Electrical switch
By introducing a buffer component with an elastic element design into the electrical switch, the problem of the impact force of paired actuation components on the half shaft is solved, the protection and weight reduction requirements of the limit component are met, and the stability of the opening and closing operation is ensured.
Patent Information
- Application Number
- CN202520505559.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-21
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-03-21
AI Technical Summary
The paired actuation components of conventional electrical switches exert a large impact force on the half-shaft during the driving process, making the half-shaft prone to breakage. It is difficult to simultaneously meet the requirements of lightweight design and the time and timing requirements for opening and closing.
An electrical switch is designed, comprising a bracket, a pair of actuating components, a locking component, and a buffer component. The buffer component includes an elastic element located on the rotation path of the actuating component. The elastic element can deform and store energy when the actuating component releases energy, thereby reducing impact force and preventing damage to the limiting component.
It significantly reduces the impact force between the buffer assembly and the limit component, protecting the limit component from damage, while meeting the requirements for lightweight design and the duration and timing of opening and closing.
Smart Images
Figure CN223911548U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] Embodiments of the present disclosure generally relate to the technical field of electrical equipment, and more particularly, to an electrical switch. BACKGROUND
[0002] The paired actuating assemblies of the conventional electrical switch can release energy and drive the drive assembly to move to the position of the half shaft buckle, so that the drive assembly is kept in the position ready for closing or opening. The drive assembly can be unbuckled by the half shaft, and in the unbuckled state, the paired actuating assemblies can continue to release energy and drive the drive assembly to move, so that the drive assembly drives the moving contact assembly to move towards or away from the stationary contact assembly. SUMMARY
[0003] In one aspect of the present disclosure, an electrical switch is provided, which includes a bracket, paired actuating assemblies each rotatably arranged on the bracket and each including a first output shaft, a locking assembly coupled to the bracket and including paired limiting members, and a buffer assembly rotatably arranged on the bracket and including a mounting member and a resilient member coupled to the mounting member, the mounting member being limited by the paired limiting members, and the resilient member being located on a rotation path of the first output shaft of the paired actuating assemblies to be pressed and deformed by the first output shaft of the paired actuating assemblies.
[0004] According to embodiments of the present disclosure, since the resilient member is located on the rotation path of the first output shaft of the paired actuating assemblies and can be pressed and deformed by the first output shaft of the paired actuating assemblies, in the case that the paired actuating assemblies release energy, the corresponding actuating assembly in the paired actuating assemblies can contact and press the resilient member. In this way, since the energy of the actuating assembly can be partially stored in the resilient member, the impact force between the buffer assembly and the corresponding limiting member can be significantly reduced, thereby avoiding damage to the limiting member.
[0005] In some embodiments, the resilient member includes a bending portion and paired extension portions coupled to the bending portion, the paired extension portions are oppositely arranged and spaced apart from each other, and the paired extension portions are each capable of being pressed by the first output shaft of the corresponding actuating assembly.
[0006] In some embodiments, the paired extension portions each include an avoiding hole, and the end portion of the paired actuating assemblies is adapted to be received in the corresponding avoiding hole.
[0007] In some embodiments, the mount comprises a first portion and a second portion coupled to the first portion, the bending portion is disposed around the first portion, the second portion has a movement space disposed therein, and the pair of extending portions are located in the movement space, wherein the pair of extending portions are movable in the movement space when each of the pair of extending portions is pressed by the first output shaft of the corresponding actuating assembly.
[0008] In some embodiments, the second portion comprises a pair of limiting shafts, the pair of extending portions are disposed between the pair of limiting shafts and each comprises a bending end facing away from the bending portion, and the bending end is limited by the limiting shaft.
[0009] In some embodiments, the mount further comprises a third portion coupled to a side of the second portion facing away from the first portion and capable of cooperating with the pair of limiting members.
[0010] In some embodiments, the second portion comprises two pairs of contact surfaces, one pair of the two pairs of contact surfaces is adjacent to one of the pair of extending portions, and the other pair of the two pairs of contact surfaces is adjacent to the other of the pair of extending portions, wherein the first output shaft of the pair of actuating assemblies is movable to a position in contact with the corresponding pair of contact surfaces during the pressing of each of the pair of extending portions by the first output shaft of the corresponding actuating assembly.
[0011] In some embodiments, the buffer assembly further comprises a rotating shaft coupled to the first portion, the rotating shaft is coupled to the bracket so that the buffer assembly is rotatably disposed on the bracket.
[0012] In some embodiments, along an axial direction of the rotating shaft, one pair of the two pairs of contact surfaces is each disposed on an opposite side of one of the pair of extending portions, and the other pair of the two pairs of contact surfaces is each disposed on an opposite side of the other of the pair of extending portions.
[0013] In some embodiments, the buffer assembly further comprises a second output shaft coupled to the second portion.
[0014] It should be understood that nothing in this section is intended to limit the key or important features of the embodiments of the present disclosure, nor is it intended to limit the scope of the present disclosure. Other features of the present disclosure will become apparent from the following description. BRIEF DESCRIPTION OF DRAWINGS
[0015] The above and other features, advantages and aspects of embodiments of the present disclosure will become more apparent upon reading the following detailed description in conjunction with the accompanying drawings, in which like references refer to like elements.
[0016] Figure 1 A partial structural schematic diagram of an electrical switch is shown according to some embodiments of the present disclosure;
[0017] Figure 2 A structural schematic diagram of a buffer assembly is shown according to some embodiments of the present disclosure;
[0018] Figure 3 A buffer assembly of an electrical switch is shown; Figure 2 An exploded view of a buffer assembly of an electrical switch is shown;
[0019] Figures 4 to 8 A working state schematic diagram of an electrical switch is shown according to some embodiments of the present disclosure.
[0020] BRIEF DESCRIPTION OF DRAWINGS
[0021] 100 is an electrical switch, and 101 is a movement space;
[0022] 1 is a support;
[0023] 2 is an actuating assembly, and 21 is a first output shaft;
[0024] 3 is a locking assembly, 31 is a limiting piece, and 32 is a driving piece;
[0025] 4 is a buffer assembly, 41 is a mounting piece, 411 is a first part, 412 is a second part, 4121 is a limiting shaft, 4122 is a contact surface, 413 is a third part, 42 is an elastic piece, 421 is a bending part, 422 is an extension part, 4221 is an avoiding hole, 4222 is a bending end, 43 is a rotating shaft, and 44 is a second output shaft. DETAILED DESCRIPTION
[0026] Preferred embodiments of the present disclosure will be described herein below with reference to the accompanying drawings. While preferred embodiments of the present disclosure are shown in the drawings, it is understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the present disclosure to those skilled in the art.
[0027] The term “comprising” and variations thereof as used herein are intended to mean “including but not limited to”. The term “or” as used herein is intended to mean “and / or”. The term “based on” means “based, at least in part, on”. The terms “one example embodiment” and “an embodiment” mean “at least one example embodiment”. The term “another embodiment” means “at least one additional embodiment”. The terms “first”, “second”, etc. can refer to different or same objects.
[0028] As described above, the pair of actuating assemblies of the conventional electrical switch can release energy and drive the driving assembly to move to the position of the half shaft buckle. Since the half shaft will be subjected to the force of the pair of actuating assemblies and the impact of the driving assembly, the stress condition of the half shaft will be poor, thereby causing the problem of easy breakage of the half shaft. In addition, the half shaft needs to meet the lightweight demand. If the weight of the half shaft is increased, although it is beneficial to avoid damage to the half shaft, it cannot meet the requirements of the time length and timing of the opening and closing. Based on this, the embodiments of the present disclosure provide an electrical switch to at least partially solve the above problems. In the following, the embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. Figures 1 to 8 The principles of the present disclosure are described.
[0029] The buffer design according to the embodiments of the present disclosure can be applied to various electrical switches, including but not limited to double power transfer switches. It should be understood that the buffer design according to the embodiments of the present disclosure can also be applied to other electrical components, and the embodiments of the present disclosure do not limit this.
[0030] Figure 1 A partial structural schematic diagram of an electrical switch 100 according to some embodiments of the present disclosure is shown. Figure 2 A structural schematic diagram of a buffer assembly 4 according to some embodiments of the present disclosure is shown. As Figure 1 and Figure 2 shown, the electrical switch 100 described herein generally includes a bracket 1, a pair of actuating assemblies 2, a locking assembly 3, and a buffer assembly 4. The bracket 1 serves as a mounting carrier, which is mainly used to mount the actuating assemblies 2, the locking assembly 3, and the buffer assembly 4. The actuating assembly 2 according to the embodiments of the present disclosure may, for example, include a main spring assembly of a double power transfer switch.
[0031] Referring to Figure 1 and Figure 2 , in some embodiments, the pair of actuating assemblies 2 are each rotatably arranged on the bracket 1, and each includes a first output shaft 21. The pair of actuating assemblies 2 are synchronously rotatable from a release position to a storage position and back to the release position, and are further rotatable in the opposite direction from the release position to the storage position and back to the release position again. The locking assembly 3 is coupled to the bracket 1 and includes a driving member 32 and a pair of limiting members 31. The buffer assembly 4 is rotatably arranged on the bracket 1 and includes a mounting member 41 and an elastic member 42 coupled to the mounting member 41, and the mounting member 41 is limited by the pair of limiting members 31. In this way, the driving member 32 can drive the pair of limiting members 31 to act, so as to release the limit of the mounting member 41, thereby releasing the buffer assembly 4. The elastic member 42 is located on the rotation path of the first output shaft 21 of the pair of actuating assemblies 2 to be pressed and deformed by the first output shaft 21 of the pair of actuating assemblies 2.
[0032] According to the embodiment of the present disclosure, since the elastic member 42 is located on the rotation path of the first output shaft 21 of the pair of actuating assemblies 2 and can be pressed and deformed by the first output shaft 21 of the pair of actuating assemblies 2, in the case of energy release of the pair of actuating assemblies 2, the corresponding actuating assembly 2 in the pair of actuating assemblies 2 can contact and press the elastic member 42. In this way, since the energy of the actuating assembly 2 can be partially stored in the elastic member 42, the impact force between the buffer assembly 4 and the corresponding limiting member 31 can be significantly reduced, thereby avoiding damage to the limiting member 31. In addition, the limiting member 31 also needs to meet the lightweight demand to meet the time length and timing requirements of the opening and closing.
[0033] It should be noted that in the example scenario such as the double power transfer switch, since a set of energy storage mechanism can store energy for two pairs of actuating assemblies 2 at the same time, the buffer assembly 4 can include two and each interacts with a corresponding pair of actuating assemblies 2 to achieve the buffering function.
[0034] The pair of actuating assemblies 2 according to the embodiment of the present disclosure can release energy in both counterclockwise and clockwise directions, Figure 3 It is shown that Figure 2 The buffer assembly 4 of the electrical switch 100 is shown in an exploded view. As Figure 1 And Figure 3 As shown, in some embodiments, the elastic member 42 can include a bending portion 421 and a pair of extension portions 422 coupled to the bending portion 421. The pair of extension portions 422 can be oppositely arranged and spaced apart from each other, and each of the pair of extension portions 422 can be pressed by the first output shaft 21 of the corresponding actuating assembly 2, so that the elastic member 42 is deformed to store energy.
[0035] It can be understood that through the structure design of the above-mentioned elastic member 42, in the process of the clockwise energy release of the pair of actuating assemblies 2, the first output shaft 21 of one of the pair of actuating assemblies 2 can press one of the extension portions 422. And in the process of counterclockwise energy release of the pair of actuating assemblies 2, the first output shaft 21 of the other actuating assembly 2 in the pair of actuating assemblies 2 can press the other extension portion 422. For the working process of the electrical switch 100, it will be described below in combination with Figure 1 、 Figures 4 to 8 .
[0036] To avoid interference of the elastic member 42 with the movement of the actuating assembly 2, as Figure 1 And Figure 3As shown, in some embodiments, each of the pair of extensions 422 can include an avoiding hole 4221, and the end of the pair of actuating assemblies 2 is adapted to be received in the avoiding hole 4221 of the corresponding extension 422. Thus, during the releasing process of the pair of actuating assemblies 2, the end of the pair of actuating assemblies 2 is adapted to be received in the avoiding hole 4221 of the corresponding extension 422 to avoid the pair of actuating assemblies 2 from being interfered by the buffering assembly 4 to rotate. It should be understood that in other embodiments, the avoiding hole 4221 can also be not provided on each of the pair of extensions 422. In addition, the pair of extensions 422 can cooperate with the actuating assemblies 2 in any other appropriate manner to avoid the elastic member 42 from interfering the movement of the actuating assemblies 2.
[0037] With reference to Figure 2 And Figure 3 In some embodiments, the mounting member 41 can include a first portion 411, a second portion 412 coupled to the first portion 411, and a third portion 413 coupled to the second portion 412. The bent portion 421 can be disposed around the first portion 411, so that the stability of the movement of the extensions 422 is improved when the extensions 422 are pressed by the corresponding first output shafts 21. The second portion 412 can be provided with a movement space 101, and the pair of extensions 422 can be located in the movement space 101, wherein the pair of extensions 422 can move in the movement space 101 when each of the pair of extensions 422 is pressed by the corresponding first output shaft 21 of the actuating assembly 2, so that the elastic member 42 is deformed to store energy.
[0038] The elastic member 42 according to the embodiments of the present disclosure can be assembled on the mounting member 41 in any manner, and the embodiments of the present disclosure do not limit this. For example, continuing to refer to Figure 2 And Figure 3 In some embodiments, the second portion 412 can include a pair of limiting shafts 4121. The pair of extensions 422 can be disposed between the pair of limiting shafts 4121 and each include a bent end 4222 facing away from the bent portion 421, and the bent end 4222 can be limited by the limiting shaft 4121. Thus, on the basis of the buffering function of the elastic member 42, the elastic member 42 can be firmly assembled on the mounting member 41 and is not easy to fall off from the mounting member 41. It should be understood that in other embodiments, the elastic member 42 and the mounting member 41 can be assembled in any other appropriate connection manner to avoid the elastic member 42 from falling off from the mounting member 41.
[0039] Continuing to refer to Figures 1 to 3 Further, the third portion 413 can be coupled to the side of the second portion 412 facing away from the first portion 411 and can cooperate with the pair of limiting members 31 to limit the buffering assembly 4 by the pair of limiting members 31.
[0040] It should be noted that, for example, Figure 1 and Figure 4 In the example, such as Figure 1 As shown, in some embodiments, when the first output shaft 21 of one of the paired actuating components 2 is not in contact with or has just contacted the elastic member 42, the third portion 413 of the mounting member 41 can be limited by the corresponding limiting member 31 in the paired limiting members 31. Therefore, referring to... Figure 1 and Figure 4 During the energy release process of the paired actuation components 2, the first output shaft 21 of the corresponding actuation component 2 gradually presses the elastic member 42, but the position of the mounting member 41 does not change and remains in contact with the corresponding limiting member 31.
[0041] It should be understood that in other embodiments, when the first output shaft 21 of one of the paired actuating components 2 is not in contact with or has just contacted the elastic member 42, the third portion 413 may be spaced apart from the corresponding limiting member 31 in the paired limiting members 31. Thus, during the energy release process of the paired actuating components 2, the first output shaft 21 of the corresponding actuating component 2 gradually presses against the elastic member 42 and drives the elastic member 42 and the mounting member 41 together to move towards the corresponding limiting member 31 until the third portion 413 of the mounting member 41 impacts the corresponding limiting member 31, and the mounting member 41 is limited by the corresponding limiting member 31. The embodiments of this disclosure do not limit this.
[0042] Continue to refer to Figures 1 to 3 In some embodiments, the buffer assembly 4 may further include a rotation shaft 43 coupled to the first portion 411. The rotation shaft 43 may be coupled to the bracket 1 so that the buffer assembly 4 is rotatably mounted on the bracket 1.
[0043] Continue to refer to Figures 1 to 3 Furthermore, the buffer assembly 4 may also include a second output shaft 44 coupled to the second part 412. The second output shaft 44 may be coupled to the moving contact assembly via a transmission member such as a crank arm to drive the moving contact assembly toward or away from the stationary contact assembly, thereby realizing the closing operation and the opening operation.
[0044] Continue to refer to Figures 1 to 3In some embodiments, the second portion 412 can include two pairs of contact surfaces 4122. One pair of the two pairs of contact surfaces 4122 can be adjacent to one of the pair of extensions 422, and the other pair of the two pairs of contact surfaces 4122 can be adjacent to the other of the pair of extensions 422. Thus, during the process that the pair of extensions 422 are pressed by the first output shaft 21 of the corresponding actuating assembly 2 respectively, the first output shaft 21 of the pair of actuating assemblies 2 can each move to a position in contact with the corresponding pair of contact surfaces 4122. With the first output shaft 21 of the corresponding actuating assembly 2 pressing on the corresponding pair of contact surfaces 4122, the corresponding actuating assembly 2 can press the buffering assembly 4 on the corresponding limiting member 31, at this time, the corresponding actuating assembly 2, the buffering assembly 4 and the locking assembly 3 are in a relatively stable state with respect to each other, and the pair of actuating assemblies 2 are in an energy storage position. When the driving member 32 drives the pair of limiting members 31 to act and releases the limiting of the buffering assembly 4, the energy stored by the corresponding actuating assembly 2 and the energy stored by the elastic member 42 can jointly drive the buffering assembly 4 to act.
[0045] In order to facilitate the first output shaft 21 of the corresponding actuating assembly 2 to move to a position in contact with the corresponding pair of contact surfaces 4122 during the process of pressing the elastic member 42, for example, with reference to Figures 1 to 3 In some embodiments, along the axial direction of the rotation shaft 43, one pair of the two pairs of contact surfaces 4122 is respectively arranged on the opposite side of one of the pair of extensions 422, and the other pair of the two pairs of contact surfaces 4122 is respectively arranged on the opposite side of the other of the pair of extensions 422. It should be understood that in other embodiments, each pair of contact surfaces 4122 can also be in other appropriate positional relationship with the elastic member 42, and the embodiments of the present disclosure are not limited thereto.
[0046] Figures 4 to 8 The working state schematic diagram of the electrical switch 100 according to some embodiments of the present disclosure is shown. In the following, the working process of the electrical switch 100 will be described in combination with Figure 1 , Figures 4 to 8 The working process of the electrical switch 100 will be described, in which the pair of actuating assemblies 2 can be synchronously rotated.
[0047] As Figure 1As shown, the paired actuating components 2 begin to rotate and store energy from the energy release position. After the paired actuating components 2 have rotated past the dead center position by a first angle, for example, 5° to 6° past the dead center position, the first output shaft 21 of one of the actuating components 2 (referred to as the first actuating component for convenience) just contacts the elastic element 42 of the buffer component 4. Of course, the first actuating component can also contact the elastic element 42 before rotating to the dead center position; the embodiments of this disclosure do not limit this. At the same time, the buffer component 4 is limited by one of the limiting components 31 (referred to as the first limiting component for convenience).
[0048] like Figure 1 and Figure 4 As shown, the first actuation component releases energy and presses the elastic member 42 through the first output shaft 21, causing the elastic member 42 to deform. In this way, since the energy of the first actuation component can be partially stored in the elastic member 42, the impact force between the buffer component 4 and the first limiting member is significantly reduced, thereby preventing damage to the first limiting member.
[0049] like Figure 4 and Figure 5 As shown, the driving component 32 drives the pair of limiting components 31 to move and can release the limiting of the buffer component 4. The energy stored in the first actuating component and the energy stored in the elastic component 42 can drive the buffer component 4 to move. After the pair of actuating components 2 has finished releasing energy, they return to the energy release position.
[0050] like Figure 5 and Figure 6 As shown, the paired actuating components 2 start rotating in the opposite direction from the energy release position and re-store energy. After the paired actuating components 2 have rotated past the dead center position by a first angle, for example, 5° to 6° past the dead center position, the first output shaft 21 of the other actuating component 2 in the paired actuating components 2 (referred to as the second actuating component for convenience) just contacts the elastic element 42 of the buffer component 4; of course, the second actuating component can also contact the elastic element 42 before rotating to the dead center position, and the embodiments of this disclosure do not limit this. At the same time, the buffer component 4 is limited by the other limiting element 31 in the paired limiting elements 31 (referred to as the second limiting element for convenience).
[0051] like Figure 6 and Figure 7 As shown, the second actuation component releases energy and presses the elastic member 42 through the first output shaft 21, causing the elastic member 42 to deform. In this way, since the energy of the second actuation component can be partially stored in the elastic member 42, the impact force between the buffer component 4 and the second limiting member is significantly reduced, thereby preventing damage to the second limiting member.
[0052] like Figure 7 and Figure 8As shown, the driving member 32 drives the pair of limiting members 31 to act and can release the limiting of the buffer assembly 4, the energy stored by the second actuating assembly and the energy stored by the elastic member 42 can drive the buffer assembly 4 to act, and the pair of actuating assemblies 2 returns to the energy releasing position again, to periodically reciprocate.
[0053] Embodiments of the present disclosure have been described above, the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those skilled in the art without departing from the scope and spirit of the described embodiments. The selection of the terms used herein is intended to best explain the principles, practical applications or technical improvements in the market of the embodiments, or to enable other ordinary skilled in the art to understand the embodiments disclosed herein.
Claims
1. An electrical switch (100), characterized in that The electrical switch (100) comprises: a bracket (1); a pair of actuating assemblies (2) each rotatably arranged on the bracket (1) and each comprising a first output shaft (21); a locking assembly (3) coupled to the bracket (1) and comprising a pair of limiting members (31); and a buffering assembly (4) rotatably arranged on the bracket (1) and comprising a mounting member (41) capable of being limited by the pair of limiting members (31) and a resilient member (42) coupled to the mounting member (41) and located on a rotation path of the first output shaft (21) of the pair of actuating assemblies (2) to be pressed by the first output shaft (21) of the pair of actuating assemblies (2) to be deformed.
2. The electrical switch (100) according to claim 1, characterized in that The resilient member (42) comprises a bending portion (421) and a pair of extending portions (422) coupled to the bending portion (421), the pair of extending portions (422) are oppositely arranged and spaced apart from each other, and each of the pair of extending portions (422) is capable of being pressed by the first output shaft (21) of the corresponding actuating assembly (2).
3. The electrical switch (100) according to claim 2, characterized in that Each of the pair of extending portions (422) comprises an avoiding hole (4221), and the end of the pair of actuating assemblies (2) is adapted to be received in the corresponding avoiding hole (4221).
4. The electrical switch (100) according to claim 2, characterized in that The mounting member (41) comprises a first portion (411) and a second portion (412) coupled to the first portion (411), the bending portion (421) is arranged around the first portion (411), the second portion (412) is provided with a movement space (101) therein, and the pair of extending portions (422) are located in the movement space (101), wherein in the case that each of the pair of extending portions (422) is pressed by the first output shaft (21) of the corresponding actuating assembly (2), the pair of extending portions (422) are capable of moving in the movement space (101).
5. The electrical switch (100) according to claim 4, characterized in that The second portion (412) comprises a pair of limiting shafts (4121), the pair of extending portions (422) are arranged between the pair of limiting shafts (4121) and each comprises a bending end (4222) facing away from the bending portion (421), and the bending end (4222) is capable of being limited by the limiting shaft (4121).
6. The electrical switch (100) according to claim 4, characterized in that The mounting member (41) further comprises a third portion (413) coupled to a side of the second portion (412) facing away from the first portion (411) and capable of cooperating with the pair of limiting members (31).
7. The electrical switch (100) according to claim 4, characterized in that The second part (412) comprises two pairs of contact surfaces (4122), one pair of contact surfaces (4122) of the two pairs of contact surfaces (4122) is adjacent to one of the pair of extensions (422), the other pair of contact surfaces (4122) of the two pairs of contact surfaces (4122) is adjacent to the other of the pair of extensions (422), wherein during the process that the pair of extensions (422) are pressed by the first output shaft (21) of the corresponding actuating assembly (2) respectively, the first output shaft (21) of the pair of actuating assemblies (2) can move to the position in contact with the corresponding pair of contact surfaces (4122) respectively.
8. The electrical switch (100) according to claim 7, characterized in that The buffer assembly (4) further comprises a rotating shaft (43) coupled to the first part (411), the rotating shaft (43) is coupled to the support (1) so that the buffer assembly (4) is rotatably arranged on the support (1).
9. The electrical switch (100) according to claim 8, characterized in that Along the axial direction of the rotating shaft (43), one pair of contact surfaces (4122) of the two pairs of contact surfaces (4122) is arranged on the opposite side of one of the pair of extensions (422) respectively, and the other pair of contact surfaces (4122) of the two pairs of contact surfaces (4122) is arranged on the opposite side of the other of the pair of extensions (422) respectively.
10. The electrical switch (100) according to claim 7, characterized in that The buffer assembly (4) further comprises a second output shaft (44) coupled to the second part (412).