Heat dissipation device and testing equipment

Abstract

The present application discloses a heat dissipation device and a detection device, which belong to the field of workpiece detection technology. The disclosed detection device includes a heat dissipation device, which can be used in a detection channel of the detection device, the detection channel is used to accommodate the workpiece and can be connected to the outside world, and the heat dissipation device includes: a jet component, the jet component is provided with a jet port, and the jet port is used to spray gas to form a wind curtain located outside the workpiece in the detection channel. The heat dissipation device provided in the present application can reduce the probability of damage to the parts of the detection device, and compared with the solution in the related art that uses air conditioning to reduce the probability of damage to the parts of the detection device, the heat dissipation device provided in the present application is less expensive.

Description

Technical Field

[0001] The present application belongs to the technical field of workpiece detection, and specifically relates to a heat dissipation device and detection equipment. Background Art

[0002] With the rapid development of industrial production, the requirements for workpiece quality are becoming increasingly stringent. In the industrial field, testing equipment can detect a variety of defects such as looseness, slag inclusions, cracks, etc. of workpieces, which is of great significance to ensuring product quality and improving production efficiency.

[0003] However, with the continuous improvement of the workpiece production process, the workpiece is sometimes sent to the detection channel of the detection equipment at a higher temperature for defect detection. Under the influence of this temperature, the temperature of the detection equipment will rise accordingly, making the parts of the detection equipment, especially the temperature-sensitive parts, prone to damage. In order to reduce the probability of damage to these parts, the traditional practice is to use air conditioning to reduce the temperature of the detection equipment. However, the cost of air conditioning is high, which leads to the high cost of detection equipment, which in turn limits the promotion and use of detection equipment. Summary of the invention

[0004] The purpose of the embodiments of the present application is to provide a heat dissipation device and a detection device, which are helpful in solving the problem of high cost of detection equipment in related technologies.

[0005] In a first aspect, an embodiment of the present application provides a heat dissipation device that can be used in a detection channel of the detection equipment, wherein the detection channel is used to accommodate a workpiece and can be connected to the outside world, and the heat dissipation device includes: a jet component, wherein the jet component is provided with a jet port, and the jet port is used to spray gas to form a wind curtain located outside the workpiece in the detection channel.

[0006] In the second aspect, an embodiment of the present application provides a detection device, which includes a device body and the heat dissipation device described above, the device body is provided with a detection channel for accommodating a workpiece, the detection channel can be connected to the outside world, and the heat dissipation device is arranged in the detection channel.

[0007] In an embodiment of the present application, a heat dissipation device is used to be arranged in a detection channel of a detection device, and the detection device can specifically be an industrial flaw detection device, and the air jet of the heat dissipation device is used to spray gas to form a wind curtain located outside the workpiece in the detection channel. With such a configuration, during specific use, the wind curtain can block the heat from being transferred to the area of ​​the detection device opposite to the wind curtain, so that the heat received by the area of ​​the detection device opposite to the wind curtain is reduced, thereby reducing the probability of damage to the parts of the detection device in the area opposite to the wind curtain. In addition, by connecting the detection channel to the outside world, the gas discharged from the air jet, that is, the gas forming the wind curtain, can be discharged to the outside world. While this part of the gas is discharged, it can take away at least part of the heat in the detection channel, thereby reducing the heat received by the detection device as a whole, and further reducing the probability of damage to the parts of the detection device.

[0008] It can be seen that the solution adopted in the embodiment of the present application uses the wind curtain to block the heat, and uses the gas forming the wind curtain to take away the heat, so as to reduce the probability of damage to the components of the detection equipment. Compared with the solution in the related art that uses air conditioning to reduce the probability of damage to the components of the detection equipment, the solution adopted in the embodiment of the present application involves fewer components, the structure of the components is simpler, and the solution adopted in the embodiment of the present application consumes less electricity, so the solution adopted in the embodiment of the present application is lower in cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 A schematic diagram of the structure of the heat dissipation device disclosed in an embodiment of the present application;

[0010] Figure 2 A schematic diagram of the arrangement of the heat insulation cavity of the heat dissipation device disclosed in the embodiment of the present application;

[0011] Figure 3 A partial structural schematic diagram of a heat dissipation device disclosed in an embodiment of the present application;

[0012] Figure 4 A schematic diagram of the structure of the detection device disclosed in the embodiment of the present application;

[0013] Figure 5 A schematic diagram showing a part of the internal structure of the detection device disclosed in the embodiment of the present application;

[0014] Figure 6 This is a schematic diagram of a portion of the structure of the detection device disclosed in the embodiment of the present application.

[0015] Description of reference numerals:

[0016] 100-jet element, 100a-first jet element, 100b-second jet element, 100c-third jet element, 100d-fourth jet element, 110-jet port;

[0017] 210 - heat insulation chamber, 220 - wind curtain, 220a - first wind curtain, 220b - second wind curtain, 230 - barrier, 230a - first barrier, 230b - second barrier;

[0018] 300-equipment body, 310-detection channel, 320-accommodation chamber;

[0019] 400-workpiece;

[0020] 500 - rotating member, 510 - first connecting member, 520 - second connecting member, 530 - rotating shaft;

[0021] 610-detection element, 610a-ray source, 610b-detector;

[0022] 700- conveying device;

[0023] 800-connector. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0025] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0026] The heat dissipation device and detection equipment provided in the embodiments of the present application are described in detail below through specific embodiments and their application scenarios in combination with the accompanying drawings.

[0027] Please refer to Figures 1 to 6 As shown, a heat dissipation device is provided in an embodiment of the present application. The heat dissipation device can be used in a detection channel 310 of a detection device. The detection channel 310 is used to accommodate a workpiece 400 and can be connected to the outside. The workpiece 400 is, for example, a die casting. Optionally, the heat dissipation device is, for example, used in the field of industrial flaw detection, and correspondingly, the detection device is, for example, an industrial flaw detection device.

[0028] Specifically, the heat dissipation device includes: an air jet component 100 , wherein the air jet component 100 is provided with an air jet port 110 , and the air jet port 110 is used to jet gas to form an air curtain 220 located outside the workpiece 400 in the detection channel 310 .

[0029] In the embodiment of the present application, the jet port 110 of the heat dissipation device is used to spray gas to form a wind curtain 220 located outside the workpiece 400 in the detection channel 310. With such a configuration, during specific use, the wind curtain 220 can block the heat from being transferred to the area where the detection device and the wind curtain 220 are opposite, so that the heat received by the area where the detection device and the wind curtain 220 are opposite is reduced, thereby reducing the probability of damage to the parts of the area where the detection device and the wind curtain 220 are opposite. In addition, by connecting the detection channel 310 to the outside world, the gas discharged from the jet port 110, that is, the gas forming the wind curtain 220, can be discharged to the outside world. While this part of the gas is discharged, it can take away at least part of the heat in the detection channel 310, thereby reducing the heat received by the detection device as a whole, and further reducing the probability of damage to the parts of the detection device.

[0030] It can be seen that the solution adopted in the embodiment of the present application uses the wind curtain 220 to block the heat, and uses the gas forming the wind curtain 220 to take away the heat, so as to reduce the probability of damage to the components of the detection equipment. Compared with the solution in the related art that uses air conditioning to reduce the probability of damage to the components of the detection equipment, the solution adopted in the embodiment of the present application involves fewer components, the structure of the components is simpler, and the solution adopted in the embodiment of the present application consumes less electricity, so the solution adopted in the embodiment of the present application has lower cost.

[0031] In another embodiment, reference Figure 2 , Figure 4 as well as Figure 5 As shown, the heat dissipation device has an insulating cavity 210, which is used to accommodate the workpiece 400 in the detection channel 310. The cavity wall of the insulating cavity 210 is arranged along the circumference of the detection channel 310, and the wind curtain 220 is used to form at least part of the cavity wall of the insulating cavity 210.

[0032] In the solution adopted in this embodiment, the cavity wall of the heat-insulating cavity 210 is arranged along the circumference of the detection channel 310. When the workpiece 400 is placed inside the heat-insulating cavity 210, the cavity wall of the heat-insulating cavity 210 can block the heat from being transferred to the peripheral side wall of the detection channel 310, thereby further reducing the heat received by the detection device, thereby lowering the probability of damage to the parts of the detection device. In addition, the heat of the workpiece 400 is mainly transferred to the detection device through the peripheral side wall of the detection channel 310, so that the solution adopted in this embodiment can block most of the heat released by the workpiece 400, thereby further reducing the probability of damage to the parts of the detection device.

[0033] In other optional embodiments, the heat dissipation device may not have the insulation cavity 210, or the arrangement direction of the cavity wall of the insulation cavity 210 may be staggered with the circumference of the detection channel 310. For example, the cavity wall of the insulation cavity 210 may be arranged around a first axis, and the first axis may intersect with the axis of the detection channel 310.

[0034] In a further embodiment, reference Figure 2 As shown, the heat dissipation device further includes a baffle 230, which is used to form a part of the cavity wall of the heat insulation cavity 210, and the baffle 230 and the air curtain 220 are arranged along the circumferential direction of the cavity wall of the heat insulation cavity 210. The heat insulation effect of the baffle 230 is relatively stable and is not easily affected by other factors, so that the heat dissipation device has a better heat insulation effect. In addition, the baffle 230 has a relatively simple structure and is easy to process and manufacture.

[0035] In other optional embodiments, the heat dissipation device may not include the baffle 230 . In this case, for example, the air curtain 220 is used to form the entire cavity wall of the heat insulation cavity 210 .

[0036] As a specific implementation, the barrier member 230 is, for example, a barrier plate.

[0037] In a further embodiment, reference Figure 2 As shown, there are at least two barrier members 230, including a first barrier member 230a and a second barrier member 230b, which are arranged opposite to each other in the width direction of the detection channel 310. In this way, the first barrier member 230a and the second barrier member 230b can form a relatively stable heat insulation barrier in the width direction of the detection channel 310, thereby better preventing heat from being transferred in the width direction of the detection channel 310.

[0038] In other optional embodiments, the first barrier 230 a and the second barrier 230 b may also be staggered with each other. In this case, the first barrier 230 a is, for example, disposed opposite to the air curtain 220 in the width direction of the detection channel 310 .

[0039] In a further embodiment, reference Figure 5 As shown, the number of the jet components 100 is at least two, including a first jet component 100a and a second jet component 100b, the jet port 110 of the first jet component 100a is a first jet port, the jet port 110 of the second jet component 100b is a second jet port, and the wind curtain 220 formed by the first jet port is opposite to the wind curtain 220 formed by the second jet port in the height direction of the detection channel 310.

[0040] In this embodiment, the air curtain 220 formed by the first air jet is arranged opposite to the air curtain 220 formed by the second air jet, so that the flow field characteristics inside the heat insulation cavity 210 are easy to be optimized and controlled. For example, the flow field characteristics can be optimized by adjusting parameters such as the shape, size, angle and wind speed of the air jet 110.

[0041] In other optional embodiments, the wind curtain 220 formed by the first jet port and the wind curtain 220 formed by the second jet port may be staggered in the height direction of the detection channel 310. In this case, the wind curtain 220 formed by the first jet port is, for example, arranged relative to the barrier 230 in the height direction of the detection channel 310.

[0042] In an optional embodiment, reference Figure 2 and Figure 5 As shown, the heat dissipation device may also include the above-mentioned first barrier 230a, the second barrier 230b, and the first jet port and the second jet port, and the width direction of the detection channel 310 mentioned above is perpendicular to the height direction of the detection channel 310, and the extension direction of the detection channel 310 is perpendicular to the width direction of the detection channel 310 and the height direction of the detection channel 310. In addition, Figure 5 The direction indicated by the arrow line C is the width direction of the detection channel 310 , the direction indicated by the arrow line D is the height direction of the detection channel 310 , and the direction indicated by the arrow line E is the extension direction of the detection channel 310 .

[0043] In another embodiment, a reflective structure is provided on a side of the barrier 230 facing the workpiece 400 , and the reflective structure can reflect the heat radiation from the workpiece 400 back, so that the detection device receives less heat.

[0044] In other optional embodiments, the side of the barrier 230 facing the workpiece 400 may not be provided with a reflective structure.

[0045] As a specific implementation, the reflective structure is, for example, a polished metal sheet.

[0046] In another embodiment, a heat insulating member is provided inside the barrier 230. The heat insulating member can also block the transfer of heat, thereby making the heat insulating effect of the barrier 230 better. The heat insulating performance of the heat insulating member here can be better than the heat insulating performance of the barrier 230 itself, thereby achieving a further heat insulating effect.

[0047] In other optional embodiments, no heat insulation member may be provided inside the barrier member 230 .

[0048] As a specific implementation, the heat insulating element is, for example, a foam element. More specifically, the heat insulating element is made of, for example, a foam material.

[0049] In an optional embodiment, the side of the barrier 230 facing the workpiece 400 is provided with the reflective structure described above, for example, and the interior of the barrier 230 is provided with the heat insulation member described above, for example.

[0050] In another embodiment, the two opposite sides of the barrier 230 in the extension direction of the detection channel 310 are respectively used to seal and connect with the two ends of the detection channel 310 along its own extension direction. Such a configuration can prevent heat from escaping from the gap between the end of the detection channel 310 in its own extension direction and the barrier 230, thereby further reducing the heat received by the detection device.

[0051] In other optional embodiments, there may also be gaps between the two ends of the detection channel 310 in its extension direction and the barrier 230 .

[0052] As a specific implementation, for example, a heat insulating sealing material is filled between the barrier 230 and the end of the detection channel 310 to achieve a sealed connection between the two opposite sides of the barrier 230 in the extension direction of the detection channel 310 and the two ends of the detection channel 310 in the extension direction thereof.

[0053] In another embodiment, each barrier 230 corresponds to at least one jet component 100, and each barrier 230 is connected to the jet component 100 corresponding thereto. With such a configuration, when installing the heat dissipation device, the position of the barrier 230 is determined, and the position of the jet component 100 corresponding thereto is determined accordingly, so that the user can complete the installation of the heat dissipation device more conveniently and quickly. In an optional embodiment, each barrier 230 corresponds to two jet components 100, and the two jet components 100 are respectively connected to the two ends of the barrier 230.

[0054] In other optional embodiments, there may be no connection relationship between each baffle 230 and its corresponding jet component 100. In other words, each baffle 230 and its corresponding jet component 100 are arranged at intervals.

[0055] In another embodiment, reference Figure 1 As shown, the air jet 110 is tilted, and along the jet direction of the gas, the distance between the wind curtain 220 and the workpiece 400 gradually decreases. In this way, the gas can offset part of the heat, thereby further reducing the heat received by the detection device. At the same time, the axis of the air jet 110 is tilted toward the workpiece, and the formed wind curtain is closer to the workpiece, thereby more reliably blocking the heat from being transferred to the inside of the device.

[0056] Specifically, the jet nozzle 110 is tilted, for example, and the jet direction of the gas is, for example, along the axis of the jet nozzle 110. More specifically, when the detection device is horizontally arranged, the angle between the jet direction of the gas and the horizontal direction is, for example, an acute angle. It should be noted that Figure 1 The direction indicated by the arrow line A is the horizontal direction, the direction indicated by the arrow line B is the injection direction of the gas, and β refers to the angle between the injection direction of the gas and the horizontal direction.

[0057] In other optional embodiments, along the spraying direction of the gas, the distance between the air curtain 220 and the workpiece 400 may also be always the same.

[0058] In another embodiment, the number of the jet ports 110 is at least two, and the jet ports 110 are spaced apart along the axis of the jet element 100 , for example, and the distance between any two adjacent jet ports 110 is equal, and the calibers of the jet ports 110 are equal, for example.

[0059] In this embodiment, the jet ports 110 are evenly arranged along the axial direction of the jet element 100 and the calibers of the jet ports 110 are equal, which is conducive to maintaining the stability of the jet pressure and can more accurately control the jet pressure and jet volume.

[0060] In other optional embodiments, the distance between two adjacent air jets 110 may be different, and the diameters of at least two air jets 110 may be different, for example.

[0061] In a further embodiment, reference Figure 2 As shown, the number of the jet components 100 is at least two, including the third jet component 100c and the fourth jet component 100d, the air curtain 220 formed by the jet port 110 of the third jet component 100c is the first air curtain 220a, and the air curtain 220 formed by the jet port 110 of the fourth jet component 100d is the second air curtain 220b, the first air curtain 220a and the second air curtain 220b can be located on the same side of the workpiece 400, the first air curtain 220a intersects with the second air curtain 220b, and the intersection of the two is located on the side of the workpiece 400 facing both the third jet component 100c and the fourth jet component 100d. In this arrangement, the first air curtain 220a and the second air curtain 220b are located on the same side of the workpiece 400 as a whole, and the two have a better covering effect on the workpiece 400, and in this arrangement, the gas distribution is more uniform, so that the temperature of each position of the workpiece 400 is more uniform.

[0062] In other optional embodiments, the number of the injection member 100 may also be one.

[0063] In another embodiment, the number of the air jets 110 is at least two, and the air jet component 100 is further provided with an air inlet and an air delivery cavity. The air delivery cavity can extend along the extension direction of the detection channel 310, and the air inlet is connected to each of the air jets 110 through the air delivery cavity.

[0064] In this embodiment, the number of the air jets 110 is at least two. During specific use, each air jet 110 can form an air curtain 220, so that the heat dissipation device can better block heat.

[0065] In other optional embodiments, the number of the air jet 110 may also be one.

[0066] It should be noted that in the embodiment of the present application, there is no limitation on the shape, number and arrangement of the air jets 110 , which can be set according to actual needs. The specific air jets 110 are, for example, circular, square or strip-shaped.

[0067] As a specific embodiment, the jet component 100 is, for example, a jet tube, and the inner cavity of the jet tube is, for example, configured as a gas delivery cavity. The cross-sectional shape of the jet tube in a direction perpendicular to its own axis is, for example, square or elliptical, and along the axis direction of the jet tube, the diameters of the jet tube at various positions may be equal or unequal.

[0068] It should be noted that in the embodiment of the present application, there is no restriction on the cross-sectional shape of the air jet pipe in a direction perpendicular to its own axis and the diameter size at each position in the air jet pipe's own axis, and they can be set according to actual needs.

[0069] In an optional embodiment, reference Figure 3 As shown, when the number of the air jets 110 is at least two, the air jets 110 are, for example, arranged in sequence along the extension direction of the detection channel 310. In this way, at least two air curtains 220 can be formed in sequence along the extension direction of the detection channel 310, so that the heat dissipation device can better prevent heat from being transferred to the detection device.

[0070] It should be noted that the air inlet may be connected to a single air source or to multiple different types of air sources at the same time. Specifically, the air inlet is connected to the air source, for example, through a gas drive device, such as an air compressor or a fan.

[0071] In an optional embodiment, reference Figure 3 As shown, the air inlet is, for example, connected to a joint 800, by means of which the air inlet can be conveniently connected to other structures, such as the gas drive device mentioned above.

[0072] In another embodiment, reference Figure 5 and Figure 6As shown, the air curtain 220 can be located on the side of the workpiece 400 facing the detection element 610 of the detection device. The detection element 610 is one of the components of the detection device. The detection element 610 is usually sensitive to temperature. By locating the air curtain 220 on the side of the workpiece 400 facing the detection element 610 of the detection device, the air curtain 220 can block the heat from being transferred to the detection element 610, thereby reducing the heat received by the detection element 610, thereby extending the service life of the detection element 610. In addition, the air curtain 220 has less impact on the detection of the workpiece 400, thereby increasing the detection accuracy of the workpiece 400.

[0073] In other optional embodiments, the air curtain 220 may not be provided on the side of the workpiece 400 facing the detection element 610 of the detection device, or the barrier 230 described above may be located on the side of the workpiece 400 facing the detection element 610 of the detection device.

[0074] As a specific implementation method, refer to Figure 5 and Figure 6 As shown, the detection element 610 is, for example, a ray source 610a or a detector 610b, the ray source 610a is used to emit X-rays to the workpiece 400, the detector 610b is used to receive the rays passing through the workpiece 400, the wind curtain 220 is located on the side of the workpiece 400 facing the ray source 610a or the wind curtain 220 is located on the side of the workpiece 400 facing the detector 610b, or, the wind curtain 220 is provided on both the side of the workpiece 400 facing the ray source 610a and the side of the workpiece 400 facing the detector 610b.

[0075] refer to Figures 4 to 6 As shown, a detection device is also provided in an embodiment of the present application, which includes a device body 300 and the heat dissipation device described above. The device body 300 is provided with a detection channel 310 for accommodating a workpiece 400. The detection channel 310 can be connected to the outside world, and the heat dissipation device is arranged in the detection channel 310. The heat dissipation device described above has a low cost, thereby making the overall cost of the detection device low. The detection device is used for industrial flaw detection, for example, and specifically, the detection device is, for example, an industrial flaw detection device.

[0076] In another embodiment, reference Figure 4 As shown, both ends of the detection channel 310 in its own extension direction penetrate the device body 300 to communicate with the outside world, and the two ends of the detection channel 310 in its own extension direction are respectively used to allow the workpiece 400 to enter and exit the detection channel 310. In this way, the two ends of the detection channel 310 in its own extension direction can be used for both the workpiece 400 to enter and exit the detection channel 310 and the gas to enter and exit the detection channel 310. In this way, there is no need to add additional structures to allow the gas to enter and exit the detection channel 310, so that the overall structure of the detection device is relatively simple, and processing and manufacturing are relatively convenient.

[0077] In another embodiment, reference Figure 5 and Figure 6 As shown, the detection device further includes a rotating member 500, the device body 300 is provided with a receiving cavity 320, the detection channel 310 passes through the receiving cavity 320 along its own extension direction, the rotating member 500 is arranged in the receiving cavity 320, and is rotatably arranged in the device body 300, and the rotation axis of the rotating member 500 intersects with the extension direction of the detection channel 310, and the ray source 610a and the detector 610b are both arranged in the rotating member 500 and are arranged opposite to each other. In this arrangement, the positions of the ray source 610a and the detector 610b are adjustable, so that the detection device can detect the workpiece 400 in multiple different directions, and thus can detect the workpiece 400 more comprehensively.

[0078] As a specific embodiment, the rotating member 500, for example, includes a rotating shaft 530, a first connecting member 510 and two second connecting members 520. The two second connecting members 520, for example, are both arranged on the first connecting member 510 and are arranged opposite to each other. The overall shape of the first connecting member 510 and the two second connecting members 520 is similar to a U-shape. The ray source 610a and the detector 610b are respectively arranged on the two second connecting members 520. A rotating shaft 530 is also provided at the center of the first connecting member 510. The rotating shaft 530 is rotatably connected to the device body 300 to realize that the rotating member 500 can be rotatably arranged on the device body 300, and the first connecting member 510 and the second connecting member 520 are, for example, symmetrical about the axis of the rotating shaft 530, so that the ray source 610a and the detector 610b can both rotate around the axis of the rotating shaft 530.

[0079] In another embodiment, the detection device further includes a conveying device 700, which is disposed in the detection channel 310 and is used to convey the workpiece 400, and the conveying direction of the conveying device 700 coincides with or is parallel to the extension direction of the detection channel 310. With the help of the conveying device 700, the position of the workpiece 400 in the detection channel 310 can be adjusted more conveniently, so that the detection device is more convenient to use.

[0080] As a specific implementation, the conveying device 700 is, for example, a belt conveyor, and the type of the conveyor belt of the belt conveyor is, for example, a metal crawler type or a chain type.

[0081] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A heat dissipation device, which can be used in a detection channel (310) of a detection device, wherein the detection channel (310) is used to accommodate a workpiece (400) and can be connected to the outside, characterized in that: include: An air jet component (100), the air jet component (100) being provided with an air jet port (110), the air jet port (110) being used to jet gas to form an air curtain (220) located outside the workpiece (400) in the detection channel (310); The heat dissipation device comprises a heat-insulating cavity (210), the heat-insulating cavity (210) being used to accommodate the workpiece (400) in the detection channel (310), the cavity wall of the heat-insulating cavity (210) being arranged along the circumference of the detection channel (310), and the air curtain (220) being used to form at least a portion of the cavity wall of the heat-insulating cavity (210).

2. The heat dissipation device according to claim 1, characterized in that: The heat dissipation device further comprises a baffle (230), the baffle (230) being used to form a portion of the cavity wall of the heat insulation cavity (210), the baffle (230) and the air curtain (220) being arranged along the circumference of the cavity wall of the heat insulation cavity (210).

3. The heat dissipation device according to claim 2, characterized in that: The number of the barrier members (230) is at least two, including a first barrier member (230a) and a second barrier member (230b), the first barrier member (230a) and the second barrier member (230b) being arranged opposite to each other in the width direction of the detection channel (310); And / or, the number of the jet components (100) is at least two, including a first jet component (100a) and a second jet component (100b), the jet port (110) of the first jet component (100a) is a first jet port, the jet port (110) of the second jet component (100b) is a second jet port, and the wind curtain (220) formed by the first jet port and the wind curtain (220) formed by the second jet port are opposite in a height direction of the detection channel (310).

4. The heat dissipation device according to claim 2, characterized in that: A reflective structure is provided on a surface of the barrier member (230) facing the workpiece (400), and / or a heat insulating member is provided inside the barrier member (230).

5. The heat dissipation device according to claim 2, characterized in that: The two opposite surfaces of the barrier member (230) in the extension direction of the detection channel (310) are respectively used to be sealed and connected to the two ends of the detection channel (310) along its own extension direction.

6. The heat dissipation device according to claim 2, characterized in that: Each of the baffles (230) corresponds to at least one of the jetting components (100), and each of the baffles (230) is connected to the jetting component (100) corresponding thereto.

7. The heat dissipation device according to claim 1, characterized in that: The gas jet (110) is arranged obliquely, and along the gas jetting direction, the distance between the air curtain (220) and the workpiece (400) gradually decreases; And / or, the number of the jet ports (110) is at least two, the jet ports (110) are arranged at intervals along the axial direction of the jet component (100), the distance between any two adjacent jet ports (110) is equal, and the calibers of the jet ports (110) are equal.

8. The heat dissipation device according to claim 7, characterized in that: The number of the jet components (100) is at least two, including a third jet component (100c) and a fourth jet component (100d); the wind curtain (220) formed by the jet port (110) of the third jet component (100c) is a first wind curtain (220a); the wind curtain (220) formed by the jet port (110) of the fourth jet component (100d) is a second wind curtain (220b); the first wind curtain (220a) and the second wind curtain (220b) may be located on the same side of the workpiece (400); the first wind curtain (220a) and the second wind curtain (220b) intersect, and the intersection of the two is located on the side of the workpiece (400) facing both the third jet component (100c) and the fourth jet component (100d).

9. The heat dissipation device according to claim 1, characterized in that: The number of the air jets (110) is at least two, and the air jet component (100) is further provided with an air inlet and an air delivery cavity, the air delivery cavity can extend along the extension direction of the detection channel (310), and the air inlet is connected to each of the air jets (110) through the air delivery cavity.

10. The heat dissipation device according to claim 1, characterized in that: The air curtain (220) may be located on a side of the workpiece (400) facing a detection element (610) of the detection device.

11. A detection device, characterized in that: The invention comprises a device body (300) and a heat dissipation device according to any one of claims 1 to 10, wherein the device body (300) is provided with a detection channel (310) for accommodating a workpiece (400), the detection channel (310) can be communicated with the outside, and the heat dissipation device is arranged in the detection channel (310).

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