WO2017202157A1

WO2017202157A1 - Cabinet bus power supply connection sealing structure

Info

Publication number: WO2017202157A1
Application number: PCT/CN2017/080868
Authority: WO
Inventors: 张羽; 王京; 赵志刚; 蒋世用; 刘克勤
Original assignee: 珠海格力电器股份有限公司
Priority date: 2016-05-25
Filing date: 2017-04-18
Publication date: 2017-11-30
Also published as: CN105958426A

Abstract

The present invention relates to a cabinet bus power supply connection sealing structure, comprising a cabinet bus extending out of a cabinet side panel; an external power supply cable connected to the cabinet bus; and further comprising a protective box body arranged at the outer side of the cabinet side panel, a connector of the cabinet bus and the external power supply cable being sealed in the protective box body. Since the connector of the cabinet bus and the external power supply cable is sealed in the protective box body, foreign materials and rainwater can be effectively prevented from entering the position of the connector of the cabinet bus and the external power supply cable, thus effectively improving the safety protection levels at the position of the connection of the cabinet bus and the external power supply cable and further improving the work reliability of an equipment.

Description

Cabinet busbar power supply connection sealing structure

This application claims the priority of the Chinese Patent Application filed on May 25, 2016, the Chinese Patent Office, the application number is 201610356700.3, and the invention is entitled "a cabinet busbar power supply connection sealing structure", the entire contents of which are incorporated herein by reference. In the application.

Technical field

The invention relates to the technical field of air conditioners, in particular to a cabinet busbar power supply connection sealing structure of an air conditioner.

Background technique

In the large commercial air conditioner, the cabinets such as the starter cabinet and the converter cabinet used in the air conditioner chiller are connected to the external power supply line, and the busbars in the cabinet are generally extended to the side panels of the cabinet, and the external power supply cables are provided. After connecting with the busbar of the cabinet machine, the power supply to the interior of the cabinet is realized.

However, at present, the busbar of the cabinet and the connector of the power supply cable are located outside the cabinet, and the joint position is not sealed, which results in a safety level of the joint position is not ideal, or simply install a cover above the joint. This also does not effectively prevent rainwater from entering the joint position from the bottom and sides.

Therefore, how to effectively seal the joint position of the cabinet bus bar and the power supply cable to improve the safety protection level of the joint position is a technical problem that needs to be solved by those skilled in the art.

Summary of the invention

The object of the present invention is to provide a cabinet busbar power supply connection sealing structure, so as to be able to effectively seal the joint position of the cabinet busbar and the power supply cable, thereby improving the safety protection level of the joint position of the two joints.

In order to achieve the above object, the cabinet busbar power supply connection sealing structure disclosed by the present invention comprises a cabinet bus bar extending from a side panel of the cabinet body and an external power supply cable connected to the cabinet busbar, and further comprising a cabinet disposed at the cabinet a protective box body outside the body side panel, and the joint of the cabinet bus bar and the external power supply cable is sealed in the protective box body.

Preferably, the protective box body is provided with a through hole through which the external power supply cable passes, the through hole is embedded with a sealing fit with the through hole, and is fastened to the external power supply cable Flexible line on ring.

Preferably, the flexible over-coil is a rubber ring.

Preferably, the cabinet bus bar is a copper row, and the first bakelite and the second bakelite are further disposed on the inner side of the cabinet side panel, and the first bakelite and the second bakelite are combined to form a The copper row seals the matching clamping groove.

Preferably, the one end of the outer power supply cable penetrating into the protective box body is also crimped with a connecting piece, and the connecting piece is provided with a first connecting hole; the cabinet bus bar protrudes from the side plate of the cabinet body A second connecting hole is opened at one end thereof, and the connecting piece is connected to the cabinet bus bar through bolts of the first connecting hole and the second connecting hole.

Preferably, the first bakelite and the second bakelite are connected to the cabinet side panel by bolts.

Preferably, a gasket is disposed between the first bakelite and the side panel of the cabinet, and between the second bakelite and the side panel of the cabinet.

Preferably, the cabinet busbar is a cable, and the cabinet side panel is provided with a busbar through hole for the cable to pass through, and the busbar through hole is embedded with the busbar through hole, and A flexible overwound that is clamped to the cabinet bus.

Preferably, the protective box body is provided with a flange at one end that is in contact with the side panel of the cabinet body, and the protective box body and the fixing box are passed through the flange and the fixing screws of the side panel of the cabinet body The side panels of the cabinet are connected.

Preferably, a gasket is disposed between the flange and the side panel of the cabinet.

It can be seen from the above technical solution that in the cabinet busbar power supply connection sealing structure disclosed in the present invention, a protective box body is disposed on the outer side of the solid side panel, and the joint of the cabinet bus bar and the external power supply cable is sealed in the protection box. in vivo.

Since the joints of the cabinet bus bar and the external power supply cable are sealed in the protective box body, the debris and rainwater can be effectively prevented from entering the joint position of the two, thereby effectively improving the safety protection level of the joint position of the two joints, thereby improving the safety level. The reliability of the equipment work.

DRAWINGS

1 is a schematic exploded view of a cabinet busbar power supply connection sealing structure disclosed in an embodiment of the present invention;

2 is a schematic view showing the assembly of the power supply connection sealing structure of the cabinet bus bar disclosed in the embodiment of the present invention; Figure

FIG. 3 is a schematic view showing the assembling of the cabinet busbar power supply connection sealing structure disclosed in another embodiment of the present invention.

Among them, 1 is the side panel of the cabinet, 2 is the busbar of the cabinet, 3 is the external power supply cable, 4 is the protective box body, 5 is the flexible over coil, 6 is the first bakelite, 7 is the second bakelite, 8 is Connecting piece, 9 is bolt.

detailed description

The core of the invention is to provide a cabinet busbar power supply connection sealing structure, so as to be able to effectively seal the joint position of the cabinet busbar and the power supply cable, thereby improving the safety protection level of the joint position of the two joints.

The present invention will be further described in detail below in conjunction with the drawings and embodiments.

In the cabinet busbar power supply connection sealing structure disclosed in this embodiment, the cabinet busbar 2 extending from the cabinet side panel 1 and the external power supply cable 3 connected to the cabinet busbar 2 are as shown in FIG. 1 to FIG. As shown in the above, in the solution disclosed in the embodiment, the protective box body 4 is also disposed outside the cabinet side panel 1, and the joints of the cabinet bus bar 2 and the external power supply cable 3 are sealed in protection. Inside the box 4.

Since the joints of the cabinet bus bar 2 and the external power supply cable 3 are sealed in the protective box body 4, it is possible to effectively prevent the debris and rainwater from entering the joint position of the two, thereby effectively improving the safety protection of the joint positions of the two. Levels improve the reliability of equipment work.

As shown in FIG. 1, the protective case 4 is provided with a through hole through which the external power supply cable 3 passes, and a flexible over-coil 5 is embedded in the through hole, and the flexible over-coil 5 can be tightly fitted on the one hand. On the other hand, on the external power supply cable 3, on the other hand, it is possible to seal with the through hole on the protective casing 4 by its own deformation. It will be readily understood by those skilled in the art that the selection of the flexible over-coil 5 is not limited to one type, such as a rubber over-coil, a silicone over-coil, or the like.

The busbar 2 of the cabinet may be a copper row. Usually, the copper row is made of high-purity copper, and the shape of the copper row is processed by machining. The shape of the copper row is usually rectangular, and the busbar 2 is a copper row. Next, the first bakelite 6 and the second bakelite 7 are further disposed on the inner side of the cabinet side panel 1, and the first bakelite 6 and the second bakelite 7 are fastened to form a clamping slot that is sealingly engaged with the copper row. As shown in FIG. 1, the cabinet bus bar 2 is two copper bars, and the first bakelite 6 and the second bakelite 7 are provided with slots, when the first bakelite 6 After being fastened with the second bakelite 7, the notch is just fitted with the copper bar, thereby completing the clamping and fixing of the copper bar. The groove machined on the bakelite should ideally conform to the cross section of the copper row in order to achieve the desired sealing effect.

It should be noted that, in the present invention, the outer side of the cabinet side panel 1 refers to the side of the cabinet side panel 1 located outside the cabinet body, and the inner side of the cabinet side panel 1 refers to the side of the cabinet side panel 1 located inside the cabinet body. .

So far, the cabinet busbar power supply connection sealing structure actually forms a double-stage sealing structure, which is respectively a protective box seal outside the cabinet side panel 1 and a bakelite seal inside the cabinet side panel 1, compared to the prior art only In the case of a single-stage sealing structure with a bakelite seal, the protection performance of the two-stage sealing structure is greatly improved.

Preferably, the first bakelite 6 and the second bakelite 7 are connected to the cabinet side panel 1 by bolts 9, as shown in FIGS. 1 to 3, of course, the first bakelite 6 and the second bakelite 7 may also be It is connected to the side panel 1 of the cabinet by means of card loading or the like, which is not specifically limited herein. Further, in order to improve the sealing property of the connection position of the bakelite and the cabinet side panel 1, the first bakelite 6 and the cabinet side panel 1 and the second bakelite 7 and the cabinet side panel 1 may be A gasket is provided between each.

It is not difficult to understand that when the cabinet bus bar 2 is a copper bar, the external power supply cable 3 can be directly screwed or welded to the copper bar. In this embodiment, a bolt is used between the external power supply cable 3 and the copper bar. Specifically, the one end of the external power supply cable 3 penetrating into the protection box body 4 is crimped with a connecting piece 8 . As shown in FIG. 1 , the connecting piece 8 is a round head piece, and the connecting piece 8 is opened. a first connecting hole; a second connecting hole is formed on one end of the cabinet bus bar 2 extending from the side panel 1 of the cabinet, and the connecting piece 8 and the cabinet bus bar 2 are connected through the bolts of the first connecting hole and the second connecting hole Connection, this kind of connection is reliable and easy to disassemble.

Of course, the cabinet busbar 2 may also be a cable. When the cabinet busbar 2 is a cable, the cabinet side panel 1 is provided with a busbar through hole for the cable to pass through, and a flexible over coil 5 is embedded in the busbar through hole. On the one hand, the flexible over-coil 5 can be fastened over the cable as the cabinet busbar 2, and on the other hand it can also be sealed with the busbar-through opening by its own deformation. This also enables the cabinet busbar power supply connection sealing structure to achieve a two-stage seal. The sealing principle of the outer seal structure is consistent with the sealing principle of the inner seal structure, and is sealed by the flexible over coil 5.

It is easy to connect that the protective box body 4 and the cabinet side panel 1 can be a detachable connection or a permanent fixed connection. In the embodiment, the protective box body 4 is used to connect with the cabinet side panel 1 One end is provided with a flange, and the protective box 4 is connected to the cabinet side panel 1 through a flange and a fixing screw of the cabinet side panel 1 The arrangement allows the protective case 4 to be replaced. When working on different sites, the protective case 4 matching the external power supply cable 3 can be replaced according to the diameter of the cable.

Further, in order to improve the sealing property of the connection position of the protective casing 4 and the cabinet side panel 1, in the present embodiment, a gasket is also provided between the flange of the protective casing 4 and the cabinet side panel 1.

The cabinet bus power supply connection sealing structure provided by the present invention is described in detail above. The principles and embodiments of the present invention have been described herein with reference to specific examples, and the description of the above embodiments is only to assist in understanding the method of the present invention and its core idea. It should be noted that those skilled in the art can make various modifications and changes to the present invention without departing from the spirit and scope of the invention.

Claims

A cabinet busbar power supply connection sealing structure comprises a cabinet busbar (2) extending from a side panel (1) of the cabinet and an external power supply cable (3) connected to the cabinet busbar (2), characterized in that And further comprising a protective box body (4) disposed outside the side panel (1) of the cabinet, and the joint of the cabinet bus bar (2) and the external power supply cable (3) is sealed in the protective box Within body (4).
The cabinet busbar power supply connection sealing structure according to claim 1, wherein the protective box body (4) is provided with a through hole through which the external power supply cable (3) passes, the through hole A flexible over-coil (5) that is sealingly engaged with the through-hole and clamped to the external power supply cable (3) is embedded.
The cabinet busbar power supply connection sealing structure according to claim 2, characterized in that the flexible over-coil (5) is a rubber ring.
The cabinet busbar power supply connection sealing structure according to claim 2, wherein the cabinet bus bar (2) is a copper row, and the first bakelite is further disposed on the inner side of the cabinet side plate (1) (6) And the second bakelite (7), the first bakelite (6) and the second bakelite (7) are fastened to form a clamping groove that is sealingly engaged with the copper baffle.
The cabinet busbar power supply connection sealing structure according to claim 4, wherein the external power supply cable (3) penetrates into one end of the protection box body (4) and is also crimped with a connecting piece (8). a first connecting hole is formed in the connecting piece (8); a second connecting hole is formed in an end of the cabinet bus bar (2) extending from the side panel (1) of the cabinet, The bolts of the first connecting hole and the second connecting hole connect the connecting piece (8) with the cabinet bus bar (2).
The cabinet busbar power supply connection sealing structure according to claim 4, wherein the first bakelite (6) and the second bakelite (7) are both passed through a bolt and the cabinet side panel (1) )connection.
The cabinet busbar power supply connection sealing structure according to claim 6, wherein the first bakelite (6) and the cabinet side panel (1), and the second bakelite (7) A gasket is disposed between the cabinet side panels (1).
The cabinet busbar power supply connection sealing structure according to claim 2, wherein the cabinet busbar (2) is a cable, and the cabinet side panel (1) is provided with a busbar for the cable to pass through. a through hole, the busbar through hole is embedded with a sealing fit with the busbar through hole, and is fastened to the cabinet body Flexible over-coil on the wire (5).
The cabinet busbar power supply connection sealing structure according to any one of claims 1-8, characterized in that the protective box body (4) is provided at one end of the cabinet side panel (1) Flanging, connecting the protective casing (4) to the cabinet side panel (1) through the flange and the fixing screws of the cabinet side panel (1).
The cabinet busbar power supply connection sealing structure according to claim 9, further comprising a gasket disposed between the flange and the cabinet side panel (1).