KR100844589B1 - Antenna connector having switching function - Google Patents

Abstract

A connector having a switching function for connecting an antenna is provided to configure a switch-type terminal by using the elastic member of a coil spring, thereby simplifying a switching structure between an internal antenna and an external antenna to implement the switching function generally. A connector having a switching function for connecting an antenna comprises a housing(110), a switching terminal unit(120), and an insulating unit(130). The switching terminal unit cuts off an internal antenna and connects with an external antenna if the connection pin(310) of an external antenna connection plug(300) is connected to the switching terminal unit. The insulating unit holds an electric insulation state between the housing and the switching terminal unit. The switching terminal unit comprises a pin connection member(121), a first fixing terminal piece(122), an elastic member(123), and a second fixing terminal piece(124). The front end of the first fixing terminal piece is in contact with the protrusion of the pin connection member to hold the electric connection state when the pin connection member moves forward to a plug insertion portion. The protrusion of the pin connection member is separated from the front end of the first fixing terminal piece to release the electric connection state when the pin connection member is compressed and moves backward.

Description

Connector for connecting antenna with switching function {Antenna connector having switching function}

1 is a perspective view illustrating a connector for connecting an antenna having a switching function according to the present invention;

2 is an exploded perspective view of a connector for connecting an antenna having a switching function according to the present invention;

3 is a cross-sectional view of the connector for connecting the antenna having a switching function according to the present invention,

4 is a cross-sectional view illustrating a coupling state of an external antenna connection plug to an antenna connection connector having a switching function according to the present invention;

5 is a diagram illustrating an installation circuit of a connector for connecting an antenna having a switching function according to the present invention.

*** Description of the symbols for the main parts of the drawings ***

100: connector 110: housing

112: plug insertion portion 113: step

114: receiving portion 115: fixing pin

116: through hole 120: switching terminal means

121: pin connecting member 122: first fixed terminal piece

123: elastic member 124: second fixed terminal piece

130: insulation means 131: guide insulation member

132: insulation member for the first finish 133: insulation member for the second finish

200: printed circuit board 202: built-in antenna

204: radio wave receiver 300: plug

310: connecting pin

The present invention relates to an antenna connector having a switching function, and more particularly, in the RF communication device including various wireless communication devices by installing a switch-type terminal inside the connector for connecting the external antenna is not connected to the external antenna Normally, when the built-in antenna is connected to the radio wave receiver through the switch type terminal, and when the external antenna connection plug is coupled to the connector, the built-in antenna is blocked and the external antenna is connected to the radio wave receiver according to the reception sensitivity of the radio wave. The present invention relates to an antenna connection connector having a switching function for selectively connecting and using an external antenna and an internal antenna.

In general, an RF communication device, including various wireless communication devices, has an antenna for transmitting and receiving various wireless communication data or is connected externally.

At this time, the built-in antenna is installed inside the case of the device is directly connected to the radio receiver, the external antenna is fixed to be connected to the radio receiver of the printed circuit board has a form in which the external antenna contact is exposed to the outside of the case. Has a configuration interconnected via a connector.

Most conventional connectors used to connect external antennas include a housing having a plug insertion hole formed in an upper center portion thereof, and a fixing pin protruding from a bottom portion thereof for fixing to a ground terminal of a printed circuit board; An insulating member having a pin insertion hole and inserted into the housing to electrically insulate the housing itself from the board connecting pin and to fix the board connecting pin; It is fixed to the pin insertion hole of the insulating member, the lower end is fixed to the printed circuit board and the upper end is connected to the board connecting pin of the external antenna plug detachably connected; consists of.

On the other hand, for most wireless communication devices, antennas are produced in a built-in type and an external type according to the purpose of the corresponding device. Although reception may be poor, wireless communication information may not be received in a place where reception sensitivity is not good without using an external antenna.

Nevertheless, most conventional wireless communication devices are manufactured by dividing the antenna into a built-in type and an external type. If a wireless communication device having a built-in antenna is mounted on a mobile or a car, such as when passing a poor reception sensitivity while moving There was a problem that can not use a wireless communication device.

On the other hand, even when a connector for connecting an external antenna is additionally installed in a wireless communication device having a built-in antenna, a conventional external antenna connection connector does not have a switching function. The communication device may operate normally, but when the external antenna is connected to the connector for external antenna connection, the built-in antenna and the external antenna are connected in parallel to the radio receiver at the same time, so that impedance matching is not performed and thus the reception sensitivity is lowered. There is a problem.

In order to solve such a problem of the conventional connector, the applicant has filed a Utility Model Registration No. 0404096.

The utility model registration includes a housing in which a plug insertion hole is formed in an upper center portion, and fixing pins protruding from the bottom or one side thereof are fixed to a ground terminal of a printed circuit board; An insulating member having a pin insertion hole and a terminal storage chamber connected in series and inserted into the housing to electrically insulate the housing itself from the switch-type terminals; A switch-type terminal installed in the terminal housing of the insulating member and selectively connecting an internal antenna or an external antenna to a radio wave receiver in response to coupling of an external antenna connection plug; In this case, the switch-type terminal is installed inside the connector for external antenna connection so that the built-in antenna is connected to the radio wave receiver through the switch-type terminal in the normal case when the external antenna is not connected, and the plug for connecting the external antenna Is coupled to the connector, the built-in antenna is blocked and the external antenna is connected to the radio receiver so that the external antenna and the built-in antenna can be selectively connected according to the reception sensitivity of the radio wave to maintain the optimal reception state as well as the antenna In the use of It has the advantage of being able to greatly improve the compatibility other.

By the way, the registered utility model has a configuration that the switch-type terminal is provided with a fixed terminal and a movable terminal integrally, the structure is complicated by manufacturing by bending several times, in particular, the movable terminal of the switch-type terminal is formed integrally with the fixed terminal As the pins of the external antenna connection plug are in contact with each other for a long time, there is a risk of loosening or breakage.

In addition, since the external terminal and the internal antenna are connected in parallel at the same time due to breakage of the switch terminal during long-term use, impedance matching is not performed, which may reduce reception sensitivity.

On the other hand, the structure of the switch-type terminal has a problem that the volume of the overall connector is large.

Therefore, to solve these problems, the object of the present invention is to improve the structure of the connector to switch to receive radio waves only through the external antenna when the external antenna connection plug is connected to maintain a stable reception sensitivity even long-term use The present invention provides a connector for connecting an antenna having a switching function.

Another object of the present invention is to provide a connector for connecting an antenna having a switching function to simplify the switching structure of such an internal antenna and an external antenna to have a compact structure.

The present invention for achieving the above object;

A plug insertion portion is formed at the front of the body, and an accommodation portion defined by the step is extended at the rear thereof, and a housing formed by forming a through hole communicating with the accommodation portion at one side of the body, and a connection pin for a plug for connecting an external antenna. When connected, it is characterized by consisting of a switching terminal means for cutting off the internal antenna and connected to the external antenna.

The switching terminal means may include: a first fixed terminal piece provided at a through hole of the housing, the front end of which protrudes into the receiving part of the housing, a second fixed terminal piece provided at the receiving part of the housing, and the accommodation It is inserted and installed while maintaining an electrical connection state with the second fixed terminal piece in the part, the plug is inserted into the plug of the housing is connected to the external antenna connection when the connecting pin of the external antenna connection plug is connected to the first fixed When the pin connecting member electrically disconnected from the terminal piece and the plug for connecting the external antenna are separated, the pin connecting member is urged to press the pin connecting member to maintain the electrical connection state to the first fixed terminal piece. Characterized in that made.

At this time, the fixing pin which is fixed to the ground terminal of the printed circuit board is formed outside the housing body.

In addition, a seating groove in which the front end portion of the plug for external antenna connection is further formed on the inner circumference of the upper end of the plug insertion portion is further formed.

At this time, the support groove is formed on the front outer periphery of the external antenna connection plug, the support ring is characterized in that the O-ring inserted into the seating groove is fastened.

On the other hand, the pin connecting member is formed with a pin seating groove in which the connecting pin of the plug for connecting the external antenna is seated at the front, and the engaging jaw contacting the front end of the first fixed terminal piece protruding into the receiving portion at the outer periphery thereof. And a guide hole having a predetermined depth into which the front end of the second fixed terminal piece is inserted at a rear end thereof.

In addition, the elastic member is fastened to the outside of the first fixed terminal piece is characterized in that the coil spring for pressing the rear end of the pin connecting member.

And, it is characterized in that the insulating means for maintaining an electrically insulated state of the housing and the switching terminal means.

At this time, the insulating means; A guide insulating member which is in close contact with the stepped portion of the housing and has a guide hole in which a pin contact member can move in the front and rear direction, and is provided in the through hole of the housing to insulate the first fixed terminal piece from the housing; And a second closing insulating member for maintaining a state, and a second finishing insulating member for retaining an insulating state between the second fixed terminal piece and the housing.

On the other hand, the first and second fixed terminal pieces are exposed to the outside of the housing, the first and second extensions, respectively, the first extension is electrically connected to the internal antenna of the printed circuit board, the second extension The unit is characterized in that it is electrically connected to the radio wave receiver of the printed circuit board.

Hereinafter, with reference to the accompanying drawings, the antenna connection connector having a switching function according to the present invention will be understood by the embodiments described in detail below.

At this time, Figure 1 is a combined perspective view showing a connector for antenna connection having a switching function according to the invention, Figure 2 is an exploded perspective view of the connector for antenna connection having a switching function according to the invention, Figure 3 is a present invention 4 is a cross-sectional view illustrating a coupling state of an external antenna connection plug to an antenna connection connector having a switching function according to the present invention, and FIG. The installation circuit diagram of the antenna connection connector having a switching function according to.

First, according to FIGS. 1 to 4, the antenna connection connector 100 having a switching function according to the present invention is connected to a housing 110 fixed to a printed circuit board 200 and an external antenna connection plug 300. When the pin 310 is connected, the internal terminal blocks the internal antenna and the switching terminal means 120 to which the external antenna is connected, and the insulating means 130 for maintaining the electrical insulation state of the housing 110 and the switching terminal means 120. It consists of.

Hereinafter, the components of each part of the connector for antenna connection having a switching function according to the present invention will be described in detail.

Like the conventional connector, the housing 110 has a plug insertion portion 112 formed at the front of the body 111 and an accommodation portion 114 partitioned by the stepped 113 is formed at the rear thereof. The fixing pins 115 fixed to the ground terminal of the printed circuit board 200 are protruded from the outer bottom or one side of the body 111.

In addition, the side of the body 111 is formed with a through hole 116 in communication with the receiving portion 114.

In addition, a seating groove 112a is formed at an inner circumference of the upper end of the plug insertion part 112.

When the front end portion 302 of the external antenna connection plug 300 is inserted into the plug insertion portion 112 by the above configuration, the front end portion 302 of the external antenna connection plug 300 is connected to the housing 110. It is in close contact with the step (113) of the) is no longer inserted deeply.

Meanwhile, a support groove 303 is formed at the front outer circumference of the external antenna connection plug 300, and an O-ring 304 made of copper or copper alloy is fastened to the support groove 303.

When the front end portion 302 of the external antenna connection plug 300 is inserted into the plug insertion portion 112 by this structure, the O-ring 304 of the external antenna connection plug 300 is connected to the housing 110. The external antenna connection plug 300 is prevented from being separated from the housing 110 by being seated in the seating groove 112a of the plug insertion part 112.

On the other hand, the switching terminal means 120 is to block the internal antenna and to connect the external antenna when the connection pin 310 of the external antenna connection plug 300 is connected, the switching terminal means 120 is the accommodation It is inserted into the portion 114 and penetrates through the through-hole 116 of the housing 110, the pin connecting member 121 and the front end portion is projected forward and backward to the plug insertion portion 112 of the housing 110 The first fixing terminal piece 122 in contact with the pin connecting member 121 and the inside of the receiving portion 114 to press the pin connecting member 121 to the plug insertion portion 112 An elastic member 123 and a second fixed terminal piece 124 provided at the rear end of the pin connecting member 121 to maintain an electrical connection state with the pin connecting member 121.

More specifically, the pin connecting member 121 has a pin seating groove 121a in which the connecting pin 310 of the plug 300 for connecting the external antenna is seated at the front side, and a locking jaw at the rear outer periphery thereof. 121b) is formed, and at the rear end thereof, a guide hole 121c having a predetermined depth is formed at the center thereof, so that forward and backward movement is possible in a predetermined section in the front and rear.

On the other hand, the front end portion of the first fixed terminal piece 122 which is installed through the through hole 116 of the housing 110 is located in front of the locking step (121b) of the pin connecting member 121 and the pin connecting member ( 121 is non-contacted when reversing or contacted when advancing.

That is, in the state where the pin connecting member 121 is advanced to the plug inserting portion 112, the front end of the first fixed terminal piece 122 is in contact with the locking step 121b of the pin connecting member 121 to be electrically In the state in which the pin connection member 121 is pressed and retracted, the locking step 121b of the pin connection member 121 is separated from the front end of the first fixed terminal piece 122. As a result, the electrical connection state is released to perform a switching function.

In addition, a second fixed terminal piece 124 is provided in the front-rear direction in the receiving portion 114 of the housing 110, and the front end of the second fixed terminal piece 124 is the rear end of the pin connecting member 121. It is inserted into the guide hole 121c formed in.

By the above configuration, the pin connecting member 121 is pressurized, and when the pin connecting member 121 is retracted, the electrical connection state between the pin connecting member 121 and the first fixed terminal piece 122 is released and As the guide hole 121c is guided along the front end of the two fixed terminal pieces 124, the pin connecting member 121 is reversed.

At this time, the outer side of the first fixed terminal piece 122 has a structure in which the coil spring, which is an elastic member 123, is fastened so that the elastic force of the coil spring, which is the elastic member 123, is released when the physical force applied to the pin connecting member 121 is released. The pin connecting member 121 is advanced by the restoring force so that the engaging jaw 121b of the pin connecting member 121 contacts the front end of the first fixed terminal piece 122 so that the first fixed terminal piece 122 is contacted. And the second fixed terminal piece 124 is maintained in an electrically connected state.

Since the switching terminal means 120 is manufactured by dividing the structure into a plurality of parts, the contact and separation operations between the component parts become clear and are restored by the restoring force of the elastic member 123, compared to the connector of the conventional structure. It becomes relatively compact.

On the other hand, all the elements constituting the switching terminal means 120 is made of a conductive material, so that the switching terminal means 120 is supported or supported on the housing 110 to maintain an insulation state with the housing 110 which is also made of a conductive material. When fixing, the insulating means 130 is used.

Such insulation means 130 is preferably composed of a synthetic resin material.

More specifically, the insulating means 130 is in close contact with the front stepped portion of the receiving portion 114 of the housing 110 and the guide hole 131a in which the pin connecting member 121 can move in the front and rear direction at the center thereof. The guide insulating member 131 and the first fixed terminal piece 122 are formed to maintain the electrical insulation state when the insertion hole is fixed to the through hole 116 formed on the side surface of the housing 110. The first closing insulating member 132 inserted into the through hole 116 and the second fixing terminal piece 124 are electrically fixed at the rear end of the receiving portion 114 of the housing 110. It is composed of a second insulating member 133 for finishing the rear end of the receiving portion to maintain an insulating state.

By further comprising the insulation means 130, the electrical insulation between each of the components of the housing 110 and the switching terminal terminal 120 to block the noise and the like to effect the stable signal reception There is.

Hereinafter, an installation application example and an operation process of an antenna connection connector having a switching function according to the present invention will be described with reference to FIGS. 1 to 5.

First, the antenna connection connector 100 having a switching function according to the present invention is installed on a printed circuit board 200 embedded in various wireless communication devices, and the built-in antenna 202 and the radio wave receiver on the printed circuit board 200. 204 is fixedly installed in the case of the wireless communication device in the form connected between.

That is, the first and second extension parts 122a and 124a exposed to the outside of the first and second fixed terminal pieces 122 and 124 of the antenna connection connector 100 having the switching function are printed circuit boards 200, respectively. The electrical connection is made directly to the surface.

In this case, the first extension part 122a of the first fixed terminal piece 122 is fixed by soldering to maintain an electrical connection with the built-in antenna 202 of the printed circuit board 200 and the second The second extension portion 124a of the fixed terminal piece 124 is fixed by soldering to maintain an electrical connection with the radio wave receiver 204 of the printed circuit board 200.

In this installation state, when the external antenna connection plug 300 is not coupled to the housing 110 of the connector 100, the switching terminal means mounted inside the receiving portion 114 of the housing 110. The pin connecting member 121 is pressed by the elastic restoring force of the elastic member 123 fitted to the second fixed terminal piece 124 of 120 to protrude into the plug insertion portion 112 of the housing 110. Will be maintained.

At this time, the state in which the pin connecting member 121 is pressed by the elastic restoring force of the elastic member 123 is pressed to advance the pin connecting member 121 so that the housing ( The locking jaw 121b of the pin connecting member 121 is in contact with the front end portion of the first fixed terminal piece 122 that is provided while maintaining an insulation state with the first fixed terminal piece 122 and the second. The electrical connection of the fixed terminal piece 124 is maintained.

That is, when the external antenna connection plug 300 is not coupled to the housing 110 of the connector 100, the first fixed terminal piece 122 and the second fixed terminal piece 124 of the switching terminal unit 120 are connected. ) Maintains an electrical connection state, and thus receives various wireless communication information to the radio wave receiver 204 through the built-in antenna 202 connected to the first fixed terminal piece 122.

On the other hand, when the external antenna connection plug 300 is coupled to the housing 110 of the connector 100 in this state, the connection pin 310 of the external antenna connection plug 300 is a pin connecting member ( When the pin connecting member 121 is inserted into the pin seating groove 121a formed at the front end of the 121 and continues to be pressurized, the pin connecting member 121 is reversed, and the front end of the external antenna connection plug 300 is connected to the housing 110. When the stepped step 113 is almost reached, the front part 302 of the external antenna connection plug 300 is inserted and supported in the seating groove 112a formed at the inner circumference of the upper end of the plug insertion part 112.

That is, the outside of the O-ring 304 made of copper or copper alloy material supported by the support groove 303 of the plug 300 for external antenna connection is fastened to the seating groove 112a of the plug insertion portion 112 of the housing 110. As a result, the external antenna connection plug 300 is prevented from being separated and separated from the plug insertion unit 112.

On the other hand, when the connecting pin 310 of the external antenna connection plug 300 is inserted into the pin seating groove 121a formed at the front end of the pin connecting member 121 and is retracted, the pin connecting member 121 moves backward and the pin The electrical connection state between the connecting member 121 and the first fixed terminal piece 122 is released.

Accordingly, the connecting pin 310 of the external antenna connection plug 300 maintains the electrical connection with the second fixed terminal piece 124, and the first fixed terminal piece 122 is electrically insulated. Will be maintained.

Therefore, the radio receiver 204 receives various wireless communication information through an external antenna (not shown) of the external antenna connection plug 300 connected to the second fixed terminal piece 124.

Of course, when the external antenna connection plug 300 is separated from the antenna connection connector 100 having the switching function according to the present invention, the pin connecting member is formed by the elastic restoring force of the coil spring, which is the elastic member 123. Obviously, 121 is advanced to maintain the electrical connection between the first fixed terminal piece 122 and the second fixed terminal piece 124.

Although the preferred embodiment of the present invention has been described above, the scope of the present invention is not limited thereto, and the scope of the present invention extends to the scope of the present invention to be substantially equivalent to the embodiment of the present invention. Various modifications can be made by those skilled in the art without departing from the scope of the present invention.

As can be seen from the above description, according to the present invention, when the plug for connecting the external antenna is connected, the structure of the switching terminal means for switching switching to receive radio waves only through the external antenna can be improved to maintain stable reception sensitivity even when used for a long time. There is an advantage.

In addition, the switch-type terminal is composed of a plurality of independent components, and by using a coil spring that is an elastic member, the switching structure of the internal antenna and the external antenna is simplified, so that the connector for connecting the antenna having the switching function as a whole is compact. .

Claims (11)

A plug insertion portion is formed at the front of the body, and an accommodation portion defined by the step is extended at the rear thereof, and a housing formed by forming a through hole communicating with the accommodation portion at one side of the body, and a connection pin for a plug for connecting an external antenna. The connector for connecting an antenna having a switching function, characterized in that consisting of a switching terminal means for connecting the external antenna and the internal antenna when connected. delete The method of claim 1, The switching terminal means may include: a first fixed terminal piece provided at a through hole of the housing, the front end of which protrudes into the receiving part of the housing, a second fixed terminal piece provided at the receiving part of the housing, and the accommodation It is inserted and installed while maintaining an electrical connection state with the second fixed terminal piece in the part, the plug is inserted into the plug of the housing is connected to the external antenna connection when the connecting pin of the external antenna connection plug is connected to the first fixed When the pin connecting member electrically disconnected from the terminal piece and the plug for connecting the external antenna are separated, the pin connecting member is urged to press the pin connecting member to maintain the electrical connection state to the first fixed terminal piece. Connector for connecting antenna having a switching function, characterized in that made. The method of claim 1, The connector for connecting the antenna having a switching function, characterized in that the fixing pin is fixed to the ground terminal of the printed circuit board outside the housing. The method of claim 1, The connector for connecting the antenna having a switching function, characterized in that the inner groove of the upper end of the plug insertion portion is further formed with a seating groove for seating the front end of the plug for external antenna connection. The method of claim 5, A support groove is formed at a front outer circumference of the external antenna connection plug, and the support groove is connected to the support groove, wherein the O-ring inserted into the seating groove is fastened. The method of claim 3, wherein The pin connecting member is formed with a pin seating groove in which the connecting pin of the plug for connecting the external antenna is seated on the front side, and a latching jaw in contact with the front end of the first fixed terminal piece protruding into the receiving portion is formed at the outer circumference thereof. And, the rear end of the connector for the antenna connection with a switching function, characterized in that the guide hole of a predetermined depth is formed is inserted into the front end of the second fixed terminal piece. The method of claim 3, wherein The elastic member is a connector for an antenna connection having a switching function, characterized in that the coil spring is fastened to the outside of the first fixed terminal piece to press the rear end of the pin connecting member. The method of claim 3, wherein And an insulation means for maintaining an electrical insulation state between the housing and the switching terminal means. The method of claim 9, The insulation means; Insulation member for the guide is in close contact with the housing end of the housing and the guide hole is formed in the center to move the pin connecting member in the front and rear directions; A first closing insulating member provided in a through hole of the housing to maintain an insulating state between the first fixed terminal piece and the housing; And a second closing insulation member provided at a rear end of the housing and configured to maintain an insulation state between the second fixed terminal piece and the housing. The method of claim 3, wherein The first and second fixed terminal pieces are exposed to the outside of the housing, and the first and second extensions thereof, respectively, wherein the first extensions are electrically connected to the internal antenna of the printed circuit board, and the second extensions are printed. An antenna connection connector having a switching function, characterized in that electrically connected to the radio wave receiving portion of the circuit board.

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