Energy storage mechanism of isolation type change-over switch

Abstract

The utility model relates to the technical field of isolation type change-over switches, in particular to an energy storage mechanism of an isolation type change-over switch, which comprises a first shell and a second shell, the first shell and the second shell are clamped and installed, and an operating mechanism is rotatably connected between the first shell and the second shell. Grooves are formed in the inner wall of the first shell and the inner wall of the second shell, the grooves are arranged to be in a wave shape, an energy storage conversion base is slidably connected between the first shell and the second shell, the upper end of the energy storage conversion base is in driving fit with the operating mechanism, energy storage buckles are fixedly connected to the two sides of the energy storage conversion base, and the energy storage buckles are in clamping fit with the grooves. When the energy storage conversion seat moves up and down, the energy storage buckle and the groove need to be rubbed and extruded, so that the energy storage buckle is deformed, surface-to-surface friction is changed into surface-to-line friction, the reliability of the operating handle on the up-and-down movement of the moving contact is improved, an energy storage and movement mechanism is integrated to replace a spring, the number of parts is reduced, installation is convenient, and the development cost is reduced; the assembly difficulty is reduced.

Description

Technical Field

[0001] The utility model relates to the field of isolating transfer switches, and specifically to an energy storage mechanism of an isolating transfer switch. Background Technique

[0002] Isolating transfer switch appliances are widely used in power systems for switching between two power sources and reliable breaking to ensure the continuity, reliability, and safety of power supply.

[0003] An existing isolating transfer switch, such as a transfer switch proposed in the patent application number "CN202021479403.6", through structures such as a housing, a cam, and a microswitch, and with the design of an intermediate gear during the circuit switching process of the transfer switch, realizes the function of buffering and protecting the electrical appliance.

[0004] However, the transfer switches in the existing technology have problems such as complex structure, high cost, low cost performance, unreliable operation, and complex installation. Therefore, an energy storage mechanism of an isolating transfer switch is proposed. Content of the Utility Model

[0005] The purpose of the utility model is to provide an energy storage mechanism of an isolating transfer switch to solve the problems proposed in the above background technique.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] An energy storage mechanism of an isolating transfer switch includes a first housing and a second housing. The first housing and the second housing are snap-fitted and installed. An operating mechanism is rotatably connected between the first housing and the second housing. Grooves are provided on the inner walls of the first housing and the second housing, and the shape of the grooves is set to be wavy.

[0008] An energy storage conversion seat is slidably connected between the first housing and the second housing. The upper end of the energy storage conversion seat is in driving cooperation with the operating mechanism. Energy storage buckles are fixedly connected to both sides of the energy storage conversion seat, and the energy storage buckles are in snap-fitting with the grooves. A first static contact and a second static contact are snap-fitted inside the first housing. Two sets of moving contacts are slidably connected in the middle of the energy storage conversion seat. A compression spring is snap-fitted between the two sets of moving contacts. The first static contact and the second static contact are both in contact and cooperation with the moving contacts.

[0009] Preferably, four sets of energy storage buckles are provided, and the four sets of energy storage buckles are symmetrically arranged. The four sets of energy storage buckles are respectively in snap-fitting with two sets of grooves.

[0010] Preferably, two sets of first static contacts and two sets of second static contacts are provided. The two sets of first static contacts are respectively located on both sides of the two sets of moving contacts. The two sets of second static contacts are respectively located on both sides of the two sets of moving contacts. The first static contact and the second static contact are respectively located on both sides of the energy storage conversion seat.

[0011] Preferably, the operating mechanism includes a rotating seat rotatably connected between the first housing and the second housing. A handle is fixedly connected to one side of the rotating seat, and a driving seat is fixedly connected to the other side. The driving seat is shaped like an arc.

[0012] Preferably, a chute is formed on the driving seat, and the chute is shaped like an arc. A round shaft is fixedly connected to the upper end of the energy storage conversion seat, and the round shaft is slidably connected to the chute.

[0013] Preferably, an insulating partition is fixedly connected inside the first housing, and the insulating partition is located between two groups of first static contacts.

[0014] Advantages of the present utility model:

[0015] In the present utility model, the operating mechanism controls the up and down sliding of the energy storage conversion seat. The groove is mutually attached to the energy storage buckle of the energy storage conversion seat. When the energy storage conversion seat moves up and down, the energy storage buckle needs to be frictionally extruded with the groove, causing the energy storage buckle to deform. Thus, the friction between surfaces is changed to the friction between a surface and a line, improving the reliability of the operating handle for the up and down movement of the moving contact. The integration of energy storage and the movement mechanism replaces the spring, reducing the number of parts, facilitating installation, reducing development costs, and lowering the assembly difficulty. Description of the drawings

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings;

[0017] Figure 1 is the overall structural schematic diagram of the present utility model;

[0018] Figure 2 is the installation structural schematic diagram of the energy storage conversion seat of the present utility model;

[0019] Figure 3 is the internal structural schematic diagram of the first housing of the present utility model;

[0020] Figure 4 is the sectional structural schematic diagram of the change-over switch of the present utility model;

[0021] Figure 5 is the structural schematic diagram of the energy storage conversion seat of the present utility model;

[0022] The reference numerals in the drawings are as follows:

[0023] 1. First outer shell; 2. Second outer shell; 3. Handle; 31. Rotating seat; 32. Driving seat; 4. Groove; 5. Slide groove; 6. Round shaft; 7. Energy storage conversion seat; 8. Energy storage buckle; 9. Moving contact; 10. Compression spring; 11. First static contact; 12. Second static contact; 13. Insulating partition board. Detailed implementation mode

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0025] An energy storage mechanism of an isolating transfer switch, as Figures 1 - 5 shown, includes a first outer shell 1 and a second outer shell 2. The first outer shell 1 and the second outer shell 2 are snap-fitted and installed. An operating mechanism is rotatably connected between the first outer shell 1 and the second outer shell 2. Grooves 4 are provided on the inner walls of both the first outer shell 1 and the second outer shell 2. The shape of the groove 4 is set to be wavy. An accommodating mechanism is provided between the first outer shell 1 and the second outer shell 2. The operating mechanism is used to control the state of the transfer switch.

[0026] An energy storage conversion seat 7 is slidably connected between the first outer shell 1 and the second outer shell 2. The upper end of the energy storage conversion seat 7 is in driving cooperation with the operating mechanism. Energy storage buckles 8 are fixedly connected to both sides of the energy storage conversion seat 7. The energy storage buckles 8 are snap-fitted with the grooves 4. The energy storage buckles 8 are compressed by force to replace the spring to achieve energy storage and release, so as to reduce parts and development costs. A first static contact 11 and a second static contact 12 are snap-fitted inside the first outer shell 1. Two groups of moving contacts 9 are slidably connected in the middle of the energy storage conversion seat 7. A compression spring 10 is snap-fitted between the two groups of moving contacts 9. Both the first static contact 11 and the second static contact 12 are in contact and cooperation with the moving contacts 9.

[0027] When the moving contact 9 is not in contact with either the first static contact 11 or the second static contact 12, the transfer switch is in the double-open state; when the operating mechanism rotates counterclockwise by 45 degrees, the energy storage conversion seat 7 moves downward. The moving contact 9 located below first contacts the first static contact 11 and the second static contact 12, and then compresses the compression spring 10 to provide contact pressure. The switch is in the main closed state; when the operating mechanism rotates clockwise by 45 degrees, the energy storage conversion seat 7 moves upward. The moving contact 9 located above first contacts the first static contact 11 and the second static contact 12, and the switch is in the standby closed state.

[0028] The energy storage conversion base 7 is controlled to slide up and down through the operating mechanism. The groove 4 is in mutual fit with the energy storage buckle 8 of the energy storage conversion base 7. When the energy storage conversion base 7 moves up and down, the energy storage buckle 8 needs to be frictionally extruded with the groove 4, causing the energy storage buckle 8 to deform, changing from surface-to-surface friction to surface-to-line friction, improving the reliability of the up and down movement of the operating handle 3 for the moving contact 9. The integration of the energy storage and the moving mechanism replaces the spring, reduces the number of parts, facilitates installation, reduces the development cost, and lowers the assembly difficulty.

[0029] As Figure 4 and Figure 5 shown, four groups of the energy storage buckles 8 are provided, and the four groups of energy storage buckles 8 are symmetrically arranged. The four groups of energy storage buckles 8 are respectively in snap-fit with two groups of grooves 4.

[0030] There are at least 4 groups of energy storage buckles 8 on the energy storage conversion base 7 to ensure the consistent force during the up and down movement of the energy storage conversion base 7.

[0031] As Figure 2 shown, two groups of the first static contacts 11 and two groups of the second static contacts 12 are provided. The two groups of the first static contacts 11 are respectively located on both sides of the two groups of moving contacts 9, and the two groups of the second static contacts 12 are respectively located on both sides of the two groups of moving contacts 9. The first static contacts 11 and the second static contacts 12 are respectively located on both sides of the energy storage conversion base 7.

[0032] When the energy storage conversion base 7 moves up and down, the moving contact 9 will come into contact and cooperate with the first static contact 11 and the second static contact 12.

[0033] As Figures 2 - 3 shown, the operating mechanism includes a rotating seat 31. The rotating seat 31 is rotatably connected between the first housing 1 and the second housing 2. One side of the rotating seat 31 is fixedly connected with a handle 3, and the other side is fixedly connected with a driving seat 32. The shape of the driving seat 32 is set as an arc shape.

[0034] When the handle 3 is toggled, the rotating seat 31 is driven to rotate, and the driving seat 32 rotates along with it. The center of the driving seat 32 is different from the center of the rotating seat 31.

[0035] As Figures 2 - 3 shown, a sliding groove 5 is formed on the driving seat 32. The shape of the sliding groove 5 is set as an arc shape. A round shaft 6 is fixedly connected to the upper end of the energy storage conversion base 7, and the round shaft 6 is slidably connected to the sliding groove 5.

[0036] When the handle 3 drives the rotating seat 31 to rotate, the sliding groove 5 rotates along with it, and the height of the connection position between the sliding groove 5 and the round shaft 6 changes, thereby driving the energy storage conversion base 7 to move up and down.

[0037] As Figure 2 shown, an insulating partition 13 is fixedly connected inside the first housing 1, and the insulating partition 13 is located between the two groups of the first static contacts 11.

[0038] The insulating partition 13 prevents the two groups of static contacts from contacting and conducting electricity.

[0039] The working principle of the energy storage mechanism of an isolation type change-over switch provided by the present utility model is as follows:

[0040] The energy storage conversion seat 7 is controlled to slide up and down through the handle 3, the rotating seat 31 and the driving seat 32. The groove 4 is mutually attached to the energy storage buckle 8 of the energy storage conversion seat 7. When the energy storage conversion seat 7 moves up and down, the energy storage buckle 8 needs to be frictionally extruded with the groove 4, so that the energy storage buckle 8 deforms, changing from surface-to-surface friction to surface-to-line friction, improving the reliability of the up-and-down movement of the moving contact 9 by operating the handle 3. The integration of the energy storage and the movement mechanism replaces the spring, reduces the number of parts, facilitates installation, reduces the development cost, and reduces the assembly difficulty.

[0041] The above shows and describes the basic principle, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed.

Claims

1. Energy storage mechanism of an isolated transfer switch, comprising a first housing (1) and a second housing (2), characterized in that, The first housing (1) and the second housing (2) are snap-fitted and installed. An operating mechanism is rotatably connected between the first housing (1) and the second housing (2). Grooves (4) are formed on the inner walls of both the first housing (1) and the second housing (2), and the shape of the grooves (4) is set to be wavy. A energy storage conversion seat (7) is slidably connected between the first housing (1) and the second housing (2). The upper end of the energy storage conversion seat (7) is in driving cooperation with the operating mechanism. Energy storage buckles (8) are fixedly connected to both sides of the energy storage conversion seat (7), and the energy storage buckles (8) are in snap-fit with the grooves (4). A first static contact (11) and a second static contact (12) are snap-fitted inside the first housing (1). Two sets of moving contacts (9) are slidably connected to the middle of the energy storage conversion seat (7). A compression spring (10) is snap-fitted between the two sets of moving contacts (9). The first static contact (11) and the second static contact (12) are both in contact with the moving contacts (9).

2. The energy storage mechanism of an isolated transfer switch according to claim 1, characterized in that, There are four sets of the energy storage buckles (8), and the four sets of energy storage buckles (8) are symmetrically arranged. The four sets of energy storage buckles (8) are respectively in snap-fit with the two sets of grooves (4).

3. The energy storage mechanism of an isolated type transfer switch according to claim 2, characterized in that, There are two sets of both the first static contact (11) and the second static contact (12). The two sets of first static contacts (11) are respectively located on both sides of the two sets of moving contacts (9). The two sets of second static contacts (12) are respectively located on both sides of the two sets of moving contacts (9). The first static contact (11) and the second static contact (12) are respectively located on both sides of the energy storage conversion seat (7).

4. The energy storage mechanism of an isolated transfer switch according to claim 1, characterized in that The operating mechanism includes a rotating seat (31). The rotating seat (31) is rotatably connected between the first housing (1) and the second housing (2). A handle (3) is fixedly connected to one side of the rotating seat (31), and a driving seat (32) is fixedly connected to the other side. The shape of the driving seat (32) is set to be arc-shaped.

5. The energy storage mechanism of an isolation type transfer switch according to claim 4, characterized in that A sliding groove (5) is formed on the driving seat (32), and the shape of the sliding groove (5) is set to be arc-shaped. A round shaft (6) is fixedly connected to the upper end of the energy storage conversion seat (7), and the round shaft (6) is slidably connected to the sliding groove (5).

6. The energy storage mechanism of an isolated transfer switch according to claim 3, characterized in that, An insulating partition (13) is fixedly connected inside the first housing (1), and the insulating partition (13) is located between the two sets of first static contacts (11).

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