CN220830385U - Inverter with a power supply - Google Patents

Abstract

The utility model discloses an inverter, which comprises a lower shell, a waterproof adhesive tape and an upper cover, wherein the lower shell is provided with an upper opening, the lower shell comprises a plurality of side walls, and the side walls are enclosed to form the upper opening; the waterproof adhesive tape is annular, and the bottom of the waterproof adhesive tape is sleeved at the tops of the side walls; the upper cover is detachably sleeved outside the lower shell so as to clamp the waterproof adhesive tape between the upper cover and the side wall; the waterproof adhesive tape is sleeved on the top of the side wall, is tightly pressed by the upper cover, and has two waterproof structures between the upper cover and the lower shell, wherein the first waterproof structure is arranged between the upper cover and the top of the side wall, and the second waterproof structure is arranged between the side edge of the side wall and the upper cover, so that the sealing effect between the upper cover and the lower shell is improved, liquid is prevented from entering the inverter, and electronic elements in the inverter are prevented from being damaged.

Description

Inverter with a power supply

Technical Field

The utility model relates to the field of electrical equipment, in particular to an inverter.

Background

The inverter is a converter for converting DC power into AC power with fixed frequency, fixed voltage or frequency and voltage, and is composed of an inverter bridge, a control logic and a filter circuit, and is widely applicable to air conditioners, home theatres, electric grinding wheels, electric tools, sewing machines, DVDs, VCDs, computers, televisions, washing machines, smoke exhaust fans, refrigerators, video recorders, massagers, fans or illumination and the like.

Some existing inverters need to be placed outdoors for operation, and when the inverter is used in an outdoor rainy day or a relatively humid environment, if the waterproof structure of the housing of the inverter is poor, liquid may enter the inverter, which easily causes damage to electronic components in the inverter.

Disclosure of utility model

The present utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes an inverter.

An inverter according to an embodiment of the first aspect of the present utility model includes a lower case having an upper opening, a waterproof strip, and an upper cover, the lower case including a plurality of side walls, the plurality of side walls enclosing to form the upper opening; the waterproof adhesive tape is annular, and the bottoms of the waterproof adhesive tapes are sleeved at the tops of the side walls; the upper cover is detachably sleeved outside the lower shell so as to clamp the waterproof adhesive tape between the upper cover and the side wall.

The inverter according to the embodiment of the utility model has at least the following technical effects: waterproof adhesive tape overlaps in the top of lateral wall, and waterproof adhesive tape compresses tightly through the upper cover to have twice waterproof construction between upper cover and the lower casing, first waterproof construction is between the top of upper cover and lateral wall, and second waterproof construction is between the side of lateral wall and the upper cover, and then improves the sealed effect between upper cover and the lower casing, avoids liquid to get into in the dc-to-ac converter, avoids the electronic component damage of the dc-to-ac converter the inside.

According to some embodiments of the utility model, the upper cover comprises a transverse plate and a plurality of side plates arranged at the edges of the transverse plate, the transverse plate is used for pressing the top pressed by the waterproof adhesive tape to the top of the side wall, and the side plates are used for pressing the side edges of the waterproof adhesive tape to the side edges of the side wall.

According to some embodiments of the utility model, the flashing has a first cavity with a lower opening, and the top of the side wall is located in the first cavity.

According to some embodiments of the utility model, the two sides of the first cavity are provided with a plurality of first extending parts which are arranged at intervals along the up-down direction, and the first extending parts are arranged obliquely upwards.

According to some embodiments of the utility model, two sides of the top of the waterproof adhesive tape are provided with second extending parts which are obliquely arranged.

According to some embodiments of the utility model, the waterproof strip is further provided with a second cavity, which is located outside the first cavity and surrounds the first cavity.

According to some embodiments of the utility model, the waterproof strip is further provided with a third cavity, which is located above the first cavity.

According to some embodiments of the utility model, a heat dissipation element is arranged at the bottom of the lower shell, a control board, a power board and an IO board are arranged in the lower shell, the control board and the power board are installed at the bottom of the lower shell, and the IO board is located above the control board and the power board.

According to some embodiments of the utility model, the bottom of the lower housing has a plurality of communication holes, a sealing ring is arranged between the lower housing and the heat dissipation element, and the plurality of communication holes are positioned in the sealing ring.

According to some embodiments of the utility model, the lower housing is provided with a waterproof and breathable valve.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

Additional aspects and advantages of the present utility model will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:

fig. 1 is a schematic structural diagram of an inverter according to an embodiment of the present utility model;

fig. 2 is an exploded view of an inverter according to an embodiment of the present utility model;

FIG. 3 is a schematic view of the structure of the lower housing according to the embodiment of the utility model;

FIG. 4 is a cross-sectional view of an embodiment of the present utility model in which neither the upper cover nor the waterproof strip is mounted to the lower housing;

FIG. 5 is an enlarged view of FIG. 4 at A;

FIG. 6 is a schematic view of the structure of an upper cover according to an embodiment of the present utility model;

fig. 7 is a schematic side view of an inverter according to an embodiment of the present utility model;

fig. 8 is a schematic diagram of a bottom structure of an inverter according to an embodiment of the utility model.

Reference numerals: the lower case 100, the upper opening 110, the sidewall 120, the first vertical section 121, the horizontal section 122, the second vertical section 123, the communication hole 130, the waterproof ventilation valve 140, the waterproof adhesive tape 200, the first cavity 210, the first extension 211, the second extension 220, the second cavity 230, the third cavity 240, the upper cover 300, the cylinder 301, the screw 302, the cross plate 310, the side plate 320, the heat sink 400, the control plate 500, the power plate 600, the IO plate 700, and the mounting bracket 800.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements 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 utility model.

In the description of the present utility model, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

Referring to fig. 1 and 2, the inverter according to the embodiment of the present utility model includes a lower case 100, a waterproof tape 200, and an upper cover 300, and as shown in fig. 3, the lower case 100 has an upper opening 110, the lower case 100 includes a plurality of sidewalls 120, and the plurality of sidewalls 120 enclose the upper opening 110; as shown in fig. 2, the waterproof adhesive tape 200 is annular, and as shown in fig. 4 and 5, the bottom of the waterproof adhesive tape 200 is sleeved on the top of the plurality of side walls 120; the upper cover 300 is detachably sleeved outside the lower case 100 to clamp the waterproof adhesive tape 200 between the upper cover 300 and the sidewall 120.

In some embodiments, as shown in fig. 3, the lower case 100 is composed of a plurality of side walls 120 and a bottom surface, and in particular, the shape of the lower case 100 is rectangular, the lower case 100 is composed of four side walls 120 and a bottom surface, and the four side walls 120 enclose an upper opening 110; the shape of the waterproof adhesive tape 200 is matched with the shape formed by enclosing the plurality of side walls 120, for example, as shown in fig. 2, the shape of the plurality of side walls 120 is rectangular, the shape of the waterproof adhesive tape 200 is also rectangular, the shape of the plurality of side walls 120 is circular, the shape of the waterproof adhesive tape 200 is also circular, and then the bottom of the waterproof adhesive tape 200 can be directly sleeved on the top of the plurality of side walls 120, namely, the waterproof adhesive tape 200 is clamped on the top of the side walls 120; the upper cover 300 is detachably mounted on the lower housing 100, so as to facilitate assembly of the upper cover 300 and maintenance of electronic components inside the inverter, and the upper cover 300 and the lower housing 100 may be fastened, screwed or combined with screwed.

In some embodiments, as shown in fig. 3, the side wall 120 includes a first vertical section 121, a horizontal straight section 122 and a second vertical section 123, one end of the horizontal straight section 122 is connected with the top of the first vertical section 121, the other end of the horizontal straight section 122 is connected with the bottom of the second vertical section 123, as shown in fig. 5, the bottom of the waterproof adhesive tape 200 is sleeved on the top of the second vertical section 123, the upper cover 300 is sleeved outside the second vertical section 123, the waterproof adhesive tape 200 is clamped between the upper cover 300 and the second vertical section 123, specifically, as shown in fig. 6, the bottom of the upper cover 300 has a cylinder 301, the cylinder 301 is located in the waterproof adhesive tape 200, the cylinder 301 has an internal thread, as shown in fig. 3 and 7, a screw 302 can penetrate through the horizontal straight section 122 to be connected with the cylinder 301 in a threaded manner, thereby fixing the upper cover 300 on the lower housing 100, so that the upper cover 300 and the lower housing 100 are tightly matched, and the screw 302 and the horizontal straight section 122 can be provided with a sealing adhesive tape to realize sealing connection.

The waterproof adhesive tape 200 is sleeved on the top of the side wall 120, the waterproof adhesive tape 200 is tightly pressed through the upper cover 300, two waterproof structures are arranged between the upper cover 300 and the lower shell 100, the first waterproof structure is arranged between the upper cover 300 and the top of the side wall 120, the second waterproof structure is arranged between the side edge of the side wall 120 and the upper cover 300, and therefore the sealing effect between the upper cover 300 and the lower shell 100 is improved, liquid is prevented from entering the inverter, and damage to electronic elements in the inverter is avoided.

In some embodiments of the present utility model, as shown in fig. 5 and 6, the upper cover 300 includes a cross plate 310 and a plurality of side plates 320 provided at edges of the cross plate 310, the cross plate 310 is used to press the top of the waterproof glue tape 200 against the top of the side wall 120, the side plates 320 are used to press the side edges of the waterproof glue tape 200 against the side edges of the side wall 120, when the upper cover 300 is mounted on the lower case 100, the top of the waterproof glue tape 200 is clamped between the cross plate 310 and the top of the side wall 120 to achieve a left-right direction seal, and a portion of the side edges of the waterproof glue tape 200 is clamped between the side plates 320 and the side wall 120 to achieve an up-down direction seal, and double-layer seals to improve the sealing effect.

In some embodiments of the present utility model, as shown in fig. 5, the waterproof adhesive tape 200 has a first cavity 210 with a lower opening, the top of the side wall 120 is located in the first cavity 210, and when the upper cover 300 is installed, the first cavity 210 is sleeved outside the top of the side wall 120, specifically, the shape of the first cavity 210 matches the shape of the side wall 120, that is, the cross section of the first cavity 210 is rectangular.

In a further embodiment of the present utility model, as shown in fig. 5, the left and right sides of the inside of the first cavity 210 have a plurality of first extending portions 211 disposed at intervals along the up-down direction, the first extending portions 211 are disposed obliquely upward, when the upper cover 300 is installed, the waterproof adhesive tape 200 is installed on the side wall 120, the side wall 120 can rotate the first extending portions 211 upward, and then the upper cover 300 is installed on the lower housing 100, so that the first extending portions 211 are clamped on the inner wall of the cavity and the side edges of the side wall 120, the first extending portions 211 have a sealing effect, and water is prevented from entering the inverter from the gap between the cavity and the side wall 120, and the left and right sides of the inside of the first cavity 210 have the first extending portions 211, so as to improve the sealing effect.

In a further embodiment of the present utility model, as shown in fig. 5, the two sides of the top of the waterproof adhesive tape 200 are provided with the second extending portions 220 which are obliquely arranged, specifically, the top of the waterproof adhesive tape 200 is arc-shaped, the two ends of the arc surface are provided with the second extending portions 220, the two second continuing portions are respectively inclined leftwards and rightwards, when the upper cover 300 is mounted on the lower housing 100, the upper cover 300 can enable the two second extending portions 220 to respectively rotate leftwards and rightwards, and the bottom of the upper cover 300, namely, the middle positions of the two extending portions and the top of the waterproof adhesive tape 200, of the second extending portions 220 are tightly attached due to elasticity have sealing effects, so that the waterproof performance of the inverter is improved.

In a further embodiment of the present utility model, as shown in fig. 5, the waterproof adhesive tape 200 is further provided with a second cavity 230, the second cavity 230 is located outside the first cavity 210 and surrounds the first cavity 210, and the second cavity 230 is provided, so that the compression amount of the waterproof adhesive tape 200 is large, the sealing effect between the side edge of the side wall 120 and the upper cover 300 is improved, specifically, the cross section of the second cavity 230 is in a shape of a "door", and the second cavity in a shape of a "door" is located outside the first cavity 210.

In a further embodiment of the present utility model, as shown in fig. 5, the waterproof adhesive tape 200 is further provided with a third cavity 240, and the third cavity 240 is located above the first cavity 210, so that the compression amount of the waterproof adhesive tape 200 is large, and the sealing effect between the top of the side wall 120 and the upper cover 300 is improved; the cross-section of the third cavity 240 may be circular, triangular, rectangular, polygonal, or other shapes, and specifically, the cross-section of the third cavity 240 is shaped.

In some embodiments of the present utility model, as shown in fig. 1, 2 and 8, a heat sink 400 is disposed at the bottom of the lower case 100, a control board 500, a power board 600 and an IO board 700 are disposed in the lower case 100, the control board 500 and the power board 600 are mounted at the bottom of the inside of the lower case 100, and the IO board 700 is located above the control board 500 and the power board 600. The power board 600 and the control board 500 are mounted at the bottom of the inside of the lower case 100 such that the power board 600 and the control board 500 are close to the heat sink 400, so that the power board 600 and the control board 500 can obtain a better heat dissipation effect, and the IO board 700 is located at the top of the inside of the lower case 100 such that the IO board 700 is convenient for connecting lines, and in particular, the heat sink 400 includes a bottom plate and heat dissipation fins mounted on the bottom plate.

In some embodiments of the present utility model, as shown in fig. 3, the bottom of the lower housing 100 has a plurality of communication holes 130, a sealing ring (not shown) is provided between the lower housing 100 and the heat sink 400, the plurality of communication holes 130 are located in the sealing ring, specifically, the positions of the communication holes 130 correspond to the positions of the power board 600 and the control board 500, so that the power board 600 and the control board 500 can better dissipate heat through the heat sink 400, it is conceivable that an inductor can be installed in the lower housing 100, a part of the heat sink 400 can extend into the lower housing 100 through the communication holes 130, and then be used for fixing the inductor, and the inductor can dissipate heat through the heat sink 400; the sealing ring is ring-shaped, and the plurality of communication holes 130 are all located in the sealing ring, and the heat sink 400 can be fixed to the bottom of the lower housing 100 by screws.

In some embodiments of the present utility model, as shown in fig. 7, the lower case 100 is provided with a waterproof and ventilation valve 140, which prevents water from entering the inverter, and also allows air in the inverter to be discharged through the waterproof and ventilation valve 140, thereby allowing the air of the inverter to communicate with the outside air.

In some embodiments of the present utility model, as shown in fig. 8, the heat sink 400 or the lower housing 100 is mounted with a bracket 800, the bracket 800 is mounted on a wall, the heat sink 400 or the lower housing 100 is mounted on the bracket 800, specifically, the bracket 800 is detachably mounted on the heat sink 400, it is conceivable that the bracket 800 and the heat sink 400 may be in a snap connection, and further the bracket 800 may be directly fixed on the wall, and then the heat sink 400 is snapped on the bracket 800, so that the inverter is mounted on the wall conveniently and the disassembly is convenient.

In the description of the present specification, reference to the term "some embodiments" or "what may be considered to be" etc. 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 utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. An inverter, comprising:

a lower housing having an upper opening, the lower housing including a plurality of side walls, the plurality of side walls enclosing to form the upper opening;

The bottom of the waterproof adhesive tape is sleeved at the tops of the side walls;

the upper cover is detachably sleeved outside the lower shell so as to clamp the waterproof adhesive tape between the upper cover and the side wall.

2. The inverter according to claim 1, wherein: the upper cover comprises a transverse plate and a plurality of side plates arranged at the edge of the transverse plate, the transverse plate is used for tightly pressing the top of the waterproof adhesive tape on the top of the side wall, and the side plates are used for tightly pressing the side edges of the waterproof adhesive tape on the side edges of the side wall.

3. The inverter according to claim 1, wherein: the waterproof adhesive tape is provided with a first cavity with a lower opening, and the top of the side wall is positioned in the first cavity.

4. An inverter according to claim 3, characterized in that: the two side surfaces inside the first cavity are provided with a plurality of first extending parts which are arranged at intervals along the up-down direction, and the first extending parts are arranged obliquely upwards.

5. The inverter according to claim 3 or 4, characterized in that: the two sides at the top of the waterproof adhesive tape are provided with second extending parts which are obliquely arranged.

6. An inverter according to claim 3, characterized in that: the waterproof adhesive tape is also provided with a second cavity, and the second cavity is positioned outside the first cavity and surrounds the first cavity.

7. An inverter according to claim 3, characterized in that: the waterproof adhesive tape is also provided with a third cavity, and the third cavity is positioned above the first cavity.

8. The inverter according to claim 1, wherein: the bottom of lower casing is equipped with the radiating piece, be equipped with control panel, power board and IO board in the lower casing, the control panel with the power board install in the inside bottom of lower casing, the IO board is located the control panel with the top of power board.

9. The inverter of claim 8, wherein: the bottom of the lower shell is provided with a plurality of communication holes, a sealing ring is arranged between the lower shell and the radiating piece, and the plurality of communication holes are positioned in the sealing ring.

10. The inverter according to claim 1, wherein: the lower shell is provided with a waterproof ventilation valve.