CN109786104A - Capacitance partial pressure mutual inductor, low-voltage capacitance structure and its shell - Google Patents
Capacitance partial pressure mutual inductor, low-voltage capacitance structure and its shell Download PDFInfo
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Abstract
The present invention relates to capacitance partial pressure mutual inductor, low-voltage capacitance structure and its shells, to meet the requirement of single phase low voltage capacitance structure and three-phase low-voltage capacitance structure simultaneously.Low-voltage capacitance structure shell includes shell open at one end and the outlet side cover plate being sealed at shell nozzle, installation space is equipped in the shell, the mountable three-phase parallel interval arrangement of the installation space and the printed board assembly with multiple capacitors parallel with one another, shell is equipped with the notch for clamping the printed board assembly, and the outlet side cover plate is equipped with the outlet structure being pierced by for the signal wire of printed board assembly.When in use, the quantity for the printed board assembly being caught in notch according to service condition selection, such as single-phase or three-phase, can meet the requirement of single phase low voltage capacitance structure and three-phase low-voltage capacitance structure simultaneously.
Description
Technical field
The present invention relates to capacitance partial pressure mutual inductor, low-voltage capacitance structure and its shells, and in particular to a kind of shell and use
The single phase low voltage capacitance structure of the shell, three-phase low-voltage capacitance structure, single-phase capacitance partial pressure mutual inductor, three phase capacitance divide mutual inductance
Device.
Background technique
According to the working principle of sensor, the voltage transformer of source electronic type in the prior art includes electric resistance partial pressure mutual inductance
Device, resistive-capacitive voltage divider mutual inductor and capacitance partial pressure mutual inductor.Under the operating condition of high voltage, electric resistance partial pressure mutual inductor is to insulating materials
The problems such as more demanding, and that there are the stability of resistive element is poor, high-field electrode corona discharge, easily cause biggish measurement
Error.Resistive-capacitive voltage divider mutual inductor is because there are differential process circuit and Integral Processing circuit, transient performance is difficult to ensure；And capacitor
Mutual inductor is divided using the principle of capacitor series connection partial pressure, high-voltage signal of the direct progress of disease, since its harmonic performance is good, in electricity
Using than wide in Force system.
The structure of capacitance partial pressure mutual inductor in the prior art such as Authorization Notice No. is capacitor point shown in CN202307503U
Pressing mutual inductor includes high-voltage capacitance and low-voltage capacitance.In the prior art, secondary capacitor structure includes shell and is fixed on shell
Interior low-voltage capacitance.Low-voltage capacitance structure is mounted in terminal box, is equipped with the portions such as acquisition unit, terminal block in terminal box simultaneously
Part causes the space in terminal box compact, and the space for leaving installation low-voltage capacitance structure for is smaller.Three phase capacitance is divided
For mutual inductor, need that three low-voltage capacitances are installed in shell, while being also required to that more acquisition units and terminal block are installed,
The installation space for leaving low-voltage capacitance structure in terminal box for is smaller.
Meanwhile for single-phase capacitance divides mutual inductor and three phase capacitance partial pressure mutual inductor, due to the number of low-voltage capacitance
Amount is different, causes the shell of low-voltage capacitance structure also not identical, needs for single-phase capacitance partial pressure mutual inductor and three phase capacitance point
The shell of pressure mutual inductor design different structure can just be met the requirements, and cause the not general of shell, while being also required to for shell
Difference corresponding connection structure is set in terminal box.Moreover, including a capacity in low-voltage capacitance in the prior art
Biggish capacitor can only be replaced with the capacitor of other standards when needing to change the capacitance of low-voltage capacitance, need to be equipped with
Different model capacitor it is more.
Summary of the invention
The purpose of the present invention is to provide a kind of low-voltage capacitance structure shells, to meet single phase low voltage capacitance structure simultaneously
With the requirement of three-phase low-voltage capacitance structure；The single phase low voltage capacitive junctions for using the low-voltage capacitance structure shell are also provided
Structure, three-phase low-voltage capacitance structure and single-phase capacitance partial pressure mutual inductor and three phase capacitance divide mutual inductor.
To achieve the above object, the technical solution of low-voltage capacitance structure shell of the present invention is:
Scheme one: a kind of low-voltage capacitance structure shell including shell open at one end and is sealed at shell nozzle
Outlet side cover plate, the shell is interior to be equipped with installation space, and the mountable three-phase parallel interval of the installation space is arranged and had multiple
The printed board assembly of capacitor parallel with one another, shell are equipped with notch for clamping the printed board assembly, it is described go out
Line side cover board is equipped with the outlet structure being pierced by for the signal wire of printed board assembly.
The beneficial effects of the present invention are: low-voltage capacitance structure shell of the invention includes shell and outlet side cover plate, shell
Intracorporal installation space can accommodate simultaneously three-phase parallel interval arrangement printed board assembly, printed board assembly include printed board and
Multiple capacitors parallel with one another in printed board are set, are provided with notch on shell, in use, printed board assembly clamps
In notch.Outlet structure is arranged on outlet side cover plate to be pierced by for the signal wire of printed board assembly.In the present invention, with more
A capacitor parallel with one another being arranged in printed board substitutes single capacitor in the prior art, and the occupancy for reducing capacitor is empty
Between.It is such as single-phase or three in the use of the present invention, according to the quantity of printed board assembly that service condition selection is caught in notch
Phase can meet the requirement of single phase low voltage capacitance structure and three-phase low-voltage capacitance structure simultaneously.
Scheme two: on the basis of scheme one, the fixation of corresponding perforation is respectively equipped on the shell and outlet side cover plate
Mounting hole, the fixed mounting hole of shell have the gap towards the installation space.
Scheme three: on the basis of scheme one, the outlet side cover plate is equipped with printed board assembly connecting hole, prints board group
Part connecting hole is equipped with the connector for fixed printed board component, and the other end of the connector is used for and the printing board group
Part is connected.
Scheme four: on the basis of scheme one or scheme two or scheme three, outlet structure includes being set on outlet side cover plate
The outlet hole being pierced by for the signal wire of printed board assembly.
Scheme five: on the basis of scheme one or scheme two or scheme three, vertical installation lid is fixedly provided on the shell
Plate, vertical cover board of installing are equipped with for vertical installation part across to hang the shell, outlet side cover plate and vertical installation cover board
Loaded on the vertical mounting hole on terminal box side wall.
The technical solution of single phase low voltage capacitance structure of the present invention is:
Scheme one: a kind of single phase low voltage capacitance structure, including shell, the shell include shell and capping open at one end
Outlet side cover plate at shell nozzle, the shell is interior to be equipped with installation space, the mountable three-phase parallel interval of the installation space
The printed board assembly of arrangement, printed board assembly include printed board and multiple capacitors parallel with one another in printed board, shell
It is equipped with the notch for clamping the printed board assembly, the outlet side cover plate is worn equipped with the signal wire for printed board assembly
Outlet structure out, installation space are interior equipped with the single-phase printed board assembly.
Scheme two: on the basis of scheme one, the fixation of corresponding perforation is respectively equipped on the shell and outlet side cover plate
Mounting hole, the fixed mounting hole of shell have the gap towards the installation space.
Scheme three: on the basis of scheme one, the outlet side cover plate is equipped with printed board assembly connecting hole, and printed board connects
It connects hole and is equipped with the connector for being used for fixed printed board component, the other end of the connector is connected with the printed board.
Scheme four: on the basis of scheme one or scheme two or scheme three, outlet structure includes being set on outlet side cover plate
Outlet hole, the signal wire of printed board assembly in outlet hole by being pierced by.
Scheme five: on the basis of scheme one or scheme two or scheme three, vertical installation lid is fixedly provided on the shell
Plate, vertical cover board of installing are equipped with for vertical installation part across to hang the shell, outlet side cover plate and vertical installation cover board
Loaded on the vertical mounting hole on terminal box side wall.
Scheme six: on the basis of scheme one or scheme two or scheme three, close to outlet side cover plate in the printed board
One end is equipped with the threading hole and threading groove sequentially passed through for the signal wire of printed board assembly.
The technical solution of three-phase low-voltage capacitance structure of the present invention is:
Scheme one: a kind of three-phase low-voltage capacitance structure, including shell, the shell include shell and capping open at one end
Outlet side cover plate at shell nozzle, the shell is interior to be equipped with installation space, the mountable three-phase parallel interval of the installation space
The printed board assembly of arrangement, printed board assembly include printed board and multiple capacitors parallel with one another in printed board, shell
It is equipped with the notch for clamping the printed board assembly, the outlet side cover plate is worn equipped with the signal wire for printed board assembly
Outlet structure out, installation space is interior to be equipped with printed board assembly described in three-phase.
Scheme two: on the basis of scheme one, the fixation of corresponding perforation is respectively equipped on the shell and outlet side cover plate
Mounting hole, the fixed mounting hole of the shell have the gap towards the installation space.
Scheme three: on the basis of scheme one, the outlet side cover plate is equipped with printed board assembly connecting hole, and printed board connects
It connects hole and is equipped with the connector for being used for fixed printed board component, the other end of the connector is connected with the printed board.
Scheme four: on the basis of scheme one or scheme two or scheme three, outlet structure includes being set on outlet side cover plate
Outlet hole, the signal wire of printed board assembly in outlet hole by passing through.
Scheme five: on the basis of scheme one or scheme two or scheme three, vertical installation lid is fixedly provided on the shell
Plate, vertical cover board of installing are equipped with for vertical installation part across to hang the shell, outlet side cover plate and vertical installation cover board
Loaded on the vertical mounting hole on terminal box side wall.
Scheme six: on the basis of scheme one or scheme two or scheme three, close to outlet side cover plate in the printed board
One end is equipped with the threading hole and threading groove sequentially passed through for the signal wire of printed board assembly.
Scheme seven: on the basis of scheme one or scheme two or scheme three, notch includes one on shell
Or two for clamping the pocket set of single printed board, pocket set includes the card slot described at least one, shares the same card slot
It is fixedly linked between two or three described printed board assemblys of group by copper post.
The technical solution of single-phase capacitance partial pressure mutual inductor of the present invention is:
Scheme one: a kind of single-phase capacitance partial pressure mutual inductor, including high-voltage capacitor structure and low-voltage capacitance structure, low-voltage capacitance
Structure includes shell, and the shell includes shell open at one end and the outlet side cover plate being sealed at shell nozzle, the shell
It is equipped with installation space, the printed board assembly of the mountable three-phase parallel interval arrangement of the installation space in vivo, printed board assembly includes
Printed board and multiple capacitors parallel with one another in printed board, shell are equipped with the card slot knot for clamping the printed board assembly
Structure, the outlet side cover plate are equipped with the outlet structure being pierced by for the signal wire of printed board assembly, are equipped in installation space single-phase
The printed board assembly.
Scheme two: on the basis of scheme one, the fixation of corresponding perforation is respectively equipped on the shell and outlet side cover plate
Mounting hole, the fixed mounting hole of shell have the gap towards the installation space.
Scheme three: on the basis of scheme one, the outlet side cover plate is equipped with printed board assembly connecting hole, and printed board connects
It connects hole and is equipped with the connector for being used for fixed printed board component, the other end of the connector is connected with the printed board.
Scheme four: on the basis of scheme one or scheme two or scheme three, outlet structure includes being set on outlet side cover plate
Outlet hole, the signal wire of printed board assembly in outlet hole by being pierced by.
Scheme five: on the basis of scheme one or scheme two or scheme three, vertical installation lid is fixedly provided on the shell
Plate, vertical cover board of installing are equipped with for vertical installation part across to hang the shell, outlet side cover plate and vertical installation cover board
Loaded on the vertical mounting hole on terminal box side wall.
Scheme six: on the basis of scheme one or scheme two or scheme three, close to outlet side cover plate in the printed board
One end is equipped with the threading hole and threading groove sequentially passed through for the signal wire of printed board assembly.
The technical solution of three phase capacitance partial pressure mutual inductor of the present invention is:
Scheme one: a kind of three phase capacitance partial pressure mutual inductor, including high-voltage capacitor structure and low-voltage capacitance structure, low-voltage capacitance
Structure includes shell, and shell includes shell open at one end and the outlet side cover plate that is sealed at shell nozzle, in the shell
Equipped with installation space, the printed board assembly of the mountable three-phase parallel interval arrangement of the installation space, printed board assembly includes printing
Plate and multiple capacitors parallel with one another in printed board, shell are equipped with the notch for clamping the printed board assembly,
The outlet side cover plate is equipped with the outlet structure being pierced by for the signal wire of printed board assembly, is equipped with described in three-phase in installation space
Printed board assembly.
Scheme two: on the basis of scheme one, the fixation of corresponding perforation is respectively equipped on the shell and outlet side cover plate
Mounting hole, the fixed mounting hole of the shell have the gap towards the installation space.
Scheme three: on the basis of scheme one, the outlet side cover plate is equipped with printed board assembly connecting hole, and printed board connects
It connects hole and is equipped with the connector for being used for fixed printed board component, the other end of the connector is connected with the printed board.
Scheme four: on the basis of scheme one or scheme two or scheme three, outlet structure includes being set on outlet side cover plate
Outlet hole, the signal wire of printed board assembly in outlet hole by passing through.
Scheme five: on the basis of scheme one or scheme two or scheme three, vertical installation lid is fixedly provided on the shell
Plate, vertical cover board of installing are equipped with for vertical installation part across to hang the shell, outlet side cover plate and vertical installation cover board
Loaded on the vertical mounting hole on terminal box side wall.
Scheme six: on the basis of scheme one or scheme two or scheme three, close to outlet side cover plate in the printed board
One end is equipped with the threading hole and threading groove sequentially passed through for the signal wire of printed board assembly.
Scheme seven: on the basis of scheme one or scheme two or scheme three, notch includes one on shell
Or two for clamping the pocket set of single printed board, pocket set includes the card slot described at least one, shares the same card slot
It is fixedly linked between two or three described printed board assemblys of group by copper post.
Detailed description of the invention
Fig. 1 is that three phase capacitance of the present invention divides the first width schematic diagram in mutual inductor embodiment；
Fig. 2 is that three phase capacitance of the present invention divides the second width schematic diagram in mutual inductor embodiment；
Fig. 3 is the schematic diagram that three phase capacitance of the present invention divides shell in mutual inductor embodiment；
Fig. 4 is the schematic diagram that three phase capacitance of the present invention divides printed board in mutual inductor embodiment；
Fig. 5 is the schematic diagram that three phase capacitance of the present invention divides that multiple printed boards fit together in mutual inductor embodiment；
Fig. 6 is the schematic diagram that three phase capacitance of the present invention divides outlet side cover plate in mutual inductor embodiment；
Fig. 7 is that three phase capacitance of the present invention divides the schematic diagram that cover board is vertically installed in mutual inductor embodiment；
Fig. 8 is vertically to install cover board, shell and outlet side cover plate group in three phase capacitance of the present invention partial pressure mutual inductor embodiment
Schematic diagram after dress；
Fig. 9 is the top view of Fig. 8；
Figure 10 is the schematic diagram that three phase capacitance of the present invention divides circuit board fixed block in mutual inductor embodiment.
Specific embodiment
Embodiments of the present invention are described further with reference to the accompanying drawing.
The specific embodiment of three phase capacitance partial pressure mutual inductor of the invention, as shown in Figures 1 to 10, the present embodiment is with three-phase
It is illustrated for capacitance partial pressure mutual inductor.The working principle that three phase capacitance divides mutual inductor is as depicted in figs. 1 and 2, three-phase electricity
Holding partial pressure mutual inductor includes high-voltage capacitor structure C1 and three-phase low-voltage capacitance structure C2, and high-voltage capacitor structure C1 is by suspension cylinder 1
It is formed with Primary Conductor 2, using coaxial capacitance voltage divider principle, realizes the accurate progress of disease an of high voltage signal, high-voltage capacitance knot
Structure is the prior art, is no longer described in detail in the present invention, its calculation formula is:
C1=2 π ε0εr*l*ln(Φ1/Φ2)
In formula, ε0、εrRespectively dielectric constant of air, the dielectric constant of air of dielectric, l are suspension barrel lenght,
Φ1For the internal diameter of suspension cylinder, Φ2For the outer diameter of Primary Conductor.
Multiple high precision capacitors that three-phase low-voltage capacitance structure C2 is caused by medium, size uniformity, by way of in parallel
It is composed, its calculation formula is:
C2=C21+C22+···+C2n
In formula, C21~C2nThe high-accuracy capacitor caused for medium, size uniformity.
For the capacitance partial pressure mutual inductor of different structure, it can calculate and match according to the size of high-voltage capacitor structure C1
Three-phase low-voltage capacitance structure C2 made by welding the different high-accuracy capacitor of quantity in the printed board of low-voltage capacitance structure
Coaxial capacitance partial-pressure structure low-pressure side partial pressure U2 is remained unchanged.By secondary singal Acquisition Circuit, the digital signal of acquisition is turned
Become optical signal and is transmitted to combining unit.
Three-phase low-voltage capacitance structure include shell and setting three-phase printed board assembly, shell include shell inside the shell.Shell
The front end of body 3 is equipped with opening, offers card slot 5 on the intracorporal left and right sides inner wall of shell.In the present embodiment, the card slot of two sides
5 quantity are the card slot reciprocal correspondence of two and the left and right sides, and a pair of of card slot 5 on sustained height constitutes a pocket set.
In the present embodiment be provided with two above-mentioned pocket sets, one piece of printed board 6 can be installed, can also simultaneously three pieces of printed boards 6, both
It is able to satisfy the requirement of single-phase capacitance partial pressure mutual inductor, also meets the requirement of three phase capacitance partial pressure mutual inductor, realizes
The versatility of shell.The size of the width c of card slot 5 is determined by the thickness of printed board 6, between two opposite 5 slot bottoms of card slot
The size of distance a is determined that the distance between two neighboring card slot 5 b has been assembled by three printed boards 6 by the width of printed board 6
What the actual size after determined.Be additionally provided with shell bores 4 at four angles of shell 3, for install outlet side cover plate and
Vertical installation cover board 18, wherein shell bores 4 are threaded hole.As seen from Figure 3, shell bores 4 have towards shell 3
Internal gap.Ear 24 is additionally provided on shell 3, ear 24 is provided with the link slot passed through for bolt, horizontal in shell 3
Play the role of for shell 3 being connected in terminal box when installation.
Printed board assembly includes printed board 6, and multiple pads 7 are provided in printed board 6, for welding the identical electricity of specification
Hold, in the edge of printed board 6, there are four printed board mounting holes 8 for setting, for realizing the fixation between two neighboring printed board 6
It is connected.When three printed boards 6 being arranged simultaneously, with hexagonal copper post 13 also cross the printed board mounting hole 8 of three printed boards, so that it may
To guarantee that three printed boards 6 are fixedly linked.In the leading-out terminal of printed board 6 (close to one end that shell 3 is open after assembling in place)
There are two mounting hole 9 and four fairleads 10 for setting.In use, installation L shape bent plate or circuit board are solid on installation connecting hole 9
Determine block 21, the other end of L shape bent plate or circuit board fixed block 21 is fixed on outlet side cover plate 16, it is fixed to realize to printed board 6
Position, prevents printed board 6 from slidably reciprocating in card slot.Wherein the structure of circuit board fixed block 21 is as shown in Figure 10, and circuit board is fixed
The first bolt hole 22 and the second bolt hole 23 are offered on block 21, one in the first bolt hole 22 and the second bolt hole 23 and print
Mounting hole 9 in making sheet 6 is corresponding and is connected, another and phase corresponding with the printed board assembly connecting hole 17 on outlet side cover plate 16
Even.Circuit board fixed block 21 or L shape bent plate constitute connector.
The quantity of fairlead 10 is four, and is divided into the left and right sides two-by-two, corresponding with the signal wire 12 of printed board, together
Outlet direction (i.e. front-rear direction) arranged for interval of two fairleads 10 corresponding to one signal wire 12 along printed board, fairlead 10
For the fixation of signal wire, when assembly, makes the signal wire of printed board assembly sequentially pass through corresponding fairlead, prevents signal wire from connecing
Stress loosens, falls off at line.The leading-out terminal of printed board 6 is provided with line outlet groove 11, after the assembly of outlet side cover plate 16, printed board
Gap very little or seamless between 6 leading-out terminal and outlet side cover plate 16, at this point, by signal wire 12 by being passed through in line outlet groove 11
It is pierced by again by the outlet hole 14 on outlet side cover plate 16 afterwards.
Outlet side cover plate 16 is equipped with that the cover board mounting hole 15 of corresponding with shell bores 4 perforation when using, several go out
String holes 14 and two printed board assembly connecting holes 17, wherein printed board assembly connecting hole 17 is used to and above-mentioned L shape bent plate or electricity
Road plate fixed block 21 is connected.Outlet hole 14 selects to use according to requirement of engineering, and installation rubber sheath protects signal at outlet hole 14
Line 12.
Shell further includes vertical installation cover board 18, and vertical cover board 18 of installing offers cover board mounting hole 19, cover board mounting hole
19 is corresponding with shell bores 4, and when installation, vertical installation cover board 18 is fixed in terminal box by vertical mounting hole 20
Vertical installation cover board 18 is fixed on the side away from opening of shell 3, and the vertical installation part such as bolt or pin is passed through by side
Cover board mounting hole 19 and shell bores 4 are realized vertical installation cover board 18, shell 3 and outlet side cover plate 16 being suspended at wiring
In box.
In the present embodiment, the capacitor in printed board and printed board constitutes printed board assembly, in the present embodiment, sets in shell
Three-phase printed board assembly is set.It is realized and is fixedly linked by hexagonal copper post between three-phase printed board assembly, is arranged in shell
Two pocket sets, realize the fixation to three-phase printed board assembly by two pocket sets.In other embodiments, pocket set
Quantity can be increased and decreased according to the actual situation, single pocket set and three pocket sets are such as set.In other embodiments, when
When shell 3 is horizontally arranged installation, vertical installation cover board can be removed.
In the present embodiment, substitute single capacitors in the prior art by using multiple capacitors parallel with one another, pass through by
Each capacitor is placed in printed board, can reduce the space of the occupied terminal box of low-voltage capacitance structure as much as possible.In shell
Space one or three printing board group can be set in shell simultaneously for three printed board assembly parallel intervals arrangement
Part, while the requirement of single-phase capacitance partial pressure mutual inductor and three phase capacitance partial pressure mutual inductor is met, realize the logical of shell
The property used.
In the above embodiments, multiple card slots together constitute notch.Multiple outlet holes constitute outlet structure.
The specific embodiment of three-phase low-voltage capacitance structure of the present invention, three-phase low-voltage capacitance structure and three phase capacitance divide mutual inductance
Three-phase low-voltage capacitance structure in device is consistent, and content repeats no more.
The specific embodiment of single-phase capacitance of the present invention partial pressure mutual inductor, with above-described embodiment the difference is that, this reality
It applies in example, single-phase printed board assembly is placed in the shell of low-voltage capacitance structure.
The specific embodiment of single phase low voltage capacitance structure of the present invention, single phase low voltage capacitance structure include shell and are arranged outside
Single-phase printed board assembly in shell, structure is consistent with the structure in above-described embodiment, and content repeats no more.
The specific embodiment of low-voltage capacitance structure shell of the present invention, the structure one in the structure and above-described embodiment of shell
It causes, content repeats no more.
Claims (10)
1. a kind of low-voltage capacitance structure shell, it is characterised in that: including shell open at one end and be sealed at shell nozzle
Outlet side cover plate, be equipped with installation space in the shell, the mountable three-phase parallel interval arrangement of the installation space and have more
The printed board assembly of a capacitor parallel with one another, shell is equipped with the notch for clamping the printed board assembly, described
Outlet side cover plate is equipped with the outlet structure being pierced by for the signal wire of printed board assembly.
2. low-voltage capacitance structure shell according to claim 1, it is characterised in that: on the shell and outlet side cover plate
It is respectively equipped with the fixed mounting hole of corresponding perforation, the fixed mounting hole of shell has the gap towards the installation space.
3. low-voltage capacitance structure shell according to claim 1, it is characterised in that: the outlet side cover plate is equipped with print
Making sheet component connecting hole, printed board assembly connecting hole are equipped with the connector for fixed printed board component, the connector
The other end with the printed board assembly for being connected.
4. low-voltage capacitance structure shell according to claim 1 or 2 or 3, it is characterised in that: outlet structure includes being set to
The outlet hole being pierced by for the signal wire of printed board assembly on outlet side cover plate.
5. low-voltage capacitance structure shell according to claim 1 or 2 or 3, it is characterised in that: also fixed on the shell
Have a vertical installation cover board, it is vertical cover board be installed be equipped with pass through for vertical installation part with by the shell, outlet side cover plate and perpendicular
To installation cover board hanging in the vertical mounting hole on terminal box side wall.
6. a kind of single phase low voltage capacitance structure, including shell, it is characterised in that: the shell includes shell and envelope open at one end
It covers the outlet side cover plate at shell nozzle, is equipped with installation space in the shell, the installation space mountable three parallel
Every the printed board assembly of arrangement, printed board assembly includes printed board and multiple capacitors parallel with one another in printed board, shell
Body is equipped with the notch for clamping the printed board assembly, and the outlet side cover plate is equipped with the signal wire for printed board assembly
The outlet structure being pierced by, installation space are interior equipped with the single-phase printed board assembly.
7. single phase low voltage capacitance structure according to claim 6, it is characterised in that: divide on the shell and outlet side cover plate
The fixed mounting hole of perforation She You not be corresponded to, the fixed mounting hole of shell has the gap towards the installation space.
8. a kind of three-phase low-voltage capacitance structure, including shell, it is characterised in that: the shell includes shell and envelope open at one end
It covers the outlet side cover plate at shell nozzle, is equipped with installation space in the shell, the installation space mountable three parallel
Every the printed board assembly of arrangement, printed board assembly includes printed board and multiple capacitors parallel with one another in printed board, shell
Body is equipped with the notch for clamping the printed board assembly, and the outlet side cover plate is equipped with the signal wire for printed board assembly
The outlet structure being pierced by, installation space is interior to be equipped with printed board assembly described in three-phase.
9. a kind of single-phase capacitance divides mutual inductor, including high-voltage capacitor structure and low-voltage capacitance structure, low-voltage capacitance structure include
Shell, it is characterised in that: the shell includes shell open at one end and the outlet side cover plate being sealed at shell nozzle, described
Installation space, the printed board assembly of the mountable three-phase parallel interval arrangement of the installation space, printed board assembly packet are equipped in shell
Printed board and multiple capacitors parallel with one another in printed board are included, shell is equipped with the card slot for clamping the printed board assembly
Structure, the outlet side cover plate are equipped with the outlet structure being pierced by for the signal wire of printed board assembly, are equipped in installation space single
Printed board assembly described in phase.
10. a kind of three phase capacitance divides mutual inductor, including high-voltage capacitor structure and low-voltage capacitance structure, low-voltage capacitance structure include
Shell, it is characterised in that: shell includes shell open at one end and the outlet side cover plate being sealed at shell nozzle, the shell
Interior to be equipped with installation space, the printed board assembly of the mountable three-phase parallel interval arrangement of the installation space, printed board assembly includes print
Making sheet and multiple capacitors parallel with one another in printed board, shell are equipped with the card slot knot for clamping the printed board assembly
Structure, the outlet side cover plate are equipped with the outlet structure being pierced by for the signal wire of printed board assembly, are equipped with three-phase in installation space
The printed board assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711107965.0A CN109786104A (en) | 2017-11-10 | 2017-11-10 | Capacitance partial pressure mutual inductor, low-voltage capacitance structure and its shell |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711107965.0A CN109786104A (en) | 2017-11-10 | 2017-11-10 | Capacitance partial pressure mutual inductor, low-voltage capacitance structure and its shell |
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| CN109786104A true CN109786104A (en) | 2019-05-21 |
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| CN201711107965.0A Pending CN109786104A (en) | 2017-11-10 | 2017-11-10 | Capacitance partial pressure mutual inductor, low-voltage capacitance structure and its shell |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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