阅读说明：本技术 一种速度温度一体式传感器 (Speed and temperature integrated sensor ) 是由 于秀福 于 2019-04-18 设计创作，主要内容包括：本发明公开了一种度温度一体式传感器,旨在提供一种能够对变速箱齿轮转速检测以及对箱内油温检测的优点,其技术方案要点是,一种速度温度一体式传感器,包括传感器外壳、感应线圈组件、热敏电阻组件以及接插件组件,感应线圈组件包括感应线圈、线圈骨架、永磁磁铁以及铁芯,感应线圈组件的一侧电连接有输出导线,输出导线的一端与接插件组件电连接,接插件组件包括塑料件、插针以及O型圈,O型圈套设在塑料件的一侧上,插针固定连接在塑料件内,插针上电连接有第一输出导线,第一输出导线与热敏电阻组件电连接。此机构运作起来实现了对变速箱齿轮转速以及对向内油温的检测。(The invention discloses a temperature and temperature integrated sensor, and aims to provide the advantages of detecting the rotating speed of a gear of a gearbox and detecting the oil temperature in the gearbox. The mechanism operates to achieve detection of transmission gear speed and inward oil temperature.)

1. The utility model provides a speed temperature integral type sensor, includes sensor housing (1), induction coil subassembly (2), thermistor subassembly (3) and connector assembly subassembly (4), its characterized in that: the induction coil assembly (2) is connected in the sensor shell (1), the induction coil assembly (2) comprises an induction coil (21), a coil framework (22), a permanent magnet (23) and an iron core (24), the induction coil (21) is wound on the coil framework (22), one end of the coil framework (22) is in sliding connection with the iron core (24), the other end of the coil framework (22) is connected with the permanent magnet (23), one side of the induction coil assembly (2) is provided with an output lead (26) electrically connected with the induction coil assembly, one end of the output lead (26) is electrically connected with the connector assembly (4), the connector assembly (4) comprises a plastic part (41), a contact pin (42) and an O-shaped ring (43), the O-shaped ring (43) is sleeved on one side of the plastic part (41), the contact pin (42) is fixedly connected in the plastic part (41), and the contact pin (42) is connected with the output lead (26), the contact pin (42) is electrically connected with a first output lead (32), the first output lead (32) is electrically connected with the thermistor component (3), and the thermistor component (3) is a thermistor (31).

2. The integrated speed and temperature sensor of claim 1, wherein: the sensor shell (1) is a metal copper shell.

3. The integrated speed and temperature sensor of claim 1, wherein: both sides of coil skeleton (22) are connected with rivet (25) respectively, and the one end and the induction coil (21) of rivet (25) are connected, and the other end and the output wire (26) of rivet (25) are connected.

4. The integrated speed and temperature sensor of claim 1, wherein: one end in the sensor shell (1) and one end of the connector assembly (4) are stepped respectively, and the sensor shell (1) is matched with the connector assembly (4).

5. The integrated speed and temperature sensor of claim 1, wherein: the sensor is characterized in that a plurality of clamping blocks (44) fixedly connected with the connector assembly (4) are respectively arranged on the outer wall of the connector assembly (4), and a plurality of clamping grooves (5) matched with the clamping blocks (44) are arranged in the sensor shell (1) and used for clamping the connector assembly (4) in the sensor shell (1).

6. The integrated speed and temperature sensor of claim 1, wherein: the sensor shell (1) is provided with a thread strip (11) for facilitating the sensor shell to be placed into a gearbox.

7. The integrated speed and temperature sensor of claim 1, wherein: the iron core (24) is an iron rod and an iron sheet.

8. The integrated speed and temperature sensor of claim 1, wherein: the sensor shell (1) is provided with a gearbox (12) in threaded connection with the sensor shell, and a test gear (13) parallel to the gearbox (12) is arranged below the gearbox (12).

Technical Field

The invention relates to the technical field of automobiles, in particular to a speed and temperature integrated sensor.

Background

At present, most gearbox manufacturers on the market install three types of sensors, namely a speed sensor, a temperature sensor and a pressure sensor, on the gearbox in order to enable the gearbox to work more stably, efficiently and safely, wherein the speed sensor is used for monitoring the crank angle, the camshaft position and the gear rotating speed of the gearbox, the temperature sensor is used for detecting the real-time oil temperature in the gearbox, the pressure sensor is used for detecting the oil pressure change in the gearbox, most of the pressure sensors are not produced as independent accessories and are independently installed on the gearbox, but pressure elements are integrated in a gearbox control box for detection, and the speed sensor and the temperature sensor are also installed at corresponding positions of the gearbox for detecting the gear rotating speed and the oil temperature in the gearbox respectively. The use of sensor harnesses and the manufacturing process flow of the transmission are increased, and the production and maintenance costs are correspondingly increased.

Disclosure of Invention

The invention aims to provide a speed and temperature integrated sensor which has the advantages of being capable of detecting the rotating speed of gears of a gearbox and detecting the oil temperature in the gearbox.

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

a speed and temperature integrated sensor comprises a sensor shell, an induction coil assembly, a thermistor assembly and a connector assembly, wherein the induction coil assembly is connected in the sensor shell and comprises an induction coil, a coil framework, a permanent magnet and an iron core, the induction coil is wound on the coil framework, one end of the coil framework is in sliding connection with the iron core, the other end of the coil framework is connected with the permanent magnet, one side of the induction coil assembly is provided with an output lead which is electrically connected with the induction coil assembly, one end of the output lead is electrically connected with the connector assembly, the connector assembly comprises a plastic piece, a contact pin and an O-shaped ring, the O-shaped ring is sleeved on one side of the plastic piece, the contact pin, and the contact pin is connected with the output lead, the contact pin is electrically connected with a first output lead, the first output lead is electrically connected with the thermistor assembly, and the thermistor assembly is a thermistor.

Through adopting above-mentioned technical scheme, people install the sensor at the gearbox, shaft transmission positions such as retarber, the interior permanent magnetism magnetic field of induction coil subassembly produces the induction coil on the magnetic field coil skeleton and produces corresponding electromotive force output, the electromotive force is transmitted to the connector assembly on through the output conductor that is connected with the induction coil subassembly electricity, spread information through the connector assembly, in addition invade the sensor probe in box liquid medium, the inside temperature of box spreads into inside thermistor position through metal casing, thermistor receives the corresponding resistance of temperature influence output, the output resistance advances on first output conductor transmits the connector assembly, with this realization to gearbox gear rotational speed detect and to the incasement oil temperature detect. The O-shaped ring can be used for better locking the connector assembly and the sensor shell, and the connector assembly cannot easily fall off.

Further setting: the sensor shell is a metal copper shell.

Through adopting above-mentioned technical scheme, the metal copper casing then utilizes the copper product material attribute, and faster conducts the external temperature to the thermistor position and measures, reduces inside and outside temperature difference as fast as possible, makes temperature output resistance more accurate, and the good corrosion resistance of metal copper also is sensor life longer simultaneously.

Further setting: two sides of the coil framework are respectively connected with a rivet, one end of the rivet is connected with the induction coil, and the other end of the rivet is connected with the output lead. One end in the sensor shell and one end of the connector assembly are respectively in a step shape, and the sensor shell is matched with the connector assembly.

Through adopting above-mentioned technical scheme, utilize the rivet can transmit induction coil's signal, the operation of the people of being convenient for. The sensor shell and the plug assembly are respectively in a step shape, so that people can conveniently install the sensor shell and the plug assembly to play a role in locking.

Further setting: the outer wall of the connector assembly is respectively provided with a plurality of clamping blocks fixedly connected with the connector assembly, and the sensor shell is internally provided with a plurality of clamping grooves matched with the clamping blocks and used for clamping the connector assembly in the sensor shell. The sensor shell is provided with a thread strip for being conveniently placed into the gearbox. The iron core is an iron rod and an iron sheet. The sensor shell is provided with a gearbox in threaded connection with the sensor shell, and a test gear parallel to the gearbox is arranged below the gearbox.

Through adopting above-mentioned technical scheme, utilize draw-in groove on chucking piece and the sensor housing, can play the chucking effect with connector assembly chucking in sensor housing, can not drop easily, the people's of being convenient for use.

In conclusion, the invention has the following beneficial effects: people can detect the rotational speed of the gearbox gear and can also detect the oil temperature in the gearbox, so that the production cost and the maintenance cost of people are reduced, and the operation of people is facilitated.

Drawings

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

FIG. 1 is a schematic diagram of a speed and temperature integrated sensor configuration;

FIG. 2 is a schematic diagram of an induction coil assembly;

FIG. 3 is a schematic diagram of a thermistor assembly;

FIG. 4 is a schematic view of a connector assembly construction;

FIG. 5 is a schematic diagram of a speed temperature integrated sensor mounting location.

In the figure, 1, a sensor housing; 2. an induction coil assembly; 21. an induction coil; 22. a coil bobbin; 23. a permanent magnet; 24. an iron core; 25. riveting; 26. an output lead; 3. a thermistor assembly; 31. a thermistor; 32. a first output lead; 4. a connector assembly; 41. a plastic part; 42. inserting a pin; 43. an O-shaped ring; 44. a clamping block; 5. a card slot; 11. a threaded strip; 12. a gearbox; 13. and (6) testing the gear.

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:

a speed and temperature integrated sensor comprises a sensor shell 1, an induction coil assembly 2, a thermistor assembly 3 and a connector assembly 4, as shown in figure 1, figure 2 and figure 5, the sensor shell 1 is a metal copper shell, a thread strip 11 is arranged on the sensor shell 1 and is used for being conveniently placed in a gearbox 12, the induction coil assembly 2 is connected to the left side in the sensor shell 1, the induction coil assembly 2 comprises an induction coil 21, a coil framework 22, a permanent magnet 23 and an iron core 24, the induction coil 21 is wound on two sides of the coil framework 22, the middle position of the right end of the coil framework 22 is in sliding connection with the iron core 24, the iron core 24 is an iron rod and an iron sheet, the middle position of the left end of the coil framework 22 is connected with the permanent magnet 23, the permanent magnet 23 and the iron core 24 are on the same horizontal plane, two sides of the coil framework 22 are respectively connected with, the left end of the rivet 25 is connected to the induction coil 21, the right end of the rivet 25 is electrically connected to an output lead 26, the left end of the output lead 26 is connected to the rivet 25, and the right end of the output lead 26 is connected to the connector module 4.

As shown in fig. 1, 3 and 4, connector assembly 4 includes a plastic member 41, a pin 42 and an O-ring 43, where O-ring 43 is disposed on the left side of plastic member 41, pin 42 is fixedly connected within plastic member 41, and the pin 42 is connected with the output lead 26, the pin 42 is electrically connected with the first output lead 32, the first output lead 32 is electrically connected with the thermistor component 3, the thermistor component 3 is a thermistor 31, the sensor shell 1 is provided with threads, the right end in the sensor shell 1 and the left end of the plug-in component are respectively in a step shape, and sensor housing 1 and connector assembly 4 adaptation are equipped with a plurality of respectively on connector assembly 4's the outer wall rather than the chucking piece 44 of fixed connection, are equipped with the draw-in groove 5 of a plurality of and chucking piece 44 adaptation in sensor housing 1 for with connector assembly 4 chucking in sensor housing 1. As shown in fig. 1 and 5, the sensor housing 1 is provided with a transmission case 12 in threaded connection with the sensor housing, and a test gear 13 parallel to the transmission case 12 is arranged below the transmission case 12.

The working principle is as follows:

the sensor shell 1 is installed at the transmission position of a wheel shaft such as a gearbox 12, a retarder and the like through threads, a certain gap is required to be reserved at the top of the probe, the top of the probe is opposite to the tooth crest of the test gear 13, when the wheel shaft rotates, the test gear 13 is driven to rotate, after the wheel teeth cut a magnetic field generated by a permanent magnet 23 in the induction coil assembly 2, corresponding electromotive force is generated in the induction coil 21 to be output, the output electric signal is transmitted to a contact pin 42 of the connector assembly 4 through a rivet 25 connected with the induction coil 21 and an output lead 26 connected with the rivet 25, and the rear-end circuit processes and analyzes the electric signal to obtain the current; in addition, the sensor probe invades in the box liquid medium, the inside temperature of box spreads into inside thermistor 31 position through metal casing, thermistor 31 receives the temperature to influence the output and corresponds the resistance, transmit it to contact pin 42 of connector subassembly 4 through first output wire 32, can calculate the current temperature value in the box according to the output resistance, thereby realize detecting gear rotational speed and temperature value in the box, the technology burden and the cost burden that discrete part brought have been alleviateed promptly, also satisfy the assembly operation that simplifies under the corresponding functional state, realize the purpose of simplifying manufacturing.

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.