Dual-input power supply module and power supply module

Abstract

The utility model discloses a dual-input power supply module and a power supply module group, and relates to the technical field of power supplies. The dual-input power supply module comprises a first power module, a second power module, a fan, a first connector and a second connector. Wherein the first power module and the second power module are arranged on the circuit board. The fan is disposed between the first power module and the second power module. The first connector and the second connector are electrically connected with one end of the selection switch, the other end of the selection switch is electrically connected with the first power module, and the first power module is electrically connected with the second power module.

Description

Technical Field

[0001] The present application relates to the field of power supply technology, and in particular to a dual-input power supply module and a power supply module. Background Art

[0002] With the rapid growth of the server market, the demand for server power supplies has also increased significantly. Server system power requirements have become more stringent and diverse. Currently, the most common server power supply is a single-input power supply. To ensure input source redundancy, the power supply system typically adopts an N+N configuration, resulting in system power consumption of only half the total power supply. To increase power system efficiency, dual-input power supplies are gaining more attention. The power supply itself can achieve input source redundancy, resulting in an N+1 or N+2 power supply configuration, thereby increasing system power efficiency. Dual-input power supplies require two input connectors, which occupy a larger area on the chassis panel, significantly compressing the ventilation area, affecting the cooling system's efficiency and shortening its lifespan. Utility Model Content

[0003] The present application provides a dual-input power supply module and power supply module. The dual-input power supply module can be provided with two connectors that can be connected to different power sources, thereby preventing an unexpected malfunction of one of the power sources from causing the power supply device to fail to supply power. Furthermore, a fan is disposed between the first power module and the second power module of the dual-input power supply, so that when the fan is in operation, it is only subjected to the heat of the first power module or the second power module, which is beneficial for improving the life of the fan and the service life of the dual-input power supply module.

[0004] In a first aspect, the present application provides a dual-input power supply module, comprising a fan, a first power module, a second power module, a first connector, and a second connector, wherein the first power module and the second power module are disposed on a circuit board. The fan is disposed between the first power module and the second power module. The first connector and the second connector are both electrically connected to one end of a selector switch, the other end of the selector switch is electrically connected to the first power module, and the first power module is electrically connected to the second power module.

[0005] In a possible design of the first aspect, the first power module is an AC / DC module, and the second power module is a DC / DC module.

[0006] In a possible design of the first aspect, the first power module includes a PFC inductor and a PFC module, and the PFC inductor and the PFC module are arranged on one side of the fan.

[0007] In a possible design of the first aspect, the second power module includes an LLC module, a resonant inductor, and a transformer, and the LLC module, the resonant inductor, and the transformer are arranged on one side of the fan.

[0008] In a possible design of the first aspect, the selection switch includes a first relay and a second relay, the first connector is electrically connected to the first power module through the first relay, and the second connector is electrically connected to the first power module through the second relay.

[0009] In a possible design of the first aspect, the dual-input power supply module further includes a housing, the circuit board is disposed in the housing, the housing includes a side panel, and the first connector and the second connector are both disposed on the side panel.

[0010] In a possible design of the first aspect, ventilation holes are further provided on the side panels.

[0011] In a possible design of the first aspect, the ventilation hole is provided on one side of the side panel, the first connector and the second connector are provided side by side with the ventilation hole, and the fan is provided facing the ventilation hole.

[0012] In a possible design of the first aspect, the first power module and the second power module are spaced apart along a first direction, and the wind axis of the fan is parallel to the first direction.

[0013] In a second aspect, the present application provides a power module, which includes a power plug-in box and a dual-input power module in the first aspect and any possible design thereof. The power plug-in box is provided with a receiving cavity, and the dual-input power module is arranged in the receiving cavity.

[0014] Beneficial effects of this application:

[0015] This application provides two connectors that can be connected to different power sources, thus avoiding the situation where one of the power sources fails to supply power due to an unexpected situation, causing the first power module and the second power module to stop working. By arranging the fan between the first power module and the second power module, when the fan is operating, whether it is designed to suck air or blow air, it only bears the heat of the first power module or the second power module, which is beneficial to improving the life of the fan and the service life of the dual-input power module. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 A schematic structural diagram of a dual-input power supply module provided in an embodiment of the present application;

[0018] In the picture: 100-dual input power module;

[0019] 110 - first power module; 120 - second power module; 130 - fan; 140 - first connector; 150 - second connector; 160 - selection switch; 170 - housing; 180 - auxiliary module; 190 - circuit board;

[0020] 111-PFC inductor; 112-PFC module; 113-rectifier bridge; 114-bus capacitor;

[0021] 121-LLC module; 122-resonant inductor; 123-transformer;

[0022] 161-first relay; 162-second relay;

[0023] 171- side panel; 172 ventilation hole;

[0024] 191 - first common-mode inductor; 192 - second common-mode inductor; 193 - capacitor; 194 - inductor. DETAILED DESCRIPTION

[0025] The technical solution in this application will be described below with reference to the accompanying drawings.

[0026] In the embodiments of this application, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of this application should not be interpreted as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner.

[0027] In the embodiments of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features.

[0028] It should be understood that the terms used in the description of the various examples herein are for the purpose of describing the particular examples only and are not intended to be limiting. As used in the description of the various examples, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

[0029] In this application, "at least one" means one, two, or more, and "more than one" means more than two. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single or plural items. For example, at least one of a, b, or c can mean: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or plural.

[0030] It should also be understood that in this application, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a sliding connection, a detachable connection, or an integral connection, etc.; it can be a direct connection or an indirect connection through an intermediate medium.

[0031] It will also be understood that the term “comprise” (also known as “includes,” “including,” “comprises,” and / or “comprising”) when used in this specification specifies the presence of stated features, integers, steps, operations, elements, and / or components, but does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0032] It should be understood that references throughout this specification to "one embodiment," "another embodiment," or "a possible design" mean that specific features, structures, or characteristics associated with an embodiment or implementation are included in at least one embodiment of this application. Therefore, the appearance of "in one embodiment of this application," "in another embodiment of this application," or "a possible design" throughout this specification does not necessarily refer to the same embodiment. Furthermore, these specific features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0033] It should also be understood that the specific numerical values mentioned in the embodiments of this application do not limit the specific dimensions of specific features or structures. The relevant numerical values may be provided for ease of explanation or may be the theoretically optimal value of a certain feature. In practice, the relevant dimensions may be within a range of the value, for example, the range may be ±10% of the optimal theoretical value, or ±20% of the optimal theoretical value. In practice, the range that achieves the corresponding technical effect shall prevail.

[0034] The vertical in the embodiments of the present application includes some situations similar to vertical, for example, the angle between lines, lines and planes, and planes is 80° to 100°, which can also be understood as vertical, rather than strictly limiting the angle between the two to 90°. Similarly, the parallel in the embodiments of the present application also includes situations similar to parallel, that is, the angle between lines, lines and planes, and planes is 0° to 10°, which can also be understood as parallel.

[0035] With the rapid development of the server market, the demand for server power supplies has also increased significantly. Server systems have stricter power requirements and more diverse forms. Dual-input power modules with automatic transfer switches (ATS) are becoming increasingly popular. These power supplies can automatically switch between two input power sources according to pre-set conditions. However, since the power supply has switched from a single input to a dual input, the side panel vents are occupied by input connectors, which greatly reduces the vent area, reduces airflow, and causes fan temperatures to rise, significantly shortening fan life.

[0036] In order to solve the above problems, an embodiment of the present application provides a dual-input power supply module. When the input connector occupies the area of the ventilation hole, the position of the fan can be set to reduce the heat borne by the fan, thereby improving the life of the fan and the power supply.

[0037] refer to Figure 1 , Figure 1 This is a schematic diagram of the structure of a dual-input power supply module provided in an embodiment of the present application. Figure 1 As shown, an embodiment of the present application provides a dual-input power module 100, comprising a first power module 110, a second power module 120, a fan 130, a first connector 140, and a second connector 150. The first power module 110 and the second power module 120 are both disposed on a circuit board 190, and the first power module 110 is electrically connected to the second power module 120. The fan 130 is disposed between the first power module 110 and the second power module 120 to dissipate heat for the first power module 110 and the second power module 120. The first connector 140 and the second connector 150 are both electrically connected to one end of a selector switch 160, and the other end of the selector switch 160 is electrically connected to the first power module 110.

[0038] The first power module and the second power module are spaced apart along a first direction, and the wind axis of the fan can be arranged to be parallel to the first direction.

[0039] In the embodiment of the present application, since the first connector 140 and the second connector 150 are both electrically connected to the first power module 110 through the selection switch 160, and the first power module 110 is electrically connected to the second power module 120. By setting the first connector 140 and the second connector 150, the first connector 140 and the second connector 150 can be connected to different power sources, and the selection switch 160 can select the power source connected to one of the first connector 140 and the second connector 150 as the power supply for the first power module 110 and the second power module 120. Compared with a single power supply, the present application sets two connectors, and the two connectors can be connected to different power sources, thereby avoiding the situation where one of the power sources cannot supply power due to an unexpected situation, resulting in the first power module 110 and the second power module 120 not being able to work. It provides a guarantee for the normal operation of the first power module 110 and the second power module 120.

[0040] In the embodiment of the present application, by placing the fan 130 between the first power module 110 and the second power module 120, when the fan 130 blows air, the air flow direction is formed from the second power module 120 to the first power module 110. Specifically, the air flow path is formed from the second power module 120 to the fan 130, then to the first power module 110, and then blown out through the ventilation holes 172 of the housing 170. It can be seen that the fan 130 only bears the heat dissipation of the second power module 120. The housing 170 will be described in detail in subsequent embodiments.

[0041] When fan 130 draws air, it creates a wind direction from the first power module 110 to the second power module 120. Specifically, the air flow path is formed from the first power module 110 to the fan 130, then to the second power module 120, and then blown out through the ventilation holes 172 of the housing 170. It can be seen that fan 130 only bears the heat dissipation of the first power module 110.

[0042] In the related art, the fan 130 is usually set on the side panel 171 on one side of the first power module 110. When the fan 130 is generally designed to absorb air, the fan 130 is located at the air outlet and needs to withstand the heat of the first power module 110 and the second power module 120 at the same time. The higher temperature has a greater impact on the life of the fan 130.

[0043] In this application, when fan 130 is operating, regardless of whether it is designed to suck air or blow air, it only bears the heat from the first power module 110 or the second power module 120. Compared to existing related technologies, the heat borne by fan 130 is reduced by half, thereby significantly improving the lifespan of fan 130. Consequently, the lifespan of dual-input power module 100 is also significantly improved.

[0044] In one embodiment of the present application, a shell 170 is further provided, and the length of the shell 170 is greater than the width of the shell 170 . Figure 1 Shows a partial structure of the housing 170, such as Figure 1 As shown, the circuit board 190 is disposed in the housing 170, and the first connector 140 and the second connector 150 are disposed on the side plate 171 of the housing 170 in the width direction, and the first connector 140 and the second connector 150 are both disposed at the same end of the housing 170, for example, both disposed on the side plate 171. In addition, a ventilation hole 172 is further disposed on the side plate 171 of the housing 170. For example, Figure 1 As shown, the first connector 140 , the second connector 150 and the ventilation hole 172 may be disposed on the same side plate 171 of the housing 170 .

[0045] In the related art, the fan 130 is generally set on the side of the first power module 110 away from the second power module 120, or compared to setting the fan 130 on the side of the second power module 120 away from the first power module 110, in this case, the ventilation hole 172 on the side panel generally needs to be set on the same side of the fan 130 to ensure that heat can be dissipated in time.

[0046] In the embodiment of the present application, since the fan 130 is disposed between the first power module 110 and the second power module 120, the distance between the fan 130 and the side panel 171 is relatively large, and the heat passing through the fan 130 is greatly reduced, the location of the ventilation holes 172 can be more flexible. For example, the ventilation holes 172 can be disposed on the side panel 171 at either end of the housing 170, or at both ends of the housing 170.

[0047] In the embodiments of this application, Figure 1 As shown, taking the ventilation hole 172 as an example, which is provided on the side plate 171 at one end of the housing 170, the side plate 171 is also provided with a first connector 140 and a second connector 150. The ventilation hole 172, the first connector 140 and the second connector 150 can be provided side by side. Figure 1 As shown, the ventilation hole 172 , the second connector 150 and the first connector 140 can be arranged on the side plate 171 in the order of the three. In this case, the fan 130 is arranged facing the ventilation hole 172 , which has a better heat dissipation effect.

[0048] In addition, the positions of the ventilation holes 172, the first connector 140 and the second connector 150 on the side plate 171 can also be changed. Figure 1 The side plate 171 shown in FIG. 1 has the first connector 140, the ventilation hole 172 and the second connector 150 arranged on the side plate 171 in sequence from left to right. Alternatively, Figure 1The second connector 150, the ventilation hole 172 and the first connector 140 are arranged on the side plate 171 in the order from left to right. Figure 1 The side panel 171 shown has the first connector 140, the second connector 150, and the ventilation hole 172 arranged on the side panel 171 from left to right. In other words, the present application does not limit the specific position of the ventilation hole 172 on the side panel 171, and the position of the ventilation hole 172 on the side panel 171 can be flexibly set.

[0049] In one embodiment of the present application, the first power module 110 includes a PFC (Power Factor Correction) inductor 111, a PFC module 112, a rectifier bridge 113, and a bus capacitor 114. The PFC inductor 111, PFC module 112, rectifier bridge 113, and bus capacitor 114 are arranged in parallel along the length of the circuit board 190. The lengths of the PFC inductor 111, PFC module 112, rectifier bridge 113, and bus capacitor 114 are aligned with the length of the circuit board 190.

[0050] The PFC module 112 can be positioned between the PFC inductor 111 and the bus capacitor 114, and the rectifier bridge 113 can be positioned near the PFC inductor 111, the PFC module 112, or the bus capacitor 114. The gap between the PFC inductor 111 and the PFC module 112 can form an air duct, and the gap between the PFC module 112 and the bus capacitor 114 can form an air duct. The direction of the air duct can be set parallel to the first direction and directed toward the fan 130. This allows the air generated by the fan 130 to flow through the air duct, dissipating the heat generated by the aforementioned components.

[0051] The PFC inductor 111 and the PFC module 112 in the first power module 110 are used to implement an AC-DC function. The first power module 110 may also be referred to as an AC-DC module.

[0052] In one embodiment of the present application, the second power module 120 includes an LLC (resonant circuit) module, a resonant inductor 122, and a transformer 123. The LLC module 121, the resonant inductor 122, and the transformer 123 are arranged along the length of the circuit board 190, and the length direction of the LLC module 121, the resonant inductor 122, and the transformer 123 is consistent with the length direction of the circuit board 190. Two LLC modules 121 can be provided, and the resonant inductor 122 is provided between the two LLC modules 121. The transformer 123 is provided at one end of the LLC module 121 and the resonant inductor 122.

[0053] The gaps between the two LLC modules 121 and the resonant inductor 122 can form two air ducts. The gaps between the transformer 123 and the LLC module 121 and the resonant inductor 122 can also form air ducts. The direction of these air ducts can be set parallel to the first direction and arranged toward the fan 130. This allows the air generated by the fan 130 to flow through these air ducts, dissipating the heat generated by the LLC module 121, the resonant inductor 122, and the transformer 123.

[0054] The LLC module 121 , the resonant inductor 122 and the transformer 123 are used to implement a DC / DC function. The second power module 120 may also be referred to as a DC-DC module.

[0055] In the embodiment of the present application, the fan 130 is disposed between the first power module 110 and the second power module 120. Therefore, the specific position between the fan 130 and the components in the first power module 110 and the components in the second power module 120 can also be referred to. Figure 1 Position settings in .

[0056] Specifically, a PFC inductor 111, a PFC module 112, and a bus capacitor 114 are provided on a side of the first power module 110 close to the second power module 120. A rectifier bridge 113 is provided on a side of the first power module 110 away from the second power module 120. An LLC module 121 and a resonant inductor 122 are provided on a side of the second power module 120 close to the first power module 110. A transformer 123 is provided on a side of the second power module 120 away from the first power module 110.

[0057] The fan 130 is positioned in the gap between the first power module 110 and the second power module 120. Specifically, one side of the fan 130 is positioned near the PFC inductor 111, PFC module 112, and bus capacitor 114 in the first power module 110 to cool components that generate high heat. The other side of the fan 130 is positioned near the LLC module 121 and resonant inductor 122 in the second power module 120. Accordingly, the rectifier bridge 113 can be positioned at the end of the PFC module 112 away from the fan 130, and the transformer 123 can be positioned at the end of the LLC module 121 and resonant inductor 122 away from the fan 130.

[0058] Among the above-mentioned devices, the PFC inductor 111 and the PFC module 112 in the first power module 110, and the LLC module 121, the resonant inductor 122 and the transformer 123 in the second power module 120 are all components or modules that generate relatively large amounts of heat. Therefore, the above-mentioned devices are arranged on both sides of the fan 130 so that the fan 130 can dissipate heat from the above-mentioned devices in a timely manner.

[0059] In one embodiment of the present application, the selector switch 160 may be a relay. The first connector 140 is electrically connected to the first power module 110 via a relay, and the second connector 150 is electrically connected to the second power module 120 via a relay. The relay can control whether the first power module 110 is connected to the power source connected to the first connector 140 or the power source connected to the second connector 150. If the power source connected to one connector experiences an abnormality, the relay can switch to the power source connected to the other connector to power the first power module 110, the second power module 120, and other electronic components, ensuring the normal operation of the first power module 110, the second power module 120, and other electronic components.

[0060] It should be noted that the relay connected to the first connector 140 and the relay connected to the second connector 150 can be two independent relays or an integrated relay. For ease of description, the relay connected to the first connector 140 is referred to as the first relay 161, and the relay connected to the second connector 150 is referred to as the second relay 162.

[0061] In one embodiment of the present application, the dual-input power supply further includes an EMI module, wherein the EMI module includes components such as capacitor 193 and inductor 194. Specifically, in this embodiment of the present application, the EMI module includes two common-mode inductors, capacitor 193 and inductor 194. The common-mode inductor in the EMI module is connected to the input terminal of the relay, and capacitor 193 and inductor 194 in the EMI module are connected to the output terminal of the relay. For ease of description, the two common-mode inductors are referred to as first common-mode inductor 191 and second common-mode inductor 192, respectively.

[0062] Specifically, the input end of the first relay 161 is connected to the first connector 140 through the first common mode inductor 191 , and the output end of the first relay 161 is connected to the first power module 110 through the capacitor 193 and the inductor 194 in the EMI module.

[0063] The input end of the second relay 162 is connected to the second connector 150 via the second common-mode inductor 192, and the output end of the second relay 162 is connected to the first power module 110 via the capacitor 193 and inductor 194 in the EMI module. It should be noted that in this embodiment of the present application, the output end of the first relay 161 and the output end of the second relay 162 are connected to the same capacitor 193 and inductor 194.

[0064] The first common-mode inductor 191 can be located on the circuit board 190 between the first connector 140 and the first relay 161, and the second common-mode inductor 192 can be located on the circuit board 190 between the second connector 150 and the second relay 162. The capacitor 193 and the inductor 194 can be located on the circuit board 190 between the first relay 161 and the first power module 110, or between the second relay 162 and the first power module 110, or in the free space around the first relay 161 and / or the second relay 162, so as to minimize the layout of these components.

[0065] In one embodiment of the present application, an auxiliary module 180 is further provided on the circuit board 190 , wherein the auxiliary module 180 may include a control board, an AUX board, a VSB board, an output inductor, etc. The auxiliary module 180 may be provided on the circuit board 190 near the second power module 120 .

[0066] In one embodiment of the present application, a power supply module is further provided, which includes a power supply plug-in box and the dual-input power supply module in any of the above embodiments, wherein the power supply plug-in box is provided with a receiving cavity, and the dual-input power supply module is arranged in the receiving cavity.

[0067] The above is only a specific implementation method of the present application, but the scope of protection of the present application is not limited thereto. Any technician familiar with this technical field can easily think of changes or replacements within the technical scope disclosed in this application, which should be covered by the scope of protection of the present application.

[0068] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0069] Although preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they are aware of the basic inventive concepts. Therefore, the scope of protection of this application includes the preferred embodiments and all changes and modifications that fall within the scope of the embodiments of the present invention.

[0070] This document uses specific examples to illustrate the working principle and implementation method of the dual-input power supply of the present application. The description of the above embodiments is only used to help understand the specific settings and core ideas of the present application. At the same time, for those skilled in the art, based on the ideas of the present application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present application.

[0071] The above content is only a specific embodiment of this application, but the scope of protection of this application is not limited to this. Any changes or replacements within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A dual-input power supply module, characterized in that: include: a first power module and a second power module, wherein the first power module and the second power module are arranged on a circuit board; a fan, wherein the fan is arranged between the first power module and the second power module; A first connector and a second connector, wherein the first connector and the second connector are both electrically connected to one end of a selection switch, the other end of the selection switch is electrically connected to the first power module, and the first power module is electrically connected to the second power module.

2. The dual-input power supply module according to claim 1, characterized in that: The first power module is an AC / DC module, and the second power module is a DC / DC module.

3. The dual-input power supply module according to claim 2, characterized in that: The first power module includes a PFC inductor and a PFC module, and the PFC inductor and the PFC module are arranged on one side of the fan.

4. The dual-input power supply module according to claim 2, characterized in that: The second power module includes an LLC module, a resonant inductor and a transformer, and the LLC module, the resonant inductor and the transformer are arranged on one side of the fan.

5. The dual-input power supply module according to claim 1, characterized in that: The selection switch includes a first relay and a second relay. The first connector is electrically connected to the first power module through the first relay, and the second connector is electrically connected to the first power module through the second relay.

6. The dual-input power supply module according to any one of claims 1 to 5, characterized in that: The dual-input power supply module further includes a housing, and the circuit board is disposed in the housing; The housing includes a side plate, and the first connector and the second connector are both arranged on the side plate.

7. The dual-input power supply module according to claim 6, characterized in that: The side panels are also provided with ventilation holes.

8. The dual-input power supply module according to claim 7, characterized in that: The ventilation hole is arranged on one side of the side plate, the first connector and the second connector are arranged side by side with the ventilation hole, and the fan and the ventilation hole are arranged on the same side.

9. The dual-input power supply module according to claim 1, characterized in that: The first power module and the second power module are spaced apart along a first direction, and the wind axis of the fan is parallel to the first direction.

10. A power supply module, characterized in that: The invention comprises a power supply box and the dual-input power supply module according to any one of claims 1 to 9, wherein the power supply box is provided with an accommodating cavity, and the dual-input power supply module is arranged in the accommodating cavity.

Images