CN207678164U - Radiator structure and stocking system for stocking system - Google Patents

Abstract

The utility model discloses a kind of radiator structure and stocking system for stocking system, the stocking system includes main branch and backup branch, which is characterized in that the radiator structure includes：First radiator is arranged on the heating module of the main branch, radiates for the heating module to the main branch；Second radiator is mounted on the heating module of the backup branch, radiates for the heating module to the backup branch.Make backup branch avoid being influenced by main branch heating module, under lower temperature environments, the failure probability of deposit branch can be reduced, promote the reliability of stocking system.

Description

Heat dissipation structure for reserve system and reserve system

technical field

The utility model relates to the technical field of power supplies, in particular to a heat dissipation structure for a reserve system and the reserve system.

Background technique

Reserve system, in order to avoid serious consequences after a branch fails, a branch with a reserve function is added. When the main branch is working, the backup branch is in a non-working state or an auxiliary working state. After the main branch fails, switch to Backup branch to maintain the original function of the system. In the reserve system, the common one is the cold backup system. When the main branch is working, the cold backup branch is in a non-working state. After the main branch fails, it is switched to the cold backup branch. For example, Uninterruptible Power System Uninterruptible Power Supply, UPS), is a relatively common cold storage circuit, widely used in computers, computer network systems, servers, switches or other equipment that requires stable power supply. When the UPS is used as a backup power supply, when the external power supply is normal, for example, the UPS is connected to the mains, and the UPS is equivalent to an AC voltage stabilizer, which supplies power to the load through the AC/DC converter and the DC/AC converter. It also charges the built-in battery. When the mains power is interrupted or the power is cut in an accident, the UPS immediately uses the DC power of the battery to continue to supply AC power to the load through the DC/DC converter and DC/AC converter.

In the UPS, since the AC/DC converter and the DC/DC converter are heat-generating devices, a radiator needs to be installed to dissipate heat. In the reserve system, the AC/DC converter and the DC/AC converter are equivalent to the main branch The heating module in the road, the DC/DC converter is equivalent to the heating module of the backup branch, in the prior art, as shown in Figure 1, the heating module 11 in the main branch 10 and the heating module of the backup branch 20 21 share a radiator 13. However, since the main heating module produces more heat, and the heating module of the backup branch is in a non-working state when the UPS is normal, the heat generated by the heating module of the main branch passes through and the backup branch The radiator shared by the heating module of the backup branch is conducted to the heating module of the backup branch, so that the heating module of the backup branch is in a high-temperature environment for a long time, resulting in an increase in the non-working failure rate of the backup heating module.

Therefore, how to reduce the non-working failure rate of the heating modules of the backup branch in the reserve system has become an urgent problem to be solved.

Utility model content

The technical problem to be solved by the utility model is to reduce the non-working failure rate of the heating module of the backup branch in the reserve system.

According to the first aspect, the embodiment of the present utility model provides a heat dissipation structure of a reserve system, the so-called reserve system includes a main branch and a backup branch, because the backup branch is in a non-working state or an auxiliary working state when the reserve system is working normally state, if the heating module of the backup branch and the heating module of the main branch use the same heat sink, under normal working conditions, the backup branch is always in a high temperature environment due to the influence of the radiator, which is likely to cause backup branch Therefore, it is necessary to install radiators for the heating module in the main branch and the heating module in the backup branch to dissipate heat, so as to avoid the heat generated by the heating module in the main branch from affecting the backup through the radiator. The heating module of the branch circuit. The first radiator can be installed on the heating module of the main branch to dissipate heat from the heating module of the main branch, and the second radiator can be separately provided for the heating module of the backup branch, which can reduce the heat generation of the backup branch The probability of non-operating failure of the module.

Optionally, when the heating module of the main circuit produces a large amount of heat, it is necessary to keep the heating module and the second radiator of the backup branch away from the heating module and the first radiator of the main circuit, so as to avoid the heat generated by the heating module of the main branch. Heat affects the heating module of the backup branch.

Optionally, the heat dissipation structure for the storage system may further include: an air duct for accommodating the first radiator and the second radiator; space and the second space, the first radiator is arranged in the first space, the second radiator is arranged in the second space; the fan is arranged at the air inlet of the air duct. In order to increase the heat dissipation effect of the reserve system, and further reduce the influence of the heating module of the main branch on the heating module of the backup branch. The first heat sink and the second heat sink are respectively provided with mutually independent air passage spaces, and the fans are shared, so that the space of the heat dissipation structure can be reduced.

Optionally, the heat dissipation structure for the storage system may also include: a movable baffle, arranged at the end of the air duct partition close to the air inlet of the air duct, and used to block the air inlet of the second space when the main branch is working , and is used to block the air inlet of the first space when the backup branch is working. It can further increase the air volume when a certain branch is working, and increase the heat dissipation efficiency.

Optionally, between the first radiator and the thermal module of the main branch and between the second radiator and the heating module of the backup branch, any one or any combination of thermally conductive silica gel, thermally conductive silicone grease, and thermally conductive sheets is arranged . Filling the gap between the radiator and the heating module with thermal silica gel, thermal grease or thermal conductive sheet can further increase the heat conduction of the heating module to the radiator and increase the heat dissipation efficiency.

According to the second aspect, the embodiment of the present utility model provides a reserve system, which may include a main branch that is in the working state when the reserve system is in normal operation and a main branch that is in the non-operating state when the reserve system is in normal operation. The backup branch, the main branch and the backup branch both contain heating modules, and the two heating modules are dissipated by their own radiators, so that the backup branch can avoid being affected by the heating module of the main branch and stay in a lower temperature environment Under this condition, the failure probability of the reserve branch can be reduced and the reliability of the reserve system can be improved.

Optionally, the first radiator for cooling the heating module of the main branch and the second radiator for cooling the heating module of the backup branch are far away from each other, in order to further ensure that the heating module of the main branch dissipates heat The heat affects the backup branch, the heating module of the main branch and the heating module of the backup branch may be set far away.

Optionally, the cold reserve system is that when the main branch works normally, the backup branch is in a non-working state. If the main branch heating module has a greater impact on the backup branch, the reserve system can be a cold reserve system, Installing radiators on the heating module of the main branch and the heating module of the backup branch respectively can more effectively reduce the non-working state failure probability of the backup branch in the cold reserve system.

Optionally, the reserve system may further include: an input branch connected between the input end of the main branch and the backup branch and the power supply; an output branch connected between the main branch and the backup Between the output end of the branch and the load; the third radiator is arranged on the heating module of the input branch and/or the output branch, and is used for cooling the input branch and/or the output branch The heating module of the road conducts heat dissipation. The third radiator is remote from the first radiator and the second radiator. Optionally, the reserve system may be a cold reserve system, and further, the cold reserve system may be an uninterruptible power supply, which is a typical cold reserve system, wherein the main branch works when the uninterruptible power supply is normal, The backup branch is in a non-working state, and the AC/DC converter and/or inverter on the main branch are heating modules with large heat generation. When the backup branch is working, the DC/DC converter of the backup branch is a heat-generating module with large heat generation. Therefore, the AC/DC converter and/or inverter on the main branch and the DC/DC converter of the backup branch The DC converters are respectively equipped with a radiator, and the two radiators are kept away from each other. In order to further reduce the influence of the main branch on the backup branch, the AC/DC converter and/or inverter in the main branch can be Set away from the DC/DC converter in the backup branch. Since the inverter is a heating module that works all the time, it is necessary to install a third radiator in the inverter to dissipate heat separately. In order to avoid the influence of the inverter on the DC/DC converter of the backup branch, the first Three radiators need to be set away from the second radiator.

Set the first radiator on the heating module of the main branch in the reserve system, and the second radiator on the heating module of the backup branch in the reserve system, and separate the heating modules of the main branch and the backup branch for heat dissipation , in the normal working state, it can avoid the impact of the backup branch due to the heat dissipation of the main branch radiator, avoid the backup branch being in a high temperature environment, and set the second radiator separately for the heating module of the backup branch, so that The non-working failure probability of the heating module of the backup branch can be reduced.

Description of drawings

Fig. 1 shows a schematic diagram of the heat dissipation structure of the reserve system in the prior art;

Fig. 2 shows a schematic diagram of the heat dissipation structure used in the reserve system according to the embodiment of the present invention;

Fig. 3 shows a schematic diagram of another heat dissipation structure for the reserve system according to the embodiment of the present invention;

Fig. 4 shows the structural representation of the storage system of the utility model embodiment;

Fig. 5 shows a schematic structural diagram of an uninterruptible power supply according to an embodiment of the present invention.

Detailed ways

The technical solutions of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are part of the embodiments of the utility model, but not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model. In addition, the terms "first", "second", "third", etc. are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

The embodiment of the utility model provides a heat dissipation structure of a reserve system, the so-called reserve system has at least two working branches, one of which is used as a backup branch, and when the main branch fails, the backup branch replaces the main branch Road work, wherein the reserve system can include a thermal reserve system and a cold reserve system, wherein the thermal reserve system can be a redundant power supply, for example, a communication base station power supply, a power electronic equipment power supply, etc., and a common example of a cold reserve system is an uninterruptible power supply ( Uninterruptible Power System/Uninterruptible Power Supply, UPS), as shown in Figure 1, the above reserve systems all have a main branch 10 and a backup branch 20, because the backup branch 20 is in a non-working state or an auxiliary branch when the reserve system is working normally. In the working state, if the heating module 21 of the backup branch and the heating module 11 of the main branch use the same radiator 13, in the normal working state, the backup branch 20 is always in a higher temperature environment due to the influence of the radiator. It is easy to cause non-working failure of the heating module 21 of the backup branch, therefore, the applicant provides a heat dissipation structure for the reserve system, as shown in Figure 2, the heat dissipation structure includes:

The first radiator 12 is arranged on the heating module 11 of the main branch, and is used for dissipating heat from the heating module 11 of the main branch. The second radiator 22 is arranged on the heating module of the backup branch, and is used for dissipating heat from the heating module of the backup branch. Radiators are installed on the heating module 11 in the main branch and the heating module 21 in the backup branch to dissipate heat, so as to prevent the heat generated by the heating module in the main branch from affecting the heating module in the backup branch through the radiator. The first radiator 12 can be arranged on the heating module 11 of the main branch to dissipate heat from the heating module 11 of the main branch, and the second radiator 22 can be separately provided for the heating module 21 of the backup branch, which can reduce the Non-working failure probability of the heating module 21 of the backup branch. In this embodiment, there can be one or more first radiators 12 and second radiators 22 , and the specific number depends on the heating modules in the reserve system.

In order to further reduce the failure probability of the heating module 21 of the backup branch in the non-working state, in an optional embodiment, the heating module 11 of the main branch and the heating module 21 of the backup branch can use separate air ducts. Ventilation and heat dissipation, specifically, as shown in Figure 3, the heat dissipation structure may also include an air duct 30 for accommodating the first radiator 12 and the second radiator 22; an air duct partition 31 is arranged in the air duct 30, For separating the air duct 30 into a first space 32 and a second space 33, the first radiator 12 is arranged in the first space 32, the second radiator 22 is arranged in the second space 33; the fan 34 is arranged in The air inlet of the air duct 30. The volume of the heat dissipation structure can be reduced, and the separate air duct space can further isolate the heating module 11 of the main branch and the heating module 21 of the backup branch, minimizing the impact on the heating module 21 of the backup branch. In this embodiment, the air duct partition 31 can be made of heat insulating material, so as to better isolate the heating modules of the two branches.

In an optional embodiment, since the backup branch 20 is in a non-working state or an auxiliary working state most of the time, the heat production is less, while the main branch 10 is in the working state most of the time, and the heat production is relatively large. In order to increase the heat dissipation efficiency of the main branch without affecting the heat dissipation efficiency of the backup branch, in an optional embodiment, as shown in FIG. One end of the duct partition 31 close to the air inlet of the air duct 30 is used to block the air inlet of the second space 33 when the main branch 10 is working, and is used to block the air inlet of the first space 32 when the backup branch 20 is working. . It can further increase the air volume when a certain branch is working, and increase the heat dissipation efficiency.

In order to further increase the heat dissipation efficiency of the radiator, in an optional embodiment, between the first radiator 12 and the heating module 11 of the main branch and between the second radiator 22 and the heating module 21 of the backup branch, there are At least one of thermally conductive silicone, thermally conductive grease, and thermally conductive sheet. Filling the gap between the radiator and the heating module with thermal silica gel, thermal grease or thermal conductive sheet can further increase the heat conduction of the heating module to the radiator and increase the heat dissipation efficiency.

The embodiment of the present invention also provides a reserve system, as shown in FIG. 4 , the reserve system includes a main branch 10 ; a backup branch 20 , and a heat dissipation structure 40 for the reserve system described in the above embodiments.

In an optional embodiment, the reserve system may also include an input branch 50 connected between the input terminals of the main branch 10 and the backup branch 20 and the power supply; an output branch 60 connected between the main branch 10 and the backup branch 20. Between the output end of the backup branch 20 and the load; the third heat sink 51 is arranged on the heating module 52 of the input branch and/or the heating module 62 of the output branch, and is used for heating the heating module 52 of the input branch and the heating module 62 of the output branch. /or the heating module 62 of the output branch performs heat dissipation.

In this embodiment, the so-called reserve system can be a cold reserve system. Since the cold backup branch in the cold reserve system is in a non-working state when the main branch is working normally, it is more susceptible to the heat emitted by the heating module of the main branch. In this embodiment, the cold storage system is used as an example to introduce. Among them, the more common example of the cold storage system is the UPS power supply. The following uses the UPS power supply as an example to describe the embodiment of the present utility model. For specific elaboration, as shown in Figure 5, the UPS power supply includes: a main branch circuit 10, an AC/DC converter (AC/DC converter) 110 on the main branch circuit 10 is provided with a first radiator 12 for It is used to dissipate heat from the heating module of the main branch circuit 10 . The backup branch 20 , the DC/DC converter (DC/DC converter) 210 on the backup branch 20 is provided with a second radiator 22 for cooling the backup branch 20 . Specifically, the UPS power supply is usually used as a reserve energy source. For example, the power supply connected to the UPS power supply is the mains power supply. When the mains power supply is normal, the UPS is equivalent to an AC voltage stabilizer. When the mains power is abnormal, the UPS power supply is powered by the internal battery module, specifically through the DC/DC converter 210 to transform the voltage and supply power to the load. Therefore, the AC/DC converter 110 and the DC/DC converter 210 do not work at the same time, because the AC The /DC converter 110 is in the working state most of the time, and the DC/DC converter 210 is in the non-working state most of the time. If a radiator is shared, the DC/DC converter 210 is always in the non-working state. The influence of a large amount of heat conducted by the /DC converter 110 through the radiator increases the probability of failure of the DC/DC converter 210 in the non-working state. In this embodiment, by isolating the DC/DC converter 210 and the AC/DC converter 110, the first radiator 12 is respectively provided for cooling the AC/DC converter 110, and the second radiator 22 is provided. Dissipating heat from the DC/DC converter 210 can prevent the DC/DC converter 210 from being affected by the AC/DC converter 110 in a non-working state. Probability of failure in non-operating conditions.

In this embodiment, as shown in FIG. 5 , the DC/DC converter 210 and the DC/AC converter 620 which is always in operation do not share a radiator, and the DC/AC converter 620 can be provided with a third radiator 51 separately. The DC/AC converter 620 dissipates heat.

Because the AC/DC converter 110 is in the working state for a long time, it will continue to dissipate heat to the surrounding environment through the first radiator 12. In order to further reduce the impact of the heat generated by the AC/DC converter 110 on the DC/DC converter 210, in In this embodiment, the first heat sink 12 and the second heat sink 22 can be arranged away from each other. Since the non-operating failure rate of electronic components is doubled every time the non-operating temperature rises by 30°C, in this embodiment, The specific relationship between the first radiator 12 and the second radiator 22 can be determined by measuring the temperature around the first radiator 12. Specifically, the second radiator 22 can be set at a temperature maintained at 30°C, 40°C or normal Place setting for room temperature environment. In this embodiment, the second heat sink 22 of the DC/DC converter 21 should be far away from the third heat sink 52 of the DC/AC converter 620 , and meanwhile, the third heat sink 52 should be far away from the first heat sink 12 . The specific setting distance can be determined by measuring the temperature around the third radiator 51 .

Although the embodiments of the present utility model have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present utility model, and such modifications and variations all fall into the scope of the accompanying drawings. within the scope of the claims.

Claims (10)

1. A heat dissipation structure for a reserve system, the reserve system comprising a main branch and a backup branch, characterized in that the heat dissipation structure comprises: The first radiator is arranged on the heating module of the main branch, and is used to dissipate heat from the heating module of the main branch; The second radiator is arranged on the heating module of the backup branch, and is used for dissipating heat from the heating module of the backup branch. 2. The heat dissipation structure for the reserve system according to claim 1, further comprising: an air duct for accommodating the first radiator and the second radiator; an air duct partition, arranged in the air duct, for dividing the air duct into a first space and a second space, the first radiator is arranged in the first space, and the second radiator The device is arranged in the second space; The fan is arranged at the air inlet of the air duct. 3. The heat dissipation structure for the storage system according to claim 2, further comprising: A movable baffle is arranged at one end of the air duct partition close to the air inlet of the air duct, and is used to block the air inlet of the second space when the main branch works, and is used to The air inlet of the first space is blocked when the backup branch works. 4. The heat dissipation structure for a reserve system according to claim 1, wherein the first radiator is far away from the second radiator. 5. The heat dissipation structure for the reserve system according to any one of claims 1-4, characterized in that, between the first radiator and the heating module of the main branch and the second radiator At least one of heat-conducting silica gel, heat-conducting silicone grease, and heat-conducting sheet is arranged between the heat-generating module of the backup branch. 6. A reserve system, characterized in that it comprises: main branch; backup legs; and The heat dissipation structure for the storage system according to any one of claims 1-5. 7. The reserve system according to claim 6, further comprising: an input branch connected between the input ends of the main branch and the backup branch and a power supply; an output branch connected between the output terminals of the main branch and the backup branch and the load; The third heat sink is arranged on the heating module of the input branch and/or the output branch, and is used for dissipating heat from the heating module of the input branch and/or the output branch. 8. The reserve system of claim 7, wherein: The third radiator is remote from the first radiator and the second radiator. 9. The reserve system according to claim 7 or 8, characterized in that, The reserve system is a cold reserve system. 10. The reserve system of claim 9, wherein: The reserve system is an uninterruptible power supply, the heating module of the main branch includes an AC/DC converter, the heating module of the backup branch includes a DC/DC converter, and the heating module of the output branch includes an inverter device.