TWI412061B - Lighting module - Google Patents

Abstract

A lighting module including a light source assembly and a guiding structure is provided. The guiding structure includes a base, a first fin and a second fin. The first fin and the second fin are connected to the base. The first fin has a first angle with respect to the base, and the first angle is smaller than a second angle. The second angle is an angle between a line and the base. The line connects a part connected to the first fin and the base and a part connected to a first conductive portion and a first foil of the light source assembly. The second fin has a third angle with respect to the base, and the third angle is smaller than or equal to a fourth angle and is larger than or equal to a fifth angle. The fourth angle is an angle between a line and the base. The line connects a part connected to the second fin and the base and the center of the first foil. The fifth angle is an angle between a line and the base. The line connects a part connected to the second fin and the base and a part connected to a close end of an arc portion and a connecting member of the light source assembly.

Description

Lighting module

The invention relates to a lighting module, and in particular to a lighting module applied to a projector.

Since lighting equipment can provide a lot of convenience, the application of lighting equipment is quite common. In addition, the illumination device can be, for example, an electronic device that can be disposed in a notebook computer or a projector as a light source of the electronic device.

The following is further explained by arranging the lighting device in the projector. Generally, the lighting equipment disposed in the projector uses a high pressure mercury lamp. In order to provide stable performance, the various components in the high pressure mercury lamp have a suitable operating temperature range to facilitate halogen circulation in the gas discharge portion of the high pressure mercury lamp. For example, the operating temperature range of the solder joint, the front foil and the rear foil of the high pressure mercury lamp is less than 350 ° C, and the operating temperature range of the gas discharge portion is in the range of 870 ° C to 930 ° C.

However, the temperature of the various components of the high pressure mercury lamp after a period of operation is often not within the proper operating temperature range. Therefore, it is one of the subjects of the related art to provide a method for effectively maintaining the various components of the lighting device in a suitable operating temperature range.

The present invention relates to a lighting module that is configured such that the temperature of each component in the lighting module is operable within a suitable temperature range to maintain luminous efficacy.

According to the present invention, a lighting module is provided, including a light source assembly and a flow guiding structure. The light source assembly includes a lamp cover, a main body, a first foil, a second foil, a first conductive portion, a second conductive portion, a third conductive portion, and a fourth conductive portion. The lampshade has an arcuate member and a connecting member, a closed end of the arcuate member being coupled to the connecting member, the open end of the arcuate member having an opening. The main body is disposed in the lamp cover and has a gas discharge portion. The first foil and the second foil are disposed in the body. The first portion of the first conductive portion, the second conductive portion, the third conductive portion, and the fourth conductive portion are disposed in the body. The first conductive portion, the first foil and the second conductive portion are sequentially connected from the opening toward the connecting member such that one of the second conductive portions is located in the gas discharge portion. The fourth conductive portion, the second foil and the third conductive portion are sequentially connected from the connecting member in the direction of the opening such that one of the third conductive portions is located in the gas discharge portion. The portion of the second conductive portion and the portion of the third conductive portion are spaced apart by a distance. The flow guiding structure is adjacent to the open end of the arc and includes a base, a first fin and a second fin. The base has two through holes. The first fin is connected to the base, and the connection between the first fin and the base is between the two through holes. The first fin has a first angle with respect to the base, the first angle is less than the second angle, and the second angle is the junction of the first fin and the base, and the junction of the first conductive portion and the first foil The angle of the wire relative to the base. The second fin is connected to the base, and the connection between the second fin and the base is between the two through holes. The second fin has a third angle relative to the base. The third angle is less than or equal to the fourth angle and greater than or equal to the fifth angle. The fourth angle is the junction of the second fin and the base, and the angle of the line connecting the points in the first foil with respect to the base, the fifth angle is the connection between the second fin and the base, and the arc The line connecting the closed end and the connecting member is at an angle relative to the base.

In order to better understand the above and other aspects of the present invention, the preferred embodiments are described below, and in conjunction with the drawings, the detailed description is as follows:

First embodiment

Please refer to FIG. 1 , FIG. 2A and FIG. 2B . FIG. 1 is a schematic diagram of a lighting module according to a first embodiment of the present invention, and FIG. 2A is a first angle and a second angle in FIG. 1 . A schematic diagram of the lighting module, and FIG. 2B is a schematic diagram of the lighting module of the third to sixth angles in FIG. The lighting module includes a light source assembly 100 (described below) and a flow directing structure 120.

The light source assembly includes a lamp cover 111, a main body 113, a first foil 115f1, a second foil 115f2, a first conductive portion 117c1, a second conductive portion 117c2, a third conductive portion 117c3, and a fourth conductive portion 117c4.

The lamp cover 111 has an arc member 111a and a connecting member 111b. The arc 111a has a closed end 111a1 and an open end 111a2. The closed end 111a1 of the arc 111a is coupled to the connector 111b, and the open end 111a2 of the arc 111a has an opening 111a3.

The main body 113 is disposed in the globe 111 and has a gas discharge portion 113a. The first foil 115f1 and the second foil 115f2 are disposed in the main body 113. The first portion of the first conductive portion 117c1, the second conductive portion 117c2, the third conductive portion 117c3, and the fourth conductive portion 117c4 are disposed in the body 113. In this embodiment, the first conductive portion 117c1, the first foil 115f1, and the second conductive portion 117c2 are sequentially connected from the opening 111a3 to the positive x-axis direction of the connecting member 111b, so that one portion of the second conductive portion 117c2 is located in the gas. Inside the discharge unit 113a. The fourth conductive portion 117c4, the second foil 115f2, and the third conductive portion 117c3 are sequentially connected from the connecting member 111b to the negative x-axis direction of the opening 111a3 such that one portion of the third conductive portion 117c3 is located in the gas discharge portion 113a. The portion of the second conductive portion 117c2 located in the gas discharge portion 113a and the portion of the third conductive portion 117c3 are spaced apart by a distance.

The flow guiding structure 120 is adjacent to the open end 111a2 of the arc 111a and includes a base 121, a first fin 123a1 and a second fin 123a2. The base 121 has two through holes 121h1 and 121h2. The first fin 123a1 and the second fin 123a2 are connected to the base 121. The connection between the first fin 123a1 and the base 121 is located between the two through holes 12h1 and 121h2, and the connection between the second fin 123a2 and the base 121 is located between the two through holes 121h1 and 121h2.

As shown in FIGS. 1 and 2A, the first fin 123a1 has a first angle θ1 with respect to the base 121. In this embodiment, the first angle θ1 is smaller than the second angle θ2, and the second angle θ2 is the junction of the first fin 123a1 and the base 121, and the junction of the first conductive portion 117c1 and the first foil 115f1. The angle of the wire R1 relative to the base 121.

As shown in FIGS. 1 and 2B, the second fin 123a2 has a third angle θ3 with respect to the base 121. In the embodiment, the third angle θ3 is less than or equal to the fourth angle θ4 and greater than or equal to the fifth angle θ5. The fourth angle θ4 is the junction of the second fin 123a2 and the base 121, and the angle of the line R2 of the point in the first foil 115f1 with respect to the base 121. The fifth angle θ5 is the angle between the second fin 123a2 and the base 121, and the angle of the line R3 at the junction of the closed end 111a1 of the arc 111a and the connecting member 111b with respect to the base 121.

In this way, when a fan (not shown) is coupled to the flow guiding structure 120, the flow system generated by the fan passes through the through holes 121h1 and 121h2 to pass the first fin 123a1 of the flow guiding structure 120 and The second fin 123a2 is guided to the light source assembly.

The light source assembly 100 of the present embodiment is further described below. In general, the temperature of the various components of the light source assembly 100 is operated in a particular temperature range to facilitate halogen circulation in the gas discharge portion 113a. Therefore, in the embodiment, when the light source assembly 100 is applied for a period of time and no cooling is performed, the temperature of the gas discharge portion 113a is greater than a preset temperature range as an example.

As shown in FIGS. 1 and 2B, in order to allow the temperature of the gas discharge portion 113a to be within a predetermined temperature range, the third angle θ3 of the present embodiment is greater than or equal to the sixth angle θ6, and the sixth angle θ6. It is the junction of the second fin 123a2 and the base 121, and the angle of the line R4 at the intersection of the third conductive portion 117c3 and the gas discharge portion 113a with respect to the base 121. In this way, the air passage formed by the second fin 123a2 and the base 121 can effectively reduce the temperature of the gas discharge portion 113a through the fluid passing through the through hole 121h2, so that the temperature of the gas discharge portion 113a can be preset. Within the temperature range.

Please refer to FIG. 1 and FIG. 2C , and FIG. 2C is a schematic diagram of the lighting module of the seventh angle and the eighth angle in FIG. 1 . The first portion of the first conductive portion 117c1 is located within the body 113 and the second portion is located outside of the body 113. The second portion of the first conductive portion 117c1 located outside the body 113 has a solder joint Tmp. In this embodiment, the flow guiding structure 120 further includes a third fin 123a3 connected to the base 121 and the first fin 123a1 is disposed between the second fin 123a2 and the third fin 123a3. The third fin 123a3 has a seventh angle θ7 with respect to the base 121. The seventh angle θ7 is greater than the eighth angle θ8, and the eighth angle θ8 is the angle of the line R5 of the connection between the third fin 123a3 and the base 121 to the solder joint Tmp with respect to the base 121. In this way, the air passage formed by the arrangement of the first fins 123a1 and the third fins 123a3 can effectively maintain the temperature of the respective components located in the main body 113 through the fluid passing through the through holes 121h1.

In addition, assuming that the length of the base 121 adjacent to the open end 111a2 of the arc 111a to the junction of the first fin 123a1 and the base 121 is denoted by L1, and the total length of the base 121 is denoted by Lt, the length L1 is greater than Or equal to 60% of the total length Lt, that is, L1 ≧ 0.6Lt.

Please refer to FIG. 3A and FIG. 3B . FIG. 3A is a perspective view of the flow guiding structure in FIG. 1 , and FIG. 3B is a bottom view of the second fin. The second fin 123a2 has a first end e1, a second end e2, a third end e3, two first side walls s11 and s12, and two second side walls s21 and s22. The first end e1 is connected to the base 121, and the second end e2 is between the first end e1 and the third end e3. The third end e3 faces the gas discharge portion 113a. The first side walls s11 and s12 are located between the first end e1 and the second end e2 and facing the base 121, and the second side walls s21 and s22 are located between the second end e2 and the third end e3 and facing the base 121. The absolute values of the slopes of the first side walls s11 and s12 are smaller than the absolute values of the slopes of the second side walls s21 and s22. That is to say, the second fin 123a2 of the present embodiment is tapered in two stages due to having two different slopes. In general, if the fins have a slope that tapers, the flow field through the fins tends to diverge. In contrast, the flow field through the second fin 123a2 forms a vortex due to the two-stage taper of the second fin 123a2. In other words, among the fluid passing through the second fins 123a2, the flow systems closer to the first side walls s11 and s12 and the second side walls s21 and s22 of the second fins 123a2 are blocked and decelerated, and eddy currents are formed. As a result, the flow system through the second fins 122a2 does not easily diverge, but can reach a predetermined position to maintain the temperature of each element in the body 113 within a preset range.

Second embodiment

Please refer to FIG. 4, which is a schematic diagram of a light source assembly according to a second embodiment of the present invention. In this embodiment, when the light source assembly 200 is applied for a period of time and no cooling is performed, the temperature of the gas discharge portion 113a is lower than a preset temperature range, and the temperature of the second foil 115f2 is higher than a preset temperature range. As an example. Compared with the light source assembly 100 of the first embodiment, the angular range of the third angle θ3' of the present embodiment is different from the angular range of the third angle θ3 of the first embodiment, and the other identical components are the same. The labels are labeled and the description is not repeated.

As shown in FIG. 4, in order to allow the temperature of the gas discharge portion 113a and the second foil 115f2 to be within a predetermined temperature range, the third angle θ3' of the embodiment is greater than or equal to the fifth angle θ5, and Less than or equal to the sixth angle θ6. The fifth angle θ5 is the angle between the second fin 123a2' and the base 121, and the angle of the line R3 at the junction of the closed end 111a1 of the arc 111a and the connecting member 111b with respect to the base 121. The sixth angle θ6 is the angle between the second fin 123a2' and the base 121, and the angle of the line R4 at the intersection of the third conductive portion 117c3 and the gas discharge portion 113a with respect to the base 121. In this way, the air passage formed by the second fin 123a2' and the base 121 allows the fluid passing through the through hole 121h2 to effectively lower the temperature of the second foil 115f2 to a preset temperature range without gas The discharge portion 113a performs excessive temperature drop.

The illumination module disclosed in the above embodiments of the present invention determines the arrangement positions of the first fins and the second fins of the flow guiding structure according to the temperature at which the gas discharge portion is applied for a period of time without any cooling. In this way, the flow system through the two through holes of the flow guiding structure can effectively maintain the various components of the lighting device in a suitable operating temperature range to provide stable luminous efficacy.

In conclusion, the present invention has been disclosed in the above preferred embodiments, and is not intended to limit the present invention. A person skilled in the art can make various changes and modifications without departing from the spirit and scope of the invention. Therefore, the scope of the invention is defined by the scope of the appended claims.

100, 200. . . Light source component

111. . . lampshade

111a. . . Arc

111a1. . . Closed end

111a2. . . Open end

111a3. . . Opening

111b. . . Connector

113. . . main body

113a. . . Gas discharge department

115f1. . . First foil

115f2. . . Second foil

117c1. . . First conductive part

117c2. . . Second conductive portion

117c3. . . Third conductive part

117c4. . . Fourth conductive part

120. . . Diversion structure

121. . . Base

121h1, 121h2. . . Through hole

123a1. . . First fin

123a2, 123a2’. . . Second fin

123a3. . . Third fin

E1. . . First end

E2. . . Second end

E3. . . Third end

L1. . . length

Lt. . . Total length

R1, R2, R3, R4, R5. . . Connection

S11, s12. . . First side wall

S21, s22. . . Second side wall

Tmp. . . Solder joint

Θ1. . . First angle

Θ2. . . Second angle

Θ3, θ3’. . . Third angle

Θ4. . . Fourth angle

Θ5. . . Fifth angle

Θ6. . . Sixth angle

Θ7. . . Seventh angle

Θ8. . . Eighth angle

FIG. 1 is a schematic view of a lighting module according to a first embodiment of the present invention.

FIG. 2A is a schematic diagram showing the first angle and the second angle of the illumination module in FIG. 1 .

FIG. 2B is a schematic diagram showing the third to sixth angles of the illumination module in FIG. 1 .

FIG. 2C is a schematic diagram showing the lighting module of the seventh angle and the eighth angle in FIG. 1 .

Fig. 3A is a perspective view showing the flow guiding structure in Fig. 1.

FIG. 3B illustrates a bottom view of the second fin.

4 is a schematic view of a light source assembly in accordance with a second embodiment of the present invention.

100. . . Light source component

111a. . . Arc

111a1. . . Closed end

111b. . . Connector

113a. . . Gas discharge department

115f1. . . First foil

117c3. . . Third conductive part

120. . . Diversion structure

121. . . Base

123a2. . . Second fin

R2, R3, R4. . . Connection

Θ3. . . Third angle

Θ4. . . Fourth angle

Θ5. . . Fifth angle

Θ6. . . Sixth angle

Claims (6)

A lighting module includes: a light source assembly, comprising: a lamp cover having an arc member and a connecting member, a closed end of the arc member being coupled to the connecting member, an open end of the arc member having An opening is disposed in the lamp cover and has a gas discharge portion; a first foil and a second foil are disposed in the body; and a first conductive portion, a second conductive portion, and a third portion a conductive portion and a fourth conductive portion, wherein the first portion of the first conductive portion, the second conductive portion, the third conductive portion, and the fourth conductive portion are disposed in the body, the first conductive portion, the first portion a foil and the second conductive portion are sequentially connected from the opening to the connecting member, such that a portion of the second conductive portion is located in the gas discharge portion, the fourth conductive portion, the second foil, and the first portion The three conductive portions are sequentially connected from the connecting member to the opening, such that a portion of the third conductive portion is located in the gas discharge portion, the portion of the second conductive portion and the portion of the third conductive portion Parts are separated by a spacing; and a diversion structure is set The open end of the arc of the light source assembly, and the base is adjacent to the opening of the light source assembly, and the flow guiding structure comprises: a base having a second through hole; a first fin connected to the base, and a connection between the first fin and the base is located between the two through holes, the first fin having a relative to the base a first angle, the first angle is less than a second angle, and the second angle is a junction of the first fin and the base, and An angle between the connection of the first conductive portion and the first foil relative to the base; and a second fin connected to the base, and the connection between the second fin and the base is located at the Between the two through holes, the second fin has a third angle relative to the base, the third angle is less than or equal to a fourth angle, and is greater than or equal to a fifth angle, the fourth angle is a junction of the second fin and the base, and an angle of a line connecting the points in the first foil with respect to the base, the fifth angle being a junction of the second fin and the base, and the The line connecting the closed end of the arc to the connector is at an angle relative to the base. The lighting module of claim 1, wherein the third angle is greater than or equal to a sixth angle, the sixth angle is a connection between the second fin and the base, and the first The line at the intersection of the three conductive portions and the gas discharge portion is at an angle relative to the base. The lighting module of claim 1, wherein the third angle is less than or equal to a sixth angle, the sixth angle is a connection between the second fin and the base, and the first The line at the intersection of the three conductive portions and the gas discharge portion is at an angle relative to the base. The lighting module of claim 1, wherein the second portion of the first conductive portion is located outside the body and has a soldering point, the guiding structure further comprising: a third fin. Connected to the base and the first fin is disposed between the second fin and the third fin, the third fin has a seventh angle relative to the base, the seventh angle is greater than one Eight angles, the eighth angle is a connection between the connection of the third fin and the base to the solder joint For the angle of the base. The lighting module of claim 1, wherein the second fin has a first end, a second end, a third end, two first side walls and two second side walls, the first end Connected to the base, the second end is between the first end and the third end, the third end is toward the gas discharge portion, and the first side walls are located at the first end and the second end And the second sidewall is located between the second end and the third end and faces the base, and the absolute value of the slope of the first sidewalls is smaller than the slope of the second sidewalls Absolute value. The lighting module of claim 1, wherein the length of the base adjacent to the open end of the arc to the junction of the first fin and the base is greater than or equal to the total length of the base. 60%.