CN217037811U

CN217037811U - Heat dissipation box and inverter system

Info

Publication number: CN217037811U
Application number: CN202220618524.7U
Authority: CN
Inventors: 王建伟; 黄敏; 方刚; 向军
Original assignee: Goodwe Technologies Co Ltd
Current assignee: Goodwe Technologies Co Ltd
Priority date: 2022-03-21
Filing date: 2022-03-21
Publication date: 2022-07-22
Anticipated expiration: 2032-03-21

Abstract

The utility model relates to the technical field of heat dissipation, in particular to a heat dissipation box and an inverter system. The component of dc-to-ac converter is installed to one of them cavity, and the component can produce a large amount of heats in the operation, is provided with the joint of component in another cavity, and the heat in this cavity is lower for the heat in the cavity of installing the component, forms the endless air current between two cavities, main fan and the ventilation duct, and the endless air current reciprocates between two cavities for the heat in the heat dissipation case is even, can dispel the heat uniformly, and wherein, the main fan that is located two cavity junctions can provide comparatively powerful power, guarantees that the air current flows fully.

Description

Heat dissipation case and dc-to-ac converter system

Technical Field

The utility model relates to the technical field of heat dissipation, in particular to a heat dissipation box and an inverter system.

Background

The inverter is a converter for converting direct current electric energy into constant frequency, constant voltage or frequency and voltage regulation alternating current and consists of an inverter bridge, control logic and a filter circuit. The multifunctional electric grinding wheel is widely applicable to air conditioners, home theaters, electric grinding wheels, electric tools, sewing machines, DVDs, VCDs, computers, televisions, washing machines, range hoods, refrigerators, video recorders, massagers, fans, lighting and the like.

Current dc-to-ac converter includes the box and sets up the components and parts in the box, and the box includes box and lower box, goes up and communicates with each other through the through-hole between box and the lower box, and components and parts generally set up in last box, and the end of a thread is in leading to the lower box from the through-hole, and the lower box mainly is used for the wiring. The components and parts can give off a large amount of heats at the operation in-process, cause the internal heat of last box more, and the heat is less in the lower box, if these heats give off in time, can influence the normal operating of dc-to-ac converter.

At present, a fan is arranged in an upper box body, the fan is arranged at a position close to a side wall in the upper box body, the fan blows air downwards, heat is blown into the lower box body, air flow is disturbed, gas circulation is formed, and heat dissipation is carried out. However, when the fan blows air downwards, due to the fact that the distance from the top of the upper box body to the lower box body is long, and due to blocking of the components, the air force reaches the lower box body slightly, the turbulence effect is not obvious, and the whole heat dissipation is not uniform.

SUMMERY OF THE UTILITY MODEL

Therefore, the present invention is directed to overcome the defect of uneven heat dissipation in the prior art, and provides a heat dissipation box and an inverter system.

In order to solve the above problems, the present invention provides a heat dissipation box, which comprises at least two cavities, which are arranged in sequence; the main fan is arranged at the joint of any two adjacent cavities; is suitable for pumping the air in one cavity to the adjacent other cavity; at least one ventilation channel is arranged at the joint of any two adjacent cavities; and airflow circulation is formed between two adjacent cavities through the main fan and the ventilation channel.

Optionally, two cavities are provided, which are a first cavity and a second cavity respectively; the first cavity is suitable for installing components in the inverter assembly, and the second cavity is suitable for accommodating joints of the components.

Optionally, the first cavity is communicated with a second cavity through the ventilation channel and the main fan, and the second cavity comprises a door capable of opening and closing.

Optionally, the main fan blows air towards the first cavity.

Optionally, the air conditioner further comprises an auxiliary fan, the auxiliary fan is arranged in any one of the cavities, and the blowing direction of the auxiliary fan is the same as the air flow circulation direction.

Optionally, the auxiliary fan is disposed in the first cavity, and a blowing direction of the auxiliary fan is the same as an airflow circulation direction.

Optionally, the main fan is disposed in the second cavity.

Optionally, the air conditioner further comprises an air guide cover arranged on the periphery of the main fan.

Optionally, two ventilation channels are arranged at any one of the joints, and the two ventilation channels are distributed on two sides of the main fan.

The utility model also provides an inverter system which comprises the heat dissipation box.

The utility model has the following advantages:

1. the position of fan is adjusted, main fan sets up the position at first cavity and second cavity junction, and the ventilation passageway sets up the junction at first cavity and second cavity, and the distance of bleeding and blowing all is shortened, and circulating air current power is sufficient, can carry out the vortex fully between two cavities, realizes evenly dispelling the heat.

2. Compared with the prior fan which is arranged at the top of the cavity, the fan is closer to the side wall to generate larger noise. This scheme sets up the passageway of two cavitys of intercommunication in the junction of first cavity and second cavity, sets up the main fan in the passageway, all does not have the hindrance that shelters from of cavity inner wall on main fan convulsions and air supply route, consequently, can the noise abatement's production, promotes the comprehensive properties of product, makes the user obtain good experience.

3. The main fan is arranged in the second cavity with the door and far away from the components in the inverter, so that the interference of the components and cables can be reduced, and the main fan is convenient to disassemble.

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 description of the embodiments or 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 other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic view showing the inside of a heat dissipation box according to a first embodiment of the present invention;

FIG. 2 is a schematic view of a main fan, a mounting plate and an air guiding cover according to a first embodiment of the present invention;

FIG. 3 shows a schematic representation of two annular gas flows of a second embodiment of the utility model;

fig. 4 shows a schematic diagram of two auxiliary fans according to a third embodiment of the present invention.

Description of reference numerals:

1. a first cavity; 2. a second cavity; 3. a main fan; 4. an auxiliary fan; 5. mounting a plate; 6. a wind scooper; 11. a first channel; 12. a second channel; 13. a third channel; 14. a first annular gas flow; 15. a second annular gas flow; 51. a first bolt; 52. and a second bolt.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; 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 meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

Example one

The embodiment I of the utility model discloses an inverter system which comprises a heat dissipation box, wherein the heat dissipation box comprises a plurality of cavities, the cavities are sequentially arranged, a main fan 3 is arranged in each cavity, and the main fan 3 is arranged at the joint of any two adjacent cavities and is suitable for pumping air in one cavity to the other adjacent cavity. The heat dissipation device also comprises at least one ventilation channel which can be arranged at the joint of any adjacent cavity, and airflow circulation is formed in the adjacent cavity through the main fan 3 and the ventilation channel, so that uniform heat dissipation is realized. In this scheme, the joint of the two cavities refers to the joint of the two cavities and the area near the joint in the two cavities. The cavity in this scheme can be the cavity that two independent boxes formed, also can be two cavities that the inside separation of single box formed.

Referring to fig. 1 and 2, the present embodiment preferably has two cavities, and the heat dissipation mode of the heat dissipation box is described. Specifically, the heat dissipation case includes first cavity 1 and second cavity 2, and first cavity 1 prefers to set up in the top of second cavity 2, and of course, in practical application, first cavity 1 can also set up in one side of 2 horizontal directions of second cavity, and the mode that uses first cavity 1 and second cavity 2 to set up from top to bottom in this embodiment is the example, explains this scheme. The junction of the first cavity 1 and the second cavity 2 is provided with a first channel 11 and a second channel 12, the first channel 11 and the second channel 12 are arranged side by side, a part of joints of the first cavity 1 are led into the second cavity 2 through the first channel 11 or the second channel 12, an element of an inverter is installed in the first cavity 1, and joints of the element are suitable for being arranged in the second cavity 2. During operation, the heat in the first chamber 1 is high, and the heat in the second chamber 2 is relatively low because there is no associated heating element in the second chamber 2, and at the same time, the hot air rises and the cold air falls. The heat dissipation box further comprises a main fan 3, the main fan 3 is arranged at the first channel 11 or the second channel 12, the main fan 3 blows air towards the inside of the first cavity 1, annular airflow is formed between the first cavity 1 and the second cavity 2, the air circulates in the inverter, cold air in the second cavity 2 is blown into the first cavity 1, hot air in the first cavity 1 is discharged into the second cavity 2, and the air circulates continuously, so that heat of the first cavity 1 and the second cavity 2 is uniform, and heat dissipation is performed.

In this scheme, first cavity 1 and second cavity 2 are seal structure in the course of the work to reach corresponding waterproof dirt-proof grade, first cavity 1 is suitable for the components and parts of storing the dc-to-ac converter, and the staff can open second cavity 2, carries out the wiring operation. Consequently, the heat in this scheme gives off and relies on the cavity heat dissipation, and main fan 3 bloies, and the inside air current of disturbance dc-to-ac converter is with cold air and hot-air misce bene, realizes even heat dissipation.

First cavity 1 and second cavity 2 all are the cuboid form, and the length of the vertical direction of first cavity 1 is greater than the length of the vertical direction of second cavity 2, generally speaking, the space of first cavity 1 is greater than the space of second cavity 2. Be equipped with the rectangle structure between first cavity 1 and the second cavity 2, link together first cavity 1 and second cavity 2, the rectangle structure can be square metal frame, and the rectangle structure is in the same place with first cavity 1 and the equal welding of second cavity 2. The side wall of the first cavity 1 close to the second cavity 2 and the side wall of the second cavity 2 close to the first cavity 1 are both opened, so as to form a first channel 11 and a second channel 12. In the scheme, the first cavity 1 is communicated with the outside through the first channel 11 and the second channel 12 where the main fan 3 is located, in particular to the second cavity 2; the second cavity 2 is provided with a door (not shown) which can be opened and closed, so that the second cavity 2 can be opened for operations such as wiring and the like.

The main fan 3 may be disposed at the first channel 11 or the second channel 12, and the generated effect is the same, and in this embodiment, the main fan 3 is disposed at the second channel 12 as an example, and the generated heat dissipation effect is described. Specifically, the main fan 3 is disposed in the second cavity 2 and near the second channel 12, and the first channel 11 is a ventilation channel. Be equipped with mounting panel 5 between main fan 3 and the second cavity 2, main fan 3 passes through mounting panel 5 to be fixed on the inner wall of second cavity 2. The mounting plate 5 is L-shaped, a first bolt 51 is arranged between the mounting plate 5 and the second cavity 2, and the bottom edge of the mounting plate 5 is fixed on the inner wall of the second cavity 2 through the first bolt 51; a second bolt 52 is provided between the mounting plate 5 and the main fan 3, and the main fan 3 is fixed to the mounting plate 5 by the second bolt 52. In this scheme, set up to the detachable mode between main fan 3 and the second cavity 2, be convenient for change and maintain main fan 3.

In another embodiment, the mounting plate 5 may be fixed in the second chamber 2 by welding, riveting or bonding, and of course, the main fan 3 may be fixed on the mounting plate 5 by welding, riveting or bonding.

In order to obtain a good direction of the wind blown by the main fan 3 and reduce the wind force dispersion, a wind guiding cover 6 is further provided in the second passage 12, and the wind guiding cover 6 is a rectangular thin plate having a rectangular cross section and both ends in the longitudinal direction thereof are open, and the material is preferably plastic, but may be metal. The wind scooper 6 is arranged on the periphery of the main fan 3, the wind scooper 6 is arranged in the second channel 12, the main fan 3 can be arranged inside one end of the wind scooper 6, and the periphery of the main fan 3 is abutted against the inner wall of the wind scooper 6. When the main fan 3 blows air into the first cavity 1 in the air guiding cover 6, a specific air duct can be formed, the air blown out by the main fan 3 can be blown farther, and a good turbulence effect is obtained. The air blown out by the main fan 3 forms a first annular air flow 14 in the inverter, the first annular air flow 14 passes through the first cavity 1, the first channel 11, the second cavity 2 and the second channel 12, the cold air is continuously sent into the first cavity 1 from the main fan 3 and enters the hot air to be mixed, meanwhile, the hot air in the first cavity 1 is extruded, and the hot air enters the second cavity 2 from the first channel 11 and is mixed with the cold air. Main fan 3 absorbs the cold air in the second cavity 2 at the during operation to blow in to first cavity 1, during the cold air gets into the hot-air, and in the second cavity 2 relatively spacious, do not have numerous components and parts, for in the past with the hot-air blowin the cold-air, vortex effect greatly increased can be more fully even heat.

In another embodiment, the main fan 3 may also be arranged in the first chamber 1 and at the second channel 12, arranged close to the second chamber 2, blowing towards the first chamber 1.

In another embodiment, the main fan 3 may also blow air towards the second cavity 2.

Example two

The second embodiment is different from the first embodiment in that the number of the ventilation passages between the first chamber 1 and the second chamber 2 is different.

As shown in fig. 3, specifically, a third channel 13 is further disposed between the first cavity 1 and the second cavity 2, the first channel 11 is a ventilation channel, the third channel 13 is disposed side by side with the first channel 11 and the second channel 12, and the second channel 12 is located between the first channel 11 and the third channel 13, more specifically, the two ventilation channels are symmetrically distributed on two sides of the main fan 3. The first annular airflow 14 flows among the first channel 11, the second channel 12, the first cavity 1 and the second cavity 2, the main fan 3 blows air and a second annular airflow 15 is formed, and the second annular airflow 15 flows among the second channel 12, the first cavity 1, the third channel 13 and the second cavity 2.

The size of the first cavity 1 and the second cavity 2 in the second embodiment may be unchanged, and the distance between the first channel 11 and the second channel 12 is shortened, so that, compared with the case that only one annular airflow exists in the first embodiment, the second embodiment has two annular airflows, the turbulent flow effect is greatly increased, and the heat is more uniform.

In another embodiment, more ventilation channels may be provided to create more annular air flow and thus more efficient flow disturbance.

EXAMPLE III

The third embodiment is different from the second embodiment in the number of fans.

As shown in fig. 3 and 4, specifically, an auxiliary fan 4 is further disposed in the first cavity 1, and the auxiliary fan 4 is disposed at an end portion far from the second cavity 2 in the first cavity 1 and spaced from the closest side wall. The auxiliary fan 4 blows air towards the second cavity 2, and the auxiliary fan 4 is in the first annular airflow 14, and when the auxiliary fan 4 blows air, the flow direction of the first annular airflow 14 is extended, power is further provided for the first annular airflow 14, the flow of the first annular airflow 14 is accelerated, and the flow is disturbed more sufficiently.

In another embodiment, a second auxiliary fan 4 may be further disposed in the first chamber 1, the auxiliary fan 4 also blows air towards the second chamber 2, and the auxiliary fan 4 is disposed in the second annular airflow 15, when the auxiliary fan 4 blows air, the flow direction of the second annular airflow 15 is extended, so as to provide power for the second annular airflow 15, accelerate the flow of the second annular airflow 15, and disturb the flow more sufficiently.

In the third embodiment, more auxiliary fans 4 may be further provided to accelerate the flow of the second annular airflow 15, so as to fully disturb the flow, and to uniformly disturb the heat.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. This need not be, nor should it be exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the utility model.

Claims

1. The utility model provides a heat dissipation case which characterized in that: the method comprises the following steps:

at least two cavities which are arranged in sequence;

the main fan (3) is arranged at the joint of any two adjacent cavities; is suitable for pumping the air in one cavity to the adjacent other cavity;

at least one ventilation channel is arranged at the joint of any two adjacent cavities;

and airflow circulation is formed between two adjacent cavities through the main fan (3) and the ventilation channel.

2. The heat dissipation case of claim 1, wherein: the number of the cavities is two, namely a first cavity (1) and a second cavity (2); the first cavity (1) is suitable for mounting components in the inverter assembly, and the second cavity (2) is suitable for accommodating joints of the components.

3. The heat dissipation box according to claim 2, characterized in that: the first cavity (1) is communicated with the second cavity (2) through the ventilation channel and the main fan (3), and the second cavity (2) comprises a door capable of opening and closing.

4. The heat dissipation box according to claim 3, characterized in that: the main fan (3) blows air towards the first cavity (1).

5. The heat dissipation case of claim 4, wherein: the air conditioner is characterized by further comprising an auxiliary fan (4), wherein the auxiliary fan (4) is arranged in any one of the cavities, and the blowing direction of the auxiliary fan (4) is the same as the air flow circulation direction.

6. The heat dissipation case of claim 5, wherein: the auxiliary fan (4) is arranged in the first cavity (1), and the blowing direction of the auxiliary fan (4) is the same as the air flow circulation direction.

7. The heat dissipation box according to claim 6, characterized in that: the main fan (3) is arranged in the second cavity (2).

8. The heat dissipation box according to claim 7, characterized in that: the fan is characterized by further comprising an air guide cover (6) arranged on the periphery of the main fan (3).

9. The heat dissipation box according to claim 1 or 8, characterized in that: any one of the joints is provided with two ventilation channels which are distributed on two sides of the main fan (3).

10. An inverter system characterized by: comprising a heat dissipation box according to any of claims 1-9.