CN220857912U - Inverter - Google Patents

Abstract

The application discloses an inverter, which relates to the technical field of inverters, wherein the inverter comprises a box cover, a radiator and an inductance box, wherein the radiator is of an integrated structure, the radiator is provided with an accommodating space, and one side of the accommodating space along a first direction is provided with an opening; the box cover is arranged at the opening and seals the opening; the inductance box is arranged on the back side of the radiator along the first direction. According to the application, through the radiator with an integrated structure, the functions of accommodating the electric element and radiating are integrated, the heat of the electric element can be directly transferred to the radiator, the heat transfer path is shortened, and the radiating performance of the inverter is enhanced.

Description

Inverter

Technical Field

The application relates to the technical field of inverters, in particular to an inverter.

Background

In the related art, the inverter is mostly divided into a radiator and a box body, an electronic element is accommodated in the box body, heat generated by the electronic element is transferred to the radiator positioned at one side of the box body, and the radiator is used for radiating heat, so that the radiating effect is poor.

Disclosure of utility model

Accordingly, the embodiment of the application is expected to provide an inverter to solve the problem of poor heat dissipation effect of the inverter.

To achieve the above object, an embodiment of the present application provides an inverter including:

The radiator is of an integrated structure and is provided with an accommodating space, and one side of the accommodating space along the first direction is provided with an opening;

the box cover is arranged at the opening and seals the opening;

the inductance box is arranged on the back side of the radiator along the first direction.

In some embodiments, the heat sink comprises a frame disposed on a side of the base plate facing the cover and extending around an edge of the base plate, a base plate surrounding the frame and the base plate into the receiving space, and a plurality of heat dissipating fins connected to a back side of the base plate.

In some embodiments, the inverter includes a side cover, the side covers are disposed on two opposite sides of the radiator along the second direction, the side covers extend along the height direction and at least cover the junction of the case cover and the radiator, wherein the first direction, the second direction and the height direction are perpendicular to each other.

In some embodiments, in a planar projection perpendicular to the second direction, the side cover does not exceed a side of the base plate facing the heat dissipating fins.

In some embodiments, the inductor box extends along the second direction of the substrate, the upper side and the lower side of the inductor box are both provided with the radiating fins, the radiating fins extend along the height direction perpendicular to the inductor box, and the first direction, the second direction and the height direction are perpendicular to each other.

In some embodiments, the heat dissipating fin has a thickness at an end proximate to the base plate that is greater than a thickness at an end distal to the base plate.

In some embodiments, the plurality of heat dissipating fins includes a first fin group and a second fin group, the first fin group is located on a top side of the second fin group, and the first fin group and the second fin group are disposed at intervals therebetween to define the mounting area, and the inductor box is disposed in the mounting area.

In some embodiments, the heat sink further comprises two protection plates disposed on opposite sides of the back side of the substrate, the first fin group, the second fin group, and the inductor box being located between the two protection plates.

In some embodiments, the protection plate is provided with a buckle hand at a position in a height range corresponding to the first fin group.

In some embodiments, the protection plate is provided with at least one vent at a location within a height range corresponding to the installation region.

In some embodiments, the inverter further comprises a support bracket for connecting the inverter to a wall, a spacing region between two fins of the second fin group forms an avoidance region, and a portion of the support bracket is disposed in the spacing region in a penetrating manner and is connected with the substrate.

According to the inverter provided by the embodiment of the application, the functions of accommodating the electric element and radiating are integrated through the radiator with the integrated structure, and the heat of the electric element can be directly transferred to the radiator, so that the heat transfer path is shortened, and the radiating performance of the inverter is enhanced.

Drawings

Fig. 1 is a schematic structural diagram of an inverter according to an embodiment of the present application;

FIG. 2 is an exploded schematic view of FIG. 1;

FIG. 3 is a schematic diagram of the heat sink of FIG. 1;

FIG. 4 is a schematic view of the structure of FIG. 1 from another perspective;

FIG. 5 is a schematic view of the structure of FIG. 1 from another view;

fig. 6 is an enlarged schematic view at a of fig. 1.

Description of the reference numerals

An inverter 1; a case cover 10; a heat sink 20; a housing space 20a; an opening 20b; a frame 21; a substrate 22; a mounting region 22a; an avoidance zone 22b; an inductance outlet hole 22c; a heat radiation fin 23; a first fin group 231; a second fin group 232; a protection fin 233; clasp position 233a; a vent 233b; an inductance box 30; a side cover 40; a support bracket 50; the back plate 60 is hung on a wall.

Detailed Description

Embodiments of the present application are described in further detail below with reference to the accompanying drawings and examples. The following examples are illustrative of the application but are not intended to limit the scope of the application.

In the description of the embodiments of the present application, it should be noted that, directions or positional relationships indicated by terms such as "backside", "lateral", "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "top", etc., are based on those shown in the drawings, are merely for convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the embodiments of the present application. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the embodiments of the present application, the meaning of "plurality" is at least two, that is, includes two and more, for example, two or three, etc., unless specifically defined otherwise.

In describing embodiments of the present application, it should be noted that the term "coupled" should be interpreted broadly, unless otherwise indicated and limited thereto, and may be, for example, fixedly coupled, detachably coupled, or integrally coupled; either mechanically or electrically. The specific meaning of the above terms in embodiments of the present application will be understood in detail by those of ordinary skill in the art.

The inverter can invert direct current into alternating current, which is a key component in the electrical system. The electrical components inside the inverter generate a lot of heat during operation.

In the related art, an inverter is divided into a box body for accommodating an electric element and a heat dissipation part, and the box body and the heat dissipation part are connected, so that heat generated by the electric element is required to be transferred to the heat dissipation part through the box body, and the heat dissipation effect is poor.

To this end, an embodiment of the present application provides an inverter 1, referring to fig. 1 and 2, the inverter 1 includes a radiator 20, a case cover 10, and an inductor box 30.

The inverter 1 may be, for example, a photovoltaic inverter, which is a current inverter for a photovoltaic system, which mainly functions to store direct-current electric energy into a battery, and also converts electric energy stored in the battery into alternating-current electric energy.

The heat sink 20 is of an integral structure, and the heat sink 20 has an accommodating space 20a, and one side of the accommodating space 20a along the first direction has an opening 20b. It is to be understood that the first direction refers to a direction perpendicular to the up-down direction of the inverter 1 and the left-right direction of the inverter 1, i.e., the front-rear direction of the inverter 1 after the inverter 1 is mounted on a wall. That is, the opening 20b is located in front of the inverter 1.

The cover 10 is disposed at the opening 20b and closes the opening 20b. When the cover 10 closes the opening 20b of the radiator 20, a seal ring may be provided therebetween to seal a gap between the edge of the cover 10 and the wall surface of the opening 20b, and the waterproof level after the cover 10 covers the opening 20b of the radiator 20 may be raised, for example, the waterproof level may be up to IP65 (full: ingress Protection 65, that is, completely dust-proof and water intrusion by injection may be prevented).

The accommodation space 20a is for accommodating electronic components of the inverter 1, for example, a circuit board or the like.

The inductor box 30 is disposed on the back side of the heat sink 20 along the first direction. It is understood that the back side refers to the side near the wall after the inverter 1 is mounted to the wall, i.e., the rear in the front-rear direction of the inverter 1.

The inductor box 30 accommodates therein an inductor element, which is an important functional device in the inverter circuit, and generates a large amount of heat during operation.

In addition, since a large amount of heat is generated from the electric components, such as chips, inside the housing space 20a of the inverter 1 during operation, the inverter 1 needs to perform efficient heat dissipation.

In the inverter 1 provided by the embodiment of the application, the radiator 20 is of an integrated structure, so that the side wall of the accommodating space 20a can radiate heat, the radiating area of the radiator 20 is increased, and the radiating effect can be improved. The radiator 20 integrates the functions of accommodating electric elements and radiating heat, and in the process of generating, the radiator 20 only needs to be provided with a set of mould, so that the mould cost is saved, and the assembly process of the inverter 1 is simplified.

In the inverter 1 provided by the embodiment of the application, since the inductance box 30 is arranged outside the inverter 1, the influence of heat generated by the inductance element in the inductance box 30 on the electronic element in the accommodating space 20a can be effectively reduced.

In some embodiments, referring to fig. 2, the heat sink 20 includes a frame 21, a base plate 22 and a plurality of heat dissipation fins 23, the frame 21 is disposed on a side of the base plate 22 facing the case cover 10 and extends around an edge of the base plate 22, the frame 21 and the base plate 22 enclose an accommodating space 20a, and the heat dissipation fins 23 are connected to a back side of the base plate 22, i.e. a side of the base plate 22 facing away from the accommodating space 20 a.

Through a plurality of radiating fins 23 that set up at the dorsal part of base plate 22, the heat that the electrical component produced of during operation of dc-to-ac converter 1 can pass through base plate 22 fast and transmit to radiating fin 23 on, and then with heat discharge, improved thermal transfer efficiency, can dispel the heat fast in order to reduce the damage probability of lasting overheated to electrical component.

For example, the distribution density of the heat radiating fins 23 may be determined according to the distribution of the electric components generating high temperature inside the inverter 1. Illustratively, in the area where the high-temperature electrical components inside the inverter 1 are intensively arranged, the distribution density of the heat dissipation fins 23 in the area corresponding to the substrate 22 is high, and the distribution density of the heat dissipation fins 23 is reasonably arranged, so that the heat dissipation performance of the heat sink 20 is effectively improved.

In some embodiments, referring to fig. 2, the inverter 1 includes a side cover 40, two opposite sides of the radiator 20 along the second direction are provided with the side cover 40, the side cover 40 extends along the height direction and at least covers the connection between the box cover 10 and the radiator 20, wherein the first direction, the second direction and the height direction are perpendicular to each other.

The second direction refers to a direction perpendicular to the height direction of the radiator 20 and the front-rear direction of the radiator 20, that is, the left-right direction of the radiator 20 after the inverter 1 is mounted on the wall. That is, the side covers 40 are provided at both left and right sides of the heat sink 20.

It can be appreciated that the side cover 40 covers the junction of the case cover 10 and the radiator 20, increasing the aesthetic appearance of the inverter 1. In addition, a part of the radiator 20 can be shielded to a certain extent, so that the probability of scalding the user by the radiator 20 is reduced.

The height direction refers to a direction perpendicular to the front-rear direction of the radiator 20 and the left-right direction of the radiator 20, that is, the up-down direction of the radiator 20 after the inverter 1 is mounted on the wall.

In some embodiments, referring to fig. 5, in a plane projection perpendicular to the second direction, the side cover 40 does not exceed a side of the base plate 22 facing the heat dissipation fins 23. That is, the side of the side cover 40 close to the heat radiating fin 23 in a planar projection perpendicular to the second direction is at most flush with the root of the heat radiating fin 23. In this way, the side cover 40 does not affect the heat radiation performance of the inverter 1 while increasing the aesthetic appearance.

In some embodiments, referring to fig. 3, the inductor box 30 extends along the second direction of the substrate 22, and the upper side and the lower side of the inductor box 30 are provided with heat dissipation fins 23.

In the related art, the inductor box accommodates the inductor which continuously generates heat, and an inverter with an external inductor box is adopted, so that a protection mechanism of the inductor box is additionally arranged, the inductor box is prevented from being exposed on the back side of the inverter, and after the inverter is installed on a wall body, a user is injured due to the fact that the user touches the high-temperature inductor box by mistake.

According to the inverter 1 provided by the embodiment of the application, the radiating fins 23 are arranged on the upper side and the lower side of the inductance box 30, and the radiating fins 23 protect the inductance box 30, so that the protection function is further integrated.

The heat dissipation fins 23 are lower than the surface of the inductor box 30, and the heat dissipation fins 23 are provided on either side of the inductor box 30 to form a guard band. That is, the heat dissipation fin 23 of the embodiment can satisfy heat dissipation on one hand, and on the other hand, the heat dissipation fin 23 can also play a role in protection, so that the thermal safety performance of the inverter 1 is improved, and no additional protection mechanism is required to be arranged on the inductor box, so that the manufacturing cost is low.

In some embodiments, referring to fig. 3, the heat dissipation fins 23 extend along a height direction, wherein the first direction, the second direction and the height direction are perpendicular to each other. Therefore, the air flow channels extending along the height direction are arranged between the two adjacent radiating fins 23, so that hot air flow can naturally rise along the air flow channels, and the radiating effect is improved. In the embodiment in which the inductance box 30 extends along the second direction, the airflow channels of two adjacent heat dissipation fins 23 are perpendicular to the extending direction of the inductance box 30, and the hot air generated by the inductance box 30 flows into the atmosphere along the multiple airflow channels, so that heat dissipation of the inductance box 30 is accelerated, and heat dissipation performance of the inductance box 30 is improved.

In some embodiments, referring to fig. 6, the thickness of the heat dissipation fin 23 near the end of the substrate 22 is greater than the thickness of the end far from the substrate 22. In this way, the weight of the heat radiating fins 23 can be reduced without reducing the contact area of the heat radiating fins 23 with air.

In some embodiments, referring to fig. 3, the plurality of heat dissipation fins 23 includes a first fin set 231 and a second fin set 232. The first fin group 231 includes a plurality of heat dissipation fins 23, and the second fin group 232 also includes a plurality of heat dissipation fins 23. That is, of all the heat radiating fins 23, one is divided into the first fin group 231 and the other is divided into the second fin group 232.

The first fin group 231 is located at the top side of the second fin group 232 with a space therebetween to define a mounting region 22a, and the inductor box 30 is disposed in the mounting region 22 a.

It will be appreciated that the mounting region 22a is associated with the position of the inductor box 30, and that as the position of the inductor box 30 changes, the position of the mounting region 22a also changes accordingly as desired. That is, the positions of the first fin group 231 and the second fin group 232 also need to be changed accordingly as the position of the inductor box 30 is changed.

In some embodiments, referring to fig. 4, the heat sink 20 further includes two protection plates 233, the two protection plates 233 are disposed on opposite sides of the back side of the substrate 22, and the first fin group 231, the second fin group 232 and the inductor box 30 are located in the middle of the two protection plates 233. In this way, either side of the inductor box 30 is protected, further reducing the risk of injury to the user from a false touch to the inductor box 30.

The lateral direction refers to a direction perpendicular to the front-rear direction of the substrate 22 and the top-bottom direction of the substrate 22, that is, the left-right direction of the substrate 22 after the inverter 1 is mounted on a wall.

In some embodiments, referring to fig. 4, the inductor box 30 is disposed at a lower portion of the back side of the substrate 22. In this way, in the case where the electric components in the accommodation space 20a of the inverter 1 are uniformly distributed, the center of gravity of the inverter 1 is moved downward by disposing the inductor box 30 at the lower portion of the back side of the substrate 22.

In some embodiments, referring to fig. 5, a buckling position 233a is disposed on a portion of the protection plate 233 within a height range corresponding to the first fin set 231.

The catch 233a refers to a structure for grasping or lifting the inverter 1. That is, the heat sink 20 of the inverter 1 is provided with the catch 233a, which facilitates the handling of the inverter 1 before the inverter 1 is not mounted on the wall, and also facilitates the operations such as the maintenance or replacement of the inverter 1 after the inverter 1 is mounted on the wall.

The catch 233a is located within a height range corresponding to the first fin group 231. That is, the catch 233a is located above the inductor box 30 such that the catch 233a is close to the center of gravity of the inverter 1 or above the center of gravity of the inverter 1. In this way, a large overturning moment is not generated when lifting the inverter 1, the protection fins 233 are uniformly stressed and are not easy to deform, and the service life is prolonged.

The thickness of the protection board 233 is not limited, and can be set according to the strength requirement of the button hand 233a, so that when a user lifts the inverter 1 by using the button hand 233a, the protection board 233 does not deform obviously, the strength of the protection board 233 is improved, and the service life is prolonged.

In some embodiments, referring to fig. 5, at least one ventilation opening 233b is disposed on a portion of the protection plate 233 within a height range corresponding to the installation area 22 a. It can be appreciated that the ventilation openings 233b are located in a corresponding height range of the inductor box 30 where the protection plate 233 is located, so that the air circulation speed near the inductor box 30 is increased, thereby improving the heat exchange efficiency between the inductor box 30 and the atmosphere, reducing the temperature of the surface of the inductor box 30, reducing the risk of injury caused by the user touching the inductor box 30 by mistake, and improving the thermal safety performance of the inverter 1.

The number of the ventilation openings 233b is not limited and may be one or more. Illustratively, a serrated ventilation region comprising a plurality of ventilation openings 233b is disposed at a portion of the protection plate 233 within a height range corresponding to the installation region 22a, so as to further improve heat exchange efficiency between the inductor box 30 and the atmosphere.

In some embodiments, referring to fig. 5, the inverter 1 further includes a support bracket 50 for connecting the inverter 1 to a wall, a space region between two fins of the second fin set 232 forms a dodging region 22b, and a portion of the support bracket 50 is disposed in the space region in a penetrating manner and is connected to the substrate. In this way, the support bracket 50 does not interfere with the second fin group 232, facilitating the connection of the support bracket 50 to the wall.

Further, referring to fig. 5, the inverter 1 further includes a wall-mounted back plate 60 for connecting the inverter 1 to a wall, and the wall-mounted back plate 60 is connected to the base plate 22 within a height range of the first fin group 231 and is located directly above the support bracket 50. In this way, the wall-hanging backboard 60 and the support bracket 50 jointly act to connect the inverter 1 with the wall, so that suspension between the upper part or the lower part of the inverter 1 and the wall is avoided, and the hanging stability of the inverter 1 is improved.

It can be appreciated that the wall-hanging backboard 60 and the support bracket 50 can keep a preset distance between the inverter 1 and the wall, which is helpful for air flowing between the inverter 1 and the wall, and improves the heat dissipation performance of the heat dissipation fins 23.

Further, referring to fig. 3, the portion of the substrate 22 located in the mounting area 22a has an inductance outlet hole 22c, and the inductance outlet hole 22c communicates with the accommodating space 20a for passing through the wire harness of the inductance box 30. Thus, by disposing the wire harness of the inductance box 30 in the inductance outlet hole 22c, the wire harness disposing space within the inductance box 30 is saved.

The various embodiments/implementations provided by the application may be combined with one another without contradiction.

In the description of the present application, a description of the terms "some embodiments" or "exemplary" and the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the embodiments of the present application. In the present application, the schematic representations of the above terms are not necessarily for the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the various embodiments or examples described in the present application and the features of the various embodiments or examples may be combined by those skilled in the art without contradiction.

The above description is only of the preferred embodiments of the present application and is not intended to limit the present application, but various modifications and variations can be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (11)

1. An inverter, comprising:

The radiator is of an integrated structure and is provided with an accommodating space, and one side of the accommodating space along the first direction is provided with an opening;

the box cover is arranged at the opening and seals the opening;

the inductance box is arranged on the back side of the radiator along the first direction.

2. The inverter of claim 1, wherein the heat sink comprises a frame, a base plate, and a plurality of heat dissipating fins, the frame being disposed on a side of the base plate facing the cover and extending around an edge of the base plate, the frame and the base plate enclosing the accommodating space, the heat dissipating fins being connected to a back side of the base plate.

3. The inverter according to claim 2, wherein the inverter includes side covers provided on opposite sides of the radiator in the second direction, the side covers extending in the height direction and covering at least a junction of the case cover and the radiator, wherein the first direction, the second direction, and the height direction are perpendicular to each other.

4. The inverter according to claim 3, wherein the side cover does not exceed a side of the base plate facing the heat radiating fin in a planar projection perpendicular to the second direction.

5. The inverter according to claim 2, wherein the inductor box is provided with the heat dissipation fins on both an upper side and a lower side thereof extending in a second direction of the substrate, the heat dissipation fins extending in a height direction, wherein the first direction, the second direction, and the height direction are perpendicular to each other.

6. The inverter according to claim 2, wherein a thickness of an end of the heat radiating fin near the base plate is greater than a thickness of an end far from the base plate.

7. The inverter of claim 2, wherein the plurality of heat dissipating fins comprises a first fin group and a second fin group, the first fin group being located on a top side of the second fin group with a space therebetween to define a mounting area, the inductor box being mounted within the mounting area.

8. The inverter of claim 7, wherein the heat sink further comprises two protective plates disposed on opposite sides of the back side of the substrate, the first fin group, the second fin group, and the inductor box being located between the two protective plates.

9. The inverter according to claim 8, wherein the protection plate is provided with a clasp position at a position within a height range corresponding to the first fin group.

10. The inverter according to claim 8, wherein the protection plate is provided with at least one vent at a position within a height range corresponding to a mounting region of the inductor box.

11. The inverter of claim 8, further comprising a support bracket for connecting the inverter to a wall, wherein a space region between two of the fins of the second fin group forms a relief region, and wherein a portion of the support bracket is disposed through the space region and is connected to the base plate.