CN209994285U - Mounting structure and dc-to-ac converter casing and apron - Google Patents

Abstract

The utility model discloses an installation structure of an inverter casing and a cover plate, comprising a casing with an opening and a cover plate for covering the opening, one side of the cover plate is inserted into the casing The other side is tightly connected with the housing through threaded fasteners. The number of threaded fasteners in the installation structure is significantly reduced, and the disassembly and installation of the cover plate are more convenient. Since no additional accessories are required, the production cost of the casing and the cover plate installation structure can also be reduced. The utility model also discloses an inverter.

Description

An installation structure of an inverter casing and a cover plate and an inverter

technical field

The utility model relates to the technical field of photovoltaic product design and production, in particular to an installation structure of an inverter casing and a cover plate and an inverter.

Background technique

In order to protect the internal structure and improve safety, the inverter is usually provided with a casing. In order to facilitate the installation of internal components, the front side or rear side of the casing is designed as an opening structure. Body opening is closed.

Taking the photovoltaic inverter as an example, there are currently two main ways to install the cover plate and the shell. One way is that the cover plate and the shell are fastened by screws; the second way is that one side of the cover plate and the shell pass through. The hinges are connected, and after the cover plate is fastened on the casing, the movable end of the cover plate is locked by the buckle.

Since only screws are used for fastening, the number of screws required in the first method is relatively large, and the disassembly of the cover plate is quite cumbersome; and the hinge connection method requires an additional hinge mechanism, so in the second method, the cover plate and the shell are installation costs are higher.

Utility model content

In view of this, one of the objectives of the present invention is to provide an installation structure of the inverter casing and the cover plate, so as to simplify the installation structure of the casing and the cover plate and reduce the production cost.

Another object of the present invention is to provide an inverter using the above-mentioned installation structure.

To achieve the above object, the utility model provides the following technical solutions:

An installation structure of an inverter casing and a cover plate, comprising a casing with an opening and a cover plate for covering the opening, one side of the cover plate is inserted and matched with the casing, and the other The side is fastened to the housing by means of threaded fasteners.

Preferably, one of the casing and the cover plate is provided with a socket, and the other is provided with a plug-in board that can be inserted into the socket, and the plug-in board is connected to the socket. The plugging of the cover plate and the casing is realized by cooperation.

Preferably, it also includes an L-shaped mounting plate, one side plate of the L-shaped mounting plate is detachably mounted on the housing, and the other side plate is provided with the socket, and the insertion plate is detachable mounted on the cover.

Preferably, the cover plate is plugged onto the housing through at least two end plugs near the corners of the cover plate.

Preferably, the threaded fastener is a screw, the cover plate is provided with a first screw hole, and the housing is provided with a second screw hole at a position corresponding to the first screw hole.

Preferably, at least one of the first screw hole and the second screw hole is an internally threaded hole.

Preferably, the cover is further provided with at least one bayonet, the housing is provided with a locking knob, and the locking knob is provided with a bayonet, the cover is covered on the housing When on the body, after rotating the locking knob and making the bayonet snap into the bayonet, the cover is in a locked state; rotating the locking knob and making the bayonet separate from the bayonet After that, the cover plate is in an unlocked state.

Preferably, it also includes an L-shaped hook, the L-shaped hook is arranged near the edge of the cover plate, and one side plate of the L-shaped hook is installed on the inner side of the cover plate, and the other side plate is provided with a U-shaped groove. , the U-shaped groove constitutes the bayonet.

Preferably, a sealing rib is further provided on the side of the casing with the opening, and a sealing groove adapted to the sealing rib is provided on the inner side of the cover plate.

In the inverter disclosed in the present invention, the installation structure between the casing and the cover plate is the installation structure of the inverter casing and the cover plate disclosed in any one of the above.

It can be seen from the above solutions that in the installation structure of the inverter housing and the cover plate disclosed in the present utility model, one side of the cover plate is inserted and matched with the housing, and the other side is connected by threaded fasteners. Compared with the current method in which the shell and the cover are only connected by screws, since only one side is connected by threaded fasteners, the number of threaded fasteners is significantly reduced, and the disassembly and installation of the cover is easier. Compared with the current method in which the casing and the cover are connected by hinges, since no additional accessories are required, the production cost of the mounting structure of the casing and the cover can be reduced.

Description of drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are just some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative effort.

1 is a schematic diagram of a housing structure provided in an embodiment of the present invention;

2 is a schematic structural diagram of an L-shaped mounting plate provided in an embodiment of the present invention;

3 is a schematic view of the installation of the L-shaped mounting plate disclosed in the embodiment of the present utility model on the housing;

4 is a schematic structural diagram of the inner side of the cover plate disclosed in the embodiment of the present invention;

5 is a schematic structural diagram of a plug-in board disclosed in an embodiment of the present utility model;

6 is a schematic diagram of the installation of a cover plate and a casing in an embodiment of the present invention;

FIG. 7 is a schematic cross-sectional view of the display plugboard and the socket during installation as disclosed in the embodiment of the present utility model;

8 is a schematic diagram of the rotation direction after the insertion of the plug-in board and the jack disclosed in the embodiment of the present utility model is completed;

9 is a schematic cross-sectional view of the cover plate disclosed in the embodiment of the present utility model after the opening of the casing is covered;

FIG. 10 is a schematic structural diagram of the disclosed embodiment of the present utility model in which one side of the cover plate is connected to the housing by threaded fasteners;

11 is a schematic structural diagram of an L-shaped hook disclosed in an embodiment of the present invention;

12 is a schematic structural diagram of the inner side of the locking knob disclosed in the embodiment of the present invention;

13 is a schematic structural diagram of the cover plate disclosed in the embodiment of the present invention when it is in an unlocked state;

FIG. 14 is a schematic structural diagram of the cover plate disclosed in the embodiment of the present invention when it is in a locked state.

in,

1 is the shell, 2 is the cover plate, 3 is the L-shaped mounting plate, 4 is the sealing rib, 5 is the insert plate, 6 is the locking knob, 7 is the L-shaped hook, 8 is the second screw hole, and 9 is the first A screw hole, 10 is a screw, 11 is a sealing groove, 31 is a jack, 32 is a mounting plate through hole, 51 is a plug-in plate through hole, 61 is a bayonet, 71 is a U-shaped groove, and 72 is a hook through hole, 73 is a positioning gap.

Detailed ways

One of the cores of the present invention is to provide an installation structure of an inverter casing and a cover plate, so as to simplify the installation structure of the casing and the cover plate and reduce the production cost.

Another core of the present invention is to provide an inverter using the above-mentioned installation structure.

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Please refer to FIG. 1 to FIG. 10 , the installation structure of the inverter casing and the cover plate disclosed in this embodiment includes a casing 1 and a cover plate 2 , wherein the casing 1 has an opening, and the function of the cover plate 2 is to Cover the opening on the casing 1, so that the casing 1 forms a closed structure as a whole and protects the electrical components inside the casing 1. In this embodiment, one side of the cover plate 2 is inserted into the casing 1. The other side of the cover plate 2 is fastened to the casing 1 by means of threaded fasteners.

Compared with the installation structure disclosed in the above-mentioned embodiments, compared with the current method in which the housing 1 and the cover plate 2 are only connected by screws, since only one side is connected by threaded fasteners, the number of threaded fasteners is significantly reduced. , both the disassembly and installation of the cover plate 2 are easier; compared with the current hinged connection between the shell 1 and the cover plate 2, since no additional accessories are required, the installation of the shell 1 and the cover plate 2 can be reduced. The production cost of the structure.

Usually, the casing of the inverter is rectangular, and the opening is generally arranged on the side with the largest area of the rectangular casing. Of course, according to the actual installation needs, the possibility of setting the opening on any side of the rectangular casing exists. In this embodiment of the present invention, when the inverter is in the installed state, the front and rear sides of the casing are the sides with the largest areas, so the opening is opened on the front or rear side of the casing.

Those skilled in the art can understand that the cover plate can be realized by disposing an insertion hole 31 on one of the casing 1 and the cover plate 2, and disposing the plug plate 5 capable of extending into the insertion hole 31 in the other one. 2 is plugged into the housing 1, and the cover plate 2 is plugged into the housing 1 through the cooperation of the plug-in board 5 and the socket 31.

The jack 31 can be opened directly on the casing 1 or the cover 2, or the jack 31 can be opened on other components connected to the casing 1 or the cover 2. In one embodiment, the casing 1 and the cover The installation structure of the plate 2 also includes an L-shaped installation plate 3, and the L-shaped installation plate 3 includes two side plates, one of which is installed on the casing 1, and the other side plate is provided with the above-mentioned socket 31, and the plug-in plate is 5 is installed on the side of the cover plate 2. As shown in FIG. 1 to FIG. 5, the plug board 5 is specifically rectangular, and the socket 31 is also designed to be a long rectangular shape for the plug board 5 to be inserted.

More specifically, the L-shaped mounting plate 3 is provided with a mounting plate through hole 32, and the bolts passing through the mounting plate through hole 32 can detachably install the L-shaped mounting plate 3 on the housing 1, and the plug-in plate 5 is provided with The plug-in board through holes 51 , and the plug-in board 5 is detachably mounted on the cover plate 2 by bolts passing through the plug-in board through-holes 51 .

Considering the stability of the installation of the cover plate 2, there are at least two end inserts on the cover plate 2. If there are only two end inserts, the two end inserts should be close to the corners of the cover plate 2. Of course, in order to further improve the installation stability of the cover plate 2, one or more middle plug boards can also be arranged between the two end plug boards, and the housing 1 is correspondingly provided with jacks adapted to the middle plug boards. 31 will do.

The threaded fastener may be a bolt or a screw 10. The threaded fastener in this embodiment is specifically a screw 10. Please refer to FIG. 1 to FIG. 10. The cover plate 2 is provided with a first screw hole 9. A second screw hole 8 is provided at a position corresponding to a screw hole 9 , and screws 10 inserted into the first screw hole 9 and the second screw hole 8 fasten the cover plate 2 and the housing 1 .

Only by setting the second screw hole 8 as an internal threaded hole and the first screw hole 9 as a through hole, the cover plate 2 and the housing 1 can be fastened together. Of course, the second screw hole 8 can also be set as a through hole. , the first screw hole 9 is a threaded hole, and both the first screw hole 9 and the second screw hole 8 can be set as internal screw holes.

Please refer to FIG. 6 to FIG. 10 , when installing the cover plate 2 on the casing 1 , first make the side of the cover plate 2 provided with the plug-in plate 5 to extend obliquely, and make the cover plate 2 follow the arrows shown in FIG. 6 . Then insert the cover plate 2 into the hole 31 in the direction shown by the arrow in FIG. Then, the cover plate 2 and the casing 1 can be fastened with screws 10 .

In order to further optimize the solution, in this embodiment, the cover plate 2 is also provided with at least one bayonet, the housing 1 is provided with a locking knob 6 , and the locking knob 6 is provided with a bayonet 61 . When installed on the housing 1, after the locking knob 6 is rotated and the bayonet 61 is snapped into the bayonet, the cover 2 is in a locked state, as shown in Figure 14, the cover 2 cannot be opened at this time, which can improve the Operation is safe to avoid injury to the operator; when the locking knob 6 is rotated and the bayonet 61 is released from the bayonet, the cover plate 2 is in an unlocked state, as shown in Figure 13, and the screw 10 can be removed at this time. Cover 2 opens.

The mounting structure of the casing and the cover plate disclosed in this embodiment further includes an L-shaped hook 7. As shown in FIG. 11 , the L-shaped hook 7 is disposed close to the edge of the cover plate 2, and the L-shaped hook 7 One of the side plates is installed on the inner side of the cover plate 2, and the other side plate is provided with a U-shaped groove 71, and the U-shaped groove 71 constitutes the above-mentioned bayonet. Please understand with reference to FIG. 11 , the L-shaped hook 7 is provided with a hook through hole 72 , and the L-shaped hook 7 is installed on the cover plate 2 by the bolt passing through the hook through hole 72 . In order to further improve the installation convenience, the L-shaped hook 7 A positioning notch 73 is also provided on the hook 7 , and the positioning gap 73 is used to cooperate with the positioning column in the cover plate 2 to quickly determine the installation position of the L-shaped hook 7 .

In order to improve the sealing performance of the casing 1, a sealing rib 4 is also provided on the side with the opening of the casing 1 (the front side of the casing in this embodiment), as shown in FIG. The inner side is provided with a sealing groove 11 into which the sealing ribs 4 are embedded, as shown in FIG. 4 .

Besides, an inverter is also disclosed in the embodiment of the present invention, and the installation structure between the casing and the cover plate of the inverter is the inverter casing disclosed in any one of the above embodiments Body and cover mounting structure.

Since the above-mentioned installation structure is adopted, the inverter has the corresponding technical advantages of the above-mentioned installation structure, which can be understood by those skilled in the art with reference to the above-mentioned embodiments, which will not be repeated herein.

The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments, and the same and similar parts between the various embodiments can be referred to each other.

The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Thus, the present invention is not intended to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. An installation structure for an inverter casing and a cover plate, comprising a casing (1) having an opening and a cover plate (2) for covering the opening, characterized in that the cover plate (2) One side of the ) is plug-fitted with the casing (1), and the other side is fastened to the casing (1) by means of threaded fasteners. 2. The installation structure according to claim 1, characterized in that, one of the casing (1) and the cover plate (2) is provided with a socket (31), and the other is provided with a socket (31) There is an insert plate (5) that can be inserted into the insertion hole (31), and the insert plate (5) cooperates with the insertion hole (31) to realize the cover plate (2) and the casing (1). ) plug-in. 3. The mounting structure according to claim 2, characterized in that it further comprises an L-shaped mounting plate, one side plate of the L-shaped mounting plate (3) is detachably mounted on the housing (1), The insertion hole (31) is provided on the other side plate, and the insertion plate (5) is detachably mounted on the cover plate (2). 4. The installation structure according to claim 3, characterized in that, the cover plate (2) is rectangular, and the cover plate (2) is inserted into the said cover plate (2) through at least two end plugs near the corners of itself. on the housing. 5. The installation structure according to claim 2, wherein the threaded fastener is a screw (10), the cover plate (2) is provided with a first screw hole (9), and the housing is provided with a first screw hole (9). (1) A second screw hole (8) is provided at a position corresponding to the first screw hole (9). 6. The installation structure according to claim 5, wherein at least one of the first screw hole (9) and the second screw hole (8) is an internal thread hole. 7. The installation structure according to any one of claims 1-6, characterized in that, the cover plate (2) is further provided with at least one bayonet, and the housing (1) is provided with a locking knob (6), and the locking knob (6) is provided with a bayonet (61), when the cover plate (2) is covered on the housing (1), the locking knob (6) is rotated. 6) After the bayonet (61) is snapped into the bayonet, the cover (2) is in a locked state; the locking knob (6) is rotated to disengage the bayonet (61) After the bayonet is installed, the cover plate (2) is in an unlocked state. 8. The installation structure according to claim 7, further comprising L-shaped hooks (7), the L-shaped hooks (7) are arranged close to the edge of the cover plate (2), and one of the L-shaped hooks (7) is disposed close to the edge of the cover plate (2). The side plate is installed on the inner side of the cover plate (2), and the other side plate is provided with a U-shaped groove (71), and the U-shaped groove (71) constitutes the bayonet. 9. The installation structure according to any one of claims 1-6 and 8, characterized in that, a sealing rib (4) is further provided on the side of the casing (1) with the opening, and the cover plate is provided with a sealing rib (4). The inner side of (2) is provided with a sealing groove (11) adapted to the sealing rib (4). 10 . An inverter, characterized in that the installation structure between the casing and the cover plate of the inverter is the combination of the inverter casing and the cover plate according to any one of claims 1 to 9 . installation structure.

Images