TW201516326A - Lamp cup module and light emitting device - Google Patents

Abstract

A Lamp cup module comprising a cup body having a cup bottom, a partition and a cup wall disposed around the cup bottom, a colloid and a power conversion unit is disclosed. The partition is disposed on the cup bottom and is connected the cup wall to constitute a first accommodation space and a second accommodation space. The cup bottom has a through hole that communicates the second accommodation space with the external. The colloid is filled into the first accommodation space. The power conversion unit is fixed inside the first accommodation space.

Description

Lamp cup module and illuminating device

The invention relates to a lamp cup module and a light-emitting device, in particular to a lamp cup which is provided with a colloid to fix a power conversion unit by a lamp body and to improve heat dissipation efficiency by selecting a colloid having heat dissipation properties. Module and lighting device.

Nowadays, lighting fixtures have been widely used in applications, and people are increasingly demanding lighting fixtures, such as requiring small size, light weight, high luminous efficiency and long life.

Light-emitting diodes (LEDs) have excellent characteristics such as small size, low power consumption, shock resistance, fast reaction speed, long life, environmental protection and no mercury, and due to the rising awareness of environmental protection and energy conservation in recent years, the light-emitting diodes have been widely used. Applied to a variety of lighting equipment.

However, because the LED is solid-state illumination, that is, the wafer is energized, the quantum exciplex is recombined to emit energy (light). However, in the process of illuminating, a large amount of heat is also generated at the same time, and the accumulation of these heats causes the LED to cause severe light decay in a high temperature environment, thereby affecting the brightness and life of the LED.

Moreover, when the LED is matched with the lamp cup module into a light-emitting device, the power conversion unit (such as a transformer, etc.) located inside the lamp cup also generates heat during operation, and since the lamp cup has a hollow structure, the heat conduction rate of the gas is poor. Heat and electricity generated by the IED The heat of the source conversion unit is not easily discharged, which is liable to cause component failure, thereby affecting the reliability of the overall device.

Furthermore, in the combination of the lamp cup module, when the power conversion unit and the lamp cup are to be fixed by the glue, since the conventional lamp cup has a hollow structure and has a plurality of openings, the filling of the colloid becomes difficult and difficult. Engage.

In view of the above problems of the conventional light-emitting device, the object of the present invention is to provide a lamp cup module and a light-emitting device for improving heat dissipation efficiency and reliability of the lamp cup module.

To achieve the foregoing objective, the present invention provides a lamp cup module comprising: a lamp cup body having a cup bottom, a partition member and a cup wall of the cup bottom, wherein the partition member is disposed on the cup bottom and connected to the cup wall The first accommodating space and the second accommodating space are formed, and the bottom of the cup has at least a continuous through hole communicating with the second accommodating space and the outside; a colloid is filled in the first accommodating space; and a power conversion unit borrows The colloid is fixed in the first accommodating space formed by the body of the lamp cup.

According to an embodiment of the lamp cup module of the present invention, the cup bottom, the partition member and the cup wall are integrally formed.

According to an embodiment of the lamp cup module of the present invention, the material of the lamp cup body is aluminum.

According to an embodiment of the lamp cup module of the present invention, the thermal conductivity of the colloid is between 1 and 15 W/m-k.

According to an embodiment of the lamp cup module of the present invention, the power conversion unit comprises at least a transformer and a capacitor.

According to an embodiment of the lamp cup module of the present invention, the height of the colloid filled in the first accommodating space is greater than half of the height of the power conversion unit and smaller than the height of the cup wall.

According to an embodiment of the lamp cup module of the present invention, the coverage area of the transformer in the power conversion unit is greater than 60%.

According to an embodiment of the lamp cup module of the present invention, the lamp cup module of the present invention further comprises a heat dissipation layer coated on an inner surface of the lamp cup body.

According to an embodiment of the lamp cup module of the present invention, the lamp cup module of the present invention further comprises a heat dissipating fin disposed on the cup wall.

In addition, the present invention further provides a light-emitting device, comprising: a substrate; at least one light-emitting unit disposed on an upper surface of the substrate; and the light cup module as described above, wherein the substrate covers an opening of one of the body of the lamp cup, And the power conversion unit of the lamp cup module is electrically connected to the light-emitting unit; a lamp holder is connected to the lamp cup body of the lamp cup module and covers the through hole of the lamp cup module; and a wire is electrically connected to the power conversion unit and The lamp holder is connected via a through hole of the cup bottom of the lamp cup body.

According to an embodiment of the illuminating device of the present invention, the lamp holder is connected to the lamp cup body by snapping, locking, screwing or adhesively.

According to an embodiment of the illuminating device of the present invention, a lamp cover is further disposed on the substrate to cover the illuminating unit.

As described above, the lamp cup module and the light-emitting device according to the present invention may have one or more of the following advantages:

(1) The lamp cup module and the illuminating device of the present invention can provide a accommodating space for accommodating the colloid by the arrangement of the partitioning member and the cup bottom and the cup wall in the main body of the lamp cup, so that The power conversion unit can be fixed in the accommodating space of the lamp cup body by the colloid, so as to reduce the probability that the internal components of the power conversion unit fall off due to external force, and improve the overall reliability of the lamp cup module.

(2) The lamp cup module and the illuminating device of the present invention can promote the heat dissipation efficiency of the lamp cup module by providing a colloid having a heat dissipating property in the accommodating space of the lamp cup main body.

100‧‧‧light cup body

102‧‧‧ cup bottom

104‧‧‧Parts

106‧‧‧ cup wall

200‧‧‧ colloid

300‧‧‧Power Conversion Unit

S1‧‧‧First accommodation space

S2‧‧‧Second accommodating space

H‧‧‧through hole

40‧‧‧heat layer

50‧‧‧ Heat sink fins

400‧‧‧Substrate

401‧‧‧ upper surface

402‧‧‧ lower surface

403‧‧‧Opening

500‧‧‧Lighting unit

600‧‧‧ lamp holder

700, 702‧‧‧ wires

800‧‧‧shade

Figure 1 is a cross-sectional view showing a first preferred embodiment of the lamp cup module of the present invention.

Figure 2 is a perspective view of the lamp cup module of Figure 1.

Figure 3 is a cross-sectional view showing a second preferred embodiment of the lamp cup module of the present invention.

Figure 4 is a schematic cross-sectional view showing a first preferred embodiment of the light-emitting device of the present invention.

Figure 5 is a schematic cross-sectional view showing a second preferred embodiment of the light-emitting device of the present invention.

Please refer to FIG. 1 and FIG. 2 together, which are schematic cross-sectional views and perspective views of a first preferred embodiment of the lamp cup module of the present invention. As shown in FIGS. 1 and 2, the lamp cup module of the present invention includes a lamp cup body 100, a colloid 200, and a power conversion unit 300. The cup body 100 has a cup bottom 102, a partitioning member 104, and a cup wall 106 that surrounds the cup bottom 102. The partitioning member 104 is disposed on the cup bottom 102 and connects the cup wall 106 to form a first receiving space S1 and a second capacity. Set space S2. Cup bottom 102 At least the perforation H is connected to the second accommodating space S2 and the outside, and the lamp cup module of the present invention does not limit the size of the through hole H. Any through hole that can connect the power conversion unit 300 and the external power source can be provided. All are within the scope of the claimed invention. In addition, the through hole H of the cup bottom 102 may also be equal in size to the inner edge of the bottom of the cup wall 106. Thus, the shape of the cup bottom 102 is equivalent to the orthographic shape of the bottom of the cup wall 106, the cup bottom 102 and the cup. Wall 106 will have no significant dividing line. The colloid 200 is filled in the first accommodating space S1, so that the power conversion unit 300 can be fixed in the first accommodating space S1 formed by the lamp cup main body 100 by the colloid 200. As shown in Fig. 1, the cup bottom 102, the divider 104 and the cup wall 106 are selectively integrally formed. The material of the lamp cup body 100 is a heat dissipation material, for example, selected from the group consisting of gold, silver, copper, iron, aluminum, cobalt, nickel, zinc, and titanium, or the material of the lamp cup body 100 may be, for example, ceramic. Or plastic. Preferably, the material of the lamp cup body 100 is aluminum.

In other words, the colloid 200 can be, for example, a colloid having heat dissipation properties, and the thermal conductivity can be, for example, between 1 and 15 W/m-k. The power conversion unit 300 includes at least a transformer and a capacitor for the purpose of voltage conversion and storage of power. In addition, in order to effectively improve the heat dissipation property of the lamp cup module of the present invention, the height of the colloid 200 filled in the first accommodating space S1 may be, for example, greater than half of the height of the power conversion unit 300 and smaller than the height of the cup wall 106. It should be noted that the power conversion unit 300 can be, for example, a PCB board (printed circuit board) configured with at least a transformer and a capacitor. Therefore, the height of the power conversion unit 300 is the length of the PCB board, or the colloid 200 is connected to the power conversion unit. The coverage area of the transformer in 300 can be, for example, greater than 60%. Since the colloid 200 is a material having a heat dissipation function, if the contact area of the colloid 200 with the power conversion unit 300 is increased (that is, the surface area of the colloid 200 covering the power conversion unit 300 is higher), the heat dissipation efficiency is higher, and further Improve power conversion efficiency while power is turned The changing unit 300 can also be firmly engaged with the lamp cup body 100 to improve the reliability of the lamp cup module. In addition, the lamp cup module of the present invention does not limit the height or form of the partition member 104 as long as the height of the colloid 200 filled in the first accommodating space S1 is greater than half of the height of the power conversion unit 300 and smaller than the cup wall 106. The height is the scope of the claimed invention, that is, any partition 104 that can form the first accommodating space S1 and the second accommodating space S2 with the cup bottom 102 and the cup wall 106 is claimed in the present invention. The scope.

In addition, in order to improve the heat dissipation effect of the lamp cup module of the present invention, a heat dissipation layer may be coated on the inner surface of the lamp cup body 100 and/or a heat dissipation fin may be disposed on the cup wall. Please refer to FIG. 3, which is a cross-sectional view of a second preferred embodiment of the lamp cup module of the present invention. As shown in FIG. 3, the second preferred embodiment of the lamp cup module of the present invention differs from the first preferred embodiment only in the inner surface of the lamp cup body 100 in the second preferred embodiment ( For example, at least one of the cup wall 106, the cup bottom 102 and the partition member 104 is coated with the heat dissipation layer 40 and the heat dissipation fin 50 is disposed on the cup wall 106 to improve the heat dissipation effect of the lamp cup module. Preferably, The heat dissipation layer is made of aluminum or aluminum oxide. It should be noted that although the lamp cup module in FIG. 4 has both the heat dissipation layer 40 and the heat dissipation fins 50, the user can selectively provide at least the heat dissipation layer 40 and the heat dissipation fins 50 according to actual needs. One. That is, in the lamp cup module of the present invention, it is not limited to simultaneously provide the heat dissipation layer 40 and the heat dissipation fins 50. In addition, the present invention does not limit the thickness and material of the heat dissipation layer 40. The thickness and material of any heat dissipation layer 40 that can provide a heat dissipation function are within the scope of the claimed invention. The present invention also does not limit the form and number of heat dissipating fins 50. Any heat dissipating fins 50 that provide a heat dissipating function are within the scope of the claimed invention.

It is worth mentioning that after the lamp cup body 100 is separated from the first accommodating space S1 and the second accommodating space S2 by the partition member 104, the colloid 200 can be directly filled in the first In the accommodating space S1, the power conversion unit 300 is fixed to improve the disadvantages in the prior art that one of the two openings of the lamp cup must cover a light board to fill the glue, and the conventional technique may also have a leak. The problem of glue causes the power conversion unit to be fixed firmly or the appearance of the lamp cup is not beautiful. The colloid 200 selects the thermal conductive adhesive with a thermal conductivity of 1~15W/mk, except that the solid itself has the advantage of better heat transfer rate than the gas, and the thermal conductive adhesive with thermal conductivity of 1~15W/mk can discharge the power faster. The heat generated by unit 300, especially for the transformer, maintains a stable operating temperature to maintain power conversion efficiency at a good level.

Please refer to FIG. 4, which is a cross-sectional view of a first preferred embodiment of the light-emitting device of the present invention. As shown in FIG. 4, the light-emitting device of the present invention includes a substrate 400, at least one light-emitting unit 500 disposed on the upper surface 401 of the substrate 400, the lamp cup module and the lamp holder 600 in the first preferred embodiment, and Wires 700, 702. The substrate 400 covers the opening 403 of the lamp cup body 100, and the power conversion unit 300 of the lamp cup module is electrically connected to the light emitting unit 500. The electrical connection may be performed by providing an electrode connection on the lower surface 402 of the substrate 400. A pad (not shown) is connected to the power conversion unit 300 and the electrode pad by the wire 702, or the power conversion unit 300 is also provided with a pad, and then the substrate 400 is soldered to the power conversion unit 300, wherein the upper surface of the substrate The 401 and the lower surface 402 are to be electrically connected to achieve electrical connection, or the wire 702 is directly passed through the substrate 400 having a hole, as shown in FIG. 4, to be directly electrically connected to the light emitting unit 500. The light emitting unit 500 can be, for example, a light emitting diode (LED). The socket 600 is connected to the lamp cup body 100 of the lamp cup module and covers the through hole H of the lamp cup body 100. The electric wire 700 is electrically connected to the other end of the power conversion unit 300, and is connected to the lamp holder 600 via the through hole H of the cup bottom 102 of the lamp cup module. The lamp holder 600 is further connected to an external power supply (not shown), and the external power supply The supplier is, for example, a household outlet or a battery that can supply power to the lighting device to illuminate. among them, The lamp holder 600 can be selectively connected to the lamp cup body 100 by means of a buckle, a lock, a screw or a glue. A connector of an insulating material can be added between the lamp holder 600 and the lamp cup body 100 (not shown). Or the lamp holder 600 and the cup wall 106 of the lamp cup body 100 are made of a material different in conductivity. For example, the cup wall 106 is made of a self-insulating material, and the lamp holder 600 is made of a metal material, so that the user can avoid electric shock, etc. safe question. In addition, as shown in FIG. 4, the light-emitting device of the present invention may further include a lamp cover 800 disposed on the substrate 400 to cover the light-emitting unit 500. The lampshade 800 can be, for example, a transparent or translucent cover to prevent the intensity of the light emitted by the light-emitting unit 500 from being greatly weakened by penetrating the lamp cover 800. Alternatively, the lamp cover 800 may be a cover having a wavelength conversion property to wavelength-convert the light emitted from the light-emitting unit 500 to obtain light of a specific wavelength.

In addition, as in the second preferred embodiment of the lamp cup module of the present invention, in order to improve the heat dissipation effect of the light-emitting device of the present invention, a heat dissipation layer and/or a cup wall may be coated on the inner surface of the lamp cup body. Set a heat sink fin on it. As shown in Fig. 5, it is a schematic cross-sectional view of a second preferred embodiment of the light-emitting device of the present invention. The second preferred embodiment of the illuminating device of the present invention differs from the first preferred embodiment only in that the inner surface of the lamp cup body 100 is coated with a heat dissipation layer 40 and a cup wall in the second preferred embodiment. The heat dissipation fins 50 are disposed on the 106 to improve the heat dissipation effect of the lamp cup module. The heat dissipation fins 50 can extend upward to the cover portion of the lamp cover 800, so that the heat dissipation effect can be improved by increasing the heat dissipation area. Similarly, as described above with respect to the second preferred embodiment of the lamp cup module, although the light-emitting device of FIG. 5 has both the heat dissipation layer 40 and the heat dissipation fins 50, the user can selectively set according to actual needs. At least one of the heat dissipation layer 40 and the heat dissipation fins 50. That is, in the light-emitting device of the present invention, it is not necessary to provide the heat dissipation layer 40 and the heat dissipation fins 50 at the same time.

In summary, the lamp cup module and the illuminating device of the present invention are powered by a lamp cup main The partitioning member and the bottom of the cup and the wall of the cup provide the accommodation space of the colloid and the power conversion unit, and the power conversion unit can be easily fixed in the main body of the lamp cup, thereby solving the technical problem that it is difficult to fill the glue in the conventional lamp cup; In addition, the selection of the colloid with heat dissipation properties can also improve the heat dissipation effect of the lamp cup module and the illuminating device.

The above is intended to be illustrative only and not limiting. Any equivalent modifications or alterations to the spirit and scope of the invention are intended to be included in the scope of the appended claims.

100‧‧‧light cup body

102‧‧‧ cup bottom

104‧‧‧Parts

106‧‧‧ cup wall

200‧‧‧ colloid

300‧‧‧Power Conversion Unit

S1‧‧‧First accommodation space

S2‧‧‧Second accommodating space

H‧‧‧through hole

Claims (12)

A lamp cup module includes: a lamp cup body having a cup bottom, a partition member and a cup wall enclosing the cup bottom, wherein the partition member is disposed on the cup bottom and connected to the cup wall to constitute a first An accommodating space and a second accommodating space, wherein the bottom of the cup has at least a continuous through hole communicating with the second accommodating space and the outside; a colloid is filled in the first accommodating space; and a power conversion unit is The gel is fixed in the first accommodating space. The lamp cup module of claim 1, wherein the cup bottom, the partition member and the cup wall are integrally formed. The lamp cup module of claim 1, wherein the lamp cup body is made of aluminum. The lamp cup module of claim 1, further comprising a heat dissipation layer coated on an inner surface of the body of the lamp cup. The lamp cup module according to claim 1, wherein the colloid has a thermal conductivity of between 1 and 15 W/m-k. The lamp cup module of claim 1, wherein the power conversion unit comprises at least a transformer and a capacitor. The lamp cup module of claim 1, wherein a height of the glue filled in the first accommodating space is greater than a half of a height of the power conversion unit and smaller than a height of the cup wall. The lamp cup module of claim 6, wherein the colloid has a coverage area of the transformer in the power conversion unit of greater than 60%. The lamp cup module of claim 1, further comprising a heat dissipating fin disposed on the wall of the cup. A light-emitting device comprising: a substrate; at least one light-emitting unit disposed on an upper surface of the substrate; the light cup module according to any one of claims 1 to 9, wherein the substrate is covered One of the body of the lamp cup is open, and the power conversion unit of the lamp cup module is electrically connected to the light unit; a lamp holder is connected to the lamp cup body of the lamp cup module, and the lamp cup module is covered And the at least one electric wire is electrically connected to the power conversion unit, and the lamp holder is connected through the through hole of the cup bottom of the lamp cup body. The illuminating device of claim 10, wherein the lamp holder is connected to the lamp cup body by snapping, locking, screwing or adhesive. The illuminating device of claim 10, further comprising a lamp cover disposed on the substrate to cover the illuminating unit.