Rotary isolating switch and inverter

Abstract

The rotary isolating switch comprises at least two switch unit layers which are stacked in the first direction, each switch unit layer comprises a shell, a rotary disc and two static contacts, and the rotary disc and the two static contacts are arranged in the shell. The rotating disc is provided with a moving contact, the rotating disc is arranged in a rotating mode around a rotating axis, and the two static contacts are arranged on the two sides of the rotating disc respectively. The rotating disc rotates to realize the simultaneous contact and separation of the moving contact and the two static contacts; wherein the projections of the static contacts on the same side of the turntable in all the switch unit layers are consistent on a first imaginary plane, and the first imaginary plane is a plane perpendicular to the rotation axis; the static contact comprises a contact part and a wiring part, the contact part is used for being matched with the moving contact, and the wiring part is used for wiring; threading ports corresponding to the wiring parts are formed in the shell, and the threading ports corresponding to the static contacts with consistent projections on the first imaginary plane are sequentially arranged along a straight line; the wiring structure has the characteristic of convenience in wiring.

Description

Technical Field

[0001] The present application relates to the electrical field, and in particular to an inverter, and in particular to a rotary isolating switch in the inverter. Background Art

[0002] With the vigorous development of solar energy, inverters have also developed rapidly. As a switch in the inverter, the rotary isolating switch has gradually become a hot product.

[0003] The existing rotary isolating switch structure includes at least two switch unit layers, each of which contains a moving contact disc and two stationary contacts, and the moving contact disc has a moving contact. The moving contact disc rotates, so that the moving contact is connected to the two stationary contacts at the same time, thereby making the load circuit connected to the switch unit layer open; conversely, the moving contact disc rotates, so that the moving contact is separated from the two stationary contacts on the same layer, thereby disconnecting the load circuit connected to the switch unit layer. In the existing rotary isolating switch, the two stationary contacts on the same side of two adjacent switch unit layers are staggered, which is mainly designed to avoid short circuits between two adjacent switch unit layers as much as possible, such as the electric rotary switch disclosed in US9653232B2.

[0004] However, such a misplaced design also causes some inconvenience to users. For example, users need to frequently move the position of tools when wiring. Summary of the invention

[0005] In view of this, the purpose of the present application is to overcome the deficiencies in the prior art and to provide a rotary isolating switch and inverter with the characteristics of convenient wiring.

[0006] The present application provides: a rotary isolating switch, which includes at least two switch unit layers stacked along a first direction, each switch unit layer includes a shell, a turntable and two static contacts arranged in the shell; a moving contact is arranged on the turntable, and the turntable is rotatable around a rotation axis, and the two static contacts are arranged on both sides of the turntable; the turntable rotates to achieve the moving contact and separation with the two static contacts at the same time; wherein the static contacts on the same side of the turntable in all switch unit layers are consistent in projection on the first imaginary plane, and the first imaginary plane is a plane perpendicular to the rotation axis; the static contact includes a contact portion and a wiring portion, the contact portion is used to cooperate with the moving contact, and the wiring portion is used for wiring; a threading opening corresponding to the wiring portion is opened on the shell, and the threading openings corresponding to the static contacts with consistent projections on the first imaginary plane are arranged in sequence along a straight line.

[0007] Through this structural setting, since the projections of the static contacts on the same side of the turntable on the first imaginary plane are consistent, and the threading ports corresponding to the static contacts with consistent projections on the first imaginary plane are arranged in sequence along a straight line; this makes the wiring positions of each wiring part concentrated together, not staggered like the prior art. When the user inserts the external wire for wiring, it is not necessary to translate the wires of each layer a large distance before inserting them into the corresponding threading ports for wiring as in the prior art, which greatly improves the convenience of the user to access the wire. At the same time, the projections of the static contacts on the same side of the turntable on the first imaginary plane are consistent. Such a structure can make the shell and static contacts of the switch unit layer have the same structure, which can improve the assembly efficiency of employees (employees do not need to distinguish between odd and even layers, but only need to assemble the corresponding number of switch unit layers according to demand), and simplify the types of materials (each layer is the same, and the materials will be reduced by half), reducing the production cost of the enterprise.

[0008] In some embodiments of the present application, a first partition made of insulating material is further included. The first partition protrudes to the outside of the shell. The first partition separates two adjacent threading openings arranged along the same straight line. The first partition is directly formed on the shell or is detachably matched with the shell.

[0009] With this structure, the first spacer is used to separate the wire threading openings, thereby increasing the creepage distance between two adjacent wiring parts and avoiding short circuits.

[0010] In some embodiments of the present application, the first partition is an annular structure, and the first partition surrounds the threading port.

[0011] As a kind of first partition, the annular structure has a better isolation effect.

[0012] In some embodiments of the present application, the first partition includes a first partition plate, and the first partition plate is arranged perpendicular to the first direction.

[0013] As a type of first partition, the first partition plate has a simple structure and also has a certain isolation effect.

[0014] In some embodiments of the present application, the first partition includes a first partition and a second partition that are connected, the first partition is arranged perpendicular to the first direction, and the second partition is arranged parallel to the first direction, the threading opening includes an upper side wall, a lower side wall, a left side wall and a right side wall, the first partition is located next to the lower side wall, the second partition is located next to the left side wall, and the first partition and the second partition form a "T" shape or an "L" shape.

[0015] As a type of first partition, a "T"-shaped or "L"-shaped first partition has a relatively complex structure but has a better isolation effect.

[0016] In some embodiments of the present application, the first partition includes a first partition and a second partition that are connected, the first partition is arranged perpendicular to the first direction, and the second partition is arranged parallel to the first direction, the threading opening includes an upper side wall, a lower side wall, a left side wall and a right side wall, the first partition is located next to the lower side wall, the second partition is located next to the right side wall, and the first partition and the second partition form an "L" shape.

[0017] As a type of first partition, the "L"-shaped first partition has a relatively complex structure but has a better isolation effect.

[0018] In some embodiments of the present application, the first partition includes a first partition and a second partition that are connected, the first partition is arranged perpendicular to the first direction, the second partition is arranged parallel to the first direction, the wire threading opening includes an upper side wall, a lower side wall, a left side wall and a right side wall, the first partition is located next to the lower side wall, the second partition is located next to the left side wall of the wire threading opening of the adjacent switch unit layer, and the first partition and the second partition form a "T" shape or an "L" shape.

[0019] As a type of first partition, this "T"-shaped or "L"-shaped first partition extending into the adjacent layer shell has a relatively complex structure but has a good isolation effect.

[0020] In some embodiments of the present application, the first partition includes a first partition and a second partition that are connected, the first partition is arranged perpendicular to the first direction, the second partition is arranged parallel to the first direction, the wire threading opening includes an upper side wall, a lower side wall, a left side wall and a right side wall, the first partition is located next to the lower side wall, the second partition is located next to the right side wall of the wire threading opening of the adjacent switch unit layer, and the first partition and the second partition form an "L" shape.

[0021] As a type of first partition, this "L"-shaped first partition extending into the adjacent layer shell has a relatively complex structure but has a good isolation effect.

[0022] In some embodiments of the present application, the first partition includes a connected first partition and two second partitions, the first partition is arranged perpendicular to the first direction, the second partition is arranged parallel to the first direction, the wire threading opening includes an upper side wall, a lower side wall, a left side wall and a right side wall, the first partition is located next to the lower side wall, and the two second partitions are respectively located next to the left wall and the right wall of the wire threading opening of adjacent switch unit layers, and the first partition and the second partition form a "U" shape or an "F" shape.

[0023] As a type of first partition, this "U"-shaped or "F"-shaped first partition extending into the adjacent layer shell has a relatively complex structure but has a good isolation effect.

[0024] In some embodiments of the present application, the first partition includes a connected first partition and two second partitions, the first partition is arranged perpendicular to the first direction, and the second partition is arranged parallel to the first direction, the threading opening includes an upper side wall, a lower side wall, a left side wall and a right side wall, the first partition is located next to the lower side wall, and the two second partitions are respectively located next to the left wall and the right wall of the threading opening, and the first partition and the second partition form a "U" shape or an "F" shape.

[0025] As a type of first partition, this "U"-shaped or "F"-shaped first partition has a relatively complex structure but has a better isolation effect.

[0026] In some embodiments of the present application, the plane where the contact portion is located is perpendicular to the plane where the wiring portion is located.

[0027] This vertical setting will facilitate wiring.

[0028] In some embodiments of the present application, the contact portion is connected to the wiring portion via a connecting portion, the plane where the contact portion is located is perpendicular to the plane where the wiring portion is located, and the plane where the connecting portion is located is perpendicular to the plane where the wiring portion is located and the plane where the contact portion is located.

[0029] This vertical setting will facilitate wiring.

[0030] In some embodiments of the present application, a wiring port corresponding to the wiring part is further provided on the shell, and the wiring port is used for inserting a tool, and the wiring ports corresponding to the static contacts with consistent projections on the first imaginary plane are arranged in sequence along a straight line; the wiring port and the threading port are respectively located on two adjacent surfaces of the shell.

[0031] Arranging the wiring ports in a straight line will also make wiring more convenient.

[0032] In some embodiments of the present application, a wiring screw and a nut are also included. A first hole is opened on the wiring part, and the nut is located on the surface of the wiring part away from the wiring port. The wiring screw passes through the first hole and cooperates with the nut.

[0033] The nuts are used for matching, which makes wiring more convenient.

[0034] In some embodiments of the present application, a wiring screw is also included. A first hole is opened on the wiring part, and the first hole is a threaded hole. A pulling protrusion is provided on the surface of the wiring part away from the wiring port, and the pulling protrusion also has a first hole, and the wiring screw cooperates with the first hole.

[0035] By opening the first hole on the drawing protrusion, the length of the threaded hole can be increased, making the wiring more stable.

[0036] In some embodiments of the present application, two wiring ports of the same switch unit layer are located on the same side surface, adjacent two sides, or parallel two sides of the shell of the switch unit layer.

[0037] There are many ways to arrange the wiring ports, which can be on the same side, on two adjacent sides, or on two parallel sides. Regardless of the form, it is relatively convenient to process.

[0038] In some embodiments of the present application, the shells of two adjacent switch unit layers are fixed by ultrasonic welding.

[0039] Ultrasonic welding is used to ensure stable connection between shells.

[0040] In some embodiments of the present application, the shells of two adjacent switch unit layers are fixed with buckles.

[0041] It is fixed with buckles and has the characteristic of easy assembly.

[0042] In some embodiments of the present application, the housings of all switch unit layers are penetrated by bolts and then fastened by nuts.

[0043] The combination of bolts and nuts will make the entire shell connected very tightly and is also very convenient to assemble.

[0044] In some embodiments of the present application, two static contacts on the same layer are in a line-symmetric relationship or a center-symmetric relationship.

[0045] An inverter comprises a housing and the above-mentioned rotary isolating switch. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] 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 creative work.

[0047] Figure 1 A schematic diagram of the structure of an inverter according to an embodiment of the present application is shown;

[0048] Figure 2 A view showing a rotary isolating switch according to an embodiment of the present application is shown;

[0049] Figure 3 A projection diagram of a stationary contact in a rotary disconnector according to an embodiment of the present application is shown;

[0050] Figure 4A schematic diagram showing a switch unit layer in a rotary isolating switch according to an embodiment of the present application is shown;

[0051] Figure 5 A schematic diagram showing a stationary contact in a rotary isolating switch according to an embodiment of the present application is shown;

[0052] Figure 6 A schematic diagram showing a first implementation of a first spacer in a rotary disconnector according to an embodiment of the present application;

[0053] Figure 7 A schematic diagram showing a second implementation of the first spacer in the rotary disconnector according to an embodiment of the present application;

[0054] Figure 8 A schematic diagram showing a third implementation of the first spacer in the rotary disconnector according to the embodiment of the present application;

[0055] Fig. 9 A schematic diagram showing a fourth implementation of the first spacer in the rotary disconnector according to an embodiment of the present application;

[0056] Fig.10 A schematic diagram showing a fifth implementation of the first spacer in the rotary disconnector according to an embodiment of the present application;

[0057] Fig.11 A schematic diagram showing a sixth implementation of the first spacer in the rotary disconnector according to an embodiment of the present application;

[0058] Fig.12 A schematic diagram showing a seventh implementation of the first spacer in the rotary disconnector according to an embodiment of the present application;

[0059] Fig.13 A schematic diagram of an eighth implementation of the first partition in the rotary disconnect switch according to an embodiment of the present application is shown. DETAILED DESCRIPTION

[0060] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0061] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0062] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more poles of the feature. In the description of this application, "multi-pole" means two or more poles, unless otherwise clearly and specifically defined.

[0063] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "electrically connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed electrical connection, a detachable electrical connection, or an integrated one; it can be a mechanical electrical connection, or an electrical electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of the two-pole element or the interaction relationship between the two-pole elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0064] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature. Example

[0065] like Figure 1-13As shown, an inverter includes a housing 100 and a rotary isolating switch 200, wherein the rotary isolating switch 200 includes an operating unit layer 201 and a switch unit layer 202. The rotary isolating switch 200 is basically located inside the housing 100, and only the handle of the rotary isolating switch 200 is exposed outside the housing 100, so that the user can operate the handle outside the housing 100 to realize the connection and disconnection of the rotary isolating switch 200.

[0066] The rotary isolating switch 200 has an operating unit layer 201 and a switch unit layer 202 which are stacked. Specifically, taking this embodiment as an example, the number of switch unit layers 202 is three layers, which are stacked in sequence along a first direction, where the first direction is the height direction of the product, and the operating unit layer 201 is located above the topmost switch unit layer 202.

[0067] Here, each switch unit layer 202 includes a housing 2020, and two adjacent layers of housing 2020 are fastened together by snaps and ultrasonic welding to form a stable whole. Of course, in addition to the snaps and ultrasonic welding methods, snaps or ultrasonic welding alone can also be used, or even bolts can be passed through the housings 2020 of all switch unit layers 202 and then fixed with nuts.

[0068] Here, each switch unit layer 202 includes a rotating disk 2021 and two stationary contacts 2022. A moving contact 2023 is fixed above the rotating disk 2021, and the two stationary contacts 2022 are arranged on both sides of the rotating disk 2021. Since there is a linkage relationship between the rotating disks 2021 of each switch unit layer 202, and there is a transmission relationship between the rotating disk 2021 of the topmost switch unit layer 202 and the operating unit layer 201, the user can drive all the rotating disks 2021 to rotate when operating the unit layer 201. The rotation of the rotating disk 2021 can achieve simultaneous contact or separation between the moving contact 2023 and the two stationary contacts 2022 in the same switch unit layer 202, thereby realizing the connection and disconnection of this rotary disconnector 200.

[0069] Here, the projections S2 of the static contacts 2022 on the same side of the rotating disk 2021 in each switch unit layer 202 on the first imaginary plane S1 are consistent. In simple terms, if the two static contacts 2022 are located on the left and right sides of the rotating disk 2021, then the projections S2 of all the static contacts 2022 on the left side on the first imaginary plane S1 are consistent, and the projections S2 of all the static contacts 2022 on the right side on the first imaginary plane S1 are also consistent. The first imaginary plane S1 here is an imaginary plane, not a real plane. This plane is specifically a plane perpendicular to the rotation axis O of the rotating disk 2021.

[0070] Here, the structures of the two static contacts 2022 on the same layer may be completely the same or different.

[0071] Regardless of the form, the static contact 2022 includes a contact portion 2022a and a wiring portion 2022b. The wiring portion 2022b is used to connect to an external wire, and the contact portion 2022a is used to achieve contact and separation with the moving contact 2023.

[0072] The housing 2020 of the switch unit layer 202 is provided with a connection port 2020a and a threading port 2020b, and the connection portion 2022b is located near the connection port 2020a and the threading port 2020b. The threading port 2020b is used for inserting the wire, and the connection port 2020a is used for inserting a tool (such as a screwdriver) to tighten the screw, so that the wire and the connection portion 2022b form a stable connection. Here, the connection port 2020a and the threading port 2020b are distributed on two adjacent surfaces of the housing 2020 of the switch unit layer 202.

[0073] The threading openings 2020b corresponding to the static contacts 2022 that are consistent with the projection S2 are arranged in sequence along a straight line, and similarly, the corresponding wiring openings 2020a are also arranged in sequence along a straight line.

[0074] For the two wiring ports 2020a on the same layer, they can be located on the same side of the housing 2020, or on two parallel sides of the housing 2020, or on two parallel sides of the housing 2020. The specific arrangement is determined according to the specific shape of the static contact 2022. Figure 3 In the embodiment, since the two static contacts 2022 are in a centrally symmetrical relationship, they are located on two parallel sides of the housing 2020.

[0075] Here, the contact portion 2022a is connected to the wiring portion 2022b via the connecting portion 2020c, and the contact portion 2022a, the connecting portion 2020c and the wiring portion 2022b are arranged perpendicular to each other, that is, the plane where the contact portion 2022a is located is perpendicular to the plane where the wiring portion 2022b is located, and the plane where the connecting portion 2020c is located is perpendicular to the plane where the wiring portion 2022b is located, and the plane where the contact portion 2022a is located is also perpendicular to the plane where the wiring portion 2022b is located. Of course, in addition to this, the static contact 2022 may also only include the contact portion 2022a and the wiring portion 2022b, for example, the contact portion 2022a and the wiring portion 2022b form a torsion structure.

[0076] The connection part 2022b is fixed to the wire by a connection screw 2022d. Here, a first hole 2022b2 is provided on the connection part 2022b, and the first hole 2022b2 is a threaded hole. A pull-out protrusion 2022b1 is provided on the surface of the connection part 2022b away from the connection port 2020a. The pull-out protrusion 2022b1 also has a first hole 2022b2, and the connection screw 2022d cooperates with the first hole 2022b2. Of course, in addition to this, a nut solution can also be adopted, that is, a first hole 2022b2 is provided on the connection part 2022b, and the nut is located on the surface of the connection part 2022b away from the connection port 2020a, and the connection screw 2022d passes through the first hole 2022b2 and cooperates with the nut.

[0077] The two static contacts 2022 of the same switch unit layer 202 may have completely identical structures, or may have linearly symmetrical structures (i.e., mirror images), or may have completely different structures. Taking the case of completely identical structures as an example, the two static contacts 2022 are centrally symmetrical, that is, one of the static contacts 2022 is completely overlapped with the other static contact 2022 when rotated 180° about the center of the switch unit layer 202.

[0078] In order to increase the creepage distance between the wire threading openings 2020b arranged along the same straight line, a first partition is arranged between two adjacent wire threading openings 2020b, and the first partition protrudes to the outside of the shell 2020. The first partition here can be molded with the shell 2020 of the switch unit layer 202, and can also be fixed to the shell 2020 by plugging or snapping.

[0079] Several preferred implementations of the first partition integrally formed with the housing 2020 are exemplified below:

[0080] like Figure 6 As shown, the first partition here is an annular structure S100, and the annular structure S100 here surrounds the threading port 2020b. The annular structure S100 here is formed by two adjacent shells 2020.

[0081] like Figure 7 As shown, the first partition here is a first partition S101, which is arranged perpendicular to the first direction, and separates two adjacent threading openings 2020b. The first partition S101 here is formed on one of the housings 2020 of the adjacent switch unit layers 202. Of course, in addition to this, the first partition S101 can also be arranged on the housings 2020 of the two switch unit layers 202.

[0082] like Figure 8 As shown, the threading port 2020b includes an upper side wall 2020bs, a lower side wall 2020bx, a left side wall 2020bz and a right side wall 2020by. The first partition includes a first partition plate S101 and a second partition plate S102 connected to each other, the first partition plate S101 is arranged perpendicular to the first direction, and the second partition plate S102 is arranged parallel to the first direction. The first partition plate S101 is located next to the lower side wall 2020bx, and the second partition plate S102 is located next to the left side wall 2020bz, and the first partition plate S101 and the second partition plate S102 form a "T" shape. Of course, here, in addition to the "T" shape, an "L" shape can also be used.

[0083] like Fig. 9 As shown, the threading port 2020b includes an upper side wall 2020bs, a lower side wall 2020bx, a left side wall 2020bz and a right side wall 2020by. The first partition includes a first partition plate S101 and a second partition plate S102 connected to each other, the first partition plate S101 is arranged perpendicular to the first direction, the second partition plate S102 is arranged parallel to the first direction, the first partition plate S101 is located next to the lower side wall 2020bx, the second partition plate S102 is located next to the right side wall 2020by, and the first partition plate S101 and the second partition plate S102 form an "L" shape.

[0084] like Fig.10 As shown, the threading opening 2020b includes an upper side wall 2020bs, a lower side wall 2020bx, a left side wall 2020bz and a right side wall 2020by. The first partition includes a first partition plate S101 and a second partition plate S102 connected to each other, the first partition plate S101 is arranged perpendicular to the first direction, the second partition plate S102 is arranged parallel to the first direction, the first partition plate S101 is located next to the lower side wall 2020bx, and the second partition plate S102 is located next to the left side wall 2020bz of the threading opening 2020b of the adjacent switch unit layer 202, and the first partition plate S101 and the second partition plate S102 form a "T" shape. Of course, here, in addition to the "T" shape, an "L" shape can also be used.

[0085] like Fig.11As shown, the threading opening 2020b includes an upper side wall 2020bs, a lower side wall 2020bx, a left side wall 2020bz and a right side wall 2020by. The first partition includes a first partition plate S101 and a second partition plate S102 connected to each other, the first partition plate S101 is arranged perpendicular to the first direction, the second partition plate S102 is arranged parallel to the first direction, the first partition plate S101 is located next to the lower side wall 2020bx, and the second partition plate S102 is located next to the right side wall 2020by of the threading opening 2020b of the adjacent switch unit layer 202, and the first partition plate S101 and the second partition plate S102 form an "L" shape.

[0086] like Fig.12 As shown, the threading opening 2020b includes an upper side wall 2020bs, a lower side wall 2020bx, a left side wall 2020bz and a right side wall 2020by. The first partition includes a first partition plate S101 and two second partition plates S102 connected to each other. The first partition plate S101 is arranged perpendicular to the first direction, and the second partition plate S102 is arranged parallel to the first direction. The first partition plate S101 is located beside the lower side wall 2020bx, and the two second partition plates S102 are respectively located beside the left side wall 2020bz and the right side wall 2020by of the threading opening 2020b of the adjacent switch unit layer 202, and the first partition plate S101 and the second partition plate S102 form an "F" shape. Of course, here, in addition to the "F" shape, a "U" shape can also be used.

[0087] like Fig.13 As shown, the threading port 2020b includes an upper side wall 2020bs, a lower side wall 2020bx, a left side wall 2020bz and a right side wall 2020by. The first partition includes a first partition plate S101 and two second partition plates S102 connected to each other. The first partition plate S101 is arranged perpendicular to the first direction, and the second partition plates S102 are arranged parallel to the first direction. The first partition plate S101 is located beside the lower side wall 2020bx, and the two second partition plates S102 are respectively located beside the left side wall 2020bz and the right side wall 2020by of the threading port 2020b. The first partition plate S101 and the second partition plate S102 form an "F" shape. Of course, here, in addition to the "F" shape, a "U" shape can also be used.

[0088] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples and features of different embodiments or examples described in this specification without contradiction.

[0089] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A rotary isolating switch, comprising at least two switch unit layers stacked along a first direction, each switch unit layer comprising a housing, a rotating disk arranged in the housing, and two stationary contacts; a moving contact is arranged on the rotating disk, and the rotating disk is arranged to rotate around a rotating axis, and the two stationary contacts are arranged on both sides of the rotating disk; the rotating disk rotates to realize the moving contact and separation with the two stationary contacts at the same time; characterized in that: The projections of the static contacts on the same side of the turntable in all switch unit layers on the first imaginary plane are consistent, and the first imaginary plane is a plane perpendicular to the rotation axis; the static contact includes a contact portion and a wiring portion, the contact portion is used to cooperate with the moving contact, and the wiring portion is used for wiring; a threading opening corresponding to the wiring portion is opened on the shell, and the threading openings corresponding to the static contacts with consistent projections on the first imaginary plane are arranged in sequence along a straight line.

2. A rotary isolating switch according to claim 1, characterized in that: It also includes a first partition made of insulating material, which protrudes outward from the shell and separates two adjacent threading openings arranged along the same straight line. The first partition is directly formed on the shell or is detachably matched with the shell.

3. A rotary isolating switch according to claim 2, characterized in that: The first partition is an annular structure, and the first partition surrounds the threading port; Or, the first partition includes a first partition plate, and the first partition plate is arranged perpendicular to the first direction; Or, the first partition includes a first partition and a second partition connected to each other, the first partition is arranged perpendicular to the first direction, the second partition is arranged parallel to the first direction, the threading opening includes an upper side wall, a lower side wall, a left side wall and a right side wall, the first partition is located beside the lower side wall, the second partition is located beside the left side wall, and the first partition and the second partition form a "T" shape or an "L" shape; Or, the first partition includes a first partition and a second partition connected to each other, the first partition is arranged perpendicular to the first direction, the second partition is arranged parallel to the first direction, the threading opening includes an upper side wall, a lower side wall, a left side wall and a right side wall, the first partition is located beside the lower side wall, the second partition is located beside the right side wall, and the first partition and the second partition form an "L" shape; Or, the first partition includes a first partition and a second partition that are connected, the first partition is arranged perpendicular to the first direction, the second partition is arranged parallel to the first direction, the threading opening includes an upper side wall, a lower side wall, a left side wall and a right side wall, the first partition is located beside the lower side wall, the second partition is located beside the left side wall of the threading opening of the adjacent switch unit layer, and the first partition and the second partition form a "T" shape or an "L" shape; Or, the first partition includes a first partition and a second partition connected to each other, the first partition is arranged perpendicular to the first direction, the second partition is arranged parallel to the first direction, the threading opening includes an upper side wall, a lower side wall, a left side wall and a right side wall, the first partition is located beside the lower side wall, the second partition is located beside the right side wall of the threading opening of the adjacent switch unit layer, and the first partition and the second partition form an "L" shape; Or, the first partition includes a first partition plate and two second partition plates connected to each other, the first partition plate is arranged perpendicularly to the first direction, the second partition plate is arranged parallel to the first direction, the threading opening includes an upper side wall, a lower side wall, a left side wall and a right side wall, the first partition plate is located beside the lower side wall, the two second partition plates are respectively located beside the left side wall and the right side wall of the threading opening of the adjacent switch unit layer, and the first partition plate and the second partition plate form a "U" shape or an "F" shape; Or, the first partition includes a connected first partition and two second partitions, the first partition is arranged perpendicular to the first direction, the second partition is arranged parallel to the first direction, the threading opening includes an upper wall, a lower wall, a left wall and a right wall, the first partition is located next to the lower wall, the two second partitions are respectively located next to the left wall and the right wall of the threading opening, and the first partition and the second partition form a "U" shape or an "F" shape.

4. A rotary isolating switch according to claim 1, characterized in that: The plane where the contact portion is located is perpendicular to the plane where the wiring portion is located; Alternatively, the contact portion is connected to the wiring portion via a connecting portion, the plane where the contact portion is located is perpendicular to the plane where the wiring portion is located, and the plane where the connecting portion is located is perpendicular to the plane where the wiring portion is located and the plane where the contact portion is located.

5. A rotary isolating switch according to claim 1, characterized in that: The shell is also provided with a wiring port corresponding to the wiring part, the wiring port is used for inserting tools, and the wiring ports corresponding to the static contacts with consistent projections on the first imaginary plane are arranged in sequence along a straight line; the wiring port and the threading port are respectively located on two adjacent surfaces of the shell.

6. A rotary isolating switch according to claim 5, characterized in that: It also includes a wiring screw and a nut, wherein a first hole is provided on the wiring portion, the nut is located on a surface of the wiring portion away from the wiring port, and the wiring screw passes through the first hole and cooperates with the nut; Or, it also includes a wiring screw, a first hole is opened on the wiring part, the first hole is a threaded hole, a pulling protrusion is provided on the surface of the wiring part away from the wiring port, the pulling protrusion also has a first hole, and the wiring screw cooperates with the first hole.

7. A rotary isolating switch according to claim 5, characterized in that: The two connection ports of the same switch unit layer are located on the same side surface, adjacent two sides, or parallel two sides of the shell of the switch unit layer.

8. A rotary isolating switch according to claim 1, characterized in that: The shells of two adjacent switch unit layers are fixed by ultrasonic welding; Or, the housings of two adjacent switch unit layers are fixed with buckles; Alternatively, the housings of all switch unit layers are penetrated by bolts and then fastened by nuts.

9. A rotary isolating switch according to claim 1, characterized in that: The two static contacts on the same layer are in a line symmetric relationship or a center symmetric relationship.

10. An inverter, characterized in that: The invention comprises a housing and a rotary isolating switch as claimed in any one of claims 1 to 9.

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