A hud assembly tool

Abstract

The utility model relates to the field of HUD part assembly, specifically is a kind of HUD assembly tool.The utility model provides tooling including bottom plate, support piece and press-down structure;Support piece includes at least two first support pieces and at least two second support pieces, for supporting HUD lower shell assembly;Wherein first support piece is set in the bottom plate along first direction, second support piece is set in the bottom plate along second direction, the first direction and second direction are perpendicular;Press-down structure is set on one side of bottom plate, for exerting pressure on the radiator on the support piece, to make the radiator closely adhere to the lower shell.Through the tooling provided by the utility model, the HUD assembly efficiency and qualification rate are improved.

Description

Technical Field

[0001] This utility model relates to the field of HUD component assembly technology, specifically a HUD assembly tooling. Background Technology

[0002] A head-up display (HUD) projects key information onto the driver's line of sight, allowing them to access information without looking down. A HUD typically includes a housing, comprising a lower housing and a light-transmitting cover. The lower housing has a cavity for housing components such as the image generation unit (PGU) and lens mechanism. The PGU includes a backlight module, which typically requires heat dissipation due to heat generation issues. In existing technology, a window is usually provided on the lower housing, positioned opposite the back of the backlight module, and a heat sink is installed at the window to cool the backlight module.

[0003] When assembling the lower shell and the heat sink, thermal grease needs to be applied to the heat-absorbing surface of the heat sink first. The heat sink is then fixed to the lower shell, and the heat-absorbing surface of the heat sink is in contact with the back of the backlight module. Because there is thermal grease between the heat-absorbing surface of the heat sink and the back of the backlight module, the heat sink floats on the surface of the lower shell during assembly, resulting in a gap between the heat sink and the lower shell, which prevents it from being properly locked in place. Utility Model Content

[0004] The purpose of this invention is to provide a HUD assembly fixture to solve the problems mentioned in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a HUD assembly fixture applied to a HUD lower shell assembly, the HUD lower shell assembly including a lower shell and a heat sink, the fixture including a base plate, support members and a pressing structure; including at least two first support members and at least two second support members for supporting the lower shell; wherein the first support members are disposed on the base plate along a first direction, and the second support members are disposed on the base plate along a second direction, the first direction and the second direction being perpendicular; the pressing structure is disposed on one side of the base plate for applying pressure to the heat sink on the support members so that the heat sink is tightly attached to the lower shell.

[0006] Furthermore, at least two first support members are arranged opposite to each other; a limiting groove is formed on the side of the first support member near the pressing structure; the limiting groove is adapted to the edge of the lower shell.

[0007] Furthermore, a material-receiving groove is provided on the side of the first support member away from the second support member, and the material-receiving groove passes through the top of the first support member and is connected to the limiting groove.

[0008] Furthermore, at least two of the second support members are arranged obliquely opposite each other, and the second support member 21 is provided with a limiting groove 23, which is adapted to the edge of the lower shell.

[0009] Furthermore, the pressing structure includes a mounting base, a driving component, and a pressing positioning component. The mounting base is disposed on the base plate and is used to support the driving component. The driving component is used to drive the pressing positioning component to move up and down and rotate. The pressing positioning component applies pressure to the heat sink so that the heat sink is pressed tightly against the lower shell.

[0010] Furthermore, the pressing positioning component includes a support plate, a support shaft, and a pressure block. One end of the support plate is detachably connected to the driving end of the driving component. The support shaft is detachably connected to the support plate via a connector. The pressure block is located at the end of the support shaft away from the support plate.

[0011] Furthermore, the support plate has a slot along its length, the support shaft is located in the slot, and the connector connects and locks the support plate and the support shaft.

[0012] Furthermore, the pressing positioning member is located at the edge of the base plate and between one of the first support members and the second support member.

[0013] Furthermore, the driving component is a cylinder, and the cylinder is equipped with a magnetic switch for controlling the working state of the cylinder according to the working stroke of the cylinder.

[0014] Furthermore, a displacement member is provided on the side of the base plate away from the support member, and the base plate is connected to the displacement member.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] The tooling provided by this utility model includes a base plate, a support member, and a pressing structure. The support member includes at least two first support members and at least two second support members for supporting the lower shell assembly of the HUD. The first support members are disposed on the base plate along a first direction, and the second support members are disposed on the base plate along a second direction, with the first and second directions perpendicular to each other. The pressing structure is disposed on one side of the base plate and is used to apply pressure to the heat sink on the support member, so that the heat sink is tightly attached to the lower shell. The tooling provided by this utility model improves the assembly efficiency and yield rate of the HUD. Attached Figure Description

[0017] Figure 1 This is a structural reference diagram of a HUD;

[0018] Figure 2 This is a perspective view of the present utility model;

[0019] Figure 3 This is a cross-sectional view of the present invention;

[0020] Figure 4 for Figure 2 A magnified view of a section at point A in the middle;

[0021] Figure 5 This is a perspective view of the pressing mechanism in this utility model;

[0022] In the picture:

[0023] 10. Head-up display; 101. Lower housing; 1011. Mounting ear assembly; 102. Light-transmitting cover; 103. Heat sink;

[0024] 1. Base plate; 2. Slider; 3. Slide rail; 4. Cylinder; 6. Support plate; 7. Slot; 8. Support shaft; 9. Pressure block; 12. Insert block one; 13. Insert block two; 14. Limiting plate; 15. Slot one; 16. Through hole one; 17. Through hole two; 18. Through hole three; 19. Mounting plate;

[0025] 20. First support component; 21. Second support component; 22. Limiting groove one; 23. Limiting groove two; 24. Positioning hole; 25. Material picking groove; 26. Mounting base. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Currently, head-up displays (HUDs) on the market can be divided into three main categories based on their imaging methods and forms: Combined HUDs (C-HUDs), Windshield 4HUDs (W-HUDs), and Augmented Reality HUDs (AR-HUDs). When a head-up display uses a TFT-LCD imaging method, the image generation unit includes a backlight module and an LCD display. Since the backlight module involves heat generation from the light source, a heat dissipation design is usually required to ensure image quality.

[0028] like Figure 1A head-up display 10 is provided, comprising a lower housing 101, a light-transmitting cover 102, a heat sink 103, an image generating unit, and a lens mechanism. The lower housing 101 has a receiving cavity and a window, with the window communicating with the receiving cavity. The heat sink 103 is detachably mounted on the lower housing 101 and covers the window. The image generating unit is disposed between the heat sink 103 and the lower housing 101, and is used to generate light carrying an image when powered on. The lens mechanism is housed within the receiving cavity to reflect and adjust the light carrying the image, projecting it to the outside from the light-transmitting cover 102 at the desired angle and direction. The lower housing 101 and the heat sink 103 are connected by screws. During production, locking holes are pre-drilled at corresponding positions on the lower housing 101 and the heat sink 103. During assembly, a screw-locking device secures the lower housing 101 and the heat sink 103 through these pre-drilled locking holes.

[0029] Meanwhile, when the lower shell 101 and the heat sink 103 are locked together, the image generation unit (PGU) and other components have been assembled in the cavity of the lower shell 101. The heat absorption surface of the heat sink 103 is attached to the back of the backlight module. The heat dissipation surface of the heat sink 103 is provided with multiple heat dissipation fins to dissipate heat from the backlight module. In order to further improve the heat dissipation efficiency, thermal grease is usually applied to the heat absorption surface of the heat sink 103 to accelerate heat conduction. Due to the presence of thermal grease, the heat sink 103 floats on the surface of the lower shell 101 during assembly, resulting in a gap between the heat sink 103 and the lower shell 101, which makes it impossible to lock together properly.

[0030] To solve the above problem, see Figures 1-5 This utility model provides a HUD assembly fixture, which is applied to the lower shell assembly of the HUD. The lower shell assembly of the HUD includes a lower shell 101 and a heat sink 103. The fixture includes: a base plate 1, a support member and a pressing structure.

[0031] The support includes at least two first support members 20 and at least two second support members 21 for supporting the lower shell 101; wherein the first support members 20 are disposed on the base plate 1 along a first direction, and the second support members 21 are disposed on the base plate 1 along a second direction, the first direction and the second direction being perpendicular; a pressing structure is disposed on one side of the base plate 1 for applying pressure to the radiator on the support member so that the radiator 103 is tightly attached to the lower shell.

[0032] It should be noted that the first support member 20 and the second support member 21 are plate-shaped structures. The first support member 20 is disposed on the base plate 1 along the first direction, which means that the long side of the first support member 20 is parallel to the first direction. The second support member 21 is disposed on the base plate 1 along the second direction, which means that the long side of the second support member 21 is parallel to the second direction.

[0033] Specifically, the first support member 20 and the second support member 21 can better support the lower shell 101 to be assembled stably. The first direction includes the short side direction of the base plate 1, and the second direction includes the long side direction of the base plate 1. Of course, the first direction may also include the long side direction of the base plate 1, and the second direction may also include the short side direction of the base plate 1, which is not limited here.

[0034] In one embodiment, at least two first support members 20 are arranged opposite to each other; a limiting groove 22 is formed on the side of the first support member 20 near the pressing structure; the limiting groove 22 is adapted to the edge of the lower shell 101.

[0035] It should be noted that, in order to maintain the stability of the support, at least two first support members 20 are provided, and the two first support members 20 are arranged opposite to each other on both sides of the base plate 1. The two first support members 20 are used to support the two side edges of the lower shell 101 to be assembled.

[0036] Specifically, when the lower shell 101 is placed on the first support member 20, since the heat sink 103 is located at the bottom of the lower shell 101, the lower shell 101 needs to be inverted and placed on the first support member 20 to expose the window on the lower shell 101 corresponding to the heat sink 103; wherein the lower shell 101 is provided with a hanging ear assembly 1011 on both sides, the hanging ear assembly 1011 matches the limiting groove 22, and the side of the hanging ear assembly 1011 away from the window fits against the limiting groove 22, thereby realizing the placement support and position limitation of the lower shell 101.

[0037] In one embodiment, the first support member 20 is provided with a material picking groove 25 on the side away from the second support member 21. The material picking groove 25 passes through the top of the first support member 21 and is connected to the limiting groove 22.

[0038] It should be noted that the ear-mount assembly 1011 matches the limiting groove 22, and the gap between the limiting groove 22 and the ear-mount assembly 1011 is small in order to limit the ear-mount assembly 1011, making it difficult to pick up the lower shell 101 and reducing efficiency. In order to improve the picking efficiency, a material picking groove 25 is added to the first support member 20. The material picking groove 25 is connected to the limiting groove 22, which makes it convenient for the user to pick up the lower shell 101 from the limiting groove 22. In order not to affect the limiting function of the limiting groove 22, the length of the material picking groove 25 is less than the length of the limiting groove 22.

[0039] In one embodiment, the side of the ear assembly 1011 away from the window also includes a positioning pin (not shown). In this case, in order to further improve the support stability, the first support member 20 also includes a positioning hole 24, which is located in the limiting groove 22 and is adapted to the positioning pin of the lower shell 101.

[0040] In one embodiment, at least two second support members 21 are arranged obliquely opposite each other, and the second support member 21 is provided with a limiting groove 23, which is adapted to the edge of the lower shell 101.

[0041] It should be noted that the second support member 21 further improves the stability of the lower shell 101. The second support members 21 are arranged in pairs opposite each other, that is, the second limiting groove 23 is also arranged opposite each other. The second limiting groove 23 is adapted to the two sides of the lower shell 101 away from the hanging ear assembly 1011, so that the edge of the lower shell 101 is placed on the second limiting groove 23.

[0042] In one embodiment, the pressing structure includes a mounting base 26, a driving member, and a pressing positioning member. The mounting base 26 is disposed on the base plate 1 and is used to support the driving member. The driving member is used to drive the pressing positioning member to move up and down and rotate. The pressing positioning member applies pressure to the heat sink 103 so that the heat sink 103 is pressed against the lower shell 101.

[0043] Specifically, the pressing and positioning component includes a support plate 6, a support shaft 8, and a pressure block 9. One end of the support plate 6 is detachably connected to the driving end of the driving component. The support shaft 8 is detachably connected to the support plate 6 via a connector. The pressure block 9 is located at the end of the support shaft 8 away from the support plate 6. The support plate 6 has a slot 7 along its length, and the support shaft 8 is located within the slot 7. The connector connects and locks the support plate 6 and the support shaft 8.

[0044] It should be noted that fasteners such as bolts and screws can be used for the connector. One end of the support shaft 8 near the support plate 6 passes through the slot 7, and the connector fixes this end of the support shaft 8 to the support plate 6. The support plate 6 is set parallel to the base plate 1, and the support shaft 8 is vertically fixed to the support plate 6. The pressure block 9 is set at the bottom of the support shaft 8. There can be one, two, or more support shafts 8, which are spaced apart along the length of the slot 7. Each support shaft 8 has a pressure block 9 at its bottom. The pressure block 9 can be made of soft material or covered with a protective pad to reduce contact damage to the radiator 103.

[0045] In one embodiment, the pressing positioning member is located at the edge of the base plate 1 and between one of the first support members 20 and the second support member 21.

[0046] Specifically, the first support member 20 is arranged along the first direction, and the second support member 21 is arranged along the second direction. There is a gap between the first support member 20 and the second support member 21. The pressing positioning member is located in one of the gaps near the window of the lower shell 101. The lower shell 101 is placed on the support member. At this time, the window corresponds to the pressing positioning member. Then, the heat sink 101 is placed at the window of the lower shell 101. The pressing structure provides pressure to attach the heat sink 103 to the lower shell 101, thereby realizing the pressing positioning of the heat sink 103 and facilitating the locking of the two.

[0047] In one embodiment, the driving component includes a cylinder 4, which is equipped with a magnetic switch for controlling the working state of the cylinder according to the working stroke of the cylinder.

[0048] Specifically, cylinder 4 includes a cylinder body and a rotary telescopic piston. The cylinder body has an internal working space, and the rotary telescopic piston is installed within this space. A magnetic element is located at the bottom of the rotary telescopic piston, and a magnetic switch is located on the cylinder body. When the rotary telescopic piston rotates or moves linearly to a preset position, the magnetic switch sends a signal, and the cylinder stops working. Alternatively, cylinder 4 can be a dual-piston model, such as a cylinder including a cylinder body, a rotary piston, and a telescopic piston. A first magnetic element is located on the rotary piston, and a second magnetic element is located on the telescopic piston. A first magnetic switch corresponding to the first magnetic element and a second magnetic switch corresponding to the second magnetic element are located within the cylinder body to detect the position of rotation and linear movement. Cylinder 4 is existing technology and is not limited here.

[0049] It should be noted that the driving component can also be implemented in other ways, as long as it achieves the functions of rotation and linear displacement.

[0050] In one embodiment, a displacement member is provided on the side of the base plate 1 away from the support member, and the base plate 1 is connected to the displacement member. The displacement member includes a slide rail 3 and a displacement driving mechanism (not shown). The slide rail 3 is located on the worktable of the equipment, and a slider 2 is provided at the bottom of the base plate 1, which is connected to the slide rail 3.

[0051] Specifically, the device is a screw-locking device, which has a locking worktable. A slide rail 3 is located on the worktable of the screw-locking device. A displacement drive mechanism (not shown in the figure) provides driving force to the slider 2, causing the slider 2 to move along the length direction of the slide rail 3. That is, the base plate 1 can move along the length direction of the slide rail 3, which facilitates the rapid positioning of the screw-locking device. The displacement drive mechanism adopts existing technology, such as a cylinder mechanism or a lead screw mechanism, etc., and is not limited here.

[0052] In one embodiment, the tooling further includes a first insertion block 12 and a second insertion block 13. The first insertion block 12 is located on the base plate 1. The mounting base 26 has a first slot 15, which is inserted into the first insertion block 12. The cylinder 4 has a mounting plate 19. The support plate 6 has a first through hole 16. The mounting base 26 has a second through hole 17. The first insertion block 12 has a third through hole 18. The second insertion block 13 is inserted into the first through hole 16, the second through hole 17, and the third through hole 18 in sequence. The mounting base 26 is inserted into the base plate 1. Then, the mounting base 26 is inserted into the first insertion block 12 from the end furthest from the limiting plate 14 until it contacts the limiting plate 14 and cannot be pushed further. The support plate 6 is then attached to the mounting base 26, with the first through hole 16 aligned with the second through hole 17. The second insertion block 13 is then inserted sequentially into the first through hole 16, the second through hole 17, and the third through hole 18, thus fixing the cylinder 4. The connection between the second insertion block 13 and the first through hole 16, the second through hole 17, and the third through hole 18 is tight, requiring a certain amount of external force to remove. Fixing the mounting base 26 to the base plate 1 via insertion and removal eliminates the need for repeated bolt rotation, improving installation efficiency.

[0053] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

[0054] It should be noted that if the utility model embodiment involves directional indicators such as up and down, the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture as shown in the figure. If the specific posture changes, the directional indicators will also change accordingly.

[0055] Furthermore, the meaning of "and / or" throughout the text includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution that simultaneously satisfies A and B. Additionally, if the utility model embodiments involve descriptions such as "first," "second," etc., these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" or "second" can explicitly or implicitly include at least one of those features. Furthermore, "multiple" refers to two or more.

[0056] Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of a person skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection of the utility model.

Claims

1. A HUD assembly fixture, applied to a HUD lower housing assembly, the HUD lower housing assembly comprising a lower housing and a heat sink, characterized in that: The tooling includes a base plate, support components, and a pressing structure; The support includes at least two first support members and at least two second support members for supporting the lower shell; The first support member is disposed on the base plate along the first direction, and the second support member is disposed on the base plate along the second direction, wherein the first direction and the second direction are perpendicular. A pressure-down structure, located on one side of the base plate, is used to apply pressure to the radiator on the support member so that the radiator is tightly attached to the lower shell.

2. The HUD assembly fixture according to claim 1, characterized in that: At least two first support members are arranged opposite each other; The first support member has a limiting groove on the side near the pressing structure; the limiting groove is adapted to the edge of the lower shell.

3. The HUD assembly fixture according to claim 2, characterized in that: The first support member has a material picking groove on the side away from the second support member, and the material picking groove passes through the top of the first support member and is connected to the limiting groove.

4. The HUD assembly fixture according to claim 3, characterized in that: At least two second support members are arranged obliquely opposite each other, and the second support member is provided with a limiting groove, which is adapted to the edge of the lower shell.

5. The HUD assembly fixture according to any one of claims 1-4, characterized in that: The pressing structure includes a mounting base, a driving component, and a pressing positioning component. The mounting base is located on the base plate and is used to support the driving component. The driving component is used to drive the pressing positioning component to move up and down and rotate. The pressing positioning component applies pressure to the heat sink so that the heat sink is pressed tightly against the lower shell.

6. The HUD assembly fixture according to claim 5, characterized in that: The pressing positioning component includes a support plate, a support shaft, and a pressure block. One end of the support plate is detachably connected to the driving end of the driving component. The support shaft is detachably connected to the support plate via a connector. The pressure block is located at the end of the support shaft away from the support plate.

7. The HUD assembly fixture according to claim 6, characterized in that: The support plate has a slot along its length, the support shaft is located in the slot, and the connector connects and locks the support plate and the support shaft.

8. The HUD assembly fixture according to claim 5, characterized in that: The pressing positioning member is located at the edge of the base plate and between one of the first support members and one of the second support members.

9. The HUD assembly fixture according to claim 5, characterized in that: The drive component includes a cylinder.

10. The HUD assembly fixture according to claim 1, characterized in that: The base plate has a displacement member on the side away from the support member, and the base plate is connected to the displacement member.

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