Industrial camera and machine vision device

Abstract

The invention discloses an industrial camera which comprises a camera shell, a sensor circuit board assembly and a mainboard assembly, a photosensitive through hole is formed in the camera shell, and the sensor circuit board assembly and the mainboard assembly are both arranged in the camera shell. The sensor circuit board assembly is provided with a photosensitive through hole, the photosensitive surface of the sensor circuit board assembly faces the photosensitive through hole, the mainboard assembly is located on one side, deviating from the photosensitive through hole, of the sensor circuit board assembly, and the industrial camera is characterized in that the industrial camera further comprises an expansion circuit board which is arranged on the periphery of the mainboard assembly, the extension circuit board is arranged in the camera shell, the wiring surface of the extension circuit board is opposite to the side wall of the camera shell, the extension circuit board is electrically connected with the mainboard assembly and the sensor circuit board assembly, and the wiring surface is used for arranging electronic elements. The invention further provides machine vision equipment.

Description

Technical Field

[0001] The present application relates to the field of machine vision equipment, and in particular, to an industrial camera and a machine vision equipment comprising the industrial camera. Background Art

[0002] Industrial cameras are a common machine vision device that can be used to inspect workpieces to determine whether they are qualified.

[0003] As the functions of industrial cameras increase, the number of various circuit boards inside industrial cameras is also gradually increasing. How to arrange multiple circuit boards within a limited workpiece is a technical problem that needs to be solved urgently in this field. Summary of the Invention

[0004] The present application aims to solve one of the technical problems in the related art to a certain extent. To this end, the present application provides an industrial camera and a machine vision device including the industrial camera.

[0005] In order to achieve the above-mentioned purpose, as a first aspect of the present application, an industrial camera is provided, which includes a camera housing, a sensor circuit board assembly and a main board assembly, a photosensitive through-hole being formed on the camera housing, the sensor circuit board assembly and the main board assembly being both arranged in the camera housing, the photosensitive surface of the sensor circuit board assembly facing the photosensitive through-hole, and the main board assembly being located on the side of the sensor circuit board assembly away from the photosensitive through-hole, wherein the industrial camera also includes an extension circuit board, which is arranged on the periphery of the main board assembly, and the wiring surface of the extension circuit board is opposite to the side wall of the camera housing, the extension circuit board is electrically connected to the main board assembly and the sensor circuit board assembly, and the wiring surface is used for setting electronic components.

[0006] Optionally, the extended circuit board includes an extended thermally conductive bracket and an extended flexible circuit board, the extended thermally conductive bracket is arranged on the periphery of the mainboard assembly and connected to the camera housing, and the extended flexible circuit board is attached to the surface of the extended thermally conductive bracket facing the side wall of the camera housing;

[0007] The surface of the extended flexible circuit board facing the side wall of the camera housing is the wiring surface, and the extended flexible circuit board is electrically connected to the mainboard assembly.

[0008] Optionally, the extended thermally conductive bracket includes a first side plate, a second side plate and a connecting side plate connected between the first side plate and the second side plate, and the first side plate, the second side plate, and the connecting side plate are respectively opposite to corresponding side walls of the camera housing.

[0009] Optionally, the extended heat conduction bracket further includes two mounting connectors which are respectively arranged at the rear ends of the first side plate and the second side plate, and the mounting connectors are detachably connected to the rear end portion of the camera housing.

[0010] Optionally, the extended heat conduction bracket further includes a first guiding plate and a second guiding plate. The first guiding plate is arranged at one end of the first side plate facing the sensor circuit board assembly, and the second guiding plate is arranged at one end of the second side plate facing the sensor circuit board assembly. The sensor circuit board assembly is located between the first guiding plate and the second guiding plate. The sensor circuit board assembly is electrically connected to the first guiding plate through a first heat conducting member, and the sensor circuit board assembly is electrically connected to the second guiding plate through a second heat conducting member.

[0011] Optionally, in the direction from the main board assembly to the sensor circuit board assembly, the distance between the first guiding plate and the second guiding plate gradually increases.

[0012] Optionally, the extended flexible circuit board includes a flexible circuit board main body and a flexible connection circuit board. The flexible circuit board main body is attached to the extended heat conduction bracket. One end of the flexible connection circuit board is electrically connected to the flexible circuit board main body, and the other end of the flexible connection circuit board is provided with a first electrical connector which is electrically connected to a second electrical connector on the interface board.

[0013] Optionally, the main board assembly includes a main board connection structure, a multi-layer main board, and at least one main board heat dissipation member. The connection structure fixedly connects the multi-layer main boards, and there is a gap between adjacent two main boards. At least one main board is provided with the main board heat dissipation member. The main board heat dissipation member is connected to the extended circuit board, and a heat conducting member is arranged between adjacent two main boards.

[0014] Optionally, the main board heat dissipation member is arranged on the main board adjacent to the sensor circuit board assembly.

[0015] Optionally, the main board connection structure includes a main board connection flexible circuit board and a plurality of connection columns. Any adjacent two layers of the main boards are electrically connected through the corresponding main board connection flexible circuit board, and the connection columns sequentially penetrate through each layer of the main boards and fixedly connect the main boards.

[0016] Optionally, a heat insulation member is arranged between the sensor circuit board assembly and the main board assembly.

[0017] Optionally, the sensor circuit board assembly includes a sensor circuit board, a sensor, a sensor heating film, and a sensor heat sink. The sensor is disposed on the sensor circuit board, and the photosensitive surface of the sensor forms the photosensitive surface of the sensor circuit board assembly. The sensor heating film is disposed on a side of the sensor circuit board facing away from the sensor, and the sensor heat sink is disposed on a side of the sensor heating film facing away from the sensor circuit board;

[0018] The sensor circuit board and the sensor heating film are electrically connected to the main board assembly through the extension circuit board.

[0019] Optionally, the camera housing includes a camera housing front cover, a camera housing middle frame, and a camera housing rear cover. The camera housing middle frame is connected between the camera housing front cover and the camera housing rear cover;

[0020] The photosensitive through hole is formed in the camera housing front cover;

[0021] The main board assembly and the extension circuit board are fixedly connected to the camera housing rear cover.

[0022] Optionally, the camera housing front cover includes a front cover body and a lens mount. The photosensitive through hole is formed in the front cover body and is connected to the camera housing middle frame. The lens mount is disposed around the photosensitive through hole, and the lens mount is located on a side of the front cover body facing away from the camera housing middle frame.

[0023] Optionally, the camera housing further includes a first housing sealing ring. The first housing sealing ring is disposed between the camera housing middle frame and the camera housing rear cover.

[0024] Optionally, the first housing sealing ring includes a first base ring and a plurality of first positioning members. The plurality of first positioning members are disposed on the first base ring. First positioning holes are formed in the first positioning members. A plurality of first positioning posts are formed on one of the camera housing middle frame and the camera housing rear cover. The plurality of first positioning posts correspond to the plurality of first positioning members one by one, and the first positioning posts are inserted into the first positioning holes on the corresponding first positioning members.

[0025] Optionally, the camera housing further includes a second housing sealing ring. The second housing sealing ring is disposed between the camera housing middle frame and the camera housing front cover.

[0026] Optionally, the second housing sealing ring includes a second base ring and a plurality of second positioning members. The plurality of second positioning members are disposed on the second base ring. Second positioning holes are formed on the second positioning members. One of the camera housing middle frame and the camera housing front cover is formed with a plurality of second positioning posts. The plurality of second positioning posts correspond to the plurality of second positioning members one by one. The second positioning posts are inserted into the second positioning holes on the corresponding second positioning members.

[0027] Optionally, a lens module control port is formed on the rear cover of the camera housing. A light source control terminal and a lens control terminal are disposed in the lens module control port.

[0028] The industrial camera further includes an interface board. A light source energy control signal output terminal electrically connected to the light source control terminal and a lens control signal output terminal electrically connected to the lens control terminal are disposed on the interface board.

[0029] As a second aspect of the present application, a machine vision device is provided. The machine vision device includes an industrial camera and a lens module. The lens module is disposed at the front end of the camera housing, and the light exit hole of the lens module is aligned with the photosensitive through hole. Among them, the industrial camera is the industrial camera provided in the first aspect of the present application.

[0030] Optionally, the lens module includes a lens hood, a light source assembly, and a lens assembly. The light exit hole of the lens module is formed at the rear end of the lens hood. The light source assembly and the lens assembly can both be disposed in the lens hood, and the light source assembly is disposed around the light entrance hole of the lens hood. The lens assembly is used to guide the light incident from the light entrance hole of the lens hood to the light exit hole of the lens module.

[0031] A lens module control port is formed at the rear end of the camera housing. A light source control terminal and a lens control terminal are disposed in the lens module control port.

[0032] The industrial camera includes an interface board. A light source energy control signal output terminal electrically connected to the light source control terminal and a lens control signal output terminal electrically connected to the lens control terminal are disposed on the interface board.

[0033] The light source signal output terminal is electrically connected to the light source assembly, and the lens control signal output terminal is electrically connected to the lens assembly.

[0034] In the embodiment of the present application, by providing an extended circuit board in the space between the main board assembly and the side wall of the camera housing, the number of circuit boards can be increased without increasing the overall volume of the industrial camera, so that more electronic components can be arranged inside the industrial camera to allow the industrial camera to implement more functions.

[0035] These features and advantages of the present application will be disclosed in detail in the following specific embodiments and the accompanying drawings. The best embodiments or means of the present application will be shown in detail in combination with the accompanying drawings, but it is not a limitation to the technical solution of the present application. In addition, these features, elements, and components that appear in each of the following text and drawings are multiple, and different symbols or numbers are marked for convenience of representation, but all represent components with the same or similar structures or functions. Description of the Drawings

[0036] The present application will be further described below in conjunction with the accompanying drawings:

[0037] Figure 1 is the overall appearance diagram of the industrial camera provided by the embodiment of the present application;

[0038] Figure 2 is the exploded schematic diagram of the industrial camera provided by the embodiment of the present application;

[0039] Figure 3 is the combined structural schematic diagram of the sensor circuit board assembly, the expansion circuit board, the main board assembly, and the interface board;

[0040] Figure 4 is the structural schematic diagram of the expansion flexible circuit board;

[0041] Figure 5 and Figure 6 is the structural schematic diagram of the expansion bracket, where Figure 5 and Figure 6 have different perspectives;

[0042] Figure 7 is the structural schematic diagram of the first housing seal ring;

[0043] Figure 8 is the schematic diagram of some components on the main board assembly and the sensor circuit board assembly;

[0044] Figure 9 is the exploded schematic diagram showing the sensor circuit board assembly, the expansion circuit board, the main board assembly, and the interface board;

[0045] Figure 10 is the overall appearance diagram of the machine vision device provided by the embodiment of the present application;

[0046] Figure 11 is the exploded schematic diagram of the machine vision device provided by the embodiment of the present application.

[0047] Among them, the reference numerals are as follows:

[0048] 100: Camera housing 110: Front cover of the camera housing

[0049] 111: Front cover body 112: Lens mounting seat

[0050] 120: Camera housing middle frame 130: Camera housing rear cover

[0051] 200: Sensor circuit board assembly 210: Sensor circuit board

[0052] 220: Sensor 230: Sensor heating film

[0053] 240: Sensor heat dissipation component 300: Main board assembly

[0054] 320: Main board connection structure 321: Main board connection flexible circuit board

[0055] 400: Expansion circuit board 410: Expansion heat conduction bracket

[0056] 411: First side plate 412: Second side plate

[0057] 413: Connecting side plate 420: Expansion flexible circuit board

[0058] 421: Flexible circuit board body 422: Flexible connection circuit board

[0059] 330: Main board heat dissipation component 500: Interface board

[0060] 600: Double-strand wire 700: Lens module

[0061] 710: Light source component 720: Lens component

[0062] 423: Power connection wire Detailed implementation manner

[0063] The embodiments of the present application will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. Based on the embodiments in the implementation manner, it is intended to explain the present application and should not be construed as a limitation to the present application.

[0064] As used in this specification, the phrase "in one embodiment" or "instance" or "example" means that the specific features, structures, or characteristics described in connection with the embodiment itself may be included in at least one embodiment disclosed in the present application. The appearance of the phrase "in one embodiment" at various positions in the specification does not necessarily refer to the same embodiment.

[0065] For the convenience of description, in the embodiments of the present application, the "front" refers to the direction towards which the photosensitive surface of the sensor circuit board assembly faces, and the "rear" in the embodiments of the present application refers to the direction opposite to the above-mentioned "front".

[0066] As a first aspect of the present application, an industrial camera is provided. Figure 1 、 Figure 2 and Figure 3 As shown, the industrial camera includes a camera housing 100, a sensor circuit board assembly 200, and a mainboard assembly 300. A light-sensitive through-hole is formed on the camera housing 100, and the sensor circuit board assembly 200 and the mainboard assembly 300 are both disposed in the camera housing 100. The light-sensitive surface of the sensor circuit board assembly 200 faces the light-sensitive through-hole, and the mainboard assembly 300 is located on the side of the sensor circuit board assembly 200 that is away from the light-sensitive through-hole.

[0067] The industrial camera also includes an extension circuit board 400, which is arranged on the periphery of the main board assembly 300, and the wiring surface of the extension circuit board 400 is opposite to the side wall of the camera housing 100. The extension circuit board 400 is electrically connected to the main board assembly 300 and the sensor circuit board assembly 200, and the wiring surface is used to set electronic components.

[0068] In an embodiment of the present application, by setting an extended circuit board 400 in the interval between the mainboard assembly 300 and the side wall of the camera housing 100, the number of circuit boards can be increased without increasing the overall volume of the industrial camera, so that more electronic components can be arranged inside the industrial camera to allow the industrial camera to achieve more functions.

[0069] In the embodiment of the present application, the specific structure of the expansion circuit board 400 is not particularly limited, as long as the expansion circuit board 400 has a certain rigidity and maintains a certain shape so as to be stably disposed in the gap between the main board assembly 300 and the side wall of the camera housing 100. As an optional embodiment, Figure 2 As shown, the extended circuit board 400 includes an extended thermal conductive bracket 410 and an extended flexible circuit board 420. The extended thermal conductive bracket 410 is arranged on the periphery of the mainboard assembly 300 and is connected to the camera housing 100. The extended flexible circuit board 420 is attached to the surface of the extended thermal conductive bracket 410 facing the side wall of the camera housing 100. The surface of the extended flexible circuit board 420 facing the side wall of the camera housing 100 is the wiring surface. Figure 2 It can be seen that a plurality of electronic components are disposed on the extended flexible circuit board 420. Furthermore, the extended flexible circuit board 420 is electrically connected to the mainboard assembly 300.

[0070] The heat generated by the expandable flexible circuit board 420 can be transferred to the camera housing 100 by extending the heat-conducting bracket 410, thereby improving the overall heat dissipation performance of the industrial camera.

[0071] In the embodiments of the present application, no special limitation is imposed on the specific structure of the extended heat dissipation bracket 410, as long as it has good heat dissipation performance and can be disposed in the space between the main board assembly 300 and the camera housing 100. For the convenience of layout, the shape of the extended heat dissipation bracket 410 is adapted to the internal shape of the camera housing 100. For example, the inner side wall of the camera housing 100 is a cylindrical surface, and correspondingly, the outer surface of the extended heat dissipation bracket 410 is also a cylindrical surface.

[0072] As another alternative embodiment, the inner side wall surface of the camera housing 100 is a plane, and correspondingly, as Figure 5 and Figure 6 shown, the extended heat dissipation bracket 410 includes a first side plate 411, a second side plate 412, and a connecting side plate 413 connected between the first side plate 411 and the second side plate 412. The first side plate 411, the second side plate 412, and the connecting side plate 413 are respectively opposite to the corresponding side walls of the camera housing 100.

[0073] In the embodiments of the present application, the extended heat dissipation bracket 410 is not in a closed prism shape, which facilitates the assembly of the main board assembly 300 and the layout of other wiring.

[0074] As described above, an important function of the extended heat dissipation bracket 410 is heat dissipation. Therefore, a metal material with good heat conduction performance (such as copper) can be used to manufacture the extended heat dissipation bracket 410. In the embodiments of the present application, no special limitation is imposed on how to realize the connection between the extended heat dissipation bracket 410 and the camera housing 100, as long as the heat on the extended heat dissipation bracket 410 can be transferred to the camera housing 100. For example, a heat conducting member (the heat conducting member can be heat conducting glue or heat conducting foam) can be disposed between at least one of the first side plate 411, the second side plate 412, and the connecting side plate 413 and the inner side wall of the camera housing 100.

[0075] In the embodiments of the present application, the extended heat dissipation bracket 410 is fixedly installed on the camera housing 100. As an alternative embodiment, the extended heat dissipation bracket 410 further includes two mounting connectors 414, which are respectively disposed at the rear ends of the first side plate 411 and the second side plate 412, and detachably connect the first side plate 411 and the second side plate 412 to the rear end portion of the camera housing respectively.

[0076] By providing the mounting connectors 414, not only can the heat on the extended heat dissipation bracket 410 be transferred to the camera housing 100, but also a stable connection between the extended heat dissipation bracket 410 and the camera housing 100 can be achieved.

[0077] As described above, the extended heat-conducting bracket 410 can also be connected to the camera housing 100 through heat-conducting components to improve the heat dissipation performance. Specifically, the extended heat-conducting bracket 410 can further include a first guiding plate 415 and a second guiding plate 416. The first guiding plate 415 is disposed at one end of the first side plate 411 facing the sensor circuit board assembly 200, and the second guiding plate 416 is disposed at one end of the second side plate 412 facing the sensor circuit board assembly. The sensor circuit board assembly 200 is located between the first guiding plate 415 and the second guiding plate 416.

[0078] The sensor circuit board assembly 200 is electrically connected to the first guiding plate 415 through a first heat-conducting member, and the sensor circuit board assembly 200 is electrically connected to the second guiding plate 416 through a second heat-conducting member.

[0079] The heat generated by the sensor circuit board assembly 200 can be transferred to the extended heat-conducting bracket 410 through the first heat-conducting member and the second heat-conducting member, and conducted to the camera housing 100 by the extended heat-conducting bracket 410.

[0080] As an alternative embodiment, both the first heat-conducting member and the second heat-conducting member can be heat-conducting foam.

[0081] During assembly, the first heat-conducting member and the second heat-conducting member can be first attached to the heat-dissipating member of the sensor circuit board assembly, and then the sensor circuit board assembly can be assembled together with the main board assembly and the extended circuit board. To facilitate assembly and prevent scratching of the first heat-conducting member and the second heat-conducting member, optionally, in the direction from the main board assembly 300 to the sensor circuit board assembly 200 (i.e., the direction from back to front), the distance between the first guiding plate 415 and the second guiding plate 416 gradually increases. In other words, the first guiding plate 415 and the second guiding plate 416 form a substantially flared shape.

[0082] As an alternative embodiment, the extended heat-conducting bracket 410 is an integrally formed sheet metal part.

[0083] In the embodiments of the present application, the specific structure of the extended flexible circuit board 420 is not particularly limited as long as it can be attached to the extended heat-conducting bracket 410.

[0084] To facilitate electrical connection of the extended flexible circuit board 420 to the sensor circuit board assembly 200 and the main board assembly 300, optionally, as Figure 4As shown, the extended flexible circuit board 420 may include a flexible circuit board body 421 and a flexible connection circuit board. The flexible circuit board body 421 is attached to the extended heat conduction bracket 410. One end of the flexible connection circuit board 422 is electrically connected to the flexible circuit board body 421, and a first electrical connector is provided at the other end of the flexible connection circuit board 421. The first electrical connector is electrically connected to a second electrical connector on the interface board 500.

[0085] As shown in the figure, the extended flexible circuit board 420 further includes a power connection line 423. One end of the power connection line 423 is electrically connected to the flexible circuit board body 421, and the other end is used to be electrically connected to the power input terminal of the industrial camera.

[0086] In the embodiment of the present application, the flexible connection circuit board 422 has a certain length, and can be electrically connected to the interface board by folding the flexible connection circuit board 422. In the embodiment of the present application, the shape of the flexible connection circuit board 422 is strip-shaped, and no special limitation is imposed on the specific length of the flexible connection circuit board 422, as long as it is convenient for electrical connection to the interface board.

[0087] In the embodiment of the present application, no special limitation is imposed on the specific structure of the main board assembly 300, as long as it can implement the various functions of the industrial camera. Optionally, as Figure 8 shown, the main board assembly 300 includes a main board connection structure 320, a multi-layer main board, and at least one main board heat dissipation member 330. The main board connection structure fixedly connects the multi-layer main boards, and there is a gap between adjacent two main boards. At least one main board is provided with a main board heat dissipation member 330, the main board heat dissipation member 330 is connected to the extended circuit board 400, and a heat conduction member is provided between adjacent two main boards.

[0088] A heat conduction member is provided between adjacent two main boards, so that the heat generated by each main board can be collected to the main board heat dissipation member 330, and the main board heat dissipation member 330 conducts the heat to the extended circuit board 400, and finally the extended circuit board 400 conducts the heat to the camera housing 100.

[0089] In the embodiment of the present application, no special limitation is imposed on the number and position of the main board heat dissipation member 330, as long as it can dissipate heat from each main board. Optionally, a main board heat dissipation member 330 is provided on the main board adjacent to the sensor circuit board assembly 200. The sensor circuit board assembly 200 has a relatively high temperature during operation. Therefore, providing a main board heat dissipation member 330 on the main board adjacent to the sensor circuit board assembly 200 can better dissipate heat from the main board adjacent to the sensor circuit board assembly 200.

[0090] In the embodiments of the present application, no special limitation is imposed on the specific structure of the main board connection structure 320, as long as it can electrically connect each main board and enable each main board to be stacked in the front-back direction.

[0091] For the convenience of installation, optionally, as Figure 8 shown, the main board connection structure 320 includes at least one main board connection flexible circuit board 321 and a plurality of connection posts 322. The number of the main board connection flexible circuit boards 321 is one less than the number of the main boards, so that adjacent layers of main boards are electrically connected through the corresponding main board flexible circuit boards 321, and the connection posts 322 sequentially penetrate through each layer of the main boards and fixedly connect the main boards.

[0092] The principle and limitations of the above main board connection structure 320 will be described in detail in combination with specific embodiments below, and will not be elaborated here for the time being.

[0093] As described above, the sensor circuit board assembly 200 needs to work within a set temperature range to obtain an ideal imaging effect. To avoid the working temperature of the sensor circuit board assembly 200 from affecting the main board assembly 300, optionally, as Figure 9 shown, a heat insulation member 200a is provided between the sensor circuit board assembly 200 and the main board assembly 300.

[0094] In the embodiments of the present application, no special limitation is imposed on the specific structure of the sensor circuit board assembly 200, as long as it can implement the imaging function. Optionally, as Figure 9 shown, the sensor circuit board assembly 200 may include a sensor circuit board 210, a sensor 220, a sensor heating film 230, and a sensor heat dissipation member 240. The sensor 220 is disposed on the sensor circuit board 210, and the photosensitive surface of the sensor 220 forms the photosensitive surface of the sensor circuit board assembly 200. The sensor heating film 230 is disposed on the side of the sensor circuit board 210 facing away from the sensor 220, and the sensor heat dissipation member 240 is disposed on the side of the sensor heating film 230 facing away from the sensor circuit board 210.

[0095] The sensor circuit board 210 and the sensor heating film 230 are electrically connected to the main board assembly 300 through an extension circuit board 400. In the embodiments of the present application, the main board assembly 300 supplies power to and drives the sensor circuit board 210 and the sensor heating film 230 through the extension circuit board 400, and the sensor 220 can be driven through the sensor circuit board 210.

[0096] As an optional implementation manner, the sensor heating film 230 may be a flexible circuit board.

[0097] In the embodiments of the present application, the specific structure of the camera housing 100 is not particularly limited, as long as it can accommodate various components such as the sensor circuit board assembly 200, the main board assembly 300, the expansion circuit 400, and cooperate with the lens module. For example, the camera housing 100 may include a camera housing front cover 110, a camera housing middle frame 120, and a camera housing back cover 130, with the camera housing middle frame 120 connected between the camera housing front cover 110 and the camera housing back cover 130.

[0098] The photosensitive through hole is formed on the camera housing front cover 110 .

[0099] The mainboard assembly 300 and the expansion circuit board 400 are fixedly connected to the camera housing back cover 130 .

[0100] The camera housing 100 is configured as a split structure comprising a camera housing front cover 110, a camera housing middle frame 120, and a camera housing rear cover 130, making it easier to assemble the various components within the camera housing 100. Specifically, the mainboard assembly 300 and the expansion circuit board 400 can be first fixed to the camera housing rear cover 130. The camera housing middle frame 200 can then be placed over the expansion circuit board 400 and connected to the camera housing rear cover 130. Finally, the sensor circuit board assembly 200 and the camera housing front cover 110 can be assembled.

[0101] like Figure 2 As shown, the front cover 110 of the camera housing includes a front cover body 111 and a lens mounting seat 112. A photosensitive through hole is formed on the front cover body 111 and is connected to the camera housing middle frame 120. The lens mounting seat 112 is arranged around the photosensitive through hole, and the lens mounting seat 112 is located on the side of the front cover body 111 away from the camera housing middle frame 120.

[0102] The industrial camera provided in the embodiment of the present application cooperates with the lens module, and the lens of the lens module can be mounted on the lens mounting seat 112.

[0103] It should be noted that the camera housing 100 has good sealing performance. Figure 2 As shown, the camera housing 100 may further include a first housing sealing ring 140 , which is disposed between the camera housing middle frame 120 and the camera housing back cover 130 .

[0104] In the embodiment of the present application, the specific structure of the first housing sealing ring 140 is not particularly limited, as long as it can achieve sealing between the camera housing middle frame 120 and the camera housing back cover 130. Figure 7As shown, the first housing seal ring 140 may include a first base ring 141 and a plurality of first positioning members 142. The plurality of first positioning members 142 are disposed on the first base ring 141. First positioning holes are formed on the first positioning members 142. A plurality of first positioning posts 131 are formed on one of the camera housing middle frame 120 and the camera housing rear cover 10. The plurality of first positioning posts 131 correspond to the plurality of first positioning members 142 one by one. The first positioning posts 131 are inserted into the first positioning holes on the corresponding first positioning members.

[0105] By providing the first positioning members 142 on the first base ring 141, the first positioning members 142 can be pre - sleeved on the corresponding first positioning posts, avoiding accidental dropping of the first housing seal ring 140 when disassembling or assembling the camera housing 100.

[0106] In the embodiment provided in the figure, the first positioning posts 131 are disposed on the camera housing rear cover 130. Of course, the embodiments of the present application are not limited thereto, and the first positioning posts can also be disposed on the camera housing middle frame 120. In the embodiments of the present application, the first positioning members 142 are located on the first base ring 141 and protrude towards the inside of the first base ring 141, so as to ensure that the first base ring 141 seals the gap between the camera housing middle frame 120 and the camera housing rear cover 130.

[0107] In order to seal between the camera housing middle frame 120 and the camera housing front cover 130, the camera housing 100 further includes a second housing seal ring 150. The second housing seal ring 150 is disposed between the camera housing middle frame 120 and the camera housing front frame 110.

[0108] Similarly, the second housing seal ring 150 may also include a second base ring and a plurality of second positioning members. The plurality of second positioning members are disposed on the second base ring. Second positioning holes are formed on the second positioning members. A plurality of second positioning posts are formed on one of the camera housing middle frame 120 and the camera housing front cover 110. The plurality of second positioning posts correspond to the plurality of second positioning members one by one. The second positioning posts are inserted into the second positioning holes on the corresponding second positioning members 152.

[0109] By providing the second positioning members on the second base ring, the second positioning members can be pre - sleeved on the corresponding second positioning posts, avoiding accidental dropping of the second housing seal ring when disassembling or assembling the camera housing.

[0110] In the embodiment provided in the figure, the second positioning posts are disposed on the camera housing front cover 110. Of course, the embodiments of the present application are not limited thereto, and the second positioning posts can also be disposed on the camera housing middle frame 120. In the embodiments of the present application, the second positioning members are located on the second base ring and protrude towards the inside of the second base ring, so as to ensure that the second base ring seals the gap between the camera housing middle frame 120 and the camera housing front cover 110.

[0111] In an embodiment of the present application, the industrial camera cooperates with a lens module provided with a light source assembly. That is to say, the lens module includes a light source assembly 710 and a lens assembly 720. In order to improve the integration of the machine vision device including the industrial camera and the lens module, the control function of the light source assembly and the control function of the lens assembly can be integrated in the main board assembly 300.

[0112] Correspondingly, a lens module control port 132 is formed on the rear cover 130 of the camera housing, and a light source control terminal and a lens control terminal are provided in the lens module control port 132.

[0113] As Figure 3 shown, the industrial camera further includes an interface board 500. A light source energy control signal output terminal electrically connected to the light source control terminal and a lens control signal output terminal electrically connected to the lens control terminal are provided on the interface board 500.

[0114] It should be noted that the interface board 500 is also electrically connected to a main board integrated with a light source control function and a lens control function.

[0115] In an embodiment of the present application, the light source control terminal can be electrically connected to the light source assembly in the lens module through a wire, and the lens control terminal can be electrically connected to the lens assembly 720 in the lens module through a wire.

[0116] In order to improve the integration, the wire connected to the light source control terminal and the wire connected to the lens assembly can be encapsulated in the same wire housing to form a two-strand wire 600.

[0117] Optionally, in order to give a prompt to the operator, the industrial camera may further include a light guide column. A light guide column groove is formed on the rear cover of the camera housing of the industrial camera. The light guide column is arranged in the light guide column groove, and the gap between the light guide column and the light guide column groove is sealed by means of dotting. Among them, the sealing glue used can be a light-curing glue (i.e., UV glue).

[0118] The assembly process of the above-mentioned industrial camera will be introduced below in combination with the specific embodiments shown in the figures.

[0119] The assembly of the industrial camera mainly includes the assembly of the rear cover of the camera housing and related components, the assembly of the middle frame of the camera housing, and the assembly of the front cover of the camera housing and related components.

[0120] The assembly order of the camera housing back cover and related components is as follows: first, place the light guide column in the light guide column groove, and apply UV glue to the position of the light guide column groove in the camera housing back cover and cure it; prevent the first housing sealing ring from being placed in the corresponding first sealing ring receiving groove on the camera housing back cover, and use the first positioning column to pass through the first positioning piece on the first housing sealing ring; place the M8 aviation plug sealing gasket and the M12 aviation plug sealing gasket in the sealing groove at the bottom of the M8 aviation plug installation interface and the M12 aviation plug installation interface, and then install the first motherboard 3 with the M8 aviation plug and M12 aviation plug 15 is fixed on the back cover of the camera housing; then the POE thermal pad is attached to the POE of the second hard board 314 of the mainboard assembly, and then the flexible connection circuit board on the second mainboard 314 of the mainboard assembly is folded. It should be noted that the heat can be conducted to the M12 aviation plug and then to the back cover through the POE thermal pad; then the flexible connection circuit board on the third mainboard 313 is folded, and the PHY thermal pad is attached to the PHY of the third mainboard 313; the FPGA thermal pad is attached to the FPGA of the fourth mainboard 312, and the mainboard heat sink 330 is placed on the fourth mainboard The flexible connection circuit board on the fourth main board 312 is folded onto the limit tab on the first main board 312, and thermal conductive foam is pasted on both sides of the main board heat sink 330. Then, the thermal insulation foam is pasted on the inner side of the sensor board heat sink 240, and the sensor heating film 230 is pasted on the outer side of the sensor board heat sink 240. The thermal conductive pad 250 is pasted on the sensor heating film 230, and then the sensor board heat sink 240 is placed on the limit tab of the fifth main board 311 of the main board assembly, and the sensor heating film 230 is inserted into the corresponding seat, thereby completing the stacking assembly of the main board assembly. Then fix the interface board 500 on the back cover, connect the power supply line on the expansion circuit board 420 to the main board assembly and the interface board 500 to complete the stacking assembly of the interface boards; finally, stick the expansion flexible circuit board 422 to the expansion board bracket 421 through the double-sided tape 430, and then wrap the expansion circuit board 420 around the main board assembly and fix it on the back cover 130 of the camera housing, and plug in the FPC communication lines corresponding to the main board and the interface board respectively, thereby completing the stacking assembly of the expansion circuit boards; at this point, the assembly of the relevant components on the back cover of the camera housing is completed.

[0121] The assembly of the camera housing middle frame is to insert the camera housing middle frame 120 into the relevant components on the camera housing back cover.

[0122] The assembly sequence for the camera housing front end and related components is as follows: First, install the second housing seal 150. Then, secure the sensor circuit board 210 to the front cover. Install the filter gasket, filter, and filter pressure plate to complete the assembly of the camera housing front end and related components. Finally, insert the camera housing front end and related components into the camera housing midframe and mate with the mainboard assembly to complete the assembly of the entire industrial camera.

[0123] As a second aspect of the present application, a machine vision device is provided. For example, Figure 10 and Figure 11 as shown, the machine vision device includes an industrial camera and a lens module 700. The lens module 700 is disposed at the front end of the camera housing, and the light exit hole of the lens module is aligned with the photosensitive through hole. Among them, the industrial camera is the industrial camera described in the first aspect of the present application.

[0124] As described above, an extended circuit board is provided inside the industrial camera, making the overall structure of the industrial camera more compact.

[0125] In the embodiments of the present application, no special limitation is imposed on the specific structure of the lens module 700. For example, Figure 11 as shown, the lens hood module may include a lens hood, a lens assembly 720, and a light source assembly 730. In this embodiment, a lens module control port 132 is formed on the rear cover 130 of the camera housing, and a light source control terminal and a lens control terminal are provided in the lens module control port 132.

[0126] The industrial camera further includes an interface board 500. A light source energy control signal output terminal electrically connected to the light source control terminal and a lens control signal output terminal electrically connected to the lens control terminal are provided on the interface board 500.

[0127] It should be noted that the interface board 500 is also electrically connected to a main board integrated with a light source control function and a lens control function.

[0128] In the embodiments of the present application, the light source control terminal can be electrically connected to the light source assembly in the lens module through a wire, and the lens control terminal can be electrically connected to the lens assembly 720 in the lens module through a wire 600.

[0129] To improve the integration degree, the wire connected to the light source control terminal and the wire connected to the lens assembly 720 can be encapsulated in the same wire housing.

[0130] Specifically, the lens module includes a lens hood, a light source assembly 710, and a lens assembly 720. The light exit hole of the lens module is formed at the rear end of the lens hood. The light source assembly and the lens assembly can both be disposed in the lens hood, and the light source assembly is disposed around the light incident hole of the lens hood. The lens assembly is used to guide the light incident from the light incident hole of the lens hood to the light exit hole of the lens module;

[0131] A lens module control port is formed at the rear end of the camera housing, and a light source control terminal and a lens control terminal are provided in the lens module control port.

[0132] The main board assembly includes an interface board, and a light source energy control signal output terminal electrically connected to the light source control terminal and a lens control signal output terminal electrically connected to the lens control terminal are provided on the interface board;

[0133] The light source signal output terminal is electrically connected to the light source assembly, and the lens control signal output terminal is electrically connected to the lens assembly.

[0134] The above is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Those skilled in the art should understand that the present application includes but is not limited to the content described in the drawings and the above specific implementation manner. Any modification that does not deviate from the functional and structural principles of the present application will be included in the scope of the claims.

Claims

1. An industrial camera, comprising a camera housing (100), a sensor circuit board assembly (200) and a mainboard assembly (300), wherein a photosensitive through hole is formed on the camera housing (100), the sensor circuit board assembly (200) and the mainboard assembly (300) are both arranged in the camera housing (100), the photosensitive surface of the sensor circuit board assembly (200) faces the photosensitive through hole, and the mainboard assembly (300) is located on a side of the sensor circuit board assembly (200) away from the photosensitive through hole, characterized in that: The industrial camera further includes an extended circuit board (400), which is disposed around the main board assembly (300), and the wiring surface of the extended circuit board (400) faces the side wall of the camera housing (100). The extended circuit board (400) is electrically connected to both the main board assembly (300) and the sensor circuit board assembly (200), and the wiring surface is used for arranging electronic components.

2. The industrial camera according to claim 1, characterized in that, The extended circuit board (400) includes an extended heat-conducting bracket (410) and an extended flexible circuit board (420). The extended heat-conducting bracket (410) is disposed around the main board assembly (300) and is connected to the camera housing (100). The extended flexible circuit board (420) is attached to the surface of the extended heat-conducting bracket (410) facing the side wall of the camera housing (100). The surface of the extended flexible circuit board (420) facing the side wall of the camera housing (100) is the wiring surface, and the extended flexible circuit board (420) is electrically connected to the main board assembly (300).

3. The industrial camera according to claim 2, wherein The extended heat-conducting bracket (410) includes a first side plate (411), a second side plate (412), and a connecting side plate (413) connecting the first side plate (411) and the second side plate (412). The first side plate (411), the second side plate (412), and the connecting side plate (413) respectively face the corresponding side walls of the camera housing (100).

4. The industrial camera according to claim 3, wherein The extended heat-conducting bracket (410) further includes two mounting connectors, which are respectively disposed at the rear ends of the first side plate (411) and the second side plate (412), and the mounting connectors are detachably connected to the rear end portion of the camera housing (100).

5. The industrial camera according to claim 3, characterized in that, The extended heat-conducting bracket (410) further includes a first guiding plate (415) and a second guiding plate (416). The first guiding plate (415) is disposed at one end of the first side plate (411) facing the sensor circuit board assembly (200), and the second guiding plate (416) is disposed at one end of the second side plate (412) facing the sensor circuit board assembly (200). The sensor circuit board assembly (200) is located between the first guiding plate (415) and the second guiding plate (416). The sensor circuit board assembly (200) is electrically connected to the first guiding plate (415) through a first heat-conducting member, and the sensor circuit board assembly (200) is electrically connected to the second guiding plate (416) through a second heat-conducting member.

6. The industrial camera according to claim 5, characterized in that, In the direction from the main board assembly (300) to the sensor circuit board assembly (200), the distance between the first guiding plate and the second guiding plate gradually increases.

7. The industrial camera according to any one of claims 2 to 6, characterized in that, The extended flexible circuit board (420) comprises a flexible circuit board body (421) and a flexible connecting circuit board (422), wherein the flexible circuit board body is attached to the extended heat-conducting bracket (410), one end of the flexible connecting circuit board (422) is electrically connected to the flexible circuit board body (421), and the other end of the flexible connecting circuit board (422) is provided with a first electrical connector, and the first electrical connector is electrically connected to the second electrical connector on the interface board.

8. The industrial camera according to any one of claims 1 to 6, characterized in that, The motherboard assembly (300) comprises a motherboard connection structure (320), a multi-layer motherboard, and at least one motherboard heat sink (330); the connection structure fixedly connects the multi-layer motherboards, and a gap exists between two adjacent motherboards; at least one motherboard is provided with the motherboard heat sink (330); the motherboard heat sink (330) is connected to the expansion circuit board (400), and a heat conductor is provided between two adjacent motherboards.

9. The industrial camera according to claim 8, characterized in that, The mainboard heat sink (330) is provided on a mainboard adjacent to the sensor circuit board assembly (200).

10. The industrial camera according to claim 8, characterized in that, The mainboard connection structure (320) comprises a mainboard connection flexible circuit board (321) and a plurality of connection pillars (322). Any two adjacent mainboard layers are electrically connected via the corresponding mainboard connection flexible circuit boards (321). The connection pillars (322) sequentially penetrate the mainboard layers and securely connect the mainboards.

11. The industrial camera according to any one of claims 1 to 6, characterized in that, A heat insulating member is provided between the sensor circuit board assembly and the main board assembly (300).

12. The industrial camera according to claim 11, wherein The sensor circuit board assembly (200) comprises a sensor circuit board (210), a sensor (220), a sensor heating film (230), and a sensor heat sink (240); the sensor (220) is arranged on the sensor circuit board (210), and a photosensitive surface of the sensor is formed as a photosensitive surface of the sensor circuit board assembly (200); the sensor heating film (230) is arranged on a side of the sensor circuit board (210) facing away from the sensor; and the sensor heat sink (240) is arranged on a side of the sensor heating film (230) facing away from the sensor circuit board (210); The sensor circuit board (210) and the sensor heating film (230) are electrically connected to the mainboard assembly (300) via the extension circuit board (400).

13. The industrial camera according to any one of claims 1 to 6, characterized in that, The camera housing (100) comprises a camera housing front cover (110), a camera housing middle frame (120) and a camera housing back cover (130), wherein the camera housing middle frame (120) is connected between the camera housing front cover (110) and the camera housing back cover (130); The photosensitive through hole is formed on the camera housing front cover (110); The mainboard assembly (300) and the expansion circuit board (400) are fixedly connected to the camera housing rear cover (130).

14. The industrial camera according to claim 13, wherein, The front cover (110) of the camera housing includes a front cover body (111) and a lens mount (112). The photosensitive through hole is formed on the front cover body (111) and is connected to the camera housing middle frame (120). The lens mount (112) is disposed around the photosensitive through hole, and the lens mount (112) is located on a side of the front cover body (111) away from the camera housing middle frame (120).

15. The industrial camera according to claim 13, wherein The camera housing further includes a first housing sealing ring (140). The first housing sealing ring (140) is disposed between the camera housing middle frame (120) and the camera housing rear cover (130).

16. The industrial camera according to claim 15, wherein The first housing sealing ring includes a first base ring and a plurality of first positioning members. The plurality of first positioning members are disposed on the first base ring. First positioning holes are formed on the first positioning members. A plurality of first positioning posts are formed on one of the camera housing middle frame (120) and the camera housing rear cover (130). The plurality of first positioning posts correspond to the plurality of first positioning members one by one, and the first positioning posts are inserted into the first positioning holes on the corresponding first positioning members.

17. The industrial camera according to claim 13, characterized in that, The camera housing further includes a second housing sealing ring. The second housing sealing ring is disposed between the camera housing middle frame (120) and the camera housing front cover (110).

18. The industrial camera according to claim 17, characterized in that, The second housing sealing ring includes a second base ring and a plurality of second positioning members. The plurality of second positioning members are disposed on the second base ring. Second positioning holes are formed on the second positioning members. A plurality of second positioning posts are formed on one of the camera housing middle frame (120) and the camera housing front cover (110). The plurality of second positioning posts correspond to the plurality of second positioning members one by one, and the second positioning posts are inserted into the second positioning holes on the corresponding second positioning members.

19. The industrial camera according to claim 13, wherein, A lens module control port is formed on the camera housing rear cover (130). A light source control terminal and a lens control terminal are disposed in the lens module control port. The industrial camera further includes an interface board. A light source energy control signal output terminal electrically connected to the light source control terminal and a lens control signal output terminal electrically connected to the lens control terminal are disposed on the interface board.

20. A machine vision device, the machine vision device includes an industrial camera and a lens module, the lens module is arranged at the front end of the camera housing (100), and the light outlet hole of the lens module is aligned with the photosensitive through hole, characterized in that, The industrial camera is the industrial camera according to any one of claims 1 to 19.

21. The machine vision device according to claim 20, wherein, The lens module includes a lens hood, a light source assembly (710), and a lens assembly (720). The light exit hole of the lens module is formed at the rear end of the lens hood. The light source assembly (710) and the lens assembly (720) can both be disposed in the lens hood. The light source assembly (710) is disposed around the light entrance hole of the lens hood. The lens assembly is configured to guide the light incident from the light entrance hole of the lens hood to the light exit hole of the lens module. A lens module control port is formed at the rear end of the camera housing (100). A light source control terminal and a lens control terminal are disposed in the lens module control port. The industrial camera includes an interface board 500), and a light source energy control signal output terminal electrically connected to the light source control terminal and a lens control signal output terminal electrically connected to the lens control terminal are provided on the interface board; The light source signal output terminal is electrically connected to the light source assembly (710), and the lens control signal output terminal is electrically connected to the lens assembly (720).

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