Electric connection structure and powder cylinder assembly

Abstract

The utility model discloses an electric connection structure and a powder cylinder assembly, the electric connection structure is used for being installed on the powder cylinder assembly, the powder cylinder assembly is detachably installed on an image forming device, the image forming device is provided with a drum assembly, a developing assembly and a high-voltage plate assembly, and the high-voltage plate assembly is provided with a high-voltage contact. The electric connection structure comprises a conductive part, the conductive part is provided with a first end and a second end, the first end of the conductive part is used for being electrically connected with the high-voltage contact, and the second end of the conductive part is used for being electrically connected with a preset conductive part of the drum assembly and / or the developing assembly. Compared with the prior art, the high-voltage contact of the high-voltage plate assembly is electrically connected to the drum assembly and / or the developing assembly under the action of the conductive part, so that the design complexity is effectively reduced, the design space of the printer is saved to a certain extent, the size of the whole machine is reduced, the product is more competitive, and the user experience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of image forming devices, in particular to an electrical connection structure and a toner cartridge assembly. Background Art

[0002] In products such as image forming devices like laser printers, copiers, and multifunction machines, a toner cartridge is provided inside. The toner cartridge is an important component in the image forming device. In the prior art, there is a toner cartridge type of toner cartridge, which includes a toner cartridge assembly for providing toner, a developing assembly for converting an electrostatic latent image into a real image, and a drum assembly.

[0003] For the high-voltage electrical connection of this type of toner cartridge, generally, the drum assembly is directly connected to the printer body, or is connected to the high-voltage board of the printer body through a drawer transfer connection; and for the developing assembly, the electrical connection is generally led to the drum assembly or directly connected to the high-voltage board of the printer body. When using the above electrical connection scheme, it is often easy to be limited by space during the overall machine design.

[0004] In order to make full use of the upper and lower spaces in this type of printer, the high-voltage board is often arranged below the toner cartridge. When the drum assembly / drawer transfer connection is used to connect to the high-voltage board of the printer body, the electrical connection medium (such as a shrapnel, a wire spring, etc.) needs to be separately wound, thereby occupying a part of the space and encroaching on the toner cartridge installation position. When the toner cartridge capacity is certain, the machine design size needs to be larger, and the product competitiveness decreases. Summary of the Utility Model

[0005] The purpose of the utility model is to provide an electrical connection structure and a toner cartridge assembly to solve the technical problems in the prior art, which can save the design space of the printer to a certain extent, thereby reducing the overall machine size.

[0006] In the first aspect, the utility model provides an electrical connection structure for being installed on a toner cartridge assembly. The toner cartridge assembly is detachably installed on an image forming device. The image forming device is provided with a drum assembly, a developing assembly, and a high-voltage board assembly. The high-voltage board assembly has high-voltage contacts. The electrical connection structure includes a conductive member, which has a first end and a second end. The first end of the conductive member is used for electrically connecting with the high-voltage contacts, and the second end of the conductive member is used for electrically connecting with a preset conductive component of the drum assembly and / or the developing assembly.

[0007] For an electrical connection structure as described above, preferably, the first end and / or the second end of the conductive member can elastically expand and contract.

[0008] An electrical connection structure as described above, wherein preferably, the conductive member includes a main body portion and a bent portion connected to the main body portion. The main body portion is used to be fixed on the powder cartridge assembly. The first end of the conductive member is formed at one end of the main body portion away from the bent portion, and the second end of the conductive member is formed on the bent portion. A preset included angle is formed between the extending direction of the bent portion and the extending direction of the main body portion.

[0009] An electrical connection structure as described above, wherein preferably, the conductive member is a conductive sheet or a conductive spring.

[0010] An electrical connection structure as described above, wherein preferably, the preset conductive component of the drum assembly is the OPC conductive steel shaft and / or the charging roller steel shaft of the drum assembly, and the preset conductive component of the developing assembly is the developing roller steel shaft and / or the powder feeding roller steel shaft of the developing assembly.

[0011] In a second aspect, the present invention provides a powder cartridge assembly, which is detachably installed in an image forming device. The image forming device is equipped with a drum assembly, a developing assembly, and a high-voltage plate assembly. The high-voltage plate assembly has high-voltage contacts. The powder cartridge assembly includes:

[0012] A powder cartridge body for storing toner and supplying toner to the developing assembly;

[0013] A conductive member provided on the powder cartridge body; wherein,

[0014] The conductive member has a first end and a second end. The first end of the conductive member is used for electrically connecting with the high-voltage contact, and the second end of the conductive member is used for electrically connecting with the preset conductive component of the drum assembly and / or the developing assembly.

[0015] A powder cartridge assembly as described above, wherein preferably, the first end and / or the second end of the conductive member can elastically expand and contract.

[0016] A powder cartridge assembly as described above, wherein preferably, the conductive member includes a main body portion and a bent portion connected to the main body portion. The main body portion is fixed on the powder cartridge body. The first end of the conductive member is formed at one end of the main body portion away from the bent portion, and the second end of the conductive member is formed on the bent portion. A preset included angle is formed between the extending direction of the bent portion and the extending direction of the main body portion.

[0017] A powder cartridge assembly as described above, wherein preferably, the conductive member is a conductive sheet or a conductive spring.

[0018] A powder cartridge assembly as described above, wherein preferably, the powder cartridge body can move along the axial direction of the developing assembly or the drum assembly. When the powder cartridge body moves to the end of the moving path, the first end of the conductive member is electrically connected to the high-voltage contact, and the second end of the conductive member is electrically connected to a preset conductive component of the drum assembly and / or the developing assembly.

[0019] Compared with the prior art, the present utility model provides an electrical connection structure. The electrical connection structure includes a conductive member for being installed on the powder cartridge assembly. While installing the powder cartridge assembly on the image forming device, through the action of the conductive member, the high-voltage contact of the high-voltage plate assembly is electrically connected to the drum assembly and / or the developing assembly, thereby effectively reducing the design complexity, saving the design space of the printer to a certain extent, reducing the overall size of the machine, making the product more competitive, and improving the user experience. Description of the Drawings

[0020] Figure 1 It is a schematic diagram of the overall structure of the powder cartridge assembly provided by the embodiment of the present utility model when installed on the image forming device from one perspective;

[0021] Figure 2 It is a schematic diagram of the overall structure of the powder cartridge assembly provided by the embodiment of the present utility model when installed on the image forming device from another perspective;

[0022] Figure 3 It is a schematic diagram of the structure of the powder cartridge assembly provided by the embodiment of the present utility model;

[0023] Figure 4 It is a schematic diagram of the structure of the conductive member provided by the embodiment of the present utility model in the state where the high-voltage contact and the OPC conductive steel shaft are not connected;

[0024] Figure 5 It is a schematic diagram of the structure of the conductive member provided by the embodiment of the present utility model in the state where the high-voltage contact and the OPC conductive steel shaft are connected.

[0025] Description of the Reference Numerals:

[0026] 1 - Powder cartridge assembly, 2 - Developing assembly, 3 - Drum assembly, 4 - High-voltage plate assembly, 5 - Conductive member, 51 - Main body part, 52 - Bent part, 6 - High-voltage contact, 7 - OPC conductive steel shaft, 8 - Developing roller steel shaft, 9 - Drawer. Detailed Embodiments

[0027] The embodiments described below by referring to the drawings are exemplary and are only used to explain the present utility model, and should not be construed as a limitation to the present utility model.

[0028] Refer to Figures 1 to 5As shown in the figure, an embodiment of the present utility model provides an electrical connection structure for being installed on a powder cartridge assembly 1, and the powder cartridge assembly 1 is detachably installed on an image forming device, and the image forming device is equipped with a drum assembly 3, a developing assembly 2 and a high voltage board assembly 4.

[0029] The powder cartridge assembly 1 is used for storing toner and supplying toner to the developing assembly 2. The developing assembly 2 includes a developing roller for adsorbing toner and a powder feeding roller for conveying toner. The developing roller plays a functional connection role of transferring the toner in the powder bin main body to the drum assembly 3. The drum assembly 3 includes a photosensitive drum for imaging and a charging roller for charging the photosensitive drum. The photosensitive drum is a cylinder coated with an organic material on its surface and is charged by contacting the charging roller.

[0030] When the printer receives print data, the light beam generated by the laser emitter scans on the photosensitive drum. First, a latent image composed of charges is formed on the surface of the photosensitive drum. When the latent image passes through the developing roller, the toner is adsorbed onto the photosensitive drum, and the latent image is converted into a real image. Subsequently, the printing paper is fed in, and the toner on the surface of the photosensitive drum is transferred onto the printing paper to form an image. After high-temperature heating, the image is solidified on the printing paper, and the printing process of one page is completed.

[0031] When the printer is working, its internal consumable parts (such as the photosensitive drum, charging roller, developing roller, powder feeding roller, etc.) generally need to be connected to a high voltage to provide an electric field force to control the movement of the toner, so as to realize the transfer of the toner and achieve the printing effect. The high voltage of the printer is provided by the high voltage board assembly 4, and the high voltage board assembly 4 has a high voltage contact 6.

[0032] In the embodiment provided by the present application, the electrical connection structure includes a conductive member 5. The function of the conductive member 5 is to connect the high voltage from the printer body to the drum assembly 3 and / or the developing assembly 2. Specifically, the conductive member 5 has a first end and a second end. The first end of the conductive member 5 is used for electrically connecting with the high voltage contact 6, and the second end of the conductive member 5 is used for electrically connecting with the preset conductive parts of the drum assembly 3 and / or the developing assembly 2, so as to realize the connection of the high voltage from the printer to the drum assembly 3 and / or the developing assembly 2. At the same time, it is not necessary to separately lead the electrical connection of the drum assembly 3 and / or the developing assembly 2 to the high voltage board assembly 4, which can effectively save space and thus improve the product competitiveness.

[0033] In a feasible embodiment, referring to Figure 2 and Figure 4As shown, the drum assembly 3 and the developing assembly 2 are both installed on the drawer 9. The powder cartridge assembly 1 can move along the axial direction of the developing assembly 2 or the drum assembly 3 for the installation of the powder cartridge assembly 1. After the drawer 9 loaded with the drum assembly 3 and the developing assembly 2 is installed in the printer, there is no electrical connection between the drum assembly 3 and / or the developing assembly 2 and the printer body until the powder cartridge assembly 1 moves to the end of the moving path and the powder cartridge assembly 1 is installed in place. The first end of the conductive member 5 is electrically connected to the high-voltage contact 6, and the second end of the conductive member 5 is electrically connected to the preset conductive component of the drum assembly 3 and / or the developing assembly 2, thereby realizing the high-voltage electrical connection between the drum assembly 3 and / or the developing assembly 2 and the printer body.

[0034] While installing the powder cartridge assembly 1, the high-voltage plate assembly 4 is synchronously and highly connected to the drum assembly 3 and / or the developing assembly 2, effectively reducing the design complexity, saving the design space to a certain extent, thereby reducing the overall size of the machine, making the product more competitive, improving the user experience, and enhancing the reliability and stability.

[0035] Preferably, referring to Figure 2 and Figure 4 As shown, to make full use of the space, when the conductive member 5 is electrically connected to the high-voltage contact 6, the developing assembly 2, the drum assembly 3, and the high-voltage plate assembly 4 are distributed in sequence along the gravity direction. The drum assembly 3 can be fixed to the drawer 9 as a whole for simultaneous replacement. The developing assembly 2 is fixed in the inner space above the drawer 9 after installation. When the drawer 9 is installed in the printer, the high-voltage plate assembly 4 is located below the drum assembly 3. In this way, the space inside the printer can be fully utilized without increasing the width dimension, and the electrical connection design is simple.

[0036] To improve the stability of the electrical connection of the conductive member 5, the first end and / or the second end of the conductive member 5 can elastically expand and contract. During the movement of the powder cartridge assembly 1, the conductive member 5 contacts the preset conductive component and the high-voltage contact 6. Then the powder cartridge assembly 1 will further move, and the conductive member 5 will undergo elastic deformation under compression and generate an elastic restoring force. After the powder cartridge assembly 1 moves to the installed position, the elastic restoring force of the conductive member 5 reaches the maximum value. Through this elastic restoring force, the conductive member 5 can be kept in close and stable contact with the preset conductive component and the high-voltage contact 6, improving the electrical connection stability and reliability of the conductive member 5.

[0037] In the embodiment provided by the present utility model, the conductive member 5 is a conductive sheet or a conductive spring. In a feasible implementation manner, the conductive member 5 is a strip-shaped sheet structure. Referring to Figure 3 as shown, it includes a main body portion 51 and a bent portion 52 connected to the main body portion 51. The bent portion 52 and the main body portion 51 are preferably integrally formed, and it is made into an integral structure by bending a metal sheet to improve the overall strength and reduce the production difficulty, where:

[0038] The main body 51 is fixed on the powder cartridge assembly 1 , and a plurality of spaced-apart mounting holes may be provided on the main body 51 . Threaded holes are provided at corresponding positions on the outer wall surface of the powder cartridge assembly 1 . Bolts pass through the mounting holes and are threadedly connected with the threaded holes, thereby detachably fixing the conductive member 5 on the outer surface of the powder cartridge assembly 1 .

[0039] The first end of the conductive member 5 is formed at an end of the main body 51 away from the bending portion 52. The first end of the conductive member 5 cannot be elastically extended or has a small elastic extension ability. In order to improve the contact stability and electrical connection reliability between the first end of the conductive member 5 and the high-voltage contact 6, the high-voltage contact 6 can be elastically extended. When designing, the high-voltage board assembly 4 leads the high voltage to the installation position near the powder cartridge assembly 1 through conductive sheets, springs, wires, etc. and forms a retractable / deformable high-voltage contact 6. During the movement of the powder cartridge assembly 1, the main body 51 contacts the high-voltage contact 6, and the powder cartridge assembly 1 will then move further. The high-voltage contact 6 will be elastically deformed under compression to generate an elastic restoring force. After the powder cartridge assembly 1 is moved to and installed in place, the elastic restoring force of the high-voltage contact 6 reaches a maximum value. Through the end face contact of the main body 51 and the pressure of the elastic restoring force, the high-voltage contact 6 can maintain close and stable contact with the main body 51, thereby improving the electrical connection stability and reliability of the conductive member 5.

[0040] The second end of the conductive member 5 is formed on the bending portion 52, and a preset angle is formed between the extension direction of the bending portion 52 and the extension direction of the main body 51. The bending portion 52 will move toward one end of the main body 51 after being subjected to force, accumulating elastic restoring force. The bending design of the bending portion 52 ensures that the bending portion 52 can have sufficient elastic force to tilt up when it is electrically contacted with the preset conductive component under long-term pressure, fully contacting with the preset conductive component, and has a simple structure.

[0041] In a feasible implementation manner, the preset conductive component of the drum assembly 3 is the OPC conductive steel shaft 7 of the drum assembly 3 and / or the charging roller steel shaft, Figure 4 as well as Figure 5 As shown, the OPC conductive steel shaft 7 is exposed outside the end cover. After the powder cartridge assembly 1 is installed in place, the first end of the conductive member 5 is connected to the high-voltage contact 6, and the second end of the conductive sheet is connected to the OPC conductive steel shaft 7, so that the high voltage is connected from the printer body to the drum assembly 3. At the same time, there is no need to separately connect the drum assembly 3 to the high-voltage board assembly 4, which can effectively save space and thus improve product competitiveness. When the developing assembly 2 is installed in the drawer 9, it can be directly connected to the conductive parts of the drum assembly 3 and realize the voltage difference through voltage division.

[0042] In another feasible embodiment, the preset conductive component of the developing component 2 is the developing roller steel shaft 8 and / or the powder feeding roller steel shaft of the developing component 2. After the powder cartridge component 1 is installed in place, the first end of the conductive member 5 is connected to the high-voltage contact 6, and the second end of the conductive member 5 is connected to the developing roller steel shaft 8 and / or the powder feeding roller steel shaft, so as to realize the high-voltage electrical connection between the developing component 2 and the printer body.

[0043] Those skilled in the art can know that multiple conductive sheets can be provided, which can be connected to the OPC conductive steel shaft 7 and / or the charging roller steel shaft in the drum component 3 and the high-voltage contact 6 at the same time, or can be connected to the high-voltage contact 6 and the developing roller steel shaft 8 and / or the powder feeding roller steel shaft in the developing component 2 at the same time, etc., which are not limited herein.

[0044] Based on the electrical connection structure provided by the above embodiments, the present invention also provides a powder cartridge component 1, which is detachably installed in an image forming device. The image forming device is equipped with a drum component 3, a developing component 2 and a high-voltage plate component 1, and the high-voltage plate component 1 has a high-voltage contact 6. Among them, the powder cartridge component 1 includes:

[0045] A powder cartridge body for storing toner and supplying toner to the developing component 2.

[0046] A conductive member 5 is arranged on the powder cartridge body. The conductive member 5 has a first end and a second end. The first end of the conductive member 5 is used for electrically connecting with the high-voltage contact 6, and the second end of the conductive member 5 is used for electrically connecting with the preset conductive component of the drum component 3 and / or the developing component 2.

[0047] When the powder cartridge component 1 is installed, through the action of the conductive member 5, the high-voltage contact 6 of the high-voltage plate component 4 is electrically connected to the drum component 3 and / or the developing component 2, thus effectively reducing the design complexity, saving the design space of the printer to a certain extent, reducing the overall size of the machine, making the product more competitive and improving the user experience.

[0048] The above has described in detail the structure, features and action effects of the present invention according to the embodiments shown in the drawings. The above are only the preferred embodiments of the present invention, but the present invention is not limited to the implementation scope shown in the drawings. Any changes made according to the concept of the present invention, or modified into equivalent embodiments with equivalent changes, still within the spirit covered by the specification and the drawings, should be within the protection scope of the present invention.

Claims

1. An electrical connection structure for being installed on a toner cartridge assembly, the toner cartridge assembly being detachably installed on an image forming apparatus, the image forming apparatus being equipped with a drum assembly, a developing assembly, and a high-voltage board assembly, the high-voltage board assembly having a high-voltage contact point, characterized in that, The electrical connection structure includes a conductive member having a first end and a second end. The first end of the conductive member is used for electrically connecting with the high-voltage contact, and the second end of the conductive member is used for electrically connecting with a preset conductive component of the drum assembly and / or the developing assembly.

2. The electrical connection structure according to claim 1, wherein, The first end and / or the second end of the conductive member can elastically expand and contract.

3. The electrical connection structure according to claim 1, characterized in that, The conductive member includes a main body portion and a bent portion connected to the main body portion. The main body portion is used for being fixed on the toner cartridge assembly. The first end of the conductive member is formed at one end of the main body portion away from the bent portion, and the second end of the conductive member is formed on the bent portion. A preset included angle is formed between the extending direction of the bent portion and the extending direction of the main body portion.

4. The electrical connection structure according to claim 1, wherein The conductive member is a conductive sheet or a conductive spring.

5. The electrical connection structure according to claim 1, wherein, The preset conductive component of the drum assembly is the OPC conductive steel shaft and / or the charging roller steel shaft of the drum assembly, and the preset conductive component of the developing assembly is the developing roller steel shaft and / or the powder feeding roller steel shaft of the developing assembly.

6. A powder cartridge assembly, detachably mounted on an image forming apparatus, the image forming apparatus being provided with a drum assembly, a developing assembly, and a high-voltage board assembly, the high-voltage board assembly having a high-voltage contact, characterized in that, The toner cartridge assembly includes: A toner cartridge body for storing toner and supplying toner to the developing assembly; A conductive member provided on the toner cartridge body; wherein, The conductive member has a first end and a second end. The first end of the conductive member is used for electrically connecting with the high-voltage contact, and the second end of the conductive member is used for electrically connecting with a preset conductive component of the drum assembly and / or the developing assembly.

7. The powder cartridge assembly according to claim 6, characterized in that, The first end and / or the second end of the conductive member can elastically expand and contract.

8. The powder cartridge assembly according to claim 6, characterized in that, The conductive member includes a main body portion and a bent portion connected to the main body portion. The main body portion is fixed on the toner cartridge body. The first end of the conductive member is formed at one end of the main body portion away from the bent portion, and the second end of the conductive member is formed on the bent portion. A preset included angle is formed between the extending direction of the bent portion and the extending direction of the main body portion.

9. The powder cartridge assembly according to claim 6, wherein, The conductive member is a conductive sheet or a conductive spring.

10. The powder cartridge assembly according to claim 6, wherein, The toner cartridge body can move along the axial direction of the developing assembly or the drum assembly. When the toner cartridge body moves to the end of the moving path, the first end of the conductive member is electrically connected with the high-voltage contact, and the second end of the conductive member is electrically connected with a preset conductive component of the drum assembly and / or the developing assembly.

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