WO2015098423A1 - サーマルヘッドおよびサーマルプリンタ - Google Patents
サーマルヘッドおよびサーマルプリンタ Download PDFInfo
- Publication number
- WO2015098423A1 WO2015098423A1 PCT/JP2014/081403 JP2014081403W WO2015098423A1 WO 2015098423 A1 WO2015098423 A1 WO 2015098423A1 JP 2014081403 W JP2014081403 W JP 2014081403W WO 2015098423 A1 WO2015098423 A1 WO 2015098423A1
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- WO
- WIPO (PCT)
- Prior art keywords
- connector pin
- substrate
- connector
- housing
- thermal head
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/315—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material
- B41J2/32—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material using thermal heads
- B41J2/335—Structure of thermal heads
- B41J2/33505—Constructional details
- B41J2/3351—Electrode layers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/315—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material
- B41J2/32—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material using thermal heads
- B41J2/335—Structure of thermal heads
- B41J2/33505—Constructional details
- B41J2/3352—Integrated circuits
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/315—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material
- B41J2/32—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material using thermal heads
- B41J2/335—Structure of thermal heads
- B41J2/3354—Structure of thermal heads characterised by geometry
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/315—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material
- B41J2/32—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material using thermal heads
- B41J2/335—Structure of thermal heads
- B41J2/33555—Structure of thermal heads characterised by type
- B41J2/3357—Surface type resistors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/315—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material
- B41J2/32—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material using thermal heads
- B41J2/345—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material using thermal heads characterised by the arrangement of resistors or conductors
Definitions
- the present invention relates to a thermal head and a thermal printer.
- thermal heads have been proposed as printing devices such as facsimiles or video printers.
- a substrate a plurality of heat generating portions provided on the substrate, a plurality of electrodes provided on the substrate and electrically connected to the plurality of heat generating portions, and the substrate being sandwiched and electrically connected to the plurality of electrodes
- a device including a plurality of connector pins connected to a connector and a connector having a housing that accommodates the plurality of connector pins is known (see, for example, Patent Document 1).
- the thermal head sandwiches the substrate, a plurality of heat generating portions provided on the substrate, a plurality of electrodes provided on the substrate and electrically connected to the heat generating portions, and the substrate.
- a plurality of connector pins that are individually electrically connected to the plurality of electrodes, and a connector having a housing that houses the plurality of connector pins. Further, the housing is disposed adjacent to the substrate in the sub-scanning direction. Further, the housing has a support portion arranged below the substrate.
- the thermal head includes a substrate, a plurality of heat generating portions provided on the substrate, a plurality of electrodes provided on the substrate and individually electrically connected to the heat generating portions, and adjacent to the substrate.
- a wiring board having a plurality of wirings arranged to fit to each other and electrically connected to the plurality of electrodes, and a plurality of connector pins sandwiching the wiring board and electrically connected to the plurality of wirings
- a connector having a housing that accommodates the plurality of connector pins. Further, the housing is disposed adjacent to the wiring board in the sub-scanning direction.
- the housing includes a support portion disposed below the wiring board.
- the thermal printer includes the above-described thermal head, a transport mechanism that transports the recording medium onto the plurality of heat generating portions, and a platen roller that presses the recording medium onto the plurality of heat generating portions.
- FIG. 2 is an enlarged view of the vicinity of a connector constituting the thermal head according to the first embodiment, wherein (a) is a plan view and (b) is a bottom view.
- FIG. 4A is a cross-sectional view taken along the line III-III shown in FIG. 4A
- FIG. 2 is an enlarged view of the vicinity of a connector constituting a thermal head according to a second embodiment, where (a) is a plan view and (b) is a bottom view.
- FIG. 10A is an enlarged plan view showing the vicinity of a connector constituting the thermal head according to the second embodiment
- FIG. 10B is a cross-sectional view taken along line VV shown in FIG.
- FIG. 11 (A) is an enlarged plan view showing the vicinity of a connector constituting the thermal head according to the third embodiment, and (b) is a sectional view taken along the line VI-VI shown in FIG. 11 (a).
- the thermal head which concerns on 4th Embodiment is shown, (a) is a perspective view which shows an outline, (b) is the VII-VII sectional view taken on the line in Fig.12 (a).
- (A) is a perspective view of the connector which comprises the thermal head based on 4th Embodiment, (b) is the expansion perspective view seen from the other direction.
- the connector which comprises the thermal head which concerns on 4th Embodiment is shown, (a) is a front view, (b) is a rear view.
- FIG. 4 is an enlarged view of the vicinity of a connector constituting a thermal head according to a fourth embodiment, where (a) is a plan view and (b) is a bottom view.
- FIG. 15A is a perspective view of a connector pin of a connector constituting a thermal head according to the fourth embodiment
- FIG. 15B is a sectional view taken along line VIII-VIII shown in FIG. 15A
- FIG. FIG. 6 is a sectional view taken along line IX-IX shown in (b).
- the thermal head X1 will be described below with reference to FIGS.
- the protective layer 25, the covering layer 27, and the covering member 12 are omitted and shown by a one-dot chain line.
- coated member 12 are abbreviate
- the covering member 12 is omitted and shown by a one-dot chain line.
- the thermal head X1 includes a heat radiating plate 1, a head base 3 disposed on the heat radiating plate 1, and a connector 31 connected to the head base 3.
- the heat radiating plate 1 has a rectangular parallelepiped shape and has a base portion 1a on which the substrate 7 is placed.
- a substrate 10 and a housing 10 for a connector 31 are disposed above the heat sink 1.
- the heat radiating plate 1 is made of, for example, a metal material such as copper, iron, or aluminum, and has a function of radiating heat that does not contribute to printing out of heat generated in the heat generating portion 9 of the head base 3. . Further, the head base 3 is bonded to the upper surface of the base portion 1a by a double-sided tape or an adhesive (not shown).
- the head base 3 is formed in a rectangular shape in plan view, and each member constituting the thermal head X1 is provided on the substrate 7 of the head base 3.
- the head base 3 has a function of printing on a recording medium (not shown) in accordance with an electric signal supplied from the outside.
- the connector 31 includes a plurality of connector pins 8 and a housing 10 that stores the plurality of connector pins 8.
- One of the plurality of connector pins 8 is exposed to the outside of the housing 10, and the other is accommodated inside the housing 10.
- the plurality of connector pins 8 have a function of ensuring electrical continuity between various electrodes of the head base 3 and a power source provided outside, and each is electrically independent.
- the substrate 7 is disposed on the base 1a of the heat radiating plate 1 and has a rectangular shape in plan view. Therefore, the substrate 7 has one long side 7a, the other long side 7b, one short side 7c, and the other short side 7d. Moreover, it has the side surface 7e in the other long side 7b side.
- the substrate 7 is formed of, for example, an electrically insulating material such as alumina ceramic or a semiconductor material such as single crystal silicon.
- a heat storage layer 13 is formed on the upper surface of the substrate 7.
- the heat storage layer 13 includes a base portion 13a and a raised portion 13b.
- the base portion 13 a is formed over the left half of the upper surface of the substrate 7.
- the base portion 13a is provided in the vicinity of the heat generating portion 9, and is disposed below a protective layer 25 described later.
- the raised portion 13b extends in a band shape along the arrangement direction of the plurality of heat generating portions 9, and has a substantially semi-elliptical cross section.
- the raised portion 13b functions to favorably press a recording medium (not shown) to be printed against the protective layer 25 formed on the heat generating portion 9.
- the heat storage layer 13 is made of glass having low thermal conductivity, and temporarily stores part of the heat generated in the heat generating portion 9. Therefore, the time required to raise the temperature of the heat generating part 9 can be shortened, and it functions to improve the thermal response characteristics of the thermal head X1.
- the heat storage layer 13 is formed, for example, by applying a predetermined glass paste obtained by mixing a glass powder with an appropriate organic solvent onto the upper surface of the substrate 7 by screen printing or the like known in the art, and baking it.
- the electrical resistance layer 15 is provided on the upper surface of the heat storage layer 13, and on the electrical resistance layer 15, the connection terminal 2, the ground electrode 4, the common electrode 17, the individual electrode 19, the first connection electrode 21, and the second A connection electrode 26 is provided.
- the electrical resistance layer 15 is patterned in the same shape as the connection terminal 2, the ground electrode 4, the common electrode 17, the individual electrode 19, the first connection electrode 21, and the second connection electrode 26, and the common electrode 17 and the individual electrode 19 are patterned.
- an exposed region where the electric resistance layer 15 is exposed As shown in FIG. 1, the exposed regions of the electrical resistance layer 15 are arranged in a row on the raised portions 13 b of the heat storage layer 13, and each exposed region constitutes the heat generating portion 9.
- the plurality of heat generating portions 9 are illustrated in a simplified manner in FIG. 1, but are arranged at a density of 100 dpi to 2400 dpi (dot per inch), for example.
- the electric resistance layer 15 is made of a material having a relatively high electric resistance, such as TaN, TaSiO, TaSiNO, TiSiO, TiSiCO, or NbSiO. Therefore, when a voltage is applied to the heat generating portion 9, the heat generating portion 9 generates heat due to Joule heat generation.
- connection terminal 2 As shown in FIGS. 1 and 2, the connection terminal 2, the ground electrode 4, the common electrode 17, the plurality of individual electrodes 19, the first connection electrode 21, and the second connection electrode 26 are provided on the upper surface of the electrical resistance layer 15. It has been.
- the connection terminal 2, the ground electrode 4, the common electrode 17, the individual electrode 19, the first connection electrode 21, and the second connection electrode 26 are formed of a conductive material, for example, aluminum, gold, silver And any one metal of copper or an alloy thereof.
- the common electrode 17 includes main wiring portions 17a and 17d, a sub wiring portion 17b, and a lead portion 17c.
- the main wiring portion 17 a extends along the long side of one side 7 a of the substrate 7.
- the sub wiring part 17b extends along one short side 7c and the other short side 7d of the substrate 7, respectively.
- the lead portion 17c extends individually from the main wiring portion 17a toward each heat generating portion 9.
- the main wiring portion 17 d extends along the other long side 7 b of the substrate 7.
- the common electrode 17 electrically connects the plurality of heat generating portions 9 and the connector 31.
- the main wiring part 17a may be a thick electrode part (not shown) thicker than other parts of the common electrode 17. Thereby, the electric capacity of the main wiring portion 17a can be increased.
- the plurality of individual electrodes 19 are electrically connected between the heat generating portion 9 and the drive IC 11.
- the individual electrode 19 divides the plurality of heat generating portions 9 into a plurality of groups, and electrically connects the heat generating portions 9 of each group and the drive IC 11 provided corresponding to each group.
- the plurality of first connection electrodes 21 are electrically connected between the drive IC 11 and the connector 31.
- the plurality of first connection electrodes 21 connected to each drive IC 11 are configured by a plurality of wirings having different functions.
- the ground electrode 4 is disposed so as to be surrounded by the individual electrode 19, the first connection electrode 21, and the main wiring portion 17 d of the common electrode 17, and has a wide area.
- the ground electrode 4 is held at a ground potential of 0 to 1V.
- connection terminal 2 is provided on the other long side 7 b side of the substrate 7 in order to connect the common electrode 17, the individual electrode 19, the first connection electrode 21 and the ground electrode 4 to the connector 31.
- the connection terminal 2 is provided corresponding to the connector pin 8, and when connecting to the connector 31, the connector pin 8 and the connection terminal 2 are connected so as to be electrically independent from each other.
- the plurality of second connection electrodes 26 are electrically connected to adjacent drive ICs 11.
- the plurality of second connection electrodes 26 are provided so as to correspond to the first connection electrodes 21, respectively, and transmit various signals to the adjacent drive ICs 11.
- the electrical resistance layer 15, the connection terminal 2, the common electrode 17, the individual electrode 19, the ground electrode 4, the first connection electrode 21, and the second connection electrode 26 may be formed by forming a material layer on the heat storage layer 13.
- the laminated body is processed into a predetermined pattern using a conventionally well-known photoetching or the like.
- the connection terminal 2, the common electrode 17, the individual electrode 19, the ground electrode 4, the first connection electrode 21, and the second connection electrode 26 can be simultaneously formed by the same process.
- the drive IC 11 is disposed corresponding to each group of the plurality of heat generating units 9, and is connected to the other end of the individual electrode 19 and one end of the first connection electrode 21. Yes.
- the drive IC 11 has a function of controlling the energization state of each heat generating unit 9.
- a switching member having a plurality of switching elements inside may be used as the drive IC 11.
- the drive IC 11 is connected to the individual electrode 19, the second connection electrode 26 and the first connection electrode 21 to protect the drive IC 11 and to protect the connection portion between the drive IC 11 and these wirings.
- a coating resin 29 made of a resin such as a silicone resin.
- a protective layer 25 is formed on the heat storage layer 13 formed on the upper surface of the substrate 7 to cover the heat generating portion 9, a part of the common electrode 17 and a part of the individual electrode 19. ing.
- the protective layer 25 protects the area covered with the heat generating portion 9, the common electrode 17 and the individual electrode 19 from corrosion due to adhesion of moisture or the like contained in the atmosphere, or wear due to contact with the recording medium to be printed. belongs to.
- the protective layer 25 can be formed using SiN, SiO 2 , SiON, SiC, diamond-like carbon, or the like, and the protective layer 25 may be formed of a single layer or may be formed by stacking these layers. May be.
- Such a protective layer 25 can be produced using a thin film forming technique such as sputtering or a thick film forming technique such as screen printing.
- a coating layer 27 that partially covers the common electrode 17, the individual electrode 19, and the first connection electrode 21 is provided on the substrate 7.
- the coating layer 27 is formed by oxidizing the region covered with the common electrode 17, the individual electrode 19, the second connection electrode 26, and the first connection electrode 21 by contact with the atmosphere or adhesion of moisture contained in the atmosphere. It is intended to protect against corrosion.
- the covering layer 27 is preferably formed so as to overlap the end portion of the protective layer 25 as shown in FIG. 2 in order to ensure the protection of the common electrode 17 and the individual electrode 19.
- the covering layer 27 can be formed of a resin material such as an epoxy resin or a polyimide resin by using a thick film forming technique such as a screen printing method.
- the covering layer 27 is formed with an opening 27 a for exposing the individual electrode 19, the second connection electrode 26, and the first connection electrode 21 connected to the driving IC 11. These wirings exposed from the opening 27a are connected to the driving IC 11.
- the coating layer 27 is provided with an opening 27 b for exposing the connection terminal 2 on the other long side 7 b side of the substrate 7. The connection terminal 2 exposed from the opening 27b is electrically connected to the connector pin 8.
- the connector 31 includes a plurality of connector pins 8 and a housing 10 that houses the plurality of connector pins 8. A part of the connector pin 8 is embedded in the housing 10.
- the connector pin 8 includes a first connector pin 8a, a second connector pin 8b, a third connector pin 8c, and a fourth connector pin 8d.
- the connector pin 8 at least the first connector pin 8a and the second connector pin 8b are connected by the third connector pin 8c, and the first connector pin 8a and the second connector pin 8b form a sandwiching portion 8e. ing.
- a plurality of connector pins 8 are arranged at intervals in the main scanning direction, and adjacent connector pins 8 are electrically insulated.
- the first connector pin 8a is disposed on the connection terminal 2 (see FIG. 1).
- the second connector pins 8 b are disposed below the substrate 7 of the head base 3.
- the head base 3 is held by a holding portion 8e formed by the first connector pin 8a and the second connector pin 8b.
- the third connector pin 8c is connected by the first connector pin 8a and the second connector pin 8b, and is provided so as to extend in the thickness direction.
- the fourth connector pin 8d is pulled out in a direction away from the head base 3, and is provided continuously from the second connector pin 8b.
- the clamping portion 8e is formed by the first connector pin 8a and the second connector pin 8b, and the head base 3 and the connector 31 are electrically and mechanically connected by clamping the head base 3. Yes.
- the connector 31 and the head base 3 are connected to each other by inserting the head base 3 into the clamping portion 8 e of the connector pin 8.
- the housing 10 can be formed of an insulating member.
- the housing 10 can be formed of a resin such as PA (polyamide), PBT (polybutylene terephthalate), LCP (liquid crystal polymer), nylon 66, and glass-filled nylon 66. it can.
- the housing 10 has a box shape and has a function of storing each connector pin 8 in an electrically independent state.
- a socket is inserted into the opening of the housing 10 from the outside, and electricity is supplied to the head base 3 by attaching and detaching a socket (not shown) provided outside.
- the housing 10 includes an upper wall 10a, a lower wall 10b, a side wall 10c, a front wall 10d, a positioning portion 10f, and a support portion 10g.
- the housing 10 forms an opening on the fourth connector pin 8d side of the connector pin 8 by an upper wall 10a, a lower wall 10b, a side wall 10c, and a front wall 10d.
- the positioning portion 10f has a function of positioning the inserted head base 3. Since the housing 10 includes the positioning portion 10f, the head base 3 is not abutted against the third connector pin 8c of the connector pin 8, and the possibility that the connector pin 8 is bent and damaged is reduced. it can.
- the support portion 10g is provided in a state of protruding from the side wall 10c toward the lower side of the substrate 7, and the support portion 10g and the substrate 7 are disposed in a separated state. For this reason, a space 14 is formed between the support portion 10 g and the substrate 7. Further, the support portion 10 g protrudes from the housing 10 rather than the connector pin 8. Therefore, the possibility that the connector pin 8 comes into contact with the outside can be reduced, and the possibility that the connector pin 8 is damaged can be reduced.
- the connector 31 when the connector 31 is fixed to the head base 3 by clamping the substrate 7 with the clamping portion 8e of the connector pin 8, when an external force (particularly a vertical force) is generated in the housing 10, the connector pin 8 May peel from the connection terminal 2 and the electrical connection may be interrupted.
- the thermal head X1 has a configuration in which the housing 10 is disposed so as to be adjacent to the substrate 7 in the sub-scanning direction, and the housing 10 includes a support portion 10g disposed below the substrate 7. Therefore, when an external force is generated in the housing 10 in the downward direction, the support portion 10g is brought into contact with the substrate 7, and the downward rotational moment generated in the housing 10 can be reduced. Thereby, possibility that the connector pin 8 will peel from the connection terminal 2 can be reduced.
- the protruding length of the support portion 10g from the housing 10 is longer than the protruding length of the second connector pin 8b from the housing 10. Accordingly, even when an external force is generated in the housing 10 and a downward rotation moment is generated, the support portion 10g is likely to come into contact with the substrate 7. As a result, the downward rotational moment generated in the housing 10 is alleviated, and the possibility that the connector 31 rotates can be reduced.
- the thermal head X1 has a structure in which the housing 10 has a box shape and has support portions 10g on side walls 10c located at both ends of the housing 10 in the main scanning direction. For this reason, the support portion 10 g comes into contact with the substrate 7 at both ends of the housing 10 in the main scanning direction.
- the thermal head X1 has a configuration in which the substrate 7 and the support portion 10g are separated from each other, and a space 14 is provided between the substrate 7 and the support portion 10g. Thereby, even if thermal expansion occurs in the support portion 10g, the substrate 7 is not affected. As a result, the flatness of the substrate 7 can be ensured.
- the connector 31 and the head base 3 are fixed by the connector pin 8, the bonding material 23, and the covering member 12.
- the connector pin 8 is disposed on the connection terminal 2 of the ground electrode 4 and the connection terminal 2 of the first connection electrode 21.
- the connection terminal 2 and the connector pin 8 are mechanically and electrically connected by a bonding material 23.
- the covering member 12 is provided so as to cover the connector 31 connected by the bonding material 23 and the first connector pin 8 a of the head base 3.
- Examples of the bonding material 23 include solder or an anisotropic conductive adhesive in which conductive particles are mixed in an electrically insulating resin. In the present embodiment, description will be made using solder.
- the connector pin 8 is electrically connected to the connection terminal 2 by being covered with the bonding material 23.
- a plating layer (not shown) made of Ni, Au, or Pd may be provided between the bonding material 23 and the connection terminal 2.
- the covering member 12 can be formed of, for example, an epoxy-based thermosetting resin, an ultraviolet curable resin, or a visible light curable resin.
- the thermal head X1 inserts the head base 3 between the first connector pin 8a and the second connector pin 8b.
- the support portion 10 g functions as a guide for guiding the passage of the head base 3.
- the head base 3 is inserted to the positioning portion 10 f of the housing 10.
- the first connector pin 8a is disposed on a connection terminal (not shown).
- the bonding material 23 is applied to each of the first connector pins 8 a, and the connector pins 8 and the head base 3 are connected by the bonding material 23.
- substrate 3 with which the connector 31 was joined is mounted on the heat sink 1 with which the double-sided tape etc. were provided.
- the thermal head X1 is producible by apply
- the covering member 12 is disposed on the upper surface of the first connector pin 8a, the upper wall 10a of the housing 10, the support portion 10g, and the head base 3. As a result, the first connector pin 8a can be sealed, and even when an external force is generated in the connector 31 in an upward direction, the covering member 12 reduces the upward rotational moment generated in the connector 31. It is possible to reduce the possibility that the connector 31 rotates.
- the covering member 12 is disposed between the adjacent connector pins 8. Thereby, it is possible to suppress the displacement of the connector 31 in the main scanning direction.
- the covering member 12 is disposed between the side wall 10 c and the connector pin 8. Thereby, it is possible to suppress the displacement of the connector 31 in the main scanning direction.
- the covering member 12 is disposed in a space 14 surrounded by the support portion 10 g and the substrate 7.
- the covering member 12 disposed in the space 14 is formed on the lower surface of the head base 3.
- the covering member 12 is arranged in the space 14 to reduce the pressing force applied from the support portion 10g. This can reduce the possibility of damage to the head base 3 or the support portion 10g. Even in such a case, the support portion 10g has a reaction due to the support portion 10g pressing the covering member 12, and the upward moment generated in the support portion 10g can be reduced.
- the covering member 12 is provided in the space 16 between the connector pin 8 and the head base 3. Thereby, the bonding area between the head base 3 and the housing 10 can be increased, and the bonding strength between the head base 3 and the housing 10 can be improved.
- the covering member 12 is disposed in a space 18 surrounded by the substrate 7, the support portion 10g, and the second connector pins 8b adjacent to the support portion 10g. Thereby, the joint strength between the substrate 7 and the support portion 10g can be improved. Further, even when an external force is generated in the left-right direction with respect to the housing 10, the rotational moment generated in the left-right direction in the housing 10 can be reduced by the covering member 12 disposed in the space 18.
- the covering member 12 arranged in the space 18 has a tapered shape from the tip of the second connector pin 8b toward the housing 10. In other words, the amount of the covering member 12 disposed around the second connector pin 8 b gradually increases from the protruding tip of the second connector pin 8 b toward the housing 10.
- the support part 10g is arrange
- the support part 10g was provided in the side wall 10c was shown, it does not necessarily need to be provided in the side wall 10c.
- substrate 7 and the support part 10g do not need to be spaced apart.
- the covering member 12 may not be disposed between the substrate 7 and the support portion 10g.
- the thermal printer Z1 of the present embodiment includes the thermal head X1, the transport mechanism 40, the platen roller 50, the power supply device 60, and the control device 70 described above.
- the thermal head X1 is attached to an attachment surface 80a of an attachment member 80 provided in a housing (not shown) of the thermal printer Z1.
- the thermal head X1 is attached to the attachment member 80 so as to be along a main scanning direction which is a direction orthogonal to the conveyance direction S of the recording medium P described later.
- the transport mechanism 40 includes a drive unit (not shown) and transport rollers 43, 45, 47, and 49.
- the transport mechanism 40 transports a recording medium P such as thermal paper or image receiving paper onto which ink is transferred in the direction of arrow S in FIG. 8, and on the protective layer 25 positioned on the plurality of heat generating portions 9 of the thermal head X1. It is for carrying.
- the drive unit has a function of driving the transport rollers 43, 45, 47, and 49, and for example, a motor can be used.
- the transport rollers 43, 45, 47, and 49 cover cylindrical shaft bodies 43a, 45a, 47a, and 49a made of metal such as stainless steel with elastic members 43b, 45b, 47b, and 49b made of butadiene rubber, for example. Can be configured.
- the recording medium P is an image receiving paper or the like to which ink is transferred, an ink film is transported together with the recording medium P between the recording medium P and the heat generating portion 9 of the thermal head X1.
- the platen roller 50 has a function of pressing the recording medium P onto the protective film 25 located on the heat generating portion 9 of the thermal head X1.
- the platen roller 50 is disposed so as to extend along a direction orthogonal to the conveyance direction S of the recording medium P, and both ends thereof are supported and fixed so as to be rotatable while the recording medium P is pressed onto the heat generating portion 9. ing.
- the platen roller 50 can be configured by, for example, covering a cylindrical shaft body 50a made of metal such as stainless steel with an elastic member 50b made of butadiene rubber or the like.
- the power supply device 60 has a function of supplying a current for causing the heat generating portion 9 of the thermal head X1 to generate heat and a current for operating the driving IC 11 as described above.
- the control device 70 has a function of supplying a control signal for controlling the operation of the drive IC 11 to the drive IC 11 in order to selectively heat the heat generating portion 9 of the thermal head X1 as described above.
- the thermal printer Z1 presses the recording medium P onto the heat generating part 9 of the thermal head X1 by the platen roller 50, and conveys the recording medium P onto the heat generating part 9 by the conveying mechanism 40.
- the heat generating unit 9 is selectively heated by the power supply device 60 and the control device 70 to perform predetermined printing on the recording medium P.
- the recording medium P is an image receiving paper or the like
- printing is performed on the recording medium P by thermally transferring ink of an ink film (not shown) conveyed together with the recording medium P to the recording medium P.
- the thermal head X2 will be described with reference to FIGS.
- the same members as those of the thermal head X1 are denoted by the same reference numerals, and so on.
- the housing 110 includes an upper wall 10a, a lower wall 10b, a side wall 10c, a front wall (not shown), and a support portion 10g, and includes a protruding portion 110e, a notch portion 110i, and a damming portion 110h. It has more.
- the protrusion 110e is disposed between the adjacent connector pins 8 in plan view. Further, the projecting portion 110 e is also disposed between the side wall 10 c and the connector pin 8.
- the protruding portion 10 c extends from the front wall of the housing 10 toward the head base 3 side.
- the thermal head X2 has a configuration in which the housing 110 has a protruding portion 110e that protrudes between adjacent first connector pins 8a in plan view. Thereby, when the covering member 12 is applied from the upper wall 10a side, the possibility of the covering member 12 flowing downward by the projecting portion 110e can be reduced.
- the covering member 12 can stay on the upper portion of the housing 110 by the projecting portion 110e blocking the covering member 12. As a result, the possibility that the covering member 12 is insufficient at the upper portion of the housing 110 can be reduced, and the connector pin 8 can be sealed.
- the thermal head X2 has a configuration in which the width Wa of the protruding portion 110e adjacent to the side wall 10e is smaller than the width Wb of the protruding portion 110e disposed between the adjacent first connector pins 8a.
- the covering member 12 when the covering member 12 is applied, a part of the covering member 12 flows downward through the space 20.
- the covering member 12 that has flowed downward spreads along the support portion 10g and is disposed around the support portion 10g.
- the covering member 12 can be disposed around the support portion 10g, and the bonding strength between the support portion 10g and the head base 3 can be improved. Therefore, the possibility that the connector pin 8 is peeled off from the connection terminal 2 (see FIG. 1) can be reduced.
- the width (length in the main scanning direction) of the notch 10i is preferably 0.1 to 0.3 mm.
- the first connector pin 8a can be sealed by the covering member 12 while suppressing the covering member 12 from flowing downward.
- the width Wa of the protrusion 110e is preferably 50 to 100% of the width Wb of the protrusion 110e.
- the support part 110g is provided with a damming part 110h.
- the dam portion 110h protrudes from the support portion 110g toward the central portion in the main scanning direction, and is connected to the lower end of the support portion 110g. Therefore, as shown in FIG. 10B, the support part 110g and the damming part 110h are L-shaped in a cross-sectional view.
- the support portion 110g includes a damming portion 110h. Therefore, the covering member 12 that has flowed out from above can be blocked by the blocking portion 110 h, and the possibility that the covering member 12 flows out of the connector 31 can be reduced. Therefore, the possibility that the amount of the covering member 12 is insufficient can be reduced.
- the covering member 12 that has flowed out from the upper surface of the housing 110 is partially disposed in the gap 14 and partially disposed on the damming portion 110h.
- the bonding strength between the support portion 110g and the substrate 7 can be improved, and the bonding strength between the damming portion 110h and the substrate 7 can also be improved.
- the width Wc of the blocking portion 110h is wider than the width Wa of the protruding portion 110e. Therefore, the covering member 12 that has flowed out of the space 20 can be blocked by the blocking portion 110h, and the outflow of the covering member 12 can be suppressed.
- the width Wc of the blocking portion 110h is preferably wider than the width Wb of the protruding portion 110e. That is, the width Wc of the blocking portion 110h is preferably wider than the distance between the side wall 10c and the connector pin 8. Thereby, the covering member 12 that has flowed out of the space 20 can be reliably dammed by the damming portion 110h, and the outflow of the covering member 12 can be suppressed.
- the covering member 12 can be supplied downward via the space 20.
- the thermal head X3 will be described with reference to FIG.
- the thermal head X3 is different in the shape of the connector 231 from the connector 131 of the thermal head X2.
- Other points are the same as those of the connector 131, and a description thereof will be omitted.
- the housing 210 is provided with notches 20i in all the protrusions 210e.
- the notches 20i are provided on both sides of the protrusion 210e in the main scanning direction, and the notches 201i are provided on the substrate 7 side. Therefore, a space 20 is formed between the substrate 7 and the protruding portion 210e.
- the covering member 12 when the covering member 12 is applied, a part of the covering member 12 flows downward through the space 20. Thereby, the covering member 12 can be supplied between the substrate 7 and the protruding portion 210e, and the connection strength between the substrate 7 and the housing 210 can be improved.
- the cutout portion 210i is provided in an inclined state with respect to the connector pin 8 in plan view.
- the covering member 12 can be efficiently supplied to the space 16 between the substrate 7 and the connector pin 8, and the connection strength between the substrate 7 and the housing 210 can be improved.
- the tip of the support portion 210g is abutted against the side surface 1b of the heat radiating plate 1. Therefore, it is possible to reduce the possibility that the friction force due to the contact with the recording medium (not shown) is generated on the substrate 7 and the substrate 7 is displaced from the heat radiating plate 1.
- the frictional force generated on the substrate 7 acts on the right side shown in FIG.
- the support portion 210g hits the side surface 1b, the displacement of the substrate 7 to the right side can be suppressed, and the possibility that the substrate 7 is displaced from the heat radiating plate 1 can be reduced.
- the thermal head X4 will be described with reference to FIGS.
- FIG. 12A the configuration of the head base 303, the wiring board 305, and the connector 331 is schematically shown, and the coating resin 329 is not shown.
- FIG. 15B the second covering member 320 is indicated by a one-dot chain line.
- the thermal head X4 includes a heat radiating plate 301, a head base 303, a wiring board 305, and a connector 331. Although omitted in FIG. 12A, each member for causing the heat generating portion 15 to generate heat is provided.
- the wiring board 305 is provided with wiring (not shown), and the wiring is electrically connected to various electrodes of the head base 303.
- a plurality of driving ICs 311 are provided on the wiring board 305.
- the drive IC 311 is electrically connected to various electrodes of the head base 303 by wires, and is electrically connected to the wires of the wiring board 305 by wires.
- the coating resin 329 is provided so as to cover the driving IC 311 and covers a part of the head base 303, the driving IC 311 and a part of the wiring board 305. Therefore, the head base 303 and the wiring board 305 are joined by the coating resin 329.
- the wiring board 305 is provided with a connector 331 at the center in the main scanning direction.
- the connector pin 308 (see FIG. 13) of the connector 331 is electrically connected to the wiring of the wiring board 305.
- the connector pin 308 is joined by the covering member 312.
- the connector pin 308 and the wiring are joined by the joining material 23 in the same manner as the thermal head X1. Therefore, the head base 303, the wiring board 305, and the connector 331 are integrated by the bonding material 23 and the covering member 312.
- the connector 331 includes a plurality of connector pins 308 and a housing 310 that houses the plurality of connector pins 308.
- the housing 310 is disposed adjacent to the wiring board 305 in the sub-scanning direction, and includes a support portion 310g disposed below the wiring board 305.
- the support portion 310g is brought into contact with the wiring board 305, and the upward rotational moment generated in the housing 310 can be reduced. Thereby, the possibility that the connector pin 308 is peeled from the wiring can be reduced.
- the connector pin 308 includes a first connector pin 308a, a second connector pin 308b, a third connector pin 308c, and a fourth connector pin 308d.
- the connector pin 308 is formed integrally with a first connector pin 308a to a fourth connector pin 308d.
- the first connector pins 308a are arranged on the wiring of the wiring board 305.
- the second connector pin 308b is disposed below the wiring board 305, and the wiring board 305 is sandwiched between the first connector pin 308a and the second connector pin 308b.
- the third connector pin 308c connects the first connector pin 308a and the second connector pin 308b, and is provided so as to extend in the thickness direction of the wiring board 305.
- the fourth connector pin 308 d is pulled out in a direction away from the wiring board 305 and joined to the housing 310.
- the second connector pin 308b has a first part 308b1 and a second part 308b2.
- the first portion 308b1 extends in a direction away from the third connector pin 308c.
- the second part 308b2 is provided continuously from the first part 308b1, and extends in a direction approaching the third connector pin 308c while being inclined with respect to the first part 308b1.
- the second portion 308 b 2 has a contact portion 308 b 3, and the contact portion 308 b 3 is in contact with the substrate 307.
- the first part 308b1 and the second part 308b2 are continuously formed, and the connection region between the first part 308b1 and the second part 308b2 has a curved shape.
- the wiring board 305 is inserted, the wiring board 305 is sandwiched between the first connector pins 308a and the second connector pins 308b while the second connector pins 308b are elastically deformed.
- the second connector pin 308b protrudes from the wiring board 305 more than the first connector pin 308a, and the contact portion 308b2 is disposed closer to the third connector pin 308c than the tip of the first connector pin 308a.
- the wiring board 305 comes into contact with the second connector pin 308b before the first connector pin 308a.
- the possibility that the first connector pins 308a and the wiring board 305 come into contact with each other and the wiring is cut by the first connector pins 308a Therefore, the possibility that the first part connector pin 308a breaks the wiring provided on the wiring board 305 can be reduced, and electrical connection with the outside of the thermal head X4 can be ensured.
- the contact portion 308b3 is disposed on the third connector pin 308c side with respect to the tip of the first connector pin 308a. Therefore, the wiring board 305 can be held between the first connector pins 308a and the contact portions 308b3, and the mechanical connection between the wiring board 305 and the connector 331 can be strengthened.
- the second connector pin 308b can be elastically deformed. Therefore, when the wiring board 305 is inserted, the second connector pin 308b is deformed downward, and the wiring board 305 can be inserted in a state where the first connector pin 308a and the wiring board 305 leave a space. . Therefore, the possibility that the wiring of the wiring board 305 is damaged can be reduced.
- the second connector pin 308b is configured to be elastically deformable, the second connector pin 308b can be deformed so as to absorb the external force even when an external force in the vertical direction is generated in the housing 310. Thereby, the rotational moment which arises in the housing 310 can be relieved, and possibility that the 1st connector pin 308a will peel from wiring can be reduced.
- the covering member 312 includes a first covering member 312a and a second covering member 312b.
- the first covering member 312a is provided on the first connector pin 308a.
- the second covering member 312b is provided on the second connector pin 308b.
- the first covering member 312a is provided so as to cover the first connector pin 308a.
- the second covering member 312b is provided so that a part of the second connector pin 308b is exposed.
- the hardness of the second covering member 312b is smaller than the hardness of the first covering member 312a.
- the first covering member 312a can be formed of, for example, an epoxy-based thermosetting resin, and preferably has a Shore D hardness of D80 to 100.
- the thermal expansion coefficient is preferably 10 to 20 ppm at room temperature.
- the second covering member 312b can be formed of, for example, an epoxy-based thermosetting resin, and preferably has a Shore D hardness of D60 to 80.
- the thermal expansion coefficient is preferably 60 to 100 ppm at room temperature.
- the hardness of the first covering member 312a and the second covering member 312b can be measured by, for example, a durometer (type D) of JIS K 6253.
- the durometer can be measured at any three points of the first covering member 312a, and the average value thereof can be taken as the hardness of the first covering member 312a.
- the first connector pin 308a is electrically and mechanically connected to the wiring by the bonding material 23.
- the second connector pin 308b is only in contact with the substrate 7 by the contact portion 308b3, and the bonding strength with the wiring substrate 305 is weaker than that of the first connector pin 308a. .
- the connector pin 308 may be deformed due to thermal expansion of the housing 310 due to heat generated when the thermal head X4 is driven. At this time, since the first connector pin 308a is fixed to the wiring by the bonding material 23, the second connector pin 30b is easily deformed. Thereby, the second covering member 312b located around the second connector pin 308b may be peeled off.
- the thermal head X4 has a configuration in which the hardness of the second covering member 312b is smaller than the hardness of the first covering member 312a. Therefore, even when thermal expansion occurs in the connector pin 308, the hardness of the second covering member 312b located around the second connector pin 308b is smaller than the hardness of the first covering member 312a.
- the second covering member 312b can follow the deformation of the pin 308b.
- the stress generated in the second covering member 312b can be relaxed, the possibility that the second covering member 312b is peeled off can be reduced, and the bonding strength of the connector 331 can be ensured. Therefore, the possibility that the connector 331 peels from the wiring board 305 can be reduced.
- the first covering member 312a covers the first connector pin 308a
- the second covering member 312b is disposed on the second connector pin 308b with a part of the second connector pin 308b exposed. Has been. Therefore, it becomes difficult to inhibit the deformation of the second connector pin 308b, and the stress generated in the second covering member 312b can be relaxed.
- the electrical connection between the thermal head X4 and the outside is performed by attaching / detaching a socket to / from the opening of the housing 310.
- a socket When the socket is attached or detached, an external force is generated in the thickness direction, sub-scanning direction, or main-scanning direction of the housing 310, and the housing 310 may be damaged.
- a large external force is likely to be generated in the housing 310 in the main scanning direction.
- the first covering member 312a moves away from the wiring board 305 in plan view from the first portion 312a1 provided on the housing 310.
- a second portion 312a2 protruding from the first portion 312a1 is provided in the direction.
- the thickness of the upper surface 310a of the housing 310 can be reinforced by the thickness of the second portion 312a2.
- the second portion 312a2 can reinforce the housing 310, and even if an external force is generated in the housing 310, the possibility that the housing 310 is damaged can be reduced. As a result, the possibility that the connector 331 is damaged can be reduced.
- the thermal head X4 has a configuration in which the second portion 312a2 is disposed at both ends of the housing 310 in the main scanning direction. Therefore, the second portion 312a2 can reinforce both end portions of the housing 310 in the main scanning direction. Thereby, when pulling out the socket from the housing 310, the possibility that the housing 310 is damaged can be reduced.
- the second covering member 312b is provided on the second connector pin 308b and is provided to extend in the main scanning direction.
- the second covering member 312b is provided so as to cover the contact portion 308b3 of the second connector pin 308b, and the first portion 308b1 of the second connector pin 308b is provided in an exposed state.
- the second covering member 312b is provided between the support portion 310g and the wiring board 305. Thereby, the joining strength between the wiring board 305 and the connector 331 can be improved.
- the second covering member 312 b is provided between the support portion 310 g and the heat radiating plate 301, and the housing 310 is abutted against the heat radiating plate 301. That is, the thermal head X4 is disposed such that the housing 310 is adjacent to the side surface 301e of the heat radiating plate 310, and the support portion 310g and the side surface 301e are connected by the second covering member 312b.
- the housing 310 since the housing 310 is in contact with the side surface 301b of the heat radiating plate 301 via the second covering member 312b, the housing 310 is not easily displaced from the heat radiating plate 301 in the main scanning direction. Therefore, even when an external force is generated in the housing 310, the possibility that the housing 310 is displaced in the main scanning direction can be reduced.
- the second covering member 312b joins the support portion 310g and the side surface 301b. Therefore, the internal stress of the housing 310 caused by the difference in thermal expansion coefficient between the housing 310 and the heat radiating plate 301 can be reduced. Thereby, the deformation amount generated in the housing 310 can be reduced. As a result, the possibility that the housing 310 is damaged can be reduced.
- the wiring board 305 and the connector 331 are bonded using the bonding material 23.
- the first covering member 312a is applied by screen printing or a dispenser and dried so as to cover the first connector pins 308a and the wiring.
- the second covering member 312b applied to the end surface of the support portion 331g of the connector 331
- the support portion 331g is placed on the heat dissipation plate 301 provided with a double-sided tape or the like so that the support portion 331g contacts the side surface 301b of the heat dissipation plate 301
- the wiring board 305 is mounted.
- the head base 303 is placed on the heat radiating plate 301 so as to be adjacent to the wiring board 305, and the head base 303 and the wiring board 305 are electrically connected by a wire by a wire bonding method.
- a coating resin 329 is applied or cured by printing or a dispenser so as to cover the driving IC 311.
- the first covering member 312a and the second covering member 312b may be applied and cured after the head base 303 and the wiring board 305 are joined to the heat sink 301.
- the present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.
- the thermal printer Z1 using the thermal head X1 according to the first embodiment is shown, but the present invention is not limited to this, and the thermal heads X2 to X4 may be used for the thermal printer Z1.
- a plurality of thermal heads X1 to X4 may be combined.
- thermal heads X1 to X5 the example in which the connector 31 is arranged at the center in the arrangement direction is shown, but it may be provided at both ends in the arrangement direction.
- the support part 10g illustrated the rectangular shape as viewed from the side, it may not be rectangular.
- the support portion 10g may have a semicircular shape or a semielliptical shape as viewed from the side.
- the heat generating portion 9 of the electric resistance layer 15 may be disposed on the base portion 13 a of the heat storage layer 13 without forming the raised portion 13 b in the heat storage layer 13. Further, the heat storage layer 13 may be provided over the entire upper surface of the substrate 7.
- the heat generating portion 9 may be configured by forming the common electrode 17 and the individual electrode 19 on the heat storage layer 13 and forming the electric resistance layer 15 only in the region between the common electrode 17 and the individual electrode 19. Good.
- the thin film head of the heat generating portion 9 is illustrated by forming the electric resistance layer 15 as a thin film, the present invention is not limited to this.
- the present invention may be used for a thick film head of the heat generating portion 9 by forming a thick film of the electric resistance layer 15 after patterning various electrodes.
- the covering member 12 and the covering resin 29 may be formed of the same material. In that case, when the coating resin 29 is printed, the coating resin 29 and the coating member 12 may be formed at the same time by printing also on the region where the coating member 12 is formed.
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Abstract
Description
以下、サーマルヘッドX1について図1~7を参照して説明する。図1では、保護層25、被覆層27、および被覆部材12を省略して一点鎖線にて示している。また、図3(b)では、保護層25、被覆層27、および被覆部材12を省略している。また、図5(a),5(b)では、被覆部材12を省略して一点鎖線にて示している。
図9,10を用いてサーマルヘッドX2について説明する。なお、サーマルヘッドX1と同一の部材については同一の符号を付し、以下同様とする。
図11を用いて、サーマルヘッドX3について説明する。サーマルヘッドX3は、コネクタ231の形状がサーマルヘッドX2のコネクタ131と異なっている。その他の点はコネクタ131と同様であり、説明を省略する。
図12~16を用いてサーマルヘッドX4について説明する。なお、図12(a)においては、ヘッド基体303、配線基板305およびコネクタ331の構成を概略的に示しており、被覆樹脂329の図示を省略している。図15(b)では第2被覆部材320を一点鎖線にて示している。
Z1 サーマルプリンタ
1 放熱板
3 ヘッド基体
7 基板
8 コネクタピン
8a 第1コネクタピン
8b 第2コネクタピン
8c 第3コネクタピン
8d 第4コネクタピン
9 発熱部
10 ハウジング
10a 上壁
10b 下壁
10c 側壁
10d 前壁
10e 突出部
10f 位置決め部
10g 支持部
10h 堰止部
10i 切欠部
11 駆動IC
12 被覆部材
13 蓄熱層
15 電気抵抗層
17 共通電極
19 個別電極
21 第1接続電極
23 接合材
25 保護層
26 第2接続電極
27 被覆部材
29 被覆樹脂
Claims (20)
- 基板と、
前記基板上に設けられた複数の発熱部と、
前記基板上に設けられ、複数の前記発熱部に電気的に接続された複数の電極と、
前記基板を挟持するとともに複数の前記電極に個別に電気的に接続された複数のコネクタピン、および、複数の前記コネクタピンを収容するハウジングを有したコネクタと、を備え、
前記ハウジングが、副走査方向において、前記基板に隣り合うように配置されており、
前記ハウジングが、前記基板の下方に配置された支持部を有することを特徴とするサーマルヘッド。 - 基板と、
前記基板上に設けられた複数の発熱部と、
前記基板上に設けられ、複数の前記発熱部に個別に電気的に接続された複数の電極と、
前記基板に隣り合うように配置され、複数の前記電極に個別に電気的に接続された複数の配線を備える配線基板と、
前記配線基板を挟持するとともに複数の前記配線に電気的に接続された複数のコネクタピン、および、複数の前記コネクタピンを収容するハウジングを有したコネクタと、を備え、
前記ハウジングが、副走査方向において、前記配線基板に隣り合うように配置されており、
前記ハウジングが、前記配線基板の下方に配置された支持部を有することを特徴とするサーマルヘッド。 - 前記ハウジングは箱形状をなしており、主走査方向における前記ハウジングの両端部に位置する側壁に前記支持部を有する、請求項1または2に記載のサーマルヘッド。
- 前記基板と前記支持部とが離間している、請求項1に記載のサーマルヘッド。
- 前記コネクタピンの少なくとも一部を被覆する被覆部材をさらに備え、
前記被覆部材が、前記基板と前記支持部との間に配置されている、請求項4に記載のサーマルヘッド。 - 前記配線基板と前記支持部とが離間している、請求項2に記載のサーマルヘッド。
- 前記コネクタピンの少なくとも一部を被覆する被覆部材をさらに備え、
前記被覆部材が、前記配線基板と前記支持部との間に配置されている、請求項6に記載のサーマルヘッド。 - 前記支持部は、主走査方向に延びる堰止部を有する、請求項1~7のいずれか一項に記載のサーマルヘッド。
- 前記ハウジングは、平面視して、隣り合う前記コネクタピン同士の間に突出部をさらに有する、請求項1~8のいずれか一項に記載のサーマルヘッド。
- 前記突出部に切欠部が設けられている、請求項9に記載のサーマルヘッド。
- 前記基板の下方に配置され、前記基板の熱を放熱するための放熱板をさらに備え、
前記ハウジングが前記放熱板の側面に隣り合うように配置されており、
前記支持部が前記側面に接触している、請求項1~10のいずれか一項に記載のサーマルヘッド。 - 前記基板の下方に配置され、前記基板の熱を放熱するための放熱板をさらに備え、
前記ハウジングが前記放熱板の側面に隣り合うように配置されており、
前記支持部と前記側面とが樹脂により接続されている、請求項1~10のいずれか一項に記載のサーマルヘッド。 - 前記基板の下方に配置され、前記基板の熱を放熱するための放熱板をさらに備え、
前記ハウジングが前記放熱板の側面に隣り合うように配置されており、
前記支持部が前記側面と離間している、請求項1~10のいずれか一項に記載のサーマルヘッド。 - 前記コネクタピンが、前記電極と電気的に接続される第1コネクタピンと、前記基板と接触する接触部を有する第2コネクタピンと、前記第1コネクタピンと前記第2コネクタピンとを連結する第3コネクタピンとを有し、
前記コネクタピンは、前記第1コネクタピンと前記第2コネクタピンとで前記基板を挟持するとともに、
前記第2コネクタピンが前記第1コネクタピンよりも前記基板から突出するとともに、前記接触部が、前記第1コネクタピンの先端よりも前記第3コネクタピン側に配置されている、請求項1に記載のサーマルヘッド。 - 前記コネクタピンが、前記配線と電気的に接続される第1コネクタピンと、前記配線基板と接触する接触部を有する第2コネクタピンと、前記第1コネクタピンと前記第2コネクタピンとを連結する第3コネクタピンとを有し、
前記コネクタピンは、前記第1コネクタピンと前記第2コネクタピンとで前記配線基板を挟持するとともに、
前記第2コネクタピンが前記第1コネクタピンよりも前記配線基板から突出するとともに、前記接触部が、前記第1コネクタピンの先端よりも前記第3コネクタピン側に配置されている、請求項2に記載のサーマルヘッド。 - 前記第1コネクタピンを被覆するとともに、前記第2コネクタピンの一部が露出した状態で前記第2コネクタピンを被覆する被覆部材をさらに備える、請求項14または15に記載のサーマルヘッド。
- 前記第1コネクタピンを被覆する第1被覆部材と、
前記第2コネクタピンを被覆する第2被覆部材とをさらに備え、
前記第2被覆部材の硬度が前記第1被覆部材の硬度よりも低い、請求項14または15に記載のサーマルヘッド。 - 複数の前記コネクタピン上に設けられた被覆部材をさらに備え、
前記被覆部材は、前記ハウジング上に設けられた第1部位と、平面視して、前記発熱部から遠ざかる方向に、前記第1部位から突出する第2部位を有する請求項1または2に記載のサーマルヘッド。 - 前記第2部位が、主走査方向における前記ハウジングの両端部に配置されている請求項18に記載のサーマルヘッド。
- 請求項1~19のうちいずれか一項に記載のサーマルヘッドと、
複数の前記発熱部上に記録媒体を搬送する搬送機構と、
複数の前記発熱部上に前記記録媒体を押圧するプラテンローラと、を備えることを特徴とするサーマルプリンタ。
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CN201480070178.1A CN105829112B (zh) | 2013-12-25 | 2014-11-27 | 热敏头及热敏打印机 |
JP2015554691A JP6219408B2 (ja) | 2013-12-25 | 2014-11-27 | サーマルヘッドおよびサーマルプリンタ |
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WO2016031740A1 (ja) * | 2014-08-26 | 2016-03-03 | 京セラ株式会社 | サーマルヘッドおよびサーマルプリンタ |
EP3162575A4 (en) * | 2014-06-24 | 2018-01-24 | KYOCERA Corporation | Thermal head and thermal printer |
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US11504983B2 (en) * | 2018-09-27 | 2022-11-22 | Kyocera Corporation | Thermal head and thermal printer |
US11498342B2 (en) * | 2018-09-27 | 2022-11-15 | Kyocera Corporation | Thermal head and thermal printer |
CN114083905B (zh) * | 2021-12-06 | 2023-01-20 | 湖南凯通电子有限公司 | 热敏打印机发热电路 |
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JPWO2015098423A1 (ja) | 2017-03-23 |
JP6219408B2 (ja) | 2017-10-25 |
US9701131B2 (en) | 2017-07-11 |
US20160325557A1 (en) | 2016-11-10 |
CN105829112A (zh) | 2016-08-03 |
CN105829112B (zh) | 2017-09-29 |
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