CN115942716B - LED double-sided education machine backlight external member low temperature performance detection device - Google Patents
LED double-sided education machine backlight external member low temperature performance detection device Download PDFInfo
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- CN115942716B CN115942716B CN202310023738.9A CN202310023738A CN115942716B CN 115942716 B CN115942716 B CN 115942716B CN 202310023738 A CN202310023738 A CN 202310023738A CN 115942716 B CN115942716 B CN 115942716B
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- 238000001514 detection method Methods 0.000 title claims abstract description 24
- 238000001816 cooling Methods 0.000 claims abstract description 66
- 238000010438 heat treatment Methods 0.000 claims abstract description 44
- 238000005057 refrigeration Methods 0.000 claims abstract description 40
- 238000006073 displacement reaction Methods 0.000 claims abstract description 29
- 238000004321 preservation Methods 0.000 claims description 24
- 230000000712 assembly Effects 0.000 claims description 7
- 238000000429 assembly Methods 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
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Abstract
The invention discloses a low-temperature performance detection device for a backlight sleeve of an LED double-sided educational machine, which belongs to the technical field of electronic product detection and comprises a cooling compartment and a plurality of groups of refrigerating components which are uniformly and alternately arranged in the cooling compartment along the vertical direction, wherein a clamping component for clamping the backlight sleeve is arranged in the cooling compartment; the bottom of cooling compartment is provided with the heating element that is used for being shaded the external member heating, and the top of cooling compartment is provided with vertical displacement drive arrangement, and vertical displacement drive arrangement's output is connected to clamping assembly, and vertical displacement drive arrangement can drive clamping assembly along vertical displacement in order to pass through multiunit refrigeration subassembly, and clamping assembly can drive the external member in a poor light simultaneously and keep away from each other or be close to for heating element. The device provided by the invention is convenient to detect, and meanwhile, the ambient temperature of the backlight sleeve can be changed mildly, so that the influence on the detection result caused by the problems is avoided, and the detection efficiency of the device can be effectively improved.
Description
Technical Field
The invention belongs to the technical field of electronic product detection, and particularly relates to a low-temperature performance detection device for a backlight sleeve of an LED double-sided education machine.
Background
Along with the development of economy, society enters an informatization age, and in modern education, an LED double-sided education machine plays a role in lifting weight, the updating speed of the LED double-sided education machine is high, the quality is improved continuously, and because the manufacturing level is higher and higher, when the LED double-sided education machine is manufactured, the LED double-sided education machine backlight suite needs to be subjected to low-temperature performance detection. The existing low-temperature performance detection mode of the backlight assembly is usually to heat the backlight assembly to the working temperature, then directly place the backlight assembly into a low-temperature detection compartment for detection, and the mode is easy to cause the problems of surface cracking and the like of the backlight assembly due to the rapid change of the ambient temperature, so that the detection result is influenced.
Disclosure of Invention
Therefore, the invention aims to provide the low-temperature performance detection device for the backlight sleeve of the LED double-sided education machine, which is convenient to detect, can change the ambient temperature of the backlight sleeve gently, avoids the influence on the detection result caused by the problems, and can effectively improve the detection efficiency of the device.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the invention discloses a low-temperature performance detection device for a backlight assembly of an LED double-sided educational machine, which comprises a cooling compartment and a plurality of groups of refrigeration assemblies which are vertically and uniformly arranged in the cooling compartment at intervals, wherein the plurality of groups of refrigeration assemblies simultaneously refrigerate the inner cavity of the cooling compartment, a single group of refrigeration assemblies can independently refrigerate the backlight assembly positioned in the plane, and a clamping assembly used for clamping the backlight assembly is arranged in the cooling compartment; the bottom of cooling compartment is provided with the heating element that is used for being in a poor light external member to heat, the top of cooling compartment is provided with vertical displacement drive arrangement, vertical displacement drive arrangement's output is connected to clamping assembly, vertical displacement drive arrangement can drive clamping assembly along vertical displacement in order to pass through the multiunit cooling module, simultaneously clamping assembly can drive the external member in a poor light for heating element keeps away from each other or is close to.
The invention has the beneficial effects that:
according to the invention, the heating assembly is arranged to heat the backlight sleeve, so that the backlight sleeve meets the working temperature in the test, the clamping assembly can drive the backlight sleeve to be far away from or close to the heating assembly, and the gradient change of the temperature is realized in a way of baking and cooling at the same time, so that the ambient temperature of the backlight sleeve is changed mildly, the influence of abrupt change of the temperature on the detection result is avoided, and the detection efficiency of the device can be effectively improved.
In the device, the plurality of groups of refrigerating components are arranged, the plurality of groups of refrigerating components refrigerate the inner cavity of the cooling compartment simultaneously, and when the backlight assembly moves to a preset height, the backlight assembly positioned in the plane can be independently refrigerated through the single group of refrigerating components, so that the cooling compartment is not required to be refrigerated integrally, the refrigerating time is greatly shortened, the rapid and accurate control of the temperature can be realized, and the detection efficiency can be further improved.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objects and other advantages of the invention may be realized and obtained by means of the instrumentalities and combinations particularly pointed out in the specification.
Drawings
In order to make the objects, technical solutions and advantageous effects of the present invention more clear, the present invention provides the following drawings for description:
FIG. 1 is a schematic diagram of the structure of the device of the present invention;
FIG. 2 is an enlarged view of FIG. 1 at A;
FIG. 3 is a schematic view of a 4 refrigeration assembly combination;
FIG. 4 is a schematic diagram of a refrigeration assembly;
FIG. 5 is a schematic view of a heating assembly;
FIG. 6 is an enlarged view of FIG. 5 at B;
fig. 7 is a schematic view of the structure of the insulation case in an opened state.
The figures are marked as follows: the cooling compartment 1, the refrigeration assembly 2, the clamping assembly 3, the heating assembly 4, the vertical displacement driving device 5, the outer layer box 6, the inner layer box 7, the pre-cooling cavity 8, the air cooler 9, the refrigeration pipe 10, the hose 11, the cold air hole 12, the telescopic device 13, the sliding block 14, the sliding groove 15, the air jet head 16, the corrugated pipe 17, the through hole 18, the support plate 19, the linear displacement motor 20, the rack 21, the gear 22, the rotating motor 23, the heating table 24, the groove 25, the cable 26, the power supply 27, the heat insulation shell 28, the elastic reset device 29, the boss 30, the bar hole 31, the inner rod 32, the outer rod 33 and the elastic support device 34.
Detailed Description
As shown in figures 1-7, the low-temperature performance detection device for the backlight suite of the LED double-sided education machine comprises a cooling compartment 1 and a plurality of groups of refrigerating assemblies 2 which are uniformly and alternately arranged in the cooling compartment 1 along the vertical direction, wherein the cooling compartment 1 is hermetically arranged, the cooling compartment 1 is in a square shape, and the area of the cooling compartment 1 is 0.5m 2 ～5m 2 Each group of refrigeration components 2 are arranged in the same plane, and the plurality of groups of refrigeration components 2 are arranged on the inner wall of the cooling compartment 1 according to a vertical arrangement mode, so that the plurality of groups of refrigeration components 2 can refrigerate the inner cavity of the cooling compartment 1 at the same time, and when the backlight assembly moves to a corresponding position along the vertical direction, of course, the single group of refrigeration components 2 can be used for backlight assemblies positioned in the planeThe pieces are cooled separately.
Specifically, a clamping component 3 for clamping the backlight assembly is arranged in the cooling compartment 1, the clamping component 3 is only required to be a traditional triangular clamping jaw mechanical arm, and the clamping component is clamped from the outer side of the backlight assembly; the bottom of cooling box 1 is provided with the heating element 4 that is used for being shaded the external member heating, and heating element 4 can carry out the heat radiation heating to it to the lower surface of external member in a poor light, and the top of cooling box 1 is provided with vertical displacement drive arrangement 5, and vertical displacement drive arrangement 5 adopts linear stepping motor or pneumatic cylinder, can drive output linear displacement can. The output of vertical displacement drive arrangement 5 is connected to clamping component 3, and vertical displacement drive arrangement 5 can drive clamping component 3 along vertical displacement in order to pass through multiunit refrigeration subassembly 2, reaches the refrigeration subassembly 2 of place layer, and refrigeration subassembly 2 of this layer can be convenient for heat it alone, and clamping component 3 can drive the external member in a poor light for heating component 4 is kept away from each other or is close to simultaneously to adjust the distance of heat radiation. According to the invention, the gradient change of the temperature is realized by baking and cooling simultaneously and by changing the baking distance, so that the ambient temperature of the backlight sleeve is changed gently, the influence of abrupt change of the temperature on the detection result is avoided, and the detection efficiency of the device can be effectively improved.
In this embodiment, the cooling compartment 1 includes an outer layer box 6 and an inner layer box 7, the inner layer box 7 is formed by biasing the outer layer box 6 inward for a certain distance, the specific shape is identical to that of the outer layer box 6, only the difference in size is provided, the refrigeration component 2, the clamping component 3 and the heating component 4 are all arranged in the inner layer box 7, the two are connected through a top plate or a bottom plate, a pre-cooling cavity 8 is formed between the outer layer box 6 and the inner layer box 7 at intervals, the pre-cooling cavity 8 is communicated with the refrigeration component 2, of course, a rib plate can be arranged in the pre-cooling cavity 8 to realize the reinforcement performance of the connection between the inner layer box 7 and the outer layer box 6, an air cooler 9 is fixed on the outer side of the outer layer box 6, and the air cooler 9 is communicated with the pre-cooling cavity 8; through setting up precooling cavity 8 can precool the cooling box, when making its cooling more fast, can let the refrigeration subassembly 2 in the cooling box refrigerate through precooling cavity 8 is whole, can let the temperature of each group refrigeration subassembly 2 more balanced, guarantee that the device can refrigerate steadily, continuously.
In this embodiment, the refrigeration assembly 2 includes four refrigeration pipes 10 arranged in a rectangular shape, the four refrigeration pipes 10 are respectively parallel to four inner side walls of the inner layer box 7, the rectangle is not a completely regular rectangle, and the specific arrangement mode is as shown in the figure, one end of the refrigeration pipe 10 abuts against the middle of the adjacent another refrigeration pipe 10, and the other end of the refrigeration pipe 10 is communicated with the pre-cooling cavity 8 through a hose 11, so that by moving the refrigeration pipe 10, the four refrigeration pipes 10 can be surrounded into a rectangular frame with variable size, and the backlight assembly can pass through the rectangular frame. The side of the refrigeration tube 10, which is away from the cooling compartment 1, is provided with a cold air hole 12 for emitting cold air transferred from the pre-cooling cavity 8, one side of the refrigeration tube 10, which faces the cooling compartment 1, is connected with a slide block 14 through a telescopic device 13, the slide block 14 is perpendicular to the axial direction of the telescopic device 13, the slide block 14 and the refrigeration tube 10 are in the same plane, the extending directions of the slide block 14 and the refrigeration tube 10 are the same, the slide block 14 is slidingly arranged in a chute 15 fixed on the inner wall of the cooling compartment 1, the slide slot 15 is used for limiting, the inner wall of the cooling compartment 1 is simultaneously provided with a horizontal displacement driving device for driving the slide block 14 to displace along the chute 15, and the horizontal displacement driving device can drive the slide block 14 to displace in the chute 15, so that the position of the slide block 14 is changed; the distance between the refrigerating tube 10 and the inner layer box 7 can be changed through the telescopic device 13, the telescopic device 13 is matched with the sliding block 14, and the positions of the refrigerating tubes 10 can be changed simultaneously, so that the plane positions of the four refrigerating tubes 10 in the same plane are changed, the size of the rectangular frame can be adjusted, when the backlight sleeve is positioned in the rectangular frame, the size of the rectangular frame is related to the distance between the backlight sleeve, namely, the distance between the cold air holes 12 on the rectangular frame and the backlight sleeve can be changed, and the refrigerating speed can be adjusted.
For example, when the backlight assembly is moved vertically to the corresponding position in the same group of the cooling assemblies 2, the position of the cold air holes 12 on the cooling tube 10 is proved to be close to the position of the backlight assembly when the rectangular frame is reduced, and at this time, the backlight assembly can be cooled more rapidly. On the contrary, when the size of the rectangular frame becomes larger, the position of the cold air hole 12 on the refrigeration tube 10 is far away from the position of the backlight sleeve, and at this time, the refrigeration efficiency of the backlight sleeve is reduced, so that the refrigeration influence of the layer of refrigeration assembly 2 on the backlight sleeve can be reduced, and the actual requirement is met.
In this embodiment, the edge of the air hole 12 is connected with the air jet head 16 through the bellows 17 in a sealing manner, the cold air in the pre-cooling cavity 8 enters the refrigerating tube 10 through the hose 11, then the cold air in the refrigerating tube 10 enters the air jet head 16 through the bellows 17, a plurality of through holes 18 are formed in the end face of the air jet head 16, the cold air is discharged through the through holes 18, the through holes 18 are communicated with the refrigerating tube 10, a support plate 19 is connected to the output end of the linear displacement motor 20 in a fixed manner, the linear displacement motor 20 is fixed on the outer side of the refrigerating tube 10, the linear displacement motor 20 can drive the support plate 19, so that the air jet head 16 is driven to stretch and retract, fine adjustment of the position of a nozzle is achieved, and the relative position of the air jet head 16 and a backlight sleeve member can be further adjusted, so as to meet the actual refrigerating requirement.
For example, when it is desired to reduce the size of the rectangular frame, the distal end, i.e., the jet head 16 at the end remote from the telescoping device 13, is retracted to prevent interference between adjacent refrigerant tubes 10. At the same time, the remaining jet heads 16 may extend outwardly so that they may more closely approximate the backlight assembly, achieving a faster refrigeration effect.
In this embodiment, the horizontal displacement driving device includes a rack 21, a gear 22 and a rotating motor 23, the rack 21 extends along the length direction of the slide block 14, the gear 22 is meshed with the rack 21, the rotating motor 23 is fixed on the inner wall of the cooling compartment 1 and drives the gear 22 to rotate, and the slide block 14 is driven to move by means of the rotating motor 23 and the gear 22 and the rack 21, so that the position of the slide block 14 can be conveniently controlled.
In this embodiment, heating element 4 includes heating table 24, and a plurality of convex recess 25 have been seted up to the upper surface of heating table 24 is concentric, installs the resistance wire in the recess 25, and the resistance wire passes through cable 26 to be connected to power 27, and when the resistance wire was heated, can heat the external member in a poor light of top, and the resistance wire is hidden in recess 25, avoids clamping assembly 3 or the external member in a poor light to cause friction or interference's influence to it.
In this embodiment, be provided with a plurality of sectorial heat preservation shells 28 on the heating platform 24, a plurality of heat preservation shells 28 are the circumference and arrange the annular heating chamber that forms and be used for the external member heating in a poor light, the outside bottom of heat preservation shells 28 is articulated with heating platform 24, be provided with elasticity resetting means 29 simultaneously between heat preservation shells 28 and the heating platform 24, elasticity resetting means 29 is used for keeping heat preservation shells 28 in the open state, elasticity resetting means 29 adopts reset torsion spring, its cover is established outside the articulated shaft between heat preservation shells 28 and heating platform 24, when clamping assembly 3 drove the external member in a poor light and offset with the middle part of heat preservation shells 28, the external member in a poor light can drive the heat preservation shells 28 rotation and make it be in the closed state, through setting up heat preservation shells 28, when the external member in a poor light is in with the heating platform 24 adjacent, then can close heat preservation shells 28, can heat it better at this moment, reduce external refrigeration assembly 2 and cause the influence to the external member in a poor light. When the backlight assembly moves upwards, the heat preservation shell 28 is automatically opened under the action of the elastic reset device 29, and the bottom of the backlight assembly can be heated normally.
In this embodiment, the middle part of heat preservation shell 28 is provided with boss 30, and boss 30 protrusion is in the bottom surface of heat preservation shell 28, has offered a plurality of bar holes 31 simultaneously on the bottom surface of heat preservation shell 28 for through setting up boss 30 for accept the pressure of external member in a poor light, can let boss 30 and its contact better, be convenient for the closing of heat preservation shell 28.
In this embodiment, the bottom of the heating table 24 is fixed with an inner rod 32, the inner rod 32 is slidably disposed in one end of an outer rod 33, the other end of the outer rod 33 is fixed at the bottom of the cooling compartment 1, an elastic supporting device 34 is disposed between the heating table 24 and the cooling compartment 1, and the heating table 24 can be elastically supported by the elastic supporting device 34, so as to avoid damage caused by direct hard contact between the heating table 24 and the backlight assembly.
Finally, it is noted that the above-mentioned preferred embodiments are only intended to illustrate rather than limit the invention, and that, although the invention has been described in detail by means of the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the invention as defined by the appended claims.
Claims (7)
1. The utility model provides a LED double-sided education machine external member low temperature performance detection device that is shaded which characterized in that: the cooling box comprises a cooling box body and a plurality of groups of refrigerating components which are uniformly arranged in the cooling box body at intervals along the vertical direction, wherein the plurality of groups of refrigerating components simultaneously refrigerate the inner cavity of the cooling box body, a single group of refrigerating components can independently refrigerate a backlight component positioned in the plane of the single group of refrigerating components, and a clamping component used for clamping the backlight suite is arranged in the cooling box body; the bottom of the cooling compartment is provided with a heating assembly for heating the backlight assembly, the top of the cooling compartment is provided with a vertical displacement driving device, the output end of the vertical displacement driving device is connected to the clamping assembly, the vertical displacement driving device can drive the clamping assembly to vertically displace to pass through a plurality of groups of refrigeration assemblies, and meanwhile, the clamping assembly can drive the backlight assembly to be far away from or close to each other relative to the heating assembly; the cooling compartment comprises an outer layer box body and an inner layer box body, the refrigerating assembly, the clamping assembly and the heating assembly are all arranged in the inner layer box body, a pre-cooling cavity is formed between the outer layer box body and the inner layer box body at intervals, an air cooler is fixed on the outer side of the outer layer box body, and the air cooler is communicated with the pre-cooling cavity; the refrigerating assembly comprises four refrigerating pipes which are arranged in a rectangular mode, one ends of the refrigerating pipes are propped against the middle of the other adjacent refrigerating pipes, the other ends of the refrigerating pipes are communicated with the pre-cooling cavity through hoses, a cold air hole is formed in one side, away from the cooling compartment, of each refrigerating pipe, one side, facing the cooling compartment, of each refrigerating pipe is connected with a sliding block through a telescopic device, the sliding blocks are arranged in sliding grooves fixed on the inner walls of the cooling compartment in a sliding mode, and the inner walls of the cooling compartment are simultaneously provided with a horizontal displacement driving device for driving the sliding blocks to displace along the sliding grooves.
2. The device for detecting the low-temperature performance of the backlight assembly of the LED double-sided education machine according to claim 1, wherein: the edge of cold gas pocket has the jet head through bellows sealing connection, a plurality of through-holes have been seted up on the terminal surface of jet head, the through-hole with the refrigeration pipe intercommunication, the outside of jet head is connected with the extension board, extension board fixedly connected to linear displacement motor's output, linear displacement motor fixes the outside of refrigeration pipe.
3. The device for detecting the low-temperature performance of the backlight assembly of the LED double-sided education machine according to claim 1, wherein: the horizontal displacement driving device comprises a rack, a gear and a rotating motor, wherein the rack extends along the length direction of the sliding block, the gear is meshed with the rack, and the rotating motor is fixed on the inner wall of the cooling compartment and drives the gear to rotate.
4. A device for detecting the low-temperature performance of a backlight assembly of an LED double-sided educational machine according to any one of claims 1-3, wherein: the heating assembly comprises a heating table, a plurality of circular arc-shaped grooves are concentrically formed in the upper surface of the heating table, and resistance wires are installed in the grooves and connected to a power supply through cables.
5. The device for detecting the low-temperature performance of the backlight assembly of the LED double-sided education machine as set forth in claim 4, wherein: the heating bench is annularly provided with a plurality of sectorial heat preservation shells, and a plurality of heat preservation shells are the circumference and arrange the annular heating chamber that forms and be used for the external member heating in a poor light, the outside bottom of heat preservation shell is articulated with the heating bench, be provided with elasticity resetting means simultaneously between heat preservation shell and the heating bench, elasticity resetting means is used for keeping the heat preservation shell in open condition, and when clamping assembly drove the external member in a poor light and offset with the middle part of heat preservation shell, the external member in a poor light can drive the heat preservation shell rotation and make it be in closed condition.
6. The device for detecting the low-temperature performance of the backlight assembly of the LED double-sided education machine according to claim 5, wherein: the middle part of heat preservation shell is provided with the boss, the boss protrusion has offered a plurality of bar holes simultaneously in the bottom surface of heat preservation shell.
7. The device for detecting the low-temperature performance of the backlight assembly of the LED double-sided education machine as set forth in claim 4, wherein: the bottom of heating platform is fixed with interior pole, interior pole slides and sets up in the one end of outer pole, the other end of outer pole is fixed in the bottom of cooling compartment, be provided with elastic support device between heating platform and the cooling compartment.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310023738.9A CN115942716B (en) | 2023-01-09 | 2023-01-09 | LED double-sided education machine backlight external member low temperature performance detection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310023738.9A CN115942716B (en) | 2023-01-09 | 2023-01-09 | LED double-sided education machine backlight external member low temperature performance detection device |
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| CN115942716A CN115942716A (en) | 2023-04-07 |
| CN115942716B true CN115942716B (en) | 2023-11-03 |
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| CN115942716A (en) | 2023-04-07 |
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