CN209461324U - A kind of contact brake system of automatic transfer switching electric appliance - Google Patents

Abstract

The utility model discloses a kind of contact brake system of automatic transfer switching electric appliance, including moving contact, static contact and for installing moving contact, the shell of static contact, static contact includes two end of incoming cables static contacts and a leading-out terminal static contact, the moving contact is arranged in the middle position of the triangle surrounded by two end of incoming cables static contacts and a leading-out terminal static contact and can rotate around the center point of rotation of the triangle, moving contact includes that there are two the U-shaped folder slots for cooperating clamping conductive with static contact, the protrusion for cooperating clamping stop with the U-shaped folder slot of moving contact is provided on the shell, the protrusion is arranged on the motion path of moving contact and the circumferentially equidistant position between adjacent leading-out terminal static contact and end of incoming cables static contact.The utility model structure is simple and convenient to operate, and is increased the connection and breaking capacity of product, is improved its mechanical life and electrical endurance.

Description

A kind of contact brake system of automatic transfer switching electric appliance

Technical field

The utility model relates to a kind of contact brake system of automatic transfer switching electric appliance.

Background technique

The unit of many important places, important organ or particular/special requirement is such as: hospital, bank, market, fire department, needs Quantity-produced enterprise etc. does not allow power cut-off.In order to ensure continuously powering, be generally used automatic transfer switching electric appliance into Row power supply.

Currently, most PC grades of automatic transfer switching electric appliance is all that three positions are (i.e. common closing position, spare on the market Closing position, double quartiles are set) change-over switch generally includes moving contact, static contact, shell, executing agency and energy storage bullet Spring, moving contact include the U-shaped folder slot with static contact cooperation clamping, and executing agency's driving moving contact turns to common closing position Or when spare closing position, static contact is slid on the inside of the U-shaped folder slot of moving contact, and the two sides inner wall of U-shaped folder slot can be to stationary contact Capitiform is in close contact moving contact and static contact conductive at resilient clamp, and makes energy-stored spring energy storage simultaneously, and energy-stored spring is being released Moving contact can be driven to turn to double points of (disconnection) positions when energy.When turning to double quartiles and setting, moving contact is due to self inertia And energy-stored spring release can act under be easy to produce swing, position when stopping moving contact and normal double quartiles are equipped with partially Difference in turn results in opening away from reduction between dynamic/static contact, is unfavorable for the contact arc-extinguishing of product in this way, in addition can also reduce the machine of product Tool service life and electric life.Once circuit generates high current, product contact when connecting disjunction can be burnt, and power supply interruption etc. is caused to use Electric problem, causes heavy losses.

Utility model content

In view of the deficiencies of the prior art, the utility model provides a kind of contact brake system of automatic transfer switching electric appliance System, structure are simple and convenient to operate, increase the connection and breaking capacity of product, improve its mechanical life and electrical endurance.

To achieve the above object, the utility model provides a kind of contact brake system of automatic transfer switching electric appliance, packet Include moving contact, static contact and the shell for installing moving contact, static contact, static contact include two end of incoming cables static contacts and One leading-out terminal static contact, the moving contact, which is arranged in, to be surrounded by two end of incoming cables static contacts and a leading-out terminal static contact The middle position of triangle can simultaneously be rotated around the center point of rotation of the triangle, and moving contact includes that there are two cooperate with static contact Conductive U-shaped folder slot is clamped, moving contact can be selectively quiet to one of end of incoming cables static contact and leading-out terminal by rotating Contact is conductively connected, and the protrusion for cooperating clamping stop with the U-shaped folder slot of moving contact is provided on the shell, which sets Set the circumferentially equidistant position on the motion path of moving contact and between adjacent leading-out terminal static contact and end of incoming cables static contact.

By adopting the above technical scheme the advantages of, is: since protrusion is arranged on the motion path of moving contact, when moving contact exists Energy-stored spring is released when can be rotated by open position, and U-shaped folder slot is inserted into raised two sides with moving contact rotation, is based on U The resilient clamping force that type clip slot two sides inner wall gives protrusion enables moving contact to be stopped at raised position, and moving contact will not be due to used Property continue rotate and shake.Due to the raised circumferentially equidistant position between adjacent leading-out terminal static contact and end of incoming cables static contact Set, make to have between moving contact and static contact it is biggish open increase away from, the more conducively contact arc-extinguishing of product the connection of product with point Cutting capacity improves its mechanical life and electrical endurance.

The protrusion is for two and U-shaped with two of the moving contact respectively as a further improvement of the utility model, Clip slot cooperates clamping stop, described two circumferential two sides for being symmetricly set on the leading-out terminal static contact of protrusion simultaneously.

By adopting the above technical scheme the advantages of is: two protrusions can match simultaneously co-clip with two U-shaped folder slots of moving contact Stop is held, the stopping effect to moving contact is improved.

The shell includes base enclosure, is separately mounted to base enclosure upper and lower ends as a further improvement of the utility model, The upper cover and bottom plate at place, moving contact and static contact are arranged inside base enclosure, described two protrusions be shaped in respectively upper cover with It include for the through-hole inside protrusion insertion base enclosure on bottom plate, at base enclosure upper and lower ends.

By adopting the above technical scheme the advantages of, is: easily protrusion can be inserted into base enclosure by upper cover and bottom plate Corresponding position, convenient for the dismounting of protrusion.

The upper cover and bottom plate are made of 6 material of nylon list as a further improvement of the utility model, the base enclosure It is made of thermosetting material.

By adopting the above technical scheme the advantages of is: thermosetting material has many advantages, such as that high temperature resistant, resistance to electric arc, material are cheap. 6 material of nylon list then has many advantages, such as wear-resisting, good toughness, not easily broken.Shell is made of two kinds of materials, incorporates the excellent of the two Point makes cooperating stop with moving contact with the integrally formed protrusion of upper cover and bottom plate on the basis of guaranteeing base enclosure security performance Shi Burong easy fracture has preferable durability, extends service life.

In the form of sheets, raised two sides have narrow portion to the protrusion as a further improvement of the utility model,.

By adopting the above technical scheme the advantages of, is: the inside convenient for protrusion guiding to be inserted into U-shaped folder slot.

Detailed description of the invention

Fig. 1 is the structure chart of the utility model embodiment；

Fig. 2 is the explosive view of the utility model embodiment；

Fig. 3 is the top view of the utility model embodiment；

Fig. 4 is in Fig. 3 along the cross-sectional view of line B-B (when moving contact is in common closing position)；

Fig. 5 is in schematic diagram when spare closing position for moving contact in Fig. 4；

Fig. 6 is partial sectional view when the utility model embodiment moving contact is set in double quartiles；

Fig. 7 is the enlarged drawing of part A in Fig. 2.

Specific embodiment

A kind of embodiment of the contact brake system of automatic transfer switching electric appliance of the utility model is as shown in figs. 1-7: including Moving contact 3, static contact and the shell 1 for installing moving contact 3, static contact, moving contact 3 is by executing agency's (not shown) And the driving rotation of energy-stored spring (not shown), static contact include that two end of incoming cables static contacts 21 and a leading-out terminal are quiet Contact 22, two end of incoming cables static contacts 21 are arranged in shell 1 side and in distributions up and down, and leading-out terminal static contact 22 is arranged outside The other side in shell 1, the setting of moving contact 3 are surrounded by two end of incoming cables static contacts 21 and a leading-out terminal static contact 22 Triangle middle position and can be rotated around the center point of rotation 4 of the triangle, moving contact 3 include there are two and static contact The conductive U-shaped folder slot 31 of cooperation clamping, moving contact 3 can be by rotating selectively to one of 21 He of end of incoming cables static contact Leading-out terminal static contact 22 is conductively connected.Executing agency's driving moving contact 3 turns to common closing position (shape as shown in Figure 4 State) or when spare closing position (state as shown in Figure 5), one of end of incoming cables static contact 21 and leading-out terminal static contact 22 are simultaneously It is inserted into 31 inside of U-shaped folder slot of moving contact 3, the two sides inner wall of U-shaped folder slot 31 can form resilient clamp to static contact, make this End of incoming cables static contact 21 and leading-out terminal static contact 22 can be conductively connected, and make energy-stored spring energy storage simultaneously, and energy-stored spring is being released Moving contact 3 can be driven to turn to double points (disconnection) position (state as shown in Figure 6) when energy.It is provided with and moves on the shell 1 The protrusion 14 of the cooperation clamping stop of U-shaped folder slot 31 of contact 3, the protrusion 14 are arranged on the motion path of moving contact 3 and are located at Circumferentially equidistant position between adjacent leading-out terminal static contact 22 and end of incoming cables static contact 21 (i.e. double quartiles are set).Moving contact 3 it is U-shaped When clip slot 31 is turned at protrusion 14 with moving contact 3, protrusion 14 is inserted into 31 inside of U-shaped folder slot, is given based on U-shaped folder slot 31 The resilient clamping force for giving protrusion 14, enables moving contact 3 to slow down and positions, but executing agency still is able to 3 turns of moving contact of driving It is dynamic to make protrusion 14 and deviate from from U-shaped folder slot 31.

Described raised 14 are two and cooperate clamping stop, institute simultaneously with two U-shaped folder slots 31 of the moving contact 3 respectively State the circumferential two sides for being symmetricly set on the leading-out terminal static contact 22 of two protrusions 14.

The upper cover 12 and bottom plate 13 that the shell 1 includes base enclosure 11, is separately mounted at 11 upper and lower ends of base enclosure move touching First 3 and static contact be arranged inside base enclosure 11, described two raised 14 are shaped in respectively in upper cover 12 and bottom plate 13, base enclosure It include for the through-hole 111 inside 14 insertion base enclosure 11 of protrusion at 11 upper and lower ends, upper cover 12 and bottom plate 13 can pass through buckle Or the modes such as screw are connected and fixed with base enclosure 11.

The upper cover 12 and bottom plate 13 are made of 6 material of nylon list, and the base enclosure 11 is made of thermosetting material.Nylon Single 6 materials can guarantee the robustness of protrusion 14, not allow easy fracture when cooperating stop with moving contact 3.And thermosetting material It can then prevent base enclosure 11 from melting or by arc through.

Described raised 14 in the form of sheets, and raised 14 two sides have narrow portion 141, and narrow portion 141 is inserted into U-shaped conducive to 14 guiding of protrusion 31 inside of clip slot.

It should be noted that due in automatic transfer switching electric appliance moving contact and static contact be generally four groups, and respectively The ABCN phase of corresponding product.Four groups can also be accordingly set as positioned at upper cover and bottom plate protrusion 14, it can be simultaneously to each moving contact Stop is carried out when disconnection, improves stopping effect.

Above example, only one kind of the utility model preferably specific example, those skilled in the art are practical new at this The usual variations and alternatives carried out in type technical proposal scope are included in the protection scope of the utility model.

Claims (5)

1. a kind of contact brake system of automatic transfer switching electric appliance, including moving contact, static contact and for install moving contact, The shell of static contact, static contact include two end of incoming cables static contacts and a leading-out terminal static contact, the moving contact setting The triangle surrounded by two end of incoming cables static contacts and a leading-out terminal static contact middle position and can be around the triangle The rotation of the center point of rotation, moving contact includes there are two the U-shaped folder slot for cooperating clamping conductive with static contact, and moving contact can pass through Rotation is selectively conductively connected one of end of incoming cables static contact and leading-out terminal static contact, it is characterised in that: described The protrusion for cooperating clamping stop with the U-shaped folder slot of moving contact is provided on shell, which is arranged in the motion path of moving contact It goes up and is located at circumferentially equidistant position between adjacent leading-out terminal static contact and end of incoming cables static contact.

2. a kind of contact brake system of automatic transfer switching electric appliance according to claim 1, it is characterised in that: described convex Clamping stop is played as two and cooperates simultaneously with two U-shaped folder slots of the moving contact respectively, described two protrusions are circumferential symmetrical The two sides of the leading-out terminal static contact are set.

3. a kind of contact brake system of automatic transfer switching electric appliance according to claim 2, it is characterised in that: described outer The upper cover and bottom plate that shell includes base enclosure, is separately mounted at base enclosure upper and lower ends, moving contact and static contact are arranged in base enclosure Portion, described two protrusions are shaped on upper cover and bottom plate respectively, include to be inserted into base enclosure for protrusion at base enclosure upper and lower ends Internal through-hole.

4. a kind of contact brake system of automatic transfer switching electric appliance according to claim 3, it is characterised in that: on described Lid and bottom plate is made of 6 material of nylon list, and the base enclosure is made of thermosetting material.

5. a kind of contact brake system of automatic transfer switching electric appliance according to claim 1 or 2 or 3 or 4, feature exist In: in the form of sheets, raised two sides have narrow portion to the protrusion.