN CN202122393571.4U patent/CN216209227U/en active Active
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