Developing box

Abstract

The utility model discloses a developing box which comprises a box body which is provided with a first end and a second end which are oppositely arranged in a first direction, a third end and a fourth end which are oppositely arranged in a second direction, and a fifth end and a sixth end which are oppositely arranged in a third direction; the developing roller is located at the third end, and the rotating axis of the developing roller extends in the first direction; the driving part is used for receiving power to drive the developing roller to rotate; the storage medium is used for storing information of the developing box, the storage medium comprises a main body, a first limited part and a bracket, the first limited part and the bracket are arranged on the main body, the storage medium is mounted on the bracket, and in the third direction, the main body and the first limited part have height difference. According to the storage medium in the scheme, the limited part is clamped and matched with the limiting part in the support, the storage medium is limited, and the storage medium can be stably installed on the support and is not prone to disengaging or generating non-preset shaking.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic imaging, in particular to a developing box. Background Art

[0002] A developer cartridge is a removable component widely used in image forming devices. The developer cartridge is provided with a storage medium that stores information about the developer cartridge. When the developer cartridge is installed in the image forming device, the storage medium transmits this information to the image forming device, enabling the developer cartridge to be recognized by the image forming device. In the prior art, the storage medium is attached to the developer cartridge using adhesive. However, the adhesive can easily fail over time and the environment, making it difficult to stably attach the storage medium to the developer cartridge and, consequently, unable to stably transmit information to the image forming device. Utility Model Content

[0003] The technical problem to be solved by the present application is to provide an identification component and an installation part with a simple structure and stable operation.

[0004] The technical solution to the technical problem to be solved by this application is: a developing box, comprising:

[0005] The box body has a first end and a second end opposite to each other in a first direction, a third end and a fourth end opposite to each other in a second direction, and a fifth end and a sixth end opposite to each other in a third direction, wherein the first direction, the second direction, and the third direction intersect each other;

[0006] a developing roller, located at the third end, wherein the rotation axis of the developing roller extends in a first direction;

[0007] a driving portion, for receiving power to drive the developing roller to rotate, and located at the first end;

[0008] A storage medium for storing information of the developing cartridge, wherein the storage medium comprises a main body and a first limited portion provided on the main body;

[0009] a bracket, the storage medium is mounted on the bracket,

[0010] In the third direction, there is a height difference between the main body and the first limited portion.

[0011] In some embodiments, in the third direction, a height of the first limited portion is smaller than a height of the main body.

[0012] In some embodiments, a height of the first limited portion in the third direction is 0.5-1.1 mm, and a height of the main body in the third direction is 1.3-1.9 mm.

[0013] In some embodiments, the first restricted portion extends in the first direction and protrudes from the main body in the second direction, and the first restricted portion is a rib structure;

[0014] The bracket includes a first limiting portion, the first limiting portion extends in a first direction, the first limiting portion is a guide rail structure and has a guide opening, and the guide opening is located at the starting end of the extension of the first limiting portion;

[0015] The first restricted portion can be inserted into the first restricting portion along a first direction through the guide opening.

[0016] In some embodiments, in the third direction, the guide opening has a width greater than that of the remaining portion of the first limiting portion.

[0017] In some embodiments, the bracket further includes a second limiting portion, wherein the second limiting portion is further away from the end surface of the first end than the first limiting portion in the first direction;

[0018] The storage medium further includes a second limited portion, and the second limited portion can be engaged with the second limiting portion to limit the storage medium in the first direction.

[0019] In some embodiments, the second limiting portion is in the shape of a groove that is recessed in the third direction;

[0020] The second limited portion is disposed on an end surface of the first limited portion in the second direction, and protrudes along the second direction toward a direction away from the first limited portion.

[0021] In some embodiments, the second limiting portion is an elastic buckle, and the second limiting portion is provided with an abutting inclined surface.

[0022] The second limited portion is a convex block structure. When the storage medium is inserted into the first limited portion, the second limited portion abuts against the abutting inclined surface, causing the second limited portion to elastically avoid. After the second limited portion passes over the abutting inclined surface, the second limited portion recovers its deformation and engages with the second limited portion.

[0023] In some embodiments, the first limited portion and the second limited portion are located at corners around the main body.

[0024] In some embodiments, the storage medium is provided with an electrical contact surface on an upper end surface in the third direction, and a normal direction of the electrical contact surface intersects with an installation direction of the storage medium.

[0025] In some embodiments, the bracket has a top, and the top is the highest surface of the bracket in the third direction;

[0026] The top portion protrudes from the electrical contact surface in the third direction or is flush with the electrical contact surface.

[0027] In some embodiments, the first limited portion is a rib structure extending in the second direction, and the first limited portion is a guide rail structure extending in the second direction.

[0028] The first limited portion can be inserted into the first limiting portion along the second direction.

[0029] In some embodiments, the device further includes an abutment member that contacts an external component and causes the box body to move.

[0030] The beneficial effects of the present invention are as follows: the storage medium of the present invention is provided with a limiting portion which engages with the limiting portion in the bracket, which has a limiting effect on the storage medium, so that the storage medium can be stably installed on the bracket and is not easy to fall off or produce non-preset shaking. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 1 is a schematic structural diagram of the developing cartridge in Example 1;

[0032] Figure 2 This is a schematic structural diagram of the transmission assembly at the first end of the box body in Example 1;

[0033] Figure 3 is an exploded view of the first end of the box body in Example 1;

[0034] Figure 4 is an exploded view of the second mounting portion and the storage medium in the first embodiment;

[0035] Figure 5 is a cross-sectional view of the second mounting portion and the storage medium in the first embodiment;

[0036] Figure 6 is a structural diagram of the second end of the box body in Example 1;

[0037] Figure 7 is an exploded view of the second mounting portion and the storage medium in the second embodiment;

[0038] Figure 8 is a cross-sectional view of the second mounting portion and the storage medium in the second embodiment;

[0039] Figure 9 is an exploded view of the second mounting portion and the storage medium in Example 3;

[0040] Figure 10 It is a cross-sectional view of the second mounting portion and the storage medium in the third embodiment. DETAILED DESCRIPTION

[0041] The present invention is further described in detail below with reference to the accompanying drawings. It is apparent that the embodiments described are only a portion of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.

[0042] It should be noted that the terms "first," "second," etc. are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0043] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances.

[0044] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0045] In the above description, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0046] In the following description of directions, the left-right direction in the accompanying drawings is an embodiment of the first direction, the front-back direction is an embodiment of the second direction, and the up-down direction is an embodiment of the third direction. The first direction, the second direction, and the third direction are perpendicular to each other.

[0047] Example 1:

[0048] like Figures 1-6 As shown, this embodiment provides a developing box 1, which can be detachably mounted on a drum assembly of an image forming device. The developing box 1 includes a box body 10, a developing assembly, a transmission assembly 4, a lifting assembly and an identification assembly.

[0049] like Figure 1 As shown, the box body 10 has a first end 11 and a second end 12 disposed opposite each other in the first direction, a third end 13 and a fourth end 14 disposed opposite each other in the second direction, and a fifth end and a sixth end disposed opposite each other in the third direction. A handle 141 is provided on the box body 10, and the handle 141 is located at the fourth end 14. The transmission assembly 4 is located at the first end 11 and is used to receive power output by the image forming device and transmit the power to the components in the developing assembly. A first protective cover 31 is detachably fixedly mounted on the first end 11, and the first protective cover 31 at least partially covers the transmission assembly, and the first protective cover 31 can protect the transmission assembly. A second protective cover 121 is detachably fixedly mounted on the second end 12.

[0050] The developing assembly includes a developing roller 131, a stirring frame (not shown), and a powder feed roller (not shown). The developing roller 131, the stirring frame, and the powder feed roller are all rotatably supported by the first end 11 and the second end 12. The rotation axes of the developing roller 131, the stirring frame, and the powder feed roller all extend along the first direction. The powder feed roller is arranged adjacent to the developing roller 131. The powder feed roller transfers the developer to the developing roller 131, and the developing roller 131 transfers the developer to the photosensitive drum of the drum assembly. The stirring frame is used to stir the developer in the developing chamber, causing friction in the developer and preventing the developer from clumping. The developing assembly also includes a powder knife 132, which contacts the developing roller 131 to control the thickness of the developer layer on the developing roller 131.

[0051] like Figure 2-Figure 3 As shown, the first end 11 is provided with a transmission assembly 4, which includes a driving portion rotatably mounted on the first end 11. The rotation axis of the driving portion extends in a first direction. The driving portion includes a coaxially integrally formed driving gear 402 and a power receiving portion 401. The driving gear 402 is closer to the first end 11 than the power receiving portion 401 in the first direction. The power receiving portion 401 is used to connect to the power output shaft of the image forming device to receive the power output of the image forming device.

[0052] The transmission assembly 4 also includes a developing gear 41, a powder feeding gear 42, an idler gear 43, and a stirring gear 44. The developing gear 41 and the powder feeding gear 42 are both meshed with the drive gear 402 to receive power and rotate, and the idler gear 43 is meshed with the drive gear 402 and the stirring gear 44 to transmit power from the drive gear 402 to the stirring gear 44, so that the stirring gear 44 rotates. The developing gear 41 is coaxially fixedly mounted on the end of the developing roller 131 near the first end 11 and drives the developing roller 131 to rotate, the powder feeding gear 42 is coaxially fixedly mounted on the end of the powder feeding roller near the first end 11 and drives the powder feeding roller to rotate, and the stirring gear 47 is coaxially fixedly mounted on the end of the stirring frame near the first end 11 and drives the stirring frame to rotate. This embodiment does not limit the number of gears and the meshing relationship of the transmission assembly, and can be set according to actual needs.

[0053] like Figure 1 、 Figure 3 and Figure 4 As shown, the first end 11 is provided with a first mounting portion 32 and a second mounting portion 33. Preferably, the first mounting portion 32 and the second mounting portion 33 are disposed on the first protective cover 31. The first mounting portion 32 and the second mounting portion 33 are disposed adjacent to each other in the second direction, with the first mounting portion 32 located behind the second mounting portion 33 in the second direction. The first mounting portion 32 is lower than the second mounting portion 33 in the third direction, i.e., the top of the first mounting portion 32 is lower than the top of the second mounting portion 33. The first mounting portion 32 is hollow, with an opening at its lower end and a guide groove extending in the third direction on its sidewall.

[0054] like Figure 1 、 Figure 3 and Figure 4As shown, the second mounting portion 33 is groove-shaped and recessed in the third direction. The upper end of the second mounting portion 33 is open, and the right end of the second mounting portion 33 also has an opening, that is, the second mounting portion 33 is roughly a semi-enclosed structure. The second mounting portion 33 includes a limiting portion for limiting the position of other components (which may be part of the identification assembly). The limiting portion includes a first limiting portion 331 and a second limiting portion 332. In the first direction, the first limiting portion 331 is closer to the end surface of the first end 11 than the second limiting portion 332, that is, the first limiting portion 331 is located to the left of the second limiting portion 332. The first stopper 331 is located within the second mounting portion 33, specifically on the inner wall of the second mounting portion 33 in the second direction. The first stopper 331 is a guide rail structure, formed by two ridges extending in the first direction and spaced apart from each other in the third direction. The first stopper 331 extends in the first direction, further extending from right to left in the first direction. Its starting end (i.e., the right end) forms a guide opening 3311. The width of the guide opening 3311 in the third direction is preferably greater than that of the rest of the first stopper 331. The guide opening 3311 is provided with a guiding slope extending in both the third and first directions, gradually decreasing in width from right to left in the third direction, forming a bell-shaped shape. This facilitates guiding other components (such as part of the identification assembly) into the first stopper 331. The first stopper 331 can limit the position of the components in the third direction. The guide opening 3311 of the first stopper 331 is located approximately in the middle of the second mounting portion 33 in the first direction. The second limiting portion 332 is a groove-shaped recessed in the third direction. It limits the position of the component in the first direction. It is located on the sidewall of the second mounting portion 33 in the second direction and is formed by a downward recessed top portion of the sidewall. A first limiting portion 331 and a second limiting portion 332 form a set of mounting components. In this embodiment, two sets of mounting components are preferably provided, located symmetrically at either end of the second mounting portion 33 in the second direction. In other embodiments, the structure of the second mounting portion 33 can be customized based on actual needs.

[0055] like Figure 5 As shown, the second mounting portion 33 further includes a top portion 333 . The top portion 333 is a plane. The top portion 333 is the highest surface of the second mounting portion 33 . The top portion 333 is located above the first limiting portion 331 .

[0056] like Figure 1 、 Figure 3-Figure 5As shown, the identification assembly is detachably mounted on the second mounting portion 33. In this embodiment, the second mounting portion 33 can be considered a bracket for mounting the identification assembly. The identification assembly preferably includes a storage medium 34, an energy supply member 351, and a conductive member 352. In other embodiments, the identification assembly may only include the storage medium 34. The storage medium 34 stores information about the developer cartridge 1. When the developer cartridge 1 is installed in the image forming device, the storage medium 34 transmits the information about the developer cartridge 1 to the image forming device, allowing the image forming device to recognize the developer cartridge 1 and ensure that the developer cartridge 1 can function properly within the image forming device.

[0057] like Figure 1 、 Figure 3-Figure 5 As shown, the storage medium 34 includes a main body 341, a first limited portion 342, a second limited portion 343, and an electrical contact surface 344. The main body 341 is a generally rectangular substrate. The length direction of the main body 341 extends along the first direction, the width direction extends along the second direction, and the height (thickness) direction extends along the third direction. In other embodiments, the length direction of the main body 341 may extend along the second direction and the width direction extends along the first direction. The main body 341 is used to store information of the developing cartridge 1. The electrical contact surface 344 is electrically connected to the main body 341, which may be a direct electrical connection or an electrical connection transmitted through an intermediate component. In this embodiment, the electrical contact surface 344 is preferably provided on the upper end surface of the main body 341. The electrical contact surface 344 directly contacts the electrical contact pins in the image forming device to transmit the information in the main body 341 to the image forming device. In this embodiment, the electrical contact surface 344 is preferably provided in three, and the three electrical contact surfaces 344 are arranged along the first direction, and the orientation (i.e., normal direction) of the electrical contact surfaces 344 is parallel to the third direction. The storage medium 34 may be mounted on the second mounting portion 33 along a first direction, that is, the normal direction of the electrical contact surface 344 intersects with the mounting direction of the storage medium 34 . The first limited portion 342 extends in the first direction, and the first limited portion 342 protrudes in the second direction relative to the main body 341 and is recessed in the third direction, that is, the first limited portion 342 is a rib structure located at the end of the main body 341 in the second direction, and there is a height difference between the first limited portion 342 and the main body 341 in the third direction. The height of the first limited portion 342 in the third direction is less than the height of the main body 341 in the third direction, and further, the height (thickness) of the first limited portion 342 in the third direction is half of the height (thickness) of the main body 341 in the third direction. In this embodiment, the height of the first limited portion 342 in the third direction is preferably 0.8 mm, and the height of the main body 341 in the third direction is 1.6 mm. Considering the errors that may occur in actual production, the height of the first limited portion 342 in the third direction is 0.5-1.1 mm, and the height of the main body 341 in the third direction is 1.3-1.9 mm, which can be set according to actual conditions.

[0058] The second restricted portion 343 protrudes beyond the first restricted portion 342 in the second direction, that is, the second restricted portion 343 is disposed on the end surface of the first restricted portion 342 in the second direction and extends / protrudes along the second direction away from the first restricted portion 342. The second restricted portion 343 is preferably a block-shaped member and is disposed near the right end of the first restricted portion 342 in the first direction. A first restricted portion 342 and a second restricted portion 343 constitute a set of mounted components. In this embodiment, two mounted components are preferably disposed symmetrically at the two ends of the main body 341 in the second direction. In other embodiments, the structure of the storage medium 34 can be configured according to actual needs.

[0059] The first restricted portion 342 of the storage medium 34 is gradually inserted into the first restricting portion 331 from right to left through the guide opening 3311. During the insertion process, the first restricted portion 342 is guided by the first restricting portion 331. The height of the first restricted portion 342 in the third direction matches the height of the first restricting portion 331 in the third direction, so that the first restricting portion 331 stably supports the storage medium 34. The first restricting portion 331 also restricts the storage medium 34 in the third direction, preventing the storage medium 34 from escaping from the second mounting portion 33 in the third direction. When the first restricted portion 342 is completely or mostly located on the first restricting portion 331, the second restricted portion 343 is engaged within the second restricting portion 332. The second restricting portion 332 restricts the storage medium 34 in the first direction, preventing the storage medium 34 from escaping from the second mounting portion 33 in the first direction. It can be seen that both the first restricting portion 331 and the second restricting portion 332 have a restricting effect on the storage medium 33 in the second direction. Therefore, the storage medium 34 can be stably installed on the second mounting portion 33 and will not be detached or produce non-preset shaking due to external force. Non-preset shaking can be understood as shaking that is not conducive to the storage medium 34 transmitting information to the image forming device.

[0060] In some embodiments, the storage medium 34 is installed on the second mounting portion 33 along the second direction, that is, the extension direction of the first limiting portion 331 (guide rail structure) is the second direction, and the first limited portion 342 (rib structure) is located at the end of the main body 341 in the first direction and extends along the second direction.

[0061] In other embodiments, a limited groove may be provided on the storage medium 34 , and a limited protrusion may be provided on the second mounting portion 33 .

[0062] The energy supply member 351 is preferably a battery, but can also be another energy-providing medium. It is used to provide electrical energy to the storage medium 34, enabling the storage medium 34 to stably transmit information to the image forming device. The conductive member 352 is preferably a steel sheet. It connects the energy supply member 351 to the storage medium 34, ensuring stable transmission of electrical energy from the energy supply member 351 to the storage medium 34. Furthermore, the conductive member 352 prevents the energy supply member 351 from wobbling within the second mounting portion 33. In other embodiments, the conductive member may not be provided, and the energy supply member 351 may directly transmit electrical energy to the storage medium 34.

[0063] like Figure 3 As shown, in this embodiment, the lifting assembly is movably supported by the first mounting portion 32 and includes an abutment member 361 and an elastic member 362. The abutment member 361 is a slider-like member that is slidably disposed within the first mounting portion 32 and can move in a third direction relative to the first mounting portion 32. The abutment member 361 is provided with an elastic clip that engages with a guide groove on the side wall of the first mounting portion 32, thereby enabling movement in the third direction without falling out of the first mounting portion 32. The elastic member 362 is preferably a compression spring, but can also be other elastic media. The elastic member 362 can be compressed and stretched in the third direction. The elastic member 362 is located within the first mounting portion 32, with one end abutting the first mounting portion 32 and the other end abutting the top of the abutment member 361. The elastic member 362 is constructed so that when no external force is applied, the abutment member 361 is in a state where the lower end extends out of the lower opening of the first mounting portion 32. During the installation of the developer cartridge 1 into the image forming device, the abutment member 361 abuts against a component within the image forming device (external component) and moves upward in the third direction relative to the first mounting portion 32. The elastic member 362 is compressed and accumulates elastic force. The elastic member 362 transmits the upward elastic force to the first end 11, causing the first end 11 to move upward as a whole. When the developer cartridge 1 is fully installed in the image forming device, the electrical contact surface 344 of the storage medium 34 can stably contact the electrical contact pin. In one embodiment, the abutment member is an elastic member that contacts the external component.

[0064] It is known that if Figure 5 As shown, in this embodiment, the top 333 of the second mounting portion 33 protrudes from the electrical contact surface 344 of the storage medium 34 in the third direction by no more than 2 mm, and further no more than 1 mm. In this embodiment, the top 333 and the electrical contact surface 344 are preferably flush. If the top 333 of the second mounting portion 33 protrudes too far from the electrical contact surface 344 in the third direction, the top 333 may abut against components within the image forming device, thereby limiting the upward movement of the first end 11 in the third direction under the action of the elastic member 362. This may prevent the electrical contact surface 344 from making stable contact with the electrical contact pins, resulting in the inability to transmit information from the storage medium 34 to the image forming device.

[0065] like Figure 3 and Figure 6 As shown, the developing box 1 further includes a first pushing member 111 located at the first end 11 and a second pushing member 122 located at the second end 12, both of which are used to receive the pushing force applied by the drum assembly so that the developing roller 131 is in close contact with the photosensitive drum.

[0066] like Figure 6 As shown, a second protective cover 121 is detachably fixedly mounted on the second end 12. The second protective cover 121 protects the second end 12 and, in this embodiment, also provides a sealing function. An electrode 123 is also provided on the second end 12. The electrode 123 is used to receive the voltage output by the image forming device. The electrode 123 is electrically connected to the developing roller 131 and the powder feed roller to transmit the voltage to the developing roller 131 and the powder feed roller, thereby charging the developing roller 131 and the powder feed roller to absorb the developer.

[0067] Example 2:

[0068] Unless otherwise specified, the structure of the developing box in this embodiment is the same as that in the first embodiment. The main difference in this embodiment is that the structures of the limiting portion and the storage medium 34 are different.

[0069] like Figure 7 and Figure 8 As shown, the limiting portion includes a second limiting portion 334 and a first limiting portion 335. The second limiting portion 334 and the first limiting portion 335 are located at the corners around the second mounting portion 33 and are respectively located at the two ends of the second mounting portion 33 in the first direction. Further, the second limiting portion 334 is located at the right end of the second mounting portion 33 in the first direction, and the first limiting portion 335 is located at the left end. The second limiting portion 334 is an elastic buckle. In this embodiment, it is preferably a cantilevered elastic buckle (the cantilever extends upward, and the upper end of the cantilever is a buckle), which has a certain elastic force. A contact slope 3341 (provided on the buckle) is provided on the second limiting portion 334. The contact slope 3341 is inclined relative to the first direction and the third direction. The contact slope 3341 extends to the left in the first direction and extends downward in the third direction. When the contact slope 3341 is subjected to force, the second limiting portion 334 is deformed (the upper end swings in the direction away from the first end 11). The second limiting portion 334 has a first opening facing left in the first direction (i.e., toward the first end 11), and the first opening is located below the contact slope 3341.

[0070] In this embodiment, two first limiting portions 335 are preferably provided and arranged at intervals in the second direction, that is, one first limiting portion 335 is located at the left front corner of the second mounting portion 33, and the other first limiting portion 335 is located at the left rear corner of the second mounting portion 33. The first limiting portion 335 is a guide rail-shaped slot. The first limiting portion 335 is preferably provided with a guide slope 3351, which is inclined relative to the first direction and the third direction. The guide slope 3351 extends to the right in the first direction and extends downward in the third direction. The first limiting portion 335 has a trumpet-shaped guide opening facing right in the first direction (that is, back to the first end 11), and the guide opening is located below the guide slope 3351.

[0071] like Figure 7 and Figure 8 As shown, the storage medium 34 is provided with a main body 341, an electrical contact surface 344, a second limited portion 345 and a first limited portion 346. The second limited portion 345 and the first limited portion 346 are convex block structures that are recessed in the third direction relative to the main body 341. The second limited portion 345 and the first limited portion 346 are located at the corners of the main body 341 and are respectively located at the two ends of the main body 341 in the first direction. Further, the second limited portion 345 is located at one end of the main body 341 away from the first end 11 in the first direction, and the first limited portion 346 is located at the other end. The first limited portion 346 is preferably set to two and arranged in an array in the second direction.

[0072] like Figure 7 and Figure 8 As shown, when the storage medium 34 is installed on the second mounting portion 33, the second limiting portion 346 is first guided by the guide slope 3351 and installed on the first limiting portion 335 through the guide opening, and then the end of the storage medium 34 away from the first end 11 in the first direction is pressed downward, so that the second limited portion 345 abuts against the abutting slope 3341, so that the second limiting portion 334 is deformed in the direction away from the first end 11 and avoids it. After the second limited portion 345 passes over the abutting slope 3341, it is located in the first opening, and the second limiting portion 334 elastically recovers and clamps the second limited portion 345 to keep it in the first opening. The second limiting portion 334 and the first limiting portion 335 limit the storage medium 34 in the first direction, the second direction and the third direction, so that the storage medium 34 is stably installed on the second mounting portion 33.

[0073] Example 3:

[0074] Unless otherwise specified, the structure of the developing box in this embodiment is the same as that in the first embodiment. The main difference in this embodiment is that the structure of the second limiting portion on the second mounting portion 33 is different.

[0075] like Figure 9and Figure 10 As shown, in this embodiment, the limiting portion includes a first limiting portion 331 and a second limiting portion 336. The second limiting portion 336 is preferably an elastic buckle. In this embodiment, it is preferably a cantilevered elastic buckle. The cantilever of the elastic buckle extends to the right, and the right end of the cantilever (the end away from the first end 11) is a buckle. The second limiting portion 336 is provided with an abutting inclined surface 3361 (provided on the buckle). The abutting inclined surface 3361 is inclined relative to the first direction and the second direction. The abutting inclined surface 3361 extends leftward along the first direction and extends rearward along the second direction. The second limiting portion 336 is provided on a side wall of the second mounting portion 33 in the second direction.

[0076] like Figure 9 As shown, the second restricted portion 347 is a convex block structure. The second restricted portion 347 is provided at the end of the main body 341 in the second direction and protrudes in a direction away from the main body 341. In the third direction, the second restricted portion 347 is located above the first restricted portion 342 (rib structure). In the second direction, the second restricted portion 347 does not protrude beyond the first restricted portion 342. Furthermore, a second abutting inclined surface 3471 is provided at the left end of the second restricted portion 347. The second abutting inclined surface 3471 is inclined relative to the first and second directions. Specifically, the second abutting inclined surface 3471 extends leftward along the first direction and backward along the second direction. The abutment between the second abutting inclined surface 3471 and the abutting inclined surface 3361 makes it easier to push the second restricted portion 336 to deform.

[0077] like Figure 9 and Figure 10 As shown, during the installation of the storage medium 34 on the second mounting portion 33, the first restricted portion 342 is first installed on the first limiting portion 331 along the first direction. The second abutting inclined surface 3471 of the second restricted portion 347 abuts the abutting inclined surface 3361, causing the second limiting portion 336 to elastically deform forward and avoid the abutment. After the second restricted portion 347 passes over the abutting inclined surface 3361, the second limiting portion 336 elastically recovers and engages with the right end of the second restricted portion 347, thereby limiting the second restricted portion 347. In this embodiment, the first limiting portion 331 limits the storage medium 34 in the second and third directions, while the second limiting portion 336 limits the storage medium 34 in the first direction, thereby ensuring that the storage medium 34 is stably installed on the second mounting portion 33.

[0078] It is known that the structures of the second mounting portion 33 and the storage medium 34 can be combined and arranged according to the above embodiments.

[0079] The above descriptions are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, and these all fall within the scope of protection of the present invention.

Claims

1. A developing cartridge, comprising: The box body has a first end and a second end opposite to each other in a first direction, a third end and a fourth end opposite to each other in a second direction, and a fifth end and a sixth end opposite to each other in a third direction, wherein the first direction, the second direction, and the third direction intersect each other; a developing roller, located at the third end, wherein the rotation axis of the developing roller extends in a first direction; a driving portion, for receiving power to drive the developing roller to rotate, and located at the first end; A storage medium for storing information of the developing cartridge, wherein the storage medium comprises a main body and a first limited portion provided on the main body; a bracket, the storage medium is mounted on the bracket, It is characterized in that, in the third direction, there is a height difference between the main body and the first limited portion.

2. The developing cartridge according to claim 1, wherein In the third direction, a height of the first limited portion is smaller than a height of the main body.

3. The developing cartridge according to claim 2, wherein: The height of the first limited portion in the third direction is 0.5-1.1 mm, and the height of the main body in the third direction is 1.3-1.9 mm.

4. The developing cartridge according to claim 1, wherein The first limited portion extends in a first direction and protrudes from the main body in a second direction, and the first limited portion is a rib structure; The bracket includes a first limiting portion, the first limiting portion extends in a first direction, the first limiting portion is a guide rail structure and has a guide opening, and the guide opening is located at the starting end of the extension of the first limiting portion; The first restricted portion can be inserted into the first restricting portion along a first direction through the guide opening.

5. The developing cartridge according to claim 4, wherein: In the third direction, the guide opening has a width greater than that of the remaining portion of the first limiting portion.

6. The developing cartridge according to claim 4, wherein: The bracket further includes a second limiting portion, the second limiting portion being further away from the end surface of the first end than the first limiting portion in the first direction; The storage medium further includes a second limited portion, and the second limited portion can be engaged with the second limiting portion to limit the storage medium in the first direction.

7. The developing cartridge according to claim 6, wherein: The second limiting portion is in the shape of a groove that is recessed in the third direction; The second limited portion is disposed on an end surface of the first limited portion in the second direction, and protrudes along the second direction toward a direction away from the first limited portion.

8. The developing cartridge according to claim 6, wherein: The second limiting portion is an elastic buckle, and the second limiting portion is provided with an abutting inclined surface. The second limited portion is a convex block structure. When the storage medium is inserted into the first limited portion, the second limited portion abuts against the abutting inclined surface, causing the second limited portion to elastically avoid. After the second limited portion passes over the abutting inclined surface, the second limited portion recovers its deformation and engages with the second limited portion.

9. The developing cartridge according to claim 6, wherein: The first limited portion and the second limited portion are located at corners around the main body.

10. The developing cartridge according to claim 1, wherein The storage medium is provided with an electrical contact surface on an upper end surface in the third direction, and a normal direction of the electrical contact surface intersects with an installation direction of the storage medium.

11. The developing cartridge according to claim 10, wherein: The bracket has a top, which is the highest surface of the bracket in the third direction; The top portion protrudes from the electrical contact surface in the third direction or is flush with the electrical contact surface.

12. The developing cartridge according to claim 4, wherein: The first limited portion is a rib structure extending in the second direction, and the first limiting portion is a guide rail structure extending in the second direction. The first limited portion can be inserted into the first limiting portion along the second direction.

13. The developing cartridge according to claim 1, wherein An abutment member is further included, the abutment member being in contact with an external component and causing the box body to move.

Images