JP3108238U - Fixed board for printed circuit board and printed circuit board having the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a printed circuit board fixing plate capable of avoiding disconnection of an electrical connection between a mounting part and a printed board by firmly fixing a mounted part such as a module on the upper surface of the printed board without using screws. Printed circuit board.
A printed circuit board fixing plate is a fixing plate for fixing a mounting component having a flat upper surface to the upper surface of the printed circuit board, has a planar shape and covers at least a part of the upper surface of the mounting component. And when the flat part is covered from the upper surface of the mounting component, it is located outside the peripheral edge of the mounting component and corresponding to that of the printed circuit board. A plurality of engaging portions that can be inserted into through holes penetrating the upper and lower surfaces of the substrate and engaged with the through holes are provided.
[Selection] Figure 2

Description

  The present invention relates to a printed circuit board fixing plate and a printed circuit board having the same, and more particularly to a printed circuit board fixing plate for fixing a mounting component such as a module to the upper surface of the printed circuit board and a printed circuit board having the same.

  Conventionally, a board-to-board system has been adopted for electrical connection of a mounting component such as a module to a printed circuit board. That is, as shown in FIG. 1, first, a first board-to-board connector (hereinafter abbreviated as a first connector) 11 is provided at a predetermined position on the upper surface of the printed circuit board 1. A second board-to-board connector (hereinafter abbreviated as a second connector) 211 that is electrically connected to the first connector 11 is provided on the lower surface of one side 21 of the quadrilateral module 2. .

  Since the first connector 11 has a certain thickness, after connecting the second connector 211 on one side 21 of the module 2 to the first connector 11, one side of the module 2 is connected with a plurality of screws 3. The other side 22 opposite to the side 21 is screwed to the printed circuit board 1 to support the other side 22 and hold the both sides of the module 2 horizontally. Further, the module 2 is further fixed, and vibration, collision, etc. Thus, the electrical connection between the first connector 11 and the second connector 211 is disconnected to avoid a short circuit state.

  However, in the conventional method of supporting and fixing the module 2 with the plurality of screws 3, although the other side 22 of the module 2 is fixed, the second connector 211 and the first connector 21 on the one side 21 are fixed. The electrical connection with the connector 11 may still be disengaged, and the fixing effect is not yet ideal, and when the screws 3 are screwed together so that both sides of the module 2 are held horizontally, the screw is always screwed. The screwing depth of 3 must be noted, and if the screwing depth is too large, the module 2 may be broken or broken, which is quite complicated.

  In view of such problems, the first object of the present invention is to firmly fix a mounting component such as a module on the upper surface of the printed circuit board without using screws, and to electrically connect the mounted component and the printed circuit board. An object of the present invention is to provide a fixed board for a printed circuit board that can be prevented from coming off and a printed circuit board including the same.

  The second object of the present invention is not only a local portion outside the electrical connection between the mounting component and the printed circuit board, but also receives a force from above as well as the stability of the electrical connection. An object of the present invention is to provide a printed circuit board fixing plate and a printed circuit board including the same.

  A third object of the present invention is to provide a printed circuit board fixing plate capable of horizontally supporting the mounting component on the upper surface of the printed circuit board, and a printed circuit board including the same.

  In order to achieve the above object, the present invention is a fixing plate for fixing a mounting component having a flat upper surface to the upper surface of a printed circuit board, which is flat and covers at least a part of the upper surface of the mounting component. A flat portion extending downward from the periphery of the flat portion, and when the flat portion is covered from the upper surface of the mounting component, the flat portion is located outside the peripheral edge of the mounting component and corresponding to that of the printed circuit board. A printed circuit board fixing plate comprising a plurality of engaging portions that can be inserted into through holes penetrating the upper and lower surfaces of the board and engage with the through holes.

  The printed circuit board fixing plate according to this configuration includes the planar portion and the plurality of engaging portions, and therefore, when the mounting component is covered from above and further fixed to the printed circuit board, the mounting portion is mounted on the planar portion. Limiting the components (first purpose), particularly when the flat portion hits the flat upper surface of the mounted component and presses the electrical connection between the mounted component and the printed circuit board from above, making it even stronger Since the (second purpose) can be achieved, the effect of fixing is greatly increased as compared with the conventional case, and the disconnection of the electrical connection between the mounting component and the printed board can be surely avoided.

  Here, the mounting component refers to a module, a heat sink, or a CPU having a flat upper surface.

  The present invention also provides a fixing plate for further fixing a module having a flat upper surface and the lower surface of which is electrically connected to the second connector provided on the upper surface of the printed circuit board via the first connector. A planar portion covering at least a part of the upper surface of the module and extending downward from a peripheral edge of the planar portion, and covering the planar portion from the upper surface of the module. A plurality of engaging portions that are located outside the peripheral edge of the printed circuit board and that are in positions corresponding to those of the printed circuit board and that can be inserted into the through holes penetrating the upper and lower surfaces of the substrate and engage with the through holes; And projecting from at least one of the plurality of engaging portions, and when the plurality of engaging portions are already engaged with the through holes on the substrate, there is a gap between the lower surface of the module and the upper surface of the printed circuit board. The above Further provides for a printed board fixing plate, characterized in that a support portion for supporting the Yuru from below.

  The printed circuit board fixing plate according to this configuration secures the electrical connection between the module and the printed circuit board by firmly fixing the module to the upper surface of the printed circuit board as described above (first and second purposes). In addition, since the support portion is provided, the module can be supported horizontally on the upper surface of the printed circuit board (third object).

  And this invention has a flat upper surface, and the lower surface of the one side is a quadrilateral that is electrically connected to the second connector provided on the upper surface of the printed circuit board via the first connector. A fixing plate for further fixing the module, having a planar shape having four sides corresponding to the four sides of the module, and a flat portion covering all parts other than the one side of the upper surface of the module, and the plane When extending from the three sides other than the side corresponding to the one side of the part and covering the planar part from the upper surface of the module, it is located outside the corresponding three sides of the module, and that of the printed circuit board. A plurality of engaging portions which are in corresponding positions and are inserted into through holes penetrating the upper and lower surfaces of the substrate and can be engaged with the through holes; and the one side of the plurality of engaging portions Engaging part on the other side opposite When the plurality of engaging portions are already engaged with the through holes on the substrate, the support is provided between the lower surface of the module and the upper surface of the printed circuit board and supports the other side of the module from below. And a printed circuit board fixing plate.

  The printed circuit board fixing plate according to this configuration can cover a portion other than the one side of the upper surface of the module with the flat surface portion, and thus completely restricts the module so that the module and the printed circuit board In addition to ensuring electrical connection (first and second purposes), since the support portion is provided, the module can be supported horizontally on the upper surface of the printed circuit board (third purpose). .

  The inventor further provides a printed circuit board based on the printed circuit board fixing plate. The printed circuit board includes a printed circuit board having two upper and lower surfaces and a second connector on the upper surface, and a flat upper surface and a lower surface of the second connector via the first connector. And a module electrically connected to the printed circuit board, wherein the module is further supported and fixed to the printed circuit board by the printed circuit board fixing plate.

  That is, the printed circuit board fixing plate of the present invention and the printed circuit board including the same can support a mounting component such as a module without using a screw and can be firmly fixed to the printed circuit board. Electrical connection with the printed circuit board can be ensured.

  Hereinafter, a preferred embodiment of a printed circuit board fixing plate and a printed circuit board having the same according to the present invention will be described in detail.

  2 is an exploded perspective view showing a preferred embodiment of a printed circuit board fixing plate and a printed circuit board having the same according to the present invention, FIG. 3 is a perspective view after assembly of FIG. 2, and FIG. FIG. 4 is a sectional view taken along line 4-4.

  As shown in FIGS. 2 to 4, the printed circuit board of the present invention has a printed circuit board 4, a module 5 electrically connected to the printed circuit board 4, and the module 5 further supported and fixed to the printed circuit board 4. And a fixed board 6 for printed circuit board.

  More specifically, the printed circuit board 4 has upper and lower surfaces 41 and 42, and a second board-to-board connector (hereinafter abbreviated as a second connector) 43 is provided at a predetermined position on the upper surface 41. Yes. The printed circuit board 4 is provided with a plurality of through-holes 44 that penetrate the upper and lower surfaces 41 and 42 as described below.

  The module 5 has a flat upper surface and a first board-to-board connector (hereinafter abbreviated as a first connector) 511 electrically connected to the second connector 43 on the lower surface of one side 51 thereof. Is provided.

  In the present embodiment, the shape of the module 5 is a quadrilateral having the one side 51 and the other side 52 opposed to the one side 51.

  The printed circuit board fixing plate 6 is integrally formed of a metal material so as to have a flat surface portion 7, a plurality of engaging portions 8, and a plurality of support portions 9.

  The planar portion 7 has a planar shape having four sides corresponding to the four sides of the module 5, and covers all parts other than the one side 51 on the upper surface of the module 5. In addition, a plurality of heat radiating through holes 71 are formed in the plane portion 7.

  The plurality of engaging portions 8 respectively extend downward from three sides other than the side corresponding to the one side 51 of the plane portion 7, and when the plane portion 7 is covered from the upper surface of the module 5, A plurality of through holes 44 that are located outside the corresponding three sides and that correspond to that of the printed circuit board 4 and penetrate the upper and lower surfaces of the substrate 4 are inserted and engaged with the through holes 44, respectively. Yes.

  More specifically, each engaging portion 8 has a width larger than that of the through-hole 44 and is also smaller than the through-hole 44 with the holding portion 81 on the upper surface side of the through-hole 44 after the insertion. The insertion portion 82 protrudes to the lower surface side of the through hole 44 after the insertion.

  In addition, each of the insertion portions 82 has an L shape including a vertically oriented portion 821 and a horizontally oriented portion 822 in the present embodiment. When each insertion portion 82 is inserted into the through hole 44, the laterally facing portion 822 is exposed from the through hole 44 as shown in FIG. 4. Further, as shown in FIG. 5, the free ends of the lateral portions 822 of the respective insertion portions 82 of the plurality of engagement portions 8 are bent to lock the printed circuit board 4 from below.

  The plurality of support portions 9 protrude from the left and right ends of the holding portion 81 of the engagement portion 8 on the other side 52 of the plurality of engagement portions 8 and protrude from the bottom surface of the other side 52 of the module 5. And the upper side 41 of the printed circuit board 4 and supports the other side of the module 5 from below.

  Hereinafter, attachment of the printed board fixing plate 6 to the module 5 and the printed board 4 will be described.

  First, the plurality of support portions 9 of the printed board fixing plate 6 are inserted between the lower surface of the other side 52 of the module 5 and the upper surface 41 of the printed circuit board 4, and the plurality of engaging portions 8 are connected to the printed circuit board 4. 4 to expose the plurality of lateral portions 822 as shown in FIG. 4, and then the free of each lateral portion 822 as shown in FIG. The module 5 can be horizontally supported and fixed to the printed circuit board 4 by bending the ends and locking the printed circuit board 4 from below.

  Since the printed circuit board fixing plate 6 completely covers a portion other than the one side 51 of the module 5, electrical connection between the first connector 511 of the module 5 and the second connector 43 of the printed circuit board 4 is made. Can be secured. Further, since the plurality of heat radiation through holes 71 are formed in the flat portion 7, it is useful for heat radiation of the module 5.

  The embodiments described above are intended to clarify the technical contents of the present invention, and the present invention is not limited to such specific examples and is not construed in a narrow sense. Various modifications can be made within the scope described in the spirit of the present invention and the scope of claims for utility model registration.

  For example, in the above-described embodiments, the module is supported and fixed by the printed circuit board fixing plate. However, the present invention is not limited to this, and the mounting components such as the heat sink and CPU are supported by the printed circuit board fixing plate. It may be fixed. Also, the number of printed circuit board fixing plates is not limited to one, but may be plural.

  In the embodiment, the printed circuit board is locked from below by bending only the free end of the horizontal part. However, the present invention is not limited to this, and the entire horizontal part may be bent and brought into contact with the printed circuit board. In the embodiment, the printed circuit board fixing plate includes a plurality of support portions. However, the present invention is not limited thereto, and only one support portion may be provided. The installation position of the support portion is not limited to the other side, and may be at another position.

  The printed circuit board fixing board of the present invention and the printed circuit board provided with the fixed board can secure the electrical connection between the mounted component and the printed circuit board by fixing the mounted component such as a module to the printed circuit board. The parts can be supported horizontally.

It is a perspective view which shows the conventional method of fixing a module to a printed circuit board. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view showing a preferred embodiment of a printed circuit board fixing plate and a printed circuit board including the same according to the present invention. It is a perspective view after the assembly of FIG. FIG. 4 is a cross-sectional view taken along line 4-4 in FIG. It is a perspective view after the free end of the horizontal part in the said embodiment was bent.

Explanation of symbols

4 Printed circuit board 41 Upper surface 42 Lower surface 43 Second connector 44 Through hole 5 Module 51 One side 511 First connector 52 Other side 6 Printed circuit board fixing plate 7 Flat surface portion 71 Heat radiation hole 8 Engaging portion 81 Holding Part 82 Insertion part 821 Vertical part 822 Horizontal part 9 Support part

Claims (7)

A fixing plate for fixing a mounting component having a flat upper surface to the upper surface of a printed circuit board,
A flat portion covering the at least part of the upper surface of the mounting component;
Each extending downward from the periphery of the planar portion, and when the planar portion is covered from the upper surface of the mounting component, is located outside the periphery of the mounting component and at a position corresponding to that of the printed circuit board. A printed circuit board fixing plate, comprising: a plurality of engaging portions that can be inserted into through holes penetrating the upper and lower surfaces and engage with the through holes. A fixing plate that has a flat upper surface and whose lower surface is further fixed to a module that is electrically connected to a second connector provided on the upper surface of the printed circuit board via the first connector;
A flat portion covering the at least part of the upper surface of the module;
When extending from the peripheral edge of the flat part and covering the flat part from the upper surface of the module, the flat part is located outside the peripheral part of the module and at a position corresponding to that of the printed circuit board. A plurality of engaging portions that can be inserted into the through holes penetrating the surface and engage with the through holes;
When protruding from at least one of the plurality of engaging portions, and the plurality of engaging portions are already engaged with the through holes on the substrate, the lower surface of the module and the upper surface of the printed circuit board A printed circuit board fixing plate comprising: a support portion for supporting the module from below. Fixing that further fixes a quadrilateral module having a flat upper surface and the lower surface of one side thereof electrically connected to the second connector provided on the upper surface of the printed circuit board via the first connector A board,
A flat portion having four sides corresponding to the four sides of the module, and a flat portion covering all portions other than the one side of the upper surface of the module;
Each of the planar portions extends downward from three sides other than the side corresponding to the one side, and when the planar portion is covered from the upper surface of the module, is located outside the corresponding three sides of the module, and the print A plurality of engaging portions that are in positions corresponding to those of the substrate and can be inserted into the through holes penetrating the upper and lower surfaces of the substrate and engage with the through holes;
The module protrudes from an engaging portion on the other side facing the one side of the plurality of engaging portions, and when the plurality of engaging portions are already engaged with the through holes on the substrate, the module A printed circuit board fixing plate, comprising: a support portion between the lower surface of the printed circuit board and the upper surface of the printed circuit board and supporting the other side of the module from below.   Each engaging portion has a width larger than that of the through hole and is still on the upper surface side of the through hole after the insertion, and is further bent after the insertion to lock the printed circuit board from below. 4. The printed circuit board fixing plate according to claim 2, further comprising an insertion portion that protrudes toward the lower surface side of the through hole.   Each insertion part has an L-shape consisting of a vertical part and a horizontal part, and when inserted into the through-hole, the horizontal part is exposed from the through-hole. The printed circuit board fixing plate according to claim 4, wherein the printed circuit board can be locked from below by bending a free end.   The printed circuit board fixing plate according to claim 1, wherein a plurality of through holes for heat dissipation are formed in the planar portion. A printed circuit board having two upper and lower surfaces and provided with a second connector on the upper surface, and a flat upper surface and the lower surface electrically connected to the second connector via the first connector In a printed circuit board provided with a module,
A printed circuit board, wherein the module is further supported and fixed to the printed circuit board by the printed circuit board fixing board according to any one of claims 1 to 6.

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