CN220853624U - Converter for enhancing signal anti-interference of encoder - Google Patents

Abstract

The utility model relates to the technical field of wind power generation, in particular to a converter for enhancing signal anti-interference of an encoder, which comprises a shell with an opening at the upper end and a shell cover for sealing the shell, wherein a circuit board is fixedly arranged in the shell, a P1 terminal seat, a P2 terminal seat, a P3 terminal seat, a filter, a differential driving chip and three groups of optical couplers are arranged on the circuit board, the P1 terminal seat is respectively and electrically connected with the three groups of optical couplers, the three groups of optical couplers are electrically connected with the filter, the filter is electrically connected with the differential driving chip, the differential driving chip and the P3 terminal seat are electrically connected with the P2 terminal seat, a first socket is electrically connected with the P1 terminal seat, a second socket is electrically connected with the P2 terminal seat, and a third socket is electrically connected with the P3 terminal seat. The beneficial effects of the utility model are as follows: the transmission capacity of the encoder is improved, long-distance transmission can be realized, the anti-interference capacity of the encoder in a severe and complex electromagnetic environment is improved, the cost is saved, the running stability of the encoder is enhanced, and the failure rate is reduced.

Description

Converter for enhancing signal anti-interference of encoder

Technical Field

The utility model relates to the technical field of wind power generation, in particular to a converter for enhancing signal anti-interference of an encoder.

Background

At present, with the development of wind turbine type iteration, the height of a wind turbine tower is higher and higher, the original cabin placement of a converter is changed into the placement of the bottom of the tower, and the larger the distance of the converter receiving signals of a generator encoder is.

At present, the signal transmission of the encoder is directly from the output end of the encoder to the receiving end, but when the encoder is transmitted in a long distance, the output driving capability of part of the encoder is insufficient, long-line reflection interference or external electromagnetic interference can be coupled into the signal, so that the receiving end is in error reading, the operation is unstable, the encoder with higher performance is high in price, and the economical and practical applicability is low.

Disclosure of utility model

The technical problem to be solved by the utility model is to provide the converter for enhancing the signal anti-interference of the encoder, which has a simple structure, can improve the transmission capacity of the encoder, enhance the running stability of the encoder and save the cost.

The technical scheme for solving the technical problems is as follows: the utility model provides a converter for reinforcing encoder signal anti-interference, includes upper end open-ended casing and is used for the closing cap the cap of casing, the casing internal fixation is equipped with the circuit board, be equipped with P1 terminal seat, P2 terminal seat, P3 terminal seat, wave filter, differential drive chip and three group's opto-couplers on the circuit board, P1 terminal seat respectively with three groups opto-couplers electricity is connected, three groups opto-couplers all with the wave filter electricity is connected, the wave filter with differential drive chip electricity is connected, differential drive chip P3 terminal seat all with P2 terminal seat electricity is connected, be equipped with first socket, second socket and third socket on the lateral wall of casing, first socket with P1 terminal seat electricity is connected, the second socket with P2 terminal seat electricity is connected, the third socket with P3 terminal seat electricity is connected.

The beneficial effects of the utility model are as follows: the transmission capacity of the encoder is improved, long-distance transmission can be realized, the anti-interference capacity of the encoder in a severe and complex electromagnetic environment is improved, the high-performance encoder with high price does not need to be selected, the cost is saved, the running stability of the encoder is enhanced, the failure rate is reduced, and the encoder with general output is converted into push-pull output with stronger anti-interference capacity.

On the basis of the technical scheme, the utility model can be improved as follows.

Further, be equipped with P4 terminal seat on the circuit board, install the pilot lamp that is used for instructing whether to connect the power on the lateral wall of casing, the pilot lamp with P4 terminal seat electricity is connected.

The beneficial effects of adopting the further scheme are as follows: through setting up the pilot lamp, can show the circular telegram state, the user of being convenient for confirms whether the power is connected.

Further, a plurality of positioning copper columns are arranged at the inner bottom end of the shell, positioning mounting holes which are arranged in one-to-one correspondence with the positioning copper columns are formed in the circuit board, and the positioning copper columns are inserted into the positioning mounting holes in one-to-one correspondence.

The beneficial effects of adopting the further scheme are as follows: the circuit board is positioned and fixed through the positioning copper columns, so that the stability of the circuit board installation is ensured.

Further, three mounting hole sites are formed in the side wall of the shell, and the first socket, the second socket and the third socket are detachably and hermetically mounted in the three mounting hole sites respectively.

The beneficial effects of adopting the further scheme are as follows: the first socket, the second socket and the third socket are detachably mounted, so that the assembly, the maintenance and the replacement are convenient.

Further, the first socket, the second socket and the third socket are detachably mounted on the side wall of the shell through screws.

The beneficial effects of adopting the further scheme are as follows: the installation and the disassembly are convenient.

Further, the first socket, the second socket and the third socket are waterproof sockets.

The beneficial effects of adopting the further scheme are as follows: adopt waterproof socket, realize waterproof, further improve security and stability in the use.

Further, a sealing ring is arranged between the shell and the shell cover.

The beneficial effects of adopting the further scheme are as follows: and a sealing ring is arranged between the shell and the shell cover, so that the tightness between the shell and the shell cover is improved.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic diagram of a circuit connection according to the present utility model;

in the drawings, the list of components represented by the various numbers is as follows:

1. A housing; 2. a cover; 3. an indicator light; 4. a third socket; 5. a first socket; 6. a second socket; 7. a circuit board; 8. copper columns; 9. a P4 terminal block; 10. p1 terminal base; 11. a P2 terminal block; 12. a P3 terminal block; 13. a filter; 14. a differential driving chip; 15. an optical coupler.

Detailed Description

The principles and features of the present utility model are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the utility model and are not to be construed as limiting the scope of the utility model.

As shown in fig. 1 and 2, the embodiment of the utility model includes a housing 1 with an opening at an upper end and a housing cover 2 for sealing the housing 1, a sealing ring is disposed between the housing 1 and the housing cover 2 to improve tightness between the housing 1 and the housing cover 2, a circuit board 7 is fixedly disposed in the housing 1, a P1 terminal seat 10 seat, a P2 terminal seat 11 seat, a P3 terminal seat 12 seat, a filter 13, a differential driving chip 14, and three groups of optical couplers 15 are disposed on the circuit board 7, the P1 terminal seat 10 seat is electrically connected with the three groups of optical couplers 15 respectively, the three groups of optical couplers 15 are electrically connected with the filter 13, the filter 13 is electrically connected with the differential driving chip 14, the P3 terminal seat 12 seat is electrically connected with the P2 terminal seat 11, a first socket 5, a second socket 6, and a third socket 4 are disposed on a side wall of the housing 1, the first socket 5 is electrically connected with the P1 terminal seat 10, the second socket 6 is electrically connected with the third socket 4, and the third socket 4 is electrically connected with the P2 terminal seat 11. The electrical connection in this embodiment may be directly or indirectly by a power cord, for example, the third socket 4 is used to connect an external power source, and the third socket 4 is electrically connected to the P3 terminal block 12 to provide power to the whole circuit board 7, so that the element on the circuit board 7 is also indirectly electrically connected to the P3 terminal block 12, and similarly, in this embodiment, the P3 terminal block 12 is electrically connected to the P2 terminal block 11, or may be indirectly electrically connected, for example, the P3 terminal block 12 is electrically connected to another element on the circuit board 7, and another element is electrically connected to the P3 terminal block 12, so that the electrical connection between the P3 terminal block 12 and the P2 terminal block 11 is also realized.

In the embodiment of the utility model, the P4 terminal block 9 is provided on the circuit board 7, the indicator lamp 3 for indicating whether to connect with the power supply is mounted on the side wall of the housing 1, the indicator lamp 3 is electrically connected with the P4 terminal block 9, and the power-on state can be displayed by setting the indicator lamp 3, so that a user can confirm whether to connect with the power supply conveniently.

The inner bottom of casing 1 is equipped with a plurality of location copper posts 8, be equipped with on the circuit board 7 with location mounting hole that location copper post 8 one-to-one set up, location copper post 8 one-to-one inserts the location mounting hole, fix a position circuit board 7 through location copper post 8, ensure the stability of circuit board 7 installation.

In order to be convenient for the installation of three sockets, be equipped with three installation hole sites on the lateral wall of casing 1, first socket 5 second socket 6 and third socket 4 can dismantle sealed the installation respectively through the screw in three installation hole sites, the installation is dismantled conveniently, convenient equipment and maintenance are changed.

In the embodiment of the present utility model, the first socket 5, the second socket 6 and the third socket 4 are waterproof sockets, and waterproof sockets are adopted to realize waterproofing, so that safety and stability in the use process are further improved.

In one embodiment of the utility model, the device shell is of a 110.5 mm-36 mm cuboid structure and consists of a shell 1 and a shell cover 2, wherein the shell 1 and the shell cover 2 are fixedly connected in a sealing manner through M3 screws on the periphery, a 85 mm-54 mm circuit board 7 is arranged in the shell, and the circuit board 7 is fixedly connected with the bottom of the shell 1 through 4M 3 copper columns 8. The 2-core M23 waterproof socket (third socket 4) with 26mm of the front side intermediate device 26mm is fixed with the shell 1 through 4M 2.5 pan head screws, and an end wire is connected to the P3 terminal seat 12 on the circuit board 7 through an end wire plug. The left side of the front side of the device is provided with a round hole phi 2.6mm for installing a round indicator lamp 3 phi 2.5mm, and an end wire is connected to the P4 terminal seat 9 on the circuit board 7 through an end wire plug. Two 26mm 8 core M23 waterproof sockets are installed behind the device, the first socket 5 on the left side and the second socket 6 on the right side are respectively fixed with the shell 1 through 4M 2.5 pan head screws, an end wire is connected inside the left side M23 waterproof socket and connected to the P1 terminal block 10 on the circuit board 7 through an end wire plug, an end wire is connected inside the right side M23 waterproof socket and connected to the P1 terminal block 10 on the circuit board 7 through an end wire plug, and after all the terminal blocks are connected, dispensing is fixed.

Working principle: when the device operates, a third socket 4 at the front side of the device is connected with a power supply, an indicator lamp 3 lights a green light after the power supply is connected, 8 paths of pulse signals (A+, A-, B+, Z+, Z-, positive power supply and negative power supply) of an encoder are input into the device through a first socket 5 at the rear left side of the device, three groups of differential signals A+ and A-, B+ and B-, Z+ and Z-are received in a differential mode through three groups of optical couplers 15 and are converted into three paths of pulse signals A, B, Z, the three paths of signals are input into a high-power differential driving chip 14 after being filtered, 6 paths of differential signals are output in a push-pull mode, 8 paths of signals are input into a second socket 6 together with positive and negative power supplies input by the first socket 5, and all power sources in the whole device are grounded in a common mode.

Compared with the prior art, the application has the following beneficial effects:

1. The transmission capacity of the encoder is improved, and long-distance transmission can be realized.

2. The anti-interference capability of the encoder in a severe and complex electromagnetic environment is improved.

3. High-performance encoders with high price are not needed to be selected, and cost is saved.

4. The running stability of the encoder is enhanced, and the failure rate is reduced.

5. For a general output encoder, the push-pull output with stronger anti-interference capability is converted.

In the description of the present utility model, it should be understood that the terms "center", "length", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "inner", "outer", "peripheral side", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the system or element in question must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.

Claims (7)

1. The utility model provides a converter for reinforcing encoder signal anti-interference, its characterized in that, includes upper end open-ended casing (1) and is used for the closing cap casing (2) of casing (1), casing (1) internal fixation is equipped with circuit board (7), be equipped with P1 terminal seat (10), P2 terminal seat (11), P3 terminal seat (12), wave filter (13), differential drive chip (14) and three optical coupler (15) of group on circuit board (7), P1 terminal seat (10) respectively with three groups optical coupler (15) electricity are connected, three groups optical coupler (15) all with wave filter (13) electricity is connected, wave filter (13) with differential drive chip (14) electricity is connected, differential drive chip (14) P3 terminal seat (12) all with P2 terminal seat (11) electricity is connected, be equipped with first socket (5), second socket (6) and third socket (4) on the lateral wall of casing (1), first socket (6) and third socket (4) electricity are connected with P1 terminal (4) electricity is connected with P2 terminal seat (11).

2. The converter for enhancing signal immunity of an encoder according to claim 1, wherein a P4 terminal block (9) is provided on the circuit board (7), an indicator lamp (3) for indicating whether a power supply is connected is mounted on a side wall of the housing (1), and the indicator lamp (3) is electrically connected with the P4 terminal block (9).

3. The converter for enhancing signal immunity of an encoder according to claim 1, wherein a plurality of positioning copper columns (8) are arranged at the inner bottom end of the housing (1), positioning mounting holes which are arranged in one-to-one correspondence with the positioning copper columns (8) are arranged on the circuit board (7), and the positioning copper columns (8) are inserted into the positioning mounting holes in one-to-one correspondence.

4. A transducer for enhancing signal immunity of an encoder according to claim 1, wherein three mounting holes are provided in a side wall of the housing (1), and the first socket (5), the second socket (6) and the third socket (4) are detachably and sealingly mounted in the three mounting holes, respectively.

5. A transducer for enhancing the immunity of encoder signals according to claim 4, characterized in that the first socket (5), the second socket (6) and the third socket (4) are all detachably mounted on the side wall of the housing (1) by screws.

6. A transducer for enhancing the immunity of an encoder signal according to any one of claims 1 to 5, wherein the first socket (5), the second socket (6) and the third socket (4) are waterproof sockets.

7. A transducer for enhancing the immunity of encoder signals according to any one of claims 1 to 5, characterized in that a sealing ring is provided between the housing (1) and the cover (2).