95results about How to "Convenient wiring operation" patented technology

The invention relates to the technical field of power equipment, in particular to a skid-mounted electric control integrated transformer substation and a wiring device and wiring method thereof, and the wiring device comprises a transfer box, plugs and / or sockets which are arranged in at least two skid blocks of the transformer substation respectively and are detachably mounted on the mounting walls of the transfer box; one end of the cable connected with the transfer box is connected with a terminal of the electrical element in the skid, and the other end of the cable is inserted into the plug and / or the socket; and the plug is plugged on the socket of the same transfer box or plugged on the socket of another transfer box and is used for connecting cables with different skid distances. According to the invention, safe wiring at different distances between the skid blocks can be realized through the transfer box, and the convenience of wiring between the skid blocks is improved.

The invention provides a power distribution area line loss inspection device, which comprises a storage assembly, the storage assembly comprises a mainframe box, and the end part of an outward extending frame body is connected with a line loss detection mainframe; a take-up wheel is mounted in the second storage tank, a first detection probe is wound on the outer wall of the take-up wheel, the first detection probe is used for being clamped on the wiring terminal, and the first detection probe is connected with the line loss detection host; a hanging assembly is mounted in the fourth storage tank and is used for being hung on the inspection ladder; straps are arranged on the back face of the mainframe box, a storage pipe is arranged on the side face of the mainframe box, an operation assembly is inserted into the storage pipe, the top end of the operation assembly is detachably connected with a walking assembly, and the walking assembly is used for being clamped to a high-altitude cable in a power distribution area; a second detection probe is installed on the side portion of the walking assembly. Multiple tools can be carried in a centralized mode, high-altitude operation is easy and convenient, the walking assembly can drive the second detection probe to walk along the cable for routing inspection, and therefore line loss routing inspection can be conducted on the cable in the rural area.

The utility model relates to the technical field of PLC control cabinets, and discloses a PLC control cabinet convenient for wiring, which comprises a cabinet body, an installation mechanism is arranged on the outer side of the cabinet body, and a connection frame is arranged on one side of the installation mechanism of the cabinet body. According to the PLC control cabinet convenient for wiring, through arrangement of the limiting mechanism, a limiting block is pulled to move in the direction away from the fixed cylinder, then the limiting block is pushed to move, a boss slides in a sliding groove, when a worker moves the boss to a proper position, pulling of the limiting block is stopped, and the worker can conveniently carry out wiring. At the moment, a spring in a compressed state can push a circular plate to abut against the inner wall of a sliding groove, limiting blocks are not prone to sliding in the wiring process, good stability is achieved, then a worker clamps a cable into the corresponding limiting blocks, the purpose of limiting is achieved, the convenience of wiring storage is improved, and the working efficiency is improved. The maintenance and troubleshooting process is simplified, the line is limited and stored, and the practicability of the device is enhanced.

The invention relates to the technical field of transformer testing, and discloses a transformer parameter comprehensive tester which comprises an anti-interference shell, a power socket, a grounding pole, a USB interface, an RS232 communication interface, a power switch, an internal and external power supply change-over switch, a display touch screen, a micro printer, a wiring terminal panel, a Bluetooth communication module, a communication bus and an internal power supply. By integrating the anti-interference shell, the power socket, the grounding pole, the USB interface, the RS232 communication interface, the power switch, the internal and external power supply change-over switch, the display touch screen, the miniprinter, the wiring terminal panel, the Bluetooth communication module, the communication bus and the internal power supply, all test items can be completed through one-time wiring, and the workload of field test personnel is reduced; the testing accuracy and reliability are improved, the influence of external electromagnetic interference on the testing result is effectively reduced through the anti-interference shell and the shielding measure, the requirements of different occasions and different transformer parameter testing can be met, and the testing device has wide application prospects.

A computer room wiring structure comprises a wiring cylinder, a tightening sleeve, a positioning lock sleeve, a position control supporting rod, a worm, a worm wheel disc and a fixing plate, the wiring cylinder is provided with a plurality of cable arrangement grooves, the cable arrangement grooves are matched with cables, the cable arrangement grooves are connected with the cables, the cables are connected with the inner side of an anti-skid rubber mat, the outer side of the anti-skid rubber mat is connected with the wiring cylinder, and the wiring cylinder penetrates through a rotating cylinder. The wiring cylinder is provided with an outer baffle plate; the outer baffle plate is attached to the rotating cylinder; the upper part of the rotating cylinder is provided with a limiting support sleeve; the limiting support sleeve is connected with a fixed plate; the limiting clamping groove and the limiting clamping plate penetrating hole are matched with the limiting clamping plate, the limiting clamping plate penetrates through the limiting clamping plate penetrating hole, the limiting clamping plate is connected with the limiting clamping groove, and the limiting clamping groove is provided with a positioning lock groove.

The utility model relates to the technical field of distribution frames, in particular to a multi-row type optical fiber distribution frame, which comprises a box body, a sealing cover is movably connected to the rear side of the top of the box body, an adjusting box is fixedly connected to the top of the box body, a coupler group is inserted in a front side plate of the box body, a bunching mechanism is arranged in the adjusting box, and the bunching mechanism is connected with the box body. And an assembling mechanism is arranged on the front side of the box body. According to the utility model, the bunching of the optical fiber is realized through the bunching mechanism, so that the bunching disc can be adjusted according to the length of the optical fiber in the distribution frame, the assembly of the coupler group is realized through the assembly mechanism, the coupler group can be assembled and disassembled by a part of devices, the wiring operation of the optical fiber is facilitated, and the convenience and adjustability of the device are improved.

The utility model discloses an adapter used for a whole set of switch equipment, comprising a frame and a substrate, two sides of the frame are provided with a wire inlet assembly and a wire outlet assembly, the substrate is internally provided with a bus guide bar, the wire outlet assembly comprises a wire outlet contact sheet group, the wire outlet contact sheet group comprises two opposite wire outlet contact sheets, and the wire outlet contact sheet group comprises two opposite wire outlet contact sheets. Each outgoing line contact piece comprises a fixing part, a bending part, an extending part and a positioning part, each outgoing line contact piece is provided with a conductive wire row, each conductive wire row comprises a plurality of parallel conductive wires, the fixing parts of the adjacent outgoing line contact pieces are mutually connected, an inserting cavity is formed between the extending parts of the adjacent outgoing line contact pieces, one end of each conductive wire row abuts against the inner side face of the corresponding extending part, and the other end of each conductive wire row abuts against the corresponding positioning part. The other end of the conductive wire row is buckled on the positioning part, and the middle part of the conductive wire row is provided with at least one protruding elastic contact part. According to the utility model, the conductive wire row is stressed and deformed to form a stable conductive contact surface with an external plug; and in addition, the plugging acting force is small in the plugging process, wiring operation is facilitated, and the plug is prevented from being abraded in the plugging process.

The aviation winding vehicle comprises a reel, a reel is fixedly arranged in the middle of the reel, a left supporting plate is arranged at the left end of the reel, a right supporting plate is arranged at the right end of the reel, a stainless steel waterproof distribution box is fixedly arranged on the left end face of the left supporting plate, and a flash lamp is fixedly arranged at the upper end of the stainless steel waterproof distribution box. The reel comprises a left baffle and a right baffle, a first driven wheel is arranged at the right end of the reel, a vertical support is arranged at the position of a left port of a handle through hole in the lower rear end of the right supporting plate, a first driving wheel is fixedly arranged at the left end of a driving shaft at the upper end of the vertical support, and a first chain is arranged between the first driving wheel and the first driven wheel. A handle insertion hole is formed in the right end face of the driving shaft, and a hand-cranking handle is arranged in the handle insertion hole. A rectangular frame is arranged below the reel, and a plurality of universal wheels are arranged on the lower end face of the rectangular frame. According to the technical scheme, the structural design is reasonable, the wire coil is convenient to carry, waterproof performance is good, and safety and reliability are achieved.

The utility model discloses a clamping and embedding assembled button switch which comprises a switch body which comprises an insulating outer shell and a switch function assembly. A main body of the insulating outer shell is a regular cylindrical barrel, an annular clamping and embedding step edge is formed on the upper edge of the regular cylindrical barrel, and the switch function assembly is packaged in the regular cylindrical barrel. First concave parts are formed in the positions, on the two sides of the regular cylindrical barrel, of the insulating outer shell, elastic buckles are formed at the positions of the first concave parts, and the elastic buckles are matched with the annular clamping and embedding step edges to form a combined clamping and embedding structure. The insulating outer shell is respectively provided with a group of wiring structures on the bottom surface and one side of the lower part of the regular cylindrical barrel, and the wiring structure on one side of the lower part of the regular cylindrical barrel is located in the second concave part. The utility model has the advantages of good assemblability, excellent insulating property, strong stability, long service life and the like, and is suitable for various electronic devices, especially for the operation panel assembly work of closed devices.

The utility model discloses an air conditioner outdoor unit and an air conditioner. The air conditioner outdoor unit comprises a shell, an air inlet and an air outlet, the middle partition plate is arranged in the shell and used for dividing the space in the shell into a fan cavity and a compressor cavity; the electric control assembly is arranged on the middle partition plate, and a wire on the electric control assembly is led out of the lower end of the electric control assembly, extends in the direction away from the fan cavity and extends to the side wall, away from the fan cavity, of the shell. According to the air conditioner outdoor unit, a large operation space is formed between the electric control assembly and the side wall, away from the draught fan cavity, of the shell, a worker can conduct wiring operation between the electric control assembly and the electric element conveniently, and the wire embedding working time is shortened; and a worker can conveniently overhaul an electric control assembly located in the air conditioner outdoor unit or disassemble the electric control assembly from the middle partition plate, and the risk that other parts are damaged due to the small operation space is effectively reduced. And meanwhile, the space of the electric control assembly shielded by the wiring is reduced, and the assembly and maintenance efficiency is improved.

The present invention discloses a lamp installation device, comprising: a lamp stand A and a lamp stand B, wherein both ends of the lamp stand A are provided with installation openings, a connecting device is provided in the installation openings, both ends of the lamp stand B are provided with plug holes, and a lamp body is installed between the lamp stand A and the lamp stand B; two slide rail frames, the slide rail frames are provided with slide rails, and both ends of the slide rail frames are correspondingly installed between the installation openings of the lamp stand A and the plug holes of the lamp stand B, and the plug holes of the lamp stand B are connected with the slide rails of the slide rail frames; a fixed frame, one end of the fixed frame is inserted into the plug hole of the lamp stand B, the slide rail of the slide rail frame, and is detachably connected with the connecting device of the lamp stand A. The lamp installation device adopts an external fixed frame for installation, can provide support for the lamp, and the cooperation of the slide rail frame and the fixed frame can realize the function of slide rail sliding, and this installation method is simple to operate.

The utility model relates to the field of branch boxes, in particular to a branch box easy for wiring. The distribution box easy for wiring comprises a distribution box. The wire rod fixing plate is arranged in the branching box, and a rectangular groove is formed in one side wall of the wire rod fixing plate; the pressing plate is arranged in the rectangular groove and is used for fixing the wire rod; and the groove is formed in one side of the wire rod fixing plate, and a lifting mechanism is arranged in the groove. According to the distribution box easy for wiring, the wire rods are placed on the rectangular grooves of the wire rod fixing plate, the effect of fixing the wire rods can be achieved through downward pressing of the pressing plate, then wiring operation can be carried out conveniently, and the defect that wiring is not convenient in the distribution box where the wire rods are stacked is overcome.

The invention discloses movable video monitoring equipment with photovoltaic energy, and relates to the technical field of video monitoring, the movable video monitoring equipment comprises a base and a rod body fixedly connected with the top of the base, fixing frames are fixed in the two sides of the bottom of the rod body, and wrench mechanisms are arranged in the fixing frames. The wrench mechanism, the hydraulic adjusting mechanism and the moving mechanism are matched, when the equipment is fixed, a base makes close contact with the ground, displacement caused by external force is effectively avoided, stability is greatly improved, on the aspect of moving convenience, the moving mechanism can stretch out and draw back conveniently, universal wheels stretch out during moving, moving is convenient and flexible, and the equipment has photovoltaic energy and is convenient to use. The video monitoring module and the photovoltaic panel can be folded and put away through the connecting rod mechanism when the equipment moves, the occupied space is reduced, the gravity center is lowered, the moving trafficability and stability are improved, shaking and even toppling during moving are effectively prevented, it is guaranteed that the equipment runs safely and reliably, and the equipment is widely suitable for various monitoring scenes.

The utility model relates to the technical field of nursing devices, and provides a multifunctional postoperative nursing garment which comprises a garment body, a lining and an outer garment are arranged on the upper portion of the front face of the garment body, lactation openings are formed in the positions, on the chest portions of the two sides, between the lining and the outer garment respectively, and an abdomen pocket is arranged at the abdomen portion on the lower portion of the front face of the garment body. The sleeves are arranged on the two sides of the clothes body, and the sleeves are provided with sleeve openings capable of being opened and closed; the collar is arranged at the top of the garment body, the front portion and the rear portion of the collar are flush and are respectively provided with a collar notch, and the collar notches divide the collar into two halves. The sleeves are provided with the sleeve openings capable of being opened and closed, and the whole sleeves can be opened. The breast-feeding openings are formed in the clothes body, and breast-feeding can be directly carried out through the breast-feeding openings. The abdomen pocket is arranged on the coat body, so that the pregnant woman can conveniently use the coat. The collar is flush front and back, is divided into two halves by the collar notch, and can be used positively and negatively.

The utility model relates to the technical field of cable wiring, and discloses a building wiring device assembly, which comprises a winding mechanism, a placing mechanism and a door body mechanism, the placing mechanism is arranged at the inner side of the winding mechanism, the door body mechanism is arranged in front of the winding mechanism, the winding mechanism comprises a shell, one end of the shell is provided with a ventilation opening, and the ventilation opening is communicated with the door body mechanism. A lower wire fixing block is fixedly connected to the inner bottom wall of the shell, a collecting box is slidably connected to the inner wall of the shell, and an inner sliding shaft is fixedly connected to the upper surface of the lower wire fixing block. Through the arrangement of the rotating handle, a user can pull the rotating handle, open the interior of the shell, place a to-be-processed circuit on the upper surface of the lower wire fixing block, determine the length of a to-be-cut outer skin and press the pull-down handle downwards, so that the lower wire upper fixing block moves downwards, and then the to-be-cut outer skin is cut off. And meanwhile, the outer sliding shaft slides on the surface of the inner sliding shaft, so that the cutting knife is in contact with the skin, and the skin of the circuit can be cut.

This utility model relates to the field of railway track inspection technology, specifically disclosing a railway track fastener inspection instrument, including a housing. A quick-locking mechanism is provided at the bottom of the housing, comprising two docking blocks. An electromagnetic impedance detector body is housed within the inner cavity of the housing. The tops of the two docking blocks are fixedly connected to the bottom of the electromagnetic impedance detector body. Slots adapted to the docking blocks are provided on both sides of the bottom of the inner cavity of the housing. This utility model enables convenient installation and secure fixing of the electromagnetic impedance detector body, effectively reducing the impact of vibration or collision during transportation and use, thereby improving the durability of the equipment and the reliability of the inspection data. It also provides good fixing for the connecting wires, further ensuring the stable operation of the inspection process.

The 35kV visible bus box with the built-in lightning arrester comprises a bus box body, one side of the bus box body is fixedly connected with a side baffle plate, the inside of the side baffle plate is fixedly connected with a transparent plate, and the upper end of the bus box body is provided with a connecting port. According to the invention, through the arrangement of the lightning arrester, lightning impulse can be effectively absorbed, overvoltage can be dissipated, and impulse and damage degree can be reduced, so that the transformer and transformer accessory equipment can be protected from being struck by lightning, and the lightning arrester can also be used as a post insulator to support a wiring copper bar in the box body of the bus box. According to the novel bus box, the use space in the box body of the bus box can be effectively saved, through the arrangement of the transparent plate, the situation in the box body of the bus box can be observed conveniently, possible problems can be found in time, accordingly, corresponding measures are taken for repair and maintenance, stable operation of a transformer is guaranteed, and through the arrangement of the end plate, wiring operation is facilitated.

The embodiment of the utility model relates to the technical field of household appliances, in particular to a refrigerator. The refrigerator comprises a refrigerator body, a door body and a decorating part, the refrigerator body comprises a refrigerator shell, a refrigerator liner and a liner opening assembly, the liner opening assembly is fixedly connected with the refrigerator liner and the refrigerator shell, the liner opening assembly is constructed to form a taking and placing opening of the refrigerator liner, and a wire outlet is formed in the front side of the top of the liner opening assembly so that a cable in the refrigerator body can be led out from the wire outlet; electrical connection with electrical parts in the door body is achieved, wiring operation of cables during production and maintenance is facilitated, operation is simple, and efficiency can be improved. The decorating part is fixed to the front side of the top of the container opening assembly, so that the wire outlet and the cable led out of the wire outlet are located on the back face of the decorating part, and the appearance effect of the refrigerator is guaranteed.

The utility model relates to the technical field of shielding doors, and discloses a flexible wiring shielding door assembly which comprises a shielding door body, a mounting groove is formed in the shielding door body, a mounting plate is mounted at the position of a groove opening of the mounting groove, four clamping grooves are formed in the groove wall of the mounting groove, every two clamping grooves form a group, and the mounting plate is mounted on the mounting groove. The mounting plates are arranged in the mounting groove and are distributed at the groove bottom and the groove top of the mounting groove respectively, two first clamping blocks are fixed to the bottom of each mounting plate, and two clamping assemblies are arranged on the top of each mounting plate. When the mounting plate is used, a worker can quickly dismount and mount the mounting plate without using complicated tools or equipment, so that the working efficiency is improved, the time and the labor cost are saved, the dismounting and mounting processes are simple and clear and can be completed only by operating according to a certain sequence, and the mounting plate can be quickly dismounted and mounted by manually pulling down the limiting block and releasing the limiting block. A worker can easily complete the dismounting and mounting processes, and wiring operation can be conveniently carried out on the shielding door body.

The utility model discloses a tunnel induction marker lamp which comprises a shell, the two opposite side portions of the shell are obliquely arranged, and the vertical cross section of the shell is gradually increased from the top to the bottom of the shell. The fixing assembly is arranged in the shell and is used for fixing the shell on a tunnel; the illumination assembly is arranged on the shell and used for illuminating road conditions near the tunnel; the fixing assemblies are symmetrically installed in the center of the interior of the shell, the lighting assembly is connected with a wire, and wire passing assemblies for hiding the wire are arranged on the side edges of the fixing assemblies and the side edge of the shell. According to the induction lamp, through the fixing assembly and the wire passing assembly which is arranged on the side edge of the shell and used for hiding the wire, the assembly structure is simple, installation can be carried out from inside to outside, the lampshade does not need to be fixed through glue, wiring operation can be conveniently carried out after the induction lamp is assembled, wiring time is saved, and installation operation steps are simplified.

The invention provides a wiring device, which comprises a wiring box, the first surface of the wiring box is provided with a binding post, and the binding post is used for being electrically connected with an instrument to be wired; wherein a first wiring hole is formed in the face, opposite to the first face, of the junction box, a second wiring hole is formed in the face, intersecting with the first face, of the junction box, the first wiring hole and the second wiring hole are communicated with each other, one of the first wiring hole and the second wiring hole is used for inserting an external wire, and the other of the first wiring hole and the second wiring hole is used for inserting an external wire. And the other one of the first wiring hole and the second wiring hole is used for inserting a crimping piece so as to fix the external wire. Therefore, the extension connection of the external lead can be quickly and conveniently realized, and greater flexibility and feasibility are provided for the installation of the instrument to be connected.

The utility model provides a control box wiring assembly, belongs to the technical field of control box wiring, and aims to solve the problems that when an existing control box is used for wiring, a bolt and a nut are used for fixing a wiring terminal, dismounting and mounting are inconvenient, a wire head is not prone to being plugged into the bottom of a wiring column pressing piece, and mounting efficiency is low. Comprising a control box body; the L-shaped guide rail is fixedly mounted in the control box body; the fixing block is arranged in the L-shaped guide rail; the wiring board is rotationally connected to the interior of the fixed block; the wire harness fixer is fixedly mounted at the bottom of the control box body; the ventilation blades are rotationally connected to the interior of the control box body; the adjusting assembly is arranged in the control box body; the wire harness fixing assembly is arranged at the bottom of the control box body; and the ventilation assembly is arranged in the control box body. The utility model has the advantages of fast fixation, convenient wiring, convenient ventilation and the like.

The invention relates to the technical field of cable bridges, in particular to a cable bridge convenient for wiring, comprising: a supporting mechanism comprising a supporting side edge and a connecting shaft arranged on the supporting side edge, the supporting side edge being provided with an abutting plate; the protection mechanism comprises a side plate, a bottom plate is arranged on the side plate, an inlet channel and a transverse groove are formed in the side plate, the inlet channel is communicated with the transverse groove, and the protection mechanism further comprises a sliding groove formed in the side plate; the clamping mechanism comprises a sliding shaft arranged in the sliding groove in a sliding mode and a clamping arm arranged on the sliding shaft. In the wiring process of the cable, due to the fact that the bottom of the supporting mechanism is not in a closed state, an operator can conveniently adjust the position of the cable, wiring operation is facilitated, the operable space is increased, the wiring convenience is improved, the wiring difficulty is reduced, and the wiring efficiency is improved.

The utility model provides an intelligent charging monitoring system and equipment, and relates to the technical field of new energy automobile charging, and the system comprises a control module, a current induction module used for inducting an access current value, a relay module used for controlling the on-off of the current, and a wiring module used for accessing an internal circuit of a charging pile. The control module is electrically connected with the current sensing module, the relay module and the wiring module; the current sensing module is electrically connected with the wiring module; the wiring module is electrically connected with the relay module; when the wiring module is connected to an internal circuit of the charging pile, the current induction module induces the size of an access current value of the wiring module, and the control module controls the on-off of the relay module according to the size of the access current value; the household charging device can be conveniently installed in a family for charging and use, and can be matched with a tripping current value in an automobile, a household real-time electricity utilization current value and a household maximum current threshold value for use.

The present invention discloses an electrical connection terminal and a fuse-type disconnector having the electrical connection terminal, wherein the electrical connection terminal comprises an electrical connection seat, the electrical connection seat comprises a first electrical connection part and a second electrical connection part vertically connected to the first electrical connection part, the first electrical connection part has two clamping arms arranged opposite to each other, a clamping groove is formed between the two clamping arms, the second electrical connection part is an "E"-shaped sheet structure, which comprises a connecting part and three long strips arranged in intervals and parallel to each other, the same end of the three long strips is fixedly connected to the connecting part, the connecting part is vertically connected to the bottom end of the first electrical connection part, the three long strips are respectively a wiring part located in the middle and an insertion part located at both sides, a wiring frame is sleeved on the wiring part, and a crimping screw is screwed on the upper part of the wiring frame. With the structure of the present invention, the installation of the electrical connection terminal and the connection operation with the external wire are very convenient, which is conducive to improving work efficiency.

The invention discloses a metering device secondary circuit wiring checking device and method, and relates to the technical field of electric power auxiliary tools, and the device comprises a test host which is used for generating a carrier wave test signal and transmitting the carrier wave test signal to a metering device secondary circuit; the test slave is used for acquiring a carrier monitoring signal of a secondary circuit of the metering device and performing wiring check; the first connecting line is used for connecting the test host and the first end of the secondary circuit; and the second connecting line is used for connecting the test slave and the second end of the secondary circuit. According to the invention, the test host generates the carrier test signal and provides the test signal for the secondary circuit of the metering device, the test slave monitors the secondary circuit of the metering device to obtain the carrier monitoring signal, and then compares the carrier monitoring signal with the carrier test signal to judge whether the wiring is correct, so that the operation is convenient, and the test efficiency is improved.

The utility model relates to a three-dimensional storage robot which comprises a frame, a driven moving part, a communication control assembly, two driving moving parts and two pallet fork assemblies, the frame is provided with a first containing area, a second containing area and two third containing areas, the driven moving part is arranged in the first containing area, and the two driving moving parts are arranged in the two third containing areas correspondingly; the communication control assembly can control the driving wheel to rotate and control the pallet fork assembly to slide in the first direction. According to the three-dimensional storage robot, by reasonably planning the positions of the communication control assembly, the driven moving part, the two driving moving parts and the two pallet fork assemblies, the driven moving part and the two driving moving parts can define a large area in a limited space; the communication control assembly can conveniently carry out wire arrangement operation with the two active moving parts located on the two sides of the communication control assembly and the two pallet fork assemblies, so that the overall structure is compact, the integration degree is high, the size is small, and operation in a warehouse with the compact space requirement is facilitated.

The utility model relates to the technical field of servo motors, in particular to a power supply wiring mechanism for a servo motor, which comprises a first shell and a second shell. A front end cover and a rear end cover are arranged at the two ends of the first shell respectively, and the front end cover, the first shell and the rear end cover are connected with one another to form a first mounting cavity; the second shell comprises a sleeving part and a shell part, a fan cover is arranged at the rear end of the second shell, and a second mounting cavity is formed among the fan cover, the shell part and the rear end cover; a junction box with a third mounting cavity is arranged on the outer wall of the second shell; a first wire hole is formed in the side wall of the first shell, a second wire hole is formed in the side wall of the second shell, and a third wire hole is formed in the bottom wall of the junction box. The mechanism not only is simple in structure, but also can gather the wire harnesses of the first mounting cavity and the second mounting cavity into the junction box at the top, so that the unified wiring operation with the outside is more convenient.