A heat dissipation device for underwater instrument

Abstract

The present invention relates to an underwater instrument heat dissipation device in the field of marine engineering technology, which is placed in an underwater pressure-resistant cavity and comprises a combined main body seat, which is composed of a pair of support frames at both ends and a pair of heat dissipation plates at both sides; the outer wall of the support frame is provided with a pair of symmetrically distributed side heat dissipation arc surfaces coated with a heat dissipation coating, and a gap is left between the side heat dissipation arc surfaces and the inner wall of the pressure-resistant cavity, the outer wall of the heat dissipation plate is arranged as an outer heat dissipation arc surface coated with a heat dissipation coating, and the inner wall of the heat dissipation plate is installed with a heating component; a pair of heat dissipation plates can be arranged laterally adjustable and the adjustment directions are opposite, and they are respectively movably matched with the two side parts of all the support frames; wherein, during the process of being installed in the pressure-resistant cavity, the two heat dissipation plates are attached to the two support frames so that a gap is left between the two outer heat dissipation arc surfaces and the inner wall of the pressure-resistant cavity to avoid scraping off the heat dissipation coating; when the installation into the pressure-resistant cavity is completed, the two outer heat dissipation arc surfaces are attached to the inner wall of the pressure-resistant cavity for contact heat conduction.

Description

Technical Field

[0001] The invention relates to the technical field of marine engineering, in particular to an underwater instrument heat dissipation device. Background Art

[0002] In the prior art, because underwater high-heat-generating devices are sealed in a pressure-resistant cavity, the thermal resistance between them and water often determines their operating temperature. When the heat-generating power is too large, insulating heat-dissipating liquid can be filled in the sealed cavity to help dissipate heat, but this also brings about the problem of the protected device being dissolved by the heat-dissipating liquid, and the difficulty of maintenance is also increased. In the solution without using heat-dissipating liquid, the contact thermal resistance between the radiator and the inner wall of the pressure-resistant cavity accounts for a large proportion of the total thermal resistance. There are two ways to reduce the contact thermal resistance: increasing the contact stress and applying the heat-dissipating medium. However, the uncontrollable method of increasing the contact stress will cause the heat dissipating device to be unable to be placed in the pressure-resistant cavity. The uncontrollable method of increasing the contact stress will also cause the applied heat-dissipating medium to be scraped off by the inner wall of the pressure-resistant cavity during the disassembly and assembly process, and the effect of reducing the contact thermal resistance cannot be achieved. Summary of the invention

[0003] The purpose of the present invention is to provide an underwater instrument heat dissipation device, which can effectively reduce the thermal resistance between the heat dissipation arc surface and the inner wall of the pressure-resistant cavity, avoid the heat dissipation coating of the heat dissipation arc surface and the inner wall of the pressure-resistant cavity from being scraped off due to mutual friction between the heat dissipation coating of the heat dissipation arc surface and the inner wall of the pressure-resistant cavity during installation, and can be used in heat dissipation occasions of underwater instruments with high hot water generation, thereby improving the reliability of underwater instruments.

[0004] The object of the present invention is achieved as follows: an underwater instrument heat dissipation device is placed in an underwater pressure-resistant cavity, comprising a combined main body seat, the combined main body seat is composed of a pair of support frames at both ends and a pair of heat dissipation plates at both sides, and constitutes a hollow structure that penetrates laterally, and the support frames and heat dissipation plates are both heat-conducting parts;

[0005] The outer side wall of the support frame is provided with a pair of symmetrically distributed side heat dissipation arc surfaces coated with a heat dissipation coating, the outer side wall of the heat dissipation plate is provided with an outer heat dissipation arc surface coated with a heat dissipation coating, the inner side wall of the heat dissipation plate is provided with a heat-generating component, all the side heat dissipation arc surfaces and the outer heat dissipation arc surfaces are arched outwards to form the outer side wall of the combined main body seat, and a gap is left between the side heat dissipation arc surface and the inner wall of the pressure-resistant cavity;

[0006] The above-mentioned pair of heat dissipation plates can be arranged to be laterally adjustable and the adjustment directions are opposite, and they can be flexibly cooperated with the two side parts of all the support frames respectively; wherein, during the process of being installed into the pressure-resistant cavity, the two heat dissipation plates fit the two support frames so that a gap is left between the two outer heat dissipation arc surfaces and the inner wall of the pressure-resistant cavity; when the installation into the pressure-resistant cavity is completed, the two outer heat dissipation arc surfaces fit the inner wall of the pressure-resistant cavity.

[0007] Furthermore, the inner wall of the heat sink is set as an inner mounting plane and connected to the outer heat sink arc surface, and the outer wall of the support frame is provided with a pair of symmetrically distributed support planes that can respectively fit the inner mounting planes of the two heat sinks, and the two support planes of the support frame are connected to the heat sink arc surfaces on both sides.

[0008] Furthermore, each supporting plane of the support frame is provided with a pair of guide columns extending outwardly, and the heat sink is provided with guide holes corresponding to the guide columns for movably cooperating with the guide columns, and the extension direction of the guide columns and guide holes is parallel to the adjustment direction of the heat sink.

[0009] Furthermore, a telescopic frame and a plurality of springs are provided in the hollow cavity of the combined main body seat, the springs are telescopically arranged along the axial direction of the combined main body seat, the telescopic frame extends along the axial direction of the combined main body seat, one end of the telescopic frame is connected to one of the support frames through a spring, and the other end of the telescopic frame movably passes through the other support frame and is partially exposed; both sides of the telescopic frame are movably connected with connecting rod groups, the moving direction of the connecting rod groups is adapted to the moving direction of the heat sink, and the inner side wall of the heat sink is provided with a heat sink hinge seat movably connected to the connecting rod group, and when the telescopic frame is telescoped along the axial direction of the combined main body seat, the two heat sinks are driven to perform opposite offset adjustments through the connecting rod groups on both sides.

[0010] Furthermore, a plurality of heat sink hinge seats are arranged on the inner side wall of each heat sink, and each connecting rod group is provided with a plurality of rotating rods corresponding to the heat sink hinge seats one by one, and the telescopic frame is rotatably connected to the heat sink hinge seats via the rotating rods.

[0011] Furthermore, at least two connecting rods are provided in the hollow cavity of the combined main body seat, and the two ends of the connecting rods are respectively fixedly connected to two support frames. The connecting rods extend axially along the combined main body seat, and the telescopic frame is provided with guide sleeves that correspond one-to-one with the connecting rods and are slidably mounted on the connecting rods.

[0012] Furthermore, a limit seat is provided on the telescopic frame near its exposed position, and the limit seat is located in the hollow cavity of the combined main body seat. Before being installed in the pressure-resistant cavity, the limit seat is subjected to the elastic force of the spring to resist the nearby support frame.

[0013] The beneficial effects of the present invention are:

[0014] 1) The design structure of the heat sink position can be controlled to ensure the contact stress between the outer heat dissipation arc surface of the heat sink and the inner wall of the pressure-resistant cavity, while avoiding the problem of difficulty in disassembly and assembly;

[0015] 2) During the installation process, the heat sink does not contact the inner wall of the pressure-resistant cavity to prevent the heat dissipation coating of the heat sink from being scraped off, thereby ensuring that the heat dissipation medium filled in the pressure-resistant cavity can achieve the expected heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the present invention.

[0017] Figure 2 It is a structural diagram of the support frame.

[0018] Figure 3 It is a schematic diagram of the structure of the heat sink.

[0019] Figure 4 It is a structural diagram of a telescopic frame.

[0020] Figure 5 It is a schematic diagram of the assembly of the heat sink and the support frame.

[0021] Figure 6 It is a schematic diagram of the present invention when it is installed into a pressure-resistant cavity.

[0022] In the figure, 1 is a support frame, 1a is a support plane, 1b is a guide column, 1c is a side heat dissipation arc surface, 2 is a heat dissipation plate, 2a is an inner mounting plane, 2b is an outer heat dissipation arc surface, 2c is a guide hole, 3 is a heat dissipation plate hinge seat, 4 is a rotating rod, 5 is a telescopic frame, 5a is a guide sleeve, 5b is a limit seat, 6 is a connecting rod, 7 is a spring, 8 is a pressure-resistant cavity, and 9 is an end cover. DETAILED DESCRIPTION

[0023] The following is combined with Figure 1-6 The present invention is further illustrated with reference to the accompanying drawings and specific embodiments.

[0024] Combination Figure 1 , 6 As shown, an underwater instrument heat dissipation device is placed in an underwater pressure-resistant cavity 8, including a combined main body seat, which is composed of a pair of support frames 1 at both ends and a pair of heat dissipation plates 2 at both sides, and forms a laterally penetrating hollow structure. The support frames 1 and the heat dissipation plates 2 are both heat-conducting parts and can be made of metal materials.

[0025] The outer wall of the support frame 1 is provided with a pair of symmetrically distributed side heat dissipation arc surfaces 1c coated with a heat dissipation coating, the outer wall of the heat dissipation plate 2 is arranged as an outer heat dissipation arc surface 2b coated with a heat dissipation coating, and the inner wall of the heat dissipation plate 2 is installed with a heating component, and all the side heat dissipation arc surfaces 1c and the outer heat dissipation arc surfaces 2b are arched outward to form the outer wall of the combined main body seat, and a gap is left between the side heat dissipation arc surface 1c and the inner wall of the pressure-resistant cavity 8 to avoid scratching with the inner wall of the pressure-resistant cavity 8 when installed in the pressure-resistant cavity 8.

[0026] The above-mentioned pair of heat dissipation plates 2 can be set to be laterally adjustable and the adjustment directions are opposite, and they are respectively movably cooperated with the two side parts of all the support frames 1; wherein, during the process of loading into the pressure-resistant cavity 8, the two heat dissipation plates 2 are attached to the two support frames 1, so that a gap is left between the two outer heat dissipation arc surfaces 2b and the inner wall of the pressure-resistant cavity 8, so as to prevent the heat dissipation coating on the two outer heat dissipation arc surfaces 2b from being scraped off by the inner wall of the pressure-resistant cavity 8 during the loading process; when the loading into the pressure-resistant cavity 8 is completed, the two outer heat dissipation arc surfaces 2b are attached to the inner wall of the pressure-resistant cavity 8 to facilitate contact heat conduction, thereby effectively reducing the thermal resistance between the outer heat dissipation arc surfaces 2b of the heat dissipation plate 2 and the inner wall of the pressure-resistant cavity 8.

[0027] Combination Figure 1 , 3 As shown, the inner wall of the heat sink 2 is set as an inner mounting plane 2a and connected to the outer heat dissipation arc surface 2b, and the outer wall of the support frame 1 is provided with a pair of symmetrically distributed support planes 1a which can respectively fit the inner mounting planes 2a of the two heat sinks 2, and the two support planes 1a of the support frame 1 are connected to the heat dissipation arc surfaces 1c on both sides.

[0028] Combination Figure 1 , 2 As shown in Figures 5 and 6, each supporting plane 1a of the supporting frame 1 is provided with a pair of guide columns 1b extending outwardly, and the heat sink 2 is provided with guide holes 2c corresponding to and movably cooperating with the guide columns 1b. The extending direction of the guide columns 1b and the guide holes 2c is parallel to the adjustment direction of the heat sink 2.

[0029] Combination Figure 1 , 6 As shown, a telescopic frame 5 and a plurality of springs 7 are provided in the hollow cavity of the combined main body seat. The spring 7 is telescopically arranged along the axial direction of the combined main body seat. The telescopic frame 5 extends along the axial direction of the combined main body seat. One end of the telescopic frame 5 is connected to one of the support frames 1 through the spring 7, and the other end of the telescopic frame 5 moves through the other support frame 1 and is partially exposed. Both sides of the telescopic frame 5 are movably connected with connecting rod groups, and the moving direction of the connecting rod groups is adapted to the moving direction of the heat sink 2. The inner side wall of the heat sink 2 is provided with a heat sink hinge seat 3 movably connected to the connecting rod group. When the telescopic frame 5 is telescoped along the axial direction of the combined main body seat, the two heat sinks 2 are driven to perform opposite offset adjustments through the connecting rod groups on both sides.

[0030] like Figure 1 , 3 As shown, a plurality of heat sink hinge seats 3 are arranged on the inner side wall of each heat sink 2, and each connecting rod group is provided with a plurality of rotating rods 4 corresponding to the heat sink hinge seats 3 one by one, and the telescopic frame 5 is rotatably connected to the heat sink hinge seats 3 through the rotating rods 4.

[0031] like Figure 1 , 4As shown, two connecting rods 6 are provided in the hollow cavity of the above-mentioned combined main body seat, and the two ends of the connecting rods 6 are respectively fixedly connected to the two support frames 1. The connecting rods 6 extend along the axial direction of the combined main body seat, and the telescopic frame 5 is provided with two guide sleeves 5a corresponding to the connecting rods 6 one by one and slidably mounted on the connecting rods 6.

[0032] like Figure 1 As shown, a limit seat 5b is provided on the telescopic frame 5 near its exposed position, and the limit seat 5b is located in the hollow cavity of the combined main body seat. Before being installed into the pressure-resistant cavity 8, the limit seat 5b is subjected to the elastic force of the spring 7 to resist the nearby support frame 1. The limit seat 5b in this embodiment is a rectangular ring-shaped part.

[0033] When this embodiment is in the installation stage: Figure 1 As shown, this is the assembly state of the device. Due to the squeezing effect of the spring 7, the telescopic frame 5 moves toward the rear support frame 1 until the limit seat 5b of the telescopic frame 5 contacts the inner wall of the rear support frame 1. At this time, the telescopic frame 5 drives all the rotating rods 4 to rotate inward so that the two heat dissipation plates 2 are simultaneously attached to the supporting plane 1a of the support frame 1, so that a gap is left between the two outer heat dissipation arc surfaces 2b and the inner wall of the pressure-resistant cavity 8 to prevent the heat dissipation coating on the two outer heat dissipation arc surfaces 2b from being scraped off by the inner wall of the pressure-resistant cavity 8 during the installation process.

[0034] When this embodiment is in the working stage: Figure 6 As shown, the assembled heat dissipation device is placed into the pressure-resistant cavity 8, and the front end cover 9 is first fixed to the front end of the pressure-resistant cavity 8 by bolts, and the front end cover 9 is fixedly connected to the front support frame 1 by bolts, and then the rear end cover 9 is used to cover the rear end of the pressure-resistant cavity 8, and the two end covers 9 are respectively against the exposed ends of the front support frame 1 and the telescopic frame 5, and under the pressure of the rear end cover 9, the telescopic frame 5 compresses the spring 7, so that all the rotating rods 4 rotate outward, so that the two heat dissipation plates 2 move outward at the same time, until the outer heat dissipation arc surfaces 2b of the two heat dissipation plates 2 fit the inner wall of the pressure-resistant cavity 8, and then the rear end cover 9 is fixed to the rear end of the pressure-resistant cavity 8 by bolts, so that the outer heat dissipation arc surfaces 2b of the two heat dissipation plates 2 always fit the inner wall of the pressure-resistant cavity 8.

[0035] The above are preferred embodiments of the present invention. A person skilled in the art may make various changes or improvements on this basis. Without departing from the general concept of the present invention, these changes or improvements should fall within the scope of protection required by the present invention.

Claims

1. An underwater instrument heat dissipation device, placed in an underwater pressure-resistant cavity (8), characterized in that: The combined main body seat comprises a pair of support frames (1) at two ends and a pair of heat dissipation plates (2) at two sides, and forms a hollow structure that penetrates laterally. The support frames (1) and the heat dissipation plates (2) are both heat-conducting parts. The outer side wall of the support frame (1) is provided with a pair of symmetrically distributed side heat dissipation arc surfaces (1c) coated with a heat dissipation coating, the outer side wall of the heat dissipation plate (2) is provided with an outer heat dissipation arc surface (2b) coated with a heat dissipation coating, and the inner side wall of the heat dissipation plate (2) is provided with a heat-generating component, and all the side heat dissipation arc surfaces (1c) and the outer heat dissipation arc surfaces (2b) are arched outwards to form the outer side wall of the combined main body seat, and a gap is left between the side heat dissipation arc surfaces (1c) and the inner wall of the pressure-resistant cavity (8); The pair of heat dissipation plates (2) can be arranged to be adjusted laterally and in opposite directions, and are respectively movably matched with the two side parts of all the support frames (1); wherein, during the process of being installed in the pressure-resistant cavity (8), the two heat dissipation plates (2) fit the two support frames (1) so that a gap is left between the two outer heat dissipation arc surfaces (2b) and the inner wall of the pressure-resistant cavity (8); when the installation into the pressure-resistant cavity (8) is completed, the two outer heat dissipation arc surfaces (2b) fit the inner wall of the pressure-resistant cavity (8); The inner side wall of the heat sink (2) is provided as an inner mounting plane (2a) and is connected to the outer heat sink arc surface (2b); the outer side wall of the support frame (1) is provided with a pair of symmetrically distributed support planes (1a) capable of respectively fitting the inner mounting planes (2a) of the two heat sinks (2); the two support planes (1a) of the support frame (1) are connected to the heat sink arc surfaces (1c) on both sides; A telescopic frame (5) and a plurality of springs (7) are provided in the hollow cavity of the combined main body seat. The spring (7) is arranged to be telescopically arranged along the axial direction of the combined main body seat. The telescopic frame (5) extends along the axial direction of the combined main body seat. One end of the telescopic frame (5) is connected to one of the support frames (1) through the spring (7). The other end of the telescopic frame (5) movably passes through the other support frame (1) and is partially exposed. Both sides of the telescopic frame (5) are movably connected with connecting rod groups. The moving direction of the connecting rod group is compatible with the moving direction of the heat sink (2). The inner side wall of the heat sink (2) is provided with a heat sink hinge seat (3) movably connected to the connecting rod group. When the telescopic frame (5) is telescopically extended along the axial direction of the combined main body seat, the two heat sinks (2) are driven by the connecting rod groups on both sides to perform opposite offset adjustment.

2. The underwater instrument heat dissipation device according to claim 1, characterized in that: Each supporting plane (1a) of the supporting frame (1) is provided with a pair of guide columns (1b) extending outwardly, and the heat sink (2) is provided with guide holes (2c) that are movably matched with the guide columns (1b) and correspond one to one, and the extension direction of the guide columns (1b) and the guide holes (2c) is parallel to the adjustment direction of the heat sink (2).

3. The underwater instrument heat dissipation device according to claim 1, characterized in that: A plurality of heat sink hinge seats (3) are arranged on the inner side wall of each heat sink (2), and each connecting rod group is provided with a plurality of rotating rods (4) corresponding one to one with the heat sink hinge seats (3). The telescopic frame (5) is rotatably connected to the heat sink hinge seats (3) via the rotating rods (4).

4. The underwater instrument heat dissipation device according to claim 1, characterized in that: At least two connecting rods (6) are arranged in the hollow cavity of the combined main body seat, and the two ends of the connecting rods (6) are respectively fixedly connected to the two support frames (1). The connecting rods (6) extend along the axial direction of the combined main body seat, and the telescopic frame (5) is provided with a guide sleeve (5a) corresponding to the connecting rods (6) and slidably mounted on the connecting rods (6).

5. The underwater instrument heat dissipation device according to claim 1, characterized in that: A limit seat (5b) is provided on the telescopic frame (5) near its exposed position. The limit seat (5b) is located in the hollow cavity of the combined main body seat. Before being installed in the pressure-resistant cavity (8), the limit seat (5b) is subjected to the elastic force of the spring (7) to contact the nearby support frame (1).

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