Drum assembly

Abstract

The utility model discloses a drum assembly, which comprises a drum frame, side walls which are oppositely arranged in a first direction, a photosensitive drum is rotatably supported on the side walls, the axial direction of the photosensitive drum extends along the first direction, the photosensitive drum is positioned at the front end of the drum frame in a second direction, and the second direction is intersected with the first direction; and the identification assembly is arranged on one side wall of the drum frame, and the identification assembly can generate elastic deformation. According to the utility model, through arranging the identification assembly capable of generating elastic deformation, the support does not need to be installed through a support cover, the structure of the drum assembly is simplified, and the assembly of the identification assembly is simpler.

Description

Technical Field

[0001] The utility model relates to the technical field of image forming devices, in particular to a drum component. Background Art

[0002] The image forming apparatus is configured to form an image on a printing sheet such as paper. The image forming apparatus includes a main body, a developing cartridge and a drum assembly, the developing cartridge being attachable to the drum assembly and being mounted together in the main body of the image forming apparatus.

[0003] The upper guide rail of the side wall of the main body of the image forming device includes a protrusion and a recess, the recess is located on one side of the protrusion, an identification contact is provided in the recess, and the protrusion is lower than the identification contact in the up and down direction. The drum assembly includes a drum frame, an identification assembly and a bracket cover, the bracket cover is fixedly mounted on the side wall of the drum frame, the bracket cover is provided with a slide groove, and the identification assembly is movably mounted on the drum frame through the slide groove. When the drum assembly is loaded into the printer from the back to the front, the upper part of the identification assembly abuts against the protrusion of the printer, and after the upper part of the identification assembly passes over the protrusion, the bottom of the identification assembly abuts against the lower guide rail in the main body of the image forming device, so that the identification assembly slides upward through the slide groove, thereby realizing electrical connection between the identification assembly and the identification contact of the image forming device. However, the setting method of the bracket cover is complicated, and the way in which the identification assembly cooperates with the guide rail of the image forming device is complicated. Utility Model Content

[0004] According to one aspect of the utility model, there is provided a drum assembly, comprising:

[0005] A drum frame having side walls arranged opposite to each other in a first direction, a photosensitive drum being rotatably supported on the side walls, the axial direction of the photosensitive drum extending along the first direction, the photosensitive drum being located at a front end of the drum frame in a second direction, and the second direction intersecting with the first direction;

[0006] The identification component is arranged on a side wall of the drum frame, and the identification component can undergo elastic deformation.

[0007] In some embodiments, the identification component includes a bracket, an electrical contact surface and a storage medium, the electrical contact surface is electrically connected to the storage medium, the bracket carries the electrical contact surface, the bracket is fixedly disposed on the side wall of the drum frame, and the bracket can undergo elastic deformation.

[0008] In some embodiments, the bracket includes a cantilever extending along a third direction, and the cantilever can be elastically deformed along the third direction, and the third direction intersects the first direction and the second direction.

[0009] In some embodiments, the first end of the cantilever is connected to a bearing portion for bearing the electrical contact surface, the second end of the cantilever is fixedly connected to a side wall of the drum frame, and the first end is located above the second end in the third direction.

[0010] In some embodiments, the first end of the cantilever is located in front of the second end in the second direction, and the cantilever can be elastically deformed along the second direction; or,

[0011] The first end of the cantilever is located at the rear side of the second end in the second direction, and the cantilever can be elastically deformed along the second direction; or,

[0012] In a first direction, the first end of the cantilever is farther away from the side wall of the drum frame than the second end, and the cantilever can be elastically deformed along the first direction; or,

[0013] At least one recessed portion is provided on the side surface of the cantilever, and the cantilever can be elastically deformed along the third direction from the recessed portion.

[0014] In some embodiments, the cantilever is in a bent shape.

[0015] In some embodiments, the cantilever is an "S" shaped structure.

[0016] In some embodiments, the bracket further includes a limiting portion, and the limiting portion is disposed on the rear side of the bearing portion in the second direction.

[0017] In some embodiments, the identification component includes a storage medium, an electrical contact surface, a bracket and an elastic member; the electrical contact surface is electrically connected to the storage medium, the electrical contact surface is carried on the bracket, one end of the elastic member is connected to the bracket, and the other end is connected to the side wall of the drum frame.

[0018] In some embodiments, a slide groove is provided on the side wall of the drum frame, the elastic member is installed in the slide groove, and the slide groove extends along the third direction.

[0019] In some embodiments, the slide groove is inclined at 30° to 45° relative to the third direction.

[0020] The beneficial effects of the utility model are as follows: the utility model provides an identification component that can undergo elastic deformation, and the bracket does not need to be installed through a bracket cover, thereby simplifying the structure of the drum component and making the assembly of the identification component simpler. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic diagram of the internal structure of an image forming device;

[0022] Figure 2It is a schematic diagram of the overall structure of the drum assembly of Example 1;

[0023] Figure 3 It is a partial structural schematic diagram of the drum assembly of the first embodiment at one angle;

[0024] Figure 4 It is a structural schematic diagram of a bracket of a drum assembly of Embodiment 1;

[0025] Figure 5 It is a schematic diagram of the partial structure of the drum assembly of Embodiment 1 from another angle;

[0026] Figure 6 It is a schematic diagram of the overall structure of the drum assembly of the second embodiment;

[0027] Figure 7 It is a partial structural schematic diagram of the drum assembly of the second embodiment;

[0028] Figure 8 It is a schematic diagram of the overall structure of the drum assembly of Example 3;

[0029] Fig. 9 It is a partial structural schematic diagram of the drum assembly of the third embodiment;

[0030] Fig.10 It is a partial structural schematic diagram of a drum assembly of Embodiment 4 at one angle;

[0031] Fig.11 It is a schematic diagram of the partial structure of the drum assembly of the fourth embodiment from another angle;

[0032] Fig.12 It is a structural schematic diagram of a bracket of a drum assembly of Embodiment 4;

[0033] Fig.13 It is a partial structural schematic diagram of the drum assembly of the fifth embodiment;

[0034] Fig.14 It is a partial exploded schematic diagram of the drum assembly of the fifth embodiment;

[0035] Fig.15 It is a structural schematic diagram of a bracket of a drum assembly of Embodiment 5;

[0036] Fig.16 It is a partial structural schematic diagram of the drum assembly of Example 6;

[0037] Fig.17 It is a partial exploded structural schematic diagram of the drum assembly of Example 6;

[0038] Fig.18 It is a partial structural schematic diagram of the drum assembly of the seventh embodiment;

[0039] Fig.19It is a schematic diagram of the partial exploded structure of the drum assembly of the seventh embodiment. DETAILED DESCRIPTION

[0040] The utility model is further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0041] It should be noted that the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0042] In the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection", "fixation" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0044] In the above description, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means 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 utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0045] Embodiment 1

[0046] For ease of description, Figure 2 Based on the state shown, the drum assembly has a first direction, a second direction and a third direction, and the first direction, the second direction and the third direction intersect with each other. This embodiment is described with the left-right direction as the first direction, the front-back direction as the second direction, and the up-down direction as the third direction, and does not constitute a limitation on the first direction, the second direction and the third direction.

[0047] The image forming apparatus 100 forms an image on a recording material using an electrophotographic imaging method, and includes a copier, a fax machine, a printer (laser beam printer, LED printer, etc.), and a corresponding multifunction printer, etc. The image forming apparatus 100 includes a main frame, a developing cartridge (not shown), and a drum assembly 200, and the developing cartridge can be attached to the drum assembly 200 to form a process cartridge and then installed together in the main frame of the image forming apparatus 100.

[0048] like Figure 1 As shown, a mounting cavity 110 for accommodating a process cartridge is provided in the main frame of the image forming apparatus 100, and the process cartridge (including a developing cartridge and a drum assembly 200) is installed in the mounting cavity 110 from back to front along the second direction. The upper guide rail of the side wall of the mounting cavity 110 includes a protrusion 111 and a recess 112, and the recess 112 is located on one side (specifically, the front side) of the protrusion 111 in the second direction, and an identification contact 113 is provided in the recess 112, and in the third direction (up and down direction), the protrusion 111 is lower than the identification contact 113.

[0049] like Figure 2As shown, the drum assembly 200 includes a drum frame 210, a photosensitive drum 220 and an identification assembly. The drum frame 210 is used to support the photosensitive drum 220 and carry the developing box. The drum frame 210 includes a first side wall 211 and a second side wall 212 arranged opposite to each other in a first direction, and a third side wall 213 arranged between the first side wall 211 and the second side wall 212, wherein the end where the first side wall 211 is located is also the left end of the drum assembly 200, and the end where the second side wall 212 is located is also the right end of the drum assembly 200. The photosensitive drum 220 is rotatably supported on the first side wall 211 and the second side wall 212, and the axial direction of the photosensitive drum 220 extends along the first direction. The photosensitive drum 220 is located at one end of the drum frame 210 in the second direction, and the end where the photosensitive drum 220 is provided is also the front end of the drum assembly 200.

[0050] like Figure 2 and Figure 3 As shown, the identification component is arranged on a side wall of the drum frame 210, specifically, on the first side wall 211. The identification component includes a storage medium 230, an electrical contact surface 231 and a bracket 240. The storage medium 230 stores information about the developing box and / or the drum assembly 200. The electrical contact surface 231 is electrically connected to the storage medium 230. The electrical contact surface 231 is used to electrically contact with the identification contact 113 of the image forming device 100 to establish communication, so that the image forming device 100 can read the information in the storage medium 230. The storage medium 230 can be, for example, a chip. Preferably, the electrical contact surface 231 can be arranged together with the storage medium 230, for example, the electrical contact surface 231 is arranged on the upper surface of the storage medium 230. Optionally, the electrical contact surface 231 can be arranged separately from the storage medium 230, and can also include a conductive connector, the electrical contact surface 231 is arranged on the conductive connector, and the conductive connector is electrically connected to the storage medium 230, that is, the storage medium 230 is electrically connected to the identification contact 113 of the image forming device through the conductive connector. The conductive connecting member may be a conductive wire, a conductive foil or the like.

[0051] like Figures 2 to 4As shown, the bracket 240 is used to carry the storage medium 230. The bracket 240 can be deformed along the third direction. When the bracket 240 abuts against the protrusion 111, it is deformed and moves downward to avoid the protrusion 111. After the bracket 240 passes over the protrusion 111, it is reset upward so that the storage medium 230 can be in electrical contact with the identification contact 113. Specifically, the bracket 240 includes a mounting portion 241 and a cantilever 242 disposed on the mounting portion 241. The bracket 240 is fixedly disposed on the first side wall 211 of the drum frame 210, and can be fixed by a bolt 250. The mounting portion 241 of the bracket 240 is generally a rectangular block structure (its specific shape is not limited). The mounting portion 241 is provided with a through hole 2411 penetrating along the first direction, and the first side wall 211 is also provided with a screw hole. The bolt 250 passes through the through hole 2411 and the screw hole in sequence to fix the bracket 240 on the outer side (left side) of the first side wall 211. Optionally, the bracket 240 may be glued or snap-fitted to the first side wall 211 , or the bracket 240 may be an integrally formed structure.

[0052] like Figures 2 to 5As shown, the cantilever 242 is arranged on the upper end surface of the mounting portion 241, the cantilever 242 is a strip-shaped member, the cantilever 242 itself can undergo elastic deformation when subjected to external force, the cantilever 242 extends upward along the third direction, and the two ends of the cantilever 242 are respectively a first end and a second end, wherein the first end is connected to a bearing portion 243 for bearing the electrical contact surface 231, and the second end is connected to the mounting portion 241 of the bracket 240 (that is, the cantilever 242 is indirectly connected to the first side wall 211 through the mounting portion 241), and the first end is located on the upper side of the second end in the third direction (that is, the first end is also the upper end of the cantilever 242, and the second end is also the lower end of the cantilever 242); optionally, the mounting portion 241 may not be provided, and the second end of the cantilever 242 may be directly fixedly connected to the first side wall 211; or the cantilever 242 and the first side wall 211 are an integrally formed structure. The bearing part 243 is a block-shaped component. The first end of the cantilever 242 is connected to the bottom of the bearing part 243. The top of the bearing part 243 is provided with a downwardly recessed mounting position 2431 (groove structure). In this embodiment, the electrical contact surface 231 is arranged on the upper surface of the storage medium 230, that is, the storage medium 230 can be fixed in the mounting position 2431 by means of pasting, snapping, welding, etc. When the storage medium 230 is installed in the mounting position 2431, the electrical contact surface 231 faces upward. The bearing part 243 can be an integrally formed structure with the cantilever 242, or a separate structure. Optionally, when the electrical contact surface 231 and the storage medium 230 are separately arranged, only the electrical contact surface 231 is fixed in the mounting position 2431 by means of pasting, snapping, welding, etc. The storage medium 230 can be fixedly installed at any position (for example, the first side wall 211) on the drum frame 210, or can be installed on the mounting portion 241 of the bracket 240, and then electrically connected to the electrical contact surface 231 through a conductive connector. The cantilever 242 is bent from the second end to the first end, that is, the cantilever 242 is in a bent shape, so that the cantilever 242 has good elasticity.

[0053] like Figures 2 to 5 As shown, in this embodiment, the cantilever 242 extends obliquely upward. In the first direction, the first end of the cantilever 242 is farther away from the side wall of the drum frame 210 than the second end, that is, the first end of the cantilever 242 is located on the left side of the second end. The cantilever 242 can also undergo elastic deformation along the first direction to facilitate the bracket 240 to pass over the protrusion.

[0054] like Figures 1 to 5As shown, during the process of the drum assembly 200 being installed from back to front to the image forming device 100 along the second direction, the bearing portion 243 abuts against the protrusion 111, and the force of the protrusion 111 on the bearing portion 243 causes the cantilever 242 to elastically deform to the left so that the bearing portion 243 moves downward to avoid the protrusion 111. After the bearing portion 243 passes over the protrusion 111 forward, the elastic deformation of the cantilever 242 is restored so that the bearing portion 243 is reset upward, and the storage medium 230 in the bearing portion 243 can be in electrical contact with the identification contact 113.

[0055] Further, such as Figures 2 to 4 As shown, the bracket 240 is provided with a guiding slope, which abuts against the protrusion 111 during the process of installing the drum assembly 200 to the image forming device 100, thereby guiding the identification assembly to move in the direction of avoiding the protrusion 111. Specifically, the guiding slope includes a first guiding slope 2432 and a second guiding slope 2433. The first guiding slope 2432 acts on the protrusion 111 during the installation of the drum assembly 200, and the second guiding slope 2433 acts on the protrusion 111 during the disassembly of the drum assembly 200. The first guiding slope 2432 and the second guiding slope 2433 are respectively arranged on both sides of the bearing portion 243 in the second direction, the first guiding slope 2432 is arranged on the front side surface of the bearing portion 243, and the second guiding slope 2433 is arranged on the rear side surface of the bearing portion 243. In the third direction, the front end of the first guiding slope 2432 is lower than the rear end thereof, and the front end of the second guiding slope 2433 is higher than the rear end thereof, that is, the projection shape of the bearing portion 243 observed along the first direction is approximately a trapezoid. During the installation of the drum assembly 200, the drum assembly 200 is forced to move forward, the first guiding inclined surface 2432 abuts against the protrusion 111 and guides the cantilever 242 to elastically deform leftward and downward and drives the bearing portion 243 to move to avoid the protrusion 111, so that the bearing portion 243 can smoothly pass over the protrusion 111. During the disassembly of the drum assembly 200, the drum assembly 200 is forced to move backward, the second guiding inclined surface 2433 abuts against the protrusion 111 and guides the cantilever 242 to elastically deform leftward and downward and drives the bearing portion 243 to move to avoid the protrusion 111, so that the bearing portion 243 can pass over the protrusion 111 and then take out the drum assembly 200.

[0056] The drum assembly 200 of this embodiment is provided with a deformable bracket 240, which does not need to be installed through a bracket cover, thereby simplifying the structure of the drum assembly 200, and the matching mode between the bracket 240 and the image forming device 100 is also simpler, and the assembly is smoother.

[0057] Embodiment 2

[0058] This embodiment provides another drum assembly 200 , which is different from the first embodiment in that the structure of the bracket 240 is different.

[0059] like Figure 6 and Figure 7 As shown, in this embodiment, the bracket 240 includes a mounting portion 241, a cantilever 242a and a bearing portion 243. The structures and connection methods of the mounting portion 241, the cantilever 242a and the bearing portion 243 are the same as those in embodiment 1, except that the direction in which the cantilever 242a undergoes elastic deformation is different.

[0060] like Figure 7 As shown, in this embodiment, the cantilever 242a extends obliquely upward, and the first end (upper end) of the cantilever 242a is located in front of the second end (lower end) in the second direction, so that the cantilever 242a can also undergo elastic deformation along the second direction to avoid the protrusion 111 and reset the bearing portion 243.

[0061] When the drum assembly 200 is installed to the image forming device 100 from back to front along the second direction, the bearing portion 243 abuts against the protrusion 111 (the first guide slope 2432 abuts against the protrusion 111). The force of the protrusion 111 on the bearing portion 243 causes the cantilever 242a to produce elastic deformation backwards so that the bearing portion 243 moves downward to avoid the protrusion 111. After the bearing portion 243 passes over the protrusion 111 forward, the elastic deformation of the cantilever 242a is restored so that the bearing portion 243 is reset upward, and the storage medium 230 in the bearing portion 243 can be in electrical contact with the identification contact 113.

[0062] The other structures of the drum assembly 200 of this embodiment are the same as those of the first embodiment and will not be described again.

[0063] In some embodiments, the structures and connection methods of the mounting portion 241, the cantilever 242a, and the bearing portion 243 are the same as those in Example 1, and the extension direction of the cantilever can be opposite to that of the present embodiment, that is, the first end (upper end) of the cantilever 242a is located on the rear side of the second end (lower end) in the second direction, which can also achieve the same effect.

[0064] Embodiment 3

[0065] This embodiment provides another drum assembly 200 , which is different from the first and second embodiments in that the structure of the bracket 240 is different.

[0066] like Figure 8 and Fig. 9 As shown, in this embodiment, the bracket 240 includes a mounting portion 241, a cantilever 242b and a bearing portion 243. The structure and connection method of the mounting portion 241 and the bearing portion 243 are the same as those in embodiment 1, except that the structure of the cantilever 242b and the direction of elastic deformation are different.

[0067] like Figure 8 and Fig. 9As shown, in this embodiment, two cantilevers 242b are provided, the two cantilevers 242b are plate-like components, the two cantilevers 242b are arranged opposite to each other in the second direction, the two cantilevers 242b extend vertically upward along the third direction, the bearing portion 243 is arranged at the first ends of the two cantilevers 242b, and at least one recessed portion 2421 is provided on the sides of the two cantilevers 242b. Preferably, each cantilever 242b is provided with a recessed portion 2421 and is arranged on the inner side surfaces opposite to each other of the two cantilevers 242b.

[0068] When the drum assembly 200 is installed to the image forming device 100 from back to front along the second direction, the bearing portion 243 abuts against the protrusion 111 (the first guide slope 2432 abuts against the protrusion 111). The force of the protrusion 111 on the bearing portion 243 causes the cantilever 242b to elastically deform from the recessed portion 2421 along the third direction to allow the bearing portion 243 to move downward to avoid the protrusion 111. After the bearing portion 243 passes over the protrusion 111 forward, the elastic deformation of the cantilever 242b is restored to reset the bearing portion 243 upward, and the storage medium 230 in the bearing portion 243 can be in electrical contact with the identification contact 113.

[0069] The other structures of the drum assembly 200 of this embodiment are the same as those of the first embodiment and will not be described again.

[0070] Embodiment 4

[0071] This embodiment provides a drum assembly 200 , which is different from the first to third embodiments in that the structure of the bracket 240 is different.

[0072] like Figures 10 to 12 As shown, in this embodiment, the bracket 240 includes a mounting portion 241, a cantilever 242c, a bearing portion 243 and a limiting portion 244. The structures and connection methods of the mounting portion 241 and the bearing portion 243 are the same as those in the first embodiment, with the difference that the cantilever 242c can undergo elastic deformation along the third direction. Specifically, the cantilever 242c is in a bent shape. Preferably, the cantilever 242c includes two bent portions 2422, so that the cantilever 242c is roughly in an "S"-shaped structure, that is, the cantilever 242c is in a bent and upwardly extending state.

[0073] like Figures 10 to 12 As shown, during the process of the drum assembly 200 being installed from back to front to the image forming device 100 along the second direction, the bearing portion 243 abuts against the protrusion 111 (the first guiding slope 2432 abuts against the protrusion 111), and the force of the protrusion 111 on the bearing portion 243 causes the cantilever 242c to undergo elastic deformation along the third direction (up and down direction) to allow the bearing portion 243 to move downward to avoid the protrusion 111. After the bearing portion 243 passes over the protrusion 111 forward, the elastic deformation of the cantilever 242c is restored to reset the bearing portion 243 upward, and the storage medium 230 in the bearing portion 243 can make electrical contact with the identification contact 113.

[0074] Optionally, the cantilever 242c may include other different numbers of bent portions 2422. For example, one bent portion 2422 may be provided, and the cantilever 242c may be in a "U"-shaped structure; for example, three, four, or more bent portions 2422 may be provided, and the cantilever 242c may be in a wavy structure or a spiral structure, as long as it can be deformed in the third direction (up and down direction) when subjected to the force of the protrusion 111. The cantilever 242c is in a bent shape, so that the cantilever has good elasticity.

[0075] Further, such as Figures 10 to 12 As shown, the limiting portion 244 is arranged on the mounting portion 241 of the bracket 240, and the limiting portion 244 is a plate-shaped / sheet-shaped / block-shaped component extending upward from the top surface of the mounting portion 241. The limiting portion 244 is arranged on the rear side of the bearing portion 243 in the second direction, that is, along the second direction, the bearing portion 243 and the limiting portion 244 have an overlapping portion, and there may be a certain distance between the limiting portion 244 and the bearing portion 243. The limiting portion 244 is used to limit the range of the bearing portion 243 moving backward along the second direction when the bearing portion 243 abuts against the protrusion 111, so as to prevent the bearing portion 243 from being pushed by the protrusion 111 to move backward too much. Optionally, the limiting portion 244 may also fit with the bearing portion 243, even if the bearing portion 243 cannot move backward.

[0076] The other structures of the drum assembly 200 of this embodiment are the same as those of the first embodiment and will not be described again.

[0077] Embodiment 5

[0078] This embodiment provides another drum assembly 200, which is different from the first to fourth embodiments in that the identification assembly structure is different.

[0079] like Fig.13 As shown, in this embodiment, the identification component includes a storage medium 230, a bracket 240a and an elastic member 260. In this embodiment, the structure of the storage medium 230 is the same as that of the first embodiment. The bracket 240a includes a bearing portion 243 and a sliding portion 245 as in the first embodiment. The bearing portion 243 is used to bear the storage medium 230. The sliding portion 245 is connected to the elastic member 260, so that the bracket 240a is movably mounted on the side wall of the drum frame 210.

[0080] like Figures 13 to 15As shown, specifically, a slide groove 211a is provided on the first side wall 211 of the drum frame 210, and the slide groove 211a extends along the third direction (that is, the slide groove 211a is parallel to the up and down direction), and a first connecting portion 2111 is provided at the bottom end of the slide groove 211a, and the elastic member 260 is installed in the slide groove 211a, and one end of the elastic member 260 is connected to the first connecting portion 2111, the first connecting portion 2111 is a convex column, and the elastic member 260 is a compression spring, that is, one end of the spring is sleeved on the convex column.

[0081] like Figures 13 to 15 As shown, the sliding portion 245 is arranged on the right side of the bearing portion 243, and the sliding portion 245 is a slider adapted to the slide groove 211a. The slider cooperates with the slide groove 211a to enable the bracket 240a to move along the slide groove 211a. A second connecting portion 2451 (convex column) is provided at the bottom of the sliding portion 245, and the other end of the elastic member 260 is connected to the second connecting portion 2451. The elastic member 260 is constructed so that the bracket 240a is at the top position of the slide groove 211a when it is not subjected to other external forces.

[0082] When the drum assembly 200 is installed from back to front to the image forming device 100 along the second direction, the bracket 240a abuts against the protrusion 111. The force of the protrusion 111 on the bracket 240a causes the bracket 240a to compress the elastic member 260 and then move downward along the slide groove 211a to avoid the protrusion 111. After the bearing portion 243 passes over the protrusion 111 forward, the elastic member 260 is deformed and restored to drive the bracket 240a to reset upward in the slide groove 211a, and the storage medium 230 in the bracket 240a (bearing portion 243) can be in electrical contact with the identification contact 113.

[0083] In the solution of this embodiment, the identification component also includes an elastic member 260 to enable the bracket 240a to move in the up and down directions, so that the bracket 240a can avoid the protrusion 111, and the bracket 240a can be reset after the bracket 240a passes over the protrusion 111 to achieve electrical contact between the storage medium 230 and the identification contact 113. Compared with the prior art, there is no need to set up a bracket cover for installation, the structure is simple, the matching method between the identification component and the image forming device 100 is also simpler, and the assembly is smoother.

[0084] Embodiment 6

[0085] This embodiment provides another drum assembly 200 , which is different from the fifth embodiment in that the extending direction of the slide groove 211 b is different.

[0086] like Fig.16 and Fig.17As shown, in this embodiment, the slide groove 211b extends obliquely relative to the third direction (up and down direction), the extension axis of the slide groove 211b is L1, the extension axis L1 of the slide groove 211b intersects with the third direction, and the slide groove 211b is inclined at 30° with the third direction, that is, the included angle A between the extension axis L1 of the slide groove 211b and the third direction is 30°. The upper end of the slide groove 211b is located in front of the lower end of the slide groove 211b.

[0087] like Fig.16 and Fig.17 As shown, the elastic member is arranged in the slide groove 211b, and the bracket 240a can move along the slide groove 211b, that is, the bracket 240 also moves obliquely relative to the third direction. When the bracket 240a moves, it has a component in the third direction, that is, after the bracket 240a is subjected to the force of the protrusion 111, it slides downward and backward in the slide groove 211b and compresses the elastic member 260, thereby avoiding the protrusion 111. After the bracket 240a passes over the protrusion 111, the elastic recovery force of the elastic member 260 causes the bracket 240a to move upward and forward, so that the storage medium can be in electrical contact with the identification contact.

[0088] The other structures of this embodiment are the same as those of the first and fifth embodiments, and will not be described again here.

[0089] In some embodiments, the slide groove 211b is inclined at 30° with respect to the third direction, and the upper end of the slide groove 211b is located behind the lower end of the slide groove 211b, so that the storage medium can also be in electrical contact with the identification contact.

[0090] Embodiment 7

[0091] This embodiment provides another drum assembly 200 , which is different from the fifth and sixth embodiments in that the extension direction of the slide groove 211 c is different.

[0092] like Fig.18 and Fig.19 As shown, in this embodiment, the slide groove 211c extends obliquely relative to the third direction (up and down direction), the extension axis of the slide groove 211c is L2, the slide groove 211c is inclined at 45° to the third direction, that is, the angle B between the extension axis L2 of the slide groove 211c and the third direction is 45°, and the upper end of the slide groove 211c is located in front of the lower end of the slide groove 211c.

[0093] It should be noted that the included angle between the slide groove 211c and the third direction is not limited to 30° and 45°, and may also be any angle between 30° and 45°.

[0094] The other structures of this embodiment are the same as those of the first and fifth embodiments, and will not be described again here.

[0095] In some embodiments, the slide groove 211c is inclined at 45 degrees to the third direction, and the upper end of the slide groove 211c is located behind the lower end of the slide groove 211c, so that the storage medium can be in electrical contact with the identification contact.

[0096] The above 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, which all belong to the protection scope of the present invention.

Claims

1. A drum assembly, characterized in that: include: A drum frame having side walls arranged opposite to each other in a first direction, a photosensitive drum being rotatably supported on the side walls, the axial direction of the photosensitive drum extending along the first direction, the photosensitive drum being located at a front end of the drum frame in a second direction, and the second direction intersecting with the first direction; The identification component is arranged on a side wall of the drum frame, and the identification component can undergo elastic deformation.

2. The drum assembly according to claim 1, characterized in that The identification component comprises a bracket, an electrical contact surface and a storage medium, the electrical contact surface is electrically connected to the storage medium, the bracket carries the electrical contact surface, the bracket is fixedly arranged on the side wall of the drum frame, and the bracket can undergo elastic deformation.

3. The drum assembly according to claim 2, characterized in that The bracket includes a cantilever extending along a third direction, and the cantilever can be elastically deformed along the third direction, and the third direction intersects with the first direction and the second direction.

4. The drum assembly according to claim 3, characterized in that The first end of the cantilever is connected to a bearing portion for bearing the electrical contact surface, the second end of the cantilever is fixedly connected to the side wall of the drum frame, and the first end is located above the second end in the third direction.

5. The drum assembly according to claim 4, characterized in that The first end of the cantilever is located in front of the second end in the second direction, and the cantilever can be elastically deformed along the second direction; or, The first end of the cantilever is located at the rear side of the second end in the second direction, and the cantilever can be elastically deformed along the second direction; or, In a first direction, the first end of the cantilever is farther away from the side wall of the drum frame than the second end, and the cantilever can be elastically deformed along the first direction; or, At least one recessed portion is provided on the side surface of the cantilever, and the cantilever can be elastically deformed along the third direction from the recessed portion.

6. The drum assembly according to claim 4, characterized in that The cantilever is in a bent shape.

7. The drum assembly according to claim 6, characterized in that The cantilever is an "S" shaped structure.

8. The drum assembly according to any one of claims 6 to 7, characterized in that The bracket further includes a limiting portion, and the limiting portion is arranged at the rear side of the bearing portion in the second direction.

9. The drum assembly according to claim 1, characterized in that The identification component includes a storage medium, an electrical contact surface, a bracket and an elastic member; the electrical contact surface is electrically connected to the storage medium, the electrical contact surface is carried on the bracket, one end of the elastic member is connected to the bracket, and the other end is connected to the side wall of the drum frame.

10. The drum assembly according to claim 9, characterized in that A slide groove is provided on the side wall of the drum frame, the elastic member is installed in the slide groove, and the slide groove extends along the third direction.

11. The drum assembly according to claim 10, characterized in that The slide groove is inclined at 30° to 45° relative to the third direction.

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