TWM458469U - Vacuum pump with exhaust and energy-saving structure - Google Patents

Description

Vacuum pump with exhaust energy-saving structure

The present invention relates to a vacuum pump, and more particularly to a vacuum pump with an exhaust energy-saving structure that can reduce the exhaust load of the final rotor and effectively reduce the power consumption of the motor.

Vacuum pumping is used in the vacuum manufacturing environment by pumping gas into an air inlet and compressing the low pressure gas of the air inlet to the high pressure end exhaust port by an internal spiral rotor to create a vacuum. The state of vacuum manufacturing is closely related to the rotor. Therefore, the rotor is also called the heart of the vacuum pump. In addition to affecting the performance of the vacuum pump, it will also affect its service life and cost.

Generally, in the prior art, the vacuum pump is quite expensive in terms of the cost of electricity, and there are many reasons, and one of them is that when the rotor is compressed, the pressure closer to the exhaust portion is larger, and in order to bring the vicinity of the exhaust portion. The air is introduced and the output power of the motor needs to be increased. As a result, it takes a lot of time and power. However, in order to solve this problem, there is also a vacuum generator added to the vacuum pump. This design must be Two conduits are connected before the exhaust section, and the vacuum generator is attached to the conduit At this time, the conduit between the vacuum generator and the exhaust portion creates a closed space, and if the space occupied by the sealed space is larger, the effect of the injector is lower.

In view of this, the creators of this case have accumulated experience based on years of research, and with their own creativity and continuous attempts, developed an exhaust energy-saving structure that can effectively improve the defects mentioned in the above-mentioned prior art. Vacuum pump.

The main purpose of the present invention is to provide a vacuum pump with an exhaust energy-saving structure, by directly drilling and tapping directly from the vicinity of the exhaust portion of the casing, and then directly connecting the vacuum generator to the perforation, such that In this way, it is possible to avoid the space occupied by the vacuum generator and the exhaust portion in the prior art, so that the exhaust effect is lowered.

The vacuum pump with an exhaust energy-saving structure includes: a casing having an air intake portion formed on the casing and connected to one of the inner low pressure ends; and an exhaust portion formed On the casing, and connected to one of the inner high-pressure ends, and connected to the outside with a check valve; and an aperture formed in the vicinity of the high-voltage end of the casing; a rotor assembly is disposed in the casing, And having a high pressure section and a low pressure section, wherein the ratio of the exhaust volume of the low pressure section to the exhaust volume of the high pressure section is greater than one; a vacuum generator having: an air inlet, connectable to an external air intake a source, and a solenoid valve is disposed between the external air source; a vacuum a port is connected to the tooth hole, and a solenoid valve is disposed between the mouthpiece; and an exhaust port is outwardly connected to the atmospheric end; a motor is connected to the rotor assembly and drives it to rotate; And at least one pressure gauge is connected to the inside of the casing and can measure the internal pressure thereof.

1‧‧‧Vacuum pump with exhaust energy-saving structure

11‧‧‧Shell

111‧‧‧Intake Department

112‧‧‧Exhaust Department

1121‧‧‧ check valve

113‧‧‧Aperture

2‧‧‧Rotor assembly

21‧‧‧Low pressure section

22‧‧‧High pressure section

3‧‧‧Vacuum generator

31‧‧‧Air inlet

32‧‧‧ Vacuum port

33‧‧‧Exhaust port

34‧‧‧Solenoid valve

4‧‧‧Motor

5‧‧‧ pressure gauge

6‧‧‧High end plate

The first drawing is a schematic view of a first preferred embodiment of a vacuum pump having an exhaust energy-saving structure; the second drawing is a vacuum of the first preferred embodiment of the vacuum pump having the exhaust energy-saving structure of the present invention. Schematic diagram of the generator module; the third diagram is a schematic diagram of the vacuum generator of the first preferred embodiment of the vacuum pump with the exhaust energy-saving structure of the present invention; and the fourth diagram is the vacuum pump with the exhaust energy-saving structure of the present invention. A schematic structural view of a second preferred embodiment; and a fifth diagram is a schematic structural view of a third preferred embodiment of the vacuum pump having the exhaust energy-saving structure of the present invention.

In order to more clearly describe a vacuum pump having an exhaust energy-saving structure proposed by the present invention, a preferred embodiment of the present invention will be described in detail below with reference to the drawings.

Please refer to the first figure, the second figure and the third figure at the same time, respectively, which is a structure of a first preferred embodiment of a vacuum pump with an exhaust energy-saving structure. The schematic diagram, the vacuum generator module schematic diagram and the vacuum generator structure diagram, the vacuum pump 1 with the exhaust energy-saving structure comprises: a casing 11 having an inlet portion 111 formed on the casing 11 And a venting portion 112 is formed on the casing 11 and communicated with one of the inner high pressure ends and communicates with a check valve 1121, wherein the check valve 1121 can be combined with an exhaust muffler; and an orifice 113 is formed near the high pressure end of the casing 11; a rotor assembly 2 is disposed in the casing 11 and has a high pressure section 22 and a low pressure Section 21, wherein the ratio of the exhaust volume of the low pressure section 21 to the exhaust volume of the high pressure section 22 is greater than one; a vacuum generator 3 having: an air inlet 31 connectable to an external air source (Fig. A solenoid valve 34 is disposed between the external air intake source and the external air intake source, wherein the external air source is a high pressure gas, and a vacuum port 32 is coupled to the tooth hole 113 and is coupled to the tooth A solenoid valve 34 is disposed between the holes 113; and an exhaust port 33 is connected to the atmospheric end Wherein, the solenoid valve 34 can be replaced by a check valve or can not be installed; a motor 4 is connected to the rotor assembly 2 and drives it to rotate; and at least one pressure gauge 5 is optional. It is disposed and connected to the inside of the casing 11, and can measure the internal pressure thereof.

As described above, the component connection relationship of the first preferred embodiment has been described in detail, and the operation of the vacuum generator 3 will be further hereinafter. As shown in the third figure, since the air inlet 31 is externally connected with an air source (not shown), at this time, the high pressure gas is introduced from the air inlet 31 and then discharged from the air outlet 33 due to The vacuum port 32 is connected to the dental hole 113 near the exhaust portion 112 of the casing 11. At this time, due to the white working principle (Bernoulli's Theorem), the gas of the exhaust portion 112 is introduced from the vacuum port 32 and then exhausted. The port 33 is discharged, whereby the gas returning work of the high-pressure section rotor operation can be reduced, and the motor energy-saving effect can be achieved.

In addition, as shown in the second figure, the pressure gauge 5 can be disposed between the high pressure section and the low pressure section rotor of the casing 11, and when the pressure value is lower than a proper pressure value and the motor current is higher than an appropriate current, The electromagnetic valve 34 of the air inlet 31 and the vacuum port 32 is opened, and the two solenoid valves 34 are generally in a closed state to save the gas consumption of the vacuum generator and prevent the atmosphere from leaking back into the vacuum pump by the vacuum generator. The solenoid valve 34 of the vacuum generator 3 is turned on to activate the vacuum generator, so that the power and high-pressure gas consumption of the vacuum generator 3 and the solenoid valve 34 due to long-term opening can be reduced.

Next, please refer to the fourth figure, which is a structural schematic diagram of a second preferred embodiment of a vacuum pump having an exhaust energy-saving structure. The difference from the first preferred embodiment is that the high-pressure section 22 can be further provided with a The high pressure end plate 6 is placed and the vacuum generator 3 is placed thereon.

Finally, please refer to the fifth figure, which is a structural schematic diagram of a third preferred embodiment of the vacuum pump with the exhaust energy-saving structure, and the first preferred The difference in the embodiment is that the rotor assembly 2 can be replaced with a rotor that generally does not have a different lead.

The above has made a fairly complete disclosure of this creation. Combining the above, it can be known that the advantage of the creation department is that the vacuum generator is directly locked to the dental hole, and directly assists in eliminating the high-pressure end compressed gas that must be increased in energy consumption. In this way, it is possible to avoid the space occupied by the vacuum generator and the exhaust portion in the prior art, so that the exhaust effect is lowered.

However, the above detailed description is intended to be illustrative of the specific embodiments of the present invention, and is not intended to limit the scope of the present invention. The patent scope of this case.

1‧‧‧Vacuum pump with exhaust energy-saving structure

11‧‧‧Shell

111‧‧‧Intake Department

112‧‧‧Exhaust Department

1121‧‧‧ check valve

113‧‧‧Aperture

2‧‧‧Rotor assembly

21‧‧‧Low pressure section

22‧‧‧High pressure section

3‧‧‧Vacuum generator

31‧‧‧Air inlet

4‧‧‧Motor

5‧‧‧ pressure gauge

Claims (9)

A vacuum pump with an exhaust energy-saving structure includes: a casing having an air intake portion formed on the casing and connected to one of the inner low-pressure ends; and an exhaust portion formed On the casing, and connected to one of the inner high-pressure ends, and connected to the outside with a check valve; and an aperture formed in the vicinity of the high-voltage end of the casing; a rotor assembly is disposed in the casing, And having a high pressure section and a low pressure section, wherein the ratio of the exhaust volume of the low pressure section to the exhaust volume of the high pressure section is greater than one; a vacuum generator having: an air inlet, connectable to an external air intake a source vacuum port is connected to the tooth hole; and an exhaust port is outwardly connected to the atmospheric end; a motor is coupled to the rotor assembly and drives it to rotate. A vacuum pump having an exhaust energy-saving structure according to claim 1, wherein the external air intake source is a high-pressure gas, and the exhaust port is connectable to the check valve of the exhaust portion. The vacuum pump with an exhaust energy-saving structure according to claim 1, wherein the external air source is a high-pressure gas, and the vacuum is produced. The living device and the air inlet and the external air source may be selectively provided with any one or more of the following combinations: a solenoid valve and a check valve. A vacuum pump having an exhaust energy-saving structure according to the first aspect of the invention, wherein the vacuum port and the dental hole of the vacuum generator are selectively provided with any one or more of the following combinations: a solenoid valve and a backstop. valve. The vacuum pump with the exhaust energy-saving structure according to the first aspect of the invention, wherein the vacuum port can cause a vacuum state between the exhaust portion and the check valve, thereby achieving the effect of no-load energy saving. The vacuum pump with an exhaust energy-saving structure according to claim 1, wherein a pressure gauge can be selectively installed inside the casing, and the pressure gauge can be disposed on the high-pressure section and the low-pressure section rotor of the casing. When the pressure value is lower than a proper pressure value and the motor current is higher than a proper current, the solenoid valve of the air inlet and the vacuum port can be used to make the high pressure gas enter the vacuum generator to achieve vacuum until the motor current is as low as possible. The solenoid valve can be turned off while saving current to save energy in the vacuum generator. A vacuum pump having an exhaust energy-saving structure according to claim 1, wherein the high-pressure section is further provided with a high-pressure end plate and a vacuum generator is disposed thereon. A vacuum pump having an exhaust energy-saving structure according to claim 1, wherein the check valve is combined with an exhaust muffler. A vacuum pump having an exhaust energy-saving structure according to claim 1, wherein the rotor assembly is divided into an active rotor and a driven rotor.