CN113465649A - Anti-interference power sensor structure - Google Patents
Anti-interference power sensor structure Download PDFInfo
- Publication number
- CN113465649A CN113465649A CN202110858357.3A CN202110858357A CN113465649A CN 113465649 A CN113465649 A CN 113465649A CN 202110858357 A CN202110858357 A CN 202110858357A CN 113465649 A CN113465649 A CN 113465649A
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- mounting box
- power sensor
- interference
- sensor structure
- sensor
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
- G01D11/24—Housings ; Casings for instruments
- G01D11/245—Housings for sensors
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D3/00—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups
- G01D3/028—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups mitigating undesired influences, e.g. temperature, pressure
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- General Physics & Mathematics (AREA)
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Abstract
The invention relates to the field of sensors, in particular to an anti-interference power sensor structure. The anti-interference power sensor structure comprises a mounting box, a sensor assembly and an inflation joint assembly. The mounting box is internally provided with a containing cavity, and the mounting box is provided with an inflation inlet communicated with the containing cavity. The sensor assembly is arranged in the object containing cavity. The inflation connector assembly is connected with the inflation inlet and is used for filling antistatic gas into the containing cavity. According to the anti-interference power sensor structure provided by the invention, the sensor component is arranged in the containing cavity of the mounting box, the antistatic gas is filled into the containing cavity by using the inflation joint component, the surface conductivity and the volume conductivity of the dielectric medium are increased, the static electricity is prevented from being generated, and therefore, the interference of the static electricity to the sensor is reduced.
Description
Technical Field
The invention relates to the field of sensors, in particular to an anti-interference power sensor structure.
Background
Various sensors and automatic detection devices are widely applied in industrial production and used for monitoring various production links. The level of production automation is continuously improved, and some production operations also need to use a computer to control the whole production process.
In such production systems, hundreds of different sensors are typically required to convert various non-electrical quantities into electrical quantities for computer processing. However, since a large number of electric and magnetic interference sources exist in the production field, which may destroy the normal operation of the sensor, the computer and even the whole detection system, the anti-interference technology is an important link of the sensor detection system, and is very necessary for people who are engaged in automatic detection.
Static electricity can cause interference to the system through the circuit, and the change of the electric field induces interference voltage in related circuits or wires of the system, thereby affecting the normal operation of the circuit system and causing interference to the use of the sensor. The traditional anti-interference sensor realizes anti-interference by discharging internal static electricity, but cannot realize anti-interference from the generation of static electricity.
Therefore, there is a need for an interference-proof power sensor that overcomes the above-mentioned problems.
Disclosure of Invention
The invention aims to provide an anti-interference electric sensor, which utilizes an air charging mechanism to charge antistatic air into a sensor bearing mechanism, radically reduces the generation of static electricity and realizes the anti-interference of the sensor.
In order to achieve the purpose, the invention adopts the following technical scheme:
an interference-proof power sensor structure comprising:
the mounting box is internally provided with a containing cavity and is provided with an inflation inlet communicated with the containing cavity;
the sensor assembly is arranged in the object containing cavity;
and the inflation joint component is connected with the inflation port and is used for filling the antistatic gas into the containing cavity.
Alternatively, the inflation fitting assembly comprises:
the transfer box is buckled on the inflation inlet, and a first air vent is formed in the peripheral surface of the transfer box;
the annular piece is sleeved outside the transfer box and provided with a second vent hole, and the annular piece is rotatably connected with the transfer box so that the first vent hole and the second vent hole can be just communicated or staggered;
and the communicating pipe is communicated with the second vent and is used for connecting an air source.
As an alternative, the anti-interference electric power sensor structure further comprises a filter screen arranged at the air inflation opening.
Alternatively, the filter screen is made of a metal material.
As an alternative, the mounting box comprises:
a bottom case;
one end of the upper cover is movably connected with the bottom shell, and the other end of the upper cover is detachably connected with the bottom shell;
and the positioning assembly is arranged in the bottom shell and is used for fixing the sensor assembly.
As an alternative, the positioning assembly comprises:
the vertical plates are arranged at two opposite ends in the bottom shell along the first direction, and the sensor assembly is arranged between the vertical plates at the two ends;
the clamping plate is arranged on the sensor assembly, a clamping groove with a downward opening is formed between the clamping plate and the sensor assembly, and the vertical plate can be clamped in the clamping groove;
the buffer piece, be provided with along the relative both ends of second direction in the drain pan the buffer piece, the buffer piece with sensor module butt, first direction with the second direction is the contained angle setting.
As an alternative, the buffer is made of silicone.
Alternatively, the surface of the buffer member is frosted.
As an alternative, the mounting box further comprises:
the metal film is coated and adhered to the inner wall of the mounting box;
and one end of the ground wire is in conductive connection with the metal film, and the other end of the ground wire extends out of the mounting box.
Alternatively, the mounting box is made of an engineered material.
The invention has the beneficial effects that:
according to the anti-interference power sensor structure provided by the invention, the sensor component is arranged in the containing cavity of the mounting box, the antistatic gas is filled into the containing cavity by using the inflation joint component, the surface conductivity and the volume conductivity of the dielectric medium are increased, the static electricity is prevented from being generated, and therefore, the interference of the static electricity to the sensor is reduced.
Drawings
FIG. 1 is a schematic diagram of a tamper-proof power sensor according to the present invention;
FIG. 2 is a side view of the present invention providing an interference-proof power sensor;
FIG. 3 is a schematic diagram of the configuration of the inflation fitting assembly of the present invention providing a tamper-proof power sensor;
fig. 4 is a top view of the interference-proof power sensor provided by the present invention.
In the figure:
1. mounting a box; 11. a bottom case; 12. an upper cover; 13. a positioning assembly; 131. a vertical plate; 132. a card plug-in; 133. a buffer member; 14. a metal film; 15. a ground wire; 16. an inflation inlet; 171. a male buckle; 172. a female buckle;
2. a sensor assembly;
3. an inflation fitting assembly; 31. a communicating pipe; 32. a transfer box; 33. an annular member;
4. and (4) a filter screen.
Detailed Description
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the elements associated with the present invention are shown in the drawings.
In the present invention, the terms of orientation such as "upper", "lower", "left", "right", "inner" and "outer" are used in the case where no description is made on the contrary, and these terms of orientation are used for easy understanding, and thus do not limit the scope of the present invention.
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 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.
Example one
In industrial automation, sensors are used to convert non-electrical parameters into electricity for processing by a calculator. Electromagnetic interference sources at the production site can affect sensor operation and even destroy the sensor. For electrostatic interference, the conventional anti-interference sensor realizes anti-interference by discharging internal static electricity when in use, but cannot realize anti-interference from the generation of static electricity.
In order to solve this problem, as shown in fig. 1 and 2, the present embodiment provides a tamper-proof power sensor structure including a mounting case 1, a sensor assembly 2, and an inflation joint assembly 3. The mounting box 1 is provided with a containing cavity for containing the sensor component 2. The mounting box 1 is provided with an air charging port 16 communicated with the object containing cavity so as to introduce antistatic gas into the object containing cavity in the mounting box 1 from the outside. The sensor component 2 is arranged in the containing cavity. The inflation connector component 3 is connected with the inflation port 16, and the inflation connector component 3 is used for filling the antistatic gas into the containing cavity. In the embodiment, the sensor component 2 is arranged in the containing cavity of the mounting box 1, the charging connector component 3 is used for charging the antistatic gas into the containing cavity, so that the surface conductivity and the volume conductivity of the dielectric are increased, static electricity is prevented from being generated, and the interference of the static electricity to the sensor is reduced.
In order to prevent the foreign substances from entering the containing cavity of the mounting box 1 from being carried by the external air source and interfering with the operation of the sensor, as shown in fig. 2, the anti-interference electric sensor structure of the embodiment further includes a filter screen 4. The filter screen 4 is arranged at the air charging port 16, and can filter the introduced gas and reduce the influence of impurities in the object containing cavity on the sensor.
Preferably, the mounting box 1 may be made of engineering plastic. The mounting box 1 made of engineering plastics has excellent performance, can bear mechanical stress, and can be used in a wider temperature range and in harsh chemical and physical environments so as to improve the protection capability of the sensor and the adaptability of the use scene of the sensor.
Specifically, the mounting box 1 is of a closable structure, and the mounting box 1 can be opened to replace the sensor component 2, so that the mounting box 1 can be recycled, the compatibility of the mounting box 1 can be improved, and sensors of different types or types can be compatibly mounted; when the mounting box 1 is closed, the mounting box 1 can protect components in the object containing cavity, so that components in the object containing cavity are prevented from being impacted from the outside.
Further, the mounting box 1 includes a bottom case 11 and an upper cover 12. One end of the upper cover 12 is movably connected with the bottom shell 11, and the other end is detachably connected with the bottom shell 11.
In order to realize the movable connection between one end of the upper cover 12 and the bottom case 11, one end of the upper cover 12 is hinged to the bottom case 11. The hinge structure is arranged at the joint of the upper cover 12 and the bottom shell 11, and the hinge structure can improve the connection stability of the upper cover 12 and the bottom shell 11.
As shown in fig. 2, in order to detachably connect the other end of the upper cover 12 to the bottom case 11, the other end of the upper cover 12 may be clamped to the bottom case 11. Specifically, the mounting box 1 includes a clip member including a male buckle 171 and a female buckle 172. The male buckle 171 is disposed on the upper cover 12, and the female buckle 172 is disposed on the bottom case 11. When closed, the male buckle 171 is engaged with the female buckle 172 to fix the other end of the upper cover 12 to the bottom case 11. The male and female fasteners 171 and 172 are separated to open the upper cover 12 and the bottom case 11. The mounting box 1 can be opened and closed quickly through the clamping piece, and the mounting box is convenient and quick.
Furthermore, the clamping piece can be made of engineering plastics, has good performance, can bear larger mechanical stress, and is not easy to break in use, thereby ensuring the connection effect.
In some embodiments, the male buckle 171 may be disposed on the bottom case 11, and correspondingly, the female buckle 172 is disposed on the upper cover 12, so that the upper cover 12 and the bottom case 11 can be detachably connected.
In other embodiments, the other end of the upper cover 12 and the bottom case 11 may be detachably connected by a fastening member, so that the other end of the upper cover 12 and the bottom case 11 are more stably connected.
In this embodiment, the mounting box 1 further includes a positioning component 13, and the positioning component 13 is disposed in the bottom case 11 and is used for fixing the sensor component 2. The sensor assembly 2 is fixed on the bottom shell 11 through the positioning assembly 13, so that the relative movement of the sensor assembly 2 in the containing cavity when the mounting box 1 moves is avoided, and the stability of the sensor during operation is ensured.
Specifically, the positioning assembly 13 includes a vertical plate 131, a card insert 132, and a buffer 133. The vertical plate 131 is disposed in the bottom case 11, the vertical plates 131 are disposed at two opposite ends of the bottom case 11 along the first direction, and the sensor assembly 2 is disposed between the vertical plates 131 at the two ends. By providing the standing plate 131, the movement of the sensor assembly 2 in the first direction can be restricted. Card plug-in components 132 sets up on sensor module 2, forms the downward joint groove of opening between card plug-in components 132 and the sensor module 2, and riser 131 can the joint in the joint inslot. Through setting up card plug-in components 132, can make sensor module 2 card insert on riser 131 on the one hand, make things convenient for sensor module 2's loading and unloading and change, on the other hand can guarantee that sensor module 2 is difficult for removing in the direction of height, makes the sensor stable at the during operation. The buffer member 133 is disposed in the bottom case 11, and the buffer members 133 are disposed at two opposite ends of the bottom case 11 along the second direction, and the buffer members 133 abut against the sensor assembly 2. The first direction and the second direction form an included angle. Set up bolster 133, the restriction does not lock sensor module 2 and along the degree of freedom of first direction, and the energy when absorbing mounting box 1 and receiving the impact simultaneously can stabilize the sensor makes the shock attenuation that sensor module 2 received, and the protection sensor is not impaired because of vibrations.
In other embodiments, the card insert 132 and the sensor assembly 2 may be integrally formed to improve the securing of the card insert 132 to the sensor.
Further, one end of the buffer member 133 may be disposed on an inner wall of the bottom case 11 opposite to the second direction, and the other end abuts against the sensor assembly 2. Utilize the inner wall to provide limiting displacement for bolster 133, can guarantee that the removal of sensor can not surpass necessary scope, promote the stability of sensor work.
In other embodiments, the number of the buffering members 133 may be multiple, and the buffering members are uniformly distributed at two opposite ends of the bottom case 11 along the second direction, so as to prevent the bottom of the sensor assembly 2 from being stressed unevenly.
In order to further improve the anti-interference effect, a buffer 133 made of silicone may be used. Because silica gel has the non-conducting characteristic, the buffer 133 made of silica gel can further reduce the generation of static electricity, and improve the anti-interference capability of the embodiment. Further, the surface of the buffer member 133 made of silicon rubber may be frosted. The surface friction of the cushioning material 133 subjected to the sanding process is increased, and the cushioning material 133 does not easily slip when contacting the sensor unit 2, thereby further improving the restraining effect of the cushioning material 133 on the sensor unit 2.
As shown in fig. 3, the inflation joint assembly 3 of the present embodiment includes a communication pipe 31. The communicating pipe 31 is connected with the air charging port 16 on the mounting box 1, and the other end is connected with an external air source to introduce the antistatic gas. Furthermore, the communicating pipe 31 is a flexible pipe which can be bent at will, the use scene of the mounting box 1 is not limited when the flexible pipe is used, the application is flexible, and an external air source can be ensured to smoothly enter the containing cavity.
Further preferably, the inflation fitting assembly 3 further comprises a transfer case 32 and a ring member 33. The transfer box 32 is buckled on the inflation inlet 16 of the installation box 1, and a first air vent is arranged on the periphery of the transfer box 32. The annular piece 33 is sleeved outside the transit box 32, a second vent is arranged on the annular piece 33, and the second vent is communicated with the communication pipe 31. The annular piece 33 is rotatably connected with the transfer box 32, and the first vent hole and the second vent hole can be just communicated or staggered by rotating the annular piece 33, so that the entering of an external air source is controlled or cut off.
Example two
The embodiment provides a structure of an anti-interference electric sensor, which is further improved on the basis of the first embodiment, so as to better eliminate the interference of static electricity to the sensor.
As shown in fig. 4, the mounting box 1 provided in the present embodiment further includes a metal film 14 and a ground line 15. The metal film 14 is applied to the inner wall of the mounting box 1. One end of the ground wire 15 is electrically connected with the metal film 14, and the other end extends out of the mounting box 1. The metal film 14 is coated on the inner wall of the mounting box 1, can absorb static charges generated in the mounting box 1, and is timely led out of the mounting box 1 through the ground wire 15 which is in conductive connection with the metal film, so that the static charges in the mounting box 1 are prevented from influencing the work of the sensor. Meanwhile, the internally generated charges are conducted to the ground through the ground line 15, and cannot escape to affect the external circuit. On the other hand, when the upper cover 12 and the bottom case 11 of the mounting box 1 are clamped and closed, a closed space enclosed by a metal material is formed in the mounting box 1, so that an electric field of an external interference electric field does not influence circuits and sensors in the mounting box 1, and external magnetic field interference can be prevented.
In order to improve the effect of absorbing static charges in the mounting box 1, the filter net disposed at the air charging port 16 is made of metal to further increase the coverage area of metal in the mounting box 1 and increase the efficiency of absorbing static charges.
Further, the metal film 14 and the filter screen may be made of the same metal material, so as to ensure the uniformity of the types of the metal materials absorbing charges in the mounting box 1, thereby improving the stability of charge absorption. In particular, the metal film 14 and the filter mesh may be made of copper or aluminum. The copper or aluminum has good conductivity, and the copper or aluminum is used as a conductive material, so that static electricity can be effectively conducted to the ground wire 15, and the interference of the static electricity to the sensor is reduced. On the other hand, the strength of copper or aluminum is high, and the metal film 14 and the filter screen made of copper or aluminum can provide the pressure resistance for the mounting box 1.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. An interference-proof power sensor structure, comprising:
the container comprises a mounting box (1), wherein a containing cavity is arranged in the mounting box (1), and an inflation inlet (16) communicated with the containing cavity is formed in the mounting box (1);
the sensor assembly (2) is arranged in the object containing cavity;
the inflation connector component (3) is connected with the inflation port (16), and the inflation connector component (3) is used for filling the antistatic gas into the containing cavity.
2. The tamper-proof electric power sensor structure according to claim 1, characterized in that the gas-filled joint assembly (3) comprises:
the transfer box (32) is buckled on the inflating port (16), and a first air vent (321) is formed in the peripheral surface of the transfer box (32);
the ring piece (33) is sleeved outside the transfer box (32), the ring piece (33) is provided with a second vent hole (331), and the ring piece (33) is rotatably connected with the transfer box (32) so that the first vent hole (321) can be just opposite to and communicated with or staggered with the second vent hole (331);
and the communicating pipe (31) is communicated with the second vent (331) and is used for connecting an air source.
3. The tamper-proof electric power sensor structure according to any one of claims 1-2, further comprising a filter screen disposed at the gas filling port (16).
4. The interference-proof electric power sensor structure according to claim 3, wherein said filter mesh is made of a metal material.
5. The interference-proof electric power sensor structure according to any one of claims 1-2, characterized in that the mounting box (1) includes:
a bottom case (11);
one end of the upper cover (12) is movably connected with the bottom shell (11), and the other end of the upper cover (12) is detachably connected with the bottom shell (11);
the positioning assembly (13) is arranged in the bottom shell (11), and the positioning assembly (13) is used for fixing the sensor assembly (2).
6. The tamper-proof electric power sensor structure according to claim 5, characterized in that the positioning assembly (13) comprises:
the vertical plates (131) are arranged at two opposite ends in the first direction in the bottom shell (11), and the sensor assembly (2) is arranged between the vertical plates (131) at the two ends;
the clamping plug-in component (132) is arranged on the sensor component (2), a clamping groove with a downward opening is formed between the clamping plug-in component (132) and the sensor component (2), and the vertical plate (131) can be clamped in the clamping groove;
the buffer member (133), be provided with along the relative both ends of second direction in drain pan (11) buffer member (133), buffer member (133) with sensor module (2) butt, first direction with the second direction is the contained angle setting.
7. The interference-proof power sensor structure according to claim 6, wherein said buffer member (133) is made of silicone.
8. The tamper-proof power sensor structure according to claim 7, characterized in that a surface of the buffer member (133) is provided with a frosted surface, which is abutted with the sensor assembly (2).
9. The interference-proof electric power sensor structure according to any one of claims 1-2, characterized in that the mounting box (1) further comprises:
the metal film (14) is coated and adhered to the inner wall of the mounting box (1);
one end of the ground wire (15) is in conductive connection with the metal film (14), and the other end of the ground wire (15) extends out of the mounting box (1).
10. The tamper-proof electric power sensor structure according to any one of claims 1-2, characterized in that the mounting box (1) is made of engineering plastic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110858357.3A CN113465649A (en) | 2021-07-28 | 2021-07-28 | Anti-interference power sensor structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110858357.3A CN113465649A (en) | 2021-07-28 | 2021-07-28 | Anti-interference power sensor structure |
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| CN113465649A true CN113465649A (en) | 2021-10-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110858357.3A Pending CN113465649A (en) | 2021-07-28 | 2021-07-28 | Anti-interference power sensor structure |
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| CN212126072U (en) * | 2020-05-07 | 2020-12-11 | 江阴市华彩包装材料有限公司 | Antistatic electronic packaging bag |
| CN213041262U (en) * | 2020-11-06 | 2021-04-23 | 华北电力大学 | Anti-interference power sensor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2439765Y (en) * | 2000-02-29 | 2001-07-18 | 陈家山 | Gas filling protection box for electronic circuit |
| CN101169593A (en) * | 2006-10-25 | 2008-04-30 | 家登精密工业股份有限公司 | Metal lithographic mask box |
| CN203419401U (en) * | 2013-09-10 | 2014-02-05 | 天津伊恩航天科技发展有限公司 | Inflatable composite seal storage and transportation box |
| CN103648249A (en) * | 2013-12-19 | 2014-03-19 | 王轶丹 | Electric appliance ventilating explosion-proof method and ventilating explosion-proof cabinet |
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