Sealing ring anti-falling structure of automobile headlamp controller and automobile headlamp

Abstract

The utility model discloses a sealing ring anti-falling structure of an automobile headlamp controller and an automobile headlamp. The sealing ring anti-drop structure of the automobile headlamp controller comprises a controller body, a connector shell and a sealing ring, the connector shell is connected with the controller body; an annular column is arranged on the top wall of the controller body and surrounds the connector shell. The sealing ring is arranged on the periphery of the annular column in a sleeving mode, the connector shell is provided with a sealing ring limiting part, and the sealing ring limiting part abuts against the top end of the sealing ring. According to the utility model, the sealing ring can be prevented from falling off due to friction force between the sealing ring and the inner circumferential surface of the automobile headlamp interface when the automobile headlamp controller and the automobile headlamp are detached, and the detaching difficulty is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a car's headlamp. BACKGROUND

[0002] In the existing car headlamp controller product, a sealing ring is used to ensure the sealing between the car headlamp controller and the car headlamp. When the car headlamp controller is detached from the car headlamp, the sealing ring will fall off into the car headlamp due to the friction between the sealing ring and the inner circumferential surface of the car headlamp interface, increasing the difficulty and time cost of detaching the car headlamp controller. SUMMARY

[0003] The utility model provides a sealing ring anti-falling structure of car headlamp controller, which can prevent the sealing ring from falling off due to the friction between the sealing ring and the inner circumferential surface of the car headlamp interface when the car headlamp controller is detached from the car headlamp.

[0004] The utility model provides a car headlamp.

[0005] According to the first aspect of the utility model, a sealing ring anti-falling structure of car headlamp controller is provided, which comprises a controller body, a connector shell and a sealing ring. The connector shell is connected with the controller body. The top wall of the controller body is provided with an annular column, which surrounds the connector shell. The sealing ring is sleeved on the outer periphery of the annular column. The connector shell is provided with a sealing ring limiting part, which abuts against the top end of the sealing ring.

[0006] Preferably, the material of the connector shell is plastic, and the sealing ring limiting part is integrally injection molded with the connector shell.

[0007] Preferably, the top end of the sealing ring is higher than the top end of the annular column.

[0008] According to the second aspect of the utility model, a car headlamp is provided, which comprises a car headlamp interface and the aforementioned sealing ring anti-falling structure of car headlamp controller. The outer circumferential surface of the sealing ring of the sealing ring anti-falling structure abuts against the inner circumferential surface of the car headlamp interface.

[0009] The utility model has at least the following advantages and characteristics:

[0010] 1. The sealing ring limiting part of the connector shell of the utility model embodiment abuts against the top end of the sealing ring, ensuring that the sealing ring will not fall off due to the friction between the sealing ring and the inner circumferential surface of the car headlamp interface when the car headlamp controller is detached from the car headlamp, reducing the difficulty of detaching the car headlamp controller and saving the detaching time.

[0011] 2. The connector shell of the embodiment of the utility model is made of plastic, the sealing ring limiting portion and the connector shell are manufactured by the way of integral injection molding, the complexity of the injection mold is low, and the manufacturing cost is not increased. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 The structure diagram of the controller body provided with the hook for preventing the sealing ring from falling off is shown.

[0013] Figure 2 The explosion diagram of the sealing ring anti-falling-off structure of the automobile headlamp controller according to the first embodiment of the utility model is shown.

[0014] Figure 3 The assembly diagram of the sealing ring anti-falling-off structure of the automobile headlamp controller according to the first embodiment of the utility model is shown.

[0015] Figure 4 The top view diagram of the sealing ring anti-falling-off structure of the automobile headlamp controller according to the first embodiment of the utility model is shown.

[0016] Figure 5 The B-B sectional view diagram of the automobile headlamp connector is shown. Figure 4

[0017] The appearance diagram of the automobile headlamp connector is shown. Figure 6

[0018] The assembly diagram of the sealing ring anti-falling-off structure of the automobile headlamp controller according to the first embodiment of the utility model and the automobile headlamp connector is shown. Figure 7

[0019] The sectional view diagram of the sealing ring anti-falling-off structure of the automobile headlamp controller according to the second embodiment of the utility model is shown. Figure 8

[0020] The sectional view diagram of the sealing ring anti-falling-off structure of the automobile headlamp controller according to the third embodiment of the utility model is shown. Figure 9 DETAILED DESCRIPTION

[0021] In order to make the skilled in the art better understand the technical scheme of the utility model, the utility model is explained in detail below in combination with the drawings and specific embodiments.

[0022] Most of the controller bodies of the automobile headlamp controllers have a large heat dissipation requirement, in order to meet the heat dissipation requirement, the controller body needs to be made of metal material, and plastic material cannot be used. Figure 1 As shown in the figure, if the hook 19C (in the figure) for preventing the sealing ring from falling off is added to the controller body 1C made of metal material, Figure 1 ​In order to realize the product ejection, the slider needs to be added in the existing controller body metal mold, which will cause adverse effects on the mold cavity number and service life, and increase the manufacturing cost.

[0023] Figures 2 to 5 The sealing ring anti-falling structure of the automobile headlamp controller according to the first embodiment of the present application is shown, please refer to Figures 2 to 5 The sealing ring anti-falling structure of the automobile headlamp controller according to the first embodiment of the present application comprises a controller body 1, a connector shell 2 and a sealing ring 3.

[0024] The controller body 1 comprises an upper shell 1a and a base 1b, and the upper shell 1a and the base 1b are connected to each other and jointly define an inner cavity 10. A PCBA circuit board 4 is arranged in the inner cavity 10. A top wall 11 (i.e. the top wall of the upper shell 1a) of the controller body 1 is provided with a through hole 110, and the lower part of the connector shell 2 extends into the through hole 110. In the present embodiment, the inner wall of the through hole 110 is provided with a stepped surface 111, and the bottom of the connector shell 2 is pressed on the stepped surface 111. A plurality of positioning holes (not shown in the figure) are arranged on the PCBA circuit board 4, and the bottom of the connector shell 2 is provided with a plurality of positioning columns 25 which are respectively matched with the plurality of positioning holes, each positioning column 25 is inserted into the corresponding positioning hole to limit the movement of the connector shell 2 in the X-axis direction and the Y-axis direction. Optionally, the number of the positioning columns 25 and the positioning holes is two, but is not limited thereto.

[0025] The top wall 11 of the controller body 1 is further provided with an annular column 13 which surrounds the connector shell 2, and the sealing ring 3 is sleeved on the outer periphery of the annular column 13. When the automobile headlamp controller is assembled on the automobile headlamp, as shown in Figure 6 and Figure 7 , the outer peripheral surface of the sealing ring 3 abuts against the inner peripheral surface 74 of the automobile headlamp interface 7 to realize the sealing between the automobile headlamp controller and the automobile headlamp interface. In the present embodiment, the outer peripheral surface of the sealing ring 3 is provided with an annular protrusion 34 which extends along the circumference of the sealing ring 3, and the top end of the annular protrusion 34 abuts against the inner peripheral surface 74 of the automobile headlamp interface 7. The number of the annular protrusions 34 can be one or more, and in the example shown in the figure, the number of the annular protrusions 34 is three.

[0026] The connector shell 2 is provided with a sealing ring limiting portion 2a which abuts against the top end of the sealing ring 3 to prevent the phenomenon of the falling of the sealing ring 3 due to the frictional force between the sealing ring and the inner peripheral surface of the automobile headlamp interface when the automobile headlamp controller is disassembled. Preferably, the top end of the sealing ring 3 is higher than the top end of the annular column 11.

[0027] In the embodiment, the sealing ring limiting part 2a comprises a plurality of blocking arms 21, each of which is Z-shaped and comprises an upper horizontal arm part 211, a lower horizontal arm part 212 and a vertical arm part 213. The first end of the lower horizontal arm part 212 is connected to the side surface of the connector housing 2, and the second end of the lower horizontal arm part 212 is connected to the bottom end of the vertical arm part 213. The first end of the upper horizontal arm part 211 is connected to the top end of the vertical arm part 213, and the second end of the upper horizontal arm part 211 abuts against the top end of the sealing ring 3.

[0028] The blocking arms 21 are arranged in a Z shape to avoid the operating track of the external filling device when filling sealant between the connector housing 2 and the through hole 110, thereby facilitating the automation of sealant filling. In the embodiment, the top wall 11 of the controller body 1 is provided with grooves 12 equal in number to the blocking arms 21, and each groove 12 penetrates the through hole 110. The first end of the lower horizontal arm part 212 of each blocking arm 21 is connected to the side surface of the lower part of the connector housing 2, and the lower horizontal arm part 212 of each blocking arm 21 is accommodated in the corresponding groove 12. The lower horizontal arm part 212 of at least some of the plurality of blocking arms 21 is detachably connected to the top wall 11 of the controller body 1 by a fastener 5. The fastener 5 includes, but is not limited to, a screw, etc. In the example shown in the figure, the number of blocking arms 21 is four, and the four blocking arms 21 are uniformly distributed along the circumferential direction of the controller body 1. The lower horizontal arm part 212 of two of the blocking arms 21 is screw-connected to the top wall 11 of the controller body 1 by a self-tapping screw penetrating the lower horizontal arm part 212, thereby limiting the movement of the connector housing 2 in the Z-axis direction. The sealant 6 is filled in the gap between the connector housing 1 and the through hole 11 and on the top surface of the lower horizontal arm part 212 of each blocking arm 21, covering the fastener 5.

[0029] In some cases where sealant is not needed, the sealing ring limiting part 2a can also be arranged in other shapes, such as a ring arranged on the side surface of the connector housing 2 and extending in the circumferential direction, a plurality of blocking arms arranged on the side surface of the connector housing 2 and extending in the radial direction, etc.

[0030] In the embodiment, the material of the controller body 1 is metal, the material of the connector housing 2 is plastic, and the material of the sealing ring 3 is silicone rubber. The aforementioned sealing ring limiting part 2a is integrally injection molded with the connector housing 2. Since the complexity of the injection mold is much lower than that of the metal mold, the manufacturing cost of the connector housing 2 with the injection molded sealing ring limiting part 2a is much lower than the cost of manufacturing the hook on the controller body.

[0031] To enhance the strength of the blocking arms 21 and ensure that the blocking arms 21 are not deformed when disassembled, the top of each blocking arm 21 is provided with a blocking arm reinforcing rib 214 on each side. Further, the side of the connector housing 2 is provided with a housing reinforcing rib 22 extending in the circumferential direction, and the first end of the lower horizontal arm portion 212 of each blocking arm 21 is connected to the housing reinforcing rib 22. Connecting the starting end of the blocking arm 21 to the housing reinforcing rib enhances the strength of the blocking arm 21. The end of each blocking arm 21 (the second end of the upper horizontal arm portion 211) is shaped like a sealing ring, and the end of each blocking arm 21 is inside the outer contour of the top surface of the sealing ring 3, which ensures that there is sufficient area to block the sealing ring and prevents the sealing ring from falling off when disassembled, and also ensures that there is no interference when the automobile headlamp interface is assembled.

[0032] When assembled, the sealing ring 3 is first assembled to the annular column 13 of the controller body 1, and then the connector housing 2 is assembled to the controller body 1 and fixed by the fastener 5. The four blocking arms 21 press against the top end of the sealing ring 3, which effectively prevents the automobile controller from falling off due to the frictional force between the sealing ring and the inner circumferential surface of the automobile headlamp interface when the automobile controller is disassembled from the automobile headlamp.

[0033] Figure 8 And Figure 9 The sealing ring anti-falling structure of the automobile headlamp controller according to the second embodiment and the third embodiment of the present application is shown. The main difference between the second embodiment and the third embodiment and the first embodiment is that, in the first embodiment, the sealing ring 3 includes an annular sealing ring body 3a and an annular flange 3b protruding radially inward from the top end of the sealing ring body 3a, the sealing ring body 3a is sleeved on the outer periphery of the annular column 13, the annular flange 3b presses against the top end of the annular column 13, and the sealing ring limiting portion 2a is pressed against the top surface of the annular flange 3b; in the second embodiment, the sealing ring 3 is annular and is sleeved on the outer periphery of the annular column 13, the top end of the sealing ring 3 is higher than the top end of the annular column 13, and the sealing ring limiting portion 2a is pressed against the top surface of the sealing ring 3; in the third embodiment, the sealing ring 3 includes an annular sealing ring body 3a, an annular flange 3b protruding radially inward from the top end of the sealing ring body 3a, and an inner ring 3c extending downward from the end of the annular flange 3b close to the connector housing 2, the sealing ring body 3a, the annular flange 3b, and the inner ring 3c together define an annular groove 3d, the sealing ring body 3a is sleeved on the outer periphery of the annular column 13, the top end of the annular column 13 is embedded in the annular groove 3d, and the sealing ring limiting portion 2a is pressed against the top surface of the annular flange 3b.

[0034] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application also intends to include these modifications and variations.

Claims

1. A sealing ring anti-detachment structure for an automotive headlight controller, comprising a controller body, a connector housing, and a sealing ring; the connector housing is connected to the controller body; the top wall of the controller body is provided with an annular post, the annular post surrounding the connector housing; the sealing ring is sleeved on the outer periphery of the annular post, characterized in that, The connector housing is provided with a sealing ring limiting part, which abuts against the top of the sealing ring.

2. The sealing ring anti-detachment structure of the automotive headlight controller according to claim 1, characterized in that, The top of the sealing ring is higher than the top of the annular post.

3. The sealing ring anti-detachment structure of the automotive headlight controller according to claim 1, characterized in that, The connector housing is made of plastic, and the sealing ring limiting part is integrally injection molded with the connector housing.

4. The sealing ring anti-detachment structure of the automotive headlight controller according to claim 1, characterized in that, The controller body is made of metal.

5. The sealing ring anti-detachment structure of the automotive headlight controller according to any one of claims 1 to 4, characterized in that, The sealing ring limiting part includes multiple stops, each stop being Z-shaped, including an upper horizontal arm, a lower horizontal arm, and a vertical arm; the first end of the lower horizontal arm is connected to the side of the connector housing, the second end of the lower horizontal arm is connected to the bottom end of the vertical arm; the first end of the upper horizontal arm is connected to the top end of the vertical arm, and the second end of the upper horizontal arm abuts against the top end of the sealing ring.

6. The sealing ring anti-detachment structure of the automotive headlight controller according to claim 5, characterized in that, The top wall of the controller body has a through hole and a number of grooves equal to the number of the stop arms. The lower part of the connector housing extends into the through hole, and one end of each groove passes through the through hole. The first end of the lower cross arm of each of the aforementioned stops is connected to the side of the lower part of the connector housing, and the lower cross arm of each of the aforementioned stops is accommodated in the corresponding groove.

7. The sealing ring anti-detachment structure of the automotive headlight controller according to claim 6, characterized in that, The lower cross arm portion of at least a portion of the multiple stop arms is detachably connected to the top wall of the controller body by fasteners.

8. The sealing ring anti-detachment structure of the automotive headlight controller according to claim 6, characterized in that, The gap between the connector housing and the through hole, as well as the top surface of the lower cross arm of each of the stops, are filled with sealant.

9. The sealing ring anti-detachment structure of the automotive headlight controller according to claim 5, characterized in that, The connector housing has a housing reinforcing rib extending circumferentially on its side, and the first end of the lower cross arm of each of the stop arms is connected to the housing reinforcing rib.

10. The sealing ring anti-detachment structure of the automotive headlight controller according to claim 1, characterized in that, The outer circumferential surface of the sealing ring is provided with an annular protrusion extending circumferentially along the sealing ring.

11. A car headlight, comprising a car headlight interface, characterized in that, The automotive headlight also includes a sealing ring anti-detachment structure for the automotive headlight controller as described in any one of claims 1 to 10, wherein the outer peripheral surface of the sealing ring of the sealing ring anti-detachment structure abuts against the inner peripheral surface of the automotive headlight interface.

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