CN202362331U - Fixing frame and electrical device comprising same - Google Patents
Fixing frame and electrical device comprising same Download PDFInfo
- Publication number
- CN202362331U CN202362331U CN2011204514754U CN201120451475U CN202362331U CN 202362331 U CN202362331 U CN 202362331U CN 2011204514754 U CN2011204514754 U CN 2011204514754U CN 201120451475 U CN201120451475 U CN 201120451475U CN 202362331 U CN202362331 U CN 202362331U
- Authority
- CN
- China
- Prior art keywords
- electrical equipment
- fixed frame
- water conservancy
- conservancy diversion
- parts
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Casings For Electric Apparatus (AREA)
Abstract
The utility model discloses a fixing frame and an electrical device comprising the same, and particularly relates to an electric quantity measuring device. The electrical device comprises a shell and an electrical component, the fixing frame is provided with a cavity, and the electrical component is held and positioned in the cavity. By the aid of the fixing frame and the electrical device, and the space needed for arranging a mutual inductor and a guide strip component can be reduced, so that the electric quantity measuring device is miniaturized.
Description
Technical field
The electrical equipment that the utility model relates to a kind of fixed frame and comprises this fixed frame, more particularly, the utility model relates to a kind of electrical measurement equipment and the fixed frame that is used for this electrical measurement equipment.
Background technology
In resident, commercial facility or industrial electric system, generally include electrical measurement equipment, be commonly referred to electric energy meter, be used to measure power consumption and/or other electrical quantity.At present, this electrical measurement equipment comprises induction type, electronic type and electromechanical according to principle and structure branch.
Electronic type electrical measurement equipment is through mutual inductor current signal to be become the small-signal that can be used for measuring, and through metering circuit this signal is measured, and calculates, and finally draws required parameter.Especially for the three-phase electricity measurement equipment, select for use current transformer based on magnetic material and copper coiling to become usually and send device as electric weight, this relate to have low-power consumption, advantages such as high isolation, high precision, technology maturation.But big, high deadweight that its shortcoming is a volume, and for guide rail was installed series products, the product miniaturization was a development trend, can save the integral installation cost for the client.But because guide rail is installed the special profile of series products, it is inner and keep the little product size unusual difficulty that just seems that current transformer is put into the guide rail series products.
In the electrical measurement equipment that uses at present, mutual inductor mainly contains two kinds of mounting meanss, a kind of mounting means for through the circuit board water conservancy diversion with fixing, that is, mutual inductor and water conservancy diversion row are fixed on the circuit board through welding etc., and water conservancy diversion carries out through circuit board.But the problem of this structure is to cause the welding difficulty too soon as water conservancy diversion row's copper bar heat radiation, and utilizes the circuit board water conservancy diversion can limit the handling capacity of electric current, thereby has limited the range of application of whole electrical measurement equipment.
Second kind of mounting means is provided with and water conservancy diversion row is independent for only mutual inductor being fixed on the circuit board.And the problem that this layout is brought is because water conservancy diversion row is provided with separately; Must increase and arrange the required space of water conservancy diversion row; And derive line owing on water conservancy diversion row, also need connect voltage usually, therefore, cause difficult wiring and confusion; Finally cause to reduce the size of electrical measurement equipment, be unfavorable for the trend toward miniaturization of equipment.
In addition, the problems referred to above do not exist only in the electrical measurement equipment, but also are present in other electrical equipment.
The utility model content
In view of above-mentioned the problems of the prior art, the utility model has been proposed.Therefore; The purpose of the utility model is to provide a kind of electrical equipment of compactness; Electrical equipment through the utility model; Can simplify wiring as the mutual inductor of electric component and water conservancy diversion row's fixing and standard device interior, and and then help the miniaturization of equipment, to satisfy guide rail the requirement of series products is installed.
An aspect according to the utility model provides a kind of fixed frame that is used for electrical equipment, and this electrical equipment comprises housing and electric component, and said fixed frame is provided with the chamber that holds therein and locate said electric component.
Preferably, the housing of said fixed frame and said electrical equipment is integrally formed and as the part of said housing.
More preferably, said electrical equipment also comprises the water conservancy diversion row parts that are associated with said electric component, and said water conservancy diversion row parts hold equally and are positioned in the said chamber.
Through fixed frame according to the utility model, can overcome the problems of the prior art, reduce to arrange electric component and the required space size of water conservancy diversion row parts, thus, realize the miniaturization of electrical equipment.
According to the utility model on the other hand, a kind of electrical equipment is provided, this electrical equipment comprises above-mentioned according to the fixed frame described in the aspect of the utility model.The housing of said fixed frame and said electrical equipment is integrally formed and as the part of said housing.
One side again according to the utility model provides a kind of electrical equipment, and this electrical equipment comprises above-mentioned according to the fixed frame described in the aspect of the utility model.Preferably, said electrical equipment also comprises the water conservancy diversion row parts that are associated with said electric component, and said water conservancy diversion row parts hold equally and are positioned in the said chamber.
Preferably, the input and output end that the said water conservancy diversion row parts in the said electrical equipment comprise the U-shaped water diversion part and extend out from U-shaped water diversion part two ends respectively, and said input and output end is rolled over to mutually same lateral deviation.
Through making the input and output end of water conservancy diversion row parts roll over to a lateral deviation; Make that water conservancy diversion row parts are asymmetric; Compare with the U-shaped water conservancy diversion row parts of symmetry in the prior art; Can reduce water conservancy diversion row parts occupation space, make that the connection of water conservancy diversion row parts is more flexible, help the miniaturization of whole electrical measurement equipment thus.
Preferably, be formed with the hole that is used to be electrically connected the voltage extension line in said input end and output end.
Be arranged on the water conservancy diversion row parts through the hole that will connect the voltage extension line; Can avoid being welded on the circuit board voltage extension line or on the connection terminal; Can utilize simple screw to realize the connection of voltage extension line, thus, simplify the connection result of voltage extension line.
Preferably; Said input and output end forms from the two ends bending of said water diversion part respectively; Between the two ends of said input end and output end and said water diversion part, form kink respectively thus; Wherein at least one kink leans with the teat that is arranged in the said chamber, to locate said water conservancy diversion row parts.
Through the kink that in water conservancy diversion row parts, is formed for locating, can simplify the structure of location water conservancy diversion row parts, and then simplify the structure of entire equipment.
Preferably, also comprise lid, said lid is buckled on the said fixed frame, to arrange parts and said electric component with the said water conservancy diversion of fixed frame co.Advantageously, said lid is provided with thread jamming part, is used for fixing the voltage extension line that is connected with said water conservancy diversion row parts.
Through thread jamming part is set, fixed voltage extension line more easily, it is at random to prevent to connect up.
As an embodiment, said electrical equipment comprises three said electric components, and said fixed frame comprises three chambers that hold respectively and locate said electric component, and said three chambers are adjacent one another are and spaced apart by partition wall.
Alternative is, said fixed frame comprises and hold part, said electric component is held in wherein being used for.Preferably, said electric component can be a mutual inductor.Thus, can omit lid, further simplify the structure of product.Further, said thread jamming part can be arranged on the said fixed frame, is used for fixing the voltage extension line that is connected with said water conservancy diversion row parts.
As one preferred embodiment, said electrical equipment is an electrical measurement equipment, and said electric component is a mutual inductor.More preferably; Said electrical equipment is a three phase electrical equipment; It comprises three mutual inductors as said electric component, and said fixed frame comprises three chambers that hold respectively and locate said mutual inductor, and said three chambers are adjacent one another are and spaced apart by partition wall.
Utilize the utility model, a kind of electrical equipment of compactness can be provided, this electrical equipment for example is an electrical measurement equipment, and the requirement that this electrical measurement equipment can satisfy input three-phase voltage electric current realizes compact, clean and tidy product builtin voltage/electric current wire structures.This electrical measurement equipment can advantageously adopt guide rail to install, and is applied in dwelling house, market, the building power distribution cabinet.
Description of drawings
The others of the utility model, feature and advantage will be from reference to the accompanying drawings to understanding the detailed description of the preferred embodiment, in the accompanying drawing better:
Fig. 1 illustrates according to the water conservancy diversion row of the utility model and the structure of mutual inductor, and wherein Figure 1A is water conservancy diversion row's a skeleton view, and Figure 1B illustrates the structure after water conservancy diversion row installs with mutual inductor;
Fig. 2 illustrates mutual inductor and water conservancy diversion row are installed in the structure in the fixed frame;
Fig. 3 is the view that is similar to Fig. 2, show three mutual inductors are installed in fixed frame, and the voltage extension line is connected on the water conservancy diversion row; And
Fig. 4 is illustrated in lid is installed to the view behind the fixed frame.
Embodiment
1-4 describes the preferred implementation according to the utility model in detail with reference to the accompanying drawings.
Although below in the specific descriptions of the utility model preferred implementation and in the accompanying drawings; The utility model is applied on the three phase electrical equipment; But; The utility model should not be limited to this, goes up three phase electrical equipment but can be applied to industry, can be applied to two phase electrical measurement equipment of normal domestic use too.In addition, the utility model mainly is the wiring system to electrical measurement equipment, and other part of electrical measurement equipment; Like metering circuit part etc., be not to be the emphasis of the utility model, can adopt any suitable scheme in this area; Therefore, repeat no more at this.
With reference to Fig. 1, wherein Figure 1A illustrates water conservancy diversion row parts 1, and Figure 1B illustrates water conservancy diversion row parts and is assembled into mutual inductor 2.Shown in Figure 1A, water conservancy diversion row parts 1 constitute the passage that electric current flows through, and by conducting metal, bending forms like copper bar, comprise U-shaped water diversion part 11 roughly and the end 12 and 13 that extends out from U-shaped water diversion part two ends respectively.The U-shaped water diversion part passes the center of mutual inductor 2 and stretches out from the both sides of mutual inductor 2, is used for introducing from the electric current of connection terminal (back describe) and through mutual inductor 2.Two ends 12 and 13 comprise introduces the input terminal 12 of mutual inductor 2 and what electric current was drawn out to load is output terminal 13 with electric current; Input terminal 12 bends twice and forms from the right angle, end of U-shaped water diversion part 11, and input terminal 12 is in the plane at U-shaped place thus.Wherein, through the right angle bending first time, form kink thus, this kink forms stop wall 15 in the end of U-shaped water diversion part 11, is used for cooperating the described fixed frame in back, confirms the position of water conservancy diversion row parts 1.Output terminal 13 from another right angles, end bending of U-shaped water diversion part 11 once and is in the plane identical with input end 12.The part of this bending is also referred to as kink.
Shown in Figure 1A and 1B, input terminal 12 is not straight with output terminal 13, but input terminal 12 and output terminal 13 make input terminal 12 amesiality with output terminal 13 all towards side coplane bending, are the right side among Fig. 1.
In addition, also form on one in input terminal 12 and output terminal 13 porosely 14, be used for for example being electrically connected voltage extension line (referring to Fig. 3) through screw.
With reference to Fig. 2 and 3, Fig. 2 shows the fixed frame 3 that is used for fixing mutual inductor 2 and water conservancy diversion row parts 1.This fixed frame 3 can be integrally formed with an ingredient of the housing (not shown) of electrical measurement equipment, can be independent framework perhaps, and in assembling process through bonding, be threaded, mode such as welding, clamping is fixed on the housing.For clarity; Mutual inductor and water conservancy diversion row that one phase only is shown among Fig. 2 are contained in the fixed frame; And Fig. 3 shows the situation of three phase electrical equipment; Wherein, three mutual inductors 2 after the assembling and water conservancy diversion row parts 1 are received within respectively in three chambers of fixed frame 3, and voltage extension line 5 also is connected with water conservancy diversion row parts 1 respectively.
Shown in Fig. 2 and 3, fixed frame 3 is usually by plastic or other material one casting.In fixed frame 3, be formed with a plurality of vertical partition walls 31 and horizontal subdivision wall 32.These partition walls surround three chambers 33 that hold respectively and locate mutual inductor.And downside at vertical partition wall 31; Also be formed with a plurality of corresponding short partition walls 34; These short partition walls 34 separate each other, and between two adjacent short partition walls 34, define the input terminal 12 and the passage 35 of exporting terminal 13 of holding water conservancy diversion row parts 1 thus.And as shown in Figure 3, the connection terminal (not shown) of electrical measurement equipment also is contained in this passage, thus, through screw 36, can outside line fixed and be electrically connected with the output end with the input of connection terminal and water conservancy diversion row parts is terminal.
With reference to Fig. 2, can find out in chamber 33, also to be provided with teat 37 that this teat 37 is used for arranging the stop wall 15 that is provided with on the parts 1 with water conservancy diversion and matches once more, thus, be used to prevent that water conservancy diversion row parts 1 from rocking on the above-below direction in the drawings.
In order to limit the position of mutual inductor 2, as shown in Figure 4, also be provided with lid 4.Be similar to fixed frame 3; Lid 4 also can be to form with another ingredient of the housing of electrical measurement equipment is whole, so that when assembling electrical measurement housing, promptly; When two ingredients with housing fitted together, lid 4 can be buckled on the said fixing framework 3.Perhaps, lid 4 also can be the parts that form separately, and utilize buckle, mode such as be threaded is assembled into separately on the fixed frame 3.
As shown in Figure 4, lid 4 is formed with corresponding chamber, so that lid 4 is being buckled in 3 last times of fixed frame, the chamber of lid 4 is corresponding with the chamber 33 of fixed frame 3, thereby constitutes the space that can hold whole mutual inductor.The chamber of lid 4 can be the part opening, exposes mutual inductor 2 with part, is beneficial to mutual inductor heat radiation etc.
The size of lid 4 is less than the size of fixed frame 3, and thus, lid 4 does not cover the passage 35 that holds connection terminal in the fixed frame 3.Edge at lid 4 contiguous connection terminals; Be formed with some openings or slit 42; And be formed with a plurality of outstanding thread jamming parts 41 in this edge also spaced apartly; The voltage extension line 5 that is connected to the hole 14 of water conservancy diversion row parts 1 can pass from these openings or slit, and is stuck in these portions 41 of bursting at the seams, and prevents that thus the voltage extension line is at random.
In addition, although not shown in the drawings, can also be formed with opening at the back side of fixed frame 3, so that fixed printed circuit board.
Through fixed frame 3 is set; Can mutual inductor 2 and water conservancy diversion row parts 1 be fixed on the corresponding position; Reduce mutual inductor 2 and water conservancy diversion row parts 1 occupation space; Compare with prior art constructions, even under the situation of using high input current transformer, also can on width, save the space of 30mm at least.
In addition, terminal terminal amesiality through the input of water conservancy diversion being arranged parts 1 with output, can further reduce to arrange the space that water conservancy diversion row parts 1 are required.
In addition, fix mutual inductor 2 and water conservancy diversion row parts 1, can avoid interfering between each parts of wiring system, make that the installation of each parts is more firm, thereby improved the reliability of each parts through utilizing fixed frame 3.
In addition, the voltage extension line is connected on the water conservancy diversion row parts 1, can saves the step that is welded to connect in the prior art, simplify the connected mode of voltage extension line through utilizing screw.
In addition,, can manage better and fix various lead-in wires, improve reliability of products through thread jamming part is set.
In addition,, opening comes fitting printed circuit board on fixed frame through being set, and can be so that wiring system can be mutually integrated with printed circuit board (PCB) well.
Although illustrate and described the utility model with reference to preferred implementation above,, the utility model is not limited thereto, but can carry out various modifications or alternative therein.
For example, although in the superincumbent description, in water conservancy diversion row parts 1, input end 12 forms through twice bending from the U-shaped water diversion part, and output terminal 13 forms through once bending,, as the case may be, input terminal 12 can be exchanged with output end 13.In addition, although in the accompanying drawings, the terminal deflection of the input and output right side of water conservancy diversion row parts 1,, obviously, they equally also can be partial to the left side.
In the superincumbent description; Be provided with lid 4 and be buckled on the fixed frame 3, but obviously lid 4 is not to be necessary, substitutes lid 4 but on apparatus casing, can form other structure; Perhaps can corresponding card holding structure be set on fixed frame 3 and locate mutual inductor, and save lid 4.
In addition, in the superincumbent description, be arranged on the lid 4 though be used for fixing the thread jamming part 41 of voltage extension line, obviously thread jamming part 41 also can be arranged on the fixed frame 3, perhaps can be arranged on other part of apparatus casing.
Therefore, the utility model is not limited to above-described embodiment, but should contain all modification and improved form that those skilled in the art can contemplate, and the scope of the utility model only limits in appended claim.
Claims (25)
1. fixed frame (3) that is used for electrical equipment, this electrical equipment comprises housing and electric component, it is characterized in that, said fixed frame is provided with the chamber (33) that holds therein and locate said electric component.
2. fixed frame as claimed in claim 1 (3) is characterized in that, the housing of said fixed frame and said electrical equipment is integrally formed and as the part of said housing.
3. according to claim 1 or claim 2 fixed frame (3) is characterized in that, said electrical equipment also comprises the water conservancy diversion row parts (1) that are associated with said electric component, and said water conservancy diversion row's parts (1) hold equally and are positioned in the said chamber (33).
4. electrical equipment, this electrical equipment comprises housing and electric component, it is characterized in that, said electrical equipment comprises fixed frame (3) according to claim 1 or claim 2.
5. electrical equipment as claimed in claim 4 is characterized in that, said electrical equipment is an electrical measurement equipment, and said electric component is a mutual inductor.
6. electrical equipment, this electrical equipment comprises housing and electric component, it is characterized in that, said electrical equipment comprises fixed frame as claimed in claim 3 (3).
7. electrical equipment as claimed in claim 6; It is characterized in that; The input and output terminal (12 and 13) that said water conservancy diversion row's parts (1) comprise U-shaped water diversion part (11) and extend out from U-shaped water diversion part two ends respectively, and said input and output terminal (12 and 13) are rolled over to mutually same lateral deviation.
8. electrical equipment as claimed in claim 7 is characterized in that, on said of importing in terminal and the output terminal (12 and 13), is formed with the hole (14) that is used to be electrically connected the voltage extension line.
9. electrical equipment as claimed in claim 7; It is characterized in that; Said input and output terminal (12 and 13) form from the two ends bending of said water diversion part respectively; Between the two ends of said input terminal (12) and output terminal (13) and said water diversion part, form kink respectively thus, wherein at least one kink (15) leans with the teat (37) that is arranged in the said chamber (33), to locate said water conservancy diversion row parts (1).
10. like each described electrical equipment in the claim 6 to 9; It is characterized in that; Also comprise lid (4), said lid (4) is buckled on the said fixed frame (3), to arrange parts (1) and said electric component (2) with the said water conservancy diversion of fixed frame (3) co.
11. electrical equipment as claimed in claim 10 is characterized in that, said lid (4) is provided with thread jamming part (41), is used for fixing the voltage extension line that is connected with said water conservancy diversion row's parts (1).
12. like each described electrical equipment in the claim 6 to 9; It is characterized in that; Said electrical equipment comprises three said electric components; Said fixed frame (3) comprises three chambers that hold respectively and locate said electric component (2) (33), and said three chambers (33) are adjacent one another are and spaced apart by partition wall (31).
13., it is characterized in that said fixed frame (3) comprises and hold part like each described electrical equipment in the claim 6 to 9, said electric component (2) be held in wherein being used for.
14. electrical equipment as claimed in claim 13 is characterized in that, said fixed frame is provided with thread jamming part, is used for fixing the voltage extension line that is connected with said water conservancy diversion row's parts (1).
15., it is characterized in that said electrical equipment is an electrical measurement equipment, and said electric component is a mutual inductor like each described electrical equipment in the claim 6 to 9.
16. electrical equipment as claimed in claim 15 is characterized in that, also comprises lid (4), said lid (4) is buckled on the said fixed frame (3), to arrange parts (1) and said mutual inductor (2) with the said water conservancy diversion of fixed frame (3) co.
17. electrical equipment as claimed in claim 16 is characterized in that, said lid (4) is provided with thread jamming part (41), is used for fixing the voltage extension line that is connected with said water conservancy diversion row's parts (1).
18. electrical equipment as claimed in claim 17; It is characterized in that; Said input and output terminal (12 and 13) form from the two ends bending of said water diversion part respectively; Between the two ends of said input terminal (12) and output terminal (13) and said water diversion part, form kink respectively thus, wherein at least one kink (15) leans with the teat (37) that is arranged in the said chamber (33), to locate said water conservancy diversion row parts (1).
19. like each described electrical equipment in the claim 6 to 9; It is characterized in that; Said electrical equipment is a three phase electrical equipment; It comprises three mutual inductors as said electric component, and said fixed frame (3) comprises three chambers that hold respectively and locate said mutual inductor (2) (33), and said three chambers (33) are adjacent one another are and spaced apart by partition wall (31).
20. electrical equipment as claimed in claim 19 is characterized in that, also comprises lid (4), said lid (4) is buckled on the said fixed frame (3), to arrange parts (1) and said mutual inductor (2) with the said water conservancy diversion of fixed frame (3) co.
21. electrical equipment as claimed in claim 20 is characterized in that, said lid (4) is provided with thread jamming part (41), is used for fixing the voltage extension line that is connected with said water conservancy diversion row's parts (1).
22. electrical equipment as claimed in claim 15 is characterized in that, said fixed frame (3) comprises and holds part, said mutual inductor (2) is held in wherein being used for.
23. electrical equipment as claimed in claim 19 is characterized in that, said fixed frame (3) comprises and holds part, said mutual inductor (2) is held in wherein being used for.
24. electrical equipment as claimed in claim 22 is characterized in that, said fixed frame is provided with thread jamming part, is used for fixing the voltage extension line that is connected with said water conservancy diversion row's parts (1).
25. electrical equipment as claimed in claim 23 is characterized in that, said fixed frame is provided with thread jamming part, is used for fixing the voltage extension line that is connected with said water conservancy diversion row's parts (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204514754U CN202362331U (en) | 2011-11-15 | 2011-11-15 | Fixing frame and electrical device comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204514754U CN202362331U (en) | 2011-11-15 | 2011-11-15 | Fixing frame and electrical device comprising same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202362331U true CN202362331U (en) | 2012-08-01 |
Family
ID=46573509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204514754U Expired - Lifetime CN202362331U (en) | 2011-11-15 | 2011-11-15 | Fixing frame and electrical device comprising same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202362331U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103825204A (en) * | 2014-03-04 | 2014-05-28 | 北京仙络科技发展有限公司 | Electric distribution equipment |
-
2011
- 2011-11-15 CN CN2011204514754U patent/CN202362331U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103825204A (en) * | 2014-03-04 | 2014-05-28 | 北京仙络科技发展有限公司 | Electric distribution equipment |
| CN103825204B (en) * | 2014-03-04 | 2016-04-20 | 北京仙络科技发展有限公司 | Controller switching equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9425603B2 (en) | Bus plug apparatus using multiple interconnected enclosures | |
| US20140167786A1 (en) | Current Sensor For Power Measurement Applications | |
| CN203278004U (en) | Compact low-voltage power distribution cabinet | |
| RU2594365C2 (en) | Device for measuring electric current flowing in unit of electrical equipment, enabling measurement of power and unit of electrical equipment, including said device | |
| KR101856670B1 (en) | A bus bar for a distribution board capable of measuring a current by combining a shunt resistor and a method of manufacturing the same, and a bus bar module | |
| CN202362331U (en) | Fixing frame and electrical device comprising same | |
| CN104395975B (en) | Current transformer assembly | |
| KR101200489B1 (en) | Voltage and current transformer for underground low-voltage distribution box | |
| CN210863873U (en) | Single-phase electric parameter metering device and tail end metering device | |
| KR100435779B1 (en) | the electric meter of one terminal type | |
| WO2015159354A1 (en) | Electricity meter terminal device and electricity meter | |
| CN201829340U (en) | Electric assembled mutual inductor | |
| CN204857434U (en) | Mutual -inductor | |
| JP6277550B2 (en) | Current measuring instrument, current measuring instrument for distribution board, distribution board, manufacturing method of current measuring instrument | |
| CN211374881U (en) | Metering device and terminal metering device of three-phase electrical parameter | |
| JP6471990B2 (en) | Conductive bar, distribution board cabinet and distribution board | |
| CN201674141U (en) | 24KV electric energy measuring cart with suspended meters | |
| JP6598108B2 (en) | Current measuring device and distribution board using the same | |
| JP6424547B2 (en) | Distribution board | |
| JP2015198471A (en) | Cabinet for distribution board and distribution board using the same | |
| JP2015198470A (en) | Cabinet for distribution board with measuring unit and distribution board | |
| JP6340718B2 (en) | Internal device for distribution board and distribution board using the same | |
| CN219475701U (en) | Installation connection structure of electric energy meter relay and current transformer | |
| CN109411220B (en) | Combined transformer and electrical equipment | |
| KR20020057896A (en) | power terminal for electric meter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120801 |