CN111895281A

CN111895281A - Lamp fitting

Info

Publication number: CN111895281A
Application number: CN202010837399.4A
Authority: CN
Inventors: 庞桂兑; 王林东
Original assignee: Shenzhen Weitian Technology Co ltd
Current assignee: Shenzhen Weitian Technology Co ltd
Priority date: 2020-08-19
Filing date: 2020-08-19
Publication date: 2020-11-06

Abstract

The invention relates to a luminaire comprising: a lamp shade; and the light-emitting unit is arranged in the lampshade and comprises a substrate with a first surface and a second surface which are oppositely arranged, and the light-emitting unit also comprises a first lamp bead and a second lamp bead, wherein the first lamp bead is arranged on the first surface, and the second lamp bead is arranged on the second surface. Because first lamp pearl and second lamp pearl set up the both sides at the base plate respectively, first surface and second surface promptly, first lamp pearl is mainly at the first surface side emission light of base plate, with the space near the first surface of illuminating the base plate, second lamp pearl is mainly at the second surface side emission light of base plate, with the space near the second surface of illuminating the base plate, even consequently there is the base plate to shelter from light, the both sides of base plate also homoenergetic is lighted, consequently, the both sides that can make the base plate all produce light. Therefore, the lamp solves the problem that the traditional lamp can only emit light in a single direction, and the lamp can emit light in 360 degrees by taking the whole light emitting unit as the center.

Description

Lamp fitting

Technical Field

The invention relates to the technical field of lamps, in particular to a lamp.

Background

Light fixtures typically include fluorescent, energy saving, and LED lamps. The fluorescent lamp is a low-pressure mercury lamp, which utilizes the principle that mercury vapor with low pressure releases ultraviolet rays after being electrified, so that the fluorescent powder emits visible light to emit light, and therefore, the fluorescent lamp belongs to a low-pressure arc discharge light source. The energy-saving lamp is a compact fluorescent lamp with a ballast, when the energy-saving lamp is ignited, firstly, the filament of the lamp tube is heated by the electronic ballast, a certain amount of electronic powder is coated on the filament, electrons are emitted from the beginning of the filament, the electrons collide with argon atoms filled in the lamp tube, the argon atoms obtain energy after collision and then collide with mercury atoms in the lamp tube, the mercury atoms jump to generate ionization after absorbing the energy, and a plasma state is formed in the lamp tube.

The LED lamp is an electroluminescent semiconductor material chip, silver glue or white glue is solidified on the support, then the chip and the substrate are connected through silver wires or gold wires, the periphery of the chip is sealed through epoxy resin, the effect of protecting an internal core wire is achieved, and finally the shell is installed, so that the anti-seismic performance of the LED lamp is good.

The fluorescent lamp and the energy-saving lamp have the light source in the lamp tube, and the lamp tube can be designed into a cylindrical glass tube, so that when the fluorescent lamp and the energy-saving lamp emit light, the periphery of the light source can emit light without being shielded. The LED lamp needs to arrange the light-emitting chip on the substrate, and the substrate can shield the transmission of a light source of the light-emitting chip, so that the current LED lamp can only emit light in a single direction.

Disclosure of Invention

In view of the above, it is necessary to provide a lamp.

A light fixture, comprising:

a lamp shade; and

the light-emitting unit is arranged in the lampshade and comprises a first surface and a second surface which are oppositely arranged, the light-emitting unit further comprises a first lamp bead and a second lamp bead, the first lamp bead is arranged on the first surface, and the second lamp bead is arranged on the second surface.

In one embodiment, the substrate and the lamp housing are both annular.

In one embodiment, the first lamp beads are provided in plurality and are arranged in a ring shape; the second lamp pearl is provided with a plurality ofly, and is a plurality of the second lamp pearl is arranged along the annular.

In one embodiment, the first lamp beads are arranged at equal intervals; a plurality of the second lamp beads are arranged at equal intervals.

In one embodiment, the lamp housing is provided with a fixing device for fixing the substrate.

In one embodiment, the fixing devices are provided with a plurality of groups, and the plurality of groups of fixing devices are arranged at intervals along the extending direction of the lampshade.

In one embodiment, the fixing device comprises a supporting column and a hook arranged on the supporting column, and a groove used for avoiding the hook when the fixing device is installed is arranged on the base plate.

In one embodiment, the support columns are provided with a plurality of support columns, the support columns are respectively used for supporting two ends of the substrate, and avoidance grooves are formed between the support columns at the two ends of the substrate.

In one embodiment, the fixing device comprises a locking column and a locking piece, wherein the locking column and the locking piece are used for locking the substrate on the lampshade, a locking hole is formed in the locking column, a mounting hole is formed in the substrate, and the locking piece is used for penetrating through the mounting hole and locking the mounting hole.

In one embodiment, the lampshade comprises a first cover body and a second cover body which are buckled with each other, one of a bayonet lock or a clamping groove is arranged on the first cover body, the other of the bayonet lock or the clamping groove is arranged on the second cover body, and the bayonet lock and the clamping groove can be mutually buckled, so that the first cover body and the second cover body are fixedly connected.

Above-mentioned lamps and lanterns, because first lamp pearl and second lamp pearl set up the both sides at the base plate respectively, first surface and second surface promptly, first lamp pearl is mainly at the first surface side emission light of base plate, with the space near the first surface of illuminating the base plate, second lamp pearl is mainly at the second surface side emission light of base plate, with the space near the second surface of illuminating the base plate, even consequently there is the base plate to shelter from light, the both sides of base plate also homoenergetic are lighted, consequently, can make the both sides of base plate all produce light. Therefore, the lamp solves the problem that the traditional lamp can only emit light in a single direction, and the lamp can emit light in 360 degrees by taking the whole light emitting unit as the center.

Drawings

Fig. 1 is a schematic perspective view of a lamp according to an embodiment of the present application;

FIG. 2 is an exploded view of the lamp shown in FIG. 1 from a first viewing angle;

FIG. 3 is an exploded view of the lamp shown in FIG. 1 from a second viewing angle;

FIG. 4 is a cross-sectional view of a ring-shaped light in one embodiment of the present application;

FIG. 5 is a cross-sectional view of a luminaire in another embodiment of the present application;

fig. 6 is a schematic perspective view of a lamp according to another embodiment of the present application.

Reference numerals: 100. a lamp shade; 110. a first cover body; 111. a card slot; 120. a second cover body; 121. a bayonet lock; 200. a light emitting unit; 210. a substrate; 211. a first surface; 212. a second surface; 213. a groove; 214. mounting holes; 221. a first lamp bead; 222. a second lamp bead; 300. a drive unit; 310. an electrical connection post; 320. fixing grooves; 400. a fixing device; 410. a support pillar; 420. a hook; 430. an avoidance groove; 440. a locking post; 450. a locking hole; 510. a first space; 520. a second space.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In an embodiment of the present application, a lamp is provided, as shown in fig. 1 and fig. 2, fig. 1 is a schematic perspective structure diagram of the lamp in an embodiment of the present application, and fig. 2 is a schematic exploded structure diagram of a first viewing angle of the lamp shown in fig. 1. The lamp includes a lamp housing 100 and a light emitting unit 200 disposed in the lamp housing 100. The lamp cover 100 may be a ring-shaped lamp cover 100 as shown in fig. 1, or may be a strip-shaped lamp cover 100. The lamp housing 100 is a light-transmitting lamp housing 100 as a whole, for example, when the lamp housing 100 is annular, after the light-emitting unit 200 emits light, the light can emit light 360 ° around the light-emitting unit 200. The 360 ° illumination is understood to mean that a central light source is provided, and the area in the vicinity of the central light source can be illuminated when there is no obstruction in the vicinity of the central light source.

Fig. 3 is an exploded view of the lamp shown in fig. 1 from a second viewing angle. As shown in fig. 2 and 3, the light emitting unit 200 includes a substrate 210, the substrate 210 includes a first surface 211 and a second surface 212, which are oppositely disposed, the first surface 211 is provided with a first bead 221, and the second surface 212 is provided with a second bead 222. The substrate 210 is used for supplying power to the first lamp bead 221 and the second lamp bead 222 so as to light the first lamp bead 221 and the second lamp bead 222. Because the first lamp bead 221 and the second lamp bead 222 are respectively disposed on two sides of the substrate 210, that is, the first surface 211 and the second surface 212, the first lamp bead 221 mainly emits light on the first surface 211 side of the substrate 210 to illuminate the space near the first surface 211 of the substrate 210, and the second lamp bead 222 mainly emits light on the second surface 212 side of the substrate 210 to illuminate the space near the second surface 212 of the substrate 210, even if the substrate 210 is opaque, that is, there is a light shielding of the substrate 210, since the light sources are disposed on two sides of the substrate 210, two sides of the substrate 210 can be illuminated, and thus, two sides of the substrate 210 can both generate light.

Further, as shown in fig. 2 and 3, the lamp shade 100 includes a first cover 110 and a second cover 120, where the first cover 110 and the second cover 120 are both light-transmissive covers, and the first cover 110 and the second cover 120 enclose a tubular structure. The light emitting unit 200 is disposed between the first and

second housings

110 and 120. The light emitting unit 200 includes a first light bead 221 and a second light bead 222, where the first light bead 221 and the second light bead 222 are distinguished from the installation location, rather than from the number, for example, the first light bead 221 may be one or more, and the second light bead 222 may be one or more. Specifically, the first lamp bead 221 is disposed toward the first cover 110, and the second lamp bead 222 is disposed toward the second cover 120. The light that the lamp pearl that sets up towards the first cover body 110 sent can penetrate through the first cover body 110 and jet out, and the light that the lamp pearl that sets up towards the second cover body 120 sent can penetrate through the second cover body 120 and jet out. Since the first cover 110 and the second cover 120 enclose a tubular structure, the lamp can emit light 360 ° around the entire lamp housing 100.

The lamp bead is used as a light source, and the emitted light has the characteristics that the light intensity in the middle of the light source is highest, and the light intensity far away from the middle of the light source is gradually weakened. For two lamp beads, the light intensity at the center of the lamp bead is highest, and the light intensity at the middle position of the two lamp beads is weaker. In order to improve the uniformity of the brightness of the lamp, the lamp shade 100 can be a light-homogenizing lamp shade 100, the light-homogenizing lamp shade 100 can refract light, and the light can be superposed in the middle of two adjacent lamp beads, so that the light intensity of the middle of each lamp bead is enhanced, and the light of the lamp is more uniform. For example, the surface of the dodging lamp cover 100 is provided with a dodging layer, which may be a frosted layer, and the frosted layer can disperse light, so as to improve the uniformity of the whole LED light. In some embodiments, to improve the uniformity of the light of the lamp, a scattering structure may be disposed on the surface of the lamp cover 100, or scattering particles may be doped in the lamp cover 100. In some embodiments, phosphor may be coated on the surface of the lamp cover 100, or phosphor particles may be doped in the lamp cover 100 to change the wavelength of the light emitted from the lamp cover 100.

In one embodiment, the lampshade 100 may be made of a PC material, which is a tough thermoplastic resin with good flame retardancy and oxidation resistance. Because the lamp beads can generate heat when emitting light, the lampshade 100 made of PC material has better heat resistance, and the use safety of the lamp is improved. In some embodiments, the whole lampshade 100 may surround a hollow structure having a sealed inner cavity, and the light emitting unit 200 is disposed in the hollow structure, so that the lampshade 100 protects the light emitting unit 200 inside, thereby achieving a good dustproof effect. The lampshade 100 of the lamp in the embodiment does not need to adopt the glass lampshade 100 of the traditional incandescent lamp, and the glass lampshade 100 has larger potential safety hazard after being broken, so that the lamp in the embodiment is safer to use, namely the lampshade 100 made of the PC material has the advantages of high installation performance, good shock resistance and good shock resistance. In some embodiments, the lamp cover 100 may also be made of acrylic, and the lamp cover 100 may be filled with a milky filler, so that the lamp cover 100 is semitransparent.

As shown in fig. 2 and fig. 3, the lamp further includes a driving unit 300 electrically connected to the lamp beads on the substrate 210, and the driving unit 300 obtains a direct current voltage through rectification and filtering, so as to drive the lamp beads on the substrate 210 to emit light. For example, the driving unit 300 may be a constant voltage driving unit 300, and generally, 220V ac is input to the driving unit 300, then the ac is converted into high voltage dc of about 310V through a rectifier bridge, and then the switching tube is turned on or off at a high speed through PWM modulation, so as to form an alternating current signal, and the alternating current signal is output as an ac voltage through a high frequency transformer, and then the alternating current signal is rectified to input as a dc voltage for the lamp beads to use. In other embodiments, the driving unit 300 may also be a constant linear driving unit 300; the alternating current of 220V is usually input, and is changed into a direct current power supply to be input into the lamp bead after passing through the linear transformer, the rectifying circuit and the filter circuit.

In one embodiment, the lamp is a ring-shaped structure as a whole. I.e., the lamp housing 100 and the substrate 210 are both annular. For example, the maximum diameter of the annular lamp cover 100 may be 225 mm. As shown in fig. 2 and 3, the annular lamp housing 100 includes a semi-annular first housing 110 and a semi-annular second housing 120, as shown in fig. 4, fig. 4 is a cross-sectional view of an annular lamp in an embodiment, and after the first housing 110 and the second housing 120 are fastened, the first housing 110 and the second housing 120 enclose a tubular structure. The substrate 210 and the first cover 110 enclose a first space 510, the substrate 210 and the second cover 120 enclose a second space 520, the first lamp bead 221 is disposed on the first surface 211 of the substrate 210, and the first lamp bead 221 is located in the first space 510; the second lamp bead 222 is disposed on the second surface 212 of the substrate 210, and the second lamp bead 222 is located in the second space 520. The driving unit 300 is electrically connected with the first lamp bead 221 and the second lamp bead 222, thereby providing power to the first lamp bead 221 and the second lamp bead 222. After the first lamp bead 221 and the second lamp bead 222 are lighted, the first lamp bead 221 illuminates the area of the substrate 210 on the side of the first space 510, and the second lamp bead 222 illuminates the area of the substrate 210 on the side of the second space 520.

As shown in fig. 2, the driving unit 300 is formed in a semi-circular shape, the driving unit 300 is provided with an electrical connection post 310, the lamp housing 100 is provided with a through hole, and the electrical connection post 310 can protrude from the through hole of the lamp housing 100. When the lamp is installed and used, the lamp is installed on an external lamp holder, so that the electric connecting column 310 is connected with the metal contact on the lamp holder, and the lamp holder can supply power to the lamp through the electric connecting column 310.

In one embodiment, as shown in fig. 4, first surface 211 of substrate 210 faces first enclosure 110, and second surface 212 of substrate 210 faces second enclosure 120, i.e., the plane of substrate 210 extends in a horizontal direction as shown in fig. 4.

In one embodiment, as shown in fig. 5, fig. 5 is a schematic cross-sectional view of a luminaire in another embodiment of the present application. In the view shown in fig. 5, the first cover 110 is located above, the second cover 120 is located below, and the substrate 210 is vertically disposed in a space surrounded by the first cover 110 and the second cover 120. In this embodiment, the first lamp beads 221 emit light toward the left portion of the first housing 110 and the left portion of the second housing 120, and the second lamp beads 222 emit light toward the right portion of the first housing 110 and the right portion of the second housing 120.

In other embodiments, the plate surface of the substrate 210 may also be disposed in the space surrounded by the first cover 110 and the second cover 120 along other directions, for example, an included angle between the plate surface of the substrate 210 and the plate surface of the substrate 210 shown in fig. 5 in other embodiments is an acute angle.

As shown in fig. 2, the second cover 120 is provided with a fixing device 400 for fixing the substrate 210, and in other embodiments, the fixing device 400 may be provided on the first cover 110. Fixing device 400 fixes substrate 210, so that substrate 210 is prevented from shaking between first cover 110 and second cover 120 during transportation, and stability of the lamp is improved.

Specifically, as shown in fig. 2, several sets of fixing devices 400 are arranged at intervals along the extending direction of the cover, and since the substrate 210 has a longer length in the extending direction, the fixing devices 400 arranged at intervals can fix the substrate 210 together, thereby improving the stability of the substrate 210.

In one embodiment, as shown in fig. 2, the fixing device 400 includes a supporting column 410 and hooks 420 disposed on the supporting column 410, wherein the distance between the supporting column 410 and the hooks 420 is substantially equal to the thickness of the substrate 210 or slightly greater than the thickness of the substrate 210. The substrate 210 has a groove 213 corresponding to the hook 420. During assembly, the groove 213 is aligned with the hook 420, the substrate 210 is placed between the hook and the support pillar 410 after the hook 420 passes through the groove 213, and then the substrate 210 is moved to make the groove 213 of the substrate 210 shift the hook 420, so that the hook 420 hooks the edge of the substrate 210. As shown in fig. 2, the fixing device 400 further includes a locking post 440, a locking hole 450 is formed on the locking post 440, and a mounting hole 214 is formed on the substrate 210. When the base 210 is moved to make the groove 213 of the base 210 shift the hook 420, so that the hook 420 hooks the edge of the base 210, the mounting hole 214 on the base 210 can be aligned with the locking hole 450 on the locking column 440, and then the base 210 can be locked on the second cover 120 by passing the locking member through the mounting hole 214 and locking the locking hole 450. Wherein, the locking piece can be a screw or a bolt, etc.

In one embodiment, as shown in fig. 2, the fixing device 400 includes two supporting columns 410 arranged at an interval, an avoiding groove 430 is formed between the two supporting columns 410 arranged at an interval, the two supporting columns 410 are respectively supported at two ends of the substrate 210, and a lamp bead on the substrate 210 can be accommodated at the avoiding groove 430. For example, when the substrate 210 is annular, one of the supporting pillars 410 is supported at an inner circumferential edge of the annular substrate 210, and the other supporting pillar 410 is supported at an outer circumferential edge of the annular substrate 210. In some embodiments, as shown in fig. 2, the driving unit 300 is semicircular as a whole, the driving unit 300 can be installed in the avoiding groove 430, and two long sides of the driving unit 300 respectively abut against the side walls of the two supporting columns 410, so as to achieve the fixed installation of the driving unit 300. Of course, several fixing grooves 320 may be provided on the driving unit 300, and the fixing grooves 320 may be clamped to the corresponding supporting columns 410, so as to further fix the fixing circuit.

In one embodiment, as shown in fig. 2, the second cover 120 is provided with a locking pin 121, as shown in fig. 3, the first cover 110 is provided with a locking slot 111, and when the first cover 110 and the second cover 120 are combined, the locking pin 121 can extend into the locking slot 111, so as to achieve the fixed connection between the first cover 110 and the second cover 120. In other embodiments, the second cover 120 is provided with a locking groove 111, and the first cover 110 is provided with a locking pin 121 which is in locking fit with the locking groove 111.

In order to improve the strength of the lamp, the substrate 210 may be a rigid substrate 210, and the substrate 210 is a complete annular substrate 210, and the substrate 210 is not assembled by several segments of substrates 210, so that the substrate 210 has good strength and integrity.

In one embodiment, as shown in fig. 2 and 3, a plurality of first beads 221 and a plurality of second beads 222 are disposed on the substrate 210, the first beads 221 are disposed on the first surface 211 of the substrate 210 along a ring shape, and the second beads 222 are disposed on the second surface 212 of the substrate 210 along a ring shape. Further, in order to improve the uniformity of the light of the lamp, the intervals between the first lamp beads 221 are the same, and the intervals between the second lamp beads 222 are also the same. In other embodiments, the first surface 211 may be provided with a plurality of circles of the first lamp beads 221, and the second surface 212 may be provided with a plurality of circles of the second lamp beads 222. The lamp can emit light along the entire circular path of the lampshade 100, so that the light emitted by the lamp is uniform.

In one embodiment, the first lamp bead 221 and the second lamp bead 222 may be designed as lamp beads of the same color tone, for example, the first lamp bead 221 and the second lamp bead 222 are both warm lamps, or the first lamp bead 221 and the second lamp bead 222 are both cold lamps. In one embodiment, the first lamp bead 221 and the second lamp bead 222 may be designed as lamp beads with different color tones, for example, the first lamp bead 221 is a warm light lamp, and the second lamp bead 222 is a cold light lamp; or the first lamp bead 221 is a cold light lamp, and the second lamp bead 222 is a warm light lamp. In one embodiment, both a warm light lamp and a cold light lamp may be disposed on the first surface 211 of the substrate 210, and both a warm light lamp and a cold light lamp may be disposed on the second surface 212 of the substrate 210. In one embodiment, the driving unit 300 can independently control the warm light and the cold light, and when the user needs to use the warm light, the warm light is turned on and the cold light is turned off through the driving unit 300; when the user needs to use the cold light lamp, the cold light lamp is turned on and the warm light lamp is turned off by the driving unit 300.

In some embodiments, in order to enhance the heat dissipation performance of the lamp, heat dissipation holes may be formed in the lamp cover 100, or heat dissipation members may be disposed on the lamp cover 100, and the heat dissipation members may be made of metal, such as aluminum alloy, which has a fast heat conduction effect. Since the light emitting unit 200 is disposed on the substrate 210, when the lamp is turned on and the temperature on the substrate 210 is high, the heat sink may be connected to the substrate 210, so that the heat on the substrate 210 is rapidly diffused and dissipated through the heat sink.

As shown in fig. 6, fig. 6 is a schematic perspective view of a lamp in another embodiment of the present application, and the lamp includes a lamp housing 100 and a light emitting unit 200 disposed in the lamp housing 100. The light emitting unit 200 in this embodiment is integrated with the driving unit 300, that is, the light emitting unit 200 includes a substrate 210 and a first lamp bead 221 disposed on the substrate 210, and further includes the driving unit 300 integrated on the substrate 210. For example, the substrate 210 may be a circuit board.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A light fixture, comprising:

a lamp housing (100); and

the lamp shade (100) comprises a light-emitting unit (200), the light-emitting unit (200) is arranged in the lamp shade (100), the light-emitting unit (200) comprises a substrate (210) with a first surface (211) and a second surface (212) which are oppositely arranged, the light-emitting unit (200) further comprises a first lamp bead (221) and a second lamp bead (222), the first lamp bead (221) is arranged on the first surface (211), and the second lamp bead (222) is arranged on the second surface (212).

2. A luminaire as claimed in claim 1, characterized in that the base plate (210) and the lamp shade (100) are both annular.

3. A lamp as claimed in claim 1, wherein said first lamp beads (221) are provided in plurality, and said first lamp beads (221) are arranged in a ring shape; the second lamp beads (222) are arranged in a plurality of annular distribution directions, and the second lamp beads (222) are arranged in an annular distribution direction.

4. A lamp as claimed in claim 3, characterized in that a plurality of said first beads (221) are arranged at equal intervals; a plurality of second lamp pearl (222) are equidistant arranges.

5. A luminaire as claimed in claim 1, characterized in that the lamp housing (100) is provided with fixing means (400) for fixing the substrate (210).

6. A lamp as claimed in claim 5, characterized in that the fixing means (400) are provided in a plurality of groups, the groups of fixing means (400) being arranged at intervals along the extension direction of the lamp housing (100).

7. A luminaire as claimed in claim 5, characterized in that the fixing means (400) comprise a supporting pillar (410) and a catch (420) arranged on the supporting pillar (410), the base plate (210) being provided with a recess (213) for avoiding the catch (420) when mounted.

8. A lamp as claimed in claim 7, wherein the supporting columns (410) are provided in plural, the plural supporting columns (410) are respectively used for supporting two ends of the substrate (210), and an avoiding groove (430) is formed between the supporting columns (410) at two ends of the substrate (210).

9. A lamp as claimed in claim 5, wherein the fixing device (400) comprises a locking post (440) and a locking member for locking the base plate (210) to the lamp housing (100), the locking post (440) is provided with a locking hole (450), the base plate (210) is provided with a mounting hole (214), and the locking member passes through the mounting hole (214) and is locked to the locking hole (450).

10. The lamp set according to claim 1, wherein the lampshade (100) comprises a first cover body (110) and a second cover body (120) which are fastened to each other, one of a bayonet lock (121) and a bayonet lock (111) is disposed on the first cover body (110), the other of the bayonet lock (121) and the bayonet lock (111) is disposed on the second cover body (120), and the bayonet lock (121) and the bayonet lock (111) can be fastened to each other, so that the first cover body (110) and the second cover body (120) are fixedly connected.