CN204577224U - Adopt the transformer of PU glue and epoxy glue composite filling - Google Patents
Adopt the transformer of PU glue and epoxy glue composite filling Download PDFInfo
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- CN204577224U CN204577224U CN201520259050.1U CN201520259050U CN204577224U CN 204577224 U CN204577224 U CN 204577224U CN 201520259050 U CN201520259050 U CN 201520259050U CN 204577224 U CN204577224 U CN 204577224U
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Abstract
The utility model relates to a kind of transformer adopting PU glue and epoxy glue composite filling, include iron core and the skeleton in this iron core outer wrapping, this framework ring is wound with the secondary wire bag of elementary line bag and at least one group, this skeleton makes the secondary wire bag of described elementary line bag and at least one group keep apart, it is characterized in that, be filled with PU glue embedding layer at the secondary wire bag of skeleton, elementary line bag and at least one group, PU glue embedding layer table upper surface is after hardening filled with epoxy glue embedding layer again.The beneficial effects of the utility model are: PU glue embedding layer after hardening covers transformer surface with epoxy adhesive layer again; avoid transformer faying face when hot environment or long-play come unstuck cracking situation; ensure that the class of insulation between each winding wire bag of transformer; transformer pin is protected because of the epoxy adhesive layer on surface; resistance to mechanical impact capacity is strengthened, and reduces product failure rate.
Description
Technical field
The utility model relates to a kind of transformer adopting PU glue and epoxy glue composite filling.
Background technology
The transformer body that existing transformer generally comprises shell and arranges in the enclosure, usually can leave space between the two, in the making field of use for electronic products transformer, the general canning means of transformer is:
First, adopt full epoxide-resin glue filling to carry out, this mode due to the adhesion of epoxy glue and engineering plastics (skeleton) poor, through hot environment or long-play can cause faying face come unstuck cracking phenomenon, seriously reduce the class of insulation between winding wire bag, increase the failure rate of product.
Second, adopt full PU glue filling, although viscosity, the adhesion of polyurethanes PU glue are all relatively good, but the case hardness of such glue is low, the resistance to mechanical impact capacity of transformer is declined, in transformer transporting, use procedure, in stitch stress deformation situation, easily makes inside transformer lead-out wires of coil rupture and cause losing efficacy, and filling bubble ratio is more, affect the presentation quality of product.
The single transformer taking above-mentioned any one mode filling, or because epoxide-resin glue adhesion is poor, transformer is when hot environment or long-play, and internal temperature rises, produce faying face to come unstuck cracking phenomena, cause the insulation property of transformer unstable; Or because inner urethane class PU glue case hardness is low, cause the resistance to mechanical impact capacity of transformer pin to decline, and filling bubble ratio is more, affects the presentation quality of product.Due to the more above-mentioned problem existed in actual conditions, and the product also do not addressed these problems at present or method occur, therefore truly have the necessity made improvements.
Utility model content
For the deficiencies in the prior art, the purpose of this utility model is to provide a kind of transformer adopting PU glue and epoxy glue composite filling, PU glue embedding layer after hardening covers transformer surface with epoxy adhesive layer again, avoid transformer faying face when hot environment or long-play come unstuck cracking situation, ensure that the class of insulation between each winding wire bag of transformer, the reinforcement of stitch resistance to mechanical impact capacity, reduces the failure rate of product.
The technical solution of the utility model is as follows:
A kind of transformer adopting PU glue and epoxy glue composite filling, include iron core and the skeleton in this iron core outer wrapping, this framework ring is wound with the secondary wire bag of elementary line bag and at least one group, this skeleton makes the secondary wire bag of described elementary line bag and at least one group keep apart, be filled with PU glue embedding layer at the secondary wire bag of skeleton, elementary line bag and at least one group, PU glue embedding layer table upper surface is after hardening filled with epoxy glue embedding layer again.
Above-mentioned employing PU glue and the transformer of epoxy glue composite filling, also include a shell, described iron core and skeleton are arranged in this shell, and described PU glue embedding layer is filling between this shell and iron core, skeleton, the periphery of described epoxy glue embedding layer makes described PU glue embedding layer be sealed in this shell.
Above-mentioned employing PU glue and the transformer of epoxy glue composite filling, also include some contact pins, and each described contact pin passes described epoxy glue seal layer and inserts described skeleton.
Above-mentioned employing PU glue and the transformer of epoxy glue composite filling, the thickness of described epoxy glue seal layer is 0.5 ~ 4cm.
Above-mentioned employing PU glue and the transformer of epoxy glue composite filling, the PU glue in described PU glue embedding layer is the adhesive of polyurethanes.
Above-mentioned employing PU glue and the transformer of epoxy glue composite filling, the epoxy glue in described epoxy glue embedding layer is epoxy resin.
The beneficial effects of the utility model are:
(1) the PU glue embedding layer after solidification covers transformer surface with epoxy adhesive layer again, avoid transformer faying face when high temperature or long-play come unstuck cracking situation, ensure that the class of insulation between each winding wire bag of transformer, transformer pin is protected because of the epoxy adhesive layer on surface, resistance to mechanical impact capacity is strengthened, and reduces product failure rate;
(2) first PU glue pouring process trickling property is good, with the good bonding strength of plastic, enamelled wire;
(3) failure rate of product is greatly reduced;
(4) make the bubble effusion after first filling PU glue in the process of layering embedding, make the air content of its inside reach minimum, and the case hardness of transformer and fineness are all greatly improved.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure:
1-iron core; 2-skeleton; The elementary line bag of 3-; 4-secondary wire bag; 5-PU glue embedding layer; 6-epoxy sealing layer; 7-shell; 8-contact pin.
Embodiment
The following description and drawings illustrate specific embodiments of the present utility model fully, to enable those skilled in the art to put into practice them.Embodiment only represents possible change.Unless explicitly requested, otherwise independent parts and function are optional, and the order of operation can change.The part of some embodiments and feature can be included in or replace part and the feature of other embodiments.The scope of embodiment of the present utility model comprises the gamut of claims, and all obtainable equivalent of claims.In this article, these embodiments of the present utility model can be represented with term " utility model " individually or always, this is only used to conveniently, and if in fact disclose the utility model more than, be not the scope that automatically will limit this application be any single utility model or utility model design.
As shown in Figure 1, the transformer of employing PU glue described in the utility model and epoxy glue composite filling, it mainly includes iron core 1, skeleton 2, elementary line bag 3, the secondary wire bag 4 of at least one and the shell 7 for wrapping up installation former components.
Described iron core 1 is wrapped with described skeleton 2, and be two at the groove of this skeleton 2(skeleton as described in Figure 1, other embodiments or be 3 and more than) be surrounded with the secondary wire bag 4 of elementary line bag 3 and at least one group, this skeleton 2 makes the secondary wire bag 4 of described elementary line bag 3 and at least one group keep apart, be placed in the both sides that described iron core 1 is contrary respectively, at skeleton 2, secondary wire bag 4 and the described iron core 1 of elementary line bag 3 and at least one group are enclosed with PU glue embedding layer 5, and this PU glue embedding layer 5 all connects at described shell 7 and with the inwall of described shell 7, namely described PU glue embedding layer 5 is filling in this shell 7 and iron core 1, between skeleton 2, PU glue embedding layer 5 after solidization is shown upper surface (i.e. the seal location place of described shell 7) and is again filled with epoxy glue embedding layer 6, the periphery of described epoxy glue embedding layer 6 connects with described shell 7, be sealed in this shell to make described PU glue embedding layer.
Further, also include some contact pins 8, each described contact pin 8 inserts described skeleton 2 through described epoxy glue seal layer 6.
Further, the thickness of described epoxy glue seal layer 6 is 0.5 ~ 4cm.
Further, PU glue in described PU glue embedding layer is the adhesive of polyurethanes, and epoxy glue is take epoxy resin as the adhesive that main body obtains, and those skilled in the art should learn, it should include curing agent, otherwise embedding layer 5, embedding layer 6 can not solidify under normal conditions.
Above-described embodiment is only for clearly illustrating that the utility model creates example, and the restriction not to the utility model embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all execution modes.All within spirit of the present utility model and principle any apparent change of extending out or variation be still among the protection range of this claim.
Claims (6)
1. one kind adopts the transformer of PU glue and epoxy glue composite filling, include iron core and the skeleton in this iron core outer wrapping, this framework ring is wound with the secondary wire bag of elementary line bag and at least one group, this skeleton makes the secondary wire bag of described elementary line bag and at least one group keep apart, it is characterized in that, be filled with PU glue embedding layer at the secondary wire bag of skeleton, elementary line bag and at least one group, PU glue embedding layer table upper surface is after hardening filled with epoxy glue embedding layer again.
2. the transformer adopting PU glue and epoxy glue composite filling as claimed in claim 1, it is characterized in that, also include a shell, described iron core and skeleton are arranged in this shell, and described PU glue embedding layer is filling between this shell and iron core, skeleton, the periphery of described epoxy glue embedding layer makes described PU glue embedding layer be sealed in this shell.
3. the transformer adopting PU glue and epoxy glue composite filling as claimed in claim 2, is characterized in that, also include some contact pins, and each described contact pin passes described epoxy glue seal layer and inserts described skeleton.
4. the transformer adopting PU glue and epoxy glue composite filling as claimed in claim 3, it is characterized in that, the thickness of described epoxy glue seal layer is 0.5 ~ 4cm.
5. the transformer adopting PU glue and epoxy glue composite filling as claimed in claim 1, it is characterized in that, the PU glue in described PU glue embedding layer is the adhesive of polyurethanes.
6. the transformer adopting PU glue and epoxy glue composite filling as claimed in claim 1, it is characterized in that, the epoxy glue in described epoxy glue embedding layer is epoxy resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520259050.1U CN204577224U (en) | 2015-04-27 | 2015-04-27 | Adopt the transformer of PU glue and epoxy glue composite filling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520259050.1U CN204577224U (en) | 2015-04-27 | 2015-04-27 | Adopt the transformer of PU glue and epoxy glue composite filling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204577224U true CN204577224U (en) | 2015-08-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520259050.1U Expired - Fee Related CN204577224U (en) | 2015-04-27 | 2015-04-27 | Adopt the transformer of PU glue and epoxy glue composite filling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204577224U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105810418A (en) * | 2016-05-05 | 2016-07-27 | 上海兆启新能源科技有限公司 | High-voltage high-frequency transformer with single-phase high-power special insulation structure |
| CN105810391A (en) * | 2016-05-05 | 2016-07-27 | 上海兆启新能源科技有限公司 | Composite encapsulating structure for high-frequency electrical product |
-
2015
- 2015-04-27 CN CN201520259050.1U patent/CN204577224U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105810418A (en) * | 2016-05-05 | 2016-07-27 | 上海兆启新能源科技有限公司 | High-voltage high-frequency transformer with single-phase high-power special insulation structure |
| CN105810391A (en) * | 2016-05-05 | 2016-07-27 | 上海兆启新能源科技有限公司 | Composite encapsulating structure for high-frequency electrical product |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150819 Termination date: 20210427 |
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| CF01 | Termination of patent right due to non-payment of annual fee |