Small-sized suck-back structure relay

Abstract

The utility model relates to a small-sized suck-back structure relay. The small-sized suck-back structure relay comprises a mounting shell with an opening at one end, a bottom plate and a relay framework, the bottom plate is detachably arranged at the opening of the mounting shell to form a mounting cavity; the relay framework is detachably arranged on the bottom plate; a first small static reed, a second small static reed, a first pin, a second pin, a movable reed, an armature, a yoke, an iron core and an electromagnetic coil are arranged on the relay framework; the first small-sized static reed and the second small-sized static reed are adopted, the stroke between the contact and the pin is short, the response is fast, and the first small-sized static reed and the second small-sized static reed are independent pins, so that the problem of signal deviation is avoided; the small static reed uses fewer materials, is smaller in size and weight, can be quickly and conveniently installed on a relay framework in a clamping mode, does not need to additionally add fixing pieces, and better meets the high-efficiency production requirement.

Description

Technical Field

[0001] The utility model relates to the technical field of relays, and more specifically, to a small-sized reverse suction structure relay. Background Art

[0002] A relay is an electrical control device, which is actually an "automatic switch" that controls the operation of a large current through a small current. A relay generally includes an electromagnetic part and a contact group. The electromagnetic part can realize the conduction and disconnection of the circuit by controlling the closing and separation of different contacts in the contact group, thereby achieving the purpose of protecting the circuit; most of the relays currently used on the market are traditional positive suction relays, which have a long reed stroke and consume more materials. The reverse suction relay can make up for the problem of excessive consumption of materials in the positive suction relay, such as a reverse suction clapping relay with patent publication number CN213340231 U, but this traditional reverse suction relay still has some problems, the reed material used is more, the stroke between the pin and the contact is longer, one reed and the other reed share the pin, which easily causes the relay to not work properly; and when the reed is installed on the frame, the two reeds are placed in the appropriate position of the frame in turn, and then the reed is fixed to the frame with a fixing plate, and the installation steps are cumbersome and inconvenient to use. Utility Model Content

[0003] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a small-sized reverse suction structure relay to solve the problems mentioned in the above background technology.

[0004] The above technical objectives of the utility model are achieved through the following technical solutions: a small reverse suction structure relay, comprising: a mounting shell, a base plate, and a relay frame; an opening is provided on one end of the mounting shell; the base plate cover is provided at the opening to form a mounting cavity; the relay frame is detachably arranged in the mounting cavity; the relay frame is provided with: a first small static reed, a second small static reed, a first pin, a second pin, a moving reed, an armature, a yoke, an iron core, and an electromagnetic coil; one end of the first pin is electrically connected to the electromagnetic coil, and the other end passes through the base plate and is placed on the outside of the base plate; one end of the second pin is electrically connected to the electromagnetic coil, and the other end passes through the base plate and is placed on the outside of the base plate; the iron core is located in the center of the electromagnetic coil; one end of the armature is connected to The yoke is rotatably connected; one end of the movable spring is fixedly connected to the armature; when the electromagnetic coil is energized, the other end of the armature is magnetically connected to the iron core, and the extended end of one end of the movable spring abuts against one end of the second small static spring; when the electromagnetic coil is not energized, the extended end of one end of the movable spring abuts against one end of the first small static spring; the other end of the movable spring passes through the inner wall of the base plate and is placed on the outer side of the base plate; the other end of the first small static spring passes through the base plate and is placed on the outer side of the base plate; the other end of the second small static spring passes through the base plate and is placed on the outer side of the base plate; the second small static spring is provided with a first connecting piece for limiting and fixing the second small static spring; the first connecting piece is clamped with the relay frame.

[0005] Optionally, the first small static spring piece includes: a first contact mounting plate, a first contact, a first bending portion, and a first contact pin; the first contact pin can be snap-connected with the relay frame; the first contact is arranged on one end of the first contact mounting plate; the first bending portion is arranged on the other end of the first contact mounting plate; one end of the first contact pin is fixedly connected to the first bending portion, and the other end passes through the bottom plate and is placed on the outside of the bottom plate; the first contact can abut against the moving spring piece.

[0006] Optionally, the second small static spring piece includes a second contact mounting plate, a second contact, a second bending portion, and a second contact foot; the second contact is arranged on one end of the second contact mounting plate; the second bending portion is arranged on the other end of the second contact mounting plate; one end of the second contact foot is fixedly connected to the second bending portion, and the other end passes through the bottom plate and is placed on the outside of the bottom plate; one end of the first connecting member is fixedly connected to the second contact mounting plate; the second contact can abut against the moving spring piece.

[0007] Optionally, a moving contact is provided on the extending end of the moving spring piece and is located between the first contact and the second contact; the moving contact can abut against the first contact and the second contact respectively.

[0008] Optionally, a first slot adapted to the first contact pin is provided on the relay frame.

[0009] Optionally, a second slot adapted to the first connecting member is provided on the relay frame.

[0010] Optionally, the electromagnetic coil is an enameled wire.

[0011] Optionally, the first contact mounting plate, the first bending portion, and the first contact pin are integrally formed.

[0012] Optionally, the second contact mounting plate, the second bending portion, the first connecting member and the second contact pin are integrally formed.

[0013] In summary, the utility model has the following beneficial effects:

[0014] 1. The small reverse suction structure relay of the utility model adopts a first small static spring piece and a second small static spring piece, the travel between the contact and the pin is short, the response is fast, and the first small static spring piece and the second small static spring piece both use separate pins, and the problem of signal deviation will not occur; the small static spring piece uses less material, has a smaller volume and weight, and can be quickly and conveniently installed on the relay frame by snap-on connection, without the need for additional fixings, which is more in line with high-efficiency production requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is the main structure diagram of the utility model;

[0016] Figure 2 It is a schematic diagram of the structure of the utility model when assembled;

[0017] Figure 3 It is an exploded schematic diagram of the parts of the utility model;

[0018] Figure 4 It is a schematic diagram of the specific structure of the first small static spring piece of the utility model;

[0019] Figure 5 It is a specific structural schematic diagram of the second small static spring piece of the utility model.

[0020] In the figure: 1. mounting shell; 2. bottom plate; 3. relay frame; 31. first small static spring; 32. second small static spring; 33. first pin; 34. second pin; 35. moving spring; 36. armature; 37. yoke; 38. core; 39. electromagnetic coil; 311. first contact mounting plate; 312. first contact; 313. first bending portion; 314. first contact pin; 321. second contact mounting plate; 322. second contact; 323. second bending portion; 324. second contact pin; 325. first connecting piece; 351. moving contact. DETAILED DESCRIPTION

[0021] In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. Several embodiments of the utility model are given in the accompanying drawings. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein.

[0022] In the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances. The terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0023] In the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or the first and second features being in contact not directly but through another feature between them. Moreover, the first feature being "above", "above" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature. The terms "vertical", "horizontal", "left", "right", "above", "below" and similar expressions are for illustrative purposes only, and 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 therefore cannot be understood as a limitation on the present invention.

[0024] The utility model is described in detail below in conjunction with the accompanying drawings and embodiments.

[0025] The utility model provides a small reverse suction structure relay, such as Figure 1 As shown, it includes: a mounting shell 1, a base plate 2, and a relay skeleton 3; an opening is set on one end of the mounting shell 1; the base plate 2 is covered at the opening to form a mounting cavity; the relay skeleton 3 is detachably arranged in the mounting cavity; the relay skeleton 3 is provided with: a first small static spring piece 31, a second small static spring piece 32, a first pin 33, a second pin 34, a moving spring piece 35, an armature 36, a yoke 37, an iron core 38, and an electromagnetic coil 39; one end of the first pin 33 is electrically connected to the electromagnetic coil 39, and the other end passes through the base plate 2 and is placed on the outside of the base plate 2; one end of the second pin 34 is electrically connected to the electromagnetic coil 39, and the other end passes through the base plate 2 and is placed on the outside of the base plate 2; the iron core 38 is located at the center of the electromagnetic coil 39; one end of the armature 36 is rotatably connected to the yoke 37; One end is fixedly connected to the armature 36; when the electromagnetic coil 39 is energized, the other end of the armature 36 is magnetically connected to the iron core 38, and the extended end of one end of the movable spring piece 35 abuts against one end of the second small static spring piece 32; when the electromagnetic coil 39 is not energized, the extended end of one end of the movable spring piece 35 abuts against one end of the first small static spring piece 31; the other end of the movable spring piece 35 passes through the inner wall of the base plate 2 and is placed on the outer side of the base plate 2; the other end of the first small static spring piece 31 passes through the base plate 2 and is placed on the outer side of the base plate 2; the other end of the second small static spring piece 32 passes through the base plate 2 and is placed on the outer side of the base plate 2; the second small static spring piece 32 is provided with a first connecting piece 325 for limiting and fixing the second small static spring piece 32; the first connecting piece 325 is clamped with the relay frame 3.

[0026] Specifically, the first small static spring piece 31 and the second small static spring piece 32 can be directly snap-fitted and installed on the relay frame 3, without the need for additional fixing parts to fix the first small static spring piece 31 and the second small static spring piece 32; the first small static spring piece 31 and the second small static spring piece 32 can be used to reduce the overall volume and weight of the relay, and the trigger stroke of the first small static spring piece 31 and the second small static spring piece 32 is shorter and the response speed is faster.

[0027] Specifically, a mounting tube for accommodating the iron core 38 is provided on the relay frame 3, and the electromagnetic coil 39 is sleeved on the outside of the mounting tube. When the electromagnetic coil 39 is powered, the electromagnetic coil 39 will magnetize the iron core 38 in the mounting tube, making it magnetic to attract the armature 36.

[0028] Furthermore, the first small static spring piece 31 includes: a first contact mounting plate 311, a first contact 312, a first bending portion 313, and a first contact pin 314; the first contact pin 314 can be clamped with the relay skeleton 3; the first contact 312 is arranged on one end of the first contact mounting plate 311; the first bending portion 313 is arranged on the other end of the first contact mounting plate 311; one end of the first contact pin 314 is fixedly connected to the first bending portion 313, and the other end passes through the base plate 2 and is placed on the outside of the base plate 2; the first contact 312 can abut against the moving spring piece 35.

[0029] Specifically, quick installation is achieved by snapping the first contact pin 314 and the relay frame 3 together, the first contact 312 is mounted on the first contact mounting plate 311, the travel between the first contact 312 and the first contact pin 314 is short, and the signal triggering and transmission speed is faster.

[0030] Furthermore, the second small static spring piece 32 includes a second contact mounting plate 321, a second contact 322, a second bending portion 323, and a second contact foot 324; the second contact 322 is arranged on one end of the second contact mounting plate 321; the second bending portion 323 is arranged on the other end of the second contact mounting plate 321; one end of the second contact foot 324 is fixedly connected to the second bending portion 323, and the other end passes through the base plate 2 and is placed on the outside of the base plate 2; one end of the first connecting piece 325 is fixedly connected to the second contact mounting plate 321; the second contact 322 can abut against the moving spring piece 35.

[0031] Specifically, quick installation is achieved by snapping the second contact pin 324 and the relay frame 3 together, the second contact 322 is mounted on the second contact mounting plate 321, the travel between the second contact 322 and the second contact pin 324 is short, and the signal triggering and transmission speed is faster.

[0032] Furthermore, a moving contact 351 is disposed on the extended end of the moving spring piece 35 and is located between the first contact 312 and the second contact 322 ; the moving contact 351 can abut against the first contact 312 and the second contact 322 , respectively.

[0033] Specifically, the switching output between different signals is realized by the respective abutment between the movable contact 351 and the first contact 312 and the second contact 322 .

[0034] Furthermore, a first slot adapted to the first contact pin 314 is formed on the relay frame 3 .

[0035] Specifically, the first contact pin 314 on the first small static spring piece 31 is snapped into the slot to achieve faster installation.

[0036] Furthermore, a second slot adapted to the first connecting member 325 is provided on the relay frame 3 .

[0037] Specifically, the first connecting member 325 on the second small static spring piece 32 is snapped into the second snap-in slot, so that the second small static spring piece 32 can be quickly installed.

[0038] Furthermore, the electromagnetic coil 39 is an enameled wire.

[0039] Furthermore, the first contact mounting plate 311 , the first bending portion 313 , and the first contact pin 314 are integrally formed.

[0040] Specifically, the one-piece molding process improves the structural strength of the first small static spring piece 31 and further increases its service life.

[0041] Furthermore, the second contact mounting plate 321 , the second bending portion 323 , the first connecting member 325 and the second contact pin 324 are integrally formed.

[0042] Specifically, the one-piece molding process improves the structural strength of the second small static spring piece 32 and further increases its service life.

[0043] In this embodiment, the width of the material strip required for the production of the traditional first static reed piece and the second static reed piece is 32.5 mm, and the width of the first small static reed piece 31 and the second small static reed piece 32 produced in the utility model is 25 mm, thereby achieving less consumables and higher production efficiency while maintaining unchanged performance.

[0044] In the specific implementation process, the first pin 33, the second pin 34, the moving spring 35, the armature 36, the yoke 37, the iron core 38, and the electromagnetic coil 39 are sequentially installed on the relay frame 3, and then the first small static spring 31 and the second small static spring 32 are sequentially clamped and set in the first clamping groove and the second clamping groove on the relay frame 3. No additional fixing parts are required. After the assembled relay frame 3 is installed in the installation shell 1, the bottom plate 2 is covered to complete the installation. The whole process does not require the use of additional fixing parts to fix and install the components therein, and the assembly is convenient and quick.

[0045] When the first pin 33 and the second pin 34 do not supply power to the electromagnetic coil 39, the electromagnetic coil 39 does not magnetize the iron core 38. At this time, the iron core 38 does not adsorb the armature 36. Due to the gravity of the armature 36, the movable spring 35 on the armature 36 is always at the lower side, so that the movable contact 351 on the movable spring 35 abuts against the first contact 312 on the first small static spring 31, and the signal is output from the first contact pin 314 on the first small static spring 31.

[0046] When the first pin 33 and the second pin 34 supply power to the electromagnetic coil 39, the electromagnetic coil 39 magnetizes the iron core 38, and the iron core 38 absorbs the armature 36, so that the armature 36 overcomes its own gravity and drives the movable spring 35 on the armature 36 to move upward, so that the movable contact 351 on the movable spring 35 abuts against the second contact 322 on the second small static spring 32, so that the signal is output from the second contact pin 324 on the second small static spring 32;

[0047] In the process of outputting different signals, two different signal outputs are output through different first contact pins 314 and second contact pins 324, the signals will not conflict, and the relay can work normally.

[0048] The utility model discloses a small-sized reverse suction structure relay, in which a first small-sized static spring piece and a second small-sized static spring piece can be quickly clamped and arranged on a relay frame without adding additional fixing parts; the first small-sized static spring piece and the second small-sized static spring piece have less consumable materials, a shorter travel between a contact point and a contact foot, and a faster response speed.

[0049] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A small-sized reverse suction structure relay, characterized in that: include: Install the housing, base plate, and relay frame; An opening is provided on one end of the mounting shell; the bottom plate cover is provided at the opening to form a mounting cavity; the relay frame is detachably provided in the mounting cavity; The relay frame is provided with: a first small static spring piece, a second small static spring piece, a first pin, a second pin, a moving spring piece, an armature, a yoke, an iron core, and an electromagnetic coil; One end of the first pin is electrically connected to the electromagnetic coil, and the other end passes through the bottom plate and is placed outside the bottom plate; one end of the second pin is electrically connected to the electromagnetic coil, and the other end passes through the bottom plate and is placed outside the bottom plate; The iron core is located at the center of the electromagnetic coil; one end of the armature is rotatably connected to the yoke; one end of the movable spring is fixedly connected to the armature; when the electromagnetic coil is energized, the other end of the armature is magnetically connected to the iron core, and the extended end of one end of the movable spring abuts against one end of the second small static spring; When the electromagnetic coil is not energized, the extended end of one end of the movable spring piece abuts against one end of the first small static spring piece; the other end of the movable spring piece passes through the inner wall of the bottom plate and is placed on the outer side of the bottom plate; The other end of the first small static spring piece passes through the base plate and is placed on the outside of the base plate; the other end of the second small static spring piece passes through the base plate and is placed on the outside of the base plate; the second small static spring piece is provided with a first connecting piece for limiting and fixing the second small static spring piece; the first connecting piece is clamped with the relay frame.

2. A small-sized reverse suction structure relay according to claim 1, characterized in that: The first small static spring piece includes: a first contact mounting plate, a first contact, a first bending portion, and a first contact foot; The first contact pin can be clamped with the relay frame; the first contact point is arranged on one end of the first contact mounting plate; the first bending portion is arranged on the other end of the first contact mounting plate; one end of the first contact pin is fixedly connected to the first bending portion, and the other end passes through the bottom plate and is placed on the outside of the bottom plate; The first contact point can abut against the movable spring piece.

3. A small-sized reverse suction structure relay according to claim 2, characterized in that: The second small static spring piece includes a second contact mounting plate, a second contact, a second bending portion, and a second contact foot; The second contact is arranged on one end of the second contact mounting plate; the second bending portion is arranged on the other end of the second contact mounting plate; one end of the second contact pin is fixedly connected to the second bending portion, and the other end passes through the bottom plate and is arranged outside the bottom plate; One end of the first connecting member is fixedly connected to the second contact mounting plate; the second contact can abut against the movable spring sheet.

4. A small-sized reverse suction structure relay according to claim 3, characterized in that: A moving contact is disposed on the extended end of the moving spring piece and is located between the first contact and the second contact; the moving contact can abut against the first contact and the second contact respectively.

5. A small-sized reverse suction structure relay according to claim 2, characterized in that: The relay frame is provided with a first slot matched with the first contact pin.

6. A small-sized reverse suction structure relay according to claim 1, characterized in that: The relay frame is provided with a second slot adapted to the first connecting member.

7. A small-sized reverse suction structure relay according to claim 1, characterized in that: The electromagnetic coil is an enameled wire.

8. A small-sized reverse suction structure relay according to claim 2, characterized in that: The first contact mounting plate, the first bending portion, and the first contact pin are integrally formed.

9. A small-sized reverse suction structure relay according to claim 3, characterized in that: The second contact mounting plate, the second bending portion, the first connecting member and the second contact pin are integrally formed.

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