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

Abstract

The application relates to a high-sealing connector and a pressure sensor with the same, which comprises a receiving head, a socket and an element arranged in the receiving head, a terminal arranged in the socket, an inner end of the terminal extending inward and connected with the element, a reverse buckle arranged on the terminal and oscillated with the terminal, a hook arranged at a distal end of the reverse buckle, the hook buckled into a corresponding part of the receiving head to prevent the terminal from being pulled out, a front end part of the terminal and the reverse buckle capable of being received into the socket, and a sealing element sleeved on an outer periphery of the terminal and abutting against the socket. Since the terminal is connected in the receiving head in the mode of being inserted into the socket, the terminal is prevented from being pulled out by the hook, the sealing performance is ensured by the sealing element, the sealing performance is not easily lost due to thermal expansion and cold shrinkage factors, and the stability in use is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to a high sealing connector, and to a pressure sensor having the same. BACKGROUND

[0002] Current connectors containing metal connecting terminals are basically implemented using the whole injection molding method. However, because of the injection molding process and the small gap between different materials, the performance is weakened or the failure significantly increases, especially when the humidity changes greatly. At the same time, the development and verification of the influence of such structure and process cannot be quickly verified and fed back, which brings development risks and risks to the use of customers. The overall development cost is also high. SUMMARY

[0003] The purpose of the present application is to provide a high sealing connector to solve the above problems.

[0004] To achieve the above purpose, the technical solution adopted by the present application is:

[0005] The present application provides a high sealing connector, which comprises:

[0006] a receiving head, wherein a socket and an element are arranged in the receiving head;

[0007] a terminal, wherein the terminal is arranged in the socket, the inner end of the terminal extends inwardly and is connected with the element, a reverse buckle is further arranged on the terminal, the reverse buckle is swingably arranged on the terminal, a reverse hook is arranged at the distal end of the reverse buckle, the reverse hook is buckled into the corresponding part of the receiving head to prevent the terminal from being pulled out, the front end part of the terminal together with the reverse buckle can be received into the socket, a sealing element is further sleeved on the outer periphery of the terminal, and the sealing element abuts against in the socket.

[0008] Preferably, the sealing element is a sealing ring, a ring groove is formed in the part of the socket corresponding to the sealing ring, and the sealing ring is located in the ring groove.

[0009] Further, the sealing ring has more than one annular flange, and the annular flange abuts against the wall of the socket.

[0010] Preferably, a protruding part is arranged on the terminal, a stop part is arranged on the receiving head, and the stop part is located in front of the protruding part.

[0011] The present application also provides a pressure sensor, which comprises:

[0012] a receiving head, wherein a socket and an element are arranged in the receiving head;

[0013] A terminal is arranged in the insertion hole, an inner end of the terminal extends inwardly and is connected to the element, a reverse buckle is further arranged on the terminal, the reverse buckle is swingably arranged on the terminal, a reverse hook is arranged at a distal end of the reverse buckle, the reverse hook is buckled into a corresponding part of the receiving head to prevent the terminal from being pulled out, a front end part of the terminal together with the reverse buckle can be received into the insertion hole, a sealing ring is further sleeved on an outer periphery of the terminal, and the sealing ring is abutted in the insertion hole;

[0014] A detection cavity is arranged in the detection cavity, and the element includes a circuit board and a pressure sensing unit arranged on the circuit board.

[0015] Preferably, the detection cavity has a first chamber and a second chamber which are isolated from each other, the first chamber is communicated into the atmosphere, and the second chamber is communicated into the part to be detected.

[0016] Further, a waterproof and breathable film is arranged on the cover at the entrance of the first chamber.

[0017] Still further, a buckle is arranged at the entrance of the first chamber, and a cover is detachably combined on the buckle.

[0018] Still further, the cover has a cover plate and a side wall extending from a periphery of the cover plate to one side, the side wall of the cover is provided with an opening slit, so that the side wall of the cover has a certain opening elasticity.

[0019] Preferably, a cannula is arranged at the entrance of the second chamber, and a sealing sleeve is sleeved on an outer periphery of the cannula.

[0020] Thanks to the above technical scheme, the present application has the following advantages compared with the prior art:

[0021] The high-sealing connector and the pressure sensor having the same according to the present application have the following advantages: the terminal is connected to the receiving head in a manner of being inserted into the insertion hole, the terminal is prevented from being pulled out by the reverse hook, and the sealing performance is ensured by the sealing member, so that the stability of use is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0022] Some specific embodiments of the present application will be described in detail hereinafter with reference to the accompanying drawings in an exemplary and non-limiting manner. The same reference numerals in the drawings denote the same or similar components or parts. It should be understood by those skilled in the art that the drawings are not necessarily drawn to scale. In the drawings:

[0023] Figure 1 is a perspective view of a high-sealing connector according to Embodiment 1 of the present application and a pressure sensor integrated with the high-sealing connector;

[0024] Figure 2 isFigure 1 central sectional view of the embodiment 1;

[0025] Figure 3 is Figure 1 schematic diagram of the connection between the inner end of the terminal and the component in the embodiment 1;

[0026] Figure 4 is a schematic diagram of the pressure sensor structure in the embodiment 2;

[0027] Figure 5 is Figure 4 central sectional view of the embodiment 2;

[0028] In the drawings, the reference signs are explained as follows:

[0029] 1, receiving head; 101, insertion hole; 1011, annular groove; 102, stop position;

[0030] 2, terminal; 201, protruding position;

[0031] 3, component; 301, circuit board;

[0032] 4, inverted buckle; 401, barb; 402, gap;

[0033] 5, sealing ring; 501, annular flange;

[0034] 6, detection cavity; 601, first chamber; 602, second chamber;

[0035] 7, waterproof and breathable film;

[0036] 8, buckle;

[0037] 9, cover; 901, cover plate; 902, side wall; 9021, opening slit; 9022, buckle hole;

[0038] 10, cannula;

[0039] 11, sealing sleeve. DETAILED DESCRIPTION

[0040] The technical solutions of the present application will be described clearly and completely below in combination with the drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0041] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0042] In addition, the technical features involved in the different embodiments of the application described below can be combined with each other as long as they do not conflict with each other.

[0043] Embodiment 1

[0044] As Figure 1 the pressure sensor, a high-sealing connector (including a receiving head 1 and a terminal in the receiving head 1) is integrated.

[0045] As Figure 2 shown, the high-sealing connector of the right end part is mainly used to transmit the pressure detection signal of the element 3.

[0046] The high-sealing connector includes a receiving head 1 for connecting with external components and a terminal 2 for electrical connection to transmit signals.

[0047] The receiving head 1 is provided with a socket 101, and the terminal 2 is combined into the socket 101 in a plug-in manner. The front end of the terminal 2 extends inwardly and is connected to the element 3 in a welding manner. The terminal 2 is further provided with an undercut 4, which is swingably arranged on the terminal 2. The undercut 4 is provided with a barb 401 at the distal end, which is buckled into the corresponding part of the receiving head 1 to prevent the terminal 2 from being pulled out. The front end part of the terminal 2 together with the undercut 4 can be accommodated in the socket 101, so that the terminal 2 can be inserted into the socket 101 in a plug-in manner. The undercut 4 is provided with a gap 402 and a barb 401. During the process of inserting the terminal 2 into the socket 101, the barb 401 is elastically bent, the gap 402 is reduced, and when the terminal 2 reaches the predetermined position, the undercut 4 is reset due to elasticity, the gap 402 is restored, and the barb 401 is buckled to the inner side of the receiving head 1, preventing the terminal 2 from being pulled out backward. After the terminal 2 is inserted into the socket 101, the front end of the terminal 2 is welded to the element 3.

[0048] In other embodiments, if the terminal material has a small elastic deformation range, the barb 401 can be further manually pushed back to ensure the effect of the barb. The terminal 2 is further sleeved with a sealing ring 5, and the sealing ring 5 is tightly arranged in the insertion hole 101, thereby ensuring the sealing performance. The insertion hole 101 is formed with a ring groove 1011, and the sealing ring 5 is located in the ring groove 1011, thereby better accommodating the sealing ring 5.

[0049] As Figure 2 and Figure 3 The sealing ring 5 has more than one annular flange 501, and the annular flange 501 is tightly arranged with the wall of the insertion hole 101, thereby improving the sealing performance.

[0050] Although the sealing is achieved by the sealing ring 5 in this example, in other embodiments, the sealing ring 5 can be replaced by a sealing glue.

[0051] As Figure 2 The terminal 2 is provided with a protruding part 201, and the receiving head 1 is provided with a stop part 102, and the stop part 102 is located in front of the protruding part 201, thereby preventing the terminal 2 from moving forward.

[0052] In the prior art, the terminal is combined in the receiving head in an injection molding manner. Due to thermal expansion and contraction factors, the terminals and the receiving head made of different materials will have different deformation amounts, thereby causing a gap between the terminal and the receiving head, and thus causing air leakage. In addition, the terminal will be contaminated in the injection molding process, and the surface quality is not high.

[0053] As Figure 3 In this example, three terminals 2 are provided, and the number of terminals is determined according to the signals required to be output by the element 3, and is not a limitation of the present application.

[0054] As Figure 2 The pressure sensor is provided with a detection cavity 6, and the element 3 is arranged in the detection cavity 6. The element 3 includes a circuit board 301 and a pressure sensing unit arranged on the circuit board 301. The detection cavity 6 has a first chamber 601 and a second chamber 602, and the first chamber 601 and the second chamber 602 are isolated. The first chamber 601 is connected to the atmosphere, and the second chamber 602 is connected to a part to be detected, thereby measuring the pressure of the part to be detected.

[0055] A waterproof and breathable film 7 is arranged at the inlet of the first chamber 601, and the waterproof and breathable film 7 plays a role of waterproofing and air permeability.

[0056] As Figure 2 The first chamber 601 is provided with a buckle 8, and the buckle 8 is detachably combined 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 combined with the buckle 8.

[0057] As Figure 2 , the inlet of the second chamber 602 is provided with a cannula 10. The periphery of the cannula 10 is sleeved with a sealing sleeve 11, so that when the cannula 10 is inserted into the pipe to be detected, it plays a sealing role.

[0058] Embodiment 2

[0059] As Figure 4 and Figure 5 , the main difference between this example and embodiment 1 is that the structure of the cover 9 and the buckle 8 is not the same.

[0060] In this example, the side wall 902 of the cover 9 is provided with an opening seam 9021 and a buckle hole 9022. Among them, the buckle hole 9022 is used for buckling the buckle 8. The opening seam 9021 extends to the end of the side wall, which is used to make the side wall 902 of the cover 9 have a certain opening elasticity, so as to facilitate the pressing of the cover 9 to the buckle 8.

[0061] In summary, the high-sealing connector and the pressure sensor of the present application make the terminal 2 installed in the receiving head 1 in an insertion manner, prevent the terminal 2 from being pulled out by the barb 401, and ensure the sealing performance by the sealing ring 5. The sealing performance is not easy to be invalid due to thermal expansion and contraction factors. It is easy to install and stable in performance.

[0062] The above embodiments are only for illustrating the technical concept and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and implement it, and cannot limit the protection scope of the present application. Any equivalent changes or modifications made according to the spirit and essence of the present application shall be covered within the protection scope of the present application.

Claims

1. A pressure sensor characterized in that it comprises The utility model relates to a kind of detection head, including: Receiving head (1), the receptacle (101) and element (3) are arranged in the receiving head (1); Terminal (2), the terminal (2) is inclinedly threaded in the receptacle (101), the inner end of the terminal (2) extends inward and is connected with the element (3), the terminal (2) is further provided with undercut (4), the undercut (4) is swinged with the terminal (2), the distal end of the undercut (4) is provided with barb (401), the barb (401) is buckled into the corresponding part of the receiving head (1) to prevent the terminal (2) from coming out, the terminal (2) front end portion together with the undercut (4) can be received into the receptacle (101), the outer periphery of the terminal (2) is further sleeved with sealing element, and the sealing element is abutted in the receptacle (101); Detection cavity (6), the element (3) is arranged in the detection cavity (6), and the element (3) includes circuit board (301) and pressure sensing unit arranged on the circuit board (301); Wherein the sealing element is sealing ring (5), the part corresponding to the sealing ring (5) of the receptacle (101) forms annular groove (1011), and the sealing ring (5) is located in the annular groove (1011); The sealing ring (5) has more than one annular flange (501), and the annular flange (501) is abutted with the wall of the receptacle (101); The terminal (2) is provided with protruding part (201), the receiving head (1) is provided with stop part (102), and the stop part (102) is located on the front side of the protruding part (201); The detection cavity (6) has first chamber (601) and second chamber (602) separated from each other, and the inlet of the first chamber (601) is provided with buckle (8), and the buckle (8) is detachably combined with cover (9); The cover (9) has cover plate (901) and 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 opening slit (9021) and buckle hole (9022), the opening slit (9021) extends to the end of the side wall, so that the side wall (902) of the cover (9) has a certain opening elasticity, and the buckle hole (9022) is buckled into the buckle (8).

2. The pressure sensor of claim 1, wherein: The first chamber (601) is communicated into atmosphere, and the second chamber (602) is communicated into the part to be detected.

3. The pressure sensor of claim 2, wherein: The waterproof breathable membrane (7) is covered at the inlet of the first chamber (601).

4. The pressure sensor of claim 2, wherein: The inlet of the second chamber (602) is provided with cannula (10), and the outer periphery of the cannula (10) is sleeved with sealing sleeve (11).

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