Pressure and temperature integrated sensor for vehicle

Abstract

The utility model discloses a pressure and temperature integrated sensor for a vehicle, which comprises a first interface section, a second interface section and a main body section, the first interface section and the second interface section are respectively positioned on two sides of the main body section, the first interface section and the second interface section are respectively screwed with the main body section, and a pressure and temperature component is arranged in the main body section. The pressure and temperature assembly comprises a conduction piece, the conduction piece comprises a conduction annular part and a conduction probe, and one end of the conduction probe extends into the first interface section. The pressure and temperature integrated sensor for the vehicle disclosed by the utility model has the beneficial effects that liquid such as engine oil is only introduced into the first interface section and interacts with the conduction probe and the conduction connecting rod so as to further act on the conduction annular part, but the liquid such as the engine oil is not in contact with the sensing piece, so that the leakage of the liquid such as the engine oil is avoided.

Description

Technical Field

[0001] The utility model belongs to the field of vehicle accessories, and in particular relates to a vehicle-used pressure and temperature integrated sensor. Background Art

[0002] The publication number is CN204666189U, the subject name is a utility model patent for a vehicle-mounted temperature and pressure measuring device, and its IPC classification number is G01D21 / 02. Its technical solution discloses that "the vehicle-mounted temperature and pressure measuring device includes a sensor mounting seat 1, a temperature sensor 2 and a pressure sensor 3. The sensor mounting seat 1 is a four-way joint. The temperature sensor 2 and the pressure sensor 3 are threadedly connected to two of the joints on the sensor mounting seat 1 and sealed with sealant. Pagoda heads 4 are installed on the other two joints of the sensor mounting seat 1, and the pipeline 6 to be tested is connected through the pagoda head 4. The two ends of the pipeline 6 to be tested are clamped on the pagoda head 4 by clamps. Different pagoda heads can be replaced to meet the needs of pipelines of different sizes."

[0003] It can be seen that the above utility model patent has disclosed one of the technical solutions of the vehicle-mounted temperature and pressure measuring device. The technical solution disclosed in the above utility model patent focuses on solving the problem of adapting to pipelines of different sizes. However, in the technical solution disclosed in the above utility model patent, the temperature sensor and the pressure sensor are respectively arranged on the opposite sides of the mounting seat, and the degree of integration is low, which needs to be further improved. Utility Model Content

[0004] The utility model aims at the existing technical situation, overcomes the above defects and provides a vehicle pressure and temperature integrated sensor.

[0005] The utility model adopts the following technical scheme, a vehicle pressure and temperature integrated sensor, comprising a first interface section, a second interface section and a main body section, wherein the first interface section and the second interface section are respectively located on both sides of the main body section, the first interface section and the second interface section are respectively screwed to the main body section, and the main body section has a built-in pressure and temperature component, wherein:

[0006] The pressure and temperature assembly includes a conductive member, the conductive member includes a conductive ring portion and a conductive probe, and one end of the conductive probe extends into the first interface section;

[0007] The pressure and temperature assembly also includes a sensing member, which includes a force-bearing portion, a force-bearing sheet, a strain gauge and a fixed sheet, one end of the force-bearing portion abuts against the conductive annular portion, the other end of the force-bearing portion abuts against the force-bearing sheet, one end of the strain gauge abuts against the force-bearing sheet, and the other end of the force-bearing sheet abuts against the fixed sheet;

[0008] The pressure and temperature component further includes a circuit structure, which includes a circuit board and a temperature sensing sheet. The temperature sensing sheet is attached to the conduction ring portion. The strain gauge is electrically connected to the circuit board, and the temperature sensing sheet is electrically connected to the circuit board.

[0009] As a preferred technical solution of the above technical solution, the main body section further includes an outer sheath and an inner sheath. The inner sheath is disposed inside the outer sheath. The pressure and temperature component is partially disposed inside the inner sheath, and there is a gap between the outer sheath and the inner sheath.

[0010] As a preferred technical solution of the above technical solution, the conduction member further includes a plurality of conduction connecting rods. The conduction probe and the conduction connecting rods are both located on the same side of the conduction ring portion. The conduction probe is fixedly connected to the centripetal ends of a plurality of conduction connecting rods at the same time, and the distal ends of the plurality of conduction connecting rods are respectively fixedly connected to the conduction ring portion.

[0011] As a preferred technical solution of the above technical solution, the circuit structure further includes an output line, and the output line is electrically connected to the circuit board.

[0012] As a preferred technical solution of the above technical solution, the circuit structure further includes an output sheet, and the output sheet is electrically connected to the output line. The output sheet extends into the second interface section.

[0013] The integrated vehicle pressure and temperature sensor disclosed by the present utility model has the following beneficial effects:

[0014] 1. Liquids such as engine oil only enter the first interface section and interact with the conduction probe and the conduction connecting rods, and further act on the conduction ring portion, but the liquids such as engine oil do not come into contact with the sensing member, avoiding leakage of the liquids such as engine oil.

[0015] 2. The conduction probe is in full contact with the liquids such as engine oil, so that the acting force of the liquids such as engine oil is fully conducted to the conduction ring portion, causing the conduction member to generate an acting force for compressing the sensing member. Description of the Drawings

[0016] Figure 1 is the front view of the present application.

[0017] Figure 2 is the side view of the present application.

[0018] Figure 3 is the perspective view of the present application.

[0019] Figure 4 is in Figure 3 the perspective view after hiding the outer sheath on the basis of

[0020] Figure 5 is in Figure 4 the perspective view after hiding the inner sheath on the basis of

[0021] Figure 6It is a perspective three-dimensional view of the pressure and temperature component of the present application.

[0022] Figure 7 It is a perspective three-dimensional view of another perspective of the pressure and temperature component of the present application.

[0023] Figure 8 is Figure 6 The partial enlarged view of area A in

[0024] The reference numerals include: 100 - the first interface section; 200 - the second interface section; 300 - the main body section; 310 - the outer sheath; 320 - the inner sheath; 400 - the pressure and temperature component; 410 - the conduction member; 411 - the conduction ring portion; 412 - the conduction probe; 413 - the conduction connecting rod; 420 - the sensing member; 421 - the force-receiving portion; 422 - the force-receiving piece; 423 - the strain gauge; 424 - the fixing piece; 430 - the circuit structure; 431 - the circuit board; 432 - the temperature-sensing piece; 433 - the output line; 433 - the output piece. Detailed implementation manners

[0025] The present utility model discloses a vehicle-mounted integrated pressure and temperature sensor. Below, in combination with a preferred embodiment (Embodiment 1), referring to the Figures 1-8 of the drawings, the detailed implementation manners of the present utility model will be further described.

[0026] Referring to the Figures 1 to 8 , Figures 1 to 3 respectively show the vehicle-mounted integrated pressure and temperature sensors from different perspectives, Figure 4 and Figure 5 respectively show the internal structures of the vehicle-mounted integrated pressure and temperature sensors, Figure 6 and Figure 7 respectively show the pressure and temperature components from different perspectives, Figure 8 shows the partial structure of the pressure and temperature component.

[0027] Embodiment 1 (The first interface section 100 and the second interface section 200 are respectively screwed to the main body section 300).

[0028] Preferably, a vehicle pressure and temperature integrated sensor includes a first interface section 100, a second interface section 200, and a main body section 300. The first interface section 100 and the second interface section 200 are respectively located on both sides of the main body section 300. The first interface section 100 and the second interface section 200 are respectively screwed to the main body section 300. A pressure and temperature component 400 is built into the main body section 300. The first interface section 100 is externally connected to a vehicle pipeline (not shown in the figure) through which liquids such as engine oil pass, so that liquids such as engine oil only enter the first interface section 100 and interact with the conduction probe 412 and the conduction connecting rod 413, and then further act on the conduction ring portion 411. However, liquids such as engine oil will not come into contact with the sensing element 420, avoiding leakage of liquids such as engine oil. The second interface section 200 is externally connected to a vehicle circuit. Wherein:

[0029] The pressure and temperature component 400 includes a conduction member 410. The conduction member 410 includes a conduction ring portion 411 and a conduction probe 412. The conduction probe 412 acts on the conduction ring portion 411. One end of the conduction probe 412 extends into the first interface section 100, so that the conduction probe 412 is in full contact with liquids such as engine oil, and the acting force of liquids such as engine oil is fully conducted to the conduction ring portion 411, so that the conduction member 410 generates a force for compressing the sensing element 420;

[0030] The pressure and temperature component 400 further includes a sensing element 420. The sensing element 420 includes a force receiving portion 421, a force receiving piece 422, a strain gauge 423, and a fixing piece 424. One end of the force receiving portion 421 abuts against the conduction ring portion 411, and the other end of the force receiving portion 421 abuts against the force receiving piece 422. One end of the strain gauge 423 abuts against the force receiving piece 422, and the other end of the force receiving piece 423 abuts against the fixing piece 424. When the fixing piece 424 keeps its position fixed, the strain gauge 423 deforms due to the acting force of the conduction member 410, and then the resistance value of the strain gauge 423 is changed;

[0031] The pressure and temperature component 400 further includes a circuit structure 430. The circuit structure 430 includes a circuit board 431 and a temperature sensing piece 432. The temperature sensing piece 432 is attached to the conduction ring portion 411. The temperature sensing piece 432 changes its resistance value due to the temperature conducted by the conduction member 410. The strain gauge 431 is electrically connected to the circuit board 431, and the temperature sensing piece 432 is electrically connected to the circuit board 431, so that the circuit board 431 shows relevant information of the pressure value and the temperature value according to the change of the resistance value of the strain gauge 423 and the change of the resistance value of the temperature sensing piece 432 respectively.

[0032] Among them, the main body section 300 further includes an outer sheath 310 and an inner sheath 320. The inner sheath 320 is disposed inside the outer sheath 310, and the pressure and temperature assembly 400 is partially disposed inside the inner sheath 320. There is a gap between the outer sheath 310 and the inner sheath 320, so that external interference is shielded as much as possible to ensure the continuous and stable operation of the pressure and temperature assembly 400.

[0033] Among them, the conduction member 410 further includes a plurality of conduction link rods 413. The conduction probe 412 and the conduction link rods 413 are both located on the same side of the conduction ring portion 411. The conduction probe 412 is fixedly connected to the centripetal ends of a plurality of conduction link rods 413 at the same time, and the distal ends of the plurality of conduction link rods 413 are respectively fixedly connected to the conduction ring portion 411.

[0034] Among them, the circuit structure 430 further includes an output line 433, and the output line 433 is electrically connected to the circuit board 431.

[0035] Among them, the circuit structure 430 further includes an output piece 434. The output piece 434 is electrically connected to the output line 433, and the output piece 434 extends into the second interface section 200.

[0036] Embodiment 2 (The first interface section 100 and the second interface section 200 are integrally formed with the main body section 300 respectively).

[0037] Preferably, the vehicle pressure and temperature integrated sensor includes a first interface section 100, a second interface section 200, and a main body section 300. The first interface section 100 and the second interface section 200 are respectively located on both sides of the main body section 300. The first interface section 100 and the second interface section 200 are integrally formed with the main body section 300 respectively. The main body section 300 is internally provided with a pressure and temperature assembly 400. The first interface section 100 is externally connected to a vehicle-mounted pipeline (not shown in the figure) through which liquids such as engine oil pass, so that liquids such as engine oil only enter the first interface section 100 and interact with the conduction probe 412 and the conduction link rods 413, and then further act on the conduction ring portion 411. However, liquids such as engine oil do not come into contact with the sensing member 420, avoiding leakage of liquids such as engine oil. The second interface section 200 is externally connected to a vehicle-mounted line, where:

[0038] The pressure and temperature assembly 400 includes a conduction member 410. The conduction member 410 includes a conduction ring portion 411 and a conduction probe 412. The conduction probe 412 acts on the conduction ring portion 411. One end of the conduction probe 412 extends into the first interface section 100, so that the conduction probe 412 is in full contact with liquids such as engine oil, and the acting force of liquids such as engine oil is fully conducted to the conduction ring portion 411, so that the conduction member 410 generates a force to compress the sensing member 420;

[0039] The pressure and temperature component 400 further includes a sensing element 420. The sensing element 420 includes a force-receiving part 421, a force-receiving piece 422, a strain gauge 423, and a fixing piece 424. One end of the force-receiving part 421 abuts against the conduction ring part 411, and the other end of the force-receiving part 421 abuts against the force-receiving piece 422. One end of the strain gauge 423 abuts against the force-receiving piece 422, and the other end of the force-receiving piece 423 abuts against the fixing piece 424. When the fixing piece 424 keeps its position fixed, the strain gauge 423 deforms due to the acting force of the conduction part 410, thereby changing the resistance value of the strain gauge 423.

[0040] The pressure and temperature component 400 further includes a circuit structure 430. The circuit structure 430 includes a circuit board 431 and a temperature-sensing piece 432. The temperature-sensing piece 432 is attached to the conduction ring part 411. The temperature-sensing piece 432 changes its resistance value due to the temperature conducted by the conduction part 410. The strain gauge 431 is electrically connected to the circuit board 431, and the temperature-sensing piece 432 is electrically connected to the circuit board 431. Thus, the circuit board 431 shows the relevant information of the pressure value and the temperature value respectively according to the change in the resistance value of the strain gauge 423 and the change in the resistance value of the temperature-sensing piece 432.

[0041] Wherein, the main body section 300 further includes an outer sheath 310 and an inner sheath 320. The inner sheath 320 is disposed inside the outer sheath 310. The pressure and temperature component 400 is partially disposed inside the inner sheath 320. There is a gap between the outer sheath 310 and the inner sheath 320, so that external interference is shielded as much as possible to ensure the continuous and stable operation of the pressure and temperature component 400.

[0042] Wherein, the conduction part 410 further includes a plurality of conduction connecting rods 413. The conduction probe 412 and the conduction connecting rods 413 are both located on the same side of the conduction ring part 411. The conduction probe 412 is fixedly connected to the centripetal ends of a plurality of conduction connecting rods 413 at the same time, and the distal ends of the plurality of conduction connecting rods 413 are respectively fixedly connected to the conduction ring part 411.

[0043] Wherein, the circuit structure 430 further includes an output line 433. The output line 433 is electrically connected to the circuit board 431.

[0044] Wherein, the circuit structure 430 further includes an output piece 434. The output piece 434 is electrically connected to the output line 433, and the output piece 434 extends into the second interface section 200.

[0045] It is worth mentioning that the technical features such as the temperature conversion circuit and the pressure conversion circuit of the circuit board 431 involved in the patent application of the present utility model should be regarded as the prior art. For the specific structures, working principles, and possible control methods and spatial arrangement methods of these technical features, the conventional selections in the art can be adopted, and they should not be regarded as the inventive points of the patent of the present utility model. The patent of the present utility model will not be further specifically elaborated.

[0046] For those skilled in the art, it is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A vehicle pressure and temperature integrated sensor, comprising a first interface section, a second interface section and a main body section, wherein the first interface section and the second interface section are respectively located on both sides of the main body section, and the first interface section and the second interface section are respectively screwed to the main body section, characterized in that: The main section has built-in pressure and temperature components, including: The pressure and temperature assembly includes a conductive member, the conductive member includes a conductive ring portion and a conductive probe, and one end of the conductive probe extends into the first interface section; The pressure and temperature assembly also includes a sensing member, which includes a force-bearing portion, a force-bearing sheet, a strain gauge and a fixed sheet, one end of the force-bearing portion abuts against the conductive annular portion, the other end of the force-bearing portion abuts against the force-bearing sheet, one end of the strain gauge abuts against the force-bearing sheet, and the other end of the force-bearing sheet abuts against the fixed sheet; The pressure temperature component also includes a circuit structure, which includes a circuit board and a temperature sensing piece. The temperature sensing piece is attached to the conductive annular portion, the strain gauge is electrically connected to the circuit board, and the temperature sensing piece is electrically connected to the circuit board.

2. The vehicle pressure and temperature integrated sensor according to claim 1, characterized in that: The main body section further comprises an outer jacket and an inner jacket, wherein the inner jacket is built in the outer jacket, the pressure and temperature assembly is partially built in the inner jacket, and a gap is provided between the outer jacket and the inner jacket.

3. The vehicle pressure and temperature integrated sensor according to claim 1, characterized in that: The conductive member also includes a plurality of conductive connecting rods. The conductive probe and the conductive connecting rod are located on the same side of the conductive annular portion. The conductive probe is fixedly connected to the centripetal ends of the plurality of conductive connecting rods at the same time. The distal ends of the plurality of conductive connecting rods are fixedly connected to the conductive annular portion respectively.

4. The vehicle pressure and temperature integrated sensor according to claim 1, characterized in that: The circuit structure also includes an output circuit, which is electrically connected to the circuit board.

5. The vehicle pressure and temperature integrated sensor according to claim 4, characterized in that: The circuit structure also includes an output plate, which is electrically connected to the output circuit and extends into the second interface section.

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