Packaging structure of pressure sensor

Abstract

The utility model relates to the technical field of pressure sensors, and discloses a packaging structure of a pressure sensor, which comprises an upper packaging shell, a lower packaging shell, a sliding plate and four sliding rods, the lower surface of the upper packaging shell is tightly attached to the upper surface of the lower packaging shell, and the outer wall of the sliding plate is slidably attached to the inner wall of the lower packaging shell. The middle part of the upper surface of the sliding plate is fixedly connected with a pressing rod, and the middle part of the inner top surface of the upper packaging shell is fixedly connected with a sensor body. According to the utility model, through the design of the sliding rod and the limiting piece, the movement range of the sliding plate is limited, and excessive displacement in the pressure transmission process is effectively reduced, so that the damage risk of external vibration or impact to internal elements of the sensor is reduced; the first reset spring ensures that the sliding plate can stably return to the initial position after being subjected to external force, in addition, the upper packaging shell and the lower packaging shell are tightly attached, and the sealing ring is matched with the sealing groove, so that the sealing performance of the packaging structure is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure sensors, in particular to a packaging structure of a pressure sensor. Background Art

[0002] A pressure sensor is a device that can convert the physical pressure applied to it into a measurable electrical signal. It senses and transmits external or internal pressure information by detecting changes in pressure. Common pressure sensors are based on different working principles, such as piezoelectric effect, capacitance change, resistance change, etc., and are widely used in industrial automation, automobiles, medical care, aerospace and other fields to measure the pressure of gas or liquid to ensure the normal operation of the system and the safety of equipment. The packaging structure not only protects the sensitive components inside the sensor from the influence of the external environment, but also determines the stability, durability and applicability of the sensor. The design of the packaging structure needs to take into account the working principle and material properties of the sensor to ensure that no interference or damage to the sensor is introduced when transmitting the pressure signal. At the same time, it must provide the necessary electrical connections and mechanical support so that the sensor can work reliably in various application environments.

[0003] Traditional pressure sensors usually lack buffering protection functions during use. The surface of the pressure sensor is often easily damaged after being subjected to force, which affects the service life of the pressure sensor. In addition, some traditional packaging structures may be complex in design, making it difficult to install, repair or replace the sensor, increasing maintenance costs and time.

[0004] Therefore, those skilled in the art provide a packaging structure for a pressure sensor to solve the problems raised in the above background technology. Utility Model Content

[0005] The purpose of the present utility model is to solve the shortcomings existing in the prior art, and a packaging structure of a pressure sensor is proposed. The design of the sliding rod and the limit member limits the moving range of the sliding plate, effectively reducing the excessive displacement during the pressure transmission process, thereby reducing the risk of damage to the internal components of the sensor due to external vibration or impact. At the same time, the first return spring ensures that the sliding plate can smoothly return to the initial position after being subjected to external force. In addition, the close fit between the upper packaging shell and the lower packaging shell, and the cooperation between the sealing ring and the sealing groove ensure the sealing of the packaging structure, and prevent external environmental factors such as moisture and dust from invading the sensor body. The cooperation design of the mounting block, groove, mounting groove, sliding groove and snap block, and the use of the second return spring enhance the stability of the connection of the packaging structure and reduce looseness. The design of the snap block makes the installation and disassembly of the packaging structure more convenient, thereby improving maintenance efficiency.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] The cam is fixedly mounted on the support frame of the chassis, and the cam is secured to the upper and lower surfaces of the chassis and is adapted to engage said support members of the chassis and to engage said support members of the chassis.

[0008] Through the above technical solution, the design of the sliding rod and the limiter can limit the movement range of the sliding plate, reduce excessive displacement during pressure transmission, and thus reduce the risk of damage to the internal components of the sensor due to external vibration or impact. The function of the first return spring is to enable the sliding plate to return smoothly to its initial position after being subjected to external force.

[0009] The top end of the fixing plate is fixedly mounted on the support frame, and the fixing plate is fixedly mounted on the support frame of the second fixing plate, the fixing plate being fixedly mounted on the support frame of the second fixing plate.

[0010] Through the above technical solution, the tight fit of the upper packaging shell and the lower packaging shell, and the cooperation between the sealing ring and the sealing groove, ensure the sealing of the packaging structure, effectively preventing the external environmental factors from invading the sensor body. In addition, the cooperation design of the mounting block, groove, mounting groove, sliding groove and snap block, as well as the use of the second return spring, enhance the connection stability between the upper packaging shell and the lower packaging shell, reduce the looseness of the connection, and the design of the snap block allows the packaging structure to be installed or disassembled by simple snapping and releasing actions, thereby improving the convenience of installation and maintenance.

[0011] Furthermore, a sealing ring is fixedly connected to the middle of the lower surface of the upper packaging shell, and a sealing groove is opened in the middle of the upper surface of the lower packaging shell, and the outer wall of the sealing ring is tightly fitted with the inner wall of the sealing groove;

[0012] Through the above technical solution, the tight fit between the upper packaging shell and the lower packaging shell, and the cooperation between the sealing ring and the sealing groove, ensure the sealing of the packaging structure, and effectively prevent the external environmental factors from invading the sensor body.

[0013] Furthermore, a button is fixedly connected to one side of the clamping block away from the center of the lower end of the mounting block;

[0014] With the above technical solution, the clamping and releasing of the clamping block are facilitated by pressing a button, thereby realizing rapid installation or removal of the packaging structure.

[0015] Furthermore, an electrical connector is fixedly connected to the middle portion of the upper surface of the upper packaging shell;

[0016] Through the above technical solution, the sensor body is connected to the external circuit through the electrical connector.

[0017] Furthermore, the middle parts of both sides of the lower surface of the sliding plate are fixedly connected with connectors;

[0018] Through the above technical solution, the connector is used to directly contact the object to be pressure-measured.

[0019] Furthermore, the outer walls of the clamping blocks are slidably fitted with the inner walls of the sliding grooves;

[0020] Through the above technical solution and this design, the sliding of the clamping block in the sliding groove is made more stable.

[0021] The utility model has the following beneficial effects:

[0022] 1. The packaging structure of a pressure sensor proposed in the present invention can limit the movement range of the sliding plate through the design of the sliding rod and the limiter, thereby reducing excessive displacement during pressure transmission, thereby reducing the risk of damage to the internal components of the sensor due to external vibration or impact. The function of the first return spring is to enable the sliding plate to return smoothly to its initial position after being subjected to external force.

[0023] 2. The packaging structure of a pressure sensor proposed in the present invention ensures the sealing of the packaging structure through the close fit of the upper packaging shell and the lower packaging shell, and the cooperation of the sealing ring and the sealing groove, effectively preventing the external environmental factors from invading the sensor body. In addition, the coordinated design of the mounting block, groove, mounting groove, sliding groove and snap block, and the use of the second reset spring enhance the connection stability between the upper packaging shell and the lower packaging shell, reduce the looseness of the connection, and the design of the snap block allows the packaging structure to be installed or disassembled by simple snapping and releasing actions, thereby improving the convenience of installation and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is an axonometric diagram of the packaging structure of a pressure sensor proposed in the present utility model;

[0025] Figure 2 This is a cross-sectional view of a packaging structure of a pressure sensor proposed in the present invention;

[0026] Figure 3 This is an exploded view of the packaging structure of a pressure sensor proposed in the present utility model;

[0027] Figure 4 This is a partial structural axonometric diagram of a packaging structure of a pressure sensor proposed in the present invention;

[0028] Figure 5 This is a partial structural explosion diagram of the packaging structure of a pressure sensor proposed in the present invention.

[0029] Legend:

[0030] 1. Upper packaging shell; 101. Electrical connector; 102. Sealing ring; 2. Lower packaging shell; 201. Connector; 202. Sealing groove; 203. Connecting block; 204. Snap-fit ​​groove; 3. Sliding plate; 301. Press rod; 302. Limiting member; 303. First return spring; 304. Sliding rod; 4. Sensor body; 5. Mounting block; 501. Groove; 502. Mounting groove; 503. Sliding groove; 504. Snap-fit ​​block; 505. Second return spring; 506. Button. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the specific embodiments of the present invention to clearly and completely describe the technical solutions in the specific embodiments of the present invention. Obviously, the specific embodiments described are only part of the specific embodiments of the present invention, not all of the specific embodiments. Based on the specific embodiments of the present invention, all other specific embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] Reference Figure 1 and Figure 2 The utility model provides a specific embodiment: a packaging structure of a pressure sensor, including an upper packaging shell 1, a lower packaging shell 2, a sliding plate 3 and four sliding rods 304, the lower surface of the upper packaging shell 1 is tightly fitted with the upper surface of the lower packaging shell 2, the outer wall of the sliding plate 3 is slidingly fitted with the inner wall of the lower packaging shell 2, the middle part of the upper surface of the sliding plate 3 is fixedly connected with a pressure rod 301, the middle part of the inner top surface of the upper packaging shell 1 is fixedly connected with a sensor body 4, the upper surface of the pressure rod 301 is tightly fitted with the middle part of the lower surface of the sensor body 4, the four corners of the upper surface of the sliding plate 3 and the four corners of the inner top surface of the upper packaging shell 1 are fixedly connected with limiting members 302, The inner wall of the positioning member 302 at one end away from the center of the upper end of the lower packaging shell 2 is fixedly connected to the first return spring 303, and the upper and lower ends of the outer wall of the sliding rod 304 are respectively fixedly connected to the adjacent two ends of the first return spring 303, and the outer wall of the sliding rod 304 slides in contact with the inner walls of the adjacent two ends of the limiting member 302. The design of the sliding rod 304 and the limiting member 302 can limit the movement range of the sliding plate 3, reduce excessive displacement during pressure transmission, and thereby reduce the risk of damage to the internal components of the sensor due to external vibration or impact. The function of the first return spring 303 is to enable the sliding plate 3 to return to its initial position smoothly after being subjected to external force.

[0033] Reference Figure 3 、 Figure 4 and Figure 5The middle parts of the front and rear end outer walls of the upper packaging shell 1 are hingedly connected to the mounting block 5 by hinges. Grooves 501 are provided on both sides of the lower part of the front end outer wall of the mounting block 5, and mounting grooves 502 are provided on both sides of the middle part of the front end outer wall of the mounting block 5. A sliding groove 503 is provided on the inner wall of the mounting groove 502 away from the center of the lower end of the mounting block 5. The upper part of the sliding groove 503 away from the center of the lower end of the mounting block 5 passes through the middle of the groove 501. A clamping block 504 is provided inside the sliding groove 503. One side of the lower end of the clamping block 504 away from the center of the lower end of the mounting block 5 passes through the mounting groove 502 to the two sides of the lower end of the mounting block 5. Two second return springs 505 are fixedly connected to one side of the clamping block 504 near the center of the lower end of the mounting block 5. One side of the second return spring 505 near the center of the lower end of the mounting block 5 is fixedly connected to the inner wall of the mounting groove 502. Both sides of the middle part of the front end outer wall of the lower packaging shell 2 are fixedly connected There is a connecting block 203, and the outer walls of the connecting block 203 are provided with a snap-in groove 204. The outer walls of the connecting block 203 are tightly fitted with the inner walls of the groove 501, and the outer walls of the rear end of the snap-in block 504 away from the center of the upper end of the mounting block 5 are snap-fitted with the inner walls of the snap-in groove 204. The tight fit between the upper packaging shell 1 and the lower packaging shell 2, and the cooperation between the sealing ring 102 and the sealing groove 202 ensure the sealing of the packaging structure, effectively preventing external environmental factors such as moisture and dust from invading the sensor body 4. In addition, the cooperation design of the mounting block 5, the groove 501, the mounting groove 502, the sliding groove 503 and the snap-in block 504, and the use of the second return spring 505 enhance the connection stability between the upper packaging shell 1 and the lower packaging shell 2, and reduce the looseness of the connection. The design of the snap-in block 504 allows the packaging structure to be installed or disassembled by simple snap-in and release actions, thereby improving the convenience of installation and maintenance.

[0034] Reference Figure 2 and Figure 3, a sealing ring 102 is fixedly connected to the middle of the lower surface of the upper packaging shell 1, and a sealing groove 202 is opened in the middle of the upper surface of the lower packaging shell 2. The outer wall of the sealing ring 102 is tightly fitted with the inner wall of the sealing groove 202. Through the tight fit between the upper packaging shell 1 and the lower packaging shell 2, and the cooperation between the sealing ring 102 and the sealing groove 202, the sealing of the packaging structure is ensured, effectively preventing the external environmental factors such as moisture, dust, etc. from invading the sensor body 4. A button 506 is fixedly connected to the side of the clamping block 504 away from the center of the lower end of the mounting block 5. By pressing the button 506 facilitates the engagement and release of the snap-in block 504, thereby achieving quick installation or disassembly of the packaging structure. An electrical connector 101 is fixedly connected to the middle of the upper surface of the upper packaging shell 1, and the electrical connector 101 is used to connect the sensor body 4 to the external circuit. The middle of both sides of the lower surface of the sliding plate 3 are fixedly connected to connectors 201, and the connectors 201 are used to directly contact the object to be pressure-measured. The outer walls of the snap-in block 504 are slidably fitted with the inner walls of the sliding groove 503. This design makes the sliding of the snap-in block 504 in the sliding groove 503 more stable.

[0035] Working principle: When external pressure acts on the sliding plate 3, the sliding plate 3 transmits the pressure to the sensor body 4 fixed on the top surface of the upper packaging shell 1 through the pressure rod 301 on its upper surface. At the same time, the sliding plate 3 can slide along the inner wall of the lower packaging shell 2 under the guidance of the sliding rod 304 under the restriction of the limit member 302 and the first return spring 303. This design not only limits the movement range of the sliding plate 3, but also enables the sliding plate 3 to return to its initial position smoothly after the pressure is removed. The upper packaging shell 1 and the lower packaging shell 2 are tightly matched through the sealing ring 102 and the sealing groove 202, ensuring the packaging structure. The sealing of the structure is improved to prevent the external environmental factors from invading the sensor body 4. In addition, through the coordinated design of the mounting block 5, the groove 501, the mounting groove 502, the sliding groove 503 and the clamping block 504, and the use of the second reset spring 505, the overall stability of the packaging structure is enhanced and the looseness of the connection is reduced. The button 506 on the clamping block 504 facilitates the rapid installation or disassembly of the packaging structure, and the electrical connector 101 on the upper packaging shell 1 is used to connect the sensor body 4 to the external circuit, and the connector 201 on the lower surface of the sliding plate 3 is used to directly contact the object to be pressure measured.

[0036] Finally, it should be noted that the above is only a preferred specific implementation method of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned specific implementation methods, those skilled in the art can still modify the technical solutions described in the aforementioned specific implementation methods or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A packaging structure for a pressure sensor, comprising an upper packaging shell (1), a lower packaging shell (2), a sliding plate (3) and four sliding rods (304), characterized in that: The lower surface of the upper packaging shell (1) is tightly fitted with the upper surface of the lower packaging shell (2), the outer wall of the sliding plate (3) is slidingly fitted with the inner wall of the lower packaging shell (2), the middle of the upper surface of the sliding plate (3) is fixedly connected with a pressure rod (301), the middle of the inner top surface of the upper packaging shell (1) is fixedly connected with a sensor body (4), the upper surface of the pressure rod (301) is tightly fitted with the middle of the lower surface of the sensor body (4), and the four upper surfaces of the sliding plate (3) are fixedly connected with the pressure rod (301). The corners and the four corners of the inner top surface of the upper packaging shell (1) are fixedly connected to the limiting members (302), the inner wall of the limiting member (302) away from the center of the upper end of the lower packaging shell (2) is fixedly connected to the first return spring (303), the upper end and the lower end of the outer wall of the sliding rod (304) are respectively fixedly connected to the adjacent two ends of the first return spring (303), and the outer wall of the sliding rod (304) is slidably fitted with the inner walls of the adjacent two ends of the limiting member (302).

2. The packaging structure of a pressure sensor according to claim 1, characterized in that: The middle parts of the front and rear end outer walls of the upper packaging shell (1) are hingedly connected to the mounting block (5) through hinges, and grooves (501) are provided on both sides of the lower part of the front end outer wall of the mounting block (5), and mounting grooves (502) are provided on both sides of the middle part of the front end outer wall of the mounting block (5), and a sliding groove (503) is provided on the inner wall of the mounting groove (502) away from the center of the lower end of the mounting block (5), and the upper part of the sliding groove (503) away from the center of the lower end of the mounting block (5) passes through the middle part of the groove (501), and a clamping block (504) is provided inside the sliding groove (503), and the lower end of the clamping block (504) away from the center of the lower end of the mounting block (5) passes through the mounting groove (502). ) to both sides of the lower end of the mounting block (5), the clamping block (504) is fixedly connected to one side of the center of the lower end of the mounting block (5) with two second return springs (505), the second return springs (505) are fixedly connected to the inner wall of the mounting groove (502) on one side of the center of the lower end of the mounting block (5), the connecting blocks (203) are fixedly connected to both sides of the middle of the outer wall of the front end of the lower packaging shell (2), the outer walls of the connecting blocks (203) are provided with clamping grooves (204), the outer walls of the connecting blocks (203) are tightly fitted with the inner wall of the groove (501), and the outer wall of the rear end of the clamping block (504) away from the center of the upper end of the mounting block (5) is clamped with the inner wall of the clamping groove (204).

3. The packaging structure of a pressure sensor according to claim 1, wherein: A sealing ring (102) is fixedly connected to the middle of the lower surface of the upper packaging shell (1), a sealing groove (202) is opened in the middle of the upper surface of the lower packaging shell (2), and the outer wall of the sealing ring (102) is tightly fitted with the inner wall of the sealing groove (202).

4. The packaging structure of a pressure sensor according to claim 2, wherein: A button (506) is fixedly connected to one side of the clamping block (504) away from the center of the lower end of the mounting block (5).

5. The packaging structure of a pressure sensor according to claim 1, wherein: An electrical connector (101) is fixedly connected to the middle portion of the upper surface of the upper packaging shell (1).

6. The packaging structure of a pressure sensor according to claim 1, characterized in that: Connecting heads (201) are fixedly connected to the middle portions of both sides of the lower surface of the sliding plate (3).

7. The packaging structure of a pressure sensor according to claim 2, characterized in that: The outer walls of the clamping blocks (504) are slidably fitted with the inner walls of the sliding grooves (503).

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