CN220568176U

CN220568176U - Automobile temperature and pressure integrated sensor structure

Info

Publication number: CN220568176U
Application number: CN202321986633.5U
Authority: CN
Inventors: 王安明; 杨云飞; 郭硕
Original assignee: Leo Electronics Nanjing Co ltd
Current assignee: Leo Electronics Nanjing Co ltd
Priority date: 2023-07-27
Filing date: 2023-07-27
Publication date: 2024-03-08
Anticipated expiration: 2033-07-27

Abstract

The utility model discloses an automobile temperature and pressure integrated sensor structure, and relates to the technical field of sensor packaging structures. The utility model comprises an electric connector, a flexible circuit board, a pressure ceramic component, an NTC module component and a metal shell, wherein the electric connector, the pressure ceramic component, the NTC module component, the flexible circuit board and the metal shell are sequentially connected, and electric connector pins are inserted and installed in the electric connector and the flexible circuit board. The edge of the NTC module component is the fixed support of the pressure ceramic core body, so that the ceramic core body can be effectively prevented from rotating in the environments of vibration, impact and the like of an automobile, the stability of the structural design is enhanced, meanwhile, the design of a temperature-pressure integrated sensor with small volume is realized, the space is saved, the area contact of the sensor is reduced, the tightness is good, the influence caused by bad contact is avoided, and the complexity of an automobile sensor monitoring system is reduced.

Description

Automobile temperature and pressure integrated sensor structure

Technical Field

The utility model relates to the technical field of sensor packaging structures, in particular to an automobile temperature and pressure integrated sensor structure.

Background

With the continuous development of automobile technology, vehicle systems are increasingly complex, and the requirements for monitoring temperature and pressure are also increasingly high. The traditional temperature and pressure sensors are mutually independent sensors, and are required to be respectively installed in an automobile system, so that the temperature sensor and the pressure sensor are relatively large in occupied space and higher in cost.

The structural design of the sensor needs to consider factors such as vibration, impact, temperature change and the like of an automobile in use, so that the reliability and stability of the sensor are ensured. The integrated design has the advantages of reducing the contact between the sensors and avoiding the sensor failure or error caused by poor connection.

The integrated sensor adopts advanced sensing technology and materials, and temperature and pressure data are collected, processed and output through an internal conditioning chip and circuit, so that on one hand, the performance and reliability of the sensor are improved, and on the other hand, the occupation of the automobile space and the complexity of the system are reduced.

Therefore, an advanced sensor technology integrating temperature and pressure is needed to solve the problems of large occupied space, high cost, multiple reliability and stability considerations, complex automobile systems and the like.

Therefore, an automobile temperature and pressure integrated sensor structure is provided.

Disclosure of Invention

The utility model aims at: in order to solve the problems in the background art, the utility model provides an automobile temperature and pressure integrated sensor structure.

The utility model adopts the following technical scheme for realizing the purposes:

the utility model provides an integrative sensor structure is pressed to car temperature, includes electrical connector, flexible circuit board, pressure ceramic subassembly, NTC module and metal casing, electrical connector and pressure ceramic subassembly, NTC module, flexible circuit board and metal casing connect gradually according to the order, electrical connector contact pin is installed in the inside grafting of electrical connector and flexible circuit board, electrical connector and flexible circuit board are the electricity through electrical connector contact pin and metallized hole and are connected the setting, flexible circuit board is the electricity through metallized hole and contact pin with pressure ceramic subassembly and is connected the setting, pressure ceramic subassembly imbeds in the NTC module, and pressure ceramic subassembly's bottom is provided with the second sealing washer, seal through the second sealing washer between pressure ceramic subassembly and the NTC module, NTC module and flexible circuit board are the electricity through the contact pin of NTC module both sides and the metallized hole of flexible circuit board and are connected the setting.

Further, the NTC module assembly comprises a first NTC pin extension needle, an NTC core body, an NTC bracket, a first NTC pin extension needle and a second NTC pin extension needle, wherein the first NTC pin extension needle and the second NTC pin extension needle are integrally injection molded, the first NTC pin extension needle and the second NTC pin extension needle are arranged in supporting walls on two sides of the NTC bracket, and extension parts at the bottoms of the first NTC pin extension needle and the second NTC pin extension needle are electrically connected with the NTC core body.

Further, the extending parts at the tops of the first NTC contact pin extending pin and the second NTC contact pin extending pin are electrically connected with the metallized holes at two sides of the flexible circuit board.

Further, the pressure ceramic component is located the top of NTC module assembly, the both sides of pressure ceramic component are provided with positioning groove, positioning groove with the supporting wall of NTC support both sides is the vertical installation of block.

Further, a first mounting groove is formed in the NTC support, and a third sealing ring is arranged in the first mounting groove.

Further, a second mounting groove is formed in the metal shell cavity, a first sealing ring is arranged in the second mounting groove, and an NTC protective cover is installed in the metal shell in a plug-in mode.

The beneficial effects of the utility model are as follows:

1. according to the utility model, the electrical connector pins are welded with the metallized holes of the flexible circuit board to fix the electrical connector pins, the flexible circuit board is made of polyimide material, has soft texture and certain toughness and also has certain strength, is convenient to bend and does not damage an internal electrical connection wire, the flexible circuit board is provided with the metallized holes and the pins on the pressure ceramic component which are connected in a welding mode, instability caused by traditional circuit board flying wire connection can be avoided in the mode, the pressure ceramic component is embedded in the NTC module component, meanwhile, the NTC module component is provided with the second sealing ring, external pollutants can be effectively prevented from penetrating into the NTC module component, the sealing performance of the structural design is enhanced, the edge of the NTC module component is a fixed support of the pressure ceramic core body, the ceramic core body can be effectively prevented from rotating in the environments of automobile vibration, impact and the like, the stability of the structural design is enhanced, meanwhile, the design of a temperature-pressure integrated sensor is small in size is realized, the space is saved, the contact of the sensor area is reduced, the sealing performance is good, the influence caused by bad contact is avoided, and the complexity of a monitoring system of the automobile sensor is reduced.

Drawings

FIG. 1 is an exploded view of the structure of the present utility model;

FIG. 2 is a schematic diagram of the inside of the NTC module assembly of the present utility model;

FIG. 3 is an internal schematic view of a portion of the structure of the present utility model;

FIG. 4 is a schematic structural view of a cross-sectional view of the overall structure of the present utility model;

reference numerals: 1. an electrical connection; 101. an electrical connector pin; 2. a first seal ring; 3. a flexible circuit board; 4. a pressure ceramic component; 5. a second seal ring; 6. an NTC module assembly; 601. a first NTC pin extension pin; 602. a second NTC pin extension pin; 603. an NTC core; 604. an NTC scaffold; 7. a third seal ring; 8. a metal housing; 9. an NTC shield.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. 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.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

In describing embodiments of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "inner", "outer", "upper", etc. are directions or positional relationships based on those shown in the drawings, or those that are conventionally put in place when the inventive product is used, are merely for convenience of description and simplification of description, and are not indicative or implying that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

As shown in fig. 1 to 4, an automobile temperature and pressure integrated sensor structure comprises an electrical connector 1, a flexible circuit board 3, a pressure ceramic component 4, an NTC module component 6 and a metal shell 8, wherein the electrical connector 1, the pressure ceramic component 4, the NTC module component 6, the flexible circuit board 3 and the metal shell 8 are sequentially connected, an electrical connector pin 101 is inserted and installed in the electrical connector 1 and the flexible circuit board 3, the electrical connector 1 and the flexible circuit board 3 are electrically connected through the electrical connector pin 101 and a metallization hole, the flexible circuit board 3 and the pressure ceramic component 4 are electrically connected through the metallization hole and the pin, the pressure ceramic component 4 is embedded into the NTC module component 6, a second sealing ring 5 is arranged at the bottom of the pressure ceramic component 4, the pressure ceramic module component 4 and the NTC module component 6 are sealed through the second sealing ring 5, and the NTC module component 6 and the flexible circuit board 3 are electrically connected through pins at two sides of the NTC module component 6 and the metallization hole of the flexible circuit board 3; specifically, the electrical connector 1 needs to be customized, can also be standard components, the fixed position of the flexible circuit board 3 is reserved at the bottom of the electrical connector 1, the electrical connector pin 101 and the metallized hole of the flexible circuit board 3 are welded together to be fixed, the flexible circuit board 3 is made of polyimide material, the electrical connector is soft in texture and has certain toughness, the electrical connector is convenient to bend and cannot damage an internal electrical connection wire, the metallized hole is reserved on the flexible circuit board 3 and the pin on the pressure ceramic component 4 are connected in a welding mode, instability caused by traditional circuit board flying wire connection can be avoided in the mode, the pressure ceramic component 4 is embedded in the NTC module component 6, meanwhile, the second sealing ring 5 is arranged in the NTC module component 6, external pollutants can be effectively prevented from penetrating into the interior to strengthen the sealing performance of the structural design, the edge of the NTC module component 6 is a fixed support of the pressure ceramic core, the ceramic core can be effectively prevented from rotating in the environments such as automobile vibration and impact, and the stability performance of the structural design is enhanced.

As shown in fig. 1 to 4, the NTC module assembly 6 includes a first NTC pin extension pin 601, an NTC core 603, an NTC bracket 604, a first NTC pin extension pin 601 and a second NTC pin extension pin 602, the first NTC pin extension pin 601 and the second NTC pin extension pin 602 are integrally injection molded, the first NTC pin extension pin 601 and the second NTC pin extension pin 602 are disposed in supporting walls at two sides of the NTC bracket 604, and an extension portion at the bottom of the first NTC pin extension pin 601 and the second NTC pin extension pin 602 is electrically connected with the NTC core 603; specifically, the NTC module assembly 6 is connected with the NTC core 603 through the second NTC pin extension pin 602, one end of the second NTC pin extension pin 602 passes through the dielectric body from two sides of the NTC module assembly 6 to expose a certain height, and then is welded and fixed with the metallized hole of the flexible circuit board 3, and the other end extends out of the dielectric and then is welded with the pin of the NTC core 603, the second NTC pin extension pin 602 is fixed in the NTC module assembly 6 in an injection molding mode, and meanwhile, the interface is coated with sealant, so that the tightness of the device is enhanced, and the risk brought by flying wire connection is reduced.

As shown in fig. 1 to 4, the extension parts at the top of the first NTC pin extension needle 601 and the second NTC pin extension needle 602 are electrically connected to the metallized holes at both sides of the flexible circuit board 3.

As shown in fig. 1 to 4, the piezoceramic assembly 4 is located at the top of the NTC module assembly 6, positioning grooves are formed on two sides of the piezoceramic assembly 4, and the positioning grooves and supporting walls on two sides of the NTC bracket 604 are vertically installed in a clamping manner.

As shown in fig. 1 to 4, the NTC support 604 is provided with a first mounting groove inside which a third sealing ring 7 is provided; specifically, the NTC module assembly 6 is embedded into the cavity of the metal casing 8, and the seal ring 7 is designed in the metal casing 8, which is also the most important seal line, so that external pollutants can be effectively blocked from penetrating under strong pressure, and meanwhile, a clamping groove is reserved in the metal casing 8 to fix the NTC module assembly 6, so that the rotation caused by factors such as impact and vibration is prevented, and measurement errors are even damaged.

As shown in fig. 1 and 4, a second mounting groove is formed in the cavity of the metal shell 8, a first sealing ring 2 is arranged in the second mounting groove, and an NTC shield 9 is inserted and mounted in the metal shell 8; specifically, the surface of the metal shell 8 is designed with a first sealing ring 2, and the first sealing ring 2 is used for preventing gas from leaking from the side edge of the metal shell 8 to the external environment, so that inaccurate measurement is caused.

To sum up: the electrical connector contact pin 101 is welded with the metallized hole of the flexible circuit board 3 to be fixed, the flexible circuit board 3 is made of polyimide material, the flexible circuit board is soft in texture and has certain toughness and certain strength, the flexible circuit board 3 is convenient to bend and cannot damage an internal electrical connection wire, the contact pin on the metallized hole and the pressure ceramic component 4 is reserved on the flexible circuit board 3 and is connected in a welding mode, instability caused by traditional circuit board flying lead connection can be avoided in the mode, the pressure ceramic component 4 is embedded in the NTC module component 6, meanwhile, the second sealing ring 5 is arranged in the NTC module component 6, external pollutants can be effectively prevented from penetrating into the interior, sealing performance of the structural design is enhanced, the edge of the NTC module component 6 is a fixed support of the pressure ceramic core, the ceramic core can be effectively prevented from rotating in environments such as automobile vibration and impact, stability of the structural design is enhanced, meanwhile, the small size design of the temperature-pressure integrated sensor is realized, the space is saved, the contact area of the sensor is reduced, bad contact is avoided, and the influence of bad contact is reduced, and the complexity of the sensor monitoring system is reduced.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made therein without departing from the spirit and scope of the utility model, which is defined by the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. An automobile temperature and pressure integrated sensor structure is characterized in that: including electrical connector (1), flexible circuit board (3), pressure ceramic subassembly (4), NTC module subassembly (6) and metal casing (8), electrical connector (1) and pressure ceramic subassembly (4), NTC module subassembly (6), flexible circuit board (3) and metal casing (8) are connected gradually according to the order, electrical connector contact pin (101) are installed in the inside grafting of electrical connector (1) and flexible circuit board (3), electrical connector (1) and flexible circuit board (3) are the electricity through electrical connector contact pin (101) and metallized hole and are connected the setting, flexible circuit board (3) are the electricity through metallized hole and contact pin with pressure ceramic subassembly (4) and are connected the setting, pressure ceramic subassembly (4) are embedded to NTC module subassembly (6), and the bottom of pressure ceramic subassembly (4) is provided with second sealing washer (5), seal through second sealing washer (5) between pressure ceramic subassembly (4) and NTC module subassembly (6), NTC module (6) are the flexible circuit board (3) and are the flexible circuit board (6) and are the both sides and are connected the metal pin (6).

2. The automobile temperature and pressure integrated sensor structure according to claim 1, wherein: the NTC module assembly (6) comprises a first NTC pin extension needle (601), an NTC core body (603), an NTC bracket (604), a first NTC pin extension needle (601) and a second NTC pin extension needle (602), wherein the first NTC pin extension needle (601) and the second NTC pin extension needle (602) are integrally injection molded, the first NTC pin extension needle (601) and the second NTC pin extension needle (602) are arranged in supporting walls on two sides of the NTC bracket (604), and extension parts at the bottoms of the first NTC pin extension needle (601) and the second NTC pin extension needle (602) are electrically connected with the NTC core body (603).

3. The automobile temperature and pressure integrated sensor structure according to claim 2, wherein: the extending parts at the tops of the first NTC contact pin extending pin (601) and the second NTC contact pin extending pin (602) are electrically connected with the metallized holes at the two sides of the flexible circuit board (3).

4. The automobile temperature and pressure integrated sensor structure according to claim 2, wherein: the pressure ceramic component (4) is located at the top of the NTC module component (6), positioning grooves are formed in two sides of the pressure ceramic component (4), and the positioning grooves and supporting walls on two sides of the NTC support (604) are vertically installed in a clamping mode.

5. The automobile temperature and pressure integrated sensor structure according to claim 4, wherein: a first mounting groove is formed in the NTC support (604), and a third sealing ring (7) is arranged in the first mounting groove.

6. The automobile temperature and pressure integrated sensor structure according to claim 1, wherein: the inside of metal casing (8) cavity is provided with the second mounting groove, set up first sealing washer (2) in the second mounting groove, NTC guard shield (9) are installed in the inside grafting of metal casing (8).