CN220947221U - Ink box chip capable of pre-eliminating static electricity, ink box and ink-jet printing equipment - Google Patents

Abstract

The utility model provides an ink box chip capable of eliminating static electricity in advance, an ink box and an ink jet printing device, wherein the ink box chip is detachably arranged on the ink box, the ink box is detachably arranged on the ink jet printing device, and the ink jet printing device is provided with a plurality of contact pins; the ink box chip is provided with a substrate, a plurality of terminals are arranged on the surface of the substrate, and the terminals are arranged in three rows from top to bottom; the plurality of terminals comprise a plurality of low-voltage terminals and a grounding terminal, the grounding terminal is provided with a main body part and a first extension part, and the first extension part is positioned below the low-voltage terminals of the upper row; in the installation direction of the ink box chip, the installation line of the low-voltage terminal of the upper row is intersected with the lower end of the first extension part at a first intersection point, the first contact point of the main body part and the grounding contact pin of the ink-jet printing equipment is a second intersection point, and the distance between the first intersection point and the second intersection point is larger than the distance between the contact pins of the upper row and the contact pins of the lower row in the installation direction. The utility model can eliminate static electricity on the contact pin in advance and avoid damaging the ink box chip.

Description

Ink box chip capable of pre-eliminating static electricity, ink box and ink-jet printing equipment

Technical Field

The utility model relates to the technical field of ink-jet printing, in particular to an ink box chip capable of pre-eliminating static electricity, an ink box with the ink box chip and an ink-jet printing device provided with the ink box.

Background

The printing equipment is used as common office equipment, great convenience is provided for modern office, the common printing equipment is divided into ink-jet printing equipment and laser printing equipment, and the ink-jet printing equipment uses an ink box containing ink as a consumable container to jet the ink to paper so as to form characters or patterns to be printed on the paper; the laser printing device uses a toner cartridge containing toner as a consumable container to form text or patterns on a medium to be printed.

Referring to fig. 1, a conventional color inkjet printing apparatus has a housing 11, and the inkjet printing apparatus shown in fig. 1 omits a pallet of the housing 11. The housing 11 is provided with a movement 12 of the ink jet printing apparatus and with a slide along which a carriage 14 reciprocates under the drive of a motor (not visible in fig. 1). A main control circuit board (not visible in fig. 1) is provided in the carriage 14, and communicates with the movement 12 through the flat cable 13.

The carriage 14 is detachably provided with a plurality of ink cartridges 15, and different ink cartridges 15 contain different colors of ink. The structure of the ink cartridge 15 is shown in fig. 2. The ink cartridge 15 has a cartridge body 16, the cartridge body 16 encloses a chamber for accommodating ink, an ink outlet 17 is provided at the lower end of the chamber, and ink in the chamber flows out through the ink outlet 17 and is supplied to an ink supply needle of the carriage 14.

A chip 18 is mounted on the outer wall of the case 16 of the ink cartridge 15, the chip 18 having a substrate provided with a plurality of connection terminals 19 on one side thereof for electrical connection with contact pins on the carriage 14. The other side of the substrate is provided with a memory (not visible in fig. 2), typically a non-volatile memory, such as an EEPROM or FLASH, which stores information related to the ink cartridge, including variable information, which is information that is continuously variable with the printing operation, such as information of the ink margin, the printing duration, the number of printing sheets, etc., and invariable information, which is information that is not variable with the printing operation, such as the type of the ink cartridge, the type of the applicable inkjet printing device, the color of the ink, etc.

After the ink cartridge 15 is mounted to the carriage 14 of the ink jet printing apparatus, the ink jet printing apparatus powers up the chip 18 and reads data stored in the memory of the chip 18 to determine whether the type of the ink cartridge 15 is appropriate, whether the amount of ink remaining in the ink cartridge 15 is sufficient, and the like. The ink jet printing apparatus can execute a print job only after it is judged that the type of the ink cartridge 15 is proper and that there is sufficient ink in the ink cartridge 15.

Referring to fig. 3, nine connection terminals 21, 22, 23, 24, 25, 26, 27, 28, 29 are provided on one surface of a substrate 20 of a conventional ink cartridge chip 18, and the nine connection terminals are arranged in two upper and lower rows, wherein the upper row includes four connection terminals and the lower row includes five connection terminals. The nine connection terminals include a power supply terminal, a ground terminal, a clock terminal, a data terminal, and a chip select terminal, and four detection terminals, which are two terminals 21, 24 located at left and right ends of the upper row and two connection terminals 25, 29 located at left and right ends of the lower row, respectively, and the two connection terminals 25, 29 located at left and right ends of the lower row are high voltage terminals receiving a higher voltage.

Nine contact pins are correspondingly arranged on a printing carriage of the ink-jet printing device, each contact pin is connected with one connecting terminal, the nine contact pins are also arranged into an upper row and a lower row, the number of the upper row of contact pins is four, the number of the lower row of contact pins is five, and the distance between the upper row of contact pins and the lower row of contact pins is equal to the distance between the center points of the upper row of connecting terminals and the lower row of contact pins.

When the ink cartridge is mounted to the print carriage, the ink jet printing apparatus needs to detect the ink cartridge chip 18 after the ink cartridge is mounted to the print carriage with the arrow direction shown in fig. 3 as the mounting direction, to determine whether the ink cartridge chip 18 can normally communicate with the ink jet printing apparatus. Since the connection terminals 25, 29 need to receive high voltage signals, the corresponding two contact pins on the inkjet printing apparatus will output a higher voltage. However, when the ink cartridge is mounted to the ink jet printing apparatus, the nine connection terminals of the ink cartridge chip 18 are simultaneously contacted with the nine contact pins on the ink jet printing apparatus, and if static electricity is charged on the low voltage contact pins on the ink jet printing apparatus, the low voltage connection terminals of the ink cartridge are contacted with the low voltage contact pins, which causes damage to electronic devices such as a memory of the ink cartridge chip, and thus the ink cartridge chip cannot work normally.

Disclosure of Invention

In order to solve the above-described problems, a first object of the present utility model is to provide a pre-static-eliminating ink cartridge chip capable of eliminating static electricity in advance.

A second object of the present utility model is to provide an ink cartridge having the above ink cartridge chip.

A third object of the present utility model is to provide an ink jet printing apparatus using the above ink cartridge.

In order to achieve the first object of the present utility model, the present utility model provides an ink cartridge chip capable of pre-eliminating static electricity detachably mounted to an ink cartridge, the ink cartridge detachably mounted to an ink jet printing apparatus having a plurality of contact pins arranged in two rows up and down; the lower end of the ink box is provided with an ink outlet, the ink box chip is provided with a substrate, the surface of the substrate is provided with a plurality of terminals, and the terminals are arranged into three rows from top to bottom; the plurality of terminals comprise a plurality of low-voltage terminals and a grounding terminal, the grounding terminal is provided with a main body part and a first extension part, and the first extension part is positioned below the low-voltage terminals of the upper row; in the installation direction of the ink box chip, the installation line of the upper low-voltage terminal intersects with the lower end of the first extension part at a first intersection point, the first contact point of the main body part and the grounding contact pin of the ink-jet printing equipment is a second intersection point, and the projection distance of the first intersection point and the second intersection point in the installation direction is larger than the projection distance of the upper contact pin and the lower contact pin in the installation direction of the ink-jet printing equipment.

As can be seen from the above-mentioned scheme, since the first extension portion of the ground terminal is located below the upper low-voltage terminal, and the projection between the first intersection point and the second intersection point in the installation direction is greater than the projection distance between the upper row of contact pins and the lower row of contact pins in the inkjet printer device in the installation direction, during the process of installing the ink cartridge into the inkjet printer device, the ground terminal is firstly contacted with the ground contact pins of the inkjet printer device, then all the upper four low-voltage contact pins of the inkjet printer device are short-circuited and discharged with the first extension portion of the ground terminal of the ink cartridge chip, and finally are contacted with the corresponding low-voltage terminals on the ink cartridge chip. By the arrangement, the low-voltage contact pins of the ink-jet printing equipment are connected to the low-voltage terminals corresponding to the ink box chip after being short-circuited with the grounding contact pins of the ink-jet printing equipment, so that the situation that the ink box chip is damaged by static electricity carried on the low-voltage contact pins is avoided.

Preferably, the grounding terminal further comprises a second extension part positioned below the low-voltage terminals of the lower row, the mounting line of the low-voltage terminals of the lower row intersects with the lower end of the second extension part at a third intersection point, and the projection distance between the third intersection point and the second intersection point in the mounting direction is smaller than the projection distance between the upper row of contact pins and the lower row of contact pins in the inkjet printer device in the mounting direction.

Therefore, in the process that the ink box is mounted to the ink-jet printing equipment, the 2 low-voltage contact pins of the lower row of the ink-jet printing equipment are in short circuit discharge with the second extension parts of the grounding terminals of the ink box chips and then are in contact with the lower-row low-voltage terminals of the corresponding ink box chips, so that the low-voltage contact pins of the ink-jet printing equipment are connected to the low-voltage terminals corresponding to the ink box chips after being in short circuit with the grounding contact pins of the low-voltage contact pins, and the situation that the ink box chips are damaged by static electricity carried on the low-voltage contact pins is effectively avoided.

Further, the second extension portion is provided on the surface separately from the main body portion, and the second extension portion is electrically connected to the main body portion through a wire.

Therefore, the second extension part is arranged on the ink box chip very flexibly, so that the area of the second extension part is smaller, and the ink box chip is miniaturized.

Further, the number of the low-voltage terminals of the lower row is two; the number of the second extending parts is two, and each second extending part is positioned below the low-voltage terminals of one lower row.

Therefore, the second extending parts are arranged for the low-voltage terminals of each lower row, so that the distance between the second extending parts and the low-voltage terminals of the lower row is smaller, and the influence of static electricity on the ink box chip can be effectively eliminated.

Alternatively, the second extension is connected to the body portion at a surface. Further, the second extending portion extends outwards from two side edges of the main body portion.

Therefore, the second extension part is arranged to be connected with the main body part on the surface, the arrangement of the grounding terminal is simpler, and the production cost of the ink box chip can be reduced.

Further, in the mounting direction, the extension end of the second extension portion is located below the lower end of the main body portion.

In this way, the tail end position of the second extension part is lower, so that the arrangement of the lower-row low-voltage terminals is facilitated, and the arrangement of a plurality of low-voltage terminals is more flexible.

In a further embodiment, the second intersection point is located below the second extension in the mounting direction.

Therefore, the second intersection point is located at a lower position, that is, the main body portion of the grounding terminal extends downwards to a lower position, which is favorable for increasing the projection distance of the first intersection point and the second intersection point in the installation direction, and also can reduce the projection distance of the third intersection point and the second intersection point in the installation direction.

In order to achieve the second object, the ink cartridge provided by the utility model is detachably mounted to an ink jet printing device, the ink cartridge is provided with a cartridge body, a cavity is formed in the cartridge body, ink is contained in the cavity, and an ink outlet is arranged below the cavity; the ink box chip is arranged on the outer wall of the box body.

In order to achieve the third object, the ink jet printing device provided by the utility model comprises a machine body, wherein a main control circuit board and a printing carriage are arranged in the machine body, a needle contact frame is arranged on the printing carriage, contact pins are arranged on two sides of the needle contact frame of the printing carriage, and one or more ink cartridges are arranged in the ink jet printing device.

Drawings

Fig. 1 is a structural view of a conventional ink jet printing apparatus.

Fig. 2 is a structural view of a conventional ink cartridge.

Fig. 3 is a structural diagram of a conventional ink cartridge chip.

Fig. 4 is a block diagram of a first embodiment of the ink cartridge chip and the carriage contact pin holder of the present invention.

Fig. 5 is a block diagram of a first view of a first embodiment of a cartridge chip of the present invention.

Fig. 6 is a block diagram of a second view of the first embodiment of the ink cartridge chip of the present invention.

Fig. 7 is a block diagram of a second embodiment of the ink cartridge chip of the present invention.

Fig. 8 is a block diagram of a third embodiment of the ink cartridge chip of the present invention.

Fig. 9 is a structural view of a fourth embodiment of the ink cartridge chip of the present invention.

The utility model is further described below with reference to the drawings and examples.

Detailed Description

First embodiment:

The inkjet printing device of this embodiment is provided with the organism, is formed with the printing carriage in the organism, and ink horn detachable installs in the printing carriage, and every ink horn has a box body, and the box body encloses into a cavity that holds ink, is equipped with the play ink outlet with the cavity intercommunication in the below of cavity, and the interior ink of cavity accessible goes out the ink outlet and flows into in the shower nozzle of inkjet printing device, detachably installs the ink horn chip on the ink horn front wall.

The printing carriage of the ink-jet printing equipment is provided with a needle touching frame, and the main control circuit board and the ink box are respectively arranged at two sides of the needle touching frame. Referring to fig. 4, the stylus holders 100 are provided with styli at both sides thereof, respectively, so that the ink cartridge chip 110 is in contact with the styli of the first side of the stylus holders 100, and the main control circuit board is in contact with the styli of the second side of the stylus holders 100. The contact pins on the first side of the contact pin holder 100 are arranged in two rows, four for the upper row of contact pins 101 and five for the lower row of contact pins 102.

Referring to fig. 5, the cartridge chip 110 of the present embodiment has a substrate 111, a plurality of terminals are provided on one surface of the substrate 111, and two test terminals 115 are provided at left and right ends of the uppermost end of the substrate 111, respectively, for testing the cartridge chip 110. When the cartridge chip 110 communicates with the inkjet printing apparatus, the test terminal 115 does not participate in the communication.

The base plate 111 is provided with a plurality of positioning holes 116, and the cartridge chip 110 is fixed to the front wall of the cartridge through the plurality of positioning holes 116.

The surface of the substrate 111 is provided with a plurality of terminals for electrically connecting with the contact pins of the inkjet printing apparatus, the plurality of terminals are arranged in three rows up and down, wherein the terminals of the upper row sequentially comprise terminals 121, 122, 123, 124 from left to right, the terminals of the middle row sequentially comprise terminals 125, 128 from left to right, the terminals of the lower row sequentially comprise terminals 126, 130, 127 from left to right, wherein the four terminals 121, 122, 123, 124 of the upper row are all low voltage terminals, the terminals 125, 128 of the middle row are high voltage terminals, receive higher voltage signals, the terminals 130 of the lower row are ground terminals, and the terminals 126, 127 are low voltage terminals.

As can be seen from fig. 5 and 6, the plurality of low voltage terminals 121, 122, 123, 124, 126, 127 are square or rectangular, while the high voltage terminals 125, 128 are semicircular and the ground terminal 130 is shaped. In this embodiment, the high voltage terminals 125, 128 may be edge-covered solder resist windows that communicate the front and back sides of the substrate 111, and after the ink cartridge chip 110 is mounted in place, the high voltage terminals 125, 128 are in electrical contact with the ramp portions of corresponding high voltage contact pins in the inkjet printing apparatus (not shown in the drawing). It should be noted that, in order to better illustrate the advantages of the present embodiment, the terminals shown in the drawings of the present embodiment have a certain thickness, and in fact, the thickness of all the terminals on the substrate 111 is much smaller than the thickness of the substrate 111 itself. In a preferred embodiment, the thickness of the substrate 111 may be 0.6mm to 1.0mm, while the thickness of all terminals is less than 0.05mm.

The ground terminal 130 has a main body portion 131 extending in a vertical direction, a first extension portion 132 is formed above the main body portion 131, the first extension portion 132 is arranged in a lateral direction, and the first extension portion 132 is located below the upper row terminals 121, 122, 123, 124, i.e., an extension length of the first extension portion 132 in the lateral direction needs to be greater than a length of the upper row terminals 121, 122, 123, 124 arranged in the lateral direction. Thus, a portion of the corresponding first extension 132 is located below each upper row of terminals 121, 122, 123, 124.

In addition, the ground terminal 130 further includes a second extension portion, which includes two portions, namely, second extension portions 133 and 134, respectively, as can be seen from fig. 5, on the surface of the substrate 111, the second extension portions 133 and 134 and the main body portion 131 are disposed separately from each other, but the second extension portions 133 and 134 and the main body portion 131 may be electrically connected by a metal wire or the like on the back surface of the substrate 111, so that the main body portion 131, the first extension portion 132, and the second extension portions 133 and 134 are all grounded. In this embodiment, each of the second extending portions is located below one lower row of low voltage terminals, specifically, the second extending portion 133 is located below the low voltage terminal 126, and the second extending portion 134 is located below the low voltage terminal 127.

In order to eliminate static electricity on the low-voltage contact pins of the carriage, the present embodiment specifically designs the size of each terminal on the substrate 111. Specifically, in the mounting direction of the ink cartridge chip 110, the mounting line of the upper low-voltage terminal intersects the lower end of the first extension 132 at a first intersection point, the first contact point of the main body 131 and the ground contact pin of the inkjet printing apparatus is a second intersection point, and the projection distance between the first intersection point and the second intersection point in the mounting direction is greater than the projection distance between the upper contact pin and the lower contact pin in the mounting direction of the inkjet printing apparatus.

For example, in the direction of fig. 6, the mounting direction of the cartridge chip 110 is the top-down direction, and the low-voltage terminal 121 on the left side of the upper row is exemplified, and the mounting line of the low-voltage terminal 121 is a line passing through the center of the low-voltage terminal 121 and extending in the mounting direction, i.e., L1 in fig. 6. Therefore, the mounting line of the low voltage terminal 121 intersects the first extension 131 of the ground terminal 130 at point a, that is, point a is the first intersection. In addition, when the cartridge chip 110 is mounted, the position where the ground terminal 130 first contacts the ground stylus of the inkjet printing apparatus is the G point, and thus, the projection distance between the a point and the G point in the mounting direction is D11.

In the inkjet printer apparatus, the projection distance between the upper row of contact pins and the lower row of contact pins in the mounting direction is the distance between the center points of the upper and lower rows of low voltage terminals, and as shown in fig. 6, the projection distance between the center point of the low voltage terminal 122 and the center point of the low voltage terminal 126 in the mounting direction may be taken as the projection distance D10 between the upper row of contact pins and the lower row of contact pins in the mounting direction. In this embodiment, the projection distance D11 between the point a and the point G in the mounting direction is greater than the projection distance D10 between the upper row of contact pins and the lower row of contact pins in the mounting direction.

Accordingly, the mounting line of the low voltage terminal 122 intersects the first extension 131 of the ground terminal 130 at point B, the projected distance between point B and point G in the mounting direction is D12, and the projected distance between point B and point G in the mounting direction is D12 greater than the projected distance between the upper row of contact pins and the lower row of contact pins in the mounting direction D10.

Similarly, the mounting line of the low voltage terminal 123 intersects the first extension 131 of the ground terminal 130 at point C, the projected distance between point C and point G is D13 in the mounting direction, and the projected distance D13 between point C and point G in the mounting direction is greater than the projected distance D10 between the upper row of contact pins and the lower row of contact pins in the mounting direction. The mounting line of the low voltage terminal 124 intersects the first extension 131 of the ground terminal 130 at a point D, a projected distance between the point D and the point G in the mounting direction is D14, and the projected distance D14 between the point D and the point G in the mounting direction is greater than the projected distance D10 between the upper row of contact pins and the lower row of contact pins in the mounting direction.

In addition, in the present embodiment, for the low-voltage terminals of the lower row, the mounting line of the low-voltage terminals of the lower row intersects the lower end of the second extension portion at a third intersection point, and the projection distance of the third intersection point and the second intersection point in the mounting direction is smaller than the projection distance of the upper row of contact pins and the lower row of contact pins in the inkjet printer device in the mounting direction. Specifically, taking the low voltage terminal 126 of the lower row as an example, the mounting line of the low voltage terminal 126 is a line passing through the center of the low voltage terminal 126 and extending in the mounting direction, and the mounting line of the low voltage terminal 126 intersects the second extension 133 of the ground terminal 130 at point E, that is, point E is a third intersection point. As can be seen from fig. 6, the projected distance between the E point and the G point in the mounting direction is D15. In this embodiment, the projection distance D15 between the point E and the point G in the mounting direction is smaller than the projection distance D10 between the upper row of contact pins and the lower row of contact pins in the mounting direction, and the projection of the point E in the mounting direction is located between the point G and the projection of the low voltage terminal 126 in the mounting direction.

Accordingly, the mounting line of the low voltage terminal 127 intersects the second extension 134 of the ground terminal 130 at point F, that is, point F is the third intersection, and the projection distance between point F and point G in the mounting direction is D16. In this embodiment, the projection distance D16 between the point F and the point G in the mounting direction is smaller than the projection distance D10 between the upper row of contact pins and the lower row of contact pins in the mounting direction, and the projection of the point F in the mounting direction is located between the point G and the projection of the low voltage terminal 127 in the mounting direction.

As can be seen from fig. 5 and 6, the second intersection point G is located at the lower end of the main body 131, and the projection distance from the intersection point of the mounting line of each upper row of low voltage terminals 121, 122, 123, 124 and the lower end of the first extension 131 or the lower end of the second extension 133, 134 to the G point is greater than the projection distance D10 of the upper row of contact pins and the lower row of contact pins of the inkjet printing apparatus in the mounting direction, which is advantageous for the ground contact pins of the inkjet printing apparatus to be brought into contact with the ground terminal 130 first, thereby achieving the elimination of static electricity as soon as possible.

During the ink cartridge mounting process, although the four contact pins 101 of the upper row of the carriage are preferably in physical contact with the substrate 111, the nearest intersection points of the four mounting lines corresponding to the four contact pins 101 with any terminal on the substrate 111 are located above the lower row of low voltage terminals 126, 127 of the substrate 111, so that the four contact pins 101 are not in electrical contact with any terminal at this time; as the ink cartridge continues to be mounted downward, the three low-voltage contact pins in the middle of the contact pins 102 of the lower row of the carriage also come into physical contact with the substrate 111, but since the projected distance from the point of intersection of the mounting line of the low-voltage terminals 121, 122, 123, 124 of each upper row with the lower end of the first extension 131 or the lower end of the second extension 133, 134 to the point G in the mounting direction is larger than the projected distance D10 of the contact pins of the upper row with the contact pins of the lower row of the ink jet printing apparatus in the mounting direction, and the projection of the point G in the mounting direction is lower than the points E and F, the ground contact pins on the carriage are brought into electrical contact with the ground terminals on the substrate 111 earlier than the other contact pins.

In this arrangement, during the process of mounting the ink cartridge to the ink jet printing apparatus, the ground terminal 130 is first brought into contact with the ground contact pins of the ink jet printing apparatus, and then the upper four low voltage contact pins of the ink jet printing apparatus are short-circuited to the first extension 132 of the ground terminal 130 of the ink cartridge chip and then brought into contact with the corresponding low voltage terminals 121, 122, 123, 124 on the ink cartridge chip 110. Accordingly, both low voltage contact pins of the lower row of the inkjet printing apparatus are short-circuited to the second extension portions 133, 134 of the ground terminal 130 of the cartridge chip and then contact the lower voltage terminals 126, 127 of the corresponding cartridge chip, so that the low voltage contact pins of the inkjet printing apparatus are short-circuited to their own ground contact pins and then connected to the corresponding low voltage terminals of the cartridge chip. It can be seen that the low-voltage contact pins of the ink-jet printing device are firstly short-circuited with the grounding contact pins of the ink-jet printing device and then connected to the low-voltage terminals corresponding to the ink box chip, so that the situation that the ink box chip is damaged by static electricity carried on the low-voltage contact pins is avoided.

Second embodiment:

Referring to fig. 7, the ink cartridge chip 200 of the present embodiment has a substrate 210, a plurality of terminals are provided on one surface of the substrate 210, the plurality of terminals are arranged in three rows up and down, wherein the terminals of the upper row sequentially include terminals 221, 222, 223, 224 from left to right, the terminals of the middle row include terminals 225, 228, the terminals of the lower row sequentially include terminals 226, 230, 227 from left to right, wherein the four terminals 221, 222, 223, 224 of the upper row are all low voltage terminals, the terminals 225, 228 of the middle row are high voltage terminals, the terminals receiving a higher voltage signal, and the terminals 230 are ground terminals, and the terminals 226, 227 of the lower row are low voltage terminals.

The plurality of low voltage terminals 221, 222, 223, 224, 226, 227 are square or rectangular, while the high voltage terminals 225, 228 are semicircular, and the ground terminal 230 is shaped, having a main body portion 231 extending in the vertical direction, a first extending portion 232 is formed above the main body portion 231, the first extending portion 232 is arranged in the lateral direction, and the first extending portion 232 is located below the upper row of terminals 221, 222, 223, 224.

As in the first embodiment, in the mounting direction of the cartridge chip 200, the mounting line of the low-voltage terminal of the upper row intersects the lower end of the first extension 232 at a first intersection point, the first contact point of the main body 231 with the ground contact pin of the inkjet printing apparatus is a second intersection point, and the projected distance of the first intersection point and the second intersection point in the mounting direction is greater than the projected distance of the contact pin of the upper row and the contact pin of the lower row in the mounting direction of the inkjet printing apparatus.

Unlike the first embodiment, the grounding terminal 230 of the present embodiment is not provided with the second extension portion, but due to the provision of the first extension portion 232, static electricity of the upper row of contact pins can be effectively eliminated by the first extension portion 232, and damage to the memory and the like in the ink cartridge chip 200 caused by static electricity through the upper row of low voltage terminals 221, 222, 223, 224 is avoided. A ground pad may be provided under the low voltage terminals 226, 227 to pre-dissipate static electricity on the lower row of contact pins (the pad is not shown).

Third embodiment:

Referring to fig. 8, the cartridge chip 300 of the present embodiment has a substrate 310, on one surface of the substrate 310, a plurality of terminals are provided, the plurality of terminals are arranged in three rows up and down, wherein the terminals of the upper row sequentially include terminals 321, 322, 323, 324 from left to right, the terminals of the middle row include 325, 328, the terminals of the lower row sequentially include 326, 330, 327 from left to right, wherein the four terminals 321, 322, 323, 324 of the upper row are all low voltage terminals, the terminals of the middle row 325, 328 are high voltage terminals, receive a higher voltage signal, the terminals 330 are ground terminals, and the terminals of the lower row 326, 327 are low voltage terminals.

The plurality of low voltage terminals 321, 322, 323, 324, 326, 327 are square or rectangular, and the high voltage terminals 325, 328 are semicircular, and the ground terminal 330 is shaped, having a main body portion 331 extending in a vertical direction, a first extending portion 332 is formed above the main body portion 331, the first extending portion 332 is arranged in a lateral direction, and the first extending portion 332 is located below the upper row of terminals 321, 322, 323, 324.

As in the first embodiment, in the mounting direction of the cartridge chip 300, the mounting line of the low-voltage terminal of the upper row intersects the lower end of the first extending portion 332 at a first intersection point, the first contact point of the main body portion 331 with the ground contact pin of the inkjet printing apparatus is a second intersection point, and the projected distance of the first intersection point and the second intersection point in the mounting direction is larger than the projected distance of the contact pin of the upper row and the contact pin of the lower row in the mounting direction of the inkjet printing apparatus.

Unlike the first embodiment, the second extension portion 333 of the ground terminal 330 of the present embodiment is not provided separately from the main body portion 331 but is connected to the surface of the substrate 310, and as can be seen from fig. 8, the second extension portion 333 extends outwardly from both side edges of the main body portion 331, and the extension end of the second extension portion 333 is located below the lower end of the main body portion 331 in the mounting direction of the ink cartridge to the ink jet printing apparatus. In addition, the mounting line of the low-voltage terminal of the lower row intersects with the lower end of the second extension part at a third intersection point, and the projection distance of the third intersection point and the second intersection point in the mounting direction is smaller than the projection distance of the contact pins of the upper row and the contact pins of the lower row in the mounting direction of the ink-jet printer device.

In this embodiment, although the ground contact pin on the carriage is not first electrically contacted with any terminal on the substrate 310, when the ground contact pin on the carriage is electrically contacted with the ground terminal on the substrate 310, the other low-voltage contact pins except the ground contact pin on the carriage are also simultaneously positioned on the first extension 332 or the second extension 333 of the ground terminal 330, and the other low-voltage contact pins except the ground contact pin are electrically connected to the corresponding terminal after being short-circuited with the ground contact pin through the first extension 332 or the second extension 332 of the ground terminal 330 during installation, which also plays a role of eliminating static electricity in advance.

Fourth embodiment:

Referring to fig. 9, the cartridge chip 400 of the present embodiment has a substrate 410, on one surface of which a plurality of terminals are provided, the plurality of terminals are arranged in three rows up and down, wherein the terminals of the upper row sequentially include terminals 421, 422, 423, 424 from left to right, the terminals of the middle row include terminals 425, 428, and the terminals of the lower row sequentially include terminals 426, 430, 427 from left to right, wherein the four terminals 421, 422, 423, 424 of the upper row are all low voltage terminals, the terminals 425, 428 of the middle row are high voltage terminals, receive a higher voltage signal, the terminals 430 are ground terminals, and the terminals 426, 427 of the lower row are low voltage terminals.

Unlike the third embodiment, the ground terminal 430 has a main body portion 431, a first extension portion 432, and a second extension portion 433, and the shape of the second extension portion 433 of the ground terminal 430 of the present embodiment is slightly changed. The technical effects of the present embodiment are the same as those of the third embodiment, and will not be described in detail here.

The above is only a specific embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and the above is only an embodiment adopted for the purpose of facilitating understanding of the present utility model, and is not limited thereto. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims. Therefore, the protection scope of the present utility model shall be subject to the scope defined by the claims.

Claims (10)

1. An ink box chip capable of pre-eliminating static electricity and detachably mounted on an ink box, wherein the ink box is detachably mounted on an ink-jet printing device, the ink-jet printing device is provided with a plurality of contact pins, and the contact pins are arranged in an upper row and a lower row;

The ink box chip is provided with a substrate, a plurality of terminals are arranged on the surface of the substrate, and the terminals are arranged in three rows from top to bottom;

The method is characterized in that:

The plurality of terminals comprise a plurality of low-voltage terminals and a grounding terminal, the grounding terminal is provided with a main body part and a first extension part, and the first extension part is positioned below the low-voltage terminals of the upper row;

In the installation direction of the ink box chip, the installation line of the low-voltage terminal of the upper row intersects with the lower end of the first extension part at a first intersection point, the first contact point of the main body part and the grounding contact pin of the ink-jet printing equipment is a second intersection point, and the projection distance of the first intersection point and the second intersection point in the installation direction is larger than the projection distance of the upper row contact pin and the lower row contact pin in the ink-jet printing equipment in the installation direction.

2. The cartridge chip of claim 1, wherein:

The grounding terminal further comprises a second extension part positioned below the low-voltage terminal of the lower row, a mounting line of the low-voltage terminal of the lower row intersects with the lower end of the second extension part at a third intersection point, and the projection distance of the third intersection point and the second intersection point in the mounting direction is smaller than that of the upper row contact pins and the lower row contact pins in the inkjet printer device.

3. The cartridge chip of claim 2, wherein:

The second extension portion is provided on the surface separately from the main body portion, and the second extension portion is electrically connected to the main body portion through a wire.

4. A cartridge chip as claimed in claim 3, wherein:

The number of the low-voltage terminals of the lower row is two;

The number of the second extending parts is two, and each second extending part is positioned below the low-voltage terminal of one lower row.

5. The cartridge chip of claim 2, wherein:

The second extension is connected to the body portion on a surface.

6. The cartridge chip of claim 5, wherein:

the second extension part extends outwards from two side edges of the main body part.

7. The cartridge chip of claim 6, wherein:

In the mounting direction, the extension end of the second extension portion is located below the lower end of the main body portion.

8. The cartridge chip of any one of claims 2 to 7, wherein:

in the mounting direction, the second intersection point is located below the second extension portion.

9. An ink cartridge detachably mountable to an inkjet printing apparatus, the ink cartridge comprising:

The ink box comprises a box body, wherein a cavity is formed in the box body, ink is contained in the cavity, and an ink outlet is formed below the cavity;

The method is characterized in that:

An ink cartridge chip as claimed in any one of claims 1 to 8 is provided on an outer wall of the cartridge body.

10. The inkjet printing device comprises a machine body, a main control circuit board and a printing carriage are arranged in the machine body, a needle contacting frame is arranged on the printing carriage, contact pins are arranged on two sides of the needle contacting frame of the printing carriage, and the inkjet printing device is characterized in that:

the ink jet printing apparatus having one or more ink cartridges according to claim 9 mounted therein.