JPH06244573A - Electronic device - Google Patents

Abstract

PURPOSE:To commonly use a main body side electronic board when many kinds of electronic devices having different additional functions are constituted, by using a board-to-board connector to connect a terminal board with a feature board. CONSTITUTION:A feature board 7 for additional functions is detachably arranged between a bracket 5 and a terminal board 8. The bracket 5 retains the upper end side parts of main body side electronic boards 2, 3, 4 arranged on an a main chassis 1. The terminal board 8 is connected with the rear side of the main body side electronic boards 2, 3, 4. The feature board 7 is connected with the terminal board 8 via board-to-board connectors 41, 44. Hence the main body side electronic boards 2, 3, 4 can be commonly used independently of the use or the kind of the feature board 7, i.e., for various kinds of devices. Connection and detaching between the terminal board and the feature board are enabled easily and surely.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic device such as a television receiver having an electronic circuit section composed of an electronic substrate.

[0002]

2. Description of the Related Art Conventionally, there has been proposed an electronic device such as a television receiver having an electronic circuit portion composed of an electronic substrate. Such an electronic device has an electronic circuit section composed of a plurality of electronic boards housed in an outer casing. These electronic boards are configured to have a plate-shaped base material portion made of an insulating material and a conductor pattern that is adhered and formed into a predetermined shape on the base material portion,
Various electronic elements constituting an electronic circuit are connected and arranged on the conductor pattern. The electronic boards are three-dimensionally arranged in the outer casing by stacking them in layers or connecting them so as to be orthogonal to each other.

The electronic boards are housed in the outer housing while being electrically connected to each other, that is, in a state where predetermined portions of the conductor pattern are electrically connected to each other. When such a plurality of electronic boards are connected to each other by a wire material such as a cord or a wire, the structure becomes complicated, downsizing becomes difficult, and the manufacturing becomes complicated. Is performed through the connector configured as described above.

This connector is commonly called a board-to-board connector, and is a connector provided on one electronic board and another connector provided on the other electronic board. It is composed of a receiving connector. The connection connector has a plurality of connection pins, each of which is connected to a predetermined location of a conductor pattern on the one electronic board and is fixedly arranged on the electronic board. The receiving connector has a plurality of pin sockets into which the respective connection pins are inserted correspondingly, by connecting each of the connection pieces in these pin sockets to predetermined positions of the conductor pattern on the other electronic board. , Is fixedly provided on the electronic substrate.

In the electronic boards having the board-to-board connector thus arranged, the electrical connection and the mechanical joining are completed at the same time by connecting the connecting connector and the receiving connector. To be done.

In such an electronic device,
Some are configured with a feature substrate that constitutes an electronic circuit that controls an additional function. The feature board is selectively connected to the main body side electronic board housed in the outer casing to add to the basic function of the electronic device controlled by the electronic circuit formed by the main body side board. Functions can be added. In electronic devices,
By connecting a board having different functions as the feature board to the main body side electronic board, a board having different additional functions can be configured. That is, this electronic device can be configured as an electronic device of a different model by selecting the feature board.

[0007]

By the way, in the electronic device having the feature board as described above, when the feature board having different additional functions is to be mounted, the main body side electronic board is provided with this feature board. It becomes necessary to provide a connecting portion for connecting the feature substrate and a supporting member for supporting the feature substrate.

Therefore, it is difficult to use a common electronic board on the main body side between electronic devices of different models. Also, the bracket serving as the support member is also
It has to be configured to suit various feature boards, and different ones must be prepared for each model.

Therefore, the present invention has been proposed in view of the above-mentioned circumstances, and the main body side electronic board can be shared even when a multi-model electronic device having different additional functions is configured. It is an object of the present invention to provide an electronic device made as described above.

[0010]

In order to solve the above problems and achieve the above objects, an electronic device according to the present invention is connected to a main electronic board disposed on a main chassis and the main electronic board. A main body side electronic board consisting of a sub electronic board, a terminal board attached to the sub chassis detachably arranged with respect to the main chassis and connected to the main body side electronic board via a connector, and the terminal board And a feature substrate connected through a connector to control an additional function.

Further, according to the present invention, in the above electronic device, the connector for connecting the terminal board and the feature board is a board-to-board connector.

Further, according to the present invention, in each of the above-mentioned electronic devices, the plurality of sub electronic boards are provided upright on the main electronic board and connected to the main electronic board. A bracket member is provided which extends between the upper end portions of these sub electronic boards and is engaged with the upper end portions of the respective sub electronic boards to hold the upper end portions of these sub electronic boards.
The feature board is supported by a support portion provided on the bracket member.

[0013]

In the electronic device according to the present invention, the main body side electronic board including the main electronic board arranged on the main chassis and the sub electronic board connected to the main electronic board and the main body chassis are attached to and detached from the main chassis. A terminal board attached to a sub-chassis arranged so as to be capable of being connected to the main body side electronic board via a connector; and a feature board connected to the terminal board via a connector to perform an additional function. Therefore, the terminal board serves as an interface between the electronic board on the main body side and the feature board, and even when various feature boards are selectively used, by appropriately selecting the terminal board, A common side electronic substrate can be used.

In the above electronic device, when the connector for connecting the terminal board and the feature board is a board-to-board connector,
It is possible to easily and surely connect and disconnect the terminal board and the feature board.

Further, in each of the electronic devices described above, it is assumed that a plurality of the sub-electronic boards are provided upright on the main electronic board and connected to the main electronic board, and the sub-electronic boards are provided. A bracket member is provided which extends between the upper end portions of the boards and is engaged with the upper end side portions of the respective sub electronic boards and holds the upper end side portions of these sub electronic boards. In the case where various feature boards are selectively used, the main body side electronic board and the bracket are properly selected by appropriately selecting the terminal board even when various feature boards are selectively used. Common members can be used as the members.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Specific embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 1, the electronic device according to the present invention is configured to have a main body side electronic board including a main electronic board 2 and a plurality of sub electronic boards 3 and 4 housed in an outer casing (not shown). . Each of the electronic boards 2, 3 and 4 forming the main body side electronic board has a plate-like base material portion made of an insulating material and a conductor pattern formed on the base material portion by a predetermined shape. And various electronic elements (not shown) forming an electronic circuit are connected and arranged on the conductor pattern, and the conductor patterns of the electronic elements are electrically connected to each other. An electronic circuit section that controls functions is configured.

As shown in FIG. 1, the electronic device has a main chassis 1 fixedly arranged on the bottom surface of the outer casing. The main electronic board (main circuit board) 2 is mounted on the main chassis 1.
Are fixedly arranged.

On the main electronic board 2, two sub electronic boards (sub circuit boards) 3 and 4 are provided upright. The sub electronic boards 3 and 4 and the main electronic board 2 are so-called board-to-board (Board to board).
Board) connectors 10 and 11 are connected. That is, each of the sub electronic boards 2 and 3 is provided with a connection connector which is located near the lower edge and constitutes the board to board connector. This connection connector has a plurality of connection pins, and the base end sides of these connection pins are connected to the conductor pattern of the sub electronic board, and the tip ends of these connection pins are made to project to the lower side of the sub electronic board. ing. On the other hand, a receiving connector that constitutes the board-to-board connector is attached to the main electronic board. The receiving connector has a plurality of pin sockets into which the respective connecting pins of the connecting connector are inserted correspondingly. In these pin sockets, there are built-in connection pieces that are in contact with the connection pins inserted in the pin sockets and that are connected to the conductor patterns of the main electronic board. The sub electronic boards 3 and 4 are electrically connected to the main electronic board 2 by placing the board-to-board connectors 10 and 11 in a connected state, and the main electronic boards It is supported in a state of being erected on 2.

Then, as shown in FIG. 1 and FIGS. 3 to 6, the upper side portions of the sub electronic boards 3 and 4 are arranged so as to extend between the upper edges of the sub electronic boards 3 and 4. The bracket 5, which is a bracket member, is provided. The bracket 5 is formed of a material such as a synthetic resin as a substantially flat plate member. The bracket 5 engages with the upper end side portions of the sub electronic boards 3 and 4 to support the sub electronic boards 3 and 4.

That is, at the upper end portion of each of the sub electronic boards 3 and 4, there is an engagement protrusion projecting forward from the front edge which is one side edge of each of the sub electronic boards 3 and 4. A piece 20 is provided. The engagement protrusion 20 is formed integrally with the sub electronic boards 3 and 4 as a part of the sub electronic boards 3 and 4. Then, each of the sub electronic boards 3 and 4 described above.
An engaging hole 21 is formed in the upper end side portion of the sub electronic board 3, 4 in the vicinity of the rear edge which is the other side edge portion of each sub electronic board 3, 4. The engagement hole 21 is formed as a rectangular through hole. On the other hand, the bracket 5 has the engaging protrusion 2
It has an engaging slit portion 23 into which 0 is fitted and engaged.
The engagement slit portion 23 is a vertically long through hole provided in a front wall portion that is provided so as to extend downward along the front end edge of the bracket 5. In addition, this bracket has an engaging projection portion 26 which is fitted and engaged in the engaging hole 21 of each of the sub electronic boards 3 and 4. The engaging projections 26 are projections provided on the inner side surfaces of the pair of tongue pieces 25, 25, which extend downward from both side edges of the bracket 5, and which face each other.

The bracket 5 is attached to each of the sub electronic boards 3,
In order to engage with the sub electronic boards 4, the bracket 5 is first positioned above the sub electronic boards 3 and 4, and the sub electronic boards 3 and 4 are placed.
The engaging protrusions 20 and 20 of FIG.
Insert it corresponding to 3,23. Then, when the rear side portion of the bracket 5 is pushed down against the upper end portions of the sub electronic boards 3 and 4, the tongue pieces 25 and 25 are moved to the sub electronic boards 3 and 4, respectively. The engaging projections 26, 26 correspond to the engaging holes 21, 21 by entering the outside of the sub electronic boards 3, 4 while sliding and elastically displacing outward. And then fit. Then, as shown in FIG. 6, the bracket 5 has a support piece portion 27 that hangs downward from the top plate portion at a position substantially facing the engagement protrusion portions 26, 26. The bracket 5 holds the upper end side portions of the sub electronic boards 3 and 4 by the tongue piece 25 and the support piece 27,
The sub electronic boards 3 and 4 are engaged. Further, a rib 24 is provided substantially at the center of the bracket 5 so as to extend downward from one side to the other side. This rib 2
The reference numeral 4 is fitted into a notch 22 provided at the substantially central portion of the upper edge of each of the sub electronic boards 3 and 4.

The bracket 5 engaged with each of the sub electronic boards 3 and 4 is elastically deformed outward from each of the tongue portions 25 and 25 so that the sub electronic boards 3 and 4 are not deformed. Can be easily removed.

The bracket 5 also has a small board supporting projecting portion 29 projecting laterally. The small substrate supporting protrusion 29 has a support groove 30 on the lower surface. The projecting portion 29 for supporting the small board is provided with the main electronic board 2
The upper end side of the small board 6 standing upright is fitted into the support groove 30 to support the small board 6. This small board 6
Similar to the sub electronic boards 3 and 4, it is connected to the main electronic board 2 through a board-to-board connector and is erected on the main electronic board 2.

Further, on the upper surface of the bracket 5,
A plurality of small substrate supporting tongue portions 50 and a feature substrate supporting base portion 33 serving as a supporting portion for supporting a feature substrate 7 described later are provided. The small substrate supporting tongue portion 5
In the case of 0, the base end side is continuously supported by the bracket 5, is positioned above the bracket 5, and is parallel to the upper surface portion of the bracket 5. This small board supporting tongue portion 50
Cooperates with the upper surface of the bracket 5 to move the small board 52.
Support by sandwiching. The feature board support base 3
3 has a substantially truncated pyramid shape, and the bracket 5
Is integrally formed on the upper surface of the
Has support claw portions 34, 34 for supporting the front edge portion of the.

Then, as shown in FIGS. 1 and 7, connection connectors 12 and 13 constituting a board-to-board connector are correspondingly attached to the sub electronic boards 3 and 4, respectively. These connection connectors 12 and 13 have a main body made of synthetic resin and a plurality of connection pins 17 sealed and supported by the main body. These connecting pins 17 are parallel to each other and protrude from the main surface of the main body. Further, each of the connecting pins 17 has a base end side portion as a joining pin 19 which is projected from the side surface portion of the main body portion. These joint pins 19 are
It is inserted corresponding to the plurality of bonding holes 55 formed in the sub electronic boards 3 and 4, and is joined to the conductor pattern of the sub electronic boards 3 and 4 by means of soldering or the like. The connecting connectors 12 and 13 have a pair of guide rods 16 and 16 which are supported by the base end portion sealed and supported by the main body. These guide rods 16 and 16 are parallel to the respective connection pins 17, and are positioned and supported on both sides of the respective connection pins 17. These connection connectors 12 and 13 are
The sub-electronic boards 3 and 4 are mounted near the rear edges thereof, and the connection pins 17 and the guide rods 16 and 16 project rearward from the rear edges of the sub-electronic boards 3 and 4. I am letting you.

Further, tap members 14 and 15 are attached to the sub electronic boards 3 and 4 in the vicinity of the connection connectors 12 and 13, respectively. The tap members 14 and 15 are formed by bending a metal plate or the like in a U-shape and have a screw hole 53 in the central portion. The tap members 14 and 15 have a pair of mounting claws 18 on one side edge.
18 is projected. This tap member 14,15
Attaches the mounting claws 18, 18 to the sub electronic boards 3, 4
8 through the mounting holes 54, 54, and the mounting claws 18, 18 are inserted into the auxiliary electronic boards 3, 4 as shown in FIG.
It is mounted on the sub-electronic boards 3 and 4 by refracting it along the back surface of the sub-electronic boards 3 and 4. This tap member 14, 1
5 designates the screw holes 53 toward the rear side of the sub electronic substrates 3 and 4, and positions the screw holes 53 on the rear end edges of the sub electronic substrates 3 and 4, so that the sub electronic substrates 3 , 4 are attached.

A sub-chassis 9 is attached to the rear end portion of the main chassis 1 so as to be detachable and rotatable. A pair of rotating shafts 35, 35 are provided on the rear end side portion of the main chassis 1. As shown in FIG. 2, these rotating shafts 35, 35 are located in holes 48, 48 formed in the rear end side portion of the main chassis 1, and both ends thereof are supported by the main chassis 1. , Is attached to the main chassis 1 with its axis on the same straight line parallel to the rear edge of the main chassis 1. The sub-chassis 9 is formed in a substantially flat plate shape and has a pair of hook portions 36, 36 on the lower end side. These hooks 36, 36
Is provided so as to project downward from the sub chassis 9,
The rear side is open. That is, the hook portions 36, 36 are positioned on the front side of the rotary shafts 35, 35 and are inserted into the hole portions 48, 48 to engage with the rotary shafts 35, 35. It is designed to do.

A terminal board 8 is attached to the front surface of the sub-chassis 9. A plurality of connection jacks 49 are attached to the back surface of the terminal board 8. These connection jacks 49 project to the rear side of the sub chassis 9 through the through holes provided in the sub chassis 9.

Then, as shown in FIG. 7, a pair of receiving connectors 56, 56 which constitute the board-to-board connector together with the connecting connectors 12, 13 are attached to the terminal board 8. Each of these receiving connectors 56 is made of a material such as a synthetic resin and has a plurality of pin socket holes 58 into which the corresponding connecting pins 17 are correspondingly inserted.
And a pair of guide holes 57, 57 into which the guide rods 16, 16 are inserted. Inside each of the pin socket holes 58, a conductor piece (not shown) for contacting the connection pin 17 is built in. The receiving connector 56 is attached to the back surface of the terminal board 8, that is, located between the terminal board 8 and the sub-chassis 9. The conductor piece of the receiving connector 56 is connected to the conductor pattern of the terminal board 8. The terminal board 8 has through holes 38, 37, 37 at positions corresponding to the pin socket hole 58 and the guide holes 57, 57, respectively.
8 and the respective guide holes 57, 57 face the front side of the terminal board 8.

The receiving connectors 56, 56 are attached to the terminal board 8 at positions corresponding to the connecting connectors 12, 13. That is, the hooks 36, 36 are engaged with the rotary shafts 35, 35, and the sub-chassis 9 is rotated forward so that the sub-chassis 9 is in a state along the rear end edges of the sub-electronic boards 3, 4. When received, the receiving connectors 56, 56 are connected to the connecting connectors 12,
It is opposed to 13.

Further, the terminal board 8 is provided with a pair of screw insertion holes 39, 39 at positions corresponding to the screw holes 53 of the tap members 14, 15. A pair of setscrews 40, 40 screwed into the screw holes 53 are correspondingly inserted into the screw holes 39, 39.

As shown in FIG. 9, the sub-chassis 9 has the hook portions 36, 36 located in front of the rotary shafts 35, 35 in the hole portions 48, 48, respectively, as shown in FIG. As shown by the arrow A, the hook portions 36, 36 are engaged with the rotary shafts 35, 35 by being moved obliquely downward, as shown in FIG. Then, arrow B in FIG.
As shown in FIG.
When the terminal board 8 is rotated around 5, 35 around the front side, the terminal board 8 is placed along the rear edge of each of the sub electronic boards 3 and 4, as shown in FIG. At this time, each of the connection connectors 1
2 and 13 receive the connecting pins 17 and the receiving connector 5
6, 56 are inserted into the pin socket holes 52, the guide rods 16, 16 are inserted into the guide holes 57, 57, and are connected to the receiving connectors 56, 56. At this time, the guide rods 16 and 16 have the guide holes 5
It is held by 7, 57 to prevent it from coming off.

Since the connecting connectors 12 and 13 and the receiving connector 56 are arranged so that the distances from the rotating shafts 35 and 35 are equal, the rotating shafts 3 are
By engaging the hooks 5, 35 with the hooks 36, 36, the mutual positioning can be performed easily and reliably.

Further, as shown in FIG. 12, an abutment rib 59 is projectingly provided on the front side portion of the hook portion 36. The abutment rib 59 abuts on the front edge of the hole 48 when the sub-chassis 9 is rotated to the front side, so that the main chassis 1 reliably holds the sub-chassis 9. And

Here, when the set screws 40, 40 are inserted corresponding to the insertion holes 39, 39 and screwed into the screw holes 53 of the tap members 14, 15, the terminal board 8 is obtained. Is fixed to each of the sub electronic boards 3 and 4. Therefore, in the state where the set screws 40, 40 are screwed in, relative movement between the sub-electronic boards 3, 4 and the terminal board 8 is prevented, and the connection pin 17 and the pin Sliding wear of the conductor piece in the socket hole 58 is prevented.

The feature substrate 7 is shown in FIG.
Further, as shown in FIG. 13, the feature board support base 33 is mounted so as to extend across the upper surface of the feature board support base 33 and the upper end of the terminal board 8. The feature board 7 constitutes an electronic circuit that controls an additional function of the electronic device, and is electrically connected to the main body side electronic board through the terminal board 8.

The front end of the feature board 7 is provided with recesses 47, 47 into which the support claws 34, 34 are fitted. A receiving connector 44 is attached to the lower surface of the feature board 7 on the rear end side.
The receiving connector 44 has the same structure as the receiving connector 56 attached to the terminal board 8 and further has a lock piece portion 45. This lock piece 45
Is formed of a material such as a rigid resin that is elastically displaceable. The receiving connector 44 is attached to the feature board 7 by joining the joining pins 46 to the feature board 7 by means such as soldering. on the other hand,
A connector 41 is attached near the upper end of the terminal board 8. The connection connector 41 is configured similarly to the connection connectors 12 and 13 attached to the sub electronic boards 3 and 4, and has a plurality of connection pins 42.

In the feature board 7, first, the support claws 34, 34 are fitted in the recesses 47, 47, and then, as shown by an arrow C in FIG. The connection connector 44 is connected to and supported by the receiving connector 41 by pressing and lowering. At this time, the lock piece portion 45 engages with the rear surface portion of the receiving connector 41, and the connecting connector 44
Of the receiving connector 41 is prevented. By connecting the connection connector 44 and the receiving connector 41 in this way, the feature board 7 is connected to the sub-electronic boards 3 and 4, that is, the main body, via the conductor pattern of the terminal board 8. Connected to the side electronic board.

To remove the feature board 7,
First, the lock piece portion 45 is elastically displaced in the direction side, and the engagement of the lock piece portion 45 with the receiving connector 41 is released. Then, by raising the rear side portion of the feature board to the upper side in the direction of the arrow C in FIG.
1, the feature board 7 is removed from the terminal board 8 and further removed from the support claws 34, 34 of the bracket 5.

This electronic device is based on the feature board 7 described above.
Can be configured as different models having different additional functions by exchanging the ones for different additional functions. That is, if various feature boards 7 are facilitated, a variety of electronic devices can be configured by only selecting and replacing the feature boards 7. In this electronic device, the terminal board 8 is
Is, so to speak, an interface between the feature board 7 and the main body side electronic board. Therefore, in this electronic device, the main body side electronic substrate can be commonly used in various types of electronic devices by exchanging the terminal substrate 8 for a feature substrate 7 to be mounted. .

In the electronic device according to the present invention,
The sub electronic substrates 3 and 4 are not limited to two as in the above-described embodiment, and as shown in FIG.
The number of sheets may be three, or four or more. Also in this case, the bracket 5 is provided with the engaging projection 20 and the engaging hole 2 provided on each of the sub electronic boards 3, 4, and 60.
By providing the engaging slit portion 23 and the engaging protrusion portion 26 corresponding to No. 1, the bracket 5 is easily engaged with each of the sub electronic boards 3, 4, 60, and the sub electronic board 3 is provided. , 4, 60 hold the upper end side portion.

Further, in such an electronic device, as shown in FIG. 15, instead of the bracket 5, a horizontal electronic board 61 mounted between the upper end portions of the sub electronic boards 3 and 4 is provided. You may comprise. This horizontal electronic board 61
Is connected to each of the sub electronic boards 3 and 4 through a board-to-board connector 62.

In the electronic device according to the present invention, the feature substrate 7 is not limited to one, and a plurality of feature substrates 7, 63, 63 are arranged in parallel as shown in FIG. It may be provided. Each of the feature boards 7, 63, 63 is attached across the upper surface of the feature board support base 33 and the upper end of the terminal board 8. These feature boards 7, 63, 63 are respectively board-to-board connectors 44, 44, 44.
Also, it is electrically connected to the main body side electronic board through the terminal board 8.

Further, in the tap member 14, as shown in FIG. 17, when the sub electronic board 3 and the terminal board 8 are arranged in parallel with each other, the sub electronic board 3 and the terminal board 8 are arranged. May be used for joining. In this case, in the tap member 14, the attachment claws 18, 18 are provided at both ends of the metal plate material forming the tap member 14, respectively. These mounting claws 18, 1
8 are mounting holes 54, 54 formed in the sub-electronic substrate 3
When the tap member 14 is inserted into the sub electronic board 3 and is bent along the back surface of the sub electronic board 3, the tap member 14 is mounted on the sub electronic board 3 with the screw hole 53 facing upward. Then, when the set screw 40 inserted into the screw insertion hole 39 formed in the terminal board 8 is screwed into the screw hole 53,
The electronic boards 3 and 8 are stacked in parallel with each other, and are fixed and held. At this time, the connection connectors 12, 12 mounted on the sub-electronic board 3
Are connected to 56, 56 mounted on the terminal board 8.

[0045]

As described above, in the electronic device according to the present invention, the main body side electronic board including the main electronic board arranged on the main chassis and the sub electronic board connected to the main electronic board, A terminal board attached to a sub-chassis detachably arranged with respect to the main chassis and connected to the main body side electronic board via a connector, and connected to the terminal board via a connector to control an additional function. And a feature substrate.

Therefore, in this electronic device, the terminal board serves as an interface between the main body side electronic board and the feature board, and even when various feature boards are selectively used, the terminal board is not used. By appropriately selecting, the main body side electronic board can use a common one.

In the electronic device described above, when the connector for connecting the terminal board and the feature board is a board-to-board connector,
It is possible to easily and surely connect and disconnect the terminal board and the feature board.

Further, in each of the electronic devices described above, it is assumed that a plurality of the sub-electronic boards are provided upright on the main electronic board and connected to the main electronic board, and the sub-electronic boards are provided. A bracket member is provided which extends between the upper end portions of the boards and is engaged with the upper end side portions of the respective sub electronic boards and holds the upper end side portions of these sub electronic boards. In the case where various feature boards are selectively used, the main body side electronic board and the bracket are properly selected by appropriately selecting the terminal board even when various feature boards are selectively used. Common members can be used as the members.

That is, the present invention can provide an electronic device in which the main body side electronic substrate can be shared even when configuring a variety of electronic devices having different additional functions. is there.

[Brief description of drawings]

FIG. 1 is a partially exploded perspective view showing a configuration of an electronic device according to the present invention.

FIG. 2 is a main part exploded perspective view showing a structure of a main part of the electronic device.

FIG. 3 is a side view showing a partially broken shape of a sub electronic board and a bracket forming the electronic device.

FIG. 4 is a side view showing a state where the bracket is mounted on the sub electronic substrate.

FIG. 5 is a plan view showing a state where the bracket is mounted on the sub electronic substrate.

FIG. 6 is a longitudinal sectional view of an essential part showing an engaged state of the sub electronic board and the bracket.

FIG. 7 is an exploded perspective view of essential parts showing a mounting state of a connection connector, a receiving connector and a tap member, which form the electronic device, on an electronic board.

FIG. 8 is a rear view of the main parts showing the configuration of the tap member attached to the electronic board.

FIG. 9 is a longitudinal sectional view of an essential part showing a state when the main chassis and the sub chassis are engaged with each other in the electronic device.

FIG. 10 is a longitudinal cross-sectional view of essential parts showing a state in which the main chassis and the sub-chassis are being joined together.

FIG. 11 is a longitudinal sectional view of an essential part showing a state in which the sub chassis is joined to the main chassis.

FIG. 12 is an enlarged vertical sectional view of an essential part showing the configuration of the essential part of the sub chassis.

FIG. 13 is a vertical cross-sectional view showing a state in which a feature board is arranged on a bracket in the electronic device.

FIG. 14 is a perspective view showing another example of a supporting structure of a sub electronic substrate in the electronic device.

FIG. 15 is a perspective view showing still another example of the supporting structure of the sub electronic substrate in the electronic device.

FIG. 16 is a perspective view showing another example of the support structure of the feature substrate in the electronic device according to the present invention.

FIG. 17 is an exploded perspective view showing another example of the configuration for connecting the sub electronic substrate and the terminal substrate in the electronic device.

[Explanation of symbols]

 1 ... Main chassis 2 ... Main electronic board 3,4 ... Sub electronic board 5 ...・ ・ ・ ・ ・ ・ ・ ・ Bracket 7 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Feature board 8 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Terminal board 9 ・ ・ ・ ・ ・・ ・ Sub-chassis 12, 13 ・ ・ ・ ・ ・ ・ Connector connector 33 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Feature board support base 34 ・ ・ ・ ・ ・ ・ ・ ・ ・ Support claw 35・ ・ ・ ・ ・ ・ ・ Rotating shaft 41 ・ ・ ・ ・ Receiving connector 44 ・ ・ ・ ・ ・ ・ ・ Connecting connector 56 ・ ・・ ・ ・ ・ ・ ・ ・ ・ Reception connector

Continuation of front page (51) Int.Cl. ⁵ Identification code Office reference number FI technical display location H05K 7/14 M 7301-4E C 7301-4E

Claims (3)

[Claims] 1. A main body side electronic board comprising a main electronic board arranged on a main chassis and a sub electronic board connected to the main electronic board, and detachably arranged on the main chassis. An electronic device comprising a terminal board attached to a sub-chassis and connected to the main body side electronic board via a connector, and a feature board connected to the terminal board via a connector and having an additional function. 2. The electronic device according to claim 1, wherein the connector for connecting the terminal board and the feature board is a board-to-board connector. 3. A plurality of sub electronic boards are provided upright on the main electronic board so as to be connected to the main electronic board, and are arranged between the upper end portions of the respective sub electronic boards. A bracket member is provided that is engaged with the upper end portions of the respective sub-electronic boards and holds the upper end portions of the sub-electronic boards. The feature board is supported by the supporting portions provided on the bracket members. The electronic device according to claim 1 or 2, wherein