CN213041262U

CN213041262U - Anti-interference power sensor

Info

Publication number: CN213041262U
Application number: CN202022544540.XU
Authority: CN
Inventors: 刘康琪; 徐志远
Original assignee: North China Electric Power University
Current assignee: North China Electric Power University
Priority date: 2020-11-06
Filing date: 2020-11-06
Publication date: 2021-04-23
Anticipated expiration: 2030-11-06

Abstract

The utility model relates to an jam-proof power sensor, including plastic casing, inner core, mount pad and metal-back, the inner wall top fusion of plastic casing has the installation piece, metal-back movable mounting is on the installation piece, install the metal shrouding through the bolt on the metal-back, placed the inner core in the metal-back, the mount pad passes through the inner wall of bolt fastening at plastic casing, be fixed with damping spring on the mount pad, damping spring's other end welding has the clamp plate, the clamp plate contacts with metal-back and metal shrouding each other respectively. The utility model discloses, compact structure, it is convenient to use, and the effectual interference killing feature who improves the sensor satisfies personnel's user demand.

Description

Anti-interference power sensor

Technical Field

The utility model relates to a sensor field, concretely relates to jam-proof power sensor.

Background

With the progress of modern technology, the level of production automation is also continuously increasing. In industrial production, various sensors and automatic detection devices are widely used for monitoring various production links, and computers are also needed for controlling the whole production process. 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 it is very necessary for people who are engaged in automatic detection.

Mechanical vibration and impact cause the electric elements of instruments or some devices in the system to vibrate, change and the like, so that the normal operation of the system is influenced, electricity and magnetism can generate interference effect on the system through a circuit and a magnetic circuit, and the change of an electric field and a magnetic field induces interference voltage in related circuits or wires of the system, so that the normal operation of the system is influenced.

In the use process of the sensor, the use of the sensor is interfered by external mechanical collision, electrostatic interference and the like, so the invention discloses the invention.

SUMMERY OF THE UTILITY MODEL

The utility model provides an jam-proof power sensor has solved above technical problem.

The utility model provides a scheme as follows of above-mentioned technical problem: including plastic casing, inner core, mount pad and metal-back, the inner wall top welding of plastic casing has the installation piece, metal-back movable mounting is on the installation piece, install the metal shrouding through the bolt on the metal-back, has placed the inner core in the metal-back, the inner wall at plastic casing is passed through the bolt fastening to the mount pad, be fixed with damping spring on the mount pad, damping spring's other end welding has the clamp plate, the clamp plate contacts with metal-back and metal shrouding each other respectively.

The utility model has the advantages that: in the using process of the utility model, through the design of the metal shell and the ground wire, the metal is made into a closed metal container made of materials and is connected with the ground wire, the circuit to be shielded is arranged in the metal container, so that the electric field of the external interference electric field does not influence the circuit inside the metal container, conversely, the power line generated by the internal circuit can not escape to influence the external circuit, in addition, through the design of the damping spring, when the plastic shell is subjected to mechanical impact, the spring absorbs the impact force and then buffers and releases the impact force, thereby playing an effective damping role, greatly reducing the impact force on the inner core, through the design of the roller bead, the connecting rod positions the position of the metal shell, when the metal shell generates micro-amplitude displacement, the connecting rod drives the roller bead to rotate on the mounting block, through the friction force between the connecting rod and the mounting block, the displacement amplitude of the metal shell is further reduced, the utility, compact structure, it is convenient to use, and the effectual interference killing feature who improves the sensor satisfies personnel's user demand.

On the basis of the technical scheme, the utility model discloses can also do following improvement.

Furthermore, the number of the plastic shells is two, and the plastic shells are connected with each other through bolts.

The beneficial effect of adopting the further scheme is that: the device is convenient to disassemble and overhaul.

Furthermore, the lower surface of the metal shell is provided with a ground wire through a bolt, and the other end of the ground wire penetrates through the plastic shell.

The beneficial effect of adopting the further scheme is that: playing the role of anti-interference.

Further, the upper end of the inner core is wrapped by an upper cushion block, the lower end of the inner core is wrapped by a lower cushion block, and the lower cushion block and the upper cushion block are in mutual contact with the metal shell.

The beneficial effect of adopting the further scheme is that: the cushion block is made of plastic materials, so that the inner core is not directly contacted with the metal shell.

Further, the original length of the damping spring is larger than the width of the mounting seat.

The beneficial effect of adopting the further scheme is that: the damping springs are in a compressed state, so that the metal shell is ensured to be in a balanced state through mutual matching of the springs.

Further, the lower surface of installation piece rotates installs the roller pearl the welding has the connecting rod on the roller pearl, the metal casing welding is in the bottom of connecting rod.

The beneficial effect of adopting the further scheme is that: further balancing the position of the metal shell.

The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings. The detailed description of the present invention is given by the following examples and the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:

fig. 1 is a schematic front view of an interference-proof power sensor according to an embodiment of the present invention;

fig. 2 is a schematic top view of an interference-proof power sensor according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a in fig. 1 of an interference-proof power sensor according to an embodiment of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a plastic housing; 2. a lower cushion block; 3. an inner core; 4. an upper cushion block; 5. rolling beads; 6. mounting blocks; 7. a connecting rod; 8. a mounting seat; 9. a metal shell; 10. a ground wire; 11. a damping spring; 12. pressing a plate; 13. and (4) a metal sealing plate.

Detailed Description

The principles and features of the present invention are described below in conjunction with the accompanying fig. 1-3, the examples given are intended to illustrate the present invention and are not intended to limit the scope of the invention. The invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become more fully apparent from the following description and appended claims. It should be noted that the drawings are in simplified form and are not to precise scale, and are provided for convenience and clarity in order to facilitate the description of the embodiments of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to fig. 3, the present invention provides an embodiment: the utility model provides an anti-interference power sensor, including plastic casing 1, inner core 3, mount pad 8 and metal-back 9, plastic casing 1 totally two, through bolted interconnection between the plastic casing 1, ground wire 10 is installed through the bolt to the lower surface of metal-back 9, plastic casing 1 is run through to the other end of ground wire 10, through the design of metal-back 9 and ground wire 10, the metal makes into confined metal container for the material, and be connected with ground wire 10, arrange the circuit that needs the shielding wherein in, make the electric field of external disturbance electric field not influence its inside circuit, conversely, the power line that the internal circuit produced also can't escape to influence the external circuit.

The inner wall top of plastic casing 1 has welded the installation piece 6, metal-back 9 movable mounting is on installation piece 6, the lower surface of installation piece 6 rotates and installs that the welding has connecting rod 7 on 5 roller pearls 5 of roller pearls, metal-back 9 welding is in the bottom of connecting rod 7, through the design of roller pearls 5, connecting rod 7 fixes a position metal-back 9's position, when metal-back 9 produced the displacement of a little, connecting rod 7 drives roller pearls 5 and rotates on installation piece 6, through frictional force between the two, further reduce the displacement range of metal-back 9.

Install metal shrouding 13 through the bolt on the metal casing 9, inner core 3 has been placed in the metal casing 9, mount pad 8 passes through the bolt fastening at plastic casing 1's inner wall, be fixed with damping spring 11 on the mount pad 8, damping spring 11's other end welding has clamp plate 12, clamp plate 12 contacts with metal casing 9 and metal shrouding 13 each other respectively, damping spring 11's original length is greater than mount pad 8's width, in addition through damping spring 11's design, when plastic casing 1 receives mechanical shock, the spring absorbs the impact force then buffer release, play effectual damping effect, reduce the impact force that inner core 3 received by a wide margin, the utility model discloses, compact structure, it is convenient to use, the interference killing feature of effectual improvement sensor, satisfy personnel's user demand.

The upper end parcel of inner core 3 has last cushion 4, and the lower extreme parcel of inner core 3 has lower cushion 2, and lower cushion 2 and last cushion 4 and metal-back 9 contact each other, and the cushion adopts the plastics material, ensures that inner core 3 is not direct and metal-back 9 contact each other.

The working principle is as follows: in the use process of the utility model, through the design of the metal shell 9 and the ground wire 10, the metal is made into a closed metal container, and is connected with the ground wire 10, the circuit which needs to be shielded is arranged in the ground wire, so that the electric field of the external interference electric field does not influence the internal circuit, and conversely, the electric power line generated by the internal circuit can not escape to influence the external circuit, and in addition, through the design of the damping spring 11, when the plastic shell 1 is subjected to mechanical impact, the spring absorbs the impact force and then releases the impact force in a buffering manner, so that the effective vibration damping effect is achieved, the impact force on the inner core 3 is greatly reduced, the connecting rod 7 positions the metal shell 9 through the design of the roller balls 5, when the metal shell 9 generates slight displacement, the connecting rod 7 drives the roller beads 5 to rotate on the mounting block 6, and the displacement amplitude of the metal shell 9 is further reduced through the friction force between the roller beads and the mounting block.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way; the present invention can be smoothly implemented by those skilled in the art according to the drawings and the above description; however, those skilled in the art should understand that changes, modifications and variations made by the above-described technology can be made without departing from the scope of the present invention, and all such changes, modifications and variations are equivalent embodiments of the present invention; meanwhile, any changes, modifications, evolutions, etc. of the above embodiments, which are equivalent to the actual techniques of the present invention, still belong to the protection scope of the technical solution of the present invention.

Claims

1. The utility model provides an interference-proof power sensor, its characterized in that, includes plastic casing (1), inner core (3), mount pad (8) and metal-back (9), the inner wall top welding of plastic casing (1) has installation piece (6), metal-back (9) movable mounting is on installation piece (6), install metal shrouding (13) through the bolt on metal-back (9), placed inner core (3) in metal-back (9), mount pad (8) are through the inner wall of bolt fastening at plastic casing (1), be fixed with damping spring (11) on mount pad (8), the other end welding of damping spring (11) has clamp plate (12), clamp plate (12) respectively with metal-back (9) and metal shrouding (13) each other contact.

2. The interference-proof power sensor according to claim 1, wherein there are two plastic housings (1), and the plastic housings (1) are connected to each other by bolts.

3. The interference-proof electric sensor according to claim 1, wherein the lower surface of the metal shell (9) is mounted with a ground wire (10) by a bolt, and the other end of the ground wire (10) penetrates the plastic housing (1).

4. The interference-proof electric sensor of claim 1, wherein the upper end of the inner core (3) is wrapped with an upper pad (4), the lower end of the inner core (3) is wrapped with a lower pad (2), and the lower pad (2) and the upper pad (4) are in contact with the metal shell (9).

5. Interference-proof electric sensor according to claim 1, characterized in that the damping spring (11) has an original length which is greater than the width of the mounting seat (8).

6. The interference-proof power sensor according to claim 1, wherein the lower surface of the mounting block (6) is rotatably mounted with a roller ball (5), the roller ball (5) is welded with a connecting rod (7), and the metal shell (9) is welded at the bottom end of the connecting rod (7).