WO2019138602A1 - Connection terminal support and electric machine - Google Patents
Connection terminal support and electric machine Download PDFInfo
- Publication number
- WO2019138602A1 WO2019138602A1 PCT/JP2018/030745 JP2018030745W WO2019138602A1 WO 2019138602 A1 WO2019138602 A1 WO 2019138602A1 JP 2018030745 W JP2018030745 W JP 2018030745W WO 2019138602 A1 WO2019138602 A1 WO 2019138602A1
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- WIPO (PCT)
- Prior art keywords
- tool
- section
- wire
- contact
- tip
- Prior art date
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- 238000003780 insertion Methods 0.000 claims abstract description 103
- 230000037431 insertion Effects 0.000 claims abstract description 103
- 238000005452 bending Methods 0.000 claims description 18
- 238000006073 displacement reaction Methods 0.000 claims description 6
- 238000000926 separation method Methods 0.000 claims description 4
- 230000000881 depressing effect Effects 0.000 claims 1
- 238000003825 pressing Methods 0.000 description 12
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 7
- 239000002184 metal Substances 0.000 description 4
- 241000755266 Kathetostoma giganteum Species 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/28—Clamped connections, spring connections
- H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
- H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
- H01R4/48185—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar adapted for axial insertion of a wire end
- H01R4/4819—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar adapted for axial insertion of a wire end the spring shape allowing insertion of the conductor end when the spring is unbiased
- H01R4/4821—Single-blade spring
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/28—Clamped connections, spring connections
- H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
- H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
- H01R4/484—Spring housing details
- H01R4/4842—Spring housing details the spring housing being provided with a single opening for insertion of a spring-activating tool
Definitions
- the present invention relates to a connection terminal block and an electric device.
- Patent Document 1 discloses, as a terminal structure for connecting an electric wire to an electric circuit, a push-in terminal which only needs to be inserted into the housing.
- a leaf spring bent in a substantially V shape is used.
- the plate spring is first pushed by the tip of the wire, and when the end of the wire passes the tip of the plate spring, it shifts to an engaged state in which the wire is pressed by the tip of the plate spring.
- Patent No. 5539809 gazette
- An object of the present invention is to prevent excessive force from being applied to a leaf spring when inserting a tool.
- connection terminal block is Wire insertion holes formed in the housing, A tool insertion hole formed in the housing along with the wire insertion hole, It extends from the back side of the tool insertion hole to the back side of the wire insertion hole inside the housing, and when the wire is inserted into the wire insertion hole, the tip engages with the wire and suppresses the displacement of the wire in the drawing direction.
- a leaf spring which is pushed by the tip of the tool and disengaged when the tool is inserted into the tool insertion hole;
- the tip side of the tool is formed so that the thickness is reduced by approaching the two end faces that are back to back toward the tip,
- the tool insertion holes have a pair of guide surfaces facing each other in parallel with the width direction of the leaf spring, and the separation distance becomes narrower toward the back side,
- the pair of guide surfaces are set to contact each of the end surfaces and to make at least one surface contact with the end surfaces or line contact along the width direction until the tool reaches a position where the engagement is released. It is done.
- the angle around the axis of the tool is guided along the guide surface, and when reaching the position for disengaging, the end face of the tool and the guide surface of the tool insertion hole Make surface contact or line contact. Therefore, since the whole of the tip end of the tool in the width direction comes into contact with the leaf spring, it is possible to suppress the application of an excessive force to the leaf spring.
- connection terminal block It is a perspective view of a connection terminal block. It is the perspective view of the connection terminal block which showed the inside partially. It is sectional drawing which shows the state before inserting a ferrule terminal. It is sectional drawing of the state which the terminal part contact
- FIG. 7 is a cross-sectional view of a state in which insertion of a ferrule terminal is completed. It is sectional drawing of the state which inserted the tool. It is the figure which showed a mode when inserting a tool (parallel). It is the figure which showed a mode when inserting a tool (non parallel).
- FIG. 1 is a perspective view of the connection terminal block.
- the connection terminal block 11 is a terminal socket for connecting a relay to an external circuit.
- a primary side terminal portion 12 for a coil terminal to which a primary side lead wire can be connected is formed.
- a relay terminal portion 13 to which a relay having contacts of four poles can be connected is formed.
- a secondary side terminal portion 14 to which a secondary side lead wire for common terminal, a contact terminal, and b contact terminal can be connected.
- the primary side terminal portion 12, the relay terminal portion 13, and the secondary side terminal portion 14 are integrated by a housing 15.
- the relay terminal portion 13 is disposed on the rear side in the depth direction with respect to the primary side terminal portion 12 and the secondary side terminal portion 14 on the front side in the depth direction.
- the primary side terminal portion 12 has a spring-type terminal structure, and a plurality of wire insertion holes 21 into which lead wires can be inserted along the depth direction are formed on the upper surface of the housing 15.
- Two wire insertion holes 21c and 21d for one polarity are formed at one end side in the width direction, and two wire insertion holes 21a and 21b for the other polarity are formed at the other end side in the width direction. It is formed. Therefore, there are a total of four wire insertion holes 21 in the primary side terminal portion 12.
- the two wire insertion holes 21a and 21b or 21c and 21d having the same polarity are arranged to be shifted in both the width direction and the vertical direction.
- a plurality of tool insertion holes 22 which are vertically aligned with the respective wire insertion holes 21 and into which a tool can be inserted along the depth direction are formed.
- One tool insertion hole 22 is provided for each of the wire insertion holes 21a to 21d, and the tool insertion hole 22 is disposed on the other end side in the vertical direction with respect to the wire insertion holes 21a to 21d. Therefore, there are a total of four tool insertion holes 22 in the primary side terminal portion 12.
- the relay terminal portion 13 has a plug-in type terminal structure, and a plurality of plug insertion ports 23 into which the plug can be inserted are formed on the top surface of the housing 15 along the depth direction. At one end side in the longitudinal direction, two plug insertion ports 23 for coil terminals are formed. On the other end side in the vertical direction, three plug insertion ports 23 for the common terminal, for the a contact terminal and for the b contact terminal are formed along the vertical direction, and these three are taken as one set, Four groups are arranged along the width direction. Therefore, the relay terminal portion 13 has a total of 14 plug receptacles 23.
- the secondary side terminal portion 14 has a spring-type terminal structure, and a plurality of wire insertion holes 24 corresponding to four poles into which lead wires can be inserted along the depth direction are formed on the upper surface of the housing 15 There is.
- the secondary side terminal portion 14 has three steps whose heights in the depth direction sequentially decrease from one end side to the other end side in the vertical direction.
- two wire insertion holes 24a to 24h are formed per pole for the b contact terminal.
- two wire insertion holes 24i to 24p are formed per pole for the a-contact terminal.
- two wire insertion holes 24q to 24x are formed per pole for a common terminal.
- wire insertion holes 24 (for example, 24a and 24b) of one electrode are arranged to be shifted in both the width direction and the longitudinal direction.
- These six wire insertion holes 24 (for example, 24a, 24b, 24i, 24j, 24q, and 24r) form one set, and four poles are arranged along the width direction. Therefore, there are a total of 24 wire insertion holes 24 in the secondary side terminal portion 14.
- a plurality of tool insertion holes 25 which are vertically aligned with the respective wire insertion holes 24 and into which a tool can be inserted along the depth direction are formed.
- each tool insertion hole 25 is provided for each of the wire insertion holes 24a to 24x, and each tool insertion hole 25 is disposed on one end side in the longitudinal direction with respect to the wire insertion hole 24. Therefore, there are a total of 24 tool insertion holes 25 in the secondary side terminal portion 14.
- FIG. 2 is a perspective view of the connection terminal block partially showing the inside. Since the primary side terminal portion 12 and the secondary side terminal portion 14 basically have the same structure, the secondary side terminal portion 14 will be described as an example here.
- a blade receiving spring 31 is provided on the back side in the depth direction of each plug insertion port 23.
- the blade receiving spring 31 is provided with a pair of oppositely biased spring pieces, and holds the inserted plug between the pair of spring pieces.
- a spring metal fitting 32 is provided on the far side in the depth direction of each of the wire insertion holes 24a to 24x, and each spring metal fitting 32 is attached to the intermediate base 46.
- the spring metal fitting 32 includes a pressing surface 33 substantially parallel to the depth direction and the width direction, and a plate spring 34 biased against the pressing surface 33.
- the spring fitting 32 is inserted between the pressing surface 33 and the plate spring 34. Sandwich the lead wire.
- a relay conductive plate 35 for electrically connecting the blade receiving spring 31 and the spring metal fitting 32 is provided on the back side in the depth direction.
- the relay conductive plate 35 has two systems for coil terminals, and four systems for the common terminal, the a contact terminal, and the b contact terminal.
- the ferrule terminal 17 is crimped to the lead wire 16 (electric wire) inserted into the electric wire insertion hole 24.
- the ferrule terminal 17 inserted into the wire insertion hole 24x of FIG. 1 is shown.
- the ferrule terminal 17 is a rod-type crimp terminal for preventing wire breakdown and stabilizing the quality of the electrical connection.
- the ferrule terminal 17 includes an insulated collar portion 18 and a terminal portion 19.
- a tapered surface 18 a having a smaller diameter toward the tip is formed on the tip end side of the collar 18, and the terminal 19 is thinner than the diameter of the collar 18.
- FIG. 3 is a cross-sectional view showing a state before inserting the ferrule terminal.
- the wire insertion hole 24 includes a large diameter portion 43, an abutting portion 44, and a small diameter portion 45 in order toward the inside of the housing 15.
- the diameter of the large diameter portion 43 is slightly larger than the collar portion 18.
- the contact portion 44 is a tapered surface whose diameter decreases toward the back in the depth direction.
- the taper angle of the contact portion 44 with respect to the depth direction is larger than the angle of the tapered surface 18 a with respect to the depth direction.
- the diameter of the small diameter portion 45 is smaller than the diameter of the collar portion 18 and larger than the diameter of the terminal portion 19.
- the plate spring 34 is made of, for example, stainless steel, and the plate thickness is about 0.5 mm and uniform.
- the leaf spring 34 includes a free end section 51, a fixed end section 52, a first bending section 53, a second bending section 54, and a tool contact section 55.
- a position through which the terminal portion 19 passes inside the housing 15 is referred to as a terminal path 56 (electric wire path).
- the free end side section 51 is disposed so that the tip end projects linearly toward the back side in the insertion direction and the terminal track 56, the plate surface is intersected with the terminal track 56, and is biased toward the pressing surface 33. Section. In the state where the ferrule terminal 17 is not inserted, the tip end 51 a of the free end side section 51 is in contact with the pressing surface 33.
- the fixed end side section 52 is a straight section fixed to the intermediate base 46 and extending in parallel with the terminal track 56.
- the first bending section 53 is a section which is interposed between the free end side section 51 and the fixed end side section 52 and is curved to be convex as viewed from the front side in the insertion direction. If the radius of curvature is too small, plastic deformation is likely to occur and the elastic force is further reduced. Therefore, the radius of curvature is set to be twice or more, preferably three times or more, of the plate thickness. Therefore, it is preferable to set it as the curvature radius of 1.5 mm or more here.
- the second bending section 54 is interposed between the free end section 51 and the first bending section 53, and is a section bent on the front side in the insertion direction or on the concave side as viewed from the terminal path 56. is there.
- the tool contact section 55 is interposed between the first bending section 53 and the second bending section 54, and the leaf spring 34 is fixed to the terminal path 56 by the outer peripheral surface of the tool when the tool is inserted. It is a linear section pushed to the end side.
- FIG. 4 is a cross-sectional view of the state in which the terminal portion is in contact with the free end section of the plate spring.
- the terminal portion 19 passes through the small diameter portion 45, and the tip 19a of the terminal portion 19 abuts on the plate surface of the free end section 51 of the plate spring 34.
- the tip 19a of the terminal portion 19 pushes the plate surface of the free end section 51 of the plate spring 34 to the back side in the depth direction.
- the range from the free end side section 51 to the tool contact section 55 rotates around the curvature center of the first bending section 53 as a fulcrum, and the degree of opening of the tool contact section 55 with respect to the fixed end side section 52 Of the leaf spring 34 in the closing direction.
- FIG. 5 is a cross-sectional view of the state in which the tip of the terminal portion has reached the tip of the free end section.
- the tip 19 a of the terminal portion 19 reaches the tip 51 a of the free end section 51.
- the terminal section 19 enters so as to cut between the tip 51a of the free end section 51 and the pressing surface 33 Do.
- the distal end 51 a of the free end side section 51 shifts to an engaged state in which the terminal portion 19 is pressed against the pressing surface 33.
- the displacement of the terminal portion 19 in the insertion direction becomes the forward direction and is allowed.
- the displacement in the pullout direction is the reverse direction in which the free end side section 51 is reversed, the tip 51a of the free end side section 51 is caught on the terminal portion 19, and the displacement in the pullout direction is suppressed. Therefore, loosening or falling off of the ferrule terminal 17 can be suppressed.
- the terminal portion 19 is held between the end 51 a of the free end side section 51 and the pressing surface 33, whereby the terminal 19 is held in a restraining state.
- the width dimension of the terminal portion 19 is about 1.5 mm, and the gap between the front end 51a of the free end side section 51 and the pressing surface 33 is equal to the width dimension of the terminal portion 19.
- the ferrule terminal 17 is depicted in a non-inclined state, but the terminal 19 is actually pressed by the plate spring 34 toward the pressing surface 33, whereby the ferrule terminal 17 is in the depth direction. It will be in an inclined state. Therefore, when the ferrule terminal 17 is inserted, the diameter of the large diameter portion 43, the taper angle of the contact portion 44, the diameter of the small diameter portion 45, and the like are set to positively allow slight inclination.
- FIG. 6 is a cross-sectional view of a state in which insertion of the ferrule terminal is completed.
- the tip end 19 a of the terminal portion 19 is set to have a gap with respect to the bottom surface 47 in the housing 15.
- the length of the collar portion 18 is about 6.0 mm
- the length of the terminal portion 19 is about 8.0 mm
- the overall length is about 14.0 mm.
- FIG. 7 is a cross-sectional view of a state in which the tool is inserted.
- the tool insertion hole 25 is a first bending section from the other end side in the longitudinal direction in the free end side section 51 when viewed from the near side in the depth direction It is disposed at a position overlapping with the area extending to the other end side in the longitudinal direction 53.
- the tool insertion hole 25 is formed to be inclined by about 10 degrees with respect to the depth direction so as to approach the terminal portion 19 as it goes to the far side in the depth direction.
- the tool contact section 55 extends substantially parallel to the axis of the tool insertion hole 25.
- a minus driver is used for the tool 61.
- the outer peripheral surface of the tool 61 slides in a range from the one end side in the longitudinal direction in the first bending section 53 to the tool contact section 55 while sliding, and the tool contact section 55 moves to the one end side in the longitudinal direction And push.
- the tip end of the tool 61 abuts in a range from the other end side in the longitudinal direction in the free end side section 51 to the second bending section 54, and the free end side section 51 is pushed down.
- the degree of opening of the tool contact section 55 with respect to the fixed end section 52 is narrowed, that is, in the closing direction, by pushing the tool contact section 55 toward one end in the vertical direction or pushing down the free end section 51.
- the leaf spring 34 is elastically deformed. As a result, the engagement between the end 51a of the free end section 51 and the terminal 19 is released, and the terminal 19 is released from being restrained by the plate spring 34, and the ferrule terminal 17 can be pulled out. .
- FIG. 8 is a diagram (parallel) showing how the tool is inserted, and shows the case where the tip of the tool is inserted parallel to the guiding surface of the tool insertion hole.
- the tool 61 is a minus driver as described above. Therefore, the tip end side is formed so that the thickness becomes smaller as the two end faces 62 which are back-to-back approach each other toward the tip, and the cutting edge has a single-letter shape.
- the two end faces 62 are linear tapers.
- the width at the tip end is constant and equal to the diameter of the shaft.
- the tool insertion holes 25 are substantially rectangular when viewed from the near side in the depth direction, and face each other in parallel with the width direction of the plate spring 34, and the distance between them narrows toward the far side 71, 72 are provided.
- the side closer to the wire insertion hole 24 is referred to as a guide surface 71, and the side farther from the wire insertion hole 24 is referred to as a guide surface 72.
- the angle between the guide surfaces 71 and 72 is the same as the taper angle of the end face 62 of the tool 61.
- Both of the guide surfaces 71 and 72 are inclined to the side away from the ferrule terminal 17 toward the front side in the depth direction.
- (a) shows the state before insertion
- (b) and (c) show the state in the middle of insertion
- (d) shows the state after insertion.
- the guide surfaces 71, 72 contact each of the end surfaces 62 and at least one is in surface contact with the end surface 62 or a line contact along the width direction until the tool 61 reaches a position where the engagement is released. It is set to In (b) in the figure, the engagement release position of the tool 61 is indicated by a two-dot chain line.
- the guide surfaces 71, 72 contact each of the end faces 62 until the tool 61 reaches a position where the tool 61 is disengaged, and at least one of them faces the end face 62. It is set to contact or line contact along the width direction.
- the angle around the axis of the tool 61 is guided along the guide surfaces 71 and 72, and the end surface 62 of the tool 61 reaches the tool insertion hole 25 when reaching the position for disengaging.
- the angle between the guide surfaces 71 and 72 is the same as the taper angle of the end face 62 of the tool 61.
- the tool 61 when the tool 61 is inserted to a position where the engagement is released, the tool 61 can be fitted tightly on the pair of guide surfaces 71, 72, and rattling of the tool 61 can be suppressed. At this time, even if the operator releases the tool 61, the tool 61 does not fall or fall out of the tool insertion hole 25.
- FIG. 9 is a view (non-parallel) showing how the tool is inserted, and shows the case where the tip of the tool is inserted non-parallel to the guide surface of the tool insertion hole.
- (a) shows the state before insertion
- (b) and (c) show the state in the middle of insertion
- (d) shows the state after insertion.
- the tool 61 is inserted so that each of the end surfaces 62 is not parallel to the guide surfaces 71 and 72, the end surface 62 contacts the guide surfaces 71 and 72 in the middle of insertion, and the tools 61 are inserted as they are inserted deeper.
- a twisting force acts on the surface, which naturally promotes angular change around the axis.
- each of the end surfaces 62 moves to the guide surfaces 71 and 72 as the insertion of the tool 61 progresses. It is guided and corrected so that the angle around the axis changes in the opposite direction.
- the widest separation distance between the guide surfaces 71 and 72 is set to be equal to or less than the width dimension of the cutting edge of the tool 61. Therefore, in the direction in which the width direction of the end surface 62 is substantially orthogonal to the guide surfaces 71 and 72, insertion of the tool 61 can be prevented. This allows the operator to perceive that the insertion of the tool 61 has an acceptable range of angles around the axis, and can more easily promote the change in angle around the axis during the insertion process.
- the angle formed between the guide surfaces 71 and 72 is the same as the taper angle of the end face 62 of the tool 61, but the invention is not limited to this. If the angle between the guide surfaces 71 and 72 is slightly larger than the taper angle of the end surface 62, a slight play can be secured when the tool 61 is inserted.
- the ferrule terminal 17 is crimped to the lead wire 16 has been described, the present invention is not limited to this, and a single wire, a stranded wire, or a bare wire may be used.
- the c-contact relay in which the a-contact terminal and the b-contact terminal are combined is described.
- the present invention is not limited to this, and can be applied to the a-contact relay and the b-contact relay.
- the relay having the four-pole contact has been described, the present invention is not limited to this, and can be applied to a one-pole, two-pole or three-pole relay.
- the invention is not limited to relays, and can be applied to timers.
- the terminal socket for connecting a relay, a timer, etc. to an external circuit was described, it is not limited to this. The point is that any spring-type terminal structure capable of holding the ferrule terminal 17 inserted into the housing 15 can be applied to any other electric devices and accessories.
- SYMBOLS 11 Connection terminal block, 12 ... Primary side terminal part, 13 ... Relay terminal part, 14 ... Secondary side terminal part, 15 ... Housing, 16 ... Lead wire, 17 ... Ferrule terminal, 18 ... Collar part, 18a ... Taper surface , 19: terminal part, 19a: tip, 21: electric wire insertion hole, 22: tool insertion hole, 23: plug insertion port, 24: electric wire insertion hole, 25: tool insertion hole, 30: angle, 32 ... Spring fitting, 33 ... pressing surface, 34 ... leaf spring, 35 ... relay conductive plate, 43 ... large diameter part, 44 ... contact part, 45 ... small diameter part, 46 ... middle base, 47 ... bottom surface, 51 ...
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- Connections Arranged To Contact A Plurality Of Conductors (AREA)
Abstract
In this invention, a tool insertion hole (25) is provided with a pair of guide surfaces (71), (72) parallel to the width direction of a plate spring (34) that face one another such that the spacing distance therebetween becomes narrower toward the depth side. The pair of guide surfaces (71), (72) are set in such a manner as to be in contact with each end surface (62) until a tool (61) reaches a position for releasing an engagement, in so doing, at least one is in a surface contact, or a contact through a straight line along the width direction, with one of the end surfaces (62).
Description
本発明は、接続端子台、電気機器に関するものである。
The present invention relates to a connection terminal block and an electric device.
特許文献1には、電線を電気回路に接続するための端子構造として、電線をハウジングに差し込むだけでよいプッシュイン端子が開示されている。この端子構造では、略V字状に曲げられた板ばねを使用している。電線を差し込んでゆくと、まず電線の先端で板ばねを押してゆき、電線の先端が板ばねの先端を越えると、今度は板ばねの先端で電線を押し付ける係合状態へと移行する。
Patent Document 1 discloses, as a terminal structure for connecting an electric wire to an electric circuit, a push-in terminal which only needs to be inserted into the housing. In this terminal structure, a leaf spring bent in a substantially V shape is used. As the wire is inserted, the plate spring is first pushed by the tip of the wire, and when the end of the wire passes the tip of the plate spring, it shifts to an engaged state in which the wire is pressed by the tip of the plate spring.
板ばねが電線を押し付けている状態から電線を引き抜くための構造として、工具差込穴にマイナスドライバを差し込むことで板ばねを弾性変形させ、電線の引き抜きを可能にするものがある。マイナスドライバは刃先が一文字状であるため、工具差込穴に差し込むときの軸周りの角度によっては、板ばねに対して刃先の全体ではなく端部だけが接触し、板ばねに過剰な力が加わる可能性がある。
本発明の目的は、工具を差し込んだときに板ばねに過剰な力が加わることを抑制することである。 As a structure for pulling out the electric wire from the state where the leaf spring is pressing the electric wire, there is one in which the flat spring is elastically deformed by inserting a minus driver into the tool insertion hole, and the electric wire can be pulled out. Because the cutting edge of the flathead screwdriver is one-letter, depending on the angle around the axis when inserting into the tool insertion hole, only the end of the cutting edge contacts the leaf spring, and only the end part contacts and the excessive force is generated on the leaf spring. There is a possibility of joining.
An object of the present invention is to prevent excessive force from being applied to a leaf spring when inserting a tool.
本発明の目的は、工具を差し込んだときに板ばねに過剰な力が加わることを抑制することである。 As a structure for pulling out the electric wire from the state where the leaf spring is pressing the electric wire, there is one in which the flat spring is elastically deformed by inserting a minus driver into the tool insertion hole, and the electric wire can be pulled out. Because the cutting edge of the flathead screwdriver is one-letter, depending on the angle around the axis when inserting into the tool insertion hole, only the end of the cutting edge contacts the leaf spring, and only the end part contacts and the excessive force is generated on the leaf spring. There is a possibility of joining.
An object of the present invention is to prevent excessive force from being applied to a leaf spring when inserting a tool.
本発明の一態様に係る接続端子台は、
ハウジングに形成された電線差込穴と、
電線差込穴と並んでハウジングに形成された工具差込穴と、
ハウジングの内部で工具差込穴の奥側から電線差込穴の奥側へと延び、電線差込穴に電線が差し込まれると先端が電線に係合して電線の引き抜き方向の変位を抑制し、工具差込穴に工具が差し込まれると工具の先端に押されて係合が解除される板ばねと、を備え、
工具の先端側は、背中合わせとなる二つの端面が先端に向かうほど接近することで厚みが小さくなるように形成されており、
工具差込穴は、互いが板ばねの幅方向と平行な状態で対向し、奥側に向かうほど離隔距離が狭くなる一対の案内面を備え、
一対の案内面は、工具が係合を解除する位置へ到達するまでに、端面の各々に接触すると共に、少なくとも一方が端面に対して面接触する又は幅方向に沿って線接触するように設定されている。 The connection terminal block according to one aspect of the present invention is
Wire insertion holes formed in the housing,
A tool insertion hole formed in the housing along with the wire insertion hole,
It extends from the back side of the tool insertion hole to the back side of the wire insertion hole inside the housing, and when the wire is inserted into the wire insertion hole, the tip engages with the wire and suppresses the displacement of the wire in the drawing direction. And a leaf spring which is pushed by the tip of the tool and disengaged when the tool is inserted into the tool insertion hole;
The tip side of the tool is formed so that the thickness is reduced by approaching the two end faces that are back to back toward the tip,
The tool insertion holes have a pair of guide surfaces facing each other in parallel with the width direction of the leaf spring, and the separation distance becomes narrower toward the back side,
The pair of guide surfaces are set to contact each of the end surfaces and to make at least one surface contact with the end surfaces or line contact along the width direction until the tool reaches a position where the engagement is released. It is done.
ハウジングに形成された電線差込穴と、
電線差込穴と並んでハウジングに形成された工具差込穴と、
ハウジングの内部で工具差込穴の奥側から電線差込穴の奥側へと延び、電線差込穴に電線が差し込まれると先端が電線に係合して電線の引き抜き方向の変位を抑制し、工具差込穴に工具が差し込まれると工具の先端に押されて係合が解除される板ばねと、を備え、
工具の先端側は、背中合わせとなる二つの端面が先端に向かうほど接近することで厚みが小さくなるように形成されており、
工具差込穴は、互いが板ばねの幅方向と平行な状態で対向し、奥側に向かうほど離隔距離が狭くなる一対の案内面を備え、
一対の案内面は、工具が係合を解除する位置へ到達するまでに、端面の各々に接触すると共に、少なくとも一方が端面に対して面接触する又は幅方向に沿って線接触するように設定されている。 The connection terminal block according to one aspect of the present invention is
Wire insertion holes formed in the housing,
A tool insertion hole formed in the housing along with the wire insertion hole,
It extends from the back side of the tool insertion hole to the back side of the wire insertion hole inside the housing, and when the wire is inserted into the wire insertion hole, the tip engages with the wire and suppresses the displacement of the wire in the drawing direction. And a leaf spring which is pushed by the tip of the tool and disengaged when the tool is inserted into the tool insertion hole;
The tip side of the tool is formed so that the thickness is reduced by approaching the two end faces that are back to back toward the tip,
The tool insertion holes have a pair of guide surfaces facing each other in parallel with the width direction of the leaf spring, and the separation distance becomes narrower toward the back side,
The pair of guide surfaces are set to contact each of the end surfaces and to make at least one surface contact with the end surfaces or line contact along the width direction until the tool reaches a position where the engagement is released. It is done.
本発明によれば、工具が差し込まれると、案内面に沿って工具の軸周りの角度が案内され、係合を解除する位置へ到達したときには、工具の端面と工具差込穴の案内面とが面接触又は線接触する。したがって、工具の先端のうち、幅方向の全体が板ばねに接触するようになるので、板ばねに過剰な力が加わることを抑制できる。
According to the present invention, when the tool is inserted, the angle around the axis of the tool is guided along the guide surface, and when reaching the position for disengaging, the end face of the tool and the guide surface of the tool insertion hole Make surface contact or line contact. Therefore, since the whole of the tip end of the tool in the width direction comes into contact with the leaf spring, it is possible to suppress the application of an excessive force to the leaf spring.
以下、本発明の実施形態を図面に基づいて説明する。なお、各図面は模式的なものであって、現実のものとは異なる場合がある。また、以下の実施形態は、本発明の技術的思想を具体化するための装置や方法を例示するものであり、構成を下記のものに特定するものでない。すなわち、本発明の技術的思想は、特許請求の範囲に記載された技術的範囲内において、種々の変更を加えることができる。
Hereinafter, embodiments of the present invention will be described based on the drawings. Each drawing is schematic and may be different from the actual one. In addition, the following embodiments illustrate apparatuses and methods for embodying the technical idea of the present invention, and the configuration is not specified to the following. That is, the technical idea of the present invention can be variously modified within the technical scope described in the claims.
《構成》
図1は、接続端子台の斜視図である。
以下の説明では、互いに直交する三方向を、便宜的に、幅方向、縦方向、及び奥行方向とする。
接続端子台11は、リレーを外部回路に接続するためのターミナルソケットである。縦方向の一端側には、一次側のリード線を接続可能なコイル端子用の一次側端子部12が形成されている。縦方向の中央には、例えば4極の接点を有するリレーを接続可能なリレー端子部13が形成されている。縦方向の他端側には、コモン端子用、a接点端子用、b接点端子用の二次側のリード線を接続可能な二次側端子部14が形成されている。一次側端子部12、リレー端子部13、及び二次側端子部14は、ハウジング15によって一体化されている。
ハウジング15において、奥行方向の手前側となる上面は、リレー端子部13が一次側端子部12及び二次側端子部14よりも奥行方向の奥側に配置されている。 "Constitution"
FIG. 1 is a perspective view of the connection terminal block.
In the following description, three directions orthogonal to one another are referred to as the width direction, the vertical direction, and the depth direction for convenience.
Theconnection terminal block 11 is a terminal socket for connecting a relay to an external circuit. At one end side in the longitudinal direction, a primary side terminal portion 12 for a coil terminal to which a primary side lead wire can be connected is formed. At the center in the longitudinal direction, for example, a relay terminal portion 13 to which a relay having contacts of four poles can be connected is formed. On the other end side in the vertical direction, there is formed a secondary side terminal portion 14 to which a secondary side lead wire for common terminal, a contact terminal, and b contact terminal can be connected. The primary side terminal portion 12, the relay terminal portion 13, and the secondary side terminal portion 14 are integrated by a housing 15.
In thehousing 15, the relay terminal portion 13 is disposed on the rear side in the depth direction with respect to the primary side terminal portion 12 and the secondary side terminal portion 14 on the front side in the depth direction.
図1は、接続端子台の斜視図である。
以下の説明では、互いに直交する三方向を、便宜的に、幅方向、縦方向、及び奥行方向とする。
接続端子台11は、リレーを外部回路に接続するためのターミナルソケットである。縦方向の一端側には、一次側のリード線を接続可能なコイル端子用の一次側端子部12が形成されている。縦方向の中央には、例えば4極の接点を有するリレーを接続可能なリレー端子部13が形成されている。縦方向の他端側には、コモン端子用、a接点端子用、b接点端子用の二次側のリード線を接続可能な二次側端子部14が形成されている。一次側端子部12、リレー端子部13、及び二次側端子部14は、ハウジング15によって一体化されている。
ハウジング15において、奥行方向の手前側となる上面は、リレー端子部13が一次側端子部12及び二次側端子部14よりも奥行方向の奥側に配置されている。 "Constitution"
FIG. 1 is a perspective view of the connection terminal block.
In the following description, three directions orthogonal to one another are referred to as the width direction, the vertical direction, and the depth direction for convenience.
The
In the
一次側端子部12は、スプリング式の端子構造であり、ハウジング15の上面には、奥行方向に沿ってリード線を差し込み可能な複数の電線差込穴21が形成されている。幅方向の一端側には、一方の極性用として二つの電線差込穴21cと21dが形成され、幅方向の他端側には、他方の極性用として二つの電線差込穴21aと21bが形成されている。したがって、一次側端子部12には計4個の電線差込穴21がある。極性が同一となる二つの電線差込穴21aと21b、または21cと21dは、幅方向及び縦方向の双方にずらして配列されている。ハウジング15の上面には、各電線差込穴21に対して縦方向に並び、奥行方向に沿って工具を差し込み可能な複数の工具差込穴22が形成されている。工具差込穴22は、各電線差込穴21a~21dに対して一つずつ設けられており、夫々、電線差込穴21a~21dよりも縦方向の他端側に配置されている。したがって、一次側端子部12には計4個の工具差込穴22がある。
The primary side terminal portion 12 has a spring-type terminal structure, and a plurality of wire insertion holes 21 into which lead wires can be inserted along the depth direction are formed on the upper surface of the housing 15. Two wire insertion holes 21c and 21d for one polarity are formed at one end side in the width direction, and two wire insertion holes 21a and 21b for the other polarity are formed at the other end side in the width direction. It is formed. Therefore, there are a total of four wire insertion holes 21 in the primary side terminal portion 12. The two wire insertion holes 21a and 21b or 21c and 21d having the same polarity are arranged to be shifted in both the width direction and the vertical direction. On the upper surface of the housing 15, a plurality of tool insertion holes 22 which are vertically aligned with the respective wire insertion holes 21 and into which a tool can be inserted along the depth direction are formed. One tool insertion hole 22 is provided for each of the wire insertion holes 21a to 21d, and the tool insertion hole 22 is disposed on the other end side in the vertical direction with respect to the wire insertion holes 21a to 21d. Therefore, there are a total of four tool insertion holes 22 in the primary side terminal portion 12.
リレー端子部13は、プラグイン式の端子構造であり、ハウジング15の上面には、奥行方向に沿ってプラグを差し込み可能な複数のプラグ差込口23が形成されている。縦方向の一端側には、コイル端子用として二つのプラグ差込口23が形成されている。縦方向の他端側には、コモン端子用、a接点端子用、及びb接点端子用として三つのプラグ差込口23が縦方向に沿って形成されており、これら三つを一組とし、幅方向に沿って四組分が配列されている。したがって、リレー端子部13には計14個のプラグ差込口23がある。
The relay terminal portion 13 has a plug-in type terminal structure, and a plurality of plug insertion ports 23 into which the plug can be inserted are formed on the top surface of the housing 15 along the depth direction. At one end side in the longitudinal direction, two plug insertion ports 23 for coil terminals are formed. On the other end side in the vertical direction, three plug insertion ports 23 for the common terminal, for the a contact terminal and for the b contact terminal are formed along the vertical direction, and these three are taken as one set, Four groups are arranged along the width direction. Therefore, the relay terminal portion 13 has a total of 14 plug receptacles 23.
二次側端子部14は、スプリング式の端子構造であり、ハウジング15の上面には、奥行方向に沿ってリード線を差し込み可能な4極に対応する複数の電線差込穴24が形成されている。二次側端子部14は、縦方向の一端側から他端側に向けて、奥行方向の高さが順に低くなる三つの段がある。上段には、例えばb接点端子用として1極あたり二つの電線差込穴24a~24hが形成されている。中段には、例えばa接点端子用として1極あたり二つの電線差込穴24i~24pが形成されている。下段には、例えばコモン端子用として1極あたり二つの電線差込穴24q~24xが形成されている。各段において、1電極の二つの電線差込穴24(例えば24aと24b)は、幅方向及び縦方向の双方にずらして配列されている。これら六つの電線差込穴24(例えば24a、24b、24i、24j、24q、及び24r)を一組とし、幅方向に沿って4極分が配列されている。したがって、二次側端子部14には計24個の電線差込穴24がある。ハウジング15の上面には、各電線差込穴24に対して縦方向に並び、奥行方向に沿って工具を差し込み可能な複数の工具差込穴25が形成されている。各段において、工具差込穴25は、各電線差込穴24a~24xに対して一つずつ設けられており、夫々、電線差込穴24よりも縦方向の一端側に配置されている。したがって、二次側端子部14には計24個の工具差込穴25がある。
The secondary side terminal portion 14 has a spring-type terminal structure, and a plurality of wire insertion holes 24 corresponding to four poles into which lead wires can be inserted along the depth direction are formed on the upper surface of the housing 15 There is. The secondary side terminal portion 14 has three steps whose heights in the depth direction sequentially decrease from one end side to the other end side in the vertical direction. In the upper stage, for example, two wire insertion holes 24a to 24h are formed per pole for the b contact terminal. In the middle stage, for example, two wire insertion holes 24i to 24p are formed per pole for the a-contact terminal. On the lower side, for example, two wire insertion holes 24q to 24x are formed per pole for a common terminal. In each stage, two wire insertion holes 24 (for example, 24a and 24b) of one electrode are arranged to be shifted in both the width direction and the longitudinal direction. These six wire insertion holes 24 (for example, 24a, 24b, 24i, 24j, 24q, and 24r) form one set, and four poles are arranged along the width direction. Therefore, there are a total of 24 wire insertion holes 24 in the secondary side terminal portion 14. On the upper surface of the housing 15, a plurality of tool insertion holes 25 which are vertically aligned with the respective wire insertion holes 24 and into which a tool can be inserted along the depth direction are formed. In each stage, one tool insertion hole 25 is provided for each of the wire insertion holes 24a to 24x, and each tool insertion hole 25 is disposed on one end side in the longitudinal direction with respect to the wire insertion hole 24. Therefore, there are a total of 24 tool insertion holes 25 in the secondary side terminal portion 14.
図2は、部分的に内部を示した接続端子台の斜視図である。
一次側端子部12、及び二次側端子部14は、基本的に同様の構造であるため、ここでは二次側端子部14を例に説明する。
ハウジング15の内部には、各プラグ差込口23における奥行方向の奥側に、刃受けばね31が設けられている。刃受けばね31は、対向し付勢し合う一対のばね片を備え、この一対のばね片の間に差し込まれたプラグを挟持する。各電線差込穴24a~24xにおける奥行方向の奥側には、スプリング金具32が設けられており、各スプリング金具32は中間ベース46に取付けられている。スプリング金具32は、奥行方向及び幅方向と略平行な押付面33と、この押付面33に対して付勢された板ばね34とを備え、これら押付面33と板ばね34との間に差し込まれたリード線を挟持する。刃受けばね31及びスプリング金具32よりも奥行方向の奥側には、これらを電気的に接続する中継導電板35が設けられている。中継導電板35は、コイル端子用に二系統あり、コモン端子用、a接点端子用、及びb接点端子用に、夫々、四系統ある。 FIG. 2 is a perspective view of the connection terminal block partially showing the inside.
Since the primaryside terminal portion 12 and the secondary side terminal portion 14 basically have the same structure, the secondary side terminal portion 14 will be described as an example here.
Inside thehousing 15, a blade receiving spring 31 is provided on the back side in the depth direction of each plug insertion port 23. The blade receiving spring 31 is provided with a pair of oppositely biased spring pieces, and holds the inserted plug between the pair of spring pieces. A spring metal fitting 32 is provided on the far side in the depth direction of each of the wire insertion holes 24a to 24x, and each spring metal fitting 32 is attached to the intermediate base 46. The spring metal fitting 32 includes a pressing surface 33 substantially parallel to the depth direction and the width direction, and a plate spring 34 biased against the pressing surface 33. The spring fitting 32 is inserted between the pressing surface 33 and the plate spring 34. Sandwich the lead wire. A relay conductive plate 35 for electrically connecting the blade receiving spring 31 and the spring metal fitting 32 is provided on the back side in the depth direction. The relay conductive plate 35 has two systems for coil terminals, and four systems for the common terminal, the a contact terminal, and the b contact terminal.
一次側端子部12、及び二次側端子部14は、基本的に同様の構造であるため、ここでは二次側端子部14を例に説明する。
ハウジング15の内部には、各プラグ差込口23における奥行方向の奥側に、刃受けばね31が設けられている。刃受けばね31は、対向し付勢し合う一対のばね片を備え、この一対のばね片の間に差し込まれたプラグを挟持する。各電線差込穴24a~24xにおける奥行方向の奥側には、スプリング金具32が設けられており、各スプリング金具32は中間ベース46に取付けられている。スプリング金具32は、奥行方向及び幅方向と略平行な押付面33と、この押付面33に対して付勢された板ばね34とを備え、これら押付面33と板ばね34との間に差し込まれたリード線を挟持する。刃受けばね31及びスプリング金具32よりも奥行方向の奥側には、これらを電気的に接続する中継導電板35が設けられている。中継導電板35は、コイル端子用に二系統あり、コモン端子用、a接点端子用、及びb接点端子用に、夫々、四系統ある。 FIG. 2 is a perspective view of the connection terminal block partially showing the inside.
Since the primary
Inside the
電線差込穴24に差し込まれるリード線16(電線)には、フェルール端子17が圧着されている。ここでは、図1の電線差込穴24xに差し込まれたフェルール端子17を示す。フェルール端子17は、より線のバラケを防止し、電気接続の品質を安定させるための棒形圧着端子である。フェルール端子17は、絶縁されたカラー部18と、端子部19と、を備える。カラー部18の先端側には、先端に向かうほど小径となるテーパ面18aが形成されており、端子部19はカラー部18の直径よりも細い。
板ばね34は、ハウジング15の電線差込穴24にリード線16が差し込まれると、ハウジング15の内部で端子部19と係合し、引き抜き方向の変位を抑制する。また、工具差込穴25に工具(図示省略)が差し込まれると、ハウジング15の内部で端子部19との係合が解除される。 Theferrule terminal 17 is crimped to the lead wire 16 (electric wire) inserted into the electric wire insertion hole 24. Here, the ferrule terminal 17 inserted into the wire insertion hole 24x of FIG. 1 is shown. The ferrule terminal 17 is a rod-type crimp terminal for preventing wire breakdown and stabilizing the quality of the electrical connection. The ferrule terminal 17 includes an insulated collar portion 18 and a terminal portion 19. A tapered surface 18 a having a smaller diameter toward the tip is formed on the tip end side of the collar 18, and the terminal 19 is thinner than the diameter of the collar 18.
When thelead wire 16 is inserted into the wire insertion hole 24 of the housing 15, the leaf spring 34 engages with the terminal portion 19 inside the housing 15 to suppress the displacement in the pulling direction. Further, when a tool (not shown) is inserted into the tool insertion hole 25, the engagement with the terminal 19 is released inside the housing 15.
板ばね34は、ハウジング15の電線差込穴24にリード線16が差し込まれると、ハウジング15の内部で端子部19と係合し、引き抜き方向の変位を抑制する。また、工具差込穴25に工具(図示省略)が差し込まれると、ハウジング15の内部で端子部19との係合が解除される。 The
When the
次に、電線差込穴24の構造について説明する。
二次側端子部14に形成された電線差込穴24は、何れも同一の構造であるが、ここでは下段に形成された電線差込穴24を例に説明する。
図3は、フェルール端子を差し込む前の状態を示す断面図である。
電線差込穴24は、ハウジング15の内部へと向かって順に、大径部43と、当接部44と、小径部45と、を備える。大径部43の直径は、カラー部18よりも僅かに大きい寸法である。当接部44は、奥行方向の奥側に向かうほど小径となるテーパ面である。奥行方向に対する当接部44のテーパ角度は、奥行方向に対するテーパ面18aの角度よりも大きい。小径部45の直径は、カラー部18の直径よりも小さく、且つ端子部19の直径よりも大きな寸法である。 Next, the structure of thewire insertion hole 24 will be described.
The wire insertion holes 24 formed in the secondaryside terminal portion 14 have the same structure, but here, the wire insertion hole 24 formed in the lower part will be described as an example.
FIG. 3 is a cross-sectional view showing a state before inserting the ferrule terminal.
Thewire insertion hole 24 includes a large diameter portion 43, an abutting portion 44, and a small diameter portion 45 in order toward the inside of the housing 15. The diameter of the large diameter portion 43 is slightly larger than the collar portion 18. The contact portion 44 is a tapered surface whose diameter decreases toward the back in the depth direction. The taper angle of the contact portion 44 with respect to the depth direction is larger than the angle of the tapered surface 18 a with respect to the depth direction. The diameter of the small diameter portion 45 is smaller than the diameter of the collar portion 18 and larger than the diameter of the terminal portion 19.
二次側端子部14に形成された電線差込穴24は、何れも同一の構造であるが、ここでは下段に形成された電線差込穴24を例に説明する。
図3は、フェルール端子を差し込む前の状態を示す断面図である。
電線差込穴24は、ハウジング15の内部へと向かって順に、大径部43と、当接部44と、小径部45と、を備える。大径部43の直径は、カラー部18よりも僅かに大きい寸法である。当接部44は、奥行方向の奥側に向かうほど小径となるテーパ面である。奥行方向に対する当接部44のテーパ角度は、奥行方向に対するテーパ面18aの角度よりも大きい。小径部45の直径は、カラー部18の直径よりも小さく、且つ端子部19の直径よりも大きな寸法である。 Next, the structure of the
The wire insertion holes 24 formed in the secondary
FIG. 3 is a cross-sectional view showing a state before inserting the ferrule terminal.
The
板ばね34は、例えばステンレスによって形成されており、板厚は0.5mm程度で均一である。板ばね34は、自由端側区間51と、固定端側区間52と、第一の曲げ区間53と、第二の曲げ区間54と、工具接触区間55と、を備える。ハウジング15の内部で端子部19が通る位置を端子進路56(電線進路)とする。
自由端側区間51は、先端が差し込み方向の奥側及び端子進路56に向かって直線状に突出し、板面が端子進路56と交差するように配置され、且つ押付面33に向かって付勢された区間である。フェルール端子17が差し込まれていない状態において、自由端側区間51の先端51aは、押付面33に当接している。
固定端側区間52は、中間ベース46に固定され、端子進路56と平行に延びる直線状の区間である。 Theplate spring 34 is made of, for example, stainless steel, and the plate thickness is about 0.5 mm and uniform. The leaf spring 34 includes a free end section 51, a fixed end section 52, a first bending section 53, a second bending section 54, and a tool contact section 55. A position through which the terminal portion 19 passes inside the housing 15 is referred to as a terminal path 56 (electric wire path).
The freeend side section 51 is disposed so that the tip end projects linearly toward the back side in the insertion direction and the terminal track 56, the plate surface is intersected with the terminal track 56, and is biased toward the pressing surface 33. Section. In the state where the ferrule terminal 17 is not inserted, the tip end 51 a of the free end side section 51 is in contact with the pressing surface 33.
The fixedend side section 52 is a straight section fixed to the intermediate base 46 and extending in parallel with the terminal track 56.
自由端側区間51は、先端が差し込み方向の奥側及び端子進路56に向かって直線状に突出し、板面が端子進路56と交差するように配置され、且つ押付面33に向かって付勢された区間である。フェルール端子17が差し込まれていない状態において、自由端側区間51の先端51aは、押付面33に当接している。
固定端側区間52は、中間ベース46に固定され、端子進路56と平行に延びる直線状の区間である。 The
The free
The fixed
第一の曲げ区間53は、自由端側区間51と固定端側区間52との間に介在し、差し込み方向の手前側から見て凸となる側に湾曲させた区間である。曲率半径が小さ過ぎると、塑性変形しやすくなり、さらに弾性力が弱くなるため、曲率半径は板厚の2倍以上に設定されており、好ましくは3倍以上である。したがって、ここでは1.5mm以上の曲率半径とすることが好ましい。
第二の曲げ区間54は、自由端側区間51と第一の曲げ区間53との間に介在し、差し込み方向の手前側、又は端子進路56から見て凹となる側に曲げられた区間である。
工具接触区間55は、第一の曲げ区間53と第二の曲げ区間54との間に介在し、工具が差し込まれたときに、工具の外周面によって端子進路56に対して板ばね34の固定端側へと押される直線状の区間である。 Thefirst bending section 53 is a section which is interposed between the free end side section 51 and the fixed end side section 52 and is curved to be convex as viewed from the front side in the insertion direction. If the radius of curvature is too small, plastic deformation is likely to occur and the elastic force is further reduced. Therefore, the radius of curvature is set to be twice or more, preferably three times or more, of the plate thickness. Therefore, it is preferable to set it as the curvature radius of 1.5 mm or more here.
Thesecond bending section 54 is interposed between the free end section 51 and the first bending section 53, and is a section bent on the front side in the insertion direction or on the concave side as viewed from the terminal path 56. is there.
Thetool contact section 55 is interposed between the first bending section 53 and the second bending section 54, and the leaf spring 34 is fixed to the terminal path 56 by the outer peripheral surface of the tool when the tool is inserted. It is a linear section pushed to the end side.
第二の曲げ区間54は、自由端側区間51と第一の曲げ区間53との間に介在し、差し込み方向の手前側、又は端子進路56から見て凹となる側に曲げられた区間である。
工具接触区間55は、第一の曲げ区間53と第二の曲げ区間54との間に介在し、工具が差し込まれたときに、工具の外周面によって端子進路56に対して板ばね34の固定端側へと押される直線状の区間である。 The
The
The
板ばね34の動作について説明する。
図4は、端子部が板ばねの自由端側区間に当接した状態の断面図である。
電線差込穴24にフェルール端子17を差し込んでゆくと、まず端子部19が小径部45を通過し、端子部19の先端19aが、板ばね34における自由端側区間51の板面に当接する。
この状態からフェルール端子17を押し込んでゆくと、端子部19の先端19aが板ばね34における自由端側区間51の板面を、奥行方向の奥側へと押してゆく。このとき、自由端側区間51から工具接触区間55までの範囲が、第一の曲げ区間53の曲率中心を支点にして回動し、固定端側区間52に対して工具接触区間55の開き度合を狭める、つまり閉じる方向に板ばね34を弾性変形させてゆく。 The operation of theplate spring 34 will be described.
FIG. 4 is a cross-sectional view of the state in which the terminal portion is in contact with the free end section of the plate spring.
When theferrule terminal 17 is inserted into the wire insertion hole 24, first, the terminal portion 19 passes through the small diameter portion 45, and the tip 19a of the terminal portion 19 abuts on the plate surface of the free end section 51 of the plate spring 34. .
When theferrule terminal 17 is pushed in from this state, the tip 19a of the terminal portion 19 pushes the plate surface of the free end section 51 of the plate spring 34 to the back side in the depth direction. At this time, the range from the free end side section 51 to the tool contact section 55 rotates around the curvature center of the first bending section 53 as a fulcrum, and the degree of opening of the tool contact section 55 with respect to the fixed end side section 52 Of the leaf spring 34 in the closing direction.
図4は、端子部が板ばねの自由端側区間に当接した状態の断面図である。
電線差込穴24にフェルール端子17を差し込んでゆくと、まず端子部19が小径部45を通過し、端子部19の先端19aが、板ばね34における自由端側区間51の板面に当接する。
この状態からフェルール端子17を押し込んでゆくと、端子部19の先端19aが板ばね34における自由端側区間51の板面を、奥行方向の奥側へと押してゆく。このとき、自由端側区間51から工具接触区間55までの範囲が、第一の曲げ区間53の曲率中心を支点にして回動し、固定端側区間52に対して工具接触区間55の開き度合を狭める、つまり閉じる方向に板ばね34を弾性変形させてゆく。 The operation of the
FIG. 4 is a cross-sectional view of the state in which the terminal portion is in contact with the free end section of the plate spring.
When the
When the
図5は、端子部の先端が自由端側区間の先端に達した状態の断面図である。
フェルール端子17をさらに押し込んでゆくと、端子部19の先端19aが自由端側区間51の先端51aに達する。
フェルール端子17をさらに押し込み、端子部19の先端19aが自由端側区間51の先端51aを越えると、端子部19は自由端側区間51の先端51aと押付面33との間に割り込むように進入する。このとき、板ばね34の弾性力により、自由端側区間51の先端51aが端子部19を押付面33に押し付ける係合状態へと移行する。 FIG. 5 is a cross-sectional view of the state in which the tip of the terminal portion has reached the tip of the free end section.
When theferrule terminal 17 is further pushed in, the tip 19 a of the terminal portion 19 reaches the tip 51 a of the free end section 51.
When theferrule terminal 17 is further pushed in and the tip 19a of the terminal portion 19 exceeds the tip 51a of the free end section 51, the terminal section 19 enters so as to cut between the tip 51a of the free end section 51 and the pressing surface 33 Do. At this time, due to the elastic force of the plate spring 34, the distal end 51 a of the free end side section 51 shifts to an engaged state in which the terminal portion 19 is pressed against the pressing surface 33.
フェルール端子17をさらに押し込んでゆくと、端子部19の先端19aが自由端側区間51の先端51aに達する。
フェルール端子17をさらに押し込み、端子部19の先端19aが自由端側区間51の先端51aを越えると、端子部19は自由端側区間51の先端51aと押付面33との間に割り込むように進入する。このとき、板ばね34の弾性力により、自由端側区間51の先端51aが端子部19を押付面33に押し付ける係合状態へと移行する。 FIG. 5 is a cross-sectional view of the state in which the tip of the terminal portion has reached the tip of the free end section.
When the
When the
自由端側区間51は奥行方向の奥側へ向かって突出しているため、この係合状態では、端子部19の差し込み方向への変位が順方向となり許容される。一方、引き抜き方向への変位は、自由端側区間51を逆撫でる逆方向となるため、自由端側区間51の先端51aが端子部19へ引っ掛かり、引き抜き方向の変位が抑制される。したがって、フェルール端子17の緩みや抜け落ちを抑制できる。このように、自由端側区間51の先端51aと押付面33とによって端子部19が挟持されることで、端子部19を保持した拘束状態となる。なお、端子部19の幅寸法は1.5mm程度であり、自由端側区間51の先端51aと押付面33との間には、端子部19の幅寸法だけ隙間が空くようになる。
ここでは、便宜上、フェルール端子17に傾きがない状態を描いているが、実際には端子部19が板ばね34によって押付面33の側に押圧されることで、フェルール端子17が奥行方向に対して傾いた状態となる。したがって、フェルール端子17を差し込んだときに、僅かな傾きを積極的に許容するために、大径部43の直径、当接部44のテーパ角度、小径部45の直径等が設定されている。 Since the freeend side section 51 protrudes toward the back side in the depth direction, in this engaged state, the displacement of the terminal portion 19 in the insertion direction becomes the forward direction and is allowed. On the other hand, since the displacement in the pullout direction is the reverse direction in which the free end side section 51 is reversed, the tip 51a of the free end side section 51 is caught on the terminal portion 19, and the displacement in the pullout direction is suppressed. Therefore, loosening or falling off of the ferrule terminal 17 can be suppressed. As described above, the terminal portion 19 is held between the end 51 a of the free end side section 51 and the pressing surface 33, whereby the terminal 19 is held in a restraining state. The width dimension of the terminal portion 19 is about 1.5 mm, and the gap between the front end 51a of the free end side section 51 and the pressing surface 33 is equal to the width dimension of the terminal portion 19.
Here, for the sake of convenience, theferrule terminal 17 is depicted in a non-inclined state, but the terminal 19 is actually pressed by the plate spring 34 toward the pressing surface 33, whereby the ferrule terminal 17 is in the depth direction. It will be in an inclined state. Therefore, when the ferrule terminal 17 is inserted, the diameter of the large diameter portion 43, the taper angle of the contact portion 44, the diameter of the small diameter portion 45, and the like are set to positively allow slight inclination.
ここでは、便宜上、フェルール端子17に傾きがない状態を描いているが、実際には端子部19が板ばね34によって押付面33の側に押圧されることで、フェルール端子17が奥行方向に対して傾いた状態となる。したがって、フェルール端子17を差し込んだときに、僅かな傾きを積極的に許容するために、大径部43の直径、当接部44のテーパ角度、小径部45の直径等が設定されている。 Since the free
Here, for the sake of convenience, the
図6は、フェルール端子の差し込みが完了した状態の断面図である。
フェルール端子17をさらに押し込んでゆき、カラー部18におけるテーパ面18aの先端側が、電線差込穴24の当接部44に当接すると、それ以上の差し込みが阻止され停止する。このとき、端子部19の先端19aは、ハウジング15の内部における底面47に対して隙間があくように設定されている。ここでは、カラー部18の長さが6.0mm程度、端子部19の長さは8.0mm程度であり、全長14.0mm程度のものを使用している。 FIG. 6 is a cross-sectional view of a state in which insertion of the ferrule terminal is completed.
When theferrule terminal 17 is further pushed in and the tip end side of the tapered surface 18a of the collar portion 18 abuts on the contact portion 44 of the wire insertion hole 24, further insertion is blocked and stopped. At this time, the tip end 19 a of the terminal portion 19 is set to have a gap with respect to the bottom surface 47 in the housing 15. Here, the length of the collar portion 18 is about 6.0 mm, the length of the terminal portion 19 is about 8.0 mm, and the overall length is about 14.0 mm.
フェルール端子17をさらに押し込んでゆき、カラー部18におけるテーパ面18aの先端側が、電線差込穴24の当接部44に当接すると、それ以上の差し込みが阻止され停止する。このとき、端子部19の先端19aは、ハウジング15の内部における底面47に対して隙間があくように設定されている。ここでは、カラー部18の長さが6.0mm程度、端子部19の長さは8.0mm程度であり、全長14.0mm程度のものを使用している。 FIG. 6 is a cross-sectional view of a state in which insertion of the ferrule terminal is completed.
When the
図7は、工具を差し込んだ状態の断面図である。
板ばね34が端子部19と係合している場合、奥行方向の手前側から見て、工具差込穴25は、自由端側区間51における縦方向の他端側から、第一の曲げ区間53における縦方向の他端側に至る領域と重なる位置に配置されている。工具差込穴25は、奥行方向の奥側に向かうほど端子部19へと接近するように、奥行方向に対して10度ほど傾斜して形成されている。板ばね34が端子部19と係合している場合、工具接触区間55は工具差込穴25の軸線と略平行に延びている。工具61には、例えばマイナスドライバが使用される。 FIG. 7 is a cross-sectional view of a state in which the tool is inserted.
When theleaf spring 34 is engaged with the terminal portion 19, the tool insertion hole 25 is a first bending section from the other end side in the longitudinal direction in the free end side section 51 when viewed from the near side in the depth direction It is disposed at a position overlapping with the area extending to the other end side in the longitudinal direction 53. The tool insertion hole 25 is formed to be inclined by about 10 degrees with respect to the depth direction so as to approach the terminal portion 19 as it goes to the far side in the depth direction. When the leaf spring 34 is engaged with the terminal portion 19, the tool contact section 55 extends substantially parallel to the axis of the tool insertion hole 25. For the tool 61, for example, a minus driver is used.
板ばね34が端子部19と係合している場合、奥行方向の手前側から見て、工具差込穴25は、自由端側区間51における縦方向の他端側から、第一の曲げ区間53における縦方向の他端側に至る領域と重なる位置に配置されている。工具差込穴25は、奥行方向の奥側に向かうほど端子部19へと接近するように、奥行方向に対して10度ほど傾斜して形成されている。板ばね34が端子部19と係合している場合、工具接触区間55は工具差込穴25の軸線と略平行に延びている。工具61には、例えばマイナスドライバが使用される。 FIG. 7 is a cross-sectional view of a state in which the tool is inserted.
When the
工具61を差し込むと、第一の曲げ区間53における縦方向の一端側から工具接触区間55に至る範囲に、工具61の外周面が滑りながら接触し、工具接触区間55を縦方向の一端側へと押しやる。あるいは、自由端側区間51における縦方向の他端側から第二の曲げ区間54に至る範囲に、工具61の先端が当接し、自由端側区間51を押し下げる。このように、工具接触区間55を縦方向の一端側へ押しやるか、自由端側区間51を押し下げることにより、固定端側区間52に対して工具接触区間55の開き度合を狭める、つまり閉じる方向に板ばね34を弾性変形させる。これにより、自由端側区間51の先端51aと端子部19との係合状態が解除され、端子部19は板ばね34による拘束から解放されることになり、フェルール端子17の引き抜きが可能となる。
When the tool 61 is inserted, the outer peripheral surface of the tool 61 slides in a range from the one end side in the longitudinal direction in the first bending section 53 to the tool contact section 55 while sliding, and the tool contact section 55 moves to the one end side in the longitudinal direction And push. Alternatively, the tip end of the tool 61 abuts in a range from the other end side in the longitudinal direction in the free end side section 51 to the second bending section 54, and the free end side section 51 is pushed down. Thus, the degree of opening of the tool contact section 55 with respect to the fixed end section 52 is narrowed, that is, in the closing direction, by pushing the tool contact section 55 toward one end in the vertical direction or pushing down the free end section 51. The leaf spring 34 is elastically deformed. As a result, the engagement between the end 51a of the free end section 51 and the terminal 19 is released, and the terminal 19 is released from being restrained by the plate spring 34, and the ferrule terminal 17 can be pulled out. .
次に、工具61及び工具差込穴25について説明する。
図8は、工具を差し込むときの様子を示した図(平行)であり、工具の先端を工具差込穴の案内面に対して、平行となるように挿入した場合を示している。
工具61は、前述したようにマイナスドライバである。したがって、先端側は、背中合わせとなる二つの端面62が先端に向かうほど接近することで厚みが小さくなるように形成されており、刃先が一文字状となる。二つの端面62は線形テーパである。先端側の幅は一定であり、軸の直径と同一である。
工具差込穴25は、奥行方向の手前側から見て略矩形であり、互いが板ばね34の幅方向と平行な状態で対向し、奥側に向かうほど離隔距離が狭くなる一対の案内面71、72を備える。 Next, thetool 61 and the tool insertion hole 25 will be described.
FIG. 8 is a diagram (parallel) showing how the tool is inserted, and shows the case where the tip of the tool is inserted parallel to the guiding surface of the tool insertion hole.
Thetool 61 is a minus driver as described above. Therefore, the tip end side is formed so that the thickness becomes smaller as the two end faces 62 which are back-to-back approach each other toward the tip, and the cutting edge has a single-letter shape. The two end faces 62 are linear tapers. The width at the tip end is constant and equal to the diameter of the shaft.
The tool insertion holes 25 are substantially rectangular when viewed from the near side in the depth direction, and face each other in parallel with the width direction of theplate spring 34, and the distance between them narrows toward the far side 71, 72 are provided.
図8は、工具を差し込むときの様子を示した図(平行)であり、工具の先端を工具差込穴の案内面に対して、平行となるように挿入した場合を示している。
工具61は、前述したようにマイナスドライバである。したがって、先端側は、背中合わせとなる二つの端面62が先端に向かうほど接近することで厚みが小さくなるように形成されており、刃先が一文字状となる。二つの端面62は線形テーパである。先端側の幅は一定であり、軸の直径と同一である。
工具差込穴25は、奥行方向の手前側から見て略矩形であり、互いが板ばね34の幅方向と平行な状態で対向し、奥側に向かうほど離隔距離が狭くなる一対の案内面71、72を備える。 Next, the
FIG. 8 is a diagram (parallel) showing how the tool is inserted, and shows the case where the tip of the tool is inserted parallel to the guiding surface of the tool insertion hole.
The
The tool insertion holes 25 are substantially rectangular when viewed from the near side in the depth direction, and face each other in parallel with the width direction of the
電線差込穴24に近い側を案内面71とし、電線差込穴24から遠い側を案内面72とする。案内面71、72同士がなす角度は、工具61における端面62のテーパ角度と同一である。案内面71、72の双方は、奥行方向の手前側になるほどフェルール端子17から遠ざかる側に傾斜している。
図中の(a)は差し込み前の状態を示し、(b)及び(c)は差し込み途中の状態を示し、(d)は差し込み後の状態を示す。案内面71、72は、工具61が係合を解除する位置へ到達するまでに、端面62の各々に接触すると共に、少なくとも一方が端面62に対して面接触する又は幅方向に沿って線接触するように設定されている。図中(b)において、工具61の係合解除位置を二点鎖線で示す。 The side closer to thewire insertion hole 24 is referred to as a guide surface 71, and the side farther from the wire insertion hole 24 is referred to as a guide surface 72. The angle between the guide surfaces 71 and 72 is the same as the taper angle of the end face 62 of the tool 61. Both of the guide surfaces 71 and 72 are inclined to the side away from the ferrule terminal 17 toward the front side in the depth direction.
In the figure, (a) shows the state before insertion, (b) and (c) show the state in the middle of insertion, and (d) shows the state after insertion. The guide surfaces 71, 72 contact each of the end surfaces 62 and at least one is in surface contact with theend surface 62 or a line contact along the width direction until the tool 61 reaches a position where the engagement is released. It is set to In (b) in the figure, the engagement release position of the tool 61 is indicated by a two-dot chain line.
図中の(a)は差し込み前の状態を示し、(b)及び(c)は差し込み途中の状態を示し、(d)は差し込み後の状態を示す。案内面71、72は、工具61が係合を解除する位置へ到達するまでに、端面62の各々に接触すると共に、少なくとも一方が端面62に対して面接触する又は幅方向に沿って線接触するように設定されている。図中(b)において、工具61の係合解除位置を二点鎖線で示す。 The side closer to the
In the figure, (a) shows the state before insertion, (b) and (c) show the state in the middle of insertion, and (d) shows the state after insertion. The guide surfaces 71, 72 contact each of the end surfaces 62 and at least one is in surface contact with the
したがって、工具61のテーパ角度、刃先の幅寸法、端面62の長さ、さらに板ばね34の位置等を考慮し、案内面71、72の離隔距離、案内面71、72同士がなす角度等が決定される。ここでは、端面62の夫々が案内面71、72に対向し、略平行になるように工具61を差し込んでいるので、差し込み途中では端面62が案内面71、72の何れにも接触することがない。しかし、係合を解除可能な位置まで差し込まれると、一方の端面62が案内面71に面接触し、他方の端面62の根本側が案内面72に線接触する。
案内面71、72の最も広い離隔距離は、工具61における刃先の幅寸法と同等であるか、それ以下に設定している。 Therefore, in consideration of the taper angle of thetool 61, the width of the cutting edge, the length of the end face 62, and the position of the plate spring 34, the distance between the guide surfaces 71 and 72, the angle between the guide surfaces 71 and 72, etc. It is determined. Here, since the tool 61 is inserted such that each of the end surfaces 62 faces the guide surfaces 71 and 72 and is substantially parallel, the end surface 62 may contact any of the guide surfaces 71 and 72 during insertion. Absent. However, when the engagement is inserted to a position where it can be released, one end face 62 is in surface contact with the guide surface 71 and the base side of the other end face 62 is in line contact with the guide surface 72.
The widest separation distance between the guide surfaces 71 and 72 is set to be equal to or less than the width of the cutting edge of thetool 61.
案内面71、72の最も広い離隔距離は、工具61における刃先の幅寸法と同等であるか、それ以下に設定している。 Therefore, in consideration of the taper angle of the
The widest separation distance between the guide surfaces 71 and 72 is set to be equal to or less than the width of the cutting edge of the
《作用》
次に実施形態の主要な作用について説明する。
マイナスドライバは刃先が一文字状であるため、工具差込穴25に差し込むときの軸周りの角度によっては、板ばね34に対して刃先の全体ではなく端部だけが接触し、板ばね34に過剰な力が加わる可能性がある。板ばね34に過剰な力が加わることを抑制するには、板ばね34に対する工具61の当たり方を、点接触ではなく、線接触にする必要がある。
そこで、工具61の軸周りの角度を案内できるように、工具差込穴25の配置、寸法、形状を設定している。すなわち、工具61を差し込んだときに、案内面71、72は、工具61が係合を解除する位置へ到達するまでに、端面62の各々に接触すると共に、少なくとも一方が端面62に対して面接触する又は幅方向に沿って線接触するように設定されている。 << Operation >>
Next, main functions of the embodiment will be described.
Because the blade tip of the flathead screwdriver has a single-letter shape, depending on the angle around the axis when inserting into thetool insertion hole 25, only the end of the blade tip contacts not the entire blade tip 34, and the leaf spring 34 is excessive Power may be added. In order to suppress the application of an excessive force to the leaf spring 34, the contact of the tool 61 with the leaf spring 34 needs to be line contact, not point contact.
Therefore, the arrangement, size, and shape of thetool insertion hole 25 are set so that the angle around the axis of the tool 61 can be guided. That is, when the tool 61 is inserted, the guide surfaces 71, 72 contact each of the end faces 62 until the tool 61 reaches a position where the tool 61 is disengaged, and at least one of them faces the end face 62. It is set to contact or line contact along the width direction.
次に実施形態の主要な作用について説明する。
マイナスドライバは刃先が一文字状であるため、工具差込穴25に差し込むときの軸周りの角度によっては、板ばね34に対して刃先の全体ではなく端部だけが接触し、板ばね34に過剰な力が加わる可能性がある。板ばね34に過剰な力が加わることを抑制するには、板ばね34に対する工具61の当たり方を、点接触ではなく、線接触にする必要がある。
そこで、工具61の軸周りの角度を案内できるように、工具差込穴25の配置、寸法、形状を設定している。すなわち、工具61を差し込んだときに、案内面71、72は、工具61が係合を解除する位置へ到達するまでに、端面62の各々に接触すると共に、少なくとも一方が端面62に対して面接触する又は幅方向に沿って線接触するように設定されている。 << Operation >>
Next, main functions of the embodiment will be described.
Because the blade tip of the flathead screwdriver has a single-letter shape, depending on the angle around the axis when inserting into the
Therefore, the arrangement, size, and shape of the
したがって、工具61が差し込まれると、案内面71、72に沿って工具61の軸周りの角度が案内され、係合を解除する位置へ到達したときには、工具61の端面62が工具差込穴25の案内面71、72とが面接触又は線接触する。これにより、工具61の先端のうち、幅方向の全体が板ばね34に接触するようになるので、板ばね34に過剰な力が加わることを抑制できる。したがって、板ばね34の板面を傷付けたり、塑性変形を生じさせたりしてしまうことを抑制できる。
案内面71、72同士がなす角度は、工具61における端面62のテーパ角度と同一である。これにより、工具61が係合を解除する位置まで差し込まれたときに、工具61が一対の案内面71、72にぴったり嵌り合い、工具61のがたつきを抑制することができる。このとき、作業者が工具61から手を放しても、工具61が倒れたり工具差込穴25から抜け落ちたりすることもない。 Therefore, when thetool 61 is inserted, the angle around the axis of the tool 61 is guided along the guide surfaces 71 and 72, and the end surface 62 of the tool 61 reaches the tool insertion hole 25 when reaching the position for disengaging. Surface contact or line contact with the guide surfaces 71, 72 of the As a result, the whole of the tip of the tool 61 in the width direction comes into contact with the plate spring 34, so that application of an excessive force to the plate spring 34 can be suppressed. Therefore, damage to the plate surface of the plate spring 34 or plastic deformation can be suppressed.
The angle between the guide surfaces 71 and 72 is the same as the taper angle of theend face 62 of the tool 61. As a result, when the tool 61 is inserted to a position where the engagement is released, the tool 61 can be fitted tightly on the pair of guide surfaces 71, 72, and rattling of the tool 61 can be suppressed. At this time, even if the operator releases the tool 61, the tool 61 does not fall or fall out of the tool insertion hole 25.
案内面71、72同士がなす角度は、工具61における端面62のテーパ角度と同一である。これにより、工具61が係合を解除する位置まで差し込まれたときに、工具61が一対の案内面71、72にぴったり嵌り合い、工具61のがたつきを抑制することができる。このとき、作業者が工具61から手を放しても、工具61が倒れたり工具差込穴25から抜け落ちたりすることもない。 Therefore, when the
The angle between the guide surfaces 71 and 72 is the same as the taper angle of the
図9は、工具を差し込むときの様子を示した図(非平行)であり、工具の先端を工具差込穴の案内面に対して、非平行となるように挿入した場合を示している。
図中の(a)は差し込み前の状態を示し、(b)及び(c)は差し込み途中の状態を示し、(d)は差し込み後の状態を示す。ここでは、端面62の夫々が、案内面71、72と非平行になるように工具61を差し込んでいるので、差し込み途中で端面62が案内面71、72に接触し、奥に差し込むほど工具61に捩じる力が作用し、自然と軸周りの角度変化が促される。すなわち、工具61の差し込みが開始された時点で、端面62の夫々が案内面71、72と非平行であるとしても、工具61の差し込みが進むほど、端面62の夫々が案内面71、72に対向する向きへと軸周りの角度が変化するように案内され、矯正される。 FIG. 9 is a view (non-parallel) showing how the tool is inserted, and shows the case where the tip of the tool is inserted non-parallel to the guide surface of the tool insertion hole.
In the figure, (a) shows the state before insertion, (b) and (c) show the state in the middle of insertion, and (d) shows the state after insertion. Here, since thetool 61 is inserted so that each of the end surfaces 62 is not parallel to the guide surfaces 71 and 72, the end surface 62 contacts the guide surfaces 71 and 72 in the middle of insertion, and the tools 61 are inserted as they are inserted deeper. A twisting force acts on the surface, which naturally promotes angular change around the axis. That is, even when each of the end surfaces 62 is not parallel to the guide surfaces 71 and 72 when the insertion of the tool 61 is started, each of the end surfaces 62 moves to the guide surfaces 71 and 72 as the insertion of the tool 61 progresses. It is guided and corrected so that the angle around the axis changes in the opposite direction.
図中の(a)は差し込み前の状態を示し、(b)及び(c)は差し込み途中の状態を示し、(d)は差し込み後の状態を示す。ここでは、端面62の夫々が、案内面71、72と非平行になるように工具61を差し込んでいるので、差し込み途中で端面62が案内面71、72に接触し、奥に差し込むほど工具61に捩じる力が作用し、自然と軸周りの角度変化が促される。すなわち、工具61の差し込みが開始された時点で、端面62の夫々が案内面71、72と非平行であるとしても、工具61の差し込みが進むほど、端面62の夫々が案内面71、72に対向する向きへと軸周りの角度が変化するように案内され、矯正される。 FIG. 9 is a view (non-parallel) showing how the tool is inserted, and shows the case where the tip of the tool is inserted non-parallel to the guide surface of the tool insertion hole.
In the figure, (a) shows the state before insertion, (b) and (c) show the state in the middle of insertion, and (d) shows the state after insertion. Here, since the
そして、係合を解除可能な位置まで差し込まれると、一方の端面62が案内面71に面接触し、他方の端面62の根本側が案内面72に線接触する。このとき、工具61の先端のうち、幅方向の全体が板ばね34に接触するようになるので、板ばね34に過剰な力が加わることを抑制できる。
また、案内面71、72の最も広い離隔距離は、工具61における刃先の幅寸法と同等であるか、それ以下に設定している。したがって、案内面71、72に対して、端面62の幅方向が略直交するような向きでは、工具61の差し込みを阻止できる。これにより、工具61の差し込みには、軸周りの角度に許容範囲があることを作業者に知覚させ、差し込み過程における軸周りの角度変化をいっそう容易に促すことができる。 And if it inserts in the position which can release an engagement, oneend surface 62 will carry out surface contact to the guide surface 71, and the root side of the other end surface 62 will carry out line contact to the guide surface 72. At this time, the whole of the tip of the tool 61 in the width direction comes into contact with the plate spring 34, so that application of an excessive force to the plate spring 34 can be suppressed.
Further, the widest separation distance between the guide surfaces 71 and 72 is set to be equal to or less than the width dimension of the cutting edge of thetool 61. Therefore, in the direction in which the width direction of the end surface 62 is substantially orthogonal to the guide surfaces 71 and 72, insertion of the tool 61 can be prevented. This allows the operator to perceive that the insertion of the tool 61 has an acceptable range of angles around the axis, and can more easily promote the change in angle around the axis during the insertion process.
また、案内面71、72の最も広い離隔距離は、工具61における刃先の幅寸法と同等であるか、それ以下に設定している。したがって、案内面71、72に対して、端面62の幅方向が略直交するような向きでは、工具61の差し込みを阻止できる。これにより、工具61の差し込みには、軸周りの角度に許容範囲があることを作業者に知覚させ、差し込み過程における軸周りの角度変化をいっそう容易に促すことができる。 And if it inserts in the position which can release an engagement, one
Further, the widest separation distance between the guide surfaces 71 and 72 is set to be equal to or less than the width dimension of the cutting edge of the
《変形例》
上記の実施形態では、案内面71、72同士がなす角度を、工具61における端面62のテーパ角度と同一にしているが、これに限定されるものではない。案内面71、72同士がなす角度を、端面62のテーパ角度よりも僅かに大きくすれば、工具61を差し込んだときに、僅かな遊びを確保することができる。
上記の実施形態では、リード線16にフェルール端子17を圧着した場合について説明したが、これに限定されるものではなく、単線であれ、より線であれ、裸線のまま使用してもよい。 << Modification >>
In the above embodiment, the angle formed between the guide surfaces 71 and 72 is the same as the taper angle of theend face 62 of the tool 61, but the invention is not limited to this. If the angle between the guide surfaces 71 and 72 is slightly larger than the taper angle of the end surface 62, a slight play can be secured when the tool 61 is inserted.
In the above embodiment, although the case where theferrule terminal 17 is crimped to the lead wire 16 has been described, the present invention is not limited to this, and a single wire, a stranded wire, or a bare wire may be used.
上記の実施形態では、案内面71、72同士がなす角度を、工具61における端面62のテーパ角度と同一にしているが、これに限定されるものではない。案内面71、72同士がなす角度を、端面62のテーパ角度よりも僅かに大きくすれば、工具61を差し込んだときに、僅かな遊びを確保することができる。
上記の実施形態では、リード線16にフェルール端子17を圧着した場合について説明したが、これに限定されるものではなく、単線であれ、より線であれ、裸線のまま使用してもよい。 << Modification >>
In the above embodiment, the angle formed between the guide surfaces 71 and 72 is the same as the taper angle of the
In the above embodiment, although the case where the
上記の実施形態では、a接点端子及びb接点端子を組み合わせたc接点のリレーについて説明したが、これに限定されるものではなく、a接点のリレーやb接点のリレーにも適用できる。また、4極の接点を有するリレーについて説明したが、これに限定されるものではなく、1極、2極、又は3極のリレーにも適用できる。さらに、リレーに限定されるものではなく、タイマーにも適用できる。
上記の実施形態では、リレーやタイマー等を外部回路に接続するためのターミナルソケットについて説明したが、これに限定されるものではない。要は、ハウジング15に差し込まれたフェルール端子17を保持可能なスプリング式の端子構造であれば、他の如何なる電気機器や付属装置にも適用可能である。 In the above embodiment, the c-contact relay in which the a-contact terminal and the b-contact terminal are combined is described. However, the present invention is not limited to this, and can be applied to the a-contact relay and the b-contact relay. Also, although the relay having the four-pole contact has been described, the present invention is not limited to this, and can be applied to a one-pole, two-pole or three-pole relay. Furthermore, the invention is not limited to relays, and can be applied to timers.
In the above embodiment, although the terminal socket for connecting a relay, a timer, etc. to an external circuit was described, it is not limited to this. The point is that any spring-type terminal structure capable of holding theferrule terminal 17 inserted into the housing 15 can be applied to any other electric devices and accessories.
上記の実施形態では、リレーやタイマー等を外部回路に接続するためのターミナルソケットについて説明したが、これに限定されるものではない。要は、ハウジング15に差し込まれたフェルール端子17を保持可能なスプリング式の端子構造であれば、他の如何なる電気機器や付属装置にも適用可能である。 In the above embodiment, the c-contact relay in which the a-contact terminal and the b-contact terminal are combined is described. However, the present invention is not limited to this, and can be applied to the a-contact relay and the b-contact relay. Also, although the relay having the four-pole contact has been described, the present invention is not limited to this, and can be applied to a one-pole, two-pole or three-pole relay. Furthermore, the invention is not limited to relays, and can be applied to timers.
In the above embodiment, although the terminal socket for connecting a relay, a timer, etc. to an external circuit was described, it is not limited to this. The point is that any spring-type terminal structure capable of holding the
以上、限られた数の実施形態を参照しながら説明したが、権利範囲はそれらに限定されるものではなく、上記の開示に基づく実施形態の改変は、当業者にとって自明のことである。
Although the foregoing has been described with reference to a limited number of embodiments, the scope of rights is not limited to them, and modifications of the embodiments based on the above disclosure are obvious to those skilled in the art.
11…接続端子台、12…一次側端子部、13…リレー端子部、14…二次側端子部、15…ハウジング、16…リード線、17…フェルール端子、18…カラー部、18a…テーパ面、19…端子部、19a…先端、21…電線差込穴、22…工具差込穴、23…プラグ差込口、24…電線差込穴、25…工具差込穴、30…角度、32…スプリング金具、33…押付面、34…板ばね、35…中継導電板、43…大径部、44…当接部、45…小径部、46…中間ベース、47…底面、51…自由端側区間、51a…先端、52…固定端側区間、53…第一の曲げ区間、54…第二の曲げ区間、55…工具接触区間、56…端子進路、61…工具、62…端面、71…案内面、72…案内面
DESCRIPTION OF SYMBOLS 11 ... Connection terminal block, 12 ... Primary side terminal part, 13 ... Relay terminal part, 14 ... Secondary side terminal part, 15 ... Housing, 16 ... Lead wire, 17 ... Ferrule terminal, 18 ... Collar part, 18a ... Taper surface , 19: terminal part, 19a: tip, 21: electric wire insertion hole, 22: tool insertion hole, 23: plug insertion port, 24: electric wire insertion hole, 25: tool insertion hole, 30: angle, 32 ... Spring fitting, 33 ... pressing surface, 34 ... leaf spring, 35 ... relay conductive plate, 43 ... large diameter part, 44 ... contact part, 45 ... small diameter part, 46 ... middle base, 47 ... bottom surface, 51 ... free end Side section, 51a: tip, 52: fixed end section, 53: first bending section, 54: second bending section, 55: tool contact section, 56: terminal path, 61: tool, 62: end face, 71 ... guide surface, 72 ... guide surface
Claims (5)
- ハウジングに形成された電線差込穴と、
前記電線差込穴と並んで前記ハウジングに形成された工具差込穴と、
前記ハウジングの内部で前記工具差込穴の奥側から前記電線差込穴の奥側へと延び、前記電線差込穴に電線が差し込まれると先端が前記電線に係合して前記電線の引き抜き方向の変位を抑制し、前記工具差込穴に工具が差し込まれると前記工具の先端に押されて前記係合が解除される板ばねと、を備え、
前記工具の先端側は、背中合わせとなる二つの端面が先端に向かうほど接近することで厚みが小さくなるように形成されており、
前記工具差込穴は、互いが前記板ばねの幅方向と平行な状態で対向し、奥側に向かうほど離隔距離が狭くなる一対の案内面を備え、
一対の前記案内面は、前記工具が前記係合を解除する位置へ到達するまでに、前記端面の各々に接触すると共に、少なくとも一方が前記端面に対して面接触する又は幅方向に沿って線接触するように設定されていることを特徴とする接続端子台。 Wire insertion holes formed in the housing,
A tool insertion hole formed in the housing along with the wire insertion hole;
The inside of the housing extends from the back side of the tool insertion hole to the back side of the wire insertion hole, and when the wire is inserted into the wire insertion hole, the tip engages with the wire and the wire is pulled out And a leaf spring which is restrained by the tip of the tool when the tool is inserted into the tool insertion hole to suppress the displacement of the direction, and the engagement is released.
The tip end side of the tool is formed such that the thickness is reduced by approaching the two end faces that are back to back toward the tip,
The tool insertion holes have a pair of guide surfaces facing each other in parallel with the width direction of the leaf spring and having a narrow separation distance toward the back side.
The pair of guide surfaces contact each of the end surfaces before reaching the position where the tool releases the engagement, and at least one is in surface contact with the end surfaces or a line along the width direction A connection terminal block characterized in that it is set to contact. - 一対の前記案内面は、前記工具の差し込みが開始された時点で、前記端面が前記案内面に対向しないとしても、前記工具の差し込みが進むほど、前記端面が前記案内面に対向する向きへと軸周りの角度が変化するように案内することを特徴とする請求項1に記載の接続端子台。 When the insertion of the tool is started, even if the end surface does not face the guide surface, the pair of guide surfaces is directed in the direction in which the end surface faces the guide surface as the insertion of the tool progresses. The connection terminal block according to claim 1, wherein the connection terminal block is guided so as to change the angle around the axis.
- 前記板ばねは、
前記ハウジングの内部で前記電線が通る位置を電線進路とし、先端が差し込み方向の奥側及び前記電線進路に向かって突出し、板面が前記電線進路と交差するように配置された直線状の自由端側区間と、
前記ハウジングに固定され、前記電線進路と平行に延びる直線状の固定端側区間と、
前記自由端側区間と前記固定端側区間との間に介在し、前記差し込み方向の手前側から見て凸となる側に曲げられた第一の曲げ区間と、を備え、
前記工具が差し込まれると、前記自由端側区間に前記工具の先端が当接し、前記自由端側区間を押し下げることにより、前記板ばねを弾性変形させ、前記自由端側区間の先端と前記電線との前記係合が解除されることを特徴とする請求項1又は2に記載の接続端子台。 The leaf spring is
A position where the electric wire passes inside the housing is a wire path, and a tip end projects toward the back side in the insertion direction and the wire path, and a linear free end is disposed so that a plate surface intersects the wire path Side section,
A straight fixed end section fixed to the housing and extending parallel to the wire path;
A first bending section interposed between the free end side section and the fixed end side section and bent to a convex side as viewed from the front side of the insertion direction;
When the tool is inserted, the tip of the tool abuts on the free end section, and the flat spring is elastically deformed by depressing the free end section, and the tip of the free end section and the electric wire The connection terminal block according to claim 1 or 2, wherein the engagement of the connector is released. - 前記板ばねは、
前記自由端側区間と前記第一の曲げ区間との間に介在し、前記差し込み方向の手前側、又は前記電線進路から見て凹となる側に曲げられた第二の曲げ区間と、
前記第一の曲げ区間と前記第二の曲げ区間との間に介在する直線状の工具接触区間と、を備え、
前記工具が差し込まれると、前記工具接触区間に一方の前記端面が接触し、前記工具接触区間を前記板ばねの固定端側へと押しやることにより、前記板ばねを弾性変形させ、前記自由端側区間の先端と前記電線との前記係合が解除されることを特徴とする請求項3に記載の接続端子台。 The leaf spring is
A second bending section which is interposed between the free end section and the first bending section and which is bent on the front side of the inserting direction or on the concave side as viewed from the wire path;
A straight tool contact section interposed between the first bending section and the second bending section;
When the tool is inserted, one of the end faces contacts the tool contact section, and the tool contact section is pushed toward the fixed end side of the leaf spring, thereby elastically deforming the leaf spring, and the free end side The connection terminal block according to claim 3, wherein the engagement between the end of the section and the electric wire is released. - 請求項1~4の何れか一項に記載の接続端子台を備えた電気機器。 An electric device comprising the connection terminal block according to any one of claims 1 to 4.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201880003416.5A CN109716591B (en) | 2018-01-15 | 2018-08-21 | Connection terminal base and electrical equipment |
JP2019512328A JP6825697B2 (en) | 2018-01-15 | 2018-08-21 | Connection terminal block, electrical equipment |
EP18847203.9A EP3537543A4 (en) | 2018-01-15 | 2018-08-21 | Connection terminal support and electric machine |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2018-004096 | 2018-01-15 | ||
JP2018004096 | 2018-01-15 |
Publications (1)
Publication Number | Publication Date |
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WO2019138602A1 true WO2019138602A1 (en) | 2019-07-18 |
Family
ID=66396950
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2018/030745 WO2019138602A1 (en) | 2018-01-15 | 2018-08-21 | Connection terminal support and electric machine |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3537543A4 (en) |
JP (1) | JP6825697B2 (en) |
WO (1) | WO2019138602A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110737221B (en) * | 2019-10-23 | 2021-08-10 | 苏州腾伟电子有限公司 | Thirty-two channel matrix switch board |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1412437A (en) * | 1972-11-17 | 1975-11-05 | Amp Inc | Electrical connectors and contacts therefor |
JPS5539809B2 (en) | 1971-10-29 | 1980-10-14 | ||
DE102005048972A1 (en) * | 2005-10-13 | 2007-04-19 | Phoenix Contact Gmbh & Co. Kg | Spring tension clamp e.g. print clamp, has current bar arranged adjacent to inner side of supporting leg of clamping spring under force of clamping leg, where spring holds bar in preset position |
DE102007022088B3 (en) * | 2007-05-11 | 2008-11-27 | Siemens Ag | Clamping cover for tension spring i.e. cage tension spring, clamp, has guide elements with guide surfaces tiltedly running transverse to center axis of lead through, and guide channels arranged in guide elements for guiding operation tool |
FR3012686A1 (en) * | 2013-10-29 | 2015-05-01 | Abb France | ELECTRICAL APPARATUS COMPRISING A SPRING CONNECTION TERMINAL |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE29818669U1 (en) * | 1998-10-13 | 1999-02-04 | Wago Verwaltungsgesellschaft Mbh, 32423 Minden | Add-on spring-loaded terminal for electrical conductors |
DE10034589C2 (en) * | 2000-07-14 | 2002-12-12 | Phoenix Contact Gmbh & Co | Terminal for electrical conductors |
JP2009170207A (en) * | 2008-01-15 | 2009-07-30 | Yamatake Corp | Terminal board |
DE202009002324U1 (en) * | 2009-02-18 | 2010-07-29 | Weidmüller Interface GmbH & Co. KG | Terminal for connecting conductor ends |
-
2018
- 2018-08-21 EP EP18847203.9A patent/EP3537543A4/en active Pending
- 2018-08-21 JP JP2019512328A patent/JP6825697B2/en active Active
- 2018-08-21 WO PCT/JP2018/030745 patent/WO2019138602A1/en unknown
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5539809B2 (en) | 1971-10-29 | 1980-10-14 | ||
GB1412437A (en) * | 1972-11-17 | 1975-11-05 | Amp Inc | Electrical connectors and contacts therefor |
DE102005048972A1 (en) * | 2005-10-13 | 2007-04-19 | Phoenix Contact Gmbh & Co. Kg | Spring tension clamp e.g. print clamp, has current bar arranged adjacent to inner side of supporting leg of clamping spring under force of clamping leg, where spring holds bar in preset position |
DE102007022088B3 (en) * | 2007-05-11 | 2008-11-27 | Siemens Ag | Clamping cover for tension spring i.e. cage tension spring, clamp, has guide elements with guide surfaces tiltedly running transverse to center axis of lead through, and guide channels arranged in guide elements for guiding operation tool |
FR3012686A1 (en) * | 2013-10-29 | 2015-05-01 | Abb France | ELECTRICAL APPARATUS COMPRISING A SPRING CONNECTION TERMINAL |
Non-Patent Citations (1)
Title |
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See also references of EP3537543A4 |
Also Published As
Publication number | Publication date |
---|---|
JP6825697B2 (en) | 2021-02-03 |
JPWO2019138602A1 (en) | 2020-01-16 |
EP3537543A1 (en) | 2019-09-11 |
EP3537543A4 (en) | 2019-10-23 |
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