CN220820462U

CN220820462U - Process cartridge

Info

Publication number: CN220820462U
Application number: CN202322232997.0U
Authority: CN
Inventors: 范金石
Original assignee: Zhuhai Dinghe Technology Co ltd
Current assignee: Zhuhai Dinghe Technology Co ltd
Priority date: 2023-08-18
Filing date: 2023-08-18
Publication date: 2024-04-19
Anticipated expiration: 2033-08-18

Abstract

The utility model discloses a processing box, which is used for being installed on a main component of an electronic photographic imaging device, wherein the main component is provided with an electric connector, the electric connector comprises a conductive contact pin arranged on a supporting seat, and two opposite sides of the conductive contact pin are respectively provided with two protruding parts connected with the supporting seat; the process cartridge includes a chip for electrical connection to the conductive contact pins, the chip being mounted on a chip carrier. In some embodiments, at least one side of the chip carrier is provided with a positioning groove, and at least one protrusion is inserted into the corresponding positioning groove to define the relative position of the support carrier and the chip carrier when the process cartridge is mounted to the main assembly. The utility model can promote the stable and reliable electric connection between the chip and the electric connector.

Description

Process cartridge

Technical Field

The present utility model relates to the field of electrophotographic imaging apparatuses; and more particularly to a process cartridge with a chip.

Background

The process cartridge is usually detachably mounted in a main assembly of an electrophotographic image forming apparatus such as a laser printer, a copying machine, etc., and a chip storing information (e.g., model/specification, number of printable pages, etc.) related to the process cartridge may be provided on the process cartridge in order for the electrophotographic image forming apparatus to read/recognize the information related to the process cartridge. In order to ensure that the electrophotographic image forming apparatus can stably read/recognize information stored in the chip, it is required that a reliable electrical connection be formed between the chip and an electrical connector in the main assembly after the process cartridge is mounted to the main assembly.

Disclosure of utility model

The main object of the present utility model is to provide a process cartridge that facilitates the formation of a stable and reliable electrical connection between a chip and an electrical connector.

In order to achieve the above-described main object, a first aspect of the present utility model discloses a process cartridge for mounting to a main assembly of an electrophotographic image forming apparatus, the main assembly being provided with an electrical connector including a conductive contact pin provided on a supporting base, opposite sides of the conductive contact pin being provided with two protruding portions connected to the supporting base; the processing box comprises a chip for being electrically connected to the conductive contact pins, the chip is arranged on a chip seat, and at least one side of the chip seat is provided with a positioning groove; when the processing box is installed on the main assembly, the at least one protruding part is inserted into the corresponding positioning groove to limit the relative position of the supporting seat and the chip seat.

According to one specific embodiment of the utility model, positioning grooves are formed in two opposite sides of the chip seat; at least one of the two protrusions is inserted into the corresponding positioning groove when the process cartridge is mounted to the main assembly.

In some embodiments, two detents are provided at diagonal positions of the chip carrier; when the process cartridge is mounted to the main assembly, one of the two bosses is inserted into the corresponding positioning groove.

In some embodiments, two of the positioning slots are symmetrically disposed on opposite sides of the chip carrier; when the process cartridge is mounted to the main assembly, both of the protruding portions are inserted into the corresponding positioning grooves.

According to another specific embodiment of the utility model, one side of the chip seat is provided with a positioning groove, and the other side of the chip seat opposite to the positioning groove is provided with a limiting rib; when the process cartridge is mounted to the main assembly, at least one of the two protrusions on one side of the conductive contact pin is inserted into the positioning groove, and the stopper rib is inserted between the two protrusions on the other side of the conductive contact pin.

In some embodiments, both protrusions on one side of the conductive contact pin are inserted into the locating slot.

According to one embodiment of the present utility model, a process cartridge includes a developing unit provided with a developing roller and a photosensitive unit provided with a photosensitive drum, and a chip carrier is provided on a developing end cap located at a longitudinal end of the developing unit.

In the technical scheme, at least one side of the chip seat is provided with a positioning groove; when the processing box is installed on the main assembly, the at least one protruding part is inserted into the corresponding positioning groove to limit the relative position of the supporting seat and the chip seat, so that stable and reliable electric connection is formed between the chip and the electric connector.

In order to achieve the above-described main object, a second aspect of the present utility model discloses a process cartridge for mounting to a main assembly of an electrophotographic image forming apparatus, the main assembly being provided with an electrical connector including a conductive contact pin provided on a supporting base, opposite sides of the conductive contact pin being provided with two protruding portions connected to the supporting base; the processing box comprises a chip used for being electrically connected to the conductive contact pins, the chip is mounted on a chip seat, when the processing box is mounted on the main component, the chip seat is inserted between the protruding parts, and two opposite side walls of the chip seat are respectively close to the two protruding parts on the corresponding sides so as to limit the relative positions of the supporting seat and the chip seat.

In some embodiments of the second aspect, a limiting rib is disposed on one side wall of the chip holder; when the process cartridge is mounted to the main assembly, the stopper rib is inserted between the corresponding two bosses.

In some embodiments of the second aspect, the process cartridge is provided with abutment surfaces on opposite sides of the chip carrier; when the process cartridge is mounted to the main assembly, the front end of the boss is pressed against the abutment surface on the corresponding side.

In the above technical scheme, the chip holder is inserted between the protruding parts, and two opposite side walls of the chip holder are respectively close to the two protruding parts on the corresponding sides of the supporting seat, so that the relative positions of the supporting seat and the chip holder are limited, and stable and reliable electric connection is formed between the chip and the electric connector.

The objects, technical solutions and advantages of the present utility model will be more clearly described below, and the present utility model will be further described in detail with reference to the accompanying drawings and the detailed description.

Drawings

FIG. 1 is a schematic diagram of an electrical connector within a prior art main assembly;

fig. 2 is an overall configuration diagram of the process cartridge in embodiment 1;

Fig. 3 is a structural view of a developing end cap portion of the process cartridge in embodiment 1;

FIG. 4 is a diagram showing the structure of the chip carrier and the electrical connector in example 1;

Fig. 5 is a state diagram of the insertion of the chip carrier into the insertion groove when the process cartridge of embodiment 1 is mounted to the main assembly;

fig. 6 is a structural view of a developing end cap portion in embodiment 2;

FIG. 7 is a diagram showing a structure of a chip carrier and an electrical connector according to embodiment 2;

Fig. 8 is a structural view of a developing end cap portion in embodiment 3;

fig. 9 is a fitting structure diagram of the chip carrier and the electrical connector in embodiment 3;

Fig. 10 is a structural view of a developing end cap portion in embodiment 4;

FIG. 11 is a diagram showing the structure of the fitting of the chip carrier to the electrical connector in embodiment 4;

Fig. 12 is a structural view of a developing end cap portion in embodiment 5;

Fig. 13 is a fitting structure diagram of the chip carrier and the electrical connector in embodiment 5.

Detailed Description

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, it should be understood that the following examples and detailed description are presented for purposes of illustration only and are not intended to limit the scope of the utility model.

For ease of understanding, the structure of the electrical connector in the main assembly of the electrophotographic image forming apparatus will be described first. As shown in fig. 1, the electrical connector 100 of the main assembly includes a supporting base 110 and conductive pins 120 provided on the supporting base 110, and two protrusions 111 connected to the supporting base 110 are provided at opposite sides of the conductive pins 120. The support base 110 is movably disposed in the main assembly and connected to the elastic member 130 in the main assembly.

As shown in fig. 2, the process cartridge of the embodiment includes a developing unit 210 and a photosensitive unit 220. The photosensitive unit 220 is provided with a photosensitive drum 221, and the developing unit 210 is provided with a developing roller (not visible in the drawing) for supplying a developer to the photosensitive drum 221 so that an electrostatic latent image on the photosensitive drum 221 can be developed. Further, the process cartridge further includes a chip 240 provided on the chip carrier 230, and the position of the chip carrier 230 may be determined according to the position of the electrical connector in the main assembly, for example, the chip carrier 230 may be provided on one of the developing end caps 211 at the longitudinal end of the developing unit 210, preferably having an integrally formed structure with the developing end cap 211.

To facilitate a reliable and stable electrical connection between the chip 240 and the electrical connector 100, the cartridge is provided with a positioning structure that mates with the boss 111 to define the relative positions of the chip carrier 230 and the support carrier 110 when the cartridge is mounted to the main assembly. Hereinafter, this will be described in detail with reference to examples.

Example 1

As shown in fig. 2 and 3, the chip holder 230 has two side walls 231 disposed opposite to each other in a first direction X perpendicular to the axial direction of the photosensitive drum 221. As shown in fig. 4 to 5, when the process cartridge is mounted to the main assembly, the chip carrier 230 is inserted between the bosses 111, and the two sidewalls 231 of the chip carrier 230 are respectively adjacent to the two bosses 111 of the corresponding sides to define the relative positions of the support carrier 110 and the chip carrier 230 in the first direction X, improving the reliability of the electrical connection between the chip 240 and the electrical connector 100.

Further, the chip holder 230 is provided with abutment surfaces 212 at opposite sides of the first direction X, and the abutment surfaces 212 may be disposed on the developing end cap 211. When the process cartridge is mounted to the main assembly, the front ends of the protruding portions 111 are pressed against the abutment surfaces 212 of the respective sides, so that the supporting base 110 can be rotated by a certain angle relative to the chip 240 to a posture parallel to the chip 240, and the conductive contacts 120 on the supporting base 110 can more stably contact the electrical contacts of the chip 240, further improving the reliability of electrical connection between the chip 240 and the electrical connector 100.

Example 2

As shown in fig. 6 and 7, embodiment 2 is further provided with a stopper rib 232 on one side of the chip holder 230 on the basis of embodiment 1, and when the process cartridge is mounted to the main assembly, the stopper rib 232 is inserted between the two protrusions 111 on the corresponding side, thereby defining the relative positions of the connection holder 110 and the chip holder 230 in the second direction Y (see fig. 1) parallel to the axial direction of the photosensitive drum 221, further improving the reliability of the electrical connection between the chip 240 and the electrical connector 100.

Example 3

As shown in fig. 8 and 9, in embodiment 3, a positioning groove 233 is provided on one side of the chip holder 230, and a limit rib 232 is provided on the other side of the chip holder 230 opposite to the positioning groove 233. When the process cartridge is mounted to the main assembly, both of the two protrusions 111 on one side of the conductive contact pin 120 are inserted into the positioning grooves 233, and the stopper rib 232 is inserted between the two protrusions 111 on the other side of the conductive contact pin. In this way, the relative positions of the support base 110 and the chip base 230 in the first direction X and the second direction Y improve the reliability of the electrical connection between the chip 240 and the electrical connector 100. As a variation of embodiment 3, one of the two protrusions 111 on one side of the conductive contact pin 120 is inserted into the positioning groove 233.

In embodiment 3, the positioning groove 233 includes two sidewalls 2331 disposed opposite to each other in the first direction X, one end of the two sidewalls 2331 is connected to the chip carrier 230, and the other end is connected to the sidewalls 2332, i.e., the positioning groove 233 is closed in both the first direction X and the second direction Y. As another variation of embodiment 3, the positioning groove 233 may have only the side wall 2331 and the side wall 2332 is omitted, in which case the positioning groove 233 forms an open structure with respect to one side of the chip carrier 230 in the second direction Y.

Example 4

As shown in fig. 10 and 11, in embodiment 4, two opposite sides of the chip holder 230 are provided with one positioning slot 233, and two positioning slots 233 are symmetrically disposed on two opposite sides of the chip holder 230; when the process cartridge is mounted to the main assembly, the two protrusions 111 located at each side of the support base 110 are inserted into the positioning grooves 233 to simultaneously define the relative positions of the support base 110 and the chip carrier 230 in the first and second directions X and Y, improving the reliability of the electrical connection between the chip 240 and the electrical connector 100.

In embodiment 4, the positioning groove 233 includes two side walls 2331 disposed opposite to each other in the first direction X, one end of the two side walls 2331 is connected to the chip carrier 230, and the other end is connected to the side wall 2332, i.e., the positioning groove 233 is closed in the lateral direction. As a variation of embodiment 4, at least one of the two positioning grooves 233 may have only the side wall 2331 while omitting the side wall 2332, in which case the positioning groove 233 forms an open structure with respect to one side of the chip carrier 230 in the second direction Y.

Example 5

As shown in fig. 12 and 13, in embodiment 5, two opposite sides of the chip holder 230 are respectively provided with a positioning slot 233, and the two positioning slots 233 are located at diagonal positions of the chip holder 230; when the process cartridge is mounted to the main assembly, one of the two protrusions 111 located at each side of the support base 110 is inserted into the corresponding positioning groove 233 to simultaneously define the relative positions of the support base 110 and the chip carrier 230 in the first and second directions X and Y, improving the reliability of the electrical connection between the chip 240 and the electrical connector 100.

In the same manner as in embodiment 1, in embodiments 3 to 5, the opposite sides of the chip holder 230 in the first direction X may also be provided with abutment surfaces against the front ends of the protruding portions 111, for example, with the bottom surfaces of the positioning grooves 233 as abutment surfaces.

It should be noted that the different embodiments disclosed above may be cited, referred to, or combined with each other, and that the technical features/components of the different embodiments may be combined with and/or replaced with each other, unless contradictory or exclusive situations exist.

Although the utility model has been described above by way of examples, it should be understood that the above examples are illustrative only of the possible embodiments of the utility model and should not be construed as limiting the scope of the utility model, i.e. that substitutions or variations according to the utility model will be covered by the scope of the claims of the utility model.

Claims

1. A process cartridge for mounting to a main assembly of an electrophotographic image forming apparatus, the main assembly being provided with an electrical connector including a conductive contact pin provided on a supporting base, opposite sides of the conductive contact pin being provided with two protruding portions connected to the supporting base; the process cartridge includes a chip for electrically connecting to the conductive contact pins; the method is characterized in that:

The chip is arranged on the chip seat, and a positioning groove is formed in at least one side of the chip seat; at least one of the protruding portions is inserted into the corresponding positioning groove to define a relative position of the support base and the chip base when the process cartridge is mounted to the main assembly.

2. A process cartridge according to claim 1, wherein: the positioning grooves are formed in the two opposite sides of the chip seat; at least one of the two protruding portions is inserted into the corresponding positioning groove when the process cartridge is mounted to the main assembly.

3. A process cartridge according to claim 2, wherein: the two positioning grooves are arranged at the diagonal positions of the chip seat; when the process cartridge is mounted to the main assembly, one of the two protruding portions is inserted into the corresponding positioning groove.

4. A process cartridge according to claim 2, wherein: the two positioning grooves are symmetrically arranged on two opposite sides of the chip seat; when the process cartridge is mounted to the main assembly, both of the protruding portions are inserted into the corresponding positioning grooves.

5. A process cartridge according to claim 1, wherein: one side of the chip seat is provided with the positioning groove, and the other side of the chip seat opposite to the positioning groove is provided with a limiting rib; when the process cartridge is mounted to the main assembly, at least one of the two protruding portions on one side of the conductive contact pin is inserted into the positioning groove, and the stopper rib is inserted between the two protruding portions on the other side of the conductive contact pin.

6. A process cartridge according to claim 5, wherein: the two protruding parts on one side of the conductive contact pin are inserted into the positioning grooves.

7. A process cartridge according to any one of claims 1 to 6, wherein: the processing box comprises a developing unit provided with a developing roller and a photosensitive unit provided with a photosensitive drum, and the chip seat is arranged on a developing end cover positioned at the longitudinal end part of the developing unit.

8. A process cartridge for mounting to a main assembly of an electrophotographic image forming apparatus, the main assembly being provided with an electrical connector including a conductive contact pin provided on a supporting base, opposite sides of the conductive contact pin being provided with two protruding portions connected to the supporting base; the process cartridge includes a chip for electrically connecting to the conductive contact pins; the method is characterized in that:

the chip is arranged on the chip seat; when the process cartridge is mounted to the main assembly, the chip holder is inserted between the protrusions, and two opposite side walls of the chip holder are respectively adjacent to the two protrusions of the corresponding side to define the relative positions of the support holder and the chip holder.

9. A process cartridge according to claim 8, wherein: a limiting rib is arranged on one side wall of the chip seat; when the process cartridge is mounted to the main assembly, the stopper rib is inserted between the corresponding two of the protruding portions.

10. A process cartridge according to claim 8, wherein: the processing box is provided with abutting surfaces positioned on two opposite sides of the chip seat; when the process cartridge is mounted to the main assembly, the front end of the boss is pressed against the abutment surface on the corresponding side.