WO2005029058A1 - センサおよびセンサの製造方法 - Google Patents
センサおよびセンサの製造方法 Download PDFInfo
- Publication number
- WO2005029058A1 WO2005029058A1 PCT/JP2004/013300 JP2004013300W WO2005029058A1 WO 2005029058 A1 WO2005029058 A1 WO 2005029058A1 JP 2004013300 W JP2004013300 W JP 2004013300W WO 2005029058 A1 WO2005029058 A1 WO 2005029058A1
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- WO
- WIPO (PCT)
- Prior art keywords
- frame
- detection element
- sensor
- electrode terminal
- contact
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 7
- 238000001514 detection method Methods 0.000 claims abstract description 129
- 239000002184 metal Substances 0.000 claims abstract description 85
- 238000004519 manufacturing process Methods 0.000 claims description 19
- 239000011810 insulating material Substances 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 3
- 238000005452 bending Methods 0.000 claims description 2
- 239000000446 fuel Substances 0.000 description 19
- 239000007789 gas Substances 0.000 description 14
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 11
- 239000000919 ceramic Substances 0.000 description 10
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 9
- 238000005259 measurement Methods 0.000 description 9
- 239000001301 oxygen Substances 0.000 description 9
- 229910052760 oxygen Inorganic materials 0.000 description 9
- 230000005489 elastic deformation Effects 0.000 description 6
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 5
- 239000000843 powder Substances 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- 230000002950 deficient Effects 0.000 description 3
- 239000011241 protective layer Substances 0.000 description 3
- 230000001012 protector Effects 0.000 description 3
- 239000007784 solid electrolyte Substances 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 239000000454 talc Substances 0.000 description 2
- 229910052623 talc Inorganic materials 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 241000255925 Diptera Species 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 229910001026 inconel Inorganic materials 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- RUDFQVOCFDJEEF-UHFFFAOYSA-N yttrium(III) oxide Inorganic materials [O-2].[O-2].[O-2].[Y+3].[Y+3] RUDFQVOCFDJEEF-UHFFFAOYSA-N 0.000 description 1
- 229910052845 zircon Inorganic materials 0.000 description 1
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/403—Cells and electrode assemblies
- G01N27/406—Cells and probes with solid electrolytes
- G01N27/407—Cells and probes with solid electrolytes for investigating or analysing gases
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/403—Cells and electrode assemblies
- G01N27/406—Cells and probes with solid electrolytes
- G01N27/4062—Electrical connectors associated therewith
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/403—Cells and electrode assemblies
- G01N27/406—Cells and probes with solid electrolytes
- G01N27/407—Cells and probes with solid electrolytes for investigating or analysing gases
- G01N27/4077—Means for protecting the electrolyte or the electrodes
Definitions
- the present invention relates to a detection element having a plate shape extending in the axial direction and having an electrode terminal formed on a rear end side, and electrically connected to the detection element by contacting the electrode terminal of the detection element.
- the present invention relates to a sensor including a metal terminal member that forms a current path, and a method for manufacturing such a sensor.
- a sensor having a plate-like shape extending in the axial direction and having a detection element (sensor element) in which a detection section is formed at a front end side facing a measurement object attached.
- a detection element sensor element
- Examples of such a sensor include a gas sensor such as a ⁇ (lambda) sensor, a full-range air-fuel ratio sensor, an oxygen sensor, a ⁇ sensor, and a temperature sensor for detecting temperature.
- a plate-shaped detection element is generally configured to include a detection section on the front end side in the axial direction (longitudinal direction) and electrode terminals on the front and back surfaces on the rear end side.
- a current flowing between the detecting element and an external device is obtained by electrically connecting a lead frame (metal terminal member) made of a conductive material to the electrode terminal portion.
- a lead frame metal terminal member
- the current path that electrically connects the detection element to the external device includes, for example, a detection signal corresponding to the detection result of the detection element, and a power supply to the heater when the detection element includes a heater. Current flows for the purpose.
- a lead frame having an elastic contact portion as an elastically deformable plate panel was used, and the elastic contact portion of the lead frame was brought into contact with the electrode terminal portion of the detection element.
- a sensor having a configuration in which a detection element is gripped inside a through hole of a separator in a state is known (see Patent Document 1).
- the elastic contact portion is provided in a state of being connected to the main body of one of the card frames at one of both ends (one-point support state).
- the connection state between the lead frame and the electrode terminal portion of the detection element is improved.
- examples of the lead frame in which the elastic contact portion generates a large elastic force include a lead frame having a large width and a lead frame having a large thickness.
- Patent document 1 Japanese Patent Application Laid-Open No. 2001-188060
- a lead frame having a wide width needs to secure a wide arrangement space, and thus has a problem that it is not suitable for a sensor for an application requiring miniaturization. Furthermore, when a lead frame with a wide width is used for a sensing element formed with a plurality of electrode terminals having a narrow width in close proximity, the lead frame comes into contact across a plurality of electrode terminals and the current path is reduced. There is a possibility that the film cannot be formed properly.
- a current path can be formed by using a lead frame having a narrow width.
- a lead frame provided with an elastic supporting portion in a single-point support state like the above-mentioned conventional lead frame tends to lack elastic force due to its narrow width, so that elastic force is insufficient.
- the electrode terminals cannot be sufficiently contacted with each other, and the connection state with the electrode terminals may be unstable.
- the present invention has been made in view of such a problem, and has a structure in which an arrangement space of a metal terminal member in which a detection element is unlikely to be damaged during an assembling operation with the metal terminal member is limited.
- An object of the present invention is to provide a sensor capable of favorably maintaining an electrical connection state between an electrode terminal portion of a detection element and a metal terminal member, and to provide a method for manufacturing such a sensor.
- a plate-like shape extending in the axial direction is provided, and the tip side has a measurement pair. It consists of a sensing element that is directed toward the object and has an electrode terminal formed on the rear end side, and a metal plate-shaped member, and is electrically connected to the electrode terminal to form a current path.
- a metal terminal member, the metal terminal member comprising: a frame main body extending in the axial direction; and a folded back extending in a direction toward the rear end in the axial direction by bending and reversing the tip force of the frame main body.
- the folded back portion has a connection side end connected to the front end of the frame body, and a frame contact portion formed at the rear end side of the connection side end and in contact with the frame body.
- a sensor is provided.
- the sensor is configured to include a metal terminal member having a frame main body and a folded portion.
- the metal terminal member is configured such that at least a part of the metal terminal member comes into contact with the electrode terminal portion of the detection element. A part of a current path connecting the power supply and the external device.
- the folded-back portion force of the metal terminal member is connected to the connection-side end connected to the front end of the frame main body, and formed at the rear end side of the connection-side end.
- a frame contact portion that contacts the body portion. That is, in the sensor of the present invention, in a state where the metal terminal member is assembled to the detection element, the folded portion of the metal terminal portion is supported by at least two points of the connection side end and the frame contact portion. It becomes a support state.
- the conventional metal terminal member in which the folded portion is always in a single-point supported state (a cantilevered state). Compared to, it is not necessary to increase the width and thickness, and it is possible to suppress the expansion of the arrangement space, and it is suitable for use in sensors that require miniaturization!
- the frame contact portion of the folded portion does not contact the frame body portion.
- the frame contact portion is It is configured to be in contact with the main body.
- the frame contact portion of the folded portion does not contact the frame body portion, and the folded portion has one point (the frame body portion). It is configured to be supported by the frame main body at a connection-side end connected to the tip. For this reason, the metal terminal member is in a state where the frame contact portion of the folded portion does not contact the frame main body portion. Then, the metal terminal member is configured to be pressed against the electrode terminal portion of the detection element. Then, the folded portion continues to be elastically deformed against the frame main body portion, and the frame contact portion comes into contact with the frame main body portion. As described above, at least the folded portion has the connection side end and the frame contact portion. The frame will be supported by the frame body at two points.
- the metal terminal member provided in the sensor according to the present invention has a metal terminal with respect to the detection element when the frame contact portion of the folded portion contacts the frame contact portion and when the frame contact portion does not contact the frame contact portion.
- the pressure for pressing the member is configured to fluctuate. More specifically, the metal terminal member has a pressure applied to itself against the electrode terminal of the detection element, and the frame contact portion of the folded portion does not contact the frame body (one-point support). The state (two-point support state) in which the frame contact portion of the folded portion abuts on the frame body is larger than the state (state).
- the metal terminal member in the first half of the assembling operation, is pressed against the electrode terminal portion of the detecting element with a relatively small force. In addition, it is possible to prevent the detection element from being damaged by the application of pressure.
- the folded-back portion After completion of the assembling work, the folded-back portion will be in a two-point support state where it is supported by the frame body at the connection side end and the frame contact portion. In the folded portion in the two-point support state, since the stress generated by elastic deformation is larger than that in the one-point support state as described above, the electric connection between the metal terminal member and the electrode terminal member of the detection element is made. A good connection state.
- the folded portion bends at the distal end of the frame main body to change the direction, and is disposed between the electrode terminal of the detection element and the frame main body. It is preferable to form an element contact portion that contacts the pole terminal portion.
- the element contact portion that is disposed between the folded portion force detection element of the metal terminal member and the frame main body portion and that contacts the electrode terminal portion is configured. In other words, it comes into contact with the electrode terminal portion of the folded portion force detecting element which is supported at two points with respect to the frame body. For this reason, the folded portion can be pressed against the electrode terminal of the detection element with a larger stress, and the electrical connection between the metal terminal member and the electrode terminal of the detection element can be further improved. it can.
- the turn-back portion forming the element contact portion protrudes toward the electrode terminal portion of the detection element, and includes a convex portion whose top portion contacts the electrode terminal portion.
- a convex portion protruding toward the electrode terminal portion of the detection element is formed in the folded portion, and the top of the convex portion is brought into contact with the electrode terminal portion to reduce the contact pressure of the folded portion with the electrode terminal portion. Can be enhanced. Therefore, the contact between the folded portion of the metal terminal member and the electrode terminal portion of the detection element can be ensured, and the reliability of the electrical connection state can be improved.
- a width dimension of the folded portion constituting the element contact portion is formed to be not less than 0.5 [mm] and not more than 2.0 [mm].
- the metal terminal member having the folded portion whose width dimension is set as described above can be applied to a plurality of electrode terminal sections even in a detection element in which a plurality of electrode terminal sections having a small width of the electrode terminal section are formed. It is possible to individually connect to each electrode terminal portion that is not connected across, and to appropriately form a current path. Further, the strength of the metal terminal member can be kept good, and the durability of the sensor can be made good. In addition, since the metal terminal member can be arranged in an arrangement space with a small volume, a current path can be formed even in a small sensor, and the sensor can be downsized.
- the width dimension is a dimension in a direction perpendicular to the axial direction and perpendicular to the direction of the gap between the folded portion and the frame body.
- a separator that is disposed radially outward on the rear end side of the detection element and also has an insulating material strength is provided. It is preferable that the elastic member is sandwiched between the detecting element and the separator while being elastically deformed toward the main body.
- the metal terminal member is sandwiched and fixed between the detection element and the separator in a state in which the folded portion is elastically deformed toward the frame main body, whereby the metal terminal member and the electrode terminal of the detection element are fixed.
- An electrical connection state with the unit can be reliably obtained. Therefore, according to the sensor of the present invention, the connection state between the metal terminal member and the electrode terminal portion of the detection element can be maintained for a long period of time even when the sensor is mounted and used in an environment such as a vehicle with severe vibration. Can be maintained stably.
- the frame contact portion of the folded portion is formed in a curved shape.
- the frame contact portion of the folded portion of the metal terminal member is formed into a curved surface, and the frame contact portion and the frame main body portion are contacted. For this reason, even when the sensor of the present invention is used in an environment such as a vehicle that is subject to severe vibration, the degree of generation of metal powder due to friction between the frame contact portion and the frame main body is significantly reduced. can do. Therefore, according to the sensor of the present invention, even when the sensor is mounted and used in an environment such as a vehicle with severe vibration, the metal powder due to the friction between the frame contact portion and the frame main body is used. Can be effectively suppressed from scattering and adversely affecting the connection state between the metal terminal member and the electrode terminal portion of the detection element.
- a detection element having a plate-like shape extending in the axial direction, the front end side is directed to the object to be measured, and the electrode terminal section is formed on the rear end side, and the electrode terminal section is It is disposed radially outward on the rear end side of the formed detection element, and is composed of a separator made of insulating material and a metal plate-like member.
- a method for manufacturing a sensor comprising: a metal terminal member that is electrically connected to form a current path, wherein the metal terminal member bends in a frame main body portion extending in an axial direction and a tip force of the frame main body portion.
- a return portion extending toward the rear end side in the axial direction and disposed between the electrode terminal portion of the detection element and the frame body portion.
- the return portion is connected to a tip end of the frame body portion.
- Side end and rear end side than connection side end The metal terminal member has a frame contact portion that contacts the frame main body, and the metal terminal member is Before being electrically connected to the electrode terminal portion of the child, the frame contact portion of the folded portion is configured not to contact the frame body portion, while being electrically connected to the electrode terminal portion.
- the frame abutment is configured to abut the frame main body, the first step of disposing the metal terminal member on the separator, and the detecting step.
- a method of manufacturing a sensor including a third step of moving a relative position between a detection element and a separator so as to be disposed radially outward.
- the detection element is hardly damaged, and the production efficiency of the sensor is improved. Can be planned.
- FIG. 1 is a cross-sectional view showing the overall configuration of an all-area air-fuel ratio sensor according to an embodiment.
- FIG. 2 is a perspective view showing a schematic structure of a detection element.
- FIG. 3 is a perspective view showing an appearance of a lead frame.
- FIG. 4 is a perspective view showing an appearance of a separator.
- FIG. 5 is a perspective view of a separator in a state where a lead frame is arranged in a through hole.
- FIG. 6 is an explanatory diagram showing a state in which a lead frame is deformed inside the through-hole at the time of inserting the detection element through the through-hole of the separator.
- FIG. 7 is a perspective view of the intermediate assembly in a state where the rear end of the detection element projects from the rear end of the metal shell and the rear end of the ceramic sleeve.
- FIG. 8 is a perspective view showing an appearance of a lead frame in which a protruding portion is provided at a portion of an element contact portion where contact with an electrode terminal portion of a detection element is to be made.
- FIG. 9 A lead frame in which a frame contact portion is formed into a curved shape among element contact portions. It is a perspective view showing appearance.
- a detection element which is a kind of gas sensor and detects a specific gas in exhaust gas to be measured, is used for use in air-fuel ratio feedback control in automobiles and various internal combustion engines.
- a description will be given of a full-range air-fuel ratio sensor 2 (hereinafter, also referred to as an air-fuel ratio sensor 2) mounted on an exhaust pipe of an internal combustion engine.
- FIG. 1 is a cross-sectional view showing an overall configuration of an air-fuel ratio sensor 2 of an embodiment to which the method of the present invention is applied.
- the air-fuel ratio sensor 2 has a plate-shaped detection element 4 extending in the axial direction (vertical direction in the figure), and a cylindrical metal shell 1 for accommodating the detection element 4 with the tip of the detection element 4 protruding. 02, a cylindrical ceramic sleeve 6 arranged between the detection element 4 and the metal shell 4, and an alumina separator 82 arranged so as to surround the rear end of the detection element 4. I have.
- the detection element 4 has a plate-like shape extending in the axial direction, and has a detection unit 8 covered with a protective layer formed on the front end side (downward in the figure) facing the gas to be measured.
- Electrode terminals 30, 31, 32, 34, and 36 are formed on a first plate surface 21 and a second plate surface 23, which are the front and back positions of the outer surface on the side (upper side in the figure) (FIG. 2). reference).
- Five lead frames (metal terminal members) 10 are arranged between the detecting element 4 and the separator 82, and are electrically connected to the electrode terminals 30, 31, 32, 34, and 36 of the detecting element 4, respectively. I have.
- the lead frame 10 is also electrically connected to a lead wire 46 disposed inside the sensor from the outside on the rear end side, and the external terminal to which the lead wire 46 is connected is connected to the electrode terminal portion 30. It forms a current path for the current flowing between 31, 32, 34 and 36.
- the metal shell 102 has a screw portion 103 on an outer surface thereof for fixing the metal shell 102 to the exhaust pipe, and is formed in a substantially cylindrical shape having a through hole 109 penetrating therethrough in the axial direction.
- the metal shell 102 has the detecting element 8 protruding toward the front end of the through hole 109 and the electrode terminals 30, 31, 32, 34, and 36 protruding toward the rear end of the through hole 109.
- the through hole 109 It is configured to:
- a metal (for example, stainless steel) double external protector that covers the protruding portion of the detection element 4 and has a plurality of holes is provided on the outer periphery of the distal end side (the lower part in FIG. 1) of the metal shell 102.
- the protector 42 and the inner protector 43 are attached by welding or the like.
- a separator 82 is disposed around the rear end side (upward in FIG. 1) of the detection element 4 protruding from the rear end 104 of the metal shell 102, and the electrode terminals 30 and 31 of the detection element 4 are provided. , 32, 34, and 36 are inserted through the mosquito 84 [within this thread!
- An outer cylinder 44 is fixed to the outer periphery of the rear end side of the metal shell 102.
- a grommet 50 is arranged at an opening on the rear end side (upper side in FIG. 1) of the outer cylinder 44, and five lead wires 46 are inserted into the lead wire through holes 61 of the grommet 50.
- the separator 82 includes a flange 83 projecting radially outward from the outer surface, and is disposed inside the outer cylinder 44 when the flange 83 comes into contact with the outer cylinder side support 64 of the outer cylinder 44.
- an annular ceramic holder 106 and a powder-filled layer 108 (hereinafter also referred to as a talc ring 108) are provided so as to surround the radial periphery of the detection element 4.
- the auxiliary sleeve 110 and the ceramic sleeve 6 are laminated in this order from the front end to the rear end. These laminates are caulked and fixed between the shelf 107 and the rear end 104 of the metal shell 102 via the packing 129 and the caulking ring 112! RU
- FIG. 2 a perspective view showing a schematic structure of the detection element 4 is shown in FIG.
- the detecting element 4 is shown by omitting an intermediate portion in the axial direction.
- the detection element 4 is formed by stacking an element portion 20 formed in a plate shape extending in the axial direction (the left-right direction in FIG. 2) and a heater 22 also formed in a plate shape extending in the axial direction. Are formed in a plate shape having a rectangular axial cross section. Since the detection element 4 used as the air-fuel ratio sensor 2 is a conventionally known element, a detailed description of its internal structure and the like is omitted, but the schematic configuration is as follows.
- the element section 20 includes an oxygen concentration battery element having porous electrodes formed on both sides of a solid electrolyte substrate, an oxygen pump element having porous electrodes formed on both sides of the solid electrolyte substrate, and both of these elements. It is stacked between the elements and is composed of a spacer and a force for forming a hollow measurement gas chamber.
- This solid electrolyte substrate is made of zircon in which yttria is dissolved as a stabilizer.
- the porous electrode is formed mainly from Pt, and is formed mainly from Pt.
- the spacer forming the measurement gas chamber is mainly composed of alumina. Inside the hollow measurement gas chamber, one porous electrode of the oxygen concentration cell element and one of the oxygen pump element are provided.
- the porous electrodes are arranged so as to be exposed.
- the measurement gas chamber is formed so as to be located at the tip side of the element section 20, and the portion where this measurement gas chamber is formed corresponds to the detection section 8.
- the heater 22 is mainly made of alumina.
- a heating resistor antibody pattern mainly composed of Pt is formed between insulating substrates.
- the element section 20 and the heater 22 are joined to each other via a ceramic layer (for example, a dinoreco-based ceramic alumina ceramic).
- a ceramic layer for example, a dinoreco-based ceramic alumina ceramic.
- a porous ceramic for example, an alumina ceramic for preventing poisoning is formed.
- a protective layer (not shown) is formed. In the present embodiment, the entire front end side of the detection element 4 including the surface of the electrode exposed to the exhaust gas is covered with the protective layer! / Puru.
- three electrode terminal portions 30, 31, 32 are formed on the rear end side (the right side in FIG. 2) of the first plate surface 21.
- Two electrode terminal portions 34 and 36 are formed on the rear end side of the two plate surface 23.
- the electrode terminal sections 30, 31, and 32 are formed on the element section 20, and one electrode terminal section includes one porous electrode of the oxygen concentration cell element exposed inside the measurement gas chamber and the oxygen pump element. It is electrically connected so as to be shared with one of the porous electrodes.
- the remaining two electrode terminals of the electrode terminals 30, 31, and 32 are electrically connected to the other porous electrode of the oxygen concentration cell element and the other porous electrode of the oxygen pump element, respectively.
- the electrode terminal portions 34 and 36 are formed on the heater 22, and are connected to both ends of the heating resistor pattern via vias (not shown) crossing in the thickness direction of the heater 22, respectively. You.
- FIG. 3 is a perspective view showing the appearance of the lead frame 10.
- the air-fuel ratio sensor 2 of the present embodiment has two types of lead frames 10 (the first lead frame 11 shown on the left side in FIG. 3 and the second lead frame 211 shown on the right side) having different shapes of the frame locking portions. It is configured with.
- lead frame 10 It is made of a well-known material (for example, Inconel or stainless steel) that can maintain elasticity (panel elasticity) even after repeated exposure.
- the first lead frame 11 detects the frame main body 12 that is a long plate-like member extending in the axial direction and that is folded back from the end of the frame main body 12, and detects the frame main body 12.
- An element contact portion 16 extending so as to be disposed between the device 4 and a part of itself abutting on the electrode portion of the detection device 4, and a lead wire electrically connected to the lead wire 46.
- a connection unit 17 a connection unit 17.
- the frame main body 12 has a curved portion 13 at a substantially intermediate position in the axial direction, and has a distal end portion located at the distal end with respect to the curved portion 13 and a rear end located with respect to the curved portion 13.
- the rear end portion is configured such that the position in the thickness direction of the plate surface is different.
- the surface of the curved portion 13 facing the frame contact portion 15 forms a slope facing the front end side, and when the frame contact portion 15 contacts the frame contact portion, the frame contact portion is positioned at the rear end in the axial direction. It has the function of restricting movement to the side or radially outward.
- the frame body 12 has a width W1 of 1.1 [mm] and a thickness of 0.2 [mm] of the plate surface at a portion on the distal end side of the intermediate position in the axial direction.
- the first lead frame 11 includes a first frame engaging portion 19 that is engaged with the separator 82 on the distal end side of the frame main body 12.
- the first frame engaging portion 19 is bent so as to extend in the vertical direction with respect to the plate surface also at the front end side force of the frame main body portion 12 and to have a portion parallel to the plate surface of the frame main body portion 12. It is configured.
- the element contact portion (return portion) 16 also has a form in which the front end of the frame body 12 also bends radially inward, changes direction, and extends toward the rear end in the axial direction.
- the element contact portion 16 is a connection end portion 14 connected to the front end of the frame main body portion 12 and a frame contact portion formed on the rear end side with respect to the connection end portion 14.
- the first lead frame 11 has a frame contact portion 15 that is separated from the frame main body portion 12 in a free state of itself.
- the element contact portion 16 is formed such that the width W1 of the plate surface is 1. l [mm] and the plate thickness is 0.2 [mm].
- the gap dimension from the axially intermediate portion to the frame main body portion 12 is smaller than the gap dimension from the frame contact portion 15 to the frame main body portion 12. It is formed in an arcuate shape that is curved so as to be longer, and the convex-side curved surface of the arcuate shape is formed so as to contact the detection element 4.
- the element contact portion 16 is applied with an external force (specifically, an external force from the element contact portion 16 to the frame main body 12 is applied), so that the frame contact portion 15 is connected to the frame main body.
- the frame contact portion 15 is elastically deformed toward the portion 12, so that the frame contact portion 15 finally contacts the curved portion 13 of the frame body 12.
- the gap dimension dimension in the direction perpendicular to the axial direction
- the gap dimension is configured to be smaller than the depth dimension of the first frame arrangement groove 86 and the second frame arrangement groove 88 of the separator 82. I have.
- the first lead frame 11 When the element contact portion 16 is supported between the detection element 4 and the separator 82 in a state where the element contact portion 16 is elastically deformed toward the frame main body portion 12, the first lead frame 11 The frame contact part 15 of the part 16 contacts the curved part 13 of the frame main body part 12, and at least a part of the element contact part 16 projects from the first frame arrangement groove 86 and the second frame arrangement groove 88. It is configured to be in contact with the electrode terminal of the detection element 4.
- the second frame main body 212 has a width dimension W2 of 0.8 [mm] and a thickness of 0.2 [mm] of the plate surface at a portion on the distal end side of the vicinity of the curved portion 213, and has a first lead.
- W2 width dimension
- W2 thickness
- 0.2 [mm] thickness
- the cross-sectional shape in a plane parallel to the axial direction and perpendicular to the plate surface is formed to be substantially the same as the frame body 12. I have.
- the second element contact portion 216 has a plate surface width W2 of 0.8 [mm] and a plate thickness of 0.2 [mm]. Although the width and thickness of the plate surface are different from those of the portion 16, the cross-sectional shape in a plane parallel to the axial direction and perpendicular to the plate surface is formed in an arc shape substantially similar to that of the element contact portion 16. It has a second connection side end 214 corresponding to the connection side end 14, and a second frame contact part 215 corresponding to the frame contact part 15.
- the second lead frame 211 has two second frame locking portions formed on the tip end side of the second frame main body 212 so as to be disposed in the second locking groove 91 of the separator 82. Equipped with 219 It is.
- the second frame locking portion 219 extends from the second frame main body 212 in a direction perpendicular to the plate surface, and faces outward so as to have a portion parallel to the plate surface of the second frame main body 212. It is configured to be bent.
- the second lead frame 211 has a second lead wire connecting portion formed at the rear end of the second frame main body 212 in substantially the same shape as the lead wire connecting portion 17 of the first lead frame 11. It has 21 7
- first lead frames 11 and one second lead frame 211 are inserted into the through holes 84 of the separator 82 while being insulated from each other. Be placed.
- the four first lead frames 11 are provided with two first frame disposing grooves 86 corresponding to the electrode terminals 30 and 32 of the detection element 4 and two second frames corresponding to the electrode terminals 34 and 36.
- the second lead frame 211 is arranged in the frame arrangement groove 88, and the second lead frame 211 is arranged in the first frame arrangement groove 86 corresponding to the electrode terminal 31 of the detection element 4.
- FIG. 4 is a perspective view showing the appearance of the separator 82 when viewed from the front end side.
- the three lead frames 10 are individually electrically insulated from each other on the inner wall surface of the through hole 84 facing the first plate surface 21 (not shown) of the detecting element 4.
- the three first frame arrangement grooves 86 are formed at positions corresponding to the electrode terminals 30, 31, and 32 on the first plate surface 21 of the detection element 4, respectively.
- the two lead frames 10 are individually arranged in an electrically insulated state on the inner wall surface of the through hole 84 facing the second plate surface 23 (not shown) of the detection element 4. And a second rib portion 89 that forms a boundary between the second frame disposing grooves 88.
- the two second frame arrangement grooves 88 are formed at positions corresponding to the electrode terminal portions 34 and 36 on the second plate surface 23 of the detection element 4, respectively.
- the first rib portion 87 and the second rib portion 89 have a function of preventing the lead frames 10 arranged in the adjacent frame arrangement grooves from contacting each other and preventing a current path from becoming defective. are doing.
- the separator 82 has a first locking groove 90 and a second locking groove formed on the distal end surface (the surface on the near side in the figure) so as to be connected to the distal opening of the through hole 84.
- the groove 91 is provided.
- the first locking groove 90 is formed in a substantially L-shape when viewed from the front end side of the separator 82, and is formed so that the first frame locking portion 19 of the lead frame 10 can be arranged. .
- the first locking groove 90 is formed so as to be connected to the first frame arrangement groove 86 and the second frame arrangement groove 88 formed outside of the three first frame arrangement grooves 86, respectively. I have.
- the second locking groove 91 is formed between a narrow groove 93 formed between the two ridges 92 and a radially outer side of the narrow groove 93 of the distal end surface of the separator 82.
- the enlarged width groove portion 94 is formed so that the second frame locking portion 219 of the lead frame 10 can be arranged.
- the protruding ridge portion 92 is formed in a shape that is continuous from the tip end portion of the first rib portion 87.
- the second locking groove portion 91 is formed at one place connected to one first frame disposing groove 86 formed at the center among the three first frame disposing grooves 86.
- the lead frame 10 is arranged in the through hole 84 of the separator 82 together with the lead wire 46 after the lead wire 46 is connected to the lead wire connecting portion 17 (second lead wire connecting portion 217).
- FIG. 5 shows a perspective view of the separator 82 in a state where the lead frame 10 is disposed in the through hole 84.
- the first frame locking portion 19 of the first lead frame 11 is disposed in the first locking groove 90 of the separator 82 and the second frame locking portion 90 of the second lead frame 211.
- the portion 219 is arranged in the second locking groove 91 of the separator 82.
- the element contact portion 16 of the lead frame 10 (the second element contact portion) is formed.
- the part 216) and one of the electrode terminal parts 30, 31, 32, 34, 36 of the detection element 4 can be brought into electrical contact to make electrical contact.
- FIG. 6 is an explanatory diagram showing a state in which the lead frame 10 is elastically deformed inside the through hole 84 during the operation of passing the detection element 4 through the through hole 84 of the separator 82.
- Figure 6 Here, one lead frame 10 and the detection element 4 are illustrated, and the separator 82 is not illustrated.
- the detection element 4 is arranged on the front end side of the separator 82, the detection element 4 is inserted through the opening on the front end side of the through hole 84, and 4 is brought into contact with the element contact portion 16 of the lead frame 10. Then, the detecting element 4 is pressed against the element contact portion 16 of the lead frame 10 to apply an external force to elastically deform the connection-side end portion 14 (in other words, the element contact portion 16 faces the frame main body portion 12). Elastic deformation), and the work of bringing the frame contact portion 15 of the element contact portion 16 close to the curved portion 13 of the frame main body portion 12 is performed.
- the detection element 4 is further pressed against the element contact section 16 to elastically deform the element contact section 16 toward the frame main body section 12 and at the same time, the flange of the element contact section 16 is formed.
- An operation of bringing the frame contact portion 15 into contact with the frame body 12 (the curved portion 13 of the frame body 12) is performed.
- the element contact portion 16 is in a state of being supported by the frame main body 12 at two places of the connection side end portion 14 and the frame contact portion 15, that is, a two-point support state.
- the detection element 4 is further inserted into the inside rear end side of the through hole 84, so that the inner wall surface of the through hole 84 of the separator 82 becomes the electrode terminal portion 30, 31 of the detection element 4. , 32, 34, and 36, the relative position between the detection element 4 and the separator 82 is moved. As a result, the leading end portion of the frame body 12 and the element contact portion 16 of the lead frame 10 are sandwiched between the detection element 4 and the inner wall surface of the through hole 84 (see FIG. 1). . At this time, the element contact portion 16 is elastically deformed at the axially intermediate portion along the plate surface of the detection element 4, and comes into contact with the electrode terminal portion of the detection element 4 with a large area.
- the detecting element 4, the lead frame 10, and the separator 82 can be integrally assembled.
- the force described for the elastic deformation state of the first lead frame 11 during the assembling work, the second lead frame 211 also shows the same deformation state as the first lead frame 11.
- FIG. 7 is a perspective view of the intermediate assembly 105 in which the rear end of the detection element 4 is projected from the rear end 104 of the metal shell 102 and the rear end of the ceramic sleeve 6.
- the lead frame 10 and the separator 82 are attached to the detection element 4 in the state of forming the intermediate assembly 105 by performing the above-described assembling work. Can be assembled.
- the outer cylinder 44 is joined to the metal shell 102 by laser welding or the like, and the grommet 50 is crimped to the outer cylinder 44.
- the air-fuel ratio sensor 2 is completed, and the manufacturing process of the air-fuel ratio sensor 2 is completed.
- the lead frame 10 corresponds to the metal terminal member described in the claims
- the element contact portion 16 and the second element contact portion 216 correspond to the folded portion. I have.
- the operation step of disposing the lead frame 10 inside the through hole 84 of the separator 82 corresponds to the first step described in the claims
- the lead frame 10 and the separator 82 The first and second steps in the assembling work correspond to the second step described in the claims, and the third step in the assembling work corresponds to the third step described in the claims. Equivalent to.
- the element contact portion 16 (the second element contact portion 216) in contact with the electrode terminal portion of the detection element 4 has one supporting state. It is configured using the lead frame 10 (the first lead frame 11, the second lead frame 211) configured to be transformed from the supported state to two points in the supported state! RU
- the lead frame 10 has a frame contact portion 15 (second frame contact portion 215) of the element contact portion 16 (second element contact portion 216) and a frame body portion 12 (second frame body portion).
- the element contact portion 16 (second connection side end 214) is relatively away from the element contact portion 16 (second connection side end 214) is configured to be pressed against the electrode terminal of the detection element 4.
- the element contact portion 16 (second element contact portion 216) is elastically deformed against the frame body portion 12 (second frame body portion 212) toward the frame body portion 12 (second frame body portion 212).
- the contact part 215) comes into contact with the frame body part 12 (the second frame body part 212)
- the axial middle part of the element contact part 16 (the second element contact part 216) is elastically deformed. As a result, a large stress is generated.
- the frame contact portion 15 (second frame contact portion 215) of the element contact portion 16 (second element contact portion 216) is connected to the frame body portion 12 (second frame body portion). 212), the frame contact part 15 (second frame contact part 215) of the element contact part 16 (second element contact part 216) is more than the one-point support state.
- the pressure for pressing the element contact portion 16 (second element contact portion 216) against the electrode terminal portion of the detection element 4 Is configured to be large.
- the element contact portion 16 ( The second element contact portion 216) is pressed against the electrode terminal portions 30, 31, 32, 34, 36 of the detection element 4.
- the element contact portion 16 (second element contact portion 216) is connected to the connection side end 14 (second connection side end 214) and the frame contact portion 15 (
- the second frame contact portion 215) is in a two-point support state where the frame is supported by the frame body 12 (the second frame body 212).
- a large stress (elastic force) generated by the elastic deformation of the element contact portion 16 (second element contact portion 216) in the two-point support state causes the element contact portion 16 of the lead frame 10 (second element contact portion). 216) is pressed against the electrode terminal portion of the detection element 4, so that an excellent electrical connection between the lead frame 10 and the electrode terminal portion of the detection element 4 can be obtained.
- the lead frame 10 of the present embodiment is necessary to generate the same elastic force when compared with a lead frame having a flexible contact portion that is always supported at one point like a conventional sensor.
- the width or thickness becomes smaller, the following characteristics are obtained.
- the lead frame 10 has the same elastic force because the element contact portion 16 (the second element contact portion 216) is deformed to the one-point support state and the stress is increased by the two-point support state.
- the width and thickness can be reduced as compared with conventional lead frames (metal terminal members).
- the lead frame 10 of the present embodiment it is possible to suppress an increase in the arrangement space, and it is possible to suitably use the sensor in a sensor that requires miniaturization.
- the air-fuel ratio sensor 2 is configured using the separator 82 in which the first frame arrangement groove 86 and the second frame arrangement groove 88 are formed, the arrangement position of the lead frame 10 with respect to the separator 82 is described.
- the work of setting (for position) becomes easy, and the complexity of the assembling work can be reduced.
- by disposing the lead frame 10 in the first frame disposition groove 86 and the second frame disposition groove 88 it is possible to prevent the disposition position of the lead frame 10 from being changed in an actual use environment of the air-fuel ratio sensor 2. Can be. For example, even when the outer cylinder 44 is deformed by an impact from the outside and the deformation affects the lead frame 10, it is possible to prevent the adjacent lead frames 10 from coming into contact with each other, and to reduce the current. The route can be maintained in an appropriate state.
- the lead frame 10 has the frame contact portion 15 (second frame contact portion 215) of the element contact portion 16 (second element contact portion 216) in the frame body portion 12 (second frame body portion).
- a part of the element contact portion 16 and a part of the second element contact portion 216 are partially outside the first frame arrangement groove 86 and the second frame arrangement groove 88 of the insertion hole 84. It is configured to be placed in For this reason, the lead frame 10 that prevents the entire element contact portion 16 and the second element contact portion 216 from being completely accommodated in the first frame arrangement groove 86 and the second frame arrangement groove 88 is detected. It is possible to prevent the connection to the electrode terminal of the element 4 from becoming impossible.
- the lead frame 10 has the frame contact portion 15 (second frame contact portion 215) of the element contact portion 16 (second element contact portion 216) and the frame main body portion 12 ( 2nd frame).
- the gap dimension between the first frame disposition groove 86 and the second frame disposition groove 88 is smaller than that of the first frame disposition groove 86 and the second frame disposition groove 88.
- the force of the frame contact portion 15 (second frame contact portion 215) is applied to the first frame disposition groove 86. It can be prevented from being locked by the peripheral part of the opening (first rib 87) or the peripheral part of the opening of the second frame arrangement groove 88 (second rib 89), and the frame contact part 15 (second frame This section 215) can be reliably brought into contact with the frame main body 12 (second frame main body 212).
- the frame contact portion 15 (second frame contact portion 215) of the element contact portion 16 (second element contact portion 216) is engaged with the first rib portion 87 or the second rib portion 89. Since it is in the stopped state, it is possible to prevent the lead frame 10 from being deformed into an inappropriate shape during the assembling work with the detecting element 4.
- the lead frame 10 includes a first frame locking portion 19 and a second frame locking portion 219.
- the first frame locking portion 19 The part 19 and the second frame locking part 219 are arranged in the first locking groove 90 and the second locking groove 91 of the separator 82. This prevents the lead frame 10 from separating from the inner wall surface of the through hole 84 when the detecting element 4 is inserted into the through hole 84. It is possible to prevent the connection state with the electrode terminal part 4 from becoming defective.
- the separator for supporting the metal terminal member (lead frame) between the detecting element and the detecting element is not limited to the one-piece structure of a single member, such as the separator 82, but includes a plurality of members. It may be of a split type. As an example, a first insulating member facing the front side plate surface of the detecting element, a second insulating member facing the back side plate surface of the detecting element, a first insulating member and a second insulating member arranged so as to sandwich the detecting element. And a holding / fixing member for holding the insulating member.
- the lead frame is formed to have a small width and a small thickness, and has a one-point support state and a two-point support state at the element contact portion (returned portion).
- the elastic member By using the elastic member, an elastic force for realizing a good electrical connection state can be generated.
- the space for disposing the lead frame can be reduced as compared with the related art, and the size of the sensor can be reduced.
- the senor to which the present invention is applied is not limited to a sensor having five electrode terminals in the number of electrode terminals.
- a sensor having four or less or six or more electrode terminals is not limited.
- the present invention can be applied to a sensor including
- first lead frame 11, second lead frame 211 having a plate surface width dimension of 1.1 [mm] and 0.8 [mm] are used.
- the width dimension of the plate surface in the lead frame is not limited to the above dimensions. That is, if the width of the plate surface is set to 0.5 [mm] or more and 2.0 [mm] or less, the above-described lead frames (the first lead frame 11 and the second lead frame 211) are used. The same operation and effect can be obtained.
- FIG. 8 is a perspective view showing the appearance of the lead frame 10 (first lead frame 11) including the projecting portion 18 in the element contact portion 16.
- FIG. 8 In the lead frame 10 (first lead frame 11) shown in FIG. 8, the illustration of the first frame locking portion 19 described above is omitted.
- the protruding portion 18 is provided at a portion of the element contact portion 16 that is expected to come into contact with the electrode terminal portion, and the top of the protruding portion 18 is brought into contact with the electrode terminal portion.
- the contact pressure of the element contact portion 16 with respect to the electrode terminal portion can be further increased.
- FIG. 8 shows an example in which the above-described element contact portion 16 of the first lead frame 11 is provided with the convex portion 18, the same as the above-described second element contact portion 216 of the second lead frame 211. May be formed.
- the frame contact portion 15 of the element contact portion 16 of the lead frame 10 may be formed in a curved shape. Specifically, as shown in FIG. 8, the frame contact portion 15 is curved toward the rear end in the axial direction so as to be separated from the frame main body portion 12 (in other words, bent in an arc shape). Accordingly, the frame main body 15 can be formed in a curved shape.
- the sensor (entire region air-fuel ratio sensor 2) is vibrated. Even when used in an environment such as a vehicle with severe intensities, it is possible to reduce the extent to which metal powder is generated due to friction between the frame contact portion 15 and the frame body portion 12. Thereby, when the sensor is actually used, it is possible to effectively suppress the adverse effect on the electrical connection between the lead frame 10 and the electrode terminal portion of the detection element.
- FIG. 8 shows an example in which the frame contact portion 15 of the element contact portion 16 of the first lead frame 11 is formed in a curved shape, but the second frame contact of the second lead frame 211 is formed.
- the contact portion 215 may also be formed in a curved shape.
- the frame contact portion 15 is not limited to a shape curved toward the rear end side in the axial direction as shown in FIG. 8, but as shown in FIG. It may be formed in a curved shape with a directional force toward the tip end in the axial direction so as to be away from the twelve.
- the leading end force of the frame main body 12 (the second frame main body 212) of the lead frame 10 also bends and changes direction, and the folded portion extending toward the rear end side in the axial direction. Is shown as the element contact portion 16 (second element contact portion 216), but the frame body 12 (second frame body 212) is provided between the electrode terminal portion of the detection element 4 and the folded portion.
- the lead frame 10 is arranged in the separator 82 so that the frame body 12 is formed into a curved curved shape so as to function as an element contact portion that contacts the electrode terminal of the detection element 4. good.
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Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/571,764 US7674143B2 (en) | 2003-09-17 | 2004-09-13 | Sensor and method of producing sensor |
JP2005514030A JPWO2005029058A1 (ja) | 2003-09-17 | 2004-09-13 | センサおよびセンサの製造方法 |
DE112004001724.6T DE112004001724B4 (de) | 2003-09-17 | 2004-09-13 | Sensor und Verfahren zur Herstellung eines Sensors |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003-324822 | 2003-09-17 | ||
JP2003324822 | 2003-09-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005029058A1 true WO2005029058A1 (ja) | 2005-03-31 |
Family
ID=34372758
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/013300 WO2005029058A1 (ja) | 2003-09-17 | 2004-09-13 | センサおよびセンサの製造方法 |
Country Status (5)
Country | Link |
---|---|
US (1) | US7674143B2 (ja) |
JP (1) | JPWO2005029058A1 (ja) |
CN (2) | CN1853097A (ja) |
DE (1) | DE112004001724B4 (ja) |
WO (1) | WO2005029058A1 (ja) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007047093A (ja) * | 2005-08-11 | 2007-02-22 | Ngk Spark Plug Co Ltd | センサ |
JP2007071582A (ja) * | 2005-09-05 | 2007-03-22 | Ngk Spark Plug Co Ltd | センサ |
US7568378B2 (en) | 2007-01-15 | 2009-08-04 | Ngk Spark Plug Co., Ltd. | Sensor |
JP2021092428A (ja) * | 2019-12-10 | 2021-06-17 | 日本碍子株式会社 | 金属端子 |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2343542B1 (en) * | 2003-09-17 | 2015-11-04 | NGK Spark Plug Co., Ltd. | Sensor and sensor producing method |
US8721855B2 (en) * | 2005-12-02 | 2014-05-13 | Ngk Spark Plug Co. Ltd. | Crimp contact, crimp contact with an electrical lead, gas sensor including said crimp contact and method for manufacturing said gas sensor |
DE102009006529A1 (de) * | 2009-01-28 | 2010-08-26 | Continental Automotive Gmbh | Positionssensor |
EP2500721B1 (en) * | 2009-11-09 | 2020-06-17 | NGK Insulators, Ltd. | Gas sensor, contact member of gas sensor, and sensor element holding member for contact member of gas sensor |
EP2825237B1 (en) * | 2012-03-15 | 2020-06-10 | Fisher & Paykel Healthcare Limited | Respiratory gas humidification system |
FR3006119B1 (fr) * | 2013-05-22 | 2015-05-29 | Legrand France | Appareillage electrique comportant un capteur de temperature loge dans un element de support |
JP6170441B2 (ja) * | 2014-01-10 | 2017-07-26 | 日本特殊陶業株式会社 | センサ |
JP6175004B2 (ja) * | 2014-01-10 | 2017-08-02 | 日本特殊陶業株式会社 | センサ |
CN105467075B (zh) * | 2015-10-21 | 2018-05-08 | 厦门宏发电力电器有限公司 | 一种氧传感器的电极连接结构 |
JP6635891B2 (ja) * | 2016-07-19 | 2020-01-29 | 日本特殊陶業株式会社 | ガスセンサ |
CN110319857B (zh) * | 2019-08-05 | 2024-05-14 | 北京恒泰翔基科技有限公司 | 一种具有高阻连接结构的传感器 |
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EP2343542B1 (en) * | 2003-09-17 | 2015-11-04 | NGK Spark Plug Co., Ltd. | Sensor and sensor producing method |
US7340942B2 (en) * | 2005-03-22 | 2008-03-11 | Ngk Spark Plug Co., Ltd. | Sensor including a sensor element having electrode terminals spaced apart from a connecting end thereof |
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2004
- 2004-09-13 US US10/571,764 patent/US7674143B2/en not_active Expired - Fee Related
- 2004-09-13 CN CNA2004800268607A patent/CN1853097A/zh active Pending
- 2004-09-13 CN CNB200480026417XA patent/CN100507545C/zh not_active Expired - Fee Related
- 2004-09-13 DE DE112004001724.6T patent/DE112004001724B4/de not_active Expired - Fee Related
- 2004-09-13 WO PCT/JP2004/013300 patent/WO2005029058A1/ja active Application Filing
- 2004-09-13 JP JP2005514030A patent/JPWO2005029058A1/ja active Pending
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JP2007047093A (ja) * | 2005-08-11 | 2007-02-22 | Ngk Spark Plug Co Ltd | センサ |
JP4628897B2 (ja) * | 2005-08-11 | 2011-02-09 | 日本特殊陶業株式会社 | センサ |
JP2007071582A (ja) * | 2005-09-05 | 2007-03-22 | Ngk Spark Plug Co Ltd | センサ |
JP4695945B2 (ja) * | 2005-09-05 | 2011-06-08 | 日本特殊陶業株式会社 | センサ |
US7568378B2 (en) | 2007-01-15 | 2009-08-04 | Ngk Spark Plug Co., Ltd. | Sensor |
JP2021092428A (ja) * | 2019-12-10 | 2021-06-17 | 日本碍子株式会社 | 金属端子 |
JP7320437B2 (ja) | 2019-12-10 | 2023-08-03 | 日本碍子株式会社 | 金属端子 |
Also Published As
Publication number | Publication date |
---|---|
DE112004001724T5 (de) | 2006-10-19 |
DE112004001724B4 (de) | 2016-04-28 |
CN1853097A (zh) | 2006-10-25 |
JPWO2005029058A1 (ja) | 2006-11-30 |
CN100507545C (zh) | 2009-07-01 |
CN1849509A (zh) | 2006-10-18 |
US20070096615A1 (en) | 2007-05-03 |
US7674143B2 (en) | 2010-03-09 |
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