Defogging lens structure and vehicle-mounted electronic camera

Abstract

The utility model provides a defogging lens structure and a vehicle-mounted electronic camera, the defogging lens structure comprises a lens group, the lens group comprises a first lens, and the first lens is installed at a position, close to an object side, of a lens; the structure further comprises a heating ring used for increasing the temperature of the first lens, and the heating ring is of an annular structure and is attached to the side, close to the image side, of the first lens; the power supply assembly is used for supplying power to the heating ring, and the first lens of the lens is heated through the FPC heating device in the lens, so that the effect of rapidly removing water mist in the lens is achieved (due to internal heating, the water mist in the lens can be removed within 0.5-2 minutes in the required heating time period, and the water mist in the lens can be removed within 0.5-2 minutes. Compared with an external heating scheme, the heating time is shorter, the heating effect is better, the phenomenon that water mist generated in the lens is blurred on an image display picture, consequently, imaging of the lens is affected is avoided, and external manual wiping is not needed.

Description

Technical Field

[0001] The present disclosure relates to the field of lens technology, and in particular to a defogging lens structure and a vehicle-mounted electronic camera. Background Art

[0002] Existing vehicle-mounted electronic cameras, especially reversing cameras, have one side of the lens exposed outside the vehicle and the other side inside. However, when the temperature of the side exposed outside the vehicle is much lower than that of the inside, the lens surface is prone to fogging, resulting in unclear images. Users can only get out of the vehicle to wipe the camera to make it clear, causing inconvenience and danger. Utility Model Content

[0003] The purpose of the utility model is to solve the above-mentioned problem and provide a defogging lens structure and a vehicle-mounted electronic camera.

[0004] The technical solution of the present disclosure is achieved as follows:

[0005] In a first aspect, the present disclosure provides a defogging lens structure, comprising a lens group,

[0006] The lens group includes a first lens, which is installed at a position close to the object side of the lens;

[0007] The structure further comprises:

[0008] A heating ring, used to increase the temperature of the first lens, the heating ring is an annular structure, and is attached to a side of the first lens close to the image side;

[0009] A power supply component is used to supply power to the heating coil.

[0010] In a second aspect, the present disclosure also provides a vehicle-mounted electronic camera, which adopts the above-mentioned defogger lens structure, the pressure ring is connected to the camera body, and a second sealing ring is provided on the outside of the pressure ring to prevent moisture from flowing into the camera body from the gap between the pressure ring and the camera body.

[0011] The advantages or beneficial effects of the above technical solution include at least:

[0012] 1. The first lens of the lens is heated by the FPC heating device inside the lens, so as to achieve the effect of quickly removing the water mist inside the lens (due to internal heating, the required heating time period can remove the water mist inside the lens within 0.5 to 2 minutes. Compared with the external heating solution, the heating time is shorter and the heating effect is better, avoiding the water mist inside the lens, which will cause blurring on the image display screen, thereby affecting the imaging of the lens, and no manual wiping is required outside.

[0013] 2. By adding the first sealing ring and the second sealing ring, the lens can be waterproof both externally and internally, and the waterproof level can reach l p69K.

[0014] 3. A vertical cut-off section is opened at the tail of the frame for positioning, which can facilitate the positioning and fixation of the lens on the base, making the lens focusing more convenient / more stable, and the focusing process will not shake. The design of reserved air holes on the frame structure can ensure that there is no air holding inside the lens and the ventilation is smooth, which can avoid the poor lens image caused by air holding in the lens in a high temperature environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings illustrate exemplary embodiments of the present disclosure of embodiments of the utility model and, together with the description, are used to explain the principles of the present disclosure. These drawings are included to provide a further understanding of the present disclosure, and the accompanying drawings are included in and constitute a part of this specification.

[0016] Figure 1 A schematic diagram showing the lens structure of an embodiment of the utility model;

[0017] Figure 2 The assembly diagram of the embodiment of the utility model is shown;

[0018] Figure 3 A schematic diagram showing a cutaway view of an embodiment of the utility model is shown;

[0019] Figure 4 A schematic diagram showing the position of the vertical cut-off section of an embodiment of the utility model is shown;

[0020] Figure 5 A schematic diagram showing a heating coil and a power supply assembly of an embodiment of the utility model is shown;

[0021] Reference numerals: 10, first lens; 11, connecting portion; 20, heating coil; 21, power supply assembly; 211, conducting wire; 212, FPC interface; 213, thermistor; 30, lens frame; 31, shielding portion; 311, through groove; 32, first air hole; 33, vertical cut-off section; 40, base; 41, second air hole; 50, pressing ring; 61, first sealing ring; 62, second sealing ring; DETAILED DESCRIPTION

[0022] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as being limited to the embodiments set forth herein, which are instead provided for a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are only for exemplary purposes and are not intended to limit the scope of protection of the present disclosure.

[0023] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in the present disclosure may be combined with each other. The present disclosure will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0024] It should be understood that the term "including" and its variations used in this document are open inclusions, that is, "including but not limited to". The term "based on" means "based at least in part on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one other embodiment"; the term "some embodiments" means "at least some embodiments". Relevant definitions of other terms will be given in the description below. It should be noted that the concepts of "first", "second", etc. mentioned in this disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0025] It should be noted that the modifications of "one" and "plurality" mentioned in the present disclosure are illustrative rather than restrictive, and those skilled in the art should understand that unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0026] The names of the messages or information exchanged between multiple devices in the embodiments of the present disclosure are only used for illustrative purposes and are not used to limit the scope of these messages or information.

[0027] Reference Figure 1 and Figure 2 , a defogging lens structure, comprising a lens group,

[0028] The lens group includes a first lens 10, which is installed at a position close to the object side of the lens and is located at the front end of the entire lens structure;

[0029] Furthermore, the structure further includes:

[0030] The heating ring 20 is used to increase the temperature of the first lens 10. The heating ring 20 is an annular structure, which can maximize the uniformity of heating and avoid the generation of water mist inside the lens, which will cause blurring on the image display screen and affect the imaging of the lens. The heating ring 20 is attached to the side of the first lens 10 close to the image side and heats the first lens 10 from the rear, so that the temperature of the first lens 10 is balanced with the external temperature, thereby reducing the fogging of the lens surface;

[0031] Power supply component 21, such as Figure 5As shown, it is used to power the heating coil 20. Specifically, the power supply component 21 includes: a conductive wire 211 and an FPC interface 212. One end of the conductive wire 211 is connected to the heating coil 20, and the other end is connected to the FPC interface 212. There is also a thermistor 213 between the conductive wire 211 and the heating coil 20. The change of the lens temperature may affect the performance of the circuit. In order to eliminate this effect, temperature compensation can be performed through the characteristic that the resistance value of the thermistor 213 will change significantly with the change of temperature, which can ensure the stability of the conductive wire 211 circuit at various temperatures.

[0032] As a preferred example, Figure 3 The outer edge of the first lens 10 shown has a connecting portion 11 extending outward, and the extending direction of the connecting portion 11 is the longitudinal direction of the first lens 10. The heating ring 20 is attached to the connecting portion 11. The connecting portion 11 can slow down the transfer of heat on the first lens 10, so that the temperature rise rate of the first lens 10 can be slowed down, avoiding the first lens 10 from being instantly heated too fast and causing cracking due to thermal expansion and contraction, and the temperature of the first lens 10 can be effectively controlled.

[0033] As a further improvement of the above structure, the defogger lens structure further includes a lens frame 30, which is a hollow structure, and the lens group is installed in the lens frame 30; the lens frame 30 has a shielding portion 31, and the position of the shielding portion 31 coincides with the position of the connecting portion 11, so as to shield the heating coil 20 and prevent the heating coil 20 from blocking the light path of the lens structure.

[0034] Furthermore, the shielding portion 31 is provided with a through slot 311 for the conductive line 211 to pass through, so as to facilitate the installation of the line.

[0035] The defog lens structure further includes: a base 40, which is mounted on the rear end of the lens frame 30; and the lens frame 30 and the base 40 are respectively provided with a first air vent 32 and a second air vent 41 which are interconnected, so as to ensure that the inside of the lens is not suffocated and the ventilation is smooth. Figure 4 As shown, the rear portion of the mirror frame 30 has a pair of vertical cut-off sections 33 for positioning the installation angle of the mirror frame 30 on the base 40 to facilitate installation during production.

[0036] The defogger lens structure further includes a pressing ring 50 , which is threadedly mounted on the outer periphery of the shielding portion 31 and is used to press against the first lens 10 .

[0037] As a further improvement of the above structure, a first sealing ring 61 is provided between the first lens 10 and the shielding portion 31, and the sealing ring has an annular structure; the first sealing ring 61 is used to prevent moisture from flowing into the frame 30 from the gap between the connecting portion 11 and the shielding portion 31, so that the lens can be waterproof both externally and internally, and the waterproof level can reach l p69K.

[0038] An embodiment of the utility model also provides a vehicle-mounted electronic camera, which adopts the above-mentioned defogger lens structure, wherein the pressing ring 50 is connected to the camera body, and a second sealing ring 62 is provided on the outside of the pressing ring 50 to prevent moisture from flowing into the camera body from the gap between the pressing ring 50 and the camera body.

[0039] In the description of the present disclosure, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present disclosure.

[0040] Those skilled in the art should understand that the above embodiments are only for the purpose of clearly illustrating the present disclosure, and are not intended to limit the scope of the present disclosure. For those skilled in the art, other changes or modifications may be made based on the above disclosure, and these changes or modifications are still within the scope of the present disclosure.

Claims

1. A defog lens structure, comprising a lens group, characterized in that: The lens assembly comprises a first lens (10) which is mounted at a position close to the object side of the lens; Also includes: A heating ring (20) is used to increase the temperature of the first lens (10); the heating ring (20) is an annular structure and is attached to a side of the first lens (10) close to the image side; A power supply component (21) is used to supply power to the heating coil (20).

2. The defogging lens structure according to claim 1, characterized in that: A connecting portion (11) is provided on the edge of the first lens (10), and the heating ring (20) is adhered to the connecting portion (11).

3. The defogging lens structure according to claim 2, characterized in that: The defogging lens structure further comprises a lens frame (30), the lens frame (30) is a hollow structure, and the lens group is installed in the lens frame (30); The mirror frame (30) has a shielding portion (31), and the shielding portion (31) and the connecting portion (11) are overlapped in position so as to shield the heating coil (20).

4. The defogging lens structure according to claim 3, characterized in that: The power supply component (21) comprises: a conductive wire (211) and an FPC interface (212); one end of the conductive wire (211) is connected to the heating coil (20), and the other end is connected to the FPC interface (212); a thermistor (213) is also provided between the conductive wire (211) and the heating coil (20); The shielding portion (31) is provided with a through slot (311) for allowing the conducting wire (211) to pass through.

5. The defogging lens structure according to claim 3, characterized in that: The defogging lens structure further comprises: a base (40) mounted on the rear end of the lens frame (30); The mirror frame (30) and the base (40) are respectively provided with a first air vent (32) and a second air vent (41) which are communicated with each other.

6. The defogging lens structure according to claim 5, characterized in that: The defogging lens structure also includes a pressing ring (50) which is threadedly mounted on the outer periphery of the shielding portion (31) and is used to press against the first lens (10).

7. The defogging lens structure according to claim 5, characterized in that: A first sealing ring (61) is also provided between the first lens (10) and the shielding portion (31), and the sealing ring is in an annular structure; The first sealing ring (61) is used to prevent moisture from flowing into the mirror frame (30) through the gap between the connecting portion (11) and the shielding portion (31).

8. The defogging lens structure according to claim 5, characterized in that: The rear portion of the mirror frame (30) has a pair of vertical cut-off sections (33) for positioning the installation angle of the mirror frame (30) on the base (40).

9. A vehicle-mounted electronic camera, characterized in that: The camera adopts the defogger lens structure as claimed in any one of claims 1 to 8, the pressure ring (50) is connected to the camera body, and the outer side of the pressure ring (50) also has a second sealing ring (62) for preventing moisture from flowing into the camera body from the gap between the pressure ring (50) and the camera body.

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