CN218047952U

CN218047952U - High-low temperature alternating thermal test box with uniform temperature and humidity

Info

Publication number: CN218047952U
Application number: CN202220454900.3U
Authority: CN
Inventors: 陈刚; 严峰
Original assignee: Wuxi Yingbai Technology Co ltd
Current assignee: Wuxi Yingbai Technology Co ltd
Priority date: 2022-03-02
Filing date: 2022-03-02
Publication date: 2022-12-16
Anticipated expiration: 2032-03-02

Abstract

The application discloses warm proof box of high low temperature reversal of humiture is even, it includes the proof box body and sets up the chamber door on the proof box body, still include electric heating pipe, circulation subassembly and humidification subassembly, electric heating pipe sets up on proof box body inside wall, the circulation subassembly is including setting up fan and the first driving piece of drive fan pivoted in the proof box body, the humidification subassembly is including setting up the humidification pipe that solution tank and level set up in the proof box body, the humidification pipe passes through the hose connection with the solution tank, be provided with steam generator on the hose, the intercommunication is provided with out the fog mouth on the humidification pipe, be provided with the second driving piece that the drive humidification pipe removed along vertical direction in the proof box body. This application has the effect that the incasement environment humiture is even, improve the test result degree of accuracy.

Description

High-low temperature alternating thermal test box with uniform temperature and humidity

Technical Field

The application relates to a high-low temperature alternating thermal test box, in particular to a high-low temperature alternating thermal test box with uniform temperature and humidity.

Background

The high-low temperature alternating test box is a common test device in the fields of aviation, automobiles, household appliances, scientific research and the like. The device is used for testing and determining parameters and performances of electrical, electronic and other products and materials after environmental changes of high temperature, low temperature, alternating or constant test temperature, and is a common reliability test device. The test method is often applied to high temperature resistance, low temperature resistance and humidity cycle tests of products such as optical fibers, LCDs, crystals, inductors, PCBs and the like.

At present, a common high-low temperature alternating temperature thermal test chamber includes a test chamber body, a chamber door disposed on the test chamber body, and a device for adjusting temperature and humidity.

In view of the above related technologies, the inventor thinks that, in the process of detecting the product performance of the currently used high-low temperature alternating-heat test chamber, the temperature and humidity in the test chamber body may be unevenly distributed, thereby affecting the accuracy of the experimental result.

SUMMERY OF THE UTILITY MODEL

In order to promote the accuracy of test result, this application provides a warm proof box of high low temperature alternation of humiture uniformity.

The application provides a warm proof box of high low temperature alternation of humiture uniformity adopts following technical scheme:

the high-low temperature alternating warming test box comprises a test box body and a box door arranged on the test box body, and further comprises an electric heating pipe, a circulating component and a humidifying component, wherein the electric heating pipe is arranged on the inner side wall of the test box body, the circulating component comprises a fan arranged in the test box body and a first driving piece for driving the fan to rotate, the humidifying component comprises a solution box arranged in the test box body and a humidifying pipe horizontally arranged in the test box body, the humidifying pipe is connected with the solution box through a hose, a steam generator is arranged on the hose, a mist outlet nozzle is communicated with the humidifying pipe, and a second driving piece for driving the humidifying pipe to move along the vertical direction is arranged in the test box body.

Through adopting above-mentioned technical scheme, during the experiment, operating personnel will await measuring the work piece and put into the proof box body, start electric heating pipe and humidification subassembly, electric heating pipe heats the inner chamber of proof box body. The steam generator converts water in the solution tank into steam, and the steam is sprayed into the inner cavity of the test box body. The second driving piece drives the heating to move in a reciprocating manner, so that water mist is uniformly distributed at each position in the test box body, and the uniformity of humidity is improved. The fan rotates under the drive of the first driving piece, so that air flow in the test box body circulates, and the uniformity of the temperature in the test box body is improved. Through mutually supporting of proof box, electric heating pipe, circulation subassembly, humidification subassembly and second driving piece, realized having the even humidification and the heating in the proof box body, have the effect that the incasement environment humiture is even, improve the test result degree of accuracy.

Optionally, the second driving part comprises a sliding strip vertically connected to the inner side wall of the test box body, a driving motor connected to the inner wall of the test box body, and a sliding block connected to the humidification tube, a sliding groove is formed in the sliding strip along the length direction of the sliding strip, the sliding block is slidably embedded in the sliding groove, a screw rod is connected to the driving motor in a transmission manner, the screw rod is arranged in parallel with the sliding strip, and the screw rod is in threaded connection with the sliding block.

Through adopting above-mentioned technical scheme, when carrying out the humidification to the inner chamber of proof box body, driving motor functions, drives the screw rod and takes place to rotate, and the piece that slides along the length direction of the strip that slides under the drive of screw rod, has realized the drive to the humidification pipe.

Optionally, the inner wall of the test box body is connected with a guide strip, the guide strip is arranged in parallel with the sliding strip, a guide groove is formed in the guide strip along the length direction of the guide strip, the humidifying pipe is connected with a guide block, and the guide block is embedded in the guide groove in a sliding manner.

Through adopting above-mentioned technical scheme, the removal that sets up to the humidifying pipe of guide block and gib block provides spacing direction, has improved the structural stability of humidifying pipe at the removal in-process.

Optionally, the two humidifying pipes and the two second driving pieces are respectively arranged on two opposite side walls of the test box body, and the two humidifying pipes and the two second driving pieces are arranged in a one-to-one correspondence manner.

Through adopting above-mentioned technical scheme, two humidification pipes carry out the humidification to the different positions in the test box body inner chamber simultaneously, have improved the homogeneity that water smoke distributes in the test box body.

Optionally, the first driving part includes a circulating motor connected to the top end of the test box body, the circulating motor is in transmission connection with the fan, a fan is arranged on the test box body, an air pipe is communicated with the fan, and one end, far away from the fan, of the air pipe penetrates through the bottom wall of the test box body and penetrates into the bottom wall.

Through adopting above-mentioned technical scheme, when testing, fan and circulating motor function make the air current convection current in the proof box body, have guaranteed the homogeneity of temperature in the proof box body, do benefit to the accuracy that improves the experimental result.

Optionally, the air pipe is provided with a plurality of air pipes communicated with the fan.

Through adopting above-mentioned technical scheme, the setting up of many tuber pipes makes the air convection in the proof box body more even abundant.

Optionally, the humidifying pipes are provided with a plurality of mist outlet nozzles along the length direction thereof, and outlet ends of the adjacent mist outlet nozzles are arranged in a staggered manner.

By adopting the technical scheme, the outlet ends of the mist outlet nozzles are arranged in a staggered manner, so that the spraying range of the humidifying assembly is enlarged, and the uniformity of water mist distribution is improved.

Optionally, a temperature control panel is arranged on the test box body, a plurality of temperature probes are connected to the inner side wall of the test box body, the plurality of temperature probes are located at different positions in the test box body, and the plurality of temperature probes are electrically connected with the temperature control panel.

Through adopting above-mentioned technical scheme, a plurality of temperature probe detect the temperature of different positions in the proof box body, and when the difference in temperature of a plurality of positions exceeded the threshold value, temperature probe transmission signal to temperature control panel reminded operating personnel to adjust.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the test box, the electric heating pipe, the circulating component, the humidifying component and the second driving component are matched with each other, so that uniform humidification and heating in the test box body are realized, and the effects of uniform temperature and humidity of the environment in the test box and improvement of the accuracy of a test result are achieved;

2. the guide blocks and the guide strips are arranged to provide limiting guide for the movement of the humidifying pipe, so that the structural stability of the humidifying pipe in the movement process is improved;

3. the outlet ends of the fog outlets are arranged in a staggered manner, so that the spraying range of the humidifying assembly is expanded, and the uniformity of water mist distribution is improved.

Drawings

Fig. 1 is a schematic structural diagram of a high-low temperature alternating temperature and humidity test box for embodying a uniform temperature and humidity in an embodiment of the present application.

Fig. 2 is a right side view of a high-low temperature alternating temperature and humidity test chamber with uniform temperature and humidity in the embodiment of the present application.

Fig. 3 is an enlarged view taken along linebase:Sub>A-base:Sub>A in fig. 2.

Fig. 4 is an enlarged view of a portion B in fig. 3.

Description of reference numerals: 1. a test chamber body; 2. a box door; 3. an electric heating tube; 4. a circulation component; 41. a circulating motor; 42. a fan; 5. a humidifying assembly; 51. a solution tank; 52. a humidifying pipe; 53. a hose; 54. a steam generator; 55. a mist outlet nozzle; 6. a window; 7. a temperature control panel; 8. a roller; 9. a second driving member; 91. a sliding strip; 92. a drive motor; 93. a screw; 94. a sliding groove; 95. mounting a plate; 96. a sliding block; 97. a guide bar; 98. a guide groove; 99. a guide block; 10. a fan; 11. an air duct; 12. an air outlet nozzle; 13. a temperature probe.

Detailed Description

The present application is described in further detail below with reference to figures 1-4. The embodiment of the application provides an even high low temperature alternation warm thermal test case of humiture, it has the effect that incasement environment humiture is even, improve the test result degree of accuracy.

Referring to fig. 1, the high-low temperature alternating warming test box with uniform temperature and humidity comprises a test box body 1, a box door 2, an electric heating pipe 3, a circulating assembly 4 and a humidifying assembly 5. The box door 2 is rotatably connected to the vertical side wall of the test box body 1, and a window 6 for observation is arranged on the box door 2. A temperature control panel 7 is arranged on the test box body 1, and the bottom of the test box body 1 is connected with a roller 8. The electric heating pipes 3 are arranged on the side wall of the test box body 1 in a snake shape, and one electric heating pipe 3 is arranged on each of two opposite inner side walls of the test box body 1.

Referring to fig. 1 to 3, the circulation unit 4 includes a circulation motor 41 attached to the top surface of the test chamber body 1, and an output shaft of the circulation motor 41 penetrates through the top wall of the test chamber body 1 and is drivingly connected to a fan 42. The humidifying component 5 comprises a solution tank 51 and a humidifying pipe 52, the solution tank 51 is connected with the humidifying pipe 52 through a hose 53, a steam generator 54 is arranged on the hose 53, and a plurality of mist outlet nozzles 55 are communicated on the humidifying pipe 52 at equal intervals along the length direction of the humidifying pipe. The test chamber body 1 is provided therein with a second driving member 9 for driving the humidifying pipe 52 to move in the vertical direction.

Referring to fig. 1-3, in the test, the box door 2 is opened to place the workpiece to be tested into the test box body 1, the electric heating tube 3 and the humidifying component 5 are started, and the electric heating tube 3 heats the inner cavity of the test box body 1. Steam generator 54 changes the water in solution tank 51 into steam, and steam passes through hose 53, humidification pipe 52 and goes out fog mouth 55 and spouts into the inner chamber of proof box body 1, and second driving piece 9 starts, drives humidification pipe 52 along vertical direction reciprocating motion for each position in the inner chamber of proof box body 1 all has the water smoke, has improved the homogeneity of humidity in the proof box body 1, helps improving the accuracy of test result. The fan 42 is driven by the circulating motor 41 to rotate, so that the airflow in the test box body 1 is circulated, and the uniformity of the temperature in the test box body 1 is improved.

Referring to fig. 3 and 4, the second driving member 9 includes a slide bar 91, a driving motor 92, and a screw 93. The vertical fixed connection of the strip 91 that slides on the vertical inside wall of proof box body 1, the groove 94 that slides has been seted up along its length direction to one side that the strip 91 kept away from proof box body 1 inner wall that slides. The driving motor 92 is connected to the inner wall of the test box body 1, one end of the screw 93 is connected to the output shaft of the driving motor 92, and the other end is rotatably connected to the inner wall of the test box body 1 through the mounting plate 95. One end of the humidifying pipe 52 in the length direction is fixedly connected with a sliding block 96, the sliding block 96 is in threaded connection with the screw 93, and the sliding block 96 is embedded in the sliding groove 94 in a sliding manner. Vertical fixedly connected with guide strip 97 on the inner wall of proof box body 1, guide way 98 has been seted up along its length direction to one side that the inner wall of proof box body 1 was kept away from to guide strip 97. The end of the humidifying pipe 52 opposite to the sliding block 96 is fixedly connected with a guide block 99, and the guide block 99 is slidably embedded in the guide groove 98. The two humidifying pipes 52 and the two second driving pieces 9 are respectively arranged in the test box body 1, the two humidifying pipes 52 and the two groups of second driving pieces 9 are arranged in a one-to-one correspondence mode, and the two second driving pieces 9 are respectively arranged on two opposite inner side walls of the test box body 1.

Referring to fig. 3 and 4, in a temperature and humidity test, the driving motor 92 operates to drive the screw 93 to rotate, and the sliding block 96 slides along the length direction of the sliding strip 91 under the driving of the screw 93 and the limit of the guide groove 98. The arrangement of the guide blocks 99 and the guide strips 97 provides guidance for the movement of the humidifying pipe 52 in the vertical direction, so that the humidifying pipe 52 is kept horizontal in the movement process, and the structural stability of the humidifying pipe 52 in the movement process is improved. The two groups of second driving pieces 9 and the two humidifying pipes 52 humidify different positions in the test box body 1 at the same time, so that the uniformity of water mist distribution in the test box body 1 is improved.

Referring to fig. 3, the humidifying pipes 52 are arranged in a staggered manner with the adjacent fog outlets 55 facing each other, so that the spraying range of the humidifying pipes 52 is enlarged, and the uniformity of the water mist distribution in the test chamber body 1 is further improved.

Referring to fig. 1 and 3, a fan 10 is connected to the outer side wall of the test box body 1, an air pipe 11 is connected to the fan 10, four air outlets 12 are communicated with the air pipe 11, the air outlets 12 penetrate through the bottom surface of the test box body 1 and extend into the bottom surface, and one air outlet 12 is arranged at each of four corners of the bottom surface of the test box body 1. The end of the air outlet nozzle 12 extending into the test box body 1 is arranged upwards. Be connected with two temperature probe 13 on the inside wall of proof box body 1, two temperature probe 13 connect in the different positions of proof box body 1, temperature probe 13 and control by temperature change panel 7 electric connection.

Referring to fig. 1 and 3, when a test is performed, the fan 10 and the circulating motor 41 are simultaneously started, so that convection occurs in air flow in the test box body 1, temperature uniformity in the test box body 1 is improved, and the accuracy of an experimental result is improved. Two temperature probe 13 detect the temperature of different positions in the 1 inner chamber of proof box body simultaneously, and when the difference in temperature of two positions exceeded the threshold value, temperature probe 13 was with signal transmission to control by temperature change panel 7, and control by temperature change panel 7 sends out the police dispatch newspaper, reminds operating personnel to adjust.

The implementation principle of the high-low temperature alternating warm heat test box with uniform temperature and humidity in the embodiment of the application is as follows: when carrying out the humiture test, open chamber door 2 and put into proof box body 1 with the work piece that awaits measuring, start electric heating pipe 3 and humidification subassembly 5, electric heating pipe 3 heats the inner chamber of proof box body 1. Steam generator 54 changes the water in solution tank 51 into steam, and steam spouts the inner chamber of test box body 1 through hose 53, humidification pipe 52 and fog outlet 55, and second driving piece 9 starts, drives electric heating pipe 3 along vertical direction reciprocating motion for each position in test box body 1 inner chamber all has the water smoke. The fan 42 is driven by the circulating motor 41 to rotate, and the fan 10 operates to introduce airflow into the test box body 1 through the air outlet nozzle 12, so that the airflow in the test box body 1 circulates, and the uniformity of the temperature in the test box body 1 is improved. The temperature probe 13 detects the temperature of different positions in the test box body 1, and when the temperature difference of different positions in the test box body 1 exceeds a threshold value, the temperature control panel 7 gives an alarm.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a warm proof box of high low temperature alternation of humiture is even, includes proof box body (1) and set up in chamber door (2) on proof box body (1), its characterized in that: still include electric heating pipe (3), circulation subassembly (4) and humidification subassembly (5), electric heating pipe (3) set up in on test box body (1) inside wall, circulation subassembly (4) including set up in fan (42) in test box body (1) and drive fan (42) pivoted first driving piece, humidification subassembly (5) including set up in solution box (51) and the humidification pipe (52) of level setting in test box body (1), humidification pipe (52) with solution box (51) are passed through hose (53) and are connected, be provided with steam generator (54) on hose (53), the intercommunication is provided with out fog mouth (55) on humidification pipe (52), be provided with the drive in test box body (1) humidification pipe (52) are along second driving piece (9) that vertical direction removed.

2. The high-low temperature alternating thermal test box with uniform temperature and humidity according to claim 1, which is characterized in that: second driving piece (9) including vertical connect in slide strip (91) on test box body (1) inside wall, connect in drive motor (92) on test box body (1) inner wall, connect in sliding block (96) on humidification pipe (52), sliding groove (94) have been seted up along its length direction on slide strip (91), sliding block (96) slip inlay locate in sliding groove (94), the transmission is connected with screw rod (93) on drive motor (92), screw rod (93) about slide strip (91) parallel arrangement, screw rod (93) with sliding block (96) threaded connection.

3. The high-low temperature alternating thermal test box with uniform temperature and humidity according to claim 2, characterized in that: be connected with gib block (97) on test box body (1) inner wall, gib block (97) about slip strip (91) parallel arrangement, guide way (98) have been seted up along its length direction on gib block (97), be connected with guide block (99) on humidifying pipe (52), guide block (99) slide to inlay and locate in guide way (98).

4. The high-low temperature alternating thermal test box with uniform temperature and humidity according to claim 3, characterized in that: the two humidifying pipes (52) and the two second driving pieces (9) are respectively arranged on two opposite side walls of the test box body (1), and the two humidifying pipes (52) and the two second driving pieces (9) are arranged in a one-to-one correspondence mode.

5. The high-low temperature alternating thermal test box with uniform temperature and humidity according to claim 1, which is characterized in that: the first driving part comprises a circulating motor (41) connected to the top end of the test box body (1), the circulating motor (41) is in transmission connection with the fan (42), a fan (10) is arranged on the test box body (1), an air pipe (11) is communicated with the fan (10), and one end, far away from the fan (10), of the air pipe (11) penetrates through the bottom wall of the test box body (1) and penetrates into the bottom wall.

6. The high-low temperature alternating warming test box with uniform temperature and humidity according to claim 5, characterized in that: the air pipe (11) is communicated with the fan (10) and is provided with a plurality of air pipes.

7. The high-low temperature alternating thermal test box with uniform temperature and humidity according to claim 1, which is characterized in that: the humidifying pipes (52) are provided with a plurality of mist outlet nozzles (55) along the length direction, and the outlet ends of the adjacent mist outlet nozzles (55) are arranged in a staggered mode.

8. The high-low temperature alternating thermal test box with uniform temperature and humidity according to claim 1, which is characterized in that: the temperature control panel (7) is arranged on the test box body (1), a plurality of temperature probes (13) are connected to the inner side wall of the test box body (1), the temperature probes (13) are located at different positions in the test box body (1), and the temperature probes (13) are electrically connected with the temperature control panel (7).