CN-224203303-U - Resistance testing device for image signal generator

CN224203303UCN 224203303 UCN224203303 UCN 224203303UCN-224203303-U

Abstract

The utility model discloses a resistance testing device for an image signal generator, which belongs to the technical field of photoelectric detection and comprises a resistance module and a wiring module, wherein the resistance module is divided into a plurality of resistance modules, the number of the resistors in each resistance module can be flexibly set according to the needs, the applicability of the resistance testing device is improved, the wiring module is used for connecting the resistance module with an interface channel of the image signal generator to be tested, the remote connection between the resistance module and the image signal generator to be tested is realized, the load of the resistance module on the image signal generator during testing is reduced, the number of the resistors in the resistance testing device is not limited by the loadable range of the to-be-tested piece, the PCB is not required to be switched, the testability range of the resistance testing device is improved, and the cost is effectively reduced. The resistance testing device for the image signal generator has a simple structure, is convenient to detach and replace, can meet the requirements of different power resistors, and meets the requirement of heat dissipation in the device.

Inventors

ZHOU LANG
LIU ZHAOQING
ZHANG XIN
WANG RUIXING
Wei Zitong

Assignees

武汉精立电子技术有限公司
武汉精测电子集团股份有限公司

Dates

Publication Date: 20260505
Application Date: 20250403

Claims (10)

1. A resistance testing device for an image signal generator, comprising a plurality of resistors and a wiring module; The two ends of the resistor are provided with lead joints, a plurality of the resistors can be divided into a plurality of resistor modules, each resistor module comprises at least one resistor, One end of the wiring module is provided with a lead corresponding to the interface channel of the image signal generator to be tested, and the other end of the wiring module is a connector which is electrically connected with the lead and can be inserted into the interface of the image signal generator to be tested; the leads corresponding to each interface channel of the image signal generator include an input lead and an output lead for electrical connection to two lead terminals of a resistor module.
2. The resistance testing device for an image signal generator according to claim 1, wherein a plurality of said resistors are provided in said resistor module, and a plurality of said resistors are connected in parallel or in series.
3. The resistance testing device for an image signal generator of claim 1, further comprising a heat sink module, wherein the heat sink module comprises a heat sink or a TEC heat sink, and wherein a plurality of the resistors are disposed on the heat sink or the TEC heat sink.
4. A resistance testing device for an image signal generator according to claim 3, wherein said heat dissipating module comprises a plurality of heat dissipating fins arranged at intervals, a plurality of said resistors are uniformly distributed on a plurality of said heat dissipating fins, and said resistors are detachably connected to said heat dissipating fins.
5. The resistance testing device for image signal generator according to claim 4, wherein said heat sink is disposed perpendicular to the frame, and a plurality of said resistances on said heat sink are distributed on both sides of said heat sink in a staggered manner.
6. The resistance testing device for image signal generator according to claim 4 or 5, wherein said heat dissipating module further comprises a plurality of fans, a plurality of said fans are disposed on the same side of a plurality of said heat dissipating fins, each of said fans is disposed corresponding to a space channel between two adjacent heat dissipating fins, said fans are powered by a power source, and a plurality of said fans are disposed in parallel.
7. The resistance testing device for an image signal generator of claim 1, wherein the input lead and the output lead are electrically connected to a lead terminal by an alligator clip.
8. The resistance testing device for image signal generator according to claim 1, wherein said wiring module further comprises a wiring terminal block, wherein each contact at the bottom of said wiring terminal block is electrically connected to a plurality of lead terminals at both ends of said resistor in one-to-one correspondence, and the top of said wiring terminal block is connected to the corresponding said lead after being connected in series or in parallel via a wire.
9. The resistance testing device for image signal generator according to claim 6, further comprising a case, wherein the resistance module and the heat dissipation module are detachably disposed in the case, an opening is formed in a side of the case facing away from the fan, and one end of the wiring module is connected to the resistance module from the opening.
10. The resistance testing device for image signal generator according to claim 4, wherein said heat sink is provided with 2-8, and ten of said resistors are provided at intervals on both sides of each of said heat sinks.

Description

Resistance testing device for image signal generator Technical Field The utility model belongs to the technical field of photoelectric detection, and particularly relates to a resistance testing device for an image signal generator. Background With the rapid development of display technology, medium-sized OLED panels are increasingly used in consumer electronics, vehicle-mounted display, industrial control, and other fields. Because the OLED panel gradually ages during use, its performance parameters (e.g., brightness, chromaticity, response speed, etc.) change, and thus a higher voltage, higher current, and higher slew rate signal CELL PG device is required for testing. Along with the continuous improvement of the resolution and the size of the OLED panel, electronic components in CELL PG equipment develop towards the directions of high power and high density, and signal channels are more and more, so that the problem of crosstalk among channels is greatly increased, if the full-load data among channels cannot be accurately tested, the test result is inaccurate, the working performance of the OLED panel is further affected, and the reliability and the stability of a system are reduced. When the full-load test between channels is carried out, the current is required to be split through the resistors, and the current is generally inserted into the PG equipment through the PCB load resistors, but when the signal channels are increased, the number of the resistors required to be loaded is correspondingly increased, the volume and the weight of the testing device are obviously increased and exceed the load range of the PCB, the number of the load resistors on the PCB is constant, the requirements of different power resistors cannot be met, inconvenience is caused to the operation of a user, and the testing efficiency is reduced. Disclosure of utility model In view of one or more of the above-mentioned drawbacks or improvements of the prior art, the present utility model provides a resistance testing device for an image signal generator, which can separate a resistance from a part to be tested during testing, reduce the load of the part to be tested, flexibly change the resistance power according to the need, and improve the versatility of the device. In order to achieve the above object, the present utility model provides a resistance testing apparatus for an image signal generator, which includes a plurality of resistors and a wiring module; The two ends of the resistor are provided with lead joints, a plurality of the resistors can be divided into a plurality of resistor modules, each resistor module comprises at least one resistor, One end of the wiring module is provided with a lead corresponding to the interface channel of the image signal generator to be tested, and the other end of the wiring module is a connector which is electrically connected with the lead and can be inserted into the interface of the image signal generator to be tested; the leads corresponding to each interface channel of the image signal generator include an input lead and an output lead for electrical connection to two lead terminals of a resistor module. As a further improvement of the utility model, a plurality of resistors are arranged in the resistor module, and the resistors are connected in parallel or in series. The heat dissipation module comprises a heat dissipation sheet or a TEC heat sink, and a plurality of resistors are arranged on the heat dissipation sheet or the TEC heat sink. As a further improvement of the utility model, the heat dissipation module comprises a plurality of heat dissipation fins which are arranged at intervals, a plurality of resistors are uniformly distributed on the plurality of heat dissipation fins, and the resistors are detachably connected with the heat dissipation fins. As a further improvement of the utility model, the radiating fins are arranged perpendicular to the support, and a plurality of resistors on the radiating fins are distributed on two sides of the radiating fins in a staggered mode. As a further improvement of the utility model, the heat dissipation module further comprises a plurality of fans, wherein the fans are arranged on the same side of the plurality of heat dissipation fins, each fan is arranged corresponding to a spacing channel of two adjacent heat dissipation fins, the fans are powered by a power supply, and the fans are arranged in parallel. As a further improvement of the utility model, the input lead and the output lead are electrically connected to a lead terminal by means of a alligator clip. As a further improvement of the utility model, the wiring module further comprises a wiring terminal row, wherein the contacts at the bottom of the wiring terminal row are electrically connected with the lead joints at the two ends of the resistor in a one-to-one correspondence manner, and the tops of the wiring terminal row can be connected to the corresponding leads afte