CN207082398U - Transformer and RCCB - Google Patents
Transformer and RCCB Download PDFInfo
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- CN207082398U CN207082398U CN201720878077.8U CN201720878077U CN207082398U CN 207082398 U CN207082398 U CN 207082398U CN 201720878077 U CN201720878077 U CN 201720878077U CN 207082398 U CN207082398 U CN 207082398U
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- tube wall
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Abstract
It the utility model is related to Low Voltage Electrical Apparatus, and in particular to a kind of transformer, especially with the transformer of shielding construction, further relate to a kind of leak source breaker including the transformer；Transformer of the present utility model includes coil block, the transformer shielding case being sleeved on outside coil block and the transformer casing being sleeved on outside transformer shielding case；The transformer casing includes upper half shell and the lower half shell coordinated with upper half shell；The transformer shielding case includes shading ring and the radome coordinated with shading ring；During assembling, the cage connection seam between the upper half shell and lower half shell, the shielding case connecting sewing between shading ring and radome shifts to install；RCCB of the present utility model includes the transformer；Transformer of the present utility model is simple in construction, the performance of shielding outside electromagnetic interference is good, and RCCB action of the present utility model is accurate.
Description
Technical field
It the utility model is related to Low Voltage Electrical Apparatus, and in particular to a kind of transformer, especially with the mutual of shielding construction
Sensor, further relate to a kind of RCCB including the transformer.
Background technology
Transformer is the significant components of RCCB, and existing transformer is primarily present problems with：
1. being not provided with shielding case, transformer is vulnerable to external electromagnetic signal interference, cause the breaker for including transformer
Malfunctioned by outside electromagnetic interference；
2. transformer sets transformer shielding case, and the cage connection of the shielding case connecting sewing of transformer and transformer stitches phase
(or pressing close to) is set, makes the degradation of transformer shielding case shielding outside electromagnetic interference.
The content of the invention
A kind of the defects of the purpose of this utility model is to overcome prior art, there is provided simple in construction, shielding external electromagnetic
The good transformer of the performance of interference and one kind act accurately RCCB.
To achieve the above object, the utility model employs following technical scheme：
A kind of transformer, its transformer shielding case and suit for including coil block 3, being sleeved on outside coil block 3
Transformer casing outside transformer shielding case；
The transformer casing includes upper half shell 12 and the lower half shell 11 coordinated with upper half shell 12；The transformer shielding
Shell includes shading ring 21 and the radome 22 coordinated with shading ring 21；During assembling, between the upper half shell 12 and lower half shell 11
Cage connection seam, the shielding case connecting sewing between shading ring 21 and radome 22 shifts to install.
Preferably, the shielding case connecting sewing of the transformer shielding case is annulus, coaxial with transformer；The mutual inductance
The cage connection seam of device shell is annulus, and the upper and lower side of cage connection seam is axially vertical with transformer.
Preferably, the shielding case connecting sewing of the transformer shielding case is located at its axial one end, the shell of transformer casing
Connecting sewing is located at its axially middle part and outside in the middle part of radome (22) axial direction.
Preferably, the shading ring 21 is annular slice structure, and the side of radome 22 sets annular opening, shading ring 21 with
Annular opening matches, and the holding of shading ring 21 forms the shielding cavity for accommodating coil block 3 in the openend of radome 22.
Preferably, the radome (22) includes radome annular bottom wall 223, and is separately positioned on radome annular bottom
The inner edge of wall 223 and the radome inner tube wall 222 of outer rim and radome outer tube wall 221, outside radome inner tube wall 222 and radome
Barrel 221 extends to the side of radome annular bottom wall 223 and is provided for the cabling of coil block 3 with height, radome outer tube wall 221
Radome wire casing 224；
The shading ring 21 includes ring body 211, the internal diameter of ring body 211, external diameter respectively with radome inner tube wall
The internal diameter matching of 222 external diameter, radome outer tube wall 221, the outer rim of ring body 211 protrude above setting and radome wire casing
The shading ring inserted sheet 212 that 224 matchings coordinate.
Preferably, the width of the radome wire casing 224 matches with the width of inserted sheet 212, the length of radome wire casing 224
>The length of shading ring inserted sheet 212.
Preferably, the upper half shell 12 includes upper half shell annular bottom wall 123, and is separately positioned on upper half shell annular bottom wall
123 inner edges, the upper half shell inner tube wall 122 extended to the homonymy of upper half shell annular bottom wall 123, the upper half shell outer tube wall 121 of outer rim, on
Half-shell outer tube wall 121 is provided for the shell wire casing 124 of the cabling of coil block 3；The lower half shell 11 includes lower half shell annular bottom
Wall 113, and be separately positioned on the inner edge of lower half shell annular bottom wall 113, outer rim to the homonymy of lower half shell annular bottom wall 113 extend
Lower half shell inner tube wall 112, lower half shell outer tube wall 111；
The internal diameter of the upper half shell annular bottom wall 123, external diameter the internal diameter external diameter phase with lower half shell annular bottom wall 113 respectively
Together, the internal diameter with lower half shell inner tube wall 112, external diameter are identical respectively for the internal diameter of upper half shell inner tube wall 122, external diameter, upper half shell outer barrel
The internal diameter with lower half shell outer tube wall 111, external diameter are identical respectively for internal diameter, the external diameter of wall 121.
Preferably, the upper half shell inner tube wall 122 and lower half shell inner tube wall 112 are highly identical, the He of upper half shell outer tube wall 121
Lower half shell outer tube wall 111 is highly identical.
Preferably, the ratio between axial width of the internal diameter of the transformer casing and transformer casing is 15：8.
Preferably, the upper half shell 12 is different with the color of lower half shell 11, and upper half shell 12 is corresponding with shading ring 21, lower half shell
11 is corresponding with radome 22.
Preferably, the first gap, transformer shielding case and line between transformer casing and the transformer shielding case be present
Coil assembly 3 it is outer between the second gap be present.
A kind of RCCB, including described transformer.
Transformer of the present utility model includes transformer shielding case, coil block is in the company of transformer shielding case formation
In continuous shielding space, maskable most outside electromagnetic interference, and the shielding case connecting sewing of transformer shielding case and
The cage connection seam of transformer casing shifts to install, and is advantageous to further improve transformer shielding external electromagnetic of the present utility model
The performance of interference, so as to ensure the accuracy of transformer sampling.In addition, the shielding case connecting sewing is annulus, with mutual inductance
Device is coaxial, cage connection seam be annulus, thereon/downside is axially vertical with transformer, shielding case connecting sewing and outside
The opening direction of shell connecting sewing is different, further improves the performance of the shielding outside electromagnetic interference of the utility model transformer；Institute
Stating shading ring includes shading ring inserted sheet, and radome includes radome wire casing, and shading ring inserted sheet and radome wire casing coordinate, shading ring
Inserted sheet can fill up radome wire casing aperture area, reduce radome wire casing and shield outside electromagnetic interference performance to transformer shielding case
Influence and from the leakage field at radome wire casing.RCCB of the present utility model can be avoided effectively because outside electromagnetic interference is sent out
The situation of raw malfunction.
Brief description of the drawings
Fig. 1 is the decomposition texture schematic diagram of the utility model transformer；
Fig. 2 is the structural representation of the utility model lower half shell；
Fig. 3 is the structural representation of the utility model upper half shell；
Fig. 4 is the structural representation of the utility model radome；
Fig. 5 is the structural representation of the utility model shading ring；
Fig. 6 is the assembling structure schematic diagram of the utility model transformer.
Embodiment
The embodiment provided below in conjunction with accompanying drawing 1-6, further illustrate the specific embodiment party of transformer of the present utility model
Formula.Transformer of the present utility model is not limited to the following description.
Transformer of the present utility model, its transformer shielding case for including coil block 3, being sleeved on outside coil block 3
And it is sleeved on the transformer casing outside transformer shielding case；The transformer casing includes upper half shell 12 and and upper half shell
12 lower half shells 11 coordinated；The transformer shielding case includes shading ring 21 and the radome 22 coordinated with shading ring 21；Dress
Timing, the cage connection seam between the upper half shell 12 and lower half shell 11, with the shielding case between shading ring 21 and radome 22
Connecting sewing, shift to install.
Problems be present more in existing transformer：1st, shielding case is not provided with, transformer easily by outside electromagnetic interference, is led
The breaker for including transformer is caused to be malfunctioned by electromagnetic signal interference；2nd, the shielding case connecting sewing of transformer and transformer
Cage connection seam relative (or pressing close to) is set, and the shielding case of transformer is shielded the degradation of outside electromagnetic interference.This practicality
New transformer, including transformer shielding case, coil block is set to be in the continuous shielding space of transformer shielding case formation
In, maskable most outside electromagnetic interference, and cage connection seam shifted to install with shielding case connecting sewing, be advantageous into
One step improves the performance of the shielding outside electromagnetic interference of transformer of the present utility model, so as to improve the accurate of transformer sampling
Property, and then the situation for avoiding the breaker for occurring to include transformer from malfunctioning.
Below with reference to the drawings and specific embodiments, transformer of the present utility model is described further.
A kind of as shown in figure 1, embodiment for transformer of the present utility model.
Direction as shown in Figure 1, transformer of the present utility model, including coil block 3, be sleeved on outside coil block 3
Transformer shielding case and the transformer casing being sleeved on outside transformer shielding case.
The coil block 3 include annular core, the coil windings that are wrapped on annular core and with coil windings phase
Connecting line even.The shielding that the transformer shielding case includes the shading ring 21 of annular slice structure and coordinated with shading ring 21
Cover 22, the upper end of radome 22 set annular opening, and shading ring 21 matches with the annular opening of radome 22 and holding is in radome
22 openend, radome 22 and shading ring 21 cooperatively form the continuous shielding cavity for accommodating coil block 3, radome 22
It is provided for the radome wire casing 224 of the cabling of coil block 3.The transformer casing includes upper half shell 12 and the downside of downside
The lower half shell 11 coordinated with upper half shell 12, the middle part of upper half shell 12 sets the annular groove that Open Side Down, and the middle part of lower half shell 11 is set
The annular groove of opening upwards, the annular groove of upper half shell 12 and the annular channel opening relative engagement of lower half shell 11 are formed for accommodating mutually
The annular accommodating chamber of sensor shielding case, upper half shell 12 are provided for the shell wire casing 124 of the cabling of coil block 3, shell wire casing 124
It is used cooperatively with radome wire casing 224.
During assembling, direction as shown in Figure 6, the holding of shading ring 21 makes shielding in the openend of the lower end of radome 22
Shielding case connecting sewing between ring 21 and radome 22 is located at the lower axial end of transformer shielding case, and shielding case connecting sewing is annular
Gap, it is coaxial with transformer；Upper half shell 12 and lower half shell 11 relative engagement, and be connected by adhesive tape 4, make transformer casing
Cage connection seam be located therein and on the outside of the middle part of transformer shielding case, cage connection seam is annulus, shell
The upper and lower side (i.e. housing upper half shell, lower half shell to form plane where the side of cage connection seam) of connecting sewing is and mutual inductance
Device it is axially vertical；The opening direction that the shielding case connecting sewing and cage connection are stitched is different, and shifts to install, and makes transformer
The performance of the shielding outside electromagnetic interference of shielding case is more preferable, ensure that the accuracy of transformer sampling.
It is pointed out that the position relationship of the shielding case connecting sewing and cage connection seam is not limited in above-mentioned implementation
Relation shown in example and Figure of description 6, the position deviation of the two is bigger, then is more advantageous to improve mutual inductance of the present utility model
The performance of the shielding outside electromagnetic interference of device shielding case；The upper half shell 12 can be not only connected with lower half shell 11 by adhesive tape 4,
It can also be connected by way of glue bonding, can also be connected using any achievable upper half shell 12 and lower half shell 11
The connected mode of prior art；The position of the radome wire casing 224 and shell wire casing 124 can also be adjusted as needed
It is whole, but need to meet the basic function for the cabling of coil block 3.
Preferably, as shown in fig. 6, the first gap, coil group between the transformer shielding case and transformer casing be present
The second gap between part 3 and transformer shielding case be present, two gaps are advantageous to further improve the utility model transformer screen
Cover the performance of the shielding outside electromagnetic interference of shell.
Each component parts of the present utility model is described further below with reference to the drawings and specific embodiments.
Direction as shown in Figure 4, the radome 22 of the transformer shielding case include radome annular bottom wall 223, Yi Jifen
The inner edge of radome annular bottom wall 223, the radome inner tube wall 222 of outer rim, radome outer tube wall 221, radome are not arranged on
Inner tube wall 222 and radome outer tube wall 221 upwardly extend by radome annular bottom wall 223, and the two is same high, radome inner cylinder
Wall 223 and radome outer tube wall 221 cooperatively form the annular groove for being arranged on the middle part of radome 22, internal diameter, the external diameter point of annular groove
Internal diameter, external diameter not with the ring body 211 of shading ring 21 match, and radome outer tube wall 221 is provided for the cabling of coil block 3
Radome wire casing 224.
As shown in figure 5, the shading ring 21 of the transformer shielding case includes ring body 211.
Preferably, as shown in figure 5, the outer rim protrusion of the ring body 211 of the shading ring 21 sets shading ring inserted sheet
212, the width of shading ring inserted sheet 212 matches with the width of the radome wire casing 224 of radome 22, the length of shading ring inserted sheet 212
Degree<The length of radome wire casing 224.The radome wire casing 224 and shading ring inserted sheet 212 coordinate, and first make the He of radome 22
The cooperation of shading ring 21 is more firm, furthermore forms position-limiting action to the connecting line of coil block 3, avoids connecting line and/or line
The unwanted movement of coil assembly cause the coil windings of coil block 3 enamel-covered wire depainting and or connecting line fracture, also shield
Ring inserted sheet 212 can fill up the aperture area of radome wire casing 224, so as to reduce leakage field and the external world at radome wire casing 224
Electromagnetic interference interference caused by the radome wire casing 224, is advantageous to further improve transformer shielding case of the present utility model
Shielding outside electromagnetic interference performance.
Preferably, the radome 22 can be connected with shading ring 21 by way of interference fit, it is of course also possible to pass through
The modes such as glue bonding connect.
Transformer shielding case of the present utility model is made up of shading ring 21 and radome 22, compared with prior art, can be shown
Write and reduce assembling gap, form the more continuous tight shielding cavity for being used to include coil block 3, coil block 3 is wrapped completely
It is rolled in inside transformer shielding case, the performance for shielding outside electromagnetic interference is more preferable.Further, the radome 22 and shading ring
21 mode for fitting through interference fit is realized, can avoid using glue, more environmentally-friendly, is also avoided because glue causes assembling to be stitched
The situation that gap becomes big occurs.
Direction as shown in Figure 3, the upper half shell 12 of the transformer casing include upper half shell annular bottom wall 123, and respectively
It is arranged on the inner edge of upper half shell annular bottom wall 123, the upper half shell inner tube wall 122 of outer rim, upper half shell outer tube wall 121, upper half shell inner cylinder
Wall 122 and upper half shell outer tube wall 121 upwardly extend by upper half shell annular bottom wall 123 and the two sets with height, the middle part of upper half shell 12
Annular groove is put, upper half shell outer tube wall 121 sets shell wire casing 124, is used for the radome wire casing 224 of radome 22
The cabling of coil block 3；Direction as shown in Figure 2, the lower half shell 11 of the transformer casing include lower half shell annular bottom wall 113, with
And it is separately positioned on the inner edge of lower half shell annular bottom wall 113, the lower half shell inner tube wall 112 of outer rim, lower half shell outer tube wall 111, lower half
Shell outer tube wall 111 and lower half shell inner tube wall 112 upwardly extend by lower half shell annular bottom wall 113 and the two is the same as high, lower half shell 11
Middle part sets annular groove.
Preferably, the internal diameter of the upper half shell annular bottom wall 123, the external diameter internal diameter with lower half shell annular bottom wall 113 respectively
External diameter is identical, and the internal diameter with lower half shell inner tube wall 112, external diameter are identical respectively for internal diameter, the external diameter of upper half shell inner tube wall 122, upper half
The internal diameter with lower half shell outer tube wall 111, external diameter are identical respectively for internal diameter, the external diameter of shell outer tube wall 121；The axial direction of the upper half shell 12
Thickness is identical with the axial width of lower half shell 11, i.e., described upper half shell inner tube wall 122 and lower half shell inner tube wall 112 are highly identical,
Upper half shell outer tube wall 121 and lower half shell outer tube wall 111 are highly identical.
Preferably, the upper half shell 12 and lower half shell 11 are made by the insulating materials of thickness uniformity.
Preferably, internal diameter (the i.e. internal diameter of upper half shell inner tube wall 122 or lower half shell inner tube wall 112 of the transformer casing
Internal diameter) the axial width H ratio of D and transformer casing is 15: 8.The size of above-mentioned transformer casing, it is high current specification
The current carrying conductor of breaker passes through in the middle part of transformer provides facility, and the thickness of shell of transformer casing can also be used as mutually
Sensor senses secondary.
Preferably, as shown in figure 1, the color difference (not shown) of the upper half shell 12 and lower half shell 11, upper half shell
12 are located at the side of coil block 3 with shading ring 21, and lower half shell 11 is located at the opposite side of coil block 3 with radome 22.At this
After the completion of the transformer assembling of utility model, the He of shading ring 21 can be judged by the color distinction of upper half shell 12 and lower half shell 11
The location of radome 22.
The assembly method of transformer of the present utility model is as follows：
(1) opening upwards of lower half shell 11 of the transformer casing are kept flat, shading ring 21 is then put into lower half shell 11
Annular groove in；
(2) coil block 3 is put into the annular groove of lower half shell 11；
(3) the radome wire casing 224 of the radome 22 is alignd with the shading ring inserted sheet 212 of shading ring 21, and by line
The connecting line of coil assembly 3 is put into radome wire casing 224, is then put into radome 22 in the annular groove of lower half shell 11, is made screen
Cover the openend that ring 21 is caught in radome 22 completely；
(4) the shell wire casing 124 of the upper half shell that Open Side Down 12 is alignd with radome wire casing 224, by coil group
The connecting line of part 3 is put into shell wire casing 124, and upper half shell 12 and lower half shell 11 is assembled, with adhesive tape 4 by upper half shell 12 with
Half-shell 11 sticks together.
RCCB of the present utility model, it includes transformer of the present utility model.
Above content is to combine specific preferred embodiment further detailed description of the utility model, it is impossible to
Assert that specific implementation of the present utility model is confined to these explanations.For the ordinary skill of the utility model art
For personnel, without departing from the concept of the premise utility, some simple deduction or replace can also be made, should all be regarded
To belong to the scope of protection of the utility model.
Claims (12)
1. a kind of transformer, it includes coil block (3), is sleeved on coil block (3) outside transformer shielding case and set
Transformer casing outside transformer shielding case；
It is characterized in that：The transformer casing includes upper half shell (12) and the lower half shell (11) coordinated with upper half shell (12)；
The transformer shielding case includes shading ring (21) and the radome (22) coordinated with shading ring (21)；During assembling, it is described on
Cage connection seam between half-shell (12) and lower half shell (11), the shielding case between shading ring (21) and radome (22) are connected
Seam shifts to install.
2. transformer according to claim 1, it is characterised in that：The shielding case connecting sewing of the transformer shielding case is ring
Shape gap, it is coaxial with transformer；The cage connection seam of the transformer casing be annulus, the upper and lower side that cage connection is stitched
It is axially vertical with transformer.
3. transformer according to claim 1, it is characterised in that：The shielding case connecting sewing of the transformer shielding case is located at
Its axial one end, the cage connection of transformer casing are stitched positioned at its axial direction middle part and outside the middle part of radome (22) axial direction
Side.
4. transformer according to claim 2, it is characterised in that：The shading ring (21) is annular slice structure, shielding
Cover (22) side and annular opening is set, shading ring (21) matches with annular opening, and shading ring (21) holding is in radome (22)
Openend, form the shielding cavity for accommodating coil block (3).
5. transformer according to claim 4, it is characterised in that：The radome (22) includes radome annular bottom wall
(223), and the inner edge of radome annular bottom wall (223) and the radome inner tube wall (222) of outer rim is separately positioned on and is shielded
Cover outer tube wall (221), radome inner tube wall (222) and radome outer tube wall (221) prolong to radome annular bottom wall (223) side
Stretch and be provided for the radome wire casing (224) of coil block (3) cabling with height, radome outer tube wall (221)；
The shading ring (21) includes ring body (211), the internal diameter of ring body (211), external diameter respectively with radome inner cylinder
The internal diameter matching of the external diameter, radome outer tube wall (221) of wall (222), the outer rim of ring body (211) protrude above setting and shielding
The shading ring inserted sheet (212) that cover wire casing (224) matching coordinates.
6. transformer according to claim 5, it is characterised in that：The width and inserted sheet of the radome wire casing (224)
(212) width matching, the length of radome wire casing (224)>The length of shading ring inserted sheet (212).
7. transformer according to claim 2, it is characterised in that：The upper half shell (12) includes upper half shell annular bottom wall
(123), and be separately positioned on upper half shell annular bottom wall (123) inner edge, outer rim is prolonged to upper half shell annular bottom wall (123) homonymy
Upper half shell inner tube wall (122), the upper half shell outer tube wall (121) stretched, upper half shell outer tube wall (121) are provided for coil block (3)
The shell wire casing (124) of cabling；The lower half shell (11) includes lower half shell annular bottom wall (113), and is separately positioned on lower half
Shell annular bottom wall (113) inner edge, outer rim to lower half shell annular bottom wall (113) homonymy extend lower half shell inner tube wall (112), under
Half-shell outer tube wall (111)；
The internal diameter of the upper half shell annular bottom wall (123), external diameter the internal diameter external diameter phase with lower half shell annular bottom wall (113) respectively
Together, the internal diameter of upper half shell inner tube wall (122), external diameter are identical with internal diameter, the external diameter of lower half shell inner tube wall (112) respectively, upper half shell
Internal diameter, the external diameter of outer tube wall (121) are identical with internal diameter, the external diameter of lower half shell outer tube wall (111) respectively.
8. transformer according to claim 7, it is characterised in that：The upper half shell inner tube wall (122) and lower half shell inner cylinder
Wall (112) is highly identical, and upper half shell outer tube wall (121) and lower half shell outer tube wall (111) are highly identical.
9. transformer according to claim 7, it is characterised in that：The internal diameter of the transformer casing and transformer casing
The ratio between axial width is 15: 8.
10. transformer according to claim 1, it is characterised in that：The upper half shell (12) and the color of lower half shell (11)
Difference, upper half shell (12) is corresponding with shading ring (21), and lower half shell (11) is corresponding with radome (22).
11. transformer according to claim 1, it is characterised in that：Between transformer casing and the transformer shielding case
In the presence of the first gap, transformer shielding case and coil block (3) it is outer between the second gap be present.
A kind of 12. RCCB, it is characterised in that：It includes any described transformers of claim 1-11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720878077.8U CN207082398U (en) | 2017-07-19 | 2017-07-19 | Transformer and RCCB |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720878077.8U CN207082398U (en) | 2017-07-19 | 2017-07-19 | Transformer and RCCB |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207082398U true CN207082398U (en) | 2018-03-09 |
Family
ID=61423849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720878077.8U Active CN207082398U (en) | 2017-07-19 | 2017-07-19 | Transformer and RCCB |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207082398U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109285658A (en) * | 2017-07-19 | 2019-01-29 | 浙江正泰电器股份有限公司 | Mutual inductor and leakage circuit breakers |
-
2017
- 2017-07-19 CN CN201720878077.8U patent/CN207082398U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109285658A (en) * | 2017-07-19 | 2019-01-29 | 浙江正泰电器股份有限公司 | Mutual inductor and leakage circuit breakers |
| CN109285658B (en) * | 2017-07-19 | 2024-05-14 | 浙江正泰电器股份有限公司 | Mutual inductor and leakage circuit breaker |
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