CN201120774Y - Ink cartridge chip and ink cartridge - Google Patents

Abstract

The utility model provides an ink box chip and an ink box. The ink box chip comprises a base plate, a microcontroller arranged on the base plate and a plurality of contact points connected with the lead foot of the microcontroller on the base plate. The ink box chip comprises at least a button switch, one end of the button switch is connected with a power source contact point, and the other end is connected with the lead foot of the microcontroller, the height along the thickness direction of the base plate of the top end of the button of the button switch is larger than the height along the thickness direction of the contact point. The ink box chip provided by the utility model has the advantages of effectively preventing the damage of the microcontroller of the ink box chip resulted from the supplied working voltage from the printer to the ink box chip when the contact points of the ink box chip are not completely contacted with the corresponding elasticity contact points of the printer.

Description

Ink box chip and print cartridge

Technical field

The utility model relates to a kind of ink box chip, especially a kind of ink box chip that ink box chip damages and print cartridge that this ink box chip is installed of effectively preventing.

Background technology

Printer is a kind of common office equipment, and existing printer is used dismountable print cartridge mostly, and it is installed on the ink-cases of printers carriage, provides printing ink to printer, and with ink jet to recording medium.Existing print cartridge is equipped with ink box chip mostly, and this ink box chip comprises a substrate, is provided with the microcontroller of a storage printing ink relevant information on substrate, also is provided with a plurality of contacts that link to each other with the microcontroller pin on the substrate.When print cartridge was installed on the printer, the resilient contact on these contacts and the printer formed and is electrically connected, and printer provides operating voltage to ink box chip, and the ink box chip microcontroller is started working.

In the printer course of work, the repeated disassembled and assembled owing to change print cartridge, or when running into adverse circumstances such as humidity, high temperature, resilient contact flexibility decrease on the ink-cases of printers carriage, thereby cause under ink box chip contact and situation that the printer resilient contact does not contact fully, printer provides operating voltage to the ink box chip microcontroller, may damage the ink box chip microcontroller, even causes damaging the control circuit of printer.

Summary of the invention

Main purpose of the present utility model provides a kind of can effectively prevent from not contact fully because of the corresponding resilient contact of ink box chip contact and printer the time, and printer provides operating voltage to ink box chip and the ink box chip that causes the ink box chip microcontroller to damage;

Another purpose of the present utility model provides a kind of print cartridge that uses above-mentioned ink box chip.

In order to realize above-mentioned main purpose, the utility model provides a kind of ink box chip, and it comprises: a substrate; Be arranged on the microcontroller on the described substrate; Be positioned at a plurality of contacts that link to each other with the microcontroller pin on the substrate; Ink box chip comprises at least one press button, and press button one end links to each other with power contact, and the other end links to each other with the microcontroller power pins.The contact position on the top of press button button is an ink-cases of printers carriage sidewall, press button button top along the height on the substrate thickness direction greater than the contact along the height on the substrate thickness direction.

Print cartridge is packed in the process of ink-cases of printers carriage, box portion bottom wall contacts in the ink-cases of printers carriage at first near the ink supply port part, the ink box chip contact at first contacts with resilient contact, and the button top of press button does not also touch ink-cases of printers carriage sidewall at this moment.Further in place along with print cartridge, resilient contact is subjected to the extruding of ink box chip contact and shrinks, the top of press button button begins to contact with ink-cases of printers carriage sidewall, if the resilient contact flexibility decrease on the ink cartridge carrier, elastic shrinkage can not take place in resilient contact when being squeezed, therefore have only the part contact to contact, and press button is owing to the extruding that is not subjected to ink-cases of printers carriage sidewall keeps off-state with the printer resilient contact.Even this moment, printer provided operating voltage to ink box chip, the ink box chip microcontroller can not worked yet.Compared with prior art, the ink box chip that provides of the utility model can prevent under the situation of printer resilient contact and ink box chip poor contact of contacts the ink box chip microcontroller applied voltage and the situation of damaging the ink box chip microcontroller takes place.

In order to realize above-mentioned another purpose, the print cartridge that the utility model provides comprises: housing; The ink cavity that surrounds by housing; Be arranged on the ink supply port of ink cavity bottom; Be installed in the ink box chip on sidewall of housing; Ink box chip comprises a substrate; Be arranged on the microcontroller on the substrate; Be positioned at a plurality of contacts that link to each other with the microcontroller pin on the substrate; Ink box chip comprises a press button, and press button one end links to each other with power contact, and the other end links to each other with the microcontroller power pins, and the top of this press button button is greater than the contact along the height on the substrate thickness direction along the height on the substrate thickness direction.Because print cartridge is changed repeatedly, or run into adverse circumstances such as humidity, high temperature, resilient contact flexibility decrease on the ink-cases of printers carriage, when being installed to printer, print cartridge may have only the part contact to contact with the printer resilient contact, this moment, press button was owing to the extruding that is not subjected to ink-cases of printers carriage sidewall keeps off-state, even this moment, printer provided operating voltage to ink box chip, the ink box chip microcontroller can not worked yet.

Compared with prior art, the print cartridge that the utility model provides can prevent that ink box chip from contacting bad and the situation generation damage ink box chip with printer, strengthened the reliability of print cartridge under the situation of printer resilient contact flexibility decrease.

Description of drawings

Fig. 1 is the electrical schematic diagram of ink box chip in the prior art;

Fig. 2 is the electrical schematic diagram of the utility model ink box chip first embodiment;

Fig. 3 is the surface structure schematic diagram of the utility model ink box chip first embodiment;

Fig. 4 is that the utility model print cartridge embodiment is installed in first state diagram on the ink-cases of printers carriage;

Fig. 5 is that the utility model print cartridge embodiment is installed in second state diagram on the ink-cases of printers carriage;

Fig. 6 is the electrical schematic diagram of the utility model ink box chip second embodiment.

The specific embodiment

Followingly ink box chip embodiment and print cartridge embodiment are described in detail with reference to accompanying drawing.

Fig. 1 is the electrical schematic diagram of ink box chip in the prior art, and microcontroller 10 includes a plurality of pins, and these pins are connected respectively to the contact on the ink box chip substrate.Contact on the ink box chip substrate comprises a power contact 11, clock contact 12, earthing contact 13 etc.

Fig. 2 is the electrical schematic diagram of the utility model ink box chip first embodiment.Difference with the prior art is, ink box chip also comprises a press button 20, press button 20 1 ends connect the power contact 11 of ink box chip, and the other end connects microcontroller power pins Vcc, and press button 20 is connected between power contact 11 and the microcontroller power pins Vcc.This press button 20 is in on-state under situation about being under pressure, microcontroller power pins Vcc and ink box chip power contact 11 are connected.

Fig. 3 is the surface structure schematic diagram of the utility model ink box chip first embodiment.Ink box chip comprises a substrate 35, and the recess 36 and the through hole 37 that are used for locating are arranged on the substrate.A plurality of contacts of contacting with the printer resilient contact of being used for are arranged, comprising a power contact 11 on the ink box chip substrate.Contact on the chip roughly is divided into two rows, above a row for contact 35-1, below a row for contact 35-2, one press button 20 is arranged on the ink box chip substrate, press button along substrate 35 thickness directions to upper process, greater than the height of contact along the substrate thickness direction, and the position of press button 20 on substrate can be arbitrarily along the height of substrate thickness direction on the top of the button 21 of press button 20.

Fig. 4 is that the utility model print cartridge is installed in first state diagram on the ink-cases of printers carriage, and this moment, the ink box chip contact contacted well with the printer resilient contact.Print cartridge 30 comprises housing 38, and surrounds and be used for storing the ink cavity 31 of printing ink by housing 38, is arranged on the ink supply port 32 of ink cavity 31 bottoms, is installed in the ink box chip on 38 1 sidewalls of housing.Contact sets 35-1 on the ink box chip, 35-2 contact with resilient contact 34 on the ink-cases of printers carriage, and the top of the button 21 of press button 20 contacts with ink-cases of printers carriage 40 sidewalls 36.

Print cartridge is installed in the process of printer, the print cartridge diapire contacts ink-cases of printers carriage diapire earlier near ink supply port part (box portion right below among Fig. 4), because the contact position of button 21 is ink-cases of printers carriage sidewalls, contact 35-1 on the ink box chip, 35-2 at first contacts with printer resilient contact 34, therefore resilient contact 34 is squeezed and elastic shrinkage, since the top of button 21 along the height of ink box chip substrate thickness direction greater than the height of contact along the substrate thickness direction, the print cartridge roof is under pressure when making print cartridge enter the ink-cases of printers carriage, the top of the button 21 of press button contacts with ink-cases of printers carriage sidewall 36, press button 20 is subjected to connecting from the extruding of ink cartridge carrier sidewall 36, also connected simultaneously the power supply of ink box chip microcontroller, the ink box chip microcontroller is started working.

Fig. 5 is that the utility model print cartridge is installed in second state diagram on the ink-cases of printers carriage, and this moment, ink box chip contact and printer resilient contact were in the state of loose contact.Ink box chip contact 35-1 contact with resilient contact on the ink-cases of printers carriage, and press button 20 is not subjected to the extruding from the ink cartridge carrier sidewall yet, so can not connect the power supply of ink box chip.

In the use of printer, owing to repeatedly dismantle the influence of print cartridge or adverse circumstances, resilient contact 34 flexibility decrease on the ink-cases of printers carriage, in the process that print cartridge is installed, may cause the part resilient contact that elastic shrinkage does not take place, make ink box chip and 34 loose contacts of printer resilient contact, button on the ink box chip 21 just can not contact with ink-cases of printers carriage sidewall at this moment, press button keeps off-state, even this moment, printer provided operating voltage also can not make the energising of ink box chip microcontroller by power contact, thereby avoid the ink box chip microcontroller under the situation of loose contact, to connect power supply and damage, printer can send print cartridge incorrect prompting is installed simultaneously, reminds the user to check.

Referring to Fig. 6, Fig. 6 is the utility model ink box chip second embodiment electrical schematic diagram.Be that with the prior art difference press button 20 1 ends connect the power contact 11 of ink box chip, the other end connects microcontroller power pins Vcc, and promptly press button 20 and resistance R are connected in parallel between microcontroller power pins Vcc and the ink box chip contact 11.Resistance R is the sectional pressure element of present embodiment, and its resistance is bigger.Under the situation that press button 20 disconnects, resistance R is connected in series between ink box chip microcontroller power pins Vcc and the power contact 11, when power contact is connected to printer, because the dividing potential drop effect of resistance R, printer is less by the voltage that power pins Vcc is added on the microcontroller, can not make microcontroller work, can prevent that the ink box chip contact from connecting voltage and damage under the situation of loose contact.When press button was subjected to connecting from the extruding of printer ink cartridge carriage sidewall, resistance R was in short-circuit condition, and microcontroller power pins Vcc is directly connected to power contact, and the ink box chip microcontroller was provided normal working voltage and started working this moment.

The size of resistance R resistance can be determined according to actual conditions.Simultaneously, also can use electronic component substitutional resistance R such as diode, triode, under the situation that press button disconnects, be in cut-off state as long as can guarantee as sectional pressure element.

In the utility model actual application, press button can also use devices such as pressure cell, as long as can guarantee after the contacting of pressure cell and ink-cases of printers carriage sidewall, and under the situation that is subjected to ink-cases of printers carriage lateral wall pressure, be in on-state and get final product in the contacting of contact and resilient contact.

Ink box chip of the present utility model can guarantee that the ink box chip contact just provides voltage to the ink box chip microcontroller contact well with the printer resilient contact after, can when ink box chip contact and the loose contact of printer resilient contact, ink box chip not provided voltage and cause the situation of ink box chip damage to take place.

It is emphasized that the ink box chip that the utility model provides not only can be applied on the print cartridge, also all be suitable on the consumable containers such as cartridge, developer box, toner Cartridge.

The utility model is not limited to the foregoing description, under the situation that does not break away from main scope of the utility model and design, can have multiple other distortion, change and replacement to be included within the described scope of claims.

Claims (9)

1, ink box chip comprises

One substrate;

Be arranged on the microcontroller on the described substrate;

Be positioned at a plurality of contacts that link to each other with the microcontroller pin on the substrate;

It is characterized in that:

Described ink box chip comprises a press button, and described press button one end links to each other with power contact, and the other end links to each other with the microcontroller power pins;

The button top of described press button along the height on the substrate thickness direction greater than described contact along the height on the substrate thickness direction.

2, ink box chip as claimed in claim 1 is characterized in that:

One sectional pressure element is connected in parallel on described press button two ends.

3, ink box chip as claimed in claim 2 is characterized in that:

Described sectional pressure element is a resistance.

4, as each described ink box chip of claim 1 to 3, it is characterized in that:

Described press button is arranged on the described substrate.

5, as each described ink box chip of claim 1 to 3, it is characterized in that:

Described press button is a pressure cell.

6, print cartridge comprises

Housing;

The ink cavity that surrounds by described housing;

Be arranged on the ink supply port of described ink cavity bottom;

Be installed in the ink box chip on sidewall of described housing;

Described ink box chip comprises

One substrate;

Be arranged on the microcontroller on the described substrate;

Be positioned at a plurality of contacts that link to each other with the microcontroller pin on the substrate;

It is characterized in that:

Described ink box chip comprises a press button, and described press button one end links to each other with power contact, and the other end links to each other with the microcontroller power pins;

The button top of described press button along the height on the substrate thickness direction greater than described contact along the height on the substrate thickness direction.

7, print cartridge as claimed in claim 6 is characterized in that:

One sectional pressure element is connected in parallel on described press button two ends.

8, print cartridge as claimed in claim 7 is characterized in that:

Described sectional pressure element is a resistance.

9, as each described print cartridge of claim 6 to 8, it is characterized in that:

Described press button is arranged on the described substrate.

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