CT detector with module temperature capable of being self-adjusted

Abstract

The module temperature self-adjustable CT detector comprises a guide rail, a detection module array, a detector, a fan assembly and a baffle, the baffle faces the fan assembly, and an air inlet groove is formed in the baffle to serve as an airflow channel; the side part of the baffle plate is also fixedly connected with a bimetallic strip, one end of the bimetallic strip is fixedly connected with the detector, and the bimetallic strip bends towards one side when the temperature changes to drive the baffle plate to slide left and right; the temperature can be automatically regulated and controlled through fan rotating speed control and temperature change in the module, and the baffle slides left and right through deformation generated by temperature change of the bimetallic strip so as to control the size of the air inlet; the consistency of the module temperature can be effectively provided, the short-time large-amplitude temperature fluctuation is avoided, and the use stability of CT equipment is improved.

Description

Technical Field

[0001] This invention relates to the field of CT detectors, and more specifically to a CT detector with self-adjustable module temperature. Background Technology

[0002] As a core component of CT scans, the performance of the CT detector directly affects the quality of CT images. To improve detector performance, it is necessary to stabilize the detector within a certain temperature range and minimize temperature differences between detector modules. Current detector module cooling typically utilizes fans for overall air convection cooling, and the air inlet of the module remains constant. Heating methods often employ heating strips for overall heating, resulting in poor temperature stability control and significant temperature differences between modules.

[0003] Therefore, this application designs a CT detector that adjusts the airflow by controlling the size of the air inlet of the baffle and works in conjunction with other temperature control systems to enable the module temperature to self-regulate. Summary of the Invention

[0004] The purpose of this invention is to provide a CT detector with self-adjustable module temperature, in order to solve the aforementioned problems.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a CT detector with self-adjustable module temperature, comprising: The guide rail is fixedly connected to the detector module array at its bottom; The detection module array consists of several groups of detectors, with the upper ends of the detectors fixedly connected to the guide rails. The fan assembly, with its rear end housing the detector module array, supplies air to the detectors; A baffle is slidably connected to the side of the detector, facing the fan assembly. An air inlet slot is provided on the baffle as an airflow channel. A bimetallic strip is also fixedly connected to the side of the baffle. One end of the bimetallic strip is fixedly connected to the detector. When the temperature changes, the bimetallic strip bends to one side, causing the baffle to slide left and right.

[0006] By incorporating temperature control components in each module of the detector, and equipping each module with a baffle that can self-adjust the size of its air inlet, each module can perform self-temperature detection. If a module's temperature is too high, the air inlet size can be increased to quickly lower its temperature. Conversely, if a module's temperature is too low, the air inlet size can be decreased or even closed, while simultaneously using heating strips to raise the module's temperature to the required range. When a module's air inlet size is reduced or closed, more airflow can be delivered to other modules requiring cooling, while maintaining the fan speed. When a large number of modules are overheating, the fan speed can be increased via the control board; conversely, when a large number of modules are underheating, the fan speed can be decreased or even shut off. This method allows for rapid temperature regulation of the detector modules, minimizing temperature differences between modules and stabilizing the detector module temperature within the required range. It also improves fan airflow utilization and reduces unnecessary waste. Furthermore, the deformation of the bimetallic strip during temperature changes causes the baffle to slide left and right, thereby altering the size of the air inlet and controlling the airflow to each detector. This effectively improves the temperature consistency of the module.

[0007] Furthermore, it also includes: The protective plate is bolted to the upper end of the guide rail; The pressure plate is bolted to the upper end of the protective plate. The rear housing is bolted to the fan assembly and together with the fan assembly forms a space for housing the detection module array; an air outlet is provided on the rear housing. The control board is bolted inside the rear housing and is equipped with a chip fan mounted on the back of the control board.

[0008] Furthermore, the fan assembly includes: The front housing has an L-shaped cross-section, with the rear section used to accommodate the array of detection modules. A rectangular air inlet cavity is bolted to the front end of the front housing. The rear housing is bolted to the front housing, and the array fan and the honeycomb mesh are bolted sequentially between the rear housing and the front housing; The filter screen is bolted to the side of the air inlet chamber away from the front housing.

[0009] Furthermore, the guide rail, the detection module array, and the fan assembly are all arc-shaped, and the control board is electrically connected to the detection module array and the fan assembly to achieve logic control.

[0010] Furthermore, the detector includes: The left guard plate is bolted to the L-shaped right guard plate to form a receiving space. The lower end of the baffle is slidably connected to the bottom wall of the right guard plate. The left and right guard plates provide a limit for the sliding of the baffle. The baffle faces the fan assembly side. The data acquisition board is bolted to the inside of the right protective plate. The aluminum support is bolted to the left and right guard plates on both sides, respectively. The crystal plate, used to receive X-rays, is bolted to the aluminum support near the left guard plate. Anti-scattering filter grid, with both ends bolted to the upper end of the aluminum support; The temperature control component is installed at the rear of the crystal plate.

[0011] Furthermore, the temperature control component includes: Thermally conductive silicone is attached to the rear end of the crystal plate in the vertical direction. The heat sink is bolted to the left protective plate; The heating strip is fixedly connected to the lower end of the aluminum support.

[0012] Furthermore, the crystal board has an L-shaped structure, with an AD chip arranged vertically. Thermally conductive silicone is attached to the rear end of the AD chip, and a heat sink is positioned at the rear end of the thermally conductive silicone. The lower end of the AD chip is electrically connected to the lower end of the data collection board through the heat sink. The end of the bimetallic strip away from the baffle is bolted to the left guard plate.

[0013] Compared with existing technologies, it has the following beneficial effects: By incorporating temperature control components in each module of the detector, and equipping each module with a baffle that can self-adjust the size of its air inlet, each module can perform self-temperature detection. If a module's temperature is too high, the air inlet size can be increased to quickly lower its temperature. Conversely, if a module's temperature is too low, the air inlet size can be decreased or even closed, while simultaneously using heating strips to raise the module's temperature to the required range. When a module's air inlet size is reduced or closed, more airflow can be delivered to other modules requiring cooling, while maintaining the fan speed. When a large number of modules are overheating, the fan speed can be increased via the control board; conversely, when a large number of modules are underheating, the fan speed can be decreased or even shut off. This method allows for rapid temperature regulation of the detector modules, minimizing temperature differences between modules and stabilizing the detector module temperature within the required range. It also improves fan airflow utilization and reduces unnecessary waste. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only preferred embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of a CT detector with self-adjustable module temperature according to the present invention. Figure 2 An exploded view of a CT detector with self-adjustable modular temperature according to the present invention; Figure 3 This is an exploded view of the fan assembly of a CT detector with self-adjustable modular temperature according to the present invention. Figure 4 This is a side view of the fan assembly of a CT detector with self-adjustable modular temperature according to the present invention. Figure 5 This is a schematic diagram of the fan assembly of a CT detector with self-adjustable module temperature according to the present invention. Figure 6 This is a schematic diagram of a CT detector with self-adjustable module temperature according to the present invention. Figure 7 This is an exploded view of a CT detector with self-adjustable modular temperature according to the present invention. Figure 8 This is a schematic diagram of the sliding baffle of a CT detector with self-adjustable module temperature according to the present invention. Figure 9 This is a schematic diagram of the bimetallic strip structure of a CT detector with self-adjustable module temperature according to the present invention.

[0016] In the diagram: 1-Guide rail; 2-Detector module array; 3-Detector; 31-Left protective plate; 32-Right protective plate; 33-Data acquisition board; 34-Aluminum support; 35-Crystal board; 351-AD chip; 36-Anti-scattering filter grid; 37-Temperature control component; 371-Thermal conductive silicone; 372-Heat sink; 373-Heating strip; 4-Fan assembly; 41-Front housing; 42-Air inlet cavity; 43-Rear housing; 44-Array fan; 45-Honeycomb mesh; 46-Filter screen; 5-Baffle; 51-Air inlet slot; 6-Bimetallic strip; 7-Protection board; 8-Pressure plate; 9-Rear outer shell; 91-Control board; 92-Chip fan. Detailed Implementation

[0017] To better understand the structure, functional features, and advantages of the present invention, preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings: like Figures 1 to 9As shown, this application proposes a CT detector with self-adjustable module temperature, comprising: Guide rail 1 is fixedly connected to the detector module array 2 below; it serves as the main frame of detector 3 and is used for precise positioning and installation of detector 3 modules. The detection module array 2 is composed of several groups of detectors 3, each with its upper end bolted to a guide rail 1. The guide rail 1 limits and fixes the detectors 3, ensuring uniform arrangement and stability during use. The detectors 3 receive X-rays and convert them into digital data that can be processed by a computer.

[0018] The fan assembly 4 is used to house the detection module array 2 at the rear end. The fan assembly 4 is used to supply air to the detector 3, serving as the air intake channel for the detector 3. It contains a cooling fan and also provides protection for the internal components of the detector 3. A baffle 5 is slidably connected to the side of the detector 3. The baffle 5 faces the fan assembly 4. An air inlet slot 51 is provided on the baffle 5 as an airflow channel. A bimetallic strip 6 is also fixedly connected to the side of the baffle 5. One end of the bimetallic strip 6 is fixedly connected to the detector 3. When the temperature changes, the bimetallic strip 6 bends to one side, causing the baffle 5 to slide left and right.

[0019] See Figure 2 It also includes: The protective plate 7 is bolted to the upper end of the guide rail 1 to protect the internal components of the detector 3, while not having a significant impact on X-ray attenuation. Pressure plate 8, the lower end of pressure plate 8 is bolted to the upper end of protective plate 7, used to fix protective plate 7 and form the outermost protective structure; The rear housing 9 is bolted to the fan assembly 4 and together with the fan assembly 4 forms a space for housing the detection module array 2; the rear housing 9 has an air outlet; it serves as an air outlet channel for the detector 3 and also provides protection for the internal components of the detector 3.

[0020] The control board 91 is bolted inside the rear housing 9 and is equipped with a chip fan 92 mounted on the back of the control board 91. The chip fan 92 is used to collect data from the detection module array 2. The control board 91 is used to control the air intake rate inside the fan assembly 4 to keep the temperature of the detection module array 2 stable within a certain range. The chip fan 92 is used to dissipate heat from the FPGA chip on the control board 91.

[0021] As another embodiment, such as Figures 2 to 5 As shown, fan assembly 4 includes: The front housing 41 has an L-shaped cross-section and is a component of the detector 3 cavity. It forms a closed cavity with other components and provides fixation and support for components such as the fan. The rear part is used to accommodate the detector module array 2. The front end of the front housing 41 is bolted to a rectangular air inlet cavity 42. The air inlet cavity 42 provides fixation for the filter 46 and, under the action of the array fan 44, forms a negative pressure cavity, allowing external air to enter the cavity under pressure.

[0022] The rear housing 43 is bolted to the front housing 41 and has an airflow channel for entering the detector 3. It cooperates with the baffle 5 on the detector module array 2 to open and close the airflow channel. An array fan 44 and a honeycomb mesh 45 are bolted between the rear housing 43 and the front housing 41 in sequence. The array fan 44 is used to provide air intake for the detector 3, and its speed can be controlled by the control board 91. The honeycomb mesh 45 plays an electromagnetic shielding role to prevent the detector 3 from being subjected to electromagnetic interference.

[0023] The filter screen 46 is bolted to the side of the air inlet cavity 42 away from the front housing 41. It is used to filter out large particles in the environment and prevent them from entering the detector 3 and affecting the function of the detector 3.

[0024] See Figure 2 The guide rail 1, the detector module array 2, and the fan assembly 4 are all arc-shaped to facilitate installation inside the CT machine.

[0025] It should be noted that the control board 91 is electrically connected to the detection module array 2 and the fan assembly 4 to realize logic control. The control board 91 adopts a programmable gate array microcontroller chip structure. Specifically, an 8051 chip can be used to perform logic control of each electrical component.

[0026] For detector 3 as a whole, when there are many detector 3 modules with excessively high temperatures, the control board 91 controls the array fan 44 to rotate faster, increasing the overall air intake of detector 3 and improving the cooling speed; when there are many detector 3 modules with excessively low temperatures, the control board 91 can control the array fan 44 to reduce its speed or even turn off the fan, reducing the overall air intake of detector 3 and reducing the temperature loss of detector 3.

[0027] As another embodiment, such as Figures 6 to 9 As shown, detector 3 includes: The left guard plate 31 is bolted to the L-shaped right guard plate 32 to form a receiving space. The lower end of the baffle 5 is slidably connected to the bottom wall of the right guard plate 32. The left guard plate 31 and the right guard plate 32 provide a limit for the sliding of the baffle 5. The baffle 5 faces the side of the fan assembly 4. The data acquisition board 33 is bolted to the inside of the right guard plate 32 and is used to receive data from multiple crystal boards 35 and perform encoding, compression and other processing. The aluminum support 34 is bolted to the left guard plate 31 and the right guard plate 32 on both sides, serving as the mounting support for the crystal plate 35 and the main frame of the detector module 3. The crystal plate 35, used to receive X-rays and convert them into digital quantities that can be processed by a computer, is bolted to the aluminum support 34 near the end of the left guard plate 31. The anti-scattering grid 36 is bolted to the upper end of the aluminum support 34 at both ends, and is used to shield and absorb scattered rays that may affect the quality of CT images. Temperature control component 37 is installed at the rear of crystal plate 35.

[0028] See Figure 7 The temperature control component 37 includes: Thermally conductive silicone 371 is attached to the rear end of the crystal board 35 in the vertical direction to transfer the heat of the AD chip 351 on the crystal board 35 to the heat sink 372. Heat sink 372 is bolted to the left guard plate 31 and dissipates heat to AD chip 351 on crystal board 35 through heat transfer. The rear end of heat sink 372 is provided with vertically arranged heat dissipation fins. Heating strip 373 is fixedly connected to the lower end of aluminum support 34. When the crystal temperature is too low, it is used to heat aluminum support 34 and transfer heat to crystal plate 35 to stabilize its temperature within the required range. Heating strip 373 can be an electric heating wire structure.

[0029] See Figure 7 The crystal plate 35 has an L-shaped structure, with an AD chip 351 vertically mounted on it. Thermally conductive silicone 371 is attached to the rear end of the AD chip 351, and a heat sink 372 is positioned at the rear end of the thermally conductive silicone 371. The lower end of the AD chip 351 is electrically connected to the lower end of the data collection board through the heat sink 372. For each module of the detector 3, each module performs self-temperature detection. When the module temperature is too high, the size of the module's air inlet is increased to quickly reduce the module temperature. When the module temperature is too low, the size of the module's air inlet is reduced or even closed, while the heating strip 373 is used to heat the module, causing the module temperature to quickly rise to the required range. When the air inlet size of a module is reduced or closed, with the fan speed remaining constant, more airflow can be delivered to other modules that require heat dissipation. See Figure 7 as well as Figure 8 The end of the bimetallic strip 6 away from the baffle 5 is bolted to the left guard plate 31.

[0030] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any way. Any person skilled in the art can make many possible variations and modifications to the technical solutions of the present invention, or modify them into equivalent embodiments, without departing from the scope of the present invention. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technology of the present invention without departing from the scope of the present invention are within the protection scope of the present invention.

Claims

1. A CT detector with self-adjustable modular temperature, characterized in that, include: Guide rail (1), the lower part of which is fixedly connected to the detection module array (2); The detection module array (2) is composed of several groups of detectors (3), and the upper ends of the detectors (3) are fixedly connected to the guide rail (1). A fan assembly (4) is provided at the rear end to house the detection module array (2), and the fan assembly (4) is used to supply air to the detector (3); The detector (3) is slidably connected to a baffle (5) on its side. The baffle (5) faces the fan assembly (4). An air inlet slot (51) is provided on the baffle (5) as an airflow channel. A bimetallic strip (6) is also fixedly connected to the side of the baffle (5). One end of the bimetallic strip (6) is fixedly connected to the detector (3). When the temperature changes, the bimetallic strip (6) bends to one side, causing the baffle (5) to slide left and right.

2. The self-adjustable temperature CT detector according to claim 1, characterized in that, Also includes: A protective plate (7) is bolted to the upper end of the guide rail (1); Pressure plate (8), the lower end of which is bolted to the upper end of the protective plate (7); The rear outer shell (9) is bolted to the fan assembly (4) and together with the fan assembly (4) forms a space for accommodating the detection module array (2); an air outlet is provided on the rear outer shell (9); The control board (91) is bolted inside the rear housing (9) and is equipped with a chip fan (92) mounted on the back of the control board (91).

3. The CT detector with self-adjustable module temperature according to claim 1, characterized in that, The fan assembly (4) includes: The front housing (41) has an L-shaped cross-section and the rear is used to accommodate the detection module array (2). The front end of the front housing (41) is bolted to an air inlet cavity (42) with a rectangular structure. The rear housing (43) is bolted to the front housing (41), and an array fan (44) and a honeycomb mesh (45) are bolted between the rear housing (43) and the front housing (41) in sequence; The filter screen (46) is bolted to the side of the air inlet cavity (42) away from the front housing (41).

4. The CT detector with self-adjustable module temperature according to claim 1, characterized in that, The guide rail (1), the detection module array (2), and the fan assembly (4) are all arc-shaped.

5. The CT detector with self-adjustable module temperature according to claim 2, characterized in that, The control board (91) is electrically connected to the detection module array (2) and the fan assembly (4) to achieve logic control.

6. The CT detector with self-adjustable module temperature according to claim 1, characterized in that, The detector (3) includes: The left guard plate (31) is bolted to the L-shaped right guard plate (32) to form a receiving space. The lower end of the baffle (5) is slidably connected to the bottom wall of the right guard plate (32). The left guard plate (31) and the right guard plate (32) provide a limit for the sliding of the baffle (5). The baffle (5) faces the side of the fan assembly (4). The data acquisition board (33) is bolted to the inside of the right guard plate (32); The aluminum support (34) is bolted to the left guard plate (31) and the right guard plate (32) on both sides respectively; A crystal plate (35) for receiving X-rays is bolted to one end of the aluminum support (34) near the left guard plate (31); The anti-scattering filter grid (36) is bolted to the upper end of the aluminum support (34) at both ends; Temperature control component (37) is installed at the rear of the crystal plate (35).

7. The self-adjustable temperature CT detector according to claim 6, characterized in that, The temperature control component (37) includes: Thermally conductive silicone (371) is attached to the rear end of the crystal plate (35) in the vertical direction; The heat sink (372) is bolted to the left guard plate (31); The heating strip (373) is fixedly connected to the lower end of the aluminum support (34).

8. The self-adjustable temperature CT detector according to claim 7, characterized in that, The crystal plate (35) has an L-shaped structure, and an AD chip (351) is arranged in the vertical direction. The thermally conductive silicone (371) is attached to the rear end of the AD chip (351), and the heat sink (372) is positioned at the rear end of the thermally conductive silicone (371).

9. The self-adjustable temperature CT detector according to claim 8, characterized in that, The lower end of the AD chip (351) is electrically connected to the lower end of the data collection board through the heat sink (372).

10. The self-adjustable temperature CT detector according to claim 6, characterized in that, The end of the bimetallic strip (6) away from the baffle (5) is bolted to the left guard plate (31).

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