JP2003124615A - Circuit board device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To bring a terminal member of a circuit board and a connection body of an operation unit into excellent contact with each other. SOLUTION: An electronic component 3 is mounted on one surface 2a of the circuit board 2. An opening 9 is formed in the circuit board 2 and the terminal member 4 is so provided on the surface 2a as to cover part of the opening 9. The circuit board 2 is fitted having the other surface 2b opposite to a main body frame 1. The main body frame 1 has an insertion hole 7 through which a flexible connection body 6 for electric connection with the terminal member 4 is run, and the connection body 6 passes through the insertion hole 7 and the opening 9 to come into contact with the terminal member 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a circuit board device electrically connected to an operating unit of an electric device.

[0002]

2. Description of the Related Art Conventionally, an operating unit that operates according to a purpose and a circuit board that transmits and receives electric power and electric signals to control the operation are often manufactured separately. Then, the circuit board and the operating unit are incorporated into an electric device and then electrically connected by a connector or the like, or the circuit board and the electric device are connected in advance by a connector and then mounted on the electric device. If the connector is used in this way, the connecting work of the connector is troublesome and the assembling becomes complicated. Further, if the connection work with the connector is forgotten, it becomes impossible to transfer electric power and electric signals between the circuit board and the operation unit.

Therefore, in recent years, a terminal member is provided on a circuit board, a connecting body made of a conductive spring is provided on the operating unit, and the connecting body is brought into direct contact with the terminal member, thereby eliminating the need for connection by a connector. Many methods of electrically connecting the operating unit and the circuit board are practiced.

More specifically, as shown in FIG. 10, a circuit board 2 is provided on one side of a body frame 1 of an electric device, and an operation unit is provided on the other side. The electric component 3 and the terminal member 4 are mounted on the other surface 2b of the circuit board 2, and the circuit board 2 is
It is fixed to the main body frame 1 via a rod-shaped stay 5.
The main body frame 1 is provided with an insertion port 7 through which the connection body 6 passes, and the connection body 6 of the operation unit passes through the insertion port 7 and is subjected to the load B due to the elasticity from the direction of arrow A to the terminal member 4
Press against. As a result, it becomes possible to exchange electric power and electric signals between the operating unit and the circuit board 2.

However, the length of the stay 5 and the distance between the tabular circuit board 2 and the main body frame 1 are determined by the circuit board 2
It is necessary to match the height of the electric component 3 mounted on the connector, and the length of the connector 6 is also increased accordingly.
If the connecting body 6 is lengthened, it is necessary to increase the rigidity by thickening the connecting body 6 in order to prevent the sagging and bending. Therefore, the connection body 6 becomes heavier and more elastic, the load B from the direction of the arrow A becomes larger, and problems such as contact failure due to buckling occur.

[0006]

Therefore, as shown in FIG. 11, there is a circuit board 2 provided with an electric component 3 on one surface thereof to shorten the distance between the circuit board 2 and the main body frame 1.
Since the length of the connecting body 6 can be shortened, the connecting body 6
Eliminates the need to configure thick. Moreover, since the elasticity does not increase, buckling of the connecting body 6 can be prevented, and stable and reliable electrical connection can be performed.

However, if the distance between the circuit board 2 and the body frame 1 is narrowed, it becomes difficult to confirm the contact state between the connector 6 and the terminal member 4 from the side. Further, there is a problem that solder or flux during the soldering work adheres to the surface of the terminal member 4 and oxidizes to cause contact failure. Therefore, wiping work with alcohol or the like must be performed to remove the flux before assembly. It took time and effort.

Therefore, in view of the above, it is an object of the present invention to provide a circuit board device capable of obtaining a good contact state between the terminal member and the connection body and confirming the contact state.

[0009]

In order to solve the above-mentioned problems, the present invention provides an electric component on one surface of a circuit board, and a connecting body for electrically connecting the electric component to the other surface of the circuit board. Is a circuit board device in which a terminal member, which is arranged so as to be opposed to, is provided on one surface of the circuit board so as to contact the connection body, and an opening through which the connection body passes is formed in the circuit board. If the terminal member is provided in the opening, only the end portion of the terminal member is fixed to the circuit board, and the portion exposed from the opening to the other side becomes the contact portion that contacts the connecting body, and the fixed portion and the contact portion are distinguished from each other. . Therefore, solder or flux does not adhere to the contact portion, and the problem of poor contact between the terminal member and the connection body due to the oxidation of these can be prevented. If a gap is provided in the opening when the terminal member is provided in the opening, the connector can be visually recognized through the gap. If necessary, a short electric component such as a resistor may be provided on the other surface of the circuit board. If the height is short, the length of the connection body does not become long, so that there is no fear of contact failure due to buckling, and both sides of the circuit board can be used.

If the terminal member is provided on the circuit board so as to cover a part of the opening, it is possible to surely see the connector through the opening. The phrase "providing the terminal member on the circuit board so as to cover a part of the opening" means that the terminal member is provided on one surface or the other surface of the circuit board without leaving the opening completely and leaving a gap. Examples of the form include a form in which a terminal member having a width smaller than that of the opening is provided, or a form in which the terminal member is displaced so that a part of the terminal member overlaps the opening. By thus forming a gap in the opening, the contact state between the connector and the terminal member can be visually confirmed through the gap, and both can be surely brought into contact with each other. In addition,
The contact portion of the terminal member that comes into contact with the connection body should have a flat surface that is somewhat wide in order to prevent the end portion of the connection body from being caught by the edge of the terminal member, and it is preferable not to extremely narrow the width of the terminal member. .

A circuit board having an electric component and a terminal member arranged on one surface is attached to a main body frame of an electric device with the other surface side facing, and a flexible connection for electrically connecting the terminal member to the main body frame. An insertion port through which the body passes is formed,
An opening through which the connecting body passes is formed on the circuit board, and the terminal member and the connecting body come into contact with each other. Since the electric components are arranged on one surface of the circuit board, the circuit board can be brought close to the body frame, and the length of the connection body can be shortened. Also,
Since the electric component is not sandwiched between the circuit board and the body frame, the electric component is exposed by removing the outer casing of the electric device, so that the electric component can be easily adjusted, for example, the volume can be adjusted.

Further, in order to make it easier to confirm the contact state between the terminal member and the connection body, the width of the terminal member is made smaller than the width of the connection body, and the terminal member is provided on one surface of the circuit board. , A configuration in which the contact portion of the terminal member is separated from the one surface of the circuit board. In the configuration in which the width of the terminal member is smaller than the width of the connection body, a part of the connection body protrudes from the terminal member, so that the position of the connection body can be easily understood and the contact state between the terminal member and the connection body can be easily confirmed. .

In the structure in which the contact portion of the terminal member is separated from the one surface of the circuit board, the position of the terminal member is separated from the operation unit and the distance is widened, so that the contact state between the connector and the terminal member can be easily confirmed from the side surface. It is possible.

When fixing the terminal member to the circuit board, if the base portion of the terminal member to be connected to the circuit board is located on the other surface side and fixed by soldering or the like, even if the connecting body presses the terminal member, the solder Since the surface is pressed against the circuit board, the terminal member does not come off from the circuit board. Therefore, troubles such as disconnection of the terminal member and the circuit board can be prevented.

Further, by forming a projecting piece to be engaged with the circuit board on the base portion of the terminal member, the terminal member will be in a state of being caught on the other surface of the circuit board, and the base portion even if the connector presses the terminal member. Since the bent portion of is pressed against the circuit board, the fixing force of the terminal member to the circuit board is enhanced. The protruding piece may be formed by bending the base portion of the terminal member, or may be formed by protruding the base portion toward the circuit board.

When a plurality of terminal members are provided, the contact area with the connecting body is widened, so that it is easy to make a contact, and a stable contact state can be maintained. In that case, it is preferable to leave a space between the terminal member and the adjacent terminal member, because the contact state with the connection body can be confirmed from the gap.
Further, if an existing jumper member is used as the terminal member, the manufacturing cost and the labor are not required, so that an inexpensive circuit board can be provided.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 1, an operation unit (not shown) in which a circuit board 2 is attached to one surface of a main body frame 1 of an electric device via a stay 5 and a conductive connecting body 6 is provided on the other side is provided. It is installed. The body frame 1 is formed with an insertion opening 7 through which the connection body 6 passes. As shown in FIG. 1, the operation unit and the circuit board 2 may be arranged vertically with respect to the main body frame 1 arranged in the horizontal direction, or with respect to the main body frame arranged in the vertical direction. The operation unit and the circuit board may be arranged on the left and right. At this time, the vertical or horizontal relationship between the operating unit and the circuit board is not limited.

The circuit board 2 has an electric component 3 on one surface 2a thereof.
Is mounted and an opening 9 through which the connection body 6 passes is provided. The terminal member 4 that contacts the connector 6 is fixed to the one surface 2a by soldering so as to close a part of the opening 9. The circuit board 2 is attached to the main body frame 1 with the other surface 2b side facing. The connection body 6 is made of a conductive spring, but a contact pin may be used. In addition, a short electrical component such as a resistor may be provided on the other surface 2b of the circuit board 2. The circuit board 2 may be a multi-layer board, and is not limited to a plate-like board, and various forms such as a sphere, a cube, or a rectangular parallelepiped can be adopted.

The terminal member 4 is made of a plate-shaped metal and is shown in FIG.
As shown in, the width of the contact portion 10 of the terminal member 4 is smaller than the size of the opening 9 and the width of the connection body 6. Terminal member 4
Since the width of is smaller than the opening 9, a gap 11 is formed,
The connector 6 can be visually recognized from the gap 11. Then, since the connector 6 protrudes from the terminal member 4, the position of the connector 6 can be easily understood from the protruding portion, and the contact state between the connector 6 and the terminal member 4 can be confirmed.

When the above circuit board device is incorporated in an electric device, the circuit board 2 may be attached to the frame 1 of the electric device via a stay first, and then an operation unit (not shown) may be attached. Alternatively, the operating unit may be attached to the electric device first, and then the circuit board 2 may be attached to the frame 1 of the electric device via the stay 5. At this time, the operation unit and the circuit board 2 are mounted so that the connector 6 passes through the insertion opening 7 and the opening 9 of the circuit board 2. The connecting body 6 is pressed against the contact portion 10 of the terminal member 4 by its elastic force, and is electrically connected to the terminal member 4. As a result, it becomes possible to exchange electric power and electric signals between the circuit board 2 and the operating unit.

The size of the insertion opening 7 of the main body frame 1 is larger than the size of the opening 9. Since the allowable range for the insertion position and the insertion angle of the connection body 6 is widened, the circuit board 2 can be easily positioned with respect to the operation unit.

Since the electric component 3 is mounted on the one surface 2a of the circuit board 2, the distance between the circuit board 2 and the main body frame 1 of the electric device can be narrowed, and the stay 5 and the connecting body 6 can be formed.
It is possible to shorten the length of. As a result, the occurrence of contact failure due to buckling of the connecting body 6 can be prevented, and the stay 5
It is also possible to reduce costs by shortening the length.

As another form of the terminal member 4, as shown in FIG. 3, both ends are bent at right angles to form a base portion 12 for connecting to a circuit board. A commercially available jumper member can be used as such a terminal member. Cost reduction can be achieved by using commercially available products. Through holes 13 are formed in the circuit board 2, the base portion 12 is inserted into the through holes 13 and projected onto the other surface 2 b of the circuit board 2, and soldered to the wiring pattern 14 formed on the circuit board 2. Connection 6
Even if the terminal member 4 presses the terminal member 4, the solder 8 is pressed against the circuit board 2, so that the terminal member 4 is unlikely to come off the circuit board 2. If the terminal member 4 is composed of two pieces, the contact surface becomes large, so that more stable contact between the terminal member 4 and the connection body 6 can be realized.

As shown in FIG. 4, the contact portion 1 of the terminal member 4
The terminal member 4 may be fixed to the circuit board 2 by separating 0 from the one surface 2a of the circuit board 2. As the shape of the terminal member 4, as shown in FIG.
5 may be formed and the protrusion 15 may be made to protrude to the other surface 2b side of the circuit board 2. A gap of height H is formed between the circuit board 2 and the terminal member 4, and the contact state between the terminal member 4 and the connection body 6 can be confirmed from the side. The connecting body 6 is one surface 2a of the circuit board 2.
The width of the contact portion 10 of the terminal member 4 may be larger than the width of the connector 6 because it does not project to the side and be hidden by the terminal member 4. Since the area of the contact portion 10 is increased, the contact portion 10 can be surely brought into contact with the terminal member 4.

The circuit board 2 is attached to the base 12 of the terminal member 4.
You may form the protrusion piece 16 for engaging with. For example, as shown in FIG. 6, the end of the base 12 is bent at a right angle toward the opening 9 and soldered to the wiring pattern 14. The terminal member 4 receives a force in the arrow A direction by the connecting body 6, but the projecting piece 16 formed by bending the tip end of the terminal member 4 is caught on the circuit board 2, so that the terminal member 4 is sufficiently resistant to the force in the arrow A direction. Can bear. Therefore, it is possible to prevent the terminal member 4 and the wiring pattern 14 from being disconnected as shown in FIG. 9, and it is possible to maintain a more stable contact state. The protruding piece 16 may be formed by bending it on the side opposite to the opening 9, or may be formed in a claw shape as shown in FIG. 7.

The present invention is not limited to the above embodiment, and it goes without saying that many modifications and changes can be made to the above embodiment within the scope of the present invention. For example, in the above embodiment, the terminal member 4 is arranged on the one surface 2a of the circuit board 2, but it may be arranged on the other surface 2b as shown in FIG.
At this time, the width of the terminal member 4 is made smaller than the opening 9 of the circuit board 2 and the connection body 6. Since the pressing direction of the connection body 6 is the direction in which the terminal member 4 is pressed down by the circuit board 2, disconnection between the terminal member 4 and the wiring pattern 14 can be prevented, and a more stable contact state can be maintained. it can. The contact state between the terminal member 4 and the connection body 6 can be confirmed from the clearance of the opening 9.

A transparent material that can be seen through may be used as the terminal member. If the terminal member made of a translucent material is fixed to the opening of the circuit board by soldering or the like, the contact state with the connection body can be visually recognized from one surface side of the circuit board. At this time, the width of the terminal member does not have to be smaller than the size of the opening and the width of the connection body, and the opening may be entirely covered. Since the contact area of the terminal member increases,
The contact with the connecting body can be ensured. Note that when a non-conductive light-transmitting material is used, a conductive film may be formed on the surface.

[0028]

As is apparent from the above description, according to the present invention, the electric parts are provided on one surface of the circuit board.
The circuit board can be brought close to the operation unit, and the length of the connection body can be shortened. Therefore, when using a flexible connection body, it is possible to prevent buckling of the connection body,
Stable and reliable electrical connection is possible.

Further, since the terminal member is provided so as to cover a part of the opening, it is possible to visually confirm the contact state between the terminal member and the connector through the gap, and it is possible to surely bring them into contact with each other.

[Brief description of drawings]

FIG. 1 is a sectional view of a circuit board device of the present embodiment.

FIG. 2 is a plan view of the circuit board seen from one surface side.

FIG. 3 is a perspective view of a circuit board to which a terminal member of another embodiment is fixed.

FIG. 4 is a cross-sectional view of a circuit board device provided with a terminal member according to another embodiment.

FIG. 5 is a perspective view of a terminal member of another embodiment.

FIG. 6 is a sectional view of a terminal member according to another embodiment.

FIG. 7 is a partial cross-sectional view of a terminal member of another embodiment.

FIG. 8 is a sectional view of a circuit board device according to another embodiment.

FIG. 9 is a sectional view of a conventional terminal member.

FIG. 10 is a sectional view of a conventional circuit board device.

FIG. 11 is a cross-sectional view of another conventional circuit board device.

[Explanation of symbols] 1 body frame 2 circuit board 2a One side of circuit board 2b Other side of circuit board 3 electrical components 4 terminal members 6 connection 7 insertion slot 9 openings 10 Contact part 12 base

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Naoya Okamura             22-22 Nagaikecho, Abeno-ku, Osaka-shi, Osaka             Inside the company F term (reference) 5E319 AA07 AC01 BB20 CC01 CC70                       GG20                 5E344 BB02 CC05 CD15 CD31 DD08                       EE06 EE12

Claims (9)

[Claims] 1. A circuit board device in which electric parts are arranged on one surface of a circuit board, and a connecting body for electrical connection with the electric parts is arranged facing the other surface of the circuit board. A circuit board device in which a terminal member that comes into contact with is provided on one surface of the circuit board, and an opening through which a connection body passes is formed in the circuit board. 2. A circuit board device in which electric parts are arranged on one surface of a circuit board, and a connecting body for electrically connecting with the electric parts is arranged opposite to the other surface of the circuit board. In the circuit board device, an opening for visually recognizing the connection body is formed in the circuit board, and the terminal member in contact with the connection body is provided on the circuit board so as to cover a part of the opening. 3. A flexible connecting body, in which a circuit board having an electric component and a terminal member arranged on one surface thereof is attached to a main body frame with the other surface side thereof facing each other, and electrically connected to the terminal member on the main body frame. A circuit board device in which an insertion port through which the connector is formed is formed, an opening through which the connector is inserted is formed in the circuit board, and the terminal member and the connector are in contact with each other. 4. The circuit board device according to claim 1, wherein the width of the terminal member is smaller than the size of the opening and the width of the connection body. 5. The circuit board device according to claim 1, wherein a contact portion that comes into contact with the connector of the terminal member is separated from one surface of the circuit board. 6. The circuit board device according to claim 1, wherein a base portion of the terminal member connected to the circuit board is located on the other surface side and fixed to the circuit board. 7. The circuit board device according to claim 6, wherein a protruding piece to be engaged with the circuit board is formed on a base portion of the terminal member. 8. A plurality of said terminal members are provided.
7. The circuit board device according to any one of 7. 9. The circuit board device according to claim 1, wherein an existing jumper member is used as the terminal member.