New energy automobile charging control box

Abstract

The utility model provides a charging control box for a new energy automobile. The charging control box comprises a box body, a box cover and a control circuit board, the control circuit board is fixed inside the box body, a plurality of electrical connectors are fixed on the side wall of the box body, all the electrical connectors are electrically connected with the control circuit board, and the box cover is fixed at an opening at the upper end of the box body in a sealed manner; a limiting switch is fixed to the inner wall of the box body and electrically connected with the control circuit board, and the trigger end of the limiting switch abuts against the lower end face of the box cover. According to the utility model, electric shock accidents can be effectively avoided, and potential safety hazards are eliminated.

Description

Technical Field

[0001] The utility model relates to the technical field of charging control boxes, and more specifically, to a charging control box for new energy vehicles. Background Art

[0002] A charging control box for new energy vehicles is a device used to control the charging of new energy vehicles. Currently, the charging control boxes for new energy vehicles on the market include a box body, a box cover, and a control circuit board; the control circuit board is fixed inside the box body, several electrical connectors are fixed on the side wall of the box body, and all electrical connectors are electrically connected to the control circuit board, and the box cover is hermetically fixed at the opening at the upper end of the box body; however, in the structure of the charging control box for new energy vehicles on the market currently, when the box cover is accidentally opened, since the charging control box for new energy vehicles does not have an opening protection structure, the control circuit board will always be in a state of being connected to an external high-voltage charging device, which is likely to cause an electric shock accident and there is a great potential safety hazard. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a charging control box for new energy vehicles, which can effectively avoid the occurrence of electric shock accidents and eliminate potential safety hazards.

[0004] The utility model provides a charging control box for new energy vehicles, including a box body, a box cover, and a control circuit board; the control circuit board is fixed inside the box body, several electrical connectors are fixed on the side wall of the box body, and all electrical connectors are electrically connected to the control circuit board, and the box cover is hermetically fixed at the opening at the upper end of the box body; a limit switch is fixed on the inner wall of the box body, the limit switch is electrically connected to the control circuit board, and the trigger end of the limit switch abuts against the lower end surface of the box cover.

[0005] After the utility model adopts the above structure, when the box cover is accidentally opened, the limit switch will lose the trigger of the box cover and be in an off state, so that the control circuit board can receive the signal that the box cover is opened. At this time, the control circuit board can transmit the opening signal to the external high-voltage charging device. Subsequently, the external high-voltage charging device can stop supplying power to the charging control box for new energy vehicles, that is, it can effectively avoid the occurrence of electric shock accidents and eliminate potential safety hazards.

[0006] In a possible implementation manner, a ventilation hole is further provided on the side wall of the box body, and a ventilation valve is connected to the outer end of the ventilation hole; through the arrangement of the ventilation hole and the ventilation valve, while ensuring waterproofness, the air inside the box body can be connected to the air outside the box body, so as to ensure the air pressure balance inside the box body.

[0007] In a possible implementation, a number of support columns are provided on the inner bottom of the box body, the control circuit board is supported on the number of support columns, and insulating sheets are embedded between the control circuit board and the number of support columns; the upper ends of a part of the support columns are provided with limit columns having an outer diameter smaller than that of the support columns, and the control circuit board is provided with limit holes corresponding to the limit columns one by one, and each limit column is inserted into the limit hole at the corresponding position; threaded holes are provided inside the remaining part of the support columns, and the control circuit board is fixed to the box body by screws passing through the control circuit board and threadedly connected to the threaded holes; through the arrangement of the number of support columns, the number of support columns can support the control circuit board, so that a gap can be formed between the bottom surface of the control circuit board and the inner bottom of the box body, which is beneficial to the heat dissipation of the control circuit board and the components on the control circuit board; furthermore, by providing insulating sheets between the control circuit board and the number of support columns, the situation of short circuit between the control circuit board and the number of support columns can be avoided; in addition, since the upper ends of a part of the support columns are provided with limit columns having an outer diameter smaller than that of the support columns, and the control circuit board is provided with limit holes corresponding to the limit columns one by one, and each limit column is inserted into the limit hole at the corresponding position, the control circuit board can be limited, that is, it is convenient for the assembly of the control circuit board and the box body; in addition, since threaded holes are provided inside the remaining part of the support columns, and the control circuit board is fixed to the box body by screws passing through the control circuit board and threadedly connected to the threaded holes, the control circuit board can be reliably fixed to the box body.

[0008] In a possible implementation, an annular groove is provided at the upper end of the box body, a sealing ring is embedded in the annular groove, the upper end of the sealing ring protrudes from the annular groove, and the sealing ring is in close contact and sealed with the inner wall of the annular groove and the lower end surface of the box cover; by adopting this structure, the sealing ring can reliably seal the gap between the box cover and the box body, so that the box cover can be reliably connected to the opening at the upper end of the box body in a sealed manner.

[0009] In a possible implementation, a number of positioning holes are provided at the edge of the box cover, and positioning columns corresponding to the number of positioning holes one by one in the vertical direction are provided at the upper end of the box body, and each positioning column is inserted into the positioning hole at the corresponding position, and all the positioning columns are located outside the sealing ring; by adopting this structure, when the box cover and the box body are assembled, each positioning column can be inserted into the positioning hole at the corresponding position, so that the positioning of the box cover and the box body can be achieved, which is convenient for the assembly of the box cover and the box body and can improve the reliability after the box cover and the box body are assembled; and since all the positioning columns are located outside the sealing ring, the sealing structure of the sealing ring for the box cover and the box body can be avoided from being damaged.

[0010] In a possible implementation, the box cover is fixed at the opening at the upper end of the box body by a number of bolts circumferentially spaced apart. The screw portion of each bolt passes through the box cover and is threadedly connected to the upper end of the box body, and all the bolts are located outside the sealing ring. After adopting this structure, the box cover can be reliably fixed at the opening at the upper end of the box body by a number of bolts; and since all the bolts are located outside the sealing ring, it is possible to avoid damaging the sealing structure of the sealing ring for the box cover and the box body. Brief Description of the Drawings

[0011] Figure 1 is a three-dimensional structural diagram of the present utility model;

[0012] Figure 2 is a partially exploded three-dimensional structural diagram of the present utility model;

[0013] Figure 3 is a three-dimensional structural diagram after the control circuit board is disassembled from the box body. Detailed Description of the Embodiments

[0014] First of all, those skilled in the art should understand that these embodiments are only used to explain the technical principles of the embodiments of the present application and are not intended to limit the protection scope of the embodiments of the present application. Those skilled in the art can make adjustments according to needs to adapt to specific application scenarios.

[0015] In the description of the embodiments of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "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 directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0016] In the embodiments of the present application, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the first feature is at a higher horizontal height than the second feature. The first feature being "under", "below" and "beneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the first feature is at a lower horizontal height than the second feature.

[0017] The present application will be further described in detail below with reference to the drawings and specific embodiments.

[0018] See Figures 1-3As shown in the figure, an embodiment of the present application discloses a charging control box for a new energy vehicle, which includes a box body 1, a box cover 2, and a control circuit board 3; the control circuit board 3 is fixed inside the box body 1, and several electrical connectors 4 are fixed on the side wall of the box body 1, and all the electrical connectors 4 are electrically connected to the control circuit board 3, and the box cover 2 is hermetically fixed at the opening at the upper end of the box body 1; a limit switch 5 is fixed on the inner wall of the box body 1, the limit switch 5 is electrically connected to the control circuit board 3, and the triggering end of the limit switch 5 abuts against the lower end surface of the box cover 2.

[0019] A ventilation hole 11 is also provided on the side wall of the box body 1, and a ventilation valve 6 is connected to the outer end of the ventilation hole 11; through the arrangement of the ventilation hole and the ventilation valve, the air inside the box body can be connected to the air outside the box body while ensuring waterproofness, so as to ensure the air pressure balance inside the box body.

[0020] Several support columns 12 are provided on the inner bottom of the box body 1, the control circuit board 3 is supported on the several support columns 12, and insulating sheets are embedded between the control circuit board 3 and the several support columns 12; the upper ends of a part of the support columns 12 are provided with limit columns 121 whose outer diameters are smaller than those of the support columns 12, and the control circuit board 3 is provided with limit holes 31 corresponding to the limit columns 121 one by one, and each limit column 121 is inserted into the limit hole 31 at the corresponding position; screw holes 122 are provided inside the remaining part of the support columns 12, and the control circuit board 3 is fixed to the box body 1 through screws passing through the control circuit board 3 and threadedly connected to the screw holes 122; through the arrangement of the several support columns, the several support columns can support the control circuit board, so as to form a gap between the bottom surface of the control circuit board and the inner bottom of the box body, which is beneficial to the heat dissipation of the control circuit board and the components on the control circuit board; furthermore, after insulating sheets are provided between the control circuit board and the several support columns, the situation of short circuit between the control circuit board and the several support columns can be avoided; in addition, since the upper ends of a part of the support columns are provided with limit columns whose outer diameters are smaller than those of the support columns, and the control circuit board is provided with limit holes corresponding to the limit columns one by one, and each limit column is inserted into the limit hole at the corresponding position, the control circuit board can be limited, that is, it is convenient for the assembly of the control circuit board and the box body; in addition, since screw holes are provided inside the remaining part of the support columns, and the control circuit board is fixed to the box body through screws passing through the control circuit board and threadedly connected to the screw holes, the control circuit board can be reliably fixed to the box body together.

[0021] An annular groove 13 is provided at the upper end of the box body 1, and a sealing ring 7 is embedded in the annular groove 13. The upper end of the sealing ring 7 protrudes from the annular groove 13, and the sealing ring 7 is in close contact and sealed with the inner wall of the annular groove 13 and the lower end surface of the box cover 2. After adopting this structure, the sealing ring can reliably seal the gap between the box cover and the box body, so that the box cover can be reliably connected to the opening at the upper end of the box body in a sealed manner.

[0022] A plurality of positioning holes 21 are provided at the edge of the box cover 2, and positioning posts 14 corresponding to the plurality of positioning holes 21 one by one in the vertical direction are provided at the upper end of the box body 1. Each positioning post 14 is inserted into the positioning hole 21 at the corresponding position, and all the positioning posts 14 are located outside the sealing ring 7. After adopting this structure, when the box cover and the box body are assembled, each positioning post can be inserted into the positioning hole at the corresponding position, so as to play a role in positioning the box cover and the box body, which can facilitate the assembly of the box cover and the box body and improve the reliability after the box cover and the box body are assembled. And since all the positioning posts are located outside the sealing ring, the sealing structure of the sealing ring for the box cover and the box body can be avoided from being damaged.

[0023] The box cover 2 is fixed to the opening at the upper end of the box body 1 by a plurality of bolts 8 spaced circumferentially. The screw part of each bolt 8 passes through the box cover 2 and is threadedly connected to the upper end of the box body 1, and all the bolts 8 are located outside the sealing ring 7. After adopting this structure, the box cover can be reliably fixed to the opening at the upper end of the box body by a plurality of bolts. And since all the bolts are located outside the sealing ring, the sealing structure of the sealing ring for the box cover and the box body can be avoided from being damaged.

[0024] The above is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any change or replacement that can be easily thought of by those skilled in the art within the technical scope disclosed in the present application should be covered by the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A new energy vehicle charging control box, comprising a box body (1), a box cover (2) and a control circuit board (3); the control circuit board (3) is fixed inside the box body (1), a plurality of electrical connectors (4) are fixed on the side wall of the box body (1), all of the electrical connectors (4) are electrically connected to the control circuit board (3), and the box cover (2) is sealedly fixed at an opening at the upper end of the box body (1); the characteristics are: A limit switch (5) is fixed on the inner wall of the box body (1), the limit switch (5) is electrically connected to the control circuit board (3), and the trigger end of the limit switch (5) abuts against the lower end surface of the box cover (2).

2. The new energy vehicle charging control box according to claim 1 is characterized in that: A ventilation hole (11) is also provided on the side wall of the box body (1), and a ventilation valve (6) is connected to the outer end of the ventilation hole (11).

3. The new energy vehicle charging control box according to claim 1 or 2, characterized in that: A plurality of support columns (12) are arranged on the inner bottom of the box body (1), the control circuit board (3) is supported on the plurality of support columns (12), and an insulating sheet is embedded between the control circuit board (3) and the plurality of support columns (12); a portion of the support columns (12) are provided with a limiting column (121) having an outer diameter smaller than that of the support column (12) at the upper end, the control circuit board (3) is provided with limiting holes (31) corresponding to the limiting columns (121) one by one, and each limiting column (121) is inserted into the limiting hole (31) at a corresponding position; a threaded hole (122) is arranged on the inner side of the remaining portion of the support columns (12), and the control circuit board (3) is fixed to the box body (1) by means of screws which are inserted into the control circuit board (3) and threadedly connected to the threaded holes (122).

4. The new energy vehicle charging control box according to claim 1 or 2, characterized in that: The upper end of the box body (1) is provided with an annular embedding groove (13), a sealing ring (7) is embedded in the annular embedding groove (13), the upper end of the sealing ring (7) protrudes from the annular embedding groove (13), and the sealing ring (7) is tightly sealed against the inner wall of the annular embedding groove (13) and the lower end surface of the box cover (2).

5. The new energy vehicle charging control box according to claim 4 is characterized in that: A plurality of positioning holes (21) are arranged at the edge of the box cover (2), and a positioning column (14) vertically corresponding to the plurality of positioning holes (21) is arranged at the upper end of the box body (1), each positioning column (14) is inserted into a positioning hole (21) at a corresponding position, and all the positioning columns (14) are located outside the sealing ring (7).

6. The new energy vehicle charging control box according to claim 5 is characterized in that: The box cover (2) is fixed to the opening at the upper end of the box body (1) by means of a plurality of bolts (8) distributed at circumferential intervals, the screw portion of each of the bolts (8) being inserted into the box cover (2) and being threadedly connected to the upper end of the box body (1), and all of the bolts (8) being located outside the sealing ring (7).

Images