Driving mechanism of dual-power change-over switch
By designing the energy storage components of V-shaped or U-shaped stroke slots in the dual power conversion switch, the tensile or compression potential energy of the elastic parts is used to solve the problem of unfast operation of the traditional driving mechanism, and the rapid switching and in-place of the handle are achieved, and the operation efficiency is improved.
Patent Information
- Application Number
- CN202422218605.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-10
- Publication Date
- 2025-07-29
- Estimated Expiration
- 2034-09-10
AI Technical Summary
The drive mechanism of the traditional dual power switch is not fast enough to ensure the handle is rotated in place.
A driving mechanism including a handle, a moving contact rotor and an energy storage assembly is designed. The energy storage assembly consists of an elastic member and a positioning column. The stroke groove is designed as a V-shaped or U-shaped. By limiting the position of the limit column, the elastic member is stretched or compressed at different positions, providing the potential energy of the rotating handle and ensuring rapid switching.
The handle is quickly operated and ensured rotation in place, improving the operating efficiency of the dual power conversion switch.
Smart Images
Figure CN223167391U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of change - over switches, in particular to a driving mechanism of a dual - power change - over switch. Background Art
[0002] A dual - power change - over switch is a switch that switches one power supply to another; generally, dual - power change - over switches are widely used in important places where power outages are not allowed, such as high - rise buildings, communities, hospitals, airports, docks, fire protection, metallurgy, chemical industry, textiles, etc. Traditional dual - power change - over switches mainly include a housing, a driving device, static contact pieces, and moving contact pieces. The driving device mainly includes a driving mechanism and a transmission mechanism. The driving mechanism drives the moving contact piece to move through the transmission mechanism, so that the moving contact piece contacts or separates from the static contact piece to achieve the purpose of on - off.
[0003] The applicant of the present invention improves the design of the driving mechanism of the dual - power change - over switch, so that the cooperation between the handle and the moving contact driving structure is simple, the operation is faster, and it can ensure that the rotation is in place. Summary of the Utility Model
[0004] The purpose of the present invention is to overcome the disadvantages and deficiencies existing in the prior art, and provide a driving mechanism of a dual - power change - over switch. The technical solution adopted by the present invention is as follows:
[0005] A driving mechanism of a dual - power change - over switch includes a handle and a moving contact assembly. The moving contact assembly includes a moving contact runner and a moving contact arranged on the moving contact runner. The handle is in linkage cooperation with the moving contact runner; the handle has a positioning rotating shaft, and an energy - storage assembly is arranged in cooperation with the handle. The energy - storage assembly includes an elastic member and a positioning post. One end of the elastic member is connected to a limit post on the handle, and the other end is connected to the positioning post; the handle can rotate around the positioning rotating shaft, and its rotation range is limited by the limit post in a travel groove. The travel groove is V - shaped or U - shaped. The distance from the middle section of the travel groove to the positioning post is a, and the distance from both ends of the travel groove to the positioning post is b, and a≠b. When the handle rotates to the middle section of the travel groove, the elastic member is driven by the limit post to be compressed or stretched, so as to have the potential energy to drive the handle to displace towards both ends of the travel groove.
[0006] For example, an inverted V - shaped travel groove can be set, so that the elastic member is stretched when the handle rotates to the middle section of the travel groove, thereby driving the handle to displace towards both ends of the travel groove, which is convenient for the user to quickly rotate the handle in place.
[0007] Or, the travel groove is in a positive V - shape, so that the elastic member is compressed when it displaces to the middle section of the travel groove, thereby having the potential energy to drive the handle to displace towards both ends of the travel groove.
[0008] Preferably, a>b, and a is greater than the natural length of the elastic member (that is, the length of the elastic member in the non - stretched or non - compressed state).
[0009] Preferably, the handle is linked to a first gear, the handle drives the moving contact runner through the first gear, and the positioning rotating shaft of the handle is simultaneously the rotating shaft of the first gear.
[0010] Preferably, a limiting hole is formed in the base of the handle, one end of the elastic member away from the positioning post is connected to a limiting post, and the limiting post simultaneously passes through the limiting hole and the stroke groove; when the handle rotates around the positioning rotating shaft and drives the limiting post to displace to the middle section of the stroke groove, the limiting post displaces relative to the limiting hole and stretches or compresses the elastic member, so that the elastic member has the potential energy to drive the limiting post and the handle to rotate to both ends of the stroke groove.
[0011] Preferably, the length of the limiting hole is not less than the difference between a and b, so as to ensure that the limiting post displaces in the limiting hole while displacing along the stroke groove to stretch or compress the spring.
[0012] Preferably, the moving contact runner is drivingly connected to a second gear, and the first gear and the second gear are coaxially drivingly matched to drive the moving contact runner to drive the moving contact to contact or separate from the static contact.
[0013] Preferably, the moving contact runner and the second gear are respectively located inside the first and second chambers of the housing, and the first and second chambers are separated by a partition, the first gear and the second gear are located in the first chamber, and the moving contact runner, the moving contact, and the static contact are located in the second chamber.
[0014] Preferably, two moving contacts are symmetrically arranged on the moving contact runner, and the two moving contacts rotate synchronously with the moving contact runner to realize contact or separation from the static contact.
[0015] This dual-power transfer switch further includes an electric drive assembly, the electric drive assembly includes a rack and armatures connected to both ends of the rack, and coils respectively cooperating with the armatures at both ends of the rack, and the moving contact runner is linked with the rack.
[0016] Preferably, the moving contact runner is coaxially drivingly connected to a second gear, the second gear meshes with the rack, and the armature cooperates with the coil to energize the coil to drive the rack to displace laterally and drive the second gear and the moving contact runner to rotate.
[0017] The beneficial effects of the present utility model are as follows: By providing a V-shaped or U-shaped stroke groove for limiting the stroke of the handle, and making the distance from the middle section of the stroke groove to the positioning post be a, and the distance from both ends of the stroke groove to the positioning post be b, and a≠b, when the handle rotates to the middle section of the stroke groove, the elastic member is compressed or stretched, so as to have the potential energy to drive the handle to displace to both ends of the stroke groove, which is convenient for borrowing force to rotate the handle during manual operation to realize quick switching and ensure accurate rotation to the end. Description of the Drawings
[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, obtaining other drawings based on these drawings still belongs to the scope of the present invention.
[0019] Figure 1 Schematic diagram of the structure in the first chamber of Embodiment 1;
[0020] Figure 2 Schematic diagram of the structure in the second chamber of Embodiment 1 (the handle is located at the right end);
[0021] Figure 3 Schematic diagram of the structure in the second chamber of Embodiment 1 (the handle is located at the left end);
[0022] Figure 4 Stereogram of Embodiment 1 (the outer shell is not shown);
[0023] Figure 5 Another perspective stereogram of Embodiment 1 (the outer shell is not shown);
[0024] Figure 6 Plan view of the cooperation between the handle, the first gear, the second gear and the rack;
[0025] Figure 7 Stereogram of the cooperation between the handle, the first gear, the second gear and the rack;
[0026] In the figure, handle - 1, first gear - 11, partition - 101, travel slot - 12, limit hole - 131, limit post - 132, moving contact runner - 21, moving contact - 211, second gear - 22, elastic member - 31, positioning post - 32, static contact - 4, rack - 51, armature - 52. Detailed implementation manners
[0027] To make the objectives, technical solutions and advantages of the present invention clearer, the following will further describe the present invention in detail in combination with the embodiments and the drawings.
[0028] It should be noted that all the expressions using "first" and "second" in the embodiments of the present invention are used to distinguish two entities or parameters with the same name but different. It can be seen that "first" and "second" are only for the convenience of expression and should not be construed as a limitation on the embodiments of the present invention. This will not be further elaborated in the subsequent embodiments.
[0029] The directional and positional terms mentioned in this utility model, such as "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "top", "bottom", "side", etc., are only references to the directions or positions in the attached drawings. Therefore, the directional and positional terms used are for the purpose of explaining and understanding this utility model, rather than limiting the scope of protection of this utility model.
[0030] Embodiment 1
[0031] As Figures 1-3 shown, the driving mechanism of the dual-power conversion switch includes a handle 1 and a moving contact assembly. The moving contact assembly includes a moving contact runner 21 and a moving contact 211 arranged on the moving contact runner 21. The handle 1 is in linkage cooperation with the moving contact runner 21. The handle 1 has a positioning rotating shaft, and the handle 1 is provided with an energy storage assembly in cooperation. The energy storage assembly includes an elastic member 31 and a positioning post 32 in the housing. One end of the elastic member 31 is connected to the handle 1, and the other end is connected to the positioning post 32.
[0032] The handle 1 is rotatable around the positioning rotating shaft, and the rotation range is limited to the travel groove 12. The travel groove 12 is in a V shape or a U shape. The distance from the middle section of the travel groove 12 to the positioning post 32 is a, and the distances from both ends of the travel groove 12 to the positioning post 32 are b, and a ≠ b. A limiting hole 131 is opened at the base of the handle 1. One end of the elastic member 31 away from the positioning post 32 is connected to a limiting post 132. The limiting post 132 passes through the limiting hole 131 and the travel groove 12 at the same time. When the handle 1 rotates around the positioning rotating shaft and drives the limiting post 132 to displace to the middle section of the travel groove 12, the limiting post 132 displaces relative to the limiting hole 131 and stretches the elastic member 31, so that the elastic member 31 has the potential energy to drive the limiting post 132 and the handle 1 to rotate to both ends of the travel groove 12.
[0033] In this embodiment, the elastic member is a spring (tension spring), and the length of the limiting hole 131 is not less than the difference between a and b to ensure that the limiting post 132 displaces in the limiting hole 131 while displacing along the travel groove 12 to stretch the spring.
[0034] Referring to the attached Figure 2 shown, the travel groove is an inverted V shape. During the process of the handle 1 rotating from right to left to the middle section of the travel groove 12, the limiting post 132 displaces in the limiting hole 131 while displacing along the travel groove, and the spring is stretched and stores energy by the limiting post 132. When the handle 1 rotates beyond the vertex of the V-shaped travel groove, the elastic member retracts and releases energy, pulls the limiting post 132, and drives the handle 1 to displace to the left side of the travel groove 12 to Figure 3 the position shown, which is convenient for the user to borrow force to rotate the handle and ensure that the handle rotates in place.
[0035] The above a > b, and a is greater than the natural length of the elastic member 31 to ensure that the spring is stretched.
[0036] Further, the handle 1 is linked to the first gear 11. The handle 1 drives the moving contact runner 21 through the first gear 11, and the positioning rotating shaft of the handle 1 is simultaneously the rotating shaft of the first gear 11. The moving contact runner 21 is drivingly connected to the second gear 22, and the first gear 11 and the second gear 22 are coaxially drivingly connected to drive the moving contact runner 21 to drive the moving contact 211 to contact or separate from the static contact 4.
[0037] Refer to the attached Figure 4 As shown, the device further includes an electric drive assembly to achieve the conversion of electric drive. The electric drive assembly includes a rack 51 and armatures 52 connected to both ends of the rack 51, and coils respectively cooperating with the armatures 52 at both ends of the rack 51. The moving contact runner 21 is coaxially drivingly connected to the second gear 22, the second gear 22 meshes with the rack 51, and the armature 52 cooperates with the coil to energize the coil to drive the rack 51 to displace laterally and drive the second gear 22 and the moving contact runner 21 to rotate.
[0038] As Figures 5-7 As shown, the moving contact runner 21 and the second gear 22 are respectively located inside the first and second chambers of the housing, and the first and second chambers are separated by a partition 101. The first gear 11 and the second gear 22, the rack 51, the armatures 52, and the coils of the electric drive assembly are located in the first chamber, and the moving contact runner 21, the moving contact 211, and the static contact 4 are located in the second chamber. Energy storage components are provided on both sides of the partition 101 (in both chambers) to ensure the stable rotation of the driving handle.
[0039] Two moving contacts 211 are symmetrically arranged on the moving contact runner 21. The two moving contacts 211 are actually connected to the same set of conductive sheets. The conductive sheets are installed inside the moving contact runner 21 and both ends thereof extend outside the moving contact runner 21 to form two moving contacts 211. The two moving contacts 211 rotate synchronously with the moving contact runner 21 to achieve contact or separation from the static contact 4.
[0040] The above-disclosed are only the preferred embodiments of the present invention. Of course, the scope of the rights of the present invention cannot be limited thereby. Therefore, equivalent changes made according to the claims of the present invention still fall within the scope covered by the present invention.
Claims
1. Driving mechanism of double power supply transfer switch, including a handle (1) and a moving contact assembly, characterized in that: The moving contact assembly includes a moving contact runner (21) and a moving contact (211) provided on the moving contact runner (21), and the handle (1) is in linkage cooperation with the moving contact runner (21); The handle (1) has a positioning rotating shaft, and the handle (1) is cooperatively provided with an energy storage assembly. The energy storage assembly includes an elastic member (31) and a positioning post (32). One end of the elastic member (31) is connected to a limit post (132) on the handle (1), and the other end is connected to the positioning post (32); The handle (1) is rotatable about the positioning rotating shaft, and its rotation range is limited by the limit post (132) in the travel groove (12). The travel groove (12) is in a V shape or a U shape. The distance from the middle section of the travel groove (12) to the positioning post (32) is a, and the distances from both ends of the travel groove (12) to the positioning post (32) are b, and a≠b. When the handle (1) rotates to the middle section of the travel groove (12), the elastic member (31) is driven by the limit post (132) to be compressed or stretched, so as to have the potential energy to drive the handle (1) to displace towards both ends of the travel groove (12).
2. The driving mechanism of the dual-power conversion switch according to claim 1, characterized in that: a>b, and a is greater than the natural length of the elastic member (31).
3. The driving mechanism of the dual-power conversion switch according to claim 1, characterized in that: The handle (1) is linked to a first gear (11). The handle (1) drives the moving contact runner (21) through the first gear (11), and the positioning rotating shaft of the handle (1) is simultaneously the rotating shaft of the first gear (11).
4. The driving mechanism of the dual-power conversion switch according to claim 1, characterized in that: The handle (1) is provided with a limit hole (131). The limit post (132) passes through the limit hole (131) and the travel groove (12) at the same time. When the handle (1) rotates about the positioning rotating shaft and drives the limit post (132) to displace to the middle section of the travel groove (12), the limit post (132) displaces relative to the limit hole (131) and stretches or compresses the elastic member (31), so that the elastic member (31) has the potential energy to drive the limit post (132) and the handle (1) to rotate to both ends of the travel groove (12).
5. The driving mechanism of the dual-power conversion switch according to claim 4, wherein: The length of the limit hole (131) is not less than the difference between a and b.
6. The drive mechanism of the dual-power conversion switch according to claim 3, characterized in that: The moving contact runner (21) is drivingly connected to a second gear (22). The first gear (11) and the second gear (22) are in driving cooperation to drive the moving contact runner (21) to drive the moving contact (211) to contact or separate from the static contact (4).
7. The driving mechanism of the dual-power conversion switch according to claim 6, characterized in that: The moving contact runner (21) and the second gear (22) are respectively located inside the first and second chambers of the housing, and the first and second chambers are separated by a partition (101). The first gear (11) and the second gear (22) are located in the first chamber, and the moving contact runner (21), the moving contact (211), and the static contact (4) are located in the second chamber.
8. The driving mechanism of the dual-power conversion switch according to claim 7, characterized in that: Two moving contacts (211) are symmetrically arranged on the moving contact runner (21). The two moving contacts (211) rotate synchronously with the moving contact runner (21) to achieve contact or separation from the static contact (4).
9. The driving mechanism of the dual-power conversion switch according to claim 6 or 7, characterized in that: It further includes an electric drive assembly, and the electric drive assembly includes a rack (51), armatures (52) connected to both ends of the rack (51), and coils respectively cooperating with the armatures (52) at both ends of the rack (51), and the moving contact runner (21) is linked with the rack (51).
10. The driving mechanism of the dual-power conversion switch according to claim 9, characterized in that: The second gear (22) meshes with the rack (51), and the armature (52) cooperates with the coil to energize the coil to drive the rack (51) to displace laterally and drive the second gear (22) and the moving contact runner (21) to rotate.