CN212508714U - Compressor, external oil storage device and compressor system - Google Patents

Abstract

The utility model provides a compressor, an external oil storage device and a compressor system, wherein the compressor comprises a shell, the shell is provided with an inner cavity, and the inner cavity can contain engine oil; the shell is provided with a first interface and a second interface, and the first interface and the second interface are both arranged on the shell and communicated with the inner cavity; the plug-in oil storage device comprises an oil storage cavity, a third interface and a fourth interface, and the third interface and the fourth interface are communicated with the oil storage cavity; the third interface with first interface connection, the fourth interface with the second interface connection, the oil storage chamber with the inner chamber intercommunication of casing. When the compressor is communicated with or detached from the external oil storage device, the engine oil volume of the compressor system is changed, and the problems that in the prior art, the engine oil volume of the compressor is fixed and unchangeable, and different requirements on the internal volume under various working conditions cannot be met simultaneously are solved.

Description

Compressor, external oil storage device and compressor system

Technical Field

The utility model relates to a compressor technical field, in particular to compressor, external oil storage device and compressor system.

Background

The volume for containing engine oil in the common compressor is fixed, and if the compressor is designed into a larger internal volume, the manufacturing cost and the transportation cost are increased, and the engine oil consumption and the operation and maintenance cost under most working conditions are increased; if the compressor is designed to have a smaller internal volume, the oil filling amount of the refrigerating machine oil is increased when the compressor is used in the fields of multi-split air compressors and the like, so that the upper bearing with the oil exceeding the oil amount of the compressor does not pass through the exhaust port. The compressor may generate abnormal noise and increase exhaust resistance. And the oil level is increased, so the oil yield is also increased.

In summary, in the prior art, the compressor has the problems that the volume of engine oil is fixed and unchangeable, and different requirements on the internal volume under various working conditions cannot be met simultaneously.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a compressor, external oil storage device and compressor system to the machine oil volume of solving the compressor is fixed unchangeable, can't deal with the problem of the different requirements of internal volume under the multiple operating mode simultaneously.

In order to solve the above technical problem, according to a first aspect of the present invention, there is provided a compressor, including a housing having an inner cavity, the inner cavity being capable of accommodating engine oil; the shell is provided with a first interface and a second interface, and the first interface and the second interface are both arranged on the shell and communicated with the inner cavity; the first interface is used for being higher than the oil level of the engine oil, the second interface is used for being lower than the oil level of the engine oil, and the first interface and the second interface are respectively used for being detachably matched and connected with an external oil storage device.

Optionally, the first interface and the second interface are respectively provided with a first valve.

Optionally, the compressor includes an upper cylinder and a motor core, and the motor core is located above the upper cylinder; the first interface is located between the center of the upper air cylinder and the bottom end of the motor iron core along the axial position of the shell.

In order to solve the technical problem, according to the utility model discloses a second aspect still provides an external oil storage device for use with foretell compressor cooperation, external oil storage device includes oil storage chamber, third interface and fourth interface, the third interface with the fourth interface all with oil storage chamber intercommunication, the third interface be used for with first interface detachably connects, the fourth interface be used for with second interface detachably connects.

Optionally, the third port and the fourth port have a second valve respectively.

In order to solve the above technical problem, according to a third aspect of the present invention, there is provided a compressor system, including the above compressor and the above external oil storage device; the third interface with first interface connection, the fourth interface with the second interface connection, the oil storage chamber with the inner chamber intercommunication of casing.

Optionally, the compressor further comprises a bearing part, and the externally hung oil storage device is placed on the bearing part.

Optionally, the outer side of the compressor is further provided with a first oil pointer, and the plug-in oil storage device is further provided with a second oil pointer.

Optionally, the first interface and the third interface are connected by a rigid pipe, and the second interface and the fourth interface are connected by a rigid pipe.

Optionally, a first limiting part is arranged on the outer side of the compressor, and a second limiting part is arranged on the outer side of the plug-in oil storage device; the first limiting part and the second limiting part are abutted against each other and used for limiting the relative displacement between the plug-in oil storage device and the compressor; the first interface is connected with the third interface through a flexible pipe, and the second interface is connected with the fourth interface through a flexible pipe.

Compared with the prior art, in the compressor, the external oil storage device and the compressor system provided by the utility model, the compressor comprises a shell, the shell is provided with an inner cavity, and the inner cavity can contain engine oil; the shell is provided with a first interface and a second interface, and the first interface and the second interface are both arranged on the shell and communicated with the inner cavity; the plug-in oil storage device comprises an oil storage cavity, a third interface and a fourth interface, and the third interface and the fourth interface are communicated with the oil storage cavity; the third interface with first interface connection, the fourth interface with the second interface connection, the oil storage chamber with the inner chamber intercommunication of casing. When the compressor is communicated with or detached from the external oil storage device, the engine oil volume of the compressor system is changed, and the problems that in the prior art, the engine oil volume of the compressor is fixed and unchangeable, and different requirements on the internal volume under various working conditions cannot be met simultaneously are solved.

Drawings

Those skilled in the art will appreciate that the drawings are provided for a better understanding of the invention and do not constitute any limitation on the scope of the invention. Wherein:

fig. 1 is a schematic view of a compressor according to an embodiment of the present invention;

fig. 2 is a schematic view of a compressor system according to an embodiment of the present invention;

fig. 3 is a schematic diagram of a first interface according to an embodiment of the present invention;

fig. 4 is a schematic diagram of a second interface according to an embodiment of the present invention;

fig. 5 is a schematic view illustrating a connection mode between a compressor and an external oil storage device according to an embodiment of the present invention.

In the drawings:

100-a compressor; 200-hanging the oil storage device outside; 300-oil level.

101-a first interface; 102-a second interface; 110-a load bearing part; 120-a housing; 130-lumen; 140-upper cylinder; 150-a motor core; 160-a first limiting part;

201-a third interface; 202-a fourth interface; 210-a reservoir chamber; 220-second limit part.

Detailed Description

To make the objects, advantages and features of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. It is to be noted that the drawings are in simplified form and are not to scale, but rather are provided for the purpose of facilitating and distinctly claiming the embodiments of the present invention. Further, the structures illustrated in the drawings are often part of actual structures. In particular, the drawings may have different emphasis points and may sometimes be scaled differently.

As used in this application, the singular forms "a", "an" and "the" include plural referents, the term "or" is generally employed in a sense including "and/or," the terms "a", "an" and "the" are generally employed in a sense including "at least one", the terms "at least two" and "two or more" are generally employed in a sense including "two or more", and moreover, the terms "first", "second" and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or imply that there is a number of technical features being indicated. Thus, features defined as "first", "second" and "third" may explicitly or implicitly include one or at least two of the features, "one end" and "the other end" and "proximal end" and "distal end" generally refer to the corresponding two parts, which include not only the end points, but also the terms "mounted", "connected" and "connected" should be understood broadly, e.g., as a fixed connection, as a detachable connection, or as an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. Furthermore, as used in the present application, the disposition of an element with another element generally only means that there is a connection, coupling, fit, or drive relationship between the two elements, and the connection, coupling, fit, or drive between the two elements may be direct or indirect through intermediate elements, and is not to be understood as indicating or implying any spatial relationship between the two elements, i.e., an element may be in any orientation within, outside, above, below, or to one side of another element unless the content clearly dictates otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The utility model discloses a core thought lies in providing a compressor, external oil storage device and compressor system to the machine oil volume of solving the compressor is fixed unchangeable, can't deal with the problem of the different requirements of internal volume under the multiple operating mode simultaneously.

The following description refers to the accompanying drawings.

[ examples ] A method for producing a compound

Referring to fig. 1 to 5, in which, fig. 1 is a schematic view of a compressor according to an embodiment of the present invention; fig. 2 is a schematic view of a compressor system according to an embodiment of the present invention; fig. 3 is a schematic diagram of a first interface according to an embodiment of the present invention; fig. 4 is a schematic diagram of a second interface according to an embodiment of the present invention; fig. 5 is a schematic view illustrating a connection mode between a compressor and an external oil storage device according to an embodiment of the present invention.

Fig. 1 shows a compressor 100, the compressor 100 including a housing 120, the housing 120 having an internal cavity 130, the internal cavity 130 being capable of containing oil; the housing 120 has a first port 101 and a second port 102, and both the first port 101 and the second port 102 are opened on the housing 120 and are communicated with the inner cavity 130; the first interface 101 is used for being higher than the oil level 300 of the engine oil, the second interface 102 is used for being lower than the oil level 300 of the engine oil, and the first interface 101 and the second interface 102 are respectively used for being detachably connected with an external oil storage device 200 in a matched manner.

Fig. 2 shows an external oil storage device 200, which is used in cooperation with the compressor 100, where the external oil storage device 200 includes an oil storage cavity 210, a third interface 201 and a fourth interface 202, the third interface 201 and the fourth interface 202 are both communicated with the oil storage cavity 210, the third interface 201 is used to detachably connect with the first interface 101, and the fourth interface 202 is used to detachably connect with the second interface 102.

Fig. 2 also shows a compressor system comprising the above-described compressor 100 and the above-described external oil storage device 200; the third port 201 is connected to the first port 101, the fourth port 202 is connected to the second port 102, and the oil storage chamber 210 communicates with the inner chamber 130 of the housing.

It should be understood that the meaning of "the first interface 101 is used to be higher than the oil level 300 of the oil" means that the communication point of the first interface 101 and the inner cavity 130 is higher than the oil level 300 of the oil. Referring to fig. 3, in an exemplary embodiment, the first port 101 is positioned on the housing 120 with a dimension lower than the oil level 300, but the first port 101 is connected to the inner cavity 130 with a higher communication point than the oil level 300 of the oil. Obviously, such a structure can fully realize the advantages of the present invention, and should be considered as the protection scope of the claims. The following description about the installation position of the first interface 101 should be understood in light of this idea.

It should be understood that the meaning of "the second interface 102 is used below the oil level 300 of the oil" means that the communication point of the second interface 102 and the inner cavity 130 is below the oil level 300 of the oil. Referring to fig. 4, in an exemplary embodiment, the second port 102 is positioned on the housing 120 with a dimension higher than the oil level 300, but the second port 102 communicates with the inner cavity 130 at a point lower than the oil level 300 of the oil. When the second connector 102 is filled with oil, the oil transfer between the left side and the right side can still be realized by using the siphon principle, and obviously, such a structure can fully realize the beneficial effects of the present invention, and it should be considered as the protection scope of the claims. The following description regarding the installation position of the second interface 102 should also be understood in light of this idea.

It should be understood that, in order to ensure that the inner cavity 130 and the oil storage cavity 210 are communicated and oil can smoothly flow between the two, a relatively simple structure is to communicate through two sets of ports, one set is communicated with oil and the other set is communicated with air. If only one set of interfaces for communicating oil is provided, the air in the inner chamber 130 and the oil storage chamber 210 will not flow through, and thus a great pressure difference will be generated, which will prevent the oil from flowing smoothly. If the inner cavity 130 and the oil storage cavity 210 are additionally communicated with the atmosphere through another interface on the premise of providing a set of interfaces for communicating with the engine oil, although the flow of the engine oil is not obstructed any more, the air tightness of the whole compressor 100 is damaged, and other functions are affected. Thus, the two sets of interfaces are a preferred configuration. However, in consideration of the factors of increasing the flow rate and smoothing the impact force, the solution in which more sets of ports are provided outside the shell 110 and the oil storage chamber 210 for communication, that is, the solution in which the compressor 100 includes more than two first ports 101 or more than two second ports 102 and the plug-in oil storage device 200 includes more than two third ports 201 or more than two fourth ports 202 should be considered as the protection scope of the claims.

So configured, the compressor system can operate in two states:

the first state: the compressor 100 operates alone, and in this state, the advantage of small volume can be obtained, the consumed oil amount is small, and the operation and maintenance cost is low;

the second state: the compressor 100 and the external oil storage device 200 are communicated to work, and the advantage of large volume can be obtained in the state, so that the requirement on the engine oil volume of the compressor 100 under special working conditions is met. Further, a plurality of external oil storage devices 200 with different volumes can be prepared, and different requirements for the engine oil volume of the compressor 100 under different working conditions can be further met.

Preferably, the first port 101 and the second port 102 respectively have a first valve, and the third port 201 and the fourth port 202 respectively have a second valve. Through the switching of valve, can make things convenient for above-mentioned compressor system to switch smoothly under two kinds of operating condition.

Preferably, the compressor 100 includes an upper cylinder 140 and a motor core 150, and the motor core 150 is located above the upper cylinder 140; the first port 101 is located between the center of the upper cylinder 140 and the bottom end of the motor core 150 along the axial position of the housing 120. This ensures that the first port 101 is always above the oil level 300 and also ensures that it does not interfere with other components within the compressor 100.

Preferably, the compressor 100 further includes a load bearing part 110, and the external oil storage device 200 is placed on the load bearing part 100. This is to reduce the external force generated at the joint of the first interface 101 and the third interface 201 along the axial direction of the housing 120 due to the gravity of the plug-in oil storage device 200, reduce the external force generated at the joint of the second interface 102 and the fourth interface 202 along the axial direction of the housing 120 due to the gravity of the plug-in oil storage device 200, and increase the service lives of the two interfaces. The load-bearing part 110 can be, for example, a bracket welded to the housing 120, and in practice, the external oil storage device 200 can rest on the bracket.

Preferably, the outer side of the compressor 100 further has a first oil level, and the external oil storage device 200 further has a second oil level. Therefore, an operator can conveniently observe whether the oil level 300 in the compressor 100 and the oil level 300 in the plug-in oil storage device 200 are on the same plane before communicating the inner cavity 130 with the oil storage cavity 210, and accidents caused by sudden communication between the inner cavity 130 and the oil storage cavity 210 when the oil levels 300 on the two sides are too different are avoided.

In a preferred embodiment, the first port 101 and the third port 201 are connected by a rigid pipe, and the second port 102 and the fourth port 202 are connected by a rigid pipe. The structure is simple, the rigid pipe can be communicated with the inner cavity 130 and the oil storage cavity 210, the relative position relation between the external oil storage device 200 and the compressor 100 can be relatively fixed, the external oil storage device 200 cannot be separated from the compressor 100 due to vibration or external force disturbance when the compressor works, and the normal work of the compressor is facilitated.

Referring to fig. 5, in another preferred embodiment, the outer side of the compressor 100 has a first position-limiting portion 160, and the outer side of the external oil storage device 200 has a second position-limiting portion 220; the first limiting part 160 and the second limiting part 220 abut against each other to limit the relative displacement between the external oil storage device 200 and the compressor 100; the first port 101 and the third port 103 are connected by a flexible pipe, and the second port 102 and the fourth port 104 are connected by a flexible pipe.

It should be understood that the arrangement position and shape of the first position-limiting part 160 and the second position-limiting part 220 in fig. 5 are not fixed. For example, the first stopper portion 160 may be disposed along the circumferential direction of the housing 110; the case of the external oil storage device 200 may be directly used as the second limiting portion 220. In one embodiment, the first position-limiting portion 160 is the load-bearing portion 110, and the second position-limiting portion 220 is a bottom end surface of the external oil storage device 200. Any structure correspondingly arranged between the compressor 100 and the external oil storage device 200 for limiting the relative displacement between the compressor and the external oil storage device should be regarded as the first limiting part 160 and the second limiting part 220.

With such a configuration, firstly, the first position-limiting part 160 and the second position-limiting part 220 avoid additional stress caused by form and position tolerance in connection of the first interface 101, the second interface 102, the third interface 201 and the fourth interface 202, which cannot be offset by the load-bearing part 110, and the additional stress may cause slight deformation of the first interface 101, the second interface 102, the third interface 201 and the fourth interface 202, thereby causing a threat to the sealing performance thereof. Although the first position-limiting portion 160 and the second position-limiting portion 220 also bear the additional stress in the present embodiment, the slight deformation of the first position-limiting portion 160 and the second position-limiting portion 220 does not affect their position-limiting functions. Therefore, the service life of the four interfaces can be prolonged. Secondly, the flexible pipe is used for connection, so that the coupling relation between the distance between the first interface 101 and the second interface 102 and the distance between the third interface 201 and the fourth interface 202 is eliminated, the same compressor 100 is allowed to be connected with plug-in oil storage devices with different interface distances, and the compatibility is improved. It is understood that in other embodiments, one of the connections between the first port 101 and the third port 201, and the second port 102 and the fourth port 202 may be a rigid pipe connection, and the other may be a flexible pipe connection. The definition of the relative positional relationship between the externally mounted oil reservoir 200 and the compressor 100 is achieved by one set of rigid pipe connections, while the other set of flexible pipe connections decouples stress deformations due to tolerances.

In summary, in the compressor, the external oil storage device and the compressor system provided by the present invention, the compressor includes a housing, the housing has an inner cavity, and the inner cavity can contain engine oil; the shell is provided with a first interface and a second interface, and the first interface and the second interface are both arranged on the shell and communicated with the inner cavity; the plug-in oil storage device comprises an oil storage cavity, a third interface and a fourth interface, and the third interface and the fourth interface are communicated with the oil storage cavity; the third interface with first interface connection, the fourth interface with the second interface connection, the oil storage chamber with the inner chamber intercommunication of casing. When the compressor is communicated with or detached from the external oil storage device, the engine oil volume of the compressor system is changed, and the problems that in the prior art, the engine oil volume of the compressor is fixed and unchangeable, and different requirements on the internal volume under various working conditions cannot be met simultaneously are solved.

The above description is only for the preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and any modification and modification made by those skilled in the art according to the above disclosure are all within the scope of the claims.

Claims (10)

1. A compressor, characterized in that the compressor comprises a shell, wherein the shell is provided with an inner cavity which can contain engine oil; the shell is provided with a first interface and a second interface, and the first interface and the second interface are both arranged on the shell and communicated with the inner cavity; the first interface is used for being higher than the oil level of the engine oil, the second interface is used for being lower than the oil level of the engine oil, and the first interface and the second interface are respectively used for being detachably matched and connected with an external oil storage device.

2. A compressor according to claim 1, wherein the first port and the second port each have a first valve.

3. The compressor of claim 1, wherein the compressor comprises an upper cylinder and a motor core, the motor core is positioned above the upper cylinder; the first interface is located between the center of the upper air cylinder and the bottom end of the motor iron core along the axial position of the shell.

4. An externally-hung oil storage device, which is used in cooperation with the compressor according to any one of claims 1 to 3, and comprises an oil storage cavity, a third interface and a fourth interface, wherein the third interface and the fourth interface are communicated with the oil storage cavity, the third interface is detachably connected with the first interface, and the fourth interface is detachably connected with the second interface.

5. The plug-in oil storage device according to claim 4, wherein the third port and the fourth port are respectively provided with a second valve.

6. A compressor system, characterized by comprising a compressor according to any one of claims 1 to 3, and an external oil storage device according to claim 4 or 5; the third interface with first interface connection, the fourth interface with the second interface connection, the oil storage chamber with the inner chamber intercommunication of casing.

7. The compressor system of claim 6, further comprising a load bearing portion, wherein the external oil storage device is placed on the load bearing portion.

8. The compressor system of claim 6, wherein the compressor further comprises a first oil pointer on the outside thereof, and the external oil storage device further comprises a second oil pointer.

9. The compressor system of claim 6, wherein the first port and the third port are connected by a rigid pipe connection, and the second port and the fourth port are connected by a rigid pipe connection.

10. The compressor system of claim 6, wherein the compressor has a first position-limiting portion on the outside thereof, and the external oil storage device has a second position-limiting portion on the outside thereof; the first limiting part and the second limiting part are abutted against each other and used for limiting the relative displacement between the plug-in oil storage device and the compressor; the first interface is connected with the third interface through a flexible pipe, and the second interface is connected with the fourth interface through a flexible pipe.

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