Oil-free scroll vacuum pump

Abstract

The utility model relates to a vacuum pump technical field especially relates to an oil -free scroll vacuum pump. The utility model discloses: fan cover, fan, exhaust valve, fin, scroll disc, exhaust valve is fixedly installed in the center of scroll disc, and fin is sleeved on exhaust valve and is fixedly connected with scroll disc, and fan is fixedly installed on fin, and fan cover is covered in the outside of fan and is fixedly connected with fin. The upper end surface of fin is provided with a plurality of convex ribs in the circumference, and ventilation grooves are formed between the adjacent two convex ribs. The first threaded hole for fixing fan and fan cover is arranged on the convex rib. The fin is made of heat-conducting metal material, and the height of the convex rib is different according to different specifications. The problem that the heat dissipation convex rib in the prior art is arranged on the scroll disc, the heat dissipation area is fixed, the heat dissipation cannot be in time when the temperature is too high, and the scroll disc has the problems of great processing difficulty, long time consumption, high cost and the like.

Description

Technical Field

[0001] This utility model relates to the field of vacuum pump technology, and in particular to an oil-free vortex vacuum pump. Background Technology

[0002] Oil-free scroll vacuum pumps generate a large amount of heat during operation, causing a rapid rise in the pump body temperature. Therefore, a cooling device is needed to dissipate heat. Currently, most oil-free vacuum pumps on the market are equipped with a cooling system, which typically includes a fan and a fan cover. The upper surface of the scroll plate of the oil-free scroll vacuum pump has circumferentially circumferentially shaped heat dissipation ribs, the fan is fixed to these ribs, and the fan cover covers the fan. While this structure is simple, the heat dissipation ribs are located on the upper surface of the scroll plate, resulting in a fixed heat dissipation area. When the temperature is too high, heat dissipation cannot be achieved quickly enough, requiring larger ribs to exchange heat with the air. Furthermore, the heat dissipation ribs are difficult and time-consuming to manufacture, leading to high costs for the scroll plate and high replacement costs.

[0003] In view of the problems existing in the above-mentioned existing technologies, it is necessary to research and design a new type of oil-free vortex vacuum pump to overcome the problems existing in the existing technologies. Summary of the Invention

[0004] The existing technology, which involves heat dissipation ribs on a scroll plate with a fixed heat dissipation area, suffers from problems such as insufficient heat dissipation at high temperatures, high processing difficulty, long processing time, and high cost. This invention addresses these issues by providing an oil-free scroll vacuum pump. The main solution is to assemble separate and replaceable heat sinks and exhaust valves onto the scroll plate, allowing for the replacement of different heat sinks according to different temperatures, thereby resolving the various problems existing in the prior art.

[0005] The technical means adopted in this utility model are as follows: An oil-free scroll vacuum pump includes: a fan cover, a fan, an exhaust valve, a heat sink, and a scroll plate; Furthermore, the exhaust valve is fixedly mounted at the center of the scroll plate; Furthermore, the heat sink is fitted onto the exhaust valve and fixedly connected to the scroll plate; Furthermore, the fan is fixedly mounted on the heatsink; Furthermore, a fan cover is placed over the outside of the fan and is fixedly connected to the heat sink.

[0006] Furthermore, thermally conductive silicone grease is evenly applied to the upper surface of the vortex disk.

[0007] Furthermore, the upper end face of the scroll plate is provided with a second threaded hole for fixing the heat sink and a third threaded hole for fixing the exhaust valve.

[0008] Furthermore, multiple raised ribs are evenly distributed around the upper surface of the heat sink, and ventilation grooves are formed between two adjacent raised ribs.

[0009] Furthermore, the rib is provided with a first threaded hole for fixing the fan and fan cover.

[0010] Furthermore, the heat sink is made of thermally conductive metal material, and the height of its ribs varies depending on the specifications.

[0011] Furthermore, the fan cover is equipped with multiple ventilation openings.

[0012] Compared with the prior art, the present invention has the following advantages: 1. The oil-free scroll vacuum pump provided by this utility model adopts an independent heat sink mounted on the scroll plate, which reduces the processing difficulty and saves processing costs and processing time. 2. The oil-free vortex vacuum pump provided by this utility model adopts independent heat sinks. The heat sinks with heat dissipation ribs of different heights can be replaced according to different ambient temperature requirements to improve heat dissipation capacity and make it more convenient and practical. 3. The oil-free scroll vacuum pump provided by this utility model adopts a separate structure of scroll plate and heat sink, which allows for the replacement of damaged scroll plate and heat sink separately, reducing replacement and maintenance costs.

[0013] In summary, the technical solution of this utility model solves the problems in the prior art where the heat dissipation ribs are set on the scroll plate, the heat dissipation area is fixed, the heat dissipation cannot be dissipated in time when the temperature is too high, and the scroll plate is difficult to process, time-consuming, and expensive. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is an exploded view of the present invention; Figure 2 This is a comparison diagram of heat sinks with raised ribs of different heights.

[0016] In the diagram: 10, fan cover; 20, fan; 30, exhaust valve; 40, heat sink; 41, rib; 42, first threaded hole; 50, thermal grease; 60, scroll plate; 61, second threaded hole; 62, third threaded hole. Detailed Implementation

[0017] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this utility model or its application or use. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0019] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to the present invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0020] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0021] In the description of this utility model, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0022] For ease of description, spatial relative terms such as "above," "over," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation besides the orientation of the device as described in the figures. For example, if the device in the figures is inverted, a device described as "above" or "above" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0023] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0024] As shown in the figure, this utility model provides an oil-free scroll vacuum pump comprising: a fan cover 10, a fan 20, an exhaust valve 30, a heat sink 40, and a scroll plate 60; the exhaust valve 30 is fixedly mounted at the center of the scroll plate 60; the heat sink 40 is fitted onto the exhaust valve 30 and fixedly connected to the scroll plate 60; the fan 20 is fixedly mounted onto the heat sink 40; the fan cover 10 covers the outside of the fan 20 and is fixedly connected to the heat sink 40.

[0025] Thermal grease 50 is evenly applied to the upper surface of the vortex disk 60.

[0026] The upper end face of the scroll plate 60 is provided with a second threaded hole 61 for fixing the heat sink 40 and a third threaded hole 62 for fixing the exhaust valve 30.

[0027] Multiple ribs 41 are evenly distributed around the upper end face of the heat sink 40, and ventilation grooves are formed between two adjacent ribs 41.

[0028] The protruding rib 41 is provided with a first threaded hole 42 for fixing the fan 20 and the fan cover 10.

[0029] The heat sink 40 is made of thermally conductive metal material, and the height of its ribs 41 varies depending on the specifications.

[0030] The fan cover 10 has multiple ventilation openings 11.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. An oil-free vortex vacuum pump, characterized in that: The oil-free vortex vacuum pump includes: a fan cover (10), a fan (20), an exhaust valve (30), a heat sink (40), and a vortex disk (60). The exhaust valve (30) is fixedly mounted at the center of the scroll plate (60); The heat sink (40) is fitted onto the exhaust valve (30) and fixedly connected to the scroll plate (60); The fan (20) is fixedly mounted on the heat sink (40); The fan cover (10) covers the outside of the fan (20) and is fixedly connected to the heat sink (40).

2. The oil-free scroll vacuum pump according to claim 1, characterized in that: Thermal grease (50) is evenly applied to the upper surface of the vortex disk (60).

3. The oil-free vortex vacuum pump according to claim 1, characterized in that: The upper end face of the vortex disk (60) is provided with a second threaded hole (61) for fixing the heat sink (40) and a third threaded hole (62) for fixing the exhaust valve (30).

4. The oil-free scroll vacuum pump according to claim 1, characterized in that: The heat sink (40) has multiple ribs (41) evenly distributed around its upper surface, and ventilation grooves are formed between two adjacent ribs (41).

5. The oil-free scroll vacuum pump according to claim 4, characterized in that: The rib (41) is provided with a first threaded hole (42) for fixing the fan (20) and the fan cover (10).

6. The oil-free scroll vacuum pump according to claim 4, characterized in that: The heat sink (40) is made of thermally conductive metal material, and the height of its ribs (41) varies depending on the specifications.

7. The oil-free scroll vacuum pump according to claim 1, characterized in that: The fan cover (10) is provided with multiple ventilation openings (11).

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