CN212875645U

CN212875645U - Energy storage converter and energy storage system

Info

Publication number: CN212875645U
Application number: CN202021553210.0U
Authority: CN
Inventors: 甄珠; 杨四海; 何永超
Original assignee: Langfang In Power Electric Co ltd; BEIJING IN-POWER ELECTRIC CO LTD
Current assignee: Langfang In Power Electric Co ltd; BEIJING IN-POWER ELECTRIC CO LTD
Priority date: 2020-07-30
Filing date: 2020-07-30
Publication date: 2021-04-02
Anticipated expiration: 2030-07-30

Abstract

The utility model belongs to the energy storage converter field relates to energy storage converter and energy storage system. The energy storage converter comprises a plurality of IGBT units, each IGBT unit is communicated with an IGBT fan assembly, and the IGBT fan assemblies communicated with the IGBT units are mutually independent. The utility model provides a required cooling system of IGBT unit occupy the great technical problem of complete machine volume, reached the technological effect that reduces the space consumption to the complete machine.

Description

Energy storage converter and energy storage system

Technical Field

The utility model belongs to the energy storage converter field particularly, relates to energy storage converter and energy storage system.

Background

The typical energy storage converter is mainly internally composed of components such as an Insulated Gate Bipolar Transistor (IGBT) component, a capacitor component, a filter component, an electrical component such as a Circuit breaker contactor, and a Printed Circuit Board Assembly (PCBA), and the main heating device is the IGBT component. The current energy storage converter mainly has two types in structural design. One is to adopt an integral design scheme, namely, all the device components are separately placed in the cabinet, which is not beneficial to maintenance. The other is a modular layout, namely, the IGBT and the capacitor on each phase are packaged into a power unit module, and the three power unit modules are radiated by a uniform air duct. However, the three power unit modules are in a radiating mode through the uniform air duct, so that the space utilization rate is reduced, the size of the whole machine is increased, and the IGBT radiating is not uniform.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an energy storage converter, the required cooling system of IGBT unit that can solve prior art and provide occupies the great technical problem of complete machine volume.

An embodiment of the utility model provides an energy storage converter, including a plurality of IGBT units, every the IGBT unit all communicates, each with IGBT fan subassembly the IGBT unit communicates IGBT fan subassembly is independent mutually.

The utility model of this aspect has the beneficial effects that:

each IGBT unit is communicated with the independent IGBT fan assembly, so that the IGBT fan assemblies are arranged independently, only the space corresponding to each IGBT unit needs to be occupied, and the space consumption of the whole machine is reduced. When having avoided prior art, a plurality of IGBT units share same great IGBT fan subassembly, the shared space of IGBT fan subassembly not only need occupy the space direct relative with the IGBT unit, need occupy the space that corresponds to between each IGBT unit region moreover, and cause the extravagant problem of cabinet internal space.

In an optional embodiment, each IGBT fan assembly includes an IGBT heat dissipation fan and an IGBT heat dissipation air duct, and each IGBT heat dissipation air duct communicates with one IGBT heat dissipation fan and one IGBT unit.

By configuring one IGBT heat dissipation air channel for each IGBT unit, all the IGBT heat dissipation air channels only need to correspond to the areas of the IGBT units, which need to exchange heat with air in the IGBT heat dissipation air channels, and do not need to correspond to the areas among the IGBT units, so that the transverse space occupied by the IGBT heat dissipation air channels can be reduced. For example, each IGBT unit needs to contact with the airflow to dissipate heat, and the width of each IGBT unit needs to be 300mm, and the IGBT units need to have a space of 150mm, so that the air duct needs to have a total width of 300 × 3+150 × 2 — 1200mm for 3 IGBT units, and if one IGBT fan assembly is directly used for one IGBT unit, the air duct can occupy only a width of 300mm, and only a total width of 300 × 3 — 900mm, thereby saving the width corresponding to each space.

Moreover, since the IGBT cooling fan generally includes a rotating member, and each IGBT unit is separately provided with the IGBT cooling fan, the diameter of the rotating member of the IGBT cooling fan can also be reduced. When the diameter of the rotating member is reduced, the dimension of the member for dissipating heat to the plurality of IGBT cells in at least one direction can be reduced.

For example, if one IGBT radiator fan is used to supply cooling air to a plurality of IGBT units, a fan with a diameter of 700mm may be required, and when the axial direction of the fan is substantially the same as the direction of the IGBT radiator duct, a space occupying at least a circle with a diameter of 700mm in a plane perpendicular to the direction of the air used to cool the IGBT units is required, that is, a space of 350mm is also reserved for installing the fan in addition to the axial direction of the fan. When the axis direction of fan is vertical direction, then can lead to the cabinet body still to reserve this 350 mm's space in the degree of depth direction of cupboard, the space waste is than many. And adopt 3 IGBT cooling fan of diameter 400mm, then can only need reserve 200mm space in above-mentioned direction, can not cause the size waste of the cabinet body in the degree of depth.

If the direction of the heat dissipation channel is vertical and the axial direction of the fan is horizontal, taking the fan with the diameter of 700mm as an example, a space of 350mm needs to be reserved below the horizontal axis of the fan. Although this 350mm height space is not fully occupied by the fan, it is not suitable for placing other components because of shape constraints outside the circular arc-shaped area. And if three fans with the diameter of 400mm are selected, the fan can only occupy 200mm of space below the axis, 150mm of height space is saved, and the utilization rate of the internal space of the cabinet in height is improved.

In an alternative embodiment, the IGBT unit includes a heat sink in communication with the IGBT heat dissipation duct.

In an optional embodiment, the air conditioner further comprises a cabinet body and a back plate connected with the cabinet body, the IGBT unit is mounted on the upper portion inside the cabinet body, and the upper portion of the back plate is provided with a first type of air outlet.

In an alternative embodiment, the IGBT units are arranged in a direction perpendicular to a direction of wind for cooling the IGBT units.

In an alternative embodiment, the IGBT cell is mounted within the cabinet by an IGBT cell mounting plate.

In an optional embodiment, the IGBT unit is connected to an IGBT connecting copper bar located on a side of the IGBT unit facing a front door of the cabinet.

In an optional embodiment, the cabinet further comprises a front door, the front door is connected with the front part of the cabinet body, and the middle upper part of the front door is provided with first-class air inlet meshes.

In optional embodiment, still include qianmen, postnotum, reactance subassembly and reactance fan subassembly, the qianmen is connected with the front portion of the cabinet body, the well lower part of qianmen is equipped with second classification air inlet mesh, the well lower part of postnotum is equipped with second classification exhaust vent, reactance fan subassembly with the reactance subassembly is all installed the internal well lower part of cabinet, the air intake orientation of reactance fan subassembly second classification air inlet mesh, the air outlet orientation of reactance fan subassembly reactance subassembly, second classification exhaust vent sets up the rear of reactance subassembly.

An object of the second aspect of the utility model is to provide an energy storage system, the required cooling system of IGBT unit who solves prior art and provide occupies the great technical problem of complete machine volume.

The energy storage system provided by the utility model of this aspect, including the energy storage converter of any one of the preceding embodiment.

The utility model of this aspect has the beneficial effects that:

the energy storage system provided by the aspect comprises the energy storage converter, so that the technical effect of the energy storage converter is achieved, and the details are not repeated herein.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an energy storage converter according to a first embodiment of the present invention, in which a side plate facing an observer is omitted;

fig. 2 is a perspective view of the energy storage converter according to the first embodiment, as viewed from an oblique front direction, with a side plate omitted;

fig. 3 is a perspective view of the energy storage converter according to the first embodiment, as viewed from an oblique rear direction, in which a rear back plate and a side plate are omitted;

fig. 4 is a partial structural perspective view of the IGBT unit and the IGBT fan assembly in the first embodiment.

Icon: 100-a cabinet body; 110-front door; 111-first category air inlet mesh; 112-second category air inlet mesh; 120-a back panel; 210-IGBT cells; 220-IGBT cooling fan; 230-IGBT connecting copper bar; 240-a heat sink; 250-IGBT unit mounting plate; 310-reactive components; 320-a reactive fan assembly; 400-control means.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. The terms "first type", "second type", "third type", etc. are used for distinction only, and are uniformly described with respect to the same type of component or feature, meaning that the number of the component or feature may be plural, but it is not denied that the number of the component or feature may be one.

Furthermore, the terms "horizontal", "vertical", "suspended", and the like do not imply that the components are required to be absolutely horizontal or suspended, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Some embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.

The first embodiment is as follows:

as shown in fig. 1 to 4, the present embodiment provides an energy storage converter, which includes a plurality of IGBT units 210, each IGBT unit 210 is communicated with an IGBT fan assembly, and the IGBT fan assemblies communicated with the IGBT units 210 are independent from each other.

Each IGBT unit 210 is communicated with an independent IGBT fan assembly, so that the IGBT fan assemblies are arranged independently, and only the space corresponding to each IGBT unit 210 needs to be occupied, and the space consumption of the whole machine is reduced. When having avoided prior art, a plurality of IGBT units 210 share same great IGBT fan subassembly, the shared space of IGBT fan subassembly not only needs to occupy the space directly relative with IGBT unit 210, needs to occupy the space corresponding to region between each IGBT unit 210 in addition, and causes the extravagant problem of the space in the cabinet body 100.

In an alternative embodiment, each IGBT fan assembly includes an IGBT radiator fan 220 and an IGBT radiator air duct, and each IGBT radiator air duct communicates with one IGBT radiator fan 220 and one IGBT unit 210. Specifically, in this embodiment, the IGBT cooling fan 220 is a centrifugal fan.

By configuring one IGBT radiating air duct for each IGBT unit 210, all the IGBT radiating air ducts only need to correspond to the area of the IGBT unit 210 that needs to exchange heat with the air in the IGBT radiating air duct, and do not need to correspond to the area between each IGBT unit 210, so that the lateral space occupied by the IGBT radiating air ducts can be reduced. For example, each IGBT unit 210 needs to have a width of 300mm for heat dissipation by contacting with the airflow, and each IGBT unit 210 needs to have a distance of 150mm, so that the total width of the air duct is 300 × 3+150 × 2 — 1200mm for 3 IGBT units 210, and if one IGBT fan assembly is directly used for one IGBT unit 210, only 300mm of width may be occupied, and only 300 × 3 — 900mm of width may be occupied, so that the width corresponding to each distance is saved.

Moreover, since the IGBT radiator fan 220 generally includes a rotating member, and the IGBT radiator fan 220 is separately provided for each IGBT unit 210, the diameter of the rotating member of the IGBT radiator fan 220 can also be reduced. When the diameter of the rotating member is reduced, the dimension of the member for dissipating heat to the plurality of IGBT cells 210 in at least one direction can be reduced.

For example, if one IGBT radiator fan 220 is used to supply cooling air to a plurality of IGBT units 210, a fan with a diameter of 700mm may be required, and when the axial direction of the fan is substantially the same as the direction of the IGBT radiator duct, a circular space with a diameter of at least 700mm in a plane perpendicular to the direction of the air for cooling the IGBT units 210 is required, that is, a space of 350mm is reserved for installing the fan in addition to the axial direction of the fan. When the axial direction of the fan is vertical, the cabinet 100 still reserves a space of 350mm in the depth direction of the cabinet, and the space is wasted more. And 3 IGBT cooling fans 220 with the diameter of 400mm are adopted, so that the space of 200mm can be reserved in the above direction, and the size waste of the cabinet body 100 in the depth can not be caused.

In an alternative embodiment, the IGBT cell 210 includes a heat sink 240, and the heat sink 240 communicates with the IGBT heat dissipation duct.

By arranging the heat radiator 240, the air flow at the IGBT unit 210, which is sucked by the IGBT radiating air duct, can be increased, the contact area with the IGBT unit 210 is increased, and the path through which the air flow passes is optimized, so that the radiating condition of the IGBT unit 210 can be improved.

In an alternative embodiment, the cabinet 100 and the backplate 120 connected to the cabinet 100 are further included, the IGBT unit 210 is mounted at an upper portion inside the cabinet 100, and the upper portion of the backplate 120 is provided with a first category of air outlet holes (not shown in the figure).

The IGBT unit 210 is disposed on the upper portion of the cabinet 100, which is beneficial to reducing the influence of the heat released by the IGBT unit 210, which is a component with a large heat dissipation, on other components of the cabinet 100 due to the heat passing by other components of the cabinet 100 when moving along with the airflow, and the heat generated by the heat dissipation of the IGBT unit 210 can be directly taken out from the first type of air outlet on the upper portion of the back plate 120 through the airflow, thereby preventing the air temperature in the cabinet 100 from rising too much.

In an alternative embodiment, the IGBT cells 210 are arranged in a direction perpendicular to the direction of the wind for cooling the IGBT cells 210.

With the direction of arranging of IGBT unit 210 with the perpendicular setting of the wind direction that is used for cooling IGBT unit 210, be favorable to for IGBT cooling fan 220 can transversely arrange, the air current of each IGBT cooling fan 220 entrance does not have apparent difference, thereby it is more even to make each IGBT cooling fan 220 send the air current of IGBT unit 210 to through IGBT heat dissipation wind channel respectively, make IGBT unit 210 obtain comparatively unanimous radiating effect.

In an alternative embodiment, the IGBT cell 210 is mounted within the cabinet 100 by an IGBT cell mounting plate 250.

By providing the IGBT-cell mounting board 250, effective support of the IGBT-cell 210 can be achieved.

In an alternative embodiment, the IGBT unit 210 is connected to the IGBT connecting copper bar 230, and the IGBT connecting copper bar 230 is located on a side of the IGBT unit 210 facing the front door 110 of the cabinet 100.

The IGBT connecting copper bar 230 is arranged on the forward side of the IGBT unit 210, so that the front door 110 can be opened to disassemble and assemble the IGBT unit 210, the operation is not required to be carried out around the rear side of the cabinet body 100, and the efficiency of maintenance and repair operation is improved.

In an alternative embodiment, the cabinet further comprises a front door 110, the front door 110 is connected with the front part of the cabinet 100, and the middle upper part of the front door 110 is provided with a first type air inlet mesh 111.

By arranging the first type air inlet mesh openings 111 on the front door 110, an air inlet channel can be provided for the IGBT unit 210 above the inside of the cabinet body 100, so that air for dissipating heat of the IGBT unit 210 flows through fewer components, the temperature rise is smaller, and the heat of the IGBT unit 210 can be absorbed.

In an alternative embodiment, the front door 110 further includes a rear back plate 120, a reactance component 310 and a reactance fan component 320, the middle lower portion of the front door 110 is provided with a second category air inlet mesh 112, the middle lower portion of the rear back plate 120 is provided with a second category air outlet (not shown in the figure), the reactance fan component 320 and the reactance component 310 are both installed at the middle lower portion inside the cabinet 100, an air inlet of the reactance fan component 320 faces the second category air inlet mesh 112, an air outlet of the reactance fan component 320 faces the reactance component 310, and the second category air outlet is arranged behind the reactance component 310.

Through setting up second class air inlet mesh 112, realize carrying out the independent air inlet of cooling air current to reactance subassembly 310, be favorable to guaranteeing that the temperature of reactance subassembly 310's cooling air is lower to improve reactance subassembly 310's heat dispersion, the air-out that directly will follow after reactance subassembly 310 heat absorption from the second class exhaust vent in reactance subassembly 310 rear in addition avoids the heat to gather in cabinet body 100.

In addition, the energy storage converter of this embodiment still includes circuit breaker and controlling means 400, and the circuit breaker passes through the circuit breaker mounting panel and is installing in cabinet 100, and controlling means 400 passes through the controlling means 400 mounting panel and installs in cabinet 100.

The installation process of this embodiment is:

first, sheet metal members such as a breaker mounting plate, an IGBT unit mounting plate 250, and a control device 400 mounting plate are mounted on the cabinet 100.

Next, other electronic devices than the IGBT unit 210 are mounted on the respective mounting boards.

And thirdly, the IGBT heat dissipation fan 220 is connected with the IGBT heat dissipation air duct, and the reactance fan assembly 320 is installed at the rear part of the cabinet 100 and is installed with the rear back plate 120.

Finally, the IGBT unit 210 is installed, the front door 110 is sealed, and the front door 110 is closed before starting up.

The operation principle of the embodiment is as follows:

the cold air enters from the first category air inlet mesh holes 111 and the second category air inlet mesh holes 112 of the front door 110, the cold air in the upper half flows through the radiator 240 and the IGBT heat dissipation air duct under the action of negative pressure generated by the attraction of the IGBT heat dissipation fan 220 to take away the heat of the IGBT unit 210, and is discharged from the first category air outlet holes in the upper part of the back plate 120, and the cold air in the lower half flows through the reactance component 310 under the action of negative pressure generated by the reactance fan component 320 to take away the heat of the reactance component 310, and is discharged from the second category air outlet holes in the lower part of the back plate 120.

Example two:

the energy storage system provided by the embodiment comprises the energy storage converter in any one of the foregoing embodiments.

Since the energy storage system provided by this embodiment includes any one of the energy storage converters described above, the technical effect of any one of the energy storage converters described above is achieved, and details are not described herein.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; for example:

such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. An energy storage converter is characterized by comprising a plurality of IGBT units (210), wherein each IGBT unit (210) is communicated with an IGBT fan assembly, and the IGBT fan assemblies communicated with the IGBT units (210) are mutually independent; each IGBT fan assembly comprises an IGBT heat dissipation fan (220) and an IGBT heat dissipation air duct, and each IGBT heat dissipation air duct is communicated with one IGBT heat dissipation fan (220) and one IGBT unit (210); the IGBT unit (210) comprises a radiator (240), and the radiator (240) is communicated with the IGBT radiating air duct; still include the cabinet body (100) and with backplate (120) that cabinet body (100) are connected, install IGBT unit (210) upper portion in the cabinet body (100), the upper portion of backplate (120) is equipped with first type exhaust vent.

2. The energy storage converter according to claim 1, wherein the IGBT units (210) are arranged in a direction perpendicular to a wind direction for cooling the IGBT units (210).

3. The energy storage converter according to claim 1, wherein the IGBT unit (210) is mounted in the cabinet (100) by means of an IGBT unit mounting plate (250).

4. The energy storage converter according to claim 1, characterized in that said IGBT unit (210) is connected to an IGBT connecting copper bar (230), said IGBT connecting copper bar (230) being located on a side of said IGBT unit (210) facing a front door (110) of the cabinet (100).

5. The energy storage converter according to claim 1, further comprising a front door (110), wherein the front door (110) is connected to the front portion of the cabinet (100), and the middle upper portion of the front door (110) is provided with a first type of air inlet mesh (111).

6. The energy storage converter according to claim 5, further comprising a front door (110), a rear panel (120), a reactance component (310) and a reactance fan component (320), wherein a second category air inlet mesh (112) is arranged at a middle lower portion of the front door (110), a second category air outlet is arranged at a middle lower portion of the rear panel (120), the reactance fan component (320) and the reactance component (310) are both installed at a middle lower portion in the cabinet body (100), an air inlet of the reactance fan component (320) faces the second category air inlet mesh (112), an air outlet of the reactance fan component (320) faces the reactance component (310), and the second category air outlet is arranged behind the reactance component (310).

7. An energy storage system comprising an energy storage converter according to any of claims 1-6.