CN118233731A - Camera for a motor vehicle and method for producing a camera - Google Patents
Camera for a motor vehicle and method for producing a camera Download PDFInfo
- Publication number
- CN118233731A CN118233731A CN202211642561.2A CN202211642561A CN118233731A CN 118233731 A CN118233731 A CN 118233731A CN 202211642561 A CN202211642561 A CN 202211642561A CN 118233731 A CN118233731 A CN 118233731A
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- Prior art keywords
- camera
- objective
- optical unit
- carrier element
- electronic unit
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- 238000004519 manufacturing process Methods 0.000 title claims description 10
- 230000003287 optical effect Effects 0.000 claims abstract description 56
- 238000000034 method Methods 0.000 claims description 19
- 238000001746 injection moulding Methods 0.000 claims description 8
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 description 13
- 230000001070 adhesive effect Effects 0.000 description 13
- 238000010276 construction Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000012778 molding material Substances 0.000 description 1
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Abstract
The invention relates to a camera for a motor vehicle, comprising: an optical unit having a camera objective having an object barrel and at least one optical lens; and an electronic unit having a carrier element, wherein an image sensor is arranged on a side of the carrier element facing the camera objective, wherein at least one electrical plug is arranged on a side of the carrier element facing away from the camera objective; wherein the optical unit and the electronic unit are configured to be connected to each other in a connection region by means of a connection element. The connection region here also comprises an injection-molded component, which in the connection region encloses the optical unit and the electronic unit in a form-fitting manner.
Description
Technical Field
The invention relates to a camera for a motor vehicle and a method for producing a camera.
Background
DE 10 2019 200 061A1 discloses an objective lens element group for an image detection device, which comprises an objective lens element group and a sensor carrier. The objective element group has a lens barrel which is shaped to accommodate at least one lens. The lens barrel has a flange with a lens barrel adhesive region, wherein the lens barrel adhesive region is arranged on a side of the flange facing away from the sensor carrier in the mounted state of the image detection device. Furthermore, the objective element group has a holding device in order to hold the lens barrel on the sensor carrier. The holding device has a first holding adhesive region at the first free end, which is arranged on the side of the holding device facing the sensor carrier in the assembled state of the image detection device. At a second free end of the holding device, the holding device has a second holding adhesive region, which is arranged in the assembled state on the side facing the lens barrel adhesive region.
Disclosure of Invention
The invention relates to a camera for a motor vehicle, comprising an optical unit having a camera objective with an object lens barrel and at least one optical lens, and an electronic unit having a carrier element, wherein an image sensor is arranged on a side of the carrier element facing the camera objective, wherein at least one electrical plug is arranged on a side of the carrier element facing away from the camera objective, wherein the optical unit and the electronic unit are configured to be connected to one another in a connection region by means of a connection element.
According to the invention, the connection region further comprises an injection-molded element, which in the connection region encloses the optical unit and the electronic unit in a form-fitting manner.
The camera described herein may be used, inter alia, to detect the surroundings of a vehicle.
The camera objective may have one or more optical lenses arranged inside the objective lens barrel. The camera objective is arranged in particular in a position oriented towards the image sensor. The optical unit may comprise further optical elements, such as filters, optical lenses, etc., in addition to the camera objective. The optical unit may additionally comprise electrical elements, such as electrical connections, electrical heating elements, etc.
The electronic unit may comprise further electrical components in addition to the image sensor. The electronic unit may additionally comprise optical elements, such as one or more optical filters, one or more optical lenses, etc. The carrier element is in particular designed as a circuit board. The electrical plug may be configured as a rigid coaxial plug.
The connecting element can be formed, for example, by solder or by adhesive. The connection between the optical unit and the electronic unit may be configured as a soldered connection or an adhesive connection.
The advantage of the invention is that the optical unit and the electronic unit are protected from external influences in the connection region by means of the injection-molded component. A camera is provided in which a housing shell, as used in known cameras, for example, can be dispensed with. A rigid, separate lower housing (in other words a "cover") may be omitted. The upper shell, which comprises, for example, the carrier element, can be omitted. Thereby providing significant cost savings. Furthermore, the camera is constructed significantly smaller. In particular, the width of the camera is small. This gives rise to more possibilities, for example, that the camera can also be mounted in a narrow place in the vehicle. In addition, since the camera can be used normally without screws, a stock of material for the screws is not required. The sealing is achieved by means of injection molded elements. Thus, an axial seal at the plug may be achieved without the need for an additional seal. Furthermore, the necessity of tolerance compensation at the plug is avoided. The plug is thus not necessarily constructed to be movable. In a rigid plug, a flexible sealing ring can be dispensed with.
The injection molding element is in particular designed such that it positively surrounds the side of the carrier element facing away from the camera objective. The injection molding element is in particular designed such that it positively surrounds a region of the outer surface of the optical unit. The injection-molded element is in particular designed such that it surrounds the plug in a form-locking manner at a first end facing the carrier plate. The injection-molded component is in particular of square design. The injection-molded component has in particular a square surface. This advantageously consumes very little injection molding material. Particularly preferably, the corners and edges of the square surfaces are rounded. The camera is thus advantageously operated well. The injection molded element may alternatively have other shapes or surfaces. Depending on the requirements of the camera, the shape of the injection-molded component can be configured individually, for example, due to the installation location in the vehicle. The camera can thus advantageously be configured very flexibly.
In an advantageous embodiment of the invention, at least one further electrical component is arranged on the side of the carrier element facing away from the camera objective. Such further components may be, for example, power supply units, serializers, etc. The injection-molded component is in particular designed such that it also surrounds the further electrical component in a form-fitting manner. Thereby, the further electrical component is also advantageously sealed.
In a further advantageous embodiment of the invention, it is provided that the optical unit further has an objective holder, which is fastened to the carrier element and is designed to hold the camera objective. The objective lens holder is composed in particular of metal. The objective holder is fixed to the carrier element, in particular by means of a soldered connection. Alternatively, the objective holder can also be fixed to the carrier element by means of a welded connection. The objective holder and the camera objective can be connected to each other by means of an adhesive connection. The advantage of this embodiment is that, in the method for producing a camera, the objective holder is first connected to the electronics unit and can be enclosed in a form-fitting manner by the injection-molded component. The camera objective may then be oriented towards the image sensor and fixed on the objective holder. Thus, the orientation and fixing of the camera objective may be the final step in the manufacturing process. The orientation of the camera objective towards the image sensor is not adversely affected by subsequent steps.
The invention also relates to a method for manufacturing a camera, comprising the steps of: providing an optical unit having a camera objective with an objective tube and at least one optical lens; the carrier element is provided with an image sensor on a first side and with at least one electrical plug on a second side for the construction of the electronic unit; arranging the optical unit and the electronic unit relative to each other such that the first side of the carrier element faces the optical unit; orienting the camera objective towards the image sensor; and connecting the optical unit and the electronic unit in the connection region by means of a connection element.
According to the invention, the method comprises the further step of forming an injection-molded component, wherein the injection-molded component surrounds the optical unit and the electronic unit in a form-fitting manner in the connection region.
In particular, the camera is manufactured by means of the method. Furthermore, the order of the steps described herein is not necessarily the order in which the steps are actually carried out. For example, the step of orienting the camera objective towards the image sensor may thus be performed temporally after the step of connecting the optical unit and the electronic unit. The step of orienting the camera objective towards the image sensor may also be performed temporally after the construction of the injection molded component. The orientation can take place here along five axes, for example in the form of a so-called five-axis active calibration (5-ACHSEN ACTIVE ALIGMENTS).
In an advantageous embodiment of the method, the optical unit further has an objective holder, which is designed to hold the camera objective, wherein the objective holder of the optical unit is fixed to the carrier element of the electronic unit in the connecting step. The objective holder is fixed to the carrier element, in particular by means of a soldered connection.
In a further advantageous embodiment of the method, provision is made for the orienting step to be carried out temporally after the joining step and the injection molding element forming step; wherein the method comprises the further step of fixing the camera objective lens on the objective lens holder. The camera lens is fixed to the lens holder, in particular by means of an adhesive connection. The advantage of this configuration is that the orientation and fixing of the camera objective can be the final step in the manufacturing method. The orientation of the camera objective towards the image sensor is not adversely affected by subsequent steps.
It is to be understood that the features mentioned above and those yet to be explained below can be used not only in the respectively described combination but also in other combinations or alone without departing from the scope of the invention.
Drawings
Embodiments of the present invention are described in detail below with reference to the drawings. Like reference numbers in the figures refer to identical or functionally similar elements. The drawings show:
FIG. 1 shows a first embodiment of a camera in a side section;
fig. 2 shows a second embodiment of the camera in a side section;
fig. 3 shows a second embodiment in a 3D view from behind;
fig. 4 shows a second embodiment in a 3D view from the front;
fig. 5 illustrates one embodiment of a method for manufacturing a camera.
Detailed Description
Fig. 1 shows a first exemplary embodiment of a camera head 100 in a side section. The camera 100 comprises an optical unit 110 with a camera objective 101 having an object lens barrel 102 and at least one optical lens 103, and an electronic unit 111 with a carrier element 104, wherein an image sensor 105 is arranged on a side of the carrier element 104 facing the camera objective 101, wherein an electrical plug 107 is arranged on a side of the carrier element 104 facing away from the camera objective 101. The optical unit 110 and the electronic unit 111 are configured to be connected to each other in a connection region 112 by means of the connection element 108. The connecting element 108 is composed in particular of an adhesive. The connecting element 108 is in particular constructed as an adhesive connection. The connection region 112 further comprises an injection-molded component 109, which in the connection region 112 positively encloses the optical unit 110 and the electronic unit 111. On the side of the carrier element 104 facing away from the camera objective 101, further electrical components 106-1 and 106-2 are arranged.
Fig. 2 shows a second embodiment of a camera 200, schematically in a side section. The camera 200 is constructed here similarly to the camera 100 in fig. 1, so that only the differences from the camera 100 are discussed in detail below.
In the camera 200, the optical unit 110 also has an objective holder 201 fixed to the carrier element 104, which is configured for holding the camera objective 101. The optical unit 110 and the electronic unit 111 are configured to be connected to each other by means of a connecting element, which is shown in fig. 2 as connecting element 202. The connection element 202 is composed of solder in particular. The connecting element 202 is in particular constructed as a soldered connection. An adhesive connection 203 is arranged between the camera objective 101 and the objective holder 201, said adhesive connection being configured for fixing the camera objective 101 to the objective holder 201.
Fig. 3 and 4 each show a second exemplary embodiment, namely the camera 200 in fig. 2, in a 3D view. Fig. 3 shows a view from the front. Only the further electrical components 106 are visible in this view. Fig. 4 shows a second embodiment exemplarily in a 3D view from the rear. It can be seen that in this embodiment the injection-molded element 109 is square in configuration. The corners and edges of the square surfaces are rounded.
Fig. 5 schematically illustrates one embodiment of a method 500 for manufacturing a camera. The cameras described in fig. 1 to 4 can be referred to here. In step 501 of the method 500, an optical unit is provided having a camera objective with an objective tube and at least one optical lens. In step 502, the carrier element is provided with an image sensor on a first side and with at least one electrical plug on a second side for the construction of the electronic unit. In step 503, the optical unit and the electronic unit are arranged with respect to each other such that the first side of the carrier element faces the optical unit. In one step, the camera objective is oriented towards the image sensor. In step 505, the optical unit and the electronic unit are connected in the connection region by means of a connection element. In step 506, the injection molding element is formed, wherein the injection molding element surrounds the optical unit and the electronic unit in a form-fitting manner in the connection region.
Optionally, the optical unit of the camera to be manufactured may also have an objective lens holder configured for holding the camera objective lens. In this case, in a connecting step 505, the objective holder of the optical unit is fixed to the carrier element of the electronic unit.
Furthermore, the order of steps 501 through 506 described herein is not necessarily the order in which it is actually manufactured. This is illustrated in fig. 5 by means of method steps shown in dashed lines. In a variant of the method 500, the orienting step 504 may thus be performed temporally after the connecting step 505 and the injection molding element forming step 506. In this case, as exemplarily shown herein, the method 500 includes an additional step 507 of fixing the camera objective lens on the objective lens holder.
Claims (6)
1. A camera (100, 200) for a motor vehicle, comprising:
-an optical unit (110) having a camera objective (101) with an objective tube (102) and at least one optical lens (103); and
-An electronic unit (111) having a carrier element (104), wherein an image sensor (105) is arranged on a side of the carrier element (104) facing the camera objective (101), wherein at least one electrical plug (107) is arranged on a side of the carrier element (104) facing away from the camera objective (101); and
Wherein the optical unit (110) and the electronic unit (111) are configured to be connected to each other in a connection region (112) by means of connection elements (108, 202);
It is characterized in that the method comprises the steps of,
The connection region (112) further comprises an injection molding element (109), which in the connection region (112) encloses the optical unit (110) and the electronic unit (111) in a form-fitting manner.
2. Camera (100, 200) according to claim 1, wherein at least one further electrical component (106, 106-1, 106-2) is arranged on a side of the carrier element (104) facing away from the camera objective (101).
3. Camera (100, 200) according to claim 1 or 2, wherein the optical unit (110) further has an objective holder (201) fixed on the carrier element (104), the objective holder being configured for holding the camera objective (101).
4. A method (500) for manufacturing a camera, comprising the steps of:
-providing (501) an optical unit having a camera objective with an objective tube and at least one optical lens;
-providing (502) the carrier element with an image sensor on a first side and with at least one electrical plug on a second side for constructing the electronic unit;
-the optical unit and the electronic unit are arranged (503) with each other such that the first side of the carrier element faces the optical unit;
-orienting (504) the camera objective towards the image sensor; and
-Connecting (505) the optical unit and the electronic unit in a connection area by means of a connecting element;
It is characterized in that the method comprises the steps of,
The method comprises a further step of forming (506) an injection-molded component, wherein the injection-molded component positively encloses the optical unit and the electronic unit in the connection region.
5. The method (500) of claim 4, wherein the optical unit further comprises an objective holder configured for holding the camera objective, wherein in the step of connecting (505) the objective holder of the optical unit is fixed on a carrier element of the electronic unit.
6. The method (500) of claim 5, wherein the step of orienting (504) occurs temporally after the step of connecting (505) and the step of constructing (506) the injection molded element; wherein the method comprises the further step of fixing (507) the camera objective lens on the objective lens holder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211642561.2A CN118233731A (en) | 2022-12-20 | 2022-12-20 | Camera for a motor vehicle and method for producing a camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211642561.2A CN118233731A (en) | 2022-12-20 | 2022-12-20 | Camera for a motor vehicle and method for producing a camera |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN118233731A true CN118233731A (en) | 2024-06-21 |
Family
ID=91503600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211642561.2A Pending CN118233731A (en) | 2022-12-20 | 2022-12-20 | Camera for a motor vehicle and method for producing a camera |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN118233731A (en) |
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2022
- 2022-12-20 CN CN202211642561.2A patent/CN118233731A/en active Pending
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