JPH0353952A - Unit incorporating with function device - Google Patents

Abstract

PURPOSE:To enhance the airtight properties of a housing and the reliability of a function device and to obtain a small-size and low-cost unit by a method wherein a patterned conductor wiring is integrally formed in a part of the housing, and the function device is electrically connected with an electrical equipment or the respective electronic component parts of the electrical equipment are electrically connected with each other through the conductor wiring. CONSTITUTION:A socket 7 which can be connected to a pin 6 of a terminal part C of a function device 3 is formed as an integral part of a frame 4a of a housing 4. The socket 7 is provided with a pin part 7a, which is inserted to a through hole 8a of a substrate 8 which is provided outside the housing 4 for disposing an electrical equipment 5 thereon and connected to the electrical equipment 5 by soldering or the like. A unit constructed as mentioned above can enhance the airtight properties of the housing because the function device 3 is electrically connected with the electrical equipment 5 or the respective electronic component parts forming the electrical equipment 5 are electrically connected with each other through the conductor wiring integrally formed in the housing 4.

Description

Detailed Description of the Invention (Industrial Application Field) The present invention incorporates functional devices such as optical print heads such as phosphor dot arrays and LED arrays, thermal print heads, and electrostatic recording (multi-stylus) heads. Concerning the unit.

(Prior Art) Conventionally, functional devices such as optical print heads such as phosphor dot arrays and LED arrays, thermal print heads, and electrostatic recording heads are disposed inside a housing, and the above-mentioned functional devices are placed outside the housing. Units with built-in functional devices equipped with electrical components for driving are known (Japanese Unexamined Patent Publication No. 60-213970, Oki Denki Report No. 138 Vol. No. 2: Published April 1988) etc). This unit is used, for example, as an optical writing device such as an optical printer.

As shown in FIG. 10, this unit includes a phosphor dot array FLDA and a roof mirror lens array RM.
LA (Lens array LA and roof mirror array RMA
A functional element 1 having a photoelectric conversion function (consisting of) and an IC-based electronic circuit 2 (the IC shown in the figure is C O G: Chip On G
A functional device 3 consisting of a device (indicated by las) is disposed inside the housing 4, and is equipped with electronic components including wiring and control for supplying power to the IC, inputting information signals, and supplying power to the phosphor dot array FLDA. An electrical component 5 for driving a functional device 3 consisting of the following is disposed outside the housing 4.

(Problem to be Solved by the Invention) By the way, the unit incorporating the functional device 3 as described above secures the optical positional relationship between the phosphor dot array FLDA and the roof mirror lens array RMLA, and also reduces the weight of the unit and In order to reduce costs, the housing 4 is made of plastic.

However, in the conventional unit described above, in order to electrically connect the functional device 3 disposed within the housing 4 and the electrical component 5 disposed outside the housing 4, A through hole is formed for installing a connector or inserting an insulated wire.

Therefore, in the conventional unit described above, the wiring section that electrically connects the inside and outside of the housing 4
The airtightness of the phosphor dot array FLDA may deteriorate, and fine particles such as dirt, dust, and toner may enter from outside the housing 4, causing uneven light transmission efficiency from the phosphor dot array FLDA. When outside air containing oil mist inside a device such as a printer or a copying machine enters the housing, there are problems such as uneven light transmission efficiency of the functional element 1 and troubles in the electronic circuit 2.

(Means for Solving the Problems) In order to solve the above-mentioned problems, the present invention electrically connects the functional device and the electrical component via a pin or socket, or a socket with a pin, integrally formed in the housing. It is planned to connect to Further, a patterned conductor wiring is integrally formed in a part of the housing, and the functional device and the electrical component are connected to each other via the conductor wiring.
Alternatively, the individual electronic components of the above-mentioned electrical components are electrically connected.

(Function) According to the present invention, the functional device disposed inside the housing and the electrical component disposed outside the housing can be connected to a pin or a socket integrally formed in the housing, or a socket with a pin. electrically connected via.

Further, the functional device and the electrical component, or the individual electronic components of the electrical component are electrically connected via conductor wiring formed integrally with the housing.

(Example) Hereinafter, embodiments of the present invention will be described in detail based on the drawings.

An object of the present invention is to improve the confidentiality of the housing and the reliability of the functional device, and to make the unit smaller, more compact, and lower in cost.

The unit incorporating the functional device according to the present invention has a first
As shown in the figure, it consists of a functional device 3 consisting of a functional element 1 and an electronic circuit 2, a housing 4, electrical components 5, and the like.

The functional element 1 of this embodiment includes a roof mirror lens array RMLA consisting of a lens array LA and a roof mirror array RMA, and a phosphor dot array FLDA.

Functional device 3 (phosphor dot array tube) is shown in Figure 2 l.
As shown in FIG. 1, it is composed of a vacuum container section A that includes a light emitting section, an IC mounting section B that controls light emission, and a terminal section C that is connected to an external power supply or signal input system.

The terminal portion C in this embodiment is formed by a pin 6.

This functional device 3 is arranged inside a housing 4. Here, the housing 4 is a frame body 4 for ensuring the optical positional relationship of the roof mirror lens array RMLA.
a, and a support plate 4b that supports the phosphor dot array tube. In the functional device 3, the support plate 4b is adhesively fixed to the bottom of the frame 4a, so that the housing 4
sealed inside.

As shown in FIG. 3, a socket 7 connectable to the pin 6 of the terminal portion C of the functional device 3 is integrally formed in the frame 4a of the housing 4. As shown in FIG.

The illustrated socket 7 has a pin portion 7a, and this pin portion 7a is inserted into a through hole 8a of a board 8 for arranging an electrical component 5 disposed outside the housing 4.
It is connected to the electrical component 5 by soldering or the like (see FIGS. 1 and 3). Here, as a method for integrally forming the socket 7 with the frame 4a of the housing 4, there is a method in which the socket 7 is placed in a predetermined position in advance and the frame 4a of the housing 4 is integrally molded with plastic; There is a method in which a connector provided with a socket is formed in advance and this connector is integrally molded at a predetermined position of the frame 4a of the housing 4. By these methods, the housing 4
When forming a seal, the former method is more advantageous in terms of sealability and cost.

Further, as shown in FIGS. 4 and 5, pins 9 formed in an L-shape are provided at other locations on the frame 4a of the housing 4.
is integrally formed on the frame 4a in the same manner as the socket 7. One end of this pin 9 is inserted into the through hole 8a of the board 8 in the same manner as the pin portion 7a of the socket 7, and then connected to the electrical component 5 by soldering or the like. Further, the other end of the pin 9 is connected to a connector 12 having a cable 10 and a socket 11 for power supply and information signal input from an external device such as a main body of a recording apparatus such as a printer.

Here, the side surface of the frame 4a of the housing 4 on the side to which the connector 12 is connected is formed with a recess 4c into which the end of the connector 12 fits. The fitting portion between the end of the connector 12 and the frame 4a of the housing 4 may be formed with a convex portion on the housing 4 side and a recessed portion on the connector l2 side.

On the other hand, the socket 7 connected to the pin 6 of the above-mentioned terminal part C
may be integrally formed with the support plate 4b of the housing 4-8, as shown in FIG. In this case, the pin 6 of the terminal portion C is formed downward and connected to the socket 7. In addition, the socket 7 and the board 8 in this embodiment
The connection is made through a pin 8C provided on the substrate 8 together with a spacer 8b.

As mentioned above, the unit according to the invention includes a housing 4
A functional device 3 disposed inside the housing 4 and an electrical component 5 disposed outside the housing 4 are electrically connected via a pin or a socket or a socket with a pin integrally formed in the housing 4. . Here, the combination of pins and sockets is not limited to the illustrated example,
It is arbitrarily selected depending on the structure of the functional device 3, housing 4, etc., parts, shapes, layouts, etc. Furthermore, in the illustrated embodiment, the socket and pins for connecting the connector are mainly formed integrally with the housing.
Pins and sockets for connecting other electronic components constituting the electrical components, such as resistors, capacitors, transformers, transistors, and LSIs, may be integrally formed in the housing.

On the other hand, in the embodiment shown in FIG. 7, a patterned conductor wiring l3 is integrally formed in a part of the frame 4a of the housing 4 configured as described above, and the functional device 3 and the electrical component 5 are connected to each other. (See FIG. 1), or a unit configured to electrically connect individual electronic components of the electrical component 5. In this embodiment, a conductor wiring 13 is connected between pin 7a of the socket connected to pin 6 of terminal portion C of functional device 3 and pin 9 connected to connector l2 from an external device.
An example of connection is shown below.

Methods for integrally forming the conductor wiring 13 on the housing 4 include a method of integrally disposing the conductor wiring 13 made of lead wires or the like during plastic molding of the housing 4;
Alternatively, the housing 4 is formed in advance with recesses and protrusions along the wiring route, and after the housing 4 is molded with plastic, the conductor wiring 13 made of a thin metal plate or the like is fitted into the protrusions or recesses to integrate the housing 4. There are methods.

Here, as shown in FIG. 6, the pin 6 of the terminal portion C of the functional device 3 is formed toward the support plate 4b side of the housing 4, and the socket 7 is connected to the support plate 4b with the pin 6. In the case of an integrated unit, conductor wiring 13 is integrally formed on the bottom surface of the support plate 4b, as shown in FIGS. 8 and 9. In this case, the conductor wiring 13 may be formed by the same method as in the embodiment shown in FIG. 7, or by printing a paste containing a conductive material on the bottom surface of the support plate 4b to form the conductor wiring 13. Also good.

In the unit configured as described above, conductor wiring 1 integrally formed in the housing 4 connects the functional device 3 and the electrical component 5, or the individual electronic components that make up the electrical component 5.
It is electrically connected via 3. Here, the combination of pins and sockets, and the shape and structure of conductor wiring, etc.
It is not limited to the illustrated example, and can be arbitrarily set depending on the layout of the housing, etc., as described above.

(Effects of the Invention) According to the present invention, the airtightness of the housing can be improved, so the efficiency and reliability of functional devices can be improved, and the wiring portions of electrical components are integrated with the housing, so Since the number of components is reduced, it is possible to reduce the size and cost of the unit.

[Brief explanation of drawings]

FIG. 1 is a sectional view of one embodiment of the present invention, FIG. 2 is a partial perspective view of a functional device in the above embodiment, FIG. 3 is an exploded sectional view of a main part of the above embodiment, and FIG. 4 is a sectional view of the above embodiment. 5 is a partial perspective view of FIG. 4, FIG. 6 is an exploded sectional view of another essential part of another embodiment of the present invention, and FIG. 7 is a still another embodiment of the present invention. Fig. 8 is an exploded sectional view of main parts of still another embodiment of the present invention, Fig. 9 is a perspective view of main parts of Fig. 8, and Fig. 10 is a built-in conventional functional device. FIG. DESCRIPTION OF SYMBOLS 1... Functional element, 2... Electronic circuit, 3... Functional device, 4... Housing, 4a... Frame, 4b.
...Support plate, 5...Electrical components, 6...Pin, 7...
・Socket, 8...board, 9...pin, l3...
conductor wiring. q≧ ＼ Ward 0 3301

Claims (1)

[Claims] 1. A functional device consisting of a functional element such as a phosphor dot array and an LED array, and an electronic circuit that is electrically connected to the functional element and performs a predetermined function is disposed inside the housing. In a unit with a built-in functional device, in which the electrical components constituting the electronic circuit that drives the functional device are arranged outside the housing, a pin or socket integrally formed in the housing, or a socket with a pin is provided. A unit having a built-in functional device, characterized in that the functional device and the electrical component are electrically connected via the functional device. 2. A patterned conductor wiring is integrally formed on a part of the housing, and the functional device and the electrical component, or individual electronic components of the electrical component are electrically connected via the conductor wiring. A unit with a built-in functional device characterized by: