CN201917591U - Shell structure of harmonic analyzer special for active power filter - Google Patents
Shell structure of harmonic analyzer special for active power filter Download PDFInfo
- Publication number
- CN201917591U CN201917591U CN2010206632958U CN201020663295U CN201917591U CN 201917591 U CN201917591 U CN 201917591U CN 2010206632958 U CN2010206632958 U CN 2010206632958U CN 201020663295 U CN201020663295 U CN 201020663295U CN 201917591 U CN201917591 U CN 201917591U
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- Prior art keywords
- shell
- circuit board
- active power
- power filter
- shell structure
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a shell structure of a harmonic analyzer special for an active power filter. The shell structure is arranged on an active power filter box, and comprises a shell, a power supply circuit board, a display circuit board and an external terminal, wherein the shell consists of a front part and a back part which are fastened by screws; the shell is made of a plastic material; the display circuit board and the power supply circuit board are arranged at intervals in the shell from front to back, so that an electric gap is effectively ensured; and the external terminal is led out of one side of the back part of the shell, so that a signal wire can be connected conveniently. The shell structure of the harmonic analyzer special for the active power filter has a skillful concept, a reasonable layout, a simple structure, a smaller size, a reliable performance, flexible operability and a very remarkably practicable effect.
Description
Technical field
The utility model relates to a kind of apparatus, the shell mechanism of the special-purpose harmonic analysis instrument of particularly a kind of Active Power Filter-APF.
Background technology
At present, the harmonic analysis instrument complex structure that active filter is commonly used, ubiquitous frame mode is that the polylith circuit board is connected with shell, adopt the mode of putting up a bridge to link to each other with external signal with lead-in wire, lead-in wire too much can reduce the stability and the accuracy of harmonic analysis instrument greatly, and the shell mechanism of bridging also can shorten the serviceable life of harmonic analysis instrument.And multiple functional harmonic analysis instrument generally mostly is independent use, separates with cabinet.
Therefore, providing a kind of shell mechanism of multiple functional, simple in structure, the special-purpose harmonic analysis instrument of application is easy, dirigibility is high Active Power Filter-APF, is one of these those skilled in the art problem that should address.
The utility model content
The purpose of this utility model is to overcome above-mentioned weak point, provides a kind of multiple functional, simple in structure, the shell mechanism of the special-purpose harmonic analysis instrument of easy-to-install Active Power Filter-APF.
The technical scheme that the utility model adopted is for achieving the above object: the shell mechanism of the special-purpose harmonic analysis instrument of a kind of Active Power Filter-APF, this shell mechanism is installed on the Active Power Filter-APF casing, it is characterized in that this shell mechanism comprises shell, power supply circuit board, display circuit board and external terminal; Described shell divides forward and backward two parts, and adopts screw fastening; Described shell adopts plastic material, and front and back are interval with display circuit board and power supply circuit board in it; Described external terminal is drawn in shell rear portion one side.
The beneficial effects of the utility model are: this shell mechanism makes full use of the experience of practical application, is skillfully constructed, and is simple in structure, rationally distributed, dependable performance, and reduced volume reduces and uses material, effectively reduces the manufacturing cost of this shell mechanism, the practical function highly significant.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is a shell rear structure synoptic diagram of the present utility model;
Fig. 3 is a shell perspective view of the present utility model.
Among the figure: 1 shell, 2 power supply circuit boards, 3 display circuit boards, 4 external terminals, 5 screws, 6 action buttons.
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment, details are as follows to embodiment, structure, feature that foundation the utility model provides:
As shown in Figure 1-Figure 3, the shell mechanism of the special-purpose harmonic analysis instrument of a kind of Active Power Filter-APF, this shell mechanism is installed on the Active Power Filter-APF casing, comprises shell 1, power supply circuit board 2, display circuit board 3 and external terminal 4; 1 fen forward and backward two parts of described shell, the corresponding screw 5 that adopts of two parts is fastening; Described shell 1 adopts plastic material, and front and back are interval with display circuit board 2 and power supply circuit board 3 in it, and effectively guarantee electric clearance; Described external terminal 4 is drawn in shell 1 rear portion one side, makes things convenient for the connection of signal wire.
Action button 6 is arranged at the below of shell 1 front end face display screen.
Principle of work:
Fig. 1 illustrates the position of display circuit board 3 display screens, and display screen is installed between two parties, and display area is bigger, and graphic presentation is clearer complete; Five action buttons 6 of harmonic analysis instrument also are shown among the figure, have different functions according to the difference of display operation step.
Fig. 2 illustrates the fixed position of internal circuit board, divides forward and backward two-layerly, and promptly power supply circuit board 2 places display circuit board 3 back, four jiaos of location and installation at interval.
Fig. 3 illustrates the position of external terminal 4, under the prerequisite that guarantees the signal input, makes its device external structure more succinct attractive in appearance.
Above-mentionedly be described in detail with reference to the shell mechanism of example to the special-purpose harmonic analysis instrument of this Active Power Filter-APF; be illustrative rather than determinate; therefore in the variation and the modification that do not break away under the utility model general plotting, should belong within the protection domain of the present utility model.
Claims (1)
1. the shell mechanism of the special-purpose harmonic analysis instrument of an Active Power Filter-APF, this shell mechanism is installed on the Active Power Filter-APF casing, it is characterized in that this shell mechanism comprises shell, power supply circuit board, display circuit board and external terminal; Described shell divides forward and backward two parts, and adopts screw fastening; Described shell adopts plastic material, and front and back are interval with display circuit board and power supply circuit board in it; Described external terminal is drawn in shell rear portion one side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206632958U CN201917591U (en) | 2010-12-16 | 2010-12-16 | Shell structure of harmonic analyzer special for active power filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206632958U CN201917591U (en) | 2010-12-16 | 2010-12-16 | Shell structure of harmonic analyzer special for active power filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201917591U true CN201917591U (en) | 2011-08-03 |
Family
ID=44417385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206632958U Expired - Fee Related CN201917591U (en) | 2010-12-16 | 2010-12-16 | Shell structure of harmonic analyzer special for active power filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201917591U (en) |
-
2010
- 2010-12-16 CN CN2010206632958U patent/CN201917591U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: TIANJIN NOLE ELECTRICITY CO., LTD. Free format text: FORMER NAME: TIANJIN NUOERHADUN ELECTRIC CO., LTD. Owner name: TIANJIN NUOERHADUN ELECTRIC CO., LTD. Free format text: FORMER NAME: TIANJIN NOLE ELECTRICITY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 300000 Tianjin city Xiqing District Jintai Road No. 6 (Dasi) Patentee after: TIANJIN NOLE ELECTRIC Co.,Ltd. Address before: 300000 Tianjin city Xiqing District Jintai Road No. 6 (Dasi) Patentee before: Tianjin Knoll Hatton Electric Co.,Ltd. |
|
| CP03 | Change of name, title or address |
Address after: 300000 Tianjin city Xiqing District Jintai Road No. 6 (Dasi) Patentee after: Tianjin Knoll Hatton Electric Co.,Ltd. Address before: 300381 Tianjin city Xiqing District of Xiqing Economic Development Zone Industrial Park Ze Road No. 20 Hung Temple Patentee before: Tianjin Nuoerhatun Electric Manufacturing Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110803 Termination date: 20141216 |
|
| EXPY | Termination of patent right or utility model |