CN209659681U - A kind of LED module subtest equipment - Google Patents
A kind of LED module subtest equipment Download PDFInfo
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- CN209659681U CN209659681U CN201920167818.0U CN201920167818U CN209659681U CN 209659681 U CN209659681 U CN 209659681U CN 201920167818 U CN201920167818 U CN 201920167818U CN 209659681 U CN209659681 U CN 209659681U
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Abstract
A kind of LED module subtest equipment provided by the utility model, pass through setting power module, input module and the master control borad that connect with power module and input module respectively, user changes master control borad by input module and exports to the control signal of LED drive module, and then change the working condition of LED module, realize corresponding test function.Compared to traditional scheme using host computer and CAN transceiver, testing cost is reduced, and directly controls the control signal of output to LED drive module using input module, it is easy to operate, it is high-efficient.
Description
Technical field
The utility model relates to vehicle part testing fields, more specifically to a kind of LED (Light-Emitting
Diode, light emitting diode) mould group subtest equipment.
Background technique
For the car lighting lamp being made of LED, the Grain size controlling ability of LED module is to measure the car lighting lamp behaviour
Important evidence.Therefore, in the design process, need to test the Grain size controlling ability of LED module.The Grain size controlling of LED module
Ability is all LED particles, and the ability of corresponding light type is formed according to control signal.
In the test process for carrying out Grain size controlling ability to LED module, illumination performance and the verifying of LED module are studied
The reliability of LED drive module；It is sent to the control signal of LED module, by adjusting LED drive module to change LED driving
Module exports the electric current of each LED particle, so that L ED mould group forms corresponding light type, completes test.But it is existing
LED module subtest equipment, need on host computer operation change to control signal, and CAN (Controller is set
Area Network, controller local area network) transceiver carries out coherent signal transmitting, higher cost, and test process operation is multiple
It is miscellaneous, inefficiency.
Utility model content
In view of this, being intended to realize reduces cost the utility model proposes a kind of LED module subtest equipment, simplifies and survey
Examination operation, improves the purpose of testing efficiency.
To achieve the goals above, it is proposed that scheme it is as follows:
A kind of LED module subtest equipment, comprising: power module, input module and respectively with the power module
The master control borad connected with the input module；
The power module is also used to connect with the power input of LED drive module, with to the LED drive module
Power supply；
The master control borad is also used to connect with the control terminal of the LED drive module；
The input module is provided with the regulating key for user's operation.
Optionally, the input module, comprising: first switch, second switch and variable resistance；
One gear of the first switch corresponds to the LED module of vehicle left side headlamp, the first switch it is another
A gear corresponds to the LED module of vehicle right side headlamp；
One gear of the second switch corresponds to single LED test pattern of the LED module, the second switch it is another
One gear corresponds to the combination LED test pattern of the LED module；
The different stalls of the variable resistance correspond to the different test contents of the LED module.
Optionally, the first switch and/or the second switch are single-pole double-throw switch (SPDT).
Optionally, the variable resistance is knob variable resistance.
Optionally, LED module subtest equipment further include:
The output equipment connecting with the master control borad, the output equipment are used to show the test pattern of the LED module
And test content.
Optionally, the output equipment includes:
For showing the LED light of the test pattern of the LED module；
For showing the charactron of the test content of the LED module.
Optionally, the power module, comprising:
Output end is separately connected the rectifier of the master control borad and the LED drive module；
The input terminal of the rectifier is used for external AC power source.
Optionally, the power module, comprising: rectifier, energy storage device and DC-to-dc converter；
The output end of rectifier is separately connected the master control borad and the LED drive module；
The input terminal of the rectifier is used for external AC power source；
The energy storage device is separately connected the rectifier and the DC-to-dc converter；
The DC to DC converter is also respectively connected with the master control borad and the LED drive module.
Optionally, the power module, comprising: energy storage device and DC-to-dc converter；
The energy storage device connects the DC-to-dc converter；
The DC to DC converter is separately connected the master control borad and the LED drive module.
Optionally, the power module, further includes: the rectifier being connect with the energy storage device；
The input terminal of the rectifier is used for external AC power source.
Compared with prior art, the technical solution of the utility model has the advantage that
Above-mentioned technical proposal provide LED module subtest equipment, by setting power module, input module and
The master control borad connecting respectively with power module and input module changes master control borad by input module and exports to LED drive module
Control signal, and then change LED module working condition, realize corresponding test function.Host computer is used compared to traditional
With the scheme of CAN transceiver, testing cost is reduced, and directly controls the control of output to LED drive module using input module
Signal processed, it is easy to operate, it is high-efficient.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is the embodiments of the present invention, for those of ordinary skill in the art, without creative efforts, also
Other attached drawings can be obtained according to the attached drawing of offer.
Fig. 1 is the structural schematic diagram for the LED module subtest equipment that the utility model one embodiment provides；
Fig. 2 is the concrete structure schematic diagram for the power module that the utility model one embodiment provides；
Fig. 3 is the structural schematic diagram for the switch that the utility model one embodiment provides；
Fig. 4 is the structural schematic diagram for the variable resistance that the utility model one embodiment provides；
Fig. 5 is the structural schematic diagram for the LED module subtest equipment that another embodiment of the utility model provides；
Fig. 6 is the structural schematic diagram for the LED module subtest equipment that another embodiment of the utility model provides；
Fig. 7 is the structural schematic diagram for the LED module subtest equipment that another embodiment of the utility model provides；
Fig. 8 is the structural schematic diagram for the LED module subtest equipment that another embodiment of the utility model provides.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clear, complete description, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
It is the LED module subtest equipment that one embodiment of the utility model provides referring to Fig. 1.The LED module is auxiliary
Help test equipment, comprising: power module 11, input module 12 and respectively connect with power module 11 and input module 12
Master control borad 13.Solid line indicates that electric power connection line, dotted line indicate signal transmssion line in figure.
Power module 11 is also used to connect with the power input of LED drive module 51, to supply to LED drive module 51
Electricity.In a specific embodiment, such as Fig. 2, power module 11 includes that rectifier 111, energy storage device 112 and DC-DC turn
Parallel operation 113.The input terminal of rectifier 111 is used for external AC power source 114；The output end of rectifier 111 is separately connected master control borad
13 and LED drive module 51.
Direct current needed for the alternating current of input is converted to master control borad 13 by rectifier 111, and be converted to LED drive module
Direct current needed for 51.For example, being 220V alternating current in external AC power source 114, voltage needed for master control borad 13 is 5V, LED
When voltage needed for drive module 51 is 12V, 220V alternating current is converted to 5V direct current and is supplied to master control borad 13 by rectifier 111,
And 220V alternating current is converted into 12V DC electricity and is supplied to LED drive module 51.
Energy storage device 112 is specifically as follows battery or super capacitor etc..Energy storage device 112 respectively with rectifier 111 and
DC-to-dc converter 113 connects.In the not enough power supply of energy storage device 112, by rectifier 111 by external alternating current
Direct current is converted to as the charging of energy storage device 112.Energy storage device 112 is separately connected master control borad by DC-to-dc converter 113
13 and LED drive module 51.The direct current that energy storage device 112 exports is converted to 13 institute of master control borad by DC-to-dc converter 113
The direct current needed, and direct current needed for being converted to LED drive module 51.Two kinds of power supply modes, so that LED module subtest
Equipment using more flexible.
Master control borad 13 is also used to connect with the control terminal of LED drive module 51, to export to the LED drive module 51
Control signal.Input module 12 is provided with the regulating key for user's operation, defeated to LED drive module 51 to adjust master control borad 13
Control signal out, and then adjust the working condition of LED module 52.
The working principle of LED module subtest equipment provided by the utility model, user manually control input module 12
Working condition, master control borad 13 identifies the current working condition of input module 12, according to the work of pre-set input module 12
Make the mapping relations between state and the control instruction of LED drive module 51, matching obtains the work current with input module 12
The corresponding control instruction of state, and corresponding control signal is generated, control signal is exported by CAN bus to LED and drives mould
Block 51 completes test so that LED module 51 forms corresponding light type.
In a specific embodiment, input module 12 may include first switch, second switch and variable resistance.Switch
Gear include on state and off-state；The working condition that the gear of switch namely switchs.One shelves of first switch
The LED module of the corresponding vehicle left side headlamp in position, another gear of first switch correspond to the LED mould of vehicle right side headlamp
Group.One gear of second switch corresponds to single LED test pattern of LED module 52, another gear of second switch corresponds to LED
The combination LED test pattern of mould group 52.Single LED test pattern of LED module 52 indicates that LED particle is individually surveyed one by one
The mode of examination；The combination LED test pattern of LED module 52 indicates the mode that multiple LED particles are combined with test, for example,
Certain a line LED or a certain column LED is tested.For master control borad 13 according to the gear of first switch, determination is shone vehicle left side
The LED module of bright headlight or the LED module of vehicle right side lighting headlight are tested；And according to the gear of second switch, really
Determining test pattern is combination LED test pattern or list LED test pattern.
The different stalls of variable resistance correspond to the different test contents of LED module.The different stalls of variable resistance are namely
The different working condition of variable resistance.Specifically, the different stalls of variable resistance refer to be exactly the access circuit of variable resistance not
The corresponding state with resistance value.Under single LED test pattern, test content includes but is not limited to reach object brightness to LED particle
The test of value；In the case where combining LED test pattern, test content includes but is not limited to carry out to the function of lighting of certain row LED particle
Test, tests the function of lighting of certain column LED particle.
Referring to Fig. 3, first switch and the second switch is single-pole double-throw switch (SPDT) K.The fixing end of single-pole double-throw switch (SPDT) K connects
The sampling end or hanging of the movable end connection master control borad 13 of the power end U of master control borad 13, single-pole double-throw switch (SPDT) K.Work as single-pole double throw
When the movable end of switch K is hanging, the collected voltage of master control borad 13 is zero due to pull down resistor built in it；Work as single-pole double-throw switch (SPDT)
When the sampling end of the movable end connection master control borad 13 of K, the collected voltage of master control borad 13 is supply voltage.In the present invention
It is off-state when the movable end of definition single-pole double-throw switch (SPDT) K is hanging；The movable end of single-pole double-throw switch (SPDT) K connects master control borad 13
Sampling end when, be on state.Master control borad 13 according to collecting the corresponding different voltages of first switch and the second switch,
Identify the different stalls of first switch and the second switch.
Referring to fig. 4, variable resistance is knob variable resistance.The two sides of knob variable resistance connect master control borad 13 respectively
Power end U and ground；The sampling end of the sliding termination master control borad 13 of knob variable resistance, when knob, sliding end is in electricity
Position in resistance changes, and then the collected voltage of master control borad 13 changes therewith.Master control borad 13 is according to collected knob
The corresponding different voltages of formula variable resistance identify the different stalls of knob variable resistance.Using knob variable resistance, change
To the control instruction of LED drive module 51, high resolution and adjust rapid.
In order to enable test pattern and test content visualization, can also be arranged the output equipment connecting with master control borad 13,
Output equipment is used to show the test pattern and test content of LED module 52.Referring to Fig. 5, output equipment 14 includes LED light
141 and charactron 142；LED light 141 is used to show the test pattern of LED module 52；Charactron 142 is for showing LED mould
The test content of group 52.
Charactron 142 can be four days alphanumeric code pipe, and front two uses the decimal system, and latter two use 16 systems.Preceding two
Position represents different meanings with latter two.Under single LED test pattern, front two represents LED particle serial number, and latter two represent brightness.
Such as show 09C8, representative makes No. 9 LED particles reach 200 brightness values.
It combines under LED test pattern, front two represents combination, and latter two represent the specific location of display.Such as display
0201, representative lights the 1st column LED particle；Display 0301, representative light the 1st row LED particle etc..It should be noted that
Two are invalid in some cases afterwards, for example, front two 00, represents all LED particles and does not light, i.e., it is completely black；Front two
01, it represents all LED particles and lights, is i.e. all light；Two are invalid after under both of these case.
Any one pin with input acquisition function on master control borad 13 can be for the sampling end of switch.For can
The sampling end of power transformation resistance should be the pin for having AD conversion function on master control borad 13.
Fig. 2 illustrates only the power module 11 with component 111~113, it should be understood that being not required for implementing institute
There is the component shown, the implementation that can be substituted is more or less component.Such as power module shown in fig. 6 includes output end
It is separately connected the rectifier 111 of master control borad 13 and LED drive module 51.The input terminal of rectifier 111 is used for external AC power source.
Direct current and LED drive module 51 needed for the alternating current that external AC power source is transmitted is converted to master control borad 13 by rectifier 11
Required direct current, and power respectively to master control borad 13 and LED drive module 51.
For convenient for using LED module subtest equipment in the inconvenient region that powers, power module 11 includes energy storage device
112 and DC-to-dc converter 113.As shown in fig. 7, energy storage device 112 connects DC-to-dc converter 113.DC-DC
Exchanger 113 is also respectively connected with master control borad 13 and LED drive module 51.DC to DC converter 113 is used for energy storage device
Direct current needed for direct current and LED drive module 51 needed for 112 direct currents provided are converted to master control borad 13, and respectively to
Master control borad 13 and LED drive module 51 are powered.
Shown in Figure 8, power module 11 includes rectifier 111, energy storage device 112 and DC-to-dc converter 113.
Energy storage device 112 is separately connected DC-to-dc converter 113 and rectifier 111.DC to DC converter 112 is also respectively connected with
Master control borad 13 and LED drive module 51.DC to DC converter 112 is for being converted to the direct current that energy storage device 112 provides
Direct current needed for direct current needed for master control borad 13 and LED drive module 51, and respectively to master control borad 13 and LED drive module
51 power supplies.The input terminal of rectifier 111 is used for external AC power source.In 112 not enough power supply of energy storage device, pass through rectifier
The alternating current that external AC power source provides is converted to direct current by 111, is charged for energy storage device 112.
Herein, the terms "include", "comprise" or any other variant thereof is intended to cover non-exclusive inclusion, from
And to include the equipment of a series of elements not only to include those elements, but also including other elements that are not explicitly listed,
It further include either the element intrinsic for this equipment.In the absence of more restrictions, by sentence " including one
It is a ... " limit element, it is not excluded that include the element equipment in there is also other identical elements.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.
To the above description of utility model the disclosed embodiments, professional and technical personnel in the field is made to can be realized or use
The utility model.Various modifications to these embodiments will be readily apparent to those skilled in the art, this
General Principle defined in text can without departing from the spirit or scope of the present utility model, in other embodiments
It realizes.Therefore, the present invention will not be limited to the embodiments shown herein, and be to fit to it is disclosed herein
Principle and the consistent widest scope of features of novelty.
Claims (10)
1. a kind of LED module subtest equipment characterized by comprising power module, input module and respectively with institute
State the master control borad that power module is connected with the input module；
The power module is also used to connect with the power input of LED drive module, to power to the LED drive module；
The master control borad is also used to connect with the control terminal of the LED drive module；
The input module is provided with the regulating key for user's operation.
2. LED module subtest equipment according to claim 1, which is characterized in that the input module, comprising: the
One switch, second switch and variable resistance；
One gear of the first switch corresponds to the LED module of vehicle left side headlamp, another shelves of the first switch
The LED module of the corresponding vehicle right side headlamp in position；
One gear of the second switch corresponds to single LED test pattern of the LED module, the second switch another
Gear corresponds to the combination LED test pattern of the LED module；
The different stalls of the variable resistance correspond to the different test contents of the LED module.
3. LED module subtest equipment according to claim 2, which is characterized in that the first switch and/or described
Second switch is single-pole double-throw switch (SPDT).
4. LED module subtest equipment according to claim 2, which is characterized in that the variable resistance is knob
Variable resistance.
5. LED module subtest equipment according to claim 1, which is characterized in that further include:
The output equipment connecting with the master control borad, the output equipment are used to show test pattern and the survey of the LED module
Try content.
6. LED module subtest equipment according to claim 5, which is characterized in that the output equipment includes:
For showing the LED light of the test pattern of the LED module；
For showing the charactron of the test content of the LED module.
7. LED module subtest equipment described in any one according to claim 1~6, which is characterized in that the power supply mould
Block, comprising:
Output end is separately connected the rectifier of the master control borad and the LED drive module；
The input terminal of the rectifier is used for external AC power source.
8. LED module subtest equipment according to claim 7, which is characterized in that the power module, further includes:
Energy storage device and DC-to-dc converter；
The energy storage device is separately connected the rectifier and the DC-to-dc converter；
The DC to DC converter is also respectively connected with the master control borad and the LED drive module.
9. LED module subtest equipment described in any one according to claim 1~6, which is characterized in that the power supply mould
Block, comprising: energy storage device and DC-to-dc converter；
The energy storage device connects the DC-to-dc converter；
The DC to DC converter is separately connected the master control borad and the LED drive module.
10. LED module subtest equipment according to claim 9, which is characterized in that the power module, further includes:
The rectifier being connect with the energy storage device；
The input terminal of the rectifier is used for external AC power source.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920167818.0U CN209659681U (en) | 2019-01-30 | 2019-01-30 | A kind of LED module subtest equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920167818.0U CN209659681U (en) | 2019-01-30 | 2019-01-30 | A kind of LED module subtest equipment |
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| CN209659681U true CN209659681U (en) | 2019-11-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112601331A (en) * | 2020-11-02 | 2021-04-02 | 光华临港工程应用技术研发(上海)有限公司 | Lighting adjusting device and lighting apparatus based on thing networking |
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2019
- 2019-01-30 CN CN201920167818.0U patent/CN209659681U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112601331A (en) * | 2020-11-02 | 2021-04-02 | 光华临港工程应用技术研发(上海)有限公司 | Lighting adjusting device and lighting apparatus based on thing networking |
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Address after: 4 / F, building 1, No.14 Jiuxianqiao Road, Chaoyang District, Beijing 100020 Patentee after: Beijing Jingwei Hirain Technologies Co.,Inc. Address before: 8 / F, block B, No. 11, Anxiang Beili, Chaoyang District, Beijing 100101 Patentee before: Beijing Jingwei HiRain Technologies Co.,Ltd. |