阅读说明：本技术 一种非接触霍尔式电子双脉冲速度里程传感器 (Non-contact Hall type electronic double-pulse speed mileage sensor ) 是由 于秀福 于 2019-04-18 设计创作，主要内容包括：本发明公开了一种非接触霍尔式电子双脉冲速度里程传感器,旨在提供一种能够响应速度快、测量精度高、抗干扰能力强、高低频性能优异的优点,其技术方案要点是,一种非接触霍尔式电子双脉冲速度里程传感器,包括接插件、O型圈、传感器外壳、线路板以及霍尔组件,接插件一侧连接有仪表盘,接插件包括圆形塑料壳,圆形塑料壳与O型圈连接,圆形塑料壳内设有若干个固定柱,固定柱上设有插针,线路板上连接有若干个焊盘,霍尔组件包括永磁铁,永磁铁的一侧设有霍尔下骨架,霍尔下骨架上设有引脚过孔,永磁铁另一侧连接有霍尔元件,霍尔元件一侧连接有霍尔上骨架。此机构运作起来能够响应速度快、测量精度高、抗干扰能力强以及高低频性能优异的好处。(The invention discloses a non-contact Hall type electronic double-pulse speed mileage sensor, aiming at providing a sensor which has the advantages of high response speed, high measurement precision, strong anti-interference capability and excellent high-low frequency performance, the technical scheme is that, a non-contact hall formula electron dipulse speedometer sensor, including the connector, O type circle, sensor housing, circuit board and hall subassembly, connector one side is connected with the panel board, the connector includes circular plastic casing, circular plastic casing is connected with O type circle, be equipped with a plurality of fixed column in the circular plastic casing, be equipped with the contact pin on the fixed column, be connected with a plurality of pad on the circuit board, hall subassembly includes the permanent magnet, one side of permanent magnet is equipped with skeleton under the hall, be equipped with the pin via hole under the hall on the skeleton, the permanent magnet opposite side is connected with hall element, hall element one side is connected with skeleton on the hall. The mechanism has the advantages of high response speed, high measurement precision, strong anti-interference capability and excellent high-low frequency performance when in operation.)

1. The utility model provides a non-contact hall formula electron dipulse speed mileage sensor, includes connector (1), O type circle (2), sensor housing (3), circuit board (4) and hall subassembly (5), its characterized in that: one side of the connector (1) is connected with an instrument panel, the connector (1) comprises a circular plastic shell (11), one side of the circular plastic shell (11) is stepped, the circular plastic shell (11) is connected with an O-shaped ring (2) and is used for riveting the shell, a plurality of fixing columns (111) fixedly connected with the circular plastic shell are arranged in the circular plastic shell (11), contact pins (112) are fixedly connected onto the fixing columns (111), a plurality of bonding pads (19) are connected onto the circuit board (4), the bonding pads (19) are matched with the contact pins (112) and are used for supplying power and outputting signals to the circuit board (4), a plurality of through holes (18) are connected onto the circuit board (4), leads (6) are connected onto the through holes (18), the Hall assembly (5) is connected with the circuit board (4) through the leads (6), and the Hall assembly (5) is fixedly connected into the sensor shell (3, hall subassembly (5) include permanent magnet (51), one side of permanent magnet (51) is equipped with skeleton (52) under the hall rather than the adaptation, be equipped with on skeleton (52) under the hall rather than fixed connection's pin via hole (53), the opposite side of permanent magnet (51) is connected with Hall element (54), Hall element (54) pin and pin via hole (53) adaptation, and Hall element (54) pin is connected with wire (6), skeleton (55) on one side of Hall element (54) is connected with the hall for seal Hall element (54).

2. The non-contact hall-type electronic double-pulse speedometer sensor of claim 1, wherein: the outer wall of the circular plastic shell (11) is respectively provided with a side lug (12) fixedly connected with the circular plastic shell, the side lugs (12) are respectively provided with a through hole (13) fixedly connected with the circular plastic shell, and the circular plastic shell is provided with an exhaust hole (14) for facilitating the emission of internal gas.

3. The non-contact hall-type electronic double-pulse speedometer sensor of claim 2, wherein: a fixing plate (113) fixedly connected with the round plastic shell (11) is arranged in the round plastic shell, and the fixing plate (113) is fixedly connected with the fixing column (111).

4. The non-contact hall-type electronic double-pulse speedometer sensor of claim 1, wherein: the circuit board (4) is manufactured by SMT welding, and a voltage stabilizing circuit (15), a filter circuit (16) and an amplifying circuit (17) are respectively arranged in the circuit board (4) and used for processing, analyzing and converting detection signals into stable rectangular pulse signals to be output.

5. The non-contact hall-type electronic double-pulse speedometer sensor of claim 1, wherein: the inside of sensor housing (3) one end is cascaded, and sensor housing (3) and connector (1) adaptation, is equipped with constant head tank (7) that a plurality of and its parallel connection in sensor housing (3) for with connector (1) chucking in sensor housing (3).

6. The non-contact hall-type electronic double-pulse speedometer sensor of claim 1, wherein: the sensor shell (3) is provided with threads for people to install the sensor shell (3) on the gearbox and the retarder conveniently.

Technical Field

The invention relates to the technical field of automobile sensors, in particular to a non-contact Hall type electronic double-pulse speed mileage sensor.

Background

The speed mileage sensor is generally used on a vehicle-mounted gearbox (the speed mileage sensor is also gradually popularized in other aspects such as a retarder, high-precision textile machinery and motor rotating speed monitoring), is a key part for monitoring the crank angle, the camshaft position and the gear rotating speed of the gearbox, and is classified into the following types: the electromagnetic speed and mileage sensor is characterized by comprising a magneto-electric type sensor, a Hall type sensor and a photoelectric type sensor, wherein the non-contact Hall type speed and mileage sensor utilizes a Hall element to convert gear rotation into an electric signal to be output, a driving dial plate displays real-time speed and mileage, and the electric signal can also be used in a vehicle speed control circuit and an automatic gear shifting system.

At present, a lot of non-contact Hall type speedometer sensors appear in the market and data, mainly comprising a metal shell, a Hall assembly, a built-in circuit board and an output connector, wherein the Hall assembly is formed by matching a Hall switch element and a permanent magnet. Wherein the great part non-contact hall speed mileage sensor: the adaptability of the gear is poor due to different sizes of the gears, different magnetic strengths of the magnets, different installation environments, unreasonable design of a signal processing circuit, improper material selection of all parts and the like; a part of non-contact Hall type vehicle speed and mileage sensors are still provided with old four-pin Hall elements, dead zones exist in detection angles, the high and low frequency performance is poor, and the requirements on installation positions and environments are severe; and some non-contact Hall type vehicle speed mileage sensors can meet the requirements, but have poor anti-interference capability and bearable environment capability in a vehicle-mounted complex environment.

Disclosure of Invention

The invention aims to provide a non-contact Hall type electronic double-pulse speed mileage sensor which has the advantages of high response speed, high measurement precision, strong anti-interference capability and excellent high-low frequency performance.

The technical purpose of the invention is realized by the following technical scheme:

a non-contact Hall type electronic double-pulse velocity mileage sensor comprises a connector, an O-shaped ring, a sensor shell, a circuit board and a Hall assembly, wherein one side of the connector is connected with an instrument panel, the connector comprises a circular plastic shell, the outer wall of the circular plastic shell is respectively provided with a side lug fixedly connected with the circular plastic shell, the side lugs are respectively provided with a through hole fixedly connected with the side lug, the circular plastic shell is provided with an exhaust hole for facilitating the diffusion of internal gas, one side of the circular plastic shell is in a step shape, the circular plastic shell is connected with the O-shaped ring and is used for riveting a shell, the circular plastic shell is internally provided with a plurality of fixed columns fixedly connected with the circular plastic shell, the fixed columns are fixedly connected with contact pins, the circuit board is connected in the sensor shell, the circuit board is connected with a plurality of bonding pads, the bonding pads, the through hole is connected with a wire, the Hall assembly is connected with the circuit board through the wire, the Hall assembly is fixedly connected in the sensor shell and comprises a permanent magnet, one side of the permanent magnet is provided with a lower Hall framework matched with the permanent magnet, the lower Hall framework is provided with a pin through hole fixedly connected with the Hall assembly, the other side of the permanent magnet is connected with a Hall element, a pin of the Hall element is matched with the pin through hole, the pin of the Hall element is connected with the wire, one side of the Hall element is connected with an upper Hall framework and used for sealing the Hall element. The inside of sensor housing one end is cascaded, and sensor housing and connector adaptation are equipped with a plurality of in the sensor housing rather than parallel connection's constant head tank for with the connector chucking in sensor housing

Through adopting above-mentioned technical scheme, people pass through the screw thread with the sensor and install at the gearbox, retarber shaft transmission position, the cutting of gear is experienced to permanent magnet in the sensor, and pass the magnetic field behind the hall element, the change in magnetic field is experienced to the hall element, the hall element pin passes through the wire with information transmission to the circuit board on, the circuit board passes through the pad with the signal transmission who receives to rather than the contact pin of adaptation on, the final information transmission of contact pin is to motormeter dish, at last with speed and the audio-visual presentation of mileage information in the presence of navigating mate, be convenient for confirm driving state, it is fast to have realized influencing the response speed to detect through this sensor, measurement accuracy is high, the interference killing feature is strong and the excellent benefit of high-low.

Further setting: the outer wall of the circular plastic shell is respectively provided with a side lug fixedly connected with the circular plastic shell, the side lugs are respectively provided with a through hole fixedly connected with the circular plastic shell, and the circular plastic shell is provided with an exhaust hole for facilitating the emission of internal gas. A fixing plate fixedly connected with the round plastic shell is arranged in the round plastic shell and fixedly connected with the fixing column.

Through adopting above-mentioned technical scheme, utilize the side ear can play fixed and spacing effect to circular plastics. The vent holes in the circular plastic can facilitate the emission of internal gas. The fixed plate can play the fixed action to the fixed column, can also play limiting displacement to the circuit board simultaneously.

Further setting: the circuit board is manufactured by SMT welding, and a voltage stabilizing circuit, a filter circuit and an amplifying circuit are respectively arranged in the circuit board and used for processing, analyzing and converting the detection signals into stable rectangular pulse signals to be output.

By adopting the technical scheme, the detection signal can be processed, analyzed and converted into a stable rectangular pulse signal by utilizing the voltage stabilizing circuit, the filter circuit and the amplifying circuit, and then the stable rectangular pulse signal is output.

Further setting: the inside of sensor housing one end is cascaded, and sensor housing and connector adaptation are equipped with a plurality of in the sensor housing rather than parallel connection's constant head tank for with the connector chucking in sensor housing.

Through adopting above-mentioned technical scheme, cascaded sensor housing is convenient for people's installation, and the constant head tank can be with plug-in components chucking in sensor housing.

Further setting: the sensor shell is provided with threads for people to conveniently install the sensor shell on the gearbox and the retarder.

Through adopting above-mentioned technical scheme, utilize the screw thread can be convenient for people to install sensor housing on gearbox and retarber.

In conclusion, the invention has the following beneficial effects: people utilize the hall element in the sensor housing to transmit the received information to the circuit board, and the circuit board transmits the signal to rather than the contact pin of adaptation in, the contact pin is in signal introduction to the panel board, detects through this sensor and has realized that the influence is fast, measurement accuracy is high, the interference killing feature is strong and the high low frequency performance is excellent benefit.

Drawings

The invention is further described below with reference to the accompanying drawings.

FIG. 1 is a schematic diagram of a non-contact Hall electronic double-pulse speedometer sensor;

FIG. 2 is a schematic view of a connector construction;

FIG. 3 is a schematic view of the internal construction of the connector;

FIG. 4 is a schematic diagram of a Hall assembly structure;

FIG. 5 is a flow chart of the non-contact Hall electronic double-pulse speedometer sensor;

fig. 6 is a diagram of the rotation position of the non-contact hall type electronic double-pulse speedometer sensor.

In the figure, 1, connector; 11. a circular plastic shell; 111. fixing a column; 112. inserting a pin; 113. a fixing plate; 12. a lateral ear; 13. a through hole; 14. an exhaust hole; 15. a voltage stabilizing circuit; 16. a filter circuit; 17. an amplifying circuit; 18. a via hole; 19. a pad; 120. an instrument panel; 2. an O-shaped ring; 3. a sensor housing; 4. a circuit board; 5. a Hall assembly; 51. a permanent magnet; 52. a Hall lower framework; 53. a pin via hole; 54. a Hall element; 55. a Hall upper framework; 6. a wire; 7. and (6) positioning a groove.

Detailed Description

The following further describes the embodiments of the present invention with reference to the drawings.

The technical scheme adopted by the invention is as follows:

the utility model provides a non-contact hall formula electron dipulse speedometer sensor, including connector 1, O type circle 2, sensor housing 3, circuit board 4 and hall subassembly 5, as shown in FIG. 1, as shown in FIG. 2 and shown in FIG. 6, connector 1's right side electricity is connected with panel board 120, connector 1 includes circular plastic casing 11, circular plastic casing 11's outer wall is equipped with respectively rather than fixed connection's side ear 12, be equipped with rather than fixed connection's through-hole 13 on the ear 12 respectively, be equipped with exhaust hole 14 on the circular plastics, be used for being convenient for inside gaseous giving off, circular plastic casing 11's left side is cascaded, circular plastic casing 11 is connected with O type circle 2, be used for riveting the pressure of casing.

As shown in fig. 2 and fig. 3, a plurality of fixing posts 111 fixedly connected with the fixing posts are arranged in the circular plastic shell 11, pins 112 are fixedly connected with the fixing posts 111, a plurality of bonding pads 19 are connected with the right side of the circuit board 4, and the bonding pads 19 are adapted to the pins 112 and used for supplying power and outputting signals to the circuit board 4. A fixing plate 113 fixedly connected with the round plastic shell 11 is arranged in the round plastic shell 11, and the fixing plate 113 is fixedly connected with the fixing column 111. The circuit board 4 is formed by SMT welding manufacturing, a voltage stabilizing circuit 15, a filter circuit 16 and an amplifying circuit 17 are arranged in the circuit board 4 respectively and used for processing, analyzing and converting detection signals into stable rectangular pulse signals to be output, the left side of the circuit board 4 is connected with a plurality of via holes 18, the via holes 18 are connected with leads 6, and the Hall assembly 5 is connected with the circuit board 4 through the leads 6.

As shown in fig. 1 and 4, the hall element 5 is fixedly connected in the sensor housing 3, the hall element 5 includes a permanent magnet 51, a lower hall frame 52 adapted to the permanent magnet 51 is arranged on the right side of the permanent magnet 51, a pin via 53 fixedly connected to the lower hall frame 52 is arranged on the lower hall frame, a hall element 54 is connected to the left side of the permanent magnet 51, pins of the hall element 54 are adapted to the pin via 53, the pins of the hall element 54 are connected to the wire 6, and an upper hall frame 55 is connected to the left side of the hall element 54 and used for sealing the hall element 54. The inside of 3 right-hand members of sensor housing is cascaded, and the right-hand member of sensor housing 3 and 11 left end adaptations of circular plastic casing, is equipped with a plurality of and its parallel connection's constant head tank 7 in the sensor housing 3, constant head tank 7 and the adaptation of side ear 12 for with 1 chucking of connector in sensor housing 3, be equipped with the screw thread on the sensor housing 3, be used for being convenient for people to install sensor housing 3 on gearbox and retarber.

The working principle is as follows:

the sensor shell 3 is installed at the wheel shaft transmission position of a gearbox, a retarder and the like through threads, the top of the probe is required to be opposite to the tooth top of a test gear, when the wheel shaft rotates, the test gear is driven to rotate, gear tooth cutting is generated by a sensor permanent magnet 51, the permanent magnet 51 in the sensor senses the cutting of the gear and penetrates through a magnetic field of a Hall element 54, the Hall element 54 senses the change of the magnetic field to switch the on-off state of an internal circuit, one gear tooth corresponds to the on-off state of the Hall element 54, a pin of the Hall element 54 transmits information to a circuit board 4 through a lead 6, a voltage stabilizing circuit 15, a filter circuit 16 and an amplifying circuit 17 on the circuit board 4 process and analyze detection signals to be converted into stable rectangular pulse signals to be output, the signal frequency is in direct proportion to the rotation speed of the test gear and the number of the wheel teeth, the output pulse signals are transmitted to a contact, the current rotating speed of the tested gear is calculated by a circuit in the instrument panel 112 according to the corresponding relation, then the current running speed of the vehicle is indirectly calculated, the mileage is accumulated, and finally the speed and mileage information is visually displayed in front of a driver, so that the running state can be conveniently confirmed. Therefore, the novel speedometer sensor with high response speed, high measurement precision, strong anti-interference capability and excellent high-low frequency performance is realized.

The present invention is not intended to be limited to the particular embodiments shown above, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.