CN214703826U - Electric energy quality analyzer based on FFT and wavelet transform - Google Patents
Electric energy quality analyzer based on FFT and wavelet transform Download PDFInfo
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- CN214703826U CN214703826U CN202120617097.6U CN202120617097U CN214703826U CN 214703826 U CN214703826 U CN 214703826U CN 202120617097 U CN202120617097 U CN 202120617097U CN 214703826 U CN214703826 U CN 214703826U
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Abstract
The utility model relates to a power quality analyzer field just discloses a power quality analyzer based on FFT and wavelet transform, including the analysis appearance body, built-in FFT procedure and wavelet transform algorithm in the inside of analysis appearance body, the receiver is installed in the front of analysis appearance body, the limiting plate is all installed, two to the left and right sides wall of receiver sliding connection has the apron between the limiting plate. This electric energy quality analysis appearance based on FFT and wavelet transform, the position of apron is more stable, can carry out effective shutoff to the receiver, when not using, connecting wire is by stable accomodating in the receiver, can guarantee the wholeness of whole device, avoid the article in the receiver to remove the in-process roll-off, it is more convenient when making whole device carry and remove, it grips the use analysis appearance body that the board can be more convenient to grip, avoid gripping inconvenience because the analysis appearance body is great.
Description
Technical Field
The utility model relates to an electric energy quality analyzer field specifically is an electric energy quality analyzer based on FFT and wavelet transform.
Background
The power quality refers to the quality of power in a power system, ideal power should be a perfectly symmetrical sine wave, and some factors may cause the waveform to deviate from the symmetrical sine wave, thereby generating the power quality problem.
In order to analyze and detect the power quality, a power quality analyzer is needed to analyze the power quality, but the conventional handheld power quality analyzer is inconvenient to carry and hold when in use, so that the handheld power quality analyzer is troublesome to use. Therefore, the power quality analyzer based on FFT and wavelet transformation is designed.
SUMMERY OF THE UTILITY MODEL
The utility model provides a not enough to prior art, the utility model provides an electric energy quality analyzer based on FFT and wavelet transform has solved present hand-held type electric energy quality analyzer commonly used and when using, carries and grips comparatively inconveniently, makes its use comparatively trouble problem.
In order to achieve the above purpose, the utility model adopts the technical scheme that:
electric energy quality analysis appearance based on FFT and wavelet transform, including the analysis appearance body, built-in FFT procedure and wavelet transform algorithm of inside of analysis appearance body, the receiver is installed in the front of analysis appearance body, the limiting plate is all installed to the left and right sides wall of receiver, two sliding connection has the apron between the limiting plate.
Two the guide way has all been seted up to the opposite face of limiting plate, fixed pipe is all installed at the top of apron left and right sides wall, the inside sliding connection of fixed pipe has the movable plate, the one side fixedly connected with coupling spring that the movable plate is close to the apron, coupling spring keeps away from the one end of movable plate and the inner wall fixed connection that fixed pipe is close to apron one end, the locating hole that corresponds with fixed pipe is seted up at the top of guide way, install the locating lever of pegging graft with the locating hole on the movable plate.
The middle part of guide way is seted up the spacing hole that corresponds with the locating lever, the board of gripping is installed to the bottom of apron, the inside of receiver is provided with connecting wire.
Furthermore, the left side wall of analysis appearance body installs and pulls the area, the mid-mounting that pulls the area has the sponge cover.
Furthermore, the limiting plates are mounted at the bottoms of the left side wall and the right side wall of the storage box, and the shape of each limiting plate corresponds to that of the cover plate and the holding plate and can form a whole panel shape.
Furthermore, the middle parts of the left side wall and the right side wall of the cover plate are respectively provided with a guide plate which is in sliding connection with the guide grooves on the two sides.
Furthermore, the fixed pipe is internally provided with a limiting block, and the limiting block and one surface of the movable plate, which is far away from the connecting spring, are abutted.
Furthermore, the two ends of the connecting wire are both provided with connectors.
The utility model has the advantages that:
1. the utility model discloses a, the position of apron is more stable, can carry out effective shutoff to the receiver, and when not using, connecting wire is by stable accomodating in the receiver, can guarantee the wholeness of whole device, avoids the article in the receiver to remove the in-process roll-off for it is more convenient when whole device carries and removes.
2. The utility model discloses a, after the apron removed certain degree, connecting spring can push away movable plate and locating lever and remove, and the locating lever can insert spacing downthehole for the apron position is fixed, then grips the usage analysis appearance body that the board can be more convenient that grips, avoids gripping inconveniently because the analysis appearance body is great.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic view of the internal structure of the storage box of the present invention;
FIG. 3 is an enlarged view of A in FIG. 1;
fig. 4 is a rear view of the present invention.
In the figure: 1. an analyzer body; 2. a storage box; 3. a limiting plate; 4. a cover plate; 5. a guide groove; 6. a fixed tube; 7. moving the plate; 8. a connecting spring; 9. positioning holes; 10. positioning a rod; 11. a limiting hole; 12. a grip plate; 13. connecting a lead; 14. pulling the belt; 15. a guide plate; 16. a limiting plate; 17. a sponge sleeve.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to FIGS. 1-4: an electric energy quality analyzer based on FFT and wavelet transform comprises an analyzer body 1, an FFT program and a wavelet transform algorithm are arranged in the analyzer body 1, a storage box 2 is arranged on the front surface of the analyzer body 1, limiting plates 3 are arranged on the left side wall and the right side wall of the storage box 2, a cover plate 4 is connected between the two limiting plates 3 in a sliding mode, the analyzer body 1 is used as a common analyzer, the principle of the analyzer body is known in the prior art, repeated description is omitted, the FFT program and the wavelet transform algorithm arranged in the analyzer body 1 are matched with corresponding implementation components, when the analyzer body 1 is used, the FFT program and the wavelet transform algorithm are applied to electric energy quality analysis, the concept of localization of short-time Fourier transform is integrated, the defects that the size of a window does not change along with frequency and the like are overcome, and a time-frequency window which changes along with frequency can be provided, carry out signal time-frequency analysis and processing for the analysis of power quality is more accurate and high-efficient, and receiver 2 can be deposited the subassembly that collocation analysis appearance body 1 used, and apron 4 can carry out the shutoff to the open position of analysis appearance body 1, makes the use of analysis appearance body 1 more convenient with carry.
The opposite surfaces of the two limiting plates 3 are respectively provided with a guide groove 5, the tops of the left side wall and the right side wall of the cover plate 4 are respectively provided with a fixed tube 6, the inside of the fixed tube 6 is connected with a movable plate 7 in a sliding way, one surface of the movable plate 7 close to the cover plate 4 is fixedly connected with a connecting spring 8, one end of the connecting spring 8 far away from the movable plate 7 is fixedly connected with the inner wall of one end of the fixed tube 6 close to the cover plate 4, the top of the guide groove 5 is provided with a positioning hole 9 corresponding to the fixed tube 6, the movable plate 7 is provided with a positioning rod 10 inserted into the positioning hole 9, the inside of the fixed tube 6 is provided with a limiting block, the limiting block is abutted against one surface of the movable plate 7 far away from the connecting spring 8, the middle parts of the left side wall and the right side wall of the cover plate 4 are respectively provided with a guide plate 15 connected with the guide grooves 5 at the two sides in a sliding way, and the positioning rod 10 inserted into the positioning hole 9 can limit the positions of the movable plate 7 and the fixed tube 6, can restrict the position of apron 4 like this, can restrict the position of apron 4 like this, make the position of apron 4 more stable, can effectively block receiver 2, avoid the article in receiver 2 at removal in-process roll-off, it is more convenient when making whole device carry and remove, and extrude two locating levers 10, two locating levers 10 can push away movable plate 7 and slide in fixed pipe 6, at this moment, connecting spring 8 is compressed, and thus, can push out locating lever 10 from locating hole 9, and then can pull down apron 4.
The middle part of the guide groove 5 is provided with a limiting hole 11 corresponding to the positioning rod 10, the bottom of the cover plate 4 is provided with a holding plate 12, the inside of the storage box 2 is provided with a connecting lead 13, the bottoms of the left side wall and the right side wall of the storage box 2 are both provided with limiting plates 16, the shapes of the limiting plates 16 correspond to the shapes of the cover plate 4 and the holding plate 12 and can form a whole panel shape, so that the opening position of the storage box 2 can be effectively blocked by the cover plate 4 and the holding plate 12, thus, the connecting lead 13 can not slide out, the guide plate 15 can be driven to slide in the guide groove 5 when the cover plate 4 moves, the cover plate 4 can move more conveniently and stably, after the cover plate 4 moves to a certain degree, the connecting spring 8 can push the moving plate 7 and the positioning rod 10 to move, the positioning rod 10 can be inserted into the limiting hole 11, so that the position of the cover plate 4 is fixed, then the holding plate 12 can more conveniently use the analyzer body 1, avoid holding inconveniently because the analysis appearance body 1 is great, the connector is all installed at connecting wire 13's both ends, the setting of connector, can be so that connecting wire 13 and analysis appearance body 1 with wait to examine the connection of circuit more convenient, when not using, connecting wire 13 is by stable accomodating in receiver 2, can guarantee the wholeness of whole device, it is more convenient to carry.
As shown in fig. 4, the pulling belt 14 is installed on the left side wall of the analyzer body 1, the sponge sleeve 17 is installed in the middle of the pulling belt 14, and the sponge sleeve 17 can be held to carry the analyzer body 1 by the pulling belt 14 and the sponge sleeve 17, so that the analyzer body 1 is more convenient to carry.
To sum up, the utility model discloses when using, extrude two locating levers 10, two locating levers 10 can push away movable plate 7 and slide in fixed pipe 6, at this moment, coupling spring 8 is compressed, thus, can release locating lever 10 from locating hole 9 in, and then can pull down apron 4, then after locating lever 10 inserted spacing downthehole 11, can take out the connecting wire 13 in the receiver 2, connect analysis appearance body 1 through connecting wire 13 and wait to detect the circuit, at this moment, analysis appearance body 1 can carry out the analysis to the electric energy quality.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (7)
1. Electric energy quality analysis appearance based on FFT and wavelet transform, including analysis appearance body (1), its characterized in that: an FFT program and a wavelet transform algorithm are built in the analyzer body (1), a storage box (2) is installed on the front face of the analyzer body (1), limiting plates (3) are installed on the left side wall and the right side wall of the storage box (2), and a cover plate (4) is connected between the two limiting plates (3) in a sliding mode;
the opposite surfaces of the two limiting plates (3) are respectively provided with a guide groove (5), the tops of the left side wall and the right side wall of the cover plate (4) are respectively provided with a fixed pipe (6), the inside of each fixed pipe (6) is connected with a movable plate (7) in a sliding mode, one surface, close to the cover plate (4), of each movable plate (7) is fixedly connected with a connecting spring (8), one end, far away from the movable plate (7), of each connecting spring (8) is fixedly connected with the inner wall, close to the cover plate (4), of each fixed pipe (6), the top of each guide groove (5) is provided with a positioning hole (9) corresponding to the corresponding fixed pipe (6), and each movable plate (7) is provided with a positioning rod (10) inserted into the positioning hole (9);
the middle part of guide way (5) is seted up with spacing hole (11) that locating lever (10) correspond, grip plate (12) are installed to the bottom of apron (4), the inside of receiver (2) is provided with connecting wire (13).
2. The FFT and wavelet transform based power quality analyzer of claim 1, wherein: a pulling belt (14) is installed on the left side wall of the analyzer body (1).
3. The FFT and wavelet transform based power quality analyzer of claim 2, wherein: the middle part of the pulling belt (14) is provided with a sponge sleeve (17).
4. The FFT and wavelet transform-based power quality analyzer of any one of claims 1 to 3, wherein: the bottom of the left side wall and the right side wall of the storage box (2) is provided with a limiting plate (16), and the shape of the limiting plate (16) corresponds to the shape of the cover plate (4) and the shape of the holding plate (12) and can form a whole panel shape.
5. The FFT and wavelet transform-based power quality analyzer of claim 1, 2 or 3, wherein: the middle parts of the left side wall and the right side wall of the cover plate (4) are respectively provided with a guide plate (15) which is in sliding connection with the guide grooves (5) on the two sides.
6. The FFT and wavelet transform based power quality analyzer of claim 5, wherein: the inside of the fixed pipe (6) is provided with a limiting block, and the limiting block is propped against one surface of the moving plate (7) far away from the connecting spring (8).
7. The FFT and wavelet transform-based power quality analyzer of claim 1 or 2 or 3 or 6, wherein: and connectors are arranged at two ends of the connecting wire (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120617097.6U CN214703826U (en) | 2021-03-26 | 2021-03-26 | Electric energy quality analyzer based on FFT and wavelet transform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120617097.6U CN214703826U (en) | 2021-03-26 | 2021-03-26 | Electric energy quality analyzer based on FFT and wavelet transform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214703826U true CN214703826U (en) | 2021-11-12 |
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ID=78527307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120617097.6U Active CN214703826U (en) | 2021-03-26 | 2021-03-26 | Electric energy quality analyzer based on FFT and wavelet transform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214703826U (en) |
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2021
- 2021-03-26 CN CN202120617097.6U patent/CN214703826U/en active Active
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