CN211617051U

CN211617051U - Holding part and printer using same

Info

Publication number: CN211617051U
Application number: CN201921468568.0U
Authority: CN
Inventors: 陈伟健; 朱一静
Original assignee: Zhuhai Ninestar Management Co Ltd
Current assignee: Zhuhai Ninestar Management Co Ltd
Priority date: 2019-07-18
Filing date: 2019-09-03
Publication date: 2020-10-02
Anticipated expiration: 2029-09-03

Abstract

The utility model provides a holding part, which is used for installing an ink box; the holding portion has one or more contact pin portions; the stylus portion has: a plurality of contact pins, a plurality of grooves corresponding to the plurality of contact pins, and a base; the groove is arranged on the base; the groove has: an open end, a closed end on the opposite side of the open end, and a contact pin mounted in the groove from the open end; the direction in which the ink cartridge is mounted to the holding portion is a-Z-axis direction, the Z-axis direction being perpendicular to the bottom wall of the holding portion; at least one contact pin is located in the-Z direction of the corresponding closed end. The structure can prevent the contact pin from being separated from the contact pin part when the contact pin is subjected to the force in the + Z-axis direction, and ensures the electric connection between the ink box and the printer.

Description

Holding part and printer using same

The utility model discloses require to submit chinese patent office, application number 201921138018.2, the chinese patent utility model's of application name "a maintenance portion and use printer of this maintenance portion" priority in 2019 year 07 month 18, its whole content is combined through cross reference in the utility model discloses in.

Technical Field

The utility model relates to an ink jet printer technical field especially relates to retaining part and printer.

Background

With the continuous progress of science and technology, the printer industry develops rapidly, the application of the ink-jet printer is more and more extensive, and the ink box becomes an easy-to-consume part of the ink-jet printer. The holding portion is a part of the printer and stores and accommodates the ink cartridge. The ink box is fixed in the holding part and the transmission of electric signals occurs between the ink box and the holding part, so that the ink box can be normally used to provide required ink for printing.

Fig. 1 is a schematic view of a holding portion of the background art. Figure 2 is a schematic view of a prior art stylus holder. As shown in fig. 1, the holding portion 90 is a part of the printer for carrying a plurality of or one ink cartridge, the ink cartridge is detachably mounted to the holding portion 90 in the mounting direction, and when the ink cartridge is used up, it is necessary to replace the ink cartridge with a new one. The holding portion 90 includes a needle portion 91, an ink supply portion 92, a mounting portion 93, a fixing portion 94, an opening 95, and a bottom wall 90 a. The ink cartridge is mounted into the holding portion 90 from the opening 95 in the mounting direction. The ink in the ink cartridge reaches the ink supply portion 92 through the ink outlet, and the ink supply portion 92 can supply the ink to the print head, so that the ink can be used for performing printing. The fixing portion 94 is used to fix the ink cartridge to the holding portion 90, preventing the ink cartridge from coming out of the holding portion 90. The contact portion 91 is used to electrically connect the ink cartridge and the printer, and is responsible for the transmission of electrical signals.

And setting a three-dimensional rectangular coordinate system, namely an XYZ-axis coordinate system. With the direction in which the ink cartridge is mounted to the holding portion 90 being the-Z-axis direction (i.e., the mounting direction), the direction in which the ink cartridge is removed from the holding portion 90 is the + Z-axis direction, the opening 95 is located in the + Z-axis direction, and the bottom wall 90a is located in the-Z-axis direction. In general, the printer is laid flat on an office desk or a printing desk, the opening 95 of the holding portion 90 is located above the direction of gravity, and the bottom wall 90a is located below the direction of gravity, thereby facilitating the user to mount or dismount the ink cartridge. Further, the holding portion 90 may carry a plurality of or one ink cartridge, having a plurality of or one mounting position 93.

In the present embodiment, as shown in fig. 1, the holding portion 90 is a member having an opening 95 in an approximately rectangular parallelepiped or square shape. The inner side wall and the bottom wall 90a of the holding portion 90 constitute a mounting position 93. The holding portion 90 has 4 mounting positions 93, and 4 ink cartridges can be mounted, and 4 ink cartridges can store 4 different colors of ink, such as black, yellow, blue, and red. The stylus portion 91 is attached to the first side wall 90c of the holding portion 90, the attachment positions 93 are arranged in order in the Y-axis direction, and 4 attachment positions 93 are arranged in order in the Y-axis direction. While the direction perpendicular to the Y axis and the Z axis is the X axis direction, wherein the direction from the inside of the holding portion 90 toward the stylus portion 91 is the + X axis direction. The + X axis is perpendicular to the first sidewall 90 c. When viewed in the + X-axis direction, the + Y-axis direction is located on the left side when the + Z-axis is located above on the YZ-plane.

Fig. 2 is a schematic view of a contact pin portion 91 of the related art. Fig. 3 is a schematic diagram of a prior art stylus 911. As shown in fig. 2 and 3, the stylus portion 91 includes: a base 910, a

locking portion

961 and 962, and a plurality of contact pins attached to the base 910. The locking portions 961-962 lock the stylus portion 91 to the holding portion 90. The plurality of contact pins are a first contact pin 911 to a ninth contact pin 919, respectively. The contact pin is a sheet metal, can play the electrically conductive effect, and difficult wearing and tearing. The base 910 has a plurality of

grooves

981 and 989. The grooves 981-989 correspond to the contact pins 911-919 one by one, the grooves 981-989 are U-shaped and are provided with groove openings 981a-989a in the + Z-axis direction, and the contact pins 911-919 are arranged in the grooves 981-989 through the groove openings 981a-989a in the-Z-axis direction. Specifically, the first contact pin 911 is fitted into the first groove 981 through the notch 981a in the-Z axis direction; the second contact pin 912 to the ninth contact pin 919 are mounted in the same manner, and description thereof will not be repeated.

As shown in fig. 3, taking the first contact pin 911 as an example, the first contact pin 911 is divided into a first part 911a, a second part 911b, and a third part 911 c. The first part 911a or the third part 911c is used to contact the chip on the ink cartridge; the second part 911b is used to connect to the internal circuitry of the printer, for example: which is connected to a main circuit in the inkjet printer through a holding portion chip. The third part 911c is connected to the first part 911a and the second part 911 b. The structures of the second contact pin 912 to the ninth contact pin 919 are the same, and are not repeated here.

Fig. 4 is a schematic diagram of the chip 20 on the ink cartridge in contact with the contact pins. As shown in fig. 4, the ink cartridge is mounted in the holding portion 90 in the-Z axis direction. When the cartridge is mounted in the holder 90, the chip 20 will exert a force on the contact pins 911-. When the ink cartridge is taken out of the holding portion 90, the ink cartridge and the chip 20 move along the + Z axis, and the contact pins 911-; or the force received by the contact pins 911-919 is transmitted to the contact pin portion 91, so that the contact pin portion 91 is disengaged from the holding portion 90. Because the notches 981a-989a are located in the + Z direction of the contact pins 911-.

Further, chinese patent No. 201320875786.2 discloses a form in which a cartridge chip is in contact with printer contact pins in a holding portion. The upper and lower row of chip contacts 42, 41 are located in the gap between the upper and lower row of cartridge chip contact pins 52, 51 when the cartridge is mounted to the printer. When the ink box needs to be separated from the printer, the ink box chip 4 moves along the + Z axis, the upper row of chip contacts 42 need to cross the upper row of ink box chip contact pins 52 to separate the ink box and the ink box chip 4 from the printer, the upper row of ink box chip contact pins 52 can be subjected to a large force in the + Z axis direction, the printer contact pins are more likely to be separated from the contact pin mechanism, and finally the damage to the printer and the electric connection between the ink box and the printer cannot be realized.

SUMMERY OF THE UTILITY MODEL

The technical scheme of the utility model at least one of above technical problem can be solved.

The embodiment of the utility model provides a holding part, the holding part is used for installing the ink horn; the holding portion has one or more contact pin portions; the stylus portion has: a plurality of contact pins, a plurality of grooves corresponding to the plurality of contact pins, and a base; the groove is arranged on the base; the groove has: an open end, a closed end on the opposite side of the open end, and a contact pin mounted in the groove from the open end; the direction in which the ink cartridge is mounted to the holding portion is a-Z-axis direction, the Z-axis direction being perpendicular to the bottom wall of the holding portion; at least one contact pin is located in the-Z direction of the corresponding closed end.

The contact pins are divided into an upper row of contact pins and a lower row of contact pins; the contact pin has a first portion protruding from the base; each of the upper row of contact pins is located in the-Z direction of the corresponding closed end.

Optionally, the contact pins include a high voltage contact pin, a short circuit detection contact pin and a low voltage contact pin, the contact pins having first portions protruding from the base, the first portion of at least one of the low voltage contact pins being located in the-Z direction of the corresponding closed end.

Alternatively, the high voltage contact pin is located outside the short circuit detection contact pin, and the short circuit detection contact pin is located outside the low voltage contact pin in the Y-axis direction, where the Y-axis direction is the direction in which the ink cartridges are arranged in the holding portion.

Optionally, the first portions are arranged in at least two rows in the Z-axis direction, the first portions of the high-voltage contact pins are located in a first row, and the first portions of the short-circuit detection contact pins are located in a second row, wherein the first row is located on the front end side in the-Z-axis direction;

the first portion of the short detection contact pin is closer to the first portion of the high voltage contact pin than any one of the first portions of the low voltage contact pins.

Optionally, a first portion of a part of the low voltage contact pins is located on the first row and between first portions of two of the short detection contact pins;

another part of the first part of the low voltage contact pins is located on the second row.

Optionally, the low voltage contact pin and the short detection contact pin are both located in the-Z direction of the closed end, and the first portions of both are located in the + Z direction of the first portion of the high voltage contact pin.

Optionally, the high voltage contact pin and the short circuit detection contact pin are both located in the + Z-axis direction of the corresponding closed end, and the low voltage contact pin is located in the-Z-axis direction of the corresponding closed end;

the first portion of the low voltage contact pin is located in a + Z axis direction of the first portion of the short detection contact pin, and the first portion of the short detection contact pin is located in a + Z axis direction of the first portion of the high voltage contact pin.

Optionally, each of the contact pins comprises an upper row of contact pins and a lower row of contact pins; the contact pin has a first portion protruding from the base; each of the upper row of contact pins is located in a-Z direction of the closed end corresponding thereto.

Optionally, the first portion has an inclined portion disposed in the + Z axis direction.

Optionally, each of the contact pins is located in a-Z direction of the corresponding closed end.

The embodiment of the utility model provides a printer of arbitrary holding portion more than using is still provided.

After adopting above-mentioned technical scheme, beneficial effect is:

the structure can prevent the contact pin from being separated from the contact pin part when the contact pin is subjected to the force in the + Z-axis direction, and ensures the electric connection between the ink box and the printer.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.

Drawings

Fig. 1 is a schematic view of a holding portion of the background art.

Figure 2 is a schematic view of a prior art stylus holder.

Fig. 3 is a schematic view of a prior art stylus.

Fig. 4 is a schematic view of a chip on an ink cartridge in contact with contact pins.

Fig. 5 is a schematic view of the holding portion of the first embodiment.

FIG. 6 is a schematic view of a contact portion according to the first embodiment.

Fig. 7 is a disassembled view of the contact pin portion in the first embodiment.

Fig. 8 is a schematic view of a stylus portion according to the second embodiment.

FIG. 9 is a schematic view of a stylus portion according to the fourth embodiment.

FIG. 10 is a schematic view of a stylus portion according to the fifth embodiment.

FIG. 11 is a schematic view of a stylus portion according to the sixth embodiment.

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the description of the present invention, unless explicitly stated or limited otherwise, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless specified or indicated otherwise; the terms "connected," "fixed," and the like are to be construed broadly and may, for example, be fixedly connected, detachably connected, integrally connected, or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description of the present invention, it should be understood that the terms "upper" and "lower" used in the embodiments of the present invention are used in the angle shown in the drawings, and should not be construed as limiting the embodiments of the present invention. In addition, in this context, it will also be understood that when an element is referred to as being "on" or "under" another element, it can be directly on "or" under "the other element or be indirectly on" or "under" the other element via an intermediate element.

The first embodiment is as follows:

fig. 5 is a schematic view of the holding portion of the first embodiment. FIG. 6 is a schematic view of a contact portion according to the first embodiment. Fig. 7 is a disassembled view of the contact pin portion in the first embodiment. And setting a three-dimensional rectangular coordinate system, namely an XYZ-axis coordinate system. Consistent with the three-dimensional rectangular coordinate system of the background art.

As shown in fig. 5, the holding portion 91 is a part of the printer for carrying one or more ink cartridges, which are detachably mounted in the holding portion 90 in the mounting direction and which need to be replaced with new ones after the ink cartridges have been used. The holding portion 90 includes a needle portion 91, an ink supply portion 92, a mounting portion 93, a fixing portion 94, an opening 95, and a bottom wall 90 a. The holding portion 90 has one or more mounting locations 93, one or more stylus portions 91; the stylus portions 91 correspond one-to-one to the mounting locations 93. The stylus portion 91 is provided on the first side wall 90 c. The ink cartridge is mounted into the holding portion 90 from the opening 95 in the mounting direction. The ink in the ink cartridge reaches the ink supply portion 92 through the ink outlet, and the ink supply portion 92 can supply the ink to the print head, so that the ink can be used for performing printing. The fixing portion 94 is used to fix the ink cartridge to the holding portion 90, preventing the ink cartridge from coming out of the holding portion 90. The contact portion 91 is used to electrically connect the ink cartridge and the printer, and is responsible for the transmission of electrical signals. The bottom wall 90a is perpendicular to the mounting direction and the first side wall 90c is parallel to the mounting direction.

In general, the printer is laid flat on an office desk or a printing desk, the opening 95 of the holding portion 90 is located above the direction of gravity, and the bottom wall 90a is located below the direction of gravity, thereby facilitating the user to mount or dismount the ink cartridge.

In the present embodiment, as shown in fig. 5, the holding portion 90 is a member having an opening 95 in an approximately rectangular parallelepiped or square shape. The inner side wall and the bottom wall 90a of the holding portion 90 constitute a mounting position 93. The holding portion 90 has 4 mounting positions 93, and 4 ink cartridges can be mounted, and 4 ink cartridges can store 4 different colors of ink, such as black, yellow, blue, and red. The stylus portion 91 is mounted on the first side wall 90c of the mounting portion 90, the mounting positions 93 are sequentially arranged in the Y-axis direction, and 4 mounting positions 93 are sequentially arranged in the Y-axis direction. Each mounting site 93 has one contact pin portion 91, i.e., 4 contact pin portions 91 in total in the present embodiment.

As shown in fig. 5 and 6, the contact pin portion 91 has: a base 910, a locking portion 961-. The locking portions 961-962 lock the stylus portion 91 to the holding portion 90. The plurality of contact pins are a first contact pin 911 to a ninth contact pin 919, respectively. The contact pin is a sheet metal, can play the electrically conductive effect, and difficult wearing and tearing. The base 910 has a plurality of

grooves

981 and 989. The

grooves

981 and 989 correspond to the contact pins 911 and 919 one by one, and the

grooves

981 and 989 are U-shaped. The structure of the plurality of contact pins 911-919 is shown in fig. 3, and taking the first contact pin 911 as an example, the first contact pin 911 is divided into a first part 911a, a second part 911b, and a third part 911 c. The first part 911a or the third part 911c is used to contact the chip on the ink cartridge; the second part 911b is used to connect to the internal circuitry of the printer, for example: which is connected to a main circuit in the inkjet printer through a holding portion chip. The third part 911c is connected to the first part 911a and the second part 911 b. The third portion 911c is located at an end of the first contact pin 911 in the Z-axis direction, and the first contact pin 911 is fixed to the first groove 981 by the third portion 911c or a part of the third portion 911c (for example, a horizontal portion 911h of the third portion 911 c). The first and

second portions

911a and 911b are provided at the ends of the first contact pin 911 in the Z-axis direction, so that the first and

second portions

911a and 911b can be elastically deformed and easily return to their original shapes after being deformed. The first contact pin 911a has a first portion 911a disposed in the-X axis direction and a second portion 911b disposed in the + X axis direction. The first part 911a and the second part 911b protrude from the base 910, and the third part 911c does not protrude from the base 910. Further, the first part 911a and the second part 911b protrude from the base 910 in the X-axis direction, and the base 910 is located between the first part 911a and the second part 911 b. The first portion 911a is closer to the mounting location than the second portion 911 b. The third part 911c is divided into a first vertical part 911k and a second vertical part 911j perpendicular to the X-axis direction, and a horizontal part 911h parallel to the X-axis direction; the horizontal portion 911h connects the first vertical portion 911k and the second vertical portion 911 j. The first vertical portion 911k and the second vertical portion 911j extend in a direction parallel to the mounting direction of the ink cartridge to the mounting portion (i.e., the Z-axis direction). The first vertical portion 911k is closer to the mounting location than the second vertical portion 911 j. The end of the first vertical portion 911k is connected to the first portion 911a, the end of the second vertical portion 911j is connected to the second portion 911b, and the horizontal portion 911h or the first and second vertical portions 911k and 911j are fixed to the first recess 981 in the Z-axis direction. The first portion 911a is located at the distal end of the first contact pin 911. The first part 911a of the contact pin 911 is in contact with the chip, forming a contact area; the second portion 911b is connected to circuitry within the ink jet printer. The third part 911c connects the first part 911a and the second part 911 b. The first portion 911a is a ridge region, the first vertical portion 911k is a vertical region, the second portion 911b is another ridge region, and the second vertical portion 911j is another vertical region. The second to ninth contact pins 912 to 919 have the same arrangement and structure as the first contact pin 911, and detailed illustration and explanation thereof will not be provided here.

The

groove

981 and 989 also have: open ends 981a-989a, closed ends 981b-989b on opposite sides of open ends 981a-989a, the contact pins being received in recesses 981-989 a from open ends 981a-989 a; the direction in which the ink cartridge is mounted to the holding portion is the-Z-axis direction, which is perpendicular to the bottom wall 90a of the holding portion; at least one of the plurality of contact pins 911-919 is located in the-Z direction of the corresponding closed end. That is, the open end of the groove corresponding to at least one of the plurality of contact pins 911-919 is located in the-Z-axis direction of the closed end. For example, depending on the structure of the chip in contact with the contact pin portion 91, one or more of the plurality of contact pins may be subjected to a large force, which may cause the contact pins to easily come off the contact pin portion 91. The structure can prevent at least one contact pin from being separated from the contact pin part when the contact pin is subjected to the force in the + Z axis direction, and ensures the electrical connection between the ink box and the printer.

As shown in fig. 6 and 7, the first portions 911a-919a of the contact pins 911-919 are arranged in two rows in the Z-axis direction, a first row in the + Z-axis direction, and a second row in the-Z-axis direction. The contact pins are divided into an upper row of contact pins and a lower row of contact pins. The first sections 911a-914a of the upper row of contact pins 911-914 are in a first row and the first sections 915a-919a of the lower row of contact pins 915-919 are in a second row. The first sections 911a-914a of the upper row of contact pins 911-914 are located in the + Z direction of the first sections 915a-919a of the lower row of contact pins 915-919.

The

grooves

981 and 989 are configured as U-shaped grooves. The first recess 981 to the fourth recess 984 have the same structure, and in the case of the first recess 981, the first recess 981 has an open end 981a in the-Z direction and a closed end 981b on the opposite side of the open end. Closed end 981b is located on the + Z-axis direction side of open end 981 a. Closed end 981b is located in the + Z direction of first recess 981. The first contact pin 911 is located in the-Z axis direction of the corresponding closed end 981 b. The first contact pin 911 is fitted into the first groove 981 through the open end 981a in the + Z axis direction. The third portion 911c of the first contact pin 911 is located on the-Z-axis direction end portion of the first contact pin 911; the first portion 911a protrudes from the base 910. The second contact pin 912-fourth contact pin 914 and second groove 982-fourth groove 984 are mounted in the same manner and structure as the first contact pin 911 and first groove 981, and will not be described again. The fifth groove 985 to the ninth groove 989 have the same structure, and in the case of the fifth groove 985, the fifth groove 985 has an open end 985a in the + Z-axis direction and a closed end 985b on the opposite side of the open end. The closed end 985b is located on the-Z-axis direction side of the open end 985a, and the fifth contact pin 915 is fitted into the fifth recess 985 through the open end 985a in the-Z-axis direction. The third section 915c of the fifth contact pin 915 is located on the end of the fifth contact pin 911 in the + Z axis direction; the fifth section 915a protrudes from the base 910. The sixth contact pin 916, the ninth contact pin 919 and the fifth groove 985, the ninth groove 989 are mounted in the same manner and have the same structure as the fifth contact pin 915 and the fifth groove 985, and description is not repeated here. The arrangement of the fifth recess 985-the ninth recess 989 is identical to that of the prior art.

Each of the upper row of contact pins 911-914 in this configuration is located in the-Z direction of the corresponding closed end 981b-984 b. That is, the open ends 981a-984a of the grooves 981-984 corresponding to the upper row of contact pins 911-914 are located in the-Z direction of the closed ends 981b-984 b. For example, if the chip is the ink cartridge chip disclosed in chinese patent No. 201320875786.2, this structure can prevent the upper row of contact pins from disengaging from the contact pin portion when the contact pins are subjected to a force in the + Z-axis direction, thereby ensuring the electrical connection between the ink cartridge and the printer.

Example two:

fig. 8 is a schematic view of a stylus portion 91 according to the second embodiment. As shown in fig. 8, the function and function of the plurality of contact pins:

the first contact pin 911, a first mounting detection contact pin, is connected to a mounting detection circuit in the printer, and can detect whether the ink cartridge is correctly mounted in the holding portion.

Second contact pins 912: and the reset contact pin is connected with a reset circuit in the printer.

Third contact pins 913: and the clock contact pin is connected with a clock circuit in the printer.

Fourth contact pins 914: the second mounting detection contact pin is connected to a mounting detection circuit in the printer, and can detect whether the ink cartridge is correctly mounted in the holding portion.

The fifth contact pin 915: the first high voltage contact pin is connected to a high voltage circuit in the printer, and the high voltage circuit has a voltage much higher than that of the other circuits, and the voltage applied to the fifth contact pin 915 is also much higher than that of the other contact pins.

Sixth contact pin 916: and the power supply contact pin is connected with a power supply circuit in the printer.

A seventh contact pin 917: and the grounding contact pin is connected with a grounding circuit in the printer.

Eighth contact pin 918: and the data contact pin is connected with a data circuit in the printer.

Ninth contact pin 919: the second high voltage contact pin is connected to a high voltage circuit in the printer, and the high voltage circuit has a much higher voltage than other circuits, and the voltage applied to the ninth contact pin 919 is also much higher than the voltages of other contact pins.

The first group of contact pins comprises a second contact pin 912, a third contact pin 913, a sixth contact pin 916, a seventh contact pin 917, an eighth contact pin 918. The function of each of the first group of contact pins may be different from the above function, and the number of the first group of contact pins may be different from the above function. As long as the electrical connection and the electrical signal transmission between the chip and the holding portion can be satisfied. The voltage applied to the first set of contact pins is a low voltage.

The second group of contact pins comprises a fifth contact pin 915 and a ninth contact pin 919. The high-voltage circuit may be used to detect the amount of ink or to detect whether the ink cartridge is properly mounted in the holding portion. There may be a plurality of mounting detection circuits or one mounting detection circuit. The plurality of mounting detection circuits can detect whether the ink cartridge is correctly mounted in the holding portion by different positions and different orientations. In addition, the plurality of mounting detection circuits may detect the mounting in different states at different stages.

The third group of contact pins comprises a first contact pin 911 and a fourth contact pin 914. The voltage applied to the contact pins of the third group is a low voltage.

As shown in fig. 8, the open ends 985a, 989a of the fifth and

ninth grooves

985, 989 corresponding to the second group of contact pins (i.e., high voltage contact pins) are located on the + Z axis side of the closed ends 985b, 989 b. The fifth contact pin 915 is located in the + Z direction of the closed end 985b, and the ninth contact pin 919 is located in the + Z direction of the closed end 989 b. Each of the other contact pins (the first group of contact pins and the third group of contact pins) is located in the-Z-axis direction of the closed end at the opening end of the corresponding groove, and each of the other contact pins is located in the-Z-axis direction of the corresponding closed end. Taking the first contact pin 911 as an example, the open end 981a of the first groove 981 corresponding to the first contact pin 911 is located on the-Z axis side of the closed end 981b, and the first contact pin 911 is located in the-Z axis direction of the closed end 981 b.

The first portion 915a of the fifth contact pin 915 has a slope 915a1 in the + Z-axis direction; the ninth contact pin 919 has a first part 919a with a slope 919a1 in the + Z direction. The chip of the ink cartridge is in contact with the inclined portions 915a1, 919a1 of the second group of contact pins (i.e., high voltage contact pins), and when the chip is separated from the contact pin portions 91, the chip is directly separated from the inclined portions 915a1, 919a1, i.e., the chip does not generate a force in the + Z axis direction on the fifth contact pins 915 and the ninth contact pins 919, so that the contact pins are not separated from the contact pin portions.

Each contact pin in other contact pins is located on the-Z-axis direction of the corresponding closed end, so that the structure can prevent the contact pins from being separated from the contact pin part when the other contact pins are subjected to a force in the + Z-axis direction, and the electrical connection between the ink box and the printer is ensured.

The other contact pin first portions 911a-914a, 916a-918a are located in the + Z direction of the

first portion

915a, 919a of the second group of contact pins, i.e. the high voltage contact pins. By keeping the

first portions

915a, 919a of the second group of contact pins (i.e. the high voltage contact pins) away from the first portions 911a-914a, 916a-918a of the other contact pins, the possibility of short circuits between the second group of contact pins (i.e. the high voltage contact pins) and the other contact pins is avoided, and the safety and stability of the electrical connection between the ink cartridge and the printer are further ensured. At the same time, the first portion of the contact pins is protruding with respect to the base 910, while the third portion is not protruding with respect to the base 910, further avoiding the possibility of short circuits between the second group of contact pins (i.e. the high voltage contact pins) and the other contact pins.

In addition, the first portion 911a-919a of the plurality of contact pins may be arranged in two rows in the Z-axis direction, with the second group of contact pins being located in the second row simultaneously with the sixth, seventh and eighth contact pins 916, 917, 918. The beneficial effect of this patent also can be reached.

The rest is consistent with the embodiment.

EXAMPLE III

Unlike the second embodiment, the open ends 985a, 989a of the fifth and

ninth grooves

985, 989 corresponding to the second group of contact pins (i.e., high voltage contact pins) are located on the-Z axis side of the closed ends 985b, 989 b. The fifth contact pin 915 is located in the-Z direction of the closed end 985b and the ninth contact pin 919 is located in the-Z direction of the closed end 989 b. Each of the other contact pins (the first group of contact pins and the third group of contact pins) is located at the open end of the corresponding groove in the + Z-axis direction of the closed end, and each of the other contact pins is located at the + Z-axis direction of the corresponding closed end. Taking the first contact pin 911 as an example, the open end 981a of the first groove 981 corresponding to the first contact pin 911 is located on the + Z axis side of the closed end 981b, and the first contact pin 911 is located in the + Z axis direction of the closed end 981 b.

The other contact pins have inclined portions in the + Z-axis direction on the first portions thereof. The chip of the ink box is contacted with the inclined parts of other contact pins, and when the chip is separated from the contact pin part 91, the chip is directly separated from the inclined parts of other contact pins, namely the chip can not generate force in the + Z-axis direction to other contact pins, and the contact pins can not be separated from the contact pin part.

Each contact pin in the high-voltage contact pin is located on the-Z axis direction of the corresponding closed end, so that the structure can prevent the contact pin from being separated from the contact pin part when the high-voltage contact pin is subjected to a force in the + Z axis direction, and the electrical connection between the ink box and the printer is ensured.

The

first sections

915a, 919a of the second group of contact pins (i.e. the high voltage contact pins) are located in the + Z direction of the first sections 911a-914a, 916a-918a of the other contact pins. By keeping the

first portions

In addition, the first portions 911a-919a of the plurality of contact pins may be arranged in two rows in the Z-axis direction, which also achieves the advantageous effects of this patent.

The rest is consistent with the embodiment.

Example four

Function and function of the partial contact pins:

the first contact pin 911, a first short detection contact pin, is connected to a short detection circuit in the printer, and can detect whether a high voltage is connected to the short detection circuit.

Fourth contact pins 914: and a second short detection contact pin connected with a short detection circuit in the printer, and capable of detecting whether the high voltage is connected with the short detection circuit.

As shown in fig. 9, the open ends 985a, 989a, 981a, 984a of the fifth recess 985, ninth recess 989, first recess 981, and fourth recess 914 corresponding to the second group of contact pins (i.e., high voltage contact pins) and the third group of contact pins are located on the + Z axis side of the closed ends 985b, 989b, 981b, 984 b. The fifth contact pin 915 is located in the + Z direction of the closed end 985b, the ninth contact pin 919 is located in the + Z direction of the closed end 989b, the first contact pin 911 is located in the + Z direction of the closed end 981b, and the fourth contact pin 914 is located in the + Z direction of the closed end 984 b. Each contact pin in the first group of contact pins is located in the Z-axis direction of the closed end at the opening end of the corresponding groove, and each contact pin in the first group of contact pins is located in the Z-axis direction of the corresponding closed end. Taking the first contact pin 911 as an example, the open end 981a of the first groove 981 corresponding to the first contact pin 911 is located on the-Z axis side of the closed end 981b, and the first contact pin 911 is located in the-Z axis direction of the closed end 981 b.

The

first portions

915a, 919a, 911a, 914a of the fifth, ninth, and fourth contact pins 915, 919, 911 and 914 have inclined portions 915a1, 919a1, 911a1 and 914a1 in the + Z-axis direction. The chip of the ink cartridge is in contact with the second group of contact pins (i.e., high-voltage contact pins) and the inclined portions 915a1, 919a1, 911a1 and 914a1 of the third group of contact pins, and when the chip is separated from the contact pin portion 91, the chip is directly separated from the inclined portions 915a1, 919a1, 911a1 and 914a1, that is, the chip does not generate a force in the + Z axis direction on the fifth contact pin 915, the ninth contact pin 919, the first contact pin 911 and the fourth contact pin 914, and the contact pins are not separated from the contact pin portion.

Each contact pin in the first group of contact pins is located on the-Z-axis direction of the corresponding closed end, so that the structure can prevent the contact pins from being separated from the contact pin part when other contact pins are subjected to a force in the + Z-axis direction, and the electrical connection between the ink box and the printer is ensured.

The first contact pin 911 and the fourth contact pin 914 may have a mounting detection function at the same time.

The rest is the same as the second embodiment.

EXAMPLE five

FIG. 10 is a schematic view of a stylus portion according to the fifth embodiment. As shown in fig. 10, the first group of contact pin first portions 912a-913a, 916a-918a lie in the + Z direction of the second group of contact pins (i.e. the high voltage contact pins) and the third group of contact pins

first portions

915a, 919a, 911a, 914 a. By spacing the

first portions

915a, 919a of the second set of contact pins (i.e. the high voltage contact pins) away from the first portions 912a-913a, 916a-918a of the first set of contact pins, the possibility of a short circuit between the second set of contact pins (i.e. the high voltage contact pins) and the first set of contact pins is avoided, and the safety and stability of the electrical connection between the ink cartridge and the printer is further ensured. At the same time, the first portion of the contact pins is protruding with respect to the base 910, while the third portion is not protruding with respect to the base 910, further avoiding the possibility of a short circuit between the second group of contact pins (i.e. the high voltage contact pins) and the first group of contact pins.

The first portions 911a-919a of the plurality of contact pins are arranged in four rows in the Z-axis direction. The first row, the second row, the third row and the fourth row are arranged in sequence from the + Z axis direction to the-Z axis direction. The first portions 912a of the second contact pins 912 and the first portions 913a of the third contact pins 913 are located in the first row; the first portion 916a of the sixth contact pin 916, the first portion 917a of the seventh contact pin 917, and the first portion 918a of the eighth contact pin 918 are in the second row; the first portion 911a of the first contact pin 911 and the first portion 914a of the fourth contact pin 914 are located in the third row; the

first sections

915a and 919a of the fifth and ninth contact pins 915 and 919 are in the fourth row.

Further, the first contact pin 911 and the fourth contact pin 914 have a short circuit detection function, when foreign matters or ink fall between the contact pins, the first contact pin 911 and the fourth contact pin 914 can detect that a short circuit condition occurs between the high-voltage contact pin and the high-voltage contact pin, and the printer circuit is disconnected, so that the ink cartridge, the chip and the printer are prevented from being damaged, and the possibility of a short circuit between the second group of contact pins (namely the high-voltage contact pins) and the first group of contact pins is avoided.

The rest corresponds to example four.

EXAMPLE six

FIG. 11 is a schematic view of a stylus portion according to the sixth embodiment. As shown in fig. 11, each of the plurality of contact pins is located in the-Z direction of the corresponding closed end. Taking the first contact pin 911 as an example, the open end 981a of the first groove 981 corresponding to the first contact pin 911 is located on the-Z axis side of the closed end 981b, and the first contact pin 911 is located in the-Z axis direction of the closed end 981 b. The structure can prevent the contact pin from being separated from the contact pin part when the contact pin is subjected to the force in the + Z-axis direction, and ensures the electrical connection between the ink box and the printer.

The first portions 911a-919a of the plurality of contact pins are arranged in two rows in the Z-axis direction. The first row and the second row are arranged in sequence from the + Z axis direction to the-Z axis direction. The first portion 911a of the first contact pin 911, the first portion 912a of the second contact pin 912, the first portion 913a of the third contact pin 913, and the first portion 914a of the fourth contact pin 914 are located in a first row; the first portion 916a of the sixth contact pin 916, the first portion 917a of the seventh contact pin 917, the first portion 918a of the eighth contact pin 918, the first portion 915a of the fifth contact pin 915, and the first portion 919a of the ninth contact pin 919 are in the second row.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A holding portion for mounting an ink cartridge; the holding portion has one or more contact pin portions; the stylus portion has: a plurality of contact pins, a plurality of grooves corresponding to the plurality of contact pins, and a base; the groove is arranged on the base; the groove has: an open end, a closed end on the opposite side of the open end, the stylus being mounted into the recess from the open end;

the method is characterized in that:

a direction in which the ink cartridge is mounted to the holding portion is taken as a-Z-axis direction, the Z-axis direction being perpendicular to the bottom wall of the holding portion; at least one of the contact pins is located in the-Z direction of the corresponding closed end.

2. The holder according to claim 1, wherein the contact pins include a high voltage contact pin, a short circuit detection contact pin, and a low voltage contact pin, the contact pins having first portions protruding from the base, the first portion of at least one of the low voltage contact pins being located in a-Z-axis direction of the closed end.

3. The holder according to claim 2, wherein the high voltage contact pin is located outside the short circuit detection contact pin in a Y-axis direction, and the short circuit detection contact pin is located outside the low voltage contact pin, and wherein the Y-axis direction is a direction in which the ink cartridges are arranged in the holder.

4. The holder according to claim 2, wherein the first portions are arranged in at least two rows in the Z-axis direction, the first portions of the high-voltage contact pins are located in a first row, and the first portions of the short-circuit detection contact pins are located in a second row, wherein the first row is located on a front end side in the-Z-axis direction;

5. The holder according to claim 4, wherein a first portion of a part of the low voltage contact pins is located on the first row and between first portions of two of the short detection contact pins;

6. The holder according to claim 2, wherein the low-voltage contact pin and the short-circuit detection contact pin are each located in a-Z-axis direction of the closed end, and first portions thereof are each located in a + Z-axis direction of the first portion of the high-voltage contact pin.

7. The holder according to claim 2, wherein the high-voltage contact pin and the short-circuit detection contact pin are both located in a + Z-axis direction of the closed end, and the low-voltage contact pin is located in a-Z-axis direction of the closed end;

8. The holder according to claim 1, wherein each of the contact pins includes an upper row of contact pins and a lower row of contact pins; the contact pin has a first portion protruding from the base; each of the upper row of contact pins is located in a-Z direction of the closed end corresponding thereto.

9. The holding portion according to any one of claims 2 to 8, wherein the first portion has an inclined portion provided in the + Z-axis direction.

10. The holder according to claim 1, wherein each of the contact pins is located in a-Z-axis direction of the corresponding closed end.

11. A printer characterized by comprising the holding portion according to any one of claims 1 to 10.