CN106783030B - A kind of network transformer shell, network transformer and its manufacturing method - Google Patents
A kind of network transformer shell, network transformer and its manufacturing method Download PDFInfo
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- CN106783030B CN106783030B CN201611257299.4A CN201611257299A CN106783030B CN 106783030 B CN106783030 B CN 106783030B CN 201611257299 A CN201611257299 A CN 201611257299A CN 106783030 B CN106783030 B CN 106783030B
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- shell
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/02—Casings
- H01F27/04—Leading of conductors or axles through casings, e.g. for tap-changing arrangements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/29—Terminals; Tapping arrangements for signal inductances
- H01F27/292—Surface mounted devices
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/10—Connecting leads to windings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
- H01R13/405—Securing in non-demountable manner, e.g. moulding, riveting
- H01R13/415—Securing in non-demountable manner, e.g. moulding, riveting by permanent deformation of contact member
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/20—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for assembling or disassembling contact members with insulating base, case or sleeve
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R2201/00—Connectors or connections adapted for particular applications
- H01R2201/22—Connectors or connections adapted for particular applications for transformers or coils
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Coils Or Transformers For Communication (AREA)
- Coils Of Transformers For General Uses (AREA)
Abstract
The present invention relates to a kind of network transformer shell, network transformer and its manufacturing methods, belong to network transformer technical field, network transformer shell includes the housing main body being made by thermosetting property fire proofing, the housing main body is in lid-like, the housing main body includes side wall of outer shell, the side wall of outer shell is provided with PIN foot installing blind on the end face of opening, it further include conductive PIN foot, one end of the PIN foot is inserted into the PIN foot mounting hole, and the PIN foot and the PIN foot mounting hole are interference fit.By the way that one end of the PIN foot is inserted into the PIN foot mounting hole, the manufacturing process of whole network transformer shell only needs the step of injection molding and grafting that can complete, the rear welding sequence that follow-up bank enters magnetic core can automated execution, reduce production process, production procedure is simplified, production efficiency is substantially increased.
Description
Technical field
The present invention relates to network transformer technical field, especially a kind of network transformer shell, network transformer and its
Manufacturing method.
Background technology
Existing network transformer shell is as shown in fig. 1, including shell 1 and PIN foot 2, wherein PIN foot 2 becomes in network
It is shown as two rows of in depressor finished product, PIN foot 2 is by the way that in injection molding insertion shell 1, manufacturing process is:It is at a right angle by punching press
PIN foot 2 → place the raw material of PIN foot 2 and shell 1 together injection mould completion be molded → remove injection moulding regrinding → sandblasting unhairing
Thorn → and again by 2 bending of PIN foot, it cuts off more PIN → plating → and breaks interior PIN → completion shell production.Entire production process is more
Complexity, there are many process, inefficiency.
Invention content
A kind of network transformer shell of present invention offer, network transformer and its manufacturing method are become with solving above-mentioned network
The technical issues of depressor shell complex procedures, inefficiency.
In order to solve the above technical problem, the present invention provides a kind of network transformer shells, including by the fire-retardant material of thermosetting property
Expect the housing main body being made, the housing main body is box-like in open at one end, further includes PIN foot, the housing main body packet
Side wall of outer shell is included, the side wall of outer shell is provided with PIN foot mounting hole on the end face of open-mouth;One end of the PIN foot is inserted into
In the PIN foot mounting hole, the PIN foot and the PIN foot mounting hole are interference fit.
The beneficial effects of the invention are as follows:By the way that one end of the PIN foot is inserted into the PIN foot mounting hole, entire net
The manufacturing process of network transformer only needs the step of injection molding and grafting that can complete, and reduces production process, simplifies production
Flow substantially increases production efficiency;Meanwhile it being plugged rear notch end face direct plating tin, and whole plating is not gone again, it is originally whole
It has been electroplated and has broken disconnected extra PIN foot, wasted copper material and plated material, completed network transformer shell production process and be much less;
Copper material reduces 4 times or more;Especially Hi-pot test is done performing network transformer, it, will not be as existing because of only row's PIN foot
Two rows of PIN foot play electric arc like that, improve the electrical safety performance of network transformer.Since the PIN foot and the PIN foot are installed
Hole is interference fit, it is ensured that the fastness of PIN foot and housing main body installation, during the use of network transformer shell not
It will appear loosening and obscission, very reliably.
Further, the interference volume of the minor diameter fit of the outer diameter of the PIN foot and the PIN foot mounting hole be 0.005mm extremely
0.02mm。
Advantageous effect using above-mentioned further scheme is:Due to the housing main body of network transformer be usually used it is anti-quiet
Electrically insulating plastic material is made, and hardness and strength are higher;PIN foot generally uses conductive metal material, is inserted to reach the two
Rear higher reliability and fastness are connect, interference volume between the two is 0.005mm to 0.02mm, it can be ensured that the two can be just
While normal grafting, additionally it is possible to ensure the fastness connected between the two;Use the network transformation of this dimensional tolerance cooperation production
Device shell, after completing, PIN foot is not the phenomenon that the outer force effect PIN foot that can bear 9N has loose or dislocation.
Further, it is PIN foot inserting section that the PIN foot, which is inserted into the part in the PIN foot mounting hole, and the PIN foot is inserted
It connects and is provided with limit section in section, there are four sides for the limit section tool, including protrude from two of PIN foot inserting section side
Raised side and two recess sides for being depressed in PIN foot inserting section side.
Advantageous effect using above-mentioned further scheme is:Section, including two raised sides and two are limited by setting
Be recessed side, since housing main body is injection molding, has certain ductility, when PIN foot inserting section is inserted into PIN foot
When in mounting hole so that the plastics that PIN foot mounting hole is contacted with two recess sides are embedded in two recess sides, two protrusions
Side is embedded in the plastics of PIN foot mounting hole, and PIN foot inserting section forms mutually nested structure with PIN foot mounting hole, further carries
The high fastness and reliability of PIN foot and housing main body grafting.
Further, two raised sides are oppositely arranged, and two recess sides are oppositely arranged.
Advantageous effect using above-mentioned further scheme is:Raised side is oppositely arranged so that PIN foot inserting section is in PIN
Back-off position balance setting in foot mounting hole, stress are more uniform.
Further, the limit section is multiple, and multiple limit sections are alternate to be arranged in the PIN foot inserting section, multiple
Raised side and recess side in the limit section are arranged alternately on PIN foot inserting section same side.
Advantageous effect using above-mentioned further scheme is:Limit section is set as multiple so that PIN foot inserting section and PIN
The back-off power of foot mounting hole is multiplied, and fastness is more preferable, reliability higher;Raised side and recess side are in the PIN foot
Inserting section is arranged alternately on same side so that back-off power is more balanced.
Further, the raised side protrude from the side of the PIN foot inserting section protrusion height be 0.1mm extremely
0.2mm。
Advantageous effect using above-mentioned further scheme is:The protrusion height of raised side is 0.1mm to 0.2mm, is convenient for
Raised side is embedded in the plastics of housing main body, meanwhile, it can also play good fixed function.
Further, it is described recess side be depressed in the PIN foot inserting section side cup depth be 0.05mm extremely
0.1mm。
Advantageous effect using above-mentioned further scheme is:It is limited since the hardness of the plastics of housing main body is less than in PIN foot
The hardness of position section;By the squeezing action of raised side, the plastics of housing main body are expressed to the modeling of the recess of recess side
The protrusion part that doses does not have raised side is more, while also further improving what limit section was connected with PIN foot mounting hole
Tightness degree.
Further, the limit section is structure as a whole with the PIN foot inserting section.
Advantageous effect using above-mentioned further scheme is:The limit section is structure as a whole with the PIN foot inserting section,
Improve the rigidity and fastness of PIN foot.
The present invention also provides a kind of network transformer, including shell and coil, the shell is above-mentioned network transformer
Shell, the coil are arranged in the housing main body, and the coil has the bonding wire end for being welded with PIN foot, described
Bonding wire end is welded in the PIN foot.
Effective effect of inventive network transformer is:The manufacturing process of whole network transformer only needs injection molding and grafting
The step of can complete, reduce production process, simplify production procedure, substantially increase production efficiency;Meanwhile after being plugged
Notch end face direct plating tin, not go whole plating again, and originally whole be electroplated breaks disconnected extra PIN foot, wastes copper material and electricity
Material is plated, network transformer shell production process is completed and is much less;Copper material reduces 4 times or more;Especially performing network transformation
Device will do Hi-pot test, because of only row's PIN foot, will not play electric arc as existing two rows of PIN foot, improve network transformer
Electrical safety performance.Since the PIN foot and the PIN foot mounting hole are interference fit, it is ensured that PIN foot and housing main body
The fastness of installation, is not in loosening and obscission during the use of network transformer shell, very reliably.
The present invention also provides a kind of manufacturing methods of network transformer shell, include the following steps:
Step 1: by housing main body injection molding, PIN foot mounting hole is formed;
Casing assembly is formed Step 2: one end of PIN foot is inserted into PIN foot mounting hole on automatic needle inserting machine, it is described
PIN foot and the inserting pressure of the PIN foot mounting hole are 10N to 40N;
Step 3: coil to be put into the casing assembly inserted, the bonding wire end of coil is wrapped in PIN foot, and leads to
The mode for crossing immersed solder is tin plating at the winding of PIN foot.
The advantageous effect of manufacturing method of the present invention is:By the way that the PIN foot mounting hole is inserted into one end of the PIN foot
Interior, the step of manufacturing process of whole network transformer only needs injection molding and grafting, can complete, and reduce production process, simple
Change production procedure, substantially increases production efficiency;Meanwhile it being plugged rear notch end face direct plating tin, whole plating is not gone again,
Originally whole be electroplated breaks disconnected extra PIN foot, wastes copper material and plated material, completes network transformer shell production process and subtracts
It is few very much.
Description of the drawings
Fig. 1 is the structure chart of existing network transformer case,
Fig. 2 is the three-dimensional structure diagram of inventive network transformer embodiments one,
Fig. 3 is the first direction view of housing main body in embodiment one,
Fig. 4 is the sectional view of A-A in Fig. 3,
Fig. 5 is the three-dimensional structure diagram of PIN foot in embodiment one,
Fig. 6 is the first direction view of PIN foot in Fig. 5,
Fig. 7 is the partial sectional view that the present embodiment PIN foot is inserted into PIN foot mounting hole,
Fig. 8 is the manufacturing method embodiment flow chart of inventive network transformer case.
In attached drawing, parts list represented by the reference numerals are as follows:
01, housing main body, 011, side wall of outer shell, 012, PIN foot mounting hole, 02, PIN foot, 021, PIN foot inserting section,
022, section is limited, 023, raised side, 024, recess side
Specific implementation mode
The present invention is further illustrated with embodiment below in conjunction with the accompanying drawings.
The three-dimensional structure diagram of inventive network transformer embodiments one is referring to Fig. 2, a kind of network transformer shell, including by
The housing main body 01 that thermosetting property fire proofing is made, housing main body 01 is box-like in open at one end, further includes PIN foot 02,
Housing main body 01 includes side wall of outer shell 011, and side wall of outer shell 011 is provided with PIN foot mounting hole 012 on the end face of open-mouth;PIN
One end of foot 02 is inserted into PIN foot mounting hole 012, and PIN foot 02 and PIN foot mounting hole 012 are interference fit.
By the way that one end of PIN foot 02 to be inserted into PIN foot mounting hole 012, the manufacturing process of whole network transformer only needs
It is molded and the step of grafting can complete, reduce production process, simplify production procedure, substantially increase production effect
Rate;Meanwhile it being plugged rear notch end face direct plating tin, whole plating is not gone again, and originally whole be electroplated breaks disconnected extra PIN
Foot wastes copper material and plated material, completes network transformer shell production process and is much less;Copper material reduces 4 times or more;Especially
Hi-pot test is done performing network transformer, because of only row's PIN foot, electric arc will not be played as existing two rows of PIN foot,
Improve the electrical safety performance of network transformer.Since PIN foot 02 and PIN foot mounting hole 012 are interference fit, it is ensured that PIN
The fastness that foot 02 and housing main body 01 are installed is not in loosen and fall off now during the use of network transformer shell
As very reliably.
In the present embodiment, the interference volume of the outer diameter of PIN foot 02 and the minor diameter fit of PIN foot mounting hole 012 is 0.01mm;
Wherein, the housing main body 01 in the present embodiment is using black DAP plastics, due to good thermosetting property, static electricity resistance and absolutely
Edge after black DAP plastic heatings, can make molecular configuration be combined into net pattern, once network polymer is combined into, even if again
Heating will not soften, and intensity is higher, very reliably;The material of PIN foot 02 is phosphor bronze C5191, has good electrical resistance
Energy and solderability.
The interference volume of housing main body 01 and PIN foot 02 between the two is 0.01mm, it can be ensured that the two being capable of normal grafting
While, additionally it is possible to ensure the fastness connected between the two;The network transformer shell produced using the cooperation of this dimensional tolerance,
After completing, the phenomenon that PIN foot 02 can bear the outer force effect of 9N, and PIN foot 02 does not have loose or dislocation, very may be used
It leans on.
In the present embodiment, the part that PIN foot 02 is inserted into PIN foot mounting hole 012 is PIN foot inserting section 021, PIN foot
Limit section 022 is provided in inserting section 021, there are four sides for limit section 022 tool, including protrude from 021 side of PIN foot inserting section
Two raised sides 023 and be depressed in two of 021 side of PIN foot inserting section recess sides 024.
Wherein, two raised sides 023 are oppositely arranged, and two recess sides 024 are oppositely arranged.
Section 022, including two raised sides 023 and two recess sides 024 are limited by setting, due to housing main body 01
It is injection molding, there is certain ductility, when PIN foot inserting section 021 is inserted into PIN foot mounting hole 012 so that
The plastics that PIN foot mounting hole 012 is contacted with two recess sides 024 are embedded in two recess sides 024, two raised sides
In the plastics of 023 insertion PIN foot mounting hole 012, PIN foot inserting section 021 forms mutually nested structure with PIN foot mounting hole 012,
Further improve the fastness and reliability of 01 grafting of PIN foot 02 and housing main body.Raised side 023 is oppositely arranged so that
Back-off position balance setting of the PIN foot inserting section 021 in PIN foot mounting hole 012, stress are more uniform.
In the present embodiment, limit section 022 is multiple, and multiple limit sections 022 are alternate to be arranged in PIN foot inserting section 021, more
Raised side 023 and recess side 024 in a limit section 022 are arranged alternately on 021 same side of PIN foot inserting section.Its
In, the protrusion height that raised side 023 protrudes from the side of PIN foot inserting section 021 is preferably set to 0.1mm to 0.2mm.Wherein,
The cup depth for the side that recess side 024 is depressed in PIN foot inserting section 021 is preferably set to 0.05mm to 0.1mm.
Limit section 022 is set as multiple so that PIN foot inserting section 021 and the back-off power of PIN foot mounting hole 012 are at multiplication
Add, fastness is more preferable, reliability higher;Raised side 023 and recess side 024 are submitted in 021 same side of PIN foot inserting section
For setting so that back-off power is more balanced.
The protrusion height of raised side 023 is set as 0.1mm to 0.2mm, convenient for raised side 023 is embedded in housing main body
In 01 plastics, meanwhile, it can also play good fixed function.
Since the hardness of the plastics of housing main body 01 is less than the hardness of limit section 022 in PIN foot 02;Pass through raised side
023 squeezing action, the amount of plastic that the plastics of housing main body 01 are expressed to the recess of recess side 024 do not have protrusion side
The protrusion part in face 023 is more, while also further improving the close journey of limit section 022 and the connection of PIN foot mounting hole 012
Degree.
In the present embodiment, limit section 022 is structure as a whole with PIN foot inserting section 021.
Limit section 022 is structure as a whole with PIN foot inserting section 021, improves the rigidity and fastness of PIN foot 02.
The first direction view of housing main body is referring to Fig. 3, network transformer shell in embodiment one, including is hindered by thermosetting property
The housing main body 01 that combustible material is made, housing main body 01 are in lid-like, and housing main body 01 includes side wall of outer shell 011, shell
Side wall 011 is provided with PIN foot mounting hole 012 on the end face of opening.
The sectional view of A-A is provided with PIN foot mounting hole referring to Fig. 4, side wall of outer shell 011 on the end face of opening in Fig. 3
012;One end of PIN foot 02 is inserted into PIN foot mounting hole 012, and PIN foot 02 and PIN foot mounting hole 012 are interference fit.
The structure chart of PIN foot is inserted into the part in PIN foot mounting hole 012 referring to Fig. 5 and Fig. 6, PIN foot 02 in embodiment one
For PIN foot inserting section 021, PIN foot inserting section 021 is provided with limit section 022, and there are four sides, including protrusion for limit section 022 tool
In the raised side 023 of the side of PIN foot inserting section 021 two and two recess sides 024 for being depressed in PIN foot inserting section 021.
Two raised sides 023 are oppositely arranged, and two recess sides 024 are oppositely arranged;It is two, two to limit section 022
Raised side 023 and recess side 024 of the alternate setting of section 022 in PIN foot inserting section 021, two limit sections 022 is limited to exist
PIN foot inserting section is arranged alternately on 021 same side;Wherein, limit section 022 is structure as a whole with PIN foot inserting section 021.
Section 022, including two raised sides 023 and two recess sides 024 are limited by setting, due to housing main body 01
It is injection molding, there is certain ductility, when PIN foot inserting section 021 is inserted into PIN foot mounting hole 012 so that
The plastics that PIN foot mounting hole 012 is contacted with two recess sides 024 are embedded in two recess sides 024, two raised sides
In the plastics of 023 insertion PIN foot mounting hole 012, PIN foot inserting section 021 forms mutually nested structure with PIN foot mounting hole 012,
Further improve the fastness and reliability of 01 grafting of PIN foot 02 and housing main body.
Raised side 023 is oppositely arranged so that back-off position of the PIN foot inserting section 021 in PIN foot mounting hole 012 is flat
Weighing apparatus setting, stress are more uniform.
Limit section 022 is set as multiple so that PIN foot inserting section 021 and the back-off power of PIN foot mounting hole 012 are at multiplication
Add, fastness is more preferable, reliability higher;Raised side 023 and recess side 024 are submitted in 021 same side of PIN foot inserting section
For setting so that back-off power is more balanced.
The present embodiment PIN foot is inserted into the partial sectional view in PIN foot mounting hole referring to Fig. 7, and one end of PIN foot 02 is inserted into
In PIN foot mounting hole 012, PIN foot 02 and PIN foot mounting hole 012 are interference fit.Wherein, limit section 022 is two, two
Raised side 023 and recess side 024 of the alternate setting of section 022 in PIN foot inserting section 021, two limit sections 022 is limited to exist
PIN foot inserting section is arranged alternately on 021 same side;Wherein, limit section 022 is structure as a whole with PIN foot inserting section 021.
In a particular embodiment, the specification of PIN foot mounting hole 012 is square that the length of side is 0.3mm on housing main body 01
The depth in hole, PIN foot mounting hole 012 is 1.8mm;Wherein, the cross section of PIN foot 02 is square, its side length is 0.32mm,
The interference volume of the outer diameter of PIN foot 02 and the minor diameter fit of PIN foot mounting hole 012 is 0.01mm;It is two, two to limit section 022
Raised side 023 and recess side 024 of the alternate setting of section 022 in PIN foot inserting section 021, two limit sections 022 is limited to exist
PIN foot inserting section is arranged alternately on 021 same side, wherein raised side 023 is high relative to the protrusion on 022 surface of limit section
Degree difference is 0.1mm, and recess side 024 is 0.05mm for limit 022 depression in the surface difference in height of section.
Include shell and coil 03 the present invention also provides one kind, shell is above-mentioned network transformer shell, and coil 03 is set
It sets in housing main body 01, coil 03 has the bonding wire end for being welded with PIN foot 02, and bonding wire end is welded on PIN foot 02
On.
The manufacturing process of whole network transformer only needs the step of injection molding, grafting and bonding wire that can complete, and reduces
Production process simplifies production procedure, substantially increases production efficiency;Meanwhile being plugged rear notch end face direct plating tin, Bu Yaozai
Whole plating is gone, originally whole be electroplated breaks disconnected extra PIN foot, wastes copper material and plated material, completes outside network transformer
Shell production process is much less;Copper material reduces 4 times or more, what the PIN foot of existing network transformer had been electroplated in advance, has inserted
End face barrel plating or wicking are needed, it is energy saving;Hi-pot test is especially done performing network transformer, because of only row's PIN foot, no
Electric arc can be played as existing two rows of PIN foot, improve the electrical safety performance of network transformer;Common-mode signal subtracts because line is short
Weak, distribution capacity is accordingly reduced;In actual use, can first wound around coil bonding wire, clubfoot again after wicking welding, more
Easily automation.Since PIN foot 02 and PIN foot mounting hole 012 are interference fit, it is ensured that PIN foot 02 and housing main body 01 are installed
Fastness, be not in loosening and obscission during the use of network transformer shell, very reliably.
The manufacturing method embodiment flow chart of inventive network transformer is referring to Fig. 8, a kind of manufacturer of network transformer
Method includes the following steps:
Step 1: by 01 injection molding of housing main body, PIN foot mounting hole 012 is formed;
Casing assembly is formed Step 2: one end of PIN foot 02 is inserted into PIN foot mounting hole 012 on automatic needle inserting machine,
PIN foot 02 and the inserting pressure of PIN foot mounting hole 012 are 10N to 40N;
Step 3: coil 03 to be put into the casing assembly inserted, the bonding wire end of coil 03 is wrapped in PIN foot 02
On, and it is tin plating at the winding of PIN foot 02 by way of immersed solder.
By the way that one end of PIN foot 02 to be inserted into PIN foot mounting hole 012, the manufacturing process of whole network transformer only needs
Be molded, grafting and the step of bonding wire can be completed, reduce production process, simplify production procedure, substantially increase life
Produce efficiency;Meanwhile be plugged rear notch end face direct plating tin, not go whole plating again, originally it is whole be electroplated break it is disconnected extra
PIN foot wastes copper material and plated material, completes network transformer shell production process and is much less.
In the description of the present invention, it is to be understood that, term "center", " length ", " width ", "upper", "lower", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "top", "bottom", "inner" is that orientation based on ... shown in the drawings or position are closed
System, is merely for convenience of description of the present invention and simplification of the description, not indicating or implying the indicated device or element must have
Specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral;It can be direct phase
Even, can also can be indirectly connected through an intermediary that the interaction of the connection or two elements inside two elements is closed
System.For the ordinary skill in the art, above-mentioned term in the present invention specific can be understood as the case may be
Meaning.
In the present invention unless specifically defined or limited otherwise, fisrt feature the "upper" of second feature or "lower"
It may include that the first and second features are in direct contact, can also not be to be in direct contact but pass through it including the first and second features
Between other characterisation contact.Moreover, fisrt feature second feature " on ", " top " and " above " include first special
Sign is right over second feature and oblique upper, or is merely representative of fisrt feature level height and is higher than second feature.Fisrt feature exists
Second feature " under ", " lower section " and " following " include fisrt feature immediately below second feature and obliquely downward, or be merely representative of
Fisrt feature level height is less than second feature.
Network transformer shell, network transformer and its manufacturing method of the present invention are described in detail above, this
Specific case is applied in text, and principle and implementation of the present invention are described.The explanation of above example is only intended to
Help understands core of the invention thought;Meanwhile for those of ordinary skill in the art, according to the thought of the present invention, having
There will be changes in body embodiment and application range, in conclusion the content of the present specification should not be construed as to the present invention
Limitation.
Claims (6)
1. a kind of network transformer shell includes the housing main body (01) being made by thermosetting property fire proofing, the shell
Main body (01) is box-like in open at one end, which is characterized in that further includes PIN foot (02), the housing main body (01) includes shell
Side wall (011), the side wall of outer shell (011) are provided with PIN foot mounting hole (012) on the end face of open-mouth;The PIN foot
(02) one end is inserted into the PIN foot mounting hole (012), and the PIN foot (02) and the PIN foot mounting hole (012) were
It is full of cooperation;The interference volume of the minor diameter fit of the outer diameter of the PIN foot (02) and the PIN foot mounting hole (012) be 0.005mm extremely
0.02mm;The part that the PIN foot (02) is inserted into the PIN foot mounting hole (012) is PIN foot inserting section (021), described
Limit section (022) is provided in PIN foot inserting section (021), there are four sides for limit section (022) tool, including protrude from institute
It states two raised sides (023) of PIN foot inserting section (021) side and is depressed in the two of PIN foot inserting section (021) side
A recess side (024);Two raised sides (023) are oppositely arranged, and two recess sides (024) are oppositely arranged;
The limit section (022) is multiple, and multiple limit sections (022) are alternate to be arranged in the PIN foot inserting section (021), multiple
Raised side (023) and recess side (024) in the limit section (022) is in PIN foot inserting section (021) same side
On be arranged alternately.
2. network transformer shell according to claim 1, which is characterized in that the raised side (023) protrudes from institute
The protrusion height for stating the side of PIN foot inserting section (021) is 0.1mm to 0.2mm.
3. network transformer shell according to claim 2, which is characterized in that the recess side (024) is depressed in institute
The cup depth for stating the side of PIN foot inserting section (021) is 0.05mm to 0.1mm.
4. network transformer shell according to claim 1, which is characterized in that the limit section (022) and the PIN foot
Inserting section (021) is structure as a whole.
5. a kind of network transformer, including shell and coil (03), which is characterized in that the shell is that Claims 1-4 is any
Network transformer shell described in, in the housing main body (01), the coil (03) has for coil (03) setting
Bonding wire end for being welded with PIN foot (02), the bonding wire end are welded in the PIN foot (02).
6. a kind of manufacturing method of network transformer as claimed in claim 5, which is characterized in that include the following steps:
Step 1: by housing main body (01) injection molding, PIN foot mounting hole (012) is formed;
Casing assembly is formed Step 2: one end of PIN foot (02) is inserted into PIN foot mounting hole (012) on automatic needle inserting machine,
The inserting pressure of the PIN foot (02) and the PIN foot mounting hole (012) is 10N to 40N;
Step 3: coil (03) is put into the casing assembly inserted, the bonding wire end of coil (03) is wrapped in PIN foot (02)
On, and it is tin plating at the winding of PIN foot (02) by way of immersed solder.
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CN108305777A (en) * | 2018-05-09 | 2018-07-20 | 德阳帛汉电子有限公司 | A kind of network transformer line hanging mechanism |
CN108766752A (en) * | 2018-08-09 | 2018-11-06 | 耒阳市亚湘电子科技有限公司 | A kind of network transformer breaks sheet devices |
CN109326425B (en) * | 2018-10-15 | 2024-05-14 | 德阳致达精密电子有限公司 | Network transformer and manufacturing method thereof |
CN110148519B (en) * | 2019-06-03 | 2021-12-10 | 四川省正元包装印务有限责任公司 | Manual winding method for lead of network filter |
CN113035553B (en) * | 2021-03-26 | 2023-03-24 | 四川长虹电子部品有限公司 | Method for improving corrosion resistance and production efficiency of pin transformer |
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CN204966760U (en) * | 2015-08-14 | 2016-01-13 | 重庆民生变压器有限责任公司 | Transformer terminal of highly reliable connection of sectional type boss interference |
CN205845671U (en) * | 2016-07-22 | 2016-12-28 | 深圳市一致精展塑胶制品有限公司 | Network transformer chip |
CN206312698U (en) * | 2016-12-30 | 2017-07-07 | 广州经济技术开发区黄海精密模具有限公司 | A kind of network transformer shell and network transformer |
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CN204966760U (en) * | 2015-08-14 | 2016-01-13 | 重庆民生变压器有限责任公司 | Transformer terminal of highly reliable connection of sectional type boss interference |
CN205845671U (en) * | 2016-07-22 | 2016-12-28 | 深圳市一致精展塑胶制品有限公司 | Network transformer chip |
CN206312698U (en) * | 2016-12-30 | 2017-07-07 | 广州经济技术开发区黄海精密模具有限公司 | A kind of network transformer shell and network transformer |
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