Electromagnetic relay with LED indicator

Abstract

The utility model is specifically related to a kind of electromagnetic relay with LED indicating lamp, including the base and transparent cover of constituting shell, and electromagnetic mechanism, contact mechanism and LED indicating lamp being arranged in the shell, the electromagnetic mechanism includes coil former, electromagnetic coil being wound on coil former, electromagnetic core being arranged in the middle cavity of coil former and armature being linked with moving contact, LED indicating lamp includes lamp holder and two lamp pins, coil former includes winding column part and upper insertion part being connected to the upper end of winding column part, two vertical first jack holes are provided in upper insertion part corresponding lamp pin, lamp pin is connected in first jack hole and its lower end is connected with electromagnetic coil through first jack hole, LED indicating lamp pin is directly used as lead wire and connected with electromagnetic coil in winding process, without setting pin, thereby reducing a kind of material and a processing procedure, improve connection reliability.

Description

Technical Field

[0001] This utility model relates to the field of relay technology, specifically to an electromagnetic relay with an LED indicator. Background Technology

[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 commonly used in automatic control circuits. Essentially, it is an "automatic switch" that uses a smaller current and lower voltage to control a larger current and higher voltage. Therefore, it plays a role in automatic adjustment, safety protection, and circuit switching in circuits.

[0003] Electromagnetic relays have a relatively simple structure, mainly consisting of a housing, a coil frame inside the housing, an electromagnetic coil wound on the coil frame, an electromagnet threaded through the coil frame, an armature, a spring, and moving and stationary contacts. When a power source is connected or a certain voltage is applied across the electromagnet coil, a current flows through the coil, generating an electromagnetic effect. The armature, attracted by the electromagnetic force, overcomes the tension of the return spring and is drawn towards the iron core, causing the moving contact to engage with the stationary contact. When the coil is de-energized, the electromagnetic attraction disappears, and the armature returns to its original position under the spring's reaction force, releasing the moving contact from the stationary contact, thus achieving the purpose of connecting and disconnecting the circuit. In practical applications, electromagnetic relays can be used to control high-voltage, high-current operating circuits with low-voltage, low-current control circuits, enabling remote control and production automation. Therefore, electromagnetic relays are widely used in automatic control (such as control circuits in refrigerators, automobiles, elevators, and machine tools) and communication fields.

[0004] The electromagnetic relay has two pins at the bottom. The coil frame has pins as leads, and the two ends of the electromagnetic coil are wound around the two pins to achieve electrical connection. When the power is turned on, the electromagnetic coil is energized and generates an electromagnetic effect. To facilitate observation of the relay's operating status, an LED is usually included to indicate whether the electromagnetic relay is connected to the circuit. The LED's lead is electrically connected to the lead pin, allowing the LED and coil to operate simultaneously. However, using pins as leads increases the number of components and processing steps. Therefore, it is necessary to provide an electromagnetic relay with a more streamlined structure and process, incorporating an LED indicator. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings and deficiencies of the existing technology and to provide an electromagnetic relay with an LED indicator.

[0006] The technical solution adopted by this utility model is as follows: An electromagnetic relay with an LED indicator light includes a base and a transparent cover forming a housing, and an electromagnetic mechanism, a contact mechanism, and an LED indicator light disposed within the housing. The electromagnetic mechanism drives the moving contact and the stationary contact in the contact mechanism to connect or disconnect. The electromagnetic mechanism includes a coil frame, an electromagnetic coil wound on the coil frame, an electromagnet core disposed in the central cavity of the coil frame, and an armature linked to the moving contact. The LED indicator light includes a lamp head and two lamp feet. The coil frame includes a winding post and an upper insertion part connected to the upper end of the winding post. The upper insertion part has two vertically arranged first insertion holes corresponding to the lamp feet. The lamp feet are connected to the first insertion holes and their lower ends pass through the first insertion holes to connect and cooperate with the electromagnetic coil.

[0007] Preferably, the lamp base is an integral part including an L-shaped structure, the L-shaped structure including an L-shaped horizontal part and an L-shaped vertical part connected together, the lower end of the L-shaped vertical part passing through the first insertion hole, and the L-shaped horizontal part connecting and cooperating with the lamp head and abutting against the upper end of the upper insertion part.

[0008] Preferably, the portion of the lamp base extending out of the first socket has a first straight state that is parallel to the portion inside the first socket and a first bent state that is perpendicular to the portion inside the first socket.

[0009] Preferably, the lamp base is tightly fitted with the first socket.

[0010] Preferably, the electromagnet core includes a first core and a second core from top to bottom. The second core is adapted to the size of the central cavity of the coil frame. The size of the first core is larger than the size of the central cavity of the coil frame. The second core is located inside the central cavity of the coil frame, and the first core is located outside the central cavity of the coil frame and abuts against the upper end of the coil frame.

[0011] Preferably, the bottom of the housing is provided with two pins, which are connected and engaged with the electromagnetic coil.

[0012] Preferably, a suppression diode is connected between the two pins.

[0013] Preferably, the coil frame further includes a lower insertion part connected to the lower end of the winding post, wherein the lower insertion part has a slot on one side. The plug includes a connecting insert and a connecting foot. The connecting insert includes a vertical piece, a first horizontal piece, and a second horizontal piece. The first horizontal piece and the second horizontal piece are connected to the vertical piece and arranged in parallel. The first horizontal piece is located in the slot and is inserted into it. The second horizontal piece is located at the lower end of the lower insertion part.

[0014] Preferably, the upper and lower ends of the first horizontal piece include an insertion plane that fits with the slot gap and an abutment arc surface that fits tightly with the slot.

[0015] Preferably, the pin further includes a wrapping flap, one end of which is connected to the vertical piece and bent relative to that end to have a second straight state that is straight with the vertical piece and a second bent position that is bent downward to the side of the insertion part and perpendicular to the vertical piece.

[0016] The beneficial effects of this utility model are as follows: In the winding process, the LED indicator lamp pin is directly used as the lead wire to connect to the electromagnetic coil, eliminating the need for pins, thereby reducing one material and one processing step and improving the connection reliability. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, obtaining other drawings based on these drawings without creative effort still falls within the scope of this utility model.

[0018] Figure 1 This is a perspective structural diagram of an embodiment of the present utility model; Figure 2 This is a perspective view of the present invention with the shell removed. Figure 3 This is a left view of the structure of this utility model embodiment with the shell removed; Figure 4 Top view showing the LED indicator, coil frame, electromagnet core, and pin connections; Figure 5 for Figure 4 Cross-sectional view at point AA; Figure 6 for Figure 5 Enlarged view of the structure at point C; Figure 7 for Figure 4 Cross-sectional view at point BB; Figure 8 Front view of LED indicator, coil frame, electromagnet core, and pin connection; Figure 9 for Figure 8 Cross-sectional view at point DD; Figure 10 for Figure 9 Enlarged view of the structure at point E in the middle; In the diagram, 1 is the housing; 2 is the LED indicator; 5 is the pin; 6 is the suppressor diode; 11 is the base; 12 is the transparent cover; 21 is the lamp holder; 22 is the lamp foot; 31 is the moving contact; 32 is the stationary contact; 41 is the coil frame; 42 is the electromagnet core; 43 is the armature; 51 is the connecting insert; 52 is the connecting foot; 53 is the winding flap; 221 is the L-shaped horizontal part; 222 is the L-shaped vertical part; 411 is the winding column part; 412 is the insertion part; 413 is the lower insertion part; 421 is the first core part; 422 is the second core part; 511 is the vertical piece; 512 is the first horizontal piece; 513 is the second horizontal piece; 4121 is the first insertion hole; 4131 is the slot; 5121 is the insertion plane; 5122 is the abutment arc surface. Detailed Implementation

[0019] To make the objectives, technical solutions and advantages of this utility model clearer, the utility model will be described in further detail below with reference to the accompanying drawings.

[0020] It should be noted that all uses of "first" and "second" in the embodiments of this utility model are for the purpose of distinguishing two entities or parameters with the same name but different names. It is clear that "first" and "second" are only for the convenience of expression and should not be construed as limiting the embodiments of this utility model. Subsequent embodiments will not explain this in detail.

[0021] The directional and positional terms used in this utility model, such as "up," "down," "front," "back," "left," "right," "inner," "outer," "top," "bottom," and "side," are merely for reference to the accompanying drawings. Therefore, the directional and positional terms used are for the purpose of explaining and understanding this utility model, and not for limiting the scope of protection of this utility model.

[0022] like Figures 1 to 10 As shown in the figure, an electromagnetic relay with an LED indicator light is provided in an embodiment of this utility model. It includes a base 11 and a transparent cover 12 forming a housing 1, and an electromagnetic mechanism, a contact mechanism, and an LED indicator light 2 disposed within the housing 1. The electromagnetic mechanism drives the moving contact 31 and the stationary contact 32 in the contact mechanism to connect or disconnect. The electromagnetic mechanism includes a coil frame 41, an electromagnetic coil wound on the coil frame 41, an electromagnet core 42 disposed in the central cavity of the coil frame 41, and an armature 43 linked to the moving contact 31. The LED indicator 2 includes a lamp head 21 and two lamp feet 22. The coil frame 41 includes a winding post 411 and an upper insertion part 412 connected to the upper end of the winding post 411. The upper insertion part 412 is provided with two vertically arranged first insertion holes 4121 corresponding to the lamp feet 22. The lamp feet 22 are connected to the first insertion holes 4121 and their lower ends pass through the first insertion holes 4121 to connect and cooperate with the electromagnetic coil.

[0023] This setup allows the LED indicator light pins to be directly connected to the electromagnetic coil as leads during the winding process, eliminating the need for pins. This reduces one material and one processing step, improving connection reliability.

[0024] The lamp base 22 is an integral part including an L-shaped structure. The L-shaped structure includes an L-shaped horizontal part 221 and an L-shaped vertical part 222 connected to each other. The lower end of the L-shaped vertical part 222 passes through the first insertion hole 4121. The L-shaped horizontal part 221 is connected and cooperates with the lamp head 21 and abuts against the upper end of the upper insertion part 412.

[0025] With this design, the L-shaped horizontal section forms an automatic positioning mark during the insertion of the lamp base into the first socket, while also improving the stability of the connection between the lamp base and the upper insertion part.

[0026] The portion of the lamp base 22 extending out of the first socket 4121 is bent into a first straight state that is parallel to the portion located inside the first socket 4121 and a first bent state that is perpendicular to the portion located inside the first socket 4121.

[0027] During assembly, with the lamp base in the first straight position, assemble the LED indicator light with the upper insertion part, bend the lamp base to the first bent position, and then wind the wire around it. After winding the wire, straighten it back to the first straight position.

[0028] The lamp base 22 is tightly fitted with the first socket 4121.

[0029] This design improves the stability of the connection between the LED indicator and the upper insertion part.

[0030] The electromagnet core 42 includes a first core 421 and a second core 422 from top to bottom. The second core 422 is adapted to the size of the central cavity of the coil frame 41. The size of the first core 421 is larger than the size of the central cavity of the coil frame 41. The second core 422 is located inside the central cavity of the coil frame 41, and the first core 421 is located outside the central cavity of the coil frame 41 and abuts against the upper end of the coil frame 41.

[0031] This setting allows the electromagnet core to be automatically installed into the coil frame, making installation convenient and improving the stability of the connection between the electromagnet core and the coil frame.

[0032] The bottom of the housing 1 is provided with two pins 5, which are connected and cooperate with the electromagnetic coil.

[0033] A suppressor diode 6 is connected between the two pins 5.

[0034] This setting protects the delicate components in the device's electronic circuitry from damage caused by surge pulses.

[0035] The coil frame 41 further includes a lower insertion portion 413 connected to the lower end of the winding post portion 411. The lower insertion portion 413 has a slot 4131 on one side. The plug 5 includes a connecting plug portion 51 and a connecting foot portion 52. The connecting plug portion 51 includes a vertical piece 511, a first horizontal piece 512, and a second horizontal piece 513. The first horizontal piece 512 and the second horizontal piece 513 are connected to the vertical piece 511 and arranged in parallel. The first horizontal piece 512 is located in the slot 4131 and is inserted into it. The second horizontal piece 513 is located at the lower end of the lower insertion portion 413.

[0036] This design improves the ease of pin assembly while enhancing the stability of the connection between the pin and the lower insertion part.

[0037] The upper and lower ends of the first horizontal piece 512 include an insertion plane 5121 that is in clearance fit with the slot 4131 and an abutment arc surface 5122 that is in tight fit with the slot 4131.

[0038] This design ensures a tight connection between the first horizontal piece and the slot while making the first horizontal piece easier to assemble.

[0039] The pin 5 also includes a wrapping flap 53, one end of which is connected to the vertical piece 511 and bent relative to that end to have a second straight state that is straight with the vertical piece 511 and a second bent position that is bent to the side of the downward insertion part 413 and perpendicular to the vertical piece 511.

[0040] With this setting, after the pin is inserted into the lower insertion part, the wire is wound when the winding flap is in the second winding position. After the winding is completed, it is bent to the second installation position so that it does not interfere with other structures.

[0041] like Figure 2 As shown, the left-side fold is at the second bend position, while the right-side fold is in a straight state.

[0042] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the claims of the present utility model shall still fall within the scope of the present utility model.

Claims

1. An electromagnetic relay with an LED indicator light, comprising a base (11) and a transparent cover (12) constituting a housing (1), and an electromagnetic mechanism, a contact mechanism, and an LED indicator light (2) disposed within the housing (1), wherein the electromagnetic mechanism drives the moving contact (31) and the stationary contact (32) in the contact mechanism to connect or disconnect, the electromagnetic mechanism comprising a coil frame (41), an electromagnetic coil wound on the coil frame (41), an electromagnet core (42) disposed in the central cavity of the coil frame (41), and an armature (43) linked with the moving contact (31), characterized in that: The LED indicator (2) includes a lamp head (21) and two lamp feet (22). The coil frame (41) includes a winding post (411) and an upper insertion part (412) connected to the upper end of the winding post (411). The upper insertion part (412) has two vertically arranged first insertion holes (4121) corresponding to the lamp feet (22). The lamp feet (22) are connected to the first insertion holes (4121) and their lower ends pass through the first insertion holes (4121) to connect and cooperate with the electromagnetic coil.

2. The electromagnetic relay with LED indicator light according to claim 1, characterized in that: The lamp base (22) is an integral part including an L-shaped structure. The L-shaped structure includes an L-shaped horizontal part (221) and an L-shaped vertical part (222) connected to each other. The lower end of the L-shaped vertical part (222) passes through the first insertion hole (4121). The L-shaped horizontal part (221) is connected and cooperates with the lamp head (21) and abuts against the upper end of the upper insertion part (412).

3. An electromagnetic relay with an LED indicator light according to claim 1, characterized in that: The portion of the lamp base (22) extending out of the first socket (4121) has a first straight state that is parallel to the portion located inside the first socket (4121) and a first bent state that is perpendicular to the portion located inside the first socket (4121).

4. An electromagnetic relay with an LED indicator light according to claim 1, characterized in that: The lamp base (22) is tightly fitted with the first socket (4121).

5. An electromagnetic relay with an LED indicator light according to claim 1, characterized in that: The electromagnet core (42) includes a first core (421) and a second core (422) from top to bottom. The second core (422) is adapted to the size of the central cavity of the coil frame (41). The size of the first core (421) is larger than the size of the central cavity of the coil frame (41). The second core (422) is located inside the central cavity of the coil frame (41). The first core (421) is located outside the central cavity of the coil frame (41) and abuts against the upper end of the coil frame (41).

6. An electromagnetic relay with an LED indicator light according to any one of claims 1-5, characterized in that: The bottom of the housing (1) is provided with two pins (5), which are connected and cooperate with the electromagnetic coil.

7. An electromagnetic relay with an LED indicator light according to claim 6, characterized in that: A suppressor diode (6) is connected between the two pins (5).

8. An electromagnetic relay with an LED indicator light according to claim 6, characterized in that: The coil frame (41) also includes a lower insertion part (413) connected to the lower end of the winding post (411), and the lower insertion part (413) has a slot (4131) on one side. The pin (5) includes a connecting insert (51) and a connecting foot (52). The connecting insert (51) includes a vertical piece (511), a first horizontal piece (512), and a second horizontal piece (513). The first horizontal piece (512) and the second horizontal piece (513) are connected to the vertical piece (511) and arranged in parallel. The first horizontal piece (512) is located in the slot (4131) and is inserted into it. The second horizontal piece (513) is located at the lower end of the lower insert (413).

9. An electromagnetic relay with an LED indicator light according to claim 8, characterized in that: The upper and lower ends of the first horizontal piece (512) include an insertion plane (5121) that is in clearance fit with the slot (4131) and an abutment arc surface (5122) that is in tight fit with the slot (4131).

10. An electromagnetic relay with an LED indicator light according to claim 8, characterized in that: The pin (5) also includes a wrapping flap (53), one end of which is connected to the vertical piece (511) and bent relative to that end to have a second straight state that is straight with the vertical piece (511) and a second bent position that is bent to the side of the downward insertion part (413) and perpendicular to the vertical piece (511).

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