KR200160907Y1 - Lamp fixing frame in projector - Google Patents

Abstract

The present invention relates to a lamp mounting mechanism in a light irradiation apparatus comprising: a first case provided with a plurality of guide members, a lamp moved to the first case side, guided by a guide member, and mounted on the first case; It includes a second case for pressing to support the first case side. Since the lamp mounting mechanism has a small number of parts, maintenance is easy, assembly is excellent, and lamp replacement is very simple. In addition, since the lamp cover surrounding the lamp is not used, the cooling efficiency of the lamp is high, and thus there is no damage to the components due to the generated heat of the lamp.

Description

Lamp fitting

The present invention relates to a light irradiation apparatus, and more particularly, to a lamp mounting mechanism for installing a lamp applied to the light irradiation apparatus in the light irradiation apparatus.

The light irradiation apparatus generally used is an apparatus which obtains the intended image by irradiating the light irradiated from the light source provided in the inside to the outside through a lens.

Fig. 1 is an exploded perspective view of a lamp mounting mechanism showing a conventional lamp mounting mechanism provided in a light irradiation apparatus separated from a light irradiation apparatus.

As shown, the conventional lamp mounting mechanism is a lamp case 12 and the lamp case 12 in close contact with the edge portion of the front portion of the lamp 10, and the lamp 10 is elastic with respect to the lamp case 12 It consists of a lamp fixing spring 14 for supporting and a lamp cover 16 surrounding the lamp 10. The lamp 10 is elastically supported forward by the lamp fixing spring 14 in a state in which the lamp case 12 and the front surface are in close contact, and in this state, one end of the lamp cover 16 of the lamp case 12 Inserted into the inner surface and joined. One end of the lamp cover 16 is inserted to contact the inner surface of the lamp case 12, and at the same time includes a lamp 10 therein. In addition, the lamp fixing spring 14 has a shape in which the elastic member is bent in a V-shape, the insertion portion 18 is formed in the bent portion. The insertion part 18 of the lamp fixing spring 14 is inserted into and mounted in a groove (not shown) provided inside the lamp case 12. In addition, although not shown in the drawings, a conductor connected to the terminal of the lamp is included in the mounting means.

By the way, in using a light irradiation apparatus (not shown) equipped with a conventional lamp mounting mechanism configured as described above, the lamp filament is lost due to the design life of the lamp 10, external shock or overvoltage, so the lamp must be replaced. If you do. In order to solve this problem, conventionally, the entire lamp mounting mechanism had to be separated from the light irradiation apparatus. That is, after the entire lamp mounting mechanism is separated from the light irradiation apparatus, the conductor connected between the terminal of the lamp and the light irradiation apparatus is disassembled, and then the lamp cover 16 is separated from the lamp case 12, and then the lamp fixing spring (14) must be removed from the lamp case 12 before the damaged lamp can be replaced with a new lamp. The mounting of the lamps shall be in the reverse order of the above complicated order.

As described above, the conventional lamp mounting mechanism has a complicated structure with a large number of parts used. In addition, since the assembly of the lamp fixing spring 14 and the head case 12 is not very good, workability is poor when the lamp 10 is replaced. In addition, when the lamp 10 is overheated because each conductor wire (not shown) extending from each terminal (not shown) of the lamp 10 is located close to the lamp 10, the heat generated by the lamp 10 is generated. This may cause damage to the conductors. In addition, since the lamp cover 16 surrounds the lamp 10, heat generated from the lamp 10 may be discharged to the outside. In addition, since the number of parts to be coupled is large, there is a problem in that noise due to vibration generated during rotational movement of a cooling fan is relatively high.

The present invention has been made to solve the above problems, the object of the present invention is to provide a lamp mounting mechanism having a simple structure, good lamp replacement workability, low noise, and high cooling efficiency of the lamp.

1 is an exploded perspective view of a lamp mounting mechanism installed in a conventional light irradiation apparatus.

Figure 2 is a plan view of the lamp mounting mechanism according to an embodiment of the present invention.

3 is a front view showing a state in which a lamp is mounted on the first case of FIG.

Figure 4 is an exploded perspective view of the lamp mounting mechanism according to an embodiment of the present invention.

<Explanation of symbols for main parts of drawing>

10: lamp 12: lamp case

13: Holder part 14: Lamp fixing spring

16: Lamp cover 18: Insertion

20: first guide member 22: second guide member

24: First case 26: Second case

28: protrusion 30: home

32: 2nd terminal 34: 2nd terminal connection part

36: 1st terminal connection part 38: 1st pressure guide member

40: second pressure guide member 42: support wall

In order to achieve the above object, the present invention, the first case is provided with a plurality of guide members; A lamp which is moved to the first case and guided by the guide member and placed on the first case; And a second case for pressing and supporting the lamp against the first case. In addition, the outer surface of the first case is provided with a first terminal connecting portion connected to the terminal of the lamp side, the first guide member and the second guide member is provided inside, and the second terminal located at the rear end of the lamp The second terminal connecting portion in elastic contact is further included. In addition, a first pressure guide member and a second pressure guide member are provided on an inner surface of the second case at positions corresponding to the first and second guide members of the first case, respectively. The second terminal connecting portion is provided with a pair of elastic members mutually elastically supported on the opposite surface, the space is provided on the opposite surface to accommodate the second terminal, the second cylindrical terminal is inserted into the space portion Supported. Moreover, since the end part spreads outward, insertion of the said 2nd terminal is easy.

Hereinafter, the lamp mounting mechanism according to the present invention will be described in more detail with reference to the accompanying drawings.

2 is a plan view showing the configuration of the lamp fixing means according to an embodiment of the present invention.

As shown, the lamp fixing means according to the present embodiment is a first case 24, the first guide member 20 and the second guide member 22 is formed integrally with the first guide member 20, Guided by the second case 24, which is moved to the first case 24 and mounted on the first guide member 20, and the second case is supported by pressing the lamp 10 to the first case 24 side. (26). The lamp 10 is a conventional lamp, and protrudes 28 are formed by protruding a side surface of the edge of the lamp by a predetermined length. The first guide member 20 is installed at a right angle with respect to the first case 24 and has a partial arc shape so that the inside thereof is supported by contact with the edge portion of the circular lamp 10. In addition, a groove (30 in FIG. 4) is formed on the arc-shaped inner curved surface of the first guide member 20 to receive and guide the protrusion 28 of the lamp 10.

The second guide member 22 is provided at a position spaced apart from the first guide member 20 by a predetermined distance. The second guide member 22 has a partial arc shape on an inner surface thereof so as to support the holder portion 13 of the lamp 10. The second guide member 22 is positioned such that the outer circumferential surface of the lamp holder part 13 and the inner curved surface of the second guide member 22 are in contact with each other, so that the lamp 10 can be kept horizontal. In addition, in order to support the second terminal 32 of the lamp 10 positioned at the rear end of the lamp 10 on the side of the second guide member 22, the second terminal connecting portion 34 is formed in the first case ( 24). The second terminal connecting portion 34 has a pair of connecting members elastically supported on opposite surfaces, one end of which is opened to the outside, and a space portion is provided on the inner facing surface to accommodate the second terminal 32. Accordingly, the cylindrical second terminal 32 is easily inserted into the space portion through the one end portion and is elastically supported by being accommodated in the space portion. In addition, the first terminal connecting portion 36 is provided on the outer surface of the first case and is electrically connected to the side of the lamp 10.

On the other hand, the first pressure guide member 38 and the second pressure guide member 40 are positioned on the inner surface of the second case 26 at positions corresponding to the first guide member 20 and the second guide member 22, respectively. Is prepared. The inner surface of the first guide member 20 and the inner surface of the first pressure guide member 38 are spaced apart from each other, and the inner surfaces of the second guide member 22 and the second pressure guide member 40 are also spaced apart from each other. We are facing each other. The first pressing guide member 38 has a partial arc shape and the inner curved surface contacts the protrusion 28 of the lamp 10. The inner curved surface of the partial arc shape is formed with a groove 30 having the same shape as the first guide member 20 to accommodate the protrusion 28 of the lamp 10 and the lamp 10 to the first guide member 20. Support to the side. The arc of the first pressing guide member 38 is shorter than the length of the arc of the first guide member 20. When the lamp 10 approaches the first case 24 for mounting the lamp 10, the protrusion 30 of the lamp 10 is formed on the inner surface of the first guide member 20. While being guided by and making contact with the inner inner curved surface of the first guide member 20 and being seated, the first pressing guide member 38 is protruded from the lamp 10 toward the first guide member 20 ( 28 is pressed to stably adhere the lamp 10 to the first guide member 20. At this time, since the protrusion 28 of the lamp 10 is accommodated in the groove 30 of the first pressure guide member 38, it is possible to maintain a stable mounting state.

Meanwhile, the second guide member 22 and the second pressure guide member 40 support the holder part 13 behind the lamp 10. Since the holder part 13 behind the lamp 10 in this embodiment has no separate protrusion, the inner surface of the second guide member 22 and the second pressure guide member 40 is not formed with a groove. However, the inner curved surfaces of the second guide member 22 and the second pressure guide member 40 have an appropriate shape according to the shape of the holder portion 13 behind the lamp 10. The holder portion 13 of the lamp 10 is inserted into the inner curved surface of the second guide member 22 provided on the inner surface of the first case 24, and then the second pressure guide formed on the second case 26. As the member 40 presses the holder portion 13 of the lamp 10 in the direction of the second guide member 22, the lamp 10 is installed in the first and second cases 24 and 26. On the other hand, the contact area between the second guide member 22 and the holder portion 13 of the lamp 10 is preferably larger than the contact area between the second pressure guide member 40 and the holder portion 13.

In addition, the second terminal connecting portion 34 for connecting the second terminal 32 of the lamp 10 to an external power source is composed of a pair of plate-like elastic members facing each other and elastically biased inwardly. Keep it. The pair of elastic members is fixed to the inner surface of the first case 24, one end is opened to the outside so that the second terminal 32 of the lamp 10 can be inserted. In addition, the space portion formed on the opposite surface of the elastic member is a generally cylindrical space portion formed by bending the portion where the second terminal 32 is located to the outside. Since the pair of elastic members are mutually elastically supported inwardly, the pair of elastic members are inserted into the second terminal 32 at the moment when the second terminal 32 is inserted into the inlet of the second terminal connecting portion 34. When the space between the second terminal 32 reaches the space portion of the second terminal connecting portion 34, the mutual spacing of the elastic members is narrowed again, and the second terminal 32 is elastically supported. Can be.

Preferably, the first case further includes a support wall 42 to reinforce the rigidity of the case.

3 is a front view illustrating a shape in which the lamp 10 is mounted on the first case 24.

As shown, the protruding portion 28 of the lamp 10 is inserted into the groove 30 of the first guide member 20, and the holder portion 13 of the lamp 10 is formed by the second guide member 22. It can be seen that the second terminal 32 of the lamp 10 is fitted to the second terminal connecting portion 34.

4 shows the lamp mounting mechanism as an exploded perspective view.

Referring to the drawings, the lamp mounting mechanism of the present embodiment can be seen that the support wall 42 is formed in the first case (24). The first guide member 20, the second guide member 22, and the second terminal connecting portion 34 are sequentially provided on the inner surface of the first case 24. The lamp 10 is inserted into the inner curved surface of the first guide member 20, the inner curved surface of the second guide member 22 and the inner space of the second terminal connecting portion 34, and then the second case ( The mounting of the lamp 10 is accomplished by the proximity of 26 to the first case 24. That is, the first pressure guide member 38 and the second pressure guide member 40 provided on the inner surface of the second case 26 are formed on the inner curved surfaces of the guide members 20 and 22 of the first case 24. The lamp 10 is seated by pressing the lamp 10 in contact in the first case direction 24.

Among the lamp mounting mechanisms configured as described above, the first case 24 is installed inside the light irradiation apparatus, and the inner surface thereof is installed to face the outside, and the second case 26 is installed in the first case 24. It is preferably installed so as to face the outer surface of the second case 26 to be part of the outer surface of the light irradiation apparatus. That is, in the light irradiation apparatus, the outer surface of the second case 26 is configured to serve as a door for maintaining the lamp. Therefore, when the lamp 10 is replaced, the second case 26 is detached from the light irradiation apparatus, the lamp is removed from the first case 24 and taken out, and a new lamp is taken and installed in the interior of the light irradiation apparatus. After inserting the first guide member 20, the second guide member 22 and the second terminal connecting portion 34 of the case 24, the second case 26 is assembled to the light irradiation apparatus again. The exchange is complete.

As described above, the lamp mounting mechanism of the present invention is very simple in structure. That is, the number of parts used is very advantageous for maintenance, excellent assembly and lamp replacement is very simple. In addition, since the cover covering the lamp is not used, the cooling efficiency of the lamp is high, and thus there is no damage to the lamp mounting mechanism due to the generated heat of the lamp.

The present invention has been described in detail through specific embodiments, but the present invention is not limited to the above embodiments, and various modifications may be made by those skilled in the art within the scope of the technical idea of the present invention. It is possible.

Claims (6)

A first case having a plurality of guide members; A lamp which is moved to the first case and guided by a guide member and placed on the first case; And a second case for pressing and supporting the lamp against the first case, the first case having a first terminal connecting portion connected to a terminal of a lamp side on an outer surface thereof, and having a first guide member and an inside of the first guide member. And a second terminal connecting portion having a two guide member and elastically contacting the second terminal positioned at the rear end of the lamp. The lamp mounting mechanism of claim 1, further comprising a first pressure guide member and a second pressure guide member on the inner surface of the second case so as to correspond to the first and second guide members of the first case, respectively. . The method of claim 1, wherein the second terminal connecting portion is a pair of elastic members are mutually elastically supported on the opposite surface, the end is a shape that is gradually spaced apart to the outside, the inner facing surface space to accommodate the second terminal The lamp mounting mechanism of claim 1, further comprising: a cylindrical second terminal inserted into the space part to be elastically supported. The lamp of claim 2, wherein the first guide member and the first pressure guide member support the lamp by contacting the protrusion of the lamp, and a groove is formed on an inner surface of the lamp to guide the protrusion of the lamp. A lamp mounting mechanism having a shape of a partial arc so as to be in surface contact with a surface thereof, wherein a contact surface between the first guide member and the edge of the lamp is larger than a contact surface between the first pressure guide member and the edge of the lamp. The method of claim 2, wherein the second guide member and the second pressure guide member supports the holder portion behind the lamp, wherein the contact area between the second guide member and the holder portion is the contact area between the second pressure guide member and the holder portion. Lamp mounting mechanism, characterized in that larger. The lamp mounting mechanism of claim 1, wherein the first case further comprises a support wall.