CN207507274U - Filter core and bonding end - Google Patents
Filter core and bonding end Download PDFInfo
- Publication number
- CN207507274U CN207507274U CN201720909427.2U CN201720909427U CN207507274U CN 207507274 U CN207507274 U CN 207507274U CN 201720909427 U CN201720909427 U CN 201720909427U CN 207507274 U CN207507274 U CN 207507274U
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- adhesive portion
- demarcation strip
- spacer structure
- filter core
- bonding
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Abstract
The utility model discloses a kind of filter core and make the bonding end of the filter core.The filter core includes filter house and end, the end includes adhesive portion and end closure, the adhesive portion includes tubular structure, the end closure is connected to one end of the tubular structure, one end of the filter house is adhered in the adhesive portion, demarcation strip is provided in the adhesive portion, spaced apart through apertures are provided on the demarcation strip, the filter house is bonded in after passing through the spaced apart through apertures in the adhesive portion.Filter core provided by the utility model in adhesive portion by setting demarcation strip, make filtration fraction Nian Jie with adhesive portion into multiple smaller fiber-film bundles, it is that fiber-film bundle is not easy in a jumble, simultaneously, the setting of demarcation strip also improves the reliability that filter house is connect with end, effectively filter house can be avoided to come off.
Description
Technical field
The utility model is related to water purifier correlative technology field, more particularly to a kind of filter core and the bonding end for making the filter core
Head.
Background technology
Hollow fiber membrane cartridge is due to the advantages that filtering accuracy is high, membrane area is big, strainability is good, in water purifier
Using more and more extensive.Therefore, filter core needs to have good reliability in the application, to ensure the strainability of filter core and make
Use the service life.
At present, hollow fiber membrane bundle is combined by glue with end and filter core is made, and is easily existed in filter core manufacturing process
Problems with：1st, the binding force between glue, hollow fiber membrane bundle and end not enough be easy to cause fiber-film bundle and is detached with end；
2nd, general in end only there are one fiber-film bundles, since the addition of film wire amount is more, be easy to cause fiber-film bundle and damage film in a jumble
Silk, film wire or fiber-film bundle come off, and influence filter core performance.
Utility model content
In view of this, the utility model provide one kind be provided with demarcation strip with by filtration fraction into multiple fiber-film bundles, and
It improves the filter core of filter house bonding reliability and makes the bonding end of the filter core.
In a first aspect, providing a kind of filter core, including filter house and end, the end includes adhesive portion and end closure, institute
It states adhesive portion and includes tubular structure, the end closure is connected to one end of the tubular structure, one end bonding of the filter house
Into the adhesive portion, demarcation strip is provided in the adhesive portion, spaced apart through apertures, the filtering are provided on the demarcation strip
Portion is bonded in after passing through the spaced apart through apertures in the adhesive portion.
Preferably, the demarcation strip is connected on the inner wall of the adhesive portion, and the adhesive portion is separated into an axial direction
Two parts.
Preferably, the separation hole is provided with multiple.
Preferably, the filter house includes multiple fiber-film bundles, and multiple fiber-film bundles glue after passing through the separation hole
It is connected in the adhesive portion.
Preferably, spacer structure is additionally provided in the adhesive portion, the spacer structure is located at close to the end closure
Side, and multiple regions will be separated into sagittal plane on the inside of the adhesive portion.
Preferably, the hole that separates is corresponded with the region that the spacer structure is separated into.
Preferably, the spacer structure is connected on the demarcation strip and/or the inner wall of the adhesive portion.
Second aspect provides a kind of bonding end, and for making above-mentioned filter core, the bonding end includes adhesive portion, bottom
Portion and demarcation strip, the adhesive portion are tubular structure, and the bottom is arranged on one end of the tubular structure, and the demarcation strip is set
It puts in the adhesive portion, is provided on the demarcation strip and separates hole.
Preferably, glue injection part is provided on the bottom, the glue injection part is connected with the inside of the Nian Jie end.
Preferably, the bottom is in lid-like, and diversion trench is additionally provided on the bottom wall of the lid-like.
Preferably, the separation hole is provided with multiple.
Preferably, the demarcation strip is connected on the inner wall of the adhesive portion, and the demarcation strip is by the adhesive portion along axis
To being divided into two parts.
Preferably, the bonding end further includes spacer structure, and the spacer structure is arranged on close in the adhesive portion
One end of the bottom.
Preferably, the spacer structure is provided with multiple, and multiple spacer structures are by adhesive portion inside radially
Multiple regions are separated into plane.
Preferably, the separation hole on the demarcation strip is corresponded with the region that the spacer structure is separated into.
Preferably, the spacer structure is connected on the demarcation strip and/or the inner wall of the adhesive portion.
Preferably, the demarcation strip and spacer structure and the adhesive portion are separately formed.
Filter core provided by the utility model makes filtration fraction into multiple smaller fibres by setting demarcation strip in adhesive portion
It is Nian Jie with adhesive portion to tie up perineurium, is that fiber-film bundle is not easy in a jumble, meanwhile, the setting of demarcation strip also improves filter house and end
The reliability of connection effectively can avoid filter house from coming off.
Description of the drawings
By referring to the drawings to the description of the utility model embodiment, the above-mentioned and other mesh of the utility model
, feature and advantage will be apparent from, in the accompanying drawings：
Fig. 1 shows the utility model filter cartridge construction schematic diagram；
Fig. 2 shows the utility model filter core partial schematic sectional views；
Fig. 3 shows bonding end schematic front view provided by the utility model
Fig. 4 shows that first embodiment is bonded end internal structure schematic diagram；
Fig. 5 shows that second embodiment is bonded end internal structure schematic diagram；
Fig. 6 shows second embodiment auxiliary bonding portion structure diagram；
Fig. 7 shows that 3rd embodiment is bonded end internal structure schematic diagram.
Specific embodiment
The utility model is described below based on embodiment, but the utility model is not restricted to these implementations
Example.It should be understood by one skilled in the art that attached drawing is provided to the purpose of explanation provided herein, and attached drawing is not necessarily
It is drawn to scale.
Unless the context clearly requires otherwise, otherwise throughout the specification and claims " comprising ", "comprising" etc. are similar
Word should be construed to the meaning included rather than exclusive or exhaustive meaning；That is, it is containing for " including but not limited to "
Justice.
In the description of the present invention, it is to be appreciated that term " first ", " second " etc. are only used for description purpose,
And it is not intended that instruction or hint relative importance.In addition, in the description of the present invention, unless otherwise indicated, it is " more
It is a " it is meant that two or more.
As shown in Figs. 1-2, the utility model provides a kind of filter core, including filter house 20 and for fixing the filter house 20
End 10, the filter house 20 be preferably hollow fiber membrane bundle, for being filtered to raw water.One end of the filter house 20
It is bonded in by way of injecting glue in the end 10.The end 10 includes adhesive portion 110 and end closure 120, the bonding
Portion 110 is tubular construction, the first end for being connected to the adhesive portion 110 of the sealing of end closure 120, by the adhesive portion
110 first end closing.The first end of the filter house 20 is inserted into the adhesive portion 110 by one end of the adhesive portion 110
It is interior and be bonded in by way of injecting glue in the adhesive portion 110.In the end of the filter house 20 and the end closure 120
Water collection chamber 201 is provided between inner wall, connecting tube 121, the connecting tube 121 and the collection are provided on the end closure 120
Water cavity 201 connects, for the water collection chamber 201 to be connected with external water route.
In order to improve the reliability that the filter house 20 is connect with the adhesive portion 110, it is provided in the adhesive portion 110
Auxiliary bonding portion, the auxiliary bonding portion increases the filter house 20 and the bond area of the adhesive portion 110, so as to improve
The reliability that the fiber-film bundle 20 is bonded.
As shown in figure 4, in a preferred embodiment, the auxiliary bonding portion 130 can be included in the adhesive portion
Spacer structure 131 in 110, the spacer structure 131 are connected on the inner wall of the adhesive portion 110, it is preferable that the interval
Structure 131 is platy structure, alternatively, in feasible embodiment, the spacer structure 131 can also be arranged to rod-like structure
Deng.The filter house 20 is be bonded with 110 inner wall of adhesive portion and the spacer structure 131 simultaneously, increases the filter house 20
Bond area while, the spacer structure 131 also plays certain supporting role to the filter house 20, further improves
The bonding reliability of the filter house 20.It, can also be by the inner wall of the adhesive portion 110 furthermore in more preferably embodiment
Non- even surface is made with the side wall of the spacer structure, to increase the connection area of bonding, makes connection more firm.
As shown in Figure 5,6, in another embodiment, the auxiliary bonding portion 130 includes demarcation strip 134, the demarcation strip
134 are connected on the inner wall of the adhesive portion 110, and the adhesive portion 110 is divided into two parts, the demarcation strip along its axial direction
On 134 setting separate hole 135, the filter house 20 may pass through it is described separation hole 135 the side of the demarcation strip 134 with it is described
Adhesive portion 110 is bonded.Further, in the present embodiment, the auxiliary bonding portion 130 can also include the spacer structure
131, the spacer structure 131 connect with the demarcation strip 134 and positioned at close to the side of the end closure 120, the interval
The setting of structure 131 further increases the bond area of the filter house 20.
On the one hand the setting of the spacer structure 131 and/or the demarcation strip 134 increases the bonding of the filter house 20
Area makes the bonding reliability higher of the filter house 20.On the other hand, the spacer structure 131 and/or the demarcation strip
134 also are able to that multiple regions will be divided into the adhesive portion 110, and the filter house 20 is divided into smaller fiber-film bundle is adhered to
In each region, small fiber-film bundle is easily woven to the shapes such as U-shaped, flower pattern or pigtail type, in filter core in use, such structure
It is easily cleaned, and is less likely to be damaged or in a jumble
As described in Figure 7, in other embodiments, the auxiliary bonding portion is forms on the inner wall of the adhesive portion 110
Non- even surface 136, the non-even surface 136 can pass through sets groove and/or convex shaped on 110 inner wall of adhesive portion
Into or formed in other manners, such as on internal face carry out wire-drawing operation, be threaded, frosting etc. be set.
The utility model also provides a kind of bonding end, and the bonding end is the middleware for making the filter core, i.e., first
First processing forms the bonding end, and the first end of the filter house 20 is bonded with the Nian Jie end by way of injecting glue,
Then the bonding end is processed further forming the adhesive portion 110 being bonded together with the filter house 20,
It installs the end closure 120 additional in the adhesive portion 110 and forms the filter core.
Specifically, as shown in Figure 3,4, bonding end 100 provided by the utility model is the tubular structure with bottom, is wrapped
Adhesive portion 110 and bottom 140 are included, the adhesive portion 110 is cylindrical in shape structure, and the bottom 140 is in lid-like, the bottom
140 are sealably coupled to the first end of the adhesive portion 110, or both integrated molding.
Glue injection part 141 is provided on the bottom 140, through-hole, the glue injection part 141 are formed in the glue injection part 141
The inner and outer of 140 lid-like of bottom is connected, can be noted by the glue injection part 141 to the inside of the bottom 140
It is be bonded for the filter house 20 to be carried out with adhesive portion 110 to enter glue.The glue injection part 141 can be arranged on the bottom
On 140 side wall or bottom wall, alternatively, the glue injection part 141 can also be provided with according to demand it is multiple.Preferably, the bottom
Diversion trench 142 is provided on the bottom wall of 140 insides, and the through-hole in the glue injection part 141 is located at the port of 140 inside of bottom
It is connected with the diversion trench 142, glue is enable to be flowed into the diversion trench 142 by the glue injection part 141, the diversion trench
142 make glue distribution more uniform.
The adhesive portion 110 is tubular construction, and the bottom 140 is connected to the first end of the adhesive portion 110.It is described viscous
The inside of socket part 110 is provided with the auxiliary bonding portion for improving the filter house 20 and 110 connection reliability of adhesive portion
130, it is preferable that the auxiliary bonding portion 130 is arranged on the first end of the adhesive portion 110, alternatively, close to the adhesive portion
The position of 110 first ends.
In a preferred embodiment, the auxiliary bonding portion 130 includes spacer structure 131, and the spacer structure 131 is excellent
Be selected as platy structure, the platy structure can be arranged to arbitrary shape, such as can be rectangle, ellipse, diamond shape etc. or
Person may also be arranged to as arbitrary irregular shape.The both ends of the spacer structure 131 and the inner wall of the adhesive portion 110 connect
It connects.Preferably, the spacer structure 131 is provided with multiple, and multiple spacer structures 131 are by the inside of the adhesive portion 110
It is divided into multiple regions, corresponding can be put into a fiber-film bundle in the filter portion 20 in each region, and by the filter house 20
It is Nian Jie with the inner wall of spacer structure 131 and the adhesive portion 110.Further, multiple spacer structures 131, which intersect, sets
It puts to form network.Preferably, the adhesive portion 110, bottom 140 and auxiliary bonding portion 130 are integrally formed.
Preferably, the auxiliary bonding portion 130 is connected at the first end of the adhesive portion 110, the auxiliary bonding portion
130 there are gaps between the edge of 140 bottom wall of bottom and the bottom wall of the bottom 140, and the gap is for glue
It circulates between each region being divided into the auxiliary bonding portion 130, ensures flow into glue in each region.Further, exist
In the present embodiment, in order to improve the reliability that the filter house 20 is bonded, intercommunicating pore can be opened up on the spacer structure 131
On the one hand adjacent regional connectivity can be made more convenient, the opposing party of glue circulation by (not shown), the intercommunicating pore
Face, glue can be remained in the intercommunicating pore during bonding, further improve the reliability that the filter house 20 is bonded.More into one
Step ground can also set groove 132, preferably at the edge that the spacer structure 131 is not connect with 110 inner wall of adhesive portion
Ground, the groove 132 are arranged on edge of the spacer structure 131 far from the bottom 140, and the groove 132 is formed as it
Opening size is less than the shape of its inside dimension, such as can be swallow-tail form or analogous shape, after the completion of injecting glue, the groove
132 can be immersed in glue, and the groove 132 can equally improve the bonding reliability of the filter house 20 after the completion of bonding.
Further, in order to facilitate the adhesive portion 110, bottom 140 and auxiliary bonding portion 130 one by way of injection
Body is formed, and the auxiliary bonding portion 130 is connect simultaneously with the inner wall of the adhesive portion 110 and the inner wall of the bottom 140, and
And it is formed on the spacer structure 131 with the 142 corresponding position of diversion trench on 140 bottom wall of bottom along the bonding
The axial gap 133 completely through the spacer structure 131 in portion 110,133 one side of gap can be by the spacer structure
The 131 each regional connectivities being separated into, enable glue to circulate between each region, on the other hand the setting of the gap 133,
Also so that the bonding end 100 is conveniently stripped in injection molding.Also, after the completion of filter core film bonding, in the gap
Glue can be filled at 133, glue Nian Jie with the spacer structure 131 can be integrally formed.
Also, in the present embodiment, since the filter house 20 is divided into the region pair being separated into the spacer structure 131
The smaller fiber-film bundle answered in a jumble or can damage to avoid film wire, in addition, small fiber-film bundle is easily woven to U-shaped, flower
The shapes such as type or pigtail type in filter core in use, such structure is easily cleaned, and are less likely to be damaged or in a jumble.
In another preferred embodiment, as shown in Figure 5,6, the auxiliary bonding portion 130 includes demarcation strip 134, institute
Demarcation strip 134 is stated to be connected on the inner wall of the adhesive portion 110.The demarcation strip 134 is preferably and 110 inside of the adhesive portion
Cross-sectional shape and size are identical, and the adhesive portion 110 can be divided into two parts in the axial direction by the demarcation strip 134,
Also, complete injecting glue close to the side of the bottom 140.It is provided on the demarcation strip 134 and separates hole 135, the separation
Hole 135 be provided with it is multiple, the end of the filter house 20 may pass through the separation hole 135 be located at the demarcation strip 134 with it is described
Between bottom 140, and it is Nian Jie with the inner wall of the adhesive portion 110 with the demarcation strip 134.The setting for separating hole 135 makes
The filter house 20 is divided into multiple smaller fiber-film bundles and is bonded.Preferably, in the present embodiment, the auxiliary bonding portion
130 further include spacer structure 131, and the spacer structure 131 is connected on the demarcation strip 134, also, the spacer structure
131 are located at close to the side of the bottom 140.Preferably, each the region corresponding position being divided into the spacer structure 131
Corresponding with the separation hole 135, the end of the filter house 20 can be to pass through the separation hole 135, and is located at the interval
In the region that structure 131 is divided into, and it is be bonded with the spacer structure 131, the inner wall of adhesive portion 110 and the demarcation strip 134.
Preferably, in the present embodiment, the auxiliary bonding portion 130 and 140 split shape of the adhesive portion 110 and bottom
The adhesive portion 110 can be installed into, the auxiliary bonding portion 130 by the various ways such as being clamped, being threadedly coupled or be bonded
It is interior, and the spacer structure 131 is made to be located at close to the side of the bottom 140.Preferably, the auxiliary bonding portion 130 passes through
The demarcation strip 134 is connect with the inner wall of the adhesive portion 110, also, the demarcation strip 134 and 110 inner wall of adhesive portion
Between preferably be tightly connected, so that glue can be made not flow through the demarcation strip 134 in injecting glue, so as to make the filtering
The bonding in portion 20 is cleaner and tidier.When the auxiliary bonding portion 130 is by being clamped or being threadedly coupled or being installed to the adhesive portion 110
When interior, the card slot of the clamping or the screw thread of threaded connection can cause after injecting glue between filter house 20 and bonding end 100
Connection more fasten.
In the present embodiment, the cross-sectional area in the separation hole 135 on the demarcation strip 134 divides than the spacer structure 131
Every region cross-sectional area it is small, in this way, when injecting glue, glue can be filled between the demarcation strip 134 and bottom 140 without fibre
The space of perineurium is tieed up, after the glue solidifies, the demarcation strip 134 can be supported this glue after partially solidified, Ke Yijin
One step ensures the reliability that the filter house 20 is bonded.Also, the separation hole 135 has certain beam to the filter house 20
Effect is tied up, it can or damage mixed and disorderly to avoid filter house 20.
In another embodiment, as shown in fig. 7, the auxiliary bonding portion 130 is included in 110 inner wall of adhesive portion
The non-even surface 136 of upper formation, the non-even surface 136 can improve reliable Nian Jie with 110 inner wall of adhesive portion of glue
Property, so as to improve the reliability that the filter house 20 is bonded.Preferably, the non-even surface 136 can be in the adhesive portion
Slot, protrusion, screw thread, frosting etc. are formed on 110 inner walls can arbitrarily improve the knot of the 110 inner wall coarse degree of adhesive portion
Structure.
It is readily apparent that, it in the above-described embodiments, can be by the inner wall of the adhesive portion 110 and the spacer structure
131 are set to the non-even surface 136 with the bonding plane of glue.
The method for making filter core provided by the utility model includes the following steps：
The bottom 140 of the bonding end 100 is made to be located at downside, the adhesive portion 110 is located at upside placement, by the mistake
The first end in filter portion 20 is put into the bonding end 100, it is preferable that the filter house 20 is divided into multiple tunica fibrosa tow, often
A film wire beam corresponds to the region that an auxiliary bonding portion 130 is divided into, and sets a tunica fibrosa group 20 in each region, then
Glue is injected into the bottom 140 by the glue injection part 141 on the bottom 140, glue is along 140 bottom of bottom
Diversion trench 142 on wall is flowed in each region.With the increase of glue injection rate, glue can enter the adhesive portion 110
It is interior, it is preferable that the injection rate of glue makes the glue in the adhesive portion 110 not have the auxiliary bonding portion 130 to be advisable.Glue is noted
After the completion of entering, after treating glue condensation, the bottom 140 is detached with the adhesive portion 110, it is preferable that pass through the side of cutting
Formula cuts away the bottom 140, and the end closure 120 then is sealably coupled to the adhesive portion 110 and the bottom again
140 junction is the making for completing the filter core.
Filter core provided by the utility model in the adhesive portion 110 of end 10 by setting demarcation strip 134 to make filter house 20
Multiple smaller fiber-film bundles are can be divided into, film wire caused by avoiding fiber-film bundle excessive is mixed and disorderly, while additionally provides filter house 120
Bonding reliability higher.
For those skilled in the art it is easily understood that under the premise of not conflicting, above-mentioned each preferred embodiment can be free
Ground combination, superposition.
It should be appreciated that above-mentioned embodiment is only exemplary, and not restrictive, without departing from the utility model
In the case of basic principle, those skilled in the art can be directed to the various apparent or equivalent modification that above-mentioned details is made
Or replace, all it is included in the right of the utility model.
Claims (17)
1. a kind of filter core, which is characterized in that including filter house and end, the end includes adhesive portion and end closure, described viscous
Socket part includes tubular structure, and the end closure is connected to one end of the tubular structure, and one end of the filter house is adhered to institute
It states in adhesive portion, demarcation strip is provided in the adhesive portion, be provided on the demarcation strip and separate hole, the filter house passes through
It is bonded in the adhesive portion behind the separation hole.
2. filter core according to claim 1, which is characterized in that the demarcation strip is connected on the inner wall of the adhesive portion,
And the adhesive portion is separated into two parts in an axial direction.
3. filter core according to claim 2, which is characterized in that the separation hole is provided with multiple.
4. filter core according to claim 3, which is characterized in that the filter house includes multiple fiber-film bundles, multiple described
Fiber-film bundle is adhered to after passing through the separation hole in the adhesive portion.
5. according to the filter core described in one of claim 1-4, which is characterized in that spacer structure is additionally provided in the adhesive portion,
The spacer structure is located at close to the side of the end closure, and multiple by being separated into sagittal plane on the inside of the adhesive portion
Region.
6. filter core according to claim 5, which is characterized in that the region for separating hole and being separated into the spacer structure
It corresponds.
7. filter core according to claim 5, which is characterized in that the spacer structure is connected to the demarcation strip and/or institute
It states on the inner wall of adhesive portion.
A kind of 8. bonding end, for making the filter core described in one of claim 1-7, which is characterized in that the bonding end
Including adhesive portion, bottom and demarcation strip, the adhesive portion is tubular structure, and the bottom is arranged on the one of the tubular structure
End, the demarcation strip are arranged in the adhesive portion, are provided on the demarcation strip and are separated hole.
9. bonding end according to claim 8, which is characterized in that glue injection part, the injecting glue are provided on the bottom
Portion is connected with the inside of the Nian Jie end.
10. bonding end according to claim 9, which is characterized in that the bottom is in lid-like, the lid-like
Bottom wall on be additionally provided with diversion trench.
11. bonding end according to claim 8, which is characterized in that the separation hole is provided with multiple.
12. bonding end according to claim 8, which is characterized in that the demarcation strip is connected to the interior of the adhesive portion
On wall, the adhesive portion is axially subdivided into two parts by the demarcation strip.
13. bonding end according to claim 8, which is characterized in that the bonding end further includes spacer structure, described
Spacer structure is arranged in the adhesive portion close to one end of the bottom.
14. bonding end according to claim 13, which is characterized in that the spacer structure is provided with multiple, Duo Gesuo
Multiple regions will be separated on the inside of the adhesive portion in sagittal plane by stating spacer structure.
15. bonding end according to claim 14, which is characterized in that the separation hole on the demarcation strip with it is described
The region that spacer structure is separated into corresponds.
16. the bonding end according to one of claim 13-15, which is characterized in that the spacer structure is connected to described
On demarcation strip and/or the inner wall of the adhesive portion.
17. the bonding end according to one of claim 13-15, which is characterized in that the demarcation strip and spacer structure with
The adhesive portion is separately formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720909427.2U CN207507274U (en) | 2017-07-25 | 2017-07-25 | Filter core and bonding end |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720909427.2U CN207507274U (en) | 2017-07-25 | 2017-07-25 | Filter core and bonding end |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207507274U true CN207507274U (en) | 2018-06-19 |
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ID=62531085
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720909427.2U Active CN207507274U (en) | 2017-07-25 | 2017-07-25 | Filter core and bonding end |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107433135A (en) * | 2017-07-25 | 2017-12-05 | 珠海格力电器股份有限公司 | The preparation method of filter core, bonding termination and filter core |
-
2017
- 2017-07-25 CN CN201720909427.2U patent/CN207507274U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107433135A (en) * | 2017-07-25 | 2017-12-05 | 珠海格力电器股份有限公司 | The preparation method of filter core, bonding termination and filter core |
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