WO2021169269A1

WO2021169269A1 - Fct jig and externally connected air channel-type heat dissipation system thereof

Info

Publication number: WO2021169269A1
Application number: PCT/CN2020/117513
Authority: WO
Inventors: 夏纪永
Original assignee: 苏州浪潮智能科技有限公司
Priority date: 2020-02-29
Filing date: 2020-09-24
Publication date: 2021-09-02
Also published as: CN111372423A; CN111372423B

Abstract

Disclosed in the present invention is an externally connected air channel-type heat dissipation system, comprising an air transfer opening provided on a jig casing body and used for communicating with an air channel pipeline that transfers pressurized air, a cooling module in communication with the air transfer opening and used for reducing the temperature of introduced pressurized air, and a plurality of air transfer branch pipes in communication with an air outlet opening of the cooling module, an air outlet opening of each air transfer branch pipe being respectively oriented toward a jig function member corresponding thereto. As such, the present invention implements temperature reduction and heat dissipation on internal functional modules of the FCT jig by means of the air transfer opening introducing pressurized air from an external air channel pipeline, then by means of the cooling module reducing the temperature of the pressurized air, and finally by means of the air transfer branch pipes blowing the cooled pressurized air onto the jig function members. Compared to the prior art, the present invention makes use of an existing air channel pipeline, significantly cutting down on assembly costs, reducing space occupied, and significantly reducing noise during operation. Further disclosed in the present invention is a FCT jig, the beneficial effects thereof being as described above.

Description

An FCT fixture and its external air circuit type heat dissipation system

This application claims the priority of a Chinese patent application filed with the State Intellectual Property Office of China on February 29, 2020. The application number is 202010132385.2, and the invention title is "An FCT fixture and its external gas circuit cooling system". The content is incorporated in this application by reference.

Technical field

The invention relates to the technical field of servers, in particular to an external air circuit type heat dissipation system. The invention also relates to an FCT fixture.

Background technique

With the development of electronic technology in China, more and more electronic devices have been widely used.

The server is an important part of electronic equipment and a device that provides computing services. Since the server needs to respond to service requests and process them, in general, the server should have the ability to undertake the service and guarantee the service. According to the different types of services provided by the server, it is divided into file server, database server, application server, WEB server, etc. The main components of the server include a processor, hard disk, memory, system bus, etc., which are similar to a general computer architecture.

With the current rapid development of computing power, the usage of servers is rising sharply. The research and development of servers and iterative updates are particularly important. Each server motherboard must be tested and verified before leaving the factory, and many tests and verifications must be based on many tests. Tool, FCT fixture is one of the most important test tools.

FCT (Function Circuit Test) is a functional test, which simulates the operating environment of the server, makes it work in various design states, and obtains the operating parameters of the motherboard. The FCT fixture integrates the motherboard, hard disk module, PCIE module, memory module, power module and other modules, which will generate a lot of heat during the working process. In addition to the motherboard's cooling fan, additional heat dissipation capacity is required.

At present, FCT fixtures and PCBA (Printed Circuit Board Assembly) production lines in the prior art use fans for heat dissipation. Although fans have the advantages of simple structure, safety and reliability, their shortcomings are also obvious, such as erection The large number leads to high installation costs, high operating noise, severe vibration, short life span, and inability to lower the temperature below room temperature. At the same time, the volume of the fan is large, and it takes up more space when installed in the FCT fixture, which is not conducive to the layout of the various functional modules in the fixture, and it is necessary to twist and operate multiple fastenings when disassembling and overhauling the fan. Pieces, more time-consuming and laborious.

Therefore, how to reduce installation costs, reduce operating noise, and reduce space occupation on the basis of ensuring that the FCT fixture has sufficient heat dissipation performance is a technical problem faced by those skilled in the art.

Summary of the invention

The purpose of the present invention is to provide an external air circuit type heat dissipation system, which can reduce installation costs, reduce operating noise, and reduce space occupation on the basis of ensuring that the FCT fixture has sufficient heat dissipation performance. Another object of the present invention is to provide an FCT fixture.

In order to solve the above technical problems, the present invention provides an external air circuit type heat dissipation system, which includes an air delivery port opened on the jig shell and used for communicating with the air circuit pipeline for transmitting compressed air, and connected and used with the air delivery port There are a number of air delivery manifolds communicating with the air outlet of the refrigeration module and the refrigeration module for cooling the introduced compressed air, and the air outlet of each of the air delivery manifolds respectively faces the corresponding fixture function.

Preferably, an external air circuit type heat dissipation system of the present invention further includes a filter module communicating with the air delivery port and used to filter the imported compressed air for impurities, and the air inlet of the refrigeration module is connected to the The air outlet of the filter module is connected.

Preferably, an external air circuit type heat dissipation system of the present invention further includes a drying module connected to the air outlet of the refrigeration module and used to remove water from the cooled compressed air, and each of the air delivery manifolds The air inlets are all connected with the air outlet of the drying module.

Preferably, an external air circuit type heat dissipation system of the present invention further includes an air outlet communicating between the drying module and the air inlet of each of the air delivery manifolds for reducing the pressure of compressed air to reduce Wind speed step-down module.

Preferably, each of the gas delivery manifolds is provided with an electronic control valve with adjustable valve opening for adjusting the output flow of each path of compressed air.

Preferably, an external air circuit type heat dissipation system of the present invention further includes a flow detector arranged in each of the air delivery manifolds for detecting the air flow rate, and a temperature of the functional parts of each of the fixtures. Detector signal connection, a control unit for monitoring its real-time temperature, each of the flow detectors is signally connected to the control unit, so that it can control the opening of each of the electronically controlled regulating valves according to the received feedback temperature data .

Preferably, an external air circuit type heat dissipation system of the present invention further includes a barometric pressure detector connected to the air delivery port and the air outlet of the pressure reduction module for detecting the air pressure, and each of the air pressure detectors They are all signally connected to the control unit, so that the pressure reduction value of the pressure reduction module is adjusted according to the preset allowable air pressure range of each of the gas delivery manifolds.

Preferably, an external air-path type heat dissipation system of the present invention further includes an air outlet provided at the air outlet of each of the air delivery manifolds for uniformly injecting compressed air onto the surface of the corresponding fixture functional part. Nozzle assembly.

Preferably, the nozzle assembly includes a box body base, a mesh partition covering the surface of the box body base, an air jet net cover buckled on the surface of the box body base, and an opening on the box body base. A bent pipe on the bottom plate and in communication with the corresponding air outlet of the air delivery manifold and used for buffering the introduced compressed air in the base of the box body.

The present invention also provides an FCT fixture, including a fixture housing and an external air circuit type heat dissipation system arranged in the fixture housing, wherein the external air circuit type heat dissipation system is specifically any one of the above The external air circuit cooling system.

The external air circuit type heat dissipation system provided by the present invention mainly includes an air delivery port, a refrigeration module and an air delivery manifold. Among them, the gas transmission port is opened on the fixture shell and is connected with the gas pipeline that has been laid on the external production line. The gas pipeline is the pipeline used to transmit compressed air in the external gas system. The FCT fixture is located The station can be easily connected with the gas pipeline. The refrigeration module is connected with the air delivery port, and is mainly used to cool the introduced compressed air to lower its temperature and become a heat-absorbing medium for cold air. There are multiple air delivery manifolds arranged at the same time, the air inlet of each air delivery manifold is connected to the air outlet of the refrigeration module, and the air outlet of each air delivery manifold faces the corresponding fixture function (ie The functional module installed in the FCT fixture) to spray the compressed air introduced from the external air pipeline from the air outlet of each air delivery manifold to the functional parts of the fixture, and the cold air absorbs the heat medium. The functional parts of each fixture are used for heat dissipation and cooling. In this way, the external air circuit type heat dissipation system provided by the present invention introduces compressed air from the external air circuit pipeline through the air delivery port, and then cools the compressed air through the refrigeration module, and finally cools it through each air delivery manifold The compressed air is blown onto the functional parts of the fixture to realize the cooling and heat dissipation of the internal functional modules of the FCT fixture. Compared with the prior art, the present invention reuses the existing air pipeline and does not need to be on the fixture shell. A large number of fans are installed, which greatly reduces installation costs and space occupation. At the same time, compressed air is circulated in the pipeline, and the operating noise is greatly reduced.

Description of the drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only It is an embodiment of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on the provided drawings without creative work.

FIG. 1 is a block diagram of the overall structure of a specific embodiment provided by the present invention;

Fig. 2 is a schematic diagram of the control principle of a specific embodiment provided by the present invention;

Fig. 3 is an exploded schematic view of the specific structure of the nozzle assembly shown in Fig. 1.

Among them, in Figure 1-Figure 3:

Gas pipeline—a, fixture functional parts—b;

Fixture shell-1, air delivery port-2, refrigeration module-3, air delivery manifold-4, filter module-5, drying module-6, pressure reducing module-7, electronic control valve-8, flow detection Meter-9, control unit-10, air pressure detector-11, nozzle assembly-12, master switch-13.

Box base-121, mesh partition-122, air jet net cover-123, bending pipe-124.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

Please refer to FIGS. 1 and 2. FIG. 1 is a block diagram of the overall structure of a specific embodiment provided by the present invention, and FIG. 2 is a schematic diagram of the control principle of a specific embodiment provided by the present invention.

In a specific embodiment provided by the present invention, the external air circuit type heat dissipation system mainly includes an air delivery port 2, a refrigeration module 3 and an air delivery manifold 4.

Among them, the gas transmission port 2 is opened on the fixture housing 1, and is connected with the gas pipeline a that has been laid on the external production line. The gas pipeline a is a pipeline for transmitting compressed air in the external gas system, FCT The station where the jig is located can be easily connected to the gas pipeline a.

The refrigeration module 3 is in communication with the air delivery port 2 and is mainly used to cool the introduced compressed air to lower its temperature and become a cold air heat-absorbing medium. Generally, the refrigeration principle of the refrigeration module 3 is the same as that of an air conditioner or a refrigerator, and will not be repeated here. In addition, an additional air storage tank can be installed in the refrigeration module 3, and heat insulation can be installed at the same time, so that part of the refrigerated compressed air can be stored through the air storage tank. In daily operations, the compressed air in the air storage tank can be used first , Thereby enabling the refrigeration module 3 to operate intermittently, and continue to refrigerate the newly introduced compressed air only when the pressure of the air storage tank drops to a preset value.

There are multiple air delivery manifolds 4 arranged at the same time, the air inlet of each air delivery manifold 4 is communicated with the air outlet of the refrigeration module 3, and the air outlet of each air delivery manifold 4 faces their respective fixtures. The functional part b (that is, the functional module installed in the FCT fixture) is used to spray the compressed air introduced from the external air pipeline a from the air outlet of each air delivery manifold 4 to each fixture functional part b , Through the cold air heat-absorbing medium to perform heat dissipation and cooling of each fixture function b.

In this way, the external air circuit type heat dissipation system provided in this embodiment introduces compressed air from the external air circuit pipeline a through the air delivery port 2, and then cools the compressed air through the refrigeration module 3, and finally passes through each air delivery The manifold 4 blows the cooling compressed air to each fixture function b to realize the cooling and heat dissipation of the internal functional modules of the FCT fixture. Compared with the prior art, this embodiment reuses the existing air pipeline a. In addition, there is no need to lay a large number of fans on the fixture housing 1, which greatly reduces the installation cost and reduces the space occupation. At the same time, the compressed air is circulated in the pipeline, and the operating noise is greatly reduced.

Considering that the compressed air in the external air pipeline a may carry impurities after being transported over a long distance, for this reason, a filter module 5 is added in this embodiment. Specifically, the air inlet of the filter module 5 is in communication with the air inlet 2, and the imported compressed air can be filtered through components such as filters to ensure that the compressed air entering the heat dissipation system is clean. At the same time, the air inlet of the refrigeration module 3 is in communication with the air outlet of the filter module 5, so that the introduced compressed air can enter the refrigeration module 3 after being filtered.

At the same time, considering that the compressed air in the external air pipeline a may be mixed with the water vapor in the air, resulting in a high degree of humidity of the compressed air, in order to prevent the moisture contained in the compressed air from causing rusting of the equipment or short circuit of the circuit, etc. In the embodiment, a drying module 6 is added. Specifically, the air inlet of the drying module 6 communicates with the air outlet of the refrigeration module 3, and is mainly used to remove water from the cooled compressed air, for example, by chemical methods such as calcium hydroxide and other substances to absorb water.

Further, considering that the compressed air in the external air pipeline a is often at a higher pressure in order to increase the transmission distance and transportation speed, in order to avoid greater pressure and wind speed damage or shaking the fixture function b in the FCT fixture, this In the embodiment, a step-down module 7 is added. Specifically, the pressure reducing module 7 is connected between the air outlet of the drying module 6 and the air inlet of each air delivery manifold 4, and is mainly used to reduce the pressure of the compressed air, thereby reducing the wind speed. Generally, according to the principle of gas flow, under the premise of a certain diameter of the gas pipe, the higher the pressure, the faster the gas flow. On the one hand, the excessive speed will cause louder noise, and on the other hand, the equipment will be damaged due to excessive wind. The depressurization module 7 in this embodiment can specifically adopt a two-stage depressurization. The first stage is the main depressurization, and the depressurization amplitude is relatively large. It is mainly used to reduce the pressure to within the range of the set value, and the second stage is Fine pressure reduction, the pressure reduction range is small, mainly used to accurately control the pressure value.

Not only that, considering that the heat dissipation requirements of different fixture functions b are different, and the intake flow requirements of different air delivery manifolds 4 are different. For this, in this embodiment, each air delivery manifold 4 is uniformly installed. Set up an electronically controlled regulating valve 8. Specifically, the electronically controlled regulating valve 8 can be a solenoid valve, etc., and its valve opening can be precisely controlled by a micro stepping motor, so that the change in the valve opening can adjust the air flow of each air delivery manifold 4 to target It can meet the heat dissipation requirements of different fixture functions b.

Further, in order to improve the control accuracy of the valve opening of the electronically controlled regulating valve 8 and the control accuracy of the intake air flow of each air delivery manifold 4, a flow detector 9 and control are added in this embodiment. Unit 10. Among them, the control unit 10 is the core control element of the heat dissipation system, which is mainly used to coordinate and control various system functional parameters, such as flow control, pressure control, valve control, and so on. The flow detector 9 is arranged in each gas delivery manifold 4 and is mainly used to detect the air flow rate. Each flow detector 9 is signally connected to the control unit 10 and can send real-time detected data to the control unit 10. At the same time, the control unit 10 is also signal-connected with temperature detectors installed on each fixture function b, so as to receive the real-time temperature of each fixture function b in real time, so as to accurately control the opening of each electronic control valve 8 according to the data. Therefore, the air flow in each air delivery manifold 4 can be precisely controlled. The real-time data feedback of each flow detector 9 to the control unit 10 can increase the control accuracy of the control unit 10.

Based on the same consideration, this embodiment also adds a barometric pressure detector 11 at the end of the air delivery port 2 and the air outlet of the pressure reduction module 7. Specifically, the air pressure detector 11 is mainly used to detect the current air pressure in the pipeline, that is, the pressure of the compressed air just introduced from the air delivery port 2 and the pressure of the compressed air after the pressure reduction process by the pressure reduction module 7. In addition, each barometric pressure detector 11 is signally connected to the control unit 10, so that the control unit 10 can determine whether the pressure reduction module 7 is in good working condition based on the difference between the feedback data of the two front and rear barometric detectors 11. More importantly, the control unit 10 can also adjust the pressure reduction value of the pressure reduction module 7 according to the difference between the reduced compressed air pressure and the preset allowable air pressure range of each air delivery manifold 4 to further increase the pressure. The control unit 10 controls the accuracy of the air flow of each air delivery manifold 4.

As shown in FIG. 3, FIG. 3 is an exploded schematic diagram (a top view) of a specific structure of the nozzle assembly 12 shown in FIG. 1.

In another preferred embodiment, in order to facilitate each air delivery manifold 4 to spray compressed air on the corresponding new fixture function b conveniently, comprehensively, and evenly, the present embodiment is designed for each air delivery manifold 4 Nozzle assembly 12 is provided at the air outlets. Specifically, the nozzle assembly 12 mainly includes a box base 121, a mesh partition 122, an air jet net cover 123 and a bending pipe 124.

Among them, the box base 121 is the bottom structure of the nozzle assembly 12, and has a certain accommodation space therein, which can temporarily store a certain amount of compressed air. The mesh partition 122 covers and is laid on the surface of the box base 121, and is mainly used to enable the compressed air temporarily stored in the box base 121 to enter the air-jet mesh cover 123 through several meshes provided thereon. The air-jet net cover 123 is buckled on the surface of the box base 121, and is generally detachably connected to it by fasteners, and is combined to form a sealing structure. Of course, dense meshes are opened on the surface of the air-jet net cover 123, and the degree of fineness is greater than that of the mesh partition 122, so that the sprayed compressed air can be more gentle and uniform, and prevent strong wind from affecting the fixture function b Cause damage. The bent pipe 124 is opened on the surface of the bottom plate of the box base 121, and the bottom plate protruding from the box base 121 communicates with the air outlet of the corresponding air delivery manifold 4, and is mainly used to remove the compressed air in the air delivery manifold 4 Introduced into the box base 121, and at the same time, through the bending structure, the compressed air is forced to undergo multiple turns and collisions in the box base 121 to form a decelerating and buffering effect on the compressed air, and then through the mesh partition 122 and the air jet After the net cover 123, the wind speed of the compressed air can be appropriately reduced to avoid damage to the fixture function b.

In addition, in this embodiment, a main switch 13 can be added to the main pipe after the pressure reduction module 7 and before each gas manifold 4 to control the on-off of the gas circuit in the main pipe.

This embodiment also provides an FCT fixture, which mainly includes a fixture housing 1 and an external air circuit type heat dissipation system arranged in the fixture housing 1, wherein the specific content of the external air circuit type heat dissipation system is related to the above The content is the same, so I won’t repeat it here.

The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown in this document, but should conform to the widest scope consistent with the principles and novel features disclosed in this document.

Claims

An external air circuit type heat dissipation system, which is characterized by comprising an air delivery port (2) opened on the fixture housing (1) and used for communicating with the air pipeline (a) for transmitting compressed air, and the air delivery port (2) connected to the air delivery The air port (2) is connected to the refrigeration module (3) for cooling the introduced compressed air, and several air delivery manifolds (4) are connected to the air outlet of the refrigeration module (3), each of which is The air outlets of the air manifold (4) respectively face the corresponding fixture function parts (b).
The external air circuit type heat dissipation system according to claim 1, characterized in that it further comprises a filter module (5) communicating with the air delivery port (2) and used to filter the imported compressed air for impurities, and The air inlet of the refrigeration module (3) is communicated with the air outlet of the filter module (5).
The external air circuit type heat dissipation system according to claim 2, characterized in that it further comprises a drying module (6) communicating with the air outlet of the refrigeration module (3) and used for dewatering the cooled compressed air , And the air inlets of each of the air delivery manifolds (4) are connected with the air outlets of the drying module (6).
The external air circuit type heat dissipation system according to claim 3, characterized in that it further comprises a connection between the air outlet of the drying module (6) and the air inlet of each of the air delivery manifolds (4). , Decompression module (7) used to reduce the pressure of compressed air to reduce wind speed.
The external air circuit type heat dissipation system according to claim 4, characterized in that, each of the air delivery manifolds (4) is provided with adjustable valve openings for adjusting the output flow of compressed air. Electronically controlled regulating valve (8).
The external air circuit type heat dissipation system according to claim 5, further comprising a flow detector (9) arranged in each of the air delivery manifolds (4) for detecting the air flow rate thereof, and The control unit (10) that is connected to the temperature detector of each fixture function (b) to monitor its real-time temperature, and each of the flow detectors (9) is connected to the control unit (10). Connected so as to control the opening degree of each of the electronically controlled regulating valves (8) according to the received feedback temperature data.
The external air circuit type heat dissipation system according to claim 6, characterized in that it further comprises an air pressure communicating with the air delivery port (2) and the air outlet of the pressure reducing module (7) for detecting its air pressure. A detector (11), and each of the air pressure detectors (11) is signally connected to the control unit (10), so that it is based on the preset allowable air pressure range of each of the gas delivery manifolds (4) Adjust the pressure reduction value of the pressure reduction module (7).
The external air circuit type heat dissipation system according to any one of claims 1-7, further comprising an air outlet provided at each of the air delivery manifolds (4) for uniformly injecting compressed air To the nozzle assembly (12) on the surface of the corresponding fixture function (b).
The external air circuit type heat dissipation system according to claim 8, wherein the nozzle assembly (12) comprises a box base (121) and a mesh partition (121) covering the surface of the box base (121). 122), the air-jet net cover (123) buckled on the surface of the box base (121), and opened on the bottom plate of the box base (121) and connected to the corresponding air manifold (4 The air outlet of) communicates with a bent pipe (124) used for buffering the introduced compressed air in the box base (121).
An FCT fixture, comprising a fixture housing (1) and an external air circuit type heat dissipation system arranged in the fixture housing (1), characterized in that the external air circuit type heat dissipation system is specifically a right The external air circuit type heat dissipation system described in any one of 1-9 is required.