Electrical switch

Abstract

Embodiments of the present disclosure provide an electrical switch. The electrical switch includes a base, a breaking module, at least one connecting piece, and a cover plate. The breaking module is located in the base and includes a housing. The at least one connecting piece fixedly connects the housing of the breaking module to the base. The cover plate is fixed to the base and abuts against the housing of the breaking module.

Description

Technical Field

[0001] The embodiments of this disclosure generally relate to the field of electrical equipment technology, and more specifically, to electrical switches. Background Technology

[0002] The disconnecting module in an electrical switch provides short-circuit protection. In the event of an overcurrent or short circuit in the main circuit of the electrical switch, the moving contact assembly separates from the stationary contact assembly, thereby disconnecting the main circuit of the circuit breaker from the lines and equipment, thus protecting the lines and equipment.

[0003] However, the energy released by the breaking module during the breaking process is very large. Therefore, the breaking module needs to be firmly fixed to the base to prevent it from falling off and causing breaking failure. Utility Model Content

[0004] In one aspect of this disclosure, an electrical switch is provided, the electrical switch comprising: a base; a disconnecting module located within the base and including a housing; at least one connector for fixing the housing of the disconnecting module to the base; and a cover plate fixed to the base and abutting against the housing of the disconnecting module.

[0005] According to embodiments of this disclosure, the breaking module is fixedly mounted on the base via at least one connector. Furthermore, a cover plate presses the breaking module onto the base. In this manner, the breaking module remains connected to the base throughout the breaking process, thereby avoiding breaking failure and preventing the cover plate from separating from the base due to impact.

[0006] In some embodiments, the at least one connector passes through the base, and the end of the at least one connector passing through the base is connected to the housing of the split module.

[0007] In some embodiments, the base includes a connecting plate facing away from the cover plate, the connecting plate having at least one connecting hole, the housing of the splitting module having at least one connecting groove communicating with the at least one connecting hole, and the at least one connector passing through the at least one connecting hole and being fixed in the at least one connecting groove.

[0008] In some embodiments, the electrical switch further includes at least one limiting member disposed within the at least one connecting slot, and the at least one connecting member is fixedly connected to the at least one limiting member.

[0009] In some embodiments, the housing includes a first housing and a second housing connected to each other, and at least one connecting groove is disposed on the first housing or the second housing; or the at least one connecting groove is disposed at the connection between the first housing and the second housing.

[0010] In some embodiments, when at least one connecting groove is provided on the first housing or the second housing, the connecting groove includes a first part, a second part, and a third part, the first part, the second part, and the third part being arranged sequentially along the axial direction of the connector and communicating with each other, the first part communicating with the connecting hole, and the limiting member being disposed within the second part.

[0011] In some embodiments, along the radial direction of the connector, the radial dimension of the second portion is greater than the radial dimension of the first portion and the radial dimension of the third portion.

[0012] In some embodiments, the electrical switch further includes a plurality of fasteners, the base further includes a first pair of side plates connected to the connecting plate, the cover plate includes a second pair of side plates, at least one of the plurality of fasteners passes through the first pair of side plates and is fixed to the connecting carrier, and the remaining fasteners of the plurality of fasteners other than the at least one fastener pass through the second pair of side plates and are fixed to the connecting carrier.

[0013] In some embodiments, the electrical switch further includes a plurality of locking elements disposed on the side of the connection carrier opposite to the electrical switch and fixedly connected to the plurality of fasteners.

[0014] In some embodiments, the base further includes at least one first mating hole extending from one of the first pair of side plates to the other of the first pair of side plates, and at least one fastener is disposed within the at least one first mating hole; and the cover plate further includes at least one second mating hole extending from one of the second pair of side plates to the other of the second pair of side plates, and the remaining fasteners are respectively disposed within corresponding second mating holes in the at least one second mating hole.

[0015] In some embodiments, the base and the cover plate form a connecting chamber for accommodating the disconnect module, and the at least one first mating hole and the at least one second mating hole are respectively spaced apart from the connecting chamber.

[0016] It should be understood that the description in this section is not intended to limit the key or essential features of the embodiments of this disclosure, nor is it intended to restrict the scope of this disclosure. Other features of this disclosure will become readily apparent from the following description. Attached Figure Description

[0017] The above and other features, advantages, and aspects of the embodiments of this disclosure will become more apparent from the accompanying drawings and the following detailed description. In the drawings, the same or similar reference numerals denote the same or similar elements, wherein:

[0018] Figure 1 and Figure 2 Schematic diagrams of the structure of an electrical switch according to some embodiments of the present disclosure are shown from different perspectives;

[0019] Figure 3 A schematic diagram of the structure of an electrical switch according to some embodiments of the present disclosure is shown, wherein a portion of the housing of the electrical switch is removed.

[0020] Figure 4 It shows Figure 3 An enlarged schematic diagram of part A of the electrical switch shown;

[0021] Figure 5 It shows Figure 3 The electrical switch shown is a cross-sectional view taken along BB.

[0022] Figure 6 A schematic diagram of the structure of a segmentation module according to some embodiments of the present disclosure is shown;

[0023] Figure 7 A schematic diagram of the structure of a segmentation module according to some other embodiments of the present disclosure is shown;

[0024] Figure 8 and Figure 9 A cross-sectional view of an electrical switch and a connection carrier according to some embodiments of the present disclosure is shown.

[0025] Explanation of reference numerals in the attached figures:

[0026] 100 is an electrical switch; 101 is a connecting chamber; 200 is a connecting carrier.

[0027] 1 is the base, 11 is the connecting plate, 111 is the connecting hole, 12 is the first pair of side plates, and 13 is the first mating hole;

[0028] 2 is the segmentation module, 21 is the housing, 211 is the first housing, 212 is the second housing, 22 is the connecting groove, 221 is the first part, 222 is the second part, and 223 is the third part;

[0029] 3 represents the connector;

[0030] 4 is the cover plate, 41 is the second pair of side plates, and 42 is the second mating hole;

[0031] 5 is a limiting component; 6 is a fastener; 7 is a locking component. Detailed Implementation

[0032] Embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present disclosure will be thorough and complete, and will fully convey the scope of the present disclosure to those skilled in the art.

[0033] The term "comprising" and its variations as used herein signify open inclusion, i.e., "including but not limited to". Unless otherwise stated, the term "or" means "and / or". The term "based on" means "at least partially based on". The terms "one example embodiment" and "one embodiment" mean "at least one example embodiment". The term "another embodiment" means "at least one additional embodiment". The terms "first", "second", etc., may refer to different or the same objects.

[0034] As described above, the disconnecting module needs to be securely fixed to the base to prevent it from detaching and causing disconnection failure. However, in conventional electrical switches, the disconnecting module is merely pressed against the base by a cover plate fixed to it. During disconnection, the energy released by the disconnecting module can separate the cover plate from the base, causing the disconnecting module to detach from the base, resulting in disconnection failure. Embodiments of this disclosure provide an electrical switch that at least partially solves the above-mentioned problems. In the following, [the following will be combined with...] Figures 1 to 9 The principles of this disclosure are described.

[0035] Figure 1 and Figure 2 Schematic diagrams of the structure of an electrical switch 100 according to some embodiments of the present disclosure are shown from different perspectives. Figure 3 A schematic diagram of the structure of an electrical switch 100 according to some embodiments of the present disclosure is shown, wherein the electrical switch 100 has part of its housing removed. For example... Figures 1 to 3 As shown, the electrical switch 100 described herein includes a base 1, a disconnecting module 2, at least one connector 3, and a cover plate 4. The cover plate 4 covers the base 1. The cover plate 4 is fixedly mounted on the base 1, for example, by bolts, screws, or other types of fasteners.

[0036] Figure 4 It shows Figure 3 An enlarged schematic diagram of part A of the electrical switch 100 shown. (See diagram below.) Figure 3 and Figure 4As shown, in some embodiments, the breaking module 2 is located within the base 1 and includes a housing 21. At least one connector 3 securely connects the housing 21 of the breaking module 2 to the base 1. Furthermore, a cover plate 4 is adapted to abut against the housing 21 of the breaking module 2. That is, the cover plate 4 abuts against the housing 21 of the breaking module 2 and is adapted to press the housing 21 of the breaking module onto the base 1.

[0037] According to an embodiment of this disclosure, the breaking module 2 is fixedly mounted on the base 1 by at least one connector 3. Furthermore, the cover plate 4 presses the breaking module 2 onto the base 1. In this manner, during the breaking process, the breaking module 2 remains connected to the base 1, thereby avoiding breaking failure and preventing the cover plate 4 from separating from the base 1 due to impact.

[0038] The breaking module 2 primarily performs short-circuit protection. For example, in some embodiments, the breaking module 2 may further include an arc-extinguishing chamber, a moving contact assembly, a stationary contact assembly, an electromagnetic coil, and a tripping mechanism located within the housing 21. The arc-extinguishing chamber, moving contact assembly, stationary contact assembly, electromagnetic coil, and tripping mechanism are not shown in the figures. The electromagnetic coil is electrically connected to the main circuit. During a short circuit, the electromagnetic coil generates a strong magnetic field, which drives the tripping mechanism. Driven by the tripping mechanism, the moving contact assembly is adapted to move away from the stationary contact assembly, thereby achieving the breaking process. The arc-extinguishing chamber may be adjacent to the stationary contact assembly and is adapted to extinguish the arc during the breaking process. The arc-extinguishing chamber is connected to a gas passage. During the breaking process, high-temperature, compressed gas rapidly escapes from the gas passage and the gap between the housing 21 to release energy.

[0039] To ensure a secure connection between the split module 2 and the base 1, continue to refer to... Figure 3 and Figure 4 In some embodiments, at least one connector 3 may pass through the base 1, and the end of the connector 3 passing through the base 1 is connected to the housing 21. The at least one connector 3 may include components such as screws or bolts. It should be understood that in other embodiments, the split module 2 and the base 1 may be assembled using any other suitable connection method. For example, at least one connector 3 includes a snap-fit, and at least one connector 3 is connected to the housing 21. Correspondingly, a slot is provided within the base 1. The snap-fit ​​and slot engage to securely connect the split module 2 to the base 1.

[0040] Figure 5 It shows Figure 3 The electrical switch 100 shown is a cross-sectional view taken along BB. Figures 3 to 5 As shown, in some embodiments, the base 1 and the housing 21 form a connecting chamber 101 for accommodating the splitting module 2. Figure 5In the example, the electrical switch 100 may include a pair of connectors 3. The electrical switch 100 may include a pair of disconnecting modules 2. Each connector 3 in the pair of connectors 3 securely connects the corresponding disconnecting module 2 to the base 1.

[0041] It should be noted that the figures, values, numbers, etc., mentioned above and elsewhere in this disclosure are exemplary and are not intended to limit the scope of this disclosure in any way. Any other suitable figures, values, or numbers are possible. For example, depending on the specific application scenario and requirements, the electrical switch 100 may also include a pair of connectors 3 and a single disconnecting module 2. The pair of connectors 3 are adapted to securely connect the single disconnecting module 2 to the base 1.

[0042] Return to reference Figures 2 to 4 In some embodiments, the base 1 includes a connecting plate 11 facing away from the cover plate 4. The connecting plate 11 has at least one connecting hole 111. The housing 21 of the disconnecting module 2 has at least one connecting groove 22. The at least one connecting groove 22 is adapted to communicate with the at least one connecting hole 111. Thus, at least one connector 3 is adapted to pass through the at least one connecting hole 111 and be fixed within the at least one connecting groove 22. It is understood that the end of the at least one connector 3 is only located within the housing 21, but does not pass through the housing 21 of the disconnecting module 2; therefore, the at least one connector 3 is adapted to be spaced apart from the cavity within the housing 21. In this way, arcing can be prevented from reaching the at least one connector 3, thereby avoiding the risk of the housing 21 being punctured or even causing an inter-electrode short circuit, thus meeting the electrical insulation requirements.

[0043] To increase the firmness of the connection between the split module 2 and the base 1, continue to refer to... Figures 2 to 4 In some embodiments, the electrical switch 100 may further include at least one limiting member 5 disposed within at least one connecting groove 22. At least one connecting member 3 is adapted to be fixedly connected to at least one limiting member 5. For example, at least one connecting member 3 may be threadedly engaged with at least one limiting member 5. It should be understood that in other embodiments, the disconnecting module 2 and the base 1 may be assembled using any other suitable connection method. For example, at least one connecting groove 22 may be threaded, and at least one connecting member 3 may be threadedly engaged with at least one connecting groove 22.

[0044] Figure 6 A schematic diagram of the structure of the segmentation module 2 according to some embodiments of the present disclosure is shown. For example... Figure 6As shown, in some embodiments, housing 21 includes a first housing 211 and a second housing 212 connected to each other. At least one connecting groove 22 may be provided at the connection between the first housing 211 and the second housing 212. In this way, it is convenient to assemble the limiting member 5 into the connecting groove 22. However, since there is still a gap between the first housing 211 and the second housing 212, at least one limiting member 5 is not completely isolated from the disconnecting module 2.

[0045] Figure 7 A schematic diagram of the structure of the segmentation module 2 according to other embodiments of the present disclosure is shown. For example... Figure 7 As shown, in some embodiments, at least one connecting groove 22 is provided on the first housing 211 or the second housing 212. For example, at least one connecting groove 22 may be provided on the second housing 212. The at least one connecting groove 22 is spaced apart from the cavity inside the housing 21. In this way, at least one limiting member 5 is completely isolated from the disconnecting module 2, preventing electric arc from creeping from the gap to the at least one limiting member 5, thereby avoiding the risk of the housing 21 being punctured or even causing an inter-electrode short circuit, and thus meeting the electrical insulation requirements.

[0046] Return to reference Figure 4 and Figure 7 In some embodiments, when at least one connecting groove 22 is provided on the first housing 211 or the second housing 212, the connecting groove 22 may include a first portion 221, a second portion 222, and a third portion 223. The first portion 221, the second portion 222, and the third portion 223 are arranged sequentially along the axial direction X of the connector 3, and the first portion 221, the second portion 222, and the third portion 223 communicate with each other along the axial direction X of the connector 3. The first portion 221 may communicate with the connecting hole 111, and the limiting member 5 may be disposed within the second portion 222. In this way, at least one connector 3 is adapted to pass through at least one connecting hole 111 and be fixed within the limiting member 5.

[0047] Continue to refer to Figure 4 Furthermore, along the radial direction Y of the connector 3, the radial dimension of the second part 222 can be greater than the radial dimension of the first part 221 and the radial dimension of the third part 223. The radial dimension of the first part 221 can be equal to or unequal to the radial dimension of the third part 223. In this way, the limiting member 5 can be prevented from falling out of the connecting groove 22. In addition, during the process of tightening the connector 3 inward, the upward movement of the limiting member 5 is effectively restricted, thereby ensuring that the connector 3 is suitable for being screwed into the limiting member 5.

[0048] Return to reference Figure 1 and Figure 2In some embodiments, the base 1 further includes a first pair of side plates 12 connected to the connecting plate 11. The first pair of side plates 12 are disposed opposite to each other. The cover plate 4 includes a second pair of side plates 41. The second pair of side plates 41 are disposed opposite to each other. One side plate of the first pair of side plates 12 and one side plate of the second pair of side plates 41 are located on the same side and in contact with each other. The other side plate of the first pair of side plates 12 and the other side plate of the second pair of side plates 41 are located on the same side and in contact with each other.

[0049] Figure 8 and Figure 9 Cross-sectional views of an electrical switch 100 and a connection carrier 200 according to some embodiments of the present disclosure are shown. Figure 1 and Figure 2 , Figure 8 and Figure 9 As shown, in some embodiments, the electrical switch 100 further includes a plurality of fasteners 6. At least one of the plurality of fasteners 6 passes through the first pair of side plates 12 and is secured to the connecting carrier 200. The remaining fasteners 6, excluding the at least one fastener 6, pass through the second pair of side plates 41 and are secured to the connecting carrier 200. In this manner, the electrical switch 100 can be mounted sideways on the connecting carrier 200.

[0050] Continue to refer to Figure 8 and Figure 9 In some embodiments, the electrical switch 100 further includes a plurality of locking elements 7. The plurality of locking elements 7 are disposed on the side of the connecting carrier 200 opposite to the electrical switch 100 and are adapted to be fixedly connected with a plurality of fasteners 6. It is understood that the electrical switch 100 can be securely fixed to the connecting carrier 200 by the threaded engagement of the plurality of locking elements 7 with the plurality of fasteners 6.

[0051] Continue to refer to Figure 2 and Figure 8 In some embodiments, the base 1 further includes at least one first mating hole 13. The at least one first mating hole 13 extends from one of the first pair of side plates 12 to the other side plate of the first pair of side plates 12. At least one fastener 6 may be disposed within the at least one first mating hole 13. In this way, the at least one fastener 6 can secure the electrical switch 100 to the connecting carrier 200.

[0052] Continue to refer to Figure 2 and Figure 9In some embodiments, the cover plate 4 further includes at least one second mating hole 42. The at least one second mating hole 42 extends from one of the second pair of side plates 41 to the other side plate of the second pair of side plates 41. Remaining fasteners 6 are respectively disposed within the corresponding second mating holes 42. In this way, at least one fastener 6 can secure the electrical switch 100 to the connecting carrier 200.

[0053] Continue to refer to Figure 8 and Figure 9 At least one first mating hole 13 and at least one second mating hole 42 are spaced apart from the connecting chamber 101, thereby separating them from the cavities within the housing 21. In this manner, at least one fastener 6 is completely isolated from the disconnecting module 2, preventing electric arc from creeping from at least one first mating hole 13 and at least one second mating hole 42 to at least one fastener 6, thereby avoiding the risk of the housing 21 being punctured or even causing an inter-electrode short circuit, and meeting the requirements of electrical insulation.

[0054] The installation design according to embodiments of this disclosure can be applied to electrical switches, including circuit breakers, to at least partially solve the above-described problems. It should be understood that the installation design according to embodiments of this disclosure can also be applied to other electrical components, and the embodiments of this disclosure are not limiting in this regard.

[0055] The various embodiments of this disclosure have been described above. These descriptions are exemplary and not exhaustive, and are not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or technical improvements to the embodiments in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. An electrical switch (100), characterized in that, The electrical switch (100) includes: Base (1); The splitting module (2) is located inside the base (1) and includes a housing (21); At least one connector (3) securely connects the housing (21) of the split module (2) to the base (1); and The cover plate (4) is fixed to the base (1) and abuts against the housing (21) of the split module (2).

2. The electrical switch (100) according to claim 1, characterized in that, The at least one connector (3) passes through the base (1), and the end of the at least one connector (3) passing through the base (1) is connected to the housing (21) of the split module (2).

3. The electrical switch (100) according to claim 2, characterized in that, The base (1) includes a connecting plate (11) facing away from the cover plate (4), the connecting plate (11) is provided with at least one connecting hole (111), the housing (21) of the split module (2) is provided with at least one connecting groove (22) communicating with the at least one connecting hole (111), and the at least one connector (3) passes through the at least one connecting hole (111) and is fixed in the at least one connecting groove (22).

4. The electrical switch (100) according to claim 3, characterized in that, The electrical switch (100) further includes at least one limiting member (5) disposed in the at least one connecting groove (22), and the at least one connecting member (3) is fixedly connected to the at least one limiting member (5).

5. The electrical switch (100) according to claim 4, characterized in that, The housing (21) includes a first housing (211) and a second housing (212) connected to each other, and the at least one connecting groove (22) is disposed on the first housing (211) or the second housing (212); or The at least one connecting groove (22) is provided at the connection between the first housing (211) and the second housing (212).

6. The electrical switch (100) according to claim 5, characterized in that, When at least one connecting groove (22) is provided on the first housing (211) or the second housing (212), the connecting groove (22) includes a first part (221), a second part (222) and a third part (223), the first part (221), the second part (222) and the third part (223) are arranged sequentially along the axial direction (X) of the connector (3) and communicate with each other, the first part (221) communicates with the connecting hole (111) and the limiting member (5) is provided in the second part (222).

7. The electrical switch (100) according to claim 6, characterized in that, Along the radial direction (Y) of the connector (3), the radial dimension of the second part (222) is greater than the radial dimension of the first part (221) and the radial dimension of the third part (223).

8. The electrical switch (100) according to claim 3, characterized in that, The electrical switch (100) also includes a plurality of fasteners (6), the base (1) also includes a first pair of side plates (12) connected to the connecting plate (11), the cover plate (4) includes a second pair of side plates (41), at least one of the plurality of fasteners (6) passes through the first pair of side plates (12) and is fixed to the connecting carrier (200), and the remaining fasteners (6) of the plurality of fasteners (6) other than the at least one fastener (6) pass through the second pair of side plates (41) and are fixed to the connecting carrier (200).

9. The electrical switch (100) according to claim 8, characterized in that, The electrical switch (100) also includes a plurality of locking elements (7), which are disposed on the side of the connecting carrier (200) opposite to the electrical switch (100) and are fixedly connected to the plurality of fasteners (6).

10. The electrical switch (100) according to claim 8, characterized in that, The base (1) further includes at least one first mating hole (13) extending from one of the first pair of side plates (12) to the other of the first pair of side plates (12), and the at least one fastener (6) is disposed within the at least one first mating hole (13); and The cover plate (4) further includes at least one second mating hole (42) extending from one of the second pair of side plates (41) to the other side plate of the second pair of side plates (41), and the remaining fasteners (6) are respectively disposed in the corresponding second mating holes (42) in the at least one second mating hole (42).

11. The electrical switch (100) according to claim 10, characterized in that, The base (1) and the cover plate (4) form a connecting chamber (101) for accommodating the split module (2), and the at least one first mating hole (13) and the at least one second mating hole (42) are respectively spaced apart from the connecting chamber (101).

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