CN1766728B - Air collecting plate of projection bulb - Google Patents

Abstract

A projection lamp air collecting plate is used to enhance the cooling effect of the projection lamp in the reflector lampshade. The air collecting plate has an opening. The air collecting plate is arranged on a plane passing through the axis of the projection lampshade. The opening allows the cooling air to be concentrated on the wick, welding point, and high temperature points of the terminal of the projection lampshade. The air collecting plate can be fixed on the reflector lampshade, the projection lampshade, or a dedicated air collecting plate fixing seat to guide the cooling air to flow to the opening so that it flows through the high temperature points of the projection lampshade.

Description

Projection bulb wind collecting board

technical field

The invention relates to a cooling device, in particular to a projection bulb wind collecting plate.

Background technique

The cooling method of the known projection bulb of a projector generally adopts an air supply device to blow the cooling air into the reflector lampshade, and when it flows through high temperature points such as the wick, the generated heat is taken away and discharged outside the body. As shown in FIG. 1 , FIG. 1 is an enlarged schematic diagram of a projection bulb, and the high temperature points on the projection bulb 500 are the wick 510 , the welding point 520 , and the terminal 530 . When cooling the projection bulb 500 with a known cooling method, if the reflector lampshade adopts a relatively shallow reflector lampshade, the cooling air will directly hit the wick 510, and the welding point 520 and the terminal 530 are not within the range where the cooling air directly flows through, so welding It is difficult to obtain sufficient cooling effect at the point 520 and the terminal 530 . If the reflector lampshade adopts a deep reflector lampshade, the bottom of the reflector lampshade will generate air backflow, and the air after absorbing heat is not easy to exchange with cold air, resulting in poor cooling effect of the wick 510, and the welding point 520 and the terminal 530 are reversed. Easy to get cooled. As mentioned above, the cooling of each part of the projection bulb is not uniform, or the cooling is not performed according to the different temperature requirements of each part of the projection bulb, which affects the performance of the projection bulb and shortens the life of the projection bulb. To enhance the cooling effect of a projection bulb with a higher power, it is necessary to increase the speed of the air supply device, or use a larger air supply device to achieve the cooling effect. But using a larger blower adds bulk, and when the speed of the blower is increased, it makes an unbearable noise.

Contents of the invention

Therefore, an object of the present invention is to provide a projection bulb air collection plate, which will guide the cooling air blown into the reflector lamp cover from the air supply device arranged outside it to the high temperature point of the projection bulb, so as to effectively The use of cooling air enhances the cooling effect, and due to the effective use of air flow, the noise of the system can also be reduced.

In order to achieve the above object, the present invention provides a projection light bulb wind collecting plate, which is used to enhance the cooling effect of a projection light bulb in a reflector lampshade, at least comprising: a wind collecting plate, which is a thin flat plate, located on In the reflector lampshade, it is located on a plane passing through the axis of the projection bulb; and an opening is located on the air collecting plate to accommodate the projection bulb, wherein the air supply device is arranged on the collecting plate. Cooling air is blown into the wind collecting plate from the outside of the wind plate, and the air collecting plate installed in the reflector lampshade is used to make most of the cooling air blown into the reflector lampshade flow from one side of the wind collecting plate to the opening part, and flows through the opening, and the heat at the position accommodated by the opening is led out of the reflector lampshade from the other side of the wind collecting plate.

Furthermore, the projection bulb wind collecting plate of the present invention has an opening. The air collecting plate is a thin flat plate, and the center line of the air collecting plate coincides with the axis of the projection bulb. Seen from the front of the reflector lampshade, the included angle between the air collecting plate and the cooling air blowing direction forms an angle. The opening is located on the wind collecting plate and accommodates the wick of the projection bulb, the welding point, the high temperature point of the terminal, and the like. The air collecting plate can be fixed on the reflector lampshade, the projection bulb, or the special air collecting plate fixing seat to guide the cooling air to flow concentratedly to the high temperature point of the projection bulb.

In order to make the above-mentioned and other purposes, features, and advantages of the present invention more obvious and understandable, a preferred embodiment is specifically cited below, and in conjunction with the accompanying drawings, the detailed description is as follows:

Description of drawings:

Figure 1 is an enlarged schematic diagram of the projection bulb;

Fig. 2 is a schematic side view of a projection lamp assembly provided with a wind collecting plate according to a preferred embodiment of the present invention;

Fig. 3 is a schematic top view of the cooling air flow of the projection lamp assembly of Fig. 2;

Fig. 4 is a schematic diagram of the projection lamp assembly of Fig. 2 viewed from the front of the reflector lampshade;

Fig. 5 is a schematic side view of a projection lamp assembly provided with a wind collecting plate according to another preferred embodiment of the present invention;

Fig. 6A is a schematic side view of a fixing method of the present invention to fix the wind collecting plate on the projection bulb;

Fig. 6B is a schematic side view of another fixing method of the present invention for fixing the wind collecting plate on the reflector lampshade; and

Fig. 6C is a schematic side view of another fixing method of the present invention for fixing the wind collecting plate on the fixing seat of the wind collecting plate.

Description of main component symbols:

100 wind collecting board

110 opening

500 projection bulbs

510 wick

520 welding points

530 terminal

700 Reflector Shade

710 wind collecting board fixing seat

800 air supply device

Detailed ways

The spirit of the present invention will be clearly described in detail below with reference to the accompanying drawings. As those of ordinary skill in the art understand the preferred embodiments of the present invention, they can certainly be changed and modified by the technology disclosed in the present invention without departing from it. spirit and scope of the invention.

As shown in FIG. 2 , FIG. 3 , and FIG. 4 , the projection bulb wind collecting plate 100 of the present invention has an opening 110 thereon. The centerline of the wind collecting plate 100 is coincident with the axis of the projection bulb 500. Viewed from the front of the reflector lampshade 700, the included angle between the wind collecting plate 100 and the direction in which the cooling air blows in forms an angle, and this angle is greater than 0 degrees and less than 180 degrees, and preferably 90 degrees with the cooling air blowing direction.

The opening 110 is located on the wind collecting plate 100 and accommodates the wick 510 of the projection bulb 500 , the welding point 520 , the high temperature point of the terminal 530 , and the like.

As shown in FIG. 3 , the cooling air blown into the reflector lampshade 700 is guided by the wind collecting plate 100, so most of the cooling air flows to the opening 110 and flows through the wick 510 of the projection bulb 500, the welding point 520, and the terminals 530. The high temperature point takes away the heat generated by the high temperature point. Due to the arrangement of the wind collecting plate 100 , most of the cooling air flows to the high temperature point, and the cooling air is effectively used to enhance the cooling effect of the projection bulb 500 .

From the top view of FIG. 3 , the wind collecting plate 100 is located on a plane passing through the axis of the projection bulb 500 , so the influence of the setting of the wind collecting plate 100 on the brightness of the light source can be reduced.

Various application implementations can be carried out within the scope of the technical idea of the present invention, for example, the shape of the wind collecting plate 100 is not limited to the shape shown in Figure 2, as shown in Figure 5, the wind collecting plate 100 is further extended to the reflector lampshade The bottom of 700 forces most of the cooling air to flow to the only opening 110, so that the cooling air can be used more effectively, or various shapes of openings 110 can be designed corresponding to the different temperature requirements of each part of the projection bulb. The fixing method of the wind collecting plate 100, as shown in Figure 6A, Figure 6B, and Figure 6C, the wind collecting plate 100 can be fixed on the projection bulb 500, or on the reflector lampshade 700, or the wind collecting plate 100 can be fixed Installed outside the projection bulb 500 and the reflector lampshade 700 , on the dedicated wind collecting plate fixing seat 710 . The wind collecting plate 100 can be made of various high temperature resistant materials, and if transparent materials are used, the influence on the brightness of the light source can be reduced. Such application implementations should also be included in the scope of the claims of the present invention.

As can be seen from the preferred embodiments of the present invention described above, application of the present invention has the following advantages:

1. Use the air collecting plate to guide the cooling air to the opening, and the opening covers the wick of the projection bulb, the welding point, and the high temperature point of the terminal to take away the heat. Because most of the cooling air flows to the high temperature point, it can be effectively Use the cooling air to enhance the cooling effect of the projection lamp.

2. The wind collecting plate is a thin flat plate, and it is located on the plane passing through the axis of the projection bulb, so it has little effect on the brightness of the light source.

3. The cooling effect can be enhanced without increasing the volume or increasing the speed of the air supply device.

Although the present invention has been disclosed above with a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can certainly make various changes without departing from the spirit and scope of the present invention. and modification, therefore, the scope of protection of the present invention should be defined by the scope of the claims.

Claims (10)

1. A projection bulb wind collecting plate, used to enhance the cooling effect of a projection bulb in a reflector lampshade, at least comprising: a wind collecting plate, the wind collecting plate is a thin flat plate, set in the reflector lampshade, and located on a plane passing through the axis of the projection bulb; and an opening, the opening is located on the wind collecting plate and accommodates the projection bulb, The air supply device is arranged outside the wind collecting plate to blow cooling air into the air collecting plate, and the air collecting plate installed in the reflector lampshade is used to make most of the cooling air blown into the reflector lampshade flow from the One side of the wind collecting plate flows toward the opening and passes through the opening, and the heat at the position contained in the opening is led out of the reflector lampshade from the other side of the wind collecting plate. 2. The air collecting plate for projection light bulbs according to claim 1, characterized in that: viewed from the front of the reflector lampshade, the included angle between the air collecting plate and the direction in which the cooling air blows in forms an angle, and the angle is between greater than 0 degrees and less than 180 degrees. 3 . The projection bulb wind collecting plate according to claim 1 , wherein the projection bulb has at least one high temperature point, and the opening part covers the high temperature point. 4 . 4. The wind collecting plate of the projection light bulb as claimed in claim 1, wherein the wind collecting plate is fixed on the projection light bulb. 5. The wind collecting plate of the projection light bulb as claimed in claim 1, wherein the wind collecting plate is fixed on the reflector lampshade. 6. The projection light bulb wind collecting plate according to claim 1, characterized in that: the projection light bulb wind collecting plate also includes a wind collecting plate fixing seat for fixing the wind collecting plate, and the wind collecting plate fixing seat is located on The projector bulb is outside the reflector lampshade. 7. The wind collecting plate of the projection light bulb as claimed in claim 1, wherein the wind collecting plate comprises a transparent material. 8. The wind collecting plate of the projection light bulb as claimed in claim 1, wherein the wind collecting plate is made of a metal material. 9. The wind collecting board of the projection light bulb as claimed in claim 1, wherein the wind collecting board is made of a non-metallic material. 10. The wind collecting plate of the projection light bulb as claimed in claim 1, wherein the wind collecting plate extends to the bottom of the reflector lampshade.

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