A front cover alloy die-casting for automobile camera and its die-casting mold

Abstract

The present invention relates to the field of die-casting, and in particular to a front cover alloy die-casting for a car camera and its die-casting mold, comprising a front cover body and a plurality of limit plates, wherein a mounting cavity is provided in the middle of the front cover body; the plurality of limit plates are arranged in a circular array in the mounting cavity, and are connected to the front cover body, and are integrally located inside the front cover body, and a separation groove is formed between two adjacent limit plates, the limit plates are arranged in an arc-shaped structure, and a third groove is provided on the inner surface of the limit plates, and one end of the third groove passes through to the front end of the front cover body. One end of the third groove passes through to the front end of the front cover body, and cooperates with the separation groove to provide heat dissipation space for the rear end side of the camera, while the third groove provides heat dissipation space for the front end side of the camera, so that the heat generated on the surface of the camera during use can be naturally dissipated, and the heat is prevented from accumulating for a long time and affecting the use state and service life of the camera.

Description

Technical Field

[0001] The invention relates to the field of die casting, in particular to an alloy die casting of a front cover for an automobile camera and a die casting die thereof. Background Art

[0002] Die casting is a metal casting process that uses a mold cavity to apply high pressure to the molten metal. The mold is usually made of a stronger alloy, and the process is somewhat similar to injection molding.

[0003] Existing car camera housings are usually made of plastic or die-cast alloy parts, and the current common car camera housings are usually in a tight overall structure. Since the camera will generate heat after long-term use, this tight structure without gaps in the camera housing has poor heat dissipation effect. Long-term use may cause the camera to be in poor condition and reduce its service life. Summary of the invention

[0004] Based on this, it is necessary to provide a front cover alloy die-casting for a car camera and its die-casting mold to address the above-mentioned technical problems, so that the heat generated on the surface of the camera during use can be naturally dissipated, avoiding long-term accumulation of heat and affecting the use status and service life of the camera.

[0005] The present invention provides a front cover alloy die casting for an automobile camera, comprising:

[0006] The front cover body has a mounting cavity in the middle;

[0007] A plurality of limit plates are arranged in a circular array in the installation cavity, connected to the front cover body, and located as a whole inside the front cover body. A separation groove is formed between two adjacent limit plates. The limit plates are arranged in an arc-shaped structure, and a third groove is opened on the inner surface of the limit plate. One end of the third groove passes through to the front end of the front cover body.

[0008] In one of the embodiments, a plurality of limiting protrusions are arranged at intervals on the inner surface of the limiting plate along the central axis direction of the installation cavity, and the limiting protrusions are used to be snapped into the limiting grooves provided in the outer ring of the camera.

[0009] In one of the embodiments, the limiting protrusion is provided in an arc-shaped rod-shaped structure, and the limiting protrusion is located on a side of the inner surface of the limiting plate close to the front end of the front cover body.

[0010] In one of the embodiments, two first grooves are symmetrically formed at the front end of the front cover body, one end of the first groove passes through the installation cavity, and the other end of the first groove passes through the side end of the front cover body.

[0011] In one embodiment, a first through hole is formed on the bottom surface of the first groove, a positioning cylinder is disposed in the front cover body, and an open end of the positioning cylinder is connected to the first through hole.

[0012] In one of the embodiments, a second through hole is opened in the middle of the unopened end of the positioning tube, and a plurality of second grooves are opened at the connection between the first through hole and the bottom surface of the first groove, and the plurality of second grooves are arranged in a ring array.

[0013] In one of the embodiments, the unopened end of the positioning tube is further provided with a cutout, one side of the cutout coincides with the radius of the positioning tube, and the other side of the cutout is parallel to the bottom surface of the first groove.

[0014] In one embodiment, the cutout faces the limiting plate, and the two cutouts are symmetrically arranged.

[0015] In one of the embodiments, a cylindrical filter screen is installed in the positioning cylinder, a positioning block is provided at the open end of the cylindrical filter screen, and the positioning block is clamped in the second groove.

[0016] The present invention also provides a die-casting mold for a front cover alloy die-casting for an automobile camera, which is used to process the front cover alloy die-casting for an automobile camera as described in any of the above embodiments, and includes a fixed mold and a movable mold. The fixed mold is used to shape the front end face of the front cover alloy die-casting, and the movable mold is used to shape the inner surface of the front cover alloy die-casting. The front end face and the inner surface edge of the front cover alloy die-casting are connected.

[0017] The above-mentioned front cover alloy die-casting and die-casting mold for the automobile camera are taken out from the mold after the front cover alloy die-casting is completed, and then the front cover alloy die-casting is assembled with the shell alloy die-casting and the camera. After assembly, the rear end opening of the front cover alloy die-casting is joined with the front end opening of the shell alloy die-casting, the tail end of the camera is fixed in the shell alloy die-casting, and the head end of the camera is inserted between multiple limit plates. Since a separation groove is formed between two adjacent limit plates, the multiple limit plates arranged in a circular array can achieve the maximum degree of clamping and fixing of the camera while ensuring the heat dissipation of the camera edge, and a third groove is opened on the inner surface of the limit plate, which is used to fit the camera, and one end of the third groove passes through the front end of the front cover body, and cooperates with the separation groove to provide a heat dissipation space for the tail end side of the camera, while the third groove provides a heat dissipation space for the head end side of the camera, so that the heat generated on the surface of the camera during use can be naturally dissipated, avoiding the heat accumulation for a long time and affecting the use state and service life of the camera. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A schematic diagram of the structure of the front cover alloy die-casting provided by the present invention from a first perspective;

[0020] Figure 2 A schematic diagram of the structure of the front cover alloy die-casting provided by the present invention from a second viewing angle;

[0021] Figure 3 This is one of the planar schematic diagrams of the front cover alloy die casting provided by the present invention;

[0022] Figure 4 The second schematic plan view of the front cover alloy die casting provided by the present invention;

[0023] Figure 5 A schematic diagram of the structure of the cover alloy die casting provided by the present invention from a third viewing angle;

[0024] Figure 6 A schematic diagram of the airflow direction of the cover alloy die casting provided by the present invention.

[0025] Reference numerals:

[0026] 10. Camera; 11. Limiting groove; 100. Front cover body; 110. Mounting cavity; 120. Partitioning groove; 130. First groove; 140. First through hole; 150. Second groove; 200. Limiting plate; 210. Third groove; 300. Limiting protrusion; 400. Positioning cylinder; 410. Second through hole; 420. Incision. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] Combine the following Figures 1 to 6 The invention describes an alloy die-casting part of a front cover for a car camera and a die-casting mold thereof.

[0029] In one embodiment, a front cover alloy die-casting for a car camera includes a front cover body 100 and a plurality of limit plates 200; a mounting cavity 110 is provided in the middle of the front cover body 100; a plurality of limit plates 200 are arranged in a circular array in the mounting cavity 110, and are connected to the front cover body 100, and are integrally located inside the front cover body 100, a separation groove 120 is formed between two adjacent limit plates 200, the limit plates 200 are arranged in an arc-shaped structure, a third groove 210 is provided on the inner surface of the limit plates 200, and one end of the third groove 210 passes through to the front end of the front cover body 100.

[0030] The above-mentioned front cover alloy die-casting for automobile camera is taken out from the mold after the front cover alloy die-casting is completed, and then the front cover alloy die-casting is assembled with the shell alloy die-casting and the camera 10. After assembly, the rear end opening of the front cover alloy die-casting is engaged with the front end opening of the shell alloy die-casting, the tail end of the camera 10 is fixed in the shell alloy die-casting, and the head end of the camera 10 is inserted between multiple limit plates 200. Since a separation groove 120 is formed between two adjacent limit plates 200, the multiple limit plates 200 arranged in a ring array can ensure that the edge of the camera 10 The camera 10 can be fixed to the maximum extent under the condition of heat dissipation, and a third groove 210 is opened on the inner surface of the limiting plate 200, which is used to fit the camera 10, and one end of the third groove 210 passes through the front end of the front cover body 100, and cooperates with the partition groove 120 to provide a heat dissipation space for the rear end of the camera 10, while the third groove 210 provides a heat dissipation space for the front end of the camera 10, so that the heat generated on the surface of the camera 10 during use can be naturally dissipated, avoiding long-term accumulation of heat that affects the use status and service life of the camera 10.

[0031] In one embodiment, a plurality of limiting protrusions 300 are arranged at intervals on the inner surface of the limiting plate 200 along the central axis direction of the installation cavity 110 , and the limiting protrusions 300 are used to be snapped into the limiting grooves 11 opened on the outer circle of the camera 10 .

[0032] Specifically, in a conventional automobile camera 10, the head end of the camera 10 will be closely abutted against the hole opened on the front cover, so as to shoot outside. In this embodiment, in order to achieve heat dissipation and clamping, the fitting surface between the camera 10 and the plurality of limiting plates 200 is relatively large. In order to achieve a close connection between the two and prevent the camera 10 from shaking due to bumps during the operation of the car, a limiting protrusion 300 is provided on the inner surface of the limiting plate 200, and a limiting groove 11 corresponding to the limiting protrusion 300 is provided on the outer ring of the camera 10. It should be noted here that the limiting plate 200 of the front cover body 100 in this embodiment is set to be relatively thin, so that when the camera 10 is inserted into the front cover body 100, the limiting protrusions 300 on the plurality of limiting plates 200 can produce a slight deformation when contacting the outer ring of the camera 10 until the limiting protrusion 300 is clamped in the limiting groove 11. In this embodiment, the provision of the separation groove 120 can provide space and prerequisites for slight deformation of the limiting plate 200 .

[0033] In one embodiment, the limiting protrusion 300 is provided in an arc-shaped rod-shaped structure, and the limiting protrusion 300 is located on a side of the inner surface of the limiting plate 200 close to the front end of the front cover body 100 .

[0034] Specifically, the limiting protrusion 300 is an arc-shaped rod-shaped structure, wherein the bending radius of the arc-shaped rod-shaped structure is equal to the radius of the inner surface of the limiting plate 200, so that the radial section of the arc-shaped rod-shaped structure can coincide with the inner surface of the limiting plate 200. In this embodiment, the section of the limiting protrusion 300 is composed of a plane and a curved surface, the plane is the radial section of the arc-shaped rod-shaped structure, and is also a surface that fits or coincides with the inner surface of the limiting plate 200, and both ends of the curved surface are connected to the two ends of the plane, or in other words, both ends of the curved surface are connected to the inner surface of the limiting plate 200. Regarding the setting position of the limiting protrusion 300 on the limiting plate 200, if the limiting protrusion 300 is set on the side of the limiting plate 200 away from the front end of the front cover body 100, it is more convenient for the camera 10 to be inserted between multiple limiting plates 200, and the deformation of the limiting plate 200 is also easier. In order to further enhance the installation tightness between the front cover body 100 and the camera 10, in this embodiment, the limiting protrusion 300 is set on the side of the limiting plate 200 close to the front end of the front cover body 100, so that the camera 10 is more stable after being clamped between multiple limiting plates 200.

[0035] In one embodiment, two first grooves 130 are symmetrically opened at the front end of the front cover body 100 , one end of the first groove 130 passes through the installation cavity 110 , and the other end of the first groove 130 passes through the side end of the front cover body 100 .

[0036] Specifically, since the front cover alloy die-casting of the present embodiment is die-cast, which is generally the same as the principle of plastic molding, two first grooves 130 are provided at the front end of the front cover body 100, and there will be two protrusions inside the front cover body 100, which are the bottoms of the first grooves 130. By providing the first groove 130 at the front end of the front cover body 100, and one end of the first groove 130 passes through the installation cavity 110, the heat dissipation of the camera 10 can be further enhanced, and the other end of the first groove 130 passes through the side end of the front cover body 100. This arrangement allows the heat dissipation space to be connected to the outside in a wider range, thereby promoting the dissipation of heat, so that the front cover alloy die-casting in the present embodiment can achieve faster heat dissipation in combination with the airflow of the external environment on the basis of natural heat dissipation.

[0037] In one embodiment, a first through hole 140 is defined on the bottom surface of the first groove 130 , and a positioning tube 400 is disposed in the front cover body 100 , with an open end of the positioning tube 400 connected to the first through hole 140 .

[0038] Specifically, the open end of the positioning cylinder 400 is connected to the first through hole 140, and the unopened end of the positioning cylinder 400 is located inside the front cover body 100. A second through hole 410 is also provided in the middle of the unopened end of the positioning cylinder 400, so that the external environment airflow can flow through the second through hole 410 and the internal airflow of the front cover body 100 to avoid heat accumulation inside the front cover body 100. In addition, since the positioning cylinder 400 is a structural arrangement, rather than a simple hole or groove structure, a mesh filter structure can be installed in the positioning cylinder 400 to prevent external dust from entering the front cover body 100 during the airflow flow while achieving the airflow flow inside and outside the front cover body 100. In this embodiment, a plurality of second grooves 150 are provided at the connection between the first through hole 140 and the bottom surface of the first groove 130, and the plurality of second grooves 150 are arranged in a circular array. When a filter cartridge, which is a mesh structure for filtering dust, is installed in the positioning cylinder 400, since the edge of the filter cartridge fits against the inner surface of the positioning cylinder 400, it is difficult to remove the filter cartridge if there is no gap such as a notch between the two. Therefore, in this embodiment, a plurality of second grooves 150 are provided at the connection between the first through hole 140 and the bottom surface of the first groove 130, so that after the filter cartridge is installed in the positioning cylinder 400, there is still a gap between some areas and the positioning cylinder 400, and the user can remove the filter cartridge through the gap, and then clean the dust filtered on the filter cartridge or replace the filter cartridge.

[0039] In one embodiment, a cylindrical filter screen is installed in the positioning cylinder 400 , and a positioning block is disposed at the open end of the cylindrical filter screen. The positioning block is clamped in the second groove 150 .

[0040] Specifically, the cylindrical filter is the filter cartridge proposed in the above embodiment. Since a plurality of second grooves 150 are arranged in a circular array, in order to enhance the connection stability between the cylindrical filter and the positioning cylinder 400, a positioning block should be provided at the open end of the cylindrical filter, and the surface of the positioning block can be snapped into the second groove 150, and the number of the positioning blocks is at least one less than the second groove 150.

[0041] In one embodiment, a notch 420 is further provided at the unopened end of the positioning tube 400 , one side of the notch 420 coincides with the radius of the positioning tube 400 , and the other side of the notch 420 is parallel to the bottom surface of the first groove 130 .

[0042] Specifically, the cutout 420 is composed of two cut surfaces, one of which coincides with the radius of the positioning cylinder 400 and extends along the central axis of the positioning cylinder 400, and the other cut surface is spaced apart from the unopened end of the positioning cylinder 400 and is parallel to the bottom surface of the first groove 130. One end of the two cut surfaces is connected to form a cutout 420. The setting of the cutout 420, on the one hand, reserves a portion of the unopened end of the positioning cylinder 400 for limiting the cylindrical filter screen to avoid excessive installation, and on the other hand, increases the airflow channel between the inside and outside of the front cover body 100. The cutout 420 faces the limiting plate 200, and the two cutouts 420 are symmetrically arranged.

[0043] In one embodiment, a die-casting mold for a front cover alloy die-casting for a car camera is used to process the front cover alloy die-casting for a car camera of any of the above embodiments, including a fixed mold and a movable mold, the fixed mold is used to shape the front end face of the front cover alloy die-casting, and the movable mold is used to shape the inner face of the front cover alloy die-casting, and the front end face and the inner face edge of the front cover alloy die-casting are connected.

[0044] Specifically, since the front cover alloy die-casting of this embodiment is die-casting, which is generally the same as plastic molding in principle, the die-casting mold is similar to the injection mold in principle and has certain similarities in structure. In this embodiment, the fixed mold is used to mold the front end face of the front cover alloy die-casting, and the front end face here includes the front end and side end of the front cover body 100, the surface of the first groove 130, the surface of the second groove 150, the surface of the third groove 210, the inner surface of the positioning cylinder 400, and the inner surface of the limit plate 200. The movable mold is used to mold the inner surface of the front cover alloy die-casting, and the inner surface here includes the cutout 420, the separation groove 120, and all the inner surfaces of the front cover body 100.

[0045] The die-casting mold of the front cover alloy die-casting for the above-mentioned automobile camera is taken out after the front cover alloy die-casting is completed, and then the front cover alloy die-casting is assembled with the shell alloy die-casting and the camera 10. After assembly, the rear end opening of the front cover alloy die-casting is engaged with the front end opening of the shell alloy die-casting, the tail end of the camera 10 is fixed in the shell alloy die-casting, and the head end of the camera 10 is inserted between multiple limit plates 200. Since a separation groove 120 is formed between two adjacent limit plates 200, the multiple limit plates 200 arranged in a ring array can ensure that the edges of the camera 10 The camera 10 can be fixed to the maximum extent under the condition of heat dissipation at the edge, and a third groove 210 is opened on the inner surface of the limit plate 200, which is used to fit the camera 10, and one end of the third groove 210 passes through the front end of the front cover body 100, and cooperates with the partition groove 120 to provide a heat dissipation space for the rear end of the camera 10, while the third groove 210 provides a heat dissipation space for the front end of the camera 10, so that the heat generated on the surface of the camera 10 during use can be naturally dissipated, avoiding long-term accumulation of heat that affects the use status and service life of the camera 10.

[0046] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0047] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A front cover alloy die casting for a car camera, characterized in that: include: The front cover body has a mounting cavity in the middle; A plurality of limit plates are arranged in the installation cavity in an annular array, connected to the front cover body, and integrally located inside the front cover body, a separation groove is formed between two adjacent limit plates, the limit plates are arranged in an arc-shaped structure, a third groove is opened on the inner surface of the limit plate, and one end of the third groove passes through to the front end of the front cover body; The inner surface of the limiting plate is provided with a plurality of limiting protrusions spaced apart along the central axis direction of the installation cavity, and the limiting protrusions are used to be clamped in the limiting grooves provided on the outer ring of the camera; The limiting protrusion is arranged in an arc-shaped rod-shaped structure, and the limiting protrusion is located on a side of the inner surface of the limiting plate close to the front end of the front cover body; The front end of the front cover body is symmetrically provided with two first grooves, one end of the first groove passes through the installation cavity, and the other end of the first groove passes through the side end of the front cover body; A first through hole is formed on the bottom surface of the first groove, a positioning cylinder is disposed in the front cover body, and an open end of the positioning cylinder is connected to the first through hole; A second through hole is formed in the middle of the unopened end of the positioning tube, and a plurality of second grooves are formed at the connection between the first through hole and the bottom surface of the first groove, and the plurality of second grooves are arranged in a ring array; The unopened end of the positioning tube is also provided with a cutout, one side of the cutout coincides with the radius of the positioning tube, and the other side of the cutout is parallel to the bottom surface of the first groove; The cutout faces the limiting plate, and the two cutouts are symmetrically arranged; A cylindrical filter screen is installed in the positioning cylinder, and a positioning block is arranged at the open end of the cylindrical filter screen. The positioning block is clamped in the second groove.

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