JP2008016276A - Terminal fixture, and loud speaker applied with the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a terminal fixture for connecting a lead wire and wiring, which can reduce operation processes such as soldering. <P>SOLUTION: A terminal fixture 70 includes a connection 71 having a lead wire connection into which a lead wire 91 is connected, and having a wiring connection into which a wiring 90 is connected. Particularly, the lead wire connection is disposed close to the wiring connection in the connection 71. Therefore, while the lead wire 91 is made close to the wiring 90, the lead wire 91 and the wiring 90 can be respectively connected to the lead wire connection and the wiring connection, and can be soldered simultaneously. That is, once soldering allows conductive connection of the lead wires and wiring to be done. This can reduce soldering process, thereby reducing man-hour. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a structure of a terminal fitting for connecting a lead wire and a wiring.

  In general, a terminal fitting (terminal lug) for connecting a lead wire and wiring (for example, a conductive wire and a covering material covering the conductive wire; hereinafter used in the same meaning) is connected to one end of the terminal fitting. Wiring for inserting a lead wire and tying it to the terminal fitting part by inserting the terminal part of the wiring on the other end side while having a lead wire linking slit for inserting the lead wire and tying it to the terminal fitting part It has a slit for binding.

  In order to conductively connect the lead wire and wiring to the terminal fitting having such a structure, the lead wire is inserted into the lead wire linking slit and entangled with the terminal fitting portion, and the portion is soldered. At the same time, the terminal portion of the wiring is inserted into the slit for connecting the wiring, and the portion is soldered to the portion of the terminal fitting, whereby the lead wire and the wiring are conductively connected via the terminal fitting.

  In Patent Document 1, the positive electrode side connection line and the negative electrode side connection line of the speaker can be easily connected to the connection terminals with one hand, and can be quickly and surely connected, thereby reducing the cost without requiring a spring. A connection structure of speaker connection lines that can be used has been proposed.

JP 2005-135675 A

  However, in the case of the general terminal fitting described above, in order to connect the lead wire and the wiring to the terminal fitting, it is necessary to solder the lead wire and the terminal fitting portion and the wiring and the terminal fitting portion. There is a problem that the soldering work process is increased accordingly.

  Moreover, in the connection structure of the speaker connection line described in Patent Document 1, it is necessary to connect the positive side connection line and the negative side connection line (input) and a lead wire (output) (not shown) to the speaker. If there is, there will be a problem that two connection terminals are required on each of the positive electrode side and the negative electrode side, and the number of parts of the connection terminal increases accordingly.

  Examples of problems to be solved by the present invention include the above. An object of the present invention is to provide a terminal fitting for connecting a lead wire and a wiring capable of reducing a soldering work process and the like and a speaker device to which the terminal fitting is applied.

  Invention of Claim 1 is a terminal metal fitting, Comprising: It has a connection part which has a lead wire connection part to which a lead wire is connected, and a wiring connection part to which wiring is connected, In the connection part, The lead wire connecting portion and the wiring connecting portion are provided at positions close to each other.

  In one embodiment of the present invention, the terminal fitting includes a connecting portion having a lead wire connecting portion to which a lead wire is connected and a wiring connecting portion to which a wire is connected, and in the connecting portion, the lead wire The connection part and the wiring connection part are provided at positions close to each other.

  Said terminal metal fitting is provided with the connection part which has the lead wire connection part to which a lead wire is connected, and the wiring connection part to which wiring is connected. Here, the lead wire can be a wire formed of one conductor, such as a lead wire of a voice coil of a speaker device or a lead wire of an electronic component, for example. It can be made into the object comprised with the coating | covering material which coat | covers conducting wire.

  In particular, in this terminal fitting, the lead wire connecting portion and the wiring connecting portion are provided at positions close to each other in the connecting portion. As a result, in a state where the lead wire and the wiring are close to each other, both of them can be entangled with the lead wire connecting portion and the wiring connecting portion, respectively, and the soldering operation can be simultaneously performed on both of them. it can. That is, the lead wire and the wiring can be conductively connected by one soldering operation. Therefore, as compared with the case of the general terminal fitting described above, the soldering process can be reduced, and the number of man-hours can be reduced.

  In addition, since the lead wire and the wiring are in close proximity to each other, they are entangled with the lead wire connecting portion and the wiring connecting portion, respectively, so that the lead wire and the wiring are securely connected. be able to. That is, it is possible to improve the reliability of the lead connection between the lead wire and the wiring. In one preferred example of the terminal fitting described above, the terminal fitting is formed in a substantially L shape, and one end side is the connection portion, and the other end side is a mounted portion attached to the attachment portion. The connecting portion has a bifurcated shape, and has a pair of entangled portions with which the lead wire and the wiring are entangled, and the wiring connecting portion includes the pair of entangled portions and A slit that is provided between the pair of binding portions and into which the wiring is inserted, and the lead wire connecting portion is between the pair of binding portions and the pair of binding portions. And another slit provided at a position adjacent to the slit. In another preferable example of the terminal fitting, the other slit includes a first slit and a second slit, and the first slit and the second slit are formed on the connection portion. It is provided at a position connected in the width direction and on both sides of the slit.

  In another aspect of the terminal fitting, the lead wire connecting portion has a symmetric shape with respect to an imaginary straight line passing through the center in the width direction of the connecting portion. This eliminates the need for two types of terminal fittings for plus and minus use, in other words, even when the mounting shape of the terminal fitting attachment portion is different for plus and minus, in other words, one type It is possible to share the terminal metal fitting for both plus and minus simply by preparing the terminal fitting. Therefore, there is no need to prepare two connection terminals (corresponding to the terminal metal fittings of the present invention) on the positive electrode side (for positive use) and the negative electrode side (for negative use) one by one, as in the above-mentioned Patent Document 1. It can prevent that the number of parts of a metal fitting increases.

  In another aspect of the terminal fitting described above, the attachment portion includes a movement restriction slit that restricts movement of the attachment portion with respect to the attachment portion when the attachment portion is engaged with a claw portion provided in the attachment portion. And having a symmetrical shape with respect to another imaginary straight line passing through the center of the attached portion in the width direction.

  In this aspect, since the attached portion has a movement restricting slit that restricts the movement of the attached portion with respect to the attaching portion when fitted to the claw portion provided in the attaching portion, the terminal fitting is attached to the attaching portion. Even if an external force that causes the terminal fitting to be detached is applied, it is possible to prevent the terminal fitting from being detached from the mounting portion due to the interaction between the claw portion and the movement restricting slit. In addition, since the attached portion has a symmetrical shape with respect to another virtual straight line passing through the center in the width direction of the attached portion, for example, the attachment shape of the attachment portion of the terminal metal fitting for plus and minus Even if there is a difference, there is no need to prepare two types of terminal fittings for plus and minus, in other words, just by preparing one type of terminal fitting, both the plus and minus terminal fittings are prepared. It becomes possible to share it. Therefore, as compared with the case of the general terminal fitting described above, the soldering process can be reduced, and the number of man-hours can be reduced.

  In another embodiment of the present invention, the terminal fitting, the attachment portion for a speaker device, the lead wire and the wiring are provided, the terminal fitting is attached to the attachment portion, and the lead wire is The wiring is electrically connected to the lead wire connecting portion, and the wiring is electrically connected to the wiring connecting portion.

  The speaker device includes the terminal fitting, the mounting portion for the speaker device, the lead wire, and the wiring. Here, for example, the lead wire of a network electronic component such as a capacitor or the lead wire of a voice coil can be made symmetric. The wiring can be a variety of wiring connected to the lead wire. The terminal fitting is attached to the attachment portion, the lead wire is electrically connected to the lead wire connection portion by solder or the like, and the wiring is electrically connected to the wiring connection portion by solder or the like. In particular, in this speaker device, since the above-described terminal fitting is applied, the above-described various functions and effects can be obtained due to the structure of the terminal fitting.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

[Terminal bracket configuration]
First, with reference to FIG. 1, the structure of the terminal metal fitting for connecting the wiring and lead wire which concern on the Example of this invention is demonstrated. The lead wire can be a wire formed of one conductor, such as a lead wire of a voice coil of a speaker device or a lead wire of an electronic component, and the wiring is composed of a lead wire and the lead wire. And a covering material that covers the substrate.

  Fig.1 (a) is one side view which shows the structure of the terminal metal fitting 70 which concerns on the Example of this invention. FIG.1 (b) is another side view which shows the structure of the terminal metal fitting 70 seen from the arrow Y21 direction of Fig.1 (a). FIG.1 (c) is a front view which shows the structure of the terminal metal fitting 70 seen from the arrow Y20 direction of Fig.1 (a).

  The terminal fitting 70 is formed in a substantially L-shape, and has a lead wire connecting portion to which one lead wire 91 is connected at one end thereof, and a connecting portion having a wiring connecting portion to which one wiring 90 is connected. 71 and, at the other end, an attached portion 72 attached to the attachment portion 95 shown in FIG.

  The connecting portion 71 has a bifurcated shape, and has a pair of binding portions 71a and 71b to which the lead wire 91 and the wiring 90 are wound. The wiring connection portion includes a pair of binding portions 71a and 71b and a slit 71c provided between the pair of binding portions 71a and 71b and into which the wiring 90 is inserted. The slit 71c is formed in a shape corresponding to the shape of the wiring 90 having a substantially circular cross section. On the other hand, the lead wire connecting portion has a pair of binding portions 71a and 71b and another slit 71d provided between the pair of binding portions 71a and 71b and adjacent to the slit 71c. Configured. The other slit 71d further includes a first slit 71da and a second slit 71db. The lead wire connecting portion has a symmetrical shape (mirror symmetry shape) with respect to an imaginary straight line L21 passing through the center of the connecting portion 71 in the width direction. For this reason, the first slit 71da and the second slit 71db have a symmetrical shape with respect to the virtual straight line L21. In the connecting portion 71 having the above configuration, the lead wire connecting portion and the wiring connecting portion are provided at positions close to each other.

  The attached portion 72 has movement restricting slits 72a and 72b for restricting the movement of the attached portion 72 relative to the attaching portion 95 when fitted to the claw portion 95b provided in the attaching portion 95 shown in FIG. In addition, it has a symmetrical shape (mirror-symmetrical shape) with respect to another virtual straight line L20 passing through the center of the attached portion 72 in the width direction. For this reason, the movement restricting slit 72a and the movement restricting slit 72b have a symmetrical shape with respect to the other virtual straight line L20. In this example, the movement restricting slits 72a and 72b are formed in a shape in which a part of the attached portion 72 is cut out in a rectangular shape. However, the present invention is not limited to this, and in the present invention, the attached portion 72 is provided. A movement restricting opening that restricts the movement of the attached portion 72 relative to the attaching portion 95 when fitted to the claw portion 95b may be formed in the center portion of the.

  Next, a method for connecting the wiring 90 and the lead wire 91 to the terminal fitting 70 having the above-described configuration will be described.

  As can be understood by paying attention to the connection portion 71 in FIG. 1B, first, the wiring 90 is entangled with the wiring connection portion while being inserted into the slit 71c, and the lead wire 91 is connected to the first slit 71da and the first slit. The lead wire connecting portion is entangled while being inserted into one of the two slits 71db. Then, the wiring 90 entangled in the wiring connection portion and the lead wire 91 entangled in the lead wire connection portion are conductively connected via solder (part of the broken line region E30). Thereby, the wiring 90 and the lead wire 91 are electrically connected via the solder and the terminal fitting 70.

[Attaching the terminal bracket to the mounting part]
Next, with reference to FIG. 2, a method for attaching the terminal fitting 70 having the above-described configuration to the attachment portion will be described.

  FIG. 2A is a side view showing a state in which the terminal fitting 70 according to the present embodiment is attached to the attachment portion 95. FIG. 2B is a front view showing a state in which the terminal fitting 70 is attached to the attachment portion 95 when viewed from the direction of the arrow Y22 in FIG. FIG. 2C is a schematic cross-sectional view including the terminal fitting 70 and the attachment portion 95 along the cutting line X1-X2 in FIG.

  First, the configuration of the attachment portion 95 to which the terminal fitting 70 is attached will be briefly described.

  The attachment portion 95 has a role of restricting the movement of the terminal fitting 70 by fitting into the insertion hole 95a into which the attached portion 72 of the terminal fitting 70 is inserted and the movement restricting slit 72a or 72b of the terminal fitting 70. Claw portion 95b.

  In order to attach the terminal fitting 70 to the attachment portion 95 having the above-described configuration, it is performed as follows.

  As will be understood with reference to FIG. 2, first, the terminal fitting 70 is moved in the direction of the arrow Y <b> 22 where the attachment portion 95 exists, and the attached portion 72 of the terminal fitting 70 is inserted into the insertion hole 95 a of the attachment portion 95. Further, by pushing the terminal fitting 70 toward the attachment portion 95 from that state, the claw portion 95b of the attachment portion 95 is fitted into the movement restricting slit 72a or 72b of the attachment portion 72. As a result, the terminal fitting 70 is fixed (locked) to the mounting portion 95. With this structure, even if an external force is applied to the terminal fitting 70 in the direction opposite to the arrow Y22 direction in FIG. As can be seen, the nail portion 95b of the attachment portion 95 is positioned below the movement restriction slit 72a or 72b by the interaction between the claw portion 95b of the attachment portion 95 and the movement restriction slit 72a or 72b. It is possible to prevent the terminal fitting 70 from being detached from the attachment portion 95 by being caught by the portion 72.

  In addition, although the connection method of the wiring 90 and the lead wire 91 with respect to the terminal metal fitting 70 is performed by the above-mentioned method, in this invention, the connection of the wiring 90 and the lead wire 91 with respect to the terminal metal fitting 70, and the attachment part 95 of the terminal metal fitting 70 are carried out. Either order may be the order of attachment.

  The state where the terminal fitting 70 is attached to the attachment portion 95 as described above is shown in FIGS. 2 (a) to 2 (c).

  Next, a description will be given of the specific effects of the terminal fitting for connecting the wiring and the lead wire according to the embodiment of the present invention compared with the comparative example.

  First, with reference to FIG. 3, the structure of the terminal metal fitting for connecting the wiring and lead wire which concern on a comparative example is demonstrated. In addition, in a comparative example, the same code | symbol is attached | subjected about the element which is common in a present Example, The description is abbreviate | omitted or simplified.

  FIG. 3 is a perspective view illustrating a configuration of a terminal fitting for connecting wiring and lead wires according to a comparative example.

  The terminal fitting 120 according to the comparative example has a substantially L-shaped shape, and a lead wire linking slit 121a for inserting the lead wire 91 into one end side 121 thereof and entwining the terminal fitting 120 portion. Is formed on the other end side 122 of the wiring 90, and a wiring-engaging slit 122a is formed on the other end side 122 so as to be entangled with the terminal fitting 120.

  In order to conductively connect the lead wire 91 and the wiring 90 to the terminal fitting 120 having such a structure, the lead wire 91 is inserted into the lead wire linking slit 121a and the terminal fitting 120 is entangled. Then, the portion E31 is soldered, and the end portion 90a of the wiring 90 is inserted into the wiring binding slit 122a, and the portion E32 is soldered to the portion of the terminal fitting 120. As a result, the lead wire 91 and the wiring 90 can be conductively connected via the solder and the terminal fitting 120.

  However, in the case of the comparative example, in order to connect the lead wire 91 and the wiring 90 to the terminal fitting 120, the lead wire 91 and the terminal fitting 120 portion, and the wiring 90 and the terminal fitting 120 portion (broken area) There is a problem in that it is necessary to perform soldering at the locations E31 and E32), and the soldering work process increases accordingly.

  In this regard, the terminal fitting 70 according to the embodiment of the present invention includes a connecting portion 71 having a lead wire connecting portion to which the lead wire 91 is connected and a wiring connecting portion to which the wiring 90 is connected. The lead wire connecting portion and the wiring connecting portion are provided at positions close to each other.

  In a preferred example, the wiring connection portion includes a pair of binding portions 71a and 71b that are elements of the connection portion 71, and a slit 71c that is provided between the pair of binding portions 71a and 71b and into which the wiring 90 is inserted. On the other hand, the lead wire connecting portion is provided between the pair of binding portions 71a and 71b and the pair of binding portions 71a and 71b and adjacent to the slit 71c. And another slit 71d.

  As a result, in the state where the lead wire 91 and the wiring 90 are close to each other, both of them can be entangled with the lead wire connecting portion and the wiring connecting portion, respectively, and the soldering operation is simultaneously performed on both of them. be able to. That is, the lead wire 91 and the wiring 90 can be conductively connected by one soldering operation. Therefore, as compared with the comparative example, the soldering work process can be reduced, and the man-hour can be reduced.

  Further, since the lead wire 91 and the wiring 90 are in close proximity to each other, they are entangled with the lead wire connecting portion and the wiring connecting portion, respectively, so that the lead wire 91 and the wiring 90 are connected to each other. Can be performed reliably. That is, the reliability of the lead wire connection between the lead wire 91 and the wiring 90 can be improved.

  The lead wire connecting portion has a symmetric shape with respect to an imaginary straight line L21 passing through the center of the connecting portion 71 in the width direction. The attached portion 72 includes movement restricting slits 72a and 72b that restrict the movement of the attached portion 72 relative to the attaching portion 95 when fitted to the claw portion 95b provided in the attaching portion 95. The mounting portion 72 has a symmetric shape with respect to another virtual straight line L20 passing through the center in the width direction. That is, with these configurations, the terminal fitting 70 has a symmetrical shape with respect to a virtual center line passing through the center in the width direction.

  Therefore, for example, even when the mounting shape of the terminal fitting mounting portion is different between plus and minus, there is no need to prepare two types of terminal fittings for plus and minus, in other words, one kind of terminal fitting. By only preparing the terminal fitting 70, it is possible to share the terminal fitting 70 for both plus and minus use. Therefore, there is no need to prepare two connection terminals (corresponding to the terminal metal fittings of the present invention) on the positive electrode side (for positive use) and the negative electrode side (for negative use) one by one, as in the above-mentioned Patent Document 1. It can prevent that the number of parts of a metal fitting increases.

  This point will be supplementarily described. As shown in FIG. 2 (a), the attachment portion 95 is provided with two claw portions 95 b corresponding to the attachment positions of the two terminal fittings 70, and the two claw portions 95 b are horizontally reversed at the attachment portion 95. Exists in the position. However, one of the claw portions 95b (the claw portion 95b on the left side of the drawing) is fitted into the movement restricting slit 72a of one of the two terminal fittings 70 and the other claw 95b ( The claw portion 95 b on the right side of the drawing is fitted in the movement restricting slit 72 b of the other terminal fitting 70. That is, in this way, even when the setting positions of the two claw portions 95b in the mounting portion 95 are reversed on the left and right, one type of terminal fitting 70 is prepared by adopting the above configuration. Only the two claw portions 95b and the corresponding movement restricting slits 72a and 72b can be fitted (shared). In addition, as shown in FIG. 2 (b), in the case of the two terminal fittings 70, even when the direction in which the lead wire 91 is bound to the lead wire connecting portion is reversed left and right, by adopting the above configuration, By preparing only one type of terminal fitting 70, the lead 91 can be reliably entangled (shared) with the lead wire connecting portion regardless of the difference in the tangling direction of the lead wire 91.

[Example of application of terminal fittings to speaker devices]
Next, an example in which the terminal fitting for connecting the wiring and the lead wire described above is applied to the capacitor fixing portion 11c of the speaker device 100 will be described. Below, the structure of the speaker apparatus 100 is demonstrated first, and the application example to the capacitor | condenser fixing | fixed part 11cc of a terminal metal fitting is demonstrated after that.

  In the present specification, the plus terminal fitting 14c and the minus terminal fitting 14d correspond to the terminal fitting 70 according to the above-described embodiment. For this reason, in the following, in the plus terminal fitting 14c and the minus terminal fitting 14d, the same components as those of the terminal fitting 70 are denoted by the same reference numerals, and the description thereof is omitted.

  FIG. 4 is a cross-sectional view of the speaker device 100 including the terminal fitting for connecting the wiring and the lead wire according to the embodiment of the present invention, cut along a plane passing through the central axis L1. FIG. 5 is a perspective view of the back side of the speaker device 100 when the speaker device 100 shown in FIG. 4 is observed from the side opposite to the sound emission side.

  As shown in FIG. 4, the speaker device 100 includes a magnetic circuit 30 including a yoke 1, a magnet 2, and a modified plate 3, a frame 4, a voice coil bobbin 5, a voice coil 6, a damper 7, a diaphragm 8, an edge 9, and a cap. 10, a speaker unit 80 having a vibration system member 31 including 10 and other constituent members, and a speaker device bracket 11 attached to the speaker unit 80.

  Here, as other components, the packing 16 and 17, the cushion member 18, the speaker device terminal 20 having the terminal substrate 21 to which the plus terminal fitting 22 and the minus terminal fitting 23 are attached, the output wiring on the amplifier side Connector terminal 13 for a speaker device connected to a connector terminal (not shown) connected to a capacitor, a capacitor (network electronic component) 14 having positive and negative terminals (not shown), and a positive terminal fitting 14c for connecting a capacitor And negative terminal fitting 14d, male screws 15 and 19, and the like.

  First, the configuration of the speaker unit 80 will be described. In the present invention, the configuration and driving method of the speaker unit 80 are not limited.

  The configuration of the magnetic circuit 30 is as follows.

  The magnetic circuit 30 is configured as an external magnet type magnetic circuit.

  The yoke 1 has a pole portion 1a having a substantially columnar shape, and a flange portion 1b formed so as to extend obliquely upward from the lower end portion of the outer peripheral wall of the pole portion 1a. A female screw (screw hole) 1ab that fits with the male screw 15 is formed in the pole portion 1a.

  The magnet 2 has a substantially annular shape and is mounted on the flange portion 1b. A variant plate 3 is mounted on the magnet 2. The variant plate 3 has a variant shape with respect to the annular plate. In this example, the outer shape of the atypical plate 3 has a shape in which a plurality of semicircular shapes are combined with a circular shape, and the speaker device bracket 11 has a circumferential direction (the direction of arrow Y10 in FIG. 5) of the speaker unit 80. Has the role of positioning. Further, on the upper surface of the variant plate 3, there is provided a columnar projection 3 a having a role of crimping and fixing the frame 4 to the variant plate 3. A magnetic gap 32 in which the magnetic flux of the magnet 2 concentrates is formed in the gap between the inner peripheral wall of the modified plate 3 and the outer peripheral wall of the pole portion 1a.

  Next, the configuration of the vibration system member 31 is as follows.

  The frame 4 has a function of supporting various speaker device components. The frame 4 has a substantially bowl-like shape and a step-like cross-sectional shape, a first step portion 4a provided on the lower end side thereof, and a second step provided on the upper side and outside of the first step portion 4a. Part 4b and a third step part 4c provided above and outside the second step part 4b. The first step portion 4 a is provided with an opening 4 ab that fits with the protruding portion 3 a of the variant plate 3. The third step portion 4c is provided with an opening 4ca through which the male screw 19 is inserted. The frame 4 is mounted on the variant plate 3 with the projection 3a inserted into the opening 4ab which is an element thereof, and the first step portion 4a and the variant plate 3 being in contact with each other.

  The voice coil bobbin 5 has a substantially cylindrical shape. The vicinity of the lower end portion of the voice coil bobbin 5 covers the vicinity of the upper end portion of the pole portion 1 a of the yoke 1. Thereby, the vicinity of the lower end portion of the inner peripheral wall of the voice coil bobbin 5 faces the vicinity of the upper end portion of the outer peripheral wall of the pole portion 1 a, while the vicinity of the lower end portion of the outer peripheral wall of the voice coil bobbin 5 is the inner peripheral wall of the modified plate 3. And a part of the inner peripheral wall of the magnet 2 respectively.

  The voice coil 6 is wound around the lower end portion of the outer peripheral wall of the voice coil bobbin 5, and the outer peripheral wall of the voice coil 6 faces the inner peripheral wall of the modified plate 3. The voice coil 6 is composed of one wiring and has positive and negative lead wires (not shown). The plus lead wire is an input wiring for an L (or R) channel signal, and the minus lead wire is an input wiring for a ground (GND) signal. The positive and negative lead wires are respectively electrically connected to the positive tinsel wire 42 and the negative tinsel wire 43 through solder (the hatched portion in FIG. 5, the same applies hereinafter), and the positive tinsel wire 42. And the negative tinsel wire 43 are soldered to the plus terminal fitting 22 and the minus terminal fitting 23 attached to the terminal board 21 of the speaker device terminal 20 provided near the first step portion 4a of the frame 4, respectively. Electrically connected. The plus terminal fitting 22 is electrically connected to the plus terminal fitting 14c connected to the connector terminal 13 and the plus terminal of the capacitor 14 (see the positive lead wire 14a, see FIG. 7) through solder and wiring. On the other hand, the minus terminal fitting 23 is electrically connected to the connector terminal 13 through solder and wiring. Also, the minus terminal fitting 14d for connecting the capacitor is electrically connected to the connector terminal 13 and the minus terminal of the capacitor 14 (the minus lead wire 14b, see FIG. 7) through solder and wiring. As a result, a signal and power (voice current) for one channel are input to the voice coil 6 from the amplifier side via the capacitor 14 and the like.

  The damper 7 has a substantially annular shape. The outer peripheral portion of the damper 7 is attached to the first step portion 4 a of the frame 4, while the inner peripheral edge portion of the damper 7 is attached near the upper end portion of the outer peripheral wall of the voice coil bobbin 5. Accordingly, the damper 7 has a role of elastically supporting the voice coil bobbin 5 and the like.

  The diaphragm 8 has a cone shape and has a function of radiating sound waves according to an input signal. The inner peripheral edge of the diaphragm 8 is attached to the upper end of the outer peripheral wall of the voice coil bobbin 5. An edge 9 made of a material such as rubber is attached to the outer peripheral edge of the diaphragm 8 and has a substantially Ω-shaped cross-sectional shape. The outer peripheral edge portion of the edge 9 has an annular shape, and is attached on the third step portion 4c of the frame 4 via a packing 16 made of a resin material or the like.

  The cap 10 has a dome shape, and the vicinity of the outer peripheral end portion thereof is attached on the sound emitting surface of the inner peripheral portion of the diaphragm 8 on the sound emitting side. For this reason, the cap 10 plays a role of preventing moisture, foreign matter, and the like from entering the magnetic circuit 30 from the sound emission side.

  The packing 17 has a substantially annular shape and is formed of a resin material or the like. The packing 17 has a female screw (screw hole) 17 a at a position corresponding to the opening 4 ca provided in the third step portion 4 c of the frame 4. The male screw 19 is inserted from the back side of the third step portion 4 c of the frame 4 into the opening 4 ca and is fitted with the female screw 17 a of the packing 17, whereby the packing 17 is placed on the third step portion 4 c of the frame 4. It is attached.

  The cushion member 18 has a rod-like shape and is mounted on the packing 17 in a state of being deformed into an annular shape.

  Next, the configuration of the speaker device bracket 11 will be described with reference to FIGS.

  FIG. 6A shows a front view of the speaker device bracket 11 observed from the side opposite to the arrow Y1 direction in FIG. FIG. 6B shows a rear view of the speaker device bracket 11 observed from the direction of the arrow Y1 in FIG.

  The speaker device bracket 11 is made of a resin material or the like, and has a positioning portion 11a having a role of positioning the speaker device bracket 11 with respect to the circumferential direction of the speaker unit 80 (in the direction of arrow Y10 in FIG. 5). It is provided so as to straddle the center of the portion 11 a and is formed in a shape that is connected to a portion of the positioning portion 11 a on the opposite side, and is formed in a shape that covers a part of the yoke 1, and is fixed to the yoke 1. A yoke fixing portion 11b, a capacitor fixing portion 11c provided outside the positioning portion 11a and fixing the capacitor 14, a connector terminal fixing portion 11d provided outside the positioning portion 11a and fixing the connector terminal 13, Arranged between the capacitor fixing portion 11c and the connector terminal fixing portion 11d to fix various wires of the speaker device 100. Configured with the fixing portion 11e (the portion enclosed by a broken line), the. Here, examples of the various wirings of the speaker device 100 include wirings that are electrically connected to the capacitor 14, the speaker device terminal 20, and the connector terminal 13.

  The positioning portion 11a has a substantially annular shape, and the inner portion 11ab has a shape that fits with the outer shape of the variant plate 3. That is, the shape of the inner portion 11ab of the positioning portion 11a has a shape formed by hollowing out a shape obtained by combining a plurality of semicircular shapes into a circular shape. That is, the inner portion 11ab of the positioning portion 11a is an offset line of the variant plate 3.

  An insertion hole 11ba for inserting the male screw 15 is provided at the center of the yoke fixing portion 11b. The yoke fixing portion 11b is disposed at a position covering a part of the back surface of the yoke 1 located on the opposite side to the sound emission side. The yoke fixing portion 11b is attached to the yoke 1 by inserting the male screw 15 into the insertion hole 11ba from the back side thereof and fitting the male screw 15 with the female screw 1ab of the yoke 1. Thereby, the bracket 11 for speaker apparatuses can be attached to the back side of the yoke 1 located in the opposite side to a sound emission side.

The capacitor fixing portion 11c includes a capacitor support portion 11ca that supports the capacitor 14,
Capacitor position restricting portion 11cb that has an arch shape, is provided on the side where capacitor 14 is inserted, and in the vicinity of one end of the capacitor support portion, and prevents the capacitor 14 from rising and restricts the position of capacitor 14 And an insertion hole 11cd provided on the opposite side to the side where the capacitor 14 is inserted and in the vicinity of the other end side of the capacitor support portion and into which the positive terminal metal fitting 14c and the negative terminal metal fitting 14d are inserted. The positive terminal fitting 14c and the negative terminal fitting 14d are attached between the capacitor connecting terminal mounting portion 11cc and the plus terminal fitting 14c and the minus terminal fitting 14d. A short-circuit preventing rib 11ce that is formed in a separated shape and prevents a short circuit between the metal fittings for both terminals. .

  Here, the capacitor connection terminal mounting portion 11cc is located near the insertion hole 11cd and the short-circuit prevention rib 11ce in the movement restricting slit 72a (see FIG. 7) of the plus terminal fitting 14c or the minus terminal fitting 14d. It has a claw portion 11cf having a claw-like shape that fits into the movement restricting slit 72b (see FIG. 7). Further, the plus terminal metal fitting 14c and the minus terminal metal fitting 14d are respectively attached to the capacitor connection terminal attaching portion 11cc in a state of being inserted into the corresponding insertion holes 11cd.

  As shown in FIGS. 4 and 5, the capacitor 14 has a cylindrical shape, is supported by the capacitor support portion 11ca, and prevents the capacitor position restricting portion 11cb from lifting to the sound emission side and the opposite side. In this state, the capacitor is fixed to the capacitor fixing portion 11c in a state where the position is restricted. As shown in FIG. 7, the plus side lead wire 14a and the minus side lead wire 14b of the capacitor 14 are connected to the plus terminal fitting 14c and the minus terminal fitting 14d for connecting the capacitors via the solder 93, respectively. . A short-circuit preventing rib 11ce as a partition member is provided between the plus terminal fitting 14c and the minus terminal fitting 14d to prevent a short circuit between the two terminal fittings. The structure of the capacitor fixing portion 11c for fixing the capacitor 14 shown in this example is an example. In the present invention, the fixing structure of the capacitor fixing portion 11c for fixing the capacitor 14 employs various known structures. Is possible. In the present invention, the setting position of the capacitor fixing portion 11c with respect to the speaker device bracket 11 is not limited, and the capacitor fixing portion 11c is set to an appropriate position of the speaker device bracket 11 according to the specifications of the speaker device 100, and the like. For example, it is possible to freely set a position where space can be taken.

  The connector terminal fixing part 11d has a shape for sandwiching the connector terminal 13, and is opposed to the first support part 11da that contacts one side surface of the connector terminal 13 and the first support part 11da with a certain distance. Provided on one end side of the provided second support part 11dc, the first support part 11da and the second support part 11dc, and at a position facing the third support part 11db and the third support part 11db. And a fourth support portion 11dd provided on the other end side of the first support portion 11da. 4 and 5, the connector terminal 13 has a substantially square shape, and includes a first support portion 11da, a second support portion 11dc, a third support portion 11db, and a fourth support portion 11dd. And fixed to the connector terminal fixing portion 11d. The structure of the connector terminal fixing part 11d for fixing the connector terminal 13 shown in this example is an example. In the present invention, the fixing structure of the connector terminal fixing part 11d for fixing the connector terminal 13 is various known structures. Can be adopted. Further, in the present invention, the setting position of the connector terminal fixing portion 11d with respect to the speaker device bracket 11 is not limited, and the connector terminal fixing portion 11d is appropriately connected to the speaker device bracket 11 according to the specifications of the speaker device 100 or the like. It is possible to freely set a position, for example, a position where space can be taken.

  The wiring fixing portion 11e is provided so as to protrude from a predetermined position of the positioning portion 11a on the opposite side to the sound emission side, and has a plurality of holding portions 11ea for holding the various wires of the speaker device 100 described above. In this example, the wiring fixing part 11e is provided in the vicinity of each of the capacitor fixing part 11c and the connector terminal fixing part 11d. The wiring fixing portion 11 e is provided at a position corresponding to the vicinity of the speaker device terminal 20 when the speaker device bracket 11 is attached to the speaker unit 80. Then, as shown in FIG. 5, the various wirings are routed along the wiring fixing part 11 e and fixed in a state of being sandwiched by the clamping part 11 ea that is the element.

  The speaker device bracket 11 having the above configuration includes at least a part (including the yoke 1) of the magnetic circuit 30 positioned on the opposite side to the sound emission side in the speaker unit 80 in a state where the connector terminal 13 and the capacitor 14 are held. ) Is attached to the position that covers.

  Next, an application example of the terminal fitting to the capacitor fixing portion 11c will be described with reference to FIG.

  FIGS. 7A to 7C are enlarged views showing the vicinity of the capacitor fixing portion 11c of FIG. Specifically, FIG. 7A shows a terminal for connecting a capacitor to a plus terminal fitting 14c (corresponding to the terminal fitting 70) and a minus terminal fitting 14d (corresponding to the terminal fitting 70) according to the embodiment of the present invention. It is one side view which shows the state attached to the part 11cc. FIG. 7B is a front view showing a state in which the plus terminal fitting 14c and the minus terminal fitting 14d are attached to the capacitor connecting terminal attaching portion 11cc when viewed from the direction of the arrow Y24 in FIG. 7A. It is. FIG. 7C is a schematic cross-sectional view including the plus terminal fitting 14c, the minus terminal fitting 14d, and the capacitor fixing portion 11c along the cutting line X3-X4 in FIG.

  In order to attach the plus terminal fitting 14c and the minus terminal fitting 14d to the capacitor connecting terminal attaching portion 11cc, the following is performed.

  As can be understood with reference to FIG. 7, first, the plus terminal fitting 14c and the minus terminal fitting 14d are moved in the direction of the arrow Y24 where the capacitor connecting terminal mounting portion 11cc exists, and the plus terminal fitting 14c and The attached portion 72 of the minus terminal fitting 14d is inserted into the insertion hole 11cd of the capacitor connecting terminal attaching portion 11cc, and the plus terminal fitting 14c and the minus terminal fitting 14d are then connected to the capacitor connecting terminal attaching portion 11cc. By pushing inward, the claw portion 11cf of the capacitor connection terminal mounting portion 11cc is fitted into the movement restricting slit 72a or 72b of the mounted portion 72. As a result, the plus terminal fitting 14c and the minus terminal fitting 14d are fixed (locked) to the capacitor connecting terminal mounting portion 11cc. With such a structure, an external force that may cause the positive terminal metal fitting 14c and the negative terminal metal fitting 14d to disengage from the capacitor connection terminal mounting portion 11cc in the direction opposite to the arrow Y24 direction in FIG. Even if it acts, as can be understood with reference to FIG. 7C, the capacitor connection terminal mounting portion 11cc is caused by the interaction between the claw portion 95b of the capacitor connection terminal mounting portion 11cc and the movement restricting slit 72a or 72b. The claw portion 11cf is caught by the portion of the attached portion 72 located below the movement restricting slit 72a or 72b, and the plus terminal fitting 14c and the minus terminal fitting 14d are detached from the capacitor connecting terminal attaching portion 11cc. Can be prevented. 7A to 7C show the state in which the plus terminal fitting 14c and the minus terminal fitting 14d are attached to the capacitor connecting terminal attaching portion 11cc as described above.

  In the present embodiment, the plus lead wire 14a and the minus lead wire 14b of the capacitor 14 and the wires connected to each of the plus terminal fitting 14c and the minus terminal fitting 14d (to the above-described interconnection 90). The connection structure between the plus terminal fitting 14c and the minus terminal fitting 14d is the same as the connection structure between the lead wire 91 and the wiring 90 and the terminal fitting 70 described above, and a description thereof will be omitted.

  According to the above configuration, the above-described effects of the present invention can be obtained in the speaker device 100.

  In the present invention, the terminal fitting for connecting the wiring and the lead wire having the above-described configuration can be applied not only to the capacitor connection terminal mounting portion 11 cc of the speaker device 100 but also to the speaker device terminal 20. is there. That is, the terminal fitting of the present invention can be applied to all parts of the speaker device that need to connect the lead wire and the wiring.

[Modification]
In the present invention, the positional relationship between the slit 71c and the other slit 71d is not limited to the above embodiment. For example, in the present invention, as shown in FIG. The first slit 71da and the second slit 71db may be provided at positions that are connected in the width direction of the connecting portion 71 and on both sides of the slit 71c. Even in such a configuration, the above-described effects of the present invention can be obtained.

  In addition, in the present invention, various modifications can be made without departing from the spirit of the present invention.

The various side view and front view which show the structure of the terminal metal fitting for connecting the lead wire and wiring which concern on the Example of this invention are shown. The various side views and front views which show the attachment state to the attachment part of the terminal metal fitting which concerns on a present Example are shown. The perspective view which shows the structure of the terminal metal fitting for connecting the lead wire and wiring which concern on a comparative example is shown. Sectional drawing of the speaker apparatus which has the terminal metal fitting for connecting the lead wire and wiring which concern on a present Example is shown. The perspective view which observed the speaker apparatus which has a terminal metal fitting for connecting the lead wire and wiring which concern on a present Example from the back side is shown. The front view and rear view of the bracket for speaker apparatuses which have the terminal attachment part for capacitor | condenser connection to which the terminal metal fitting which concerns on a present Example is attached are shown. The various side view and front view which show the state which attached the terminal metal fitting which concerns on a present Example to the terminal attachment part for capacitor | condenser connection are shown. The front view which shows the structure of the terminal metal fitting for connecting the lead wire and wiring which concern on a modification is shown.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Speaker apparatus bracket 11c Capacitor fixing | fixed part 11cc Capacitor connection terminal attachment part 11cd Insertion hole 11cf Claw part 14 Capacitor 14a Positive side lead wire 14b Negative side lead wire 14c Positive terminal metal fitting 14d Negative terminal metal fitting 70 Terminal metal fitting 71 Connection part 71a, 71b Tying portion 71c Slit 71d Other slits 71da First slit 71db Second slit 72 Mounted portion 72a, 72b Movement restriction slit 80 Speaker unit 90 Wiring 91 Lead wire 93 Solder 95 Mounting portion 95a Insertion hole 95b Nail part 100 Speaker device

Claims (6)

A connection portion having a lead wire connection portion to which a lead wire is connected and a wiring connection portion to which a wiring is connected;
In the connecting portion, the lead wire connecting portion and the wiring connecting portion are provided at positions close to each other. It is formed in a substantially L-shaped shape, one end side is the connecting portion, and the other end side is a mounted portion attached to the mounting portion,
The connection portion has a bifurcated shape, and has a pair of entangled portions to which the lead wire and the wiring are entangled,
The wiring connection portion includes the pair of binding portions, and a slit provided between the pair of binding portions and into which the wiring is inserted,
2. The lead wire connecting portion includes the pair of binding portions and another slit provided between the pair of binding portions and at a position adjacent to the slit. The terminal fitting described in 1. The other slit has a first slit and a second slit,
3. The terminal fitting according to claim 2, wherein the first slit and the second slit are provided in a width direction of the connection portion and at positions connected to both sides of the slit.   4. The terminal fitting according to claim 1, wherein the lead wire connecting portion has a symmetrical shape with respect to an imaginary straight line passing through a center in the width direction of the connecting portion. 5.   The attached portion has a movement restricting slit for restricting movement of the attached portion with respect to the attaching portion when fitted with a claw portion provided in the attaching portion, and the width direction of the attached portion 5. The terminal fitting according to claim 2, wherein the terminal fitting has a symmetric shape with respect to another virtual straight line passing through the center of the terminal. The terminal fitting according to any one of claims 1 to 5,
The mounting portion for the speaker device, the lead wire and the wiring,
The terminal fitting is attached to the attachment portion, the lead wire is electrically connected to the lead wire connection portion, and the wiring is electrically connected to the wiring connection portion. Speaker device.

Images