Reversible contactor

Abstract

A reversible contactor comprises at least two contactors, the at least two contactors are interlocked through an interlocking module, the two contactors are respectively a first contactor and a second contactor, the second contactor is provided with an embedded interlocking module, and when one contactor is switched on, the interlocking module supports and locks a contact of the other contactor; the contactor further comprises a fixing piece, the fixing piece comprises a first fixing part and a second fixing part, the end, connected with the right side plate, of the end plate of the first contactor is provided with a first fixing hole used for inserting the first fixing part, and the end, connected with the left side plate, of the end plate of the second contactor is provided with a second fixing hole used for inserting the second fixing part. The first fixing part and the second fixing part of the fixing piece are respectively inserted into the first fixing hole of the first contactor and the second fixing hole of the second contactor, the right side plate of the first contactor and the left side plate of the second contactor are limited between the first fixing part and the second fixing part and are in close contact, and a gap between the two contactors is reduced.

Description

Technical Field

[0001] The utility model relates to the field of low-voltage electrical appliances, and particularly relates to a reversible contactor. Background Art

[0002] The development trend of existing contactors is towards miniaturization of volume, compactness of structure, internalization of accessories, convenience of wiring, and diversification of functions.

[0003] However, if two existing contactors need to achieve interlocking, not only an externally connected extended interlocking module is required, but also the two contactors need to be fixed together through fixing parts, resulting in a problem of too large a gap between the two contactors. If the size is too large after the two contactors are interlocked, it will bring inconvenience to the customer's use. Summary of the Invention

[0004] The purpose of the utility model is to overcome at least one defect of the prior art and provide a contactor.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A reversible contactor includes at least two contactors, and the at least two contactors are interlocked through an interlocking module.

[0007] The two contactors are respectively a first contactor and a second contactor. The outer shells of the first contactor and the second contactor both include a left side plate and a right side plate arranged oppositely, and an end plate connected between at least one end of the left side plate and the right side plate. An embedded interlocking module is arranged inside the outer shell of the second contactor near the left side plate. The interlocking module includes an interlocking part, and the interlocking part is provided with a first locking part and a second locking part. The left side plate of the second contactor is provided with a first interlocking hole for passing through the interlocking module, and the right side plate of the first contactor is provided with a second interlocking hole.

[0008] The second locking part cooperates with the contact support of the second contactor, and the first locking part passes through the first interlocking hole and the second interlocking hole to cooperate with the contact support of the first contactor, so that when one of the two contactors is switched on, the contact support of the other contactor is locked through the interlocking part.

[0009] It further includes a fixing part. The fixing part includes a first fixing part and a second fixing part arranged oppositely, and a supporting part connected between the first fixing part and the second fixing part. One end of the end plate of the first contactor connected to the right side plate is provided with a first fixing hole for inserting the first fixing part, and one end of the end plate of the second contactor connected to the left side plate is provided with a second fixing hole for inserting the second fixing part.

[0010] The right side plate of the first contactor is in close contact with the left side plate of the second contactor. The first fixing part and the second fixing part of the fixing member are respectively inserted into the first fixing hole of the first contactor and the second fixing hole of the second contactor, and the right side plate of the first contactor and the left side plate of the second contactor are limited between the first fixing part and the second fixing part.

[0011] Preferably, each of the two contactors includes a first functional module, a second functional module, and a third functional module. The second functional module is disposed between the first functional module and the third functional module. The first functional module is provided with an electromagnetic system, and the electromagnetic system includes a moving iron core and a coil for driving the movement of the moving iron core. The second functional module includes a contact system and a contact terminal block. The contact system includes a static contact and a moving contact. The moving contact is installed on a contact support driven by the electromagnetic system. The moving iron core of the electromagnetic system is connected to the contact support. The static contact is connected to the working circuit through the contact terminal block. The third functional module is provided with a coil terminal block. The second functional module further includes a coil connection structure for electrically connecting the coil terminal block and the coil. The coil is connected to the coil terminal block through the coil connection structure. The interlock module is disposed in the third functional module of the second contactor.

[0012] Preferably, the outer shells of the first contactor and the second contactor each include two end plates, which are respectively a front end plate and a rear end plate. The two end plates are respectively connected between the two ends of their respective left side plate and right side plate. A top side plate is provided at one end of the left side plate, right side plate, and two end plates away from the second functional module. The top side plate, left side plate, right side plate, and two end plates form a face cover of the third functional module.

[0013] The base of the second functional module includes a second left side plate and a second right side plate arranged oppositely. The base of the first functional module includes a third left side plate and a third right side plate arranged oppositely. The left side plate, second left side plate, and third left side plate are flush. The right side plate, second right side plate, and third right side plate are flush.

[0014] The base of the first functional module further includes a bottom side plate, which is located on the side of the third left side plate and the third right side plate away from the second functional module. The bottom side plate is connected between the third left side plate and the third right side plate. Third fixing holes and fourth fixing holes are respectively provided at the two ends of the bottom side plate connected to the third left side plate and the third right side plate.

[0015] The reversible contactor further includes a second fixing member, which includes a third fixing portion and a fourth fixing portion, and a second supporting portion connected between the third fixing portion and the fourth fixing portion. When the third right side plate of the first contactor is in close contact with the third left side plate of the second contactor, the third fixing portion and the fourth fixing portion of the second fixing member can be respectively inserted into the fourth fixing hole of the first contactor and the third fixing hole of the first contactor, so as to limit the third left side plate and the third right side plate between the third fixing portion and the fourth fixing portion.

[0016] Preferably, the outer casings of the first contactor and the second contactor are the same. The left side plates of the first contactor and the second contactor are both provided with first interlock holes, the right side plates of the first contactor and the second contactor are both provided with second interlock holes, and the end plates of the first contactor and the second contactor are respectively provided with first fixing holes and second fixing holes at both ends connected to their respective left side plates and right side plates.

[0017] Preferably, the outer casings of the first contactor and the second contactor each include two of the end plates, which are respectively a front end plate and a rear end plate. The two end plates are respectively connected between both ends of their respective left side plates and right side plates. The first contactor and the second contactor also include two fixing members respectively arranged corresponding to the two end plates. The two end plates are both provided with first fixing holes and second fixing holes. The first fixing portions and the second fixing portions of the two fixing members respectively pass through the corresponding end plates, and limit the right side plate of the first contactor and the left side plate of the second contactor between the first fixing portion and the second fixing portion of the two fixing members.

[0018] Preferably, detachable side covers are respectively arranged in the first interlock hole and the second interlock hole.

[0019] Preferably, the left side plate and the right side plate are respectively provided with a left end face and a right end face inserted into the first fixing hole and the second fixing hole. The left end face and the right end face are respectively provided with semi-limiting grooves. The semi-limiting groove on the left end face and the semi-limiting groove on the right end face of the adjacent contactor form a limiting groove.

[0020] Preferably, the mutually remote sides of the first fixing portion and the second fixing portion are respectively provided with protruding claw catches, and the claw catches are in limiting cooperation with the inner wall of the end plate.

[0021] Preferably, fixing blocks are respectively arranged in the third fixing hole and the fourth fixing hole. One sides of the fixing blocks in the third fixing hole and the fourth fixing hole are respectively connected to the third left side plate and the third right side plate. The remaining three sides of the fixing blocks respectively form U-shaped holes with the hole walls of the third fixing hole and the fourth fixing hole. The U-shaped holes include semi-supporting grooves and transverse fixing holes oppositely arranged on two sides of the fixing block, and longitudinal fixing holes connecting the semi-supporting grooves and the transverse fixing holes. When the third right side plate of the first contactor contacts the third left side plate of the second contactor, the semi-supporting grooves of the fourth fixing hole and the third fixing hole fix the same side of the corresponding fixing block and communicate to form a supporting groove for accommodating the second fixing member of the second supporting portion. The transverse fixing holes of the fourth fixing hole and the third fixing hole are located on the other side of the fixing block and are arranged at intervals. The longitudinal fixing holes of the fourth fixing hole and the third fixing hole are respectively arranged on the side surfaces of the corresponding fixing blocks away from the other fixing block.

[0022] Preferably, both the third fixing portion and the fourth fixing portion include a longitudinal fixing portion and a transverse fixing portion. The longitudinal fixing portion is connected between the transverse fixing portion and the second supporting portion. The longitudinal fixing portion and the transverse fixing portion of the third fixing portion are respectively used for being inserted into the longitudinal fixing hole and the transverse fixing hole of the fourth fixing hole of the first contactor. The longitudinal fixing portion and the transverse fixing portion of the fourth fixing portion are respectively used for being inserted into the longitudinal fixing hole and the transverse fixing hole of the third fixing hole of the second contactor.

[0023] Preferably, a clamping groove is arranged on the side surface of the fixing block close to the interior of the housing. The depth of the clamping groove is greater than the depth of the supporting groove. The longitudinal fixing portions of the third fixing portion and the fourth fixing portion are respectively clamped into the clamping groove, so that the plane where the second fixing member is located is arranged at an oblique angle with the bottom side plate to prevent the second fixing member from falling off.

[0024] Preferably, the longitudinal fixing holes of the fourth fixing hole and the longitudinal fixing holes of the third fixing hole are respectively provided with fixing bosses protruding towards the corresponding fixing blocks. The fixing bosses are provided with fixing surfaces in a curved surface shape. The fixing surfaces are used for limiting the longitudinal fixing portions of the second fixing member.

[0025] Preferably, the contact support includes a sliding portion, and an auxiliary support portion and an interlocking rod respectively arranged on the sliding portion. The interlocking module and the interlocking rod are oppositely arranged on two sides of the auxiliary support portion and are respectively arranged at intervals with the auxiliary support portion. The interlocking rod and the side of the auxiliary support portion away from the interlocking rod are respectively provided with an external interlocking groove and an internal interlocking groove. The first locking portion and the second locking portion are respectively inserted into the external interlocking groove of the first contactor and the internal interlocking groove of the second contactor to lock the corresponding contactors. When the contact support of any one of the two contactors moves to close the switch, one of the corresponding first locking portion and the second locking portion can drive the interlocking member to act, so that the other of the first locking portion and the second locking portion locks the other contactor to prevent the two contactors from closing the switch simultaneously.

[0026] Preferably, the interlocking module includes a bracket and an interlocking member rotatably arranged on the bracket. The bracket is fixedly arranged inside the housing of the contactor. The interlocking member includes a pivoting part rotatably connected to the bracket, and a first locking part and a second locking part oppositely arranged on both sides of the pivoting part.

[0027] Preferably, a rotating hole is provided on the bracket. An opening communicating with the rotating hole is provided on one side of the rotating hole facing the first interlocking hole, so that the interlocking member installs the pivoting part onto the rotating hole of the bracket through the opening via the first interlocking hole. On the side of the interlocking member facing the first interlocking hole, a first limiting part is further protruded, which is used for limiting with the adjacent contactor to prevent the interlocking member from falling off.

[0028] Preferably, the interlocking member is further provided with a second limiting part, and the first limiting part and the second limiting part are respectively arranged on both sides of the pivoting part.

[0029] Preferably, the interlocking module includes a mounting member and an interlocking member linearly and slidably arranged inside the mounting member. The mounting member is fixedly arranged inside the second contactor. A sliding groove for accommodating the interlocking member is provided inside the mounting member. The interlocking member can slide along the direction of the sliding groove, and two locking parts are respectively arranged on both sides of the interlocking member along the sliding direction of the sliding groove, and the two locking parts respectively serve as the first locking part and the second locking part.

[0030] Preferably, the longitudinal section of the interlocking member is diamond-shaped, and the longitudinal sections of the two locking parts are respectively triangular, and locking surfaces are respectively arranged on both sides opposite to the locking parts.

[0031] Preferably, the longitudinal section of the sliding groove is cross-shaped. Guide grooves are respectively recessed in opposite two side walls of the sliding groove in mutually away directions. Guide parts are respectively arranged on opposite two sides of the interlocking member, and the guide parts on both sides of the interlocking member are respectively used for inserting into the guide grooves on both sides for sliding fit.

[0032] Preferably, the mounting member is inserted into the housing from the first interlocking hole. Mounting plates are respectively arranged on opposite two sides of the mounting member, and the two mounting plates are arranged in parallel. Two fixing grooves corresponding to the two mounting plates are provided in the first interlocking hole. The two mounting plates are respectively installed into the two fixing grooves to be limited and fixed with the housing of the first contactor.

[0033] Preferably, the third functional module is provided with two coil terminal blocks, and the two coil terminal blocks are respectively directly above the two wiring positions of the coil. The second functional module further includes a coil connection structure for electrically connecting the coil terminal blocks and the coil. The coil is connected to the coil terminal blocks through the coil connection structure. The second functional module includes a base and a cover sleeved outside the base. The contact system is arranged inside the base, and the coil connection structure is located between the outside of the base and the inside of the cover.

[0034] In the reversible contactor of this embodiment, an interlock module is embedded near the left side plate in the second contactor, and a first fixing hole and a second fixing hole are respectively provided at one end where the end plate of the first contactor is connected to the right side plate and at one end where the end plate of the second contactor is connected to the left side plate. The first fixing part and the second fixing part of the fixing member can respectively pass through the first fixing hole and the second fixing hole, and the left side plate of the first contactor and the right side plate of the second contactor are limited between the first fixing part and the second fixing part, so that the right side plate of the first contactor and the left side plate of the second contactor are kept in close contact without gaps. Since the gap between the first contactor and the second contactor is reduced, not only can the space occupied when the first contactor and the second contactor are used in combination be reduced, but also the first fixing part and the second fixing part of the fixing member can be directly inserted into the first fixing hole and the second fixing hole respectively to fix the two contactors, which also has the characteristic of convenient operation. In addition, by fixing the first functional modules of the two contactors with the embedded second fixing member and fixing the third functional modules of the two contactors with the embedded fixing member, the two contactors can be reliably fixed together. Description of the Drawings

[0035] Figure 1 is a schematic structural diagram of the contactor of the present utility model;

[0036] Figure 2 is a schematic structural diagram of the contactor of the present utility model after hiding the face cover;

[0037] Figure 3 is an assembly schematic diagram of the cover of the contactor of the present utility model;

[0038] Figure 4 is a matching schematic diagram of two contactors of the present utility model;

[0039] Figure 5 is the present utility model Figure 4 partial enlarged view;

[0040] Figure 6 is a schematic structural diagram of the fixing member of the present utility model;

[0041] Figure 7 is a matching schematic diagram of the first fixing hole and the second fixing hole of the present utility model;

[0042] Figure 8 is a matching schematic diagram of the third fixing hole and the fourth fixing hole of the present utility model;

[0043] Figure 9 is a schematic structural diagram of the second fixing member of the present utility model;

[0044] Figure 10 is a schematic structural diagram of the contact support of the present utility model;

[0045] Figure 11 It is an assembly schematic diagram in the first embodiment of the interlock module;

[0046] Figure 12 It is a structural schematic diagram of the interlock part in the first embodiment of the interlock module;

[0047] Figure 13 It is an assembly schematic diagram in the second embodiment of the interlock module;

[0048] Figure 14 It is a matching schematic diagram of the interlock part and the mounting part in the second embodiment of the interlock module;

[0049] Figure 15 It is a structural schematic diagram of the interlock part in the second embodiment of the interlock module;

[0050] Figure 16 It is a structural schematic diagram of the mounting part in the second embodiment of the interlock module;

[0051] In the figure, there are a first functional module 1; a second functional module 2; a third functional module 3; a coil terminal 31; a face cover 32; an interlock module 33; an auxiliary contact module 34; a surge protection module 35; a base 21; a cover 22; a contact terminal 23; a static contact 24; a contact support 25; a coil connection structure 26; a first conductive member 261; a second conductive member 262; a coil wiring groove 210; a clamping spring piece 263; a contact portion 264; a connecting portion 265; a coil connection piece 311; a coil pressing piece 312; a coil connection screw 313; an auxiliary support portion 251; an auxiliary static contact 341; an auxiliary terminal 342; an auxiliary moving contact 343; an auxiliary support groove 252; an auxiliary spring platform 253; an auxiliary limiting surface 254; a sealing plug 321; an interlock member 331; a first contactor A; a second contactor B; a left side plate 322; a right side plate 323; an end plate 324; a first interlock hole 325; a second interlock hole 326; a fixing member 36; a first fixing portion 361; a second fixing portion 362; a support portion 363; a first fixing hole 3610; a second fixing hole 3620; a side cover 37; a second left side plate 211; a third left side plate 11; a third right side plate 12; a bottom side plate 13; a third fixing hole 131; a fourth fixing hole 132; a second fixing member 38; a third fixing portion 381; a fourth fixing portion 382; a second support portion 383; a left end face 3221; a right end face 3231; a semi-limiting groove 327; a limiting strip 364; a claw 365; a fixing block 133; a semi-supporting groove 134; a horizontal fixing hole 135; a vertical fixing hole 136; a vertical fixing portion 386; a horizontal fixing portion 385; a fixing boss 1361; a sliding portion 255; an interlock rod 256; a pivoting portion 332; a first locking portion 333; a second locking portion 334; a first limiting portion 335; a second limiting portion 336; a mounting member 4; a sliding groove 41; a locking portion 337; a locking surface 3371; a guiding groove 42; a guiding portion 3372; a mounting plate 43. Detailed implementation mode

[0052] The following embodiments given in conjunction with the drawings further illustrate the specific implementation modes of the contactor of the present invention. The contactor of the present invention is not limited to the descriptions of the following embodiments.

[0053] As Figures 1-3 shown, the contactor of this embodiment is divided into a hierarchical structure, and its main structure is divided into upper, middle and lower three-layer structures. The three-layer structures are respectively a first functional module 1, a second functional module 2 and a third functional module 3 sequentially arranged in the housing. The second functional module 2 is located between the first functional module 1 and the third functional module 3;

[0054] The first functional module 1 includes a base and a coil (not shown in the figure) disposed in the base. The electromagnetic system includes a moving iron core and a coil for driving the moving iron core to move. Outside the base, there is an installation structure (not shown in the figure), and the installation structure is used to install the contactor in the working position. The installation structure can include rail installation and screw installation holes;

[0055] The third functional module 3 includes an auxiliary module and two coil terminals 31 for connecting to the control circuit, and a face cover 32 covering the auxiliary module and the two coil terminals 31. The auxiliary module includes one or any combination of an interlock module 33, an auxiliary contact module 34, and a surge protection module 35;

[0056] The second functional module 2 includes a base 21 mounted on the first functional module 1 and a cover 22 sleeved outside the base 21. A contact system, an arc extinguishing system (not shown in the figure), and contact terminals 23 electrically connected to the contact system are provided in the base 21. The contact system includes at least one moving contact, and two static contacts 24 respectively disposed at both ends of the moving contact. The moving contact is mounted on a contact support 25 driven by the electromagnetic system. The contact support 25 drives the moving contact to contact and separate from the corresponding two static contacts 24 under the drive of the electromagnetic system, so that the two static contacts 24 are conducted or disconnected through the moving contact. One end of the static contact 24 away from the corresponding moving contact extends outside the base 21 and is connected to the contact terminal 23. The contact support 25 is slidably disposed in the second functional module 2. The moving iron core of the electromagnetic system is connected to the contact support 25 and drives the contact support 25 to move linearly up and down. The moving iron core is located at the connection between the third functional module 3 and the second functional module 2 and can be located within the second functional module 2 or the third functional module 3; the contact support 25 moves linearly, and its bottom can move to the connection between the third functional module 3 and the second functional module 2, or move into the first functional module 1, and its top can move into the third functional module 3. The base of the first functional module 1, the base 21 of the second functional module 2, the cover 22 of the second functional module 2, and the face cover 32 of the third functional module 3 form the outer shell of the contactor.

[0057] As Figure 3 shown, an improvement point of this embodiment is that the second functional module 2 includes a coil connection structure 26 for electrically connecting the coil terminals 31 of the third functional module 3 and the coil. Both ends of the coil are respectively connected to the two coil terminals 31 through the coil connection structure 26 to access the control circuit. The control circuit drives the moving iron core to act by controlling the coil, so that the iron core drives the moving contact to contact and separate from the static contact 24, so as to respectively conduct and disconnect the working circuit connected to the contact terminal 23.

[0058] For the contactor of this embodiment, by providing a coil connection structure 26 in the second functional module 2 for electrically connecting the coil terminal 31 and the coil, and integrating the coil terminal 31 into the third functional module 3 at the top, not only is the layout more reasonable, but also the wiring and operation are more convenient.

[0059] In addition, by providing an auxiliary module in the third functional module 3, the coil terminal 31 and the auxiliary module can be integrated together, making the wiring and operation of the third functional module 3 at the top more convenient, and providing better recognition for customers during use.

[0060] Furthermore, the two coil terminals 31 are respectively located directly above the two wiring positions of the coil. By arranging the coil terminals 31 in the third functional module 3, the coil terminals 31 can be located directly above the wiring positions of the coil, facilitating wire routing.

[0061] Further, the coil connection structure 26 is located between the outer side of the base 21 and the inner side of the cover 22. There is no need to additionally provide an insulating structure for insulating the coil connection structure 26. This can not only insulate the coil connection structure 26 from the contact system inside the base 21, but also enable the cover 22 buckled on the base 21 to cover the second conductive member, serving as insulation for the coil connection structure 26. Of course, the coil connection structure 26 can also pass through the inside of the base 21, but an insulating structure needs to be added outside the coil connection structure 26. Preferably, the side surface of the base 21 is provided with a coil wire routing groove 210 for accommodating the coil connection structure 26.

[0062] Further, the coil connection structure 26 includes two first conductive members 261 respectively connected to both ends of the coil, and two second conductive members 262 respectively connected to the two coil terminals 31. The two first conductive members 261 and the two second conductive members 262 are respectively connected. Specifically, the first conductive member 261 includes a clamping elastic piece 263. The clamping elastic piece 263 includes an elastic contact portion 264 and a connection portion 265 located on the side of the contact portion 264. The connection portion 265 is used to connect the coil, and the second conductive member 262 is inserted and connected with the clamping elastic piece 263, facilitating assembly;

[0063] The coil terminal 31 includes a coil connection piece 311, a coil pressing piece 312, and a coil connection screw 313. The coil connection screw 313 passes through the coil pressing piece 312 and is connected to the coil connection piece 311. The coil connection screw 313 is used to drive the coil pressing piece 312 to press the wire tightly on the coil connection piece 311. The coil connection piece 311 is integrally formed with the corresponding second conductive member 262, which can reduce the assembly difficulty and eliminate the process of connecting the second conductive member 262 to the coil terminal 31. Obviously, as other embodiments, the coil connection structure 26 can also adopt a non-plug-in structure, which all fall within the protection scope of the present utility model.

[0064] As Figure 2 shown, the first functional module 1, the second functional module 2, and the third functional module 3 are sequentially arranged along the height direction of the contactor. In the length direction of the contactor, the length of the third functional module 3 is less than the length of the second functional module 2, so that screw holes corresponding to the contact terminals 23 are respectively provided at both ends of the top surface of the second functional module 2 in the length direction of the contactor. The third functional module 3 is provided with an interlock module 33. The interlock module 33 is spaced from the two coil terminals 31. In the width direction of the contactor, the interlock module 33 and the two coil terminals 31 are oppositely arranged on both sides of the third functional module 3. Two auxiliary contact modules 34 are provided between the interlock module 33 and the two coil terminals 31. A surge protection module 35 is provided between the two coil terminals 31.

[0065] For the contactor of this embodiment, on the basis of realizing the modularization of functional areas through the first functional module 1, the second functional module 2, and the third functional module 3, the third functional module 3 is further divided into areas according to the functions of different auxiliary modules, so that a variety of auxiliary modules can be built into the third functional module 3. In addition, the auxiliary contact modules 34 are arranged on the sides of the two coil terminals 31, which is convenient for the installation and connection of the externally connected series resistance module. It can be understood that only one of the auxiliary modules can be provided, or a combination of multiple auxiliary modules can be provided, which all fall within the protection scope of the present utility model.

[0066] Furthermore, as Figure 2 、 10As shown, the contact support 25 is provided with a sliding part 255. An auxiliary support part 251 is provided on the sliding part 255 and inserted into the third functional module 3. The auxiliary contact module 34 includes two auxiliary static contacts 341 arranged at intervals and auxiliary connection terminals 342 respectively arranged on the auxiliary static contacts 341. The auxiliary support part 251 is inserted between the two auxiliary static contacts 341 of the auxiliary contact module 34. An auxiliary moving contact 343 for electrically connecting with the two auxiliary static contacts 341 is provided on the auxiliary support part 251. When the contact support 25 drives the moving contact to contact and separate from the static contact 24, it can simultaneously drive the auxiliary moving contact 343 to move to contact and separate from the auxiliary static contact 341, so as to switch the output state of the auxiliary contact module 34.

[0067] Further, an auxiliary support groove 252 is provided on the auxiliary support part 251. Auxiliary spring platforms 253 (auxiliary contact springs not shown in the figure) for fixing the auxiliary contact springs are respectively provided on two opposite groove walls of the auxiliary support groove 252, and an auxiliary limiting surface 254 for limiting the auxiliary moving contact 343 is provided. The auxiliary contact spring is used to push the middle part of the auxiliary moving contact 343, so that the middle part of the auxiliary moving contact 343 is limited by the auxiliary limiting surface 254. The two ends of the auxiliary moving contact 343 respectively extend to both sides of the auxiliary support part 251. When the auxiliary moving contact 343 contacts the auxiliary static contact 341, the auxiliary contact spring is compressed and pushes the auxiliary moving contact 343, so that the auxiliary moving contact 343 is pressed against the auxiliary static contact 341.

[0068] The contactor of this embodiment has two auxiliary contact modules 34, and the two auxiliary contact modules 34 are respectively normally open contacts and normally closed contacts. Two auxiliary support grooves 252 respectively corresponding to the two auxiliary contact modules 34 are provided on the auxiliary support part 251. Auxiliary moving contacts 343 are respectively provided in the two auxiliary support grooves 252. The two auxiliary support grooves 252 are at different heights, so that the two auxiliary moving contacts 343 are at different heights. One of the auxiliary moving contacts 343 contacts the corresponding auxiliary static contact 341 to form a normally closed contact, and the other auxiliary moving contact 343 separates from the corresponding auxiliary static contact 341 to form a normally open contact. When the auxiliary moving contact 343 of the normally open auxiliary contact contacts the corresponding auxiliary static contact 341, the auxiliary moving contact 343 of the normally closed auxiliary contact separates from the corresponding auxiliary static contact 341.

[0069] This can avoid setting the two types of auxiliary contacts, normally open contacts and normally closed contacts, at different heights, enabling the simultaneous setting of both normally open and normally closed auxiliary contacts in the third functional module 3, effectively reducing the height of the third functional module 3. This not only makes the structure of the auxiliary contacts more compact but also ensures that the height of the third functional module 3 meets the dimensional requirements after combination with the first functional module 1 and the second functional module 2. Of course, it can also be achieved in other ways. For example, setting the two auxiliary contact modules 34 at different heights will increase the height of the third functional module 3, which all fall within the protection scope of the present utility model. In addition, the two auxiliary contact modules 34 can both be normally open contacts or both be normally closed contacts; the contactor can also be provided with one or more auxiliary contact modules 34.

[0070] As Figure 3 shown, the cover 22 is snap-fitted onto the base 21 in the first direction, and the face cover 32 is snap-fitted onto the cover 22 in the second direction, or snap-fitted onto the structure outside the cover 22 that extends from the base 21. The first direction and the second direction are perpendicularly arranged, which is not only convenient for assembly but also enables the face cover 32 to play a role in limiting the cover 22.

[0071] Furthermore, the face cover 32 is of an integral structure or a split structure. The split face cover 32 is provided with a sealing hole corresponding to the surge protection module 35 and a detachable sealing plug 321 for plugging into the sealing hole, which facilitates the installation and removal of the electronic circuit board of the surge protection module 35.

[0072] As Figures 4-7As shown in the figure, another improvement point of this embodiment is that a reversible contactor is further provided, which includes at least two contactors. The at least two contactors are interlocked through an interlocking module 33. The two contactors arranged side by side and closely are respectively a first contactor A and a second contactor B. The outer shells of the first contactor A and the second contactor B both include a left side plate 322 and a right side plate 323 arranged oppositely, and an end plate 324 connected between at least one end of the left side plate 322 and the right side plate 323. An embedded interlocking module 33 is arranged inside the outer shell of the second contactor B near the left side plate 322. The interlocking module 33 includes an interlocking member 331. The interlocking member 331 is provided with a first locking portion 333 and a second locking portion 334. The left side plate 322 of the second contactor B is provided with a first interlocking hole 325 for passing through the interlocking module 33. The first locking portion 333 of the interlocking module 33 can extend from the first interlocking hole 325 to the outside of the outer shell. The right side plate 323 of the first contactor A is provided with a second interlocking hole 326. The second interlocking hole 326 is used to insert the first locking portion 333 of the interlocking module 33 of the second contactor B. The left side plate 322 of the second contactor B and the right side plate 323 of the first contactor A are arranged side by side and closely. The second locking portion 334 cooperates with the contact support 25 of the second contactor B. The first locking portion 333 passes through the first interlocking hole 325 and the second interlocking hole 326 and cooperates with the contact support 25 of the first contactor A. When one of the two contactors is switched on, the contact support 25 of the other contactor is locked through the interlocking member 331, so that the locked contactor cannot be switched on either, preventing the two contactors from being switched on simultaneously and realizing the interlocking of the two contactors;

[0073] It further includes a fixing member 36. The fixing member 36 includes a first fixing portion 361 and a second fixing portion 362 arranged oppositely, and a support portion 363 connected between the first fixing portion 361 and the second fixing portion 362. One end of the end plate 324 of the first contactor A connected to the right side plate 323 is provided with a first fixing hole 3610 for inserting the first fixing portion 361. One end of the end plate 324 of the second contactor B connected to the left side plate 322 is provided with a second fixing hole 3620 for inserting the second fixing portion 362;

[0074] When the right side plate 323 of the first contactor A is in close contact with the left side plate 322 of the second contactor B, the first fixing portion 361 and the second fixing portion 362 of the fixing member 36 are used to be respectively inserted into the first fixing hole 3610 of the first contactor A and the second fixing hole 3620 of the second contactor B, so that the first fixing portion 361 is inserted into the side of the right side plate 323 of the first contactor A away from the second contactor B, and the second fixing portion 362 is inserted into the side of the left side plate 322 of the second contactor B away from the first contactor A, and the right side plate 323 of the first contactor A and the left side plate 322 of the second contactor B are limited between the first fixing portion 361 and the second fixing portion 362.

[0075] The reversible contactor of this embodiment embeds an interlock module 33 at a position close to the left side plate 322 in the second contactor B, and respectively sets a first fixing hole 3610 and a second fixing hole 3620 at one end where the end plate 324 of the first contactor A is connected to the right side plate 323 and at one end where the end plate 324 of the second contactor B is connected to the left side plate 322, so that the first fixing part 361 and the second fixing part 362 of the fixing member 36 can respectively pass through the first fixing hole 3610 and the second fixing hole 3620, and limit the left side plate 322 of the first contactor A and the right side plate 323 of the second contactor B between the first fixing part 361 and the second fixing part 362, making the right side plate 323 of the first contactor A and the left side plate 322 of the second contactor B keep in close contact in a gapless state. Since the gap between the first contactor A and the second contactor B is reduced, not only can the space occupied when the first contactor A and the second contactor B are used in combination be reduced, but also the first fixing part 361 and the second fixing part 362 of the fixing member 36 can be directly inserted into the first fixing hole 3610 and the second fixing hole 3620 respectively to fix the two contactors, and it also has the characteristic of convenient operation.

[0076] Furthermore, the outer shells of the first contactor A and the second contactor B are the same. The left side plates 322 of the first contactor A and the second contactor B are both provided with first interlock holes 325 for passing through the interlock module 33, and the right side plates 323 of the first contactor A and the second contactor B are both provided with second interlock holes 326, that is, both contactors can be used as the first contactor A or the second contactor B, and both contactors can be installed with the interlock module 33. Removable side covers 37 are respectively arranged in the first interlock hole 325 and the second interlock hole 326, and first fixing holes 3610 and second fixing holes 3620 are respectively arranged at both ends where the end plate 324 of the first contactor A and the second contactor B is connected to their respective left side plates 322 and right side plates 323. The interlock module 33 can be not arranged in the second contactor B but embedded in the first contactor A, and the positions of the first contactor A and the second contactor B are swapped. The first contactor A can be interlocked with the second contactor B or other contactors through the interlock module 33. Not only is it more flexible to use, but also only one set of molds is needed for the outer shells of the first contactor A and the second contactor B, and there is no need to separately mold for the first contactor A and the second contactor B. The unnecessary first interlock hole 325 and second interlock hole 326 are blocked by the side cover 37, and the side cover 37 can be removed during use.

[0077] Further, the housings of the first contactor A and the second contactor B each include two of the end plates 324, which are respectively a front end plate 324 and a rear end plate 324. The two end plates 324 are respectively connected between the two ends of their respective left side plates 322 and right side plates 323. There are also two fixing members 36 respectively provided corresponding to the two end plates 324. The two end plates 324 are each provided with a first fixing hole 3610 and a second fixing hole 3620. The first fixing portions 361 and the second fixing portions 362 of the two fixing members 36 are used to respectively pass through the corresponding end plates 324, and limit the right side plate 323 of the first contactor A and the left side plate 322 of the second contactor B between the first fixing portions 361 and the second fixing portions 362 of the two fixing members 36. Of course, the fixing member 36 can also be provided only on one side, and the housings of the two contactors can be fixed in other ways on the other side, such as by a buckle, which all fall within the protection scope of the present utility model.

[0078] Further, the left side plate 322, the right side plate 323 and the two end plates 324 are located on the top side of the second functional module 2. One ends of the left side plate 322, the right side plate 323, the front end plate 324 and the rear end plate 324 away from the second functional module 2 are connected to the top side plate. The top side plate, the left side plate 322, the right side plate 323, the front end plate 324 and the rear end plate 324 form the face cover 32 of the third functional module 3.

[0079] Further, the base 21 of the second functional module 2 includes a second left side plate 211 and a second right side plate which are oppositely arranged. The base of the first functional module 1 includes a third left side plate 11 and a third right side plate 12 which are oppositely arranged. The left side plate 322, the second left side plate 211 and the third left side plate 11 are flush, and the right side plate 323, the second right side plate and the third right side plate 12 are flush.

[0080] As Figures 4-6As shown, the base of the first functional module 1 further includes a bottom side plate 13. The bottom side plate 13 is located on the side of the third left side plate 11 and the third right side plate 12 away from the second functional module 2. The bottom side plate 13 is connected between the third left side plate 11 and the third right side plate 12. At both ends where the bottom side plate 13 is connected to the third left side plate 11 and the third right side plate 12, there are respectively a third fixing hole 131 and a fourth fixing hole 132. It further includes a second fixing member 38. The second fixing member 38 includes a third fixing portion 381 and a fourth fixing portion 382, and a second support portion 383 connected between the third fixing portion 381 and the fourth fixing portion 382. When the third right side plate 12 of the first contactor A contacts the third left side plate 11 of the second contactor B, the third fixing portion 381 and the fourth fixing portion 382 of the second fixing member 38 can be respectively inserted into the fourth fixing hole 132 and the third fixing hole 131 of the first contactor A, so as to limit the third left side plate 11 and the third right side plate 12 between the third fixing portion 381 and the fourth fixing portion 382. Preferably, two second fixing members 38 are installed on the bottom side plate 13. By fixing the first functional modules 1 of the two contactors through the embedded second fixing members 38 and fixing the third functional modules 3 of the two contactors through the embedded fixing members 36, the two contactors can be reliably fixed together.

[0081] As Figures 6-7 Shown is an embodiment of the fixing member 36. The left side plate 322 and the right side plate 323 are respectively provided with a left end face 3221 and a right end face 3231 that are inserted into the first fixing hole 3610 and the second fixing hole 3620. Semi-limiting grooves 327 are respectively provided on the left end face 3221 and the right end face 3231. The semi-limiting groove 327 on the left end face 3221 and the semi-limiting groove 327 on the right end face 3231 of the adjacent contactor form a limiting groove. A limiting strip 364 that is perpendicular to the first fixing portion 361 and the second fixing portion 362 is provided in the middle of the support portion 363. The limiting strip 364 is connected between the first fixing portion 361 and the second fixing portion 362. The limiting strip 364 is used to be inserted into the limiting groove for limiting cooperation. On the mutually remote side faces of the first fixing portion 361 and the second fixing portion 362, there are respectively protruding claw teeth 365. The claw teeth 365 are in limiting cooperation with the inner wall of the end plate 324.

[0082] As Figures 8-9An embodiment of the second fixing member 38 is shown. Fixing blocks 133 are respectively provided in the third fixing hole 131 and the fourth fixing hole 132. One side of the fixing blocks 133 in the third fixing hole 131 and the fourth fixing hole 132 are respectively connected to the third left side plate 11 and the third right side plate 12. The remaining three side surfaces of the fixing blocks 133 respectively form U-shaped holes with the hole walls of the third fixing hole 131 and the fourth fixing hole 132. The U-shaped holes include semi-supporting grooves 134 and transverse fixing holes 135 oppositely arranged on both sides of the fixing blocks 133, and longitudinal fixing holes 136 connecting the semi-supporting grooves 134 and the transverse fixing holes 135. When the third right side plate 12 of the first contactor A contacts the third left side plate 11 of the second contactor B, the semi-supporting grooves 134 of the fourth fixing hole 132 and the semi-supporting grooves 134 of the third fixing hole 131 fix and correspond to the same side of the corresponding fixing block 133, and communicate to form a supporting groove for accommodating the second supporting portion 383 of the second fixing member 38. The transverse fixing holes 135 of the fourth fixing hole 132 and the transverse fixing holes 135 of the third fixing hole 131 are located on the other side of the fixing block 133 and are arranged at intervals. The longitudinal fixing holes 136 of the fourth fixing hole 132 and the longitudinal fixing holes 136 of the third fixing hole 131 are respectively arranged on the side surfaces of the corresponding fixing blocks 133 away from the other fixing block 133.

[0083] Furthermore, the second fixing member 38 has a C-shaped structure. The third fixing portion 381 and the fourth fixing portion 382 of the second fixing member 38 are both L-shaped. The third fixing portion 381 and the fourth fixing portion 382 both include a longitudinal fixing portion 386 and a transverse fixing portion 385. The longitudinal fixing portion 386 is connected between the transverse fixing portion 385 and the second supporting portion 383. The longitudinal fixing portion 386 and the transverse fixing portion 385 of the third fixing portion 381 are respectively used to be inserted into the longitudinal fixing hole 136 and the transverse fixing hole 135 of the fourth fixing hole 132 of the first contactor A. The longitudinal fixing portion 386 and the transverse fixing portion 385 of the fourth fixing portion 382 are respectively used to be inserted into the longitudinal fixing hole 136 and the transverse fixing hole 135 of the third fixing hole 131 of the second contactor B.

[0084] Furthermore, a card slot is provided on the side surface of the fixing block 133 close to the inside of the housing. The depth of the card slot is greater than the depth of the supporting groove. The longitudinal fixing portions 386 of the third fixing portion 381 and the fourth fixing portion 382 are respectively stuck into the card slot, so that the plane where the second fixing member 38 is located is arranged at an oblique angle with the bottom side plate 13. This can prevent the second fixing member 38 from falling off and fix the housing from multiple directions.

[0085] Furthermore, fixing bosses 1361 protruding towards the corresponding fixing blocks 133 are respectively provided in the longitudinal fixing holes 136 of the fourth fixing hole 132 and the longitudinal fixing holes 136 of the third fixing hole 131. The fixing bosses 1361 are provided with fixing surfaces in a curved surface shape. The fixing surfaces are used to limit the longitudinal fixing portions 386 of the second fixing member 38.

[0086] As shown in Figure 10 FIG. 4, the contact support 25 includes a sliding portion 255, an auxiliary support portion 251 and an interlocking lever 256 respectively disposed on the sliding portion 255. An external interlocking groove 2560 and an internal interlocking groove 2510 are respectively provided on one side of the interlocking lever 256 and the auxiliary support portion 251 away from the interlocking lever 256. The internal interlocking groove 2510 of the auxiliary support portion 251 is located outside the external interlocking groove 2560 and is blocked in FIG. 10. The interlocking module 33 and the interlocking lever 256 are oppositely disposed on both sides of the auxiliary support portion 251 and are respectively spaced from the auxiliary support portion 251. Not only a space for accommodating the interlocking module 33 is left on one side of the auxiliary support portion 251, but also the interlocking lever 256 located on the other side of the auxiliary support portion 251 is used to cooperate with the interlocking module 33 of another contactor, so that the interlocking module 33 does not need to be disposed at a symmetrical position between the contact supports 25 of the two contactors. Furthermore, the interlocking module 33 can be embedded in one of the contactors and can reliably form a reliable interlock between the contact supports 25 of the two contactors. The first locking portion 333 and the second locking portion 334 are respectively inserted into the external interlocking groove 2560 of the first contactor A and the internal interlocking groove 2510 of the second contactor B to lock the corresponding contactor. When the contact support 25 of any one of the two contactors moves to close the switch, one of the corresponding first locking portion 333 and the second locking portion 334 can drive the interlocking member 331 to act, so that the other of the first locking portion 333 and the second locking portion 334 locks the other contactor, preventing the two contactors from closing at the same time. Figure 10 As shown in FIG. 5, which shows a first embodiment of the embedded interlocking module 33. In this embodiment, the interlocking member 331 is rotatably disposed. The interlocking module 33 includes a bracket and an interlocking member 331 rotatably disposed on the bracket. The bracket is fixedly disposed in the housing of the contactor. In this embodiment, the bracket is located in the third functional module 3 at the top of the contactor. The interlocking member 331 includes a pivot portion 332 rotatably connected to the bracket, and a first locking portion 333 and a second locking portion 334 oppositely disposed on both sides of the pivot portion 332. The first locking portion 333 extends outside the contactor for insertion into an adjacent contactor and cooperates with the contact support 25 of the adjacent contactor. The second locking portion 334 cooperates with the contact support 25 of the contactor where it is located. When one of the contactors and an adjacent contactor are closed, the contact support 25 of the other contactor is locked by the interlocking member 331, so that the locked contactor cannot be closed either, preventing the two contactors from closing at the same time and realizing the interlock of the two contactors.

[0087] As shown in Figures 11-12 FIG. 6, which shows a first embodiment of the embedded interlocking module 33. In this embodiment, the interlocking member 331 is rotatably disposed. The interlocking module 33 includes a bracket and an interlocking member 331 rotatably disposed on the bracket. The bracket is fixedly disposed in the housing of the contactor. In this embodiment, the bracket is located in the third functional module 3 at the top of the contactor. The interlocking member 331 includes a pivot portion 332 rotatably connected to the bracket, and a first locking portion 333 and a second locking portion 334 oppositely disposed on both sides of the pivot portion 332. The first locking portion 333 extends outside the contactor for insertion into an adjacent contactor and cooperates with the contact support 25 of the adjacent contactor. The second locking portion 334 cooperates with the contact support 25 of the contactor where it is located. When one of the contactors and an adjacent contactor are closed, the contact support 25 of the other contactor is locked by the interlocking member 331, so that the locked contactor cannot be closed either, preventing the two contactors from closing at the same time and realizing the interlock of the two contactors.

[0088] The bracket is provided with a rotation hole, and an opening communicating with the rotation hole is provided on one side of the rotation hole facing the first interlock hole 325, so that the interlock member 331 installs the pivot portion 332 onto the rotation hole of the bracket through the opening via the first interlock hole 325. On the side of the interlock member 331 facing the first interlock hole 325, a first limiting portion 335 is further protruded, which is used for limiting with an adjacent contactor to prevent the interlock member 331 from falling off.

[0089] The interlock module of the contactor in this embodiment includes a bracket and an interlock member 331 rotatably arranged on the bracket. The bracket of the interlock module 33 is fixedly arranged in one of the contactors. The interlock member 331 is installed on the bracket of one of the contactors. The pivot portion 332 of the interlock member 331 is located in one of the contactors as the rotation center, rather than symmetrically located between the two contactors. This enables the interlock module 33 to no longer require a complex installation structure during use, and only one interlock member 331 needs to be installed. Moreover, when assembling the interlock member 331, the interlock member 331 is inserted into the contactor through the first interlock hole 325 on the side wall of the contactor, and the pivot portion 332 of the interlock member 331 is installed onto the rotation hole of the bracket through the opening. The first limiting portion 335 prevents the interlock member 331 from falling off from the opening. The overall installation is convenient and the interlock module is hidden inside the contactor housing. When assembling, it is not necessary to open the face cover 32 of the contactor, and the assembly efficiency is high.

[0090] Preferably, the interlock module 33 is arranged in the third function module 3 at the top of the contactor, which is convenient for installation and disassembly. Of course, as other embodiments, the interlock module 33 may not be arranged in the third function module 3, for example, it may also be arranged in the second function module 2.

[0091] Reference Figure 10 , the first locking portion 333 and the second locking portion 334 are respectively arranged corresponding to the interlock rod 256 and the auxiliary support portion 251 of the two contactors. The interlock rod 256 and the auxiliary support portion 251 are respectively provided with an external interlock groove 2560 and an internal interlock groove 2510. The first locking portion 333 and the second locking portion 334 are inserted into the external interlock groove 2560 and the internal interlock groove 2510 to lock the corresponding contactor. When the contact support 25 of any one of the two contactors moves to close the switch, it can drive the interlock member 331 to rotate through one of the corresponding first locking portion 333 and the second locking portion 334, and the other of the first locking portion 333 and the second locking portion 334 rotates to lock the other contactor, preventing the two contactors from closing simultaneously.

[0092] Such as Figures 11-12As shown, specifically, the interlocking member 331 is further provided with a second limiting portion 336. The first limiting portion 335 and the second limiting portion 336 are respectively arranged on both sides of the pivoting portion 332, and the second limiting portion 336 functions to balance with the first limiting portion 335. In this embodiment, the sizes of the first limiting portion 335 and the second limiting portion 336 are different, and the sum of the weights of the first limiting portion 335 and the first locking portion 333 is equal to the sum of the weights of the second limiting portion 336 and the second locking portion 334. On the sides of the first limiting portion 335 and the second limiting portion 336 away from the pivoting portion 332, there are respectively a first limiting surface 3350 and a second limiting surface 3360. The distance from the first limiting surface 3350 to the pivoting portion 332 is greater than the distance from the second limiting surface 3360 to the pivoting portion 332.

[0093] As Figures 13-16 Shown is a second embodiment of the embedded interlocking module 33. In this embodiment, the interlocking member 331 moves linearly. The interlocking module 33 includes a mounting member 4 and an interlocking member 331 linearly slidably arranged inside the mounting member 4. The mounting member 4 is fixedly arranged in one of the contactors. Inside the mounting member 4, there is a chute 41 for accommodating the interlocking member 331. The interlocking member 331 can slide along the direction of the chute 41, and on both sides of the interlocking member along the sliding direction of the chute 41, there are respectively two locking portions 337, which are respectively the first locking portion 333 and the second locking portion 334. The two locking portions 337 are respectively arranged corresponding to the interlocking rods 256 and the auxiliary supporting portions 251 of the two contactors. The interlocking rods 256 and the auxiliary supporting portions 251 are respectively provided with an external interlocking groove 2560 and an internal interlocking groove 2510. When the contact support 25 of any one of the contactors moves, it can push the locking portion 337 on one side of the interlocking member 331, causing the interlocking member 331 to move away from this contactor and move towards the adjacent contactor until the locking portion 337 on the other side of the interlocking member 331 is inserted into the external interlocking groove 2560 or the internal interlocking groove 2510 of the adjacent contactor and blocks the movement of the contact support 25 of this contactor, preventing the two contactors from closing simultaneously.

[0094] Preferably, the longitudinal section of the interlocking member 331 is diamond-shaped, and the longitudinal sections of the two locking portions 337 are respectively triangular. On the opposite sides of the locking portion 337, there are respectively locking surfaces 3371. The two locking surfaces 3371 of the locking portion 337 are arranged at an oblique angle. The obliquely arranged locking surfaces 3371 can facilitate the contact support 25 to push the interlocking member 331 to move, and the connection of the two locking surfaces 3371 is used to abut against the outer surface of the contact support 25 after closing for limiting.

[0095] Further, the longitudinal cross-section of the sliding groove 41 is cross-shaped, and two opposite side walls of the sliding groove 41 are respectively recessed in directions away from each other to form guiding grooves 42. Guiding portions 3372 are respectively provided on two opposite sides of the interlocking member 331, and the guiding portions 3372 on both sides of the interlocking member 331 are respectively used to be inserted into the guiding grooves 42 on both sides for sliding fit.

[0096] Further, the mounting member 4 is inserted into the housing from the first interlocking hole 325. Mounting plates 43 are respectively provided on two opposite sides of the mounting member 4, and the two mounting plates 43 are arranged in parallel. Two fixing grooves corresponding to the two mounting plates 43 are provided in the first interlocking hole 325, and the two mounting plates 43 are respectively mounted into the two fixing grooves to be limited and fixed with the housing of the first contactor A. Of course, as other embodiments, the mounting member 4 can also be fixed in the housing through other structures, or pre-mounted and fixed in the housing of the contactor.

[0097] It should be noted that in the description of the present invention, the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which it is usually placed during use. It is only for the convenience of description, rather than indicating that the device or element referred to must have a specific orientation. Therefore, it should not be construed as a limitation to the present invention. In addition, terms such as "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating relative importance.

[0098] The above content is a further detailed description of the present invention in combination with specific preferred embodiments, and it cannot be determined that the specific implementation of the present invention is only limited to these descriptions. For those of ordinary skill in the technical field to which the present invention belongs, without departing from the concept of the present invention, several simple deductions or substitutions can still be made, and all should be regarded as belonging to the protection scope of the present invention.

Claims

1. A reversible contactor, comprising at least two contactors which are interlocked through an interlocking module (33). It is characterized in that: The two contactors are respectively a first contactor (A) and a second contactor (B). The outer shells of the first contactor (A) and the second contactor (B) each include a left side plate (322) and a right side plate (323) arranged oppositely, and an end plate (324) connected between at least one end of the left side plate (322) and the right side plate (323). An embedded interlocking module (33) is arranged inside the outer shell of the second contactor (B) near the left side plate (322). The interlocking module (33) includes an interlocking member (331), and the interlocking member (331) is provided with a first locking portion (333) and a second locking portion (334). The left side plate (322) of the second contactor (B) is provided with a first interlocking hole (325) for passing through the interlocking module (33), and the right side plate (323) of the first contactor (A) is provided with a second interlocking hole (326). The second locking portion (334) cooperates with the contact support (25) of the second contactor (B), and the first locking portion (333) passes through the first interlocking hole (325) and the second interlocking hole (326) to cooperate with the contact support (25) of the first contactor (A), so that when one of the two contactors is closed, the contact support (25) of the other contactor is locked through the interlocking member (331). It further includes a fixing member (36). The fixing member (36) includes a first fixing portion (361) and a second fixing portion (362) arranged oppositely, and a supporting portion (363) connected between the first fixing portion (361) and the second fixing portion (362). One end of the end plate (324) of the first contactor (A) connected to the right side plate (323) is provided with a first fixing hole (3610) for inserting the first fixing portion (361), and one end of the end plate (324) of the second contactor (B) connected to the left side plate (322) is provided with a second fixing hole (3620) for inserting the second fixing portion (362). The right side plate (323) of the first contactor (A) is in close contact with the left side plate (322) of the second contactor (B). The first fixing portion (361) and the second fixing portion (362) of the fixing member (36) are respectively inserted into the first fixing hole (3610) of the first contactor (A) and the second fixing hole (3620) of the second contactor (B), and the right side plate (323) of the first contactor (A) and the left side plate (322) of the second contactor (B) are limited between the first fixing portion (361) and the second fixing portion (362).

2. The reversible contactor according to claim 1, characterized in that: Each of the two contactors includes a first functional module (1), a second functional module (2), and a third functional module (3). The second functional module (2) is disposed between the first functional module (1) and the third functional module (3). The first functional module (1) is provided with an electromagnetic system, which includes a moving iron core and a coil for driving the moving iron core to move. The second functional module (2) includes a contact system and a contact terminal (23). The contact system includes a static contact (24) and a moving contact. The moving contact is mounted on a contact support (25) driven by the electromagnetic system. The moving iron core of the electromagnetic system is connected to the contact support (25). The static contact (24) is connected to the working circuit through the contact terminal (23). The third functional module (3) is provided with a coil terminal (31). The second functional module (2) further includes a coil connection structure (26) for electrically connecting the coil terminal (31) and the coil. The coil is connected to the coil terminal (31) through the coil connection structure (26). The interlock module (33) is disposed in the third functional module (3) of the second contactor (B).

3. The reversible contactor according to claim 2, characterized in that: The housings of the first contactor (A) and the second contactor (B) each include two of the end plates (324), which are respectively a front end plate (324) and a rear end plate (324). The two end plates (324) are respectively connected between the two ends of their respective left side plates (322) and right side plates (323). A top side plate is provided at one end of the left side plate (322), the right side plate (323), and the two end plates (324) away from the second functional module (2). The top side plate, the left side plate (322), the right side plate (323), and the two end plates (324) form a face cover (32) of the third functional module (3). The base (21) of the second functional module (2) includes a second left side plate (211) and a second right side plate disposed opposite to each other. The base of the first functional module (1) includes a third left side plate (11) and a third right side plate (12) disposed opposite to each other. The left side plate (322), the second left side plate (211), and the third left side plate (11) are flush. The right side plate (323), the second right side plate, and the third right side plate (12) are flush. The base of the first functional module (1) further includes a bottom side plate (13). The bottom side plate (13) is located on the side of the third left side plate (11) and the third right side plate (12) away from the second functional module (2). The bottom side plate (13) is connected between the third left side plate (11) and the third right side plate (12). Third fixing holes (131) and fourth fixing holes (132) are respectively provided at both ends of the bottom side plate (13) connected to the third left side plate (11) and the third right side plate (12). The reversible contactor further includes a second fixing member (38), the second fixing member (38) includes a third fixing portion (381) and a fourth fixing portion (382), and a second supporting portion (383) connected between the third fixing portion (381) and the fourth fixing portion (382). When the third right side plate (12) of the first contactor (A) is in close contact with the third left side plate (11) of the second contactor (B), the third fixing portion (381) and the fourth fixing portion (382) of the second fixing member (38) can be respectively inserted into the fourth fixing hole (132) of the first contactor (A) and the third fixing hole (131) of the first contactor (A), so as to limit the third left side plate (11) and the third right side plate (12) between the third fixing portion (381) and the fourth fixing portion (382).

4. The reversible contactor according to claim 1, characterized in that: The outer casings of the first contactor (A) and the second contactor (B) are the same. The left side plates (322) of the first contactor (A) and the second contactor (B) are both provided with first interlock holes (325), the right side plates (323) of the first contactor (A) and the second contactor (B) are both provided with second interlock holes (326), and both ends of the end plates (324) of the first contactor (A) and the second contactor (B) connected to their respective left side plates (322) and right side plates (323) are respectively provided with first fixing holes (3610) and second fixing holes (3620).

5. The reversible contactor according to claim 1, characterized in that: The outer casings of the first contactor (A) and the second contactor (B) both include two of the end plates (324), the two end plates (324) are respectively a front end plate (324) and a rear end plate (324), the two end plates (324) are respectively connected between both ends of their respective left side plates (322) and right side plates (323), and further include two fixing members (36) respectively provided corresponding to the two end plates (324). The first fixing portions (361) and the second fixing portions (362) of the two fixing members (36) respectively pass through the corresponding end plates (324), and limit the right side plate (323) of the first contactor (A) and the left side plate (322) of the second contactor (B) between the first fixing portion (361) and the second fixing portion (362) of the two fixing members (36).

6. The reversible contactor according to claim 5, characterized in that: Removable side covers (37) are respectively provided in the first interlock holes (325) and the second interlock holes (326).

7. The reversible contactor according to claim 1, characterized in that: The left side plate (322) and the right side plate (323) are respectively provided with left end faces (3221) and right end faces (3231) inserted into the first fixing hole (3610) and the second fixing hole (3620). Half limiting grooves (327) are respectively provided on the left end face (3221) and the right end face (3231). The half limiting groove (327) on the left end face (3221) and the half limiting groove (327) on the right end face (3231) of the adjacent contactor form a limiting groove.

8. The reversible contactor according to claim 1, characterized in that: The side surfaces of the first fixing part (361) and the second fixing part (362) facing away from each other are respectively provided with protruding claw catches (365), and the claw catches (365) are in limiting cooperation with the inner wall of the end plate (324).

9. The reversible contactor according to claim 3, characterized in that: Fixing blocks (133) are respectively arranged in the third fixing hole (131) and the fourth fixing hole (132). One side of the fixing blocks (133) in the third fixing hole (131) and the fourth fixing hole (132) is respectively connected to the third left side plate (11) and the third right side plate (12). The remaining three side surfaces of the fixing blocks (133) and the hole walls of the third fixing hole (131) and the fourth fixing hole (132) respectively form U-shaped holes. The U-shaped holes include semi-supporting grooves (134) and transverse fixing holes (135) oppositely arranged on both sides of the fixing block (133), and longitudinal fixing holes (136) connecting the semi-supporting grooves (134) and the transverse fixing holes (135). When the third right side plate (12) of the first contactor (A) contacts the third left side plate (11) of the second contactor (B), the semi-supporting grooves (134) of the fourth fixing hole (132) and the semi-supporting grooves (134) of the third fixing hole (131) fix the same side of the corresponding fixing block (133) and communicate to form a supporting groove for accommodating the second support part (383) of the second fixing member (38). The transverse fixing holes (135) of the fourth fixing hole (132) and the transverse fixing holes (135) of the third fixing hole (131) are located on the other side of the fixing block (133) and are arranged at intervals. The longitudinal fixing holes (136) of the fourth fixing hole (132) and the longitudinal fixing holes (136) of the third fixing hole (131) are respectively arranged on the side surfaces of the corresponding fixing blocks (133) away from the other fixing block (133).

10. The reversible contactor according to claim 9, characterized in that: Both the third fixing part (381) and the fourth fixing part (382) include a longitudinal fixing part (386) and a transverse fixing part (385). The longitudinal fixing part (386) is connected between the transverse fixing part (385) and the second support part (383). The longitudinal fixing part (386) and the transverse fixing part (385) of the third fixing part (381) are respectively used for being inserted into the longitudinal fixing hole (136) and the transverse fixing hole (135) of the fourth fixing hole (132) of the first contactor (A). The longitudinal fixing part (386) and the transverse fixing part (385) of the fourth fixing part (382) are respectively used for being inserted into the longitudinal fixing hole (136) and the transverse fixing hole (135) of the third fixing hole (131) of the second contactor (B).

11. The reversible contactor according to claim 10, characterized in that: The side surface of the fixing block (133) close to the interior of the housing is provided with a card slot, and the depth of the card slot is greater than the depth of the support groove. The longitudinal fixing parts (386) of the third fixing part (381) and the fourth fixing part (382) are respectively clamped into the card slots, so that the plane where the second fixing member (38) is located is arranged at an oblique angle with the bottom side plate (13) to prevent the second fixing member (38) from falling off.

12. The reversible contactor according to claim 10, characterized in that: The longitudinal fixing holes (136) of the fourth fixing hole (132) and the longitudinal fixing holes (136) of the third fixing hole (131) are respectively provided with fixing bosses (1361) protruding towards the corresponding fixing blocks (133). The fixing bosses (1361) are provided with fixing surfaces in a curved surface shape, and the fixing surfaces are used to limit the longitudinal fixing portions (386) of the second fixing member (38).

13. The reversible contactor according to claim 1, characterized in that: The contact support (25) includes a sliding portion (255), an auxiliary support portion (251) and an interlocking rod (256) respectively arranged on the sliding portion (255). The interlocking module (33) and the interlocking rod (256) are oppositely arranged on both sides of the auxiliary support portion (251) and are respectively arranged at intervals from the auxiliary support portion (251). The interlocking rod (256) and the side of the auxiliary support portion (251) away from the interlocking rod (256) are respectively provided with an external interlocking groove (2560) and an internal interlocking groove (2510). The first locking portion (333) and the second locking portion (334) are respectively inserted into the external interlocking groove (2560) of the first contactor (A) and the internal interlocking groove (2510) of the second contactor (B) to lock the corresponding contactors. When the contact support (25) of any one of the two contactors moves to close the switch, it can drive the interlocking member (331) to act through one of the first locking portion (333) and the second locking portion (334), so that the other of the first locking portion (333) and the second locking portion (334) locks the other contactor, preventing the two contactors from closing at the same time.

14. The reversible contactor according to claim 13, characterized in that: The interlocking module (33) includes a bracket and an interlocking member (331) rotatably arranged on the bracket. The bracket is fixedly arranged in the housing of the contactor. The interlocking member (331) includes a pivot portion (332) rotatably connected to the bracket, and a first locking portion (333) and a second locking portion (334) oppositely arranged on both sides of the pivot portion (332).

15. The reversible contactor according to claim 14, characterized in that: The bracket is provided with a rotation hole. One side of the rotation hole facing the first interlocking hole (325) is provided with an opening communicating with the rotation hole, so that the interlocking member (331) installs the pivot portion (332) into the rotation hole of the bracket through the opening through the first interlocking hole (325). The interlocking member (331) also protrudes with a first limiting portion (335) on the side facing the first interlocking hole (325) for limiting with the adjacent contactor to prevent the interlocking member (331) from falling off.

16. The reversible contactor according to claim 15, characterized in that: The interlocking member (331) is also provided with a second limiting portion (336). The first limiting portion (335) and the second limiting portion (336) are respectively arranged on both sides of the pivot portion (332).

17. The reversible contactor according to claim 13, wherein: The interlocking module (33) includes a mounting member (4) and an interlocking member (331) sliding linearly inside the mounting member (4). The mounting member (4) is fixedly arranged inside the second contactor (B). A chute (41) for accommodating the interlocking member (331) is arranged inside the mounting member (4). The interlocking member (331) can slide along the direction of the chute (41), and two locking portions (337) are respectively arranged on both sides of the interlocking member along the sliding direction of the chute (41). The two locking portions (337) respectively serve as the first locking portion (333) and the second locking portion (334).

18. The reversible contactor according to claim 17, characterized in that: The longitudinal section of the interlocking member (331) is diamond-shaped, and the longitudinal sections of the two locking portions (337) are respectively triangular. Locking surfaces (3371) are respectively arranged on the two opposite sides of the locking portion (337).

19. The reversible contactor according to claim 17, characterized in that: The longitudinal section of the chute (41) is cross-shaped. Guide grooves (42) are respectively recessed in two opposite side walls of the chute (41) in directions away from each other. Guide portions (3372) are respectively arranged on two opposite sides of the interlocking member (331). The guide portions (3372) on both sides of the interlocking member (331) are respectively used to be inserted into the guide grooves (42) on both sides for sliding fit.

20. The reversible contactor according to claim 17, characterized in that: The mounting member (4) is inserted into the housing from the first interlocking hole (325). Mounting plates (43) are respectively arranged on two opposite sides of the mounting member (4). The two mounting plates (43) are arranged in parallel. Two fixing grooves corresponding to the two mounting plates (43) are arranged in the first interlocking hole (325). The two mounting plates (43) are respectively installed in the two fixing grooves to be position-limited and fixed with the housing of the first contactor (A).

21. The reversible contactor according to claim 2, characterized in that: The third functional module (3) is provided with two coil terminal blocks (31), and the two coil terminal blocks (31) are respectively directly above the two wiring positions of the coil. The second functional module (2) includes a base (21) and a cover (22) sleeved outside the base (21). The contact system is arranged inside the base (21). The coil connection structure (26) is located between the outside of the base (21) and the inside of the cover (22).

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