A CT device with cooling function

Abstract

The utility model discloses a CT device with a cooling function, including a CT machine and a cold air system; wherein the CT machine includes a front cover, an annular detector box, a rear cover, and an X-ray detector group; the front cover and the rear cover together form a closed space, and the annular detector box is located inside the closed space; the cold air system includes a first cold air duct, a second cold air duct, and a third cold air duct, and the first cold air duct and the second cold air duct introduce cold air into the third cold air duct; the third cold air duct is an annular air duct, connected to the second cold air duct, and the third cold air duct is arranged along the Z axis of the CT machine, fixedly mounted on the front cover, and coaxially arranged and connected with the annular detector box in the Z axis direction, and the annular detector box surrounds the periphery of the X-ray detector group to form a cooling space, and forms a detector air outlet. The utility model effectively solves the heat dissipation problem of the detector box of the CT machine and the rack cavity, and ensures the normal operation of the CT equipment.

Description

Technical Field

[0001] The utility model relates to a CT device with a cooling function, belonging to the technical field of medical equipment. Background Art

[0002] CT equipment consists of key components such as radiation sources and detectors, and its normal operation depends on a good heat dissipation system. During the CT scanning process, the radiation source generates a lot of heat, which not only causes the temperature in the CT gantry cavity and the detector cavity to rise, but also may cause the temperature of the detector crystal to rise. If the heat cannot be effectively dissipated, it may affect the performance of the electronic components of the CT equipment and even reduce the imaging quality. In severe cases, it may also cause the equipment to shut down. Therefore, the heat dissipation effect of CT equipment is crucial to ensure the quality of detection.

[0003] However, there are some deficiencies in the heat dissipation system of the existing CT equipment. Taking the Chinese utility model with the announcement number CN207821830U as an example, the utility model includes a detection and cooling device body, a temperature probe head connecting pipe is provided under the detection and cooling device body, a temperature probe head is provided on the temperature probe head connecting pipe, a fixing ring connecting frame is provided on both sides of the temperature probe head, a fixing ring is provided on the fixing ring connecting frame, an adhesive is provided on the fixing ring, a temperature probe head connecting pipe connecting port is provided on the right side of the temperature probe head, a built-in power supply and a temperature sensing resistor fixing port are provided on the upper side of the temperature probe head, a temperature sensing resistor is provided on the lower side of the temperature sensing resistor fixing port, and a current conduction line is provided on the right side of the temperature sensing resistor. Although the device has a simple structure and is easy to install, its heat dissipation effect is not ideal. The main problem is that the air circulation in the detector cavity is not smooth, resulting in the inability to quickly discharge heat. This shows that although the device has some innovations in design, it still needs further improvement in actual application to improve the heat dissipation efficiency. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide a CT device with a cooling function.

[0005] In order to achieve the above technical objectives, the utility model adopts the following technical solutions:

[0006] A CT device with a cooling function, comprising a CT machine and a cooling air system.

[0007] The CT machine comprises a front cover, an annular detector box, a rear cover and an X-ray detector group; wherein the front cover and the rear cover together form a closed space, and the annular detector box is located inside the closed space;

[0008] The cold air system includes a first cold air duct, a second cold air duct, and a third cold air duct; wherein,

[0009] One end of the first cold air duct is connected to the air source, and the other end is connected to the second cold air duct, for drawing cold air from the air source;

[0010] One end of the second cold air duct is connected to the first cold air duct, and the other end is connected to the third cold air duct;

[0011] The third cold air duct is an annular air duct, connected to the second cold air duct, and the third cold air duct is arranged along the Z axis of the CT machine, fixedly mounted on the front cover, and coaxially arranged and connected with the annular detector box in the Z axis direction;

[0012] The annular detector box surrounds the outer periphery of the X-ray detector group to form a cooling space and a detector air outlet.

[0013] Preferably, the third cold air duct is provided with a plurality of air outlet pipes, and the air outlet pipes are arranged at equal intervals on a side of the annular third cold air duct away from the front cover shell.

[0014] Preferably, a plurality of detector air inlets are provided on the annular front side plate of the annular detector box at equal intervals.

[0015] Preferably, the number of the air outlet pipes is greater than or equal to the number of the detector air inlets.

[0016] Preferably, the detector air outlet is arranged on the rear side plate of the annular detector box.

[0017] Preferably, the annular detector housing is non-rotatably fixed between the front cover and the rear cover; or,

[0018] The X-ray detector group and the annular detector box are rotatably installed between the front cover and the rear cover.

[0019] Preferably, the detector air outlet is connected to the exhaust outlet of the CT machine.

[0020] Compared with the prior art, the utility model introduces cold air directly into the detector box through the shortest air path, performs sufficient energy exchange with the X-ray detector group, and effectively improves the cooling effect. At the same time, the hot air generated by the heat exchange is confined inside the detector box and quickly discharged to the outside of the CT machine through the air outlet, avoiding the retention of hot air in other areas inside the CT machine, thereby achieving sufficient cooling of the X-ray detector group without increasing the temperature of other areas inside the CT machine. These measures not only effectively solve the cooling problem of the detector box and the rack cavity of the CT machine, ensuring the normal operation of the CT equipment, but also facilitate clinical use due to its simple structure and convenient operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a front view of the overall structure of the CT device provided by the utility model;

[0022] Figure 2 for Figure 1 The overall structural side view of the CT device shown;

[0023] Figure 3 for Figure 1 The CT device shown is a rear view of the internal structure after some parts are removed;

[0024] Figure 4 for Figure 1 The CT device shown is a side view of the internal structure after some parts are removed;

[0025] Figure 5 for Figure 2 The internal structure diagram of the CT device shown is after some components are removed;

[0026] Figure 6 for Figure 3 A partial enlarged schematic diagram of a CT device shown;

[0027] Figure 7 This is a schematic diagram of the front side plate structure of the annular detector box in the CT device;

[0028] Figure 8 This is a schematic diagram of the rear side plate structure of the annular detector box in this CT equipment. DETAILED DESCRIPTION

[0029] The technical content of the present utility model is described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] like Figure 1 and Figure 2 As shown, the utility model discloses a CT device with a cooling function, including a CT machine 100 and a cooling air system 200. The CT machine 100 includes a front cover 10, an annular detector box 20, a rear cover 30 and an X-ray detector group 40. The front cover 10 and the rear cover 30 together form a closed space, and the annular detector box 20 is located inside the closed space (refer to Figure 6 ).

[0031] like Figures 3 to 6As shown, the cold air system 200 includes a first cold air duct 1, a second cold air duct 2, a third cold air duct 3, an air outlet duct 4, and a cold air system sensor 5 that are interconnected. One end of the first cold air duct 1 is connected to the air source, and the other end is connected to the second cold air duct 2, for drawing cold air from the air source. One end of the second cold air duct 2 is connected to the first cold air duct 1, and the other end is connected to the third cold air duct 3. The third cold air duct 3 is an annular air duct, connected to the second cold air duct 2. The third cold air duct 3 is along the Z axis ( Figure 1 and Figure 3 The CT machine 100 is fixedly mounted on the front housing 10 of the CT machine 100.

[0032] A plurality of air outlet pipes 4 are arranged at equal intervals on a side of the annular third cold air duct 3 away from the front housing 10. The air outlet pipes 4 extend from the third cold air duct 3 toward the front side plate 20A of the annular detector housing 20, and correspond one-to-one with the detector air inlet 21 on the front side plate 20A (e.g. Figure 6 As shown), the cold air flowing out of the air outlet pipe 4 can pass through the air inlets 21 of each detector and directly enter the annular detector box 20, thereby realizing precise temperature control of the detector crystal.

[0033] It should be noted that the air outlet pipe here can be omitted. As an alternative, an opening (instead of the air outlet pipe 4) can be directly opened on the surface of the third cold air duct 3 on the side facing the annular detector box 20 to deliver the third cold air duct into the detector air inlet 21 of the annular detector box 20.

[0034] The cold air system sensor 5 is arranged on the inner wall of the annular detector box 20 , and can monitor the temperature inside the detector box 20 in real time to control the opening and closing of the cold air system 200 , thereby achieving temperature control inside the detector box 20 .

[0035] like Figures 5 to 7 As shown, the annular detector box 20 surrounds the X-ray detector group 40 and is arranged around the Z axis. In the Z axis direction, the annular detector box 20 is coaxial with the third cold air duct 3 and is arranged adjacent to each other front and back. If the CT machine is a static CT machine, the annular detector box 20 is fixed between the front cover 10 and the rear cover 30 in a non-rotatable manner; if the CT machine is a spiral scanning CT machine, the X-ray detector group 40 and the annular detector box 20 are rotatably installed (around the Z axis) between the front cover 10 and the rear cover 30. The annular detector box 20 rotates with the X-ray detector group 40, and the two are fixedly connected, so they are relatively stationary.

[0036] The annular detector housing 20 includes a front side plate 20A and a rear side plate 20B which are arranged opposite to each other, so as to form an annular closed cooling space together with the outer periphery (the surface away from the Z axis) of the X-ray detector group 40. A plurality of detector air inlets 21 are provided on the annular front side plate 20A at equal intervals. A detector air outlet 201 (such as Figure 8 As shown). An air duct is formed between the detector air inlet 21 and the detector air outlet 201 to allow cold air to enter the annular detector housing 20 from the detector air inlet 21, and cool the X-ray detector group 40 inside the annular detector housing 20, and then the hot air is discharged from the detector air outlet 201 to the outside of the annular detector housing 20. Finally, the hot air is discharged from the annular detector housing 20 to the outside of the CT machine 100 through the exhaust port 101 of the CT machine.

[0037] When the CT machine 100 is running, the X-ray detector group 40 in the detector box 20 generates heat, which increases the temperature in the detector box 20. The cold air system sensor 5 disposed inside the detector box 20 can monitor the internal temperature of the detector box 20. When the internal temperature reaches a predetermined value, the cold air system sensor 5 generates a signal to control the cold air system 200 to automatically start.

[0038] After the cold air system 200 is turned on, the cold air enters the annular third cold air duct 3 along the first cold air duct 1 and the second cold air duct 2. Since the third cold air duct 3 is an annular air duct and is fixed on the outer cover 10, and the second cold air duct 2 is also fixed on the outer cover 10, the two are relatively stationary. Regardless of whether the X-ray detector group 40 rotates, the cold air from the second cold air duct 2 can enter the third cold air duct 3.

[0039] Then, under the action of wind pressure, the cold air in the third cold air duct 3 flows out from each air outlet duct 4. When the detector housing 20 and the X-ray detector group 40 rotate around the Z axis, the third cold air duct 3 remains stationary. In this state, the detector air inlet 21 rotates around the Z axis relative to the air outlet duct 4. However, because the air outlet duct 4 and the detector air inlet 21 are both distributed around the Z axis, and the number of the air outlet ducts 4 is greater than or equal to the number of the detector air inlet 21, the cold air from the air outlet duct 4 can still enter the detector housing 20 through the detector air inlet 21.

[0040] The cold air entering the detector housing 20 through the detector air inlet 21 exchanges energy with the X-ray detector group 40 to reduce the temperature of the X-ray detector group 40. At this time, the temperature of the cold air rises, and the generated hot air flows out from the detector air outlet, enters the rack cavity of the CT machine, and is then discharged from the exhaust port on the rear cover 30 of the CT machine. In this process, the temperature of the detector crystal of the X-ray detector group 40 is reduced under the action of the cold air, and can be maintained in a stable working state, thereby ensuring the normal operation of the CT equipment.

[0041] In summary, the utility model designs an annular cold air channel 3 on the front cover 10 of the CT machine, and constructs a detector box 20 on the periphery of the X-ray detector group 40, so that the cold air directly enters the detector box 20 through the shortest path. Such a design enables the cold air to effectively exchange energy with the X-ray detector group 40, thereby achieving cooling. At the same time, since the hot air generated during the heat exchange process is confined in the detector box 20 and quickly discharged out of the CT machine through the air outlet, not only the X-ray detector group 40 is fully cooled, but also the temperature of other areas inside the CT machine is avoided, preventing potential damage to other components. This design effectively solves the heat dissipation problem of the detector box and the rack cavity of the CT machine, ensuring the normal operation of the CT equipment. In addition, the utility model has a simple structure, is easy to operate, and is convenient for use in a clinical environment.

[0042] The above is a detailed description of the CT device with cooling function provided by the utility model. For those skilled in the art, any obvious changes made to the utility model without departing from the essence of the utility model will constitute an infringement of the patent right of the present invention and will bear corresponding legal responsibilities.

Claims

1. A CT device with a cooling function, characterized in that Including CT machine and cooling system, The CT machine comprises a front cover, an annular detector box, a rear cover and an X-ray detector group; wherein the front cover and the rear cover together form a closed space, and the annular detector box is located inside the closed space; The cold air system includes a first cold air duct, a second cold air duct, and a third cold air duct; wherein, One end of the first cold air duct is connected to the air source, and the other end is connected to the second cold air duct, for drawing cold air from the air source; One end of the second cold air duct is connected to the first cold air duct, and the other end is connected to the third cold air duct; The third cold air duct is an annular air duct, connected to the second cold air duct, and the third cold air duct is arranged along the Z axis of the CT machine, fixedly mounted on the front cover, and coaxially arranged and connected with the annular detector box in the Z axis direction; The annular detector box surrounds the outer periphery of the X-ray detector group to form a cooling space and a detector air outlet.

2. The CT device according to claim 1, characterized in that: The third cold air duct is provided with a plurality of air outlet pipes, and the air outlet pipes are arranged at equal intervals on a side of the annular third cold air duct away from the front cover shell.

3. The CT device according to claim 2, characterized in that: A plurality of detector air inlets are arranged at equal intervals on the annular front side plate of the annular detector box.

4. The CT device according to claim 3, characterized in that: The number of the air outlet pipes is greater than or equal to the number of the air inlets of the detectors.

5. The CT device according to claim 3, characterized in that: The detector air outlet is arranged on the rear side plate of the annular detector box.

6. The CT device according to any one of claims 1 to 5, characterized in that: The annular detector housing is non-rotatably fixed between the front cover and the rear cover.

7. The CT device according to any one of claims 1 to 5, characterized in that: The X-ray detector group and the annular detector box are rotatably installed between the front cover and the rear cover.

8. The CT device according to claim 1, characterized in that It also includes a cold air system sensor, which is arranged inside the annular detector box.

9. The CT device according to claim 1, characterized in that: The detector air outlet is connected to the air outlet of the CT machine.

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