JPH0442657A - facsimile machine - Google Patents

Abstract

PURPOSE:To attain efficient assembly by fitting a 1st connector mounted to a support member with a hole of a main body frame when a 1st printed circuit board unit is incorporated in the equipment main body and connecting a 2nd connector to be connected to a 2nd printed circuit board unit to the 1st connector via the hole of the main body frame. CONSTITUTION:Various components are provided in a power supply unit 15, a power supply board 151 is arranged longitudinally, a support board 152 is implanted vertically to the board 151 and a 1st connector 19 is fitted to a tip of the support board 152. The 1st connector 19 is connected to an output circuit of the power supply board 151 via the wiring pattern of the support board 152 and the 1st connector 19 is arranged to a position opposite to the hole 17. One terminal of a connection cord 16 is connected to an input circuit of a control circuit board 14 and a 2nd connector 20 connects to the other terminal. The 2nd connector 20 is connected to the 1st connector 19 of the power supply unit via the hole 17. Thus, an event of stopping the automatic assembly tentatively and making manual on the other hand, is avoided and very efficient assembly is attained.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a facsimile apparatus relating to an electrical connection structure between a first circuit board unit and a second circuit board unit.

[Conventional technology]

Recently, in order to automate the assembly of facsimile machines by making the main body lighter and smaller, the main body frame and exterior are integrally molded, and various parts and units can be automatically dropped onto this main body frame from above. In this way, the streets bloomed.

Therefore, two different first and second circuit board units may be separated by the main body frame, and in this case, the electrical connection between the first circuit board unit and the second circuit board unit is This was done through holes drilled into the frame.

For example, the power supply unit 31, which converts electricity between the power supply unit and the control circuit board, is placed in a housing at the end of the device body, but the power supply unit is equipped with a forced cooling fan to downsize the device. Natural air cooling was used instead. Therefore, the power supply board 311 of the power supply unit
The power supply unit 31 is vertically shaped for cooling efficiency, and is arranged along the side wall of the main body of the apparatus due to its arrangement with other mechanisms, and the position of the power supply unit 31 is also determined from this.

In order to facilitate maintenance, such a facsimile apparatus has a control circuit board 32 disposed at the bottom of the main body of the apparatus so as to be isolated from various parts and units by a main body frame 33. For this reason, the control circuit board 32
Repairs can be made simply by opening the bottom cover 34.

Therefore, the electrical connection between the control circuit board 32 and the power supply unit 31 is established through the hole 35 formed in the main body frame 33.
It was done through.

In the output section of the power supply unit 31, a power connector 36 is attached to the output circuit of the power supply board 31□, and a control connector 34a is attached to the control circuit board 34. To electrically connect the power supply unit 31 and the control circuit board 32 during assembly, connect the power supply connector 36 of the power supply board 311 in advance when dropping the power supply unit 31 into the housing at the end of the device body. The first one at one end of the connection cord 37
After connecting the connector 37 of the connector 37 and inserting the second connector 371 at the other end of the connection cord 37 into the hole 35 from the housing side of the power supply unit 31, insert the power supply unit 31 into the housing at the end of the main body of the device. The team was working on assembling it. [Problem to be solved by the invention] The work of connecting the first connector of the connection cord to the power supply connector and inserting the second connector of the connection cord into the hole is difficult to do with an automatic machine and requires manual labor. I didn't get it. For this reason, when each unit is automatically assembled using the drop-in method, the automatic assembly is generally stopped when assembling the power supply unit, and the automatic assembly is performed again after manual work is done, which reduces man-hours. Not only does this increase in time and effort, but it also results in extremely inefficient assembly man-hours, which increases costs.

This problem occurs not only in the electrical connection between the power supply unit and the control circuit board, but also in the electrical connection between two circuit board units separated by the main body frame, such as the control circuit board and another circuit board. It can happen.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned drawbacks and to provide a facsimile machine that can be assembled efficiently.

[Means to solve the problem]

In order to achieve such an object, according to the present invention, a first circuit board unit and a second circuit board unit are arranged in a device main body so as to be separated by a main body frame,
In the facsimile machine that electrically connects a first circuit board unit and a second circuit board unit through a hole drilled in the main body frame, a first connector connected to the first circuit board unit. is attached to the support member from the first circuit board unit, and when the first circuit board unit is assembled into the device main body, the first connector attached to the support member connects with the hole in the main body frame. A second connector positioned to match the second circuit board unit and connected to the second circuit board unit is coupled to the first connector through a hole in the main body frame.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows the structure of the entire apparatus. In the figure, 1 is a document, 2 is a document conveying section, and the lower part thereof forms a unit when assembled as shown by the dotted line in the figure. Reference numeral 3 denotes an optical system reading section, which forms a unit when assembled as shown by the dotted line in the figure. 4 is a thermal recording paper, 5 is a printing section, and 6 is a recording paper cutting section, forming a unit when assembled as shown by the dotted line in the figure.

Reference numeral 7 denotes a discharged paper stack section, 8 a recording paper curl removal section, and 9 an operation panel section, which together with the upper part of the document transport section 2 form a unit when assembled as shown by the dotted line in the figure. 10 is a main body frame, 11 is a bottom cover, 12 is an upper cover, and 13 is a recording cover, which together with the printing section 5 form a unit when assembled as shown by the dotted line in the figure. Reference numeral 14 denotes a control circuit board, which is separated from other units and electronic components by the body frame 10 and is placed at the bottom of the apparatus body. This control circuit board 14 can be repaired by opening the bottom cover as shown in FIG. 2. 15 is a power supply unit;
16 is a connection cord, 17 is a hole drilled in the main body frame, and 18 is a paper discharge tray.

Here, the configuration of the power supply unit 15 as the first circuit board unit and the electrical connection configuration between the power supply unit 15 and the control circuit board I4 as the second circuit board unit will be described.

Inside the power supply unit 15, a power supply board 151 on which various parts are provided is arranged vertically, and a support board 15□ is installed perpendicularly from this board 151, and a first connector is installed at the tip of the support board 152. 19 is attached. Substrate 15. and 15° are electrically connected by a connector 21a121b. This first connector 19 is connected to the output circuit of the power supply board 151 via the wiring pattern of the support board 152, and the first connector 19 is disposed at a position facing the hole 17. 153 is the frame of the power supply unit, which serves as both a chassis and a heat radiation fin.

The connection cord 16 has one end connected to the input circuit of the control circuit board 14, and the other end connected to the second connector 20. The second connector 20 is coupled through the hole 17 to the first connector 19 of the power supply unit.

Here, we will discuss the document feeding system.

The document 1 stacked on the upper surface of the recording cover 13 is separated by the pressing piece 2a.
The sheets are separated one by one by the preliminary conveyance roller 2c in pressure contact with the separation roller 2c and the separation roller 2d in pressure contact with the separation friction piece 2b, and further conveyed by the paper feed roller 2g in pressure contact with the pressure roller 2a and the paper discharge roller 2h in pressure contact with the pressure roller 2f. , and is configured to be stacked on the paper discharge tray 18.

Next, we will discuss the manuscript reading system.

Furthermore, the lower surface of the transported original 1 is irradiated with a light source 3b, for example, an LED array, through the original glass 3a, and the reflected light is reflected by mirrors 3c, 3d, and 3e and transmitted through the lens 3f.
It has reached 3g of photoelectric conversion elements such as CDs. The image is recorded by its own recording unit 5 when in copy mode, and transmitted to the recording unit of another machine when in facsimile mode (transmission mode).

Let's talk about the recording system.

The thermal recording paper 4 is a roll paper that is stored in a roll receiving portion of the frame 10 in a drop-down manner. 4a is roll full state, 4
b indicates a roll empty state. After the roll paper 4 is decurled by the curl removal section 8, it is conveyed in the paper discharge direction by a platen roller 5a driven by a motor (not shown). At this time, the thermal head (
The thermal head) 5b is configured to print every dot of the recording paper 4E. The printed recording paper is 2
As shown by the dotted chain line, the blade passes between the fixed blade 6a and the rotary movable blade 6b of the cutter section, and the inner tray 7a and the outer tray 7b.
The configuration is such that the part of the reversing tray consisting of is entered from the beginning. The recording sheets are fed in sequentially by the platen roller, and the leading edge is stuck in a part of the reversing tray, and the recording sheets are ejected in a loop to the outside of the device. Each time a sheet is received, the movable blade 6b rotates upward in the figure to cut it. The device is configured such that the tip is held in its mouth and the rear end is ejected to the outside of the device.

The curl removing section 8 will be described.

8a is a moving guide shaft, 8b is a fixed shaft (recording cover 13)
Fixed on the side. 8c is the rotation center axis of the guide shaft. Depending on the remaining winding diameter of the roll paper 4, the moving guide shaft 8a is moved to the position 8a in the figure when the roll paper is as thin as the core diameter by a mechanical system (not shown), and to the position 8a in the figure when the roll paper is in a full state.
It is located at position d and changes the amount of winding of the roll paper around the fixed shaft 8b.

The degree of curl removal is varied based on the difference in the amount of wrapping, so that a constant level of flatness is always given to the discharged roll paper.

Further, 9 is an operation panel section, 9a is an indicator such as an LED,
9b is the operation panel control board 0PCNT (operation control board), 9c is the key top, 9d is 0P
This is a tact switch on CNT.

Next, the case of assembling the facsimile machine configured as described above will be explained.

The main body frame 10 integrally formed by injection molding is placed on an automatic assembly machine, and each unit is inserted and assembled by the automatic assembly machine. That is, first, the unit provided with the recording paper cutting section 6 is assembled and attached.

Next, a unit including the optical system recording section 3 is assembled and attached. Then, the power supply unit 15 is assembled and attached to the storage section of the main body frame IO. Then, the first connector 19 connected to the output circuit of the power supply board 151 via the wiring pattern of the support board 15□ will be disposed at a position facing the main body frame 10. Therefore, the second connector 20 can be easily coupled to the first connector 19 through the hole 17.

Further, a unit including a recording cover 13 and a printing section 5 is assembled and attached to the main body frame 10.

Further, a unit including the lower part of the document conveyance section 2 is assembled and attached to the main body frame 10. Finally, a unit including the upper side of the document transport section 2 and the operation panel section 9 is assembled and attached to the main body frame 10.

This completes the automatic assembly by dropping each unit, but after this, other parts are assembled to the main body frame 10. During the assembly of other parts, the bottom cover 11 with the control circuit board 14
will be installed. The electrical connection between the control circuit board 14 and the power supply unit 15 is made by connecting the second connector 20 of the connection cord 16 connected to the input circuit of the control circuit board 14 to the power supply unit 15 through the hole 17 of the main body frame 10. It is only necessary to connect it to the first connector 19.

In the above embodiment, the electrical connection between the power supply unit 15 and the control circuit board 14 has been described, but the electrical connection between the power supply unit 15 and the control circuit board 14 can be similarly implemented.

In the above-mentioned embodiment, a sub-board was provided as a support board inside the power supply, and a connector was mounted on the sub-board. However, as shown in FIG.
Using the type that is fixed to the frame 153 of 5 with screws,
Main board 15. A similar effect can be obtained by using a method in which the lead wire 22 is used.

In addition, as shown in Fig. 4 (if the structure has space to place the power supply board 15. in the center of the device), attach the connector 19 to the bottom of the back side of the power supply board 15. It is also possible to insert the connector 20 in the same way.At this time, if the lower part of the board 15 is cut out and a right angle type connector 19 is used, the power output connector can be mounted on the back side of the board 151.
It is also possible to insert the connector from below the control circuit board 14.

In addition, in the above embodiment, the power supply is not placed over the control circuit board 14 when viewed from above the main body of the apparatus, but depending on the size of the apparatus, the position of the power supply shown in FIG. The same effect can be obtained by raising the control circuit board upward, inserting the control circuit board deep inside the bottom of the power supply, and inserting the control circuit board connector from the bottom upward through the hole in the bottom cover or frame that is above the control circuit board and below the power supply. can be obtained.

〔Effect of the invention〕

As detailed above, according to the present invention, the first circuit board unit and the second circuit board unit are separated by the main body frame.
A facsimile machine in which a first circuit board unit and a second circuit board unit are arranged in a main body of the device, and the first circuit board unit and the second circuit board unit are electrically connected through a hole formed in the main body frame. A first connector connected to a first circuit board unit is attached to a support member from the first circuit board unit, and when the first circuit board unit is assembled into the device main body, the first connector is attached to the support member. and a second connector connected to the second circuit board unit is coupled to the first connector through the hole in the main body frame. This eliminates the inconvenience of having to temporarily stop automatic assembly and perform manual work when automatically assembling circuit board units. This can be done as an assembly process.

[Brief explanation of the drawing]

FIG. 1 is a configuration diagram of a facsimile machine according to an embodiment of the present invention, FIG. 2 is a diagram when the bottom cover of FIG. 1 is opened, FIG. 3 is a diagram showing a modification of the present invention, and FIG. This figure shows another modification of the present invention, and FIG. 5 is a block diagram of a conventional facsimile machine.

Claims (1)

[Claims] A first circuit board unit and a second circuit board unit are arranged in the apparatus main body so as to be separated by the main body frame, and the first circuit board unit is inserted through a hole formed in the main body frame. and a second circuit board unit, a first connector connected to the first circuit board unit is attached to a support member from the first circuit board unit; When the circuit board unit is assembled into the device main body, the first connector attached to the support member is positioned to match the hole in the main body frame, and the second connector is connected to the second circuit board unit. A facsimile machine, wherein the connector is coupled to a first connector through a hole in the main body frame.