JP5445238B2 - Circuit board case - Google Patents

Description

  The present invention relates to a circuit board case for fixing a circuit board used in an air conditioner.

  The configuration of a conventional circuit board case is as follows.

  That is, a circuit board case comprising a board part on which a part part, which is an electrical part, is placed, a claw part provided on the case part and having elasticity, and a rib that sandwiches and fixes the board part with the claw part. And a release member that is integrally formed with the claw portion and that has a tip extending downward from the tip of the claw portion, and a hole provided directly below the release member on the case portion. (For example, refer patent document 1).

Japanese Patent Laid-Open No. 08-125357

  The problem in the conventional example is that it is difficult to attach and remove the circuit part without touching the part part from the case part.

  That is, in the conventional product, when attaching and removing the circuit part without touching the component part from the case part, put a finger in the gap between the peripheral part of the board part and the case part, Only the part is picked up and attached and removed, but when the gap between the peripheral part of the board part and the case part is small, it is difficult for the fingers to enter and the circuit part does not touch the part part from the case part. It becomes difficult to attach and remove.

  Here, it is possible to increase the gap between the peripheral edge portion of the substrate portion and the case portion and make it easier for the fingers to enter, but the volume of the case portion increases, resulting in an increase in the product. is there.

  Therefore, an object of the present invention is to easily attach and detach a circuit part without touching a part part from a case part.

In order to achieve this object, the present invention is formed by a box-shaped case portion having an open top surface, a lid portion that closes the opening of the case portion, and a circuit portion that is mounted in the case portion. The portion is formed of a flat plate-like substrate portion and a component portion fixed to the substrate portion, and the case portion and the lid portion are provided with an detachable portion that allows the case portion and the lid portion to be detachable. And a board detachable part that allows the board part to be detachably provided in the case part, a first notch part is provided on one side surface of the case part, and the lid part is fitted into the first notch part. The substrate attaching / detaching portion includes a notch lid portion, the substrate attaching / detaching portion extending from the case portion to the lower surface of the substrate portion, the case portion extending from the case portion, and flexing inward and outward of the case portion. A hook portion hooked on the upper surface of the hook portion, The one side surface hooking portion formed on one side surface side hooking portion provided on one side surface side of the case portion and the other side surface side hooking portion provided on the other side surface facing the one side surface side of the case portion. Is provided so as to face the first cutout portion, the lower end of the first cutout portion is provided below the lower surface of the substrate portion, and a finger is passed through the first cutout portion, A circuit board case in which the circuit part can be attached to and removed from the case part, and the shape of the first cutout part is such that the upper part has a larger opening than the lower part.

  This achieves the initial objective.

  As described above, according to the present invention, the circuit portion can be easily attached and detached from the case portion without touching the component portion.

That is, in the present invention, the first cutout portion is provided on one side surface of the case portion, the substrate attaching / detaching portion extends from the case portion to the lower surface of the substrate portion, and extends from the case portion. The hook part is formed from a hook part that bends outward and hooks onto the upper surface of the substrate part. The hook part is provided on one side surface side of the case part and the other side surface facing the one side surface of the case part. The one side surface hooking portion is provided to face the first cutout portion, and the lower end of the first cutout portion is located below the lower surface of the substrate portion. The first notch is configured so that a finger can be passed through the first notch and the circuit part can be attached to and removed from the case. The shape of the first notch is configured such that the upper part has a larger opening than the lower part. It is a thing.

  That is, when attaching the circuit part to the case part, the peripheral part of the board part located on the outer periphery of the component part fixed to the board part of the circuit part is picked, the finger is passed through the first cutout part, and the board part is The hook is bent and attached between the protrusion and the hook. Further, when taking out the circuit portion from the case portion, a finger is passed through the first cutout portion, and while bending the one side side hooking portion located opposite to the first cutout portion, outward of the case portion, The circuit part is removed from the board attaching / detaching part by picking and lifting the finger on the peripheral part of the board part, and the peripheral part of the board part is picked and taken out from the case part.

  Based on these results, the circuit portion can be easily attached and detached from the case portion without touching the component portion.

  Further, the present invention does not insert a finger into the gap between the peripheral portion of the substrate portion and the side surface of the case portion, pick only the peripheral portion of the substrate portion, and attach and detach the peripheral portion of the substrate portion. There is no need to increase the gap between the case portion and the side surface of the case portion, and the case portion can be reduced in size.

1 is a schematic perspective view showing Embodiment 1 of the present invention. Schematic perspective view of the main body Schematic perspective view of the main body

(Embodiment 1)
Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

  As shown in FIGS. 1 and 2, the circuit board case according to the present embodiment is mounted in the case portion 1, a box-shaped case portion 1 having an open top surface, a lid portion 2 that closes the opening of the case portion 1, and the case portion 1. The circuit part 3 is formed.

  The circuit part 3 is formed of a flat board part 4 and a component part 5 fixed to the upper surface of the board part 4.

  The case portion 1 and the lid portion 2 are provided with a detachable portion 6 that allows the case portion 1 and the lid portion 2 to be detachable.

  The case portion 1 is provided with a substrate attaching / detaching portion 7 that allows the substrate portion 4 to be freely attached and detached within the case portion 1, and a substantially rectangular first cutout portion 8 is provided on one side surface of the case portion 1.

  The lid 2 includes a substantially rectangular cutout lid 9 extending downward from the peripheral edge at the peripheral edge of the lid 2. When the lid portion 2 is attached to the case portion 1, the notch lid portion 9 fits into the first notch portion 8, closes the opening of the first notch portion 8, and is joined to the back surface of the one side hook portion 12. It is.

  The substrate attaching / detaching portion 7 includes a substantially flat projection 10 extending upward from the bottom surface of the case portion 1 to the lower surface of the substrate portion 4, and extending upward from the bottom surface of the case portion 1. And a hook portion 11 that is bent to the upper surface of the substrate portion 4 and bent. The hook portion 11 is formed by a support column portion 11a extending upward from the bottom surface of the case portion 1 and a claw portion 11b protruding inward from the upper portion of the support column portion 11a. The claw portion 11b is hooked on the upper surface of the substrate portion 4 by bending outward and outward. The hooking portion 11 is formed from one side hooking portion 12 provided on one side of the case portion 1 and another side hooking portion 13 provided on the other side facing the one side of the case 1. Yes.

  The feature of the present embodiment is that the one side hooking portion 12 is provided to face the first cutout portion 8, and the lower end of the first cutout portion is provided below the lower surface of the substrate portion 4. The point is that a finger is passed through the first cutout portion 8, and the circuit portion 3 is attached to and removed from the case portion 1.

  That is, when the circuit unit 3 is attached to the case unit 1, the peripheral portion of the substrate unit 4 located on the outer periphery of the component unit 5 fixed to the substrate unit 4 of the circuit unit 3 is picked and the first cutout unit 8 is formed. Through the finger, the board part 4 is attached between the protrusion part 10 and the hook part 11 while bending the hook part 11. Further, when the circuit unit 3 is taken out from the case unit 1, a finger is passed through the first cutout 8, and the one side surface hooking unit 12 positioned opposite to the first cutout 8 is disposed outside the case unit 1. The circuit part 3 is removed from the board attaching / detaching part 7 by picking up and lifting the finger to the peripheral part of the board part 4 while being bent in the direction, and the peripheral part of the board part 4 is picked and taken out from the case part 1.

  From these results, the circuit portion 3 can be easily attached and detached from the case portion 1 without touching the component portion 5.

  That is, by attaching and detaching the circuit unit 3 from the case unit 1 without touching the component unit 5, it is possible to easily remove and tilt the component generated by directly touching the component unit of the circuit unit. be able to.

  Further, the present invention does not insert a finger into the gap between the peripheral edge of the substrate portion 4 and the side surface of the case portion 1 and pick only the peripheral edge of the substrate portion 4 to attach or remove the substrate portion. There is no need to increase the gap between the peripheral edge of 4 and the side surface of the case portion 1, and the case portion 1 can be reduced in size.

  The shape of the first notch 8 is such that the upper part has a larger opening than the lower part. Specifically, the shape of the first notch portion 8 is a substantially trapezoidal shape when viewed from one side of the case portion 1, and the upper side is longer than the lower side.

  As a result, the peripheral portion of the substrate portion 4 located on the outer periphery of the component portion 5 fixed to the substrate portion 4 of the circuit portion 3 is picked, a finger is passed through the first cutout portion 8, and the circuit portion 3 is attached to the case portion 1. When attaching, a finger can easily enter the first cutout portion 8, so that the circuit portion 3 can be easily attached without touching the component portion 5 from the case portion 1.

  Further, the one side surface hooking portion 12 is provided near the peripheral portion on one side of the first cutout portion 8. Specifically, the first cutout portion 8 has a substantially square shape, and the shape of the peripheral portion of the first cutout portion 8 is a substantially U shape. In this substantially U-shaped peripheral part, there are two peripheral parts extending in the vertical direction facing each other, and one of the peripheral parts is one side peripheral part and the other peripheral part is the other peripheral part. To do. Here, the distance between the one side surface hooking portion 12 and the other side peripheral portion is longer than the distance between the one side surface hooking portion 12 and the one side peripheral portion. That is, a space portion 14 through which a finger passes exists between the one side surface hooking portion 12 and the other side peripheral edge portion.

  As a result, the peripheral portion of the substrate portion 4 located on the outer periphery of the component portion 5 fixed to the substrate portion 4 of the circuit portion 3 is picked, the finger is passed through the first cutout portion 8, and the finger is further moved to the space portion 14. By moving, the board | substrate part 4 can be easily attached between the projection part 10 and the hook part 11, bending the hook part 11. FIG. Further, when the circuit unit 3 is taken out from the case unit 1, a finger is passed through the first cutout 8, and the one side surface hooking unit 12 positioned opposite to the first cutout 8 is disposed outside the case unit 1. While bending in the direction, insert another finger from the space portion 14, hook the finger on the peripheral portion of the substrate portion 4, and lift the finger to remove the circuit portion 3 from the substrate attaching / detaching portion 7, and pinch the peripheral portion of the substrate portion 4, It is taken out from the case part 1.

  Further, the one side surface hooking portion 12 is provided near the left peripheral portion of the first cutout portion 8 when viewed from one side surface of the case portion 1. That is, the space portion 14 between the one side surface hooking portion 12 and the other side peripheral edge portion is located on the right side of the first notch portion 8 when viewed from one side surface of the case portion 1, and the one side surface side hooking portion. 12 is located on the left side of the first cutout portion 8 when viewed from one side of the case portion 1.

  In general, there are many right-handed people in Japan. Naturally, when the circuit part is taken out from the case part, it is often done with the right hand, and a finger is hooked on the upper part of the one side side hooking part 12, The operation of bending the side hooking portion 12 outward of the case portion 1 is easier for the thumb than for the index finger.

  That is, when the circuit part 3 is taken out from the case part 1, the right thumb is passed through the first notch part 8, and the one side side hook part 12 positioned facing the first notch part 8 is placed with the right thumb. The circuit part 3 can be easily removed from the board attaching / detaching part 7 by inserting the right index finger from the space part 14 while being bent outward from the part 1 and hooking and lifting the finger on the peripheral part of the board part 4. Here, since the right thumb is located on the left side of the right index finger, the one side side hooking portion 12 is located on the left side of the first cutout portion 8 when viewed from one side of the case portion 1. The operation of bending the side surface hooking portion 12 to the outside of the case portion 1 is easy.

  As a result, when viewed from one side surface of the case portion 1, the one side surface hooking portion 12 is located on the left side of the first notch portion 8, and the space portion 14 is located on the right side of the first notch portion 8. As a result, a right-handed person can easily attach and remove the circuit unit 3 from the case unit 1 without touching the component unit 5.

  Further, the other side surface hooking portion 13 is fixed so as not to bend. Specifically, the other side surface hooking portion 13 extending upward from the bottom surface of the case portion 1 is connected to and fixed to the side surface on the other side surface of the case portion 1.

  That is, if both the other side surface hooking portion 13 and the one side surface hooking portion 12 are configured to bend, the operation is not stable when trying to insert, and if you try to force it in, it will easily break and easily break, Although it is easy to come off due to an impact, the other side side hooking part 13 does not bend due to this configuration. Therefore, after the board part 4 is hooked on the other side side hooking part 13 first, the one side side hooking part 12 is bent. Although it is necessary to be attached, since it is sufficient to bend only the hooking portion 12 on one side surface, the operation is stable, and the hooking portion is not damaged.

  Further, when the lid portion 2 is attached to the case portion 1, the notch lid portion 9 is joined to the back surface of the one side surface hooking portion 12, and the one side surface side hooking portion 12 does not bend outward, so that the substrate portion 4 is impacted or the like. Can be prevented from coming off.

  The attaching / detaching portion 6 is formed of a protruding portion 15 extending outward from both opposite side surfaces of the case portion 1 and a case hooking portion 16 that is hooked to the protruding portion 15 from the peripheral edge portion of the lid portion 2. 9, a guide portion 17 extending from the peripheral edge of the notch lid portion 9 along the inner surface of one side surface of the case portion 1 is provided. Specifically, the attaching / detaching portion 6 includes a projection portion 15 having a substantially triangular cross-section extending outward from the opposite upper portions of both side surfaces of the case portion 1 and a lid portion 2 that is hooked so as to surround the projection portion 15. And a substantially U-shaped case hooking portion 16 extending downward from the peripheral edge portion. The notch lid portion 9 includes a substantially U-shaped guide portion 17 extending from the peripheral edge portion of the notch lid portion 9 along the inner surface of one side surface of the case portion 1.

  That is, when the lid portion 2 is attached to the case portion 1, first, the notch lid portion 9 is moved to the case portion 1 while the guide portion 17 provided on the notch lid portion 9 of the lid portion 2 is placed along the inner surface of the case portion 1. The first notch portion 8 is inserted from above, and further inserted so that the side surface of the case portion 1 enters between the case hooking portion 16 of the lid portion 2 and the guide portion 17 of the notch lid portion 9. Thereby, the positional relationship between the case portion 1 and the lid portion 2 becomes a positional relationship where the lid portion 2 is attached, and the lid portion 2 can be easily attached to the case portion 1.

  Moreover, the component part of a circuit part is comprised by several electronic components, and the heavy electronic component with a heavy weight in these electronic components is located in the one side surface side of the case part in a board | substrate part.

  As a result, it is necessary to pinch the end surface of the board portion 4 with one hand when the board portion 4 is mounted on the case portion 1, but since the vicinity of a heavy electronic component having a heavy weight can be pinched, the case portion 1 can be stably picked. The board part 4 can be easily mounted on the board.

  In addition, the substrate portion 4 of the circuit portion 3 has a substantially rectangular shape, and the long side of the substrate portion 4 is configured to be positioned on one side surface and the other side surface side of the case portion 1.

  That is, when the circuit portion 3 is attached to the case portion 1, the peripheral edge portion on one side surface of the substrate portion 4 is picked, a finger is passed through the first notch portion 8, and the protrusion portion 10 and the other side surface hook portion 13. The other side surface peripheral edge of the substrate portion 4 is inserted between the two and the one side surface hooking portion 12 is bent outward from the case portion 1 while the other side surface peripheral edge portion of the substrate portion 4 is hooked to the one side surface side. It is attached to the part 12. Here, by picking the peripheral edge of one side of the substrate 4 that is the long side of the substrate 4, the distance between the protrusion 10 and the other side hook 13 and the finger of the substantially rectangular substrate 4 Compared to the case of picking a short side, the substrate portion 4 can be easily attached to the case portion 1.

  Further, the height of the side surface of the case portion 1 is higher than the height of the circuit portion 3, and the second notch portion 18 is provided on the side surface of the case portion.

  Thereby, since the lead wire of the board | substrate part 4 can be previously passed and fixed to the 2nd notch part of the case part 1, there is no biting of a lead wire when attaching the cover part 2, and the cover part 2 is in the case part 1. Can be easily mounted.

  The shape of the second notch 18 is such that the upper part has a larger opening than the lower part. This facilitates insertion when the lead wire is inserted into the second notch 18, and the lead wire can be fixed in advance, so that the lead wire is not caught when the lid portion 2 is attached, and the case portion 1 The lid portion 2 can be easily mounted on.

  In addition, it is configured such that silk printing is performed on the edge of the substrate portion 4 with the fingers.

  As a result, the position where the board part 4 may be pinched can be easily informed, the possibility of touching parts that are vulnerable to static electricity such as parts, patterns, and solder parts can be reduced, and damage due to static electricity during assembly can be prevented. It is.

  As described above, according to the present invention, the circuit portion can be easily attached and detached from the case portion without touching the component portion.

  That is, in the present invention, the first cutout portion is provided on one side surface of the case portion, the substrate attaching / detaching portion extends from the case portion to the lower surface of the substrate portion, and extends from the case portion. The hook part is formed from a hook part that bends outward and hooks onto the upper surface of the substrate part. The hook part is provided on one side surface side of the case part and the other side surface facing the one side surface of the case part. The one side surface hooking portion is provided to face the first cutout portion, and the lower end of the first cutout portion is located below the lower surface of the substrate portion. In this configuration, a finger can be passed through the first cutout portion, and a circuit portion can be attached to and removed from the case portion.

  That is, when attaching the circuit part to the case part, the peripheral part of the board part located on the outer periphery of the component part fixed to the board part of the circuit part is picked, the finger is passed through the first cutout part, and the board part is The hook is bent and attached between the protrusion and the hook. Further, when taking out the circuit portion from the case portion, a finger is passed through the first cutout portion, and while bending the one side side hooking portion located opposite to the first cutout portion, outward of the case portion, The circuit part is removed from the board attaching / detaching part by picking and lifting the finger on the peripheral part of the board part, and the peripheral part of the board part is picked and taken out from the case part.

  Based on these results, the circuit portion can be easily attached and detached from the case portion without touching the component portion.

  Therefore, it is expected to be utilized as a circuit board case for fixing a circuit board used in an air conditioner for home use or office use.

DESCRIPTION OF SYMBOLS 1 Case part 2 Cover part 3 Circuit part 4 Board | substrate part 5 Component part 6 Attachment / detachment part 7 Board | substrate attachment / detachment part 8 1st notch part 9 Notch cover part 10 Protrusion part 11 Hook part 11a Strut part 11b Claw part 12 One side side hook part 13 Hooking part on the other side surface 14 Space part 15 Projection part 16 Case hooking part 17 Guide part 18 Second notch part

Claims (9)

Formed from a box-shaped case portion having an open top surface, a lid portion that closes the opening of the case portion, and a circuit portion mounted in the case portion, the circuit portion comprising a flat plate-shaped substrate portion and the substrate The case portion and the lid portion are provided with a detachable portion that allows the case portion and the lid portion to be detachable, and the substrate portion can be detachably attached to the case portion. And a first cutout portion on one side surface of the case portion, and the lid portion includes a cutout lid portion that fits into the first cutout portion. A protrusion extending from the case portion to the lower surface of the substrate portion; and a hook portion extending from the case portion and bent inward and outward of the case portion and hooked on the upper surface of the substrate portion, The hook portion is provided on one side surface of the case portion on one side surface side. Formed from a hook portion and another side surface hook portion provided on the other side surface facing the one side surface of the case portion, the one side surface hook portion provided to face the first cutout portion, A configuration in which a lower end of the first cutout portion is provided to be positioned below the lower surface of the substrate portion, a finger is passed through the first cutout portion, and the circuit portion is attached to and removed from the case portion. and then, the shape of the first cutout, upper circuitry board case having a structure opening is larger than a bottom. It said one side engagement portion, said first notch portion on one side the circuit board case according to claim 1 which has a structure which is provided on the peripheral portion side of the of. 3. The circuit board case according to claim 1, wherein the one side surface hooking portion is provided near a peripheral portion on the left side of the first notch portion when viewed from one side surface of the case portion. The circuit board case according to any one of claims 1 to 3 , wherein the other side surface hook portion is fixed so as not to bend. The attaching / detaching portion is formed by a protruding portion extending outward from both opposite side surfaces of the case portion, and a hooking portion that is hooked with the protruding portion from a peripheral edge portion of the lid portion. circuit board case according to claim 1, the peripheral portion has a structure in which a guide portion of said extending along the inner surface of one side of the case section of the cutout lid 4. The substrate portion of the circuit portion is a substantially rectangular shape, a long side of the substrate portion, according to any of claims 1-5 which is configured to be positioned on one side and the other side surface of the case portion Circuit board case. The height of the side surface of the case portion is higher than the height of the circuit portion, the side surface of the case portion, provided with a second notch, the circuit board case according to any one of claims 1 to 5. The circuit board case according to claim 7 , wherein the second notch has a shape in which an upper portion has a larger opening than a lower portion. The circuit board case according to any one of claims 1 to 8 , wherein a silk print is applied to a place where the finger is picked by a peripheral edge of the board part.

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