Heat dissipation structure used for CT bulb tube anode rotor

Abstract

The utility model discloses a heat dissipation structure for a CT bulb tube anode rotor, which belongs to the technical field of heat dissipation of the CT bulb tube anode rotor and comprises a target disc, a connecting block is arranged on the outer wall of the target disc, a bearing rotor is arranged at the other end of the connecting block, a bearing stator is arranged on the inner wall of the bearing rotor, and the bearing stator is arranged on the outer wall of the target disc. The outer wall of one end of the bearing rotor is provided with a heat dissipation annular groove, the heat dissipation annular groove is in an annular groove shape, the grooving angle of the heat dissipation annular groove is the angle of a connecting line of grooves at the highest point of the target disc, and the number of the grooves of the heat dissipation annular groove is evenly distributed on the outer wall of the bearing rotor. According to the utility model, through the arrangement of the heat dissipation ring groove, the heat dissipation structure can effectively perform heat dissipation, so that the heat dissipation structure does not need to be sleeved with a thin-wall sleeve for heat insulation, the performance problem of the thin-wall sleeve does not need to be considered, the usability of the whole device is greatly improved, and the use effect is good.

Description

TECHNICAL FIELD

[0001] The utility model belongs to CT ball tube anode rotor heat dissipation technical field especially relates to a kind of heat dissipation structure for CT ball tube anode rotor. BACKGROUND

[0002] In modern diagnostic medicine, CT whole machine is used as common diagnostic equipment, and is used in various hospitals, and its working principle is that X-ray generated by CT ball tube in CT whole machine is accepted by detector in whole machine, and finally completes whole lesion area imaging to assist doctor to diagnose in the way of computer imaging.X-ray source used in CT whole machine is high heat capacity CT ball tube, with more and more strict protection to patient, CT ball tube develops towards short exposure time, high power demand, high heat dissipation rate, and its main working principle is that filament emits electron by heating, electron is accelerated between cathode and anode by voltage difference, and finally bombards target disc surface at a very high speed, wherein target disc surface generates stable X-ray by selecting specific material, and the whole working process is carried out in vacuum, so CT ball tube also belongs to vacuum device.Electron bombarding target disc surface emitted by cathode in ball tube will bring a lot of heat, in order to prevent target surface material from being melted by concentrated heat, target surface needs to be rotated, and heat is uniformly distributed on target disc surface, heat is transferred outward in the form of heat conduction and heat radiation, and finally all components in ball tube work at the limit temperature allowed by material, therefore, heat control generated in the working process of CT ball tube is one of key factors for working life of whole ball tube.

[0003] In order to overcome huge heat storage of target disc through heat transfer mode to rotor end, thin-walled sleeve is generally used to connect rotor and target disc, under the condition of meeting strength requirement, thinner thin-walled sleeve is used to increase thermal resistance, thin-walled sleeve is rotated with rotor, in actual working process, target disc conducts heat to thin-walled sleeve through heat radiation, and thin-walled sleeve is deformed by heat, so thin-walled sleeve needs to have high structural strength, pure nickel, stainless steel and other materials are typically used for stamping and shaping, and because thin-walled structure is prone to structural deformation during installation and use, product imbalance increases when rotating at high speed, which affects whole tube performance, so the performance of thin-walled sleeve needs to be considered constantly, and use effect is poor. UTILITY MODEL CONTENTS

[0004] The utility model aims at: in order to solve the problem that thin-walled structure is prone to structural deformation during installation and use, product imbalance increases when rotating at high speed, which affects whole tube performance, so the performance of thin-walled sleeve needs to be considered constantly, and use effect is poor, and a kind of heat dissipation structure for CT ball tube anode rotor is provided.

[0005] In order to achieve the above object, the utility model discloses the following technical scheme: a heat dissipation structure for CT tube anode rotor, including target disc, the outer wall of target disc is provided with connecting block, the other end of connecting block is provided with bearing rotor, the inner wall of bearing rotor is provided with bearing stator.

[0006] As further description of the above technical scheme:

[0007] The outer wall of one end of the bearing rotor is provided with a heat dissipation ring groove.

[0008] As further description of the above technical scheme:

[0009] The shape of the heat dissipation ring groove is annular groove.

[0010] As further description of the above technical scheme:

[0011] The slotting angle of the heat dissipation ring groove is that the slotting is at the highest point connection angle of the target disc.

[0012] As further description of the above technical scheme:

[0013] The number of the heat dissipation ring groove is evenly distributed on the outer wall of the bearing rotor, and the number of the heat dissipation ring groove is six groups.

[0014] As further description of the above technical scheme:

[0015] The depth of the heat dissipation ring groove is two-thirds of the thickness of the bearing rotor.

[0016] As described above, since the above technical scheme is adopted, the utility model has the beneficial effects that:

[0017] In the utility model, the heat dissipation ring groove is arranged, the surface of the bearing rotor is treated by the annular groove or the punching, the heat dissipation area of the surface of the bearing rotor is increased, the heat radiation coefficient is increased by the black oxidation treatment of the outer wall of the tail end of the bearing rotor and the black oxidation treatment of the slant surface of the heat dissipation ring groove, the rotor working temperature can be below 500 DEG C without the thin-walled sleeve, the working temperature condition below the saturated steam pressure of the bearing rotor material can be met, the annular groove and the punching shape can be redesigned to achieve the heat dissipation effect similar to the thin-walled sleeve structure, the heat dissipation structure can be effectively heat-dissipated by the design, so that the thin-walled sleeve is not needed for heat insulation, the performance problem of the thin-walled sleeve is not needed to be considered, the use of the whole device is greatly improved, and the use effect is good. ACCURACY OF DRAWINGS

[0018] Fig. 1 It is a plane structure schematic view of a heat dissipation structure for CT tube anode rotor.

[0019] Fig. 2 It is a kind of CT ball tube anode rotor uses the bearing rotor in heat dissipation structure and the schematic diagram of three-dimensional structure.

[0020] Fig. 3 It is a kind of CT ball tube anode rotor uses the bearing rotor in heat dissipation structure and the schematic diagram of three-dimensional structure.

[0021] Legend:

[0022] 1, target disc;2, connecting block;3, bearing rotor;4, bearing stator;5, heat dissipation ring groove. Specific embodiments

[0023] The technical scheme in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the present application.

[0024] Please refer to Figs. 1-3 The utility model provides a technical scheme: a kind of heat dissipation structure for CT ball tube anode rotor, including target disc 1, connecting block 2 is provided on the outer wall of the target disc 1, the other end of the connecting block 2 is provided with bearing rotor 3, bearing stator 4 is provided on the inner wall of the bearing rotor 3;

[0025] The outer wall of one end of the bearing rotor 3 is provided with heat dissipation ring groove 5, the shape of the heat dissipation ring groove 5 is annular groove, the slotting angle of the heat dissipation ring groove 5 is that slotting is at the highest point connecting angle of target disc 1, the number of the heat dissipation ring groove 5 is evenly distributed on the outer wall of the bearing rotor 3, the number of the heat dissipation ring groove 5 is six groups, the depth of the heat dissipation ring groove 5 is two-thirds of the thickness of the bearing rotor 3;

[0026] Its specific implementation is: by treating the surface of bearing rotor 3 with annular groove or punching, the heat dissipation area of the surface of bearing rotor 3 is increased, and the heat radiation coefficient is increased by black oxidation treatment of the outer wall of the tail end of bearing rotor 3 and black oxidation treatment of the slanted surface of the slotting of heat dissipation ring groove 5, so that the rotor operating temperature can be below 500 degrees Celsius without thin-walled sleeve, the operating temperature below the saturated vapor pressure of the material of bearing rotor 3 can be met, and the heat dissipation effect can be achieved by redesigning the annular slotting and punching shape, similar to the thin-walled sleeve structure.

[0027] Working principle: the surface of the bearing rotor 3 is treated by annular groove or punching, the surface area of the bearing rotor 3 is increased, the black oxidation treatment is carried out on the outer wall of the tail end of the bearing rotor 3 and the slanted surface of the slotted groove 5, the radiation coefficient is increased, the working temperature of the rotor is below 500 DEG C without the thin-walled sleeve, the working temperature is below the saturated vapor pressure of the material of the bearing rotor 3, the annular slotted and punched shape can be redesigned to achieve the similar heat dissipation effect and increase the thin-walled sleeve structure.

[0028] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A heat dissipation structure for a CT tube anode rotor, comprising a target disc (1), characterized in that: The outer wall of the target disc (1) is provided with a connecting block (2), the other end of the connecting block (2) is provided with a bearing rotor (3), the inner wall of the bearing rotor (3) is provided with a bearing stator (4), the outer wall of one end of the bearing rotor (3) is provided with a heat dissipation ring groove (5), and the heat dissipation ring groove (5) is in the shape of an annular groove.

2. The heat dissipation structure for a CT tube anode rotor according to claim 1, wherein The slotting angle of the heat dissipation ring groove (5) is at the highest point of the target disc (1) connection angle.

3. The heat dissipation structure for a CT tube anode rotor according to claim 2, characterized in that, The number of the heat dissipation ring groove (5) is evenly distributed on the outer wall of the bearing rotor (3), and the number of the heat dissipation ring groove (5) is six groups.

4. The heat dissipation structure for a CT tube anode rotor according to claim 3, wherein The depth of the heat dissipation ring groove (5) is two-thirds of the thickness of the bearing rotor (3).

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