CN216545772U

CN216545772U - Drawer type power converter module and variable-capacity charging pile

Info

Publication number: CN216545772U
Application number: CN202122595838.8U
Authority: CN
Inventors: 冯颖盈; 姚顺; 徐金柱; 罗耀文; 王虎
Original assignee: Shenzhen Vmax Power Co Ltd
Current assignee: Shenzhen Vmax Power Co Ltd
Priority date: 2021-10-27
Filing date: 2021-10-27
Publication date: 2022-05-17
Anticipated expiration: 2031-10-27

Abstract

The utility model discloses a drawer type power converter module and a variable capacity charging pile, wherein the drawer type power converter module comprises a cuboid-shaped shell, a circuit board and a cooling device, wherein the circuit board and the cooling device are installed inside the shell component; the handle is used for pulling the drawer type power converter module; the communication socket is used for communicating with the circuit board; the hot plug power terminal is electrically connected with the circuit board and comprises 4 alternating current input terminals and 2 direct current output terminals; the utility model adopts a modular design, the appearance is like a drawer, the power transmission plug is arranged on the back of the drawer, and hot plugging can be realized; when the power converter breaks down or is damaged, the power converter can be replaced quickly, power supply can be recovered as quickly as possible, and power utilization guarantee is effectively improved; fill electric pile capacity simultaneously and can expand as required, bring very big facility for design, purchase and use.

Description

Drawer type power converter module and variable-capacity charging pile

Technical Field

The utility model relates to the field of automobile charging and voltage conversion, in particular to a drawer type power converter module and a variable-capacity charging pile.

Background

With the requirements of energy conservation and emission reduction and air pollution control, new energy automobiles are gradually commercialized in the market, and electric automobiles are more the main force of the new energy automobiles. Fill electric pile is a key ring that electric automobile popularized, fills electric pile for electric automobile benefit electricity, and its effect is equivalent to present fuel car's filling station, and along with the user experiences the requirement to each link of electric automobile more and more high, charge time is shorter and more, and the requirement to the charging power who fills electric pile is higher and more high, and the fault rate to filling electric pile requires more and more lowly, and charging source module is the important component part of filling electric pile. The charging power supply module is crucial to charging piles.

At present, the charging source module that has now adopts the forced air cooling mostly, because it all is installed in the open air to fill electric pile, the forced air cooling can bring a large amount of dusts to pile up in the charging source module, and the radiating effect of forced air cooling is not good, lead to the life-span and the trouble of charging source module to be high, this charging source module adopts the coolant liquid heat dissipation, there is the heat dissipation water course in the charging source module, the cooling liquid cooling is taken away the power device's of charging source module heat that can be fine through flowing in the heat dissipation water course, and the protection that IP67 can be accomplished in charging source module complete machine design optimization.

In some special situations, such as when the power converter fails or is damaged, and needs to be replaced quickly, the power converter needs to be modularized and replaced quickly when the power converter is put into operation immediately.

Therefore, it is an urgent technical problem to be solved in the art to design a drawer type power converter module.

SUMMERY OF THE UTILITY MODEL

In order to solve the defects in the prior art, the utility model provides a drawer type power converter module and a variable-capacity charging pile.

The technical scheme adopted by the utility model is to design a drawer type power converter module, which comprises a cuboid shell, a circuit board and a cooling device, wherein the circuit board and the cooling device are installed inside the shell component; the handle is used for pulling the drawer type power converter module; the communication socket is used for communicating with the circuit board; the hot plug power terminal is electrically connected with the circuit board and comprises 4 alternating current input terminals and 2 direct current output terminals.

The cooling device adopts a water cooling device which comprises a water inlet and a water outlet which are arranged on the front side of the shell, and a cooling water channel which is arranged in the shell and is connected with the water inlet and the water outlet.

The circuit board comprises an upper circuit board and a lower circuit board, the upper circuit board is arranged above the cooling water channel, and a heating element in the upper circuit board extends downwards to be tightly attached to the cooling water channel for heat dissipation; the lower circuit board is arranged below the cooling water channel, and the heating element extends upwards to be attached to the cooling water channel for heat dissipation.

The shell comprises an upper cover plate, a shell and a lower cover plate which are overlapped from top to bottom, and the upper cover plate and the lower cover plate are fixedly connected with the shell through screws respectively.

An upper sealing ring is arranged between the upper cover plate and the shell, and a lower sealing ring is arranged between the lower cover plate and the shell.

And guide strips are respectively arranged on two sides of the shell.

The lower edge of the front surface of the shell is protruded to form at least one module fixing hole.

The hot plug power terminal comprises a chuck seat, a left chuck and a right chuck, wherein the inner side surfaces of the left chuck and the right chuck are respectively provided with a reed, the chuck seat is used for fixing the left chuck and the right chuck and fixing the hot plug power terminal on the shell through a fixing screw, and the tail parts of the left chuck and the right chuck are connected with the circuit board through a cable.

The utility model also designs a variable-capacity charging pile which comprises a uniform-current controller, a module fixing box, a bus copper bar and the drawer type power converter module; a plurality of drawer cavities are arranged in the module fixing box and used for accommodating the drawer type power converter modules; the bus copper bar is vertically arranged on the back of the module fixing box and is used for being plugged with the hot plug power terminal; the uniform flow controller is communicated with each drawer type power supply converter module through the communication socket; when the drawer type power converter module is used, the using number of the drawer type power converter modules can be selected according to the load size.

The left side edge and the right side edge of the drawer cavity are provided with guide grooves, and the guide grooves are matched with the guide strips.

The technical scheme provided by the utility model has the beneficial effects that:

the utility model adopts a modular design, the appearance is like a drawer, the power transmission plug is arranged on the back of the drawer, and hot plugging can be realized; when the power converter breaks down or is damaged, the power converter can be replaced quickly, power supply can be recovered as quickly as possible, and power utilization guarantee is effectively improved; the whole structure is simple and compact to install, a plurality of unnecessary part structures are reduced, the size and the weight of the charging module can be effectively reduced, and the power density of the whole module is improved; fill electric pile capacity simultaneously and can expand as required, bring very big facility for design, purchase and use.

Drawings

The utility model is described in detail below with reference to examples and figures, in which:

FIG. 1 is a front perspective view of a module;

FIG. 2 is a perspective view of the back side of the module;

FIG. 3 is a perspective view of the module in a front orientation with hot swappable power terminals separated;

FIG. 4 is a perspective view of a busbar on the back side of the module;

FIG. 5 is an exploded view of the module;

FIG. 6 is a perspective view of a hot swap power terminal;

FIG. 7 is a perspective view of a module rear hot swap power terminal;

fig. 8 is a front perspective view of the variable capacity charging pile;

fig. 9 is a rear perspective view of the variable capacity charging post.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

The utility model discloses a drawer type power converter module, which is characterized in that fig. 1 shows a three-dimensional view of the front side of the module, fig. 2 shows a three-dimensional view of the back side of the module, fig. 3 shows a three-dimensional view of the front side of the module with separated hot plug power terminals, fig. 4 shows a three-dimensional view of a bus bar in the back side of the module, fig. 5 shows an exploded view of the module, fig. 6 shows a three-dimensional view of the hot plug power terminals, and fig. 7 shows a three-dimensional view of the hot plug power terminals in the back side of the module. The module comprises a cuboid shell, a circuit board and a cooling device, wherein the circuit board and the cooling device are installed inside the shell component, the front surface of the shell is provided with a handle 1 and a communication socket 2, and the back surface of the shell is provided with a plurality of hot plug power terminals 3; the handle is used for pulling the drawer type power converter module; the communication socket is used for communicating with the circuit board; the hot plug power terminal is electrically connected with the circuit board and comprises 4 alternating current input terminals and 2 direct current output terminals.

The drawer type power converter module is like a drawer, the hot plug power terminal 3 is arranged on the back of the drawer, and the hot plug power terminal 3 can be hot plugged by the busbar 16; when the power converter breaks down or is damaged, the whole module can be replaced quickly, power supply can be recovered as soon as possible, and power utilization guarantee is effectively improved.

Referring to fig. 1, 2 and 5, the cooling device is a water cooling device, and the water cooling device comprises a water inlet 9 and a water outlet 10 which are arranged on the front surface of the shell, and a cooling water channel 19 which is arranged in the shell and is connected with the water inlet and the water outlet.

Referring to fig. 5, the circuit board includes an upper circuit board 11 and a lower circuit board 12, the upper circuit board is disposed above the cooling water channel 19, and the heating element therein extends downward to be close to the cooling water channel for heat dissipation; the lower circuit board is arranged below the cooling water channel 19, and the heating element extends upwards to be tightly attached to the cooling water channel for heat dissipation.

Referring to fig. 5, the housing includes an upper cover plate 4, a housing 5, and a lower cover plate 6 stacked from top to bottom, and the upper and lower cover plates are respectively fixedly connected to the housing through screws.

Referring to fig. 5, an upper sealing ring 13 is arranged between the upper cover plate 4 and the shell 5, and a lower sealing ring 14 is arranged between the lower cover plate 6 and the shell 5. The utility model has high dustproof and waterproof grade, and the IP protection grade can reach IP 67.

Referring to fig. 1 to 5, guide bars 7 are respectively disposed on both sides of the housing 5. The module can move back and forth along the direction of the guide strip.

Referring to fig. 1 and 3, at least one module fixing hole 8 is formed at the lower edge of the front surface of the housing 5 in a protruding manner. During the installation, push the module to the end, hot plug power terminal 3 pegs graft with the copper bar 16 that converges at module rear, then runs through module fixed orifices 8 with the installation screw, with on the module fixed mounting frame.

Referring to the three-dimensional view of the hot-swap power terminal shown in fig. 6, the hot-swap power terminal 3 includes a header 3c, a left header 3a and a right header 3b, wherein the inner sides of the left header and the right header are both provided with spring plates 3d, the header is used for fixing the left and right headers and fixing the hot-swap power terminal on the housing by fixing screws, and the tails of the left header and the right header are connected to the circuit board by cables 18. It goes without saying that the left and right chucks and the spring plate are made of a metal material having good conductivity, and the chuck base is made of an insulating material having good insulation. The hot plug power terminal 3 forms the clamp force that an interference fit produced through the assembly between its inside reed 3d and the copper bar 16 that converges and comes to be good guaranteeing the contact of two power overlap joint points, and very convenience of customers installs and later maintenance, has also simplified the inner structure design who fills electric pile simultaneously.

Fig. 3 shows the installation form of the communication socket, a communication socket installation hole 2a is opened on the front surface of the shell, the communication socket 2 passes through the hole from inside to outside, the periphery of the communication socket is provided with external threads, and a communication socket fixing ring 2b is in threaded connection with the external threads, so that the communication socket 2 is fixed on the shell.

The utility model also discloses a variable capacity charging pile, wherein a stereoscopic view of the front side of the variable capacity charging pile is shown in fig. 8, a stereoscopic view of the back side of the variable capacity charging pile is shown in fig. 9, and the charging pile comprises a uniform flow controller (not shown), a module fixing box 15, a bus copper bar 16 and the drawer type power converter module; a plurality of drawer cavities are arranged in the module fixing box and used for accommodating the drawer type power converter modules; the bus copper bar is vertically arranged on the back of the module fixing box and is used for being plugged with the hot plug power terminal 3; the uniform flow controller is communicated with each drawer type power supply converter module through the communication socket 2. In fig. 8 and 9, the busbar 16 has 7 bars and is arranged vertically to connect the modules stacked one above the other. Fig. 8 and 9 show one column, and multiple columns may be provided depending on the total power requirement. When the drawer type power converter module is used, the using number of the drawer type power converter modules can be selected according to the load size. There are two scenarios: firstly, when purchasing, under the condition of satisfying current power demand, purchase some drawer type power converters less, let some drawer type power converters vacant, current drawer type power converter's total power equals the power demand. And secondly, a drawer type power supply converter is arranged in each drawer cavity, the total power of the drawer type power supply converters is larger than the power requirement, only part of the drawer type power supply converters are operated during operation, and the other drawer type power supply converters are used as standby to stop operation.

In the preferred embodiment, the drawer cavity is provided with guide slots on both the left and right side edges, the guide slots are matched with the guide strips 7, and the drawer type power converter moves back and forth along the guide slots.

The foregoing examples are illustrative only and are not intended to be limiting. Any equivalent modifications or variations without departing from the spirit and scope of the present application should be included in the claims of the present application.

Claims

1. A drawer power converter module, comprising: the portable power socket comprises a cuboid shell, a circuit board and a cooling device, wherein the circuit board and the cooling device are installed inside the shell component, a handle (1) and a communication socket (2) are arranged on the front surface of the shell, and a plurality of hot plug power terminals (3) are arranged on the back surface of the shell; the handle is used for pulling the drawer type power converter module; the communication socket is used for communicating with the circuit board; the hot plug power terminal is electrically connected with the circuit board and comprises 4 alternating current input terminals and 2 direct current output terminals.

2. The drawer power inverter module of claim 1, wherein: the cooling device adopts a water cooling device, and the water cooling device comprises a water inlet (9) and a water outlet (10) which are arranged on the front surface of the shell, and a cooling water channel (19) which is arranged in the shell and is connected with the water inlet and the water outlet.

3. The drawer power inverter module of claim 2, wherein: the circuit board comprises an upper circuit board (11) and a lower circuit board (12), the upper circuit board is arranged above the cooling water channel, and a heating element extends downwards to be tightly attached to the cooling water channel (19) for heat dissipation; the lower circuit board is arranged below the cooling water channel (19), and the heating element extends upwards to be tightly attached to the cooling water channel for heat dissipation.

4. The drawer power inverter module of claim 3, wherein: the shell comprises an upper cover plate (4), a shell (5) and a lower cover plate (6) which are overlapped from top to bottom, and the upper cover plate and the lower cover plate are fixedly connected with the shell through screws respectively.

5. The drawer power inverter module of claim 4, wherein: an upper sealing ring (13) is arranged between the upper cover plate (4) and the shell (5), and a lower sealing ring (14) is arranged between the lower cover plate (6) and the shell (5).

6. The drawer power inverter module of claim 5, wherein: and guide strips (7) are respectively arranged on two sides of the shell (5).

7. The drawer power inverter module of claim 6, wherein: the lower edge of the front surface of the shell (5) is protruded to form at least one module fixing hole (8).

8. A drawer type power converter module as claimed in any one of claims 1 to 7, wherein: hot plug power terminal (3) all are equipped with reed (3 d) including chuck seat (3 c), left chuck (3 a) and right chuck (3 b) on the medial surface of left chuck and right chuck, the chuck seat is used for fixed left and right chuck and fixes hot plug power terminal on the shell through fixed screw, and cable (18) connecting circuit board is passed through to the afterbody of left chuck and right chuck.

9. The utility model provides a variable capacity fills electric pile which characterized in that: comprising a levelling controller, a module securing box (15) and a busbar (16), and a drawer-type power converter module as claimed in any one of claims 1 to 8; a plurality of drawer cavities are arranged in the module fixing box and used for accommodating the drawer type power converter modules; the bus copper bar is vertically arranged on the back of the module fixing box and is used for being inserted with the hot plug power terminal (3); the uniform flow controller is communicated with each drawer type power converter module through the communication socket (2); when the drawer type power converter module is used, the using number of the drawer type power converter modules can be selected according to the load size.

10. The variable capacity charging pole of claim 9, wherein: the left side and the right side of the drawer cavity are both provided with guide grooves, the shell comprises an upper cover plate (4), a shell (5) and a lower cover plate (6) which are overlapped from top to bottom, and the upper cover plate and the lower cover plate are respectively and fixedly connected with the shell through screws; the two sides of the shell (5) are respectively provided with a guide strip (7), and the guide grooves are matched with the guide strips (7).