JPH0636178U - Temperature switch - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a temperature switch with excellent durability and industrial mass productivity. [Structure] Switch part 1 that conducts or does not connect depending on the ambient temperature
The lead 14 of 0 is soldered to the connection terminal 40 provided on the resin cap 20. The switch portion 10 in which the leads 14 are covered with the resin cap 20 is
By engaging 0 with the mounting bracket 30,
Held in.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a structure of a temperature switch in which a reed switch is inserted into a hole of a temperature-sensitive magnetic material or a permanent magnet, a connecting terminal is connected to a lead of a reed switch, and the whole is held by a mounting bracket.

[0002]

[Prior art]

 3A and 3B show a perspective view and an exploded perspective view of a conventional temperature switch of this type. In FIGS. 3A and 3B, the conventional temperature switch has a switch body 100 and a mounting bracket 32 that holds the switch body 100. The switch body 100 is held by the resin cap 26 being fitted (or fixed by adhesion) into the tubular portion of the mounting bracket 32. The switch body 100 maintains the insulation of the switch part 10, the lead wires 60 provided at both ends of the switch part 10 and the lead wires 60 connected to the outside by caulking terminals 50, respectively, for external connection. Therefore, it has a cylindrical resin cap 26 arranged on the outer periphery of the connecting portion. The switch unit 10 has a lead switch 11 having leads 16 at both ends, a tubular temperature-sensitive magnetic body 12 and a permanent magnet 13 arranged on the outer periphery of the reed switch 11, and a space between the two leads 16 is provided. , It becomes conductive (or non-conductive) when the environmental temperature is a predetermined temperature.

[0003]

[Problems to be solved by the device]

 However, in the conventional temperature switch, as described above, since the lead wire 60 is connected to the lead 16 by the crimp terminal 50, the durability is poor with respect to an external force, particularly an external force in the pulling direction. There is a point.

Further, when the resin cap 26 is fitted and inserted into the mounting bracket 32, the resin cap 26 is likely to come off the mounting bracket 32 depending on the fitting dimension relationship of the fitting and insertion. There is a problem that it is weak against external force. On the other hand, when the resin cap 26 is adhered to the mounting member 32, the manufacturing process becomes complicated, which is not suitable for industrial mass production.

Further, the work of passing the switch body 100 through the tubular portion of the mounting member 32 causes a deterioration in workability, and thus is not suitable for industrial mass production.

An object of the present invention is to provide a temperature switch having excellent durability and industrial mass productivity.

[0007]

[Means for Solving the Problems]

 According to the present invention, there are provided a switch unit including a lead that conducts and does not pass according to an environmental temperature, a cap unit that covers the lead, and a holding unit that holds the switch unit in which the lead is covered by the cap unit. In the temperature switch having the temperature switch, the cap part includes a terminal to which the lead is fixed, and the holding part engages with the cap part.

That is, according to the present invention, the connecting lead wire uses the connecting terminal, the terminal is fixed to the resin cap, the lead of the reed switch and the terminal are connected by welding, and the whole is mounted in a semi-cylindrical shape. It is configured to be fixed with metal fittings, and is characterized by easy assembly and ensuring stable holding strength.

[0009]

【Example】

 Hereinafter, a temperature switch according to an embodiment of the present invention will be described with reference to the drawings.

1A and 1B are a perspective view and an exploded perspective view of a temperature switch according to a first embodiment. 1 (a) and 1 (b), the present temperature switch includes a switch portion 10 having leads 14; a resin cap 20 arranged to cover the leads 14; and a mounting bracket 30 for holding them. Have.

The switch portion 10 is the same as the conventional example except that the lead 14 is formed into an L shape. The resin cap 2 has a cylindrical shape, and has a connection terminal 40 provided by insert molding, a lead insertion groove 21 extending from the end surface to the connection terminal 40, and an engagement claw 22 formed on a side surface. The mounting member 30 has a semi-cylindrical portion, and has an engagement hole 31 on the side surface of the cylinder.

The leads 14 of the switch portion 10 are inserted along the lead insertion grooves 21 of the resin cap 20 and soldered to the connection terminals 40. In this state, the engaging claw 22 of the resin cap 20 is engaged with the engaging hole 31 of the mounting bracket 30, and the two resin holders 20 and the switch portion 10 having the leads 14 fixed to the connection terminals 40 are It is held by the mounting bracket 30.

2A and 2B are a perspective view and an exploded perspective view of a temperature switch according to a second embodiment. 2A and 2B, the lead 15 of the switch unit 10 is cut to a predetermined length. The resin cap 23 is the same as that of the first embodiment except that the L-shaped formed connecting terminal 41 is provided by insert molding, and the lead insertion groove 24 extending from the end surface to the connecting terminal 41, And an engaging claw 25 formed on the side surface. The mounting bracket 30 is the same as that of the first embodiment, has a semi-cylindrical portion, and has an engagement hole 31 on its side surface.

Then, the lead 15 of the switch portion 10 is inserted along the lead insertion groove 24 of the resin cap 23 and soldered to the connecting terminal 41. In this state, the engaging claw 25 of the resin cap 23 is engaged with the engaging hole 31 of the mounting bracket 30, and the two resin holders 23 and the switch portion 10 in which the leads 15 are fixed to the connecting terminals 41 are , Are held by the mounting bracket 30.

[0015]

[Effect of device]

 The temperature switch according to the present invention is excellent in strength against external force because the cap portion that covers the reed has a terminal to which the lead is fixed, and the holding portion that holds the switch portion engages with the cap portion.

Further, since it is not necessary to bond the cap to the holding portion, the manufacturing process is simplified and it is suitable for industrial mass production.

[Brief description of drawings]

FIG. 1 is a perspective view and an exploded perspective view of a temperature switch according to a first embodiment of the present invention.

FIG. 2 is a perspective view and an exploded perspective view of a temperature switch according to a second embodiment of the present invention.

FIG. 3 is a perspective view and an exploded perspective view of a conventional temperature switch.

[Explanation of symbols]

 10 Switch Part 11 Reed Switch 12 Thermosensitive Magnetic Material 13 Permanent Magnets 14, 15, 16 Leads 20, 23, 26 Resin Caps 21, 24 Lead Insertion Grooves 22, 25 Engaging Claws 30, 32 Mounting Brackets 31 Engaging Holes 40, 41 Connection terminal 50 Crimping terminal 60 Lead wire 100 Switch body

Claims (1)

[Scope of utility model registration request] 1. A switch unit having a lead that conducts and breaks according to an ambient temperature, a cap unit that covers the lead, and a holding unit that holds the switch unit in which the lead is covered by the cap unit. In the temperature switch, the cap part includes a terminal to which the lead is fixed, and the holding part engages with the cap part.