Beam-shaped container, frame and electric mobile compressor

Abstract

A beam-like container, a frame and an electric mobile compressor, the beam-like container being configured to accommodate a battery pack for an electric mobile compressor (100), the battery pack comprising a set of rechargeable batteries (201) adapted to power an electric motor (114) for driving a compressor element (119) of the mobile compressor (100), the motor is permanently supported by the frame (102), the beam-shaped container (101, 200) further comprises a set of brackets (210, 211) located outside the same surface, said brackets being positioned to support the frame (102), and wherein each bracket (210, 211) comprises a set of connecting elements configured to reversibly connect the container (101, 200) to the frame (102).

Description

Technical Field

[0001] The utility model relates to a beam-shaped container, a frame and an electric mobile compressor, and more specifically to a modular structure of an electric compressor. Background Art

[0002] A compressor is a machine designed to produce compressed gas (e.g. compressed air). The compressed gas at a certain working pressure is then used in a range of applications, such as driving other machines, such as pneumatic handheld rock drills and drilling rigs.

[0003] Such handheld rock drills and drilling rigs are often used in places where there is no permanent compressed air network, such as construction sites. Usually, mobile compressors are used in these places. The term "mobile" is therefore understood to mean that such compressors can be moved with or without the aid of transport means and / or lifting means. In other words, a mobile compressor is a compressor that is not designed for stationary use at a fixed location.

[0004] The mobile compressor can be driven by a diesel engine, so that the mobile compressor can operate independently. However, since diesel engines emit combustion gases and are noisy, there is a tendency to replace these diesel engines with electric motors. The mobile compressor can then be powered, for example, by a battery pack integrated therein. In other words, the electric energy for driving the compressor is provided by the battery pack.

[0005] To charge the batteries of the battery pack, the electrical grid may be used (if available) and / or the batteries may be charged at a location other than where the mobile compressor is used.

[0006] Such an electric mobile compressor is disclosed in BE1024040A1. As mentioned above, the energy supply from the power grid can be supplemented by a battery pack. When the mobile compressor is not in operation but connected to the power grid, the batteries of the battery pack can be charged. In the absence of a power grid, the mobile compressor can be powered by the electrical energy obtained from the charged batteries.

[0007] When electrical energy is drawn from the batteries, the batteries become hot due to internal losses, and the heat generated can be removed safely and efficiently by a suitable cooling system. Subsequently, when the batteries are discharged, for example reaching a discharge limit, the batteries are recharged from the grid. After the batteries have been recharged, electrical energy can again be drawn from the batteries to power the compressor. It will be clear that the cycle of discharge and recharge can be repeated. However, it will be clear that it is an inherent characteristic of a group of batteries that after a number of cycles, the health of the group of batteries may deteriorate.

[0008] The health of the battery pack is understood to mean the degree to which the theoretical or optimal capacity that the battery can absorb is compared to its actual value. This optimal value is generally achievable when the battery pack is still in its initial unused state, and may also depend on the atmospheric characteristics of the environment in which the battery is installed. As described above, the actual capacity will decrease due to degradation of the components in the battery, excessive discharge, unwelcome heating and / or other undesirable or unavoidable effects, and therefore the health condition will also deteriorate.

[0009] The disadvantage of this case is that when the health of the battery pack falls below a certain critical value, the battery pack will have to be replaced. In this case, the available capacity will not be sufficient to be able to work with the compressor without problems. In extreme cases, the battery itself will no longer be able to be recharged at all. When this happens, the battery pack or at least part of the batteries will have to be replaced.

[0010] Replacing these batteries is a labor-intensive operation which should preferably be carried out in a location provided for this purpose, such as an enclosed and covered commercial space. This prevents dust and other unwanted contaminants from entering the compressor. If this were to occur, proper operation would no longer be guaranteed. However, this is again a disadvantage, since the compressor would then be unusable for a certain period of time.

[0011] The object of the present invention is therefore to provide a compressor which overcomes one or more of the above-mentioned disadvantages of the prior art solutions. More specifically, the object of the present invention is to provide an electric mobile compressor in which the time for technical intervention due to a malfunction or other defect is limited compared to the electric mobile compressors known in the prior art. Utility Model Content

[0012] The utility model provides a beam-shaped container, which is configured to accommodate a battery pack for an electric mobile compressor, wherein the battery pack includes a group of rechargeable batteries, and the rechargeable batteries are suitable for providing power to an electric motor, and the electric motor is used to drive a compressor element of the mobile compressor, and the motor is permanently supported by a frame, wherein the beam-shaped container also includes a group of brackets located outside the same surface, the brackets are positioned to support the frame, and each bracket includes a group of connecting elements, and the connecting elements are configured to reversibly connect the container to the frame.

[0013] In one configuration, the connection element includes at least one of a bolt-nut connection, a clamp connection, and a hook-and-eye fastener.

[0014] In one configuration, the beam-shaped container further comprises a lifting arm configured to lift the container.

[0015] In one configuration, the container is also configured to house a cooling system configured to cool the battery pack and comprising: a set of conduits including a coolant configured to absorb heat from the battery pack; a pump configured to circulate the coolant through the set of conduits; and a heat exchanger configured to release heat absorbed by the coolant to the environment.

[0016] In one configuration, the container is further configured to house a cooler, and wherein the heat exchanger corresponds to a condenser of the cooler.

[0017] In one configuration, the container is further configured to contain:

[0018] - an onboard charger configured to provide power from the grid to the power distribution device; and

[0019] - a battery management system configured to support power exchange between the power distribution device and the battery pack; and

[0020] - A controller configured to coordinate the exchange of power between the grid, the battery pack and the electric motor.

[0021] In one configuration, the beam-shaped container further comprises a set of wheels and a tie rod.

[0022] The utility model also provides a frame, which is configured to permanently support a compressor element and a motor, wherein the motor is configured to drive the compressor element, and the frame is also configured to be supported and reversibly connected to the beam-shaped container described above.

[0023] In one configuration, the frame is further configured to support a shield disposed on the frame to shield the compressor element and the motor.

[0024] In one configuration, the frame further includes a lifting arm configured to lift the frame.

[0025] The utility model also provides an electric mobile compressor, which comprises the beam-shaped container and the frame mentioned above.

[0026] According to the utility model, the above-mentioned purpose is achieved by providing a beam-shaped container according to the first aspect of the utility model, wherein the beam-shaped container is configured to accommodate a battery pack for an electric mobile compressor, the battery pack comprising a group of rechargeable batteries, the rechargeable batteries being suitable for providing power to an electric motor, the motor being used to drive a compressor element of the mobile compressor, the motor being permanently supported by a frame, wherein the beam-shaped container also comprises a group of brackets located outside the same surface, the brackets being positioned to support the frame, and wherein each bracket comprises a group of connecting elements, the connecting elements being configured to reversibly connect the container to the frame.

[0027] The beam-shaped container is configured to house a battery pack for an electric mobile compressor, wherein the electric mobile compressor is configured to provide compressed air in places where there is usually no compressed air network (such as construction sites). In other words, using the beam-shaped container including the battery, a mobile compressor can be driven to provide such compressed air.

[0028] The battery pack comprises a group of rechargeable batteries suitable for providing electrical energy to the electric motor. These batteries can be connected in series, in parallel or in a combination of both, thereby providing a DC voltage to a power distribution device. The power distribution device is a voltage rail (also called a busbar), or a connecting housing of a variable frequency drive inverter, VFD or the like, to distribute power between various devices of the compressor or various devices supporting the compressor. The power distribution device can be part of the battery pack and can therefore also be integrated into the beam-shaped container, or it can be external to it. However, in both cases, it should be understood that the group of batteries are configured so that they can provide voltage to the power distribution device.

[0029] The electric motor is a device connected to the power distribution device, optionally via an inverter. When in operation, user current will flow from the power distribution device, optionally via a VFD, to the electric motor. In addition, the electric motor will drive a compressor element to provide compressed air.

[0030] For example, when the compressor is a screw compressor type compressor, the compressor element is a screw. It should also be understood that the type of compressor element is not limited, and other compressor elements can be used to deliver compressed gas at a predetermined pressure. The value of this pressure also depends on the intended application and may also be adjustable.

[0031] Furthermore, there may be a mechanical coupling between the motor and the driven compressor element (such as a gearbox). In other words, the drive of the compressor element does not have to be driven directly by the motor, but a mechanical coupling may also be provided between them. This will convert the speed of the motor into a speed suitable for the compressor element.

[0032] Furthermore, the type of motor is also not limited to the disclosed utility model. This can be a three-phase asynchronous motor or a three-phase permanent magnet synchronous motor. In these cases, there will be a frequency converter between the power distribution system and the motor. This frequency converter, also known as a frequency controller, inverter or variable speed drive VSD, then converts the DC voltage provided by the battery pack from the power distribution device into an AC voltage with a certain frequency suitable for the three-phase motor. In addition, both the frequency and the AC voltage can be changed in order to deliver a certain torque to the compressor element, and this depends on the pressure required to compress the gas.

[0033] Alternatively, the motor may be of the DC motor type. The DC motor may then be connected directly to the power distribution device, however, there will usually be a DC / DC converter between the power distribution device and the DC motor in order to be able to apply a terminal voltage suitable therefor.

[0034] Additionally, it should be noted that the motor and compressor elements are not housed in the beam-like container. In other words, the beam-like container is configured to house the battery pack, not the motor that can be powered by the battery pack. The compressor element and motor can be permanently supported by a frame that is not part of the container, as will be discussed further. It should also be understood that the frame is also configured to support other equipment for supporting the operation of the motor and compressor elements, as will be explained further.

[0035] The beam-shaped container also comprises a set of brackets located outside the same surface of the container. This surface is understood to mean the top side of the container when the compressor is placed on a base surface during its normal operation. These brackets are also positioned so that they provide a balanced support for the frame carrying the compressor elements and the electric motor.

[0036] For example, the bracket is a curved edge of the top side of the container and then forms a part of the container. Alternatively, these brackets can also be supporting members permanently attached to the top side. In addition, as already discussed, these brackets are positioned to support the frame so that the frame is supported. This means that the brackets are distributed on the side of the container so that the distribution of forces from the frame generated by supporting the motor, the compressor elements and the supporting equipment is distributed on the container in a balanced and uniform manner. As a result, the weight or force generated by supporting the frame will be distributed on the structure or frame of the container.

[0037] In addition, the bracket is also provided with a connection element, whether integral with the container or as an additional element. The connection element is one of the group consisting of a bolt-nut connection, a clamp connection, a hook-eye fastener or other connection elements that connect mechanical parts together.

[0038] Furthermore, the set of connecting elements is characterized in that the connecting elements can be reversibly connected to a frame supporting the electric motor and the compressor element.

[0039] The advantage is that the battery pack can be considered as a separate or detachable component from the other components of the compressor. This makes it possible to virtually disconnect the electric motor with the compressor elements from the battery pack. For example, when the battery pack is defective and needs to be replaced and / or requires temporary technical maintenance, the frame can be disconnected from the beam-shaped container. A second beam-shaped container including the battery pack can then be used to replace the first container in an effective and simple manner. The reversible coupling has to be temporarily disconnected in order to subsequently replace the first container with the second container. The battery pack to be replaced or maintained can then be taken to a separate location, while work can continue with the second container.

[0040] According to an embodiment, the container further comprises a lifting arm configured to lift the container.

[0041] In a normal arrangement, the lifting arm is mechanically connected to the container at the top side of the container. In addition, the lifting arm is connected to the container so that the container can be lifted when an upward force is applied thereto, so that the battery pack and other equipment present (if necessary) can be displaced in a safe manner.

[0042] Furthermore, according to an embodiment, the container is configured to house a cooling system configured to cool a battery pack and comprising: a set of conduits including a coolant configured to absorb heat from the battery pack; a pump configured to circulate the coolant through the set of conduits; and a heat exchanger configured to release heat absorbed by the coolant to an environment.

[0043] The cooling system comprises a set of conduits configured to absorb heat from the battery pack. Thus, the conduits are positioned so that the heat generated by the battery can be effectively and safely absorbed by the coolant present in these conduits. It should also be understood that the set of conduits may comprise a single conduit wound between and on the batteries. Alternatively, the set of conduits may consist of several conduits arranged in parallel. Furthermore, in this document, the term "conduit group" is understood to mean a single conduit, or a plurality of conduits arranged in parallel and connected to each other to allow a coolant to flow through. The coolant is preferably a liquid, but may also be a gas, and is therefore a cooling medium known in the prior art.

[0044] The cooling system also includes a pump for circulating a refrigerant through the set of conduits and a heat exchanger configured to release the heat absorbed from the battery pack to an environment in which a compressor is provided. The heat exchanger has a coolant as a first medium, which includes heat from the battery pack. The second medium of the heat exchanger is, for example, ambient air, to which the heat from the battery pack can be released to cool the battery pack. The battery pack can also be cooled to ambient temperature.

[0045] Furthermore, according to an embodiment, the container is configured to accommodate a cooler, wherein the heat exchanger of the cooling system corresponds to a condenser of the cooler.

[0046] When absorbing heat, the refrigerant of the cooling system can undergo a phase change. According to a preferred embodiment, the cooling system also includes a cooler, wherein the heat exchanger of the cooling system corresponds to the condenser of the cooler. The advantage of the cooler is that it can be cooled below the ambient temperature. The cooler comprises a pump or a compressor, a condenser, an expansion component, an evaporator and a refrigerant. In the latter case, the coolant is an active coolant.

[0047] In addition, according to one embodiment, the container is configured to accommodate: an on-board charger, which is configured to provide power to the above-mentioned distribution device, wherein the on-board charger can be powered by the power grid; a battery management system, which is configured to support power exchange between the distribution device and the battery pack; and a controller, which is configured to coordinate the power exchange between the power grid, the battery pack and the electric motor, which provides power to the compressor element.

[0048] The onboard charger is configured to convert the power originating from the grid into a suitable value to make it available to the distribution device. Typically, the alternating current from the grid will be converted into direct current. In this case, the current will flow from the grid through the onboard charger to the distribution device to make the power available to various electrical appliances connected to the distribution device. Another device connected to the distribution system is a battery management system. The battery management system is configured to support the exchange of power between the distribution device and the components of one or more rechargeable batteries by monitoring the state of charge of the battery pack. To support this, the current, voltage and temperature of one or more batteries are measured and data is exchanged with the controller based on this. The controller then calculates the set point of the onboard charger and sends the result to the onboard charger. This allows the power exchange to be carried out in an optimal way. The battery management system will also include safety functions to protect the battery from being discharged too deeply. For example, when there is no available grid, that is, when the compressor works autonomously, discharge will occur when another electrical appliance connected to the distribution device (such as an electric motor driving the compressor element) consumes electrical energy. In other words, the battery management system is a system known in the prior art. Therefore, it will ensure that the batteries of the battery pack remain in a safe and reliable state. This is achieved, among other things, by monitoring the state of charge and ensuring that the battery is not discharged too deeply.

[0049] According to one embodiment, the beam-shaped container further comprises a set of wheels and a drawbar. This allows the container to be transported by vehicle on public roads to a location where the compressor of the set of batteries connected to the container is to be put into use.

[0050] According to a second aspect of the invention, a frame is disclosed, the frame being configured to permanently support a compressor element and a motor configured to drive the compressor element, the frame being further configured to support and be reversibly connected to a beam-like container according to the first aspect of the invention.

[0051] According to an embodiment, the frame is further configured to support a shield disposed on the frame to shield the compressor element and the motor.

[0052] The shield or housing is used to shield and protect the compressor elements and the motor. It should also be understood that the shielding and protection is also used for peripheral equipment to support the operation of the compressor, motor, buffer tank (if present) and / or other equipment (if present). The shield will further ensure that the battery pack in the container is also protected.

[0053] Furthermore, according to an embodiment, the frame may further include a lifting arm configured to lift the frame by, for example, a crane.

[0054] According to a third aspect of the present utility model, an electric mobile compressor is disclosed, which comprises the beam-shaped container according to the first aspect of the present utility model and the frame according to the second aspect of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] The present invention will be further described with reference to the accompanying drawings, wherein

[0056] Figure 1A An electric mobile compressor according to an embodiment of the utility model is shown; and

[0057] Figure 1B Shown according to Figure 1A An electrically powered portable compressor having no casing or shield; and

[0058] Figure 2A A first view of a beam-shaped container for accommodating a battery pack according to an embodiment of the present invention is shown; and

[0059] Figure 2B Shown according to Figure 2A Second view of the beam-like container. DETAILED DESCRIPTION

[0060] The present invention will be described with respect to certain embodiments and with reference to certain drawings, but the invention is not limited thereto but only by the claims. The drawings described are only schematic and not restrictive. In the drawings, for illustrative purposes, the size of certain elements may be exaggerated and not drawn to scale. Dimensions and relative dimensions do not necessarily correspond to actual, real embodiments of the present invention.

[0061] In addition, the terms first, second, third, etc. are used in the specification and claims to distinguish similar elements and are not necessarily intended to describe a sequential or chronological order. The terms are interchangeable where appropriate, and the embodiments of the present invention may be used in a sequence other than that described or illustrated herein.

[0062] In addition, the terms upper, lower, above and below, etc. in the specification and claims are used for descriptive purposes and not necessarily for describing relative positions. The terms used in this way are interchangeable under appropriate circumstances, and the embodiments of the present invention described herein can be used in orientations other than those described or shown herein.

[0063] Furthermore, although various embodiments are referred to as "preferred embodiments," these should be interpreted as exemplary methods of implementing the invention, and not as limitations on the scope of the invention.

[0064] The term "comprising" used in the claims should not be interpreted as being limited to the components or steps set forth thereafter; the term does not exclude other elements or steps. The term should be interpreted as specifying the presence of the referenced features, elements, steps or components, but does not exclude the presence or addition of one or more other features, elements, steps or components or groups thereof. Therefore, the scope of the expression "a device comprising components A and B" should not be limited to a device consisting only of components A and B. The meaning is that, for the present utility model, only components A and B of the device are listed, and the claims are further interpreted to also include equivalents of these components.

[0065] Figure 1A An electric mobile compressor 100 is shown. The mobile compressor 100 includes a set of wheels 105 and a tie rod 106 for moving the compressor 100 using a suitable vehicle. The compressor 100 also includes a beam-like container 101, a frame 102, and a housing 103, the beam-like container being located on the bottom side of the compressor 100. It should also be noted that the wheels 105 and the tie rod 106 are connected to the container 101.

[0066] like Figure 2A and Figure 2B As further shown, the beam-shaped container 101 is configured to accommodate a battery pack.

[0067] The frame 102 is configured to permanently support the components of the compressor 100. Figure 1B , which shows that Figure 1A The same compressor 100 in which the housing 103 has been removed 111 , these components are visible.

[0068] The first component is a compressor element 119 combined with an electric motor 114. The electric motor is configured to drive the compressor element to be able to provide compressed gas. For this purpose, ambient air is used and the compressed gas is supplied at a predetermined pressure and / or flow rate. The electric motor is, for example, a three-phase asynchronous motor, but it can also be another type of electric motor, such as a DC motor, as described above.

[0069] Although not shown, there may also be a mechanical coupling between the electric motor 114 and the compressor element 119. This coupling is, for example, a gearbox and then ensures that the speed of the electric motor is converted into a speed suitable for driving the compressor element 119.

[0070] Furthermore, the compressor 100 is provided with a fan 116, which is located next to the heat exchanger 113 of the oil cooler, for cooling the compressor element 119. Furthermore, there is a storage tank or buffer tank as a buffer for storing the compressed gas.

[0071] It should also be understood that there are other components and devices to support the normal operation of the compressor 100, and these components and devices are known to those skilled in the art.

[0072] A lifting arm 117 is also connected to the frame 102, which can lift the frame 102 together with the components just discussed and other components. The frame 102 with these components can be disconnected from the beam container 101.

[0073] Reference again Figure 1A As previously mentioned, the housing 103 is used to protect the components of the compressor 100. The housing 103 may be connected to the frame 102 by a clamp, such as the clamp 110, whereby the housing 103 may then be removed by releasing the clamp 110, for example for maintenance.

[0074] Furthermore, the housing 103 has recesses 104, 107 on its opposite sides. Via these recesses 104, 107, ambient air can then flow through the housing 103 and thus through the components. A fan 116 can further force the ambient air to flow by sucking or blowing air.

[0075] exist Figure 2A In FIG. 1 , a beam-shaped container 101 , 200 is shown located at the bottom side of a mobile compressor 100. This illustration 200 corresponds to a frame 102 with associated equipment permanently attached to the frame and a case 103 disconnected from the container 101 , 200.

[0076] The beam-shaped container 101, 200 comprises a battery pack including a set of rechargeable batteries 201 adapted to provide power to the electric motor 114 for driving the compressor element 119. Although not shown, a power distribution device is provided for this purpose, thereby connecting the various devices together in such a way that they can exchange power.

[0077] In addition, the container 101, 200 includes a battery management system 205 and a controller. The controller is configured to communicate with the onboard charger and can further communicate with the inverter and the battery management system 205. If there is no inverter, then when the motor 114 is a DC motor type, it is directly connected to the power distribution device. The controller can also be located in the container 101, 200.

[0078] With the help of the battery management system 205, the controller will also be able to determine the maximum charging current for charging the components of the battery 201. In this case, the battery management system 205 monitors the charging state of the battery 201 and communicates to the controller what the maximum charging current is. The controller will then control the onboard charger based on this so that current can be drawn from the grid for charging.

[0079] Furthermore, the battery pack comprises a cooling system 203 for cooling the set of rechargeable batteries 201. The cooling system 203 comprises a set of ducts 204 in which a coolant is contained and circulated by a pump. Furthermore, there is a heat exchanger 202 located outside the container 101 and perpendicular to the container. Referring again to Figure 1A and Figure 1B The heat exchanger 202 corresponds to reference numeral 112 and is therefore not part of a component permanently connected to the frame 102 , but is part of a cooling system for the battery pack accommodated in the container 101 , 200 .

[0080] The heat exchanger 202 is then located in the air flow that can flow between the recesses 104 and 107, whether or not it is forced by the fan 116. Therefore, the inhaled air will then flow through the heat exchanger 112, 202 to cool the air. The heat exchanger 112, 202 also includes a rectangular cooling body and is arranged transversely to these flow path directions so that the cooling surface intersects the flow path to the greatest extent to facilitate effective cooling.

[0081] Furthermore, the beam-shaped container 101 can be completely disconnected from the frame 102. This means that the battery pack and related equipment can be completely disconnected from the other components of the compressor supported by the frame 102. However, in order to connect the frame 102 to the container 101, a bracket is provided on the top side of the container 101.

[0082] Such a support is, for example, a curved edge on the top side, as indicated by reference numerals 210 and 211. In addition, drilled holes are provided for inserting bolts. The frame 102 then also has holes arranged at corresponding locations, with which the frame 102 can be connected to the container 101 by means of a combination of bolts and nuts passing through such holes. The supports with holes are then distributed on the outer edge of the top side of the container 101. The forces originating from the frame 102 are then distributed on the edge of the container 101 and on the supports. In addition, both 101 and 102 are permanently but reversibly connected to each other by means of a bolt-nut connection.

Claims

1. A beam-shaped container (101, 200), characterized in that: The beam-shaped container is configured to accommodate a battery pack for an electric mobile compressor (100), the battery pack comprising a set of rechargeable batteries (201), the rechargeable batteries being suitable for providing power to an electric motor (114), the electric motor being used to drive a compressor element (119) of the electric mobile compressor (100), the electric motor being permanently supported by a frame (102), wherein the beam-shaped container (101, 200) further comprises a set of brackets (210, 211) located outside the same surface, the brackets being positioned to support the frame (102), and wherein each bracket (210, 211) comprises a set of connecting elements, the connecting elements being configured to reversibly connect the beam-shaped container (101, 200) to the frame (102).

2. The beam-shaped container (101, 200) according to claim 1, characterized in that: The connection element includes at least one of a bolt-nut connection, a clamp connection, and a hook-and-eye fastener.

3. The beam-shaped container (101, 200) according to claim 1, characterized in that: The beam-shaped container further comprises a lifting arm configured to lift the beam-shaped container (101, 200).

4. The beam-shaped container (101, 200) according to claim 1, characterized in that: The beam-shaped container (101, 200) is also configured to accommodate a cooling system, the cooling system (203) being configured to cool the battery pack and comprising: a set of conduits (204), the set of conduits comprising a coolant, the coolant being configured to absorb heat from the battery pack; a pump, the pump being configured to circulate the coolant through the set of conduits (204); and a heat exchanger (112, 202), the heat exchanger being configured to release heat absorbed by the coolant to the environment.

5. The beam-shaped container (101, 200) according to claim 4, characterized in that: The cooling system further comprises a cooler, wherein the heat exchanger of the cooling system corresponds to a condenser of the cooler.

6. The beam-shaped container (101, 200) according to any one of claims 1 to 5, characterized in that: The beam container is further configured to accommodate: - an onboard charger configured to provide power from the grid to the power distribution device; and - a battery management system (205) configured to support power exchange between the power distribution device and the battery pack; as well as - a controller configured to coordinate the exchange of power between the grid, the battery pack and the electric motor (114).

7. The beam-shaped container (101, 200) according to any one of claims 1 to 5, characterized in that: The beam-shaped container also includes a tie rod (106) and a set of wheels (105).

8. A frame (102), characterized in that: The frame is configured to permanently support a compressor element (119) and a motor (114) configured to drive the compressor element, and the frame (102) is further configured to support and reversibly connect to a beam-shaped container (101, 200) according to any one of claims 1-7.

9. The frame (102) according to claim 8, characterized in that The frame is also configured to support a shield (103) disposed on the frame to shield the compressor element (119) and the motor (114).

10. The frame (102) according to any one of claims 8 to 9, characterized in that The frame also includes a lifting arm (117) configured to lift the frame (102).

11. An electric portable compressor (100), characterized in that: The electric mobile compressor comprises a beam-shaped container (101, 200) according to any one of claims 1 to 7 and a frame (102) according to any one of claims 8 to 10.

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