CN213782793U - Inverter protection junction box and mounting structure thereof - Google Patents
Inverter protection junction box and mounting structure thereof Download PDFInfo
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- CN213782793U CN213782793U CN202021556214.4U CN202021556214U CN213782793U CN 213782793 U CN213782793 U CN 213782793U CN 202021556214 U CN202021556214 U CN 202021556214U CN 213782793 U CN213782793 U CN 213782793U
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Abstract
The utility model discloses an inverter protection terminal box, the opening part lid of box body has closed the lid, is provided with first through-hole on the box body, wears to be equipped with termination in the first through-hole, and the inner wall of box body links to each other with the termination is fixed, and at least one position between at least one part of termination and the first through-hole inner wall and between the mouth edge department of termination and first through-hole is provided with the seal. The structure utilizes the sealing ring arranged between the box cover and the box body after the box cover is covered on the opening of the box body so as to achieve the protection performance of the junction box, further prevents water vapor and dust from entering the box body between the opening edges of the box cover and the opening of the box body, and in addition, the sealing ring is also arranged between the first through hole and the second through hole of the box body so as to achieve the sealing between the first through hole and the second through hole, thereby further preventing the water vapor and the dust from entering the inside of the junction box through the junction box and the inverter shell and the first through hole.
Description
Technical Field
The utility model belongs to the technical field of a terminal box technique for photovoltaic inverter is last, especially an inverter protection terminal box and mounting structure thereof.
Background
The traditional photovoltaic inverter junction box is not provided with a sealing structure for a through hole for installing a penetrating wiring terminal, and because the through hole on the junction box is communicated with the through hole of the photovoltaic inverter shell, when a user opens the junction box to perform wiring or maintenance operation, water vapor, dust and the like easily enter the photovoltaic inverter shell through the through hole on the junction box and the through hole of the photovoltaic inverter shell, particularly, the phenomenon of short circuit and the like of wiring is easily caused by the entering of the water vapor, and the photovoltaic inverter circuit and the load are damaged.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the not enough of above-mentioned technique and designing one kind prevent an inverter protection terminal box and mounting structure that entering such as steam, dust.
The utility model discloses an inverter protection terminal box, including the box body, the opening part lid of box body has closed the lid, is provided with first through-hole on the box body, wears to be equipped with termination in the first through-hole, and the inner wall of box body links to each other with the termination is fixed, and at least one position between at least partly of termination and the first through-hole inner wall and between the mouth edge department of termination and first through-hole is provided with the seal.
Preferably, a sealing ring is arranged between the box cover and the sealing surface of the opening of the box body, and the box cover is fixed at the opening of the box body through a fastening piece.
Preferably, the fastener comprises a hinge structure and a bolt fixing structure, the hinge structure comprises a first hinge body arranged on one side of the box cover and a second hinge body arranged on one side of the box body, and the first hinge body and the second hinge body are in position correspondence and are hinged through a pin shaft; bolt fastening structure includes bolt, fixed orifices and fixed plate, and remaining at least one side sets up the fixed orifices on the lid, and remaining at least one side sets up the fixed plate on the box body, and the fixed orifices corresponds with the position of fixed plate each other, is provided with the screw hole that corresponds with the fixed orifices position on the fixed plate, and the inside wall of fixed orifices is provided with the stationary ring body, and the bolt carries out threaded connection with the screw hole after running through the hole of stationary ring body in proper order.
Preferably, the fastener includes bolt fastening structure, bolt fastening structure includes the bolt, locate the fixed orifices of double-phase correspondence side department on the lid and locate the fixed plate on the double-phase correspondence side on the box body, the fixed orifices corresponds each other with the position of fixed plate, and be provided with the screw hole that corresponds with the fixed orifices position on the fixed plate, the inside wall of fixed orifices is provided with the fixed ring body, the bolt runs through in proper order behind the hole of fixed ring body and carries out threaded connection with the screw hole.
Preferably, the end of the first hinge body is provided with a hook, the second hinge body comprises a hinge frame with a hinge rod, the hinge frame is arranged on the box body, and the hook is hooked on the hinge rod of the hinge frame, or
The tip of the articulated body of second sets up the body of colluding, and first articulated body is including the articulated frame that has the hinge bar, and the articulated frame is located on the lid, and colludes the body and collude on the hinge bar of articulated frame.
Preferably, the edge of the inner side surface of the box cover is provided with a ring groove, a sealing ring is embedded in the ring groove, and the height of the sealing ring is higher than the groove depth of the ring groove.
Preferably, the width of the sealing surface is greater than that of the sealing ring, wherein an outer sealing convex ring, a middle sealing convex ring and an inner sealing convex ring are arranged on one end surface of the sealing ring, which is in contact with the sealing surface, the outer sealing convex ring, the middle sealing convex ring and the inner sealing convex ring protrude out of the notch of the annular groove and then are tightly attached to the sealing surface under the condition that the box cover is fixed with the box body, the height of the middle sealing convex ring is higher than that of the outer sealing convex ring and that of the inner sealing convex ring, and the heights of the outer sealing convex ring and the inner sealing convex ring are equal.
The utility model provides a mounting structure of dc-to-ac converter protection terminal box, includes the dc-to-ac converter casing and as above the dc-to-ac converter protection terminal box, the lateral surface of dc-to-ac converter casing and the laminating of box body lateral surface of dc-to-ac converter protection terminal box back between them through fastener interconnect, be provided with the second through-hole that corresponds each other with first through-hole position on the dc-to-ac converter casing respectively, be provided with the sealing washer on the second through-hole, and the outer mouthful of edge contact laminating of sealing washer and first through-hole.
Preferably, a positioning ring body is arranged on the second through hole, and a sealing ring is placed on the positioning ring body.
Preferably, the width of the positioning ring body is greater than or equal to the width of the sealing ring.
Preferably, the area of the outer side surface of the inverter case where the case is mounted is smaller than the areas of the front side surface, the rear side surface, the bottom side surface and the top side surface of the inverter case. So that the area of the side surface that the box body follows is reduced, further reducing the volume of the inverter housing structure with the junction box.
Preferably, the sealing ring comprises a large sealing ring and a small sealing ring, the large sealing ring and the small sealing ring are connected with each other through a connector, and the large sealing ring and the small sealing ring are respectively abutted against the lower opening edge of the positioning ring body and the lower opening edge of the first through hole.
The utility model relates to an inverter protection junction box and mounting structure thereof, the structure thereof utilizes the lid to cover and set up the sealing ring between the opening part of the box body to reach the protective performance of junction box, in order to further stop steam, dust etc. to enter into the box body between the mouth edges of the lid and the box body opening, in addition, also set up the sealing ring between the first through hole and the second through hole of the box body, in order to reach the position between the first through hole and the second through hole to seal, thereby further prevent steam, dust etc. from entering into the junction box through the first through hole and between junction box and inverter shell; meanwhile, after the wiring device is fixed, the first through hole in the box body is sealed, so that when the box cover is opened and the box body is maintained and wired, the IP protection (protection of water vapor, dust and the like) of the inverter shell is not affected by the operation of the wiring box, and the maintenance and wiring operation are convenient.
Drawings
FIG. 1 is the whole structure diagram of embodiment 1;
FIG. 2 is the whole structure diagram of embodiment 1 (II);
FIG. 3 is the whole structure diagram (III) of embodiment 1;
FIG. 4 is the whole structure diagram of example 1 (IV);
fig. 5 is an overall configuration diagram (v) of embodiment 1.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art all belong to the protection scope of the present invention.
Example 1:
as shown in fig. 1 to 5, the inverter protection junction box described in this embodiment includes a box body 1, a box cover 2 covers an opening of the box body 1, a sealing ring 4 is disposed between the box cover 2 and a sealing surface 101 at the opening of the box body 1, and the box cover 2 is fixed at an opening 10 of the box body 1 through a fastening member; the box body 1 is provided with a first through hole 11, the wiring device 7 is arranged in the first through hole 11 in a penetrating way, the inner wall of the box body 1 is fixedly connected with the wiring device 7, at least one position between at least one part of the wiring device 7 and the inner wall of the first through hole 11 and between at least one part of the wiring device 7 and the edge of the first through hole 11 is provided with a sealing body 8, the sealing body 8 adopts a rubber sealing gasket, the rubber sealing gasket can be arranged between the outer side surface of the part arranged in the first through hole in the wiring device in a penetrating way and the inner wall of the first through hole only (the sealing gasket is sleeved on the part arranged in the first through hole in the wiring device) independently, or
Or after a rubber sealing gasket is arranged between the outer side surface of the part penetrating into the first through hole in the wiring device and the inner wall of the first through hole, a rubber sealing gasket is arranged between the bottom side surface of the wiring device and the inner wall of the box body (the rubber sealing gasket is positioned at the opening edge of the first through hole 11), a rubber sealing gasket is arranged between the rubber sealing gasket sleeved on the part penetrating into the first through hole in the wiring device and the bottom side surface of the wiring device and the inner wall of the box body, the rubber sealing gasket and the wiring device can be independent structures, and the rubber sealing gasket are integrated, and can be replaced by rubber sealing gaskets, or rubber sealing gaskets sleeved on the part penetrating into the first through hole in the wiring device can be replaced by independent structures, or rubber sealing gaskets are arranged between the rubber sealing gaskets and the bottom side surface of the wiring device and the inner wall of the box body
It is also possible to provide a separate rubber sealing gasket between the bottom side of the wiring device and the inner wall of the box (this rubber sealing gasket is located at the rim of the first through hole 11).
Wherein, the inner wall of the box body 1 is fixed with a plurality of screws (fixed by welding), the screws penetrate through a flange 72 on the welding device 7, a positioning ring body 73 is arranged at the position of a hole penetrated through the flange 72, a nut is screwed in the screw to fix the wiring device on the inner wall of the box body, the nut is arranged in the positioning ring body for positioning, a wiring terminal 71 on the wiring device is used for connecting wires and is electrically connected with a circuit system in the inverter shell, so that a first through hole on the box body is sealed after the wiring device is fixed, the IP protection (water vapor, dust and the like) of the inverter shell is not influenced by the operation of the wiring box when the box body is maintained and the wiring operation is carried out after the box cover is opened, the inverter shell obtains the IP protection (water vapor, dust and the like) and the wiring box is arranged at the side surface of the part with smaller area, the volume of the junction box is reduced; meanwhile, a positioning ring groove is formed in the side face of the wiring device, a sealing gasket is embedded in the positioning ring groove, and the height of the sealing gasket is higher than the groove depth of the positioning ring groove, so that the sealing gasket can be in contact with the inner wall of the box body to seal between the wiring device and the inner wall of the box body.
Further, the adopted fastener comprises a hinge structure and a bolt fixing structure, the hinge structure comprises a first hinge body 22 arranged on one side of the box cover 2 and a second hinge body 12 arranged on one side of the box body 1, and the first hinge body 22 corresponds to the second hinge body 12 in position and is hinged with the second hinge body through a pin shaft; bolt fastening structure includes the bolt, fixed orifices 23 and fixed plate 5, and remaining at least one side sets up the fixed orifices on the lid, and remaining at least one side sets up the fixed plate on box body 1, and the fixed orifices corresponds with the position of fixed plate each other, is provided with the screw hole that corresponds with the fixed orifices position on the fixed plate, and the inside wall of fixed orifices is provided with the stationary ring body, and the bolt carries out threaded connection with the screw hole after running through the hole of stationary ring body in proper order. Wherein, the second articulated body 22 and the fixed plate are located the corresponding both sides of opening part respectively, first articulated body 12 and the corresponding both sides that the fixed orifices is located on the lid respectively, and such structure setting further reaches and realizes after the lid of terminal box is opened that the lid still connects on the box body, take place the phenomenon of losing after carrying out the lid dismantlement, and be provided with the engaging lug on the fixed plate, the inner chamber lateral wall welded fastening of box body has the screw rod, the screw rod runs through behind the hole on the engaging lug and suppresses the fixed engaging lug through nut and screw rod threaded connection, in order to reach the fixed plate and fix with the box body and link to each other.
In this embodiment, the bottom end of the first hinge body 22 is provided with the hook body 221, the second hinge body 12 includes the hinge frame 120 with the hinge rod 121, the hinge frame 120 is disposed on the box body 1, and the hook body 221 is hooked on the hinge rod 121 of the hinge frame 120, wherein the width of the opening of the hook body is smaller than the diameter of the hinge rod, so that the hook body can be stably sleeved on the hinge rod to realize hinging, and the phenomenon that the hook body is separated from the hinge rod after the box cover is opened is prevented, and the box cover 2, the first hinge body 22 and the hook body are combined with each other to form a plastic box cover or a metal box cover of an integrated structure, and the hook body has certain elasticity.
In addition, another hook body and hinge bracket setting mode is: the end of the second hinge body 12 is provided with a hook 221, the first hinge body 22 includes a hinge frame 120 with a hinge rod 121, the hinge frame is disposed on the box cover 2, and the hook is hooked on the hinge rod of the hinge frame.
In this embodiment, the edge of the inner side surface of the box cover 2 is provided with a ring groove 21, a sealing ring 4 is embedded in the ring groove 21, and the height of the sealing ring 4 is higher than the depth of the ring groove 21. The sealing ring is fixed in position by the aid of the structure, the inner wall of the annular groove is tightly attached to the outer wall of the sealing ring, sealing performance of the end face of the sealing ring after being contacted with a sealing face is further improved, and the end face of the sealing ring part exposed out of the annular groove is tightly attached to the sealing face and abutted against the sealing face.
In this embodiment, the width of the sealing surface 101 is greater than that of the sealing ring 4, wherein an end surface of the sealing ring 4 contacting the sealing surface 101 is provided with an outer sealing convex ring 41, a middle sealing convex ring 42 and an inner sealing convex ring 43, the outer sealing convex ring, the middle sealing convex ring and the inner sealing convex ring are all protruded out of the groove opening of the annular groove and then tightly attached to the sealing surface under the condition that the box cover is fixed to the box body, the height of the middle sealing convex ring is higher than that of the outer sealing convex ring and that of the inner sealing convex ring, and the heights of the outer sealing convex ring and the inner sealing convex ring are equal. Which enables triple sealing to improve the sealing performance between the sealing ring and the sealing face.
Example 2:
the structure of the inverter protection junction box described in this embodiment is substantially the same as that of embodiment 1, but is different from embodiment 1 in that the fastener includes a bolt fixing structure, the bolt fixing structure includes a bolt, fixing holes 23 disposed at two corresponding sides on the box cover 2 and fixing plates 5 disposed on two corresponding sides on the box body 1, the positions of the fixing holes 23 and the fixing plates 5 correspond to each other, and a threaded hole 51 corresponding to the position of the fixing hole 23 is disposed on the fixing plate 5, a fixing ring body 24 is disposed on the inner side wall of the fixing hole 23, and the bolt sequentially penetrates through the inner hole of the fixing ring body 24 and then is in threaded connection with the threaded hole 51.
Example 3:
an installation structure of an inverter protection junction box comprises an inverter shell and the inverter protection junction box as described in embodiment 1 or embodiment 2, wherein the outer side surface of the inverter shell 3 is fixedly connected with the outer side surface of a box body 1 of the inverter protection junction box through bolts after being attached, the box body 1 and the inverter shell 3 of the inverter protection junction box are respectively provided with a first through hole 11 and a second through hole 31 which correspond to each other in position, a sealing ring 6 is arranged on the second through hole 31, the sealing ring 6 is attached to the lower edge of the first through hole 31, the structure of the installation structure utilizes the sealing rings arranged between the first through hole and the second through hole to seal so as to prevent water vapor, dust and the like from entering the box body from the first through hole between the junction box and the inverter shell and on the protection junction box, and further realizes that the inverter protection junction box with the second through hole can achieve protection performance after being installed on the inverter shell, meanwhile, the inverter protection junction box is arranged at the side of the inverter shell, and the length and the width of the inverter protection junction box are smaller than those of the side surface of the inverter shell.
In this embodiment, be provided with the locating ring body 311 on the second through-hole 31, place sealing washer 6 on the locating ring body 311, its structure realizes that the sealing washer advances line location, and the width more than or equal to sealing washer 6's of locating ring body 311 width for sealing washer 6 is firm to be placed, and the sealing washer terminal surface carries out the complete contact with the side of locating ring body simultaneously, promotes the sealing performance between sealing end and the locating ring body side.
In this embodiment, the sealing ring 6 includes a large sealing ring 61 and a small sealing ring 62, and the large sealing ring and the small sealing ring are connected with each other through a connector, and the large sealing ring and the small sealing ring are respectively abutted against the positioning ring body and the lower opening edge of the first through hole; the sealing ring is arranged to realize double sealing so as to achieve sealing and lifting.
The present invention is not limited to the above-mentioned preferred embodiments, and any other products in various forms can be obtained by the teaching of the present invention, but any changes in the shape or structure thereof, which have the same or similar technical solutions as the present invention, fall within the protection scope of the present invention.
Claims (10)
1. The utility model provides an inverter protection terminal box, includes box body (1), the opening part lid of box body (1) has closed lid (2), a serial communication port, be provided with first through-hole (11) on box body (1), wear to be equipped with termination (7) in first through-hole (11), the inner wall and the termination (7) of box body (1) are fixed continuous, and at least one position between termination (7) at least partly and first through-hole (11) inner wall and termination (7) at least partly and first through-hole (11) mouth edge department is provided with seal (8).
2. The inverter protection junction box of claim 1, wherein a sealing ring (4) is arranged between the box cover (2) and the sealing surface (101) at the opening of the box body (1), and the box cover (2) is fixed at the opening (10) of the box body (1) through a fastener.
3. The inverter protection junction box of claim 2, wherein the fastener comprises a hinge structure and a bolt fixing structure, the hinge structure comprises a first hinge body (22) arranged on one side of the box cover (2) and a second hinge body (12) arranged on one side of the box body (1), and the first hinge body (22) and the second hinge body (12) are correspondingly positioned and are hinged with each other through a pin shaft; bolt fixed knot constructs including the bolt, fixed orifices (23) and fixed plate (5), remaining at least one side sets up fixed orifices (23) on lid (2), remaining at least one side sets up fixed plate (5) on box body (1), and fixed orifices (23) and the position of fixed plate (5) correspond each other, be provided with screw hole (51) that correspond with fixed orifices (23) position on fixed plate (5), the inside wall of fixed orifices is provided with fixed ring body (24), the bolt runs through in proper order and carries out threaded connection with screw hole (51) behind the hole of fixed ring body (24).
4. The junction box for protecting an inverter according to claim 2, wherein the first hinge body (22) has a hook (221) at an end thereof, the second hinge body (12) comprises a hinge bracket (120) having a hinge rod (121), the hinge bracket is disposed on the box body (1), and the hook is hooked on the hinge rod of the hinge bracket, or
The end part of the second hinged body (12) is provided with a hook body (221), the first hinged body (22) comprises a hinged frame (120) with a hinged rod (121), the hinged frame is arranged on the box cover (2), and the hook body is hooked on the hinged rod of the hinged frame.
5. The junction box for protecting the inverter according to claim 1, wherein a ring groove (21) is formed at the edge of the inner side surface of the box cover (2), a sealing ring (4) is embedded in the ring groove (21), and the height of the sealing ring (4) is higher than the depth of the ring groove (21).
6. The inverter protection junction box according to any one of claims 1 to 5, wherein the width of the sealing surface (101) is greater than the width of the sealing ring (4), wherein an end surface of the sealing ring (4) contacting the sealing surface is provided with an outer sealing convex ring (41), a middle sealing convex ring (42) and an inner sealing convex ring (43), the outer sealing convex ring, the middle sealing convex ring and the inner sealing convex ring are protruded out of the groove opening of the ring groove and then tightly attached to the sealing surface under the condition that the box cover is fixed with the box body, the height of the middle sealing convex ring is greater than the height of the outer sealing convex ring and the height of the inner sealing convex ring, and the heights of the outer sealing convex ring and the inner sealing convex ring are equal.
7. An installation structure of an inverter protection junction box is characterized by comprising an inverter shell and the inverter protection junction box as claimed in any one of claims 1 to 6, wherein the outer side surface of the inverter shell (3) is connected with the outer side surface of a box body (1) of the inverter protection junction box through a fastener after being attached, second through holes (31) corresponding to the first through holes (11) are respectively arranged on the inverter shell (3), sealing rings are arranged on the second through holes, and the sealing rings are attached to the outer edges of the first through holes in a contact mode.
8. The mounting structure of an inverter protection junction box according to claim 7, wherein a positioning ring body (311) is disposed on the second through hole (31), and a sealing ring (6) is disposed on the positioning ring body (311).
9. The mounting structure of an inverter protective junction box according to claim 7, wherein the area of the outer side of the inverter case (3) where the box body is mounted is smaller than the areas of the front side, the rear side, the bottom side and the top side of the inverter case (3).
10. The mounting structure of an inverter protective junction box according to any one of claims 8 to 9, wherein the sealing ring (6) comprises a large sealing ring (61) and a small sealing ring (62), and the large sealing ring and the small sealing ring are connected to each other by a connecting body, and the large sealing ring and the small sealing ring respectively abut against the positioning ring body and the lower opening edge of the first through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021556214.4U CN213782793U (en) | 2020-07-30 | 2020-07-30 | Inverter protection junction box and mounting structure thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021556214.4U CN213782793U (en) | 2020-07-30 | 2020-07-30 | Inverter protection junction box and mounting structure thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213782793U true CN213782793U (en) | 2021-07-23 |
Family
ID=76866965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021556214.4U Active CN213782793U (en) | 2020-07-30 | 2020-07-30 | Inverter protection junction box and mounting structure thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213782793U (en) |
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2020
- 2020-07-30 CN CN202021556214.4U patent/CN213782793U/en active Active
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