CN201397447Y - Charging device - Google Patents
Charging device Download PDFInfo
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- CN201397447Y CN201397447Y CN2009200685573U CN200920068557U CN201397447Y CN 201397447 Y CN201397447 Y CN 201397447Y CN 2009200685573 U CN2009200685573 U CN 2009200685573U CN 200920068557 U CN200920068557 U CN 200920068557U CN 201397447 Y CN201397447 Y CN 201397447Y
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- netted electric
- charging device
- photosensitive drums
- opening ratio
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Abstract
The utility model provides a charging device which is arranged in image forming equipment and is used for charging the surface of a light-sensing drum which rotates towards the rotating direction. Thecharging device comprises a discharge electrode and a reticular electrode, and is arranged oppositely to the longitudinal direction of the light-sensing drum. The charging device charges the surfaceof the light-sensing drum by the reticular electrode which is arranged between the discharge electrode and the light-sensing drum. The reticular electrode comprises a first section and a second section. The first section is provided with a plurality of first pores and a first opening rate, the second section is provided with a plurality of second pores and a second opening rate, and the first opening rate is higher than the second opening rate, wherein the total length sum of any two parallel lines which are vertical to the longitudinal direction in terms of passing through areas of the plurality of pores on the reticular electrode is the same.
Description
Technical field
The utility model relates to a kind of charging device that is used for image forming equipment, in particular to a kind of charging device (scorotron) with mesh electrode.
Background technology
About forming image, step such as transmit and develop, deciding usually by photosensitive drum charging, the imaging of lasing ion bundle, toner and carry out by image forming equipment.Available charging technique comprises corona charging, roller charging and bristle charging.Wherein, the corona charging technology has the high charge benefits on uniformity, thereby is applied to general available laser image forming device continually.
Corona charging is in order to the surperficial construction electric field in photosensitive drums, and wherein the energy of electric field is high enough to the ionization ambient gas, thereby can make the surperficial contact ions air of photosensitive drums, and is recharged and has electric charge.Image quality depends on the current potential and the charging homogeneity of charged photosensitive drum surface.Therefore, a purpose of the present utility model is to make the surface of charged photosensitive drums reach predetermined voltage levvl, and the homogeneity of raising charging, thereby can provide preferable image quality, the charge step of photosensitive drums can be finished within short a period of time, and higher print speed can be provided.
The utility model content
The utility model relates to a kind of charging device, it has the mesh electrode that is divided at least two sections, and many second netted electric wires that mesh electrode further comprises many first netted electric wires that are positioned at first section and is positioned at second section, the feature of two sections is also inequality.For example, the distance longitudinally that between any two first adjacent netted electric wires, is parallel to photosensitive drums, be longer than between any two second adjacent netted electric wires and be parallel to distance longitudinally, or first netted electric wire and the second netted electric wire with different angle tilts, thereby different charging effects may be created on the surface of photosensitive drums by the mesh electrode of this two section.Therefore, such design can increase the current potential on the surface of charged photosensitive drums, and preferable charging homogeneity can be provided.Therefore, can provide preferable image quality.
According to the utility model, a kind of charging device that is configured in the image forming equipment is proposed, in order to surface charging to photosensitive drums.Photosensitive drums is with sense of rotation rotation and extension along the longitudinal.Charging device comprises sparking electrode and mesh electrode.The vertically configuration side by side of sparking electrode and mesh electrode and photosensitive drums.Mesh electrode is configured between sparking electrode and the photosensitive drums, and makes the ideal potential of the surface charging state arrival of photosensitive drums by this mesh electrode.In the utility model, mesh electrode is divided into first section and second section at least.First section has a plurality of first holes and first aperture opening ratio.Second section has a plurality of second holes and second aperture opening ratio.First aperture opening ratio is greater than second aperture opening ratio.In addition, equate perpendicular to the length summation of these wantonly longitudinally two parallel lines by a plurality of pore region on this mesh electrode.
For foregoing of the present utility model can be become apparent, preferred embodiment cited below particularly, and in conjunction with the accompanying drawings, be described in detail below.
Description of drawings
Fig. 1 is the side view of demonstration according to the part structure of the image forming equipment of embodiment of the present utility model.
Fig. 2 is the sectional view of the charging device of displayed map 1.
Fig. 3 is for showing the synoptic diagram according to the mesh electrode of embodiment of the present utility model.
Fig. 4 is for showing the synoptic diagram according to the mesh electrode of another embodiment of the present utility model.
Fig. 5 A is the synoptic diagram of the part of demonstration mesh electrode of the present utility model.
Fig. 5 B is the chart of demonstration along the surface potential of the line A-A ' of the photosensitive drums of Fig. 5 A.
Fig. 6 A is the synoptic diagram of the part of the mesh electrode of demonstration prior art.
Fig. 6 B is the chart of demonstration along the surface potential of the line B-B ' of the photosensitive drums of the prior art of Fig. 6 A.
Fig. 7 and 8 is the synoptic diagram that shows respectively according to the mesh electrode of other two embodiment of the present utility model.
The reference numeral explanation
P: paper
R: sense of rotation
S11～s16: pore region
S21～s25: pore region
D1, d1 ', d1 ": first distance
D2, d2 ', d2 ": second distance
D3, d3 ', d3 ": the 3rd distance
θ
1, θ
2, θ
3, θ
1', θ
2', θ
3', θ
1", θ
2", θ
3": angle
A1, A2, B1, B2, C1, C2: intersection point
10: charging device
20: photosensitive drums
20a: surface
100: image forming equipment
110: sparking electrode
120: mesh electrode
120 ': mesh electrode
120a, 120a ': first section
120b, 120b ': second section
120c, 120c ': the 3rd section
121: the first netted electric wires
121 (1): the first netted electric wire
121 (2): the first netted electric wire
122: the second netted electric wires
122 (1): the second netted electric wire
122 (2): the second netted electric wire
123: the three netted electric wires
The 123 (1): the 3rd netted electric wire
The 123 (2): the 3rd netted electric wire
121h: first hole
122h: second hole
123h: the 3rd hole
130: shell
190: information carrying beam
192: exposure device
194: developing apparatus
196: neutralizer
198: cleaning device
199: neutralizer
520: mesh electrode
520a: first section
520b: second section
520c: the 3rd section
522: the second netted electric wires
523: the three netted electric wires
620: mesh electrode
620a: first section
620b: second section
620c: the 3rd section
Embodiment
Please refer to Fig. 1 and Fig. 2, present embodiment provides charging device 10.This charging device is configured in the image forming equipment 100, and the surperficial 20a of photosensitive drums 20 is charged.Photosensitive drums 20 is rotated towards sense of rotation R, and towards longitudinal extension.Charging device 10 comprises sparking electrode 110 and mesh electrode 120.Sparking electrode 110 and photosensitive drums 20 relative configurations.Mesh electrode 120 is configured between sparking electrode 110 and the photosensitive drums 20, and with photosensitive drums 20 relative configurations, arrive ideal potential in order to make the surperficial 20a of photosensitive drums 20 by this mesh electrode.
The image forming equipment 100 that is presented at Fig. 1 comprises photosensitive drums 20, and it is cylindric, and along the sense of rotation R rotation that is presented at Fig. 1.Around photosensitive drums 20 and along sense of rotation R, image forming equipment 100 comprises charging device 10, exposure device 192, in order to emission information carrying beam 190, developing apparatus 194, transfer device 196, cleaning device 198 and neutralizer 199.Charging device 10 is configured on the surperficial 20a of photosensitive drums 20, and equably the surperficial 20a of photosensitive drums 20 is charged.Information carrying beam 190 is carried out exposing operation corresponding to image information, for example utilizes laser optical system to form electrostatic latent image on photosensitive drums 20.Developing apparatus 194 for example is the card casket that develops, and in order to applying toner by the foundation electrostatic latent image with the surperficial 20a attached to photosensitive drums 20, and makes the electrostatic latent image visualization, and then, sub-image is formed on the surperficial 20a of photosensitive drums 20 by the toner that develops.Transfer device 196 is transferred to the toner that develops on the paper P from the surperficial 20a of photosensitive drums 20.Cleaning device 198 cleanings remain in the toner on the photosensitive drums 20.Then, neutralizer 199 usefulness are so that the potential drop on the surperficial 20a of photosensitive drums 20 is extremely zero, so that next image forms the carrying out of program.
See also Fig. 2, it shows the sectional view of charging device 10.Charging device 10 comprises sparking electrode 110, mesh electrode 120 and shell 130.Sparking electrode 110 is configured in the shell 130.Sparking electrode 110 and mesh electrode 120 are aligned in vertical y of photosensitive drums 20.Mesh electrode 120 is configured between sparking electrode 110 and the photosensitive drums 20, and makes the surperficial 20a of photosensitive drums 20 arrive ideal potential by this mesh electrode.
As shown in Figure 3, in embodiment of the present utility model, mesh electrode 120 comprises the first section 120a and the second section 120b.In addition, the first section 120a has a plurality of first hole 121h and first aperture opening ratio, and the second section 120b has a plurality of second hole 122h and second aperture opening ratio.First aperture opening ratio is greater than second aperture opening ratio.Because the big aperture opening ratio of the first section 120a makes the relatively large discharge current of sparking electrode 110 be passed to surperficial 20a.Therefore, in the first section 120a, surperficial 20a is charged to and is higher than the voltage levvl that uses existing mesh electrode.In addition, along wantonly two parallel lines ax
1With ax
2Pore region on mesh electrode is equal in fact, these two parallel lines ax
1With ax
2Crossed the first section 120a and the second section 120b, and perpendicular to vertical y.Therefore, the current potential of the surperficial 20a of charged photosensitive drums 20 can reach in order to obtaining the predetermined ideal potential of high-quality image, and preferable charging homogeneity can be provided.Therefore, can provide preferable image quality.
In following examples, will explain with the example of mesh electrode with three sections.Yet under the situation that does not deviate from scope of the present utility model, mesh electrode also can be divided at least two sections.
As shown in Figure 4, in the present embodiment, mesh electrode 120 is divided into three section 120a, 120b and the 120c with different aperture opening ratios.The charging of the surperficial 20a of photosensitive drums 20 determines via mesh electrode, and can obtain different charge effects according to the different aperture opening ratio of these sections.Therefore, the current potential of the surperficial 20a of charged photosensitive drums can be near predetermined ideal potential.
The first section 120a is positioned at the upstream side with respect to the second section 120b of the sense of rotation R of photosensitive drums 20, and the 3rd section 120c is positioned at the downstream with respect to second section of the sense of rotation R of photosensitive drums 20.Surface 20a at first in the first section 120a by initial charge, in the second section 120b, be recharged then with higher speed, the current potential of last surperficial 20a presents in the 3rd section 120c evenly and steady state (SS).
Below will describe the mesh electrode 120 of present embodiment in detail.As shown in Figure 4, mesh electrode 120 comprises many first netted electric wires 121, many second netted electric wires 122 and many articles the 3rd netted electric wires 123, and it is configured in the first section 120a, the second section 120b and the 3rd section 120c respectively.The first netted electric wire 121 forms a plurality of first hole 121h in the first section 120a, so that the first section 120a has first aperture opening ratio.The second netted electric wire 122 forms a plurality of second hole 122h in the second section 120b, thereby can make the second section 120b have second aperture opening ratio.The 3rd netted electric wire 123 forms a plurality of the 3rd hole 123h in the 3rd section 120c, so that the 3rd section 120c has the 3rd aperture opening ratio.
In the present embodiment, because the 3rd section 120c can't have very big influence to the current potential of the surperficial 20a of photosensitive drums 20, so the 3rd aperture opening ratio may be designed to be equal to or less than second aperture opening ratio of the second section 120b.Though the 3rd aperture opening ratio is less than second aperture opening ratio at this illustrated embodiment, the utility model is not subject to this.
In order to make the charge effects that those skilled in the art easily understand in the present embodiment to be provided, wherein mesh electrode 120 is divided into three sections, below provide Fig. 5 A and 5B to change with the charging potential of the surperficial 20a of the photosensitive drums 20 of 120c via section 120a, the 120b of present embodiment, and provide Fig. 6 A and 6B in order to the charging potential variation via the surperficial 20a of the photosensitive drums 20 of section 120a ', the 120b ' of the mesh electrode 120 ' of prior art and 120c ' to be described in order to explanation.Yet those skilled in the art can easily understand data and the usefulness that is provided as explanation of data in the prior art in the present embodiment, but not in order to restriction the utility model.
Please refer to Fig. 5 A, 5B, 6A and 6B.Fig. 5 A is the synoptic diagram of the part of demonstration mesh electrode in the present embodiment.Fig. 5 B for show when the mesh electrode 120 of Fig. 5 A when an A moves to a some A ', the current potential change chart of surperficial 20a.Fig. 6 A is the synoptic diagram of the part of the mesh electrode of demonstration prior art.Fig. 6 B for show when the mesh electrode 120 ' of Fig. 6 A when a B moves to a some B ', the current potential change chart of surperficial 20a.In addition,, measured respectively from the some A of the present embodiment of Fig. 5 A to the current potential of putting A ' and prior art from the some B of Fig. 6 A to the surperficial 20a that puts B '.Be understood that from Fig. 5 B when surperficial 20a entered the second section 120b of mesh electrode 120 of present embodiment, the current potential of the surperficial 20a of photosensitive drums 20 arrived 200V.In comparison, in the prior art of Fig. 6 B, when surperficial 20a entered the second section 120b ', the current potential of the surperficial 20a of photosensitive drums 20 only reached 120V.In addition, in the present embodiment, when surperficial 20a entered the 3rd section 120c, the current potential of surperficial 20a reached 630V, and it is near the predetermined voltage in order to the 640V that forms high-quality image.Yet when surperficial 20a entered the 3rd section 120c ', in the prior art, the current potential of the surperficial 20a that is obtained was far below predetermined voltage.
Therefore, use the structure of the mesh electrode 120 of present embodiment can make advantage and the acquisition good charging benefits on uniformity of photosensitive drums near ideal potential.
In the present embodiment, an end of the netted electric wire of every in section is aimed at the other end at the netted electric wire of the vicinity of same section.That is to say that the two ends of aligning have identical y coordinate.For example, refer again to Fig. 4, an end a1 (x of the first netted electric wire 121 (1) in the first section 120a
1, y
1) with an end a2 (x of the first netted electric wire 121 (2)
2, y
1) aim at an end b1 (x of the second netted electric wire 122 (1) in the second section 120b
3, y
2) with an end b2 (x of the second netted electric wire 122 (2)
4, y
2) aim at, and an end c1 (x of the 3rd netted electric wire 123 (1) in the 3rd section 120c
5, y
3) with an end c2 (x of the 3rd netted electric wire 123 (2)
6, y
3) aim at, such design can make perpendicular to these wantonly longitudinally two parallel lines and individually intersect at a plurality of intersection points with at least one the first netted electric wires, at least one the second netted electric wires and at least one 3rd netted electric wires, and these wantonly two parallel lines equate with the number of the intersection point of those netted electric wires, then these wantonly two parallel lines are equal by the length summation of a plurality of pore region on this mesh electrode longitudinally perpendicular to this, so can improve the homogeneity of charging.Below will describe it in detail.
For example, in Fig. 4, first axle ax
1With the second axis ax
2Cross the first section 120a, the second section 120b and the 3rd section 120c, and perpendicular to mesh electrode 120 vertically.First axle ax
1One of them intersects at intersection point A1 with the first netted electric wire 121, one of them intersects at intersection points B 1 with the second netted electric wire 122, and one of them intersects at intersection point C1 with the 3rd netted electric wire 123, and the second axis ax
2One of them intersects at intersection point A2 with the first netted electric wire 121 respectively, one of them intersects at intersection points B 2 with the second netted electric wire 122, and one of them intersects at intersection point C2 with the 3rd netted electric wire 123, respectively intersects at 3 intersection points, therefore, and first axle ax
1The summation of pore region s11 on the first section 120a and the length value of s12 equals the second axis ax
2The summation of pore region s21 on the first section 120a and the length value of s22, first axle ax
1The summation of pore region s13 on the second section 120b and the length value of s14 equals the second axis ax
2The summation of pore region s23 on the second section 120b and the length value of s24, and first axle ax
1The summation of pore region s15 on the 3rd section 120c and the length value of s16 equals the second axis ax
2The length value of pore region s25 on the 3rd section 120c.So, along first axle ax
1The summation size of length value of pore region s11, s12, s13, s14, s15 and s16 equal along the second axis ax
2The summation size of length value of pore region s21, s22, s23, s24 and s25.
In addition, as shown in Figure 4, in the structure of the mesh electrode 120 of present embodiment, be parallel to first of vertical y between any two first adjacent netted electric wires 121 and come longly than the second distance d2 that any two second adjacent 122 in netted electric wires are parallel to vertical y apart from d1, and the angle θ that the first netted electric wire 121 is tilted
1The angle θ that is tilted greater than the second netted electric wire 122
2Moreover any two the 3rd adjacent 123 in netted electric wires are parallel to the 3rd shorter than the second distance d2 that any two second adjacent 122 in netted electric wires are parallel to vertical y apart from d3 of vertical y.The angle θ that the second netted electric wire 122 is tilted
2The angle θ that is tilted greater than the 3rd netted electric wire 123
3
In addition, Fig. 7 and 8 shows respectively according to the figure of two embodiment in addition of the present utility model.In Fig. 7, mesh electrode 520 is divided into the first section 520a, the second section 520b and the 3rd section 520c, and these three sections have several first netted electric wires 521, several second netted electric wires 522 and several the 3rd netted electric wires 523 respectively.The first netted electric wire 521 forms a plurality of first hole 521h in the first section 520a, so that the first section 520a has first aperture opening ratio.The second netted electric wire 522 forms a plurality of second hole 522h in the second section 520b, so that the second section 520b has second aperture opening ratio.The 3rd netted electric wire 523 forms a plurality of the 3rd hole 523h in the 3rd section 520c, so that the 3rd section 520c has the 3rd aperture opening ratio.The 3rd netted electric wire 523 of the first netted electric wire 521 of the first section 520a, the second netted electric wire 522 of the second section 520b and the 3rd section 520c is respectively with angle same θ
1', θ
2' and θ
3' tilt.521 in any two first adjacent netted electric wires first longer than the second distance d2 ' that any two second adjacent 522 in netted electric wires are parallel to vertical y apart from d1 ', thus can make the aperture opening ratio of the aperture opening ratio of the first section 520a greater than the second section 520b.Correspondingly, the second distance d2 ' that any two second adjacent 522 in netted electric wires are parallel to vertical y is the 3rd longer apart from d3 ' than what be parallel to vertical y at any two the 3rd adjacent 523 in netted electric wires, thereby can make the aperture opening ratio of the aperture opening ratio of the second section 520b greater than the 3rd section 520c.
In Fig. 8, mesh electrode 620 is divided into the first section 620a, the second section 620b and the 3rd section 620c, and these three sections have several first netted electric wires 621, several second netted electric wires 622 and several the 3rd netted electric wires 623 respectively.The first netted electric wire 621 forms a plurality of first hole 621h in the first section 620a, so that the first section 620a has first aperture opening ratio.The second netted electric wire 622 forms a plurality of second hole 622h in the second section 620b, so that the second section 620b has second aperture opening ratio.The 3rd netted electric wire 623 forms a plurality of the 3rd hole 623h in the 3rd section 620c, so that the 3rd section 620c has the 3rd aperture opening ratio.Be parallel between any two first adjacent netted electric wires vertical y first apart from d1 "; be parallel to the second distance d2 of vertical y between any two second adjacent netted electric wires ", and be parallel between any two the 3rd adjacent netted electric wires vertical y the 3rd apart from d3 " equate.First netted electric wire 621, second netted electric wire 622 of mesh electrode 620 and the 3rd netted electric wire 623 are respectively with angle θ
1", θ
2" and θ
3" tilt angle θ
2" greater than angle θ
1", angle θ
3" greater than angle θ
2", thereby can make the aperture opening ratio of the aperture opening ratio of the first section 620a greater than the second section 620b, and make the aperture opening ratio of the aperture opening ratio of the second section 620b greater than the 3rd section 620c.
In addition, best but nonrestrictive situation is, in the present embodiment of the present utility model, equates with the width of the 3rd section at first section, second section of x axis direction.
In sum, though the utility model with the preferred embodiment disclosure as above, yet it is not in order to limit the utility model.Those skilled in the art under the situation that does not break away from spirit and scope of the present utility model, can do various variations and improvement.Therefore, protection domain of the present utility model is as the criterion with the scope that appending claims was defined.
Claims (14)
1. a charging device is arranged in image forming equipment, in order to charging towards sense of rotation rotation and towards the surface of the photosensitive drums of longitudinal extension, it is characterized in that described charging device comprises:
Sparking electrode, dispose relative with described photosensitive drums; And
Mesh electrode is configured between described sparking electrode and the described photosensitive drums, and dispose relative with described photosensitive drums, and in order to control the charged state on the described surface of described photosensitive drums by described mesh electrode, described mesh electrode comprises:
First section, it has a plurality of first holes and first aperture opening ratio; And
Second section, it has a plurality of second holes and second aperture opening ratio, and wherein said first aperture opening ratio is greater than described second aperture opening ratio;
Wherein, equate perpendicular to the length summation of described wantonly longitudinally two parallel lines by a plurality of pore region on the described mesh electrode.
2. charging device as claimed in claim 1 is characterized in that, with respect to the described sense of rotation of described photosensitive drums, described first section is positioned at the upstream position of described second section.
3. charging device as claimed in claim 1, it is characterized in that, described mesh electrode further comprises many first netted electric wires that are arranged in described first section and is arranged in many second netted electric wires of described second section, the wherein said a plurality of first netted electric wire forms described a plurality of first hole, and the described a plurality of second netted electric wire forms described a plurality of second hole.
4. charging device as claimed in claim 3 is characterized in that, is parallel to described first distance longitudinally between any two first adjacent netted electric wires, is longer than between any two second adjacent netted electric wires to be parallel to described second distance longitudinally.
5. charging device as claimed in claim 3 is characterized in that, the described a plurality of first netted electric wire and the described a plurality of second netted electric wire are with different angle tilts.
6. charging device as claimed in claim 5 is characterized in that, the described a plurality of first netted electric wire is with first angle tilt, and the described a plurality of second netted electric wire is with second angle tilt, and described first angle is greater than described second angle.
7. charging device as claimed in claim 3 is characterized in that, described mesh electrode further comprises:
The 3rd section, it has a plurality of the 3rd holes and the 3rd aperture opening ratio.
8. charging device as claimed in claim 7 is characterized in that, with respect to the described sense of rotation of described photosensitive drums, described the 3rd section is positioned at the downstream position of described second section.
9. charging device as claimed in claim 7 is characterized in that, described mesh electrode further comprises many articles the 3rd netted electric wires that are arranged in described the 3rd section, and wherein said a plurality of the 3rd netted electric wire forms described a plurality of the 3rd hole.
10. charging device as claimed in claim 9, it is characterized in that, be parallel to described the 3rd distance longitudinally between any two the 3rd adjacent netted electric wires, be shorter than between any two second adjacent netted electric wires and be parallel to described second distance longitudinally, and described second aperture opening ratio is greater than described the 3rd aperture opening ratio.
11. charging device as claimed in claim 9 is characterized in that, is parallel to described the 3rd distance longitudinally between any two the 3rd adjacent netted electric wires, equals to be parallel to described second distance longitudinally between any two second adjacent netted electric wires.
12. charging device as claimed in claim 9 is characterized in that, described a plurality of the 3rd netted electric wire is skewed.
13. charging device as claimed in claim 1 is characterized in that, described mesh electrode further comprises:
The 3rd section, it has a plurality of the 3rd holes and the 3rd aperture opening ratio, and wherein said second aperture opening ratio is greater than described the 3rd aperture opening ratio.
14. charging device as claimed in claim 13 is characterized in that, with respect to the described sense of rotation of described photosensitive drums, described the 3rd section is positioned at the downstream position of described second section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200685573U CN201397447Y (en) | 2009-03-06 | 2009-03-06 | Charging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200685573U CN201397447Y (en) | 2009-03-06 | 2009-03-06 | Charging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201397447Y true CN201397447Y (en) | 2010-02-03 |
Family
ID=41619968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200685573U Expired - Fee Related CN201397447Y (en) | 2009-03-06 | 2009-03-06 | Charging device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201397447Y (en) |
-
2009
- 2009-03-06 CN CN2009200685573U patent/CN201397447Y/en not_active Expired - Fee Related
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Legal Events
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100203 Termination date: 20130306 |