CN217219038U

CN217219038U - CT machine air-cooling heat dissipation channel, CT machine air-cooling heat dissipation system and CT machine

Info

Publication number: CN217219038U
Application number: CN202120379015.9U
Authority: CN
Inventors: 滕雨; 亚当·托马斯; 格兰特·亚瑟·艾伯特; 杨宁滔; 滕长青; 郑靖明; 大卫·A·云克
Original assignee: Siemens Shanghai Medical Equipment Ltd
Current assignee: Siemens Shanghai Medical Equipment Ltd
Priority date: 2021-02-19
Filing date: 2021-02-19
Publication date: 2022-08-19
Anticipated expiration: 2031-02-19

Abstract

The embodiment of the utility model provides an in disclose a CT machine forced air cooling heat dissipation channel, CT machine forced air cooling system and CT machine. The inner space of the CT frame component is divided into a first area, a second area and a third area along the axial direction; the channel includes: an air inlet duct disposed in the first region independent of components not requiring active heat dissipation; the first annular channel and the second annular channel are formed by respectively sealing the second area and the third area; and a fan is arranged at the interface of the first annular channel and the air inlet pipeline and used for sucking the airflow introduced through the air inlet pipeline into the first annular channel to form gas with set pressure, and then the gas enters the second annular channel through a ventilation gap between the first annular channel and the second annular channel, exchanges heat with elements needing active heat dissipation and then is discharged from a hot gas outlet at the top of the second annular channel. The embodiment of the utility model provides an in technical scheme can improve the cooling effect to the part that generates heat.

Description

CT machine air-cooling heat dissipation channel, CT machine air-cooling heat dissipation system and CT machine

Technical Field

The utility model relates to the field of medical equipment, especially a Computer Tomography (CT) machine wind cooling heat dissipation channel, CT machine air-cooled cooling system and CT machine.

Background

As a medical device, the CT machine is widely used in the medical and health field to assist a doctor in imaging a patient. Generally, a CT machine includes: the X-ray CT device comprises a bottom supporting component, a CT frame component, and electro-physical equipment such as an X-ray bulb tube, a collimator and an X-ray detector which are arranged in the CT frame component.

Wherein, CT frame part is installed on bottom sprag part, includes: a tilt frame, a slew bearing, a turntable (also called a swivel frame) and a frame housing for sealing the tilt frame, the slew bearing and the turntable. Wherein, the inclined bracket and the turntable are respectively connected with an inner ring (or an outer ring) and an outer ring (or an inner ring) of the rotary bearing. The CT rack component can be driven by the inclined bracket to tilt and turn around the horizontal direction vertical to the axis of the rotary table. Electro-physical equipment such as an X-ray bulb tube, a collimator and an X-ray detector are mounted on the turntable and can rotate around the axis of the turntable along with the turntable. The CT frame component is provided with a frame hole for the bed plate of the examination table bearing the patient to enter and exit the scanning area. In general, a direction parallel to the axis of the turntable is referred to as a Z direction, a horizontal direction perpendicular to the Z direction is referred to as an X direction, and directions perpendicular to the X direction and the Z direction, respectively, are referred to as Y directions.

The above-mentioned electrical and physical devices have high requirements for their operating environments, such as the temperature of the cooling oil in the bulb tube should not exceed 80 degrees, the external temperature of the X-ray detector should not exceed 40 degrees, etc. However, some components, such as a bulb, a high voltage generator, etc., generate several tens of kilowatts of heat during operation, and if the heat cannot be dissipated in time, the performance of the electrical components is seriously affected, image artifacts or shutdown are caused, and the diagnosis of a patient is affected.

On the other hand, in order to pursue high-precision image quality and faster imaging speed, a large-capacity bulb and a high rotation speed have become development trends of CT technology. However, the overall shape of the CT machine is designed to be more and more miniaturized and curved. This results in higher and higher internal temperatures and higher noise levels in existing CT devices during operation.

At present, the commonly adopted cooling and heat dissipation modes of the CT machine comprise an air cooling heat dissipation system and a water cooling heat dissipation system. In the conventional air-cooled heat dissipation system, an air inlet and an air outlet are formed in a rack housing, and a heat dissipation fan is provided in the rack housing for dissipating heat from a main heat generating component mounted on a turntable. However, the air-cooled heat dissipation system has no effective cooling path, so that the cool air entering from the air inlet cannot effectively cool all the heat generating components; moreover, the hot air subjected to heat exchange is easily repeatedly circulated back inside the rack case and cannot be effectively discharged to the outside of the body of the rack case. In addition, some air-cooled heat dissipation systems usually adopt a method of increasing the rotation speed of the fan or increasing the number of fans in order to improve the heat dissipation effect. However, as the fan speed increases or the number thereof increases, the noise it generates also rapidly increases. In addition, some solutions involve cooling-independent parts in the air-cooled channel, such as the transmission belt and the slip ring, and the design of the air flow and the air-cooled channel may affect the cooling-independent parts.

Therefore, how to provide an air-cooled heat dissipation scheme with good heat dissipation effect, low noise, and small influence on components that do not need active heat dissipation and are unrelated to cooling is a problem to be solved.

SUMMERY OF THE UTILITY MODEL

In view of this, the embodiment of the present invention provides an air-cooled heat dissipation channel of a CT machine on the one hand, and provides an air-cooled heat dissipation system of a CT machine and a CT machine on the other hand, for improving the cooling effect on the heat generating components of the CT machine, reducing the system noise, and simultaneously reducing the influence on the components which are not related to cooling and do not need active heat dissipation.

The embodiment of the utility model provides a CT machine forced air cooling heat dissipation channel, CT machine includes CT frame part, CT frame part includes the carousel; the interior space of the CT gantry component is divided axially into three separate regions: the turntable comprises a first area, a second area and a third area, wherein the interface of the second area and the third area is a plane where the turntable is located; the element which does not need active heat dissipation is positioned in the first area, and the main body of the element which is arranged on the turntable and needs active heat dissipation is positioned in the third area; the air-cooled heat dissipation channel includes: at least one closed air inlet duct arranged in the first area, wherein the air inlet duct is independent from the element without active heat dissipation and is provided with an air flow inlet and an air flow outlet; the airflow inlet is communicated with an air inlet formed in the housing of the rack on the first area side; and a first annular channel and a second annular channel which are formed by respectively sealing the second area and the third area by using the turntable as a part of sealing piece; the first annular channel is provided with an airflow suction inlet communicated with the airflow outlet at a position corresponding to the airflow outlet of the air inlet pipeline; a vent gap and/or a vent aperture is provided between the first annular channel and the second annular channel; the top of the second annular channel is provided with a hot gas outlet; at least one fan is arranged at the airflow suction port and used for sucking airflow introduced through the air inlet pipeline into the first annular channel and filling the first annular channel, and gas with set pressure is formed in the first annular channel; the gas with set pressure enters the second annular channel through the ventilation gaps and/or ventilation pores between the first annular channel and the second annular channel to exchange heat with the element needing active heat dissipation; and the hot air after heat exchange is discharged out of the CT machine frame component from the hot air outlet.

In one embodiment, the CT gantry component includes a tilt gantry; the first annular channel and the second annular channel are formed by matching a first partition plate, a second partition plate and a peripheral sealing plate with the turntable and the rack shell; wherein the first partition plate is disposed at an interface of the first region and the second region, and an inner edge of the first partition plate is mountable on the inclined bracket; the first clapboard is provided with the airflow suction inlet; the second partition plate is arranged on the interface of the second area and the third area, and the inner edge of the second partition plate has an appearance matched with the outer edge of the rotary disc; the peripheral sealing plate is used for connecting one sides, close to the rack shell, of the first partition plate and the second partition plate, the peripheral sealing plate, the first partition plate and the second partition plate form a U-shaped cavity with cross sections being two vertical edges and unequal in length, and the installed U-shaped cavity and the rotating disc form a first annular channel; the peripheral closing plate of the first annular channel is attached to a peripheral rack housing or forms a part of the rack housing; after the installation, the second clapboard, the rotary table and the rack shell at the third area side jointly enclose the second annular channel, and the hot air outlet is formed in the top of the rack shell at the third area side.

In one embodiment, the CT gantry component includes a tilt gantry; the first annular channel and the second annular channel are formed by matching a first partition plate and a second partition plate with the rotary table and the rack shell; the first partition plate is arranged on the interface of the first area and the second area, the outer edge of the first partition plate has an appearance matched with the outer shell of the rack, and the inner edge of the first partition plate can be arranged on the inclined bracket; the first clapboard is provided with the airflow suction inlet; the second partition plate is arranged on the interface of the second area and the third area, the outer edge of the second partition plate has the appearance matched with the outer shell of the rack, and the inner edge of the second partition plate has the appearance matched with the outer edge of the turntable; the first partition plate, the second partition plate, the rotary table and the peripheral frame shell form a first annular channel together after installation; after the installation, the second clapboard, the rotary table and the rack shell at the third area side jointly enclose the second annular channel, and the hot air outlet is arranged at the top of the rack shell at the third area side.

In one embodiment, the number of inlet ducts is two, and the inlet ducts are respectively positioned at two ends of a diagonal line of the CT frame part passing through the center of the frame hole.

In one embodiment, the air intake duct is an air intake duct having a large airflow inlet and a small airflow outlet, and the cross section of the air intake duct is a trapezoid.

In one embodiment, the vent gap and/or vent aperture between the first annular channel and the second annular channel comprises: the turntable is provided with a ventilation gap and/or a ventilation pore, and the electrical and physical equipment arranged on the turntable is provided with a ventilation gap and/or a ventilation pore.

In one embodiment, a portion of the electro-physical equipment mounted on the turntable is located within the first annular channel and another portion is located within the second annular channel.

In one embodiment, an air filter is disposed at the air flow inlet or the air inlet for removing dust and impurities from the air flow entering the air-cooled heat dissipation channel.

The embodiment of the utility model provides an in provide a CT machine forced air cooling system, include: a turntable; the electric physical equipment is arranged on the turntable and is provided with a ventilation gap and/or a ventilation pore; the air-cooled heat dissipation channel of the CT machine according to any of the above embodiments; and the fan is arranged at each airflow suction port of the air-cooling heat dissipation channel of the CT machine.

The embodiment of the utility model provides an in provide a CT machine, include: the CT machine air-cooling heat dissipation system is provided.

It can be seen from the above-mentioned scheme that, the embodiment of the utility model provides an interior space with CT frame part divides into three independent region: the device comprises a first area, a second area and a third area, wherein elements which do not need active heat dissipation are positioned in the first area, and a main body of the elements which are arranged on a turntable and need active heat dissipation is positioned in the third area; the interface between the second region and the third region is the plane of the turntable, after which the heat exchange and/or the air flow inside the housing parts can be made less influential on the components in the first region, in particular the drive belt and the slip ring, by providing an air inlet duct for the air flow in the first region, which is independent of elements which do not require active heat dissipation. Therefore, the air cooling process does not affect the components irrelevant to cooling. In addition, the second area and the third area are respectively sealed into a first annular channel and a second annular channel by taking the turntable as a part of sealing piece, at least one fan is arranged at the interface between the air inlet pipeline and the first annular channel, the airflow introduced through the air inlet pipeline can be sucked into the first annular channel and fills the first annular channel, gas with set pressure is formed in the first annular channel, and then the gas with the set pressure can enter the second annular channel through a ventilation gap and/or a ventilation pore which are arranged between the first annular channel and the second annular channel, so that the heat exchange is carried out on the element needing active heat dissipation; the hot air after heat exchange is discharged out of the CT frame component from the hot air outlet. Therefore, faster air circulation is realized without increasing the number of fans or the rotating speed of the fans, the cooling effect is improved, and the noise is reduced.

Furthermore, by providing a separate peripheral closure plate for the first annular channel, the design of the housing enclosure can be simplified, reducing the complexity of the housing enclosure. Of course, using a portion of the rack enclosure as a peripheral closure plate directly reduces the use of raw materials. Different implementation modes can improve the flexibility of the technical scheme.

In addition, through opening the ventilation gaps and/or ventilation holes on the element needing active heat dissipation, the airflow in the first annular channel can cool the element needing active heat dissipation while flowing through the ventilation gaps and/or ventilation holes on the element needing active heat dissipation into the second annular channel, and therefore the heat exchange efficiency is improved.

In addition, by arranging a part of the elements which are arranged on the rotating disc and need to actively dissipate heat in the first annular channel and the other part of the elements which are arranged on the rotating disc and need to actively dissipate heat in the second annular channel, the part arranged in the first annular channel can be positioned in the deep part of cold air, and the cooling mode of the air bath improves the heat exchange efficiency.

Finally, an air filter is arranged at the air flow inlet or the air inlet, so that dust and impurities in the air flow entering the air-cooling heat dissipation channel can be removed.

Drawings

The above and other features and advantages of the present invention will become more apparent to those of ordinary skill in the art by describing in detail preferred embodiments thereof with reference to the attached drawings, in which:

fig. 1 is a schematic structural diagram of an air-cooling heat dissipation channel of a CT machine according to an embodiment of the present invention.

Fig. 2 to 5 are schematic structural views of an air-cooling heat dissipation channel of a CT machine according to an example of the present invention. Fig. 2 is a front view of the CT-machine air-cooling heat dissipation channel with the housing of the CT-machine removed, fig. 3A and 3B are schematic structural views of the first annular channel from two front and rear views, fig. 4 is a rear view of the CT-machine air-cooling heat dissipation channel with the housing of the CT-machine removed, and fig. 5 is an external view of the CT-machine component including the CT-machine air-cooling heat dissipation channel.

Wherein the reference numbers are as follows:

Detailed Description

The embodiment of the utility model provides an in, in order to improve the cooling effect to the CT machine heating element to noise reduction and to the influence that need not initiative radiating component irrelevant with the cooling, consider designing one can realize faster gas flow's forced air cooling passageway and need not to increase fan quantity or improve fan speed, and this forced air cooling passageway can not influence and cool off irrelevant need not initiative radiating component.

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention is further described in detail by referring to the following embodiments.

Fig. 1 is a schematic structural diagram of an air-cooled heat dissipation channel of a CT machine according to an embodiment of the present invention. As shown in fig. 1, in the present embodiment, the internal space of the CT gantry part 1 is divided into three independent regions along the axial direction: a first region a, a second region B and a third region C, the interface of which is the plane in which the turntable 11 in the CT gantry part is located. Wherein, the elements which do not need active heat dissipation are positioned in the first area a, and the main bodies of the

elements

12 and 13 which are installed on the rotating disk 11 and need active heat dissipation are positioned in the third area C. This forced air cooling heat dissipation passageway includes: at least one closed inlet duct 21 (shown in fig. 1 as comprising two closed inlet ducts) disposed in the first region a and a first annular channel 22 and a second annular channel 23 enclosing the second region B and the third region C, respectively, with the turntable 11 as a part of the enclosure.

Each of the air intake ducts 21 is provided independently of members not requiring active heat dissipation, such as a belt and a slip ring (not shown), and has an airflow inlet 211 and an airflow outlet 212. The airflow inlet 211 communicates with an intake port 141 provided in the first area a-side chassis cover 14. Wherein, in order to reduce the influence on the components which do not need active heat dissipation, the air inlet duct 21 can be arranged far away from the center of the rack hole 15 of the CT rack component.

The first annular passage 22 is provided with an airflow suction port 221 communicating with the airflow outlet port 212 at a position corresponding to the airflow outlet port 212 of the intake duct 21. The top of the second annular channel 23 has a hot gas exhaust port 231. The first annular channel 22 and the second annular channel 23 have a plurality of vent slits and/or vent apertures 222 therebetween. As shown in fig. 1, the plurality of vent slits and/or vent apertures 222 may include: air gaps and/or air holes are formed on the rotary table 11, and air gaps and/or air holes are formed on the

elements

12 and 13, such as the

elements

12 and 13, which need active heat dissipation, of the electrical and physical equipment installed on the rotary table 11.

At least one fan 24 is disposed at the air suction inlet 221 for sucking the air introduced through the air intake duct 21 into the first annular passage 22 and filling the first annular passage 22, and forming a gas having a set pressure in the first annular passage 22; the gas with set pressure enters the second annular channel 23 through the ventilation gaps and/or ventilation holes 222 between the first annular channel 22 and the second annular channel 23 to exchange heat with the

elements

12 and 13 needing active heat dissipation; the hot air after heat exchange is discharged from the hot air outlet 231 to the outside of the CT gantry 1.

In specific implementation, the air-cooling heat dissipation channel of the CT machine can be implemented in various ways. For example, fig. 2 to 5 are schematic structural diagrams of an air-cooling heat dissipation channel of a CT machine according to an example of the present invention. Fig. 2 is a front view of the CT-machine air-cooling heat dissipation channel with the housing of the CT-machine removed, fig. 3A and 3B are schematic structural views of the first annular channel from two front and rear views, fig. 4 is a rear view of the CT-machine air-cooling heat dissipation channel with the housing of the CT-machine removed, and fig. 5 is an external view of the CT-machine component including the CT-machine air-cooling heat dissipation channel.

As shown in fig. 2, there are two air inlet ducts 21, which are respectively located at two ends of the diagonal of the CT gantry part 1 passing through the center of the gantry hole. In order to improve the air intake effect, the air intake duct 21 has a large airflow inlet 211 and a small airflow outlet 212, which are trapezoidal in cross section.

As shown in fig. 3A to 4, the first annular passage 22 in the present embodiment is defined by a first partition 223, a second partition 224, the rotary disk 11 and a peripheral closing plate 225.

Wherein the first partition 223 is disposed at the interface of the first region a and the second region B, and an inner edge 2231 of the first partition 223 has an interface mountable on the angled support 16 of the CT gantry portion 1 for mounting on the angled support 16 of the CT gantry portion 1. The first partition 223 is opened with an airflow suction port 221.

The second partition 224 is disposed at the interface of the second area B and the third area C, and an inner edge 2241 of the second partition 224 has a shape matching the outer edge of the turntable 11. In order not to prevent the turntable 11 from freely rotating, a gap is formed between the inner edge of the second partition plate 224 and the outer edge of the turntable 11, and the gap is adjustable. For example, in one embodiment, adjustment may be made by adjusting the mounting position between second bulkhead 224 and peripheral closure plate 225.

The peripheral closing plate 225 serves to connect the sides of the first and

second partitions

223 and 224 close to the housing of the rack, i.e., to peripherally close the space between the first and

second partitions

223 and 224. The peripheral closing plate 225, the first partition plate 223 and the second partition plate 224 together form a U-shaped cavity with two unequal vertical edges in cross section, and the installed U-shaped cavity and the rotating disc 11 together enclose a first annular channel 22. The peripheral closure plate 225 of the first annular channel 22 may be attached or mounted to the peripheral rack enclosure 14; alternatively, a portion of the gantry housing 14 may be formed, i.e., the peripheral seal 225 may separate the original gantry housing of the CT gantry portion into two portions, namely, the gantry housing 14 corresponding to the first region a and the gantry housing 14 corresponding to the third region C, which itself serves as the gantry housing 14 corresponding to the second region B.

The second annular channel 23 in this embodiment may be defined by the second partition 224, the turntable 11, and the rack enclosure 14 on the third area side after installation. Wherein, the top of the rack housing 14 at the third area side is opened with a hot air outlet 231.

It can be seen that the first annular channel 22 and the second annular channel 23 in this embodiment are formed by a first diaphragm 223, a second diaphragm 224, and a peripheral seal plate 225 that cooperate with the turntable 11 and the rack housing 14.

Furthermore, in other embodiments, the first annular channel 22 and the second annular channel 23 may be formed by only the first partition 223 and the second partition 224 in cooperation with the turntable 11 and the rack housing 14. That is, in this embodiment, the peripheral closing plate 225 described above may not be provided.

Wherein the first partition 223 is also disposed at the interface of the first area a and the second area B, and the outer edge of the first partition 223 has a shape that fits the rack housing 14 and is mountable on the rack housing 14. The inner edge of the first partition 223 has an interface that can be mounted on the tilt frame 16 of the CT gantry component 1 for mounting on the tilt frame 16. The first partition 223 is opened with an airflow suction port 221.

A second bulkhead 224 is disposed at the interface of the second region B and the third region C, and an outer edge of the second bulkhead 224 has a shape that mates with the rack enclosure 14 and is mountable to the rack enclosure 14. The inner edge of the second partition 224 has a shape that matches the outer edge of the turntable 11. In order not to obstruct the free rotation of the rotating disk 11, there is a gap between the inner edge of the second partition plate 224 and the outer edge of the rotating disk 11, and the gap is adjustable. For example, in one embodiment, adjustment may be by adjusting the mounting position between second bulkhead 224 and peripheral closure plate 225.

The first partition 223, the second partition 224, the turntable 11 and the peripheral housing 14 together enclose the first annular channel 22. Meanwhile, after installation, the second partition 224, the turntable 11 and the rack housing 14 on the third area side together enclose the second annular channel 23, and a hot air outlet 231 is opened at the top of the rack housing 14 on the third area side.

In a specific implementation, an air filter (not shown) may be disposed at the air inlet 212 of the air inlet duct 21 or the air inlet 141 of the rack housing 14 for removing dust and impurities from the air flow entering the air-cooled heat dissipation channel.

When the

elements

12 and 13 of the electrical and physical equipment, such as the

elements

12 and 13 which need to actively dissipate heat, are mounted on the rotating disk 11, as shown in fig. 1, one part is located in the first annular channel 22, and the other part is located in the second annular channel 23. Thus, in the first annular passage 22 corresponding to the second region B, the elements requiring active heat dissipation are located in the deep part of the cold air, and the cooling manner of the air bath improves the heat exchange efficiency. In addition, the air flow enters the second annular channel 23 corresponding to the third area C from the first annular channel 22 corresponding to the second area B through the

elements

12 and 13 needing active heat dissipation, and heat exchange is carried out at the same time, so that the heat exchange efficiency is further improved. After that, the hot air finally exits from the hot air outlet 231 at the top of the second annular channel 23 after heat exchange in the second annular channel 23 corresponding to the third region C.

Furthermore, the embodiment of the utility model provides an in CT machine forced air cooling system can include: the above-mentioned CT machine air-cooling heat dissipation channel, at least one fan 24 disposed at each airflow suction port 221 of the CT machine air-cooling heat dissipation channel, and the rotating disk 11 of the CT machine and the electrical and physical devices mounted on the rotating disk 11 and provided with ventilation slits and/or ventilation apertures, such as the

components

12, 13 and the like, which need active heat dissipation.

The embodiment of the utility model provides an in CT machine can include foretell CT machine forced air cooling system.

The embodiment of the utility model provides an in provide a CT machine, include: the cooling system of the CT machine of any of the above embodiments.

It can be seen from the above-mentioned scheme that, the embodiment of the present invention divides the internal space of the CT frame component into three independent regions: the device comprises a first area, a second area and a third area, wherein elements which do not need active heat dissipation are positioned in the first area, and a main body of the elements which are arranged on a turntable and need active heat dissipation is positioned in the third area; the interface between the second and third regions is the plane of the turntable, after which the heat exchange and/or the air flow inside the housing parts can be made less influential on the components in the first region, in particular the drive belt and the slip ring, by providing an air inlet duct for introducing the air flow in the first region, independently of the elements which do not need active heat dissipation. Therefore, the air cooling process does not influence the components irrelevant to cooling. In addition, the second area and the third area are respectively sealed into a first annular channel and a second annular channel by taking the turntable as a part of sealing piece, at least one fan is arranged at the interface between the air inlet pipeline and the first annular channel, the airflow introduced through the air inlet pipeline can be sucked into the first annular channel and fills the first annular channel, gas with set pressure is formed in the first annular channel, and then the gas with the set pressure can enter the second annular channel through a ventilation gap and/or a ventilation pore which are arranged between the first annular channel and the second annular channel, so that the heat exchange is carried out on the element needing active heat dissipation; the hot air after heat exchange is discharged out of the CT frame component from the hot air outlet. Therefore, faster air circulation is realized without increasing the number of fans or increasing the rotating speed of the fans, the cooling effect is improved, and the noise is reduced.

Furthermore, by providing a separate peripheral closure plate for the first annular channel, the design of the housing enclosure can be simplified, reducing the complexity of the housing enclosure. Of course, the use of a portion of the rack enclosure as a peripheral closure panel can reduce the use of raw materials. Different implementation modes can improve the flexibility of the technical scheme.

In addition, the element which needs active heat dissipation is provided with the ventilation gaps and/or the ventilation holes, so that the air flow in the first annular channel can flow through the ventilation gaps and/or the ventilation holes in the element which needs active heat dissipation to enter the second annular channel and simultaneously cool the element which needs active heat dissipation, and the heat exchange efficiency is improved.

In addition, by arranging a part of the elements which are installed on the rotating disc and need active heat dissipation in the first annular channel and the other part of the elements which are installed on the rotating disc in the second annular channel, the part which is arranged in the first annular channel can be arranged in the depth of cold air, and the cooling mode of the air bath improves the heat exchange efficiency.

The above description is only for the preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

The air-cooled heat dissipation channel of the CT machine comprises a CT rack component (1), wherein the CT rack component (1) comprises a turntable (11); characterized in that the interior space of the CT gantry part (1) is divided axially into three separate regions: the turntable comprises a first area (A), a second area (B) and a third area (C), wherein the interface of the second area (B) and the third area (C) is a plane where the turntable (11) is located; wherein elements not requiring active heat dissipation are located in the first region (A), and the bodies of the elements (12, 13) requiring active heat dissipation, which are mounted on the turntable (11), are located in the third region (C); the air-cooled heat dissipation channel includes:

at least one closed air inlet duct (21) arranged in the first area (A), wherein the air inlet duct (21) is independent from the element without active heat dissipation and is provided with an air flow inlet (211) and an air flow outlet (212); the air flow inlet (211) is communicated with an air inlet (141) arranged on the first area side rack shell (14); and

a first annular channel (22) and a second annular channel (23) which are formed by respectively sealing the second area (B) and the third area (C) by using the rotary disc (11) as a part of sealing parts; an airflow suction inlet (221) communicated with the airflow outlet (212) is formed in the first annular channel (22) at a position corresponding to the airflow outlet (212) of the air inlet pipeline (21); -said first annular channel (22) and said second annular channel (23) having a vent slit and/or a vent aperture (222) therebetween; the top of the second annular channel (23) is provided with a hot gas outlet (231);

at least one fan (24) is arranged at the air flow suction inlet (221) and used for sucking the air flow introduced through the air inlet pipeline (21) into the first annular channel (22) and filling the first annular channel (22), and air with set pressure is formed in the first annular channel (22); the gas with set pressure enters the second annular channel (23) through the ventilation gaps and/or ventilation pores (222) between the first annular channel (22) and the second annular channel (23) to exchange heat with the elements (12, 13) needing active heat dissipation; the hot air after heat exchange is discharged out of the CT frame component (1) from the hot air outlet (231).
2. The CT-machine air-cooled heat sink channel according to claim 1, wherein the CT-gantry part (1) comprises a tilt-stand (16);

the first annular channel (22) and the second annular channel (23) are formed by a first partition plate (223), a second partition plate (224) and a peripheral closing plate (225) which are matched with the rotary table (11) and the frame shell (14);

wherein the first partition (223) is arranged at the interface of the first area (A) and the second area (B), an inner edge (2231) of the first partition (223) being mountable on the tilting bracket (16); the first partition plate (223) is provided with the airflow suction inlet (221);

said second partition (224) being disposed at the interface of said second zone (B) and said third zone (C), the inner edge (2241) of said second partition (224) having a profile matching the outer edge of said turntable (11);

the peripheral closing plate (225) is used for connecting one sides, close to the rack shell (14), of the first partition plate (223) and the second partition plate (224), and forms a U-shaped cavity with two unequal vertical edges in cross section together with the first partition plate (223) and the second partition plate (224), and the installed U-shaped cavity and the rotary disc (11) form a first annular channel (22); the peripheral closing plate (225) of the first annular channel (22) is attached to a peripheral rack housing (14) or forms a part of the rack housing (14);

after the second partition plate (224), the rotary table (11) and the rack shell (14) on the third area side are installed, the second annular channel (23) is defined by the second partition plate, the rotary table (11) and the rack shell (14) on the third area side, and the hot air outlet (231) is formed in the top of the rack shell (14) on the third area side.
3. The CT-machine air-cooled heat dissipation channel according to claim 1, wherein the CT-rack component (1) includes an inclined bracket (16);

the first annular channel (22) and the second annular channel (23) are formed by a first partition plate (223) and a second partition plate (224) which are matched with the rotary disc (11) and the frame shell (14);

wherein the first partition (223) is disposed at the interface of the first area (A) and the second area (B), and the outer edge of the first partition (223) has a shape matching with the rack housing (14), and the inner edge of the first partition (223) can be mounted on the inclined bracket (16); the first clapboard (223) is provided with the airflow suction inlet (221);

the second partition plate (224) is arranged on the interface of the second area (B) and the third area (C), the outer edge of the second partition plate (224) has a shape matched with the outer edge of the rack shell (14), and the inner edge of the second partition plate (224) has a shape matched with the outer edge of the rotating disc (11);

the first partition plate (223), the second partition plate (224), the rotary disc (11) and the peripheral frame shell (14) enclose the first annular channel (22) after installation; after the installation, the second partition plate (224), the rotary disc (11) and the rack shell (14) on the third area side jointly enclose the second annular channel (23), and the hot air outlet (231) is formed in the top of the rack shell (14) on the third area side.
4. The air-cooled heat dissipation duct for CT machine according to claim 1, characterized in that the number of the air inlet ducts (21) is two, and the two air inlet ducts are respectively located at two ends of a diagonal line of the CT frame part (1) passing through the center of the frame hole (15).
5. The CT machine air-cooling heat dissipation channel as claimed in claim 4, wherein the air inlet duct (21) is an air inlet duct with a trapezoidal cross section and a large airflow inlet (211) and a small airflow outlet (212).
6. The CT machine air-cooled heat dissipation channel of any of claims 1 to 5, wherein the ventilation gap and/or ventilation aperture (222) between the first annular channel (22) and the second annular channel (23) comprises: the rotary table (11) is provided with ventilation gaps and/or ventilation holes, and the rotary table (11) is provided with ventilation gaps and/or ventilation holes on the electrical and physical equipment.
7. The CT machine air-cooled heat dissipation channel of claim 6, wherein one part of the electrical and physical equipment mounted on the turntable (11) is located in the first annular channel (22), and the other part is located in the second annular channel (23).
8. The CT machine air-cooled heat dissipation channel of any one of claims 1 to 5,

an air filter is arranged at the air flow inlet (211) or the air inlet (141) and used for removing dust and impurities in the air flow entering the air-cooled heat dissipation channel.
CT machine forced air cooling system, its characterized in that includes:

a turntable (11);

an electro-physical device provided with ventilation slits and/or ventilation apertures mounted on said carousel (11);

the CT machine air-cooled heat dissipation channel of any one of claims 1 to 8; and

and the at least one fan is arranged at an airflow suction inlet (221) of the air-cooling heat dissipation channel of the CT machine.
A CT machine, comprising: the CT machine air-cooled heat dissipation system of claim 9.