CN207397877U - A kind of network filter - Google Patents
A kind of network filter Download PDFInfo
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- CN207397877U CN207397877U CN201721444629.0U CN201721444629U CN207397877U CN 207397877 U CN207397877 U CN 207397877U CN 201721444629 U CN201721444629 U CN 201721444629U CN 207397877 U CN207397877 U CN 207397877U
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Abstract
The utility model provides a kind of network filter, it is related to magnetic device technical field, the network filter includes upper cover, pedestal and transformation connection main body, upper cover is removably attachable to pedestal and forms an accommodating cavity with pedestal, transformation connection main body includes printed circuit board (PCB), coil block and multiple connection pins, printed circuit board (PCB) is placed in accommodating cavity and is fixedly connected on pedestal, coil block is fixedly connected on printed circuit board (PCB), multiple connection pins are both secured to printed circuit board (PCB), one end of each connection pin is electrically connected through printed circuit board (PCB) and with coil block, the other end is through pedestal and stretches out accommodating cavity.Compared to the prior art, a kind of network filter provided by the utility model is simple in structure to understand, be related to reasonable novelty, improves the production simplification and convenience of network transformer.
Description
Technical field
The utility model is related to magnetic device technical field, in particular to a kind of network filter.
Background technology
Transformer is the device for changing alternating voltage using the principle of electromagnetic induction, and main member is coil and magnetic core.
In electrical equipment and radio-circuit, buck/boost, matching impedance, security isolation etc. are commonly used for.In generator, either line
Circle movement by magnetic field or Movement in Magnetic Field by fixed coil, can in coil induced potential, this two kinds of situations, the value of magnetic flux
It is constant, but have variation with the magnetic flux quantity of coil intersecting chain, this is the principle of mutual induction.Transformer is exactly a kind of using electric
The device of magnetic mutual induction, voltage of transformation, electric current and impedance.The function of transformer mainly has：Voltage transformation；Current transformation, impedance
Conversion；Isolation；The network transformers such as voltage stabilizing (magnetic saturation transformer) are to be connected to connecing for Ethernet transceiving chip and terminal device
Between mouthful, play signal transmission, impedance matching, waveform reparation, signal noise inhibition and high-voltage isolating.Network transformer master
It applies and the network equipments such as router, computer.
Existing network filter, industry are mainly combined using magnetic core coil with glue shell phase, pass through artificial operator
Magnetic core coil the end of a thread line tail is wrapped on the inner terminal in glue shell by formula, then is fixed the two by the operating type of high temperature wicking
Weld together, and such operating type inefficiency, employee has the risk being burned in high temperature wicking operation, and product
Magnetic core coil be by enameled wire coiling, high temperature wicking be easy to destroy magnetic core coil coat of paint, make product occur it is pressure-resistant bad
Hidden danger.And if scaling powder used in high temperature wicking does not clean up and easily causes that terminal is dirty, and client can go out
Existing upper plate is bad.In addition show glue shell external terminal used in production technology and be limited to product requirement in itself very carefully, in the system of product
To make, pack, transporting and during the use of client it is easy to appear crooked, deformation, such fraction defective is very high, and this
Sample it is bad client using when can cause product failure, and usually taken time and effort very much when handling this bad, and not
It can prevent the outflow of defective products completely, production flow is complicated at this stage, and the production cycle is partially long, and the fraction defective of production begins
It is high eventually, greatly cause the waste of resource.How by improving the mechanism of network transformer, to realize network transformation
The production automation of device is the effort of industry technical staff to improve the improving productivity production yield of network transformer
Target.
In view of this, a kind of simple in structure, design rationally novel while easily manufactured network filter is designed and manufactured
Just it is particularly important.
Utility model content
It is simple in structure to understand, design reasonable novelty simultaneously the purpose of this utility model is to provide a kind of network filter
It is easily manufactured.
The utility model is realized using following technical solution.
A kind of network filter connects main body including upper cover, pedestal and transformation, and upper cover is removably attachable to pedestal simultaneously
An accommodating cavity is formed with pedestal, transformation connection main body includes printed circuit board (PCB), coil block and multiple connection pins, printing electricity
Road plate is placed in accommodating cavity and is fixedly connected on pedestal, coil block be fixedly connected on printed circuit board (PCB) and with printed circuit board (PCB) electricity
Property connection, multiple connection pins are both secured to printed circuit board (PCB), and each one end for connecting pin is through printed circuit board (PCB) and and line
Coil assembly is electrically connected, and the other end is through pedestal and stretches out accommodating cavity.
Further, array is provided with multiple tie points on printed circuit board (PCB), and multiple connection pins connect correspondingly
In multiple tie points, so that multiple connection pins are electrically connected with coil block.
Further, coil block includes first coil magnetic group and the second coil magnetic group, first coil magnetic group and the second line
Circle magnetic group is fixedly connected in a side surface of printed circuit board (PCB) and is electrically connected with multiple connection pins.
Further, two rear line heads of first coil magnetic group and the second coil magnetic group weld on a printed circuit.
Further, first coil magnetic group and the weld of the second coil magnetic group and printed circuit board (PCB) coating matcoveredn.
Further, protective layer is red compound protective layer.
Further, pedestal includes bottom plate and two carrying boss, and upper cover is removably attachable to two carrying boss, and two
A boss that carries is fixedly connected on bottom plate, and each pin that connects sequentially passes through bottom plate and one of carrying boss and with printing electricity
Road plate welds together.
Further, buckle protrusion each is respectively provided on the side wall at carrying boss both ends, upper cover is opened on opposite two side
Equipped with block button hole, buckle protrusion is engaged with block button hole.
Further, the periphery of bottom plate is provided with bonding slot, and connection glue is filled in bonding slot, and upper cover is stretched into bonding slot
And pass through that connect glue Nian Jie with bottom plate.
A kind of network filter connects main body including upper cover, pedestal and transformation, and upper cover is removably attachable to pedestal simultaneously
An accommodating cavity is formed with pedestal, transformation connection main body includes printed circuit board (PCB), coil block and multiple connection pins, printing electricity
Road plate is placed in accommodating cavity and is fixedly connected on pedestal, coil block be fixedly connected on printed circuit board (PCB) and with printed circuit board (PCB) electricity
Property connection, multiple connection pins are both secured to printed circuit board (PCB), and each one end for connecting pin is through printed circuit board (PCB) and and line
Coil assembly is electrically connected, and the other end is through pedestal and stretches out accommodating cavity.Coil block includes first coil magnetic group, the second coil magnetic
Group, tertiary coil magnetic group and the 4th coil magnetic group, first coil magnetic group are fixedly connected with the second coil magnetic group in printed circuit
The one side of plate is simultaneously electrically connected with multiple connection pins, and tertiary coil magnetic group is connected and printing electricity for fixed with the 4th coil magnetic group
The opposite side of road plate is simultaneously electrically connected with multiple pins, and tertiary coil magnetic group is oppositely arranged with first coil magnetic group and sets up separately and print
The both sides of printed circuit board, the 4th coil magnetic group are oppositely arranged with the second coil magnetic group and are divided into the both sides of printed circuit board (PCB).
The utility model has the advantages that：
Upper cover is removably attachable to pedestal and is formed with pedestal hold by a kind of network filter provided by the utility model
Chamber is put, printed circuit board (PCB) is contained in accommodating cavity and is fixedly connected on pedestal, and coil block is fixedly connected on printed circuit board (PCB), more
A connection pin is fixed on printed circuit board (PCB).Compared to the prior art, a kind of network filter provided by the utility model, structure
It is simple and clear, be related to reasonable novelty, improve the production simplification and convenience of network transformer.
Description of the drawings
It, below will be to required use in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by
Regard the restriction to scope as, for those of ordinary skill in the art, without creative efforts, may be used also
To obtain other relevant attached drawings according to these attached drawings.
Fig. 1 is the structure diagram at the first visual angle of network filter that the utility model first embodiment provides；
Fig. 2 is the attachment structure schematic diagram of Fig. 1 center line coil assemblies；
Fig. 3 is the structure diagram at the second visual angle of network filter that the utility model first embodiment provides；
Fig. 4 is the partial structural diagram for the network filter that the utility model second embodiment provides.
Icon：10- network filters；100- transformations connect main body；110- printed circuit board (PCB)s；111- tie points；130- lines
Coil assembly；131- first coil magnetic groups；133- the second coil magnetic groups；135- tertiary coil magnetic groups；The 4th coil magnetic groups of 137-；
150- connection pins；200- upper covers；300- pedestals；310- bottom plates；330- carries boss.
Specific embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model part of the embodiment, instead of all the embodiments.Usually here described in attached drawing and
The component of the utility model embodiment shown can configure to arrange and design with a variety of.
Therefore, requirement is not intended to limit to the detailed description of the embodiment of the utility model provided in the accompanying drawings below
The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Based in the utility model
Embodiment, those of ordinary skill in the art's all other embodiments obtained without creative efforts, all
Belong to the scope of the utility model protection.
It should be noted that：Similar label and letter represents similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent attached drawing in a attached drawing.
, it is necessary to explanation in the description of the utility model, term " " center ", " on ", " vertical ", " level ", " interior ",
The orientation or position relationship of instructions such as " outer " are based on orientation shown in the drawings or position relationship or the utility model product
The orientation or position relationship usually put during use are for only for ease of description the utility model and simplify description, without referring to
Show or imply that the device of meaning or element there must be specific orientation, with specific azimuth configuration and operation, therefore cannot manage
It solves as the limitation to the utility model.In addition, term " first ", " second " etc. are only used for distinguishing description, and it is not intended that referring to
Show or imply relative importance.
In the description of the utility model, it is also necessary to which explanation, unless otherwise clearly defined and limited, term " are set
Put ", " connected ", " installation ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected,
Or it is integrally connected；Can be mechanical connection or electrical connection；It can be directly connected, intermediary can also be passed through
It is indirectly connected, can be the connection inside two elements.For the ordinary skill in the art, can be managed with concrete condition
Solve concrete meaning of the above-mentioned term in the utility model.
Below in conjunction with the accompanying drawings, elaborate to some embodiments of the utility model.In the case where there is no conflict, under
Feature in the embodiment stated can be mutually combined.
First embodiment
Referring to Fig. 1, present embodiments provide a kind of network filter 10, including transformation connection main body 100, upper cover 200 with
And pedestal 300, upper cover 200 are removably attachable to pedestal 300 and form an accommodating cavity, transformation connection main body 100 with pedestal 300
Accommodating cavity is placed in including printed circuit board (PCB) 110, coil block 130 and multiple connection pins 150, printed circuit board (PCB) 110 simultaneously
Pedestal 300 is fixedly connected on, coil block 130 is fixedly connected on printed circuit board (PCB) 110, and multiple connection pins 150 are both secured to
Printed circuit board (PCB) 110, each one end for connecting pin 150 are electrically connected through printed circuit board (PCB) 110 and with coil block 130, separately
One end is through pedestal 300 and stretches out accommodating cavity.Specifically, printed circuit board (PCB) 110 is fixedly connected on pedestal by welding
On 300.
In the present embodiment, printed circuit board (PCB) 110 is printed circuit board (PCB) 110, and coil block 130 is fixedly connected on printing electricity
Road plate 110 is simultaneously electrically connected with printed circuit board (PCB) 110, has multiple tie points 111 on printed circuit board (PCB) 110, and multiple connections are drawn
Foot 150 is connected to multiple tie points 111 correspondingly, so that multiple connection pins 150 are electrically connected with coil block 130.
Specifically, the upper array distribution of printed circuit board (PCB) 110 has multiple tie points 111, and multiple connection pins 150 1 are a pair of
It is welded at multiple tie points 111 with answering, so that each connection pin 150 is electrically connected with printed circuit board (PCB) 110.
In the present embodiment, array distribution has 72 tie points, 111,72 tie points 111 to be divided to two on printed circuit board (PCB) 110
Group is distributed in the both ends that printed circuit leans on proximal edge, and 150 numbers of connection pin are also 72, form the network transformer of 72pin.
Certainly, tie point 111 can also be 48 or 36 etc. herein, be not especially limited herein.
In the present embodiment, 200 rectangular body shape of upper cover, so that the network filter 10 is whole box shaped.Certainly, herein
Upper cover 200 can also be other shapes, such as cylinder or diamond shape column etc., be not especially limited herein.
Referring to Fig. 2, coil block 130 includes first coil magnetic group 131 and the second coil magnetic group 133, first coil magnetic group
131 are fixedly connected in the one side of printed circuit board (PCB) 110 with the second coil magnetic group 133 and are electrically connected with multiple connection pins 150.
In the present embodiment, 131 and second coil magnetic group 133 of first coil magnetic group is fixedly connected in printed circuit board (PCB)
110 upper surface.And first coil magnetic group 131 is drawn with the second coil magnetic group 133 by printed circuit board (PCB) 110 and multiple connections
Foot 150 is electrically connected.
First coil magnetic group 131 includes first coil (non-label in figure) and multiple first magnetic cores (non-label in figure), more
A first magnetic core is disposed in parallel on printed circuit board (PCB) 110, and first coil is set around multiple first magnetic cores and successively with printing electricity
Road plate 110 is fixedly connected, and multiple connection pins 150 are electrically connected with first coil.
Second coil includes the second coil (non-label in figure) and multiple second magnetic cores (non-label in figure), multiple second magnetic
Core is disposed in parallel on printed circuit board (PCB) 110 and close to multiple first magnetic core, and the second coil is set around multiple second magnetic cores successively
And be fixedly connected with printed circuit board (PCB) 110, multiple connection pins 150 are electrically connected with the second coil.
In the present embodiment, the both ends of first coil and the second coil are welded on printed circuit board (PCB) 110.Specifically,
The end of a thread and line tail of first coil and the second coil are directly welded on printed circuit board (PCB) 110, first coil magnetic group 131 and the
Two coil magnetic group 133 and the weld coating matcoveredn of printed circuit board (PCB) 110.First coil and the second coil and printed circuit
Contact point pass through the red glue of automatic dispensing machine point and carry out covering protection so that first coil is us shown firmly attached to print with the second coil
On printed circuit board 110.
In the present embodiment, each first magnetic core is fixed with each second magnetic core by silica gel and printed circuit board (PCB) 110
Connection.It is of course also possible to be other types ground bonding agent, such as red glue or glass cement etc., it is not especially limited herein.
It is worth noting that, in the present embodiment, the first magnetic core and the second magnetic core are in annular shape, and the first magnetic core is outer
Footpath is more than the outer diameter of the second magnetic core, and multiple first magnetic cores are horizontal on printed circuit board (PCB) 110, and multiple second magnetic cores are correspondingly
It is sticked on the side of the first magnetic core.
Referring to Fig. 3, pedestal 300 includes bottom plate 310 and two carrying boss 330, upper cover 200 are removably attachable to two
Boss 330 is carried, two carrying boss 330 are fixedly connected on bottom plate 310, and each pin 150 that connects sequentially passes through 310 He of bottom plate
One of carrying boss 330 is simultaneously fixedly connected with printed circuit board (PCB) 110.
In the present embodiment, buckle protrusion each is respectively provided on the side wall at 330 both ends of carrying boss, upper cover 200 is opposite
Block button hole is offered on two side, buckle protrusion is engaged with block button hole.Specifically, each one end of carrying boss 330 has
It there are one buckle protrusion, is opened up respectively on the side wall at 200 both ends of upper cover there are two block button hole, when the lid of upper cover 200 is located at pedestal 300
When upper, buckle protrusion is deep into block button hole under the effect of external force so that upper cover 200 and pedestal 300 are buckled into an entirety.
In the utility model other preferred embodiments, the connection mode of upper cover 200 and pedestal 300 can also be viscous
It connects.Specifically, the periphery of bottom plate 310 is provided with bonding slot, and connection glue is filled in bonding slot, and upper cover 200 is stretched into bonding slot
And pass through that connect glue be bonded with bottom plate 310.
It should be noted that in the actual production process, first coil is passed around in the first magnetic core using automatic coil winding machine
On, the second coil is passed around on the second magnetic core, is then directly used the end of a thread and line tail of first coil and the second coil entirely certainly
Dynamic mash welder is directly welded on printed circuit board (PCB) 110, then arranges red glue to first coil and by automatic dispensing machine point two
The contact point of two coil and printed circuit board (PCB) 110 carries out covering protection, in addition again to the first magnetic core and the second magnetic core point silica gel into
The fixed protection of row, after printed circuit board (PCB) 110 and pedestal 300 are welded together, combination upper cover 200 completes entire manufacturing process.
In conclusion a kind of network filter 10 provided in this embodiment, First Line is devised on printed circuit board (PCB) 110
The internal circuit of the welding position and corresponding client requirement of circle and the second coil, the first magnetic group and the second magnetic group will be by phases
The fixture answered is welded on after fixing on printed circuit board (PCB) 110 again, is then fixedly connected with printed circuit board (PCB) 110 with pedestal 300, then
Upper cover 200 is combined so as to form complete network transformer.Compared with traditional network transformer, net provided in this embodiment
The composition of network wave filter 10 is beneficial to realize that the assembling production operation of transformer is completed by automation equipment, is conducive to improve net
The quality and production efficiency of network transformer.The utility model is simple in structure directly, and design is reasonable, can import mechanical automation equipment
To reducing product cost and enhancing product performance and production efficiency has significant effect.It is to be carried for one kind of product design
It rises, the trend in industry future will be led.
Second embodiment
Referring to Fig. 4, a kind of network filter 10, basic structure and principle and the technology of generation effect are present embodiments provided
Fruit is identical with first embodiment, and to briefly describe, the present embodiment part does not refer to part, can refer in corresponding in first embodiment
Hold.
The network filter 10 includes upper cover 200, pedestal 300 and transformation connection main body 100, and upper cover 200 is removably
It is connected to pedestal 300 and forms an accommodating cavity with pedestal 300, transformation connection main body 100 includes printed circuit board (PCB) 110, coil group
Part 130 and multiple connection pins 150, printed circuit board (PCB) 110 are placed in accommodating cavity and are fixedly connected on pedestal 300, coil group
Part 130 is fixedly connected on printed circuit board (PCB) 110, and multiple connection pins 150 are both secured to printed circuit board (PCB) 110, and each connection is drawn
One end of foot 150 is electrically connected through printed circuit board (PCB) 110 and with coil block 130, and the other end is through pedestal 300 and stretches out accommodating
Chamber.
Coil block 130 includes first coil magnetic group 131, the second coil magnetic group 133, tertiary coil magnetic group 135 and the 4th
Coil magnetic group 137, first coil magnetic group 131 and the second coil magnetic group 133 are fixedly connected in the one side of printed circuit board (PCB) 110 simultaneously
It is electrically connected with multiple connection pins 150, tertiary coil magnetic group 135 links and printing electricity for fixed with the 4th coil magnetic group 137
The opposite side of road plate 110 is simultaneously electrically connected with multiple pins, and tertiary coil magnetic group 135 is oppositely arranged with first coil magnetic group 131
And setting up the both sides with printed circuit board (PCB) 110 separately, the 4th coil magnetic group 137 is oppositely arranged and is divided into the second coil magnetic group 133
The both sides of printed circuit board (PCB) 110.
In the present embodiment, first coil magnetic group 131 is identical with the structure of tertiary coil magnetic group 135 and sets up separately in printing electricity
The both sides of road plate 110, the second coil magnetic group 133 is identical with the structure of the 4th coil magnetic group 137 and sets up separately in printed circuit board (PCB) 110
Both sides, concrete structure can be found in first embodiment.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modifications, equivalent replacements and improvements are made should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of network filter, which is characterized in that connect main body including upper cover, pedestal and transformation, the upper cover is detachable
Ground is connected to the pedestal and forms an accommodating cavity with the pedestal, and the transformation connection main body includes printed circuit board (PCB), coil
Component and multiple connection pins, the printed circuit board (PCB) is placed in the accommodating cavity and is fixedly connected on the pedestal, described
Coil block is fixedly connected on the printed circuit board (PCB) and is electrically connected with the printed circuit board (PCB), and multiple connection pins are equal
Be fixed on the printed circuit board (PCB), one end of each connection pin through the printed circuit board (PCB) and with the coil block
Electrical connection, the other end is through the pedestal and stretches out the accommodating cavity.
2. network filter according to claim 1, which is characterized in that array is provided with multiple on the printed circuit board (PCB)
Tie point, it is multiple it is described connection pins be connected to multiple tie points correspondingly so that it is multiple it is described connection pin with
The coil block electrical connection.
3. network filter according to claim 1, which is characterized in that the coil block include first coil magnetic group and
Second coil magnetic group, the first coil magnetic group are fixedly connected with one in the printed circuit board (PCB) with the second coil magnetic group
Side surface is simultaneously electrically connected with multiple connection pins.
4. network filter according to claim 3, which is characterized in that the first coil magnetic group and second coil
Two rear line heads of magnetic group weld on the printed circuit board.
5. network filter according to claim 4, which is characterized in that the first coil magnetic group and second coil
Magnetic group and the weld coating matcoveredn of the printed circuit board (PCB).
6. network filter according to claim 5, which is characterized in that the protective layer is red compound protective layer.
7. network filter according to claim 1, which is characterized in that the pedestal includes bottom plate and two carryings are convex
Platform, the upper cover are removably attachable to two carrying boss, and two carrying boss are fixedly connected on the bottom plate,
Each connection pin sequentially passes through the bottom plate and one of them described carrying boss and is welded with the printed circuit board (PCB)
Together.
8. network filter according to claim 7, which is characterized in that on the side wall at each carrying boss both ends
With buckle protrusion, block button hole is offered on the opposite two side of the upper cover, the buckle is raised to match with the block button hole
It closes.
9. network filter according to claim 7, which is characterized in that the periphery of the bottom plate is provided with bonding slot, institute
It states filled with connection glue in bonding slot, the upper cover stretches into the bonding slot and passes through the connection glue glues with the bottom plate
It connects.
10. a kind of network filter, which is characterized in that connect main body including upper cover, pedestal and transformation, the upper cover is detachable
Ground is connected to the pedestal and forms an accommodating cavity with the pedestal, and the transformation connection main body includes printed circuit board (PCB), coil
Component and multiple connection pins, the printed circuit board (PCB) is placed in the accommodating cavity and is fixedly connected on the pedestal, described
Coil block is fixedly connected on the printed circuit board (PCB) and is electrically connected with the printed circuit board (PCB), and multiple connection pins are equal
Be fixed on the printed circuit board (PCB), one end of each connection pin through the printed circuit board (PCB) and with the coil block
Electrical connection, the other end is through the pedestal and stretches out the accommodating cavity；
The coil block includes first coil magnetic group, the second coil magnetic group, tertiary coil magnetic group and the 4th coil magnetic group, described
First coil magnetic group and the second coil magnetic group be fixedly connected in the one side of the printed circuit board (PCB) and with multiple companies
Pin electrical connection is connect, the tertiary coil magnetic group is connected and the printed circuit board (PCB) for fixed with the 4th coil magnetic group
Opposite side is simultaneously electrically connected with multiple pins, and the tertiary coil magnetic group is oppositely arranged and divides with the first coil magnetic group
If the both sides with the printed circuit board (PCB), the 4th coil magnetic group is oppositely arranged with the second coil magnetic group and is divided into institute
State the both sides of printed circuit board (PCB).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721444629.0U CN207397877U (en) | 2017-11-01 | 2017-11-01 | A kind of network filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721444629.0U CN207397877U (en) | 2017-11-01 | 2017-11-01 | A kind of network filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207397877U true CN207397877U (en) | 2018-05-22 |
Family
ID=62328176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721444629.0U Active CN207397877U (en) | 2017-11-01 | 2017-11-01 | A kind of network filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207397877U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112133529A (en) * | 2020-09-25 | 2020-12-25 | 常德创亿电子元件有限公司 | Network transformer convenient to dismantle maintenance |
-
2017
- 2017-11-01 CN CN201721444629.0U patent/CN207397877U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112133529A (en) * | 2020-09-25 | 2020-12-25 | 常德创亿电子元件有限公司 | Network transformer convenient to dismantle maintenance |
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