Industrial camera
By designing a refrigeration component in an industrial camera with a cooling end in direct contact with the photosensitive sensor module and no return of the hot end, and combining the design of the heat dissipation component, the problem of low refrigeration efficiency in the prior art is solved, and more efficient photosensitive sensor cooling and better imaging effects are achieved.
Patent Information
- Application Number
- CN202421767426.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-24
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2034-07-24
AI Technical Summary
In existing industrial cameras, the cooling efficiency of thermoelectric refrigeration sheets (TECs) is low, which makes it difficult to effectively reduce the temperature of the photosensitive sensor and affects the imaging quality.
An industrial camera is designed, and the cold end of its refrigeration assembly is only in contact with the photosensitive sensor module, and heat reflux is avoided through sealed connections, and heat dissipation is directly dissipated by the heat dissipation assembly, thereby improving the refrigeration efficiency.
By improving the refrigeration efficiency of the refrigeration module, the temperature of the photosensitive sensor can be more effectively reduced, the imaging quality can be improved, and short circuit or pollution problems caused by condensation water can be avoided.
Smart Images
Figure CN222802941U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of detection equipment, in particular to an industrial camera. Background Art
[0002] With the continuous upgrading of industrial application scenarios, industrial cameras have higher and higher requirements for image quality. The temperature of the photosensor of industrial cameras is a very important factor affecting the image quality. Specifically, the higher the temperature of the photosensor, the more noise points in the generated image and the worse the image quality.
[0003] In the related art, many industrial cameras use thermoelectric coolers (TEC) to cool the photosensitive sensors, thereby reducing the temperature of the photosensitive sensors to room temperature or below room temperature to improve the imaging quality.
[0004] Therefore, how to improve the TEC cooling efficiency is a technical problem that needs to be solved in this field. Utility Model Content
[0005] The utility model aims to solve one of the technical problems in the related art to a certain extent. To this end, the utility model provides an industrial camera, in which a refrigeration component has a high refrigeration efficiency.
[0006] In order to achieve the above-mentioned purpose, an industrial camera is provided, which includes a shell, a photosensitive sensor module, a refrigeration component and a heat dissipation component, wherein the photosensitive sensor module, the refrigeration component and the heat dissipation component are all arranged in the shell, wherein the industrial camera also includes a sealed cavity component arranged in the shell, the sealed cavity component is connected to the shell, and a sealed cavity is formed in the sealed cavity component, the photosensitive sensor module is located in the sealed cavity, the cold end of the refrigeration component is inserted into the sealed cavity, the heat dissipation component and the hot end of the refrigeration component are located outside the sealed cavity, and the refrigeration component and the sealed cavity component are sealed and connected.
[0007] Optionally, the shell includes a front shell of the whole machine and a rear shell of the whole machine opposite to the front shell of the whole machine, the sealed cavity assembly includes a sealed cavity front shell, a sealed cavity middle frame and a sealed cavity rear shell that enclose the sealed cavity, the sealed cavity front shell is arranged in the front shell of the whole machine, the sealed cavity front shell and the sealed cavity rear shell are respectively arranged on both sides of the sealed cavity middle frame, the sealed cavity rear shell is arranged opposite to the rear shell of the whole machine, and a rear shell through hole is formed on the sealed cavity rear shell, the cold end of the refrigeration assembly is inserted into the sealed cavity through the rear shell through hole, and an insulating sealing ring is arranged between the cold end of the refrigeration assembly and the rear shell through hole, and the heat dissipation assembly is located between the sealed cavity rear shell and the rear shell of the whole machine.
[0008] Optionally, the photosensitive sensor module includes a driving circuit board and a photosensitive sensor, the driving circuit board is opposite to the front panel of the whole machine front shell, the photosensitive sensor is located on a side of the driving circuit board facing the front panel of the whole machine front shell, and is electrically connected to the driving circuit board;
[0009] The refrigeration component includes a refrigerator and a heat-conducting block. The cold end of the refrigeration component includes the cold end of the refrigerator and the heat-conducting block. The heat-conducting block is located in the sealed cavity. The cold end of the refrigerator passes through the through hole of the rear shell. One side surface of the heat-conducting block contacts the photosensitive sensor of the photosensitive sensor module, and the other side surface of the heat-conducting block is in contact with the cold end of the refrigerator.
[0010] Optionally, the heat conductive block includes a plate-like portion and a block-like portion, the first surface of the plate-like portion is in contact with the cold end of the refrigerator, and the block-like portion is formed on the second surface of the plate-like portion, the first surface and the second surface are opposite to each other, and the second surface faces a driving circuit board of the photosensitive sensor module, and an accommodating through hole is formed on the surface of the driving circuit board facing the second surface, the block-like portion is inserted into the accommodating through hole, and the second surface is in contact with the photosensitive sensor.
[0011] Optionally, the refrigeration assembly further includes a thermally conductive pad, and the thermally conductive pad is arranged between the block portion and the photosensor.
[0012] Optionally, the heat dissipation component is arranged at a hot end of the refrigeration component.
[0013] Optionally, a plurality of heat dissipation holes are formed on the portion of the shell corresponding to the heat dissipation assembly, and the heat dissipation module includes a heat dissipation module base and a heat dissipation element. The heat dissipation module base is arranged at the hot end of the refrigeration assembly, and the heat dissipation element is arranged on the side of the heat dissipation module base away from the hot end of the refrigeration assembly.
[0014] Optionally, the heat dissipation assembly further includes an air cooling component, and the air cooling component is arranged on the heat dissipation module base to perform air cooling on the heat dissipation component.
[0015] Optionally, the industrial camera further includes an interface circuit board and a main circuit board, and the interface circuit board and the main circuit board are both arranged outside the sealed cavity and on the heat dissipation module base.
[0016] In the industrial camera provided by the embodiment of the utility model, the cold end of the refrigeration component is only in contact with the photosensitive sensor module, and the hot end of the refrigeration component is not connected through other structural parts, so as to avoid the heat transferred to the hot end and then transferred back to the cold end, but directly dissipate the heat by the heat dissipation component, thereby improving the refrigeration effect of the refrigeration component. The refrigeration component is sealed and connected to the sealed cavity component, so as to avoid the generation of condensed water, and to avoid the condensed water from entering the sealed cavity, and to avoid the photosensitive sensor module from short-circuiting or being contaminated. In other words, the refrigeration component has a high refrigeration efficiency, can better cool the photosensitive sensor module, and the photosensitive sensor module will not be short-circuited or contaminated due to condensed water. Therefore, the photosensitive sensor module has a better imaging effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The utility model is further described below in conjunction with the accompanying drawings:
[0018] Figure 1 It is a schematic diagram of an exploded view of an optional implementation of an industrial camera provided by an embodiment of the utility model;
[0019] Figure 2 It is a cross-sectional schematic diagram of an industrial camera;
[0020] Figure 3 is a schematic diagram of an implementation of a heat conductive block.
[0021] Description of Reference Numerals
[0022] 110: whole front shell 120: whole back shell
[0023] 200: Photosensitive sensor module 210: Driving circuit board
[0024] 220: Photosensitive sensor 300: Refrigeration component
[0025] 310: Refrigerator 320; Heat conduction block
[0026] 321: Plate-shaped part 322: Block-shaped part
[0027] 330: first thermal pad 340: second thermal pad
[0028] 400: heat dissipation component 410: heat dissipation module base
[0029] 420: heat sink 421: heat pipe
[0030] 422: heat sink fin 500: sealed chamber assembly
[0031] 510: Sealed cavity middle frame 520: Sealed cavity front shell
[0032] 530: Sealed cavity rear shell 700: Interface circuit board
[0033] 800: Main circuit board 430: Air cooling DETAILED DESCRIPTION
[0034] The following is a detailed description of embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments in the implementation manner are intended to be used to explain the present invention and should not be construed as limiting the present invention.
[0035] References to "one embodiment" or "an example" or "an example" in this specification mean that a particular feature, structure, or characteristic described in conjunction with the embodiment itself may be included in at least one embodiment disclosed in the present utility model. The appearance of the phrase "in one embodiment" in various places in the specification does not necessarily refer to the same embodiment.
[0036] As a first aspect of the present invention, an industrial camera is provided. Figure 1 As shown, the industrial camera includes a housing, a photosensitive sensor module 200, a refrigeration assembly 300 and a heat dissipation assembly 400, and the photosensitive sensor module 200, the refrigeration assembly 300 and the heat dissipation assembly 400 are all arranged in the housing 100. The industrial camera also includes a sealed cavity assembly 500 arranged in the housing, the sealed cavity assembly 500 is connected to the housing 100, and a sealed cavity is formed in the sealed cavity assembly 500, the photosensitive sensor module 200 is located in the sealed cavity, the cold end of the refrigeration assembly 300 is inserted into the sealed cavity, the heat dissipation assembly 400 and the hot end of the refrigeration assembly 300 are located outside the sealed cavity, and the refrigeration assembly 300 and the sealed cavity assembly 500 are sealed and connected.
[0037] It should be noted that the refrigeration component can transfer the heat of the cold end to the hot end of the refrigeration component. Once there is a structural component between the hot end of the refrigeration component and the cold end of the refrigeration component, the heat transferred from the cold end to the hot end will be re-conducted to the cold end of the refrigeration component through the structural component. In the industrial camera provided in the embodiment of the utility model, the cold end of the refrigeration component 300 is only in contact with the photosensitive sensor module 200, and the hot end of the refrigeration component 300 is not connected by other structural components, so that the heat transferred to the hot end can be avoided from being transferred back to the cold end, but directly dissipated by the heat dissipation component 400, thereby improving the refrigeration effect of the refrigeration component 300.
[0038] As described above, the refrigeration assembly 300 and the sealed cavity assembly 500 are sealed to avoid the generation of condensed water, to prevent external moisture from entering the sealed cavity, and to prevent the photosensitive sensor module 200 from short-circuiting or being contaminated.
[0039] The refrigeration assembly 300 has a high refrigeration efficiency and can cool the photosensitive sensor module 200 better. The photosensitive sensor module 200 will not be short-circuited or contaminated by condensed water. Therefore, the photosensitive sensor module 200 has a better imaging effect.
[0040] In the embodiment of the present invention, the specific structure of the sealed cavity assembly 500 is not particularly limited, as long as a sealed cavity for accommodating the light-sensitive sensor module 200 can be defined inside the housing. Figure 1 As shown, the sealed cavity assembly 500 may include a sealed cavity middle frame 510, a sealed cavity front shell 520 and a sealed cavity rear shell 530, and the shell includes a whole machine front shell 110 and a whole machine rear shell 120 opposite to the whole machine front shell 110. The sealed cavity front shell 520, the sealed cavity middle frame 510 and the sealed cavity rear shell 530 surround the sealed cavity, the sealed cavity front shell 520 is arranged in the whole machine front shell 110, and the sealed cavity front shell 520 and the sealed cavity rear shell 530 are respectively arranged on both sides of the sealed cavity middle frame 510. The sealed cavity rear shell 530 is arranged opposite to the whole machine rear shell 120, and a rear shell through hole 531 is formed on the sealed cavity rear shell 530, and the cold end of the refrigeration assembly 300 is inserted into the sealed cavity through the through hole 531, and a heat insulation sealing ring 532 is arranged between the cold end of the refrigeration assembly and the rear shell through hole. The heat dissipation assembly 400 is located between the sealed cavity rear shell 530 and the entire machine rear shell 120 .
[0041] The sealed cavity assembly 510 is configured to include a sealed cavity middle frame 510, a sealed cavity front shell 520 and a sealed cavity rear shell 530, which is more convenient for assembling the industrial camera.
[0042] By providing the heat-insulating sealing ring 532, the sealing cavity can be sealed, and heat exchange between the cold end of the refrigeration component 300 and the sealed cavity rear shell 530 can be avoided, ensuring that the cold generated by the refrigeration component 300 is more efficiently transferred to the photosensitive sensor module. The heat-insulating sealing ring 532 can be formed by curing the sealing glue, which can be a sealing moisture-proof silicone.
[0043] In order to reduce cold leakage in the sealed cavity, optionally, the sealed cavity assembly 500 may be made of a metal material with low thermal conductivity (eg, stainless steel) and / or a plastic with good sealing effect.
[0044] In the embodiment of the utility model, the photosensitive sensor module 200 includes a driving circuit board 210 and a photosensitive sensor 220. The driving circuit board 210 is opposite to the front panel of the whole machine front shell 110. The photosensitive sensor 220 is located on the side of the driving circuit board 210 facing the front panel of the whole machine front shell 110 and is electrically connected to the driving circuit board 220. It is easy to understand that the front panel of the whole machine front shell 110 is formed with a lens mounting hole.
[0045] Accordingly, the refrigeration assembly 300 may include a refrigerator 310 and a heat conductive block 320, and the cold end of the refrigeration assembly 300 includes the cold end of the refrigerator 310 and the heat conductive block 320. The heat conductive block 320 is located in the sealed cavity, the cold end of the refrigerator 310 passes through the through hole on the sensor driving board, one side surface of the heat conductive block 320 contacts the photosensitive sensor 220 of the photosensitive sensor module 200, and the other side surface of the heat conductive block 320 is in contact with the cold end of the refrigerator 310.
[0046] In the embodiment of the utility model, the heat generated by the photosensitive sensor module 200 can be conducted to the cold end of the refrigerator 310 through the heat conductive block 320 .
[0047] The heat conducting block 320 may be made of a material with good thermal conductivity, for example, copper or a copper alloy.
[0048] In the present invention, there is no special limitation on the specific structure of the heat conducting block 320. For example, the shape of the heat conducting block 320 can be a plate-shaped piece or a columnar piece.
[0049] like Figure 3As shown, the heat conducting block 320 includes a plate-shaped portion 321 and a block-shaped portion 322, the first surface of the plate-shaped portion 321 is attached to the cold end of the refrigerator 310, and the block-shaped portion 322 is formed on the second surface of the plate-shaped portion 321. The first surface and the second surface are opposite, and the second surface faces the driving circuit board 210 of the photosensitive sensor module 200. The surface of the driving circuit board 210 facing the second surface is formed with a receiving through hole 211, and the block-shaped portion 322 is inserted into the receiving through hole 211, and the second surface is attached to the driving circuit board. After the block-shaped portion 322 passes through the receiving through hole 211, the distance between the block-shaped portion 321 and the photosensitive sensor 220 is shortened, which can improve the cooling efficiency of the photosensitive sensor 220, thereby improving the imaging performance of the photosensitive sensor 220. In addition, through the cooperation between the block-shaped portion 321 passing through the receiving through hole 211, the heat conducting block 320 can be made more stable, and the compactness of the structure of the industrial camera can be improved.
[0050] In the embodiment of the present utility model, there is no particular limitation on the specific type of the refrigerator 310, as long as it can provide cooling. Optionally, the refrigerator 310 may be a thermoelectric cooling sheet.
[0051] In order to further improve the cooling effect on the photosensitive sensor 220, optionally, the refrigeration component further includes a first thermal pad 330, which is arranged between the block portion 322 and the photosensitive sensor 220. By providing the first thermal pad 330, the gap between the block portion 322 and the photosensitive sensor 220 can be filled to reduce thermal resistance, so that the refrigerator 310 can better supply cold to the photosensitive sensor 220, and the block portion 322 can be prevented from causing bumps and damage to the photosensitive sensor 220. Optionally, the first thermal pad 330 can also be made of thermally conductive silicone grease or thermally conductive gel.
[0052] In the embodiment of the utility model, the heat-conducting block 320 can be fixed on the rear shell of the sealed cavity by fasteners, and a heat-insulating sealing pad can be arranged between the fasteners and the heat-conducting block 320 .
[0053] Optionally, the refrigeration assembly 300 may further include a second thermal pad 340, which is disposed between the heat conductive block 320 and the cold end of the refrigerator 310. By providing the second thermal pad 340, the gap between the heat conductive block 320 and the cold end of the refrigerator 310 can be filled to reduce thermal resistance, so that the refrigerator 310 can better transfer cold to the heat conductive block 320. Optionally, the second thermal pad 330 can be made of thermal conductive silicone grease or thermal conductive gel.
[0054] In the embodiment of the utility model, there is no special limitation on arranging the heat dissipation assembly 400 in the housing of the industrial camera, as long as it can dissipate heat for the refrigeration assembly 300. In order to improve the heat dissipation effect, the heat dissipation assembly 400 is optionally arranged at the hot end of the refrigeration assembly 300.
[0055] As an optional implementation, Figure 1 As shown, a plurality of heat dissipation through holes 100a are formed on the portion of the housing 100 corresponding to the heat dissipation assembly. The heat dissipation assembly 400 includes a heat dissipation module base 410 and a heat dissipation element 420. The heat dissipation module base 410 is arranged at the hot end of the refrigeration assembly 300, and the heat dissipation element 420 is arranged at the side of the heat dissipation module base 410 away from the hot end of the refrigeration assembly 300. Heat is conducted to the heat dissipation element 420 through the heat dissipation module base 410, and is dissipated to the outside of the housing 100 through the heat dissipation through holes 100a.
[0056] like Figure 2 As shown, in the embodiment of the present utility model, the heat sink 420 may include a heat pipe 421 and heat dissipation fins 422 arranged on the heat dissipation module base 410 .
[0057] In order to improve the heat dissipation efficiency, the heat dissipation assembly 400 may optionally further include an air cooling member 430 , which is disposed on the heat dissipation module base 410 to perform air cooling on the heat dissipation member 420 .
[0058] The industrial camera further includes an interface circuit board 700 and a main circuit board 800. The interface circuit board 700 and the main circuit board 800 are both arranged outside the sealed cavity and on the heat dissipation module base.
[0059] In the embodiment of the present invention, the industrial camera may further include a heat dissipation sheet metal, and the main circuit board 800 is connected to the heat sink 420 via the heat dissipation sheet metal, and heat conduction is achieved via the heat dissipation sheet metal.
[0060] The heat dissipation method of the industrial camera in the embodiment of the utility model is as follows:
[0061] The heat dissipation path of the interface circuit board is as follows: interface circuit board → rear case of the whole machine → air;
[0062] The heat dissipation path of the hot end of the refrigeration component is as follows: the hot end of the refrigerator → the second thermal pad → the heat dissipation component → the air cooling component forces convection air;
[0063] The cold end cold transfer path of the refrigeration component: the cold end of the refrigerator → the heat conduction block → the first heat conduction pad → the photosensitive sensor.
[0064] It is worth noting that the structural parts of the cold end cold transfer path of the refrigeration component do not overlap other parts, are fixed with screws, and the overlapping parts need to be insulated with plastic to reduce cold loss and improve refrigeration efficiency.
[0065] It is worth noting that there is no overlap between the hot end structural parts and the cold end structural parts of the refrigeration assembly, which reduces the mutual consumption of cold end cold and hot end heat and improves refrigeration efficiency.
[0066] It is worth noting that in addition to the combination of fins + copper base + heat pipes, the heat dissipation component can also adopt structures such as profile heat sinks; and for equipment with lower refrigerator power, natural heat dissipation without air cooling can be used.
[0067] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Those skilled in the art should understand that the present invention includes but is not limited to the contents described in the drawings and the above specific embodiments. Any modification that does not deviate from the functional and structural principles of the present invention shall be included in the scope of the claims.
Claims
1. An industrial camera, comprising a housing, a photosensitive sensor module (200), a refrigeration component (300) and a heat dissipation component (400), wherein the photosensitive sensor module (200), the refrigeration component (300) and the heat dissipation component (400) are all arranged in the housing, characterized in that: The industrial camera further comprises a sealed cavity assembly (500) arranged in the shell, the sealed cavity assembly (500) being connected to the shell, and a sealed cavity being formed in the sealed cavity assembly (500), the photosensitive sensor module (200) being located in the sealed cavity, the cold end of the refrigeration assembly (300) being inserted into the sealed cavity, the heat dissipation assembly (400) and the hot end of the refrigeration assembly (300) being located outside the sealed cavity, and the refrigeration assembly (300) and the sealed cavity assembly (500) being sealedly connected.
2. The industrial camera according to claim 1, characterized in that: The housing comprises a whole machine front housing (110) and a whole machine rear housing (120) opposite to the whole machine front housing (110); the sealed cavity assembly (500) comprises a sealed cavity front housing (520), a sealed cavity middle frame (510) and a sealed cavity rear housing (530) which surround the sealed cavity; the sealed cavity front housing (520) is arranged in the whole machine front housing (110); the sealed cavity front housing (520) and the sealed cavity rear housing (530) are respectively arranged in the sealed cavity. On both sides of the frame (510), the sealed cavity rear shell (530) is arranged opposite to the whole machine rear shell (120), and a rear shell through hole is formed on the sealed cavity rear shell (530), the cold end of the refrigeration component (300) is inserted into the sealed cavity through the rear shell through hole, and a heat insulation sealing ring is arranged between the cold end of the refrigeration component (300) and the rear shell through hole, and the heat dissipation component (400) is located between the sealed cavity rear shell (530) and the whole machine rear shell (120).
3. The industrial camera according to claim 2, characterized in that: The light-sensitive sensor module (200) comprises a driving circuit board (210) and a light-sensitive sensor (220), wherein the driving circuit board (210) is opposite to the front panel of the whole machine front shell (110), and the light-sensitive sensor (220) is located on a side of the driving circuit board (210) facing the front panel of the whole machine front shell (110), and is electrically connected to the driving circuit board (210); The refrigeration component (300) comprises a refrigerator (310) and a heat conductive block (320); the cold end portion of the refrigeration component (300) comprises the cold end of the refrigerator (310) and the heat conductive block (320); the heat conductive block (320) is located in the sealed cavity; the cold end of the refrigerator (310) passes through the rear shell through hole; one side surface of the heat conductive block (320) contacts the photosensitive sensor (220) of the photosensitive sensor module (200); and the other side surface of the heat conductive block (320) is in contact with the cold end of the refrigerator (310).
4. The industrial camera according to claim 3, characterized in that: The heat conductive block (320) comprises a plate-shaped portion (321) and a block-shaped portion (322), wherein the first surface of the plate-shaped portion (321) is bonded to the cold end of the refrigerator (310), and the block-shaped portion (322) is formed on the second surface of the plate-shaped portion (321), wherein the first surface and the second surface are opposite to each other, and the second surface faces the driving circuit board (210) of the photosensitive sensor module (200), and an accommodating through hole is formed on the surface of the driving circuit board (210) facing the second surface, and the block-shaped portion (322) is inserted into the accommodating through hole, and the second surface is bonded to the driving circuit board (210).
5. The industrial camera according to claim 4, characterized in that: The refrigeration assembly (300) further comprises a first thermally conductive pad (330), wherein the first thermally conductive pad (330) is arranged between the block portion and the photosensor (220).
6. The industrial camera according to claim 3, characterized in that: The refrigeration assembly (300) further comprises a second thermally conductive pad (340), wherein the second thermally conductive pad (340) is arranged between the thermally conductive block (320) and the cold end of the refrigerator (310).
7. The industrial camera according to any one of claims 1 to 6, characterized in that: The heat dissipation component (400) is arranged at the hot end of the refrigeration component (300).
8. The industrial camera according to claim 7, characterized in that: A portion of the shell corresponding to the heat dissipation component (400) is formed with a plurality of heat dissipation through holes, and the heat dissipation component (400) comprises a heat dissipation module base (410) and a heat dissipation element (420), wherein the heat dissipation module base (410) is arranged at a hot end portion of the refrigeration component (300), and the heat dissipation element (420) is arranged on a side of the heat dissipation module base (410) away from the hot end of the refrigeration component (300).
9. The industrial camera according to claim 8, characterized in that: The heat dissipation component (400) further comprises an air cooling component, which is arranged on the heat dissipation module base (410) to perform air cooling on the heat dissipation component (420).
10. The industrial camera according to claim 8, characterized in that: The industrial camera further comprises an interface circuit board and a main circuit board, wherein the interface circuit board and the main circuit board are both arranged outside the sealed cavity and on the heat dissipation module base (410).