CN212623583U - Developing box - Google Patents
Developing box Download PDFInfo
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- CN212623583U CN212623583U CN202021420422.1U CN202021420422U CN212623583U CN 212623583 U CN212623583 U CN 212623583U CN 202021420422 U CN202021420422 U CN 202021420422U CN 212623583 U CN212623583 U CN 212623583U
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- developing roller
- developing
- driving side
- developing cartridge
- roller shaft
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Abstract
The utility model discloses a developing box, detachable install in imaging device, include: a housing; a developing roller rotating about an axis extending in a first direction, the developing roller having a developing roller shaft made of metal; a powder feeding roller having a powder feeding roller shaft made of metal; a driving gear disposed at a driving side of the housing in a first direction; an electrode including a first contact portion, a second contact portion, and an intermediate electrical connection portion connecting the first contact portion and the second contact portion, the intermediate electrical connection portion electrically connecting the first contact portion and the second contact portion; the second contact part is positioned on the driving side of the shell, the first contact part is positioned on the opposite side of the driving side of the shell, and the opposite side of the driving side and the driving side are two opposite ends of the shell in the first direction; the first contact part and the detected component are positioned on the opposite side of the driving side of the shell.
Description
Technical Field
The utility model relates to a detachable installs the development box in imaging device, especially relates to an electrode in development box.
Background
The related art has proposed an image forming apparatus for electrophotographic printing an image, in which a process cartridge is detachably mounted. The process cartridge includes a developing cartridge having a developing roller, and a photosensitive cartridge detachably mounted to the photosensitive cartridge and having a photosensitive drum.
As such a developing cartridge, there are included: a developing roller bearing a developer; a powder feeding roller for supplying the developer to the developing roller; and an electrode member electrically connected to the rotation shafts of the developing roller and the powder feeding roller.
In the existing developing cartridge, it is common to integrally provide a feeding electrode member at one side end in a length direction of the developing cartridge to achieve electrical connection of the image forming apparatus and the developing roller.
SUMMERY OF THE UTILITY MODEL
The main object of the present invention is to provide a developing cartridge, the electrode of the developing cartridge need not be limited to one side of the integrated design in the length direction of the developing cartridge, and the design freedom of the electrode is increased. The utility model discloses a realize through following technical scheme:
a developing cartridge detachably mountable to an image forming apparatus, comprising:
a housing having a developer accommodating portion;
a developing roller rotatably supported by the housing, the developing roller rotating about an axis extending in a first direction, and having a developing roller shaft made of metal;
a powder feeding roller rotatably supported by the housing for feeding the developer to the developing roller, and having a powder feeding roller shaft made of metal;
a driving gear provided at a driving side of the housing in a first direction for engaging with a driving member in the image forming apparatus to receive a rotational driving force;
an electrode including a first contact portion contacting a power supply member in the image forming apparatus, a second contact portion contacting the developing roller shaft, and an intermediate electrical connection portion connecting the first contact portion and the second contact portion, the intermediate electrical connection portion electrically connecting the first contact portion and the second contact portion;
the second contact part is positioned on the driving side of the shell, the first contact part is positioned on the opposite side of the driving side of the shell, and the opposite side of the driving side and the driving side are two opposite ends of the shell in the first direction; the first contact part and the detected component are positioned on the opposite side of the driving side of the shell.
Preferably, the electrode further includes a bearing member that supports the developing roller shaft on a driving side of the housing, the bearing member being electrically connected to the developing roller shaft and supporting the developing roller shaft in a manner allowing the developing roller shaft to rotate.
Preferably, the bearing member supports both the developing roller shaft and the powder feeding roller shaft, and electrically contacts both the developing roller shaft and the powder feeding roller shaft.
Preferably, the developer accommodating portion of the housing has an upper cover and a lower cover, the upper cover being made of a conductive material and configured as a part of the intermediate electrical connection portion.
Preferably, the developer accommodating portion of the housing has an upper cover and a lower cover, the lower cover being made of a conductive material and configured as a part of the intermediate electrical connection portion.
Preferably, the detection device further includes a cover member that covers the detection target member, the cover member being provided on a side opposite to the driving side of the housing, the cover member being a part of the intermediate electrical connection portion.
Preferably, the first contact portion overlaps at least a part of the detection target member as viewed in an axial direction of the developing roller.
Preferably, the developing device further comprises a doctor blade for limiting the thickness of the developer layer on the surface of the developing roller, and the doctor blade is a part of the intermediate electrical connection portion.
Preferably, the device further comprises an integrated circuit chip arranged on the driving side.
Preferably, the integrated circuit chip is mounted on the developing cartridge through a chip holder, the integrated circuit chip including an electrical contact surface electrically contacting the image forming apparatus, the electrical contact surface being insulated from a portion of the electrode located on the driving side of the developing cartridge through the chip holder.
After the technical scheme is adopted, the utility model provides a new electrode realizes setting up the first electric contact of electrode and the electrode of imaging device's power supply part electric contact and the electrode second electric contact of electrode and developing roller axle electric contact respectively at the double-phase offside on developing box length direction through middle electric connection, through the design that utilizes the electrode to span the both sides on developing box's the length direction, increases the design degree of freedom of electrode. Through will being detected the part and first electric contact sets up the driving side offside at the developing cartridge casing simultaneously, set up driving gear and second electric contact simultaneously at the driving side of casing, can be so that the driving side of the casing of developing cartridge and the contralateral overall arrangement of drive are contralateral and reasonable more, and the space utilization of developing cartridge is higher, can be so that the structure of developing cartridge does compacter, and the size of developing cartridge can be miniaturized as far as possible.
Drawings
Fig. 1 is a schematic perspective view of a developing cartridge provided in embodiment 1 of the present invention;
fig. 2 is an exploded view of a part of an electrode in a developing cartridge provided in embodiment 1 of the present invention;
fig. 3 is a schematic structural view of electrical contact positions of respective parts of an electrode in a developing cartridge provided in embodiment 1 of the present invention;
fig. 4 is a schematic view of a partially exploded structure of a driving side of a developing cartridge provided in embodiment 1 of the present invention;
fig. 5 is a schematic view of a partially exploded structure of a developing cartridge provided in embodiment 1 of the present invention on the side opposite to the driving side;
fig. 6 is a schematic view of a partially exploded structure of a developing cartridge provided in embodiments 2, 3, and 4 of the present invention;
fig. 7 is a schematic perspective view of a developing cartridge provided in embodiment 5 of the present invention;
fig. 8 is a schematic structural view of embodiment 5 of the present invention after the driving side cover is removed.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
First, as shown in fig. 1 and 2, the developing cartridge of the present invention is detachably mounted in the image forming apparatus. The developing cartridge includes a casing 1, a developing roller 2, a handle 3, a driving gear 4, and an electric contact member 22. The housing 1 has a developer accommodating portion that can accommodate developer. The developing roller 2 is rotatably supported by the casing 1, and is rotatable about a rotation axis extending in a first direction, which is a longitudinal direction of the casing 1. The developing roller 2 and the handle 3 are disposed opposite to each other in the front-rear direction of the casing 1, the developing roller 2 is disposed on the front end side of the casing 1, and the handle 3 is disposed on the rear end side of the casing 1, the front-rear direction being perpendicular to the longitudinal direction. The driving gear 4 and the electric contact member 22 are disposed opposite to each other in the longitudinal direction of the housing 1, and in the longitudinal direction, the side of the housing 1 where the driving gear 4 is located is referred to as a driving side 10, and the side where the electric contact member 22 is located is referred to as a driving side-to-side 20. When the developing cartridge is mounted in the image forming apparatus and is in the process of image formation, the developing roller 2 in the developing cartridge needs to be electrically connected from the image forming apparatus, and the developing cartridge is provided with an electrode for electrically connecting a power supply member (not shown in the drawing) in the image forming apparatus and the developing roller 2 to supply power to the developing roller 2. Specifically, the electrode includes a first contact portion that contacts the above-described power supply member in the image forming apparatus, a second contact portion that contacts the developing roller shaft of the above-described developing roller, and an intermediate electrical connection portion that connects the first contact portion and the second contact portion, the intermediate electrical connection portion electrically connecting the first contact portion and the second contact portion.
As shown in fig. 2 to 5, the electrode of the developing cartridge of the present embodiment includes an electric contact member 22, a first electric connection member 21, a second electric connection member 33, and a third electric connection member 11. On the opposite side 20 of the driving side of the developing cartridge, a detected member 9 which can be detected by the image forming apparatus for providing information on whether or not the developing cartridge is a new cartridge to the program apparatus is provided, and the detected member 9 moves a detecting body (not shown in the figure) in the image forming apparatus by moving to provide information on whether or not the developing cartridge is a new cartridge to the image forming apparatus. In order to simplify the structure of the developing cartridge and save space, the detected part 9 and the first electric contact part are simultaneously arranged on the opposite side of the driving side of the developing cartridge shell 1, the driving gear 4 and the second electric contact part are simultaneously arranged on the driving side of the shell 1, the layout of the driving side and the driving opposite side of the shell 1 of the developing cartridge can be more opposite and reasonable, the space utilization rate of the developing cartridge is higher, the structure of the developing cartridge can be more compact, and the size of the developing cartridge can be miniaturized as much as possible. Preferably, the detected member 9 is a detecting body that touches the image forming apparatus by a rotational movement, and in order to save space of the developing cartridge and the image forming apparatus, the detecting body and the power supply member in the image forming apparatus are integrated in one position, and therefore, the detected member 9 and the electric contact member 22 in the developing cartridge are also disposed adjacently. In the present embodiment, the electric contact member 22 is in contact with the power supply member in the image forming apparatus, the first contact portion of the electrode is provided on the electric contact member 22, and the electric contact member 22 is fixed by the screw 23 at a position overlapping the detected member 9 as viewed in the longitudinal direction of the casing 1, so that the structure of the developing cartridge can be made more compact to save space, in other words, the first contact portion overlaps at least a part of the detected member 9 as viewed in the direction of the rotation axis of the developing roller 2. The first electrical connection member 21 and the electrical contact member 22 are divided into two parts, and the electrical contact member 22 can be made thinner and smaller by using a metal material, and the wear resistance of the electrical contact member 22 can be improved, but not limited thereto. A simple variant would also be to form the first electrical connection part 21 integrally with the electrical contact part 22, in which case only a corresponding escape opening would have to be provided in the first electrical connection part 21 at a location where the detected part 9 contacts the detection body in the imaging device during rotation.
The third electrical connection member 11, the developing roller shaft distal end portion 2a, the powder feeding roller shaft distal end portion 6a, and the agitator shaft distal end portion 7a are included on the driving side 10 of the developing cartridge. A powder feeding roller (not shown in the figure) is used to supply the developer to the developing roller 2, and an agitating frame is used to agitate and convey the developer in a developer accommodating portion in the casing 1. The developing roller shaft and the powder feeding roller shaft are both made of metal, and the developing roller end part 2a and the powder feeding shaft end part 3a protrude from the side wall of the developer accommodating part of the housing 1. The second electrical connection member 30 electrically connects the first electrical connection member 21 and the third electrical connection member 11, is configured to cross the length direction of the housing 1, and has a driving side electrical contact end 30a and a driving side-to-side electrical contact end 30b, the driving side electrical contact end 30a being electrically contacted with the third electrical connection member 11, and the driving side-to-side electrical contact end 30b being electrically contacted with the third electrical connection member 11. The first electrical connection member 21 includes a first electrical contact portion 21a electrically contacting the driving side-opposite side electrical contact terminal 30b, the third electrical connection member 11 includes a third electrical contact portion 11a electrically contacting the driving side electrical contact portion, the first electrical contact portion 21a electrically contacts the driving side-opposite side electrical contact portion 30b at a position opposite to the driving side of the developing cartridge, and the third electrical contact portion 11a electrically contacts the driving side electrical contact portion 30a at the driving side of the developing cartridge. Preferably, the first electrical connection member 21 serves as a cover member for covering the detection member 9 at the same time, and the third electrical connection member 11 serves as a bearing member for supporting the developing roller shaft 2a at the same time. Further, the third electrical connecting member 11 can also function as a bearing member that supports the powder feed roller shaft 6a at the same time. Specifically, the third electrical connecting member 11 includes a developing roller bearing portion 11b configured as a circular through-hole for supporting the developing roller shaft 2a, while also electrically contacting the developing roller shaft 2a through the bearing portion 11 b. Therefore, the second contact portion of the electrode is provided on the third electrical connection member 11 in the present embodiment, and the intermediate electrical connection member includes the first contact portion connecting portions of the first electrical connection member 21, the second electrical connection member 33, the third electrical connection member 11, and the electrical contact member 22. Further, the third electrical connecting member 11 may further include a powder feeding roller bearing portion for supporting the powder feeding roller shaft and simultaneously supplying power to the powder feeding roller to improve image forming quality. Preferably, the first electrical connection member 21 and the third electrical connection member 11 are made of a conductive resin material, and the third electrical connection member 11 may be made of a POM conductive resin material having a self-lubricating effect as a bearing member for supporting the developing roller shaft 2a, but is not limited thereto, and may be made of a conductive material having a rigid structure such as a conductive metal. The second electrical connection member 30 is preferably made of a metal material, but is not limited thereto.
Example 2
As shown in fig. 6, embodiment 2 of the present invention is different from embodiment 1 in that the intermediate electrical connection portion of the electrode has a different structure. In the present embodiment, the second electrical connection member is the doctor blade 8 extending in the longitudinal direction of the casing 1, and specifically, the doctor blade 8 for limiting the thickness of the layer of developer on the surface of the developing roller 2 in the developing cartridge is supported by a metal material, and both sides of the doctor blade 8 in the longitudinal direction are electrically contacted to the first electrical connection member 21 and the third electrical connection member 11, respectively. Through the structure, the powder outlet knife 8 in the developing box can be further utilized, the powder outlet knife 8 is also the second electric connecting part, the space of the developing box is further saved, meanwhile, the second electric connecting part in one embodiment can be reduced, and the production and manufacturing cost of the developing box can be further reduced.
Example 3
As shown in fig. 6, embodiment 3 of the present invention is different from embodiment 1 in that the intermediate electrical connection portion of the electrode has a different structure. The developer accommodating portion of the housing 1 of the developing cartridge includes an upper cover 1a and a bottom cover 1b, and the upper cover 1a and the bottom cover 1b are welded by an ultrasonic welding process, and the inside thereof forms a developer accommodating space. In this embodiment, the second electrical connection member is an upper cover 1a, and the upper cover 1a may be made of a conductive resin material. The present embodiment can be simply modified by eliminating the first electrical connecting part, the third electrical connecting part and the electrical contact part in embodiment 1 after the upper cover 1a is used as the second electrical connecting part, and the upper cover 1a can be separately electrically connected to the developing roller shaft from the power supply part in the image forming apparatus by simply modifying the structure of the upper cover 1a, that is, the upper cover 1a has both the cover first electrical contact part electrically contacting the power supply part of the image forming apparatus and the cover second electrical contact part electrically contacting the developing roller shaft.
Example 4
As shown in fig. 6, embodiment 4 of the present invention is different from embodiment 3 in that in embodiment 3, the upper cover 1a is used as an intermediate electrical contact member to realize an intermediate electrical connection portion between a power supply member and a developing roller shaft of an image forming apparatus, and in this embodiment, the lower cover 1b is used to realize this function, and in this embodiment, the lower cover 1b is made of a conductive resin material.
Example 5
The following describes embodiment 5 of the present invention, as shown in fig. 7 and 8, in embodiment 5 of the present invention, the developing cartridge is further provided with an integrated circuit chip 41, the integrated circuit chip 41 stores therein information such as page yield of the developing cartridge, and the integrated circuit chip 41 can cooperate with the detection member 9 to simultaneously realize providing information such as page yield of the developing cartridge and whether the developing cartridge is a new cartridge to the image forming apparatus. The integrated circuit chip 41 includes a body storage portion 41a and an electrical contact surface 41b, the electrical contact surface 41b being electrically connected to the body storage portion 41a, and the electrical contact surface 41b being used for contact with an electrical contact in an imaging device capable of reading information from the integrated circuit chip 41 or writing information into the integrated circuit chip 61. Since the integrated circuit chip 41 is required to be arranged on the developing cartridge, considering that the electric contact member 22 and the detected member 9 are arranged on the driving side opposite side 20 of the developing cartridge, and only the gear train for transmitting the driving force is arranged on the driving side 10 of the developing cartridge, the integrated circuit chip 41 is arranged on the driving side 10 of the developing cartridge, the structural arrangement of the driving side 10 and the driving side opposite side 20 of the developing cartridge is more symmetrical and reasonable, which is beneficial to the miniaturization design of the structure of the developing cartridge, meanwhile, the electrode structure design of the developing cartridge can adopt the same design as that in the above embodiments 1 to 4, and all adopt the structure crossing both sides of the housing 1 in the length direction, and the structure of each electrode is not explained in detail in the embodiment. The integrated circuit chip 41 is mounted on the developing cartridge through the chip holder 42, and the chip holder 42 is made of an insulating material, so that the electrical interference of the electrode on the driving side 10 of the developing cartridge to the chip can be isolated. Specifically, for example, with the interference of the third electrical connection member 11 in the electrode in embodiment 1 with the integrated circuit chip, it is preferable that the chip holder 42 further includes at least a portion between the electrical contact surface 41b of the integrated circuit chip 41 and the third electrical connection member 11 in the longitudinal direction of the developing cartridge, which portion can insulate the integrated circuit chip 41 and the electrode well.
The utility model discloses an other deformation embodiments also can be make metal or conductive resin material through the inside agitator shaft of developing box, also can act as the middle electric contact portion of connecting electric contact part and developing roller axle, summarize above each embodiment, as long as realize setting up the first electric contact portion of electrode and imaging device's power supply part electric contact and the electrode second electric contact portion of electrode and developing roller axle electric contact respectively at the double-phase offside on developing box length direction through middle electric connection portion, can reach the technical effect of the utility model, through the design that utilizes the electrode to span the ascending both sides of length direction of developing box, increase the design degree of freedom of electrode.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (10)
1. A developing cartridge detachably mountable to an image forming apparatus, comprising:
a housing having a developer accommodating portion;
a developing roller rotatably supported by the housing, the developing roller rotating about an axis extending in a first direction, and having a developing roller shaft made of metal;
a powder feeding roller rotatably supported by the housing for feeding the developer to the developing roller, and having a powder feeding roller shaft made of metal;
a driving gear provided at a driving side of the housing in a first direction for engaging with a driving member in the image forming apparatus to receive a rotational driving force;
an electrode including a first contact portion contacting a power supply member in the image forming apparatus, a second contact portion contacting the developing roller shaft, and an intermediate electrical connection portion connecting the first contact portion and the second contact portion, the intermediate electrical connection portion electrically connecting the first contact portion and the second contact portion;
the second contact part is positioned on the driving side of the shell, the first contact part is positioned on the opposite side of the driving side of the shell, and the opposite side of the driving side and the driving side are two opposite ends of the shell in the first direction; the first contact part and the detected component are positioned on the opposite side of the driving side of the shell.
2. A developing cartridge according to claim 1, wherein said electrode further includes a bearing member supporting said developing roller shaft at a driving side of said casing, said bearing member being electrically connected to said developing roller shaft and supporting said developing roller shaft in a manner allowing rotation of said developing roller shaft.
3. A developing cartridge according to claim 2, wherein said bearing member supports said developing roller shaft and said powder feeding roller shaft at the same time, and electrically contacts said developing roller shaft and said powder feeding roller shaft at the same time.
4. A developing cartridge according to claim 1, wherein said developer accommodating portion of said casing has an upper cover and a lower cover, said upper cover being made of an electrically conductive material and being configured as a part of said intermediate electrical connection portion.
5. A developing cartridge according to claim 1, wherein said developer accommodating portion of said casing has an upper cover and a lower cover, said lower cover being made of an electrically conductive material and configured as a part of said intermediate electrical connection portion.
6. A developing cartridge according to claim 1, further comprising a cover member covering said detected member, said cover member being provided on a side opposite to a driving side of said casing, said cover member being a part of said intermediate electric connecting portion.
7. A developing cartridge according to claim 1, wherein said first contact portion overlaps with at least a part of said detected member as viewed in an axial direction of said developing roller.
8. A developing cartridge according to claim 1, further comprising a powder discharge blade for limiting a thickness of a layer of the developer on the surface of said developing roller, said powder discharge blade being a part of said intermediate electrical connection portion.
9. A developing cartridge according to claim 1, further comprising an integrated circuit chip provided on said driving side.
10. A developing cartridge according to claim 9, wherein said integrated circuit chip is mounted on said developing cartridge by a chip holder, said integrated circuit chip including an electrical contact surface for making electrical contact with said image forming apparatus, said electrical contact surface being insulated from a portion of said electrode on a driving side of said developing cartridge by said chip holder.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE212021000241.2U DE212021000241U1 (en) | 2020-07-15 | 2021-07-15 | developer cartridge |
| PCT/CN2021/106467 WO2022012620A1 (en) | 2020-07-15 | 2021-07-15 | Developing box |
| US17/717,224 US11442399B2 (en) | 2020-07-15 | 2022-04-11 | Developing cartridge |
| US18/094,934 US20230161288A1 (en) | 2020-07-15 | 2023-01-09 | Developing cartridge |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2020213816042 | 2020-07-15 | ||
| CN202021381604 | 2020-07-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212623583U true CN212623583U (en) | 2021-02-26 |
Family
ID=74719352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021420422.1U Active CN212623583U (en) | 2020-07-15 | 2020-07-20 | Developing box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212623583U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022012620A1 (en) * | 2020-07-15 | 2022-01-20 | 江西亿铂电子科技有限公司 | Developing box |
| WO2024120533A1 (en) * | 2022-12-10 | 2024-06-13 | 江西亿铂电子科技有限公司 | Developer cartridge |
| US12105443B2 (en) | 2022-06-02 | 2024-10-01 | Jiangxi Yibo E-Tech Co. Ltd. | Developing cartridge |
-
2020
- 2020-07-20 CN CN202021420422.1U patent/CN212623583U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022012620A1 (en) * | 2020-07-15 | 2022-01-20 | 江西亿铂电子科技有限公司 | Developing box |
| US11442399B2 (en) | 2020-07-15 | 2022-09-13 | Jiangxi Yibo E-Tech Co. Ltd. | Developing cartridge |
| US12105443B2 (en) | 2022-06-02 | 2024-10-01 | Jiangxi Yibo E-Tech Co. Ltd. | Developing cartridge |
| WO2024120533A1 (en) * | 2022-12-10 | 2024-06-13 | 江西亿铂电子科技有限公司 | Developer cartridge |
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