Mounting and pressing structure of automobile indoor lamp

Abstract

The utility model discloses a mounting and compressing structure of an automobile interior lamp, which relates to the technical field of automobile accessory assembly, and comprises a reflector, a circuit board and a rear cover, a plurality of LED lamps are mounted on the circuit board, the circuit board is mounted between the reflector and the rear cover and compressed, a compressing rib is arranged on the contact surface of the reflector and the circuit board, and the LED lamps are mounted on the compressing rib. The contact surface of the rear cover and the circuit board is provided with supporting ribs which are aligned with the pressing ribs in a staggered manner, and the supporting ribs are used for ensuring stable pressing between the reflector and the circuit board. According to the utility model, the circuit board is effectively pressed between the reflecting mirror and the rear cover by arranging the pressing rib on the contact surface of the reflecting mirror and the circuit board and arranging the supporting rib which is staggered and aligned with the pressing rib on the rear cover, so that the circuit board can be effectively pressed between the reflecting mirror and the rear cover only by screwing a screw on one side of the reflecting mirror for installation and locking, the number of parts is reduced, and each part is effectively pressed; the assembly risk is reduced, the production efficiency is greatly improved, and meanwhile the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts assembly, and particularly relates to an installation and pressing structure for an automobile interior lamp. Background Art

[0002] At present, for the interior lamps inside automobiles on the market, the light sources mostly adopt the form of LEDs, and the lighting implementation method is the mirror reflection type. When installing the existing LED lamps, the assembly and pressing of structures such as the rear cover, light distribution mirror, reflector, and circuit board are completed by the method of locking with screws on both sides. This installation structure uses a large number of components, and defects such as misassembly, missing assembly, and incomplete assembly are likely to occur. Moreover, the process is complex and the assembly efficiency is low. Content of the Utility Model

[0003] Aiming at the deficiencies of the above-mentioned existing technologies, the utility model provides an installation and pressing structure for an automobile interior lamp, which can reduce the use of components, reduce the assembly risk, improve the production efficiency and product quality, and at the same time reduce the cost on the premise of ensuring the product performance.

[0004] In order to achieve the above purpose, the present model adopts the following technical solutions:

[0005] An installation and pressing structure for an automobile interior lamp includes a reflector, a circuit board, and a rear cover. A plurality of LED lamps are installed on the circuit board. The circuit board is installed between the reflector and the rear cover and is pressed tightly. Pressing ribs are provided on the contact surface between the reflector and the circuit board, and supporting ribs that are misaligned and aligned with the pressing ribs are provided on the contact surface between the rear cover and the circuit board to ensure firm pressing between the reflector and the circuit board.

[0006] As a further implementation method, a plurality of locking columns are provided on the reflector. The locking columns pass through the circuit board and cooperate with the rear cover.

[0007] As a further implementation method, bolt holes are opened at positions corresponding to the locking columns on the rear cover, and screws are provided on the back surface of the rear cover. The screws pass through the bolt holes and are driven into the locking columns to tightly lock the reflector, the circuit board, and the rear cover.

[0008] As a further implementation method, it further includes a light distribution mirror. The light distribution mirror is installed on the bottom surface of the reflector, and the light distribution mirror is welded to the reflector.

[0009] As a further implementation method, the light distribution mirror and the reflector are fixed by segmented welding, which can improve the production efficiency and at the same time ensure the product quality.

[0010] As a further implementation method, positioning blocks are provided at the bottom edge of the reflector, and the positioning blocks are used for positioning in cooperation with the light distribution mirror.

[0011] As a further implementation method, positioning posts are provided on the mirror, and the circuit board is installed on the top surface of the mirror through the positioning posts to ensure accurate positioning.

[0012] As a further implementation method, positioning blind holes are machined on the bottom surface of the rear cover, and the positioning posts pass through the circuit board and are inserted into the positioning blind holes.

[0013] As a further implementation method, the positioning blind holes include a main positioning blind hole and an auxiliary positioning blind hole. The main positioning blind hole is a circular hole, and the auxiliary positioning blind hole is a long groove type. The circumferential gap between the main positioning blind hole and the positioning post is 0.1 - 0.2 mm, and the circumferential gap between the narrow side of the long groove of the auxiliary positioning blind hole and the mirror is 0.1 - 0.2 mm.

[0014] As a further implementation method, the rear cover and the circuit board are in interference fit to ensure firm clamping.

[0015] As a further implementation method, a plurality of mounting buckles are fixedly installed on the edge of the mirror for connecting the interior lamp to the vehicle body.

[0016] Adopting the above technical solutions, the beneficial effects of the present utility model are as follows:

[0017] 1. By providing pressing ribs on the contact surface between the mirror and the circuit board and providing supporting ribs on the rear cover that are offset and aligned with the pressing ribs, the circuit board is effectively pressed between the mirror and the rear cover. In this way, only screws need to be installed and tightened on one side of the mirror; compared with the traditional method of requiring screws to be installed on both the front and back sides of the rear cover for fixation, the present utility model reduces the usage of components and effectively presses each component, reduces the assembly risk, greatly improves the production efficiency, and simultaneously reduces the production cost.

[0018] 2. By matching the positioning posts on the mirror with the blind holes on the circuit board, the circuit board can be quickly and accurately positioned, improving the product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings forming a part of this specification are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model.

[0020] Figure 1 is the schematic assembly structure diagram of the embodiment of the present utility model;

[0021] Figure 2 is the schematic cross-sectional view of the embodiment of the present utility model;

[0022] Figure 3 is the schematic structure diagram of the mirror of the embodiment of the present utility modelFigure 1 ;

[0023] Figure 4 Schematic diagram of the mirror structure according to an embodiment of the present utility model Figure 2 ;

[0024] Figure 5 Schematic diagram of the circuit board structure according to an embodiment of the present utility model;

[0025] Figure 6 Schematic diagram of the rear cover structure according to an embodiment of the present utility model.

[0026] In the figure: 1, light distribution lens; 2, mirror; 3, circuit board; 4, rear cover; 5, pressing rib, 6, supporting rib; 7, positioning post; 8, positioning blind hole; 81, main positioning blind hole; 82, auxiliary positioning blind hole; 9, locking post; 10, screw; 11, installation buckle; 12, LED lamp; 13, positioning block; 14, bolt hole. Specific embodiments

[0027] It should be noted that the following detailed descriptions are all illustrative and are intended to provide further descriptions of the present utility model. Unless otherwise specified, all technical and scientific terms used in the present utility model have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present utility model belongs.

[0028] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present utility model. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0029] The content not described in detail in the embodiments of the present utility model belongs to the prior art well known to those of ordinary skill in the art. For the embodiments of the present utility model where specific conditions are not indicated, they are carried out according to the conventional conditions in the art or the conditions recommended by the manufacturer. For the reagents or instruments used in the embodiments of the present utility model where the manufacturer is not indicated, they are all conventional products that can be obtained through commercial purchase.

[0030] Embodiment 1

[0031] In a typical embodiment of the present application, a mounting and pressing structure for an interior car light is provided, as Figure 1As shown, it includes a reflector 2, a circuit board 3, and a rear cover 4. A number of LED lights 12 are installed on the circuit board 3. The circuit board 3 is installed between the reflector 2 and the rear cover 4 and is pressed tightly. On the contact surface between the reflector 2 and the circuit board 3, there are pressing ribs 5. On the contact surface between the rear cover 4 and the circuit board 3, there are support ribs 6 that are arranged in a staggered and aligned manner with the pressing ribs, for ensuring firm pressing between the reflector and the circuit board.

[0032] Specifically, as Figure 1 shown, the circuit board 3 is installed between the reflector 2 and the rear cover 4. A number of LED lights 12 are installed on the end face of the circuit board 3 facing the reflector. In order to press the circuit board tightly between the reflector and the rear cover and reduce the usage of components, in this embodiment, on the end face of the reflector facing the circuit board, there is a ring of pressing ribs 5, as Figure 3 shown, the pressing ribs 5 are discontinuously arranged, surrounding the outermost layer of LED lights 12 on the circuit board in a ring. The thickness of the pressing ribs 5 is 1 - 1.5 mm, and the width is 1 - 1.5 mm, contacting the side of the circuit board 3 where the LED lights are installed. At the same time, on the end face of the rear cover 4 facing the circuit board 3, there is a ring of support ribs 6, as Figure 5 shown, the support ribs 6 are also discontinuously and segmentally arranged, and are arranged in a staggered and aligned manner with the pressing ribs 5 to ensure firm pressing of the three components of the reflector 2, the circuit board 3, and the rear cover 4. In this embodiment, the thickness of the pressing ribs 5 is 1 mm, and the width is 1.2 mm, which can save space, and at the same time ensure uniform distribution of the upper and lower rib positions, ensure uniform force, and achieve firm pressing.

[0033] Specifically, as Figures 2 - 6 shown, on the side of the reflector 2 facing the circuit board, there are a number of locking posts 9. The locking posts 9 pass through the through holes on the circuit board 3 and cooperate with the rear cover. At the corresponding positions on the rear cover 4, there are bolt holes 14 that cooperate with the locking posts. On the back of the rear cover, there are screws 10. The screws 10 pass through the bolt holes 14 and are driven into the locking posts 9 for fastening. The number of locking posts 9 is arranged in a circle around the edge of the reflector 2 to achieve tight locking of the reflector, the circuit board, and the rear cover. As Figure 3 shown, in this embodiment, 6 locking posts 9 are fixedly arranged outside the pressing ribs on the reflector 2. The 6 locking posts 9 surround the edge of the reflector in a circle. The free ends of the locking posts 9 are hollow structures for the screws 10 to be driven in for locking. As Figures 5 - 6 shown, on the rear cover 4, there are bolt holes 14 at the corresponding positions of the locking posts 9, and through holes are provided on the circuit board 3 at corresponding positions; the locking posts 9 pass through the through holes on the circuit board, and the screws 10 are inserted into the locking posts 9 from the outer end of the rear cover 4 through the bolt holes 14 for fastening. The cooperation between the screws 10 and the locking posts 9 realizes effective locking of the interior car light. At the same time, only screws need to be driven on the back of the rear cover for fixation, greatly reducing the number of components, and being easy to position, reducing the assembly risk, and being beneficial to improving the assembly efficiency and product quality.

[0034] Among them, the rear cover 4 and the circuit board 3 are in interference fit to ensure that the circuit board is firmly pressed. In this embodiment, the interference fit is set to 0.2 mm.

[0035] Specifically, it further includes a light distribution lens 1, and the light distribution lens 1 is installed on the bottom surface of the reflector 2, and the light distribution lens 1 is welded to the reflector 2. In this embodiment, the light distribution lens 1 and the reflector 2 are fixed by segmented welding, which improves production efficiency, ensures product quality, and is beneficial to reducing energy consumption and equipment investment.

[0036] Such as Figure 3 shown, a positioning block 13 is provided at the bottom edge of the bottom surface of the reflector 2, and the positioning block can be inserted into the slot hole at the top end of the light distribution lens. The reflector 2 is positioned in cooperation with the light distribution lens 1 through the positioning block 13.

[0037] Specifically, in order to accurately and conveniently position during installation, positioning posts 7 are provided on the reflector 2, and the circuit board 3 is installed on the top surface of the reflector 2 through the positioning posts 7. At the same time, a positioning blind hole 8 is machined on the bottom surface of the rear cover 4, and the positioning post 7 passes through the circuit board 3 and is inserted into the positioning blind hole 8. Such as Figures 3 - 5 shown, two positioning posts 7 are provided, which are installed on both sides of the middle position of the reflector 2 and are located within the pressing rib 5 circle, and are used to accurately position the installation position of the circuit board. Through holes corresponding to the positioning posts are provided at the corresponding positions on the circuit board. During installation, the circuit board is introduced onto the positioning posts through the through holes, which can limit the horizontal movement of the circuit board. At the corresponding position of the rear cover 4, a positioning blind hole 8 that cooperates with the positioning post is provided. Such as Figure 5 shown, the positioning blind hole 8 includes a main positioning blind hole 81 and an auxiliary positioning blind hole 82. The main positioning blind hole 81 and the auxiliary positioning blind hole 82 respectively cooperate with the two positioning posts 7. Among them, the main positioning blind hole 81 is designed as a circular hole. Considering that if the unilateral gap between the circular positioning hole and the positioning post is too large, the movement amount and rotation will be large, which will lead to inaccurate positioning and affect the fitting clearance of other components. Therefore, the unilateral clearance of the circumference of the main positioning blind hole 81 cooperating with the positioning post 7 of the reflector is controlled within 0.1 - 0.2 mm. The auxiliary positioning blind hole 82 is a long slot type, and the unilateral clearance of the circumference of the narrow side of the long slot of the auxiliary positioning blind hole 82 cooperating with the positioning post 7 is controlled within 0.1 - 0.2 mm to ensure accurate and effective positioning.

[0038] In addition, such as Figure 1 、 3 、4 shown, a plurality of mounting buckles 11 are fixedly installed at the edge of the reflector 4, and the interior lamp can be conveniently and quickly connected to the vehicle body.

[0039] The automotive interior lamp mounting and pressing structure provided in this embodiment can reduce the use of components, reduce assembly risks, effectively improve production efficiency and product quality on the premise of ensuring product performance; at the same time, it can reduce production costs.

[0040] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Those of ordinary skill in the art should understand that the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An installation and pressing structure for an interior car light, characterized in that, It includes a reflector, a circuit board and a rear cover. A number of LED lights are installed on the circuit board. The circuit board is installed between the reflector and the rear cover and pressed tightly. Compression ribs are provided on the contact surface between the reflector and the circuit board. Support ribs that are misaligned and aligned with the compression ribs are provided on the contact surface between the rear cover and the circuit board to ensure firm pressing between the reflector and the circuit board.

2. The installation and pressing structure of an interior car light according to claim 1, characterized in that, A number of locking columns are provided on the reflector. The locking columns pass through the circuit board and cooperate with the rear cover.

3. The installation and pressing structure of an interior car light according to claim 2, characterized in that Bolt holes are provided at positions corresponding to the locking columns on the rear cover. Screws are provided on the back of the rear cover. The screws pass through the bolt holes and are driven into the locking columns.

4. The mounting and pressing structure of an interior car light according to claim 3, characterized in that, It further includes a light distribution lens. The light distribution lens is installed on the bottom surface of the reflector. The light distribution lens is welded to the reflector; the light distribution lens and the reflector are fixed by segmented welding.

5. The installation and pressing structure of an interior car light according to claim 4, characterized in that, Positioning blocks are provided at the bottom edge of the reflector, and positioning is performed by cooperating the positioning blocks with the light distribution lens.

6. The installation and pressing structure of an interior car light according to claim 1, characterized in that, Positioning columns are provided on the reflector. The circuit board is installed on the top surface of the reflector through the positioning columns.

7. The installation and pressing structure of an interior car light according to claim 6, characterized in that, Positioning blind holes are machined on the bottom surface of the rear cover. The positioning columns pass through the circuit board and are inserted into the positioning blind holes.

8. The installation and pressing structure of an interior car light according to claim 7, characterized in that, The positioning blind holes include a main positioning blind hole and an auxiliary positioning blind hole. The main positioning blind hole is a circular hole, and the auxiliary positioning blind hole is a long groove type. The circumferential clearance between the main positioning blind hole and the positioning column is 0.1 - 0.2 mm.

9. The installation and pressing structure of an interior car light according to claim 1, characterized in that, The rear cover and the circuit board are in interference fit.

10. The installation and pressing structure of an interior car light according to claim 1, characterized in that, A number of installation buckles are fixedly installed on the edge of the reflector.

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