High-voltage female end connector

Abstract

The high-voltage female end connector comprises an inner shell assembly, a terminal assembly and an outer protective shell, the inner shell assembly comprises a pair of shielding inner shells integrally formed by a shielding cover in an insert injection molding mode, and the terminal assembly comprises female terminals and terminal wires which are arranged in mounting cavities of the pair of shielding inner shells. The outer protective shell and the inner shell assembly are formed into an integrated structure through secondary injection molding, and the outer protective shell wraps the outer sides of the pair of shielding inner shells and extends to wrap the terminal wires. According to the high-voltage female-end connector adopting the technical scheme, the inner shell assembly and the outer protective shell are combined into an integrated structure in an insert plastic manner, so that the assembly time is greatly shortened, the manpower and material cost is reduced, the installation process is simplified, the production efficiency is improved, and the production cost is reduced. Meanwhile, the sealing performance of installation and connection of the inner shell assembly and the wire is ensured by adopting an insert injection molding mode, the sealing protection grade of a product is improved, and electrical contacts and circuits in the connector are protected from being influenced by the external environment.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of electric connector, specifically relates to a high pressure female end connector. BACKGROUND

[0002] Electric connector is a kind of component frequently used in electrical connection field, and its function is mainly to transmit electric signal or conduct electricity, and its form and structure vary with application object, frequency, power, application environment etc., and various different forms of connectors begin to emerge.Electric connector can build a bridge of communication between the cut-off place in circuit or isolated circuit, so that current flows, and the circuit realizes predetermined function.

[0003] The existing high pressure female end connector mainly includes shell seat, shell cover, terminal assembly, shielding cover, sealing sleeve, lock sleeve and wire harness, generally, shielding cover is assembled to base and shell cover first, then terminal assembly is installed to bottom shell and connected with wire harness, sealing ring is arranged on wire harness and is assembled and compressed by shell seat and shell cover, then fixed sleeve is installed to shell seat and shell cover to buckle them, so that sealing ring is extruded and sealed to wire in the tail position of shell seat and shell cover.From the above structure, it can be seen that each component of high pressure female end connector needs to be assembled one by one, and sealing ring needs to be arranged in the tail of shell seat and shell cover to realize sealing to wire harness, so the sealing effect is poor, the whole installation structure is complex, the installation steps are many, the working efficiency is low, and the cost is increased. UTILITY MODEL CONTENTS

[0004] Therefore, the technical problem to be solved by the utility model is to overcome the problems of the prior art, i.e., each component of high pressure female end connector needs to be assembled one by one, the whole installation structure is complex, the installation steps are many, the working efficiency is low, and the cost is increased.

[0005] To solve the above technical problems, the utility model provides a high pressure female end connector, which comprises:

[0006] Inner shell assembly, comprising a pair of shielding inner shells integrally injection molded by embedding shielding cover in plastic parts, and at least one installation cavity is formed between the pair of shielding inner shells, and the installation cavity has wire inlet end and socket end arranged at both ends of the pair of shielding shells;

[0007] Terminal assembly, comprising female terminal and terminal wire arranged in the installation cavity, and the terminal wire extends out of one end of the shielding inner shell through wire inlet end;

[0008] Outer protective shell, which is integrally formed with the inner shell assembly by secondary injection molding, the outer protective shell is wrapped on the outer side of the pair of shielding inner shells, and has sealing sheath part extending out of one end of the shielding inner shell and tightly wrapped on the terminal wire.

[0009] As a preferred solution, the inner shell assembly further comprises a rear cover fixed at one end of the pair of shielding inner shells, the rear cover surrounds the wire inlet end and is provided with a wire passing hole through which the terminal wire passes, and the sealing sheath part is wrapped outside the rear cover.

[0010] As a preferred solution, a sealing sleeve is arranged between the terminal wire and the rear cover, and the sealing sleeve is arranged at the entrance of the wire passing hole along the length direction of the terminal wire.

[0011] As a preferred solution, the sealing sleeve comprises a tapered portion and a plurality of annular protruding portions, the plurality of annular protruding portions are arranged between the terminal wire and the inner wall of the wire passing hole by extrusion, the tapered portion is arranged at the entrance of the wire passing hole by extrusion, and the entrance of the wire passing hole is provided with a beveled structure matched with the tapered portion.

[0012] As a preferred solution, a shielding ring is sleeved on the terminal wire and accommodated in the wire passing hole, the shielding ring is located between the sealing sleeve and one end of the shielding inner shell and is in contact with the shielding cover.

[0013] As a preferred solution, the pair of shielding inner shells are connected by ultrasonic welding and are provided with positioning columns and positioning grooves formed in positioning cooperation therebetween.

[0014] As a preferred solution, two installation cavities are arranged between the pair of shielding inner shells, the terminal wire is connected to the female terminal by welding or crimping, and the female terminal is in a sheet structure and is inserted into the socket end.

[0015] As a preferred solution, a plurality of wire pressing structures for clamping the terminal wire are arranged at intervals along the extension direction of the terminal wire in the wire inlet end, each wire pressing structure is composed of two wire pressing plates oppositely arranged on the pair of shielding inner shells, and a wire clamping groove for clamping the terminal wire is formed between the two wire pressing plates.

[0016] As a preferred solution, the rear cover and the pair of shielding inner shells are fixedly connected through a connecting structure, the connecting structure comprises: a plurality of buckle bosses arranged on the outer wall of one end of the pair of shielding inner shells, a plurality of elastic clamping plates corresponding to the plurality of buckle bosses arranged on the rear cover to form clamping cooperation, and the cross-sectional shape of the rear cover is wedge-shaped.

[0017] As a preferred solution, a locking member is rotatably arranged on the outer protective shell, the locking member comprises two rotating arms rotatably connected to the two sides of the outer protective shell, a yawing arm connecting the two rotating arms, and an arc-shaped connecting groove oppositely arranged on the two rotating arms, the two rotating arms are respectively provided with an elastic lock catch matched with a first buckle on the two sides of the outer protective shell to be locked, and the yawing arm is provided with a sliding lock catch matched with a second buckle on the top of the outer protective shell to be locked.

[0018] The technical scheme of the utility model has the following advantages compared with the prior art:

[0019] 1. In the high-voltage female connector, according to the inner shell assembly including a pair of shielded inner shells, the shielded inner shells are integrally formed by insert injection molding of a shield cover, then the female terminal and the terminal wire are installed in the installation cavity formed between the pair of shielded inner shells, so that the inner shell assembly and the terminal assembly are pre-assembled into a whole, and finally the outer protective shell is formed by secondary injection molding on the basis of the inner shell assembly, so that the outer protective shell seals and covers the outer side of the shielded inner shell and extends to cover part of the terminal wire, the high-voltage female connector adopting the technical scheme integrates the inner shell assembly and the outer protective shell into an integral structure by insert plastic injection molding, eliminates secondary processing procedures such as clamping and riveting, greatly shortens the assembly time and reduces the labor and material costs, simplifies the installation process, improves the production efficiency, and at the same time, the insert injection molding ensures the sealing of the installation and connection of the inner shell assembly and the wire, improves the product sealing protection level, protects the electrical contacts and circuits inside the connector from the external environment, can withstand high pressure and harsh environment, and is widely used in electrical connection of new energy vehicles.

[0020] 2. In the high-voltage female connector, according to the tapered part and the plurality of annular protruding parts of the sealing sleeve, the tapered part is tightly arranged at the inlet of the wire hole to form a self-sealing mechanism, so that sealing connection is realized at the inlet position of the wire hole, and the plurality of annular protruding parts play a multi-segment sealing role between the terminal wire and the inner wall of the wire hole, in addition, the sealing sheath part of the outer protective shell covers the entire rear cover and part of the terminal wire extending out of the wire hole, which has good sealing, waterproof and dustproof effects, and this design plays the effects of internal and external multiple sealing protection and multi-segment structure sealing for the distance of the wire penetrating into the installation cavity of the inner shell assembly, so as to achieve the required sealing level.

[0021] 3. In the high-voltage female connector, a plurality of wire pressing structures are arranged in the wiring end of the installation cavity, each wire pressing structure is composed of two wire pressing plates arranged opposite to each other, the pair of shielded inner shells are connected by ultrasonic welding to ensure the sealing property of the connection, and the plurality of wire pressing structures press the terminal wire passing through the wiring end, which plays a limiting and anti-loosening role for the terminal wire in the installation cavity, improves the tensile strength of the wire, avoids the loosening of the terminal wire caused by external force, and ensures the firmness, reliability and safety of the connection of the terminal wire.

[0022] 4. The high-voltage female connector of the utility model, according to the locking component rotatably arranged on the outer protective shell, when the high-voltage female connector and the male connector are inserted, the male connector is fixed with the connecting pin passing through the arc-shaped connecting groove on both sides, the connecting pin is moved from one end to the other end of the arc-shaped connecting groove by turning the locking component, the high-voltage female connector and the male connector are locked by the process, the first locking is realized by the elastic lock catch on the two rotating arms and the first buckle, and the second locking is realized by the sliding lock catch on the horizontal swing arm and the second buckle, so that the female connector and the male connector are locked multiple times, the female connector and the male connector are prevented from loosening, the locking is reliable, the installation stability is good, and the safety and reliability of product use are guaranteed. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the specific embodiments of the utility model or the technical solutions in the prior art, the drawings needed in the specific embodiments or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating labor.

[0024] Figure 1 The utility model provides the three-dimensional structure schematic diagram of high-voltage female connector;

[0025] Figure 2 The utility model provides the structure schematic diagram of high-voltage female connector of the utility model after hiding locking component;

[0026] Figure 3 The utility model provides the sectional structure schematic diagram of high-voltage female connector;

[0027] Figure 4 The utility model provides the sectional structure schematic diagram of high-voltage female connector;

[0028] Mark explanation: 1, shield inner shell;11, shield cover;12, positioning column;13, buckle boss;2, female terminal;3, terminal wire;4, installation cavity;41, wire inlet end;42, socket end;43, wire pressing structure;5, outer protective shell;51, sealing sheath part;52, first buckle;33, second buckle;6, rear cover;61, wire hole;62, elastic clamping plate;7, sealing sleeve;71, tapered part;72, annular convex part;8, shielding ring;9, locking component;91, rotating arm;92, horizontal swing arm;93, arc-shaped connecting groove;94, elastic lock catch;95, sliding lock catch. EMBODIMENT

[0029] The technical solutions of the present application will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are some of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0030] 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 based on 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 the purpose of description, and cannot be understood as indicating or implying relative importance.

[0031] Embodiments

[0032] The present application provides a high-voltage female connector as shown in Figures 1-4 The present application provides a high-voltage female connector as shown in

[0033] The inner shell assembly includes a pair of shielded inner shells 1 integrally injection molded by embedding the shielded cover 11 in a plastic part, and at least one mounting cavity 4 is formed between the pair of shielded inner shells 1, and the mounting cavity 4 has a wire inlet end 41 and a socket end 42 arranged at both ends of the pair of shielded shells;

[0034] The terminal assembly includes a female terminal 2 and a terminal wire 3 arranged in the mounting cavity 4, and the terminal wire 3 extends out of one end of the shielded inner shell 1 through the wire inlet end 41;

[0035] The outer protective shell 5 is integrally formed with the inner shell assembly by secondary injection molding, and the outer protective shell is wrapped on the outer side of the pair of shielded inner shells 1 and has a sealing sheath part 51 extending out of one end of the shielded inner shell 1 and tightly wrapped on the terminal wire 3.

[0036] The above embodiment is the core technical solution of the present embodiment. According to the inner shell assembly including a pair of shielding inner shells 1, the shielding inner shells 1 are integrally formed by insert injection molding of the shielding cover 11, then the female terminal 2 and the terminal wire 3 are installed in the installation cavity 4 formed between the pair of shielding inner shells 1, so that the inner shell assembly and the terminal assembly are pre-assembled into an integral whole, and finally the outer protective shell 5 is formed by secondary injection molding on the basis of the inner shell assembly, so that the outer protective shell 5 seals and covers the outer side of the shielding inner shell 1 and extends to cover part of the terminal wire 3. The high-voltage female terminal connector using the technical solution integrates the inner shell assembly and the outer protective shell 5 into an integral structure by insert injection molding, which eliminates secondary processing procedures such as clamping, riveting, etc., greatly shortens the assembly time and reduces the labor and material costs, simplifies the installation process, improves the production efficiency, and at the same time ensures the sealing of the inner shell assembly and the wire installation connection by using the insert injection molding method, improves the product sealing protection level, protects the electrical contacts and circuits inside the connector from the external environment, can withstand high pressure and harsh environment, and is widely used in electrical connections of new energy vehicles.

[0037] In combination Figures 1-3 As shown, the positioning column 12 and the positioning groove are arranged between the pair of shielding inner shells 1 to form a positioning fit, and the positioning connection of the two shielding inner shells 1 is realized through the positioning fit of the positioning column 12 and the positioning groove, and then the pair of shielding inner shells 1 are fixedly connected through ultrasonic welding, so as to ensure the sealing of the joint of the two shielding inner shells. The inner shell assembly further includes a rear cover 6 fixed at one end of the pair of shielding inner shells 1. As a preferred embodiment, the rear cover 6 surrounds the wire inlet end 41 and is provided with a wire passing hole 61 through which the terminal wire 3 passes. The sealing sheath part 51 is wrapped outside the rear cover 6, that is, the rear cover 6 and the shielding inner shell 1 are assembled into an integral whole, and then the outer protective shell 5 is integrally formed by secondary injection molding, and the sealing sheath part plays a sealing protection role on the rear cover and the wire part extending from the rear cover.

[0038] In order to ensure the internal sealing between the terminal wire 3 and the rear cover 6, referring to Figures 3-4The terminal wire 3 is provided with a sealing sleeve 7 between the terminal wire 3 and the rear cover 6, the sealing sleeve 7 is arranged at the entrance of the wire hole 61 along the length direction of the terminal wire, the sealing sleeve 7 comprises a tapered portion 71 and a plurality of annular protruding portions 72, the plurality of annular protruding portions 72 are arranged between the terminal wire 3 and the inner wall of the wire hole 61 by extrusion, the tapered portion 71 is arranged at the entrance of the wire hole 61 by extrusion, and a bevel structure matched with the tapered portion 71 is arranged at the entrance of the wire hole 61, the structure is arranged, the tapered portion 71 is arranged at the entrance of the wire hole 61 by close cooperation to form a self-sealing mechanism, so as to realize sealing connection at the entrance of the wire hole 61, and the plurality of annular protruding portions 72 play a multi-segment sealing role between the terminal wire 3 and the inner wall of the wire hole 61, in addition, the sealing sleeve part 51 of the outer protective shell 5 covers the entire rear cover 6 and the part of the terminal wire extending out of the wire hole 61, which has good sealing, waterproof and dustproof effects, the design realizes the effects of internal and external multi-segment sealing protection and multi-segment structure sealing for the distance of the wire passing through the rear cover and extending into the installation cavity, so as to achieve the required sealing level.

[0039] Further preferably, a shielding ring 8 is arranged on the terminal wire 3 and accommodated in the wire hole 61, the shielding ring 8 is located between the sealing sleeve 7 and one end of the shielding inner shell 1 and in contact with the shielding cover 11, the shielding cover 11 can shield the influence of external electromagnetic waves on the internal circuit of the high-voltage female connector, and the shielding ring 8 can form a ring-shaped conductor around the wire, thereby absorbing electromagnetic waves and dispersing their energy, reducing the electromagnetic radiation of the cable to the surrounding environment during transmission, and maintaining the working stability and reliability of the equipment.

[0040] The rear cover 6 and the pair of shielding inner shells 1 are fixedly connected through a connecting structure, as a specific structure, referring to Figure 4 The connecting structure comprises: a plurality of buckle bosses 13 arranged on the outer wall of one end of the pair of shielding inner shells 1, and a plurality of elastic clamping plates 62 arranged on the rear cover 6 and matched with the plurality of buckle bosses 13 to form clamping cooperation, and the cross section of the rear cover 6 is wedge-shaped, the structure is arranged, the rear cover 6 is connected with the pair of shielding inner shells 1 in a buckle structure mode, and an inner shell assembly is formed, and then the outer protective shell and the inner shell assembly are combined into one body through secondary injection molding.

[0041] In the embodiment, the mounting cavity 4 is provided between a pair of shielding inner shells 1, the female terminal 2 is in a sheet structure inserted into the socket end 42, and the terminal wire 3 is welded or crimped to the female terminal 2. The sheet structure of the female terminal 2 facilitates the welding or crimping operation of the terminal wire, and the plug-in part of the male connector is inserted into the socket end 42 to realize electrical connection with the female terminal 2. Obviously, the female terminal 2 can also be designed in a cylindrical structure or other shapes.

[0042] As shown in Figures 3-4 The wire pressing structure 43 is arranged in the wire inlet end 41 along the terminal wire extension direction, and is used to clamp the terminal wire 3. Each group of wire pressing structures 43 is composed of two wire pressing plates oppositely arranged on a pair of shielding inner shells 1, and a wire clamping groove for clamping the terminal wire 3 is formed between the two wire pressing plates. The structure is fixed by ultrasonic welding according to a pair of shielding inner shells, which guarantees the sealing of the connection, and the terminal wire 3 passing through the wire inlet end is pressed by the multiple groups of wire pressing structures 43. The terminal wire 3 is limited and prevented from loosening in the mounting cavity, the tensile strength of the terminal wire 3 is improved, the terminal wire 3 is prevented from being pulled and loosened from the female terminal 2 by external force, and the connection of the terminal wire is firm, reliable and safe.

[0043] According to the use of the high-voltage female connector with the male connector, in order to guarantee the reliability of the connection between the high-voltage female connector and the male connector, the outer protective shell 5 is rotatably provided with a locking component 9 for locking the connection position of the high-voltage female connector and the male connector. Referring to Figure 1The locking component 9 comprises two rotating arms 91 rotatably connected to the two sides of the outer protective shell 5, a yawing arm 92 connecting the two rotating arms 91, and an arc-shaped connecting slot 93 oppositely arranged on the two rotating arms 91. The two rotating arms 91 are respectively provided with elastic lock catches 94 matched with the first buckles 52 on the two sides of the outer protective shell 5. The yawing arm 92 is provided with a sliding lock catch 95 matched with the second buckle 33 on the top of the outer protective shell 5. It is to be noted that the male connector is provided with a connecting pin penetrating through the arc-shaped connecting slot 93. The advantages of the design are that when the female connector and the male connector are connected, the connecting pin is fixed on the male connector by penetrating through the arc-shaped connecting slot 93, and then the locking component 9 is turned over to move the connecting pin from one end of the arc-shaped connecting slot 93 to the other end. In this process, the female connector and the male connector are locked together, and the first locking is realized by the elastic lock catches 94 on the two rotating arms 91 matched with the first buckles 52, and the second locking is realized by the sliding lock catch 95 on the yawing arm 92 matched with the second buckle 33. Therefore, the female connector and the male connector are multi-locked, which prevents the female connector and the male connector from being loosened after being connected, and the matched locking is reliable, the installation stability is good, and the safety and reliability of the connector product are ensured.

[0044] Obviously, the above embodiments are only examples for clearly illustrating the present application, and are not intended to limit the embodiments. Based on the above description, other different forms of changes or variations can be made by those skilled in the art. All the embodiments do not need to be exhausted, and the obvious changes or variations derived therefrom are still within the protection scope of the present application.

Claims

1. A high voltage female connector, characterized by, The utility model relates to a terminal assembly and a terminal assembly manufacturing method, and relates to the technical field of electrical equipment. The utility model discloses a terminal assembly and a terminal assembly manufacturing method, and relates to the technical field of electrical equipment. The utility model discloses a terminal assembly and a terminal assembly manufacturing method, and relates to the technical field of electrical equipment. The utility model discloses a terminal assembly and a terminal assembly manufacturing method, and relates to the technical field of electrical equipment.

2. The high-voltage female connector of claim 1, wherein: The utility model discloses a terminal assembly and a terminal assembly manufacturing method, and relates to the technical field of electrical equipment.

3. The high-voltage female connector of claim 2, wherein: The utility model discloses a terminal assembly and a terminal assembly manufacturing method, and relates to the technical field of electrical equipment.

4. The high-voltage female connector of claim 3, wherein: The utility model discloses a terminal assembly and a terminal assembly manufacturing method, and relates to the technical field of electrical equipment.

5. The high-voltage female connector of claim 3, wherein: The utility model discloses a terminal assembly and a terminal assembly manufacturing method, and relates to the technical field of electrical equipment.

6. The high-voltage female connector of any one of claims 1-5, wherein: The utility model discloses a terminal assembly and a terminal assembly manufacturing method, and relates to the technical field of electrical equipment.

7. The high-voltage female connector of claim 1, wherein: The utility model discloses a terminal assembly and a terminal assembly manufacturing method, and relates to the technical field of electrical equipment.

8. The high-voltage female connector of claim 7, wherein: The utility model discloses a terminal assembly and a terminal assembly manufacturing method, and relates to the technical field of electrical equipment.

9. The high-voltage female connector of claim 2, wherein: The utility model discloses a terminal assembly and a terminal assembly manufacturing method, and relates to the technical field of electrical equipment. The utility model discloses a terminal assembly and a terminal assembly manufacturing method, and relates to the technical field of electrical equipment. The utility model discloses a terminal assembly and a terminal assembly manufacturing method, and relates to the technical field of electrical equipment. The utility model discloses a terminal assembly and a terminal assembly manufacturing method, and relates to the technical field of electrical equipment. The utility model discloses a terminal assembly and a terminal assembly manufacturing method, and relates to the technical field of electrical equipment. The utility model discloses a terminal assembly and a terminal assembly manufacturing method, and relates to the technical field of electrical equipment. 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The high-voltage female connector of claim 9, wherein: The outer protective shell (5) is provided with a locking part (9) rotatably arranged on the outer protective shell (5), the locking part (9) comprises two rotating arms (91) rotatably connected to two sides of the outer protective shell (5), a yaw arm (92) connecting the two rotating arms (91), and an arc-shaped connecting groove (93) oppositely arranged on the two rotating arms (91), the two rotating arms (91) are respectively provided with two arc-shaped groove holes, and the two arc-shaped groove holes are matched with the elastic lock (94) of the first buckle (52) on the two sides of the outer protective shell (5), and the yaw arm (92) is provided with a sliding lock (95) matched with the second buckle (33) on the top of the outer protective shell (5).

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