End cover and developing box

Abstract

The utility model provides an end cover and a developing box with the end cover, the end cover is detachably connected with a shell of the developing box, the end cover comprises a main body part and a chip rack, and the chip rack is provided with a chip rack main body used for installing a chip; the end cover further comprises a flexible piece used for connecting the chip rack main body and the main body part; according to the scheme, the structure of the developing box can be simplified, the number of parts of the developing box is reduced, the assembling of the developing box is simpler, the condition of poor contact between the chip and the detection part caused by vibration of the chip can be improved, and the contact stability between the chip and the detection part is enhanced.

Description

[0001] This utility model claims the priority of the Chinese prior application with application number 202322877250.0, application date October 25, 2023, and invention name “An end cover and a developer box”. The entire contents of the prior application are cross-referenced in this application. Technical Field

[0002] The utility model relates to the field of electronic photographic imaging, in particular to an end cover detachably connected to a shell of a developing box, and a developing box comprising the end cover and detachably installed in an electronic photographic imaging device. Background Art

[0003] A developer cartridge is a consumable product used in imaging devices such as laser printers or copiers, which stores the developer required for imaging. When working, the driving force receiving member in the developer cartridge receives the driving force from the imaging device, and the powder feeding member and the developing member installed in the developer cartridge rotate in a predetermined direction at a predetermined speed. The powder feeding member is used to supply the developer to the surface of the developing member, and the developing member is used to supply the developer to the surface of the photosensitive member where an electrostatic latent image is formed, so that the electrostatic latent image is developed.

[0004] For example, when a developing box in the prior art needs to be installed in an imaging device, it needs to be pre-installed on a photosensitive component. The photosensitive component includes a photosensitive member rotatably arranged on the photosensitive component, the photosensitive member is arranged along the length direction of the photosensitive component, and the photosensitive component is detachably installed in the imaging device. When the developing box is installed on the photosensitive component, the developing box will cooperate with the photosensitive component and thus be subjected to a forced thrust from the photosensitive component, so that the developing member arranged in the developing box contacts the photosensitive member.

[0005] The prior art provides a developing box, including a driving force receiving member that cooperates with a driving member provided in an imaging device and receives a rotational driving force, wherein the driving force receiving member is provided on one side of the developing box in the length direction; a chip for cooperating with a detection component in the imaging device is also provided on the same side as the driving force receiving member. In order to prevent the vibration of the developing box caused by the driving force receiving member when transmitting the rotational driving force, which causes poor contact between the chip and the detection component of the imaging device, the prior art separates the chip holder for mounting the chip provided on the developing box from the end cover of the developing box, and enables the chip holder to move relative to the end cover to ensure stable contact between the chip and the detection component in the imaging device. In order to realize the above functions, a large number of components need to be provided on the developing box, which complicates the assembly of the developing box. Utility Model Content

[0006] The end cover provided by the utility model can simplify the structure of the developing box, reduce the number of parts of the developing box, and make the assembly of the developing box easier.

[0007] The end cover is detachably connected to the shell of the developing box, and the end cover includes a main body and a chip frame, wherein the chip frame has a chip frame main body for mounting chips; the end cover also includes a flexible member for connecting the chip frame main body and the main body.

[0008] In some embodiments, the chip rack is detachably connected to the main body; one end of the flexible member is connected to the main body, and the other end is connected to the chip rack body; through the flexible member, the chip rack body is movable relative to the main body; the end cover is also provided with a first limiting portion, and before the chip rack is subjected to external force, there is a gap between the first limiting portion and the chip rack body.

[0009] In some embodiments, the end cap is also provided with a connecting mechanism for connecting the chip frame and the main body, the connecting mechanism includes a combining portion and a combined portion that cooperate with each other, at least a portion of the combining portion is arranged on the chip frame, and at least a portion of the combined portion is arranged on the main body.

[0010] In some embodiments, the combining portion is a buckling portion provided on the flexible member, and the combined portion is provided as a hole or a groove matched with the buckling portion.

[0011] In some embodiments, the combining portion is a matching hole formed on the first limiting portion, the combined portion is a pin that matches the matching hole, and the pin abuts against the main body.

[0012] Preferably, a protrusion is further provided on the first limiting portion, the matching hole is formed on the protrusion, and the main body is formed with a first through hole for matching with the protrusion, and the matching hole matches with the pin through the first through hole.

[0013] In some embodiments, the coupling portion is configured as a threaded hole formed on the first limiting portion, the coupled portion is configured as a screw that cooperates with the threaded hole, and the screw abuts against the main body.

[0014] Preferably, the main body is formed with a second through hole for cooperating with a screw, and the screw cooperates with the threaded hole through the second through hole.

[0015] In some embodiments, one end of the flexible member is extended from the chip frame body, and the other end is abutted against the main body.

[0016] The developing box provided by the utility model comprises a shell, a developing component and the end cover as described above, wherein the developing component is rotatably arranged in the shell, and the end cover is detachably connected to one end of the shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1It is a three-dimensional view of the developing box involved in Example 1 of the utility model.

[0018] Figure 2 It is another three-dimensional view of the developing box involved in Example 1 of the utility model.

[0019] Figure 3 It is a three-dimensional view of the end cover of the developing box according to Example 1 of the utility model.

[0020] Figure 4 This is a view of the developer box involved in Example 1 of the utility model, observed from the side where the end cover of the developer box is located in the length direction of the developer box.

[0021] Figure 5 The developer box edge of the utility model embodiment 1 Figure 4 The cross-sectional view along the CC direction is shown in FIG.

[0022] Figure 6 It is another three-dimensional view of the end cover of the developing box involved in Example 1 of the utility model.

[0023] Figure 7 It is a three-dimensional diagram of the end cover involved in Example 2 of the utility model.

[0024] Figure 8 It is an exploded view of the end cover involved in Example 2 of the utility model.

[0025] Fig. 9 It is a three-dimensional diagram of a chip rack in a developing box involved in Example 2 of the utility model.

[0026] Fig.10 It is an exploded view of the first deformed structure of the end cover involved in Example 2 of the utility model.

[0027] Fig.11 and Fig.12 It is an exploded view of the second deformation structure of the end cover involved in Example 2 of the utility model. DETAILED DESCRIPTION

[0028] The embodiment of the developing box provided by the utility model is described in detail below with reference to the accompanying drawings.

[0029] Example 1

[0030] Figure 1 1 is a three-dimensional view of the developing box 100 provided by the present invention, as shown in FIG. Figure 1As shown, the developing box 100 includes a shell 11 for accommodating a developer, and the length direction of the shell 11 is consistent with the length direction of the developing box 100; the developing box 100 also includes a developing member 12 arranged along the length direction of the shell 11, and the developing member 12 is rotatably arranged in the shell 11; the developing box 100 also includes a conductive bracket 13 and an end cover 14 respectively arranged at both ends of the length direction of the developing box 100; the conductive bracket 13 is detachably connected to one end of the length direction of the shell 11 and supports the developing member 12, and at least a part of the conductive bracket 13 is made of conductive material and can be rotatably connected to the developing member 12. The developing element 12 and the conductive element in the imaging device form an electrical connection; the developing box 100 is also provided with a locked portion 111 that cooperates with the locking member provided in the photosensitive component, and the locked portion 111 can be separately provided with the shell 11 of the developing box or can be integrally formed with the shell 11; the locking member in the photosensitive component cooperates with the locked portion 111 of the developing box, so that the developing box is locked on the photosensitive component; the shell of the developing box 100 is also provided with a powder filling port 112 that is connected to the cavity containing the developer in the developing box 100, and the developer can be added through the powder filling port 112.

[0031] Figure 2 1 is another three-dimensional view of the developing box 100 provided by the present invention. Figure 2 As shown, the end cover 14 is detachably connected to one end of the shell 11 in the length direction; the developing box 100 also includes a driving force receiving member 15 for cooperating with a driving member provided in the imaging device to transmit rotational power; the driving force receiving member 15 has an axis L2; ​​preferably, the axis L2 is parallel to the axis L1 of the developing member 12, and is parallel to the length direction of the developing box 100 or the shell 11; the end cover 14 cooperates with the driving force receiving member 15, and at least a portion of the driving force receiving member 15 is exposed from the end cover 14 to cooperate with the driving member of the imaging device to transmit rotational power.

[0032] The developing box 100 is also provided with a pushed portion for receiving the pushing force of the pushing portion in the photosensitive component, specifically, Figure 1 and Figure 2 As shown, the forced pushing portion includes a first forced pushing portion 131 arranged on the conductive bracket 13 and a second forced pushing portion 141 arranged on the end cover 14, which are used to receive the pushing force of the first forced pushing portion and the second forced pushing portion correspondingly arranged in the photosensitive component, and make the developing member 12 contact with the photosensitive member in the photosensitive component; the first forced pushing portion 131 and the second forced pushing portion 141 are not limited to being arranged on the conductive bracket 13 and the end cover 14, and can also be arranged on the shell 11, integrally formed with the shell 111 or separately arranged from the shell 11.

[0033] The developer box 100 is also provided with a chip for contacting a detection component in an imaging device and a chip frame for mounting the chip. Preferably, the chip frame is arranged at one end of the developer box 100 in the length direction, and the chip frame and the driving force receiving member 15 are arranged on the same side. Further, the chip frame is arranged on the end cover 14. Specifically, as Figure 2 As shown, the end cover 14 includes a chip frame 143 and a connecting portion 145, and the chip frame 143 is connected to the main body 142 of the end cover 14 through the connecting portion 145; the chip frame 143 is also provided with a chip mounting portion 146 for mounting the chip; the connecting portion 145 extends from the main body 142, and at least a portion thereof can move relative to the main body 142; further, at least a portion of the connecting portion 145 can be bent or twisted relative to the main body 142; further, a portion of the connecting portion 145 is connected to the main body 142, and a portion thereof is connected to the chip frame 143; specifically, one end of the connecting portion 145 is connected to the main body 142, and the other end is connected to the chip frame 143; when an external force acts and causes the connecting portion 145 to bend or twisted relative to the main body 142, the chip frame 143 will also move relative to the main body 142 as the connecting portion 145 is deformed.

[0034] In the end cover 14 provided by the present invention, the chip frame 143, the main body 142 and the connecting portion 145 are integrally formed, which can simplify the structure of the developing box and reduce the parts of the developing box.

[0035] Figure 3 The utility model provides a three-dimensional view of the end cover of the developing box. Figure 3 The specific implementation of the end cap 14 provided by the utility model is described as follows. Figure 3As shown, the end cover 14 includes a second forced pushing portion 141 for receiving the pushing force of the second forced pushing portion of the photosensitive component; the end cover 14 also includes a supporting portion 147 cooperating with the driving force receiving member 15, and the supporting portion 147 is also provided with a first hole 10b cooperating with the driving force receiving member 15, and the driving force receiving member 15 can rotate relative to the supporting portion 147 in the first hole 10b; the end cover 14 is also provided with a first limiting portion, and the chip frame 143 is also provided with a first limited portion cooperating with the first limiting portion. Through the cooperation of the first limiting portion and the first limited portion, the activity of the chip frame 143 can be limited, so that the activity of the chip frame 143 is controlled within a certain range. Specifically , the first limiting part and the first limited part are matched with the shaft and the hole; further, the first limiting part arranged on the end cover 14 is a limiting column 144, and the chip frame 143 is also provided with a second hole 10a matched with the limiting column 144, and the second hole 10a is the first limited part; the limiting column 144 extends from the main body 142 of the end cover 14, and a gap is maintained between the outer surface of the limiting column 144 and the inner surface of the second hole 10a; the second hole 10a can be set as a blind hole or a through hole; the limiting column 144 and the second hole 10a can also be interchangeable, that is, the limiting column 144 is arranged on the chip frame 143, and the second hole 10a is arranged on the end cover 14. The limiting column 144 can be set as a shape with grooves or protrusions around it, or it can be set as a cylindrical shape, preferably a shape with grooves or protrusions around it, which can reduce the amount of glue used and reduce the shrinkage problem during injection molding. The chip frame 143 is also provided with a second limiting portion 148. When the developing box 100 is installed in the imaging device, the second limiting portion 148 abuts against the side wall of the imaging device to limit the movement of the chip frame 143 and make the chip more stably contact with the detection component of the imaging device.

[0036] Figure 4 This is a view of the developing box provided by the utility model, in the length direction of the developing box, observed from the side where the end cover of the developing box is located, such as Figure 4 As shown, the mounting portion 146 is provided with a mounting surface 1461 for mounting a chip that contacts a detection component in an imaging device; Figure 4The state of the developer box 100 shown is that the installation surface 1461 is placed parallel to the horizontal plane, and the installation surface 1461 is placed upward opposite to the direction of gravity. Therefore, based on the state of the developer box 100 at this time, the direction of gravity is defined as the downward direction of the developer box, and the direction opposite to gravity is defined as the upward direction of the developer box. At the same time, the side where the developing part 12 is located is the front direction of the developer box, and the direction opposite to the front direction is the rear direction of the developer box. The up and down directions are perpendicular to the front and back directions.

[0037] Figure 4 The plane AA shown in the figure is a first plane passing through the axis L2 of the driving force receiving member 15 and perpendicular to the up-down direction, the mounting surface 1461 is above the first plane, and the connecting portion 145 is below the first plane; Figure 4 The plane BB shown in the figure is a second plane passing through the center line L4 of the limiting column 144 and perpendicular to the up-down direction, the mounting surface 1461 is located above the second plane, and the connecting portion 145 is located below the second plane, and along the up-down direction, the limiting column 144 is located between the chip mounting surface 1461 and the connecting portion 145; further, along the up-down direction, the distance between the axis L2 of the driving force receiving member 15 and the connecting portion 145 is greater than the distance between the axis L2 of the driving force receiving member 15 and the chip mounting surface 1461, such a setting can reduce the influence of the vibration of the driving force receiving member 15 on the chip mounted on the chip frame 143, so that the chip mounted on the chip frame 143 can be more stably contacted with the detection component in the imaging device. There is a gap between the hole 10a of the chip frame 143 and the limiting column 144. When the connecting portion 145 is twisted relative to the main body 142 along the direction r1 or r1', the chip frame 143 can move relative to the main body 142 along the direction r1 or r1', and the movement direction of r1 or r1' is located in a plane perpendicular to the length direction of the shell 11 of the developer box, that is, the chip frame 143 can move relative to the main body 142 of the end cover 14 along the plane perpendicular to the length direction of the shell 11 of the developer box. Figure 4 The direction of r1 or r1' shown is swung.

[0038] Figure 5 The utility model provides a developing box edge Figure 4 The cross-sectional view in the CC direction is shown in Figure 5As shown, when the connecting portion 145 is bent and deformed relative to the main body 142 along the direction of r2 or r2', the chip rack 143 can move relative to the main body 142 along the direction of r2 or r2', and accordingly, the chip mounting portion 146 also moves along with the chip rack 143 along the direction of r2 or r2', and the movement direction of r2 or r2' is located in a plane passing through the center line L4 of the limiting column 144 and parallel to the up and down directions, that is, the chip rack 143 can swing in a plane passing through the center line L4 of the limiting column 144 and parallel to the up and down directions.

[0039] When the driving force receiving member 15 cooperates with the driving member in the imaging device to transmit rotational power, the developing box 100 will generate a certain vibration, and the vibration amplitude of the side where the driving force receiving member is located will be larger than that of the other side of the developing box. At the same time, the chip arranged on the same side of the length direction of the developing box as the driving force receiving member 15 will also vibrate, which may cause poor contact between the chip and the detection component in the imaging device. Therefore, the implementation method of the chip frame 143 provided in the utility model, which is connected to the end cover 14 and moves relative to the end cover 14, can improve the poor contact between the chip and the detection component caused by the vibration of the chip.

[0040] Specifically, the chip is mounted on the mounting surface 1461 of the chip frame 146. The chip can be moved along the chip frame. Figure 4 direction of r1 or r1', or along Figure 5 The connecting portion 145 moves in the direction of r2 or r2' as shown, and at the same time, generates a rebound force due to deformation, so that the chip frame 143 connected to the connecting portion 145 also has a certain rebound force in the direction of its movement, and the chip mounted on the chip frame 143 always maintains an elastic force when contacting the detection component of the imaging device, which can enhance the stability of the contact between the chip and the detection component.

[0041] Figure 6 This is another three-dimensional view of the end cover of the developer box provided by the utility model, and shows the direction of the mold release of the insert when the end cover is injected. Most of the components in the developer box in the prior art are injection molded, such as the shell, the end cover, the conductive bracket, etc. The end cover provided by the utility model requires at least 4 inserts as a mold to inject the end cover 14 provided by the utility model. Specifically, Figure 6As shown, the end cover 14 is placed in a posture when the axis L3 of the support portion 147 is placed in a vertical direction. The directions a and b shown in the figure are parallel to the axis L3. The first insert is demolded through the a direction, and the second insert is demolded along the b direction. In addition, the third insert is demolded through the c direction shown in the figure, and the fourth insert is demolded from the d direction shown in the figure. The d direction should be perpendicular to the mounting surface 1461, and the c direction is perpendicular to the a direction and the d direction shown at the same time.

[0042] Example 2

[0043] In the first embodiment, the chip frame 143 and the main body 142 are integrally formed. However, the chip frame 143 and the main body 142 may also be separately formed, which also has the above beneficial effects. Figure 7-Figure 12 As shown, Example 2 of the present application will be introduced next, and the parts that are the same as Example 1 will not be repeated in this example.

[0044] like Figure 7-9 As shown, the chip frame 143 has a chip frame body 1431 and a mounting portion 146 for mounting the chip, the mounting portion 146 includes a mounting surface 1461 for mounting the chip; the end cover 14 includes a main body 142 and a connecting portion 145, one end of the connecting portion 145 is connected to the main body 142, and the other end is connected to the chip frame body 1431; through the connecting portion 145, the chip frame body 1431 is movable relative to the main body 142, preferably, the connecting portion 145 is configured as a plate-shaped flexible member; it can not only improve the poor contact with the detection component caused by the vibration of the chip, but also enhance the contact stability between the chip and the detection component.

[0045] The chip frame 143 and the end cover 14 are separately arranged. Specifically, the end cover 14 is also provided with a connecting mechanism for connecting the chip frame 143 and the end cover 14, and the connecting mechanism includes a coupling portion and a coupled portion that cooperate with each other, at least a part of the coupling portion is arranged on the chip frame 143, and at least a part of the coupled portion is arranged on the main body 142; the end cover 14 is also provided with a first limiting portion, and before the chip frame 143 is subjected to external force, there is a gap between the first limiting portion and the chip frame main body 1431.

[0046] In some embodiments, the first limiting portion is formed integrally with the main body 142; the combining portion is a snap-fit ​​portion 1451 provided on the connecting portion 145, and the combined portion is a hole or groove 1421 provided on the main body 142, and the snap-fit ​​portion 1451 cooperates with the hole or groove 1421 to detachably connect the chip frame 143 to the main body 142. Preferably, the combining portion 1451 is configured as an elastic snap; so that when the chip needs to be upgraded and updated, the chip frame 143 can be removed from the end cover 14, and then the chip can be upgraded or replaced, and the chip frame that has been installed with the upgraded chip can also be directly replaced.

[0047] In some embodiments, Fig.10 As shown, the first limiting portion is formed integrally with the connecting portion 145; the combining portion is arranged on the first limiting portion, preferably, the combining portion is arranged as a matching hole 1442, and the combined portion is arranged as a pin 1452 matching with the matching hole 1442; the end cover 14 also includes a first through hole 1422 formed on the main body 142, preferably, the first limiting portion is also provided with a protrusion 1441 matching with the first through hole 1422 on the side close to the main body 142, and the matching hole 1442 is arranged on the protrusion 1441, and the protrusion 1441 passes through the first through hole 1422, so that the pin 1452 matches with the matching hole 1442, and the pin 1452 abuts against the main body 142, thereby detachably connecting the chip frame 143 to the main body 142.

[0048] In some embodiments, Fig.11 and Fig.12 As shown, the first limiting portion is formed integrally with the connecting portion 145; the combining portion is arranged on the first limiting portion, preferably, the combining portion is arranged as a threaded hole 1443, and the combined portion is arranged as a screw 1453 cooperating with the threaded hole 1443, and the end cover 14 also includes a second through hole 1423 formed on the main body 142 and cooperating with the screw 1453, the screw 1453 passes through the second through hole 1423 and cooperates with the threaded hole 1443, and the screw 1453 abuts against the main body 142, thereby detachably connecting the chip frame 143 to the main body 142.

[0049] In some embodiments, the connection portion 145 is configured such that one end of the connection portion 145 extends from the chip frame body 1431 and the other end abuts against the main body 142 .

[0050] As described above, by providing a connecting mechanism having a coupling portion and a coupled portion, the chip frame 143 can be detachably mounted on the end cover 14, so that when the chip needs to be upgraded or updated, the chip frame 143 can be removed from the main body 142, and then the chip can be upgraded or replaced, or the chip frame on which the upgraded chip is already installed can be directly replaced. At the same time, there is no need to provide a large number of components, thereby simplifying the structure of the developing box 100; a connecting portion 145 configured as a plate-like flexible member is provided between the chip frame 143 and the end cover 14, which can not only improve the poor contact with the detection component caused by vibration of the chip, but also enhance the contact stability between the chip and the detection component.

Claims

1. An end cover, detachably connected to the housing of the developing cartridge, the end cover comprising a main body and a chip frame, the chip frame having a chip frame main body for mounting a chip; It is characterized in that The end cover also includes a flexible member for connecting the chip frame body and the main body.

2. The end cap according to claim 1, characterized in that: The chip rack is detachably connected to the main body; one end of the flexible member is connected to the main body, and the other end is connected to the chip rack body; through the flexible member, the chip rack body is movable relative to the main body; The end cover is further provided with a first limiting portion, and before the chip frame is subjected to external force, there is a gap between the first limiting portion and the chip frame body.

3. The end cap according to claim 2, characterized in that: The end cover is also provided with a connecting mechanism for connecting the chip frame and the main body, the connecting mechanism includes a combining part and a combined part that cooperate with each other, at least a part of the combining part is arranged on the chip frame, and at least a part of the combined part is arranged on the main body.

4. The end cap according to claim 3, characterized in that: The combining portion is a buckling portion arranged on the flexible member, and the combined portion is arranged as a hole or a groove matched with the buckling portion.

5. The end cap according to claim 3, characterized in that: The combining portion is a matching hole formed on the first limiting portion, the combined portion is a pin matched with the matching hole, and the pin is in contact with the main body.

6. The end cap according to claim 5, characterized in that: The first limiting portion is also provided with a protrusion, the matching hole is formed on the protrusion, the main body is formed with a first through hole for matching with the protrusion, and the matching hole matches with the pin through the first through hole.

7. The end cap according to claim 3, characterized in that: The coupling portion is configured as a threaded hole formed on the first limiting portion, and the coupled portion is configured as a screw matched with the threaded hole, and the screw is in contact with the main body.

8. The end cap according to claim 7, characterized in that: The main body is formed with a second through hole for cooperating with a screw, and the screw is coupled with the threaded hole through the second through hole.

9. The end cap according to any one of claims 1 to 8, characterized in that: One end of the flexible member is extended from the chip frame body, and the other end is abutted against the main body.

10. A developing cartridge, characterized in that: The developing box comprises a shell, a developing member and an end cover as claimed in any one of claims 1 to 8, wherein the developing member is rotatably arranged in the shell, and the end cover is detachably connected to one end of the shell.

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