KR19990009668U - Knob assembly and indicator assembly structure of electronic products - Google Patents

Abstract

The present invention discloses a knob assembly and an indicator assembly structure of an electronic product.

The present invention includes a front panel each having a plurality of installation holes and a guide boss having a display hole in the front, a plurality of coupling pins protruding from the back; Knobs having pushers are fitted in the mounting holes of the front panel so as to be exposed, and the knobs are formed to be integrally connected to the support ribs by tension ribs that are elastically deformable, and a plurality of knobs can be welded to the support ribs. A knob assembly having coupling holes of which are formed, an extension plate formed on one side of the support rib, and an assembly hole formed on the front side of the extension plate so as to be located behind the display hole; The display part is formed in the front part of the body part so that it may fit in the display hole of a front panel, and the back part of the body part is comprised by the indicator formed so that the fixing part inserted in the assembly hole of an extension plate may be coaxial with a display part.

Therefore, since the indicator is manufactured with a simple configuration and structure in which the indicator is assembled together by welding of the front panel and the knob assembly, the assembly process is not only simple and easy, but also the assembly failure is greatly reduced such that the indicator is prevented from thermal deformation. The assemblability is remarkably improved.

Description

Knob assembly and indicator assembly structure of electronic products

The present invention relates to an electronic product, and more particularly, to a knob assembly and an indicator assembly structure of an electronic product to improve the assembly of the product.

In general, electronic products are equipped with various kinds of function selection knobs to set electronic functions according to their purpose. As an example of an electronic product, a video cassette recorder is described. Modes such as power, play, eject, review, and the like are performed by manipulation of the function selection knob by the user.

However, since the electronic product performs various modes by operating the function selection button, it is necessary to make the user recognize which function of the electronic product is being executed in order to improve the ease of use. For example, the execution state of the mode is displayed by driving the display lamp to be recognized by the user, and a light emitting diode (LED) is mainly used as the display lamp.

As an example of such an electronic product, as shown in FIG. 1, a video cassette recorder (VCR) is equipped with a front panel (Fp) in front of a main chassis (Mc), and the front panel (Fp). A plurality of knob assemblies Ka are mounted thereon. Thus, the user can perform various functions of the video cassette recorder VCR by operating the knob assembly Ka.

In addition, the front circuit board Cb is mounted in the vertical direction on the rear surface of the front panel Fp, and a tact switch (not shown) which is operated by the operation of the knob assembly Ka on the front surface of the front circuit board Pf. Electronic components such as switches or light emitting diodes are mounted to form electronic circuits.

In the conventional knob assembly and indicator assembly structure of the electronic product, as shown in FIGS. 2A and 2B, a plurality of mounting holes 11 and display holes 12 are formed in the front of the front panel 10, respectively. Coupling pins 13 and 14 are respectively formed on the rear surface of the front panel 10 so as to be adjacent to the installation and display holes 11 and 12.

In addition, the mounting holes 11 of the front panel 10 are fitted in such a manner that the knobs 16 of the knob assembly 15 are exposed, and the knob assembly 15 is attached to the welding of the coupling pins 13. Are assembled by

In addition, a circuit board 17 is installed behind the front panel 10, and a plurality of light emitting diodes 18 are mounted on the front surface of the circuit board 17 by soldering.

On the other hand, the light emitted by the driving of the light emitting diodes 18 is reflected on the display holes 12 of the front panel 10 by using the indicator 19 as a medium, so that the user can execute the mode. You can visually check the status. Here, one end of the indicator 19 is positioned to be fitted into the display hole 12, and the indicator 19 is assembled by welding of the coupling pieces 14.

However, the knob assembly and the indicator assembly structure of the conventional electronics as described above, the assembly assembly is complicated because the knob assembly 15 and the indicator 19 are assembled by welding of the coupling pieces 13 and 14, respectively. There is a problem that it is cumbersome and the assembly of the product is significantly reduced. In particular, as the indicator 19 is made relatively small, it is very difficult to perform the welding process, and thermal deformation of the indicator 19 due to welding has frequently occurred.

The present invention has been made to solve the conventional problems as described above, the object of the present invention is to improve the assembly of the product by a simple configuration and structure in which the assembly of the indicator is performed together with the assembly of the knob assembly. The present invention provides a knob assembly and an indicator assembly structure of an electronic product.

1 is a perspective view showing an example of a general electronic product,

2A and 2B are a perspective view and a cross-sectional view showing an embodiment of a knob assembly and indicator assembly structure of a conventional electronic product;

3 is a perspective view showing a knob assembly and an indicator assembly structure of an electronic product according to the present invention;

4 is a rear view showing a knob assembly and an indicator assembly structure of an electronic product according to the present invention;

5 is a cross-sectional view taken along the line II of FIG. 4.

♣ Explanation of symbols for the main parts of the drawing ♣

20; Front panel 21; Mounting hole

22; Display hole 23; Guide boss

25; Circuit board 26; Tact switch

27; Light emitting diodes 30; Knob assembly

31; Knob 32; Pusher

33; Tension ribs 34; Support rib

36; Extension plate 37; Assembling Hole

38; Guide boss 40; Indicator

An object of the present invention for achieving the above object is an electronic product having a knob assembly for operating a tact switch of a circuit board, and an indicator for transmitting the light emitted by the driving of the light emitting diode to indicate the execution state of the mode. A front panel comprising: a guide boss having a plurality of installation holes and a display hole on a front surface thereof, and a plurality of coupling pins protruding from a rear surface thereof; Knobs having pushers are fitted in the mounting holes of the front panel so as to be exposed, and the knobs are formed to be integrally connected to the support ribs by tension ribs that are elastically deformable, and a plurality of knobs can be welded to the support ribs. A knob assembly having coupling holes of which are formed, an extension plate formed on one side of the support rib, and an assembly hole formed on the front side of the extension plate so as to be located behind the display hole; The display unit is formed on the front surface of the body portion so as to be fitted into the display hole of the front panel, and the knob assembly and the indicator of the electronic product comprising an indicator formed on the rear surface of the body portion and the fixing portion inserted into the assembly hole of the extension plate is coaxial with the display portion. It is in an assembly structure.

Hereinafter, one preferred embodiment of a knob assembly and an indicator assembly structure of an electronic product according to the present invention will be described in detail with reference to the accompanying drawings.

3 to 5 are views for explaining the knob assembly and indicator assembly structure of the electronic product according to the present invention.

As shown in FIG. 3, a plurality of mounting holes 21 and guide bosses 23 having display holes 22 are formed in the substantially horizontal direction on the front surface of the front panel 20, respectively. A plurality of coupling pins 24 protrude from the rear surface of the panel 20.

At this time, the display holes 22 of the guide bosses 23 are formed to be inclined at a predetermined angle from the rear of the front panel 20 toward the front. In other words, the diameter of the rear end of the display hole 22 is larger than that of the front end. On the other hand, although the display holes 22 of the guide bosses 23 are formed to have the same height, the display holes 22 may be formed by appropriately disposing their positions in the vertical direction or the diagonal direction.

In addition, the circuit board 25 is installed in the vertical direction at the rear of the front panel 20, and a plurality of tact switches 26 are mounted at the rear of the installation holes 21 on the front of the circuit board 25. The light emitting diodes 27 are mounted by soldering so as to be positioned behind the display holes 22 on one side of the front surface of the circuit board 25.

On the other hand, the mounting holes 21 of the front panel 20 are installed so that the knobs 31 of the knob assembly 30 are fitted to each other and exposed to the front, and the knobs 31 have a tact switch 26 on the rear thereof. It has a pusher (32) to operate.

The knobs 31 of the knob assembly 30 are formed to be integrally connected to the support ribs 34 by tension ribs 33 that are elastically deformable.

That is, the knob assembly 30 is a plurality of knobs 31 are connected to the support ribs 34 to be manufactured in one combination, the knob assembly 30 is made of a synthetic resin material by molding the knobs 31 It can be produced in various shapes such as round, oval and other shapes.

In addition, a plurality of coupling holes 35 are formed in the support rib 34 of the knob assembly 30, and coupling pins 24 of the front panel 20 are formed in the coupling holes 35 of the support rib 34. It is fitted to pass. The ends of the coupling pins 24 are welded, ie, melted, so that the front panel 20 and the knob assembly 30 are assembled.

As shown in FIGS. 3 and 4, the knob assembly 30 has an extension plate 36 formed in a substantially rectangular shape on one side of the support rib 34, and a display hole 22 on the front surface of the extension plate 36. The assembly hole 37 is formed to be located at the rear of the. Guide bosses 38 for inducing light emitted by the driving of the light emitting diodes 27 to the rear of the assembly holes 37 are formed on the rear surface of the extension plate 36.

Here, although the extension plate 36 was formed to have a substantially rectangular shape, the extension plate 36 is appropriately changed in shape depending on the arrangement of the assembling holes 37 formed corresponding to the display holes 22. It is possible. In addition, it is easily understood by those skilled in the art that the extension plate 36 can be welded with the coupling pins 24 of the front panel 20 as described above.

On the other hand, the indicator 40 is positioned and mounted between the display hole 22 of the front panel 20 and the assembly hole 37 of the extension plate 36, and the indicator 40 is formed by the body portion 41 of the body 41. A display portion 42 is inserted into the display hole 22 of the front panel 20 on the front surface, and a fixing portion 43 fitted into the assembly hole 37 of the extension plate 36 is formed on the rear surface of the body portion 41. Is formed to be coaxial with the display portion 42. Here, the indicator 40 is manufactured by shaping | molding synthetic resin which is excellent in light transmittance.

The knob assembly 30 described above shows that a plurality of knobs 31 are connected to the support ribs 34 to be manufactured in one combination, but the knob assembly 30 is one knob made of a single component. Even if it is easy to apply.

Referring to the assembly state of the knob assembly and the indicator assembly structure of the electronic product according to the present invention as described above are as follows.

As shown in FIGS. 4 and 5, in the state where the fixing part 43 of the indicator 40 is fixed to the assembly hole 37 formed in the extension plate 36 of the knob assembly 30, the knob assembly ( The knobs 31 of the 30 and the display portion 42 of the indicator 40 are respectively inserted into the installation holes 22 of the front panel 20 and the display holes 22 of the guide bosses 23, respectively.

At the same time, the coupling pins 24 of the front panel 20 are inserted through the coupling holes 35 of the support rib 34, and then the ends of the coupling pins 24 that pass through the coupling holes 35 are welded. In this case, the front panel 20 and the knob assembly 30 are firmly assembled.

In addition, as the front panel 20 and the knob assembly 30 are assembled by welding, the indicator 40 is positioned and mounted between the rear surface of the front panel 20 and the extension plate 36 of the knob assembly 30. .

That is, the display portion 42 of the indicator 40 is fitted into the display hole 22 of the guide bosses 23, and the fixing portion 43 is fitted into the assembly hole 37 of the extension plate 36. Since the 20 and the knob assembly 30 are assembled by welding, the body portion 41 of the indicator 40 is firmly mounted by the back of the guide bosses 23 and the support of the extension plate 36.

Therefore, the present invention is manufactured in a simple configuration and structure in which the indicator 40 is assembled together by the welding of the front panel 20 and the knob assembly 30, so that the assembly process is simple and easy, thereby remarkably assembling the product. Is improved. In particular, it is not necessary to weld the indicator 40, which is manufactured to be relatively small, and assembling defects are greatly reduced because thermal deformation is prevented.

When the user selects and operates one of the knobs 31 of the knob assembly 30, the pushers 32 of the knobs 31 are elastically deformed of the tension ribs 33 according to the manipulation of the knobs 31. Presses the tact switch 26 of the circuit board 25 to operate.

In addition, the light emitted by the driving of the light emitting diode 27 is transmitted using the indicator 40 as a medium, and the display unit 42 of the indicator 40 shines the light in the display hole 22 to execute the mode to the user. The status is visually displayed. At this time, the guide boss 38 of the extension plate 36 guides the light of the light emitting diode 27 so that light is transmitted more efficiently through the indicator 40.

On the other hand, the above-described embodiment is merely to describe one preferred embodiment of the present invention, the scope of application of the present invention is not limited to such, and can be changed appropriately within the scope of the same idea. For example, the shape and structure of each component specifically shown in the embodiment of the present invention can be modified.

As described above, according to the knob assembly and the indicator assembly structure of the electronic product according to the present invention, since the indicator is manufactured in a simple configuration and structure in which the indicator is assembled together by welding of the front panel and the knob assembly, the assembly process becomes simple and easy. In addition, assembling defects are greatly reduced such that the heat deformation of the indicator is prevented, thereby significantly improving the assemblability of the product.

Claims (2)

An electronic product comprising a knob assembly for operating a tact switch of a circuit board and an indicator for transmitting light emitted by driving a light emitting diode to indicate an execution state of a mode. A front panel 20 having a plurality of installation holes 21 and guide bosses 23 having a display hole 22 on the front surface, and a plurality of coupling pins 24 protruding from the rear surface; Knobs 31 having pushers 32 are fitted into the mounting holes 21 of the front panel 20 so as to be exposed. The knobs 31 are supported by tension ribs 33 which are elastically deformable. It is formed to be integrally connected to the rib 34, a plurality of coupling holes 35 are formed in the support rib 34 to enable the welding of the coupling pins 24, one side of the support rib 34 A knob assembly 30 having an extension plate 36 formed therein and an assembly hole 37 formed on the front surface of the extension plate 36 so as to be located behind the display hole 22; A display portion 42 is formed on the front surface of the body portion 41 so as to fit into the display hole 22 of the front panel 20, and an assembly hole of the extension plate 36 on the rear surface of the body portion 41. Knob assembly and indicator assembly structure of the electronics, characterized in that the fixing portion (43) fitted to the 37 is composed of an indicator (40) formed coaxially with the display portion (42). The guide boss (38) according to claim 1, wherein the knob assembly (30) guides the light emitted by the driving of the light emitting diodes (27) to the rear of the extension plate (36) to the rear of the assembly hole (37). Knob assembly and indicator assembly structure of the electronics, characterized in that the extension is formed.