Current conversion device and power supply equipment

Abstract

The invention relates to power equipment, in particular to a current conversion device and power supply equipment, which comprises a plug and a conversion socket, the conversion socket is provided with a plurality of contact elastic sheets, a plurality of jacks and a plurality of first pins, and the first pins are used for being inserted into a first power socket. The plurality of contact elastic sheets and the plurality of jacks are arranged in a one-to-one correspondence manner, each contact elastic sheet directly faces the corresponding jack, the plurality of contact elastic sheets and the plurality of first pins are arranged in a one-to-one correspondence manner, and each contact elastic sheet is connected with the corresponding first pin; the plug is provided with a plurality of second pins, the plurality of contact elastic sheets and the plurality of second pins are arranged in one-to-one correspondence, and the second pins can be selectively inserted into the jacks of the conversion socket or the second power socket; when the second pins are inserted into the jacks of the conversion socket, the second pins abut against the corresponding contact elastic sheets. The power socket can adapt to two different power sockets.

Description

Technical Field

[0001] The present invention relates to the technical field of power supply, and in particular to a current conversion device and power supply equipment. Background Art

[0002] Currently, some high-power electrical appliances (such as air conditioners, electric water heaters, charging guns, etc.) require a power socket of at least 16A to work properly.

[0003] Taking the charging gun as an example, some old communities or public facilities only provide 10A power sockets, and the charging guns of new energy vehicles are compatible with 16A sockets and cannot be directly plugged into 10A power sockets. The existing high-power electrical appliances have the disadvantage of a narrow range of compatible power sockets. Summary of the invention

[0004] The technical problem to be solved by the present invention is: in view of the problem that the range of power sockets adapted to high-power electrical appliances in the prior art is narrow, therefore, a current conversion device and a power supply device are provided.

[0005] In order to solve the above technical problems, on the one hand, an embodiment of the present invention provides a current conversion device, including a plug and a conversion socket, wherein the conversion socket is provided with a plurality of contact springs, a plurality of sockets and a plurality of first pins, wherein the first pins are used to be inserted into a first power socket, and the plurality of contact springs are arranged in a one-to-one correspondence with the plurality of sockets, each of the contact springs is directly opposite to the socket corresponding thereto, the plurality of contact springs are arranged in a one-to-one correspondence with the plurality of first pins, and each of the contact springs is connected to the first pin corresponding thereto; The plug has a plurality of second pins, the plurality of contact springs are arranged in one-to-one correspondence with the plurality of second pins, and the second pins can be selectively inserted into the socket of the conversion socket or the second power socket; When the second plug pin is inserted into the socket of the conversion socket, the second plug pin abuts against the corresponding contact spring sheet.

[0006] Optionally, the plug includes an outer shell, a locking buckle, a reset member and an unlocking member, and the conversion socket is provided with a locking groove; the plug is plugged into the conversion socket along a first direction; The locking buckle, the resetting member and the unlocking member are all arranged in the outer shell; The outer shell is provided with a through hole, one end of the locking buckle is connected to the unlocking member, and the other end of the locking buckle can extend from the through hole to be suitable for buckling with the locking groove; The unlocking member is slidably connected to the outer shell along the second direction to drive the locking buckle to extend outward from the through hole or retract into the through hole along the second direction. The reset member is arranged between the outer shell and the unlocking member. The reset member can make the unlocking member have a tendency to drive the locking buckle to extend out of the through hole. The reset member is used to maintain the locking buckle extending out of the through hole and connected with the buckle of the locking groove; The unlocking member is used to drive the locking buckle to disengage from the locking groove along the second direction under the action of external force, so as to release the locking connection between the locking buckle and the locking groove; there is a non-zero angle between the first direction and the second direction.

[0007] Optionally, the unlocking member includes a button, a button hole is provided on the outer shell, and the button is arranged in the button hole; The reset member includes a reset spring and a reset base, the reset base is connected to the outer shell, the reset base is opposite to the button hole, the reset base and the button are spaced apart, the reset spring is arranged between the button and the reset base, the reset spring is retracted along the second direction, and the reset spring is a pressure spring.

[0008] Optionally, the outer shell includes an outer shell and an inner shell, and the button hole is arranged on the outer shell; The inner shell is arranged in the outer shell, one end of the inner shell close to the socket protrudes from the outer shell, the through hole is arranged on one end of the inner shell close to the socket, the inner shell is provided with a clamping hole and a plurality of guide holes, the clamping hole and the guide holes are both directly opposite to the button hole, the button is provided with a buckle and a plurality of guide columns, the buckle passes through the button hole and the clamping hole in sequence and is matched with the inner wall of the inner shell for blocking; The plurality of guide posts correspond to the plurality of guide holes one by one, and each guide post passes through the corresponding guide hole.

[0009] Optionally, the socket comprises a bottom shell and a top cover, the bottom shell and the top cover are detachably connected, the bottom shell and the bottom shell enclose a closed cavity, the top cover is provided with a groove sunken toward the cavity, and the outer surface of the side wall of the groove is in contact with the inner surface of the side wall of the bottom shell; The socket is inserted into the groove, and the insertion hole is arranged on the bottom wall of the groove.

[0010] Optionally, an anti-fool column is provided on the top cover, and the anti-fool column protrudes from the bottom wall of the groove.

[0011] Optionally, a communication pin is provided on the top cover, the communication pin protrudes from the bottom wall of the groove, and the communication pin constitutes the fool-proof column; The socket is provided with a communication connector, and the communication connector is connected to the communication pin.

[0012] Optionally, a first communication module is provided on the conversion socket, the first communication module has a first connection end, the first connection end is electrically connected to the communication pin, and a second communication module is provided on the plug, the second communication module has a second connection end and a third connection end, the second connection end is used to connect to the charging system signal of the charging device, the third connection end is electrically connected to the communication connector, and when the plug is plugged into the socket, the communication connector and the communication pin are connected to connect the first communication module and the second communication module.

[0013] Optionally, a temperature monitoring module is provided in the plug, the temperature monitoring module is connected to the charging system signal of the charging device, and the temperature monitoring module is used to monitor the temperature in the plug.

[0014] On the other hand, the present invention also discloses a power supply device, including a power supply terminal, a wire and the above-mentioned current conversion device; the power supply terminal is connected to the plug through the wire, the power supply terminal is used to be electrically connected to the device to be powered, and a power supply system is arranged in the power supply terminal.

[0015] The embodiment of the present invention provides a current conversion device and a power supply device, wherein the first power socket is a 10A power socket, the second power socket is a 16A power socket, the second pins are three, and the three second pins constitute a 16A pin so as to be inserted into the second power socket; the first pins are three, and the three first pins constitute a 10A pin so as to be inserted into the first power socket. When only the plug is used, the first plug can be directly inserted into the second power socket, so that a current of 16A passes through the first plug and the second plug. When the plug and the conversion socket are used in combination, the conversion socket is plugged into the 10A first power socket, and a current of 10A passes between the plug and the conversion socket. It can be seen that the present invention can be applied to two different power sockets, and the scope of application is wider than that of the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative labor.

[0017] Figure 1 is an overall diagram of a current conversion device in one embodiment of the present invention; Figure 2is an exploded view of a plug and a conversion socket of a current conversion device in one embodiment of the present invention; Figure 3 is an exploded view of a conversion socket of a current conversion device in one embodiment of the present invention; Figure 4 is an exploded view of a plug of a current conversion device according to an embodiment of the present invention; Figure 5 is a partial cross-sectional view of a plug of a current conversion device according to an embodiment of the present invention; Figure 6 is a connection diagram of a temperature monitoring module of a power supply device in one embodiment of the present invention; Figure 7 It is an application logic diagram of a power supply device in one embodiment of the present invention.

[0018] Figure numerals: 1. conversion socket; 11. bottom shell; 12. top cover; 121. groove; 122. locking groove; 123. jack; 13. first pin; 2. plug; 21. outer shell; 211. button hole; 22. inner shell; 221. guide hole; 222. card hole; 223. through hole; 23. button; 231. guide column; 232. buckle; 24. reset member; 25. reset base; 251. accommodating chamber; 252. guide rod; 26. annular shell; 27. top cover shell; 28. locking buckle; 29. ​​second pin; 3. communication connector; 4. communication pin; 5. wire. DETAILED DESCRIPTION

[0019] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0020] In the description of the present invention, it should be understood that the terms "longitudinal", "radial", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] Reference Figure 1-Figure 7 An embodiment of the present invention provides a current conversion device, including a plug 2 and a conversion socket 1, wherein the conversion socket 1 is provided with a plurality of contact springs, a plurality of sockets 123 and a plurality of first pins 13, wherein the plurality of contact springs are arranged in a one-to-one correspondence with the plurality of sockets 123, and the plurality of contact springs are arranged in a one-to-one correspondence with the plurality of first pins 13, wherein the first pins 13 are used to be inserted into a first power socket, wherein each of the contact springs is directly opposite to each of the sockets 123, and each of the contact springs is connected to each of the first pins 13; The plug 2 has a plurality of second pins 29, and the plurality of contact springs are arranged one by one with the plurality of second pins 29. Each second pin 29 can be inserted into a socket 123 and abut against the contact spring. The plug 2 is selectively inserted into the socket 123 of the conversion socket 1 or the second power socket through the second pins 29. When the second pin is inserted into the socket of the conversion socket, the second pin abuts against the corresponding contact spring.

[0023] The first power socket in this embodiment is a 10A power socket, and the second power socket is a 16A power socket. In this embodiment, there are three second pins 29, and the three second pins 29 constitute a 16A pin so that they can be inserted into the second power socket; there are three first pins 13, and the three first pins 13 constitute a 10A pin so that they can be inserted into the first power socket.

[0024] When only the first plug 2 is used, the first plug 2 can be directly plugged into the second power socket, so that a current of 16 A passes through the first plug 2 and the second plug 2 .

[0025] When the plug 2 and the conversion socket 1 are used together, the conversion socket 1 is plugged into a 10A first power socket, and a current of 10A flows between the plug 2 and the conversion socket 1 .

[0026] Reference Figures 2 to 5As an example, the plug 2 includes a housing 21, a locking buckle 28, a reset member 24 and an unlocking member. The locking buckle 28, the reset member 24 and the unlocking member are each provided with two, wherein one locking buckle 28, one reset member 24 and one unlocking member form a group. A locking groove 122 is provided on the conversion socket 1, wherein two locking grooves 122 are provided, and the two locking grooves 122 are provided at opposite sides of the conversion socket 1. The plug 2 is plugged into the conversion socket 1 along a first direction. When the plug 2 is plugged into the conversion socket 1, one locking buckle 28 is snap-connected with the locking groove 122, and the other locking buckle 28 is snap-connected with the other locking groove 122. The locking buckle 28, the reset member 24 and the unlocking member are all provided in the housing 21.

[0027] The housing 21 is provided with two through holes 223, each locking buckle 28 corresponds to a through hole 223, one end of the locking buckle 28 is connected to the unlocking member, and the other end of the locking buckle 28 can extend from the corresponding through hole 223 to be suitable for snap connection with the corresponding locking groove 122. When the plug 2 is plugged into the conversion socket 1, each through hole 223 and each locking groove 122 are directly opposite, and the locking buckle 28 extends outward from the through hole 223 and is inserted into the locking groove 122. At this time, the locking buckle 28 and the locking groove 122 are in a snap connection state, so that the plug 2 and the conversion socket 1 maintain a temporary stable connection.

[0028] The unlocking member is slidably connected to the housing 21 body along the second direction to drive the locking buckle 28 to extend outward from the through hole 223 or to retract into the through hole 223 along the second direction. The reset member 24 is arranged between the housing 21 body and the unlocking member. The reset member 24 can make the unlocking member have a tendency to drive the locking buckle 28 to extend out of the through hole 223. The reset member 24 is used to maintain the locking buckle 28 extending out of the through hole 223 and being in a snap connection with the locking groove 122. In this embodiment, the reset member 24 is a pressure spring. The reset member 24 is used to apply a force away from the reset base 25 along the second direction to the unlocking member, so that the unlocking member drives the locking buckle 28 to always face the housing 21 body. When the plug 2 is plugged into the conversion socket 1, the locking buckle 28 and the locking groove 122 are in a snap connection. At this time, the reset member 24 applies a force close to the locking groove 122 to the locking buckle 28 along the second direction, so that the locking buckle 28 is continuously snapped into the locking groove 122 without the action of external force.

[0029] The unlocking member is used to drive the locking buckle 28 to disengage from the locking groove 122 along the second direction under the action of external force to release the locking connection between the locking buckle 28 and the locking groove 122; there is a non-zero angle between the first direction and the second direction.

[0030] When the plug 2 and the conversion socket 1 are used together, the plug 2 is inserted into the conversion socket 1, and the locking buckle 28 on the plug 2 and the locking groove 122 on the socket are engaged with each other by the buckle 232. In the absence of external force, the plug 2 and the conversion socket 1 can be locked under the action of the locking buckle 28 and the locking groove 122.

[0031] After use, external force acts on the unlocking member, so that the unlocking member is subjected to a force opposite to the reset member 24. The unlocking member overcomes the force of the reset member 24, and the unlocking member drives the locking buckle 28 to disengage from the locking groove 122 along the second direction in a direction away from the locking groove 122. At this time, the person pulls out the plug 2 along the first direction, so that the plug 2 and the conversion socket 1 can be separated from each other.

[0032] In this embodiment, the unlocking members are arranged on opposite sides of the plug 2. When pressing the unlocking members, one hand can simultaneously apply force to the two unlocking members to move closer to each other, so that the two unlocking members drive the corresponding locking buckles 28 to move toward the middle of the plug 2.

[0033] Reference Figure 4 and Figure 5 As an example, the unlocking member includes a button 23, a button hole 211 is provided on the housing 21, and the button 23 is arranged in the button hole 211; The reset member 24 includes a reset spring and a reset base 25. The reset base 25 is connected to the housing 21. The reset base 25 is opposite to the button hole 211. The reset base 25 and the button 23 are spaced apart. The reset spring is arranged between the button 23 and the reset base 25. The reset spring is retracted and expanded along the second direction. The reset spring is a pressure spring.

[0034] The reset base 25 in this embodiment is detachably fixed to the housing 21, and is provided with an accommodating cavity 251 for accommodating the reset member 24. The accommodating cavity 251 is used to accommodate part of the reset member 24 to limit the extension and retraction direction of the reset member 24. The accommodating cavity 251 is formed by the bottom wall of the reset base 25 being recessed toward the center of the plug 2.

[0035] Reference Figure 4 and Figure 5As an example, the shell 21 includes an outer shell 21 and an inner shell 22, and the button hole 211 is arranged on the outer shell 21. The inner shell 22 is arranged in the outer shell 21, and one end of the inner shell 22 close to the socket protrudes from the outer shell 21, and the through hole 223 is arranged on one end of the inner shell 22 close to the socket, and the inner shell 22 is provided with a clamping hole 222 and a plurality of guide holes 221, and the clamping hole 222 and the guide holes 221 are both directly facing the button hole 211, and the button 23 is provided with a buckle 232 and a plurality of guide posts 231, and the buckle 232 passes through the button hole 211 and the clamping hole 222 in sequence and cooperates with the inner wall of the inner shell 22; In this embodiment, the guide column 231 and the reset member 24 are arranged on both sides of the locking buckle 28 along the second direction, and the plurality of guide columns 231 are parallel, and the plurality of guide columns 231 correspond to the plurality of guide holes 221 one by one, and each of the guide columns 231 is penetrated by the guide hole 221 corresponding thereto, and one end of each guide column 231 close to the locking buckle 28 abuts against the locking buckle 28, and the button 23 is connected to the locking buckle 28 through the guide column 231, and the button 23 drives the guide column 231 to move toward the inside of the plug 2, and the guide column 231 drives the locking buckle 28 to move toward the inside of the plug 2, so that the locking buckle 28 disengages from the locking groove 122, and when there is no external force, the reset member 24 drives the locking buckle 28 to fit into the locking groove 122, and the unlocking buckle moves toward the outside of the socket, driving the button 23 to move away from the center of the socket.

[0036] In this embodiment, the inner shell 22 further includes an annular shell 26 and a top cover 12 shell. The annular shell 26 is arranged along the circumference of the outer shell 21. The annular shell 26 and the outer shell 21 are fixedly connected. The annular shell 26 has a one-way opening. The opening of the annular shell 26 is closed by the outer shell 21. The end of the annular shell 26 away from the opening thereof extends out from the outer shell 21. The second pin 29 is arranged on the side of the annular shell 26 away from the opening thereof. The second pin 29 is arranged on the end of the annular shell 26 extending out of the outer shell 21. The top cover 12 shell is arranged between the outer shell 21 and the annular shell 26. The top cover 12 shell is located inside the annular shell 26. The top cover 12 shell and the annular shell 26 are snap-connected. The top cover 12 shell has a reset cavity. The reset base 25 is arranged in the reset cavity of the top cover 12 shell. The reset base 25 and the top cover 12 shell are connected. A displacement cavity is provided in the reset base 25, and the reset member 24 is provided in the displacement cavity. The reset member 24 moves along the second direction in the displacement cavity. A plurality of guide rods 252 are fixed on the reset base 25, and the plurality of guide rods 252 extend along the second direction and are spaced apart from each other. A plurality of guide holes are provided on the locking buckle 28, and each guide rod 252 is inserted into each guide hole. The cooperation between the guide rod 252 and the guide hole can limit the stable movement of the locking buckle 28 along the second direction.

[0037] When the button 23 is pressed, the button 23 moves toward the center of the plug 2 along the second direction, compressing the reset member 24 and driving the locking buckle 28 to retract into the through hole 223, and the locking buckle 28 is now disengaged from the locking groove 122. When the button 23 is not pressed or the finger is removed from the button 23, the reset member 24 drives the locking buckle 28 to move toward the outside of the plug 2 along the second direction under the elastic action of the reset member 24, so that one end of the locking buckle 28 extends out of the through hole 223.

[0038] There are two buckles 232 on the button 23, which are arranged on opposite sides of the button 23. After the button 23 is installed in the key hole, the buckle 232 enters the clamping hole 222 from the button hole 211. One end of the buckle 232 that penetrates into the clamping hole 222 can be engaged with the inner wall of the inner shell 22 to prevent the button 23 from falling off the inner shell 22. The guide column 231 extends along the second direction, and the guide column 231 reciprocates in the guide hole 221 to limit the moving track of the button 23.

[0039] As an example, the socket includes a bottom shell 11 and a top cover 12, the bottom shell 11 and the top cover 12 are detachably connected, the bottom shell 11 and the bottom shell 11 enclose a closed cavity, the contact spring is arranged in the cavity, a plurality of jacks 123 are arranged on the bottom wall of the groove 121, a part of the first pin 13 is inserted into and fixed in the inner cavity, the top cover 12 is provided with a groove 121 recessed toward the cavity, the outer surface of the side wall of the groove 121 is fitted with the inner surface of the side wall of the bottom shell 11. The socket is inserted into the groove 121, and the jack 123 is arranged on the bottom wall of the groove 121. The side wall of the groove 121 and the side wall of the socket are arranged at intervals, or the side wall of the groove 121 and the side wall of the socket are fitted.

[0040] In common sockets, the side of the socket that contacts the plug 2 is flat, and the plug 2 is directly inserted into the socket. In this embodiment, the side of the socket that contacts the plug 2 is recessed inward to form a groove 121, and a portion of the plug 2 is inserted into the groove 121. In this embodiment, the shape and size of the groove 121 can be specifically designed according to the shape of the outer wall of the plug 2 and the interval between the outer wall of the plug 2 and the side wall of the groove 121, so that only the matching plug 2 can be inserted into the groove 121, and other sizes of external plugs 2 cannot be inserted into the groove 121. For example, through the interval between the outer wall of the plug 2 and the side wall of the groove 121, when the plug 2 in this embodiment is inserted into the conversion socket 1, the end of the wire 5 connected to the plug 2 can be placed in the groove 121, and the plug 2 of other external device models cannot be inserted into the groove 121 due to the connection end of the wire 5 and the plug 2, so that the conversion socket 1 can only be used with the matching plug 2.

[0041] Reference Figure 2and Figure 3 As an example, the top cover 12 is provided with an anti-fool column, and the anti-fool column protrudes from the bottom wall of the groove 121. The anti-fool column mainly prevents other sockets from being inserted into the groove 121, and provides a double guarantee for the matching use of the conversion socket 1 and the plug 2.

[0042] Specifically, the top cover 12 is provided with a communication pin 4, the communication pin 4 protrudes from the bottom wall of the groove 121, and the communication pin 4 constitutes the foolproof column. The socket is provided with a communication connector 3, and the communication connector 3 is connected to the communication pin 4.

[0043] The communication pin 4 in this embodiment has a certain hardness and cannot be retracted into the socket or deformed. The plug 2 is provided with a docking hole, the communication pin 4 is inserted into the docking hole, and the communication connector 3 is arranged in the communication hole, so that it can only be used in conjunction with the plug 2 in this embodiment, and the communication pin 4 abuts against the communication connector 3, and the two abutted forms an electrical connection, Reference Figure 6 and Figure 7 As an example, a first communication module is provided on the conversion socket 1, and the first communication module has a first connection end, and the first connection end is electrically connected to the communication pin 4. A second communication module is provided on the plug 2, and the second communication module has a second connection end and a third connection end, and the second connection end is used to connect the charging system signal of the charging device, and the third connection end is electrically connected to the communication connector 3. When the plug 2 is plugged into the socket, the communication connector 3 and the communication pin 4 are connected to connect the first communication module and the second communication module.

[0044] The communication pin 4 is electrically connected to the communication connector 3. When the communication pin 4 is electrically connected to the communication connector 3, a signal connection is achieved between the first communication module and the second communication module, and the two send matching signals to the outside through the second connection end.

[0045] As an example, a temperature monitoring module is provided in the plug 2, the temperature monitoring module is connected to the charging system signal of the charging device, and the temperature monitoring module is used to monitor the temperature in the plug 2. The temperature detection module is mainly used to detect whether the temperature in the plug 2 is abnormal, and send a signal to the outside if there is an abnormality.

[0046] Reference Figure 6 In one embodiment, the present invention further discloses a power supply device, comprising a power supply terminal, a wire 5 and the above-mentioned current conversion device; the power supply terminal is connected to the plug 2 through the wire 5, the power supply terminal is used to be electrically connected to the device to be powered, and a power supply system is arranged in the power supply terminal.

[0047] The device to be powered in this embodiment may be a high-power electrical appliance such as an electric rice cooker, an air conditioner, a refrigerator, etc. in the field of household appliances, and may be an electrical appliance adapted to a current of 16A in the industrial field.

[0048] In this embodiment, the power supply system is an MCU processor, which is signal-connected to the temperature detection module and is also signal-connected to the second communication module. When signal-connected to the second communication module, the MCU processor can be connected through one end of the wire 5, and the other end of the wire 5 is connected to the second communication module.

[0049] Reference Figure 6 and Figure 7 In one embodiment, the power supply device is specifically a charging gun. This embodiment is described in detail with the charging gun. The charging gun is a portable charging gun. The charging gun includes a gun body, a wire 5 and a plug 2. The plug 2 and the gun body are connected by the wire 5. The gun body constitutes the above-mentioned power supply terminal. A charging system is arranged in the gun body. The charging system constitutes the above-mentioned power supply system. The charging system is an MCU processor. The charging system is connected to the temperature detection module signal signal, and is also connected to the second communication module signal signal. When the second communication module is connected to the signal, the MCU processor can be connected through one end of the wire 5, and the other end of the wire 5 is connected to the second communication module.

[0050] When the plug 2 is inserted into the conversion socket 1, the first communication module and the second through hole 223 module form a signal connection through the electrical connection between the communication pin 4 and the communication connector 3. At this time, the second communication module sends a matching signal to the charging system, and the charging system adjusts the PWM duty cycle, thereby adjusting the output current of the charging gun to 10A and starting charging.

[0051] When plug 2 is used alone, that is, when plug 2 is inserted into the second power socket (a 16A ordinary socket), the charging system does not receive the signal sent after the first communication module and the second communication module are matched. The charging system adjusts the PWM duty cycle, thereby adjusting the output current to 16A and starts to supply power to the outside.

[0052] Regardless of the above charging mode, the temperature inside the plug 2 is monitored by the temperature monitoring module throughout the whole process. When the plug 2 is used alone, when the temperature monitoring module detects that the temperature inside the plug 2 exceeds the first preset temperature, it sends a signal to the charging system, and the charging system reduces the current passing through the plug 2 to 10A. When the temperature monitoring module detects that the temperature inside the plug 2 exceeds the second preset temperature, the charging system disconnects the charging.

[0053] Reference Figure 6 and Figure 7In one embodiment, this embodiment further provides a control method, which is applicable to the power supply device of the above embodiment. The charging system determines whether the plug 2 is matched with the conversion socket 1 or the plug 2 is connected to the second power socket according to whether the matching signal of the first communication module and the second communication module is received. If the charging system receives the matching signal sent by the second communication module, the charging system adjusts the PWM duty cycle, adjusts the output current of the charging gun to 10A, and the charging gun starts charging; Otherwise, if the charging system does not receive the matching signal sent by the second communication module, the charging system adjusts the PWM duty cycle, thereby adjusting the output current of the charging gun to 16A and starts to supply power to the outside.

[0054] During the matching use of the plug 2 and the conversion socket 1, the temperature monitoring module detects that the temperature inside the plug 2 exceeds the second preset temperature, and sends a signal to the charging system, and the charging system disconnects the charging of the charging gun.

[0055] When the plug 2 and the second power socket are connected for charging, the temperature monitoring module detects that the temperature inside the plug 2 exceeds the first preset temperature, and sends a signal to the charging system. The charging system adjusts the PWM duty cycle and adjusts the output current of the charging gun to 10 A. When the temperature monitoring module detects that the temperature inside the plug 2 exceeds the first preset temperature, it sends a signal to the charging system, and the charging system disconnects the charging of the charging gun.

[0056] In old residential areas or areas where there are insufficient public charging piles, there are problems such as insufficient number of charging piles, difficulty in installing charging piles, and charging pile occupation. Conventional charging guns cannot be inserted into the national standard 10A power socket (the first power socket). Currently, some new energy vehicle owners use a 10A to 16A converter for charging. This charging method causes the household circuit to remain in a high-load state for a long time during the charging hours, and it is also easy to cause the metal shrapnel and wires in the first power socket to remain heated for a long time, thus posing a safety hazard.

[0057] In this embodiment, when the plug 2 and the conversion socket 1 are used in combination, the first communication module and the second communication module are connected by signal, and the second communication module sends a matching signal to the charging system. The charging system controls the current passing through the plug 2 and the conversion socket 1 to always be 10A, which is the same as a household 10A circuit and does not impose a burden on household power sockets and household circuits.

[0058] When only plug 2 is used, that is, plug 2 is directly inserted into a 16A power socket or a 10A to 16A converter (second power socket), the current passing through plug 2 is 16A, but the temperature monitoring module in plug 2 monitors the temperature in plug 2 in real time. When the temperature in plug 2 exceeds the first preset temperature, the charging system adjusts the current passing through plug 2 and controls the current passing through plug 2 to 10A, thereby reducing the negative impact on household circuits and household power sockets while maintaining the charging state. When the temperature in plug 2 exceeds the second preset temperature, the charging system disconnects the charging state of the charging gun.

[0059] The embodiments described above are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be included in the protection scope of the present invention.

Claims

1. A current conversion device, characterized in that: It comprises a plug and a conversion socket, wherein the conversion socket is provided with a plurality of contact springs, a plurality of sockets and a plurality of first pins, wherein the first pins are used to be inserted into a first power socket, the plurality of contact springs are arranged in a one-to-one correspondence with the plurality of sockets, each of the contact springs is directly opposite to the socket corresponding thereto, the plurality of contact springs are arranged in a one-to-one correspondence with the plurality of first pins, and each of the contact springs is connected to the first pin corresponding thereto; The plug has a plurality of second pins, the plurality of contact springs are arranged in one-to-one correspondence with the plurality of second pins, and the second pins can be selectively inserted into the socket of the conversion socket or the second power socket; When the second plug pin is inserted into the socket of the conversion socket, the second plug pin abuts against the corresponding contact spring sheet.

2. The current conversion device according to claim 1, characterized in that: The plug comprises an outer shell, a locking buckle, a reset member and an unlocking member, and the conversion socket is provided with a locking groove; the plug is plugged into the conversion socket along a first direction; The locking buckle, the resetting member and the unlocking member are all arranged in the outer shell; The outer shell is provided with a through hole, one end of the locking buckle is connected to the unlocking member, and the other end of the locking buckle can extend from the through hole to be suitable for buckling with the locking groove; The unlocking member is slidably connected to the outer shell along the second direction to drive the locking buckle to extend outward from the through hole or retract into the through hole along the second direction. The reset member is arranged between the outer shell and the unlocking member. The reset member can make the unlocking member have a tendency to drive the locking buckle to extend out of the through hole. The reset member is used to maintain the locking buckle extending out of the through hole and connected with the buckle of the locking groove; The unlocking member is used to drive the locking buckle to disengage from the locking groove along the second direction under the action of external force, so as to release the locking connection between the locking buckle and the locking groove; there is a non-zero angle between the first direction and the second direction.

3. The current conversion device according to claim 2, characterized in that: The unlocking member comprises a button, a button hole is provided on the outer shell, and the button is arranged in the button hole; The reset member includes a reset spring and a reset base, the reset base is connected to the outer shell, the reset base is opposite to the button hole, the reset base and the button are spaced apart, the reset spring is arranged between the button and the reset base, the reset spring is retracted along the second direction, and the reset spring is a pressure spring.

4. The current conversion device according to claim 3, characterized in that: The outer shell comprises an outer shell and an inner shell, and the button hole is arranged on the outer shell; The inner shell is arranged in the outer shell, one end of the inner shell close to the socket protrudes from the outer shell, the through hole is arranged on one end of the inner shell close to the socket, the inner shell is provided with a clamping hole and a plurality of guide holes, the clamping hole and the guide holes are both directly opposite to the button hole, the button is provided with a buckle and a plurality of guide columns, the buckle passes through the button hole and the clamping hole in sequence and is matched with the inner wall of the inner shell for blocking; The plurality of guide posts correspond to the plurality of guide holes one by one, and each guide post passes through the corresponding guide hole.

5. The current conversion device according to claim 1, characterized in that: The socket comprises a bottom shell and a top cover, the bottom shell and the top cover are detachably connected, the bottom shell and the bottom shell enclose a closed cavity, the top cover is provided with a groove sunken toward the cavity, the outer surface of the side wall of the groove is in contact with the inner surface of the side wall of the bottom shell; The socket is inserted into the groove, and the insertion hole is arranged on the bottom wall of the groove.

6. The current conversion device according to claim 5, characterized in that: An anti-fool column is arranged on the top cover, and the anti-fool column protrudes from the bottom wall of the groove.

7. The current conversion device according to claim 6, characterized in that: The top cover is provided with a communication pin, the communication pin protrudes from the bottom wall of the groove, and the communication pin constitutes the fool-proof column; The socket is provided with a communication connector, and the communication connector is connected to the communication pin.

8. The current conversion device according to claim 7, characterized in that: The conversion socket is provided with a first communication module, the first communication module has a first connection end, and the first connection end is electrically connected to the communication pin. The plug is provided with a second communication module, the second communication module has a second connection end and a third connection end, the second connection end is used for connecting with the charging system signal of the charging device, and the third connection end is electrically connected to the communication connector. When the plug is plugged into the socket, the communication connector and the communication pin are connected to connect the first communication module and the second communication module.

9. The current conversion device according to claim 1, characterized in that: A temperature monitoring module is provided in the plug, the temperature monitoring module is connected to the charging system signal of the charging device, and the temperature monitoring module is used to monitor the temperature in the plug.

10. A power supply device, characterized in that: It comprises a power supply terminal, a wire and a current conversion device as described in any one of claims 1-9; the power supply terminal is connected to the plug through the wire, the power supply terminal is used to be electrically connected to the device to be powered, and a power supply system is arranged in the power supply terminal.

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