JPH04103792U - Speaker terminal board - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a process for attaching a lead wire to a terminal fitting by allowing the lead wire to be simply and easily attached to an engagement groove for engaging and holding the lead wire formed on the terminal fitting. Improve work efficiency. [Structure] An engagement groove 25b for engaging and holding the lead wire 30 in a state where the opening is located on the terminal lug side and perpendicular to the terminal lug, close to the vertically standing terminal lugs 25a and 26a; A pair of terminal fittings 25, 2 provided with 26b
6, the terminal lugs 25a and 26a are located on the side edges along the longitudinal direction of the rectangular insulating plate 21, and the engagement grooves 25b and 26b are parallel to the side edges at the ends of the short sides, and Attach it while it is located outside.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This idea was developed to connect external input and voice to speakers used in various audio equipment. Regarding the speaker terminal board for connecting the lead wire to the coil lead wire. It is something that

0002

[Conventional technology]

In general, a speaker connects the voice coil lead wire and external input to the speaker frame. It is connected by a terminal plate fixed to a mounting plate integrally provided with the Various types of speaker terminal plates have been put into practical use.

0003 For example, the terminal plate 1 shown in FIG. A rectangular insulating plate 3 having holes for fixing to a plate (not shown) with eyelets 2 It has a terminal lug 4a standing vertically on the top so that it can also be connected to a Faston terminal. A pair of terminal fittings 4, 4 having an L-shaped cross section are connected to the lead wire 5 formed on the mounting portion 4b. It is installed with the engagement grooves 6 protruding from the side edges, respectively, for retaining the connection. One end of the lead wire 5 connects to the voice coil lead wire, and the other end of the lead wire 5 is connected to the engagement groove. 6 onto the terminal fitting 4 and soldered thereon. Although not shown, the engaging groove 6 can be made by inverting the terminal fittings 4, 4 shown in FIG. Terminal plates installed so as to protrude from the side edges in the longitudinal direction of the insulating plate are also known. Ru. In addition, the terminal plate 11 shown in FIG. An engagement groove 12 is formed for engagement and retention, and the other is for connecting an external input. The planar terminal fittings 14, 14 with the connecting portions 13 are placed on a rectangular insulating plate 15, Connecting portions 13, 13 protrude from one side edge along the longitudinal direction, and each side edge It is attached so that the engaging grooves 12, 12 protrude from the The other end of the lead wire 16 connected to the output wire is pulled out from the engagement groove 12 onto the terminal fitting 14. It is something that is taken out and soldered.

0004

[Problem that the idea aims to solve]

In such known terminal boards for speakers, the terminal boards 1 and 1 shown in FIGS. 4 and 5 are 1 is an insulating plate with rectangular engagement grooves 6 and 12 for engaging and holding lead wires. It is provided so as to protrude from the side edge of the short side of 3 and 15, and one end is used for pulling the voice coil. When soldering and fixing the lead wires 5 and 16 connected to the output wires on the terminal fittings 4 and 14, If the Lift the insulation plates 3 and 15 forward as shown by the line arrows and pull out the drawer. After routing the lead wires 5 and 16 in the direction shown by the dotted arrow (horizontal direction), Guide the wires 5 and 16 into the engagement grooves 6 and 12, respectively, and lead them through the engagement grooves 6 and 12. Engage and hold the wires 4 and 16, and solder and fix the lead wires 4 and 16 and the connection terminals 4 and 14. The connections are made by cutting off the excess lead wires. Therefore, when connecting the lead wire to the terminal fitting on the terminal board, lift the lead wire. Afterwards, it is necessary to route this horizontally, which results in extremely poor work efficiency. In any case, the groove width of the engagement groove for engaging and holding the lead wire is the same. For this purpose, use a lead wire with an outer diameter that matches the width of the engagement groove formed on the terminal fitting. can securely engage and hold this, but if the outer diameter of the lead wire is smaller than the groove width. If the lead wire is too thick or large, it will not be possible to keep the lead wire engaged, so do not use it. The lead wires used are restricted by the engagement groove, and there is no freedom in design. There were many issues to be resolved.

[0005] On the other hand, in order to avoid horizontal routing of the lead wires, the terminal metal is shaped as shown in Figure 3. When attaching the tool 4 to the insulating plate 3, the engagement groove 6 is aligned in the longitudinal direction of the insulating plate 3 as described above. It is conceivable to provide it so as to be located on the side edge along the line. However, the mounting portion 4b provided with the engagement groove 6 in this way is or the connection part of the external input terminal as shown in Figure 5. 13 protrudes from the longitudinal side edge of the insulating plate 15, the speaker The diameter of the drop-in hole formed in the mounting plate made of iron plate for installation overlaps with the diameter of the The terminal cannot be inserted into the drop-in hole, and even if it is possible to insert the Because the mounting part of the metal fittings is close to the mounting plate, there is no risk of short-circuiting. I had all kinds of problems.

[0006] In view of the current situation, this idea was developed to make it extremely easy to attach the lead wire to the terminal fitting. By selecting an engagement groove that is easy to use and matches the lead wire being used. To provide a terminal board for a speaker that can securely engage and hold lead wires. The purpose is to

[0007]

[Means to solve the problem]

In order to achieve the above object, the speaker terminal board of this invention has faston terminals. For terminal boards equipped with terminal fittings that have attachable upright terminal lugs, Openings should be made in close proximity to terminal lugs that stand up vertically by bending or standing up. The lead wire is engaged and held with the part located on the terminal lug side and perpendicular to the terminal lug. A pair of terminal fittings provided with engagement grooves for holding the terminals are attached to the short side ends of the rectangular insulating plate. In each case, the engagement grooves are parallel to the side edges and positioned outside the side edges. It is characterized by:

[0008] The biggest feature of this invented speaker terminal board is the terminal metal fittings that make up the terminal board. The engagement groove is located on the vertical terminal lug side, and the engagement groove is is located at a point perpendicular to the terminal lug, and if it has such a structure, the end Even if the child lug itself is formed by bending, it consists of protrusions. or even formed by means other than the above, When attaching the terminal fitting to the insulating plate, make sure that the terminal lug is aligned along the longitudinal side edge of the insulating plate. position, and the engagement groove is parallel to and protrudes from the side edge of the short side. It is installed and fixed so that it does not rotate using tools etc.

[0009] The engagement groove for engaging and retaining the lead wire provided in the terminal fitting has at least a plurality of engagement grooves. A groove runs from the opening toward the tip so that lead wires with different diameters can be engaged and held. It is preferable that the width decreases, and specifically, the width decreases from the opening toward the distal end. The first step is to taper the entire width to make it narrower, or step by step through the steps. The groove width is formed to be narrow.

0010

[Effect]

The speaker terminal board 20 of this invention has terminal fittings 25 and 26 constituting the terminal board. The terminal lugs 25a and 26a are located on the side edges of the rectangular insulating plate 21 along the longitudinal direction. The engagement grooves 25b and 26b for engaging and holding the lead wires It is attached and fixed to the insulating plate 21 in a state that protrudes from the side edge of the side. The terminal lugs 25a and 26a are attached to the terminal mounting plate 28 of the frame 27 on the magnetic circuit side. It is mounted and fixed towards the Therefore, when connecting the lead wire 30 to the terminal fittings 25 and 26, the lead wire mold is used. Using a jig, connect one end of the lead wire 30 in the direction of the arrow shown in FIG. Simply pull the lead wire 30 forward and lift it upwards to connect the lead wire 30 to the terminal fitting. It can be guided into engagement grooves 25b, 26b formed in 25, 26.

[0011] Furthermore, the engagement grooves 25b and 26b of the terminal fittings 25 and 26 are located on the short side of the insulating plate 21. It is attached and fixed in a state that protrudes from the side edge, and is fixed from the side edge on the longitudinal side of the insulating plate 21. Since there is no cutting protrusion, when installing the speaker into the drop-in hole of the mounting plate, the terminal plate There is no risk of it becoming a problem.

0012

【Example】

Below, an example of the speaker terminal board of this invention will be explained in detail based on the attached drawings. explain.

[0013] The speaker terminal board 20 of this invention includes a rectangular insulating plate 21 and a device mounted on the insulating plate 21. It is composed of a pair of terminal fittings 25 and 26 that are fixedly attached. One insulating plate 21 is formed by siliconizing the surface of a plate made of white fiber. A rectangular eyelet insertion hole 22 is provided in the center part, and a square eyelet insertion hole 22 is provided on the short side. Square eyelet insertion holes 2 are provided on the side edges for fixing terminal fittings 25 and 26, respectively. 3 and 24 are provided.

[0014] The width of the other terminal fittings 25 and 26 is equal to the width of the insulating plate 21, as shown in FIG. Since a Faston terminal can also be attached to one side edge of a rectangular plate member with a narrower width than The terminal lugs 25a, 26a are vertically installed, and the terminal lugs 25a, 26 The width gradually becomes narrower from the side edge forming a to the opposite side edge through a plurality of steps. The engagement grooves 25b and 26b are formed close to the terminal lugs 25a and 26a, and the terminal Punch out square eyelets 25c and 26c on the back side of the lugs 25a and 26a. It was formed by

[0015] The terminal fittings 25 and 26 having such a configuration each have an eyelet 25c formed on the insulating plate 21. Insert the eyelets 26c into the eyelet insertion holes 24 into the eyelet insertion holes 23 and 24, respectively. This is then fixed to the insulating plate 21 in a non-rotatable manner by caulking it. However, when fixing, the terminal lugs 25a and 26a of each terminal fitting 25 and 26 are Located on the side edge side along the longitudinal direction of the insulating plate 21 and formed on each terminal fitting 25, 26. As shown in FIG. It is fixed in the exposed position.

[0016] Speaker terminal board 20 obtained by fixing each terminal fitting 25, 26 is the terminal mounting plate 2 integrally attached to the speaker frame 27 as shown in FIG. Using square eyelets 29 at 8, attach the terminal lugs 25a, 2 of each terminal fitting 25, 26. Attach the speakers so that each of the speakers 6a faces toward the magnetic circuit of the speaker.

[0017] Then, connect the lead wire 30 with one end connected to the voice coil lead wire to the terminal fitting. 25 and 26, the lead wire 30 must be shaped and treated as shown in FIG. Using the tool 31, simply pull up the other end of the lead wire 30 to remove the lead wire 30. It is engaged and held in the engagement grooves 25b and 26b formed in each terminal fitting 25 and 26. The lead wire 30 held in the engagement groove and the terminal fittings 25 and 26 can be soldered. After fixing, cut the excess lead wire to connect the lead wire 30 and each terminal metal. The fittings 25 and 26 can be reliably connected.

[0018] In addition, the speaker terminal board 20 attached and fixed to the speaker frame 27 is attached at each end. The terminal lugs 25a and 26a of the child fittings 25 and 26 are arranged in the longitudinal direction of the insulating plate 21, respectively. Engagement groove 25b located inside the side edge along which the lead wire 30 is engaged and held and 26b are fixed in a state protruding from the side edge of the short side of the insulating plate 21, respectively. Therefore, as shown in FIG. 3, the drop-in hole 3 formed in the speaker mounting plate 32 3, the terminal lugs 25a and 26a should protrude from the insulating plate 21. Since it is not protruding, it can be dropped smoothly, and the terminal lug is made of metal. There is no risk of contact with the peaker mounting plate 32 and short circuit.

[0019]

[Effect of the idea]

The speaker terminal board of this invention can be made vertical by bending or standing up. The opening is located close to the terminal tag that stands up on the terminal lug side, and The terminal fitting has an engagement groove for engaging and holding the lead wire perpendicular to the terminal. The engagement groove is located at both ends of the rectangular insulating plate parallel to the side edge and outside the side edge. Since the lead wire is attached to the terminal, when connecting the lead wire to the terminal The wire can be easily and easily engaged and held in the engagement groove by simply pulling it up. It is possible. Therefore, unlike conventional methods, when the lead wire is held engaged, it is difficult to pull it up. Later, there is no need to route this horizontally, which greatly improves work efficiency. It also has many practical benefits, such as simplifying work and improving product yield. It has points.

[0020] In addition, the terminal lugs of the terminal fittings fixed to the insulating board do not protrude from the insulating board, so When installing the speaker into the drop-in hole formed on the speaker mounting plate, the terminal lug may drop. It can be installed smoothly without overlapping the diameter of the insertion hole, and the terminal This eliminates short-circuit accidents caused by contact between the plug and the speaker mounting plate. This is ideal as a terminal board.

[0021] Furthermore, an engagement groove for engaging and holding the lead wire formed on the terminal fitting is provided in the opening. By forming the groove width so that it gradually decreases from the tip toward the tip, the lead The lead wire is always securely engaged in the engagement groove regardless of the diameter of the lead wire. This greatly improves the degree of freedom in speaker design.

[Brief explanation of drawings]

FIG. 1 is a bottom view showing an embodiment of a speaker terminal plate of the present invention.

FIG. 2 is a bottom perspective view showing the speaker terminal plate in FIG. 1 in an exploded state.

FIG. 3 is a partially cutaway side view showing a state where the device is attached to a speaker frame.

FIG. 4 is a bottom perspective view showing an example of a conventional speaker terminal board.

FIG. 5 is a bottom perspective view showing another example of a conventional speaker terminal board.

[Explanation of symbols]

20 Speaker terminal board 21 Insulating board 25 Terminal fittings 25a terminal lug 25b Engagement groove 26 Terminal fittings 26a terminal lug 26b Engagement groove 27 Speaker frame 28 Terminal mounting plate 30 Lead wire 32 Speaker mounting plate 33 Speaker drop-in hole

Claims (2)

[Scope of utility model registration request] Claim 1: A terminal board equipped with a terminal fitting having an upright terminal lug to which a Faston terminal can be attached,
Providing an engagement groove for engaging and holding a lead wire in a state in which the opening is located on the terminal lug side and perpendicular to the terminal lug, in proximity to a terminal lug that stands up vertically by bending or standing up. A speaker characterized in that a pair of terminal fittings are attached to the ends of the short sides of a rectangular insulating plate with respective engagement grooves parallel to the side edges and located outside the side edges. terminal board. [Claim 2] The speaker terminal board according to Claim 1,
A speaker characterized in that the engagement groove for engaging and holding the lead wire has a groove width decreasing from the opening toward the distal end so that at least a plurality of lead wires having different diameters can be engaged and held. terminal board.