阅读说明：本技术 一种安全隔离型可分离式三防检修插座箱 (Safe isolated form detachable three proofings maintenance socket box ) 是由 李双凤 陆继诚 于 2019-09-30 设计创作，主要内容包括：本发明公开了一种安全隔离型可分离式三防检修插座箱,包括初级侧与次级侧,初级侧包括接触器、控制器、初级侧铁芯和初级绕组,次级侧包括次级侧铁芯、次级绕组和插座组,初级侧与次级侧为可分离式结构,初级侧防护外壳与次级侧防护外壳通过对应的滑槽和滑块结构连接,初级侧铁芯套接初级绕组,次级侧铁芯套接次级绕组,次级侧防护外壳设有插座组；检修插座箱依据变压器的电磁感应原理,采用可分离式结构,初次级两侧共用的铁芯采用非连续式,将初级、次级两侧分离,初级、次级两侧仅存在磁联系而无直接电联系,可实现次级侧的用电安全隔离,既满足在潮湿环境、污秽环境、化工腐蚀性环境等恶劣工作环境下长期使用需求,减少设备投资。(The invention discloses a safety isolation type separable three-proofing maintenance socket box which comprises a primary side and a secondary side, wherein the primary side comprises a contactor, a controller, a primary side iron core and a primary winding, the secondary side comprises a secondary side iron core, a secondary winding and a socket group, the primary side and the secondary side are of separable structures, a primary side protective shell and a secondary side protective shell are connected through corresponding sliding chutes and sliding block structures, the primary side iron core is sleeved with the primary winding, the secondary side iron core is sleeved with the secondary winding, and the secondary side protective shell is provided with the socket group; the overhaul socket box adopts a separable structure according to the electromagnetic induction principle of the transformer, the iron core shared by the two sides of the primary side and the secondary side is discontinuous, the primary side and the secondary side are separated, only magnetic contact exists between the primary side and the secondary side, direct electrical contact does not exist between the primary side and the secondary side, the electrical safety isolation of the secondary side can be realized, the long-term use requirement under severe working environments such as a humid environment, a dirty environment and a chemical corrosive environment is met, and the equipment investment is reduced.)

1. A safety isolation type separable three-proofing maintenance socket box is characterized by comprising a primary side and a secondary side, wherein the primary side comprises a primary side protective shell, a cable connector, a contactor, a controller, a primary side iron core and a primary winding are arranged in the primary side protective shell, the middle of the primary side iron core is sleeved with the primary winding, the secondary side comprises a secondary side protective shell, a secondary side iron core, a secondary winding and a socket group are arranged in the secondary side protective shell, the middle of the secondary side iron core is sleeved with the secondary winding, the primary side and the secondary side are of separable structures, one end of the primary side protective shell is connected with one end of the secondary side protective shell through a sliding chute and a sliding block structure which are correspondingly arranged, the socket group is electrically connected with two ends of the secondary winding, and a rear gland is arranged in the middle of the other end of the primary side protective shell, the rear gland is connected with the other end of the primary side protective shell through a flexible sealing assembly.

2. The safety isolation type separable three-proofing maintenance socket box according to claim 1, wherein the rear gland is provided with threaded holes in a penetrating mode, bolts are arranged in the threaded holes, and the rear gland and the flexible sealing assembly are fastened through the bolts.

3. the safety-isolation-type separable three-proofing maintenance socket box according to claim 2, wherein the flexible sealing component is a flexible rubber or silica gel sealing ring or a foaming sealing ring.

4. the safety isolation type separable three-proofing maintenance socket box according to claim 1, wherein one end of the primary winding is connected with one end of a phase pole of a contactor, the other end of the phase pole of the contactor is connected with a cable connector, the cable connector is connected with one end of an N pole of the contactor, and the other end of the N pole of the contactor is connected with the other end of the primary winding.

5. The safety-isolation-type separable three-proofing maintenance socket box according to claim 4, wherein a plurality of proximity switches are arranged in the primary-side protective shell, and the proximity switches and the control module are linked to control the opening and closing of the contactor.

6. The safety-isolation-type separable three-proofing maintenance socket box according to claim 1, wherein a socket set is arranged on the secondary-side protective shell, the outer side of the socket set is located on the wall surface of one side of the secondary-side protective shell, and the socket set is electrically connected with two ends of the secondary winding.

Technical Field

the invention relates to the field of socket boxes, in particular to a safety isolation type separable three-prevention maintenance socket box.

Background

All there is the wide application in each production, the life field that present social overhaul socket box was in, and the maintenance socket box in the existing market is mostly integrated design, generally will overhaul socket fixed mounting in incasement or case face to overhaul socket box structural configuration according to the user demand design of different environment, overhaul socket box set up the higher shell that has high protection level of cost under the adverse circumstances. To the application occasions that service environment is abominable, the power receiving point is dispersed, the installation quantity of overhaul socket box is more, like tunnel, large-scale factory, utility tunnel etc. it is higher to distribute to set up the cost of overhauing the socket box.

in fact, a fixed overhaul socket box is arranged on the site, and is generally only used for providing a temporary power supply for mobile or handheld overhaul equipment when field equipment faults need to be maintained and overhauled, so that the daily use frequency of the overhaul socket box in engineering application is low.

The socket box is usually provided with a heavy protective shell in severe environment, the shell protection grade of the socket box is even up to IP67 in the overhaul socket box in places such as tunnels, utility tunnel, chemical production and the like or humid or dusty or corrosive gas, and the overhaul socket box with high protection grade has the equipment cost which is several times higher than that of the ordinary overhaul socket box and has larger size. And because the box body or the cover plate needs to be opened for the maintenance equipment to be plugged, the protection performance of the shell of the maintenance socket box which is usually delivered from the factory and has higher protection level is reduced after the maintenance socket box is used for the first time, and the long-term use of the internal socket and the electric circuit in the severe environment is difficult to ensure.

In addition, to some not only the environment is abominable and the installation space is narrow and small places like utility tunnel, the conventional integral type that can supply to choose for use overhauls the outlet box often thickly and the size is great, and it all influences into transportation, installation and the maintenance space of corridor professional pipeline in utility tunnel or furred ceiling installation or support mounting, more urgent need an alternative solution.

Disclosure of Invention

The invention aims to provide a safe isolated type separable three-prevention maintenance socket box.

In order to achieve the purpose, the technical scheme of the invention is as follows:

A safety isolation type separable three-proofing maintenance socket box is characterized by comprising a primary side and a secondary side, wherein the primary side comprises a primary side protective shell, a cable connector, a contactor, a controller, a primary side iron core and a primary winding are arranged in the primary side protective shell, the middle of the primary side iron core is sleeved with the primary winding, the secondary side comprises a secondary side protective shell, a secondary side iron core, a secondary winding and a socket group are arranged in the secondary side protective shell, the middle of the secondary side iron core is sleeved with the secondary winding, the primary side and the secondary side are of separable structures, one end of the primary side protective shell is connected with one end of the secondary side protective shell through a sliding chute and a sliding block structure which are correspondingly arranged, the socket group is electrically connected with two ends of the secondary winding, and a rear gland is arranged in the middle of the other end of the primary side protective shell, the rear gland is connected with the other end of the primary side protective shell through a flexible sealing assembly.

Furthermore, the rear gland penetrates through a threaded hole, a bolt is arranged in the threaded hole, and the rear gland is fastened with the flexible sealing assembly through the bolt.

Further, the flexible sealing component is a flexible rubber or silica gel sealing ring or a foaming sealing ring.

furthermore, one end of the primary winding is connected with one end of a phase pole of the contactor, the other end of the phase pole of the contactor is connected with a cable connector, the cable connector is connected with one end of an N pole of the contactor, and the other end of the N pole of the contactor is connected with the other end of the primary winding.

Furthermore, a plurality of proximity switches are arranged in the primary side protective shell, and the proximity switches and the control module are linked to control the opening and closing of the contactor.

Furthermore, a socket group is arranged on the secondary side protective shell, the outer side of the socket group is located on the wall surface of one side of the secondary side protective shell, and the socket group is electrically connected with two ends of the secondary winding.

The invention has the advantages that: the overhaul socket box adopts a separable structure according to the electromagnetic induction principle of the transformer, and the iron core shared by the two sides of the primary side and the secondary side is discontinuous and is provided with two air gaps, so that the two sides of the primary side and the secondary side can be separated, only the magnetic connection and no direct electric connection exist between the two sides of the primary side and the secondary side, and the safe isolation of electricity utilization on the secondary side can be realized; the primary side is internally provided with a controller and a proximity switch for controlling the opening and closing of a contactor so as to realize the on-off control of the socket box, the separable maintenance socket box not only meets the requirements of long-term use in severe working environments such as humid environment, dirty environment, chemical corrosive environment and the like, but also can reduce equipment investment, and is suitable for temporary power supply of medium and small equipment in various application fields of industry and civilian use.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the primary side and the secondary side of the present invention when used in combination;

FIG. 2 is a schematic view of the overall structure of the present invention with the primary side separated from the secondary side;

FIG. 3 is a schematic detail view of the mating coupling of the primary and secondary containment enclosures of the present invention;

FIG. 4 is a schematic perspective view of the primary side of the present invention;

FIG. 5 is a front view of the primary side of the present invention;

FIG. 6 is a side view of the primary side of the present invention;

FIG. 7 is a perspective view of the secondary side of the present invention;

FIG. 8 is a front view of a secondary side of the present invention;

Fig. 9 is a side view of the secondary side of the present invention.

Reference numerals:

1 primary side 101 primary side protective housing 102 primary side air gap 103 primary side core groove 104 primary side core

105 primary winding 106 contactor 107 terminal block 108 controller

109 rear gland 110 flexible seal assembly 111 screw hole 112 power supply cable hole

2 secondary side 201 secondary side protective housing 202 secondary side air gap 203 projection 204 secondary side core

205 secondary winding 206 socket set.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The embodiment discloses a safety isolation type separable three-proofing maintenance socket box, which is characterized by comprising a primary side 1 and a secondary side 2, wherein the primary side 1 and the secondary side 2 are separable structures, the primary side 1 comprises a primary side protective shell 101, and the secondary side 2 comprises a secondary side protective shell 201, as shown in fig. 1 and 2.

As shown in fig. 3, there is a gap between one end of the primary side protective housing 101 and one end of the secondary side protective housing 201, the primary side air gap 102 is hollowed at one end of the primary side protective housing 101, the secondary side air gap 202 is hollowed at one end of the secondary side 2 protective housing, when ideally designed, the sizes of the primary side air gap 102 and the secondary side air gap 202 are infinite and tend to be 0, and when in specific implementation, the sizes of the primary side air gap 102 and the secondary side air gap 202 are reduced as much as possible through processes.

as shown in fig. 4 ~ 6, a pair of grooves 103 is formed in the upper and lower portions of one end of the primary side protective housing 101, a pair of protrusions 203 is formed in the upper and lower portions of one end of the secondary side protective housing 2, the grooves 103 and the protrusions 203 are correspondingly arranged, the protrusions 203 are inserted into the grooves 103 ~ fix the primary side protective housing 101 and the secondary side protective housing 201 relatively, and the inner opening of the grooves 103 is provided with a power cable hole 112 for receiving a power cable therethrough.

in the inspection socket box shown in fig. 4 ~ 6 of this embodiment, the groove 103 is disposed on the primary side housing, the protrusion 203 is disposed on the secondary side housing, which is only schematic, in practical application, the protrusion 203 may be disposed on the primary side housing, the groove 103 is disposed on the secondary side housing, and the shape of the groove 103 and the protrusion 203 can be designed technologically.

the primary side iron core 104 is arranged inside the primary side protective shell 101, the secondary side iron core 204 is arranged inside the secondary side 2 protective shell, the primary side iron core 104 and the secondary side iron core 204 are of a discontinuous structure, the primary side and the secondary side are separated through two air gaps of a primary side 1 and a secondary side 2, the primary side iron core 104 and the secondary side iron core 204 are symmetrically arranged in a concave shape, grooves 103 formed by the primary side iron core 104 and the secondary side iron core 204 are oppositely arranged, the primary winding 105 is sleeved in the middle of the primary side iron core 104, the secondary winding 205 is sleeved in the middle of the secondary side iron core 204, the winding turn ratio of the primary winding 105 to the secondary winding 205 is 1:1, the primary winding 105 and the secondary winding 205 are only in magnetic connection but not in direct electrical connection, and the electricity utilization safety isolation of the secondary side 2 is realized.

preferably, the secondary side 2 winding of the overhaul socket box can be provided with a middle tap to provide power outputs of different voltage levels, so that the power consumption requirements of equipment of different voltage levels are met.

The primary side protective casing 101 is internally provided with a contactor 106, a terminal row 107, a proximity switch (not shown in the figure) and a controller 108, one end of a primary winding 105 is connected with one end of a phase pole of the contactor 106, the other end of the phase pole of the contactor 106 is connected with the terminal row 107, the terminal row 107 is connected with one end of an N pole of the contactor 106, the other end of the N pole of the contactor 106 is connected with the other end of the primary winding 105, the proximity switch is started according to the distance between the primary side protective casing 101 and a secondary side protective casing 201 to control the controller 108, and the controller 108 controls the opening and closing of the two poles of the contactor 106.

as shown in fig. 1 and fig. 7 ~ 9, a socket set 206 is provided in the secondary side 2 protective housing, an outer side of the socket set 206 is located on a wall surface of one side of the secondary side protective housing 201, and both ends of the socket set 206 are connected ~ both ends of the secondary winding 205.

As shown in fig. 1 and 2, the middle part of elementary side protective housing 101 other end is equipped with back gland 109, be connected through flexible seal assembly 110 between the other end of back gland 109 and elementary side protective housing 101, back gland 109 runs through and is equipped with screw hole 111, be equipped with the bolt in screw hole 111, back gland 109 passes through bolt-up with flexible seal assembly 110, and this flexible seal assembly 110 can adopt flexible rubber or silica gel sealing washer or on-the-spot foaming sealing washer etc. the middle part of back gland 109 and flexible seal assembly 110 is followed and transversely runs through and is equipped with power cable hole 112, and power cable hole 112 staggers with screw hole 111 and sets up, and power cable hole 112 is used for holding power cable and passes through.

according to the safe isolated type separable three-proofing maintenance socket box, the controller 108 adopts an AC220 power supply, the power supply is taken from between a cable head of the power supply box and the contactor 106, when the safe isolated type separable three-proofing maintenance socket box is implemented, a primary side 1 is fixedly installed in a severe environment field, a secondary side 2 is arranged in a safe cleaning area, a coil of the contactor 106 of the primary side 1 is disconnected in a power-off mode, and the controller 108 operates in a live mode.

When the overhaul socket box needs to be put into use, an overhaul worker or a field worker enables a secondary side 2 of the overhaul socket box carried along to be matched and connected with a primary side 1 fixedly installed on the field, when the primary side protective shell 101 and the secondary side protective shell 201 are matched in place, each proximity switch in the primary side 1 is automatically triggered, at the moment, the controller 108 automatically gives a power-on command type, the linkage control contactor 106 is closed, and the overhaul socket box is in a power-on no-load state.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.