Temperature, humidity and pressure measuring sensor for vehicle

Abstract

The utility model relates to the technical field of sensors, in particular to a temperature, humidity and pressure measuring sensor for a vehicle. Comprising a shell, and a cover plate is buckled on the top of the shell; the two U-shaped clamping grooves are symmetrically formed in the upper part of the detection cavity of the shell; the printed board is axially inserted into the detection cavity of the shell; the printed board is of a T-shaped board structure, and the shoulders of the T-shaped board are connected to the two U-shaped clamping grooves in a clamped mode so that limiting installation of the printed board can be achieved. The printed board further comprises a thermistor, a humidity chip and a pressure chip which are welded. According to the utility model, the printed board can be rapidly limited, the assembly operability is strong, and the assembly difficulty is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of sensors, in particular to a vehicle temperature, humidity and pressure measuring sensor. Background Art

[0002] In the field of vehicle environmental measurement technology, in order to detect the needs of air humidity, temperature and pressure, we will place temperature, humidity and pressure measurement sensors at the car's air intake port to create a comfortable driving environment for the driver. For example, the temperature and humidity sensor with patent publication number CN103743437A includes an upper cover, a socket, a sealing ring, a lower shell, and a printed circuit board. The upper cover is buckled on the left side of the upper end of the lower shell, and the fixed ears are symmetrically arranged on the left side of the upper end of the lower shell. The sealing ring is sleeved on the outer side of the middle part of the lower shell below the upper cover. A printed circuit board is installed in the space between the upper cover and the lower shell. The printed circuit board is welded with a pressure diffusion silicon pressure chip for detecting pressure, an NTC thermistor for detecting temperature, and an integrated chip for detecting humidity. A socket is arranged on the right side of the upper end of the lower shell.

[0003] However, when the above sensor structure is used, there is a lack of a quick limiting structure for the printed circuit board, resulting in poor stability after assembly, shortened service life and high assembly difficulty. Utility Model Content

[0004] The utility model aims to provide a vehicle temperature, humidity and pressure measuring sensor, which can realize rapid position limiting of a printed circuit board and has strong assembly operability, thereby reducing the difficulty of assembly.

[0005] In order to solve the above technical problems, the utility model provides a vehicle temperature, humidity and pressure measurement sensor, comprising:

[0006] A shell, wherein a cover plate is buckled on the top of the shell;

[0007] U-shaped card slots, two of which are symmetrically arranged on the upper part of the detection cavity of the housing;

[0008] The printed circuit board is axially inserted into the detection cavity of the shell; the printed circuit board is arranged in a T-shaped plate structure, and is clamped on the two U-shaped slots through the shoulders of the T-shaped plate to achieve limited installation of the printed circuit board.

[0009] Preferably, the printed circuit board also includes a welded thermistor, a humidity chip and a pressure chip.

[0010] Preferably, it further comprises an abutment slot, and the bottom of the housing is provided with the abutment slot for clamping and limiting with the bottom of the printed circuit board.

[0011] Preferably, it further comprises an L-shaped pin header terminal, and the top of the printed circuit board also comprises the welded L-shaped pin header terminal.

[0012] Preferably, it further includes a socket, which is integrally formed and arranged on the upper left side wall of the shell, and the socket also includes a plurality of linearly arranged L-shaped metal sheets, and the end of the L-shaped metal sheet close to the side of the L-shaped pin terminal is provided with a U-shaped connecting groove, and the U-shaped connecting groove is used to connect with one end of the L-shaped pin terminal.

[0013] Preferably, it also includes an anti-backlash block 1 and an anti-backlash block 2; the anti-backlash block 1 is arranged at the left end of the inner top wall of the cover plate, and the anti-backlash block 2 is arranged at the upper right side wall of the detection cavity of the shell.

[0014] Preferably, the bottom end surface of the anti-backlash block one is lower than the top end surface of the anti-backlash block two.

[0015] Preferably, it further comprises a snap-fit ​​groove, wherein the snap-fit ​​groove is provided at the top of the shell, the cover plate is snap-fitted into the snap-fit ​​groove, and the snap-fit ​​groove further comprises a glue layer filled therein.

[0016] Preferably, it also includes an O-ring, which is embedded in the circumferential outer wall of the shell and is used to achieve sealing installation with the automobile air intake end mounting seat.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] The utility model realizes the limited installation of the printed circuit board by clamping the shoulder of the T-shaped plate on the two U-shaped slots. When assembling the printed circuit board and the housing, the U-shaped slot and the T-shaped plate are used to cooperate and limit the clamping, so that the printed circuit board can be quickly assembled. On the one hand, the assembly stability is improved, and it is not easy to shake, thereby extending the service life; in addition, because the U-shaped slot provides a guiding function, it can reduce the assembly difficulty for the assembler, making the assembly more operable. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a stereoscopic diagram of the vehicle temperature, humidity and pressure measuring sensor provided by the utility model.

[0020] Figure 2 A cross-sectional view of the vehicle temperature, humidity and pressure measurement sensor provided by the utility model Figure 1 .

[0021] Figure 3 A cross-sectional view of the vehicle temperature, humidity and pressure measurement sensor provided by the utility model Figure 2 .

[0022] Figure 4 Decomposition of the vehicle temperature, humidity and pressure measurement sensor provided by the utility model Figure 1 .

[0023] Figure 5 Decomposition of the vehicle temperature, humidity and pressure measurement sensor provided by the utility model Figure 2 .

[0024] Figure 6 This is a structural diagram of the vehicle temperature, humidity and pressure measuring sensor provided by the utility model with the cover removed.

[0025] In the figure: 1-housing, 2-cover plate, 3-U-shaped card slot, 4-printed circuit board, 5-butt card slot, 6-L-shaped pin terminal, 7-socket, 8-L-shaped metal sheet, 9-U-shaped connecting groove, 10-anti-reverse buckle block 1, 11-anti-reverse buckle block 2, 12-fastening groove, 13-O-shaped sealing ring. DETAILED DESCRIPTION

[0026] The utility model is further described in detail below in conjunction with the accompanying drawings and specific embodiments. According to the following description, the advantages and features of the utility model will become clearer. It should be noted that the drawings are all in a very simplified form and are not in precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the utility model.

[0027] like Figures 1 to 6 As shown, the embodiment of the utility model provides a vehicle temperature, humidity and pressure measurement sensor, including: a housing 1, a cover plate 2 is fastened on the top of the housing 1, and a plurality of detection meshes are provided on the bottom circumferential wall of the housing 1, i.e., the detection cavity, so as to realize the detection of the environment to be measured by the sensor; a U-shaped card slot 3, two U-shaped card slots 3 are symmetrically provided on the upper part of the detection cavity of the housing 1; a printed board 4 is axially inserted into the detection cavity of the housing 1; the printed board 4 is arranged in a T-shaped plate structure, and is clamped on the two U-shaped card slots 3 through the shoulder of the T-shaped plate to realize the limited installation of the printed board 4. When assembling the printed board 4 with the housing 1, by utilizing the matching limited clamping of the U-shaped card slot 3 and the T-shaped plate, the printed board 4 can be quickly assembled, which improves the assembly stability, is not easy to shake and thus prolongs the service life; in addition, since the U-shaped card slot 3 provides a guiding effect, it can reduce the assembly difficulty for the assembler, making the assembly more operable.

[0028] The printed circuit board 4 also includes welded thermistors, humidity chips and pressure chips to measure the ambient temperature, humidity and pressure.

[0029] The housing 1 also includes an abutment slot 5 . The bottom of the housing 1 is provided with an abutment slot 5 for engaging with the bottom of the printed circuit board 4 for positioning. By cooperating with the U-shaped slot 3 , the installation positioning effect of the printed circuit board 4 is further enhanced.

[0030] It also includes an L-shaped pin terminal 6 . The top of the printed circuit board 4 also includes a welded L-shaped pin terminal 6 , which is convenient for electrical conduction with the L-shaped metal sheet 8 connecting terminal on the socket 7 .

[0031] The socket 7 is also included. The socket 7 is integrally formed and arranged on the upper left side wall of the housing 1. The socket 7 also includes a plurality of linearly arranged L-shaped metal sheets 8. The end of the L-shaped metal sheet 8 close to the L-shaped pin terminal 6 is provided with a U-shaped connecting groove 9. The U-shaped connecting groove 9 is used to be spot-welded to one end of the L-shaped pin terminal 6. When the printed circuit board 4 is accurately limited and installed, one end of the L-shaped pin terminal 6 is snap-fitted and assembled with the U-shaped connecting groove 9 on the L-shaped metal sheet 8, and then fixedly connected by spot welding, which can further enhance the limiting and fixing effect of the printed circuit board 4.

[0032] It also includes an anti-rebound block 10 and an anti-rebound block 11; the anti-rebound block 10 is arranged at the left end of the inner top wall of the cover plate 2, and the anti-rebound block 11 is arranged at the upper part of the right side wall of the detection chamber of the housing 1. The bottom end surface of the anti-rebound block 10 is lower than the top end surface of the anti-rebound block 11. When the cover plate 2 is installed in the wrong direction, due to the interference blocking structure formed between the anti-rebound block 10 and the anti-rebound block 11 in the vertical direction, that is, the anti-error design is provided between the cover plate 2 and the housing 1, the cover plate 2 cannot be smoothly buckled, and can only be installed and buckled in one direction.

[0033] The housing 1 further comprises a buckling groove 12 which is provided at the top of the housing 1 , the cover plate 2 is buckled into the buckling groove 12 , and the buckling groove 12 also comprises a glue layer filled therein, so as to achieve the purpose of sealing and fixing the cover plate 2 and the housing 1 .

[0034] It also includes an O-type sealing ring 13, which is embedded in the circumferential outer wall of the housing 1 and is used to achieve sealing installation with the vehicle intake end mounting seat.

[0035] The above description is only a description of the preferred embodiment of the utility model, and is not any limitation on the scope of the utility model. Any changes and modifications made by ordinary technicians in the field of the utility model based on the above disclosure shall fall within the scope of protection of the claims.

Claims

1. A vehicle temperature, humidity and pressure measurement sensor, characterized in that: include: A housing (1), wherein a cover plate (2) is buckled on the top of the housing (1); U-shaped card slots (3), two of the U-shaped card slots (3) are symmetrically arranged at the upper part of the detection cavity of the housing (1); The printed circuit board (4) is axially inserted into the detection cavity of the housing (1); the printed circuit board (4) is arranged in a T-shaped plate structure, and is clamped on the two U-shaped slots (3) through the shoulders of the T-shaped plate to achieve limited installation of the printed circuit board (4).

2. A vehicle temperature, humidity and pressure measurement sensor as claimed in claim 1, characterized in that: The printed circuit board (4) also includes a welded thermistor, a humidity chip and a pressure chip.

3. A vehicle temperature, humidity and pressure measurement sensor as claimed in claim 1, characterized in that: It also comprises an abutment slot (5), the bottom of the housing (1) is provided with the abutment slot (5) for clamping and limiting with the bottom of the printed circuit board (4).

4. A vehicle temperature, humidity and pressure measurement sensor as claimed in claim 1, characterized in that: It also includes an L-shaped pin terminal (6), and the top of the printed circuit board (4) also includes the L-shaped pin terminal (6) welded.

5. A vehicle temperature, humidity and pressure measurement sensor as claimed in claim 4, characterized in that: The invention also comprises a socket (7), wherein the socket (7) is integrally formed and arranged on the upper part of the left side wall of the housing (1), and the socket (7) further comprises a plurality of linearly arranged L-shaped metal sheets (8), and a U-shaped connecting groove (9) is provided at the end of the L-shaped metal sheet (8) close to the side of the L-shaped pin terminal (6), and the U-shaped connecting groove (9) is used to connect with one end of the L-shaped pin terminal (6).

6. A vehicle temperature, humidity and pressure measurement sensor as claimed in claim 1, characterized in that: It also includes an anti-rebound block 1 (10) and an anti-rebound block 2 (11); the anti-rebound block 1 (10) is arranged at the left end of the inner top wall of the cover plate (2), and the anti-rebound block 2 (11) is arranged at the upper part of the right side wall of the detection cavity of the housing (1).

7. A vehicle temperature, humidity and pressure measurement sensor as claimed in claim 6, characterized in that: The bottom end surface of the anti-backlash block 1 (10) is lower than the top end surface of the anti-backlash block 2 (11).

8. A vehicle temperature, humidity and pressure measurement sensor according to any one of claims 1 to 7, characterized in that: It also comprises a snap-fit ​​groove (12), wherein the snap-fit ​​groove (12) is provided at the top of the housing (1), the cover plate (2) is snap-fitted into the snap-fit ​​groove (12), and the snap-fit ​​groove (12) also comprises a glue layer filled therein.

9. A vehicle temperature, humidity and pressure measurement sensor according to any one of claims 1 to 7, characterized in that: It also comprises an O-type sealing ring (13), which is embedded in the circumferential outer wall of the housing (1) and is used to achieve sealing installation with the vehicle air intake end mounting seat.

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