Busbar structure of isolating switch and isolating switch

Abstract

The utility model relates to a busbar structure of an isolating switch and the isolating switch, the busbar structure is used for connecting a bus of power equipment, and the busbar structure specifically comprises a transition bar used for being fixed to the isolating switch; the contact is connected to the transition bar and is used for being matched with other contacts to connect or disconnect a circuit; and the rotating bar is used for connecting a bus, and the rotating bar is connected to the transition bar in an angle-adjustable manner so as to adapt to the access direction of the bus. According to the busbar structure, the connection mode of the busbar and the contact in the prior art is improved, the transition bar is arranged so that the rotating bar used for connecting the bus can be correspondingly adjusted according to the equipment installation space and the extension direction of the bus, and selection and independent replacement and installation can be conveniently carried out according to the field condition.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power equipment, in particular to a disconnecting switch and a busbar structure of the disconnecting switch. BACKGROUND

[0002] The disconnecting switch is mainly used for realizing the isolation of power supply, performing switching operation, and connecting or cutting off current circuit. When the disconnecting switch is in a disconnecting position, the contacts thereof keep a certain insulation distance to meet the specified safety requirements, and there is a clear disconnecting mark to distinguish. When the disconnecting switch is in a closing position, the disconnecting switch should be able to carry the current under normal working conditions and withstand the current impact generated by abnormal conditions (for example, short circuit) within a specified time.

[0003] The existing frame type disconnecting switch generally adopts a horizontal wiring mode, and such a layout makes the cable arrangement neat and beautiful. However, the horizontal wiring mode needs to occupy more space, and it is difficult to adapt to occasions where the space is limited or the space is optimized. CONTENT OF THE UTILITY MODEL

[0004] The present application provides a busbar structure which can flexibly adapt to the access direction of busbar and further optimize the occupied space, and a disconnecting switch with the busbar structure.

[0005] The busbar structure of the disconnecting switch according to the present application is used for connecting the busbar of the power equipment, and comprises:

[0006] A transition busbar is used for being fixed to the disconnecting switch.

[0007] A contact is connected to the transition busbar and used for cooperating with other contacts to turn on or turn off the circuit.

[0008] A rotating busbar is used for connecting the busbar and is connected to the transition busbar in an angle-adjustable manner to adapt to the access direction of the busbar.

[0009] The following optional modes are also provided, but are not additional limitations on the above general scheme, and are only further supplements or preferences. Without technical or logical contradiction, each optional mode can be combined with the above general scheme alone, and can also be combined between multiple optional modes.

[0010] In one embodiment, the rotating busbar comprises:

[0011] A base is rotationally matched with the transition busbar to adjust and keep the relative angle with the transition busbar.

[0012] A connecting arm is fixed to the base, and the connecting arm is N in parallel arrangement to supply N+1 busbars for interval access.

[0013] In one embodiment, a connecting groove is arranged between two adjacent connecting arms for at least one busbar to be arranged therein, and the base is arranged at at least two installation angles relative to the transition row;

[0014] At the two installation angles, the extending directions of the connecting grooves are perpendicular to each other.

[0015] In one embodiment, the base and the transition row are provided with mating surfaces abutting against each other, and the base and the transition row are kept in abutment with each other at different angles.

[0016] In one embodiment, the base is rotatably connected to the transition row about a rotation axis perpendicular to the mating surfaces to change the installation angle.

[0017] The base and the transition row are further provided with fasteners for keeping the positional relationship therebetween.

[0018] In one embodiment, the base and the transition row are provided with connecting holes for the fasteners to pass through, and at least one of the connecting holes is strip-shaped and extends about the rotation axis.

[0019] In one embodiment, the connecting holes include:

[0020] First connecting holes are arranged in the transition row, and the first connecting holes are strip-shaped and arranged in plurality, and each of the first connecting holes is arranged about the rotation axis in sequence and at intervals.

[0021] Second connecting holes are arranged in the base, and the second connecting holes are arranged in plurality and are positionally matched with the corresponding first connecting holes.

[0022] In one embodiment, the transition row is a plate structure and has a thickness direction, and the contacts and the transition row are connected to both sides of the thickness direction of the transition row.

[0023] In one embodiment, the mating surface of one of the base and the transition row is provided with a guide groove extending about the rotation axis, and the mating surface of the other is provided with a guide rib matched with the guide groove.

[0024] In one embodiment, the guide groove is annular, and the guide rib is continuously extended or arranged at intervals.

[0025] The application further provides an isolating switch comprising the busbar structure of the isolating switch, and the busbar structure is arranged in plurality, and each two are a group, and the contacts of one of the busbar structures in the same group are fixedly installed as static contacts of the corresponding transition row, and the contacts of the other busbar structure are movably installed as movable contacts of the corresponding transition row.

[0026] The isolating switch is provided with an operating mechanism for driving the movable contact to cooperate with the fixed contact to turn on or turn off the circuit.

[0027] The busbar structure of the present application improves the connection mode of the busbar and the contact in the prior art, and the rotary row for connecting the busbar can be adjusted according to the equipment installation space and the extension direction of the busbar by setting the transition row, so that the selection and independent replacement and installation are facilitated according to the site conditions. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0029] Figure 1 It is a structural schematic diagram of the isolating switch in an embodiment of the present application.

[0030] Figure 2 It is a structural schematic diagram of the isolating switch in an embodiment of the present application. Figure 1 It is a structural schematic diagram of the isolating switch in an embodiment of the present application.

[0031] Figure 3 It is a structural schematic diagram of the isolating switch in an embodiment of the present application. Figure 2 It is a structural schematic diagram of the isolating switch in an embodiment of the present application.

[0032] Figure 4 It is a structural schematic diagram of the isolating switch in an embodiment of the present application. Figure 2 It is an explosion view of the busbar structure part of the isolating switch in an embodiment of the present application.

[0033] Figure 5 It is a structural schematic diagram of the isolating switch in an embodiment of the present application. Figure 4 It is a structural schematic diagram of the isolating switch in an embodiment of the present application.

[0034] Figure 6 It is a structural schematic diagram of the isolating switch in an embodiment of the present application.

[0035] Figure 7 It is a structural schematic diagram of the isolating switch in an embodiment of the present application. Figure 6 It is a structural schematic diagram of the isolating switch in an embodiment of the present application.

[0036] Figure 8 It is a structural schematic diagram of the isolating switch in an embodiment of the present application.

[0037] The element reference numbers are as follows:

[0038] 100, transition row; 110, mounting hole; 120, first connecting hole; 130, guide groove; 140, rotation axis; 150, fastener;

[0039] 200, contact; 210, fixed contact; 220, movable contact; 221, fixed part; 222, swing part;

[0040] 300, rotating row; 310, base; 311, second connecting hole; 312, guide rib; 320, connecting arm; 321, fixing hole; 322, first notch; 323, second notch; 330, connecting groove;

[0041] 400, busbar;

[0042] 500, shell; 510, partition plate. DETAILED DESCRIPTION

[0043] In order to make the above objectives, features and advantages of the present application more apparent, specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a number of different ways without being limited to the embodiments described herein below, and it is apparent that those skilled in the art can make similar modifications without departing from the scope of the present application, and therefore the present application is not limited to the specific embodiments disclosed below.

[0044] It should be noted that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or there can be an intervening element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or there can be an intervening element. The terms "vertical", "horizontal", "up", "down", "left", "right", and similar expressions used in the specification are used for illustrative purposes only and are not intended to be limiting.

[0045] In addition, the terms "first", "second", and the like are used only to describe the elements and are not intended to indicate or imply relative importance or a quantity of the indicated elements. Thus, a feature with a "first", "second" designation can include one or more such features, either explicitly or implicitly. In the description of the present application, the meaning of "a plurality of" is at least two, for example, two, three, and the like, unless otherwise specifically limited.

[0046] In the present application, unless specifically defined and limited otherwise, the first feature is "on", "under", "above" or "over" the second feature can be that the first feature is in direct contact with the second feature, or the first feature is indirectly in contact with the second feature through an intermediate medium. Moreover, the first feature is "on", "above" and "over" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the first feature is higher than the second feature in horizontal height (or in a use state, or in a certain drawing perspective). The first feature is "under", "below" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the first feature is lower than the second feature in horizontal height (or in a use state, or in a certain drawing perspective).

[0047] Unless otherwise defined, all technical and scientific terms used in the specification of the present application have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terms used in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application. The term "and / or" used in the specification of the present application includes any and all combinations of one or more related listed items.

[0048] Referring to Figures 1-5 The present application provides an isolating switch and a busbar structure applied to the isolating switch. The busbar of the power equipment can be connected to the busbar structure. By the opening and closing actions of the isolating switch, the contacts inside the isolating switch are correspondingly turned on or turned off.

[0049] The isolating switch has a shell 500 around the periphery. The busbar structure can be arranged in multiple sets, each two sets forming a group, for example Figure 3 As shown in FIG. 1, A group and B group can be seen. A partition 510 is arranged between the A group and the B group. The B group, for example, includes two sets, i.e., B1 set and B2 set.

[0050] Each set of busbar structure includes an exposed part (such as a rotating busbar 300) for connecting to the busbar, and a contact 200 inside the shell 500. In the B1 set, it is a static contact 210, and in the B2 set, it is a movable contact 220. The movable contact 220 includes a fixed part 221 and a swing part 222. The isolating switch has an operating mechanism for moving the swing part 222 of the movable contact 220 and cooperating with the static contact 210 to turn on or turn off the circuit.

[0051] The operating mechanism can be controlled by both manual and electric methods, and the moving contact is moved by a transmission assembly to realize the opening and closing actions of the disconnecting switch. In manual operation, the operator drives the transmission assembly by a handle or other mechanical device, and the main shaft and connecting rod that are connected to each other in the transmission assembly are arranged to move the moving contact 220. In electric operation, the motor drive replaces the manual operation, and the main shaft is driven by the rotating torque of the motor to drive the connecting rod and the moving contact 220 to complete the opening and closing actions, so that the disconnecting switch can flexibly adapt to different operating environments and requirements.

[0052] In order to effectively utilize the limited space and realize the compactness of the circuit layout, the busbar structure of one embodiment of the present application includes a rotating row 300, a contact 200, and a transition row 100.

[0053] The transition row 100 is fixed to the disconnecting switch, for example, directly or indirectly fixed to the housing 500 of the disconnecting switch. The transition row 100 is plate-shaped as a whole and has a thickness direction, and has opposite inner and outer sides along the thickness direction, wherein the inner side is towards the inside of the disconnecting switch, the contact 200 is installed on the inner side of the transition row 100, and the rotating row 300 is connected to the outer side of the transition row 100 for external busbar access.

[0054] According to the specific arrangement of the contact 200, it can be a stationary contact 210 or a moving contact 220, which is used to cooperate with other types of contacts to conduct or disconnect the circuit.

[0055] As one of the improvements of the present application, the rotating row 300 is angle-adjustable and connected to the transition row 100 to adapt to the access direction of the busbar 400. That is, the rotating row 300 can change its posture relative to the transition row 100 to adapt to different busbar extension directions.

[0056] In the prior art busbar, the part connected to the busbar and the contact 200 (the fixed part 221 of the stationary contact 210 or the moving contact 220) are integrated, and the present application adopts a split structure, the rotating row 300 is angle-adjustable and connected to the contact 200 through the transition row 100, which further improves the adaptation ability of the busbar access. For the fixed part 221 of the stationary contact 210 or the moving contact 220, an integrated structure with the transition row 100 can also be used. In order to ensure good electrical performance, the rotating row 300 and the transition row 100 should have sufficient contact area, and both can use materials such as red copper with good electrical conductivity.

[0057] In combination Figures 6-8In one embodiment, the rotating row 300 includes a base 310 and a connecting arm 320, wherein the base 310 is a plate as a whole and is rotationally matched with the transition row 100 to adjust and maintain the relative angle with the transition row 100. The base 310 and the transition row 100 have mutually abutting matching surfaces, and in a preferred manner, the two maintain the mutually abutting matching surfaces at different angles.

[0058] In one embodiment, the structure of the rotating row 300 is also improved, wherein the connecting arm 320 is fixed to the side of the base 310 away from the transition row 100 and is designed to be separated, which can increase the contact area by being inserted into each other when multiple busbars are fitted. For example, the connecting arm 320 is arranged in parallel in N for N+1 busbars 400 to be spaced and accessed. In this embodiment, the connecting arm 320 is two, and the connecting groove 330 between the two connecting arms 320 is used for accessing at least one busbar 400. For example, when three busbars 400 are arranged in parallel, the middle busbar is inserted into the connecting groove 330, and the other two busbars are respectively attached to the side away from the two connecting arms 320. Each connecting arm 320 and each busbar 400 are inserted and stacked into each other, and the busbar 400 and the connecting arm 320 are provided with position-matched fixing holes 321 for being locked to each other by a connecting member. Multiple connecting arms 320 increase the contact area of the rotating row 300 and the system busbar row, reduce the contact resistance, and reduce the overall power consumption.

[0059] In one embodiment, the thickness of the connecting arm 320 is 10 mm, and the distance between the two connecting arms 320 is 10 mm, which can be fitted with a busbar 400 with a thickness of 10 mm.

[0060] In order to adapt to different installation scenes, the base 310 has at least two installation angles relative to the transition row 100, and in the two installation angles, the extension direction of the connecting groove 330 is perpendicular to each other.

[0061] Figure 6 In one embodiment, the connecting groove 330 in the use state extends in the vertical direction, and the busbar 400 in the posture in the figure can be further inserted in the direction of the arrow, or can be combined with the connecting arm 320 on the side horizontally. If the base 310 is rotated by 90 degrees relative to the transition row 100, the connecting groove 330 in the use state extends in the horizontal direction and is matched with the horizontally extending busbar. In this embodiment, by adjusting the rotating row 300, the vertical connection or the horizontal connection can be selected, which is convenient for selection and independent replacement according to the on-site situation.

[0062] To facilitate the adjustment of the angle and facilitate the assembly, the base 310 is rotationally fitted relative to the transition row 100 about a rotation axis 140 to change the mounting angle, for example, the rotation axis 140 is perpendicular to the fitting surface, and the base 310 and the transition row 100 are also provided with fasteners 150 for maintaining the positional relationship therebetween, which can be in the form of bolts and the like, and after the angle is adjusted, the base 310 and the transition row 100 are locked and fixed to each other. To adapt to the adjustment of the rotating row 300, the base 310 and the transition row 100 are provided with connecting holes for the fasteners 150 to pass through, and the connecting holes of at least one of them are strip-shaped and extend about the rotation axis 140. When adjusting, only the fasteners 150 are slightly loosened, and the fasteners 150 adaptively slide in the strip-shaped connecting holes during the rotation of the base 310, without the need to completely remove the fasteners 150, thereby improving the operation convenience,

[0063] Referring to Figure 6 and Figure 7 In one embodiment, the connecting holes specifically include first connecting holes 120 provided in the transition row 100 and second connecting holes 311 provided in the base 310. In addition, it can be seen from the figure that the transition row 100 is also provided with mounting holes 110 for connecting the contacts 200.

[0064] The first connecting holes 120 are strip-shaped and four in number, and each first connecting hole 120 is arranged in sequence and spaced about the rotation axis 140; the circumferential length of the first connecting hole 120, that is, the corresponding central angle, can be set according to the required adjustment angle of the base 310, and of course, in the case of removing the fasteners 150, this limitation can be further broken through. The first connecting hole 120 is provided with a counterbore structure on the side facing away from the base 310, so as to avoid and accommodate the head of the fastener 150.

[0065] The hole diameter of the second connecting hole 311 only needs to adapt to the fastener 150, so as to facilitate the relative position with the fastener 150, and the second connecting hole 311 has a plurality of positions matched with the corresponding first connecting hole 120.

[0066] To guide the rotation of the base 310 and constrain it with the transition row 100, the fitting surface of the transition row 100 is provided with a guide groove 130 extending about the rotation axis 140, and the fitting surface of the base 310 is provided with a guide rib 312 matched with the guide groove 130. Among them, the guide groove 130 and the guide rib 312 are annular, and the base 310 can keep the axial position unchanged when rotating, avoiding unnecessary deviation.

[0067] Referring to Figure 8 To further optimize the electrical performance, the connecting arm 320 is provided with a first slot 322 and a second slot 323 on the two corners facing the base 310, respectively, and the parts cut off during processing correspond Figure 8The dashed line in the middle is connected to the bus, and the bus between the bus can be left enough electrical clearance and creepage distance.

[0068] The busbar structure and the isolating switch of the present application can adapt to more use scenarios, further optimize the occupied space, and improve the installation efficiency of the equipment through the improvement of the traditional structure.

[0069] The technical features of the above-described embodiments can be combined arbitrarily. To make the description concise, all possible combinations of the technical features in the above-described embodiments are not described, but as long as the combinations of the technical features do not exist, they should be considered as the scope disclosed in the present application. When the technical features in different embodiments are embodied in the same figure, it can be considered that the figure also discloses the combination of each embodiment involved.

[0070] The above-described embodiments only express several implementation manners of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the patent scope of the present application. It should be pointed out that for ordinary skilled persons in the art, without departing from the concept of the present application, several modifications and improvements can be made, which belong to the protection scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. A busbar structure for disconnecting switches, used to connect busbars (400) of power equipment, characterized in that, The busbar structure includes: Transition bus (100) is used to fix the switch to the disconnector; A contact (200) is connected to the transition row (100) and is used to cooperate with other contacts to make or break the circuit; A rotating busbar (300) is used to connect to the busbar (400). The rotating busbar (300) is connected to the transition busbar (100) at an adjustable angle to adapt to the access direction of the busbar (400).

2. The busbar structure of the disconnecting switch according to claim 1, characterized in that, The rotating array (300) includes: The base (310) rotates with the transition row (100) to adjust and maintain the relative angle with the transition row (100); Connecting arms (320) are fixed to the base (310). The connecting arms (320) are arranged in N parallel rows for N+1 busbars (400) to be connected at intervals.

3. The busbar structure of the disconnecting switch according to claim 2, characterized in that, Between two adjacent connecting arms (320) is a connecting groove (330) for at least one busbar (400) to be connected, and the base (310) has at least two installation angles relative to the transition row (100); At the two installation angles, the extension directions of the connecting groove (330) are perpendicular to each other.

4. The busbar structure of the disconnecting switch according to claim 2, characterized in that, The base (310) and the transition row (100) have mating surfaces that abut against each other, and the mating surfaces remain abut against each other at different angles.

5. The busbar structure of the disconnecting switch according to claim 4, characterized in that, The base (310) is rotated relative to the transition row (100) about a rotation axis (140) to change the installation angle, the rotation axis (140) being perpendicular to the mating surface; The base (310) and the transition row (100) are further provided with fasteners (150) for maintaining their positional relationship.

6. The busbar structure of the disconnecting switch according to claim 5, characterized in that, Both the base (310) and the transition row (100) are provided with matching connection holes for the fastener (150) to pass through, wherein at least one of the connection holes is strip-shaped and extends about the rotation axis (140).

7. The busbar structure of the disconnecting switch according to claim 6, characterized in that, The connection hole includes: The first connecting hole (120) is opened in the transition row (100). The first connecting hole (120) is strip-shaped and there are multiple first connecting holes (120). Each first connecting hole (120) is arranged around the rotation axis (140) at intervals. The second connecting hole (311) is provided on the base (310). There are multiple second connecting holes (311) and they are matched with the positions of the corresponding first connecting holes (120).

8. The busbar structure of the disconnecting switch according to claim 5, characterized in that, The transition row (100) has a plate-like structure and a thickness direction, and the contact (200) and the rotating row (300) are connected to both sides of the transition row (100) in the thickness direction; Of the base (310) and the transition row (100), one of the mating surfaces is provided with a guide groove (130) extending around the rotation axis (140), and the other mating surface is provided with a guide rib (312) that mates with the guide groove (130).

9. The busbar structure of the disconnecting switch according to claim 8, characterized in that, The guide groove (130) is annular, and the guide ribs (312) extend continuously or are distributed at intervals.

10. A disconnecting switch, characterized in that, The busbar structure includes the disconnecting switch according to any one of claims 1 to 9, wherein multiple sets of the busbar structure are arranged, and each set is a group of two sets. In the same group, the contacts of one set of the busbar structure are stationary contacts (210) fixedly installed on the corresponding transition bus (100), and the contacts of the other set of the busbar structure are moving contacts (220) movably installed on the corresponding transition bus (100). The disconnecting switch has an operating mechanism for driving the moving contact (220) to cooperate with the stationary contact (210) to connect or disconnect the circuit.

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