A light guide for new energy vehicles

Abstract

This utility model relates to the field of new energy vehicle technology and provides a uniform light guide for new energy vehicles, including a soft light shell; a heat-conducting base fixed to the bottom of the soft light shell, a light-emitting base internally connected to the heat-conducting base, an LED bead mounted on the top of the light-emitting base, and a light-inlet guide block filling the top of the LED bead; and heat-conducting bases distributed at the bottom of the light-emitting base. The uniform light guide for new energy vehicles provided by this solution, by setting a light-inlet guide block and a heat-dissipating light guide inside the soft light shell, and by using optical-grade PMMA in the light-inlet guide block and the heat-dissipating light guide, has a good heat dissipation effect. Furthermore, the heat-conducting plate contacts the reflective backplate at the bottom of the soft light shell. When the LED bead on the light-emitting base is working, the heat-conducting pad can increase the contact heat transfer efficiency between the light-emitting base and the heat-conducting plate / base, and the heat dissipation effect is further improved by the heat dissipation fins connected to the heat-conducting plate and the heat-conducting base.

Description

Technical Field

[0001] This utility model belongs to the field of new energy vehicle technology, and in particular relates to a uniform light guide for new energy vehicles. Background Technology

[0002] The light guide in new energy vehicles is a component designed based on optical principles. Through mechanisms such as total internal reflection, scattering, or refraction, it evenly distributes the light emitted by light sources such as LEDs to a designated area, achieving a soft lighting effect without light spots or shadows. It can optimize the quality of in-vehicle lighting, improve visual comfort and safety, and reduce energy consumption through structural innovation.

[0003] Chinese patent disclosure (CN218565294U) describes a light guide with uniform surface luminescence. The patent states that it includes a light-inlet portion at the end near the light source and a light-emitting portion thereafter; the portion of the light guide near the light source is bent to the back of the light-emitting portion, and the portion on the back of the light-emitting portion includes at least the light-inlet portion; the halo of the light beam from the light source within the light guide is located within the light-inlet portion. This design eliminates light spots in the working area of ​​the light guide plate while ensuring uniform luminescence length, thus improving the aesthetics and utilization rate of the light guide plate during use.

[0004] However, the above solution hides the light spot by bending the structure, which places the LED light source in a narrow space with poor ventilation and heat accumulation, resulting in poor heat dissipation. Utility Model Content

[0005] This invention provides a light guide for new energy vehicles, aiming to solve the problem that the current method of hiding the light spot by bending the structure places the LED light source in a narrow space with poor ventilation and heat accumulation, resulting in poor heat dissipation.

[0006] This invention is implemented as follows: a light guide for new energy vehicles includes a soft-light shell; a heat-conducting base fixed to the bottom of the soft-light shell, a light-emitting base being internally engaged with the heat-conducting base, an LED being mounted on the top of the light-emitting base, and a light-inlet guide block being filled on the top of the LED; a heat-conducting base distributed at the bottom of the light-emitting base, which can dissipate heat from the LED on the light-emitting base; and a reflective backplate fixed to the bottom of the soft-light shell, the interior of which is filled with a heat-dissipating light guide, which is made of optical-grade PMMA.

[0007] Preferably, a connecting shell is fixedly connected to the bottom of the soft light shell, and two sets of limiting blocks are symmetrically fixed on the inner side of the connecting shell. The cross-section of the limiting blocks is set as a rectangular structure, and a positioning screw is threaded to the bottom of the limiting blocks.

[0008] Preferably, the heat-conducting base is threadedly connected to the positioning screw, and a support plate is vertically fixed to the top center of the heat-conducting base, with the top of the support plate being fixedly connected to the heat-conducting plate.

[0009] Preferably, a number of heat dissipation fins are fixed on the side of the support plate, the top surface shape of the heat dissipation fins is consistent with the shape of the heat conduction plate, and the heat conduction plate and the heat dissipation fins are fixedly connected.

[0010] Preferably, a heat-conducting plate is connected to the lower layer of the reflective back panel, and the shape of the heat-conducting plate is consistent with the shape of the diffused light shell.

[0011] Preferably, a limiting groove is provided at the connection between the side of the light-emitting base and the limiting block, the shape and size of the limiting groove are consistent with the shape and size of the limiting block, and the limiting groove and the limiting block are connected by insertion.

[0012] Preferably, the connection surfaces of the light-emitting base and the heat-conducting plate, as well as the heat-conducting base, are provided with heat-conducting pads.

[0013] Preferably, the top of the light guide block is connected to the heat dissipation light guide body, and the heat dissipation light guide body and the light guide block are made of the same material.

[0014] Compared with related technologies, the light guide for new energy vehicles provided by this utility model has the following beneficial effects:

[0015] Inside the diffuser housing, a light guide block and a heat dissipation light guide are set. The light guide block and the heat dissipation light guide are made of optical grade PMMA, which has a good heat dissipation effect. The heat conduction plate is in contact with the reflective back plate at the bottom of the diffuser housing. When the LEDs on the light-emitting base are working, the heat conduction pad can increase the contact heat transfer efficiency between the light-emitting base and the heat conduction plate and the heat conduction base. Then, the heat dissipation effect is improved by the heat dissipation fins connected to the heat conduction plate and the heat conduction base. Attached Figure Description

[0016] Figure 1 This is a frontal cross-sectional view of the present invention.

[0017] Figure 2 This is a side sectional view of the present invention.

[0018] Figure 3 This is a schematic diagram of the cross-sectional structure of the connecting shell of this utility model;

[0019] Figure 4 This is a schematic diagram of the bottom structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the heat-conducting base structure of this utility model.

[0021] In the diagram: 1. Soft light shell; 101. Connecting shell; 102. Limiting block; 103. Positioning screw; 2. Heat-conducting base; 201. Support plate; 202. Heat-conducting plate; 3. Reflective back plate; 4. Heat dissipation fins; 5. Light-emitting base; 501. Lamp bead; 502. Limiting groove; 503. Heat-conducting pad; 6. Light guide block; 7. Heat dissipation light guide. Detailed Implementation

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0023] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments. Example

[0024] A preferred embodiment of the light-diffusing guide for new energy vehicles provided by this utility model is, for example... Figures 1 to 5 As shown: A light guide for new energy vehicles includes a soft light shell 1; a heat-conducting base 2 fixed to the bottom of the soft light shell 1, with a light-emitting base 5 connected inside the heat-conducting base 2, an LED bead 501 installed on the top of the light-emitting base 5, and a light-inlet guide block 6 filling the top of the LED bead 501; the heat-conducting base 2 distributed at the bottom of the light-emitting base 5, which can dissipate heat for the LED bead 501 on the light-emitting base 5; and a reflective backplate 3 fixed to the bottom of the soft light shell 1, with a heat-dissipating light guide 7 filled inside the soft light shell 1, the heat-dissipating light guide 7 being made of optical grade PMMA.

[0025] It should be noted that some existing light guides used in new energy vehicles still have certain shortcomings in actual use. In the comparison documents, the light spot is hidden by bending the structure during use, which puts the LED light source in a narrow space with poor ventilation and heat accumulation, resulting in poor heat dissipation.

[0026] In this embodiment, by connecting the heat-conducting base 2 to the light-emitting base 5, the heat-conducting base 2 can assist the light-emitting base 5 in heat dissipation. The heat dissipation light guide 7 is set as optical grade PMMA, which itself has good heat dissipation effect. Together with the light-emitting base 5 at the bottom, it can better improve the heat dissipation effect of the device.

[0027] In a further preferred embodiment of the present invention, a connecting shell 101 is fixedly connected to the bottom of the soft light shell 1, and two sets of limiting blocks 102 are symmetrically fixed on the inner side of the connecting shell 101. The cross-section of the limiting block 102 is set as a rectangular structure, and a positioning screw 103 is threadedly connected to the bottom of the limiting block 102.

[0028] In this embodiment, the positioning screw 103 facilitates the connection and combination of the heat-conducting base 2 and the connecting shell 101, while the internal limiting block 102 can play a lateral limiting role for the light-emitting base 5.

[0029] In a further preferred embodiment of this utility model, the heat-conducting base 2 is threadedly connected to the positioning screw 103, and a support plate 201 is vertically fixed in the middle of the top of the heat-conducting base 2, and the top of the support plate 201 is fixedly connected to the heat-conducting plate 202.

[0030] In this embodiment, the connection and combination of the heat-conducting base 2 and the soft light shell 1 are facilitated. The support plate 201 can increase the stability of the connection between the heat-conducting base 2 and the heat-conducting plate 202 and prevent the heat-conducting base 2 from bending in the middle.

[0031] In a further preferred embodiment of the present invention, a plurality of heat dissipation fins 4 are fixed on the side of the support plate 201. The top surface shape of the heat dissipation fins 4 is consistent with the shape of the heat conduction plate 202, and the heat conduction plate 202 is fixedly connected to the heat dissipation fins 4.

[0032] In this embodiment, the fixed heat dissipation fins 4 can increase the heat dissipation area of ​​the heat conduction plate 202, thereby improving the heat dissipation effect of the device. In addition, the heat dissipation fins 4 can also increase the strength of the heat conduction plate 202 and prevent the heat conduction plate 202 from deforming.

[0033] In a further preferred embodiment of this utility model, a heat-conducting plate 202 is connected to the lower layer of the reflective back panel 3, and the shape of the heat-conducting plate 202 is consistent with the shape of the soft light shell 1.

[0034] In this embodiment, the heat-conducting plate 202 is in contact with the reflective back plate 3, which can assist in the heat dissipation inside the diffused light shell 1 above the reflective back plate 3.

[0035] In a further preferred embodiment of the present invention, a limiting groove 502 is provided at the connection between the side of the light-emitting base 5 and the limiting block 102. The shape and size of the limiting groove 502 are consistent with the shape and size of the limiting block 102, and the limiting groove 502 and the limiting block 102 are inserted and connected.

[0036] In this embodiment, the light-emitting base 5 can be inserted into the interior of the connecting shell 101 through the engagement of the limiting groove 502 and the limiting block 102, which facilitates the installation and positioning of the light-emitting base 5.

[0037] In a further preferred embodiment of this utility model, heat-conducting pads 503 are provided on the connection surfaces of the light-emitting base 5, the heat-conducting plate 202, and the heat-conducting base 2.

[0038] In this embodiment, the thermal pad 503 can increase the contact heat transfer efficiency between the light-emitting base 5 and the heat-conducting plate 202 and the heat-conducting base 2, thereby improving the heat dissipation effect.

[0039] In a further preferred embodiment of the present invention, the top of the light guide block 6 is connected to the heat dissipation light guide body 7, and the heat dissipation light guide body 7 and the light guide block 6 are made of the same material.

[0040] In this embodiment, the same heat dissipation and light propagation effects are maintained.

[0041] In summary, the light guide block 6 and the heat dissipation light guide body 7 are set inside the soft light housing 1. The optical grade PMMA set in the light guide block 6 and the heat dissipation light guide body 7 has a good heat dissipation effect. Together with the bottom light-emitting base 5, it can further improve the heat dissipation effect of the device. When the lamp bead 501 on the light-emitting base 5 is working, the heat transfer efficiency between the light-emitting base 5 and the heat-conducting plate 202 and the heat-conducting base 2 can be increased by the heat-conducting pad 503. Then, the heat dissipation effect is improved by the heat dissipation fins 4 connected to the heat-conducting plate 202 and the heat-conducting base 2. Moreover, the heat-conducting plate 202 is also in contact with the reflective back plate 3 at the bottom of the soft light housing 1, which can also help the soft light housing 1 to dissipate heat.

[0042] It is worth noting that the circuits, electronic components, and modules involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the software and methods.

[0043] It should be understood that the disclosed apparatus can be implemented in other ways, given the several embodiments provided in this application. For example, the apparatus embodiments described above are merely illustrative; the division of units described above is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or communication connections shown or discussed may be through some interfaces; the indirect coupling or communication connections between devices or units may be telecommunications or other forms.

[0044] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.

Claims

1. A light uniformity light guide for a new energy vehicle, characterized in that, include: Soft light casing (1); A heat-conducting base (2) is fixed at the bottom of the soft light shell (1). A light-emitting base (5) is connected inside the heat-conducting base (2). An LED bead (501) is installed on the top of the light-emitting base (5). A light-guiding block (6) is filled on the top of the LED bead (501). The heat-conducting base (2) is distributed at the bottom of the light-emitting base (5), and the heat-conducting base (2) can dissipate heat from the lamp beads (501) on the light-emitting base (5); A reflective backplate (3) is fixed to the bottom of the diffuser housing (1). The interior of the diffuser housing (1) is filled with a heat dissipation light guide (7), which is set as optical grade PMMA. 2.The light uniformization guide body for a new energy vehicle of claim 1, wherein, The bottom of the soft light shell (1) is fixedly connected to a connecting shell (101). Two sets of limiting blocks (102) are symmetrically fixed on the inner side of the connecting shell (101). The cross section of the limiting block (102) is set as a rectangular structure. The bottom of the limiting block (102) is threadedly connected to a positioning screw (103). 3.The light uniformization guide body for a new energy vehicle of claim 1, wherein, The heat-conducting base (2) is threadedly connected to the positioning screw (103). A support plate (201) is vertically fixed at the top center of the heat-conducting base (2). The top of the support plate (201) is fixedly connected to the heat-conducting plate (202). 4.The light uniformization guide body for a new energy vehicle of claim 3, wherein, The side of the support plate (201) is fixed with several sets of heat dissipation fins (4). The top surface shape of the heat dissipation fins (4) is consistent with the shape of the heat conduction plate (202), and the heat conduction plate (202) is fixedly connected to the heat dissipation fins (4). 5.The light uniformization guide body for a new energy vehicle of claim 1, wherein, The reflective backplate (3) is connected to a heat-conducting plate (202) on its lower layer. The shape of the heat-conducting plate (202) is consistent with the shape of the soft light shell (1). 6.The light uniformization guide body for a new energy vehicle of claim 1, wherein, A limiting groove (502) is provided at the connection between the side of the light-emitting base (5) and the limiting block (102). The shape and size of the limiting groove (502) are consistent with the shape and size of the limiting block (102). The limiting groove (502) and the limiting block (102) are connected by insertion. 7.The light uniformization guide body for new energy vehicles of claim 1, wherein, The connection surfaces of the light-emitting base (5) and the heat-conducting plate (202) and the heat-conducting base (2) are all provided with heat-conducting pads (503).

8. The light guide for new energy vehicles as described in claim 1, characterized in that, The top of the light guide block (6) is connected to the heat dissipation light guide body (7), and the heat dissipation light guide body (7) and the light guide block (6) are made of the same material.

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