CN210005048U - immersion type pressure and temperature combined sensor - Google Patents

Abstract

The utility model relates to an immersive pressure temperature combination sensor, immersive pressure temperature combination sensor soaks completely in detecting the medium, which comprises an outer shell, installation pressure detection module in the shell, set up the through-hole that makes pressure detection module and external intercommunication on the shell, fixed connection temperature detecting element on the shell outer wall outside, immersive pressure temperature combination sensor, the temperature detects accurately, and response speed is fast.

Description

immersion type pressure and temperature combined sensor

Technical Field

The utility model relates to a sensor especially relates to immersive pressure temperature combination sensors.

Background

The temperature pressure sensor is a pressure temperature device for detecting a medium, and a traditional temperature pressure sensor, the temperature detection device or a heat conducting fin needs to penetrate through a shell to extend into the medium, so that the structure is complex, and the production is troublesome, in addition, the company applies No. 2019, 05 and 28 as ' pressure temperature combined sensors', the application No. 201910448788.5 provides a sensor, the temperature detection module is integrated on the pressure detection module, although the problems of complex structure and production are solved, the temperature detection module is not in direct contact with the medium, the temperature detection response speed is slow, the loss of the medium temperature transmitted to the temperature detection module is reduced, and the temperature detection is inaccurate.

SUMMERY OF THE UTILITY MODEL

The applicant has made research and improvement aiming at the above disadvantages and provides immersive pressure-temperature combination sensors.

The utility model discloses the technical scheme who adopts as follows:

immersion type pressure and temperature combination sensor, which is completely immersed in the detection medium, comprises a shell, a pressure detection module is arranged in the shell, a through hole for communicating the pressure detection module with the outside is arranged on the shell, and a temperature detection unit is fixedly connected on the outer side of the outer wall of the shell.

improvement of the technical proposal:

the shell comprises a lower shell and an upper shell, the pressure detection module is installed between the lower shell and the upper shell, and a sealing component is arranged between the lower shell and the upper shell.

The lower end of the upper shell is provided with an installation cavity for installing the pressure detection module, and the lower shell is positioned at the lower end of the pressure detection module and is provided with a through hole for communicating the pressure detection module with the outside.

The sealing component is a sealing O-shaped ring, and the sealing O-shaped ring is arranged in a sealing groove formed in the upper end of the lower shell.

The temperature detection unit is a thermistor.

The temperature detection unit is a PCB integrated with a temperature detection function.

The utility model has the advantages as follows: the immersion type pressure and temperature combined sensor is soaked in a medium, the temperature detection unit is fixed on the outer wall of the upper shell, the temperature detection unit is directly arranged in the detection medium, the temperature detection is accurate, and the response speed is high.

Drawings

Fig. 1 is a cross-sectional view of the immersion type pressure and temperature combination sensor provided by the present invention.

In the figure: 1. a lower housing; 11. a through hole; 12. a sealing groove; 2. an upper housing; 21. a mounting cavity; 3. a pressure detection module; 4. a temperature detection unit; 5. and sealing the O-shaped ring.

Detailed Description

The following describes a specific embodiment of the present embodiment with reference to the drawings.

As shown in fig. 1, the immersive pressure and temperature combination sensor of the present embodiment is completely immersed in a detection medium, and the immersive pressure and temperature combination sensor includes a lower housing 1 and an upper housing 2, a lower end of the upper housing 2 is installed at an upper end of the lower housing 1, and a lower end of the upper housing 2 is provided with an installation cavity 21, a pressure detection module 3 is encapsulated in the installation cavity 21, a sealing member is disposed between the pressure detection module 3 and the lower housing 1, the sealing member is a sealing O-ring 5, and the sealing O-ring 5 is disposed in a sealing groove 12 formed in the lower housing 1, the sealing O-ring 5 is compressed on the sealing groove 12 through the pressure detection module 3, so as to seal the lower housing 1 and the upper housing 2, a through hole 11 communicating with an outer side is formed at a lower end of the pressure detection module 3 of the lower housing 1, and a temperature detection unit 4 is fixedly connected to.

The temperature detection unit 4 is a thermistor or a PCB board integrated with a temperature detection function.

The upper housing 2 is made of plastic.

The lower case 1 may be made of metal or plastic.

When the immersive pressure and temperature combination sensor of the embodiment is used, the immersive pressure and temperature combination sensor is fixed in a detection medium through a fixing piece, the temperature detection unit 4 connected to the outer side of the outer wall of the upper shell 2 is directly contacted with the medium, the temperature of the medium can be directly detected, the medium enters the immersive pressure and temperature combination sensor from the through hole 11, the pressure of the medium can be detected through the pressure detection module 3, and the temperature and pressure detection of the medium is realized.

The above description is for the purpose of explanation and not limitation of the invention, which is defined in the claims, and any modifications may be made without departing from the basic structure of the invention.

Claims (6)

1. The immersion type pressure and temperature combined sensor is characterized by comprising a shell, wherein a pressure detection module (3) is installed in the shell, a through hole (11) enabling the pressure detection module (3) to be communicated with the outside is formed in the shell, and a temperature detection unit (4) is fixedly connected to the outer side of the outer wall of the shell.
2. 2. The immersive combination pressure and temperature sensor of claim 1, wherein: the shell comprises a lower shell (1) and an upper shell (2), the pressure detection module (3) is installed between the lower shell (1) and the upper shell (2), and a sealing part is arranged between the lower shell (1) and the upper shell (2).
3. 3. The immersive combination pressure and temperature sensor of claim 2, wherein: the lower end of the upper shell (2) is provided with a mounting cavity (21) for mounting the pressure detection module (3), and the lower shell is positioned at the lower end of the pressure detection module (3) and is provided with a through hole (11) for communicating the pressure detection module (3) with the outside.
4. 4. The immersive combination pressure and temperature sensor of claim 2, wherein: the sealing component is a sealing O-shaped ring (5), and the sealing O-shaped ring (5) is arranged in a sealing groove (12) formed in the upper end of the lower shell (1).
5. 5. The immersive combination pressure and temperature sensor of claim 1, wherein: the temperature detection unit (4) is a thermistor.
6. 6. The immersive combination pressure and temperature sensor of claim 1, wherein: the temperature detection unit (4) is a PCB integrated with a temperature detection function.

Images