Rotary switch

Abstract

The utility model belongs to the technical field of low-voltage switches, and particularly relates to a rotary switch which comprises a knob and a switch body. The switch main body is internally provided with a plurality of unit spaces, each unit space is internally provided with a group of on-off structures, and each on-off structure comprises a moving contact assembly and two static contact parts matched with a moving contact; the plurality of unit spaces comprise a first unit space and a second unit space, and one static contact part located in the first unit space is conductively connected with one static contact part located in the second unit space, so that the on-off structure located in the first unit space and the on-off structure located in the second unit space form a series switch structure on the same circuit. According to the utility model, the two groups of on-off structures respectively positioned in the two unit spaces in the rotary switch form a series switch structure on the same circuit, that is, at least two groups of on-off switches are arranged on one switch circuit, so that higher rated working voltage of the low-voltage isolating switch can be met.

Description

Technical Field

[0001] The utility model belongs to the technical field of low-voltage switches, and in particular relates to a rotary switch. Background Art

[0002] The rotary switch includes a knob and a plurality of switch units stacked up and down. Each switch unit includes a set of on-off structures, specifically, a moving contact and two stationary contacts. The two stationary contacts extend out of the housing for wiring. The knob drives all the moving contacts to rotate to achieve synchronous opening and closing. Rotary switches are widely used in power systems, such as photovoltaics, wind power, etc. In a photovoltaic system, the smaller currents generated in each photovoltaic cell are combined in parallel to provide the required current or total power to the utilization system. At present, the rated operating voltage of low-voltage switches on the market has a trend of voltage upgrade, and the existing rotary switches cannot carry higher operating voltages. Utility Model Content

[0003] The purpose of the utility model is to provide a rotary switch in order to overcome the shortcomings and deficiencies of the prior art.

[0004] The technical solution adopted by the utility model is as follows: a rotary switch, comprising a knob and a switch body, wherein the knob has a first axis and can rotate around the first axis to output a rotary driving force;

[0005] The switch body is provided with a plurality of unit spaces, each of which is provided with a set of on-off structures, the on-off structures comprising a moving contact assembly and a first static contact portion matched with the moving contact;

[0006] The plurality of unit spaces include a first unit space and a second unit space,

[0007] The moving contact assembly located in the first unit space has a first rotation center axis arranged along a first direction X;

[0008] The moving contact assembly located in the second unit space has a second rotation center axis arranged along the first direction X;

[0009] The first rotation center axis and the second rotation center axis are arranged in parallel;

[0010] The first static contact located in the first unit space is conductively connected to the first static contact located in the second unit space, so that the on-off structure located in the first unit space and the on-off structure in the second unit space form a series switch structure on the same circuit.

[0011] The two groups of on-off structures constituting the series switch structure are located at the same height relative to the first direction X, or at different heights relative to the first direction X.

[0012] The switch body includes a plurality of unit housings stacked along a first direction X.

[0013] The unit shell includes two first side plates arranged in parallel and two second side plates arranged in parallel, an insulating partition is connected between the middle parts of the two first side plates, the two first side plates, the two second side plates and the insulating partition form two unit spaces located at the same height relative to the first direction X, and the two unit spaces respectively constitute the first unit space and the second unit space.

[0014] The two first static contact portions are located on the same side of the plane where the first rotation center axis and the second rotation center axis are located, or the two first static contact portions are located on both sides of the plane where the first rotation center axis and the second rotation center axis are located.

[0015] The two first static contact portions forming a conductive connection are connected via a conductive plate, and the two first static contact portions forming a conductive connection are integrally formed with the conductive plate.

[0016] The conductive plate is arranged perpendicular to the rotation plane of the moving contact assembly.

[0017] The switch body includes a plurality of unit shells, and the unit shells include two first side plates arranged in parallel and two second side plates arranged in parallel. The two first side plates and the two second side plates form an installation chamber, the moving contact assembly is arranged in the installation chamber, the conductive plate is located outside the installation chamber, and the first static contact portion passes through the first side plate and is connected to the conductive plate.

[0018] A static contact including a second static contact portion and a wiring portion is installed in each of the first unit space and the second unit space, the second static contact includes a second static contact portion and a wiring portion, and the first static contact portion and the second static contact portion are respectively located on both sides of the moving contact assembly to form a set of on-off structures;

[0019] The wiring part is located outside the unit housing and is used for connecting wires.

[0020] The first static contact portion is connected to a first spring sheet, and a clamping cavity for inserting the movable contact portion is formed between the first spring sheet and the first static contact portion;

[0021] An elastic member is also included. One end of the elastic member acts on the first spring leaf to form an elastic thrust toward the first static contact portion, and the other end of the elastic member is directly connected to the insulating member.

[0022] It also includes a power mechanism, which has a closing state, an opening state and a free tripping state;

[0023] The power mechanism has a rotation input part and a rotation output part;

[0024] The rotary input part cooperates with the knob, and the power mechanism can be switched between the closed state and the open state by turning the knob;

[0025] The power mechanism includes a release device for receiving a trip signal to switch the power mechanism from a closed state to a free tripping state;

[0026] The rotary output part cooperates with the moving contact assembly, and when the power mechanism is in the closed state, the on-off structure is in the engaged connected state, and when the power mechanism is in the open state or the free tripping state, the on-off structure is in the disconnected state. The beneficial effects of the utility model are as follows: the utility model enables two groups of on-off structures respectively located in two unit spaces in a rotary switch to form a series switch structure on the same circuit, that is, at least two groups of on-off switches are provided on a switch circuit, which can meet the higher rated working voltage of the low-voltage isolating switch. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, without paying creative labor, other drawings obtained based on these drawings still belong to the scope of the utility model.

[0028] Figure 1 This is a schematic diagram of the three-dimensional structure of Example 1, in which the bottom cover is hidden;

[0029] Figure 2 is a schematic structural diagram of a unit housing of Example 1;

[0030] Figure 3 is a schematic diagram of the internal structure of a unit housing in Example 1;

[0031] Figure 4 is a schematic structural diagram of a group of contact assemblies in Example 1;

[0032] Figure 5 This is a schematic structural diagram of the short-circuited series conductive body of Example 1;

[0033] Figure 6 Schematic diagram of the elastic action structure of the first static contact portion A in Example 1, (a) is a schematic diagram of a three-dimensional perspective, and (b) is a schematic diagram of a cross-section;

[0034] Figure 7 Schematic diagram of the structure of the static contact A in Example 1;

[0035] Figure 8 is a schematic diagram of the internal structure of a unit housing in Example 2;

[0036] Fig. 9 is a schematic structural diagram of a group of contact assemblies in Example 2;

[0037] Fig.10 This is a schematic structural diagram of the short-circuited series conductive body of Example 2;

[0038] Fig.11 is a schematic structural diagram of a unit housing of Example 2;

[0039] Fig.12 is a cross-sectional schematic diagram of Example 3;

[0040] Fig.13 This is a schematic structural diagram of the short-circuited series conductive body of Example 3.

[0041] In the figure,

[0042] Knob - 100;

[0043] Power mechanism - 200;

[0044] Unit housing 300, switch housing 310, first unit space 320, second unit space 330, first side plate 340, second side plate 350, insulating baffle 360, limiting convex column 370, conductive plate installation cavity 380, insulating partition 390;

[0045] Moving contact assembly A-410, moving contact assembly B-420;

[0046] Short-circuit the conductive body-500, the first static contact part A-510, the first static contact part B-520, the conductive plate-530, the first reed A-540, and the first reed B-550 in series;

[0047] Stationary contact A-610, second stationary contact portion A-611, wiring portion A-612, second spring leaf-613, wiring board-614, connection hole-6141, fastening bolt-615, fastening nut-616, stationary contact B-620, second stationary contact portion B-621, wiring portion B-622;

[0048] First transmission wheel-710, second transmission wheel-720;

[0049] First elastic member-810, insulating gasket-820. DETAILED DESCRIPTION

[0050] In order to make the purpose, technical solutions and advantages of the utility model clearer, the utility model will be further described in detail below with reference to the accompanying drawings.

[0051] It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are for distinguishing two non-identical entities with the same name or non-identical parameters. It can be seen that "first" and "second" are only for the convenience of expression and should not be understood as limitations on the embodiments of the present invention. The subsequent embodiments will not explain this one by one.

[0052] The directions and positions mentioned in the present invention, such as "upper", "lower", "front", "back", "left", "right", "inside", "outside", "top", "bottom", "side", etc., are only for reference to the directions or positions of the drawings. Therefore, the directions and positions used are used to explain and understand the present invention, but not to limit the scope of protection of the present invention.

[0053] Embodiment 1:

[0054] A rotary switch, such as Figure 1 As shown, the switch includes a knob 100 , a power mechanism 200 and a switch body stacked along a first direction X.

[0055] The knob 100 has a first axis extending along a first direction X, and the knob 100 can rotate around the first axis to output a rotational driving force.

[0056] The power mechanism 200 has a closing state, an opening state and a free tripping state. The power mechanism 200 has a rotation input part and a rotation output part. The rotation input part cooperates with the knob 100. The power mechanism 200 can be switched between the closing state and the opening state through the knob 100; the power mechanism 200 includes a release for receiving an opening signal to realize the switching of the power mechanism 200 from the closing state to the free tripping state. Specifically, the power mechanism 200 can be: a. A transmission mechanism with a connecting rod structure with an energy storage element and a jumper as the core, such as the structure disclosed in Chinese patent CN202111212394.3; b. A transmission mechanism with an operating mechanism commonly used in previous rotary switches and an energy storage mechanism as the core, such as the structure disclosed in the applicant's prior patent CN202310489972.0.

[0057] The switch body includes a plurality of unit housings 300 made of insulating material stacked along a first direction X. Figure 2As shown, specifically, the unit housing 300 includes two first side plates 340 arranged along the second direction Y and two second side plates 350 arranged along the third direction Z. An insulating partition 390 is connected between the middle parts of the two first side plates 340 and is arranged along the third direction Z. The two first side plates 340, the two second side plates 350 and the insulating partition 390 form a first unit space 320 and a second unit space 330 arranged in sequence along the second direction Y. The first direction X, the second direction Y, and the third direction Z are perpendicular to each other.

[0058] like Figure 3 As shown, a set of on-off structures are installed in the first unit space 320 and the second unit space 330 respectively, specifically:

[0059] A moving contact assembly A410 and a first static contact portion A510 and a second static contact portion A611 located on the periphery of the moving contact assembly A410 are installed in the first unit space 320. The moving contact assembly A410 is in transmission cooperation with the rotation output portion of the power mechanism 200. When the power mechanism 200 is in a closed state, two ends of the moving contact assembly A410 cooperate with the first static contact portion A510 and the second static contact portion A611 to make the first static contact portion A510 and the second static contact portion A611 energized. When the power mechanism 200 is in an open state or a free tripping state, two ends of the moving contact assembly A410 separate from the first static contact portion A510 and the second static contact portion A611 to make the first static contact portion A510 and the second static contact portion A611 de-energized.

[0060] A moving contact assembly B 420 and a first static contact portion B 520 and a second static contact portion B 621 located on the periphery of the moving contact assembly B 420 are installed in the second unit space 330. The moving contact assembly B 420 is in transmission cooperation with the rotating output portion of the power mechanism 200. When the power mechanism 200 is in a closed state, the two ends of the moving contact assembly B 420 cooperate with the first static contact portion B 520 and the second static contact portion B 621 to enable electricity to pass between the first static contact portion B 520 and the second static contact portion B 621. When the power mechanism 200 is in an open state or a free tripping state, the two ends of the moving contact assembly B 420 are separated from the first static contact portion B 520 and the second static contact portion B 621 to disconnect electricity between the first static contact portion B 520 and the second static contact portion B 621.

[0061] The moving contact assembly A 410 has a first rotation center axis arranged along the first direction X, and the moving contact assembly B 420 has a second rotation center axis arranged along the first direction X. A first transmission assembly is arranged between the moving contact assembly A 410 and the moving contact assembly B 420 so that the two can rotate synchronously, forming a double rotary switch structure.

[0062] Specifically, Figure 1 As shown, the first transmission assembly includes a first transmission wheel 710 which rotates synchronously with the moving contact assembly A 410 with the first rotation center axis as the axis, and a second transmission wheel 720 which rotates synchronously with the moving contact assembly B420 with the second rotation center axis as the axis. The first transmission wheel 710 and the second transmission wheel 720 are connected by common transmission structures such as gear transmission, chain sprocket transmission, gear rack transmission, and connecting rod transmission to form synchronous rotation. The first transmission wheel 710 and the second transmission wheel 720 shown in the figure are both gears, and the two are directly meshed to form synchronous rotation.

[0063] The first transmission assembly can be disposed at both ends and / or the middle of the switch housing 310. Specifically, it can be one of the following three methods or a combination of two or more thereof:

[0064] a. The first transmission assembly is arranged at one end of the switch body close to the power mechanism 200. Specifically, the switch housing includes a first transmission structure limiting housing located at one end of the switch body close to the power mechanism 200. The first transmission structure limiting housing is formed with a first transmission structure installation cavity on the outer end surface away from the unit housing member. The first transmission structure is installed in the first transmission structure installation cavity. The first transmission structure is limited between the first transmission structure limiting housing 350 and the power mechanism 200, or a cover body is configured to limit the first transmission structure between the first transmission structure limiting housing 350 and the cover body;

[0065] b. The first transmission assembly is arranged at one end of the switch housing 310 away from the power mechanism 200. Specifically, the switch housing includes a first transmission structure limiting housing 350 located at one end of the switch housing 310 away from the power mechanism 200. The outer end surface of the first transmission structure limiting housing away from the unit housing member is formed with a first transmission structure installation cavity, and a cover body is configured so that the first transmission structure is limited between the first transmission structure limiting housing 350 and the cover body;

[0066] c. The first transmission assembly is disposed in the middle of the switch housing 310. Specifically, a first transmission structure limiting housing 350 is stacked between at least one group of adjacent unit housing members located in the middle of the switch housing along the first direction. A first transmission structure installation cavity is formed in the first transmission structure limiting housing 350. The first transmission structure is limited between the first transmission structure limiting housing 350 and the unit housing members adjacent thereto.

[0067] More than two sets of first transmission components can be provided to improve the stability and reliability of the transmission.

[0068] Specifically, the structure of the contact assembly located in the same unit housing 300 is as follows: Figure 4As shown, it includes a stationary contact A 610 , a stationary contact B 620 , a short-circuited series conductive body 500 , a moving contact assembly A 410 , and a moving contact assembly B 420 .

[0069] like Figure 5 As shown, the short-circuited series conductive body 500 includes a first static contact portion A 510, a first static contact portion B 520, and a conductive plate 530 connected between the first static contact portion A 510 and the first static contact portion B 520. The first static contact portion A 510 and the first static contact portion B 520 are respectively arranged in the first unit space 320 and the second unit space 330. The conductive plate 530 enables the static contacts respectively located in the two spaces to form an electrical connection.

[0070] The static contact A 610 includes a second static contact portion A 611 and a wiring portion A 612, and the static contact B 620 includes a second static contact portion B 621 and a wiring portion B 622. The wiring portion A 612 and the wiring portion B 622 are both located outside the unit housing 300 for connecting wires, and the second static contact portion A 611 and the second static contact portion B 621 are respectively arranged in the first unit space 320 and the second unit space 330.

[0071] In this way, the two sets of on-off structures located in the same unit housing 300 form a series switch structure on the same circuit, that is, two sets of on-off switches are provided on one switch circuit, which can meet the higher rated working voltage of the low-voltage isolating switch, for example, breaking through to above 3000V.

[0072] Further, such as Figure 5 As shown, the first static contact portion A 510, the first static contact portion B 520 and the conductive plate 530 are integrally formed.

[0073] Further, such as Figure 3 As shown, the conductive plate 530 is located outside the first unit space 320 and the second unit space 330, the first static contact portion A 510 and the first static contact portion B 520 pass through the first side plate 340 of the unit housing 300 to connect with the conductive plate 530, and the conductive plate 530 is arranged perpendicular to the rotation plane of the moving contact assembly A 410, which can save space.

[0074] The first static contact portion A 510 and the first static contact portion B 520 are both arranged near the same first side plate 340 and are connected to the conductive plate 530 through the same first side plate 340 of the unit shell 300. Correspondingly, the second static contact portion A 611 and the second static contact portion B 621 are both arranged near another first side plate 340, and the wiring sides are uniformly set to the same side of the unit shell 300.

[0075] Furthermore, the conductive plate 530 is disposed along the second direction Y, which fully saves space.

[0076] Further, such as Figure 2 , Figure 3 As shown, the unit housing 300 includes an insulating baffle 360 ​​located outside the conductive plate 530 for protection.

[0077] Further, such as Figure 5 As shown, the first static contact part A 510 and the first static contact part B 520 are respectively connected with a first reed A 540 and a first reed B 550 having elasticity, and the dynamic contact part corresponding to the first static contact part A 510 and the first static contact part B 520 is a single-piece type, and a clamping cavity for inserting the dynamic contact part is formed between the first reed A 540 and the first static contact part A 510, and a clamping cavity for inserting the dynamic contact part is formed between the first reed B 550 and the first static contact part B 520.

[0078] Further, such as Figure 6 As shown, a first elastic member 810 is provided between the first reed A 540 and the unit housing 300. The first elastic member 810 forms an elastic thrust on the first reed A 540 in the direction of the first static contact portion, so that the first reed A 540 and the first static contact portion A 510 form a stable clamping effect. It is also possible not to provide an additional elastic member, and only the elastic force of the single reed is used to form the clamping force. However, when this structure is in contact with the moving contact portion and energized, the reed is not only affected by the heat radiation conduction between the moving and static contacts, but also generates heat itself, resulting in a high temperature. As an elastic member, the elasticity of the material is greatly affected by long-term exposure to high temperature, so the service life is not long, and the contact is unstable after a certain period of time. This structure is provided with another elastic member, one end of which supports the first reed A 540 and the other end abuts against the insulated unit housing 300. The elastic member does not act as a conductive member or conducts electricity in a small amount. It is mainly affected by heat radiation and has a lower temperature than the conductive member, which has a smaller impact on the elastic performance. It can maintain effective contact pressure for a long time, and will not cause abnormal heating due to reduced contact pressure, resulting in switch fire and other faults. A first elastic member 810 is also provided between the first reed B 550 and the unit housing 300.

[0079] The first elastic member 810 is specifically a compression spring as shown in the figure, and the unit housing 300 is provided with a limiting convex column 370, and the first elastic member 810 is sleeved outside the limiting convex column 370. The limiting convex column 370 can play an axial limiting role on the first elastic member 810 to prevent the first elastic member 810 from twisting. The first elastic member 810 can also be a spring-type elastic member or other common elastic structures.

[0080] Further, such as Figure 7As shown, the second static contact portion A 611 of the static contact A 610 is connected to a second elastic spring 613, and a clamping cavity for inserting the moving contact portion is formed between the second spring 613 and the second static contact portion A 611. A second elastic member is provided between the second spring 613 and the unit housing 300, and one end of the second elastic member supports the second spring 613, and the other end abuts against the insulating unit housing 300, which has the same effect as the first elastic member 810.

[0081] Furthermore, the wiring portion A612 of the static contact A610 includes a wiring board 614 connected to the second static contact portion A611, and at least two wiring structures are provided on the wiring board 614 to form a multi-position wiring terminal structure. In the prior art, the volume size of the switch is increasingly miniaturized. Under the same height size, only one wiring terminal can be connected due to size limitations. In this case, the temperature rise of the product is generally high, and the customer needs to parallel and converge the connected wires in advance, which is not conducive to the flexible and diversified operation of the customer's site. The multi-position wiring terminal structure of this embodiment can connect multiple terminals at the same time, and does not require parallel and convergence operations in advance, which is convenient for the flexibility of the installation site. When the wires are connected separately, the heat dissipation capacity of the wires is effectively increased. Compared with a single wire of the same cross-section, the temperature rise is lower, which is more conducive to the safety performance of the switch.

[0082] Specifically, in this embodiment, the wiring structure includes a connection hole 6141, a fastening bolt 615 and a fastening nut 616 arranged on the wiring board 614. The fastening nut 616 is fixed relative to the wiring board 614, and the fastening bolt 615 is threadedly connected to the fastening nut 616.

[0083] The terminal block 614 is disposed perpendicular to the rotation plane of the moving contact assembly A 410 and is disposed along the second direction Y, thereby fully saving space.

[0084] The structure of the stationary contact B 620 is completely the same as that of the stationary contact A 610 .

[0085] Embodiment 2:

[0086] The structure of this embodiment is substantially the same as that of the first embodiment, and the main differences are the structure of the unit housing 300 and the layout of the contact assembly.

[0087] like Figure 8 , Fig.11 As shown, two insulating partitions 390 are connected between the middle parts of the two first side plates 340 and are both arranged along the third direction Z, and a conductive plate installation cavity 380 is formed between the two insulating partitions 390 .

[0088] like Figure 8-10As shown, the conductive plate 530 of this embodiment is L-shaped, and the conductive plate 530 is arranged in the conductive plate installation cavity 380 and its two ends extend to the outside of the two first side plates 340 respectively. The first static contact part A 510 and the first static contact part B 520 are respectively arranged close to the two first side plates 340 of the unit shell 300 and respectively pass through the two first side plates 340 of the unit shell 300 to be connected with the conductive plate 530. Correspondingly, the second static contact part A 611 and the second static contact part B 621 are respectively arranged close to the two first side plates 340, and the wiring sides are respectively located on both sides of the unit shell 300. Under this structure, the creepage distance can be increased, and the two sides of the unit shell 300 can be uniformly connected to the neutral line and the phase line, thereby improving safety.

[0089] Embodiment 3:

[0090] The structure of this embodiment is substantially the same as that of the first embodiment, and the main differences are the structure of the unit housing 300 and the layout of the contact assembly.

[0091] Specifically, there is only one chamber in a unit housing 300 of the present embodiment, and the moving contact assembly of the present embodiment also has only one rotation center axis arranged along the first direction X. The first unit space 320 and the second unit space 330 of the present embodiment are chambers located in different layers of the unit housing 300 arranged along the first direction X.

[0092] like Fig.13 As shown, the conductive plate 530 of this embodiment is arranged along the first direction X, the conductive plate 530 is arranged in the conductive plate installation cavity 380 and the two ends extend to the outside of the two first side plates 340 respectively, the first static contact part A 510 and the first static contact part B 520 are respectively arranged close to the two first side plates 340 of the unit shell 300 and respectively pass through the two first side plates 340 of the unit shell 300 to be connected with the conductive plate 530.

[0093] The structure of this embodiment can also be applied to the double rotary switch structure in Embodiment 1.

[0094] Embodiment 4:

[0095] Embodiments 1-3 are all series switch structures formed between a first unit space and a second unit space. In this embodiment, a plurality of unit spaces are connected in sequence to form a series switch structure, and at least three groups of on-off structures are provided on the series switch structure. Two adjacent unit spaces constitute the first unit space and the second unit space respectively, and only the two static contacts of the first and last unit spaces serve as the second static contacts for the external circuit. Specifically, it can be one or more combinations of the short-circuited series conductive bodies 500 in Embodiments 1-3.

[0096] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope covered by the present invention.

Claims

1. A rotary switch, comprising a knob and a switch body, wherein the knob has a first axis and the knob can rotate around the first axis to output a rotary driving force; The switch body is provided with a plurality of unit spaces, each of which is provided with a set of on-off structures, the on-off structures comprising a moving contact assembly and a first static contact portion matched with the moving contact; The plurality of unit spaces include a first unit space and a second unit space, The moving contact assembly located in the first unit space has a first rotation center axis arranged along a first direction X; The moving contact assembly located in the second unit space has a second rotation center axis arranged along the first direction X; The first rotation center axis and the second rotation center axis are arranged in parallel; Features: in, The first static contact located in the first unit space is conductively connected to the first static contact located in the second unit space, so that the on-off structure located in the first unit space and the on-off structure in the second unit space form a series switch structure on the same circuit.

2. The rotary switch according to claim 1, characterized in that: The two groups of on-off structures constituting the series switch structure are located at the same height relative to the first direction X, or at different heights relative to the first direction X.

3. The rotary switch according to claim 2, characterized in that: The switch body includes a plurality of unit housings stacked along a first direction X. The unit shell includes two first side plates arranged in parallel and two second side plates arranged in parallel, an insulating partition is connected between the middle parts of the two first side plates, the two first side plates, the two second side plates and the insulating partition form two unit spaces located at the same height relative to the first direction X, and the two unit spaces respectively constitute the first unit space and the second unit space.

4. The rotary switch according to claim 1, characterized in that: The two first static contact portions are located on the same side of the plane where the first rotation center axis and the second rotation center axis are located, or the two first static contact portions are located on both sides of the plane where the first rotation center axis and the second rotation center axis are located.

5. The rotary switch according to any one of claims 1 to 4, characterized in that: The two first static contact portions forming a conductive connection are connected via a conductive plate, and the two first static contact portions forming a conductive connection are integrally formed with the conductive plate.

6. The rotary switch according to claim 5, characterized in that: The conductive plate is arranged perpendicular to the rotation plane of the moving contact assembly.

7. The rotary switch according to claim 5, characterized in that: The switch body includes a plurality of unit shells, and the unit shells include two first side plates arranged in parallel and two second side plates arranged in parallel. The two first side plates and the two second side plates form an installation chamber, the moving contact assembly is arranged in the installation chamber, the conductive plate is located outside the installation chamber, and the first static contact portion passes through the first side plate and is connected to the conductive plate.

8. The rotary switch according to any one of claims 1 to 4, characterized in that: A static contact including a second static contact portion and a wiring portion is installed in each of the first unit space and the second unit space, and the first static contact portion and the second static contact portion are respectively located on both sides of the moving contact assembly to form a set of on-off structures; The wiring part is located outside the unit housing and is used for connecting wires.

9. The rotary switch according to any one of claims 1 to 4, characterized in that: The first static contact portion is connected to a first spring sheet, and a clamping cavity for inserting the movable contact portion is formed between the first spring sheet and the first static contact portion; An elastic member is also included. One end of the elastic member acts on the first spring leaf to form an elastic thrust toward the first static contact portion, and the other end of the elastic member is directly connected to the insulating member.

10. The rotary switch according to any one of claims 1 to 4, characterized in that: It also includes a power mechanism, which has a closing state, an opening state and a free tripping state; The power mechanism has a rotation input part and a rotation output part; The rotary input part cooperates with the knob, and the power mechanism can be switched between the closed state and the open state by turning the knob; The power mechanism includes a release device for receiving a trip signal to switch the power mechanism from a closed state to a free tripping state; The rotary output part cooperates with the moving contact assembly. When the power mechanism is in a closed state, the on-off structure is in an engaged connected state. When the power mechanism is in an open state or a free tripping state, the on-off structure is in a disconnected state.

Images