KR102633070B1 - Connector - Google Patents

Abstract

The present invention provides a connector capable of forming uniform contact pressure. The connector capable of forming uniform contact pressure includes a housing having a slot formed on one side to allow a circuit board to enter the internal space; a terminal having a contact portion disposed in the inner space of the housing to contact a contact point of the circuit board; a pressing portion disposed at the top of the inner space of the housing and capable of moving up and down; and a forced pressing unit that enters the internal space through an inlet hole formed on the other side of the housing and forces the pressing unit to move downward. Preferably, the circuit board is pressed downward by the pressing portion to form a constant contact pressure between the contact portion and the contact point.

Description

Connector capable of forming uniform contact pressure {Connector}

The present invention relates to a connector, and more specifically, to a connector capable of forming a uniform contact pressure that can keep the contact pressure and overlap amount between terminals and the board constant in response to the thickness of the board.

In general, a card edge connector is a connector used for electrical connection with a circuit board with a contact strip provided along the edge.

A typical card edge connector is configured to receive a mating edge of a circuit board (an edge provided with a contact strip) and a plurality of contact pads adjacent thereto. That is, the card edge connector includes a housing provided with a slot to accommodate the mating edge of the circuit board, and a plurality of terminals spaced at regular intervals on one or both sides of the slot.

A sexual slot is formed on one side of the housing, and another slot into which the terminal is inserted is formed on the other side.

Here, each terminal consists of a contact part that contacts the contact strip of the circuit board and a barrel part to which the cable is connected.

The plurality of terminals are inserted into the interior of the housing through different slots formed on the other side of the housing.

Therefore, the contact parts of multiple terminals are located side by side. The contact portion may have a bending shape and have a certain degree of elasticity. And a portion of the outer circumference that is bent may be in contact with contact points of the circuit board.

Meanwhile, the circuit board having the first thickness is positioned by entering the internal space of the housing through a slot formed on one side of the housing.

At this time, the circuit board can push the contact parts of the terminals downward. Accordingly, contact points formed on the lower surface of the circuit board are in physical contact with contact parts of a plurality of terminals. Accordingly, the circuit board and the terminals are electrically connected.

In this structure, when a circuit board having a second thickness different from the first thickness enters the inside of the housing through the slot, the contact pressure between the contact points of the circuit board and the contact portions of the terminals varies.

For example, when the second thickness is thinner than the first thickness, there is a problem that the contact pressure formed between the lower surface of the circuit board where the contact points are formed and the contact parts of the terminals decreases, thereby increasing the tolerance between them.

Additionally, when the second thickness is thicker than the first thickness, there is a problem in that the contact pressure formed between the lower surface of the circuit board on which the contact points are formed and the contact parts of the terminals increases excessively, reducing the tolerance between them.

That is, conventionally, because the contact pressure is formed through the force that pushes the contact parts of the terminals downward when the circuit board is simply inserted, there is a problem that differences in contact stroke and contact pressure occur depending on the thickness and tolerance of the circuit board. .

Accordingly, there is a problem in which unstable contact pressure is formed between contact points of circuit boards having various thicknesses and contact parts of terminals.

Prior literature related to the present invention includes Republic of Korea Patent Registration No. 10-1815456 (registration date: December 29, 2017).

The purpose of the present invention is to provide a connector capable of forming a uniform contact pressure that can maintain constant contact pressure and overlap between terminals and the substrate in response to the thickness of the substrate.

In order to achieve the above problems, the present invention provides a connector capable of forming uniform contact pressure.

The connector capable of forming uniform contact pressure includes a housing having a slot formed on one side to allow a circuit board to enter the internal space; a terminal having a contact portion disposed in the inner space of the housing to contact a contact point of the circuit board; a pressing portion disposed at the top of the inner space of the housing and capable of moving up and down; and a forced pressing unit that enters the internal space through an inlet hole formed on the other side of the housing and forces the pressing unit to move downward.

Preferably, the circuit board is pressed downward by the pressing portion to form a constant contact pressure between the contact portion and the contact point.

The pressing portion includes a bending member and a pressing member.

The bending member has one end connected to the top of the interior space and the other end bent to be spaced downward from the upper side of the interior space,

The pressing member is preferably connected to the other end of the bending member and is pressed by the forced pressing unit.

Additionally, it is preferable that the pressing member is in oblique contact with the forced pressing portion.

In addition, the forced pressing part is located in the internal space through the inlet hole and includes a forced pressing member having a set length, and a fixing member formed on one side of the forced pressing member and caught in the inlet hole,

It is preferable that the forced pressing member contacts the upper surface of the pressing member in multiple stages according to the position at which it flows into the internal space to gradually pressurize the pressing member.

In addition, a first step is formed at the upper end of the pressing member, sloping downward from one side to the other side,

At the lower end of the forced pressing member, a second step is formed that slopes downward from one side to the other side,

It is preferable that the first step portion and the second step portion contact each other in multiple stages.

Additionally, it is preferable that the first step portion and the second step portion form a step that is inclined to each other.

In addition, a straight surface connected to the second step is formed at the lower end of the forced pressing member,

It is preferable that a movement guide member connected to the inlet hole and in horizontal contact with the straight surface be formed in the housing to guide the horizontal movement of the force pressing member.

In addition, in the inner space of the housing, the contact portion of the terminal, the pressing member, and the forced pressing member are disposed in an overlapping area that overlaps each other along the upper and lower sides,

The contact point of the circuit board is preferably located in the overlapping area.

In addition, when the terminals form a plurality, it is preferable that the pressing member and the force pressing member form a plurality so as to correspond to the contact portions of the terminals forming the plurality in the overlapping area.

Through the above solution, the present invention has the effect of maintaining the contact pressure and overlap amount between the terminals and the substrate constant in conjunction with the thickness of the substrate.

Additionally, the present invention has the effect of variably adjusting the contact pressure according to the entry position of the force pressing member depending on the thickness of the substrate.

In addition, the present invention has the effect of enabling stable rework by easily releasing the contact pressure formed when replacing the circuit board.

Figure 1 is a perspective view showing a connector capable of forming uniform contact pressure according to the present invention.
Figure 2 is an exploded perspective view showing a connector capable of forming uniform contact pressure according to the present invention.
Figure 3 is a perspective view showing a forced pressing portion according to the present invention.
Figure 4 is a cross-sectional view showing a connector capable of forming uniform contact pressure according to the present invention.
5 to 7 are cross-sectional views showing the process in which a circuit board enters the inside of a housing and comes into contact with terminals.

Hereinafter, with reference to the drawings, embodiments of the present invention will be described in detail so that those skilled in the art can easily implement the present invention.

The present invention may be implemented in many different forms and is not limited to the embodiments described herein.

In order to clearly explain the present invention, parts that are not relevant to the description are omitted, and identical or similar components are assigned the same reference numerals throughout the specification.

Hereinafter, the “top (or bottom)” of the substrate or the provision or arrangement of any component on the “top (or bottom)” of the substrate means that any component is provided or disposed in contact with the upper (or lower) surface of the substrate. means that

Additionally, it is not limited to not including other components between the substrate and any components provided or disposed on (or under) the substrate.

Hereinafter, a connector capable of forming uniform contact pressure according to the present invention will be described with reference to the accompanying drawings.

Figure 1 is a perspective view showing a connector capable of forming uniform contact pressure according to the present invention. Figure 2 is an exploded perspective view showing a connector capable of forming uniform contact pressure according to the present invention. Figure 3 is a perspective view showing a forced pressing portion according to the present invention. Figure 4 is a cross-sectional view showing a connector capable of forming uniform contact pressure according to the present invention.

With reference to FIGS. 1 to 4, the configuration of the connector capable of forming uniform contact pressure according to the present invention will be described.

The connector of the present invention includes a housing 100, terminals 200, a pressing part 300, and a forced pressing part 400.

Each of the above configurations will be described.

Housing(100)

The housing 100 according to the present invention has an internal space 101.

A first slot 110 is formed on one side of the housing 100. A second slot 120 is formed on the other side of the housing 100.

The first slot 110 and the second slot 120 are connected to the internal space 101.

The first slot 110 forms a path through which the circuit board 10 enters. The second slot 120 forms a path through which the terminal 200 enters.

Accordingly, the first and second slots 110 and 120 and the internal space 101 are connected, the circuit board 10 enters the internal space through the first slot 110, and the terminals 200 are connected to the internal space 101. 2 Enters the internal space (101) through the slot (120).

Here, contact points are formed at a number of positions along the width direction at the bottom of the circuit board 10.

Terminal(200)

Each of the terminals 200 according to the present invention is arranged at intervals along the first slot 110.

Each of the terminals 200 has an elastic contact portion 210 formed at one end and a barrel 220 formed at the other end. The barrel 220 is connected to the cable 230.

These terminals 200 enter the internal space 101 through the second slot 120.

The contact portions 210 of each of the terminals 200 are arranged side by side and supported on the support member 130 formed at the bottom of the inner space 101 of the housing 100.

Here, the contact portions 210 are disposed at positions in contact with contacts formed at the bottom of the circuit board 10 entering the internal space 101.

Pressing part (300)

Referring to Figure 4, the pressing part 300 according to the present invention is disposed at the top of the internal space 101 of the housing 100 and is configured to move up and down.

The pressing part 300 according to the present invention is composed of a bending member 310 and a pressing member 320.

One end of the bending member 310 is connected to the top of the internal space 101.

The other end of the bending member 310 is bent to be spaced downward from the upper side of the internal space 101.

The pressing member 320 is connected to the other end of the bending member 310.

The pressing member 320 is spaced apart from the upper surface of the internal space 101 of the housing 100.

Additionally, a first step portion 321 is formed at the other end of the pressing member 320. The configuration of the first step portion 321 will be described later.

Force press part (400)

The forced pressing part 400 according to the present invention enters the internal space 101 through the inlet hole 140 formed on the other side of the housing 100 and forces the pressing part 300 to flow downward. .

The inlet hole 140 is formed on the other side of the housing 100, and is preferably formed on the top of the second slot 120.

The inlet hole 140 may be a hole connected to the pressing portion 300 formed at the upper end of the internal space 101.

The force pressing part 400 may be located in the internal space 101 through the inlet hole 140.

The forced pressing part 400 is composed of a forced pressing member 410 having a set length, and a fixing member 420 formed on one side of the forced pressing member 410 and hooked to the inlet hole 140. A protrusion 425 is provided on the outer surface of the fixing member 420, and the protrusion 425 is hung on the inner surface of the housing 100 provided on both sides of the inlet hole 140 to form the force pressing portion 400. A protruding groove 145 is provided to prevent it from falling out. The protruding grooves 145 are provided in multiple stages along the inflow direction of the inlet hole 140. Depending on the depth at which the force pressing member 410 is introduced, the protrusion 425 is sequentially caught in the plurality of protrusion grooves 145. Therefore, even if the depth at which the forced pressing member 410 is introduced is different, the protrusion 425 is caught in one of the plurality of protruding grooves 145, and accordingly, the forced pressing member 410 is moved at the corresponding inlet depth position. It is fixed.

The forced pressing member 410 may contact the upper surface of the pressing member 320 in multiple stages depending on the position at which it enters the internal space 101 to gradually pressurize the pressing member 320.

At the top of the pressing member 320, a first step 321 is formed that slopes downward from one side to the other side.

At the lower end of the force pressing member 410, a second step portion 411 is formed that slopes downward from one side to the other side.

The first step portion 321 and the second step portion 411 may contact each other in multiple stages.

Additionally, the first step portion 321 and the second step portion 411 form an inclined step with each other.

Additionally, a straight surface 412 connected to the second step portion 411 is formed at the lower end of the force pressing member 410.

A movement guide member 150 is formed in the housing 100, which is connected to the inlet hole 140 and is in horizontal contact with the straight surface 412 to guide the horizontal movement of the force pressing member 410.

Meanwhile, in the internal space 101 of the housing 100, the contact portion 210 of the terminal 200, the pressing member 320, and the forced pressing member 410 overlap each other along the top and bottom (an overlap area ( It is placed in A).

The contact point of the circuit board 10 is located in the overlapping area (A).

In addition, when the terminals 200 form a plurality, the pressing member 320 and the forced pressing member 410 are connected to the contact portion 210 of the plurality of terminals 200 in the overlapping area A. Make a majority to respond.

Next, the operation of the connector capable of forming uniform contact pressure according to the present invention having the above configuration will be described.

5 to 7 are cross-sectional views showing the process in which a circuit board enters the inside of a housing and comes into contact with terminals.

Referring to Figures 5 and 6, the terminals 200 are arranged side by side and enter the internal space 101 of the housing 100 through the second slot 120.

The contact portions 210 of the terminals 200 are supported on the top of the support member 130 formed at the bottom of the internal space 101 of the housing 100.

And the pressing member 320 is connected to the other end of the bending member 310 and is disposed in the upper area of the contact portions 210.

Next, the circuit board 10 having the first thickness enters the internal space 101 of the housing 100 through the first slot 110.

Accordingly, the contact points formed at the bottom of the circuit board 10 make elastic primary contact with the contact portions 210 of each of the terminals 200 supported on the support member 130.

And the bottom of the pressing member 320 is in contact with the top of the circuit board 10.

Referring to Figures 6 and 7, the force pressing member 410 of the force pressing portion 400 according to the present invention may enter the internal space 101 of the housing 100 through the inlet hole 140.

The forced pressing member 410 enters between the pressing member 320 and the upper end of the internal space.

Here, the first step portion 321 of the pressing member 320 gradually comes into multi-stage contact with the second step portion 411 of the forced pressing member 410.

Accordingly, the forced pressing member 410 may contact the upper surface of the pressing member 320 in multiple stages depending on the position at which it enters the internal space 101 to gradually press the pressing member 320 downward.

In conjunction with this, the circuit board 10 in contact with the lower end of the pressing member 320 is pressed downward with a certain force.

Here, since the first step portion 321 and the second step portion 411 form an inclined step and come into oblique contact with each other, the circuit board 10 can be pressed downward in multiple steps.

In addition, in the internal space 101 of the housing 100, the contact portion 210 of the terminal 200, the pressing member 321, and the forced pressing member 411 form an overlap area (A) that overlaps with each other along the upper and lower sides. ), and since the contact points of the circuit board 10 are also located in the overlapping area A, the contact pressure between the contact points of the circuit board 10 and the contact portions 210 of the terminals 200 is It is a structure that can be gradually increased.

Accordingly, the contact points of the circuit board 10 of the first thickness and the contact parts 210 of the terminals 200 form a first contact pressure at the first position where the force pressing member 410 enters a predetermined depth. can do. And the fixing member 420 is fixed to the housing 100 so that the force pressing member 410 does not fall out of the first position.

Meanwhile, when a circuit board having a second thickness thinner than the first thickness enters the internal space 101 of the housing 100, the contact force between the upper surface of the latter circuit board and the pressing member 321 is greater than the upper surface of the former circuit board. It may be lower than the contact force with. That is, the pressure between the circuit board contacts and the contact portions 210 in the latter case may also be lower than in the former case.

In this state, the present invention sets the entry position of the steel pressing member 410 to enter further inside the inner space 101 than in the former case, so that the pressing member 320 moves further downward by the forced pressing member 410. It can be moved. This is called the second position.

Accordingly, the pressing member 320 presses the circuit board with a higher pressing force than in the former case. The circuit board is further pressed downward, and the contact points of the circuit board and the contact portions 210 of the terminals 200 may form a second contact pressure at the second position where the force pressing member 410 enters. And the fixing member 420 is fixed to the housing 100 so that the force pressing member 410 does not fall out of the second position.

In the present invention, the first contact pressure and the second contact pressure may be the same.

That is, the force pressing the circuit board is varied in response to the thickness of the circuit board, so that the contact pressure between the board and the terminal can be kept constant.

According to the above configuration and operation, the present invention has the effect of maintaining the contact pressure and overlap amount between the terminals and the substrate constant in conjunction with the thickness of the substrate.

Additionally, the present invention has the effect of variably adjusting the contact pressure according to the entry position of the force pressing member depending on the thickness of the substrate.

In addition, the present invention has the effect of enabling stable rework by easily releasing the contact pressure formed when replacing the circuit board.

Although specific embodiments of the present invention have been described above, it is obvious that various modifications can be made without departing from the scope of the present invention.

Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined by the claims and equivalents thereof as well as the claims described later.

That is, the above-described embodiments should be understood in all respects as illustrative and not restrictive, and the scope of the present invention is indicated by the claims to be described later rather than the detailed description, and the meaning and scope of the claims and All changes or modified forms derived from the equivalent concept should be construed as falling within the scope of the present invention.

100: housing
110: 1st slot
120: 2nd slot
130: support member
140: Inlet hole
150: Movement guidance member
200: terminal
210: contact part
220: Barrel
230: cable
300: Pressing part
310: bending member
320: pressing member
321: 1st stage section
400: Force press part
410: Forced pressing member
411: 2nd stage section
422: straight side
420: fixing member
A: Overlapping area

Claims (9)

A housing having a slot formed on one side to allow a circuit board to enter the internal space;
a terminal having a contact portion disposed in the inner space of the housing to contact a contact point of the circuit board;
a pressing portion disposed at the top of the inner space of the housing and capable of moving up and down; and
It includes a forced pressing part that enters the internal space through an inlet hole formed on the other side of the housing and forces the pressing part to move downward,
The force press part,
a force pressing member inserted into the interior space through the inlet hole;
A fixing member is formed on one side of the force pressing member and is caught in the inlet hole,
The forced pressing member presses the pressing portion downward by a first depth at a first position entered into the internal space by a first length to form a first contact pressure on the circuit board of a first thickness, and enters the internal space into the internal space. Forming a second contact pressure on a circuit board thinner than the first thickness by pressing the pressing portion downward to a second depth deeper than the first depth at a second position entered by a second length longer than the first length,
The fixing member is fixed by being caught by the housing in a state in which the forcibly pressing member enters the first position, and is fixed by being caught in the housing in a state in which the forcibly pressing member enters the second position,
The first contact pressure and the second contact pressure correspond to each other,
A connector capable of forming uniform contact pressure.
According to clause 1,
The pressing part,
Provided with a bending member and a pressing member,
The bending member is,
One end is connected to the top of the internal space, and the other end is bent to be spaced downward from the upper side of the internal space,
The pressing member is,
Connected to the other end of the bending member and pressed by the force pressing member,
A connector capable of forming uniform contact pressure.
According to clause 2,
The pressing member is,
in oblique contact with the forced pressing member,
A connector capable of forming uniform contact pressure.
According to clause 2,
The forced pressing member contacts the upper surface of the pressing member in multiple stages depending on the position at which it flows into the internal space to gradually pressurize the pressing member.
A connector capable of forming uniform contact pressure.
According to clause 4,
At the top of the pressing member,
A first step is formed on one side sloping downward along the other side,
At the bottom of the forced pressing member,
A second step is formed that slopes downward from one side to the other side,
The first step portion and the second step portion are in multi-stage contact with each other,
A connector capable of forming uniform contact pressure.
According to clause 5,
The first step portion and the second step portion form an inclined step with each other,
A connector capable of forming uniform contact pressure.
According to clause 5,
At the bottom of the forced pressing member,
A straight surface connected to the second step is formed,
In the housing,
A movement guide member is formed that is connected to the inlet hole and is in horizontal contact with the straight surface to guide the horizontal movement of the force pressing member.
A connector capable of forming uniform contact pressure.
According to clause 5,
In the inner space of the housing,
The contact portion of the terminal, the pressing member, and the forced pressing member are disposed in an overlapping area that overlaps each other along the top and bottom,
The contact points of the circuit board are,
Located in the overlapping area,
A connector capable of forming uniform contact pressure.
According to clause 8,
If the above terminals form a majority,
The pressing member and the forced pressing member form a plurality to correspond to the contact portion of the terminal forming a plurality in the overlapping area,
A connector capable of forming uniform contact pressure.

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