Sunlight backflow prevention detection device for HUD (Head Up Display) plane mirror

Abstract

The utility model discloses a sunlight backflow prevention detection device for an HUD (Head Up Display) plane mirror, and relates to the related technical field of HUD production. The device comprises a detection chamber, a material placing frame, a supporting frame and a side plate, a convex lens is fixed on the upper part in the detection chamber, the material placing frame is fixed on the edge of the upper part of the peripheral surface of the detection chamber, the supporting frame is arranged at the inner bottom of the material placing frame, a full-spectrum light source is arranged above the material placing frame, and the full-spectrum light source is arranged right above the detection chamber. The top end of the detection chamber is open, a plurality of cooling fins are fixed to the lower portion of the peripheral side of the detection chamber, the distance between every two vertically adjacent cooling fins is equal, side plates are arranged on the two sides of the detection chamber, and the two sides of each cooling fin are fixed to the two side plates respectively. Through the arrangement of the detection chamber, the discharging frame, the supporting frame and the side plates, the problems that the sunshine-proof performance detection speed of the HUD plane mirror is low, and the sunshine-proof performance detection time interval of the two HUD plane mirrors is long are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field related to HUD production, and in particular relates to a HUD plane reflector anti-sunlight backflow detection device. Background Art

[0002] HUD is a technology that projects driving-related information onto a transparent screen in front of the driver's line of sight, allowing the driver to obtain information without lowering their head, improving driving safety. In a HUD system, a flat mirror is typically used to reflect the image on the display onto the front windshield and adjust the image size and position so that the driver can comfortably see the information. The mirror reflects visible light but transmits infrared light, which is absorbed by the HUD device. The more infrared light that transmits, the less energy is reflected to the PGU. Therefore, the higher the transmission temperature, the better the sun protection performance. The infrared transmittance of the flat mirror needs to be carefully tested after production, but it still has the following disadvantages in actual use:

[0003] When testing the anti-sunlight performance of the HUD flat reflector, the temperature of the reflected sunlight is directly tested. During the test, the reflected sunlight contains less infrared rays, and the test process requires a long waiting time, which affects the efficiency of the HUD flat reflector anti-sunlight performance test;

[0004] When testing the sun protection performance of the HUD plane reflector, after the test is completed, it is necessary to wait for the temperature in the testing equipment to drop to room temperature before retesting. However, the heat release is relatively slow during the temperature drop process, and it takes longer to complete. The time interval between the two HUD plane reflector sun protection performance tests is relatively long. Utility Model Content

[0005] The purpose of the utility model is to provide a HUD plane reflector anti-sunlight backflow detection device. By setting a detection chamber, a material discharge frame, a support frame and side panels, the utility model solves the problems of slow detection speed of the HUD plane reflector's anti-sunlight performance and long time interval between two HUD plane reflectors' anti-sunlight performance detections.

[0006] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0007] The utility model is a HUD plane reflector anti-sunlight backflow detection device, comprising a detection chamber, a discharge frame, a support frame and side panels, a convex lens is fixed to the upper part of the detection chamber, a discharge frame is fixed at the upper edge of the outer peripheral surface of the detection chamber, a support frame is provided at the inner bottom of the discharge frame, a full-spectrum light source is provided above the discharge frame, the full-spectrum light source is provided just above the detection chamber, the top of the detection chamber is open, a plurality of heat sinks are fixed to the lower part of the peripheral side of the detection chamber, and the spacing between the upper and lower adjacent heat sinks is equal, side panels are provided on both sides of the detection chamber, and the two sides of the heat sink are respectively fixed to the two side panels. When working, the convex lens is fixed therein through the detection chamber, the support frame is supported therein through the discharge frame, the UHD flat display mirror to be detected is supported in the discharge frame through the support frame, and the two sides of all the heat sinks are connected together through the two side panels.

[0008] Furthermore, a thermal switch is fixed through the bottom of the detection chamber, a heat-absorbing film is fixed on the surface of the thermal switch in the detection chamber, and the bottom end of the heat-absorbing film is fixed to the bottom of the detection chamber. After the detection chamber is opened by the thermal switch, the display light is lit.

[0009] Furthermore, an L-shaped support frame is fixed on one side of the material feeding frame, and the L-shaped support frame is arranged above the material feeding frame and has a full-spectrum light source fixed at one end. A display light is fixed in the center of a vertical surface adjacent to the material feeding frame and the L-shaped support frame, and the material feeding frame supports the full-spectrum light source above it through the L-shaped support frame.

[0010] Furthermore, the four corners of the bottom of the support frame are fixed with plug rods, and the four corners of the bottom of the discharge frame are fixed with sockets. The plug rods are inserted into the sockets, and the support frame is inserted into the sockets through the plug rods, so that when the pushing frame is lifted, it drives the discharge frame to rise.

[0011] Furthermore, a push frame is fixed to the bottom ends of all the insertion rods, and the push frame is movably connected to the peripheral side of the detection chamber. When the push frame rises, it drives the insertion rods to rise, so that the support blocks are also driven to rise.

[0012] Furthermore, an air inlet frame is commonly fixed at one end of all the heat sinks, a built-in fan is fixed on the inner wall of the air inlet frame, and the air inlet frame is fixed between two side panels. The heat sink is started by the built-in fan in the air inlet frame, and the air is drawn into the air inlet frame and discharged between the heat sinks to accelerate the heat dissipation of the detection room.

[0013] The utility model has the following beneficial effects:

[0014] The utility model solves the problem of slow detection speed of the anti-sunlight performance of the HUD plane reflector by arranging a detection chamber, a discharge frame and a support frame. The HUD plane reflector to be detected is placed in the discharge frame and then supported on the top of the support frame in the discharge frame. Then, when the full-spectrum light source is started, timing is performed. At this time, the infrared light of the light source passes through the HUD plane reflector to be detected, enters the convex lens and is focused on the heat-absorbing film. After the heat-absorbing film absorbs enough heat, the thermal switch is turned on, so that the display light is lit. The time difference between the turning on of the thermal switch and the turning on of the full-spectrum light source is recorded and compared with the time measured by the standard HUD plane reflector, so that the anti-sunlight performance of the HUD plane reflector can be measured. When working, the anti-sunlight performance of the plane reflector can be detected more quickly by using the convex lens.

[0015] The utility model solves the problem of long time interval for detecting the sun-proof performance of two HUD plane reflectors by providing a detection chamber and side panels. When the heat sink is working, the built-in fan is started. When the built-in fan is working, it sucks air into the air inlet frame and blows it onto the heat sink between the two side panels. The side panels prevent the air from dispersing outside the heat sink, so that the temperature in the detection chamber is quickly reduced, and the rate at which the detection chamber returns to normal temperature is greatly improved, which reduces the time required for cooling the detection chamber, and shortens the time interval for detecting the sun-proof performance of the two HUD plane reflectors. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 A stereoscopic diagram of the assembly structure of a HUD flat reflector anti-sunlight backflow detection device;

[0018] Figure 2 It is a partial cross-sectional structural perspective diagram of the detection room;

[0019] Figure 3 It is a three-dimensional diagram of the discharge frame structure;

[0020] Figure 4 It is a three-dimensional diagram of the support frame structure;

[0021] Figure 5 This is a three-dimensional diagram of the side panel structure.

[0022] Reference numerals:

[0023] 1. Detection chamber; 101. Thermal switch; 102. Heat-absorbing film; 103. Convex lens; 2. Feeding frame; 201. Socket; 202. L-shaped support frame; 203. Full-spectrum light source; 3. Support frame; 301. Insertion rod; 302. Push frame; 4. Side panel; 401. Heat sink; 402. Air inlet frame; 403. Built-in fan; 5. Display light. DETAILED DESCRIPTION

[0024] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Specific embodiment 1

[0025] See also Figure 1-5 The utility model is a HUD plane reflector anti-sunlight backflow detection device, including a detection chamber 1, a discharge frame 2, a support frame 3 and a side plate 4. A convex lens 103 is fixed on the upper part of the detection chamber 1. When the detection chamber 1 is working, the convex lens 103 is fixed therein to collect the infrared light transmitted through the HUD plane reflector to be tested onto the heat-absorbing film 102. A discharge frame 2 is fixed at the upper edge of the outer peripheral surface of the detection chamber 1. The HUD plane reflector to be tested is provided through the discharge frame 2. A support frame 3 is provided at the inner bottom of the discharge frame 2. When the support frame 3 is working, the HUD plane reflector to be tested is supported thereon. A full-spectrum light source 203 is provided above the discharge frame 2. The full-spectrum light source 203 is provided. It is placed directly above the detection chamber 1, and the top of the detection chamber 1 is open. When the discharge frame 2 is working, the HUD plane reflector placed in the discharge frame 2 is irradiated by the full-spectrum light source 203, and the top of the detection chamber 1 is open, so that the infrared light passing through the HUD plane reflector is irradiated on the heat-absorbing film 102. A number of heat sinks 401 are fixed to the lower part of the peripheral side of the detection chamber 1, and the spacing between the upper and lower adjacent heat sinks 401 is equal. Side panels 4 are provided on both sides of the detection chamber 1, and both sides of the heat sink 401 are respectively fixed on the two side panels 4. When working, the heat sink 401 dissipates heat for the detection chamber 1 when air passes through, and the two sides of the heat sink 401 are closed by the side panels 4.

[0026] Specifically, a thermal switch 101 is fixed through the bottom of the detection chamber 1. A heat-absorbing film 102 is fixed on the surface of the thermal switch 101 in the detection chamber 1. The bottom end of the heat-absorbing film 102 is fixed to the bottom of the detection chamber 1. After the heat-absorbing film 102 absorbs enough heat, the thermal switch 101 is turned on, causing the display light 5 to light up. The light transmittance performance of the HUD plane reflector is detected by the time difference between the thermal switch 101 and the turning on of the full-spectrum light source 203.

[0027] Furthermore, an L-shaped support frame 202 is fixed to one side of the discharge frame 2, and the L-shaped support frame 202 is arranged above the discharge frame 2 and has a full-spectrum light source 203 fixed at one end. A display light 5 is fixed in the center of a vertical surface adjacent to the discharge frame 2 and the L-shaped support frame 202. The discharge frame 2 fixes the full-spectrum light source 203 directly above the detection chamber 1 through the L-shaped support frame 202. After the display light 5 is lit, it is determined that the temperature on the thermal switch 101 has risen to the level required for detection.

[0028] Furthermore, the four corners of the bottom of the support frame 3 are fixed with insertion rods 301, and the four corners of the bottom of the discharge frame 2 are fixed with sockets 201. The insertion rods 301 are inserted into the sockets 201, and the support frame 3 is inserted into the sockets 201 through the insertion rods 301. When the pushing frame 302 is pushed, the support frame 3 is driven to rise.

[0029] Furthermore, a push frame 302 is fixed to the bottom ends of all the insertion rods 301, and the push frame 302 is movably connected to the side of the detection chamber 1. By pushing the push frame 302 to rise, the insertion rods 301 are driven to rise. When the insertion rods 301 rise, the support frame 3 is driven to rise, so that the support frame 3 and the HUD plane reflector to be tested rise to a suitable height.

[0030] The operation process of this embodiment is as follows: when working, first place the HUD plane reflector to be tested in the discharge frame 2, and then support it on the top of the support frame 3 in the discharge frame 2. Then, while starting the full-spectrum light source 203, timing is performed. At this time, the infrared light of the light source passes through the HUD plane reflector to be tested, enters the convex lens 103 and is focused on the heat absorption film 102. After the heat absorption film 102 absorbs enough heat, the thermal switch 101 is turned on, so that the display light 5 is lit. The time difference between the opening of the thermal switch 101 and the opening of the full-spectrum light source 203 is recorded, and the confirmation of multiple standards is recorded. Determine the anti-sunlight performance of the HUD plane reflector according to the above testing work. Determine the lighting time of the display light 5 and record it. Then compare the test results of the HUD plane reflector in subsequent tests with the above standard data to determine the anti-sunlight performance of the tested HUD plane reflector. After completing the test, push the push frame 302 to rise, drive the insertion rod 301 to rise, and when the insertion rod 301 rises, it drives the support frame 3 to rise, so that the support frame 3 and the tested HUD plane reflector rise to a suitable height. Then remove the tested HUD plane reflector to complete the work. Specific embodiment 2

[0031] See also Figure 1 、 25. On the basis of the specific embodiment 1, an air inlet frame 402 is fixed to one end of all the heat sinks 401, and a built-in fan 403 is fixed on the inner wall of the air inlet frame 402. The air inlet frame 402 is fixed between the two side panels 4. When the heat sink 401 is working, the built-in fan 403 is started. When the built-in fan 403 is working, the air is sucked into the air inlet frame 402 and then blown onto the heat sink 401 between the two side panels 4. The side panels 4 prevent the air from dispersing outside the heat sink 401, so that the temperature in the detection chamber 1 is quickly reduced, the rate at which the detection chamber 1 returns to normal temperature is greatly improved, and the time required for cooling in the detection chamber 1 is reduced.

[0032] The operating process of this embodiment is as follows: when the heat sink 401 is working, the built-in fan 403 is started. When the built-in fan 403 is working, the air is sucked into the air inlet frame 402 and then blown onto the heat sink 401 between the two side panels 4. The side panels 4 prevent the air from dispersing outside the heat sink 401, so that the temperature in the detection chamber 1 is quickly reduced, and the rate of recovery to normal temperature in the detection chamber 1 is greatly improved, thereby reducing the time required for cooling in the detection chamber 1.

[0033] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0034] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments do not describe all details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A HUD plane reflector anti-sunlight backflow detection device, comprising a detection chamber (1), a discharge frame (2), a support frame (3) and a side plate (4), characterized in that: A convex lens (103) is fixed to the upper inner portion of the detection chamber (1), a material discharging frame (2) is fixed to the upper edge of the outer peripheral surface of the detection chamber (1), a support frame (3) is provided at the inner bottom of the material discharging frame (2), a full-spectrum light source (203) is provided above the material discharging frame (2), the full-spectrum light source (203) is provided directly above the detection chamber (1), the top of the detection chamber (1) is open, a plurality of heat sinks (401) are fixed to the lower outer portion of the detection chamber (1), the spacing between the upper and lower adjacent heat sinks (401) is equal, side panels (4) are provided on both sides of the detection chamber (1), and both sides of the heat sink (401) are respectively fixed to the two side panels (4).

2. The HUD plane reflector anti-sunlight backflow detection device according to claim 1, characterized in that: A thermosensitive switch (101) is fixed through the bottom end of the detection chamber (1), a heat-absorbing film (102) is fixed on the surface of the thermosensitive switch (101) in the detection chamber (1), and the bottom end of the heat-absorbing film (102) is fixed to the bottom of the detection chamber (1).

3. The HUD plane reflector anti-sunlight backflow detection device according to claim 1, characterized in that: An L-shaped support frame (202) is fixed to one side of the material discharging frame (2), a full-spectrum light source (203) is fixed to one end of the L-shaped support frame (202) arranged above the material discharging frame (2), and a display light (5) is fixed in the center of a vertical surface of the material discharging frame (2) adjacent to the L-shaped support frame (202).

4. The HUD plane reflector anti-sunlight backflow detection device according to claim 1, characterized in that: Insertion rods (301) are fixed at the four corners of the bottom of the support frame (3), and sockets (201) are fixed at the four corners of the bottom of the material discharging frame (2), and the insertion rods (301) are inserted into the sockets (201).

5. The HUD plane reflector anti-sunlight backflow detection device according to claim 4, characterized in that: A push frame (302) is fixed to the bottom ends of all the insertion rods (301), and the push frame (302) is movably connected to the side of the detection chamber (1).

6. The HUD plane reflector anti-sunlight backflow detection device according to claim 1, characterized in that: An air inlet frame (402) is commonly fixed to one end of all the heat sinks (401), a built-in fan (403) is fixed on the inner wall of the air inlet frame (402), and the air inlet frame (402) is fixed between two side panels (4).

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