Hinge type cooler and compressor system comprising same

Abstract

A hinged cooler and a compressor system including the same, in which the hinged cooler includes: a housing in which a cooling fluid flows; a first heat exchanger disposed within the housing for cooling the first fluid by a cooling fluid; a second heat exchanger disposed within the housing for cooling a second fluid by a cooling fluid; and a hinge located between the first heat exchanger and the second heat exchanger. The first heat exchanger rotates about the hinge in a first direction from a first closed position covering the housing to a first open position in which the first heat exchanger moves to an exterior of the housing. The second heat exchanger rotates about the hinge in a second direction opposite the first direction from a second closed position covering the housing to a second open position in which the second heat exchanger moves to an exterior of the housing.

Description

[0001] Cross-references to related applications

[0002] This patent application is based on and claims the benefit of priority to U.S. Provisional Patent Application No. 63 / 416,893, filed October 17, 2022, the entire disclosure of which is incorporated herein by reference for all purposes. Technical Field

[0003] This disclosure generally relates to hinged coolers, and more specifically, to hinged coolers integrated into portable air compressors. Background Technology

[0004] In related technologies, a cleaning panel is provided inside the fan shroud to facilitate the provision of inlets for cleaning the heat exchanger of the compressor package. Having a cleaning panel is better than having no inlets at all.

[0005] However, challenges arose in removing debris that had fallen to the bottom of the fan shroud area and the subsequent wash water from the pressure flush. Manipulating the wash bar inside the fan shroud to effectively clean the heat exchanger was also difficult.

[0006] Therefore, the need for a device that can conveniently and effectively clean the heat exchanger of an air compressor has not yet been met.

[0007] This invention relates to a hinged cooler for an air compressor, which solves the problems of conventional systems by allowing maintenance and cleaning to be performed on both sides of the heat exchanger, thereby improving cleaning quality and reducing the time required to complete cleaning. Utility Model Content

[0008] This invention is a hinged cooler for compressors (especially portable compressors).

[0009] The unique feature of this concept is that the air heat exchanger is hinged, allowing it to swing out from the envelope of the compressor system to be cleaned. The system typically comprises four main entities: an oil cooler, an aftercooler, hinges, and a frame that bolts them all together and secures the system within the compressor assembly.

[0010] This disclosure relates to a hinged cooler comprising: a housing in which a cooling fluid flows; a first heat exchanger disposed within the housing for cooling the first fluid via the cooling fluid; a second heat exchanger disposed within the housing for cooling the second fluid via the cooling fluid; and a hinge located between the first and second heat exchangers.

[0011] The first heat exchanger rotates about the hinge in a first direction from a first closed position covering the outer shell to a first open position in which the first heat exchanger is moved to the outside of the outer shell. The second heat exchanger rotates about the hinge in a second direction opposite the first direction from a second closed position covering the outer shell to a second open position in which the second heat exchanger is moved to the outside of the outer shell.

[0012] In the first closed position and the second closed position, outer surfaces of the first heat exchanger and the second heat exchanger exposed to the outside of the outer shell are positioned side-by-side in a length direction of the outer shell, and wherein the hinge protrudes from the outer shell to the outside of the outer shell in a width direction of the outer shell.

[0013] Aspects of the present disclosure also relate to a compressor system comprising: a compressor; a fan providing cooling air; an outer shell in which the cooling air flows; an oil heat exchanger disposed within the outer shell for cooling oil of the compressor by the cooling air; an aftercooler heat exchanger disposed within the outer shell for cooling compressed air of the compressor by the cooling air; and a hinge between the oil heat exchanger and the aftercooler heat exchanger.

[0014] The oil heat exchanger rotates about the hinge in a first direction from a first closed position covering the outer shell to a first open position in which the oil heat exchanger is moved to the outside of the outer shell. The aftercooler heat exchanger rotates about the hinge in a second direction opposite the first direction from a second closed position covering the outer shell to a second open position in which the aftercooler heat exchanger is moved to the outside of the outer shell.

[0015] In the first closed position and the second closed position, outer surfaces of the oil heat exchanger and the aftercooler heat exchanger exposed to the outside of the outer shell are positioned side-by-side in a length direction of the outer shell, and wherein the hinge protrudes from the outer shell to the outside of the outer shell in a width direction of the outer shell.

[0016] Aspects of the present disclosure also relate to a hinged cooling device comprising: an outer shell in which a cooling fluid flows; a first heat exchange device disposed within the outer shell for cooling a first fluid by the cooling fluid; a second heat exchange device disposed within the outer shell for cooling a second fluid by the cooling fluid; and a hinge device between the first heat exchange device and the second heat exchange device.

[0017] The first heat exchange device rotates about the hinge device in a first direction from a first closed position covering the outer shell to a first open position in which the first heat exchange device is moved to the outside of the outer shell. The second heat exchange device rotates about the hinge device in a second direction opposite the first direction from a second closed position covering the outer shell to a second open position in which the second heat exchange device is moved to the outside of the outer shell.

[0018] According to example aspects of the present disclosure, a hinged chiller can be provided to facilitate access for cleaning and maintenance by swinging a heat exchanger out of a machine enclosure to address the need for complex access for cleaning the heat exchanger. BRIEF DESCRIPTION OF DRAWINGS

[0019] A general architecture implementing various features of the present disclosure will now be described with reference to the drawings. The drawings and the related description are provided to illustrate example embodiments of the present disclosure and not to limit the scope of the present disclosure. Throughout the drawings, reference numerals are repeated to indicate corresponding or analogous elements throughout the several views.

[0020] Figure 1A An example hinged chiller for an air compressor in a chiller closed position is shown according to an example embodiment.

[0021] Figure 1B An example hinged chiller for an air compressor in a chiller open position is shown according to an example embodiment.

[0022] Figure 2 An example view of a compressor system with a hinged chiller is shown according to an example embodiment.

[0023] Figure 3 An example view of a hinged chiller with a chiller and hinge is shown according to an example embodiment.

[0024] Figure 4 An example of a cross-sectional view of a hinged chiller with a fan of a compressor system is shown according to an example embodiment. DETAILED DESCRIPTION

[0025] The following detailed description provides further details of the drawings and example embodiments of the present application. Reference numbers and descriptions of redundant elements between the drawings are omitted for the sake of clarity. The terms used throughout the description are provided by way of example only and are not intended to be limiting. For example, depending on the desired implementation of those of ordinary skill in the art practicing the present application, the use of the term "automatic" can involve fully automatic or semi-automatic implementations that include user or operator control of certain aspects of the implementation. Furthermore, the use of ordinal terms such as "first," "second," "third," etc. in the specification and claims to indicate order of execution of described actions or items is not meant to limit the scope of the application to only the described order of execution. The actions or items can be rearranged in different orders, or also performed or executed in parallel, without departing from the scope of the present application.

[0026] The example implementations described herein relate to a hinged cooler for a compressor system that can provide a solution to manage the effective cleaning and servicing of the aftercooler heat exchanger and the oil heat exchanger of a compressor system.

[0027] For certain applications, the compressed air provided by the compressor needs to be cooled to a required temperature by an aftercooler before being delivered to the end user.

[0028] In addition, the circulating oil of the air compressor needs to be cooled by an oil heat exchanger before being returned to the compressor in a closed oil circuit.

[0029] Both the aftercooler heat exchanger and the oil heat exchanger can be placed side by side in an enclosure to share the air cooling fluid for cooling the compressed air and the oil respectively.

[0030] This design can be applied to air compressor assemblies, mainly portable machines that require regular cleaning of the heat exchangers (coolers) as they are typically used in challenging environments with dust and debris.

[0031] Other applications can be used for any vehicle or portable or stationary equipment that has a cooling system with heat exchangers that need to be cleaned regularly, such as generators, coolers, air compressors, pumps, compaction machines, earthmoving equipment, loaders, bulldozers, swing loaders, graders, excavators, highway trucks, recreational vehicles, commercial vehicles, passenger vehicles, and trucks, among others.

[0032] The hinged cooler concept can also be used for portable electric air compressors. The hinged cooler is part of the cooling system within the air compressor assembly.

[0033] Figure 1A An example hinged cooler 1 for an air compressor is shown in the cooler closed position. The system shows the oil heat exchanger 10 and the aftercooler heat exchanger 11 located at the back of the compressor system, with the door of the compressor system open, exposing the hinged cooler, and the hinge 12 disposed between the oil heat exchanger 10 and the aftercooler heat exchanger 11.

[0034] Figure 1B An example hinged cooler 1 for an air compressor is shown in the cooler closed position. The system shows the oil heat exchanger 10 and the aftercooler heat exchanger 11 located at the back of the compressor system, with the door of the compressor system open, exposing the hinged cooler, and the hinge 12 disposed between the oil heat exchanger 10 and the aftercooler heat exchanger 11. Figure 1A The cooler closed position is shown.

[0035] Figure 2 An example view of a compressor system 2 is shown according to an example embodiment, having a hinged chiller 1 as shown in Figure 1A and 1B The chiller 1 includes oil heat exchanger 10 and aftercooler heat exchanger 11 in the compressor system 2.

[0036] A hinge 12 is disposed between the oil heat exchanger 10 and the aftercooler heat exchanger 11 to facilitate rotation of each heat exchanger 10 and 11 toward the other heat exchanger 10 and 11.

[0037] A fan 14 provides cooling air into the housing 13 as a cooling fluid for the oil heat exchanger 10 and the aftercooler heat exchanger 11.

[0038] Compressed air provided by the compressor 15 is cooled by the aftercooler heat exchanger 11 before being delivered to an end user from the compressor system 2.

[0039] Oil leaving the compressor 15 flows in a closed loop before returning to the compressor 15, which passes through the oil heat exchanger 10 to be cooled by the cooling air provided by the fan 14.

[0040] A removable frame 16 provides support for securing the oil heat exchanger 10 and the aftercooler heat exchanger 11 into the housing 13.

[0041] Figure 3 An example view of the oil heat exchanger 10, the aftercooler heat exchanger 11, and the hinge 12 disposed between the heat exchangers 10 and 11 is shown according to an example embodiment.

[0042] The hinge 12 includes a first hinge attached to the oil heat exchanger 10 that provides rotation of the oil heat exchanger 10 toward the aftercooler heat exchanger 11.

[0043] Further, the hinge 12 includes a second hinge attached to the aftercooler heat exchanger 11 that provides rotation of the aftercooler heat exchanger 11 toward the oil heat exchanger 10.

[0044] Bolts 17 are disposed near the frame 16 on opposite sides of the oil heat exchanger 10 and the aftercooler heat exchanger 11 to facilitate securing the heat exchangers 10 and 11 to the housing 13 and to facilitate rotation of the heat exchangers 10 and 11 from the housing 13 after the bolts 17 are removed.

[0045] Figure 4 An example of a cross-sectional view of the hinged chiller 1 with the fan 14 of the compressor system is shown according to an example embodiment.

[0046] The oil heat exchanger 10 and the aftercooler heat exchanger 11 share the same cooling air flow provided by the fan 14 for cooling the oil and the air that respectively pass inside the oil heat exchanger 10 and the aftercooler heat exchanger 11.

[0047] The fan 14 is located on the opposite side of the housing 13 with respect to the oil heat exchanger 10 and the aftercooler heat exchanger 11 so that the cooling air flows through the housing 13 before entering the oil heat exchanger 10 and the aftercooler heat exchanger 11.

[0048] The hinge 12 protrudes from the housing 13 to the outside of the housing 13 in the width direction of the housing 13.

[0049] Based on the above configuration, exemplary aspects of the present application relate to a hinged cooler 1 as shown in Figure 1A 、 Figure 1B and Figure 2 .

[0050] The hinged cooler 1 includes a housing 13 in which a cooling fluid flows, a first heat exchanger 10 provided inside the housing 13 for cooling a first fluid by the cooling fluid, a second heat exchanger 11 provided inside the housing 13 for cooling a second fluid by the cooling fluid, and a hinge 12 located between the first heat exchanger 10 and the second heat exchanger 11.

[0051] As shown in Figure 1A and Figure 1B , the first heat exchanger 10 is rotated around the hinge 12 in a first direction from a first closed position covering the housing 13 to a first open position in which the first heat exchanger 10 is moved to the outside of the housing 13.

[0052] Further, the second heat exchanger 11 is rotated around the hinge 12 in a second direction opposite to the first direction from a second closed position covering the housing 13 to a second open position in which the second heat exchanger 11 is moved to the outside of the housing.

[0053] As shown in Figure 2 , the hinged cooler 1 further includes a detachable frame 16 attached to the opposite side of the first heat exchanger 10 and the second heat exchanger 11 with respect to the side adjacent to the hinge 12.

[0054] As shown in Figure 3 , the detachable frame 16 is attached to the opposite side of the first heat exchanger 10 and the second heat exchanger 11 by a plurality of bolts 17 which are detachable for rotating the first heat exchanger 10 and the second heat exchanger 11 around the hinge 12.

[0055] As shown in Figure 3As shown, hinge 12 includes a first hinge attached to the side surface of the first heat exchanger 10 and a second hinge attached to the side surface of the second heat exchanger 11.

[0056] The first hinge and the second hinge are located side by side between the first heat exchanger 10 and the second heat exchanger 11.

[0057] like Figure 4 As shown, the hinged cooler 1 also includes a fan 14, which is disposed on the side of the housing 13 opposite to the side of the housing 13 on which the first heat exchanger 10 and the second heat exchanger 11 are disposed.

[0058] Fan 14 supplies cooling fluid to housing 13 to cool a first fluid flowing in first heat exchanger 10 and a second fluid flowing in second heat exchanger 11.

[0059] like Figure 2 As shown, the first fluid may include oil passing through the compressor 15, and the second fluid may include air compressed in the compressor 15.

[0060] Compressor 15 may include a portable electric compressor.

[0061] like Figure 1B As shown, after the first heat exchanger 10 and the second heat exchanger 11 rotate about the hinge 13, the interior of the housing 13 is exposed, causing the entire first heat exchanger 10 and the second heat exchanger 11 to move to the outside of the housing 13.

[0062] The first heat exchanger 10 surrounds the hinge 12 from Figure 1A The first closed position shown is rotated forward toward the second heat exchanger 11. Figure 1B The first open position is shown.

[0063] The first heat exchanger 10 surrounds the hinge 12 from Figure 1B The first open position shown is rotated backward away from the second heat exchanger 11. Figure 1A The first closed position is shown.

[0064] The second heat exchanger 11 surrounds the hinge 12 from Figure 1A The second closed position shown is rotated forward toward the first heat exchanger 10. Figure 1B The second open position is shown.

[0065] The second heat exchanger 11 surrounds the hinge 12 from Figure 1B The second open position shown is rotated backward away from the first heat exchanger 10. Figure 1A The second closed position is shown.

[0066] exist Figure 2In the first closed position and the second closed position shown, the outer surfaces of the first heat exchanger 10 and the second heat exchanger 11 exposed to the outside of the housing 13 are placed side by side in the length direction of the housing 13.

[0067] The hinge 12 protrudes from the housing 13 to the outside of the housing 13 in the width direction.

[0068] Another exemplary aspect of the invention relates to Figure 2 The compressor system 2 shown.

[0069] The compressor system 2 includes: a compressor 15; a fan 14 that provides cooling air; a housing 13 in which cooling air flows; an oil heat exchanger 10 disposed within the housing 13 for cooling the oil of the compressor 15 by means of cooling air; an aftercooler heat exchanger 11 disposed within the housing 13 for cooling the compressed air of the compressor 15 by means of cooling air; and a hinge 12 located between the oil heat exchanger 10 and the aftercooler heat exchanger 11.

[0070] like Figure 1A and Figure 1B As shown, the oil heat exchanger 10 rotates about the hinge 12 in a first direction from a first closed position covering the housing to a first open position where the oil heat exchanger 10 moves to the outside of the housing 13.

[0071] Aftercooler heat exchanger 11 surrounds hinge 12 along a second direction opposite to the first direction from Figure 1A The second closed position of the cover shown is rotated to Figure 1B The aftercooler heat exchanger 11 shown is moved to a second open position outside the housing 13.

[0072] like Figure 3 As shown, the compressor system 2 also includes a detachable frame 16 attached to the opposite side of the oil heat exchanger 10 and the aftercooler heat exchanger 11 relative to one side of the oil heat exchanger 10 and the aftercooler heat exchanger 11 located adjacent to the hinge 12.

[0073] The detachable frame 16 is attached to the opposite sides of the oil heat exchanger 10 and the aftercooler heat exchanger 11 by a plurality of bolts 17, which are detachable and are used to allow the oil heat exchanger 10 and the aftercooler heat exchanger 11 to rotate about the hinge 12.

[0074] like Figure 3 As shown, hinge 12 includes a first hinge attached to the side surface of oil heat exchanger 10 and a second hinge attached to the side surface of aftercooler heat exchanger 11.

[0075] The first hinge and the second hinge are located side by side between the oil heat exchanger 10 and the aftercooler heat exchanger 11.

[0076] Figure 3 The compressor 15 shown can comprise a portable electric compressor.

[0077] As Figure 3 shown, after the oil heat exchanger 10 and the aftercooler heat exchanger 11 are rotated around the hinge 12, the interior of the housing 13 is exposed to the outside, so that the entire oil heat exchanger 10 and the aftercooler heat exchanger 11 are moved to the outside of the housing 13.

[0078] As Figure 1A and Figure 1B shown, the oil heat exchanger 10 is rotated around the hinge 12 from the first closed position forward towards the aftercooler heat exchanger 11 to the first open position.

[0079] The oil heat exchanger 10 is rotated around the hinge 12 from the first open position backward away from the aftercooler heat exchanger 11 to the first closed position.

[0080] The aftercooler heat exchanger 11 is rotated around the hinge 12 from the second closed position forward towards the oil heat exchanger 10 to the second open position.

[0081] The aftercooler heat exchanger 11 is rotated around the hinge 12 from the second open position backward away from the oil heat exchanger 10 to the second closed position.

[0082] As Figure 2 shown, in the first closed position and the second closed position, the outer surfaces of the oil heat exchanger 10 and the aftercooler heat exchanger 11 exposed to the outside of the housing 13 are placed side by side in the length direction of the housing 13.

[0083] The hinge 12 protrudes from the housing 13 to the outside of the housing 13 in the width direction of the housing 13.

[0084] Based on the above exemplary embodiments, by having the heat exchangers hinged and allowing space for them to swing out from the housing of the machine assembly, this allows full access for cleaning the exchangers so that the cleaning spray and debris from the pressure wash does not fall into the machine frame.

[0085] Furthermore, the cleaning spray and debris falls outside of the machine assembly, where it can easily be properly contained and disposed of. After cleaning, the heat exchangers can easily be swung back to their working position. This improves the quality of the cleaning, as both sides of the heat exchangers can be fully accessed during the cleaning process. It also shortens the total time needed to complete the cleaning, as the exchangers can easily be swung from the working position to the cleaning position and back to the working position.

[0086] Furthermore, the centrally located hinge is notable. When the cooler is attached to the hinge, the hinge and hinge bolts are subjected to a great deal of force when it is opened. This force is transmitted through the bolt structure. This design makes the centrally located hinge frame substantially rigid and is considered a more modern solution than other hinge locations such as hinges located on the extreme sides causing the cooler to swing out to the side. In that case, a strong structure needs to be placed on both sides, doubling the structure, increasing complexity, weight and cost.

[0087] Another unique aspect of the present invention is that the compressor assembly is an electric portable compressor as opposed to a stationary electric compressor or a portable diesel compressor. As a portable electric compressor, the cooling system is simplified compared to a portable diesel compressor because there is no engine radiator and no intercooler, only the necessary compressor oil cooler and aftercooler.

[0088] It is much simpler to swing out two coolers than the additional cooler required for a diesel engine. For stationary electric compressors, they are usually installed inside a building where the air is usually cleaner than for portable compressors, which are usually placed in dirtier environments such as oil refineries or construction sites outside.

[0089] While the application is susceptible to various modifications and alternative forms, specific embodiments thereof have been shown by way of example in the drawings and are herein described in detail. It should be understood, however, that the description herein of specific embodiments is not intended to limit the application to the particular forms disclosed.

[0090] The above detailed description has set forth various example embodiments of the devices and / or processes via the use of figures, diagrams, and examples. As will be appreciated, each of the figures, diagrams, and examples can encompass structures and means for performing the same functions and / or operations. While certain example embodiments have been described, these embodiments have been presented by way of example only, and are not intended to limit the scope of the protection. Indeed, the novel methods and apparatuses described herein can be embodied in a variety of other forms. Furthermore, various omissions, substitutions and changes in the form of the devices and systems described herein can be made without departing from the spirit of the protection. The accompanying claims and their equivalents are intended to cover such forms or modifications as would fall within the scope and spirit of the protection.

Claims

1. A hinged cooler characterized by, Comprising: a housing in which a cooling fluid flows; a first heat exchanger disposed within the housing for cooling a first fluid by the cooling fluid; a second heat exchanger disposed within the housing for cooling a second fluid by the cooling fluid; and a hinge between the first heat exchanger and the second heat exchanger, wherein the first heat exchanger rotates about the hinge in a first direction from a first closed position covering the housing to a first open position in which the first heat exchanger moves outside of the housing, and wherein the second heat exchanger rotates about the hinge in a second direction opposite the first direction from a second closed position covering the housing to a second open position in which the second heat exchanger moves outside of the housing. Further comprising:

2. The hinged chiller of claim 1, wherein, a detachable frame attached to opposite sides of the first heat exchanger and the second heat exchanger relative to a position adjacent to the hinge. The detachable frame is attached to the opposite sides of the first heat exchanger and the second heat exchanger by a plurality of bolts that are detachable for rotating the first heat exchanger and the second heat exchanger about the hinge.

3. The hinged chiller of claim 2, wherein, The hinge comprises:

4. The hinged chiller of claim 1, wherein, a first hinge attached to a side surface of the first heat exchanger; and a second hinge attached to a side surface of the second heat exchanger, and wherein the first hinge and the second hinge are located side by side between the first heat exchanger and the second heat exchanger. Further comprising:

5. The hinged chiller of claim 1, wherein, a fan disposed on a side of the housing opposite a side of the housing on which the first heat exchanger and the second heat exchanger are disposed, wherein the fan provides the cooling fluid to the housing for cooling the first fluid flowing within the first heat exchanger and the second fluid flowing within the second heat exchanger. The first fluid comprises oil by a compressor, and the second fluid comprises air compressed in the compressor.

6. The hinged chiller of claim 5, wherein, The compressor comprises a portable electric compressor.

7. The hinged chiller of claim 6, wherein, After the first heat exchanger and the second heat exchanger are rotated about the hinge, an interior of the housing is exposed to an exterior such that the entire first heat exchanger and the second heat exchanger move outside of the housing.

8. The hinged cooler of claim 1, wherein, The first heat exchanger rotates about the hinge forward from the first closed position toward the second heat exchanger to the first open position, and 9. The hinged cooler of claim 1, wherein, wherein the first heat exchanger rotates about the hinge backward from the first open position away from the second heat exchanger to the first closed position. The second heat exchanger rotates about the hinge forward from the second closed position toward the first heat exchanger to the second open position, and 10. The hinged chiller of claim 9, wherein, wherein the second heat exchanger rotates about the hinge backward from the second open position away from the first heat exchanger to the second closed position. ​ 11. The hinged chiller of claim 1, wherein, In the first closed position and the second closed position, outer surfaces of the first heat exchanger and the second heat exchanger exposed to the outside of the housing are positioned side by side in a length direction of the housing, and wherein the hinge protrudes from the housing to the outside of the housing in a width direction of the housing.

12. A compressor system characterized by, Comprise: a compressor; a fan that provides cooling air; a housing in which the cooling air flows; an oil heat exchanger provided within the housing for cooling oil of the compressor by the cooling air; a rear cooler heat exchanger provided within the housing for cooling compressed air of the compressor by the cooling air; and a hinge between the oil heat exchanger and the rear cooler heat exchanger, wherein the oil heat exchanger rotates around the hinge in a first direction from a first closed position covering the housing to a first open position in which the oil heat exchanger moves to the outside of the housing, and wherein the rear cooler heat exchanger rotates around the hinge in a second direction opposite to the first direction from a second closed position covering the housing to a second open position in which the rear cooler heat exchanger moves to the outside of the housing. Further comprise:

13. The compressor system of claim 12, wherein, a detachable frame attached to opposite sides of the oil heat exchanger and the rear cooler heat exchanger relative to a side adjacent to the hinge. The detachable frame is attached to the opposite sides of the oil heat exchanger and the rear cooler heat exchanger by a plurality of bolts that are detachable for rotating the oil heat exchanger and the rear cooler heat exchanger around the hinge.

14. The compressor system of claim 13, wherein, The hinge comprises:

15. The compressor system of claim 12, wherein, a first hinge attached to a side surface of the oil heat exchanger; and a second hinge attached to a side surface of the rear cooler heat exchanger, and wherein the first hinge and the second hinge are positioned side by side between the oil heat exchanger and the rear cooler heat exchanger. The compressor comprises a portable electric compressor.

16. The compressor system of claim 12, wherein, After the oil heat exchanger and the rear cooler heat exchanger are rotated around the hinge, an inside of the housing is exposed to the outside such that the entire oil heat exchanger and the rear cooler heat exchanger move to the outside of the housing.

17. The compressor system of claim 12, wherein, The oil heat exchanger rotates around the hinge from the first closed position forward toward the rear cooler heat exchanger to the first open position, and 18. The compressor system of claim 12, wherein, wherein the oil heat exchanger rotates around the hinge from the first open position backward away from the rear cooler heat exchanger to the first closed position. The rear cooler heat exchanger rotates around the hinge from the second closed position forward toward the oil heat exchanger to the second open position, and 19. The compressor system of claim 18, wherein, wherein the rear cooler heat exchanger rotates around the hinge from the second open position backward away from the oil heat exchanger to the second closed position. In the first closed position and the second closed position, outer surfaces of the oil heat exchanger and the rear cooler heat exchanger exposed to the outside of the housing are positioned side by side in a length direction of the housing, and 20. The compressor system of claim 12, wherein, wherein the hinge protrudes from the housing to the outside of the housing in a width direction of the housing. The hinge protrudes from the housing to the outside of the housing in a width direction of the housing. The hinge protrudes from the housing to the outside of the housing in a width direction of the housing.

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