Double layer bulb

Abstract

The present invention discloses a double-layer bulb lamp, comprising a sleeve, an inner bulb, an outer bulb, and a lamp holder assembly. The inner bulb is placed inside the outer bulb, and the lamp holder assembly is installed inside the sleeve, which is beneficial to increasing the light-emitting angle, beautifying the appearance, and facilitating heat dissipation. The sleeve comprises a first part and a second part that are connected. The first part of the sleeve is wrapped in the inner bulb, and the second part of the sleeve is fixedly connected to the outer bulb. Thus, a double-layer bulb shell is constructed, so that the light generated by the light source assembly is diffused successively by the two layers of bulb shells, thereby expanding the light-emitting angle of the entire lamp and making the light emission more uniform. The connection relationship between the sleeve and the inner bulb and the outer bulb is relatively flexible, which is convenient for processing and mass production, and is conducive to large-scale promotion and application.

Description

Technical Field

[0001] The invention relates to the field of optoelectronics, and in particular to a double-layer bulb lamp. Background Art

[0002] At present, with the development of lighting technology, there are more and more types of lamps. LED lighting fixtures are becoming more and more widely used due to their advantages of high luminous efficiency, power saving and long life. They are widely used in indoor lighting, classroom lighting, industrial production night lighting and outdoor street lighting. LED bulbs are one of the commonly used products for indoor lighting. LED bulbs usually include lamp holders, lamp holder bodies, driver boards, bulbs and LED light source boards. The lamp holder is a structure connected to the external power supply on the lamp holder body. The driver board is arranged in the lamp holder body. The driver board is electrically connected to the LED light source board and is used to control the operation of the LED light source board. The LED light source board is arranged on the top of the lamp holder body and dissipates heat through the lamp holder body. The bulb cover is arranged on the lamp holder body. Since the bulb contains components such as the lamp holder body, the driver board and the LED light source board, the LED light emitting angle is inevitably limited by the design of the lamp holder body, the driver board and the LED light source board. The tight internal space often affects the design of the entire LED bulb. Therefore, it is difficult to make LED bulbs emit light evenly, that is, to ensure that light is emitted in all directions without dark areas. At the same time, it is difficult to increase the light emission angle and heat dissipation efficiency. Therefore, how to optimize the uniformity of light emission in LED lamps and increase the light emission angle and heat dissipation efficiency is still one of the key research focuses of R&D personnel.

[0003] Therefore, in view of the above existing problems, it is very meaningful to propose a solution that can increase the light-emitting angle while ensuring a good heat dissipation effect. Summary of the invention

[0004] In order to solve the problems that it is difficult to make an LED bulb emit light evenly, that is, to ensure that light is emitted in all directions without generating dark areas, and it is difficult to increase the light-emitting angle and heat dissipation efficiency, the present invention proposes a double-layer bulb lamp, comprising a sleeve, an inner bulb, an outer bulb, and a lamp holder assembly, wherein the inner bulb is placed in the outer bulb, the lamp holder assembly is installed inside the sleeve, and the sleeve comprises a first part and a second part connected to each other, the first part of the sleeve is wrapped in the inner bulb, and the second part of the sleeve is fixedly connected to the outer bulb.

[0005] Preferably, the sleeve has a circular cross section, and the diameter of the first portion of the sleeve is smaller than the second portion of the sleeve. The outer bulb and the inner bulb are easy to be mounted on the sleeve like this.

[0006] Preferably, the middle section of the sleeve is provided with at least one step, and the inner bulb is fixed on the sleeve via the step. The inner bulb is fixedly connected to the sleeve by one or more methods such as gluing, snapping, and threading.

[0007] Preferably, the surface of the inner bulb is flush with the exposed surface of the sleeve, which makes installation easier.

[0008] Preferably, the second part of the sleeve and the outer bulb are connected by at least one of gluing, snapping or threading, so that the outer bulb is easy to install on the sleeve and is convenient for connection.

[0009] Preferably, it also includes a light source assembly, which is fixedly mounted on the first part of the sleeve and is located in the space formed by the sleeve and the inner bulb. Therefore, the light source assembly is not only installed on the bottom surface of the first part, but can also be installed in the space formed by the side of the sleeve and the inner bulb, thereby greatly increasing the light emitting angle of the entire lamp, and the light is doubly diffused through the inner bulb and the outer bulb, making the light emission more uniform. Moreover, the light source assembly can be integrated or split.

[0010] Preferably, the light source assembly comprises a bottom light source, and the bottom light source is mounted on the bottom surface of the first portion of the sleeve.

[0011] Preferably, the light source assembly further comprises a side light source, and the side light source is installed in a space formed by the side surface of the sleeve and the inner bulb.

[0012] Preferably, the light source assembly further includes an angular light source, which is installed at the edge of the bottom surface of the first part of the sleeve and forms a certain inclination angle with the bottom surface of the first part of the sleeve. By setting a plurality of light sources in different directions, the light emitting angle of the whole lamp is increased.

[0013] Preferably, it further comprises a driving assembly, which is fixedly installed between the lamp head assembly and the bottom light source, and is electrically connected to the light source assembly to control the operation of the light source assembly.

[0014] Preferably, it also includes a heat sink and a fixed plastic part, wherein the heat sink is installed between the driving assembly and the bottom light source, and the fixed plastic part is installed between the driving assembly and the heat sink. The heat sink is used to dissipate heat from the bottom light source and the driving assembly. The fixed plastic part is used to fix the sleeve, the heat sink and the bottom light source together.

[0015] Preferably, the lamp holder assembly includes a lamp holder and a lamp holder plastic part, wherein the lamp holder is mounted at one end of the lamp holder plastic part, and the driving assembly is mounted at the other end of the lamp holder plastic part. The lamp holder is used to connect to an external power source, and the lamp holder plastic part is used to wrap the driving assembly to increase heat dissipation and support the lamp holder.

[0016] Preferably, the lamp cap is arranged inside the first part of the sleeve, so that the lamp cap is hidden, which is beneficial to beautify the appearance and increase the light-emitting angle.

[0017] Preferably, the outer bulb has a spherical shape with an opening on one side, so that the appearance is beautiful.

[0018] The present invention proposes a double-layer bulb lamp, comprising a sleeve, an inner bulb, an outer bulb, and a lamp holder assembly. The inner bulb is placed inside the outer bulb, and the lamp holder assembly is installed inside the sleeve, which is beneficial to increasing the light-emitting angle, beautifying the appearance, and facilitating heat dissipation. The sleeve comprises a first part and a second part that are connected. The first part of the sleeve is wrapped in the inner bulb, and the second part of the sleeve is fixedly connected to the outer bulb. Thus, a double-layer bulb shell is constructed, so that the light generated by the light source assembly is diffused successively by the two layers of bulb shells, thereby expanding the light-emitting angle of the entire lamp and making the light emission more uniform. The connection relationship between the sleeve and the inner bulb and the outer bulb is relatively flexible, which is convenient for processing and mass production, and is conducive to large-scale promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are included to provide a further understanding of the embodiments and are incorporated into and constitute a part of this specification. The accompanying drawings illustrate the embodiments and are used together with the description to explain the principles of the present invention. It will be easy to recognize other embodiments and many expected advantages of the embodiments because they become better understood by reference to the following detailed description. The elements of the accompanying drawings are not necessarily to scale with each other. The same reference numerals refer to corresponding similar parts.

[0020] Figure 1 is a cross-sectional view of a double-layer bulb lamp according to an embodiment of the present invention;

[0021] Figure 2 It is a structural explosion diagram of a double-layer bulb lamp according to an embodiment of the present invention;

[0022] Figure 3 This is an appearance diagram of a double-layer bulb lamp according to an embodiment of the present invention. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] In the following detailed description, reference is made to the accompanying drawings, which form a part of the detailed description and are shown by illustrative specific embodiments in which the present invention can be put into practice. To this end, directional terms, such as "top", "bottom", "left", "right", "up", "down", etc., are used with reference to the orientation of the figures described. Because the parts of the embodiments can be positioned in several different orientations, directional terms are used for the purpose of illustration and are by no means limiting. It should be understood that other embodiments may be utilized or logical changes may be made without departing from the scope of the present invention. Therefore, the following detailed description should not be adopted in a limiting sense, and the scope of the present invention is defined by the appended claims.

[0025] The embodiment of the present invention provides a double-layer bulb lamp, such as Figure 1 As shown, it includes a sleeve 1, an inner bulb 2, an outer bulb 3, and a lamp cap assembly 4. The inner bulb 2 is placed in the outer bulb 3, and the lamp cap assembly 4 is installed inside the sleeve 1. In a preferred embodiment, as shown in FIG. Figure 2 As shown, the lamp cap assembly 4 and the sleeve 1 can be directly fixedly connected by screws 5. The sleeve 1 includes a first part 6 and a second part 7 connected to each other. The sleeve 1 is a cylinder with a circular cross-section, and the diameter of the first part 6 of the sleeve 1 is smaller than that of the second part 7 of the sleeve 1. The first part 6 of the sleeve 1 is wrapped in the inner bulb 2, and the second part 7 of the sleeve 1 is fixedly connected to the outer bulb 3. The middle section of the sleeve 1, that is, the part where the first part 6 and the second part 7 of the sleeve 1 are connected, is provided with at least one step 8, and the inner bulb 2 is fixed on the sleeve 1 via the step 8. On the step 8, one or more of the methods of gluing, snap-fitting, threading, etc. can be used to fix the inner bulb 2 and the sleeve 1. In a preferred embodiment, a plurality of snap-fitting protrusions 9 can be provided on the outer side of one of the steps 1, and a plurality of matching clips 10 are provided at the corresponding positions on the inner side of the inner bulb 2, and the sleeve 1 and the inner bulb 2 are snap-fitted by the matching of the snap-fitting protrusions 9 and the matching clips 10. In other embodiments, other fixed connection methods can also be used to fix the sleeve 1 and the inner bulb 2. In a preferred embodiment, the surface of the inner bulb 2 is flush with the exposed surface of the sleeve 1, that is, the side of the inner bulb 2 is flush with the side of the second part 7 of the sleeve 1. This arrangement makes the entire lamp more beautiful and is also beneficial to the propagation of side light without being hindered by the second part 7 of the sleeve 1, so that the luminous angle of the entire lamp can be larger.

[0026] In another embodiment, the second part 7 of the sleeve 1 and the outer bubble 3 are connected by at least one of gluing, snapping or threading. In a preferred embodiment, a circle of glue groove 11 may be provided on the outer bubble 3, and the second part 7 of the sleeve 1 includes a boss 12 that cooperates with the glue groove 11, the glue groove 11 is used to accommodate glue, and the boss 12 can be a discontinuous boss 12, which is used to store glue so as to increase the glue amount of the outer bubble 3 and the sleeve 1. A plurality of plastic bubble buckles 13 can also be provided under the boss, and when the outer bubble 3 is made of plastic material, the two methods of snapping and gluing are used to achieve the fixed connection between the outer bubble 3 and the sleeve 1 at the same time. The inner bubble 2 and the outer bubble 3 can be made of glass, plastic and other materials, and the sleeve 1 can be made of glass, plastic, metal and other materials. The inner bubble 2 and the outer bubble 3 are preferably made of transparent materials.

[0027] like Figure 2 As shown, the double-layer bulb lamp also includes a light source assembly 14, a driving assembly 15, a heat sink 16, and a fixed plastic part 17. The light source assembly 14 is fixedly mounted on the first part 6 of the sleeve 1 and is located in the space formed by the sleeve 1 and the inner bulb 2. Therefore, the light source assembly 14 is not only installed on the bottom surface of the first part 6, but can also be installed in the space formed by the side of the sleeve 1 and the inner bulb 2, thereby greatly increasing the light emitting angle of the entire lamp, and the light is doubly diffused through the inner bulb 2 and the outer bulb 3, making the light emission more uniform. Moreover, the light source assembly 14 can be integrated or split.

[0028] In one embodiment, the light source assembly 14 includes a bottom light source 141 , which is mounted on the bottom surface of the first portion 6 of the sleeve 1 .

[0029] In another embodiment, the light source assembly 14 includes a side light source 142 , and the side light source 142 is installed in a space formed by a side surface of the sleeve 1 and the inner bulb 2 .

[0030] In another embodiment, the light source assembly 14 may further include an angle light source 143 . The angle light source 143 is installed at the edge of the bottom surface of the first portion 6 of the sleeve 1 and forms a certain inclination angle with the bottom surface of the first portion 6 of the sleeve 1 .

[0031] Therefore, it is also possible to combine one or more of the bottom light source 141, the side light source 142, and the corner light source 143 to achieve the setting of light sources in various directions by using an integrated or split connection method to increase the light-emitting angle of the entire lamp.

[0032] In a preferred embodiment, Figure 2As shown, the light source assembly 14 includes a substrate 18, and a side light source 142, an angle light source 143, and a bottom light source 141 installed on the substrate 18. The substrate 18 can be manufactured by an integrated molding method to form the bottom, side, and bottom edge substrates 18, or it can be split to connect the bottom, side, and bottom edge substrates 18, such as screw connections. The light emitted by the light source assembly 14 directly irradiates the inner bulb 2, and the light is reflected, refracted, and other optical laws by the inner bulb 2 and then emitted into the outer bulb 3. The outer bulb 3 is then reflected, refracted, and other optical laws and then emitted into the lighting place. The side light source 142 and the bottom light source 141 are fixed to the sleeve 1 by screws.

[0033] The driving assembly 15 is fixedly installed between the lamp head assembly 4 and the bottom light source 141. The driving assembly 15 is electrically connected to the light source assembly 14 to control the operation of the light source assembly 14. The heat sink 16 is installed between the driving assembly 15 and the bottom light source 141, and the fixed plastic part 17 is installed between the driving assembly 15 and the heat sink 16. The heat sink 16 is used to dissipate heat for the bottom light source 141 and the driving assembly 15. The bottom light source 141 is relatively concentrated and is close to the driving assembly 15, so it is necessary to increase the heat dissipation through the heat sink 16. The distribution of the side light source 142 and the corner light source 143 is relatively dispersed, which is conducive to heat dissipation. The fixed plastic part 17 fixes the sleeve 1, the heat sink 16 and the bottom light source 141 together by screws 5. Therefore, the integration is high and it is easy to process.

[0034] The lamp holder assembly 4 includes a lamp holder 41 and a lamp holder plastic part 42. The lamp holder 41 is installed at one end of the lamp holder plastic part 42, and the driving assembly 15 is installed at the other end of the lamp holder plastic part 42. The AC power is connected to the driving assembly 15 through the lamp holder assembly 4, and the driving assembly 15 converts the AC power into direct current for the light source assembly 14 to emit light. The lamp holder 41 is used to connect to an external power source, and the lamp holder plastic part 42 is used to wrap the driving assembly 15 to increase heat dissipation and support the lamp holder 41. The lamp holder 41 is arranged inside the first part 6 of the sleeve 1. Therefore, the lamp holder 41 can be truly hidden, which is beneficial to beautify the appearance, and the lamp holder assembly 4 does not hinder the light propagation of the light source, which is beneficial to increase the light-emitting angle.

[0035] In a preferred embodiment, Figure 3 As shown, the outer bulb 3 has a spherical shape with an opening on one side. And the glue groove 11 can be set at the opening of the outer bulb 3, so that the appearance of the whole lamp is more beautiful. Of course, the outer bulb 3 can also be designed into other shapes according to other needs.

[0036] The present invention proposes a double-layer bulb lamp, comprising a sleeve 1, an inner bulb 2, an outer bulb 3, and a lamp cap assembly 4. The inner bulb 2 is placed in the outer bulb 3, and the lamp cap assembly 4 is installed inside the sleeve 1, which is conducive to increasing the light-emitting angle, beautifying the appearance, and facilitating heat dissipation. The sleeve 1 comprises a first part 6 and a second part 7 connected to each other. The first part 6 of the sleeve 1 is wrapped in the inner bulb 2, and the second part 7 of the sleeve 1 is fixedly connected to the outer bulb 3. Thus, a double-layer bulb shell is constructed, so that the light generated by the light source assembly 14 is diffused successively by the two layers of bulb shells, the light-emitting angle of the whole lamp is expanded, and the light emission is made more uniform. The sleeve 1 is also conducive to the heat dissipation of the light source assembly 14, so that on the basis of obtaining a large light-emitting angle and an invisible lamp cap, a very good heat dissipation effect can be guaranteed. The connection relationship between the sleeve 1 and the inner bulb 2 and the outer bulb 3 is relatively flexible and convenient, which is convenient for processing and mass production, and is conducive to large-scale promotion and application.

[0037] The above describes the specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

[0038] In the description of the present application, although the various steps are listed in a certain order in the method claims, these steps are not necessarily performed in the listed steps, but can be performed in opposite or parallel ways without departing from the spirit and purpose of the present invention. The wording 'comprising' does not exclude the presence of elements or steps not listed in the claims. The wording 'one' or 'an' in front of an element does not exclude the presence of a plurality of such elements. The simple fact that certain measures are recorded in mutually different dependent claims does not indicate that a combination of these measures cannot be used for improvement. Any reference symbols in the claims should not be interpreted as limiting the scope.

Claims

1. A double-layer bulb lamp, comprising a sleeve, an inner bulb, an outer bulb, and a lamp cap assembly, wherein the inner bulb is placed inside the outer bulb, characterized in that: The lamp cap assembly is installed inside the sleeve, and the sleeve includes a first part and a second part which are connected, the first part of the sleeve is wrapped in the inner bulb, the second part of the sleeve is fixedly connected to the outer bulb, the sleeve has a circular cross-section, and the diameter of the first part of the sleeve is smaller than that of the second part of the sleeve, at least one step is provided in the middle section of the sleeve, the inner bulb is fixed on the sleeve via the step, and the surface of the inner bulb is flush with the exposed surface of the sleeve; It also includes a light source assembly, which is fixedly mounted on the first part of the sleeve and is located in the space formed by the sleeve and the inner bubble. The light source assembly includes a bottom light source, which is mounted on the bottom surface of the first part of the sleeve. The light source assembly also includes a side light source, which is mounted on the side of the sleeve and in the space formed by the inner bubble. The light source assembly also includes a corner light source, which is mounted at the edge of the bottom surface of the first part of the sleeve and forms a certain inclination angle with the bottom surface of the first part of the sleeve.

2. The double-layer bulb according to claim 1, characterized in that: The second part of the sleeve and the outer bulb are connected by at least one of gluing, snapping or threading.

3. The double-layer bulb lamp according to claim 1, characterized in that: It also includes a driving component, which is fixedly installed between the lamp head component and the bottom light source.

4. The double-layer bulb lamp according to claim 3, characterized in that: It also includes a heat sink and a fixed plastic part. The heat sink is installed between the driving component and the bottom light source, and the fixed plastic part is installed between the driving component and the heat sink.

5. The double-layer bulb lamp according to claim 3, characterized in that: The lamp holder assembly comprises a lamp holder and a lamp holder plastic part. The lamp holder is mounted on one end of the lamp holder plastic part, and the driving assembly is mounted on the other end of the lamp holder plastic part.

6. The double-layer bulb lamp according to claim 5, characterized in that: The lamp cap is arranged inside the first portion of the sleeve.

7. The double-layer bulb lamp according to claim 1, characterized in that: The outer bulb has a spherical shape with an opening on one side.

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