Relay

Abstract

The utility model relates to the technical field of electronic control devices, in particular to a relay, which comprises a shell, an insulating cover, a frame, a first conducting strip and a second conducting strip, a coil leading-out end and an auxiliary leading-out end are arranged at the top of the shell, and a circuit board is arranged in the shell; the insulating cover is mounted in the shell; an auxiliary lead-out needle is arranged at the top of the insulating cover; the frame is mounted in the shell; the first conducting strip and the second conducting strip are fixedly mounted on the frame, one end of the first conducting strip is connected with the coil leading-out end, and the other end is connected with the circuit board; one end of the second conductive sheet is connected with the auxiliary lead-out pin, and the other end is connected with the auxiliary lead-out end. By arranging the frame in the shell, the first conducting strip and the second conducting strip can be fixed, the circuit board and the coil leading-out end are connected through the first conducting strip, the auxiliary leading-out needle and the auxiliary leading-out end are connected through the second conducting strip, use of flexible wires can be reduced, the assembly efficiency is improved, and the risk that the wires are crushed is reduced or even eliminated.

Description

Technical Field

[0001] This utility model relates to the field of electronic control device technology, and more specifically, to a relay. Background Technology

[0002] A 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), and is commonly used in automatic control circuits. Essentially, a relay is an "automatic switch" that uses a smaller current to control a larger current. Therefore, it plays a role in automatic adjustment, safety protection, and circuit switching in circuits.

[0003] High-voltage DC relays are a type of relay. In existing high-voltage DC relays, the signals from the coil and auxiliary contacts are transmitted to the terminals on the housing by welding signal wires. This method requires welding multiple flexible wires, resulting in a messy internal wire layout, difficult welding operations, low assembly efficiency, and easy damage to the wires during assembly. Utility Model Content

[0004] This utility model provides a relay to improve assembly efficiency and reduce the risk of wire damage.

[0005] The relay provided in this embodiment of the utility model includes:

[0006] The housing has a coil lead-out end and an auxiliary lead-out end on its top, and a circuit board is provided inside the housing.

[0007] An insulating cover is installed inside the housing, and an auxiliary lead-out pin is installed on the top of the insulating cover;

[0008] A frame, which is mounted within the housing;

[0009] A first conductive sheet is fixedly mounted on the frame, one end of the first conductive sheet is connected to the coil lead-out end, and the other end of the first conductive sheet is connected to the circuit board; and

[0010] The second conductive sheet is fixedly installed on the frame. One end of the second conductive sheet is connected to the auxiliary lead-out pin, and the other end of the second conductive sheet is connected to the auxiliary lead-out pin.

[0011] According to some embodiments of the present invention, the frame is provided with a first limiting part and a second limiting part, the first conductive sheet is provided with a first limiting engagement part, the second conductive sheet is provided with a second limiting engagement part, the first limiting part engages with the first limiting engagement part, and the second limiting part engages with the second limiting engagement part.

[0012] According to some embodiments of the present invention, the first limiting part is a first limiting protrusion, the second limiting part is a second limiting protrusion, the first limiting mating part is a first limiting hole, the second limiting mating part is a second limiting hole, the first limiting protrusion is limited to the first limiting hole, and the second limiting protrusion is limited to the second limiting hole.

[0013] According to some embodiments of the present invention, a first clamping part is provided at one end of the first conductive sheet, a second clamping part is provided at the other end of the first conductive sheet, the coil lead end is inserted into the first clamping part, and the circuit board is inserted into the second clamping part.

[0014] According to some embodiments of the present invention, the first clamping part includes two elastic arms, which are symmetrically arranged along the width direction of the first conductive sheet.

[0015] According to some embodiments of the present invention, a portion between the two ends of the first conductive sheet is bent to form a snap-fit ​​groove, and the snap-fit ​​groove snaps into the edge of the frame.

[0016] According to some embodiments of this utility model, the frame is provided with a clamping structure, and the circuit board is connected to the clamping structure.

[0017] According to some embodiments of this utility model, the first conductive sheet is riveted to the frame; the second conductive sheet is riveted to the frame; and the second conductive sheet is welded to the auxiliary lead-out pin.

[0018] According to some embodiments of this utility model, the number of coil leads is multiple, and the number of first conductive sheets is the same as the number of coil leads; the number of auxiliary leads is multiple, and the number of second conductive sheets and the number of auxiliary lead pins are the same as the number of auxiliary leads.

[0019] According to some embodiments of the present invention, at least a portion of the second conductive sheet includes a first plate portion, a second plate portion, and a third plate portion. One end of the third plate portion is connected to the first plate portion, and the other end of the third plate portion is connected to the second plate portion. The first plate portion and the second plate portion are respectively located on both sides of the third plate portion. The first plate portion is connected to the auxiliary lead-out pin, and the second plate portion is provided with a clamping portion. The auxiliary lead-out pin is inserted into the clamping portion.

[0020] According to some embodiments of this utility model, the number of auxiliary leads is three, namely a normally open terminal, a normally closed terminal, and a common terminal; the number of second conductive sheets is three, namely a normally open conductive sheet, a normally closed conductive sheet, and a common conductive sheet; each of the normally open conductive sheet, the normally closed conductive sheet, and the common conductive sheet is provided with a clamping part; the normally open terminal, the normally closed terminal, and the common terminal are respectively inserted into the clamping parts of the normally open conductive sheet, the normally closed conductive sheet, and the common conductive sheet.

[0021] According to some embodiments of this utility model, the relay further includes an auxiliary spring, which includes a normally open auxiliary stationary spring, a normally closed auxiliary stationary spring, and an auxiliary moving spring; the number of auxiliary lead-out pins is three, namely a first auxiliary lead-out pin, a second auxiliary lead-out pin, and a third auxiliary lead-out pin. One end of the first auxiliary lead-out pin is connected to the normally open auxiliary stationary spring, and the other end is connected to the normally open conductive plate; one end of the second auxiliary lead-out pin is connected to the normally closed auxiliary stationary spring, and the other end is connected to the normally closed conductive plate; one end of the third auxiliary lead-out pin is connected to the auxiliary moving spring, and the other end is connected to the common conductive plate.

[0022] According to some embodiments of the present invention, the relay further includes a wire, one end of which is connected to the third auxiliary lead-out pin, and the other end of which is connected to the common conductive sheet;

[0023] The circumferential sidewall of the frame is provided with a wire groove, and the portion between the two ends of the wire is accommodated in the wire groove; the groove wall of the wire groove near the common conductive sheet is provided with two wire through holes, and the wire through holes are connected to the wire groove.

[0024] According to some embodiments of this utility model, the frame has a hollow structure with openings at both ends, and the frame is installed between the insulating cover and the outer shell.

[0025] One embodiment of the above-described utility model has at least the following advantages or beneficial effects:

[0026] (1) The relay provided in this utility model embodiment can fix the first conductive sheet and the second conductive sheet by setting a frame inside the housing. The first conductive sheet is used to connect the circuit board and the coil lead-out end, and the second conductive sheet is used to connect the auxiliary lead-out pin and the auxiliary lead-out end. This can reduce the use of flexible wires, improve assembly efficiency, and reduce or even eliminate the risk of wire damage.

[0027] (2) The relay provided in this utility model embodiment provides a first limiting part in the frame and a first limiting mating part in the first conductive sheet. The first limiting part and the first limiting mating part cooperate with each other. The first limiting mating part and the hole for the rivet to pass through are located at different positions of the first conductive sheet. This can effectively prevent the first conductive sheet from rotating around the rivet, thereby ensuring the stability of the first conductive sheet and the firmness of its connection with the coil lead-out end, and ensuring normal and stable signal transmission. Attached Figure Description

[0028] Figure 1 The diagram shown is a structural schematic of the relay provided in an embodiment of this utility model;

[0029] Figure 2 The image shown is a right view of the relay provided in an embodiment of this utility model;

[0030] Figure 3 What is shown is Figure 2 A sectional view along line AA;

[0031] Figure 4 The image shown is a front view of a relay provided in an embodiment of this utility model;

[0032] Figure 5 What is shown is Figure 4 A cross-sectional view along line BB;

[0033] Figure 6 The diagram shown is a structural schematic of the relay provided in an embodiment of the present invention (the second housing is not shown).

[0034] Figure 7 The diagram shown is a structural schematic of the relay provided in an embodiment of the present invention (the housing, coil lead-out terminal, and auxiliary lead-out terminal are not shown).

[0035] Figure 8 What is shown is Figure 7 A magnified view of a section at point I;

[0036] Figure 9 What is shown is Figure 7 The top view of the relay shown;

[0037] Figure 10 The diagram shown is a structural schematic of the first conductive sheet in an embodiment of this utility model;

[0038] Figure 11 The diagram shown is a structural schematic of the frame in an embodiment of this utility model;

[0039] Figure 12 The image shown is a top view of the frame in an embodiment of this utility model;

[0040] Figure 13 The image shown is a left view of the frame in an embodiment of this utility model;

[0041] Figure 14 The image shown is a front view of the frame in an embodiment of this utility model;

[0042] Figure 15 The diagram shown is a structural schematic of the yoke plate in an embodiment of this utility model;

[0043] Figure 16 The diagram shown is a structural schematic of the auxiliary reed in the relay provided in this embodiment of the present invention.

[0044] The annotations in the attached figures are explained as follows:

[0045] 1-Outer shell; 11-First shell; 12-Second shell; 121-Top plate; 2-Insulating cover; 3-Frame; 31-First annular plate; 311-First limiting protrusion; 312-Second limiting protrusion; 313-Slot; 314-Wire passage groove; 315-Wire through hole; 32-Second annular plate; 321-Positioning protrusion; 33-Circumferential sidewall; 4-First conductive sheet; 41-First plate structure; 411-First clamping part; 4111-Elastic arm; 412-First limiting hole; 42-Second plate structure; 421-Second clamping part; 43-Connecting plate; 44-Snap-fit ​​groove; 51-First plate part; 52-Second plate part; 521-Clamping part; 522-First... Two limiting holes; 53-Third plate; 6-Circuit board; 7-Insulating seat; 8-Seal; 9-Stationary contact; 10-Yoke plate; 101-Positioning hole; 20-Frame piece; 301-Stationary iron core; 302-Moving iron core; 303-Push rod; 304-Moving spring; 40-Coil frame; 501-Normally open terminal; 502-Normally closed terminal; 503-Common terminal; 504-Coil lead-out terminal; 601-Normally open conductive piece; 602-Normally closed conductive piece; 603-Common conductive piece; 701-First auxiliary lead-out pin; 702-Second auxiliary lead-out pin; 703-Third auxiliary lead-out pin; 801-Normally open auxiliary stationary spring; 802-Normally closed auxiliary stationary spring; 803-Auxiliary moving spring. Detailed Implementation

[0046] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that the present invention will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore their detailed description will be omitted.

[0047] See Figures 1 to 16As shown, this embodiment provides a relay, including a housing 1, an insulating cover 2, a frame 3, a first conductive plate 4, and a second conductive plate. The top of the housing 1 is provided with a coil lead-out terminal 504 and an auxiliary lead-out terminal, and a circuit board 6 is provided inside the housing. The insulating cover 2 is installed inside the housing, and an auxiliary lead-out pin is provided on the top of the insulating cover 2. The frame 3 is installed inside the housing. The first conductive plate 4 is fixedly installed on the frame 3, with one end of the first conductive plate 4 connected to the coil lead-out terminal 504 and the other end of the first conductive plate 4 connected to the circuit board 6. The second conductive plate is fixedly installed on the frame 3, with one end of the second conductive plate connected to the auxiliary lead-out pin and the other end of the second conductive plate connected to the auxiliary lead-out terminal.

[0048] The relay provided in this embodiment can fix the first conductive sheet 4 and the second conductive sheet by setting a frame 3 inside the housing. The first conductive sheet 4 is used to connect the circuit board 6 and the coil lead-out end 504, and the second conductive sheet is used to connect the auxiliary lead-out pin and the auxiliary lead-out end. This can reduce the use of flexible wires, improve assembly efficiency, and reduce or even eliminate the risk of wire damage.

[0049] For example, see Figure 1 As shown, the outer casing 1 includes a first casing 11 and a second casing 12, which are snapped together. The first casing 11 is cylindrical, and the second casing 12 includes a top plate 121 with two through holes.

[0050] In this embodiment, see Figure 3 and Figure 5 As shown, the relay also includes an insulating base 7 and a sealing element 8. The insulating cover 2 has a first end and a second end arranged axially opposite each other. A stationary contact 9 is mounted on the first end. The end of the stationary contact 9 located outside the insulating cover 2 is connected to a stationary contact lead-out end, which passes through a through hole on the top plate 121 of the second housing 12. The insulating cover 2 covers one end of the insulating base 7, and the sealing element 8 is located between the insulating cover 2 and the insulating base 7.

[0051] For example, the insulating cover 2 can be a ceramic cover. The first end of the insulating cover 2 has two mounting holes, each housing a stationary contact 9, one of which serves as a current inflow terminal and the other as a current outflow terminal. The second end of the insulating cover 2 is an open end, and a portion of the insulating base 7 is fixedly installed within the open end. The insulating base 7 can be made of plastic and includes a circumferential sidewall and a base plate, which are integrally formed by injection molding.

[0052] In this embodiment, see Figure 5As shown, the relay also includes a yoke plate 10 and a frame plate 20. The yoke plate 10 is sealed to the second end of the insulating cover 2 through the frame plate 20 to form a first vacuum chamber. A metal shell is connected to the side of the yoke plate 10 away from the insulating cover 2 to form a second vacuum chamber. The yoke plate 10 is provided with a through hole for connecting the first vacuum chamber and the second vacuum chamber. The relay also includes a stationary iron core 301, a moving iron core 302, a push rod 303, and a moving spring 304. The stationary iron core 301 is fixedly connected to the wall of the through hole. The moving iron core 302 is located in the second vacuum chamber, and the moving spring 304 is located in the first vacuum chamber. One end of the push rod 303 is connected to the moving iron core 302, and the other end of the push rod 303 is connected to the moving spring 304. The moving iron core 302 can be attracted or separated from the stationary iron core 301 so that the moving contact on the moving spring 304 contacts or disconnects from the stationary contact on the stationary contact 9.

[0053] In one embodiment, see Figure 5 and Figure 11 As shown, the frame 3 has a hollow structure with openings at both ends, and the frame 3 is installed between the insulating cover 2 and the outer shell 1.

[0054] For example, see Figure 11 As shown, the frame 3 includes a first annular plate 31, a second annular plate 32, and a circumferential sidewall 33 surrounding the first annular plate 31 and the second annular plate 32. The circumferential sidewall 33 is integrally formed with the inner ring edge of the first annular plate 31 and the second annular plate 32.

[0055] For example, see Figure 12 As shown, the inner contours of the first annular plate 31 and the second annular plate 32 are oblong. The circumferential sidewalls 33 include two opposing arc-shaped sidewalls and two opposing straight walls. The inner surfaces of the two opposing straight walls are each provided with a receiving groove, in which a magnet is fixedly installed. During assembly, the frame 3 with the magnets installed is fitted onto the outside of the insulating cover 2. The two magnets are located on opposite sides of the insulating cover 2 for arc extinguishing. After assembly, the first annular plate 31 is positioned close to the top of the insulating cover 2. For example, see [link to example]. Figure 7 As shown, there is a certain gap between the upper surface of the first annular plate 31 and the top of the insulating cover 2.

[0056] In one embodiment, the frame 3 is provided with a positioning part, and the yoke plate 10 is provided with a positioning mating part. The positioning mating part cooperates with the positioning part to restrict the frame 3 from rotating relative to the yoke plate 10. This can prevent the magnet from moving with the frame 3 and further improve the overall stability of the arc extinguishing mechanism.

[0057] In some embodiments, see Figures 13 to 15 As shown, the positioning part is the positioning protrusion 321, and the positioning mating part is the positioning hole 101.

[0058] For example, see Figure 14 As shown, there are two positioning protrusions 321, which are disposed on the lower surface of the second annular plate 32 of the frame 3. See also Figure 15 As shown, there are also two positioning holes 101, and the two positioning holes 101 correspond one-to-one with the two positioning protrusions 321.

[0059] In other embodiments, the positioning part may also be a positioning hole, and correspondingly, the positioning mating part may be a positioning protrusion.

[0060] In one embodiment, the first conductive sheet 4 is riveted to the frame 3; the second conductive sheet is riveted to the frame 3, and the second conductive sheet is welded to the auxiliary lead-out pin.

[0061] For example, taking the first conductive sheet 4 as an example, both the first conductive sheet 4 and the frame 3 are provided with holes for rivets to pass through.

[0062] During the riveting process, the first conductive piece 4 is prone to rotating around the axis of the rivet, causing positional displacement. To limit the first conductive piece 4, a first limiting part is provided on the upper surface of the first annular plate 31 of the frame 3, and a first limiting mating part is provided on the first conductive piece 4. The first limiting part and the first limiting mating part cooperate with each other. The first limiting mating part and the hole for the rivet to pass through are located at different positions on the first conductive piece 4, which can effectively prevent the first conductive piece 4 from rotating around the rivet, thereby ensuring the stability of the first conductive piece 4 and the firmness of its connection with the coil lead-out terminal 504, and ensuring normal and stable signal transmission.

[0063] In one embodiment, the first limiting portion is a first limiting protrusion 311, and the first limiting mating portion is a first limiting hole 412. The first limiting protrusion 311 is limited by the first limiting hole 412. The first limiting hole 412 and the hole for the rivet to pass through are located at different positions on the first conductive sheet 4. See [reference needed] Figure 11 As shown, the first limiting protrusion 311 is located on the upper surface of the first annular plate 31 of the frame 3, and the first limiting protrusion 311 is limited to the first limiting hole 412.

[0064] During riveting, the first limiting protrusion 311 is located inside the first limiting hole 412. The rivet passes through the hole on the first conductive sheet 4 and the frame 3 for the rivet to pass through. The first limiting protrusion 311 and the rivet cooperate to play a limiting role, thereby preventing the position of the conductive sheet from shifting and ensuring normal and stable signal transmission.

[0065] Similarly, the upper surface of the first annular plate 31 of the frame 3 is provided with a second limiting part, and the second conductive sheet is provided with a second limiting mating part, and the second limiting part and the second limiting mating part cooperate with each other.

[0066] For example, see Figure 11As shown, the second limiting part is the second limiting protrusion 312, the second limiting mating part is the second limiting hole 522, and the second limiting protrusion 312 is limited in the second limiting hole 522.

[0067] It should be noted that the first limiting part can also be a limiting hole, and correspondingly, the first limiting mating part is a limiting protrusion. The second limiting part can also be a limiting hole, and correspondingly, the second limiting mating part is a limiting protrusion.

[0068] In one embodiment, a first clamping part 411 is provided at one end of the first conductive sheet 4, and a second clamping part 421 is provided at the other end of the first conductive sheet 4. The coil lead-out end 504 is inserted into the first clamping part 411, and the circuit board 6 is inserted into the second clamping part 421. This method can achieve rapid insertion and improve assembly efficiency.

[0069] In one embodiment, the first clamping part 411 includes two elastic arms 4111, which are symmetrically arranged along the width direction of the first conductive sheet 4.

[0070] For example, see Figure 10 As shown, the two elastic arms 4111 and the portion of the first conductive sheet 4 located between the two elastic arms 4111 together form a groove structure. The groove opening width is smaller than the groove bottom width. The free ends of the two elastic arms 4111 have outwardly flared flanges to form guide flares, which facilitates the insertion of the coil lead end 504 from the guide flares and clamping and fixing it by the two elastic arms 4111, achieving rapid assembly while ensuring structural stability and reliability.

[0071] For example, the first limiting hole 412 is located on the first conductive sheet 4 corresponding to the first clamping part 411, that is, the first limiting hole 412 is located at the bottom of the groove structure.

[0072] To improve the stability of the first conductive sheet 4, see [reference needed]. Figure 10 As shown, the portion between the two ends of the first conductive sheet 4 is bent to form a snap-fit ​​groove 44. The snap-fit ​​groove 44 snaps into the edge of the frame 3, thereby limiting the position of the first conductive sheet 4 through the frame 3, which facilitates the subsequent riveting of the first conductive sheet 4 to the frame 3 and the assembly of the circuit board 6.

[0073] Specifically, see Figure 10As shown, the first conductive sheet 4 includes a first plate-shaped structure 41, a second plate-shaped structure 42, and a connecting plate 43. For example, the first plate-shaped structure 41 and the second plate-shaped structure 42 are parallel, and the connecting plate 43 is perpendicularly connected between the first plate-shaped structure 41 and the second plate-shaped structure 42. The connecting plate 43 and the portions of the first plate-shaped structure 41 and the second plate-shaped structure 42 located on both sides of the connecting plate 43 together form a snap-fit ​​groove 44. After assembly, the first plate-shaped structure 41 and the second plate-shaped structure 42 are located on both sides of the first annular plate 31 of the frame 3, and the connecting plate 43 is located on the outer ring surface of the first annular plate 31.

[0074] The first clamping part 411 is connected to the first plate structure 41. The two elastic arms 4111 of the first clamping part 411 are symmetrically arranged along the width direction of the first plate structure 41. The first limiting hole 412 is located at the position corresponding to the first clamping part 411 on the first plate structure 41. The hole for the rivet to pass through is also provided on the first plate structure 41. The second clamping part 421 is connected to the second plate structure 42. The opening direction of the second clamping part 421 is opposite to that of the first clamping part 411.

[0075] It should be noted that the structure of the second clamping part 421 is basically the same as that of the first clamping part 411, and will not be described again here.

[0076] For example, the first clamping part 411, the second clamping part 421, the first plate structure 41, the second plate structure 42 and the connecting plate 43 are integrally formed.

[0077] In one embodiment, the second conductive sheet includes a first plate portion 51, a second plate portion 52, and a third plate portion 53. One end of the third plate portion 53 is connected to the first plate portion 51, and the other end of the third plate portion 53 is connected to the second plate portion 52. The first plate portion 51 and the second plate portion 52 are located on both sides of the third plate portion 53, respectively. The first plate portion 51 is connected to an auxiliary lead-out pin, and the second plate portion 52 is riveted to the frame 3. The second plate portion 52 is provided with a clamping portion 521, and the auxiliary lead-out end is inserted into the clamping portion 521.

[0078] Since there is a certain gap between the upper surface of the first annular plate 31 and the top of the insulating cover 2, when the second plate 52 is riveted to the frame 3, in order to enable the first plate 51 to connect with the auxiliary lead-out pin, a third plate 53 is provided between the first plate 51 and the second plate 52. The length of the third plate 53 is slightly greater than the distance between the upper surface of the first annular plate 31 and the top of the insulating cover 2, so as to ensure that the first plate 51 can be placed on the top of the insulating cover 2.

[0079] In this embodiment, the second limiting hole 522 is provided on the second plate portion 52.

[0080] For example, the first plate portion 51, the second plate portion 52, the third plate portion 53 and the clamping portion 521 are integrally formed.

[0081] It should be noted that when there are multiple second conductive sheets, the multiple second conductive sheets can adopt roughly the same structure or different structures, as long as they can achieve the functions of easy assembly and improved structural stability.

[0082] In one embodiment, the frame 3 is provided with a clamping structure, and the circuit board 6 is connected to the clamping structure.

[0083] For example, the inner contour shape of the first annular plate 31 is an elongated oval, that is, the inner contour of the first annular plate 31 includes two opposing straight edges and two opposing curved edges, see [link to relevant documentation]. Figure 6 and Figure 14 As shown, the clamping structure is located on the lower surface of the portion corresponding to the straight edge of the first annular plate 31. The clamping structure is provided with a slot 313, and the slot opening of the slot 313 faces the direction of the yoke plate 10. A coil frame 40 is provided below the yoke plate 10. The circuit board 6 is mounted on the top of the coil frame 40. The coil frame 40 is provided with a support portion, and a coil pin is provided in the support portion. The circuit board 6 is located on the support portion and connected to the coil pin. The upper edge of the circuit board 6 is clamped and fixed in the slot 313.

[0084] In one embodiment, there are multiple coil leads 504, and the number of first conductive pieces 4 is the same as the number of coil leads 504; for example, there are two coil leads 504, and there are also two first conductive pieces 4. One end of each of the two first conductive pieces 4 is connected to the two coil leads 504, and the other end of each of the two first conductive pieces 4 is connected to the circuit board 6.

[0085] There are multiple auxiliary leads, and the number of second conductive plates and auxiliary lead pins are the same as the number of auxiliary leads.

[0086] For example, there are three auxiliary leads, namely a normally open terminal 501, a normally closed terminal 502, and a common terminal 503. There are also three second conductive sheets, namely a normally open conductive sheet 601, a normally closed conductive sheet 602, and a common conductive sheet 603. Each of the normally open conductive sheet 601, normally closed conductive sheet 602, and common conductive sheet 603 is provided with a clamping part 521. The normally open terminal 501, normally closed terminal 502, and common terminal 503 are respectively inserted into the clamping parts 521 of the normally open conductive sheet 601, normally closed conductive sheet 602, and common conductive sheet 603.

[0087] In this embodiment, the normally open conductive sheet 601, the normally closed conductive sheet 602, and the common conductive sheet 603 are all provided with limiting holes, and the corresponding positions of the frame 3 are all provided with limiting protrusions.

[0088] For example, see Figure 7 and Figure 8 As shown, the normally closed conductive sheet 602 includes a first plate portion 51, a second plate portion 52, and a third plate portion 53. One end of the third plate portion 53 is connected to the first plate portion 51, and the other end of the third plate portion 53 is connected to the second plate portion 52. The first plate portion 51 and the second plate portion 52 are located on both sides of the third plate portion 53, respectively. The first plate portion 51 is connected to the auxiliary lead-out pin, and the second plate portion 52 is riveted to the frame 3. The second plate portion 52 is provided with a clamping portion 521, and the auxiliary lead-out end is inserted into the clamping portion 521.

[0089] In one embodiment, the relay also includes an auxiliary reed, see [link to previous embodiment]. Figure 16 As shown, the auxiliary spring includes a normally open auxiliary stationary spring 801, a normally closed auxiliary stationary spring 802, and an auxiliary moving spring 803; there are three auxiliary lead-out pins, namely a first auxiliary lead-out pin 701, a second auxiliary lead-out pin 702, and a third auxiliary lead-out pin 703. One end of the first auxiliary lead-out pin 701 is connected to the normally open auxiliary stationary spring 801, and the other end of the first auxiliary lead-out pin 701 is connected to the normally open conductive sheet 601; one end of the second auxiliary lead-out pin 702 is connected to the normally closed auxiliary stationary spring 802, and the other end of the second auxiliary lead-out pin 702 is connected to the normally closed conductive sheet 602; one end of the third auxiliary lead-out pin 703 is connected to the auxiliary moving spring 803, and the other end of the third auxiliary lead-out pin 703 is connected to the common conductive sheet 603.

[0090] See Figure 9 As shown, the relay provided in this embodiment also includes a wire (shown as a dashed line), one end of which is connected to the third auxiliary lead-out pin 703, and the other end of which is connected to the common conductive sheet 603; the circumferential sidewall 33 of the frame 3 is provided with a wire groove 314, and the portion between the two ends of the wire is accommodated in the wire groove 314; the groove wall of the wire groove 314 near the common conductive sheet 603 is provided with two wire holes 315, and the wire holes communicate with the wire groove 314.

[0091] For example, see Figure 11 As shown, the wire channel 314 is formed on the arc-shaped sidewall of the frame 3. Two wire holes 315 are provided on the first annular plate 31 of the frame 3. One wire hole 315 is located below the common conductive sheet 603, and the other wire hole 315 is located near the other end of the wire channel 314. One end of the wire is welded to the common conductive sheet 603, and the other end enters the wire channel 314 from the wire hole 315 below the common conductive sheet 603, and then passes out from the other wire hole 315 to the top of the frame 3, and is welded to the third auxiliary lead-out pin 703.

[0092] In this embodiment, only one wire is used, which not only avoids the problem of structural instability caused by the large distance between the third auxiliary lead pin 703 and the common end 503 and the direct connection through the common conductive sheet 603, but also shortens the length of the common conductive sheet 603 and avoids conductive mess. At the same time, by setting the wire groove 314, most of the wire is located in the wire groove 314, which can minimize the risk of the wire being damaged during assembly.

[0093] Of course, if the third auxiliary lead-out pin 703 is close to the common terminal 503, the common conductive sheet 603 can also adopt the same or similar structure as the normally closed conductive sheet 602.

[0094] In this embodiment, the first conductive sheet 4 is stabilized by the cooperation between the rivet and the first limiting part on the frame 3 and the first limiting mating part on the first conductive sheet 4, thereby ensuring accurate positioning of the first clamping part and the second clamping part. At the same time, the second limiting mating part on the rivet and the frame 3 and the second limiting mating part on the second conductive sheet are stabilized by the cooperation between the rivet and the second limiting mating part on the second conductive sheet, thereby ensuring accurate positioning of the multiple clamping parts. This facilitates the rapid insertion of the circuit board, coil leads, and various auxiliary leads, enabling all coil leads and auxiliary leads to be inserted into place at once, thus improving assembly efficiency.

[0095] See Figure 16 As shown, when the moving iron core 302 and the stationary iron core 301 are separated, the auxiliary moving spring 803 is in contact with the normally open auxiliary stationary spring 801. At this time, the small current loop between the common terminal 503 and the normally open terminal 501 is connected. When the moving iron core 302 and the stationary iron core 301 are engaged, the auxiliary moving spring 803 is in contact with the normally closed auxiliary stationary spring 802. At this time, the small current loop between the common terminal 503 and the normally closed terminal 502 is connected.

[0096] In other embodiments, the number of auxiliary leads may also be two.

[0097] It should be noted that the working principle of the relay, as well as the structure and operation process of the auxiliary lead and auxiliary spring, are things that those skilled in the art should be able to understand, and are well-known and easy to implement. Therefore, this embodiment will not elaborate on them further.

[0098] Finally, it should be noted that the various embodiments / implementations provided by this utility model can be combined with each other without creating contradictions, and will not be described in detail here.

[0099] In the embodiments of the utility model, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "install," "connect," "join," and "fix" should be interpreted broadly. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "join" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of the utility model according to the specific circumstances.

[0100] In the description of the utility model embodiments, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the utility model embodiments and simplifying the description, and do not indicate or imply that the device or unit referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model embodiments.

[0101] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0102] The above are merely preferred embodiments of the utility model and are not intended to limit the utility model. For those skilled in the art, various modifications and variations can be made to the utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the utility model should be included within the protection scope of the utility model.

Claims

1. A relay, characterized in that, include: The housing has a coil lead-out end and an auxiliary lead-out end on its top, and a circuit board is provided inside the housing. An insulating cover is installed inside the housing, and an auxiliary lead-out pin is installed on the top of the insulating cover; A frame, which is mounted within the housing; A first conductive sheet is fixedly mounted on the frame. One end of the first conductive sheet is connected to the coil lead-out end, and the other end of the first conductive sheet is connected to the circuit board. as well as The second conductive sheet is fixedly installed on the frame. One end of the second conductive sheet is connected to the auxiliary lead-out pin, and the other end of the second conductive sheet is connected to the auxiliary lead-out pin.

2. The relay according to claim 1, characterized in that, The frame is provided with a first limiting part and a second limiting part. The first conductive sheet is provided with a first limiting engagement part, and the second conductive sheet is provided with a second limiting engagement part. The first limiting part engages with the first limiting engagement part, and the second limiting part engages with the second limiting engagement part.

3. The relay according to claim 2, characterized in that, The first limiting part is a first limiting protrusion, the second limiting part is a second limiting protrusion, the first limiting mating part is a first limiting hole, the second limiting mating part is a second limiting hole, the first limiting protrusion is limited to the first limiting hole, and the second limiting protrusion is limited to the second limiting hole.

4. The relay according to claim 1, characterized in that, One end of the first conductive sheet is provided with a first clamping part, and the other end of the first conductive sheet is provided with a second clamping part. The coil lead end is inserted into the first clamping part, and the circuit board is inserted into the second clamping part.

5. The relay according to claim 4, characterized in that, The first clamping part includes two elastic arms, which are symmetrically arranged along the width direction of the first conductive sheet.

6. The relay according to claim 4, characterized in that, The portion between the two ends of the first conductive sheet is bent to form a snap-fit ​​groove, which snaps into the edge of the frame.

7. The relay according to claim 1, characterized in that, The frame is provided with a clamping structure, and the circuit board is connected to the clamping structure.

8. The relay according to any one of claims 1 to 7, characterized in that, The first conductive sheet is riveted to the frame; the second conductive sheet is riveted to the frame and welded to the auxiliary lead-out pin.

9. The relay according to any one of claims 1 to 7, characterized in that, The number of coil leads is multiple, and the number of first conductive plates is the same as the number of coil leads; the number of auxiliary leads is multiple, and the number of second conductive plates and auxiliary lead pins is the same as the number of auxiliary leads.

10. The relay according to claim 9, characterized in that, At least a portion of the second conductive sheet includes a first plate portion, a second plate portion, and a third plate portion. One end of the third plate portion is connected to the first plate portion, and the other end of the third plate portion is connected to the second plate portion. The first plate portion and the second plate portion are respectively located on both sides of the third plate portion. The first plate portion is connected to the auxiliary lead-out pin, and the second plate portion is provided with a clamping portion. The auxiliary lead-out pin is inserted into the clamping portion.

11. The relay according to claim 9, characterized in that, The number of auxiliary leads is three, namely a normally open terminal, a normally closed terminal, and a common terminal. The number of second conductive sheets is three, namely a normally open conductive sheet, a normally closed conductive sheet, and a common conductive sheet. Each normally open conductive sheet, normally closed conductive sheet, and common conductive sheet is provided with a clamping part. The normally open terminal, normally closed terminal, and common terminal are respectively inserted into the clamping parts of the normally open conductive sheet, normally closed conductive sheet, and common conductive sheet.

12. The relay according to claim 11, characterized in that, It also includes auxiliary springs, which include normally open auxiliary stationary springs, normally closed auxiliary stationary springs, and auxiliary moving springs; the number of auxiliary lead-out pins is three, namely a first auxiliary lead-out pin, a second auxiliary lead-out pin, and a third auxiliary lead-out pin. One end of the first auxiliary lead-out pin is connected to the normally open auxiliary stationary spring, and the other end is connected to the normally open conductive sheet; one end of the second auxiliary lead-out pin is connected to the normally closed auxiliary stationary spring, and the other end is connected to the normally closed conductive sheet; one end of the third auxiliary lead-out pin is connected to the auxiliary moving spring, and the other end is connected to the common conductive sheet.

13. The relay according to claim 12, characterized in that, It also includes a wire, one end of which is connected to the third auxiliary lead-out pin, and the other end of which is connected to the common conductive sheet; The circumferential sidewall of the frame is provided with a wire groove, and the portion between the two ends of the wire is accommodated in the wire groove; the groove wall of the wire groove near the common conductive sheet is provided with two wire through holes, and the wire through holes are connected to the wire groove.

14. The relay according to any one of claims 1 to 7, characterized in that, The frame has a hollow structure with openings at both ends, and the frame is installed between the insulating cover and the outer shell.

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