CN210514395U

CN210514395U - Constant temperature and pressure test box for chip test

Info

Publication number: CN210514395U
Application number: CN201921306944.6U
Authority: CN
Inventors: 黄晓波
Original assignee: Anhui Longxin Microtechnology Co ltd
Current assignee: Anhui Longxin Microtechnology Co ltd
Priority date: 2019-08-13
Filing date: 2019-08-13
Publication date: 2020-05-12
Anticipated expiration: 2029-08-13

Abstract

The utility model discloses a constant temperature and pressure test box for chip testing, including box, chamber door, box and chamber door constitute by the stainless steel layer and the intermediate level heat preservation of ectonexine, and the electric fan is installed on the inside top of box, and the inside bottom inner wall of box is equipped with the riser, and riser top fixed connection diaphragm is equipped with a plurality of heat transfer holes on riser and the diaphragm, and the inside bottom of box is equipped with the motor, and through the ejector pin, the motor drives the rotation of top test panel; a pressure gauge, a thermometer and a plurality of ventilation pipes are arranged outside the box body, sealant is coated between the outer wall of the box body and the outer wall of the box body, and sealing rings are arranged on the lower surface of the ventilation pipe cover and the periphery of the inner surface of the box door; the constant temperature and constant pressure test box for the chip test has the advantages that the heat preservation effect is good through the combined use of the heat preservation layer, the sealing ring and the sealing glue, the sealing performance is good, and heat can be uniformly sent into the test box through the vertical plate, the transverse plate and the heat transfer holes in the transverse plate when the heat is heated.

Description

Constant temperature and pressure test box for chip test

Technical Field

The utility model relates to a constant temperature and constant pressure test case field, concretely relates to chip test is with constant temperature and constant pressure test case.

Background

The constant temperature and constant pressure test box is necessary test equipment in the fields of aviation, automobiles, household appliances, scientific research and the like, is used for testing and determining electricians, electronics and other products and materials, and is used for observing the change of the performance, parameters and appearance of the product when the product is in an environment with the change of high temperature, low temperature, constant pressure or constant test temperature environment, so that a more scientific and reliable product is provided for enterprises.

The patent of application number 200620110866.9 discloses a constant temperature test case, aims at providing a constant temperature test case that enables the temperature uniformity of the interior studio of box and reach ideal technical index, and it includes box, studio, evaporimeter, compressor that constitute by inner bag and shell and the spiral case air-blast heating device who comprises spiral case, motor, centrifugal fan and heating member, spiral case air-blast heating device's heating member is arranged in the central part of spiral case and centrifugal fan, and it can make the heat that the heating pipe sent, through the centrifugal fan intensive mixing back, passes to the studio. The heating position is only heated from the inner wall of the upper end of the box body, the heating is not uniform, and the temperature and the pressure of the upper end and the lower end are different; (2) the heat preservation effect is poor, the heat in the box body is easy to transfer to the outside of the box body, and the temperature in the box body is unstable; (3) the test box has poor sealing performance and unstable pressure in the box body.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a chip test is with constant temperature and pressure test case has solved following problem: (1) the electric heating fan is arranged on the inner wall of the top end of the box body, the vertical plate is arranged on the inner wall of the bottom end of the box body, the top end of the vertical plate is connected to the transverse plate, and the vertical plate and the transverse plate are both provided with a plurality of heat transfer holes, so that the heating position is changed from the inner wall of the upper end of the box body to the inner wall of the upper end and the inner walls of two sides of the box body simultaneously to heat the interior of the box body, a stable hot air circulation is formed; (2) the test box solves the problem that heat in the box body is transferred to the outside of the box body by arranging the box body which consists of the stainless steel layers of the inner layer and the outer layer and the heat-insulating layer of the middle layer; (3) seal rings are arranged on the surfaces of the box door and the vent pipe cover, and seal glue is coated between the pressure gauge, the thermometer and the outer wall of the vent pipe and the box body, so that the problem of poor sealing performance of the box body is solved.

The purpose of the utility model can be realized by the following technical scheme:

the utility model provides a constant temperature and pressure test box for chip testing, which comprises a box body, a box door and a test tray, wherein a plurality of electric heating fans are fixedly installed on the inner wall of the top end of the box body;

the inner wall of the bottom end of the box body is provided with a motor, an output shaft of the motor extends upwards to be connected with a mandril, the mandril penetrates through the axis of the test disc and is arranged at the outer edge of the upper end surface of the test disc;

a pressure gauge penetrates through one side of the top end of the box body, and a thermometer penetrates through one side of the top end of the box body, which is far away from the pressure gauge;

the top of the box body is provided with a plurality of ventilation pipes in a penetrating mode, the top end of each ventilation pipe is connected with a ventilation pipe cover, and the axle center of each ventilation pipe cover is connected with an exhaust pipe in a penetrating mode.

Furthermore, the box body and the box door are both composed of an inner stainless steel layer and an outer stainless steel layer and a middle heat insulation layer, the heat insulation layer is composed of aluminum silicate heat insulation materials, a sealing ring is arranged on the periphery of one side of the box door, two hinges are fixedly mounted on one side of the box body through screws, the box door is connected with the box body through the hinges, and the vertical plate and the transverse plate are both composed of stainless steel materials.

Further, sealant is coated between the outer wall of the pressure gauge and the box body, sealant is coated between the outer wall of the thermometer and the box body, and the length of the lower end of the thermometer extending into the box body reaches 3-5 cm.

Furthermore, a sealant is coated between the outer wall of the vent pipe and the box body, an exhaust pipe valve is installed in the exhaust pipe in a penetrating mode, and a sealing ring is fixedly installed at the bottom of the vent pipe cover.

The utility model has the advantages that:

(1) the utility model discloses a constant temperature and pressure test box is used in chip test, through being equipped with electric fan at box top inner wall, the bottom inner wall is equipped with the riser, the riser top is connected to the diaphragm, a plurality of heat transfer holes have all been opened on riser and diaphragm, make the position of heating only become from box upper end inner wall to heat the box inside from upper end inner wall and both sides inner wall simultaneously, steady heated air circulation has been formed, uniform heating has been realized, directly heat up to the box inside when avoiding electric fan to heat, lead to the difference of upper and lower end temperature, pressure, be equipped with the motor at box bottom inner wall simultaneously, motor output shaft drives ejector pin upper end test panel and rotates, make every position on the chip all be in same temperature and pressure inside the box;

(2) the constant temperature and pressure test box for chip test of the utility model has the advantages that the box body consisting of the stainless steel layers of the inner layer and the outer layer and the heat preservation layer of the middle layer is arranged, heat is prevented from being continuously transferred outwards at the heat preservation layer, the transfer of heat in the box body to the outside of the box body can be reduced, and the temperature in the box body is kept stable and unchanged;

(3) the utility model discloses a constant temperature and pressure proof box is used in chip test through at chamber door and vent pipe lid surface mounting sealing washer, sealed glue of coating between manometer, thermometer and vent pipe outer wall and box for inside becoming a closed environment of whole proof box, the leakproofness is good, and effectual maintenance box internal pressure stability is unchangeable.

Drawings

The present invention will be further described with reference to the accompanying drawings;

fig. 1 is a schematic structural view of a constant temperature and constant pressure test chamber for chip testing according to the present invention;

FIG. 2 is an enlarged schematic view of a heat transfer hole of the present invention;

FIG. 3 is a top view of a test tray according to the present invention;

FIG. 4 is a schematic view of the electric heating fan of the present invention;

FIG. 5 is a schematic view of the assembly structure of the vent pipe cover and the vent pipe according to the present invention;

fig. 6 is a partial schematic view of the cross section at a-a of the present invention.

In the figure: 1. a box body; 11. a stainless steel layer; 12. a heat-insulating layer; 2. a box door; 21. a hinge; 22. a seal ring; 31. a heat transfer aperture; 32. a filter screen; 33. a vertical plate; 34. a transverse plate; 4. a motor; 41. a top rod; 5. a test tray; 51. an annular plate; 6. a pressure gauge; 7. an electric heating fan; 8. a vent pipe; 81. sealing glue; 9. a vent tube cover; 91. an exhaust pipe valve; 92. an exhaust pipe; 10. a thermometer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-6, the utility model provides a constant temperature and pressure test box for chip testing, comprising a box body 1, a box door 2, a test tray 5, a plurality of electric heating fans 7 are fixedly installed on the inner wall of the top end of the box body 1, two vertical plates 33 are vertically arranged in the inner cavity of the box body 1 near the side wall, the top ends of the two vertical plates 33 are connected with a horizontal plate 34, a plurality of heat transfer holes 31 are arranged on the vertical plates 33 and the horizontal plate 34, a filter screen 32 is arranged in each heat transfer hole 31, the electric heating fans 7 are arranged on the inner wall of the top end of the box body, the inner wall of the bottom end is provided with the vertical plate 33, the top end of the vertical plate 33 is connected to the horizontal plate 34, a plurality of heat transfer holes 31 are arranged on the vertical plate 33 and the horizontal plate 34, so that the heating position is changed from the inner wall of, an output shaft of the motor 4 is upwards extended and connected with an ejector rod 41, the ejector rod 41 is installed at the axis of the test disc 5 in a penetrating mode, an annular plate 51 is arranged on the outer edge of the upper end face of the test disc 5 to prevent a chip from falling off the test disc 5, a pressure gauge 6 is installed on one side of the top end of the box body 1 in a penetrating mode, a thermometer 10 is installed on the side, far away from the pressure gauge 6, of the top end of the box body 1 in a penetrating mode, the internal pressure and temperature of the box body are judged by observing data displayed by the pressure gauge 6 and the;

specifically, a plurality of ventilation pipes 8 are installed on the top of a box body 1 in a penetrating manner, a ventilation pipe cover 9 is connected to the top end of each ventilation pipe 8, an exhaust pipe 92 is connected to the axis of each ventilation pipe cover 9 in a penetrating manner, each box body 1 and each box door 2 are composed of an inner stainless steel layer 11 and an outer stainless steel layer 11 and a middle heat insulation layer 12, each heat insulation layer 12 is composed of aluminum silicate heat insulation materials, the box body 1 formed in the penetrating manner enables heat inside the box body to be reduced at the position of each heat insulation layer 12 and transmitted to the outside of the box body, a sealing ring 22 is arranged on the periphery of one side of each box door 2, two hinges 21 are fixedly installed on one side of the box body 1 through screws, each box door 2 is connected with the box body 1 through each hinge 21, each vertical plate 33 and each transverse plate 34 are composed of stainless steel materials, through at chamber door 2 and vent pipe lid 9 surface mounting sealing washer 22, coating sealed glue 81 between manometer 6, thermometer 10 and vent pipe 8 outer wall and box 1 for inside becoming a closed environment, the leakproofness is good of whole proof box 1.

Referring to fig. 1 to 6, the constant temperature and pressure test chamber for testing chips of this embodiment operates as follows:

(1) placing the chip on a test disc 5, closing a box door 2, tightly connecting the box door 2 with a box body 1 through a sealing ring 22 on the box door 2, then installing a ventilation pipe cover 9, and fixedly connecting the ventilation pipe cover 9 to the upper end of a ventilation pipe 8 through a hook and the sealing ring 22 on the ventilation pipe cover;

(2) the motor 4 starts to rotate, the ejector rod 41 connected with the output shaft and the upper end test disc 5 are driven by the output shaft to rotate along with the rotation of the ejector rod, the upper end test disc 5 is driven by the output shaft, the electric heating fan 7 is turned on, high-temperature air can be released by the electric heating fan 7, the high-temperature air is uniformly sent into the test box through the plurality of heat transfer holes 31 formed in the vertical plate 33 and the transverse plate 34, the temperature inside the box body 1 is raised, the thermometer 10 and the pressure gauge 6 are used for observation, when the actual temperature reaches the preset temperature of 80-120 ℃, and when the actual pressure reaches the preset pressure of 700 and 1200KPa, the electric; after the temperature of the interior of the box body 1 is raised for a period of time, when a certain temperature reduction is needed, the ventilation pipe 8 can be opened for rapid temperature reduction, and the temperature and the pressure in the box body 1 can be slowly changed by opening the exhaust pipe valve 91 on the exhaust pipe 92.

The foregoing is merely exemplary and illustrative of the structure of the invention, and various modifications, additions and substitutions as described in the detailed description may be made by those skilled in the art without departing from the structure or exceeding the scope of the invention as defined in the claims.

Claims

1. The constant-temperature and constant-pressure test box for the chip test is characterized by comprising a box body (1), a box door (2) and a test disc (5), wherein a plurality of electric heating fans (7) are fixedly installed on the inner wall of the top end of the box body (1), two vertical plates (33) are vertically arranged at the positions, close to the side wall, of the inner cavity of the box body (1), the top ends of the two vertical plates (33) are connected with a transverse plate (34), a plurality of heat transfer holes (31) are formed in the vertical plates (33) and the transverse plate (34), and a filter screen (32) is arranged in each heat;

the inner wall of the bottom end of the box body (1) is provided with a motor (4), an output shaft of the motor (4) extends upwards to be connected with a push rod (41), the push rod (41) penetrates through the axis of the test disc (5), and the outer edge of the upper end face of the test disc (5) is provided with an annular plate (51);

a pressure gauge (6) penetrates through one side of the top end of the box body (1), and a thermometer (10) penetrates through one side, far away from the pressure gauge (6), of the top end of the box body (1);

the top of the box body (1) is provided with a plurality of ventilation pipes (8) in a penetrating mode, the top ends of the ventilation pipes (8) are connected with ventilation pipe covers (9), and the axle centers of the ventilation pipe covers (9) are connected with exhaust pipes (92) in a penetrating mode.

2. The constant temperature and constant pressure test chamber for the chip test is characterized in that the chamber body (1) and the chamber door (2) are both composed of an inner stainless steel layer (11) and an outer stainless steel layer (12) and an intermediate insulating layer (12), the insulating layer (12) is composed of aluminum silicate insulating material, a sealing ring (22) is arranged around one side of the chamber door (2), two hinges (21) are fixedly arranged on one side of the chamber body (1) through screws, the chamber door (2) is connected with the chamber body (1) through the hinges (21), and the vertical plate (33) and the horizontal plate (34) are both composed of stainless steel material.

3. The constant temperature and constant pressure test chamber for the chip test according to claim 1, wherein a sealant (81) is coated between the outer wall of the pressure gauge (6) and the chamber body (1), a sealant (81) is coated between the outer wall of the thermometer (10) and the chamber body (1), and the length of the lower end of the thermometer (10) extending into the chamber body (1) is 3-5 cm.

4. The constant-temperature and constant-pressure test chamber for the chip test is characterized in that a sealant (81) is coated between the outer wall of the vent pipe (8) and the box body (1), a vent pipe valve (91) is penetratingly arranged on the vent pipe (92), and a sealing ring (22) is fixedly arranged at the bottom of the vent pipe cover (9).