Rotary isolating switch

Abstract

The invention discloses a rotary disconnecting switch which at least comprises a first switch unit and a second switch unit which are arranged in a stacked mode, the first switch unit is provided with a first contact module, and the second switch unit is provided with a second contact module. The first contact module comprises at least one loop switch, the second contact module comprises at least one loop switch, and one loop switch of the first contact module and one loop switch of the second contact module are connected in series on the first side of the rotary disconnecting switch. And after the two loop switches are connected in series, a wiring end and a wire inlet end are respectively positioned at the same end of the rotary isolating switch.

Description

Technical Field

[0001] The invention relates to the field of low-voltage electrical appliances, and in particular to a rotary isolating switch. Background Art

[0002] The rotary disconnector is usually composed of an operating mechanism unit and several stacked switch units. The switch unit includes a unit housing, each of which is equipped with a pair of stationary contact assemblies and a rotatable moving contact module. The moving contact module is fixed on the rotating shaft, and the operating mechanism unit can operate the rotating shaft to rotate, thereby closing or opening the moving and stationary contacts.

[0003] In the contact system of the existing switch unit, each switch unit controls a circuit loop independently, the incoming line side and the outgoing line side are relatively fixed, and the wiring is inflexible. When dealing with some complex circuit designs and uses, the rotary switch composed of multiple switch units is not competent, and the circuit design needs to be adjusted to meet the existing structure of the rotary isolating switch, which limits the circuit design. In addition, the operating parameters of each switch unit are fixed, and it is impossible to meet the breaking control of specific voltages and currents outside the fixed parameters. Summary of the invention

[0004] The purpose of the present invention is to overcome the defects of the prior art and provide a rotary isolating switch.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] A rotary isolating switch comprises at least two stacked first switch units and a second switch unit, wherein the first switch unit is provided with a first contact module, and the second switch unit is provided with a second contact module;

[0007] The first contact module includes at least one loop switch, and the second contact module includes at least one loop switch. One loop switch of the first contact module and one loop switch of the second contact module are connected in series on the first side of the rotary isolating switch. After the two loop switches are connected in series, the incoming line end and the outgoing line end are respectively located at the same end of the rotary isolating switch.

[0008] Preferably, the first contact module comprises: a first moving contact, a first stationary contact and a second stationary contact, the first stationary contact, the second stationary contact and the first moving contact form a loop switch, and the first moving contact is used to simultaneously contact or disengage with the first stationary contact and the second stationary contact to achieve conduction and disconnection of the first stationary contact and the second stationary contact;

[0009] The second contact module includes: a second moving contact, a third stationary contact, and a fourth stationary contact, the third stationary contact, the fourth stationary contact and the second moving contact form a loop switch, and the second moving contact is used to simultaneously contact or disengage with the third stationary contact and the fourth stationary contact to achieve the conduction and disconnection of the third stationary contact and the fourth stationary contact;

[0010] The first static contact, the second static contact, the third static contact, and the fourth static contact are all arranged on a first side of the rotary disconnector and are arranged near two ends of the side; the third static contact is arranged below the first static contact, and the fourth static contact is arranged below the second static contact;

[0011] The second static contact is electrically connected to the fourth static contact to realize the series connection of the first switch unit and the second switch unit. The incoming line end is arranged at one end of the first static contact, and the outgoing line end is arranged at one end of the third static contact.

[0012] Preferably, the first switch unit comprises a first housing, the first housing comprises a first side of the first housing, a second side of the first housing, a third side of the first housing and a fourth side of the first housing, the first side of the first housing and the second side of the first housing are two opposite sides, the third side of the first housing and the fourth side of the first housing are another two opposite sides, the first static contact and the second static contact are located on the first side of the first housing, and the third side of the first housing is close to the first static contact;

[0013] The second switch unit comprises a second housing, the second housing comprises a first side of the second housing, a second side of the second housing, a third side of the second housing and a fourth side of the second housing, the first side of the second housing and the second side of the second housing are two opposite sides, the third side of the second housing and the fourth side of the second housing are another two opposite sides, the third static contact and the fourth static contact are located on the first side of the second housing, and the third side of the first housing is close to the third static contact;

[0014] The first side of the first shell and the first side of the second shell are the same side. After the first switch unit and the second switch unit are connected in series, the incoming line end is arranged at the first static contact, and the outgoing line end is arranged at the third static contact.

[0015] Preferably, the inlet terminal is arranged on the first side of the first shell, and the outlet terminal is arranged on the first side of the second shell.

[0016] Preferably, the line inlet terminal is arranged on the third side of the first shell, and the line outlet terminal is arranged on the third side of the second shell.

[0017] Preferably, the line inlet is arranged on the first side of the first shell, and the line outlet is arranged on the third side of the second shell.

[0018] Preferably, the line inlet is arranged on the third side of the first shell, and the line outlet is arranged on the first side of the second shell.

[0019] Preferably, the first switch unit comprises two independent circuit switches, wherein a first static contact and a second static contact of one circuit switch are located on the first side of the first housing, and a first static contact and a second static contact of the other circuit switch are located on the second side of the first housing;

[0020] The second switch unit includes two independent circuit switches, wherein a third static contact and a fourth static contact of one circuit switch are located on the first side of the second housing, and a third static contact and a fourth static contact of the other circuit switch are located on the second side of the second housing.

[0021] A loop switch in the first switch unit and a loop switch in the second switch unit are connected in series at the first side of the first housing.

[0022] Preferably, the second static contact is electrically connected to the fourth static contact via an electrical connection structure, and the electrical connection structure is disposed in a first housing of the first switch unit and a second housing of the second switch unit.

[0023] Preferably, the first shell and / or the second shell is provided with a penetrating through hole, and the second static contact is connected to the fourth static contact via an electrical connection structure extending from the first shell to the second shell through the through hole.

[0024] Preferably, the second static contact is electrically connected to the fourth static contact via an electrical connection structure, and the electrical connection structure is disposed outside the first housing of the first switch unit and the second housing of the second switch unit.

[0025] Preferably, the second static contact is provided with a first external wiring portion passing through the first shell, and the fourth static contact is provided with a third external wiring portion passing through the second shell, and the first external wiring and the third external wiring are electrically connected outside the first shell and the second shell.

[0026] Preferably, the second stationary contact is electrically connected to the fourth stationary contact through an electrical connection structure, both ends of the electrical connection structure are respectively connected to opposite sides of the second stationary contact and the fourth stationary contact, and the electrical connection structure and the second stationary contact and the fourth stationary contact are an integrally formed structure.

[0027] Preferably, the first contact module comprises: a first moving contact, a first stationary contact and a second stationary contact, the first stationary contact, the second stationary contact and the first moving contact form a loop switch, the first moving contact is used to simultaneously contact or separate with the first stationary contact and the second stationary contact to realize the conduction and disconnection of the first stationary contact and the second stationary contact;

[0028] The first switch unit is also provided with a first slide rail for the first moving contact to slide. The first moving contact is driven by the contact driving mechanism of the first switch unit to slide along the first slide rail until it contacts or separates from the first stationary contact and the second stationary contact.

[0029] Preferably, the first moving contact is disposed on the first slide rail via a support member, and slides on the first slide rail via the support member.

[0030] Preferably, the second contact module comprises: a second moving contact, a third stationary contact, and a fourth stationary contact, the third stationary contact, the fourth stationary contact and the second moving contact form a loop switch, and the second moving contact is used to simultaneously contact or separate with the third stationary contact and the fourth stationary contact to realize the conduction and disconnection of the third stationary contact and the fourth stationary contact;

[0031] The second switch unit is also provided with a second slide rail for the second moving contact to slide. Driven by the contact driving mechanism of the second switch unit, the second moving contact slides along the second slide rail until it contacts or separates from the third and fourth stationary contacts.

[0032] Preferably, the rotary isolating switch comprises a plurality of switch units, and loop switches of at least three switch units are connected in series on the first side of the rotary isolating switch.

[0033] Preferably, the rotary isolating switch comprises a plurality of switch units, wherein loop switches having M switch units are connected in series on a first side of the rotary isolating switch, and loop switches having N switch units are connected in series on a second side of the rotary isolating switch, M=N or M≠N.

[0034] Preferably, the first switch unit and the second switch unit are two adjacent switch units or two switch units separated by at least one layer.

[0035] In the present invention, the switch units of the rotary isolating switch and the circuit switches between the contact modules of different units are connected in a cross-layer series connection manner, which can meet the needs of various working conditions. In a rotary isolating switch, if the working parameters of the switch units are different, a larger parameter range can be adjusted through cross-layer series connection; and after the two switch units are connected in series, the incoming line end and the outgoing line end are respectively located at the same end of the rotary isolating switch, which meets the wiring direction design of the rotary isolating switch and is convenient for some wiring needs.

[0036] Furthermore, for some usage scenarios, if a certain layer of switch units in the middle has been used, different switch units can be connected in series by skipping the layer, which can achieve better scalability.

[0037] Furthermore, based on further improvements of the embodiments of the present invention, when there are two independent loop switches on the same layer, the upper and lower layers can be connected in series on the same side to form a loop, while the other side can be not connected in series, so as to realize a switch unit with multiple operating control modes.

[0038] In addition, the contact driving mechanism of the switch unit drives the moving contact to slide to achieve contact or separation with the corresponding two stationary contacts. Especially when the switch unit has two independent circuit switches, the space occupied by the sliding of the moving contact is smaller than the space occupied by the traditional rotation. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 is a schematic diagram of the series connection structure between the switch units of the present invention;

[0040] Figure 2 It is a circuit diagram of a rotary isolating switch connected in series with a switch unit of the present invention;

[0041] Figure 3 It is a schematic diagram of the through hole arrangement of the rotary isolating switch of the present invention;

[0042] Figure 4 It is a schematic diagram of a rotary isolating switch of the present invention having a plurality of switch units;

[0043] Figure 5 It is a schematic diagram of external wiring of the rotary isolating switch of the present invention;

[0044] Figure 6 It is a schematic diagram of the driving mechanism of the rotary isolating switch of the present invention;

[0045] Figure 7 It is a schematic diagram of the supporting structure of the rotary isolating switch of the present invention;

[0046] Figure 8 It is a schematic diagram of the structure of the moving contact of the rotary isolating switch of the present invention.

[0047] L1 The first switch unit L2 The second switch unit L3 The third switch unit 10 case 1a First shell 1b Second shell 31a First stationary contact 32a Second static contact 31b The third static contact 32b Fourth static contact 3111 First external connection 3113 Third external connection 40b Second moving contact 5a First connecting rod 5b Second connecting rod 41 First moving contact 42 Second moving contact 401 Support connection part 4011 Connection hole 411 First support surface 4012 keyway 60 Rotating frame 70 transmission shaft 103a Slide rails 123 Through Hole 1030 Retaining Wall 80 Support 801 Transmission connection 802 slider 803 Contact connection 804 Upper limit plane 40a First moving contact DETAILED DESCRIPTION

[0048] The following is a further description of the specific implementation of the rotary isolating switch of the present invention in conjunction with the embodiments given in the accompanying drawings. The rotary isolating switch of the present invention is not limited to the description of the following embodiments.

[0049] A rotary isolating switch usually includes an operating unit and at least one switch unit, which are stacked. Each switch unit includes a contact module, which includes a moving contact, two static contacts cooperating with the corresponding moving contact, and a contact driving mechanism. The moving contact and the two static contacts constitute a loop switch. The operating unit is provided with an output shaft, which is connected to the contact driving mechanism of the switch unit and the contact driving mechanisms of adjacent switch units. The rotation of the output shaft drives the contact driving mechanism to move, and the contact driving mechanism drives the moving contact to contact or disengage with the two static contacts at the same time, thereby realizing the closing and opening of the switch unit.

[0050] refer to Figure 1-4 As shown, the rotary isolating switch of this embodiment includes an operating unit (not shown in the figure) and at least two switch units, and the operating unit and the at least two switch units are stacked. Figure 1 The internal structure of two switch units is shown, and the two switch units are respectively a first switch unit L1 and a second switch unit L2. Figure 2 The direction of the loop current (I1 direction) of the rotary disconnector is shown. The current passes through the first stationary contact 31a, the second stationary contact 32a, the fourth stationary contact 32b and the third stationary contact 31b, and the overall direction is U-shaped. Figure 3 The structure of two switch units with a housing is shown, the two switch units are stacked, and the upper cover of the first housing 1a of the upper first switch unit L1 is removed. Figure 4 An example with three switch units is shown, namely, a first switch unit L1, a second switch unit L2 and a third switch unit L3. Each switch unit is stacked and linked to form a complete rotary isolating switch. In this embodiment, the structure of each switch unit can be the same or different. Usually, the structures of the switch units of the same rotary isolating switch are the same.

[0051] like Figure 1 As shown, a rotary isolating switch provided in this embodiment includes at least two stacked first switch units L1 and second switch units L2. The first switch unit L1 is provided with a first contact module, and the second switch unit L2 is provided with a second contact module.

[0052] In this embodiment, the first contact module includes at least one loop switch, and the second contact module includes at least one loop switch. One loop switch of the first contact module and one loop switch of the second contact module are connected in series on the first side of the rotary isolating switch. After the two loop switches are connected in series, the connection terminal and the incoming line terminal are respectively located at the same end of the rotary isolating switch.

[0053] As a specific embodiment, the first contact module includes: a first moving contact 40a, a first stationary contact 31a and a second stationary contact 32a, and the first moving contact 40a is used to simultaneously contact or disengage with the first stationary contact 31a and the second stationary contact 32a to achieve conduction and disconnection of the first stationary contact 31a and the second stationary contact 32a.

[0054] Furthermore, the second contact module includes: a second moving contact 40b, a third stationary contact 31b, and a fourth stationary contact 32b, and the second moving contact 40b is used to simultaneously contact or disengage with the third stationary contact 31b and the fourth stationary contact 32b to achieve conduction and disconnection of the third stationary contact 31b and the fourth stationary contact 32b.

[0055] Among them, combined Figure 1-4 As shown, the first static contact 31a, the second static contact 32a, the third static contact 31b, and the fourth static contact 32b are all arranged on the first side of the rotary isolating switch and are arranged near the two ends of the side; the third static contact 31b is arranged below the first static contact 31a, and the fourth static contact 32b is arranged below the second static contact 32a; the second static contact 32a is electrically connected to the fourth static contact 32b to realize the series connection of the first switch unit L1 and the second switch unit L2, the incoming line terminal is arranged at one end of the first static contact 31a, and the outgoing line terminal is arranged at one end of the second static contact 31b, that is, the incoming line terminal and the wiring terminal are at the same end of the rotary isolating switch (see Figure 4 ).

[0056] Thus, the first moving contact 40a, the first stationary contact 31a, the second stationary contact 32a, the second moving contact 40b, the third stationary contact 31b, and the fourth stationary contact 32b of the present embodiment form a double-breakpoint circuit switch. The connection terminal of the external circuit is arranged on the first stationary contact 31a and the third stationary contact 31b, at the same end position on the same side, which can be applicable to the circuit connection requirements of some specific parameters and connection directions.

[0057] In this embodiment, the structure and layout of the first switch unit L1 and the second switch unit L2 are the same, that is, the structure of the first contact module and the second contact module are the same. Figure 1-4As shown, taking the first switch unit L1 as an example, the first static contact 31a and the second static contact 32a are arranged in the first housing 1a of the first switch unit L1, and the first static contact 31a and the second static contact 32a are connected by contacting with the first moving contact 40a, or the first static contact 31a and the second static contact 32a are disconnected by being separated from the first moving contact 40a, and the first static contact 31a, the second static contact 32a and the first moving contact 40a form a circuit switch, and the first static contact 31a and the second static contact 32a are respectively used to connect the power supply and the load, and can work independently. The structure of the second switch unit L2 is similar, and the third static contact 31b, the fourth static contact 32b and the second moving contact 40b form a circuit switch, and the third static contact 31b and the fourth static contact 32b are respectively used to connect the power supply and the load, and can work independently.

[0058] In some specific applications, the circuit switches of M switch units may be connected in series on the first side of the rotary isolating switch, and the circuit switches of N switch units may be connected in series on the second side of the rotary isolating switch, wherein M=N or M≠N. For example, the first contact module of the first switch unit L1 has two circuit switches, and the second contact module of the second switch unit L2 also has two circuit switches, and both are distributed on two opposite sides (i.e., the first side and the second side). At this time, the circuit switches of the first switch unit L1 and the second switch unit L2 on the first side may be connected in series; and the second switch unit L2 on the second side may be connected in series with the third switch unit, and also connected in series with the fourth switch unit, which is equivalent to M=2, N=3.

[0059] The present application electrically connects the second static contact 32a with the fourth static contact 32b to realize the series connection of the first switch unit L1 and the second switch unit L2, and the first moving contact 40a, the first static contact 31a, the second static contact 32a, the second moving contact 40b, the third static contact 31b, and the fourth static contact 32b form a new double-break circuit switch for synchronous closing and opening. It should be noted that, further, the static contact in the third switch unit L3 can also be electrically connected to the static contact of the second switch unit L2, that is, the static contacts of the first switch unit L1, the second switch unit L2 and the third switch unit L3 are connected in series in sequence, which also belongs to the protection scope of the present application, and has the structural feature that the static contacts of the two switch units are electrically connected.

[0060] Please refer to Figure 1-4As shown, in this embodiment, the contact module of each switch unit includes two moving contacts and four stationary contacts. One moving contact and two stationary contacts cooperate to form a switch circuit, and two switch circuits are formed in each switch unit. The driving mechanism of the contact module drives the two moving contacts to move at the same time, so that each moving contact cooperates with the corresponding two stationary contacts to turn on and off the corresponding switch circuit. Preferably, in this embodiment, the driving mechanism can simultaneously drive the two moving contacts to slide linearly, so that each moving contact cooperates with the corresponding two stationary contacts.

[0061] In this embodiment, under certain current and voltage conditions, if two layers of switch units cannot meet the breaking requirements, a third switch unit or a fourth switch unit or even more layers can be connected in series.

[0062] Under some application conditions, the operating parameters of the various switch units of the rotary disconnector can be the same or different. Through multi-layer series connection, a wider range of parameter operation can be achieved.

[0063] To achieve specific wiring position requirements or specific operating parameters, the first switch unit L1 and the second switch unit L2 may be two adjacent switch units, or two switch units separated by at least one layer.

[0064] In this embodiment, the first contact module in the first housing 1a of the first switch unit L1 includes two first moving contacts 40a, two first static contacts 31a and two second static contacts 32a, forming two independent circuit switches in the first housing 1a of the first switch unit L1, one circuit switch is arranged on the first side of the first housing 1a, and the other circuit switch is arranged on the second side of the first housing 1a, and the two circuit switches in the first housing 1a are symmetrically arranged. Similarly, the second contact module in the second housing 1b of the second switch unit L2 includes two second moving contacts 40b, two third static contacts 31b, and two fourth static contacts 32b, forming two independent circuit switches in the second housing 1b of the second switch unit L2, one circuit switch is arranged on the first side of the second housing 1b, and the other circuit switch is arranged on the second side of the second housing 1b, and the two circuit switches in the second housing 1b are symmetrically arranged. Of course, as other embodiments, only one first moving contact 40a, one first static contact 31a and one second static contact 32a can be arranged in the first switch unit L1.

[0065] Furthermore, the first side and the second side of the first shell 1a are opposite sides, and the first side and the second side of the second shell 1b are also opposite sides. In this embodiment, the first side of the first shell 1a and the first side of the second shell 1b are collectively referred to as the first side, and the second side of the first shell 1a and the second side of the second shell 1b are collectively referred to as the second side.

[0066] In this embodiment, at least one circuit switch in the first switch unit L1 is connected in series with the circuit switch in the second switch unit L2 to form a double-break circuit switch. For example, when two first moving contacts 40a, two first static contacts 31a, two second static contacts 32a, two second moving contacts 40b, two third static contacts 31b, and two fourth static contacts 32b are arranged in groups on opposite sides, the static contacts on both sides are connected in series, that is, the two circuit switches in the first switch unit L1 are connected in series with the two circuit switches in the second switch unit L2 to form two double-break circuit switches. In this way, the first switch unit L1 after the series connection is combined with the second switch unit L2 to achieve control of at least two circuits. The static contacts on one side may be connected in series, while those on the other side may not be connected in series, that is, only one of the two circuit switches in the first switch unit L1 is connected in series with one of the two circuit switches in the second switch unit L2. At this time, the first switch unit L1 combined with the second switch unit L2 can achieve control of three circuits.

[0067] In this embodiment, please combine Figure 1-3 ,and Figure 6 As shown, a first static contact 31a and a second static contact 32a of one of the circuit switches formed in the first switch unit L1 are located on the first side of the first shell 1a, and a first static contact 31a and a second static contact 32a of the other circuit switch are located on the second side of the first shell 1a; a third static contact 31b and a fourth static contact 32b of one of the circuit switches formed in the second switch unit L2 are located on the first side of the second shell 1b, and a third static contact 31b and a fourth static contact 32b of the other circuit switch are located on the second side of the second shell 1b, and the second shell 1b is arranged below the first shell 1a, the first side of the first shell 1a and the first side of the second shell 1b belong to the same side, and the second side of the first shell 1a and the second side of the second shell 1b belong to the same side.

[0068] Preferably, the second static contact 32a located on the first side in the first shell 1a is electrically connected to the fourth static contact 32b located on the first side in the second shell 1b; and / or, the second static contact 32a located on the second side in the first shell 1a is electrically connected to the fourth static contact 32b located on the second side in the second shell 1b.

[0069] refer to Figure 1 and Figure 2When there is only one first static contact 31a, one second static contact 32a and one first moving contact 40a in the first housing 1a, and there is only one third static contact 31b, one fourth static contact 32b and one second moving contact 40b in the second housing 1b, it is preferred that the first static contact 31a and the second static contact 32a are arranged on the first side of the first housing 1a of the first switch unit L1, and the third static contact 31b and the fourth static contact 32b are arranged on the first side of the second housing 1b of the second switch unit L2; the first side of the first housing 1a and the first side of the second housing 1b belong to the same side. The second housing 1b is arranged below the first housing 1a, the third static contact 31b is located below the first static contact 31a, and the fourth static contact 32b is located below the second static contact 32a.

[0070] At the same time, as an alternative embodiment, the first static contact 31a and the second static contact 32a are arranged on the first side of the first housing 1a of the first switch unit L1, and the third static contact 31b and the fourth static contact 32b are arranged on the second side of the second housing 1b of the second switch unit L2; the first side of the first housing 1a and the second side of the second housing 1b belong to different sides, for example, they can be opposite sides, or adjacent sides, no matter opposite sides or adjacent sides, they can be connected in series inside the housing by connecting conductors in series, or they can be connected in series outside the housing by setting a wiring part outside the housing. If they are connected in series inside the housing, corresponding structural support needs to be set inside the housing to avoid short circuit and other situations.

[0071] Preferably, the structure for electrically connecting the second stationary contact 32a and the fourth stationary contact 32b is disposed in the first housing 1a of the first switch unit L1 and the second housing 1b of the second switch unit L2.

[0072] As a specific implementation, the second static contact 32a and the fourth static contact 32b are electrically connected via a series conductor 91 extending from the first housing 1a to the second housing 1b. Figure 1 As shown, the second stationary contact 32a is electrically connected to the third stationary contact 31b via a series conductor 91 that penetrates from the first housing 1a to the second housing 1b.

[0073] For details, please refer to Figure 2As shown, the first side of the first housing 1a and / or the second housing 1b is provided with a through hole 123, and the series conductor 91 is passed through the first housing 1a to the second housing 1b through the through hole 123 and connected to the fourth static contact 32b. Usually, the second housing 1b is provided with an upper cover, and corresponding through holes 123 are provided on both housings. If the second housing 1b is not provided with an upper cover or there is only one partition between the first housing 1a and the second housing 1b, there is only one through hole 123.

[0074] As another specific implementation, please refer to Figure 3 As shown, the first housing 1a and / or the second housing 1b are provided with a through hole 123, the through hole 123 is located between the second static contact 32a and the fourth static contact 32b, one end of the series conductor 91 is connected to the lower side of the second static contact 32a, and the other end passes through the through hole 123 and is connected to the upper side of the fourth static contact 32b, and the second static contact 32a, the fourth static contact 32b and the series conductor 91 are an integrally formed structure. When the fourth static contact 32b of the integrally formed structure is adopted, the assembly process requires the two units to be assembled simultaneously, but at the same time, the fourth static contact 32b of the integrally formed structure reduces the number of product parts and the assembly procedures.

[0075] In the above embodiments, the serial connection between the static contacts is implemented in the housing, but is not limited to the implementation in the housing. That is, the electrical connection structure of the first contact module and the second contact module for serial connection can be located outside the first housing 1a of the first switch unit L1 and the second housing 1b of the second switch unit L2. For example, Figure 5 As shown, a first external wiring portion 3111, a second external wiring portion, a third external wiring portion 3113 and a fourth external wiring portion may be respectively provided on the first static contact 31a and the third static contact 31b for connecting to an external line.

[0076] Specifically, in the present embodiment, the first switch unit L1 includes a first shell 1a, the first shell 1a includes a first side of the first shell 1a, a second side of the first shell 1a, a third side of the first shell 1a and a fourth side of the first shell 1a, the first side of the first shell 1a and the second side of the first shell 1a are two opposite sides, the third side of the first shell 1a and the fourth side of the first shell 1a are another two opposite sides, the first static contact 31a and the second static contact 32a are located on the first side of the first shell 1a, and the third side of the first shell 1a is close to the first static contact 31a. The second switch unit L2 includes a second shell 1b, the second shell 1b includes a first side of the second shell 1b, a second side of the second shell 1b, a third side of the second shell 1b and a fourth side of the second shell 1b, the first side of the second shell 1b and the second side of the second shell 1b are two opposite sides, the third side of the second shell 1b and the fourth side of the second shell 1b are another two opposite sides, the third static contact 31b and the fourth static contact 32b are located on the first side of the second shell 1b, and the third side of the first shell 1b is close to the third static contact 31b.

[0077] In this embodiment, according to the series connection method, the first side of the first shell 1a and the first side of the second shell 1b are the same side. After the first switch unit L1 and the second switch unit L2 are connected in series, the incoming line end is set at the first static contact 31a, and the outgoing line end is set at the third static contact 31b.

[0078] Please refer to Figure 5 , taking external wiring as an example, as an optional method, the input terminal is arranged on the first side of the first shell 1a, and the output terminal is arranged on the first side of the second shell 1b, that is, the input terminal is the third external wiring 3113, and the output terminal is the fourth external wiring (not shown in the figure, which is located below the third external wiring 3113), and the input terminal and the output terminal are respectively at the upper and lower positions on the same side, that is, the same end and the same side.

[0079] Please refer to Figure 5 , taking external wiring as an example, as an optional method, the incoming terminal is arranged on the third side of the first shell 1a, and the outgoing terminal is arranged on the third side of the second shell 1b, that is, the incoming terminal is the first external wiring 3111, and the outgoing terminal is the first external wiring (not shown in the figure, it is located below the third external wiring 3113), the incoming terminal and the outgoing terminal are on the same side, but according to the positions of the first static contact 31a and the third static contact 31b, the incoming terminal and the outgoing terminal are respectively at the upper and lower positions on the same side, that is, the same end and the same side.

[0080] Please refer to Figure 5, taking external wiring as an example, as an optional method, the input terminal is arranged on the first side of the first shell 1a, and the output terminal is arranged on the third side of the second shell 1b, that is, the input terminal is the third external wiring part 3113, and the output terminal is the first external wiring 3111, and the input terminal and the output terminal are arranged on two adjacent sides, that is, different sides of the same end.

[0081] Please refer to Figure 5 , taking external wiring as an example, as an optional method, the incoming line terminal is arranged on the third side of the first shell 1a, and the outgoing line terminal is arranged on the first side of the second shell 1b, that is, the incoming line terminal is the third external wiring part 3113, and the outgoing line terminal is the first external wiring part 3111, and the incoming line terminal and the outgoing line terminal are arranged on two adjacent sides, that is, different sides of the same end.

[0082] In specific applications, a quick wiring structure can be set up through external wiring to achieve specific installation in the application scenario, and the series connection mode of each switch unit can be dynamically changed. For example, the original series connection mode of the first switch unit and the second switch unit can be changed to the first, second and third switch units being connected in series, that is, three switch units are connected in series.

[0083] Alternatively, the original mode of connecting the first switch unit and the second switch unit in series is dynamically changed to connecting the first switch unit and the third switch unit in series.

[0084] For further reference, Figure 6 As shown, in this embodiment, the moving contact of the switch unit moves in a sliding manner, which is different from the traditional moving contact rotation manner. Specifically, taking the first switch unit L1 as an example, a first slide rail 103a is provided on its housing, and the first moving contact 40a can slide on the first slide rail 103a, and contact or separate with the first static contact 31a and the second static contact 32a. The contact driving mechanism is also different from the traditional structure. In this embodiment, the contact driving mechanism includes a rotatably arranged transmission shaft 70, a rotating frame 60 fixed on the transmission shaft 70, and a first connecting rod 5a and a second connecting rod 5b hinged at both ends of the rotating frame 60. The first connecting rod 5a and the second connecting rod 5b are respectively hinged with the two first moving contacts 40a. The transmission shaft 70 rotates through the first connecting rod 5a and the second connecting rod 5b to drive the two moving contacts to slide linearly along the corresponding first slide rail 103a, so that each moving contact cooperates with the corresponding two static contacts.

[0085] Further, please combine Figure 7As shown, the first moving contact 40a is arranged on the support member 80 through the first support member 80, and includes a slider 802 slidably connected to the first slide rail 103a, a contact connecting portion 803 fixedly connected to the first moving contact 40a, and a transmission connecting portion 801 for transmission connection with a contact driving mechanism; the first slide rail 103a extends from a position adjacent to the contact driving mechanism toward the direction of the static contact assembly and is adjacent to the static contact assembly, and the first moving contact 40a can move along the slide rail 103 under the drive of the contact driving mechanism to contact or separate from the static contact.

[0086] In this embodiment, the first slide rail 103a is formed by two parallel retaining walls 1030 arranged on the bottom surface of the housing 10. The two retaining walls 1030 can provide a limit for the two sides of the slider 802, that is, the sliding track of the moving contact is pre-set, and the first moving contact 40a can slide linearly along the first slide rail 103a under the drive of the contact driving mechanism. The retaining wall 1030 can be a raised rib or a side wall of a slide groove. Of course, if a retaining wall structure is adopted, a slide groove structure can be set on the slider 802 to correspond thereto.

[0087] For this embodiment, the first slide rail 103a is arranged in a straight line. Based on the existing square or rectangular shell structure, the straight line arrangement can save more movement space. Of course, the first slide rail 103a can also be arranged in a curved manner. For example, in some special usage scenarios, the shell needs to be made into an arc structure, or based on the component arrangement requirements inside the shell, the first slide rail 103a can also be arranged in a circular arc structure.

[0088] In this embodiment, Figure 8 As shown, the first moving contact 40a is provided with a support member connecting portion 401, and the support member connecting portion 401 includes a connecting hole 4011 and a key slot 4012 located on the side wall of the connecting hole 4011. The first moving contact 40a is installed on the contact connecting portion 803 through the support member connecting portion 401, which can be well connected to prevent the moving contact from loosening and rotating. The contact connecting portion 803 of the corresponding support member 80 includes a connecting shaft corresponding to the connecting hole 4011 and a key structure symmetrically arranged with a protrusion arranged on the periphery of the connecting shaft.

[0089] In this embodiment, a slide rail surface (i.e., the top surface of the retaining wall 1030) is provided on the top of the retaining wall 1030, and the first moving contact 40a has a first moving contact piece 41, and the first moving contact piece 41 is provided with a first supporting surface 411, and the first supporting surface 411 is mounted on the slide rail surface and at the same time forms a contact and mutual limitation with the upper limit surface 804 of the slider 802, and the first moving contact 40a also slides on the slide rail surface through the first supporting surface 411.

[0090] Furthermore, the first moving contact 40a clamps the stationary contact in a clamp-like manner, so the moving contact 40 also has a stacked second moving contact piece 42, which is clamp-like clamped by providing openings at both ends. The second moving contact piece 42 is provided with a second supporting surface (not shown in the figure) facing opposite to the first supporting surface 411, which is used to cooperate with the first supporting surface 411 to form upper and lower limit positions for the first moving contact piece 41 and the second moving contact piece 42.

[0091] In this embodiment, there are two first slide rails 103a extending from the middle area of ​​the housing 10 to the two side edges of the housing 10 near the static contacts. By setting up the double slide rails, two independent first moving contacts 40a can slide, thereby realizing the setting of two circuit switches in one switch unit.

[0092] Combination Figure 1 and Figure 2 As shown, the overall structure of the second switch unit L2 is the same as that of the first switch unit L1, the movement mode of the second moving contact 40b is also the same as that of the first moving contact 40a, and a second slide rail (not shown in the figure) is also provided in the shell of the second switch unit L2. The transmission shaft 70 passes through the first switch unit L1 to the second switch unit L2, and is connected to a rotating frame 60 and a connecting rod (not shown in the figure), thereby realizing the driving of the second moving contact 40b, so that it slides along the second slide rail and contacts or separates from the third static contact 31b and the fourth static contact 32b.

[0093] It should be noted that in the description of the present invention, the terms "upper", "lower", "left", "right", "inner", "outer", etc. indicate directions or positional relationships based on directions or positional relationships shown in the accompanying drawings, or directions or positional relationships that are usually placed when in use, and are only for the convenience of description, rather than indicating that the device or element referred to must have a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish descriptions, and cannot be understood as indicating relative importance.

[0094] The above contents are further detailed descriptions of the present invention in combination with specific preferred embodiments, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. A rotary isolating switch, comprising at least two stacked first switch units (L1) and second switch units (L2), wherein the first switch unit (L1) is provided with a first contact module, and the second switch unit (L2) is provided with a second contact module; The first contact module includes at least one loop switch, and the second contact module includes at least one loop switch. One loop switch of the first contact module and one loop switch of the second contact module are connected in series on the first side of the rotary isolating switch. After the two loop switches are connected in series, the incoming line end and the outgoing line end are respectively located at the same end of the rotary isolating switch.

2. The rotary isolating switch according to claim 1, characterized in that: The first contact module comprises: a first moving contact (40a), a first stationary contact (31a) and a second stationary contact (32a); the first stationary contact (31a), the second stationary contact (32a) and the first moving contact (40a) form a circuit switch; the first moving contact (40a) is used to simultaneously contact or disengage with the first stationary contact (31a) and the second stationary contact (32a) to achieve conduction and disconnection of the first stationary contact (31a) and the second stationary contact (32a); The second contact module comprises: a second moving contact (40b), a third stationary contact (31b), and a fourth stationary contact (32b); the third stationary contact (31b), the fourth stationary contact (32b), and the second moving contact (40b) form a loop switch; the second moving contact (40b) is used to simultaneously contact or disengage with the third stationary contact (31b) and the fourth stationary contact (32b) to achieve conduction and disconnection of the third stationary contact (31b) and the fourth stationary contact (32b); The first stationary contact (31a), the second stationary contact (32a), the third stationary contact (31b), and the fourth stationary contact (32b) are all arranged on a first side of the rotary isolating switch and close to two ends of the side; the third stationary contact (31b) is arranged below the first stationary contact (31a), and the fourth stationary contact (32b) is arranged below the second stationary contact (32a); The second stationary contact (32a) is electrically connected to the fourth stationary contact (32b) to realize the series connection of the first switch unit (L1) and the second switch unit (L2), the incoming line end is arranged at one end of the first stationary contact (31a), and the outgoing line end is arranged at one end of the third stationary contact (31b).

3. The rotary isolating switch according to claim 2, characterized in that: The first switch unit (L1) comprises a first shell (1a), the first shell (1a) comprises a first side of the first shell (1a), a second side of the first shell (1a), a third side of the first shell (1a) and a fourth side of the first shell (1a), the first side of the first shell (1a) and the second side of the first shell (1a) are two opposite sides, the third side of the first shell (1a) and the fourth side of the first shell (1a) are another two opposite sides, the first static contact (31a) and the second static contact (32a) are located on the first side of the first shell (1a), and the third side of the first shell (1a) is close to the first static contact (31a); The second switch unit (L2) comprises a second shell (1b), the second shell (1b) comprises a first side of the second shell (1b), a second side of the second shell (1b), a third side of the second shell (1b) and a fourth side of the second shell (1b), the first side of the second shell (1b) and the second side of the second shell (1b) are two opposite sides, the third side of the second shell (1b) and the fourth side of the second shell (1b) are another two opposite sides, the third static contact (31b) and a fourth static contact (32b) are located on the first side of the second shell (1b), and the third side of the first shell (1b) is close to the third static contact (31b); The first side of the first housing (1a) and the first side of the second housing (1b) are the same side; after the first switch unit (L1) and the second switch unit (L2) are connected in series, their inlet end is arranged at the first static contact (31a), and their outlet end is arranged at the third static contact (31b).

4. The rotary isolating switch according to claim 3, characterized in that: The inlet terminal is arranged on the first side of the first shell (1a), and the outlet terminal is arranged on the first side of the second shell (1b).

5. The rotary isolating switch according to claim 3, characterized in that: The inlet terminal is arranged on the third side of the first shell (1a), and the outlet terminal is arranged on the third side of the second shell (1b).

6. The rotary isolating switch according to claim 3, characterized in that: The inlet terminal is arranged on the first side of the first shell (1a), and the outlet terminal is arranged on the third side of the second shell (1b).

7. The rotary isolating switch according to claim 3, characterized in that: The inlet terminal is arranged on the third side of the first shell (1a), and the outlet terminal is arranged on the first side of the second shell (1b).

8. The rotary isolating switch according to claim 3, characterized in that: The first switch unit (L1) comprises two independent loop switches, wherein a first static contact (31a) and a second static contact (32a) of one loop switch are located on a first side of a first housing (1a), and a first static contact (31a) and a second static contact (32a) of the other loop switch are located on a second side of the first housing (1a); The second switch unit (L2) comprises two independent loop switches, wherein a third static contact (31b) and a fourth static contact (32b) of one loop switch are located on the first side of the second housing (1b), and a third static contact (31b) and a fourth static contact (32b) of the other loop switch are located on the second side of the second housing (1b). A loop switch in the first switch unit (L1) and a loop switch in the second switch unit (L2) are connected in series on the first side of the first housing (1a).

9. The rotary isolating switch according to any one of claims 2 to 8, characterized in that: The second stationary contact (32a) is electrically connected to the fourth stationary contact (32b) via an electrical connection structure, and the electrical connection structure is arranged in a first housing (1a) of the first switch unit (L1) and a second housing (1b) of the second switch unit (L2).

10. The rotary isolating switch according to claim 9, characterized in that: The first shell (1a) and / or the second shell (1b) is provided with a penetrating through hole (123), and the second static contact (32a) and the fourth static contact (32b) are connected via an electrical connection structure extending from the first shell (1a) to the second shell (1b) through the through hole (123).

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