CN218675151U

CN218675151U - Test head for cold and hot impact equipment and cold and hot impact equipment

Info

Publication number: CN218675151U
Application number: CN202221928539.XU
Authority: CN
Inventors: 陈宽勇; 刘冬喜
Original assignee: Haituo Instruments Jiangsu Co ltd
Current assignee: Haituo Instruments Jiangsu Co ltd
Priority date: 2022-07-25
Filing date: 2022-07-25
Publication date: 2023-03-21
Anticipated expiration: 2032-07-25
Also published as: WO2024021800A1

Abstract

The utility model relates to a test head and cold and hot impact equipment for cold and hot impact equipment, which comprises a housin, the setting is inside at the casing to be used for handling compressed air and generate the vortex device of steam and air conditioning, the setting is at the inside heating device of casing, the nozzle of being connected with heating device's the end of giving vent to anger, vortex device has the air inlet, air conditioning export and steam export, heating device's air inlet end is connected with the air conditioning export, still be equipped with the heat preservation of parcel around vortex device and heating device in the casing, be connected with the air inlet and be used for supplying with compressed gas's intake pipe, the blast pipe that one end is connected with the steam export, the other end of blast pipe passes the heat preservation and extends to the outside of heat preservation, the other end of blast pipe is equipped with silencing device. The utility model discloses a carry out the steam that vortex device produced in order and discharge, not only avoided producing the influence to vortex device and heating device's operation, also reduced equipment cost, also conveniently set up silencing device noise abatement simultaneously, reduced noise pollution.

Description

Test head for cold and hot impact equipment and cold and hot impact equipment

Technical Field

The utility model relates to a test head and cold and hot impact equipment for cold and hot impact equipment is applicable to reliability test technical field.

Background

In high-precision industries such as 5G communication, semiconductor, aerospace and the like, reliability verification is required to be performed on most electronic devices before the electronic devices are put on the market. The reliability verification is to evaluate the reliability of the product by detecting the chemical or physical changes of the product in a complex environment by changing the environmental stress around the product.

The existing reliability testing equipment comprises cold and hot impact equipment, and can simulate a continuous environment with extremely high temperature and extremely low temperature around a product by adjusting the gas temperature and continuously impacting the product. The traditional cold and hot impact equipment cools gas through a refrigeration system composed of a compressor, a condenser, an expansion valve, an evaporator and other parts, and then adjusts the temperature of the gas to a set temperature through a heater. A cold and hot impact testing device is given in the patent publication No. CN202110760705.3, and it has set up vortex mechanism in the test head, replaces traditional refrigerating system to cool down gas, can reduce the energy consumption like this, improves the speed of rising and falling the temperature.

However, after passing through the vortex mechanism, the gas can output a cold gas and a hot gas simultaneously, the cold gas is output to the product after being adjusted in temperature by the heater, and the hot gas usually does not participate in the test and needs to be discharged separately. In the patent publication CN202110760705.3, the hot gas is led to the heater through a bypass line for temperature compensation during heating and is directly discharged during cooling, but the patent does not show how the hot gas generated by the vortex mechanism is specifically discharged, nor does it show a specific structure relating to the discharge of the hot gas. However, the random discharge of hot gas easily causes the temperature in the test head to rise, and the operation of the eddy current device and the heater is influenced; further, when the hot air is discharged at will, huge noise is generated, which brings inconvenience to operators.

SUMMERY OF THE UTILITY MODEL

In order to solve the defects existing in the prior art, the utility model provides a test head and cold and hot impact equipment for cold and hot impact equipment.

On the one hand, the utility model discloses a technical scheme be: the utility model provides a test head for cold and hot impact equipment, which comprises a housin, set up the inside vortex device that is used for handling the compressed air that lets in wherein and generate steam and air conditioning of casing, the heating device who sets up in the casing, the nozzle of being connected with heating device's the end of giving vent to anger, vortex device has the air inlet, air conditioning export and hot gas outlet, heating device's air inlet end is connected with the air conditioning export, still be provided with the heat preservation of parcel around vortex device and heating device in the casing, one end is connected with the air inlet and is used for the intake pipe of vortex device supply compressed gas, the blast pipe that one end is connected with the hot gas outlet, the other end of blast pipe passes the heat preservation and extends to the outside of heat preservation, vortex device in with the test head casing through the heat preservation, heating device and external environment are kept apart, and discharge the hot gas that the hot gas export produced to the heat preservation outside through the blast pipe, avoided the influence that the operation of discharged hot gas produced vortex device and heating device, the other end of blast pipe is provided with the device that is used for eliminating the sound that the blast pipe gas discharged, noise that can eliminate the noise that produces when the exhaust pipe discharges hot gas.

Further, the test head still includes and wears to establish the temperature sensor who is used for monitoring gas temperature at the shower nozzle lateral wall, can real-time supervision output to the temperature of the gas on the product, is convenient for regulate and control in real time, and temperature sensor's probe passes the lateral wall of shower nozzle and extends to in the inner chamber of shower nozzle, ensures temperature monitoring's accuracy.

Furthermore, the air inlet and the air inlet pipe, the hot air outlet and the exhaust pipe, the cold air outlet and the air inlet end of the heating device and the air outlet end of the heating device and the nozzle are connected through threads or flanges, so that the connection tightness can be ensured, and the convenience in disassembly and assembly between the vortex device and the air inlet pipe, between the exhaust pipe and the heating device and between the heating device and the nozzle can be improved.

In an optional implementation scheme, set up some first exhaust holes on the casing, the other end of blast pipe passes the heat preservation and communicates with first exhaust hole, silencing device sets up the junction at blast pipe and first exhaust hole, it is concrete, silencing device can also be outside the casing in the casing, arrange outside the casing through first exhaust hole with hot gas that the steam outlet discharged, can reduce the steam of emission to the produced change of the environment around vortex device and the heating device, further reduce the influence that the environment caused to the operation of vortex device and heating device.

Furthermore, the first exhaust hole is formed in the top surface or the side wall of the shell, so that hot air exhausted in the test process is prevented from affecting a product below the test head, and the test accuracy is ensured.

In another optional embodiment, the cold and hot impact device is provided with a host, a second exhaust hole is formed in the host, the other end of the exhaust pipe penetrates through the heat preservation layer and is connected to the host and communicated with the second exhaust hole, the structure of the test head can be simplified, meanwhile, the influence of hot air exhaust on the operation of the vortex device and the heating device and on the test process can be further reduced, and the silencing device is arranged at the joint of the exhaust pipe and the second exhaust hole, specifically, the silencing device can be arranged in the host or outside the host and is used for eliminating noise generated by hot air exhaust.

On the other hand, the utility model provides a cold and hot impact equipment, it has adopted foretell test head that is used for cold and hot impact equipment.

Furthermore, the host is connected with the test head through a hollow connecting pipeline, the air inlet pipe is arranged in the connecting pipeline, the other end of the air inlet pipe is connected with the host, and the exhaust pipe is also arranged in the connecting pipeline under the condition that the host is provided with a second exhaust hole and the exhaust pipe is communicated with the second exhaust hole, so that the air inlet pipe and the exhaust pipe are integrated into the connecting pipeline, and the structure of the cold-hot impact equipment is simplified.

Because of the application of the above technical scheme, the utility model discloses compare prior art and have following advantage:

the utility model discloses a test head and cold and hot impact equipment for cold and hot impact equipment wraps up the vortex device and the heating device that are used for adjusting the gas temperature through setting up the heat preservation, makes it keep apart from the external environment, and the steam that rethread pipeline produced the vortex device discharges outside the heat preservation, has avoided steam to produce the influence to the operation of vortex device and heating device; the silencing device can eliminate the noise generated when hot gas is discharged and reduce the noise pollution when the equipment runs; further, the utility model discloses a succinct structure carries out reasonable emission to the produced steam of vortex device, has reduced the manufacturing cost of equipment.

Drawings

Some specific embodiments of the present invention will be described in detail hereinafter, by way of illustration and not by way of limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar devices or elements. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:

fig. 1 is a schematic structural diagram of embodiment 1 of the present invention;

fig. 2 is a schematic structural diagram of embodiment 2 of the present invention;

fig. 3 is a schematic structural diagram of embodiment 3 of the present invention;

fig. 4 is a schematic structural diagram of embodiment 4 of the present invention;

FIG. 5 is a schematic structural view of the apparatus for cold and hot impact of the present invention;

wherein the reference numerals are as follows:

1. a housing; 11. a first exhaust port; 12. connecting a pipeline; 2. a vortex device; 21. an air inlet; 22. a cold air outlet; 23. a hot gas outlet; 3. a heating device; 4. a nozzle; 41. a temperature sensor; 5. a heat-insulating layer; 6. an air inlet pipe; 7. an exhaust pipe; 8. a silencer device; 9. a host.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

Example 1: referring to fig. 1, the test head for a cold and hot impact device in this embodiment includes a housing 1, a vortex device 2 disposed inside the housing 1 for processing compressed air introduced therein to generate hot air and cold air, a heating device 3 disposed inside the housing 1, and a nozzle 4 connected to an air outlet end of the heating device 3, the vortex device 2 having an air inlet 21, a cold air outlet 22, and a hot air outlet 23, an air inlet end of the heating device 3 being connected to the cold air outlet 22, a heat insulating layer 5 wrapped around the vortex device 2 and the heating device 3 being further disposed inside the housing 1, an air inlet pipe 6 having one end connected to the air inlet 21 for supplying compressed air to the vortex device 2, and an exhaust pipe 7 having one end connected to the hot air outlet 23, the other end of the exhaust pipe 7 passing through the heat insulating layer 5 and extending to the outside of the heat insulating layer 5, the vortex device 2 and the heating device 3 inside the housing of the test head being isolated from the outside environment by the heat insulating layer 5, and the exhaust pipe 7 being provided with a muffler device 8 for eliminating noise generated by the exhaust gas from the exhaust pipe 7. Offer some first exhaust holes 11 on the casing 1, the other end of blast pipe 7 passes heat preservation 5 and communicates with first exhaust hole 11, silencing device 8 sets up in the junction of blast pipe 7 with first exhaust hole 11, and is specific, silencing device 8 can also be outside casing 1 in casing 1, can reduce the produced change of the steam of emission to the environment around vortex device 2 and the heating device 3, further reduce the influence that the environment caused to the operation of vortex device 2 and heating device 3.

In a more preferred embodiment, the first vent hole 11 is opened in the top surface of the housing 1 to prevent hot air discharged during the test from affecting a product located below the test head, thereby ensuring the test accuracy.

In a more preferred embodiment, the test head further comprises a temperature sensor 41 which is arranged on the side wall of the nozzle 4 in a penetrating way and is used for monitoring the temperature of the gas, and a probe of the temperature sensor 41 penetrates through the side wall of the nozzle 4 and extends into an inner cavity of the nozzle 4, so that the accuracy of temperature monitoring is ensured.

In a more preferred embodiment, the air inlet 21 and the air inlet pipe 6, the hot air outlet 23 and the exhaust pipe 7, the cold air outlet 22 and the air inlet end of the heating device 3, and the air outlet end of the heating device 3 and the nozzle 4 are connected through threads or flanges, so that not only can the connection tightness be ensured, but also the convenience in mounting and dismounting between the vortex device 2 and the air inlet pipe 6, between the exhaust pipe 7 and the heating device 3, and between the heating device 3 and the nozzle 4 is improved.

Referring to fig. 5, the present embodiment further provides a thermal shock apparatus, which uses the test head in the present embodiment as shown in fig. 1, and further has a main unit 9, the top surface of the housing 1 is provided with a connecting pipeline 12 for connecting the test head with the main unit 9, the air inlet pipe 6 is disposed in the connecting pipeline 12, and the other end of the air inlet pipe 6 is connected with the main unit 9.

Example 2: referring to fig. 2, the present embodiment is different from embodiment 1 only in that the first vent hole 11 is formed in the side wall of the housing 1, so that the connecting line 12 formed in the top surface of the housing 1 can be avoided, and the hot gas discharged during the test is prevented from affecting the product located below the test head, thereby ensuring the test accuracy.

Referring to fig. 5, the present embodiment also provides a thermal shock apparatus using the test head of the present embodiment shown in fig. 2.

Example 3: referring to fig. 3 and 5, the present embodiment is different from embodiment 1 only in that the test head in the present embodiment is not provided with a first exhaust hole, the other end of the exhaust pipe 7 penetrates through the insulating layer 5 and extends out of the test head to a host 9 connected to the thermal shock device, a second exhaust hole (not shown in the drawings) for exhausting gas from a hot gas outlet 23 is provided on the host 9, the other end of the exhaust pipe 7 is communicated with the second exhaust hole, the structure of the test head can be simplified, and simultaneously, the influence of the hot gas exhaust on the operation of the vortex device 2 and the heating device 3 and the test process can be further reduced, and the silencing device 8 is provided at the connection position of the exhaust pipe 7 and the second exhaust hole, specifically, the silencing device 8 can be inside the host 9 and outside the host 9 for eliminating noise generated by the hot gas exhaust.

This embodiment also provides a thermal shock apparatus employing the test head of the present embodiment as shown in fig. 3.

In a more preferable embodiment, the main machine 9 is connected with the test head through a hollow connecting pipeline 12, one end of the connecting pipeline 12 is connected with the top of the test head, the air inlet pipe 6 is arranged in the connecting pipeline 12, the other end of the air inlet pipe 6 is connected with the main machine 9, and in the case that a second exhaust hole is arranged on the main machine 9 and the exhaust pipe 7 is communicated with the second exhaust hole, the exhaust pipe 7 is also arranged in the connecting pipeline 12, so that the air inlet pipe 6 and the exhaust pipe 7 are integrated into the connecting pipeline 12, and the structure of the cold-hot impact device is simplified.

Example 4: referring to fig. 4, the present embodiment is different from embodiment 1 only in that the other end of the exhaust pipe 7 penetrates the insulating layer 5 and extends into an inner cavity between the insulating layer 5 and the casing 1, and hot air discharged from the hot air outlet 23 is discharged into the inner cavity, and the muffler device 8 is preferably provided on the outer wall of the insulating layer 5.

In a more preferred embodiment, the surface of the casing 1 is provided with a plurality of heat dissipation holes (not shown in the drawings) for dissipating the hot air in the inner cavity between the insulating layer 5 and the casing 1.

Referring to fig. 5, this embodiment also provides a thermal shock apparatus using the test head of this embodiment as shown in fig. 4.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, so as not to limit the protection scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. The utility model provides a test head for cold and hot impact equipment, includes casing (1), sets up casing (1) inside is used for handling the compressed air who lets in wherein and generates vortex device (2) of steam and cold air, sets up heating device (3) inside casing (1), with nozzle (4) that heating device (3) were given vent to anger and are connected mutually, vortex device (2) have air inlet (21), cold air export (22) and hot gas export (23), the air inlet of heating device (3) with cold air export (22) are connected, its characterized in that: still be provided with the parcel in casing (1) vortex device (2) with heat preservation (5), one end around heating device (3) with air inlet (21) are connected and are used for vortex device (2) supply with compressed gas's intake pipe (6), one end with blast pipe (7) that hot gas outlet (23) are connected, the other end of blast pipe (7) passes heat preservation (5) and extend to the outside of heat preservation (5), just the other end of blast pipe (7) is provided with and is used for eliminating blast pipe (7) gas outgoing's sound silencing device (8).

2. A test head for a thermal shock apparatus according to claim 1, wherein: casing (1) is last to have seted up first exhaust hole (11), the other end of blast pipe (7) passes heat preservation (5) and with first exhaust hole (11) intercommunication, silencing device (8) set up blast pipe (7) with the junction of first exhaust hole (11).

3. The test head for a cold-hot impact device of claim 2, wherein: the first exhaust hole (11) is formed in the top surface or the side wall of the shell (1).

4. A test head for a cold-thermal shock device according to claim 1, wherein: cold and hot impact equipment has host computer (9), be provided with the second hole of exhausting on host computer (9), the other end of blast pipe (7) passes heat preservation (5) and connect to host computer (9) and with the second hole of exhausting intercommunication, silencing device (8) set up blast pipe (7) with the junction in second hole of exhausting.

5. A test head for a cold-thermal shock device according to claim 1, wherein: the testing head further comprises a temperature sensor (41) which is arranged on the side wall of the nozzle (4) in a penetrating mode and used for monitoring the temperature of gas, and a probe of the temperature sensor (41) penetrates through the side wall of the nozzle (4) and extends into an inner cavity of the nozzle (4).

6. A test head for a thermal shock apparatus according to claim 1, wherein: the air inlet (21) and the air inlet pipe (6) are connected through threads or flanges, the hot air outlet (23) and the exhaust pipe (7) are connected through threads or flanges, the cold air outlet (22) and the air inlet end of the heating device (3) are connected through threads or flanges, and the air outlet end of the heating device (3) and the nozzle (4) are connected through flanges.

7. The utility model provides a cold and hot impact equipment, includes host computer (9), test head, is used for connecting host computer (9) with the test head just is hollow connecting line (12), its characterized in that: the test head is the test head for a cold-thermal shock device of claim 1.

8. A cold-thermal impact device according to claim 7, wherein: the host (9) is provided with a second exhaust hole, the other end of the exhaust pipe (7) penetrates through the heat preservation layer (5) and penetrates through the inside of the connecting pipeline (12) and is communicated with the second exhaust hole, and the silencing device (8) is arranged at the joint of the exhaust pipe (7) and the second exhaust hole.

9. A cold-thermal impact device according to claim 7, wherein: the air inlet pipe (6) is arranged in the connecting pipeline (12) and the other end of the air inlet pipe (6) is connected with the host (9).

10. A thermal shock apparatus, characterized in that a test head for a thermal shock apparatus according to any one of claims 2,3,5 and 6 is used.