CN221198706U - Novel air suspension temperature sensor - Google Patents

Abstract

The utility model provides a novel air suspension temperature sensor which comprises a thermistor, a sensor shell and a pin which can be electrically connected with an external circuit board to transmit signals, wherein the thermistor is fixed in the sensor shell, the pin comprises a first section positioned in the sensor shell and a second section extending out of the sensor shell, the first section is electrically connected with a lead wire of the thermistor, and a spiral buffer section which enables the sensor shell to abut against the surface of an air compressor is arranged on the second section. The air suspension temperature sensor provided by the utility model is used for testing the temperature of the air compressor, has the advantages of small volume, light weight and low cost, can be integrated on an external circuit board, is provided with the spiral buffer section at the pin part, can be closely attached to the air compressor even in a bumpy road section, can accurately sense temperature and quickly respond, and can prevent the air compressor from being overhigh in temperature.

Description

Novel air suspension temperature sensor

Technical Field

The utility model relates to the technical field of temperature sensors, in particular to a novel air suspension temperature sensor.

Background

With the increasing demand for comfort of automobiles, air suspensions gradually become standard of middle-high-end automobiles. The air suspension uses the compressor to continuously charge and discharge air to realize the adjustment of the suspension and improve the comfort. The air compressor is easy to generate heat after high-strength operation, and when the temperature exceeds the temperature, the compressor is damaged. In order to improve reliability, the compressor stops working when the temperature is too high, and the temperature of the air compressor needs to be detected in real time. The position of the air compressor is constantly changed due to the fact that the vehicle is bumpy in the driving process, and the sensor can accurately measure the temperature only by being closely attached to the air compressor.

There is therefore a need to design a new air suspension temperature sensor to overcome the above-mentioned problems.

Disclosure of utility model

The utility model aims to overcome the defects of the prior art, and provides a novel air suspension temperature sensor, which at least solves part of the problems in the prior art.

The utility model is realized in the following way:

The utility model provides a novel air suspension temperature sensor which comprises a thermistor, a sensor shell and a pin which can be electrically connected with an external circuit board to transmit signals, wherein the thermistor is fixed in the sensor shell, the pin comprises a first section positioned in the sensor shell and a second section extending out of the sensor shell, the first section is electrically connected with a lead wire of the thermistor, and a spiral buffer section which enables the sensor shell to abut against the surface of an air compressor is arranged on the second section.

Further, the sensor housing comprises a metal shell abutted against the surface of the air compressor and a plastic shell connected with the metal shell in an injection molding mode, and the thermistor is fixed in the metal shell.

Further, the metal shell is filled with heat-conducting silicone grease.

Further, the first section extends into the metal shell and is soldered to the lead.

Further, the plastic shell comprises a first plastic part and a second plastic part, the bottom of the first plastic part stretches into the metal shell, the second plastic part surrounds the outer wall of the metal shell, the second plastic part is arranged at one end, close to the first plastic part, of the metal shell, and the first plastic shell is connected with the second plastic shell.

Further, the first section is secured within the first plastic portion.

Further, the thermistor is closely attached to the inner wall of the metal shell.

Further, the second section is soldered to an external circuit board.

The utility model has the following beneficial effects:

1. The air suspension temperature sensor provided by the utility model is used for testing the temperature of the air compressor, has the advantages of small volume, light weight and low cost, can be integrated on an external circuit board, is provided with the spiral buffer section at the pin part, can be closely attached to the air compressor even in a bumpy road section, can accurately sense temperature and quickly respond, and can prevent the air compressor from being overhigh in temperature.

2. In the utility model, the pins are directly welded on the external circuit board, so that wires and plug connectors are omitted, the structure is more compact, and the cost is lower.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram illustrating the installation of a novel air suspension temperature sensor provided by an embodiment of the present utility model;

FIG. 2 is a front view of a novel air suspension temperature sensor provided by an embodiment of the present utility model;

FIG. 3 is a side view of a novel air suspension temperature sensor provided by an embodiment of the present utility model;

FIG. 4 is an oblique view of a novel air suspension temperature sensor provided by an embodiment of the present utility model;

fig. 5 is a partial cross-sectional view of a novel air suspension temperature sensor provided by an embodiment of the utility model.

In the figure: thermistor 1, sensor housing 2, first section 3, second section 4, spiral buffer section 5, lead wire 6, metal shell 7, first plastic part 8, second plastic part 9, air compressor surface 10, external circuit board 11.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to 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.

The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature.

Referring to fig. 1-5, the embodiment of the utility model provides a novel air suspension temperature sensor, which comprises a thermistor 1, a sensor housing 2 and a pin which can be electrically connected with an external circuit board 11 to transmit signals, wherein the thermistor 1 is fixed in the sensor housing 2, the pin comprises a first section 3 positioned in the sensor housing 2 and a second section 4 extending out of the sensor housing 2, a spiral buffer section 5 which enables the sensor housing 2 to abut against the surface 10 of an air compressor is arranged on the second section 4, and when in use, the spiral buffer section 5 is in a compressed state, and the first section 3 is electrically connected with a lead 6 of the thermistor 1.

The sensor housing 2 comprises a metal shell 7 propping against the surface 10 of the air compressor and a plastic shell connected with the metal shell 7 in an injection molding mode, wherein the metal shell 7 and the plastic shell enclose a closed space, the thermistor 1 is fixed in the metal shell 7, the thermistor 1 is tightly attached to the inner wall of the metal shell 7, and the lead 6 is bent to enable the thermistor 1 to be better attached to the inner wall of the metal shell 7, so that the accuracy of temperature measurement is further improved. And the metal shell 7 is filled with heat conduction silicone grease, so that the heat conduction effect is enhanced. The first section 3 of the pin is fixed in the first plastic part 8, and the first section 3 of the pin extends into the metal shell 7 to be welded with the lead 6.

As shown in fig. 5, in this embodiment, the plastic shell includes a first plastic part 8 and a second plastic part 9, the bottom of the first plastic part 8 extends into the metal shell 7, the second plastic part 9 is disposed around the outer wall of the metal shell 7, the second plastic part 9 is disposed at one end of the metal shell 7 near the first plastic part 8, and the first plastic shell 8 and the second plastic shell 9 are connected.

The first plastic part 8 is used for fixing the first section 3 of the pin, then the first section 3 of the pin is welded with the lead 6 of the thermistor 1, then the thermistor 1 is placed into the metal shell 7, the second plastic part 9 is formed in an injection molding mode, and the second plastic part 9 connects the first plastic part 8 and the metal shell 7 into a whole, so that the sealing of the temperature sensor is completed. The utility model has simple structure and convenient manufacture.

In this embodiment, the second section 4 of the pin is welded to the external circuit board 11, and the thermistor 1 is electrically connected to the vehicle control unit through the external circuit board 11, and if the temperature of the air compressor is detected to be too high, the vehicle control unit controls the air compressor to stop working. In the utility model, the pins are directly welded on the external circuit board 11, so that wires and plugs are omitted, the structure is more compact, and the cost is lower.

As shown in fig. 1, when the vehicle runs on a bumpy road, the air suspension moves up and down to adjust the height of the vehicle body from the ground, and the position of the air compressor mounted on the air suspension is continuously changed, and under such frequent vibration environment, relative displacement is generated between the air compressor and the external circuit board 11, so the design of the temperature sensor should consider shock resistance. In the utility model, the spiral buffer section 5 has a certain precompression amount, so that the metal shell 7 is tightly attached to the surface 10 of the air compressor, accurate temperature measurement is realized, and the air compressor is prevented from being damaged due to overhigh temperature. If the spiral buffer section 5 is further compressed when the air compressor moves upward relative to the external circuit board 11 (moves close to the external circuit board 11), the metal shell 7 still keeps close contact with the air compressor surface 10; if the air compressor moves downwards relative to the external circuit board 11 (moves away from the external circuit board 11), the precompression amount of the spiral buffer section 5 enables the metal shell 7 to follow the air compressor, the metal shell 7 keeps on being clung to the surface 10 of the air compressor, and the precompression amount of the spiral buffer section 5 is designed to enable the metal shell 7 to be clung to the surface 10 of the air compressor when the air compressor generates maximum displacement away from the external circuit board 11.

The air suspension temperature sensor provided by the utility model is used for testing the temperature of the air compressor, has the advantages of small volume, light weight and low cost, can be integrated on an external circuit board 11, is provided with the spiral buffer section 5 at the pin part, can be tightly attached to the air compressor even in a bumpy road section, prevents the air compressor from being over-high in temperature, and can accurately sense temperature and quickly respond.

In the utility model, the thermistor pin is a metal wire with a spiral buffer section and has rebound capability. The novel air suspension temperature sensor provided by the utility model is suitable for an object to be measured, the position of which can be changed. In the present embodiment, the thermistor 1 is an NTC thermistor.

What is not described in detail in this specification is prior art known to those skilled in the art.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims (7)

1. A novel air suspension temperature sensor is characterized in that: the sensor comprises a thermistor, a sensor shell and a pin which can be electrically connected with an external circuit board to transmit signals, wherein the thermistor is fixed in the sensor shell, the pin comprises a first section positioned in the sensor shell and a second section extending out of the sensor shell, the first section is electrically connected with a lead wire of the thermistor, and a spiral buffer section which enables the sensor shell to be abutted against the surface of an air compressor is arranged on the second section; the sensor shell comprises a metal shell which is abutted against the surface of the air compressor and a plastic shell which is connected with the metal shell in an injection molding mode, and the thermistor is fixed in the metal shell.

2. The novel air suspension temperature sensor of claim 1 wherein: and the metal shell is filled with heat-conducting silicone grease.

3. The novel air suspension temperature sensor of claim 1 wherein: the first section extends into the metal shell and is welded with the lead.

4. The novel air suspension temperature sensor of claim 1 wherein: the plastic shell comprises a first plastic part and a second plastic part, the bottom of the first plastic part stretches into the metal shell, the second plastic part surrounds the outer wall of the metal shell, the second plastic part is arranged at one end, close to the first plastic part, of the metal shell, and the first plastic part is connected with the second plastic part.

5. The novel air suspension temperature sensor of claim 4 wherein: the first section is secured within the first plastic portion.

6. The novel air suspension temperature sensor of claim 1 wherein: the thermistor is tightly attached to the inner wall of the metal shell.

7. The novel air suspension temperature sensor of claim 1 wherein: the second section is soldered to an external circuit board.