CN220438466U - Low-voltage active filter shipment test fixture - Google Patents
Low-voltage active filter shipment test fixture Download PDFInfo
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- CN220438466U CN220438466U CN202321555124.7U CN202321555124U CN220438466U CN 220438466 U CN220438466 U CN 220438466U CN 202321555124 U CN202321555124 U CN 202321555124U CN 220438466 U CN220438466 U CN 220438466U
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- circuit board
- control circuit
- test fixture
- active filter
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- 238000012360 testing method Methods 0.000 title claims abstract description 27
- 230000017525 heat dissipation Effects 0.000 claims abstract description 7
- 230000001681 protective effect Effects 0.000 claims description 35
- 238000004891 communication Methods 0.000 claims description 8
- 238000009423 ventilation Methods 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 4
- 230000002265 prevention Effects 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 5
- 238000001514 detection method Methods 0.000 abstract description 4
- 230000002349 favourable effect Effects 0.000 abstract 1
- 230000000149 penetrating effect Effects 0.000 description 7
- 238000005070 sampling Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model discloses a low-voltage active filter shipment test fixture, which belongs to the technical field of filter detection devices and comprises a support plate, wherein a control circuit board is arranged above the support plate, a relay and a breaker support plate are respectively arranged on two sides of the control circuit board, and the control circuit board is provided with a breaker, a transformer and a relay; the breaker, the mutual inductor and the relay are connected to the upper surface of the supporting plate; the bottom surface of the supporting plate is provided with a resistor; one side of the control circuit board is electrically connected with an energizing indicator lamp, and the other side of the control circuit board is electrically connected with an external terminal. Through the circuit breaker, mutual-inductor and relay are connected in backup pad upper surface and the bottom surface of backup pad is located to the resistance, have realized the upper and lower layering of components and parts in this test fixture, when being convenient for the resistance heat dissipation, also correspondingly reduced the functional connection spare degree of density on the control circuit board, be favorable to later maintenance to the control circuit board.
Description
Technical Field
The utility model belongs to the technical field of filter detection devices, and particularly relates to a low-voltage active filter shipment test fixture.
Background
A filter circuit composed of only passive devices such as resistors, capacitors, and inductors is called a passive filter. If the filter circuit contains active components, such as integrated op-amps, it is referred to as an active filter. Compared with a passive filter, the active filter has the advantages of high efficiency, strong loading capacity, good frequency characteristic, capability of amplifying useful signals while filtering, and the like, and is widely applied.
In the prior art, before the active filter is shipped, whether a communication function, a sampling function, a display function and the like are normal or not is usually required to be confirmed, a control circuit board is usually arranged on the active filter shipment test fixture in the related art, and a mutual inductor, a relay, a resistor and other components are arranged on the control circuit board. Therefore, a low-voltage active filter shipment test fixture needs to be designed.
It should be noted that the information disclosed in the above background section is only for enhancing the understanding of the background of the present disclosure, and thus may include information that does not constitute prior art.
Disclosure of Invention
The inventor finds that the compact and densely assembled test fixture is not only extremely easy to heat and influence the detection accuracy and the service life of the components, but also is unfavorable for the later maintenance because of high component density.
In view of at least one of the above technical problems, the present disclosure provides a low-voltage active filter shipment test fixture, and the specific technical scheme is as follows:
the low-voltage active filter shipment test fixture comprises a support plate, wherein a control circuit board is arranged above the support plate, a relay and a breaker support plate are respectively arranged on two sides of the control circuit board, and the control circuit board is provided with a breaker, a transformer and a relay; the circuit breaker, the mutual inductor and the relay are connected to the upper surface of the supporting plate; the bottom surface of the supporting plate is provided with a resistor; one side of the control circuit board is electrically connected with an energizing indicator lamp, and the other side of the control circuit board is electrically connected with an external terminal.
In some embodiments of the present disclosure, the support plate is provided with a height support on both sides of the bottom surface thereof, and the height of the height support is higher than the thickness of the resistor.
In some embodiments of the disclosure, the device further comprises a protective shell, the support plate is horizontally connected in the protective shell, a gap for ventilation is arranged between the resistor and the bottom surface of the protective shell, and ventilation and heat dissipation channels are arranged at the front end and the rear end of the protective shell relatively.
In some embodiments of the present disclosure, the protective housing is a cube structure, the protective housing is formed by splicing sheet metal parts, and the outer surface of the protective housing is provided with lifting aids.
In some embodiments of the disclosure, the control circuit board is provided with a scram switch acting on the circuit, the scram switch being secured to an outer surface of the protective shell.
In some embodiments of the present disclosure, the support plate is connected with a support frame, and the circuit breaker is fixed to the outer surface of the protective case through the support frame.
In some embodiments of the disclosure, the external terminal includes a secondary terminal and a wall penetrating terminal, the secondary terminal and the wall penetrating terminal being fixed to a rear end face of the protective case.
In some embodiments of the present disclosure, the secondary terminal is coupled with a 485 communication module.
In some embodiments of the present disclosure, a rear end protection plate for preventing contact is configured at the interface of the through-wall terminal.
Compared with the prior art, the utility model has the following beneficial effects:
through the circuit breaker, the mutual inductor and the relay are connected to the upper surface of the supporting plate, and the resistor is arranged on the bottom surface of the supporting plate, so that the upper and lower layering of components in the test jig is realized, the resistor is convenient to radiate heat, the density of functional connecting pieces on the control circuit board is correspondingly reduced, and the control circuit board is convenient to maintain in the later period;
through the control circuit board that sets up in the backup pad, and with the control circuit board is joined in marriage the use the circuit breaker, the mutual-inductor with after the corresponding voice module of external terminal join in marriage, realize that the detection such as communication, output current sampling to low pressure active filter can concentrate on a tool, through removing the backup pad is to the position of needs, can carry out shipment inspection to active filter anytime and anywhere, and the service condition is very nimble.
Drawings
FIG. 1 is a perspective view of embodiment 3 of the structure of the present utility model;
FIG. 2 is a schematic perspective view showing the internal structure of embodiment 3 in the structure of the present utility model;
FIG. 3 is a schematic perspective view of a resistor layer according to embodiment 3 of the present utility model;
FIG. 4 is a schematic perspective view of the rear view of embodiment 3 of the structure of the present utility model;
the reference numerals in the figures illustrate: 1. a support plate; 2. a control circuit board; 21. an emergency stop switch; 3. a circuit breaker; 31. a support frame; 4. a transformer; 5. a relay; 6. a resistor; 7. energizing an indicator lamp; 8. an external terminal; 81. a secondary terminal; 82. a wall penetrating terminal; 9. a protective shell; 91. a ventilation and heat dissipation channel; 92. the auxiliary piece is lifted.
Description of the embodiments
For a better understanding of the objects, structures and functions of the present utility model, reference should be made to the accompanying drawings in which embodiments of the utility model are shown, and in which it is apparent that some, but not all embodiments of the utility model are described.
The component parts themselves are numbered herein only to distinguish between the stated objects and do not have any sequential or technical meaning. In this disclosure, the term "coupled" includes both direct and indirect, "as used herein, unless specifically indicated otherwise. In the description of the present application, it should be understood that the azimuth or positional relationship indicated by the azimuth terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. are based on the azimuth or positional relationship shown in the drawings, are for convenience of description only, and do not indicate or imply that the apparatus or unit referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present application.
As shown in fig. 1 to 4 of the drawings, a low-voltage active filter shipment test fixture is designed, and comprises a support plate 1, wherein a control circuit board 2 is arranged above the support plate 1, and the control circuit board 2 is provided with a circuit breaker 3, a mutual inductor 4 and a relay 5; the breaker 3, the mutual inductor 4 and the relay 5 are connected to the upper surface of the supporting plate 1; the bottom surface of the supporting plate 1 is provided with a resistor 6; the control circuit board 2 one side electricity is connected with circular telegram pilot lamp 7, control circuit board 2 opposite side electricity is connected with external terminal 8, through circuit breaker 3, mutual-inductor 4 with relay 5 connect in backup pad 1 upper surface just resistance 6 locates the bottom surface of backup pad 1 has realized the upper and lower layering of components and parts in this test fixture, is convenient for when resistance 6 is radiating, also correspondingly reduced the functional connection spare degree of intensive on the control circuit board 2 does benefit to the later stage and to the maintenance of control circuit board 2 and each components and parts.
During the use, through control circuit board 2 that sets up on backup pad 1, and with control circuit board 2 joins in marriage the use circuit breaker 3, mutual-inductor 4 with relay 5, external terminal 8 joins in marriage behind the corresponding voice module, realizes detecting communication, output current sampling etc. to low pressure active filter and can concentrate on a tool, through removing backup pad 1 to the position of needs, can carry out shipment inspection to active filter anytime and anywhere, and the service condition is very nimble, compares original structure and does not increase weight, and the lateral dimension of reducing simultaneously is convenient for remove as required more.
In the above embodiments, three embodiments are listed to implement the above technical solutions:
the first embodiment discloses a low-voltage active filter shipment test fixture, which comprises a support plate 1, wherein a control circuit board 2 is arranged above the support plate 1, and the control circuit board 2 is provided with a circuit breaker 3, a mutual inductor 4 and a relay 5; the breaker 3, the mutual inductor 4 and the relay 5 are connected to the upper surface of the supporting plate 1; the bottom surface of the supporting plate 1 is provided with a resistor 6; the control circuit board 2 is electrically connected with the power-on indicator lamp 7 on one side, the other side of the control circuit board 2 is electrically connected with the external terminal 8, through the circuit breaker 3, the mutual inductor 4 and the relay 5 are connected to the upper surface of the supporting plate 1, and the resistor 6 is arranged on the bottom surface of the supporting plate 1, so that the upper and lower layering of components in the test fixture is realized, the heat dissipation of the resistor 6 is facilitated, the density of functional connecting pieces on the control circuit board 2 is correspondingly reduced, and the later maintenance of the control circuit board 2 and components is facilitated;
in this embodiment, the height supports may be several rubber supports provided on the bottom surface of the support plate 1, where the heights of the rubber supports are consistent, and the heights of the height supports are higher than the thickness of the resistor 6, and when in use, the disclosure may be placed at a working place by the rubber supports as required; the external terminal 8 is connected with a voice module, so that whether COM communication is normal, whether touch screen communication is normal, whether emergency stop function is normal or whether output current sampling is normal can be detected; the power-on indicator lamp 7 is arranged on the outer surface of the protective shell 9, so that a user can timely sense, the power-on state can be intuitively displayed, and emergency treatment under dangerous conditions is facilitated.
The second embodiment discloses a low pressure active filter shipment test fixture, and the difference between this embodiment and embodiment one is, still includes protective housing 9, backup pad 1 horizontal connection in the protective housing 9, resistance 6 with be equipped with the clearance that is used for ventilation between the bottom surface of protective housing 9, both ends are equipped with ventilation and heat dissipation passageway 91 relatively around the protective housing 9, protective housing 9 is the cube structure, protective housing 9 is spliced by the sheet metal component and forms, the surface of protective housing 9 is furnished with and is carried and take auxiliary 92.
On the basis of the second embodiment, the design can be further optimized, the protective shell 9 is formed by splicing six sheet metal parts through bolts, so that six surfaces of the protective shell 9 can be independently disassembled, and later maintenance according to needs is facilitated; the support plate 1 is provided with M3 screw holes for fixing the saddle-shaped wire tying seat, so that internal wiring is concise and attractive.
As shown in fig. 1 to fig. 4, a third embodiment discloses a low-voltage active filter shipment test fixture, and the difference between the present embodiment and the second embodiment is that the ventilation and heat dissipation channel 91 is provided with a dust cover; the control circuit board 2 is provided with a scram switch 21 acting on a circuit, the scram switch 21 is fixed on the outer surface of the protective shell 9, in this embodiment, the scram switch 21 may be arranged on the front end surface of the protective shell 9, because the scram switch 21 is additionally arranged to be matched with the power-on indicator 7 for safety, so that emergency treatment in dangerous situations is facilitated; the external terminal 8 comprises a secondary terminal 81 and a wall penetrating terminal 82, the secondary terminal 81 and the wall penetrating terminal 82 are fixed on the rear end face of the protective shell 9, and the secondary terminal 81 is connected with a 485 voice communication module in a matching mode.
On the basis of the third embodiment, the design can be further optimized, the rear end protection plate for preventing touch is arranged at the interface of the wall penetrating terminal 82, the wall penetrating terminal 82 is a strong electric terminal, and the rear end protection plate is arranged at the position for effectively preventing safety accidents caused by misoperation of operators on the strong electric terminal.
It will be understood that the utility model has been described in terms of several embodiments, and that various changes and equivalents may be made to these features and embodiments by those skilled in the art without departing from the spirit and scope of the utility model. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.
Claims (10)
1. The utility model provides a low pressure active filter shipment test fixture which characterized in that: the intelligent control device comprises a supporting plate (1), wherein a control circuit board (2) is arranged above the supporting plate (1), and the control circuit board (2) is provided with a circuit breaker (3), a mutual inductor (4) and a relay (5); the circuit breaker (3), the mutual inductor (4) and the relay (5) are connected to the upper surface of the supporting plate (1); a resistor (6) is arranged on the bottom surface of the supporting plate (1); one side of the control circuit board (2) is electrically connected with an energizing indicator lamp (7), and the other side of the control circuit board (2) is electrically connected with an external terminal (8).
2. The low-voltage active filter shipment test fixture according to claim 1, characterized in that the two sides of the bottom surface of the support plate (1) are provided with height supports, the height of which is higher than the thickness of the resistor (6).
3. The low-voltage active filter shipment test fixture according to claim 2, further comprising a protective housing (9), wherein the support plate (1) is horizontally connected in the protective housing (9), a gap for ventilation is arranged between the resistor (6) and the bottom surface of the protective housing (9), and ventilation and heat dissipation channels (91) are oppositely arranged at the front end and the rear end of the protective housing (9).
4. The low-voltage active filter shipment test fixture according to claim 3, characterized in that the protective housing (9) is in a cube structure, the protective housing (9) is formed by splicing sheet metal parts, and a lifting auxiliary (92) is configured on the outer surface of the protective housing (9).
5. A low-voltage active filter shipment test fixture according to claim 3, characterized in that the control circuit board (2) is provided with a scram switch (21) acting on the circuit, the scram switch (21) being fixed to the outer surface of the protective shell (9).
6. A low-voltage active filter shipment test fixture according to claim 3, characterized in that the support plate (1) is connected with a support frame (31), and the circuit breaker (3) is fixed to the outer surface of the protective shell (9) through the support frame (31).
7. A low voltage active filter shipment test fixture according to claim 3, characterized in that the energizing indicator light (7) is provided on the outer surface of the protective housing (9).
8. The low-voltage active filter shipment test fixture according to claim 7, characterized in that the external terminal (8) includes a secondary terminal (81) and a through-wall terminal (82), and the secondary terminal (81) and the through-wall terminal (82) are fixed to the rear end face of the protective case (9).
9. The low-voltage active filter shipment test fixture according to claim 8, characterized in that the secondary terminal (81) is coupled with a 485 communication module.
10. The low voltage active filter shipment test fixture of claim 8, wherein the interface of the through-wall terminal (82) is configured with a back end protection plate for touch prevention.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321555124.7U CN220438466U (en) | 2023-06-19 | 2023-06-19 | Low-voltage active filter shipment test fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321555124.7U CN220438466U (en) | 2023-06-19 | 2023-06-19 | Low-voltage active filter shipment test fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220438466U true CN220438466U (en) | 2024-02-02 |
Family
ID=89692738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321555124.7U Active CN220438466U (en) | 2023-06-19 | 2023-06-19 | Low-voltage active filter shipment test fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220438466U (en) |
-
2023
- 2023-06-19 CN CN202321555124.7U patent/CN220438466U/en active Active
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