Camera rear cover, rear cover assembly and camera

Abstract

The utility model discloses a camera rear cover, a rear cover assembly and a camera. The camera rear cover comprises a connecting frame; and a rear cover body for mounting the connector. The connecting frame and the rear cover main body are made of two different metal materials; the rear cover main body is die-cast on the connecting frame, so that the front side surface of the rear cover main body and the rear side surface of the connecting frame are hermetically connected together; the front side face of the connecting frame is suitable for being welded to the rear side face of a camera front cover so that the camera rear cover and the camera front cover can be connected together in a sealed mode. In some embodiments of the utility model, the rear cover main body of the camera rear cover is the metal die casting, and the plasticity of the metal material for manufacturing the rear cover main body is very good, so that the manufacturing difficulty and the manufacturing cost of the camera rear cover can be greatly reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a camera rear cover, including the rear cover assembly of this camera rear cover, the camera of including this rear cover assembly and camera rear cover manufacturing method. BACKGROUND

[0002] In the prior art, the vehicle-mounted high-definition camera comprises a front cover and a rear cover. The front cover is internally provided with an optical lens, and the rear cover is internally provided with a coaxial connector. The front cover and the rear cover are both formed by aluminum alloy cold forging, and the joint is connected into a whole by removing the oxidation layer through machining and then adopting a laser fusion welding process, thereby forming a complete sealed shielding shell with excellent heat dissipation and shielding performance. A buckle structure for engaging with a counter-connector of a counter-housing and a mounting structure for mounting and positioning the connector are formed on the camera rear cover. These structures are relatively complex, have high dimensional accuracy requirements, are difficult to form by aluminum alloy cold forging, have high costs, and can also cause the service life of the manufacturing mold to be short. SUMMARY

[0003] The utility model aims to solve at least one aspect of the above problems and defects in the prior art.

[0004] According to one aspect of the utility model, a camera rear cover is provided. The camera rear cover comprises: a connecting frame; and a rear cover main body for mounting a connector. The connecting frame and the rear cover main body are made of two different metal materials; the rear cover main body is die-cast onto the connecting frame, such that a front side of the rear cover main body and a rear side of the connecting frame are sealingly connected together; and a front side of the connecting frame is adapted to be welded to a rear side of a camera front cover, so as to sealingly connect the camera rear cover and the camera front cover together.

[0005] According to one exemplary embodiment of the utility model, the connecting frame is a metal cold forging part, the rear cover main body is a metal die-cast part, and the plasticity of the metal material for manufacturing the rear cover main body is better than the plasticity of the metal material for manufacturing the connecting frame.

[0006] According to another exemplary embodiment of the utility model, the connecting frame is an aluminum alloy cold forging part, and the rear cover main body is a zinc alloy die-cast part.

[0007] According to another exemplary embodiment of the utility model, the rear cover main body comprises: a rear cover portion comprising a peripheral wall and a rear wall that enclose a rear chamber; and a housing portion formed on an outer side of the rear wall of the rear cover portion and having an inner cavity for inserting the connector in communication with the rear chamber, a front side of the peripheral wall of the rear cover portion being sealingly connected to a rear side of the connecting frame.

[0008] According to another exemplary embodiment of the present application, the housing portion is used as a shell of the connector, and a step portion adapted to axially abut against a flange portion of an outer terminal of the connector is formed in an inner cavity of the housing portion to axially position the outer terminal of the connector.

[0009] According to another exemplary embodiment of the present application, a positioning flange adapted to axially abut against an end face of a sealing ring of the connector is formed in an inner cavity of the housing portion to axially position the sealing ring of the connector.

[0010] According to another exemplary embodiment of the present application, a positioning flange adapted to axially abut against an end face of a sealing ring of the connector is formed in an inner cavity of the housing portion to axially position the sealing ring of the connector.

[0011] According to another exemplary embodiment of the present application, a guide rib extending along an axial direction of the housing portion is formed on an outer side of the housing portion, and the guide rib is used to cooperate with a guide groove on the counter-housing to guide the housing portion and the counter-housing to be counter-assembled along the axial direction.

[0012] According to another exemplary embodiment of the present application, the cross section of the connecting frame and the cross section of the peripheral wall of the rear cover portion are rectangular, square or circular.

[0013] According to another exemplary embodiment of the present application, the rear side of the connecting frame and the front side of the peripheral wall of the rear cover portion are complementary stepped surfaces and are sealingly connected together.

[0014] According to another exemplary embodiment of the present application, the rear side of the connecting frame and the front side of the peripheral wall of the rear cover portion are both planar surfaces and are sealingly connected together.

[0015] According to another exemplary embodiment of the present application, a wear-resistant and corrosion-resistant plating layer is formed on all surfaces of the camera rear cover except the front side of the connecting frame.

[0016] According to another aspect of the present application, a rear cover assembly is provided. The rear cover assembly comprises: the aforementioned camera rear cover; and a connector inserted into a rear cover body of the camera rear cover.

[0017] According to another aspect of the present application, a camera is provided. The camera comprises: the aforementioned rear cover assembly; a camera front cover, a rear side of which is welded to a front side of the connecting frame; an imaging module mounted into the camera front cover; and a circuit module mounted in the camera front cover and the camera rear cover, the connector and the imaging module being electrically connected to the circuit module.

[0018] According to an exemplary embodiment of the present application, the camera front cover is a metal cold forging part, and the metal material used to manufacture the camera front cover is the same as the metal material used to manufacture the connecting frame of the camera rear cover.

[0019] According to another aspect of the present application, a camera rear cover manufacturing method is provided. The camera rear cover manufacturing method comprises the following steps:

[0020] S10: cold forging a metal blank made of a first metal material into a connecting frame of a camera rear cover;

[0021] S20: placing the connecting frame into a die casting mold and injecting a molten second metal material into the die casting mold to manufacture a rear cover body of the camera rear cover; and

[0022] S30: after the second metal material is cooled and formed, taking out the manufactured camera rear cover from the die casting mold,

[0023] The plasticity of the second metal material is better than that of the first metal material.

[0024] According to an exemplary embodiment of the present application, the camera rear cover manufacturing method further comprises the following steps:

[0025] S40: overall electroplating the camera rear cover to form a wear-resistant and corrosion-resistant plating layer on the surface of the camera rear cover;

[0026] S50: removing the plating layer on the front side of the connecting frame of the camera rear cover to ensure that the front side of the connecting frame of the camera rear cover can be welded to the rear side of the camera front cover.

[0027] According to an exemplary embodiment of the present application, the step S10 comprises:

[0028] S111: forging and pressing the metal blank into the connecting frame; and

[0029] S112: machining the rear side of the connecting frame to make the rear side of the connecting frame a plane or a stepped surface.

[0030] According to another exemplary embodiment of the present application, the step S10 comprises:

[0031] S121: extruding the metal blank into a profile with the same cross section as the connecting frame; and

[0032] S122: cutting the profile to obtain the connecting frame.

[0033] In the foregoing some exemplary embodiments according to the utility model, the rear cover main body of camera rear cover is metal pressure casting, and the plasticity of metal material manufacturing rear cover main body is very good, therefore, can greatly reduce the manufacturing difficulty and manufacturing cost of camera rear cover.

[0034] Other objects and advantages of the present utility model will become more apparent and will be better understood when the present utility model is described in conjunction with the accompanying drawings, and the present utility model will be fully understood. BRIEF DESCRIPTION OF DRAWINGS

[0035] Figure 1 Fig. 1 shows a perspective view of a camera according to an exemplary embodiment of the present utility model;

[0036] Figure 2 Fig. 2 shows an axial sectional view of the camera according to an exemplary embodiment of the present utility model;

[0037] Figure 3 Fig. 3 shows an exploded sectional view of the camera from the rear side according to an exemplary embodiment of the present utility model;

[0038] Figure 4 Fig. 4 shows an exploded sectional view of the camera from the front side according to an exemplary embodiment of the present utility model;

[0039] Figure 5 Fig. 5 shows a perspective view of a rear cover assembly of the camera from the rear side according to an exemplary embodiment of the present utility model;

[0040] Figure 6 Fig. 6 shows an exploded view of the camera rear cover from the front side according to an exemplary embodiment of the present utility model;

[0041] Figure 7 Fig. 7 shows an exploded sectional view of the camera rear cover from the rear side according to an exemplary embodiment of the present utility model;

[0042] Figure 8 Fig. 8 shows an exploded sectional view of the camera rear cover from the front side according to an exemplary embodiment of the present utility model. DETAILED DESCRIPTION

[0043] The technical scheme of the present utility model will be further specifically explained below by embodiments, and in conjunction with the accompanying drawings. In the specification, the same or similar reference numerals indicate the same or similar components. The following description of the embodiments of the present utility model with reference to the accompanying drawings is intended to explain the overall general inventive concept of the present utility model, and should not be understood as a limitation of the present utility model.

[0044] Also, in the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the present disclosure. However, it will be apparent to one skilled in the art that one or more embodiments can be practiced without these specific details. In other instances, well-known structures and devices are shown in block diagram form in order to faciliate understanding of the accompanying drawings.

[0045] According to one general inventive concept of the present utility model, a camera rear cover is provided. The camera rear cover comprises: a connecting frame; and a rear cover main body for mounting a connector. The connecting frame and the rear cover main body are made of two different metal materials; the rear cover main body is die-cast onto the connecting frame, so that a front side of the rear cover main body and a rear side of the connecting frame are sealingly connected together; a front side of the connecting frame is adapted to be welded onto a rear side of a camera front cover, so as to sealingly connect the camera rear cover and the camera front cover together.

[0046] According to another general inventive concept of the present utility model, a camera rear cover is provided. The camera rear cover comprises: a connecting frame which is a metal cold-forged piece; and a rear cover main body for mounting a connector and which is a metal die-cast piece. The plasticity of the metal material for manufacturing the rear cover main body is superior to the plasticity of the metal material for manufacturing the connecting frame; the rear cover main body is die-cast onto the connecting frame, so that a front side of the rear cover main body and a rear side of the connecting frame are sealingly connected together; a front side of the connecting frame is adapted to be welded onto a rear side of a camera front cover, so as to sealingly connect the camera rear cover and the camera front cover together.

[0047] According to another general inventive concept of the present utility model, a camera rear cover is provided. The camera rear cover comprises: a connecting frame which is a metal cold-forged piece; and a rear cover main body for mounting a connector and which is a metal die-cast piece. The plasticity of the metal material for manufacturing the rear cover main body is superior to the plasticity of the metal material for manufacturing the connecting frame; the rear cover main body is die-cast onto the connecting frame, so that a front side of the rear cover main body and a rear side of the connecting frame are sealingly connected together; a front side of the connecting frame is adapted to be welded onto a rear side of a camera front cover, so as to sealingly connect the camera rear cover and the camera front cover together.

[0048] According to another general inventive concept of the present utility model, a camera is provided. The camera comprises: the aforementioned rear cover assembly; a camera front cover whose rear side is welded onto a front side of the connecting frame; an imaging module mounted into the camera front cover; and a circuit module mounted in the camera front cover and the camera rear cover, the connector and the imaging module being electrically connected with the circuit module.

[0049] According to another general technical concept of the present application, a camera rear cover manufacturing method is provided, comprising: cold forging a metal blank made of a first metal material into a connecting frame of a camera rear cover; placing the connecting frame into a die casting mold and injecting a molten second metal material into the die casting mold to manufacture a rear cover body of the camera rear cover; and taking out the manufactured camera rear cover from the die casting mold after the second metal material is cooled and formed. The plasticity of the second metal material is better than that of the first metal material.

[0050] Figure 1 A perspective view of a camera according to an exemplary embodiment of the present application is shown; Figure 2 An axial sectional view of a camera according to an exemplary embodiment of the present application is shown; Figure 3 An exploded sectional view of a camera from a rear side according to an exemplary embodiment of the present application is shown; Figure 4 An exploded sectional view of a camera from a front side according to an exemplary embodiment of the present application is shown; Figure 5 A perspective view of a rear cover assembly of a camera from a rear side according to an exemplary embodiment of the present application is shown; Figure 6 An exploded view of a camera rear cover 1 from a front side according to an exemplary embodiment of the present application is shown; Figure 7 An exploded sectional view of a camera rear cover 1 from a rear side according to an exemplary embodiment of the present application is shown; Figure 8 An exploded sectional view of a camera rear cover 1 from a front side according to an exemplary embodiment of the present application is shown.

[0051] As Figures 1 to 8 shown in an exemplary embodiment of the present application, a camera rear cover 1 is disclosed. The camera rear cover 1 comprises a connecting frame 13 and a rear cover body 10. The rear cover body 10 is used to mount a connector 2. The connecting frame 13 and the rear cover body 10 are made of two different metal materials. The rear cover body 10 is die cast onto the connecting frame 13, so that a front side 111a of the rear cover body 10 and a rear side 13a of the connecting frame 13 are sealingly connected together. The front side of the connecting frame 13 is adapted to be welded to a rear side of a camera front cover 3 to sealingly connect the camera rear cover 1 and the camera front cover 3 together.

[0052] As Figures 1 to 8 shown in the illustrated embodiment, the connecting frame 13 can be a metal cold forging, the rear cover body 10 can be a metal die casting, and the plasticity of the metal material used to manufacture the rear cover body 10 is better than that of the metal material used to manufacture the connecting frame 13. This can reduce the manufacturing difficulty and cost of the structurally complex rear cover body 10.

[0053] As Figures 1 to 8 shown, in the illustrated embodiment, the connection frame 13 can be, but is not limited to, an aluminum alloy cold forging, and the rear cover body 10 can be, but is not limited to, a zinc alloy die casting.

[0054] As Figures 1 to 8 shown, in the illustrated embodiment, the rear cover body 10 includes a rear cover portion 11 and a housing portion 12. The rear cover portion 11 includes a peripheral wall 111 and a rear wall 112 that enclose a rear chamber 110. The housing portion 12 is formed on the outer side of the rear wall 112 of the rear cover portion 11 and has an inner cavity 120 that communicates with the rear chamber 110 for inserting the connector 2. The front side 111a of the peripheral wall 111 of the rear cover portion 11 is sealingly connected to the rear side 13a of the connection frame 13.

[0055] As Figures 1 to 8 shown, in the illustrated embodiment, the housing portion 12 serves as a housing for the connector 2, and a snap 121 adapted to engage with a mating housing (not shown) of a mating connector (not shown) is formed on the outer side of the housing portion 12.

[0056] As Figures 1 to 8 shown, in the illustrated embodiment, the connector 2 is a coaxial connector. A step portion 123 adapted to axially abut against the flange portion 21a of the outer terminal 21 of the connector 2 is formed in the inner cavity 120 of the housing portion 12 to axially position the outer terminal 21 of the connector 2.

[0057] As Figures 1 to 8 shown, in the illustrated embodiment, a positioning flange 124 adapted to axially abut against the end face 22a of the seal ring 22 of the connector 2 is formed in the inner cavity 120 of the housing portion 12 to axially position the seal ring 22 of the connector 2.

[0058] As Figures 1 to 8 shown, in the illustrated embodiment, a guide rib 122 extending along the axial direction of the housing portion 12 is formed on the outer side of the housing portion 12, and the guide rib 122 is used to cooperate with a guide groove (not shown) on the mating housing to guide the axial mating of the housing portion 12 with the mating housing.

[0059] As Figures 1 to 8 shown, in the illustrated embodiment, the cross section of the connection frame 13 and the cross section of the peripheral wall 111 of the rear cover portion 11 are rectangular, square, circular or other suitable shapes.

[0060] As Figures 1 to 8As shown in the illustrated embodiment, the rear side surface 13a of the connecting frame 13 and the front side surface 111a of the peripheral wall 111 of the rear cover portion 11 are complementary stepped surfaces and are sealingly connected together. However, the present application is not limited to the illustrated embodiment, for example, the rear side surface 13a of the connecting frame 13 and the front side surface 111a of the peripheral wall 111 of the rear cover portion 11 can both be planar surfaces and are sealingly connected together.

[0061] As shown in the illustrated embodiment, a wear-resistant and corrosion-resistant plating layer is formed on all surfaces of the camera rear cover 1 except the front side surface 111a of the connecting frame 13. Figures 1 to 8

[0062] As shown in the illustrated embodiment, a wear-resistant and corrosion-resistant plating layer is formed on all surfaces of the camera rear cover 1 except the front side surface 111a of the connecting frame 13. Figures 1 to 8 As shown in the illustrated embodiment, a wear-resistant and corrosion-resistant plating layer is formed on all surfaces of the camera rear cover 1 except the front side surface 111a of the connecting frame 13.

[0063] Figures 1 to 8 As shown in the illustrated embodiment, a wear-resistant and corrosion-resistant plating layer is formed on all surfaces of the camera rear cover 1 except the front side surface 111a of the connecting frame 13.

[0064] As shown in the illustrated embodiment, a wear-resistant and corrosion-resistant plating layer is formed on all surfaces of the camera rear cover 1 except the front side surface 111a of the connecting frame 13. Figures 1 to 8 As shown in the illustrated embodiment, a wear-resistant and corrosion-resistant plating layer is formed on all surfaces of the camera rear cover 1 except the front side surface 111a of the connecting frame 13.

[0065] Figures 1 to 8 As shown in the illustrated embodiment, a wear-resistant and corrosion-resistant plating layer is formed on all surfaces of the camera rear cover 1 except the front side surface 111a of the connecting frame 13.

[0066] S10: cold forging a metal blank made of a first metal material into the connecting frame 13 of the camera rear cover 1;

[0067] S20: placing the connecting frame 13 into a die casting mold and injecting a molten second metal material into the die casting mold to manufacture the rear cover body 10 of the camera rear cover 1; and

[0068] S30: after the second metal material is cooled and formed, taking out the manufactured camera rear cover 1 from the die casting mold,

[0069] ​​​The plasticity of the second metal material is superior to that of the first metal material.

[0070] As shown in the illustrated embodiment, the camera rear cover manufacturing method further comprises the steps of: Figures 1 to 8

[0071] S40: The camera rear cover 1 is overall electroplated to form a wear-resistant and corrosion-resistant plating layer on the surface of the camera rear cover 1;

[0072] S50: The plating layer on the front side of the connecting frame 13 of the camera rear cover 1 is removed to ensure that the front side of the connecting frame 13 of the camera rear cover 1 can be welded to the rear side of the camera front cover 3.

[0073] As shown in the illustrated embodiment, the step S10 comprises: Figures 1 to 8

[0074] S111: The metal blank is forged into the connecting frame 13; and

[0075] S112: The rear side 13a of the connecting frame 13 is machined to make the rear side 13a of the connecting frame 13 a plane or a stepped surface.

[0076] As shown in the illustrated embodiment, the step S10 comprises: ​

[0077] S121: The metal blank is extruded into a profile with the same cross section as the connecting frame 13; and

[0078] S122: The profile is cut to obtain the connecting frame 13.

[0079] Those skilled in the art can understand that the above-described embodiments are exemplary, and those skilled in the art can make improvements, and the structures described in various embodiments can be freely combined without structural or principle conflicts, and these changes shall fall within the protection scope of the utility model.

[0080] Although the utility model has been described in conjunction with the drawings, the embodiments disclosed in the drawings are intended to exemplarily illustrate the preferred embodiments of the utility model, and cannot be understood as a limitation of the utility model.

[0081] Although some embodiments of the general concept of the utility model have been shown and described, those skilled in the art will understand that changes can be made to these embodiments without departing from the principles and spirits of the general concept of the utility model, and the scope of the utility model is limited by the claims and their equivalents.

[0082] ​​​It should be noted that the word "comprising" does not exclude other elements or steps, and the word "a" or "an" does not exclude a plurality. Additionally, any reference signs in the claims should not be construed as limiting the scope of the present application.

Claims

1. A camera back cover, characterized in that, Comprising: a connecting frame (13); and a rear cover body (10) for mounting a connector (2), the connecting frame (13) and the rear cover body (10) are made of two different metal materials, the rear cover body (10) is die-cast onto the connecting frame (13) so that a front side (111a) of the rear cover body (10) and a rear side (13a) of the connecting frame (13) are sealingly connected together, a front side of the connecting frame (13) is adapted to be welded to a rear side of a camera front cover (3) to sealingly connect the camera rear cover (1) and the camera front cover (3) together.

2. The camera rear cover according to claim 1, characterized in that: the connecting frame (13) is a metal cold forging, the rear cover body (10) is a metal die casting, and the plasticity of the metal material for manufacturing the rear cover body (10) is better than that of the metal material for manufacturing the connecting frame (13).

3. The camera rear cover according to claim 2, characterized in that: the connecting frame (13) is an aluminum alloy cold forging, and the rear cover body (10) is a zinc alloy die casting.

4. The camera rear cover according to claim 2, characterized in that: the rear cover body (10) comprises: a rear cover part (11) comprising a peripheral wall (111) and a rear wall (112) enclosing a rear chamber (110); and a housing part (12) formed on an outer side of the rear wall (112) of the rear cover part (11) and having an inner cavity (120) communicating with the rear chamber (110) for inserting the connector (2), a front side (111a) of the peripheral wall (111) of the rear cover part (11) is sealingly connected to a rear side (13a) of the connecting frame (13).

5. The camera rear cover according to claim 4, characterized in that: the housing part (12) serves as a shell of the connector (2), and a snap (121) adapted to engage with a counter-housing of a counter-connector is formed on an outer side of the housing part (12).

6. The camera rear cover according to claim 5, characterized in that: a step part (123) adapted to axially abut against a flange part (21a) of an outer terminal (21) of the connector (2) is formed in the inner cavity (120) of the housing part (12) to axially position the outer terminal (21) of the connector (2).

7. The camera rear cover according to claim 5, characterized in that: a positioning flange (124) adapted to axially abut against an end face (22a) of a sealing ring (22) of the connector (2) is formed in the inner cavity (120) of the housing part (12) to axially position the sealing ring (22) of the connector (2).

8. The camera rear cover according to claim 5, characterized in that: ​ A guide rib (122) extending along the axial direction of the housing part (12) is formed on the outer side of the housing part (12), and the guide rib (122) is used to cooperate with a guide groove on the counter-housing to guide the axial alignment of the housing part (12) and the counter-housing.

9. The camera rear cover according to claim 4, characterized in that: The cross section of the connecting frame (13) and the cross section of the peripheral wall (111) of the rear cover part (11) are rectangular, square or circular.

10. The camera rear cover according to claim 4, characterized in that: The rear side (13a) of the connecting frame (13) and the front side (111a) of the peripheral wall (111) of the rear cover part (11) are complementary stepped surfaces and are sealingly connected together.

11. The camera rear cover according to claim 4, characterized in that: The rear side (13a) of the connecting frame (13) and the front side (111a) of the peripheral wall (111) of the rear cover part (11) are both flat surfaces and are sealingly connected together.

12. The camera rear cover according to claim 4, characterized in that: A wear-resistant and corrosion-resistant plating layer is formed on all surfaces of the camera rear cover (1) except the front side (111a) of the connecting frame (13).

13. A rear cover assembly characterized by, Comprising: The camera rear cover (1) according to any one of claims 1-12; And A connector (2) inserted into the rear cover body (10) of the camera rear cover (1).

14. A camera, characterized by Comprising: The rear cover assembly according to claim 13; A camera front cover (3) whose rear side is welded to the front side of the connecting frame (13); An imaging module (4) mounted in the camera front cover (3); And A circuit module mounted in the camera front cover (3) and the camera rear cover (1), The connector (2) and the imaging module (4) are electrically connected to the circuit module.

15. The camera according to claim 14, characterized in that: The camera front cover (3) is a metal cold forging part, and the metal material used to manufacture the camera front cover (3) is the same as the metal material used to manufacture the connecting frame (13) of the camera rear cover (1).

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