CN108776036B - Intelligent testing system for refrigerator durability test - Google Patents
Intelligent testing system for refrigerator durability test Download PDFInfo
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- CN108776036B CN108776036B CN201810346626.6A CN201810346626A CN108776036B CN 108776036 B CN108776036 B CN 108776036B CN 201810346626 A CN201810346626 A CN 201810346626A CN 108776036 B CN108776036 B CN 108776036B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/005—Testing of complete machines, e.g. washing-machines or mobile phones
Abstract
The invention relates to the technical field of test equipment, and discloses an automatic test system for refrigerator durability tests, which comprises a control module, a test module and an uninterrupted power supply module, wherein the control module is used for controlling the working condition of the test module in real time, setting, adjusting and feeding back working parameters of the test module as required, the test module is used for executing tests on the refrigerator durability according to the parameters set by the control module, and the uninterrupted power supply module comprises a circuit control module, a commercial power module and a storage battery module and is used for supplying uninterrupted power to the control module and the test module; the refrigerator performance testing device can control the refrigerator testing process in real time, continuously test the performance of the refrigerator, well solve the problem of matching of the opening and closing tracks of the refrigerator door, can be quickly matched with refrigerators of various types, is convenient and quick to install, is simple and easy to carry the refrigerator up and down, can automatically and repeatedly open and close the upper door and the lower door of the refrigerator simultaneously, and has high safety and stability coefficient of equipment.
Description
Technical Field
The invention relates to the technical field of test equipment, in particular to an intelligent test system for refrigerator durability tests.
Background
At present, the automation and intelligent systems are applied more and more frequently in industrial production, and how to release workers from heavy work becomes a primary task for improving productivity. In the testing of the hinges of the refrigerator door, the tedious work of repeatedly opening and closing the door is faced. At present, the action of repeatedly opening and closing the door is mainly completed manually, the work is complicated and tedious, and the testing efficiency is low.
The existing refrigerator test module structure cannot be well matched with various types of refrigerators, is also poor in structural stability, and frequently has various faults of equipment per se in a batch of tests which are as long as tens of thousands of times in the process of a durability test, such as sucker dropping and mechanical arm abrasion, excessive door opening and closing force, uneven force application point, poor adjustability, incapability of well matching with refrigerator doors and the like, and the equipment safety and stability coefficient is low.
Meanwhile, in the communication process with refrigerator testers, the existing refrigerator is found in the process that the movement track of a rotating arm of the test module is matched with the opening and closing track of a refrigerator door, the rotating arm, a sucker and the refrigerator door can not be well matched due to the existence of track errors, and even impact can occur in the test process, so that the test module is forced to stop and needs to be reinstalled, even abnormal damage can occur to the hinge of the refrigerator due to the track errors, and the test module is also capable of enabling the sucker to freely adjust the position of the whole door surface of the refrigerator, so that the power damage can be caused due to uneven stress of a force arm caused by uneven stress of the refrigerator door, and the door can not be opened and closed simultaneously, so that the refrigerator door with more and more models and the appearance with different structures can.
In addition, the existing refrigerator testing system is not high in safety and stability, insufficient in power failure risk handling capacity, incomplete in remote control and real-time management and control performance and incomplete in automation and intelligence degree, and therefore improvement is urgently needed.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the intelligent testing system for the refrigerator durability test, which can control the refrigerator testing process in real time, continuously test the performance of the refrigerator, better solve the matching problem of the opening and closing tracks of the refrigerator door, can be quickly matched with the refrigerators of various models, is convenient and quick to install, simple and easy to carry up and down, can automatically and repeatedly open and close the upper door and the lower door of the refrigerator simultaneously, has high safety and stability coefficient and low fault rate, is not easy to damage the refrigerator, and has high automation degree, simple structure and low cost.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the invention provides an intelligent testing system for refrigerator durability tests, which comprises a control module, a testing module and a non-intermittent power supply module, wherein the control module is used for controlling the test module to run;
the control module comprises a processor module, a storage module, a communication module, a mobile receiving control terminal, a data acquisition module, a display module and an alarm module; the control module is used for controlling the working condition of the test module in real time and setting, adjusting and feeding back working parameters of the test module according to needs;
the testing module is used for executing a refrigerator durability test according to parameters set by the control module, and comprises a fixed connecting device for fixedly testing the refrigerator, a door opening connecting device for connecting a refrigerator door, a power device which is fixed on the fixed connecting device and used for driving the door opening connecting device, and a lifting table for carrying the tested refrigerator;
the fixed connecting device comprises a base, a plurality of fixed suckers, fixed sucker connecting rods, two supporting frames and a square frame, wherein the fixed suckers are used for being adsorbed on two side walls of the test refrigerator;
the door opening connecting device comprises a plurality of door opening suckers adsorbed on the refrigerator door, a door opening connecting rod used for fixing the door opening suckers, and a connecting frame used for connecting the door opening connecting rod and the fixed connecting device; the connecting frame comprises a plurality of L-shaped horizontal supports and a framework vertically and fixedly connected to the turning points of the L-shaped horizontal supports, the L-shaped horizontal supports are provided with long holes with the extending direction being the horizontal direction, and the L-shaped horizontal supports are vertically arranged on two adjacent L-shaped supports and can adjust the positions along the long hole direction;
the power device comprises an air pump, an upper pneumatic motor and a lower pneumatic motor, wherein the upper pneumatic motor and the lower pneumatic motor are respectively arranged at the opposite corners of the square frame and the base, and the lower pneumatic motor is embedded in the base and is flush with the surface of the base;
the connecting frame is fixedly connected to the rotating shafts of the upper pneumatic motor and the lower pneumatic motor, the central lines of the rotating shafts of the upper pneumatic motor and the lower pneumatic motor are positioned on the same straight line, and the connecting frame is driven to rotate back and forth through the rotation of the upper pneumatic motor and the lower pneumatic motor;
the lifting platform comprises two telescopic pipes fixedly arranged on the front wall of the base, a support bracket fixedly arranged at the top end of each telescopic pipe and perpendicular to the telescopic pipes, and an object stage arranged on the support bracket, wherein the telescopic pipes are respectively connected with an air pump through air pipes with pressure increasing valves and pressure releasing valves;
the uninterrupted power supply module comprises a circuit control module, a commercial power module and a storage battery module and is used for providing uninterrupted power supply for the control module and the test module.
Preferably, the storage module is used for storing the data acquired by the data acquisition module, the laser counter and the data acquired by the video probe; the processor module is used for calling data in the storage module, receiving an instruction signal of the mobile receiving control terminal received by the communication module and performing data processing, and sending a parameter adjusting signal to the air pump and the air motor, and the communication module transmits the data in the storage module to the mobile receiving control terminal in real time so as to be called and read by a tester in real time;
the processor module is one of an FPGA, a DSP and a singlechip;
the communication module comprises a 3G/4G/5G wireless communication module, a WIFI module, an NFC module, a Bluetooth module and a ZIGBEE communication module, and the various modules can be combined for use;
the data acquisition module comprises sensors arranged on the air pump, the pneumatic motor and the door opening connecting rod and a temperature and humidity sensor arranged on the test module;
the storage module comprises a random access memory module, an SD card module and a USB interface module, wherein the random access memory module is used for being matched with the processor module to increase the speed of memory and data processing, the SD card module is used for storing various acquired data for a long time, and the USB interface module is convenient for exporting copied data;
the mobile receiving control terminal comprises mobile receiving equipment and an APP installed on the mobile receiving equipment; the mobile receiving equipment is one of an intelligent bracelet, an intelligent mobile phone and a tablet computer;
the display module is used for displaying the real-time data acquired by the data acquisition module and the door opening times acquired by the laser counter;
the alarm module comprises a voice alarm module and a light alarm module and is used for sending out an alarm signal when the collection parameter value exceeds a preset threshold value.
Preferably, the fixed sucker connecting rod penetrates through the support seat arranged on the guide rails on the two sides of the base, the fixed sucker connecting rod can freely stretch out and draw back along the direction of the guide rail in the horizontal perpendicular mode, and the fixed sucker connecting rod is further provided with a locking device used for fixing and locking the fixed sucker connecting rod in the direction of the guide rail and the guide rail in the horizontal perpendicular mode respectively.
Preferably, the fixed sucker and the door opening sucker are both vacuum suckers, and the fixed sucker and the door opening sucker are connected to the air pump through a vacuum generator tube; the vacuum generator comprises an air inlet of the air pump, a vacuum air suction port, a low-pressure air chamber and an air outlet; the vacuum air suction port is L-shaped, is welded on the side wall of the low-pressure air chamber and is parallel to the air inlet of the air pump; the diameter of one end of the air inlet of the air pump, which is connected with the low-pressure air chamber, is smaller than that of the other end of the air inlet of the air pump.
Preferably, the door opening connecting rod is two from top to bottom, all is provided with the slot hole that extends along door opening connecting rod length direction, the equal elastic fixation of sucking disc that opens the door sets up on installing the base of door opening connecting rod, the base can be followed slot hole on the door opening connecting rod and reciprocated and be equipped with locking device.
Preferably, a laser counter for metering the door opening times and a 360-degree rotatable video probe for monitoring the working condition of the test module are arranged on the square frame.
Preferably, the lower side of the base is fixedly connected with a moving device, the moving device comprises two supporting plates, the top ends of the supporting plates are fixedly connected with the lower end of the base, two moving grooves are symmetrically formed in the inner sides of the supporting plates, a moving plate is jointly erected in the moving grooves, and the lower side of the moving plate is fixedly connected with rollers; the upper side of the movable plate is symmetrically connected with two first hinges, the supporting plates above the movable plate are rotatably connected with threaded rods, and a worm is fixedly connected between the two threaded rods; the threaded rods are sleeved with threaded sliding blocks, the threaded sliding blocks are provided with second hinges, and the second hinges are connected with the first hinges through rotating rods; the worm is meshed with a worm wheel on the upper side, and a rotating shaft is fixedly connected to the worm wheel.
Preferably, the control module can set and control the switching frequency, the switching times and the switching angle by adjusting parameters of the pneumatic motor.
Preferably, the circuit control module comprises a mains supply storage battery power supply conversion module, an inverter module, an output rectification filtering module and a charging control module, wherein the mains supply storage battery power supply conversion module is used for being connected to a storage battery for supplying power without obstacles when a mains supply fails; the inverter module is used for converting the direct current into alternating current required by other modules; the output rectifying and filtering module reduces alternating current components in pulsating direct current voltage as much as possible, keeps direct current components thereof, reduces output voltage ripple factors, and makes waveforms smoother to obtain direct current with straight waveforms; the charging protection module is connected with the storage battery module and used for protecting the battery and carrying out constant current charging on the battery, so that overcurrent and overvoltage phenomena are avoided, and the service life of the battery is effectively prolonged.
Preferably, the processor module, the storage module and the communication module are integrated on the same circuit board and are mounted on the side surface of the support frame through a protective box;
the uninterrupted power supply module is embedded in the side surface of the base and is provided with an air cooling device in a matching way;
the pressure increasing valve and the pressure reducing valve are fixedly arranged on the base, and a pedal plate for controlling the on-off of the pressure increasing valve and the pressure reducing valve is arranged on the base.
Compared with the prior art, the invention has the following beneficial effects:
(1) the invention relates to an intelligent testing system for refrigerator durability tests, wherein a testing module combines an L-shaped horizontal bracket and a door opening connecting rod together, on one hand, a door opening suction disc can be randomly adjusted on the surface of a refrigerator door through long holes arranged on the horizontal bracket and the door opening connecting rod, on the other hand, an upper pneumatic motor and a lower pneumatic motor which are arranged on the same straight line through matching with the center line of a rotating shaft are arranged, so that the three-line coincidence of the hinge axis of the tested refrigerator, the center line of the rotating shaft of the pneumatic motor and the rotating center line of a door opening connecting device is achieved, thereby realizing the perfect matching of the door opening rotating track of the testing module of the refrigerator and the moving track of a refrigerator door opening and closing, effectively reducing a series of defects caused by track errors in the practical application process, such as abnormal abrasion, motor damage, connecting rod fracture and, the method has the advantages of strong practicability, capability of solving practical problems, approval of laboratories of various refrigerator manufacturers and third-party detection mechanisms, low equipment cost, high reliability and good economic value.
(2) According to the intelligent testing system for the refrigerator durability test, the power required by opening and closing the door can be transmitted through the door opening sucker, the door opening connecting rod and the connecting frame are designed, concentric circular motion with the door is achieved while the door is opened and closed, the set door opening and closing speed, angle and amplitude parameters can be accurately fed back to the door body, and the test error is small.
(3) The fixing and connecting device of the intelligent testing system for the refrigerator durability test comprises a base and a fixed sucker, wherein the fixed sucker is arranged on a fixed sucker connecting rod, the fixed sucker connecting rod can adjust the position on the surface of the base, the refrigerator is translated to a proper position, the fixed sucker can also suck the side wall of the refrigerator, and the fixed sucker connecting rod is locked by a locking device, so that the refrigerator is stably and firmly fixed, the matching performance is good, the fixing is convenient and quick, and the refrigerators with different models and sizes can be well fixed.
(4) The uninterrupted power supply module arranged in the intelligent testing system for the refrigerator durability test can effectively avoid errors possibly caused by commercial power abnormity on the testing system, ensure that the test can be carried out stably, and ensure that the direct current waveform is straight, thereby improving the risk resistance of the system and prolonging the service life of equipment.
(5) The door opening connecting rod in the intelligent testing system for the refrigerator durability test is vertically arranged and can translate on the L-shaped horizontal support, and the door opening sucker can translate up and down on the door opening connecting rod, so that the sucker can be adsorbed at any position on the surface of a refrigerator door, the installation convenience and the adjustment multi-selectivity are greatly improved, and the intelligent testing system can be suitable for the adsorption and fixation of switches of refrigerator doors of various types and sizes.
(6) The intelligent testing system for the refrigerator durability test adopts the elastic arrangement of the door opening sucker and the base, and the refrigerator door has a self-absorption function, so that the force is high at the moment of opening the door, and in the long-term test process, if the door opening sucker is directly and rigidly connected with the base, the door opening sucker and the door closing sucker can be greatly impacted at the moment of opening the door and closing the door, on one hand, the sucker can be easily dropped, on the other hand, the abnormal damage to the door body in the test can be caused, the effect of simulating manual door opening and closing can not be achieved, and the elastic arrangement effectively solves the problem.
(7) According to the intelligent testing system for the refrigerator durability test, the arranged control module can control, feed back and adjust the working process of the testing module in real time, the intelligence and the automation of the testing module are effectively improved, the testing module has remote monitoring performance through the arranged communication module and the mobile receiving control terminal, the supervision without places and time difference is realized, and various parameters of the testing module and various parameters in the working environment are effectively and comprehensively monitored through the arranged sensors.
(8) According to the intelligent testing system for the refrigerator durability test, the air pump and the pneumatic motor are used as power devices, on one hand, the pneumatic motor is safe to work, has explosion-proof performance, is not influenced by high temperature and vibration, can work fully and fully for a long time, is small in temperature rise, has high starting torque, can be started in a loading mode, is started in a quick starting mode and stopped in a quick stopping mode, is particularly suitable for occasions with frequent starting, is very easy to reverse, is particularly suitable for test working occasions and situations of opening and closing a door of a refrigerator, is simple in structure, convenient to operate, easy to maintain and low in cost, and effectively improves the working stability and reliability of the testing module.
(9) The intelligent testing system for the refrigerator durability test adopts the vacuum sucker, on one hand, the vacuum generator directly applies the air pump without adding a vacuum pump, on the other hand, the adsorption force of the sucker is greatly improved, the dropping is prevented, enough door opening stress is provided, the firmness of the testing module is enhanced, meanwhile, the vacuum generator adopted by the intelligent testing system is simple in structure, mutual interference between air flows is reduced through the horizontal arrangement of the vacuum air suction port and the air inlet of the air pump, the phenomena of steady flow and backflow are prevented, and the vacuum degree is better.
(10) According to the intelligent testing system for the refrigerator durability test, provided by the invention, on one hand, enough torque is provided to realize door opening and closing stably and reliably, so that the deformation and damage of equipment caused by insufficient torque and uneven stress caused by a single motor are avoided, and meanwhile, the lower pneumatic motor is embedded into the base, so that the situation that the upper pneumatic motor and the lower pneumatic motor are positioned on the same straight line with the hinged shaft of the refrigerator door is ensured while the tested refrigerator is installed on the base, the door opening and closing track of the refrigerator door is consistent with the motion track of the connecting frame, and the effect of synchronous operation of the refrigerator door and the connecting frame is achieved.
(11) The intelligent testing system for the refrigerator durability test provided by the invention adopts air pressure increase and decrease as a power source of the lifting platform, and is assisted by the telescopic pipe which can stretch or contract along with air pressure change to lift the refrigerator, so that an air pump is fully utilized, the cost is reduced, manual carrying is reduced, the efficiency is improved, the pedal plate is arranged to enable one person to operate the refrigerator up and down, and the intelligent testing system for the refrigerator durability test has the advantages of low cost, low energy consumption, stable lifting and high safety.
(12) According to the intelligent testing system for the refrigerator durability test, the actual opening and closing times of the refrigerator door can be effectively monitored through the arranged laser counter, the working environment of the testing module can be effectively monitored through the arranged video probe, and the working state of the testing system can be fed back to a tester in real time through the display alarm module, so that the intelligent testing system is visual and sensitive.
(13) According to the intelligent testing system for the refrigerator durability test, the moving device is arranged under the base, the intelligent testing system is put down when moving is needed, and is retracted when not needed, so that the intelligent testing system is convenient and quick, meanwhile, the trouble of manual carrying is avoided, and after the moving wheels are retracted, the base is in direct contact with the ground, so that the intelligent testing system is stable and safe.
(14) The intelligent testing system for the refrigerator durability test can realize quick matching of refrigerators of various models, is convenient and quick to install, can automatically and repeatedly open and close the upper door and the lower door of the refrigerator at the same time, and has the advantages of high safety and stability coefficient of equipment, low failure rate, difficulty in damaging the refrigerator, high automation degree, simple structure and low cost.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a schematic structural diagram of an intelligent testing system for refrigerator durability tests according to the present invention;
FIG. 2 is a schematic structural diagram of an uninterrupted power module of the intelligent testing system for refrigerator durability tests according to the present invention;
FIG. 3 is a schematic structural diagram of a testing module of the intelligent testing system for refrigerator durability tests according to the present invention;
FIG. 4 is a schematic view of the connection between a door opening suction cup and a door opening connecting rod of the intelligent testing system for refrigerator durability tests of the present invention;
FIG. 5 is a schematic view of the connection between the fixed sucker connecting rod and the guide rail of the intelligent testing system for refrigerator durability tests of the present invention;
FIG. 6 is a schematic structural diagram of a vacuum generator of the intelligent testing system for refrigerator durability tests according to the present invention;
FIG. 7 is a schematic view of a connection between a door opening connecting rod and an L-shaped horizontal bracket of the intelligent testing system for refrigerator durability tests of the present invention;
FIG. 8 is a schematic structural diagram of a mobile device of an intelligent testing system for refrigerator endurance tests according to the present invention;
FIG. 9 is a schematic structural diagram of a control module of the intelligent testing system for refrigerator endurance tests according to the present invention;
fig. 10 is a schematic structural view of a lifting table of the intelligent testing system for refrigerator durability tests of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1-10, an intelligent testing system for refrigerator durability test comprises a control module 23, a testing module 26 and a non-intermittent power supply module 27;
the control module 23 comprises a processor module 231, a storage module 232, a communication module 233, a mobile receiving control terminal 234 and a data acquisition module 235; the control module 23 is configured to control the working condition of the test module 26 in real time, and set, adjust, and feed back working parameters of the test module 26 as required;
the test module 26 comprises a fixed connecting device for fixing the test refrigerator, a door opening connecting device for connecting a refrigerator door, a power device which is fixed on the fixed connecting device and used for driving the door opening connecting device, and a lifting table for carrying the test refrigerator;
the fixed connecting device comprises a base 1, a plurality of fixed suckers 2, fixed sucker connecting rods 3, two supporting frames 4 and a square frame 5, wherein the fixed suckers 2 are used for being adsorbed on two side walls of the test refrigerator;
the door opening connecting device comprises a plurality of door opening suckers 6 adsorbed on the refrigerator door, a door opening connecting rod 7 used for fixing the door opening suckers, and a connecting frame 8 used for connecting the door opening connecting rod and the fixed connecting device; the connecting frame 8 comprises a plurality of L-shaped horizontal brackets 81 and a framework 82 vertically and fixedly connected to the corners of the plurality of L-shaped horizontal brackets 81, the L-shaped horizontal brackets 81 are provided with long holes 811 with a horizontal extending direction, the door-opening connecting rod 7 is vertically arranged on two adjacent L-shaped horizontal brackets 81 and can adjust the position along the direction of the long holes 811, and in the embodiment, the position is adjusted by adopting a fastening nut 812;
the power device comprises an air pump 9, an upper pneumatic motor 10 and a lower pneumatic motor 11 which are respectively arranged at the opposite corners of the square frame 5 and the base 1, and the lower pneumatic motor 11 is embedded in the base 1 and is flush with the surface of the base 1;
the connecting frame 8 is fixedly connected to the rotating shafts of the upper pneumatic motor 10 and the lower pneumatic motor 11, the central lines of the rotating shafts of the upper pneumatic motor 10 and the lower pneumatic motor 11 are positioned on the same straight line, and the connecting frame 8 is driven to rotate back and forth by the rotation of the upper pneumatic motor and the lower pneumatic motor;
the lifting platform 25 comprises two telescopic pipes 251 fixedly arranged on the front wall of the base 1, a support bracket 251 fixedly arranged at the top ends of the telescopic pipes and perpendicular to the telescopic pipes, and an object stage 253 arranged on the support bracket, wherein the telescopic pipes 251 are respectively connected with an air pump 9 through air pipes with pressure increasing valves and pressure releasing valves.
The uninterruptible power supply module 27 includes a circuit control module 271, a utility power module 272, and a storage battery module 273, and is configured to provide uninterruptible power supply to the control module 23 and the test module 26.
The storage module 232 in this embodiment is configured to store the data acquired by the data acquisition module 235, the data acquired by the laser counter 19 and the video probe 20; the processor module 231 is used for retrieving data in the storage module 232, receiving an instruction signal of the mobile receiving control terminal 234 received by the communication module 233 for data processing, and sending a parameter adjusting signal to the air pump 9 and the air motor, and the communication module 233 transmits the data in the storage module 232 to the mobile receiving control terminal 234 in real time for a tester to read in real time;
the processor module 231 is an FPGA;
the communication module 233 comprises a 3G/4G/5G wireless communication module, a WIFI module, an NFC module, a Bluetooth module and a ZIGBEE communication module, and the various modules can be combined for use;
the data acquisition module 235 comprises sensors arranged on an air pump, a pneumatic motor and a door opening connecting rod and a temperature and humidity sensor arranged on the test module;
the storage module 232 comprises a random access memory module, an SD card module and a USB interface module, wherein the random access memory module is used for being matched with the processor module to increase the speed of memory and data processing, the SD card module is used for storing various acquired data for a long time, and the USB interface module is convenient for exporting copied data;
the mobile receiving control terminal 234 comprises a mobile receiving device and an APP installed on the device; the mobile receiving equipment is a smart phone.
The display module 236 in this embodiment is configured to display the real-time data acquired by the data acquisition module 235 and the door opening times acquired by the laser counter 19;
the alarm module 234 includes a voice alarm module and a light alarm module, and is configured to send out an alarm signal when the collected parameter value exceeds a predetermined threshold.
Embedding including the fixed suction cup connecting rod 3 in this embodiment pierces through the setting on the supporting seat 13 on the guide rail 12 on base 1 both sides, just the fixed suction cup connecting rod 3 can freely stretch out and draw back in the direction of horizontal perpendicular to guide rail 12, still be provided with respectively on the fixed suction cup connecting rod 3 and be used for fixed locking in the direction of guide rail 12 and horizontal perpendicular to guide rail 12 the locking device 14 of fixed suction cup connecting rod 3.
The fixed sucker 2 and the door opening sucker 6 in the embodiment are both vacuum suckers, and the fixed sucker 2 and the door opening sucker 6 are connected into the air pump 9 through a vacuum generator 15 pipe; the vacuum generator comprises an air pump air inlet 151, a vacuum air suction port 152, a low-pressure air chamber 153 and an air outlet 154; the vacuum air suction port 152 is L-shaped, is welded on the side wall of the low-pressure air chamber 153 and is parallel to the air inlet of the air pump 9; the diameter of the air pump inlet 151 connected with the low-pressure air chamber 153 is smaller than that of the other end.
The door opening connecting rod 7 in the embodiment is provided with an upper long hole and a lower long hole, the upper long hole and the lower long hole are both provided with long holes 16 extending along the length direction of the door opening connecting rod 7, the door opening suction cups 6 are both elastically and fixedly arranged on a base 17 arranged on the door opening connecting rod 7, the elastic fixing devices are two symmetrical W-shaped elastic sheets 18, and the base 17 can move up and down along the long holes 16 on the door opening connecting rod 7 and is provided with a locking device.
The square frame 6 in this embodiment is provided with a laser counter 19 for counting the number of door openings and a 360-degree rotatable video probe 20 for monitoring the operation of the test module.
The lower side of the base 1 in this embodiment is fixedly connected with a moving device 21, the moving device includes two supporting plates 211, the top ends of the supporting plates 211 are fixedly connected with the lower end of the base 1, two moving grooves 212 are symmetrically formed in the inner sides of the supporting plates 211, a moving plate 213 is jointly erected in the moving grooves, and the lower side of the moving plate is fixedly connected with a roller 214; two first hinges 215 are symmetrically connected to the upper side of the moving plate 213, threaded rods 217 are rotatably connected to the supporting plate 216 above the moving plate 213, and a worm 218 is fixedly connected between the two threaded rods 217; the threaded rods 217 are sleeved with threaded sliders 219, the threaded sliders 219 are provided with second hinges 220, and the second hinges 220 are connected with the first hinges 215 through rotating rods 221; the worm 218 is engaged with a worm wheel 222 at the upper side, and a rotating shaft is fixedly connected to the worm wheel 222.
The control module 23 in this embodiment is configured to set the control switching frequency, the switching frequency, and the switching angle by adjusting parameters of the pneumatic motor.
The circuit control module 271 in this embodiment includes a commercial power storage battery power supply conversion module, an inverter module, an output rectifying and filtering module, and a charging control module, where the commercial power storage battery power supply conversion module is used for accessing a storage battery to supply power without obstacle when a commercial power fails; the inverter module is used for converting the direct current into alternating current required by other modules; the output rectifying and filtering module reduces alternating current components in pulsating direct current voltage as much as possible, keeps direct current components thereof, reduces output voltage ripple factors, and makes waveforms smoother to obtain direct current with straight waveforms; the charging protection module is connected with the storage battery module and used for protecting the battery and carrying out constant current charging on the battery, so that overcurrent and overvoltage phenomena are avoided, and the service life of the battery is effectively prolonged.
The processor module 231, the storage module 232 and the communication module 233 in this embodiment are integrated on the same circuit board and are mounted on the side surface of the support frame 4 through the protection box 24;
the uninterrupted power supply module 27 is embedded in the side surface of the base and is provided with an air cooling device in a matching way;
the pressure increasing valve and the pressure reducing valve are fixedly arranged on the base 1 and are provided with pedals for controlling the on-off of the pressure increasing valve and the pressure reducing valve.
The working principle of the invention is as follows: the testing system transfers the test refrigerator to the base 1 through the lifting platform 25, the air pump 9 is opened, the fixed sucker connecting rod 3 is adjusted to a proper position, the hinged shaft of the refrigerator door is enabled to be positioned on the same straight line with the upper pneumatic motor 10 and the lower pneumatic motor 11, the fixed sucker 2 is used for sucking the side wall of the refrigerator, the fixed sucker connecting rod 3 is locked, the door opening connecting rod 7 is adjusted to a proper position, the door opening sucker 6 is connected with the refrigerator door in an adsorption mode, the door opening connecting rod 7 is locked, the door opening times, the door opening angle and the door opening frequency are set through the control module 23, the laser counter 19 is opened, the video probe 20 is opened, the pneumatic motor switch button is opened, and the automatic opening and closing.
The intelligent testing system for the refrigerator durability test can control the refrigerator testing process in real time, continuously test the performance of the refrigerator, can be quickly matched with refrigerators of various models, well solves the matching problem of opening and closing tracks of the refrigerator doors, is convenient and quick to install, is simple and easy to carry the refrigerator up and down, can automatically and repeatedly open and close the upper door and the lower door of the refrigerator simultaneously, and is high in safety and stability coefficient, low in failure rate, not easy to damage the refrigerator, high in automation degree, simple in structure and low in cost.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. An intelligent test system for refrigerator durability tests is characterized by comprising a control module, a test module and a non-intermittent power supply module;
the control module comprises a processor module, a storage module, a communication module, a mobile receiving control terminal, a data acquisition module, a display module and an alarm module; the control module is used for controlling the working condition of the test module in real time and setting, adjusting and feeding back working parameters of the test module according to needs;
the testing module is used for executing a refrigerator durability test according to parameters set by the control module, and comprises a fixed connecting device for fixedly testing the refrigerator, a door opening connecting device for connecting a refrigerator door, a power device which is fixed on the fixed connecting device and used for driving the door opening connecting device, and a lifting table for carrying the tested refrigerator;
the fixed connecting device comprises a base, a plurality of fixed suckers, fixed sucker connecting rods, two supporting frames and a square frame, wherein the fixed suckers are used for being adsorbed on two side walls of the test refrigerator;
the door opening connecting device comprises a plurality of door opening suckers adsorbed on the refrigerator door, a door opening connecting rod used for fixing the door opening suckers, and a connecting frame used for connecting the door opening connecting rod and the fixed connecting device; the connecting frame comprises a plurality of L-shaped horizontal supports and a framework vertically and fixedly connected at the turning points of the L-shaped horizontal supports, the L-shaped horizontal supports are provided with long holes with the extending direction in the horizontal direction, and the door opening connecting rods are vertically arranged on two adjacent L-shaped horizontal supports and can adjust the positions along the long holes;
the power device comprises an air pump, an upper pneumatic motor and a lower pneumatic motor, wherein the upper pneumatic motor and the lower pneumatic motor are respectively arranged at the opposite corners of the square frame and the base, and the lower pneumatic motor is embedded in the base and is flush with the surface of the base;
the connecting frame is fixedly connected to the rotating shafts of the upper pneumatic motor and the lower pneumatic motor, the central lines of the rotating shafts of the upper pneumatic motor and the lower pneumatic motor are positioned on the same straight line, and the connecting frame is driven to rotate back and forth through the rotation of the upper pneumatic motor and the lower pneumatic motor;
the lifting platform comprises two telescopic pipes fixedly arranged on the front wall of the base, a support bracket fixedly arranged at the top end of each telescopic pipe and perpendicular to the telescopic pipes, and an object stage arranged on the support bracket, wherein the telescopic pipes are respectively connected with an air pump through air pipes with pressure increasing valves and pressure releasing valves;
the uninterrupted power supply module comprises a circuit control module, a commercial power module and a storage battery module and is used for providing uninterrupted power supply for the control module and the test module.
2. The intelligent refrigerator durability test testing system of claim 1, wherein the storage module is used for storing the data collected by the data collection module; the processor module is used for calling data in the storage module, receiving an instruction signal of the mobile receiving control terminal received by the communication module and performing data processing, and sending a parameter adjusting signal to the air pump and the air motor, and the communication module transmits the data in the storage module to the mobile receiving control terminal in real time so as to be called and read by a tester in real time;
the processor module is one of an FPGA, a DSP and a singlechip;
the communication module comprises a 3G/4G/5G wireless communication module, a WIFI module, an NFC module, a Bluetooth module and a ZIGBEE communication module, and the various modules can be combined for use;
the data acquisition module comprises sensors arranged on the air pump, the pneumatic motor and the door opening connecting rod and a temperature and humidity sensor arranged on the test module;
the storage module comprises a random access memory module, an SD card module and a USB interface module, wherein the random access memory module is used for being matched with the processor module to increase the speed of memory and data processing, the SD card module is used for storing various acquired data for a long time, and the USB interface module is convenient for exporting copied data;
the mobile receiving control terminal comprises mobile receiving equipment and an APP installed on the mobile receiving equipment; the mobile receiving equipment is one of an intelligent bracelet, an intelligent mobile phone and a tablet computer;
the display module is used for displaying the real-time data acquired by the data acquisition module;
the alarm module comprises a voice alarm module and a light alarm module and is used for sending out an alarm signal when the collection parameter value exceeds a preset threshold value.
3. The intelligent testing system for refrigerator durability tests as claimed in claim 1, wherein the fixed sucker connecting rod penetrates a support seat provided on a guide rail embedded in two sides of the base, and the fixed sucker connecting rod can freely extend and retract along a direction horizontally perpendicular to the guide rail, and the fixed sucker connecting rod is further provided with a locking device for fixedly locking the fixed sucker connecting rod on the guide rail and horizontally perpendicular to the guide rail, respectively.
4. The intelligent refrigerator durability test testing system of claim 1, wherein the fixed sucker and the door-opening sucker are both vacuum suckers, and are connected to the air pump through vacuum generator tubes; the vacuum generator comprises an air inlet of the air pump, a vacuum air suction port, a low-pressure air chamber and an air outlet; the vacuum air suction port is L-shaped, is welded on the side wall of the low-pressure air chamber and is parallel to the air inlet of the air pump; the diameter of one end of the air inlet of the air pump, which is connected with the low-pressure air chamber, is smaller than that of the other end of the air inlet of the air pump.
5. The intelligent refrigerator durability test system of claim 1, wherein the door opening link is two, an upper one and a lower one, and each has a slot extending along a length direction of the door opening link, the door opening suction cups are elastically fixed to a base mounted on the door opening link, and the base can move up and down along the slots of the door opening link and is provided with a locking device.
6. The intelligent refrigerator durability test testing system as claimed in claim 1, wherein a laser counter for counting the number of door openings and a 360-degree rotatable video probe for monitoring the working condition of the testing module are arranged on the square frame.
7. The intelligent refrigerator durability test testing system according to claim 1, wherein a moving device is fixedly connected to the lower side of the base, the moving device comprises two support plates, the top ends of the support plates are fixedly connected with the lower end of the base, two moving grooves are symmetrically formed in the inner sides of the support plates, a moving plate is jointly erected in the moving grooves, and rollers are fixedly connected to the lower sides of the moving plates; the upper side of the movable plate is symmetrically connected with two first hinges, the supporting plates above the movable plate are rotatably connected with threaded rods, and a worm is fixedly connected between the two threaded rods; the threaded rods are sleeved with threaded sliding blocks, the threaded sliding blocks are provided with second hinges, and the second hinges are connected with the first hinges through rotating rods; the worm is meshed with a worm wheel on the upper side, and a rotating shaft is fixedly connected to the worm wheel.
8. The intelligent refrigerator durability test testing system of claim 1, wherein the control module can set and control the switching frequency, the switching times and the switching angle by adjusting parameters of the pneumatic motor.
9. The intelligent refrigerator durability test testing system of claim 1, wherein the circuit control module comprises a mains storage battery power supply conversion module, an inverter module, an output rectifying and filtering module and a charging control module, wherein the mains storage battery power supply conversion module is used for being connected to a storage battery for supplying power without obstacles when a mains supply fails; the inverter module is used for converting the direct current into alternating current required by other modules; the output rectifying and filtering module is used for reducing alternating current components in pulsating direct current voltage, reserving the direct current components, reducing the ripple factor of the output voltage, smoothing the waveform and obtaining direct current with a flat waveform; the charging protection module is connected with the storage battery module and used for protecting the battery and carrying out constant current charging on the battery, so that overcurrent and overvoltage phenomena are avoided, and the service life of the battery is effectively prolonged.
10. The intelligent refrigerator durability test testing system of claim 1, wherein the processor module, the storage module and the communication module are integrated on the same circuit board and are mounted on the side surface of the support frame through a protective box;
the uninterrupted power supply module is embedded in the side surface of the base and is provided with an air cooling device in a matching way;
the pressure increasing valve and the pressure reducing valve are fixedly arranged on the base, and a pedal plate for controlling the on-off of the pressure increasing valve and the pressure reducing valve is arranged on the base.
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