CN117017332B - Detector module and medical imaging equipment - Google Patents
Detector module and medical imaging equipment Download PDFInfo
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- CN117017332B CN117017332B CN202311299584.2A CN202311299584A CN117017332B CN 117017332 B CN117017332 B CN 117017332B CN 202311299584 A CN202311299584 A CN 202311299584A CN 117017332 B CN117017332 B CN 117017332B
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 230000004308 accommodation Effects 0.000 claims description 3
- 229910052790 beryllium Inorganic materials 0.000 claims description 3
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- 230000001737 promoting effect Effects 0.000 claims description 2
- 230000017525 heat dissipation Effects 0.000 abstract description 10
- 238000002591 computed tomography Methods 0.000 description 10
- 238000002595 magnetic resonance imaging Methods 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
- A61B6/44—Constructional features of apparatus for radiation diagnosis
- A61B6/4488—Means for cooling
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
- A61B6/02—Devices for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
- A61B6/03—Computerised tomographs
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
- A61B6/42—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment with arrangements for detecting radiation specially adapted for radiation diagnosis
Abstract
The application provides a detector module and medical imaging equipment. Each detector module of the detector modules includes: a guide rail member; a support member; the plurality of detectors, the detecting unit of the detector sits on supporting member, the communication member extends in the side of supporting member; the support member is supported on the guide rail member below the support member, the communication member extends adjacent to the support member to bring the AD converter close to a side surface of the support member, and a narrow space is defined between the guide rail member and the support member; the heat insulating member is arranged between the supporting member and the bracket member in a contact manner; the first heat conductive member is arranged on a side surface of the holder member and has a configuration conforming to a temperature gradient therein, and the plurality of AD converters are arranged in close proximity to or side by side adjacent to the first heat conductive member; the second heat conductive member is compressively disposed in the narrow space in close contact with the bracket member, the first heat conductive member and the rail member. The detector module has good heat balance and rapid directional heat dissipation, and is compact in structure.
Description
Technical Field
The present application relates to the field of medical devices, and in particular, to medical imaging devices.
Background
Modern medicine provides advanced medical equipment for checking the health condition of a human body, and medical imaging equipment is equipment capable of intuitively providing the health condition of the human body. The medical imaging device scans the human body by using rays to obtain scanning data of the human body part, and the scanning data are converted into images of the human body part through the data processing device, so that the health condition of the human body is intuitively observed. Medical imaging devices currently on the market include CT (Computed Tomography ), MRI (Magnetic Resonance Imaging, magnetic resonance imaging), PET (Positron Emision Tomograph, positron emission computed scanning), CT-MR, PET-CT, and PET-MR.
The CT equipment is widely used medical imaging equipment, the detector module is one of core devices in the existing CT equipment, and the performance of the detector module directly influences the performance of the whole machine. The detector module comprises a plurality of detector modules consisting of electronics, each detector module being either monolithic or comprising a plurality of detectors, typically comprising a collimator, a scintillator, an AD-converter (typically an ASIC chip). The scintillator is a key factor affecting the performance of the detector module. The scintillator has very high temperature requirements, and in practice, the optimum operating temperature of the scintillator is 36.5±0.5 ℃. Other electronic devices of the detector module can also influence the performance of the detector module, each electronic device is a heating unit, the heating power is about 5W, so that the heating power of the whole detector module is about 400W, and the heating power is discharged in time to prevent the performance of the detector module from being influenced. The room temperature between the hospital scanning parts is usually about 26 ℃, so that the scintillator of the detector module is heated and kept warm, and meanwhile, other electronic devices of the detector module are cooled. In addition, the presence of temperature gradients between the electronics in the detector module can affect the imaging of the detector.
The existing CT equipment is insufficient in heat conduction area of the detector module and low in heat conduction efficiency due to the structural size, the temperature is too high in the detector module, and the temperature gradient is present, so that the long-time scanning performance of the whole machine can be influenced. New improvements are proposed to address the above problems.
Disclosure of Invention
An object of the present application is to provide a detector module, which has good heat dissipation capability and heat balance, and can improve the overall working performance of medical imaging equipment.
To achieve the above object, in a first aspect of the present application, there is provided a detector module including a plurality of detector modules, each detector module including: a rail member for supporting the detector module; a support member disposed on the rail member; a plurality of detectors each including a detection unit, a communication member, and an AD converter communicatively connected to the detector unit through the communication member, the detection unit being seated on an upper surface of the support member, the communication member extending at a side of the support member; a bracket member disposed below the support member and supported on the rail member through extensions on both sides, the rail member defining a narrow space between an inner side surface thereof and a side end surface thereof; a heat insulating member contactingly arranged between the support member and the bracket member; a first heat conductive member disposed on a side surface of the holder member and having a configuration conforming to a temperature gradient therein, the plurality of AD converters being disposed in close proximity to or side by side with the first heat conductive member; and a second heat conductive member compressively disposed in the narrow space in close contact with the bracket member, the first heat conductive member, and the rail member.
Optionally, the second heat conducting member includes a heat collecting plate, a heat dissipating plate, and a plurality of heat conducting elastic pieces connected between the heat collecting plate and the heat dissipating plate, the heat collecting plate and the heat dissipating plate respectively abutting against the bracket member and the rail member and adhering to inner side surfaces of the first heat conducting member and the rail member.
Optionally, the heat collecting plate and the heat dissipating plate are parallel to each other, and the heat conducting elastic sheet is welded or adhered between the heat collecting plate and the heat dissipating plate and is configured to: z-shaped straight elastic pieces which are arranged in parallel and inclined relative to the heat collecting plate and the heat radiating plate and are connected with the heat collecting plate and the heat radiating plate through connecting parts at two ends; or the S-shaped bending elastic sheet or the arc-shaped elastic sheet is connected between the heat collecting plate and the heat radiating plate in the same direction through the connecting parts at the two ends.
Alternatively, the heat collecting plate is removably fixed to the bracket member by a fastener, and the heat radiating plate abuts against the rail member by the elastic force of the heat conductive elastic sheet, or the heat collecting plate and the heat radiating plate are compressed between the bracket member and the rail member by the elastic force of the heat conductive elastic sheet.
Optionally, the heat collecting plate is made of red copper, and the heat conducting elastic sheet is made of beryllium bronze; and the support member, the bracket member, and the rail member are made of a heat conductive material, and the heat insulating member is made of a heat insulating material configured as a partition or a coating covering opposite surfaces of the support member and the bracket member.
Optionally, the first heat conductive member includes a strip portion of a middle portion in a longitudinal direction thereof, an extension portion extending from the strip portion to both ends and having an area increased in proportion thereto, and a fin formed at a distal end of the extension portion, the plurality of AD converters passing through the strip portion and the extension portion in the longitudinal direction of the first heat conductive member, the fin being attached to the second heat conductive member; and, the bracket member has a through concave accommodation portion conforming to the first heat conductive member in its configuration in the longitudinal direction.
Optionally, an inclined portion for promoting heat transfer is provided between the expansion portion of the first heat conductive member and the fins.
Optionally, the communication member extends from the detection unit to a side of the bracket member such that the detector has an L-shaped configuration and the AD converter is proximate to the side of the bracket member, wherein the communication member includes a first vertical portion connected to the detection unit, a second vertical portion connected to the AD converter, and an inclined portion connected between the first vertical portion and the second vertical portion, and the bracket member has a first vertical portion, an inclined portion, and a second vertical portion in a vertical direction thereof conforming to a structure of the communication member.
Optionally, the rail member includes a first rail and a second rail disposed opposite each other, each of the first rail and the second rail having a base portion, a stopper portion extending upward from the base portion, and a stepped portion formed at an interface position of the base portion and the stopper portion, the extension portion of the bracket member being supported on the stepped portions of the first rail and the second rail, the base portion of the rail member having a cooling passage communicating with a water cooling system, an oil cooling system, or an air cooling system.
In a second aspect of the present application, a medical imaging device is provided, comprising a detector module according to the first aspect, the medical imaging device being a CT device, an MRI device, a PET-CT device, a CT-MR or a PET-MR device.
The technical scheme provided by the embodiment of the application can comprise the following beneficial effects: the arrangement of the detector relative to the support member and the bracket member is more compact and safer; the heat insulation component prevents heat of the AD converter from being conducted to the direction of the detection unit, and is beneficial to controlling the temperature of the detection unit; the structure of the first heat conduction member can prevent the occurrence of temperature gradient between the detectors, so that the influence of temperature on the performance of the detector module is minimized; the second heat conduction piece increases effectual heat conduction area, improves the heat conduction efficiency to AD converter, can in time remove the heat that the detector module produced.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the application and to provide a further understanding of the application with regard to the other features, objects and advantages of the application. The drawings of the illustrative embodiments of the present application and their descriptions are for the purpose of illustrating the present application and are not to be construed as unduly limiting the present application. In the drawings:
FIG. 1 is a perspective view of a detector module according to an embodiment of the present application;
FIG. 2 is an exploded perspective view of a detector module according to an embodiment of the present application;
FIG. 3 is a perspective view of a detector module according to an embodiment of the present application;
FIG. 4 is a perspective view of a rail member of a detector module according to an embodiment of the present application;
FIG. 5 is a perspective view of a bracket member of a detector module according to an embodiment of the present application;
FIG. 6 is a front view of a first thermally conductive member of a detector module according to an embodiment of the present application; and
fig. 7 is a perspective view of a second thermally conductive member of the detector module according to an embodiment of the present application.
Detailed Description
In order to make the present application solution better understood by those skilled in the art, the following description will be made in detail and with reference to the accompanying drawings in the embodiments of the present application, it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, shall fall within the scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe the embodiments of the present application described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In the present application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are used primarily to better describe the present application and its embodiments and are not intended to limit the indicated device, element or component to a particular orientation or to be constructed and operated in a particular orientation.
Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.
Furthermore, the terms "mounted," "configured," "provided," "connected," "coupled," and "sleeved" are to be construed broadly. For example, "connected" may be in a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.
Example embodiments according to the present application are described below with reference to fig. 1 to 7.
The application aims to solve the problems of heat dissipation and heat balance of medical imaging equipment, and provides the detector module with good heat balance by optimizing the component structure and heat dissipation arrangement of the detector module and especially the heat condition of key components, thereby improving the heat condition inside the equipment and improving the working performance of the equipment.
The embodiments according to the present application will be described herein by way of example only with respect to CT devices, and it should be appreciated that the description is equally applicable to other similar medical imaging devices.
Fig. 1 shows one of a plurality of detector modules included in a detector module according to an embodiment of the present application, and fig. 2 shows an exploded schematic view of the detector module. The detector module includes a rail member 1, a support member 2, a plurality of detectors 3 arranged side by side, a heat insulating member 4, a bracket member 5, a first heat conductive member 6, and a second heat conductive member 7.
The rail member 1 is for supporting a detector module, and is typically mounted on a gantry housing (not shown) of the CT apparatus. The support member 2 is for carrying the gravitational force of the detectors 3 and the centrifugal force during operation, and may be arranged on the rail member 1 directly or through an intermediate member to mount the detectors 3 on the rail member 1, a plurality of detectors 3 being shown side by side on the beam-type support member 2 in fig. 1. The detector 3 is arranged to receive radiation from a radiator (not shown), such as a bulb, to provide projection images and data. The support member 5 is used to arrange heat conducting means to dissipate heat generated by the hotter parts of the detector 3 to the surrounding environment or cooling system, and the support member 5 itself can conduct heat. The insulating member 4 serves to thermally isolate the support member 2 from the bracket member 5, preventing heat generated by hotter components of the detector 3 from being conducted through the bracket member 5 to the support member 2 and cooler components of the detector 3. The first heat conducting member 6 is a heat conducting means arranged in the holder member 5 for collecting heat generated by the hotter components of the detector 3. The second heat conducting member 7 is used for conducting the heat collected by the first heat conducting member 6 to the rail member 1, and radiating the heat through a heat radiating structure on the rail member 1.
Fig. 3 shows a schematic perspective view of the detector 3. Each detector 3 includes a detection unit 31, a communication member 32, and an AD converter 33. The detection unit 31 is communicatively connected to the AD converter 33 via the communication means 32, and the detection unit 31 receives radiation from the radiator of the CT apparatus, converts it into an electrical signal, and transmits it to the AD converter 33 via the communication means 32 to obtain scan data. The detection unit 31 of the detector 3 is seated on the upper surface of the support member 2, and the communication member 32 extends at the side of the support member 2. The communication member 32 of fig. 3 is a sheet-type structure extending generally orthogonally from the detection unit 31 so that the detector 3 has an L-shaped configuration which facilitates stable seating of the detector 3 on the support member while making the structure of the detector module more compact. Advantageously, in order to stably hold the detection unit 31, a longitudinal recess 21 is formed on the upper surface of the support member 2 to accommodate the detection unit 31.
With continued reference to fig. 1 and 2, the bracket member 5 is disposed below the support member 2 with extensions 51 (see fig. 5) on both sides, the bracket member 5 is supported on the rail member 1 by the extensions 51, and the communication member 31 of the detector 3 extends so that the AD converter 33 is brought close toward the side of the bracket member 5. The AD converter 33 is the primary heat generating component of the detector 3, and is arranged close to the support member 5 such that the heat generated by the AD converter 33 can be rapidly transferred (radiated or contact heat transferred) to the first heat conducting member 6 on the support member 5. Between the inner side surfaces 11d, 12d of the rail element 1 and the side surface 56 of the carrier element 5, a narrow space 8 is provided, which narrow space 8 is used for the arrangement of additional heat dissipation means.
The heat insulating member 4 is arranged in contact between the support member 2 and the bracket member 5. Although the separate arrangement of the support member 2 from the holder member 5 may partly prevent heat conduction from the AD converter 33 (hotter component) to the detection unit 31 (colder component), the additional heat insulating member 4 may provide a better heat insulating effect, blocking convective heat transfer, conductive heat transfer (contact heat transfer) and radiant heat transfer of heat.
The first heat conductive member 6 is disposed on the side of the holder member 5, and the plurality of AD converters 33 are attached to or adjacent to the first heat conductive member 6, whereby the heat generated by the AD converters 33 can be rapidly transferred to the first heat conductive member 6 in a radiation heat transfer or a conduction heat transfer (contact heat transfer) manner. The plurality of AD converters 33 are arranged side by side with respect to the first heat conductive member 6, and the first heat conductive member 6 will have a temperature gradient after collecting heat of the AD converters 33, and for this reason, the first heat conductive member 6 is configured to have a configuration conforming to the temperature therein so that there is no temperature gradient between the plurality of AD converters 33. The second heat conductive member 7 is arranged in the above-mentioned narrow space 8 in a pressed manner as an additional heat radiating means and is in close contact with the bracket member 5, the first heat conductive member 6 and the rail member 1 to ensure reliable heat transfer. The additional second heat-conducting element 7 increases the heat-conducting area and provides a fast heat-conducting channel which rapidly removes heat by virtue of its excellent heat-conducting properties and achieves directional heat transfer.
The detector module of the present application improves the configuration of the detector 3 and the heat dissipation arrangement of the detector module, providing various advantages: the structure and arrangement of the detector 3 make the arrangement of the detector module more compact; the attachment of the AD converter 33 to or adjacent to the side of the bracket member helps to reduce the risk of damage to the AD converter 33; the heat insulating member 4 thermally isolates the detection unit 31 (colder component) of the detector 3 from the AD converter 33 (hotter component) so that the heat of the AD converter 33 is rapidly dissipated through the first heat conductive member 6 and is not conducted to the region of the detection unit 31, contributing to control of the temperature of the detection unit 31; the configuration of the first heat conductive member 6 can prevent occurrence of a temperature gradient between the plurality of AD converters 33; the second heat conductive member 7 provides a fast heat conductive path to rapidly transfer heat generated from the AD converter 33 to the rail member 1 to be emitted through other cooling systems. Because the detector module is very sensitive to the working temperature, different components require corresponding heat preservation and heat dissipation treatment and temperature control schemes, and therefore the temperature control of the sub-areas, the directional heat dissipation and the optimized heat balance among the detectors can obviously improve the working performance of the detector module and the whole equipment.
Other aspects of the present application are described with continued reference to the accompanying drawings.
Fig. 4 shows a schematic view of a rail member 1 according to the present application. The rail member 1 includes a first rail 11 and a second rail 12 configured in the same manner, which are arranged opposite to each other on both sides of the support member 2. The first rail 11 and the second rail 12 each have a base 11a and 12a, stopper portions 11b and 12b extending upward from the base 11a and 12a, and stepped portions 11c and 12c formed at the boundary positions of the base portions 11a and 12a and the stopper portions 11b and 12b, and the extension portion 51 of the holder member 5 is supported on the stepped portions 11c and 12c on both sides. The base portions 11a and 12a have cooling passages 11e, 12e thereon, and the rail members 11 and 12 communicate with other water cooling systems, oil cooling systems, or air cooling systems via the cooling passages 11e, 12e to rapidly dissipate heat conducted to the rail member 1 through the second heat conductive member 7. In the example of fig. 1, the height of the stop portion 12b of the second rail 12 is greater than the height of the stop portion 11b of the first rail 11 to accommodate the structure of the rack housing.
With continued reference to fig. 3, the specific structure of the detector 3 will be described. The detection unit 31 of the detector 3 may include a collimator 31a, a scintillator 31b, and a photoelectric device 31c, the collimator 31a preventing the received rays from scattering, causing the rays to be condensed on the collimator 31a, the scintillator 31b converting the rays from the collimator 31a into visible light, the photoelectric device 31c may be a photodiode converting the received visible light into an electrical signal to be transmitted to the communication member 32, and the electrical signal to be transmitted to the AD converter 33 to be converted into projection data. As mentioned above, the communication member 32 has a sheet-like structure including the first vertical portion 32a connected to the detection unit 31, the second vertical portion 32c connected to the AD converter 33, and the inclined portion 32b connected between the first vertical portion 32a and the second vertical portion 32 c. This structure helps the AD converter 33 of the detector 3 to be closer to the first heat conductive member 6 or to be attached to the first heat conductive member 6, further inside with respect to the side surface of the holder member 5, to provide superior heat transfer and structural protection.
Fig. 5 shows a perspective view of the bracket member 5. The bracket member 5 serves to hold the first heat conductive member 6, which itself can conduct heat. The bracket member 5 is supported on the rail member 1 by the above-mentioned extending portions 51 on both sides, and further has a through concave receiving portion 52 in the longitudinal direction, the receiving portion 52 being configured to conform to the first heat conductive member 6 to receive the first heat conductive member 6. The concave structure of the accommodating portion 52 allows the AD converter 33 of the detector 3 to be positioned inside with respect to the side surface of the holder member 5, proximate to the first heat conductive member 6 disposed in the accommodating portion 52. Such a configuration on the one hand helps the heat of the AD converter 33 to be quickly transferred to the first heat conductive member 6, and on the other hand provides protection for the AD converter 33 from damage caused by touching by other components or by a worker, so that no additional protection structure may be arranged. Advantageously, the bracket member 5 has a first vertical portion 53, a slope portion 54, and a second vertical portion 55 in the vertical direction conforming to the structure of the communication member 32 of the probe 3 so that the communication member 32 as a whole is brought close toward the bracket member 5. The second vertical portion 55 constitutes an inner surface of the concave accommodation portion 52. A narrow space 8 is defined between the side end surface 56 (only one side end surface is shown in fig. 4) of the holder member 5 and the inner side surfaces 11d, 12d of the rail member 1.
Fig. 6 shows a schematic view of the first heat conductive member 6. The first heat conducting member 6 has a plate-type structure, and the heat conducting area gradually increases from the middle to the two ends according to the temperature gradient in the first heat conducting member 6. Specifically, the first heat conductive member 6 includes a strip portion 61 in the middle, an expanded portion 62 extending from the strip portion 61 to both ends and increasing in area in proportion to each other, and a fin 63 formed at the end of the expanded portion 62 in the longitudinal direction thereof. The strip portion 61 shown in fig. 6 is rectangular in configuration, and the expansion portion 62 is trapezoidal in configuration. In other embodiments, the strip 61 and the extension 62 may together have a curved or arcuate edge. As shown in fig. 1, the plurality of AD converters 33 are arranged side by side in the longitudinal direction of the first heat conductive member 6 to pass through the strip portion 61 and the expansion portion 62, thereby transferring the generated heat to the strip portion 61 and the expansion portion 62, and the fins 63 of the first heat conductive member 6 are attached to the second heat conductive member 7, thereby conducting the collected heat to the second heat conductive member 7. The interface area of the fins 63 and the extensions 62 has an inclined portion 63a, the inclined portion 63a providing a transition area that facilitates heat transfer. Fig. 6 shows the heat flow direction in the first heat conductive member 6 in the form of arrows, and the number of arrows in different regions from the middle to both ends of the first heat conductive member 6 intuitively shows the amount of heat in the region, for example, one arrow in the middle region indicates that the heat in the region is relatively small, and three arrows in the both end regions indicate that the heat in the region is relatively large. It will be appreciated that the configuration of the first heat conductive member 6 is such that the heat collected by the first heat conductive member 6 from the AD converter 33 of the detector 3 is conducted from the middle portion to both ends, and the heat is gradually increased from the middle portion to both ends. Thereby, heat is collected toward both ends of the first heat conductive member 6, and then transferred to the rail member 1 through the second heat conductive member 7. The configuration of the first heat conductive member 6 can effectively prevent heat from accumulating between the detectors 3, and reduce or prevent a temperature gradient between the detectors.
Fig. 7 shows a schematic view of the second heat conductive member 7. The second heat conductive member 7 includes a heat collecting plate 71, a heat dissipating plate 73, and a plurality of heat conductive elastic pieces 72 connected between the heat collecting plate 71 and the heat dissipating plate 73, and the heat collecting plate 71 collects heat from the first heat conductive member 6, conducts heat from the heat collecting plate 71 having a relatively high temperature to the heat dissipating plate 73 having a relatively low temperature via the heat conductive elastic pieces 72, and then conducts heat to the rail member 1 through the heat dissipating plate 73. For this, the heat collecting plate 71 and the heat dissipating plate 73 are arranged to abut against the bracket member 5 and the rail member 1, respectively, and closely abut against the inner side surfaces 11d, 12d of the first heat conductive member 6 and the rail member 1. The elastic force provided by the heat conductive elastic sheet 72 realizes the above-mentioned abutting arrangement, and ensures that the heat collecting plate 71 and the heat dissipating plate 73 have good thermal contact, thereby improving heat dissipating efficiency. According to various embodiments, the heat collecting plate 71 is removably fixed to the bracket member 5 through the through hole 75 with a fastener (not shown) such as a screw, and the heat dissipating plate 73 abuts against the rail member 1 by the elastic force of the heat conductive elastic sheet 72; alternatively, the second heat conductive member 7 is pressed between the bracket member 5 and the rail member 1 by the elastic force of the heat conductive elastic sheet 72 such that the heat collecting plate 71 and the heat dissipating plate 73 are respectively attached to the fins 63 of the first heat conductive member 6 and the inner side surfaces 11d, 12d of the rail member 1. In the first case, the second heat conductive member 7 should be installed before the rail member 1 is installed, and after the rail member 1 is installed, the second heat conductive member 7 is stably held in the narrow space 8. In the second case, the rail member 1 may be mounted first, after the narrow space 8 is formed, the second heat conductive member 7 may be pressed into the narrow space 8 from the side, in which case the width of the narrow space 8 and the width of the second heat conductive member 7 are designed to allow the second heat conductive member 7 to be pressed into the narrow space 8. The above-described modes allow the second heat conductive member 7 to be easily installed, and the maintenance is convenient and the heat conductive efficiency is high. The heat conductive elastic sheet 72 may be welded or adhered between the heat collecting plate 71 and the heat dissipating plate 73, and may be configured in various manners in the case of ensuring heat conductive efficiency. The heat collecting plate 71 and the heat dissipating plate 73 are parallel to each other, and the heat conductive elastic sheet 72 may be a Z-shaped straight elastic sheet as shown in fig. 6, which is arranged in parallel to each other to be inclined with respect to the heat collecting plate 71 and the heat dissipating plate 73, and the heat collecting plate 71 and the heat dissipating plate 73 are connected by connection portions 74 at both ends; alternatively, the heat conductive elastic sheet 72 is configured as an S-shaped bent elastic sheet or an arc-shaped elastic sheet, and is connected between the heat collecting plate 71 and the heat dissipating plate 73 in the same direction through the connection portions at both ends. The straight spring piece has better heat conduction efficiency, and the S-shaped bent spring piece or the arc-shaped spring piece provides larger elastic force. In order to provide efficient heat conduction, the heat collecting plate 71 may be made of red copper having excellent heat conduction properties, the heat conductive dome 72 may be made of beryllium bronze having excellent heat conduction properties and a certain elasticity, and the heat dissipating plate 73 may be made of common copper or copper alloy such as brass, bronze, and alloys thereof. The additional second heat conducting element 7 provides a fast directional heat transfer path from the support member 5 to the first heat conducting element 6, then to the second heat conducting element 7, and then to the rail member 1.
According to the present application, the support member 2, the bracket member 5 and the rail member 1 may be made of a heat conductive material to allow heat conduction through themselves. The insulating member 4 should be made of an insulating material, and may be configured as a partition or a coating covering the opposite surfaces of the support member 2 and the bracket member 5. The heat insulating member 4 shown in fig. 2 is a strip-shaped partition plate conforming to the areas of the lower side face of the support member 2 and the upper side face of the holder member 5, and in order to conform to the sheet-like structure of the communication member 32 of the detector 3, the outer side faces 22 and 41 of the support member 2 and the heat insulating member 4, respectively, are slightly retracted inward, and the first vertical face portion 53 of the holder member 5 is also slightly retracted inward.
According to the application, a medical imaging device is also provided, which comprises the detector module, and the medical imaging device is a CT device, an MRI device, a PET-CT device, a CT-MR or a PET-MR device.
In summary, in the present application, the structure and arrangement of the components of the detector module cooperate with one another to provide a compact, reliable, safe assembly; the optimized heat dissipation arrangement provides a quick and directional heat conduction route, and efficient and quick heat dissipation is realized.
The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the same, but rather, various modifications and variations may be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.
Claims (10)
1. A detector module comprising a plurality of detector modules, each detector module comprising:
a rail member (1) for supporting the detector module, the rail member comprising a base (11 a, 12 a) having thereon a cooling channel (11 e, 12 e) communicating with a water cooling system, an oil cooling system or an air cooling system;
a support member (2) arranged on the rail member and located above the base;
a plurality of probes (3), each probe comprising a probe unit (31), a communication member (32), and an AD converter (33) communicatively connected to the probe unit through the communication member, the probe unit being seated on an upper surface of the support member, the communication member extending at a side of the support member;
a bracket member (5) arranged below the support member, supported on the rail member by extension portions (51) on both sides, the inner side surfaces (11 d, 12 d) of the base portion of the rail member and the side end surfaces (56) of the bracket member defining a narrow space (8) therebetween;
a heat insulating member (4) disposed between the support member and the bracket member above the base portion of the rail member in contact, covering opposite surfaces of the support member and the bracket member;
a first heat conductive member (6) disposed on a side surface of the holder member and having a configuration conforming to a temperature gradient therein, a plurality of the AD converters being disposed in close proximity or side by side adjacent to the first heat conductive member; and
a second heat conductive member (7) compressively disposed in the narrow space in close contact with the bracket member, the first heat conductive member and the base portion of the rail member.
2. The detector module according to claim 1, characterized in that the second heat conducting member (7) comprises a heat collecting plate (71), a heat radiating plate (73), and a plurality of heat conducting elastic pieces (72) connected between the heat collecting plate and the heat radiating plate, which heat collecting plate and heat radiating plate each abut against the bracket member and the rail member and fit the inner side surfaces of the first heat conducting member and the rail member.
3. The detector module of claim 2, wherein the heat collecting plate and the heat dissipating plate are parallel to each other, the heat conducting elastic sheet is welded or adhered between the heat collecting plate and the heat dissipating plate, and is configured to:
z-shaped straight elastic pieces which are arranged in parallel with each other in an inclined manner relative to the heat collecting plate and the heat radiating plate and are connected with the heat collecting plate and the heat radiating plate through connecting parts at two ends; or (b)
S-shaped bending spring plates or arc-shaped spring plates are connected between the heat collecting plate and the heat radiating plate in the same direction through connecting parts at two ends.
4. The detector module according to claim 2, characterized in that the heat collecting plate is removably fixed to the bracket member by a fastener, the heat radiating plate is abutted against the rail member by the elastic force of the heat conducting elastic sheet, or the heat collecting plate and the heat radiating plate are pressed between the bracket member and the rail member by the elastic force of the heat conducting elastic sheet.
5. The detector module according to any of the claims 2 to 4, characterized in that,
the heat collecting plate is made of red copper, and the heat conducting elastic sheet is made of beryllium bronze; and
the support member, the bracket member, and the rail member are made of a thermally conductive material, and the heat insulating member is made of a heat insulating material configured as a partition or a coating covering opposite surfaces of the support member and the bracket member.
6. The detector module according to any of the claims 1 to 4, characterized in that,
the first heat conductive member (6) includes a strip portion (61) of a middle portion in a longitudinal direction thereof, an expansion portion (62) extending from the strip portion to both ends and increasing in proportion to an area, and a fin (63) formed at a tip end of the expansion portion, the plurality of AD converters passing through the strip portion and the expansion portion in the longitudinal direction of the first heat conductive member, the fin being attached to the second heat conductive member; and is also provided with
The bracket member (5) has a through concave accommodation portion (52) conforming to the first heat conductive member in its configuration in the longitudinal direction.
7. The detector module according to claim 6, characterized in that an inclined portion (63 a) for promoting heat transfer is provided between the expansion portion of the first heat conducting member and the fins.
8. The detector module according to any of the claims 1 to 4, characterized in that,
the communication member (32) extends from the detection unit to a side of the bracket member such that the detector has an L-shaped configuration and the AD converter is proximate to the side of the bracket member, wherein the communication member includes a first vertical portion (32 a) connected to the detection unit, a second vertical portion (32 c) connected to the AD converter, and an inclined portion (32 b) connected between the first vertical portion and the second vertical portion, the bracket member having a first vertical portion (53), an inclined surface portion (54), and a second vertical portion (55) conforming to a structure of the communication member in a vertical direction thereof.
9. The detector module according to any one of claims 1 to 4, characterized in that the rail member includes a first rail (11) and a second rail (12) arranged opposite each other, each of the first rail and the second rail having the base portion, a stopper portion (11 b, 12 b) extending upward from the base portion, and a step portion (11 c, 12 c) formed at an interface position of the base portion and the stopper portion, the extension portion of the bracket member being supported on the step portions of the first rail and the second rail.
10. Medical imaging device, characterized in that it comprises a detector module according to any of claims 1-9, which is a CT device, an MRI device, a PET-CT device, a CT-MR or a PET-MR device.
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| CN202311299584.2A CN117017332B (en) | 2023-10-09 | 2023-10-09 | Detector module and medical imaging equipment |
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| CN202311299584.2A CN117017332B (en) | 2023-10-09 | 2023-10-09 | Detector module and medical imaging equipment |
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| CN117017332B true CN117017332B (en) | 2023-12-26 |
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| DE102014213738B4 (en) * | 2014-07-15 | 2017-09-14 | Siemens Healthcare Gmbh | Detector module for an X-ray detector |
| US20230045875A1 (en) * | 2021-08-11 | 2023-02-16 | Shanghai United Imaging Healthcare Co., Ltd. | Detection apparatus and imaging apparatus |
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| CN104780699A (en) * | 2015-04-24 | 2015-07-15 | 赛诺威盛科技（北京）有限公司 | Heat dissipation device for multiple rows of detectors of CT scanner |
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| CN117017332A (en) | 2023-11-10 |
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