CN211550110U

CN211550110U - Heat radiator for diffusion pump

Info

Publication number: CN211550110U
Application number: CN201922203285.XU
Authority: CN
Inventors: 汪国强
Original assignee: Dumasi Scientific Instruments Jiangsu Co ltd
Current assignee: Dumasi Scientific Instruments Jiangsu Co ltd
Priority date: 2019-12-11
Filing date: 2019-12-11
Publication date: 2020-09-22
Anticipated expiration: 2029-12-11

Abstract

The utility model discloses a heat abstractor of diffusion pump, the heat sink subassembly of ring cover on the diffusion pump, and the fan of linking to each other with this heat sink subassembly front side is fixed, heat sink subassembly includes a plurality of fin and locates the inside a plurality of aviation baffle of fin, the aviation baffle can with the fan rotates and the air current that produces leads to diffusion pump rear side. The air deflector is arranged, so that the heat dissipation airflow at the front end is guided to the rear end, and the heat dissipation is efficiently accelerated. The radiating fins are provided with outer side blocking pieces, and form an air duct with the outer wall of the diffusion pump, so that heat on two sides is further taken away. Through setting up other circuit control, make the fan prolong operating time, make after the shutdown of evaporator system, can continue to dispel the heat for the diffusion pump, prevent that oil from oxidizing under the non-vacuum condition under high temperature.

Description

Heat radiator for diffusion pump

Technical Field

The utility model relates to a heat abstractor of diffusion pump.

Background

The diffusion pump is used at the tail of the evaporator, the vacuum degree of the evaporator is improved through oil vapor, the temperature of the surface of the pump is high, and heat dissipation is needed in time. The prior art is that the fan is arranged on the radiating fin, the heat is radiated by a single side in a single direction, and only one side of the fan can be cooled in the circumferential direction of the pump, so that the heat conduction is not fast facilitated.

In addition, after the evaporation equipment is powered off, the whole device is closed, the oil in the diffusion pump is still in a high-temperature state of 300 ℃, and the oil is oxidized in a non-vacuum environment, so that the use effect is lost.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the above problem, provide a heat abstractor of diffusion pump to improve its electrical system.

A heat dissipation device of a diffusion pump is characterized by comprising a heat dissipation plate assembly sleeved on the diffusion pump in a sleeving mode, and a fan fixedly connected with the front side of the heat dissipation plate assembly, wherein the heat dissipation plate assembly comprises a plurality of heat dissipation plates and a plurality of air deflectors arranged inside the heat dissipation plates, and the air deflectors can guide airflow generated by rotation of the fan to the rear side of the diffusion pump.

Furthermore, two sides of each radiating fin are provided with a baffle plate, two adjacent radiating fins are welded with each other, and each two adjacent baffle plates and the diffusion pump form an air channel.

Furthermore, the air deflector is positioned at the rear side of the air duct and forms a certain included angle with the air duct.

Furthermore, 2 air deflectors are arranged, each air deflector is respectively adjacent to the air channels on the two sides, and the plane where the air deflectors are located and the horizontal plane form an included angle of 15-75 degrees.

Furthermore, the top of the air deflector is formed by folding and extending the radiating fins downwards.

Furthermore, the air deflector is attached to the plurality of radiating fins.

Furthermore, one side of the air deflector is attached to the diffusion pump.

Furthermore, the diffusion pump is connected with an electric control system, the electric control system comprises a starting circuit and a shutdown circuit, the shutdown circuit comprises a time relay, and the time relay is used for prolonging the working time of the diffusion pump fan.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Has the advantages that:

1. the air deflector is arranged, so that the heat dissipation airflow at the front end is guided to the rear end, and the heat dissipation is efficiently accelerated.

2. The radiating fins are provided with outer side blocking pieces, and form an air duct with the outer wall of the diffusion pump, so that heat on two sides is further taken away.

3. Through setting up other circuit control, make the fan prolong operating time, make after the shutdown of evaporator system, can continue to dispel the heat for the diffusion pump, prevent that oil from oxidizing under the non-vacuum condition under high temperature.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a general schematic view of a heat sink for a diffusion pump;

FIG. 2 is a partial schematic view of a heat sink of a diffusion pump;

FIG. 3 is a schematic view of a fin assembly of a heat sink of the diffusion pump;

fig. 4 is a schematic circuit diagram of a heat sink of a diffusion pump.

Reference numerals:

1-a diffusion pump; 2-a heat sink assembly; 21-a heat sink; 22-a wind deflector; 23-a baffle plate; 3-a fan; 4-air duct.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1

Referring to fig. 1 to 3, the heat dissipation device of the diffusion pump of the present embodiment includes a heat dissipation plate assembly 2 sleeved around the diffusion pump 1, and a fan 3 fixedly connected to the front side of the heat dissipation plate assembly 2, wherein the heat dissipation plate assembly 2 includes a plurality of heat dissipation plates 21 and a plurality of air deflectors 22 disposed inside the heat dissipation plates, and the air deflectors 22 can guide an air flow generated by the rotation of the fan 3 to the rear side of the diffusion pump 1. For uniformity of heat dissipation, the air flow blown by the fan is guided to the rear side of the fan by the air guide plate 22.

Specifically, two sides of each cooling fin 21 are provided with blocking pieces 23, two adjacent cooling fins 21 are welded to each other, and each two adjacent blocking pieces 23 and the side wall of the diffusion pump 1 form the air duct 4.

Specifically, the air deflector 22 is located at the rear side of the air duct 4, and forms a certain included angle with the air duct 4.

In this embodiment, there are 2 air deflectors 22, each air deflector 22 is adjacent to the air ducts 4 on two sides, and the plane on which the air deflectors are located forms an included angle of 15-75 degrees with the horizontal plane.

In the present embodiment, the air guiding plate 22 is formed by folding and extending the top of the heat dissipating fin 21 downward.

More specifically, the air deflector 22 is attached to the plurality of fins 21, and the air flow is blown to the air deflector and guided to the rear side of the diffusion pump along the air duct.

In another embodiment, the air deflector 22 is attached to the diffusion pump 1, the two side baffles 23 and the diffusion pump form an air duct 4, and the air flow blows to the air deflector along the air duct 4 to take away heat.

In addition, as shown in fig. 4, the fan 3 is connected to an electronic control system, which includes a power-on circuit and a power-off circuit, and the power-off circuit includes a time relay for extending the operating time of the diffusion pump fan.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. The heat dissipation device of the diffusion pump is characterized by comprising a heat dissipation fin component (2) sleeved on the diffusion pump (1) in a sleeved mode and a fan (3) fixedly connected with the front side of the heat dissipation fin component (2), wherein the heat dissipation fin component (2) comprises a plurality of heat dissipation fins (21) and a plurality of air guide plates (22) arranged inside the heat dissipation fins (21), and the air guide plates (22) can guide airflow generated by rotation of the fan (3) to the rear side of the diffusion pump (1).

2. The heat sink for a diffusion pump according to claim 1, wherein each of the heat dissipating fins (21) is provided with a baffle (23) at both sides thereof, adjacent two of the heat dissipating fins (21) are welded to each other, and the plurality of welded baffles (23) form the air passage (4) with the diffusion pump (1).

3. The heat sink of claim 2, wherein the air deflector (22) is located at the rear side of the air duct (4) and forms an angle with the air duct (4).

4. The heat dissipation device of claim 3, wherein there are 2 air deflectors (22), each air deflector (22) is adjacent to each air duct (4) on two sides, and an included angle between a plane of the air deflector (22) and a horizontal plane is 15-75 degrees.

5. The heat sink of a diffusion pump as claimed in claim 4, wherein the air deflector (22) is formed by folding the top of the heat sink (21) downward.

6. The heat sink of claim 5, wherein the air deflector (22) is attached to a plurality of fins (21).

7. The heat sink for a diffusion pump according to claim 5, wherein one side of the air deflector (22) is attached to the diffusion pump (1).

8. A heat sink with a diffusion pump according to any of claims 1 to 7, wherein the diffusion pump (1) is connected to an electronic control system, the electronic control system comprising a power-on circuit and a power-off circuit, the power-off circuit comprising a time relay for extending the operating time of the fan (3) of the diffusion pump.