Switching power supply for charging new energy automobile

Abstract

The utility model discloses a switching power supply for charging a new energy automobile, which comprises a first shell, the first shell comprises a first mainboard and a first end plate, the first mainboard is of an L-shaped structure, and the first end plate is vertically arranged at the end part of the vertical section of the first mainboard; a second lifting plate and a first lifting plate are arranged on the horizontal section of the first main plate, and a buckle groove is formed in the second lifting plate; a circuit board is supported on the first lifting plate and the second lifting plate; the buckle groove and the buckle plate are arranged, so that the first main plate and the second main plate can be connected, the relative position of the first main plate and the second main plate is limited under the action of the connecting bolt, the first main plate and the second main plate are rapidly disassembled and assembled, and the current situation that a plurality of bolts are needed for connection is changed; and the disassembly and assembly efficiency of the first shell and the second shell is improved.

Description

Technical Field

[0001] The utility model relates to the field of switching power supplies, in particular to a switching power supply for charging new energy vehicles. Background Art

[0002] In electrical equipment, a switching power supply is usually installed to control its charging and discharging. For example, in new energy vehicles, a switching power supply is needed to control charging and discharging and protect electricity safety.

[0003] At present, the switching power supply includes an upper shell, a lower shell and a circuit board. A variety of electronic devices are arranged on the circuit board. In order to ensure the stable operation of the electronic devices, the circuit board is arranged in the upper shell and the lower shell. In order to make the upper shell and the lower shell stably connected and able to be disassembled, the upper shell and the lower shell are generally connected by multiple bolts.

[0004] Although the upper and lower housings can be stably connected by multiple bolts, it takes a long time to rotate and remove the bolts one by one when disassembling the upper and lower housings to repair the circuit boards and electronic devices. It also takes a long time to assemble (including assembly during production) the switching power supply. In particular, during production assembly, it is necessary to complete the assembly of batches of switching power supplies, which is inefficient. Utility Model Content

[0005] The utility model aims to provide a switching power supply for charging new energy vehicles, aiming to improve the problem that the shell of the existing switching power supply is connected by multiple bolts, which is not conducive to disassembly and assembly.

[0006] The utility model is implemented as follows: a switching power supply for charging new energy vehicles, including a first shell, the first shell including a first main board and a first end plate, the first main board is configured as an L-shaped structure, the first end plate is vertically arranged at the end of the vertical section of the first main board, a second lifting plate and a first lifting plate are arranged on the horizontal section of the first main board, and a snap groove is arranged on the second lifting plate; a circuit board is supported on the first lifting plate and the second lifting plate; it also includes a second shell, the second shell including a second main board and a second end plate, the second main board is configured as an L-shaped structure, a snap groove is arranged on the vertical section of the second main board, the second end plate is arranged at the end of the second main board, the second shell is arranged on the first shell, the snap groove is arranged, and the second end plate is directly opposite to the first end plate.

[0007] Preferably, the lengths of the first end plate are equal to those of the second end plate, and the height of the first end plate is smaller than the height of the second end plate.

[0008] Preferably, the length of the second main board is shorter than that of the first main board, the lower side of the second end board contacts the horizontal section of the first main board, and the lower side of the first end board is higher than the upper side of the horizontal section of the first main board.

[0009] Preferably, the first lifting plate and the second lifting plate are arranged in parallel and both pass through under the first end plate. The first lifting plate is located at a right angle to the first main board, and the second lifting plate is located at the edge of the first main board. The edge of the circuit board is supported on the lifting plate.

[0010] Preferably, a concave groove is provided on the lower side of the second end plate, the height of the concave groove is equal to the height of the lifting plate, and the length of the concave groove is equal to the distance between the two lifting plates.

[0011] Preferably, the length of the snap groove is smaller than that of the second lifting plate, one end is set to be an opening, and the cross section is set to be an L-shaped structure, the length of the snap plate is equal to the length of the snap groove, and the end face is also set to be an L-shaped structure.

[0012] Preferably, an ear plate is provided on the lower side of the horizontal section of the second main board adjacent to the first end plate, and the ear plate is connected to the first end plate via connecting bolts.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model is provided with a snap groove and a snap plate, so that the first main board and the second main board can be connected, and the relative position of the first main board and the second main board can be limited under the action of a connecting bolt, so as to realize the rapid disassembly and assembly of the first main board and the second main board, change the current situation that multiple bolts are required for connection, and improve the disassembly and assembly efficiency of the first shell and the second shell.

[0015] 2. The utility model is provided with a concave groove and a lifting plate, which can form a gas flow channel under the circuit board, providing convenience for accelerating the heat dissipation and cooling of the circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the first shell of the utility model;

[0018] Figure 3 It is a structural schematic diagram of the first housing and the circuit board of the utility model;

[0019] Figure 4 It is a structural schematic diagram of the second housing of the utility model;

[0020] Figure 5 It is a structural schematic diagram of the second lifting plate of the utility model.

[0021] In the figure: 1. first shell; 11. first main board; 12. first lifting plate; 13. first end plate; 14. convex plate; 15. limiting column; 16. second lifting plate; 17. snap groove; 2. second shell; 21. second main board; 22. second end plate; 23. heat dissipation hole; 24. recessed groove; 25. snap plate; 26. ear plate; 3. circuit board. DETAILED DESCRIPTION

[0022] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] The following is a further description with reference to the accompanying drawings and specific embodiments:

[0024] Example 1

[0025] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, a switching power supply for charging new energy vehicles includes a first housing 1, a second housing 2 and a circuit board 3. The first housing 1 includes a first main board 11 and a first end plate 13, and the second housing 2 includes a second main board 21 and a second end plate 22. The first main board 11 and the second main board 21 are both configured as L-shaped structures, so the first main board 11 and the second main board 21 form a tubular structure, the first end plate 13 and the second end plate 22 are respectively located at the two ends of the tubular structure, the second end plate 22 and the second main board 21 are connected on two surfaces, and the first end plate 13 and the first main board 11 are only connected on one surface. A second lifting plate 16 and a first lifting plate 12 are arranged on the horizontal section of the first main board 11, the first lifting plate 12 and the second lifting plate 16 are arranged in parallel, and both pass through the bottom of the first end plate 13, the first lifting plate 12 is located at a right angle to the first main board 11, the second lifting plate 16 is located at the edge of the first main board 11, and the edge of the circuit board 3 is supported on the lifting plate.

[0026] like Figure 4 , Figure 5As shown, in order to realize the rapid disassembly and assembly of the first shell 1 and the second shell 2, a snap groove 17 is provided on the second lifting plate 16, the length of the snap groove 17 is less than the length of the second lifting plate 16, one end is set to be open, and the cross section is set to be an L-shaped structure, and a snap plate 25 is provided on the vertical section of the second main board 21, the length of the snap plate 25 is equal to the length of the snap groove 17, the end surface is also set to be an L-shaped structure, and the snap plate 25 is set in the snap groove 17. When the first shell 1 and the second shell 2 need to be assembled, the second shell 2 needs to be moved from one end of the first shell 1 along the length direction of the first shell 1, and during the movement, the snap plate 25 is located in the snap groove 17. With the cooperation of the snap plate 25 and the snap groove 17, the first shell 1 and the second shell 2 can be stably connected, and the current situation of needing multiple bolts to connect is changed, thereby improving the disassembly and assembly efficiency of the first shell 1 and the second shell 2.

[0027] like Figure 2 , Figure 4 As shown, in order to stably connect the first shell 1 and the second shell 2, an ear plate 26 is provided on the lower side of the horizontal section of the second main plate 21 near the first end plate 13, and a threaded hole is provided on the ear plate 26. A through hole is provided on the first end plate 13, and the ear plate 26 is connected to the first end plate 13 through a connecting bolt, that is, the connecting bolt passes through the through hole and is threadedly inserted into the threaded hole. Under the action of the connecting bolt, the relative position of the first shell 1 and the second shell 2 is limited to prevent the first shell 1 and the second shell 2 from moving under the action of external force.

[0028] like Figure 2 As shown, in order to facilitate maintenance of the circuit board 3, the first lifting plate 12 and the second lifting plate 16 are connected to the circuit board 3 via connecting bolts. Therefore, the restriction of the circuit board 3 can be released by rotating the connecting bolts.

[0029] like Figure 3 , Figure 4 As shown, in order to facilitate cooling of the circuit board 3 and the protruding tubular structure of the circuit board 3, the length of the second main board 21 is less than the length of the first main board 11, the length of the first end plate 13 is equal to that of the second end plate 22, the height of the first end plate 13 is less than that of the second end plate 22, the lower side of the second end plate 22 is in contact with the horizontal section of the first main board 11, and the lower side of the first end plate 13 is higher than the upper side of the horizontal section of the first main board 11, therefore, the lifting plate and the circuit board 3 pass through the bottom of the first end plate 13, so that the circuit board 3 is conveniently connected to external electrical appliances. A recessed groove 24 is provided on the lower side of the second end plate 22, the height of the recessed groove 24 is equal to the height of the lifting plate, and the length is equal to the spacing between the two lifting plates, therefore, the recessed groove 24 and the lifting plate cooperate to form a channel for gas circulation, and at the same time cooperate with the heat dissipation hole 23 to increase the channel for gas circulation around the circuit board 3, so as to improve the heat dissipation and cooling efficiency.

[0030] Example 2

[0031] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, a switching power supply for charging new energy vehicles includes a first housing 1, a second housing 2 and a circuit board 3. The first housing 1 includes a first main board 11 and a first end plate 13, and the second housing 2 includes a second main board 21 and a second end plate 22. The first main board 11 and the second main board 21 are both configured as L-shaped structures, so the first main board 11 and the second main board 21 form a tubular structure, the first end plate 13 and the second end plate 22 are respectively located at the two ends of the tubular structure, the second end plate 22 and the second main board 21 are connected on two surfaces, and the first end plate 13 and the first main board 11 are only connected on one surface. A second lifting plate 16 and a first lifting plate 12 are arranged on the horizontal section of the first main board 11, the first lifting plate 12 and the second lifting plate 16 are arranged in parallel, and both pass through the bottom of the first end plate 13, the first lifting plate 12 is located at a right angle to the first main board 11, the second lifting plate 16 is located at the edge of the first main board 11, and the edge of the circuit board 3 is supported on the lifting plate.

[0032] like Figure 4 , Figure 5 As shown, in order to realize the rapid disassembly and assembly of the first shell 1 and the second shell 2, a snap groove 17 is provided on the second lifting plate 16, the length of the snap groove 17 is less than the length of the second lifting plate 16, one end is set to be open, and the cross section is set to be an L-shaped structure, and a snap plate 25 is provided on the vertical section of the second main board 21, the length of the snap plate 25 is equal to the length of the snap groove 17, the end surface is also set to be an L-shaped structure, and the snap plate 25 is set in the snap groove 17. When the first shell 1 and the second shell 2 need to be assembled, the second shell 2 needs to be moved from one end of the first shell 1 along the length direction of the first shell 1, and during the movement, the snap plate 25 is located in the snap groove 17. With the cooperation of the snap plate 25 and the snap groove 17, the first shell 1 and the second shell 2 can be stably connected, and the current situation of needing multiple bolts to connect is changed, thereby improving the disassembly and assembly efficiency of the first shell 1 and the second shell 2.

[0033] like Figure 2 , Figure 4As shown, in order to stably connect the first shell 1 and the second shell 2, an ear plate 26 is provided on the lower side of the horizontal section of the second main plate 21 near the first end plate 13, and a threaded hole is provided on the ear plate 26. A through hole is provided on the first end plate 13, and the ear plate 26 is connected to the first end plate 13 through a connecting bolt, that is, the connecting bolt passes through the through hole and is threadedly inserted into the threaded hole. Under the action of the connecting bolt, the relative position of the first shell 1 and the second shell 2 is limited to prevent the first shell 1 and the second shell 2 from moving under the action of external force. In order to enhance the relative stability of the first shell 1 and the second shell 2, a convex plate 14 is provided at one end of the vertical section of the first main board 11 away from the first end plate 13, and a limiting column 15 is provided on the convex plate 14. The limiting column 15 is away from the first end plate 13 and is arranged along the length direction of the first main board 11. Heat dissipation holes 23 are provided on the second main board 21 and the second end plate 22. The limiting column 15 can be inserted into the heat dissipation holes 23 of the second end plate 22. Under the action of the limiting column 15, the stability of the first shell 1 and the second shell 2 can be further enhanced without affecting the rapid disassembly and assembly of the first shell 1 and the second shell 2.

[0034] like Figure 2 As shown, in order to facilitate maintenance of the circuit board 3, the first lifting plate 12 and the second lifting plate 16 are connected to the circuit board 3 via connecting bolts. Therefore, the restriction of the circuit board 3 can be released by rotating the connecting bolts.

[0035] like Figure 3 , Figure 4 As shown, in order to facilitate cooling of the circuit board 3 and the protruding tubular structure of the circuit board 3, the length of the second main board 21 is less than the length of the first main board 11, the length of the first end plate 13 is equal to that of the second end plate 22, the height of the first end plate 13 is less than that of the second end plate 22, the lower side of the second end plate 22 is in contact with the horizontal section of the first main board 11, and the lower side of the first end plate 13 is higher than the upper side of the horizontal section of the first main board 11, therefore, the lifting plate and the circuit board 3 pass through the bottom of the first end plate 13, so that the circuit board 3 is conveniently connected to external electrical appliances. A recessed groove 24 is provided on the lower side of the second end plate 22, the height of the recessed groove 24 is equal to the height of the lifting plate, and the length is equal to the spacing between the two lifting plates, therefore, the recessed groove 24 and the lifting plate cooperate to form a channel for gas circulation, and at the same time cooperate with the heat dissipation hole 23 to increase the channel for gas circulation around the circuit board 3, so as to improve the heat dissipation and cooling efficiency.

[0036] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be modified and varied in various ways. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A switching power supply for charging new energy vehicles, characterized in that: The invention comprises a first shell (1), wherein the first shell (1) comprises a first main board (11) and a first end board (13), wherein the first main board (11) is arranged in an L-shaped structure, wherein the first end board (13) is vertically arranged at the end of the vertical section of the first main board (11), and a second lifting board (16) and a first lifting board (12) are arranged on the horizontal section of the first main board (11), wherein the second lifting board (16) is provided with a snap-fit ​​groove (17); and a circuit board ( 3); further comprising a second shell (2), the second shell (2) comprising a second main board (21) and a second end plate (22), the second main board (21) being arranged in an L-shaped structure, a snap plate (25) being arranged on a vertical section of the second main board (21), the second end plate (22) being arranged at an end of the second main board (21), the second shell (2) being arranged on the first shell (1), the snap plate (25) being arranged in a snap groove (17), and the second end plate (22) being directly opposite to the first end plate (13).

2. A switching power supply for charging a new energy vehicle according to claim 1, characterized in that: The lengths of the first end plate (13) and the second end plate (22) are equal, and the height of the first end plate (13) is smaller than the height of the second end plate (22).

3. A switching power supply for charging a new energy vehicle according to claim 2, characterized in that: The length of the second main board (21) is smaller than that of the first main board (11), the lower side surface of the second end board (22) is in contact with the horizontal section of the first main board (11), and the lower side surface of the first end board (13) is higher than the upper side surface of the horizontal section of the first main board (11).

4. A switching power supply for charging a new energy vehicle according to claim 3, characterized in that: The first lifting plate (12) and the second lifting plate (16) are arranged in parallel and both pass through the bottom of the first end plate (13); the first lifting plate (12) is located at a right angle to the first main plate (11); the second lifting plate (16) is located at the edge of the first main plate (11); and the edge of the circuit board (3) is supported on the lifting plate.

5. A switching power supply for charging a new energy vehicle according to claim 4, characterized in that: The lower side of the second end plate (22) is provided with a recessed groove (24), the height of the recessed groove (24) being equal to the height of the lifting plate, and the length of the recessed groove (24) being equal to the distance between the two lifting plates.

6. A switching power supply for charging a new energy vehicle according to claim 1, characterized in that: The length of the snap groove (17) is less than the length of the second lifting plate (16), one end is set to be open, and the cross section is set to be an L-shaped structure. The length of the snap plate (25) is equal to the length of the snap groove (17), and the end face is also set to be an L-shaped structure.

7. A switching power supply for charging a new energy vehicle according to claim 1, characterized in that: A lug plate (26) is provided on the lower side of the horizontal section of the second main plate (21) adjacent to the first end plate (13), and the lug plate (26) is connected to the first end plate (13) via connecting bolts.

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