Energy storage type turnover structure and change-over switch
By adopting an energy storage flip structure in the conversion switch, the energy storage and elastic potential energy of the flip spring drive the flip lever to quickly rotate, and the rapid opening and closing of the moving contacts is solved, which solves the problem of difficult to take into account the safety and miniaturization of the conversion switch, and realizes a low-cost manufacturing and efficient and safe conversion switch.
Patent Information
- Application Number
- CN202420634200.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-28
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2034-03-28
AI Technical Summary
It is difficult to take into account the safety requirements of the switch, the development requirements of miniaturization and the low-cost manufacturing requirements, especially when the moving contacts are opened and closed, it is easy to generate arcs, resulting in safety hazards.
The energy storage flip structure is adopted, and the center shaft, flip lever and flip spring can quickly switch and close the moving contact between different power supplies through the coordination of the central axis, flip lever and flip spring. The energy storage and elastic potential energy of the flip spring drive the flip lever to quickly rotate to complete the opening and closing operation of the moving contact.
The rapid opening and closing of the moving contacts is realized, which reduces the requirements for the driving force size and speed, avoids the use of high-performance, large-volume, and high-cost electric mechanisms, and improves the safety of the switch and the possibility of miniaturization.
Smart Images
Figure CN222637130U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of low-voltage transfer switches, and in particular to an energy storage type flip structure and a transfer switch. Background Art
[0002] The opening and closing of the transfer switch is generally achieved by rotating the moving contact. When the moving contact is opened and closed, the freed electrons in the moving contact itself and the medium around the contact (such as air medium, etc.) are prone to arcing under the action of voltage or current, causing safety hazards. One way to reduce the probability of arcing is to speed up the opening and closing speed of the moving contact. However, this has high requirements for the electric mechanism that drives the moving contact. The electric mechanism must have sufficient power and speed. This type of electric mechanism has high performance, large size, and high cost, which is not conducive to the miniaturization development requirements and low-cost manufacturing requirements of the transfer switch. Utility Model Content
[0003] The present application aims to provide an energy storage type flip structure and a switching switch to solve the problem that the safety requirements of the switching switch are difficult to balance with the requirements of miniaturization development and low-cost manufacturing.
[0004] The embodiment of the present application is implemented as follows:
[0005] In a first aspect, an embodiment of the present application provides an energy storage type flip structure for driving a moving contact of a transfer switch to switch a closing position between a first power source and a second power source, wherein the energy storage type flip structure comprises:
[0006] The central shaft reciprocates around its own central axis;
[0007] A first transmission member is fixedly arranged relative to the central axis and is provided with a flip spring fixing portion;
[0008] a flip lever rotatably disposed on the central axis and provided with a flip spring mounting portion, the flip lever being used to drive the moving contact and having a first rotation position for closing the moving contact with the first power source and a second rotation position for closing the moving contact with the second power source;
[0009] A flip spring, two ends of which are respectively connected to the flip spring fixing portion and the flip spring mounting portion;
[0010] Among them, the flip spring mounting portion and the central axis have a first connecting line, and the flip spring fixing portion reciprocates along the central axis from one side of the first connecting line to the other side. The flip spring is configured to reach the dead point and compress to store energy when the flip spring fixing portion is located on the first connecting line, and to drive the flip lever to rotate in the opposite direction relative to the first transmission member when the flip spring fixing portion deviates from the first connecting line to switch the first rotation position and the second rotation position.
[0011] In an embodiment of the present application, the flip spring fixing portion is closer to the central axis than the flip spring mounting portion.
[0012] In an embodiment of the present application, the flip spring mounting portion is arranged on a side of the flip lever facing the first transmission member.
[0013] In one embodiment of the present application, the flip lever includes a first rod and a second rod, the first rod and the second rod are arranged on the central axis at intervals along the central axis and are connected through the flip spring mounting portion; the first transmission member is arranged between the first rod and the second rod.
[0014] In one embodiment of the present application, the flip lever is provided with a flip lever mounting hole, the flip lever mounting hole is sleeved on the central axis, the two ends of the flip lever extend to the symmetrical sides of the flip lever mounting hole respectively, and the two ends of the flip lever are provided with the flip spring mounting parts respectively;
[0015] The first transmission member includes two flip spring fixing parts, the two flip spring fixing parts correspond to the two flip spring mounting parts respectively, and the number of the flip springs is two correspondingly arranged.
[0016] In one embodiment of the present application, the distances between the two flip spring mounting portions and the flip lever mounting hole are equal.
[0017] In one embodiment of the present application, the energy storage flip structure further includes:
[0018] The first side plate is provided with a first through hole, a first flip limit axis and a second flip limit axis, the central axis is installed in the first through hole, the first flip limit axis and the second flip limit axis are located on the rotation path of the flip lever, the first flip limit axis is configured to position the flip lever at the first rotation position, and the second flip limit axis is configured to position the flip lever at the second rotation position.
[0019] In one embodiment of the present application, the energy storage flip structure further includes:
[0020] The second side plate is spaced apart from the first side plate, the second side plate is provided with a second through hole, the central axis is also installed in the second through hole, and the first transmission member, the flip lever and the flip spring are arranged between the first side plate and the second side plate.
[0021] In one embodiment of the present application, the energy storage flip structure further includes:
[0022] A second transmission member is fixedly arranged relative to the central axis and has a first flip limiter and a second flip limiter;
[0023] The second side plate is also provided with a third flip limit shaft, and the third flip limit shaft is located between the first flip limit part and the second flip limit part. When the flip lever is located at the first rotation position, the first flip limit part abuts against the third flip limit shaft, and when the flip lever is located at the second rotation position, the second flip limit part abuts against the third flip limit shaft.
[0024] In an embodiment of the present application, the second transmission member is arranged on a side of the second side plate facing away from the first side plate.
[0025] In one embodiment of the present application, the central axis includes a first section, a second section, a third section, a fourth section and a fifth section, and the first section, the fifth section, the fourth section, the second section and the third section are arranged in sequence along the central axis, and a shoulder is formed between two adjacent sections;
[0026] The first section is penetrated through the first through hole, the third section is penetrated through the second through hole, the second section and the fifth section are special-shaped columns, the fourth section is a cylinder, the first transmission member is arranged on the fifth section, the second transmission member is arranged on the second section, and the flip lever is arranged on the fourth section.
[0027] In a second aspect, an embodiment of the present application provides a transfer switch, comprising:
[0028] The moving contact has a first closing position and a second closing position;
[0029] The energy storage type flip structure as described in any one of the first aspects, wherein the flip lever of the energy storage type flip structure is transmission-connected with the moving contact to drive the moving contact to switch between the first closing position and the second closing position.
[0030] In one embodiment of the present application, the conversion switch further includes:
[0031] The electric mechanism comprises a first lever, a connecting rod and a first electromagnet, wherein the first lever is fixedly arranged relative to the central axis and has a third sliding groove, the first electromagnet has a first iron core that can be extended and retracted in a direction perpendicular to the central axis, one end of the connecting rod is slidably connected to the third sliding groove, and the other end of the connecting rod is rotatably connected to the first iron core;
[0032] The first electromagnet is configured to act on one end of the third slide slot through the connecting rod when energized to pull the first lever and the central axis to rotate in the positive direction, and to drive the connecting rod to move to the other end of the third slide slot when powered off.
[0033] Beneficial effects:
[0034] The technical solution provided in the embodiment of the present application only requires applying a relatively small force to the central axis at a slower speed to drive the first transmission member to rotate, so that the flip spring fixing part gradually approaches the first connecting line between the flip spring mounting part and the central axis, so that the distance between the flip spring fixing part and the flip spring mounting part is gradually shortened and the flip spring is compressed. When the flip spring fixing part reaches the first connecting line, the compression of the flip spring is the largest, and the elastic force of the flip spring reaches the dead point along the first connecting line. At this time, when the flip spring fixing part continues to rotate and deviates from the first connecting line, the flip spring fixing part passes the dead point and quickly releases elastic potential energy, converts the elastic potential energy into a larger torque and a faster speed to provide it to the flip lever, thereby achieving the effect of increasing the torque and speed, prompting the flip lever to rotate in the opposite direction relative to the first transmission member, and realizing rapid opening and / or closing of the switch.
[0035] The transfer switch provided by the present application is provided with a flip structure, and only a small force is provided at a slow speed to drive the flip lever to rotate quickly, thereby achieving the purpose of driving the moving contact to open and close quickly through the flip lever. The technical solution of the present application has low requirements on the size and speed of the driving force, and does not require the configuration of a high-performance, large-volume, and high-cost electric mechanism. At the same time, it can also achieve the rapid opening and closing of the moving contact, achieving the technical effect of taking into account the safety requirements of the transfer switch and the requirements of miniaturization development and low-cost manufacturing. BRIEF DESCRIPTION OF THE DRAWINGS
[0036] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.
[0037] Figure 1 A schematic diagram of a flipping mechanism provided in an embodiment of the present application;
[0038] Figure 2 A schematic diagram of a central axis provided in an embodiment of the present application;
[0039] Figure 3 An assembly diagram of a first side panel and a second side panel provided in an embodiment of the present application;
[0040] Figure 4 A schematic diagram of a left side panel provided in an embodiment of the present application;
[0041] Figure 5 A schematic diagram of the right side panel provided in an embodiment of the present application;
[0042] Figure 6 A schematic diagram showing that the flip lever provided in the embodiment of the present application is located at the first rotation position and the flip spring is at the dead point;
[0043] Figure 7 A process diagram of the flip spring provided in the embodiment of the present application releasing energy to drive the flip lever to turn to the second rotation position;
[0044] Figure 8 A schematic diagram of a flip lever provided in an embodiment of the present application in a second rotation position;
[0045] Fig. 9 A schematic diagram of a flip lever provided in an embodiment of the present application;
[0046] Fig.10 A schematic diagram of a second transmission member provided in an embodiment of the present application;
[0047] Fig.11 A schematic diagram of the electric mechanism of the transfer switch provided in an embodiment of the present application (the connecting rod is fitted to the upper end of the third slide slot);
[0048] Fig.12 A schematic diagram of a first electromagnet provided in an embodiment of the present application;
[0049] Fig.13 A schematic diagram of a second transmission member provided in an embodiment of the present application (the first flip limit portion abuts against the third flip limit shaft);
[0050] Fig.14 A schematic diagram of a first electromagnet driving a first transmission member to rotate counterclockwise provided in an embodiment of the present application;
[0051] Fig.15 A schematic diagram of a second transmission member provided in an embodiment of the present application (the second flip limit portion abuts against the third flip limit shaft);
[0052] Fig.16 A schematic diagram of the electric mechanism of the transfer switch provided in the embodiment of the present application (the connecting rod is fitted in the lower end of the third slide slot);
[0053] Fig.17 A schematic diagram of a first electromagnet driving a first transmission member to rotate clockwise provided in an embodiment of the present application;
[0054] Fig.18 A schematic diagram showing that the flip lever provided in the embodiment of the present application is located at the second rotation position and the flip spring is at the dead point;
[0055] Fig.19 A diagram showing a process in which the flip spring provided in an embodiment of the present application releases energy to drive the flip lever to rotate to the first rotation position. DETAILED DESCRIPTION
[0056] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.
[0057] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.
[0058] The present application provides an energy storage type flip structure and a conversion switch. The energy storage type flip structure is used to drive the moving contact of the conversion switch to switch the closing position between a first power source and a second power source, and can quickly switch the closing position through a smaller and slower power.
[0059] like Figure 1 As shown, the energy storage type flip mechanism includes a central axis ZXZ, a first transmission member B02, a flip lever GG01 and a flip spring TH01.
[0060] The center axis ZXZ is used to connect to an external power source, such as an electric mechanism. The center axis ZXZ can reciprocate around its own center axis ZXZ line.
[0061] like Figure 2As shown, the central axis ZXZ includes the first section ZXZ.1, the second section ZXZ.2, the third section ZXZ.3, the fourth section ZXZ.4 and the fifth section ZXZ.5. Along the central axis ZXZ line are the first section ZXZ.1, the fifth section ZXZ.5, the fourth section ZXZ.4, the second section ZXZ.2 and the third section ZXZ.3, among which the fourth section ZXZ.4 has the largest cross-sectional area, the fifth section ZXZ.5 has a cross-sectional area smaller than the fourth section ZXZ.4 and larger than the first section ZXZ.1, and the second section ZXZ.2 has a cross-sectional area smaller than the fourth section ZXZ.4 and larger than the third section ZXZ.3, thereby forming a shoulder between two adjacent sections.
[0062] Alternatively, if Figure 3 As shown, the energy storage type flip mechanism further includes a first side plate ZCB and a second side plate YCB, which are spaced apart to form a space for accommodating the first transmission member B02, the flip lever GG01 and the flip spring TH01. Figure 4 As shown, the first side plate ZCB is provided with a first through hole ZCB.1, as shown in FIG. Figure 5 As shown, the second side panel YCB is provided with a second through hole YCB.1, and the center axis ZXZ passes through the first side panel ZCB and the second side panel YCB, wherein the first section ZXZ.1 extends from the first through hole ZCB.1, the second section ZXZ.2 and the third section ZXZ.3 extend from the second through hole YCB.1, and the fourth section ZXZ.4 and the fifth section ZXZ.5 are located between the first side panel ZCB and the second side panel YCB.
[0063] The first transmission member B02 is fixed relative to the central axis ZXZ and is provided with a flip spring fixing portion B02.2. Specifically, the fifth section ZXZ.5 is a special-shaped column, the first transmission member B02 is provided on the fifth section ZXZ.5, and the first transmission member B02 has a special-shaped hole adapted to the fifth section ZXZ.5, so that the first transmission member B02 can rotate synchronously with the central axis ZXZ. The edge of the first transmission member B02 extends radially to form a flip spring fixing portion B02.2.
[0064] The flip lever GG01 is rotatably arranged on the central axis ZXZ, and a flip spring mounting portion GG01.2 is provided on the flip lever GG01. Specifically, the fourth section ZXZ.4 is a cylinder, and the flip lever GG01 is provided with a flip lever mounting hole GG01.1, and the flip lever mounting hole GG01.1 is sleeved on the fourth section ZXZ.4, so that the flip lever GG01 can rotate circumferentially around the fourth section ZXZ.4. The flip spring mounting portion GG01.2 is formed at the end position of the flip lever GG01 away from the central axis ZXZ.
[0065] The flip lever GG01 is used to drive the moving contact, and has a first rotation position for closing the moving contact with the first power source and a second rotation position for closing the moving contact with the second power source.
[0066] There are many ways to connect the flip lever GG01 to the moving contact. For example, one end of the flip lever GG01 is connected to the moving contact through a linkage component such as a connecting rod LG01 or a gear. Figure 5 As shown, the second side plate YCB is provided with a second notch YCB.2, and the flip lever GG01 is provided with a flip lever protrusion Z12 at the flip lever mounting hole GG01.1. The flip lever protrusion Z12 corresponds to the second notch YCB.2, and the flip lever protrusion Z12 extends out of the second notch YCB.2, and is connected to the moving contact through a linkage component such as a connecting rod LG01 or a gear. Specifically, the second notch YCB.2 is constructed as an arc groove extending circumferentially around the axis of the second through hole YCB.1. When the flip lever GG01 rotates from the first rotation position to the second rotation position around the central axis ZXZ, the flip lever protrusion Z12 slides from one end of the second notch YCB.2 to the other end and drives the moving contact to switch positions. Conversely, when the flip lever GG01 rotates from the second rotation position to the first rotation position around the central axis ZXZ, the flip lever protrusion Z12 slides from the other end of the second notch YCB.2 to one end, driving the moving contact to switch back.
[0067] The linkage assembly between the flip lever GG01 and the moving contact can have a variety of structural forms, and the existing structural form can also be used, which will not be described in detail in this embodiment. Of course, the flip lever GG01 can also be directly connected to the moving contact through the flip lever protrusion Z12, for example, the moving contact is configured to rotate coaxially relative to the central axis ZXZ, and the flip lever protrusion Z12 is fixedly connected to the moving contact.
[0068] The two ends of the flip spring TH01 are respectively connected to the flip spring fixing part B02.2 and the flip spring mounting part GG01.2.
[0069] like Figure 6 As shown, the flip spring mounting part GG01.2 and the central axis ZXZ have a first connecting line BnB, the flip spring fixing part B02.2 reciprocates along the central axis ZXZ from one side of the first connecting line BnB to the other side, and the flip spring TH01 is configured to store energy when the flip spring fixing part B02.2 is located on the first connecting line BnB. Figure 7 and Figure 8 As shown, when the flip spring fixing portion B02.2 deviates from the first connecting line BnB, the flip lever GG01 is driven to rotate in the opposite direction relative to the first transmission member B02 to switch between the first rotation position and the second rotation position.
[0070] The technical solution provided in the embodiment of the present application only requires applying a relatively small force to the central axis ZXZ at a slower speed to drive the first transmission member B02 to rotate, so that the flip spring fixing part B02.2 gradually approaches the first connecting line BnB between the flip spring mounting part GG01.2 and the central axis ZXZ line, so that the distance between the flip spring fixing part B02.2 and the flip spring mounting part GG01.2 is gradually shortened and the flip spring TH01 is compressed. When the flip spring fixing part B02.2 reaches the first connecting line BnB, the compression amount of the flip spring TH01 is the largest, and the elastic force of the flip spring TH01 reaches the dead point along the first connecting line BnB. At this time, when the flip spring fixing part B02.2 continues to rotate and deviates from the first connecting line BnB, the flip spring fixing part B02.2 passes the dead point and quickly releases the elastic potential energy, prompting the flip lever GG01 to rotate in the opposite direction relative to the first transmission member B02, thereby realizing rapid opening and / or closing of the switch.
[0071] like Figure 1 As shown, the flip spring fixing portion B02.2 is closer to the central axis ZXZ than the flip spring mounting portion GG01.2. That is, along the radial direction of the central axis ZXZ, the length of the first transmission member B02 is less than the length of the flip lever GG01, the first transmission member B02 has a small deadweight and is easily driven to rotate by a small force, which can reduce the performance requirements for the power source.
[0072] The flip spring mounting part GG01.2 is arranged on the side of the flip lever GG01 facing the first transmission member B02. This makes the flip spring mounting part GG01.2 correspond to the flip spring fixing part B02.2 in the radial direction of the central axis ZXZ, so that the flip spring TH01 is mainly deflected and compressed on the plane perpendicular to the central axis ZXZ line, simplifies the force line of the flip spring TH01, alleviates the torsion and fatigue problems, and makes the mechanical performance of the flip spring TH01 stable and reliable.
[0073] In some embodiments, Fig. 9As shown, the flip lever GG01 includes a first rod GG01.4 and a second rod GG01.5, the first rod GG01.4 and the second rod GG01.5 are arranged at intervals, and the first rod GG01.4 and the second rod GG01.5 are both provided with a flip lever mounting hole GG01.1, and the flip lever mounting hole GG01.1 is sleeved on the central axis ZXZ, so that the first rod GG01.4 and the second rod GG01.5 can be arranged at intervals on the central axis ZXZ. The flip spring mounting portion GG01.2 is arranged between the first rod GG01.4 and the second rod GG01.5 to connect the first rod GG01.4 and the second rod GG01.5 as a whole. Specifically, one of the first rod GG01.4 and the second rod GG01.5 cooperates with the fourth section ZXZ.4 of the central axis ZXZ, and the other of the first rod GG01.4 and the second rod GG01.5 is sleeved on the fifth section ZXZ.5 of the central axis ZXZ, and the inner wall of the flip lever mounting hole GG01.1 of the other of the first rod GG01.4 and the second rod GG01.5 does not contact the fifth section ZXZ.5; or the fifth section ZXZ.5 is provided with two symmetrical arc surfaces, and the two arc surfaces are slidably matched with the inner wall of the flip lever mounting hole GG01.1 of the other of the first rod GG01.4 and the second rod GG01.5 to play a supporting role, thereby improving the stability of the flip lever GG01 during the rotation process and alleviating the displacement and loosening of the flip lever GG01 due to imbalance.
[0074] The first transmission member B02 is arranged between the first rod GG01.4 and the second rod GG01.5, so that the flip spring fixing part B02.2 corresponds to the flip spring mounting part GG01.2, and the flip spring TH01 moves between the first rod GG01.4 and the second rod GG01.5, thereby playing a protective role in preventing the flip spring TH01 from interfering with the external structure.
[0075] Optionally, the first rod GG01.4 and the second rod GG01.5 both extend radially in all directions at the position of the flip lever mounting hole GG01.1 to form an expansion portion, and the projection of the first transmission member B02 along the direction of the center axis ZXZ line falls within the range of the expansion portion, so as to further ensure that the first transmission member B02 and the flip spring TH01 can move between the first rod GG01.4 and the second rod GG01.5 to prevent interference and make the mechanical structure more stable and reliable.
[0076] In some embodiments, the two ends of the flip lever GG01 extend to the symmetrical sides of the flip lever mounting hole GG01.1 respectively, and the two ends of the flip lever GG01 are respectively provided with a flip spring mounting part GG01.2; the first transmission member B02 includes two flip spring fixing parts B02.2, and the two flip spring fixing parts B02.2 correspond to the two flip spring mounting parts GG01.2 respectively, and the number of the flip springs TH01 is two correspondingly set.
[0077] By arranging the flip springs TH01 on both sides of the central axis ZXZ, the elastic driving force on the flip lever GG01 is increased, so that the position switching of the flip lever GG01 is faster.
[0078] Among them, the distances from the two flip spring mounting parts GG01.2 to the flip lever mounting hole GG01.1 are equal. In other words, the flip lever GG01 and the first transmission member B02 are configured as a symmetrical structure, and two flip springs TH01 are provided to symmetrically connect the flip lever GG01 and the first transmission member B02, which not only increases the elastic driving force on the flip lever GG01, but also makes the force on the flip lever GG01 and the first transmission member B02 more balanced, and is not easy to fatigue or damage during long-term use.
[0079] In some embodiments, the first side panel ZCB is also provided with a first flip limit axis Z03 and a second flip limit axis Z03', the first flip limit axis Z03 and the second flip limit axis Z03' are located on the rotation path of the flip lever GG01, the first flip limit axis Z03 is configured to position the flip lever GG01 at the first rotation position, and the second flip limit axis Z03' is configured to position the flip lever GG01 at the second rotation position.
[0080] Optionally, the first flip limit axis Z03 and the second flip limit axis Z03' may also be arranged on the second side plate YCB. Optionally, the first flip limit axis Z03 and the second flip limit axis Z03' are configured to connect the first side plate ZCB and the second side plate YCB, thereby reducing connecting parts and simplifying the structure.
[0081] In some embodiments, the energy storage flip structure further includes a second transmission member B04, and the second transmission member B04 is fixedly arranged relative to the central axis ZXZ. Figure 2 and Fig.10 As shown, the second transmission member B04 is arranged on the second section ZXZ.2 of the central axis ZXZ, the second section ZXZ.2 is a special-shaped column, and the second transmission member B04 has a special-shaped hole adapted to the second section ZXZ.2, so that the second transmission member B04 can be circumferentially fixed with the central axis ZXZ to achieve synchronous rotation. The second transmission member B04 is provided with a first flip limiter B04.2 and a second flip limiter B04.3.
[0082] like Figure 5 As shown, the second side plate YCB is further provided with a third flip limit axis Z10, which is located between the first flip limit portion B04.2 and the second flip limit portion B04.3, so as to cooperate with the second transmission member B04. When the flip lever GG01 is located at the first rotation position, the first flip limit portion B04.2 abuts against the third flip limit axis Z10, and when the flip lever GG01 is located at the second rotation position, the second flip limit portion B04.3 abuts against the third flip limit axis Z10.
[0083] When the flip spring TH01 releases the elastic force, the flip lever GG01 rotates in the opposite direction of the first transmission member B02 at an accelerated speed under the action of the elastic force, so that the flip lever GG01 finally conflicts with the first flip limit axis Z03 or the second flip limit axis Z03'; and the first transmission member B02, the center axis ZXZ and the second transmission member B04 also rotate in the current direction at an accelerated speed under the action of the elastic force, and the first flip limit part B04.2 or the second flip limit part B04.3 of the second transmission member B04 conflicts with the third flip limit axis Z10. By setting the second transmission member B04 and the third flip limit axis Z10 to cooperate, the maximum rotation angle of the central axis ZXZ and the first transmission member B02 is limited, so that the flip spring TH01 is always in a compressed state, and the force to continue rotating in the current direction is continuously provided to the flip lever GG01, so that the flip lever GG01 abuts against the first flip limit axis Z03 or the second flip limit axis Z03' with a certain pressure, ensuring that the flip lever GG01 is stably positioned, ensuring good contact of the moving contact, and avoiding safety problems such as increased contact resistance and heat due to loose moving contacts and poor contact.
[0084] Optionally, the second transmission member B04 is arranged on a side of the second side plate YCB away from the first side plate ZCB. The second side plate YCB isolates the second transmission member B04 and the flip lever GG01 on both sides to prevent the two from interfering during the rotation process.
[0085] In a second aspect, an embodiment of the present application further provides a transfer switch, the transfer switch comprising a moving contact and the energy storage type flip structure described in any embodiment of the first aspect.
[0086] As mentioned above, the moving contact has a first closing position and a second closing position, and the flip lever GG01 of the energy storage flip structure is transmission-connected to the moving contact to drive the moving contact to switch between the first closing position and the second closing position.
[0087] The conversion switch also includes an electric mechanism, which is fixedly arranged on the first side plate ZCB. The electric mechanism and the flip lever GG01 are respectively located on both sides of the first side plate ZCB. The electric mechanism is used to drive the central axis ZXZ to rotate forward and reverse.
[0088] like Fig.11 As shown, the electric mechanism includes a first lever GG05, a connecting rod LG01 and a first electromagnet CT1.
[0089] The first lever GG05 is fixed relative to the central axis ZXZ and has a third slide groove GG05.2. Specifically, the first section ZXZ.1 of the central axis ZXZ extending out of the first side plate ZCB is a special-shaped column, and the first lever GG05 has a special-shaped hole adapted to the first section ZXZ.1, so that the first lever GG05 can be circumferentially fixed with the central axis ZXZ to achieve synchronous rotation. The first lever GG05 is provided with a third slide groove GG05.2, and the third slide groove GG05.2 extends to both sides of the central axis ZXZ.
[0090] like Fig.12 As shown, the first electromagnet CT1 includes a first iron core CT1.2, a first magnetic yoke CT1.1 and a first return spring CT1.3. The first magnetic yoke CT1.1 is fixedly arranged on the first side plate ZCB, the first iron core CT1.2 is an output component, the first iron core CT1.2 is telescopically arranged on the first magnetic yoke CT1.1, the telescopic direction of the first iron core CT1.2 is perpendicular to the central axis ZXZ line, the first iron core CT1.2 extends out of the first magnetic yoke CT1.1 and approaches the central axis ZXZ in the initial position, the first iron core CT1.2 contracts to the actuation position and moves away from the central axis ZXZ when the first magnetic yoke CT1.1 is energized, and the first return spring CT1.3 is arranged between the first magnetic yoke CT1.1 and the first iron core CT1.2 to provide the first iron core CT1.2 with an elastic force to return to the initial position.
[0091] One end of the connecting rod LG01 is slidably connected to the third slide groove GG05.2, and the other end of the connecting rod LG01 is rotatably connected to the first iron core CT1.2. Therefore, the connecting rod LG01 can swing relative to the first iron core CT1.2 and slide along the third slide groove GG05.2, so that when the first electromagnet CT1 is energized, the connecting rod LG01 can act on one end of the third slide groove GG05.2 to pull the first lever GG05 and the center axis ZXZ to rotate in the forward direction, and drive the connecting rod LG01 to move to the other end of the third slide groove GG05.2 when the power is off.
[0092] Optionally, the electric mechanism further includes a first spring TH04, one end of which is connected to the connecting rod LG01, and the other end of which is connected to the first iron core CT1.2. The connection position between the first spring TH04 and the first iron core CT1.2 is closer to the first magnetic yoke CT1.1 than the connection position between the connecting rod LG01 and the first iron core CT1.2, so that the first spring TH04 provides a pulling force to the connecting rod LG01, so that the connecting rod LG01 has a tendency to maintain the current position, and avoids the connecting rod LG01 from swinging arbitrarily relative to the first iron core CT1.2. Among them, the elastic force of the first spring TH04 is less than the elastic force of the first return spring CT1.3, so that when the first return spring CT1.3 drives the first iron core CT1.2 to return to the initial position, the connecting rod LG01 can overcome the elastic force of the first spring TH04 and swing to the other side of the first iron core CT1.2.
[0093] The energy storage flip structure of the conversion switch provided in the embodiment of the present application drives the moving contact from the first closing position to the second closing position in the following process.
[0094] The initial state when the moving contact is in the first closing position, such as Figure 1 As shown, the flip lever GG01 is in the first rotation position and abuts against the first flip limit axis Z03, and the extension direction of the first transmission member B02 and the second transmission member B04 is opposite to that of the flip lever GG01. Fig.10 and Fig.13 As shown, the first flip limit portion B04.2 of the second transmission member B04 abuts against the third flip limit axis Z10; Fig.11 As shown, the upper end of the first lever GG05 is to the right, the first electromagnet CT1 is powered off, the first iron core CT1.2 is extended and located at the initial position under the action of the first return spring CT1.3, and the connecting rod LG01 swings upward relative to the first iron core CT1.2 and is located at the upper end of the third slide groove GG05.2.
[0095] like Fig.14 As shown, the first magnetic yoke CT1.1 is energized, the first iron core CT1.2 moves toward the actuation position, and the upper end of the first lever GG05 is pulled leftward through the connecting rod LG01, so that the first lever GG05, the center axis ZXZ, and the first transmission member B02 and the second transmission member B04 arranged on the center axis ZXZ rotate counterclockwise. During the counterclockwise rotation of the second transmission member B04, the flip spring fixing part B02.2 of the second transmission member B04 gradually approaches the first connecting line BnB, and the flip spring TH01 is compressed to accumulate elastic force, as shown in FIG. Figure 6 As shown, when the flip spring fixing portion B02.2 is located on the first connecting line BnB, the elastic force accumulated by the flip spring TH01 is the largest, and at this time the direction of the elastic force is along the first connecting line BnB and is at a dead point; Figure 7As shown, the second transmission member B04 continues to rotate, the flip spring fixing portion B02.2 leaves the first connecting line BnB and passes the dead point position, at which time the flip spring TH01 releases elastic potential energy, prompting the flip lever GG01 to rotate rapidly in the clockwise direction.
[0096] like Figure 8 As shown, when the flip lever GG01 reaches the second rotation position, it abuts against the second flip limit axis Z03'. Figure 8 and Fig.15 As shown, the extension direction of the first transmission member B02 and the second transmission member B04 is opposite to the flip lever GG01 again, and the second flip limit part B04.3 of the second transmission member B04 abuts against the third flip limit axis Z10, completing driving the moving contact from the first closing position to the second closing position.
[0097] When the drive is completed, combine Fig.14 As shown, the upper end of the first lever GG05 is to the left, the connecting rod LG01 is located at the upper end of the third slide slot GG05.2, and the angle between the connecting rod LG01 and the third slide slot GG05.2 is greater than 90° and less than 180°. At this time, the first electromagnet CT1 is powered off, and the first reset spring CT1.3 drives the first iron core CT1.2 to reset and generates a component force on the connecting rod LG01 toward the lower end of the third slide slot GG05.2. Finally, as Fig.16 As shown, the upper end of the first lever GG05 is to the left, the first iron core CT1.2 returns to the initial position, and the connecting rod LG01 swings downward and is located at the lower end of the third slide groove GG05.2, preparing for the next switching of the moving contact to the first closing position.
[0098] The energy storage flip structure of the transfer switch provided in the embodiment of the present application drives the moving contact from the second closing position to the first closing position in the following process.
[0099] When the moving contact is in the second closing position, the status of each mechanism has been described above, that is: Figure 8 and Fig.15 As shown, the flip lever GG01 is in the second rotation position and abuts against the second flip limit axis Z03', the extension direction of the first transmission member B02 and the second transmission member B04 is opposite to that of the flip lever GG01, and the second flip limit part B04.3 of the second transmission member B04 abuts against the third flip limit axis Z10; at the same time, the upper end of the first lever GG05 is close to the left, the first electromagnet CT1 is powered off, the first iron core CT1.2 is extended and located at the initial position under the action of the first return spring CT1.3, and the connecting rod LG01 swings downward relative to the first iron core CT1.2 and is located at the lower end of the third slide groove GG05.2.
[0100] like Fig.17As shown, the first magnetic yoke CT1.1 is energized, the first iron core CT1.2 moves toward the actuation position, and the lower end of the first lever GG05 is pulled leftward through the connecting rod LG01, so that the first lever GG05, the center axis ZXZ, and the first transmission member B02 and the second transmission member B04 arranged on the center axis ZXZ rotate clockwise. During the clockwise rotation of the second transmission member B04, the flip spring fixing part B02.2 of the second transmission member B04 gradually approaches the first connecting line BnB, and the flip spring TH01 is compressed to accumulate elastic force, as shown in FIG. Fig.18 As shown, when the flip spring fixing portion B02.2 is located on the first connecting line BnB, the elastic force accumulated by the flip spring TH01 is the largest, and at this time the direction of the elastic force is along the first connecting line BnB and is at a dead point; Fig.19 As shown, the second transmission member B04 continues to rotate, the flip spring fixing portion B02.2 leaves the first connecting line BnB and passes the dead point position, at which time the flip spring TH01 releases elastic potential energy, prompting the flip lever GG01 to rotate rapidly in the clockwise direction.
[0101] When the flip lever GG01 reaches the first rotation position, it abuts against the first flip limit axis Z03 and returns to Figure 1 In the state shown, the first transmission member B02 and the second transmission member B04 return to Fig.10 and Fig.13 In the state shown, the extension direction of the first transmission member B02 and the second transmission member B04 is opposite to the flip lever GG01, and the first flip limit part B04.2 of the second transmission member B04 abuts against the third flip limit axis Z10, completing driving the moving contact from the second closing position to the first closing position.
[0102] When the drive is completed, combine Fig.17 As shown, the upper end of the first lever GG05 is to the right, the connecting rod LG01 is located at the lower end of the third slide slot GG05.2, and the angle between the connecting rod LG01 and the third slide slot GG05.2 is greater than 90° and less than 180°. At this time, the first electromagnet CT1 is powered off, and the first reset spring CT1.3 drives the first iron core CT1.2 to reset and generates a component force on the connecting rod LG01 toward the upper end of the third slide slot GG05.2. Finally, the first electromagnet CT1 returns to Fig.11 In the state shown, the upper end of the first lever GG05 is to the right, the first electromagnet CT1 is de-energized, the first iron core CT1.2 is extended and located at the initial position under the action of the first reset spring CT1.3, and the connecting rod LG01 swings upward relative to the first iron core CT1.2 and is located at the upper end of the third slide groove GG05.2, preparing for the next switching of the moving contact to the second closing position.
[0103] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.
[0104] In the description of this application, it should be noted that if the terms "center", "upper", "lower", "left", "right", "inner", "outer", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the product of the application is usually placed when in use. It is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. In addition, if the terms "first", "second", etc. appear in the description of this application, they are only used to distinguish the description and cannot be understood as indicating or implying relative importance.
[0105] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0106] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. An energy storage type flip structure, used to drive the moving contact of a transfer switch to switch the closing position between a first power source and a second power source, characterized in that: The energy storage flip structure comprises: The central axis (ZXZ) reciprocates around its own central axis (ZXZ); A first transmission member (B02) is fixedly arranged relative to the central axis (ZXZ) and is provided with a turnover spring fixing portion (B02.2); A flip lever (GG01) is rotatably arranged on the central axis (ZXZ) and is provided with a flip spring mounting portion (GG01.2); the flip lever (GG01) is used to drive the moving contact and has a first rotation position for closing the moving contact with the first power source and a second rotation position for closing the moving contact with the second power source; The overturn spring (TH01), two ends of which are respectively connected to the overturn spring fixing part (B02.2) and the overturn spring mounting part (GG01.2); In which, the flip spring mounting part (GG01.2) and the center axis (ZXZ) line have a first connecting line (BnB), the flip spring fixing part (B02.2) reciprocates along the center axis (ZXZ) from one side of the first connecting line (BnB) to the other side, and the flip spring (TH01) is configured to reach the dead point and compress to store energy when the flip spring fixing part (B02.2) is located on the first connecting line (BnB), and drive the flip lever (GG01) to rotate in the opposite direction relative to the first transmission member (B02) when the flip spring fixing part (B02.2) deviates from the first connecting line (BnB) to switch the first rotation position and the second rotation position.
2. The energy storage flip structure according to claim 1, characterized in that: The flip spring fixing portion (B02.2) is closer to the central axis (ZXZ) than the flip spring mounting portion (GG01.2).
3. The energy storage flip structure according to claim 1, characterized in that: The flip spring mounting portion (GG01.2) is arranged on a side of the flip lever (GG01) facing the first transmission member (B02).
4. The energy storage flip structure according to claim 3, characterized in that: The flip lever (GG01) comprises a first rod (GG01.4) and a second rod (GG01.5), wherein the first rod (GG01.4) and the second rod (GG01.5) are arranged on the central axis (ZXZ) at intervals along the central axis (ZXZ) line and are connected via the flip spring mounting portion (GG01.2); The first transmission member (B02) is arranged between the first rod member (GG01.4) and the second rod member (GG01.5).
5. The energy storage flip structure according to claim 1, characterized in that: The flip lever (GG01) is provided with a flip lever mounting hole (GG01.1), the flip lever mounting hole (GG01.1) is sleeved on the central axis (ZXZ), the two ends of the flip lever (GG01) respectively extend to the symmetrical two sides of the flip lever mounting hole (GG01.1), and the two ends of the flip lever (GG01) are respectively provided with the flip spring mounting parts (GG01.2); The first transmission member (B02) comprises two flip spring fixing parts (B02.2), the two flip spring fixing parts (B02.2) respectively correspond to the two flip spring mounting parts (GG01.2), and the number of the flip springs (TH01) is two correspondingly arranged.
6. The energy storage flip structure according to claim 5, characterized in that: The distances between the two flip spring mounting parts (GG01.2) and the flip lever mounting hole (GG01.1) are equal.
7. The energy storage flip structure according to claim 1, characterized in that: The energy storage type flip structure also includes: A first side plate (ZCB) is provided with a first through hole (ZCB.1), a first flip limit axis (Z03) and a second flip limit axis (Z03'); the central axis (ZXZ) is installed in the first through hole (ZCB.1); the first flip limit axis (Z03) and the second flip limit axis (Z03') are located on the rotation path of the flip lever (GG01); the first flip limit axis (Z03) is configured to position the flip lever (GG01) at the first rotation position; and the second flip limit axis (Z03') is configured to position the flip lever (GG01) at the second rotation position.
8. The energy storage flip structure according to claim 7, characterized in that: The energy storage type flip structure also includes: A second side plate (YCB), the second side plate (YCB) is spaced apart from the first side plate (ZCB), the second side plate (YCB) is provided with a second through hole (YCB.1), the center axis (ZXZ) is also installed in the second through hole (YCB.1), the first transmission member (B02), the flip lever (GG01) and the flip spring (TH01) are arranged between the first side plate (ZCB) and the second side plate (YCB).
9. The energy storage flip structure according to claim 8, characterized in that: The energy storage type flip structure also includes: The second transmission member (B04) is fixedly arranged relative to the central axis (ZXZ) and has a first flip limiter (B04.2) and a second flip limiter (B04.3); The second side plate (YCB) is also provided with a third flip limit axis (Z10), and the third flip limit axis (Z10) is located between the first flip limit portion (B04.2) and the second flip limit portion (B04.3); when the flip lever (GG01) is located at the first rotation position, the first flip limit portion (B04.2) abuts against the third flip limit axis (Z10); when the flip lever (GG01) is located at the second rotation position, the second flip limit portion (B04.3) abuts against the third flip limit axis (Z10).
10. The energy storage flip structure according to claim 9, characterized in that: The second transmission member (B04) is arranged on a side of the second side plate (YCB) facing away from the first side plate (ZCB).
11. The energy storage flip structure according to claim 10, characterized in that: The central axis (ZXZ) includes a first section (ZXZ.1), a second section (ZXZ.2), a third section (ZXZ.3), a fourth section (ZXZ.4) and a fifth section (ZXZ.5). The first section (ZXZ.1), the fifth section (ZXZ.5), the fourth section (ZXZ.4), the second section (ZXZ.2) and the third section (ZXZ.3) are arranged along the central axis (ZXZ) in sequence, and a shoulder is formed between two adjacent sections. The first section (ZXZ.1) is inserted into the first through hole (ZCB.1), the third section (ZXZ.3) is inserted into the second through hole (YCB.1), the second section (ZXZ.2) and the fifth section (ZXZ.5) are special-shaped columns, the fourth section (ZXZ.4) is a cylinder, the first transmission member (B02) is arranged on the fifth section (ZXZ.5), the second transmission member (B04) is arranged on the second section (ZXZ.2), and the flip lever (GG01) is arranged on the fourth section (ZXZ.4).
12. A transfer switch, characterized in that: include: The moving contact has a first closing position and a second closing position; The energy storage type flip structure described in any one of claims 1 to 11, wherein the flip lever (GG01) of the energy storage type flip structure is transmission-connected to the moving contact to drive the moving contact to switch between a first closing position and a second closing position.
13. The transfer switch according to claim 12, characterized in that: The conversion switch also includes: The electric mechanism comprises a first lever (GG05), a connecting rod (LG01) and a first electromagnet (CT1), wherein the first lever (GG05) is fixedly arranged relative to the central axis (ZXZ) and has a third sliding groove (GG05.2), the first electromagnet (CT1) has a first iron core (CT1.2) which can be extended and retracted in a direction perpendicular to the central axis (ZXZ), one end of the connecting rod (LG01) is slidably connected to the third sliding groove (GG05.2), and the other end of the connecting rod (LG01) is rotatably connected to the first iron core (CT1.2); The first electromagnet (CT1) is configured to act on one end of the third slide groove (GG05.2) through the connecting rod (LG01) when power is on to pull the first lever (GG05) and the center axis (ZXZ) to rotate in the positive direction, and to drive the connecting rod (LG01) to move to the other end of the third slide groove (GG05.2) when power is off.