CN118011064A - HTRB aging test unit - Google Patents

Abstract

The invention relates to the technical field of device testing equipment and discloses an HTRB aging testing unit which comprises a unit base and a drawer shell, wherein a drawer upper cover part is arranged on the drawer shell, a first installation part is arranged on one side of the drawer upper cover part and is used for detachably installing the drawer upper cover part and the drawer shell, a second installation part is arranged on the other side of the drawer upper cover part and is used for locking the drawer upper cover part on the drawer shell, a first butt joint part is arranged on one side of the inner wall of the drawer shell, a first positioning pin and a second positioning pin are adopted to align corresponding positioning holes, so that a probe positioning plate is aligned above a heat sink, the drawer upper cover part is pressed down, three pins on each probe are respectively attached to three detection surfaces on a PCB aging plate in alignment, and after the drawer upper cover part is completely lowered and attached to the upper heat sink, the clamping and fixing of all the PCB aging plates are completed, and the stability during the detection is ensured.

Description

HTRB aging test unit

Technical Field

The invention relates to the technical field of device testing equipment, in particular to an HTRB aging test unit.

Background

In order to ensure the reliability of the device, a series of reliability tests are adopted for checking and screening before the device leaves the factory. The type and condition of the reliability test adopted are different according to different use environments of the device, and the HTRB test is one of tests which are needed to be carried out before the device leaves the factory.

According to chinese patent publication No. CN208921805U, this patent provides a small-size HTRB structure, including the shell, set up the high temperature drying test box on shell upper portion, set up at the control box of shell lower part, set up at the test box control panel at the shell middle part and set up display and the keyboard mouse in shell one side, be equipped with the high temperature and high pressure docking station that is used for inserting the ageing plate in the high temperature drying test box, the ageing plate quantity of inserting in the high temperature and high pressure docking station is below 8, and the device quantity that sets up on every ageing plate is below 80, set up the adjustable power of many different powers in the control box, can encapsulate according to the device is different, sets up different ageing plates, and the highest 640 devices can be put to the ageing device quantity of test is more, and the test volume satisfies most company's requirement, according to customer's requirement, can put the adjustable power of many different powers, and is multiple functional, and test effect obtains the guarantee, and easy and simple and convenient to handle, area is little, and the practicality is strong, and use cost is lower.

In the above, the number of product devices to be placed is large under a large number of device work sites, the problem that the clamp is difficult to clamp a large number of devices to cause instability exists in the test process, and the temperature difference exists when a large number of devices are piled up under constant temperature, so that the uneven fluctuation of the heated devices is large. An HTRB burn-in unit is proposed to solve the above-mentioned problems.

Disclosure of Invention

(One) solving the technical problems

Aiming at the defects of the prior art, the invention provides an HTRB aging test unit, which solves the problem that a large number of devices are difficult to clamp by a clamp in the test process due to more product devices, so that unstable installation is generated.

(II) technical scheme

In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a HTRB ageing test unit, includes unit base and drawer shell, install drawer upper cover portion on the drawer shell, first installation department installs one side of drawer upper cover portion is used for with drawer upper cover portion carries out demountable installation with the drawer shell, and second installation department is installed the opposite side of drawer upper cover portion will drawer upper cover portion locking is on the drawer shell, first interfacing part is installed one side of the inner wall of drawer shell with first installation department carries out the butt joint, and second interfacing part is installed the inner wall opposite side of drawer shell carries out the butt joint with second installation department, and clamping part installs in the drawer upper cover portion for carry out location centre gripping and switch on the PCB ageing board, heating part installs in the drawer shell for provide station and contact heating to the PCB ageing board, the protection part is installed one side of drawer shell is used for protecting the probe.

Preferably, the drawer upper cover part comprises two side frames, a front mounting plate and a rear mounting plate are connected between the two side frames, the first mounting part comprises a rotating shaft, one end of the rotating shaft is rotationally connected to the front mounting plate through a bearing, a half gear is sleeved on the rotating shaft, one face of the half gear without meshing teeth is connected with a support arm, and the top of the support arm is connected with a clamping piece.

Preferably, the side wall of support arm is connected with angle block one, be connected with angle block two on the preceding mounting panel, be connected with the extension spring between angle block one and the angle block two, the support arm is kept away from the one end bottom of half gear and is connected with the slide bar, be connected with the draw runner on the one end that the support arm was kept away from to the slide bar, the draw runner is kept away from on the one end of slide bar and is seted up flutedly, the inner wall sliding connection of recess has the fixture block, elastic connection has spring one between fixture block and the recess inner wall, the quantity of first installation department has two, two symmetry sets up between the first installation department, two mesh between two half gears in the first installation department. The pulling force of the tension spring pulls the corner block to drive the support arm to turn around the rotating shaft as the axis, and simultaneously, the half gear is engaged to synchronously drive the other support arm to turn around, so that the two support arms are synchronously separated from each other, and the respective sliding rods are driven to slide in the inner wall of the arc hole.

Preferably, the second installation department is kept away from first installation department and includes the spacer block, the spacer block is installed on the rear mounting panel, two pole holes have been seted up on the spacer block, every the inner wall in pole hole is sliding connection respectively has the connecting rod, every be connected with the ejector pad respectively on the one end that the spacer block was kept away from to the connecting rod, every elastic connection has the spring second respectively to one side of ejector pad and spacer block, every the bottom body of ejector pad is connected with spacing arm, every spacing hole has been seted up respectively on the ejector pad, every spacing hole aligns the setting with every pole hole on the spacer block respectively. When the push rod is installed, the two push plates are pressed to be close to each other, the connecting rod can slide into the aligned limiting hole according to the aligned rod hole, and the problem that the push plates are clamped can not be caused.

Preferably, the clamping part comprises an upper cover pressing plate, the upper cover pressing plate is arranged between the front mounting plate and the rear mounting plate, a product plate is arranged between the two side frames, the product plate is positioned at the bottoms of the front mounting plate and the rear mounting plate, two hundred sixty first probes are arranged between the upper cover pressing plate and the product plate, three pins are arranged on each first probe, a connector is arranged on one side of the product plate, a probe positioning plate is arranged at the bottom of the product plate, and each first probe pin movably penetrates through the product plate and the probe positioning plate respectively. The pin on each probe one can be accurately matched with the aligned PCB aging board for conducting connection.

Preferably, the first butt joint portion includes locating plate one, locating plate one installs the bottom at the product board, the arc hole has all been seted up on locating plate one and the product board and the preceding mounting panel, and the intercommunication sets up between the arc hole, locating plate one's bottom is connected with locating pin one, locating plate one is installed to drawer housing's inner wall, set up the arc groove that corresponds with the arc hole on the locating plate one, locating plate one that corresponds with locating pin one has been seted up on the locating plate one, slide bar sliding connection has been seted up the inside wall at arc hole and arc groove, the inside wall in arc groove has seted up the inside wall in inside groove, the draw-in groove that corresponds with the fixture block is seted up at the inner wall top in inside groove, slide bar sliding connection is at the inner wall in arc groove and inside groove. The first mounting part is clamped and fixed in the first butt joint part through curvilinear motion, so that the problem that the upper cover part of the drawer is staggered and rocked in the XY axial direction is avoided.

Preferably, the second butt joint portion includes locating plate two, locating plate two installs the bottom at the rear mounting panel, the slide hole has all been seted up on rear mounting panel and the locating plate two, and the intercommunication sets up between the slide hole, locating plate two's bottom is connected with locating pin two, aligning plate two is installed to drawer housing's inner wall opposite side, set up the spout that corresponds with the slide hole on the aligning plate two, set up locating hole two that corresponds with locating pin two on the aligning plate two, the spacing arm is L type structure, and spacing arm sliding connection is at the inner wall of slide hole and spout, the spacing groove has been seted up to the inner wall of spout, the one end that the push plate was kept away from to the spacing arm is pegged graft in the spacing groove. The pushing piece is pushed under the elasticity of the second spring, and meanwhile the limiting arm is driven to be inserted into the limiting groove in a sliding mode along the sliding groove to be limited and propped, and therefore the installation stability between the rear installation plate and the second alignment plate is guaranteed.

Preferably, the heating portion comprises a heat sink and a heat insulating plate, the heat insulating plate is arranged at the bottom of the inner wall of the drawer shell, a supporting block is connected to the heat insulating plate, a heat radiating plate is connected to the supporting block, a heating plate is arranged on the heat radiating plate, the heat sink is arranged on the heating plate, two hundred sixty detection grooves are formed in the heat sink, each pin of the first probe is aligned with each detection groove respectively, one side of the heating plate is connected with a conductor, one end of the conductor, far away from the heating plate, penetrates through the inner wall of the inner groove, one end of a cable is connected to the inner wall of one side, far away from the notch, of the inner groove, the other end of the cable penetrates through the outer portion of the alignment plate, and a temperature sensor is arranged between the heating plate and the heat sink. The heating plate preheats the heat sink, the heat sink is used for heating the PCB aging board in a contact mode, the structure is compact, the heating mode is mainly heat conduction, the temperature uniformity and fluctuation are small, and the temperature sensor can monitor the temperature condition of the heat sink in real time.

Preferably, the protection part comprises a probe mounting plate, the probe mounting plate is arranged on one side of the drawer housing, a second probe is connected to the probe mounting plate, a probe guard plate is symmetrically arranged on one side of the outer wall of the drawer housing, a drawer panel is arranged on the other side of the outer wall of the drawer housing, and a drawer handle is arranged on the drawer panel. The drawer panel is used for sealing and shielding the rack drawer opening during HTRB aging detection, and the drawer handle is convenient for drawing and pushing the drawer housing.

Preferably, the slide is all installed to drawer housing's outer wall both sides, install material loading portion on the slide, material loading portion is including advancing the frame, advance the bottom both sides of frame all to be connected with the slide, two slide sliding connection respectively is at the inner wall of two slides, the plate hole has been seted up to one side of advancing the frame, the inner wall sliding connection of plate hole has the backing plate, the backing plate is laminated with the inner wall of advancing the frame, the backing plate is kept away from one side of advancing the frame and is connected with the helping hand pole, the constant head tank has been seted up to the inner wall bilateral symmetry of advancing the frame, two equal sliding connection of inner wall of constant head tank has the regulating plate, two one side that the regulating plate is close to each other is connected with a yard material frame, the top of advancing the frame is connected with the extension board, the activity runs through on the extension board has the depression bar, the bottom of depression bar is connected with the preforming, elastic connection has the spring three between preforming and the extension board, the top of depression bar is connected with the diaphragm. The PCB ageing boards with the corresponding test quantity are stacked and filled through the stacking frames of the feeding part, so that the pushing frames are pushed to pass through the heat sink by utilizing the slide ways, the PCB ageing boards are pushed to sequentially enter corresponding stations by utilizing the springs III, and then rapid feeding work is realized.

(III) beneficial effects

Compared with the prior art, the HTRB aging test unit provided by the invention has the following beneficial effects:

1. According to the HTRB aging test unit, the first locating pin and the second locating pin are aligned with the corresponding first locating hole and the locating hole, so that the probe locating plate is aligned to the upper portion of the heat sink, the upper cover portion of the drawer is pressed down, three pins on each probe are respectively attached to three detection surfaces on the aligned PCB aging plate, the upper cover portion of the drawer is completely lowered and attached to the heat sink, clamping and fixing of all the PCB aging plates are completed, stability in the detection period is guaranteed, the angle block is pulled by pulling force of the tension spring to drive the support arm to turn over with the rotating shaft as an axis, meanwhile, the other support arm is synchronously driven to turn over by half gear engagement, the sliding rods are driven to slide in the inner walls of the arc holes, meanwhile, the sliding strips are driven to slide in the inner grooves, the clamping blocks are ejected out of the grooves under the elastic force of one ends of the springs, then clamped into the inner walls of the clamping grooves to be limited, the first mounting portion is fixed in a clamping mode through curve movement, the pushing piece is pushed under the elastic force of the second spring, meanwhile, the limiting arm is driven to slide along the sliding grooves to be inserted into the limiting grooves to be limited, and the mounting stability between the rear mounting plate and the alignment plate is guaranteed.

2. According to the HTRB aging test unit, in the electrifying process of the heating plate, the first mounting part and the first butt joint part are spliced, so that the sliding strip is enabled to enter the inner wall of the inner groove to be in contact with the conductor, and meanwhile, the sliding strip and the conductor are both made of copper materials, when the HTRB aging test unit is carried out, the heating plate is spliced by the first mounting part and the first butt joint part to generate a passage to provide heating work, after the test is finished, the upper cover part of the drawer is disassembled, the sliding strip is far away from the inner groove, the passage is disconnected, the problem that the probe II is blocked and still supplies power is solved, the heating plate is automatically powered off, and the safety hidden trouble of daily use is reduced.

3. According to the HTRB aging test unit, the PCB aging board is heated in a contact mode through the heat sink, the contact type heating is adopted, the structure is compact, the heating mode is mainly heat conduction, the temperature uniformity and fluctuation are small, compared with the traditional heating mode, the temperature uniformity and fluctuation are relatively large, the temperature uniformity and the fluctuation are remarkably improved, the temperature in each HTRB aging test unit can be independently controlled through the heating plate, the temperature in each detection unit can be independently controlled, the risk that an abnormal temperature area influences the whole shutdown is avoided, the test fault tolerance is improved, one temperature area is abnormal, and the normal operation of other temperature areas cannot be influenced.

4. This HTRB ageing test unit adopts the overall structure constitution HTRB ageing test unit in this case, possess two hundred sixty stations on the heat sink, can install two hundred sixty PCB ageing boards and carry out ageing test simultaneously, and whole regulator cubicle has twenty detecting element, and five thousand hundred stations altogether are tested simultaneously in an regulator cubicle, very big improvement station capacity for efficiency of software testing improves, and has guaranteed the test accuracy and the stability of every station.

5. This HTRB ageing test unit adopts and the corresponding sign indicating number material frame of a row of station quantity on the heat sink, and sign indicating number material frame moves to the alignment on the first row of station, and the elasticity of spring three makes a PCB ageing board that is lowermost get into first row of station, and so on, realizes the effect of push type material loading through the material loading portion, avoids the manpower to align the station one by one and the loaded down with material loaded down with trivial details process, saves the material loading time, alleviates the complexity and the working strength of manpower material loading, has improved the convenience to the material loading of a large amount of stations.

Drawings

Fig. 1 is a schematic diagram of an overall structure of an HTRB aging test unit according to the present invention.

Fig. 2 is a schematic structural diagram of a drawer housing and a drawer top cover of an HTRB aging test unit according to the present invention.

FIG. 3 is a schematic top view of an HTRB aging test unit drawer top cover according to the present invention.

Fig. 4 is a schematic bottom view of an upper cover of a drawer of an HTRB aging test unit according to the present invention.

Fig. 5 is a schematic structural diagram of a drawer housing and a heating portion of an HTRB aging test unit according to the present invention.

Fig. 6 is an enlarged view of a HTRB burn-in unit according to the present invention, shown in fig. 5.

Fig. 7 is an enlarged view of B in fig. 5 of an HTRB burn-in test unit according to the present invention.

Fig. 8 is a schematic structural diagram of a first mounting portion of an HTRB aging test unit according to the present invention.

Fig. 9 is a schematic structural diagram of a second mounting portion of the HTRB aging test unit according to the present invention.

FIG. 10 is a schematic diagram of the internal structure of a drawer housing of an HTRB aging test unit according to the present invention.

Fig. 11 is a schematic structural diagram of a feeding portion of an HTRB aging test unit according to the present invention.

In the figure: 1. a unit base; 2. a drawer housing; 3. a drawer upper cover part; 31. a side frame; 32. a front mounting plate; 33. a rear mounting plate; 4. a first mounting portion; 41. a rotating shaft; 42. a half gear; 43. a support arm; 44. a clamping piece; 45. a first corner block; 46. a second corner block; 47. a tension spring; 48. a slide bar; 49. a slide bar; 410. a clamping block; 5. a second mounting portion; 51. a spacer block; 52. a connecting rod; 53. pushing the sheet; 54. a second spring; 55. a limiting arm; 56. a limiting hole; 6. a first butt joint part; 61. a first positioning plate; 62. an arc hole; 63. positioning pin I; 64. an alignment plate I; 65. an arc groove; 66. positioning holes I; 7. a second butt joint part; 71. a positioning plate II; 72. a slide hole; 73. a second positioning pin; 74. an alignment plate II; 75. a chute; 76. positioning holes II; 8. a clamping part; 81. an upper cover pressing plate; 82. a product plate; 83. a connector; 84. a probe positioning plate; 9. a heating section; 91. a heat sink; 92. a heat dissipation plate; 93. a heating sheet; 94. a conductor; 95. a cable; 96. a temperature sensor; 97. a support block; 98. a heat insulating plate; 10. a protective part; 101. a probe mounting plate; 102. a second probe; 103. a probe guard plate; 11. a drawer panel; 12. a drawer handle; 13. a slideway; 14. a feeding part; 1401. a pushing frame; 1402. a slide plate; 1403. a backing plate; 1404. a booster rod; 1405. a positioning groove; 1406. an adjusting plate; 1407. a material stacking frame; 1408. a support plate; 1409. a compression bar; 1410. tabletting; 1411. a third spring; 1412. and a transverse plate.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Referring to fig. 1-10, the present invention provides a technical solution: the HTRB aging test unit comprises a unit base 1 and a drawer housing 2, wherein a drawer upper cover part 3 is installed on the drawer housing 2, a first installation part 4 is installed on one side of the drawer upper cover part 3 and used for detachably installing the drawer upper cover part 3 and the drawer housing 2, a second installation part 5 is installed on the other side of the drawer upper cover part 3 and used for locking the drawer upper cover part 3 on the drawer housing 2, a first abutting part 6 is installed on one side of the inner wall of the drawer housing 2 and abutted with the first installation part 4, a second abutting part 7 is installed on the other side of the inner wall of the drawer housing 2 and abutted with the second installation part 5, a clamping part 8 is installed in the drawer upper cover part 3 and used for positioning and clamping and conducting a PCB aging board, a heating part 9 is installed in the drawer housing 2 and used for providing a station for the PCB aging board and heating in contact, and a protection part 10 is installed on one side of the drawer housing 2 and used for protecting a probe.

In the invention, the drawer upper cover part 3 comprises two side frames 31, a front mounting plate 32 and a rear mounting plate 33 are connected between the two side frames 31, a first mounting part 4 comprises a rotating shaft 41, one end of the rotating shaft 41 is rotationally connected to the front mounting plate 32 through a bearing, a half gear 42 is sleeved on the rotating shaft 41, one face of the half gear 42 without teeth is connected with a support arm 43, the top of the support arm 43 is connected with a clamping piece 44, the clamping piece 44 is convenient for an operator to grasp, the problem of hand release is avoided, the side wall of the support arm 43 is connected with a first corner block 45, a second corner block 46 is connected to the front mounting plate 32, a tension spring 47 is connected between the first corner block 45 and the second corner block 46, the tension of the tension spring 47 pulls the first corner block 45 and drives the support arm 43 to turn over by taking the rotating shaft 41 as an axle center, one end bottom of the support arm 43 far away from the half gear 42 is connected with a slide bar 48, one end of the slide bar 48 far away from the support arm 43 is connected with a slide bar 49, one end of the slide bar 49 far away from the slide bar 48 is provided with a groove, the inner wall of the groove is connected with a clamping block 410 in a sliding way, a first spring is elastically connected between the clamping block 410 and the inner wall of the groove, two first installation parts 4 are symmetrically arranged between the two first installation parts 4, two half gears 42 in the two first installation parts 4 are meshed, the first butt joint part 6 comprises a first positioning plate 61, the first positioning plate 61 is installed at the bottom of the product plate 82, the first positioning plate 61, the product plate 82 and the front installation plate 32 are respectively provided with an arc hole 62, the arc holes 62 are communicated, the bottom of the first positioning plate 61 is connected with a first positioning pin 63, the inner wall of the drawer shell 2 is provided with a first positioning plate 64, the first positioning plate 64 is provided with an arc groove 65 corresponding to the arc holes 62, the first positioning plate 64 is provided with a first positioning hole 66 corresponding to the first positioning pin 63, the first positioning hole 66 corresponding to the alignment is convenient for finding a positioning installation point, the slide bar 48 sliding connection is at the inner wall of arc hole 62 and arc groove 65, and the inside groove has been seted up to the inner wall of arc groove 65, and the draw-in groove that corresponds with fixture block 410 has been seted up at the inner wall top of inside groove, and slide bar 49 sliding connection is at the inner wall of arc groove 65 and inside groove.

In this embodiment, the second installation department 5 keeps away from the first installation department 4 and includes the spacer block 51, the spacer block 51 is installed on the rear mounting board 33, two pole holes have been seted up on the spacer block 51, sliding connection has connecting rods 52 respectively on the inner wall in every pole hole, be connected with the ejector pad 53 respectively on the one end that the spacer block 51 was kept away from to every connecting rod 52, elastic connection has the spring two 54 respectively with one side of spacer block 51, the bottom an organic whole of every ejector pad 53 is connected with spacing arm 55, spacing hole 56 has been seted up on every ejector pad 53 respectively, each spacing hole 56 aligns with every pole hole on the spacer block 51 respectively and sets up, the locating plate two 71 are installed in the bottom of rear mounting board 33, sliding connection has all seted up slide hole 72 on rear mounting board 33 and the locating plate two 71, and the intercommunication sets up between the slide hole 72, the bottom of locating plate two 71 is connected with locating pin two 73, the alignment plate two 74 are installed to the inner wall opposite side of drawer housing 2, the spout corresponding with the ejector pad 72 is seted up on the alignment plate two 74, the spout 75, the corresponding spout 75 is driven by the elastic connection of the corresponding spout 53 of the ejector pad 53 and the corresponding to the locating pin 55, the locating pin 75 is located the locating pin 75 and is located the spout 75 and is located the locating pin 75, simultaneously, the locating pin 75 is located in the locating plate 75 is located and is located along the locating slot corresponding to the locating slot 55, the locating slot is located at the locating slot of the locating slot 55 and is located at the locating slot 75.

Notably, the clamping part 8 comprises an upper cover pressing plate 81, the upper cover pressing plate 81 is arranged between the front mounting plate 32 and the rear mounting plate 33, a product plate 82 is arranged between the two side frames 31, the product plate 82 is arranged at the bottom of the front mounting plate 32 and the rear mounting plate 33, two hundred sixty first probes are arranged between the upper cover pressing plate 81 and the product plate 82, three pins are arranged on each first probe, a connector 83 is arranged on one side of the product plate 82, a probe positioning plate 84 is arranged at the bottom of the product plate 82, the pins of each first probe respectively penetrate through the product plate 82 and the probe positioning plate 84, a fuse is arranged on the product plate 82 and is used for breaking the path when a product is in short-circuit and passing, thereby protecting the product plate 82, the heating part 9 comprises a heat sink 91 and a heat insulating plate 98, the heat insulating plate 98 is arranged at the bottom of the inner wall of the drawer housing 2, a supporting block 97 is connected to the heat insulating plate 98, the support block 97 is connected with the heat dissipation plate 92, the heating plate 93 is arranged on the heat dissipation plate 92, the heat sink 91 is arranged on the heating plate 93, two hundred sixty detection grooves are formed on the heat sink 91, pins of each probe I are respectively aligned with each detection groove, the temperature of the PCB aging plates is controlled through the heat sink 91, each PCB aging plate is isolated through the detection grooves, and a heat-dissipating area is isolated through the support block 97, so that the heat insulation plate 98 can effectively isolate heat, service life loss of other structures is reduced, the heat dissipation plate 92 is used for conducting heat to dissipate heat, one side of the heating plate 93 is connected with a conductor 94, one end of the conductor 94 far away from the heating plate 93 penetrates to the inner wall of an inner groove, one side inner wall of the inner groove far away from the notch is connected with one end of a cable 95, the sliding strip 49 enters the inner wall of the inner groove to be contacted with the conductor 94 and simultaneously contacted with the cable 95 to form a passage, the other end of the cable 95 penetrates to the outside of the alignment plate I64, a temperature sensor96 is installed between the heating plate 93 and the heat sink 91.

It is worth noting that, guard 10 includes probe mounting panel 101, probe mounting panel 101 installs in one side of drawer housing 2, be connected with probe two 102 on the probe mounting panel 101, probe backplate 103 is installed to outer wall one side symmetry of drawer housing 2, the problem that the probe bumped when the operating personnel carried the drawer is effectively prevented to probe backplate 103 in both sides, drawer panel 11 is installed to the outer wall opposite side of drawer housing 2, install drawer handle 12 on drawer panel 11, slide 13 is all installed to the outer wall both sides of drawer housing 2, install material loading portion 14 on slide 13, material loading portion 14 includes propulsion frame 1401, propulsion frame 1401 slides the station on heat sink 91, thereby carry out the promotion material loading, the bottom both sides of propulsion frame 1401 all are connected with slide 1402, two slide 1402 are sliding connection respectively at the inner wall of two slide 13, the inner wall sliding connection of propulsion frame 1401 has been seted up 1404, the inner wall sliding connection of plate hole has backing plate 1403, backing plate 1403 and the inner wall laminating of propulsion frame 1401, backing plate 1403 is kept away from the one side of propulsion frame 1408 and is connected with the helping hand pole 1408, the inner wall bilateral symmetry of propulsion frame 1401 has seted up the constant head tank, slide 1403, slide 1405 all installs slide 13 on the slide plate 1407, install the top end of backing plate 1409 is connected with the backing plate 1403 in proper order with the back plate 1409 in the back-up plate hole, the back plate 1409 is connected with the back plate 1409 in proper order, the back plate 1409 is connected with the back plate 1409, the back plate is bent down on the back plate 1409, the back plate is connected with back plate 1409, and has top plate 1409 is connected with back plate 1409.

The unit base 1 belongs to an assembly part on a single-layer rack of an electrical cabinet, the electrical push rod is utilized to realize cabinet in-and-out movement of the drawer housing 2 and the drawer upper cover part 3, the drawer panel 11 is used for sealing and shielding a rack drawer opening during HTRB ageing detection, and the drawer handle 12 is convenient for drawing and pushing the drawer housing 2.

In the scheme, the whole structure forms an HTRB aging test unit, the HTRB aging test unit belongs to one of electrical cabinet detection units, two hundred and sixty stations are arranged on the heat sink 91, two hundred and sixty PCB aging boards can be installed and aging tests are simultaneously carried out, the whole electrical cabinet is provided with twenty detection units, five thousand and two hundred stations are simultaneously tested in one electrical cabinet, the station capacity is improved, and the test efficiency is improved.

The temperature can be independently controlled through the heating plate 93 in each HTRB aging test unit, the independent temperature control in each detection unit is guaranteed, the risk that the whole shutdown is influenced by an abnormal temperature zone is avoided, the fault tolerance of the test is improved, the abnormal temperature zone is avoided, the normal work of other temperature zones is not influenced, the heating plate 93 is adopted to preheat the heat sink 91, the PCB aging board is heated in a contact mode through the heat sink 91, the contact heating is adopted, the structure is compact, the heating mode is mainly heat conduction, the temperature uniformity and fluctuation are small, compared with the traditional heating mode, the heat convection is large in the temperature uniformity and fluctuation, the temperature control is remarkably improved and improved, each PCB aging board is isolated through the detection groove, the heat is isolated through the support block 97, the heat insulation plate 98 can effectively isolate heat, the service life loss of other structures is reduced, and the heat dissipation plate 92 is used for conducting heat to conduct heat to dissipate heat.

The PCB aging board is fully aligned in the detection groove, at the moment, the first positioning pin 63 and the second positioning pin 73 are aligned with the corresponding first positioning hole 66 and the second positioning hole 76, so that the probe positioning board 84 is aligned above the heat sink 91, meanwhile, the two support arms 43 are pressed to be close to each other, the two push plates 53 are pressed to be close to each other, the slide bar 49 is aligned with the arc groove 65, the limiting arm 55 is aligned with the slide groove 75, the upper cover part 3 of the drawer is pressed down, three pins on each probe are respectively attached to three detection surfaces on the aligned PCB aging board, positioning is accurate and efficient, testing precision of all PCB aging boards can be synchronously improved, and the upper cover part 3 of the drawer is completely lowered and attached to the heat sink 91 to clamp and fix all PCB aging boards, so that stability during detection is ensured.

Under the above steps, the pressing support arm 43 and the pushing piece 53 are released, the tension of the tension spring 47 pulls the first corner block 45 and drives the support arm 43 to turn around the rotating shaft 41 as the axis, and simultaneously, the other support arm 43 is synchronously driven to turn around by the meshing of the half gear 42, so that the two support arms 43 are synchronously separated from each other and drive the respective sliding rods 48 to slide on the inner wall of the arc hole 62, simultaneously, the sliding strips 49 are caused to slide in the arc groove 65 to enter the inner groove, the clamping block 410 is extruded by the clamping block 410 and ejected out of the groove under the elasticity of one end of the spring, and then the clamping block 410 is clamped into the inner wall of the clamping groove for limiting, and the first mounting part 4 is clamped and fixed in the first butt joint part 6 through the curved motion, so that the dislocation and the shaking of the upper cover part 3 of the drawer cannot be generated in the XY axial direction.

The push piece 53 is pushed under the elastic force of the second spring 54, and drives the limiting arm 55 to slide along the sliding groove 75 and insert into the limiting groove to be limited and propped against, so that the installation stability between the rear mounting plate 33 and the second alignment plate 74 is ensured, the elastic limit of the first mounting part 4, the first abutting part 6, the second mounting part 5 and the second abutting part 7 replaces the traditional threaded installation, the installation and the disassembly are quick and convenient, and the synchronous and stable abutting installation between the drawer upper cover part 3 and the drawer shell 2 can be promoted while the PCB aging plate is clamped.

The penetrating end of the cable 95 and the lead wire of the temperature sensor96 are welded on the second probe 102, the bottom of the heat sink 91 is provided with a groove for installing the temperature sensor96, the temperature sensor96 can monitor the temperature condition of the heat sink 91 in real time, the needle head of the second probe 102 can be in contact with an internal control power-on circuit of an electrical cabinet when the drawer is pushed, the heating plate 93 and the temperature sensor96 work, a cooling fan is installed in the unit base 1, the cooling fan can blow onto the cooling plate 92 after the aging test is finished, the heat sink 91 and each structure are cooled, the heat insulation plate 98 can not lead the temperature to the drawer housing 2, the drawer panel 11 and the drawer handle 12, scalding of operators is prevented, and as the second probe 102 is exposed, the probe guard plates 103 on two sides effectively prevent the problem of probe collision when the operators carry the drawer.

In the above-mentioned heating plate 93 in the process of energizing, because the first installation department 4 has splice with the first butt joint portion 6, thereby impel the draw runner 49 get into inside groove inner wall and contact with conductor 94, and contact with cable 95 simultaneously and form the passageway, this draw runner 49 and conductor 94 all adopt copper material, possess stable electric connectivity, that is, when carrying out HTRB ageing test unit, the heating plate 93 receives the splice of first installation department 4 and first butt joint portion 6 just can produce the passageway and provide heating work, and after the test is accomplished, dismantle drawer upper cover portion 3 after, draw runner 49 keeps away from the inside groove this moment, so break the passageway, prevent the problem that probe two 102 block still supplied power, let heating plate 93 automatic outage, reduce the potential safety hazard of daily use, slide bar 48 and support arm 43 part all adopt insulating material.

The product board 82 is further provided with a fuse, which is used for breaking the circuit when the product is short-circuited and overflows, so that the product board 82 is protected, and the product board 82 is not repeated in the prior art, and the pins of the first probe are used for contacting with the PCB aging board 82, and are contacted with the product board 82 through the first probe, so that the product board is communicated with the connector 83, HTRB aging test can be performed, and the upper cover pressing board 81 prevents the product board 82 from bending upwards under the action of the force of the probe.

The feeding effect is achieved through the feeding part 14, after the drawer housing 2 is pulled out from the unit base 1, the drawer upper cover part 3 is detached by the first installation part 4 and the second installation part 5, so that the heat sink 91 is exposed, the number of the material stacking frames 1407 corresponds to the number of a row of stations on the heat sink 91, each material stacking frame 1407 is fixedly connected, a plurality of PCB aging boards are stacked in each material stacking frame 1407, as shown in fig. 11, an opening is formed in one side of each material stacking frame 1407, the opening is used for correcting the position of the PCB aging board, each PCB aging board is ensured to be horizontally stacked, the upper and lower openings of the material stacking frames 1407 are respectively formed, the base plate 1403 is used for limiting the bottom of the material stacking frame 1407, the lowest PCB aging board is prevented from falling, after the stacking of the PCB aging boards is completed, the adjusting plate 1406 is slid along the positioning groove 1405, all the material stacking frames 1407 are driven to be simultaneously displaced towards the supporting plate 1408, the transverse plate 1412 is pulled, thereby driving the compression bar 1409 to slide up and compress the spring III 1411, enabling the compression sheet 1410 to be higher than the stacking frame 1407, pushing the compression sheet 1410 to descend into the upper opening of the stacking frame 1407 by means of the elastic force of the spring III 1411, limiting the stacking frame 1407, abutting the stacked PCB aging plates, at the same time, sliding the sliding plate 1402 in the sliding way 13 through the sliding plate 1402, enabling the pushing frame 1401 to drive the stacking frame 1407 to move to the first row of stations to align, enabling the base plate 1403 to prevent the PCB aging plates from falling into gaps between structures, then utilizing the power-assisted rod 1404 to extract the base plate 1403, enabling the lower opening of the stacking frame 1407 to be exposed on the heat sink 91, pushing the compression sheet 1410 by the elastic force of the spring III 1411, extruding the stacked PCB aging plates, enabling the lowest PCB aging plate to enter the first row of stations, enabling the second PCB aging plates to slide down to be attached to the first PCB aging plates, enabling the pushing frame 1401 to continue pushing movement, the second PCB aging board is pushed into the second row of stations under the elasticity of the third spring 1411, the effect of quick loading is achieved by adopting the mode and the like, after loading is finished, the pushing frame 1401 is pulled to reset to one side of the drawer housing 2, which is close to the drawer panel 11, and the backing plate 1403 is inserted from the plate hole again, so that the second loading operation is prepared until all stations are fully paved with the PCB aging board.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Claims (10)

1. HTRB aging test unit, including unit base (1) and drawer housing (2), its characterized in that: the drawer housing (2) is provided with a drawer upper cover part (3);

The first installation part (4) is installed on one side of the drawer upper cover part (3) and is used for detachably installing the drawer upper cover part (3) and the drawer shell (2);

A second mounting part (5) which is mounted on the other side of the drawer upper cover part (3) and locks the drawer upper cover part (3) on the drawer housing (2);

A first abutting part (6) which is installed on one side of the inner wall of the drawer housing (2) and abuts against the first installation part (4);

a second butt joint part (7) which is arranged on the other side of the inner wall of the drawer housing (2) and is in butt joint with the second installation part (5);

the clamping part (8) is arranged in the drawer upper cover part (3) and is used for positioning, clamping and conducting the PCB aging board;

A heating part (9) which is arranged in the drawer housing (2) and is used for providing stations for the PCB burn-in board and contacting and heating;

And the protection part (10) is arranged on one side of the drawer housing (2) and is used for protecting the probe.

2. The HTRB aging test unit according to claim 1, wherein: drawer upper cover portion (3) include two side bearer (31), two be connected with preceding mounting panel (32) and rear mounting panel (33) between side bearer (31), first installation department (4) are including pivot (41), the one end of pivot (41) is passed through the bearing and is rotated and connect on preceding mounting panel (32), the cover is equipped with half gear (42) on pivot (41), half gear (42) are connected with support arm (43) in the one side of no tooth, the top of support arm (43) is connected with clamping piece (44).

3. The HTRB aging test unit according to claim 2, wherein: the side wall of support arm (43) is connected with angle block one (45), be connected with angle block two (46) on preceding mounting panel (32), be connected with extension spring (47) between angle block one (45) and the angle block two (46), the one end bottom that half gear (42) was kept away from to support arm (43) is connected with slide bar (48), be connected with slide bar (49) on the one end that support arm (43) was kept away from to slide bar (48), the slide bar (49) is kept away from on the one end of slide bar (48) and is seted up flutedly, the inner wall sliding connection of recess has fixture block (410), elastic connection has spring one between fixture block (410) and the recess inner wall, the quantity of first installation department (4) has two, two between first installation department (4) symmetry set up, two mesh between two half gears (42) in first installation department (4).

4. The HTRB aging test unit according to claim 3, wherein: the second installation department (5) keep away from first installation department (4) and include spacer (51), spacer (51) are installed on rear mounting panel (33), two pole holes have been seted up on spacer (51), every the inner wall in pole hole is sliding connection respectively has connecting rod (52), every on the one end that spacer (51) was kept away from to connecting rod (52) is connected with ejector pad (53) respectively, every ejector pad (53) are connected with spring two (54) with one side of spacer (51) respectively elasticity, every the bottom an organic whole of ejector pad (53) is connected with spacing arm (55), every spacing hole (56) have been seted up respectively on ejector pad (53), every spacing hole (56) are aligned with every pole hole on spacer (51) respectively.

5. The HTRB aging test unit according to claim 4, wherein: clamping part (8) are including upper cover clamp plate (81), upper cover clamp plate (81) are installed between preceding mounting panel (32) and back mounting panel (33), two install product board (82) between side bearer (31), product board (82) are located preceding mounting panel (32) and back mounting panel (33) bottom, be provided with two hundred sixty probe one between upper cover clamp plate (81) and product board (82), every be provided with three stitch on the probe one, connector (83) are installed to one side of product board (82), probe locating plate (84) are installed to the bottom of product board (82), every the stitch of probe one is movable respectively runs through product board (82) and probe locating plate (84).

6. The HTRB aging test unit according to claim 5, wherein: the first butt joint portion (6) comprises a first locating plate (61), the first locating plate (61) is arranged at the bottom of a product plate (82), the first locating plate (61), the product plate (82) and a front mounting plate (32) are provided with arc holes (62), the arc holes (62) are communicated, the bottom of the first locating plate (61) is connected with a first locating pin (63), the inner wall of the drawer housing (2) is provided with a first locating plate (64), the first locating plate (64) is provided with an arc groove (65) corresponding to the arc holes (62), the first locating plate (64) is provided with a first locating hole (66) corresponding to the first locating pin (63), the sliding rod (48) is connected with the inner wall of the arc holes (62) and the arc groove (65) in a sliding mode, an inner groove is formed in the inner wall of the arc groove (65), the top of the inner wall of the inner groove is provided with a clamping block (410), and the sliding strip (49) is connected with the inner wall of the arc groove (65) and the inner groove in a sliding mode.

7. The HTRB aging test unit of claim 6, wherein: the second butt joint portion (7) comprises a locating plate II (71), the locating plate II (71) is arranged at the bottom of the rear mounting plate (33), sliding holes (72) are formed in the rear mounting plate (33) and the locating plate II (71) in a sliding mode, the sliding holes (72) are communicated, a locating pin II (73) is connected to the bottom of the locating plate II (71), a locating plate II (74) is arranged on the other side of the inner wall of the drawer housing (2), a sliding groove (75) corresponding to the sliding holes (72) is formed in the locating plate II (74), a locating hole II (76) corresponding to the locating pin II (73) is formed in the locating plate II (74), the limiting arm (55) is of an L-shaped structure, the limiting arm (55) is connected to the inner wall of the sliding holes (72) and the sliding grooves (75) in a sliding mode, and the limiting groove is formed in the inner wall of the sliding grooves (75), and one end, far away from the pushing piece (53), of the limiting arm (55) is inserted into the limiting grooves.

8. The HTRB aging test unit of claim 7, wherein: the heating part (9) comprises a heat sink (91) and a heat insulating plate (98), the heat insulating plate (98) is installed at the bottom of the inner wall of the drawer housing (2), a supporting block (97) is connected to the heat insulating plate (98), a heat radiating plate (92) is connected to the supporting block (97), a heating plate (93) is installed on the heat radiating plate (92), two hundred sixty detection grooves are formed in the heat sink (91), each stitch of the probe one is aligned with each detection groove respectively, one side of the heating plate (93) is connected with a conductor (94), one end of the conductor (94) away from the heating plate (93) penetrates through the inner wall of the inner groove, one side inner wall of the inner groove away from the notch is connected with one end of a cable (95), the other end of the cable (95) penetrates through the outer portion of the alignment plate one (64), and a temperature sensor (96) is installed between the heating plate (93) and the heat sink (91).

9. The HTRB aging test unit according to claim 8, wherein: the protection part (10) comprises a probe mounting plate (101), the probe mounting plate (101) is mounted on one side of the drawer housing (2), a probe II (102) is connected to the probe mounting plate (101), a probe guard plate (103) is symmetrically mounted on one side of the outer wall of the drawer housing (2), a drawer panel (11) is mounted on the other side of the outer wall of the drawer housing (2), and a drawer handle (12) is mounted on the drawer panel (11).

10. The HTRB aging test unit of claim 9, wherein: slide (13) are all installed to outer wall both sides of drawer housing (2), install material loading portion (14) on slide (13), material loading portion (14) are including advancing frame (1401), the bottom both sides of advancing frame (1401) all are connected with slide (1402), two slide (1402) sliding connection respectively is at the inner wall of two slides (13), the diaphragm orifice has been seted up to one side of advancing frame (1401), the inner wall sliding connection of diaphragm orifice has backing plate (1403), backing plate (1403) are laminated with the inner wall of advancing frame (1401), backing plate (1403) keep away from one side of advancing frame (1401) and are connected with booster rod (1404), locating slot (1405) have been seted up to the inner wall bilateral symmetry of advancing frame (1401), two the inner wall of locating slot (1405) all sliding connection has regulating plate (1406), two one side that regulating plate (1406) are close to each other is connected with sign indicating number material frame (1407), the top of advancing frame (1401) is connected with extension board (1408), on extension board (1409), one side that is connected with compression bar (1409), extension board (1412) have compression bar (1412), compression bar (1412) are connected with compression bar (1412).