Function expansion conversion device and electric vehicle

Abstract

The present invention provides a function expansion conversion device and an electric vehicle. The function expansion conversion device includes a power battery and a shell assembly. The shell assembly includes a first shell, a second shell and a storage component. The first shell is provided with a solar charging seat, the output end of the solar charging seat is electrically connected to the input end of the power battery, and the input end of the solar charging seat is used to be electrically connected to a solar charging device; the second shell is provided with a DC conversion circuit board and an inverter circuit board, the DC conversion circuit board is electrically connected to the output end of the power battery, the second shell is also provided with a USB output port, a cigarette lighter output port and an AC output port, the DC conversion circuit board is also electrically connected to the USB output port and the cigarette lighter output port; the inverter circuit board is electrically connected to the output end of the power battery, and the inverter circuit board is also electrically connected to the AC output port. The function expansion conversion device makes the power battery more convenient to use and at the same time makes the use cost of the power battery lower.

Description

Technical Field

[0001] The present invention relates to the technical field of electric vehicles, and in particular to a function expansion conversion device and an electric vehicle. Background Art

[0002] With the continuous development of the new energy industry, people's demand for electric vehicles is also increasing. Electric vehicles use power batteries as an energy source and use controllers, motors and other components to convert electrical energy into mechanical energy for movement.

[0003] In existing technology, power batteries serve as the energy source for electric vehicles. They are electrically connected to the motor, converting electrical energy into mechanical energy through the motor to power the electric vehicle. Because power batteries inherently output direct current (DC), they cannot serve as an energy source for small household appliances, limiting their use and making them less convenient to use. Furthermore, power batteries are charged using AC chargers. If a power outage occurs in a region and the stored energy in the power battery is depleted, the battery becomes unusable without timely recharging, rendering the electric vehicle unusable and resulting in high power battery operating costs. Summary of the Invention

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art and to provide a function expansion conversion device and an electric vehicle that make the power battery more convenient to use and at the same time lower the cost of using the power battery.

[0005] The object of the present invention is achieved through the following technical solutions:

[0006] A function expansion conversion device, comprising:

[0007] Power batteries; and

[0008] The housing assembly includes a first housing, a second housing, and a receiving member. The first housing is connected to the second housing to form a receiving cavity. The receiving member is located in the receiving cavity. The receiving member is connected to the first housing and the second housing respectively. The receiving member forms a receiving cavity. The power battery is placed in the receiving cavity, and the power battery is electrically connected to the receiving member. The first housing is provided with a solar charging stand. The output end of the solar charging stand is electrically connected to the input end of the power battery. The input end of the solar charging stand is used to be electrically connected to a solar charging device. The second housing is provided with a DC conversion line. Circuit board and inverter circuit board, the DC conversion circuit board and the inverter circuit board are arranged at intervals, the DC conversion circuit board and the inverter circuit board are both located in the accommodating cavity, the DC conversion circuit board is connected to the inner wall of the accommodating cavity, the DC conversion circuit board is electrically connected to the output end of the power battery, the second shell is also respectively provided with a USB output port, a cigarette lighter output port and an AC output port, the DC conversion circuit board is also electrically connected to the USB output port and the cigarette lighter output port; the inverter circuit board is electrically connected to the output end of the power battery, and the inverter circuit board is also electrically connected to the AC output port.

[0009] In one embodiment, the storage component includes an upper cover body, an intermediate body and a lower cover body, the intermediate body is respectively connected to the upper cover body and the lower cover body, the upper cover body is formed with a first through hole, the storage cavity is formed in the intermediate body, the first through hole is connected to the storage cavity, the upper cover body is respectively connected to the first shell and the second shell, the intermediate body is located in the accommodating cavity, and the lower cover body is respectively connected to the side of the first shell and the second shell facing away from the upper cover body.

[0010] In one embodiment, the upper cover includes a display panel and a control circuit board. The display panel is arranged on the top surface of the upper cover. The display panel is electrically connected to the control circuit board. The control circuit board is electrically connected to the output end of the power battery.

[0011] In one embodiment, a travel switch is provided at the bottom of the intermediate body, and one end of the travel switch is electrically connected to the control circuit board.

[0012] In one embodiment, the lower cover includes an MPPT circuit board, the MPPT circuit board is electrically connected to the solar charging stand, and the MPPT circuit board is also electrically connected to the input end of the power battery.

[0013] In one embodiment, the first shell is further provided with a first switch and a second switch, the first end of the first switch is electrically connected to the output end of the power battery, and the second end of the first switch is electrically connected to the control circuit board, the DC conversion circuit board and the inverter circuit board respectively; the first end of the second switch is electrically connected to the input end of the power battery, and the second end of the second switch is electrically connected to the MPPT circuit board.

[0014] In one embodiment, the first shell is further provided with an AC charging stand, which is spaced apart from the solar charging stand. The second end of the second switch is electrically connected to the output end of the AC charging stand, and the input end of the AC charging stand is used to be electrically connected to an external power supply.

[0015] In one embodiment, the shell assembly also includes a protective plate, which is located in the accommodating cavity and connected to the second shell so that the accommodating cavity is divided into a first cavity and a second cavity. The storage component is located in the first cavity, and the DC conversion circuit board and the inverter circuit board are both located in the second cavity. The inverter circuit board is connected to the protective plate.

[0016] In one embodiment, a ventilation hole is formed in the second shell, and the ventilation hole is communicated with the accommodating cavity.

[0017] An electric vehicle comprises the function expansion conversion device described in any one of the above embodiments.

[0018] Compared with the prior art, the present invention has at least the following advantages:

[0019] 1. Since the DC conversion circuit board is electrically connected to the output end of the power battery, the second shell is also provided with a USB output port, a cigarette lighter output port and an AC output port, and the DC conversion circuit board is also electrically connected to the USB output port and the cigarette lighter output port; the inverter circuit board is electrically connected to the output end of the power battery, and the inverter circuit board is also electrically connected to the AC output port, so that the power battery can convert electrical energy through the DC conversion circuit board and the inverter circuit board, the DC conversion circuit board shunts the converted DC power to the USB output port and the cigarette lighter output port, and the inverter circuit board transmits the converted AC power to the AC output port, so that the power battery can not only output DC power through conversion by the DC conversion circuit board, but also output AC power through conversion by the inverter circuit board, thereby enabling the power battery to serve as an energy source for small household appliances, diversifying the use of the power battery, and making the power battery more convenient to use.

[0020] 2. Since the output end of the solar charging stand is electrically connected to the input end of the power battery, the input end of the solar charging stand is used to electrically connect to the solar charging device, so that a loop is formed between the solar charging device and the power battery, so that the solar charging device can convert solar energy into electrical energy and store it in the power battery, thereby avoiding the problem of power battery energy depletion caused by power outages, and the power battery is charged under the continuous conversion of the solar charging device, so that the power battery can be replenished with energy in time, so that the power battery can be used continuously, so that the electric vehicle can be used continuously, and thus the cost of using the power battery is lower. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 This is a structural diagram of a function expansion conversion device according to an embodiment;

[0023] Figure 2 A schematic structural diagram of a function expansion conversion device according to one embodiment from one perspective;

[0024] Figure 3 A schematic structural diagram of a function expansion conversion device according to an embodiment from another perspective;

[0025] Figure 4 for Figure 1 The exploded structural diagram of the housing assembly of the function expansion conversion device shown;

[0026] Figure 5 for Figure 4 A schematic diagram of the exploded structure of the receiving part of the housing assembly is shown;

[0027] Figure 6 A cross-sectional view of a function expansion conversion device according to an embodiment from one perspective;

[0028] Figure 7 Schematic diagram of the internal module structure of a function expansion conversion device according to one embodiment. DETAILED DESCRIPTION

[0029] To facilitate understanding of the present invention, the present invention will be described more fully below with reference to the accompanying drawings. The accompanying drawings illustrate preferred embodiments of the present invention. However, the present invention may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the present disclosure.

[0030] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0032] The present invention provides a function expansion conversion device, comprising a power battery and a housing assembly. Among them, the shell assembly includes a first shell, a second shell and a storage member. The first shell is connected to the second shell to form a accommodating cavity. The storage member is located in the accommodating cavity. The storage member is respectively connected to the first shell and the second shell. The storage member forms a storage cavity. The power battery is placed in the storage cavity, and the power battery is electrically connected to the storage member; the first shell is provided with a solar charging stand, the output end of the solar charging stand is electrically connected to the input end of the power battery, and the input end of the solar charging stand is used to be electrically connected to the solar charging device; the second shell is provided with a DC conversion circuit board and an inverter circuit board, the DC conversion circuit board and the inverter circuit board are spaced apart, the DC conversion circuit board and the inverter circuit board are both located in the accommodating cavity, the DC conversion circuit board is connected to the inner wall of the accommodating cavity, the DC conversion circuit board is electrically connected to the output end of the power battery, the second shell is also respectively provided with a USB output port, a cigarette lighter output port and an AC output port, the DC conversion circuit board is also electrically connected to the USB output port and the cigarette lighter output port; the inverter circuit board is electrically connected to the output end of the power battery, and the inverter circuit board is also electrically connected to the AC output port.

[0033] The above-mentioned function expansion conversion device, since the DC conversion circuit board is electrically connected to the output end of the power battery, the second shell is also respectively provided with a USB output port, a cigarette lighter output port and an AC output port, and the DC conversion circuit board is also electrically connected to the USB output port and the cigarette lighter output port respectively; the inverter circuit board is electrically connected to the output end of the power battery, and the inverter circuit board is also electrically connected to the AC output port, so that the power battery can convert electrical energy through the DC conversion circuit board and the inverter circuit board, the DC conversion circuit board shunts the converted DC power to the USB output port and the cigarette lighter output port, and the inverter circuit board transmits the converted AC power to the AC output port, so that the power battery can not only output DC power through the conversion of the DC conversion circuit board, but also output AC power through the conversion of the inverter circuit board, thereby enabling the power battery to be used as an energy source for small household appliances, diversifying the use of the power battery, and making the power battery more convenient to use. Since the output end of the solar charging stand is electrically connected to the input end of the power battery, the input end of the solar charging stand is used to electrically connect to the solar charging device, so that a loop is formed between the solar charging device and the power battery, so that the solar charging device can convert solar energy into electrical energy and store it in the power battery, thereby avoiding the problem of power battery energy depletion caused by power outages, and the power battery is charged under the continuous conversion of the solar charging device, so that the power battery can be replenished with energy in time, so that the power battery can be used continuously, so that the electric vehicle can be used continuously, and thus the cost of using the power battery is lower.

[0034] In order to better understand the technical solutions and beneficial effects of the present invention, the present invention is further described in detail below with reference to specific embodiments:

[0035] like Figures 1 to 7As shown, a function expansion conversion device 10 of an embodiment includes a power battery 100 and a shell assembly 200. The shell assembly 200 includes a first shell 210, a second shell 220 and a storage member 230. The first shell 210 is connected to the second shell 220 to form a receiving cavity 201. The storage member 230 is located in the receiving cavity 201. The storage member 230 is connected to the first shell 210 and the second shell 220 respectively. The storage member 230 forms a receiving cavity 2321. The power battery 100 is placed in the receiving cavity 2321, and the power battery 100 is electrically connected to the storage member 230. The first shell 210 is provided with a solar charging stand 211. The output end of the solar charging stand 211 is electrically connected to the input end of the power battery 100. The input end of the solar charging stand 211 is used to be electrically connected to a solar charging device. The second shell 220 is provided with a DC converter. The DC conversion circuit board 221 and the inverter circuit board 222 are spaced apart, and the DC conversion circuit board 221 and the inverter circuit board 222 are both located in the accommodating cavity 201. The DC conversion circuit board 221 is connected to the inner wall of the accommodating cavity 201, and the DC conversion circuit board 221 is electrically connected to the output end of the power battery 100. The second shell 220 is also respectively provided with a USB output port 223, a cigarette lighter output port 224 and an AC output port 225. The DC conversion circuit board 221 is also electrically connected to the USB output port 223 and the cigarette lighter output port 224; the inverter circuit board 222 is electrically connected to the output end of the power battery 100, and the inverter circuit board 222 is also electrically connected to the AC output port 225.

[0036] In this embodiment, the number of USB output ports 223 is multiple, and the second shell 220 is provided with a DC conversion circuit board 221 and an inverter circuit board 222. The DC conversion circuit board 221 is provided with a DC-DC module. The DC-DC module converts the energy in the power battery 100 into DC power for output, and the DC power is shunted to the cigarette lighter output port 224 and each USB output port 223, so that the power battery 100 can provide energy to external electronic components through the USB output port 223 and the cigarette lighter output port 224; the inverter circuit board 222 is provided with an inverter module and a touch inverter output switch 2221. The inverter module converts the energy in the power battery 100 into AC power for output, and the touch inverter output switch 2221 is provided. The first end of 221 is electrically connected to the inverter circuit board 222, which is electrically connected to the output end of the power battery 100. The second end of the touch-sensitive inverter output switch 2221 is electrically connected to the AC output port 225. When the touch-sensitive inverter output switch 2221 is in the closed state, the external power device is electrically connected to the AC output port 225, forming a circuit between the power battery 100 and the external power device, allowing the power battery 100 to provide energy to the external power device. The energy in the power battery 100 is converted by the DC conversion circuit board 221 and the inverter circuit board 222 and output through the USB output port 223, the cigarette lighter output port 224, and the AC output port 225, thereby expanding the functions of the power battery 100. In one embodiment, there are three USB output ports 223.

[0037] The above-mentioned function expansion conversion device 10, since the DC conversion circuit board 221 is electrically connected to the output end of the power battery 100, the second shell 220 is also provided with a USB output port 223, a cigarette lighter output port 224 and an AC output port 225, the DC conversion circuit board 221 is also electrically connected to the USB output port 223 and the cigarette lighter output port 224; the inverter circuit board 222 is electrically connected to the output end of the power battery 100, and the inverter circuit board 222 is also electrically connected to the AC output port 225, so that the power battery 100 can be connected to the power battery 100 through the DC conversion circuit board 221 and the inverter circuit board 2 22 converts the electrical energy, the DC conversion circuit board 221 shunts the converted DC power to the USB output port 223 and the cigarette lighter output port 224, and the inverter circuit board 222 transmits the converted AC power to the AC output port 225, so that the power battery 100 can not only output DC power through the conversion of the DC conversion circuit board 221, but also output AC power through the conversion of the inverter circuit board 222, thereby enabling the power battery 100 to be used as an energy source for small household appliances, diversifying the use of the power battery 100, and making the power battery 100 more convenient to use. Since the output end of the solar charging stand 211 is electrically connected to the input end of the power battery 100, the input end of the solar charging stand 211 is used to electrically connect to the solar charging device to form a loop between the solar charging device and the power battery 100, so that the solar charging device can convert solar energy into electrical energy and store it in the power battery 100, thereby avoiding the problem of energy depletion of the power battery 100 caused by power outages, and allowing the power battery 100 to be charged under the continuous conversion of the solar charging device, so that the power battery 100 can be replenished with energy in time, so that the power battery 100 can be used continuously, so that the electric vehicle can be used continuously, and thus the cost of using the power battery 100 is lower.

[0038] like Figures 3 to 5As shown, in one embodiment, the storage member 230 includes an upper cover 231, an intermediate body 232 and a lower cover 233. The intermediate body 232 is respectively connected to the upper cover 231 and the lower cover 233. The upper cover 231 is formed with a first through hole 2311. The storage cavity 2321 is formed in the intermediate body 232. The first through hole 2311 is connected to the storage cavity 2321. The upper cover 231 is respectively connected to the first shell 210 and the second shell 220. The intermediate body 232 is located in the accommodating cavity 201. The lower cover 233 is respectively connected to the side of the first shell 210 and the second shell 220 facing away from the upper cover 231, so that during the use of the storage component 230, if the storage component 230 is partially damaged, only the corresponding damaged part needs to be replaced, and the remaining undamaged parts of the storage component 230 can still be used, thereby making the storage component 230 more convenient to use, and further making the function expansion conversion device 10 more convenient to use, and thus making the power battery 100 more convenient to use.

[0039] like Figure 2 、 Figure 6 and Figure 7 As shown, in one embodiment, the upper cover 231 includes a display panel 2312 and a control circuit board 2313. The display panel 2312 is arranged on the top surface of the upper cover 231. The display panel 2312 is electrically connected to the control circuit board 2313. The control circuit board 2313 is electrically connected to the output end of the power battery 100. In this embodiment, a control module and a touch switch 2313a are provided on the control circuit board 2313. The first end of the touch switch 2313a is electrically connected to the control circuit board 2313, which is electrically connected to the output terminal of the power battery 100. The second end of the touch switch 2313a is electrically connected to the display panel 2312. When the touch switch 2313a is in the closed state, the display panel 2312 forms a circuit with the power battery 100 through the touch switch 2313a, so that the display panel 2312 displays the charge and discharge status of the power battery 100 and the overall performance of the function expansion conversion device 10. This allows the operator to monitor the real-time status of the power battery 100 and take appropriate measures in a timely manner, thereby improving the convenience of using the function expansion conversion device 10 and the power battery 100. In this embodiment, the display panel 2312 is an LCD (Liquid Crystal Display) screen.

[0040] like Figure 2 、 Figure 5 and Figure 6As shown, in one embodiment, a limit switch 2322 is provided at the bottom of the intermediate body 232, and one end of the limit switch 2322 is electrically connected to the control circuit board 2313. When the power battery 100 is placed in the storage cavity 2321, the limit switch 2322 is in a closed state, and the display panel 2312 displays the real-time status of the power battery 100. When the power battery 100 is not placed in the storage cavity 2321, the limit switch 2322 is in a disconnected state, the circuit between the display panel 2312 and the power battery 100 is disconnected, the display panel 2312 is not lit, and the function expansion conversion device 10 is not running, so that the function expansion conversion device 10 can be automatically connected or disconnected through the limit switch 2322, thereby making the function expansion conversion device 10 more convenient to use, and thus making the power battery 100 more convenient to use.

[0041] like Figure 3 、 Figure 5 and Figure 7 As shown, in one embodiment, the lower cover 233 includes an MPPT (Maximum Power Point Tracking) circuit board 2331. The MPPT circuit board 2331 is electrically connected to the solar charging station 211 and is also electrically connected to the input terminal of the power battery 100. In this embodiment, the MPPT circuit board 2331 is provided with an MPPT module. The MPPT module can detect the power voltage of the solar charging device in real time and track the highest voltage and current values, allowing the system to charge the power battery 100 at maximum power output. This improves the charging efficiency of the solar charging device for the power battery 100, allowing the power battery 100 to be used again more quickly, thereby reducing the cost of using the power battery 100.

[0042] like Figure 3 、 Figure 5 、 Figure 6 and Figure 7As shown, in one embodiment, the first housing 210 is further provided with a first switch 212 and a second switch 213. The first end of the first switch 212 is electrically connected to the output end of the power battery 100, and the second end of the first switch 212 is electrically connected to the control circuit board 2313, the DC conversion circuit board 221, and the inverter circuit board 222 respectively. The first end of the second switch 213 is electrically connected to the input end of the power battery 100, and the second end of the second switch 213 is electrically connected to the MPPT circuit board 2331. In this embodiment, the first switch 212 is used to control the circuit formed between the power battery 100 and the control circuit board 2313, the DC conversion circuit board 221, and the inverter circuit board 222; the second switch 213 is used to control the circuit formed between the power battery 100 and the MPPT circuit board 2331. This ensures that the circuits formed within the function expansion conversion device 10 do not interfere with each other, thereby improving the convenience of use of the function expansion conversion device 10 and, in turn, improving the convenience of use of the power battery 100.

[0043] like Figure 3 and Figure 7 As shown, in one embodiment, the first housing 210 is further provided with an AC charging station 214, which is spaced apart from the solar charging station 211. The second end of the second switch 213 is electrically connected to the output end of the AC charging station 214, and the input end of the AC charging station 214 is used to electrically connect to an external power source. In this embodiment, the second switch 213 is also used to control the circuit formed between the AC charging station 214 and the power battery 100. When the second switch 213 is in a closed state, both the solar charging station 211 and the AC charging station 214 are connected to the power battery 100, that is, the solar charging device and the external power source charge the power battery 100 simultaneously, resulting in a faster charging speed for the power battery 100, thereby improving the charging efficiency of the power battery 100 and making the power battery 100 more convenient to use.

[0044] like Figure 4 and Figure 6 As shown, in one embodiment, the shell assembly 200 also includes a protective plate 240, which is located in the accommodating cavity 201 and connected to the second shell 220, so that the accommodating cavity 201 is divided into a first cavity 2011 and a second cavity 2012, and the storage part 230 is located in the first cavity 2011, and the DC conversion circuit board 221 and the inverter circuit board 222 are both located in the second cavity 2012, and the inverter circuit board 222 is connected to the protective plate 240, so that the protective plate 240 protects the inverter circuit board 222, so that the inverter circuit board 222 is less susceptible to external force, thereby making the inverter circuit board 222 more difficult to be damaged, and thus making the service life of the inverter circuit board 222 longer, thereby making the use cost of the function expansion conversion device 10 lower.

[0045] like Figure 2 and Figure 4 As shown, in one embodiment, the second shell 220 is formed with a ventilation hole 226, and the ventilation hole 226 is connected to the accommodating cavity 201, so that when the power battery 100 is converted in the shell assembly 200, the heat generated during the conversion process is dissipated to the outside through the ventilation hole 226, so that the temperature inside the shell assembly 200 is lower, so that the power battery 100 is less likely to expand due to heat in the shell assembly 200, and the structure of the power battery 100 is less likely to be damaged, thereby extending the service life of the power battery 100 and reducing the cost of using the power battery 100.

[0046] like Figure 2 and Figure 6 As shown, in one embodiment, the second housing 220 is formed with multiple Type C output ports 227. Each Type C output port 227 is electrically connected to the DC conversion circuit board 221. The DC-DC module converts the energy in the power battery 100 into DC power for output. The DC power is then diverted to each Type C output port 227, allowing the power battery 100 to provide energy to external electronic components through the Type C output ports 227. In this embodiment, there are three Type C output ports 227.

[0047] like Figure 2 and Figure 7 As shown, in one embodiment, the second shell 220 is provided with a lighting lamp 228 and a light-controlled switch 229. The first end of the light-controlled switch 229 is electrically connected to the DC conversion circuit board 221, and the second end of the light-controlled switch 229 is electrically connected to the lighting lamp 228. In this embodiment, the lighting lamp 228 is an LED lamp, an incandescent lamp, or other existing lighting tools. The lighting lamp 228 forms a circuit with the power battery 100 through the light-controlled switch 229, so that the power battery 100 can provide energy for the lighting of the lighting lamp 228 to realize the lighting function of the function expansion conversion device 10, so that the operator can operate the function expansion conversion device 10 through the lighting lamp 228 itself even in the absence of a light source, thereby making the function expansion conversion device 10 more convenient to use and making the power battery 100 more convenient to use.

[0048] In one embodiment, a heat sink 229a is provided inside the second housing 220. The heat sink 229a is electrically connected to the DC conversion circuit board 221 so that the heat sink 229a utilizes the DC power converted by the DC conversion circuit board 221 to operate. In this embodiment, the heat sink 229a is a fan. The provision of the heat sink 229a accelerates the dissipation of heat inside the housing assembly 200, thereby lowering the temperature inside the housing assembly 200. This makes it less likely that the power battery 100 will expand due to heat inside the housing assembly 200, making the structure of the power battery 100 less likely to be damaged, thereby extending the service life of the power battery 100 and reducing the cost of using the power battery 100.

[0049] like Figure 5 As shown, in one embodiment, a discharge male plug 2323 is provided at the bottom of the intermediate body 232 , and a first end of the discharge male plug 2323 is electrically connected to the MPPT circuit board 2331 .

[0050] like Figure 2 As shown, in one embodiment, the shell assembly 200 is formed with a gripping groove 250, so that the operator can better move the shell assembly 200 through the gripping groove 250, so that the position of the shell assembly 200 is more convenient to move, so that the function expansion conversion device 10 can be in a more suitable position, and it is convenient for the solar charging equipment to charge the power battery 100 with the help of the shell assembly 200, so that the charging speed of the power battery 100 is faster, thereby making the use cost of the power battery 100 lower.

[0051] like Figure 3 As shown, in one embodiment, a carrying portion 110 is provided on the top surface of the power battery 100, and a carrying slot 111 is formed in the carrying portion 110, so that an operator can quickly extract the power battery 100 from the housing assembly 200 through the carrying slot 111, so that the power battery 100 is more convenient to move, thereby making the power battery 100 more convenient to use.

[0052] The present invention further provides an electric vehicle, comprising the function expansion conversion device 10 described in any one of the above embodiments.

[0053] Compared with the prior art, the present invention has at least the following advantages:

[0054] 1. Since the DC conversion circuit board 221 is electrically connected to the output end of the power battery 100, the second housing 220 is also provided with a USB output port 223, a cigarette lighter output port 224 and an AC output port 225, and the DC conversion circuit board 221 is also electrically connected to the USB output port 223 and the cigarette lighter output port 224; the inverter circuit board 222 is electrically connected to the output end of the power battery 100, and the inverter circuit board 222 is also electrically connected to the AC output port 225, so that the power battery 100 can convert electric energy into The DC conversion circuit board 221 shunts the converted DC power to the USB output port 223 and the cigarette lighter output port 224, and the inverter circuit board 222 transmits the converted AC power to the AC output port 225, so that the power battery 100 can not only output DC power through the conversion of the DC conversion circuit board 221, but also output AC power through the conversion of the inverter circuit board 222, thereby enabling the power battery 100 to be used as an energy source for small household appliances, diversifying the use of the power battery 100, and making the power battery 100 more convenient to use.

[0055] 2. Since the output end of the solar charging stand 211 is electrically connected to the input end of the power battery 100, the input end of the solar charging stand 211 is used to electrically connect to the solar charging device, so that a loop is formed between the solar charging device and the power battery 100, so that the solar charging device can convert solar energy into electrical energy and store it in the power battery 100, thereby avoiding the problem of energy depletion of the power battery 100 caused by power outages, and the power battery 100 is charged under the continuous conversion of the solar charging device, so that the power battery 100 can be replenished with energy in time, so that the power battery 100 can be used continuously, so that the electric vehicle can be used continuously, and thus the cost of using the power battery 100 is low.

[0056] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

1. A function expansion conversion device, characterized in that: include: Power batteries; as well as A shell assembly, wherein the shell assembly is formed with a gripping groove, and the shell assembly includes a first shell, a second shell, a storage member and a protective plate, the first shell is connected to the second shell to form a accommodating cavity, the storage member is located in the accommodating cavity, the storage member is respectively connected to the first shell and the second shell, the storage member forms a storage cavity, the power battery is placed in the storage cavity, and the power battery is electrically connected to the storage member; the first shell is provided with a solar charging stand, the output end of the solar charging stand is electrically connected to the input end of the power battery, and the input end of the solar charging stand is used to be electrically connected to the solar charging device; the second shell A DC conversion circuit board and an inverter circuit board are provided, the DC conversion circuit board and the inverter circuit board are spaced apart, both the DC conversion circuit board and the inverter circuit board are located in the accommodating cavity, the DC conversion circuit board is connected to the inner wall of the accommodating cavity, the DC conversion circuit board is electrically connected to the output end of the power battery, the second shell is further provided with a USB output port, a cigarette lighter output port and an AC output port, the DC conversion circuit board is further electrically connected to the USB output port and the cigarette lighter output port, respectively; the inverter circuit board is electrically connected to the output end of the power battery, and the inverter circuit board is also electrically connected to the AC output port; The storage member includes an upper cover, an intermediate body, and a lower cover, the intermediate body being connected to the upper cover and the lower cover respectively, the upper cover being formed with a first through hole, the storage cavity being formed in the intermediate body, the first through hole being communicated with the storage cavity, the upper cover being connected to the first shell and the second shell respectively, the intermediate body being located in the accommodating cavity, the lower cover being connected to the first shell and the second shell respectively on a side facing away from the upper cover; the gripping groove being formed in the upper cover; The protective plate is located in the accommodating cavity and is connected to the second shell so that the accommodating cavity is divided into a first cavity and a second cavity. The storage component is located in the first cavity, and the DC conversion circuit board and the inverter circuit board are both located in the second cavity. The inverter circuit board is connected to the protective plate; the second shell is formed with ventilation holes, which are connected to the accommodating cavity; a heat sink is provided inside the second shell, and the heat sink is electrically connected to the DC conversion circuit board.

2. The function expansion conversion device according to claim 1, characterized in that: The upper cover includes a display panel and a control circuit board. The display panel is arranged on the top surface of the upper cover. The display panel is electrically connected to the control circuit board. The control circuit board is electrically connected to the output end of the power battery.

3. The function expansion conversion device according to claim 2, characterized in that: A travel switch is provided at the bottom of the intermediate body, and one end of the travel switch is electrically connected to the control circuit board.

4. The function expansion conversion device according to claim 2, characterized in that: The lower cover includes an MPPT circuit board, which is electrically connected to the solar charging stand and is also electrically connected to the input end of the power battery.

5. The function expansion conversion device according to claim 4, characterized in that: The first shell is also provided with a first switch and a second switch, the first end of the first switch is electrically connected to the output end of the power battery, and the second end of the first switch is electrically connected to the control circuit board, the DC conversion circuit board and the inverter circuit board respectively; the first end of the second switch is electrically connected to the input end of the power battery, and the second end of the second switch is electrically connected to the MPPT circuit board.

6. The function expansion conversion device according to claim 5, characterized in that: The first shell is also provided with an AC charging stand, which is spaced apart from the solar charging stand. The second end of the second switch is electrically connected to the output end of the AC charging stand, and the input end of the AC charging stand is used to be electrically connected to an external power supply.

7. An electric vehicle, characterized in that: A function expansion conversion device comprising any one of claims 1 to 6.

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