Illuminating device and range hood applying same

Abstract

The utility model discloses a lighting device and a range hood applying the lighting device, and the lighting device comprises a lamp panel which comprises a PCB (Printed Circuit Board) substrate and lamp beads arranged on the PCB substrate; the lamp shell comprises a shell body with an opening in one side, and the lamp panel is arranged in the shell body; the outgoing line is electrically connected with the PCB substrate; the end wall of one end in the length direction of a shell body of the lamp shell is a wire outlet end, a wire outlet is formed in the wire outlet end, and the outgoing wire is led out from the wire outlet. In the height direction of the lamp shell, the wire outlet end is divided into a first wall part and a second wall part, the first wall part is close to the top of the shell, the second wall part is close to the lampshade, the wire outlet is formed in the first wall part, and the draft value of the first wall part is larger than that of the second wall part.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of lighting device, and range hood applied with the lighting device. BACKGROUND

[0002] Range hood is essential for every family kitchen appliance, its function is through the impeller of high-speed rotation in volute and is sucked into from air inlet, filter oil fume using impeller, and filtered oil fume is discharged from air outlet, complete kitchen air purification work, and reasonable air inlet is conducive to improving oil fume extraction effect, reducing oil fume escape, improving kitchen air quality.

[0003] Lighting device is as the basic configuration of range hood, generally set below the smoke hood, frame side plate or fan cover. Currently commonly used long strip LED lamp as lighting device, such as the lighting device disclosed in Chinese patents with application numbers 201320454037.2, 201721239616.X, its outlet is placed at one end of length direction.

[0004] This lighting device, length direction whole surface large angle draw mould, limit the length of PCB board and the distance of lamp bead from LED lamp end, make LED lamp end dark area more, affect whole lamp quality feeling;LED lamp and the other end of outlet opposite adopt symmetrical large angle draw mould, limit the arrangement of lamp bead, can further increase the distance of lamp column from end;LED lamp adopts symmetrical arrangement mode of equidistant stack, further increase the distance of most marginal lamp bead from LED lamp end. SUMMARY

[0005] The first technical problem to be solved by the utility model is to provide a lighting device to reduce dark area and improve lighting effect.

[0006] The second technical problem to be solved by the utility model is to provide a range hood applied with the above lighting device.

[0007] The technical scheme adopted by the utility model to solve the above first technical problem is as follows:

[0008] The lamp plate comprises a PCB substrate and lamp beads arranged on the PCB substrate.

[0009] The lamp shell comprises a shell with one side open, and the lamp plate is arranged in the shell.

[0010] The lead wire is electrically connected with the PCB substrate.

[0011] One end wall of the shell length direction of the lamp shell is a wire outlet end, a wire outlet is arranged on the wire outlet end, and the lead-out wire is led out from the wire outlet; along the height direction of the lamp shell, the wire outlet end is divided into a first wall part and a second wall part, the first wall part is close to the top of the shell, and the second wall part is close to the lampshade, the wire outlet is arranged on the first wall part, and the draft value of the first wall part is greater than that of the second wall part.

[0012] By arranging the local large-angle draft and the overall small-angle draft, the shell can be smoothly demolded, the distance between the lamp panel and the two ends of the lamp shell is not affected, the PCB substrate can be as long as possible in the limited space, the distance between the most marginal lamp bead and the end of the lamp shell is minimized, and the dark area is minimized.

[0013] Further, to avoid affecting the distance between the most marginal lamp bead and the end of the lamp shell, the lead-out wire passes through the back of the PCB substrate and is welded on the front of the PCB substrate, and the welding position of the lead-out wire and the PCB substrate is located between the two lamp beads close to the end of the PCB substrate.

[0014] Preferably, the end opposite to the wire outlet end in the shell length direction is a non-wire outlet end, and the draft value of the non-wire outlet end is smaller than that of the first wall part of the wire outlet end.

[0015] Further, the lamp beads on the PCB substrate are equidistantly arranged along the length direction of the PCB substrate, the distance between the most marginal lamp bead close to the non-wire outlet end and the center of the lampshade is greater than that between the most marginal lamp bead close to the wire outlet end and the center of the lampshade, so that the light-emitting area in the length direction of the lampshade is the longest, and the light-emitting effect is the best.

[0016] Further, the shell of the lamp shell is formed with an ultrasonic wave rib for ultrasonic welding on the open side, the lampshade is formed with a limiting groove at the position corresponding to the ultrasonic wave rib, and the ultrasonic wave rib is clamped into the limiting groove, so that the shell and the lampshade can be effectively limited.

[0017] Further, to reduce the dark area, the distance between the inner side of the limiting groove and the edge of the outer periphery of the lampshade is 3-4 mm.

[0018] To further facilitate the smooth demolding of the shell, a first chamfer is formed on the outer side of the upper edge of the wire outlet of the first wall part, and a second chamfer is formed on the inner side of the lower edge of the wire outlet of the first wall part.

[0019] The technical solution for solving the above-mentioned second technical problem is that a range hood is characterized in that the lighting device is applied.

[0020] Preferably, the range hood comprises a smoke collecting hood as a mounting basis of the lighting device.

[0021] Compared with the prior art, the shell can be smoothly demolded, and the distance between the lamp panel and the lamp shell ends is not affected, so that the PCB substrate can be as long as possible in the limited space, thereby minimizing the distance between the most marginal lamp bead and the lamp shell end to minimize the dark area. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 FIG. 1 is a schematic view of the installation state of the lighting device of the present application and the installation base outside;

[0023] Figure 2 FIG. 2 is a sectional view of the installation state of the lighting device of the present application and the installation base outside;

[0024] Figure 3 FIG. 3 is a partial I enlarged schematic view of the lighting device of the present application; Figure 2

[0025] Figure 4 FIG. 4 is a sectional front view of the installation state of the lighting device of the present application and the installation base outside;

[0026] Figure 5 FIG. 5 is a partial II enlarged schematic view of the lighting device of the present application; Figure 4

[0027] Figure 6 FIG. 6 is an exploded structural schematic view of the lighting device of the present application;

[0028] Figure 7 FIG. 7 is a partial III enlarged schematic view of the lighting device of the present application; Figure 6

[0029] Figure 8 FIG. 8 is a sectional side view of the installation state of the lighting device of the present application and the installation base outside (the section is perpendicular to the direction of the arrow A); Figure 4

[0030] Figure 9 FIG. 9 is a schematic view of a range hood to which the lighting device of the present application is applied. DETAILED DESCRIPTION

[0031] ​​​​The technical solutions in the embodiments of the present specification will be described clearly and completely in the embodiments of the present specification in combination with the drawings in the embodiments of the present specification. Obviously, the described embodiments are only part of the embodiments of the present specification, rather than all the embodiments. Based on the embodiments in the present specification, all other embodiments obtained by those skilled in the art without creative work belong to the scope of the present specification.

[0032] It should be noted that the terms "first", "second" and the like in the description and claims of the present specification and the above drawings are used to distinguish similar objects, and do not necessarily indicate a specific order or a chronological sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present specification described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or server including a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0033] Various exemplary embodiments, features and aspects of the present disclosure will be described in detail below with reference to the accompanying drawings. The same reference numbers in the drawings represent functionally identical or similar elements. Although various aspects of the embodiments are shown in the drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

[0034] The word "exemplary" is used herein in the sense of being an example, illustration, or demonstration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments.

[0035] The term "and / or" herein is only a description of the association relationship between the associated objects, which means that there can be three relationships, for example, A and / or B can represent the three cases of A alone, A and B together, and B alone. In addition, the term "at least one" herein means any one of the plurality or any combination of at least two of the plurality, for example, including at least one of A, B and C can mean including any one or more elements selected from the set consisting of A, B and C.

[0036] The specific angles, heights, widths and the like given in the detailed description below are all corresponding to the corresponding measurement of the specific drawings.

[0037] In addition, for a better understanding of the present disclosure, numerous specific details are given in the following detailed description. It will be understood by those skilled in the art that the present disclosure can be practiced without certain specific details. In some instances, well-known methods, procedures, elements, and circuits have not been described in detail so as not to obscure the underlying principles of the present disclosure.

[0038] Referring to Figures 1-7 A lighting device 100 is mounted on an external mounting base, such as a mounting plate 200 as shown in the present embodiment, which serves as the mounting base of the lighting device 100, and can be part of a hood 300 of a range hood, as shown in Figure 9 .

[0039] The lighting device 100 comprises a lamp plate 1 and a lamp shell 2, the lamp shell 2 is in the shape of a long strip, and the lamp plate 1 is arranged in the lamp shell 2. The lamp shell 2 comprises a shell 21 with one side open, which is in the shape of a long strip, and a lamp shade 3 is arranged at the open side of the shell 21 so that the light emitted by the lamp plate 1 can be irradiated outward. In the case of being commonly applied to a range hood, the lamp shade 3 is located at the bottom of the lamp shell 2.

[0040] The lighting device 100 further comprises a clamping spring 4 for mounting with the mounting plate 200, the clamping spring 4 is clamped and fixed with the mounting plate 200, and is also fixed with the lamp shell 2 through a screw 41. The shell 21 of the lamp shell 2 is recessed from the top of the lamp shade 3 in the direction of the lamp shade 3 to form a screw column 22, and the screw 41 passes through the clamping spring 4 and penetrates into the screw column 22, thereby fixing the lamp shell 2 and the clamping spring 4.

[0041] The lamp plate 1 comprises a PCB substrate 11 and lamp beads 12 arranged on the PCB substrate 11, and preferably the lamp beads 12 are LED lamp beads. The PCB substrate 11 is provided with a through hole 111 at a position corresponding to the screw column 22, and the screw column 22 can partially pass through the through hole 111, thereby reducing the height waste caused by the PCB substrate 11 being placed on the bottom surface of the screw column 22, and making the overall lamp height of the lighting device 100 mainly determined by the thickness of the lamp shade 3, the uniform light distance between the PCB substrate 11 and the lamp shade 3, the gap between the top of the shell 21 of the lamp shell 2 and the PCB substrate 11, the thickness of the lamp shell 2, the thickness of the clamping spring 4, and the height of the screw 41, effectively utilizing every point of size in the overall lamp height direction, and reducing material waste and unnecessary occupation of the overall machine space.

[0042] The lamp shell 2 further comprises a buckle 23 arranged on the inner side of the top of the shell 21 away from the lamp shade 3, i.e. on the side opposite to the PCB substrate 11, and the PCB substrate 11 is provided with a clamping hole 112 arranged in a spaced manner with the outer peripheral edge of the PCB substrate 11, and the buckle 23 can pass through the clamping hole 112 and be clamped on the edge of the clamping hole 112, thereby fixing the lamp shell 2 and the PCB substrate 11, so as to reduce the process and cost of fixing by using a screw.

[0043] In order to make the buckle 23 have enough flexibility and convenient installation characteristics, the top surface of the lamp shell 2 is equal to or higher than the head 411 of the screw 41 exposed to the clamp spring 4, except for the part matched with the clamp spring 4, at least in the part where the buckle 23 is arranged (the buckle 23 is not arranged at the position interfered by the screw 41, so the part matched with the clamp spring 4 is excluded), so that the buckle 23 has the best flexibility under the existing height size (the height of the buckle 23 is as high as possible), which is convenient for production and installation.

[0044] In addition, because the PCB substrate 11 is divided into two parts, the two sides are easy to produce adhesion and not very good debris, and the middle punching (the bayonet 112 is arranged between the outer peripheral edge of the PCB substrate 11) is flat and has no debris, so the position matched with the buckle 23 is located inside the PCB substrate 11, which can prevent the buckle 23 from being matched with the two sides of the PCB substrate 11 and falling off the PCB debris, so that the lighting device 100 has no black spots and other defects under lighting.

[0045] The two sides of the shell 21 of the lamp shell 2 in the width direction are respectively provided with a limiting rib 26, and the limiting rib 26 on each side is preferably located at the middle or near the middle of the length direction of the shell 21. Each side of the limiting rib 26 in the width direction has two, each of which includes a first rib part 261 extending in the height direction of the lamp shell 2 (the height direction can be seen as the direction indicated by the arrow X shown in Figure 4 and Figure 5 The second rib part 262 is located at one end of the first rib part 261 close to the top of the shell 21, and the two first rib parts 261 are arranged in the length direction of the shell 21. The second rib parts 262 of the two limiting ribs 26 are oppositely inclined away from the lamp shade 3 until they are connected, so as to converge together and make the two limiting ribs 26 into one body, and the two limiting ribs 26 form the shape of a house as a whole.

[0046] Therefore, during the assembly of the lighting device 100, first contact with the two second rib parts 262 constituting a triangle at the top of the house, and during the falling process, because of the guiding effect, the position will be gradually aligned. Unlike two straight ribs, the contact part between the limiting gap 201 formed on the mounting plate 200 and the limiting rib 26 is deformed, so as to be forced to be installed, which causes the gap between the two ends of the lamp shell 2 and the lamp shade 3 to be uneven, affecting the overall texture.

[0047] Referring to Figure 4 and Figure 5The lighting device 100 further comprises a lead-out wire 5 electrically connected to the PCB substrate 11. One end of the shell 21 of the lamp housing 2 in the length direction is an end wall of the lead-out end 211, which is provided with a lead-out opening 24. The lead-out wire 5 is led out from the lead-out opening 24 to be connected to the control device of the range hood for power supply and control. The lead-out end 211 provided with the lead-out opening 24 is divided into a first wall part 2111 and a second wall part 2112 along the height direction of the lamp housing 2. The first wall part 2111 is close to the top of the shell 21, and the second wall part 2112 is close to the lampshade 3. The lead-out opening 24 is arranged on the first wall part 2111, and the draft angle of the first wall part 2111 is greater than that of the second wall part 2112. Preferably, the draft angle of the first wall part 2111 is 32° to facilitate the lead-out opening 24 to be upwardly and downwardly drafted, and the draft angle of the second wall part 2112 is 2° to facilitate smooth ejection without affecting the distance between the lamp panel 1 and the lamp housing 2. The PCB substrate 11 can be as long as possible in the limited space, so that the distance between the most edge lamp bead 12 and the end of the lamp housing 2 is minimized.

[0048] The first wall part 2111 is formed with a first chamfer 2113 on the outer side of the upper edge of the lead-out opening 24, and a second chamfer 2114 on the inner side of the lower edge of the lead-out opening 24, which helps to increase the distance between the mold and the upper and lower edges of the lead-out opening 24, facilitating ejection under the same draft angle.

[0049] The lead-out wire 5 is led out from the back of the PCB substrate 11 and welded on the front (the side provided with the lamp beads 12), and the position is between the two lamp beads 12, instead of being welded on the end of the PCB substrate 11, to avoid affecting the distance between the most edge lamp bead 12 and the end of the lamp housing 2.

[0050] The top of the shell 21 of the lamp housing 2 corresponding to the lead-out wire 5 is equal to or slightly lower than the head 411 of the screw 41 of the fixing spring 4 (i.e. does not exceed the head 411 of the screw 41 in the height direction), to provide space for the bending of the lead-out wire 5 and facilitate installation.

[0051] The shell 21 of the lamp housing 2 at both ends (the lead-out end and the non-lead-out end) in the length direction can be designed asymmetrically. The non-lead-out end 212 opposite to the lead-out end 211 can be designed with a small angle (such as the second wall part 2112) or a large angle draft (such as the first wall part 2111) as a whole, to facilitate the length of the PCB substrate 11.

[0052] The lamp beads 12 on the PCB substrate 11 are arranged in an equidistant asymmetric manner along the length direction of the PCB substrate 11, and the distance between the lamp beads is equidistant. The lamp beads are arranged from the end close to the wire outlet 24, and the lamp bead at the edge is arranged according to the size of the PCB substrate 11. The lamp beads are arranged equidistantly to the end away from the wire outlet. Since the lamp shell 2 at the end away from the wire outlet is designed to have a small overall angle, the distance between the lamp bead at the edge of the end 212 away from the wire outlet and the center of the lampshade 3 (measured along the length direction of the lampshade 3) is slightly greater than the distance between the lamp bead at the edge of the end 211 close to the wire outlet and the center of the lampshade 3 (measured along the length direction of the lampshade 3). In this way, the light emitting area in the length direction of the lampshade 3 is the longest, and the light emitting effect is the best.

[0053] Referring to Figure 8 The shell 21 of the lamp shell 2 is formed with an ultrasonic wave rib 25 for ultrasonic welding on the open side. The ultrasonic wave rib 25 is annular. The lampshade 3 is formed with a limiting groove 31 at the position corresponding to the ultrasonic wave rib 25, and the ultrasonic wave rib 25 can be clamped into the limiting groove 31. This double stop (the inner and outer circumferences of the ultrasonic wave rib 25 are limited by the lampshade 3) can eliminate the disadvantage that a ring rib cannot be effectively limited by the inner part of the lamp shell 2. The bottom surface of the shell 21 of the lamp shell 2 is raised to form the ultrasonic wave rib 25, so as to reduce the size of the wall surface of the limiting groove 31 of the lampshade 3 from the edge of the lampshade 3, and make the dark area around the lighting device 100 smaller. The inner side of the limiting groove 31 is preferably 3-4 mm from the outer edge of the lampshade 3, so as to ensure the reasonable size of the ultrasonic wave structure, and the inner side of the limiting groove 31 corresponds to the outer side of the wall surface of the shell 21.

[0054] In addition, a long limiting rib can be arranged inside the limiting groove 31. On the one hand, the long limiting rib limits the ultrasonic wave of the lamp shell 2, and on the other hand, the long limiting rib increases the glue space, so that the product is not easy to overflow, and thus some overflow amount can be designed, so that the ultrasonic wave effect is better. At the same time, the limiting groove 31 effectively protects the ultrasonic wave rib 25, so that the ultrasonic wave rib 25 is not easy to be corroded by oil stains and cleaning agents, and the reliability is higher and the service life is longer.

Claims

1. A lighting device, comprising: a lamp panel (1) comprising a PCB substrate (11) and lamp beads (12) disposed on the PCB substrate (11); a lamp shell (2) comprising a shell (21) with one side open, the lamp panel (1) being disposed in the shell (21); and a lead-out wire (5) electrically connected with the PCB substrate (11); characterized in that: one end wall of the shell (21) of the lamp shell (2) in the length direction is an outlet end (211), the outlet end (211) is provided with an outlet opening (24), the lead-out wire (5) is led out from the outlet opening (24); along the height direction of the lamp shell (2), the outlet end (211) is divided into a first wall part (2111) and a second wall part (2112), the first wall part (2111) is close to the top of the shell (21), and the second wall part (2112) is close to a lampshade (3), the outlet opening (24) is arranged on the first wall part (2111), and the draft value of the first wall part (2111) is greater than that of the second wall part (2112).

2. The illumination device of claim 1, wherein: The lead-out wire (5) passes through the back of the PCB substrate (11) and is welded on the front of the PCB substrate (11), and the welding position of the lead-out wire (5) and the PCB substrate (11) is between two lamp beads (12) close to the end of the PCB substrate (11).

3. The illumination device of claim 1, wherein: The end of the shell (21) opposite to the outlet end (211) in the length direction is a non-outlet end (212), and the draft value of the non-outlet end (212) is less than that of the first wall part (2111) of the outlet end (211).

4. The illumination device of claim 3, wherein: The lamp beads (12) on the PCB substrate (11) are arranged equidistantly along the length direction of the PCB substrate (11), the distance from the lamp bead (12) closest to the non-outlet end (212) to the center of the lampshade (3) is greater than that from the lamp bead (12) closest to the outlet end (211) to the center of the lampshade (3).

5. The illumination device of claim 1, wherein: The shell (21) of the lamp shell (2) is provided with ultrasonic ribs (25) for ultrasonic welding on the open side, the lampshade (3) is provided with a limiting groove (31) corresponding to the ultrasonic ribs (25), and the ultrasonic ribs (25) are clamped into the limiting groove (31).

6. The illumination device of claim 5, wherein: The inner side of the limiting groove (31) is 3-4 mm away from the outer peripheral edge of the lampshade (3).

7. The illumination device of claim 1, wherein: The first wall part (2111) is provided with a first chamfer (2113) on the outer side of the upper edge of the outlet opening (24), and is provided with a second chamfer (2114) on the inner side of the lower edge of the outlet opening (24).

8. A range hood characterized by: The lighting device according to any one of claims 1-7 is applied.

9. The hood according to claim 8, characterized in that: The range hood comprises a smoke collecting cover (300) as a mounting base of the lighting device.

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