CN212965273U

CN212965273U - Power MOS temperature impact test device

Info

Publication number: CN212965273U
Application number: CN202022096852.9U
Authority: CN
Inventors: 王壮权
Original assignee: Tianjin Lushi Technology Co ltd
Current assignee: Tianjin Lushi Technology Co ltd
Priority date: 2020-09-22
Filing date: 2020-09-22
Publication date: 2021-04-13
Anticipated expiration: 2030-09-22

Abstract

The utility model provides a power MOS temperature impact test device, including proof box, blender, control cabinet, backward flow mechanism, high temperature mechanism and low temperature mechanism, install the blender on the proof box, proof box one side sets up the control cabinet, proof box lower extreme fixed connection is to the one end of backward flow mechanism, the other end of backward flow mechanism is fixed connection to the one end of high temperature mechanism respectively, the one end of low temperature mechanism, the other end fixed connection of high temperature mechanism's first end to the blender, the one end of low temperature structure cup joints to the periphery of blender, the second end installation spray tube of blender, and the inside of blender passes through spray tube communicates to inside the proof box. A power MOS temperature impact test device, heating device and refrigerating plant store the fluid of predetermined temperature respectively, treat that the impact temperature who sets for is realized through the aperture of controller allotment solenoid valve after the experiment begins, impact effect is stable, test data is accurate.

Description

Power MOS temperature impact test device

Technical Field

The utility model belongs to the technical field of test equipment, especially, relate to a power MOS temperature impact test device.

Background

The temperature tester is used for testing various performance indexes of parts and materials of related products such as electronics, electricians, automobiles, motorcycles, aerospace, rubber, plastics, metals, ships, weapons, universities, research institutions and the like under the condition of high temperature and constant temperature change. Because the air thermal resistance is high, a large radiator and a clamp are required to be used for a medium-high power device to ensure that the device does not exceed the temperature under the high-power load; when the air flow is constant, the temperature rise and fall speed is slow due to high air thermal resistance, and the quick impact cannot be realized.

Disclosure of Invention

In view of this, the present invention is directed to a power MOS temperature impact testing apparatus to solve the problems of the prior art.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

the utility model provides a power MOS temperature impact test device, the proof box comprises a test box, the blender, the control cabinet, backward flow mechanism, high temperature mechanism and low temperature mechanism, install the blender on the proof box, proof box one side sets up the control cabinet, proof box lower extreme fixed connection is to the one end of backward flow mechanism, the other end difference fixed connection of backward flow mechanism is the one end of high temperature mechanism, the one end of low temperature mechanism, the other end fixed connection of high temperature mechanism to the first end of blender, the one end of low temperature structure cup joints to the periphery of blender, the second end installation hydrojet pipe of blender, and the inside of blender passes through hydrojet pipe communicates to the proof box inside, backward flow mechanism, the equal signal connection of high temperature mechanism and low temperature mechanism to the control cabinet, control cabinet external circuit.

Further, the backward flow mechanism includes first body, the oil transfer pump, the second body, first solenoid valve, third body and second solenoid valve, the bottom of first body one end fixed connection to proof box, the other end fixed connection to the one end of oil transfer pump of first body, and inside intercommunication to the proof box inside through first body of oil transfer pump, the other end of oil transfer pump is fixed connection to the one end of second body respectively, the one end of third body, the other end fixed connection to high temperature mechanism of second body, the other end fixed connection to low temperature mechanism of third body, install first solenoid valve on the second body, install the second solenoid valve on the third body, the oil transfer pump, the equal signal connection of first solenoid valve and second solenoid valve is to the control cabinet.

Further, high temperature mechanism is including heating oil stove, first booster pump, fourth body, first correlation sensor and third solenoid valve, the one end fixed connection of second body is to the income oil end of heating oil stove, the one end of the end of producing oil of heating oil stove is passed through the one end of tube coupling to first booster pump, the other end of first booster pump passes through the one end of fourth body fixed connection to blender, install the third solenoid valve on the fourth body, install first correlation sensor in the oil tank in the heating oil stove, first correlation sensor, the equal signal connection of first booster pump and third solenoid valve to control cabinet.

Further, the low temperature mechanism includes oil water cooler, the second booster pump, the fifth body, second correlation sensor and fourth solenoid valve, the one end fixed connection of third body goes into oil end to oil water cooler, oil water cooler's the one end that goes out oil end through tube coupling to second booster pump, the other end of second booster pump passes through the periphery of fifth body fixed connection to blender, install the fourth solenoid valve on the fifth body, install the second correlation sensor in the oil tank in the oil water cooler, the second correlation sensor, the equal signal connection of second booster pump and fourth solenoid valve to control cabinet.

Further, the blender includes mixed box and branch oil jacket, mixes the box and installs to the proof box upper end, mixes the one end fixed connection of box one end to the one end of fourth body, the other end of mixing the box passes through the spray pipe communicates to the proof box inside, the branch oil jacket is three-dimensional groove structure, divides oil jacket one end fixed connection to mix the box peripheral, divides oil jacket other end fixed connection to the one end of fifth body, is equipped with a plurality of oil leakages on the mixing box lateral wall that the branch oil jacket corresponds, oil cooler's play oil end loops through second booster pump, fifth body, branch oil jacket and a plurality of oil leakages communicate to inside the mixing box.

Furthermore, the mixer further comprises a diffusion platen which is of a wheel rotating structure, the cross section of the inner wall of the mixing box body is of a circular structure, and the diffusion platen is uniformly distributed on the inner wall of the mixing box body along the circumferential direction.

Compared with the prior art, a power MOS temperature impact test device have following advantage:

(1) a power MOS temperature impact test device, heating device and refrigerating plant store the fluid of predetermined temperature respectively, treat that the impact temperature who sets for is realized through the aperture of controller allotment solenoid valve after the experiment begins, impact effect is stable, test data is accurate.

(2) A power MOS temperature impact test device, dispel the heat or heat the device as the medium with liquid, for high power device's impact test provides more quick lift temperature curve, and when doing the high low temperature experiment to high power device, can reduce the volume of anchor clamps and radiator, application scope is extensive, and experimental cost is low.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

fig. 1 is a schematic structural view of a power MOS temperature impact test apparatus according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a backflow mechanism according to an embodiment of the present invention;

fig. 3 is a schematic diagram of an explosive structure of a mixer according to an embodiment of the present invention;

description of reference numerals:

1-test chamber 1; 2-a mixer; 21-mixing the box body; 22-oil separation sleeve; 23-a diffusion platen; 3-a console; 4-a reflux mechanism; 41-a first tube; 42-an oil transfer pump; 43-a second tube; 44-a first solenoid valve; 45-a third tube; 46-a second solenoid valve; 5-a high temperature mechanism; 51-heating oil furnace; 52-a first booster pump; 53-a fourth tube; 54-a third solenoid valve; 6-a low temperature mechanism; 61-oil water cooler; 62-a second booster pump; 63-a fifth tube; 64-fourth solenoid valve.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

As shown in fig. 1-2, a power MOS temperature impact test device comprises a test box 1, a mixer 2, a console 3, a backflow mechanism 4, a high temperature mechanism 5 and a low temperature mechanism 6, wherein a material frame is arranged in the test box 1, a device to be tested is placed on the material frame, the mixer 2 is arranged at the upper end of the test box 1, the console 3 is arranged at one side of the test box 1, the lower end of the test box 1 is fixedly connected to one end of the backflow mechanism 4, the other end of the backflow mechanism 4 is respectively fixedly connected to one end of the high temperature mechanism 5 and one end of the low temperature mechanism 6, the other end of the high temperature mechanism 5 is fixedly connected to the first end of the mixer 2, one end of the low temperature mechanism is sleeved to the periphery of the mixer 2, a liquid spraying pipe is arranged at the second end of the mixer 2, the interior of the mixer 2 is communicated to the interior of the test box 1 through the liquid spraying, the control console 3 comprises a touch screen, a box body and a controller, the box body is installed on one side of the test box 1, the touch screen is installed on the box body, a PLC (programmable logic controller) is arranged in the box body, the model of the controller is Siemens S7-200smart, the backflow mechanism 4, the high-temperature mechanism 5, the low-temperature mechanism 6 and the touch screen are all in signal connection with the controller, and the controller is externally connected with a circuit.

The backflow mechanism 4 comprisesA first pipe body 41, an oil transfer pump 42,A second pipe body 43,A first electromagnetic valve 44,A third pipe body 45 andA second electromagnetic valve 46, one end of the first pipe body 41 is fixedly connected to the bottom end of the test box 1, the other end of the first pipe body 41 is fixedly connected to one end of the oil transfer pump 42, the interior of the oil transfer pump 42 is communicated to the interior of the test box 1 through the first pipe body 41, the oil transfer pump 42 isA CYZ-A type self-priming centrifugal oil pump, the other end of the oil transfer pump 42 is respectively fixedly connected to one end of the second pipe body 43 and one end of the third pipe body 45, the other end of the second pipe body 43 is fixedly connected to the high-temperature mechanism 5, the other end of the third pipe body 45 is fixedly connected to the low-temperature mechanism 6, the first electromagnetic valve 44 is installed on the second pipe body 43, the second electromagnetic valve 46 is installed on the third pipe body 45, the oil in the test box 1 sequentially passes through the first pipe body 41, the oil transfer pump 42, the second pipe body 43 and the third pipe body 45 and flows back to the high-temperature mechanism 5 and the low-temperature mechanism 6 to form a circulating system of the impact oil.

The high-temperature mechanism 5 comprises a heating oil furnace 51, a first booster pump 52, a fourth pipe body 53, a first correlation sensor and a third electromagnetic valve 54, one end of the second pipe body 43 is fixedly connected to an oil inlet end of the heating oil furnace 51, the heating oil furnace 51 is a 48KW heat conduction oil furnace, a heat medium output outwards by the heating oil furnace 51 is impact oil, the impact oil can be rapidly heated at 40-100 ℃, an oil outlet end of the heating oil furnace 51 is connected to one end of the first booster pump 52 through a pipeline, the other end of the first booster pump 52 is fixedly connected to one end of the mixer 2 through the fourth pipe body 53, the fourth pipe body 53 is provided with the third electromagnetic valve 54, the first correlation sensor is arranged in an oil tank in the heating oil furnace 51, and the heating oil furnace 51, the first correlation sensor, the first booster pump 52 and the third electromagnetic valve 54 are all connected to the console 3 through signals; the low-temperature mechanism 6 comprises an oil-water cooler 61, a second booster pump 62, a fifth pipe body 63, a second correlation sensor and a fourth electromagnetic valve 64, one end of the third pipe body 45 is fixedly connected to the oil inlet end of the oil-water cooler 61, the oil-water cooler 61 is a BR plate cooler, the medium of the oil-water cooler 61 going out is impact oil, the rapid cooling of the impact oil at 0-40 ℃ can be realized, the oil outlet end of the oil-water cooler 61 is connected to one end of the second booster pump 62 through a pipeline, the other end of the second booster pump 62 is fixedly connected to the periphery of the mixer 2 through the fifth pipe body 63, the fifth pipe body 63 is provided with the fourth electromagnetic valve 64, the second correlation sensor is arranged in an oil tank in the oil-water cooler 61, the second correlation sensor, the second booster pump 62 and the fourth electromagnetic valve 64 are in signal connection with a controller, the models of the first correlation sensor and the second correlation sensor are both E3F-20L/20C, the controller can adjust the opening degree of the third electromagnetic valve 54 and the fourth electromagnetic valve 64 according to the set temperature value, the effect of controlling the temperature of the impact oil liquid is achieved by adjusting the proportion of the cold and hot impact oil liquid, and the first electromagnetic valve 44, the second electromagnetic valve 46, the third electromagnetic valve 54 and the fourth electromagnetic valve 64 all adopt the Denfoss EVR.

As shown in fig. 3, the mixer 2 includes a mixing box 21 and an oil distributing sleeve 22, the mixing box 21 is mounted on the upper end of the test chamber 1, one end of the mixing box 21 is fixedly connected to one end of a fourth tube 53, the other end of the mixing box 21 is communicated to the inside of the test chamber 1 through the liquid spraying tube, the oil distributing sleeve 22 is a three-dimensional groove structure, one end of the oil distributing sleeve 22 is fixedly connected to the periphery of the mixing box 21, the other end of the oil distributing sleeve 22 is fixedly connected to one end of a fifth tube 63, a plurality of oil leaking holes are arranged on the side wall of the mixing box 21 corresponding to the oil distributing sleeve 22, the low-temperature impact oil released from the oil outlet end of the oil-water cooler 61 passes through the second booster pump 62, the fifth tube 63, the oil distributing sleeve 22 and the plurality of oil leaking holes to flow into the inside of the mixing box 21, and the low-temperature impact oil is, and the mixer 2 also comprises a diffusion bedplate 23, the diffusion bedplate 23 is of a wheel spiral structure, the cross section of the inner wall of the mixing box body 21 is of a circular structure, the diffusion bedplate 23 is uniformly distributed on the inner wall of the mixing box body 21 along the circumferential direction, and the mixed cold and hot impact oil liquid spirally creeps in the mixing box body 21 by limiting the running path of the mixed cold and hot impact oil liquid, so that the effect of quickly keeping the temperature of the impact oil liquid is achieved.

A worker process of a power MOS temperature impact test device:

a worker places a device to be detected on a material rack in a test box 1, then a touch screen on a box body is touched to adjust the test temperature and start a test program, a controller controls a heating oil furnace 51 and an oil-water cooler 61 to operate, when the heating oil furnace 51 reaches an upper heating temperature value, a signal is transmitted to the controller for heat preservation, when the oil-water cooler 61 reaches a lower temperature value, the signal is transmitted to the controller for heat preservation, the controller adjusts the opening degrees of a third electromagnetic valve 54 and a fourth electromagnetic valve 64 according to the impact temperature set by the worker, thermal shock oil is pressurized by a first booster pump 52 and flows into a mixing box body 21 through a fourth pipe body 53, after being pressurized by a second booster pump 62, the cold shock oil flows into the mixing box body 21 through a fifth pipe body 63, an oil distribution sleeve 22 and a plurality of oil leakage holes, and the low temperature shock oil flows into the mixing box body 21 through the plurality of oil leakage holes in a dispersed manner, reach the effect of cold and hot impact fluid flash mixed, and through the restriction of a plurality of diffusion platen 23 to mixing cold and hot impact fluid operation route, make mixed cold and hot impact fluid spiral wriggle in mixing box 21, reach the quick isothermal effect of impact fluid, and will strike the impact oil temperature that fluid reaches the staff and set for, then spray to waiting to examine through the shower head and examine on the equipment, reach the impact effect, fluid after spraying the completion passes through first body 41 in proper order, oil transfer pump 42,

second body

43, 45 backward flows to high temperature mechanism 5 of third body, low temperature mechanism 6, constitute the circulation system of impact fluid.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a power MOS temperature impact test device which characterized in that: comprises a test box (1), a mixer (2), a control console (3), a backflow mechanism (4), a high-temperature mechanism (5) and a low-temperature mechanism (6), wherein the mixer (2) is installed on the test box (1), the control console (3) is arranged on one side of the test box (1), the lower end of the test box (1) is fixedly connected to one end of the backflow mechanism (4), the other end of the backflow mechanism (4) is fixedly connected to one end of the high-temperature mechanism (5) and one end of the low-temperature mechanism (6) respectively, the other end of the high-temperature mechanism (5) is fixedly connected to the first end of the mixer (2), one end of the low-temperature mechanism is sleeved to the periphery of the mixer (2), a liquid spraying pipe is installed at the second end of the mixer (2), the interior of the mixer (2) is communicated to the interior of the test box (1) through the liquid spraying pipe, the backflow mechanism (4), the high-temperature mechanism (5) and, the console (3) is externally connected with a circuit.

2. The power MOS temperature shock test device of claim 1, wherein: the backflow mechanism (4) comprises a first pipe body (41), an oil transfer pump (42), a second pipe body (43), a first electromagnetic valve (44), a third pipe body (45) and a second electromagnetic valve (46), one end of the first pipe body (41) is fixedly connected to the bottom end of the test box (1), the other end of the first pipe body (41) is fixedly connected to one end of the oil transfer pump (42), the inside of the oil transfer pump (42) is communicated to the inside of the test box (1) through the first pipe body (41), the other end of the oil transfer pump (42) is respectively fixedly connected to one end of the second pipe body (43) and one end of the third pipe body (45), the other end of the second pipe body (43) is fixedly connected to the high-temperature mechanism (5), the other end of the third pipe body (45) is fixedly connected to the low-temperature mechanism (6), the first electromagnetic valve (44) is installed on the second pipe body (43), the second electromagnetic valve (46), the oil transfer pump (42), the first electromagnetic valve (44) and the second electromagnetic valve (46) are in signal connection with the console (3).

3. The power MOS temperature shock test device of claim 1, wherein: high temperature mechanism (5) is including heating oil stove (51), first booster pump (52), fourth body (53), first correlation sensor and third solenoid valve (54), the one end fixed connection of second body (43) is to the income oil end of heating oil stove (51), the end of producing oil of heating oil stove (51) passes through the one end of tube coupling to first booster pump (52), the other end of first booster pump (52) passes through the one end of fourth body (53) fixed connection to blender (2), install third solenoid valve (54) on fourth body (53), install first correlation sensor in the oil tank in heating oil stove (51), first correlation sensor, first booster pump (52) and the equal signal connection of third solenoid valve (54) are to control cabinet (3).

4. A power MOS temperature shock test apparatus according to claim 3, wherein: the low-temperature mechanism (6) comprises an oil-water cooler (61), a second booster pump (62), a fifth pipe body (63), a second correlation sensor and a fourth electromagnetic valve (64), one end of the third pipe body (45) is fixedly connected to an oil inlet end of the oil-water cooler (61), an oil outlet end of the oil-water cooler (61) is connected to one end of the second booster pump (62) through a pipeline, the other end of the second booster pump (62) is fixedly connected to the periphery of the mixer (2) through the fifth pipe body (63), the fourth electromagnetic valve (64) is installed on the fifth pipe body (63), the second correlation sensor is installed in an oil tank in the oil-water cooler (61), the second correlation sensor, the second booster pump (62) and the fourth electromagnetic valve (64) are connected to the control console (3) in an equal signal mode.

5. The power MOS temperature shock test device of claim 4, wherein: the mixer (2) comprises a mixing box body (21) and an oil distribution sleeve (22), the mixing box body (21) is installed at the upper end of the test box body (1), one end of the mixing box body (21) is fixedly connected to one end of the fourth pipe body (53), the other end of the mixing box body (21) is communicated to the inside of the test box body (1) through the liquid spraying pipe, the oil distribution sleeve (22) is of a three-dimensional groove structure, one end of the oil distribution sleeve (22) is fixedly connected to the periphery of the mixing box body (21), the other end of the oil distribution sleeve (22) is fixedly connected to one end of the fifth pipe body (63), a plurality of oil leakage holes are formed in the side wall of the mixing box body (21) corresponding to the oil distribution sleeve (22), and the oil outlet end of the oil-water cooler (61) is communicated to the inside of the mixing box body (21) through the second booster pump (62.

6. The power MOS temperature shock test device of claim 5, wherein: the mixer (2) further comprises a diffusion bedplate (23), the diffusion bedplate (23) is of a wheel rotating structure, the cross section of the inner wall of the mixing box body (21) is of a circular structure, and the diffusion bedplate (23) is uniformly distributed on the inner wall of the mixing box body (21) along the circumferential direction.