Cold conduction and heat dissipation structure of VPX case
By designing a snap-fit structure and a dust filter in the VPX chassis to conduct heat and solve the problems of inconvenient disassembly and dust affecting heat dissipation in traditional VPX chassis, the system achieves convenient installation and efficient heat dissipation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHENGDU HUAXIN CHUANGHE TECH CO LTD
- Filing Date
- 2025-05-15
- Publication Date
- 2026-05-08
AI Technical Summary
Traditional VPX chassis have inconvenient heat dissipation structures that are difficult to disassemble and install, and the heat dissipation components are easily affected by dust, which can affect their heat dissipation performance.
A heat dissipation structure for the VPX chassis was designed, which uses components such as a cooling chip, copper-aluminum heat dissipation block, heat sink fins, and cooling fan. The design of the snap-fit structure and dustproof mesh enables convenient installation and dust protection.
The VPX chassis allows for easy installation and removal, maintains good heat dissipation, effectively prevents dust from entering, and extends the lifespan of the heat dissipation components.
Smart Images

Figure CN224217068U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of VPX chassis technology, specifically to a cooling and heat dissipation structure for a VPX chassis. Background Technology
[0002] The VPX chassis is a high-performance computing platform primarily used in aerospace and military fields. After production, the VPX chassis is equipped with internal heat dissipation structures to address heat issues during use. These typically employ heat dissipation components such as heat sinks and cooling fans to transfer the heat generated by the internal components to the outside.
[0003] Traditional VPX chassis cooling structures require installation inside the chassis and necessitate disassembly and reassembly using bolts, which is inconvenient. Therefore, we propose a new cooling structure for VPX chassis to address these issues. Utility Model Content
[0004] The purpose of this invention is to provide a heat dissipation structure for a VPX chassis to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a cooling structure for a VPX chassis, comprising a cooling chip, a chassis shell mounted on the outside of the cooling chip, an installation groove provided inside the chassis shell, a copper-aluminum cooling block mounted on the left side of the cooling chip, heat dissipation fins mounted on the right side of the cooling chip, and a cooling fan mounted on the right side of the heat dissipation fins, fixing blocks provided at both the upper and lower ends of the heat dissipation fins, fixing bolts installed inside the fixing blocks, a connecting block fixed at one end of each fixing block, and a mounting ring movably provided inside each connecting block, and assembly blocks fixed at both the upper and lower ends of the heat dissipation fins, with mounting clips installed on one side of each assembly block.
[0006] Preferably, the mounting ring and the mounting block are compatible, and the mounting ring and the mounting block form an engaging structure.
[0007] Preferably, the assembly blocks are provided in four groups, and the four groups of assembly blocks are symmetrically distributed about the central axis of the heat dissipation fins.
[0008] Preferably, the upper and lower ends of the front end of the cooling fan are fixed with mounting bases, and the mounting bases are equipped with a first dustproof net.
[0009] Preferably, the cross-section of the first dustproof net is smaller than the cross-section of the mounting base, and the first dustproof net and the mounting base form a sliding structure.
[0010] Preferably, a second dustproof mesh is fixed to both the front and rear ends of the heat dissipation fins, and a fixing component is installed inside the second dustproof mesh.
[0011] Preferably, a plurality of fasteners are provided, and the plurality of fasteners are symmetrically distributed about the central axis of the second dustproof net.
[0012] Compared with the prior art, the beneficial effects of this utility model are: the heat dissipation structure of the VPX chassis not only facilitates installation and disassembly between the chassis and the heat sink, and ensures heat dissipation effect by preventing dust from the heat sink fins, but also provides dust protection for the fan.
[0013] (1) When using this heat dissipation structure, it needs to be installed inside the chassis shell to dissipate heat from the VPX chassis. During installation, the structure is equipped with components such as connecting blocks, mounting blocks, mounting rings and assembly blocks, which makes it easy to install the heat dissipation structure inside the chassis shell and easy to disassemble later. This makes the heat dissipation structure easy to install and disassemble, and more convenient to use.
[0014] (2) By setting fixing parts and a second dustproof net at both ends of the heat dissipation fins, the front and rear ends of the heat dissipation fins are protected, which can prevent external dust from falling into the surface of the heat dissipation fins and affecting the heat conduction effect. Because of the above components, the heat dissipation fins maintain a good heat dissipation effect and the performance is better.
[0015] (3) By setting a first dustproof net and a mounting base at one end of the cooling fan, the cooling fan will introduce external dust into the interior of the heat dissipation structure when in use. The setting of the above components adds protection to one end of the cooling fan, preventing external dust from entering the interior of the heat dissipation structure through the cooling fan. Furthermore, the first dustproof net is easy to disassemble and clean, thus providing better protection for the cooling fan. Attached Figure Description
[0016] Figure 1 This is a side sectional view of the present invention.
[0017] Figure 2 For the present utility model Figure 1 A magnified view of the structure at point A in the middle;
[0018] Figure 3 This is a front view structural diagram of the present utility model;
[0019] Figure 4 This is a front view schematic diagram of the second dustproof net of this utility model.
[0020] In the diagram: 1. Copper-aluminum cooling block; 2. Cooling chip; 3. Mounting slot; 4. Chassis shell; 5. Fixing block; 6. Heat dissipation fins; 7. Cooling fan; 8. First dustproof net; 9. Connecting block; 10. Mounting clip; 11. Mounting ring; 12. Assembly block; 13. Fixing bolt; 14. Mounting base; 15. Fastener; 16. Second dustproof net. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] Please see Figure 1-4 This utility model provides an embodiment of a VPX chassis cooling structure, including a cooling chip 2, a chassis shell 4 mounted on the outside of the cooling chip 2, an installation groove 3 inside the chassis shell 4, a copper-aluminum cooling block 1 mounted on the left side of the cooling chip 2, a heat dissipation fin 6 mounted on the right side of the cooling chip 2, and a cooling fan 7 mounted on the right side of the heat dissipation fin 6. Fixing blocks 5 are provided at both the upper and lower ends of the heat dissipation fin 6, and fixing bolts 13 are installed inside the fixing blocks 5. A connecting block 9 is fixed to one end of each fixing block 5, and the connecting block 9 has a flexible internal structure. The heat sink fin 6 is equipped with a mounting ring 11. Assembly blocks 12 are fixed at both the upper and lower ends of the heat sink fin 6, and mounting blocks 10 are installed on one side of each assembly block 12. The mounting ring 11 and the mounting blocks 10 are compatible and form a locking structure, which facilitates the installation and disassembly of the heat dissipation structure and makes maintenance more convenient. There are four sets of assembly blocks 12, which are symmetrically distributed about the central axis of the heat sink fin 6, so that the heat dissipation structure is stably installed inside the chassis shell 4 and the installation effect is better.
[0023] Specifically, such as Figure 1 and Figure 2 As shown, to install the heat dissipation structure, first, snap the heat dissipation structure into the mounting slot 3 inside the chassis shell 4. Then, flip the mounting rings 11 at both ends in sequence so that they engage with the corresponding mounting blocks 10. This will install the heat dissipation structure inside the chassis shell 4. To disassemble, flip the mounting rings 11 in the opposite direction to detach them from the outside of the mounting blocks 10. Then, pull the heat dissipation structure to one end to move it out of the mounting slot 3 inside the chassis shell 4.
[0024] The cooling fan 7 has mounting bases 14 fixed at both the upper and lower ends of the front end, and a first dustproof net 8 is installed inside the mounting base 14. The cross-section of the first dustproof net 8 is smaller than the cross-section of the mounting base 14. The first dustproof net 8 and the mounting base 14 form a sliding structure, which makes it easy to disassemble and maintain the first dustproof net 8 and make it more convenient to use.
[0025] Specifically, such as Figure 1 and Figure 3 As shown, the first dustproof net 8 is installed inside the mounting base 14 to protect the cooling fan 7 from dust. After a period of time, the first dustproof net 8 can be moved to one side by sliding inside the mounting base 14 to be removed from the front end of the cooling fan 7 for cleaning. After cleaning, the first dustproof net 8 is aligned with the mounting base 14 and snapped in place, so that the first dustproof net 8 is installed and can continue to be used for dust protection.
[0026] The front and rear ends of the heat dissipation fins 6 are fixed with a second dustproof net 16. The interior of the second dustproof net 16 is equipped with a fixing member 15. There are several fixing members 15, and the several fixing members 15 are symmetrically distributed about the central axis of the second dustproof net 16, so that the second dustproof net 16 is stably installed at both ends of the heat dissipation fins 6.
[0027] Specifically, such as Figure 4 As shown, the second dustproof net 16 is installed at both ends of the heat dissipation fin 6 by the fastener 15 to protect the heat dissipation fin 6 from dust, so as to prevent external dust from falling on the top of the heat dissipation fin 6 and affecting the heat dissipation effect of the heat dissipation fin 6.
[0028] Working principle: When using this utility model, first install the heat dissipation structure in the mounting groove 3 inside the chassis shell 4. Then, flip the mounting rings 11 at the top and bottom ends in sequence so that they engage with the corresponding mounting blocks 10. Thus, the heat dissipation structure can be installed inside the chassis shell 4. During installation, it is necessary to ensure that the copper-aluminum heat conduction block 1 is in contact with the heat-generating element of the VPX chassis. Then, the copper-aluminum heat conduction block 1 transfers the cooling energy of the cooling chip 2 to the heat-generating element to cool it down. At the same time, the heat dissipation fins 6 conduct the heat generated by the cooling chip 2 during operation and quickly dissipate it through the turned-on cooling fan 7 to cool the VPX chassis. During the cooling process, the first dustproof net 8 is installed inside the mounting base 14 to protect the cooling fan 7 from dust, and the second dustproof net 16 is installed at both ends of the cooling fins 6 to protect the cooling fins 6 from dust.
[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A heat dissipation structure for a VPX chassis, comprising a cooling pad (2), characterized in that: The cooling chip (2) is externally mounted with a housing shell (4), and the housing shell (4) is internally provided with a mounting groove (3). A copper-aluminum heat-conducting block (1) is mounted on the left side of the cooling chip (2), and a heat dissipation fin (6) is mounted on the right side of the cooling chip (2). A heat dissipation fan (7) is mounted on the right side of the heat dissipation fin (6). Fixing blocks (5) are provided at both the upper and lower ends of the heat dissipation fin (6), and fixing bolts (13) are installed inside the fixing blocks (5). A connecting block (9) is fixed at one end of each fixing block (5), and a mounting ring (11) is movably provided inside the connecting block (9). Assembly blocks (12) are fixed at both the upper and lower ends of the heat dissipation fin (6), and a mounting clip (10) is installed on one side of each assembly block (12).
2. The heat dissipation structure of a VPX chassis according to claim 1, characterized in that: The mounting ring (11) and the mounting block (10) are compatible with each other, and the mounting ring (11) and the mounting block (10) form a locking structure.
3. The heat dissipation structure of a VPX chassis according to claim 1, characterized in that: The assembly block (12) is provided in four groups, and the four groups of assembly blocks (12) are symmetrically distributed about the central axis of the heat dissipation fins (6).
4. The heat dissipation structure of a VPX chassis according to claim 1, characterized in that: The cooling fan (7) has mounting bases (14) fixed at both the upper and lower ends of its front end, and a first dustproof net (8) is installed inside the mounting base (14).
5. The heat dissipation structure of a VPX chassis according to claim 4, characterized in that: The cross-section of the first dustproof net (8) is smaller than the cross-section of the mounting base (14), and a sliding structure is formed between the first dustproof net (8) and the mounting base (14).
6. The heat dissipation structure of a VPX chassis according to claim 1, characterized in that: The front and rear ends of the heat dissipation fins (6) are each fixed with a second dustproof net (16), and the interior of the second dustproof net (16) is equipped with a fastener (15).
7. The heat dissipation structure of a VPX chassis according to claim 6, characterized in that: The fasteners (15) are provided in a plurality of units, and the plurality of fasteners (15) are symmetrically distributed about the central axis of the second dustproof net (16).