Electrical isolation of hazardous voltage from vehicle powered transportation climate control system

Abstract

A transportation climate control system configured to provide climate control within a climate control space towed by a vehicle is provided. A transport climate control system includes an electrically isolated box configured to house a drive module and a compressor. The drive module receives power from a vehicle power network including a rechargeable energy storage system (RESS) to power the compressor. The drive module and the compressor are electrically isolated at a climate control system potential reference that is different from a potential reference of the vehicle chassis to which the electrically isolated box is connected.

Description

Technical Field

[0001] The present invention generally relates to a vehicle powered transportation climate control system for providing climate control within a climate controlled space towed by a vehicle or contained on a chassis. More specifically, the present invention relates to a method and system for isolating hazardous voltages from a vehicle powered transportation climate control system for providing climate control within a climate controlled space towed by a vehicle or contained on a chassis. Background Art

[0002] A transport climate control system may include, for example, a transport refrigeration system (TRS). A TRS is typically used to control environmental conditions (e.g., temperature, humidity, air quality, etc.) within a cargo space of a transport unit (e.g., a truck, a container (e.g., a container on a flatbed, an intermodal container, etc.), a box truck, a semi-trailer tractor, a bus, or other similar transport unit). The TRS may maintain one or more environmental conditions of the cargo space to maintain cargo (e.g., produce, frozen foods, pharmaceuticals, etc.). Summary of the invention

[0003] The present invention generally relates to a vehicle powered transportation climate control system for providing climate control within a climate controlled space towed by a vehicle or contained on a chassis. More specifically, the present invention relates to a method and system for isolating hazardous voltages from a vehicle powered transportation climate control system for providing climate control within a climate controlled space towed by a vehicle or contained on a chassis.

[0004] In one embodiment, the present invention describes a transport climate control system configured to provide climate control within a climate controlled space towed by a vehicle. The transport climate control system includes: one or more climate control circuit components, including a compressor; and a drive module configured to receive power from a vehicle power network to power the compressor. The vehicle power network includes a rechargeable energy storage system (RESS). The transport climate control system also includes an electrically isolated box configured to accommodate the drive module and the one or more climate control circuit components, and electrically isolate the drive module and the one or more climate control circuit components at a climate control system potential reference. The climate control system potential reference is different from the potential reference of the vehicle chassis to which the electrically isolated box is connected.

[0005] In one embodiment, the present invention describes a method for electrically isolating hazardous voltages from a vehicle-powered transport climate control system for providing climate control within a climate-controlled space towed by a vehicle. The method includes supplying power to one or more climate control circuit components of the vehicle-powered transport climate control system via a drive module. The one or more climate control circuit components include a compressor. The drive module is configured to receive power from a vehicle power network including a rechargeable energy storage system (RESS). The method also includes electrically isolating the drive module and the one or more climate control circuit components via an electrical isolation box at a climate control system potential reference. The climate control system potential reference is different from the potential reference of the vehicle chassis to which the electrical isolation box is connected.

[0006] In one embodiment, the present disclosure describes an electrically isolated box including one or more walls defining an at least partially enclosed space, the electrically isolated box including one or more plastic or metal materials at the one or more walls, and a mounting mechanism within the at least partially enclosed space. The mounting mechanism is configured to support one or more climate control circuit components and electrically isolate the one or more climate control circuit components at a climate control system electrical potential reference that is different from a potential reference of a vehicle chassis to which the electrically isolated box is connected.

[0007] Various aspects and advantages of exemplary embodiments of the present invention have been summarized. The above summary is not intended to describe each illustrated embodiment. Other features and aspects will become apparent by considering the following detailed description and accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Reference is made to the accompanying drawings which form a part hereof, and which illustrate embodiments in which the systems and methods described in this specification may be implemented.

[0009] Figure 1A is a side view of a truck having a vehicle powered transportation climate control system according to an embodiment.

[0010] Figure 1B is a side view of a minivan with a vehicle powered transportation climate control system according to an embodiment.

[0011] Figure 1C is a side perspective view of a climate controlled transport unit having a trailer with a vehicle powered transport climate control system and attached to a tractor vehicle according to an embodiment.

[0012] Figure 1D is a perspective view of a passenger vehicle including a transportation climate control system according to one embodiment.

[0013] Figure 2A schematic block diagram of one embodiment of a power system for powering a vehicle powered transportation climate control system is illustrated in accordance with an embodiment.

[0014] Figure 3 is a schematic diagram of a vehicle powered transportation climate control system including an electrically isolated box, according to an embodiment.

[0015] Figure 4 is a schematic diagram of a vehicle powered transportation climate control system including an electrically isolated box according to another embodiment.

[0016] Specific embodiments of the present invention are described herein with reference to the accompanying drawings; however, it should be understood that the disclosed embodiments are merely examples of the present invention, which may be embodied in various forms. Well-known functions or configurations are not described in detail to avoid obscuring the present invention with unnecessary detail. Therefore, the specific structural and functional details disclosed herein should not be interpreted as limiting, but only as a basis for the claims and as a representative basis for teaching those skilled in the art to adopt the present invention differently with virtually any appropriate detailed structure. In this specification and the accompanying drawings, similar reference numerals represent similar elements that can perform the same, similar, or equivalent functions. DETAILED DESCRIPTION

[0017] The present invention generally relates to a vehicle powered transportation climate control system for providing climate control within a climate controlled space towed by a vehicle or contained on a chassis. More specifically, the present invention relates to a method and system for isolating hazardous voltages from a vehicle powered transportation climate control system for providing climate control within a climate controlled space towed by a vehicle or contained on a chassis.

[0018] Features in the embodiments described herein can provide a method for electrically isolating hazardous voltages by following the concept of double insulation (e.g., by using power tools or appliances that incorporate additional safety measures). For example, in one example embodiment, an electrical isolation box is applied as a barrier to isolate hazardous voltages. When there is a potentially harmful leakage current from a hazardous voltage component / system, the leakage current can be appropriately isolated and contained inside an inaccessible location (e.g., an electrical isolation box) to prevent the leakage current from causing undesirable problems.

[0019] The terms "above", "below", "top", "bottom", "left", "right", etc. described in this application are defined according to the typical observation angle of those skilled in the art and for the convenience of description. These terms are not limited to a specific direction, but are provided for the convenience of understanding the present invention. It can be seen that these terms should be interpreted broadly and may include but are not limited to being directly adjacent to, close to, or separated from the corresponding components.

[0020] As referred to herein, "low voltage" may refer to Class A of ISO 6469-3 in an automotive environment. Specifically, a maximum operating voltage between 0 VDC and 60 VDC or between 0 VAC and 30 VAC.

[0021] As referred to herein, "high voltage" or "hazardous voltage" may refer to Class B of ISO 6469-3 in an automotive environment. Specifically, a maximum operating voltage between 60 VDC and 1500 VDC or between 30 VAC and 1000 VAC.

[0022] Figure 1A A climate controlled unibody van 11 is depicted that includes a climate controlled space 12 for transporting cargo. The van 11 includes a vehicle powered transport climate control system 5. The vehicle powered transport climate control system 5 includes a climate control unit 14 mounted to a front wall 16 of the climate controlled space 12.

[0023] The transport climate control unit 14 includes a climate control circuit (not shown) that includes, for example, a compressor, a condenser, an evaporator, and an expansion valve. The transport climate control unit 14 may also include a heater, one or more evaporator fans, one or more condenser fans, one or more solenoid valves, etc., which help provide climate control (temperature, humidity, air quality, etc.) in the climate control space 12. The transport climate control unit 14 is controlled via a controller 15 to provide climate control within the climate control space 12. It should be understood that the transport climate control unit 14 can optionally accommodate a power source (e.g., a prime mover, a battery power source, a fuel cell, etc.) that can power the vehicle powered transport climate control system 5.

[0024] The truck 11 also includes a vehicle power compartment 18 that houses a prime mover 21, such as a combustion engine (e.g., a diesel engine, etc.), which provides power to move the truck 11 and operate the vehicle-powered transport climate control system 5. The prime mover 21 can work in conjunction with an optional machine 22 (e.g., an alternator, a generator, etc.) to provide power to the vehicle-powered transport climate control system 5.

[0025] In some embodiments, truck 11 may be a hybrid vehicle powered by prime mover 21 in combination with a battery power source (not shown), or may be an electric truck in which prime mover 21 is replaced by a power source (eg, a battery power source).

[0026] In some embodiments, the truck 11 may be a battery electric vehicle (BEV), which may be powered solely by one or more electric motors and rely on rechargeable batteries as its energy storage system. Figure 1B Small truck or bus 80, Figure 1C The tractor 52 and other vehicles described herein may be BEVs.

[0027] It should be understood that the power source of the truck 11 (e.g., prime mover 21, optional machine 22, power source, etc.) may not exclusively power the vehicle powered transportation climate control system 5 when operating at full capacity. For example, the transportation climate control unit 14 may house a power source (e.g., prime mover, battery power source, fuel cell, etc.) that may also power the vehicle powered transportation climate control system 5.

[0028] Although Figure 1A A climate controlled unit truck 11 is illustrated, but it should be understood that the embodiments described herein may also be applied to any other type of transport unit, including but not limited to containers (e.g., containers on flatbeds, intermodal containers, etc.), box trucks, or other similar transport units.

[0029] Figure 1B A temperature controlled minivan 80 is described that includes a climate controlled space 82 (or interior space) for transporting cargo. The minivan 80 includes a vehicle powered transport climate control system 75. The vehicle powered transport climate control system 75 includes a transport climate control unit 85 mounted to a top 84 of the climate controlled space 82. The transport climate control unit 85 is controlled via a controller 83 to provide climate control (e.g., temperature, humidity, air quality, etc.) within the climate controlled space 82. It should be understood that the transport climate control unit 85 can optionally accommodate a power source (e.g., a prime mover, a battery power source, a fuel cell, etc.) that can power the vehicle powered transport climate control system 75.

[0030] The minivan 80 also includes a vehicle power compartment 86 that houses a prime mover 87, such as an internal combustion engine (e.g., a diesel engine, etc.), which provides power to move the minivan 80 and operate the vehicle powered transport climate control system 75. In some embodiments, the prime mover 87 can work in conjunction with an optional machine 88 (e.g., an alternator, a generator, etc.) to operate the vehicle powered transport climate control system 75. Moreover, in some embodiments, the minivan 80 can be a hybrid vehicle powered by the prime mover 87 in conjunction with a battery power source (not shown), or can be an electric van in which the prime mover 87 is replaced by a power source (e.g., a battery power source).

[0031] It should be understood that the power source of the minivan 80 (e.g., prime mover 87, optional machine 88, power source, etc.) may not exclusively power the vehicle powered transportation climate control system 75 when operating at full capacity. For example, the transportation climate control unit 85 may house a power source (e.g., prime mover, battery power source, fuel cell, etc.) that may also power the vehicle powered transportation climate control system 75.

[0032] Figure 1CA climate controlled transport unit 50 having a trailer attached to a tractor 52 according to an embodiment is illustrated. The climate controlled transport unit 50 includes a transport climate control system 54, a mobile charging system 68, and a transport unit 56. The transport climate control system 54 is configured to control the temperature of a climate controlled space 60 of the transport unit 56. In particular, the transport climate control system 54 is configured to transfer heat between the climate controlled space 60 and the external environment. In some embodiments, the transport climate control system 54 is a multi-zone system, wherein different zones or areas of the climate controlled space 60 are controlled to meet different climate control requirements based on the cargo stored in a particular zone. The transport climate control system 54 includes a transport climate control unit 58 for providing climate control within the climate controlled space 60. The climate controlled space 60 can store cargo, including, for example, one or more independent climate controlled storage units that can be charged by the mobile charging system 68.

[0033] The mobile charging system 68 includes a solar charging unit 62 and a mobile charging system storage unit 66. The solar charging unit 62 includes a portion of a solar charging module of the mobile charging system 68, which includes a plurality of solar panel arrays 64. Each solar panel array 64 includes a plurality of solar panels (not shown). In some embodiments, the solar charging unit 62 can be used by the mobile charging system 68 and provide electrical energy for use by the transportation climate control system 54.

[0034] The mobile charging system storage unit 66 can store portions of the mobile charging system 68, including, for example, the remainder of a battery pack (not shown), a solar charging module (not shown), an AC inverter charging module (not shown), a DC charging module (not shown), a DC charging controller (not shown), etc.

[0035] The tractor 52 also includes a vehicle power compartment 522 that houses a prime mover 524, such as an internal combustion engine (e.g., a diesel engine, etc.), which provides power to move the tractor 52 and operate the vehicle-powered transport climate control system 54. In some embodiments, the prime mover 524 can work in conjunction with an optional machine 526 (e.g., an alternator, a generator, etc.) to operate the vehicle-powered transport climate control system 54. Moreover, in some embodiments, the tractor 52 can be a hybrid vehicle powered by the prime mover 524 in conjunction with a battery power source (not shown), or can be an electric tractor in which the prime mover 524 is replaced by a power source (e.g., a battery power source).

[0036] It should be understood that the power source of the tractor 52 (e.g., a prime mover, an optional machine, a power source, etc.) may not exclusively power the vehicle-powered transport climate control system 54 when operating at full capacity. For example, the transport climate control unit 58 may house a power source (e.g., a prime mover, a battery power source, a fuel cell, etc.) that may also power the vehicle-powered transport climate control system 54. Also, for example, the mobile charging system 68 may also provide power to the vehicle-powered transport climate control system 54.

[0037] Figure 1D is a perspective view of a passenger vehicle 150 including a vehicle powered transportation climate control system 155 according to one embodiment. Figure 1D In the illustrated embodiment, the passenger vehicle 150 is a public transportation bus that can transport one or more passengers (not shown) to one or more destinations. In other embodiments, the passenger vehicle 150 can be a school bus, a rail vehicle, a subway vehicle, or other commercial vehicle that transports passengers. Hereinafter, the term "vehicle" will be used to represent all such passenger vehicles and should not be interpreted as limiting the scope of the present application to only public transportation buses. The vehicle transportation climate control system 155 can provide climate control within a climate controlled space, which in this embodiment is a passenger cabin 154.

[0038] The passenger vehicle 150 includes a frame 152, a passenger compartment 154 supported by the frame 152, wheels 153, and a cabin 156. The frame 152 includes doors 158 positioned on one side of the passenger vehicle 150. A first door 158a is positioned adjacent to the front end of the passenger vehicle 150, and a second door 158b is positioned on the frame 152 toward the rear end of the passenger vehicle 150. Each door 158 is movable between an open position and a closed position to selectively allow access to the passenger compartment 154.

[0039] The vehicle powered transportation climate control system 155 includes a CCU 160 mounted to the roof 151 of the passenger vehicle 150. In one embodiment, the CCU 160 can be an HVAC unit. The climate control system 155 also includes a programmable climate controller 165 and one or more sensors (not shown) configured to measure one or more parameters of the transportation climate control system 155 (e.g., ambient temperature outside the passenger vehicle 150, space temperature within the passenger cabin 154, ambient humidity outside the passenger vehicle 150, space humidity within the passenger cabin 154, etc.) and transmit parameter data to the climate controller 165.

[0040] The transportation climate control system 155 may include transportation climate control circuitry (not shown) that connects, among other components, such as a compressor, a condenser, an evaporator, and an expander (eg, an expansion valve) to provide climate control within the passenger cabin 154 .

[0041] Climate controller 165 may include a single integrated control unit, or may include a distributed network of climate controller elements (not shown). The number of distributed control elements in a given network may depend on the specific application of the principles described herein. Climate controller 165 is configured to control the operation of climate control system 155 including a transport climate control circuit.

[0042] The climate control system 155 is comprised of a power system (e.g., see Figure 2 )powered by.

[0043] The passenger vehicle 150 also includes a vehicle power compartment 156 that houses a prime mover (not shown), such as an internal combustion engine (e.g., a diesel engine, etc.), which provides power to move the passenger vehicle 150 and operate the vehicle powered transport climate control system 155. In some embodiments, the prime mover can work in conjunction with an optional machine (e.g., an alternator, a generator, etc.) (not shown) to operate the vehicle powered transport climate control system 155. Moreover, in some embodiments, the passenger vehicle 150 can be a hybrid vehicle powered by a prime mover in conjunction with a battery power source (not shown), or can be an electric vehicle in which the prime mover is replaced by a power source (e.g., a battery power source). The vehicle power compartment 156 is positioned adjacent to the rear end of the passenger vehicle 150. In some embodiments, the vehicle power compartment 156 can be located at other locations on the passenger vehicle 150 (e.g., adjacent to the front end, etc.).

[0044] It should be understood that the power source (e.g., prime mover, optional machine, power source, etc.) of the passenger vehicle 150 may not exclusively power the vehicle powered transportation climate control system 155 when operating at full capacity. For example, the CCU 160 may house a power source (e.g., prime mover, battery power source, fuel cell, etc.) that may also power the vehicle powered transportation climate control system 155.

[0045] Figure 2 An example of a vehicle powered transportation climate control system (eg Figure 1A System 5, Figure 1B System 75, Figure 1C System 54 and Figure 1D Schematic block diagram of an embodiment of an electric power system 200 powered by a system 155 in FIG. 1 . The electric power system 200 may be configured to operate with a prime mover powered vehicle. The electric power system 200 may also be configured to operate with an electric vehicle powered by an energy storage device (e.g., one or more batteries) and / or a hybrid vehicle powered by a combination of a prime mover and an energy storage device.

[0046] like Figure 2As shown, power system 200 includes a vehicle power network 204 including a rechargeable energy storage system (RESS) 206 , a utility power network 208 , and a transportation climate control load network 212 connected to a power distribution module 240 .

[0047] The power system 200 can distribute utility power from the utility power network 208 and vehicle network power from the vehicle power network 204 including the RESS 206 via the power distribution module 240 to power the transportation climate control load network 212. One or more energy sources can include the vehicle battery 210 and the vehicle machine 205 via the vehicle power network 204, and one or more rechargeable batteries 230 via the RESS 206. The loads of the transportation climate control load network 212 can include, for example, a compressor 255, one or more evaporator blowers 265, one or more condenser fans 270, a heater 275, and a controller 260 of a vehicle-powered transportation climate control system. The loads can also include, for example, one or more sensors, one or more valves, one or more solenoids, etc. of the transportation climate control system. It should be understood that in some embodiments, the compressor 255 may require most of the power of the vehicle-powered transportation climate control system.

[0048] The vehicle power network 204 is configured to provide vehicle network power, which will be distributed by the distribution module 240 to power the transportation climate control load network 212. The vehicle power network 204 includes a vehicle battery 210 and a vehicle machine 205. The vehicle battery 210 can be used, for example, to start the vehicle prime mover, run lights, power vehicle accessory components, etc. In some embodiments, the vehicle battery 210 can also be used to power components of the transportation climate control load network 212. It should be understood that the vehicle network power provided by the vehicle power network 204 may be inconsistent and based on the operation of the vehicle and the vehicle load requirements. Therefore, the vehicle network power may fluctuate continuously. Moreover, it should be understood that the maximum vehicle network power available for the power system 200 may be insufficient to operate a vehicle-powered transportation climate control system operating at full capacity.

[0049] In some embodiments, vehicle battery 210 may include a traction battery pack in an electric vehicle, which typically stores electrical energy in the form of high voltage DC power. The voltage level of the traction battery pack may be in the range of, for example, several hundred volts or more.

[0050] The vehicle machine 205 may be a generator capable of providing DC power to the vehicle. In some embodiments, the vehicle machine 205 may include an alternator and a rectifier or AC-DC converter (not shown) that rectifies or converts the AC power into DC power.

[0051] It should be understood that in an electric vehicle, there may be no machine. An electric vehicle may include an electric generator and a high voltage (e.g., in the range between 60VDC and 1500VDC; e.g., 400VDC, 800VDC, etc.) DC battery to run the vehicle. An electric vehicle may also provide a relatively high voltage (e.g., 400V, 800V, etc.) DC power source (e.g., battery pack, rechargeable energy storage system (RESS), etc.). An electric vehicle may include one or more DC-DC converters (e.g., two DC-DC converters) that convert a relatively high voltage (e.g., 400VDC, 800VDC, etc.) into a low voltage (e.g., in the range of 0VDC to 60VDC; e.g., 12VDC). That is, in order to be able to provide vehicle network power to the distribution module 240, the vehicle machine 205 may be replaced by a DC-DC converter having parameters similar to those of the vehicle machine 205. Vehicle network power may be used to power vehicle accessory components (e.g., electronic communications devices, cabin lights, main and / or auxiliary HVAC systems, one or more main and / or auxiliary HVAC fans, one or more sunshades for windows / windshields of vehicle 10, cabin accessories, etc.).

[0052] In some embodiments, a high voltage or a converted low voltage (e.g., 12 VDC) from the vehicle power network 204 can be provided to the distribution module 240 for powering the transport climate control load network 212. In some embodiments, the vehicle power network 204 can be applied to a multi-voltage system using two or more different voltages (e.g., high voltage and 48 VDC). In some embodiments, an electric vehicle can, for example, provide 7 kWh of energy to the distribution module 240 from 45 kWh of storage in the vehicle power network 204 to operate the transport climate control load network 212. The embodiments disclosed herein can use output power (e.g., power output or ePTO) from a low voltage (e.g., 12 VDC) system for loads, such as vehicle accessory components and / or the distribution module 240. High voltage power can provide power for driving the vehicle (e.g., transmission power output), and the power system 200 herein can obtain power from a high voltage system.

[0053] It should be appreciated that in a hybrid vehicle, there may be machines (eg, vehicle machines 205 ) and / or low voltage DC power sources that are capable of providing a low voltage (eg, 12 VDC) to the power distribution module 240 .

[0054] It should be understood that any type of power source from the vehicle that can provide power to the power system 200 can be part of the vehicle power network 204. This can include, for example, the vehicle machine 205, the vehicle battery 210, the RESS, a generator, an axle-mounted generator, a power take-off (PTO) device or an ePTO device with an auxiliary converter, etc.

[0055] In some embodiments, a voltage sensor (not shown) may be provided in the vehicle power network 204 to monitor the vehicle voltage provided to the power distribution module 240. Also, in some embodiments, a current sensor (not shown) may be provided to monitor the current to the power distribution module 240.

[0056] RESS 206 includes a rechargeable battery power source 230 and a battery management system 235. In some embodiments, RESS 206 may be part of a vehicle powered transportation climate control system and potentially housed within a transportation climate control unit. In other embodiments, RESS 206 may be external to the vehicle powered transportation climate control system and part of the vehicle power network 204. In still other embodiments, RESS 206 may be external to the vehicle powered transportation climate control system and external to the vehicle power network 204. For example, RESS 206 may be part of an auxiliary power unit (APU) mounted to the vehicle.

[0057] In some embodiments, the rechargeable battery power supply 230 may include one or more rechargeable batteries. For example, in one embodiment, the battery power supply 230 may include two rechargeable batteries (not shown). Each rechargeable battery may also be connected to the power distribution module 240. It should be understood that in some embodiments, the rechargeable battery power supply 230 can provide enough energy to power the transport climate control load network 212 by itself. In some embodiments, the rechargeable battery power supply 230 can provide 400VDC or 800VDC. In other embodiments, the rechargeable battery power supply 230 can provide 48VDC, which can be converted to up to, for example, 400VDC using a converter, which can be contained in a housing such as an electrically isolated box.

[0058] The battery management system 235 is configured to monitor the charge level of one or more rechargeable batteries of the battery power source 230 and to charge the one or more rechargeable batteries of the battery power source 230. The battery management system 235 may communicate with, for example, the controller 260 and / or a controller (not shown) of the power distribution module 240 to provide the charge level of the one or more rechargeable batteries of the battery power source 230. Moreover, the battery management system 235 may receive instructions from, for example, the controller 260 and / or a controller of the power distribution module 240 indicating the amount of power from the rechargeable battery power source 230 that should be supplied to the power distribution module 240.

[0059] The power distribution module 240 is configured to distribute DC power from the utility power network 208 and the vehicle power network 204 including the RESS 206 to load power compatible with one or more loads of the transportation climate control load network 212. The power distribution module 240 may include one or more switches configured to selectively connect at least one power input (e.g., DC power from the utility power network 208 and / or the vehicle power network 204) to the power bus 202. The controller 260 may control the on / off (closing / opening) of the switches to distribute the power.

[0060] In some embodiments, the power distribution module 240 can be configured to reduce or increase the power from the vehicle power network 204, and is configured to reduce or increase the power from the RESS 206 to obtain the desired load power. In some embodiments, the power distribution module 240 may include one or more DC / DC converters. For example, the power distribution module 240 may include: a DC / DC converter that converts low-power vehicle network power into a voltage compatible with one or more loads of the transport climate control load network 212; and a second DC / DC converter that converts auxiliary network power into a voltage compatible with one or more loads of the transport climate control load network 212. The converted power from the vehicle power network 204 and the converted power from the RESS 206 can be combined to obtain a load power compatible with one or more loads of the transport climate control load network 212. Then, the load power output by the power distribution module 240 is provided to the transport climate control load network 212 on the load DC bus 202. In some embodiments, the load power can be a low voltage DC power (e.g., between 0VDC and 60VDC). In other embodiments, the load power may be high voltage DC power (eg, between 60 VDC and 1500 VDC).

[0061] In some embodiments, the power distribution module 240 may include a controller (not shown) configured to monitor and control the power distribution module 240. In some embodiments, the controller of the power distribution module 240 may communicate with the controller 260.

[0062] The power system 200, and in particular the power distribution modules 240, are controlled by a controller 260 of the transport climate control load network 212. The controller 260 may be, for example, Figure 1A The controller 15 shown or Figure 1BController 83 shown. In some embodiments, power distribution module 240 can monitor the amount of current and / or voltage provided by vehicle power network 204. Also, in some embodiments, power distribution module 240 can monitor the amount of current and / or voltage drawn by components of transportation climate control load network 212. Power distribution module 240 can be configured to transmit the amount of current and / or voltage provided by vehicle power network 204 and the amount of current and / or voltage drawn by components of transportation climate control load network 212.

[0063] The components of the transport climate control load network 212 may be, for example, part of a transport climate control unit mounted to the body of a vehicle (e.g., a truck, a minivan, etc.). In some embodiments, the transport climate control unit may be located above the truck cab (e.g., Figure 1A In other embodiments, the transport climate control unit can be located on top of the transport unit (e.g., the top of the box where the external condenser is located) (see Figure 1B In yet other embodiments, the transport climate control unit may be attached to the side walls of a transport unit towed by a tractor (see Figure 1C ). In some embodiments, components of transport climate control load network 212 may be DC powered components. In some embodiments, components of transport climate control load network 212 may be AC ​​powered components. In some embodiments, transport climate control load network 212 may include DC powered components and AC powered components.

[0064] like Figure 2 As shown, the transport climate control load network 212 includes one or more climate control circuit components, including a compressor 255, one or more evaporator blowers 265, one or more condenser fans 270, a heater 275, and a controller 260. The transport climate control load network 212 also includes a driver module 250, which is configured to receive power from the power distribution module 240 to power one or more climate control circuit components including the compressor 255 and / or the heater 275.

[0065] In one embodiment, the driver module 250 is configured to receive or provide high voltage power of Class B referenced to ISO 6469-3, with a maximum operating voltage between 60V and 1500VDC or between 30V and 1000VAC. For example, the driver module 250 can receive and convert high voltage DC power (e.g., several hundred volts DC or higher) from the load DC bus 202 to provide AC power (e.g., 230VAC three-phase, 460VAC three-phase, etc.) to drive the compressor 255. It should be understood that the driver module 250 can be configured to drive the compressor 255 to meet the needs of the transportation climate control system.

[0066] In some embodiments, the drive module 250 may be configured to step up load power and convert the stepped-up load power to AC load power. For example, in one embodiment, the drive module 250 may include one or more DC-DC converters configured to step up power from the DC load bus 202 and one or more DC-AC inverters that convert the power to AC power to drive the compressor 255. In some embodiments, the drive module 250 may convert the load power to high voltage AC power. Figure 2 As shown, the driver module 250 is configured to power the compressor 255 and optionally the heater 275. It should be understood that in other embodiments, the driver module 250 can power other components of the transport climate control load network 212, for example, one or more evaporator blowers 265, one or more condenser fans 270, etc. In some embodiments, the driver module 250 can include a compressor driver module (CDM).

[0067] The load DC bus 202 is connected to and powers each of the driver module 250, one or more evaporator blowers 265, one or more condenser fans 270, the heater 275, and the controller 260. It should be understood that the driver module 250 with the compressor 255 may require the maximum power for the various loads of the transport climate control load network 212. Figure 2 As shown, in some embodiments, the driver module 250 can also provide power to the heater 275 .

[0068] The utility power network 208 is configured to charge the battery power 230 of the RESS 206 when the vehicle is parked and has access to the utility power 220. In some embodiments, the utility power network 208 can also provide power to operate the transport climate control load network 212 when the vehicle is parked and has access to the utility power. The utility power network 208 includes an AC-DC converter 225. A utility power source (e.g., shore power, etc.) 220 can be connected to the AC-DC converter 225 to provide an AC power input to the AC-DC converter 225. The AC-DC converter 225 converts the AC power from the utility power 220 and provides the converted DC power to the power distribution module 240.

[0069] Although Figure 2A single AC-DC converter 225 is shown, but it should be understood that in other embodiments, the power system 200 may include two or more AC-DC converters. In embodiments where there are two or more AC-DC converters, each of the AC-DC converters may be connected to the utility power source 220 to provide additional power to the power system 200. In some embodiments, each of the AC-DC converters may provide a different amount of power. In some embodiments, each of the AC-DC converters may provide the same amount of power.

[0070] In some embodiments, utility power 220 may be directly connected to compressor 255 and provide power to drive compressor 255, thereby bypassing drive module 250. In some embodiments, drive module 250 may include an AC-DC inverter and convert power received from utility power 220 into DC power that may be provided by drive module 250 to load DC bus 202.

[0071] In some embodiments, the compressor 255 may be a variable speed compressor. In some embodiments, the compressor 255 may require, for example, 1KW of power to operate. In some embodiments, one or more evaporator blowers 265 may require, for example, 100W of power to operate. In some embodiments, one or more condenser fans 270 may require, for example, 130W of power to operate. In some embodiments, the heater 275 may require, for example, 1200W of power to operate. Moreover, in some embodiments, the heater 275 may be configured to receive power from the drive module 250. Although Figure 2 The compressor 255 is shown as being powered by AC power, but it should be understood that in other embodiments, the compressor 255 may also be powered by DC power.

[0072] When the compressor 255 and / or the heater 275 are powered directly by the utility power 220, the compressor 255 and / or the heater 275 can be turned on and off (e.g., operated in a cyclic start-stop mode) to control the amount of cooling provided by the compressor 255 and / or the amount of heating provided by the heater 275.

[0073] Controller 260 is configured to monitor and control the operation of the vehicle powered transportation climate control system. Specifically, controller 260 can control the operation of compressor 255, heater 275, one or more condenser fans 270, one or more evaporator blowers 265, and any other components of the vehicle powered transportation climate control system. In some embodiments, controller 260 can monitor the amount of power drawn by components of transportation climate control load network 212. Controller 260 can also be configured to control power system 200.

[0074] Figure 3 is a schematic diagram of a portion of a vehicle powered transportation climate control system 300 including an electrically isolated box 310 according to an embodiment. The transportation climate control system 300 is configured to provide climate control within a climate controlled space towed by a vehicle or contained on a chassis. The transportation climate control system 300 may include, for example, Figure 1A Transport climate control systems in 5. Figure 1B Transport climate control systems in 75 and / or Figure 1C One or more components of the transport climate control system 54. Figure 3 In the depicted embodiment, transport climate control system 300 includes one or more climate control circuit components, including compressor 320 .

[0075] The drive module 330 is configured to receive power from the vehicle power network (eg Figure 2 The vehicle power network 204 in the vehicle receives power to power the compressor 320. The drive module 330 can be connected to the power distribution module via the power bus 202, such as Figure 2 The power distribution module 204 may include an external portion located outside the electrically isolated box 310 and an internal portion located inside the electrically isolated box 310. The external portion and the internal portion may have different references (e.g., a low voltage reference and a high voltage reference) and may be electrically connected to distribute power from the vehicle power network to the drive module 330. For example, the DC-DC converter may span the boundary of a box wall (e.g., wall 312). Figure 3 In the depicted embodiment, a DC power distribution unit (PDU) 304 is located outside of the electrical isolation box 310 to direct DC power to the drive modules 330 via the power bus 202 .

[0076] The drive module 330 may include a DC-AC inverter that powers at least one of the compressor 320 and the heater 325. In one embodiment, the DC-AC inverter may be powered from a vehicle battery (e.g., Figure 2 The PDU 304 receives high voltage DC power from a vehicle battery 210 and converts the high voltage DC power into a suitable form of low voltage AC power before supplying the AC power to the compressor 320 and / or the heater 325. A suitable inverter may include power electronics components, such as transistors, switches, and control circuits, which convert the high voltage DC power into AC power having a desired voltage, frequency, and / or waveform that matches, for example, the compressor 320. It should be understood that the heater 325 received in the box 310 may receive AC power from a DC-AC inverter, or DC power from the DC bus 202, wherein the PDU 304 may include a switch to direct the DC power to the heater 325.

[0077] The drive module may also include one or more DC-DC converters electrically connected to the DC-AC inverter to step down or step up power from the vehicle power network 204 and configured to step down or step up power from the RESS 206 to obtain desired load power.

[0078] Compressor 320 includes a compressor element 322 driven by an electric motor 324 powered by a drive module 330. Compressor element 322 and electric motor 324 are received in a compressor housing or casing 323. The climate control circuit components of transport climate control system 300 also include a heater 325 and other system components 326, such as coils, valves, etc.

[0079] An electrically isolated box 310 is provided to receive a driver module 330, a compressor 320, a heater 325, and other system components. In one embodiment, the electrically isolated box 310 may receive a working fluid (e.g., a refrigerant, glycol, etc.) that may transfer heat from the heater 325 to an external heat exchanger (e.g., a coil). The electrically isolated box 310 is also configured to electrically isolate the driver module 330 and the received climate control circuit components 320, 325 at a climate control system electrical potential reference. The climate control system electrical potential reference is different than the electrical potential reference of the vehicle chassis to which the electrically isolated box 310 is connected. For example, at Figure 3 In the embodiment described in , the electrically isolated box 310 is connected to chassis ground 301, which refers to the electrical potential reference of the vehicle chassis. As referred to herein, "chassis ground" (ground connection or ground reference) can refer to an electrical connection that provides a common reference point for various electrical components and systems, such as when the electrical components and systems are connected to a utility power supply that is referenced to ground. The electrically isolated box 310 provides a physical barrier (e.g., a Faraday cage) that prevents any current from flowing between components inside the box 310 to the vehicle chassis.

[0080] The electrical isolation box 310 includes a wall 312 defining an at least partially enclosed space 303. In one embodiment, the electrical isolation box 310 may include one or more metal materials at the wall 312 to form a Faraday cage with electromagnetic compatibility (EMC). The electrical isolation box 310 may also include one or more plastic materials for electrical isolation / insulation. The electrical isolation box 310 may also include a soundproofing material at the wall 312 to isolate noise that may be generated inside the box 310. It should be understood that the electrical isolation box 310 may include any suitable material and have any suitable configuration to achieve electrical isolation, noise isolation and / or electromagnetic compatibility (EMC) effects. Suitable plastic materials may include, for example, fiberglass reinforced plastic (FRP), polycarbonate, etc. An example plastic material is FR-4, which is a composite material composed of woven fiberglass cloth and epoxy resin adhesive. Another example plastic material is G-10 or Garolite, which is a high-pressure fiberglass laminate. Suitable soundproofing materials may be arranged on the inner side of the wall 312 to provide sound insulation and insulation effects.

[0081] The electrically isolated box 310 can have its wall 312 sealed to maintain its integrity as a part of the system 300. Any suitable sealing material can be used to prevent moisture, dust or other contaminants from entering the electrically isolated box 310. In an exemplary embodiment, the electrically isolated box 310 may include a drain hole, such as at the bottom of the box, to discharge any accumulated moisture. The drain hole may include, for example, a waterproof breathable fabric, which can provide protection for the components in the box and allow moisture to escape. In an exemplary embodiment, the electrically isolated box 310 may include a cover for manufacturability. When there is voltage at the components inside the box 310, special fasteners or features may be used to prevent unauthorized entities from entering the box 310. The box cover may be fixed (e.g., glued) to the box 310, which may need to be remanufactured by an authorized entity.

[0082] The electrical isolation box 310 may include one or more entry / exit points or interfaces at the wall 312 to allow cables / tubes / pipelines to pass through while maintaining the integrity of the enclosure. One or more non-conductive materials may be arranged at the interfaces to electrically isolate the cables / tubes / pipelines from the electrical isolation box 310.

[0083] Electrically isolating box 310 may be mounted to the vehicle chassis. Vibration damping materials and / or electrically isolating materials may be used to reduce the transmission of mechanical vibrations and provide mechanical protection / electrical isolation for components contained in electrically isolating box 310.

[0084] One or more sensors (e.g., voltage sensors, current sensors, etc.) may be provided to monitor the isolation of components within the electrical isolation box 310, such as from the box wall 312. A controller (e.g., Figure 2The controller 260 of the present invention can receive sensed data from sensors to monitor isolation. The isolation monitoring data from the sensors can be measured relative to the climate control system potential reference and / or the vehicle chassis potential reference, which can improve the isolation monitoring capability. Using the received sensed data, the controller can monitor the chassis reference, the electrical isolation box 310, or a new reference in the box 310 (such as the climate control system potential reference) from the power grid of interest. The controller can analyze the sensed data of each measurement to infer where the fault is located and predict insulation degradation before insulation degradation even becomes a problem. In this way, in addition to fault reporting, the controller can also provide early indication of maintenance.

[0085] The drive module 330, the compressor 320 and the heater 325 are arranged in the electrical isolation box 310 and are electrically isolated from the electrical isolation box 310. The mounting plate 319 is provided with a non-conductive support member 315 inside the electrical isolation box 310 to support the drive module 330 and the compressor housing or shell 323 and to electrically isolate them from the electrical isolation box 310. The mounting plate 319 can be used as a special reference plane to ensure that the leakage current has a special position to pass / conduct between the components received inside the electrical isolation box 310. The support member 315 can isolate / insulate the mounting plate 319 from the electrical isolation box 310, which can ensure appropriate creepage and clearance for achieving electrical isolation between high-voltage components or circuits. The non-conductive support member 315 can include, for example, insulating fiberglass material, rubber, etc. In one embodiment, an accelerometer or other suitable sensor can be connected to the mounting plate 319 to detect the vibration of the compressor 320.

[0086] The compressor 320 can be connected to other circuit components 326 via one or more working fluid pipes / pipelines 321. The pipes / pipelines 321 can be made of non-conductive materials. By arranging non-conductive materials at the interface 314 where the working fluid pipes / pipelines 321 from the compressor 322 pass through the wall 312 of the electrical isolation box 310, the pipes / pipelines 321 can be further isolated from the box wall 412. The non-conductive material can include, for example, insulating fiberglass materials, rubber, etc. It should be understood that any suitable isolation / insulation mechanism can be used to electrically isolate the components in the box 310 from the box wall 312. Suitable isolation mechanisms can include, for example, isolation / insulation mounting parts, isolation / insulation pads, isolation / insulation washers, etc.

[0087] The drive module 330 receives power from the power distribution module 240 via the DC bus 202. A non-conductive material is arranged at the interface 316 where the DC bus 202 passes through the wall 312 of the electrical isolation box 310 to provide electrical isolation. The non-conductive material may include, for example, insulating fiberglass material, rubber, etc. It should be understood that the interfaces 314, 316 may include any suitable high voltage connection components, including, for example, a header mounted on the wall 312 and a plug connected to the header, which may be sealed and / or shielded.

[0088] A cooling fan 347 is disposed in the electrical isolation box 310 to circulate air (e.g., a cold airflow entering the space 303 and a hot airflow leaving the space) through the vents at the wall 312. The airflow generated by the cooling fan 347 can help dissipate heat from the components in the electrical isolation box 310, which can prevent potential problems of leakage current from the components. The box 310 can also include one or more additional labyrinth ventilation mechanisms for airflow support. It should be understood that a liquid cooling mechanism can be provided to circulate a semi-conductive cooling liquid to cool at least some of the components in the electrical isolation box 310. The liquid cooling mechanism can include a liquid pipeline for circulating the cooling liquid. Non-conductive material can be arranged at the interface where the liquid pipeline passes through the wall 312 of the electrical isolation box 310 to provide electrical isolation.

[0089] It should be understood that the box 310 can act as a barrier to prevent unwanted ingress. For example, the box 310 can be glued shut and / or include special fasteners or screws to provide an additional level of security, which may require remanufacture by an authorized entity.

[0090] Figure 4 FIG. 4 is a schematic diagram of a portion of a vehicle powered transportation climate control system 400 including an electrical isolation box 410 according to another embodiment. It should be understood that the electrical isolation box 410 may have Figure 3 The transport climate control system 400 is configured to provide climate control within a climate controlled space towed by a vehicle or contained on a chassis. The transport climate control system 400 may include components from, for example, Figure 1A Transport climate control systems in 5. Figure 1B Transport climate control systems in 75 and / or Figure 1C One or more components of the transport climate control system 54. Figure 4 In the depicted embodiment, transport climate control system 400 includes one or more climate control circuit components, including compressor 320 .

[0091] Compressor 320 includes a compressor element 322 driven by a motor 324 powered by a drive module 330. Compressor element 322 and motor 324 are received in a compressor housing 323. The climate control circuit components of transport climate control system 300 also include a heater 325 and other circuit or system components 326.

[0092] The drive module 430 is configured to receive power from the vehicle power network (eg Figure 2 The vehicle power network 204 in FIG. 1 receives power to power the compressor 320 and / or other climate control circuits or system components (eg, the heater 325 ).

[0093] An electrically isolated box 410 is provided to receive the driver module 430, the compressor 320, and the heater 325. The electrically isolated box 410 is also configured to electrically isolate the driver module 430 and the received climate control circuit components 320, 325 at a climate control system electrical potential reference. The climate control system electrical potential reference is different from the electrical potential reference of the vehicle chassis to which the electrically isolated box 410 is connected. For example, Figure 4 In the embodiment depicted in FIG. 4 , the electrically isolated box 410 is connected to chassis ground 401 , which refers to the electrical potential reference of the vehicle chassis.

[0094] Electrically isolated box 410 includes walls 412 that define at least partially enclosed space 403. In one embodiment, electrically isolated box 410 may include one or more plastic or metal materials at walls 412. Electrically isolated box 410 may also include soundproofing material at walls 412.

[0095] The driving module 430, the compressor 320, and the heater 325 are arranged in the electrical isolation box 410 and are electrically isolated from the electrical isolation box 410. The mounting plate 419 is provided with a non-conductive support member 415 inside the electrical isolation box 410 to support the driving module 430 and the compressor 323 and to electrically isolate them from the electrical isolation box 410. The non-conductive support member 415 may include, for example, insulating fiberglass material, rubber, etc. In one embodiment, an accelerometer may be connected to the mounting plate 419 to detect vibration of the compressor 320.

[0096] The compressor 320 may be connected to other circuit components 326 arranged outside the electrically isolated box 410 via one or more working fluid pipes / pipelines 321. The pipes / pipelines 321 may be made of non-conductive materials. The pipes / pipelines 321 may be further isolated from the box wall 412 by arranging non-conductive materials at the interface 414 where the working fluid pipes / pipelines 321 from the compressor 322 pass through the wall 412 of the electrically isolated box 410. The non-conductive materials may include, for example, insulating fiberglass materials, rubber, etc.

[0097] The drive module 430 receives power from the distribution module 240 via the DC bus 202. A non-conductive material is arranged at the interface 414 where the DC bus 202 passes through the wall 412 of the electrical isolation box 410. The non-conductive material may include, for example, rubber. It should be understood that the interfaces 414, 416 may include any suitable high voltage connection components, including, for example, a header mounted on the wall 312 and a plug connected to the header, which may be sealed and / or shielded.

[0098] exist Figure 4 In the depicted embodiment, the driver module 430 includes an isolation transformer that provides power to at least one of the compressor 320 and the heater 325. The isolation transformer is configured to change the voltage level of the input AC power to match the specific voltage requirements of the compressor 320.

[0099] A switch 432 may be provided downstream of the isolation transformer 430 to distribute power from the isolation transformer 430 to one of the compressor 320 and the heater 325, for example, when the system switches between different operating modes (eg, heating and cooling modes).

[0100] A DC-AC inverter 440 may be provided to connect the isolation transformer 430 to the vehicle power network, e.g. Figure 2 The vehicle power network 204 is connected to the DC-AC inverter 440. The DC-AC inverter 440 is located outside the electrical isolation box 410 to provide converted AC power via the AC power line 436. Non-conductive material is arranged at the interface 416 where the AC power line 436 passes through the wall 412 of the electrical isolation box 410 to provide electrical isolation. The non-conductive material may include, for example, rubber. It should be understood that the AC power output from the DC-AC inverter 440 may not match the voltage requirements of the compressor 320. The isolation transformer 430 provides voltage conversion to allow computability between the power source (e.g., inverter 440) and the load (e.g., compressor 320).

[0101] The DC-AC inverter 440 may be connected to the power distribution module via the power bus 202, such as Figure 2 The power distribution module 204 is located outside the electrical isolation box 410 to distribute power from the vehicle power network to the drive module 430. A DC-DC converter (not shown) can be electrically connected to the DC-AC inverter 440 to reduce or increase power from the vehicle power network 204, and can be configured to reduce or increase power from the RESS 206 to obtain the desired load power.

[0102] Various aspects:

[0103] It should be understood that any of aspects 1 to 18 and 19 to 20 may be combined together.

[0104] Aspect 1. A transport climate control system configured to provide climate control within a climate controlled space towed by a vehicle, the transport climate control system comprising:

[0105] one or more climate control circuit components including a compressor;

[0106] a drive module configured to receive power from a vehicle power network to power the compressor, the vehicle power network including a rechargeable energy storage system (RESS); and

[0107] An electrical isolation box configured to house the driver module and one or more climate control circuit components and to electrically isolate the driver module and the one or more climate control circuit components at a climate control system potential reference that is different from a potential reference of a vehicle chassis to which the electrical isolation box is connected.

[0108] Aspect 2. The transport climate control system of aspect 1, wherein the electrically isolated box comprises one or more walls defining an at least partially enclosed space, the electrically isolated box comprising one or more plastic or metal materials at the one or more walls.

[0109] Aspect 3. A transport climate control system according to aspect 2, wherein the electrically isolated enclosure further comprises sound insulating material at one or more walls.

[0110] Aspect 4. The transportation climate control system of any of aspects 1 to 3, wherein the drive module and one or more climate control circuit components are electrically isolated from the electrical isolation box.

[0111] Aspect 5. The transport climate control system of any one of aspects 1 to 4, wherein the electrically isolated box further comprises a non-conductive material disposed at an interface where a working fluid pipe from the compressor passes through a wall of the electrically isolated box.

[0112] Aspect 6. The transportation climate control system of any of aspects 1 to 5, wherein the electrically isolated box further comprises a non-conductive material disposed at an interface where power lines from the drive module pass through a wall of the electrically isolated box.

[0113] Aspect 7. The transportation climate control system according to any one of aspects 1 to 6, further comprising a mounting plate having a non-conductive material inside the electrically isolated box to support the drive module and one or more climate control circuit components and electrically isolate them from the electrically isolated box.

[0114] Aspect 8. The transportation climate control system of any of Aspects 5 to 7, wherein the non-conductive material comprises rubber.

[0115] Aspect 9. The transport climate control system of any of aspects 1 to 8, further comprising an accelerometer attached to the mounting plate to detect vibrations of the compressor.

[0116] Aspect 10. A transportation climate control system according to any one of Aspects 1 to 9, wherein the drive module is configured to provide high voltage power of Class B referenced to ISO 6469-3, the high voltage power having a maximum operating voltage between 60 VDC and 1500 VDC or between 30 VAC and 1000 VAC.

[0117] Aspect 11. The transport climate control system of any of aspects 1 to 10, wherein the climate control circuit component further comprises a heater.

[0118] Aspect 12. The transportation climate control system of aspect 11, wherein the drive module includes a DC-AC inverter to power at least one of the compressor and the heater.

[0119] Aspect 13. The transportation climate control system of aspect 12, wherein the drive module further comprises one or more DC-DC converters electrically connected to the DC-AC inverter.

[0120] Aspect 14. The transportation climate control system according to aspect 12 or 13, further comprising a power distribution module connected to the DC-AC inverter, the power distribution module being located outside the electrical isolation box to distribute power from the vehicle power network.

[0121] Aspect 15. The transportation climate control system of aspect 11, wherein the drive module includes an isolation transformer to power at least one of the compressor and the heater.

[0122] Aspect 16. The transport climate control system of aspect 15, further comprising a switch downstream of the isolation transformer to distribute power from the isolation transformer to one of the compressor and the heater.

[0123] Aspect 17. The transportation climate control system of aspect 15, further comprising a DC-AC inverter connecting the isolation transformer to the vehicle power network, the DC-AC inverter being located outside the electrical isolation box.

[0124] Aspect 18. The transport climate control system according to any one of aspects 1 to 17, further comprising a fan inside the electrically isolated box.

[0125] Aspect 19. A method of electrically isolating hazardous voltages from a vehicle powered transportation climate control system for providing climate control within a climate controlled space towed by the vehicle, the method comprising:

[0126] providing power to one or more climate control circuit components of a vehicle powered transportation climate control system via a drive module, the climate control circuit components including a compressor, the drive module being configured to receive power from a vehicle power network including a rechargeable energy storage system (RESS); and

[0127] The driver module and one or more climate control circuit components are electrically isolated via an electrical isolation box at a climate control system electrical potential reference that is different than a potential reference of a vehicle chassis to which the electrical isolation box is connected.

[0128] Aspect 20. The method of aspect 19, wherein electrically isolating further comprises positioning the driver module and the one or more climate control circuit components inside an electrically isolated box, and electrically isolating the driver module and the one or more climate control circuit components from the electrically isolated box.

[0129] Aspect 21. An electrical isolation box, comprising:

[0130] one or more walls defining the at least partially enclosed space, the electrically isolating box comprising one or more plastic or metal materials at the one or more walls; and

[0131] A mounting mechanism within an at least partially enclosed space, the mounting mechanism configured to support one or more climate control circuit components and electrically isolate the one or more climate control circuit components at a climate control system electrical potential reference that is different from a potential reference of a vehicle chassis to which the electrical isolation box is connected.

[0132] Aspect 22. The electrically isolated box according to aspect 21, further comprising one or more entry / exit interfaces at the wall to allow working fluid tubes from the climate control circuit components to pass through, the entry / exit interfaces comprising a non-conductive material to electrically isolate the working fluid tubes from the wall.

[0133] Aspect 23. The electrically isolated box according to aspect 21 or 22, further comprising one or more entry / exit interfaces at the wall to allow the power line to pass through, the entry / exit interface comprising a non-conductive material to electrically isolate the power line from the wall.

[0134] Aspect 24. An electrical isolation box according to aspect 22 or 23, wherein the non-conductive material comprises rubber.

[0135] Aspect 25. The electrical isolation box according to any one of aspects 21 to 24, further comprising sound insulation material at one or more walls.

[0136] The terms used in this specification are intended to describe specific embodiments and are not restrictive. Unless otherwise clearly indicated, the terms "a", "an", and "the" also include plural forms. The terms "comprise" and / or "include", when used in this specification, indicate the existence of the stated features, numbers, steps, operations, elements and / or parts, but do not exclude the existence or additional presence of one or more other features, numbers, steps, operations, elements and / or parts.

[0137] With respect to the foregoing description, it should be understood that, without departing from the scope of the invention, changes may be made thereto in detail, particularly in the structural materials employed and the shapes, sizes and arrangements of the components. This specification and the described embodiments are exemplary only, and the actual scope and spirit of the invention are specified by the appended claims.

Claims

1. A transport climate control system configured to provide climate control within a climate controlled space towed by a vehicle, the transport climate control system comprising: one or more climate control circuit components, including a compressor; a drive module configured to receive power from a vehicle power network to power the compressor, the vehicle power network including a rechargeable energy storage system; as well as an electrical isolation box configured to house the driver module and the one or more climate control circuit components and to electrically isolate the driver module and the one or more climate control circuit components at a climate control system potential reference that is different from a potential reference of a vehicle chassis to which the electrical isolation box is connected.

2. The transportation climate control system of claim 1, wherein: The electrically isolated box includes one or more walls defining an at least partially enclosed space, the electrically isolated box including one or more plastic or metal materials at the one or more walls.

3. A transport climate control system according to claim 1 or 2, wherein: The driver module and the one or more climate control circuit components are electrically isolated from the electrically isolated box.

4. A transport climate control system according to any one of claims 1 to 3, wherein: The electrically isolated box also includes a non-conductive material disposed at an interface that allows a working fluid pipe from the compressor or a power line from the drive module to pass through a wall of the electrically isolated box.

5. A transport climate control system according to any one of claims 1 to 4, wherein: Also included is a mounting plate having a non-conductive material inside the electrically isolated box to support the driver module and the one or more climate control circuit components and electrically isolate the driver module and the one or more climate control circuit components from the electrically isolated box.

6. A transport climate control system according to any one of claims 1 to 5, wherein: The driving module is configured to provide high voltage power referring to Class B of ISO 6469-3, the high voltage power having a maximum operating voltage between 60 VDC and 1500 VDC or between 30 VAC and 1000 VAC.

7. A transport climate control system according to any one of claims 1 to 6, wherein: The climate control circuit component also includes a heater.

8. The transportation climate control system of claim 7, wherein: The driving module includes a DC-AC inverter to supply power to at least one of the compressor and the heater.

9. The transportation climate control system of claim 8, wherein: The drive module also includes one or more DC-DC converters electrically connected to the DC-AC inverter.

10. The transportation climate control system of claim 8, wherein: Also included is a power distribution module connected to the DC-AC inverter, the power distribution module being located outside the electrical isolation box to distribute power from the vehicle power network.

11. The transportation climate control system of claim 7, wherein: The driving module includes an isolation transformer to supply power to at least one of the compressor and the heater.

12. The transportation climate control system of claim 11, wherein: Also included is a switch downstream of the isolation transformer to distribute power from the isolation transformer to one of the compressor and the heater.

13. The transportation climate control system of claim 11, wherein: Also included is a DC-AC inverter connecting the isolation transformer to the vehicle power network, the DC-AC inverter being located outside the electrical isolation box.

14. A transport climate control system according to any one of claims 1 to 13, wherein: Also included is a fan inside the electrically isolated box.

15. A method of electrically isolating hazardous voltages from a vehicle powered transportation climate control system for providing climate control within a climate controlled space towed by a vehicle, the method comprising: providing power to one or more climate control circuit components of the vehicle powered transportation climate control system via a drive module, the climate control circuit components including a compressor, the drive module being configured to receive power from a vehicle power network including a rechargeable energy storage system; as well as The driver module and the one or more climate control circuit components are electrically isolated via an electrical isolation box at a climate control system electrical potential reference that is different from a potential reference of a vehicle chassis to which the electrical isolation box is connected.

16. The method according to claim 15, wherein: The electrically isolating further includes positioning the driver module and the one or more climate control circuit components inside the electrically isolated box and electrically isolating the driver module and the one or more climate control circuit components from the electrically isolated box.

17. An electrical isolation box, comprising: one or more walls defining an at least partially enclosed space, the electrically isolated box comprising one or more plastic or metal materials at the one or more walls; as well as A mounting mechanism within the at least partially enclosed space, the mounting mechanism being configured to support one or more climate control circuit components and to electrically isolate the one or more climate control circuit components at a climate control system electrical potential reference that is different from a potential reference of a vehicle chassis to which the electrical isolation box is connected.

18. The electrical isolation box of claim 17, wherein: Also included is one or more entry / exit interfaces at the wall to allow working fluid tubes from the climate control circuit components to pass therethrough, the entry / exit interfaces comprising a non-conductive material to electrically isolate the working fluid tubes from the wall.

19. The electrical isolation box of claim 17, wherein: Also included is one or more entry / exit interfaces at the wall to allow power lines to pass through, the entry / exit interfaces comprising a non-conductive material to electrically isolate the power lines from the wall.

20. The electrical isolation box of claim 17, wherein: Also included is sound insulating material at the one or more walls.

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