Stable vehicle-mounted heating lens

Abstract

The utility model discloses a stable vehicle-mounted heating lens. The lens comprises a lens group which at least comprises a first lens; the lens barrel is provided with a cavity for accommodating the lens group; the lens barrel is provided with an annular groove on the outer side wall surface of the middle section area of the lens group, and the bottom of the annular groove comprises a connecting surface; the heating assembly comprises a flexible heating sheet and an electric connecting part for supplying power to the flexible heating sheet, and the flexible heating sheet is arranged on the connecting surface; the buckle comprises a fastening ring, and the fastening ring is provided with an opening end; the fastening ring is arranged on the surface side of the flexible heating sheet in a sleeving manner, and a connecting part is arranged at the opening end of the fastening ring; and the connecting part is used for fastening the fastening ring through a fastening piece. According to the utility model, the heating module is installed through the side surface of the lens barrel, the installation portability of the lens heating module is greatly improved, the heating module and the lens barrel are fixed through the fastening ring which can be rapidly assembled and disassembled, and the stability and the heating efficiency of the heating module are greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle-mounted lens technical field especially relates to a stable vehicle-mounted heating lens. BACKGROUND

[0002] The existing heating module is usually arranged on the surface of the lens compression ring. Although this design is relatively simple in structure, it has significant efficiency and performance problems. First, heat needs to be conducted through the two components of the compression ring and the lens, which inevitably causes heat loss during transmission, thereby reducing the overall heating efficiency. Second, the limited contact area between the heating module and the lens makes the heat distribution uneven, which easily causes inconsistency in the heating effect of the lens surface. This unevenness will directly affect the deicing, frost, and fog removal effect, and thus affect the optical performance and user experience of the lens.

[0003] In addition, the existing scheme also has hidden dangers in the way of directly pasting heating sheets on the surface of the lens barrel. The bonding strength between the heating sheet and the lens barrel may not be sufficient, and the heating sheet may shift or fall off due to the repeated effects of thermal expansion and contraction during long-term use. This phenomenon not only reduces the stability of heating, but also threatens the reliability of the device, increases maintenance costs and use risks. Therefore, optimizing the arrangement and fixation scheme of the heating module is of great significance to improving the heating efficiency, uniformity, and long-term stability. SUMMARY

[0004] Therefore, the utility model discloses a stable vehicle-mounted heating lens, which is installed on the side surface of the lens barrel, greatly improves the portability of the lens heating module installation, and fixes the heating module and the lens barrel through the fastening ring that can be quickly assembled and disassembled, greatly improves the stability and heating efficiency of the heating module.

[0005] According to one aspect of the utility model, a stable vehicle-mounted heating lens is provided, which includes: a lens group containing at least a first lens;

[0006] a lens barrel provided with a cavity for accommodating the lens group; the lens barrel is provided with an annular groove on the outer side wall surface of the lens group middle section area, and the bottom of the annular groove contains a connecting surface; and

[0007] a heating assembly containing a flexible heating sheet and an electrical connection part for supplying power to the flexible heating sheet, the flexible heating sheet being arranged on the connecting surface;

[0008] a fastener containing a fastening ring provided with an open end; the fastening ring is sleeved on the side surface of the flexible heating sheet, and the open end of the fastening ring is provided with a connecting part; the connecting part tightly binds the fastening ring through a fastener.

[0009] In the above technical solution, by optimizing the arrangement and fixing method of the heating assembly, the heating efficiency, uniformity and long-term stability are significantly improved. The flexible heating sheet directly fits the bottom of the annular groove of the outer lateral wall of the lens barrel, reducing the heat transfer path and improving the heating efficiency, while ensuring uniform heat distribution, effectively solving the problem of uneven heating caused by limited contact area in traditional solutions. In addition, the mechanical fixing design of the buckle (including the connecting part of the fastening ring and the open end) avoids the loosening or falling off of the heating sheet due to thermal expansion and contraction, ensuring the reliability of long-term use. The embedded design also makes the overall structure of the lens more compact, suitable for space-limited environments such as vehicle-mounted. This design not only improves the effect of ice, frost and fog removal, but also enhances the durability and practicality of the system, with high market potential.

[0010] In some embodiments, the fastening ring is made of copper.

[0011] In the above technical solution, the high thermal conductivity of copper can ensure efficient heat transfer to the environment where the lens is located, reducing heat loss and improving heating efficiency; its corrosion resistance and oxidation resistance allow it to work stably in complex environments (such as vehicle-mounted high temperature and humid environments) for a long time; the excellent mechanical properties and plasticity of copper material enable it to adapt to complex machining requirements, while maintaining the fastening effect in the environment of thermal expansion and contraction, avoiding the loosening or falling off of the heating sheet. This design not only enhances the reliability of the system, but also improves the heating uniformity and overall performance, making it particularly suitable for vehicle-mounted heating lens applications.

[0012] In some embodiments, the fastening ring and the buckle are filled with stainless steel foil.

[0013] In the above technical solution, filling with stainless steel foil can effectively block the transfer of heat to the buckle, reducing heat loss. At the same time, the corrosion resistance and mechanical stability of the stainless steel foil allow it to work stably in complex environments (such as high temperature and humid vehicle-mounted environments) for a long time, ensuring the reliability of the system under thermal expansion and contraction conditions.

[0014] In some embodiments, the flexible heating sheet and the connecting surface are filled with a thermally conductive phase change adhesive sheet.

[0015] In the above technical solution, the high thermal conductivity and phase change characteristics of the thermally conductive phase change adhesive sheet effectively improve the heat transfer efficiency, while ensuring the closer contact between the flexible heating sheet and the lens barrel, reducing thermal resistance. The thermally conductive phase change adhesive sheet can absorb or release latent heat during the heating process, acting as a temperature regulator to make the heat distribution more uniform, thereby improving the heating efficiency and uniformity. In addition, the flexibility and adhesion of the phase change adhesive sheet can also adapt to the changes of thermal expansion and contraction, ensuring the stability and reliability in long-term use, making it suitable for complex environments such as vehicle-mounted heating lenses.

[0016] In some embodiments, the ratio of the width of the buckle along the optical axis direction to the width of the groove along the optical axis direction is 0.7-0.8:1.

[0017] In the above technical solution, by controlling the ratio of the width of the buckle to the width of the groove, it is ensured that the buckle can provide sufficient mechanical support when fixing the flexible heating sheet, and at the same time, it will not excessively occupy the groove space, thereby ensuring the close fit between the heating sheet and the lens barrel. This ratio relationship enables the buckle to effectively adapt to the changes of thermal expansion and cold contraction during installation and use, avoiding the loosening or excessive compression of the heating sheet caused by the buckle being too wide or too narrow. And the heat-conducting phase-change film helps to expel air from the edge gap between the buckle and the groove during the phase change, reducing thermal resistance.

[0018] In some embodiments, the filling width of the heat-conducting phase-change film along the optical axis direction is greater than or equal to the width of the flexible heating sheet along the optical axis direction.

[0019] In the above technical solution, it is ensured that the heat-conducting phase-change film can completely cover the flexible heating sheet and extend to the edge thereof, thereby realizing efficient heat transfer and uniform distribution. The high thermal conductivity of the heat-conducting phase-change film can quickly transfer the heat generated by the heating sheet to the lens barrel, reducing thermal resistance and improving heating efficiency. At the same time, its phase change characteristic can absorb or release latent heat when the temperature changes, playing a temperature regulating role, maintaining the relative stability of the lens barrel surface temperature, effectively preventing condensation or frosting problems caused by temperature fluctuations. In addition, the filling width of the heat-conducting phase-change film being greater than or equal to the width of the heating sheet also ensures the close fit between the two, reduces heat loss, adapts to the changes of thermal expansion and cold contraction, ensures the stability and reliability in long-term use, is suitable for complex environments such as vehicle-mounted heating lenses, and can significantly improve the heating performance and system stability. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creating any creative labor.

[0021] Figure 1 is a perspective structural schematic diagram of one embodiment of a stable vehicle-mounted heating lens of the present application;

[0022] Figure 2 is a cutaway structural schematic diagram of another embodiment of a stable vehicle-mounted heating lens of the present application; wherein ① is a cutaway schematic diagram in A-A direction, Figure 1 of the figure, ② is a cutaway schematic diagram in B-B direction of the figure. Figure 1 of the figure. DETAILED DESCRIPTION

[0023] The utility model will be described in further detail below in connection with the drawings and embodiments. It is particularly pointed out that the following embodiments are only used for illustrating the utility model, but do not limit the scope of the utility model. Similarly, the following embodiments are only part of the embodiments of the utility model rather than all the embodiments, and all other embodiments obtained by the ordinary skilled in the art without making creative efforts belong to the scope of the utility model protection.

[0024] The utility model provides a stable vehicle-mounted heating lens, install heating module through the side of lens barrel, greatly improve the portability of lens heating module installation, the heating module is fixed with the lens barrel through the fastening ring of quick assembly and disassembly, greatly improve the stability and heating efficiency of heating module.

[0025] One of the embodiments

[0026] Please refer to Figure 1 A stable vehicle-mounted heating lens, comprising:

[0027] A lens group, at least containing a first lens 2;

[0028] A lens barrel 4 is provided with a cavity accommodating the lens group;The outer side wall surface of the lens group in the middle section area is provided with an annular groove 41, and the bottom of the annular groove 41 contains a connecting surface 411;The first lens 2 is fixed to the most front end of the lens barrel 4 through the compression ring 1, and the image side diameter of the lens barrel 4 and the first lens 2 is also provided with an O-shaped sealing ring 3. and,

[0029] A heating assembly 5, the heating assembly contains a flexible heating sheet 51 and the power supply of the flexible heating sheet electric connection part 52, the flexible heating sheet 51 is arranged on the connecting surface 411;

[0030] A fastener 6, the fastener contains a fastening ring 61, the fastening ring 61 is provided with an open end 611;The fastening ring sleeve 61 is arranged on the side of the flexible heating sheet 51, and the open end 62 of the fastening ring 61 is provided with a connecting part 62;The connecting part 62 is tightly bound with the fastening ring 61 through a fastener 63.

[0031] In this embodiment, by optimizing the arrangement and fixation of the heating assembly, the heating efficiency, uniformity and long-term stability are significantly improved. The flexible heating sheet directly adheres to the bottom of the annular groove of the outer lateral wall of the lens barrel, reducing the heat transfer path and improving the heating efficiency, while ensuring uniform heat distribution, effectively solving the problem of uneven heating caused by limited contact area in traditional solutions. In addition, the mechanical fixation design of the buckle (including the fastening ring and the connecting part of the open end) avoids the loosening or falling off of the heating sheet due to thermal expansion and contraction, ensuring the reliability of long-term use. The embedded design also makes the overall structure of the lens more compact, suitable for space-limited environments such as vehicle-mounted. This design not only improves the effect of ice, frost and fog removal, but also enhances the durability and practicality of the system, with high market potential.

[0032] In this embodiment, the fastening ring 61 is made of copper. The high thermal conductivity of copper can ensure efficient heat transfer to the environment where the lens is located, reducing heat loss and improving heating efficiency; its corrosion resistance and oxidation resistance allow it to work stably in complex environments (such as vehicle-mounted high temperature and humid environment) for a long time; the excellent mechanical properties and plasticity of copper material can adapt to complex mechanical processing requirements, while maintaining the fastening effect in the environment of thermal expansion and contraction, avoiding the loosening or falling off of the heating sheet. This design not only enhances the reliability of the system, but also improves the heating uniformity and overall performance, especially suitable for vehicle-mounted heating lens application scenarios.

[0033] In this embodiment, the fastening ring 61 and the buckle 51 are filled with stainless steel foil. Filling with stainless steel foil can effectively block the transfer of heat to the buckle, reducing heat loss. At the same time, the corrosion resistance and mechanical stability of the stainless steel foil allow it to work stably in complex environments (such as high temperature and humid vehicle-mounted environment) for a long time, ensuring the reliability of the system under the condition of thermal expansion and contraction.

[0034] In this embodiment, the flexible heating sheet 51 and the connecting surface 411 are filled with a thermally conductive phase change film. By utilizing the high thermal conductivity and phase change characteristics of the thermally conductive phase change film, the heat transfer efficiency is effectively improved, while ensuring that the contact between the flexible heating sheet and the lens barrel is more tight, reducing thermal resistance. The thermally conductive phase change film can absorb or release latent heat during the heating process, acting as a temperature regulator, making the heat distribution more uniform, thereby improving the heating efficiency and uniformity. In addition, the flexibility and adhesion of the phase change film can also adapt to the changes of thermal expansion and contraction, ensuring the stability and reliability in long-term use, suitable for complex environments such as vehicle-mounted heating lenses.

[0035] In this embodiment, please refer to Figure 2The ratio of the width W1 of the buckle 6 along the optical axis OA direction to the width W2 of the groove 41 along the optical axis OA direction is 0.7-0.8:1. By controlling the ratio of the width of the buckle to the width of the groove, it is ensured that the buckle can provide sufficient mechanical support when fixing the flexible heating sheet, and it will not excessively occupy the groove space, so as to ensure the close fit between the heating sheet and the lens barrel. This ratio relationship enables the buckle to effectively adapt to the changes of thermal expansion and cold contraction during installation and use, avoiding the loosening or excessive extrusion of the heating sheet caused by the buckle being too wide or too narrow. And the heat-conducting phase change film helps to expel air from the edge gap between the buckle and the groove during the phase change, reducing thermal resistance.

[0036] In the embodiment, referring to Figure 2 The filling width of the heat-conducting phase change film (not shown in the figure) along the optical axis OA direction is greater than or equal to the width W3 of the flexible heating sheet 51 along the optical axis direction. It is ensured that the heat-conducting phase change film can completely cover the flexible heating sheet and extend to the edge thereof, so as to realize efficient heat transfer and uniform distribution. The high thermal conductivity of the heat-conducting phase change film can quickly transfer the heat generated by the heating sheet to the lens barrel, reduce thermal resistance, and improve heating efficiency. At the same time, its phase change characteristic can absorb or release latent heat when the temperature changes, play a temperature regulating role, maintain the relative stability of the surface temperature of the lens barrel, and effectively prevent condensation or frosting problems caused by temperature fluctuations. In addition, the filling width of the heat-conducting phase change film is greater than or equal to the width of the heating sheet, which can also ensure the close fit between the two, reduce heat loss, adapt to the changes of thermal expansion and cold contraction, ensure the stability and reliability in long-term use, and is suitable for complex environments such as vehicle-mounted heating lenses, can significantly improve the heating performance and system stability.

[0037] Based on the above embodiment, the present application has the following advantages:

[0038] 1. The lens barrel and the heating sheet are surface-to-surface fitted, and the copper fastening ring is used to press and fix the heating sheet (M2 bolt, nut locking), so that the heating sheet is firmly fitted with the lens barrel, and is suitable for use in complex environments such as high and low temperature and vibration, and has high stability and thermal conductivity.

[0039] 2. The structure is simple, the heating module is fixed by the fastening ring, the heating module is convenient to disassemble and repair, and the imaging quality of the lens body is not affected.

[0040] The above only describes some embodiments of the present application, and does not limit the protection scope of the present application, and any equivalent device or equivalent process conversion based on the content of the specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A stabilized vehicle-mounted heating lens, characterized by, The lens includes: a lens group comprising at least a first lens; a lens barrel provided with a cavity for accommodating the lens group; an annular groove is arranged on the outer wall surface of the lens barrel at the middle section of the lens group, the bottom of the annular groove comprises a connecting surface; and a heating assembly comprising a flexible heating sheet and an electrical connection part for supplying power to the flexible heating sheet, the flexible heating sheet is arranged on the connecting surface; a fastener comprising a fastening ring provided with an open end; the fastening ring is sleeved on the surface side of the flexible heating sheet, and the open end of the fastening ring is provided with a connecting part; the connecting part is fastened to the fastening ring by a fastener.

2. The stabilized vehicle-mounted heated lens of claim 1, wherein, The fastening ring is made of copper.

3. The stabilized vehicle-mounted heated lens of claim 1, wherein, The fastening ring and the fastener are filled with stainless steel foil.

4. The stabilized vehicle-mounted heating lens according to claim 1 or 3, wherein The flexible heating sheet and the connecting surface are filled with a heat-conducting phase-change film.

5. The stabilized vehicle-mounted heated lens of claim 4, wherein, The ratio of the width of the fastening ring along the optical axis direction to the width of the groove along the optical axis direction is 0.7-0.8:

1.

6. The stabilized vehicle-mounted heated lens of claim 4, wherein, The filling width of the heat-conducting phase-change film along the optical axis direction is greater than or equal to the width of the flexible heating sheet along the optical axis direction.

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