CN207638471U - A kind of connection box for motor with arrester - Google Patents
A kind of connection box for motor with arrester Download PDFInfo
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- CN207638471U CN207638471U CN201721776567.3U CN201721776567U CN207638471U CN 207638471 U CN207638471 U CN 207638471U CN 201721776567 U CN201721776567 U CN 201721776567U CN 207638471 U CN207638471 U CN 207638471U
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Abstract
The utility model discloses a kind of connection box for motor with arrester, including box body, box body is equipped with pressure relief device, it is fixedly connected with installation backboard outside the back side panel of box body, arrester is equipped in box body, the shielded box of sealed insulation is covered with outside arrester, box body side plate inner wall is equipped with insulator, power supply lead wire enters box body by entrance hole and fixes on the insulator, the motor connecting wire being connect with power supply lead wire and arrester connecting line are drawn on insulator, motor connecting wire connects machine winding lead after passing through outlet hole, arrester connecting line passes through the binding post for connecting arrester on shielded box after set wiring hole；The utility model is provide with the shielded box of insulated enclosure by setting arrester and outside arrester; can not only effective protection motor from thunder and lightning and dash current influence; avoid motor impaired; the electrical equipment in arrester and terminal box can also be isolated; it avoids electrical equipment in docking wire box from damaging, ensures safety when patching operations.
Description
Technical field
The utility model is related to motor wiring unit technical field more particularly to a kind of connection box for motor with arrester.
Background technology
Connection box for motor is one of electrician's ancillary equipment of motor, because the electric wire of motor is across conduit, and
The position of corner is wanted in the joint area of electric wire, such as conduit, is just used as transition using terminal box, conduit and terminal box
It connects, the electric wire inside spool links up in terminal box, plays the role of protecting electric wire and connects electric wire, therefore, terminal box
Safe operation have vital effect to whole equipment.Wherein, outdoors used in the flame-proof electric motor of equal Code in Hazardous Special Locations
Terminal box have it is higher require standard, cannot occur in box spark, electric arc, etc. electric discharge phenomena, not so easily cause entire
The explosion of terminal box.Mistake when short circuit current is excessive but outdoors in environment, when motor single-phase earthing or lightning ingress
Voltage can generate damage to the insulation of motor, and therefore, the main junction box of motor should install arrester, but because terminal box additional
Internal architectural characteristic and arrester itself does not have explosion-proof performance, therefore, in the motor main junction box used outdoors
It accesses arrester and there is greatly difficult and security risk.
Utility model content
The purpose of this utility model is to provide a kind of connection box for motor with arrester, can effective protection motor from thunder
The influence of electricity and dash current avoids motor impaired, while arrester can also be isolated with component in terminal box, ensures
The safety of terminal box internal wiring operation.
The technical solution adopted in the utility model is：
A kind of connection box for motor with arrester, including box body, box body are equipped with pressure relief device, and the back side panel of box body is solid outside
Surely it is connected with installation backboard, box body is fixedly mounted on by installing backboard on electric machine stand, further includes arrester, arrester setting
It is fixed on box plate in box body and by mounting plate, the shielded box of sealed insulation is covered with outside arrester；It is described
Outlet hole and entrance hole are offered on box body, installation backboard is arranged on outlet hole, and installs backboard and be equipped with and outlet hole
The through-hole matched, the position that box body corresponds to entrance hole outside are equipped with Glan, and Glan is connected through a screw thread plate and is fixed on box body；Box
Side plate inner wall is equipped with insulator, and power supply lead wire enters box body by entrance hole and fixes on the insulator, and insulator is fixed
Meet electric clearance as defined in GB3836.3-2010 explosion-proof criterias between lead position and box body side plate, drawn on insulator with
The motor connecting wire and arrester connecting line of power supply lead wire connection, motor connecting wire sequentially pass through set by outlet hole and installation backboard
Machine winding lead is connected after through-hole, shielded box is equipped with wiring hole, and arrester connecting line connects arrester after passing through wiring hole
Binding post.
The shielded box includes being transversely mounted support plate and vertical installation support plate, is transversely mounted the rear end face and box body of support plate
Back side panel welds, and is transversely mounted the upper surface of the vertical installation support plate of front end face connection of support plate, the vertical lower face for installing support plate
It is welded with the bottom plate of box body, interior earth stud and pressure relief device are arranged on back side panel；It is transversely mounted outside support plate and passes through bolt
Be fixedly connected with insulation cover plate, rear end face, left side and the right side of insulation cover plate respectively with the back side panel of box body, left plate and
Right plate connects, and vertical install has been bolted to connection insulating barrier outside support plate, the lower face of insulating barrier, left side and
Right side is connect with the bottom plate of box body, left plate and right plate respectively.
Described be transversely mounted between support plate and vertical installation support plate is connected by angularly disposed steel plate, steel plate upper surface with
It is transversely mounted the front end face welding of support plate, steel plate lower face and the upper surface of vertical installation support plate are welded.
Multiple threaded connection holes by circular arrangement are uniformly provided on the installation backboard, the back side panel of terminal box is equipped with
With the matched mounting hole of threaded connection hole, installs and be bolted to connection between backboard and terminal box.
The entrance hole is arranged on box plate, and Glan is connected through a screw thread plate and is fixedly mounted below box body, described
Outlet hole and insulator are arranged on box body back side panel, and insulator is located at below outlet hole.
Interior earth stud is equipped in the side plate of the box body, the side plate of box body is externally provided with external ground bolt, interior earth stud
The ground terminal of arrester is connected, external ground is bolted the earth.
Further include service ground bolt, the external ground bolt is arranged outside the right end face of box body, service ground bolt
It is arranged outside left end face.
The utility model has the advantages that：
（1）The shielded box of insulated enclosure is provide with by setting arrester and outside arrester, it can not only effective protection electricity
Machine avoids motor impaired, moreover it is possible to the electrical equipment in arrester and terminal box be isolated, keep away from the influence of thunder and lightning and dash current
Exempt to dock electrical equipment in wire box to damage, ensures safety when patching operations；
（2）By setting the junction being transversely mounted between support plate and vertical installation support plate to the steel being arranged obliquely
Plate avoids and is transversely mounted support plate and vertical installation support plate is directly connected to generate right angle damage power supply lead wire, and then influences motor
Normal safe operation, it is simple in sturcture, ingenious in design；
（3）By being uniformly provided with multiple threaded connection holes by circular arrangement on installation backboard, set on box body back side panel
It sets and passes through corresponding position relationship between change threaded connection hole and mounting hole with the matched mounting hole of threaded connection hole, realization,
Terminal box and the direction of Glan are can be adjusted when installing backboard and being mounted on electric machine stand, facilitates the wiring for adapting to multiple angles
Demand, easy to operate, flexibility is strong.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the left view of Fig. 1.
Reference sign：
1, box body；2, backboard is installed；3, arrester；4, pressure relief device；5, it is transversely mounted support plate；6, insulation cover plate；7, it erects
To installation support plate；8, insulating barrier；9, service ground bolt；10, it is threadedly coupled plate；11, Glan；12, mounting plate；13, it is inscribed
Ground bolt；14, insulator；15, rubber case；16, steel plate；17, arrester connecting line；18, external ground bolt.
Specific implementation mode
As illustrated in fig. 1 and 2, the utility model includes box body 1, and the structure of box body 1 meets the protection etc. of IP55 in GB4208
Grade, box body 1 are equipped with pressure relief device 4, and installation backboard 2 is fixedly connected with outside the back side panel of box body 1, and box body 1 is carried on the back by installing
Plate 2 is fixedly mounted on electric machine stand, arrester 3 is equipped in box body 1, the setting of arrester 3 is in box body 1 and passes through mounting plate 12
It is fixed on 1 bottom plate of box body, the shielded box of sealed insulation is covered with outside arrester 3；
Entrance hole is offered on the bottom plate of box body 1, entrance hole is equipped with Glan 11, and it is solid that Glan 11 is connected through a screw thread plate 10
Fixed to be arranged below 1 bottom plate of box body, the back side panel of box body 1 is equipped with outlet hole, and installation backboard 2 is arranged on outlet hole, and pacifies
It fills backboard 2 and is equipped with through-hole corresponding with there is hole；
1 side plate inner wall of box body is equipped with insulator 14, and power supply lead wire is entered in box body 1 by entrance hole and is fixed on insulation
On son 14, meet between 14 anchor leg position of insulator and the side plate of box body 1 electric as defined in GB3836.3-2010 explosion-proof criterias
Gas gap；
The motor connecting wire being connect with power supply lead wire is drawn on insulator 14（It is not indicated on figure）With arrester connecting line 17,
Motor connecting wire connects machine winding lead after sequentially passing through through-hole set by outlet hole and installation backboard 2, and shielded box is equipped with and connects
String holes, arrester connecting line 17 pass through the binding post of connection arrester 3 after wiring hole；
Interior earth stud 13 is equipped in the side plate of box body 1, the side plate of box body 1 is externally provided with external ground bolt 18, interior ground connection spiral shell
Bolt 13 connects the ground terminal of arrester 3, the connection the earth of external ground bolt 18.
The utility model in order to better understand below in conjunction with the accompanying drawings makees furtherly the technical solution of the utility model
It is bright.
As depicted in figs. 1 and 2, installation backboard 2 uses circular slab, installs and is uniformly provided at the plate face marginal position of backboard 2
The back side panel of multiple threaded connection holes according to circular arrangement, box body 1 is equipped with and the matched mounting hole of threaded connection hole, installation
It is bolted to connection between backboard 2 and box body 1.Outlet hole is arranged on back side panel and positioned at the front of installation backboard 2, peace
It fills backboard 2 to be equipped with the matched through-hole of outlet hole, the insulation to play a supportive role is fixed on the back side panel below outlet hole
Son 14, power supply lead wire, which enters via wiring Glan 11 and entrance hole after box body 1, accesses insulator 14, and insulator 14 is drawn and power supply
The motor connecting wire of lead connection, motor connecting wire connect machine winding lead after passing through outlet hole, for powering to motor, electricity
Rubber case 15 is arranged on machine connecting line, the outer diameter of rubber case 15 is matched with the aperture of outlet hole；Three binding posts of arrester 3
An arrester connecting line 17 is drawn respectively, and three arrester connecting lines 17, which pass through, accesses insulation after set wiring hole on shielded box
Son 14 is simultaneously connected with power supply lead wire, to eliminate lightning impulse, meanwhile, the individual cavities that shielded box is formed are effectively isolated arrester
3, it avoids arrester 3 from docking other electrical equipments in wire box and damages.
When terminal box is mounted on by installing backboard 2 on electric machine stand, according to inlet wire direction difference, need to dock wire box
The direction of middle Glan 11 is adjusted, at this point, need to only rotate installation backboard 2, makes the correspondence between threaded connection hole and mounting hole
Relationship generates offset, will install backboard 2 by bolt after adjusting to proper angle and back side panel is fixed, then consolidate mounting plate 12
It is scheduled on the change that 11 direction of Glan can be realized on electric machine stand, substantially increases flexibility when the utility model installation, and
It is simple in structure, it is easy to operate.
As shown in Fig. 2, shielded box includes being transversely mounted support plate 5 and vertical installation support plate 7, it is transversely mounted the rear end of support plate 5
Face and the back side panel of box body 1 weld, and the front end face for being transversely mounted support plate 5 connects vertical installation branch by angularly disposed steel plate 16
The upper surface of plate 7, the vertical lower face for installing support plate 7 and the bottom plate of box body 1 weld, and wiring hole setting is being transversely mounted support plate 5
On, interior earth stud 13 and pressure relief device 4 are arranged on back side panel；It is transversely mounted outside support plate 5 and has been bolted to connection
Insulation cover plate 6, rear end face, left side and the right side of insulation cover plate 6 respectively with the back side panel, left plate and right plate of box body 1
Connection, vertical install have been bolted to connection insulating barrier 8, lower face, left side and the right side of insulating barrier 8 outside support plate 7
End face is connect with the bottom plate of box body 1, left plate and right plate respectively.
It is transversely mounted support plate 5 and vertical installation support plate 7 is directly connected to the right angle to be formed and can form more sharp keen contact surface,
And then dock the cables such as the power supply lead wire in wire box and play damage effect, and angularly disposed steel plate 16 forms buffering suface, effectively
This case is avoided, and then ensures the normal safe operation of motor, it is simple in sturcture, ingenious in design.
In order to further increase the safety of terminal box entirety, the right plate of box body 1 is equipped with external ground bolt 18, box body
1 left plate is equipped with service ground bolt 9, is equipped with interior earth stud 13 in the back side panel of box body 1, external ground bolt 18 and standby
The earth is connected with earth stud 9, interior earth stud 13 connects the ground terminal of arrester 3.Due to being commonly installed when terminal box is installed
In motor side, when terminal box is liftoff closer, directly external ground bolt 18 can be grounded, but when terminal box is liftoff farther out
When, then the casing that external ground bolt 18 is first connected to motor is needed, then by the chassics earth of motor, in the left side of box body 1
External ground bolt 18 and service ground bolt 9 are respectively set on plate and right plate, it can be according between left and right side plate and electrode
Distance, one of selected external ground bolt 18 and service ground bolt 9 be attached with motor case, and flexibility is strong,
And the regular of external cabling is improved indirectly.
Under thunderstorm weather, because being struck by lightning or when influencing of dash current in power supply, arrester 3 by with power supply lead wire
Connection effectively eliminate thunder and lightning and dash current and influence, meanwhile, the buffer action of shielded box, be arrester 3 by being struck by lightning when
Other electrical equipments that will not be docked in wire box generate destruction, effectively improve the peace of electrical equipment in motor safety and terminal box
Full performance.
Finally it should be noted that：Above example is only to illustrate the technical solution of the utility model, rather than its limitations；
Although the utility model is described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that,
It can still modify to the technical solution recorded in previous embodiment, either to which part or all technical features
Progress equivalent replacement, and these modifications or replacements, the utility model embodiment that it does not separate the essence of the corresponding technical solution
The range of technical solution.
Claims (7)
1. a kind of connection box for motor with arrester, including box body, box body is equipped with pressure relief device, is fixed outside the back side panel of box body
It is connected with installation backboard, box body is fixedly mounted on by installing backboard on electric machine stand, it is characterised in that：Further include arrester,
Arrester, which is arranged in box body and by mounting plate, to be fixed on box plate, be covered with outside arrester sealed insulation every
From case；Offer outlet hole and entrance hole on the box body, installation backboard is arranged on outlet hole, and install backboard be equipped with
The matched through-hole of outlet hole, the position that box body corresponds to entrance hole outside are equipped with Glan, and Glan is connected through a screw thread plate and is fixed at
On box body；Box body side plate inner wall is equipped with insulator, and power supply lead wire enters box body by entrance hole and fixes on the insulator, absolutely
Meet electric clearance as defined in GB3836.3-2010 explosion-proof criterias, insulator between edge anchor leg position and box body side plate
The motor connecting wire and arrester connecting line, motor connecting wire that upper extraction is connect with power supply lead wire sequentially pass through outlet hole and installation
Machine winding lead is connected after through-hole set by backboard, shielded box is equipped with wiring hole, and arrester connecting line connects after passing through wiring hole
Connect the binding post of arrester.
2. the connection box for motor according to claim 1 with arrester, it is characterised in that：The shielded box includes laterally pacifying
Support plate and vertical installation support plate are filled, the back side panel of the rear end face and box body that are transversely mounted support plate welds, before being transversely mounted support plate
The bottom plate of the upper surface of the vertical installation support plate of end face connection, the vertical lower face for installing support plate and box body welds, interior earth stud
It is arranged on back side panel with pressure relief device；It is transversely mounted outside support plate and has been bolted to connection insulation cover plate, insulation cover plate
Rear end face, left side and right side connect respectively with the back side panel of box body, left plate and right plate, it is vertical install it is logical outside support plate
Cross bolt and be fixedly connected with insulating barrier, lower face, left side and the right side of insulating barrier respectively with the bottom plate of box body, left side
Plate is connected with right plate.
3. the connection box for motor according to claim 2 with arrester, it is characterised in that：It is described to be transversely mounted support plate and erect
It is connected between installation support plate by angularly disposed steel plate, steel plate upper surface and the front end face for being transversely mounted support plate weld, steel
Plate lower face and the upper surface of vertical installation support plate are welded.
4. the connection box for motor according to claim 1 with arrester, it is characterised in that：It is uniformly set on the installation backboard
There are multiple threaded connection holes by circular arrangement, the back side panel of terminal box to be equipped with and the matched mounting hole of threaded connection hole, peace
It is bolted to connection between dress backboard and terminal box.
5. the connection box for motor according to claim 1 with arrester, it is characterised in that：The entrance hole is arranged in box body
On bottom plate, Glan is connected through a screw thread plate and is fixedly mounted on box body lower section, after the outlet hole and insulator are arranged at box body
On side plate, insulator is located at below outlet hole.
6. the connection box for motor according to claim 1 with arrester, it is characterised in that：It is equipped in the side plate of the box body
The side plate of interior earth stud, box body is externally provided with external ground bolt, interior to be grounded the ground terminal for being bolted arrester, external ground bolt
Connection the earth.
7. the connection box for motor according to claim 6 with arrester, it is characterised in that：Further include service ground bolt,
The external ground bolt is arranged outside the right end face of box body, and service ground bolt is arranged outside left end face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721776567.3U CN207638471U (en) | 2017-12-19 | 2017-12-19 | A kind of connection box for motor with arrester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721776567.3U CN207638471U (en) | 2017-12-19 | 2017-12-19 | A kind of connection box for motor with arrester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207638471U true CN207638471U (en) | 2018-07-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721776567.3U Active CN207638471U (en) | 2017-12-19 | 2017-12-19 | A kind of connection box for motor with arrester |
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| CN (1) | CN207638471U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109449865A (en) * | 2018-11-05 | 2019-03-08 | 国网上海市电力公司 | A method of electrification Tear Down Deficiency low voltage surge arrester |
-
2017
- 2017-12-19 CN CN201721776567.3U patent/CN207638471U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109449865A (en) * | 2018-11-05 | 2019-03-08 | 国网上海市电力公司 | A method of electrification Tear Down Deficiency low voltage surge arrester |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 312300 Shangyu Economic Development Zone, Shaoxing City, Zhejiang Province Co-patentee after: WOLONG ELECTRIC NANYANG EXPLOSION PROTECTION GROUP CO., LTD. Patentee after: Wolong Electric Drive Group Co., Ltd. Address before: 312300 Shangyu Economic Development Zone, Shaoxing City, Zhejiang Province Co-patentee before: WOLONG ELECTRIC NANYANG EXPLOSION PROTECTION GROUP CO., LTD. Patentee before: Wolong Electric Group Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder |