Chip assembly and developing box

Abstract

The utility model provides a chip assembly which is suitable for a developing box detachably mounted in imaging equipment provided with a force application part, and the developing box comprises a shell used for accommodating a developing agent; a developing roller rotatably disposed in the housing; the end cover is provided with an end cover main body; the chip assembly is detachably installed on at least one of the shell and the end cover main body, and comprises a chip support which can move relative to at least one of the shell and the end cover main body and is used for positioning a chip; the movable part is matched with the chip support and is used for abutting against the force application part to receive the thrust; the mounting seat is fixed relative to at least one of the shell and the end cover main body and is used for accommodating the chip bracket and the movable part; the force conversion part is used for converting the backward thrust applied to the movable part into thrust applied to the chip support in a preset direction intersecting with the front-back direction; according to the scheme, the thrust can be prevented from directly acting on the chip bracket, so that the chip is prevented from being damaged due to scraping between the chip and other parts of the imaging equipment.

Description

Technical Field

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

[0002] A developing box is an essential component of an electronic photographic imaging device (hereinafter referred to as "imaging device"). The developing box has a shell for accommodating a developer, and a developing roller rotatably arranged in the shell, the developing roller is used to carry the developer and supply the developer to the outside of the developing box; the developing box is usually provided with a chip for storing parameter information related to the developing box, the chip has an electrical contact portion for electrically contacting an electrical contact pin in the imaging device, when the developing box is installed to the imaging device, the electrical contact portion is electrically contacted with the electrical contact pin, so that the imaging device can read and identify the relevant information of the developing box; the developing box also has an end cover arranged at one end of the shell, the end cover is used to protect at least a portion of the shell, and the chip holder in the developing box for accommodating the chip is movable relative to the end cover / shell.

[0003] In the prior art, one end of the chip holder needs to abut against the guide rail in the imaging device, so that the chip holder is subjected to a thrust toward the electric contact pin, thereby making the electrical contact portion and the electric contact pin in stable electrical contact. However, during the process of installing the developing box to the imaging device, due to the angle deviation that may occur during manual installation, the developing box may not be accurately installed to the imaging device along the preset position, causing the chip holder to abut against other positions in the imaging device first, so that the chip holder receives the force toward the electric contact pin first, which causes the chip to scratch other parts of the imaging device and damage the chip, making it impossible to achieve stable electrical contact with the electric contact pin in the imaging device. Utility Model Content

[0004] The utility model provides a chip assembly adopting the following technical solution and a developing box having the chip assembly, so that the electrical contact portion of the chip forms a stable electrical contact with an electrical contact pin in an imaging device.

[0005] In order to achieve the above purpose, the present invention specifically adopts the following technical solutions:

[0006] A chip assembly is suitable for being detachably mounted on a developing box in an imaging device provided with a force-applying component, and is used to carry a chip that stores information related to the developing box. The developing box includes: a shell for accommodating a developer; a developing roller rotatably arranged in the shell for carrying the developer, the developing roller's rotation axis extending in a first direction, and directions intersecting the first direction are a second direction / front-rear direction and a third direction / up-down direction; an end cover arranged at one end of the shell in the first direction, and having an end cover body; the chip assembly is detachably mounted on at least one of the shell and the end cover body, and includes: a chip holder, movable relative to at least one of the shell and the end cover body, for positioning the chip; a movable part, cooperating with the chip holder, and used to abut against the force-applying component to receive a thrust; a mounting seat, fixed relative to at least one of the shell and the end cover body, for accommodating the chip holder and the movable part; a force conversion part, for converting the backward thrust received by the movable part into a thrust in a predetermined direction intersecting the front-rear direction applied to the chip holder.

[0007] Furthermore, the force conversion component includes a coupling portion extending from the movable part, and a coupled portion formed on the chip holder for cooperating with the coupling portion, wherein the coupled portion is used to cooperate with the coupling portion to force the chip holder to move in a predetermined direction intersecting the front-to-back direction.

[0008] Furthermore, the coupled portion is provided with a guide surface inclined relative to the third direction.

[0009] Furthermore, the chip assembly further includes an elastic member disposed between the movable member and the mounting seat, and under the action of the elastic force released by the elastic member, the movable member is pushed toward the initial position.

[0010] Furthermore, the mounting seat has a first main body and at least one guiding portion formed on the first main body, and the chip holder has a second main body and at least one guided portion formed on the second main body. Through the cooperation between the guided portion and the guiding portion, the chip holder moves in a predetermined direction intersecting the front-to-back direction.

[0011] Furthermore, the mounting seat also has a second snap-fitting portion extending from the first main body, and the developing box has a second snap-fitting portion formed on at least one of the shell and the end cover main body, and the second snap-fitting portion is used to cooperate with the second snap-fitting portion to fix the mounting seat.

[0012] Furthermore, the mounting seat also has at least one first fastened portion formed on the first main body, the movable part has a third main body and at least one first fastening portion formed on the third main body, the first fastening portion is used to cooperate with the first fastened portion; along the second direction, the first fastened portion has a space allowing the first fastening portion to move.

[0013] Furthermore, the chip holder further comprises a chip seat formed on the second body for accommodating the chip. Along the first direction, the chip seat is spaced apart from at least one of the housing and the end cover body.

[0014] Furthermore, along the second direction, the chip bracket and the mounting seat are spaced apart.

[0015] The utility model also provides a developing box, including a shell, a developing roller, an end cover arranged at one end of the shell, and the chip assembly as described above, wherein the developing roller is rotatably arranged in the shell, the end cover has an end cover body, and the chip assembly is detachably connected to at least one of the shell and the end cover body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the developing box involved in the present utility model.

[0017] Figure 2 This is a three-dimensional diagram of the developer box of the present invention with the chip component hidden.

[0018] Figure 3 It is a three-dimensional diagram of a mounting seat in a chip assembly involved in the present invention.

[0019] Figure 4 It is a three-dimensional diagram of a chip bracket in a chip assembly involved in the present invention.

[0020] Figure 5 It is a three-dimensional diagram of the movable parts in the chip assembly involved in the utility model.

[0021] Figure 6 This is a three-dimensional diagram of the chip component of the present invention with the mounting seat hidden.

[0022] Figure 7 and Figure 8 It is a plan view of the chip assembly involved in the present invention observed along the third direction.

[0023] Figure 9 It is a plan view of the developing box involved in the utility model observed along the second direction. DETAILED DESCRIPTION

[0024] The following describes in detail the chip assembly and the structure of the developer box having the chip assembly involved in the present invention, as well as other aspects through specific implementations and with reference to the accompanying drawings.

[0025] like Figure 1As shown, the developing box 1 can be detachably installed in an electronic photographic imaging device (hereinafter referred to as "imaging device"), and the developing box 1 has a shell 10 for accommodating the developer and a developing roller 11 rotatably arranged in the shell 10, and the developing roller 11 is used to carry the developer and supply the developer to the outside of the developing box 1.

[0026] To make the following description clearer, Figure 1 As shown, the extension direction of the rotation axis L of the developing roller 11 is defined as the first direction / left-right direction; the direction intersecting with the first direction is the second direction / front-back direction, and along the front-back direction, the end of the developing box 1 on which the developing roller 11 is installed is defined as the front, and the end opposite to the front is defined as the rear; the direction intersecting with the first direction and the second direction is the third direction / up-down direction, and the gravity direction of the developing box 1 is downward, and the end opposite to the downward is upward.

[0027] like Figure 1 As shown, along the first direction, the developing box 1 also includes a developing roller gear 12 coaxially arranged with the developing roller 11, and a driving force receiving member 13 arranged at one end of the shell 10, and the driving force receiving member 13 is used to receive the rotational driving force output by the imaging device, thereby directly or indirectly driving the developing roller gear 12 to drive the developing roller 11 to rotate; along the first direction, the end of the developing box 1 for receiving the rotational driving force from the imaging device is defined as the driving end / left side, and the end opposite to the driving end is defined as the non-driving end / right side.

[0028] like Figure 1 As shown, along the first direction, the developing box 1 has an end cover 14 arranged at the driving end of the shell 10, and the end cover 14 is used to cover at least a portion of the developing roller gear 12. The end cover 14 has an end cover body 140 and a first through hole 141 formed on the end cover body 140, and the driving force receiving member 13 is exposed through the first through hole 141.

[0029] like Figure 1 As shown, the developing box 1 also has a chip assembly 2 arranged at the driving end, and the chip assembly 2 can be detachably mounted on at least one of the end cover main body 140 and the shell 10; the chip assembly 2 is used to carry a chip 3 for storing relevant information of the developing box 1, and the chip 3 has an electrical contact portion 31 for electrically contacting an electrical contact pin in the imaging device. When the developing box 1 is in a state of being installed in the imaging device, the electrical contact portion 31 is electrically contacted with the electrical contact pin in the imaging device, so that the developing box 1 establishes a communication connection with the imaging device.

[0030] like Figure 4As shown, the chip assembly 2 includes a chip holder 22 for positioning the chip 3. The chip holder 22 is movable relative to at least one of the shell 10 and the end cover body 140. The chip holder 22 has a second body 220 and a chip seat 221 formed on the second body 220. The chip seat 221 is used to accommodate the chip 3.

[0031] like Figure 5 and Figure 6 As shown, the chip assembly 2 also includes a movable member 23 for cooperating with the chip bracket 22, the movable member 23 has a third main body 230 and a force-bearing portion 234 formed on the third main body 230, the force-bearing portion 234 is used to cooperate with the force-applying component in the imaging device, and when the developing cartridge 1 is installed on the imaging device, the force-applying component abuts against the force-bearing portion 234 and applies a thrust to the force-bearing portion 234 to move the movable member 23 from front to back; the movable member 23 also has at least one coupling portion 232 formed on the third main body 230, and the chip bracket 22 also has at least one coupled portion 223 formed on the second main body 220, the coupled portion 223 is used to cooperate with the coupling portion 232 to force the chip bracket 22 to move from front to back. The bracket 22 moves in a predetermined direction (for example, an upward direction); specifically, the coupled portion 223 is provided with a guide surface 224, and the guide surface 224 is inclined relative to the third direction; the coupling portion 232 and the coupled portion 223 are collectively referred to as a force conversion component, and the force conversion component is used to convert the backward thrust received by the movable part 23 into a thrust applied to the chip bracket 22 in a direction intersecting the front-to-back direction (for example, an upward direction), and the force conversion component causes the thrust to act indirectly on the chip bracket 22, thereby preventing the thrust from directly acting on the chip bracket 22, causing the chip bracket 22 to move rapidly in a direction intersecting the front-to-back direction, causing the chip 3 to scrape against other components of the imaging device and damage the chip 3.

[0032] like Figure 2 、 Figure 3As shown, the chip assembly 2 also has a mounting base 21 for accommodating the chip holder 22 and the movable part 23. The mounting base 21 can be detachably mounted on at least one of the shell 10 and the end cover body 140, so that the chip holder 22 and the movable part 23 are mounted on at least one of the shell 10 and the end cover body 140. The mounting base 21 is fixed relative to at least one of the shell 10 and the end cover body 140. Specifically, the mounting base 21 has a first body 210 and a protrusion 214 and a second buckling portion 213 extending from the first body 210. The mounting base 21 also has a matching portion 215 formed on the protrusion 214. The developing box 1 also has a second fastened portion 144 for cooperating with the second fastening portion 213, a mounting groove 143 for cooperating with the protrusion 214, and a fitted portion 142 for abutting against the fitting portion 215, which are formed on at least one of the shell 10 and the end cover main body 140, so that the mounting seat 21 can be detachably mounted to at least one of the shell 10 and the end cover main body 140; the provision of the second fastening portion 213 and the second fastened portion 144 makes it unnecessary to install additional fixings for fixing the mounting seat 21, the number of parts of the developing box 1 can be reduced, and the assembly steps can also be reduced, thereby reducing the material cost and assembly cost of the developing box 1.

[0033] like Figure 3 、 Figure 4 and Figure 6 As shown, the mounting seat 21 also has at least one guiding portion 211 formed in the first body 210, and the chip holder 22 also has at least one guided portion 222 formed on the second body 220, and the guided portion 222 is used to cooperate with the guiding portion 211 so that the chip holder 22 can move in a predetermined direction along the guiding portion 211. At the same time, the chip holder 22 can also be positioned to prevent the chip holder 22 from deviating from the predetermined direction during movement, so that the electrical contact portion 31 of the chip 3 can be in stable electrical contact with the electrical contact pin in the imaging device.

[0034] like Figure 8 As shown, the mounting seat 21 also includes at least one first engaged portion 216 formed on the first main body 210, and the movable part 23 also has at least one first engaging portion 231 extending from the third main body 230, and the first engaging portion 231 is used to cooperate with the first engaged portion 216 to install the movable part 23 on the mounting seat 21, and along the second direction, the first engaged portion 216 has a space allowing the first engaging portion 231 to move.

[0035] like Figure 5 、 Figure 6 and Figure 8As shown, the chip assembly 2 also includes an elastic member 24, the movable member 23 also has a first fixing portion 233 extending from the third main body 230, and the mounting seat 21 also has a second fixing portion 212 extending from the first main body 210. One end of the elastic member 24 abuts against the first fixing portion 233, and the other end abuts against the second fixing portion 212. When the developing cartridge 1 is installed on the imaging device, the movable member 23 is forced to move backward, squeezing the elastic member 24, causing the elastic member 24 to undergo elastic deformation. When the thrust applied to the movable member 23 is large, the elastic member 24 can buffer the thrust, so that the thrust transmitted to the chip seat 221 is not too strong. The thrust is reduced to avoid damage to the chip assembly 2. At the same time, under the premise of the thrust being reduced, the moment when the chip holder 221 moves in the direction intersecting the front-to-back direction can also be delayed, to avoid the chip holder 221 immediately moving in the direction intersecting the front-to-back direction and causing the chip 3 to scratch other components; in the process of removing the developing box 1 from the imaging device, under the action of the elastic force released by the elastic member 24, the movable member 23 is pushed toward the initial position, and the chip holder 221 is also reset under the action of gravity. There is no need to install additional components to force the chip 3 to reset, which can simplify the structure; preferably, the elastic member 24 can be a spring, a compression spring, a tension spring, rubber, a sponge, etc.

[0036] like Figure 8 As shown, the mounting seat 21 further has an injection hole 217 formed on the first body 210 , and the injection hole 217 is used for injection molding the second fixing portion 212 .

[0037] like Figure 7 As shown, along the second direction, the chip holder 22 and the mounting seat 21 are spaced apart. Specifically, there is a first gap 25 between the chip holder 22 and the mounting seat 21. The first gap 25 is used to observe whether the elastic member 24 is correctly installed on the second fixing portion 212 to avoid deviation in the installation position of the elastic member 24, thereby ensuring the technical effect of the chip assembly 2.

[0038] like Figure 9As shown, along the first direction, the chip holder 221 is spaced apart from at least one of the shell body 10 and the end cover main body 140, that is, there is a second gap 26 between the chip holder 221 and at least one of the shell body 10 and the end cover main body 140. Since the force-applying component in the imaging device has an inclined surface, when the developing box 1 is installed to the imaging device, the force-applying component pushes the movable part 23 to move backward and also pushes the developing box 1 to move in the first direction. The setting of the second gap 26 enables the positioning part in the imaging device to enter the second gap 26 and abut against the right side of the chip holder 221 during the installation of the developing box 1 to the imaging device, thereby positioning the developing box 1 and avoiding poor electrical contact between the electrical contact part and the electrical contact pin due to the movement of the developing box 1.

[0039] like Figure 2-Figure 6 As shown, the process of assembling the chip assembly 2 and installing it to at least one of the housing 10 and the end cover body 140 is as follows: along the second direction, the elastic member 24 is first installed on the mounting seat 21 or the movable member 23, and then the chip holder 22 is first installed in the mounting seat 21 along the guide portion 211, and then the movable member 23 is installed in the mounting seat 21 where the chip holder 22 is already installed along the second direction, until the first fastening portion 231 is matched with the first fastened portion 216, and the combining portion 232 is matched with the combined portion 223, and the chip assembly 2 is assembled. The chip component 2 is assembled; the chip bracket 22 cooperates with the mounting seat 21 to limit the movement of the movable part 23 in the third direction; during the process of installing the chip component 2 to at least one of the shell 10 and the end cover body 140, the protrusion 214 first enters the mounting groove 143, and then a rightward thrust is applied to the chip component 2, so that the chip component 2 rotates around the junction of the protrusion 214 and the mounting groove 143 until the second snap-fitting portion 213 cooperates with the second snap-fitted portion 144, and the chip component 2 is installed on the developer box 1.

[0040] like Figure 1 、 Figure 3 、 Figure 5 and Figure 6 As shown, during the process of installing the developing box 1 to the imaging device, the movement process of the chip assembly 2 is as follows: the force-bearing part 234 of the movable part 2 abuts against the force-applying part in the imaging device, and along the second direction, the force-applying part applies a backward thrust to the force-bearing part 234, and the movable part 23 moves backward. Through the force conversion part, the backward thrust is converted into a thrust in a direction intersecting the front and rear directions applied to the chip holder 22. As the movable part 22 moves backward, the chip holder 22 moves in a predetermined direction along the guide part 211. When the developing box 1 is installed in place, the electrical contact part 31 of the chip 3 is electrically contacted with the electrical contact pin in the imaging device.

[0041] In some embodiments, as Figure 6 As shown, the force-bearing portion 234 further has an abutting surface 235 for abutting against the force-applying component. The abutting surface 235 is configured as an inclined surface inclined relative to the first direction; the abutting surface 235 can also be configured as a corner on the movable member 23 .

[0042] In some embodiments, along the second direction, the first engaged portion 216 is communicated with the injection hole 217 , which can simplify the structure of the chip assembly 2 .

[0043] As described above, the following beneficial effects can be achieved through this solution:

[0044] 1. The chip assembly 2 is provided with a force conversion component to transmit the thrust exerted on the movable part 23 to the chip holder 22, thereby preventing the thrust from directly acting on the chip holder 22, causing the chip holder 22 to move rapidly in a direction intersecting the front-back direction, causing the chip 3 to scrape against other components of the imaging device and damage the chip 3.

[0045] 2. The chip assembly 2 is provided with an elastic member 24 with one end abutting against the first fixing portion 233 and the other end abutting against the second fixing portion 212. The elastic member 24 can buffer the thrust exerted on the movable member 23, thereby reducing the thrust transmitted to the chip holder 221 and avoiding damage to the chip assembly 2. At the same time, under the premise of reducing the thrust, the moment when the chip holder 221 moves in the direction intersecting the front-back direction can also be delayed, thereby avoiding the chip holder 221 immediately moving in the direction intersecting the front-back direction and causing the chip 3 to scratch other components; during the process of disassembling the developing cartridge 1 from the imaging device, the movable member 23 is pushed toward the initial position under the action of the elastic force released by the elastic member 24, and the chip holder 221 is also reset under the action of gravity. There is no need to install additional components to force the chip 3 to reset, which can simplify the structure.

[0046] 3. By providing the second engaging portion 213 and the second engaged portion 144 that cooperate with each other, it is unnecessary to install additional fixing parts for fixing the mounting seat 21. The number of parts of the developing box 1 can be reduced, and the number of assembly steps can also be reduced, thereby reducing the material cost and assembly cost of the developing box 1.

[0047] 4. Along the second direction, a first gap 25 is provided between the chip support 22 and the mounting seat 21 for observing whether the elastic member 24 is properly installed, thereby further ensuring the technical effect of the chip assembly 2 .

Claims

1. A chip assembly, adapted for detachably mounting on a developing cartridge in an imaging device provided with a force-applying component, for carrying a chip storing information related to the developing cartridge, the developing cartridge comprising: a housing for containing a developer; A developing roller is rotatably disposed in the housing and is used to carry the developer. The direction in which the developing roller's rotation axis extends is a first direction, and directions intersecting the first direction are a second direction / front-back direction and a third direction / up-down direction. An end cover is provided at one end of the housing in the first direction and has an end cover body; It is characterized in that the chip assembly is detachably mounted on at least one of the housing and the end cover body, comprising: a chip holder, movable relative to at least one of the housing and the end cover body, for positioning the chip; The movable part cooperates with the chip bracket and is used to abut against the force-applying component to receive the thrust; A mounting seat, fixed relative to at least one of the housing and the end cover body, for accommodating the chip holder and the movable part; The force conversion component is used to convert the backward thrust exerted on the movable part into a thrust in a predetermined direction intersecting with the front-rear direction and applied to the chip holder.

2. The chip assembly according to claim 1, wherein: The force conversion component includes a coupling portion extending from the movable part, and a coupled portion formed on the chip holder for cooperating with the coupling portion, wherein the coupled portion is used to cooperate with the coupling portion to force the chip holder to move in a predetermined direction intersecting the front-rear direction.

3. The chip assembly according to claim 2, wherein: The coupled portion is provided with a guide surface inclined relative to the third direction.

4. The chip assembly according to claim 1, wherein: The chip assembly further comprises an elastic member arranged between the movable member and the mounting seat, and under the action of the elastic force released by the elastic member, the movable member is pushed toward the initial position.

5. The chip assembly according to claim 1, wherein: The mounting seat has a first main body and at least one guiding portion formed on the first main body, and the chip holder has a second main body and at least one guided portion formed on the second main body. Through the cooperation between the guided portion and the guiding portion, the chip holder moves in a predetermined direction intersecting the front-to-back direction.

6. The chip assembly according to claim 5, characterized in that: The mounting seat also has a second snap-fitting portion extending from the first main body, and the developing box has a second snap-fitting portion formed on at least one of the shell and the end cover main body, and the second snap-fitting portion is used to cooperate with the second snap-fitting portion to fix the mounting seat.

7. The chip assembly according to claim 5, characterized in that: The mounting seat further comprises at least one first engaged portion formed on the first body, and the movable member comprises a third body and at least one first engaging portion formed on the third body, wherein the first engaging portion is configured to cooperate with the first engaged portion; Along the second direction, the first engaged portion has a space allowing the first engaging portion to move.

8. The chip assembly according to claim 5, wherein: The chip support further comprises a chip seat formed on the second body for accommodating the chip. Along the first direction, the chip seat is spaced apart from at least one of the housing and the end cover body.

9. The chip assembly according to any one of claims 1 to 8, characterized in that: Along the second direction, the chip support and the mounting seat are spaced apart.

10. A developing cartridge, characterized in that: The developing box includes a shell, a developing roller, an end cover arranged at one end of the shell, and a chip assembly according to any one of claims 1 to 9, wherein the developing roller is rotatably arranged in the shell, the end cover has an end cover body, and the chip assembly is detachably mounted to at least one of the shell and the end cover body.

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