KR200479375Y1 - Safety valve adapted for a cooking appliance - Google Patents

Abstract

A gas safety valve suitable for a cooker according to the present invention comprises an electromagnet 2, a support 6 for the electromagnet 2 and an electromagnet 2 to which energy is supplied and a moving armature 5 is connected to the electromagnet 2 (5) coupled to the shutter (4) and movable relative to the electromagnet (2) between an open valve position in contact with the electromagnet (2) and a closed valve position in which no energy is applied to the electromagnet , The electromagnet (2) includes a substantially U-shaped core (7), a reel (10) inserted in the core (7) and a winding part (8) supported on the reel (10) 8 includes a phase wire 8a and a ground wire 8b. The present invention is characterized in that the reel 10 includes a part of a phase terminal 8 and a part of a ground terminal 19 which are fitted to the base 12 of the reel 10, A first end 14 of the phase terminal 18 and a second end 20 of the phase terminal 18 forming the phase connector 25 of the valve 1 through the support 6, The first end 15 of the ground terminal 19 to which the ground wire 8b is fixed and the second end 16 of the ground terminal 19 fixed to the support 6 are connected to the base 12, As shown in Fig.

Description

[0001] SAFETY VALVE ADAPTED FOR A COOKING APPLIANCE [0002]

The present invention relates to gas safety valves suitable for cooking appliances.

There is known a gas safety valve suitable for a cooking appliance comprising an electromagnet having a fixed core, a support for the electromagnet, and an open valve position where the electromagnet is energized and a moving armature is in contact with the electromagnet, And a moving armature movable with respect to the electromagnet and coupled with the shutter between energized closed valve positions.

EP1036987A2 describes a gas safety valve consisting of two U-shaped cores connected to a central connecting washer and two multi-layer windings in series, each supported around an insulating half reel with a semicircular section. Said valve comprising means for coupling the electromagnet to the support seat of the core and the connecting washer, said means comprising two (2) pieces protruding from their respective half-reels towards the electrical connection means for receiving the phase and ground leads, Terminal. At least one of the leads passes through the core.

CN 1119718A discloses a wire having a center electrode pin introduced into the center opening, a center conductor wire connected to the center electrode pin and extending through the hole into the electromagnetic core, an outer conductor wire welded to the electromagnetic support, A coil wound around one end connected to the center conductor wire and the other end connected to the end conductor wire.

Finally, JP2000018591A discloses a safety valve including a fixed core accommodated in a casing, a movable core, and a return spring for actuating a shaft coupled to the shutter. Wherein the valve includes a reel having a winding portion, the reel comprising a ground terminal inserted therein and a phase terminal inserted into the base of the coil, the end of the coil being fixed to each of the terminals . The reel also includes a ground terminal to which the ends of the coil are fixed and another ground terminal fixed at an angle difference of at least 90 degrees between the phase terminals.

The object of the present invention is to provide a gas safety valve suitable for a cooking appliance, the valve comprising an electromagnet, a support for the electromagnet, and an open valve position where the electromagnet is energized and a moving armature contacts the electromagnet, The movable armature being moveable relative to the electromagnet and coupled with the shutter between a closed valve position where energy is not supplied to the electromagnet.

The electromagnet includes a substantial U-shaped core, a reel inserted in the core, and a wound portion supported on the reel, wherein the wound portion includes a phase wire and a ground wire. Wherein the reel includes a portion of a phase terminal fitted to the base of the reel and a portion of a ground terminal, the first end of the phase terminal to which the phase wire is fixed, A second end of the phase terminal, a first end of the ground terminal to which the ground wire is fixed, and a second end of the ground terminal fixed to the support protrude from the base.

Thus, an optimized safety valve with phase and ground connections is obtained. Since the phase and ground terminals are partially inserted into the reel, there is no possibility of relative movement between the ends of the terminals and the reel, as the electrical adjustment at the ends projecting from the base is better than given, Thereby ensuring a folded connection to the phase wire and the ground wire.

These and other advantages and aspects of the present invention will become apparent in light of the drawings and detailed description of the invention.

1 is a cross-sectional view of an electromagnetic valve according to the present invention shown in two longitudinal halves at two closed and open valve positions;
2 is another cross-sectional view of the electromagnetic valve shown in Fig. 1, shown in two longitudinal halves at two closed and open valve positions; Fig.
3 is a perspective view of the reel of the electromagnetic valve shown in Fig.
4 is a plan view of the reel of the electromagnetic valve shown in Fig.
Fig. 5 is a front view of the reel of the electromagnetic valve shown in Fig. 1; Fig.
6 is a cross-sectional view of the reel of the electromagnetic valve shown in Fig.

1 and 2 show an electromagnetic safety valve 1 suitable for a gas appliance which permits or blocks the passage of gas towards a burner of a domestic appliance. The electromagnetic valve 1 includes an electromagnet 2 supported on the support 6, a shutter 4, a position corresponding to the opening valve (shown on the left side in Figs. 1 and 2) and a position corresponding to the closing valve (Shown on the right in FIGS. 1 and 2) and coupled to the shutter 4, and a movable armature 5, as well as to return the shutter 4 to the closed valve position And a spring (9). The electromagnetic valve 1 further includes a casing 3, a moving armature 5 and a partially supporting portion 6 enclosing the electromagnet 2 internally.

The shutter 4 is coupled to the moving armature 5 via the rod 23. The shutter 4 is configured to move when the movable armature 5 is pulled by the electromagnet 2 and when the electromagnet 2 is energized, the position where the movable armature 5 contacts the electromagnet 2 The open valve position shown on the left side of Figs. 1 and 2). When no further energy is supplied to the electromagnet 2, the spring 9 acts on the shutter 4 and moves the shutter to the closed valve position (shown on the right side of FIGS. 1 and 2) together with the moving armature 5, To close the passage of the gas.

The electromagnet 2 has a substantially U-shaped core 7 formed by two arms 7a and 7b attached to each other through a base 7c, a reel 10 inserted into the core 7, (10). The reel 10 is inserted into one of the arms 7a, 7b of the core 7. The core 7 and the moving armature 5 are made of a ferromagnetic material known in the art. The characteristics of both elements are well known in the art and are not described in detail below.

In addition, the electromagnetic valve 1 comprises a support 6 for the electromagnet 2. The support 6 is made of an electrically conductive material, preferably a metal material. The support portion 6 includes a housing 11 at one end thereof separated by a base 11b on which the core 7 is supported and the core 7 is partially housed in the housing 11. [

Figures 3-6 illustrate an assembly formed by the reel 10 and the winding section 8. The reel 10 is made of an elastic material, preferably plastic, and includes a base 12, a hollow tubular body 13 and a hollow tubular body 13 extending in a continuous and substantially orthogonal manner in the base 12, The winding section 8 is received between the coiled flange 11 and the base 12 on the tubular body 13, including the flange 11 at the free end of the tubular body 13. The winding section 8 includes a phase wire 8a configured to be fixed to the phase of the safety valve 1 and a ground wire 8b configured to be fixed to the ground of the safety valve 1.

The reel 10 further includes a part of a phase terminal 18 and a part of a ground terminal 19 that are fitted to the base 12 of the reel 10 and the phase terminal 8a to which the phase wire 8a is fixed, (20) of the phase terminal (18) forming the phase connector (25) of the safety valve (1) through the support (6) and the first end (14) And protrudes from the base 12. The first end portion 14 extends substantially perpendicular to the fitted portion of the phase terminal 18 and the second end portion 20 and the second end portion 20 extends substantially perpendicularly to the fitted portion of the phase terminal 18, Lt; / RTI > The reel 10 extends in a substantially orthogonal manner from the base 12 in the longitudinal direction of the valve 1 to form a protrusion 22 which insulates the second end 20 of the phase terminal 18 from the core 7, (21). The core 7 includes a hole 28 through the base 7c. The protrusion 21 of the reel 10 passes through the hole 28 through the base 7c of the core 7. The phase connector 25 is inserted into the sleeve 24 and alternately inserted into the support portion 6 to be concentric with the support portion 6. The second end 20 of the phase terminal 18 extends axially through the support 6 and the sleeve 24 and from the safety valve 1. The phase connector 25 is arranged substantially concentrically to the second end 20 and surrounds the second end 20 and is electrically connected to the second end 20. The phase connector 25 is configured to connect the phase of the safety valve 1, and in particular the valve 1, to a thermocouple, battery or the like capable of supplying energy to the electromagnet 2.

2, the first end 15 of the ground terminal 19 to which the ground wire 8b of the winding section 8 is fixed and the first end 15 of the ground terminal 19 fixed to the support section 6, And the two end portions 16 protrude from the base 12. [ The first end 15 extends substantially orthogonally to a portion of the ground terminal 19 that is fitted to the base 12. The second end 16 extends at an angle to the first end 15 and to a portion of the phase terminal 18 that is fitted to the base 12. The second end portion 16 is fixed to one end portion 6b of the support portion 6 and the end portion 6b of the support portion 6 is accommodated inside the casing 3. [ To this end, the second end 16 is adapted to the geometry of the end 6b of the support 6 and the side 16b is connected to the substantially cylindrical surface of the end 6b of the support 6 and the substantially cylindrical surface of the support 6 Which is adapted to be fixed to a stop surface 16a which is substantially perpendicular to the side surface 16b adapted to contact the transverse surface of the end portion 6b.

The phase terminal 18 and the ground terminal 19 are made of the same material and in one. The material must be weldable both by electrical welding and by plasma welding, and it must be hard enough not to deform. In one embodiment, the material is comprised of brass.

The fitted portions of the phase terminal 18 and the ground terminal 19 are arranged to be substantially aligned with respect to each other. The first end 14 of the phase terminal 18 and the first end 15 of the ground terminal 19 are substantially parallel to each other.

In addition, the reel 10 extends into the base 12 substantially in the longitudinal direction relative to the reel 10 and has a groove 17 for separating the fitted portions of the phase terminal 18 and the ground terminal 19 .

The reel 10 is manufactured by a plastic injection process. At the start, the phase terminal 18 and the ground terminal 19 are attached to each other to form a single terminal. An injection molding step for injecting the plastic with the single terminal partially received in the injection mold is carried out so that once the plastic is injected and the tubular body 13, the base 12 and the flange 11 are formed, 12 and the end portions 14, 15, 16 protruding from the base 12 are present. The cutting of the base 12 is then performed and the cutting is performed longitudinally with respect to the base 12 to separate the portion of the base 12 that is sandwiched between the base 12 and the base 12 into two pieces, (18) and the ground terminal (19). The two fitted portions correspond respectively to the fitted portions of the phase terminal 18 and the ground terminal 19 of the reel 10 obtained, and the portions of both are fitted so that they are insulated from each other.

The copper wire is wound on the reel 10 and the reel 10 is inserted into the core 7 and the phase wire 8a is fixed to the first end 14 of the phase terminal 18, The ground wire 8b is fixed to the first end 15 of the ground terminal 19. [ The phase wire 8a is fixed to the phase terminal 18 by welding.

The reel 10 is inserted into the branch portions 7a and 7b of the core 7 together with the winding portion 8 and the core 7 passes through the second end portion 20 of the phase terminal 18 Protrudes from the sleeve 24. The second end 20 is secured to the phase connector 25 of the safety valve 1 to maintain electrical continuity. Generally, the fixing is carried out by a welding process.

Finally, the second end portion 16 of the ground terminal 19 is fixed to the end portion 6b of the support portion 6, thereby maintaining electrical continuity. Generally, the fixing is carried out by a welding process.

Claims (6)

A gas safety valve applied to a cooking appliance, the valve comprising: a movable armature (5) coupled with an electromagnet (2), a support part (6) for the electromagnet (2) Movable and movable with respect to the electromagnet (2) between an open valve position at which energy is supplied and the moving armature (5) contacts the electromagnet (2) and a closed valve position at which the electromagnet Wherein said electromagnet includes a U-shaped core, a reel inserted into said core and a winding part supported on said reel; , Wherein the winding section (8) comprises a phase wire (8a) and a ground wire (8b)
The reel (10) ejects plastic with a single terminal partially received in an injection mold so that the plastic is ejected and a base (12) is formed in the reel (10) (14, 15, 16, 20) of said single terminal projecting from said base (12); And
The cutting of the base (12) comprises forming a groove (17) separating the fitted portion of the single terminal inside the base (12) into two fitting portions, (18) and a ground terminal (19), the two fitting portions corresponding to the fitted portion of the phase terminal (18) and the ground terminal (19), respectively, and the two fitting portions Each of which has a respective first end 14 and a second end 20 of the phase terminal 18 and a first end 15 and a second end 16 respectively of the ground terminal 19, ), Said cutting step comprising:
The reel 10 includes a part of a phase terminal 18 and a part of a ground terminal 19 that are fitted to the base 12 of the reel 10 and the phase terminal 8a to which the phase wire 8a is fixed The second end 20 of the phase terminal 18 forming the phase connector 25 of the valve through the support 6 and the ground wire 8b of the phase terminal 18, The first end 15 of the ground terminal 19 to be fixed and the second end 16 of the ground terminal 19 fixed to the support portion 6 protrude from the base 12,
The reel 10 extends into the base 12 in the longitudinal direction of the reel 10 to connect the fitted portion of the single terminal in the base 12 to the phase terminal 18 and the ground terminal 19. The gas safety valve according to claim 1, wherein the groove (17) is formed in the groove (17). The method according to claim 1,
Characterized in that the phase terminal (18) and the ground terminal (19) are made of the same material and in one. 3. The method according to claim 1 or 2,
Wherein the phase terminal (18) and the ground terminal (19) are made of brass. The method according to claim 1,
The phase terminals 18 and the fitted portions of the ground terminal 19 are aligned with each other and the first ends 14 and 15 for connection of the wires 8a and 8b of the winding section 8 Are arranged in parallel with one another and are orthogonal to the fitted portions of the phase terminal (18) and the ground terminal (19). delete The method according to claim 1,
Characterized in that the reel (10) comprises a protrusion (21) extending orthogonally from the base (12) to insulate the second end (20) of the phase terminal (18) against the core Gas Safety Valve.

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