CN206533653U - A kind of power cell - Google Patents

Abstract

The utility model discloses a power unit, which comprises a supporting frame, a capacitor module, a power module, a radiator and a bus bar assembly; the supporting frame includes a bottom plate, on which a capacitor module and a radiator are placed side by side; the capacitor module is fixedly connected to the bottom plate, and the capacitor module The top is fixedly connected to the busbar assembly; the power module is fixed on the radiator, and the top of the power module is fixedly connected to the busbar assembly; the radiator includes an air duct and an air guide part. The passing direction is defined as the wind direction, and the air guiding part is arranged in the air duct so that at least one cross-sectional area of the air duct perpendicular to the wind direction is smaller than the area of the air inlet of the air duct. The power module and capacitor module in the power unit are integrated design, compact structure, convenient and quick installation and maintenance of each device; by setting the air guide part in the radiator to guide the wind direction, speed up the air flow in the air duct, so that the radiator The heat dissipation speed is faster and the heat dissipation effect is better.

Description

a power unit

technical field

The utility model relates to the field of electrical equipment, in particular to the field of a power unit in which a power module and a capacitor module are integrated.

Background technique

At present, electrical equipment generally adopts a structure in which the power module and the capacitor module are separated. During installation, the power module and the capacitor module need to be installed separately. The docking requirements between the power module and the capacitor module are high, and the operation is inconvenient. It is relatively difficult, prone to assembly errors or manufacturing errors, complex structure, difficult work, inconvenient installation and maintenance, and affects the performance of electrical equipment. In addition, the radiators usually used in electrical equipment are in the form of direct cooling air to the air duct. The heat dissipation speed is slow, the heat dissipation cost is high, and the heat dissipation effect is not ideal.

Utility model content

The purpose of the utility model is to solve the problems in the prior art, to provide a compact structure, the power module and the capacitor module are well matched, and the installation and maintenance are convenient and quick. The power module and the capacitor module are integrated design power unit; the power unit The radiator is equipped with an air guide part for optimizing the air duct. The air guide part can guide the wind direction and accelerate the airflow velocity in the air duct, so that the heat dissipation speed is fast and the heat dissipation effect is good.

In order to achieve the above object, the utility model adopts the following technical solutions:

A power unit, including a support frame, a capacitor module, a power module, a radiator and a busbar assembly; the support frame includes a bottom plate, and the capacitor module and the radiator are placed side by side on the bottom plate; the capacitor module is fixedly connected to the bottom plate, The top of the capacitor module is fixedly connected to the busbar assembly; the power module is fixed on the radiator, and the top of the power module is fixedly connected to the busbar assembly; the radiator includes an air duct and an air guide; the air duct is used for heat dissipation The wind passes in one direction, and the direction through which the heat dissipation wind passes is defined as the wind direction; the air guide part is arranged in the air duct, and a sectional area perpendicular to the wind direction is formed in the air duct and is smaller than the air inlet area of the air duct. section.

Further, the air guiding part is arranged at the bottom of the air duct of the radiator, and the air guiding part is provided with an inclined surface inclined upward along the wind direction at one end close to the air inlet of the air duct.

Further, the support frame also includes side plates and partition plates; the side plates are arranged on both sides of the bottom plate and are perpendicular to the bottom plate; the partition plates are arranged between the two side plates on the bottom plate , and parallel to the side plates; the partition plate and the bottom plate respectively form a capacitor housing part and a radiator housing part with the side plates on both sides of the bottom board, and the capacitor housing part and the radiator housing part are respectively used to accommodate the capacitor module and radiator.

Further, the support frame further includes a fixing plate, the fixing plate is connected to the top end of the side plate located on one side of the heat sink accommodating part, and is perpendicular to the side plate, and the heat sink is placed on the radiator When the radiator accommodating part is installed, the fixing plate is located above the radiator and fixedly connected with the radiator.

Further, the fixing plate may be formed by bending the side plate located on one side of the radiator containing portion.

Further, the capacitor module includes several capacitors, and the support frame also includes a capacitor positioning plate, and the capacitor positioning plate is provided with several through holes, and the capacitor positioning plate is fixed on the separator and located on the The side plate on one side of the capacitor accommodating part is covered on the capacitor accommodating part, and the through hole is used for placing a capacitor.

Further, the heat sink further includes a plurality of heat conduction blades, the heat conduction blades are arranged in the air duct parallel to the wind direction, and the heat conduction vanes are located above the air guide part and perpendicular to the bottom surface of the air duct.

Compared with the prior art, the technical solution described in the utility model has the beneficial effects of:

(1) Since the radiator and the capacitor module are fixed on the bottom plate of the support frame in this technical solution, the power module is fixedly connected to the radiator, and the power module and the capacitor module are connected through the busbar assembly, so that each device module is connected into a A complete power unit with compact structure, reliable connection, and easy installation and maintenance.

(2) The air duct of the radiator is provided with an air guide part, and the air duct is formed with a cross section perpendicular to the wind direction. The area of the cross section is smaller than the area of the air inlet of the air duct. When the passage passes through the air guide part, it can be accelerated to accelerate the flow of air, thereby accelerating the heat dissipation speed of the radiator, and the heat dissipation effect is better.

(3) By setting the side plate and the partition plate on the support frame, the partition plate and the bottom plate of the support frame respectively form two mutually independent spaces with the side plates on both sides, which are respectively used as the capacitor module accommodation part and the radiator accommodation part, so that The radiating air in the radiator only passes through the independent radiator accommodating portion, and is not dispersed into the capacitor module accommodating portion, so that the radiating air is highly concentrated, the heat dissipation speed is faster, and the heat dissipation cost can be reduced at the same time.

(4) The support frame is provided with a fixed plate for fixing the radiator. The fixed plate is arranged on the top of the side plate on one side of the radiator containing part and is perpendicular to the side plate. When the radiator is placed in the radiator containing part, The fixing plate of the supporting frame is located above the radiator and is fixedly connected with the radiator, so that the fixed connection of the radiator on the supporting frame is realized with a simple structure.

(5) The fixing plate on the supporting frame can be formed by directly bending the side plate located on one side of the radiator receiving part, and the production process is simple and easy to realize.

(6) By setting the capacitor positioning plate on the support frame and covering it on the capacitor receiving part, the capacitor in the capacitor module can be inserted through the through hole on the capacitor positioning plate, and then placed on the bottom plate of the support frame The setting of the capacitor positioning plate enables the capacitor to be stably positioned on the support frame, avoiding problems such as shaking of the capacitor during use, thereby preventing device damage caused by the instability of the capacitor.

(7) There are multiple heat conduction blades in the air duct of the radiator. The heat conduction blades are parallel to the wind direction and perpendicular to the bottom surface of the air duct. The heat dissipation area of the radiator is increased, so that the heat dissipation speed of the radiator is accelerated, and the heat dissipation effect is better.

(8) The air guide part is arranged at the bottom of the air duct of the radiator, and is located below the heat conduction vanes. The air guide part is provided with an inclined surface inclined upward along the wind direction at one end close to the air inlet of the air duct, and the inclined surface can guide the cooling air. At the same time, due to the existence of the air guide part, the ventilation area of the air duct is reduced, which is conducive to the acceleration of the heat dissipation wind, thereby accelerating the airflow velocity in the air duct, accelerating the heat dissipation speed, and reducing the heat dissipation cost.

Description of drawings

The accompanying drawings described here are used to provide a further understanding of the utility model and constitute a part of the utility model. The schematic embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an improper limitation of the utility model . In the attached picture:

Fig. 1 is the overall structure schematic diagram of the utility model embodiment;

Fig. 2 is a schematic diagram of the busbar structure of the embodiment of the utility model;

Fig. 3 is a schematic diagram of a support frame and a capacitor structure of an embodiment of the utility model;

Fig. 4 is the structural schematic diagram of the support frame of the embodiment of the utility model;

Fig. 5 is a schematic diagram of a radiator air duct and an air deflector according to an embodiment of the present invention.

detailed description

In order to make the technical problems, technical solutions and beneficial effects to be solved by the utility model clearer and clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

As shown in FIGS. 1 to 5 , in the embodiment of the present invention, the power unit includes a support frame 1 , a capacitor module 2 , a power module 3 , a radiator 4 and a busbar assembly 5 .

Support frame 1 comprises bottom plate 11, side plate 12, dividing plate 13, fixed plate 14 and capacitance positioning plate 15, and capacitor module 2 and radiator 4 are placed side by side on bottom plate 11; Side plate 12 is arranged on the both sides of bottom plate 11, and with The bottom plate 11 is vertical; the partition plate 13 is arranged on the bottom plate 11, between the side plates 12 on both sides of the bottom plate 11, and is parallel to the side plates 12; and the radiator containing part, the capacitor containing part and the radiator containing part are respectively used to accommodate the capacitor module 2 and the radiator 4; the fixing plate 14 is connected to the top of the side plate 12 on one side of the radiator containing part, and is perpendicular to the side plate 12. The fixed plate 14 can be directly bent from the side plate 12 located on the side of the radiator containing part; the capacitor positioning plate 15 is provided with several through holes, and the capacitor positioning plate 15 is fixed on the separator 13 and located in the capacitor containing part. The side plate 12 on one side is covered on the capacitor containing part.

The capacitor module 2 includes several capacitors 21. The through holes on the capacitor positioning plate 15 are used for placing the capacitors 21. The capacitor module 2 is fixedly connected to the bottom plate 11 of the support frame 1. The top of the capacitor module 2 is fixedly connected to the busbar assembly 5. ; Optionally, the capacitor module 2 is fixedly connected to the bottom plate 11 of the support frame 1 through bolts or screws.

The power module 3 is fixed on the radiator 4, and the top of the power module 3 is fixedly connected to the busbar assembly 5; optionally, the power module 3 is locked on the radiator by screws.

Radiator 4 comprises air channel 41, air guide part 42 and heat conduction vane 43, and when radiator 4 was inserted in radiator accommodating part, fixed plate 14 was positioned at the top of radiator 4, and radiator 4 and fixed plate 14 can pass bolt or The screws are locked for fixed connection; the air duct 41 is used for the passage of the heat dissipation wind in one direction, and the direction through which the heat dissipation wind passes is defined as the wind direction. The air duct 41 is provided with a plurality of heat conduction blades 43, and the heat conduction blades 43 are parallel to the wind direction and perpendicular to the wind direction. Set on the bottom surface of the air duct 41; the air guide part 42 is arranged at the bottom of the air duct 41, so that at least one cross section perpendicular to the wind direction is provided in the air duct 41, the area of the cross section is smaller than the area of the air inlet of the air duct 41, and the air guide part 42 is located at the bottom of the air duct 41. Below the heat conduction vanes 43 , the air guide portion 42 is provided with an inclined surface 422 inclined upward along the wind direction at one end close to the air inlet of the air duct 41 .

Using the above embodiment, by fixing the radiator 4 and the capacitor module 2 on the bottom plate 11 of the support frame 1, the power module 3 is fixedly connected to the radiator 4, and the power module 3 and the capacitor module 2 are connected through the busbar assembly 5, Each device module is connected to form a complete power unit, which has compact structure, reliable connection, and is convenient for installation and maintenance.

The air duct 41 of the radiator 4 is provided with an air guide part 42, and the air duct 41 has at least one cross section perpendicular to the wind direction, and the area of the cross section is smaller than the area of the air inlet of the air duct 41. Due to the effect of the air guide part 42, the The radiating air can be accelerated when passing through the air guide part 42 in the air channel 41, and the air flow is accelerated, thereby accelerating the heat dissipation speed of the radiator 4, and the heat dissipation effect is better.

By setting the side plate 12 and the partition plate 13 on the support frame 1, the partition plate 13 and the bottom plate 11 of the support frame 1 and the side plate 12 respectively form two mutually independent spaces, which are respectively used as the capacitor module accommodation part and the radiator accommodation part. , so that the heat dissipation air in the radiator 4 only passes through the independent heat sink accommodating portion, and will not be dispersed into the capacitor module accommodating portion, the heat dissipation air concentration is high, the heat dissipation speed is faster, and the heat dissipation cost can be reduced at the same time.

The support frame 1 is provided with a fixed plate 14 for fixing the radiator 4, the fixed plate 14 is arranged on the top of the side plate on one side of the radiator accommodating portion, and is perpendicular to the side plate 12, when the radiator 4 is placed in the radiator accommodating portion In middle mode, the fixing plate 14 of the support frame 1 is located above the radiator 4 and is fixedly connected with the radiator 4 , so that the fixed connection of the radiator 4 on the support frame 1 is realized with a simple structure.

The fixing plate 14 on the supporting frame 1 can be formed by directly bending the side plate 12 located on one side of the radiator accommodating part, and the production process is simple and easy to realize.

By setting the capacitor positioning plate 15 on the support frame 1 and covering it on the capacitor receiving part, the capacitor 21 in the capacitor module 2 can be inserted through the through hole on the capacitor positioning plate 15, and then placed on the support frame 1 On the bottom plate 11, the setting of the capacitor positioning plate 15 enables the capacitor 21 to be stably positioned on the support frame 1, avoiding problems such as shaking of the capacitor 21 during use, thereby preventing the capacitor 21 from being unstable. Device damage.

The air duct 41 of the radiator 4 is provided with a plurality of heat conduction blades 43, and the heat conduction vanes 43 are all parallel to the wind direction and perpendicular to the bottom surface of the air duct 41. The arrangement of the heat conduction blades 43 can speed up the conduction of the heat generated by the power module 3 to the radiator. In the air duct 41 of the radiator 4, the heat dissipation area of the radiator 4 is increased at the same time, so that the heat dissipation speed of the radiator 4 is accelerated, and the heat dissipation effect is better.

The air guide part 42 is arranged on the bottom of the air channel 41 of the radiator 4, and is located below the heat conduction blade 43. The air guide part 42 is provided with an inclined surface 422 inclined upward along the wind direction at one end close to the air inlet of the air channel 41. The inclined surface 422 can guide the wind direction of the heat dissipation wind, and at the same time, due to the existence of the air guide part 42, the ventilation area of the air duct 41 is reduced, which is conducive to the acceleration of the heat dissipation wind, thereby accelerating the airflow velocity in the air duct 41, accelerating the heat dissipation speed, and reducing the heat dissipation. cost.

The above description describes preferred embodiments of the present invention, but it should be understood that the present invention is not limited to the above-described embodiments and should not be viewed as excluding other embodiments. Through the enlightenment of the utility model, changes made by those skilled in the art in combination with known or prior art and knowledge should also be considered within the protection scope of the utility model.

Claims (7)

1. A power unit, characterized in that it includes a support frame, a capacitor module, a power module, a radiator and a busbar assembly; The support frame includes a base plate, and the capacitor module and the radiator are placed side by side on the base plate; The capacitor module is fixedly connected to the bottom plate, and the top of the capacitor module is fixedly connected to the busbar assembly; the power module is fixed on the radiator, and the top of the power module is fixedly connected to the busbar assembly; The radiator includes an air duct and an air guide part; the air duct is used for passing the heat dissipation wind in one direction, and the direction through which the heat dissipation wind passes is defined as the wind direction; the air guide part is arranged in the air duct, and makes the A section with a cross-sectional area perpendicular to the wind direction smaller than the area of the air inlet of the air duct is formed in the air duct. 2. A power unit according to claim 1, characterized in that: the air guide part is arranged at the bottom of the air duct of the radiator, and the air guide part is near the air inlet of the air duct One end is provided with an inclined surface inclined upward along the wind direction. 3. A power unit according to claim 1 or 2, characterized in that: the support frame further includes side plates and partition plates; the side plates are arranged on both sides of the bottom plate and are perpendicular to the bottom plate The separator is arranged between the two side plates on the bottom plate and is parallel to the side plates; the separator and the bottom plate respectively form a capacitor accommodation portion and a radiator accommodation portion with the side plates on both sides of the bottom plate , the capacitor accommodating part and the radiator accommodating part are respectively used to accommodate the capacitor module and the radiator. 4. The power unit according to claim 3, wherein the support frame further comprises a fixing plate, and the fixing plate is connected to the top end of the side plate located on one side of the radiator accommodating portion, And perpendicular to the side plate, when the radiator is placed in the radiator accommodating part, the fixing plate is located above the radiator and fixedly connected with the radiator. 5 . The power unit according to claim 4 , wherein the fixing plate can be formed by bending the side plate on one side of the radiator receiving portion. 5 . 6. A power unit according to claim 3, characterized in that: the capacitor module includes several capacitors, the support frame also includes a capacitor positioning plate, and the capacitor positioning plate is provided with several through holes, The capacitor positioning plate is fixed on the separator and the side plate on one side of the capacitor containing part, and is covered on the capacitor containing part, and the through hole is used for placing capacitors. 7. A power unit according to claim 6, characterized in that: the heat sink further comprises a plurality of heat conduction blades, and the heat conduction blades are arranged in the air duct parallel to the wind direction, and the heat conduction blades are located at Above the air guide part and perpendicular to the bottom surface of the air duct.