A luminaire brightness detection apparatus, system and method

Abstract

The application discloses a lamp brightness detection device, system and method, and solves the technical problems of low detection efficiency and deviation of detection results from actual conditions in the prior art. The lamp brightness detection device comprises a brightness detection assembly and a lamp fixing device. The brightness detection assembly is provided with multiple brightness detection assemblies which are arranged at intervals. The brightness detection assembly comprises a detection box provided with a detection cavity and a detection probe arranged in the detection cavity. The lamp fixing device comprises a driving device and lamp fixing pieces which are the same in number as the detection boxes. The lamp fixing pieces are arranged one by one in the detection cavities, and the lamp fixing pieces can move under the driving of the driving device. The driving device can drive the lamp fixing pieces to move, thereby driving the lamps to move, so that the lamps are closer to the movement of the lamps in the driving process of the automobile, and therefore, the brightness detection result is closer to the running state of the automobile lamp and has higher accuracy. The lamp brightness detection of multiple lamps can be simultaneously realized, and the detection efficiency is improved.

Description

Technical Field

[0001] This application belongs to the field of lighting brightness detection technology, specifically relating to a lighting brightness detection device, system and method. Background Technology

[0002] Automotive headlights are used to ensure that vehicles can provide sufficient illumination for their designated areas during nighttime driving; therefore, brightness testing is required for all manufactured headlights. In existing technology, automotive headlight brightness testing devices include a testing platform, a mounting platform, and a power supply. A photosensitive detection device is mounted above the testing platform, and the power supply is located below the mounting platform. The photosensitive detection device measures the brightness of the light emitted by the headlight. A moving device is mounted above the photosensitive detection device, which then moves the device to measure the illuminance of the headlight at different locations.

[0003] While this technology can improve the detection range of headlight brightness by moving the photosensitive detection device, it can only detect a single headlight at a time, resulting in low detection efficiency. Furthermore, it is not suitable to improve the detection range of headlight brightness by moving the photosensitive detection device, because headlights are in motion when they are working. Only by detecting the light intensity of different areas of the headlight during its movement can the best headlight detection results be guaranteed.

[0004] Therefore, it is necessary to design a vehicle headlight brightness detection device with high detection efficiency and high detection accuracy. Summary of the Invention

[0005] To address the current technical problems of low efficiency and low accuracy in vehicle headlight brightness detection, this application provides a headlight brightness detection device, system, and method.

[0006] In a first aspect of this application, a lamp brightness detection device is provided, comprising:

[0007] Multiple brightness detection components are arranged at intervals, including a detection box with a detection cavity and a detection probe disposed in the detection cavity;

[0008] The lamp fixing device includes a driving device and lamp fixing members in the same number as the detection box. The lamp fixing members are arranged one-to-one in the detection cavity, and the lamp fixing members can move under the drive of the driving device.

[0009] In some embodiments, the plurality of brightness detection components are spaced apart along a first direction; the lamp fixture fixing member is connected to the driving device via a drive shaft, and the drive shaft is angled relative to the first direction.

[0010] The lamp fixture fixing member can move along at least one of the first direction, the axial direction of the transmission shaft, and the height direction under the drive of the driving device.

[0011] In some embodiments, the driving device includes a first driving unit, a second driving unit, and a third driving unit. The first driving unit is used to drive the lamp fixture to move along the first direction; the second driving unit is used to drive the lamp fixture and the transmission shaft to move along the axial direction of the transmission shaft; and the third driving unit is used to drive the lamp fixture, the transmission shaft, the first driving unit, and the second driving unit to move along the height direction.

[0012] In some embodiments, the first driving unit includes a first driving member, a first transmission mechanism, a threaded sleeve, and a first screw that is threadedly engaged with the threaded sleeve; the first screw and the threaded sleeve are located in the detection cavity, the first screw is connected to the transmission shaft for force transmission and is set at an angle, and the first driving member is connected to the transmission shaft for force transmission through the first transmission mechanism.

[0013] The lamp holder can move along the first screw under the drive of the first drive member.

[0014] In some embodiments, the number of drive shafts, threaded sleeves, and first screws is the same as the number of lamp fixing components, and the first transmission mechanism is connected to one of the drive shafts for force transmission; the first drive unit further includes a second transmission mechanism that is connected to each of the drive shafts for force transmission.

[0015] The first transmission mechanism and / or the second transmission mechanism are belt drive mechanisms.

[0016] In some embodiments, the second drive unit includes a second drive member, a first bracket, and a second screw parallel to the drive shaft and connected to the second drive member for force transmission. The second screw is threadedly connected to the first bracket, and the drive shaft is rotatably mounted on the first bracket.

[0017] The lamp fixture and the drive shaft can move axially along the drive shaft under the drive of the second drive unit.

[0018] In some embodiments, the first bracket is provided with two opposing first limiting surfaces that are angled to the drive shaft, and the drive shaft is provided with two second limiting surfaces that respectively cooperate with the two first limiting surfaces; the second drive unit further includes a first guide rod that is parallel to the second screw, and the first guide rod is slidably connected to the first bracket.

[0019] In some embodiments, the third drive unit includes a base, a support structure, and a telescopic member that reciprocates along the height direction. The telescopic member is connected to the base and the support structure. The support structure is connected to the drive shaft, the first drive unit, and the second drive unit. The lamp fixture, the first drive unit, and the second drive unit can move along the height direction under the drive of the third drive unit.

[0020] In some embodiments, the third drive unit includes a second guide rod extending along the height direction and movably connected to the support structure, the second guide rod being connected to the base.

[0021] In some embodiments, the detection box includes a closing device and a box body with an operating port. The closing device moves along the height direction under the drive of the third driving unit so that the closing device closes the operating port of the box body to form the detection cavity.

[0022] In some embodiments, the lamp holder is connected to the cover device via a first elastic member extending along the height direction, and the housing is provided with an elongated hole into which the drive shaft extends and reciprocates along the height direction.

[0023] In some embodiments, the first driving unit further includes mounting boxes, the same number as the detection boxes and located within the detection cavity, the mounting boxes being connected to the drive shaft and the lamp fixture, and the mounting boxes being fitted against the inner wall of the elongated hole; and / or

[0024] The closing device includes a cover plate and a limiting plate connected to each other. When the closing device closes onto the box, the limiting plate is in contact with the inner wall of the detection cavity, and the first elastic element is connected to the cover plate.

[0025] In some embodiments, the brightness detection assembly includes two detection boxes arranged opposite each other along the axial direction of the drive shaft; a plurality of detection probes are provided, and the plurality of detection probes are arranged in an array; the detection probes are located on the side of the detection box away from the lamp fixture fixing member.

[0026] In some embodiments, the lamp holder is a clamping member, the clamping member comprising:

[0027] The second bracket is connected to the drive shaft;

[0028] Two clamping plates are spaced apart and are both slidably connected to the second bracket;

[0029] Two second elastic elements are respectively connected to the opposite sides of the two clamping plates, and both are connected to the second bracket.

[0030] In some embodiments, the second bracket is provided with a slide rod that is angled to the drive shaft, the second elastic element is a spring that is loosely sleeved outside the slide rod, and the two clamping plates are slidably connected to the slide rod.

[0031] In a second aspect of this application, a luminaire brightness detection system is provided, comprising:

[0032] The aforementioned lamp brightness detection device;

[0033] A power supply unit, located on the detection box, is used to supply power to the lamps;

[0034] The control unit is electrically connected to the detection probe of the lamp brightness detection device.

[0035] In a third aspect of this application, a method for detecting the brightness of a lamp is provided, applicable to the aforementioned lamp brightness detection system, the method comprising the following steps:

[0036] Multiple lamps to be tested are fixed one by one to the lamp fixing parts of the lamp brightness detection device and electrically connected to the power supply unit;

[0037] The power supply unit is turned on to supply power to the lamp under test, and the detection probe detects the initial brightness of the lamp under test and transmits it to the control unit;

[0038] The first drive unit, the second drive unit, and the third drive unit are activated, and the lamp fixture fixing component reciprocates along the first direction, the axial direction of the drive shaft, and the height direction, thereby driving multiple lamps to be tested to reciprocate along the first direction, the axial direction of the drive shaft, and the height direction.

[0039] During the reciprocating movement of multiple lamps under test, the detection probe detects the real-time brightness of the lamps under test and transmits it to the control unit.

[0040] According to one or more embodiments of this application, the lamp brightness detection device generally includes a brightness detection component and a lamp fixing device. The detection box of the brightness detection component is used to form a receiving space for illuminating the lamp, and the detection probe located in the receiving space is used to detect the brightness of the lamp. Multiple brightness detection components are provided, and the detection box of each component can accommodate a lamp, enabling simultaneous detection of multiple lamps and improving the detection efficiency of the lamp brightness detection device. The lamp fixing device includes a driving device and a lamp fixing component. The driving device can drive the lamp fixing component to move, thereby moving the lamp, which more closely resembles the movement of lamps during vehicle operation, thus resulting in higher accuracy of the brightness detection results.

[0041] Compared with the prior art, the lamp brightness detection device of this application has at least the following advantages:

[0042] (1) Multiple testing boxes are provided to accommodate lamps. The brightness of the lamps can be detected in each testing box. Therefore, the brightness of multiple lamps can be detected at the same time, which improves the detection efficiency.

[0043] (2) The lamp fixture is moved under the drive of the drive device, thereby moving the lamp and realizing the brightness detection at different positions of the lamp, which is closer to the actual application scenario of the lamp and has high brightness detection accuracy. Attached Figure Description

[0044] Figure 1 A schematic diagram of the structure of a lamp brightness detection device according to an embodiment of this application is shown.

[0045] Figure 2 It shows Figure 1 A schematic diagram of the structure of the lamp brightness detection device from another angle.

[0046] Figure 3 It shows Figure 1 A partial unfolded structural diagram of the detection box, mounting box, and lamp fixing components of the lamp brightness detection device.

[0047] Figure 4 It shows Figure 3 A partial enlarged view of the lamp brightness detection device.

[0048] Figure 5 It shows Figure 3 An exploded view of the cover device and the housing in the lamp brightness detection device.

[0049] Figure 6 It shows Figure 3 Exploded view of the drive shaft and limit sleeve in the lamp brightness detection device.

[0050] Explanation of reference numerals in the attached figures:

[0051] 1000 - Lamp brightness detection device;

[0052] 100-Brightness detection component, 110-Detection box, 111-Box body, 111a-Operating port, 111b-Elongated hole, 112-Covering device, 112a-Cover plate, 112b-Limiting plate, 112c-Light shielding strip, 112d-First elastic element, 112e-Half hole, 120-Detection probe.

[0053] 200-Lamp fixture fixing device, 210-Drive device, 220-Lamp fixture fixing component, 221-Second bracket, 222-Clamping plate, 223-Second elastic element, 224-Slide rod, 225-Mounting plate, 230-Drive shaft, 231-Second limiting surface, 232-Annular groove, 240-First drive unit, 241-First drive component, 242-First transmission mechanism, 243-Threaded sleeve, 244-First screw, 244a-First bevel tooth, 245 - Second transmission mechanism, 246- Mounting box, 247- Third guide rod, 248- Gear shaft, 248a- Second bevel gear; 250- Second drive unit, 251- Second drive component, 252- First bracket, 252a- First limiting surface, 252b- Limiting sleeve, 253- Second screw, 254- First guide rod, 260- Third drive unit, 261- Base, 262- Support structure, 263- Telescopic component, 264- Second guide rod.

[0054] B - First direction. Detailed Implementation

[0055] To enable those skilled in the art to more clearly understand this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0056] According to the first aspect of this application, a lamp brightness detection device is provided, which has high detection efficiency and high accuracy.

[0057] Please see Figure 1 as well as Figure 3 The lamp brightness detection device 1000 provided in this application embodiment includes a brightness detection component 100 and a lamp fixing device 200. Multiple brightness detection components 100 are provided and are spaced apart. Each brightness detection component 100 includes a detection box 110 with a detection cavity and a detection probe 120 disposed in the detection cavity. The lamp fixing device 200 includes a driving device 210 and lamp fixing members 220 in the same number as the detection boxes 110. The lamp fixing members 220 are disposed one-to-one in the detection cavity and can move under the drive of the driving device 210.

[0058] The luminance detection device 1000 comprises a luminance detection component 100 and a luminance fixing device 200. The detection box 110 of the luminance detection component 100 forms a light-shielding accommodating space for the luminance, and the detection probe 120 located within this space is used to detect the luminance. Multiple luminance detection components 100 are provided, and each component's detection box 110 can accommodate a luminance, enabling simultaneous detection of multiple luminances and improving the detection efficiency of the luminance detection device 1000. The luminance fixing device 200 includes a driving device 210 and a luminance fixing member 220. The driving device 210 can drive the luminance fixing member 220 to move, thereby moving the luminance, more closely mimicking the movement of luminance during vehicle operation, thus resulting in higher accuracy of the luminance detection results.

[0059] Multiple brightness detection components 100 can be arranged in a matrix. In some embodiments, multiple brightness detection components 100 can be spaced apart along a first direction. The lamp fixture fixing member 220 is connected to the driving device 210 through a transmission shaft 230, and the transmission shaft 230 is arranged at an angle to the first direction. The lamp fixture fixing member 220 can move along at least one of the first direction, the axial direction of the transmission shaft 230, and the height direction under the drive of the driving device 210.

[0060] The detection box 110 can be in the shape of a cuboid, cube, polygonal prism, etc. The first direction can be the length direction of the detection box 110, the width direction of the detection box 110, or any direction perpendicular to the height direction. The lamp fixture fixing member 220 can move along at least one of the first direction, the axial direction of the transmission shaft 230, and the height direction under the drive of the driving device 210. That is, in some embodiments, the lamp fixture fixing member 220 can reciprocate along the first direction; in some embodiments, the lamp fixture fixing member 220 can reciprocate along the axial direction of the transmission shaft 230; in some embodiments, the lamp fixture fixing member 220 can also reciprocate along the height direction; in some embodiments, the lamp fixture fixing member 220 can reciprocate along two of the first direction, the axial direction of the transmission shaft 230, and the height direction; in some embodiments, the lamp fixture fixing member 220 can reciprocate along three directions: the first direction, the axial direction of the transmission shaft 230, and the height direction. The lamp fixture fixing component 220 can move back and forth in multiple directions, making the movement direction of the lamp more varied, the lamp brightness detection angle more abundant, and the detection results more comprehensive.

[0061] In some embodiments, please refer to Figure 3The driving device 210 includes a first driving unit 240, a second driving unit 250, and a third driving unit 260. The first driving unit 240 is used to drive the lamp fixture 220 to move along a first direction; the second driving unit 250 is used to drive the lamp fixture 220 and the transmission shaft 230 to move along the axial direction of the transmission shaft 230; and the third driving unit 260 is used to drive the lamp fixture 220, the transmission shaft 230, the first driving unit 240, and the second driving unit 250 to move along the height direction.

[0062] The first drive unit 240, the second drive unit 250 and the third drive unit 260 are described in detail below.

[0063] Please see Figure 2 as well as Figure 4 The first drive unit 240 includes a first drive member 241, a first transmission mechanism 242, a screw sleeve 243, and a first screw 244 threadedly engaged with the screw sleeve 243. The first screw 244 and the screw sleeve 243 are located in the detection cavity. The first screw 244 is connected to the transmission shaft 230 for force transmission and is set at an angle. The first drive member 241 is connected to the transmission shaft 230 for force transmission through the first transmission mechanism 242. The lamp fixing member 220 can move along the axial direction of the first screw 244 under the drive of the first drive member 241.

[0064] The first driving component 241 can be a motor or a drive motor. The first driving component 241 and the transmission shaft 230 are connected by force transmission through the first transmission mechanism 242. Therefore, under the driving action of the first driving component 241, the transmission shaft 230 rotates around itself. Since the first screw 244 is connected to the transmission shaft 230 by force transmission, the rotation of the transmission shaft 230 drives the first screw 244 to rotate itself. The rotation of the first screw 244 drives the screw sleeve 243 to reciprocate along the axial direction of the first screw 244.

[0065] In some embodiments, the first screw 244 extends along a first direction, and the drive shaft 230 is angled to the first screw 244, for example, the drive shaft 230 and the first screw 244 are perpendicular to each other, and the included angle between the drive shaft 230 and the first screw 244 is 85°, etc.

[0066] In some embodiments, please refer to Figure 4The first screw 244 has a first bevel tooth 244a connected to its end, and the drive shaft 230 has a second bevel tooth 248a that meshes with the first bevel tooth 244a, thus achieving a force transmission connection between the drive shaft 230 and the first screw 244 at an angle. To improve space utilization, when the drive shaft 230 and the first screw 244 are connected by force transmission through the first bevel tooth 244a and the second bevel tooth 248a, the first drive unit 240 also includes a gear shaft 248, which has a second bevel tooth 248a. The drive shaft 230 and the gear shaft 248 are connected by force transmission through a belt mechanism.

[0067] In other embodiments, the first screw 244 and the drive shaft 230 can also be connected by a worm gear mechanism, with the end of the drive shaft 230 connected to a worm, and the first screw 244 serving as a worm.

[0068] In some embodiments, the number of the first driving member 241, the transmission shaft 230, and the first transmission mechanism 242 are the same as the number of lamp fixture fixing members 220. The first driving member 241 is connected to the corresponding transmission shaft 230 through the corresponding first transmission mechanism 242 to drive the corresponding first screw 244 to rotate, so as to realize the reciprocating movement of the corresponding lamp fixture fixing member 220 along the corresponding first screw 244. In some embodiments, the number of drive shafts 230, threaded sleeves 243, and first screws 244 are the same as the number of lamp fixture fasteners 220. The first transmission mechanism 242 is connected to one of the drive shafts 230 for power transmission. The first drive unit 240 also includes a second transmission mechanism 245 that is connected to each drive shaft 230 for power transmission. The first drive member 241 transmits power to the drive shafts 230 through the first transmission mechanism 242. Relying on the second transmission mechanism 245, one of the transmission shafts transmits power to all the remaining drive shafts 230 and to each first screw 244, so that multiple lamp fixture fasteners 220 can move along the axial direction of the first screw 244. This simplifies the number of the first drive member 241 and the first transmission mechanism 242, making the structure more concise and compact.

[0069] In some embodiments, please refer to Figure 2 as well as Figure 3 The first transmission mechanism 242 and / or the second transmission mechanism 245 are belt drive mechanisms. In other embodiments, the first transmission mechanism 242 and / or the second transmission mechanism 245 are transmission mechanisms formed by flexible rubber ropes; in other embodiments, the first transmission mechanism 242 and / or the second transmission mechanism 245 are chain drive mechanisms with a certain degree of flexibility. The first transmission mechanism 242 adopts a transmission mechanism with a certain deformation capability, which can adapt to the reciprocating motion of the transmission shaft 230 along its own axial direction within a certain distance.

[0070] Please see Figure 2The second drive unit 250 includes a second drive member 251, a first bracket 252, and a second screw 253. The second screw 253 is parallel to the transmission shaft 230 and is connected to the second drive member 251 for force transmission. Therefore, under the drive of the second drive member 251, the second screw 253 rotates. The second screw 253 is threadedly connected to the first bracket 252. Thus, the rotation of the second screw 253 causes the first bracket 252 to reciprocate along the axial direction of the transmission shaft 230. The transmission shaft 230 is rotatably mounted on the first bracket 252, thereby driving the transmission shaft 230 and the drive member to reciprocate along the axial direction of the transmission shaft 230. This enables the lamp fixture fixing member 220 and the transmission shaft 230 to move along the axial direction of the transmission shaft 230 under the drive of the second drive unit 250.

[0071] The drive shaft 230 is rotatably mounted on the first bracket 252, which allows the drive shaft 230 to rotate on its own and also allows the first bracket 252 to drive the drive shaft 230 to reciprocate along the axial direction of the drive shaft 230. The second driving component 251 can be a motor or a drive motor.

[0072] In some embodiments, please refer to Figure 5 The first bracket 252 has two opposing first limiting surfaces 252a set at an angle to the drive shaft 230. The drive shaft 230 has two second limiting surfaces 231 that respectively cooperate with the two first limiting surfaces 252a. The cooperation between the first limiting surfaces 252a and the second limiting surfaces 231 allows the first bracket 252 to drive the drive shaft 230 to reciprocate along the axial direction of the drive shaft 230. In other embodiments, the drive shaft 230 has an annular groove 232 coaxial with itself in the middle. The two opposing groove walls of the annular groove 232 form two opposing first limiting surfaces 252a. The first bracket 252 includes a body and a limiting sleeve 252b. The body is provided with a mounting hole for mounting a limiting sleeve 252b. The through hole of the limiting sleeve 252b allows the drive shaft 230 to pass through. The two end faces of the limiting sleeve 252b along its own axial direction form two second limiting surfaces 231. In other embodiments, the middle part of the drive shaft 230 is provided with an annular protrusion coaxial with itself. The two sides of the annular protrusion form two back-to-back first limiting surfaces 252a. The first bracket 252 includes a body and two limiting rings arranged sequentially and spaced apart along the axial direction of the drive shaft 230. The body is provided with a mounting hole for mounting the two limiting rings. The opposite end faces of the two limiting rings form two second limiting surfaces 231. The annular protrusion is located in the mounting hole and between the two limiting rings.

[0073] In some embodiments, multiple drive shafts 230 are rotatably mounted on a first bracket 252, and two first limiting surfaces 252a form a set of limiting structures. The first bracket 252 is provided with the same number of limiting structures as the drive shafts 230, so as to realize the reciprocating movement of multiple drive shafts 230 along the axial direction of the drive shafts 230.

[0074] To improve the stability of the first support 252 reciprocating along the drive shaft 230, in some embodiments, please refer to... Figure 2 The second drive unit 250 also includes a first guide rod 254 parallel to the second screw 253, and the first guide rod 254 is slidably connected to the first bracket 252.

[0075] In some embodiments, multiple first guide rods 254 are provided, and the multiple first guide rods 254 are arranged sequentially at intervals along a first direction. Each first guide rod 254 is slidably connected to the first bracket 252 to further improve the stability of the first bracket 252 reciprocating along the drive shaft 230. In some embodiments, the second screw 253 is provided with first guide rods 254 on both sides along the first direction.

[0076] In some embodiments, the first bracket 252 includes a main plate extending along a first direction and a plurality of support plates, the plurality of support plates being arranged sequentially at intervals along the first direction and connected to the main plate; a plurality of connecting shafts are rotatably mounted on the main plate, the sum of the number of second screws 253 and first guide rods 254 is equal to the number of support plates, the second screws 253 are threadedly connected to the corresponding support plates, and the plurality of first guide rods 254 are slidably connected to the corresponding support plates respectively.

[0077] Please see Figure 1 as well as Figure 2 The third drive unit 260 includes a base 261, a support structure 262, and a telescopic member 263 that reciprocates along the height direction. The telescopic member 263 is connected to the base 261 and the support structure 262. The support structure 262 is connected to the drive shaft 230, the first drive unit 240, and the second drive unit 250. The lamp fixing member 220, the first drive unit 240, and the second drive unit 250 can move along the height direction under the drive of the third drive unit 260.

[0078] The telescopic component 263 can be a pneumatic cylinder, hydraulic cylinder, or electric cylinder. The base 261 can be placed at the position to be tested as a support. The fixed end of the telescopic component 263 is connected to the base 261, and the telescopic end of the telescopic component 263 is connected to the support structure 262. The telescopic end of the telescopic component 263 extends and retracts along the height direction, driving the support structure 262 to reciprocate along the height direction, thereby driving the first drive unit 240, the second drive unit 250, and the transmission shaft 230 located on the support structure 262 to reciprocate along the height direction. The lamp fixing component 220 also reciprocates along the height direction.

[0079] The support structure 262 can be a support plate or a support frame. The first driving component 241, the second driving component 251 and the first guide rod 254 are all connected to the support structure 262.

[0080] In some embodiments, please continue reading Figure 1 as well as Figure 2 In order to improve the stability of the support structure 262 and the first drive unit 240, the second drive unit 250 and the transmission shaft 230 connected to the support structure 262 in reciprocating motion along the height direction, the third drive unit 260 includes a second guide rod 264 extending along the height direction and movably connected to the support structure 262, and the second guide rod 264 is connected to the base 261.

[0081] Specifically, the support structure 262 is provided with a guide hole, and the second guide rod 264 is inserted into the guide hole with a gap. In order to further improve the stability of the reciprocating movement of the first drive unit 240, the second drive unit 250 and the transmission shaft 230 in the height direction, at least two second guide rods 264 are provided, and at least two second guide rods 264 are spaced around the telescopic member 263.

[0082] The detection box 110 of the detection component is used to provide a light-shielding detection cavity for the lamps to ensure the accuracy of the lamp brightness detection results.

[0083] In some embodiments, please refer to Figure 1 as well as Figure 3 The detection box 110 includes a closing device 112 and a box body 111 with an operating port 111a. The closing device 112 moves along the height direction under the drive of the third drive unit 260, so that the closing device 112 closes the operating port 111a of the box body 111 to form a detection cavity. During the detection process, the box body 111 remains stationary, for example, the box body 111 is placed on a detection platform. The operating port 111a is used to place the lamp into the detection cavity. After the lamp is placed into the detection cavity, the closing device 112 closes the operating port 111a through the third drive unit 260, forming a light-shielding closed detection cavity. Therefore, the third drive unit 210 can not only make the closing device 112 close the box body 111, but also make the lamp fixing member 220 reciprocate along the height direction.

[0084] In some embodiments, please refer to Figure 5 The lamp fixture fixing component 220 and the cover device 112 are connected by a first elastic element 112d extending along the height direction. The housing 111 is provided with an elongated hole 111b into which the drive shaft 230 extends and reciprocates along the height direction. During the entire testing process, the position of the housing 111 remains unchanged. After the lamp is connected to the lamp fixture fixing component 220, the drive shaft 230 moves downward along the length direction of the elongated hole 111b by driving the third drive unit 260, which drives the first elastic element 112d and the cover device 112 to move toward the housing 111 until the cover device 112 covers the housing 111. At this time, the drive shaft 230 continues to move downward along the elongated hole 111b, causing the first elastic element 112d to be stretched. In the subsequent lamp brightness test, even if the position of the lamp fixture fixing component 220 rises, the cover device 112 can still cover the housing 111, ensuring light shielding.

[0085] In some embodiments, the first elastic element 112d is a spring, a sheet, etc., and this application does not impose any limitations. In order to improve the connection stability between the cover device 112 and the lamp fixing member 220, in some embodiments, multiple first elastic elements 112d are provided, and the multiple first elastic elements 112d are arranged at intervals, for example, two, three or other numbers of first elastic elements 112d are provided.

[0086] To prevent the light transmission of the elongated hole 111b from affecting the brightness detection results of the lamp, in some embodiments, the first driving unit 240 further includes a mounting box 246, the same number as the detection box 110, located within the detection cavity. The drive shaft 230 is rotatably mounted on the mounting box 246. The mounting box 246 is connected to the lamp fixing member 220 and the first elastic member 112d, which is located outside the mounting box 246. The mounting box 246 is fitted against the inner wall where the elongated hole 111b is located; and / or, please refer to... Figure 5 The closing device 112 includes a cover plate 112a and a limiting plate 112b connected to each other. When the closing device 112 closes onto the box body 111, the limiting plate 112b is in contact with the inner wall of the detection cavity, and the first elastic member 112d is connected to the cover plate 112a.

[0087] When the mounting box 246 is in contact with the inner wall of the box 111 where the elongated hole 111b is located, the sealing and light-shielding properties of the detection cavity are improved; the screw sleeve 243 of the first drive unit 240 is located inside the mounting box 246; the first screw 244 and the gear shaft 248 are also rotatably mounted inside the mounting box 246, and the mounting box 246 is also provided with an extension hole for the lamp fixing member 220 to extend and move.

[0088] Please see Figure 5 The closing device 112 may have multiple limiting plates 112b connected to the cover plate 112a. In some embodiments, three limiting plates 112b are provided. The cover plate 112a is rectangular, and the limiting plates 112b are connected to the three sides of the cover plate 112a. The three limiting plates 112b can fit against the inner wall of the box body 111. In some embodiments, the edge of the cover plate 112a extends beyond the limiting plates 112b, and the portion of the cover plate 112a extending beyond the limiting plates 112b abuts against the top of the side wall of the box body 111 for positioning.

[0089] In some embodiments, please continue to refer to Figure 5The closing device 112 also includes a light-shielding strip 112c connected to the cover plate 112a. The elongated hole 111b of the housing 111 extends to the operation port 111a, and the light-shielding strip 112c can extend into the elongated hole 111b to further improve the light-shielding effect of the closing device 112. In some embodiments, a half-hole 112e is provided on the side of the light-shielding strip 112c away from the cover plate 112a. The half-hole 112e of the light-shielding strip 112c and the bottom of the elongated hole 111b together form a mating hole for the transmission shaft 230 to be inserted into. This mating hole allows the transmission shaft 230 to reciprocate along the height direction.

[0090] In some embodiments, the housing 111 is a cuboid, cube, or polygonal prism, which is easy to place and provides high stability. In some embodiments, a power supply unit, such as a power supply or an interface for connecting to a power supply, may also be installed inside the mounting box 246.

[0091] The detection probe 120 is used to detect the brightness of the lamps. In some embodiments, the brightness detection component 100 includes two detection boxes 110 arranged opposite each other along the axial direction of the drive shaft 230, which increases the number of brightness detection components 100, enables batch detection of lamps, and improves detection efficiency.

[0092] When the brightness detection assembly 100 includes two detection boxes 110, one drive shaft 230 corresponds to two detection boxes 110. Both ends of each drive shaft 230 are connected to lamp fixtures 220 located inside the detection box 110. The rotation of one drive shaft 230 can drive two lamps to reciprocate along a first direction; the reciprocating movement of one drive shaft 230 along the axial direction can drive two lamps to reciprocate along the axial direction of the drive shaft 230. A first drive member 241 can drive multiple drive shafts 230 to rotate, thereby driving the lamp fixtures 220 to reciprocate along the first direction. A second drive member 251 can drive multiple drive shafts 230 to move along their own axial direction, thereby driving the lamp fixtures 220 to reciprocate along the axial direction of the drive shaft 230. A third drive member drives the first drive member 241, the second drive member 251, the drive shaft 230, and the lamps to reciprocate along the height direction. The entire device has a simple and compact structure and high detection efficiency.

[0093] In some embodiments, please refer to Figure 2Multiple detection probes 120 are provided, arranged in an array to achieve multi-angle lamp brightness detection. For example, there may be three, five, six, or other numbers of detection probes 120. When there are five detection probes 120, one detection probe 120 is located in the center, and the other four detection probes 120 are arranged around the central detection probe 120. When there are six detection probes 120, the six detection probes 120 can be divided into two groups, with three detection probes 120 in each group. The three detection probes 120 are arranged sequentially and spaced apart along a first direction, and the two groups of detection probes 120 are arranged spaced apart along the height direction; or, the three detection probes 120 in each group are arranged sequentially and spaced apart along the height direction, and the two groups of detection probes 120 are arranged spaced apart along the first direction. The above are just examples and are not intended to limit the scope. In some embodiments, the detection probes 120 can be located on any side of the detection box 110. In some embodiments, the detection probes 120 are located on the side of the detection box 110 away from the lamp fixture fixing member 220, which makes it easier to collect the light from the lamp and improves the detection effect.

[0094] The detection probe 120 is selected from light intensity sensors that can detect light intensity, such as photosensors, and the specific selection is not limited in this application.

[0095] The lamp holder 220 is located inside the detection chamber and is used to fix the lamp. In some embodiments, the lamp holder 220 can be connected to the detection chamber by snap-fit ​​or screw-fit. For some embodiments, please refer to... Figure 4 The lamp fixture fixing component 220 is a clamping component, which includes a second bracket 221, a clamping plate 222, and a second elastic element 223. The second bracket 221 is connected to the drive shaft 230. There are two clamping plates 222, which are spaced apart and slidably connected to the second bracket 221. There are two second elastic elements 223, which are respectively connected to the opposite sides of the two clamping plates 222 and are both connected to the second bracket 221. The two clamping plates 222 approach each other under the elastic force of the second elastic element 223. When clamping is required, the two clamping plates 222 are first moved away by the operation. At this time, the two second elastic elements 223 are compressed, and the lamp fixture is placed between the two clamping plates 222. Under the restoring force of the second elastic element 223, the two clamping plates 222 will approach each other, thereby clamping the lamp fixture.

[0096] The second elastic element 223 can be a spring or a sheet spring, and this application does not impose any restrictions. The clamping member clamps the lamp by setting the second elastic element 223. When the lamp is a vehicle lamp, the second elastic element 223 will cause the vehicle lamp to bounce when the vehicle lamp moves back and forth along the first direction, the axial direction of the drive shaft 230 and the height direction, thereby simulating the movement state of the vehicle lamp under vehicle bumping conditions.

[0097] To improve the stability of the two clamping plates 222 sliding on the second bracket 221, in some embodiments, please refer to [the relevant documentation]. Figure 4 The second bracket 221 is provided with a slide rod 224 that is angled to the drive shaft 230. The second elastic element 223 is a spring that is loosely sleeved outside the slide rod 224. Two clamping plates 222 are slidably connected to the slide rod 224. In some embodiments, the slide rod 224 extends along a first direction and is parallel to the first screw 244. In other embodiments, the slide rod 224 may also have an angle with the first screw 244.

[0098] In some embodiments, please continue to refer to Figure 4 The second bracket 221 is provided with two mounting plates 225 that act on the two second elastic members 223 respectively. The two mounting plates 225 are located on the outside of the two second elastic members 223 and connected to the end of the slide rod 224. The second elastic members 223 are located between the mounting plates 225 and the clamping plate 222 on the same side.

[0099] In some embodiments, the screw sleeve 243 is connected to the second bracket 221, the clamping plate 222 and the slide bar 224 are located outside the mounting box 246, the mounting box 246 is provided with an extension hole for the lamp fixing member to extend out, the length direction of the extension hole extends along the first direction, so that the screw sleeve 243 does not interfere with the extension hole when it reciprocates along the first direction.

[0100] In some embodiments, please continue to refer to Figure 4 The first drive unit 240 also includes a third guide rod 247 extending along a first direction. The third guide rod 247 is located inside the mounting box 246 and connected to the inner wall of the mounting box 246. The screw sleeve 243 is slidably connected to the third guide rod 247.

[0101] Based on the same technical concept as the first aspect, the second aspect of this application provides a lamp brightness detection system that can detect the brightness of automotive headlights as well as the brightness of lighting fixtures such as streetlights and signal lights that require brightness detection. Furthermore, the lamp brightness detection system can simultaneously detect the brightness of multiple lamps, resulting in high detection efficiency and high accuracy.

[0102] The lamp brightness detection system provided in this application includes a power supply unit, a control unit, and a lamp brightness detection device 1000 of the first aspect. The power supply unit is located on the detection box 110 and is used to supply power to the lamp. The control unit is electrically connected to the detection probe 120 of the lamp brightness detection device 1000.

[0103] The power supply unit can be a power source, such as a rechargeable power source, or an interface for connecting to a power source. Specifically, the power supply unit can be located on the inner wall of the detection box 110 or installed inside the mounting box 246.

[0104] Based on the same technical concept as the second aspect, an embodiment of the third aspect of this application provides a method for detecting the brightness of a lamp, applicable to the lamp brightness detection system of the second aspect, for detecting the brightness of a lamp.

[0105] The lamp brightness detection method provided in this application includes the following steps:

[0106] S1. Fix the multiple lamps to be tested one by one to the lamp fixing parts 220 of the lamp brightness detection device 1000 and connect them to the power supply unit.

[0107] Specifically, multiple lamps to be tested are fixed one by one to the lamp fixing member 220 of the lamp brightness detection device 1000 and electrically connected to the power supply. Then, the third drive unit 260 is started to drive the cover device 112 and the lamp fixing member 220 to move downward along the height direction, so that the cover device 112 covers the operation port 111a of the box 111, forming a light-shielding and sealed detection chamber, and the lamps to be tested enter the detection chamber of the detection box 110.

[0108] S2. The power supply unit is turned on to supply power to the lamp under test. The detection probe 120 detects the initial brightness of the lamp under test and transmits it to the control unit.

[0109] S3. Start the first drive unit 240, the second drive unit 250 and the third drive unit 260. The lamp fixture fixing part 220 moves back and forth along the first direction, the axial direction of the transmission shaft 230 and the height direction, driving multiple lamps to be tested to move back and forth along the first direction, the axial direction of the transmission shaft 230 and the height direction.

[0110] S4. During the reciprocating movement of multiple lamps to be tested, the detection probe 120 detects the real-time brightness of the lamps to be tested and transmits it to the control unit.

[0111] The following section uses vehicle headlights as an example and, in conjunction with a specific headlight brightness detection system, provides a detailed explanation of the headlight brightness detection method described in this application:

[0112] Multiple test boxes 110 have their bodies 111 located on a test platform. The base 261 of the third drive unit 260 is fixedly installed. The cover device 112 is located above the operating port 111a. The operator attaches multiple vehicle lights to be tested to their corresponding clamps and drives the telescopic member 263, causing the telescopic end to descend. The support structure 262, the first drive unit 240, the second drive unit 250, the cover device 112, and the mounting box 246 connected to the support structure 262 all descend, causing the cover device 112 to cover the corresponding operating port 111a of the box body 111. After the cover device 112 covers the operating port 111a, the telescopic end of the telescopic member 263 continues to descend, causing the first elastic member 112d to be stretched. The light-shielding strip 112c of the cover device 112 is fully inserted into the elongated hole 111b of the box body 111, forming a light-free test cavity inside the test box 110.

[0113] Then the power supply unit is turned on to supply power to the headlight under test, and the detection probe 120 detects the initial brightness of the headlight under test and transmits it to the control unit.

[0114] At this time, the telescopic component 263 is activated, causing the support structure 262, the first drive unit 240, the second drive unit 250, and multiple vehicle lights to be tested to reciprocate along the height direction. During the reciprocating movement, light may enter the detection chamber through the elongated hole 111b. The mounting box 246 fits against the inner wall of the box body 111, ensuring that the detection chamber has a good light-shielding effect. The first drive component 241 is activated, and the transmission shaft 230 rotates, thereby driving the first screw 244 to rotate. The screw sleeve 243 reciprocates along the axial direction of the first screw 244, driving the vehicle lights to be tested to reciprocate along the axial direction of the first screw 244. The second drive component 251 is activated, and the second screw 253 rotates. The first bracket 252 and the transmission shaft 230 reciprocate together along the axial direction of the transmission shaft 230. Since the first transmission mechanism 242 is a transmission mechanism with a certain degree of elasticity, the transmission shaft 230 and the first drive component 241 can produce a slight relative position change along the axial direction of the transmission shaft 230. The reciprocating movement of the drive shaft 230 along its own axial direction causes the mounting box 246 and the clamping member to reciprocate along the axial direction of the drive shaft 230.

[0115] During the reciprocating movement of the aforementioned lamp fixture 220 along the first direction, the axial direction of the drive shaft 230, and the height direction, the detection probe 120 detects the real-time brightness of the lamp under test and transmits it to the control unit.

[0116] After the test is completed, the first drive unit 240, the second drive unit 250 and the third drive unit 260 stop running, the power supply unit is turned off, the telescopic component 263 is opened, the telescopic end of the telescopic component 263 moves upward, the cover device 112 gradually moves upward, while the position of the box 111 remains unchanged, so that the operating port 111a is opened and the vehicle light is removed from the lamp fixing component 220.

[0117] The lamp brightness detection device 1000, system, and method provided in this application have at least the following advantages:

[0118] (1) Multiple drive shafts 230 are arranged side by side, and detection boxes 110 are set at both ends of the drive shafts 230. The brightness of multiple lamps can be detected at the same time, and the lamps are driven to reciprocate in the first direction, the axial direction of the drive shaft 230 and the height direction relative to the box body 111 of the detection box 110, thereby realizing the movement of the lamps in six degrees of freedom, which greatly improves the detection range of the lamps.

[0119] (2) Only one of the first driving component 241 and the second driving component 251 is provided, which can realize the synchronous operation of lamps in multiple detection boxes 110 at the same time. This improves the detection efficiency, while the structure is simple and compact, the detection range is large, the detection efficiency is high, and the cost of the whole device is greatly reduced.

[0120] (3) By fixing the detection probe 120 and moving the lamp back and forth along the first direction, the axial direction of the drive shaft 230 and the height direction, the detection accuracy is closer to the working state of the vehicle lamp.

[0121] (4) By providing a cover device 112 connected to the mounting box 246 via the first elastic member 112d above it, the operating port 111a of the box 111 can be closed when the lamp descends into the detection cavity inside the box 111, thereby ensuring the sealing of the detection box 110 and guaranteeing the detection effect. In addition, after the telescopic member 263 drives the cover device 112 to descend and close the detection box 110, due to the action of the first elastic member 112d, the telescopic member 263 can continue to drive the mounting box 246 to move downward, so as to drive the mounting box 246 to move upward a certain distance while ensuring the sealing of the cover device 112, thereby enabling the vehicle lamp to move up and down in the vertical direction inside the detection box 110, improving the detection range of the vehicle lamp.

[0122] (5) The lamp fixture fastener 220 is a clamping component with elastic elements. When the lamp moves, the instability of the elastic elements causes the lamp to bounce, thereby simulating the running state of the lamp under vehicle bumpy conditions.

[0123] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0124] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application 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 this application.

[0125] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0126] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0127] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A lamp brightness detection device, characterized in that, include: A brightness detection assembly is provided in multiple locations, and the multiple brightness detection assemblies are spaced apart along a first direction. Each brightness detection assembly includes a detection box with a detection cavity and a detection probe disposed in the detection cavity. A lamp fixing device includes a driving device and lamp fixing components in the same number as the detection box. Each lamp fixing component is correspondingly disposed within the detection cavity. The lamp fixing components are connected to the driving device via a transmission shaft. The driving device includes a first driving unit, a second driving unit, and a third driving unit. The first driving unit drives the lamp fixing components to move along a first direction; the second driving unit drives the lamp fixing components and the transmission shaft to move axially along the transmission shaft; the third driving unit drives the lamp fixing components, the transmission shaft, the first driving unit, and the second driving unit to move along a height direction. The transmission shaft is angled relative to the first direction.

2. The lamp brightness detection device according to claim 1, characterized in that, The first driving unit includes a first driving component, a first transmission mechanism, a screw sleeve, and a first screw rod that is threadedly engaged with the screw sleeve; the first screw rod and the screw sleeve are located in the detection cavity, the first screw rod is connected to the transmission shaft for force transmission and is set at an angle, and the first driving component is connected to the transmission shaft for force transmission through the first transmission mechanism; The lamp holder can move along the first screw under the drive of the first drive member.

3. The lamp brightness detection device according to claim 2, characterized in that, The number of the drive shaft, the screw sleeve, and the first screw is the same as the number of the lamp fixing parts. The first transmission mechanism is connected to one of the drive shafts for force transmission. The first drive unit also includes a second transmission mechanism that is connected to each of the drive shafts for force transmission. The first transmission mechanism and / or the second transmission mechanism are belt drive mechanisms.

4. The lamp brightness detection device according to claim 1, characterized in that, The second drive unit includes a second drive member, a first bracket, and a second screw parallel to the drive shaft and connected to the second drive member for force transmission. The second screw is threadedly connected to the first bracket, and the drive shaft is rotatably mounted on the first bracket. The lamp fixture and the drive shaft can move axially along the drive shaft under the drive of the second drive unit.

5. The lamp brightness detection device according to claim 4, characterized in that, The first bracket has two opposing first limiting surfaces that are angled to the drive shaft, and the drive shaft has two second limiting surfaces that respectively cooperate with the two first limiting surfaces; the second drive unit also includes a first guide rod that is parallel to the second screw, and the first guide rod is slidably connected to the first bracket.

6. The lamp brightness detection device according to claim 1, characterized in that, The third drive unit includes a base, a support structure, and a telescopic member that reciprocates along the height direction. The telescopic member is connected to the base and the support structure. The support structure is connected to the drive shaft, the first drive unit, and the second drive unit. The lamp fixture, the first drive unit, and the second drive unit can move along the height direction under the drive of the third drive unit.

7. The lamp brightness detection device according to claim 6, characterized in that, The third drive unit includes a second guide rod extending along the height direction and movably connected to the support structure, the second guide rod being connected to the base.

8. The lamp brightness detection device according to any one of claims 1-7, characterized in that, The detection box includes a closing device and a box body with an operating port. The closing device moves along the height direction under the drive of the third driving unit so that the closing device closes the operating port of the box body to form the detection cavity.

9. The lamp brightness detection device according to claim 8, characterized in that, The lamp fixture fixing component is connected to the cover device via a first elastic member extending along the height direction, and the box body is provided with an elongated hole into which the drive shaft extends and reciprocates along the height direction.

10. The lamp brightness detection device according to claim 9, characterized in that, The first drive unit further includes mounting boxes, the same number as the detection boxes, located within the detection cavity. The mounting boxes are connected to the lamp fixture, and are fitted against the inner wall of the elongated hole. The drive shaft is rotatably mounted on the mounting box; and / or, The closing device includes a cover plate and a limiting plate connected to each other. When the closing device closes onto the box, the limiting plate is in contact with the inner wall of the detection cavity, and the first elastic element is connected to the cover plate.

11. The lamp brightness detection device according to any one of claims 1-7, characterized in that, The brightness detection assembly includes two detection boxes arranged opposite each other along the axial direction of the drive shaft; multiple detection probes are provided, and the multiple detection probes are arranged in an array; the detection probes are located on the side of the detection box away from the lamp fixture fixing component.

12. The lamp brightness detection device according to any one of claims 1-7, characterized in that, The lamp fixture fixing component is a clamping component, and the clamping component includes: The second bracket is connected to the drive shaft; Two clamping plates are spaced apart and are both slidably connected to the second bracket; Two second elastic elements are respectively connected to the opposite sides of the two clamping plates, and both are connected to the second bracket.

13. The lamp brightness detection device according to claim 12, characterized in that, The second bracket is provided with a slide rod that is angled to the drive shaft, the second elastic element is a spring that is loosely sleeved outside the slide rod, and the two clamping plates are slidably connected to the slide rod.

14. A lighting fixture brightness detection system, characterized in that, include: The lamp brightness detection device according to any one of claims 1-13; A power supply unit, located on the detection box, is used to supply power to the lamps; The control unit is electrically connected to the detection probe of the lamp brightness detection device.

15. A method for detecting the brightness of a luminaire, applicable to the luminaire brightness detection system of claim 14, the method comprising the following steps: Multiple lamps to be tested are fixed one by one to the lamp fixing parts of the lamp brightness detection device and electrically connected to the power supply unit; The power supply unit is turned on to supply power to the lamp under test, and the detection probe detects the initial brightness of the lamp under test and transmits it to the control unit; The first drive unit, the second drive unit, and the third drive unit are activated, and the lamp fixture fixing component reciprocates along the first direction, the axial direction of the drive shaft, and the height direction, thereby driving multiple lamps to be tested to reciprocate along the first direction, the axial direction of the drive shaft, and the height direction. During the reciprocating movement of multiple lamps under test, the detection probe detects the real-time brightness of the lamps under test and transmits it to the control unit.

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