CN211980340U - Insulating structure of foot pad and bottom of case - Google Patents
Insulating structure of foot pad and bottom of case Download PDFInfo
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- CN211980340U CN211980340U CN202020823397.5U CN202020823397U CN211980340U CN 211980340 U CN211980340 U CN 211980340U CN 202020823397 U CN202020823397 U CN 202020823397U CN 211980340 U CN211980340 U CN 211980340U
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- insulating part
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Abstract
The utility model belongs to the technical field of the transformer is used, a fill up foot and insulating structure of bottom of the case is disclosed. The utility model comprises a pad foot which is arranged at the bottom of the tank and fixed at the lower end of the transformer, a first insulating part is arranged between the pad foot and the tank bottom, the tank bottom is connected with the pad foot through a plurality of locking parts, and each locking part is connected in the pad foot after sequentially penetrating through the tank bottom and the first insulating part; and a second insulating part is arranged between each locking part and the pad foot. The utility model discloses set up first insulating part between the foot of filling up and the bottom of the case, guarantee except that other structures of location department fill up between foot and the bottom of the case and can realize safe insulating, realize the location to filling up the foot through the retaining member, then realize retaining member and fill up the safe insulating between the foot through the second insulating part to realized filling up the safe insulating between foot and the bottom of the case on the basis of guaranteeing the location, overall structure is simple, simple to operate, it is effectual to insulate to keep apart.
Description
Technical Field
The utility model belongs to the technical field of the transformer is used, concretely relates to pad foot and insulating structure of bottom of the case.
Background
When the metal parts in the transformer are grounded at multiple points, circulation currents are generated in the metal parts under the action of leakage flux induced voltage, the metal parts generate heat, and even the insulation of the transformer can be damaged. In addition, the paint on the surface of the metal part may not completely contact the grounding point, so that the floating potential may generate a low-energy discharge phenomenon.
In order to avoid the above transformer faults caused by unreliable grounding or multipoint grounding, it is necessary to ensure that metal parts inside the transformer are grounded at one point. However, for the situation that the connection between the upper positioning piece and the oil tank is grounded in the 35kV new energy transformer, no method for solving the above problems exists at present.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems existing in the prior art, the utility model aims to provide a structure with insulating pad feet and box bottom.
The utility model discloses the technical scheme who adopts does:
a structure with insulating pad feet and a box bottom comprises the pad feet which are arranged on the box bottom and fixed at the lower end of a transformer, wherein a first insulating part is arranged between the pad feet and the box bottom, the box bottom is connected with the pad feet through a plurality of locking parts, and each locking part penetrates through the box bottom and the first insulating part in sequence and then is connected into the pad feet; and a second insulating part is arranged between each locking part and the pad foot.
Further preferred, the second insulating part is the cylindric structure that the middle part was provided with the through-hole, and the lower extreme of second insulating part is connected with first insulating part, and stability is better like this, as long as the second insulating part aims at the hole on the pad foot during the installation can convenient installation retaining member for it is more convenient to install.
It is further preferable that the outer diameter of the lower portion of the second insulating member is larger than the outer diameter of the upper portion of the second insulating member, so that the stability of the second insulating member can be ensured, and the second insulating member is limited between the foot pad and the box bottom or between the foot pad and the first insulating member, and there is no fear that the sliding of the second insulating member or the like affects the installation of the locking member.
Still further preferably, the foot pad is provided with a first mounting hole matched with the shape of the second insulating piece, the second insulating piece is mounted in the first mounting hole in a matching manner, and the second insulating piece and the first mounting hole are correspondingly arranged, so that the mounting is more accurate and convenient.
Still further preferably, be provided with the second mounting hole on the first insulating part, be provided with the third mounting hole on the foot pad of second mounting hole top, the lower part of second insulating part is matchd installs in the second mounting hole, the upper portion of second insulating part is matchd installs in the third mounting hole, can be so that the installation more accurate and convenient, also can make simultaneously because the mutual spacing effect of second insulating part stroke between foot pad and the first insulating part, stability is better.
Still further preferably, the retaining member is a set screw. The positioning screw has the advantages of simple structure, low cost and mature technology, and can play a good positioning role.
Still further preferably, retaining member and second insulating part threaded connection, threaded connection's mode is firm, and stability is good simultaneously, even the box removes, the second insulating part also can be as a spacing of retaining member, guarantees the stability of retaining member.
Still further preferably, the upper end of the locking member is in threaded connection with a third insulating member, the third insulating member abuts against the upper end of the foot pad, and the outer diameter of the upper portion of the third insulating member is larger than that of the upper portion of the second insulating member. The connection of third insulating part can play retaining member and fill up the insulation between the foot firstly, secondly can play a limiting displacement to the retaining member for box, fill up foot and first insulating part remain stable under the linkage of retaining member and third insulating part all the time, can not receive influences such as transport.
It is further preferred that the third insulating member and the second insulating member are insulating sleeves. The insulating sleeve is simple in structure and good in stability, and can ensure that the pad foot and the locking piece are isolated.
Still further preferably, the first insulating member is an electrically insulating cardboard. The electric insulation paper board is an electrical paper board for motors, electric appliances, instruments, switch transformers and other components, has good insulativity, heat resistance, durability and the like, and can ensure the service life of the electric insulation paper board.
The utility model has the advantages that:
the utility model discloses set up first insulating part between the foot of filling up and the bottom of the case, guarantee except that other structures of location department fill up between foot and the bottom of the case and can realize safe insulating, realize the location to filling up the foot through the retaining member, then realize retaining member and fill up the safe insulating between the foot through the second insulating part to realized filling up the safe insulating between foot and the bottom of the case on the basis of guaranteeing the location, overall structure is simple, simple to operate, it is effectual to insulate to keep apart.
Drawings
FIG. 1 is a schematic view of the present invention without a third insulator;
FIG. 2 is a partial sectional view of the second embodiment of FIG. 1 with portion A enlarged;
FIG. 3 is a partial sectional view of the embodiment III taken at the enlarged portion A in FIG. 1;
FIG. 4 is a partial sectional view of the fifth embodiment of FIG. 1 with part A enlarged;
fig. 5 is a schematic view of the third insulator of the present invention in a configuration;
fig. 6 is a partial sectional view of fig. 1 with portion B enlarged.
In the figure: 1-box bottom; 2-foot pad; 3-a first insulator; 4-a locking member; 5-a second insulator; 6-third insulation.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be briefly described below with reference to the accompanying drawings and the description of the embodiments or the prior art, and it is obvious that the following description of the structure of the accompanying drawings is only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without any inventive work.
The technical solution provided by the present invention will be described in detail by way of embodiments with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto.
In some instances, some embodiments are not described or not in detail, as they are conventional or customary in the art.
Furthermore, the technical features described herein, or the steps of all methods or processes disclosed, may be combined in any suitable manner in one or more embodiments, in addition to the mutually exclusive features and/or steps. It will be readily appreciated by those of skill in the art that the order of the steps or operations of the methods associated with the embodiments provided herein may be varied. Any order in the drawings and examples is for illustrative purposes only and does not imply that a certain order is required unless explicitly stated to be required.
The numbering of the components as such, e.g., "first", "second", etc., is used herein only to distinguish the objects as described, and does not have any sequential or technical meaning. The terms "connected" and "coupled" when used in this application, encompass both direct and indirect connections (and couplings) where appropriate and where not necessary contradictory.
The first embodiment is as follows:
as shown in fig. 1, the structure for insulating a foot pad from a tank bottom of the present embodiment includes a foot pad 2 disposed on the tank bottom 1 and fixed to a lower end of a transformer, a first insulating member 3 is disposed between the foot pad 2 and the tank bottom 1, the tank bottom 1 is connected to the foot pad 2 through a plurality of locking members 4, and each locking member 4 sequentially penetrates through the tank bottom 1 and the first insulating member 3 and then is connected to the inside of the foot pad 2; a second insulating part 5 is arranged between each locking part 4 and the foot pad 2.
The utility model discloses set up first insulating part 3 between pad foot 2 and the bottom of the case 1, guarantee except that other structures of location department pad foot 2 and the bottom of the case 1 between can realize safe insulation, realize the location to pad foot 2 through retaining member 4, then realize retaining member 4 and the safe insulation between pad foot 2 through second insulating part 5, thereby realized the safe insulation between pad foot 2 and the bottom of the case 1 on the basis of guaranteeing the location, overall structure is simple, high durability and convenient installation, it is effectual to insulate to keep apart.
Example two:
the present embodiment is a further improvement on the basis of the first embodiment, and specific differences between the present embodiment and the first embodiment are as follows:
it should be further noted that, as shown in fig. 2, the second insulating member 5 is a cylindrical structure with a through hole at the middle, and the lower end of the second insulating member 5 is connected to the first insulating member 3. It should be noted that, the connection structure that second insulating member 5 and first insulating member 3 formula as an organic whole is preferred in the circumstances of this embodiment, and stability is better like this, and as long as the second insulating member aims at the hole on the pad foot 2 during the installation can be convenient installation retaining member 4 for it is more convenient to install.
Example three:
the present embodiment is a further improvement on the basis of the first embodiment, and specific differences between the present embodiment and the first embodiment are as follows:
it should be further noted that in the embodiment, as shown in fig. 3, the outer diameter of the lower portion of the second insulating member 5 is larger than the outer diameter of the upper portion of the second insulating member 5, so that the stability of the second insulating member 5 can be ensured, and the second insulating member 5 is limited between the foot pad 2 and the box bottom 1, or between the foot pad 2 and the first insulating member 3, and there is no fear that the sliding of the second insulating member 5 and the like affects the installation of the locking member 4. It should be further noted that the outer diameter in this embodiment may be an outer diameter of a cylindrical frustum structure, an outer diameter of a conical frustum structure, or the like, or may be a diameter of an circumscribed circle of a polygonal main body, and the specific shape of the second insulating member 5 is not limited.
Example four:
the present embodiment is a further improvement made on the basis of any one of the first to third embodiments, and the specific differences between the present embodiment and any one of the first to third embodiments are as follows:
it needs to be further explained in this embodiment that the first mounting hole matched with the shape of the second insulating member 5 is formed in the pad 2, the second insulating member 5 is mounted in the first mounting hole in a matching manner, and the second insulating member 5 and the first mounting hole are correspondingly arranged, so that the mounting is more accurate and convenient.
Example five:
the present embodiment is a further improvement made on the basis of any one of the first to third embodiments, and the specific differences between the present embodiment and any one of the first to third embodiments are as follows:
it should be further described in this embodiment that, as shown in fig. 4, a second mounting hole is disposed on the first insulating member 3, a third mounting hole is disposed on the foot pad 2 above the second mounting hole (the third mounting hole here can also be said to be the first mounting hole in the fourth embodiment, but the mounting manner of the second insulating member 5 is different, so the nomenclature is different), the lower portion of the second insulating member 5 is mounted in the second mounting hole in a matching manner, and the upper portion of the second insulating member 5 is mounted in the third mounting hole in a matching manner, so that the mounting is more accurate and convenient, and meanwhile, the stability is better because the stroke of the second insulating member 5 is limited mutually between the foot pad 2 and the first insulating member 3.
Example six:
the present embodiment is a further improvement made on the basis of any one of the first to fifth embodiments, and the specific differences between the present embodiment and any one of the first to fifth embodiments are as follows:
in this embodiment, it should be further noted that the locking member 4 is a set screw. The positioning screw has the advantages of simple structure, low cost and mature technology, and can play a good positioning role.
Example seven:
the present embodiment is a further improvement made on the basis of any one of the first to sixth embodiments, and the specific differences between the present embodiment and any one of the first to sixth embodiments are:
it needs to be further explained in this embodiment that, retaining member 4 and second insulator 5 threaded connection, threaded connection's mode is firm, and stability is good simultaneously, even the box removes, second insulator 5 also can be as retaining member 4's a spacing, guarantees retaining member 4's stability.
Example eight:
the present embodiment is a further improvement made on the basis of any one of the first to seventh embodiments, and the specific differences between the present embodiment and any one of the first to seventh embodiments are as follows:
in this embodiment, as shown in fig. 5 and 6, a third insulating member 6 is screwed to the upper end of the locking member 4, the third insulating member 6 abuts against the upper end of the foot pad 2, and the outer diameter of the upper portion of the third insulating member 6 is greater than the outer diameter of the upper portion of the second insulating member 5. The connection of third insulating part 6 can play retaining member 4 and fill up the insulation between the foot 2 firstly, secondly can play a limiting displacement to retaining member 4 for box, fill up foot 2 and first insulating part 3 remain stable under the joint action of retaining member 4 and third insulating part 6 all the time, can not receive influences such as transport.
Example nine:
the present embodiment is a further improvement on the basis of the eighth embodiment, and specific differences between the present embodiment and the eighth embodiment are:
in this embodiment, it should be further noted that the third insulating member 6 and the second insulating member 5 are both insulating sleeves. The insulating sleeve is simple in structure and good in stability, and can ensure that the foot pad 2 and the locking piece are isolated.
Example ten:
the present embodiment is a further improvement made on the basis of any one of the first to ninth embodiments, and a specific difference between the present embodiment and any one of the first to ninth embodiments is:
in this embodiment, it should be further explained that the first insulating member 3 is an electrically insulating paperboard. The electric insulation paper board is an electrical paper board for motors, electric appliances, instruments, switch transformers and other components, has good insulativity, heat resistance, durability and the like, and can ensure the service life of the electric insulation paper board.
The present invention is not limited to the above-mentioned optional embodiments, and any other products in various forms can be obtained by anyone under the teaching of the present invention, and any changes in the shape or structure thereof, all the technical solutions falling within the scope of the present invention, are within the protection scope of the present invention.
Claims (10)
1. The utility model provides a structure that foot pad and bottom of case are insulating which characterized in that: the transformer box comprises a box bottom (1) and a pad foot (2) fixed at the lower end of the transformer, wherein a first insulating part (3) is arranged between the pad foot (2) and the box bottom (1), the box bottom (1) is connected with the pad foot (2) through a plurality of locking parts (4), and each locking part (4) penetrates through the box bottom (1) and the first insulating part (3) in sequence and then is connected into the pad foot (2); a second insulating part (5) is arranged between each locking part (4) and the foot pad (2).
2. The structure of claim 1, wherein the foot pad is insulated from the bottom of the box, and the structure comprises: the second insulating part (5) is of a cylindrical structure with a through hole in the middle, and the lower end of the second insulating part (5) is connected with the first insulating part (3).
3. The structure of claim 1, wherein the foot pad is insulated from the bottom of the box, and the structure comprises: the outer diameter of the lower part of the second insulating part (5) is larger than that of the upper part of the second insulating part (5).
4. The structure of claim 3 for insulating a foot pad from a box bottom, characterized in that: the pad foot (2) is provided with a first mounting hole matched with the appearance of the second insulating piece (5), and the second insulating piece (5) is mounted in the first mounting hole in a matching mode.
5. The structure of claim 3 for insulating a foot pad from a box bottom, characterized in that: the first insulating part (3) is provided with a second mounting hole, the pad foot (2) above the second mounting hole is provided with a third mounting hole, the lower part of the second insulating part (5) is mounted in the second mounting hole in a matching mode, and the upper part of the second insulating part (5) is mounted in the third mounting hole in a matching mode.
6. A structure of insulating foot pad from box bottom according to any of claims 1-5, characterized in that: the locking piece (4) is a positioning screw.
7. The structure of claim 6, wherein the foot pad is insulated from the bottom of the box, and the structure comprises: the locking piece (4) is in threaded connection with the second insulating piece (5).
8. The structure of claim 6, wherein the foot pad is insulated from the bottom of the box, and the structure comprises: the upper end threaded connection of retaining member (4) has third insulating part (6), third insulating part (6) and the upper end looks butt of pad foot (2), and the external diameter on third insulating part (6) upper portion is greater than the external diameter on second insulating part (5) upper portion.
9. The structure of claim 8, wherein the foot pad is insulated from the bottom of the box, and the structure comprises: and the third insulating part (6) and the second insulating part (5) are both insulating sleeves.
10. The structure of claim 1, wherein the foot pad is insulated from the bottom of the box, and the structure comprises: the first insulating part (3) is an electric insulating paperboard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020823397.5U CN211980340U (en) | 2020-05-15 | 2020-05-15 | Insulating structure of foot pad and bottom of case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020823397.5U CN211980340U (en) | 2020-05-15 | 2020-05-15 | Insulating structure of foot pad and bottom of case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211980340U true CN211980340U (en) | 2020-11-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020823397.5U Active CN211980340U (en) | 2020-05-15 | 2020-05-15 | Insulating structure of foot pad and bottom of case |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211980340U (en) |
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2020
- 2020-05-15 CN CN202020823397.5U patent/CN211980340U/en active Active
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