CN209297843U - Capacitor fixation kit and current transformer - Google Patents
Capacitor fixation kit and current transformer Download PDFInfo
- Publication number
- CN209297843U CN209297843U CN201822198935.1U CN201822198935U CN209297843U CN 209297843 U CN209297843 U CN 209297843U CN 201822198935 U CN201822198935 U CN 201822198935U CN 209297843 U CN209297843 U CN 209297843U
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- fixed plate
- fixed
- capacitor
- fixation kit
- screw
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Abstract
The utility model provides a kind of capacitor fixation kit and current transformer, and the capacitor fixation kit includes the first fixed plate, the second fixed plate, middle support column；Wherein: first fixed plate and the second fixed plate are arranged in parallel, and first fixed plate is fixedly connected with the second fixed plate by the middle support column；Spacing between first fixed plate and the second fixed plate is matched with the axial dimension of capacitor to be fixed, and is gripped the capacitor to be fixed with the second fixed plate by first fixed plate；The through-hole passed through in second fixed plate with multiple connecting terminals for the capacitor to be fixed；The utility model carries out capacitor both ends while fixed by the first fixed plate of setting and the second fixed plate, keeps fixed form relatively reliable, and structure is simple, improves stability and practicability.
Description
Technical field
The utility model embodiment is related to power electronic equipment field, more specifically to a kind of capacitor fixation kit
And current transformer.
Background technique
Current transformer is a kind of voltage, frequency, the number of phases and other electricity or the changed electricity of characteristic that can make power-supply system
Power electronic equipment, mainly by one or more power electronic equipments together with convertor transformer, filter, main switch and other
Ancillary equipment composition；Wherein: the applicability of filter (RC filter) is wide, reliability and validity answer it widely
With.
The difference of filter capacitance and structure in current transformer, there is also differences for the mounting means of capacitor.Currently, for cylinder
The capacitor of shape is generally broadly divided into two kinds of installation fixed forms:
The first is fixed for screw-type, by capacitor bottom inserted num or stud, installation position corresponding with mounting surface into
Row be threadedly coupled fix, when capacitor volume is smaller, capacitor can not inserted num or stud, have certain limitation；And lead to
The fixed form being threadedly coupled is crossed, the position of capacitor can not adjust accordingly on center axis rotation direction, when anti-on capacitor
Sudden and violent hole when requiring towards that can not adjust, and using being restricted, practicability is insufficient；In addition, for needing to utilize radiator fixation
Capacitor, if be directly threadedly attached on radiator, the high-temperature of radiator will affect the normal use of capacitor, reduce electricity
Hold reliability, shortens the working life.
It is fixed for clamping hoop type for second, passes through and realize fixation to capacitor, peace of the fixed form in vibration by clip
Dress environment use may cause loosening, and stability is insufficient；And in the case where capacitance is high, the multiple capacitors of needs are used in parallel,
Clamping hoop type fixation will increase installation space, and space utilization rate is poor.
Utility model content
The utility model embodiment uses limited, influence service life and clamping hoop type for above-mentioned existing screw-type is fixed
Fixed space utilization rate is poor, stability and practicability deficiency these problems, provides a kind of capacitor fixation kit and current transformer.
The technical solution that the utility model embodiment solves above-mentioned technical problem is to provide a kind of capacitor fixation kit, wraps
Include the first fixed plate, the second fixed plate, middle support column；Wherein: first fixed plate and the second fixed plate are arranged in parallel, and
First fixed plate is fixedly connected with the second fixed plate by the middle support column；First fixed plate and second is fixed
Spacing between plate is matched with the axial dimension of capacitor to be fixed, and by first fixed plate and the second fixed plate by institute
Capacitor to be fixed is stated to grip；In second fixed plate there are multiple connecting terminals for the capacitor to be fixed to pass through
Through-hole.
Preferably, the upper surface of first fixed plate has multiple positioning corresponding with the second fixed plate through-hole
Slot, and the shape and size of the radial section of the shape and size of the radial section of the locating slot and the capacitor to be fixed
Match.
Preferably, the capacitor fixation kit further includes the elastic cushion being made of elastic material, and the elastic cushion is placed in institute
It states in locating slot.
Preferably, the through-hole in second fixed plate is stepped axially, and below the step surface in the through-hole
The shape and size of partial radial section are matched with the shape and size of the radial section of the capacitor to be fixed.
Preferably, the thickness H of the elastic cushion meets: H=(L1-L2)/ζ, wherein L1 is determining for first fixed plate
Spacing between the bottom of position slot and the step surface of the second fixed plate, L2 are the axial dimension of the capacitor to be fixed, and ζ is described
The decrement of elastic cushion.
Preferably, the diameter d of the step surface upper section in second fixed plate in through-hole meets: d=(L+D)/2,
Wherein, L is the positive and negative anodes spacing of the capacitor to be fixed, and D is the diameter of the capacitor to be fixed.
Preferably, the end face of the first end of the middle support column has the first screw hole, the following table of first fixed plate
Face has the first counterbore；The first end of the middle support column is fixed on the upper table of first fixed plate by the first screw
Face, first screw pass through first counterbore, and the head of screw of first screw from the lower section of first fixed plate
It is embedded in first counterbore；
The end face of the second end of the middle support column has the second screw hole, and the upper surface of second fixed plate has the
Two counterbores；The second end of the middle support column is fixed on the lower surface of second fixed plate by the second screw, and described
Two screws pass through second counterbore from the upper surface of second fixed plate, and described in the head of screw insertion of second screw
Second counterbore.
The utility model embodiment also provides a kind of current transformer, including radiator, printed circuit board and any one as above
The capacitor fixation kit；Wherein, first fixed plate is fixed on the substrate of the radiator, the printed circuit board
It is fixed on the top of second fixed plate.
Preferably, the upper surface of second fixed plate is fixed with insulating supporting column, and the printed circuit board is fixed on institute
State the top of insulating supporting column.
Preferably, there is heat insulating mattress between first fixed plate and the substrate of the radiator.
The capacitor fixation kit and current transformer of the utility model embodiment have the advantages that solid by setting first
Fixed board and the second fixed plate carry out capacitor both ends while fixed, keep fixed form relatively reliable, and structure is simple, improve steady
Qualitative and practicability.And the first fixed plate and the second fixed plate are respectively equipped with multiple corresponding locating slots and through-hole, can be simultaneously
Fixed multiple capacitors, reduce mounting area, improve space utilization rate.
In addition, the utility model embodiment is additionally provided with the elastic cushion being made of elastic material, the limit for being conducive to capacitor is solid
It is fixed, capacitor is protected, is prolonged the service life.
Detailed description of the invention
Fig. 1 is the decomposition diagram of capacitor fixation kit and current transformer provided by the embodiment of the utility model；
Fig. 2 is the structural schematic diagram of capacitor fixation kit provided by the embodiment of the utility model and current transformer front projection；
Fig. 3 is the structural schematic diagram of the first fixed plate of capacitor fixation kit provided by the embodiment of the utility model；
Fig. 4 is the structural schematic diagram of the second fixed plate of capacitor fixation kit provided by the embodiment of the utility model.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
It as shown in Figs 1-4, is the structural schematic diagram of capacitor fixation kit and current transformer provided by the embodiment of the utility model,
The capacitor fixation kit can be applied in power electronic equipment field, especially current transformer.The fixed group of capacitor in the present embodiment
Part 10, including the first fixed plate 11, the second fixed plate 12, middle support column 13；Wherein: the first fixed plate 11 and the second fixed plate
12 are arranged in parallel, and the first fixed plate 11 is fixedly connected with the second fixed plate 12 by middle support column 13；First fixed plate 11
And the second spacing between fixed plate 12 is matched with the axial dimension of capacitor 20 to be fixed, and passes through the first fixed plate 11 and the
Two fixed plates 12 grip capacitor 20 to be fixed.
Above-mentioned capacitor fixation kit 10 is by the first fixed plate 11 of setting and the second fixed plate 12, to 20 both ends two of capacitor
A different position carries out while fixing, simple and reasonable, is different from existing screw-type and fixes, the fixed form of the present embodiment
More solid and reliable, stability and practicability are high.
In addition, the through-hole 120 passed through in the second fixed plate 12 with multiple connecting terminals for capacitor 20, the first fixed plate
11 upper surface has multiple locating slots 111 corresponding with 120 quantity of through-hole in the second fixed plate 12, and locating slot 111
The shape and size of radial section are matched with the shape and size of the radial section of capacitor 20 to be fixed.It is fixed by above-mentioned first
Plate 11 and the second fixed plate 12 are respectively equipped with multiple corresponding locating slots 111 and through-hole 120, can fix multiple capacitors 20 simultaneously,
It is fixed relative to the fixed needs of existing clamping hoop type by the clip of corresponding capacitor quantity, the fixed group of the capacitor of the present embodiment
Part 10 is more convenient and practical, can be by adjusting the number of locating slot 111 in through-hole 120 in the first fixed plate 11 and the second fixed plate 12
To realize that the installation under more capacitor requirements environment is fixed mounting area is greatly reduced, and improve space utilization rate in amount；This
Outside, it is fixed by the limit of through-hole 120 and locating slot 111, it, can be fast in the case where hole anti-riot on capacitor 20 has direction to require
The position of the whole capacitor 20 of velocity modulation fixes again, and applicability is wide.
Specifically, capacitor fixation kit 10 further includes the elastic cushion 14 being made of elastic material (such as rubber), elastic cushion
14 are placed in locating slot 111, i.e., capacitor 20 is connected on elastic cushion 14, can eliminate electricity by the elastic characteristic of elastic cushion 14
Hold 20 assembly problems that may be present generated by mismatch error, and resilient protection is carried out to capacitor 20, practicability is high.
Particularly, the through-hole 120 in the second fixed plate 12 is stepped axially, and the step surface 121 in through-hole 120
The shape and size of the radial section of section below are matched with the shape and size of the radial section of capacitor 20 to be fixed.In addition,
The thickness H of above-mentioned elastic cushion 14 meets: H=(L1-L2)/ζ, wherein L1 be the locating slot 111 of the first fixed plate 11 bottom with
Spacing between the step surface 121 of second fixed plate 12, L2 are the axial dimension of capacitor 20 to be fixed, and ζ is the elastic cushion
Decrement makes the design of elastic cushion 14 more by the required thickness of the available elastic cushion 14 of calculating formula H=(L1-L2)/ζ
It is scientific and reasonable.
In addition, the diameter d of 121 upper section of step surface of through-hole 120 meets in the second fixed plate 12: d=(L+D)/2,
Wherein, L is the positive and negative anodes spacing of capacitor 20 to be fixed, and D is the diameter of capacitor 20 to be fixed, can be quickly to second by calculating
The relevant design parameter of fixed plate 12, improves efficiency.
Specifically, the end face of the first end of middle support column 13 has the first screw hole, the following table mask of the first fixed plate 11
There is the first counterbore；The first end of middle support column 13 is fixed on the upper surface of the first fixed plate 11, the first spiral shell by the first screw
Nail passes through the first counterbore from the lower section of the first fixed plate 11, and the head of screw of the first screw is embedded in the first counterbore.
Correspondingly, the end face of the second end of middle support column 13 has the second screw hole, and the upper surface of the second fixed plate 12 has
There is the second counterbore；The second end of middle support column 13 is fixed on the lower surface of the second fixed plate 12, the second spiral shell by the second screw
Nail passes through the second counterbore from the upper surface of the second fixed plate 12, and the head of screw of the second screw is embedded in the second counterbore.Pass through centre
Support column 13 is fixedly connected with the first fixed plate 11 and the second fixed plate 12, increases the intensity of capacitor fixation kit 10, improves and stablizes
Property.
In addition, the utility model embodiment also provides a kind of current transformer, including radiator 30, printed circuit board 40 and on
State capacitor fixation kit 10；Wherein, the first fixed plate 11 in capacitor fixation kit 10 is fixed on the substrate of radiator 30, print
Circuit board 40 processed is fixed on the top of the second fixed plate 12.
Specifically, the upper surface of the second fixed plate 12 is fixed with insulating supporting column 50, and printed circuit board 40 is fixed on insulation
The top of support column 50.It, can be by printed circuit board by the way that insulated column 50 is arranged above the second fixed plate 12 in above-mentioned current transformer
40 are directly installed on insulated column 50, are not necessarily to individually other installation sites setting 40 installation position of printed circuit board inside current transformer,
Simple and reasonable and integrated level is high, is applicable to small space, and practicability and applicability are high.
Particularly, there is heat insulating mattress (such as heat-preservation cotton) between the first fixed plate 11 and the substrate of radiator 30；By every
The heat-proof quality of heat pad effectively eliminates influence of the high-temperature of radiator 30 to capacitor 20, and capacitor 20 can be directly mounted at heat dissipation
On device 30, keep applicability more extensive.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art within the technical scope disclosed by the utility model, can readily occur in
Change or replacement, should be covered within the scope of the utility model.Therefore, the protection scope of the utility model should
It is subject to the protection scope in claims.
Claims (10)
1. a kind of capacitor fixation kit, which is characterized in that including the first fixed plate, the second fixed plate, middle support column；Wherein:
First fixed plate and the second fixed plate are arranged in parallel, and first fixed plate and the second fixed plate pass through the intermediate branch
Dagger is fixedly connected；The axial dimension of spacing and capacitor to be fixed between first fixed plate and the second fixed plate
Match, and is gripped the capacitor to be fixed with the second fixed plate by first fixed plate；In second fixed plate
The through-hole passed through with multiple connecting terminals for the capacitor to be fixed.
2. capacitor fixation kit according to claim 1, which is characterized in that the upper surface of first fixed plate has more
A locating slot corresponding with the second fixed plate through-hole, and the shape and size of the radial section of the locating slot and it is described to
The shape and size of the radial section of fixed capacity match.
3. capacitor fixation kit according to claim 2, which is characterized in that the capacitor fixation kit further includes by elasticity
The elastic cushion that material is constituted, the elastic cushion are placed in the locating slot.
4. capacitor fixation kit according to claim 3, which is characterized in that the through-hole in second fixed plate is in axial direction
It is stepped, and the shape and size of the radial section of the step surface section below in the through-hole and the capacitor to be fixed
The shape and size of radial section match.
5. capacitor fixation kit according to claim 4, which is characterized in that the thickness H of the elastic cushion meets: H=
(L1-L2)/ζ, wherein between L1 is between the bottom of locating slot and the step surface of the second fixed plate of first fixed plate
Away from L2 is the axial dimension of the capacitor to be fixed, and ζ is the decrement of the elastic cushion.
6. capacitor fixation kit according to claim 4, which is characterized in that the step in second fixed plate in through-hole
The diameter d of face upper section meets: d=(L+D)/2, wherein L is the positive and negative anodes spacing of the capacitor to be fixed, D be it is described to
The diameter of fixed capacity.
7. capacitor fixation kit according to claim 1, which is characterized in that the end face of the first end of the middle support column
With the first screw hole, the lower surface of first fixed plate has the first counterbore；The first end of the middle support column passes through the
One screw is fixed on the upper surface of first fixed plate, and first screw passes through described from the lower section of first fixed plate
First counterbore, and the head of screw of first screw is embedded in first counterbore；
The end face of the second end of the middle support column has the second screw hole, and the upper surface of second fixed plate has second to sink
Hole；The second end of the middle support column is fixed on the lower surface of second fixed plate, second spiral shell by the second screw
Nail passes through second counterbore, and the head of screw insertion described second of second screw from the upper surface of second fixed plate
Counterbore.
8. a kind of current transformer, which is characterized in that including radiator, printed circuit board and such as any one of claim 1-7 institute
The capacitor fixation kit stated；Wherein, first fixed plate is fixed on the substrate of the radiator, and the printed circuit board is solid
It is scheduled on the top of second fixed plate.
9. current transformer according to claim 8, which is characterized in that the upper surface of second fixed plate is fixed with insulation branch
Dagger, the printed circuit board are fixed on the top of the insulating supporting column.
10. current transformer according to claim 8, which is characterized in that the substrate of first fixed plate and the radiator
Between have heat insulating mattress.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822198935.1U CN209297843U (en) | 2018-12-26 | 2018-12-26 | Capacitor fixation kit and current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822198935.1U CN209297843U (en) | 2018-12-26 | 2018-12-26 | Capacitor fixation kit and current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209297843U true CN209297843U (en) | 2019-08-23 |
Family
ID=67648687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822198935.1U Active CN209297843U (en) | 2018-12-26 | 2018-12-26 | Capacitor fixation kit and current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209297843U (en) |
-
2018
- 2018-12-26 CN CN201822198935.1U patent/CN209297843U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |