Roots vacuum pump convenient for heat dissipation

Abstract

The roots vacuum pump convenient to dissipate heat comprises a pump body shell, a cavity is formed in the pump body shell, a rotor is arranged in the cavity in an attached mode, and a first heat dissipation pipeline and a second heat dissipation pipeline are arranged in the pump body shell and located on the upper side and the lower side of the cavity respectively. One end of the first heat dissipation pipeline is provided with an injection port and a first connecting port in a through mode, the other end of the first heat dissipation pipeline is provided with a second connecting port in a through mode, and one end of the second heat dissipation pipeline is provided with a backflow port and a third connecting port in a through mode. And a fourth connecting port is formed in the other end of the second heat dissipation pipeline in a penetrating manner. The heat dissipation pump is simple in structure and convenient to use, the heat dissipation cavity holes which are connected in the through mode are formed in the pump body shell, the heat dissipation pipes and the heat dissipation fins are connected to the outer portions of the heat dissipation cavity holes in the through mode, and therefore the heat dissipation efficiency of the interior of the cavity can be further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of Roots vacuum pumps, in particular to a Roots vacuum pump which is convenient for heat dissipation. Background Art

[0002] A Roots vacuum pump is a variable displacement vacuum pump that has two blade-shaped rotors rotating synchronously in opposite directions, and a small gap between the rotors and between the rotors and the inner wall of the pump casing, but does not touch each other. Its structure and working principle are similar to those of a Roots blower. A Roots vacuum pump generates a lot of heat during operation, and usually many heat sinks are set on the surface of the Roots vacuum pump to dissipate heat from the Roots vacuum pump. However, the heat sinks of the existing Roots vacuum pump casing are usually integrated, which is not easy to replace when damaged, and the maintenance cost is high. At the same time, after long-term use, it is easy to cause a lot of dirt to accumulate in the gaps between the heat sinks, which is more cumbersome to clean. Therefore, it will further affect the speed at which the heat inside the vacuum pump is transferred to the heat sink, resulting in low heat dissipation efficiency and low practicality. Utility Model Content

[0003] The utility model aims to provide a Roots vacuum pump which is convenient for heat dissipation, so as to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a Roots vacuum pump that is easy to dissipate heat, comprising a pump body shell, a cavity is opened inside the pump body shell, a rotor is placed in close contact inside the cavity, a first heat dissipation pipe and a second heat dissipation pipe are respectively arranged inside the pump body shell and on the upper and lower sides of the cavity, one end of the first heat dissipation pipe is respectively through-arranged with an injection port and a first connection port, the other end of the first heat dissipation pipe is through-arranged with a second connection port, one end of the second heat dissipation pipe is respectively through-arranged with a reflux port and a third connection port, the other end of the second heat dissipation pipe is through-arranged with a fourth connection port, and the first connection port, the third connection port, the second connection port, and the fourth connection port are all through-connected with a heat dissipation component.

[0005] Preferably, the heat dissipation assembly is composed of a plurality of heat sinks, heat dissipation tubes and fixing screws, wherein a card slot is provided at the bottom center of the heat sink, and two mounting holes are provided on both sides of the card slot.

[0006] Preferably, heat-conducting blocks are fixedly provided on both sides of the bottom of the heat sink, wherein support bars are fixedly provided on both side outer walls of the pump housing, and a plurality of mounting grooves are correspondingly provided on the support bars.

[0007] Preferably, slots are vertically opened on both the upper and lower sides of the mounting slot, wherein the heat sink is embedded in the mounting slot and the slot through a card slot and a heat conducting block respectively, and fixing screws are screwed and pressed tightly in the mounting slot.

[0008] Preferably, the heat dissipation pipe is a metal hollow tube made of heat-conducting material, wherein both ends of the heat dissipation pipe are respectively installed in the upper and lower connecting ports in a through-type manner, and the heat dissipation pipe is fixedly installed on the heat sink through the mounting hole, and is arranged and installed in an S-shaped structure.

[0009] Preferably, the first heat dissipation pipe and the second heat dissipation pipe are both composed of a plurality of cavities, wherein the cavities are connected to each other in a through-type manner, and the two ends of the cavities in the first heat dissipation pipe and the second heat dissipation pipe are not connected in a through-type manner.

[0010] Preferably, the heat sink is a metal sheet made of heat dissipation material, wherein the tops of both ends of the heat sink are arranged at an angle, and the heat sink is fitted and connected to a heat pipe through a mounting hole.

[0011] Preferably, a support foot is fixedly mounted on the bottom of the pump housing, wherein the injection port and the return port are respectively connected to the output port and the input port of the cooling device through pipeline transmission.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model is provided with a support bar fixedly arranged at the outer center position of the pump body shell, wherein a plurality of installation grooves are opened on the support bar, and vertical bar-shaped slots are opened correspondingly on the upper and lower sides of the installation grooves, which not only facilitates the stable installation of the heat sinks on the pump body shell one by one, but also facilitates the replacement or cleaning of the heat sinks at a later time, thereby ensuring the heat dissipation effect of the heat sink, and at the same time a heat conduction block is arranged at the bottom of the heat sink, and the heat conduction block is inserted and placed in the slot of the shell, which facilitates the improvement of the contact area and further improves the heat dissipation efficiency, and a mounting hole is arranged on the heat sink, and a serpentine-shaped heat dissipation pipe is placed in the mounting hole, and at the same time the heat dissipation pipe is through-connected to the heat dissipation pipeline inside the pump body shell, so that the coolant can flow to take away the heat, thereby further improving the heat dissipation effect of the Roots vacuum pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall internal structure of the utility model;

[0015] Figure 2 It is a side view of the pump housing of the utility model;

[0016] Figure 3 This is a schematic diagram of the installation of the heat dissipation component of the utility model;

[0017] Figure 4 It is a top sectional view of the pump housing of the utility model;

[0018] Figure 5 It is a front view of the heat sink of the utility model.

[0019] In the figure: 1. pump body shell; 2. cavity; 21. rotor; 3. first heat dissipation pipe; 31. injection port; 32. first connection port; 33. second connection port; 4. second heat dissipation pipe; 41. return port; 42. third connection port; 43. fourth connection port; 5. heat dissipation assembly; 51. heat sink; 501. slot; 502. mounting hole; 503. heat conductive block; 52. heat dissipation pipe; 53. fixing screw; 6. support bar; 61. mounting slot; 62. slot; 7. cavity hole; 8. support foot. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-5 The utility model provides a technical solution: a Roots vacuum pump that is easy to dissipate heat, comprising a pump shell 1, a cavity 2 is opened inside the pump shell 1, a rotor 21 is placed in the cavity 2, a first heat dissipation pipeline 3 and a second heat dissipation pipeline 4 are respectively arranged on the upper and lower sides of the cavity 2 inside the pump shell 1, one end of the first heat dissipation pipeline 3 is respectively provided with an injection port 31 and a first connection port 32, the other end of the first heat dissipation pipeline 3 is respectively provided with a second connection port 33, one end of the second heat dissipation pipeline 4 is respectively provided with a reflux port 41 and a third connection port 42, the other end of the second heat dissipation pipeline 4 is provided with a fourth connection port 43, wherein the first heat dissipation pipeline 3 and the second heat dissipation pipeline 4 are both composed of a plurality of cavities 7, wherein the cavities 7 are connected to each other in a through-type manner, and the two ends of the cavities 7 in the first heat dissipation pipeline 3 and the second heat dissipation pipeline 4 are not connected in a through-type manner, so as to facilitate the flow of cooling liquid inside the pump shell 1.

[0022] A support foot 8 is fixedly installed at the bottom of the pump body shell 1, wherein the injection port 31 and the return port 41 are respectively connected to the output port and the input port of the cooling device through pipeline transmission, so that the support foot 8 cannot be used to stably install and support the pump body shell 1, and at the same time, the cooling device can be used to drive the coolant to be transmitted from the injection port 31 and the return port 41.

[0023] The first connection port 32, the third connection port 42, the second connection port 33, and the fourth connection port 43 are all through-connected with the heat dissipation component 5, wherein the heat dissipation component 5 is composed of a plurality of heat sinks 51, a heat dissipation pipe 52 and a fixing screw 53, wherein a card slot 501 is arranged at the bottom center position of the heat sink 51, and two mounting holes 502 are arranged on both sides of the card slot 501, and the heat dissipation pipe 52 is a metal hollow tube made of heat-conducting material, wherein the two ends of the heat dissipation pipe 52 are respectively through-mounted in the upper and lower connection ports, and the heat dissipation pipe 52 is fixedly mounted on the heat sink 51 through the mounting hole 502, and is arranged and installed in an S-shaped structure, so that the heat dissipation pipe 52 can be better fitted to the heat sink 51 to improve the heat dissipation efficiency.

[0024] Heat conducting blocks 503 are fixedly provided on both sides of the bottom of the heat sink 51, wherein support bars 6 are fixedly provided on the outer walls on both sides of the pump body shell 1, and a number of mounting grooves 61 are correspondingly opened on the support bars 6, wherein slots 62 are vertically opened on the upper and lower sides of the mounting groove 61, wherein the heat sink 51 is respectively embedded in the mounting groove 61 and the slot 62 through the card slot 501 and the heat conducting block 503, and a fixing screw 53 is screwed and pressed in the mounting groove 61 to facilitate the stable installation of the heat sink 51 on the pump body shell 1, and the heat sink 51 is a metal sheet of heat dissipation material, wherein the tops of both ends of the heat sink 51 are inclined, and the heat sink 51 is fitted with a heat pipe 52 through the mounting hole 502 to improve the overall aesthetics.

[0025] Working principle: When the utility model is in use, the pump body shell 1 is stably installed in the working area through the support feet 8, and the Roots vacuum pump is further assembled. At the same time, a plurality of heat sinks 51 are correspondingly installed in the installation grooves 61 on the support bar 6, and the fixing screws 53 are pressed and connected. At the same time, the heat conductive block 503 at the bottom of the heat sink 51 is embedded in the slot 62, and the heat pipe 52 is fixedly connected through the installation holes 502 in the heat sink 51. At the same time, the two ends of the heat pipe 52 are respectively connected to the first connection port 32, the third connection port 42, the second connection port 33, and the fourth connection port 43 for transmission connection. At this time, the injection port 31 and the reflux port 41 are respectively connected to the output end and the input end of the cooling device to transmit and supply the coolant. When the cooling device is working, the coolant is driven to flow, thereby flowing in the first heat dissipation pipe 3, and enters the second heat dissipation pipe 4 through the heat dissipation pipe 52 and the heat sink 51, and further flows back to the cooling device. This not only has better heat dissipation effect, but also has lower cost and richer practicality.

[0026] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A Roots vacuum pump that facilitates heat dissipation, comprising a pump housing (1), a cavity (2) being provided inside the pump housing (1), a rotor (21) being closely placed inside the cavity (2), Features: A first heat dissipation pipe (3) and a second heat dissipation pipe (4) are respectively arranged inside the pump housing (1) and on the upper and lower sides of the cavity (2); one end of the first heat dissipation pipe (3) is respectively provided with an injection port (31) and a first connection port (32); the other end of the first heat dissipation pipe (3) is respectively provided with a second connection port (33); one end of the second heat dissipation pipe (4) is respectively provided with a return port (41) and a third connection port (42); the other end of the second heat dissipation pipe (4) is provided with a fourth connection port (43); and the first connection port (32), the third connection port (42) and the second connection port (33), the fourth connection port (43) are all connected to a heat dissipation component (5); The heat dissipation assembly (5) is composed of a plurality of heat dissipation fins (51), heat dissipation pipes (52) and fixing screws (53), wherein a slot (501) is provided at the bottom center of the heat dissipation fin (51), and two mounting holes (502) are provided on both sides of the slot (501); Heat conducting blocks (503) are fixedly arranged on both sides of the bottom of the heat sink (51), wherein support bars (6) are fixedly arranged on the outer walls of both sides of the pump housing (1), and a plurality of mounting grooves (61) are correspondingly provided on the support bars (6); Slots (62) are vertically provided on both upper and lower sides of the installation slot (61), wherein the heat sink (51) is embedded in the installation slot (61) and the slot (62) respectively through the clamping slot (501) and the heat conducting block (503), and a fixing screw (53) is screwed and pressed in the installation slot (61).

2. The Roots vacuum pump for heat dissipation according to claim 1, Features: The heat dissipation pipe (52) is a metal hollow pipe made of a heat-conducting material, wherein the two ends of the heat dissipation pipe (52) are respectively installed in the upper and lower connecting ports in a through-type manner, and the heat dissipation pipe (52) is fixedly installed on the heat sink (51) through the installation hole (502), and is installed in an S-shaped structure.

3. The Roots vacuum pump for heat dissipation according to claim 2, Features: The first heat dissipation pipe (3) and the second heat dissipation pipe (4) are both composed of a plurality of cavities (7), wherein the cavities (7) are mutually connected in a through-type manner, and the two ends of the cavities (7) in the first heat dissipation pipe (3) and the second heat dissipation pipe (4) are not connected in a through-type manner.

4. The Roots vacuum pump for heat dissipation according to claim 3, Features: The heat sink (51) is a metal sheet made of heat dissipation material, wherein the tops of both ends of the heat sink (51) are arranged in an inclined manner, and the heat sink (51) is fittedly connected to a heat pipe (52) through a mounting hole (502).

5. The Roots vacuum pump for facilitating heat dissipation according to claim 4, Features: A support foot (8) is fixedly mounted on the bottom of the pump housing (1), wherein the injection port (31) and the return port (41) are respectively connected to the output port and the input port of the cooling device through pipeline transmission.

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