CN210269899U - Flexible double-channel voltage type speed sensor - Google Patents
Flexible double-channel voltage type speed sensor Download PDFInfo
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- CN210269899U CN210269899U CN201921351170.9U CN201921351170U CN210269899U CN 210269899 U CN210269899 U CN 210269899U CN 201921351170 U CN201921351170 U CN 201921351170U CN 210269899 U CN210269899 U CN 210269899U
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Abstract
The utility model discloses a flexible binary channels voltage type speedtransmitter, which comprises an outer shell body, the center support, hall chip, magnet, the circuit board, shielding pipe and cable, the position that is close to its one terminal surface in the shell body is located to the center support, the circuit board includes square circuit board and circular circuit board, square circuit board rear end connecting cable, square circuit board crosses center support location at the shell center, circular circuit board is located in the terminal surface of center support, evenly be equipped with two hall chip around its center on the circular circuit board, square circuit board passes through the soft arranging wire pressfitting with circular circuit board and is connected, the inside position of circular circuit board is equipped with magnet in the center support, shielding pipe cover is established square circuit board and is located the center support in the shell body. The flexible double-channel voltage type speed sensor has high automation degree in the production process, and the production efficiency is improved; the overall reliability of the product is good, the detection effect is optimal, and errors of detection signals of the speed sensor are effectively avoided.
Description
Technical Field
The utility model relates to a speedtransmitter that is used for high-speed railway subway locomotive braking, pulls, signal system specifically is a flexible binary channels voltage type speedtransmitter.
Background
The conventional two-channel voltage type speed sensor adopts a Hall chip and PCA (pure hardboard) combination mode of manual welding, pins of the Hall chip need to be bent and inserted into the PCA, the pins of the Hall chip are manually welded on the PCA, and the phenomena of insufficient welding, continuous welding, burning-out of the Hall chip and PCA components and the like easily occur in the welding process, so that the performance and the function of the sensor are affected.
When the conventional PCA uses two Hall chips, the two Hall chips are respectively installed on the front and back surfaces of the PCA (when the two Hall chips detect the rotation of the gear, the two Hall chips cannot be uniformly distributed at the central position of the gear, and the detection effect of the speed sensor is influenced). The fixing mode adopts instant adhesive for fixing, the two Hall chips are internally provided with the adhesive, mutual repulsion phenomenon can occur during installation, the contact surfaces of the Hall chips and the PCA are smaller, and the use of the speed sensor can be influenced if the Hall chips are loosened, the top surface is uneven and the like.
When the Hall chip is mounted on the conventional PCA, the Hall chip is fixed on the PCA by using instant adhesive. Hall chip and PCA slope easily in the installation, can lead to appearing the gap between Hall chip top surface and the inside contact surface of shell body after the slope of Hall chip, and the PCA slope can lead to PCA and shell body inboard to appear bumping the wall phenomenon, all can exert an influence to speedtransmitter detected signal. After the Hall chip and the PCA are assembled, the Hall chip and the PCA cannot be completely centered when being installed inside the shell, and errors can be caused in detection signals of the speed sensor.
Therefore, how to solve the above problems is a problem to be solved urgently.
Disclosure of Invention
Aiming at the technical problems, the utility model provides a flexible double-channel voltage type speed sensor, which has high automation degree in the production process and improves the production efficiency; the overall reliability of the product is good, the detection effect is optimal, and errors of detection signals of the speed sensor are effectively avoided.
In order to achieve the above purpose, the technical scheme of the utility model is that:
the utility model provides a flexible binary channels voltage type speedtransmitter, which comprises an outer shell body, the center support, hall chip, magnet, the circuit board, shielding pipe and cable, the center support is located the position that is close to its one end face in the shell body, the circuit board includes square circuit board and circular circuit board, square circuit board rear end connecting cable, square circuit board crosses center support location at the shell center, circular circuit board is located in the terminal surface of center support, evenly be equipped with two hall chips around its center on the circular circuit board, square circuit board passes through soft arranging wire pressfitting with circular circuit board and is connected, the inward position of circular circuit board is equipped with magnet in the center support, shielding pipe box establishes square circuit board and is located on the center support in the shell body.
The utility model adopts the above structure after, inside hall element arranged the shell body between two parties through central support, hall element was inductive element, realized surveying original signal's purpose. The circuit board is connected with the Hall element, realizes the purpose of supplying power to the Hall element and processing and outputting the original signal of the Hall element, and the cable penetrates through the locking sealing element structure at the rear end of the outer shell to be connected with the circuit board and transmits and outputs the signal to an external application system. The circuit board is established to the shielding pipe cover, strengthens sensor anti electromagnetic interference performance through the shielding pipe.
The square circuit board and the circular circuit board are connected through the flexible flat cable in a pressing mode, the Hall chips are respectively installed on the left side and the right side of the front end circular circuit board and are evenly distributed around the center of the circular circuit board, and therefore the two Hall chips are correspondingly and evenly distributed in the center of the gear when the speed measuring gear rotates, and the best detection effect of the sensor is guaranteed. The flexible flat cable and the two circuit boards adopt an integrated pressing process, are not in a traditional plug-in type, and improve reliability.
Adopt the center support to fix placed in the middle when installing circular circuit board in above-mentioned structure, circular circuit board is installed in center support head, and two hall chip top surfaces and center support top surface parallel and level can not appear hall chip top surface uneven phenomenon. The square circuit board passes through the center support to enable the square circuit board to be located in the center of the inner portion of the outer shell, the center support is integrally matched with the inner portion of the outer shell completely, seamless installation is achieved, the square circuit board is completely vertically centered in the outer shell, and the wall collision condition cannot occur.
And furthermore, all electronic components on the circuit board are assembled by adopting SMT patches. The SMT paster is adopted completely, due to the fact that the overall dimension of components is standardized and serialized and the consistency of welding conditions is achieved, meanwhile, the automation degree of SMT paster processing is high, the risk of component failure caused by a manual welding process is avoided, and the overall reliability of products is improved. Compared with manual welding, the SMT paster has higher efficiency, so that the time required by the whole production process is shortened, and the production efficiency is improved.
The tail of the central support is further provided with an embedding port for installing a square circuit board, so that the square circuit board is positioned in the center of the inner part of the outer shell. The embedding opening is convenient for the installation and the positioning of the square circuit board.
The shielding pipe is further made of copper metal, and hard silicon resin is sprayed on the outer wall surface of the shielding pipe. The outer wall surface is sprayed with silicone in order to electrically isolate the shielding tube from the outer housing.
Drawings
FIG. 1 is a block diagram of the present invention;
FIG. 2 is an enlarged view of the internal structure of the present invention;
FIG. 3 is a left side view of FIG. 2;
FIG. 4 is a top view of FIG. 2;
FIG. 5 is a front view of the center bracket of FIG. 2;
fig. 6 is a left side view of fig. 5.
In the figure: the circuit board comprises an outer shell 1, a central support 2, an embedding opening 21, a circuit board 3, a square circuit board 31, a flexible flat cable 32, a round circuit board 33, a shielding tube 4, a cable 5, a magnet 6 and a Hall chip 7.
Detailed Description
The invention will be described in further detail below with reference to embodiments shown in the drawings.
As shown in fig. 1 to 6, the flexible dual-channel voltage type speed sensor of the present invention comprises an outer casing 1, a central support 2, a hall chip 7, magnet 6, circuit board 3, shielding tube 4 and cable 5, central support 2 locates the position that is close to its a terminal surface in the shell body 1, circuit board 3 includes square circuit board 31 and circular circuit board 33, cable 5 is connected to square circuit board 31 rear end, square circuit board 31 crosses central support 2 and fixes a position at the shell center, circular circuit board 33 is located in the terminal surface of central support 2, evenly be equipped with two hall chip 7 around its center on the circular circuit board 33, square circuit board 31 passes through soft arranging wire 32 pressfitting connection with circular circuit board 33, the inward position of circle circuit board 33 is equipped with magnet 6 in central support 2, shielding tube 4 covers establishes square circuit board 31 and is located on central support 2 in shell body 1. And all electronic components on the circuit board 3 are assembled by adopting SMT paster. The shielding tube 4 is made of copper metal, and hard silicon resin is sprayed on the outer wall surface.
As shown in fig. 5/6, the rear portion of the central bracket 2 is provided with an insertion opening 21 for mounting the square circuit board 31, so that the square circuit board 31 is located at the center of the inside of the outer housing 1.
To sum up, the present invention, as described in the specification and the drawings, is made into a practical sample and tested by multiple use, and from the test result, it is proved that the utility model can achieve the intended purpose, and the practicability is undoubted. The above-mentioned embodiments are merely provided for convenience of illustration of the present invention and are not intended to be limiting in form; any person skilled in the art can make local changes or modifications without departing from the scope of the present invention and the technical features and similar features disclosed in the present invention, and all equivalent embodiments using the technical content disclosed in the present invention belong to the protection scope of the present invention.
Claims (4)
1. The utility model provides a flexible binary channels voltage type speedtransmitter, includes shell body (1), central support (2), hall chip (7), magnet (6), circuit board (3), shielding pipe (4) and cable (5), and central support (2) are located the position that is close to its terminal surface in shell body (1), its characterized in that: circuit board (3) including square circuit board (31) and circular circuit board (33), square circuit board (31) rear end connecting cable (5), center support (2) location is crossed in square circuit board (31) at the shell center, circular circuit board (33) are located in the terminal surface of center support (2), evenly be equipped with two hall chip (7) around its center on circular circuit board (33), square circuit board (31) are connected through soft arranging wire (32) pressfitting with circular circuit board (33), circle circuit board (33) inward position is equipped with magnet (6) in center support (2), square circuit board (31) are established and are located on center support (2) in shell body (1) to shielding pipe (4) cover.
2. The flexible dual channel voltage mode speed sensor of claim 1, wherein: and all electronic components on the circuit board (3) are assembled by adopting SMT patches.
3. The flexible dual channel voltage mode speed sensor of claim 1, wherein: the tail of the central support (2) is provided with an embedding opening (21) for installing a square circuit board (31), so that the square circuit board (31) is positioned in the center of the inner part of the outer shell (1).
4. A flexible dual channel voltage mode speed sensor according to any one of claims 1 to 3, wherein: the shielding tube (4) is made of copper metal, and hard silicon resin is sprayed on the outer wall surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921351170.9U CN210269899U (en) | 2019-08-15 | 2019-08-15 | Flexible double-channel voltage type speed sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921351170.9U CN210269899U (en) | 2019-08-15 | 2019-08-15 | Flexible double-channel voltage type speed sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210269899U true CN210269899U (en) | 2020-04-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921351170.9U Active CN210269899U (en) | 2019-08-15 | 2019-08-15 | Flexible double-channel voltage type speed sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210269899U (en) |
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2019
- 2019-08-15 CN CN201921351170.9U patent/CN210269899U/en active Active
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