Test box for simulating fogging test of automobile tail lamp

Abstract

The utility model discloses a test box for simulating an automobile tail lamp fogging test, relates to the technical field of test equipment, and aims to solve the problems that only a static test can be carried out on an automobile tail lamp, the influence of bumping generated in the driving process of an automobile on the sealing performance of the automobile tail lamp cannot be simulated and the practicability is low in the simulation test proposed by the background technology. According to the scheme, the device comprises a test box, the test box comprises an outer box body, an inner box body connected into the outer box body through bolts and a partition plate connected to the inner wall of the middle of the inner box body through bolts, humidifiers are connected to the inner walls of the two sides of the inner box body through bolts, and a heating mechanism is arranged on the inner wall of the bottom of the outer box body; the heating mechanism comprises a supporting plate and two mounting plates which are connected to the inner wall of the bottom of the outer box body through bolts. According to the utility model, the bumping generated in the driving process can be simulated when the fogging test is carried out on the tail lamp, so that the influence of the bumping on the sealing performance of the automobile tail lamp is detected, and the practicability is improved.

Description

Technical Field

[0001] This utility model relates to the field of testing equipment technology, and in particular to a test chamber for simulating fogging of automobile taillights. Background Technology

[0002] The automotive headlight fogging test is an important test designed to verify the fogging state inside the headlights under full vehicle usage conditions. By simulating the use of the vehicle under different environmental conditions, it evaluates the sealing performance and anti-fogging performance of the vehicle's headlights to ensure driving safety and improve the driving experience.

[0003] Automotive sealing refers to the vehicle's ability to prevent external substances from entering the vehicle's interior when all components are closed. The taillight fogging test assesses whether fogging occurs during vehicle lighting, indirectly reflecting the vehicle's sealing performance. A well-sealed vehicle effectively prevents moisture and other dampness from entering the taillights, maintaining clear visibility and improving driving safety. While a temperature and humidity test chamber is needed to simulate the environment in which taillights operate, current temperature and humidity test chambers can only perform static tests on taillights and cannot simulate the impact of vibrations during vehicle operation on the taillight's sealing performance, thus limiting their practicality. Utility Model Content

[0004] This invention provides a test chamber for simulating fogging of automotive taillights, which solves the problem that existing temperature and humidity test chambers can only conduct static tests on automotive taillights and cannot simulate the impact of bumps generated during vehicle operation on the sealing of automotive taillights, resulting in low practicality.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A test chamber for simulating fogging of automotive taillights includes a test chamber comprising an outer chamber, an inner chamber bolted to the outer chamber, and a partition bolted to the inner wall of the inner chamber. Humidifiers are bolted to both inner walls of the inner chamber. A heating mechanism is provided on the bottom inner wall of the outer chamber. The heating mechanism includes a support plate bolted to the bottom inner wall of the outer chamber, two mounting plates bolted to the outer walls of the support plates, several fans bolted to the bottom outer walls of the two mounting plates, and four connecting rods bolted to the outer walls of the support plates. The enclosure contains a block and several ceramic heating rods. The inner chamber is equipped with a vibration mechanism, which includes a servo motor bolted to one outer wall of the outer chamber, a connecting shaft connected to one end of the servo motor output shaft via a coupling, a cam connected to the outer wall of the connecting shaft via a pin, a slide plate abutting against the outer wall of the cam, and a connecting plate bolted to one outer wall of the slide plate. A reset mechanism is provided above the slide plate, which includes a mounting block bolted to one outer wall of the partition, several sliding rods that pass through and slide on the top outer wall of the mounting block, and several reset springs that are sleeved on the lower outer wall of the sliding rods.

[0007] Preferably, a baffle is bolted to one side of the inner wall of the outer box, and one side of the baffle abuts against one side of the outer wall of the inner box. Several ventilation holes are opened on the inner walls of the bottom of the inner box on both sides of the partition. A box door is hinged to one side of the outer wall of the outer box, and an observation window is embedded in the outer wall of the box door.

[0008] Preferably, the top of the support plate abuts against the bottom outer wall of the inner box, the bottom of the four connecting blocks are respectively bolted to the bottom inner wall of the outer box, and the four connecting blocks are respectively bolted to the outer walls on both sides of the two mounting plates. A number of ceramic heating rods are respectively located on both sides of the support plate, and the number of ceramic heating rods are respectively bolted to the outer wall on the opposite side of the four connecting blocks.

[0009] Preferably, exhaust pipes are fixedly installed on the inner walls of the top of the inner box on both sides of the partition, and the upper parts of the two exhaust pipes pass through and are fixedly installed on the outer wall of the top of the outer box, and pressure relief valves are embedded in the two exhaust pipes.

[0010] The above scheme uses two humidifiers to humidify the sealed space consisting of the inner chamber, partition, and door. At the same time, several ceramic heating rods on both sides of the mounting plate are connected to two PID temperature controllers. The operation of the ceramic heating rods generates heat, and multiple fans operate to deliver the heat to the sealed space on both sides of the partition of the inner chamber, thereby realizing temperature zone control inside the inner chamber to simulate the environment inside and outside the vehicle.

[0011] Preferably, one end of the connecting shaft passes through and is connected to the inner wall of the inner box via a bearing, and the other end of the connecting shaft is connected to the outer wall of the partition via a bearing. A slide is provided on the outer wall of the partition, and the slide plate is slidably installed in the slide. The connecting plate abuts against the outer wall of the partition.

[0012] Preferably, the bottom ends of several slide rods are respectively bolted to the top outer wall of the slide plate, and limit rings are screwed onto the upper outer wall of several slide rods.

[0013] The above method involves using bolts to mount the taillight mounting template onto the connecting plate, and then mounting the taillight onto the mounting template. Subsequently, the output shaft of the servo motor rotates, driving the connecting shaft and the cam to rotate. The cam drives the slide plate to move along the slide rail and squeezes multiple return springs. Then, under the tension of the return springs, the slide plate returns to its original position, thus simulating the bumps generated by the vehicle during driving.

[0014] The beneficial effects of this utility model are as follows:

[0015] The taillight mounting template is installed on the connecting plate using bolts, and the taillight is then mounted on the mounting template. Subsequently, the output shaft of the servo motor rotates, driving the connecting shaft and cam to rotate. The cam drives the slide plate to move along the slide rail and compresses multiple return springs. Then, under the tension of the return springs, the slide plate returns to its original position, thus simulating the bumps generated during vehicle operation. This allows for the simulation of bumps generated during driving when testing the taillight for fogging, thereby detecting the impact of bumps on the sealing performance of the car taillight and improving its practicality. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall main structure of a test chamber for simulating fogging of automobile taillights proposed in this utility model.

[0017] Figure 2 This is a schematic diagram of the overall cross-sectional structure of a test chamber for simulating fogging of automobile taillights proposed in this utility model.

[0018] Figure 3 This is a schematic diagram of the main cross-sectional structure of a test chamber for simulating fogging of automobile taillights, as proposed in this utility model.

[0019] Figure 4 This is a front view schematic diagram of the heating mechanism of a test chamber for simulating fogging of automobile taillights proposed in this utility model.

[0020] Figure 5 This is a bottom view schematic diagram of the vibration mechanism of a test chamber for simulating fogging of automobile taillights proposed in this utility model.

[0021] Figure 6This is a front view schematic diagram of the reset mechanism of a test chamber for simulating fogging of automobile taillights proposed in this utility model.

[0022] In the diagram: 1. Test chamber; 101. Outer chamber; 102. Inner chamber; 103. Baffle; 104. Partition; 105. Door; 2. Humidifier; 3. Heating mechanism; 301. Support plate; 302. Mounting plate; 303. Fan; 304. Connecting block; 305. Ceramic heating rod; 4. Exhaust pipe; 5. Vibration mechanism; 501. Servo motor; 502. Connecting shaft; 503. Cam; 504. Slide plate; 505. Connecting plate; 6. Reset mechanism; 601. Mounting block; 602. Slide rod; 603. Reset spring; 604. Limiting ring. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Example 1, referring to Figure 1-4A test chamber for simulating automotive taillight fogging includes a test chamber 1. The test chamber 1 includes an outer chamber 101, an inner chamber 102 bolted to the outer chamber 101, and a partition 104 bolted to the inner wall of the inner chamber 102. A baffle 103 is bolted to one inner wall of the outer chamber 101, and one side of the baffle 103 abuts against one outer wall of the inner chamber 102. Several ventilation holes are provided on the inner walls of the inner chamber 102 located on both sides of the partition 104. Temperature sensors are installed on the inner walls of the inner chamber 102, and humidity sensors are also installed on the inner wall of the inner chamber 102 near the door 105. A door 105 is hinged to one outer wall of the outer chamber 101, and an observation window is embedded in the outer wall of the door 105. Humidifiers 2 are bolted to the inner walls of both sides of the inner chamber 102. A heating mechanism 3 is provided on the bottom inner wall of the outer chamber 101. The heating mechanism 3 includes a support plate 301 bolted to the bottom inner wall of the outer chamber 101 and two mounting plates bolted to the outer walls of the support plate 301 on both sides. 302. Several fans 303 bolted to the bottom outer walls of two mounting plates 302; four connecting blocks 304 bolted to the outer walls of two sides of a support plate 301; and several ceramic heating rods 305. The top of the support plate 301 abuts against the bottom outer wall of the inner casing 102. The bottoms of the four connecting blocks 304 are bolted to the bottom inner wall of the outer casing 101. The four connecting blocks 304 are bolted to the outer walls of two sides of the two mounting plates 302. The several ceramic heating rods 305 are located on the support plate 301. On both sides of the support plate 301, several ceramic heating rods 305 are respectively bolted to the outer wall of the four connecting blocks 304 on opposite sides. The ceramic heating rod groups on both sides of the mounting plate 302 are respectively connected to two PID temperature controllers through wires to control the space temperature of the inner box 102 located on both sides of the partition 104. The top of the inner box 102 is fixedly provided with exhaust pipes 4 on the inner wall on both sides of the partition 104. The upper part of the two exhaust pipes 4 passes through and is fixed to the top outer wall of the outer box 101. The two exhaust pipes 4 are each equipped with a pressure relief valve.

[0025] Example 2, refer to Figure 5-6A test chamber for simulating fogging of automotive taillights also includes a vibration mechanism 5. The vibration mechanism 5 includes a servo motor 501 bolted to one outer wall of the outer housing 101, a connecting shaft 502 connected to one end of the output shaft of the servo motor 501 via a coupling, a cam 503 connected to the outer wall of the connecting shaft 502 via a pin, a slide plate 504 abutting against the outer wall of the cam 503, and a connecting plate 505 bolted to one outer wall of the slide plate 504. One end of the connecting shaft 502 passes through and is connected to one inner wall of the inner housing 102 via a bearing, and the other end of the connecting shaft 502 is connected to one side of the partition plate 104 via a bearing. On the outer wall, the partition 104 has a slide rail, the slide plate 504 is slidably installed in the slide rail, the connecting plate 505 abuts against the outer wall of the partition 104, and a reset mechanism 6 is provided above the slide plate 504. The reset mechanism 6 includes a mounting block 601 that is bolted to one side of the outer wall of the partition 104, several slide rods 602 that are respectively inserted through and slidably installed on the top outer wall of the mounting block 601, and several reset springs 603 that are respectively sleeved on the lower outer wall of the slide rods 602. The bottom ends of the slide rods 602 are respectively bolted to the top outer wall of the slide plate 504, and limit rings 604 are screwed onto the upper outer wall of the slide rods 602.

[0026] Working principle: Two humidifiers 2 humidify the sealed space consisting of the inner chamber 102, partition 104, and door 105. At the same time, several ceramic heating rods 305 on both sides of the mounting plate 302 are connected to two PID temperature controllers. The operation of the ceramic heating rods 305 generates heat, and multiple fans 303 operate to deliver the heat to the sealed space on both sides of the partition 104 in the inner chamber 102, realizing temperature zone control inside the inner chamber 102 to simulate the environment inside and outside the vehicle. The taillight mounting template is installed on the connecting plate 505 with bolts, and the taillight is installed on the mounting template. Then, the output shaft of the servo motor 501 rotates, driving the connecting shaft 502 and the cam 503 to rotate. The cam 503 drives the slide plate 504 to move along the slide and squeezes multiple return springs 603. Then, under the tension of the return springs 603, the slide plate 504 is reset, thus simulating the bumps generated by the vehicle during driving.

[0027] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A test chamber for simulating a fogging test of a rear lamp of a vehicle, comprising a test chamber (1), characterized in that, The test box (1) comprises an outer box body (101), an inner box body (102) bolted to the outer box body (101), and a partition plate (104) bolted to the inner wall of the middle part of the inner box body (102); The inner walls on both sides of the inner box body (102) are bolted with humidifiers (2); The bottom inner wall of the outer box body (101) is provided with a heating mechanism (3), which comprises a support plate (301) bolted to the bottom inner wall of the outer box body (101), two mounting plates (302) bolted to the outer walls on both sides of the support plate (301), a plurality of fans (303) bolted to the outer walls on the bottom of the two mounting plates (302), four connecting blocks (304) bolted to the outer walls on both sides of the support plate (301), and a plurality of ceramic heating rods (305). The inner box body (102) is provided with a vibration mechanism (5), which comprises a servo motor (501) bolted to one side of the outer wall of the outer box body (101), a connecting shaft (502) connected to one end of the output shaft of the servo motor (501) through a shaft coupling, a cam (503) connected to the outer wall of the connecting shaft (502) through a pin shaft, a sliding plate (504) abutting against the outer wall of the cam (503), and a connecting plate (505) bolted to one side of the outer wall of the sliding plate (504). The upper side of the sliding plate (504) is provided with a reset mechanism (6), which comprises a mounting block (601) bolted to one side of the outer wall of the partition plate (104), a plurality of sliding rods (602) penetrating and slidingly installed on the top outer wall of the mounting block (601), and a plurality of reset springs (603) sleeved on the lower outer wall of the sliding rod (602).

2. The test chamber for simulating the fogging test of a rear lamp of a vehicle according to claim 1, wherein One side of the outer wall of the outer box body (101) is bolted with a baffle (103), and one side of the baffle (103) abuts against one side of the outer wall of the inner box body (102). The inner walls on both sides of the bottom of the inner box body (102) are provided with a plurality of ventilation holes. One side of the outer wall of the outer box body (101) is hinged with a box door (105), and the outer wall of the box door (105) is embedded with an observation window.

3. The test chamber for simulating the fogging test of a rear lamp of a vehicle according to claim 1, wherein The top of the support plate (301) abuts against the outer wall of the bottom of the inner box body (102). The bottoms of the four connecting blocks (304) are bolted to the inner wall of the bottom of the outer box body (101), and the four connecting blocks (304) are bolted to the outer walls on both sides of the two mounting plates (302). The plurality of ceramic heating rods (305) are located on both sides of the support plate (301), and the plurality of ceramic heating rods (305) are bolted to the outer walls on the opposite sides of the four connecting blocks (304).

4. The test chamber for simulating the fogging test of a rear lamp of a vehicle according to claim 1, wherein The top of the inner box body (102) is fixed with an exhaust pipe (4) on the inner wall on both sides of the partition plate (104), and the upper parts of the two exhaust pipes (4) penetrate and are fixed to the outer wall of the top of the outer box body (101). The two exhaust pipes (4) are embedded with pressure relief valves.

5. The test chamber for simulating the fogging test of a rear lamp of a vehicle according to claim 1, wherein One end of the connecting shaft (502) penetrates and is connected to one side of the inner wall of the inner box (102) through a bearing, and one end of the connecting shaft (502) is connected to one side of the outer wall of the partition plate (104) through a bearing, a slide is opened on the outer wall of the partition plate (104), and a sliding plate (504) is slidingly installed in the slide, and the connecting plate (505) abuts against the outer wall of the partition plate (104).

6. The test chamber for simulating the fogging test of a rear lamp of a vehicle according to claim 1, wherein The bottom end of each of the plurality of slide rods (602) is connected to the top outer wall of the sliding plate (504) through a bolt, and a limiting ring (604) is screwed on the upper outer wall of each of the plurality of slide rods (602).

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