CN108398351B - High-low temperature testing device for lamp - Google Patents
High-low temperature testing device for lamp Download PDFInfo
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- CN108398351B CN108398351B CN201810166329.3A CN201810166329A CN108398351B CN 108398351 B CN108398351 B CN 108398351B CN 201810166329 A CN201810166329 A CN 201810166329A CN 108398351 B CN108398351 B CN 108398351B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/60—Investigating resistance of materials, e.g. refractory materials, to rapid heat changes
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Abstract
The invention discloses a high and low temperature testing device for lamps, which comprises: the device comprises an insulation can, an intermediate partition board for dividing the space in the insulation can into a first cavity and a second cavity, a lamp mounting seat for mounting a lamp, a high-temperature steam engine for generating high-temperature steam, a liquid nitrogen tank for storing low-temperature nitrogen, a high-temperature air guide pipe, a low-temperature air guide pipe, a high-temperature air extractor for extracting gas in the first cavity, a low-temperature air extractor for extracting gas in the second cavity, a movable sealing door, a rack, a gear, a servo motor, a first pushing device for pushing the lamp mounting seat to move from the first cavity to the second cavity and a second pushing device for pushing the lamp mounting seat to move from the second cavity to the first cavity; the high-temperature air duct is communicated with the high-temperature steam engine and the first cavity; the low-temperature gas guide pipe is communicated with the liquid nitrogen tank and the second cavity; the high-temperature air pump is communicated to the first cavity; the low-temperature air pump is communicated to the second cavity. The invention has the advantages that: the lamp can be simulated to be switched under the working environment of high temperature and low temperature.
Description
Technical Field
The invention relates to a high and low temperature testing device for a lamp.
Background
The climate is clear in China all the year round. When the outdoor lighting lamp enters a severe cold winter, the manufacturing material of the outdoor lighting lamp is influenced by low temperature, and the texture becomes hard and is easy to break; in hot summer, the outdoor lighting lamp is affected by high temperature, and some manufacturing materials are deformed by heat and have low hardness. Especially, the lighting fixtures used on moving objects are easily damaged when a high temperature environment enters a low temperature environment or when a low temperature environment enters a high temperature environment.
The stability of the lamp in use in high and low temperature environments should be checked before the lamp is shipped.
Disclosure of Invention
In order to solve the defects of the prior art, the invention aims to provide a lamp high-low temperature testing device for simulating the switching of lamps at different temperatures.
In order to achieve the above object, the present invention adopts the following technical solutions:
a high and low temperature testing device for lamps comprises: the device comprises an insulation can, an intermediate partition board for dividing the space in the insulation can into a first cavity and a second cavity, a lamp mounting seat for mounting a lamp, a high-temperature steam engine for generating high-temperature steam, a liquid nitrogen tank for storing low-temperature nitrogen, a high-temperature air guide pipe, a low-temperature air guide pipe, a high-temperature air extractor for extracting gas in the first cavity, a low-temperature air extractor for extracting gas in the second cavity, a movable sealing door, a rack, a gear, a servo motor, a first pushing device for pushing the lamp mounting seat to move from the first cavity to the second cavity and a second pushing device for pushing the lamp mounting seat to move from the second cavity to the first cavity; the lamp mounting seat slides in the heat preservation box; the high-temperature air duct is communicated with the high-temperature steam engine and the first cavity; the low-temperature gas guide pipe is communicated with the liquid nitrogen tank and the second cavity; the high-temperature air pump is communicated to the first cavity; the low-temperature air pump is communicated to the second cavity; a channel for the lamp mounting seat to pass through is formed between the middle partition plate and the wall of the heat preservation box; the movable sealing door moves between a closing position for closing the passage and an opening position for opening the passage; the rack is fixed to the movable sealing door; the gear is meshed with the rack; the servo motor drives the gear to rotate; the first urging means includes: the first ejection device and the first cylinder are used for driving the first ejection device to move relative to the heat insulation box; the first ejection device includes: the first spring, the first guide rod, the first push plate, the first bottom plate and the first electromagnet; the first bottom plate is connected to the first air cylinder and driven by the first air cylinder to move; the first electromagnet is fixed to the first bottom plate to apply attraction force to the first push plate; the first push plate is fixed to the first guide rod; the first guide rod is connected to the first bottom plate in a sliding mode; the first spring is sleeved on the periphery of the first guide rod; the first spring applies acting force to the first push plate to enable the first push plate to be far away from the first bottom plate; the second urging means includes: the second ejection device and a second cylinder for driving the second ejection device to move relative to the heat insulation box; the second ejection device includes: the second spring, the second guide rod, the second push plate, the second bottom plate and the second electromagnet; the second bottom plate is connected to a second air cylinder and driven by the second air cylinder to move; the second electromagnet is fixed to the second bottom plate to apply attraction force to the second push plate; the second push plate is fixed to the second guide rod; the second guide rod is connected to the second bottom plate in a sliding mode; the second spring is sleeved on the periphery of the second guide rod; the second spring applies a force to the second push plate that moves the second push plate away from the second base plate.
Further, the middle partition plate comprises two side plates and an end plate; the end plate is connected with the two side plates;
a vacuum cavity for heat insulation is formed between the two side plates.
Furthermore, an infrared detector for detecting whether the lamp passes through is arranged on one side, facing the movable sealing door, of the middle partition plate.
Further, the infrared detector is fixed to the end plate.
Furthermore, an electric control valve for controlling the discharge of liquid nitrogen is arranged on the low-temperature gas-guide tube.
Further, the lamp high-low temperature testing device further comprises a PLC (programmable logic controller) used for controlling the first pushing device, the second pushing device, the electric control valve, the high-temperature steam engine and the servo motor.
Further, the servo motor drives the gear to rotate through a belt.
Further, the lamp high-low temperature testing device also comprises a first temperature sensor for detecting the temperature in the first cavity; the lamp high-low temperature testing device further comprises a second temperature sensor used for detecting the temperature in the second cavity.
Further, the first push plate is fixed to one end of the first guide bar; two ends of the first spring are respectively contacted with the first push plate and the first bottom plate; the first cylinder includes: a first cylinder and a first cylinder rod that moves relative to the first cylinder; the first base plate is fixed to an end of the first cylinder rod.
Further, the other end of the first guide rod is formed with a stopping part for preventing the first guide rod from separating from the first bottom plate.
The lamp high-low temperature testing device provided by the invention can rapidly switch the lamp between a high-temperature environment and a low-temperature environment.
Drawings
FIG. 1 is a schematic diagram of a high and low temperature testing device for lamps according to the present invention, showing the state of the lamps in a first chamber;
FIG. 2 is another schematic diagram of the high and low temperature testing apparatus for lamps in FIG. 1, showing a state that the first pushing device pushes the lamp mounting base to move from the first cavity to the second cavity along the direction of the arrow;
FIG. 3 is a schematic diagram of a first ejection device of the high and low temperature testing device structure of the lamp in FIG. 2;
FIG. 4 is a schematic view of a second ejection device of the high and low temperature testing device of the lamp in FIG. 2;
fig. 5 is a schematic view of a middle partition plate of the high and low temperature testing device of the lamp in fig. 1.
Detailed Description
The invention is described in detail below with reference to the figures and the embodiments.
As shown in fig. 1 to 5, a high and low temperature testing apparatus 100 for a lamp includes: the device comprises an insulation can 101, a middle partition plate 102 for dividing the space in the insulation can 101 into a first cavity 100a and a second cavity 100b, a lamp mounting seat 103 for mounting a lamp 200, a high-temperature steam engine 104 for generating high-temperature steam, a liquid nitrogen tank 105 for storing low-temperature nitrogen, a high-temperature air duct 106, a low-temperature air duct 107, a high-temperature air extractor 108 for extracting gas in the first cavity 100a, a low-temperature air extractor 109 for extracting gas in the second cavity 100b, a movable sealing door 110, a rack 111, a gear 112, a servo motor 113, a first pushing device 114 for pushing the lamp mounting seat 103 to move from the first cavity 100a to the second cavity 100b and a second pushing device 115 for pushing the lamp mounting seat 103 to move from the second cavity 100b to the first cavity 100 a; the lamp mounting base 103 slides in the heat preservation box 101; the high-temperature gas-guide tube 106 is communicated with the high-temperature steam engine 104 and the first cavity 100 a; the low-temperature gas-guide tube 107 is communicated with the liquid nitrogen tank 105 and the second cavity 100 b; the high temperature air pump 108 is communicated to the first chamber 100 a; the low-temperature air pump 109 is communicated to the second cavity 100 b; a channel 110a for the lamp mounting seat 103 to pass through is formed between the middle partition plate 102 and the wall of the heat preservation box 101; the movable sealing door 110 moves between a closed position closing the passage 110a and an open position opening the passage 110 a; the rack gear 111 is fixed to the movable sealing door 110; the gear 112 is meshed with the rack 111; the servo motor 113 drives the gear 112 to rotate; the first urging means 114 includes: a first ejector 1141 and a first cylinder 1147 for driving the first ejector 1141 to move relative to the insulation box 101; the first ejector 1141 includes: a first spring 1142, a first guide bar 1143, a first push plate 1144, a first bottom plate 1145 and a first electromagnet 1146; the first base plate 1145 is connected to the first cylinder 1147 and driven by the first cylinder 1147 to move; the first electromagnet 1146 is fixed to the first base plate 1145 to apply an attractive force to the first push plate 1144; the first push plate 1144 is fixed to the first guide bar 1143; the first guide bar 1143 is slidably connected to the first base plate 1145; the first spring 1142 is sleeved on the periphery of the first guide rod 1143; the first spring 1142 applies a force to the first push plate 1144 to move the first push plate 1144 away from the first base plate 1145; the second urging means 115 includes: a second ejection device 1151 and a second cylinder 1157 for driving the second ejection device 1151 to move relative to the incubator 101; the second ejection device 1151 includes: a second spring 1152, a second guide bar 1153, a second push plate 1154, a second bottom plate 1155, and a second electromagnet 1156; the second base plate 1155 is connected to a second cylinder 1157 and is driven to move by the second cylinder 1157; the second electromagnet 1156 is fixed to the second base plate 1155 to exert an attractive force on the second push plate 1154; the second push plate 1154 is fixed to the second guide bar 1153; second guide bar 1153 is slidably coupled to second base plate 1155; the second spring 1152 is sleeved on the periphery of the second guide rod 1153; the second spring 1152 applies a force to the second push plate 1154 that urges the second push plate 1154 away from the second base plate 1155.
As a preferred embodiment, the middle partition plate 102 includes two side plates 102a and a partition plate; the partition connects the two side plates 102 a; a vacuum chamber 102c for thermal insulation is formed between the two side plates 102 a.
In a preferred embodiment, the side of the middle partition 102 facing the movable sealing door 110 is provided with an infrared detector for detecting whether the lamp 200 passes through.
As a preferred embodiment, the infrared detector is fixed to the partition.
In a preferred embodiment, the cryogenic gas-guide tube 107 is provided with an electrically controlled valve 107a for controlling the discharge of liquid nitrogen.
In a preferred embodiment, the lamp testing device 100 further includes a PLC programmable controller for controlling the first pushing device 114, the second pushing device 115, the electrically controlled valve 107a, the high temperature steam engine 104 and the servo motor 113.
In a preferred embodiment, the servo motor 113 is rotated by a belt drive gear 112.
As a preferred embodiment, the lamp high and low temperature testing device 100 further includes a first temperature sensor 116 for detecting the temperature in the first chamber 100 a; the lamp hot and cold testing device 100 further comprises a second temperature sensor 117 for detecting the temperature in the second chamber 100 b.
As a preferred embodiment, a first push plate 1144 is fixed to one end of the first guide bar 1143; both ends of the first spring 1142 are respectively in contact with the first push plate 1144 and the first bottom plate 1145; the first cylinder 1147 includes: a first cylinder 1147a and a first cylinder rod 1147b moving relative to the first cylinder 1147 a; first base plate 1145 is fixed to the end of first cylinder rod 1147 b.
In a preferred embodiment, the other end of the first guide bar 1143 is formed with a stopper 1143a for preventing the first guide bar 1143 from being separated from the first base plate 1145.
The first pushing device 114 and the second pushing device 115 are identical in structure. The first cylinder 1147 and the second cylinder 1157 are identical in structure. The first ejector 1141 and the second ejector 1151 have the same structure.
The working principle is as follows: the high temperature steam engine 104 injects high temperature steam into the first chamber 100a of the heat insulation box 101, thereby increasing the temperature of the air in the first chamber 100 a. The liquid nitrogen tank 105 injects low-temperature nitrogen gas into the second chamber 100b of the incubator 101, thereby lowering the temperature inside the second chamber 100 a. Specifically, the temperature of the air in the first chamber 100a is 50 degrees celsius by the high-temperature steam. The temperature in the second chamber 100b is lowered to-20 c by the low temperature nitrogen gas.
The first and second pushing means 114 and 115 push the lamp 200 to reciprocate in the first and second cavities 100a and 100 b. And entering the low-temperature environment again for 10 minutes after the high-temperature environment is used for 10 minutes. The lamp 200 is switched cyclically between the high-temperature environment and the low-temperature environment to detect the quality and the performance of the lamp 200 under the switching of the high-temperature environment and the low-temperature environment.
When the lamp 200 needs to be transferred from the first chamber 100a to the second chamber 100b, the high temperature gas in the first chamber 100a is first pumped out by the high temperature gas pump 108 to prevent the high temperature gas from entering the second chamber 100 b. At this time, the PLC controls the servo motor 113 to start and drive the movable sealing door 110 to open, thereby opening the channel 110a and communicating the first chamber 100a and the second chamber 100 b.
The first cylinder 1147 pushes the first ejector 1141 close to the channel 110 a. When the first cylinder rod 1147b of the first cylinder 1147 moves to the maximum position to the right, the first electromagnet 1146 is turned off, and the attraction force applied to the first push plate 1144 is stopped. The first spring 1142 exerts a force on the first push plate 1144 to push the lamp mount 103 through the channel 110a into the second cavity. If the infrared detection sensor 102d does not detect that the lamp mounting base 103 passes through the channel 110a, the lamp high and low temperature testing device 100 will send out an alarm prompt tone. If the infrared detection sensor 102d detects that the lamp mounting seat 103 passes through the channel 110a, the servo motor 113 drives the movable sealing door 110 to close. The electrically controlled valve 107a is opened and the liquid nitrogen tank 105 injects low temperature nitrogen gas into the second chamber 100b to lower the temperature. The second temperature sensor 117 monitors the temperature in the second chamber 100b in real time. Thereby controlling the amount of low temperature nitrogen gas entering the second chamber 100 n. The first electromagnet 1146 is energized, overcoming the force of the first spring 1152, which moves the first push plate 1144 to the left and locks it in position. The first cylinder 1147 drives the first ejector 1141 to move leftward to return to the initial position.
On the contrary, when the lamp 200 needs to be transferred from the second chamber 100b to the first chamber 100a, the low temperature gas extractor 107 extracts the high temperature gas in the second chamber 100b to prevent the low temperature gas from entering the first chamber 100 a. The servo motor 113 is started to drive the movable sealing door 110 to open, and the channel 110a is opened. The lamp mount 103 enters the first cavity 100a under the action of the second urging means 115.
The first temperature sensor 116 detects the temperature in the first chamber 100 a. The high temperature steam engine 104 is controlled according to the detection result of the first temperature sensor 116, and the temperature in the first chamber 100a is adjusted.
And the PLC controls and adjusts the motion sequence among the components. The first ejector 1141 and the second ejector 1151 apply an impact force to the lamp socket 103 to accelerate, decelerate, and stop the lamp 200. The condition of being impacted by vibration is simulated, and an additional vibration device is not needed to be added.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It should be understood by those skilled in the art that the above embodiments do not limit the present invention in any way, and all technical solutions obtained by using equivalent alternatives or equivalent variations fall within the scope of the present invention.
Claims (5)
1. A high and low temperature testing device for lamps is characterized by comprising: the device comprises an insulation can, an intermediate partition board for dividing the space in the insulation can into a first cavity and a second cavity, a lamp mounting seat for mounting a lamp, a high-temperature steam engine for generating high-temperature steam, a liquid nitrogen tank for storing low-temperature nitrogen, a high-temperature air guide pipe, a low-temperature air guide pipe, a high-temperature air extractor for extracting gas in the first cavity, a low-temperature air extractor for extracting gas in the second cavity, a movable sealing door, a rack, a gear, a servo motor, a first pushing device for pushing the lamp mounting seat to move from the first cavity to the second cavity and a second pushing device for pushing the lamp mounting seat to move from the second cavity to the first cavity; the lamp mounting seat slides in the heat insulation box; the high-temperature gas guide pipe is communicated with the high-temperature steam engine and the first cavity; the low-temperature gas guide pipe is communicated with the liquid nitrogen tank and the second cavity; the high-temperature air pump is communicated to the first cavity; the low-temperature air pump is communicated to the second cavity; a channel for a lamp mounting seat to pass through is formed between the middle partition plate and the wall of the heat insulation box; the movable sealing door moves between a closed position closing the passage and an open position opening the passage; the rack is fixed to the movable sealing door; the gear is meshed with the rack; the servo motor drives the gear to rotate;
the middle partition plate comprises two side plates and a partition plate; the partition plate is connected with the two side plates; a vacuum cavity for heat insulation is formed between the two side plates; an infrared detector for detecting whether a lamp passes through is arranged on one side, facing the movable sealing door, of the middle partition plate; the infrared detector is fixed to the partition; if the infrared detection sensor detects that the lamp mounting seat passes through the channel, the servo motor drives the movable sealing door to close;
the first urging means includes: the first ejection device and the first air cylinder drive the first ejection device to move relative to the heat insulation box; the first ejection device includes: the first spring, the first guide rod, the first push plate, the first bottom plate and the first electromagnet; the first bottom plate is connected to the first air cylinder and driven to move by the first air cylinder; the first electromagnet is fixed to the first bottom plate to apply attraction force to the first push plate; the first push plate is fixed to the first guide rod; the first guide rod is slidably connected to the first base plate; the first spring is sleeved on the periphery of the first guide rod; the first spring applies acting force to the first push plate to enable the first push plate to be far away from the first bottom plate; the second urging means includes: the second ejection device and a second air cylinder are used for driving the second ejection device to move relative to the heat insulation box; the second ejection device includes: the second spring, the second guide rod, the second push plate, the second bottom plate and the second electromagnet; the second bottom plate is connected to the second air cylinder and driven by the second air cylinder to move; the second electromagnet is fixed to the second bottom plate to apply attraction force to the second push plate; the second push plate is fixed to the second guide bar; the second guide rod is connected to the second bottom plate in a sliding mode; the second spring is sleeved on the periphery of the second guide rod; the second spring applies acting force to the second push plate to enable the second push plate to be far away from the second bottom plate;
the first push plate is fixed to one end of the first guide rod; two ends of the first spring are respectively contacted with the first push plate and the first bottom plate; the first cylinder includes: a first cylinder and a first cylinder rod that moves relative to the first cylinder; the first base plate is fixed to an end of the first cylinder rod; the other end of the first guide rod is provided with a stopping part for preventing the first guide rod from separating from the first bottom plate.
2. The lamp high and low temperature testing device of claim 1, wherein:
and an electric control valve for controlling the discharge of liquid nitrogen is arranged on the low-temperature air duct.
3. The lamp high and low temperature testing device according to claim 2, wherein:
the lamp high-low temperature testing device further comprises a PLC (programmable logic controller) for controlling the first pushing device, the second pushing device, the electric control valve, the high-temperature steam engine and the servo motor.
4. The lamp high and low temperature testing device according to claim 1, wherein:
the servo motor drives the gear to rotate through a belt.
5. The lamp high and low temperature testing device according to claim 1, wherein:
the lamp high-low temperature testing device also comprises a first temperature sensor for detecting the temperature in the first cavity; the lamp high-low temperature testing device further comprises a second temperature sensor used for detecting the temperature in the second cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810166329.3A CN108398351B (en) | 2018-02-28 | 2018-02-28 | High-low temperature testing device for lamp |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810166329.3A CN108398351B (en) | 2018-02-28 | 2018-02-28 | High-low temperature testing device for lamp |
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| CN108398351A CN108398351A (en) | 2018-08-14 |
| CN108398351B true CN108398351B (en) | 2021-04-30 |
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| CN201810166329.3A Active CN108398351B (en) | 2018-02-28 | 2018-02-28 | High-low temperature testing device for lamp |
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| DE19601788C1 (en) * | 1996-01-19 | 1997-07-24 | Geesthacht Gkss Forschung | Contactless measurement device for high-temperature fracture parameters |
| CN203587461U (en) * | 2013-10-29 | 2014-05-07 | 宁波市鸿博机械制造有限公司 | Fuel oil pump core temperature shock test chamber with pushing mechanisms |
| CN206192630U (en) * | 2016-11-17 | 2017-05-24 | 杭州亿塔检测技术有限公司 | A heat -resisting test device of bulb for lamps and lanterns heat resistance detects |
| CN206604511U (en) * | 2017-02-14 | 2017-11-03 | 东莞市欧可检测仪器有限公司 | A kind of low temperature impact test box |
| CN107349974A (en) * | 2017-09-01 | 2017-11-17 | 合肥风生水起信息科技有限公司 | A kind of low temperature impact test box |
| CN206818228U (en) * | 2017-06-27 | 2017-12-29 | 广州大冷王测控设备有限公司 | A kind of low temperature impact test box nigration frame |
-
2018
- 2018-02-28 CN CN201810166329.3A patent/CN108398351B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19601788C1 (en) * | 1996-01-19 | 1997-07-24 | Geesthacht Gkss Forschung | Contactless measurement device for high-temperature fracture parameters |
| CN203587461U (en) * | 2013-10-29 | 2014-05-07 | 宁波市鸿博机械制造有限公司 | Fuel oil pump core temperature shock test chamber with pushing mechanisms |
| CN206192630U (en) * | 2016-11-17 | 2017-05-24 | 杭州亿塔检测技术有限公司 | A heat -resisting test device of bulb for lamps and lanterns heat resistance detects |
| CN206604511U (en) * | 2017-02-14 | 2017-11-03 | 东莞市欧可检测仪器有限公司 | A kind of low temperature impact test box |
| CN206818228U (en) * | 2017-06-27 | 2017-12-29 | 广州大冷王测控设备有限公司 | A kind of low temperature impact test box nigration frame |
| CN107349974A (en) * | 2017-09-01 | 2017-11-17 | 合肥风生水起信息科技有限公司 | A kind of low temperature impact test box |
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| CN108398351A (en) | 2018-08-14 |
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