CN220963476U - Power module assembly and energy storage device - Google Patents

Abstract

The utility model belongs to the technical field of garden tools, and particularly relates to a power module assembly and an energy storage device, wherein the power module assembly comprises: the shell, at least first sidewall of the said shell opens the window; the power module comprises a circuit board and a power device, and one or more power modules are arranged; the heat dissipation module is connected with the circuit board and is arranged on the inner side of the first side wall so that the power module is contained in the shell, and at least part of the structure of the heat dissipation module is exposed out of the shell through the window. The utility model encapsulates the whole power module and part of the structure of the heat dissipation module in the shell, thereby improving the dustproof and waterproof effects.

Description

Power module assembly and energy storage device

Technical Field

The utility model belongs to the technical field of garden tools, and particularly relates to a power module assembly and an energy storage device.

Background

Electric garden instrument need carry out the electric quantity supply when carrying out long-time outdoor operation, and prior art generally adopts fixed basic station to charge garden instrument, however in some environments that do not possess the condition of charging, can only rely on portable energy memory to charge, and the energy memory among the prior art generally installs in indoor, and it is waterproof, dustproof effect not good, if install it on carriers such as pick-up, when encountering bad weather in the open air, produces the trouble easily.

Disclosure of utility model

In view of the above-mentioned drawbacks of the prior art, an object of the present utility model is to provide a power module assembly and an energy storage device capable of improving dustproof and waterproof performances.

To achieve the above and other related objects, the present utility model provides a power module assembly comprising:

the shell, at least first sidewall of the said shell opens the window;

The power module comprises a circuit board and a power device, and one or more power modules are arranged;

The heat dissipation module is connected with the circuit board and is arranged on the inner side of the first side wall so that the power module is contained in the shell, and at least part of the structure of the heat dissipation module is exposed out of the shell through the window.

In an alternative embodiment of the utility model, a first sealing part is arranged between the edge of the window and the heat dissipation module, and the first sealing part is arranged around the window.

In an alternative embodiment of the present utility model, the heat dissipation module includes a heat conduction lining board and a heat dissipation fin, the heat conduction lining board is fixedly connected with the circuit board, and a back side of the heat conduction lining board and the circuit board is fixedly connected with the heat dissipation fin.

In an alternative embodiment of the utility model, the heat radiating fins pass through the window and are exposed outside the shell.

In an alternative embodiment of the present utility model, an edge of the heat conducting lining board protrudes from an edge of the base of the heat dissipating fin and forms a ring-shaped planar area, and the first sealing part is located between the ring-shaped planar area and the first side wall.

In an alternative embodiment of the present utility model, the first side wall is provided with a mounting hole along an edge of the window for mounting the heat conductive lining board, and the mounting hole is located between the first sealing portion and the edge of the window.

In an alternative embodiment of the utility model, a side of the housing opposite the first side wall is provided with a second side wall which is detachably arranged.

In an alternative embodiment of the utility model, a second seal is provided between the second side wall and the housing.

In an alternative embodiment of the utility model, the power module is a DC/DC module, a DC/AC module or an AC/DC module.

To achieve the above and other related objects, the present utility model also provides an energy storage device, including:

At least two power module assemblies, the power module assemblies comprising:

-a housing, at least a first side wall of which is provided with a window;

-a power module comprising a circuit board and a power device, said power module being provided with one or more;

-a heat dissipation module connected to the circuit board and mounted inside the first side wall so that the power module is housed inside the housing, at least part of the structure of the heat dissipation module being exposed outside the housing through the window;

The first side walls of two adjacent power module assemblies are opposite and are arranged at intervals, so that a heat dissipation channel is formed between the two adjacent power module assemblies;

and at least one end of the heat dissipation channel or the heat dissipation channel is internally provided with a heat dissipation fan.

In an alternative embodiment of the utility model, the heat dissipating module includes heat dissipating fins passing through the window and exposed outside the housing.

In an alternative embodiment of the utility model, the heat radiating fins are arranged with their extending direction parallel to the direction of the air flow generated by the heat radiating fan.

To achieve the above and other related objects, the present utility model also provides an energy storage device, including:

a power module assembly, the power module assembly comprising:

-a housing, at least a first side wall of which is provided with a window;

-a power module comprising a circuit board and a power device, said power module being provided with one or more;

-a heat dissipation module connected to the circuit board and mounted inside the first side wall so that the power module is housed inside the housing, at least part of the structure of the heat dissipation module being exposed outside the housing through the window;

The air guide sleeve is positioned on the outer side of the first side wall, the part, exposed to the outer side of the shell, of the heat radiation module is accommodated in the air guide sleeve, openings are formed in two ends of the air guide sleeve, and a heat radiation fan is arranged at least at one end of the air guide sleeve or in the air guide sleeve.

The utility model has the technical effects that: the utility model encapsulates the whole power module and part of the structure of the heat dissipation module in the shell, thereby improving the dustproof and waterproof effects.

Drawings

FIG. 1 is a perspective view of an energy storage device provided by an embodiment of the present utility model;

FIG. 2 is a perspective view of another view of an energy storage device according to an embodiment of the present utility model;

FIG. 3 is an exploded view of a mounting structure for a power module assembly provided by an embodiment of the present utility model;

FIG. 4 is a schematic diagram of a combined structure of a power module assembly according to an embodiment of the present utility model;

FIG. 5 is a top view of a combined structure of a power module assembly provided by an embodiment of the present utility model;

FIG. 6 is a cross-sectional view A-A of FIG. 5;

FIG. 7 is an exploded view of a power module assembly provided by an embodiment of the present utility model;

FIG. 8 is a schematic diagram of an internal structure of one of the power module assemblies according to an embodiment of the present utility model;

FIG. 9 is a schematic diagram of the internal structure of another power module assembly according to an embodiment of the present utility model;

fig. 10 is a perspective view of a power module provided by an embodiment of the present utility model.

Detailed Description

Other advantages and effects of the present utility model will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present utility model with reference to specific examples. The utility model may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present utility model. It should be noted that the following embodiments and features in the embodiments may be combined with each other without conflict.

It should be noted that the illustrations provided in the following embodiments merely illustrate the basic concept of the present utility model by way of illustration, and only the components related to the present utility model are shown in the illustrations, not according to the number, shape and size of the components in actual implementation, and the form, number and proportion of each component in actual implementation may be arbitrarily changed, and the layout of the components may be more complex.

The embodiment of the utility model provides an energy storage device which has a lower center of gravity, can be stably arranged on a carrier, is packaged in an independent sealing cavity, has a good dustproof and waterproof effect, is suitable for outdoor use, can charge garden tools such as a mower, and improves the cruising ability of the garden tools; the following describes the technical scheme of the present utility model in detail with reference to specific examples.

Referring to fig. 1-10, an energy storage device according to an embodiment of the present utility model includes a battery pack 20, a housing 30, a power module assembly 40, a first charging socket and a second charging socket; the cover 30 is mounted on the top surface of the battery pack 20, and encloses a storage cavity with the top surface of the battery pack 20; the power module assemblies 40 are electrically connected with the battery pack 20, and each power module assembly 40 is accommodated in the accommodating cavity and fixedly connected with the top surface of the battery pack 20, i.e. the power module assemblies 40 and the battery pack 20 are arranged along the vertical direction; a first charging socket electrically connected to the power module assembly 40, the first charging socket being mounted to an outer wall of the housing 30 for charging an external device; a second charging socket is electrically connected to the power module assembly 40, and the second charging socket is mounted to the outer wall of the housing 30 for charging the battery pack 20. Of course, in other embodiments, the housing 30 is mounted on a side surface of the battery pack 20, and encloses a housing cavity with the side surface of the battery pack 20, and the power module assembly 40 is housed in the housing cavity, that is, the battery pack 20 and the power module assembly 40 are arranged along a horizontal direction.

In a specific embodiment, the first charging socket may include, for example, a vehicle charging socket 31 and an extension socket 32, where the vehicle charging socket 31 may charge a non-road garden vehicle such as ZTR, the extension socket 32 may be connected to a charging box, the charging box may charge a battery pack of a garden tool such as a blower, specific output power of the vehicle charging socket 31 and the extension socket 32 may be determined according to a power requirement of an external device, for example, in a specific embodiment, power of the vehicle charging socket 31 may be 6KW, and power of the extension socket 32 may be 2KW; the second charging socket may comprise, for example, an ac charging socket 34 for accessing an ac power grid, or a photovoltaic charging socket 35 for accessing a photovoltaic system.

In other embodiments, the socket type may be increased or decreased according to actual requirements. For example, the power module assembly 40 may further include a TYPE-a interface and/or a TYPE-C interface, where the TYPE-a interface and the TYPE-C interface are electrically connected to each other to receive direct current converted from the power module assembly 40, and when the TYPE-a interface and/or the TYPE-C interface are connected to electric equipment, the electric equipment may be charged by the electric equipment, where the electric equipment may be a mobile phone or a tablet, a battery pack with the TYPE-a interface and/or the TYPE-C interface, an adapter with the TYPE-a interface and/or the TYPE-C interface, or an electric tool with the TYPE-a interface and/or the TYPE-C interface.

A display screen 33 may also be provided on housing 30 for displaying real-time operating parameters of the energy storage device or for displaying parameters related to the powered device connected to the energy storage device.

It should be appreciated that most of the weight of the energy storage device comes from the battery pack 20, and the battery pack 20 is arranged below the power module, so that the whole gravity center of the energy storage device can be moved downwards, the stability of the energy storage device is improved, when the energy storage device is mounted on the carrier, the energy storage device is not prone to toppling, the mounting difficulty is reduced, in a further embodiment, the support part 10 is further arranged below the battery pack 20, the support part 10 can separate the battery pack 20 from the floor of the carrier, on one hand, a certain anti-seismic effect is achieved, and on the other hand, the battery pack 20 can be prevented from being subjected to disasters such as water immersion and the like under the outdoor severe environment.

In an alternative embodiment of the present utility model, the support portion 10 is further provided with an opening, and the opening mainly serves to reserve some operation space for the handling tool, for example, when the energy storage device is handled by a forklift, the forklift plate at the front end of the forklift may extend into the opening to handle the energy storage device.

Referring to fig. 3-10, in an alternative embodiment of the present utility model, the power module assembly 40 includes a housing 41, a power module 42, and a heat dissipation module 43; at least a first side wall of the housing 41 is provided with a window 411; the power module 42 comprises a circuit board and a power device, and one or more power modules 42 are arranged; the heat dissipation module 43 is connected with the circuit board, and the heat dissipation module 43 is mounted on the inner side of the first side wall, so that the power module 42 is accommodated in the housing 41, and at least part of the structure of the heat dissipation module 43 is exposed outside the housing 41 through the window 411.

The utility model encapsulates the whole power module 42 and part of the structure of the heat dissipation module 43 in the shell 41, thereby improving the dustproof and waterproof effects, and simultaneously, the utility model exposes the part of the structure of the heat dissipation module 43 outside the shell 41, thereby ensuring the dustproof and waterproof performance and not affecting the heat dissipation performance of the power module 42.

Referring to fig. 10, in an alternative embodiment of the present utility model, the heat dissipation module 43 includes a heat conduction lining plate 431 and a heat dissipation fin 432, the heat conduction lining plate 431 is fixedly connected with the circuit board, and a back side of the heat conduction lining plate 431 and the circuit board is fixedly connected with the heat dissipation fin 432; the heat dissipation fins 432 penetrate through the window 411 and are exposed out of the outer side of the casing 41, heat generated by the power module 42 is transferred to the heat dissipation fins 432 through the heat conduction lining plates 431, the heat dissipation fins 432 dissipate the heat to the outer side of the casing 41, heat is prevented from being gathered in the casing 41, the power module 42 can be arranged more densely, the size of the power module assembly 40 is further reduced, and the energy density of the energy storage device is improved.

Referring to fig. 7 and 10, in an alternative embodiment of the present utility model, a first sealing portion 433 is disposed between the edge of the window 411 and the heat dissipation module 43, and the first sealing portion 433 is disposed around the window 411. Referring to fig. 10, in an alternative embodiment of the utility model, an edge of the heat conducting liner 431 protrudes from a base edge of the heat dissipating fin 432 to form a ring-shaped planar area, and the first sealing portion 433 is located between the ring-shaped planar area and the first sidewall. In a specific embodiment, the first sealing portion 433 may be, for example, a rubber pad, a silicone pad, or a sealant.

Referring to fig. 7 and 10, in an alternative embodiment of the present utility model, the first side wall is provided with a mounting hole along the edge of the window 411 for mounting the heat conducting liner 431, and the mounting hole is located between the first sealing portion 433 and the edge of the window 411, so as to prevent foreign matters from penetrating into the power module 42 from the mounting hole.

Referring to fig. 7, in an alternative embodiment of the present utility model, a second side wall 44 is detachably disposed on a side of the housing 41 opposite to the first side wall, and a second sealing portion 45 is disposed between the second side wall 44 and the housing 41. The second side wall 44 is provided in a detachable structure, so that the power module 42 is convenient to overhaul.

Referring to fig. 4-6, 8, and 9, in an alternative embodiment of the present utility model, three power module assemblies 40 are provided, wherein the power module 42 in two power module assemblies 40 is a DC/DC module 401, and the power module 42 in the other power module assembly 40 is an AC/DC module 402 and a DC/AC module 403. The three power module assemblies 40 may be secured to the battery pack 20, for example, by an aluminum alloy backbone 36, which may further integrate an EVCC module 50 over the aluminum alloy backbone while improving structural stability and reducing the weight of the energy storage device. It should be understood that the types and the number of the power modules 42 are not particularly limited, and may be freely matched according to the requirements of actual design parameters, in this embodiment, the first sidewalls of two adjacent power module assemblies 40 are opposite and spaced apart, so that a heat dissipation channel is formed between the two power module assemblies 40; at least one end of the heat dissipation channel or the heat dissipation channel is provided with a heat dissipation fan 70. The heat dissipation fins 432 are assembled such that the extending direction thereof is parallel to the air flow direction generated by the heat dissipation fan 70. A guide cover 60 is arranged on the outer side of the first side wall of the other power module assembly 40, a part of the heat dissipation module 43 exposed out of the shell 41 is accommodated in the guide cover 60, openings are arranged at two ends of the guide cover 60, and a heat dissipation fan 70 is arranged at least at one end of the guide cover 60 or in the guide cover 60; in a further embodiment, waterproof yarns may be further disposed at both ends of the heat dissipation channel and the air guide sleeve 60 to further improve the waterproof performance. According to the utility model, through the air duct arrangement mode, the installation density of the power module 42 is increased, and meanwhile, the heat radiation performance of the power module 42 is ensured.

In summary, the battery pack 20 is arranged below the power module 42, so that the overall center of gravity of the energy storage device can be moved downwards, the stability of the energy storage device is improved, the energy storage device is not easy to topple when being mounted on a carrier, and the mounting difficulty is reduced; according to the utility model, the battery cells are closely arranged, and the power distribution unit 25 is arranged through the gap between the battery cells and the bottom shell 21, so that the battery pack 20 is more compact in structure, and the overall energy density of the battery pack 20 is improved; the utility model encapsulates the whole power module 42 and part of the structure of the heat dissipation module 43 in the shell 41, thereby improving the dustproof and waterproof effects, and simultaneously, the utility model exposes the part of the structure of the heat dissipation module 43 outside the shell 41, thereby ensuring the dustproof and waterproof performance and not affecting the heat dissipation performance of the power module 42.

The foregoing utility model is merely illustrative of the principles of the present utility model and its effectiveness and is not in limitation of the utility model. Modifications and variations of the above-described utility model may be made by those skilled in the art without departing from the spirit and scope of the utility model. Accordingly, it is intended that all equivalent modifications and variations of the utility model be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.

Claims (13)

1. A power module assembly, comprising:

the shell, at least first sidewall of the said shell opens the window;

The power module comprises a circuit board and a power device, and one or more power modules are arranged;

The heat dissipation module is connected with the circuit board and is arranged on the inner side of the first side wall so that the power module is contained in the shell, and at least part of the structure of the heat dissipation module is exposed out of the shell through the window.

2. The power module assembly of claim 1, wherein a first seal is provided between an edge of the window and the heat sink module, the first seal being disposed around the window.

3. The power module assembly of claim 2, wherein the heat dissipating module comprises a thermally conductive backing plate and heat dissipating fins, the thermally conductive backing plate being fixedly connected to the circuit board, the thermally conductive backing plate being fixedly connected to the heat dissipating fins on a back side of the circuit board.

4. A power module assembly according to claim 3, wherein the heat sink fins pass through the window and are exposed outside the housing.

5. The power module assembly of claim 3, wherein an edge of the thermally conductive liner plate protrudes beyond a base edge of the heat sink fin and forms a ring of annular planar areas, the first seal being located between the annular planar areas and the first side wall.

6. The power module assembly of claim 5, wherein the first sidewall defines a mounting hole along an edge of the window for mounting the thermally conductive liner, the mounting hole being located between the first seal and the edge of the window.

7. The power module assembly of claim 1, wherein a side of the housing opposite the first side wall is provided with a second side wall that is removably disposed.

8. The power module assembly of claim 7, wherein a second seal is provided between the second sidewall and the housing.

9. The power module assembly of claim 1, wherein the power module is a DC/DC module, a DC/AC module, or an AC/DC module.

10. An energy storage device, comprising:

At least two power module assemblies, the power module assemblies comprising:

-a housing, at least a first side wall of which is provided with a window;

-a power module comprising a circuit board and a power device, said power module being provided with one or more;

-a heat dissipation module connected to the circuit board and mounted inside the first side wall so that the power module is housed inside the housing, at least part of the structure of the heat dissipation module being exposed outside the housing through the window;

The first side walls of two adjacent power module assemblies are opposite and are arranged at intervals, so that a heat dissipation channel is formed between the two adjacent power module assemblies;

and at least one end of the heat dissipation channel or the heat dissipation channel is internally provided with a heat dissipation fan.

11. The energy storage device of claim 10, wherein the heat dissipating module includes heat dissipating fins passing through the window and exposed outside the housing.

12. The energy storage device of claim 11, wherein said heat dissipating fins are mounted with their direction of extension parallel to the direction of air flow generated by said heat dissipating fan.

13. An energy storage device, comprising:

a power module assembly, the power module assembly comprising:

-a housing, at least a first side wall of which is provided with a window;

-a power module comprising a circuit board and a power device, said power module being provided with one or more;

-a heat dissipation module connected to the circuit board and mounted inside the first side wall so that the power module is housed inside the housing, at least part of the structure of the heat dissipation module being exposed outside the housing through the window;

The air guide sleeve is positioned on the outer side of the first side wall, the part, exposed to the outer side of the shell, of the heat radiation module is accommodated in the air guide sleeve, openings are formed in two ends of the air guide sleeve, and a heat radiation fan is arranged at least at one end of the air guide sleeve or in the air guide sleeve.