Target sheet fixing device
By setting through grooves and target receiving cavities in the target fixing device, the problem of universality caused by target thickness tolerance is solved, the target is stably fixed and efficiently dissipated, and the adaptability and operating efficiency of the device are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN MAX TOPOLOGY TECH CO LTD
- Filing Date
- 2025-04-25
- Publication Date
- 2026-04-17
AI Technical Summary
Existing target fixing devices suffer from poor versatility due to the limitations of target notches, making them unsuitable for target plates of different thicknesses and causing assembly failures.
A target fixing device is designed, which uses a target positioning component inside the target box. By setting through grooves and target receiving cavities on the target positioning component, a heat dissipation channel is formed. A foolproof notch is set at the corner of the target positioning component to achieve independent positioning and heat dissipation of the target.
It improves the versatility and heat dissipation efficiency of the target fixing device, simplifies the maintenance process, reduces downtime, and increases production efficiency.
Smart Images
Figure CN224133159U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical isotope production technology, specifically a target fixation device. Background Technology
[0002] Electron linear accelerators are a relatively new method for producing medical isotopes, effectively supplementing the limitations of reactor-based production. The process involves accelerating electrons to very high energies using a linear accelerator. The high-energy electron beam bombards a conversion target, generating bremsstrahlung radiation, or high-energy gamma rays. These gamma rays irradiate the target material, causing a photonuclear reaction that produces the target medical isotope. After irradiation, the target clips are removed from the photonuclear reactor and transported to a radiochemical separation chamber for further processing, ultimately yielding isotopes suitable for nuclear medicine. A conventional target clip fixing device consists of two clips located on opposite sides of a target assembly (a series of thin target clips). The cross-section of one opposite side of each clip has a semi-circular groove, and multiple notches along the groove wall are used to fix individual target clips. Multiple target clips are inserted into their corresponding notches to form the target assembly, which is then secured to the clips with screws. The drawback of this target fixing device is that, limited by the target notch, the assembly lacks versatility and can only fix targets that can be machined with high precision, such as metal targets. Furthermore, targets manufactured through pressing and sintering processes have significant thickness tolerances during machining, making it impossible for targets thicker than the notch to fit into the fixing notch of the target clamping plate, thus preventing the formation of a complete target fixing device. Utility Model Content
[0003] This invention provides a target fixing device to solve the problem in the prior art where the target clamp is limited by the target notch, resulting in the inability to form a complete target fixing device. The specific solution is as follows:
[0004] A target fixing device, the fixing device comprising: a target box and a target positioning component located inside the target box;
[0005] Several target positioning components are provided along the extension direction of the target box. Each target positioning component has a through groove on one side of its cross-section, and a target receiving cavity is provided on the side of the target positioning component facing away from the through groove along the extension direction. The target positioning component is installed inside the target box.
[0006] The target receiving cavity penetrates the bottom of the through groove but does not penetrate the two walls of the through groove, so that the two walls of the through groove located in the target receiving cavity form the target limiting part, and the through groove forms a heat dissipation channel for the target.
[0007] Preferably, the corners of the target positioning component are provided with anti-foolproof notches.
[0008] Preferably, the target box has a slot for placing the target positioning component inside;
[0009] The placement slot is provided along the extension direction of the target box, and the shape and size of the placement slot match the target positioning component;
[0010] The target positioning components are sequentially and parallel to each other within the placement groove along its extension direction.
[0011] Preferably, the depth from the target receiving cavity to the target limiting portion is determined according to the thickness of the target.
[0012] Preferably, the internal contour of the target receiving cavity matches the external contour of the target.
[0013] Preferably, the thickness of the target plate limiting portion is determined according to the thickness of the designed cooling channel.
[0014] Compared with the prior art, the beneficial effects of this application are as follows:
[0015] This application solves the problem of assembly failure caused by traditional target fixing devices being limited by the single size of the fixing notch, resulting in a lack of versatility. By setting several target positioning components inside the target box, these components are arranged in parallel along the extension direction of the placement groove, allowing the size of each target receiving cavity to be adjusted independently. This is suitable for target pieces with large thickness tolerances caused by pressing or sintering processes.
[0016] The continuous through-channel heat dissipation channel formed by the through slot in this application significantly improves the thermal management efficiency of the target and avoids target performance degradation or damage caused by overheating due to irradiation.
[0017] In this application, a foolproof notch is provided at the corner of the target positioning component to facilitate handling. At the same time, the foolproof notch at the corner of the target positioning component and the directional matching of the target box guide rail ensure the uniqueness of the installation direction.
[0018] Meanwhile, individual target positioning components can be disassembled, replaced, or cleaned independently, simplifying maintenance procedures, reducing downtime, and improving production efficiency; the thickness of the target limiting part is dynamically adjusted according to heat dissipation requirements. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the target fixing device in the embodiments of this application;
[0020] Figure 2 This is a schematic diagram of the target positioning component in the embodiments of this application;
[0021] Figure 3 This is a front view of the target positioning component in an embodiment of this application;
[0022] Figure 4 This is a rear-view axonometric view of the target positioning components stacked together in an embodiment of this application.
[0023] Figure 5 This is a view of the target fixing device along the He gas direction in an embodiment of this application;
[0024] Figure 6 This is a view of the target fixing device along the beam direction in an embodiment of this application.
[0025] In the figure: 1. Target positioning component; 2. Through groove; 3. Target receiving cavity; 4. Target limiting part; 5. Foolproof notch; 6. Target box; 7. Target; 8. Placement groove; 9. Heat dissipation part. Detailed Implementation
[0026] A target fixing device, the fixing device comprising: a target box and a target positioning component located inside the target box;
[0027] Several target positioning components are provided along the extension direction of the target box. Each target positioning component has a through groove on one side of its cross-section, and a target receiving cavity is provided on the side of the target positioning component facing away from the through groove along the extension direction. The target positioning component is installed inside the target box.
[0028] The target receiving cavity penetrates the bottom of the through groove but does not penetrate the two walls of the through groove, so that the two walls of the through groove located in the target receiving cavity form the target limiting part, and the through groove forms a heat dissipation channel for the target.
[0029] It should be noted that:
[0030] In this application, each target positioning element has a through groove on one side of its cross-sectional direction, wherein the cross-sectional direction refers to the direction perpendicular to the extension direction of the target positioning element.
[0031] The target receiving cavity is an open receiving cavity, with one end of the through groove facing away from it being open.
[0032] The target positioning member has a target receiving cavity opened along the extension direction on the side facing away from the through groove to place the target. The target positioning member is detachably connected to the target box. In the application, the detachable connection between the target positioning member and the target box includes, but is not limited to, any connection method in which several target positioning members are simply stacked or slidably connected along the extension direction (length direction) of the target box to form a detachable connection.
[0033] The target receiving cavity is connected to the bottom of the through groove, but not to the two walls of the through groove. Because the two walls of the through groove are not connected to the target receiving cavity, the portions of the two walls of the through groove located within the target receiving cavity form a target limiting part. When the target positioning component is placed, the side with the through groove (target limiting part) faces the inside of the target box, and then they are placed in sequence. Due to the obstruction of the target limiting part, the target will not fall out from the side of the target receiving cavity facing the through groove (target limiting part).
[0034] In this application, the through slot is a through slot along the horizontal direction (short axis direction) of the target positioning component, which facilitates the provision of a channel for gas heat dissipation. After the target positioning component containing the target is stacked in the target box, the through slot forms a heat dissipation channel for the target. When the target generates heat during operation, the heat can be dissipated through the through slot, which helps to dissipate heat from the target and ensures its normal operation.
[0035] This application solves the problem that existing target boxes are limited by the size of their internal notches, which can only accommodate target pieces of a certain thickness and cannot accommodate target pieces of different thicknesses, thus lacking versatility.
[0036] Meanwhile, the target fixing device provided in this application achieves the fixing and limiting of the target through the target positioning component. A heat dissipation part is provided at the relative position of the target box and the through groove. The through groove is used as a heat dissipation channel, and the heat is discharged through the heat dissipation part, which helps to improve the stability and service life of the target.
[0037] Furthermore, the corners of the target positioning component are provided with anti-foolproof notches.
[0038] It should be noted that:
[0039] In this application, the foolproof notch includes, but is not limited to, any one of a rectangle or a square.
[0040] Furthermore, the target box is provided with a slot for placing the target positioning component inside;
[0041] The placement slot is provided along the extension direction of the target box, and the shape and size of the placement slot match the target positioning component;
[0042] The target positioning components are sequentially and parallel to each other within the placement groove along its extension direction.
[0043] It should be noted that:
[0044] In this application, a placement groove for placing the target positioning component is specially provided inside the target box along the extension direction of the target box, and the shape and size of the placement groove are adapted to the outer dimensions and shape of the target positioning component so that the target positioning component can be placed into the placement groove.
[0045] Meanwhile, based on the anti-fooling notches set at the corners of the target positioning component, since the shape and size of the placement groove are adapted to the outer dimensions and shape of the target positioning component, the groove wall of the placement groove forms a guide rail adapted to the size and shape of the anti-fooling notch, thereby realizing the sliding connection between the target positioning component and the target box.
[0046] Furthermore, the depth from the target receiving cavity to the target limiting portion is determined according to the thickness of the target.
[0047] Furthermore, the internal contour of the target receiving cavity matches the external contour of the target.
[0048] Furthermore, the thickness of the target plate limiting portion is determined according to the thickness of the designed cooling channel.
[0049] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0050] This embodiment provides a target fixing device, which includes: a target positioning component and a target box;
[0051] like Figure 2-3 As shown, in this embodiment, the target positioning component is a square plate. A through groove 2 is provided on one side of the target positioning component's cross-section, and a target receiving cavity 3 is provided at the center of the other side along the extending direction. That is, the target receiving cavity 3 is perpendicular to the through groove 2, and the centers of the two coincide. A foolproof notch 5 (rectangular or square) is provided at the corner of the target positioning component 1, which is used to cooperate with the placement groove 8 of the target box 6 to achieve directional installation.
[0052] The through groove 2 extends along the short axis of the target positioning component 1, forming a horizontal heat dissipation channel.
[0053] The target receiving cavity 3 penetrates the bottom of the through groove 2, but does not penetrate the two walls of the through groove 2, forming the target limiting part 4, as shown in the attached figure. Figure 3 and 4 As shown, when installing the target piece 7, the side of the target piece 7 is used to fix it. Figure 3Since the target to be fixed in this embodiment is a circular structure, the cross-section of the target receiving cavity 3 in this embodiment is circular. The depth of the target receiving cavity 3 is adjusted according to the thickness of the target 7, and the internal contour matches the external shape of the target 7 to ensure the stable fixing of target 7 with different tolerances.
[0054] The thickness of the target plate limiting part 4 is determined by the design requirements of the cooling channel, taking into account both heat dissipation efficiency and structural strength.
[0055] like Figure 1 As shown, the target box 6 has multiple placement slots 8 along its extension direction inside, the shape of which matches the outer contour of the target positioning member 1. The slot walls of the placement slots 8 form anti-foolproof notches 5 sliding guides located on opposite sides of the same target positioning member 1, so that the target positioning members 1 can be inserted sequentially and parallelly along the length of the target box.
[0056] In this embodiment, the target box 6 is composed of two shells with U-shaped cross sections with opposite openings. The top and bottom of the target box 6 are respectively provided with placement slots 8, and the left and right sides of the target box 6 are provided with heat dissipation parts 9 corresponding to the two ends of the through slot 2.
[0057] like Figure 4-6 As shown, when multiple target positioning components 1 are stacked in the target box 6, the through groove 2 forms a continuous heat dissipation channel for heat dissipation when the target 7 is working.
[0058] During installation, the target pieces 7 are inserted one by one into the target piece receiving cavity 3 of the target piece positioning member 1 from one open end of the target piece receiving cavity, and the target piece limiting part 4 prevents the target pieces from falling off.
[0059] Align the target positioning piece 1, which is loaded with target piece 7, with the placement slot of target box 6 through the anti-foolproof notch 5, and slide it into the target box along the guide rail until the stacking is completed.
[0060] During operation, the heat generated by the target plate 7 is dissipated through the heat dissipation channel formed by the through slot 2. Figure 4 ).
[0061] During disassembly, the target positioning piece 1 can be pulled out by sliding it in the opposite direction along the guide rail, and the target piece 7 can be separated without adjusting the size of the clamping plate notch, which has high adaptability.
[0062] Technical effect
[0063] This embodiment solves the compatibility problem caused by the target thickness tolerance of traditional target clamps by the sliding engagement of the detachable target positioning component 1 with the target box 6. At the same time, the heat dissipation channel formed by the through groove 2 improves the working stability of the target 7, and the design of the foolproof notch 5 avoids installation errors, significantly improving the versatility and operating efficiency of the device.
Claims
1. A target sheet fixing device characterized by comprising: The fixing device includes: a target box and a target positioning component located inside the target box; Several target positioning components are provided along the extension direction of the target box. Each target positioning component has a through groove on one side of its cross-section, and a target receiving cavity is provided on the side of the target positioning component facing away from the through groove along the extension direction. The target positioning component is installed inside the target box. The target receiving cavity penetrates the bottom of the through groove but does not penetrate the two walls of the through groove, so that the two walls of the through groove located in the target receiving cavity form the target limiting part, and the through groove forms a heat dissipation channel for the target.
2. A target fixture as claimed in claim 1, wherein The target positioning component has a foolproof notch at each corner.
3. The target fixing device according to claim 1, characterized in that, The target box has a slot for placing target positioning components inside; The placement slot is provided along the extension direction of the target box, and the shape and size of the placement slot match the target positioning component; The target positioning components are sequentially and parallel to each other within the placement groove along its extension direction.
4. The target fixture of claim 1, wherein, The depth from the target receiving cavity to the target limiting part is determined according to the thickness of the target.
5. The target fixture of claim 1, wherein, The internal contour of the target receiving cavity matches the external contour of the target.
6. The target fixture of claim 1, wherein, The thickness of the target plate limiting part is determined according to the thickness of the designed cooling channel.