CN213906543U - Power module, power device, and electrical apparatus - Google Patents

Abstract

The utility model discloses a power module, power device and electrical equipment, power module includes filter, power inductance and the power switch tube of electric coupling each other in order to realize all kinds of electric energy conversion to include first base plate, second base plate and first electric connector; the first substrate is provided with a filter device and/or a power switch tube; the second substrate is provided with a power inductor; the first electrical connector establishes an electrical connection relationship between the first substrate and the second substrate and electrically couples the power inductor and the filter device and/or the power switch tube to each other. The utility model discloses split type structure of power module is favorable to reducing the degree of difficulty of power module transportation and assembly to reduce the bearing stress of power base plate when the power level that promotes power device considers the electric equipment dilatation, and be suitable for the diversification that realizes the product through the modular mode.

Description

Power module, power device, and electrical apparatus

Technical Field

The utility model relates to a conversion electrical equipment technical field especially relates to power module, power device and electrical equipment.

Background

In electrical equipment for current transformation, a plurality of modular power units are usually included, and each power unit is operated in parallel to increase the overall power of the electrical equipment.

Taking electrical equipment as an example of a UPS, each power device includes a rectification power module and an inversion power module as a front stage and a rear stage, respectively, and each power module includes a plurality of filters, power inductors, power switching tubes, and the like, which are electrically coupled to each other to realize corresponding current transformation. The rectification power module is used for realizing AC/DC conversion, the inversion power module is used for realizing DC/AC conversion, and the rectification power module and the inversion power module are electrically coupled to form the basic rectification inversion function of the UPS.

In the prior art, each power module generally includes a larger power substrate on which corresponding devices for implementing the current transforming function of the power module are correspondingly carried. As the power demand of the current converting electrical equipment is larger and larger, the power level of a single power device also needs to be increased, and naturally, a larger number of power devices such as power inductors and power switch tubes need to be arranged on a power substrate. The power switching tube has a small volume and a small weight, but has a large heat generation amount, so that a radiator needs to be correspondingly arranged; the power inductor has a small heat value, but the power inductor comprises an iron core and a coil winding, so that the power inductor has larger volume and weight; in addition, the filter device for filtering adopts a filter capacitor and a filter inductor more, and the number of the devices is huge, so that the size and the weight are also at a higher level.

In other words, when the power level of the power device is improved, the volume and the weight of the power module are increased in multiples, so that the difficulty of transportation and assembly is improved, the bearing stress of the power substrate is also improved, and higher requirements are provided for the substrate material and the layout of devices on the board. In addition, the multiple increase of volume and weight also restricts the design space of the power device in terms of shape, construction, size and the like, and is not beneficial to the diversification of products.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome at least a defect or problem that exists among the background art, provide power module, power device and electrical equipment, the split type structure of power module is favorable to reducing the degree of difficulty of power module transportation and assembly to reduce the bearing stress of power base plate when promoting power device's power level for the electrical equipment dilatation, and be suitable for the diversification that realizes the product through the modular mode.

To achieve the above object, a first aspect of the present invention provides a power module, including a filter device, a power inductor and a power switch tube electrically coupled to each other to realize AC/AC conversion or AC/DC conversion or DC/AC conversion; further comprising: the first substrate is provided with the filter device and/or the power switch tube; the second substrate is arranged separately from the first substrate, is relatively fixed with the first substrate, and is provided with the power inductor; a first electrical connection establishing an electrical connection relationship between the first and second substrates and electrically coupling the power inductor and the filter device and/or power switch tube to one another.

In the above technical solution, the corresponding devices included in the power module are distributed on at least two substrates, and the substrates are electrically connected by corresponding electrical connectors to implement the basic current transformation function of the power module. On one hand, devices required to be borne by a single substrate are reduced, the power module is convenient to transport and assemble, and the bearing stress of the substrate is effectively reduced. On the other hand, based on the power module with the split structure, each substrate and the devices thereof are electrically coupled through the electric connecting piece, so that different substrate layouts can be adapted and corresponding current transformation functions can be realized through configuring the shape, the structure and the size of the electric connecting piece. In other words, the substrates of the power module do not need to be located on the same plane as in the prior art, but the substrates can form different spatial layouts according to the requirements of the shape, the structure, the size and the like of the corresponding power device, so that the three-dimensional design space of the power device is not restricted, and the power module is suitable for realizing product diversification through a modular design mode that different electric connectors are matched with the same substrate.

Furthermore, the first substrate is provided with the filter device and a first conductive piece; the second substrate is provided with the power inductor and the power switch tube, and is provided with a second conductive piece corresponding to the first conductive piece; and two ends of the first electric connector are respectively and electrically connected with the corresponding first conductive piece and second conductive piece so as to establish an electric connection relation between the first substrate and the second substrate and electrically couple the power inductor and the power switch tube with the filter device.

In the technical scheme, the first substrate and the second substrate are respectively provided with the conductive pieces, the two ends of the first electric connecting piece are respectively electrically connected with the conductive pieces on the corresponding substrates to establish the electric connection relationship between the substrates, the wiring structure is simple, and mistakes are not easy to make.

Further, the first and second conductive members are each configured as a conductive post electrically connected to the internal circuit of the respective substrate; the first electric connector is configured to be an overcurrent piece with a sheet-shaped structure, and two ends of the overcurrent piece are fixedly connected with the corresponding conductive columns and are in contact with the conductive columns, so that the first electric connector is electrically connected with the first substrate and the second substrate.

In the technical scheme, each conductive piece is constructed into a conductive column which is correspondingly and electrically connected with the circuit in the substrate, the first electric connecting piece is constructed into a flaky overflowing piece, the flaky overflowing piece and the flaky overflowing piece are correspondingly and fixedly connected and contacted to realize the electric connection of the two corresponding substrates and the electric coupling of the corresponding devices, the structure is simple, the first electric connecting piece is not easy to damage, the wiring is attractive, and the process sense is good.

Furthermore, the first substrate is provided with the filter device; the first electric connector establishes an electric connection relation between the first substrate and the second substrate and electrically couples the power inductor and the filter device; further comprising: the third substrate, the first substrate and the second substrate are arranged separately and are fixed relatively, and the power switch tube is arranged on the third substrate; a second electrical connector establishing an electrical connection relationship between the second and third substrates and electrically coupling the power inductor and the power switch tube to each other.

In the technical scheme, the filter device, the power inductor and the power switch tube are respectively positioned on a corresponding substrate, the second substrate is respectively and electrically connected with the other two substrates through the first and second electric connecting pieces to realize the electric coupling of the corresponding devices, the weight and the stress of the single substrate are further reduced, the modularization degree in the power module is improved, and the more diversified substrate layouts can be adapted through configuring the first and second electric connecting pieces which are different from each other.

Further, a first conductive member is arranged on the first substrate, a second conductive member and a third conductive member are arranged on the second substrate, and a fourth conductive member is arranged on the third substrate; the second conductive piece corresponds to the first conductive piece, and the fourth conductive piece corresponds to the third conductive piece; two ends of the first electric connecting piece are respectively and electrically connected with the corresponding first conductive piece and second conductive piece so as to establish an electric connection relation between the first substrate and the second substrate; and two ends of the second electric connecting piece are respectively and electrically connected with the corresponding third conductive piece and fourth conductive piece so as to establish the electric connection relationship between the second substrate and the third substrate.

In the technical scheme, the first substrate and the third substrate are both provided with the conductive pieces, the second substrate is provided with the conductive pieces corresponding to the conductive pieces arranged on the other two substrates, the two electric connection pieces are respectively and electrically connected with the corresponding conductive pieces on the corresponding substrates to establish the electric connection relation of the corresponding substrates, the wiring structure is simple, and mistakes are not easy to occur.

Further, the first, second, third and fourth conductive members are each configured as a conductive post electrically connected to the internal circuit of the respective substrate; the first electric connector and the second electric connector are both configured to be an overcurrent piece with a sheet-shaped structure, and two ends of the overcurrent piece are fixedly connected with the corresponding conductive columns and are in contact with the conductive columns so as to realize the electric connection of the corresponding electric connectors and the corresponding substrates.

In the technical scheme, each conductive piece is constructed into a conductive column which is correspondingly and electrically connected with the circuit in the substrate, each electric connecting piece is constructed into a flaky overflowing piece, the conductive columns and the overflowing pieces are correspondingly and fixedly connected and contacted to realize the electric connection of the corresponding substrate and the electric coupling of the corresponding device, the structure is simple, the electric connecting pieces are not easy to damage, the wiring is attractive, and the process sense is good.

Furthermore, a screw hole is formed in the conductive column, and through holes are formed at two ends of the overcurrent piece; the power module further comprises a screw rod which penetrates through the through hole and the screw hole to fixedly connect the overcurrent piece to the conductive column and enable the overcurrent piece and the conductive column to be in close contact.

Among the above-mentioned technical scheme, will lead electrical pillar and overflow a rigid coupling through the screw rod, simple structure, mechanical connection and electric connection relation are all comparatively stable.

Furthermore, still include the protective cover, it is insulating material and cover and establish the outside of overflowing piece, screw rod and leading electrical pillar.

Among the above-mentioned technical scheme, set up the outside that corresponding structure was located to insulating protection housing, touch electric connector when not only can avoiding the operation and lead to dangerous accident, can also avoid dust, steam to deposit and cause the electric connection relation unstability of the two in the surface that overflows piece and lead to electrical pillar.

To achieve the above object, a second aspect of the present invention provides a power device, which includes a housing and a power module according to any one of the above technical solutions; and each substrate of the power module is fixedly arranged in the shell.

In the above technical solution, the power device adopts the above power module, so that all advantages thereof are inherited.

In order to achieve the above object, a third aspect of the present invention provides an electrical apparatus, which includes a cabinet and a power device as described in the above technical solution; the power device is arranged in the cabinet body.

In the above technical solution, the electrical device adopts the above power device, and thus, all advantages thereof are inherited.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a perspective view of a power module according to embodiment 1 of the present invention;

fig. 2 is another perspective view of the power module according to embodiment 1 of the present invention, in which a protective cover is shown;

fig. 3 is a top view of a power module according to embodiment 1 of the present invention;

fig. 4 is a cross-sectional view of a power module according to embodiment 1 of the present invention, in which an electrical connection structure of an electrical connector and a substrate is shown;

fig. 5 is a perspective view of a power module according to embodiment 2 of the present invention;

fig. 6 is a top view of a power module according to embodiment 2 of the present invention;

fig. 7 is a perspective view of a power device according to embodiment 3 of the present invention;

fig. 8 is an exploded view of a power plant according to embodiment 3 of the present invention;

fig. 9 is a perspective view of the power device according to embodiment 3 of the present invention after the first power module is hidden;

fig. 10 is a plan view of the power device according to embodiment 3 of the present invention after the first power module is hidden.

Description of the main reference numerals:

the first power module 100A, the second power module 100B, the first filter device (second filter device) 111, the first power inductor (second power inductor) 112, the heat sink 113, the first substrate 121, the second substrate 122, the third substrate 123, the conductive post 124, the first electrical connector 131, the second electrical connector 132, the screw 140, the protective cover 150, and the limit buckle 151;

power device 1000, casing 200, upper casing 210, lower casing 220, front shroud 230, back shroud 240, fan 300.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are preferred embodiments of the invention and should not be considered as excluding other embodiments. Based on the embodiment of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention.

In the claims, the specification and the drawings, unless otherwise expressly limited, the terms "first," "second," or "third," etc. are used for distinguishing between different elements and not for describing a particular sequence.

In the claims, the description and the drawings of the present invention, unless otherwise expressly limited, the terms "central", "lateral", "longitudinal", "horizontal", "vertical", "top", "bottom", "inner", "outer", "upper", "lower", "front", "rear", "left", "right", "clockwise", "counterclockwise", "high", "low", and the like, are used to indicate the orientation or positional relationship based on the orientation and positional relationship shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore, the scope of protection of the present invention should not be limited.

In the claims, the description and the drawings of the present application, unless otherwise expressly limited, the term "fixedly connected" or "fixedly connected" is used, which is to be understood broadly, that is, any connection mode without displacement relation or relative rotation relation between the two, that is, including non-detachably fixed connection, integrated connection and fixed connection through other devices or elements.

In the claims, the specification and the drawings, the terms "including", "comprising" and variations thereof, if used, are intended to be inclusive and not limiting.

Example 1

Embodiment 1 provides a first power module 100A with an inversion function, which includes a plurality of first filter devices 111, a first power inductor 112 and a first power switch tube (not shown in the figure) electrically coupled to each other to realize DC/AC conversion. It should be noted that the term "electrically coupled" in the present invention does not only mean that each device or module is simply electrically connected, but also means that each device or module establishes an electrical connection relationship according to a circuit topology and realizes a corresponding circuit function.

Referring to fig. 1 to 4, in the present embodiment, the first power module 100A further includes a first substrate 121, a second substrate 122, a plurality of first electrical connectors 131, a plurality of screws 140, and a plurality of protective covers 150.

The first substrate 121 is provided with the first filter device 111, and the first filter device 111 includes devices for filtering, such as a filter inductor and a filter capacitor. Specifically, the first substrate 121 is provided with a plurality of first conductive members, in this embodiment, a plurality of internal circuits corresponding to the first filter devices 111 are provided in the first substrate 121, the first conductive members are configured as conductive posts 124 electrically connected to the internal circuits of the first substrate 121, and screw holes are further formed in the conductive posts 124.

The second substrate 122 and the first substrate 121 are separately and relatively fixed, and are provided with the first power inductor 112 and a first power switching tube, where the first power switching tube may be an MOS tube, an IGBT tube, or the like. In this embodiment, the second substrate 122 and the first substrate 121 are substantially located on the same horizontal plane, and are disposed in parallel, and the second substrate 122 defines a first area close to the first substrate 121 and a second area far from the first substrate 121. The first power inductor 112 is disposed in the first area, and the first power switch is disposed in the second area, in other words, the first power inductor 112 is disposed close to the first substrate 121, and the first power switch is disposed far from the first substrate 121. In this embodiment, a plurality of heat sinks 113 are disposed in the second region of the second substrate 122, and the first power switch is disposed on a base of the heat sinks 113, so as to transfer heat to the outside through the heat sinks 113 and achieve self heat dissipation and cooling. In a specific structure, the second substrate 122 has a plurality of second conductive members corresponding to the first conductive members of the first substrate 121 one by one, in this embodiment, a plurality of internal circuits corresponding to the first power inductors 112 are disposed in the second substrate 122, the second conductive members are configured as conductive posts 124 electrically connected to the internal circuits of the second substrate 122, and screw holes are also formed in the conductive posts 124. It goes without saying that since the first power inductor 112 and the first power switch are provided on the same substrate 122, the internal wiring of the second substrate 122 must already electrically couple the first power inductor 112 and the first power switch.

The first electrical connector 131 establishes an electrical connection relationship between the first substrate 121 and the second substrate 122 and electrically couples the first power inductor 112, the first power switch tube and the first filter device 111 to each other. In this embodiment, the first electrical connecting member 131 corresponds to the corresponding conductive members of the first substrate 121 and the second substrate 122, and two ends of the first electrical connecting member 131 are electrically connected to the corresponding first conductive member and the second conductive member respectively to establish an electrical connection relationship between the first substrate 121 and the second substrate 122. In a specific structure, the first electrical connector 131 is configured as an overcurrent element having a sheet structure, and two ends of the overcurrent element are provided with via holes and are fixedly connected to and in contact with the corresponding conductive posts 124, so as to realize electrical connection between the corresponding electrical connector and the corresponding substrate.

The number of the screws 140 is twice that of the overcurrent pieces, the screws penetrate through the via holes and the screw holes to fixedly connect the overcurrent pieces to the conductive posts 124 and enable the overcurrent pieces and the conductive posts to be in close contact, the structure is simple, and the mechanical connection and the electrical connection are stable.

The protecting cover 150 corresponds to each flow passage member, and as shown in fig. 2, is made of an insulating material and covers the flow passage member, the screw 140 and the conductive post 124. This can not only avoid touching the electric connector and causing dangerous accident during operation, can also avoid dust, steam to deposit and cause the electric connection of two unstable in the surface that overflows piece and conductive pillar 124. In addition, in the embodiment, a limit buckle 151 adapted to be in limit fit with the flow-passing member to prevent the protective cover 150 from being separated from the flow-passing member is disposed in the protective cover 150, so that the protective cover 150 is more stably mounted, as shown in fig. 4.

It can be seen that the respective devices included in the power module are distributed on the two substrates, and the substrates are electrically connected through the respective electrical connectors to realize the basic current transforming function of the power module. On the one hand, the number of devices required to be carried by a single substrate is reduced, the transportation and the assembly of the power module are convenient, and the bearing stress of the substrate is effectively reduced. On the other hand, based on the power module with the split structure, each substrate and the devices thereof are electrically coupled through the electric connecting piece, so that different substrate layouts can be adapted and corresponding current transformation functions can be realized through configuring the shape, the structure and the size of the electric connecting piece.

For example, when the power module has a size requirement in the height direction of the substrate, two substrates can be arranged to be located on the same horizontal plane as in the present embodiment, and the horizontal sheet-shaped overcurrent member as in the present embodiment is configured to realize electrical connection, and the horizontal distance between the substrates can be adjusted by changing the length of the overcurrent member; when the power module has a size requirement in the extending direction of the substrates (the depth direction or the width direction), the two substrates can be configured into a form of upper and lower staggered arrangement or upper and lower laminated arrangement, and the overcurrent pieces with folded angles are correspondingly configured to realize electric connection, and the vertical distance between the substrates can be adjusted by changing the length of the overcurrent pieces.

In other words, the substrates of the power module do not need to be always located on the same horizontal plane as in the prior art, but the substrates can form different spatial layouts according to the requirements of the shape, the structure, the size and the like of the corresponding power device, so that the three-dimensional design space of the power device is not restricted, and the power module is suitable for realizing product diversification through a modular design mode that different electric connectors are matched with the same substrate.

It should be noted that although the first power module 100A of the present embodiment adopts a structure in which the power inductor and the power switch tube are both disposed on the second substrate 122, it is self-evident that, based on the dual-substrate structure of embodiment 1, the power module of the present invention can also extend to the following other embodiments, and in general, those skilled in the art can perform corresponding configuration according to the weight of each portion: (1) the power switch tube is arranged on the first substrate 121, the power inductor and the filter device are arranged on the second substrate 122, and the first electric connector 131 enables the power inductor and the filter device to be electrically coupled with the power switch tube; (2) the power switch tube and the filter device are both disposed on the first substrate 121, the power inductor is disposed on the second substrate 122, and the first electrical connector 131 electrically couples the power inductor with the filter device and the power switch tube, respectively.

Furthermore, it is understood that although the components of the first power module 100A of the present embodiment are electrically coupled to realize DC/AC conversion and correspond to an inverter function, the present invention can also be applied to power modules with other converting functions, such as AC/AC conversion, AC/DC conversion (as described in embodiment 2), DC/DC conversion, etc.

Example 2

The embodiment 2 of the utility model provides a second power module 100B for realizing rectification function, it includes second filter device 111, second power inductance 112 and the second power switch tube of electric coupling in order to realize AC/DC conversion each other.

Referring to fig. 5 to 6, in the present embodiment, the second power module 100B further includes a first substrate 121, a second substrate 122, a third substrate 123, a plurality of first electrical connectors 131, a plurality of second electrical connectors 132, a plurality of screws 140, and a plurality of protective covers 150 (not shown in fig. 5 to 6).

The second filter device 111 is arranged on the first substrate 121, the second power inductor 112 is arranged on the second substrate 122, the second power switch tube is arranged on the third substrate 123, and the first substrate 121, the second substrate 122 and the third substrate 123 are all arranged in a split mode and are relatively fixed and approximately located on the same horizontal plane. The first electrical connector 131 establishes an electrical connection between the first substrate 121 and the second substrate 122 and electrically couples the second power inductor 112 and the second filter device 111. The second electrical connector 132 electrically connects the second substrate 122 and the third substrate 123 and electrically couples the second power inductor 112 and the second power switch tube to each other.

It can be seen that the structure of the present embodiment is mainly different from that of embodiment 1 in that a three-substrate structure is adopted, the filter device, the power inductor and the power switch tube are respectively located on a corresponding substrate, and the second substrate 122 is respectively and electrically connected with the other two substrates through the first and second electrical connectors (131, 132) to realize electrical coupling of the corresponding devices, so that the weight and stress of a single substrate are further reduced on the basis of the effects of embodiment 1, the modularization degree in the power module is improved, and more diversified substrate layouts can be adapted by configuring the first and second electrical connectors (131, 132) different from each other. Moreover, the relatively complete split-type configuration also facilitates low-cost maintenance and replacement of the substrates and devices thereon.

Further, referring to the structure of embodiment 1, in this embodiment, a first conductive member is disposed on the first substrate 121, a second conductive member and a third conductive member are disposed on the second substrate 122, and a fourth conductive member is disposed on the third substrate 123. The second conductive piece corresponds to the first conductive piece, and the fourth conductive piece corresponds to the third conductive piece. Two ends of the first electrical connector 131 are electrically connected to the corresponding first conductive member and second conductive member, respectively, so as to establish an electrical connection relationship between the first substrate 121 and the second substrate 122. Two ends of the second electrical connector 132 are electrically connected to the corresponding third conductive member and fourth conductive member, respectively, so as to establish an electrical connection relationship between the second substrate 122 and the third substrate 123. Therefore, the first and second electric connecting pieces (131, 132) are respectively and electrically connected with the corresponding conductive pieces on the corresponding substrates to establish the electric connection relationship of the corresponding substrates, the wiring structure is simpler, and errors are not easy to occur.

Still referring to the structure of embodiment 1, in the present embodiment, the first conductive member, the second conductive member, the third conductive member, and the fourth conductive member are each configured as a conductive post 124 electrically connected corresponding to an internal line of the corresponding substrate. The first electrical connector 131 and the second electrical connector 132 are configured as a flow-through component having a sheet-like structure, and two ends of the flow-through component are fixedly connected to and in contact with the corresponding conductive pillars 124, so as to electrically connect the corresponding electrical connectors with the corresponding substrates. Therefore, each conductive member of the present embodiment is configured as a conductive column 124 electrically connected to the internal circuit of the substrate, and each electrical connecting member is configured as a sheet-shaped overcurrent member, which are fixedly connected and contacted to electrically couple the corresponding substrate and the corresponding device, so that the structure is simple, the electrical connecting members are not easily damaged, the connection is beautiful, and the process feel is good.

In addition, it is worth mentioning that other structures and specific arrangements (such as the conductive post 124, the overcurrent element, the screw 140, the protective cover 150, and the like) of the second power module 100B of the present embodiment are implemented correspondingly with reference to embodiment 1, and details of the embodiment are not repeated.

Example 3

Referring to fig. 7 to 10, embodiment 3 of the present invention further provides a power device 1000 having a rectification function and an inversion function, which includes a housing 200, a first power module 100A, a second power module 100B, and a fan 300.

The housing 200 is in a box configuration, and includes an upper housing 210, a lower housing 220, a front cover 230, and a rear cover 240. The upper housing 210 and the lower housing 220 are fastened to each other, and the front cover plate 230 and the rear cover plate 240 are respectively disposed in front of and behind the fastened upper housing 210 and the fastened lower housing 220.

The first power module 100A and the second power module 100B are configured as the power modules of the foregoing embodiments 1 and 2, respectively, and their substrates are fixed in the housing 200, and they are electrically coupled to enable the power apparatus 1000 to implement AC/DC conversion and DC/AC conversion, and are suitable for being part of a modular UPS.

The fan 300 is fixedly disposed on the front cover 230 and configured to supply air and dissipate heat for the first power module 100A and the second power module 100B.

It goes without saying that the power apparatus 1000 of the present embodiment inherits all the advantages thereof since it employs the aforementioned power module.

In a specific structure, each substrate of the first power module 100A and each substrate of the second power module 100B are respectively locked to the inner walls of the lower casing 220 and the upper casing 210 by screws, and each substrate of the two power modules are arranged oppositely, so that the first power switch tube substantially corresponds to the second power switch tube in the vertical direction, the first power inductor substantially corresponds to the second power inductor in the vertical direction, and the first filter device substantially corresponds to the second filter device in the vertical direction, thereby being suitable for simplifying layout difficulty of the substrates and devices inside the power device in the power device formed by electrically coupling the two power modules like this embodiment, and uniformly dissipating heat of the devices which are arranged oppositely and close to each other by the fan 300 arranged on the front cover plate 230, fully utilizing the air flow of the air supply, and realizing a small volume, a high power density, a small size, and a high power density, A simpler heat dissipation scheme and a better heat dissipation effect.

Further, referring to fig. 10, the blowing direction of the fan 300 of the present embodiment is shown by an arrow. It can be seen that, in each power module, the power switch tube (heat sink 113), the power inductor and the filter device, which have sequentially decreasing heat productivity, are sequentially arranged along the air supply direction, and an overcurrent gap, which extends along the air supply direction and is staggered with each other, is formed between each power switch tube (heat sink 113) and each power inductor. With the structure, the air flow passing through the power switch tube (the radiator 113) can still radiate the power inductor, and the air flow not passing through the power switch tube (the radiator 113) can directly blow to the power inductor along the overcurrent gap formed between the power switch tube (the radiator 113) to radiate the power inductor, which is similar to a filter device of the power inductor. Therefore, the air duct structure of the embodiment can make full use of the high temperature difference heat dissipation effect of the cold air blown out by the fan 300, and improve the heat dissipation efficiency.

Example 4

Embodiment 4 also provides an electrical equipment (not shown in the figure), and it includes the cabinet body and the power device 1000 of a plurality of embodiment 3, power device 1000 locates the cabinet is internal, and each power device 1000 parallel operation to make this electrical equipment constitute modular UPS.

It goes without saying that different electrical devices can be formed by configuring different power modules in the power device, which is not an example of the present invention.

The description of the above specification and examples is intended to illustrate the scope of the invention, but should not be construed as limiting the scope of the invention. Modifications, equivalents and other improvements which may be made to the embodiments of the invention or to some of the technical features thereof by a person of ordinary skill in the art through logical analysis, reasoning or limited experimentation in light of the above teachings of the invention or the above embodiments are intended to be included within the scope of the invention.

Claims (10)

1. The power module comprises a filter device, a power inductor and a power switch tube which are electrically coupled with each other to realize AC/AC conversion or AC/DC conversion or DC/AC conversion; it is characterized by also comprising:

the first substrate is provided with the filter device and/or the power switch tube;

the second substrate is arranged separately from the first substrate, is relatively fixed with the first substrate, and is provided with the power inductor;

a first electrical connection establishing an electrical connection relationship between the first and second substrates and electrically coupling the power inductor and the filter device and/or power switch tube to one another.

2. The power module of claim 1, wherein:

the first substrate is provided with the filter device and a first conductive piece;

the second substrate is provided with the power inductor and the power switch tube, and is provided with a second conductive piece corresponding to the first conductive piece;

and two ends of the first electric connector are respectively and electrically connected with the corresponding first conductive piece and second conductive piece so as to establish an electric connection relation between the first substrate and the second substrate and electrically couple the power inductor and the power switch tube with the filter device.

3. The power module of claim 2, wherein: the first and second electrically conductive members are each configured as a conductive post electrically connected correspondingly to an internal circuit of the respective substrate;

the first electric connector is configured to be an overcurrent piece with a sheet-shaped structure, and two ends of the overcurrent piece are fixedly connected with the corresponding conductive columns and are in contact with the conductive columns, so that the first electric connector is electrically connected with the first substrate and the second substrate.

4. The power module of claim 1, wherein:

the first substrate is provided with the filter device, and the first electric connector establishes an electric connection relation between the first substrate and the second substrate and electrically couples the power inductor and the filter device;

further comprising:

the third substrate, the first substrate and the second substrate are arranged separately and are fixed relatively, and the power switch tube is arranged on the third substrate;

a second electrical connector establishing an electrical connection relationship between the second and third substrates and electrically coupling the power inductor and the power switch tube to each other.

5. The power module of claim 4, wherein:

a first conductive piece is arranged on the first substrate, a second conductive piece and a third conductive piece are arranged on the second substrate, and a fourth conductive piece is arranged on the third substrate; the second conductive piece corresponds to the first conductive piece, and the fourth conductive piece corresponds to the third conductive piece;

two ends of the first electric connecting piece are respectively and electrically connected with the corresponding first conductive piece and second conductive piece so as to establish an electric connection relation between the first substrate and the second substrate;

and two ends of the second electric connecting piece are respectively and electrically connected with the corresponding third conductive piece and fourth conductive piece so as to establish the electric connection relationship between the second substrate and the third substrate.

6. The power module of claim 5, wherein:

the first, second, third and fourth electrically conductive members are each configured as electrically conductive posts that are electrically connected correspondingly to internal circuitry of the respective substrate;

the first electric connector and the second electric connector are both configured to be an overcurrent piece with a sheet-shaped structure, and two ends of the overcurrent piece are fixedly connected with the corresponding conductive columns and are in contact with the conductive columns so as to realize the electric connection of the corresponding electric connectors and the corresponding substrates.

7. The power module of claim 3 or 6, wherein: screw holes are formed in the conductive columns, and through holes are formed in two ends of the overcurrent piece;

the power module further comprises a screw rod which penetrates through the through hole and the screw hole to fixedly connect the overcurrent piece to the conductive column and enable the overcurrent piece and the conductive column to be in close contact.

8. The power module of claim 7, wherein: still include the protective cover, it is insulating material and cover and establish the outside of overflowing piece, screw rod and leading electrical pillar.

9. A power device, characterized by: comprising a housing and a power module according to any one of claims 1-8; and each substrate of the power module is fixedly arranged in the shell.

10. An electrical device, characterized in that: comprising a cabinet and a power plant according to claim 9; the power device is arranged in the cabinet body.

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