Efficient heat dissipation crankshaft box body of air compressor

Abstract

The utility model discloses an efficient heat dissipation crankshaft box body of an air compressor, which comprises a closed air compression working cavity, a motor connecting end positioned on the outer side of the air compression working cavity and a ventilation heat dissipation cavity opposite to and communicated with the motor connecting end, and the motor connecting end is used for being connected with the end part of a motor box; the air compression working cavity comprises an air inlet and outlet cavity located at the upper end and a crankshaft cavity located below the air inlet and outlet cavity, the crankshaft cavity is used for installing a crankshaft and a connecting rod mechanism, the motor connecting end is correspondingly arranged outside the crankshaft cavity, and a motor rotating shaft in the motor box extends into the crankshaft cavity from the motor connecting end to drive the crankshaft and the connecting rod mechanism to act. The ventilation heat dissipation cavity surrounds the outer wall of the crankshaft cavity and is independent of the crankshaft cavity, the ventilation heat dissipation cavity and the motor connecting end are located at the two ends of the crankshaft cavity respectively, and the ventilation heat dissipation cavity faces a motor in the motor box, so that heat of the outer wall of the crankshaft cavity can be quickly led out through the ventilation heat dissipation cavity, heat of the motor can be led out, and silent heat dissipation is achieved.

Description

Technical Field

[0001] The utility model relates to the field of air compressors, and particularly relates to an efficient heat dissipation crankshaft box of an air compressor. Background Art

[0002] At present, the heat sources of compressors for oxygen production on the market can be divided into two parts: one is the temperature rise caused by the electrothermal effect of the motor; the other is the increase in the internal energy of the air due to the mechanical energy doing work on the air in the compression chamber (cylinder), resulting in a temperature rise.

[0003] The heat dissipation and noise reduction of air compressors are usually contradictory. For existing air compressors, some have a housing structure with an open crankcase. For example, in the utility model patent with the application number CN202322244370.7, heat dissipation is achieved by setting a fan in the crankcase and ventilation holes on the surface of the crankcase, which is beneficial for ventilation and heat dissipation but not for sound insulation; some have a closed crankcase, which emphasizes enclosing the noise source but is not conducive to ventilation and heat dissipation.

[0004] Therefore, how to design a crankshaft box that can reduce noise and is conducive to heat dissipation is the technical problem to be solved by the utility model. Content of the Utility Model

[0005] The main purpose of the utility model is to provide an efficient heat dissipation crankshaft box of an air compressor, aiming to achieve good noise reduction and heat dissipation effects.

[0006] The utility model provides an efficient heat dissipation crankshaft box of an air compressor, which includes a closed air compression working chamber, a motor connection end located outside the air compression working chamber, and a ventilation and heat dissipation chamber opposite to and communicating with the motor connection end. The air compression working chamber includes an air inlet and outlet chamber at the upper end and a crankshaft chamber below the air inlet and outlet chamber. The motor connection end is correspondingly arranged outside the crankshaft chamber. The ventilation and heat dissipation chamber surrounds the outer wall of the crankshaft chamber. The ventilation and heat dissipation chamber and the motor connection end are respectively located at both ends of the crankshaft chamber.

[0007] Preferably, a plurality of heat dissipation fins are arranged in the ventilation and heat dissipation chamber, and ventilation channels are formed at intervals between the heat dissipation fins.

[0008] Preferably, a motor connection chamber is provided at the motor connection end, and a ventilation port is provided on the side wall of the motor connection chamber.

[0009] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0010] The crankshaft box provided by the utility model includes a closed air compression working chamber, a motor connection end located outside the air compression working chamber, and a ventilation and heat dissipation chamber opposite to and communicating with the motor connection end. The motor connection end is used for connecting with the end of the motor box;

[0011] The air compression working chamber includes an air inlet / outlet chamber at the upper end and a crankshaft chamber below the air inlet / outlet chamber. The crankshaft chamber is used to install the crankshaft and the connecting rod mechanism. The motor connection end is correspondingly arranged outside the crankshaft chamber. The motor rotating shaft in the motor box extends into the crankshaft chamber from the motor connection end to drive the crankshaft and the connecting rod mechanism to act;

[0012] The ventilation and heat dissipation chamber surrounds the outer wall of the crankshaft chamber and is independent. The ventilation and heat dissipation chamber and the motor connection end are respectively located at both ends of the crankshaft chamber. The ventilation and heat dissipation chamber faces the motor in the motor box. Thus, the ventilation and heat dissipation chamber can quickly export the heat from the outer wall of the crankshaft chamber and can also export the heat of the motor, realizing heat dissipation while the air compression working chamber is a closed structure and achieving silent heat dissipation. Description of the Drawings

[0013] Figure 1 Schematic diagram when the end cover of the crankshaft housing in the embodiment of the present invention is opened Figure 1 。

[0014] Figure 2 Schematic diagram when the end cover of the crankshaft housing in the embodiment of the present invention is opened Figure 2 。

[0015] The realization of the purpose, functional characteristics and advantages of the present invention will be further described with reference to the embodiments and the accompanying drawings. Detailed Embodiments

[0016] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the accompanying drawings, in which the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described by referring to the accompanying drawings are exemplary and are intended to explain the present invention, but should not be construed as limiting the present invention.

[0017] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which this application belongs; the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above description of the drawings are intended to cover non-exclusive inclusion. The terms "first", "second", etc. in the specification and claims of this application or the above drawings are used to distinguish different objects and are not used to describe a specific order.

[0018] References herein to "embodiments" mean that the particular features, structures, or characteristics described in connection with the embodiments can be included in at least one embodiment of the present application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0019] Referring to Figures 1 to 2 , an embodiment of the present utility model provides an efficiently heat-dissipating crankshaft housing of an air compressor, which includes a closed air compression working chamber, a motor connection end 5 located outside the air compression working chamber, and a ventilation and heat dissipation chamber opposite to and communicating with the motor connection end 5, and the motor connection end 5 is used for connecting with the end of the motor housing.

[0020] The air compression working chamber includes an air inlet and outlet chamber 2 located at the upper end and a crankshaft chamber 1 located below the air inlet and outlet chamber 2. The crankshaft chamber 1 is used for installing a crankshaft and a connecting rod mechanism. The motor connection end 5 is correspondingly arranged outside one end of the crankshaft chamber. A jack for inserting the motor rotating shaft is provided on the side wall of one end of the crankshaft chamber 1. The motor rotating shaft in the motor housing extends into the crankshaft chamber through the motor connection end 5 and the jack, forming a closed crankshaft housing with good sound insulation effect. The motor drives the crankshaft and the connecting rod mechanism to act.

[0021] The ventilation and heat dissipation chamber surrounds the outer wall of the crankshaft chamber 1. The ventilation and heat dissipation chamber and the air compression working chamber are independent of each other. The ventilation and heat dissipation chamber and the motor connection end 5 are respectively located at both ends of the crankshaft chamber 1. A plurality of heat dissipation fins 3 are arranged in the ventilation and heat dissipation chamber. Ventilation channels 4 are formed at intervals relative to each other between the heat dissipation fins 3. The arrangement of the heat dissipation fins 3 is used to increase the heat dissipation area and has a supporting effect, supporting between the side wall of the ventilation and heat dissipation chamber and the side wall of the crankshaft chamber. The heat dissipation fins 3 are in contact with the outer wall of the crankshaft chamber 1, and can quickly conduct the heat of the air compression working chamber to dissipate heat for the air compression working chamber.

[0022] The ventilation and heat dissipation chamber faces the motor in the motor housing. The heat dissipation fins 3 are in contact with the motor to conduct heat, and the ventilation channels can accelerate the heat exchange in the motor housing. During use, two crankshaft housings are connected to both ends of the motor housing, and the ventilation and heat dissipation chambers at both ends face the motor in the motor housing, forming a complete air inlet and outlet heat dissipation channel to realize ventilation and heat dissipation of the motor.

[0023] Further, a fan can be arranged in front of the ventilation and heat dissipation chamber to accelerate heat dissipation by blowing air with the fan; or a fan blade can be arranged in the motor housing, and the fan blade is connected to the rotating shaft of the motor, and the rotation of the fan blade can accelerate the air flow to improve the heat dissipation performance.

[0024] A motor connection cavity is provided at the motor connection end 5, and the end of the motor box is placed in the motor connection cavity, so that the motor box is firmly connected to the crankcase. The side wall of the motor connection cavity contacts the motor wire package, conducts the heat of the motor to the heat sink 3 for heat dissipation, and a ventilation opening 6 is provided on the side wall of the motor connection cavity to further provide heat dissipation for the motor.

[0025] This product can achieve heat dissipation while satisfying that the air compression working cavity is a closed structure, and achieve silent heat dissipation.

[0026] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the protection scope of the invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on these embodiments, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art can still, without conflict and without creative efforts, combine, add or delete the features in the various embodiments of the present invention according to the situation, or make other adjustments, so as to obtain different technical solutions that essentially do not deviate from the concept of the present invention, and these technical solutions also belong to the scope of protection of the present invention.

Claims

1. An efficient heat dissipation crankshaft housing for an air compressor, characterized in that, It includes a closed air compression working chamber, a motor connection end located outside the air compression working chamber, and a ventilation and heat dissipation chamber opposite to and communicating with the motor connection end. The air compression working chamber includes an air inlet / outlet chamber at the upper end and a crankshaft chamber below the air inlet / outlet chamber. The motor connection end is correspondingly arranged outside the crankshaft chamber. The ventilation and heat dissipation chamber surrounds the outer wall of the crankshaft chamber. The ventilation and heat dissipation chamber and the motor connection end are respectively located at both ends of the crankshaft chamber.

2. The highly efficient heat dissipating crankshaft housing of the air compressor according to claim 1, characterized in that, A plurality of heat dissipation fins are provided in the ventilation and heat dissipation chamber, and ventilation channels are formed at intervals relative to each other between the heat dissipation fins.

3. The high-efficiency heat dissipation crankshaft housing of the air compressor according to claim 1 or 2, characterized in that, A motor connection chamber is provided at the motor connection end, and a ventilation port is provided on the side wall of the motor connection chamber.

Images