CN217405335U - Electromagnetic relay mounting structure - Google Patents
Electromagnetic relay mounting structure Download PDFInfo
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- CN217405335U CN217405335U CN202221577541.7U CN202221577541U CN217405335U CN 217405335 U CN217405335 U CN 217405335U CN 202221577541 U CN202221577541 U CN 202221577541U CN 217405335 U CN217405335 U CN 217405335U
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Abstract
The utility model discloses an electromagnetic relay mounting structure, which comprises a base, a movable spring, a static spring, a magnetic circuit mechanism and a push rod structure, wherein the movable spring is provided with a first mounting hole, an armature structure of the magnetic circuit structure is provided with a second mounting hole, and a mounting space for mounting the push rod structure is formed between the armature structure and the movable spring; the push rod structure comprises a first plug end inserted in the first mounting hole and a second plug end inserted in the second mounting hole, the push rod structure is inserted between the armature structure and the movable spring piece from the upper side of the mounting space, the electromagnetic relay adopting the technical scheme optimizes the product structure and the assembly process sequence, is easy to realize the automatic production and assembly of products, can ensure that the push rod structure cannot fall off in the automatic assembly process, is simple and convenient to assemble, improves the assembly efficiency, reduces the production and manufacturing cost, and is suitable for the automatic production and manufacturing of relay products.
Description
Technical Field
The utility model relates to a low-voltage apparatus technical field, specifically speaking relate to an electromagnetic relay mounting structure.
Background
An electromagnetic relay is an electronic control device having a control system (also called an input loop) and a controlled system (also called an output loop), and is generally applied to an automatic control circuit, and actually is an automatic switch for controlling a larger current and a higher voltage by using a smaller current and a lower voltage. Therefore, the circuit plays the roles of automatic regulation, safety protection, circuit conversion and the like.
The existing electromagnetic relay generally comprises a base, a magnetic circuit part, a contact part, a push rod and a push rod structure arranged between the magnetic circuit part and the contact part, wherein the contact part consists of a movable spring and a static spring which are inserted on the base, in the process of manufacturing and producing electromagnetic relay products, the movable spring and the static spring of the contact part are usually fixed on the base, then the base, the movable spring and the static spring are used for supporting and positioning the push rod, finally, the magnetic circuit system is installed, the push rod is clamped on an armature by utilizing the trend of the armature on the magnetic circuit system in the installation process, thereby realizing the manufacturing and assembling of products, because the push rod is supported on the base and then the magnetic circuit system is installed, the phenomenon of position collision interference is easy to occur between the armature and the push rod, the push rod is easy to fall in the installation process, but the push rod is required to be ensured not to fall in the transmission process during the automation production, therefore, the difficulty of automatic production is increased, and the automatic production development of the existing product is limited. Therefore, there is an urgent need to develop an electromagnetic relay that optimizes the product structure and improves the process sequence, and can be applied to automatic production.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the problem that exists among the prior art to a mounting structure is simple is provided, and easy automated production assembly improves assembly efficiency, reduces production manufacturing cost's electromagnetic relay mounting structure.
In order to solve the above problem, the utility model provides an electromagnetic relay mounting structure, include:
the movable reed is provided with a first mounting hole;
the magnetic circuit mechanism is arranged on the base and comprises an armature structure which can be arranged in a swinging mode and a second mounting hole which is arranged on the armature structure, and a mounting space is formed between the armature structure and the movable spring piece in an opposite mode;
the push rod structure is connected with the armature structure and the movable spring, and comprises a first plug end inserted in the first mounting hole and a second plug end inserted in the second mounting hole; the push rod structure is inserted between the armature structure and the movable spring from the upper part of the installation space, and has a first state of driving the first plug end to penetrate through a group of static springs obliquely downwards and then to be inserted into the first installation hole, and a second state of driving the second plug end to horizontally insert into the second installation hole towards one side of the armature structure.
As a preferred scheme, a group of the static reed between the movable reed and the armature structure is provided with a yielding hole through which the first plug end can pass, and the yielding hole is a rectangular hole and is opposite to the first mounting hole.
As a preferable scheme, two movable spring pieces are arranged on the base, and the first mounting holes are round hole structures respectively arranged on the two movable spring pieces.
As a preferable scheme, the push rod structure comprises a baffle part and two push blocks which are oppositely arranged on one side of the baffle part and extend towards the two movable spring pieces, the first plug ends are conical structures which are respectively arranged at the end parts of the two push blocks, and the push blocks are matched and abutted against the side surfaces of the movable spring pieces when the first plug ends are inserted into the first mounting holes.
As a preferable scheme, a middle empty groove is formed in the armature structure, and the second mounting hole is formed by two concave holes which are oppositely formed in the side edges of the two sides of the middle empty groove.
As a preferred scheme, the push rod structure further comprises a protruding portion arranged on the other side of the baffle portion, the second plug end is a square plug block arranged on the protruding portion and back to the first plug end, and the protruding portion is matched and abutted to the side face of the armature structure when the square plug block is inserted into the second mounting hole in a matched mode.
Preferably, the magnetic circuit mechanism comprises a coil assembly and a yoke, and a pressure spring is arranged on the yoke and penetrates through the middle empty groove to abut against the armature structure.
As a preferable scheme, the two groups of static reeds comprise two first reeds and two second reeds which are respectively opposite to the two movable reeds, and the two movable reeds are kept in normally closed contact with the two first reeds in the power-off release state of the magnetic circuit mechanism; the magnetic circuit mechanism drives the push rod structure to move towards one side of the movable reed in the electrified attraction state so as to push the two movable reeds to be in contact with the two second reeds.
Preferably, a cover is further mounted on the base, and a longitudinal partition for blocking a gap between the two movable springs extends between the cover and the base.
As a preferable scheme, a transverse partition plate for separating the movable spring leaf and the stationary spring leaf from the magnetic circuit mechanism is further arranged in the housing, and a slotted hole for the two push blocks and the first insertion end to pass through is formed in the transverse partition plate.
Compared with the prior art, the technical scheme of the utility model have following advantage:
1. in the electromagnetic relay mounting structure provided by the utility model, during assembly, the movable and static reed and the magnetic circuit mechanism can be firstly mounted on the base respectively by means of manual or automatic assembling machine, and finally the push rod structure is mounted between the movable reed and the armature structure, the push rod structure is sequentially subjected to two stages of a first state and a second state in the mounting process, the first stage is to adjust the push rod structure into an inclined posture to be inserted from the upper part of the mounting space, so that the push rod structure drives the first plug end to obliquely downwards pass through a group of static reed and then to be inserted into the first mounting hole, the process also effectively avoids the position between the second plug end and the armature, and the second stage is followed to drive the second plug end to horizontally insert into the second mounting hole towards one side of the armature structure by the push rod structure, thereby realizing the positioning and mounting of the two ends of the push rod structure on the movable reed and the armature structure, the electromagnetic relay designed by the technical scheme optimizes the product structure layout and the assembly process sequence, is designed behind the reed and the magnetic circuit mechanism according to the assembly process of the push rod structure, is easy to realize the automatic production and assembly of products, can ensure that the push rod structure cannot fall in the automatic assembly process, is simple and convenient to assemble, greatly improves the assembly efficiency, reduces the production and manufacturing cost, and is suitable for the automatic production and manufacturing of relay products.
2. The utility model provides an among the electromagnetic relay mounting structure, according to a set of seted up on the quiet reed and supplied the hole of stepping down that first spigot passed, this kind of structure sets up, when the oblique decurrent first mounting hole position of court of putter structure inserts, makes two ejector pads area first spigot and can smoothly pass the hole of stepping down to continue to insert in the first mounting hole, can avoid ejector pad and first spigot and this a set of quiet reed to take place the position interference phenomenon in the installation like this, realize the location through the location fit of first spigot and first mounting hole between putter structure and the movable contact spring and be connected.
3. The utility model provides an among the electromagnetic relay mounting structure, be provided with two shrinkage pools that are used for constituteing the second mounting hole on the middle part dead slot both sides side of armature, the second spigot is for matcing the square inserted block of pegging graft between two shrinkage pools, this kind of structure sets up, when the push rod structure realizes being connected the back through first spigot and movable contact spring, again with the second plug alignment of push rod structure insert the second mounting hole in, through the spacing grafting of second spigot in order to realize the location connection between push rod structure and the armature between two shrinkage pools, thereby the completion is structural at movable contact spring and armature with the both ends location connection of push rod structure, realize at the armature structure, form the transmission fit between push rod structure and the movable contact spring.
4. The utility model provides an among the electromagnetic relay mounting structure, separate two movable contact spring pieces, two first reed and two first reed respectively through longitudinal baffle to increased the electric clearance between two movable contact spring pieces, avoided taking place the creepage phenomenon between two movable contact spring pieces or two static contact spring pieces of adjacent setting, and can increase coil in the magnetic circuit mechanism and move, electric clearance between the static contact spring piece through transverse baffle.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below.
Fig. 1 is a schematic cross-sectional structure view of an electromagnetic relay mounting structure provided by the present invention;
fig. 2 is a schematic structural view of the push rod structure of the present invention inserted from above the installation space;
fig. 3 is a schematic view of an installation structure of the push rod structure of the present invention in a first state;
fig. 4 is a schematic view of an installation structure of the push rod structure of the present invention in a second state;
fig. 5 is a schematic view of an installation structure of the push rod structure of the present invention;
description of reference numerals: 1. a base; 11. a longitudinal partition; 2. a magnetic circuit mechanism; 21. an armature structure; 22. a yoke; 23. a coil assembly; 24. pressing a spring plate; 3. a movable reed; 4. a stationary reed; 40. a hole for abdication; 41. a first reed; 42. a second reed; 5. a push rod structure; 51. a first spigot; 52. a second spigot; 53. a baffle portion; 54. pushing a block; 55. a boss portion; 6. a first mounting hole; 7. a second mounting hole; 8. a housing; 81. and a transverse partition plate.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.
Example 1
The electromagnetic relay mounting structure provided in the present embodiment will be described in detail below with reference to fig. 1 to 5:
the present embodiment provides an electromagnetic relay mounting structure, including:
the movable reed structure comprises a base 1, at least one movable reed 3 and two groups of static reeds 4 which are respectively arranged on two sides of the movable reed 3, wherein the movable reed 3 is provided with a first mounting hole 6;
the magnetic circuit mechanism 2 is arranged on the base 1 and comprises an armature structure 21 capable of being arranged in a swinging mode and a second mounting hole 7 arranged on the armature structure 21, and a mounting space is formed between the armature structure 21 and the movable spring 3 in an opposite mode;
the push rod structure 5 is used for connecting the armature structure 21 with the movable spring 3 and comprises a first plug end 51 inserted into the first mounting hole 6 and a second plug end 52 inserted into the second mounting hole 7; the push rod structure 5 is inserted between the armature structure 21 and the movable spring 3 from above the installation space, and has a first state of driving the first plug end 51 to obliquely pass through the group of the stationary springs 4 and then to be inserted into the first installation hole 6, and a second state of driving the second plug end 52 to horizontally insert into the second installation hole 7 toward one side of the armature structure 21.
In the above embodiment, when assembling a product, the moving and static reed 4 and the magnetic circuit mechanism 2 may be mounted on the base 1 by means of a manual or automatic assembling machine, and finally the push rod structure 5 is mounted between the moving reed and the armature structure, the push rod structure 5 sequentially goes through two stages of a first state and a second state in the mounting process, referring to fig. 2-3, the first stage is to adjust the push rod structure 5 to an inclined posture to insert from above the mounting space, so that the push rod structure 5 drives the first plug end to obliquely pass through a group of the static reeds 4 and then insert into the first mounting hole 6, the process also effectively avoids the position between the second plug end 52 and the armature, and then the second stage is to drive the second plug end to horizontally insert into the second mounting hole 7 towards one side of the armature structure by the push rod structure 5, referring to fig. 4, thereby positioning and mounting of the two ends of the push rod structure 5 on the moving reed 3 and the armature structure 21 are realized, the electromagnetic relay designed by the technical scheme optimizes the product structure layout and the assembly process sequence, is designed behind the reed and the magnetic circuit mechanism according to the assembly process of the push rod structure, is easy to realize the automatic production and assembly of products, can ensure that the push rod structure 5 cannot fall in the automatic assembly process, is simple and convenient to assemble, greatly improves the assembly efficiency, reduces the production and manufacturing cost, and is favorable for promoting the automatic manufacturing development of relay products.
As shown in fig. 2, since a set of static springs 4 is disposed between the movable spring 3 and the armature structure 21, in order to enable the push rod structure 5 to drive the first plug end 51 to obliquely pass through the set of static springs 4 downward without being interfered by the installation position, a set of the static springs 4 disposed between the movable spring 3 and the armature structure 21 is provided with a yielding hole 40 through which the first plug end 51 can pass, and the yielding hole 40 is a rectangular hole and is disposed opposite to the first installation hole 6.
As a specific structural arrangement, the movable spring plate 3 is provided with two movable spring plates 3 on the base 1, the first mounting holes 6 are circular hole structures respectively provided on the two movable spring plates 3, the push rod structure 5 includes a baffle portion 53 and two push blocks 54 oppositely provided on one side of the baffle portion 53 and extending toward the two movable spring plates 3, the first plug end 51 is a tapered structure respectively provided at the end portions of the two push blocks 54, and the push blocks 54 are matched and abutted against the side surfaces of the movable spring plates 3 when the first plug end 51 is inserted into the first mounting hole 6, so as to limit the plugging distance between the first plug end 51 and the first mounting hole 6, and meanwhile, the movable spring plates can be deformed and bent back to one side of the push rod structure when being mounted and extruded by the push blocks, so as to adjust the push rod structure inserted into the mounting space to a horizontal posture. According to the structure, when the push rod structure 5 is inserted downwards in the inclined direction towards the first mounting hole 6, the two push blocks 54 with the first insertion ends 51 can smoothly penetrate through the abdicating hole 40 and are continuously inserted into the first mounting hole 6, so that the phenomenon of position interference between the push blocks 54 and the first insertion ends 51 and the group of static reeds 4 in the mounting process can be avoided, and the push rod structure and the movable reeds are connected in a positioning mode through the matching of the first insertion ends and the first mounting hole.
As shown in fig. 1-2, the armature structure 21 is provided with a middle hollow groove, the second mounting hole 7 is formed by two concave holes oppositely arranged on two side edges of the middle hollow groove, the push rod structure 5 further includes a protruding portion 55 arranged on the other side of the baffle portion 53, the second plug end 52 is a square plug block arranged on the protruding portion 55 and facing away from the first plug end 51, and the protruding portion 55 is matched and abutted against the side surface of the armature structure 21 when the square plug block is inserted into the second mounting hole 7 in a matching manner, so as to limit the insertion distance between the second plug end 52 and the second mounting hole 7. According to the structure, after the push rod structure 5 is connected with the movable spring piece 3 through the first plug end 51, the second plug of the push rod structure 5 is aligned and inserted into the second mounting hole 7, the movable spring piece is still in a deformation state when being mounted and extruded by the push rod structure, so that the second plug end 52 is gradually restored to an initial state when being mounted, the first plug end 51 is tightly connected with the first mounting hole 6 and cannot be separated from the first mounting hole, the second plug end 52 is in limited insertion between the two concave holes to realize positioning connection between the push rod structure 5 and the armature, the two ends of the push rod structure 5 are respectively positioned and connected to the movable spring piece 3 and the armature structure 21, the assembling process of the push rod structure is completed, and transmission matching among the push rod structure, the movable spring piece and the armature is realized.
The push rod structure 5 is erected between the movable spring 3 and the armature structure 21, the two ends of the push rod structure are subjected to the opposite limiting effects of the movable spring 3 and the armature structure 21, the driven spring and the armature of the push rod structure after being installed in place are effectively prevented from structurally falling off, the installation stability is good, and the automatic assembly of the electromagnetic relay is easy to realize.
In the present embodiment, as shown in fig. 1 to 4, the magnetic circuit mechanism 2 includes a coil assembly 23 and a yoke 22, a pressure spring 24 that penetrates through a central hollow groove and presses against the armature structure 21 is disposed on the yoke 22, and the armature structure 21 is limited by the pressure spring 24. The two groups of static reeds 4 comprise two first reeds 41 and two second reeds 42 which are respectively opposite to the two movable reeds 3, the abdicating holes 40 are formed in the two first reeds 41 corresponding to the first inserting ends 51, and the two movable reeds 3 are kept in normally closed contact with the two first reeds 41 in the power-off release state of the magnetic circuit mechanism 2, so that a group of control circuits can be switched on in the power-off state of the magnetic circuit mechanism 2; the magnetic circuit mechanism 2 drives the push rod structure 5 to move towards one side of the movable reed 3 in the electrified attraction state so as to push the two movable reeds 3 to be in contact with the two second reeds 42, and therefore the other group of control loops can be connected in the electrified state of the magnetic circuit mechanism 2, and on-off operation switching of the two groups of control loops is achieved.
As shown in fig. 1 and 4, a housing 8 is further mounted on the base 1, a longitudinal partition 11 blocking a gap between the two movable reeds 3 extends between the housing 8 and the base 1, wherein the longitudinal partition 11 includes a lower partition disposed on the base 1 and an upper partition disposed in the top of the housing 8, and the lower partition and the upper partition are connected together in a involution manner when the housing 8 and the base are assembled; in addition, a transverse clapboard 81 which separates the movable spring plate 4 and the static spring plate 4 from the magnetic circuit mechanism 2 is arranged in the housing 8, the transverse partition 81 is provided with a slotted hole for the two push blocks 54 and the first inserting end 51 to pass through, this avoids the occurrence of installation position interference between the transverse partition 81 and the pusher structure 5, which is advantageous in that, the two movable reeds 3, the two first reeds 41 and the two second reeds 42 are respectively separated by the longitudinal clapboard 11, thereby increasing the electric clearance between two adjacent movable reeds 3 and two adjacent static reeds 4, avoiding the creepage phenomenon between two adjacent movable reeds 3 or two adjacent static reeds 4, and the transverse partition plate 81 can increase the electric clearance between the coil in the magnetic circuit mechanism 2 and the movable spring leaf and the fixed spring leaf 4, thereby ensuring the use safety and reliability of the product.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.
Claims (10)
1. An electromagnetic relay mounting structure characterized by comprising:
the movable reed structure comprises a base (1), at least one movable reed (3) and two groups of static reeds (4) which are respectively arranged on two sides of the movable reed (3), wherein a first mounting hole (6) is formed in the movable reed (3);
the magnetic circuit mechanism (2) is arranged on the base (1) and comprises an armature structure (21) capable of being arranged in a swinging mode and a second mounting hole (7) arranged on the armature structure (21), and a mounting space is formed between the armature structure (21) and the movable spring piece (3) in an opposite mode;
the push rod structure (5) is connected with the armature structure (21) and the movable spring plate (3) and comprises a first plug end (51) inserted in the first mounting hole (6) and a second plug end (52) inserted in the second mounting hole (7); the push rod structure (5) is inserted between the armature structure (21) and the movable spring (3) from the upper part of the installation space, and has a first state of driving the first plug end (51) to obliquely downwards penetrate through the group of static springs (4) and then to be inserted into the first installation hole (6), and a second state of driving the second plug end (52) to horizontally insert into the second installation hole (7) towards one side of the armature structure (21).
2. An electromagnetic relay mounting structure according to claim 1, characterized in that: lie in a set of between movable spring (3) and armature structure (21) seted up on quiet spring (4) and supplied first spigot (51) pass give way hole (40), give way hole (40) for the slot and with first mounting hole (6) set up relatively.
3. An electromagnetic relay mounting structure according to claim 2, characterized in that: the movable spring pieces (3) are arranged on the base (1), and the first mounting holes (6) are round hole structures respectively arranged on the two movable spring pieces (3).
4. An electromagnetic relay mounting structure according to any one of claims 1-3, characterized in that: the push rod structure (5) comprises a baffle part (53) and two push blocks (54) which are oppositely arranged on one side of the baffle part (53) and extend towards the two movable spring pieces (3), the first inserting end (51) is a conical structure which is respectively arranged at the end parts of the two push blocks (54), and the push blocks (54) are matched and abutted against the side surfaces of the movable spring pieces (3) when the first inserting end (51) is inserted into the first mounting hole (6).
5. An electromagnetic relay mounting structure according to claim 4, characterized in that: the armature structure (21) is provided with a middle empty groove, and the second mounting hole (7) is formed by two concave holes which are oppositely arranged on the side edges of the two sides of the middle empty groove.
6. An electromagnetic relay mounting structure according to claim 5, characterized in that: the push rod structure (5) further comprises a protruding portion (55) arranged on the other side of the baffle portion (53), the second plug end (52) is arranged on the square plug block on the protruding portion (55) for being back to the first plug end (51), and the protruding portion (55) is matched and abutted to the side face of the armature structure (21) when the square plug block is inserted into the second mounting hole (7) in a matched mode.
7. An electromagnetic relay mounting structure according to claim 5 or 6, characterized in that: the magnetic circuit mechanism (2) comprises a coil assembly (23) and a yoke iron (22), wherein a pressure spring piece (24) penetrating through a middle empty groove and abutting against the armature structure (21) is arranged on the yoke iron (22).
8. An electromagnetic relay mounting structure according to claim 7, characterized in that: the two groups of static reeds (4) comprise two first reeds (41) and two second reeds (42) which are respectively opposite to the two movable reeds (3), and the two movable reeds (3) are kept in normally closed contact with the two first reeds (41) in the power-off release state of the magnetic circuit mechanism (2); the magnetic circuit mechanism (2) drives the push rod structure (5) to move towards one side of the movable reeds in the electrified attracting state so as to push the two movable reeds (3) to be in contact with the two second reeds (42).
9. An electromagnetic relay mounting structure according to claim 8, characterized in that: still install housing (8) on base (1), housing (8) with extend between base (1) and be provided with vertical baffle (11) in the clearance of separation between two movable reed (3).
10. An electromagnetic relay mounting structure according to claim 9, characterized in that: and a transverse partition plate (81) for separating the movable spring leaf and the static spring leaf from the magnetic circuit mechanism (2) is further arranged in the housing (8), and a slotted hole for the two push blocks (54) and the first plug end (51) to pass through is formed in the transverse partition plate (81).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221577541.7U CN217405335U (en) | 2022-06-22 | 2022-06-22 | Electromagnetic relay mounting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221577541.7U CN217405335U (en) | 2022-06-22 | 2022-06-22 | Electromagnetic relay mounting structure |
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| CN217405335U true CN217405335U (en) | 2022-09-09 |
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| CN202221577541.7U Active CN217405335U (en) | 2022-06-22 | 2022-06-22 | Electromagnetic relay mounting structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI811135B (en) * | 2022-10-14 | 2023-08-01 | 百容電子股份有限公司 | Electromagnetic relay |
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2022
- 2022-06-22 CN CN202221577541.7U patent/CN217405335U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI811135B (en) * | 2022-10-14 | 2023-08-01 | 百容電子股份有限公司 | Electromagnetic relay |
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