A work lamp with good light-guiding effect

Abstract

The utility model discloses a work lamp with good light guiding effect, which relates to the technical field of work lamps, and comprises a lamp holder, an LED light source substrate installed in the lamp holder and a lampshade covering the lamp holder, wherein a plurality of side-emitting LED lamp beads and forward-emitting LED lamp beads are arranged on the LED light source substrate, and the side-emitting LED lamp beads are arranged on the periphery of the forward-emitting LED lamp beads. A light guiding member arranged above the side-emitting LED lamp beads is also fixed on the lamp holder, and light from the plurality of side-emitting LED lamp beads is irradiated to the light guiding member, which can emit light as a whole under the irradiation of the side-emitting LED lamp beads, converting a point light source into a surface light source, and changing the propagation direction of the light through the coordinated cooperation between the side-emitting LED lamp beads and the light guiding member, so that all four sides of the light guiding member can emit light, and the light source of the side-emitting LED lamp beads is evenly diverged to the surroundings, thereby enhancing the side light emitting effect of the work lamp and facilitating increasing the illumination area.

Description

Technical Field

[0001] The utility model relates to the technical field of work lamps, in particular to a work lamp with good light guiding effect. Background Art

[0002] In the field of work lights, LED lamps have been widely used in a variety of lighting occasions because of their advantages such as high energy efficiency, long life and environmental protection. However, there are still some technical challenges in the design of LED work lights.

[0003] First, regarding the arrangement of LED lamp beads, common designs often fail to fully consider the optical characteristics of different types of LED lamp beads, resulting in the potential optical efficiency of the lamp beads not being fully utilized. For example, many designs only use forward-emitting LED lamp beads, which mainly direct light forward instead of evenly illuminating the surrounding environment. This limits the range and effect of the lighting, especially in situations where wide-angle lighting is required, such as in the workplace or outdoor activities. This design is particularly inadequate.

[0004] The utility model is proposed in view of the deficiencies in the prior art. Utility Model Content

[0005] The existing LED work light designs mentioned above usually only use forward-emitting LED lamp beads, which mainly emit light directly forward instead of evenly illuminating the surrounding environment. This leads to limited lighting range and effect, especially in situations where wide-angle lighting is required, such as in the workplace or outdoor activities, where this design is particularly insufficient technically.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] A work lamp with good light guiding effect comprises a lamp holder, an LED light source substrate installed inside the lamp holder and a lampshade covering the lamp holder, the lamp holder is hinged with a rotatable bracket assembly, the lamp holder is recessed inwardly with an assembly cavity for installing the LED light source substrate therein, the LED light source substrate is provided with a plurality of side-emitting LED lamp beads and forward-emitting LED lamp beads, the side-emitting LED lamp beads are arranged on the periphery of the forward-emitting LED lamp beads, and the lamp holder is also fixed with a light guiding member arranged above the side-emitting LED lamp beads for evenly radiating the light source of the side-emitting LED lamp beads to the surroundings.

[0008] In the work lamp with good light-guiding effect as described above, a plurality of the side-emitting LED lamp beads are evenly distributed around the edge of the LED light source substrate, and a plurality of the forward-emitting LED lamp beads are evenly distributed in the middle of the LED light source substrate.

[0009] As described above, in a work lamp with good light guiding effect, the light guiding member is a ring-shaped structure arranged just above the side-emitting LED lamp bead, and a plurality of connecting members connected to the LED light source substrate are arranged at intervals on the inner side wall of the light guiding member.

[0010] As described above, in a work lamp with good light-guiding effect, the LED light source substrate is provided with an opening through which the fastener on the connecting member passes to be fixedly connected with the inner wall of the assembly cavity.

[0011] As described above, a work lamp with good light guiding effect has a sealing groove recessed at the edge of the inner wall of the assembly cavity for the outer edge of the lampshade to be clamped therein, the outer wall of the lampshade is close to or against the inner wall of the lamp holder, and the outer wall of the light guide is close to or against the inner wall of the lampshade.

[0012] As described above, in a working lamp with good light-guiding effect, the outer wall of the lampshade is provided with a positioning protrusion protruding outward, and the outer wall of the lamp holder is provided with a positioning groove recessed inward for the positioning protrusion to be limitedly set therein.

[0013] As described above, a work lamp with good light-guiding effect is provided with a side-emitting lens corresponding to the light-guiding component and a positive-emitting lens corresponding to the forward-emitting LED lamp bead on the inner wall of the lampshade, and the positive-emitting lens is a focusing lens or a floodlight lens.

[0014] As described above, in the work lamp with good light guiding effect, the surface of the light guiding member is provided with light guiding convex patterns with uniform light distribution.

[0015] As described above, in a work lamp with good light-guiding effect, the planes where the tops of the plurality of side-emitting LED lamp beads are located are arranged at the same height, the bottom surface of the light guide is parallel to the plane where the tops of each side-emitting LED lamp bead are located, and the top surface of the light guide is parallel to the back surface of the lampshade.

[0016] As described above, a work lamp with good light-guiding effect is provided with a plurality of heat dissipation fins arranged at intervals on the back of the lamp holder.

[0017] The beneficial effects of the utility model are:

[0018] The utility model discloses a work lamp with good light guiding effect, relates to the technical field of work lamps, and comprises a lamp holder, an LED light source substrate installed in the lamp holder and a lampshade covering the lamp holder, wherein a plurality of side-emitting LED lamp beads and forward-emitting LED lamp beads are arranged on the LED light source substrate, the side-emitting LED lamp beads are arranged on the periphery of the forward-emitting LED lamp beads, and a light guiding member arranged above the side-emitting LED lamp beads is fixed on the lamp holder, and light from the plurality of side-emitting LED lamp beads is irradiated to the light guiding member, and the light guiding member can emit light as a whole under the irradiation of the side-emitting LED lamp beads, and converts the point light source into a surface light source, and the side-emitting LED lamp beads cooperate with the light guiding member to change the propagation direction of the light, so that all four sides of the light guiding member can emit light, and the light source of the side-emitting LED lamp beads is evenly diverged to the surroundings, and the light is more evenly irradiated to the lampshade, thereby enhancing the side light emitting effect of the work lamp, which is beneficial to increasing the illumination area, forming an effective illumination area, making the illumination range of the work lamp wider, and the illumination effect more ideal.

[0019] The utility model will be further described below in conjunction with the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the utility model (in a circular shape);

[0021] Figure 2 This is one of the exploded schematic diagrams of the utility model (in a circular shape);

[0022] Figure 3 This is the second exploded schematic diagram of the utility model (in a circular shape);

[0023] Figure 4 It is a front view schematic diagram of the utility model (in a circular shape);

[0024] Figure 5 for Figure 4 Schematic cross-sectional view along line AA;

[0025] Figure 6 It is a schematic diagram of the structure of the utility model (in a rectangular shape);

[0026] Figure 7 This is one of the exploded schematic diagrams of the utility model (in a rectangular shape);

[0027] Figure 8 This is the second exploded schematic diagram of the utility model (in a rectangular shape);

[0028] Fig. 9 It is a front view schematic diagram of the utility model (in a rectangular shape);

[0029] Fig.10 for Fig. 9Schematic cross-sectional view along line BB.

[0030] In the figure: 1. lamp holder; 11. assembly cavity; 12. sealing groove; 2. LED light source substrate; 21. side-emitting LED lamp beads; 22. forward-emitting LED lamp beads; 23. opening; 3. lampshade; 31. side-emitting lens; 32. forward-emitting lens; 4. light guide; 41. connecting member; 5. bracket assembly; 61. positioning protrusion; 62. positioning groove; 7. heat sink fins. DETAILED DESCRIPTION

[0031] The implementation modes of the present utility model are described in detail below in conjunction with the accompanying drawings.

[0032] like Figures 1 to 10 As shown, a work lamp with good light-guiding effect in this embodiment comprises a lamp holder 1, an LED light source substrate 2 installed inside the lamp holder 1, and a lampshade 3 covering the lamp holder 1, the lamp holder 1 is hinged with a rotatable bracket assembly 5, the lamp holder 1 is recessed inwardly with an assembly cavity 11 for installing the LED light source substrate 2 therein, the LED light source substrate 2 is provided with a plurality of side-emitting LED lamp beads 21 and forward-emitting LED lamp beads 22, the side-emitting LED lamp beads 21 are arranged on the periphery of the forward-emitting LED lamp beads 22, the lamp holder 1 is also fixed with a light guide 4 arranged above the side-emitting LED lamp beads 21, and a plurality of side-emitting LED lamp beads 21 are provided on the lamp holder 1. The light from the LED lamp beads 21 is irradiated to the light guide 4. The light guide 4 can emit light as a whole under the illumination of the side-emitting LED lamp beads 21, and the point light source is converted into a surface light source. The side-emitting LED lamp beads 21 cooperate with the light guide 4 to change the propagation direction of the light so that all four sides of the light guide 4 can emit light, and the light source of the side-emitting LED lamp beads 21 is evenly diverged to the surroundings, and the light is more evenly irradiated to the lampshade 3, thereby enhancing the lateral light output effect of the work lamp, which is beneficial to increase the illumination area, form an effective illumination area, and make the work lamp have a wider illumination range and a more ideal illumination effect, thereby eliminating the problems of dark areas and poor illumination effects on both sides of traditional work lamps.

[0033] like Figures 1 to 10 As shown, in this embodiment, a plurality of the side-emitting LED lamp beads 21 are evenly distributed around the edge of the LED light source substrate 2 , and a plurality of the forward-emitting LED lamp beads 22 are evenly distributed and arranged in the middle of the LED light source substrate 2 .

[0034] Specifically, the side-emitting LED lamp beads are evenly distributed at the edge of the LED light source substrate. This layout enables the side-emitting LED lamp beads to evenly radiate light in all directions, providing a wider angle of light coverage and effectively expanding the lighting range. At the same time, the forward-emitting LED lamp beads are evenly arranged in the middle of the LED light source substrate 2, providing concentrated direct light. This combined layout can ensure that the work lamp has sufficient lighting intensity and ensures the uniformity of light distribution.

[0035] Furthermore, this layout design combined with the light guide can produce a better light control effect. The light guide is arranged above the side-emitting LED lamp beads, which can further guide and evenly disperse the light emitted by the side-emitting LED lamp beads. As a result, the light from the side-emitting LED lamp beads and the forward-emitting LED lamp beads can be better integrated to create a more uniform and wider lighting effect.

[0036] like Figures 1 to 10 As shown, the light guide 4 of this embodiment is an annular structure arranged just above the side-emitting LED lamp bead 21 , and a plurality of connecting components 41 connected to the LED light source substrate 2 are arranged at intervals on the inner side wall of the light guide 4 .

[0037] The light guide of the present application adopts a ring-shaped structure design, which can effectively surround the side-emitting LED lamp beads, thereby better guiding and dispersing the light. The ring-shaped structure can not only cover all the side-emitting LED lamp beads, but also ensure the uniform distribution of light.

[0038] Specifically, the annular structure of the light guide can be made of a variety of materials and shapes. For example, transparent or translucent plastic materials such as polycarbonate or acrylic can be used. These materials have good optical properties and durability. The cross-section of the annular structure can be circular, elliptical or other polygonal to meet different lamp design requirements. The surface of the light guide can be specially treated, such as frosting or adding microstructures to enhance the scattering effect of light.

[0039] The design of the connecting components can also have many variations. For example, different connection methods such as snap-on, threaded or plug-in can be used to ensure a stable connection between the light guide and the LED light source substrate. The number and distribution of the connecting components can be adjusted according to the size and weight of the light guide. The material of the connecting components can be selected from metal or plastic with a certain degree of reflectivity. This not only plays a fixing role, but also reflects light to a certain extent, thereby improving light utilization.

[0040] In practical applications, the use of the annular structure of the light guide in conjunction with the side-emitting LED beads can significantly improve light distribution. When the side-emitting LED beads emit light, the light will first be captured by the annular structure of the light guide. Since the annular structure surrounds all the side-emitting LED beads, it can effectively collect light from all directions. Then, through the material properties and surface treatment of the light guide, the light will be evenly scattered and redistributed. This redistribution process can effectively eliminate hot spots or dark areas that may be generated by a single LED bead, thereby creating a more uniform and soft lighting effect in the surrounding area of ​​the lamp.

[0041] At the same time, the presence of the connecting components not only ensures the stability of the light guide, but may also play an auxiliary role in the process of light propagation. For example, if the connecting components are made of reflective materials, they can reflect part of the inward light and further increase the amount of light diverging outward. In addition, the spacing distribution of the connecting components can also affect the propagation path of the light to a certain extent, helping to create a more uniform light distribution.

[0042] like Figures 1 to 10 As shown, the LED light source substrate 2 of this embodiment is provided with an opening 23 for the fasteners on the connecting member 41 to pass through so as to be fixedly connected with the inner wall of the assembly cavity 11 .

[0043] This design opens an opening on the LED light source substrate to allow the fasteners on the connecting component to pass through and thus be fixedly connected to the inner wall of the assembly cavity. This structural design not only improves the connection stability between the connecting component and the LED light source substrate, but also simplifies the installation process, making the entire lamp structure more solid and reliable.

[0044] Specifically, the openings on the LED light source substrate are designed as through holes, and their diameter is slightly larger than the diameter of the fasteners so that the fasteners can pass through smoothly. These openings can be evenly distributed at the edge positions of the LED light source substrate, corresponding to the positions of the connecting components. The fasteners can be screws, rivets or other suitable fixing elements. When the fasteners pass through the openings and are fixedly connected to the inner wall of the assembly cavity, they not only fix the connecting components, but also firmly fix the LED light source substrate in the assembly cavity.

[0045] The advantage of this design is that it creates a multiple fixing mechanism. First, the connecting member is directly connected to the inner wall of the assembly cavity through fasteners, providing the main supporting force. Secondly, the LED light source substrate is fixed by fasteners through the opening, which increases the stability of the overall structure. Finally, since the connecting member is closely connected to the LED light source substrate, they form a whole together, further enhancing the firmness of the structure.

[0046] This fixing method not only improves the structural strength of the lamp, but also facilitates heat dissipation. Since the LED light source substrate is firmly fixed in the assembly cavity, heat can be more effectively conducted to the lamp holder, thereby improving the heat dissipation efficiency. In addition, this design is also convenient for maintenance and replacement. If the LED light source substrate needs to be replaced or other maintenance work needs to be performed, the entire structure can be easily disassembled by simply removing the fasteners.

[0047] Through this design, the present application not only solves the problem of unstable fixation of the connecting component and the LED light source substrate, but also improves the structural strength and heat dissipation efficiency of the entire lamp. Compared with the traditional method of relying solely on adhesives or simple snap-on fixation, this multiple fixing mechanism significantly enhances the durability and reliability of the lamp, and is particularly suitable for use in working environments that require frequent movement or may be subject to vibration.

[0048] like Figures 1 to 10 As shown, the inner wall edge of the assembly cavity 11 of the present embodiment is recessed with a sealing groove 12 for the outer edge of the lampshade 3 to be clamped therein, the outer wall of the lampshade 3 is close to or against the inner wall of the lamp holder 1, and the outer wall of the light guide 4 is close to or against the inner wall of the lampshade 3.

[0049] The present application can effectively improve the sealing between the lampshade and the lamp holder by providing a sealing groove at the edge of the inner wall of the assembly cavity and clamping the outer edge of the lampshade therein. At the same time, by making the outer wall of the lampshade close to or against the inner wall of the lamp holder, and the outer wall of the light guide close to or against the inner wall of the lampshade, the tightness and stability of the overall structure are further enhanced.

[0050] Specifically, the design of the sealing groove can take a variety of forms. For example, it can be a continuous annular groove or a plurality of spaced arc grooves. The depth and width of the groove can be designed accordingly according to the size of the outer edge of the lampshade to ensure that the lampshade can be firmly inserted into it. As a preferred embodiment, the cross-section of the sealing groove can be designed to be slightly smaller than the size of the outer edge of the lampshade, so that a little force is required during installation to form a tight press-fit relationship, thereby further improving the sealing effect.

[0051] The design of the outer wall of the lampshade being close to or against the inner wall of the lamp holder can further prevent dust or moisture from entering through the gap between the two. Therefore, it is possible to consider providing a flexible sealing strip or sealing ring on the outer wall of the lampshade or the inner wall of the lamp holder to form a better sealing effect when the two are in contact. Similarly, the design of the outer wall of the light guide being close to or against the inner wall of the lampshade can not only improve the stability of the overall structure, but also prevent light from leaking between the two, thereby improving the efficiency of light utilization.

[0052] Through this design, the work lamp of the present application can significantly improve the sealing performance of the lamp while ensuring a good light-guiding effect. Compared with the traditional work lamp design, the solution of the present application can effectively prevent dust and moisture from entering the interior of the lamp, extend the service life of the lamp, and improve its applicability in harsh environments. In addition, due to the compact structure, the shaking of the internal parts of the lamp can also be reduced, improving the overall stability and reliability.

[0053] Compared with the prior art, the design of this application shows obvious advantages in the following aspects: First, traditional work lamps usually only rely on simple buckles or screws to fix the lampshade, which is prone to poor sealing. However, this application significantly improves the sealing effect through the design of sealing grooves and multiple fits. Secondly, the prior art often ignores the matching relationship between the light guide and the lampshade, which may cause light leakage or structural instability. This application improves the light utilization efficiency and enhances the structural stability by making the outer wall of the light guide close to or offset the inner wall of the lampshade. Finally, the design of this application not only solves the sealing problem, but also takes into account the light guide effect and structural stability. It is a more comprehensive and efficient work lamp design solution.

[0054] like Figures 1 to 10 As shown, in this embodiment, an outwardly protruding positioning lug 61 is provided on the outer wall of the lampshade 3 , and an inwardly recessed positioning groove 62 for limiting the positioning lug 61 is provided on the outer wall of the lamp holder 1 .

[0055] This design aims to solve the problem of connection stability between the lampshade and the lamp holder. By setting a positioning protrusion on the outer wall of the lampshade and a corresponding positioning groove on the outer wall of the lamp holder, precise positioning and a firm connection between the lampshade and the lamp holder can be achieved. This structural design not only enhances the overall stability of the work lamp, but also improves the accuracy and convenience of assembly.

[0056] Specifically, the design of the positioning protrusion and the positioning groove can be implemented in many ways. For example, the positioning protrusion can be cylindrical, square or other geometric shapes, and the positioning groove is correspondingly designed as a groove that matches the shape of the positioning protrusion. The number and distribution of the positioning protrusions can be reasonably set according to the size and shape of the lampshade. Usually, multiple positioning protrusions can be evenly distributed around the periphery of the lampshade to ensure the balance and stability of the connection.

[0057] When the lampshade is installed on the lamp holder, the positioning protrusion will be accurately embedded in the positioning groove. This design not only prevents the lampshade from rotating or displacing during use, but also ensures the sealing between the lampshade and the lamp holder. Furthermore, this structural design can also assist in the rapid positioning of the lampshade, simplify the assembly process, and improve production efficiency.

[0058] Compared with the prior art, the design of the positioning protrusion and positioning groove of the present application provides many advantages. First, it solves the problem of unstable connection between the lampshade and the lamp holder in traditional work lamps, thereby improving the overall quality and service life of the product. Secondly, this design simplifies the assembly process, reduces the possibility of assembly errors, and thus improves production efficiency. Finally, through precise positioning, this design also helps to ensure a good seal between the lampshade and the lamp holder, thereby improving the dust and water resistance of the work lamp, making it more suitable for use in various environments.

[0059] like Figures 1 to 10 As shown, the inner wall of the lampshade 3 of this embodiment is respectively provided with a side-emitting lens 31 corresponding to the light guide 4 and a positive-emitting lens 32 corresponding to the forward-emitting LED lamp bead 22, and the positive-emitting lens 32 is a focusing lens or a floodlight lens.

[0060] This design can better control and optimize the distribution of light by setting different types of lenses on the inner wall of the lampshade. The side-emitting lens corresponds to the light guide, which can effectively guide and evenly disperse the light emitted by the side-emitting LED lamp beads, while the forward-emitting lens 32 corresponds to the forward-emitting LED lamp beads, and can concentrate or diffuse the light as needed by selecting a suitable lens. This combined design can make full use of the optical properties of different types of LED lamp beads to achieve a more uniform and efficient lighting effect.

[0061] The combined use of these two lenses can produce a coordinated lighting effect. The side-emitting lens is mainly responsible for providing wide-angle, uniform ambient lighting, while the front-emitting lens 32 can provide concentrated or diffused main lighting as needed. By adjusting the design parameters of the two lenses, such as curvature, thickness, surface treatment, etc., precise control of light distribution can be achieved.

[0062] The technical effects of this design are mainly reflected in the following aspects: first, it can significantly improve the efficiency of light utilization. Through the carefully designed lens system, almost all the light emitted by the LED lamp beads can be effectively utilized, reducing the waste of light. Secondly, it achieves a more uniform light distribution. The side-emitting lens ensures that the surrounding environment is evenly illuminated. Finally, this design enhances the versatility of the work light. By selecting different types of center lenses, the same work light can adapt to different lighting needs, thereby improving the practicality and adaptability of the product.

[0063] Compared with the prior art, the design of this application has obvious advantages. Traditional LED work lights usually only use a single type of lens or reflector, which makes it difficult to achieve uniform ambient lighting and concentrated main lighting at the same time. This application successfully solves this problem by combining different types of lenses. In addition, the prior art often ignores the light control of side-emitting LED lamp beads, resulting in poor light dispersion. This application specifically designs corresponding lenses for side-emitting LED lamp beads, greatly improving the utilization efficiency and uniformity of side light. This innovative design not only improves the overall lighting effect of the work lamp, but also provides greater flexibility for different lighting needs.

[0064] In other embodiments, the surface of the light guide 4 is provided with light-guiding convex patterns for uniform light distribution. With such a design, the light emitted by the side-emitting LED lamp beads can be better controlled and guided, thereby achieving a more uniform and efficient lighting effect.

[0065] Specifically, the light-guiding convex patterns on the surface of the light guide can take a variety of forms to achieve the purpose of uniform light distribution. For example, these convex patterns can be regularly arranged tiny prism structures, or they can be randomly distributed rough surface textures. The design of the convex patterns can be optimized according to specific optical requirements to achieve the best light diffusion and uniform distribution effects.

[0066] The working principle of the light-guiding convex pattern is to achieve uniform distribution of light by changing the propagation path of light. When the light emitted by the side-emitting LED lamp beads encounters the light-guiding convex pattern, part of the light will be reflected and part of the light will be refracted. This combined effect of reflection and refraction can effectively break up and redistribute the light, thereby eliminating hot spots and dark areas and achieving more uniform light distribution.

[0067] As a preferred embodiment, the light-guiding convex pattern can be in the form of a micro-prism array, which is composed of a large number of tiny prism units. This can effectively change the propagation direction of light and achieve better light diffusion effects. The micro-prism array can be formed directly on the surface of the light guide by mold injection molding or embossing, thereby simplifying the manufacturing process and reducing production costs.

[0068] By setting light-guiding convex patterns with uniform light distribution on the surface of the light guide, the work lamp of the present application can significantly improve the uniformity of lighting. Compared with traditional smooth light guides, the light guide with light-guiding convex patterns can more effectively eliminate hot spots and dark areas of light, thereby improving the comfort and practicality of lighting.

[0069] In addition, the design of the light-guiding convex pattern can also improve the light utilization efficiency of the work lamp. By optimizing the distribution of light, the loss of light can be reduced, so that more light can be effectively irradiated to the target area, which can not only improve the lighting effect, but also reduce energy consumption to a certain extent and extend the service life of LED lamp beads.

[0070] like Figures 1 to 10 As shown, the planes where the tops of the multiple side-emitting LED lamp beads 21 of this embodiment are located are arranged at the same height, the bottom surface of the light guide 4 is parallel to the plane where the tops of each side-emitting LED lamp bead 21 are located, and the top surface of the light guide 4 is parallel to the back surface of the lampshade 3.

[0071] This design effectively solves the problem of uneven light distribution by precisely controlling the positional relationship between the side-emitting LED lamp beads and the light guide. By setting the tops of multiple side-emitting LED lamp beads on the same plane, the consistency of the light source is ensured. The bottom surface of the light guide is parallel to the plane of the top of the LED lamp beads, and can evenly receive light from each lamp bead. At the same time, the top surface of the light guide is parallel to the back of the lampshade, which helps to evenly diffuse and distribute the light.

[0072] The advantage of this design is that by precisely controlling the relative positions of the various components, the uniformity of light and the lighting effect can be significantly improved. The light emitted by the side-emitting LED lamp beads is first evenly received by the light guide, and then distributed secondary through the special structure of the light guide (such as the microstructure of the surface or the optical properties of the material), and finally diffused outward evenly through the top surface parallel to the back of the lampshade.

[0073] Through this design, the work light of the present application can achieve a more uniform and soft lighting effect. Compared with the traditional design, this structure can effectively reduce the generation of light spots and dark areas and improve the uniformity of lighting.

[0074] like Figures 1 to 10 As shown, the back of the lamp holder 1 of this embodiment is provided with a plurality of heat dissipation fins 7 arranged at intervals. The plurality of heat dissipation fins are arranged at intervals to form a plurality of heat dissipation channels, thereby increasing air circulation and improving the heat dissipation effect.

[0075] By setting up heat dissipation fins, the work light of the present application can effectively solve the heat problem generated by LED lamps when working for a long time. Good heat dissipation performance can extend the service life of LED lamp beads and improve the stability and reliability of the light source. At the same time, due to the improved heat dissipation effect, higher light output can be obtained at the same power, or power consumption can be reduced at the same light output, thereby improving the overall performance of the work light.

[0076] Preferably, the support assembly 5 in this embodiment includes a support, and the lamp holder 1 is hinged on the support, and the working lamp can be rotated to illuminate different areas.

[0077] The above examples are only used to further illustrate the technical content of the utility model, so that readers can understand it more easily, but it does not mean that the implementation methods of the utility model are limited to this. Any technical extension or re-creation made based on the utility model is protected by the utility model. The protection scope of the utility model shall be based on the claims.

Claims

1. A work lamp with good light-guiding effect, characterized in that: The invention comprises a lamp holder (1), an LED light source substrate (2) installed inside the lamp holder (1), and a lampshade (3) covering the lamp holder (1); a rotatable bracket assembly (5) is hinged on the lamp holder (1); the lamp holder (1) is recessed inwardly to form an assembly cavity (11) for the LED light source substrate (2) to be installed therein; a plurality of side-emitting LED lamp beads (21) and forward-emitting LED lamp beads (22) are provided on the LED light source substrate (2); the side-emitting LED lamp beads (21) are arranged on the periphery of the forward-emitting LED lamp beads (22); and a light guide (4) is also fixed on the lamp holder (1) and is arranged above the side-emitting LED lamp beads (21) for evenly radiating the light source of the side-emitting LED lamp beads (21) to the surroundings.

2. A working lamp with good light guiding effect according to claim 1, characterized in that: A plurality of the side-emitting LED lamp beads (21) are evenly distributed around the edge of the LED light source substrate (2), and a plurality of the forward-emitting LED lamp beads (22) are evenly distributed and arranged in the middle of the LED light source substrate (2).

3. A working lamp with good light guiding effect according to claim 2, characterized in that: The light guide (4) is an annular structure arranged around the upper portion of the side-emitting LED lamp bead (21), and a plurality of connection components (41) connected to the LED light source substrate (2) are arranged at intervals on the inner side wall of the light guide (4).

4. A working lamp with good light guiding effect according to claim 3, characterized in that: The LED light source substrate (2) is provided with an opening (23) through which a fastener on the connecting member (41) passes to be fixedly connected to the inner wall of the assembly cavity (11).

5. A working lamp with good light guiding effect according to claim 1, characterized in that: A sealing groove (12) is recessed at the edge of the inner wall of the assembly cavity (11) for the outer edge of the lampshade (3) to be clamped therein; the outer wall of the lampshade (3) is close to or abuts against the inner wall of the lamp holder (1); and the outer wall of the light guide (4) is close to or abuts against the inner wall of the lampshade (3).

6. A working lamp with good light-guiding effect according to claim 1, characterized in that: An outwardly protruding positioning lug (61) is provided on the outer wall of the lampshade (3), and an inwardly recessed positioning groove (62) for limiting the positioning lug (61) therein is provided on the outer wall of the lamp holder (1).

7. A working lamp with good light-guiding effect according to claim 1, characterized in that: The inner wall of the lampshade (3) is provided with a side-light-emitting lens (31) corresponding to the light guide (4) and a positive-light-emitting lens (32) corresponding to the forward-light-emitting LED lamp bead (22), respectively. The positive-light-emitting lens (32) is a condenser lens or a floodlight lens.

8. A working lamp with good light guiding effect according to claim 1, characterized in that: The surface of the light guide member (4) is provided with light guide convex patterns with uniform light distribution.

9. A working lamp with good light-guiding effect according to claim 1, characterized in that: The planes on which the tops of the plurality of side-emitting LED lamp beads (21) are located are arranged at the same height, the bottom surface of the light guide (4) is parallel to the plane on which the tops of each of the side-emitting LED lamp beads (21) are located, and the top surface of the light guide (4) is parallel to the back surface of the lampshade (3).

10. A working lamp with good light guiding effect according to claim 1, characterized in that: The back side of the lamp holder (1) is provided with a plurality of heat dissipation fins (7) arranged at intervals.

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