Electromagnetic relay with breaking structure convenient to replace

Abstract

The invention discloses an electromagnetic relay convenient for replacing a breaking structure, and relates to the technical field of electromagnetic relays. The device comprises a housing, the housing is arranged in a rectangular shape, the bottom of the housing is provided with a plugging port, and the side surface of the housing is provided with a mounting port adjacent to the plugging port; the side plate is detachably connected to the mounting opening, an electromagnetic coil is fixedly connected to the side, facing the interior of the shell, of the side plate, and an elastic iron sheet half wrapping the upper side of the electromagnetic coil is fixedly connected to the side plate; and the breaking assembly comprises a bottom block which is inserted and clamped in the insertion port of the shell, and an adjustable connection opening and closing pin and a coil pin are installed on the bottom block in a penetrating manner. The electromagnetic relay is divided into three external structures, namely the shell, the side plate and the bottom block, so that a complete mounting cavity can be formed, and the shell, the side plate and the bottom block are detachably connected, so that the cavity is convenient to open to dismount and replace the breaking assembly.

Description

Technical Field

[0001] The present application relates to the technical field of electromagnetic relays, and in particular to an electromagnetic relay having a disconnection structure that is easy to replace. Background Art

[0002] An electromagnetic relay is an electronic control device that has a control system (also known as an input circuit) and a controlled system (also known as an output circuit). It is usually used in automatic control circuits. It is actually an "automatic switch" that uses a smaller current and a lower voltage to control a larger current and a higher voltage.

[0003] Electromagnetic relays are mainly divided into components such as electromagnets, armatures, and disconnecting structures. The disconnecting structure includes moving contacts and static contacts. Since the two contacts need to frequently touch each other for power-on and separation operations, arc effects are easily generated, resulting in electric shock damage and poor conductivity. The existing disconnecting structure of electromagnetic relays is not convenient to replace. When the contacts are damaged, the entire electromagnetic relay can only be replaced, which is costly.

[0004] Therefore, the present invention provides an electromagnetic relay with a disconnecting structure that is easy to replace. Summary of the invention

[0005] The purpose of the present application is to solve the problems in the above-mentioned background technology and to provide an electromagnetic relay with a disconnecting structure that is easy to replace.

[0006] In order to achieve the above-mentioned purpose, this application specifically adopts the following technical solutions:

[0007] An electromagnetic relay with a breaking structure that is easy to replace, comprising:

[0008] The housing is rectangular and has a plug interface at the bottom, and a mounting opening adjacent to the plug interface is configured on the side of the housing;

[0009] A side plate is detachably connected to the mounting opening, the electromagnetic coil is fixedly connected to the side of the side plate facing the inside of the housing, and an elastic iron sheet half-wrapped on the upper side of the electromagnetic coil is fixedly connected to the side plate;

[0010] The disconnecting assembly comprises a bottom block which is inserted and connected in the plug-in interface of the shell, wherein the bottom block is penetrated by adjustable switch pins and coil pins, the coil pins are connected to the electromagnetic coil through wires, and one side of the elastic iron sheet is connected to a common electric contact pin which is movably inserted in the adjustable switch pin through an insulating plate.

[0011] Furthermore, a convex piece located in the installation opening is constructed on the top of the shell, and a connecting bolt threadedly connected in the convex piece is installed through the side plate.

[0012] Furthermore, the elastic iron sheet includes an L-shaped sheet, one end of the L-shaped sheet is horizontally arranged and connected to the side plate, the other end of the L-shaped sheet is vertically arranged and a plug-in block is fixedly connected to the top of the sheet, a sleeve is constructed at the top of the shell and is plugged into the plug-in block, and the adsorption end of the electromagnetic coil is horizontally arranged relative to the vertical section of the L-shaped sheet.

[0013] Furthermore, two plug-in plates arranged opposite to each other are constructed on the bottom block, and snap-in blocks arranged opposite to each other are constructed on the tops of the two plug-in plates, and through grooves engaged with the snap-in blocks are constructed on both sides of the shell.

[0014] Furthermore, a rectangular groove is constructed on the upper surface of the bottom block, and the adjustable opening and closing pin includes a slider movably inserted in the rectangular groove, two fixed pins passing through the bottom block are inserted in the rectangular groove, and two inverted T-shaped pin pieces arranged opposite to the fixed pins are installed on the slider, and an adjusting member for driving the slider to move horizontally is installed on the bottom block.

[0015] Furthermore, both sides of the inner wall of the shell are arrayed along its length direction with multiple L-shaped vertical plates for socketing plug boards, and a resistance bar is connected between the bottoms of two of the L-shaped vertical plates on the same side, and the resistance bar resists the upper surface of the slider.

[0016] Furthermore, convex strips are constructed at the top corners at both ends of the sliding block, and stepped grooves for the convex strips to slide are constructed at the top corners at both ends of the rectangular groove.

[0017] Furthermore, the adjusting member comprises a connecting sleeve fixedly mounted on one end of the sliding block, an adjusting bolt inserted in a rectangular groove is threadedly penetrated through one end of the bottom block, and the end of the adjusting bolt is tightly inserted in the connecting sleeve.

[0018] Furthermore, the adjusting bolt passes through the side plate.

[0019] Furthermore, the common contact pin comprises a power connection piece inserted between two T-shaped pin pieces, the power connection piece is configured with a through slot, an I-shaped card block is detachably connected in the through slot, and contact blocks are configured on both sides of the I-shaped card block.

[0020] The beneficial effects of this application are as follows:

[0021] The present application forms a complete installation chamber by dividing the electromagnetic relay into three external structures: a shell, a side panel and a bottom block. The shell, the side panel and the bottom block are all detachably connected, making it convenient to open the chamber to disassemble and replace the disconnecting components. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional structural diagram of this application;

[0023] Figure 2 It is an exploded view of the three-dimensional structure of this application;

[0024] Figure 3 It is a half-section diagram of the three-dimensional structure of the present application;

[0025] Figure 4 It is a partial cross-sectional view of the three-dimensional structure of the present application;

[0026] Figure 5 It is a half-section diagram of the three-dimensional structure of the separated components of the present application;

[0027] Figure 6 This application Figure 5 The enlarged view of point A in the middle;

[0028] Figure 7 This is a three-dimensional structural diagram of the common electric shock pin of this application;

[0029] Reference numerals: 1, housing; 101, plug interface; 102, mounting port; 103, convex piece; 104, sleeve; 105, through slot; 106, L-shaped vertical plate; 107, abutment strip; 2, side plate; 201, connecting bolt; 3, electromagnetic coil; 4, elastic iron sheet; 401, L-shaped sheet; 402, plug-in block; 5, disconnecting assembly; 501, bottom block; 5011, plug-in plate; 5012, clamping block; 5013, rectangular slot; 5013 1. Step groove; 502. Adjustable opening and closing pin; 5021. Slider; 50211. Raised strip; 5022. Fixed pin; 5023. Inverted T-shaped pin piece; 503. Coil pin; 504. Wire; 505. Insulating plate; 506. Common contact pin; 5061. Power connection piece; 5062. Through groove; 5063. I-shaped block; 5064. Contact block; 6. Adjustment piece; 601. Connecting sleeve; 602. Adjustment bolt. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0031] like Figure 1-Figure 3 As shown, an electromagnetic relay with a convenient replacement breaking structure proposed in one embodiment of the present application includes:

[0032] The housing 1 is rectangular and has a plug-in port 101 at the bottom. The side of the housing 1 has a mounting port 102 adjacent to the plug-in port 101.

[0033] The side plate 2 is detachably connected to the mounting opening 102. The electromagnetic coil 3 is fixedly connected to the side of the side plate 2 facing the inside of the housing 1. The elastic iron sheet 4 half-wrapped on the upper side of the electromagnetic coil 3 is fixedly connected to the side plate 2. It should be noted that the side plate 2 adopts an n-type structure, with two sides of the side plate being a convex plate and the middle being a concave plate. The four corners of the convex plate are configured with through holes for connecting screws, which can facilitate the connection of the device as a whole with other components, thereby increasing the flexibility of the device;

[0034] The disconnecting component 5 comprises a bottom block 501 which is inserted and connected to the plug interface 101 of the shell 1, and an adjustable switch pin 502 and a coil pin 503 are installed on the bottom block 501, and the coil pin 503 is connected to the electromagnetic coil 3 through a wire 504, and one side of the elastic iron sheet 4 is connected to a common electric contact pin 506 which is movably inserted in the adjustable switch pin 502 through an insulating plate 505, wherein the adjustable switch pin 502 and the coil pin 503 are both installed on the bottom block 501, and the bottom block 501 and the shell 1 are in a plug-in relationship, which can be easily disassembled, so as to facilitate opening the shell 1 and replacing the adjustable switch pin 502 therein, thereby increasing the convenience of the device, and there is no need to replace the entire device or the electromagnetic coil 3, thereby saving costs.

[0035] like Figure 2 As shown, in some embodiments, a protrusion 103 located in the installation port 102 is constructed on the top of the housing 1, and a connecting bolt 201 threadedly connected to the protrusion 103 is installed through the side panel 2. The side panel 2 is detachably connected to the side of the housing 1 through the connecting bolt 201, which makes it convenient to open the housing 1 and remove the electromagnetic coil 3 therein to facilitate maintenance operations thereon, thereby increasing the convenience of the device.

[0036] like Figure 3 As shown, in some embodiments, the elastic iron sheet 4 includes an L-shaped sheet 401, one end of the L-shaped sheet 401 is horizontally arranged and connected to the side panel 2, the other end of the L-shaped sheet 401 is vertically arranged and a plug-in block 402 is fixedly connected to its top, and a sleeve 104 is constructed on the top of the shell 1 to be plugged into the plug-in block 402, and the adsorption end of the electromagnetic coil 3 is horizontally arranged relative to the vertical section of the L-shaped sheet 401. The elastic iron sheet 4 is set as the L-shaped sheet 401, so that it can be detached together with the side panel 2, and the plug-in block 402 and the sleeve 104 are set. When the side panel 2 is installed, the L-shaped sheet 401 is elastic and can bend downward, so that the plug-in block 402 can be vertically inserted into the sleeve 104, so that the connection point between them and the connecting bolt 201 can form two connection points, thereby increasing the stability of the connection between the side panel 2 and the shell 1, preventing the side panel 2 from shaking and detaching easily, and increasing safety.

[0037] like Figure 1-Figure 2As shown, in some embodiments, two relatively arranged plug plates 5011 are constructed on the bottom block 501, and the tops of the two plug plates 5011 are constructed with snap-in blocks 5012 arranged back to back. Both sides of the shell 1 are constructed with through grooves 105 that engage with the snap-in blocks 5012. It should be noted that the snap-in blocks 5012 adopt a triangular inclined block structure, and the plug plates 5011 are made of elastic plastic material, with the inclined end arranged upward and the flat end arranged downward. When the plug plates 5011 are vertically inserted upward into the shell 1, they can be snap-fitted with each other when entering the through groove 105 on the shell 1 to fix the position of the plug plates 5011. When the bottom block 501 needs to be disassembled, the two snap-in blocks 5012 can be squeezed inwardly through the through groove 105 to make them close to each other, thereby disengaging from the through groove 105, which facilitates the disengagement operation of the bottom block 501 and increases the convenience of the device.

[0038] like Figure 2-Figure 5 As shown, in some embodiments, a rectangular groove 5013 is constructed on the upper surface of the bottom block 501, and the adjustable opening and closing pin 502 includes a slider 5021 movably inserted in the rectangular groove 5013, and two fixed pins 5022 that penetrate the bottom block 501 are inserted in the rectangular groove 5013. Two inverted T-shaped pin pieces 5023 that are arranged opposite to the fixed pins 5022 are installed on the slider 5021. The fixed pin 5022 has a positive T-shaped structure, and its top is in conflict with the inverted T-shaped pin piece 5023, so as to increase the contact area and realize smooth circuit docking. The bottom block 501 is equipped with a driving device for sliding. The block 5021 is an adjusting member 6 for horizontal movement. It should be noted that the slider 5021 is vertically inserted in the rectangular groove 5013 and can slide horizontally in the rectangular groove 5013 for a certain distance. The two inverted T-shaped pin pieces 5023 thereon serve as static pins for contacting the common electric contact pin 506. One of the inverted T-shaped pin pieces 5023 is a normally open pin, and the other is a normally closed pin. The normal contact between the two inverted T-shaped pin pieces 5023 and the common electric contact pin 506 can be switched by horizontal sliding of the slider 5021, and the normally open pin can be converted into a normally closed pin, so as to increase the flexibility of the device.

[0039] like Figure 4 As shown, in some embodiments, both sides of the inner wall of the shell 1 are arrayed along its length direction with a plurality of L-shaped vertical plates 106 for socketing the plug board 5011, and a resistance bar 107 is connected between the bottoms of two of the L-shaped vertical plates 106 on the same side, and the resistance bar 107 resists against the upper surface of the slider 5021. By arranging the L-shaped vertical plates 106 on the shell 1, not only can the plug board 5011 be socketed and fixed, and the contact area therebetween can be increased, thereby increasing the friction and increasing the stability of the connection, but on the other hand, the resistance bar 107 can also be used to limit the upper side of the slider 5021 to prevent the slider 5021 from escaping from the rectangular groove 5013, thereby increasing safety.

[0040] like Figure 5 As shown, in some embodiments, convex strips 50211 are constructed at the top corners at both ends of the slider 5021, and stepped grooves 50131 for the sliding of the convex strips 50211 are constructed at the top corners at both ends of the rectangular groove 5013. The convex strips 50211 and the stepped grooves 50131 are arranged to slide together, and the empty cavity in the rectangular groove 5013 can be covered and sealed to prevent dust from entering and affecting the contact connection between the inverted T-shaped pin piece 5023 and the fixed pin 5022, thereby increasing safety.

[0041] like Figure 2 and Figure 6 As shown, in some embodiments, the adjusting member 6 includes a connecting sleeve 601 fixedly installed at one end of the slider 5021, and an adjusting bolt 602 inserted in the rectangular groove 5013 is threaded through one end of the bottom block 501, and the end of the adjusting bolt 602 is tightly inserted in the connecting sleeve 601. The threaded cooperation between the adjusting bolt 602 and the bottom block 501 can realize the push-pull operation of the slider 5021. It should be noted that a plug post is constructed at the end of the adjusting bolt 602, and a rubber convex ring is fixedly connected to the surface of the plug post, and a ring groove for clamping the rubber convex ring is constructed in the connecting sleeve 601. When the slider 5021 moves to the end of the rectangular groove 5013 away from the adjusting bolt 602, the plug post at the end of the adjusting bolt 602 will continue to be inserted into the connecting sleeve 601 until the rubber convex ring is engaged with the ring groove, so as to facilitate the adjusting bolt 602 to pull the slider 5021 to move in the opposite direction. Such a structure facilitates the detachment of the adjusting bolt 602 and increases the flexibility of the device.

[0042] like Figure 2-Figure 3 As shown, in some embodiments, the adjusting bolt 602 passes through the side panel 2, and the adjusting bolt 602 can be detachably arranged, so that after tightly contacting the slider 5021, the side panel 2 can be contacted and fixed at the same time, thereby increasing the fixing points of the side panel 2 and improving the stability of the structure.

[0043] like Figure 7 As shown, in some embodiments, the common contact pin 506 includes a connecting piece 5061 inserted between two inverted T-shaped pin pieces 5023, and a through slot 5062 is constructed on the connecting piece 5061. An I-shaped card block 5063 is detachably connected to the through slot 5062, and contact blocks 5064 are constructed on both sides of the I-shaped card block 5063. It should be noted that the through slot 5062 is rectangular, and the I-shaped card block 5063 is also rectangular. It can horizontally penetrate the through slot 5062 and then rotate, so that the grooves at both ends of the I-shaped card block 5063 can be sleeved on the connecting piece 5061. The sleeve connection between the groove and the connecting piece 5061 is a tight sleeve connection relationship, and the friction force is used to limit the position, and the common contact pin 506 is divided into a fixed connecting piece 5061 and a detachable contact block 5064. Only the contact block 5064 can be replaced, which increases the flexibility of the device and saves costs.

[0044] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An electromagnetic relay with a convenient replacement breaking structure, characterized in that: include: A housing (1), the housing (1) being arranged in a rectangular shape and having a plug interface (101) configured at the bottom, and a mounting opening (102) configured at the side of the housing (1) and arranged adjacent to the plug interface (101); A side plate (2) is detachably connected to the mounting opening (102); the electromagnetic coil (3) is fixedly connected to the side of the side plate (2) facing the inside of the housing (1); and an elastic iron sheet (4) half-wrapped around the upper side of the electromagnetic coil (3) is fixedly connected to the side plate (2); The disconnecting assembly (5) comprises a bottom block (501) inserted and clamped in the plug interface (101), the bottom block (501) is penetrated by an adjustable switch pin (502) and a coil pin (503), the coil pin (503) is connected to the electromagnetic coil (3) via a wire (504), and one side of the elastic iron sheet (4) is connected to a common electric contact pin (506) movably inserted in the adjustable switch pin (502) via an insulating plate (505).

2. The electromagnetic relay with easy-to-replace disconnection structure according to claim 1, characterized in that: The top of the housing (1) is provided with a convex piece (103) located in the installation opening (102), and a connecting bolt (201) threadedly connected in the convex piece (103) is installed through the side plate (2).

3. The electromagnetic relay with easy-to-replace disconnection structure according to claim 1, characterized in that: The elastic iron sheet (4) comprises an L-shaped sheet (401), one end of the L-shaped sheet (401) is arranged horizontally and connected to the side plate (2), the other end of the L-shaped sheet (401) is arranged vertically and a plug-in block (402) is fixedly connected to the top thereof, a sleeve (104) is arranged at the top of the housing (1) and is plugged into the plug-in block (402), and the adsorption end of the electromagnetic coil (3) is arranged horizontally opposite to the vertical section of the L-shaped sheet (401).

4. The electromagnetic relay with an easy-to-replace disconnection structure according to claim 1, characterized in that: The bottom block (501) is provided with two plugging plates (5011) arranged opposite to each other, the tops of the two plugging plates (5011) are provided with snap-fit ​​blocks (5012) arranged opposite to each other, and both sides of the housing (1) are provided with through grooves (105) snap-fitted with the snap-fit ​​blocks (5012).

5. The electromagnetic relay with easy-to-replace disconnection structure according to claim 1, characterized in that: The upper surface of the bottom block (501) is provided with a rectangular groove (5013); the adjustable opening and closing pin (502) comprises a slider (5021) movably inserted in the rectangular groove (5013); two fixed pins (5022) penetrating the bottom block (501) are inserted in the rectangular groove (5013); two inverted T-shaped pin pieces (5023) arranged vertically opposite to the fixed pins (5022) are installed on the slider (5021); and an adjusting member (6) for driving the slider (5021) to move horizontally is installed on the bottom block (501).

6. The electromagnetic relay with easy-to-replace disconnection structure according to claim 4, characterized in that: Both sides of the inner wall of the housing (1) are arrayed along the length direction with a plurality of L-shaped vertical plates (106) for receiving the plug board (5011), and a contact strip (107) is connected between the bottoms of two of the L-shaped vertical plates (106) on the same side, and the contact strip (107) contacts the upper surface of the slider (5021).

7. The electromagnetic relay with an easily replaceable disconnection structure according to claim 5, characterized in that: The top corners at both ends of the slider (5021) are both constructed with convex strips (50211), and the top corners at both ends of the rectangular groove (5013) are both constructed with stepped grooves (50131) for the convex strips (50211) to slide.

8. The electromagnetic relay with an easily replaceable disconnecting structure according to claim 5, characterized in that: The adjusting member (6) comprises a connecting sleeve (601) fixedly mounted on one end of the sliding block (5021); an adjusting bolt (602) is threadedly penetrated through one end of the bottom block (501) and inserted into the rectangular groove (5013); and the end of the adjusting bolt (602) is tightly inserted into the connecting sleeve (601).

9. The electromagnetic relay with an easy-to-replace disconnection structure according to claim 8, characterized in that: The adjusting bolt (602) passes through the side plate (2).

10. The electromagnetic relay with an easily replaceable disconnection structure according to claim 5, characterized in that: The common contact pin (506) comprises a power connection sheet (5061) inserted between two inverted T-shaped pin sheets (5023), the power connection sheet (5061) is provided with a through slot (5062), an I-shaped card block (5063) is detachably connected in the through slot (5062), and contact blocks (5064) are provided on both sides of the I-shaped card block (5063).

Images