阅读说明：本技术 带加热装置的摄像模组 (Camera shooting module with heating device ) 是由 朱海海 龚思惠 王克民 曾吉勇 于 2021-07-22 设计创作，主要内容包括：本发明公开了一种带加热装置的摄像模组,包括：镜筒,镜筒包括靠近物侧的物侧端；第一透镜,第一透镜设置在所述物侧端；以及加热装置,加热装置设置于镜筒内；加热装置包括加热件、导线、端子模、端子、电路板；端子与电路板的供电位置贴合,实现电性连接,用于给加热件供电；加热件和端子通过导线连接；加热件设置于第一透镜的像侧面,用于将电能转化为热能,以加热所述第一透镜；端子模为中空的圆环形,与镜筒的底部外壁相配合；端子模与端子一体成型,端子模用于支撑端子并实现端子与镜筒间的绝缘。本发明结构简单,组装方便,可实现自动贴合,无需手动绕线连接且能自适应客户端电路板。(The invention discloses a camera module with a heating device, which comprises: a lens barrel including an object side end near an object side; the first lens is arranged at the object side end; and a heating device disposed in the lens barrel; the heating device comprises a heating element, a lead, a terminal die, a terminal and a circuit board; the terminal is attached to the power supply position of the circuit board to realize electric connection and is used for supplying power to the heating element; the heating element is connected with the terminal through a lead; the heating element is arranged on the image side surface of the first lens and used for converting electric energy into heat energy so as to heat the first lens; the terminal die is in a hollow annular shape and is matched with the outer wall of the bottom of the lens cone; the terminal mold is integrally formed with the terminal, and the terminal mold is used for supporting the terminal and realizing insulation between the terminal and the lens cone. The invention has simple structure and convenient assembly, can realize automatic lamination, does not need manual winding connection and can be self-adaptive to the client circuit board.)

1. The utility model provides a take heating device's module of making a video recording which characterized in that includes:

a lens barrel including an object side end near an object side;

a first lens disposed at the object side end; and

a heating device disposed within the lens barrel; the heating device comprises a heating element, a lead, a terminal die, a terminal and a circuit board; the terminal is attached to the power supply position of the circuit board, is electrically connected and is used for supplying power to the heating element; the heating element and the terminal are connected through the lead; the heating element is arranged on the image side surface of the first lens and used for converting electric energy into heat energy so as to heat the first lens; the terminal die is in a hollow annular shape and is matched with the outer wall of the bottom of the lens cone; the terminal die and the terminal are integrally formed, and the terminal die is used for supporting the terminal and realizing insulation between the terminal and the lens cone.

2. The camera module with the heating device according to claim 1, wherein the lens barrel is provided with a through hole, the through hole penetrates through the lens barrel, the wire penetrates through the through hole, one end of the wire is connected with the heating member, and the other end of the wire is connected with the terminal through conductive silver paste.

3. The camera module with the heating device according to claim 1, wherein an insulating glue is disposed in the terminal mold, the terminal mold is engaged with the bottom end of the lens barrel, and the insulating glue is used for fixing the end of the wire and ensuring normal energization in the heating process.

4. The camera module with heating device of claim 1, wherein the terminal is made of elastic and conductive material; the terminal is in a linear or sheet shape; the terminal die is made of insulating materials.

5. The camera module with the heating device according to claim 1, further comprising a front cover and a sealing ring; the front cover is arranged at the object side end of the lens barrel to provide pressing force for the first lens and the heating element; the sealing ring is arranged among the outer diameter surface of the first lens, the lens barrel and the area limited by the front cover and is used for preventing water and dust.

6. The camera module with the heating device according to claim 1, wherein the first lens comprises an object side surface, an image side surface and an outer diameter surface; the image side surface of the first lens includes an optically active area and a non-optically active area, and the heating element is within the non-optically active area.

7. The camera module with the heating device according to claim 6, wherein the heating member is a heating sheet attached to the non-optically effective area to heat the first lens.

8. The camera module with the heating device according to claim 6, wherein the heating element is a conductive adhesive, and the conductive adhesive is attached to the non-optical effective area to heat the first lens.

9. The camera module with the heating device according to claim 1, wherein a first insulating glue and a second insulating glue are arranged in the terminal die, the first insulating glue is located between the lens barrel and the lead, a through hole for the lead to pass through is formed in an inner cavity of the terminal die, and the second insulating glue is located at the bottom of the through hole in the terminal die.

10. The camera module with the heating device according to claim 1, wherein the lens barrel includes an object side end sidewall, a transverse end surface, and an inner cavity sidewall near an object side end, the object side end sidewall is disposed around the transverse end surface, the inner cavity sidewall and the transverse end surface jointly define the first lens mounting cavity, and the first lens is disposed in the first lens mounting cavity.

Technical Field

The invention relates to the technical field of camera devices, in particular to a camera module with a heating device.

Background

With the development of science and technology, the use of the lens is more and more extensive, and the use scenes and the environment are more and more complicated, so that the requirement on the lens is higher and higher. For example, lenses applied outdoors include outdoor monitoring lenses, license plate electronic identification lenses in parking lots, vehicle-mounted lenses, and the like, and since a layer of water mist or frost is generated on the surface of the lens when the temperature difference of the use environment is greatly changed when the lens is exposed outdoors, the use of the lens is greatly influenced by the phenomenon, and even a great potential safety hazard may be generated in some application scenes, the lens is required to have a heating function to realize defogging and defrosting.

In the prior art, most of heating lenses at present adopt a circuit board which extends out of a lead and is connected with a client to provide a power supply so as to achieve the heating effect, and the mode needs manual winding connection, so that the operation is complex, the efficiency is low, and the unstable connection can cause unstable heating performance.

Disclosure of Invention

Therefore, the invention aims to provide the camera module with the heating device, which is simple in structure, convenient to assemble, capable of realizing automatic lamination, free of manual winding connection and capable of being adaptive to the client circuit board.

The embodiment of the invention implements the above object by the following technical scheme.

The utility model provides a take heating device's module of making a video recording, includes:

a lens barrel including an object side end near an object side;

a first lens disposed at the object side end; and

a heating device disposed within the lens barrel; the heating device comprises a heating element, a lead, a terminal die, a terminal and a circuit board; the terminal is attached to the power supply position of the circuit board, is electrically connected and is used for supplying power to the heating element; the heating element and the terminal are connected through the lead; the heating element is arranged on the image side surface of the first lens and used for converting electric energy into heat energy so as to heat the first lens; the terminal die is in a hollow annular shape and is matched with the outer wall of the bottom of the lens cone; the terminal die and the terminal are integrally formed, and the terminal die is used for supporting the terminal and realizing insulation between the terminal and the lens cone.

Compared with the prior art, the camera module with the heating device provided by the invention has the advantages that the terminal and the circuit board of the client side can be automatically attached in the assembling process without manual winding connection; the heating member passes through the wire with the terminal and connects, and the heating member acts on the image side of first lens, after the customer end starts the heating function, makes the heating member heating through simple and complete electrically conductive connected mode to directly transmit heat energy to first lens, thereby realize the effect of automatic defogging defrosting under environment such as humidity and low temperature. The camera module with the heating device provided by the embodiment of the invention has the advantages of simple and compact structure, ingenious design, small occupied space of the heating element, simple and convenient assembly, high yield, stable and reliable heating performance, low cost and excellent lens imaging quality, and the elastic terminal can be adaptive to the installation position of the client circuit board to ensure stable contact with the client circuit board, so that stable electric connection is realized without manual wiring operation.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural diagram of a camera module with a heating device according to a first embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a heating element of a camera module with a heating device according to a first embodiment of the present invention at a first viewing angle.

Fig. 3 is a schematic structural diagram of a heating element of the camera module with a heating device according to the first embodiment of the present invention at a second viewing angle.

Fig. 4 is an exploded view of an axial section of a camera module with a heating device according to a first embodiment of the present invention.

Fig. 5 is a schematic structural diagram of a camera module with a heating device according to a second embodiment of the present invention.

Fig. 6 is a schematic view of a heating element of a camera module with a heating device according to a second embodiment of the present invention at a first viewing angle.

Fig. 7 is a schematic view of a heating element of a camera module with a heating device according to a second embodiment of the present invention at a second viewing angle.

Detailed Description

In order to make the objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. Several embodiments of the invention are presented in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Like reference numerals refer to like elements throughout the specification.

First embodiment

As shown in fig. 1, 2, 3 and 4, the camera module 100 with a heating device according to the first embodiment of the present invention includes a sealing ring 110, a front cover 120, a lens barrel 130, a first lens 140, a heating device 150 and an imaging element 160, wherein the lens barrel 130 is used for assembling components such as lenses and includes an object side end 132; the first lens 140 is a first lens for imaging, and is disposed at the object side end 132, and the first lens 140 includes an object side surface 141, an image side surface 142, and an outer diameter surface 143; the heating device 150 comprises an insulating glue 151, a conductive silver adhesive 152, a heating element 153, a conducting wire 154, a circuit board 155, a terminal 156 and a terminal die 157, wherein the heating element 153 is directly attached to the image side surface 142 of the first lens to heat the first lens 140; the front cover 120 is disposed on the object side 141 to provide a pressing force to the first lens 140 and the heating device 150; the sealing ring 110 is disposed in a space formed by the outer diameter surface 143, the lens barrel 130 and the front cover 120, and is used for preventing water and dust; the imaging element 160 is disposed on the circuit board 155, the circuit board 155 is attached to the terminal 156, and the imaging element 160 is configured to convert an optical image formed by the camera module with a heating device into an electrical signal.

As shown in fig. 2, the image side 142 includes an optically active area 1421 and a non-optically active area 1422, the optically active area 1421 being used for optical imaging; the non-optically active area 1422 cooperates with the bezel 120; the outer diameter surface 143 mates with the barrel 130. The heating member 153 is disposed in the optically inactive area 1422. The heating element 153 may be a heating sheet or a conductive adhesive, and the heating sheet or the conductive adhesive is attached to the non-optical effective region 1422 to heat the first lens 140.

As shown in fig. 1, 2, 3, and 4, one end of the lens barrel 130 close to the object side includes an object side end wall 133, a transverse end surface 134, and an inner cavity side wall 135, the object side end wall 133 is disposed around the transverse end surface 134, the inner cavity side wall 135 and the transverse end surface 134 jointly define the first lens installation cavity, and the first lens 140 is disposed in the first lens installation cavity; the object-side end wall 133, the transverse end surface 134, the outer diameter surface 143, and the front cover 120 define an installation space for the gasket 110, which is waterproof and dustproof; the heating element 153 is attached to the transverse end face 134; the lens barrel 130 is provided with two through holes 131, and the through holes 131 penetrate through the lens barrel 130 for the lead 154 to pass through.

As shown in fig. 1, 2, 3 and 4, the top end of the conductive wire 154 is attached to the heating element 153, the bottom end of the conductive wire 154 is attached to the conductive silver paste 152, and the conductive silver paste 152 is attached to the insulating paste 151 and is attached to the terminal 156. The terminal 156 is in a strip shape or a sheet shape and is integrated with the terminal die 157 in an injection molding way; the terminal die 157 is a hollow circular ring, is matched with the outer wall of the bottom of the lens barrel 130, and is installed at the bottom of the image side end of the lens barrel 130, a through hole is formed in the terminal die 157, so that the conductive silver adhesive 152 and the insulating adhesive 151 are conveniently arranged, the insulating adhesive 151 is arranged above the conductive silver adhesive 152, and the terminal 156 is attached to and connected with the circuit board 155. The terminal die 157 is made of an insulator, and is used for realizing the insulation between the terminal 156 and the lens barrel 130 on one hand, and on the other hand, the terminal die 157 and the terminal 156 are molded into a whole by injection to play a supporting role.

The camera module 100 with the heating device is convenient to assemble, simple in electric connection mode of the heating element, free of manual winding operation at a client, cost-saving, stable in performance and small in occupied space, when the circuit board 155 of the client is installed at the client, the power supply device of the temperature control system of the client can be attached to and connected with the terminal 156 to communicate a circuit, other operations are not needed, the terminal die 157 can be adaptive to the installation position of the circuit board of the client, the structure is simple, automation can be achieved, the heating performance is guaranteed to be stable, and therefore the automatic defogging and defrosting functions of a lens are achieved.

In the present embodiment, as shown in fig. 2 and fig. 3, the material of the conductive wire 154 is a material having a conductive property, such as a metal material. The conductive wire 154 is used to connect the conductive silver paste 152 and the heating member 153, the terminal 156 is used to connect the conductive silver paste 152 and the circuit board 155, and the terminal 156 is made of an elastic and conductive material. The temperature control system circuit of the circuit board 155 first energizes the terminal 156, then the current passes through the conductive silver paste 152 and then reaches the heating member 153 through the wire 154, so that the heating member 153 can be heated to generate heat, and the heat energy is transferred to the first lens 140, and finally the defogging and defrosting effects are achieved.

As shown in fig. 4, in the present embodiment, the lens barrel 130 is provided with two through holes 131, and the through holes 131 penetrate through the lens barrel 130 for the lead wires 154 to pass through, so as to form a complete heating element circuit.

As shown in fig. 1 and 4, in this embodiment, the camera module 100 with a heating device further includes a front cover 120, the front cover 120 is disposed at an object-side end 132 of the lens barrel 130 to provide a pressing force to the first lens 140 and the heating member 153, fix the first lens 140 to the object-side end 132 of the lens barrel 130, and press the heating member 153 between the first lens 140 and the lens barrel 130, so that the heating member 153 is tightly attached to an image-side surface 142 of the first lens 140.

As shown in fig. 1 and 4, in some embodiments, the imaging module with heating device 100 further includes a sealing ring 110, and the sealing ring 110 may be disposed in a mounting space defined by the object-side end wall 133, the transverse end surface 134, the outer diameter surface 143, and the front cover 120 of the lens barrel 130, for preventing water and dust; the sealing ring 110 is deformed by acting force in each direction, and the deformed sealing ring 110 is tightly attached to the contact surface in each direction, so that external water vapor and dust can be prevented from entering the inside of the lens to enable the lens in the lens to generate water vapor, and the phenomenon of imaging blurring can be avoided.

As shown in fig. 1 and 4, in some embodiments, the circuit board 155 is accommodated at the image side end of the lens barrel 130, the circuit board 155 may include a temperature control system circuit (not shown), and the circuit board 155 is connected to the heating member 153 through the terminal 156, the conductive silver paste 152, and the lead 154 to form a complete circuit connection, so as to heat the heating member 153. The imaging element 160 is disposed on the circuit board 155 and is accommodated at the image side end of the lens barrel 130, and the imaging element 160 is configured to receive light passing through the lens and convert an optical image formed by the optical lens into an electrical signal.

Second embodiment

As shown in fig. 5, 6 and 7, the imaging module 200 with a heating device according to the second embodiment of the present invention includes a lens barrel 130, a first lens 140, and a heating device 250. The camera module 200 with a heating device of the present embodiment is substantially the same as the camera module 100 with a heating device of the first embodiment in structure, except for the form and mounting manner of the terminals 256 and 257 in the heating member.

In this embodiment, the other components are the same as those in the first embodiment in form, function and installation manner, and only the differences are described in this embodiment, in which the heating device 250 includes a first insulating paste 2511, a conductive silver paste 152, a second insulating paste 2512, a heating element 153, a lead wire 154, a terminal 256, and a terminal die 257. The terminal die 257 is annular and can be matched with the outer wall of the bottom of the lens barrel 130, a through hole is formed in the inner cavity of the terminal die 257 for the lead 154 to pass through, and meanwhile, in order to ensure that the through hole of the terminal die 257 and the through hole of the lens barrel 130 are on the same axis, a positioning pin and a positioning groove (not shown) are formed in the terminal die 257 and the lens barrel 130. After the lead 154 penetrates into the terminal die 257, in order to ensure that the conductive part of the lead 154 does not contact with the lens barrel 130 and ensure good energization in the heating process, a first insulating adhesive 2511 is arranged at the middle point between the terminal die 257 and the lead, and in order to facilitate dispensing, dispensing holes are formed in the terminal die 257. The terminal die 257 and the terminal 256 are integrated during manufacturing, and the rest of the terminal die 257 except for the terminal 256 is insulating. In order to ensure the external insulation of the whole lens, a second insulating glue 2512 is dotted at the bottom of the through hole of the terminal die 257. The terminal die 257 mainly functions as an insulator and a support for the terminals 256.

As shown in fig. 7, the conductive wires 154 and the terminals 256 are electrically connected by the point conductive silver paste 152. To ensure the relative position of the terminals 256 and the terminal dies 257, the terminals 256 are provided with bending positioning structures. The terminal 256 is a sheet metal part, is simple to form and is easy to manufacture. And the terminals 256 are injection molded with the terminal mold 257 as one body.

As shown in fig. 5, 6, and 7, in this embodiment, the circuit board of the client is in a concave shape, the imaging chip is located at the concave bottom of the circuit board, the temperature control system circuit is located on the concave side wall of the circuit board, and can be matched with the terminal die 257 to be electrically connected to the terminal 256 on the terminal die 257, the terminal 256 is electrically connected to the conductive silver paste 152, the conductive silver paste 152 is electrically connected to the wire 154, the wire 154 is electrically connected to the heating element 153, so as to complete a closed circuit, the heating element 153 works to convert electric energy into heat energy, the heating element 153 is directly attached to the first lens 140, and the heat energy is transferred to the first lens 140, thereby achieving an automatic defogging and defrosting effect.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.