Mechanically interlocked modular contactor

Abstract

The invention relates to a mechanically-interlocked modularized contactor which comprises two contactor units and a mechanical interlocking mechanism arranged between the two contactor units. The mechanical interlocking mechanism comprises a shell arranged between shells of the two contactor units, an interlocking piece rotationally arranged in the shell and a torsional spring arranged between the shell and the interlocking piece, the interlocking piece is provided with two interlocking arms which are symmetrically distributed, the two interlocking arms respectively extend out of the shell, and the torsional spring is arranged between the shell and the interlocking piece. The two movable contact frames of the two contactor units are respectively provided with a shifting groove matched with the interlocking arm, the two interlocking arms respectively penetrate through the through holes of the two contactor units and extend into the two shifting grooves of the two movable contact frames, and linkage matching of the two movable contact frames of the two contactor units and the two interlocking arms is formed. The interlocking device has the advantages of simple structure, stable and reliable performance, convenience in assembly and safety and reliability in interlocking.

Description

Technical Field

[0001] The invention relates to a modular contactor, in particular to a mechanically interlocked modular contactor. Background Art

[0002] The working mode of the contactor is to energize the coil of the contactor, and the coil generates a magnetic field. The magnetic field makes the static iron core and the moving iron core generate magnetic force and attract each other, so that the normally open contact is closed to control the conduction of the load. When the coil loses power, the magnetic force between the static iron core and the moving iron core disappears, and the moving iron core is reset under the action of the spring, and the normally open contact is disconnected. Modular contactors are control electrical appliances used to remotely connect and disconnect non-inductive or low-inductive loads, resistance furnaces, household appliances and low-inductive loads for similar purposes, household motors, etc.

[0003] In order to ensure the normal and safe operation of the existing reversible contactor group composed of two modular contactors, a mechanical interlocking function is required between the two modular contactors, that is, when any one of the modular contactors is in the on state, the other modular contactor cannot be connected, that is, it is locked in the off state. The mechanical interlocking mechanism of the existing modular contactor has a complex structural design, a large number of parts, a large space, unreliable interlocking performance, and the assembly of the mechanical interlocking mechanism and the modular contactor is relatively cumbersome. Summary of the invention

[0004] The purpose of the present invention is to overcome the defects of the prior art and provide a mechanically interlocked modular contactor with simple structure, stable and reliable performance, convenient assembly, and safe and reliable interlocking.

[0005] To achieve the above-mentioned purpose, the present invention adopts a mechanically interlocked modular contactor, including two contactor units and a mechanical interlocking mechanism arranged between the two contactor units, the mechanical interlocking mechanism including a shell arranged between the outer shells of the two contactor units, an interlocking member rotatably arranged in the shell, and a torsion spring arranged between the shell and the interlocking member, the interlocking member has two symmetrically distributed interlocking arms, the two interlocking arms respectively extend outside the shell, the two moving contact frames of the two contactor units are respectively provided with toggle grooves matching the interlocking arms, the two interlocking arms respectively pass through the through holes of the two contactor units and extend into the two toggle grooves of the two moving contact frames, and constitute the linkage cooperation between the two moving contact frames of the two contactor units and the two interlocking arms.

[0006] The beneficial effect of the above structure is that a mechanical interlocking mechanism is provided between the two contactor units, and the mechanical interlocking mechanism adopts a modular structure design, so that the modular assembly of the modular contactor can be realized. The structural design of the mechanical interlocking mechanism is simple and the volume is small. When the interlocking part rotates in the shell, it can ensure that when any one of the contactor units is in the on state, the other contactor unit cannot be connected, that is, it is locked in the off state. The interlocking reliability is higher. The torsion spring can ensure that the interlocking part can move smoothly and reliably, can flexibly perform the interlocking action, and the interlocking is safer and more reliable. Therefore, the modular contactor has the advantages of simple structure, stable and reliable performance, convenient assembly, and safe and reliable interlocking.

[0007] In particular, the two sides of the interlocking arm are respectively provided with toggle arc surfaces matching with the toggle grooves. The interlocking arm can avoid the interlocking arm and the movable contact frame from getting stuck or stuck by cooperating with the toggle arc surfaces and can ensure that the interlocking of the interlocking part and the two contactor units is more reliable.

[0008] In particular, one end of the interlocking piece has a rotating shaft portion, and two positioning holes are respectively arranged at the two ends of the corresponding rotating shaft portion in the shell, and the two ends of the rotating shaft portion are respectively inserted into the two positioning holes, and form a rotating connection and cooperation between the rotating shaft portion and the shell. The interlocking piece is connected to the shell through the rotating shaft portion, so that the assembly of the interlocking piece and the shell is convenient, and it can ensure that the interlocking piece can be flexibly rotated in the shell, which is conducive to improving the working reliability of the mechanical interlocking mechanism.

[0009] In particular, the torsion spring is sleeved on the rotating shaft, the interlocking part is provided with a limit rod matched with the torsion spring, one end of the torsion spring abuts against the limit rod, the housing is provided with a limit column matched with the torsion spring, and the other end of the torsion spring abuts against the limit column. The torsion spring is sleeved on the interlocking part, so as to facilitate the assembly of the torsion spring and the interlocking part, and the assembly is more convenient, and the torsion spring can ensure that the interlocking part can reliably perform the interlocking action, so as to improve the working reliability of the main mechanism of the mechanical interlocking.

[0010] In particular, the housing comprises a bottom shell and a cover body arranged on the bottom shell, a receiving cavity for placing the interlocking member is formed between the cover body and the bottom shell, two clamping blocks for clamping the rotating shaft are respectively arranged in the bottom shell and the cover body, clamping grooves are respectively arranged on the two clamping blocks, the positioning hole is formed between the two clamping blocks, and the bottom shell and the cover body are respectively provided with clearance holes for two interlocking arms to pass through. The bottom shell and the cover body are clamped on the rotating shaft of the interlocking member through the clamping blocks, so as to facilitate the assembly of the housing and the interlocking member, and the assembly is more convenient.

[0011] In particular, the bottom shell is provided with a snap-fitting convex strip matched with the cover body, the cover body is provided with a snap-fitting groove matched with the snap-fitting convex strip, the snap-fitting convex strip is snapped into the snap-fitting groove, and constitutes a snap-fitting of the bottom shell and the cover body, and a plurality of rivets are respectively connected between the bottom shell and the cover body. The bottom shell and the cover body are connected by snap-fitting, so as to facilitate the assembly of the mechanical interlocking mechanism and make the assembly more convenient.

[0012] In particular, hooks are provided on both sides of the housing, and holes matching the hooks are provided on the housings of the two contactor units. The hooks are engaged in the holes, and the housings of the two contactor units are engaged with each other. The housing is engaged with the housings of the two contactor units through the hooks, so that the mechanical interlocking mechanism is easily assembled with the two contactor units, and the assembly is more convenient.

[0013] In particular, multiple snap-fit ​​protrusions are respectively provided on the outer walls on both sides of the shell, and multiple snap-fit ​​grooves matching the multiple snap-fit ​​protrusions are provided on the shells of the two contact units. The multiple snap-fit ​​protrusions are snapped into the multiple snap-fit ​​grooves, and constitute the snap-fitting of the shell and the shells of the two contactor units. The shell and the shell are assembled in a snap-fitting manner, which facilitates the assembly of the mechanical interlocking mechanism and the two contactor units, and the assembly efficiency is higher.

[0014] In particular, the housing is provided with a guide rail slot, which is connected to the guide rail slots of the housings of the two contactor units. The housing of the mechanical interlocking mechanism is provided with a guide rail slot, so that the modular contactor can be installed in a guide rail manner, which is more convenient to install. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a stereogram of an embodiment of the present invention.

[0016] Figure 2 This is an exploded view of an embodiment of the present invention.

[0017] Figure 3 It is a cross-sectional view of an embodiment of the present invention.

[0018] Figure 4 It is a three-dimensional diagram of the mechanical interlocking mechanism according to an embodiment of the present invention.

[0019] Figure 5 4 is a cross-sectional view of a mechanical interlocking mechanism according to an embodiment of the present invention.

[0020] Figure 6 Schematic diagram of the internal structure of the mechanical interlocking mechanism according to an embodiment of the present invention.

[0021] Figure 7 It is a three-dimensional diagram of the interlocking parts according to the embodiment of the present invention. DETAILED DESCRIPTION

[0022] like Figures 1 to 7 As shown, the embodiment of the present invention is a mechanically interlocked modular contactor, including two contactor units 10 and a mechanical interlocking mechanism 20 arranged between the two contactor units 10, wherein the mechanical interlocking mechanism 20 includes a shell 21 arranged between the shells 11 of the two contactor units 10, an interlocking member 22 rotatably arranged in the shell 21, and a torsion spring 23 arranged between the shell 21 and the interlocking member 22, wherein the interlocking member 22 has two symmetrically distributed interlocking arms 221, and the two interlocking arms 221 extend outside the shell 21 respectively, and the two moving contact frames 12 of the two contactor units 10 are respectively provided with toggle grooves 121 matched with the interlocking arms 221, and the two interlocking arms 221 respectively pass through the through holes 100 of the two contactor units 10 and extend in the two toggle grooves 121 of the two moving contact frames 12, and constitute the linkage cooperation between the two moving contact frames 12 of the two contactor units 10 and the two interlocking arms 221. The interlocking arm 221 is provided with a toggle arc surface 2211 that matches the toggle groove 121 on both sides. The toggle arc surface of the interlocking arm matches the toggle groove to avoid the interlocking arm and the moving contact frame from getting stuck or stuck, and to ensure that the interlocking part and the two contactor units are more reliable. The interlocking part 22 has a rotating shaft portion 222 at one end, and two positioning holes 211 are respectively provided at the two ends of the corresponding rotating shaft portion 222 in the shell 21. The two ends of the rotating shaft portion 222 are respectively inserted into the two positioning holes 211, and constitute the rotational connection and cooperation between the rotating shaft portion 222 and the shell 21. The interlocking part is connected to the shell through the rotating shaft portion, so as to facilitate the assembly of the interlocking part and the shell, and to ensure that the interlocking part can rotate flexibly in the shell, which is conducive to improving the working reliability of the mechanical interlocking mechanism. The torsion spring 23 is sleeved on the rotating shaft 222, and the interlocking member 22 is provided with a limiting rod 223 matched with the torsion spring 23, one end of the torsion spring 23 abuts against the limiting rod 223, and the housing 21 is provided with a limiting column 212 matched with the torsion spring 23, and the other end of the torsion spring 23 abuts against the limiting column 212. The torsion spring is sleeved on the interlocking member, so as to facilitate the assembly of the torsion spring and the interlocking member, and the assembly is more convenient, and the torsion spring can ensure that the interlocking member can reliably perform the interlocking action, which is conducive to improving the working reliability of the mechanical interlocking main mechanism.

[0023] like Figures 2 to 7As shown, the housing 21 comprises a bottom shell 213 and a cover 214 disposed on the bottom shell 213. A receiving cavity 200 for placing the interlocking member 22 is formed between the cover 214 and the bottom shell 213. Two clamping blocks 215 for clamping the rotating shaft 222 are respectively disposed in the bottom shell 213 and the cover 214. The two clamping blocks 215 are respectively provided with clamping grooves 216. The positioning hole 211 is formed between the two clamping blocks 216. The bottom shell 213 and the cover 214 are respectively provided with clearance holes 2000 for the two interlocking arms 221 to pass through. The bottom shell and the cover are clamped on the rotating shaft of the interlocking member through the clamping blocks, thereby facilitating the assembly of the housing and the interlocking member, and making the assembly more convenient. The bottom shell 213 is provided with a snap-fitting convex strip 2131 matched with the cover body 214, and the cover body 214 is provided with a snap-fitting groove 2141 matched with the snap-fitting convex strip 2131. The snap-fitting convex strip 2131 is snapped into the snap-fitting groove 2141, and constitutes the snap-fitting of the bottom shell 213 and the cover body 214. A plurality of rivets 2001 are respectively connected between the bottom shell 213 and the cover body 214. The bottom shell and the cover body are connected by snap-fitting, so as to facilitate the assembly of the mechanical interlocking mechanism and make the assembly more convenient. The shell 21 is provided with hooks 217 on both sides, and the shells 11 of the two contactor units 10 are provided with snap-fitting holes 111 matched with the hooks 217. The hooks 217 are snapped into the snap-fitting holes 111, and constitute the snap-fitting of the shell 21 and the shells 11 of the two contactor units 10. The shell is engaged with the outer shells of the two contactor units by means of a hook, so as to facilitate the assembly of the mechanical interlocking mechanism and the two contactor units, and the assembly is more convenient. A plurality of snap-in protrusions 218 are respectively arranged on the outer walls on both sides of the shell 21, and a plurality of snap-in grooves 112 matching with the plurality of snap-in protrusions 218 are arranged on the outer shells 11 of the two contact units 10, and the plurality of snap-in protrusions 218 are engaged in the plurality of snap-in grooves 112, and constitute the snap-in fit between the shell 21 and the outer shells 11 of the two contactor units 10. The shell and the outer shell are assembled by snap-in fit, which facilitates the assembly of the mechanical interlocking mechanism and the two contactor units, and the assembly efficiency is higher. A guide rail slot 219 is arranged on the shell 21, and the guide rail slot 219 is connected to the guide rail slot 113 of the outer shells 11 of the two contactor units 10. A guide rail slot is arranged on the shell of the mechanical interlocking mechanism, so that the guide rail installation of the modular contactor can be realized, and the installation is more convenient.

[0024] A mechanical interlocking mechanism is provided between the two contactor units. The mechanical interlocking mechanism adopts a modular structure design, so that the modular assembly of the modular contactor can be realized. The mechanical interlocking mechanism has a simple structural design and a small volume. When the interlocking part rotates in the housing, it can ensure that when any one of the contactor units is in the on state, the other contactor unit cannot be connected, that is, it is locked in the off state. The interlocking reliability is higher. The torsion spring can ensure that the interlocking part can move smoothly and reliably, can flexibly perform the interlocking action, and the interlocking is safer and more reliable. Therefore, the modular contactor has the advantages of simple structure, stable and reliable performance, convenient assembly, and safe and reliable interlocking.

Claims

1. A mechanically interlocked modular contactor, characterized in that: It includes two contactor units and a mechanical interlocking mechanism arranged between the two contactor units. The mechanical interlocking mechanism includes a shell arranged between the outer shells of the two contactor units, an interlocking member rotatably arranged in the shell, and a torsion spring arranged between the shell and the interlocking member. The interlocking member has two symmetrically distributed interlocking arms, and the two interlocking arms extend outside the shell respectively. The two movable contact frames of the two contactor units are respectively provided with toggle grooves matching the interlocking arms. The two interlocking arms respectively pass through the through holes of the two contactor units and extend into the two toggle grooves of the two movable contact frames, and constitute the linkage cooperation between the two movable contact frames of the two contactor units and the two interlocking arms.

2. The mechanically interlocked modular contactor according to claim 1, characterized in that: The two sides of the interlocking arm are respectively provided with toggle arc surfaces matching with the toggle grooves.

3. The mechanically interlocked modular contactor according to claim 1 or 2, characterized in that: One end of the interlocking piece has a rotating shaft portion, and two positioning holes are respectively arranged at the two ends of the rotating shaft portion in the shell. The two ends of the rotating shaft portion are respectively inserted into the two positioning holes to form a rotating connection between the rotating shaft portion and the shell.

4. The mechanically interlocked modular contactor according to claim 3, characterized in that: The torsion spring is sleeved on the rotating shaft, the interlocking part is provided with a limiting rod matched with the torsion spring, one end of the torsion spring abuts against the limiting rod, the shell is provided with a limiting column matched with the torsion spring, and the other end of the torsion spring abuts against the limiting column.

5. The mechanically interlocked modular contactor according to claim 3, characterized in that: The shell body includes a bottom shell and a cover body arranged on the bottom shell, a receiving cavity for placing the interlocking part is formed between the cover body and the bottom shell, two clamping blocks for clamping the rotating shaft part are respectively arranged in the bottom shell and the cover body, clamping grooves are respectively arranged on the two clamping blocks, a positioning hole is formed between the two clamping blocks, and the bottom shell and the cover body are respectively provided with clearance holes for two interlocking arms to pass through.

6. The mechanically interlocked modular contactor according to claim 5, characterized in that: The bottom shell is provided with a snap-fitting convex strip matched with the cover body, and the cover body is provided with a snap-fitting groove matched with the snap-fitting convex strip. The snap-fitting convex strip is snapped into the snap-fitting groove and constitutes a snap-fitting fit between the bottom shell and the cover body. A plurality of rivets are respectively connected between the bottom shell and the cover body.

7. The mechanically interlocked modular contactor according to claim 1 or 2, characterized in that: The shell is provided with hooks on both sides respectively, and the shells of the two contactor units are provided with holes matched with the hooks. The hooks are engaged in the holes and constitute the snap fit between the shell and the shells of the two contactor units.

8. The mechanically interlocked modular contactor according to claim 1 or 2, characterized in that: A plurality of snap-fitting protrusions are respectively arranged on the outer walls on both sides of the shell, and a plurality of snap-fitting grooves matching with the plurality of snap-fitting protrusions are arranged on the outer shells of the two contact units. The plurality of snap-fitting protrusions are snapped into the plurality of snap-fitting grooves, and constitute a snap-fitting fit between the shell and the outer shells of the two contactor units.

9. The mechanically interlocked modular contactor according to claim 1 or 2, characterized in that: The shell is provided with a guide rail slot, and the guide rail slot is communicated with the guide rail slots of the shells of the two contactor units.

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