Pressure sensor with liquid cooling structure

Abstract

The utility model discloses a pressure sensor with liquid cooling structure, including the casing, the inner bottom of casing is installed with the core, to realize the pressure detection to the liquid of entering to the inside of casing, the outer wall of casing is close to the top position screw joint and has the shell cover, the shell cover with the casing surrounds and forms the heat dissipation chamber, and this shell cover is integrated with liquid cooling structure, liquid cooling structure with the heat dissipation chamber adaptation is used for through the circulating flow of coolant to take away the heat of the core work time production, realizes the heat dissipation cooling of core.

Description

Technical Field

[0001] This utility model relates to the field of pressure sensor application technology, and in particular to a pressure sensor with a liquid-cooled structure. Background Technology

[0002] Pressure sensors are widely used in various fields such as industrial production and automobile manufacturing to detect pressure parameters of liquid media.

[0003] In actual operation, the sensor core, as the core detection component, continuously generates heat. If this heat cannot be dissipated in time, the core temperature will rise, affecting detection accuracy and even shortening the core's lifespan. Traditional pressure sensors mostly rely on natural heat dissipation, which has low heat dissipation efficiency and cannot meet the needs of high-load, long-term working scenarios. Therefore, this invention proposes a pressure sensor with a liquid-cooled structure. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a pressure sensor with a liquid cooling structure. By integrating the liquid cooling structure, efficient heat dissipation is achieved, ensuring the temperature stability of the core during operation, thereby improving detection accuracy and equipment lifespan.

[0005] To solve the above-mentioned technical problems, the present invention provides a pressure sensor with a liquid-cooled structure, including a housing, wherein a core is installed at the bottom inner part of the housing to detect the pressure of liquid entering the housing. A pressure ring is abutted against the top of the core, and the outer wall of the pressure ring is interference-fitted to the inner wall of the housing to achieve axial clamping and fixing of the bottom core. A shell cover is threaded onto the outer wall of the housing near the top. The shell cover and the housing enclose a heat dissipation cavity, and a liquid cooling structure is integrated on the shell cover. The liquid cooling structure is adapted to the heat dissipation cavity and is used to remove the heat generated by the core during operation through the circulation of coolant, thereby achieving heat dissipation and cooling of the core.

[0006] The present invention is further configured such that: a guide hole is provided at the bottom center of the shell, and a pressure guide groove is provided at the bottom of the core, and the guide hole and the pressure guide groove are connected.

[0007] Through the above technical solution, the liquid to be tested can enter through the guide hole at the bottom of the shell, and then directly contact the detection surface of the core through the pressure guide groove at the bottom of the core, so that the core can accurately sense the liquid pressure; at the same time, the connection structure between the guide hole and the pressure guide groove ensures the smoothness of the liquid flow path, avoids pressure detection delay or error due to flow obstruction, and ensures the real-time and accuracy of pressure detection.

[0008] The present invention is further configured such that: a sealing groove is symmetrically opened on the outer wall of the shell near the middle position, and a sealing ring is fitted inside the sealing groove.

[0009] Through the above technical solution, the sealing groove provides a stable installation position for the sealing ring. After the sealing ring is tightly fitted with the mounting surface, it can effectively block the gap between the housing and the external mounting structure, preventing the liquid to be detected or external impurities from leaking out from the gap. This not only ensures the sealing performance of the pressure sensor and avoids the detection environment from being affected by leakage, but also protects the internal components of the sensor from external impurities and extends the service life of the equipment.

[0010] The present invention is further configured such that: a protective sleeve is fixedly connected to the top center of the shell cover, and the protective sleeve is connected to the interior of the shell; a wire harness is electrically connected to the top of the core, and the wire harness passes through the interior of the protective sleeve and extends out of the protective sleeve.

[0011] Through the above technical solution, the protective sleeve provides physical protection for the wire harness running through it, which can prevent the wire harness from being pulled or worn during installation or use. At the same time, it prevents external dust, liquids, etc. from entering the shell and coming into contact with the wire harness, ensuring the stability of the connection between the wire harness and the core and the reliability of electrical performance, and ensuring that the pressure signal detected by the core can be accurately transmitted to the external receiving device through the wire harness.

[0012] The present invention is further configured such that: the top of the shell cover is symmetrically provided with connection holes near the protective sleeve, and liquid guide tubes are fixedly connected to both connection holes; the two liquid guide tubes are respectively connected to the interior of the shell through the connection holes.

[0013] Through the above technical solution, the two liquid guide pipes serve as the inlet and outlet of the coolant, respectively, and cooperate with the connection hole on the shell cover to realize the connection between the coolant and the heat dissipation cavity. After the coolant enters the heat dissipation cavity from one of the liquid guide pipes, it can fully fill the heat dissipation cavity space, exchange heat with the core and the inner wall of the shell, absorb the heat generated by the core during operation, and then flow out from the other liquid guide pipe to form a circulating heat dissipation path, which significantly improves the heat dissipation efficiency.

[0014] The present invention is further configured such that barbed grooves are provided on the outer walls of both liquid guide tubes near the port positions.

[0015] Through the above technical solution, the barbed groove at the end of the liquid guide pipe can enhance the tightness of the connection between the pipe and the liquid guide pipe when connected to the external coolant delivery pipe, preventing the pipe from falling off due to pressure changes during coolant circulation, while improving the sealing performance of the connection, avoiding coolant leakage, and ensuring the stable operation of the liquid cooling circulation system.

[0016] The beneficial effects of this utility model are as follows: 1. The pressure sensor with liquid cooling structure proposed in this utility model integrates the liquid cooling structure on the shell cover. The liquid guide tube, connecting hole and heat dissipation cavity are used to form a coolant circulation path, which can quickly remove the heat generated by the core during operation. Compared with the traditional natural heat dissipation method, the heat dissipation efficiency is greatly improved, effectively avoiding the decrease in detection accuracy caused by the core being too hot, and ensuring the accuracy and stability of pressure detection. 2. The pressure sensor with a liquid-cooled structure proposed in this utility model achieves axial fixation of the core through an interference fit of a pressure ring. Combined with the sealing and protection of the sealing ring and the protection of the wiring harness by the protective sleeve, the overall structure of the sensor is more stable, with stronger sealing performance and anti-interference ability. It can adapt to complex working environments and extend the service life of the equipment. At the same time, the connection design between the guide hole and the pressure guide groove ensures the real-time and accurate pressure detection, further improving the performance of the sensor. Attached Figure Description

[0017] Figure 1 This is a first structural diagram of a pressure sensor with a liquid-cooled structure according to the present invention; Figure 2 This is a second structural diagram of a pressure sensor with a liquid-cooled structure according to the present invention; Figure 3 This is a cross-sectional view of a pressure sensor with a liquid-cooled structure according to the present invention. Figure 4 This is an exploded view of a pressure sensor with a liquid-cooled structure according to the present invention.

[0018] In the diagram: 1. Shell; 11. Guide hole; 12. Sealing groove; 13. Sealing ring; 2. Core; 21. Pressure guide groove; 22. Wiring harness; 3. Pressure ring; 4. Shell cover; 41. Protective sleeve; 42. Connection hole; 43. Liquid guide tube. Detailed Implementation

[0019] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0020] like Figures 1-4As shown, a pressure sensor with a liquid-cooled structure includes a housing 1, with a core 2 installed at the bottom of the housing 1 to detect the pressure of liquid entering the housing 1. A guide hole 11 is provided at the center of the bottom of the housing 1, and a pressure-guiding groove 21 is provided at the bottom of the core 2. The guide hole 11 and the pressure-guiding groove 21 are connected. The liquid to be detected can enter through the guide hole 11 at the bottom of the housing, and then directly contact the detection surface of the core through the pressure-guiding groove 21 at the bottom of the core, enabling the core to accurately sense the liquid pressure. At the same time, the connection structure between the guide hole and the pressure-guiding groove ensures the smoothness of the liquid flow path, avoiding pressure detection delay or error due to flow obstruction, and ensuring the real-time performance and accuracy of pressure detection. A sealing groove 12 is symmetrically provided on the outer wall of the housing 1 near the middle position, and a sealing ring 13 is fitted inside the sealing groove 12. The sealing groove 12 provides a stable installation position for the sealing ring 13. After the sealing ring 13 is tightly fitted with the mounting surface, it can effectively block the gap between the housing 1 and the external mounting structure, preventing the liquid to be detected or external impurities from leaking from the gap. This not only ensures the sealing performance of the pressure sensor and avoids the detection environment from being affected by leakage, but also protects the internal components of the sensor from external impurities and extends the service life of the equipment. A pressure ring 3 is provided at the top of the core 2, and the outer wall of the pressure ring 3 is interference-fitted to the inner wall of the housing 1 to achieve axial clamping and fixing of the bottom core 2.

[0021] like Figure 3 As shown, a shell cover 4 is threaded onto the outer wall of the shell 1 near the top. The shell cover 4 and the shell 1 enclose a heat dissipation cavity, and the shell cover 4 integrates a liquid cooling structure. The liquid cooling structure and the heat dissipation cavity are adapted to remove the heat generated by the core 2 during operation through the circulation of coolant, thereby achieving heat dissipation and cooling of the core 2. A protective sleeve 41 is fixedly connected to the top center of the cover 4, and the protective sleeve 41 is connected to the inside of the housing 1. A wire harness 22 is electrically connected to the top of the core 2, and the wire harness 22 passes through the inside of the protective sleeve 41 and extends out of the protective sleeve 41. The protective sleeve 41 provides physical protection for the wire harness 22 passing through it, which can prevent the wire harness from being pulled or worn during installation or use, and at the same time prevent external dust, liquids, etc. from entering the inside of the housing and contacting the wire harness, ensuring the stability of the connection between the wire harness and the core 2 and the reliability of the electrical performance, and ensuring that the pressure signal detected by the core can be accurately transmitted to the external receiving device through the wire harness. The top of the cover 4 is symmetrically provided with connection holes 42 near the protective sleeve 41, and liquid guide tubes 43 are fixedly connected to both connection holes 42. The two liquid guide tubes 43 are respectively connected to the interior of the housing 1 through the connection holes 42. The two liquid guide tubes 43 serve as the inlet and outlet of the coolant, respectively. They cooperate with the connection holes 42 on the cover 4 to realize the communication between the coolant and the heat dissipation cavity. After the coolant enters the heat dissipation cavity from one of the liquid guide tubes, it can fully fill the heat dissipation cavity space, exchange heat with the core 2 and the inner wall of the housing 1, absorb the heat generated by the core, and then flow out from the other liquid guide tube to form a circulating heat dissipation path, which significantly improves the heat dissipation efficiency. Both liquid guide pipes 43 have barbed grooves on their outer walls near the ports. When the barbed grooves at the ports of the liquid guide pipes 43 are connected to the external coolant delivery pipes, they can enhance the tightness of the connection between the pipes and the liquid guide pipes, prevent the pipes from falling off due to pressure changes during the coolant circulation process, and improve the sealing performance of the connection parts to avoid coolant leakage and ensure the stable operation of the liquid cooling circulation system.

[0022] In use, the liquid to be detected enters the pressure-conducting groove 21 through the guide hole 11. The core 2 detects the liquid pressure in real time and transmits the signal through the wiring harness 22. Simultaneously, an external coolant delivery pipe is connected to two liquid guide pipes 43, and the barbed grooves on the outer wall of the liquid guide pipes 43 ensure a secure connection. The coolant flows in from one of the liquid guide pipes 43, enters the heat dissipation chamber through the connection hole 42, absorbs the heat generated by the core 2 during its circulation within the heat dissipation chamber, and then flows out from the other liquid guide pipe 43, completing heat exchange and achieving continuous heat dissipation and cooling of the core 2, ensuring long-term stable operation of the sensor.

[0023] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A pressure sensor with a liquid-cooled structure, comprising a housing (1), characterized in that: A core (2) is installed at the bottom of the inner part of the housing (1) to detect the pressure of the liquid entering the housing (1); A pressure ring (3) is provided at the top of the core (2), and the outer wall of the pressure ring (3) is interference-fitted to the inner wall of the housing (1) to achieve axial clamping and fixing of the bottom core (2). The outer wall of the housing (1) is threaded with a cover (4) near the top. The cover (4) and the housing (1) enclose a heat dissipation cavity. The cover (4) is integrated with a liquid cooling structure. The liquid cooling structure is adapted to the heat dissipation cavity and is used to remove the heat generated by the core (2) during operation through the circulation of coolant, thereby achieving heat dissipation and cooling of the core (2).

2. A pressure sensor with a liquid-cooled structure according to claim 1, characterized in that: The bottom center of the housing (1) is provided with a guide hole (11), and the bottom of the core (2) is provided with a pressure guide groove (21). The guide hole (11) and the pressure guide groove (21) are connected.

3. A pressure sensor with a liquid-cooled structure according to claim 1, characterized in that: The outer wall of the housing (1) is symmetrically provided with sealing grooves (12) near the middle position, and a sealing ring (13) is fitted inside the sealing groove (12).

4. A pressure sensor with a liquid-cooled structure according to claim 1, characterized in that: A protective sleeve (41) is fixedly connected to the top center of the cover (4), and the protective sleeve (41) is connected to the inside of the shell (1). A wire harness (22) is electrically connected to the top of the core (2), and the wire harness (22) passes through the inside of the protective sleeve (41) and extends out of the protective sleeve (41).

5. A pressure sensor with a liquid-cooled structure according to claim 4, characterized in that: The top of the cover (4) is symmetrically provided with connection holes (42) near the protective sleeve (41), and liquid guide tubes (43) are fixedly connected to both connection holes (42). The two liquid guide tubes (43) are respectively connected to the interior of the shell (1) through the connection holes (42).

6. A pressure sensor with a liquid-cooled structure according to claim 5, characterized in that: Both of the liquid guide tubes (43) have barbed grooves on their outer walls near the ports.

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