CN201392748Y

CN201392748Y - Motor-type soft start switch

Info

Publication number: CN201392748Y
Application number: CN200920302264U
Authority: CN
Inventors: 翁良轩
Original assignee: JIANGMEN BOSJOB CO Ltd
Current assignee: JIANGMEN BOSJOB CO Ltd
Priority date: 2009-04-16
Filing date: 2009-04-16
Publication date: 2010-01-27
Anticipated expiration: 2019-04-16

Abstract

The utility model discloses a motor-type soft start switch, which comprises a switch box and a box cover, wherein a connecting terminal for a power incoming line, an auxiliary connecting terminal for a power outgoing line and a main connecting terminal for the power outgoing line are arranged at the bottom of the switch box; a toggle switch and a self-resetting pressing down switch are arranged at the top of the switch box; the stationary contact of the toggle switch is connected with the main connecting terminal, and the moving contact is connected with the connecting terminal for the power incoming line; and the stationary contact of the pressing down switch is connected with the auxiliary connecting terminal, and the moving contact is connected with the connecting terminal for the power incoming line. Due to the utilization of mechanical switches, the devices used are reduced in number, and the soft start switch has the advantages of simple integral structure, high reliability, convenience for mass production and assembly, capability of reducing cost, better adaptability to ambient temperature, electromagnetism interference and mounting space, long service life, and capability of being used on electric equipment started by strong current.

Description

Motor type soft start switch

Technical field

The utility model relates to a kind of motor type soft start switch, particularly a kind ofly is used for preventing on the power consumption equipment or reduces it producing the motor type soft start switch that moment crosses great start-up current.

Background technology

On power consumption equipment, use the common power switch to cause the electrical network tripping operation easily such as big current starts such as electric welding machines, the contact sintering that perhaps causes switch easily together, damage equipment even initiation security incident, for this reason, people have designed soft start switch and have addressed the above problem.The soft start switch that generally uses adopts electronic circuit control at present, its principle as shown in Figure 1, series resistance or on power line such as the temperature-sensitive element of PTC class, by the relevant detection delay circuit, the adhesive of control relay contact and release, the function of realization limiting starting current.Because above-mentioned switch need use more electronic devices and components, its complex circuit, global reliability decreases, and, the complex procedures of producing this switch, cost is higher.

The utility model content

In order to address the above problem, the purpose of this utility model be to provide a kind of simple in structure, reliability is high and motor type soft start switch cheaply.

The technical scheme that the invention for solving the technical problem adopted is:

A kind of motor type soft start switch, comprise switch enclosure and lid, wherein, the switch enclosure bottom is provided with electric power incoming line binding post, accessory power supply outlet binding post and main power source outlet binding post, the switch enclosure top is provided with toggle switch and resets certainly and presses down switch, wherein, the fixed contact of toggle switch links to each other with the main electrical scheme terminal, and its moving contact links to each other with the electric power incoming line binding post; The fixed contact that compresses switch links to each other with the auxiliary connection terminal down, and its moving contact links to each other with the electric power incoming line binding post.

As further improvement of the utility model, the locking mechanism of the position that compresses switch under the described toggle switch and the close mutually side that compresses switch down are provided with and are used for keeping when pressed status.

The beneficial effects of the utility model are: owing to adopted mechanical switch, employed number of devices is few, thereby overall structure is simple, reliability is high, be convenient to produce in enormous quantities and assembling, can effectively reduce cost, simultaneously, adaptability to ambient temperature, electromagnetic interference and installing space is better, life-span is long, can be operated in steadily in the long term on the power consumption equipment of big current start, is particularly useful for present various electric welding equipment.In addition, described locking mechanism is restricted to the design's soft start switch must press down earlier and compresses switch and keep could operating toggle switch after the pressed status, can effectively prevent misoperation, avoids damage equipment and switch itself.

Description of drawings

The utility model is described in further detail below in conjunction with drawings and Examples.

Fig. 1 is the circuit theory diagrams of existing electronic type soft start switch;

Fig. 2 is a perspective view of the present utility model;

Fig. 3 is a cutaway view of the present utility model;

Fig. 4 is the structural representation of the utility model under closure state.

Embodiment

With reference to Fig. 2～Fig. 4, a kind of motor type soft start switch, comprise switch enclosure 1 and lid 4, wherein, switch enclosure 1 bottom is provided with electric power incoming line binding post 6, accessory power supply outlet binding post 5 and main power source outlet binding post 7, and switch enclosure 1 top is provided with toggle switch 2 and resets certainly and presses down switch 3, wherein, the fixed contact 25 of toggle switch 2 links to each other with main electrical scheme terminal 7, and its moving contact 24 links to each other with electric power incoming line binding post 6; 3 the fixed contact 36 of compressing switch down links to each other with auxiliary connection terminal 5, and its moving contact 35 links to each other with electric power incoming line binding post 6.Simultaneously, the locking mechanism of 3 positions compresses switch under described toggle switch 2 and the 3 close mutually sides that compress switch down are provided with and are used for keeping when pressed status, wherein, described locking mechanism comprises the latch 27 that is positioned on the toggle switch 2 and is positioned at the bayonet socket 381 of 3 boss, 38 upper surfaces that compress switch down that the cross section of the two is triangular in shape.Can be connected resistance or PTC class temperature-sensitive element between described accessory power supply outlet binding post 5 and the main power source outlet binding post 7 and form auxiliary starting circuit, when operating the design's soft start switch, press down earlier and compress switch after 3, moving contact 35 contacts with fixed contact 36, auxiliary starting circuit is communicated with, and forms less starting current in the loop; When under keeping, compressing switch 3 pressed status, pull toggle switch 2 to the left and latch 27 is snapped in the bayonet socket 381, under compress switch and 3 promptly be locked in pressed status, at this moment, moving seesaw-type moving contact 24 contacts with corresponding fixed contact 25, main circuit is connected, and start-up course is finished, and equipment enters normal operating conditions.Described locking mechanism is restricted to the design's soft start switch must press down earlier and compresses switch 3 and keep could operating toggle switch 2 after the pressed status, can effectively prevent misoperation, avoids damage equipment and switch itself.With the shaped design of latch 27 and bayonet socket 381 is that leg-of-mutton purpose is, when the needs cut-off switch, directly pull toggle switch 2 and just can disconnect two groups of contacts of main auxiliary simultaneously, 3 pull toggle switch 2 again and needn't press down earlier to compress switch, thus more convenient when using.Certainly, the shape of described latch 27 and bayonet socket 381 also can be the U-shaped, quadrangle or other shapes that tilt.

As preferred version of the present utility model, described toggle switch 2 comprise with switch enclosure 1 through rotating shaft 21 hinged stir handle 22, stir handle 22 lower ends and be connected with spring 23, the other end of spring 23 links to each other with moving seesaw-type moving contact 24 on being hinged on electric power incoming line binding post 6, wherein, described spring 23 1 ends are positioned at the counterbore 26 of toggle switch 2 lower surfaces, and the other end is socketed on the column 241 of moving seesaw-type moving contact 24 upper surfaces.The thrust of utilizing the deformation of spring to produce has the characteristics of sudden change, the closing of contact and when opening speed fast, thereby reduce contact electric arc, avoid that contact sintering influence is normal to be disconnected, overall structure is simple and reliable.

In addition, described compressing switch down 3 comprises the outer depression bar 34 that is exposed at switch enclosure 1 top of part, and depression bar 34 lower ends are connected with the moving contact 35 that can move up and down with depression bar; Depression bar 34 is positioned at switch enclosure 1 and is provided with boss 38 with the side near toggle switch 2, be connected by spring 37 elasticity between boss 38 lower ends and the switch enclosure 1, wherein, described depression bar 34 inside are provided with counterbore 342, column moving contact 35 is installed in the counterbore 342, its upper end socket spring 33, the other end of spring 33 links to each other with limited screw 32, and the top of limited screw 32 is provided with depression bar loam cake 31.Spring 33 can be regulated the pressure between moving contact and the fixed contact automatically, prevents loose contact, and depression bar loam cake 31 is detachable, and the convenient limited screw 32 of regulating is to change the length of spring 33, and the depression bar contact also can reliably contact when guaranteeing long-term the use.

Can install comparatively easily and manage when using a plurality of switch at the same time, quick-assembling hole 41 when described lid 4 sides are provided with and are used for a plurality of switch combinations and use, in addition, described upper end of stirring handle 22 and depression bar 34 is equipped with the through hole 221,341 that is used to install universal driving shaft, realize the function of a plurality of switch combination interlocks, simple and reliable for structure.

Certainly; the utility model is created and is not limited to above-mentioned execution mode; for example toggle switch 2 can adopt lever mechanism to realize the contact break-make, as long as it reaches technique effect of the present utility model with essentially identical means, all should belong to protection range of the present utility model.

Claims

1. motor type soft start switch, comprise switch enclosure (1) and lid (4), it is characterized in that: switch enclosure (1) bottom is provided with electric power incoming line binding post (6), accessory power supply outlet binding post (5) and main power source outlet binding post (7), switch enclosure (1) top is provided with toggle switch (2) and resets certainly and presses down switch (3), wherein, the fixed contact (25) of toggle switch (2) links to each other with main electrical scheme terminal (7), and its moving contact (24) links to each other with electric power incoming line binding post (6); The fixed contact (36) of (3) of compressing switch down links to each other with auxiliary connection terminal (5), and its moving contact (35) links to each other with electric power incoming line binding post (6).

2. motor type soft start switch according to claim 1 is characterized in that: the latching device of (3) position that compresses switch under the described toggle switch (2) and (3) the close mutually side that compresses switch down are provided with and are used for keeping when pressed status.

3. motor type soft start switch according to claim 2, it is characterized in that: described snap close structure comprises the latch (27) that is positioned on the toggle switch (2) and is positioned at the card (381) that (3) boss (38) upper surface that compresses switch down matches that the cross section of the two is triangular in shape.

4. motor type soft start switch according to claim 1, it is characterized in that: described toggle switch (2) comprise with switch enclosure (1) through rotating shaft (21) hinged stir handle (22), stir handle (22) lower end and be connected with spring (23), the other end of spring (23) links to each other with moving seesaw-type moving contact (24) on being hinged on electric power incoming line binding post (6).

5. motor type soft start switch according to claim 4 is characterized in that: described spring (23) one ends are positioned at the counterbore (26) of toggle switch (2) lower surface, and the other end is socketed on the column (241) of moving seesaw-type moving contact (24) upper surface.

6. motor type soft start switch according to claim 1 is characterized in that: described compress switch down (3) comprise the outer depression bar (34) that is exposed at switch enclosure (1) top of part, and depression bar (34) lower end is connected with the moving contact (35) that can move up and down with depression bar; Depression bar (34) is positioned at switch enclosure (1) being provided with boss (38) near a side of toggle switch, is connected by spring (37) elasticity between boss (38) lower end and the switch enclosure (1).

7. motor type soft start switch according to claim 6, it is characterized in that: described depression bar (34) inside is provided with counterbore (342), column moving contact (35) is installed in the counterbore (342), its upper end socket spring (33), the other end of spring (33) links to each other with limited screw (32), and the top of limited screw (32) is provided with depression bar loam cake (31).

8. motor type soft start switch according to claim 1 is characterized in that: the quick-assembling hole (41) when described lid (4) side is provided with and is used for a plurality of switch combinations and uses.

9. according to claim 1 or 8 described motor type soft start switch, it is characterized in that: described upper end of stirring handle (22) and depression bar (34) is equipped with the through hole (221,341) that is used to install universal driving shaft.