TWI451036B - Light-emitting diode bulb - Google Patents

Description

Light-emitting diode bulb

The present invention relates to a light-emitting diode bulb, and more particularly to a light-emitting diode bulb having an omnidirectional light distribution pattern.

With the rapid development of science and technology and the rise of human environmental awareness, incandescent bulbs face the fate of being replaced due to shortcomings such as low luminous efficiency, high power consumption and short life. In recent years, Light Emitting Diode (LED) has advantages such as long life, low power consumption, fast reaction speed, impact resistance, weather resistance, small size, high luminous efficiency and light weight. The diode is one of the main sources of illumination for everyday applications.

Please refer to "Figure 1" for the light distribution pattern of the conventional incandescent bulb on the first plane, the second plane and the third plane. Among them, the center position Q in "1st picture" is the position of the conventional incandescent light bulb, and each concentric circle represents a contour line of different light intensity, and the radial line indicates the vertical axis (ie, 0° radial shape) The angle of the line). The first plane is a 0°-180° section of a conventional incandescent bulb, and the light distribution pattern of the first plane is the light distribution pattern of the solid line of “Fig. 1”. The second plane is a 45°-225° section of a conventional incandescent bulb, and the light distribution pattern of the second plane is the light distribution pattern of the center line of “Fig. 1”. The third plane is a 90°-270° section of a conventional incandescent bulb, and the light distribution pattern of the third plane is a dotted light distribution pattern of “Fig. 1”. It can be seen from the "Fig. 1" drawing that the incandescent bulb is an omnidirectional light source. However, due to structural factors such as packaging, the light-emitting diodes generally limit the light emitted by the light-emitting diodes to a certain range (the directivity of the light-emitting diodes is very high), and cannot completely replace the incandescent light bulbs.

In view of the above problems, the present invention provides a light-emitting diode bulb, thereby solving the problem that the light-emitting diode of the prior art cannot completely replace the incandescent light bulb.

According to an embodiment of the light-emitting diode bulb disclosed in the present invention, the LED bulb includes a circuit board assembly, a base, a first light-emitting diode light source module, and a second light-emitting diode light source. The module is a housing. The base includes a reflective surface, and the circuit board assembly includes a first surface and a second surface opposite to each other. The first light emitting diode light source module is disposed on the first surface, and the second light emitting diode light source module is disposed on the second surface. The housing engages the base. The first light emitting diode light source module is configured to emit a first light beam, the second light emitting diode light source module is configured to emit a second light beam, and the second light beam comprises a reflected light beam and a constant light beam. The first light beam passes through the housing to form a first light distribution pattern. The reflected light beam is reflected by the reflective surface and emerges from the housing to form a second light distribution pattern. The direct light beam passes through the housing to form a light beam. The third light distribution pattern. The first light distribution pattern, the second light distribution pattern, and the third light distribution pattern overlap each other to form an omnidirectional light distribution pattern.

According to an embodiment of the light-emitting diode bulb disclosed in the present invention, the LED bulb includes a circuit board assembly, a base, a first light-emitting diode light source module, and a second light-emitting diode light source. The module and a housing. The circuit board assembly includes a first surface and a second surface opposite to each other, and the housing includes a reflective surface. The first light emitting diode light source module is disposed on the first surface, and the first light emitting diode light source module is configured to emit a first light beam. The second light emitting diode light source module is disposed on the second surface, the second light emitting diode light source module is configured to emit a second light beam, and the second light beam comprises a reflected light beam and a constant light beam. The housing is coupled to the base. The first light beam passes through the housing to form a first light distribution pattern. The reflected light beam is reflected by the reflective surface and emerges from the housing to form a second light distribution pattern. The direct light beam passes through the housing to form a light beam. The third light distribution pattern. The first light distribution pattern, the second light distribution pattern, and the third light distribution pattern overlap each other to form an omnidirectional light distribution pattern.

According to the LED light source disclosed in the present invention, the direct light beam and the reflected light beam in the second light beam can compensate for the first light distribution pattern by the design of the reflective surface and the second light emitting diode light source module. Further, the light-emitting diode bulb disclosed in the present invention is an omnidirectional light source. The reflective surface can be disposed on the housing or the base.

The above description of the present invention and the following description of the embodiments are intended to illustrate and explain the spirit and principles of the invention, and to provide a further explanation of the scope of the invention.

Please refer to FIG. 2A, which is a schematic perspective view of a first embodiment of a light-emitting diode bulb according to the present invention. The light emitting diode bulb 100 can include, but is not limited to, a bulb connector 22, a circuit board assembly 104, a base 106, and a housing 112. In the present embodiment, the susceptor 106 can be used to dissipate the heat generated when the illuminating diode lamp 100 is turned on, and the bulb connector 22 can be externally supplied with a power source (not shown) to supply power to the illuminating diode lamp 100. The bulb connector 22 can be, but is not limited to, a spiral bulb connector. The material of the base 106 can be, but not limited to, aluminum. The material of the housing 112 can be, but is not limited to, transparent glass. For example, the bulb connector 22 can also be a GU10 type bulb connector. The base 106 can also be made of copper. The housing 112 can also be made of transparent plastic.

Please refer to FIG. 2B, which is a cross-sectional structural view of an embodiment of a light-emitting diode bulb according to FIG. 2A. The LED bulb 100 includes a circuit board assembly 104, a pedestal 106, a first illuminating diode light source module 108, a second illuminating diode light source module 110, and a housing 112. Wherein, the circuit board assembly 104 includes a first surface 52 and a second surface 54 that are opposite each other. The first LED light source module 108 is disposed on the first surface 52. The second LED light source module 110 is disposed on the second surface 54 and surrounds the junction M of the base 106 and the circuit board assembly 104. The housing 112 engages the base 106 and includes a reflective surface 72 that can be formed by disposing the reflective unit 102 on the housing 112.

In this embodiment, the housing 112 further includes a first housing 112a and a second housing 112b. The first housing 112a is configured to engage the pedestal 106 and the circuit board assembly 104 to form a first accommodating space 80a. The second illuminating light source module 110 and the reflective unit 102 are disposed in the first accommodating space 80a. The second housing 112b is connected to the circuit board assembly 104 to form a second accommodating space 80b. The first illuminating diode light source module 108 is disposed in the second accommodating space 80b. However, this embodiment is not intended to limit the present. invention. For example, the LED bulb 100 may include only a single housing 112 (refer to FIG. 2C), which is a cross-sectional structural view of a second embodiment of the LED bulb according to the present invention.

The first light emitting diode light source module 108 is configured to emit a first light beam 11 , and the second light emitting diode light source module 110 is configured to emit a second light beam 12 , and the second light beam 12 includes a reflected light beam 121 and a direct light beam 122 . The first light beam 11 passes through the second casing 112b to form a first light distribution pattern (refer to "3A"), which is a first light distribution type of an embodiment of the light-emitting diode bulb according to "2B". The reflected light beam 121 is reflected by the reflecting surface 72 and emerges from the housing 112 to form a second light distribution pattern (refer to "3B", which is a light-emitting diode bulb according to "2B". In the second light distribution pattern of the embodiment, the direct light beam 122 passes through the housing 112 to form a third light distribution pattern (refer to "3C", which is a light-emitting diode bulb according to "2B". An embodiment of a third light distribution pattern). The first light distribution pattern, the second light distribution pattern, and the third light distribution pattern overlap each other to form an omnidirectional light distribution pattern (refer to "3D map", which is based on "2B map" An embodiment of an omnidirectional light distribution pattern of a light-emitting diode bulb).

In this embodiment, the first light emitting diode light source module 108 can have a first light flux L ₁ , and the second light emitting diode light source module 110 can have a second light flux L ₂ , and the light emitting diode bulb 100 can be further including but not limited to a control unit 82, control unit 82 may be used to control the first light flux and second light flux L ₁ L _2.

The second LED light source module 110 further includes a reference axis 90 , and the reference axis 90 is parallel to the second surface 54 . In this embodiment, the first angle θ ₁ between the reflected beam 121 and the reference axis 90 may be between, but not limited to, between zero and one hundred and twenty degrees, such that the reflected beam 121 is reflected by the reflective surface 72 and is from the first The housing 112a is emitted to form a second light distribution pattern (as shown in "Fig. 3B"). The second angle θ ₂ between the direct beam 122 and the reference axis 90 may be, but is not limited to, between one hundred and twenty degrees to one hundred and eighty degrees, such that the direct beam 122 is directly emitted from the first housing 112a, thereby forming The third light distribution pattern (as shown in Figure 3C).

In addition, the circuit board assembly 104 can include, but is not limited to, a first circuit board 302, a substrate 304, and a second circuit board 306. The first circuit board 302 and the second circuit board 306 are disposed on opposite sides of the substrate 304. In more detail, the first circuit board 302 includes a first surface 52 and a third surface 56, and the second circuit board 306 includes a second surface 54 and a fourth surface 58, respectively, and the third surface 56 and the fourth surface 58 are respectively disposed on the substrate The opposite sides of 304. The substrate 304 facilitates heat dissipation of the first circuit board 202 and the second circuit board 204. The material of the substrate 304 may be, but not limited to, aluminum or copper.

Please refer to "4A" and "4B", respectively. The first light-emitting diode light source module according to "2B" is disposed on the first surface and the second light-emitting diode light source module. A schematic structural view of an embodiment of the second surface. The first LED package 108 can include, but is not limited to, four first LED package structures 84 , and each of the first LED packages 84 is disposed on the first surface 52 . The second LED body module 110 can include, but is not limited to, twelve second LED package structures 86. Each of the second LED packages 86 is disposed on the second surface 54 and each The second LED package structure 86 can surround the junction M (refer to "FIG. 2B"). The number of the first light emitting diode package structure 84 and the number of the second light emitting diode package structures 86 included in the second light emitting diode light source module 110 can be Adjust according to actual needs.

Please refer to FIG. 5A, which is a schematic structural view of an embodiment of a first light emitting diode package structure according to FIG. 2B. The first light emitting diode package structure 84 can be, but not limited to, an RGB light emitting diode, and can include a first positive electrode 402, 404, 406, a first negative electrode 401, 403, 405, and a red light emitting diode chip ( Not drawn), green light emitting diode wafer (not drawn), blue light emitting diode wafer (not drawn), first body 407 and lens 408. The first positive electrode 402, 404, 406 and the first negative electrode 401, 403, 405 are electrically connected to the first circuit board 302, and the first body 407 covers and protects the red light emitting diode chip and the green light emitting diode chip. With the blue light emitting diode chip, the lens 408 is used to control the direction of the red, green and blue light respectively emitted by the red light emitting diode chip, the green light emitting diode chip and the blue light emitting diode chip. The first positive electrode 402 and the first negative electrode 401 are used to drive the red light emitting diode chip to emit red light, and the first positive electrode 404 and the first negative electrode 403 are used to drive the green light emitting diode chip to emit green light, and the first positive electrode 406 The first negative electrode 405 is used to drive the blue light emitting diode chip to emit blue light. It should be noted that the first LED light source module 108 can control the first light beam 11 emitted by each of the first LED packages 84 by the control unit 82 (refer to FIG. 2B). Color, such as but not limited to red, yellow or white.

Please refer to FIG. 5B, which is a schematic structural view of an embodiment of a second LED package structure according to FIG. 2B. The second light emitting diode package structure 86 can be, but not limited to, an RGBW light emitting diode, and can include a second positive electrode 502, 504, 506, 508, a second negative electrode 501, 503, 505, 507, a red light emitting diode A polar body wafer (not drawn), a green light emitting diode wafer (not drawn), a blue light emitting diode wafer (not drawn), a white light emitting diode wafer (not drawn), a second body 509 and a lens 510. The second positive electrode 502, 504, 506, 508 and the second negative electrode 501, 503, 505, 507 are electrically connected to the second circuit board 306, and the second body 509 covers and protects the red light emitting diode chip and the green light emitting a diode chip, a blue light emitting diode chip and a white light emitting diode chip, and the lens 510 is used for controlling a red light emitting diode chip, a green light emitting diode chip, a blue light emitting diode chip and a white light emitting diode The polar body wafers emit red, green, blue, and white light, respectively. The second positive electrode 502 and the second negative electrode 501 are used to drive the red light emitting diode chip to emit red light, and the second positive electrode 504 and the second negative electrode 503 are used to drive the green light emitting diode chip to emit green light, and the second positive electrode 506 The second negative electrode 505 is used to drive the blue light emitting diode chip to emit blue light, and the second positive electrode 508 and the second negative electrode 507 are used to drive the white light emitting diode chip to emit white light. It should be noted that the second LED light source module 110 can control the second light beam 12 emitted by each second LED package structure 86 by the control unit 82 (refer to FIG. 2B). Color, such as but not limited to red, yellow or white.

In this embodiment, the first LED package structure 84 and the second LED package structure 86 can be RGB LEDs and RGBW LEDs, respectively, but this embodiment is not intended to limit the present invention. . For example, the first LED package structure 84 and the second LED package structure 86 can also be RGB LEDs or RGBW LEDs.

The following experiment was conducted in accordance with this example. Please refer to "6A" to "6G". The ratio of the first luminous flux to the second luminous flux of the LED bulb of "B2B" is 0.1, 0.2, 0.3, 0.5, 0.7, 1.0. And the light distribution pattern of the first plane and the third plane at 1.5 o'clock. Among them, the center position I in the "6A map" to the "6G map" is the position of the light-emitting diode bulb 100, and each concentric circle represents a contour line of different light intensity, and the radial line indicates the plumb line The angle between the axes (that is, the 0° radial lines). The first plane is a light-emitting diode bulb 100 having a 0°-180° cross-section, and the light distribution pattern of the first plane is a solid light distribution pattern of “6A to 6G”. The third plane is a 90°-270° cross section of the light-emitting diode bulb 100, and the light distribution pattern of the third plane is a dotted light distribution pattern of “6A to 6G”.

From "Figure 6A" to "of FIG. 6G" shows that when the second light flux ratio of the first light flux L ₁ L ₂ is closer to 0.1 (i.e., the second light-emitting diode-based light source module 110 is a light emitting diode The main brightness source of the bulb 100), the light-emitting diode bulb 100 has a light intensity of -75° between ±180° and 75° regardless of the light distribution pattern of the first plane or the third plane. The intensity of light between 0° and 75° is strong.

In addition, please refer to "Table 1", which is the same as the LED of the "B2B" with the ratio of the first luminous flux to the second luminous flux of 0.1, 0.2, 0.3, 0.5, 0.7, 1.0 and 1.5. The average illumination and uniformity of the height and illumination of the same work plane. Wherein, the light-emitting diode bulb 100 is disposed at a distance of 2.8 meters (meter, m) from the floor and disposed above the geometric center of the working plane, the working plane has an area of 5 meters x 5 meters and is 85 from the floor. The average illuminance is the average value of the illuminance of each measuring point on the working plane, and the uniformity is the ratio of the minimum illuminance to the average illuminance of all the measuring points.

From the "Table" it shows that, when the second light flux ratio of the first light flux L ₁ and L ₂ is 0.1, the higher the uniformity of the light emitting diode lamp 100, may be applied to interior lighting closer. When the ratio of the first luminous flux L ₁ to the second luminous flux L ₂ is closer to 1.5, the higher the average illuminance of the light-emitting diode bulb 100, the night illumination can be applied.

The housing 112 disclosed in the above first embodiment includes a reflecting surface 72, but the first embodiment is not intended to limit the present invention. In other words, the reflecting surface 72 can also be disposed on the pedestal 106 (refer to FIG. 7), which is a cross-sectional structural view of a third embodiment of the light-emitting diode bulb according to the present invention.

Referring to FIG. 7 , the LED lamp 100 includes a circuit board assembly 104 , a pedestal 106 , a first illuminating diode light source module 108 , a second illuminating diode light source module 110 , and a housing 112 . Wherein, the pedestal 106 includes a reflective surface 72, and the circuit board assembly 104 includes a first surface 52 and a second surface 54 that are opposite one another. The first LED light source module 108 is disposed on the first surface 52. The second LED light source module 110 is disposed on the second surface 54 and surrounds the junction M of the base 106 and the circuit board assembly 104. The housing 112 engages the base 106. In the present embodiment, the base 106 is made of a metal having a polished surface such that the base 106 has a reflective surface 72.

The circuit board assembly 104 disclosed in the first embodiment, the second embodiment, and the third embodiment may include, but is not limited to, two single-sided circuit boards (the first circuit board 302 and the second circuit board 306). In other words, the circuit board assembly 104 can be a double-sided circuit board, and the first light-emitting diode light source module 108 can configure the first light-emitting diode chip 32 on the first package body 30 by using a wafer direct packaging process. Between the first surfaces 52, the second LED light source module 110 can be disposed between the second package body 40 and the second surface 54 by using a wafer direct packaging process (refer to FIG. 8 is a cross-sectional structural view of a fourth embodiment of a light-emitting diode bulb according to the present invention and the first according to FIG. 8 A schematic diagram of an embodiment of a light emitting diode light source module and a second light emitting diode light source module).

Please refer to FIG. 8 , which is a cross-sectional structural view of a fourth embodiment of a light-emitting diode bulb according to the present invention. The LED bulb 100 includes a circuit board assembly 104, a pedestal 106, a first illuminating diode light source module 108, a second illuminating diode light source module 110, and a housing 112. Wherein, the pedestal 106 includes a reflective unit 102 having a reflective surface 72, and the circuit board assembly 104 includes a first surface 52 and a second surface 54 opposite each other. The reflection unit 102 is disposed on the base 106 , and the first LED light source module 108 is disposed on the first surface 52 . The second LED light source module 110 is disposed on the second surface 54 and surrounds the junction M of the base 106 and the circuit board assembly 104. The housing 112 engages the base 106.

Referring to "FIG. 9A" and "FIG. 9B", the circuit board assembly 104 can be, but is not limited to, a double-sided circular circuit board. That is, the circuit board assembly 104 can also be a double-sided square circuit board. The first light emitting diode light source module 108 can include, but is not limited to, eight first light emitting diode chips 32 and the first package body 30, but the embodiment is not intended to limit the present invention. In other words, the first LED light source module 108 can also include ten first LED chips 32, and the first LED body 108 includes the number of the first LED chips 32. It can be adjusted according to actual needs. Each of the first LED chips 32 can be disposed between the first package body 30 and the first surface 52 (ie, the first LED light source module is formed by a Chip On Board (COB) process. The group 108 is disposed on the first surface 52 of the circuit board assembly 104, and the first LED array 32 is disposed on the first surface 52 in a ring-like arrangement, but the embodiment is not intended to limit the present invention. In other words, the first LED chips 32 can also be arranged on the first surface 52 in an array arrangement. The arrangement of the first LED chips 32 can be adjusted according to actual needs. The first LED chip 32 can be a red light emitting diode chip, but the embodiment is not intended to limit the present invention. That is to say, the first LED chip 32 can also be partially a red light emitting diode chip, a part of a blue light emitting diode chip, and a part of a green light emitting diode chip, which can be adjusted according to actual needs.

The second LED light source module 110 can include, but is not limited to, the eight second LED chips 42 and the second package 40, but the embodiment is not intended to limit the present invention. In other words, the second LED light source module 110 can also include ten first LED chips 42 , and the second LED light source module 110 includes the second LED chips 42 . It can be adjusted according to actual needs. Each of the second LED chips 42 can be disposed between the second package 40 and the second surface 54 (ie, the second LED light source module is processed by a Chip On Board (COB) process. The set 110 is disposed on the second surface 54 of the circuit board assembly 104, and the second LED array 42 surrounds the joint M in an annular arrangement, but this embodiment is not intended to limit the invention. In other words, the second LED chip 42 can also surround the connection M in a square arrangement, and the arrangement of the second LED chips 42 can be adjusted according to actual needs. The second LED chips 42 may all be red light emitting diode chips, but the embodiment is not intended to limit the present invention. That is to say, the second LED chip 42 can also be partially a red light emitting diode chip, a part of a blue light emitting diode chip, and a part of a green light emitting diode chip, which can be adjusted according to actual needs.

Referring to FIG. 8 , the second LED light source module 110 further includes a reference axis 90 , and the reference axis 90 is parallel to the second surface 54 . In the present embodiment, the first angle θ ₁ between the reflected beam 121 and the reference axis 90 may be between, but not limited to, between zero and one hundred and twenty degrees, such that the reflected beam 121 is reflected by the reflective surface 72 and is self-contained. 112 out. The second angle θ ₂ between the direct beam 122 and the reference axis 90 may be, but is not limited to, between one hundred and twenty degrees to one hundred and eighty degrees such that the direct beam 122 exits directly from the housing 112.

In this embodiment, the first light emitting diode light source module 108 can have a first light flux L ₁ , and the second light emitting diode light source module 110 can have a second light flux L ₂ , and the light emitting diode bulb 100 can be further including but not limited to a control unit 82, control unit 82 may be used to control the first light flux and second light flux L ₁ L _2. In addition, the first LED light source module 108 can also control the color of the first light beam 11 emitted by each of the first LED chips 32 by the control unit 82, such as but not limited to red light, green light or blue light. . The second LED light source module 110 can also control the color of the second light beam 12 emitted by each of the second LED chips 42 by the control unit 82, such as, but not limited to, red light, green light or blue light. When the LED lamp 100 is used to output white light, the control unit 82 can control each of the first LED chip 32 and each of the second LED chips 42 to emit a first beam 11 and a second beam, respectively. The color of 12 is such that the first beam 11 and the second beam 12 are white beams, but this embodiment is not intended to limit the invention. For example, the first package body 30 and the second package body 40 may further include phosphor powder (not drawn) or the housing 112 may further include phosphor powder (not drawn) or a fluorescent film (not drawn), so that the control The unit 82 controls the color of the first light beam 11 and the second light beam 12 of each of the first light emitting diode chips 32 and each of the second light emitting diode chips 42 to be a specific color light, and the phosphor powder is the first light beam. 11 and the second light beam 12 is excited to output a light beam that is complementary to a specific color light, thereby causing the light diode bulb 100 to output white light.

The circuit board assembly 104 disclosed in the fourth embodiment may be a double-sided circuit board, and the first light-emitting diode light source module 108 may be configured to first configure the first light-emitting diode chip 32 by using a wafer direct packaging process. Between the package body 30 and the first surface 52, the second LED light source module 110 can dispose the second LED body 42 on the second package body 40 and the second surface 54 by using a wafer direct packaging process. The fourth embodiment is not intended to limit the invention. In other words, the circuit board assembly 104 can include a first circuit board 202 and a second circuit board 204, the first circuit board including the first surface 52 and the third surface 92, and the second circuit board 204 including the second surface 54 and the The four surfaces 94, the third surface 92 and the fourth surface 94 face each other (refer to "10th drawing", "11A" and "11B", respectively, which are the light-emitting diode bulbs according to the present invention. A cross-sectional structural view of a fifth embodiment and a schematic structural view of an embodiment of a first light-emitting diode light source module and a second light-emitting diode light source module according to FIG.

Referring to FIG. 10, the first circuit board 202 and the second circuit board 204 can be, but are not limited to, a single-sided circuit board. It should be noted that the third surface 92 of the first circuit board 202 and the fourth surface 94 of the second circuit board 204 may overlap each other.

Please refer to "11A" and "11B". The first light emitting diode light source module 108 can include, but is not limited to, eight first light emitting diode chips 32 and the first package body 30, but the embodiment is not intended to limit the present invention. In other words, the first LED light source module 108 can also include ten first LED chips 32, and the first LED body 108 includes the number of the first LED chips 32. It can be adjusted according to actual needs. Each of the first LED chips 32 can be disposed between the first package body 30 and the first surface 52 (ie, the first LED light source module is formed by a Chip On Board (COB) process. The group 108 is disposed on the first surface 52 of the circuit board assembly 104, and the first LED array 32 is disposed on the first surface 52 in a ring-like arrangement, but the embodiment is not intended to limit the present invention. In other words, the first LED chips 32 can also be arranged on the first surface 52 in an array arrangement. The arrangement of the first LED chips 32 can be adjusted according to actual needs. The first LED chip 32 can be a red light emitting diode chip, but the embodiment is not intended to limit the present invention. That is to say, the first LED chip 32 can also be partially a red light emitting diode chip, a part of a blue light emitting diode chip, and a part of a green light emitting diode chip, which can be adjusted according to actual needs.

The second LED light source module 110 can include, but is not limited to, the eight second LED chips 42 and the second package 40, but the embodiment is not intended to limit the present invention. In other words, the second LED light source module 110 can also include ten first LED chips 42 , and the second LED light source module 110 includes the second LED chips 42 . It can be adjusted according to actual needs. Each of the second LED chips 42 can be disposed between the second package 40 and the second surface 54 (ie, the second LED light source module is processed by a Chip On Board (COB) process. The set 110 is disposed on the second surface 54 of the circuit board assembly 104, and the second LED array 42 surrounds the joint M in an annular arrangement, but this embodiment is not intended to limit the invention. In other words, the second LED chip 42 can also surround the connection M in a square arrangement, and the arrangement of the second LED chips 42 can be adjusted according to actual needs. The second LED chips 42 may all be red light emitting diode chips, but the embodiment is not intended to limit the present invention. That is to say, the second LED chip 42 can also be partially a red light emitting diode chip, a part of a blue light emitting diode chip, and a part of a green light emitting diode chip, which can be adjusted according to actual needs.

In addition, please refer to FIG. 12, which is a cross-sectional structural view of a sixth embodiment of a light-emitting diode bulb according to the present invention. In this embodiment, the LED bulb 100 includes a circuit board assembly 104, a pedestal 106, a first illuminating diode light source module 108, a second illuminating diode light source module 110, and a housing 112. The pedestal 106 includes a reflective unit 102 having a reflective surface 72. The circuit board assembly 104 can include a first circuit board 302, a second circuit board 306, and a substrate 410. The first circuit board 302 can include a first surface 52. The third circuit board 306 can include a second surface 54 and a fourth surface 98. The third surface 96 and the fourth surface 98 can be disposed on opposite sides of the substrate 410. The reflective unit 102 is disposed on the base 106. . The first LED light source module 108 is disposed on the first surface 52. The second LED light source module 110 is disposed on the second surface 54 and surrounds the junction M of the base 106 and the circuit board assembly 104. The housing 112 engages the base 106.

The first light emitting diode light source module 108 is configured to emit a first light beam 11 , and the second light emitting diode light source module 110 is configured to emit a second light beam 12 , and the second light beam 12 includes a reflected light beam 121 and a direct light beam 122 . The first beam 11 exits directly from the housing 112, the reflected beam 121 is reflected by the reflecting surface 72 and exits from the housing 112, and the direct beam 122 exits directly from the housing 112.

The second LED light source module 110 further includes a reference axis 90 , and the reference axis 90 is parallel to the second surface 54 . In the present embodiment, the first angle θ ₁ between the reflected beam 121 and the reference axis 90 may be between, but not limited to, between zero and one hundred and twenty degrees, such that the reflected beam 121 is reflected by the reflective surface 72 and is self-contained. 112 out. The second angle θ ₂ between the direct beam 122 and the reference axis 90 may be, but is not limited to, between one hundred and twenty degrees to one hundred and eighty degrees such that the direct beam 122 exits directly from the housing 112.

In addition, in this embodiment, the first light emitting diode light source module 108 and the second light emitting diode light source module 110 can be implemented in the same manner as the first embodiment (for example, "4A" and "4B". The same is shown here, and will not be repeated here.

The control unit 82 can be used to control the first luminous flux L ₁ , the second luminous flux L ₂ , the color of the first light beam 11 emitted by each first LED package structure 84, and each second LED package structure. 86, the color of the second light beam 12, the color of the first light beam 11 emitted by each of the first light emitting diode chips 32, and the color of the first light beam 11 emitted by each of the second light emitting diode chips 42 The first light emitting diode light source module 108 or the second light emitting diode light source module 110 can be selectively activated. When the control unit 82 only activates the first LED light source module 108 (ie, the first LED light source module 108 emits the first light beam 11), it can be used to replace the conventional LED bulb. When the control unit 82 only activates the second light emitting diode light source module 110 (ie, the second light emitting diode light source module 110 emits the second light beam 12), it can be used for indirect illumination. When the control unit 82 simultaneously activates the first LED light source module 108 and the second LED light source module 110 (ie, the first LED light source module 108 emits the first light beam 11 and the second illumination The diode light source module 110 emits a second light beam 12) that can be used in place of a conventional incandescent light bulb.

According to the light-emitting diode bulb disclosed in the present invention, the direct light beam and the reflected light beam in the second light beam can compensate the first light distribution pattern by adjusting the design of the reflective surface and the second light-emitting diode light source module. Further, the light-emitting diode bulb disclosed in the present invention is an omnidirectional light source. The color, the ratio of the first light flux and the second light flux, and the selectivity of the first light beam and the second light beam output by the first light emitting diode light source module and the second light emitting diode light source module may be controlled by the control unit The first light emitting diode light source module or the second light emitting diode light source module is actuated. The heat energy generated when the light-emitting diode bulb is turned on by the substrate and the pedestal can be radiated to the external environment. The reflective surface can be disposed on the pedestal or the housing, and the first illuminating diode light source module can be configured on the first surface by using a wafer direct packaging process or by using a plurality of first The light emitting diode package structure is disposed on the first surface; the second light emitting diode light source module can use the wafer direct packaging process to configure the plurality of second light emitting diode chips on the second surface or utilize the plurality of second The light emitting diode package structure is disposed on the second surface.

While the present invention has been described above in terms of the preferred embodiments thereof, it is not intended to limit the invention, and the invention may be modified and modified without departing from the spirit and scope of the invention. The scope of patent protection of the invention is subject to the definition of the scope of the patent application attached to this specification.

11. . . First beam

12. . . Second beam

twenty two. . . Light bulb connector

30. . . First package

32. . . First light emitting diode chip

40. . . Second package

42. . . Second light emitting diode chip

52. . . First surface

54. . . Second surface

56, 92, 96. . . Third surface

58, 94, 98. . . Fourth surface

72. . . Reflective surface

80a. . . First accommodation space

80b. . . Second accommodation space

82. . . control unit

84. . . First light emitting diode package structure

86. . . Second light emitting diode package structure

90. . . Reference axis

100. . . Light-emitting diode bulb

102. . . Reflection unit

104. . . Board assembly

106. . . Pedestal

108. . . First light emitting diode light source module

110. . . Second light emitting diode light source module

112‧‧‧Shell

112a‧‧‧First housing

112b‧‧‧second housing

121‧‧‧Reflected beam

122‧‧‧Direct beam

202, 302‧‧‧ first board

204, 306‧‧‧ second circuit board

304, 410‧‧‧ substrate

401, 403, 405‧‧‧ first negative

402, 404, 406‧‧‧ first positive

407‧‧‧First Ontology

408, 510‧ ‧ lens

501, 503, 505, 507‧‧‧ second negative

502, 504, 506, 508‧‧‧ second positive

509‧‧‧Second ontology

θ ₁ ‧‧‧first angle

θ ₂ ‧‧‧second angle

Figure 1 is a light distribution pattern of a conventional incandescent bulb in a first plane, a second plane, and a third plane.

2A is a schematic perspective view showing a first embodiment of a light-emitting diode bulb according to the present invention.

Fig. 2B is a schematic cross-sectional view showing an embodiment of the light-emitting diode bulb according to Fig. 2A.

2C is a cross-sectional structural view showing a second embodiment of the light-emitting diode bulb according to the present invention.

Fig. 3A is a schematic view showing the first light distribution pattern of an embodiment of the light-emitting diode bulb according to Fig. 2B.

Fig. 3B is a schematic view showing a second light distribution pattern of an embodiment of the light-emitting diode bulb according to Fig. 2B.

Fig. 3C is a schematic view showing a third light distribution pattern of an embodiment of the light-emitting diode bulb according to Fig. 2B.

The 3D figure is a schematic diagram of an omnidirectional light distribution pattern of an embodiment of the light-emitting diode bulb according to FIG. 2B.

FIG. 4A is a schematic structural view of an embodiment of the first light emitting diode light source module disposed on the first surface according to FIG. 2B.

FIG. 4B is a schematic structural view of an embodiment of the second light emitting diode light source module disposed on the second surface according to FIG. 2B.

FIG. 5A is a schematic structural view of an embodiment of a first light emitting diode package structure according to FIG. 2B.

FIG. 5B is a schematic structural view of an embodiment of a second light emitting diode package structure according to FIG. 2B.

Fig. 6A is a view showing the light distribution pattern on the first plane and the third plane when the ratio of the first luminous flux to the second luminous flux of the light-emitting diode bulb of Fig. 2B is 0.1.

Fig. 6B is a view showing the light distribution pattern on the first plane and the third plane when the ratio of the first luminous flux to the second luminous flux of the light-emitting diode bulb of Fig. 2B is 0.2.

Fig. 6C is a view showing the light distribution pattern on the first plane and the third plane when the ratio of the first luminous flux to the second luminous flux of the light-emitting diode bulb of Fig. 2B is 0.3.

Fig. 6D is a light distribution pattern of the first plane and the third plane when the ratio of the first luminous flux to the second luminous flux of the light-emitting diode bulb of Fig. 2B is 0.5.

Fig. 6E is a view showing the light distribution pattern on the first plane and the third plane when the ratio of the first luminous flux to the second luminous flux of the light-emitting diode bulb of Fig. 2B is 0.7.

Fig. 6F is a view showing a light distribution pattern on the first plane and the third plane when the ratio of the first luminous flux to the second luminous flux of the light-emitting diode bulb of Fig. 2B is 1.0.

Fig. 6G is a view showing the light distribution pattern on the first plane and the third plane when the ratio of the first luminous flux to the second luminous flux of the light-emitting diode bulb of Fig. 2B is 1.5.

Figure 7 is a schematic cross-sectional view showing a third embodiment of a light-emitting diode bulb according to the present invention.

Figure 8 is a cross-sectional structural view showing a fourth embodiment of a light-emitting diode bulb according to the present invention.

FIG. 9A is a schematic structural view of an embodiment of the first light emitting diode light source module according to FIG. 8 .

FIG. 9B is a schematic structural view of an embodiment of the second light emitting diode light source module according to FIG. 8 .

Figure 10 is a cross-sectional structural view showing a fifth embodiment of a light-emitting diode bulb according to the present invention.

FIG. 11A is a schematic structural view of an embodiment of the first light emitting diode light source module disposed on the first surface according to FIG. 10 .

11B is a schematic structural view of an embodiment in which the second light emitting diode light source module according to FIG. 10 is disposed on the second surface.

Figure 12 is a cross-sectional structural view showing a sixth embodiment of a light-emitting diode bulb according to the present invention.

11‧‧‧First beam

12‧‧‧second beam

52‧‧‧ first surface

54‧‧‧second surface

56‧‧‧ third surface

58‧‧‧ fourth surface

72‧‧‧reflecting surface

80a‧‧‧First accommodation space

80b‧‧‧Second space

82‧‧‧Control unit

84‧‧‧First LED package structure

86‧‧‧Second light-emitting diode package structure

90‧‧‧reference axis

100‧‧‧Lighting diode bulb

102‧‧‧Reflective unit

104‧‧‧Circuit board assembly

106‧‧‧Base

108‧‧‧First light-emitting diode light source module

110‧‧‧Second light-emitting diode light source module

112‧‧‧Shell

112a‧‧‧First housing

112b‧‧‧second housing

121‧‧‧Reflected beam

122‧‧‧Direct beam

302‧‧‧First board

304‧‧‧Substrate

306‧‧‧Second circuit board

θ ₁ ‧‧‧first angle

θ ₂ ‧‧‧second angle

Claims (20)

A light-emitting diode bulb includes: a circuit board assembly including a first surface and a second surface opposite to each other; a base including a reflective surface; and a first light-emitting diode light source module The first light emitting diode light source module is configured to emit a first light beam, the first light emitting diode light source module has a first light flux, and the second light emitting diode light source mode is configured on the first surface. The second light emitting diode light source module is configured to emit a second light beam, the second light beam includes a reflected light beam and a direct light beam, and the second light emitting diode light source is disposed on the second surface. The module has a second luminous flux, the ratio of the first luminous flux to the second luminous flux is between 0.1 and 1.5; and a casing that engages the base; wherein the second LED light source module Further comprising a reference axis parallel to the second surface, a first angle between the reflected beam and the reference axis being between zero and one hundred and twenty degrees, such that the reflected beam is reflected by the reflective surface And exiting from the housing, the direct beam a second angle between the reference axes is between one hundred and twenty degrees to one hundred and eighty degrees, such that the direct beam is directly emitted from the housing, and the first beam passes through the housing to form a first a light distribution pattern, the reflected light beam being reflected by the reflective surface and emerging from the housing to form a second light distribution pattern, the direct light beam passing through the housing to form a third light distribution pattern The first light distribution pattern and the second light distribution pattern The state and the third light distribution pattern overlap each other to form an omnidirectional light distribution pattern. The light-emitting diode bulb of claim 1, wherein the light-emitting diode bulb further comprises a control unit for controlling the first light flux and the second light flux. The light-emitting diode lamp of claim 1, wherein the first light-emitting diode light source module comprises a plurality of first light-emitting diode chips and a first package, the first light-emitting diode chips The first package is disposed between the first surface and the first surface. The light emitting diode lamp of claim 1, wherein the second light emitting diode light source module comprises a plurality of second light emitting diode chips and a second package, the second light emitting diode chips The second package is disposed between the second surface and the second surface. The light-emitting diode package of claim 1, wherein the first light-emitting diode light source module comprises a plurality of first light-emitting diode package structures, and the first light-emitting diode package structures are disposed in the first light-emitting diode package structure. On the surface. The light-emitting diode package of claim 1, wherein the second light-emitting diode light source module comprises a plurality of second light-emitting diode package structures, and the second light-emitting diode package structures are disposed in the first light-emitting diode package structure. On the surface. The light-emitting diode bulb of claim 1, wherein the circuit board assembly further comprises a first circuit board and a second circuit board, the first circuit board including the first surface and a third surface, the first The second circuit board includes the second surface and a fourth surface, the third surface facing the fourth surface. The LED package of claim 1, wherein the circuit board assembly further comprises a first circuit board, a second circuit board and a substrate, the first circuit board including the first surface and a third surface The second circuit board includes the second surface and a first The fourth surface and the fourth surface are disposed on opposite sides of the substrate. The light-emitting diode bulb of claim 8, wherein the substrate is made of aluminum or copper to dissipate heat generated by the first circuit board and the second circuit board. The illuminating diode bulb of claim 1, wherein the housing further comprises: a first housing that engages the pedestal and the circuit board assembly to form a first accommodating space, the second illuminating The diode light source module and the reflective surface are disposed in the first accommodating space; and a second housing is coupled to the circuit board assembly to form a second accommodating space, the first illuminating diode The light source module is disposed in the second accommodating space. The light-emitting diode bulb of claim 1, wherein the light-emitting diode bulb further comprises a control unit, the control unit selectively actuating the first light-emitting diode light source module or the second light-emitting diode Polar body light source module. The light-emitting diode bulb of claim 1, wherein the light-emitting diode bulb further comprises a control unit for controlling the color of the first light beam or the color of the second light beam. The light-emitting diode bulb of claim 1, wherein the base comprises a reflecting unit having the reflecting surface. A light-emitting diode bulb includes: a circuit board assembly including a first surface and a second surface opposite to each other; a base; a first light-emitting diode light source module disposed on the first surface On, that The first light emitting diode light source module is configured to emit a first light beam, the first light emitting diode light source module has a first light flux, and the second light emitting diode light source module is disposed in the second On the surface, the second LED light source module is configured to emit a second light beam, the second light beam includes a reflected light beam and a constant light beam, and the second light emitting diode light source module has a second light flux. The ratio of the first light flux to the second light flux is between 0.1 and 1.5; and a housing that engages the base, the housing includes a reflective surface; wherein the second light emitting diode light source module Further comprising a reference axis parallel to the second surface, a first angle between the reflected beam and the reference axis being between zero and one hundred and twenty degrees, such that the reflected beam is reflected by the reflective surface And exiting from the housing, a second angle between the direct beam and the reference axis is between one hundred and twenty degrees to one hundred and eighty degrees, such that the direct beam is directly emitted from the housing, the first a light beam passes through the housing to form a first light distribution type a light distribution pattern, the reflected light beam is reflected by the reflective surface and emerges from the housing to form a second light distribution pattern, and the direct light beam passes through the housing to form a third light distribution pattern, the first The light distribution pattern, the second light distribution pattern and the third light distribution pattern overlap each other to form an omnidirectional light distribution pattern. The light-emitting diode bulb of claim 14, wherein the housing further comprises: a first housing that engages the base and the circuit board assembly to form a first accommodating space, the second illuminating a diode light source module and the reflective surface are disposed in the first accommodating space; and a second housing is coupled to the circuit board assembly to form a second accommodating space The first light emitting diode light source module is disposed in the second accommodating space. The illuminating diode bulb of claim 14, wherein the illuminating diode bulb further comprises a control unit for controlling the first luminous flux and the second luminous flux. The LED package of claim 14, wherein the circuit board assembly further comprises a first circuit board, a second circuit board and a substrate, the first circuit board including the first surface and a third surface The second circuit board includes the second surface and a fourth surface, and the third surface and the fourth surface are disposed on opposite sides of the substrate. The light-emitting diode bulb of claim 17, wherein the substrate is made of aluminum or copper to dissipate heat generated by the first circuit board and the second circuit board. The light-emitting diode bulb of claim 14, wherein the light-emitting diode bulb further comprises a control unit, the control unit selectively actuating the first light-emitting diode light source module or the second light-emitting diode Polar body light source module. The light-emitting diode bulb of claim 14, wherein the light-emitting diode bulb further comprises a control unit for controlling the color of the first light beam or the color of the second light beam.