CN219678994U - Wire passing plate, shell, inverter and power supply system - Google Patents

Abstract

The utility model relates to the technical field of electronic equipment, in particular to a wire passing board, a shell, an inverter and a power supply system, wherein the wire passing board comprises a board body used as a main body, the board body is provided with a cutting groove, the cutting groove comprises at least two annular grooves which are coaxially arranged, the cross sections of any annular grooves are different in area, and the cutting groove is used for a cutting tool to cut the board body so as to form wire passing holes with cross section areas of different sizes; the cross section of the annular groove and the cross section of the wire through hole are cross sections along the direction perpendicular to the axis of the annular groove. Through the mode, the wire passing plate provided by the embodiment of the utility model can be used for wires with different sizes to pass through, and can meet more practical use conditions.

Description

Wire passing plate, shell, inverter and power supply system

Technical Field

The embodiment of the utility model relates to the technical field of electronic equipment, in particular to a wire passing board, a shell, an inverter and a power supply system.

Background

The current photovoltaic inverter comprises a shell, a wire passing plate and an inverter component, wherein the shell is provided with an accommodating cavity and an opening communicated with the accommodating cavity, a plate body of the wire passing plate is made of rigid materials, a wire passing hole is formed in the plate body through drilling, the wire passing plate cover is arranged at the opening, and the inverter component is arranged in the accommodating cavity. When the electric power supply device is used, the inverter assembly is connected with the cable, and the cable passes through the cable hole and then is connected with the electric equipment.

Because the current wire passing board is made of rigid materials, the wire passing holes can only be used for allowing cables with the same wire diameter to pass through, and the use requirements of the cables with different wire diameters cannot be met.

Disclosure of Invention

In view of the above, embodiments of the present utility model provide a line passing board, a housing, an inverter, and a power supply system, which overcome or at least partially solve the above-described problems.

In order to solve the technical problems, the utility model adopts a technical scheme that: the wire passing plate comprises a plate body serving as a main body, wherein the plate body is provided with a cutting groove, the cutting groove comprises at least two annular grooves which are coaxially arranged, the cross sections of any annular grooves are different in area, and the cutting groove is used for a cutting tool to cut the plate body so as to form wire passing holes with cross section areas of different sizes; the cross section of the annular groove and the cross section of the wire through hole are cross sections along the direction perpendicular to the axis of the annular groove.

Optionally, the plate body is made of an elastic material.

Optionally, the plate body is further provided with the strengthening rib, the one end of strengthening rib with the first lateral wall of annular groove is connected, the other end of strengthening rib with the second lateral wall of annular groove is connected, the first lateral wall of annular groove with the second lateral wall of annular groove sets up relatively.

Optionally, the number of the reinforcing ribs is multiple, and multiple reinforcing ribs are equally spaced and encircling the annular groove.

Optionally, the thickness of the plate body is greater than or equal to 5mm.

In order to solve the technical problems, the utility model adopts another technical scheme that: the shell comprises a main body and the wire passing plate, wherein the main body is provided with a containing cavity, a first opening is formed in the first surface of the main body, and the first opening is communicated with the containing cavity; the wire passing plate cover is arranged on the first opening so as to seal the first opening.

Optionally, a first waterproof protrusion is further arranged on the surface of the plate body facing the first opening; the casing still includes the apron, the apron is provided with the second opening, the apron lid in cross the line board dorsad the one side of main part, first waterproof protruding butt in the first surface of main part, just waterproof protruding encircle first opening, the apron orientation the surface butt of main part in the plate body, the apron will the plate body press-fastening is fixed in the main part, the second opening will the plate body is provided with the part of cutting groove exposes.

Optionally, the cover plate is provided with a first bolt hole, the plate body is provided with a second bolt hole, along the direction from the surface of the plate body facing the first opening to the surface of the plate body facing away from the first opening, the second bolt hole penetrates through the plate body, the first surface of the main body is provided with a threaded hole, the shell further comprises a mounting bolt, the surface of the plate body facing the first opening is provided with a second waterproof bulge, the surface of the plate body facing away from the first opening is provided with a third waterproof bulge, and the second waterproof bulge and the third waterproof bulge respectively encircle the openings of the surfaces of the two sides of the plate body, where the second bolt hole is located; when the plate body cover is arranged on the first opening, the cover plate is abutted to the plate body, the first bolt hole, the second bolt hole and the threaded hole are aligned, the mounting bolt sequentially passes through the first bolt hole and the second bolt hole and then is screwed into the threaded hole, the second waterproof bulge is abutted to the first surface of the main body, and the third waterproof bulge is abutted to the surface of the cover plate facing the plate body.

In order to solve the technical problems, the utility model adopts another technical scheme that: providing an inverter comprising the housing; the inverter assembly is disposed in the receiving cavity.

In order to solve the technical problems, the utility model adopts another technical scheme that: the utility model provides a power supply system, including consumer, cable and above-mentioned dc-to-ac converter, the one end of cable with the dc-to-ac converter subassembly is connected, the other end of cable pass behind the wire passing hole with consumer connection, the inner wall of wire passing hole with the surface interference fit of cable.

The embodiment of the utility model has the beneficial effects that: the wire passing plate provided by the embodiment of the utility model comprises a plate body used as a main body, wherein the plate body is provided with cutting grooves, each cutting groove comprises at least two annular grooves which are coaxially arranged, the cross sections of any annular grooves are different in area, and the cutting grooves are used for cutting the plate body by a cutting tool so as to form wire passing holes with cross section areas of different sizes; the cross section of the annular groove and the cross section of the wire through hole are cross sections along the direction perpendicular to the axis of the annular groove. The plate body is provided with the cutting groove for cutting by the cutting tool, and the plate body can form the wire passing holes with different cross-sectional areas after being cut, so that cables with different sizes can pass through, and more practical use conditions can be met.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments of the present utility model will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present utility model, and other drawings may be obtained according to the drawings without inventive effort for a person skilled in the art.

Fig. 1 is a perspective view of a wire passing board according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of the wire passing board shown in FIG. 1 after being cut into an annular groove by a cutting tool to form a wire passing hole;

FIG. 3 is a schematic diagram of the cable through which the cable passes and is cut according to the cable size, wherein the cable through board shown in FIG. 1 is disposed on the housing of the inverter;

fig. 4 is another schematic diagram of the cable passing board shown in fig. 1 disposed on a housing of the inverter, and a cable passing through the cable passing board is cut according to a cable size to form a cable passing hole;

fig. 5 is a front view of the wire passing plate shown in fig. 1;

FIG. 5a is a cross-sectional view of the wire passing plate A-A shown in FIG. 5;

FIG. 6 is an exploded view of a housing provided in accordance with an embodiment of the present utility model;

FIG. 6a is an enlarged view of a portion of FIG. 6A;

fig. 6B is a partial enlarged view at B in fig. 6.

Detailed Description

In order that the utility model may be readily understood, a more particular description thereof will be rendered by reference to specific embodiments that are illustrated in the appended drawings. It will be understood that when an element is referred to as being "fixed" to another element, it can be directly on the other element or one or more intervening elements may be present therebetween. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or one or more intervening elements may be present therebetween. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used in this specification includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 5, the wire passing board 100 includes a board body 1 as a main body 101, the board body 1 is provided with a cutting groove 11, and a part of the board body 1 can be cut by cutting a part of the groove bottom of the cutting groove 11 by using a cutting tool, so as to form a wire passing hole 12 for passing a cable c. In order to adapt to cables c with different wire diameters, the cutting groove 11 comprises at least two annular grooves 111 which are coaxially arranged, the areas of the cross sections between any annular grooves 111 are different, each annular groove 111 is arranged in a layer-by-layer encircling mode, according to the different sizes of the annular grooves 111 which are cut, wire passing holes 12 with different sizes and cross sectional areas can be formed on the plate body 1 to match the cables c with different wire diameters, wherein the cross sections of the annular grooves 111 and the cross sections of the wire passing holes 12 are all cross sections along the direction perpendicular to the axis of the annular grooves 111.

Further, in the present embodiment, the plate body 1 is made of an elastic material. The plate body 1 made of elastic material can conveniently cut the annular groove 111 by using a cutting tool, and can prevent the wall of the wire passing hole 12 from cutting the outer skin of the wire c when the wire c passes through the wire passing hole 12. On the other hand, since the inner wall 121 of the via hole 12 has elasticity, the cable c having a larger cross-sectional area than that of the via hole 12 can be allowed to pass through, and the outer surface of the cable c presses the inner wall 121 of the via hole 12, so that the inner wall 121 of the via hole 12 is deformed, and thus the cable c having a larger size can be accommodated, based on which the sealing effect can be achieved by setting the cross-sectional area of the annular groove 111 to be equal to or smaller than that of the cable c matched therewith, and the cross-sectional shape of the annular groove 111 is the same as that of the cable c, and at this time, when the cable c passes through the via hole 12, the hole wall of the via hole 12 is abutted against the outer surface of the cable c.

Specifically, in the present embodiment, referring to fig. 2, 5 and 5a, the board body 1 has a first surface 1a and a second surface 1b opposite to each other, the wire passing hole 12 formed by the cutting device after cutting the annular groove 111 penetrates the board body 1 along the first surface 1a of the board body 1 toward the second surface 1b of the board body 1, and the cutting tool may be a paper cutter or a blade. The plate body 1 is made of a silicone rubber material, and the plate body 1 may be made of an elastic material such as natural rubber, synthetic rubber, polytetrafluoroethylene (Poly tetra fluoroethylene, abbreviated as PTFE), or the like. The number of the cutting grooves 11 is plural, and the plurality of cutting grooves 11 can be set to be the same in size and shape, and also can be set to be different in size, so as to meet more practical use demands. The annular groove 111 includes a first portion 111a located on the first surface 1a of the plate body 1 and a second portion 111b located on the second surface 1b of the plate body 1, where the first portion 111a and the second portion 111b are disposed in a mirror symmetry, and it is understood that in other embodiments, the first portion 111a and the second portion 111b are not limited to be disposed in a mirror symmetry, and two grooves disposed in opposite directions with the same shape but different depths may be disposed between the first portion 111a and the second portion 111 b; the annular recess 111 may also comprise only the first portion 111a or the second portion 111b. In this embodiment, compared with the case where the first portion 111a or the second portion 111b is separately provided, the annular groove 111 can be cut along the direction toward the first surface 1a or along the direction toward the second surface 1b, so that the problem of reverse installation of the wire passing board 100 can be avoided without considering the orientation of the wire passing board during installation. In order to match the shape of the cross section of the cable c commonly used in the market, the first portion 111a and the second portion 111b of the annular groove 111 are each provided in a circular shape; the same cutting groove 11 has a plurality of annular grooves 111, and the plurality of annular grooves 111 are coaxially disposed. It will be appreciated that, in order to make the inner wall of the wire passing hole 12 tightly contact the outer surface of the cable c to meet the sealing requirement, the aperture of the wire passing hole 12 should be smaller than the diameter of the cable c matched with the wire passing hole, and considering the sealing requirement and the convenience of threading comprehensively, the length of the inner diameter d of the annular groove 111 is generally set to be 80% -90% of the diameter d ' of the cross section of the cable c ', the size range of the diameter of the annular groove 111 is not limited to the above range, and within a reasonable range, the smaller the inner diameter d of the annular groove 111 is, the better the inner wall 121 of the wire passing hole 12 formed by the inner diameter d of the annular groove 111 tightly contacts the outer surface of the cable c ', the larger the inner diameter d of the annular groove 111 is, the threading difficulty is smaller, and the inner diameter d of the annular groove 111 can be set according to practical requirements.

In order to provide the wire passing holes 12 with a sufficient depth, and thus to provide the wire passing holes 12 with a larger inner wall area for contact with the outer surface of the cable c to form a better sealing effect, further, in some embodiments, referring to fig. 5a, the thickness T of the plate body 1 is set to be 5mm or more, i.e. the depth of the wire passing holes 12 that can be formed after cutting the plate body 1 is at least 5mm, wherein the depth of the wire passing holes 12 is the length in the direction of the first surface 1a of the plate body 1 to the second surface 1b of the plate body 1.

Referring to fig. 2 and 5, the cutting groove 11 forms a plurality of annular bonding portions 13 with different sizes on the surface of the plate body 1, the side wall of the bonding portion 13 is the side wall of the annular groove 111, after the plate body 1 is cut to form the wire passing hole 12, the side wall of the bonding portion 13 facing the center point of the bonding portion 13 is used as the inner wall 121 of the wire passing hole 12 for being in contact with the surface of the cable c, if the bonding portion 13 and the bonding portion 13 are connected only through the groove bottom structure of the annular groove 111, when the cable c passes through the wire passing hole 12, the cable c presses the inner wall 121 of the wire passing hole 12 (i.e. the side wall of the bonding portion 13 facing the center point of the bonding portion 13), the bonding portion 13 may be greatly deformed, the original annular shape cannot be maintained, and then the inner wall 121 of the wire passing hole 12 cannot be tightly bonded with the cable c.

The wire passing board 100 provided by the embodiment of the utility model comprises a board body 1 used as a main body 101, wherein the board body 1 is provided with a cutting groove 11, the cutting groove 11 comprises at least two annular grooves 111 which are coaxially arranged, the cross sections of any annular grooves 111 are different in area, and the cutting groove 11 is used for a cutting tool to cut the board body 1 so as to form wire passing holes 12 with cross section areas of different sizes; wherein the cross section of the annular groove 111 and the cross section of the via hole 12 are both cross sections in a direction perpendicular to the axis of the annular groove 111. Because the plate body 1 is provided with the cutting groove 11 for cutting by a cutting tool, the plate body 1 can form the wire passing holes 12 with different cross-sectional areas after being cut, so that cables c with different sizes can pass through, and more practical use conditions can be met.

Referring to fig. 6, the embodiment of the present utility model further provides a housing 1000, which includes a main body 101 and the wire passing board 100, and the structure and the function of the wire passing board 100 are described in the above embodiment, which is not repeated here.

The main body 101 is provided with a containing cavity 101a, the containing cavity 101a can be used for containing electrical equipment, a first surface of the main body 101 is provided with a first opening 1011, the first opening 1011 is communicated with the containing cavity 101a, the wire passing plate 100 is covered on the first opening 1011 to seal the first opening 1011, the wire passing holes 12 are formed by cutting the wire passing plate 100, the wire passing holes 12 are respectively communicated with the containing cavity 101a and the outside, and a cable c of the electrical equipment in the containing cavity 101a can pass through the wire passing holes 12 and be connected with other equipment of the outside.

In this embodiment, referring to fig. 1, 5a, 6a and 6b, a surface of the plate body 1 facing the first opening 1011 is further provided with a first waterproof protrusion 15, when the plate body 1 is covered on the first opening 1011, the first waterproof protrusion 15 abuts against the first surface 101b of the main body 101, and the first waterproof protrusion 15 surrounds the first opening 1011 to prevent liquid from entering the accommodating cavity 101a through the gap between the plate body 1 and the first surface of the main body 101 from the first opening 1011. In order to make the first waterproof protrusion 15 better fit to the first surface 101b of the main body 101, the housing 1000 further includes a cover plate 102, the cover plate 102 is provided with a second opening 1021, the cover plate 102 covers a side of the wire passing board 100 facing away from the main body 101, the cover plate 102 tightly presses and fixes the board body 1 to the main body 101, and the second opening 1021 exposes a portion of the board body 1 where the cutting groove 11 is provided. The mode of pressing the line passing board 100 by the cover plate 102 can lead the whole stress of the line passing board 100 to be more uniform, and as the board body 1 is made of elastic materials, the elastic force generated by extrusion of the first waterproof protrusions 15 of the board body 1 acts on the first surface 101b of the main body 101, so that the first waterproof protrusions 15 are tightly attached to the first surface 101b of the main body 101. Specifically, in the present embodiment, the housing 1000 further includes the mounting bolt 103, the cover plate 102 is provided with the first bolt hole α, the plate body 1 is provided with the second bolt hole β, the first surface of the main body 101 is provided with the threaded hole γ, when the plate body 1 is covered on the first opening 1011, and the cover plate 102 abuts against the plate body 1, the first bolt hole α, the second bolt hole β and the threaded hole γ are aligned, the mounting bolt 103 sequentially passes through the first bolt hole α and the second bolt hole β and then is screwed into the threaded hole γ, and thus, the cover plate 102 compresses and fixes the plate body 1 on the first surface 101b of the main body 101. Further, in order to prevent the liquid from flowing into the fit gap between the mounting bolt 103 and the first bolt hole α, the second bolt hole β and the threaded hole γ, and further flowing into the first opening 1011 through the gap between the first surface 101b of the main body 101 and the surface of the plate body 1, the plate body 1 is provided with the second waterproof protrusion 16 and the third waterproof protrusion 17, the second waterproof protrusion 16 surrounds the second bolt hole β at the aperture of the surface of the plate body 1 facing the first opening 1011, the third waterproof protrusion 17 surrounds the second bolt hole β at the aperture of the surface of the plate body 1 facing away from the first opening 1011, and when the plate body 1 is covered on the first opening 1011 and the cover plate 102 abuts against the plate body 1, the second waterproof protrusion 16 abuts against the first surface 101b of the main body 101, and the third waterproof protrusion 17 abuts against the surface of the cover plate 102 facing the plate body 1, so as to play a sealing role.

It will be appreciated that the threaded hole γ is not limited to be directly formed in the main body 101, and in other embodiments, the threaded hole γ may be formed in a nut, and a corresponding through hole is formed in the main body 101, and the mounting bolt 103 is fixed to the main body 101 through the nut after passing through the through hole. In order to prevent the liquid from flowing into the accommodating chamber 101a along the outer surface of the mounting bolt 103, the nut may be a waterproof nut, and one end of the waterproof nut provided with the threaded hole γ is riveted and fixed to the through hole of the main body 101 to seal the through hole toward the orifice at the accommodating chamber 101 a.

Further, in order to achieve better sealing and waterproof effects, in the present embodiment, referring to fig. 6, a fourth waterproof protrusion 18 is further disposed on a surface of the board body 1 facing away from the first opening 1011, when the cover 102 is fixed to the main body 101, the fourth waterproof protrusion 18 abuts against the cover 102, and the fourth waterproof protrusion 18 surrounds the second opening 1021. In some embodiments, in order to reduce the weight of the plate body 1, the first surface 1a of the plate body 1 or the second surface 1b of the plate body 1 is further provided with a plurality of weight-reducing grooves, and the plurality of weight-reducing grooves are uniformly distributed on the surface of the plate body 1.

In the present embodiment, the annular groove 111 is provided to include a first portion 111a located on the surface of the board body 1 facing the first opening 1011 and a second portion 111b located on the surface of the board body 1 facing away from the first opening 1011, between the first portion 111a and the second portion 111b, between the second waterproof projection 16 and the third waterproof projection 17, and between the first waterproof projection 15 and the fourth waterproof projection 18, respectively, are provided in mirror symmetry, so that the board body 1 does not need to be installed in use considering the facing direction.

The embodiment of the present utility model further provides an inverter, including the above-mentioned housing 1000 and an inverter assembly, where the inverter assembly is disposed in the accommodating cavity 101a of the housing 1000, and for the structure and the function of the housing 1000, please refer to the above-mentioned embodiment, and details are not repeated here.

The embodiment of the utility model also provides a power supply system which comprises electric equipment, a cable c and the inverter, wherein one end of the cable c is connected with the inverter assembly, and the other end of the cable c passes through the wire through hole 12 and then is connected with the electric equipment. The through wire hole 12 is obtained by cutting the plate body 1 according to the size of the cable c, the shape of the cross section of the through wire hole 12 is the same as that of the cross section of the cable c, the cross section of the cable c is a cross section along the length direction perpendicular to the cable c, the outer surface of the cable c can be tightly attached to the inner wall 121 of the through wire hole 12, the area of the cross section of the through wire hole 12 is smaller than that of the cross section of the cable c, the outer wall of the cable c is extruded by the inner wall 121 of the through wire hole 12, the inner wall 121 of the through wire hole 12 is in interference fit with the outer surface of the cable c, and then a gap between the outer surface of the cable c and the inner wall of the through wire hole 12 is closed, so that the sealing and waterproof functions are achieved.

It should be noted that the description of the present utility model and the accompanying drawings illustrate preferred embodiments of the present utility model, but the present utility model may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, which are not to be construed as additional limitations of the utility model, but are provided for a more thorough understanding of the present utility model. The above-described features are further combined with each other to form various embodiments not listed above, and are considered to be the scope of the present utility model described in the specification; further, modifications and variations of the present utility model may be apparent to those skilled in the art in light of the foregoing teachings, and all such modifications and variations are intended to be included within the scope of this utility model as defined in the appended claims.

Claims (10)

1. A wire passing board, comprising:

the cutting groove is used for a cutting tool to cut the plate body so as to form wire passing holes with cross section areas of different sizes;

the cross section of the annular groove and the cross section of the wire through hole are cross sections along the direction perpendicular to the axis of the annular groove.

2. The wire passing board of claim 1, wherein the board body has elastic deformation properties.

3. The wire passing board according to claim 2, wherein the board body is further provided with a reinforcing rib, one end of the reinforcing rib is connected with the first side wall of the annular groove, the other end of the reinforcing rib is connected with the second side wall of the annular groove, and the first side wall of the annular groove and the second side wall of the annular groove are oppositely arranged.

4. A wire passing board according to claim 3 wherein the number of the reinforcing ribs is plural, and the plural reinforcing ribs are arranged around the annular groove at equal intervals.

5. The wire passing board according to claim 2, wherein the thickness of the board body is 5mm or more.

6. A housing, comprising:

the main body is provided with a containing cavity, a first opening is formed in the first surface of the main body, and the first opening is communicated with the containing cavity;

the wire passing board according to any one of claims 2-5, wherein the wire passing board covers the first opening to close the first opening.

7. The housing of claim 6, wherein the housing is configured to receive the cartridge,

the surface of the plate body facing the first opening is also provided with a first waterproof bulge;

the casing still includes the apron, the apron is provided with the second opening, the apron lid in cross the line board dorsad the one side of main part, first waterproof protruding butt in the first surface of main part, just waterproof protruding encircle first opening, the apron orientation the surface butt of main part in the plate body, the apron will the plate body press-fastening is fixed in the main part, the second opening will the plate body is provided with the part of cutting groove exposes.

8. The housing of claim 7, wherein the cover plate is provided with a first bolt hole, the plate body is provided with a second bolt hole, the second bolt hole penetrates through the plate body along the direction from the surface of the plate body facing the first opening to the surface of the plate body facing away from the first opening, the first surface of the main body is provided with a threaded hole, the housing further comprises a mounting bolt, the surface of the plate body facing the first opening is provided with a second waterproof bulge, the surface of the plate body facing away from the first opening is provided with a third waterproof bulge, and the second waterproof bulge and the third waterproof bulge respectively encircle openings of the second bolt hole on two side surfaces of the plate body;

when the plate body cover is arranged on the first opening, the cover plate is abutted to the plate body, the first bolt hole, the second bolt hole and the threaded hole are aligned, the mounting bolt sequentially passes through the first bolt hole and the second bolt hole and then is screwed into the threaded hole, the second waterproof bulge is abutted to the first surface of the main body, and the third waterproof bulge is abutted to the surface of the cover plate facing the plate body.

9. An inverter, comprising

A housing according to any one of claims 6 to 8;

and the inverter assembly is arranged in the accommodating cavity.

10. A power supply system, comprising:

an electric device;

a cable;

the inverter of claim 9, wherein one end of the cable is connected to the inverter assembly, and the other end of the cable is connected to the powered device after passing through the wire through hole, and an inner wall of the wire through hole is in interference fit with an outer surface of the cable.