A head-up display

Abstract

The utility model discloses a head-up display, include: lower cover, lower cover is equipped with lower shell, upper shell, lower shell is equipped with through groove, and through groove extends along the length direction of lower shell, upper shell is fixedly connected with lower shell, and forms the containing space with lower shell together, upper shell is equipped with the crimping plate, and the crimping plate extends along the height direction of lower shell, and one end is located in the side of upper shell close to lower shell, and the other end extends to the through groove, the wire harness is located in the containing space, and the wire harness extends along the width direction of lower shell, and part wire harness is located in the through groove, the other end of crimping plate and wire harness abut, upper cover, along the height direction, and upper cover is located in the upper of lower cover, and is fixedly connected with upper shell. The utility model can solve the problem that the internal wire harness fixed loss or improper fixation leads to the skin wear and tear in the existing head-up display.

Description

Technical Field

[0001] This utility model relates to the technical field of head-up displays, and particularly to a head-up display. Background Technology

[0002] As automotive interior design evolves towards novelty and technological sophistication, various functional modules, such as motion modules and lighting modules, are widely used in automotive interior electronic products, particularly in head-up displays. These modules are typically connected to the main circuit board via wiring harnesses to achieve power transmission and signal communication. Consequently, the reliability of the wiring harnesses for these electronic modules has become an increasingly critical issue in the structural design of electronic products.

[0003] Currently, there are two main traditional methods for installing wiring harnesses in head-up displays (HUDs): First, no additional securing is applied after the wiring harness is connected. This method has significant drawbacks: in the vibration environment of a moving vehicle, the wiring harness is prone to swaying and rubbing against surrounding plastic parts, producing abnormal noise; long-term swaying can also cause loosening between the wiring harness and its connection terminals, leading to poor contact and malfunction of related modules. Second, a hook structure is designed on the plastic parts near the wiring harness to hold it in place. While this method can limit the swaying of the wiring harness, its drawback is that the outer sheath of the wiring harness will continuously rub against the hard edges of the hooks, which may wear through the insulation and expose the internal copper wires after long-term use. Under complex operating conditions such as humidity and heat, this can easily cause a short circuit, resulting in the loss of function of the corresponding module.

[0004] Therefore, there is an urgent need for a head-up display that can effectively secure the internal wiring harness in order to solve the problems of internal wiring harness wear and abnormal noise. Utility Model Content

[0005] The purpose of this invention is to solve the problem of wear and tear on the outer sheath caused by missing or improperly fixed internal wiring harnesses in existing head-up displays.

[0006] To address the aforementioned technical problems, this utility model discloses a head-up display, comprising:

[0007] The lower cover includes a lower shell and an upper shell. The lower shell has a through groove that extends along the length of the lower shell. The upper shell is fixedly connected to the lower shell, forming an accommodating space together. The upper shell has a pressing plate that extends along the height of the lower shell, with one end located on the side of the upper shell near the lower shell and the other end extending into the through groove. A wire harness is disposed in the accommodating space, extending along the width of the lower shell, with a portion of the wire harness disposed within the through groove. The other end of the pressing plate abuts against the wire harness.

[0008] The upper cover, along the height direction, is located above the lower cover and is fixedly connected to the upper shell.

[0009] Using the above technical solution, after the upper and lower covers are fixedly connected, the through groove of the lower cover cooperates with the pressing plate of the upper cover to form a clamping force on the wire harness placed in the through groove. This stably fixes the wire harness, preventing it from moving freely and avoiding surface wear caused by wire harness movement. The entire assembly process is simple, requiring only the placement of a portion of the wire harness in the through groove to fix the upper and lower covers together, resulting in a reliable fixing effect.

[0010] In addition, both the through groove and the crimping plate are set in a manner that is approximately perpendicular to the extension direction of the wire harness, which can effectively suppress the radial rotation of the wire harness and avoid the instability phenomenon commonly found in parallel crimping methods.

[0011] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a head-up display, wherein the other end of the pressing plate is provided with a plurality of protrusions, and the plurality of protrusions are arranged along the length direction.

[0012] By employing the above technical solution, multiple protrusions are set along the length of the crimping plate, transforming the crimping surface from a completely flat plane into multiple discrete linear contact points. When crimping the wire harness, on the one hand, the effective crimping force is significantly increased through multi-point stress concentration, preventing wire harness movement; on the other hand, the actual contact and friction area of ​​the wire harness sheath is reduced, effectively lowering the risk of wear.

[0013] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a head-up display, wherein the protrusion is arc-shaped at one end near the wire harness.

[0014] The above technical solution uses an arc-shaped protrusion end to form a soft line or surface contact when crimping the wire harness, which can effectively disperse the compressive stress and avoid damaging or cutting the outer sheath of the wire harness.

[0015] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a head-up display, wherein the through groove has a first side wall, a second side wall, and a bottom wall, the first side wall and the bottom wall form an angle α, and the second side wall and the bottom wall form an angle b, wherein 90°≤α<180° and 90°≤b<180°.

[0016] By adopting the above technical solution, the sidewall angle design of the through groove (i.e., both a and b are not less than 90° and less than 180°) forms an open structure that is wider at the top and narrower at the bottom. This serves as a guide during assembly, facilitating the smooth insertion of the wire harness into the through groove. Furthermore, the V-shaped structure formed by the two sidewalls effectively accommodates the wire harness, and when the crimping plate presses down, it effectively wraps around and limits the wire harness, preventing lateral displacement.

[0017] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a head-up display, wherein the top ends of the first sidewall and the second sidewall are provided with rounded corners along the height direction.

[0018] By adopting the above technical solution, the rounded corner design can effectively prevent sharp edges from scratching the wire harness during assembly.

[0019] According to another specific embodiment of the present invention, a head-up display is disclosed, wherein a reinforcing rib is provided on the side of the pressing plate along the width direction, and one end of the reinforcing rib is connected to the upper shell along the height direction.

[0020] By adopting the above technical solution, reinforcing ribs are provided on the side of the crimping plate and integrally connected to the top cover along the height direction, enhancing the structural rigidity and bending resistance of the crimping plate. This ensures that the crimping plate itself is not easily deformed when it presses down and locks the wire harness, and can transmit the clamping force to the wire harness more evenly and stably, thereby effectively improving the reliability of long-term use.

[0021] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a head-up display, wherein the length of the through slot is greater than the diameter of the wire harness along the length direction.

[0022] By adopting the above technical solution, by making the length of the through groove greater than the diameter of the wire harness, it not only prevents the wire harness from rolling off during installation, but also provides leeway for the wire harness to move during vibration, thereby preventing the wire harness from falling off the through groove.

[0023] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a head-up display, wherein the length of the crimping plate is greater than the diameter of the wire harness along the length direction.

[0024] By employing the above technical solution, ensuring that the length of the crimping plate is greater than the diameter of the wire harness, a sufficiently long contact area between the crimping plate and the wire harness is guaranteed, preventing excessive local stress from damaging the wire harness sheath. Furthermore, it enhances the stability of the crimping process; even if the wire harness shifts along its length, the crimping state can be effectively maintained, preventing crimping failure and thus improving the reliability of the fixation. Attached Figure Description

[0025] Figure 1 A perspective view of the head-up display in an embodiment of the present invention is shown;

[0026] Figure 2 Show Figure 1 A cross-sectional view along the AA direction;

[0027] Figure 3This diagram shows the structure of the through groove, the crimping plate, and the wire harness in an embodiment of the present invention.

[0028] Figure 4 This invention illustrates the three-dimensional shape of the lower cover in an embodiment of the present invention. Figure 1 ;

[0029] Figure 5 Show Figure 4 Enlarged view of section B;

[0030] Figure 6 This invention illustrates the three-dimensional shape of the lower cover in an embodiment of the present invention. Figure 2 ;

[0031] Figure 7 This diagram illustrates the lower cover and wiring harness in an embodiment of the present invention. Figure 1 ;

[0032] Figure 8 This diagram illustrates the lower cover and wiring harness in an embodiment of the present invention. Figure 2 ;

[0033] Figure 9 A perspective view of the upper cover in an embodiment of this utility model is shown;

[0034] Figure 10 Show Figure 9 Enlarged view of section C. Attached image description:

[0036] Head-up display 1000;

[0037] Bottom cover 100;

[0038] Lower shell 110; through groove 111; first side wall 1111; second side wall 1112; bottom wall 1113; rounded corner 1114;

[0039] Upper shell 120; Press plate 121; Protrusion 1211; Reinforcing rib 1212;

[0040] Capacity: 130;

[0041] Wire harness 140;

[0042] Top cover 200. Detailed Implementation

[0043] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Although the description of this utility model will be presented in conjunction with preferred embodiments, this does not mean that the features of this utility model are limited to this embodiment. On the contrary, the purpose of describing the utility model in conjunction with the embodiments is to cover other options or modifications that may be derived based on the claims of this utility model. To provide a deep understanding of this utility model, many specific details will be included in the following description. This utility model may also be implemented without using these details. Furthermore, to avoid confusion or obscuring the focus of this utility model, some specific details will be omitted in the description. It should be noted that, without conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0044] It should be noted that in this specification, similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0045] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0046] The terms “first”, “second”, etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0047] In the description of this embodiment, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment based on the specific circumstances.

[0048] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0049] refer to Figure 1 , Figure 2This application provides a head-up display 1000, including a lower cover 100 and an upper cover 200. The upper cover 200 is located above the lower cover 100 and is fixedly connected to the upper shell 120 described below. The lower cover 100 and the upper cover 200 together form a cavity (not shown in the figure) for integrating components such as a reflector and a magnifying device. During operation, an image generation unit located within the lower cover 100 generates an image; subsequently, the image is reflected by the reflector, amplified by the magnifying device, passes through the optical glass located in the upper cover 200, and is finally projected onto the windshield of a car, thereby forming a virtual image.

[0050] refer to Figure 2 , Figure 3 In this embodiment, the lower cover 100 includes: a lower shell 110, an upper shell 120, a receiving space 130, and a wiring harness 140. The lower shell 110 is provided with a through groove 111, which extends along the length of the lower shell 110. Figure 3 Extending in the X direction. The upper shell 120 and the lower shell 110 are threaded together to form a receiving space 130, which can accommodate the through groove 111 and the crimping plate 121 and wire harness 140 described below. The upper shell 120 is provided with a crimping plate 121, which extends along the height direction of the lower shell 110 (in the X direction). Figure 3 Extending in the Z direction, one end is located on the side of the upper shell 120 near the lower shell 110, and the other end extends into the through groove 111.

[0051] In some possible implementations, the upper shell 120 and the lower shell 110 may not be connected by a threaded connection, but may be fixedly connected by snap-fit, interference fit, welding or other methods. This application does not limit the implementation of these methods.

[0052] refer to Figure 2 , Figure 3 In this embodiment, the wire harness 140 is along the width direction of the lower housing 110 ( Figure 3 The wire harness 140 extends in the Y direction and is located within the accommodating space 130. Part of the wire harness 140 is located within the through groove 111. The other end of the crimping plate 121 abuts against the wire harness 140 and presses the wire harness 140. The X, Y, and Z axes are perpendicular to each other.

[0053] After the upper shell 120 and lower shell 110 are fixedly connected, the through groove 111 of the lower shell 110 cooperates with the pressing plate 121 of the upper shell 120 to form a clamping force on the wire harness 140 placed in the through groove 111. This stably fixes the wire harness 140, preventing it from moving freely and avoiding surface wear caused by the wire harness 140 shifting. The entire assembly process is simple; it only requires placing part of the wire harness 140 in the through groove 111 to fix the upper shell 120 and lower shell 110 together, and the fixing effect is reliable.

[0054] refer to Figure 3In this embodiment, along the length direction, the length L1 of the through groove 111 is ( Figure 3 As shown in L1, the diameter d of the 140 wire harness is 50mm. Figure 3 (As shown in d) is 8mm.

[0055] In some possible implementations, the length L1 is not limited to 50mm, but can be 25mm, 30mm, 40mm, etc., and the diameter d is not limited to 8mm, but can be 5mm, 10mm, 20mm, etc., as long as the length L1 of the through slot 111 is greater than the diameter d of the wire harness 140, and can be set according to actual needs.

[0056] By making the length of the through groove 111 greater than the diameter of the wire harness 140, the wire harness 140 is prevented from rolling off during installation, and a margin is provided for the wire harness 140 to move during vibration, thereby preventing the wire harness 140 from falling out of the through groove 111.

[0057] refer to Figure 3 In this embodiment, along the length direction, the length L2 of the pressing plate 121 is ( Figure 3 The value (as shown in L2) is 60mm.

[0058] In some possible implementations, the length L2 may include, but is not limited to, 60 mm, and may be 25 mm, 30 mm, 40 mm, etc., as long as the length L2 of the through slot 111 is greater than the diameter d of the wire harness 140. It can be set according to actual needs.

[0059] By ensuring that the length of the crimping plate 121 is greater than the diameter of the wire harness 140, a sufficiently long contact area between the crimping plate 121 and the wire harness 140 is ensured, preventing excessive local stress from damaging the outer sheath of the wire harness 140. Furthermore, the stability of the crimping is enhanced; even if the wire harness 140 shifts along its length, the crimping state can be effectively maintained, preventing crimping failure and thus improving the reliability of the fixation.

[0060] refer to Figure 4 , Figure 5 , Figure 6 In this embodiment, the through groove 111 has a first side wall 1111, a second side wall 1112, and a bottom wall 1113. The first side wall 1111 and the bottom wall 1113 form an angle α, and the second side wall 1112 and the bottom wall 1113 form an angle b, wherein the angle α is 120° and the angle b is 90°.

[0061] In some possible implementations, the included angle α is not limited to 120°, and can be 90°, 110°, 140°, 160°, etc., and the included angle β is not limited to 90°, and can be 110°, 120°, 140°, 160°, etc., as long as 90°≤a<180° and 90°≤b<180° are satisfied. The implementation of this application does not limit this.

[0062] The sidewall angle design of the through groove 111 (i.e., both a and b are not less than 90° and less than 180°) forms an open structure that is wider at the top and narrower at the bottom. This serves as a guide during assembly, facilitating the smooth insertion of the wire harness 140 into the through groove 111. Furthermore, the V-shaped structure formed by the two sidewalls effectively accommodates the wire harness 140, and when the crimping plate 121 presses down, it effectively wraps around and limits the wire harness 140, preventing lateral displacement.

[0063] refer to Figure 4 , Figure 5 , Figure 6 In this embodiment, the top ends of the first sidewall 1111 and the second sidewall 1112 are both provided with rounded corners 1114 along the height direction. The design of the rounded corners 1114 can effectively prevent sharp edges from scratching the wire harness 140 during assembly.

[0064] In some possible implementations, the first sidewall 1111 and the second sidewall 1112 may not have rounded corners 1114, depending on the included angle between the first sidewall 1111 and the second sidewall 1112.

[0065] refer to Figure 7 , Figure 8 In this embodiment, the extension direction of the wire harness 140 is approximately perpendicular to the extension direction of the through groove 111, and the wire harness 140 abuts against the bottom wall 1113, which can effectively suppress the radial rotation of the wire harness 140 and avoid the unstable crimping phenomenon commonly found in parallel crimping methods.

[0066] In some possible implementations, the extension direction of the wire harness 140 may also be the same as the extension direction of the through groove 111, as long as the through groove 111 can accommodate and fix the wire harness 140. This application does not limit this.

[0067] refer to Figure 9 , Figure 10 In this embodiment, the crimping plate 121 has a rectangular plate-like structure. In some possible embodiments, the shape of the crimping plate 121 may include, but is not limited to, a rectangle, and may be a trapezoid, an arc, a cylinder, etc., as long as it can press the wire harness 140. This application does not limit this aspect.

[0068] refer to Figure 9 , Figure 10In this embodiment, the other end of the pressing plate 121 is provided with 11 protrusions 1211, which are arranged along the length direction. The 11 protrusions 1211 are spaced apart along the length direction, and the distance between two adjacent protrusions 1211 is 1 mm.

[0069] In some possible implementations, the number of protrusions 1211 includes, but is not limited to, 11, but can be 2, 3, 5, 20, or more, depending on the length of the pressing plate 121. This application does not limit this.

[0070] In some possible implementations, the distance between two adjacent protrusions 1211 is not limited to 1 mm, but can be 0.5 mm, 2 mm, 3 mm, etc., as long as it is less than the diameter d of the wire harness 140. Figure 3 (As you can see)

[0071] In some possible implementations, the multiple protrusions 1211 may also be arranged continuously along the length direction, which is sufficient to fix the wire harness 140.

[0072] By setting multiple protrusions 1211 along the length of the crimping plate 121, the crimping surface is transformed from a flat plane into multiple discrete linear contact points. When crimping the wire harness 140, on the one hand, the effective crimping force is significantly increased by multi-point stress concentration, preventing the wire harness 140 from shifting; on the other hand, the actual contact and friction area of ​​the outer sheath of the wire harness 140 is reduced, effectively reducing the risk of wear.

[0073] refer to Figure 9 , Figure 10 In this embodiment, the end of the protrusion 1211 near the wire harness 140 is semi-circular, and the height of the protrusion 1211 (i.e. the radius of the protrusion) is 0.5mm.

[0074] In some possible implementations, the shape of the end of the protrusion 1211 includes, but is not limited to, a semi-circle, and may be arc-shaped, flat, corrugated, etc. The embodiments of this application do not limit this.

[0075] In some possible implementations, the height of the protrusion 1211 may include, but is not limited to, 0.5 mm, and may be 1 mm, 3 mm, 6 mm, etc., as long as it is greater than or equal to 0.5 mm and less than the diameter d of the wire harness 140. It can be adjusted adaptively according to actual needs.

[0076] The end of the protrusion 1211 is designed to be arc-shaped, forming a soft line contact or surface contact when crimping the wire harness 140, which can effectively disperse the compressive stress and avoid crushing or cutting the outer sheath of the wire harness 140.

[0077] refer to Figure 9 , Figure 10In this embodiment, a reinforcing rib 1212 is provided on the side of the pressing plate 121 along the width direction, and one end of the reinforcing rib 1212 is connected to the upper shell 120 along the height direction. The reinforcing rib 1212 is triangular.

[0078] In some possible implementations, the shape of the reinforcing rib 1212 may include, but is not limited to, a triangle, and may be a rectangle, an arc, an I-shape, etc., as long as it can enhance the rigidity of the pressing plate 121. The implementation of this application does not limit this.

[0079] By providing reinforcing ribs 1212 on the side of the crimping plate 121 and integrally connecting the reinforcing ribs 1212 with the upper shell 120 along the height direction, the structural rigidity and bending resistance of the crimping plate 121 are enhanced. This ensures that the crimping plate 121 itself is not easily deformed when it presses down and locks the wire harness 140, and can transmit the clamping force to the wire harness 140 more evenly and stably, thereby effectively improving the reliability of long-term use.

[0080] Although the present invention has been illustrated and described with reference to certain preferred embodiments, those skilled in the art should understand that the above description is a further detailed explanation of the present invention in conjunction with specific embodiments, and should not be construed as limiting the specific implementation of the present invention to these descriptions. Those skilled in the art can make various changes in form and detail, including some simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. A heads-up display, characterized in that, include: The lower cover comprises a lower shell and an upper shell. The lower shell has a through groove extending along its length. The upper shell is fixedly connected to the lower shell, forming a receiving space together. The upper shell has a pressing plate extending along the height of the lower shell, with one end located on the side of the upper shell near the lower shell and the other end extending into the through groove. A wire harness is located in the receiving space, extending along the width of the lower shell, with a portion of the wire harness located within the through groove. The other end of the pressing plate abuts against the wire harness. The upper cover, along the height direction, is located above the lower cover and is fixedly connected to the upper shell.

2. The head-up display as claimed in claim 1, characterized in that, The other end of the pressing plate is provided with a plurality of protrusions, which are arranged along the length direction.

3. The head-up display as described in claim 2, characterized in that, The protrusion is arc-shaped at the end near the wire harness.

4. The head-up display as claimed in claim 1, characterized in that, The through groove has a first sidewall, a second sidewall, and a bottom wall. The first sidewall and the bottom wall form an angle α, and the second sidewall and the bottom wall form an angle b, wherein 90°≤a<180° and 90°≤b<180°.

5. The head-up display as described in claim 4, characterized in that, Along the height direction, the top ends of both the first sidewall and the second sidewall are rounded.

6. The head-up display as claimed in claim 1, characterized in that, Along the width direction, the side of the pressing plate is provided with reinforcing ribs, and along the height direction, one end of the reinforcing ribs is connected to the upper shell.

7. The head-up display as claimed in claim 1, characterized in that, Along the length direction, the length of the through groove is greater than the diameter of the wire harness.

8. The head-up display as claimed in claim 1, characterized in that, Along the length direction, the length of the crimping plate is greater than the diameter of the wire harness.

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