High-temperature aging test equipment for filter

Abstract

The invention relates to the technical field of aging test equipment, and discloses filter high-temperature aging test equipment which comprises a test frame, a plurality of test boxes and a blowing-type heat supply mechanism, the test boxes and the blowing-type heat supply mechanism are installed on the test frame, and heating cavities are formed in the box walls of the test boxes. An air inlet and an air outlet which are communicated with the heating cavity are formed in the back surface of the test box; according to the invention, by arranging a plurality of independent test boxes, samples to be tested can be effectively isolated, chain reaction and simultaneous damage of a plurality of samples are avoided, the safety of the test process is improved, by arranging a partition plate and a concave plate, the lifting of the partition plate and the concave plate can be controlled according to the size of a filter, and the test efficiency is improved. Therefore, the volume of the detection cavity and the heating cavity is adjusted, heat can be concentrated in the detection cavity, energy waste caused by heating the whole large space and maintaining the constant temperature is avoided, and efficient utilization of energy is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of aging test equipment, in particular to a filter high-temperature aging test equipment. Background Art

[0002] The filter high temperature aging test equipment is an experimental device used to test the long-term stability and reliability of electronic filters in a high temperature environment. The equipment can simulate the working state of electronic products under high temperature conditions, and accelerate the exposure of potential failures and defects through continuous operation and monitoring. This testing method helps manufacturers discover and improve product designs, ensuring that the final product can withstand thermal stress in actual applications and meet the quality standards of specific industries.

[0003] Chinese patent CN115999654A discloses an online high-temperature aging box with a compact and effective structure, which can realize semi-automatic loading for aging testing. The present invention includes a bottom plate, a heating box, a heating module, a door module, a lifting module and a feeding module. The heating box is arranged on the bottom plate, the heating module is arranged above the heating box, the door module is arranged on the opening side of the heating box, the lifting module is arranged in the middle of the heating box, the feeding assembly is arranged on the bottom plate and drives the product into the heating box, the heating module is buckled and connected with the heating box, and the heating module emits heat on one side and blows it into the interior of the heating box. The invention is applied to the technical field of high-temperature aging boxes.

[0004] As shown in the above patent, existing high-temperature aging test equipment usually uses a large test chamber to accommodate the samples to be tested. However, when testing multiple samples at the same time, these devices cannot effectively isolate each sample. This design flaw may result in dangerous reactions such as combustion or explosion in some samples during the test process, which will affect other normal tested samples and cause the interruption of other sample testing. In extreme cases, it may cause a chain reaction, resulting in simultaneous damage to multiple samples. In addition, when only a small number of samples need to be tested, the use of a large test chamber will cause unnecessary waste of energy because the entire large space must be heated and maintained at a constant temperature, while the actual space used is very small.

[0005] Therefore, it is necessary to provide a filter high temperature aging test device to solve the above technical problems. Summary of the invention

[0006] The purpose of the present invention is to provide a filter high temperature aging test device, so that heat can be concentrated in the detection chamber, avoiding the energy waste of heating and maintaining a constant temperature in the entire large space, and realizing efficient use of energy.

[0007] The above technical purpose of the present invention is achieved through the following technical scheme: a filter high-temperature aging test equipment, including a test frame, a plurality of test boxes installed on the test frame and a blower heating mechanism, a heating cavity is opened inside the box wall of the test box, an air inlet and an exhaust port connected to the heating cavity are arranged on the back of the test box, the blower heating mechanism is connected to the heating cavity through the air inlet and the exhaust port, a valve assembly is arranged on the air inlet, a partition plate is slidably installed inside the test box, and a concave plate is slidably arranged in the heating cavity and rises and falls synchronously with the partition plate.

[0008] The present invention is further configured as follows: the blower heating mechanism includes an air pump, a heating box, a first diverter pipe, a second diverter pipe, a third diverter pipe and a fourth diverter pipe, the second diverter pipe is provided in plurality and distributed vertically, the plurality of air outlet ends of the second diverter pipe are connected to the air inlet, the output end of the air pump is connected to the air inlet end of the first diverter pipe through the heating box, the plurality of air inlet ends of the second diverter pipes are connected to the air outlet end of the first diverter pipe, the fourth diverter pipe is provided in plurality and distributed vertically, the plurality of air inlet ends of the fourth diverter pipe are connected to the exhaust port, the input end of the air pump is connected to the air outlet end of the third diverter pipe, and the plurality of air outlet ends of the fourth diverter pipes are connected to the air inlet end of the third diverter pipe.

[0009] The present invention is further configured as follows: magnetic strips are embedded and installed on both sides of the partition plate, and the partition plate is magnetically attracted to the concave plate through the magnetic strips.

[0010] The present invention is further configured as follows: the valve assembly includes a valve housing, a valve ball rotatably mounted inside the valve housing, and a valve shaft with one end fixedly connected to the valve ball, the valve shaft passes through a side wall of the valve housing, one end of the valve housing is connected to the air inlet, and the other end of the valve housing is connected to the heating cavity, a valve hole is provided on the valve ball, and when the valve hole is in a horizontal state, the air inlet is connected to the heating cavity.

[0011] The present invention is further configured as follows: a support platform is slidably installed at the bottom of the inner cavity of the test box, a pressure sensing component is arranged below the support platform, and the valve component also includes a transmission structure, which is transmission-connected to the pressure sensing component, so that when the pressure sensing component detects that a workpiece to be tested is placed on the support platform, the pressure sensing component drives the valve shaft to rotate through the transmission structure to open the valve assembly.

[0012] The present invention is further configured as follows: the pressure sensing component includes a support tube and a support column, the bottom end of the support tube is fixedly connected to the bottom wall of the test box, a support spring is arranged in the support tube, the top end of the support column is fixedly connected to the support platform, and the bottom end of the support column extends into the support tube and is connected to the top end of the support spring.

[0013] The present invention is further configured as follows: the transmission structure includes a rope winding wheel, a traction rope, a mounting cylinder and a torsion spring, the rope winding wheel is fixedly sleeved on the valve shaft, the end of the valve shaft is sleeved with a torsion spring, the mounting cylinder is connected to the box wall of the test box, one end of the valve shaft extends into the mounting cylinder, one end of the torsion spring is fixedly connected to the valve shaft, the other end of the torsion spring is fixedly connected to the inner wall of the mounting cylinder, one end of the traction rope is fixedly connected to the rope winding wheel, and the other end of the traction rope extends into the support cylinder and is fixedly connected to the bottom end of the support column.

[0014] The present invention is further configured as follows: a limit block is fixedly installed at the end of the valve shaft, a limit groove is provided on the inner side wall of the installation cylinder, and the limit block is arranged in the limit groove.

[0015] The present invention is further configured as follows: a guide rail is fixedly installed inside the test box, a slide groove is opened on one side of the partition plate, the guide rail passes through the slide groove, the guide rail is provided with a locking assembly, rubber blocks are embedded and installed on two opposite inner walls of the slide groove, and the locking assembly cooperates with the rubber block to lock the partition plate.

[0016] The present invention is further configured as follows: the locking assembly includes two slides and two locking plates, the guide rail is hollow, the two slides are symmetrically slidably arranged inside the guide rail, and the two slides are elastically connected by a return spring, protruding grooves are provided on both sides of the guide rail, and locking plates are provided in the two protruding grooves, one side of the two locking plates is fixedly connected to the two slides respectively, a through groove is provided at the bottom of the front wall of the guide rail, an adjusting block is slidably installed in the through groove, one end of the adjusting block is fixedly connected to the partition plate, and the other end of the adjusting block extends between the two slides, and inclined blocks are fixedly installed at the bottom of the side walls adjacent to the two slides, and when the adjusting block moves downward, the adjusting block pushes the two inclined blocks away from each other through the inclined surface of the inclined block.

[0017] In summary, the present invention has the following beneficial effects:

[0018] 1. The present invention can effectively isolate the samples to be tested by setting up multiple independent test boxes. Even if some samples have dangerous reactions such as combustion or explosion during the test, it will not affect other samples under normal test, avoiding chain reactions and simultaneous damage of multiple samples, and greatly improving the safety of the test process. By setting the partition plate and the concave plate, the lifting and lowering of the partition plate and the concave plate can be controlled according to the size of the filter, thereby adjusting the volume of the detection chamber and the heating cavity. This design allows heat to be concentrated in the detection chamber, avoiding the energy waste of heating and maintaining a constant temperature in the entire large space, and achieving efficient use of energy. The design of the test rack allows multiple test boxes to be installed at the same time, and each test box can be controlled independently, which enables the equipment to adapt to the testing needs of samples of different quantities and specifications. Whether it is a small amount of samples or a large amount of samples, they can be effectively tested, which improves the flexibility and adaptability of the equipment. The blast heating mechanism can be connected to the heating cavity through the air inlet and the exhaust port to achieve precise control of the temperature of the test box. The blowing and exhaust of hot air ensure the uniformity of heating, so that the filter can be aged in a stable high temperature environment. The accuracy of the test results is ensured;

[0019] 2. The present invention cooperates with the pressure sensing component and the transmission structure. When a workpiece to be tested is placed on the support table, the system automatically opens the valve component to allow hot air to enter the heating cavity for heating. The greater the mass of the filter placed on the support table, the greater the rotation angle of the valve shaft, and the faster the hot air enters the heating cavity, thereby automatically adjusting the air intake speed according to the different specifications of the filter. This automated operation reduces the possibility of human error and improves the convenience of operation. At the same time, the automatic locking mechanism locks the partition plate after the filter is placed, ensuring the safety of the test process. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0021] Figure 2 It is a structural schematic diagram of the blast-type heating mechanism and the test box of the present invention;

[0022] Figure 3 It is a structural schematic diagram of the back side of the test box of the present invention;

[0023] Figure 4 It is a structural schematic diagram of the front side of the test box of the present invention;

[0024] Figure 5 It is a schematic diagram of the main cross-sectional structure of the test box of the present invention;

[0025] Figure 6 It is a schematic diagram of the three-dimensional cross-sectional structure of the test box of the present invention;

[0026] Figure 7 It is a schematic structural diagram of the concave plate and the partition plate of the present invention;

[0027] Figure 8 It is a structural schematic diagram of the guide rail of the present invention;

[0028] Fig. 9 It is a schematic diagram of the three-dimensional cross-sectional structure of the guide rail of the present invention;

[0029] Fig.10 for Fig. 9 A schematic diagram of the enlarged structure at point A;

[0030] Fig.11 It is a structural schematic diagram of the valve assembly and the pressure sensing assembly of the present invention;

[0031] Fig.12 It is a schematic cross-sectional structural diagram of the valve assembly of the present invention;

[0032] Fig.13 It is a schematic cross-sectional structural diagram of the installation tube of the present invention.

[0033] In the figure: 1, test stand; 2, test box; 201, air inlet; 202, exhaust port; 203, heating cavity; 3, box door; 4, air pump; 401, output end; 402, input end; 5, heating box; 6, first shunt pipe; 7, second shunt pipe; 8, third shunt pipe; 9, fourth shunt pipe; 10, concave plate; 11, partition plate; 1101, slide groove; 12, guide rail; 1201, through groove; 13, rubber block; 14, Support platform; 15, valve assembly; 151, valve housing; 152, valve ball; 153, valve shaft; 154, mounting tube; 1541, limit groove; 155, torsion spring; 156, rope pulley; 157, traction rope; 158, guide ring; 159, limit block; 16, support tube; 17, support column; 18, support spring; 19, slide plate; 20, locking plate; 21, reset spring; 22, adjustment block; 23, inclined block; 24, magnetic strip. DETAILED DESCRIPTION

[0034] The present invention will be further described below with reference to the accompanying drawings in the embodiments of the present invention.

[0035] See also Figures 1 to 7In an embodiment of the present invention, a filter high-temperature aging test device comprises a test frame 1, a plurality of test boxes 2 mounted on the test frame 1, and a blast-type heating mechanism, wherein a box door 3 is provided on the front wall of the test box 2, a sealing structure is provided between the box door 3 and the test box 2 to improve the sealing performance when the box door 3 is closed, and a heat preservation structure is provided on the test box 2, the concave plate 10, and the partition plate 11, a heating cavity 203 is provided inside the box wall of the test box 2, an air inlet 201 and an exhaust port 202 connected to the heating cavity 203 are provided on the back of the test box 2, the blast-type heating mechanism is connected to the heating cavity 203 through the air inlet 201 and the exhaust port 202, a valve assembly 15 is provided on the air inlet 201, a partition plate 11 is slidably installed inside the test box 2, and a concave plate 10 that rises and falls synchronously with the partition plate 11 is slidably provided in the heating cavity 203; when performing a high-temperature aging test on the filter, the box door 3 is opened, and the sliding partition plate 11 makes The chamber below the partition plate 11 is large enough to accommodate the filter to be tested, and then the filter to be tested is placed in the chamber below the partition plate 11, and then the valve assembly 15 on one side of the test box 2 where the filter is placed is opened, and then the test can be carried out. During the test, hot air is blown into the air inlet 201 through the blower heating mechanism, and the blown hot air heats the heating cavity 203 and is discharged through the exhaust port 202, thereby increasing the temperature of the test box 2, and the filter is tested in a high temperature environment for a period of time to measure the filter's resistance to high temperature aging performance; by setting up multiple test boxes 2, multiple samples to be tested can be separated, so that if problems such as combustion or explosion occur during the sample testing process, it will not affect the testing of other samples, and by setting the partition plate 11 and the concave plate 10, the partition plate 11 and the concave plate 10 can be controlled to rise and fall according to the size of the filter to adjust the volume of the detection chamber and the heating cavity 203, so that the heat can be concentrated in the detection chamber, thereby avoiding energy waste.

[0036] In the present embodiment, preferably, the blast-type heating mechanism comprises an air pump 4, a heating box 5, a first shunt pipe 6, a second shunt pipe 7, a third shunt pipe 8 and a fourth shunt pipe 9. A heating pipe for heating the gas is arranged in the heating box 5. The heating pipe is provided with an electric heating wire or other means for heating. The second shunt pipe 7 is provided with a plurality of and is vertically distributed. The plurality of outlet ends of the second shunt pipe 7 are connected to the air inlet 201. The output end 401 of the air pump 4 is connected to the air inlet end of the first shunt pipe 6 through the heating box 5. The plurality of air inlet ends of the second shunt pipes 7 are connected to the air outlet end of the first shunt pipe 6. The fourth shunt pipe 9 is provided with a plurality of and is vertically distributed. The plurality of air inlet ends of the fourth shunt pipe 9 are connected to the exhaust port 201. The air inlet 201 is connected to the test box 2, the input end 402 of the air pump 4 is connected to the outlet end of the third diverter pipe 8, and the outlet ends of the plurality of fourth diverter pipes 9 are connected to the air inlet end of the third diverter pipe 8; when in use, the output end 401 of the air pump 4 is blown, and the blown gas is heated by the heating box 5 and then diverted through the first diverter pipe 6 into the plurality of second diverter pipes 7. If the valve assembly 15 at the air inlet 201 is in the open state, the gas in the second diverter pipe 7 enters the air inlet 201 there, the gas enters the heating cavity 203 to heat the test box 2, and then is discharged through the exhaust port 202 into the fourth diverter pipe 9, and then enters the air inlet end of the air pump 4 through the third diverter pipe 8 for circulation, thereby realizing continuous circulation heating.

[0037] In this embodiment, preferably, magnetic strips 24 are embedded and installed on both sides of the partition plate 11, and the partition plate 11 is magnetically attracted to the concave plate 10 through the magnetic strips 24. Specifically, the magnetic strips 24 can also be embedded and installed on the inner wall of the concave plate 10, or an iron structure can be set, so that the partition plate 11 and the concave plate 10 can be magnetically attracted and keep moving synchronously.

[0038] It should be noted that the size of the concave plate 10 is adapted to the cross-section of the heating cavity 203, so that the outer wall of the concave plate 10 fits with the inner wall of the heating cavity 203, thereby separating the upper and lower parts of the heating cavity 203, and the three side walls of the partition plate 11 fit with the three inner walls of the test box 2, and the other side wall of the partition plate 11 fits with the box door 3 when the box door 3 is closed, thereby separating the upper and lower parts of the inner cavity of the test box 2, and micro air holes are opened at the top positions of the heating cavity 203 and the test box 2 to exchange gas with the outside when the concave plate 10 and the partition plate 11 are raised and lowered.

[0039] See also Figures 11 to 13In the embodiment of the present invention, the valve assembly 15 includes a valve housing 151, a valve ball 152 rotatably mounted inside the valve housing 151, and a valve shaft 153 fixedly connected to the valve ball 152 at one end, the valve shaft 153 passes through a side wall of the valve housing 151, one end of the valve housing 151 is connected to the air inlet 201, and the other end of the valve housing 151 is connected to the heating cavity 203. A valve hole is provided on the valve ball 152. When the valve hole is in a horizontal state, the air inlet 201 is connected to the heating cavity 203; the test box 2 is inside A support platform 14 is slidably mounted at the bottom of the cavity, a pressure sensing component is arranged below the support platform 14, and the valve component 15 further comprises a transmission structure, which is in transmission connection with the pressure sensing component, so that when the pressure sensing component detects that a workpiece to be tested is placed on the support platform 14, the pressure sensing component drives the valve shaft 153 to rotate through the transmission structure to open the valve component 15, so that when a filter is placed in the test box 2, the valve component 15 is automatically opened to allow hot air to enter the heating cavity 203 for heating;

[0040] The pressure sensing assembly includes a support tube 16 and a support column 17. The bottom end of the support tube 16 is fixedly connected to the bottom wall of the test box 2. A support spring 18 is arranged in the support tube 16. The top end of the support column 17 is fixedly connected to the support platform 14. The bottom end of the support column 17 extends into the support tube 16 and is connected to the top end of the support spring 18.

[0041] Among them, the transmission structure includes a rope winding wheel 156, a traction rope 157, a mounting tube 154 and a torsion spring 155. The rope winding wheel 156 is fixedly sleeved on the valve shaft 153. The end of the valve shaft 153 is sleeved with a torsion spring 155. The mounting tube 154 is connected to the box wall of the test box 2. One end of the valve shaft 153 extends into the mounting tube 154, one end of the torsion spring 155 is fixedly connected to the valve shaft 153, and the other end of the torsion spring 155 is fixedly connected to the inner wall of the mounting tube 154. One end of the traction rope 157 is fixedly connected to the rope winding wheel 156, and the other end of the traction rope 157 extends into the support tube 16 and is fixedly connected to the bottom end of the support column 17. The traction rope 157 is in a taut state. The driving force of the torsion spring 155 can make the valve shaft 153 rotate in the direction of driving the valve assembly 15 to open.

[0042] In this embodiment, preferably, a limit block 159 is fixedly installed at the end of the valve shaft 153, and a limit groove 1541 is provided on the inner wall of the mounting cylinder 154. The limit block 159 is arranged in the limit groove 1541, thereby limiting the rotation range of the valve shaft 153, so that the valve shaft 153 can only rotate within the range of 0-90°.

[0043] In this embodiment, preferably, a guide ring 158 is provided on one side of the installation tube 154 , and the guide ring 158 is connected to the box wall of the test box 2 . The traction rope 157 passes through the guide ring 158 , so as to limit and guide the traction rope 157 .

[0044] When no filter is placed on the support platform 14 for testing, under the elastic action of the support spring 18, the support column 17 is in an extended state, and at this time, under the limiting action of the traction rope 157, the torsion spring 155 cannot drive the valve shaft 153 to rotate, so that the valve hole on the valve ball 152 is in a vertical state, and the valve assembly 15 is in a closed state. At this time, the hot air blown out by the blast heating mechanism cannot enter the heating cavity 203 through the air inlet 201, thereby not heating the test box 2, so that the test box 2 without a filter placed thereon will not heat up, thereby achieving an energy-saving effect. When a filter is placed on the support platform 14, at this time, under the pressure of the filter itself, the support spring 18 is compressed, and the support column 17 moves downward, causing the traction rope 157 to partially move. The support tube 16 is moved out of the valve shaft 153 under the action of the torsion spring 155, thereby driving the valve ball 152 to rotate, so that the air inlet 201 is connected with the heating cavity 203 through the valve hole. The larger the volume of the filter placed on the support platform 14, the greater the mass, the greater the pressure on the support spring 18, and the greater the distance the support column 17 moves downward, so that the traction rope 157 is moved out of the support tube 16. The longer the length, the greater the rotation angle of the valve shaft 153, and the faster the hot air enters the heating cavity 203. Therefore, the air intake speed can be automatically adjusted according to the different specifications of the filter, and the hot air entering the heating cavity 203 can be reasonably distributed, ensuring that each filter being tested can be heated to the test temperature in a similar time.

[0045] See also Figures 5 to 10In the embodiment of the present invention, a guide rail 12 is fixedly installed inside the test box 2, and the guide rail 12 is vertically arranged. A slide groove 1101 is opened on one side of the partition plate 11, and the guide rail 12 passes through the slide groove 1101. The guide rail 12 is provided with a locking component, and rubber blocks 13 are embedded and installed on the two opposite inner side walls of the slide groove 1101. The locking component cooperates with the rubber block 13 to lock the partition plate 11; the locking component includes two slide plates 19 and two locking plates 20. The guide rail 12 is hollow, and the two slide plates 19 are symmetrically slidably arranged inside the guide rail 12, and the two slide plates 19 are elastically connected by a reset spring 21. Both sides of the guide rail 12 are provided with extension grooves, and both extension grooves are provided with There is a locking plate 20, one side of the two locking plates 20 is fixedly connected to the two slide plates 19 respectively, when the return spring 21 is in the natural state, the two locking plates 20 do not extend from the extension groove, so as not to press on the rubber block 13, the bottom of the front wall of the guide rail 12 is provided with a through groove 1201, an adjusting block 22 is slidably installed in the through groove 1201, one end of the adjusting block 22 is fixedly connected to the partition plate 11, and the other end of the adjusting block 22 extends between the two slide plates 19, and the bottom of the side walls close to the two slide plates 19 are fixedly installed with an inclined block 23, the width of the inclined block 23 gradually decreases from top to bottom, when the adjusting block 22 moves downward, the adjusting block 22 pushes the two inclined blocks 23 away from each other through the inclined surface of the inclined block 23;

[0046] When placing the filter to be tested, first slide the partition plate 11 upward so that the space below the partition plate 11 is sufficient to place the filter to be tested, and then place the filter to be tested. Under the pressure of the filter, the support platform 14 moves downward, thereby driving the adjustment block 22 to move downward, so that the adjustment block 22 pushes the two inclined blocks 23 away from each other through the inclined surface of the inclined block 23, and then the two slides 19 push the locking plate 20 out of the extension groove and press on the rubber block 13, thereby locking the partition plate 11, making it impossible for the partition plate 11 to rise or fall, thereby realizing automatic locking of the partition plate 11, and the partition plate 11 can be automatically locked after the filter is placed without other locking operations, thereby improving the convenience of operation.

[0047] The above description is only a preferred embodiment of the present invention, so all equivalent changes or modifications made according to the structure, characteristics and principles described in the scope of the patent application of the present invention are included in the scope of the patent application of the present invention.

Claims

1. A filter high temperature aging test device, comprising a test frame (1), a plurality of test boxes (2) mounted on the test frame (1) and a blast type heating mechanism, characterized in that: A heating cavity (203) is provided inside the box wall of the test box (2); an air inlet (201) and an air outlet (202) which are in communication with the heating cavity (203) are provided on the back of the test box (2); a blast-type heating mechanism is in communication with the heating cavity (203) via the air inlet (201) and the air outlet (202); a valve assembly (15) is provided on the air inlet (201); a partition plate (11) is slidably mounted inside the test box (2); and a concave plate (10) which rises and falls synchronously with the partition plate (11) is slidably mounted inside the heating cavity (203).

2. A filter high temperature aging test equipment according to claim 1, characterized in that: The blast-type heating mechanism comprises an air pump (4), a heating box (5), a first diverter pipe (6), a second diverter pipe (7), a third diverter pipe (8) and a fourth diverter pipe (9); a plurality of second diverter pipes (7) are provided and are distributed vertically; a plurality of air outlet ends of the second diverter pipes (7) are connected to an air inlet (201); an output end (401) of the air pump (4) is connected to an air inlet end of the first diverter pipe (6) through the heating box (5); a plurality of air inlet ends of the second diverter pipes (7) are connected to an air outlet end of the first diverter pipe (6); a plurality of fourth diverter pipes (9) are provided and are distributed vertically; a plurality of air inlet ends of the fourth diverter pipe (9) are connected to an air outlet (202); an input end (402) of the air pump (4) is connected to an air outlet end of the third diverter pipe (8); a plurality of air outlet ends of the fourth diverter pipes (9) are connected to an air inlet end of the third diverter pipe (8).

3. The filter high temperature aging test equipment according to claim 1, characterized in that: Magnetic strips (24) are embedded and installed on both sides of the partition plate (11), and the partition plate (11) is magnetically attracted to the concave plate (10) through the magnetic strips (24).

4. The filter high temperature aging test equipment according to claim 1, characterized in that: The valve assembly (15) comprises a valve housing (151), a valve ball (152) rotatably mounted inside the valve housing (151), and a valve shaft (153) one end of which is fixedly connected to the valve ball (152); the valve shaft (153) passes through a side wall of the valve housing (151); one end of the valve housing (151) is connected to an air inlet (201); the other end of the valve housing (151) is connected to a heating cavity (203); a valve hole is provided on the valve ball (152); when the valve hole is in a horizontal state, the air inlet (201) is connected to the heating cavity (203).

5. A filter high temperature aging test device according to claim 4, characterized in that: A support platform (14) is slidably mounted at the bottom of the inner cavity of the test box (2), a pressure sensing component is arranged below the support platform (14), and the valve component (15) further comprises a transmission structure, the transmission structure is in transmission connection with the pressure sensing component, so that when the pressure sensing component detects that a workpiece to be tested is placed on the support platform (14), the pressure sensing component drives the valve shaft (153) to rotate through the transmission structure to open the valve component (15).

6. A filter high temperature aging test device according to claim 5, characterized in that: The pressure sensing component comprises a support tube (16) and a support column (17); the bottom end of the support tube (16) is fixedly connected to the bottom wall of the test box (2); a support spring (18) is arranged in the support tube (16); the top end of the support column (17) is fixedly connected to the support platform (14); the bottom end of the support column (17) extends into the support tube (16) and is connected to the top end of the support spring (18).

7. A filter high temperature aging test device according to claim 6, characterized in that: The transmission structure comprises a rope winding wheel (156), a traction rope (157), a mounting tube (154) and a torsion spring (155); the rope winding wheel (156) is fixedly sleeved on the valve shaft (153); the end of the valve shaft (153) is sleeved with a torsion spring (155); the mounting tube (154) is connected to the box wall of the test box (2); one end of the valve shaft (153) extends into the mounting tube (154); one end of the torsion spring (155) is fixedly connected to the valve shaft (153); the other end of the torsion spring (155) is fixedly connected to the inner wall of the mounting tube (154); one end of the traction rope (157) is fixedly connected to the rope winding wheel (156); the other end of the traction rope (157) extends into the support tube (16) and is fixedly connected to the bottom end of the support column (17).

8. A filter high temperature aging test device according to claim 7, characterized in that: A limit block (159) is fixedly mounted on the end of the valve shaft (153); a limit groove (1541) is provided on the inner side wall of the mounting cylinder (154); and the limit block (159) is arranged in the limit groove (1541).

9. The filter high temperature aging test equipment according to claim 5, characterized in that: A guide rail (12) is fixedly installed inside the test box (2); a slide groove (1101) is provided on one side of the partition plate (11); the guide rail (12) passes through the slide groove (1101); the guide rail (12) is provided with a locking component; two opposite inner side walls of the slide groove (1101) are embedded with rubber blocks (13); the locking component cooperates with the rubber block (13) to lock the partition plate (11).

10. A filter high temperature aging test device according to claim 9, characterized in that: The locking assembly comprises two slide plates (19) and two locking plates (20); the guide rail (12) is hollow; the two slide plates (19) are symmetrically slidably arranged inside the guide rail (12); the two slide plates (19) are elastically connected via a return spring (21); both sides of the guide rail (12) are provided with extension grooves; the two extension grooves are provided with locking plates (20); one side of the two locking plates (20) is fixedly connected to the two slide plates (19) respectively; the front wall of the guide rail (12) is A through groove (1201) is provided at the bottom, and an adjusting block (22) is slidably installed in the through groove (1201). One end of the adjusting block (22) is fixedly connected to the partition plate (11), and the other end of the adjusting block (22) extends between the two slide plates (19). The bottoms of the adjacent side walls of the two slide plates (19) are fixedly installed with inclined blocks (23). When the adjusting block (22) moves downward, the adjusting block (22) pushes the two inclined blocks (23) away from each other through the inclined surface of the inclined block (23).

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