CN209571379U - Fuse unit and combined electrical apparatus cabinet - Google Patents
Fuse unit and combined electrical apparatus cabinet Download PDFInfo
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- CN209571379U CN209571379U CN201822142867.7U CN201822142867U CN209571379U CN 209571379 U CN209571379 U CN 209571379U CN 201822142867 U CN201822142867 U CN 201822142867U CN 209571379 U CN209571379 U CN 209571379U
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Abstract
The utility model provides a kind of fuse unit for installation into combined electrical apparatus cabinet, comprising: cylindrical body, it is made of insulating material and including inner segments, outer segments and the intermediate section between inner segments and outer segments, cabinet wall of the intermediate section for installation into combined electrical apparatus cabinet, when the intermediate section is installed to cabinet wall, the inside of combined electrical apparatus cabinet is arranged in the inner segments, and the outside of combined electrical apparatus cabinet is arranged in the outer segments；The inside of cylindrical body is arranged in fuse；And first electrode and second electrode, the first electrode and the second electrode are arranged at inner segments, wherein for first electrode than second electrode closer to intermediate section, the both ends of fuse are connected respectively to first electrode and second electrode；Wherein, creeping-increasing skirt portion is provided between first electrode and intermediate section axial position.The fuse unit has the insulation performance improved.The utility model further relates to a kind of combined electrical apparatus cabinet including the fuse unit.
Description
Technical field
The utility model relates to a kind of fuse units, and are related to a kind of combined electrical apparatus cabinet including it.
Background technique
It is provided with fuse unit in combined electrical apparatus cabinet, accommodates and the fuse of protection setting inside it, the two of the fuse
End is connected respectively to the first electrode and second electrode of fuse unit, to be connected to the outside of fuse unit.Fuse unit passes through combination electricity
The cabinet wall of device cabinet allows to the outside access fuse from combined electrical apparatus cabinet to extend to outside.
In general, filled with the sulfur hexafluoride (SF with insulation performance in combined electrical apparatus cabinet6) gas, realize good insulating properties
Matter.However, in no SF6Combined electrical apparatus in, due to dry air or SF6Substitution gas insulation performance it is lower, it is therefore, right
The insulation performance of fuse unit is put forward higher requirements.
Utility model content
In order to solve the problems in the existing technology, the purpose of this utility model is to provide a kind of fuse unit and one kind
Including its combined electrical apparatus cabinet, fuse unit insulation performance with higher.
The one side of the utility model provides a kind of fuse unit for installation into combined electrical apparatus cabinet comprising: tubular sheet
Body is made of insulating material and including inner segments, outer segments and the centre between inner segments and outer segments
Section, the intermediate section for installation into combined electrical apparatus cabinet cabinet wall, when the intermediate section is installed to cabinet wall, it is described in
The inside of combined electrical apparatus cabinet is arranged in portion's section, and the outside of combined electrical apparatus cabinet is arranged in the outer segments；Fuse, setting exist
The inside of cylindrical body；And first electrode and second electrode, the first electrode and the second electrode are arranged in internal portion
At section, wherein for first electrode than second electrode closer to intermediate section, the both ends of fuse are connected respectively to first electrode and second
Electrode；Wherein, creeping-increasing skirt portion is provided between first electrode and intermediate section axial position.
Creeping-increasing skirt portion is increased close to the first electrode of intermediate section and the intermediate section of the cabinet wall for installation into ground connection
Between creepage distance, to improve the insulation performance of fuse unit.
In one embodiment, creeping-increasing skirt portion includes being integrally formed with cylindrical body and having multiple bar shapeds of circumferentially extending prominent
The creeping-increasing skirt risen.
In one embodiment, first electrode of the article shape protrusion in the outside for extending to cylindrical body of first electrode is taken
The circumferential position of socket part point is nearby circumferentially extended less than 360 degree.
In one embodiment, the creeping-increasing skirt portion includes independent creeping-increasing skirt, circumferentially around being fixed on inner segments
External and its air-gap-free between the contact surface of inner segments.
In one embodiment, be provided in the intermediate section circumferentially around earth shield net, the earth shield net
For being connected to the ground connection of combined electrical apparatus cabinet.
In this embodiment, earth shield net has the function of shielding high electric field inside fuse unit, further improves molten
The insulation performance of silk cylinder.
In one embodiment, fuse unit further includes pressing plate, is used to for intermediate section being fixedly installed to cabinet wall, outer segments
Outer surface be provided with conductive coating layer, wherein conductive coating layer is electrically connected to cabinet wall by pressing plate.
In this embodiment, conductive coating layer further increases the insulation performance of fuse unit.
In one embodiment, the second electrode is coated by inner segments, in addition to prolonging from the side of inner segments or end face
Reach the second electrode overlap of the outside of cylindrical body.
Since second electrode is coated by the inner segments with insulating property (properties), further improve the exhausted of fuse unit
Edge performance.
In one embodiment, it is set at the coupling part at electrode overlap, between second electrode and inner segments
It is equipped with labyrinth groove structure.
In this embodiment, labyrinth groove structure is conducive to gas-tight seal inside fuse unit.
In one embodiment, the cylindrical body is cast molding together with the second electrode.
The cylindrical body is cast molding together with the second electrode, which configures the processing so that fuse unit
It is simple and convenient, and make fuse unit that there are good hermetic properties.
In one embodiment, the outer surface of the second electrode is grit blasted processing, this facilitates second electrode and tubular sheet
The good combination of body helps to provide the air-tightness of fuse unit.
In one embodiment, the second electrode is arranged at the closed tail portion of inner segments, so that second electrode
It is away as far as possible first electrode and outer segments.
In one embodiment, it is provided at the first electrode circumferentially around the high-tension shielding being fixed in cylindrical body
Net.
In this embodiment, high-tension shielding net has the function of uneven high electric field inside shielding and uniform fuse unit, into
One step improves the insulation performance of fuse unit.
In one embodiment, fuse unit further includes multiple equal splenium parts, is respectively used to from the external fixed of cylindrical body
At the first electrode overlap for being connect with external connection line of first electrode and second electrode for connecting with outside
At the second electrode overlap of wiring connection
In this embodiment, equal splenium part plays the role of pressure, further improves the insulation performance of fuse unit.
Fuse unit according to the present utility model improves the insulation performance of fuse unit by various structures or the combination of design.
The another aspect of the utility model provides a kind of combined electrical apparatus cabinet comprising: cabinet wall forms combined electrical apparatus cabinet
Cabinet body is closed, and is grounded；And foregoing fuse unit.
In one embodiment, non-sulfur hexafluoride gas is full of in the combined electrical apparatus cabinet.
Further, in one embodiment, any one of following gas is full of in the combined electrical apparatus cabinet or its is any
Combination: air, nitrogen, carbon dioxide gas, nitrous oxide gas, carbon tetrafluoride gas, inert gas.
Detailed description of the invention
It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by
Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also
To obtain other relevant attached drawings according to these attached drawings.
Through this specification, the same or similar component has the same or similar appended drawing reference.
Fig. 1 is the schematic side view for being equipped with the combined electrical apparatus cabinet of the fuse unit of embodiment according to the present utility model；
Fig. 2 is the perspective view of the fuse unit of embodiment according to the present utility model；
Fig. 3 is the cross-sectional view of the fuse unit of embodiment according to the present utility model.
Specific embodiment
In the following, the fuse unit and combined electrical apparatus cabinet of embodiment according to the present utility model is described in detail with reference to the drawings.To make
The objectives, technical solutions, and advantages of the embodiments of the present invention are clearer, below in conjunction in the utility model embodiment
Attached drawing, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that described embodiment is
The utility model a part of the embodiment, instead of all the embodiments.
Therefore, requirement is not intended to limit to the detailed description of the embodiments of the present invention provided in conjunction with attached drawing below
The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Based in the utility model
Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, all
Belong to the range of the utility model protection.
Terms used herein are intended to explain embodiment, and are not intended to be limited to and/or limit the utility model.It needs to manage
Solution, the orientation or positional relationships of the instructions such as term "inner", "outside" be based on the orientation or positional relationship shown in the drawings, or
The utility model product using when the orientation or positional relationship usually put or those skilled in the art usually understand
Orientation or positional relationship is merely for convenience of describing the present invention and simplifying the description, rather than indication or suggestion is signified sets
Standby or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to the utility model
Limitation.
Moreover, defining unless the context otherwise, otherwise singular includes plural form.Throughout the specification, term
" comprising ", " having ", etc. herein for specifying depositing for the feature, number, step, operation, component, assembly unit or combinations thereof
, but do not preclude the presence or addition of other one or more features, number, step, operation, component, assembly unit or combinations thereof.
In addition, even if the term including the ordinal numbers such as " first ", " second " can be used for describing various parts, but these portions
Part is not limited by these terms, and these terms are only used to distinguish an element and other elements.For example, not departing from
In the case where the scope of the utility model, the first component can be referred to as second component, and similarly, and second component can be by
The referred to as first component.
Fig. 1 is the side perspective for being equipped with the combined electrical apparatus cabinet of fuse unit 100 of embodiment according to the present utility model,
Fig. 2 is the perspective view of the fuse unit 100 of embodiment according to the present utility model, and Fig. 3 is embodiment according to the present utility model
The cross-sectional view of fuse unit 100.
As shown in Figure 1, fuse unit 100 is installed on combined electrical apparatus cabinet, and pass through the cabinet wall 200 of combined electrical apparatus cabinet.Cabinet wall
200 around the closing cabinet body for forming combined electrical apparatus cabinet.For accommodating and protecting fuse (not shown), fuse passes through fuse unit 100
The first electrode 130 and second electrode 140 of fuse unit 100 be connected to outside fuse unit 100 with be arranged in combined electrical apparatus cabinet
Conductive connecting 300 connect, forming circuit.It is molten in fuse unit 100 when circuit malfunctions, such as when generation short circuit
Silk fuses so that circuit loop disconnects.
In this example, such as dry air, nitrogen, carbon dioxide gas, nitrous oxide are full of in combined electrical apparatus cabinet
The gas of the non-sulfur hexafluoride such as gas, carbon tetrafluoride gas, inert gas or the mixed gas of these gases.But the utility model
Without being limited thereto, combined electrical apparatus cabinet according to the present utility model can also fill the gas of sulfur hexafluoride gas or other non-sulfur hexafluorides
Body.It preferably, is the environmentally friendly gas of non-sulfur hexafluoride gas.Although sulfur hexafluoride gas has good insulation performance,
It not environmentally, it is therefore preferred that using substitutes gas.Since the insulation performance of substitution gas is poor, in such case
Under, it is particularly advantageous using the fuse unit 100 with the insulating properties improved according to the present utility model.
As described in Fig. 2-3, fuse unit 100 includes fuse, cylindrical body 120, first electrode 130 and second electrode 140.
Cylindrical body 120 has inner segments 121, outer segments 122 and internally positioned section 121 and outer segments
Intermediate section 123 between 122.Intermediate section 123 is for installation into cabinet wall 200, when intermediate section 123 is installed to cabinet wall 200
When, the inside of combined electrical apparatus cabinet is arranged in inner segments 121, and the outside of combined electrical apparatus cabinet is arranged in outer segments 122.Originally showing
In example, cylindrical body 120 is the cylindrical member of another end opening closed at one end, and also has the fuse for closing the opening
Lid 124.In this example, cylindrical body 120 is made of epoxide resin material, can also be made of other insulating materials.
First electrode 130 (in this example, can be referred to as " preceding electrode ") and second electrode 140 (in this example, may be used
To be referred to as " tail portion electrode ") it is arranged at inner segments 121, wherein first electrode 130 is than second electrode 140 in
Between section 123.The inside of cylindrical body 120 is arranged in fuse, and cylindrical body 120 is for accommodating and protecting fuse.The one of fuse
End is connected to first electrode 130, and the other end of fuse is connected to second electrode 140, so that fuse be made to pass through 130 He of first electrode
Second electrode 140 is electrically connected to the outside of cylindrical body 120.First electrode 130 and second electrode 140 by such as metal conduction
Material is made.
Intermediate section 122 includes flange section, which axially determines fuse unit 100 from the outside of cabinet wall 200
Combined electrical apparatus cabinet is arrived in position.Specifically, cabinet wall 200 of the end face towards inner segments 121 of flange section against combined electrical apparatus cabinet
Outer surface.It is then possible to flange section is fixed to cabinet wall 200 using pressing plate 190, so that fuse unit 100 is fixed to group
Electric Appliance Cabinet is closed, sealing ring wherein can be set between flange section and cabinet wall 200.
The cabinet wall 200 of combined electrical apparatus cabinet is earthing potential.The outer surface of outer segments 122 can have conductive coating layer
1221, which is for example formed by spray zinc or other conductive powders.Pressing plate 190 can be with conductive coating layer
1221 contacts, to form equipotential connection between conductive coating layer 1221 and cabinet wall 200.
The cabinet wall 200 of first electrode 130 in normal use with high potential and the combined electrical apparatus with earthing potential
Between have high voltage differential.In order to increase between the first electrode 130 of high potential and the cabinet wall 200 of earthing potential climb electricity away from
From the setting creeping-increasing skirt portion 150 between first electrode 130 and flange section.Therefore, the insulation performance of fuse unit 100 obtains
It improves.Creeping-increasing skirt portion 150 according to the present utility model is not limited to specific form.
In the present embodiment, creeping-increasing skirt portion 150 includes two creeping-increasing skirts 151,152.One creeping-increasing skirt 151 is close to the first electricity
Pole 130 is arranged, and is integrally formed with cylindrical body 120, and has multiple article shape protrusions of circumferentially extending.In this example,
Article shape protrusion only partially surrounds cylindrical body 120, i.e. less than 360 °, setting extends outwardly in first electrode 130 for circumferentially extending
To near the circumferential position of the first electrode overlap of the outside of cylindrical body 120.Compared to entirely around cylindrical body 120
Article shape protrusion, such article shape protrusion can have bigger rising height, to further increase first electrode 130 and cabinet
Creepage distance between wall 200.Another creeping-increasing skirt 152 is independently of the component of cylindrical body 120, circumferentially around fixation
In the outside of inner segments 121.The creeping-increasing skirt 152 can for umbrella and have rounded corner, and with the contact of inner segments 121
Air-gap-free between surface, to guarantee that effect is climbed in its increasing.In order to make between the creeping-increasing skirt 152 and the contact surface of inner segments 121
Air-gap-free is designed to the spue line of no mold at the contact surface of the inner segments 121.In addition, the independent creeping-increasing skirt 152
It can be elastomer, to improve the contact effect of the creeping-increasing skirt 152 with cylindrical body 120.The independent creeping-increasing skirt 152 and tubular
Sealing resin is also provided between the contact surface of ontology 120.Creeping-increasing skirt portion 150 according to the present utility model is not limited to
This, can only have with the integrally formed creeping-increasing skirt 151 of cylindrical body 120, or can only have independent creeping-increasing skirt
152, or can have more or fewer creeping-increasing skirts 151,152.
In the present embodiment, first electrode 130 is the column with internal thread hole 131 comprising from cylindrical body 120
Internal stretch to external first electrode overlap, with the conductive connecting 300 outside connecting.In this example, first
Electrode overlap can be used as first electrode 130 itself.One end that stud can pass through external connection line 300 is screwed into internal screw thread
Conductive connecting 300 is connected to first electrode 130 by hole 131.As described above, first electrode 130 is also connected to the one of fuse
End, so that one end of fuse be connect with external connection line 300.Second electrode 140 can be set in the inside of cylindrical body 120
It at the tail portion of section 121, or is tail portion electrode, so that second electrode 140 is away as far as possible outer segments 122.Second electrode
140 are substantially coated by the inner segments 121 of cylindrical body 120, in addition to extending to cylindrical body from the side of inner segments 121
The second electrode overlap 141 of 120 outside, the second electrode overlap 141 are used to connect external conductive connecting
300, such as pass through stud.As described above, second electrode 140 is also connected to the other end of fuse, thus by the other end of fuse
It is connect with external connection line 300.It can be made and making cylindrical body 120 be cast molding together with second electrode 140
Second electrode 140 is substantially coated by the inner segments 121 of cylindrical body 120.
Since the inner segments 121 that second electrode 140 is substantially insulated coat, the insulation performance of fuse unit 100
It gets a promotion.In order to guarantee the sealing between second electrode 140 and cylindrical body 120, the outer surface of second electrode 140 can be by
Blasting treatment, and the coupling part at second electrode overlap 141, between second electrode 140 and inner segments 121
Labyrinth groove structure 142 has can be set in place (referring to Fig. 3, which is shown in Figure 3 for wavy).
In other examples, second electrode overlap 141 can also extend to cylindrical body from the end of tail portion
120 outside.
In addition, in the present embodiment, fuse unit 100 is additionally provided with earth shield net 160 and high-tension shielding net 170, with into
The insulation performance of one step raising fuse unit 100.
Be provided in intermediate section 123 circumferentially around earth shield net 160, by laterally penetrating intermediate section
123 grounding screw is connected to the ground connection of combined electrical apparatus cabinet to be grounded.Radial direction has can be set in the side of intermediate section 123
The threaded hole 1231 of earth shield net 160 is extended to, the threaded hole 1231 and grounding screw cooperate, so that earth shield net 160
Ground connection.The earth shield net 160 shields the high electric field inside fuse unit 100, plays the role of pressure, avoids 123 He of intermediate section
High electric field between cabinet wall 200 in earthing potential.
It is provided at first electrode 130 circumferentially around the high-tension shielding net 170 being fixed in cylindrical body 120, with
The electrical connection of one electrode 130.There are many conductors in irregular shape, the high pressure screen at the coupling part of first electrode 130 and fuse
Non-uniform electric field shielding of the net 170 for generating these irregular conductors is covered in the inside of high-tension shielding net 170, thus
The electric field strength of the outside of high-tension shielding net 170 can be remarkably decreased.
Earth shield net 160 and high-tension shielding net 170 are reticular component made of conductor.And it is located at axial end portion
Edge can carry out crimping processing, and ensure that the burr after crimping is not passed through the inside of gauze screen.Earth shield net 160
It can be made of materials such as stainless steel or copper.High-tension shielding net 170 can be made of materials such as stainless steel, copper or aluminium.
As shown in Figure 1, fuse unit 100 further includes multiple equal splenium parts 180.Conductive connecting 300 is connected to fuse unit 100
First electrode 130 and second electrode 140.Multiple equal splenium parts 180 are fixed on the first electricity from the outside of cylindrical body 120 respectively
At the first electrode overlap of pole 130 and at the second electrode overlap 141 of second electrode 140, for shielding above-mentioned company
Socket part respectively non-uniform electric field.Equal splenium part 180 can be metal material or the semiconductor material with metallic equivalent.At this
In example, the outer surface of equal splenium part 180 is substantially elliposoidal.Equal splenium part 180 further improves the insulation of fuse unit 100
Performance.
The scope of the utility model is not limited by above described embodiment, but by appended claims
And its equivalent limits.
Claims (16)
1. a kind of fuse unit (100), for installation into combined electrical apparatus cabinet characterized by comprising
Cylindrical body (120) is made of insulating material and including inner segments (121), outer segments (122) and in inside
Intermediate section (123) between section (121) and outer segments (122), the intermediate section (123) is for installation into combination electricity
The ground connection cabinet wall (200) of device cabinet, when the intermediate section (123) is installed to cabinet wall (200), the inner segments (121) are set
It sets in the inside of combined electrical apparatus cabinet, the outside of combined electrical apparatus cabinet is arranged in the outer segments (122)；
Fuse is arranged in the inside of cylindrical body (120)；And
Including first electrode (130) and second electrode (140), the first electrode (130) and the second electrode (140) setting
At portion's section (121), wherein first electrode (130) is than second electrode (140) closer to intermediate section (123), the both ends of fuse
It is connected respectively to first electrode (130) and second electrode (140)；
Wherein, creeping-increasing skirt portion (150) are provided between first electrode (130) and the axial position of intermediate section (123).
2. fuse unit (100) according to claim 1, which is characterized in that
Creeping-increasing skirt portion (150) includes the increasing for being integrally formed and having multiple article shape protrusions of circumferentially extending with cylindrical body (120)
Climb skirt (151).
3. fuse unit (100) according to claim 2, which is characterized in that
First electrode overlap of the article shape protrusion in the outside for extending to cylindrical body (120) of first electrode (130)
Circumferential position nearby circumferentially extend less than 360 degree.
4. fuse unit (100) according to claim 1, which is characterized in that
The creeping-increasing skirt portion (150) includes independent creeping-increasing skirt (152), and the creeping-increasing skirt (152) is circumferentially around being fixed on inside
The outside of section (121) and air-gap-free between the creeping-increasing skirt (152) and the contact surface of inner segments (121).
5. fuse unit (100) according to claim 1, which is characterized in that
Be provided in the intermediate section (123) circumferentially around earth shield net (160), the earth shield net (160) uses
In the ground connection for being connected to combined electrical apparatus cabinet.
6. fuse unit (100) according to claim 1, which is characterized in that further include:
Pressing plate (190) is used to intermediate section (123) being fixedly installed to cabinet wall (200),
The outer surface of the outer segments is provided with conductive coating layer (1221), wherein pressing plate (190) is by conductive coating layer
(1221) cabinet wall (200) are electrically connected to.
7. fuse unit (100) according to claim 1, which is characterized in that
The second electrode (140) is coated by inner segments (121), in addition to extending from the side of inner segments (121) or end face
To the second electrode overlap (141) of the outside of cylindrical body (120).
8. fuse unit (100) according to claim 7, which is characterized in that
At coupling part at second electrode overlap (141), between second electrode (140) and inner segments (121)
It is provided with labyrinth groove structure (142).
9. fuse unit (100) according to claim 7, which is characterized in that
The cylindrical body (120) and the second electrode (140) are cast molding together.
10. fuse unit (100) according to claim 7, which is characterized in that
The outer surface of the second electrode (140) is grit blasted processing.
11. fuse unit (100) according to claim 1, which is characterized in that
The second electrode (140) is arranged at the closed tail portion of inner segments (121).
12. fuse unit (100) according to claim 1, which is characterized in that
It is provided with and is electrically connected with first electrode (130) and circumferentially around being fixed on tubular sheet at the first electrode (130)
High-tension shielding net (170) in body (120).
13. fuse unit (100) according to claim 1, which is characterized in that further include:
Multiple equal splenium parts (180) are respectively used to be fixed on the use of first electrode (130) from the outside of cylindrical body (120)
At the first electrode overlap being connect with external connection line (300) and second electrode (140) be used for and external connection line
(300) at the second electrode overlap (141) connected.
14. a kind of combined electrical apparatus cabinet characterized by comprising
Cabinet wall (200), forms the closing cabinet body of combined electrical apparatus cabinet, and is grounded；And
Fuse unit (100) according to claim 1 to 13.
15. combined electrical apparatus cabinet according to claim 14, which is characterized in that
Non- sulfur hexafluoride gas is full of in the combined electrical apparatus cabinet.
16. combined electrical apparatus cabinet according to claim 15, which is characterized in that
Full of any one of following gas in the combined electrical apparatus cabinet: air, nitrogen, carbon dioxide gas, nitrous oxide
Gas, carbon tetrafluoride gas, inert gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822142867.7U CN209571379U (en) | 2018-12-20 | 2018-12-20 | Fuse unit and combined electrical apparatus cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822142867.7U CN209571379U (en) | 2018-12-20 | 2018-12-20 | Fuse unit and combined electrical apparatus cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209571379U true CN209571379U (en) | 2019-11-01 |
Family
ID=68330469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822142867.7U Active CN209571379U (en) | 2018-12-20 | 2018-12-20 | Fuse unit and combined electrical apparatus cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209571379U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112295376A (en) * | 2020-11-03 | 2021-02-02 | 广东电网有限责任公司 | Fuse dehumidification system |
-
2018
- 2018-12-20 CN CN201822142867.7U patent/CN209571379U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112295376A (en) * | 2020-11-03 | 2021-02-02 | 广东电网有限责任公司 | Fuse dehumidification system |
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