JP2021174653A - Device, structure and method for opening/closing electronic circuit - Google Patents

Abstract

To provide a device, structure and method for opening/closing an electronic circuit, capable of opening/closing an electronic circuit under a predetermined condition, the electronic circuit being accommodated at the inside of a housing, etc.SOLUTION: In a device for opening/closing an electronic circuit, a second member 2 is provided on one side of a space partitioned by a first member 1, and a conductor circuit, for example, such as a printed pattern, is formed on a surface of the second member 2. A contact conductor 3 is electrically connected to the conductor circuit. The contact conductor 3 is disposed at a position capable of contacting with an operation member 4 that penetrates through the first member 1 to be inserted into the one side from the other side.SELECTED DRAWING: Figure 1

Description

The present invention relates to a switchgear, a switchgear structure, and a switchgear method for an electronic circuit.

Circuits mounted on electronic devices are operated by the manufacturer during the manufacturing process or at the stage of completion testing, switching from open to closed or closed to open, but after completion or once operated. After starting, the user may not have a chance to perform the switching operation, or a switch or contact which is not desirable to be arbitrarily switched by the user may be provided.
Patent Document 1 discloses a configuration in which a test pin is connected to a circuit board in the device by inserting the test pin into the device via an insertion hole formed in a cover of the device.
Patent Document 2 discloses a configuration in which a clip is inserted into a device via an opening hole formed in a cover of the device to connect to a terminal.

Japanese Unexamined Patent Publication No. 2006-309746 Japanese Unexamined Patent Publication No. 2006-127966

However, the test pin described in Patent Document 1 merely has a function of being electrically connected to a circuit in the device and extracting a signal, and is required under the usage conditions which are the background of the present invention. It cannot be used when trying to open or close a circuit in a device. Further, the clip described in Patent Document 2 is merely electrically connected to a circuit in the device via a terminal, and is in the device as needed, as in the technique described in Patent Document 1. It cannot be used when trying to open or close a circuit.

An object of the present invention is to provide an opening / closing device, an opening / closing structure, and an opening / closing method for an electronic circuit capable of opening / closing an electronic circuit housed in a housing or the like from the outside.

In order to solve the above problems, the electronic circuit switchgear according to the first aspect of the present invention is characterized by the following configuration.
A first member that partitions the space into one side and the other side, a second member provided on the one side partitioned by the first member, and a second member provided on the second member. It has a conductor circuit and a contact conductor connected to the conductor circuit, and the contact conductor can come into contact with an operating member that penetrates the first member and is inserted from the other side to one side. An electronic circuit opening / closing device that is arranged at various positions and that at least one of the contact conductor and the operating member is elastically deformed to come into contact with each other to open or close the conductor circuit.

The method for opening and closing an electronic circuit according to a second aspect of the present invention is characterized by the following configuration.
An operating member inserted from the other side of the space is brought into contact with a contact conductor connected to a conductor circuit provided in the second member provided on one side of the space partitioned by the first member. A method for opening and closing an electronic circuit, comprising a step and a step of deforming at least one of these by contact between the contact conductor and an operating member to switch the conductor circuit to open or closed.

According to the present invention, an electronic circuit can be operated from the outside by a switchgear, an opening / closing structure, and an opening / closing method of the electronic circuit.

It is sectional drawing of the minimum structure example of this invention. It is a perspective view which looked at the state before inserting the operation member into the switchgear which concerns on one Embodiment of this invention from obliquely above. It is a perspective view of the state in which the operation member is inserted into the switchgear of FIG. It is sectional drawing of the main part of FIG. It is sectional drawing which shows the modification of the operation member of one Embodiment. It is sectional drawing of another embodiment of this invention.

A switchgear for an electronic circuit according to a minimum configuration example of the present invention will be described with reference to FIG.
Reference numeral 1 is a first member, for example, the space inside the housing of the electronic device is divided into one side (upper side in FIG. 1) and the other side (lower side in FIG. 1). A second member 2 is provided on the one side of the space partitioned by the first member 1, and a conductor circuit such as a print pattern (not shown) is provided on the surface of the second member 2. To) is formed. A contact conductor 3 is electrically connected to the conductor circuit.
The contact conductor 3 is arranged at a position where it can come into contact with an operating member 4 which penetrates the first member 1 and is inserted from the other side to one side, and the contact conductor 3 and the operating member. At least one of 4 and 4 comes into contact with each other by elastic deformation to switch the conductor circuit open or closed.

In the switchgear of the electronic circuit having the above configuration, since the second member 2 is provided on one side of the first member 1, the second member 2 is used in addition to the first member 1. Cannot be operated directly from the side of. Further, when the second member 2 is to be operated from the other side, the operation member 4 is inserted from the other side to one side so as to penetrate the first member 1, and the contact conductor 3 is inserted. Just make contact with. That is, by inserting the operating member 4 and bringing it into contact with the contact conductor 3, the contact conductor 3 is elastically deformed in the direction indicated by the arrow A in FIG. 1, and / or the operating member 4 in the direction indicated by the arrow B in FIG. Can be elastically deformed, and the conductor circuit on the surface of the second member 2 can be opened and closed by this elastic deformation.

A method of opening and closing an electronic circuit according to a minimum configuration example of the present invention will be described with reference to FIG.
In this opening / closing method, the contact conductor 3 connected to the conductor circuit provided in the second member 2 provided on one side of the space partitioned by the first member 1 is connected to the contact conductor 3 from the other side of the space. It includes a step of bringing the inserted operating member 4 into contact, and a step of deforming at least one of these by contact between the contact conductor 3 and the operating member 4 to switch the conductor circuit to open or closed.

In the method of opening and closing the electronic circuit having the above configuration, since the second member 2 is provided on one side of the first member 1, the second member 2 is used in addition to the first member 1. Cannot be operated directly from the side of. Further, when the second member 2 is to be operated from the other side, the operation member 4 is inserted from the other side to one side so as to penetrate the first member 1, and the contact conductor 3 is inserted. Just make contact with. That is, the operating member 4 can elastically deform the contact conductor 3 in the direction indicated by the arrow A in FIG. 1 and / or elastically deform the operating member 4 in the direction indicated by the arrow B in FIG. As a result, the electronic circuit provided on the surface of the second member 2 can be opened and closed.

A switchgear for an electronic circuit and a switchgear structure according to an embodiment of the present invention will be described with reference to FIGS. 2 to 4. In FIGS. 2 to 4, the same components as those in FIG. 1 are designated by the same reference numerals to simplify the description.
The first member 1 is, for example, a housing for accommodating an electronic device (in the illustrated example, a part of the sheet metal constituting the housing is shown, and since it is a metal, it has conductivity). A second member 2 is housed inside the first member 1. The second member 2 is, for example, a circuit board provided with a conductor pattern and mounting components (both not shown) connected to the conductor pattern.

A contact conductor 3 is arranged on the upper surface of the second member 2.
The contact conductor 3 is made of, for example, a plate-shaped metal, and has a pair of contact conductors 31. The base end portions of the pair of contact conductors 31 are integrally connected to the connecting portion 34 having the flat plate portions 32 and 33 at the top and bottom, and the tip portions are in contact with each other in a curved state in the direction of approaching each other.
In the contact conductor 3, for example, the contact conductors 31, 31 and the flat plate portions 32, 33 are vertically and horizontally centered on the connecting portion 34 by a process of punching a plate-shaped metal material (for example, brass or phosphor bronze). It can be formed by forming a developed plate material having a protruding shape and bending the plate material.

More specifically, the base end portions of the flat plate portions 32 and 33 are bent in a direction orthogonal to the connecting portion 34, and the base end portions of the contact conductors 31 and 31 are elastically deformed by the curved portions at the tips. It is formed into a shape as shown in FIGS. 2 and 3 by bending it to a contact position.
The contact conductor 3 is provided in a state where the flat plate portion 32 is brought into contact with the upper surface of the second member 2 and electrically connected to the conductor circuit on the second member 2. Further, the contact conductors 31 and 31 are in contact with each other in an elastically deformed state.

The first member 1 is formed with an operating opening 1a that penetrates the first member 1. The operating opening 1a has an inner diameter larger than the outer diameter of the rod-shaped operating member 4. The operating member 4 is made of a conductor such as metal, and has a rigidity sufficient to elastically deform the contact conductor 31.
That is, by appropriately selecting and configuring a combination of Young's modulus, outer diameter, and length of the metal or the like constituting the operating member 4, the contact conductor 31 is deformed into a contact or non-contact state. It is configured to be operable. The operation member 4 may be made of a material such as plastic or wood, and the surface thereof may be plated with metal to impart conductivity only to the surface. Further, in the illustrated example, the tip of the operating member 4 is formed in a tapered shape in order to guide the tip to the contact portion upon contact with the contact conductor 31 and to facilitate its own deformation.

The operation of the switching device having the above configuration will be described together with the method of switching the electronic circuit.
When the operating member 4 is not inserted into the operating opening 1a, the contact conductors 31 and 31 are elastically deformed in contact with each other and are electrically conductive with each other.
When the operating member 4 is inserted into the operating opening 1a and inserted between the pair of contact conductors 31 and 31, the operating member 4 is guided by the tapered portion at the tip and inserted while expanding between the contact conductors 31 and 31. As shown in FIGS. 3 and 4, the conductor reaches a portion having a constant outer diameter separated from the tip by a predetermined distance. In this state, the operating member 4 is held in a state of being sandwiched between the contact conductors 31 and 31, and is electrically connected in contact with the contact conductors 31 and 31.

According to the above configuration, the electronic circuit on the circuit board as the second member 2 and the first member 1 as the grounding point are brought into contact with each other by inserting the operating member 4 and bringing the contact conductor 3 into contact with each other while deforming the contact conductor 3. The normally open contact between them can be closed. That is, by operating the contact conductor 3 with the operating member 4, the function of a switch for closing the electronic circuit can be fulfilled.

In the case of the illustrated example, the operation opening 1a is formed by machining the first member 1 with a tool such as a drill. Therefore, for example, even when the surface of the housing or the like as the first member 1 is coated with an electrically insulating coating or an electrically insulating film is formed, the inner circumference of the operation opening 1a , The conductive metal constituting the first member 1 is exposed so that it can come into direct contact with the operating member 4, and thus the operating member 4 can be electrically connected to the grounding point. can.

The portion of the base end side of the operating member 4 corresponding to the inside of the operating opening 1a is electrically connected to the first member 1 by being brought into contact with the inner peripheral surface of the operating opening 1a. .. Generally, since the first member 1 which is the housing of the electronic device is grounded to zero potential, the surface of the second member 2 passes through the contact conductors 31 to the operating members 4 to the first member 1. A predetermined part of the conductor circuit is grounded.
By the above steps, the electronic circuit on the second member 2 can be opened and closed from the outside of the first member 1 (housing).

A modified example of the operating member of one embodiment will be described with reference to FIG.
The operation member 4A of this modified example has a flange portion 41 having a diameter larger than that of other portions at the base end portion, and the flange portion 41 is formed of a conductor such as metal integrally with the other portion.
The operating member 4A of this modified example is inserted between the contact conductors 31 and 31 from the operating opening 1a as in FIG. 3, and is sandwiched between the contact conductors 31, 31. Then, it is electrically connected to a conductor circuit on the second member 2 connected to each of these contact conductors 31 or an electronic component mounted on the conductor circuit.
Further, by inserting the operating member 4A into the other side of the first member 1 over a predetermined length, the flange portion 41 of the operating member 4A comes into contact with the surface of the first member 1. In this way, when the flange portion 41 comes into contact with the first member 1 and the contact conductor 31 is electrically connected to the first member 1 via the operating member 4A, the contact conductor 31 is connected. The electronic circuit on the connected second member 2) (not shown) can be grounded.

That is, in this modified example, as in the examples of FIGS. 2 to 4, the operating member 4A is inserted or removed to form an electronic circuit on the second member 2 and the first member 1 as a grounding point. The circuit connecting between them can be opened and closed.
Further, in this modification, by providing a large-diameter flange portion 41 in a part of the operating member 4A, the contact area between the first member 1 and the operating member 4A can be increased, and the contact resistance can be increased. Can be reduced, or the contact between the first member 1 and the operating member 4A can be made more reliable.
Further, in the above-described embodiment, the operating member 4 is made of a conductor, but it can also be made of an electric insulator as described below.
That is, in the examples of FIGS. 2 to 4, since the connecting plate 31 is a plate-shaped member integrated with the flat plate portions 32 and 33 and the connecting portion 34 which are other constituent members, the pair of contact conductors 31 and 31 are electrically connected. However, even if the pair of contact conductors 31 and 31 have a separate and independent configuration (electrically insulated from each other) different from that in FIG. 2, and are electrically connected only by contacting each other. good.

In this way, when the contact conductors 31 and 31 are contacted or separated by the operating member 4, the operating member 4 made of an insulator is inserted between the contact conductors 31 and 31 to form the contact conductors 31 and 31. By separating the contact conductors 31 and 31 so as not to come into contact with each other, the electronic circuits connected to the contact conductors 31 and 31 can be electrically separated (opened).
That is, the operating member 4 has a function of opening a normally closed contact between the contact conductors 31 and 31, and can function as a switch for opening an electronic circuit as a whole.

In the above embodiment, the operating member 4 is inserted between the contact conductors 31 and 31 to deform the contact conductors 31 and 31, but the configuration of another embodiment shown in FIG. 6 may be adopted. ..
The contact conductor 3A of FIG. 6 is made of a material and a shape having high rigidity with respect to the operating member 4, and is configured to deform the operating member 4.

That is, in the other embodiment shown in FIG. 6, the operating member 4 is elastically deformed by inserting the operating member 4 through the operating opening 1a of the first member 1 and bringing it into contact with the contact conductor 3A. It contacts the contact conductor 3A and is electrically connected.
Therefore, as in the case of one embodiment, the electronic circuit connected to the contact conductor 3A can be connected to the grounding point or the like via the operating member 4, that is, the function as a switch for operating the electronic circuit can be fulfilled.

The electronic device to which the present invention can be applied is not limited to the above embodiment, and for example, different shapes and numbers of contact members are adopted, or different shapes are adopted as operating members. Of course, you can do it.

Although the embodiments of the present invention have been described in detail with reference to the drawings, the specific configuration is not limited to this embodiment, and design changes and the like within a range not deviating from the gist of the present invention are also included.

The present invention can be used for switchgear, switchgear, and switchgear of electronic circuits.

1 First member 1a Operation opening 2 Second member 3, 3A, 31 Contact conductor 4, 4A, 4B Operation member 32, 33 Flat plate part 34 Connecting part

Claims (8)

The first member that divides the space into one side and the other side,
A second member provided on the one side partitioned by the first member, and
The conductor circuit provided in the second member and
The contact conductor connected to the conductor circuit and
Have,
The contact conductor is arranged at a position where it can come into contact with an operating member that penetrates the first member and is inserted from the other side to one side, and at least one of the contact conductor and the operating member. By elastically deforming, they come into contact with each other to open or close the conductor circuit.
Switchgear for electronic circuits. A plurality of the contact conductors are arranged so as to face each other.
The operating members are inserted between the contact conductors facing each other.
The switchgear for an electronic circuit according to claim 1. The operating member is formed of a conductor.
The contact conductor is connected to the first member via the operating member.
The switchgear for an electronic circuit according to any one of claims 1 or 2. A plurality of the conductor circuits are electrically insulated from each other and are provided on the second member.
The contact conductors are connected to each of the plurality of conductor circuits, and the plurality of conductor circuits are connected to each other by contacting each other.
The switchgear for an electronic circuit according to claim 2. The operating member is formed of an insulator and is inserted between the plurality of contact conductors to electrically insulate the plurality of the conductor circuits from each other.
The switchgear for an electronic circuit according to claim 4. The second member is a circuit board, and the first member is a member constituting a housing for accommodating the circuit board.
The switchgear for an electronic circuit according to any one of claims 1 to 5. The switchgear for an electronic circuit according to any one of claims 1 to 6, and an operating member for operating the contact conductor of the switchgear.
The opening and closing structure of the electronic circuit having. An operating member inserted from the other side of the space is brought into contact with a contact conductor connected to a conductor circuit provided in the second member provided on one side of the space partitioned by the first member. Process and
A step of deforming at least one of these by contact between the contact conductor and the operating member to switch the conductor circuit to open or closed.
A method of opening and closing an electronic circuit having.

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