CN217820551U

CN217820551U - Anti-interference frequency converter data acquisition device

Info

Publication number: CN217820551U
Application number: CN202221417478.0U
Authority: CN
Inventors: 覃陵枝; 黄鹏; 周益枫; 郑雯
Original assignee: Wuhan Shenzhimiao Technology Co ltd
Current assignee: Wuhan Shenzhimiao Technology Co ltd
Priority date: 2022-06-08
Filing date: 2022-06-08
Publication date: 2022-11-15
Anticipated expiration: 2032-06-08

Abstract

The utility model discloses an anti-interference converter data acquisition device, including shielding box, shield cover, mounting bracket, winding displacement pipe, filtering layer and connecting strip, the shield cover has been cup jointed to the shielding box upper end, shielding box and shield cover constitute by shell, filtering layer and shielding layer, the equal embedding of shielding box both ends outer wall installs the winding displacement pipe that the equidistance distributes, the winding displacement inside pipe wall all is provided with the shell fragment that is circular array distribution, the laminating of shielding box bottom inner wall has the insulating layer, the insulating layer upper surface is provided with mounting bracket and terminal row, shielding box upper end outer wall all is provided with the connecting strip with shielding cover bottom outer wall, the grafting of connecting strip surface has evenly distributed's first bolt, first bolt outer wall has cup jointed the copper sheet. The utility model discloses can arrange the hall sensor of converter collection data usefulness in the mounting bracket on, shielding box and shield cover can carry out comprehensive effectual shielding to hall sensor, play better anti-interference effect.

Description

Anti-interference frequency converter data acquisition device

Technical Field

The utility model relates to a technical field is used to the converter, specifically is an anti-interference converter data acquisition device.

Background

The frequency converter is an electric energy control device which converts a power frequency power supply into another frequency by utilizing the on-off action of an electric semiconductor device and can realize the functions of soft start, variable frequency speed regulation, improvement of operation precision, change of power factors, overcurrent/overvoltage/overload protection and the like of the step motor of the alternating current frequency converter. The converter is when data acquisition, and voltage and electric current are measured to the mode that adopts hall sensor mostly, but when being applied to the data detection of motor, because the motor operation can produce the magnetic field to the produced pulse of converter all can bring the influence to hall sensor's use, consequently, need carry out anti-jamming measure to hall sensor's operational environment.

The existing electromagnetic shielding mode mostly adopts a wrapping mode and is used for resisting interference on a precise electronic instrument, but in the actual use process, the single wrapping type anti-interference effect only can play a part of anti-interference effect, and an effective Hall sensor anti-interference measure is lacked under a complex use environment.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an anti-jamming converter data acquisition device to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an anti-jamming converter data acquisition device, includes shielding box, shield cover, mounting bracket, winding displacement pipe, filtering layer and connecting strip, the shield cover has been cup jointed to shielding box upper end, shielding box and shield cover constitute by shell, filtering layer and shielding layer, the filtering layer is located between shell and the shielding layer, the winding displacement pipe that the equidistance distributes is all installed in the embedding of shielding box both ends outer wall, the winding displacement inside pipe wall all is provided with the shell fragment that is circular array distribution, the laminating of shielding box bottom inner wall has the insulating layer, the insulating layer upper surface is provided with mounting bracket and terminal row, shielding box upper end outer wall all is provided with the connecting strip with shielding cover bottom outer wall, the connecting strip surface is pegged graft and is had evenly distributed's first bolt, first bolt outer wall has cup jointed the copper sheet.

Preferably, the terminal strip is located the mounting bracket both sides, and the terminal strip corresponds with the winding displacement pipe displacement phase.

Preferably, the shielding layer is located the shielding box and the inner wall of the shielding cover, and through holes which are uniformly distributed are formed in the filtering layer.

Preferably, the copper sheet is connected with a grounding wire.

Preferably, the outer wall of the upper end of the shielding box and the inner wall of the lower end of the shielding cover are both provided with tabling grooves which are tabling with each other.

Preferably, the winding displacement pipe is rotatably inserted with symmetrically distributed second bolts in a manner of being away from the outer wall of one end of the shielding box.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses can fix a position the hall sensor that the converter gathered data usefulness on the mounting bracket, the interconnecting link between motor, converter and the hall sensor is connected through winding displacement pipe and terminal row, adopt the mode that shielding box and shield cover combine, keep apart hall sensor place environment and external environment, cooperation shell, filtering layer and shielding layer eliminate external electromagnetic interference and impulse interference respectively, effectively solved hall sensor in the electromagnetic interference environment, the problem of measuring data deviation appears, ensured the data acquisition validity of converter; meanwhile, the circuit can be extruded by the elastic pieces in the wire arranging pipe, the positioning of the circuit is realized, the distance between the elastic pieces can be reduced by matching the precession of the second bolt, and the stability of the circuit in the wire arranging pipe is further improved.

Drawings

FIG. 1 is a schematic view of the main sectional structure of the present invention;

fig. 2 is a schematic view of a partial cross-sectional structure of the shielding box and the shielding cover of the present invention;

fig. 3 is a schematic view of the cross-sectional structure of the flat cable tube of the present invention.

In the figure: 1. a shield case; 2. a shield case; 3. an insulating layer; 4. a mounting frame; 5. a terminal block; 6. a ground line; 7. a wire arrangement pipe; 8. a housing; 9. a filter layer; 10. a shielding layer; 11. a first bolt; 12. a copper sheet; 13. a connecting strip; 14. a fitting groove; 15. a through hole; 16. a spring plate; 17. and a second bolt.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to fig. 3, the present invention provides an embodiment: the utility model provides an anti-interference converter data acquisition device, including shielding box 1, shield cover 2, mounting bracket 4, winding displacement pipe 7, filtering layer 9 and connecting strip 13, shielding cover 2 has been cup jointed to shielding box 1 upper end, the gomphosis groove 14 of looks gomphosis is all seted up to shielding box 1 upper end outer wall and 2 lower extreme inner walls of shield cover, shielding box 1 and shield cover 2 are by shell 8, filtering layer 9 and shielding layer 10 constitute, filtering layer 9 is located between shell 8 and the shielding layer 10, shielding layer 10 is located

shielding box

1 and 2 inner walls of shield cover, the inside through-hole 15 that is provided with evenly distributed of filtering layer 9, shielding box 1 both ends outer wall all imbeds and installs equidistance distribution's winding displacement pipe 7, winding displacement pipe 7 inner wall all is provided with the shell fragment 16 that is circular array distribution, winding displacement pipe 7 deviates from 1 one end outer wall of shielding box and rotates the second bolt 17 that the grafting has symmetric distribution, the staff can fix a position the hall sensor that the converter was gathered data and is used on mounting bracket 4, and carry out the winding displacement pipe 16 through winding displacement pipe 7 and terminal row 5 and carry out the cooperation of the retractable line, the further improvement of the winding displacement pipe 16, the cooperation of the winding displacement pipe 16 line of the accessible, the improvement of the winding displacement pipe is carried out the cooperation of the retractable line.

The inner wall of the bottom end of the shielding box 1 is attached with the insulating layer 3, the upper surface of the insulating layer 3 is provided with the mounting rack 4 and the terminal strip 5, the terminal strip 5 is located on two sides of the mounting rack 4, the terminal strip 5 corresponds to the displacement of the flat cable tube 7, the outer wall of the upper end of the shielding box 1 and the outer wall of the bottom end of the shielding cover 2 are both provided with the connecting strips 13, the surfaces of the connecting strips 13 are inserted with the first bolts 11 which are uniformly distributed, the outer wall of each first bolt 11 is sleeved with the copper sheet 12, the copper sheet 12 is connected with the grounding wire 6, the shielding box 1 is combined with the shielding cover 2 after the Hall sensor is connected, the environment where the Hall sensor is located is isolated from the external environment, the shell 8 is matched, the filtering layer 9 and the shielding layer 10 respectively eliminate the external electromagnetic interference and the pulse interference, the shell 8 conducts between the connecting strips 13 and the copper sheet 12, the grounding of the shell 8 can be achieved through the grounding wire 6, the through holes 15 are formed in the filtering layer 9, pulses can be dispersed, the pulses can be reduced, the interference of pulse signals, the interference caused to the Hall sensor, and the effect of improving the electromagnetic shielding property is achieved by the shielding layer 10, the electromagnetic interference of the Hall sensor, the electromagnetic interference environment of the Hall sensor, the problem of measuring data is effectively solved, and the frequency conversion data collection effectiveness of the device is guaranteed.

The working principle is as follows: the staff can be with the hall sensor location that the converter gathered data usefulness on mounting bracket 4 to be connected motor, interconnecting link between converter and the hall sensor through winding displacement pipe 7 and terminal row 5, accessible shell fragment 16 extrudees the circuit in the winding displacement pipe 7, realizes the location of circuit, and cooperation second bolt 17's precession can reduce the interval between the shell fragment 16, further improves the stability of circuit in winding displacement pipe 7.

After hall sensor connects the completion, combine shield box 1 and shield cover 2, keep apart hall sensor place environment and external environment, cooperation shell 8, filtering layer 9 and shielding layer 10 eliminate external electromagnetic interference and pulse interference respectively, shell 8 passes through the conduction between connecting strip 13 and copper sheet 12, accessible earth connection 6 realizes the ground connection of shell 8, contain through-hole 15 in the filtering layer 9, can disperse the pulse, reduce the interference that pulse signal caused hall sensor, and shielding layer 10 has played the effect that improves electromagnetic shielding nature, hall sensor has effectively been solved in the electromagnetic interference environment, the problem of measured data deviation appears, the data acquisition validity of converter has been ensured.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides an anti-interference converter data acquisition device, includes shielding box (1), shield cover (2), mounting bracket (4), winding displacement pipe (7), filtering layer (9) and connecting strip (13), its characterized in that: shield box (1) upper end has cup jointed shield cover (2), shield box (1) and shield cover (2) constitute by shell (8), filtering layer (9) and shielding layer (10), filtering layer (9) are located between shell (8) and shielding layer (10), the winding displacement pipe (7) that the equidistance distributes are all installed in the equal embedding of shield box (1) both ends outer wall, winding displacement pipe (7) inner wall all is provided with shell fragment (16) that are circular array and distribute, shield box (1) bottom inner wall laminating has insulating layer (3), insulating layer (3) upper surface is provided with mounting bracket (4) and terminal row (5), shield box (1) upper end outer wall all is provided with connecting strip (13) with shield cover (2) bottom outer wall, connecting strip (13) surface grafting has evenly distributed's first bolt (11), first bolt (11) outer wall has cup jointed copper sheet (12).

2. The interference free frequency converter data acquisition device of claim 1 further comprising: the terminal strip (5) is positioned on two sides of the mounting frame (4), and the terminal strip (5) corresponds to the displacement of the flat cable tube (7).

3. The apparatus of claim 1, wherein the data acquisition unit comprises: the shielding layer (10) is located the inner walls of the shielding box (1) and the shielding cover (2), and through holes (15) which are uniformly distributed are formed in the filtering layer (9).

4. The interference free frequency converter data acquisition device of claim 1 further comprising: the copper sheet (12) is connected with a grounding wire (6).

5. The interference free frequency converter data acquisition device of claim 1 further comprising: the outer wall of the upper end of the shielding box (1) and the inner wall of the lower end of the shielding cover (2) are both provided with embedded grooves (14) which are embedded with each other.

6. The interference free frequency converter data acquisition device of claim 1 further comprising: and the wire arranging pipe (7) deviates from the outer wall of one end of the shielding box (1) and is rotationally inserted with symmetrically distributed second bolts (17).