CN202454963U - Protective device and switchgear - Google Patents

Abstract

The utility model relates to an overlapping protective shutter device which is used for electrical equipment. The overlapping protective shutter device is used for exposing or preventing shutters from being close to an electrical contact of a switchgear. The overlapping protective shutter device comprises a connecting component which is connected with a shell and comprises a first driving arm and a second driving arm. A guiding component is connected with the shell and comprises a first end part, a second end part and a main body which is connected with the first end part and the second end part. The device also comprises a first shutter which is connected with the first driving arm of the connecting component and the main body of the guiding component. The first shutter is constructed in a manner of selectively moving along the main body. The second shutter is connected with a second driving arm of the connecting component and the main body of the guiding component and comprises an upper plate and a lower plate. The lower plate is connected with the upper plate. The lower plate and the lower plate are constructed into a first position selectively moving along the main body to expose the electric contact and a second position preventing the shutters from being close to the electrical contact.

Description

Protective device and switching device

Technical field

Embodiment described herein relates generally to shield (shutter) device that is used for switching device (switchgear) housing; And more specifically, relate to and be used for preventing method and apparatus near the voltage circuit terminal in the switching device housing through overlapping protection shield device.

Background technology

In the structure of the switching device housing of known extraction type, the removable electric contact of circuit breaker is installed in the insulating case.This insulating case extends in the insulated tube in the end openings that is installed in related switching device housing, is arranged in the stationary electrical contacts in the insulated tube with joint.In order to protect the personnel that the switching device housing carries out operation and maintenance that get into, when circuit breaker when normal operating position removes, known shield is used to close the opening of insulated tube.

The tradition shield triggers through circuit breaker being moved into and move out the switching device housing.When circuit breaker moves in the housing, known shield move to the top of stationary electrical contacts or below, to expose stationary electrical contacts.When circuit breaker moves out housing when breaking off with switching device, known shield moves to prevent the electric contact near switching device.Yet traditional shield is not the compact switching device configuration sizing of multilayer.

The utility model content

In one aspect, be provided for exposing and preventing protective screen device near the electric contact of switching device.This device comprises the tie-in module that is connected to housing, and wherein, tie-in module comprises first actuating arm and second actuating arm.Guidance set is connected to housing, and wherein, guidance set comprises first end, the second end and the guide body that connects first end and the second end.This device also comprises first shield, and it is connected to first actuating arm of tie-in module and the guide body of guidance set.First shield is configured to move along the guide body selectivity.Second shield is connected to second actuating arm of tie-in module and seeking to main body of guidance set, and wherein, second shield comprises lower plate and upper plate.Lower plate is connected to upper plate, and wherein, lower plate and upper plate are configured to move to the primary importance that is configured to expose electric contact and be configured to prevent the second place near electric contact along the guide body selectivity.

On the other hand, be provided for exposing and preventing switching device near the electric contact of switching device.Device comprises housing, the rear wall that it has top, bottom, sidewall and top and bottom are linked together.Rear wall comprises a plurality of end openings that limit through wherein.Tie-in module is configured to be connected to housing, and wherein, tie-in module comprises first actuating arm and second actuating arm.Guidance set is connected to housing, and wherein, guidance set comprises first end, the second end and the guide body that connects first end and the second end.This device also comprises first shield, and it is connected to first actuating arm of tie-in module and the guide body of guidance set.First shield is configured to move along the guide body selectivity.Second shield is connected to second actuating arm of tie-in module and the guide body of guidance set, and wherein, second shield comprises lower plate and upper plate.Lower plate is connected to upper plate, and wherein, lower plate and upper plate are configured to move to the primary importance that is configured to expose electric contact and be configured to prevent the second place near electric contact along the guide body selectivity.

Description of drawings

Fig. 1 illustrates switching device and the front view that is connected to the demonstration shield assembly of switching device, and wherein the shield assembly is directed at the primary importance place.

Fig. 2 illustrates switching device and another front view that is connected to the shield assembly shown in Figure 1 of switching device, and wherein the shield assembly is directed at second place place.

Fig. 3 illustrates the side elevation view near the circuit breaker of switching device location shown in Figure 1.

Fig. 4 illustrates switching device and at the perspective view of the shield assembly shown in the second place.

Fig. 5 illustrates switching device and at another perspective view of the shield assembly shown in the primary importance.

Fig. 6 is the positive partial view of first shield of the shield assembly shown in Fig. 4 and Fig. 5.

Fig. 7 is the front view of second shield of the shield assembly shown in Fig. 4 and Fig. 5.

Fig. 8 is illustrated in the sketch map of another demonstration shield assembly shown in the primary importance.

Fig. 9 illustrates as shown in Figure 8 and at another sketch map of the shield assembly shown in the second place.

Figure 10 illustrates the example flow chart of control near the method for switching device as shown in Figure 1.

List of parts

10 switching devices

12 shield assemblies

14 primary importances

16 second places

18 housings

20 tops

22 bottoms

24 sidewalls

26 rear walls

28 cavitys

30 inboards

32 tops

34 bottoms

36 sides

38 stacking configurations

40 end openings

R1 end openings descending

R2 end openings up

42 circuit breakers

44 housings

46 front sides

48 rear sides

50 sidewalls

52 take turns

54 covers

56 electric contacts (circuit breaker)

58 electric contacts (switching device)

60 insulated tubes

62 power conductors

64 guide assemblies

66 tracks

68 tie-in modules

70 first carriage assemblies

72 second carriage assemblies

74 actuator member

76 biasing members

78 connecting arms

80 pivotal arms

82 pivotal pins

84 first actuating arms

86 ends

88 drive pins

90 connecting arms

92 pivotal arms

94 pivotal pins

96 second actuating arms

97 ends

98 pin openings

100 guidance sets

102 guiding partss

104 first ends

106 the second ends

108 guide bodies

110 strutting pieces

112 strutting piece openings

116 first shields

118 second shields

120 plates

122 front sides

126 flanges (first shield)

128 first ends

130 the second ends

132 sidewalls

134 guide openings

136 pin openings

138 lower plates (second shield)

140 upper plates (second shield)

141 front sides

142 upper flanges

144 first ends

146 the second ends

148 sidewalls

150 slits

152 axis

154 support arms

156 front sides

158 sides

160 rear sides

162 lower flanges

164 first ends

166 the second ends

168 sidewalls

170 slit pins

172 shield assemblies

174 first shields

176 second shields

178 lower plates

180 upper plates

182 lower plates

184 upper plates

1012 receive circuit breaker

1014 move tie-in module

1016 move the shield assembly to the enable possition

1018 move the shield assembly lower plate with overlapping and contact upper plate

1020 connect circuit breaker to switching device

1022 from switching device separation circuit breaker

1024 move lower plate and upper plate to make position from the lap position

Embodiment

Fig. 1 illustrates the front view of switching device 10 and demonstration shield assembly 12, and wherein shield assembly 12 is directed at primary importance 14 places.Shield assembly 12 is shown in the primary importance 14 of the mode of operation of expression switching device 10.Fig. 2 illustrates switching device 10 and another front view that is connected to the shield assembly 12 of switching device 10, and wherein shield assembly 12 is directed at the second place 16 places.Shield assembly 12 is shown in the second place 16 of the non-operating state of expression switching device 10.

Switching device 10 comprise have top 20, bottom 22 and connect top 20 and the housing 18 of the opposition sidewall 24 of bottom 22.Housing 18 also comprises the rear wall 26 that is connected to top 20, bottom 22 and sidewall 24.Housing 18 limits cavity 28 therein.Rear wall 26 comprises the inboard 30 that is oriented in the face of cavity 28.

Each sidewall 24 comprises top 32, bottom 34 and the side 36 that connects top 32 and bottom 34.The height of the sidewall of between top 32 and bottom 34, measuring 24 less than or approximate 950mm (about 37 inches) greatly.In an embodiment, this highly comprises the scope from about 250mm (about 10 inches) to about 750mm (about 30 inches).The top 20 of the housing of between sidewall 24, measuring 18 and the width of bottom 22 less than or approximate 950mm greatly.In an embodiment, the width of the top 20 of housing 18 and bottom 22 comprises the scope from about 250mm to about 750mm.Sizing to top 20, bottom 22 and the sidewall 24 of housing 18 is convenient to a plurality of housings 18 are stacked in the space, and this space is similar to basically and is the used space of single known switch device case (not shown).In example embodiment, top 20, bottom 22 and sidewall 24 sizings and shaped are to be the stacking configuration 38 that forms pair of shells 18 in the used space of single conventional switch device (not shown).

Rear wall 26 comprises at least one end openings 40 that limits through inboard 30.In example embodiment, rear wall 26 comprises a pair of capable R1, the R2 that the end openings 40 of basic horizontal is formed, and wherein each row R1, R2 have a plurality of end openings 40.Capable R1, R2 that end openings 40 is formed are spaced apart from each other in shared perpendicular, and wherein end openings 40 laterally is spaced apart from each other.Any amount of row and end openings 40 can be used for the operation of switching device 10.

Fig. 3 illustrates the side elevational view near the circuit breaker 42 of switching device 10 (shown in Figure 1) location.Circuit breaker 42 comprises housing 44, the sidewall 50 that it has front side 46, rear side 48 and connects front side 46 and rear side 48.Sidewall 50 comprises wheel 52, and it is configured to circuit breaker 42 moved into or moves out cavity 28 when being done the time spent by the power (not shown).Circuit breaker 42 comprises the insulating case 54 of at least one pair of basic horizontal, and wherein the insulating case 54 of every centering is spaced apart from each other in shared perpendicular, and wherein different right insulating case 54 laterally is spaced apart from each other.Electric contact 56 is arranged in respectively and overlaps in 54.Overlap 54 sizings and shaped so that the electric contact 56 of circuit breaker 42 is connected to the stationary electrical contacts 58 of switching device 10.

Each end openings 40 sizing, shaped and orientation are so that supports insulative pipe 60.Stationary electrical contacts 58 is arranged in each insulated tube 60 inside that is installed in the relevant terminal opening 40.Each stationary electrical contacts 58 is electrically connected to the power conductor 62 that is insulated pipe 60 electric insulations.

Fig. 4 illustrates switching device 10 and at the perspective view of the shield assembly 12 shown in the second place 16.Fig. 5 illustrates switching device 10 and at another perspective view of the shield assembly 12 shown in primary importance 14 places.In an embodiment, primary importance 14 is configured to expose at least one end openings 40, to allow near the end openings 40 that is exposed.In addition, in an embodiment, the second place 16 is configured to cover at least one end openings 40, to prevent near the end openings 40 that is covered.Described in this article primary importance 14 places, shield assembly 12 is configured to allow circuit breaker 42 to be connected to switching device 10, is used for the mode of operation of switching device 10.The described in this article second place 16 places, shield assembly 12 is configured to prevent that circuit breaker 42 is connected to switching device 10.

Switching device 10 also is included in the guide assembly 64 that the position near the bottom 22 of housing 18 connects with each sidewall 24.Guide assembly 64 comprises guide rail or the track 66 that is provided with along each sidewall 24.Guide assembly 64 is attached to the wheel 52 of circuit breaker 42, so that circuit breaker 42 is moved back and forth into or move out housing cavity 28.

Switching device 10 also comprises the tie-in module 68 that is attached to each sidewall 24.Tie-in module 68 is configured to be convenient to the mode of operation manipulate shield assembly 12 at switching device 10.Tie-in module 68 comprises first carriage assembly 70, second carriage assembly 72, actuator member 74 and biasing member 76.Actuator member 74 is connected to first carriage assembly 70 and second carriage assembly 72.Actuator member 74 is configured to convert the linear movement that circuit breaker 42 moves along track 66 to first carriage assembly 70 that gives described in this paper and the torque of second carriage assembly 72.Biasing member 76 is configured to remove the power time shift acting actuator parts 74 that are applied to actuator member 74 when circuit breaker 42.Described in this paper, any tie-in module can be used for linear movement converted to and rotatablely moves.

First carriage assembly 70 comprises the connecting arm 78 that is connected to actuator member 74.First carriage assembly 70 also comprises the pivotal arm 80 that is connected to connecting arm 78.First actuating arm 84 is connected to pivotal arm 80 pivotally around pivotal pin 82.First actuating arm 84 comprises the end 86 with drive pin 88.

Second carriage assembly 72 comprises the connecting arm 90 that is connected to actuator member 74.Second carriage assembly 72 also comprises the pivotal arm 92 that is connected to connecting arm 90.Second actuating arm 96 is connected to pivotal arm 92 pivotally around pivotal pin 94.Second actuating arm 96 comprises the end 97 with pin opening 98.

Switching device 10 also comprises the guidance set 100 that is connected to rear wall 26.Guidance set 100 comprises guiding parts 102, the guide body 108 that it has first end 104, the second end 106 and connects first end 104 and the second end 106.A plurality of strutting pieces 110 are configured to guiding parts 102 is installed to rear wall 26.Each strutting piece 110 comprises strutting piece opening 112, and its sizing and shaped are with the part around guide body 108.In example embodiment, strutting piece 110 is installed in guiding parts 102 basic contiguous housing sidewall 24 ground on the rear wall 26, so that contiguous housing bottom 22 is provided with first end 104 and is convenient to contiguous case top 20 the second end 106 is set.Strutting piece 110 can comprise any configuration so that guide body 108 is installed to rear wall 26.

Shield assembly 12 is configured to connect with tie-in module 68 and connect with guidance set 100.Shield assembly 12 is configured between the primary importance 14 and the second place 16, move back and forth.At primary importance 14 places, shield assembly 12 is convenient to circuit breaker 42 (Fig. 3) is connected to the electric contact 58 (Fig. 3) of switching device 10.When at the second place 16 places, shield assembly 12 prevents the electric contact 58 near switching device 10.

Shield assembly 12 comprises first shield 116 and second shield 118.First shield 116 is configured to prevent at the second place 16 places allow at primary importance 14 places to go R1 at least near end openings 40 near the R1 and being configured to of going at least of end openings 40.First shield 116 comprises plate 120, and it has in the face of the front side 122 of the cavity 28 of housing 18 and has the rear side (not shown) in the face of rear wall 26.Plate 120 has the size and dimension that prevents basically near the opening of electric terminals at least 40 of the capable R1 of rear wall 26.

Fig. 6 illustrates the preceding partial view of first shield 116 of Fig. 4 and shield assembly 12 shown in Figure 5.First shield 116 also comprises flange 126, and it is connected to front side 122 and 122 extends outwardly towards the cavity 28 of housing 18 from the front side.Flange 126 comprises first end 128, the second end 130 and the sidewall 132 that connects first end 128 and the second end 130.First end 128 comprises the guide openings 134 that limits through wherein with the second end 130.Guide openings 134 sizings and shaped are to center on the part 114 of the guide body 108 of guidance set 100 slippingly.Flange sidewall 132 also comprises the pin opening 136 that limits through wherein.Pin opening 136 sizings and shaped are to accept and to be connected to the drive pin 88 of first actuating arm 84 that is used for first carriage assembly 70.

At 16 places of the second place described in this paper, tie-in module 68 is configured to move first shield 116 to cover the end openings 40 of locating among the R1 that is expert at.At the second place 16 places, first shield 116 is configured to be convenient to prevent the end openings 40 near row R1.At primary importance as described herein 14 places, tie-in module 68 is configured to remove first shield 116 with exposed terminal opening 40 from the end openings 40 of row R1.At primary importance 14 places, first shield 116 is configured to be convenient to allow the end openings 40 near row R1.

Fig. 7 is the front view of second shield 118 of Fig. 4 and shield assembly 12 shown in Figure 5.Second shield 118 is connected to tie-in module 68 (shown in Figure 4) and is connected to guidance set 100.Second shield 118 is configured to prevent at the second place 16 places go R2 and be configured to allow at primary importance 14 places the capable R2 near end openings 40 at least near end openings 40.Second shield 118 comprises lower plate 138 and upper plate 140.Described in this paper, lower plate 138 is configured to reciprocally overlapping upper plate 140 and mobile upper plate 140.

Upper plate 140 has in the face of the front side 141 of the cavity 28 of housing 18 and in the face of the rear side (not shown) of rear wall 26.Upper plate 140 comprises and is connected to front side 141 and extends outwardly towards the upper flange 142 of housing cavity 28.Upper flange 142 comprises first end 144, the second end 146 and the sidewall 148 that connects first end 144 and the second end 146.First end 144 comprises the guide openings 134 that limits through wherein with the second end 146.Guide openings 134 sizings and shaped become the part 114 that centers on guide body 108 slippingly.

The sidewall 148 of upper flange 142 comprises the slit 150 that vertically is provided with along the axis 152 of flange 142.Slit 150 is between first end 144 and the second end 146.Upper flange 142 also comprises from upper flange outwardly and the support arm 154 that extends towards the sidewall of housing 18 24.At the second place 16 places, support arm 154 is configured to contact and lean against on the strutting piece 110 that is attached to sidewall 24.Strutting piece 110 is configured to keep upper plate 140 at the second place 16 places and makes upper plate 140 along guide body 108 suspensions.Upper plate 140 has the half at least size and dimension of end openings 40 that basic covering is used for the capable R2 of rear wall 26.In an embodiment, upper plate 140 sizings and shaped become to cover the top at least of the end openings 40 of row R2.In example embodiment, upper plate 142 sizings and shaped become to prevent the top at least near the end openings 40 of row R2.

Lower plate 138 has in the face of the front side 156 of housing cavity 18 with in the face of the rear side (not shown) of rear wall 26.Lower plate 138 is configured to overlapping upper plate 140 and moves upper plate 140 at primary importance 14 places.Lower plate 138 comprises and is connected to front side 156 and extends outwardly towards the lower flange 162 of housing cavity 28.Lower flange 162 comprises first end 164, the second end 166 and the sidewall 168 that connects first end 164 and the second end 166.First end 164 comprises the guide openings 134 that limits through wherein with the second end 166.Guide openings 134 sizings and shaped become the part 114 that centers on guide body 108 slippingly.

The sidewall 168 of lower flange 162 comprises from sidewall 168 outwardly and the slit pin 170 that extends towards the sidewall of housing 18 24.The securing member (not shown) is affixed to slit pin 170 on the lower flange 162.In example embodiment, securing member comprises clip.Any securing member that slit pin 170 is affixed on the flange 162 all can utilize on ground described in this paper.Slit pin 170 is connected to second actuating arm 96 (as shown in Figure 4) of second carriage assembly 72.Slit pin 170 sizings and shaped are so that extend through the slit 150 of upper plate 140 and lean against on the upper flange 142 of upper plate 140 at the second place 16 places.Lower plate 138 has the half at least size and dimension of electric terminals opening 40 that basic covering is used for the capable R2 of rear wall 26.In example embodiment, lower plate 138 sizings and shaped are with the lower part at least of the end openings 40 that covers capable R2.In example embodiment, lower plate 138 sizings and shaped are to prevent the lower part at least near the end openings 40 of row R2.

The described in this article second place 16 places, tie-in module 68 is configured to move second shield 118 to cover the end openings 40 of locating among the R2 that is expert at.At the second place 16 places, second shield 118 is configured to be convenient to prevent the end openings 40 near row R2.At 14 places of the primary importance described in this paper, tie-in module 68 is configured to remove second shield 118 from the end openings 40 of row R2, with exposed terminal opening 40.At primary importance 14 places, second shield 118 is configured to be convenient to allow the end openings 40 near row R2.In example embodiment, lower plate 138 is configured at primary importance 14 places and upper plate 140 overlapping basically.

Because lower plate 138 sizings, shaped and directed so that overlapping upper plate 140 and move along guide body 108 with upper plate 140 are so the top of the end openings 40 of the R2 that is expert at just needs less space so that lower plate 138 and upper plate 140 to be set at primary importance 14 places.In example embodiment, the space of the rear wall 26 below the end openings of the R1 that is expert at 40 is compared, and the overlapping configuration of lower plate 138 and upper plate 140 makes the space of rear wall 26 of end openings 40 tops of the R2 that is expert at reduce only about half of.Therefore, reduce the size of housing 18 so that realize the switching device configuration 38 (as shown in Figure 1) of compact, multilayer/pile up.

In the demonstration of switching device 10, circuit breaker 42 moves into housing cavity 28.The wheel 52 of circuit breaker 42 is convenient to running circuit breaker 42 on track 66, so that make the actuator member 74 of the front side 46 contact and connection assemblies 68 of circuit breaker 42.Actuator member 74 is configured to be convenient to move the connecting arm 78 of first carriage assembly 70.The connecting arm 78 of first carriage assembly 70 is in response to moving, around pivotal pin 82 rotations first actuating arm 84.In example embodiment, connecting arm 78 rotates to move first actuating arm 84 down down.

First actuating arm 84 that is connected to the plate 120 of first shield via drive pin 88 be configured to along guide body 108 down and away from the end openings 40 of row R1 the plate 120 of slippage first shield.Drive pin 88 moves the plate 120 of first shield near housing bottom 22, to expose the end openings 40 of row R1 at primary importance 14 places.The size of the plate 120 of first actuating arm 84 and first shield is arranged on the plate 120 of first shield between the end openings 40 of bottom 22 and row R1 of housing 18.At primary importance 14 places, the electric contact 56 of circuit breaker 42 is exposed to the electric contact 58 in the insulated tube 60.During the mode of operation of switching device 10, circuit breaker 42 continues to move to be connected to electric contact 58 to the electric contact 58 of switching device 10.

When circuit breaker 42 moved into housing 18, actuator arm 74 was configured to be convenient to move the connecting arm 90 of second carriage assembly 72.Connecting arm 90 is in response to moving around pivotal pin 94 rotations second actuating arm 96.In example embodiment, connecting arm 90 rotates to move second actuating arm 96 up up.Be connected to second actuating arm 96 of second shield 118 at slit pin 170 places, along guide body 108 up and away from the row R2 end openings 40 slippage lower plates 138.

Second actuating arm 96 is travelling slit pin 170 in the slit 150 of the upper flange 142 of upper plate 140 also.Because slit pin 170 moves in slit 150, so lower plate 138 is configured to move up and overlapping basically upper plate 140.In addition, because the overlapping basically upper plate 140 of lower plate 138, so the upper flange 142 of the lower flange 162 contact upper plates 140 on the lower plate 138.Second actuating arm 96 continues to move lower plate 138 so that the upper flange 142 of lifting upper plate 140 leaves strutting piece 110.Second actuating arm 96 moves lower plate 138 with the upper plate 140 of overlapping at least, and mobile lower plate 138 exceeds end openings 40 with upper plate 140.

Second actuating arm, 96 sizings are so that upper plate 140 and lower plate 138 are positioned at above the end openings 40 lap position below the top 20 with housing 18, with exposed terminal opening 40.At primary importance 14 places, the last electric contact 56 of circuit breaker 42 is exposed to the electric contact 58 in the insulated tube 60.During the mode of operation of switching device 10, circuit breaker 42 continues to move to be connected to electric contact 58 towards the electric contact 58 of switching device 10.

In the demonstration non-operating state of switching device 10, circuit breaker 42 breaks off and 58 moves out along track 66 from electric contact, with the electric contact 56 from electric contact 58 cut-off breakers 42 of switching device 10.When circuit breaker 42 when rear wall 26 is removed, circuit breaker 42 removes the pressure on the actuator arm 74 that is applied to tie-in module 68.Biasing member 76 is configured to actuator arm 74 pressurization so that remove actuator arm 74 from rear wall 26, so that the reverse operating of tie-in module 68.Actuator arm 74 is rotated the connecting arm 78 of first carriage assembly 70 up around pivotal pin 82, and this pivotal pin 82 moves first actuating arm 84 up.The plate 120 of first shield 116 is configured to along guide body 108 up and the place ahead slippage of the end openings 40 of the R1 that is expert at.At the second place 16 places, plate 120 is convenient to prevent near electric contact 58, so that reduce or eliminate to the exposure of electric contact 58 and/or from the electric arc of the electric contact 58 of switching device 10.

When circuit breaker 42 breaks off and when electric contact 58 was removed, actuator arm 74 was also rotated the connecting arm 90 of second carriage assembly 72 down around pivotal pin 94, this pivotal pin 94 moves second actuating arm 96 down.Second actuating arm 96 makes lower plate 138 along guide body 108 slippage down through slit pin 170.Slit pin 170 moves in the slit 150 of upper plate 140 down.Because the upper flange 142 at primary importance 14 place's upper plates 140 leans against on the lower flange 162 of lower plate 138, so upper plate 140 moves the strutting piece 110 that is connected to sidewall 24 up to upper flange 142 contacts of upper plate 140 down with lower plate 138.Strutting piece 110 contact support arms 154 are in the position of the end openings 40 of part covering row R2 at least to stop and supporting upper plate 140.In example embodiment, the upper plate 140 basic tops at least that cover the end openings 40 of row R2.In example embodiment, upper plate 140 is configured to prevent the end openings at least 40 near row R2.

When strutting piece 110 suspension upper plates 140 so that part covers the end openings 40 of row R1 at least, second actuating arm 96 continues to rotate with decline plate 138 through connecting with slit pin 170.Slit pin 170 moves in the slit 150 of the upper flange 142 of upper plate 140 down so that mobile lower plate 138 is in place at least partly to cover the end openings 40 of row R2.Slit pin 170 leans against the bottom of slit 150 with the suspension lower plate 138 at the second place 16 places.In an embodiment, the lower plate 138 basic lower parts that cover the end openings 40 of row R2.In example embodiment, lower plate 138 is configured to prevent the end openings at least 40 near row R2.

Fig. 8 is illustrated in the sketch map of another demonstration shield assembly 172 shown in the primary importance 14.Fig. 9 is illustrated in another sketch map of the shield assembly 172 shown in the second place 16.Shield assembly 172 comprises first shield 174 and second shield 176.First shield 174 comprises lower plate 178 and upper plate 180.Second shield 176 comprises lower plate 182 and upper plate 184.

First actuating arm 84 of first carriage assembly 70 (shown in Figure 2) is configured to be connected to lower plate 178 and lower plate 182.Second actuating arm 96 of second carriage assembly 72 (shown in Figure 2) is configured to be connected to upper plate 180 and upper plate 184.During the mode of operation of switching device 10, first actuating arm 84 moves in the primary importance 14 lower plate 170,180, and second actuating arm 96 moves in the primary importance 14 upper plate 182,184.At primary importance 14 places, the lower plate 182 of second shield 176 is configured to the upper plate 180 of overlapping first shield 174.Through overlapping plates 180,182, reduced by first shield 174 and second shield 176 travel distance, thereby be convenient to reduce the size of switching device housing (not shown) to primary importance 14.

Figure 10 is illustrated in during mode of operation and the non-operating state control near switching device, for example the example flow chart 1000 of the method 1010 of switching device 10 (shown in Figure 1).Method 1010 comprises: receive 1012 circuit breakers, for example circuit breaker 42 (shown in Figure 3); With mobile 1014 tie-in modules, for example tie-in module 68 (shown in Figure 4).Tie-in module moves 1016 shield assemblies, arrives primary importance, for example primary importance 14 (shown in Figure 6) such as shield assembly 12 (shown in Figure 4).In primary importance 14, the electric contact that exposes switching device is to be connected to circuit breaker.In example embodiment, move the shield assembly and comprise and move 1018 lower plates, lower plate 138 (shown in Figure 5) for example is with overlapping and contact upper plate, for example upper plate 140 (shown in Figure 5).Method 1010 comprise mobile lower plate/upper plate to the lap position to expose the electric contact of switching device.During the mode of operation of switching device, circuit breaker connects 1020 to switching device.

Method 1010 also comprises from electric contact and separates 1022 circuit breakers and remove circuit breaker from switching device.In response to removing of circuit breaker, tie-in module moves the shield assembly to the second place.In example embodiment, method comprises from the lap position and moves 1024 lower plates/upper plate to the second place, such as the second place 16 (as shown in Figure 4), to cover switching device, such as the electric contact of switching device 10.At second place place, the shield assembly prevents the electric contact near switching device.

Embodiment described in this paper is provided for the protective device of switching device.Disclosed yardstick comprises all subranges therebetween.This yardstick is convenient to reduce the size of the housing that is used for switching device.This protective device can be used in the coming of new of switching device or is used for integrated with existing switching device.In one embodiment, this protective device comprises and is configured to the overlapping shield that moves along switching device.This overlapping shield is in the primary importance of the electric contact of being convenient to expose switching device and reciprocating motion between being convenient to prevent near the second place of electric contact.This overlapping shield provides more efficient and more virtuous shield design to prevent near any live part, so that minimize or eliminate arc discharge.In addition, this overlapping shield has reduced the size of switching device housing.

The technique effect of system described in this paper is overlapping shield in the primary importance of the electric contact of being convenient to expose switching device and reciprocating motion between being convenient to prevent near the second place of electric contact.Another technique effect of overlapping shield provides more shield designs to minimize or to prevent near live part, so that minimize or eliminate arc discharge, reduces the size of switching device housing simultaneously.

More than describe in detail and prevent near the protective device of switching device and the example embodiment of method.This protective device and method are not limited to the specific embodiment described in this paper, but the member of protective device and/or switching device and/or the step of method can be used separately with dividually with other member described in this paper and/or step.For example, protective device and method also can be united use with other power-supply system and method, and are not limited to only put into practice with the electrical system described in this paper.But example embodiment can combine with many other electrical applications to carry out and use.

Although the concrete characteristic of various embodiment of the present invention can be in some drawings rather than shown in other accompanying drawing, this is just to convenient.According to principle of the present invention, any characteristic of accompanying drawing can be quoted with any characteristic binding of any other accompanying drawing and/or advocate.

This written description utilizes instance with open the present invention, comprises optimal mode, and also makes any those skilled in the art can put into practice the present invention, comprises preparation and utilizes any layer or system and carry out the method for any merging.Patent right scope of the present invention limits through claim, and can comprise other instance that those skilled in the art expect.If the literal language that other instance has with claim does not have the various structure element; If perhaps other instance has the equivalent structure element that does not have substantial differences with the literal language of claim, these other instance intentions within the scope of the claims so.

Claims (15)

1. one kind is used to expose and prevent the protective device near the electric contact in the switching device housing, and said device comprises:

Be connected to the tie-in module of said housing, said tie-in module comprises first actuating arm and second actuating arm;

Be connected to the guidance set of said housing, said guidance set comprises first end, the second end and the guide body that connects said first end and said the second end;

First shield, the said guide body that it is connected to said first actuating arm of said tie-in module and is connected to said guidance set, said first shield are configured to move along said guide body selectivity; With

Second shield; The said guide body that it is connected to said second actuating arm of said tie-in module and is connected to said guidance set; Said second shield comprises lower plate and upper plate; Said lower plate is connected to said upper plate, and said lower plate and said upper plate are configured to move to the primary importance and the second place that is configured to prevent approaching said electric contact that is configured to expose said electric contact along said guide body selectivity.

2. protective device according to claim 1 is characterized in that said lower plate is connected to said upper plate slippingly.

3. protective device according to claim 1 is characterized in that, said lower plate and said upper plate are connected to said guide body slippingly.

4. protective device according to claim 1 is characterized in that, when said lower plate and said upper plate during in the said second place, said lower plate is arranged on below the said upper plate.

5. protective device according to claim 1 is characterized in that, said lower plate is configured to the said upper plate of when said upper plate and lower plate selectivity move to said primary importance, overlapping at least.

6. protective device according to claim 1 is characterized in that, said lower plate comprises that lower flange and said upper plate comprise upper flange, and said lower flange is configured to when said upper plate and lower plate selectivity move to said primary importance, be connected to said upper flange.

7. protective device according to claim 6 is characterized in that, said lower flange is configured to when said lower plate moves to the said second place with said upper plate selectivity, separate with said upper flange.

8. protective device according to claim 6 is characterized in that, the said upper flange of said upper plate comprises slit.

9. protective device according to claim 8 is characterized in that, the said lower flange of said lower plate comprises the pin that is configured to be connected to slippingly said slit.

10. switching device comprises:

Housing, the rear wall that it has top, bottom, sidewall and connects said top and said bottom, said rear wall comprise a plurality of end openings that limit through wherein;

Be connected to the tie-in module of said housing, said tie-in module comprises first actuating arm and second actuating arm;

Be connected to the guidance set of said housing, said guidance set comprises first end, the second end and is connected the guide body of said first end and said the second end;

First shield, the said guide body that it is connected to said first actuating arm of said tie-in module and is connected to said guidance set, said first shield are configured to move along said guide body selectivity; With

Second shield; The said guide body that it is connected to said second actuating arm of said tie-in module and is connected to said guidance set; Said second shield comprises lower plate and upper plate; Said lower plate is connected to said upper plate, and said lower plate and said upper plate are configured to move to the primary importance and the second place that is configured to prevent approaching said electric contact that is configured to expose electric contact along said guide body selectivity.

11. switching device according to claim 10 is characterized in that, at least one in said upper plate and the said lower plate has the height less than the height of said first shield.

12. switching device according to claim 10 is characterized in that, said upper plate and said lower plate are in height similar basically.

13. switching device according to claim 10 is characterized in that, said lower plate is configured to the said upper plate of when said lower plate and said upper plate selectivity move to said primary importance, overlapping at least.

14. switching device according to claim 10 is characterized in that, said upper plate comprises slit, and said lower plate comprises the pin that is configured to be connected to slippingly said slit.

15. switching device according to claim 14 is characterized in that, said pin is connected to said tie-in module.

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