Underneath type electric car coupler protection structure

Abstract

The application discloses a lower-positioned electric car hook protection structure, which comprises a water blocking block and a water blocking strip. The water blocking block is arranged on the side of a shell, extends from the upper part of the shell to the lower part of the shell, is located above a flip cover, and is provided with a water blocking plate on the side away from the shell. The water blocking plate is located on the side of the flip cover, and the upper end of the water blocking block is provided with a water guide groove in the length direction. The water blocking strip is fixedly connected to the side wall of the shell, extends from the upper part of the shell to the lower part of the shell, and is located between the shell and the flip cover. In the application, the water blocking block can discharge the water on the upper part of the shell through the water guide groove, so that the water flow pressure on the side is reduced. Meanwhile, the gap between the water blocking plate and the flip cover and the gap between the water blocking plate, the water blocking block and the shell and the flip cover form a labyrinth structure, which can effectively reduce the water flow pressure on the water blocking strip under strong water impact, and then the water flow can be prevented from entering the flip cover through the water blocking strip.

Description

Technical Field

[0001] This invention belongs to the field of electric coupler technology, and particularly relates to a bottom-mounted electric coupler protective structure. Background Technology

[0002] Traditional under-mounted electric couplers consist of a housing and a flip cover. The housing is held in place by a pull-rod spring. Additionally, insulator sealing rings are installed on the upper, left, and right sides of the housing, while a D-shaped sealing strip is located on the lower side. When the flip cover is on top of the housing, its upper edge is pressed against the upper lip of the insulator sealing ring, and its lower surface is pressed against the D-shaped sealing strip, achieving top and bottom sealing protection. Simultaneously, the edges of the left and right insulator sealing rings are pressed against the inner side of the flip cover, achieving left and right side sealing protection.

[0003] However, in a flushing environment, water can flow along the side wall of the housing and enter the inside of the flip cover through the gap between the side wall of the housing and the flip cover, causing water to get into critical electrical components, which in turn can lead to insulation failure or open circuit in the critical electrical components. Summary of the Invention

[0004] To overcome the shortcomings of the prior art, this invention provides a bottom-mounted electric coupler protection structure that can prevent water from entering the flip cover along the side wall of the shell in a flooded environment.

[0005] The objective of this invention is achieved through the following technical solution:

[0006] A bottom-mounted electric coupler protection structure, comprising:

[0007] A water-blocking block is provided on the side of the shell. The water-blocking block extends from the upper part of the shell to the lower part of the shell. The water-blocking block is located above the flip cover. A water-blocking plate is provided on the side of the water-blocking block away from the shell. The water-blocking plate is located on the side of the flip cover. A water-guiding groove is provided at the upper end of the water-blocking block along the length direction.

[0008] A water-blocking strip is fixedly connected to the side wall of the housing. The water-blocking strip extends from the upper part of the housing to the lower part of the housing and is located between the housing and the flip cover.

[0009] In one embodiment, the side wall of the housing is provided with a mounting groove with an opening at the lower end. The width of the mounting groove is greater than the width of the water-blocking strip, and the length of the mounting groove matches the length of the water-blocking strip. The water-blocking strip is fixedly connected to the side of the mounting groove away from the water-blocking block.

[0010] The beneficial effects of adopting the above technical solution are as follows: the side of the installation groove that is not connected to the water-blocking strip can serve as a drainage channel to discharge the water flowing into the installation groove in a timely manner, thereby avoiding excessive water accumulation in the installation groove and affecting the water-blocking effect of the water-blocking strip, and thus preventing water from entering the inside of the flip cover.

[0011] In one embodiment, a limiting boss is provided in the mounting groove, and a first pressure plate is screwed into the mounting groove. The side of the water-blocking strip away from the water-blocking block and the limiting boss are both located between the first pressure plate and the bottom of the mounting groove. The height of the limiting boss matches the thickness of the water-blocking strip.

[0012] The beneficial effects of adopting the above technical solution are as follows: by adjusting the distance between the first pressure plate and the bottom of the mounting groove, the pressure applied to the water-blocking strip can be adjusted so that the edge of the water-blocking strip is raised and tightly attached to the flip cover; the limiting boss can restrict the position of the first pressure plate to avoid the water-blocking strip being too tightly attached to the flip cover due to excessive squeezing by the first pressure plate, thereby avoiding the water-blocking strip affecting the opening and closing of the flip cover.

[0013] In one embodiment, the water-blocking strip is provided with a first connecting hole, which is sleeved on the limiting boss.

[0014] The beneficial effects of adopting the above technical solution are as follows: the water-blocking strip can be installed on the limiting boss by relying on the first connecting hole on it, which is conducive to the installation of the water-blocking strip, and the limiting boss can restrict the position of the water-blocking strip.

[0015] In one embodiment, a first threaded hole is provided on the limiting boss, and a first countersunk hole for installing a first countersunk screw is provided on the first pressure plate. The screw of the first countersunk screw passes through the first countersunk hole and is threadedly connected to the first threaded hole.

[0016] The beneficial effects of adopting the above technical solution are as follows: both the water-blocking strip and the first pressure plate can be fastened to the limiting boss by the first countersunk screw, and rotating the first countersunk screw can adjust the pressure applied to the water-blocking strip by the first pressure plate, thereby adjusting the tightness between the water-blocking strip and the flip cover; in addition, the first countersunk hole is a reserved installation position for the first countersunk screw, which can avoid the first countersunk screw being exposed on the first pressure plate and affecting the opening or closing of the flip cover.

[0017] In one embodiment, a dustproof sheet is fixedly connected to the bottom of the housing, with one side of the dustproof sheet located at the lower end of the mounting groove, and the side of the dustproof sheet abutting against the side of the flip cover near the mounting groove.

[0018] The beneficial effects of adopting the above technical solution are as follows: Since there is a cavity between the flip cover, the shell, the water baffle and the first pressure plate, and the lower end of the mounting groove is provided with an opening, a dustproof sheet is set to cover the lower end of the cavity to prevent dust and other debris from entering the cavity or the inside of the flip cover.

[0019] In one embodiment, a drain outlet is provided at the bottom of the mounting groove on the side away from the water-blocking strip.

[0020] The beneficial effects of adopting the above technical solution are as follows: since the dustproof sheet will cover the bottom of the mounting groove, the drain outlet can be used to drain the water flow at the bottom of the mounting groove in a timely manner.

[0021] In one embodiment, a limiting washer is connected to the bottom of the housing, and a second pressure plate is screwed to the bottom of the housing. The side of the dustproof sheet away from the flip cover and the limiting washer are both located between the housing and the second pressure plate, and the thickness of the limiting washer matches the thickness of the dustproof sheet.

[0022] The beneficial effects of adopting the above technical solution are as follows: by adjusting the distance between the second pressure plate and the bottom of the housing, the pressure applied to the dustproof sheet can be adjusted so that the dustproof sheet is tightly attached to the inside of the flip cover; the limiting washer can limit the position of the second pressure plate to avoid the dustproof sheet being too tightly attached to the flip cover due to excessive compression by the second pressure plate, thereby avoiding the dustproof sheet affecting the opening and closing of the flip cover.

[0023] In one embodiment, the dustproof sheet is provided with a second connecting hole, which is fitted onto the limiting washer.

[0024] The beneficial effects of adopting the above technical solution are as follows: the dustproof sheet can be installed on the limiting washer by relying on the second connecting hole on it, which is conducive to the positioning and installation of the dustproof sheet, and the limiting washer can restrict the position of the dustproof sheet.

[0025] In one embodiment, the limiting washer is provided with a second threaded hole, and the second pressure plate is provided with a second countersunk hole for installing a second countersunk screw. The screw of the second countersunk screw passes through the second countersunk hole and the limiting washer in sequence and is threadedly connected to the second threaded hole.

[0026] The beneficial effects of adopting the above technical solution are as follows: the dustproof sheet, the limiting washer, and the second pressure plate can all be fastened to the housing by the second countersunk screw, and rotating the second countersunk screw can adjust the pressure applied to the dustproof sheet by the second pressure plate, thereby adjusting the tightness between the dustproof sheet and the flip cover.

[0027] The beneficial effects of this invention are as follows:

[0028] The water-blocking block can drain water from the upper part of the shell through the water channel to prevent water from flowing to the side of the flip cover, thereby reducing the side water flow pressure. At the same time, the gap between the water-blocking plate and the flip cover can block and divert most of the side water flow, so that only a small amount of water flow enters between the water-blocking plate and the flip cover. The labyrinth structure formed by the water-blocking plate, the water-blocking block and the gap between the shell and the flip cover can make it difficult for this small amount of water flow to reach the water-blocking strip, thereby effectively reducing the water flow pressure on the water-blocking strip under strong water impact, and thus preventing water from flowing into the flip cover through the water-blocking strip. Attached Figure Description

[0029] The invention will now be described in more detail with reference to embodiments and the accompanying drawings.

[0030] Figure 1 A schematic diagram of a traditional under-mounted electric coupler is shown.

[0031] Figure 2 Showing Figure 1 Sectional view at point AA;

[0032] Figure 3 Showing Figure 1 Sectional view at point BB;

[0033] Figure 4 The image shows an isometric view of a conventional under-mounted electric coupler;

[0034] Figure 5 A schematic diagram of the structure of the present invention is shown;

[0035] Figure 6 A front view of the invention is shown;

[0036] Figure 7 Showing Figure 6 Sectional view at CC;

[0037] Figure 8 Showing Figure 7 A magnified view of a section at point D;

[0038] Figure 9 This shows a schematic diagram of the structure of the present invention after the flip cover is removed;

[0039] Figure 10 An exploded view of the water-retaining strip in this invention is shown;

[0040] Figure 11 An exploded view of the dustproof sheet in this invention is shown;

[0041] Figure 12 This shows a schematic diagram of the structure of the dustproof sheet in this invention;

[0042] In the accompanying drawings, the same parts use the same reference numerals. The drawings are not to scale.

[0043] Figure label:

[0044] 1-Housing, 2-Flip cover, 3-Pull rod spring, 4-Insulator sealing ring, 5-D-type sealing strip, 6-Water baffle, 7-Water inlet groove, 8-Water baffle plate, 9-Mounting groove, 10-Water baffle strip, 1001-First connecting hole, 11-First pressure plate, 1101-First countersunk hole, 12-Dustproof sheet, 1201-Second connecting hole, 13-Drain outlet, 14-Limiting boss, 1401-First threaded hole, 15-First countersunk screw, 16-Second threaded hole, 17-Limiting washer, 18-Second pressure plate, 1801-Second countersunk hole, 19-Second countersunk screw, 20-Cavity. Detailed Implementation

[0045] The invention will now be further described with reference to the accompanying drawings.

[0046] Figure 1-3 The diagram illustrates the structure of a traditional under-mounted electric coupler. This type of coupler includes a housing 1 and a flip cover 2. The housing 1 is held upright by a spring 3. Additionally, insulator sealing rings 4 are located on the upper, left, and right sides of the housing 1, and a D-shaped sealing strip is located on the lower side. When the flip cover 2 is placed on the housing 1, its upper edge is pressed against the upper lip of the insulator sealing ring 4, and its lower surface is pressed against the D-shaped sealing strip 5, achieving sealing protection on both the upper and lower sides. Simultaneously, the edges of the left and right insulator sealing rings 4 are pressed against the inner side of the flip cover 2, achieving sealing protection on both the left and right sides.

[0047] But if Figure 4 As shown, in the event of heavy rainfall or top-down water spray, water will flow along the side wall of the housing 1 and enter the interior of the flip cover 2 through the gap between the side wall of the housing 1 and the flip cover 2, causing water to get into the critical electrical components, which in turn can lead to insulation failure or open circuit in the critical electrical components.

[0048] Therefore, the present invention provides a bottom-mounted electrical coupler protection structure, such as Figure 5-10 As shown, it includes:

[0049] Water-blocking block 6 is provided on the side of housing 1. Water-blocking block 6 extends from the upper part of housing 1 to the lower part of housing 1. Water-blocking block 6 is located above flip cover 2. Water-blocking plate 8 is provided on the side of water-blocking block 6 away from housing 1. Water-blocking plate 8 is located on the side of flip cover 2. Water-guiding groove 7 is provided at the upper end of water-blocking block 6 along the length direction.

[0050] A water-blocking strip 10 is fixedly connected to the side wall of the housing 1. The water-blocking strip 10 extends from the upper part of the housing 1 to the lower part of the housing 1 and is located between the housing 1 and the flip cover 2.

[0051] It is understandable that, such as Figure 5 As shown, the water-blocking block 6 can drain the water in the upper part of the shell 1 in the direction of the arrow through the water-guiding channel 7, so as to prevent water from flowing to the side of the flip cover 2, thereby reducing the side water flow pressure; at the same time, as Figure 7 and Figure 8 As shown, the gap between the baffle plate 8 and the flip cover 2 can block and divert most of the side water flow, so that only a small amount of water flow enters between the baffle plate 8 and the flip cover 2. The labyrinth structure formed by the baffle plate 8, the baffle block 6 and the gap between the housing 1 and the flip cover 2 can make it difficult for this small amount of water flow to reach the baffle strip 10, thereby effectively reducing the water flow pressure on the baffle strip 10 under strong water impact. In turn, the baffle strip 10 prevents water from flowing into the flip cover 2, so as to ensure that the lower-mounted electric coupler achieves the IP55 protection effect.

[0052] It should be noted that the water-blocking block 6 is tilted as a whole, and the water-diverting channel 7 is also tilted; the water-blocking strip 10 is set vertically, and the water-blocking strip 10 is a rubber water-blocking strip.

[0053] It should also be noted that the original insulating sealing ring 4 on the housing 1 can be further sealed.

[0054] In one embodiment, the side wall of the housing 1 is provided with a mounting groove 9 with an opening at the lower end. The width of the mounting groove 9 is greater than the width of the water-blocking strip 10, and the length of the mounting groove 9 matches the length of the water-blocking strip 10. The water-blocking strip 10 is fixedly connected to the side of the mounting groove 9 away from the water-blocking block 6.

[0055] It is understandable that, such as Figure 9 As shown, the side of the mounting groove 9 not connected to the water-blocking strip 10 can serve as a drainage channel to promptly discharge the water flowing into the mounting groove 9, thereby preventing excessive water accumulation in the mounting groove 9 from affecting the water-blocking effect of the water-blocking strip 10, and thus preventing water from entering the interior of the flip cover 2.

[0056] In one embodiment, such as Figure 10 As shown, a limiting boss 14 is provided in the mounting groove 9, and a first pressure plate 11 is screwed into the mounting groove 9. The side of the water-blocking strip 10 away from the water-blocking block 6 and the limiting boss 14 are both located between the first pressure plate 11 and the bottom of the mounting groove 9. The height of the limiting boss 14 matches the thickness of the water-blocking strip 10.

[0057] It is understandable that by adjusting the distance between the first pressure plate 11 and the bottom of the mounting groove 9, the pressure applied to the water-blocking strip 10 can be adjusted so that the edge of the water-blocking strip 10 is raised and tightly attached to the flip cover 2; the limiting boss 14 can restrict the position of the first pressure plate 11 to avoid the water-blocking strip 10 being too tightly attached to the flip cover 2 due to excessive pressure from the first pressure plate 11, thereby preventing the water-blocking strip 10 from affecting the opening and closing of the flip cover 2.

[0058] In one embodiment, the water-blocking strip 10 is provided with a first connecting hole 1001, which is sleeved on the limiting boss 14.

[0059] It is understandable that the water-blocking strip 10 can be mounted on the limiting boss 14 by relying on the first connecting hole 1001 thereon, which is conducive to the installation of the water-blocking strip 10, and the limiting boss 14 can restrict the position of the water-blocking strip 10.

[0060] In one embodiment, the limiting boss 14 is provided with a first threaded hole 1401, and the first pressure plate 11 is provided with a first countersunk hole 1101 for installing a first countersunk screw 15. The screw of the first countersunk screw 15 passes through the first countersunk hole 1101 and is threadedly connected to the first threaded hole 1401.

[0061] It is understandable that both the water-blocking strip 10 and the first pressure plate 11 can be fastened to the limiting boss 14 by the first countersunk screw 15, and rotating the first countersunk screw 15 can adjust the pressure applied to the water-blocking strip 10 by the first pressure plate 11, thereby adjusting the tightness between the water-blocking strip 10 and the flip cover 2; in addition, the first countersunk hole 1101 is a reserved installation position for the first countersunk screw 15, which can prevent the opening or closing of the flip cover 2 from being affected by the first countersunk screw 15 being exposed on the first pressure plate 11.

[0062] It should be noted that when the first pressure plate 11 excessively presses the water-blocking strip 10, the rubber of the water-blocking strip 10 will overflow. The overflowing part will fully press against the flip cover 2, which will increase the friction between the flip cover 2 and the water-blocking strip 10, thereby affecting the opening and closing of the flip cover 2.

[0063] In one embodiment, such as Figure 9 , Figure 11 and Figure 12 As shown, a dustproof sheet 12 is fixedly connected to the bottom of the housing 1. One side of the dustproof sheet 12 is located at the lower end of the mounting groove 9, and the side of the dustproof sheet 12 abuts against the side of the flip cover 2 near the mounting groove 9.

[0064] It is understandable that since there is a cavity 20 between the flip cover 2, the shell 1, the water baffle 10 and the first pressure plate 11, and the lower end of the mounting groove 9 is provided with an opening, a dustproof sheet 12 is provided to cover the lower end of the cavity 20 to prevent dust and other debris from entering the cavity 20 or the interior of the flip cover 2.

[0065] It should be noted that the dust cover 12 is made of rubber and its compression is less than 0.5mm.

[0066] In one embodiment, such as Figure 9 As shown, a drain outlet 13 is provided at the bottom of the side of the mounting groove 9 away from the water-blocking strip 10.

[0067] Understandably, since the dust cover 12 will cover the bottom of the mounting groove 9, the drain outlet 13 can be used to drain the water flow at the bottom of the mounting groove 9 in a timely manner.

[0068] It should be noted that the drain outlet 13 only needs to be able to drain a small amount of water from the installation groove, so the size of the drain outlet 13 does not need to be very large, and the drain outlet 13 has little impact on the dustproof effect.

[0069] In one embodiment, a limiting washer 17 is connected to the bottom of the housing 1, and a second pressure plate 18 is screwed to the bottom of the housing 1. The side of the dustproof sheet 12 away from the flip cover 2 and the limiting washer 17 are both located between the housing 1 and the second pressure plate 18. The thickness of the limiting washer 17 matches the thickness of the dustproof sheet 12.

[0070] It is understandable that by adjusting the distance between the second pressure plate 18 and the bottom of the housing 1, the pressure applied to the dustproof sheet 12 can be adjusted so that the dustproof sheet 12 is tightly attached to the inside of the flip cover 2; the limiting washer 17 can restrict the position of the second pressure plate 18 to avoid the dustproof sheet 12 being too tightly attached to the flip cover 2 due to excessive compression by the second pressure plate 18, thereby preventing the dustproof sheet 12 from affecting the opening and closing of the flip cover 2.

[0071] It should be noted that when the second pressure plate 18 excessively squeezes the dust cover 12, the rubber of the dust cover 12 will overflow. The overflowing part will fully squeeze the flip cover 2, which will increase the friction between the flip cover 2 and the dust cover 12, thereby affecting the opening and closing of the flip cover 2.

[0072] In one embodiment, the dustproof sheet 12 is provided with a second connection hole 1201, which is fitted onto the limiting washer 17.

[0073] It is understandable that the dustproof sheet 12 can be mounted on the limiting washer 17 by means of the second connecting hole 1201 thereon, which is conducive to the positioning and installation of the dustproof sheet 12, and the limiting washer 17 can restrict the position of the dustproof sheet 12.

[0074] In one embodiment, the limiting washer 17 is provided with a second threaded hole 16, and the second pressure plate 18 is provided with a second countersunk hole 1801 for installing a second countersunk screw 19. The screw of the second countersunk screw 19 passes through the second countersunk hole 1801 and the limiting washer 17 in sequence and is threadedly connected to the second threaded hole 16.

[0075] It is understandable that the dust cover 12, the limiting washer 17, and the second pressure plate 18 can all be fastened to the housing 1 by the second countersunk screw 19, and rotating the second countersunk screw 19 can adjust the pressure applied to the dust cover 12 by the second pressure plate 18, thereby adjusting the tightness between the dust cover 12 and the flip cover 2.

[0076] In the description of this invention, it should be understood that the terms "upper", "lower", "bottom", "top", "front", "rear", "inner", "outer", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0077] While the invention has been described herein with reference to specific embodiments, it should be understood that these embodiments are merely examples of the principles and applications of the invention. Therefore, it should be understood that many modifications can be made to the exemplary embodiments, and other arrangements can be designed without departing from the spirit and scope of the invention as defined by the appended claims. It should be understood that different dependent claims and features described herein can be combined in ways different from those described in the original claims. It is also understood that features described in conjunction with individual embodiments can be used in other described embodiments.

Claims

1. A bottom-mounted electric coupler protection structure for preventing water from entering the flip cover (2) along the side wall of the housing (1), characterized in that, include: A water-blocking block (6) is provided on the side of the housing (1). The water-blocking block (6) extends from the upper part of the housing (1) to the lower part of the housing (1). The water-blocking block (6) is located above the flip cover (2). A water-blocking plate (8) is provided on the side of the water-blocking block (6) away from the housing (1). The water-blocking plate (8) is located on the side of the flip cover (2). A water-guiding groove (7) is provided at the upper end of the water-blocking block (6) along the length direction. A water-blocking strip (10) is fixedly connected to the side wall of the housing (1). The water-blocking strip (10) extends from the upper part of the housing (1) to the lower part of the housing (1). The water-blocking strip (10) is located between the housing (1) and the flip cover (2). The side wall of the housing (1) is provided with a mounting groove (9) with an opening at the lower end. The width of the mounting groove (9) is greater than the width of the water-blocking strip (10). The length of the mounting groove (9) matches the length of the water-blocking strip (10). The water-blocking strip (10) is fixedly connected to the side of the mounting groove (9) away from the water-blocking block (6). A limiting boss (14) is provided in the mounting groove (9). A first pressure plate (11) is screwed into the mounting groove (9). The side of the water-blocking strip (10) away from the water-blocking block (6) and the limiting boss (14) are both located between the first pressure plate (11) and the bottom of the mounting groove (9). The height of the limiting boss (14) matches the thickness of the water-blocking strip (10).

2. The under-mounted electric coupler protection structure according to claim 1, characterized in that, The water-blocking strip (10) is provided with a first connecting hole (1001), which is sleeved on the limiting boss (14).

3. The under-mounted electric coupler protection structure according to claim 2, characterized in that, The limiting boss (14) is provided with a first threaded hole (1401), and the first pressure plate (11) is provided with a first countersunk hole (1101) for installing a first countersunk screw (15). The screw of the first countersunk screw (15) passes through the first countersunk hole (1101) and is threadedly connected to the first threaded hole (1401).

4. The under-mounted electric coupler protection structure according to claim 1, characterized in that, A dustproof sheet (12) is fixedly connected to the bottom of the housing (1). One side of the dustproof sheet (12) is located at the lower end of the mounting groove (9), and the side of the dustproof sheet (12) abuts against the side of the flip cover (2) near the mounting groove (9).

5. The under-mounted electric coupler protection structure according to claim 4, characterized in that, A drain outlet (13) is provided at the bottom of the side of the mounting groove (9) away from the water-blocking strip (10).

6. The under-mounted electric coupler protection structure according to claim 4, characterized in that, The bottom of the housing (1) is connected to a limiting washer (17), and the bottom of the housing (1) is screwed to a second pressure plate (18). The side of the dustproof sheet (12) away from the flip cover (2) and the limiting washer (17) are both located between the housing (1) and the second pressure plate (18). The thickness of the limiting washer (17) matches the thickness of the dustproof sheet (12).

7. The under-mounted electric coupler protection structure according to claim 6, characterized in that, The dustproof sheet (12) is provided with a second connecting hole (1201), and the second connecting hole (1201) is fitted onto the limiting washer (17).

8. The under-mounted electric coupler protection structure according to claim 7, characterized in that, The limiting washer (17) is provided with a second threaded hole (16), and the second pressure plate (18) is provided with a second countersunk hole (1801) for installing a second countersunk screw (19). The screw of the second countersunk screw (19) passes through the second countersunk hole (1801) and the limiting washer (17) in sequence and is threadedly connected to the second threaded hole (16).

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