JP2003068375A - Terminal connection structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the number of parts and work processes for electric connection. SOLUTION: A plug 15 in two-folded shape protrudes from the inside of a case 4 toward outside, while a lead wire 35 is connected to the plug 15. A hole 36 is opened at a prescribed position on the case 4 of one terminal of the plug 15. A recess 36a for hooking the end of the lead wire 35 is cut around the hole 36, with the end of lead wire 35 hooked to the recess 36a. The end of lead wire 35 is secured to the recess 36a by riveting using an eyelet rivet 37 inserted in the hole 36.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a terminal connection structure, and in particular, an outlet plug is provided so as to project outward from the inside of a case, and a lead wire is connected to the outlet plug by wiring. The present invention relates to a terminal connection structure composed of

[0002]

2. Description of the Related Art An electric incense burner is known as an electric appliance having a conventional terminal connecting structure of this kind. The electric incense burner will be described below. It is covered with a case made up of a case, an intermediate lid that fits into the lower case is disposed in the case, and a space formed by the intermediate lid and the upper case is covered with an aromatic material or the like. The heating element is configured to be stored.

A PTC heater for raising the temperature of the intermediate lid body to a predetermined temperature is disposed below the intermediate lid body, and
Upper and lower electrodes sandwiching the PTC heater from above and below to energize the PTC heater are provided, and the upper electrode is in contact with the lower surface of the intermediate lid. The PTC heater has a specific resistance value at a low temperature, and has a self-temperature control function by limiting the electrical conduction by rapidly increasing the resistance value when reaching a predetermined temperature, and the temperature of the object to be heated is always kept constant. It is formed so that it is heated at.

The electric incense burner is provided with a connecting portion extending from the outer peripheral end of the upper electrode, and the connecting portion is caulked and connected to one lead wire of the resistor. Further, one end of the connection terminal piece is crimped to the other lead wire of the resistor to be connected, and further, the connection piece of the connection terminal piece is sandwiched and connected by the connection portion of one terminal of the outlet plug. .

On the other hand, a conductor portion extends from one circumferential end of the contact terminal of the lower electrode, an extension portion is provided at the tip of the conductor portion, and an upright portion is provided upright on the extension portion. The upright portion is sandwiched and connected to the connection portion of the other terminal of the outlet plug. In this way, the electric connection of the electric incense burner is performed by crimping or by sandwiching, but these connecting methods increase the number of parts because crimping, or a component for sandwiching is required, There is a problem that the number of work steps for connection is increased.

In addition to the above-mentioned caulking or sandwiching, a method of connecting by soldering or directly winding a lead wire around a screw or the like is conceivable, but these also have the drawback of increasing the number of working steps. is there. Therefore, there arises a technical problem to be solved in order to reduce the number of parts for electrical connection and the number of work steps, and an object of the present invention is to solve this problem.

[0007]

DISCLOSURE OF THE INVENTION The present invention has been proposed in order to achieve the above-mentioned object, in which an outlet plug is arranged so as to project outward from the inside of a case, and a lead is attached to the outlet plug. In a terminal connection structure in which wires are connected by wiring, a hole is opened at a predetermined position in the case of one terminal of the outlet plug, and an end portion of the lead wire is attached to a peripheral portion of the hole. A terminal connection structure in which a recess for stopping is cut out, the end is locked in the recess, a rivet is inserted into the hole, and the end is fixed to the recess by riveting, Further, the rivet provides a terminal connection structure that is a hat-me-rivet, and a terminal connection structure in which the terminal connection structure is applied to an electric incense burner.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, an embodiment of the present invention will be described in detail with reference to FIGS. 1 to 3, 1
Is an electric incense burner, and the electric incense burner 1 is provided with a storage part 5 for storing a heated object (not shown) such as an aromatic in a case 4 composed of an upper case 2 and a lower case 3. Reference numeral 5 has a function as a heat dissipation case, and is formed in a box shape with one side open to allow the heated body to move in and out. A cylindrical protruding portion 6 is provided on the lower surface (right side in FIG. 3) of the housing portion 5, and the inner cylinder of the protruding portion 6 is threaded. Incidentally, in FIG. 1, 7 is a divergent hole for the fragrance, and 8 is a plug insertion hole.

Then, as shown in FIG. 4, a flat plate-shaped upper electrode 9 is provided in contact with the lower surface of the accommodating portion 5 by penetrating the projecting portion 6, and further penetrating the projecting portion 6. Then, the PTC heater 10 having an annular shape is provided in contact with the lower surface of the upper electrode 9. Next, the lower electrode 11 made of an elastic body is disposed in contact with the lower surface of the PTC heater 10, and the lower electrode 11,
The PTC heater 10 and the upper electrode 9 are the lower electrode 1
It is screwed by a bolt 12 which is inserted from below 1 and screwed into the projecting portion 6.

Further, as shown in FIGS. 5 and 6, the upper electrode 9 has a lead wire-like conductor portion 1 extending from one end of the upper electrode 9.
3 is extended, a rectangular connecting piece 14 is provided at the tip of the conductor portion 13, and a hole 1 having a predetermined diameter is provided at the center of the connecting piece 14.
4a is opened. On the other hand, a hole 16 is formed at a predetermined position inside the case 4 of an outlet plug 15 that is formed by bending it in a two-fold shape and is provided so as to project outward from the inside of the case 4. To the connection piece 14
The holes 14a of the
6, the eyelet rivet 17 is inserted, and the eyelet rivet 17 connects the connecting piece 14 and the outlet plug 15 to each other.
Is riveted.

Further, as shown in FIG. 7, the lower electrode 11 is made of an elastic metal flat plate and is bent substantially at right angles at two bent portions 18 and 19 to be formed into a substantially U-shape in a side view. As a result, the upper plate portion 20, the side plate portion 21, and the lower plate portion 22 are formed. Further, the upper plate portion 20 is bent at an obtuse angle at four bending portions 23, 24, 25 and 26 to be bent into a substantially dish shape in a side view, and the protruding portion is provided in the vicinity of the protruding portion 6. It is formed so as to be separated from the portion 6 by a predetermined dimension.

Then, a hole 27 for inserting the bolt 12 is formed in a substantially central portion of the upper plate portion 20, and a hole 28 is formed in the lower plate portion 22 corresponding to the hole 27. .
Further, in the drawing of the upper plate portion 20, the left end portion is the side plate portion 21.
The tip end side which is separated from the bent plate 29 is bent at a right angle in the direction of the lower plate part 22 with a predetermined width and a predetermined length to form a bent plate 29. Further, the bent plate 29 and the side plate part 21 are formed. A bent portion having a predetermined length at the distal end portion which is separated is separated from the upper plate portion 20 and is bent in a direction parallel to the side plate portion 21 to form a bent piece 30.

On the other hand, in the figure, the lower plate portion 22 is notched at a tip end thereof which is separated from the side plate portion 21 at the left end in a predetermined width and a predetermined length. A notch end portion parallel to the above is bent obliquely in the direction of the upper plate portion 20 with a predetermined width to form a claw portion 31.

A hole 32 is formed at a predetermined position near the left end of the side plate 21 in the drawing. And resistor 3
3 is prepared, one lead wire 34 of the resistor 33 is penetrated through the hole 32, and is passed between the claw portion 31 and the upper plate portion 20 and inserted into the vicinity of the bent piece 30, or After being inserted until it comes into contact with the bent piece 30, the bolt 12 is passed through the hole 28 and the hole 27 of the lower electrode 11 and screwed into the projecting portion 6, whereby the upper electrode 9, The PTC heater 10 and the lower electrode 11 are bolted together, and the claw portion 3 formed on the lower electrode 11
At 1, the lead wire 34 of the resistor 33 is locked.

At this time, since the lower electrode 11 is formed of an elastic metal flat plate and is formed so as to be separated from the projecting portion 6 by a predetermined dimension, the projecting portion 6 is extended by a temperature rise. Even if occurs, the protruding portion 6 does not contact the upper plate portion 20 of the lower electrode 11, the lower electrode 11 always pushes up the PTC heater 10, and the upper electrode 9 is It can be pressed against the storage part 5.

Further, as shown in FIGS. 3 and 8, a hole 36 is opened at a predetermined position in the case 4 of one terminal of the outlet plug 15, and the lead wire 3 is provided at the peripheral portion of the hole 36.
The recess 36a for locking the five ends is cut out. The recesses 36a may be formed at a plurality of locations along the peripheral edge of the hole 36, as shown in FIG.

Then, the lead wire 35 is bent, for example, to be locked in the recess 36a, the eyelet 37 is inserted into the hole 36, and the lead wire 35 is fixed to the recess 36a by riveting. . That is, the lead wire 3
The terminal 5 is securely fixed to the outlet plug 15 by the terminal connection structure using the recess 36a and the eyelet rivet 37. The hole 36 and the recess 36a are shown in FIG.
16 and a recess 16 cut out in the peripheral edge of the hole 16
It is also possible to form it at a position corresponding to "a" so as to have compatibility.

Thus, the lead wire 34 is attached to the lower electrode 11.
The resistor 33 connected by means of the terminal connection structure using the recess 36a and the hatlet rivet 37 can be easily connected to the outlet plug 15 via the lead wire 35, reducing the number of parts for electrical connection and the number of work steps. It becomes possible to do. Further, an effect of preventing the outlet plug 15 from being opened by being folded in two by the eyelet rivet 37 can be expected.

The present invention can be modified in various ways without departing from the spirit of the present invention, and it goes without saying that the present invention extends to such modifications.

[0020]

As described in detail in the above-mentioned one embodiment, the invention according to claim 1 has a terminal connecting structure in which a hole is opened at a predetermined position in a case of one terminal of an outlet plug. In addition, a recess for locking the end of the lead wire is cut out in the peripheral edge of the hole, the end is locked in the recess, and a rivet is inserted into the hole and riveted. Since the wiring is configured to be fixed to the recess, the connection of the lead wire to the outlet plug is simplified by the recess and the rivet, and the number of parts for electrical connection and the number of work steps can be reduced. Becomes

Further, in the invention according to claim 2, since the rivet is an eyelet rivet, in addition to the effect of the invention according to claim 1, there is also an effect of preventing the outlet plug from being folded in two by the eyelet rivet. Can be expected. Furthermore, since the invention according to claim 3 applies the above terminal connection structure to an electric incense burner, the electric incense burner can be expected to have the effect of the invention according to claim 1 or 2 and thus has a very significant effect. It is an invention.

[Brief description of drawings]

FIG. 1 is a front view of an electric incense burner showing an embodiment of the present invention.

FIG. 2 is a right side view of the electric incense burner showing the embodiment of the present invention.

FIG. 3 shows an embodiment of the present invention and is a partially cutaway right side view of the electric incense burner.

4 is a detailed right side cross-sectional view of the upper and lower electrodes of FIG.

FIG. 5 is an explanatory view showing the embodiment of the present invention and showing a method of connecting the upper electrode wiring and the outlet plug.

FIG. 6 is a partially cutaway left side view of the electric incense burner showing the embodiment of the present invention.

FIG. 7 is a perspective view showing an embodiment of the present invention, showing a method of connecting a lower electrode and a lead wire of a resistor.

FIG. 8 is an explanatory view showing the embodiment of the present invention and showing a method of connecting the lower electrode wiring and the outlet plug.

[Explanation of symbols]

1 electric incense burner 4 cases 5 storage 9 Upper electrode 10 PTC heater 11 Lower electrode 15 outlet plug 36 holes 36a recess 37 Hatmerivet

Continued front page    F-term (reference) 5E021 FA03 FA09 FA14 FA16 FB21                       FC32 MA40                 5E085 BB14 BB24 BB27 CC05 DD08                       FF01 JJ38

Claims (3)

[Claims] 1. A terminal connection structure in which an outlet plug is provided so as to project outward from the inside of a case, and a lead wire is connected to the outlet plug by wiring, and one terminal of the outlet plug. A hole is opened at a predetermined position in the case, and a recess for locking the end of the lead wire is cut out at the peripheral edge of the hole, and the end is locked in the recess. A terminal connection structure characterized in that a rivet is inserted into the hole and the end portion is fixed to the recess by riveting. 2. The terminal connection structure according to claim 1, wherein the rivet is a hat merit rivet. 3. The terminal connecting structure according to claim 1, wherein the terminal connecting structure is applied to an electric incense burner.