Contactor module and star-delta starting switch

Abstract

The utility model discloses a contactor module and a star-delta starting switch. The star-delta starting switch comprises a second switch module, the switch further comprises a first switch module, and the first switch module comprises a first contact assembly, a first contact support and a first electromagnetic system. The first electromagnetic system is connected with the first contact support, and when the first electromagnetic system works, the first contact support is driven to slide, so that the first movable contact component is in contact with the first static contact component, and connection of the first switch module is realized; the first reset piece is directly or indirectly connected with the first contact support, and drives the first contact support to return after the first electromagnetic system stops working, so as to realize the breaking of the first switch module; in the height direction, the first switch module is arranged above the second switch module, the sliding direction of the first contact support and the sliding direction of the second contact support are perpendicular to each other, and the sliding direction of one of the first contact support and the second contact support is parallel to the height direction. The device has the characteristic of higher height dimension.

Description

Technical Field

[0001] This application relates to the field of low-voltage switchgear, specifically a contactor module and a star-delta starter switch. Background Technology

[0002] Whether in the field of electric motors or elevators, star connection and delta connection are often required. The simplest way to achieve this is to buy two contactors and short-circuit the three phases of one of them to use it as a star contactor.

[0003] With the continuous development of those skilled in the art, a highly integrated contactor has emerged, which integrates the star contactor and the delta contactor together. For example, the star-delta starter switch disclosed in CN117393341A integrates the star contact device and the delta contact device into two contactors, and then uses a common electromagnetic system to complete the conversion between star and delta.

[0004] Although this type of star contact device and corner contact device can save one electromagnetic system, this electromagnetic system needs to drive two contact systems, so its requirements are undoubtedly higher than those of ordinary contactors (the electromagnetic system of an ordinary contactor only needs to drive one contact system).

[0005] However, if the contact support movement is the same as that of CN117393341A (sliding along the height direction), but the contact support is split into two parts and each is equipped with an electromagnetic system, it will undoubtedly make the overall product height too long, which is not conducive to product design and will exceed the depth of the cabinet (generally, these types of switches are installed in the starter cabinet, and the total height is shorter than the depth of the cabinet).

[0006] Therefore, designing a contactor module with two independent electromagnetic and contact systems while ensuring that the product has a reasonable height is undoubtedly a challenge. Summary of the Invention

[0007] In view of this, the purpose of this application is to overcome the shortcomings of the prior art and to provide a contactor module and a star-delta starter switch.

[0008] This application provides: a contactor module including a second switch module; the second switch module includes,

[0009] The second contact assembly includes three second moving contacts and three sets of second stationary contact components, with each second moving contact corresponding to a set of second stationary contact components;

[0010] The second contact support is in a sliding configuration, and the second moving contact is mounted on the second contact support and slides along with the second contact support.

[0011] The second electromagnetic system is connected to the second contact support. When the second electromagnetic system is working, it drives the second contact support to slide, so that the second moving contact contacts the second stationary contact component.

[0012] The second reset component is directly or indirectly connected to the second contact support. After the second electromagnetic system stops working, it drives the second contact support back to its original position, causing the second moving contact to separate from the second stationary contact component.

[0013] It also includes a first switch module, which includes,

[0014] The first contact assembly includes a first movable contact member and three sets of first stationary contact members. When the first movable contact member and the first stationary contact member are in contact, they together form a star-shaped connection.

[0015] The first contact support is slidably configured, and the first moving contact component is configured on the first contact support and slides along with the first contact support;

[0016] The first electromagnetic system is connected to the first contact support. When the first electromagnetic system is working, it drives the first contact support to slide, so that the first moving contact component contacts the first stationary contact component, thereby realizing the connection of the first switch module.

[0017] The first reset component is directly or indirectly connected to the first contact support. After the first electromagnetic system stops working, it drives the first contact support to return to its original position, thereby disconnecting the first switch module.

[0018] In the height direction, the first switch module is arranged above the second switch module, and the sliding directions of the first contact support and the second contact support are perpendicular to each other, and the sliding direction of one of them is parallel to the height direction.

[0019] In some embodiments of this application, the first moving contact component includes three first moving contacts, which are short-circuited to each other. Each group of first stationary contact components includes a first stationary contact, and the first moving contact corresponds to the first stationary contact in a one-to-one manner, so as to achieve a star connection when the first moving contact component and the first stationary contact component are in contact.

[0020] In some embodiments of this application, the first moving contact component includes two first moving contacts, each group of first stationary contact components includes a first stationary contact, the two first moving contacts correspond one-to-one with the first stationary contacts of two groups of first stationary contact components, and the first stationary contact of the other group of first stationary contact components is short-circuited with both first moving contacts, so as to achieve a star connection when the first moving contact component and the first stationary contact component are in contact.

[0021] In some embodiments of this application, the first moving contact component includes two first moving contacts that are short-circuited to each other, each group of first stationary contact components includes a first stationary contact, the two first moving contacts correspond one-to-one with the first stationary contacts of two groups of first stationary contact components, and the first stationary contact of the other group of first stationary contact components is short-circuited with the first moving contact, so as to achieve a star connection when the first moving contact component and the first stationary contact component are in contact.

[0022] In some embodiments of this application, the first moving contact component includes three first moving contacts, and each first stationary contact component includes a first stationary contact I and a first stationary contact II corresponding to a first moving contact. The first stationary contacts I of the three sets of first stationary contact components are short-circuited or the first stationary contacts II of the three sets of first stationary contact components are short-circuited to achieve a star connection when the first moving contact component and the first stationary contact component are in contact.

[0023] In some embodiments of this application, an interlocking component is also included, which is connected between the first contact support and the second contact support. When the second moving contact contacts the second stationary contact member, the interlocking component blocks the path of the first contact support to prevent the first switch module from being turned on. After the second moving contact separates from the second stationary contact member, the interlocking component is driven by the second contact support to release the obstruction of the first contact support.

[0024] In some embodiments of this application, the interlocking assembly includes an interlocking member and an interlocking spring, with the interlocking spring abutting against the interlocking member; the interlocking member is rotatably configured or slidably configured along a straight line, including a first position and a second position; when the second moving contact contacts the second stationary contact member, the interlocking member is held in the first position under the action of the interlocking spring to block the support of the first contact; after the second moving contact separates from the second stationary contact member, the interlocking member is driven to the second position by the support of the second contact, releasing the obstruction of the support of the first contact.

[0025] In some embodiments of this application, the interlocking assembly includes an interlocking member, which is rotatably configured or slidably configured along a straight line, including a first position and a second position; the interlocking member and the second contact support are linked; after the second moving contact separates from the second stationary contact member, the interlocking member is driven to the second position by the second contact support, releasing the obstruction to the first contact support; when the second moving contact contacts the second stationary contact member, the interlocking member is driven to the first position by the second contact support to block the first contact support.

[0026] In some embodiments of this application, a locking groove is provided on the first contact support. When the interlocking component is in the locking groove, it blocks the path of the first contact support. When the interlocking component moves out of the locking groove, it releases the obstruction of the first contact support.

[0027] In some embodiments of this application, the interlocking assembly is disposed between the first contact support and the second contact support in the height direction.

[0028] In some embodiments of this application, the first contact support includes a first mounting portion and a second mounting portion, and the first movable contact member is disposed on the first mounting portion; the first electromagnetic system includes a first armature, a first coil assembly and a first magnetic yoke, the first armature is fixed to the second mounting portion; the second mounting portion is connected to the first mounting portion to form a receiving groove, and the first coil assembly and the first magnetic yoke are arranged in the receiving groove.

[0029] In some embodiments of this application, the first contact support includes a first mounting portion and a second mounting portion, and a first movable contact member is disposed on the first mounting portion; the first electromagnetic system includes a first armature, a first coil assembly and a first magnetic yoke, and the first armature is fixed to the second mounting portion; the first coil assembly and the first magnetic yoke are arranged on one side of the first contact support and close to the second mounting portion.

[0030] In some embodiments of this application, the first switch module further includes a first housing, and the first contact component, the first contact support, and the first electromagnetic system are all arranged inside the first housing; a first guide is provided on the first housing, and the first contact support cooperates with the first guide, and the first guide guides the sliding of the first contact support.

[0031] In some embodiments of this application, the first guide member is fastened with screws, fastened with snaps, or plugged into the first housing.

[0032] In some embodiments of this application, a first position switch is fixed on the first guide member, and the first position switch is associated with a first contact support or a first electromagnetic system; when the first switch module is turned on, the first position switch and the first contact support or the first electromagnetic system are in one state; after the first switch module is turned off, the first position switch and the first contact support or the first electromagnetic system are in another state.

[0033] In some embodiments of this application, a signal interface is fixed on the first guide member, and the interface portion of the signal interface is exposed by the first housing.

[0034] In some embodiments of this application, the sliding direction supported by the second contact is parallel to the height direction, and the sliding direction supported by the first contact is parallel to the width direction or the length direction.

[0035] In some embodiments of this application, the first switch module further includes a first housing, the second switch module further includes a second housing, and the first housing is fixed above the second housing.

[0036] In some embodiments of this application, a first position switch is also included, which is associated with a first contact support or a first electromagnetic system; when the first switch module is turned on, the first position switch and the first contact support or the first electromagnetic system are in one state; after the first switch module is turned off, the first position switch and the first contact support or the first electromagnetic system are in another state.

[0037] In some embodiments of this application, a second position switch is also included, which is associated with a second contact support or a second electromagnetic system; when the second moving contact is in contact with the second stationary contact member, the second position switch and the second contact support or the second electromagnetic system are in one state; after the second moving contact is separated from the second stationary contact member, the second position switch and the second contact support or the second electromagnetic system are in another state.

[0038] A star-delta starter switch, comprising a third switch module and the aforementioned contactor module; the third switch module includes,

[0039] The third contact assembly includes three third moving contacts and three sets of third stationary contact components, with each third moving contact corresponding to a set of third stationary contact components;

[0040] The third contact support is in a sliding configuration, and the third moving contact is mounted on the third contact support and slides along with the third contact support.

[0041] The third electromagnetic system is connected to the third contact support. When the third electromagnetic system is working, it drives the third contact support to slide, so that the third moving contact contacts the third stationary contact component.

[0042] The third reset component is directly or indirectly connected to the third contact support. After the third electromagnetic system stops working, it drives the third contact support back to its original position, causing the third moving contact to separate from the third stationary contact component.

[0043] The three sets of third stationary contact components correspond one-to-one with the three sets of second stationary contact components, and a portion of the three sets of third stationary contact components is always electrically connected to a portion of the three sets of second stationary contact components.

[0044] The advantages of this application compared to the prior art are:

[0045] The applicant discovered that for a typical contactor, the actuation direction of its electromagnetic system and the movement direction supported by its contacts are both in the height direction. Therefore, integrating two contactors together would result in an excessively tall product simply due to the superposition of their height directions.

[0046] The applicant has modified the contactors of one of the switch modules (or contactors) to allow for changes in the direction of contact movement, enabling the two switch modules to minimize the vertical space required even when stacked. This is because only one switch module has a contactor whose movement is parallel to the vertical direction, while the other's is perpendicular. By utilizing space in other directions, the vertical space required is significantly reduced, thus decreasing the overall product height. Attached Figure Description

[0047] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0048] Figure 1 A perspective view of a contactor module according to an embodiment of this application is shown;

[0049] Figure 2 An internal schematic diagram of a contactor module according to an embodiment of this application is shown;

[0050] Figure 3 This paper shows an internal schematic diagram of the first switch module in this application;

[0051] Figure 4 A schematic diagram of the first contact support and the first electromagnetic system of the first switch module in this application is shown;

[0052] Figure 5 This application illustrates one embodiment of the first contact component of the first switch module;

[0053] Figure 6 Another embodiment of the first contact component of the first switch module in this application is shown;

[0054] Figure 7 Another embodiment of the first contact component of the first switch module in this application is shown;

[0055] Figure 8 Another embodiment of the first contact component of the first switch module in this application is shown;

[0056] Figure 9 This application illustrates one embodiment of the first contact component of the first switch module;

[0057] Figure 10 This application illustrates a double-break implementation of the first contact component of the first switch module.

[0058] Figure 11 An internal schematic diagram of the second switch module in this application is shown;

[0059] Figure 12 This diagram illustrates the positional relationship between the interlocking assembly and the first and second contact supports in this application.

[0060] Figure 13 This illustration shows a schematic diagram of one embodiment of the interlocking component in the second position.

[0061] Figure 14 This illustration shows a schematic diagram of one embodiment of the interlocking component in the first position.

[0062] Figure 15 This illustration shows a schematic diagram of another embodiment of the interlocking component in the second position in this application;

[0063] Figure 16 This illustration shows a schematic diagram of another embodiment of the interlocking component in the first position according to this application;

[0064] Figure 17 This illustration shows a schematic diagram of the interlocking component in a second position in another embodiment of this application;

[0065] Figure 18 A schematic diagram showing the cooperation between the first guide and the first contact support is shown;

[0066] Figure 19 A schematic diagram showing the fit between the first guide member and the first housing is provided.

[0067] Figure 20 A schematic diagram of the star-delta start switch of this application is shown;

[0068] Figure 21 The internal schematic diagram of the star-delta starter switch of this application is shown. Detailed Implementation

[0069] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0070] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0071] Furthermore, the terms "main" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "main" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0072] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0073] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the main feature and the second feature are in direct contact, or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the main feature is directly above or diagonally above the second feature, or simply indicates that the main feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the main feature is directly below or diagonally below the second feature, or simply indicates that the main feature is at a lower horizontal level and less electrically connected to the three-phase power supply than the second feature. Example

[0074] like Figures 1-19 As shown, an embodiment of this application provides a contactor module, which includes a first switch module 100 and a second switch module 200.

[0075] The first switch module 100 is essentially a star contactor, which includes a first housing 110, a first electromagnetic system 120, a first contact support 130, a first contact assembly 140, and a first reset element 150. The first electromagnetic system 120, the first contact support 130, the first contact assembly 140, and the first reset element 150 are arranged in the first housing 110.

[0076] The first contact support 130 is laterally slidable inside the first housing 110. The lateral movement here is multiplied, and in this embodiment, it slides along the width direction D of the product.

[0077] The first electromagnetic system 120 essentially utilizes the principle of electromagnets. It includes a first coil assembly 121, a first armature 122, and a first magnetic yoke 123. The first coil assembly 121 includes a first frame and a first coil. The first magnetic yoke 123 is fixed, while the first armature 122 is fixed to the first contact support 130. When the first coil assembly 121 is energized (or when the first electromagnetic system 120 is working), the first coil assembly 121 generates a magnetic field. Under the action of the magnetic field, the first armature 122 slides, thereby causing the first contact support 130 to slide, thus completing the connection of the first switch module 100.

[0078] Regarding the arrangement of the first electromagnetic system 120, in this embodiment,

[0079] The first contact support 130 includes a first mounting portion 131 and a second mounting portion 132. A first moving contact member 141 is disposed on the first mounting portion 131, and a first armature 122 is fixed to the second mounting portion 132. The first mounting portion 131 and the second mounting portion 132 are connected and together form a receiving groove 133, in which the first coil assembly 121 and the first magnetic yoke 123 are arranged.

[0080] This electromagnetic system setup will make the overall structure more compact, which will help reduce the overall size of the first switch module 100.

[0081] Of course, the arrangement of the first electromagnetic system 120 can also adopt the conventional arrangement of a regular contactor. That is, the first coil assembly 121 and the first magnetic yoke 123 are arranged on one side of the first contact support 130 and close to the second mounting part 132.

[0082] The first reset element 150 is directly or indirectly connected to the first contact support 130. After the first electromagnetic system 120 stops working, it drives the first contact support 130 back to its original position, completing the disconnection of the first switch module 100. Here, "directly connected to the first contact support 130" means directly abutting against the first contact support 130. "Indirectly connected to the first contact support 130" means abutting against the first armature 122. In either case, the first contact support 130 is returned to its original position. In this embodiment, the first reset element 150 is a compression spring, abutting between the first armature 122 and the first frame. Of course, depending on the different designs of the first armature 122 or the first contact support 130, it can also be changed to abut between the first armature 122 and the first magnetic yoke 123, or between the first armature 122 and the first housing 110, or between the first contact support 130 and the first frame, or between the first contact support 130 and the first magnetic yoke 123, or between the first contact support 130 and the first housing 110. Regardless of the method, as long as the normal return of the first contact support 130 is guaranteed, it is acceptable. There are many options for the first reset member 150; in this embodiment, it is a compression spring. Of course, other elastic components such as tension springs, torsion springs, and spring sheets can also be used.

[0083] The first contact assembly 140 includes a first moving contact member 141 and three sets of first stationary contact members 142. The first moving contact member 141 is disposed on the second mounting portion 132 and moves with the first contact support 130. When the first moving contact member 141 and the first stationary contact member 142 come into contact, they together form a star connection. Here, the three sets of first stationary contact members 142 correspond to the three phase lines respectively.

[0084] There are many ways to form a star connection. Here are a few examples:

[0085] like Figure 5-7 As shown, in this configuration, the first moving contact member 141 includes three first moving contacts 141a, which are short-circuited to each other. Each group of first stationary contact members 142 includes a first stationary contact 142a, with each moving contact 141a corresponding to a first stationary contact 142a, so that when the first moving contact members 141 and 142 are in contact, they together form a star connection. Each first stationary contact 142a is disposed on a first stationary contact 1420, while the first moving contact 141a can be disposed on three first moving contacts 1410, and then short-circuited by other conductors, such as flexible wires or rigid busbars. Figure 5 As shown. Of course, all three first moving contacts 141a can also be set on a single first moving contact 1410 (already forming a short circuit), as shown. Figure 6As shown. Of course, it's also possible that two of them are located on one first moving contact 1410, and the other on another first moving contact 1410, with a short circuit formed between them by other conductors, such as flexible wires or rigid busbars. Figure 7 As shown. In this method of short-circuiting the moving contact, each phase line has a break point, namely the first moving contact 141a and the first stationary contact 142a, which can greatly save the number of stationary contacts (in the prior art, each phase line of the contactor has a double break point structure, and each moving contact needs to correspond to two stationary contacts).

[0086] like Figure 8 As shown, in this configuration, the first moving contact member 141 includes two first moving contacts 141a, and each group of first stationary contact members 142 includes a first stationary contact 142a. Each first stationary contact 142a is disposed on a first stationary contact 1420. The two first moving contacts 141a correspond one-to-one with the two first stationary contacts 142a, while the other first stationary contact 142a is short-circuited with both first moving contacts 141a, so that when the first moving contact member 141 and the first stationary contact member 142 are in contact, they together form a star connection. In this configuration, the two first moving contacts 141a can both be disposed on a first moving contact 1410 (already short-circuited), as shown below. Figure 9 As shown. Alternatively, two first moving contacts 141a can be disposed on two first moving contacts 1410. In this configuration, only two of the three phase lines are disconnectable (each of these two phase lines has a break point), while the third phase line is always connected.

[0087] like Figure 9 As shown, in this configuration, the first moving contact member 141 includes two first moving contacts 141a, and each group of first stationary contact members 142 includes a first stationary contact 142a. Each first stationary contact 142a is disposed on a first stationary contact 1420, and the two first moving contacts 141a correspond one-to-one with the two first stationary contacts 142a. Here, the two first moving contacts 141a are short-circuited to each other, and there are many ways to do this, such as using a flexible wire or a rigid busbar. The first stationary contact 142a of the phase line without a first moving contact 141a is short-circuited with the first moving contacts 141a of other phase lines; of course, the short-circuiting method also includes using a flexible wire or a rigid busbar. In this way, a star connection can be formed when the first moving contact member 141 and the first stationary contact member 142 are in contact.

[0088] like Figure 10As shown, in this configuration, the first moving contact member 141 includes three first moving contacts 1410, each of which includes two first moving contact points 141a. Each first stationary contact member 142 includes a first stationary contact point I 142a1 and a first stationary contact point II 142a2, the first stationary contact point I 142a1 being disposed on a first stationary contact point I 14201 and the first stationary contact point II 142a2 being disposed on a first stationary contact point II 14202. Here, all three phase lines have a double-break structure. That is, the two moving contacts 141a of a first moving contact 1410 correspond to the first stationary contact I 142a1 and the first stationary contact II 142a2 of a first stationary contact component 142, respectively. The first stationary contacts I 142a1 and II 142a2 are not connected individually; the corresponding phase lines are only connected when both moving contacts 141a simultaneously contact the first stationary contacts I 142a1 and II 142a2. By short-circuiting all first stationary contacts I 142a1 or all first stationary contacts II 142a2, a star connection can be formed when the first moving contact component 141 and the first stationary contact component 142 are in contact. There are many ways to short-circuit, such as connecting the three first stationary contacts I 142a1 via a flexible connector, a rigid busbar, or making the first stationary contacts I 142a1 a single, integrally formed component. Similarly, when all first stationary contacts II142a2 are short-circuited, the above methods can also be used.

[0089] Regardless of the method, since the first moving contact member 141 is located on the first contact support 130, when the first electromagnetic system 120 is working, as the first contact support 130 slides, the first moving contact member 141 and the first stationary contact member 142 come into contact, completing the star connection, that is, the first switch module 100 is turned on. When the first electromagnetic system 120 stops, as the first contact support 130 returns to its original position, the first moving contact member 141 and the first stationary contact member 142 can no longer form a star connection, that is, the first switch module 100 is turned off.

[0090] The second switch module 200 is essentially an angle contactor, and it includes a second housing 210, a second electromagnetic system 220, a second contact support 230, a second contact assembly 240, and a second reset element. The second electromagnetic system 220, the second contact support 230, the second contact assembly 240, and the second reset element are arranged in the second housing 210.

[0091] Here, the overall working principle of the second switch module 200 is similar to that of a regular contactor, so we will only briefly describe its working principle and will not go into detail about its structure.

[0092] The second contact assembly 240 includes three second moving contacts 241 and three sets of second stationary contact members 242. Each second moving contact 241 corresponds to one set of second stationary contact members 242, and each moving contact and each set of stationary contact members corresponds to one of the three phase lines. Each set of stationary contact members has two second stationary contacts, namely second stationary contact I 2421 and second stationary contact II 2422, which together with the corresponding moving contact form a double-break structure.

[0093] The second contact support 230 is configured to slide longitudinally, or in other words, to slide along a direction parallel to the height direction H (or simply the height direction H). The second moving contact 241 is mounted on the second contact support 230 and slides along with the second contact support 230 to achieve contact and separation with the second stationary contact member 242.

[0094] The second electromagnetic system 220 includes a second armature, a second coil assembly, a second magnetic yoke, etc., which will not be described in detail here. The second contact support 230 is fixed on the second armature. When the second coil assembly is energized, the second magnetic yoke attracts the second armature to move, so as to realize the contact between the second moving contact 241 and the second stationary contact member 242, and complete the connection of the second switch module 200.

[0095] The second reset element adopts a compression spring design; of course, tension springs, torsion springs, etc., can also be used. The installation method of the second reset element is similar to that of the first reset element 150, and will not be described again here. As long as the second reset element is directly or indirectly connected to the second contact support 230, so that after the second electromagnetic system 220 stops working, the second reset element can drive the second contact support 230 to return to its original position, thereby realizing the disconnection of the second switch module 200, it is acceptable.

[0096] Here, in the height direction H, the first switch module 100 is positioned above the second switch module 200. Ideally, the first switch module 100 should be positioned directly above the second switch module 200, resulting in a more compact overall contactor module. Alternatively, the first switch module 100 can be positioned diagonally above the second switch module 200. "Diagonally above" means that in the height direction H, the first switch module 100 is still positioned above the second switch module 200; however, in other dimensions, such as a rectangular width, a rectangular length, or a combination of width and length, the first switch module 100 and the second switch module 200 are misaligned.

[0097] For the first contact support 130 and the second contact support 230, their sliding directions are perpendicular to each other; that is, the operating directions of the first electromagnetic system 120 and the second electromagnetic system 220 are perpendicular to each other. Of course, the first contact support 130 can slide along the width direction D or the length direction L. Similarly, besides the above configuration, the first contact support 130 can be modified to slide vertically (along the height direction H), and the second contact support 230 can be modified to slide laterally (along the length or width direction D), as long as the sliding direction of one of the contact supports is parallel to the height direction H. By using different sliding directions of the two contact supports, and placing the first switch module 100 above the second switch module 200 (on the height direction H), the space occupied in the height direction H is greatly reduced by utilizing space in other directions, thus minimizing the space in the height direction H and reducing the product's height dimension.

[0098] To ensure that the first switch module 100 is prevented from being turned on when the second switch module 200 is in the on state, an interlocking assembly 300 is provided between the first contact support 130 and the second contact support 230. This interlocking assembly 300 is mechanical. When the second moving contact 241 contacts the second stationary contact member 242, the interlocking assembly 300 blocks the path of the first contact support 130 to prevent the first switch module 100 from being turned on. After the second moving contact 241 separates from the second stationary contact member 242, the interlocking assembly 300 is driven by the second contact support 230 to release the obstruction of the first contact support 130.

[0099] For the interlocking assembly 300, it is positioned between the first contact support 130 and the second contact support 230 in the height direction H. This arrangement of the interlocking assembly 300 is more suitable for the arrangement of the first switch module 100 and the second switch module 200.

[0100] There are many ways to achieve this interlocking mechanism:

[0101] like Figure 12As shown, the interlocking assembly 300 in this configuration includes an interlocking member 310 and an interlocking spring 320. The interlocking member 310 is rotatably mounted, and one end of the interlocking spring 320 abuts against the interlocking member 310, while the other end abuts against the first housing 110. Of course, it can also abut against other static components besides the first housing 110. The interlocking member 310 includes a first position S1 that blocks the path of the first contact support 130, and a second position S2 that releases the obstruction of the first contact support 130. Here, the first position S1 is maintained by the interlocking spring 320, meaning that the interlocking member 310 blocks the path of the first contact support 130 under the action of the interlocking spring 320. When the second contact support 230 moves upward (or, in other words, after the second moving contact 241 separates from the second stationary contact member 242), the second contact support 230 pushes the interlocking member 310 to rotate, causing the interlocking member 310 to move to the second position S2. At this time, the interlocking spring 320 is compressed and stores energy. When the second contact support 230 moves downward (or, in other words, the second moving contact 241 comes into contact with the second stationary contact member 242), the interlocking member 310 returns to the first position S1 under the action of the interlocking spring 320.

[0102] Of course, as an alternative to this method, the movement of the interlocking component 310 can also be changed to a sliding setting. For example... Figure 15 As shown, the same locking effect can be achieved.

[0103] Regardless of the method, this interlocking assembly 300 with interlocking spring 320 has the characteristics of relatively simple structure and good locking effect.

[0104] like Figure 16 As shown, the interlocking assembly 300 in this configuration consists only of the interlocking member 310. The interlocking member 310 is rotatably mounted on the first housing 110, although it can also be rotatably mounted on other static components besides the first housing 110. The interlocking member 310 and the second contact support 230 are linked. The interlocking member 310 includes a first position S1 (the effect of the first position S1 is the same as above, and will not be repeated here) and a second position S2 (the effect of the second position S2 is the same as above, and will not be repeated here). Due to the linked configuration, the movement of the second contact support 230 will cause the interlocking member 310 to rotate, thus changing its position. When the second contact support 230 moves upward, it will cause the interlocking member 310 to rotate to the second position S2; and when the second contact support 230 moves downward (or, in other words, the second moving contact 241 contacts the second stationary contact member 242), it will cause the interlocking member 310 to rotate to the first position S1.

[0105] Of course, there are alternatives to the interlocking component 310. The movement of the interlocking component 310 can be changed to a sliding setting, which can also achieve the same locking effect.

[0106] For the interlocking component 310 of the aforementioned linkage structure, there are many mechanical ways to achieve linkage between the two components. For example, they can be connected by a connecting rod 330 (such as...). Figure 17 (As shown), gear transmission, inclined plane transmission, etc. Regardless of the method, as long as the movement of the second contact 230 can drive the position change of the interlocking component 310, it is acceptable.

[0107] Compared to the interlocking spring 320, the interlocking component 310 of this linkage method has a more streamlined structure and is much easier to assemble.

[0108] Regardless of the method, to facilitate locking of the first contact support 130, a locking groove 134 is provided on the first contact support 130. When the interlocking assembly 300 (interlocking member 310) is in the first locking groove 134, it is in the first position S1, which can achieve the effect of blocking the path of the first contact support 130. This locking groove 134 design will make the setting of the interlocking assembly 300 simpler.

[0109] To facilitate the sliding of the first contact support 130, a first guide 400 is provided on the first housing 110. The first contact support 130 cooperates with the first guide 400, and the first guide 400 guides the sliding of the first contact support 130. This guiding function involves a concave-convex fit between the first contact support 130 and the first guide 400, and the direction of this fit is consistent with the direction of movement of the first contact support 130.

[0110] In this embodiment, the first guide member 400 is provided with a guide groove 410, and the first contact support 130 is provided with a guide rib 135, which forms a guiding fit with the guide groove 410. Of course, in addition to this method, the configurations can also be interchanged.

[0111] There are many ways to set the first guide member 400, such as integrally forming it with the first housing 110, or it being a separate component fixed to the first housing 110 by means of screws, plugs, or fasteners. In this embodiment, it is set to the first housing 110 by plugging, with a post on the first guide member 400 and a slot on the first housing 110, through which the post and the slot cooperate.

[0112] The first guide member 400 can also be equipped with a first position switch 420, a signal interface 430, etc. This allows the first position switch 420 and the signal interface 430 to be fixed on the first guide member 400. This structure enables modular installation and is very convenient for design, production, and assembly.

[0113] The interface portion of the signal interface 430 is exposed from the first housing 110. Such a signal interface 430 has many functions. It can be an interface for connecting the host computer to the first position switch 420 to identify on / off signals; it can also be an interface for the host computer to provide signals to the first electromagnetic system 120.

[0114] In this embodiment, the first position switch 420 is a micro switch, which is arranged within the movement trajectory of the first contact support 130, that is, associated with the first contact support 130. This association occurs because the position change of the first contact support 130 alters the trigger state of the micro switch. When the first switch module 100 is turned on, the first position switch 420 and the first contact support 130 exhibit one state; after the first switch module 100 is turned off, the first position switch 420 and the first contact support 130 exhibit another state. These two states are relative concepts, such as normally open and closed, or normally closed and open / closed. Since there are many specific choices for micro switches, the configuration can be set according to the actual situation.

[0115] Of course, in addition to being triggered by the first contact 130, it can also be triggered by the first electromagnetic system 120 (first armature 122), which can also achieve the same result.

[0116] Of course, in addition to microswitches, position switches can also include Hall effect sensors, photosensitive switches, limit switches, infrared sensor switches, etc. These switches also have two states: triggered state and untriggered state, which correspond to one state and the other state mentioned above, and thus can also achieve position detection.

[0117] Similarly, a second position switch 520 is also located inside the second switch module 200. The second position switch 520 is used to monitor the state of the second switch module 200. The method here is basically the same as that of the first position switch 420 in the first switch module 100, except that the setting position is located inside the second housing 210, which will not be described in detail here.

[0118] The first housing 110 and the second housing 210 are fixed. There are many ways to fix them, such as the snap-fit ​​fixation used in this embodiment, that is, the first housing 110 is located above the second housing 210 and the two are snapped together. Of course, the fixation here means that the two can form a stable space together, and there are many ways to achieve this, such as integral molding, screw fastening, ultrasonic welding, etc.

[0119] For this contactor module, regardless of the implementation, each set of first stationary contact components 142 includes a first stationary contact 142a, which is disposed on a first stationary contact 1420. For ease of distinction, this first stationary contact 1420 is also called the first stationary contact I 14201. The first stationary contacts I 14201 of the three sets of first stationary contact components 142 correspond one-to-one with the three second stationary contacts I 2421 and are electrically connected. In this embodiment, the second stationary contacts I 2421 and the first stationary contacts I 14201 are both integral rigid busbar structures, which are in contact with each other and connected by screws. This structure allows them to share a single terminal. Of course, in addition to the integral rigid busbar structure, composite components can also be used, such as a combination of rigid busbar and flexible connection, or two or more independent rigid busbars. Of course, in addition to being connected together and sharing a single terminal, the second stationary contact I2421 and the first stationary contact I14201 can also be separated and each has its own corresponding terminal.

[0120] There are many applications for this type of contactor module. For example, the contactor module can be used as a switching device as a star-delta contactor. Another example is that the contactor module, as a switching device, can be combined with another contactor to form a star-delta starter switch. Yet another example is that the contactor module can be combined with a set of switching modules to form an integrated star-delta starter switch.

[0121] Taking an integrated star-delta starter switch as an example, such as Figure 20-21 As shown, in addition to the structure described above, it also includes a third switch module 600.

[0122] The third switch module 600 is essentially the main contactor, and it includes a third housing 610, a third electromagnetic system 620, a third contact support 630, a third contact assembly 640, and a third reset element. The third electromagnetic system 620, the third contact support 630, the third contact assembly 640, and the third reset element are arranged in the third housing 610.

[0123] Here, the overall working principle of the third switch module 600 is similar to that of a regular contactor, so we will only briefly describe its working principle and will not go into detail about its structure.

[0124] The third contact assembly 640 includes three third moving contacts and three sets of third stationary contact components. Each third moving contact corresponds to one set of third stationary contact components, and each moving contact and each set of stationary contact components corresponds to one of the three phase lines. Each set of stationary contact components has two third stationary contacts, namely third stationary contact I and third stationary contact II 6422, which together with the corresponding moving contact form a double-break structure.

[0125] The third contact support 630 is configured to slide longitudinally, or in other words, to slide along a direction parallel to the height direction H (or simply the height direction H). The third moving contact is mounted on the third contact support 630 and slides along with the third contact support 630 to achieve contact and separation with the third stationary contact component.

[0126] The third electromagnetic system 620 includes a third armature, a third coil assembly, a third magnetic yoke, etc., which will not be described in detail here. The third contact support 630 is fixed on the third armature. When the third coil assembly is energized, the third magnetic yoke attracts the third armature to move, so as to realize the contact between the third moving contact and the third stationary contact component, and complete the connection of the third switch module 600.

[0127] The third reset element uses a compression spring design; of course, tension springs, torsion springs, etc., can also be used. The installation method of the third reset element is similar to that of the first reset element 150, and will not be repeated here. As long as the third reset element is directly or indirectly connected to the third contact support 630, so that after the third electromagnetic system 620 stops working, the third reset element can drive the third contact support 630 back to its original position, thus disconnecting the third switch module 600, it is acceptable.

[0128] The three sets of third stationary contact components correspond one-to-one with the three sets of second stationary contact components 242, and a portion of each set of third stationary contact components is always electrically connected to a portion of each set of second stationary contact components 242. In this case, the third stationary contact II 6422 and the second stationary contact II 2422 are in a one-to-one correspondence and are connected together via a jumper block. Of course, in addition to jumper blocks, a flexible connection can also be used, or the third stationary contact II 6422 and the second stationary contact II 2422 can be directly integrally formed components.

[0129] With this structure, users can connect the star-delta switch to the motor windings and the three-phase power supply to form a star-delta starting circuit. Specific wiring methods have been described in the applicant's previous patent publications and will not be repeated here. Specifically, when both the first switch module 100 and the third switch module 600 are turned on, a star connection is formed. When both the second switch module 200 and the third switch module 600 are turned on, a delta connection is formed.

[0130] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

Claims

1. A contactor module, comprising a second switch module; the second switch module comprising, a second contact assembly comprising three second moving contacts and three sets of second stationary contact members, each second moving contact corresponding to a set of second stationary contact members; a second contact support in sliding arrangement, the second moving contacts being arranged on the second contact support to slide with the second contact support; a second electromagnetic system connected to the second contact support, when the second electromagnetic system is in operation, the second electromagnetic system drives the second contact support to slide, so that the second moving contacts contact the second stationary contact members; a second reset member directly or indirectly connected to the second contact support, after the second electromagnetic system stops operation, the second reset member drives the second contact support to return, so that the second moving contacts are separated from the second stationary contact members; characterized in that the contactor module further comprises a first switch module, the first switch module comprising, a first contact assembly comprising a first moving contact member and three sets of first stationary contact members, the first moving contact member and the first stationary contact members together form a star connection when the first moving contact member contacts the first stationary contact members; a first contact support in sliding arrangement, the first moving contact member being arranged on the first contact support to slide with the first contact support; a first electromagnetic system connected to the first contact support, when the first electromagnetic system is in operation, the first electromagnetic system drives the first contact support to slide, so that the first moving contact member contacts the first stationary contact members, and the first switch module is turned on; a first reset member directly or indirectly connected to the first contact support, after the first electromagnetic system stops operation, the first reset member drives the first contact support to return, so that the first switch module is turned off; 2. A contactor module according to claim 1, characterized in that: in the height direction, the first switch module is arranged above the second switch module, the sliding directions of the first contact support and the second contact support are in perpendicular relationship, and the sliding direction of one of them is parallel to the height direction. the first moving contact member comprises three first moving contact points, the three first moving contact points are shorted to each other, each set of first stationary contact members comprises a first stationary contact point, the first moving contact points and the first stationary contact points one-to-one correspond, so that the first moving contact member and the first stationary contact members together form a star connection when the first moving contact member contacts the first stationary contact members; or, the first moving contact member comprises two first moving contact points, each set of first stationary contact members comprises a first stationary contact point, the two first moving contact points one-to-one correspond to the first stationary contact points of two sets of first stationary contact members, and the first stationary contact point of the other set of first stationary contact members is shorted to the two first moving contact points, so that the first moving contact member and the first stationary contact members together form a star connection when the first moving contact member contacts the first stationary contact members; or, the first moving contact member comprises two first moving contact points which are shorted to each other, each set of first stationary contact members comprises a first stationary contact point, the two first moving contact points one-to-one correspond to the first stationary contact points of two sets of first stationary contact members, and the first stationary contact point of the other set of first stationary contact members is shorted to the first moving contact point, so that the first moving contact member and the first stationary contact members together form a star connection when the first moving contact member contacts the first stationary contact members. Or, the first moving contact member comprises three first moving contact heads, each first stationary contact member comprises a first stationary contact point I corresponding to one of the first moving contact heads and a first stationary contact point II, the first stationary contact points I of the three groups of first stationary contact members are short-circuited or the first stationary contact points II of the three groups of first stationary contact members are short-circuited, so that the star connection is formed when the first moving contact member and the first stationary contact member are in contact.

3. The contactor module of claim 1, wherein: The interlocking assembly is movably arranged and connected between the first contact support and the second contact support, and when the second moving contact head is in contact with the second stationary contact member, the interlocking assembly blocks the path of the first contact support to prevent the first switch module from being turned on, and after the second moving contact head is separated from the second stationary contact member, the interlocking assembly is driven by the second contact support to remove the block of the first contact support.

4. The contactor module according to claim 3, characterized in that: the interlocking assembly comprises an interlocking piece and an interlocking spring, the interlocking spring abuts against the interlocking piece, the interlocking piece is rotatably arranged or linearly slidably arranged and comprises a first position and a second position, when the second moving contact head is in contact with the second stationary contact member, the interlocking piece is kept at the first position under the action of the interlocking spring to block the first contact support, and after the second moving contact head is separated from the second stationary contact member, the interlocking piece is driven by the second contact support to the second position to remove the block of the first contact support; or, the interlocking assembly comprises an interlocking piece, the interlocking piece is rotatably arranged or linearly slidably arranged and comprises a first position and a second position, the interlocking piece is connected with the second contact support, after the second moving contact head is separated from the second stationary contact member, the interlocking piece is driven by the second contact support to the second position to remove the block of the first contact support, and when the second moving contact head is in contact with the second stationary contact member, the interlocking piece is driven by the second contact support to the first position to block the first contact support.

5. A contactor module according to claim 3, wherein: the first contact support is provided with a locking groove, when the interlocking assembly is in the locking groove, the interlocking assembly blocks the path of the first contact support, and when the interlocking assembly moves out of the locking groove, the block of the first contact support is removed; and / or, in the height direction, the interlocking assembly is arranged between the first contact support and the second contact support.

6. The contactor module of claim 1, wherein: the first contact support comprises a first mounting portion and a second mounting portion, the first moving contact member is arranged on the first mounting portion, the first electromagnetic system comprises a first armature, a first coil assembly and a first yoke, the first armature is fixed with the second mounting portion, the second mounting portion is connected with the first mounting portion to jointly form a receiving groove, and the first coil assembly and the first yoke are arranged in the receiving groove; or, the first contact support comprises a first mounting portion and a second mounting portion, the first moving contact member is arranged on the first mounting portion, the first electromagnetic system comprises a first armature, a first coil assembly and a first yoke, the first armature is fixed with the second mounting portion, the first coil assembly and the first yoke are arranged on one side of the first contact support and close to the second mounting portion.

7. The contactor module of claim 1, wherein: The first switch module further comprises a first housing, the first contact assembly, the first contact support and the first electromagnetic system are arranged in the first housing; the first housing is provided with a first guide part, the first contact support is matched with the first guide part, and the first guide part plays a guiding role in sliding of the first contact support.

8. A contactor module according to claim 7, wherein: The first guide part is screw-fastened or snap-fastened or plug-in matched with the first housing; And / or, a first position switch is fixed on the first guide part, the first position switch is associated with the first contact support or the first electromagnetic system; when the first switch module is connected, the first position switch presents a state with the first contact support or the first electromagnetic system; after the first switch module is disconnected, the first position switch presents another state with the first contact support or the first electromagnetic system; And / or, a signal interface is fixed on the first guide part, and an interface part of the signal interface is exposed by the first housing.

9. The contactor module according to claim 1, wherein: The sliding direction of the second contact support is parallel to the height direction, and the sliding direction of the first contact support is parallel to the width direction or the length direction; And / or, the first switch module further comprises a first housing, and the second switch module further comprises a second housing, the first housing is fixed above the second housing; And / or, the first position switch is associated with the first contact support or the first electromagnetic system; when the first switch module is connected, the first position switch presents a state with the first contact support or the first electromagnetic system; after the first switch module is disconnected, the first position switch presents another state with the first contact support or the first electromagnetic system; And / or, the second position switch is associated with the second contact support or the second electromagnetic system; when the second movable contact and the second static contact member are in contact, the second position switch presents a state with the second contact support or the second electromagnetic system; after the second movable contact and the second static contact member are separated, the second position switch presents another state with the second contact support or the second electromagnetic system.

10. A star-delta start switch characterized by: The contactor module comprises a third switch module and a contactor module according to any one of claims 1-9; The third switch module comprises, The third contact assembly comprises three third movable contacts and three groups of third static contact members, each third movable contact corresponds to a group of third static contact members; The third contact support is arranged in sliding mode, and the third movable contact is arranged on the third contact support and slides with the third contact support; The third electromagnetic system is connected with the third contact support, and when the third electromagnetic system works, the third contact support is driven to slide, so that the third movable contact is in contact with the third static contact member; The third reset member is directly or indirectly connected with the third contact support, and after the third electromagnetic system stops working, the third contact support is driven to reset, so that the third movable contact is separated from the third static contact member; The three groups of third static contact members correspond to the three groups of second static contact members one by one, and part of the three groups of third static contact members and part of the three groups of second static contact members are always in electrical connection.

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