CN112038810B

CN112038810B - A high-sealing connector and a pressure sensor having the same.

Info

Publication number: CN112038810B
Application number: CN202010879336.5A
Authority: CN
Inventors: 惠斌; 贾紫超
Original assignee: Suzhou Yiweilan Electronic Technology Co ltd
Current assignee: Suzhou Yiweilan Electronic Technology Co ltd
Priority date: 2020-08-27
Filing date: 2020-08-27
Publication date: 2025-12-05
Anticipated expiration: 2040-08-27
Also published as: CN112038810A

Abstract

The invention relates to a high-tightness connector and a pressure sensor with the same, comprising a receiving head, a terminal and a back-off, wherein a jack and an element are arranged in the receiving head, the terminal is arranged in the jack in a penetrating mode, the inner end of the terminal extends inwards and is connected with the element, the terminal is further provided with the back-off, the back-off is arranged in a swinging mode with the terminal, the far end of the back-off is provided with a barb, the barb is buckled in a corresponding position of the receiving head to prevent the terminal from falling out, the front end part of the terminal and the back-off can be contained in the jack, the periphery of the terminal is sleeved with a sealing element, and the sealing element is abutted against the jack. The terminal is connected in the receiving head in a mode of being inserted into the jack, the terminal is prevented from falling off through the barb, the sealing performance is guaranteed through the sealing piece, the sealing performance is not easy to lose efficacy due to the factors of thermal expansion and cold contraction, and the use stability is guaranteed.

Description

High-tightness connector and pressure sensor with same

Technical Field

The invention relates to a high-tightness connector and also relates to a pressure sensor with the high-tightness connector.

Background

Connectors currently incorporating metallic connection terminals are implemented substantially using integral injection molding. However, because of injection molding and other processes, and the combination of different materials, tiny gaps exist, and particularly when the humidity and heat change is large, the performance of the plastic is weakened or the failure is obviously increased. Meanwhile, development and verification cannot be performed quickly due to the influences of the structure and the process, development risks are brought, and risks are brought to use of customers. The whole development cost is high.

Disclosure of Invention

The object of the present invention is to provide a high tightness connector to solve the above problems.

In order to achieve the above purpose, the invention adopts the following technical scheme:

the present invention provides a high-tightness connector, comprising:

A receiving head having a receptacle and a component disposed therein;

The terminal is worn to establish in the jack, the inner of terminal inwards extends and is connected with the component, still be provided with the back-off on the terminal, the back-off with the terminal swings mutually and sets up, the distal end of back-off is provided with the barb, the barb is detained the receiver corresponds the position in order to prevent the terminal is deviate from, terminal front end portion together with the back-off can be accomodate in the jack, terminal periphery still overlaps and is equipped with the sealing member, the sealing member supports tightly in the jack.

Preferably, the sealing element is a sealing ring, a ring groove is formed at a position of the insertion hole corresponding to the sealing ring, and the sealing ring is positioned in the ring groove.

Further, the sealing ring has more than one annular flange which abuts against the wall of the receptacle.

Preferably, a protruding portion is provided on the terminal, and a stopper portion is provided on the receiving head, the stopper portion being located on a front side of the protruding portion.

There is also provided a pressure sensor comprising:

A receiving head having a receptacle and a component disposed therein;

The terminal is arranged in the jack in a penetrating mode, the inner end of the terminal extends inwards and is connected with the element, the terminal is further provided with an inverted buckle, the inverted buckle and the terminal are arranged in a swinging mode, the far end of the inverted buckle is provided with a barb, the barb is buckled into the corresponding position of the receiving head to prevent the terminal from falling out, the front end part of the terminal and the inverted buckle can be contained in the jack, the periphery of the terminal is sleeved with a sealing ring, and the sealing ring is abutted against the jack;

The detection cavity, the component sets up in the detection cavity, the component includes circuit board and the pressure sensing unit who sets up on the circuit board.

Preferably, the detection cavity is provided with a first cavity and a second cavity which are isolated, the first cavity is communicated with the atmosphere, and the second cavity is communicated with a part to be detected.

Further, a waterproof and breathable film is arranged at the inlet of the first chamber.

Still further, the inlet of the first chamber is provided with a clasp to which a cover is detachably coupled.

Still further, the lid has apron and from the lateral wall that apron periphery extends to one side, the lateral wall of lid has seted up and has opened the slit for the lateral wall of lid has certain elasticity that opens.

Preferably, an inlet of the second chamber is provided with a cannula, and a sealing sleeve is sleeved on the periphery of the cannula.

Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:

According to the high-tightness connector and the pressure sensor with the high-tightness connector, the terminal is connected in the receiving head in the mode of being inserted into the jack, the terminal is prevented from falling out through the barb, the sealing performance is guaranteed through the sealing piece, the sealing performance is not easy to lose efficacy due to the heat expansion and cold contraction factors, and the use stability is guaranteed.

Drawings

Some specific embodiments of the invention will be described in detail hereinafter by way of example and not by way of limitation with reference to the accompanying drawings. The same reference numbers will be used throughout the drawings to refer to the same or like parts or portions. It will be appreciated by those skilled in the art that the drawings are not necessarily drawn to scale. In the accompanying drawings:

FIG. 1 is a perspective view of a high-tightness connector according to embodiment 1 of the present invention and a pressure sensor integrated with the high-tightness connector;

FIG. 2 is a central cross-sectional view of FIG. 1;

FIG. 3 is a schematic view of the inner ends of the terminals of FIG. 1 connected to the element;

FIG. 4 is a schematic view of the structure of a pressure sensor of embodiment 2;

FIG. 5 is a central cross-sectional view of FIG. 4;

Wherein reference numerals are as follows:

1. the device comprises a receiving head, 101, a jack, 1011, a ring groove, 102 and a stop part;

2. A terminal 201, a convex part;

3. element 301, circuit board;

4. Back-off 401, barbs 402, gaps;

5. 501, annular flange;

6. Detection cavity 601, first cavity 602, second cavity;

7. A waterproof breathable film;

8. A clasp;

9. Cover 901, cover plate 902, side wall 9021, open seam 9022 and button hole;

10. A cannula;

11. And (5) sealing the sleeve.

Detailed Description

The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In addition, the technical features of the different embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.

Example 1

As in the pressure sensor of fig. 1, a high-tightness connector (comprising a receiving head 1 and terminals in the receiving head 1) is integrated.

As shown in fig. 2, the high-tightness connector of the right end portion is mainly used for transmitting out the pressure detection signal of the element 3.

The high-tightness connector includes a receiving head 1 for connection with an external member, and a terminal 2 for electrical connection to transmit a signal.

The receiving head 1 is provided therein with a receptacle 101, and the terminals 2 are insertedly coupled into the receptacle 101. The front ends of the terminals 2 extend inward and are connected to the element 3 by soldering. The terminal 2 is also provided with an inverted buckle 4, the inverted buckle 4 and the terminal 2 are arranged in a swinging way, the far end of the inverted buckle 4 is provided with a barb 401, and the barb 401 is buckled into the corresponding part of the receiving head 1 to prevent the terminal 2 from falling out. The front end portion of the terminal 2 together with the back-off 4 can be received in the insertion hole 101, so that the terminal 2 can be inserted into the insertion hole 101. The back-off 4 is provided with a gap 402 and a barb 401, the barb 401 is elastically bent in the process of inserting the terminal 2 into the jack 101, the gap 402 is reduced, and after the terminal 2 reaches a preset position, the back-off 4 is reset due to elasticity, the gap 402 is restored, the back-off 401 is buckled to the inner side surface of the receiving head 1, and the terminal 2 is prevented from backing out outwards. After the terminal 2 is inserted into the insertion hole 101, the front end of the terminal 2 is soldered to the element 3.

In other implementation methods, if the elastic deformation range of the terminal material is small, the barb 401 can be further manually pulled back, so that the effect of back-off is ensured. The periphery of the terminal 2 is also sleeved with a sealing ring 5, and the sealing ring 5 is abutted in the jack 101, so that the tightness is ensured. A ring groove 1011 is formed in the insertion hole 101, and the ring groove 1011 corresponds to a portion of the seal ring 5, and the seal ring 5 is located in the ring groove 1011, thereby better accommodating the seal ring 5.

As shown in fig. 2 and 3, the seal ring 5 has more than one annular flange 501, and the annular flange 501 abuts against the wall of the insertion hole 101, so that the sealing performance can be improved.

Although the sealing is achieved by the sealing ring 5 in this example, in other embodiments, the sealing ring 5 may be replaced by a sealant.

As shown in fig. 2, the terminal 2 is provided with a projection 201, and the receiving head 1 is provided with a stopper 102, the stopper 102 being located on the front side of the projection 201, thereby preventing the terminal 2 from moving forward.

In the prior art, the terminals are usually combined in the receiving head in an injection molding mode, and the terminals and the receiving head of different materials have different deformation due to the factors of thermal expansion and cold contraction, so that gaps are formed between the terminals and the receiving head, and air leakage can occur. In addition, the terminals can be polluted in the injection molding process, and the surface quality is low.

As shown in fig. 3, the terminals 2 are provided with three, depending on the signal to be output on the element 3, and the present invention is not limited thereto.

As shown in fig. 2, the pressure sensor is provided with a detection chamber 6, and the element 3 is arranged in the detection chamber 6. The element 3 includes a circuit board 301 and a pressure sensing unit provided on the circuit board 301. The detection chamber 6 has a first chamber 601 and a second chamber 602, and the first chamber 601 and the second chamber 602 are isolated. Wherein the first chamber 601 is communicated with the atmosphere, and the second chamber 602 is communicated with the part to be detected, so that the pressure of the part to be detected can be measured.

The entrance cover of first cavity 601 is equipped with waterproof ventilated membrane 7, and waterproof ventilated membrane 7 plays waterproof, ventilative effect.

As shown in fig. 2, the inlet of the first chamber 601 is provided with a clasp 8, and the clasp 8 is detachably coupled with a cover 9. The cover 9 has a cover plate 901 and a side wall 902, and the side wall 902 extends from the periphery of the cover plate 901 to one side. The side wall 902 of the cover 9 is joined to the clasp 8.

As shown in fig. 2, the inlet of the second chamber 602 is provided with a cannula 10. The periphery of the insertion tube 10 is sleeved with a sealing sleeve 11, so that the insertion tube 10 plays a role in sealing when inserted into a tube to be detected.

Example 2

As shown in fig. 4 and 5, the main difference between this example and embodiment 1 is that the structure of the cover 9 is different from that of the clasp 8.

In this example, the side wall 902 of the lid 9 is provided with an open slit 9021 and a grommet 9022. Wherein, the button hole 9022 is used for the button 8 to be buckled in. The slit 9021 extends to the end of the side wall for imparting a certain splaying elasticity to the side wall 902 of the cover 9, thereby facilitating pressing of the cover 9 onto the button 8.

In summary, in the high-tightness connector and the pressure sensor according to the present invention, the terminal 2 is mounted in the receiving head 1 in an inserting manner, the terminal 2 is prevented from being separated by the barb 401, the sealing performance is ensured by the sealing ring 5, and the sealing performance is not easy to fail due to the heat expansion and cold contraction factors. Easy to install and stable in performance.

The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the present invention and to implement the same, but are not intended to limit the scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be included in the scope of the present invention.

Claims

1. A pressure sensor, comprising:

a receiving head (1), wherein a jack (101) and an element (3) are arranged in the receiving head (1);

The terminal (2) is obliquely arranged in the jack (101) in a penetrating mode, the inner end of the terminal (2) extends inwards and is connected with the element (3), the terminal (2) is further provided with a back-off buckle (4), the back-off buckle (4) is arranged in a swinging mode with the terminal (2), the far end of the back-off buckle (4) is provided with a barb (401), the barb (401) is buckled into a corresponding position of the receiving head (1) to prevent the terminal (2) from being separated, the front end portion of the terminal (2) together with the back-off buckle (4) can be contained in the jack (101), the periphery of the terminal (2) is further sleeved with a sealing piece, and the sealing piece is abutted to the jack (101);

-a detection chamber (6), the element (3) being arranged in the detection chamber (6), the element (3) comprising a circuit board (301) and a pressure sensing unit arranged on the circuit board (301);

The sealing element is a sealing ring (5), a ring groove (1011) is formed at the position of the insertion hole (101) corresponding to the sealing ring (5), and the sealing ring (5) is positioned in the ring groove (1011);

the sealing ring (5) has more than one annular flange (501), the annular flange (501) being in abutment with the wall of the receptacle (101);

A protruding part (201) is arranged on the terminal (2), a stopping part (102) is arranged on the receiving head (1), and the stopping part (102) is positioned at the front side of the protruding part (201);

The detection cavity (6) is provided with a first cavity (601) and a second cavity (602) which are isolated, a buckle (8) is arranged at the inlet of the first cavity (601), and a cover (9) is detachably combined on the buckle (8);

The cover (9) is provided with a cover plate (901) and a side wall (902) extending from the periphery of the cover plate (901) to one side, the side wall (902) of the cover (9) is provided with an opening slit (9021) and a buckling hole (9022), the opening slit (9021) extends to the end part of the side wall, the side wall (902) of the cover (9) is provided with a certain opening elasticity, and the buckling hole (9022) is used for buckling the buckle (8).

2. The pressure sensor according to claim 1, wherein the first chamber (601) is connected to the atmosphere and the second chamber (602) is connected to the site to be detected.

3. The pressure sensor according to claim 2, characterized in that the inlet of the first chamber (601) is covered with a waterproof and breathable membrane (7).

4. The pressure sensor according to claim 2, wherein the inlet of the second chamber (602) is provided with a cannula (10), and the cannula (10) is peripherally provided with a sealing sleeve (11).