KR20170071244A

KR20170071244A - PCB mounting apparatus

Info

Publication number: KR20170071244A
Application number: KR1020150179337A
Authority: KR
Inventors: 김자민
Original assignee: 한국단자공업 주식회사
Priority date: 2015-12-15
Filing date: 2015-12-15
Publication date: 2017-06-23

Abstract

The present invention relates to a substrate mounting apparatus. The substrate mounting apparatus of the present invention comprises a coupling cylinder 16 formed in a first housing 10 and a cylindrical body 16 inserted into a cylinder inner space 18 of the coupling cylinder 16 and formed at the tip of the coupling cylinder 16, And an engaging boss 36 for blocking elastic deformation of the deformable elastic fixing part 22. [ The coupling cylinder 16 is provided with a first cylinder opening portion 20 between the elastic fixing portions 22 and is provided at a position corresponding to the first cylinder opening portion 20, The open portion 43 of the valve body 42 is formed. The engaging boss 36 can be pulled out from the tub internal space 18 of the coupling cylinder 16 in a state where the engaging boss 36 is inclined through the first cylinder opening portion 20 and the opening portion 43. This is because the second housing 30 having the coupling boss 36 formed therein is moved obliquely with respect to the first housing 10. According to the present invention, there is an advantage that the coupling boss 36 is separated from the coupling barrel 16 so that the coupling barrel 16 and the substrate 40 are not damaged.

Description

[0001] The present invention relates to a PCB mounting apparatus,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a substrate mounting apparatus, and more particularly, to a substrate mounting apparatus that mounts a substrate without using a separate component while preventing the substrate from being damaged during separation between a first housing and a second housing, To a substrate mounting apparatus.

In general, a substrate refers to a printed circuit board (PCB). However, the substrate in the present invention is not limited to a printed circuit board, but may mean a plate having a predetermined shape. In general, a printed circuit board has a circuit pattern therein and various devices are mounted to perform specific functions. Such a printed circuit board is used in various electronic products and electronic products.

The substrate is generally mounted inside the housing using fasteners such as screws. However, using a screw to fasten a substrate requires a tool, and there is a drawback that it is necessary to unscrew and unscrew the screws one by one.

In order to solve this problem, in recent years, a cylindrical structure is disposed in a first housing in which a substrate is installed, and a fixing rod penetrating and fixing the substrate to the second housing for shielding the inner space of the first housing while being inserted into the cylindrical structure I have. By doing so, the substrate was mounted in the first housing and the second housing without using a separate component such as a screw.

However, in the above structure, there is a problem that the fixing rod passing through the substrate damages the substrate in the process of detaching the second housing from the first housing. This is because the fixing rod passing through the substrate is not moved in the vertical direction with respect to the through hole of the substrate and does not come out from the through hole. That is, the second housing is not vertically moved with respect to the first housing in order to release the engagement in a state where the first housing and the second housing are engaged, and the second housing is lifted from the other end with reference to one end, The rod tilts and escapes from the cylindrical structure to damage the through hole of the substrate or to cause scratches on the surface of the substrate.

Korean Patent Publication No. 10-2014-103497 Korean Patent No. 10-0507601

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems of the prior art, and it is an object of the present invention to provide a method of mounting a substrate on a substrate, Thereby preventing the substrate from being damaged.

According to an aspect of the present invention for achieving the above object, the present invention is characterized in that the hooking piece of the first housing and the hooking jaw of the second housing are hooked so that the first housing and the second housing are fastened, The substrate mounting apparatus according to claim 1, further comprising: a coupling passage formed in a first inner space of the first housing and passing through a coupling through hole formed in the substrate, a coupling passage formed in a second inner space of the second housing, Wherein a coupling through hole of the substrate is formed adjacent to the edge of the substrate and corresponds to the coupling through hole and the coupling through hole is opened to an edge of the substrate through an opening portion, A first cylinder open portion is formed in the opening portion and separated from the coupling cylinder through the coupling boss, the first cylinder open portion, and the opening portion of the substrate.

At the upper end of the coupling cylinder, elastic fixing parts are formed to face each other and are closely contacted to the inner surface of the coupling through hole of the substrate to fix the substrate, and the elastic fixing part is supported by the coupling boss.

And an abutting rib is formed on the outer surface of the elastic fixing part so as to be in close contact with the inner surface of the coupling through hole so that only the pressing rib of the outer surface of the elastic fixing part is in close contact with the inner surface of the coupling through hole.

The outer surface of the coupling boss is formed with a boss protruding from the inner surface of the elastic fixing part.

The coupling passage coupling bosses are provided along the edge of the substrate.

A guide protrusion is formed in the outer surface of the coupling boss at a position corresponding to the opening of the first cylinder open part and the substrate, the guide protrusion being sharpened toward the tip.

The guide protrusion is formed to extend along the longitudinal direction of the engaging boss.

In the substrate mounting apparatus according to the present invention, the following effects can be obtained.

In the substrate mounting apparatus of the present invention, the substrate can be mounted in the inner space formed by the first housing and the second housing without any additional parts. By mounting the second housing to the first housing, the substrate is firmly mounted The coupling boss of the second housing can pass obliquely through the opening of the through hole formed in the substrate and the first passage opening of the first housing in the process of separating the second housing from the first housing, It is possible to separate the housing from the first housing.

1 is a perspective view showing a configuration of a first housing and a second housing in which a substrate mounting apparatus according to the present invention is employed;
2 is an exploded perspective view showing a configuration of an embodiment of the present invention.
FIG. 3 is a partial cross-sectional perspective view showing the essential structure of an embodiment of the present invention. FIG.
4 is a perspective view showing a coupling cylinder constituting an embodiment of the present invention.
5 is a perspective view showing an engaging boss constituting an embodiment of the present invention.
6 is a plan sectional view showing an important structure of an embodiment of the present invention.

Hereinafter, some embodiments of the present invention will be described in detail with reference to exemplary drawings. It should be noted that, in adding reference numerals to the constituent elements of the drawings, the same constituent elements are denoted by the same reference symbols as possible even if they are shown in different drawings. In the following description of the embodiments of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the understanding why the present invention is not intended to be interpreted.

In describing the components of the embodiment of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are intended to distinguish the constituent elements from other constituent elements, and the terms do not limit the nature, order or order of the constituent elements. When a component is described as being "connected", "coupled", or "connected" to another component, the component may be directly connected or connected to the other component, Quot; may be "connected," "coupled," or "connected. &Quot;

According to the drawings, the first body 12 forms the framework of the first housing 10. In this embodiment, a first inner space 14 is formed in the first body 12 and the first inner space 14 is opened to the upper portion of the first housing 10. However, the structure of the first housing 10 is not necessarily the same as shown in the drawing, and any structure may be used as long as the first inner space 14 has the substrate 40 to be described below. .

And a plurality of hooking pieces 15 surrounding the outer surface of the first housing 10. The hooking piece 15 is hooked on the hooking jaw 33 of the second housing 30 to be described below so that the first and second housings 10 and 30 are fastened to each other. The hook piece 15 has a hook hole 15 'on which the hook jaw 33 is seated. The number of hooking pieces 15 varies depending on the size of the first housing 10. In the present embodiment, a total of four are formed along two edges along one edge of the first housing 10.

A plurality of coupling tubes 16 protrude from the first inner space 14 of the first housing 10. The coupling cylinder 16 may be formed adjacent to the inner surface of the side wall of the first housing 10. Of course, the position of the coupling cylinder 16 is not necessarily adjacent to the inner surface of the side wall. The coupling cylinder 16 may be located at a position corresponding to the edge of the substrate 40, which will be described below. In general, since the substrate 40 has a rectangular plate shape, the coupling cylinder 16 is formed at a position corresponding to four corners of the substrate 40, and the inner surface of the side wall of the first housing 10, Respectively.

The coupling cylinder 16 has a cylinder internal space 18 formed therein. A coupling boss 36, which will be described below, is inserted into the cylinder interior space 18. The cylinder interior space 18 is opened to the upper end of the coupling cylinder 16, but is also communicated with the outside through the first cylinder opening part 20. [ The first cylinder openings 20 are formed over substantially the entire length of the coupling cylinder 16 in the longitudinal direction of the coupling cylinder 16. The first cylinder opening 20 is a path through which the engaging boss 36, which will be described below, exits the cylinder interior space 18.

At the upper end of the coupling cylinder 16, elastic fixing portions 22 are formed to face each other. The two elastic fixing parts 22 are formed to face each other. The elastic fixing part 22 can be elastically deformed in a predetermined manner. This is because of the presence of the first cylinder openings 20 and the second cylinder openings 24 opposite to the first cylinder openings 20. In other words, the elastic deformation of the elastic fixing portion 22 is possible due to the presence of the second cylinder portion 24. And the second cylinder openings 24 are formed only at positions corresponding to the elastic fixing portions 22. [

On the outer surface of the elastic fixing part (22), a fixing rib (26) is formed in the longitudinal direction of the elastic fixing part (22). The contact rib 26 is formed at a position protruding most outward from the outer surface of the elastic fixing part 22. [ The contact rib 26 is a portion which is in close contact with the inner surface of the coupling through hole 42 of the substrate 40, which will be described below. The entire outer surface of the resilient fixing portion 22 is not brought into close contact with the inner surface of the engaging through hole 42 due to the presence of the abutting rib 26 so that insertion of the engaging tube 16 into the engaging through hole 42 is relatively . That is, the contact rib 26 serves to minimize the frictional force.

The second housing 30 serves to shield the first internal space 14 formed in the first housing 10. The second body 32 has a skeleton of the second housing 30 and the second body 32 has a structure similar to that of the first body 12. On the outer surface of the second housing 30, a latching protrusion 33 is formed at a position corresponding to the latching piece 15. In this embodiment, there are four hooks 33 in total. A second internal space (34) is formed in the second body (32). The second inner space (34) communicates with the first inner space (14).

A coupling boss (36) is formed on the inner surface of the first body (32). The coupling boss 36 is inserted into the barrel inner space 18 of the coupling barrel 16. The engaging boss 36 is inserted into the barrel inner space 18 to prevent the elastic fixing part 22 from being elastically deformed so that the pressing rib 26 of the elastic fixing part 22 presses the substrate 40, And is kept in a state in which it is in close contact with the inner surface of the coupling through hole 42 in FIG.

The engaging boss 36 has a shape that can be inserted into the barrel inner space 18. That is, in this embodiment, it is substantially cylindrical. A boss protrusion 38 is elongated in the longitudinal direction of the engaging boss 36 at a position corresponding to the elastic fixing part 22 in the outer surface of the engaging boss 36. [ The coupling boss 36 is inserted into the barrel inner space 18 and the boss projection 38 is closely attached to the inner surface of the elastic fixing part 22. [ Since only the boss protrusion 38 is in close contact with the inner surface of the elastic fixing part 22, the frictional force can be minimized during the process of inserting the engaging boss 36 into the tub interior space 18 or during the withdrawing process.

A guide protrusion 39 is formed at a portion of the outer surface of the engaging boss 36 corresponding to the first through-hole 20. The guide protrusion 39 is formed over the entire length of the engaging boss 36 and has a sharp shape as seen from the cross section shown in FIG. The outer surface of the guide protrusion 39 is elastically deformed by guiding one end of the elastic fixing part 42 when the engaging boss 36 escapes to the outside through the first tube opening part 20 Can play a role. It is needless to say that the guide boss 36 does not need the role of the guide protrusion 39 when the coupling boss 36 passes exactly through the center of the first cylinder 20, The elastic fixing part 42 is elastically deformed when it is eccentrically moved toward the one elastic fixing part 42 without passing through the center of the elastic fixing part 20. [

A plurality of elements are mounted on the substrate 40 which is seated in the first internal space 14. [ A circuit pattern is formed on the substrate 40 to electrically connect the elements. For example, a fork terminal, a tap terminal, or the like may be mounted on the substrate 40. The fuse terminal or the tap terminal may be electrically connected to the fuse or the relay.

A through hole 42 is formed in the substrate 40 at a position adjacent to the edge. The coupling through holes 42 are formed through the substrate 40 vertically. The coupling through hole 42 is formed at a position corresponding to the coupling cylinder 16. Therefore, in this embodiment, at least four engagement through holes 42 are formed.

The coupling through hole 42 is opened to the edge of the substrate 40 through the opening 43. The opening 43 of the coupling through hole 42 is a portion through which the coupling boss 36 passes.

Hereinafter, the use of the substrate mounting apparatus according to the present invention will be described in detail.

The substrate mounting apparatus of the present invention can be applied to various products. For example, it can be applied to electronic products in which a printed circuit board is used, and can be applied to a junction block or the like in an automobile.

First, the substrate 40 is positioned in the first inner space 14 by the coupling cylinder 16 of the first housing 10. When the elastic fixing part 22 at the tip end of the coupling cylinder 16 enters the coupling through hole 42 and the fitting rib 26 of the elastic fixing part 22 is seated on the inner surface of the coupling through hole 42, The substrate 40 can be mounted at a predetermined position. Of course, a support end (not shown) for supporting the lower surface of the substrate 40 may protrude into the first inner space 14 of the first housing 10. However, the substrate 40 can be supported at a height corresponding to the elastic fixing part 22 by the presence of the elastic fixing part 22. [

Next, the second housing 30 is mounted on the first housing 10. In the process of mounting the second housing 30 to the first housing 10, when the second housing 30 moves downward from the vertical direction with respect to the first housing 10, Is directly introduced into the cylinder interior space 18 of the coupling cylinder 16. That is, the engaging boss 36 enters the tub internal space 18 through the space between the elastic fixing portions 22.

The boss projection 38 of the engaging boss 36 comes into close contact with the inner surface of the elastic fixing part 22 so that the elastic fixing part 22 is elastically deformed when the engaging boss 36 enters the barrel inner space 18. [ So that the contact ribs 26 are completely in contact with the inner surface of the coupling through hole 42 of the substrate 40. The elastic fixing part 22 is not elastically deformed by the coupling boss 36 in a state in which the elastic fixing part 22 is in close contact with the coupling through hole 42 of the substrate 40. [ Therefore, the substrate 40 is firmly attached to the coupling cylinder 16 without being detached from the coupling cylinder 16 unless the coupling boss 36 is released from the cylinder internal space 18. [

The second housing 30 is attached to the hook 15 'of the hook piece 15 of the first housing 10 at the final stage in which the first housing 10 and the second housing 30 are coupled together, The first housing 10 and the second housing 30 are engaged with each other.

Next, a process of separating the second housing 30 from the first housing 10 will be described. The first housing 10 and the second housing 30 are coupled by a plurality of the hooking pieces 15 and the hooking jaws 33. When all the hooking pieces 15 are engaged with the hooking jaws 33 at the same time, Lt; / RTI > The hooking pieces 15 at the one side edge of the first housing 10 are separated from the corresponding hooking jaws 33 and the hooking jaws 33 are first removed from the second housing 30, In the first housing 10.

In this process, the second housing 30 is separated from the first housing 10 at an angle. Therefore, the engaging boss 36 of the second housing 30 is also inclined, and the leading end of the engaging boss 36 is inserted into the first tub opening portion 20 through the first tub opening portion 20 It will come out.

In this process, the coupling boss 36 is released from the coupling hole 42 through the opening 43. If the opening 43 is not provided, the engaging boss 36 can not escape from the engaging through hole 42. If an excessive force is applied, a portion corresponding to the opening 43 may be damaged. Of course, if the coupling cylinder 16 is not provided with the first cylinder opening 20, the coupling cylinder 16 is broken and the board 40 is damaged.

However, in the present invention, the coupling bosses 36 pass through the first cylinder openings 20 and the openings 43 of the substrate 40 in the cylinder interior space 18 of the coupling cylinder 16, (16), so that the coupling cylinder (16) and the substrate (40) are prevented from being damaged.

Meanwhile, in the process of separating the second housing 30 diagonally, the coupling bosses 36 on the opposite sides of the one coupling boss 36 also escape from the coupling cylinder 16. In this case, however, the base of the coupling boss 36 first comes out of the coupling cylinder 16.

The foregoing description is merely illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the scope of the present invention but to limit the scope of the technical idea of the present invention. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

10: first housing 12: first body
14: first inner space 15:
15 ': Hook ball 16: Coupling cylinder
18: barrel inner space 20: first cylinder opening
22: elastic fixing part 24: second cylinder open part
26: contact rib 30: second housing
32: second body 33:
34: second inner space 36: engaging boss
38: boss projection 39: guide projection
40: substrate 42: coupling through hole
43:

Claims

A substrate mounting apparatus in which a hook of a first housing and a hook of a second housing are engaged to fasten the first housing and the second housing and the substrate is mounted in the housing,
A coupling passage formed in the first inner space of the first housing and passing through a coupling through hole formed in the substrate,
And a coupling boss formed in the second inner space of the second housing and inserted into the coupling cylinder,
Wherein a coupling through hole of the substrate is formed adjacent to an edge of the substrate and is formed at a position corresponding to the coupling and the coupling through hole is opened to an edge of the substrate through an opening portion, And is separated from the coupling cylinder through the coupling boss, the first cylinder opening, and the opening of the substrate.

The substrate mounting apparatus as claimed in claim 1, wherein an elastic fixing part is formed on an upper end of the coupling cylinder so as to face each other, and the substrate is fixed to the inner surface of the coupling through hole of the substrate, and the elastic fixing part is supported by the coupling boss.

3. The substrate mounting apparatus according to claim 2, wherein an elastic rib is formed on an outer surface of the elastic fixing part so as to be in close contact with an inner surface of the coupling through hole, and only an elastic rib in the outer surface of the elastic fixing part is in close contact with the inner surface of the coupling through hole.

4. The substrate mounting apparatus as claimed in claim 3, wherein a boss projecting from the inner surface of the elastic fixing part protrudes from the outer surface of the coupling boss.

5. The substrate mounting apparatus as claimed in claim 4, wherein a plurality of coupling pass bending bosses are provided along an edge of the substrate.

The substrate mounting apparatus according to any one of claims 1 to 5, wherein a guide protrusion is formed at a position corresponding to the opening of the first cylinder open portion and the substrate, .

The substrate mounting apparatus according to claim 6, wherein the guide protrusion is formed to extend along a longitudinal direction of the coupling boss.