I2C (Inter-Integrated Circuit) bus printing consumable chip without polarity division

Abstract

The utility model discloses an I2C (Inter-Integrated Circuit) bus printing consumable chip without polarity division, which comprises a substrate, one side of the substrate is provided with a connecting area, and the other side of the substrate is provided with a mounting area; a first contact, a second contact, a third contact and a fourth contact are arranged on the connecting area, and the substrate is connected with a signal elastic piece of the printing equipment through the first contact, the second contact, the third contact and the fourth contact; a main control unit, a first power supply loop and a second power supply loop are arranged on the mounting area; the first power supply loop is respectively connected with the first contact, the main control unit and the fourth contact, and the second power supply loop is respectively connected with the fourth contact, the main control unit and the first contact. According to the utility model, the technical problem that the chip or the printing equipment is damaged due to the fact that the chip contacts of the existing consumable chip are connected reversely is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to printing equipment technical field especially relates to a kind of non-polarity I 2 C bus printing consumable chip. BACKGROUND

[0002] In printing equipment industry, printing equipment, such as ink-jet printer, laser printer, label printer and copying machine, uses printing consumable, such as ink cartridge, waste ink tank, selenium drum, powder box, fixing device, label value and ribbon, etc., and there is a consumable chip on it, which is used for consumable authentication, model matching and recording printing consumable remaining amount by printing equipment. In consumable production, due to some consumable structure, chip appearance, printing equipment shell and chip contact design problems, workshop workers are easy to install chip with contact direction reversed, which leads to that consumable cannot be used after being installed on printing equipment, and even causes chip damage and printing equipment circuit board damage due to power polarity reversal. Therefore, it is urgent to provide a kind of non-polarity I 2 C bus printing consumable chip, to solve the technical problem that existing consumable chip is often damaged or printing equipment is damaged due to chip contact direction reversal. SUMMARY

[0003] The main purpose of the utility model is to provide a kind of non-polarity I 2 C bus printing consumable chip, to solve the technical problem that existing consumable chip is often damaged or printing equipment is damaged due to chip contact direction reversal.

[0004] To achieve the above purpose, the utility model provides a kind of non-polarity I 2 C bus printing consumable chip, wherein the non-polarity I 2 C bus printing consumable chip includes:

[0005] The base plate is provided with a connecting area on one side, and an installation area is provided on the other side of the base plate.

[0006] The connecting area is provided with first contact, second contact, third contact and fourth contact, and the base plate is connected with the signal shell of printing equipment through the first contact, second contact, third contact and fourth contact. The installation area is provided with a master control unit, a first power supply circuit and a second power supply circuit. The first power supply circuit is connected with the first contact, the master control unit and the fourth contact respectively, and the second power supply circuit is connected with the fourth contact, the master control unit and the first contact respectively.

[0007] In one preferred embodiment, the first power supply circuit includes diode D1 and diode D2; the anode of diode D1 is connected with the first contact, the cathode of diode D1 is connected with the VDD pin of the master control unit, the VSS pin of the master control unit is connected with the anode of diode D2, and the cathode of diode D2 is connected with the fourth contact.

[0008] In one preferred embodiment, the second power supply circuit includes diode D3 and diode D4; the anode of diode D3 is connected with the fourth contact, the cathode of diode D3 is connected with the VDD pin of the master control unit, the VSS pin of the master control unit is connected with the anode of diode D4, and the cathode of diode D4 is connected with the first contact.

[0009] In one preferred embodiment, the first contact of the connection area is connected with the power supply output spring sheet of the printing device, the fourth contact is connected with the power supply ground spring sheet of the printing device, the second contact is connected with the I2C bus clock signal SCL spring sheet of the printing device, and the third contact is connected with the I2C bus data signal SDA spring sheet of the printing device. 2 In one preferred embodiment, the first contact of the connection area is connected with the power supply output spring sheet of the printing device, the fourth contact is connected with the power supply ground spring sheet of the printing device, the second contact is connected with the I2C bus clock signal SCL spring sheet of the printing device, and the third contact is connected with the I2C bus data signal SDA spring sheet of the printing device. 2 In one preferred embodiment, the first contact of the connection area is connected with the power supply output spring sheet of the printing device, the fourth contact is connected with the power supply ground spring sheet of the printing device, the second contact is connected with the I2C bus clock signal SCL spring sheet of the printing device, and the third contact is connected with the I2C bus data signal SDA spring sheet of the printing device.

[0010] In one preferred embodiment, the first contact of the connection area is connected with the power supply ground spring sheet of the printing device, the fourth contact is connected with the power supply output spring sheet of the printing device, the second contact is connected with the I2C bus data signal SDA spring sheet of the printing device, and the third contact is connected with the I2C bus clock signal SCL spring sheet of the printing device. 2 In one preferred embodiment, the first contact of the connection area is connected with the power supply ground spring sheet of the printing device, the fourth contact is connected with the power supply output spring sheet of the printing device, the second contact is connected with the I2C bus data signal SDA spring sheet of the printing device, and the third contact is connected with the I2C bus clock signal SCL spring sheet of the printing device. 2 In one preferred embodiment, the first contact of the connection area is connected with the power supply ground spring sheet of the printing device, the fourth contact is connected with the power supply output spring sheet of the printing device, the second contact is connected with the I2C bus data signal SDA spring sheet of the printing device, and the third contact is connected with the I2C bus clock signal SCL spring sheet of the printing device.

[0011] In the above technical solution of the utility model, the non-polar I 2 The I2C bus printing consumable chip comprises a substrate, one side of the substrate is provided with a connection area, the other side of the substrate is provided with a mounting area, a first contact, a second contact, a third contact and a fourth contact are arranged on the connection area, the substrate is connected with the signal spring sheet of the printing device through the first contact, the second contact, the third contact and the fourth contact, a master control unit, a first power supply circuit and a second power supply circuit are arranged on the mounting area, the first power supply circuit is connected with the first contact, the master control unit and the fourth contact respectively, and the second power supply circuit is connected with the fourth contact, the master control unit and the first contact respectively. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the description of the embodiments or the prior art. Obviously, the drawings described below only show some of the embodiments of the present application, and for those skilled in the art, other drawings can also be obtained according to the structures shown in these drawings without creative labor.

[0013] Fig. 1 For the embodiment of the present application, a non-polar I 2 The first schematic diagram of the C bus printing consumable chip;

[0014] Fig. 2 For the embodiment of the present application, a non-polar I 2 The second schematic diagram of the C bus printing consumable chip;

[0015] Fig. 3 For the embodiment of the present application, a non-polar I 2 The third schematic diagram of the C bus printing consumable chip.

[0016] Explanation of the reference signs:

[0017] 1, substrate; 2, first contact; 3, second contact; 4, third contact; 5, fourth contact; 6, master control unit.

[0018] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0020] It should be noted that all directional indications (such as up, down, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between the components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications will also change accordingly.

[0021] In addition, the description of "first", "second" and the like in the present application is only for the purpose of description and should not be understood as indicating or implying relative importance or implying the number of the indicated technical features. Therefore, the features limited by "first" and "second" can be explicitly or implicitly included at least one of the features.

[0022] Furthermore, the technical solutions of various embodiments of the present application can be combined with each other, but must be based on the realization of ordinary technical personnel in the art, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist and is not within the protection scope required by the present application.

[0023] Referring to Figs. 1-3 According to one aspect of the present application, the present application provides a non-polar I 2 C bus printing consumable chip, wherein the non-polar I 2 The C bus printing consumable chip comprises:

[0024] A substrate 1, one side of the substrate 1 is provided with a connecting area, and the other side of the substrate 1 is provided with a mounting area;

[0025] The connecting area is provided with a first contact 2, a second contact 3, a third contact 4 and a fourth contact 5, and the substrate 1 is connected with the signal spring sheet of the printing device through the first contact 2, the second contact 3, the third contact 4 and the fourth contact 5; The mounting area is provided with a main control unit 6, a first power supply circuit and a second power supply circuit; the first power supply circuit is connected with the first contact 2, the main control unit 6 and the fourth contact 5 respectively, and the second power supply circuit is connected with the fourth contact 5, the main control unit 6 and the first contact 2 respectively; wherein the first contact 2 is the chip contact 1, the second contact 3 is the chip contact 2, the third contact 4 is the chip contact 3, and the fourth contact 5 is the chip contact 4.

[0026] Specifically, in the present embodiment, the first power supply circuit comprises a diode D1 and a diode D2; the anode of the diode D1 is connected with the first contact 2, the cathode of the diode D1 is connected with the VDD pin of the main control unit 6, the VSS pin of the main control unit 6 is connected with the anode of the diode D2, and the cathode of the diode D2 is connected with the fourth contact 5.

[0027] Specifically, in the present embodiment, the second power supply circuit comprises a diode D3 and a diode D4; the anode of the diode D3 is connected with the fourth contact 5, the cathode of the diode D3 is connected with the VDD pin of the main control unit 6, the VSS pin of the main control unit 6 is connected with the anode of the diode D4, and the cathode of the diode D4 is connected with the first contact 2.

[0028] Specifically, in this embodiment, the first contact 2 of the connection area is connected to the power output spring of the printing device, and the fourth contact 5 is connected to the power ground spring of the printing device. At this time, the first power supply circuit is on, and the second power supply circuit is off, that is, diodes D1 and D2 are on, and diodes D3 and D4 are off. The conduction of diodes D1 and D2 provides power to the main control unit 6; the second contact 3 is connected to the printing device I 2 The clock signal SCL of the C bus is connected via a spring contact, and the third contact 4 is connected to the printing device I. 2 The C bus data signal SDA spring contact is connected; when device I 2 When the C signal is transmitted to the chip, it triggers the SCL1 and SDA1 interfaces of the main control unit 6 to be valid. The other set of interfaces, SCL2 and SDA2, of the main control unit 6 are detected by signal reversal. 2 The C signal is invalid because it does not conform to the protocol rules. At this time, the SCL1 and SDA1 interfaces serve as communication pins of the main control unit 6, receiving command signals transmitted from the printing device through the second contact 3 and the third contact 4. The main control unit 6 processes the commands and uses the SDA1 interface to send the relevant processing result signals back to the printing device through the third contact 4. The consumable chip works normally.

[0029] Specifically, in this embodiment, the first contact 2 of the connection area is connected to the power ground spring of the printing device, and the fourth contact 5 is connected to the power output spring of the printing device. The first power supply circuit is cut off, and the second power supply circuit is turned on. That is, diodes D1 and D2 are cut off, and diodes D3 and D4 are turned on. The turn-on of diodes D3 and D4 provides power to the main control unit 6; the second contact 3 is connected to the printing device I. 2 The data signal SDA spring of the C bus is connected, and the third contact 4 is connected to the printing device I. 2 The clock chip SCL spring is connected to the C bus; when device I... 2 When the C signal is transmitted to the chip, it triggers the SCL2 and SDA2 interfaces of the main control unit 6 to be valid. Meanwhile, the SCL1 and SDA1 interfaces of the other main control unit 6 detect I due to signal reversal. 2 The C signal is invalid because it does not conform to the protocol rules. At this time, SCL2 and SDA2 serve as the communication interface of the main control unit 6. They receive the command signals transmitted by the printing device through the second contact 3 and the third contact 4. The main control unit 6 processes the command and uses the SDA2 interface to send the relevant processing results back to the printing device through the second contact 3. The consumable chip works normally.

[0030] Specifically, in this embodiment, the consumable chip of this utility model does not need to distinguish the installation direction. As long as the contacts face outward, it can be installed on the printing consumable in any reverse installation form and can be used normally in the printing equipment. This realizes a single-bus chip that can work normally regardless of polarity or reversibility, reducing the error rate of workshop workers when installing the chip, optimizing production efficiency and product yield, and ensuring that the consumable chip and printing equipment are not damaged.

[0031] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the inventive concept of this utility model and the contents of this utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A type of I without polarity 2 C-bus printing consumable chip, characterized in that... include: A substrate, wherein a connection area is provided on one side of the substrate and a mounting area is provided on the other side of the substrate; The connection area is provided with a first contact, a second contact, a third contact, and a fourth contact. The substrate is connected to the signal spring of the printing device through the first contact, the second contact, the third contact, and the fourth contact. The mounting area is provided with a main control unit, a first power supply circuit, and a second power supply circuit. The first power supply circuit is connected to the first contact, the main control unit, and the fourth contact, respectively. The second power supply circuit is connected to the fourth contact, the main control unit, and the first contact, respectively.

2. A polarity-independent I according to claim 1 2 C-bus printing consumable chip, characterized in that... The first power supply circuit includes diode D1 and diode D2; the anode of diode D1 is connected to the first contact, the cathode of diode D1 is connected to the VDD pin of the main control unit, the VSS pin of the main control unit is connected to the anode of diode D2, and the cathode of diode D2 is connected to the fourth contact.

3. A polarity-independent I according to any one of claims 1-2 2 C-bus printing consumable chip, characterized in that... The second power supply circuit includes diode D3 and diode D4; the anode of diode D3 is connected to the fourth contact, the cathode of diode D3 is connected to the VDD pin of the main control unit, the VSS pin of the main control unit is connected to the anode of diode D4, and the cathode of diode D4 is connected to the first contact.

4. A polarity-independent I according to any one of claims 1-2 2 C-bus printing consumable chip, characterized in that... The first contact of the connection area is connected to the power output spring of the printing device, the fourth contact is connected to the power ground spring of the printing device, and the second contact is connected to the printing device I. 2 The clock signal SCL of the C bus is connected via a spring contact, and the third contact is connected to the printing device I. 2 The data signal SDA on the C bus is connected via a spring clip.

5. A polarity-independent I according to any one of claims 1-2 2 C-bus printing consumable chip, characterized in that... The first contact of the connection area is connected to the power ground spring of the printing device, the fourth contact is connected to the power output spring of the printing device, and the second contact is connected to the printing device I. 2 The C-bus data signal SDA spring is connected, and the third contact is connected to the printing device I. 2 The clock chip SCL spring is connected to the C bus.

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