CN220973896U - Electric power system and electric automobile - Google Patents

Abstract

The utility model belongs to the technical field of power equipment, and particularly relates to an electric power system and an electric automobile. The electric power system comprises a bracket component, a power battery component, a driving component, a heat dissipation component and a power conversion output component, wherein the bracket component comprises a base, a frame body and a protective cover, the protective cover is arranged on the base and forms a containing cavity with the base, the frame body is positioned in the containing cavity and connected with the base, the power battery component is arranged on the frame body, the driving component is positioned in the containing cavity and is arranged on the base, the heat dissipation component is positioned in the containing cavity and is arranged on the frame body and is used for dissipating heat of the driving component, the power conversion output component is positioned in the containing cavity and is arranged on the frame body, and the driving component, the heat dissipation component and the power conversion output component are respectively and electrically connected with the power battery component. According to the electric power system, the power battery assembly, the heat dissipation assembly and the power conversion output assembly are concentrated on the same frame body, and the integration level is high.

Description

Electric power system and electric automobile

Technical Field

The utility model belongs to the technical field of power equipment, and particularly relates to an electric power system and an electric automobile.

Background

At present, most people adopt a traditional fuel engine as a power source to provide driving force for other equipment, but the exhaust tail gas of the fuel engine is serious and causes pollution to the environment. In order to reduce environmental pollution, power system devices are gradually changed from traditional fuel power to non-fuel power systems (such as new fuel, pure electric, hybrid power devices and the like). However, the existing non-fuel power system device generally comprises a power battery assembly, a driving assembly, a heat dissipation assembly, various controllers and the like, so that the components are more, the occupied space of the non-fuel power system is larger, and the production cost is higher.

Disclosure of utility model

The utility model aims to at least solve the problem that the production cost is increased due to the low integration level of the traditional non-fuel power system. The aim is achieved by the following technical scheme:

a first aspect of the present utility model proposes an electric power system comprising:

The support assembly comprises a base, a support body and a protective cover, wherein the protective cover is arranged on the base and forms a containing cavity with the base, and the support body is positioned in the containing cavity and is connected with the base;

The power battery component is arranged on the frame body;

the driving assembly is positioned in the accommodating cavity and is mounted on the base;

The heat dissipation assembly is positioned in the accommodating cavity and is arranged on the frame body and used for dissipating heat of the driving assembly;

the power conversion output assembly is positioned in the accommodating cavity and is arranged on the frame body;

The driving assembly, the heat dissipation assembly and the power conversion output assembly are respectively and electrically connected with the power battery assembly.

Compared with the existing fuel power, the electric power system provided by the utility model can reduce the harmful pollution to the environment. Through setting up drive assembly on the base, because drive assembly is comparatively heavy, can make overall system's focus lean on down, be difficult for empting or turn on one's side, guarantee overall system's stability and reliability, drive assembly, radiator unit and power conversion output subassembly set up on the support body, make power battery assembly, radiator unit and power conversion output subassembly can concentrate on same support body, the integrated level is higher, drive assembly on the cooperation base, further make overall system's occupation space reduce, simultaneously because integrated between each subassembly together, connecting tube's use amount between two liang of components has been reduced, and then the cost is reduced.

In addition, the electric power system according to the utility model may also have the following additional technical features:

In some embodiments of the utility model, the drive assembly has a cooling water channel, and the heat dissipation assembly includes:

The outlet end of the radiating water tank is communicated with the inlet end of the cooling water channel, and the inlet end of the radiating water tank is communicated with the outlet end of the cooling water channel;

the heat dissipation water pump is arranged at the outlet end of the heat dissipation water tank and can drive cooling water in the heat dissipation water tank to flow;

The expansion water tank is communicated with the radiating water tank, and the height of the expansion water tank is greater than that of the radiating water tank along the height direction of the bracket assembly.

In some embodiments of the utility model, the drive assembly comprises:

A drive motor having a first cooling water path;

The motor controller is arranged on the driving motor and is in control connection with the driving motor, the motor controller is provided with a second cooling water channel, the first cooling water channel is communicated with the second cooling water channel and forms the cooling water channel, and the motor controller is electrically connected with the power battery assembly.

In some embodiments of the utility model, the drive assembly further comprises an oil pump electrically connected to the power cell assembly.

In some embodiments of the utility model, the power cell assembly includes:

the output end of the high-voltage distribution box is electrically connected with the driving assembly, the heat dissipation assembly and the power conversion output assembly respectively;

a vehicle-mounted charger;

The output end of the power battery pack is electrically connected with the input end of the high-voltage distribution box, and the input end of the power battery pack is electrically connected with the vehicle-mounted charging machine.

In some embodiments of the utility model, the power battery pack comprises at least two power cells, at least two of the power cells being arranged in series.

In some embodiments of the present utility model, the frame body includes a fixing component and at least three spacers, the fixing component is disposed on the base, the at least three spacers are disposed on the same side of the fixing component at intervals along a height direction of the bracket component, and a receiving cavity is formed between adjacent spacers, and the power battery is disposed in the receiving cavity and corresponds to the receiving cavity one by one.

In some embodiments of the present utility model, the electric power system further includes a complete machine controller, the complete machine controller is located in the accommodating cavity and connected to the frame body, and the complete machine controller is electrically connected to the power battery assembly and the driving assembly, respectively.

In some embodiments of the utility model, the power conversion output assembly includes a DC/DC power conversion module and a DC/AC power conversion module, the DC/DC power conversion module and the DC/AC power conversion module being electrically connected to the power cell assembly, respectively.

The second aspect of the utility model provides an electric automobile, which is provided with the electric power system.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the utility model. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:

FIG. 1 schematically illustrates an overall structural schematic of an electric powertrain according to an embodiment of the present utility model;

FIG. 2 is a schematic view of the electric power system of FIG. 1 from a first perspective with the protective cover removed;

FIG. 3 is a schematic view of the electrical power system of FIG. 1 from a second perspective with the protective cover removed;

Fig. 4 schematically shows a schematic circuit configuration among a power battery assembly, a driving assembly and a power conversion output assembly of an electric power system according to an embodiment of the present utility model.

The reference numerals in the drawings are as follows:

100. an electric power system;

11. a base; 121. fixing the column; 122. a partition; 13. a protective cover;

21. A high voltage distribution box; 2110. outputting a negative electrode interface; 2111. a battery negative electrode interface; 2112. a heating input interface; 2113. a heating output interface; 2114. a battery positive electrode interface; 2115. a communication output interface; 2116. a communication input interface; 2117. a debug interface; 2118. a whole vehicle communication interface; 2119. outputting an anode interface; 2121. a total negative relay; 2122. BMS master control; 2123. heating the fuse; 2124. heating the positive relay; 2125. pre-charging a relay; 2126. pre-charging a resistor; 2127. a temperature controller; 2128. a hall sensor; 2129. a main positive relay; 21210. a branch relay; 21211. a branch fuse; 22. a vehicle-mounted charger; 231. a power battery;

31. a driving motor; 32. a motor controller; 33. driving a pump;

41. A heat radiation water tank; 42. a heat radiation water pump; 43. an expansion tank;

51. A DC/DC power conversion module; 52. a DC/AC power conversion module;

60. And a complete machine controller.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "includes," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order described or illustrated, unless an order of performance is explicitly stated. It should also be appreciated that additional or alternative steps may be used.

Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.

For ease of description, spatially relative terms, such as "inner," "outer," "lower," "below," "upper," "above," and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Accordingly, the example term "below … …" may include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions) and the spatial relative relationship descriptors used herein interpreted accordingly.

At present, most people adopt a traditional fuel engine as a power source to provide driving force for other equipment, but the exhaust tail gas of the fuel engine is serious and causes pollution to the environment. In order to reduce environmental pollution, power system devices are gradually changed from traditional fuel power to non-fuel power systems (such as new fuel, pure electric, hybrid power devices and the like). However, the existing non-fuel power system device generally comprises a power battery assembly, a driving assembly, a heat dissipation assembly, various controllers and the like, so that the components are more, the occupied space of the non-fuel power system is larger, and the production cost is higher.

Fig. 1 schematically shows an overall structural schematic of an electric power system 100 according to an embodiment of the present utility model. Fig. 2 is a schematic diagram of the electric power system 100 of fig. 1 from a first view with the protective cover 13 removed. As shown in fig. 1 and 2, the present utility model proposes an electric power system 100 and an electric vehicle. The electric power system 100 comprises a bracket assembly, a power battery assembly, a driving assembly, a heat dissipation assembly and a power conversion output assembly, wherein the bracket assembly comprises a base 11, a frame body and a protective cover 13, the protective cover 13 is covered on the base 11 and forms a containing cavity with the base 11, the frame body is positioned in the containing cavity and connected with the base 11, the power battery 231 assembly is arranged on the frame body, the driving assembly is positioned in the containing cavity and is arranged on the base 11, the heat dissipation assembly is positioned in the containing cavity and is arranged on the frame body and used for dissipating heat of the driving assembly, the power conversion output assembly is positioned in the containing cavity and is arranged on the frame body, and the driving assembly, the heat dissipation assembly and the power conversion output assembly are respectively and electrically connected with the power battery 231 assembly.

According to the electric power system 100 of the present utility model, harmful pollution to the environment can be reduced as compared with the existing fuel power. Through setting up drive assembly on base 11, because drive assembly is comparatively heavy, can make overall system's focus lean on down, be difficult for empting or turn on one's side, guarantee overall system's stability and reliability, drive assembly, radiator unit and power conversion output subassembly set up on the support body, make power battery pack, radiator unit and power conversion output subassembly can concentrate on same support body, the integrated level is higher, drive assembly on the cooperation base 11, further make overall system's occupation space reduce, simultaneously because integrated between each subassembly together, the use amount of connecting tube between two liang of subassemblies has been reduced, and then the cost is reduced.

Specifically, in the present embodiment, the base 11 is used for supporting the frame body, the protection cover 13, and the power battery assembly, the driving assembly, the heat dissipation assembly, and the power conversion output assembly located in the protection cover 13, while the above components are assembled to the component to be driven, so as to achieve the purpose of fixing. The frame body is used for fixing and connecting the power battery assembly, the driving assembly, the heat dissipation assembly and the power conversion output assembly. The protection cover 13 can protect the whole electric power system 100, and impurities such as dust are reduced to enter the accommodating cavity.

In some embodiments of the present utility model, as shown in fig. 3, the driving assembly has a cooling water channel, and the heat dissipation assembly includes:

The cooling water tank 41, the outlet end of the cooling water tank 41 is communicated with the inlet end of the cooling water channel, and the inlet end of the cooling water tank 41 is communicated with the outlet end of the cooling water channel;

A heat radiation water pump 42, wherein the heat radiation water pump 42 is arranged at the outlet end of the heat radiation water tank 41 and can drive the cooling water in the heat radiation water tank 41 to flow;

Expansion tank 43, expansion tank 43 is in communication with radiator tank 41, and the height of expansion tank 43 is greater than the height of radiator tank 41 in the height direction of the bracket assembly.

Specifically, in the present embodiment, the radiator tank 41 has a first cavity therein for accommodating cooling water, an inlet end of the radiator tank 41 is communicated with an outlet end of the cooling water passage, and an outlet end of the radiator tank 41 is communicated with an inlet end of the cooling water passage. The cooling water in the cooling water tank 41 is communicated with the cooling water channel, and the cooling water pump 42 is arranged at the outlet end of the cooling water tank 41, so that the cooling liquid can be driven unidirectionally, the flow and circulation of the cooling liquid are promoted, the cooling liquid is further ensured to timely take away the heat of the driving assembly, and the cooling purpose is realized.

Specifically, in the present embodiment, the expansion tank 43 communicates with the radiator tank 41 for accommodating the expansion amount of the cooling water in the electric power system 100, and also plays a role of constant pressure and replenishing the electric power system 100 with water. Along the height direction of the bracket assembly, the height of the expansion water tank 43 is larger than that of the heat radiation water tank 41, so that the expansion water tank 43 can smoothly flow cooling liquid into the heat radiation water tank 41, driving parts such as a driving pump 33 body and the like can be omitted, and unidirectional supplement of the cooling water can be realized only by means of gravity.

In some embodiments of the present utility model, as shown in fig. 2, the driving assembly includes:

A drive motor 31, the drive motor 31 having a first cooling water path;

The motor controller 32, the motor controller 32 is located on the driving motor 31 and is connected with driving motor 31 control, and the motor controller 32 has the second cooling water route, and first cooling water route and second cooling water route intercommunication and jointly constitute the cooling water course, and motor controller 32 and driving motor 31 are connected with power battery subassembly electricity respectively.

Specifically, in the present embodiment, the power battery assembly can supply electric power to the driving motor 31, the motor controller 32 can control the driving or function of the driving motor, and the driving motor 31 can be used as a main power source to provide main driving force for other mechanical devices (such as an electric automobile or other devices requiring torque of the driving motor 31). The driving motor 31 is internally provided with a first cooling water channel, the first cooling water channel is internally used for supplementing cooling liquid, and heat generated by the driving motor 31 can be exchanged during operation of the driving motor 31, so that the cooling operation of the cooling assembly on the driving motor 31 is realized.

Specifically, the drive end of the drive motor 31 can pass through the protective cover 13 and be in driving connection with an external member to be driven.

Specifically, in the present embodiment, the motor controller 32 has a second cooling water channel therein, and the first cooling water channel and the second cooling water channel together constitute a cooling water channel, and the first cooling water channel and the second cooling water channel are disposed in series or in parallel. Under the condition that the first cooling water channel and the second cooling water channel are connected in series, the inlet end of the first cooling water channel is communicated with the outlet end of the radiating component, the outlet end of the first cooling water channel is communicated with the inlet end of the second cooling water channel, and the outlet end of the second cooling water channel is communicated with the inlet end of the radiating component. Under the condition that the first cooling water channel and the second cooling water channel are connected in parallel, the inlet end of the first cooling water channel and the inlet end of the second cooling water channel are respectively communicated with the outlet end of the radiating component, and the outlet end of the first cooling water channel and the outlet end of the second cooling water channel are respectively communicated with the inlet end of the radiating component.

The first cooling water channel and the second cooling water channel are respectively arranged on the driving motor 31 and the motor controller 32, so that the driving motor 31 and the motor controller 32 in the operation process can be respectively cooled, and the cooling effect of the driving assembly and the operation reliability are improved.

In some embodiments of the present utility model, as shown in fig. 2, the drive assembly further includes an oil pump that is electrically connected to the power cell assembly. In this embodiment, when the driving force of the driving motor 31 is insufficient, the driving oil pump can cooperate with the driving motor 31 to drive the workpiece to be driven, so that the driving force of the electric power system 100 can be increased, the electric power system 100 can adapt to the operation of more scenes, and the electric power system 100 can be ensured to operate with high efficiency.

In some embodiments of the present utility model, as shown in fig. 2, a power cell assembly includes:

The output end of the high-voltage distribution box 21 is electrically connected with the driving component, the heat dissipation component and the power conversion output component respectively;

A vehicle-mounted charger 22;

The output end of the power battery pack is electrically connected with the input end of the high-voltage distribution box 21, and the input end of the power battery pack is electrically connected with the vehicle-mounted charger 22.

Specifically, in the present embodiment, the high-voltage distribution box 21 is used for on-off, control or protection in the power generation, transmission, distribution, electric energy conversion and consumption of the electric power system 100, and mainly includes a housing, and a BMS (Battery management system (Battery MANAGEMENT SYSTEM)) master control, a total negative relay 2121, a main positive relay 2129, a hall sensor 2128, a temperature controller 2127, a heating fuse 2123, a heating positive relay 2124, a pre-charging relay 2125, a pre-charging resistor 2126, a branch relay 21210, and a branch fuse 21211, which are respectively located in the housing.

Specifically, as shown in fig. 4, a communication input interface 2116, a communication output interface 2115, a battery anode interface 2114, a battery cathode interface 2111, a debug interface 2117, a whole vehicle communication interface 2118, a heating input interface 2112, a heating output interface 2113, an output cathode interface 2110, and an output anode interface 2119 are provided on the housing. The first, second, third and fourth ports of the BMS main controller 2122 are electrically connected to the communication output interface 2115, the communication input interface 2116, the debug interface 2117 and the whole vehicle communication interface 2118, respectively. The battery positive interface 2114 is electrically connected to the thermostat 2127, the main positive relay 2129 is electrically connected to the output positive interface 2119, and the hall sensor 2128 is electrically connected between the thermostat 2127 and the main positive relay 2129. The heating fuse 2123 is electrically connected to the heating output, the precharge resistor 2126 is electrically connected to the output positive interface 2119, and the heating positive relay 2124 and the precharge relay 2125 are arranged in series and electrically connected between the heating fuse 2123 and the precharge resistor 2126. The heating input interface 2112 is electrically connected to the output negative interface 2110, and both ends of the total negative relay 2121 are electrically connected to the battery negative interface 2111 and the output negative interface 2110, respectively.

The vehicle-mounted charger 22 is a charger fixedly mounted on the power device, has the capability of safely and automatically fully charging the power battery 231 of the electric device, and can dynamically adjust charging current or voltage parameters according to data provided by a Battery Management System (BMS), execute corresponding actions and complete a charging process. The first input interface of the vehicle-mounted charger 22 is electrically connected with the output negative electrode interface 2110 of the high-voltage distribution box 21.

Specifically, in the present embodiment, both ends of the motor controller 32 are electrically connected to the output positive electrode interface 2119 and the output negative electrode interface 2110 of the high-voltage distribution box 21, respectively.

In some embodiments of the present utility model, the power battery pack includes at least two power cells 231, with at least two power cells 231 being disposed in series. In this embodiment, the power battery 231 is a power source for providing power to the power equipment, and is often referred to as a battery for providing power to an electric car, an electric train, an electric bicycle, and a golf cart. The power battery 231 is mostly a valve port sealed lead-acid battery, an open tubular lead-acid battery and a lithium iron phosphate battery. In this embodiment, three power batteries 231 are provided, and a series connection mode is adopted, so that the battery system combination with different electric quantities can be matched according to the use situation, and electric energy can be provided for the driving motor 31 and the auxiliary machine system through the high-voltage distribution box 21.

In some embodiments of the present utility model, as shown in fig. 2, the frame body includes a fixing component and at least three spacers 122, the fixing component is disposed on the base 11, the at least three spacers 122 are disposed on the same side of the fixing component at intervals along the height direction of the bracket component, and a receiving cavity is formed between adjacent spacers 122, and the power battery 231 is disposed in the receiving cavity and corresponds to the receiving cavity one by one. In this embodiment, the fixing assembly includes four fixing columns 121, and the four fixing columns 121 are respectively disposed around the partition 122, so as to support and fix the partition. The dividing piece in this embodiment is the plate body structure, and is equipped with three dividing piece 122, and three dividing piece sets up along the support body direction interval, and the holding chamber that the interval set up formed is used for laying power battery 231, and every power battery 231 installs in a holding intracavity in this embodiment, can realize the enough fixed operation to every power battery 231, has promoted steadiness ability. The high-voltage distribution box 21 is provided on the partition plate at the highest position.

Specifically, in this embodiment, the fixing columns 121 include a first plate body portion and a second plate body portion, and the first plate body portion and the second plate body portion are vertically disposed, so that one corner portion of the split piece is convenient to match and fix, and four fixing columns 121 can respectively match and fix four corner portions of the split piece, so that stability is improved. In this embodiment, the fixing column 121 and the divided member are connected by bolts, so that the common bolts are convenient to assemble and disassemble, the equipment is simple, and the operation efficiency of the operator during assembly and disassembly can be improved.

Specifically, in this embodiment, as shown in fig. 4, each power battery 231 is provided with a battery negative electrode port, a heating output port, a communication input port, a heating input port and a battery positive electrode port which are sequentially arranged from top to bottom, the battery positive electrode port is electrically connected with a battery positive electrode interface 2114 of the high-voltage distribution box 21, the battery negative electrode port is electrically connected with a battery negative electrode interface 2111 of the high-voltage distribution box 21, the battery heating input port and the battery heating output port are electrically connected with a heating output interface 2113 and a heating input interface 2112 of the high-voltage distribution box 21, and the battery communication input port and the battery communication output port are electrically connected with a communication output interface 2115 and a communication heat input interface of the high-voltage distribution box 21.

In some embodiments of the present utility model, as shown in fig. 2, the electric power system 100 further includes a complete machine controller 60, where the complete machine controller 60 is located in the accommodating cavity and connected to the frame body, and the complete machine controller 60 is electrically connected to the power battery assembly and the driving assembly, respectively. In this embodiment, the complete machine controller 60 is used for communication connection with the component to be driven, for example, the complete machine can be electrically connected with an electric automobile, and the electric automobile can control the motor controller 32 and the high-voltage distribution box 21 through the complete machine controller 60, so that intelligent operation is improved. In this embodiment, the power conversion output assembly includes two different power conversion modules, that is, the DC/DC power conversion module 51 and the DC/AC power conversion module 52, which can provide power sources for various mechanical devices, so as to satisfy the use scenarios of different power sources, and improve practicality and versatility.

Specifically, in the present embodiment, as shown in fig. 2 and 3, the first input port of the DC/DC power conversion module 51 and the first input port of the vehicle-mounted charger 22 are electrically connected to the output negative electrode interface 2110 of the high-voltage distribution box 21, respectively, the second input port of the DC/DC power conversion module 51 and the second input port of the vehicle-mounted charger 22 are electrically connected to the branch fuse 21211 of the high-voltage distribution box 21, respectively, the first port of the branch relay 21210 is electrically connected to the branch fuse 21211, the second port of the branch relay 21210 is electrically connected between the heating positive relay 2124 and the pre-charging relay 2125, and the third port of the branch relay 21210 is electrically connected between the hall sensor 2128 and the main positive relay 2129.

Further, the electric power system 100 of the present utility model adopts an independent pure electric power device, which has no emission and noise pollution, and meets the current legal policy and multi-scenario application requirements. Meanwhile, the driving motor 31, the oil pump and various power conversion devices are provided, so that a power source can be provided for various mechanical equipment and electrical equipment, different use situations can be met, and the practicability is high. Secondly, the power battery assembly, the high-voltage distribution box 21, the driving assembly and the heat dissipation assembly are integrally arranged, so that the consumption of high-low voltage wiring harnesses and pipelines is reduced, and the design cost is reduced. The multiple components are integrated, the structure is compact, the transportation is convenient, the space utilization rate is high, and more use scenes can be met. In addition, the electric power system 100 is provided with an independent heat dissipation component, so that the driving motor 31 and the like can achieve a better heat dissipation effect, and the power battery 231 can achieve high-efficiency and high-power output.

Specifically, in the present utility model, the power battery assembly is capable of performing a charging operation by the in-vehicle charger 22, and then is electrically connected to the motor controller 32, the heat radiation water pump 42, and the power conversion output assembly, respectively, by the high-voltage distribution box 21.

In some embodiments of the present utility model, the power conversion output assembly includes a DC/DC power conversion module 51 and a DC/AC power conversion module 52, the DC/DC power conversion module 51 and the DC/AC power conversion module 52 being electrically connected to the power cell assembly, respectively.

The utility model also provides an electric automobile with the electric power system 100.

The electric power system 100 of the electric vehicle according to the present utility model can reduce harmful pollution to the environment compared to the existing fuel power. Through setting up drive assembly on base 11, because drive assembly is comparatively heavy, can make overall system's focus lean on down, be difficult for empting or turn on one's side, guarantee overall system's stability and reliability, drive assembly, radiator unit and power conversion output subassembly set up on the support body, make power battery pack, radiator unit and power conversion output subassembly can concentrate on same support body, the integrated level is higher, drive assembly on the cooperation base 11, further make overall system's occupation space reduce, simultaneously because integrated between each subassembly together, the use amount of connecting tube between two liang of subassemblies has been reduced, and then the cost is reduced.

The present utility model is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present utility model are intended to be included in the scope of the present utility model. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.

Claims (10)

1. An electric power system, comprising:

The support assembly comprises a base, a support body and a protective cover, wherein the protective cover is arranged on the base and forms a containing cavity with the base, and the support body is positioned in the containing cavity and is connected with the base;

The power battery component is arranged on the frame body;

the driving assembly is positioned in the accommodating cavity and is mounted on the base;

The heat dissipation assembly is positioned in the accommodating cavity and is arranged on the frame body and used for dissipating heat of the driving assembly;

the power conversion output assembly is positioned in the accommodating cavity and is arranged on the frame body;

The driving assembly, the heat dissipation assembly and the power conversion output assembly are respectively and electrically connected with the power battery assembly.

2. The electric power system of claim 1, wherein the drive assembly has a cooling water channel, the heat sink assembly comprising:

The outlet end of the radiating water tank is communicated with the inlet end of the cooling water channel, and the inlet end of the radiating water tank is communicated with the outlet end of the cooling water channel;

the heat dissipation water pump is arranged at the outlet end of the heat dissipation water tank and can drive cooling water in the heat dissipation water tank to flow;

The expansion water tank is communicated with the radiating water tank, and the height of the expansion water tank is greater than that of the radiating water tank along the height direction of the bracket assembly.

3. The electric power system of claim 2, wherein the drive assembly comprises:

A drive motor having a first cooling water path;

The motor controller is arranged on the driving motor and is in control connection with the driving motor, the motor controller is provided with a second cooling water channel, the first cooling water channel is communicated with the second cooling water channel and forms the cooling water channel, and the motor controller is electrically connected with the power battery assembly.

4. The electric power system of claim 2, wherein the drive assembly further comprises an oil pump electrically connected to the power cell assembly.

5. The electric power system of claim 1, wherein the power cell assembly comprises:

the output end of the high-voltage distribution box is electrically connected with the driving assembly, the heat dissipation assembly and the power conversion output assembly respectively;

a vehicle-mounted charger;

The output end of the power battery pack is electrically connected with the input end of the high-voltage distribution box, and the input end of the power battery pack is electrically connected with the vehicle-mounted charging machine.

6. An electric power system as claimed in claim 5, characterized in that the power battery pack comprises at least two power batteries, at least two of the power batteries being arranged in series.

7. The electric power system according to claim 6, wherein the frame body comprises a fixing component and at least three separating pieces, the fixing component is arranged on the base, the at least three separating pieces are arranged on the same side of the fixing component at intervals along the height direction of the bracket component, a containing cavity is formed between every two adjacent separating pieces, and the power battery is arranged in the containing cavity and corresponds to the containing cavity one by one.

8. The electric power system of claim 1, further comprising a complete machine controller located in the receiving cavity and connected to the frame, the complete machine controller being electrically connected to the power cell assembly and the drive assembly, respectively.

9. The electric power system of claim 1, wherein the power conversion output assembly includes a DC/DC power conversion module and a DC/AC power conversion module, the DC/DC power conversion module and the DC/AC power conversion module being electrically connected to the power cell assembly, respectively.

10. An electric vehicle characterized by having an electric power system according to any one of claims 1-9.