CN214427751U

CN214427751U - Developing box

Info

Publication number: CN214427751U
Application number: CN202120775377.XU
Authority: CN
Inventors: 刘志勇
Original assignee: Jiangxi Runhong Mould Co ltd
Current assignee: Jiangxi Runhong Mould Co ltd
Priority date: 2021-04-15
Filing date: 2021-04-15
Publication date: 2021-10-19
Anticipated expiration: 2031-04-15

Abstract

The utility model relates to a developing box, this developing box can be installed along installation orientation A, including casing and the chip subassembly that combines with the casing, along installation orientation A, the chip subassembly is located the rear end of casing, the chip subassembly includes chip frame and the electrically conductive steel sheet and the chip of fixed mounting in the chip frame, and electrically conductive steel sheet forms the electrical contact with the chip, and the chip subassembly combines with the casing with the detachable mode, electrically conductive steel sheet breaks away from to combine and breaks away from with the casing along with the chip frame from the casing, therefore, chip and electrically conductive steel sheet can be installed to the chip frame in advance, not only make the operating space grow, can ensure moreover that the electrical contact between chip and the electrically conductive steel sheet is good.

Description

Developing box

Technical Field

The utility model relates to a detachably installs a development box in laser printer.

Background

The chip can establish communication connection between development box and laser printer, for reducing the pollution of outside dust to the chip contact, in current development box, the safety cover is still installed to the outside of chip, and simultaneously, still be provided with electrically conductive steel sheet on the safety cover, when the safety cover was installed, the contact of electrically conductive steel sheet and chip to form the electrical contact between the two, simultaneously, the other end of electrically conductive steel sheet forms the electrical contact with laser printer's contact pilotage.

The protective cover provided with the conductive steel sheet is integrally formed with a part of the developing box shell, the developing box shell comprises a bottom shell and a surface cover which are combined with each other, when the developing box is assembled, the conductive steel sheet needs to be installed on the bottom shell firstly, then the bottom shell and the surface cover are welded together, and the conductive steel sheet can be displaced in the welding process; on the other hand, the position of the conductive sheet must be very precise, otherwise no electrical contact can be made between the chip and the conductive sheet after the chip has been mounted.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model provides a developing box for the electricity between chip and the electrically conductive steel sheet is connected and is kept stable, and adopts following technical scheme:

the utility model provides a developing box, can follow installation direction A and be installed, includes the casing and the chip module that combines with the casing, and along installation direction A, the chip module is located the rear end of casing, the chip module includes chip frame and the electrically conductive steel sheet and the chip of fixed mounting in the chip frame, and electrically conductive steel sheet forms the electrical contact with the chip, and the chip module combines with the casing with the detachable mode, electrically conductive steel sheet breaks away from the combination and breaks away from with the casing along with the chip frame from the casing.

The developing cartridge further includes a developing roller rotatably mounted in the casing, the developing roller and the chip assembly being located at both ends of the casing, respectively, in the mounting direction a.

The developing cartridge further includes a mounting portion provided on the casing for coupling with the chip assembly, the mounting portion including a guide plate protruding from the casing in a direction opposite to a mounting direction, the chip carrier being guided by the guide plate to be coupled with the guide plate.

The chip frame comprises a main body with an outer surface and an inner surface, side walls extending from the main body, an operating part positioned at one tail end of the main body and a guided piece, wherein the extending direction of the side walls is the same as the direction of the outer surface of the main body pointing to the inner surface, the two side walls are oppositely distributed at the two tail ends of the main body, the guided piece can be guided by a guide plate, and a conductive steel sheet is fixedly arranged on one side wall.

The operating portion and the guided member are respectively located at both distal ends of the main body in the longitudinal direction of the developing cartridge.

The conductive steel sheet includes the intermediate part and is located location portion and the contact site at intermediate part both ends respectively, and location portion is used for with conductive steel sheet fixed mounting on the chip frame, and the contact site is used for contacting with the chip, and location portion includes the first board of being connected with the intermediate part and the second board of buckling for the first board, form first space between first board and the second board, and form the combination hole on the second board, the combination hole is used for the combination of chip frame.

The chip frame further comprises a clamping protrusion protruding outwards from one side wall, when the conductive steel sheet is installed, the first space is combined with the side wall, and the clamping protrusion is combined with the combining hole.

The chip holder further includes a plurality of through-holes provided on the main body, the contact portion includes a third plate connected to the middle portion and a fourth plate bent with respect to the third plate, a second space is formed between the third plate and the fourth plate, and an elastic protrusion for contacting the chip is formed on the fourth plate, and at least a portion of the third plate is exposed through the through-holes when the conductive steel sheet is mounted.

The utility model relates to an in the developing box, the whole separable with the casing of chip subassembly, the chip subassembly includes chip frame and chip and the electrically conductive steel sheet of fixed mounting on the chip frame, therefore, chip and electrically conductive steel sheet can be installed to the chip frame in advance, not only make the operating space grow, can ensure moreover that the electric contact between chip and the electrically conductive steel sheet is good.

Drawings

Fig. 1 is a perspective view of a developing cartridge according to the present invention.

Fig. 2 is a schematic view of a state in which the chip assembly is separated from the casing in the developing cartridge according to the present invention.

Fig. 3 is an exploded view of a chip assembly in a developing cartridge according to the present invention.

Fig. 4 is a perspective view of a chip in the chip module according to the present invention.

Fig. 5 is a perspective view of a conductive steel sheet in the chip module according to the present invention.

Detailed Description

Fig. 1 is a perspective view of a developing cartridge according to the present invention, and fig. 2 is a schematic view of a state in which a chip assembly is separated from a casing in the developing cartridge according to the present invention.

The developing cartridge 1 can be installed in a laser printer along an installation direction A, the developing cartridge 1 comprises a housing 2 for containing carbon powder, a developing roller 3 and a powder discharging blade 4, the developing roller 3 is installed in the housing 2 and used for conveying the carbon powder on the surface of the developing roller outwards when rotating, the powder discharging blade 4 is used for adjusting the thickness of the carbon powder on the surface of the developing roller 3, and two longitudinal ends of the developing cartridge 1 are respectively formed into a driving end 10 for receiving driving force from the laser printer and a conductive end 20 for receiving power from the laser printer.

Meanwhile, the developing cartridge 1 further includes a chip assembly 5 detachably coupled to the casing 2, and the developing roller 3 and the chip assembly 5 are respectively located at both ends of the casing 2 along the mounting direction a, wherein the developing roller 3 is located at a front end of the casing 2, and the chip assembly 5 is located at a rear end of the casing 2, and the chip assembly 5 includes a chip holder 51, and a conductive steel sheet 52 and a chip 53 fixedly mounted in the chip holder 51, that is, the chip 53 and the conductive steel sheet 52 in this embodiment are not mounted on the casing 2, but are mounted on the chip holder 51, and can be disengaged from the casing 2 as the chip holder 51 is disengaged from the casing 2.

As shown in fig. 2, the developing cartridge 1 further includes a mounting portion 21 provided on the casing 2, the mounting portion 21 being located at a rear end of the casing 2 in the mounting direction a, the chip assembly 5 being detachably coupled with the mounting portion 21. The mounting portion 21 includes a guide plate 23 protruding from the housing 2 in a direction opposite to the mounting direction a, the guide plate 23 is provided with a guide groove 24 and a guide slope 25, and the chip holder 51 is provided with a guided piece, which will be described later, fitted to the guide groove 24.

Fig. 3 is an exploded view of a chip module in a developing cartridge according to the present invention, fig. 4 is a perspective view of a chip in a chip module according to the present invention, and fig. 5 is a perspective view of a conductive steel sheet in a chip module according to the present invention.

First, referring to fig. 4, the chip 53 is explained, and the chip 53 includes a substrate 531 and terminals 534 formed on the substrate 531, the terminals 534 being used to make electrical contact with the conductive steel sheets 52. Further, the chip 53 further includes an identification portion 532 formed on the substrate 531 and a restricted portion 533, the identification portion 532 being combined with a portion 60 (described below) of the chip holder 51 to ensure that the chip 53 is correctly mounted when the chip 53 is mounted, and the restricted portion 533 being used for being restricted by the chip holder 51 to ensure that the chip 53 is stably mounted.

As shown in fig. 5, the conductive steel sheet 52 includes an intermediate portion 521, and positioning portions 522 and contact portions 523 respectively located at both ends of the intermediate portion 521, the positioning portions 522 being used for fixedly mounting the conductive steel sheet 52 on the chip frame 51, and the contact portions 523 being used for contacting with the chip terminals 534. Specifically, the positioning part 522 includes a first plate 5221 connected to the middle part 521 and a second plate 5222 bent with respect to the first plate 5221, a first space 5224 is formed between the first plate 5221 and the second plate 5222, and a coupling hole 5223 is formed in the second plate 5222; the contact portion 523 includes a third plate 5231 connected to the intermediate portion 521 and a fourth plate 5232 bent with respect to the third plate 5231, a second space 5234 is formed between the third plate 5231 and the fourth plate 5232, and an elastic protrusion 5233 for contacting the chip terminal 534 is formed on the fourth plate 5232, and when the chip 53 is mounted, the elastic protrusion 5233 is elastically deformed, thereby ensuring that the chip terminal 534 is kept in good contact with the elastic protrusion 5233.

As shown in fig. 2 and 3, the chip holder 51 includes a main body 6 having an outer surface 61 and an inner surface 62, a side wall 63 extending from the main body 6, an operating portion 64 at one end of the main body 6, and a guided member 65, the side wall 63 extending in the same direction as the outer surface 61 of the main body 6 toward the inner surface 62, and the two side walls 63 being distributed oppositely at the two ends of the main body 6, the operating portion 64 and the guided member 65 being located at the two ends of the main body 6, respectively, in the longitudinal direction of the developing cartridge 1, so that the direction from one side wall toward the other side wall is perpendicular to the longitudinal direction; further, both ends of the main body 6 in the longitudinal direction of the developing cartridge 1 are provided with guided pieces 65, and the guided pieces 65 allow both ends of the chip holder 51 to be fixed in the longitudinal direction of the developing cartridge 1.

A receiving space for receiving the chip 53 is defined between the two side walls 63, wherein one side wall 63 protrudes outwards to form a clamping protrusion 69, the first space 5224 formed in the positioning part 522 of the conductive steel sheet 52 is combined with the side wall 63, and the clamping protrusion 69 passes through the combining hole 5223, so that the conductive steel sheet 52 is fixed on the chip frame 51; meanwhile, the main body 6 is further provided with a plurality of through holes 67, the receiving space communicates with the outside through the through holes 67, and at least a portion of the third plate 5231 is exposed through the through holes 67 when the conductive steel sheet 52 is mounted.

Further, the chip holder 51 further includes a first restriction plate 681, a second restriction plate 682, and an identified part 60 protruding from the inner surface 62 of the main body 6, the first restriction plate 681 being adjacent to one of the side walls 63 and being disposed to be deformable, the second restriction plate 682 being adjacent to the other side wall 63 and being disposed to be non-deformable, and conversely, the first restriction plate 681 may be disposed to be non-deformable, the second restriction plate 682 may be disposed to be deformable, or both the first restriction plate 681 and the second restriction plate 682 may be disposed to be deformable, that is, at least one of the first restriction plate 681 and the second restriction plate 682 may be disposed to be deformable.

When the chip 53 is mounted, the recognized part 60 is combined with the recognition part 532, specifically, the recognized part 60 is a bump protruding from the inner surface 62 of the main body, and the recognition part 532 is a groove 532 disposed on the substrate 531, it is understood that the recognized part 60 can also be disposed as a groove formed on the main body 6, and correspondingly, the recognition part 532 is a bump disposed on the substrate 531; at the same time, the restricted portion 533 is restricted by the first and

second restriction plates

681 and 682, the elastic projection 5233 abuts against the chip terminal 534, and the elastic projection 5233 is elastically deformed toward the second space.

After the chip 53 and the conductive steel sheet 52 are fixedly mounted to the chip frame 51 and constitute the chip assembly 5, the chip assembly 5 is mounted toward the housing 2, guided along the guide grooves 24 by the guide members 65, and elastically deformed by the guide members 65 under the action of the guide inclined surfaces 25 until the coupling protrusions 66 at the ends of the guided members 65 pass over the guide inclined surfaces 25 and couple the coupling protrusions 66 with the guide plates 23, whereby the coupling of the chip assembly 5 with the housing 2 is achieved, and when the chip 53 needs to be replaced, the operator forces the chip assembly 5 to be disengaged from the housing 2 by applying a force away from the housing 2 to the operating part 64, and at this time, the chip 53, the conductive steel sheet 52 and the chip frame 51 are simultaneously separated from the housing 2, and the operator can replace the chip 53.

As can be seen from the above description, the chip assembly 5 of the present invention includes the chip frame 51, and the conductive steel sheet 52 and the chip 53 fixedly mounted in the chip frame 51, the combination of the chip 53 and the conductive steel sheet 52 can be performed outside the housing 2, not only the operation space is enlarged, but also the combination of the chip 53 and the conductive steel sheet 52 is more precise, and the electrical contact between the chip 53 and the conductive steel sheet 52 is ensured; especially, when the chip 53 is upgraded, the end user must replace the upgraded chip 53 to continue to use the developing cartridge 1, at this time, the manufacturer of the developing cartridge 1 can install the upgraded chip into a new chip frame 51 pre-installed with the conductive steel sheet 52, and the end user takes down the old chip assembly 5 and replaces the old chip assembly 5 with the new chip assembly 5, so that the difficulty of replacing the chip 53 by the end user alone is reduced, and the use experience of the user is improved.

Claims

1. The utility model provides a developing box, can be installed along installation direction A, includes casing and the chip module who combines with the casing, and along installation direction A, the chip module is located the rear end of casing, the chip module includes chip frame and the electrically conductive steel sheet and the chip of fixed mounting in the chip frame, and electrically conductive steel sheet forms the electrical contact with the chip, and its characterized in that, chip module and casing combine with the detachable mode, electrically conductive steel sheet breaks away from with the casing along with the chip frame breaks away from the combination from the casing.

2. A developing cartridge according to claim 1, wherein the developing cartridge further comprises a developing roller rotatably mounted in the casing, the developing roller and the chip assembly being located at both ends of the casing in the mounting direction a, respectively.

3. A developing cartridge according to claim 2, wherein the developing cartridge further comprises a mounting portion provided on the casing for coupling with the chip assembly, the mounting portion including a guide plate protruding from the casing in a direction opposite to the mounting direction, the chip holder being guided by the guide plate to be coupled with the guide plate.

4. A developing cartridge according to claim 3, wherein the chip holder includes a main body having an outer surface and an inner surface, side walls extending from the main body in the same direction as the outer surface of the main body toward the inner surface, an operating portion at one end of the main body, and a guided member disposed at the two ends of the main body so as to be opposed to each other, the guided member being guided by the guide plate, the conductive steel sheet being fixedly mounted on one of the side walls.

5. A developing cartridge according to claim 4, wherein the operating portion and the guided member are respectively located at both distal ends of the main body in a longitudinal direction of the developing cartridge.

6. The developing cartridge according to claim 5, wherein the conductive steel sheet includes a middle portion, and a positioning portion and a contact portion respectively provided at both ends of the middle portion, the positioning portion being for fixedly mounting the conductive steel sheet on the chip frame, the contact portion being for contacting the chip, the positioning portion including a first plate connected to the middle portion and a second plate bent with respect to the first plate, the first plate and the second plate forming a first space therebetween, and the second plate forming a coupling hole for coupling the chip frame.

7. The developing cartridge according to claim 6, wherein the chip holder further includes a catching protrusion formed to protrude outward from one of the side walls, the first space being engaged with the side wall when the conductive steel sheet is mounted, the catching protrusion being engaged with the engaging hole.

8. A developing cartridge according to claim 6, wherein the chip holder further includes a plurality of through holes provided on the main body, the contact portion includes a third plate connected to the intermediate portion and a fourth plate bent with respect to the third plate, a second space is formed between the third plate and the fourth plate, and an elastic projection for contacting the chip is formed on the fourth plate, at least a portion of the third plate being exposed through the through holes when the conductive steel sheet is mounted.