Terminal connecting piece of ink box and ink-jet printing equipment

Abstract

The utility model provides a terminal connecting piece of an ink box and an ink-jet printing device, the terminal connecting piece of the ink box is detachably installed on a printing carriage contact pin frame of the ink-jet printing device, the printing carriage contact pin frame is provided with a target function contact pin, an ink box chip of the ink box is provided with a target function terminal, the terminal connecting piece is provided with a conductive piece, and the conductive piece is provided with a conductive wire. The terminal connecting piece comprises a terminal connecting piece and a conductive piece, the conductive piece comprises a first elastic arm and a second elastic arm, the first elastic arm abuts against a target function contact pin of the printing carriage, the second elastic arm abuts against a target function terminal on the ink box chip, and after the terminal connecting piece and the ink box chip are installed in place, the target function contact pin is electrically connected with the target function terminal. The terminal connecting piece is applied to the ink-jet printing equipment. According to the utility model, the ink-jet printing equipment can be compatible with ink cartridges with different connection terminal arrangements.

Description

Technical Field

[0001] The utility model relates to the technical field of printing consumables, in particular to a terminal connector used for an ink cartridge, and also relates to an inkjet printing device using the terminal connector. Background Art

[0002] Printing equipment, as a common office equipment, provides great convenience for modern office. Common printing equipment is divided into inkjet printing equipment and laser printing equipment. Inkjet printing equipment uses an ink cartridge containing ink as a consumable container to spray ink onto paper to form the text or pattern to be printed on the paper; laser printing equipment uses a toner cartridge containing toner as a consumable container to form the text or pattern to be printed on the medium.

[0003] See also Figure 1 There is a color inkjet printing device having a housing 11. Figure 1 The inkjet printing device shown in the figure omits the support plate of the housing 11. The housing 11 is provided with a movement 12 of the inkjet printing device and a slide bar. The printing carriage 14 is moved by the motor ( Figure 1 The printing carriage 14 is provided with a main control circuit board ( Figure 1 The main control circuit board communicates with the movement 12 via the flat cable 13.

[0004] A plurality of ink cartridges 15 are detachably mounted on the printing carriage 14, and different ink cartridges 15 contain inks of different colors. The structure of the ink cartridge 15 is as follows: Figure 2 As shown, the ink cartridge 15 has a box body 16 , which encloses a cavity for containing ink. An ink outlet 17 is provided at the lower end of the cavity. The ink in the cavity flows out through the ink outlet 17 and supplies ink to the ink supply needle of the printing carriage 14 .

[0005] A chip 18 is mounted on the outer wall of the cartridge body 16 of the ink cartridge 15. The chip 18 has a substrate. One side of the substrate is provided with a plurality of connection terminals 19 for electrically connecting with the contact pins on the printing carriage 14. The other side of the substrate is provided with a memory ( Figure 2 The memory is not visible in the image processing unit), usually, the memory is a non-volatile memory, such as EEPROM or FLASH, which stores information related to the ink cartridge, including variable information and constant information. The variable information is information that changes continuously with the printing operation, such as the remaining ink level, printing time, number of printed sheets, etc. The constant information is information that does not change with the printing operation, such as the ink cartridge signal, the applicable inkjet printing device signal, the ink color, etc.

[0006] After the ink cartridge 15 is installed in the print carriage 14 of the inkjet printing device, the inkjet printing device powers on the chip 18 and reads the data stored in the memory of the chip 18 to determine whether the signal of the ink cartridge 15 is appropriate, whether the amount of ink remaining in the ink cartridge 15 is sufficient, etc. Only after determining that the signal of the ink cartridge 15 is appropriate and there is sufficient ink in the ink cartridge 15, the inkjet printing device can perform the printing work.

[0007] The conventional ink cartridge chip 18 is provided with 9 connection terminals, and correspondingly, the print carriage stylus holder of the inkjet printing device is also provided with 9 contact pins. After the ink cartridge 15 is installed on the print carriage 14, each connection terminal is electrically connected to a contact pin. Some existing inkjet printing devices reduce the number of contact pins on the print carriage stylus holder to 5, and correspondingly, the number of connection terminals on the ink cartridge chip 18 is also reduced accordingly. However, on the ink cartridge chip with 5 connection terminals, the distance between the ground terminal and other terminals is relatively far, such as Figure 2 As shown, the overall area of ​​the ink cartridge chip 18 is larger. If the ground terminal is moved closer to other connection terminals, the overall area of ​​the ink cartridge chip 18 can be reduced, which is beneficial to reducing the production cost of the ink cartridge chip 18.

[0008] However, since the grounding terminal needs to be electrically connected to the grounding contact pin of the print carriage contact pin holder on the inkjet printing device, if only the position of the grounding terminal on the ink cartridge chip 18 is moved but the position of the grounding contact pin of the inkjet printing device is not adjusted, the grounding contact pin will not be able to contact the grounding terminal.

[0009] Furthermore, since the position of the grounding pin on the inkjet printing device is fixed, while the position of the grounding terminal on different ink cartridge chips is not fixed, it is necessary to solve the compatibility problem when different types of ink cartridge chips are installed in the inkjet printing device. Summary of the invention

[0010] The first object of the utility model is to provide a terminal connector which can be used for mounting an ink cartridge chip with two or more different connection terminal arrangement modes on an inkjet printing device.

[0011] The second object of the utility model is to provide an inkjet printing device using the terminal connector of the ink cartridge.

[0012] To achieve the first purpose of the utility model, the terminal connector of the ink cartridge provided by the utility model can be detachably installed on the print carriage contact pin holder of the inkjet printing device, the print carriage contact pin holder is provided with a target function contact pin, and the ink cartridge chip of the ink cartridge is provided with a target function terminal; and the terminal connector has a conductive member, the conductive member includes a first elastic arm and a second elastic arm, the first elastic arm abuts against the target function contact pin of the print carriage, and the second elastic arm abuts against the target function terminal on the ink cartridge chip, when the terminal connector and the ink cartridge chip are both installed in place on the inkjet printing device, the target function contact pin is electrically connected to the target function terminal.

[0013] As can be seen from the above scheme, the terminal connector is provided with a first elastic arm and a second elastic arm, and the two elastic arms are respectively abutted against the target function contact pin of the printing carriage and the target function terminal on the ink cartridge chip, and the electrical connection between the target function contact pin and the target function terminal is achieved through the conductive effect of the conductive member. In this way, even if the target function contact pin and the target function terminal are not arranged directly opposite each other, that is, the target function contact pin and the target function terminal are not in direct contact, electrical connection can still be achieved through the terminal connector. In this way, the ink cartridge chip with ground terminals of different arrangements can be connected to the printing carriage contact pin holder through the terminal connector, so that the inkjet printing device can be compatible with ink cartridge chips with different terminal arrangements.

[0014] A preferred solution is that the first elastic arm and the second elastic arm are located on the same side of the printing carriage stylus holder.

[0015] It can be seen that setting the two elastic arms on the same side of the print carriage contact pin holder is equivalent to achieving the translation of the target functional terminals on the ink cartridge chip, meeting the use requirements of ink cartridge chips with different terminal arrangements.

[0016] A further solution is that the first elastic arm and the second elastic arm are arranged in parallel in the length direction of the print carriage contact needle holder.

[0017] A further solution is that the distance between the first elastic arm and the second elastic arm in the length direction of the printing carriage stylus holder is greater than or equal to 1 / 5 of the total length of the printing carriage stylus holder.

[0018] It can be seen that the arrangement of the two elastic arms parallel to each other can be suitable for ink cartridge chips whose grounding terminals change position in the length direction of the print carriage contact pin holder. When the spacing between the first elastic arm and the second elastic arm is greater than or equal to 1 / 5 of the total length of the print carriage contact pin holder, it is equivalent to that the grounding terminal on the ink cartridge chip can be moved in the direction of other terminals by at least the distance between two adjacent contact pins in the same row. This can reduce the substrate area of ​​the ink cartridge chip. For example, all the connection terminals on the ink cartridge chip can be located on one side of the center axis of the ink cartridge.

[0019] A further solution is that the terminal connector also includes an insulating block, which is limited above the printing carriage contact pin holder; a first positioning member is provided on the insulating block, and a second positioning member is provided on the conductive member, and the first positioning member cooperates with the second positioning member.

[0020] In this way, the insulating block is fixed relative to the printing carriage contact pin holder through the limiting cooperation between the insulating block and the printing carriage contact pin holder, and the conductive member and the insulating block are fixed through the cooperation between the first positioning member and the second positioning member. Therefore, the conductive member can be positioned relative to the printing carriage contact pin holder, thereby ensuring that the first elastic arm can accurately abut against the target functional contact pin of the printing carriage.

[0021] A further solution is that the first positioning member is a positioning column, and the second positioning member is a through hole, and the through hole can be sleeved outside the positioning column.

[0022] It can be seen that the positioning of the conductive member and the insulating block can be achieved accurately and at low cost through the simple cooperation between the positioning column and the through hole.

[0023] A further solution is that a first limit block is provided on the first side of the insulating block, and a second limit block is provided on the second side of the insulating block; a first limit groove is provided on the first side wall that matches the first side of the insulating block, and a second limit groove is provided on the second side wall that matches the second side of the insulating block, and an opening direction of the first limit groove is opposite to an opening direction of the second limit groove.

[0024] It can be seen that the cooperation between the two limiting blocks and the two limiting grooves can limit the conductive member and the insulating block in the length direction of the print carriage contact needle holder, thereby preventing the conductive member from moving relative to the insulating block in the length direction.

[0025] A further solution is that the first limiting block is provided with a guiding slope in the direction in which the conductive member is inserted into the insulating block.

[0026] It can be seen that the conductive member can be easily installed on the insulating block by providing the guiding slope.

[0027] An optional solution is that the printing carriage stylus holder is installed on the stylus mounting frame; a positioning portion is provided at the upper end of the conductive member, both ends of the positioning portion respectively abut against the two end walls of the stylus mounting frame, and the printing carriage stylus holder is located between the two end walls.

[0028] It can be seen that the terminal connector is positioned on the contact pin mounting frame by the positioning portion arranged at the upper end of the conductive member, thereby fixing the terminal connector on the contact pin frame of the printing carriage, thereby ensuring that the first elastic arm can accurately abut against the target functional contact pin of the printing carriage.

[0029] A further solution is that a gap is formed between at least a part of the positioning portion and the upper end of the print carriage stylus holder.

[0030] Preferably, the gap is located above the contact pins other than the target function contact pin of the printing carriage contact pin holder, so that the other contact pins can be prevented from being electrically connected to the terminal connector, thereby preventing a short circuit between the other contact pins and the target function contact pin.

[0031] To achieve the above-mentioned second purpose, the inkjet printing device provided by the utility model includes a body, the body is provided with at least one printing carriage, and the printing carriage is detachably installed with an ink cartridge; the printing carriage is provided with a printing carriage contact pin holder, and it is characterized in that the printing carriage contact pin holder is provided with the terminal connector of the above-mentioned ink cartridge. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a structural diagram of an existing inkjet printing device.

[0033] Figure 2 It is a structural diagram of an existing ink cartridge.

[0034] Figure 3 It is a structural diagram of a stylus mounting frame and an ink cartridge of an inkjet printing device in a first embodiment of the utility model.

[0035] Figure 4 It is a structural exploded view of a stylus mounting frame and an ink cartridge of an inkjet printing device in a first embodiment of the utility model.

[0036] Figure 5 It is a structural exploded view of the stylus mounting frame and the ink cartridge chip of the inkjet printing device in the first embodiment of the utility model.

[0037] Figure 6 It is a structural exploded view of the stylus mounting frame and the terminal connector of the inkjet printing device in the first embodiment of the utility model from a first perspective.

[0038] Figure 7 It is a structural exploded view of the stylus mounting frame and the terminal connector of the inkjet printing device in the first embodiment of the utility model from a second perspective.

[0039] Figure 8 It is a structural diagram of the first viewing angle of the printing carriage contact pin holder and the terminal connector of the inkjet printing device in the first embodiment of the utility model.

[0040] Fig. 9 It is a structural diagram of the printing carriage contact needle frame and the terminal connector of the inkjet printing device in the first embodiment of the utility model from a second viewing angle.

[0041] Fig.10 It is a structural exploded view of the printing carriage contact pin holder and the terminal connector of the inkjet printing device in the first embodiment of the utility model.

[0042] Fig.11 It is a structural diagram of the terminal connector in the first embodiment of the utility model from a first viewing angle.

[0043] Fig.12 It is a structural diagram of the terminal connector in the first embodiment of the utility model from a second viewing angle.

[0044] Fig.13 It is a structural exploded view of the terminal connector in the first embodiment of the utility model from a first perspective.

[0045] Fig.14 It is a structural exploded view of the terminal connector in the first embodiment of the utility model from a second viewing angle.

[0046] Fig.15 It is a structural diagram of the terminal connector, the ink cartridge chip and the contact pin in the first embodiment of the utility model.

[0047] Fig.16 It is a structural diagram of another ink cartridge chip in the first embodiment of the utility model.

[0048] Fig.17 It is a structural diagram of a terminal connector, another ink cartridge chip, and a contact pin in the first embodiment of the utility model.

[0049] Fig.18 It is a structural diagram of a stylus mounting frame and a terminal connector of an inkjet printing device in a second embodiment of the utility model.

[0050] Fig.19 It is a structural exploded view of a stylus mounting frame and a terminal connector of an inkjet printing device in a second embodiment of the utility model.

[0051] Fig. 20 It is a structural diagram of the printing carriage contact needle frame and the terminal connector of the inkjet printing device in the second embodiment of the utility model from the first perspective.

[0052] Fig.21 It is a structural diagram of the printing carriage contact needle frame and the terminal connector of the inkjet printing device in the second embodiment of the utility model from a second viewing angle.

[0053] Fig. 22 It is a structural exploded view of a printing carriage contact pin holder and a terminal connector of an inkjet printing device in a second embodiment of the utility model.

[0054] The present invention will be further described below with reference to the accompanying drawings and embodiments. DETAILED DESCRIPTION

[0055] The inkjet printing device of the utility model has a body, and the body is provided with at least a printing carriage, and one or more ink cartridges are detachably installed on the printing carriage, and each ink cartridge is provided with an ink cartridge chip. The printing carriage is provided with a stylus mounting frame, and the stylus mounting frame is provided with one or more printing carriage stylus mounting frames, and the printing carriage stylus mounting frame is provided with a plurality of styluses. The terminal connector provided by the utility model is installed on the printing carriage stylus mounting frame to realize the electrical connection between the ink cartridge chip and the stylus on the printing carriage stylus mounting frame.

[0056] First embodiment:

[0057] See also Figure 3 and Figure 4 The ink cartridge 110 of this embodiment is detachably mounted on the printing carriage of the inkjet printing device. A stylus mounting bracket 110 is disposed on one side of the printing carriage. When the ink cartridge 100 is mounted on the printing carriage, the ink cartridge 100 is adjacent to the stylus mounting bracket 110. An ink cartridge chip 120 is disposed on the side of the ink cartridge 100 close to the stylus mounting bracket 110. A plurality of connection terminals are disposed on the ink cartridge chip 120. A main control circuit board 118 is disposed on the side of the stylus mounting bracket 110 away from the ink cartridge 100.

[0058] See also Figures 5 to 7 The stylus mounting frame 110 is provided with a plurality of stylus mounting positions 111, each stylus mounting position 111 is detachably mounted with a printing carriage stylus frame 115, and a plurality of styluses 116 are mounted on the printing carriage stylus frame 115. Figure 7 It can be seen that each contact pin 116 protrudes from the outer surface of the print carriage contact pin holder 115. In the prior art, when the ink cartridge 100 is installed on the print carriage, the connection terminal on the ink cartridge chip 120 directly contacts the contact pin 116.

[0059] In addition, a plurality of contacts 119 are provided on the main control circuit board 118, the number of the contacts 119 is equal to the number of the contact pins 116, and each contact pin 116 corresponds to one contact 119, and the contact pin 116 is electrically connected to the corresponding contact 119. Usually, the contact pins 116 are made of conductive metal materials, so that the connection terminals on the ink cartridge chip 120 can be electrically connected to the contacts 119 on the main control circuit board 118 through the contact pins 116, thereby realizing communication between the ink cartridge chip 120 and the inkjet printing device.

[0060] In order to achieve compatibility with ink cartridges with various terminal arrangements, in this embodiment, a terminal connector 130 is provided on the print carriage contact pin holder 115. Figures 8 to 10The terminal connector 130 includes a conductive member 131 and an insulating block 140. The insulating block 140 is placed above the printing carriage contact pin holder 150. The conductive member 131 is mounted on the insulating block 140, and the conductive member 131 is relatively fixed to the insulating block 140. Preferably, the conductive member 131 is a spring made of a conductive metal sheet by stamping or the like.

[0061] Combination Figures 11 to 14 The conductive member 131 has a top wall 132, and a through hole 151 is provided on the top wall 132. Preferably, the through hole 151 is a circular through hole, and the through hole 151 passes through the upper and lower surfaces of the top wall 132. A positioning column 142 as the first positioning member of this embodiment is provided on the top of the insulating block 140, and the through hole 151 is used as the second positioning member of this embodiment. The through hole 151 can be sleeved outside the positioning column 142. Preferably, the inner diameter of the through hole 151 is slightly larger than the outer diameter of the positioning column 142. In this way, the conductive member 131 and the insulating block 140 can be relatively positioned by the cooperation between the through hole 151 and the positioning column 142. In addition, a guiding slope 143 is provided on the top of the positioning column 142, and the guiding slope 143 is inclined along the direction in which the conductive member 131 is installed on the insulating block 140. The provision of the guiding slope 143 can facilitate the installation of the conductive member 131 on the insulating block 140, so that the conductive member 131 is installed on the insulating block 140 more smoothly.

[0062] In addition, a first side wall 133 and a second side wall 134 are disposed below the top wall 132 of the conductive member 131. The first side wall 133 and the second side wall 134 are disposed parallel to each other and opposite to each other. Figure 8 and Fig. 9 It can be seen that when the terminal connector 130 is installed above the printing carriage contact pin holder 115, the first side wall 133 and the second side wall 134 are respectively located on both sides of the printing carriage contact pin holder 115. In this way, the first side wall 133, the second side wall 134 and the top wall 132 form a spring sheet body with an opening facing downward and a roughly U-shaped shape. Preferably, the opening distance of the U-shaped spring sheet is equal to or slightly larger than the width of the printing carriage contact pin holder 115, so that the main body of the conductive member 131 can be fixed on the printing carriage contact pin holder 115, which is conducive to the installation of the terminal connector 130. Of course, in some other embodiments, the opening distance of the U-shaped spring sheet can also be slightly smaller than the width of the printing carriage contact pin holder 115, so that the printing carriage contact pin holder 115 can be clamped by the elastic force between the first side wall 133 and the second side wall 134, making it more difficult to move in the up and down direction and the front and back direction.

[0063] A first elastic arm 135 and a second elastic arm 136 are provided below the first side wall 133. The first elastic arm 135 and the second elastic arm 136 both extend downward from the lower end of the first side wall 133. The first elastic arm 135 and the second elastic arm 136 are located on the same side of the printing carriage stylus holder 115. In the length direction of the printing carriage stylus holder 115, the first elastic arm 135 and the second elastic arm 136 are arranged parallel to each other. In addition, the first elastic arm 135 and the second elastic arm 136 have the same shape. A winding portion 137 is provided at the end of the first elastic arm 135, that is, at the lowermost end of the first elastic arm 135. The winding portion 137 is a region formed by the end of the first elastic arm 135 winding upward. Since the end of the first elastic arm 135 needs to abut against the target connection terminal of the ink cartridge chip and / or the target functional contact pin of the print carriage contact pin holder 115, and as the ink cartridge 100 is repeatedly installed and disassembled, the end of the first elastic arm 135 is often subjected to greater pressure. By providing the winding portion 137, the strength of the end of the first elastic arm 135 can be increased, thereby extending the service life of the terminal connector 130.

[0064] In addition, a first limit block 144 is provided on the first side surface 141 of the insulating block 140, and a second limit block 146 is provided on the second side surface 147 of the insulating block 140. Accordingly, a first limit groove 152 is provided on the first side wall 133 of the conductive member 131, and a second limit groove 153 is provided on the second side wall 134 of the conductive member 131, wherein the first side wall 133 of the conductive member 131 cooperates with the first side surface 141 of the insulating block 140, and the second side wall 134 of the conductive member 131 cooperates with the second side surface 147 of the insulating block 140.

[0065] When the conductive member 131 is mounted on the insulating block 140, the first limiting block 144 is located in the first limiting groove 152, and the second limiting block 146 is located in the second limiting groove 153. In addition, the opening direction of the first limiting groove 152 is opposite to the opening direction of the second limiting groove 153. Fig.14 In the embodiment, the opening direction of the first limiting groove 152 faces the right side, while the opening direction of the second limiting groove 153 faces the left side. Moreover, on the insulating block 140, the first limiting block 144 and the second limiting block 146 are also respectively located at the two ends of the length direction of the printing carriage stylus holder 115. In this way, through the cooperation of the two limiting blocks and the two limiting members, the positioning of the conductive member 131 and the insulating block 140 in the length direction of the printing carriage stylus holder 115 can be achieved. In addition, the first limiting block 144 is provided with a guiding inclined surface 145 in the direction in which the conductive member 130 is inserted into the insulating block 140, so as to facilitate the assembly of the conductive member 130 and the insulating block 140.

[0066] Combination Figure 7The insulating block 140 is arranged on the printing carriage contact pin holder 115, and both ends of the insulating block 140 are limited between the two end walls 113 and 114, and the insulating block 140 is also arranged between the end walls 113 and 114. In this way, the insulating block 140 is limited in the length direction of the printing carriage contact pin holder 115 by the end walls 113 and 114.

[0067] See also Fig.15 , an ink cartridge chip 120 with a terminal arrangement has a substrate 121, and a plurality of connection terminals 122 are arranged on the substrate 121, wherein one of the connection terminals 125 is a target connection terminal 125, for example, the target connection terminal 125 is a ground terminal. When the ink cartridge 110 and the terminal connector 130 are installed in the inkjet printing device, one of the contact pins 116 abuts against the first elastic arm 135, and the contact pin is a target function contact pin, for example, a ground contact pin. In addition, the end of the first elastic arm 135 is also grounded to the target connection terminal 125 of the ink cartridge chip 120, so that the target function contact pin 116 and the target connection terminal 125 are electrically connected through the first elastic arm 135. From Fig.15 It can be seen that the second elastic arm 136 does not contact any contact pin or any connecting terminal.

[0068] Since the insulating block 140 is limited between the end walls 113 and 114, the positional relationship between the insulating block 140 and the printing carriage contact pin holder 115 is fixed, and since the conductive member 131 is also fixedly connected to the insulating block 140 through two limiting grooves and the limiting block, the positional relationship between the conductive member 131 and the printing carriage contact pin holder 115 is fixed, thereby ensuring that the first elastic arm 135 can accurately abut against the target functional contact pin 116.

[0069] For the ink cartridge chip 160 with another terminal arrangement, the terminal connector 130 of this embodiment can still realize the electrical connection between the target connection terminal and the target functional contact pin. Fig.16 Another ink cartridge chip 160 has a plurality of connection terminals 162, wherein the target connection terminal 163 is a ground terminal. Fig.15 It can be seen that the target connection terminal 163 is closer to other connection terminals than the target connection terminal 125. Fig.17 For this ink cartridge chip 160, the first elastic arm 135 of the conductive member 131 can abut against the target functional contact pin 116, while the second elastic arm 136 is directly connected to the target connection terminal 163. Fig.17 It can be seen that the target function contact pin 116 and the target connection terminal 163 are not arranged relative to each other, that is, if the terminal connector 130 is not provided, the target function contact pin 116 will not be able to be electrically connected to the target connection terminal 163 .

[0070] See also Fig.10 There are nine slits on the print carriage stylus holder 115. If all the nine slits are equipped with styluses, two rows of styluses will be formed, and the distance between two adjacent styluses in each row is about 1 / 5 of the total length of the entire print carriage stylus holder 115. In this embodiment, the distance between the first elastic arm 135 and the second elastic arm 136 in the length direction of the print carriage stylus holder 115 is greater than or equal to 1 / 5 of the total length of the print carriage stylus holder 115, such as about 2 / 5 of the total length of the print carriage stylus holder 115. In this way, the ground terminal on the ink cartridge chip 160 can be moved in the direction of other terminals by twice the distance between two adjacent styluses in the same row. See Fig.16 After such movement, there is no contact terminal on the right half of the ink cartridge chip 160, so the substrate on the right half of the ink cartridge chip 160 can be removed to reduce costs. In some other embodiments, the spacing between the first elastic arm 135 and the second elastic arm 136 in the length direction of the print carriage contact pin holder 115 can also be set to be more than 1 / 10, that is, the spacing between adjacent contact pins in the upper and lower rows is moved toward other terminals, which can also reduce the substrate area of ​​the ink cartridge chip 160.

[0071] Since the terminal connector 130 is provided in this embodiment, the target functional contact pin 116 can be electrically connected to the target connection terminal 163 through the conductive member 131, thereby meeting the use requirement of the ink cartridge chip 160 installed on the inkjet printing device.

[0072] It can be seen that after the terminal connector 130 is installed on the print carriage contact pin holder 115, it can be compatible with two ink cartridge chips with different terminal arrangements, and Fig.16 The second ink cartridge chip shown uses a terminal connector 130 to meet the connection requirements between the target connection terminal 163 and the target function contact pin 116 .

[0073] Second embodiment:

[0074] See also Fig.18 and Fig.19 The ink cartridge of this embodiment is detachably mounted on the printing carriage of the inkjet printing device, and a stylus mounting bracket 210 is provided on one side of the printing carriage. When the ink cartridge is mounted on the printing carriage, the ink cartridge is adjacent to the stylus mounting bracket 210. An ink cartridge chip is provided on one side of the ink cartridge close to the stylus mounting bracket 210, and a plurality of connection terminals are provided on the ink cartridge chip.

[0075] In addition, the stylus mounting frame 210 is provided with a plurality of stylus frame mounting positions 211 , and a printing carriage stylus frame 215 is detachably mounted on each stylus frame mounting position 211 , and a plurality of styluses 216 are mounted on the printing carriage stylus frame 215 .

[0076] A terminal connector 230 is provided on the print carriage contact pin holder 215. Figure 20 to Figure 22 The terminal connector 230 includes a conductive member 231, and the conductive member 231 includes a top wall 232. A first side wall 233 and a second side wall 234 are disposed below the top wall 232. The first side wall 233 and the second side wall 234 are parallel to each other and disposed opposite to each other. When the terminal connector 230 is installed above the print carriage stylus holder 215, the first side wall 233 and the second side wall 234 are located on both sides of the print carriage stylus holder 215, respectively.

[0077] A first elastic arm 235 and a second elastic arm 236 are provided below the first side wall 233. The first elastic arm 235 and the second elastic arm 236 both extend downward from the lower end of the first side wall 233. In the length direction of the print carriage contact pin holder 215, the first elastic arm 235 and the second elastic arm 236 are arranged parallel to each other. In addition, the first elastic arm 235 and the second elastic arm 236 have the same shape, and a winding portion 237 is provided at the end of the first elastic arm 235 to increase the strength of the end of the first elastic arm 235 and extend the service life of the terminal connector 230. The first elastic arm 235 can abut on the target functional contact pin, and the second elastic arm 236 can abut on the target connection terminal.

[0078] Different from the first embodiment, in this embodiment, the terminal connector 230 of this embodiment is not provided with an insulating block, but a positioning portion 240 is provided at the upper end of the conductive member 230, and the positioning portion 240 is provided on one side of the top wall 232 of the conductive member 230, and in the vertical direction, the positioning portion 240 is higher than the top wall 232. Preferably, the positioning portion 240 and the top wall 232 are integrally formed.

[0079] The top wall 232 and the two ends of the positioning portion 240 are respectively abutted against the two end walls of the stylus mounting frame, and the stylus mounting frame is connected to the top wall 232 and the positioning portion 240. Fig.19 The printing carriage contact pin holder 215 is located between the end wall 213 and the end wall 214, the top wall 232 and the positioning portion 240 are located above the printing carriage contact pin holder 215, and one end of the top wall 232 abuts against the end wall 214, and one end of the positioning portion 240 abuts against the end wall 213. Through the positioning of the top wall 232, the positioning portion 240 and the two end walls 213 and 214, the terminal connector 230 is positioned in the length direction, thereby ensuring that the first elastic arm 235 can accurately abut against the target function contact pin 235.

[0080] In addition, since the positioning portion 240 and the conductive member 230 are integrally formed, the positioning portion 240 is also made of metal. However, if the positioning portion 240 contacts other contact pins other than the target functional contact pin, a short circuit will occur between the target functional contact pin and the other contact pins. To avoid this problem, in this embodiment, the positioning portion 240 does not directly contact any contact pin on the print carriage contact pin holder 215. Therefore, the positioning portion 240 is lifted upward above the print carriage contact pin holder 215, so that a gap is formed between at least a portion of the positioning portion 240 and the upper end of the print carriage contact pin holder 215. In addition, a downwardly bent support portion 241 is formed at the end of the positioning portion 240, and the support portion 241 abuts against the upper end of the print carriage contact pin holder 215.

[0081] Since the terminal connector of the utility model is provided with two elastic arms, one of the two elastic arms can abut against the target contact pin, and the other can abut against the target connection terminal of the ink cartridge chip. In the case where the target connection terminal of the ink cartridge chip is not directly opposite to the target contact pin, the terminal connector can be used to achieve electrical connection between the target connection terminal and the target functional contact pin. In addition, the terminal connector can meet the use requirements of installing ink cartridge chips with different terminal arrangements on inkjet printing equipment.

[0082] Finally, it should be emphasized that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various changes and modifications. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A terminal connector of an ink cartridge, which is detachably mounted on a print carriage stylus holder of an inkjet printing device, wherein the print carriage stylus holder is provided with a target function stylus, and an ink cartridge chip of the ink cartridge is provided with a target function terminal; Features: The terminal connector has a conductive member, the conductive member includes a first elastic arm and a second elastic arm, the first elastic arm abuts against a target function contact pin of the printing carriage, and the second elastic arm abuts against a target function terminal on the ink cartridge chip; When the terminal connector and the ink cartridge chip are installed in place, the target function contact pin is electrically connected to the target function terminal.

2. The terminal connector of the ink cartridge according to claim 1, characterized in that: The first elastic arm and the second elastic arm are located on the same side of the printing carriage contact needle holder.

3. The terminal connector of the ink cartridge according to claim 2, characterized in that: In the length direction of the printing carriage contact needle frame, the first elastic arm and the second elastic arm are arranged in parallel.

4. The terminal connector of the ink cartridge according to claim 3, characterized in that: The distance between the first elastic arm and the second elastic arm in the length direction of the printing carriage stylus holder is greater than or equal to 1 / 5 of the total length of the printing carriage stylus holder.

5. The terminal connector of the ink cartridge according to any one of claims 1 to 3, characterized in that: The terminal connector also includes an insulating block, which is limited above the printing carriage contact pin holder; The insulating block is provided with a positioning column, the conductive member is provided with a through hole, and the through hole is sleeved outside the positioning column.

6. The terminal connector of the ink cartridge according to claim 5, characterized in that: A first limiting block is provided on the first side of the insulating block, and a second limiting block is provided on the second side of the insulating block; A first limiting groove is provided on the first side wall where the conductive member matches the first side of the insulating block, and a second limiting groove is provided on the second side wall where the conductive member matches the second side of the insulating block. The opening direction of the first limiting groove is opposite to the opening direction of the second limiting groove.

7. The terminal connector of the ink cartridge according to claim 6, characterized in that: The first limiting block is provided with a guiding slope in the direction in which the conductive member is inserted into the insulating block.

8. The terminal connector of an ink cartridge according to any one of claims 1 to 3, characterized in that: The stylus holder of the printing carriage is installed on the stylus mounting frame; A positioning portion is arranged at the upper end of the conductive member, and two ends of the positioning portion are respectively abutted against two end walls of the stylus mounting frame, and the stylus frame of the printing carriage is located between the two end walls.

9. The terminal connector of the ink cartridge according to claim 8, characterized in that: A gap is formed between at least a portion of the positioning portion and the upper end of the print carriage stylus holder.

10. An inkjet printing device, comprising a body, the body being provided with at least one printing carriage, the printing carriage being detachably mounted with an ink cartridge: The printing carriage is provided with a printing carriage stylus holder, which is characterized in that: The printing carriage contact pin holder is provided with a terminal connector of the ink cartridge as claimed in any one of claims 1 to 9.

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