WO2011064874A1 - Electronic device and projection type display apparatus - Google Patents

Abstract

Provided is an electronic device which makes it possible to prevent a connection failure of an electric connector. The electronic device comprises a housing (11) in which a replaceable electronic module (9) with a first electric connector (4) is housed, an opening (11b) which is formed in the housing and through which the electronic module can be replaced, a cover (3) which is detachably attached to the housing and covers the opening, a second electric connector (5) which is provided in the housing and which is fitted to the first electric connector, and a pressing means (6) which is provided on the cover and which presses the electronic module in a direction to fit the first electric connector to the second electric connector when the electronic module is received in the housing.

Description

Electronic device and projection display device

The present invention relates to an electronic apparatus and a projection display device having a casing that houses an electronic module configured to be replaceable.

As an example of an electronic device having a housing that houses an electronic module, there is a projection display device including a light source device as an electronic module. Since an electronic module such as a light source device has a lifetime, the electronic module may be configured to be replaceable (see Patent Document 1).

Patent Document 1 discloses a projection display device having a light source device configured to be replaceable. The projection display device has an exterior case, and the light source device and the power supply unit are accommodated in the exterior case. The housing is provided with a cover. The cover can be removed from the housing, and the light source device can be exchanged from the window portion formed by removing the cover. The light source device is electrically connected to a power supply unit inside the housing by a connector.

電子 Electronic modules and covers such as light source devices are often fixed to the housing with screws so that the connectors of the electronic modules are not removed.

JP 2000-258841 A

The electronic module may be replaced by the user. Users unfamiliar with electronic module replacement may not fully screw the electronic module and / or cover onto the housing. In this case, there is a problem that the electrical connector on the electronic module side may not be sufficiently connected to the electrical connector on the housing side.

Also, there is a possibility that the user may use the electronic device without noticing that the user forgot to fix the electronic module with the screw. Even in this case, there is a problem that the electrical connector on the electronic module side may not be sufficiently connected to the electrical connector on the housing side.

Therefore, it is desired to provide an electronic device and a projection display device that can suppress poor connection of electrical connectors.

An object of the present invention is to provide an electronic device and a projection display device that solve the above-described problems.

An electronic device according to an embodiment of the present invention is an electronic module including a first electrical connector, and a housing that accommodates the electronic module configured to be replaceable. The electronic device is formed in the housing and is for replacing the electronic module. An opening, a cover detachably attached to the housing, a cover for closing the opening, a second electrical connector provided in the housing and fitted to the first electrical connector, and a cover, the electronic module being accommodated in the housing And a pressing means for pressing the electronic module in a direction in which the first electrical connector and the second electrical connector are fitted to each other.

Further, the projection type display device in one embodiment of the present invention is a device that projects light as an image. A projection type display device is a light source device including a first electrical connector, and a housing for accommodating the light source device configured to be replaceable, an opening formed in the housing for exchanging the light source device, and a housing And a cover that closes the opening, a second electrical connector that is provided in the housing and is fitted to the first electrical connector, and a cover that is provided in the cover and the light source device is accommodated in the housing. And a pressing means for pressing the light source device in a direction in which the first electrical connector and the second electrical connector are fitted.

According to the electronic apparatus and the projection display device having the above-described configuration, it is possible to suppress a connection failure between the first electrical connector and the second electrical connector.

The above and other objects, features, and advantages of the present invention will become apparent from the following description with reference to the accompanying drawings, which illustrate the present invention.

It is a schematic perspective view of the electronic device in one Embodiment of this invention. It is a schematic perspective view of the electronic device of the state which removed the cover. It is a schematic perspective view of the electronic module inserted in a housing. It is a schematic sectional drawing of an electronic device when an electronic module is inserted in a housing. It is a schematic perspective view of the cover which closes the opening formed in the housing. It is a schematic sectional drawing of the electronic device in the middle of attaching a cover to a housing. It is the enlarged view to which area | region A7 of FIG. 6 was expanded. It is a schematic sectional drawing of an electronic device when a cover is attached to the housing. It is the enlarged view to which area | region A9 of FIG. 8 was expanded.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

The electronic device of the present invention is applicable to all electronic devices having an electronic module housed in a housing and configured to be replaceable.

FIG. 1 is a schematic perspective view of an electronic device according to an embodiment of the present invention. FIG. 2 is a schematic perspective view of the electronic apparatus in a state where a cover provided on the housing is removed. The electronic device includes a housing 11 and an electronic module 9 housed in the housing 11 and configured to be replaceable.

An opening 11 b is formed in the housing 11, and the cover 3 that closes the opening 11 b is configured to be detachable from the housing 11. The electronic module 9 accommodated in the housing 11 is taken out from the housing 11 or inserted into the housing 11 through the opening 11b.

In this embodiment, the housing 11 includes a top portion 1 in which an opening 11b is formed and a bottom portion 2. However, the housing 11 may be configured in any manner as long as the electronic module 9 can be accommodated and the opening 11b for replacing the electronic module 9 is formed.

The cover 3 has a screw hole 3a, and the housing 11 preferably has a screw hole 11a corresponding to the screw hole 3a of the cover. In a state where the screw hole 3a of the cover and the screw hole 11a of the housing are aligned, the housing 11 and the cover 3 are fixed by screws 8 as joining members. The joining member is not limited to the screw 8 as long as the housing 11 and the cover 3 can be joined.

3 and 4 show a state when the electronic module 9 is inserted into the housing 11. However, the casing 11 is not shown in FIG. 3 for the sake of easy viewing.

The electronic device has leads 12 a and 12 b for transmitting electric power from the outside to the electronic module 9. In order to replace the electronic module 9, the lead 12 a provided in the electronic module 9 and the lead 12 b provided in the housing 11 are connected by electrical connectors 4 and 5.

The electronic module 9 inserted into the housing 11 is preferably fixed to the housing 11 or a component provided in the housing with a screw 7 as a joining member in order to prevent the electrical connectors 4 and 5 from being disconnected.

The first electrical connector 4 fixed to the electronic module 9 is configured to be able to fit into the second electrical connector 5 provided in the housing 11. Specifically, the direction in which the first electrical connector 4 and the second electrical connector 5 are fitted is substantially the same as the direction T <b> 1 in which the electronic module 9 is placed in the housing 11.

FIG. 5 is a schematic perspective view of the cover 3 that closes the opening 11 b formed in the housing 11. A leaf spring 6 as a pressing means is provided on the back surface 3b of the cover. Here, the back surface 3 b of the cover refers to one surface of the cover that is directed to the inside of the housing 11 when attached to the housing 11.

In a state where the cover 3 is attached to the housing 11, the leaf spring 6 presses the electronic module 9 accommodated in the housing 11 in the direction in which the first electrical connector 4 and the second electrical connector 5 are fitted. To do. Thereby, the connectivity between the first electrical connector 4 and the second electrical connector 5 is improved only by housing the electronic module 9 in the housing 11 and attaching the cover 3 to the housing 11.

According to the above configuration, even if the screw tightening of the electronic module 9 or the screw tightening between the cover 3 and the housing 11 is insufficient, the leaf spring 6 presses the first electrical connector 4, so the first The connectivity between the electrical connector 4 and the second electrical connector 5 is improved.

If the user does not tighten the screw between the cover 3 and the casing 11, the cover 3 is lifted from the casing 11 by the action of the leaf spring 6. Thereby, the user can easily recognize that the screw is not tightened.

In the present embodiment, the direction in which the first electrical connector 4 and the second electrical connector 5 are fitted is the same as the direction T1 in which the electronic module 9 is placed in the housing 11, and therefore the electronic module in the housing 11 By pressing 9 with the leaf spring 6 provided on the cover 3, the connectivity between the electrical connectors 4 and 5 can be easily improved.

In this embodiment, the leaf spring 6 as the pressing means is preferably provided on the cover 3, but this pressing means may be provided on the electronic module 9. The pressing means may be various types of elastic bodies instead of the leaf spring 6.

Hereinafter, a preferable example of the operation when the cover 3 is attached to the housing 11 will be described in detail with reference to FIGS. FIG. 6 shows an electronic device in the process of attaching the cover 3 to the housing 11, and FIG. 7 is an enlarged view of the region 7A shown in FIG. 8 shows the electronic device when the cover 3 is attached to the housing 11, and FIG. 9 is an enlarged view of the region 9A shown in FIG.

In the present embodiment, the cover 3 is attached to the housing 11 by sliding with respect to the housing 11. Further, the spring plate 6 as the pressing means has a protruding portion 6a protruding from the back surface 3b of the cover. A side surface 6b of the protruding portion 6a on the downstream side in the cover sliding direction T2 is substantially perpendicular to the sliding direction T2.

A protrusion 10 is formed on one surface of the electronic module 9 facing the cover side. The side surface 6b of the leaf spring 6 on the downstream side in the cover sliding direction T2 is in pressure contact with the protrusion 10 of the electronic module when the cover 3 is attached to the housing 11. The leaf spring 6 is pressed from both sides by the force acting on the leaf spring 6 from the cover 3 and the reaction force acting on the leaf spring 6 from the protrusion 10 of the electronic module 9 when the cover 3 is pressed in the sliding direction T2. It is done. And the protrusion part 6a of a leaf | plate spring deform | transforms so that it may extend in the fitting direction T1 of an electronic module. Thereby, the protrusion part 6a of the leaf | plate spring 6 presses the electronic module 9, and the connectivity of the 1st electrical connector 4 and the 2nd electrical connector 5 improves.

The cover 3 is preferably fixed to the housing 11 with screws 8 so that the cover 3 is securely fixed to the housing 11 when the cover 3 is attached to the housing 11.

6 to 9, the slide type cover 3 has been described in detail as a preferred example, but the cover 3 is not limited to the one that is slidably attached to the casing 11.

As an example of the electronic apparatus described above, there is a projection display device such as a projector that projects light from a light source device as an image. When the electronic device is a projection display device, the replaceable electronic module is preferably a light source device that has a relatively short lifetime compared to other components. Such a projection display device includes a light modulation element (not shown) for converting light from a light source into an image, and a projection lens (not shown) for projecting light converted into an image by the light modulation element. And having.

Although the preferred embodiments of the present invention have been presented and described in detail above, the present invention is not limited to the above-described embodiments, and it is understood that various changes and modifications can be made without departing from the gist. I want to be.

DESCRIPTION OF SYMBOLS 1 1st housing | casing part 2 2nd housing | casing part 3 Cover 3a Screw hole 4 1st electrical connector 5 2nd electrical connector 6 Leaf spring 7 Screw 8 Screw 9 Electronic module 10 Protrusion part 11 Housing 11a Screw hole 11b Opening 12a Lead 12b provided in the electronic module Lead provided in the housing

Claims (4)

An electronic module comprising a first electrical connector, the housing accommodating the electronic module configured to be replaceable;
An opening formed in the housing for replacing the electronic module;
A cover that is detachable from the housing and closes the opening;
A second electrical connector provided in the housing and mated with the first electrical connector;
A pressing means that is provided on the cover and presses the electronic module in a direction in which the first electrical connector and the second electrical connector are fitted when the electronic module is housed in the housing; , Having electronic equipment. The pressing means is attached to one surface of the cover that is directed to the inside of the housing,
The electronic device according to claim 1, wherein an insertion direction in which the electronic module is inserted through the opening and a direction in which the first electrical connector is inserted into the second electrical connector are substantially the same. The cover is configured to slide with respect to the housing and be attached to the housing.
On one surface of the electronic module directed to the cover side, when the cover is attached to the housing, a protrusion is formed that presses against the pressing means from the downstream side in the sliding direction of the cover.
The insertion means for inserting the electronic module by a force acting on the pressing means from the cover and a reaction force acting on the pressing means from the protrusion when the cover is attached to the housing. The electronic device according to claim 2, comprising a leaf spring that deforms in a direction and presses the electronic module in the insertion direction. A projection display device that projects light as an image,
A light source device provided with a first electrical connector and housing the light source device configured to be replaceable;
An opening formed in the housing for replacing the light source device;
A cover that is detachable from the housing and closes the opening;
A second electrical connector provided in the housing and mated with the first electrical connector;
A pressing unit that is provided on the cover and presses the light source device in a direction in which the first electrical connector and the second electrical connector are fitted when the light source device is housed in the housing; A projection type display device.

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