CN210041627U - Converter box and converter - Google Patents
Converter box and converter Download PDFInfo
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- CN210041627U CN210041627U CN201921192520.1U CN201921192520U CN210041627U CN 210041627 U CN210041627 U CN 210041627U CN 201921192520 U CN201921192520 U CN 201921192520U CN 210041627 U CN210041627 U CN 210041627U
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- upper cover
- box
- shell
- vertical part
- mounting
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Abstract
The utility model provides a frequency converter box and a frequency converter, the frequency converter box comprises an upper cover and a box shell, the upper cover is connected to the top end of the box shell to cover the top opening of the box shell, a first annular flanging is formed at the top end of the box shell, the first annular flanging surrounds the top opening, a mounting plate is fixedly arranged on the outer wall of a first vertical part of the first annular flanging, the upper cover and the mounting plate are connected by a plurality of fastening components distributed along the circumferential direction, and the fastening components are positioned outside the top opening; the sealing ring is sleeved on the first vertical portion, the top edge of the sealing ring is abutted against the upper cover, and the bottom edge of the sealing ring is abutted against the mounting plate. The utility model discloses the upper cover is connected on the mounting panel through fastening assembly, and the sealing washer leans on the upper cover and leans on the mounting panel simultaneously, guarantees to case shell top opening's sealed; simultaneously, fastening components and mounting panel all are located the outside of case shell, and are inside to be kept apart completely with the case shell to form totally enclosed waterproof construction, satisfy the waterproof requirement of converter IP level.
Description
Technical Field
The utility model relates to a converter technical field, in particular to structural improvement of converter box and have the converter of this converter box.
Background
The converter is because inside mostly is the electrical part, and its box needs certain IP protection level, especially waterproof grade requirement, and to box class converter, its box is panel beating class box mostly, and the quality is light, makes simply with low costs, obtains wide application in the electric power industry.
The frequency converter box is usually enclosed by upper cover, bottom plate and circumferential case shell, and among the prior art, the upper cover is connected with the case shell and is mostly adopted and riveted nut post or nut on the horizontal enstrophe in top of case shell, but riveting process is not waterproof, can't reach the waterproof requirement of IP grade that the converter required.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a converter box and converter improves the waterproof sealing nature of upper cover and case shell junction, satisfies the waterproof requirement of converter IP level.
In order to solve the technical problem, the utility model provides a converter box adopts following technical scheme to realize: a frequency converter box body comprises an upper cover and a box shell, wherein the upper cover is connected to the top end of the box shell to cover a top opening of the box shell, a first annular flanging is formed at the top end of the box shell and surrounds the top opening, the first annular flanging comprises a first horizontal part and a first vertical part, and the first horizontal part is connected with the box shell and the first vertical part; the outer wall of the first vertical part is fixedly provided with an installation plate, the installation plate at least surrounds the half circumference of the first vertical part, the upper cover and the installation plate are connected by a plurality of fastening components distributed along the circumferential direction, and the fastening components are positioned on the outer side of the top opening; and a sealing ring is sleeved on the first vertical part, the top edge of the sealing ring is abutted against the upper cover, and the bottom edge of the sealing ring is abutted against the mounting plate.
The fastening assembly comprises a stud and a nut, a plurality of first mounting holes are distributed on the mounting plate along the circumferential direction, a plurality of second mounting holes in one-to-one correspondence with the first mounting holes are formed in the upper cover, and the stud penetrates through the first mounting holes and the second mounting holes and is matched with the nut.
The mounting panel encircles first vertical portion a week, and be the horizontal plate, it is a plurality of fastening components are in along circumference equipartition on the mounting panel.
The nut is a press riveting nut and is riveted on the bottom surface of the mounting plate.
The edge of circumference of upper cover is formed with the second annular turn-ups of buckling downwards, the second annular turn-ups first annular turn-ups the sealing washer with the upper cover will jointly the mounting panel surrounds including.
The peripheral edge of the first horizontal part is connected with the box shell, the inner peripheral edge of the first horizontal part is connected with the first vertical part, the second annular flanging comprises a second horizontal part and a second vertical part, the second vertical part is connected with the upper cover and the second horizontal part, and the second horizontal part is attached to the first horizontal part.
The utility model also provides a frequency converter, the power distribution box comprises a box body, the box is foretell frequency converter box.
Compared with the prior art, the utility model has the advantages of it is following and positive effect:
1. the utility model discloses the upper cover is connected on the mounting panel outside the case shell top opening through fastening components, and the sealing washer leans on the upper cover and leans on the mounting panel simultaneously, namely is in the compression state, guarantees to case shell top opening's sealed; meanwhile, the fastening component is not arranged on the box shell, if water entering from the installation position of the fastening component is covered on the upper cover, the water can drop on the installation plate, the fastening component and the installation plate are both positioned on the outer side of the box shell and are completely isolated from the inside of the box shell, so that a completely sealed waterproof structure is formed, and the IP-grade waterproof requirement of the frequency converter is met.
3. The frequency converter comprising the frequency converter box body has corresponding technical effects.
Drawings
Fig. 1 is a schematic perspective view of the frequency converter box of the present invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a sectional view taken along line A-A of FIG. 2;
fig. 4 is an enlarged view of the structure of the portion B of fig. 3.
Detailed Description
The technical solution of the present invention will be described in further detail with reference to the accompanying drawings and the detailed description.
First, the terms "inside" and "outside" as used in the present embodiment are described, with the direction toward the center axis of the case being "inside" and the direction away from the center axis of the case being "outside".
Referring to fig. 1 to 4, the frequency converter casing of the present embodiment includes an upper cover 100, a casing 200 as a circumferential side plate of the casing, and certainly further includes a bottom plate, which are sequentially connected to form a generally rectangular casing. The upper cover 100 is connected to the top end of the case 200 to cover the top opening 210 of the case 200, a first annular flange 220 is formed at the top end of the case 200, the first annular flange 220 surrounds the top opening 210, the first annular flange 220 comprises a first horizontal part 221 and a first vertical part 222, and the first horizontal part 221 is connected with the case 200 and the first vertical part 222; the outer wall of the first vertical part 222 is fixedly provided with an installation plate 230, the installation plate 230 at least surrounds the circumferential half of the first vertical part 222, the upper cover 100 and the installation plate 230 are connected by a plurality of fastening assemblies 300 distributed along the circumferential direction, and the fastening assemblies 300 are positioned outside the top opening 210; the first vertical portion 222 is sleeved with a sealing ring 400, the top edge of the sealing ring 400 abuts against the upper cover 100, and the bottom edge of the sealing ring 400 abuts against the mounting plate 230, that is, the sealing ring 400 is in a squeezing state in the axial direction thereof, so as to seal a gap between the upper cover 100 and the mounting plate 230, and further seal the top opening 210, as shown in fig. 4, of course, in order to enhance the sealing effect, the sealing ring 400 should be in a stretching state in the radial direction, that is, hooped on the first vertical portion 222.
In this embodiment, the upper cover 100 is connected to the mounting plate 230 outside the top opening 210 of the cabinet through the fastening assembly 300, and the sealing ring 400 abuts against the mounting plate 230 while abutting against the upper cover 100, i.e. the sealing ring 400 is compressed after the upper cover 100 is connected to the mounting plate 230 through the fastening assembly 300, thereby ensuring the sealing of the top opening 210 of the cabinet; meanwhile, the fastening component 300 is not arranged on the case shell 200 itself, if water entering through the installation position of the fastening component 300 falls on the installation plate 230, the fastening component 300 and the installation plate 230 are both positioned on the outer side of the case shell 100 and are completely isolated from the inside of the case shell 100, so that a completely sealed waterproof structure is formed, and the waterproof requirement of the IP grade of the frequency converter is met.
Further, the fastening assembly 300 includes a stud 310 and a nut 320, a plurality of first mounting holes 231 are circumferentially arranged on the mounting plate 230, a plurality of second mounting holes 110 corresponding to the first mounting holes 231 one to one are arranged on the upper cover 100, and the stud 310 penetrates through the first mounting holes 231 and the second mounting holes 110 and is screwed in threaded fit with the nut, so as to realize fastening connection between the upper cover 100 and the mounting plate 230. Of course, the fastening assembly 300 may be other structures for realizing the connection in the mechanical field, and is not limited in particular.
In order to ensure the sealing consistency of the periphery of the top opening 210, the mounting plate 230 surrounds the first vertical part 222 for a circle, and the mounting plate 230 is a horizontal plate, as shown in fig. 4, a plurality of fastening assemblies 300 are uniformly distributed on the mounting plate 230 along the circumferential direction, so that the upper cover 100 and the mounting plate 230 are connected by the fastening assemblies uniformly arranged at multiple positions in the circumferential direction, the sealing ring 400 is uniformly applied with force, the compression degree is uniform and consistent everywhere, and the waterproof sealing performance is further effectively improved.
Since the inverter case is usually a sheet metal part, in this embodiment, the inverter case is also a sheet metal part, and in different places, the nut 320 is a press-riveting nut, which is also called a riveting nut or a self-clinching nut, and is a nut applied to a thin plate or a sheet metal, and is riveted on the bottom surface of the mounting plate 230, thereby facilitating assembly.
In order to further improve the waterproof sealing performance and prevent external water from entering the mounting plate 230 as much as possible, in this embodiment, as shown in fig. 4, a second annular flange 110 bent downward is formed at a circumferential edge of the upper cover 100, and the mounting plate 230 is surrounded by the second annular flange 120, the first annular flange 220, the sealing ring 400 and the upper cover 100.
Further, the peripheral edge of the first horizontal part 221 of the first annular flange 220 is connected with the case 200, and the inner peripheral edge is connected with the first vertical part 222, that is, the first annular flange 220 is bent towards the inside of the case 200, so that the top opening 210 forms a necking structure; accordingly, the second annular flange 120 includes a second horizontal portion 121 and a second vertical portion 122, the second vertical portion 122 connects the upper cover 100 and the second horizontal portion 121, and the second horizontal portion 121 is attached to the first horizontal portion 221, so that the first annular flange 220 and the second annular flange 120 enclose an almost closed space, enclosing the mounting plate 230, and preventing external rain water and the like from entering the mounting plate 230 from the side. Of course, the inner peripheral edge of the first horizontal portion 221 may be connected to the housing 200, and the outer peripheral edge may be connected to the first vertical portion 222, that is, the first annular flange 220 is bent toward the outside of the housing 200, so that the top opening 210 is flared, and it is only necessary to ensure that the area of the upper cover 100 is large enough to cover the top opening 210 and the mounting plate 230.
Specifically, when the frequency converter box body of the embodiment is assembled, the nut 320 is riveted on the mounting plate 230, and is fixedly arranged on the outer wall of the first vertical portion 222 of the first annular flange 220 together with the mounting plate 230 in a welding manner, the mounting plate 230 is welded on the outer wall of the first vertical portion 222 through a self-made tool, so that the welding precision and the mounting precision are ensured, the sealing strip 400 is sleeved on the first vertical portion 222, the upper cover 100 penetrates through the second mounting hole 110 and the corresponding first mounting hole 231 through the bolt 310 and is connected to the press riveting nut 320 of the mounting plate 230, the sealing ring 400 is compressed and deformed through the pressing force of the upper cover 100, and the upper cover and the box shell are completely sealed.
The sealing ring 400 is a standard component and is directly selected according to the thickness of the box shell 200, the bending length of the first vertical part 222 and the gap between the sealing ring and the upper cover 100; the mounting plate 230 is subjected to laser cutting blanking, the first mounting hole 231 for riveting the nut 320 is punched, the relative position accuracy of the nut 320 can be ensured while the size accuracy of the mounting plate 230 is ensured, and the problem that the upper cover 100 cannot be mounted due to the fact that the welding position of the mounting plate 230 or the nut 320 is not right due to too low welding accuracy is solved.
The utility model discloses still provide a converter, including the box, the box is this embodiment the converter box, its concrete structure is seen the utility model discloses the embodiment of converter box and the description of attached 1 to fig. 4, no longer repeated here.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or that equivalents may be substituted for elements thereof; such modifications and substitutions do not depart from the spirit and scope of the present invention, which is claimed.
Claims (7)
1. The utility model provides a converter box, includes upper cover and case shell, the upper cover connect in the top of case shell is in order to cover the open-top of case shell, its characterized in that: the top end of the box shell is provided with a first annular flanging, the first annular flanging surrounds the top opening, the first annular flanging comprises a first horizontal part and a first vertical part, and the first horizontal part is connected with the box shell and the first vertical part; the outer wall of the first vertical part is fixedly provided with an installation plate, the installation plate at least surrounds the half circumference of the first vertical part, the upper cover and the installation plate are connected by a plurality of fastening components distributed along the circumferential direction, and the fastening components are positioned on the outer side of the top opening; and a sealing ring is sleeved on the first vertical part, the top edge of the sealing ring is abutted against the upper cover, and the bottom edge of the sealing ring is abutted against the mounting plate.
2. The inverter case of claim 1, wherein: the fastening assembly comprises a stud and a nut, a plurality of first mounting holes are distributed on the mounting plate along the circumferential direction, a plurality of second mounting holes in one-to-one correspondence with the first mounting holes are formed in the upper cover, and the stud penetrates through the first mounting holes and the second mounting holes and is matched with the nut.
3. The inverter case of claim 2, wherein: the mounting panel encircles first vertical portion a week, and be the horizontal plate, it is a plurality of fastening components are in along circumference equipartition on the mounting panel.
4. The frequency converter cabinet of claim 2 or 3, wherein: the nut is a press riveting nut and is riveted on the bottom surface of the mounting plate.
5. The inverter case of claim 4, wherein: the edge of circumference of upper cover is formed with the second annular turn-ups of buckling downwards, the second annular turn-ups first annular turn-ups the sealing washer with the upper cover will jointly the mounting panel surrounds including.
6. The inverter case of claim 5, wherein: the peripheral edge of the first horizontal part is connected with the box shell, the inner peripheral edge of the first horizontal part is connected with the first vertical part, the second annular flanging comprises a second horizontal part and a second vertical part, the second vertical part is connected with the upper cover and the second horizontal part, and the second horizontal part is attached to the first horizontal part.
7. The utility model provides a frequency converter, includes the box, its characterized in that: the box body is the frequency converter box body of any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921192520.1U CN210041627U (en) | 2019-07-26 | 2019-07-26 | Converter box and converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921192520.1U CN210041627U (en) | 2019-07-26 | 2019-07-26 | Converter box and converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210041627U true CN210041627U (en) | 2020-02-07 |
Family
ID=69350366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921192520.1U Active CN210041627U (en) | 2019-07-26 | 2019-07-26 | Converter box and converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210041627U (en) |
-
2019
- 2019-07-26 CN CN201921192520.1U patent/CN210041627U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: No. 3138, Shiji Avenue, Huangdao District, Qingdao, Shandong Province Patentee after: Qingdao zhonggate Electric Co., Ltd Address before: 266400 Century Avenue, Huangdao District, Qingdao, Shandong Province, No. 662 Patentee before: QINGDAO CCS VFD MOTOR Co.,Ltd. |