Camera cooling structure and camera comprising same

WO2024210705A3PCT designated stage expired Publication Date: 2025-07-03VIEWORKS CO LTD
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Patent Information

Application Number
PCT/KR2024/095535
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2023-04-05
Filing Date
2024-03-14
Publication Date
2025-07-03

AI Technical Summary

Technical Problem

Conventional camera cooling methods using fans introduce vibration, which deteriorates image quality due to motor and fan rotation, necessitating an effective cooling solution without vibration.

Method used

A camera cooling structure employing a vortex tube to generate cooling gas, which is supplied to a chamber within the camera housing, allowing for heat dissipation without the use of fans and thus eliminating vibration.

Benefits of technology

The camera cooling structure effectively cools the camera interior using generated cooling gas, maintaining image quality by eliminating vibration-related issues and providing a compact cooling solution.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention relates to a camera cooling structure and a camera comprising same. The present invention provides a camera comprising: an image sensor unit; a housing at least partially accommodating the image sensor unit; a chamber cover which forms a chamber in the inner space of the housing by closing one side of the housing, and has formed therethrough a cooling gas inlet hole which supplies a cooling gas to the chamber and a cooling gas discharge hole which discharges the cooling gas to the outside of the chamber; and a cooling gas generator forming a vortex tube which receives the supply of a compressed gas and generates the cooling gas, and provided on one surface of the chamber cover.
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Description

Camera cooling structure and camera equipped therewith

[0001] The present invention relates to a camera cooling structure and a camera having the same.

[0002] In general, a camera is a device that photographs a subject. Cameras can be applied to various inspection equipment, imaging equipment, and communication devices. For example, industrial cameras are used to capture images in a variety of industries, including display inspection equipment, semiconductor inspection equipment, printed circuit board inspection equipment, and solar panel inspection equipment.

[0003] Cameras include components such as an image sensor for acquiring images, a control board for controlling the image sensor, and a housing that forms the exterior. As the performance of cameras becomes more advanced, effective cooling is required.

[0004] Conventional cooling methods typically use cooling fans. However, using cooling fans generates vibrations due to the rotation of the motor and fan. This vibration can degrade the camera's image quality.

[0005] The present invention aims to provide a cooling structure for a camera that enables effective cooling without vibration and a camera including the same.

[0006] The present invention provides a camera comprising: an image sensor unit; a housing that accommodates at least a portion of the image sensor unit; a chamber cover that closes one side of the housing to form a chamber in the internal space of the housing, and has a cooling gas inlet hole that supplies cooling gas to the chamber and a cooling gas outlet hole that discharges the cooling gas to the outside of the chamber formed therethrough; and a cooling gas generating unit that forms a vortex tube that receives compressed gas and generates the cooling gas, and is provided on one surface of the chamber cover.

[0007] In one embodiment, one surface of the image sensor unit is provided with a heat dissipation unit having at least one heat dissipation fin that dissipates heat to the chamber.

[0008] Additionally, a thermoelectric module may be provided between the image sensor unit and the heat dissipation unit.

[0009] In one embodiment, the cooling gas generating unit includes a compressed gas supply unit that receives the compressed gas, a cooling gas supply channel that transfers cooling gas generated in the vortex tube to the cooling gas inlet, a high-temperature gas discharge channel that transfers high-temperature gas generated in the vortex tube, a cooling gas discharge channel that communicates with the cooling gas discharge hole and receives the cooling gas from the chamber and transfers it to the high-temperature gas discharge channel, and a high-temperature gas discharge unit that communicates with the high-temperature gas discharge channel and discharges the high-temperature gas and the cooling gas transferred from the cooling gas discharge channel to the outside.

[0010] Additionally, the cooling gas generating unit may be configured with at least one block and may be coupled to the chamber cover.

[0011] In addition, the cooling gas generating unit includes a first block equipped with the cooling gas supply path, a second block equipped with the compressed gas supply part and the vortex tube, and a third block equipped with the high-temperature gas discharge path, the cooling gas discharge path, and the high-temperature gas discharge part, and the first block, the second block, and the third block may be sequentially connected and provided on one surface of the chamber cover.

[0012] In addition, the second block may comprise a vortex tube including a vortex room connected to the compressed gas supply unit, a vortex flow path connected to the vortex room, a vortex generating unit provided in the vortex room to generate a vortex, and a flow rate controlling unit provided at one end of the vortex flow path.

[0013] Additionally, the flow control unit may be provided on a contact surface between the second block and the third block.

[0014] In one embodiment, one surface of the chamber cover is provided with a rear block electrically connected to the image sensor unit, and the rear block and the first block, the second block, and the third block can be arranged together on one surface of the chamber cover.

[0015] In one embodiment, the first block, the second block, and the third block may be arranged in an L shape, and the rear block may be arranged along the inner side of the L shape.

[0016] In one embodiment, a first cable passage portion may be formed on one side wall of the housing through which a cable connecting the image sensor unit to the rear block passes, and a second cable passage portion corresponding to the first cable passage portion may be formed on the chamber cover.

[0017] In addition, the present invention provides a cooling structure for a camera, comprising: a housing to which at least a portion of an image sensor unit of the camera is coupled; a chamber formed by a chamber cover that closes one side of the housing, and in which heat of the image sensor unit is dissipated; and a cooling gas generating unit that is coupled in a block shape to one surface of the chamber cover and includes a vortex tube that receives compressed gas and generates cooling gas; wherein a cooling gas inlet hole for supplying the cooling gas to the chamber and a cooling gas exhaust hole for discharging the cooling gas to the outside of the chamber are formed in the chamber cover; and the cooling gas generating unit includes a compressed gas supply hole through which the compressed gas is supplied, and a high-temperature gas exhaust hole for discharging high-temperature gas generated in the vortex tube and cooling gas discharged through the cooling gas exhaust hole to the outside.

[0018] In one embodiment, the chamber cover may be coupled to the housing from the rear side of the image sensor unit.

[0019] Additionally, the cooling gas generating unit may be configured by combining a plurality of blocks and may be positioned within the rear area of ​​the chamber cover.

[0020] In addition, the cooling gas generating unit may further include a cooling gas supply path for delivering cooling gas generated in the vortex tube to the cooling gas inlet, a high-temperature gas discharge path for delivering the high-temperature gas generated in the vortex tube, and a cooling gas discharge path for receiving the cooling gas from the chamber and delivering it to the high-temperature gas discharge path by communicating with the cooling gas discharge hole.

[0021] In one embodiment, the cooling gas generating unit includes a first block having the cooling gas supply passage, a second block having the compressed gas supply passage and the vortex tube, and a third block having the high-temperature gas discharge passage, the cooling gas discharge passage, and the high-temperature gas discharge section, and the first block, the second block, and the third block may be sequentially connected and provided on one surface of the chamber cover.

[0022] In addition, the second block may comprise a vortex tube including a vortex room connected to the compressed gas supply unit, a vortex flow path connected to the vortex room, a vortex generating unit provided in the vortex room to generate a vortex, and a flow rate controlling unit provided at one end of the vortex flow path.

[0023] According to the present invention, a vortex tube is used to generate cooling gas to cool the inside of the camera, thereby enabling effective cooling of the camera without vibration.

[0024] In addition, the camera cooling structure according to the present invention can be configured in a block shape to provide a compact structure.

[0025] FIG. 1 is a perspective view of a camera including a camera cooling structure according to one embodiment of the present invention.

[0026] FIG. 2 is an exploded perspective view of a camera including a camera cooling structure according to one embodiment of the present invention.

[0027] FIG. 3 is a partially exploded perspective view of a camera including a camera cooling structure according to one embodiment of the present invention.

[0028] FIG. 4 is a drawing illustrating the internal configuration of a camera including a camera cooling structure according to one embodiment of the present invention.

[0029] FIG. 5 is a plan view of a chamber cover and a cooling gas generator in a camera including a camera cooling structure according to one embodiment of the present invention.

[0030] Figure 6 is a cross-sectional view taken along the BB' direction of Figure 5.

[0031] Fig. 7 is a cross-sectional view in the CC' direction of Fig. 5.

[0032] Fig. 8 is a cross-sectional view taken along the DD' direction of Fig. 5.

[0033] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings. First, when assigning reference numerals to components in each drawing, it should be noted that identical components are assigned the same numerals as much as possible even if they are shown in different drawings. Furthermore, in describing the present invention, if a detailed description of a related known structure or function is judged to obscure the gist of the present invention, the detailed description thereof will be omitted. In addition, although preferred embodiments of the present invention will be described below, it should be understood that the technical idea of ​​the present invention is not limited thereto and can be modified and implemented in various ways by those skilled in the art.

[0034] FIG. 1 is a perspective view of a camera including a camera cooling structure according to one embodiment of the present invention, FIG. 2 is an exploded perspective view of a camera including a camera cooling structure according to one embodiment of the present invention, and FIG. 3 is a partially exploded perspective view of a camera including a camera cooling structure according to one embodiment of the present invention. In addition, FIG. 4 is a drawing illustrating an internal configuration of a camera including a camera cooling structure according to one embodiment of the present invention (FIG. 4 partially includes a cross-section taken along the line AA' in FIG. 3).

[0035] A camera (1) including a camera cooling structure according to one embodiment of the present invention is characterized in that it has a cooling gas generating unit using a vortex tube, and supplies cooling gas generated from the cooling gas generating unit to the internal space of the camera to cool the interior of the camera. In addition, in the camera cooling structure according to the present invention, the cooling gas generating unit is configured in a block shape so that it can be compactly installed in the camera (1).

[0036] Referring to FIGS. 1 to 4, a camera (1) according to one embodiment of the present invention may include a front cover (10), an image sensor unit (20), a housing (30), a chamber cover (40), a cooling gas generation unit (50, 60, 70), and a rear block (90). For convenience of explanation, the direction in which the image sensor unit (20) acquires an image (the lower direction in FIG. 1) is referred to as the “front,” and the direction opposite to the front is referred to as the “rear.” However, it should be noted that the expressions “front” and / or “rear” should not be construed as limiting the present invention.

[0037] The housing (30) forms an internal receiving space, and the receiving space, together with the chamber cover (40), constitutes a chamber (32). In one embodiment, the housing (30) may have a hollow column shape, for example, a square column shape. However, in the practice of the present invention, the shape of the housing (30) may not be a square column, but may be a circular column or another polygonal column shape.

[0038] A front cover (10) is coupled to the front of the housing (30), and a chamber cover (40) is coupled to the rear of the housing (30). The internal space of the housing (30) can be understood to form a chamber (32) with one side closed by the chamber cover (40). In one embodiment, the front cover (10) and the chamber cover (40) to the housing (30) can be coupled using screws, but coupling using an adhesive or the like is also possible.

[0039] An opening (12) for image acquisition is formed in the front cover (10). A tube (not shown) can be attached to the front end of the front cover (10).

[0040] The image sensor unit (20) can be coupled or accommodated in the housing (30) and / or the front cover (10). Referring to FIG. 2, the image sensor unit (20) can be coupled to one side of the housing (30) via the image sensor unit mounting block (14).

[0041] Referring to FIG. 4, the image sensor unit (20) may be configured as a printed circuit board (PCB) on which an image sensor (22) is mounted. In addition, the image sensor unit (20) may include electronic components (not shown) mounted on the printed circuit board to drive the image sensor (22).

[0042] Referring to FIGS. 2 to 4, a heat dissipation member (28) may be provided on one side of the image sensor unit (20), and a heat transfer member (24) for transferring heat between the image sensor unit (20) and the heat dissipation member (28) may be provided. In order to improve cooling performance, a thermoelectric module (26) such as a Peltier element may be provided between the heat transfer member (24) and the heat dissipation member (28). The thermoelectric module (26) may be cooled on a surface (cooling surface) facing the image sensor unit (20) by electricity supply, absorb heat generated from the image sensor unit (20), and then release the heat to the heat dissipation member (28) through the opposite surface (heat generation surface). The heat dissipation member (28) may be provided with a plurality of heat dissipation fins (29). By this configuration, heat generated in the image sensor unit (20) is dissipated into the internal space of the chamber (32) through the heat dissipation unit (28). Cooling gas generated from the cooling gas generation unit is supplied to the chamber (32), and the gas that has absorbed the heat is discharged outside the chamber (32).

[0043] Meanwhile, a first cable passage (34) may be formed on one side wall of the housing (30). A cable (not shown) connected to the image sensor unit (20) may be accommodated in the first cable passage (34), and thus, the sealing of the chamber (32) may not be hindered.

[0044] The chamber cover (40) is coupled to the rear side of the housing (30). The chamber cover (40) may be configured in a plate shape of a predetermined thickness. In one embodiment, a cover coupling hole (31) is formed at the rear side end of the housing (30), and a cover screw hole (41) is formed at the edge portion of the chamber cover (40), so that a screw can be coupled to the cover coupling hole (31) of the housing (30) through the cover screw hole (41), thereby coupling the chamber cover (40) to the housing (30).

[0045] The chamber cover (40) is formed with a cooling gas inlet hole (42) and a cooling gas outlet hole (44) that penetrate upward and downward. Referring to FIG. 4, it can be confirmed that the cooling gas inlet hole (42) and the cooling gas outlet hole (44) are in communication with the chamber (32). Since the cooling gas is introduced through the cooling gas inlet hole (42) and then absorbs the heat within the chamber (32) and is then discharged through the cooling gas outlet hole (44), it may be desirable for the cooling gas inlet hole (42) and the cooling gas outlet hole (44) to be positioned as far apart as possible. In one embodiment, as shown in FIGS. 2 to 4, the cooling gas inlet hole (42) and the cooling gas outlet hole (44) may be positioned in a diagonal direction of the chamber cover (40). In some cases, the cooling gas inlet hole (42) and the cooling gas outlet hole (44) may be positioned at opposite positions along the edge of the chamber cover (40). The installation locations of the cooling gas inlet (42) and the cooling gas outlet (44) can be appropriately selected by considering the shape of the housing (30) and the chamber cover (40), the internal structure of the chamber (32), etc.

[0046] Meanwhile, a second cable passage (46) may be formed on one side of the chamber cover (40) corresponding to the first cable passage (34) of the housing (30). Cables installed through the first and second cable passages (34, 46) may be connected to the rear block (90).

[0047] On the rear side of the chamber cover (40), a plurality of blocks (50, 60, 70) constituting a cooling gas generation unit and a rear block (90) for communication with the outside of the camera or power connection are coupled. In one embodiment, the chamber cover (40) may be formed with a first block coupling hole (43), a second block coupling hole (45), a third block coupling hole (47), and a fourth block coupling hole (49). The first to fourth block coupling holes (43, 45, 47, 49) are configured to be coupled with screws to secure the blocks (50, 60, 70) of the cooling gas generation unit and the rear block (90).

[0048] First, the rear block (90) can be described. The rear block (90) can be provided with a power terminal (92) and a video terminal (94), and a power terminal installation part (92A) and a video terminal installation part (94A) for installing the power terminal (92) and the video terminal (94) can be formed on the rear block (90). However, in the practice of the present invention, the power terminal (92) and the video terminal (94) may not be provided separately, but may be provided by being integrated into a single connector, and a terminal for communication or power connection of a different form or method than that shown in FIGS. 1 to 3 may also be provided. The rear block (90) has a screw hole (91) formed therein, and by screwing a screw into the fourth block joining hole (49) through the screw hole (91), the rear block (90) can be coupled to the chamber cover (40).

[0049] The cooling gas generating unit receives compressed gas to generate cooling gas, and supplies the generated cooling gas into the chamber (32) of the housing (30), while absorbing heat from the remaining gas and the chamber (32) after generating the cooling gas and discharging the heated gas to the outside. The cooling gas generating unit includes a vortex tube. In one embodiment, the cooling gas generating unit includes at least one block, and the block constituting the cooling gas generating unit is provided on the rear side of the chamber cover (40). In one embodiment, the rear block (90) and the block constituting the cooling gas generating unit are coupled to the rear side of the chamber cover (40), but may not substantially exceed the range of the rear side of the chamber cover (40). In other words, the rear block (90) and the block constituting the cooling gas generating unit may be included within the rear area of ​​the chamber cover (40).

[0050] In one embodiment, the cooling gas generating unit includes a first block (50), a second block (60), and a third block (70). However, it should be noted that in the practice of the present invention, the cooling gas generating unit is not necessarily composed of three blocks. In some cases, the first block (50), the second block (60), and the third block (70) may be integrated into one block, two blocks among the first block (50), the second block (60), and the third block (70) may be integrated into each other, or the three blocks of the first block (50), the second block (60), and the third block (70) may be divided into four or more blocks.

[0051] In one embodiment, a vortex tube may be provided in the second block (60), a flow path may be formed in the first block (50) to supply cooling gas generated in the vortex tube into the chamber (32), and a flow path may be formed in the third block (70) to discharge hot gas generated in the vortex tube and gas heated in the chamber (32).

[0052] Referring to FIGS. 1 to 3, a first block (50) is provided on one side of a second block (60), a third block (70) is provided on the other side of the second block (60), and the first to third blocks (50, 60, 70) are arranged to form an approximately L-shape. In addition, the first to third blocks (50, 60, 70) are arranged to surround two sides of a rear block (90). This arrangement configuration is to effectively arrange the rear block (90) and the first to third blocks (50, 60, 70) on the rear side of the chamber cover (40). In addition, the first block (50) and the third block (70) may be arranged in consideration of the positions of the cooling gas inlet (42) and the cooling gas outlet (44) formed in the chamber cover (40).

[0053] A screw hole (51) is formed in the first block (50), and the first block (50) can be coupled to the chamber cover (40) by connecting a screw through the screw hole (51) to the first block connecting hole (43) of the chamber cover (40). A screw hole (61) is formed in the second block (60), and the second block (60) can be coupled to the chamber cover (40) by connecting a screw through the screw hole (61) to the second block connecting hole (45) of the chamber cover (40). A screw hole (71) is formed in the third block (70), and the third block (70) can be coupled to the chamber cover (40) by connecting a screw through the screw hole (71) to the third block connecting hole (47) of the chamber cover (40). Additionally, a screw hole (53) for connecting the first block (50) to the second block (60) may be further provided transversely on the first block (50). A screw hole (73) for connecting the third block (70) to the second block (60) may be further provided transversely on the third block (70).

[0054] The second block (60) is provided with a compressed gas supply unit (62) through which compressed gas is supplied. In addition, the second block (60) is provided with a vortex generating unit (80), a vortex passage unit (82), and a flow rate controlling unit (84). The vortex generating unit (80) and the vortex passage unit (82) can be coupled to a vortex room (64) formed in the second block (60) as described below. The flow rate controlling unit (84) can be provided in a flow rate controlling unit insertion groove (69) formed at one end of the second block (60).

[0055] The vortex generating unit (80), the vortex passage unit (82), and the flow rate controlling unit (84) can form a vortex tube together with the flow path formed in the second block (60). The vortex tube is a mechanical element that receives compressed gas, separates cold gas and hot gas, and discharges them. When compressed gas is supplied, the compressed gas rotates at a high speed in the vortex generating unit (80), and the rotated gas heads toward the flow rate controlling unit (84), and some of the rotated gas is returned from the flow rate controlling unit (84) and moves toward the vortex generating unit (80), losing heat and becoming cooled gas. Meanwhile, the remaining gas that is not returned from the flow rate controlling unit (84) becomes hot gas and is discharged through the flow rate controlling unit (84).

[0056] The third block (70) may be provided with a high-temperature gas discharge portion (72) for discharging hot gas. Meanwhile, a flow path closing portion (86) for closing one side of a flow path formed inside the third block (70) may be provided in the third block (70).

[0057] The configuration of the vortex tube and the supply of cooling gas and the discharge of high-temperature gas by the first to third blocks (50, 60, 70) is described in more detail below.

[0058] Fig. 5 is a plan view of a chamber cover and a cooling gas generator in a camera including a camera cooling structure according to one embodiment of the present invention. Fig. 6 is a cross-sectional view taken along line BB' of Fig. 5, Fig. 7 is a cross-sectional view taken along line CC' of Fig. 5, and Fig. 8 is a cross-sectional view taken along line DD' of Fig. 5.

[0059] Referring to Fig. 5, the first to third blocks (50, 60, 70) are combined on the rear side of the chamber cover (40).

[0060] The configuration of the first to third blocks (50, 60, 70) and the vortex tube will be described with reference to FIGS. 6 to 8.

[0061] A first block (50) is formed with cooling gas supply passages (52, 54). The first cooling gas supply passage (52) is connected to a vortex generator (80) of the second block (60). The second cooling gas supply passage (54) extends from the first cooling gas supply passage (52) and is connected to a cooling gas inlet hole (42) formed in the chamber cover (40). Cooling gas generated in the vortex tube is delivered through the first cooling gas supply passage (52) and introduced into the cooling gas inlet hole (42) through the second cooling gas supply passage (54). The cooling gas is delivered to the chamber (32) through the cooling gas inlet hole (42) to cool the inside of the chamber (32). In one embodiment, the first block (50) or the second block (60) may be formed of an insulating material to prevent condensation from occurring due to the supply of cooling gas.

[0062] In the second block (50), a vortex room (64) connected to a compressed gas supply unit (62) and a vortex flow path (66) connected to the vortex room (64) are formed. At the end of the vortex flow path (66), a flow control unit (84) that functions as a type of valve is provided. A portion of the vortex flow path (66) may form a diaphragm portion (68) that narrows the flow path width.

[0063] A vortex room (64) can accommodate a vortex generator (80) and a vortex passage (82). Compressed gas supplied through the compressed gas supply unit (62) is generated as a first vortex by the vortex generator (80) in the vortex room (64) and delivered to the vortex passage (66) through the vortex passage (82). A portion of the first vortex forms a second vortex while being returned by the flow control unit (84), and the gas forming the second vortex is cooled while losing heat to the gas of the first vortex. The cooled gas is delivered to the cooling gas passage (52, 54) of the first block (50). Meanwhile, the gas that is not returned by the flow control unit (84) passes through the flow control unit (84) in a heated state and is delivered to the high-temperature gas discharge passage (76) of the third block (70). In one embodiment, the flow control unit (84) may be configured as a plate shape with a slit formed for gas discharge, and may be provided on the joint surface of the second block (60) and the third block (70). Meanwhile, the vortex passage unit (82) may not be provided separately, and the vortex path (66) may take its place in its function. This is because the flow of the first vortex and the second vortex can be guided by the vortex path (66).

[0064] The third block (70) is provided with a high-temperature gas discharge path (76) and a high-temperature gas discharge unit (72) for discharging the gas to the outside as described above. The high-temperature gas remaining after generating the cooling gas is transferred to the high-temperature gas discharge path (76) through the flow control unit (84) and then discharged through the high-temperature gas discharge unit (72). Meanwhile, the third block (70) is formed with a cooling gas discharge path (74) that communicates with a cooling gas discharge hole (44) formed in the chamber cover (40) and is connected to the high-temperature gas discharge path (76). Meanwhile, the third block (70) can be heated as the high-temperature gas passes therethrough. To prevent the heat of the third block (70) from being transferred to the chamber cover (40), the third block (70) can be made of an insulating material. Alternatively, as illustrated in FIG. 8, an insulating material (78) may be provided on the surface where the third block (70) and the chamber cover (40) come into contact.

[0065] The cooling gas supplied to the chamber (32) through the cooling gas inlet (42) of the chamber cover (40) cools the chamber (32) and is then transferred to the cooling gas discharge path (74) through the cooling gas discharge hole (44) and discharged to the high-temperature gas discharge section (72) through the high-temperature gas discharge path (76).

[0066] Although a technique is known to separate compressed gas into cold and hot gas using a vortex tube, the present invention is different in that it effectively places and combines a vortex tube with a camera to cool the camera.

[0067] In addition, according to the present invention, there is an advantage in that the cooling mechanism can be compactly installed in the camera without causing vibrations that occur when cooling the camera using a fan.

[0068] The above description is merely an illustrative description of the technical idea of ​​the present invention, and those skilled in the art will appreciate that various modifications, changes, and substitutions may be made without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention and the accompanying drawings are not intended to limit the technical idea of ​​the present invention, but rather to explain it, and the scope of the technical idea of ​​the present invention is not limited by these embodiments and the accompanying drawings. The scope of protection of the present invention should be interpreted by the following claims, and all technical ideas within a scope equivalent thereto should be interpreted as being included in the scope of the rights of the present invention.

[0069] <Explanation of symbols>

[0070] 1: Camera 10: Front cover

[0071] 20: Image sensor unit 26: Thermoelectric module

[0072] 28: Heat dissipation part 30: Housing

[0073] 32: Chamber 40: Chamber cover

[0074] 42: Cooling gas inlet hole 44: Cooling gas outlet hole

[0075] 50: Block 1 52, 54: Cooling gas supply path

[0076] 60: Second block 62: Compressed gas supply unit

[0077] 64: Vortex Room 66: Vortex Euro

[0078] 70: Block 3 72: High temperature gas discharge section

[0079] 74: Cooling gas discharge path 76: High temperature gas discharge path

[0080] 80: Vortex generating section 82: Vortex passage section

[0081] 84: Flow control unit 90: Rear block

Claims

1. Image sensor section; A housing accommodating at least a portion of the image sensor unit; A chamber cover formed by closing one side of the housing to form a chamber in the internal space of the housing, and having a cooling gas inlet hole for supplying cooling gas to the chamber and a cooling gas outlet hole for discharging the cooling gas to the outside of the chamber formed therethrough; and A vortex tube configured to receive compressed gas and generate the cooling gas, and a cooling gas generating unit provided on one surface of the chamber cover; Camera including.

2. In paragraph 1, A camera characterized in that one surface of the image sensor unit is provided with a heat dissipation unit having at least one heat dissipation fin that dissipates heat to the chamber.

3. In paragraph 2, A camera characterized in that a thermoelectric module is provided between the image sensor unit and the heat dissipation unit.

4. In any one of paragraphs 1 to 3, The above cooling gas generating unit, A compressed gas supply unit that receives the compressed gas, A cooling gas supply path that transfers the cooling gas generated in the above vortex tube to the cooling gas inlet hole, A high-temperature gas discharge path through which high-temperature gas generated in the above vortex tube is transferred, A cooling gas discharge path that is connected to the cooling gas discharge hole and receives the cooling gas from the chamber and delivers it to the high-temperature gas discharge path, and A high temperature gas discharge unit that is connected to the high temperature gas discharge path and discharges the high temperature gas and the cooling gas transmitted from the cooling gas discharge path to the outside. A camera characterized by including:

5. In paragraph 4, A camera characterized in that the cooling gas generating unit is composed of at least one block and is coupled to the chamber cover.

6. In paragraph 5, The above cooling gas generating unit, A first block equipped with the above cooling gas supply path, A second block having the compressed gas supply unit and the vortex tube, and A third block is provided with the high temperature gas discharge path, the cooling gas discharge path, and the high temperature gas discharge unit, A camera characterized in that the first block, the second block, and the third block are sequentially connected and provided on one surface of the chamber cover.

7. In paragraph 6, A camera characterized in that the second block comprises a vortex tube including a vortex room connected to the compressed gas supply unit, a vortex flow path connected to the vortex room, a vortex generating unit provided in the vortex room to generate a vortex, and a flow rate controlling unit provided at one end of the vortex flow path.

8. In paragraph 6, A camera characterized in that a rear block electrically connected to the image sensor unit is provided on one side of the chamber cover, and the rear block, the first block, the second block, and the third block are arranged together on one side of the chamber cover.

9. In paragraph 8, A camera characterized in that the first block, the second block, and the third block are arranged in an L shape, and the rear block is arranged along the inner side of the L shape.

10. In paragraph 8, A camera characterized in that a first cable passage portion is formed on one side wall of the housing through which a cable connecting the image sensor unit to the rear block passes, and a second cable passage portion corresponding to the first cable passage portion is formed on the chamber cover.

11. Regarding the cooling structure of the camera, A chamber formed by a housing to which at least a portion of the image sensor portion of the camera is coupled, and a chamber cover that closes one side of the housing, and through which heat from the image sensor portion is dissipated; and A cooling gas generating unit including a vortex tube that is connected in a block shape to one side of the chamber cover and receives compressed gas to generate cooling gas; Including, The chamber cover is formed with a cooling gas inlet for supplying the cooling gas to the chamber and a cooling gas outlet for discharging the cooling gas to the outside of the chamber. A cooling structure of a camera, characterized in that the cooling gas generating unit includes a compressed gas supply unit to which the compressed gas is supplied, and a high-temperature gas discharge unit that discharges high-temperature gas generated in the vortex tube and cooling gas discharged through the cooling gas discharge hole to the outside.

12. In paragraph 11, A cooling structure of a camera, characterized in that the cooling gas generating unit is formed by combining a plurality of blocks and is positioned within the rear area of ​​the chamber cover.

13. In paragraph 11 or 12, The above cooling gas generating unit, A cooling gas supply path that transfers the cooling gas generated in the above vortex tube to the cooling gas inlet hole, A high-temperature gas discharge path through which the high-temperature gas generated in the above vortex tube is transferred, and A cooling gas discharge path that is connected to the above cooling gas discharge hole and receives the cooling gas from the chamber and delivers it to the high-temperature gas discharge path A cooling structure of a camera characterized by further including:

14. In paragraph 13, The above cooling gas generating unit, A first block equipped with the above cooling gas supply path, A second block having the compressed gas supply unit and the vortex tube, and A third block is provided with the high temperature gas discharge path, the cooling gas discharge path, and the high temperature gas discharge unit, A cooling structure of a camera, characterized in that the first block, the second block, and the third block are sequentially connected and provided on one surface of the chamber cover.

15. In paragraph 14, A cooling structure of a camera characterized in that the second block comprises a vortex tube including a vortex room connected to the compressed gas supply unit, a vortex flow path connected to the vortex room, a vortex generating unit provided in the vortex room to generate a vortex, and a flow rate controlling unit provided at one end of the vortex flow path.

Citation Information

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