Camera lens, vehicle-mounted camera module and vehicle

Abstract

The utility model discloses a pick-up lens, a vehicle-mounted camera module and a vehicle, the pick-up lens comprises a lens barrel with a mounting cavity, a lens assembly arranged in the mounting cavity of a lens barrel liner, and a heating member surrounding the outer peripheral surface of the lens barrel, and the heating member is configured to heat the lens barrel. According to the camera lens, the heating piece is arranged on the peripheral surface of the lens barrel, so that the lens barrel can be heated through the heating piece, heat is transmitted to the light-in lens, when water mist or frost is generated on the light-in lens, the water mist or frost on the light-in lens can be removed in time through the heating piece, and normal use of the camera lens is guaranteed.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of imaging technology, in particular to a camera lens, a vehicle-mounted camera module and a vehicle. BACKGROUND

[0002] With the continuous improvement of the intelligence and automation of automobiles, imaging technology has been widely applied in vehicle-mounted cameras. Vehicle-mounted cameras use imaging technology to realize various functions such as reversing image, 360-degree panoramic image, and driving record, providing better vision and safety for drivers. Compared with imaging technology in other fields, vehicle-mounted cameras need to have higher reliability, stability and adaptability to cope with complex in-vehicle environments and various driving conditions.

[0003] In relatively cold or foggy and snowy weather, water mist or frost is usually attached to the light-in lens of the vehicle-mounted camera, which can cause the vehicle-mounted camera to fail to normally collect images, thereby affecting driving safety. UTILITY MODEL CONTENT

[0004] The utility model content discloses a camera lens, a vehicle-mounted camera module and a vehicle, which can heat the vehicle-mounted camera to remove water mist or frost on the light-in lens.

[0005] To achieve the above purpose, the utility model content discloses a camera lens in the first aspect, which comprises:

[0006] A lens barrel having a mounting cavity;

[0007] A lens assembly arranged in the mounting cavity of the lens barrel; and

[0008] A heating element arranged on the outer peripheral surface of the lens barrel, the heating element being configured to heat the lens barrel.

[0009] By arranging the heating element on the outer peripheral surface of the lens barrel, the heating element can heat the lens barrel, thereby transferring heat to the lens assembly in the mounting cavity of the lens barrel. In this way, when the surface of the light-in lens frosts or fogs when the camera lens is used in a cold environment or a humid environment, the frost or water mist can be removed in time by the heat generated by the heating element, thereby ensuring the normal use of the camera lens.

[0010] As an optional implementation, the lens barrel comprises an object side end and an image side end in the direction of the optical axis, the lens assembly enters light through the object side end, and the heating element is arranged on the outer peripheral surface of the image side end.

[0011] By setting the heating element at the image side end of the lens barrel, on the one hand, in the imaging light path of the lens, some physical phenomena (such as slight thermal expansion) generated by the heating element during the heating process can be avoided to affect the light path, such as blocking, refraction or reflection, etc., resulting in a decrease in imaging quality.

[0012] On the other hand, when the camera lens is connected with external devices (such as power supply or control mechanism, etc.), it is easier to lead the line out from the image side end of the lens barrel, so as to avoid affecting the optical structure inside the lens barrel.

[0013] As an optional implementation, the heating element includes a heating layer and a first insulating layer, the heating layer is attached to the outer circumferential surface of the lens barrel, the heating layer has opposite first and second edge sides, and the first and second edge sides are spaced apart on the outer circumferential surface of the lens barrel.

[0014] The first insulating layer includes a main body portion and a connecting portion, the main body portion covers the heating layer, and the connecting portion extends along the circumferential direction of the lens barrel and at least partially protrudes from the edge side of the main body portion, so that the connecting portion covers at least part of the space between the first and second edge sides corresponding to the lens barrel.

[0015] By covering the heating layer with the main body portion of the first insulating layer and extending the connecting portion to cover at least part of the space between the first and second edge sides, on the one hand, the heating layer can be isolated from the surrounding environment by the first insulating layer, so as to avoid the damage caused by the conduction between the heating layer and other components.

[0016] On the other hand, the heating layer can be wrapped between the first insulating layer and the lens barrel by the first insulating layer, and the main body portion of the first insulating layer covers the heating layer, and the connecting portion extends along the circumferential direction of the lens barrel and at least partially protrudes from the edge side of the main body portion, so that the connecting portion covers at least part of the space between the first and second edge sides corresponding to the lens barrel. In this way, the connection between the first insulating layer and the lens barrel can be more closely, so as to increase the stability of the entire heating element attached to the outer circumferential surface of the lens barrel, and prevent the heating element from moving or falling off during use.

[0017] As an optional implementation, the main body portion has a third edge side and a fourth edge side along the circumferential direction of the lens barrel, the third edge side corresponds to the first edge side, and the fourth edge side corresponds to the second edge side, one end of the connecting portion is connected to the third edge side along the circumferential direction of the lens barrel, and the other end of the connecting portion extends to cover the fourth edge side.

[0018] By connecting one end of the connecting portion to the third edge side of the main body portion and extending the other end to cover the fourth edge side, that is, along the circumferential direction of the lens barrel, the connecting portion can be lapped onto the main body portion, and this structure enables the first insulating layer to form a relatively closed covering structure on the outer circumferential surface of the lens barrel. On the one hand, it can prevent the heat generating layer from being locally warped or displaced on the lens barrel; on the other hand, it can provide more comprehensive insulating coverage in the circumferential direction of the lens barrel, thereby better reducing the risk of electric leakage. On the other hand, it can also reduce the heat dissipation of the heat generating layer to the outside, thereby enabling more heat to be transferred to the lens barrel, improving the utilization rate of heat.

[0019] As an optional embodiment, the main body portion has a third edge side and a fourth edge side along the circumferential direction of the lens barrel, the third edge side corresponds to the first edge side, and the fourth edge side corresponds to the second edge side.

[0020] The connecting portion includes a first sub-portion and a second sub-portion, the first sub-portion is connected to the third edge side, and the second sub-portion is connected to the fourth edge side, and along the circumferential direction of the lens barrel, the first sub-portion at least partially covers the second sub-portion.

[0021] By making the connecting portion include a first sub-portion and a second sub-portion, and the first sub-portion is connected to the third edge side and the second sub-portion is connected to the fourth edge side, and along the circumferential direction of the lens barrel, the first sub-portion at least partially covers the second sub-portion, this can connect the third edge side and the fourth edge side of the main body portion together through the first sub-portion and the second sub-portion, thereby enabling the first insulating layer to form a relatively closed covering structure on the outer circumferential surface of the lens barrel. On the one hand, it can prevent the heat generating layer from being locally warped or displaced on the lens barrel; on the other hand, it can provide more comprehensive insulating coverage in the circumferential direction of the outer circumferential surface of the lens barrel, thereby better reducing the risk of electric leakage, and on the other hand, it can also reduce the heat dissipation of the heat generating layer to the outside, thereby enabling more heat to be transferred to the lens barrel, improving the utilization rate of heat.

[0022] As an optional embodiment, the first insulating layer further includes an extension portion, the extension portion is connected to the main body portion and the connecting portion along the optical axis direction of the lens barrel, and the extension portion extends along the optical axis direction of the lens barrel, and along the circumferential direction of the lens barrel, one end of the extension portion extends to cover the other end of the extension portion.

[0023] By setting the extension part, and the extension part extends along the optical axis direction of the lens barrel and is connected to the main body part and the connecting part, so that the first insulation layer can make the structure more complete as a whole, realize the first insulation layer along the circumferential direction of the lens barrel, and the extension part can also wrap the heating layer inside the first insulation layer along the optical axis direction of the lens barrel. In this way, the first insulation layer can wrap the heating layer in the circumferential direction of the lens barrel and the optical axis direction, on the one hand, it can better prevent the heating layer from appearing local buckling or displacement on the lens barrel, on the other hand, it can provide more comprehensive insulation coverage in the circumferential direction and the optical axis direction of the lens barrel, thereby better reducing the risk of electric leakage, and on the other hand, it can further reduce the heat loss of the heating layer, thereby enabling more heat to be transferred to the lens barrel, improving the heat utilization rate.

[0024] As an optional implementation,

[0025] The heating element further comprises an adhesive layer, and the heating layer is attached to the outer peripheral surface of the lens barrel through the adhesive layer; and / or,

[0026] The main body part is provided with an electrical connection part, and the electrical connection part is electrically connected to the heating layer, and the connecting part is provided with an avoiding hole for avoiding the electrical connection part.

[0027] On the one hand, by setting the adhesive layer, the heating layer can be fixed to the outer peripheral surface of the lens barrel, so that the heating layer can directly transmit heat to the lens barrel, thereby increasing the temperature of the lens assembly to remove water mist or frost.

[0028] On the other hand, by setting the electrical connection part, the electrical connection part is located on the main body part and is electrically connected to the heating layer, so that the heating layer can be connected to the power supply device through the electrical connection part, thereby ensuring the normal work of the heating layer. In addition, the avoiding hole for avoiding the electrical connection part is arranged on the connecting part, so that the electrical connection part is not covered when the connecting part is connected to the main body part, and the heating layer cannot be connected to the power supply device through the electrical connection part.

[0029] As an optional implementation, the heating element further comprises a second insulation layer, and the second insulation layer is arranged between the heating layer and the lens barrel along the thickness direction of the first insulation layer.

[0030] By arranging the second insulation layer between the heating layer and the lens barrel, the risk of electrical short circuit between the heating layer and the lens barrel can be reduced. In addition, by the cooperation between the first insulation layer and the second insulation layer, more reliable insulation protection can be formed, the first insulation layer provides insulation protection from the outer peripheral surface, and the second insulation layer provides insulation from the heating layer and the lens barrel, thereby ensuring the working stability of the camera lens.

[0031] In a second aspect, the utility model discloses a vehicle-mounted camera module, including image sensor and as above described first aspect camera lens, image sensor sets up in the image side of camera lens, image sensor is set up corresponding camera lens.

[0032] In a third aspect, the utility model discloses a vehicle-mounted camera module, including as above described second aspect vehicle-mounted camera module.

[0033] Compared with the prior art, the beneficial effects of the present application are:

[0034] The utility model provides a camera lens, vehicle-mounted camera module and vehicle, lens component sets up in the mounting cavity of lens barrel, and heating piece is surrounded on the outer peripheral surface of lens barrel, and this heating piece is configured as heating lens barrel. By setting heating piece on the outer peripheral surface of lens barrel, the temperature of lens barrel is increased by heating lens barrel with heating piece. When water mist or frost is attached to the light-in lens of camera lens, the temperature of lens component set in the inside of lens barrel is also increased by using the lens barrel with increased temperature, so that the water mist or frost can be removed, and the normal work of camera lens is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0036] Figure 1 It is the structure schematic view of camera lens disclosed by the embodiments of the present application.

[0037] Figure 2 It is the connection schematic view of heating layer and first insulating layer disclosed by the embodiments of the present application.

[0038] Figure 3 It is the first structure schematic view of heating piece disclosed by the embodiments of the present application.

[0039] Figure 4 It is the first structure schematic view of heating piece surrounding the outer peripheral surface of lens barrel disclosed by the embodiments of the present application.

[0040] Figure 5 It is the second structure schematic view of heating piece surrounding the outer peripheral surface of lens barrel disclosed by the embodiments of the present application.

[0041] Figure 6 It is the second structure schematic view of heating piece disclosed by the embodiments of the present application.

[0042] Figure 7is a first connection diagram of the first subpart and the second subpart disclosed by the embodiment of the present application;

[0043] Figure 8 is a second connection diagram of the first subpart and the second subpart disclosed by the embodiment of the present application;

[0044] Figure 9 is a third connection diagram of the first subpart and the second subpart disclosed by the embodiment of the present application;

[0045] Figure 10 is a fourth connection diagram of the first subpart and the second subpart disclosed by the embodiment of the present application;

[0046] Figure 11 is a structure diagram of the extension part disclosed by the embodiment of the present application;

[0047] Figure 12 is a third structure diagram of the heating member surrounding the outer circumferential surface of the lens barrel disclosed by the embodiment of the present application;

[0048] Figure 13 is a first structure diagram of the adhesive layer disclosed by the embodiment of the present application;

[0049] Figure 14 is a second structure diagram of the adhesive layer disclosed by the embodiment of the present application;

[0050] Figure 15 is a third structure diagram of the adhesive layer disclosed by the embodiment of the present application;

[0051] Figure 16 is a structure diagram of the adhesive layer disclosed by the embodiment of the present application;

[0052] Figure 17 is a structure diagram of the electrically connected member and the avoiding hole disclosed by the embodiment of the present application;

[0053] Figure 18 is a structure diagram of the heating member surrounding the outer circumferential surface of the lens barrel (including the electrically connected member and the avoiding hole) disclosed by the embodiment of the present application;

[0054] Figure 19 is a structure diagram of the second insulating layer disclosed by the embodiment of the present application;

[0055] Figure 20 is a structure diagram of the vehicle-mounted camera module disclosed by the embodiment of the present application;

[0056] Figure 21 is a structure diagram of the vehicle disclosed by the embodiment of the present application.

[0057] Explanation of reference signs:

[0058] 100 - camera lens; 1 - lens barrel; 11 - mounting cavity; 12 - object side end; 13 - image side end; 2 - lens assembly; 3 - heating member; 31 - heating layer; 311 - first edge side; 312 - second edge side; 32 - first insulating layer; 321 - main body portion; 321a - third edge side; 321b - fourth edge side; 322 - connecting portion; 322a - first sub-portion; 322b - second sub-portion; 322c - avoiding hole; 323 - extending portion; 324 - electricity connecting member; 33 - adhesive layer; 34 - bonding layer; 35 - second insulating layer; 200 - vehicle-mounted camera module; 201 - image sensor; 300 - vehicle; O - optical axis direction; N - circumferential direction. DETAILED DESCRIPTION

[0059] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0060] In the present application, the positions or location relationships indicated by the terms "upper", "lower", etc. are based on the positions or location relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific position, or to be constructed and operated in a specific position.

[0061] In addition, in addition to being used to indicate the positions or location relationships, the above-mentioned terms can also be used to indicate other meanings, for example, the term "upper" can also be used to indicate a certain attachment relationship or connection relationship in some cases. Those of ordinary skill in the art can understand the specific meanings of these terms in the present application according to specific circumstances.

[0062] In addition, the terms "set", "connected" should be understood broadly. For example, it can be fixedly connected, detachably connected, or integrally constructed; it can be mechanically connected, or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication between two devices, elements or components. Those of ordinary skill in the art can understand the specific meanings of the above-mentioned terms in the present application according to specific circumstances.

[0063] In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, elements or components (the specific types and structures can be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise stated, the meaning of "multiple" is two or more.

[0064] The vehicle-mounted camera module can perform functions such as reversing image, driving record, etc., and its basic working principle is similar to other camera modules, mainly including a camera lens, an image sensor, an image signal processor (ISP), etc. Light is focused on the image sensor through the lens, the sensor converts the optical signal into an electrical signal, and then the ISP processes it to finally generate a digital image, thereby providing the driver with a better field of view and safety guarantee.

[0065] However, in relatively cold or foggy and snowy weather, water mist or frost is usually attached to the light-in lens of the vehicle-mounted camera, which will cause the vehicle-mounted camera to be unable to normally collect images, thereby affecting driving safety.

[0066] Therefore, the embodiments of the present application disclose a camera lens, a vehicle-mounted camera module and a vehicle. The camera lens comprises a lens barrel having a mounting cavity, a lens assembly arranged in the mounting cavity of the inner barrel of the lens barrel, and a heating element arranged around the outer circumferential surface of the lens barrel, the heating element being configured to heat the lens barrel. By arranging the heating element on the outer circumferential surface of the lens barrel, the heating element can heat the lens barrel, thereby transferring heat to the light-in lens. Therefore, when water mist or frost is generated on the light-in lens, the heating element can timely remove the water mist or frost on the light-in lens, thereby ensuring the normal use of the camera lens.

[0067] The technical solutions of the present application will be further described below in combination with embodiments and drawings.

[0068] Please refer to Figure 1 , Figure 1 is a structural schematic diagram of the camera lens disclosed by the embodiments of the present application. The camera lens 100 comprises a lens barrel 1, a lens assembly 2 and a heating element 3. The lens barrel 1 has a mounting cavity 11, the lens assembly 2 is arranged in the mounting cavity 11 of the lens barrel 1, and the heating element 3 is arranged around the outer circumferential surface of the lens barrel 1, and the heating element 3 is configured to heat the lens barrel 1.

[0069] The camera lens 100 disclosed by the present application can heat the lens barrel 1 through the heating element 3 arranged on the outer circumferential surface of the lens barrel 1, thereby transferring heat to the lens assembly 2 in the mounting cavity 11 of the lens barrel 1. Therefore, when frost or water mist is generated on the surface of the light-in lens when the camera lens 100 is used in a cold environment or a humid environment, the heating element 3 can timely remove the frost or water mist, thereby ensuring the normal use of the camera lens 100.

[0070] Secondly, the camera lens 100 disclosed in the present application, by surrounding the heating element 3 around the outer circumferential surface of the lens barrel 1, the setting mode of the heating element 3 can uniformly transmit heat to the lens barrel 1, and can transmit heat on a larger area, that is, can make the overall temperature of the lens barrel 1 rise, thereby more efficiently removing the frost or water mist on the surface of the lens. On the other hand, the heating element 3 is arranged on the outer circumferential surface of the lens barrel 1, which can avoid affecting the sealing of the inside of the lens barrel 1 by arranging the heating element 3 inside the lens barrel 1, thereby ensuring that the lens assembly 2 is in a stable and clean working environment.

[0071] In some embodiments, referring to Figure 1 , the lens barrel 1 includes an object side end 12 and an image side end 13 along the optical axis direction O, the lens assembly 2 enters light through the object side end 12, and the heating element 3 is arranged around the outer circumferential surface of the image side end 13. By arranging the heating element 3 on the image side end 13 of the lens barrel 1, some physical phenomena (such as slight thermal expansion) generated by the heating element 3 during heating can be avoided to affect the optical path, such as blocking, refraction or reflection, etc., resulting in a decrease in imaging quality.

[0072] In addition, by arranging the heating element 3 on the outer circumferential surface of the image side end 13 of the lens barrel 1, it is easier to lead the line out of the image side end 13 of the lens barrel 1 when the camera lens 100 is connected with external equipment (such as power supply or control mechanism, etc.), thereby avoiding affecting the optical structure inside the lens barrel 1.

[0073] It can be understood that the lens barrel 1 needs to transmit the heat generated by the heating element 3 to the lens assembly 2, so the material of the lens barrel 1 needs to have good thermal conductivity, for example, it can be aluminum alloy or copper alloy, etc., which is not limited in the present embodiment.

[0074] Referring to Figures 1 to 4 , Figure 2 is a connection diagram of the heating layer and the first insulating layer disclosed in the present embodiment, Figure 3 is a first structure diagram of the heating element disclosed in the present embodiment, Figure 4 is a first structure diagram of the heating element surrounding the outer circumferential surface of the lens barrel.

[0075] In order to better heat the lens barrel 1 by the heating element 3, it is usually necessary to make the heating layer extend as long as possible along the circumferential direction N of the lens barrel 1, but part of the two edge sides of the heating layer 31 still needs to be left apart, so as to avoid the two edge sides overlapping together after thermal expansion of the heating layer 31, causing local overheating and damage to the lens barrel 1.

[0076] Based on this, in some embodiments, the heating element 3 comprises a heating layer 31 and a first insulating layer 32, the heating layer 31 is attached to the outer circumferential surface of the lens barrel 1, and along the circumferential direction N of the lens barrel 1, the heating layer 31 has opposite first edge side 311 and second edge side 312, and when the heating layer 31 is attached to the outer circumferential surface of the lens barrel 1, the first edge side 311 and the second edge side 312 are arranged at intervals on the outer circumferential surface of the lens barrel 1. The first insulating layer 32 comprises a main body part 321 and a connecting part 322, the main body part 321 covers the heating layer 31, and along the circumferential direction N of the lens barrel 1, the connecting part 322 extends along the circumferential direction N of the lens barrel 1 and at least partially protrudes from the edge side of the main body part 321, so that the connecting part 322 covers at least part of the interval between the first edge side 311 and the second edge side 312 of the lens barrel 1. That is, along the circumferential direction N of the lens barrel 1, the part of the outer circumferential surface of the lens barrel 1 corresponding to the interval between the first edge side 311 and the second edge side 312 can be covered by the connecting part 322.

[0077] By covering the heating layer 31 with the main body part 321 of the first insulating layer 32, and extending the connecting part 322 to cover at least part of the interval between the first edge side 311 and the second edge side 312, on the one hand, the heating layer 31 can be isolated from the surrounding environment by the first insulating layer 32, so as to avoid the situation that the heating layer 31 conducts electricity with other components and causes damage. On the other hand, the heating layer 31 can be wrapped between the first insulating layer 32 and the lens barrel 1, and the main body part 321 of the first insulating layer 32 covers the heating layer 31, and the connecting part 322 extends along the circumferential direction N of the lens barrel 1 and at least partially protrudes from the edge side of the main body part 321, so that the connecting part 322 covers at least part of the interval between the first edge side 311 and the second edge side 312 of the lens barrel 1. In this way, the connection between the first insulating layer 32 and the lens barrel 1 can be more closely, so as to increase the stability of the entire heating element 3 attached to the outer circumferential surface of the lens barrel 1, and prevent the heating element 3 from moving or falling off during use.

[0078] It can be understood that the above-mentioned heating layer 31 can be a metal foil heating layer, a carbon fiber heating layer or a resistance wire heating layer, etc., which is not specifically limited in the present embodiment.

[0079] It can be understood that the above-mentioned first insulating layer 32 needs to be arranged around the outer circumferential surface of the lens barrel 1, so the material of the first insulating layer 32 needs to have a certain flexibility so as to be able to be bent, which can be polyimide or ethylene-propylene rubber, etc., which is not specifically limited in the present embodiment.

[0080] It can be understood that the main body part 321 and the connecting part 322 of the first insulation layer 32 can refer to two regions in a piece of insulation layer along the circumferential direction N of the lens barrel 1, wherein the region with the same length as the heat generating layer 31 is the main body part 321, and the other part is the connecting part 322, which is used to connect the edge side of the main body part 321, that is, the connecting part 322 can be obtained by directly extending the main body part 321.

[0081] It can be understood that the connecting part 322 covering at least part of the interval between the first edge side 311 and the second edge side 312 of the lens barrel 1 can have various examples, which will be described below.

[0082] In some embodiments, the connecting part 322 can be extended from one edge side of the main body part 321.

[0083] Specifically, please refer to Figure 3 and Figure 5 , Figure 5 is a second structure diagram of the heating element surrounding the outer circumferential surface of the lens barrel disclosed in the embodiments of the present application. The main body part 321 has a third edge side 321a and a fourth edge side 321b along the circumferential direction N of the lens barrel 1, the third edge side 321a corresponds to the first edge side 311, and the fourth edge side 321b corresponds to the second edge side 312. In the circumferential direction N of the lens barrel 1, one end of the connecting part 322 is connected to the third edge side 321a, and the other end of the connecting part 322 extends to cover the fourth edge side 321b.

[0084] It can be understood that the third edge side 321a of the main body part 321 corresponds to the first edge side 311 of the heat generating layer 31, and the fourth edge side 321b of the main body part 321 corresponds to the second edge side 312 of the heat generating layer 31, which means that the extension length of the main body part 321 is the same as the extension length of the heat generating layer 31 along the circumferential direction N of the lens barrel 1. That is, when the heat generating layer 31 is attached to the outer circumferential surface of the lens barrel 1, the main body part 321 just covers the heat generating layer 31.

[0085] By connecting one end of the connecting portion 322 to the third edge side 321a of the main body portion 321 and extending the other end to cover the fourth edge side 321b, i.e., along the circumferential direction N of the lens barrel 1, the connecting portion 322 can be lapped onto the main body portion 321, which makes the first insulating layer 32 form a relatively closed covering structure on the outer circumferential surface of the lens barrel 1. On the one hand, it can prevent the heat generating layer 31 from being locally warped or displaced on the lens barrel 1; on the other hand, it can provide more comprehensive insulation coverage in the circumferential direction N of the lens barrel 1, thereby better reducing the risk of electric leakage. On the other hand, it can also reduce the heat dissipation of the heat generating layer 31 to the outside, so that more heat can be transferred to the lens barrel 1, improving the utilization rate of heat.

[0086] It can be understood that the above-mentioned connecting portion 322 can be to extend one edge side of the main body portion 321 along the circumferential direction N of the lens barrel 1, so that the extended portion can partially overlap with the other end portion of the main body portion 321, thereby connecting the third edge side 321a and the fourth edge side 321b of the main body portion 321 together through the connecting portion 322, so that the first insulating layer 32 surrounds an entire circle along the circumferential direction N of the lens barrel 1.

[0087] It should be noted that as long as the connecting portion 322 can extend along the circumferential direction N of the lens barrel 1 to lap the fourth edge side 321b of the main body portion 321, the extension length of the connecting portion 322 on the fourth edge side 321b of the main body portion 321 is not limited.

[0088] In other embodiments, the connecting portion 322 can be formed by extending both edge sides of the main body portion 321.

[0089] Please refer to Figure 4 and Figure 6 , Figure 6 is a second structure schematic view of the heating element disclosed in the embodiments of the present application. The main body portion 321 has a third edge side 321a and a fourth edge side 321b along the circumferential direction N of the lens barrel 1, the third edge side 321a corresponds to the above-mentioned first edge side 311, and the fourth edge side 321b corresponds to the above-mentioned second edge side 312. The connecting portion 322 includes a first sub-portion 322a and a second sub-portion 322b, the first sub-portion 322a is connected to the third edge side 321a, and the second sub-portion 322b is connected to the fourth edge side 321b, along the circumferential direction N of the lens barrel 1, the first sub-portion 322a at least partially covers the second sub-portion 322b.

[0090] By including a first sub-part 322a and a second sub-part 322b in the connecting portion 322, with the first sub-part 322a connected to the third edge side 321a and the second sub-part 322b connected to the fourth edge side 321b, and with the first sub-part 322a at least partially covering the second sub-part 322b in the circumferential direction N of the lens barrel 1, the third edge side 321a and the fourth edge side 321b of the main body portion 321 can be connected together through the first sub-part 322a and the second sub-part 322b. This allows the first insulating layer 32 to form a relatively closed covering structure on the outer circumferential surface of the lens barrel 1. On the one hand, this prevents the heating layer 31 from partially warping or shifting on the lens barrel 1; on the other hand, it provides more comprehensive insulation coverage in the circumferential direction N of the outer circumferential surface of the lens barrel 1, thereby better reducing the risk of leakage current; furthermore, it reduces the outward dissipation of heat from the heating layer 31, allowing more heat to be transferred to the lens barrel 1 and improving heat utilization.

[0091] It is understood that the first sub-part 322a and the second sub-part 322b of the connecting part 322 can be formed by extending both edge sides of the main body part 321 along the circumferential direction N of the lens barrel 1 so that the two extended parts can overlap, thereby connecting the third edge side 321a and the fourth edge side 321b of the main body part 321 together through the first sub-part 322a and the second sub-part 322b, so that the first insulating layer 32 forms a complete circle along the circumferential direction N of the lens barrel 1.

[0092] It is understood that the first sub-part 322a and the second sub-part 322b can partially overlap or completely overlap. When the length of the first sub-part 322a along the circumferential direction N of the lens barrel 1 is greater than the length of the second sub-part 322b along the circumferential direction N of the lens barrel 1, the first sub-part 322a partially overlaps the second sub-part 322b. This partial overlap can be a partial overlap of the first sub-part 322a onto the second sub-part 322b (e.g., Figure 7 As shown, Figure 7 This is a schematic diagram of the first connection between the first sub-part and the second sub-part disclosed in the embodiments of this application. Alternatively, the first sub-part 322a may partially overlap the entirety of the second sub-part 322b (e.g., Figure 8 As shown, Figure 8 This is a schematic diagram of the second connection between the first sub-part and the second sub-part disclosed in the embodiments of this application. In both cases, the first sub-part 322a partially overlaps the second sub-part 322b. When the first sub-part 322a and the second sub-part 322b have the same length along the circumferential direction N of the lens barrel 1, the first sub-part 322a can partially overlap the second sub-part 322b (e.g., Figure 9 As shown, Figure 9is a third connection diagram of the first sub-portion and the second sub-portion disclosed by the embodiment of the present application), or all of them can be overlapped on the second sub-portion 322b (as shown in Figure 10 as shown, Figure 10 is a fourth connection diagram of the first sub-portion and the second sub-portion disclosed by the embodiment of the present application), which can be set according to actual conditions.

[0093] It can be understood that in the above two schemes, the connecting portion 322 can be formed by extending one of the edge sides of the main body portion 321, or extending both edge sides of the main body portion 321. Since the material of the connecting portion 321 can be polyimide or ethylene-propylene rubber, etc., when the connecting portion 321 is overlapped with the main body portion 321, or the first sub-portion 322a and the second sub-portion 322b are overlapped, the overlapping connection can be achieved by, for example, heat pressing.

[0094] Of course, as other examples, the adhesive layer 33 can also be provided. Please refer to Figure 13 , Figure 13 is a first structure diagram of the adhesive layer disclosed by the embodiment of the present application, the adhesive layer 33 is arranged between the other end of the connecting portion 322 and the main body portion 321, so that the connecting portion 322 covers the fourth edge side 321b of the main body portion 321. Please refer to Figure 14 , Figure 14 is a second structure diagram of the adhesive layer disclosed by the embodiment of the present application, the adhesive layer 33 is arranged between the first sub-portion 322a and the second sub-portion 322b, so that the first sub-portion 322a at least partially covers the second sub-portion 322b. By arranging the adhesive layer 33, the other end of the connecting portion 322 and the main body portion 321 can be bonded together, or the first sub-portion 322a and the second sub-portion 322b can be bonded together, so as to strengthen the connection between the connecting portion 322 and the main body portion 321, and prevent the connecting portion 322 and the main body portion 321 from being separated during the use of the camera lens 100.

[0095] In addition, by the adhesive layer 33, the connecting portion 322 and the main body portion 321, or the first sub-portion 322a and the second sub-portion 322b can be bonded, which can improve the convenience of bonding and facilitate operation.

[0096] It can be understood that the above-mentioned adhesive layer 33 can be hot melt adhesive or acrylic adhesive, etc., which is not limited in the embodiment.

[0097] In some other embodiments, please refer to Figure 11 and Figure 12 , Figure 11 is a structure diagram of the extension portion disclosed by the embodiment of the present application,Figure 12 is a third structure schematic view of the heating element surrounding the outer circumferential surface of the lens barrel disclosed by the embodiments of the present application. In addition to being extended along the length direction of the main body portion 321, the first insulation layer 32 can also be extended along the optical axis direction O of the lens barrel 1. Specifically, the first insulation layer 32 further comprises an extension portion 323 connected to the main body portion 321 and the connecting portion 322 along the optical axis direction O of the lens barrel 1, and the extension portion 323 extends along the optical axis direction O of the lens barrel 1. Along the circumferential direction N of the lens barrel 1, one end of the extension portion 323 extends to cover the other end of the extension portion 323.

[0098] By providing the extension portion 323, and the extension portion 323 extending along the optical axis direction O of the lens barrel 1 and being connected to the main body portion 321 and the connecting portion 322, the overall structure of the first insulation layer 32 can be more complete, so that the first insulation layer 32 can be formed in a complete circle along the circumferential direction N of the lens barrel 1, and the extension portion 323 can also wrap the heating layer 31 inside the first insulation layer 32 along the optical axis direction O of the lens barrel 1. In this way, the first insulation layer 32 can wrap the heating layer 31 along both the circumferential direction N and the optical axis direction O of the lens barrel 1, which can better prevent the heating layer 31 from being locally raised or displaced on the lens barrel 1, and can provide more comprehensive insulation coverage along the circumferential direction N and the optical axis direction O of the outer circumferential surface of the lens barrel 1, thereby better reducing the risk of electric leakage, and further reducing heat loss of the heating layer 31, so that more heat can be transferred to the lens barrel 1, improving the utilization rate of heat.

[0099] It can be understood that in the above-mentioned scheme including the extension portion 323, the connecting portion 322 can include the above-mentioned various cases. In one example, one end of the connecting portion 322 is connected to the third edge layer, and the other end covers the fourth edge side 321b. In another example, the connecting portion 322 comprises a first sub-portion 322a and a second sub-portion 322b, and along the circumferential direction N of the lens barrel 1, the first sub-portion 322a at least partially covers the second sub-portion 322b. Regardless of the scheme of the connecting portion 322, the connection mode of the extension portion 323 is that one end of the extension portion 323 extends to cover the other end of the extension portion 323.

[0100] It can be understood that the above-mentioned extension portion 323 can be extended on one side or both sides along the optical axis direction O of the lens barrel 1, which is not specifically limited in the embodiments.

[0101] It can be understood that when the one end and the other end of the above-mentioned extension portion 323 overlap, the connection can also be achieved by hot pressing or by providing an adhesive layer 33 (see Figure 15 ,Figure 15 is a third structural schematic diagram of the adhesive layer disclosed by the embodiments of the present application, and the embodiments of the present application do not make specific limitation on this.

[0102] Optionally, referring to Figure 16 , Figure 16 is a structural schematic diagram of the adhesive layer disclosed by the embodiments of the present application. The heating element 3 further comprises an adhesive layer 34, and the heating layer 31 is adhered to the outer circumferential surface of the lens barrel 1 through the adhesive layer 34. By arranging the adhesive layer 34, the heating layer 31 can be fixed to the outer circumferential surface of the lens barrel 1, so that the heating layer 31 can directly transmit heat to the lens barrel 1, and then the temperature of the lens assembly 2 is increased to remove the water mist or frost.

[0103] It can be understood that the material of the adhesive layer 34 is the same as the above-mentioned adhesive layer, and the embodiments of the present application do not make too much description on this.

[0104] In some embodiments, referring to Figure 17 and 18 , Figure 17 is a structural schematic diagram of the power connection element and the avoiding hole disclosed by the embodiments of the present application, Figure 18 is a structural schematic diagram of the heating element surrounded by the outer circumferential surface of the lens barrel (including the power connection element and the avoiding hole) disclosed by the embodiments of the present application. The main body part 321 is provided with a power connection element 324, which is electrically connected with the heating layer 31, and the connecting part 322 is provided with an avoiding hole 322c for avoiding the power connection element 324. By arranging the power connection element 324 on the main body part 321 and electrically connecting it with the heating layer 31, it can be ensured that the heating layer 31 can be connected to the power supply device through the power connection element 324, so as to ensure the normal work of the heating layer 31. In addition, by arranging the avoiding hole 322c for avoiding the power connection element 324 on the connecting part 322, it can be avoided that the connecting part 322 covers the power connection element 324 when it is connected to the main body part 321, so that the heating layer 31 cannot be connected to the power supply device through the power connection element 324.

[0105] It can be understood that the above-mentioned power connection element 324 can be a metal sheet or a metal pin, and the embodiments of the present application do not make specific limitation on this.

[0106] It can be understood that the size of the above-mentioned avoiding hole 322c needs to match the size of the power connection element 324, so that the power connection element 324 can be exposed, and at the same time the heating layer 31 cannot be exposed, so as to avoid the situation of electric leakage.

[0107] Optionally, referring to Figure 19 , Figure 19is a structural schematic view of the second insulating layer disclosed in the embodiment of the present application. The heating element 3 further comprises a second insulating layer 35, which is arranged between the heating layer 31 and the lens barrel 1 along the thickness direction of the first insulating layer 32. By arranging the second insulating layer 35 between the heating layer 31 and the lens barrel 1, the risk of electrical short circuit between the heating layer 31 and the lens barrel 1 can be reduced. In addition, by the cooperation between the first insulating layer 32 and the second insulating layer 35, more reliable insulation protection can be formed, the first insulating layer 32 performs insulation protection from the outer peripheral surface, and the second insulating layer 35 performs insulation between the heating layer 31 and the lens barrel 1, so that the working stability of the camera lens 100 can be ensured.

[0108] It can be understood that the length of the second insulating layer 35 along the circumferential direction N of the lens barrel 1 is greater than or equal to the length of the heating layer 31, so that the heating layer 31 can be prevented from directly contacting the outer peripheral surface of the lens barrel 1.

[0109] It can be understood that the material of the second insulating layer 35 is the same as that of the first insulating layer 32, and the embodiment will not be described in detail.

[0110] It can be understood that the connection between the heating layer 31 and the first insulating layer 32 and the second insulating layer 35 can be achieved by means of an adhesive layer, for example, double-sided tape or high-temperature glue, and the adhesion is helpful to reduce the thickness of the heating element 3 as a whole.

[0111] Referring to Figure 20 , Figure 20 is a structural schematic view of the vehicle-mounted camera module disclosed in the embodiment of the present application. The second aspect of the present application further discloses a vehicle-mounted camera module 200, which comprises an image sensor 201 and the camera lens 100 of the first aspect described above, the image sensor 201 is arranged on the image side of the camera lens 100, and the image sensor 201 is arranged corresponding to the camera lens 100.

[0112] Among them, the camera lens 100 in the embodiment of the present application can have the same structure as any one of the camera lenses 100 in the above-mentioned embodiments, and can bring the same or similar beneficial effects, and the specific description can be referred to the description in the above-mentioned embodiments, which will not be described herein again.

[0113] Referring to Figure 21 , Figure 21 is a structural schematic view of the vehicle disclosed in the embodiment of the present application. In the third aspect, the present application further discloses a vehicle 300, which comprises the vehicle-mounted camera module 200 of the second aspect described above.

[0114] In the embodiments of the present application, the vehicle-mounted camera module 200 can have the same structure as any of the vehicle-mounted camera modules 200 in the above embodiments and can bring the same or similar beneficial effects. For details, refer to the description in the above embodiments, which will not be repeated here.

[0115] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An image capturing lens, characterized by, The camera lens comprises: a lens barrel having a mounting cavity; a lens assembly arranged in the mounting cavity of the lens barrel; and a heating member arranged around the outer circumferential surface of the lens barrel, the heating member being configured to heat the lens barrel. The lens barrel comprises an object side end and an image side end in the direction of the optical axis, the lens assembly is arranged to receive light through the object side end, and the heating member is arranged around the outer circumferential surface of the image side end.

2. The camera lens according to claim 1, characterized in that, The heating member comprises a heating layer and a first insulating layer, the heating layer is arranged on the outer circumferential surface of the lens barrel, the heating layer has opposite first and second edge sides, and the first and second edge sides are arranged at intervals on the outer circumferential surface of the lens barrel. The first insulating layer comprises a main body portion and a connecting portion, the main body portion covers the heating layer, and the connecting portion extends along the circumferential direction of the lens barrel and at least partially protrudes from the edge side of the main body portion so that the connecting portion covers at least part of the interval between the first and second edge sides of the lens barrel.

3. The camera lens of claim 2, wherein The main body portion has a third edge side corresponding to the first edge side and a fourth edge side corresponding to the second edge side in the circumferential direction of the lens barrel, one end of the connecting portion is connected to the third edge side, and the other end of the connecting portion extends to cover the fourth edge side.

4. The camera lens of claim 2, wherein The main body portion has a third edge side corresponding to the first edge side and a fourth edge side corresponding to the second edge side in the circumferential direction of the lens barrel. The connecting portion comprises a first sub-portion connected to the third edge side and a second sub-portion connected to the fourth edge side, and the first sub-portion at least partially covers the second sub-portion in the circumferential direction of the lens barrel.

5. The camera lens of claim 2, wherein The first insulating layer further comprises an extension portion connected to the main body portion and the connecting portion in the direction of the optical axis of the lens barrel, and the extension portion extends in the direction of the optical axis of the lens barrel, one end of the extension portion extends to cover the other end of the extension portion in the circumferential direction of the lens barrel.

6. The camera lens of any one of claims 3-5, wherein, The heating member further comprises an adhesive layer, the heating layer is attached to the outer circumferential surface of the lens barrel through the adhesive layer; and / or The main body portion is provided with an electrical connection member, the electrical connection member is electrically connected to the heating layer, and the connecting portion is provided with a relief hole for avoiding the electrical connection member.

7. The camera lens of claim 2, wherein The heating member further comprises a second insulating layer arranged between the heating layer and the lens barrel in the thickness direction of the first insulating layer.

8. A vehicle camera module, comprising: The camera lens comprises an image sensor and any one of claims 1-7, the image sensor is arranged on the image side of the camera lens, and the image sensor corresponds to the camera lens.

9. A vehicle characterized by comprising: The vehicle-mounted camera module comprises the camera lens of claim 8.

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