CN111834825B

CN111834825B - High voltage connector

Info

Publication number: CN111834825B
Application number: CN201911336766.6A
Authority: CN
Inventors: 姜智元
Original assignee: Korea Electric Terminal Co Ltd
Current assignee: Korea Electric Terminal Co Ltd
Priority date: 2019-04-19
Filing date: 2019-12-23
Publication date: 2022-02-08
Anticipated expiration: 2039-12-23
Also published as: CN111834825A; KR102014406B1

Abstract

The present invention relates to a high voltage connector having a shield shell capable of improving production efficiency and reducing production costs by applying a hook fixing structure to a connection portion, the high voltage connector including: a housing; an inner shell arranged inside the outer shell; and a shielding case disposed between the outer case and the inner case and used for shielding electrical interference. The shield case is bent in a tubular shape such that both side end portions thereof are brought into contact to form a connection portion, and fastening units are provided at both side end portions of the shield case forming the connection portion. The fastening unit includes a hook protruding from one end of the shield case, and a hook fixing portion formed at the other end of the shield case, and the shield case maintains a tubular shape when the hook is fixed by being caught by the hook fixing portion.

Description

High voltage connector

Technical Field

The present invention relates to a high-voltage connector, and more particularly, to a high-voltage connector having a shield case for shielding electrical interference such as electromagnetic waves when a current or a signal is transmitted.

Background

As the number of electronic components used in automobiles increases, the proportion of wire harnesses used to connect the electronic components also increases. Since various voltages ranging from low voltage to high voltage are supplied according to the use and function of the electronic component, connectors used in the electronic component are also classified into low voltage and high voltage.

Among the above connectors, a high voltage connector is connected to a cable having a high current, and an electromagnetic wave, noise, and the like are generated around the cable due to the high current. In order to shield such electric interference such as electromagnetic waves and noise, a shield case is provided inside the high-voltage connector.

Korean granted utility model publication No. 20-0479351 (1/12/2016) discloses a connector having a shield shell for eliminating electromagnetic waves and noise.

The above-mentioned connector includes: a housing forming an appearance of the connector; an inner shell arranged inside the outer shell; and a shielding case disposed between the outer case and the inner case and configured to shield electrical interference.

The shield shell is made in a hollow tubular shape so as to be provided between the outer shell and the inner shell of the connector. In more detail, after the conductive metal plate is bent into a tubular shape, the bonding concave-convex portion formed on the bonding wire is compressed or welded.

However, in order to compress or weld the coupling concave-convex portion of the shield case, an additional device is required, which causes an increase in production cost, and when the compression and welding process is further performed, there is a problem in that production efficiency is lowered.

Further, when the joining concave-convex portions are separated by applying an external force, the joining cannot be performed again, which causes a trouble of performing the compression and welding processes again.

Documents of the prior art

Patent document

Korean granted Utility model publication No. 20-0479351 (2016 year 01, 12 months)

Disclosure of Invention

The present invention has been made to solve the above-described conventional problems, and an object of the present invention is to provide a high-voltage connector having a shield shell, which can improve production efficiency and reduce production costs by applying a hook fixing structure to a connecting portion.

Further, it is an object of the present invention to provide a high voltage connector having a shield case which can be easily re-coupled for use even if a connection portion is separated by an external force or the like, and which can automate a connector assembling process because the connection portion can be coupled by one key.

The high voltage connector of the present invention comprises: a housing; an inner shell arranged inside the outer shell; and a shielding case disposed between the outer case and the inner case and configured to shield electrical interference.

The shield case is bent in a tubular shape such that both side end portions thereof are brought into contact to form a connection portion, and fastening units are provided at both side end portions of the shield case forming the connection portion.

The fastening unit includes a hook protruding from one end of the shield case, and a hook fixing portion formed at the other end of the shield case, and the shield case maintains a tubular shape when the hook is fixed by being caught by the hook fixing portion.

The hook includes an extension protruding from one end of the shield case and a locking member bent at an end of the extension. Further, the hook fixing portion includes: a locking hole formed at the other end of the shielding case for inserting the locking piece; and a fixing member for fixing and fixing the locking member.

That is, the hook has an L-shape in which the locking piece is bent upward from an end of the extension piece, and the anchor has an n-shape in which the anchor protrudes upward so as to be able to receive the extension piece. Therefore, when the hook is fastened to the hook fastening portion, the hook is inserted into a lower portion of the hook fastening portion and fastened.

The present invention applies a hook fixing structure composed of a hook and a hook fixing portion to a connecting portion of a shield shell, thereby enabling fastening in a manner that the shield shell maintains a tubular shape without additionally performing processes such as compression, welding, and the like. Therefore, the production efficiency of the high voltage connector including the shield case can be improved and the production cost can be reduced.

Further, according to the present invention, the connecting portion of the shield shell can be coupled by one key by using the hook and the hook fixing portion, and thus, the assembling process with the connector housing can be automated. In particular, even if the connection portions of the shield cases are separated by an external force, they can be easily recombined for use.

In addition to the above-described effects, the following embodiments will be described while describing specific effects of the present invention.

Drawings

Fig. 1 is a perspective view of a high voltage connector according to an embodiment of the invention.

Fig. 2 is a perspective view, partially in section, of a high voltage connector according to an embodiment of the present invention.

Fig. 3 is a diagram showing a state before a shield shell is fastened in the high-voltage connector of the embodiment of the invention.

Fig. 4 is an enlarged view of a fastening unit of the shield case shown in fig. 3.

Fig. 5 is a diagram showing a state after a shield shell is fastened in the high-voltage connector of the embodiment of the invention.

Fig. 6 is an enlarged view of a fastening unit of the shield case shown in fig. 5.

Description of reference numerals

1: high-voltage connector 100: outer casing

200: inner shell 300: shielding case

350: hook 360: hook fixing part

Detailed Description

Embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following, in describing the embodiments of the present invention, and in assigning reference numerals to constituent elements of respective drawings, the same constituent elements are assigned the same reference numerals as much as possible even if they appear in different drawings.

The present invention relates to a connector for connecting electronic components for vehicles, and more particularly, to a high-voltage connector which can be used for shielding electric interference such as electromagnetic waves when electric current and signals are transmitted.

As shown in fig. 1 and 2, the high voltage connector includes a housing 100 forming an external appearance of the connector. The inner case 200 is disposed inside the outer case 100, and the shield case 300 is disposed between the outer case 100 and the inner case 200.

The housing 100 has a tubular shape with a rectangular cross section extending along the connector coupling direction. The front end of the housing 100 is opened to allow a counterpart connector (not shown) to be inserted and coupled. A flange 110 for disposing a high voltage connector is provided at the rear end of the housing 100.

A guide unit 120 and a lock unit 130 are provided on an outer wall of the housing 100, the guide unit 120 guiding a coupling direction of a counterpart connector (not shown), and the lock unit 130 maintaining a coupled state with the counterpart connector. A receiving space 140 into which a mating connector is inserted is formed in the housing 100, and the inner housing 200 and the shield housing 300 are provided in the receiving space 140.

Lance grooves 150 for inserting lances 370 of the shield case 300 are formed at both sides of the inner wall of the accommodating space 140. The lances 370 inserted into the lance grooves 150 serve to prevent the shield case 300 inserted from the rear of the housing 100 from being arbitrarily separated.

The inner casing 200 has a tubular shape with a rectangular cross section similar to the outer casing 100. A terminal (not shown) for transmitting current and signals is provided inside the inner case 200, and a shield case 300 for shielding electrical interference such as electromagnetic waves is provided outside.

Guide protrusions 210 for guiding the installation direction of the shield case 300 are formed at the outer wall of the inner case 200, and installation grooves 220 for inserting the shield case 300 are formed between the guide protrusions 210. In this case, the depth of the mounting groove 220 is the same as the thickness of the shield case 300 to prevent the shield case 300 from protruding to the outside of the inner case 200. Therefore, when combined with the counterpart connector, interference due to the portion protruding to the outside of the inner case 200 can be eliminated.

The shield case 300 may be made of conductive metal to effectively shield electromagnetic waves, and may be made by bending one panel to prevent leakage of electromagnetic waves.

As shown in fig. 3 and 4, the shield case 300 is bent into a tubular shape having a rectangular cross section. The bent shield case 300 is divided into a lower panel 310, a first side panel 320a, a second side panel 320b, a first upper panel 330a, and a second upper panel 330 b. In this case, the end of the first upper panel 330a contacts the end of the second upper panel 330b and forms the connection part 340.

Fastening

units

350, 360 are provided at the end of the first upper panel 330a and the end of the second upper panel 330b forming the connection part 340 of the shield case 300. The

fastening units

350 and 360 are units that are fixed so that the bent shield case 300 maintains a tubular shape having a rectangular cross section.

The

fastening units

350 and 360 are composed of hooks 350 and hook fastening portions 360, the hooks 350 protruding from the end of the first upper panel 330a, and the hook fastening portions 360 formed on the end of the second upper panel 330 b. When the hook 350 is fixed by being locked to the hook fixing portion 360, the shield case 300 maintains a tubular shape having a rectangular cross section.

The hook 350 is formed of an extension 352 and a locking piece 354, the extension 352 protrudes from an end of the first upper panel 330a, and the locking piece 354 is bent from an end of the extension 352. That is, the hook 350 has an L-shape extending from an end of the first upper panel 330a to the second upper panel 330b side and bent upward.

The hook fixing portion 360 is formed at an end of the second upper panel 330b, and includes a locking hole 362 into which the locking piece 354 is inserted, and a fixing member 364 for locking and fixing the locking piece 354. In this case, the fixing member 364 has an upwardly protruding n-shape in such a manner as to be able to receive the extension 352.

Referring to fig. 3 to 6, a fastening process for maintaining the shielding case 300 in a tubular shape having a rectangular cross section is explained.

First, the plate-shaped base material is bent into a tubular shape having a rectangular cross section, and an end of the first upper panel 330a is in contact with an end of the second upper panel 330b to form the connection part 340.

Next, when the hook 350 is inserted from the left side to the right side of the hook fixing portion 360, the hook 350 is locked and fixed to the hook fixing portion 360 by an elastic backlash (spring back) phenomenon of the first upper panel 330 a.

More specifically, when the hook 350 is inserted from the left side to the right side of the hook fixing portion 360, the locking piece 354 of the hook 350 is positioned on the locking hole 362 of the hook fixing portion 360. In this state, since the first upper panel 330a is restored in the reverse direction of bending by the elastic recoil phenomenon, the extension 352 rises and comes into close contact with the fixing member 364, and the locking member 354 penetrates the locking hole 362 and is positioned and fixed on the right side of the fixing member 364.

That is, the

fastening units

350 and 360 of the present embodiment maintain the shielding case 300 in a tubular shape having a rectangular cross section by an elastic recoil phenomenon in which the first upper panel 330a is restored to a bent reverse direction.

Therefore, when the

fastening units

350 and 360 are used, the connection portion 340 of the shield shell 300 can be connected by one key, and thus the assembly process with the

connector housings

100 and 200 can be automated. Also, even if the connection part 340 of the shield case 300 is separated by an external force or the like, it can be easily reunited for use.

On the other hand, a lance 370 for coupling with the housing 100 is formed at the first side panel 320a and the second side panel 320b of the shield case 300, and a slit 380 for inserting the guide protrusion (210 of fig. 2) is formed at the lower panel 310 and the

upper panels

330a, 330b of the shield case 300.

The lance 370 of the shield case 300 is a part inserted into the lance groove 150 formed at both sides of the inner wall of the receiving space 140, preventing the shield case 300 inserted from the rear of the housing 300 from being arbitrarily separated.

The slit 380 of the shield case 300 is a portion for inserting the guide protrusion 210 formed in the inner case 200, and prevents the shield case 300 from protruding to the outside of the inner case 200, thereby eliminating interference caused by the portion protruding to the outside of the inner case 200 when the shield case is coupled to the counterpart connector.

As described above, the present invention is described with reference to the illustrated drawings, but the present invention is not limited to the embodiments and drawings disclosed in the present specification, and it is apparent that various modifications can be made by those skilled in the art within the scope of the technical idea of the present invention. Meanwhile, in describing the embodiment of the present invention, even if the operation and effect of the structure according to the present invention are not explicitly described and explained, the effect predictable by the structure should be recognized.

Claims

1. A high voltage connector comprising a shielding shell arranged between an outer shell and an inner shell and adapted to shield electrical interference,

the shield case is bent in a tubular shape such that both side end portions thereof are brought into contact and form a connection portion, fastening units are provided at both side end portions of the shield case forming the connection portion,

the fastening unit includes a hook protruding at one side end of the shield case and a hook fixing portion formed at the other side end of the shield case,

the shield shell maintains a tubular shape in a state of being fixed by catching the hook to the hook fixing portion,

wherein the hook includes an extension protruding from one end of the shield case and a locking piece bent at an end of the extension,

wherein, the hook fixing part includes:

a locking hole formed at the other end of the shield case for inserting the locking piece; and

a fixing member for fixing and fixing the locking member,

wherein the hook has an L-shape in which the retainer is bent upward from an end of the extension,

wherein the fixing member is n-shaped and protrudes upwards in a manner of being capable of accommodating the extending member,

wherein the hook is inserted into a lower portion of the hook fixing part and fixed when the hook and the hook fixing part are fastened,

wherein a bending length of the retainer is the same as a thickness of the extension, a protruding height of the holder is the same as the thickness of the extension,

wherein the shield case is bent in a rectangular box shape opened in front and rear, the connection part is located on an upper surface of the shield case,

wherein the upper surface of the shield case includes a first upper panel and a second upper panel, the first upper panel is disposed at one side of the shield case, the second upper panel is disposed at the other side of the shield case, a width of the first upper panel is greater than a width of the second upper panel,

the hook is projected from an end of the first upper panel, the hook fixing portion is provided on an end of the second upper panel,

restricting the first upper panel from being restored in an opposite direction by elastic recoil when the hook is locked and fixed to the hook fixing portion,

wherein a guide protrusion is formed around the inner case,

a slit for inserting the guide protrusion is formed around the shield case,

wherein a lance for coupling with the housing is formed at a side of the shield case, and a lance groove for inserting the lance is formed at the housing.