CN203492301U - Dust-proof and spraying-proof control box - Google Patents
Dust-proof and spraying-proof control box Download PDFInfo
- Publication number
- CN203492301U CN203492301U CN201320477803.7U CN201320477803U CN203492301U CN 203492301 U CN203492301 U CN 203492301U CN 201320477803 U CN201320477803 U CN 201320477803U CN 203492301 U CN203492301 U CN 203492301U
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- preventing dust
- control cabinet
- casing
- spray control
- dust spray
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Abstract
The utility model provides a dust-proof and spraying-proof control box, which comprises a main body and an outer door. The main body is composed of a box top, a box body and a box bottom. One side of the box body is provided with an opening. The outer door is hinged to one side of the box body. The inner side of the outer door is provided with a sealing strip in an enclosed shape. The periphery of the opening of the box body is provided with a side flange protruded to the outside in an enclosed shape. When the outer door is closed, the side flange is tightly pressed by the sealing strip. In this way, the control box is sealed. The control box in the utility model is good in structural intensity and high in level of protection. The control box can be installed indoors or outdoors, and can be widely used for low-voltage distribution and control purposes in corrosive, metallic-dust-containing, humid and severe environments in the fields of chemical industry, metallurgy, salt mist and the like.
Description
Technical field
The utility model relates to controller switching equipment field, more particularly, relates to a kind of preventing dust spray control cabinet.
Background technology
Along with technological progress and the development of the industries such as metallurgy, chemical industry, electric power, more and more higher to the quality of control system, performance requirement.As hardware-protection cabinet of control system, to its structural strength, the aspects such as degree of protection and presentation quality, have higher requirement.
Along with the continuous adjustment of traditional industry structure and the rapid upgrading of industrialization, Electric automation technology has been stepped into unprecedented developing stage.On market in the urgent need to the electric auxiliary products of intellectuality, high reliability, high-protection level.
With regard to high-protection level control cabinet (dustproof, anti-spray), mainly take at present polycarbonate product as main, steel construction seldom, its complex structure, and dustproof, anti-spraying effect is undesirable.
Therefore, be necessary to study a kind of simple in structure and dustproof, the effective control cabinet of anti-spray.
Utility model content
An object of the present utility model is to provide a kind of control cabinet of preventing dust simple in structure spray.
Another object of the present utility model is to provide the control cabinet of the preventing dust spray that a kind of degree of protection is high.
According to one side of the present utility model, a kind of preventing dust spray control cabinet comprises: main body, and at the bottom of comprising case top, casing and case, a side of casing is formed with opening; External door, is hinged on the described side of casing, in the inner side of external door, is provided with close-shaped sealing strip, wherein, in the around openings of casing, be formed with outstanding laterally close-shaped side flange, when external door is closed, described sealing strip compresses described side flange, to seal described control cabinet.
The groove that protects extending to body interior can be installed on described side flange, and one end of protecting groove forms hook, to hang on described side flange and with side flange, combines closely, and protects the other end of groove towards the opposite direction bending of hook, thereby forms doorframe.
Described control cabinet also can comprise the inside door of the inside that is arranged on casing, and this inside door can be arranged on described doorframe.
Described sealing strip is arranged on the inner side of described external door, and with protect groove close contact to realize sealing.
Described sealing strip can be formed by polyurethane foam sealing joint strip.
Described external door can be connected with casing by inner hinge.
Described preventing dust spray control cabinet also can comprise the waterproof door lock being arranged on external door.
Described protecting on groove, can be formed with dead bolt hole, the dead bolt of waterproof door lock can be inserted in described dead bolt hole.
Described inner hinge can be the peg type inner hinge that is installed in box inside.
Described inside door can be connected with casing by rotating shaft, and described rotating shaft can be installed through the sidewall that protects groove.
Described case top can be rainhat.
Close-shaped upper flange can be formed on the top of described casing, and the bottom of described rainhat can be formed with the opening corresponding with described upper flange, and described upper flange can insert in the opening of described rainhat.
The surrounding of the opening of described rainhat can have the flange connector extending to the inside of rainhat.
The top of described rainhat can have to the part of the rear downside inclination of control cabinet.
Described rainhat also can have to the oblique forward position of the front lower inclination of control cabinet, to block external door from top.
At least one cable screwed pipe joint can be installed at the bottom of described case, and cable enters in control cabinet through described cable screwed pipe joint, when cable screwed pipe joint is tightened, and the inwall close contact of cable and cable screwed pipe joint.
On described external door, can be provided with transparent observation window, this transparent observation window is connected with the body seal of external door.
On the rear wall of described casing, apparatus mounting plate can be installed, the rear wall of apparatus mounting plate and casing is spaced a predetermined distance from.
On described inside door, operating equipment and display device can be installed.
Described inward flange and described upper flange can pass through self-drilling connection.
The main body of described control cabinet and external door can be formed by stainless steel or Q235A.
The outer surface of described control cabinet can adopt electrostatic dusting to process.
The inside of described control cabinet can be provided with earth stud.
Described inner hinge can be connected with casing by Water-proof screw.
On described inside door, Inner door lock can be installed.
In the inside of casing, the reinforcement doorframe identical with described doorframe can be installed.
Weld seam on control cabinet can adopt sequential welding, and butt welded seam putty shutoff, to prevent that water or the dust of control cabinet outside from infiltrating in control cabinet.
Control cabinet of the present utility model, its structural strength is good, and degree of protection is high.This control cabinet can be installed on indoor, also can be installed on outdoorly, can be widely used in the burn into metallic dusts such as chemical industry, smelting, salt fog, moist adverse circumstances such as environment, as the use of low-voltage distribution, control.
Accompanying drawing explanation
By the description of carrying out below in conjunction with accompanying drawing, above and other object of the present utility model and feature will become apparent, wherein:
Fig. 1 is the front view illustrating according to the preventing dust spray control cabinet of embodiment of the present utility model;
Fig. 2 is the cutaway view illustrating along the A-A line intercepting in Fig. 1;
Fig. 3 is the front view illustrating according to the external door of embodiment of the present utility model;
Fig. 4 is the sectional view that the external door shown in Fig. 3 is shown;
Fig. 5 is the vertical view that the rainhat being placed upside down is shown;
Fig. 6 is the cutaway view illustrating along B-B line intercepting in Fig. 5;
Fig. 7 is the front view illustrating according to the casing of the preventing dust spray control cabinet of embodiment of the present utility model;
Fig. 8 is the left side view with the casing at the bottom of case illustrating according to the preventing dust spray control cabinet of embodiment of the present utility model;
Fig. 9 is the vertical view illustrating according to the casing of the preventing dust spray control cabinet of embodiment of the present utility model;
Figure 10 is the front view illustrating according to the part of protecting groove in the preventing dust spray control cabinet shown in Fig. 1 of embodiment of the present utility model;
Figure 11 is the left side view that the part of protecting groove shown in Figure 10 is shown;
Figure 12 illustrates the C of the part of protecting groove shown in Figure 10 to view.
Embodiment
Below, describe with reference to the accompanying drawings embodiment of the present utility model in detail.
On the whole, according to the whole box structure of the preventing dust spray control cabinet of embodiment of the present utility model, be hermetically sealed form, its shell adopts Q235A quality steel plate or stainless steel manufacture substantially, therefore can realize the effect of preventing dust spray.PLC controller, touch-screen, ammeter, voltmeter, contactor, relay, circuit breaker, digital displaying meter, various secondary meter, shift knob and indicator light etc. can be installed in control cabinet inside, and are provided with earth stud, and have ground connection sign.
The detailed structure of this control cabinet is described below with reference to accompanying drawings in further detail.
Fig. 1 is the front view illustrating according to the preventing dust spray control cabinet of embodiment of the present utility model; Fig. 2 is the cutaway view illustrating along the A-A line intercepting in Fig. 1.
As depicted in figs. 1 and 2, according to the preventing dust spray control cabinet of an embodiment of the present utility model, mainly comprise at the bottom of casing 1, case top, case 3 and external door 2.At the bottom of casing 1, case top and case, 3 can form separately, also can pass through according to the attribute of material, and for example, one or more in flanging, welding, riveted joint, the construction technology such as bonding form as one.In shown in Fig. 1 and Fig. 2, will at the bottom of casing 1 and case, 3 form as one, and case top is formed separately, for example, according to the form of rainhat 11, form.Rainhat 11 covers the top of casing 1, so that the top of casing 1 is covered, and guarantees that dust or water can not enter in casing by the junction of rainhat 11 and casing 1.When at the bottom of casing 1 and case 3 while being integrally formed, also can will at the bottom of casing 1 and case, 3 be referred to as casing 1.For this reason, the size in the horizontal direction of rainhat 11 (comprising at least one in width and length) more preferably greater than or equal the size in the horizontal direction of casing 1.
A side at casing 1 is formed with opening 1-1(referring to Fig. 7), external door 2 is installed in this side of casing 1, to cover opening 1-1 by outer hinge 9.Outer hinge 9 is a kind of inner hinges that are installed in the inner side of casing 1.Preferably, outer hinge 9 is bolt-type inner hinges, and is connected with casing 1 by waterproof bolt.As shown in Figure 1 to Figure 3, outer hinge 9 is arranged in a territory, lateral areas of external door 2.
In order to prevent that dust or water from entering in casing 1 by the opening 1-1 of casing 1, external door 2 is by the opening 1-1 on sealing strip 12 seal cases 1.Preferably, sealing strip 2 is formed close-shaped by polyurethane foam sealing joint strip, and this is close-shaped corresponding with the shape of opening 1-1, to seal control cabinet.
Therefore, sealing strip 2 is arranged on the inner side of external door 2, with corresponding with the position of opening 1-1.
The opening 1-1 that can seal control cabinet in order to realize external door 2 smooth opening simultaneously, the periphery of opening 1-1 is formed with laterally outstanding side flange 1-2.When external door 2 is closed, sealing strip 2 compresses side flange 1-2, to seal described control cabinet.
In addition, as shown in Figure 1-2, control cabinet also comprises and protects groove 14 and inside door 10.Protect one end 14-1(of groove 14 referring to accompanying drawing 11) hang over side flange 1-2 above, the other end 14-3 that protects groove 14 extends to the inside of casing 1 and is bent to form interior door frame 7.Inside door 10 is hinged in the both sides up and down of interior door frame 7 by rotating shaft, so inside door 7 can be around rotating shaft Unscrew.Although be not shown specifically in accompanying drawing, those skilled in the art should know, and in order to realize normally Unscrew of inside door 10, between inside door 10 and interior door frame 7, should leave gap.One side of inside door 10 is by rotating shaft with to protect groove 14 hinged, and the opposite side of inside door 10 is provided with interior door lock 6.Such as the operating equipment of various action buttons, display device etc., can be arranged on inside door 10.Like this, when opening external door 2, can control control cabinet.
On the interior rear wall of casing 1, apparatus mounting plate 5 is installed.Apparatus mounting plate 5 keeps preset distance by supporting swivel nut 13 with the interior rear wall of casing 1, and to prevent from being arranged on, the equipment cooling of installing on apparatus mounting plate 5 is bad guarantees enough creepage distances simultaneously.The equipment such as power, control, protection can be arranged on apparatus mounting plate 5, when opening inside door 10, can see the control appliance that is arranged on apparatus mounting plate 5 and terminal etc.
As shown in Fig. 1-2 and Fig. 9, at the bottom of case, be formed with at least one nipple orifice 31 on 3, screwed pipe joint 4 is arranged in nipple orifice 31.Be connected to the cable of control cabinet through screwed pipe joint 4 turnover control cabinets.When cable screwed pipe joint 4 is tightened, the inwall close contact of cable and cable screwed pipe joint 4, can prevent that dust from entering the inside of control cabinet by screwed pipe joint 4 like this.
1-12 describes all parts of control cabinet and relevant details in further detail below with reference to accompanying drawings.
Fig. 3 is the front view illustrating according to the external door of embodiment of the present utility model; Fig. 4 is the sectional view that the external door shown in Fig. 3 is shown.
As shown in Figure 3, external door 2 comprises external door panel 21 and transparent windows 22.In the central authorities of external door panel 21, be formed with the opening of essentially rectangular, transparent windows 22 is installed on this opening part.Preferably, observation window 22 can be formed by toughened glass or polymethyl methacrylate, and adopt fluid sealant and external door panel 21 bonding, and guarantee bonding firmly and sealing reliable.Outer door lock 8 is arranged on the outside (or outer surface) of external door 21, and outer hinge 9 is connected with the inner side of external door 2.Outer door lock 8 and outer hinge 9 be the left side in external door 21 and right side (for Fig. 3) respectively, to realize locking and the rotation of external door 2.Preferably, outer hinge 9 capable of rotating 180 degs, thus external door is opened at utmost.Outer hinge 9 is arranged on the inside of casing 1, and its part is welded with the inner surface of external door 2, and another part is connected with casing 1 with Water-proof screw.
In addition, sealing strip 12 is also arranged on the inner side of external door 2, and relative with the position of protecting groove 14 on the side flange 1-2 being hooked on casing 1.Therefore, when external door 2 is closed, sealing strip 12 can with one end close contact that protects groove 14, thereby realize the sealing to the opening 1-1 of casing 1.Therefore, sealing strip can form corresponding with opening 1-1 close-shaped.
5-9 describes the syndeton of rainhat 11 and casing 1 in detail below with reference to accompanying drawings.
In order to realize anti-spray, the top of rainhat 11 tilts.Particularly, the top of rainhat 11 comprises two parts, has the part 11-1 that tilts to the rear downside of control cabinet and to the oblique forward position 11-2 of the front lower inclination of control cabinet.Although rainhat 11 has forward position 11-2 in the present embodiment, but forward position also can be removed, or, by the horizontal size of rainhat 11 manufacture be greater than casing 1 horizontal size also can, the top of rainhat 11 can tilt to the back lower place of casing 1 in this case, also can tilt to the front lower place of casing 1.As illustrated in fig. 1 and 2, the width dimensions of rainhat 11 is greater than the width dimensions of casing 1.Particularly, the forward position 11-2 of rainhat 11 is outstanding from casing 1, blocks external door 2, effectively to prevent that water from flowing between casing 1 and external door 2 from top.
As shown in Figure 5, the bottom of rainhat 11 is also formed with opening 11-5, for inserting the upper flange 1-3(of casing 11, will be described below).Surrounding at opening 11-5 is formed with the flange connector 11-3 extending to the inside of rainhat 11.By upper flange 1-3 and flange connector 11-3 are connected to each other, casing 1 and rainhat 11 can be linked together, and can guarantee that the connecting portion of rainhat 11 and casing 1 is not easy to enter dust and water.Preferably, adopt tapping screw through the through hole 11-4 on upper flange 11-3 and the through hole 1-4 on flange connector 1-3, rainhat 11 to be fastened on casing.
In order to strengthen water proof and dust proof effect, the gap between rainhat 11 and casing 1 can be processed, for example, smear fluid sealant, putty or weld etc.
As Figure 7-9, be formed with opening 1-1 on the roof of casing 1, the position of this opening is corresponding with the position of opening 11-1 on rainhat 11.Upper flange 1-3 is formed at the surrounding of opening 1-1 and to upper process, thereby can be inserted in the opening 11-1 of rainhat 11.
Below with reference to Figure 10-12 and accompanying drawing 1-2, the structure relevant to protecting groove 14 described.
As shown in Figure 10-12, protecting groove 14 is bending structures, can obtain by bending tabular component, and it mainly comprises two ends 14-1 and 14-3 and the sidewall 14-2 that is connected two ends.One end 14-1 by be bent to form for hook, thereby can be hooked on side flange 1-2.Other end 14-3 is towards the contrary direction bending of the overbending direction with described one end 14-1, when protecting groove 14, hung over side flange 1-2 when upper like this, the sidewall 14-2 and the other end that protect groove 14 can extend towards the inside of casing 1, are formed for installing thus the doorframe 7 of inside door 10 in the inside of casing 1.Figure 12 shows the upper lateral section of protecting groove 14, is formed with for the through hole 14-4 of rotating shaft is installed on horizontally extending sidewall 14-2.
Although for illustrating, protect on the sidewall of lower lateral section of groove 14 and be also formed with the corresponding through hole with through hole 14-4.
In addition, also can form strip hole or circular port protecting on vertical section of groove 14, the dead bolt hole of usining as interior door lock or outer door lock.
In addition,, in order to strengthen the intensity of interior door frame 7, also can the reinforcement doorframe identical with interior door frame 7 be installed in the inside of casing 1.
Because control cabinet is formed by steel plate, so the weld seam between each parts should adopt sequential welding, and after welding, uses putty shutoff, to prevent that water or the dust of control cabinet outside from infiltrating in control cabinet.
According to control cabinet of the present utility model, can install by wall-hung type, from front, operate, safeguard, easy for installation, and reach dustproof, anti-spray rank, guaranteed the safety of in-built device.
And, according to control cabinet of the present utility model, can resist the weather of drastic change and severe operational environment, safe, highly versatile.In order to realize the insulation protection of live part in control cabinet; with insulating material, live part is covered completely; insulating material adopts the material that can bear the mechanical stress that may run in use, and the insulating material at homemade copper bar, crimp type terminal place adopts material contracting with heat.
Therefore, normal temperature rise, insulating material aging and while normally working and the thermal expansion of copper aluminium and vibration that couple corrosion effect produces or change the ANOMALOUS VARIATIONS that is connected with that can not cause current-carrying part, the connection between current-carrying part can ensure enough and lasting contact.In addition, should guarantee that in control cabinet, the wire between two interface units does not have transition joint or pad.
In addition, the fixing dedicated insulated bracket that need to adopt of insulated conductor is fixed, and is connected to the wire of carrying out the electric elements on plate or door, adopts split conductor also to guarantee certain move place, thus guarantee not can be to wire any mechanical damage.The wire and the busbar that connect all adopt copper, exposed copper conductor all to adopt zinc-plated processing, and overlap heat-shrinkable T bush, and the connection of the non-welding of conductor, all will adopt conductive paste to smear.
The surface treatment of control cabinet (that is, at the bottom of casing, case and case top) adopts electrostatic dusting to process, and the Standard Colors of control cabinet is: RAL7035; The resistance of cabinet shell earth terminal must not surpass 0.1 Ω.Between case inner bolt and and casing between minimum electric clearance be 6mm, the minimum creep distance between live part and apparatus mounting plate is 12.5mm.
The beneficial effects of the utility model are: this high-protection level control cabinet has been realized well dustproof, anti-spray effect.Be widely used in the adverse circumstances such as environment of the burn into metallic dusts such as chemical industry, smelting, salt fog, humidity as the use of low-voltage distribution, control.
The utility model is not limited to above-described embodiment, in the situation that not departing from the utility model scope, can carry out various changes and modifications.
Claims (27)
1. a preventing dust spray control cabinet, is characterized in that, control cabinet comprises:
Main body, at the bottom of comprising case top, casing and case, a side of casing is formed with opening;
External door, is hinged on the described side of casing, in the inner side of external door, is provided with close-shaped sealing strip,
Wherein, in the around openings of casing, be formed with outstanding laterally close-shaped side flange, when external door is closed, described sealing strip presses described side flange, to seal described control cabinet.
2. preventing dust as claimed in claim 1 sprays control cabinet, it is characterized in that, the groove that protects extending to body interior is installed on described side flange, one end of protecting groove forms hook, to hang on described side flange and with side flange, combine closely, protect the other end of groove towards the opposite direction bending of hook, thereby form doorframe.
3. preventing dust spray control cabinet as claimed in claim 2, is characterized in that, described control cabinet also comprises the inside door of the inside that is arranged on casing, and this inside door is arranged on described doorframe.
4. preventing dust as claimed in claim 2 spray control cabinet, is characterized in that, described sealing strip is arranged on the inner side of described external door, and with protect groove close contact to realize sealing.
5. preventing dust spray control cabinet as claimed in claim 2, is characterized in that, described sealing strip is formed by polyurethane foam sealing joint strip.
6. preventing dust spray control cabinet as claimed in claim 1, is characterized in that, described external door is connected with casing by inner hinge.
7. preventing dust spray control cabinet as claimed in claim 2, is characterized in that, described preventing dust spray control cabinet also comprises the waterproof door lock being arranged on external door.
8. preventing dust spray control cabinet as claimed in claim 7, is characterized in that, described protecting on groove, be formed with dead bolt hole, the dead bolt of waterproof door lock can be inserted in described dead bolt hole.
9. preventing dust spray control cabinet as claimed in claim 6, is characterized in that, described inner hinge is the peg type inner hinge that is installed in box inside.
10. preventing dust spray control cabinet as claimed in claim 3, is characterized in that, described inside door is connected with casing by rotating shaft, and described rotating shaft is installed through the sidewall that protects groove.
11. preventing dust spray control cabinets as claimed in claim 1, is characterized in that, described case top is rainhat.
12. preventing dust spray control cabinets as claimed in claim 11, it is characterized in that, close-shaped upper flange is formed on the top of described casing, and the bottom of described rainhat is formed with the opening corresponding with described upper flange, and described upper flange inserts in the opening of described rainhat.
13. preventing dust spray control cabinets as claimed in claim 12, is characterized in that, the surrounding of the opening of described rainhat has the flange connector extending to the inside of rainhat.
14. preventing dust spray control cabinets as claimed in claim 11, is characterized in that, the top of described rainhat has to the part of the rear downside inclination of control cabinet.
15. preventing dust spray control cabinets as claimed in claim 14, is characterized in that, described rainhat also has to the oblique forward position of the front lower inclination of control cabinet, to block external door from top.
16. preventing dust spray control cabinets as claimed in claim 1, it is characterized in that, at least one cable screwed pipe joint is installed at the bottom of described case, cable enters in control cabinet through described cable screwed pipe joint, when cable screwed pipe joint is tightened, the inwall close contact of cable and cable screwed pipe joint.
17. preventing dust spray control cabinets as claimed in claim 1, is characterized in that, described external door comprises external door panel and the central transparent windows that is arranged on external door panel, and observation window and external door panel that this is transparent are tightly connected.
18. preventing dust spray control cabinets as claimed in claim 1, is characterized in that, on the rear wall of described casing, apparatus mounting plate is installed, the rear wall of apparatus mounting plate and casing is spaced a predetermined distance from.
19. preventing dust spray control cabinets as claimed in claim 3, is characterized in that, operating equipment and display device are installed on described inside door.
20. preventing dust spray control cabinets as claimed in claim 13, is characterized in that, described inward flange and described upper flange pass through self-drilling connection.
21. preventing dust spray control cabinets as claimed in claim 1, is characterized in that, the main body of described control cabinet and external door are formed by stainless steel or Q235A.
22. preventing dust spray control cabinets as claimed in claim 1, is characterized in that, the outer surface of described control cabinet adopts electrostatic dusting to process.
23. preventing dust spray control cabinets as claimed in claim 1, is characterized in that, the inside of described control cabinet is provided with earth stud.
24. preventing dust spray control cabinets as claimed in claim 6, is characterized in that, described inner hinge is connected with casing by Water-proof screw.
25. preventing dust spray control cabinets as claimed in claim 3, is characterized in that, on described inside door, Inner door lock are installed.
26. preventing dust spray control cabinets as claimed in claim 1, is characterized in that, the weld seam on control cabinet adopts sequential welding, and butt welded seam putty shutoff, to prevent that water or the dust of control cabinet outside from infiltrating in control cabinet.
27. preventing dust spray control cabinets as claimed in claim 2, is characterized in that, in the inside of casing, the reinforcement doorframe identical with described doorframe are installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320477803.7U CN203492301U (en) | 2013-08-06 | 2013-08-06 | Dust-proof and spraying-proof control box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320477803.7U CN203492301U (en) | 2013-08-06 | 2013-08-06 | Dust-proof and spraying-proof control box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203492301U true CN203492301U (en) | 2014-03-19 |
Family
ID=50263093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320477803.7U Expired - Lifetime CN203492301U (en) | 2013-08-06 | 2013-08-06 | Dust-proof and spraying-proof control box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203492301U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112117681A (en) * | 2020-08-31 | 2020-12-22 | 镇江茗驰电气有限公司 | Novel dampproofing low-voltage distribution box |
-
2013
- 2013-08-06 CN CN201320477803.7U patent/CN203492301U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112117681A (en) * | 2020-08-31 | 2020-12-22 | 镇江茗驰电气有限公司 | Novel dampproofing low-voltage distribution box |
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Granted publication date: 20140319 |
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