Operating mechanism, rotary switch and power supply system

Abstract

The utility model provides an operating mechanism, a rotary switch and a power supply system, and relates to the technical field of low-voltage electrical appliances, the operating mechanism comprises a mechanism base and a rotating shaft arranged in the mechanism base, and the rotating shaft is used for being connected with a moving contact assembly to drive the moving contact assembly to rotate; and a limiting structure is arranged between the mechanism base and the rotating shaft, so that the rotating angle of the moving contact assembly is an obtuse angle. The rotation angle of the rotating shaft can be limited through the limiting structure, so that the rotation angle of the moving contact assembly is limited. The rotating angle of the moving contact assembly is limited in the obtuse angle range larger than 90 degrees through the limiting structure, compared with the prior art that a moving contact conducts opening and closing at the rotating angle of 90 degrees, the rotating angle is within the obtuse angle range, large-opening-angle opening and closing operation can be achieved, the product performance can be greatly improved, and the product quality is improved. And the volume of the product is not additionally increased.

Description

Technical Field

[0001] The present application relates to the technical field of low-voltage electrical appliances, and in particular to an operating mechanism, a rotary switch and a power supply system. Background Art

[0002] A general rotary switch is usually composed of several stacked switch units, each of which includes a unit housing, each of which is equipped with corresponding moving contact points and static contact points, and the external terminal of the static contact extends outside the unit housing. An axis core that drives the moving contacts to rotate synchronously is arranged between the unit housings, so that the moving contact and the static contact form a connection relationship of contact conduction and separation disconnection.

[0003] The moving contact of the current rotary switch generally rotates 90 degrees when closing or opening the switch, which can simplify the structure of the rotary switch and reduce the size of the rotary switch; but at the same time, the disadvantage is that the application of the rotary switch is limited to a certain range, which reduces the overall performance of the rotary switch. Utility Model Content

[0004] The purpose of the present application is to provide an operating mechanism, a rotary switch and a power supply system to address the deficiencies in the above-mentioned prior art, which can greatly improve the performance of the mechanism without increasing the size of the mechanism.

[0005] To achieve the above purpose, the technical solution adopted in the embodiment of the present application is as follows:

[0006] According to one aspect of an embodiment of the present application, an operating mechanism is provided, including a mechanism base and a rotating shaft arranged in the mechanism base, wherein the rotating shaft is used to connect to a moving contact assembly to drive the moving contact assembly to rotate; a limiting structure is arranged between the mechanism base and the rotating shaft so that the rotation angle of the moving contact assembly is an obtuse angle.

[0007] Another aspect of an embodiment of the present application provides a rotary switch, comprising a plurality of switch units stacked along a first direction and the above-mentioned operating mechanism, each switch unit comprising a shell, a moving contact assembly and a stationary contact assembly respectively arranged in the shell, a rotating shaft of the operating mechanism being transmission-connected to the moving contact assembly for driving the moving contact assembly to rotate so as to open or close the switch with the stationary contact assembly.

[0008] Another aspect of the embodiments of the present application provides a power supply system, including a control unit, a power supply, the above-mentioned rotary switch and a power conversion switch, the rotary switch is electrically connected between the power supply and the power conversion switch, and the control unit is used to send relevant signals of the power supply or the power conversion switch to the rotary switch.

[0009] The beneficial effects of this application include:

[0010] The present application provides an operating mechanism, a rotary switch and a power supply system. A limiting structure is provided between the mechanism base and the rotating shaft. The limiting structure can limit the rotation angle of the rotating shaft, thereby limiting the rotation angle of the moving contact assembly. The present application limits the rotation angle of the moving contact assembly to an obtuse angle range greater than 90 degrees through the limiting structure. Compared with the prior art in which the moving contact is opened and closed at a rotation angle of 90 degrees, the present application has a rotation angle within the obtuse angle range, which can realize the opening and closing operation of a large opening angle, can greatly improve the performance of the product, and does not increase the volume of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] 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.

[0012] Figure 1 A schematic diagram of the structure of a rotary switch provided in an embodiment of the present application;

[0013] Figure 2 One of the exploded structural schematic diagrams of a rotary switch provided in an embodiment of the present application;

[0014] Figure 3 A second exploded structural diagram of a rotary switch provided in an embodiment of the present application;

[0015] Figure 4 A schematic diagram of the structure of a mechanism base of an operating mechanism provided in an embodiment of the present application;

[0016] Figure 5a One of the schematic diagrams of the cooperation between the mechanism base and the rotating shaft of an operating mechanism provided in an embodiment of the present application;

[0017] Figure 5b A second schematic diagram of the coordination between a mechanism base and a rotating shaft of an operating mechanism provided in an embodiment of the present application;

[0018] Figure 6 One of the schematic diagrams of the rotating shaft structure of an operating mechanism provided in an embodiment of the present application;

[0019] Figure 7 A second schematic diagram of a rotating shaft structure of an operating mechanism provided in an embodiment of the present application;

[0020] Figure 8 A schematic diagram of the cooperation between a mechanism cover and a lever of an operating mechanism provided in an embodiment of the present application;

[0021] Fig. 9A schematic diagram of a lever structure of an operating mechanism provided in an embodiment of the present application;

[0022] Fig.10 One of the partial structural schematic diagrams of a rotary switch provided in an embodiment of the present application;

[0023] Fig.11 The second partial structural diagram of a rotary switch provided in an embodiment of the present application;

[0024] Fig.12a The third partial structural diagram of a rotary switch provided in an embodiment of the present application;

[0025] Figure 12b A fourth partial structural diagram of a rotary switch provided in an embodiment of the present application;

[0026] Fig.13 A fifth partial structural diagram of a rotary switch provided in an embodiment of the present application;

[0027] Fig.14 A schematic structural diagram of a moving contact assembly of an operating mechanism provided in an embodiment of the present application;

[0028] Fig.15 A connection diagram of a power supply system provided in an embodiment of the present application.

[0029] Icons: 100-rotary switch; 10-operating mechanism; 11-handle; 12-mechanism cover; 121-first limit platform; 122-second limit platform; 123-third limit platform; 123a-fifth side wall; 123b-sixth side wall; 13-lever; 131-bend; 132-first convex; 132a-side wall; 133-second convex; 133a-side wall; 14-rotating shaft; 140-central axis; 141-cantilever beam; 142-opening; 143- Connecting protrusion; 143a-second limiting protrusion; 143a1-third side wall; 143a2-second side wall; 144-bump; 15-mechanism base; 150-accommodating groove; 151-through hole; 152-first limiting protrusion; 152a-first side wall; 152b-second side wall; 16-elastic member; 20-switch unit; 20a-housing; 20b-first accommodating groove; 20aa-first side surface; 20ab-second side surface; 20ac-third side surface; 20ad-third side surface Four sides; 20a1-wiring port; 20a2-wiring channel; 20a3b-second receiving slot; 20a3c-support area; 20a6a-third baffle; 20a6b-fourth baffle; 20a6c-fifth baffle; 20a7a-hook; 20a7b-slot; 20a7c-welding rod; 20a8a-airway; 20a8b-blocking body; 201-second baffle; 21-moving contact assembly; 210-contact bracket; 211-moving contact; 212- Spring piece; 213-first baffle; 214-first rotating protrusion; 215-second rotating protrusion; 216-opening groove; 22-stationary contact assembly; 221-stationary contact; 2211-contact portion; 2212-wiring portion; 23-wiring terminal; 31-power supply; 32-power conversion switch; 33-control unit; S-intersection area; P-first projection; P0-second projection; F-preset direction; a-rotation angle; c-first direction; d-width; t-gap; k-rotation axis. DETAILED DESCRIPTION

[0030] 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.

[0031] 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. It should be noted that, in the absence of conflict, the various features in the embodiments of the present application can be combined with each other, and the combined embodiments are still within the scope of protection of the present application.

[0032] 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.

[0033] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the application is usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0034] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0035] 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 communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0036] In one aspect of the embodiment of the present application, referring to Figure 1 , Figure 2 , provides an operating mechanism 10, including a mechanism base 15 and a rotating shaft 14 arranged in the mechanism base 15, the rotating shaft 14 is used to connect with the moving contact assembly 21 to drive the moving contact assembly 21 to rotate; a limiting structure is arranged between the mechanism base 15 and the rotating shaft 14 so that the rotation angle a of the moving contact assembly 21 is an obtuse angle.

[0037] The mechanism base 15 cooperates with the rotating shaft 14, which is located inside the mechanism base 15 and connected to the moving contact assembly 21. The moving contact assembly 21 is driven by the rotating shaft 14 to rotate to contact or separate from the static contact assembly 22, thereby achieving closing or opening.

[0038] Among them, a limiting structure is provided between the mechanism base 15 and the rotating shaft 14, and the limiting structure can limit the rotation angle a of the rotating shaft 14, thereby limiting the rotation angle a of the moving contact assembly 21. The present application limits the rotation angle a of the moving contact assembly 21 to an obtuse angle range greater than 90 degrees through the limiting structure, for example, the rotation angle a can be 120 degrees. Compared with the prior art in which the moving contact is opened and closed at a rotation angle of 90 degrees, the present application has a rotation angle a within the obtuse angle range, which can realize the opening and closing operation of a large opening angle, can greatly improve the performance of the product, and does not increase the volume of the product.

[0039] In one embodiment, Figure 4 , Figure 5a , Figure 5b As shown, the limiting structure includes two first limiting protrusions 152 arranged on the mechanism base 15 and two second limiting protrusions 143a arranged on the rotating shaft 14, and the obtuse angle rotation range is achieved by abutting the corresponding first limiting protrusions 152 and second limiting protrusions 143a.

[0040] For example, the first limiting protrusion 152 has a first side wall 152a and a second side wall 152b, and the second limiting protrusion 143a has a third side wall 143a1 and a fourth side wall 143a2. When any second limiting protrusion 143a rotates from the position where the fourth side wall 143a2 abuts against the first side wall 152a of the corresponding first limiting protrusion 152 to the position where the third side wall 143a1 abuts against the second side wall 152b of another first limiting protrusion 152, the rotation angle a is an obtuse angle.

[0041] The fourth side wall 143a2 of the second limiting protrusion 143a abuts against the first side wall 152a of the corresponding first limiting protrusion 152. Figure 5a In the embodiment, the third side wall 143a1 is separated from the corresponding second side wall 152b; the third side wall 143a1 abuts against the second side wall 152b of another first limiting protrusion 152, that is, Figure 5b The fourth side wall 143a2 is separated from the corresponding first side wall 152a of the first limiting protrusion 152.

[0042] The second limiting protrusion 143a is Figure 5a Position rotated to Figure 5b position, the rotation angle a is an obtuse angle, thereby limiting the rotation angle a of the rotating shaft 14 to an obtuse angle range.

[0043] Reference Figure 5a It should be noted that, the smaller the width d between the third side wall 143a1 and the fourth side wall 143a2 of the second limiting protrusion 143a of the present application is, the larger the rotation range of the reserved rotation angle a is, that is, the larger the value of the rotation angle a is.

[0044] Furthermore, a receiving groove 150 is provided on the mechanism base 15, and the rotating shaft 14 is located in the receiving groove 150; a through hole 151 is provided in the receiving groove 150, and a first limiting protrusion 152 is formed on the hole wall of the through hole 151; a connecting protrusion 143 is provided on the rotating shaft 14, and the connecting protrusion 143 is passed through the through hole 151 to be connected with the moving contact assembly 21, and a second limiting protrusion 143a is formed on the connecting protrusion 143.

[0045] Reference Figure 3 The operating mechanism 10 also includes a handle 11, a mechanism cover 12, and a lever 13 which are arranged in sequence. One end of the lever 13 passes through the mechanism cover 12 and is connected to the handle 11. An elastic member 16 is sleeved on the rotating shaft 14. For example, the elastic member 16 can be a torsion spring sleeved on the central axis 140 of the rotating shaft 14. The other end of the lever 13 is linked with the rotating shaft 14 through the elastic member 16. The handle 11 drives the lever 13 to rotate. The rotation of the lever 13 drives the elastic member 16 to store energy to drive the rotating shaft 14 to rotate.

[0046] The lever 13 is provided with Fig. 9 The bent portion 131 is shown, and one end of the elastic member 16 is connected to the bent portion 131, and the other end is connected to the protrusion 144 of the rotating shaft 14. When the lever 13 rotates, the bent portion 131 drives the torsion spring to rotate and store energy.

[0047] A first limit platform 121 and a second limit platform 122 are provided on the mechanism upper cover 12. The first limit platform 121 and the second limit platform 122 are used to limit the rotating shaft 14 in the closing and opening positions respectively. An obtuse angle is provided between the first limit platform 121 and the second limit platform 122 to further limit the rotation angle a of the rotating shaft 14 within the obtuse angle range.

[0048] Specifically, Figure 6 , Figure 7 As shown, two cantilever beams 141 are formed on the rotating shaft 14, a gap t is formed between the cantilever beams 141 and the rotating shaft 14, and an opening 142 is formed between the two cantilever beams 141. When the opening 142 is respectively engaged with the first limiting platform 121 and the second limiting platform 122, the closing position and the opening position of the rotating shaft 14 are limited.

[0049] The principle of the operating mechanism 10 of the present application, taking the operating mechanism 10 from opening to closing as an example, the handle 11 is rotated from the opening position to the closing position, and the handle 11 drives the lever 13 to rotate. The lever 13 rotates to torsion spring to store energy. At this time, the rotating shaft 14 is in a locked state due to the engagement of the opening 142 with the second limit platform 122, and the torsion spring cannot drive the rotating shaft 14 to rotate. The handle 11 continues to drive the lever 13 to rotate, and the first locking protrusion 132 of the lever 13 rotates toward the opening 142, and presses down the cantilever beam 141, so that the opening 142 and the second limit platform 122 are disengaged, and the locking state is released. At this time, the torsion spring releases energy and drives the rotating shaft 14 to rotate. When the rotating shaft 14 rotates to the position where the opening 142 is engaged with the first limit platform 121, the rotating shaft 14 is locked, and the closing is completed. The process from closing to opening is the opposite, and will not be repeated.

[0050] The lever 13 is further provided with a first locking protrusion 132 and a second locking protrusion 133 , and the mechanism upper cover 12 is provided with a third limiting platform 123 , and the lever 13 is limited by the third limiting platform 123 abutting against the first locking protrusion 132 and the second locking protrusion 133 respectively.

[0051] Specifically, Figure 8 As shown, the third limiting platform is formed with a fifth side wall 123a and a sixth side wall 123b opposite to each other, so as to respectively abut against the side wall 132a of the first clamping protrusion 132 and the side wall 133a of the second clamping protrusion 133. When the side wall 132a of the first clamping protrusion 132 abuts against the fifth side wall 123a, the rotation range between the side wall 133a of the second clamping protrusion 133 and the sixth side wall 123b is an obtuse angle. When the side wall 133a of the second clamping protrusion 133 abuts against the sixth side wall 123b, the rotation range between the side wall 132a of the first clamping protrusion 132 and the fifth side wall 123a is an obtuse angle.

[0052] On this basis, please refer to Figure 1 The embodiment of the present application also provides a rotary switch 100, comprising a plurality of switch units 20 stacked along a first direction c and the above-mentioned operating mechanism 10, each of the switch units 20 comprising a housing 20a, a moving contact assembly 21 and a stationary contact assembly 22 respectively arranged in the housing 20a, and a rotating shaft 14 of the operating mechanism 10 is transmission-connected to the moving contact assembly 21, for driving the moving contact assembly 21 to rotate so as to open or close the switch with the stationary contact assembly 22.

[0053] For example, Fig.10 As shown, the moving contact assembly 21 is located at the center of the housing 20a, and there are two groups of static contact assemblies 22. The two groups of static contact assemblies 22 are respectively located at both ends of the moving contact assembly 21. When in the closed position, the moving contact assembly 21 and the two groups of static contact assemblies 22 form a straight line.

[0054] The moving contact assembly 21 includes a contact bracket 210 and a moving contact 211 disposed on the contact bracket 210 . Both ends of the contact bracket 210 form semi-enclosed opening grooves 142 , respectively. The end of the moving contact 211 that contacts the stationary contact assembly 22 is located in the opening groove 216 .

[0055] like Fig.14 As shown, the moving contact 211 has two pieces, the two moving contacts 211 are stacked, and the static contact of the static contact assembly 22 extends between the two moving contacts 211 to achieve contact; a spring 212 is also provided on the side of the two moving contacts 211 away from each other to squeeze the area between the two moving contacts 211, so that the static contact can be clamped to achieve reliable contact between the moving contact 211 and the static contact.

[0056] The arrangement of the two moving contacts 211 can increase the contact area with the stationary contact assembly 22 and can effectively dissipate heat.

[0057] Semi-enclosed opening grooves 216 are respectively formed at both ends of the contact bracket 210. By way of example, the opening groove 142 in the present application is a U-shaped groove, and the end of the moving contact 211 that contacts the static contact assembly 22 is located in the opening groove 216 to achieve a semi-wrapped setting for the moving contact 211, thereby playing an insulating role for the back area of ​​the opening groove 216.

[0058] In the present application, the openings 142 at both ends of the moving contact 211 are arranged opposite to each other, so that the opening slot 216 can isolate one end and the other end of the moving contact 211, preventing arc interference between the two ends of the moving contact 211 and the corresponding static contact assembly 22 when they are in contact or separated, thereby affecting the opening and closing performance.

[0059] In addition, first baffles 213 are formed on both sides of the contact bracket 210. When in the open position, the connecting line of any first baffle 213, the adjacent static contact assembly 22 and the end of the moving contact assembly 21 in contact with the static contact assembly 22 forms a triangle to increase the creepage distance.

[0060] like Fig.12a In an example shown, a line L1 is formed between the left static contact assembly 22 and the first baffle 213 at the bottom, a line L2 is formed between the first baffle 213 at the bottom and the lower end of the moving contact 211, and a line L3 is formed between the left static contact assembly 22 and the lower end of the moving contact 211; the above three lines form a triangle, and the sum of the two sides of the triangle is greater than the third side, that is, L1+L2>L3.

[0061] In this way, the setting of the first baffle 213 is equivalent to separating the lower ends of the left static contact assembly 22 and the moving contact 211, and the formed electrical gap L1+L2 is larger than the electrical gap L3 when the lower ends of the left static contact assembly 22 and the moving contact 211 are directly face to face when the first baffle 213 is not added. Therefore, the setting of the first baffle 213 is equivalent to increasing the electrical gap, increasing the arc movement length, thereby increasing the creepage distance, and the arc is easier to extinguish, which is beneficial to the stability and safety of the opening and closing of the moving and static contacts.

[0062] The upper ends of the left static contact assembly and the moving contact, and the two ends of the right static contact assembly and the moving contact are respectively formed into similar triangles to increase the creepage distance. For details, refer to Fig.12a The example is not repeated here.

[0063] Another way is, Fig.11 As shown, two second baffles 201 are disposed in the housing 20a, and the two second baffles 201 are respectively close to the two groups of stationary contact assemblies 22;

[0064] Any second baffle 201 is located in an intersection area S between the closing position and the opening position of the moving contact assembly 21 and the adjacent static contact assembly 22 to increase the creepage distance.

[0065] For example, a first receiving groove 20b is provided in the housing 20a, the moving contact assembly 21 is located in the first receiving groove, and two second baffles 201 extend from the groove wall of the first receiving groove 20b to be close to the stationary contact assemblies 22 on both sides respectively.

[0066] When the circuit is closed, the moving contact assembly 21 and the two groups of static contact assemblies 22 are in a straight line. When the circuit is opened, the moving contact assembly 21 rotates to the dotted line position, thus forming an intersection area S between the closing position and the opening position of the moving contact assembly 21 and the adjacent static contact assembly 22. Since the second baffle 201 needs to be close to the corresponding static contact assembly 22, the second baffle 201 is limited to form an area between the moving contact assembly 21 in the closing position, the opening position and the groove wall of the first accommodating groove 20b, which is within the intersection area S in the figure.

[0067] In this way, when the switch is in the open position, the static contact assembly 22 and one end of the corresponding moving contact 211 are blocked by the second baffle 201, forming the above-mentioned triangle principle, thereby achieving the effect of increasing the creepage distance.

[0068] For the multi-layer switch unit 20, refer to Fig.14A first rotating protrusion 214 and a second rotating protrusion 215 are respectively provided on both sides of the contact bracket 210. The first rotating protrusion 214 of the topmost switch unit 20 is connected to the connecting protrusion 143 of the rotating shaft 14. The switch units 20 of two adjacent layers are connected through their respective first rotating protrusions 214 and second rotating protrusions 215, thereby realizing the synchronous rotation of the multi-layer switch units 20.

[0069] The projections of the static contact assemblies 22 of the two adjacent layers of switch units 20 in the first direction c overlap or substantially overlap, so as to arrange the rotary switch 100 in a regular manner, which is conducive to flexibly increasing or decreasing the number of stacked switch units 20 to meet different scene requirements.

[0070] like Figure 12b As shown, when the projections of the static contact assemblies 22 of the switch units 20 of two adjacent layers in the first direction c completely overlap, a first projection P of a solid line is formed; when the projections of the static contact assemblies 22 of the switch units 20 of two adjacent layers in the first direction c have a slight deviation due to installation errors and the like and basically overlap, a second projection P0 in which the solid line and the dotted line overlap is formed.

[0071] The projections of the static contact assemblies 22 of the switch units 20 of each layer in the first direction c may have different deviations, and the installation deviations of the static contact assemblies 22 on the left and right sides of the switch units 20 of the same layer may also be different.

[0072] The two stationary contact assemblies 22 of the switch units 20 at the same layer are located at the center of the housing 20a, and the wires are output from the same side.

[0073] For example, two groups of static contact assemblies 22 are distributed on both sides of the shell 20a along the left-right direction and are centrally arranged. The two groups of static contact assemblies 22 can output wires from the same side. For example, both left and right static contact assemblies 22 can output wires from the left side or from the right side.

[0074] Reference Fig.11 The stationary contact 221 includes a contact portion 2211 and a wiring portion 2212, wherein the contact portions 2211 on the two stationary contacts 221 respectively cooperate with the two ends of the moving contact 211, and the wiring portion 2212 is used to electrically connect to an external conductor. The housing 20a is divided into a preset direction F, which is perpendicular to the rotation axis k of the moving contact assembly 21, and is preferably the length direction of the housing 20a. The contact portion 2211 extends in a straight line in the preset direction F, and the contact portions 2211 of the two stationary contacts 221 are arranged opposite to each other in the preset direction F, such as Fig.10 .

[0075] Reference Fig.13The housing 20a has a first side surface 20aa and a second side surface 20ab opposite to each other. The first side surface 20aa and the second side surface 20ab are respectively provided with a connection port 20a1, which is communicated with the interior of the housing 20a. The two connection ports 20a1 correspond to the connection portions 2212 of the two stationary contacts 221. The external conductor passes through the connection port 20a1 and extends into the interior of the housing 20a, and is electrically connected to the connection portion 2212 of the stationary contact 221. When at least two housings 20a are stacked, the connection ports 20a1 on the two adjacent layers of the housing 20a are arranged opposite to each other in the first direction c.

[0076] In the switch unit 20, the contact portions 2211 of the two static contacts 221 in the housing 20a extend along the preset direction F and are arranged opposite to each other in the preset direction F. After the housings 20a are stacked, the wiring ports 20a1 on the two adjacent layers of housings 20a are arranged opposite to each other in the first direction c. In this way, it is convenient for customers to locate and connect the wiring, and it is also possible to reduce production costs.

[0077] Optionally, two opposite wiring ports 20a1 on the same housing 20a are arranged opposite to each other along a preset direction F, so that the structure of the housing 20a is more symmetrical, further facilitating user positioning and wiring.

[0078] Optionally, the housing 20a has a third side surface 20ac located between the first side surface 20aa and the second side surface 20ab, and two wiring channels 20a2 are provided on the third side surface 20ac, and the wiring channels 20a2 are communicated with the interior of the housing 20a. The two wiring channels 20a2 correspond to the wiring portions 2212 of the two stationary contacts 221, respectively, and the wiring channels 20a2 are used for the wiring terminals 23 connected to the wiring portions 2212 to pass through.

[0079] During wiring, the external conductor extends from the wiring port 20a1 into the side of the wiring portion 2212 of the static contact 221 in the housing 20a, and the wiring terminal 23 extends from the wiring channel 20a2 into the housing 20a to fix the external conductor to the wiring portion 2212.

[0080] Optionally, the two wiring channels 20a2 are symmetrically distributed along the preset direction F. That is, the two wiring channels 20a2 on the same housing 20a are spaced apart along a straight line parallel to the preset direction F, and the distance between one wiring channel 20a2 and the first side surface 20aa is equal to the distance between the other wiring channel 20a2 and the second side surface 20ab.

[0081] When the moving contact 211 is in the closed position, the orthographic projection on the bottom of the first accommodating groove 20b and the edge of the bottom of the first accommodating groove 20b when the moving contact 211 is in the open position form two intersection areas S, and the angle b of the intersection area S is less than 90°. The two second baffles 201 are respectively located in the two intersection areas S.

[0082] When the opening and closing angle of the moving contact 211 is an obtuse angle, the above-mentioned intersection area S will be formed in the housing 20a. At this time, when the moving contact 211 moves to the opening position, the moving contact point at one end of the moving contact 211 gradually moves away from the contact portion 2211 of the matching static contact 221, but is too close to the contact portion 2211 of the other static contact 221. The second baffle 201 is arranged in the intersection area S to isolate the moving contact 211 and the static contact 221 when the moving contact 211 is in the opening position.

[0083] Preferably, the second baffle 201 is located at the edge side of the intersection area S close to the moving contact 211, so that the moving contact 211 can also be limited.

[0084] Optionally, please refer to Fig.11 A second accommodating groove 20a3b is provided in the shell 20a, and the static contact assembly 22 is located in the second accommodating groove 20a3b. A supporting area 20a3c is provided between the first accommodating groove 20b and the second accommodating groove 20a3b. The mating portion of the static contact 221 is arranged on the supporting area 20a3c and extends to the top of the first accommodating groove 20b to cooperate with the moving contact 211.

[0085] When the housings 20a are stacked, the wiring ports 20a1 on the two adjacent housings 20a are arranged opposite to each other, which results in a smaller creepage distance of the static contact 221. In order to increase the creepage distance of the static contact 221, optionally, please refer to Fig.13 The side of the connection port 20a1 is provided with a third baffle 20a6a and a fourth baffle 20a6b. When at least two shells 20a are stacked, the opening of the third baffle 20a6a on one shell 20a is blocked by the fourth baffle 20a6b on the other shell 20a to form an annular baffle surrounding the connection port 20a1.

[0086] For example, the third baffle 20a6a is U-shaped, the opening of the third baffle 20a6a faces upward and is located on the upper surface of the shell 20a, and the fourth baffle 20a6b is a flat plate, and the fourth baffle 20a6b is located below the third baffle 20a6a.

[0087] Optionally, two fifth baffles 20a6c are respectively provided on the first side 20aa and the second side 20ab of the shell 20a, and the two fifth baffles 20a6c are respectively located on the opposite sides of the third baffle 20a6a, and the fifth baffle 20a6c is spaced from the third baffle 20a6a, and an isolation space is also formed between the fifth baffle 20a6c and the third baffle 20a6a.

[0088] Preferably, the third baffle 20a6a, the fourth baffle 20a6b and the fifth baffle 20a6c have the same size in the preset direction F, so that the end surface of the shell 20a is flat.

[0089] Optionally, one of the upper surface and the lower surface of the shell 20a is provided with a hook 20a7a, and the other is provided with a slot 20a7b, and the hook 20a7a on one shell 20a is engaged with the slot 20a7b on the other shell 20a, thereby connecting two adjacent layers of shells 20a.

[0090] Furthermore, a plurality of welding rods 20a7c are provided on the side of the hook 20a7a, and the plurality of welding rods 20a7c are spaced apart along a preset direction F. After the two layers of the shell 20a are spliced, the welding rod 20a7c is located between the hook 20a7a and the slot 20a7b, and is used to weld the hook 20a7a and the slot 20a7b to improve the stability of the connection between the shells 20a.

[0091] Optionally, the housing 20a further has a fourth side surface 20ad, which is opposite to the third side surface 20ac. A plurality of air passages 20a8a are provided in the housing 20a, and the air passages 20a8a extend along the third side surface 20ac or the fourth side surface 20ad, and the head end of the air passage 20a8a is connected to the first receiving groove 20b, and the end end is located on the first side wall or the second side wall.

[0092] Furthermore, there are four air passages 20a8a, two of which extend along the third side 20ac, with their ends located at the first side 20aa and the second side 20ab, respectively, and the other two air passages 20a8a extend along the fourth side 20ad, with their ends located at the first side 20aa and the second side 20ab, respectively. Multiple blocking bodies 20a8b can be arranged in an interlaced manner in the air passage 20a8a along its extension direction, and the gas needs to bypass the multiple blocking bodies 20a8b in sequence when leaving the air passage. Under the premise that the length of the air passage 20a8a remains unchanged, the actual movement path of the gas in the air passage 20a8a can be effectively extended.

[0093] Please refer to Fig.15The embodiment of the present application also discloses a power supply system, including a control unit 33, a power supply 31, a power conversion switch 32 and the above-mentioned rotary switch 100, wherein the rotary switch 100 is electrically connected between the power supply 31 and the power conversion switch 32, and the control unit 33 is used to send relevant signals of the power supply 31 or the power conversion switch 32 to the rotary switch 100.

[0094] The rotary switch 100 has at least one layer of switch units 20 connected to the first loop, and other layers of switch units 20 connected to other loops other than the first loop.

[0095] The rotary switch 100 and the power supply system have the same structure and benefits as the operating mechanism 10 in the above embodiment. The structure and benefits of the operating mechanism 10 have been described in detail in the above embodiment and will not be repeated here.

[0096] The above are only preferred embodiments of the present application and are 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 operating mechanism, characterized in that: The invention comprises a mechanism base (15) and a rotating shaft (14) arranged in the mechanism base (15); the rotating shaft (14) is used to connect with a moving contact assembly (21) to drive the moving contact assembly (21) to rotate; a limiting structure is arranged between the mechanism base (15) and the rotating shaft (14) so ​​that the rotation angle (a) of the moving contact assembly (21) is an obtuse angle.

2. The operating mechanism according to claim 1, characterized in that: The limiting structure comprises two first limiting protrusions (152) arranged on the mechanism base (15), and two second limiting protrusions (143a) arranged on the rotating shaft (14), wherein the first limiting protrusion (152) has a first side wall (152a) and a second side wall (152b), and the second limiting protrusion (143a) has a third side wall (143a1) and a fourth side wall (143a2); When any of the second limiting protrusions (143a) rotates from the position where the fourth side wall (143a2) abuts against the first side wall (152a) of the corresponding first limiting protrusion (152) to the position where the third side wall (143a1) abuts against the second side wall (152b) of another first limiting protrusion (152), the rotation angle (a) is the obtuse angle.

3. The operating mechanism according to claim 1 or 2, characterized in that: The operating mechanism (10) further comprises a handle (11), a mechanism upper cover (12), and a lever (13) which are arranged in sequence; one end of the lever (13) passes through the mechanism upper cover (12) and is connected to the handle (11); the other end of the lever (13) is linked to the rotating shaft (14); A first limiting platform (121) and a second limiting platform (122) are provided on the mechanism upper cover (12); the first limiting platform (121) and the second limiting platform (122) are used to limit the rotating shaft (14) at the closing position and the opening position respectively; the obtuse angle is sandwiched between the first limiting platform (121) and the second limiting platform (122).

4. The operating mechanism according to claim 3, characterized in that: The lever (13) is also provided with a first locking protrusion (132) and a second locking protrusion (133); the mechanism upper cover (12) is provided with a third limiting platform (123); the third limiting platform (123) is formed with a fifth side wall (123a) and a sixth side wall (123b) opposite to each other, so as to respectively abut against the side wall (132a) of the first locking protrusion (132) and the side wall (133a) of the second locking protrusion (133); When the side wall (132a) of the first latching protrusion (132) abuts against the fifth side wall (123a), the rotation range between the side wall (133a) of the second latching protrusion (133) and the sixth side wall (123b) is the obtuse angle; when the side wall (133a) of the second latching protrusion (133) abuts against the sixth side wall (123b), the rotation range between the side wall (132a) of the first latching protrusion (132) and the fifth side wall (123a) is the obtuse angle.

5. A rotary switch, characterized in that: It comprises a plurality of switch units (20) stacked along a first direction (c) and an operating mechanism (10) according to any one of claims 1 to 4, each of the switch units (20) comprising a housing (20a), a moving contact assembly (21) and a stationary contact assembly (22) respectively arranged in the housing (20a), a rotating shaft (14) of the operating mechanism (10) being transmission-connected to the moving contact assembly (21) for driving the moving contact assembly (21) to rotate so as to open or close the switch with the stationary contact assembly (22); the stationary contact assembly (22) has two groups, which are respectively located on both sides of the moving contact assembly (21).

6. The rotary switch according to claim 5, characterized in that: The moving contact assembly (21) comprises a contact support (210) and a moving contact (211) arranged on the contact support (210); two ends of the contact support (210) respectively form a semi-enclosed open groove (216); the end of the moving contact (211) in contact with the stationary contact assembly (22) is located in the open groove (216).

7. The rotary switch according to claim 6, characterized in that: First baffles (213) are respectively formed on both sides of the contact support (210); when in the open position, a line connecting any of the first baffles (213), the adjacent static contact assembly (22), and the end of the moving contact assembly (21) in contact with the static contact assembly (22) forms a triangle to increase the creepage distance.

8. The rotary switch according to claim 5, characterized in that: Two second baffles (201) are arranged in the housing (20a), and the two second baffles (201) are respectively close to the two groups of static contact assemblies (22); any one of the second baffles (201) is located in the intersection area (S) of the closing position and the opening position of the moving contact assembly (21) and the adjacent static contact assembly (22) to increase the creepage distance.

9. The rotary switch according to any one of claims 5 to 8, characterized in that: The projections of the stationary contact assemblies (22) of the switch units (20) of two adjacent layers in the first direction (c) overlap to form a first projection (P) or substantially overlap to form a second projection (P0).

10. The rotary switch according to any one of claims 5 to 8, characterized in that: The two groups of stationary contact assemblies (22) of the switch units (20) on the same layer are located in the center of the housing (20a) and have wires exiting from the same side.

11. The rotary switch according to any one of claims 5 to 8, characterized in that: The stationary contact (221) comprises a contact portion (2211) and a wiring portion (2212); the two contact portions (2211) respectively cooperate with the moving contact (211); the contact portion (2211) extends in a straight line in a preset direction (F); the two contact portions (2211) are arranged opposite to each other in the preset direction (F); and the preset direction (F) is perpendicular to the rotation axis (k) of the moving contact assembly (21); The shell (20a) has a first side surface (20aa) and a second side surface (20ab) opposite to each other, and a wiring port (20a1) is respectively provided on the first side surface (20aa) and the second side surface (20ab), and the two wiring ports (20a1) respectively correspond to the two wiring portions (2212); when at least two shells (20a) are stacked, the wiring ports (20a1) on two adjacent layers of the shells (20a) are arranged opposite to each other in the first direction (c).

12. The rotary switch according to claim 11, characterized in that: The housing (20a) has a third side surface (20ac) located between the first side surface (20aa) and the second side surface (20ab), and two wiring channels (20a2) are provided on the third side surface (20ac), and the two wiring channels (20a2) respectively correspond to the wiring parts (2212) of the two static contacts (221), and the wiring channels (20a2) are used for allowing the wiring terminals (23) connected to the wiring parts (2212) to pass through.

13. The rotary switch according to claim 11, characterized in that: A third baffle (20a6a) and a fourth baffle (20a6b) are provided on the side of the wiring port (20a1); when at least two shells (20a) are stacked, the opening of the third baffle (20a6a) on one shell (20a) is blocked by the fourth baffle (20a6b) on the other shell (20a), so as to form an annular baffle surrounding the wiring port (20a1).

14. The rotary switch according to claim 13, characterized in that: Two fifth baffles (20a6c) are respectively provided on the first side surface (20aa) and the second side surface (20ab) of the shell (20a); the two fifth baffles (20a6c) are respectively located on two opposite sides of the third baffle (20a6a); and the fifth baffle (20a6c) is spaced apart from the third baffle (20a6a).

15. A power supply system, characterized in that: The invention comprises a control unit (33), a power supply (31), a rotary switch (100) as claimed in any one of claims 5 to 14, and a power conversion switch (32), wherein the rotary switch (100) is electrically connected between the power supply (31) and the power conversion switch (32), and the control unit (33) is used to send relevant signals of the power supply (31) or the power conversion switch (32) to the rotary switch (100).

16. The power supply system according to claim 15, characterized in that: The rotary switch (100) has at least one layer of switch units (20) connected to a first loop, and the switch units (20) in other layers are connected to other loops other than the first loop.

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