Double-air-inlet air compressor

Abstract

The utility model discloses a double air inlet air compressor which comprises a box type shell, a motor installed in the shell and a pump head assembly driven by the motor, a belt wheel fan is arranged on the pump head assembly, a motor fan is arranged on the motor, a first air inlet is formed in the bottom of the shell, and a second air inlet is formed in the bottom of the shell. A first air inlet is formed in the rear side wall of the shell, a second air inlet is formed in the rear side wall of the shell, a motor cooling air duct and a pump head cooling air duct are arranged in the shell, a motor cooling air outlet and a pump head cooling air outlet are formed in the shell, the pump head cooling air duct is communicated with the first air inlet and the pump head cooling air outlet, and the pump head cooling air duct is communicated with the pump head cooling air outlet. The motor cooling air duct is communicated with the second air inlet and the motor cooling air outlet, the belt wheel fan is located in the pump head cooling air duct, and the motor fan is located in the motor cooling air duct. A double-air-inlet structure is arranged, and the heat dissipation requirement and the pump head air inlet requirement can be fully met.

Description

TECHNICAL FIELD

[0001] The utility model relates to an air compressor, especially a double air inlet air compressor. BACKGROUND

[0002] In the prior art, for example, the patent number CN201610117126.6, published on September 28, 2016, discloses a pump device structure, which comprises a box body and an air compressor. The air compressor is contained in the box body, and the air flow generated by the operation of the heat dissipation fan of the air compressor is quickly guided to the ventilation opening of the motor housing through the flow guide design of the box body, and then enters the motor housing to produce a heat dissipation effect on the rotor assembly. The high-temperature air flow is then discharged through the perforated hole at the end of the housing, so that the internal part of the motor housing is not easy to accumulate heat, thereby achieving the highest output power of the motor operation, and improving the operation efficiency of the motor. At the same time, the service life of the motor is also prolonged. In the above-mentioned scheme, the external cold air is sucked by the cooling fan on the motor, and the cold air is mainly concentrated on the motor, which lacks cooling of the pump head, affecting the operation of the pump head. SUMMARY

[0003] The utility model provides a double air inlet air compressor which has good heat dissipation effect and is convenient to use.

[0004] According to the double air inlet air compressor provided by the utility model, the pump head assembly is provided with a wheel fan, the motor is provided with a motor fan, the bottom of the shell is provided with a first air inlet, the rear wall of the shell is provided with a second air inlet, the shell is provided with a motor cooling air duct and a pump head cooling air duct, the shell is provided with a motor cooling air outlet and a pump head cooling air outlet, the pump head cooling air duct is connected with the first air inlet and the pump head cooling air outlet, the motor cooling air duct is connected with the second air inlet and the motor cooling air outlet, the wheel fan is located in the pump head cooling air duct, and the motor fan is located in the motor cooling air duct.

[0005] According to the double air inlet air compressor provided by the utility model, the pump head assembly is provided with a wheel fan, the motor is provided with a motor fan, the bottom of the shell is provided with a first air inlet, the rear wall of the shell is provided with a second air inlet, the shell is provided with a motor cooling air duct and a pump head cooling air duct, the shell is provided with a motor cooling air outlet and a pump head cooling air outlet, the pump head cooling air duct is connected with the first air inlet and the pump head cooling air outlet, the motor cooling air duct is connected with the second air inlet and the motor cooling air outlet, the wheel fan is located in the pump head cooling air duct, and the motor fan is located in the motor cooling air duct.

[0006] Further, the motor cooling air outlet and the pump head cooling air outlet are located on the same side of the shell.

[0007] Further, the upper part of the shell is formed with a cavity for accommodating the motor fan, and the cavity is communicated with the motor cooling air outlet.

[0008] Further comprising, under the suction force of the belt wheel fan, external cold air enters the shell through the first air inlet, the cold air entering the shell flows through the pump head cooling air duct and is discharged through the pump head cooling air outlet, and the pump head assembly is located in the pump head cooling air duct.

[0009] Further comprising, under the suction force of the motor fan, external cold air enters the shell through the second air inlet, the cold air entering the shell flows through the motor cooling air duct and is discharged through the motor cooling air outlet, and the motor is located in the motor cooling air duct.

[0010] Further comprising, part of the cold air entering through the second air inlet flows into the pump head of the pump head assembly.

[0011] Further comprising, the high-pressure air outlet in the pump head assembly is connected with a heat dissipation coil pipe, and part of the heat dissipation coil pipe is located at the first air inlet.

[0012] Further comprising, a partition plate is arranged in the shell, and the motor cooling air outlet and the pump head cooling air outlet are formed on the partition plate.

[0013] Compared with the prior art, the double-air-inlet air compressor provided by the utility model has the following advantages: the double-air-inlet and double-cooling-air-duct structure arranged in the utility model can fully meet the needs of motor heat dissipation and pump head assembly heat dissipation. The belt wheel fan and the motor fan arranged in the utility model can further improve the heat dissipation effect of the pump head assembly and the motor. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a front view of the utility model

[0015] Figure 2 It is a rear view of the utility model.

[0016] Figure 3 It is an internal structure diagram of the utility model.

[0017] Figure 4 It is a shell perspective view in the utility model.

[0018] Figure 5 It is a perspective view of the motor and the pump head assembly in the utility model. DETAILED DESCRIPTION

[0019] In order to clearly illustrate the scheme in the utility model, the preferred embodiments are given below and are described in detail in combination with the drawings. The following description is essentially only exemplary and is not intended to limit the application or use of the present disclosure. It should be understood that in all the drawings, corresponding reference numerals represent the same or corresponding parts and features.

[0020] As Figures 1 to 5 shown, the utility model provides a kind of double air inlet air compressor, including box shell 1, motor 2 being installed in the shell 1 and pump head assembly 3 being driven by the motor 2, belt pulley fan 4 is provided on the pump head assembly 3, motor fan 5 is provided on the motor 2, the bottom 11 of the shell 1 is provided with first air inlet 6, the rear wall 12 of the shell 1 is provided with second air inlet 7, motor cooling air duct 51 and pump head cooling air duct 41 are provided in the shell 1, motor cooling air outlet 52 and pump head cooling air outlet 42 are provided on the shell 1, the pump head cooling air duct 41 is communicated the first air inlet 6 with the pump head cooling air outlet 42, the motor cooling air duct 51 is communicated the second air inlet 7 with the motor cooling air outlet 52, the belt pulley fan 4 is located in the pump head cooling air duct 41, the motor fan 5 is located in the motor cooling air duct 51. Pump head assembly 3 in the utility model includes pump head 31, piston, crank mechanism and pulley, the belt pulley fan 4 is installed on the pulley, is rotated by the pulley drive. The utility model is to improve the heat dissipation performance, and the bottom of the shell 1 is provided with first air inlet 6, as the heat dissipation cold air import of pump head assembly 3. By the belt pulley fan 4 as suction component, external cold air is sucked into the pump head cooling air duct 41, and the pump head assembly 3 is cooled, and the heat dissipation performance is improved. Under the suction force of the motor fan 5, external cold air enters the shell 1 through the second air inlet 7, and then bends and flows into the motor cooling air duct 51, to cool the motor 2, and improve the heat dissipation performance of motor 2. As Figure 3 shown, the upper half of the shell 1 is shown as the cooling airflow direction diagram of motor cooling air duct, and the lower half is shown as the cooling airflow direction diagram of pump head cooling air duct. The utility model is provided with two independent cooling air ducts in the shell 1, and motor 2 and the pump head assembly 3 are cooled respectively, and the heat dissipation performance of the above two components is improved. The shell 1 of the utility model is box structure, and mainly installs motor 2 and pump head assembly 3 in it. The top of the shell 1 is provided with handle, and the overall weight is lighter, so that use is more convenient.

[0021] Referring to Figures 1 to 5 In the above embodiment of the utility model, further including, the motor cooling air outlet 52 and the pump head cooling air outlet 42 are located on the same side of the shell 1. The utility model sets two air outlets on the same side, which is conducive to airflow flow, and the heat dissipation effect is better.

[0022] Referring to Figures 1 to 5In the above embodiment provided by the utility model, further include, the upper portion of the casing 1 is shaped with a cavity 53 containing the motor fan 5, the cavity 53 is communicated with the motor cooling air outlet 52.The motor fan 5 can blow the gas in the cavity 53 from the motor cooling air outlet 52, so that the cavity 53 forms negative pressure, and the cooling gas flowing through the motor 2 enters the cavity 53 under the action of negative pressure, which is beneficial to the flow of cooling air.

[0023] Referring to Figures 1 to 5 In the above embodiment provided by the utility model, further include, under the suction effect of the pulley fan 4, external cool air enters the casing 1 through the first air inlet 6, and the cool air entering the casing 1 is discharged from the pump head cooling air outlet 42 after flowing through the pump head cooling air duct 41, and the pump head assembly 3 is located in the pump head cooling air duct 41.The pulley fan 4 sucks external cool air into the casing 1 through the first air inlet 6, and the air inlet effect is better.The pulley fan 4 blows cool air into the pump head assembly 3 to cool the pump head assembly 3, and the cooling effect is better.

[0024] Referring to Figures 1 to 5 In the above embodiment provided by the utility model, further include, under the suction effect of the motor fan 5, external cool air enters the casing through the second air inlet, and the cool air entering the casing 1 is discharged from the motor cooling air outlet 52 after flowing through the motor cooling air duct 51, and the motor 2 is located in the motor cooling air duct 51.The motor fan 5 sucks cool air into the motor 2 to cool the motor 2, and the cooling effect is better.

[0025] Referring to Figures 1 to 5 In the above embodiment provided by the utility model, further include, part of the cool air entering through the second air inlet 7 flows into the pump head 31 of the pump head assembly 3.The airflow entering through the second air inlet 7 is partly used as pump head 31 suction gas, and the other part is used as cooling airflow.

[0026] Referring to Figures 1 to 5 In the above embodiment provided by the utility model, further include, the high-pressure airflow outlet in the pump head assembly 3 is connected with a heat dissipation coil pipe 32, and part of the heat dissipation coil pipe 32 is located at the first air inlet 6.The cool air entering through the first air inlet 6 dissipates heat to the heat dissipation coil pipe 32, which can reduce the temperature of high-pressure gas and protect the rear high-pressure hose.

[0027] Referring to Figures 1 to 5In the above embodiment given by the utility model, further include, the casing 1 is provided with a baffle 14, the motor cooling air outlet 52 and the pump head cooling air outlet 42 are shaped on the baffle 14.The baffle 14 plays the role of division, and the casing 1 is divided into a cavity accommodating high-pressure hose.

[0028] In summary, the above-mentioned content is only an embodiment of the utility model, only for explaining the principle of the utility model, and is not used to limit the protection scope of the utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A dual intake air compressor comprising a box-type casing, a motor mounted in said casing and a pump head assembly driven by said motor, said pump head assembly being provided with a belt wheel fan, said motor being provided with a motor fan, characterized in that: The bottom of the shell is provided with a first air inlet, the rear wall of the shell is provided with a second air inlet, the shell is provided with a motor cooling air duct and a pump head cooling air duct, the shell is provided with a motor cooling air outlet and a pump head cooling air outlet, the pump head cooling air duct communicates the first air inlet and the pump head cooling air outlet, the motor cooling air duct communicates the second air inlet and the motor cooling air outlet, the belt wheel fan is located in the pump head cooling air duct, and the motor fan is located in the motor cooling air duct.

2. A dual air intake air compressor as claimed in claim 1 wherein: The motor cooling air outlet and the pump head cooling air outlet are located on the same side of the shell.

3. A dual air intake air compressor as defined in claim 1, wherein: The upper part of the shell is shaped with a cavity accommodating the motor fan, and the cavity communicates with the motor cooling air outlet.

4. A dual air intake air compressor as defined in claim 1, wherein: Under the action of the suction force generated by the belt wheel fan, external cold air enters the shell through the first air inlet, the cold air in the shell flows through the pump head cooling air duct and is discharged through the pump head cooling air outlet, and the pump head assembly is located in the pump head cooling air duct.

5. A dual air intake air compressor as defined in claim 1, wherein: Under the action of the suction force generated by the motor fan, external cold air enters the shell through the second air inlet, the cold air in the shell flows through the motor cooling air duct and is discharged through the motor cooling air outlet, and the motor is located in the motor cooling air duct.

6. A dual air intake air compressor as claimed in claim 5 wherein: Part of the cold air entering through the second air inlet flows into the pump head of the pump head assembly.

7. A dual air intake air compressor as defined in claim 1, wherein: The high-pressure air outlet in the pump head assembly is connected with a heat dissipation coil pipe, and part of the heat dissipation coil pipe is located at the first air inlet.

8. A dual air intake air compressor as defined in claim 1, wherein: The shell is provided with a partition plate, and the motor cooling air outlet and the pump head cooling air outlet are formed on the partition plate.

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