Contactor interlocking structure

Abstract

The contactor interlocking structure comprises two contactors and an interlocking device, the interlocking device comprises a connecting piece, a locking piece and an elastic piece, the locking piece is movably arranged on the connecting piece, and the elastic piece is connected between the connecting piece and the locking piece; the bottom edges of the shells of the two contactors are respectively provided with half grooves along the height direction of the contactors, when the shells of the two contactors are spliced, at least the lower parts of the side edges of the shells of the two contactors are attached, the half grooves of the shells of the two contactors are spliced to form a mounting groove, and the connecting piece is mounted in the mounting groove; when one contactor is switched on, the locking piece is driven to overcome the acting force of the elastic piece to move until the other contactor is stopped from being switched on. According to the contactor interlocking structure provided by the utility model, the half grooves on the bottom edges of the shells of the two contactors are spliced to form the mounting groove for mounting the interlocking device, the interlocking device can be directly mounted and dismounted, the contactors do not need to be dismounted, the problem of difficult dismounting is solved, the interlocking device can be hidden, the interlocking device is prevented from being dismounted by mistake, and the contactor interlocking structure is more regular and beautiful.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of low voltage electrical apparatus, concretely relates to a contactor interlocking structure. BACKGROUND

[0002] Mechanical interlocking contactor can control the forward and reverse operation of motor, reverse braking, constant operation and jog operation. The mechanical interlocking contactor generally includes two contactors connected with each other, and the two contactors can be interlocked through an interlocking device. When one of the contactors is closed, the other contactor is locked in a state of being unable to be closed through the interlocking device, so as to prevent the two contactors from being closed at the same time. The existing contactor mechanical interlocking structure has the problem of being not easy to disassemble, and further has the problems of low mechanical interlocking reliability and complex structure. SUMMARY

[0003] The utility model aims at overcoming at least one defect of prior art, and provides a contactor interlocking structure.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0005] The contactor interlocking structure includes two contactors and an interlocking device. The two contactors each include a shell. The interlocking device includes a connecting piece, a locking piece and an elastic piece. The locking piece is movably arranged on the connecting piece, and the elastic piece is connected between the connecting piece and the locking piece. The bottom edges of the shells of the two contactors are respectively provided with half grooves in the height direction of the contactors. When the shells of the two contactors are assembled, the lower parts of the side edges of the shells of the two contactors are at least in contact, and the half grooves of the shells of the two contactors are spliced to form a mounting groove, and the connecting piece is mounted in the mounting groove.

[0006] When one of the contactors is closed, the locking piece is driven to move against the force of the elastic piece to block the closing of the other contactor.

[0007] Optionally, the locking piece is rotatably arranged on the connecting piece, and the locking piece is provided with a locking portion. When one of the contactors is closed, the locking portion is pushed to block the closing of the other contactor.

[0008] Optionally, the locking piece includes a locking piece shaft rotatably connected with the connecting piece, and opposite sides of the locking piece shaft are respectively provided with a locking protrusion and a first limiting portion. The locking protrusion serves as the locking portion. When one of the contactors is closed, the locking protrusion is pushed to block the closing of the other contactor, and the first limiting portion is used to connect the elastic piece.

[0009] Optionally, the locking protrusion is provided with two locking protrusions arranged on opposite ends of the locking piece shaft.

[0010] Optionally, the locking protrusion is provided with two positioning surfaces and a locking surface connected between the two positioning surfaces, wherein when one contactor is closing, the locking surface is driven to rotate by the locking member to block the closing of the other contactor, and the locking surface is kept from blocking the closing of the other contactor by acting on the corresponding positioning surface.

[0011] Optionally, the locking protrusion is in a fan shape, the locking surface is an arc side of the fan shape, and the two positioning surfaces are straight sides on two sides of the fan shape.

[0012] Optionally, the coupling member comprises a coupling member body provided with a receiving groove, the side walls on opposite sides of the receiving groove are respectively provided with a shaft hole matched with the rotation of the shaft of the locking member, the bottom wall of the receiving groove is provided with a second limiting part, the locking member is rotatably installed in the receiving groove by inserting the two ends of the shaft of the locking member into the shaft holes on the two sides, one end of the elastic member is connected with the first limiting part, and the other end of the elastic member is connected with the second limiting part.

[0013] Optionally, the housings of the two contactors are respectively provided with an electromagnetic system and a contact system, the contact system comprises a movable contact and a static contact, the movable contact is arranged on a contact support driven by the electromagnetic system, the contact support is located above the electromagnetic system, the interlocking device is located between the electromagnetic systems of the two contactors, the contact support pushes the locking member of the interlocking device through the linkage member, the linkage member is located below the contact support and above the interlocking device, the upper end of the linkage member is connected with the contact support, and the lower end of the linkage member is provided with a driving surface; when one contactor is closing, the contact support drives the linkage member to push the locking member through the driving surface, the locking member blocks the movement of the linkage member of the other contactor, and the contactor is locked in a state of being unable to close.

[0014] Optionally, the driving surface is obliquely arranged on the lower end of the linkage member.

[0015] Optionally, the side walls of the half grooves of the housings of the two contactors are respectively provided with at least one guide protrusion, the coupling member is provided with a guide groove corresponding to the guide protrusion, and the length direction of the guide protrusion is arranged along the height direction of the contactor.

[0016] Optionally, the guide groove is a dovetail groove, and the guide protrusion is a dovetail-shaped protruding rib structure.

[0017] Optionally, the half grooves of the housings of the two contactors are respectively provided with at least one elastic buckle, and the coupling member is provided with a buckle hole corresponding to the elastic buckle.

[0018] Optionally, guide rail grooves are provided on the bottom edge of the housings of the two contactors, and the half-groove is located in the guide rail groove.

[0019] This utility model discloses a contactor interlocking structure in which the half-grooves on the bottom edges of the housings of two contactors are joined together to form an installation groove for installing the interlocking device. The interlocking device can be directly installed and disassembled without disassembling the contactors, solving the problem of difficult installation and disassembly. It can also hide the interlocking device to prevent accidental disassembly, resulting in a neater and more aesthetically pleasing appearance. Moreover, the locking element and the elastic element are respectively set on the connecting element and assembled into an integrated interlocking device. The entire interlocking device can be installed and disassembled by directly installing and disassembling the connecting element. After the connecting element is installed in the installation groove formed by the half-grooves of the two contactors, the two contactors are fixedly connected by the connecting element. At the same time, the locking element on the connecting element interlocks the two contactors to prevent the two contactors from closing at the same time.

[0020] Furthermore, the swing locking mechanism only requires one locking part to achieve interlocking between two contactors, preventing both contactors from closing simultaneously. The structure is very simple, eliminating the need for the locking mechanism to switch between different locking parts to cooperate with the two contactors. It has fewer parts, is easy to operate, and solves the problem of low reliability of mechanical interlocking between adjacent contactors.

[0021] In addition, the locking component has a simple structure. The locking protrusion for interlocking two contactors and the first limiting part for connecting the elastic component are set on opposite sides of the locking component's rotating shaft, making the locking component's rotation more stable and reliable, and facilitating a compact and reasonable arrangement of the connecting component, locking component, and elastic component.

[0022] Furthermore, the semi-groove is located within the guide rail groove. During installation, the interlocking device is inserted into the mounting groove, connecting the interlocking device and the two contactors as a single unit, and then mounted on the guide rail together via the guide rail groove. After installation, the interlocking device is completely concealed by the guide rail, making it difficult for non-professionals to spot and accidentally disassemble it. Attached Figure Description

[0023] Figure 1 This is a perspective view of the contactor interlocking structure of this utility model;

[0024] Figure 2 This is a cross-sectional view of the contactor interlocking structure of this utility model;

[0025] Figure 3 This is a schematic diagram of the bottom edge of the contactor of this utility model;

[0026] Figure 4 This is a cross-sectional view of the interlocking device of this utility model;

[0027] Figure 5 This is a structural schematic diagram of the locking component of this utility model;

[0028] Figure 6 is a structure schematic view of the connecting piece of one perspective of the utility model;

[0029] Figure 7 is a structure schematic view of the connecting piece of another perspective of the utility model.

[0030] Interlocking device 100;

[0031] Connecting piece 1;Connecting piece body 11;Rotary shaft hole 111;Socket 112;Second limiting portion 12;Connecting piece through hole 121;Second connecting shaft 122;Stiffener 13;Guide slot 131;Accommodation slot 14;

[0032] Locking piece 2;Locking protrusion 21;Locking surface 211;Positioning surface 212;Locking piece rotary shaft 22;First limiting portion 23;Limiting protrusion 231;First connecting shaft 232;Stiffener 24;

[0033] Elastic piece 3;Spring body 31;Spring hook 32;

[0034] Contactor 400;

[0035] Shell 4;Half slot 41;Mounting slot 410;Guide protrusion 42;Elastic buckle 43;Guide rail slot 44;

[0036] Electromagnetic system 5;Contactor system 6;Contactor support 7;Linkage 8;Driving surface 81. DETAILED DESCRIPTION

[0037] The following embodiments are further illustrated in the accompanying drawings, which further illustrate the specific implementation of the contactor interlocking structure of the utility model. The contactor interlocking structure of the utility model is not limited to the description of the following embodiments.

[0038] As shown in Figure 1 and Figure 2 , the contactor interlocking structure of the embodiment includes at least two contactors 400 and an interlocking device 100 for interlocking the at least two contactors 400, the interlocking device 100 includes a locking piece 2 arranged movably, and the two contactors 400 respectively include a shell 4, the shell 4 of the two contactors 400 is respectively provided with an electromagnetic system 5 and a contactor system 6, the contactor system 6 includes a movable contactor and a static contactor, and the movable contactor is arranged on a contactor support 7 driven by the electromagnetic system 5. When one of the contactors 400 is closed, the contactor support 7 directly or indirectly pushes the locking piece 2 of the interlocking device 100, so that the locking piece 2 directly or indirectly blocks the movement of the contactor support 7 of the other contactor 400, and the contactor 400 is locked in a state that cannot be closed.

[0039] It should be noted that the electromagnetic system 5 is a prior art, which generally comprises a coil frame, a coil sleeved on the coil frame, and a moving iron core driven by the coil, when the coil is energized, the moving iron core is driven to move under the electromagnetic force generated by the coil and drives the contact support 7, the moving contact moves with the contact support 7 to contact or separate from the static contact, thereby realizing the closing or opening of the contactor.

[0040] As shown in Figures 1-4 The interlocking device 100 of the embodiment further comprises a coupling member 1 and an elastic member 3, the locking member 2 is movably arranged on the coupling member 1, and the elastic member 3 is connected between the coupling member 1 and the locking member 2 and used to drive the locking member 2 to reset; the bottom edges of the housings 4 of the two contactors 400 are respectively provided with half grooves 41 along the height direction of the contactors 400, when the housings 4 of the two contactors 400 are assembled, the lower parts of the side edges of the housings 4 of the two contactors 400 are at least abutted, and the half grooves 41 of the housings 4 of the two contactors 400 are spliced to form a mounting groove 410, and the coupling member 1 is mounted in the mounting groove 410. When one of the contactors 400 is closed, the locking member 2 is driven to move to block the closing of the other contactor 400 against the force of the elastic member 3; when this contactor 400 is opened, the locking member 2 is reset under the action of the elastic member 3, thereby releasing the locking of the other contactor 400, so that the other contactor 400 can be normally closed. It should be noted that the half groove 41 means that at least one side of the four surrounding side walls of the half groove 41 has a notch for the connection of the two half grooves 41. The assembly direction of the two contactors 400 is the width direction of the contactors 400, i.e. Figure 2 the left-right direction in Figure 2 , the length direction of the contactors 400 is the vertical direction of the drawing, i.e. Figure 2 the front-rear direction, and the height direction of the contactors 400 is the up-down direction in .

[0041] The contactor interlocking structure of the embodiment has the following advantages: the half grooves 41 on the bottom edges of the housings 4 of the two contactors 400 are spliced to form the mounting groove 410 for mounting the interlocking device 100, the interlocking device 100 can be directly mounted and dismounted without dismounting the contactors 400, thereby solving the problem of difficult dismounting, hiding the interlocking device 100 to avoid the dismounting of the interlocking device 100 by mistake, and making the appearance more regular and beautiful; moreover, the locking member 2 and the elastic member 3 are arranged on the coupling member 1 to form the integrated interlocking device 100, the coupling member 1 can be directly mounted and dismounted to complete the mounting and dismounting of the entire interlocking device 100, the coupling member 1 is mounted in the mounting groove 410 formed by the splicing of the half grooves 41 of the two contactors 400, thereby fixedly connecting the two contactors 400 through the coupling member 1 and interlocking the two contactors 400 through the locking member 2 on the coupling member 1 to prevent the simultaneous closing of the two contactors 400.

[0042] In the embodiment, the side edges of the two contactors 400 are completely fitted when the two contactor housings 4 are assembled. Of course, the contactor interlocking structure of the embodiment is also applicable to the case where the lower part of the side edges of the two contactor housings 4 are fitted and the upper part of the side edges has a space therebetween when the two contactors 400 are assembled.

[0043] The bottom edge of the housing 4 of the two contactors 400 is usually provided with a guide rail groove 44, respectively, and the two contactors 400 are installed on the guide rail in the distribution box through the guide rail groove 44. In the embodiment, the half groove 41 is located in the guide rail groove 44. During installation, the interlocking device 100 is installed in the installation groove 410, so that the interlocking device 100 and the two contactors 400 are connected into one body, and then the two contactors 400 are installed on the guide rail through the guide rail groove 44. After installation, the interlocking device 100 is completely blocked by the guide rail, and it is not easy for non-professionals to find and cause misdisassembly.

[0044] As shown in Figures 1-2 , the half groove 41 is in communication with the housing 4. Optionally, the housing 4 is provided with a detachable baffle for closing the housing 4 by being installed in the half groove 41. In the case where the interlocking device 100 is not installed, the baffle can be installed. When the interlocking device 100 needs to be installed, the baffle is removed. Figure 1 In the embodiment, the bottom edge of the housing 4 is provided with the half groove 41 on both sides, and the half groove 41 on one side is provided with the baffle and the half groove 41 on the other side is provided with the interlocking device 100.

[0045] As shown in Figure 2As shown, the electromagnetic system 5 is generally located in the lower part of the housing 4 of the contactor 400, and the contact support 7 is generally located above the electromagnetic system 5 and in the upper part of the housing 4 of the contactor 400. In this embodiment, the interlocking device 100 is installed in the housings 4 of the two contactors 400 from the mounting groove 410 on the bottom edge of the housing 4, and is located between the electromagnetic systems 5 of the two contactors 400. The contact support 7 pushes the locking member 2 of the interlocking device 100 through the linkage 8, which is located below the contact support 7 and above the interlocking device 100. The upper end of the linkage 8 is connected to the contact support 7, and the lower end of the linkage 8 is provided with a driving surface 81 for pushing the locking member 2 of the interlocking device 100. When one of the contactors 400 is closed, the contact support 7 drives the linkage 8 to push the locking member 2 of the interlocking device 100 through the driving surface 81, so that the locking member 2 blocks the movement of the linkage 8 of the other contactor 400, thereby locking the contactor 400 in a state where it cannot be closed. By arranging the interlocking device 100 between the electromagnetic systems 5 of the two contactors 400, the contact support 7 located above the electromagnetic system 5 pushes the locking member 2 of the interlocking device 100 through the linkage 8, which is compact and reasonable in layout. In this embodiment, the linkage 8 serves as a transmission member between the contact support 7 and the locking member 2 of the interlocking device 100. Of course, as another embodiment, the contact support 7 can be extended downward to be provided with a driving portion for directly driving the locking member 2. Preferably, the driving surface 81 of the linkage 8 is obliquely arranged on the lower end of the linkage 8. The oblique arrangement of the driving surface 81 of the linkage 8 for driving the locking member 2 is more conducive to pushing the locking member 2.

[0046] Optionally, the coupling member 1 is detachably connected to the housings 4 of the two contactors 400, respectively. At least one guide protrusion 42 is arranged on the side wall of the half groove 41 of the housing 4 of each contactor 400. A guide groove 131 corresponding to the guide protrusion 42 is arranged on the outer wall of the coupling member 1, i.e. at least two guide grooves 131 are arranged on the outer wall of the coupling member 1, corresponding to at least one guide protrusion 42 in the two half grooves 41. The length direction of the guide protrusion 42 is arranged along the height direction of the contactor 400. The guide protrusion 42 on the housing 4 of the contactor 400 cooperates with the guide groove 131 on the outer wall of the coupling member 1, which plays a guiding role in the installation of the coupling member 1, and also plays a limiting role in the front-rear direction and the left-right direction. Preferably, the guide groove 131 is a dovetail groove, and the guide protrusion 42 is a dovetail-shaped protrusion structure. The guide groove 131 and the guide protrusion 42 are designed in a dovetail shape, which has a better limiting effect.

[0047] Optionally, the coupling piece 1 is detachably connected with the housings 4 of the two contactors 400 respectively, at least one elastic buckle 43 is arranged in each half slot 41 of the housings 4 of the two contactors 400, and a corresponding buckle hole 112 is arranged on the bottom edge of the coupling piece 1, that is, at least two buckle holes 112 are arranged on the bottom edge of the coupling piece 1 and correspond to the at least one elastic buckle 43 in the two half slots 41. The elastic buckle 43 on the housing 4 of the two contactors 400 cooperates with the buckle hole 112 on the bottom edge of the coupling piece 1 to limit the upward and downward movement of the coupling piece 1. Since the elastic buckle 43 has a certain elasticity, the elastic buckle 43 can be pried open with a tool such as a lever when disassembled, and the interlocking device 100 can be taken out from the mounting slot 410 of the two contactors 400. Preferably, the elastic buckle 43 is a reverse buckle structure arranged on the bottom edge of the side wall of the half slot 41, and the buckle part of the elastic buckle 43 protrudes from the side wall of the half slot 41 and extends into the half slot 41 for buckling in the buckle hole 112.

[0048] Preferably, the guide protrusion 42 is arranged on the side wall of the half slot 41 opposite the notch of the half slot 41, that is, on one side wall of the half slot 41 in the width direction of the contactor 400; correspondingly, the two guide grooves 131 are symmetrically arranged on the two side walls of the coupling piece 1 in the width direction of the contactor 400. Two elastic buckles 43 are arranged on the bottom edge of the side wall of each half slot 41 opposite the notch of the half slot 41, and correspondingly, four buckle holes 112 are arranged on the bottom edge of the coupling piece 1 in a quadrilateral distribution.

[0049] As shown in Figure 2 , Figure 4 The first embodiment of the interlocking device 100 is shown in the drawings, the locking piece 2 is rotatably arranged on the coupling piece 1, the locking piece 2 is provided with at least one locking part, one of the two contactors 400 pushes the locking part to block the movement of the linkage 8 of the other contactor 400 in the closing direction when closing. When neither of the two contactors 400 is closed, the locking part of the locking piece 2 is located in the path of movement of the linkage 8 of each of the two contactors 400 in the closing direction at the same time, and the two contactors 400 can be closed respectively by pushing the same locking part to drive the locking piece 2 to rotate; when one of the two contactors 400 is closing, the linkage 8 pushes the locking part to block the movement of the linkage 8 of the other contactor 400 in the closing direction, that is, the other contactor 400 cannot be closed. The swinging locking piece 2 is provided with only one locking part, which can realize the interlocking between the two contactors 400 and prevent the two contactors 400 from being closed at the same time, and the structure is very simple, without the need for the locking piece 2 to switch different locking parts to cooperate with the two contactors 400, the number of parts is small, and the operation is simple, solving the problem of low mechanical interlocking reliability between adjacent two contactors 400.

[0050] As shown in Figure 4 , Figure 5As shown, the locking member 2 of the embodiment comprises a locking member rotating shaft 22 rotationally connected with the coupling member 1, opposite sides of the locking member rotating shaft 22 are respectively provided with a locking protrusion 21 and a first limiting portion 23, the locking protrusion 21 serves as the locking portion, wherein one contactor 400 pushes the locking protrusion 21 to block the closing of the other contactor 400 when closing, and the first limiting portion 23 is used for connecting the elastic member 3. The locking member 2 has simple structure, the locking protrusion 21 for interlocking the two contactors 400 and the first limiting portion 23 for connecting the elastic member 3 are arranged on opposite sides of the locking member rotating shaft 22, so that the rotation of the locking member 2 is more stable and reliable, and the coupling member 1, the locking member 2 and the elastic member 3 are compactly and reasonably arranged.

[0051] Specifically, the first limiting portion 23 of the locking member 2 comprises two limiting protrusions 231 arranged opposite along the axial direction of the locking member rotating shaft 22 and a first connecting shaft 232 connected between the two limiting protrusions 231. The locking member rotating shaft 22 is further provided with two reinforcing ribs 24 respectively connected with the outer sides of the two limiting protrusions 231 on the radial side where the first limiting portion 23 is arranged.

[0052] Preferably, the locking protrusion 21 is provided with two locking protrusions 21 arranged on opposite ends of the locking member rotating shaft 22; correspondingly, the linkage member 8 is provided with two driving surfaces 81. The two locking protrusions 21 of the locking member 2 are driven by the linkage member 8 of one contactor 400 and jointly lock the other contactor 400, so that the driving and locking between the locking member 2 and the linkage member 8 of the contactor 400 are more stable and reliable. Of course, the locking protrusion 21 can also be provided with three or more. Optionally, the locking member rotating shaft 22 is a round shaft structure, and the locking protrusion 21 and the first limiting portion 23 are protruding structures on opposite sides of the locking member rotating shaft 22 in the radial direction. The two locking protrusions 21 are arranged on one side of the locking member rotating shaft 22 in the radial direction and located at the axial ends of the locking member rotating shaft 22, and the first limiting portion 23 is arranged on the other side of the locking member rotating shaft 22 in the radial direction and located at the middle position of the locking member rotating shaft 22 in the axial direction. The first limiting portion 23 is arranged at the middle position of the locking member rotating shaft 22 opposite to the locking protrusion 21 of the locking member 2, and the locking member 2 is balanced in force and operates more stably through the reasonable arrangement of the locking member rotating shaft 22 rotationally connected with the coupling member 1, the locking protrusion 21 driven by the contactor 400 and the first limiting portion 23 driven by the elastic member 3.

[0053] As shown in the drawings, Figure 2 , Figure 5As shown, the contactor 400 of this embodiment has a cooperative structure between the linkage 8 and the locking member 1. The locking protrusion 21 is provided with two positioning surfaces 212 and a locking surface 211 connected between the two positioning surfaces 212. When one contactor 400 is closed, the locking surface 211 is pushed by the driving surface 81 of the linkage 8 to rotate the locking member 2, so that the locking surface 211 blocks the other contactor 400 from closing. The driving surface 81 of the linkage 8 acts on the corresponding positioning surface 212 to keep the locking surface 211 blocking the other contactor 400 from closing.

[0054] Preferably, the locking protrusion 21 is a fan-shaped structure, the locking surface 211 is the arc-shaped edge of the fan-shaped structure, and the two positioning surfaces 212 are the straight side edges on both sides of the fan-shaped structure. Correspondingly, the driving surface 81 of the linkage 8 is an arc-shaped concave surface that is inclinedly disposed on the lower end of the linkage 8 and cooperates with the fan-shaped locking protrusion 21. Of course, the driving surface 81 can also be a straight guide surface, an inclined surface, etc.

[0055] like Figures 4-7 As shown, the connecting member 1 in this embodiment includes a connecting member body 11, which has a receiving groove 14. The receiving groove 14 has rotating shaft holes 111 on its opposite side walls, which rotatably engage with the locking member's rotating shaft 22. A second limiting part 12 is provided on the bottom wall of the receiving groove 14. The locking member 2 is rotatably installed in the receiving groove 14 by inserting both ends of the locking member's rotating shaft 22 into the rotating shaft holes 111 on both sides. One end of the elastic member 3 is connected to the first limiting part 23, and the other end of the elastic member 3 is connected to the second limiting part 12. The locking member 2 and the elastic member 3 are compactly arranged in the receiving groove 14 of the connecting member 1, reducing the size of the interlocking device 100.

[0056] Preferably, the connecting body 11 has a U-shaped structure. The bottom edges of the connecting body 11 protrude upwards to form reinforcing plates 13 connecting the two sides of the connecting body 11. A guide groove 131 is provided on the outer side of the reinforcing plate 13. The height of the reinforcing plate 13 is lower than the side height of the connecting body 11. The connecting body 11 and the two reinforcing plates 13 form the receiving groove 14. The locking shaft 22 is connected between the two sides of the connecting body 11. The two sides of the connecting body 11 are spaced apart and opposite to each other along the length direction of the contactor 400, and the two reinforcing plates 13 are spaced apart and opposite to each other along the width direction of the contactor 400. The second limiting part 12 of the connecting member 1 includes a connecting through hole 121 penetrating the bottom edge of the connecting body 11 and a second connecting shaft 122 connecting the two opposite side walls of the connecting through hole 121.

[0057] The elastic member 3 is preferably a tension spring, comprising a spring body 31 and two spring hooks 32 at both ends of the spring body 31; the spring hook 32 at one end of the elastic member 3 is hung on the first connecting shaft 232 of the locking member 2, and the spring hook 32 at the other end is hung on the second connecting shaft 122 of the coupling member 1. Of course, the elastic member 3 can also be a separate elastic member such as a torsion spring, a compression spring, a leaf spring, etc., and can also be an elastic structure integrally formed with the locking member 2 or the coupling member 1.

[0058] The second embodiment (not shown in the figure) of the interlocking device is the same as the first embodiment that the locking member 2 is rotationally arranged on the coupling member 1, and the main difference is that the locking member 2 is provided with at least two locking parts, one of the contactors 400 pushes the corresponding locking part when closing, so that the locking member 2 rotates and drives the other locking part to block the closing of the other contactor 400.

[0059] The third embodiment (not shown in the figure) of the interlocking device is mainly different from the second embodiment in the movement mode of the locking member 2, and the locking member 2 of the embodiment is linearly arranged on the coupling member 1, and the locking member 2 is provided with locking parts at both ends along the movement direction, one of the contactors 400 pushes the corresponding locking part when closing, so that the locking member 2 linearly moves and drives the other locking part to block the closing of the other contactor 400.

[0060] It should be noted that in the description of the utility model, the terms "upper", "lower", "left", "right", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used in use, and are only for the convenience of description, and do not indicate that the device or element indicated must have a particular orientation, therefore, it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third" and the like are only used for differentiation in description, and cannot be understood as indicating relative importance.

[0061] The above is a further detailed description of the utility model in combination with specific preferred embodiments, and the specific implementation of the utility model cannot be limited to these descriptions. For ordinary skilled persons in the technical field to which the utility model belongs, without departing from the concept of the utility model, a number of simple deductions or substitutions can be made, which should be regarded as falling within the protection scope of the utility model.

Claims

1. A contactor interlocking structure comprising two contactors (400) each including a housing (4) and an interlocking device (100), characterized in that: The interlocking device (100) comprises a coupling piece (1), a locking piece (2) and an elastic piece (3), the locking piece (2) is movably arranged on the coupling piece (1), and the elastic piece (3) is connected between the coupling piece (1) and the locking piece (2); half grooves (41) are respectively arranged on the bottom edges of the housings (4) of the two contactors (400) along the height direction of the contactors (400), when the housings (4) of the two contactors (400) are assembled, the side edges of the housings (4) of the two contactors (400) are at least partially abutted, and the half grooves (41) of the housings (4) of the two contactors (400) are spliced to form a mounting groove (410), and the coupling piece (1) is mounted in the mounting groove (410); When one of the contactors (400) is closed, the locking piece (2) is driven to move against the force of the elastic piece (3) to block the closing of the other contactor (400).

2. The contactor interlock structure according to claim 1, characterized by: The locking piece (2) is rotatably arranged on the coupling piece (1), and the locking piece (2) is provided with a locking portion, wherein one of the contactors (400) pushes the locking portion to block the closing of the other contactor (400) when closing.

3. The contactor interlock structure according to claim 1, characterized by: The locking piece (2) comprises a locking piece rotating shaft (22) rotatably connected with the coupling piece (1), opposite sides of the locking piece rotating shaft (22) are respectively provided with a locking protrusion (21) and a first limiting portion (23), the locking protrusion (21) serves as the locking portion, wherein one of the contactors (400) pushes the locking protrusion (21) to block the closing of the other contactor (400) when closing, and the first limiting portion (23) is used for connecting the elastic piece (3).

4. The contactor interlock structure according to claim 3, characterized by: The locking protrusion (21) is provided with two locking protrusions (21) arranged on opposite ends of the locking piece rotating shaft (22).

5. The contactor interlock structure according to claim 3 or 4, characterized by: The locking protrusion (21) is provided with two positioning faces (212) and a locking face (211) connected between the two positioning faces (212), wherein one of the contactors (400) pushes the locking face (211) to drive the locking piece (2) to rotate to block the closing of the other contactor (400) when closing, and the locking face (211) is kept from closing the other contactor (400) by acting on the corresponding positioning face (212).

6. The contactor interlock structure according to claim 5, characterized by: The locking protrusion (21) is a fan-shaped structure, the locking face (211) is an arc-shaped side of the fan-shaped structure, and the two positioning faces (212) are straight side edges on two sides of the fan-shaped structure.

7. The contactor interlock structure according to claim 3, characterized by: The coupling piece (1) comprises a coupling piece body (11) provided with a receiving groove (14), the side walls of the opposite sides of the receiving groove (14) are respectively provided with a shaft hole (111) in rotation cooperation with the locking piece shaft (22), a second limiting part (12) is arranged on the bottom wall of the receiving groove (14), the locking piece (2) is rotatably arranged in the receiving groove (14) through the two ends of the locking piece shaft (22) respectively inserted in the shaft holes (111) on the two sides, one end of the elastic piece (3) is connected with the first limiting part (23), and the other end of the elastic piece (3) is connected with the second limiting part (12).

8. The contactor interlock structure according to claim 1, characterized by: The housings (4) of the two contactors (400) are respectively provided with electromagnetic systems (5) and contact systems (6), the contact system (6) comprises a movable contact and a static contact, the movable contact is arranged on a contact support (7) driven by the electromagnetic system (5), the contact support (7) is located above the electromagnetic system (5), the interlocking device (100) is located between the electromagnetic systems (5) of the two contactors (400), the contact support (7) pushes the locking piece (2) of the interlocking device (100) through a linkage piece (8), the linkage piece (8) is located below the contact support (7) and above the interlocking device (100), the upper end of the linkage piece (8) is connected with the contact support (7), and the lower end of the linkage piece (8) is provided with a driving surface (81); when one of the contactors (400) is closed, the contact support (7) drives the linkage piece (8) to push the locking piece (2) through the driving surface (81), so that the locking piece (2) blocks the movement of the linkage piece (8) of the other contactor (400) and locks the contactor (400) in a state that cannot be closed.

9. The contactor interlock structure according to claim 8, characterized by: The driving surface (81) is obliquely arranged on the lower end of the linkage piece (8).

10. The contactor interlock structure according to claim 1, characterized by: The side walls of the half grooves (41) of the housings (4) of the two contactors (400) are respectively provided with at least one guide protrusion (42), the coupling piece (1) is provided with a guide groove (131) corresponding to the guide protrusion (42), and the length direction of the guide protrusion (42) is arranged along the height direction of the contactor (400).

11. The contactor interlock structure according to claim 10, characterized by: The guide groove (131) is a dovetail groove, and the guide protrusion (42) is a dovetail-shaped protruding rib structure.

12. The contactor interlock structure according to claim 1, characterized by: The half grooves (41) of the housings (4) of the two contactors (400) are respectively provided with at least one elastic buckle (43), and the coupling piece (1) is provided with a buckle opening (112) corresponding to the elastic buckle (43).

13. The contactor interlock structure according to claim 1, characterized by: The bottom edges of the housings (4) of the two contactors (400) are respectively provided with guide rail grooves (44), and the half grooves (41) are located in the guide rail grooves (44).

Images