CN113611577A

CN113611577A - Electromagnetic relay based on plug-in mode and capable of realizing replaceable coil structure

Info

Publication number: CN113611577A
Application number: CN202111178029.5A
Authority: CN
Inventors: 张庆
Original assignee: Shenzhen Xindaowei Technology Co ltd
Current assignee: Shenzhen Xindaowei Technology Co ltd
Priority date: 2021-10-09
Filing date: 2021-10-09
Publication date: 2021-11-05
Anticipated expiration: 2041-10-09
Also published as: CN113611577B

Abstract

The invention relates to an electromagnetic relay, in particular to an electromagnetic relay based on a plug-in mode and capable of realizing a replaceable coil structure. It includes relay subassembly and plug-in type coil pack, the relay subassembly includes the base, and the top of base is equipped with a extension board, and one side of pushing up the extension board is equipped with the side extension board, and the outside of side extension board is equipped with two static reed, and one side that two static reed are relative is equipped with the contact, pushes up the top of extension board and still installs the movable contact spring. According to the coil winding device, the coil part in the winding process is extruded by the arranged pressure plate, so that the coil part is always attached to the coil part on the winding side, the tightness degree in the coil winding process is improved, the pressure plate continues to extrude the wound coil after winding is completed, the coil is limited, the problem that the coil is easy to loose due to shaking after winding is solved, and meanwhile, the coil is replaced by inserting the connection plate and the top supporting plate.

Description

Electromagnetic relay based on plug-in mode and capable of realizing replaceable coil structure

Technical Field

The invention relates to an electromagnetic relay, in particular to an electromagnetic relay based on a plug-in mode and capable of realizing a replaceable coil structure.

Background

The electromagnetic relay is an electronic control device, it has control system and controlled system, and is usually used in automatic control circuit, and it is an "automatic switch" which uses smaller current and lower voltage to control larger current and higher voltage, so that it can play the role of automatic regulation, safety protection and switching circuit in the circuit.

Electromagnetic induction refers to a conductor placed in a changing magnetic flux, and generates an electromotive force, which is called induced electromotive force or induced electromotive force, and if the conductor is closed into a loop, the electromotive force drives electrons to flow, so that an induced current is formed, and the larger the number of turns of an induction coil is, the larger the electromotive force is generated.

However, the number of turns of the induction coil is often required to be controlled in the process of specific use, so that the whole coil, namely the iron core, is required to be replaced by disassembling the electromagnetic relay, which is very inconvenient, the precision of the winding coil is difficult to improve in the current replacement process, and the winding coil is easy to loose and fall off due to shaking.

Disclosure of Invention

The present invention is directed to an electromagnetic relay with a replaceable coil structure based on a plug-in manner, so as to solve the problems in the background art.

In order to realize the above-mentioned purpose, provide the electromagnetic relay based on removable formula coil structure is realized to grafting mode, including relay assembly and plug-in type coil assembly, relay assembly includes the base, and the top of base is equipped with a extension board, and one side of a extension board is equipped with the side extension board, and the outside of side extension board is equipped with two static reed, and one side that two static reed are relative is equipped with the contact, and the movable contact spring is still installed at the top of a extension board, and the bottom of movable contact spring is located between two static reed, and the inboard of movable contact spring is equipped with armature, installs the iron core between top extension board and the side extension board, and plug-in type coil assembly sets up outside the iron core, plug-in type coil assembly includes at least:

the outer side of the winding pipe is provided with a connecting disc, the connecting disc is in splicing fit with the top supporting plate, the iron core is positioned in the winding pipe after splicing, and a lug is further arranged on the outer side of the connecting disc so as to be convenient to hold and apply force;

a coil spirally wound around the outside of the winding tube;

the pressure disk, pressure disk and winding pipe sliding connection, and the winding pipe is relative to be equipped with the go-between with one side of connection pad, fixedly connected with compression spring between go-between and the pressure disk.

As a further improvement of the technical scheme, a plurality of sliding grooves are annularly formed in the outer portion of the winding pipe, sliding columns are arranged in the sliding grooves, the positions, corresponding to the sliding grooves, of the inner side of the pressure plate protrude outwards, the protruding portions are connected with the sliding columns in a sliding mode, and the pressure springs are installed on the outer portion of the sliding columns.

As a further improvement of the technical scheme, the outside of the winding pipe is annularly provided with a plurality of radiating grooves, and the radiating grooves are arranged between two adjacent sliding grooves.

As a further improvement of the technical scheme, the bottom of the top supporting plate is provided with a separation plate, the separation plate is of an annular structure and wraps the outside of the plug-in type coil assembly, and the bottom of the separation plate is fixedly connected with the bottom wall of the top supporting plate.

As a further improvement of the technical scheme, the top support plate is in threaded connection with the connecting disc.

As a further improvement of the technical scheme, the outer wall of the top supporting plate on one side of the connecting disc is provided with a plurality of limiting plates in an annular shape by taking the connecting disc as a circle center, the limiting plates are rotatably connected with the top supporting plate, and the joints are provided with return springs.

As a further improvement of the technical scheme, the end part of the limiting plate is provided with a roller which is rotatably connected with the limiting plate, and the inner side outer edge of the connecting plate is an arc-shaped surface.

As a further improvement of this technical scheme, the bottom of base still is equipped with the pin, wherein:

the pins are respectively and correspondingly arranged at the bottoms of the top support plate, the side support plate and the static reed, and the pins are fixedly connected with the corresponding top support plate, the side support plate and the static reed so as to achieve the purpose of power connection.

As a further improvement of the technical scheme, two pins are arranged at the bottom of the side branch plate, and the two static reeds are connected with one pin together.

As a further improvement of the technical scheme, the top of the top supporting plate is provided with an observation groove.

Compared with the prior art, the invention has the beneficial effects that:

1. in this electromagnetic relay based on removable formula coil structure is realized to grafting mode, coil part through the pressure disk extrusion winding in-process that sets up, realize this part and the coil part laminating of winding side all the time, thereby improve the inseparable degree among the coil winding process, and after the winding is accomplished, the pressure disk continues the coil after the extrusion winding, and then realized spacing to the coil, received after having solved the coil winding and rocked easy loose problem, peg graft through connection pad and top backup pad simultaneously, accomplish the change to the coil.

2. In this electromagnetic relay based on removable formula coil structure is realized to grafting mode, the traveller through in the spout leads to the pressure disk to improve the gliding stability of pressure disk, solve the pressure disk and slide and take place the unstable problem of slope and lead to the atress in the slip, and improve the mobility of winding intraductal air through spout and radiating groove cooperation, thereby play the radiating purpose of coil.

3. In the electromagnetic relay realizing the replaceable coil structure based on the plugging mode, the connecting disc and the winding pipe are fixed by the meshing force generated by threaded connection, so that the stability of plugging the connecting disc and the top supporting plate is improved, and the problem that the connecting disc is easy to fall off after plugging is solved.

4. In this electromagnetic relay based on removable formula coil construction is realized to grafting mode, the limiting plate receives reset spring's elastic force effect to carry on spacingly to having realized that disect insertion can carry on spacingly to the connection pad, it is loaded down with trivial details to have solved the threaded connection step, and the problem that the serious unable use of back thread line wearing and tearing used for a long time moreover has improved the spacing convenience of connection pad.

5. In this electromagnetic relay based on removable formula coil structure is realized to grafting mode, can judge the number of turns of coil through the scale plate that the observation indicator board corresponds to improve the accuracy of naked eye direct observation coil number of turns.

Drawings

FIG. 1 is a schematic view of the overall structure of embodiment 1 of the present invention;

FIG. 2 is an exploded view of the entire structure of embodiment 1 of the present invention;

fig. 3 is a structural exploded view of a plug-in type coil block according to embodiment 2 of the present invention;

FIG. 4 is a schematic view of a threaded connection structure of a top support plate and a connecting disc in embodiment 5 of the invention;

FIG. 5 is a schematic view of a wound tube structure according to example 3 of the present invention;

fig. 6 is a schematic side structure view of a top support plate and a limiting plate in embodiment 6 of the present invention;

fig. 7 is a schematic diagram of a limiting plate structure according to embodiment 6 of the present invention;

FIG. 8 is a schematic view of the structure of a roof support plate and a viewing slot in example 7 of the present invention;

FIG. 9 is a sectional view of a structure of a top support plate and an indicator plate according to embodiment 8 of the present invention;

FIG. 10 is a schematic diagram of a structure of a top support plate and a spacer plate according to embodiment 4 of the present invention;

fig. 11 is a schematic structural view of a top support plate and an indication column in embodiment 9 of the present invention.

The various reference numbers in the figures mean:

100. a relay assembly;

110. a base; 120. a pin; 130. a top support plate; 131. a limiting plate; 1311. a roller; 1312. a return spring; 132. an observation tank; 1321. an indicator column; 1322. a guide wheel; 133. a scale plate; 134. a separator plate; 140. a stationary reed; 141. a contact; 150. a movable spring plate; 151. an armature; 160. an iron core; 170. a side support plate;

200. a plug-in coil assembly;

210. winding the tube; 211. a chute; 212. a connecting disc; 213. a heat sink;

220. a coil;

230. a platen; 231. a pressure spring; 232. an indicator panel.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Example 1

Referring to fig. 1 and 2, an object of the present embodiment is to provide an electromagnetic relay based on a plug-in mode to realize a replaceable coil structure, including a relay assembly 100 and a plug-in coil assembly 200, where the relay assembly 100 includes a base 110, a top support plate 130 is disposed on the top of the base 110, a side support plate 170 is disposed on one side of the top support plate 130, two static springs 140 are disposed on the outer side of the side support plate 170, a contact 141 is disposed on the opposite side of the two static springs 140, a movable spring 150 is further mounted on the top of the top support plate 130, the bottom of the movable spring 150 is located between the two static springs 140, an armature 151 is disposed on the inner side of the movable spring 150, an iron core 160 is mounted between the top support plate 130 and the side support plate 170, and the plug-in coil assembly 200 is disposed outside the iron core 160.

Specifically, the bottom of the base 110 is further provided with a pin 120, wherein:

the pins 120 are respectively and correspondingly installed at the bottoms of the top support plate 130, the side support plate 170 and the static spring 140, and the pins 120 are fixedly connected with the corresponding top support plate 130, side support plate 170 and static spring 140, so as to achieve the purpose of power connection.

In addition, two pins 120 are provided at the bottom of the side support plate 170, and two stationary blades 140 are commonly connected to one pin 120.

The working principle of the electromagnetic relay in the embodiment is as follows: voltage is applied to the coil 220 through the pins 120 at the bottoms of the top support plate 130 and the side support plate 170, and as long as voltage is applied to two ends of the coil 220, current can be generated in the coil 220, so that by utilizing the principle of electromagnetic effect, the armature 151 overcomes the elastic force of the movable spring 150 to move towards the iron core 160 under the attraction effect of the electromagnetic force of the iron core 160, and the armature 151 is driven to attract the contact 141 on the inner side static spring 140;

when the coil 220 is powered off, the electromagnetic attraction force generated by the iron core 160 disappears, and the armature 151 resets under the elastic force of the movable spring 150 to attract the contact 141 on the outer static spring 140, thereby achieving the purpose of conducting and cutting off in the circuit.

It is worth to say that, for the "normally open, normally closed" contacts of the electromagnetic relay, it can be distinguished as follows: the contacts 141, which are in an open state when the coil 220 is not energized, are referred to as "normally open contacts"; the contact 141 in the on state is referred to as a "normally closed contact".

Example 2

In order to facilitate replacement of the coil 220, the present embodiment is different from embodiment 1 in that please refer to fig. 3, in which:

the plug-in type coil assembly 200 comprises a winding tube 210, a connecting disc 212 is arranged on the outer side of the winding tube 210, the connecting disc 212 is in plug-in fit with the top supporting plate 130, the iron core 160 is positioned in the winding tube 210 after plug-in, and a convex block is further arranged on the outer side of the connecting disc 212 to facilitate holding and applying force in order to facilitate applying force to the connecting disc 212; the coil 220 is spirally wound around the outside of the winding tube 210; the pressure plate 230 is slidably connected with the winding pipe 210, a connecting ring is arranged on one side of the winding pipe 210 opposite to the connecting disc 212, and a pressure spring 231 is fixedly connected between the connecting ring and the pressure plate 230.

When the plug-in type coil assembly 200 is specifically replaced in this embodiment, the coil 220 is firstly wound, the coil 220 is wound outside the winding tube 210, the coil 220 on the winding side continuously extrudes the pressure plate 230 in the winding process, and the coil 220 part in the winding process is always attached to the coil 220 part on the winding side under the action of the elastic force of the pressure spring 231, so that the tightness in the winding process of the coil 220 is improved, and after the winding is completed, the pressure plate 230 continuously extrudes the wound coil 220, so that the limitation on the coil 220 is realized, and the problem that the coil 220 is easy to loose due to shaking after being wound is solved;

after the coil 220 is wound, the winding tube 210 is inserted outside the core 160 by holding the protrusion, and the connecting plate 212 is inserted into the top support plate 130, so as to complete the replacement of the coil 220.

Example 3

In order to improve the stability of the platen 230 sliding along the winding tube 210, the embodiment is improved on the basis of embodiment 2, specifically:

the outside of winding pipe 210 is the annular and is equipped with a plurality of spouts 211, is equipped with the traveller in the spout 211, and the inboard position that corresponds spout 211 of pressure disk 230 is outside outstanding, outstanding part and traveller sliding connection, and pressure spring 231 installs and outside the traveller to lead to pressure disk 230 through a plurality of travelers, with the gliding stability of improvement pressure disk 230, solve pressure disk 230 and slide and take place the slope in the slip and lead to the unstable problem of atress.

Further, as shown in fig. 5, a plurality of heat dissipation grooves 213 are annularly disposed outside the winding tube 210, and the heat dissipation grooves 213 are disposed between two adjacent sliding slots 211, so as to improve the fluidity of air in the winding tube 210 by the matching of the sliding slots 211 and the heat dissipation grooves 213, thereby dissipating heat from the coil 220.

Example 4

In order to prevent dust from entering the winding pipe 210, the embodiment is different from embodiment 3 in that please refer to fig. 10, in which: the bottom of the top supporting plate 130 is provided with a partition plate 134, the partition plate 134 is wrapped outside the plug-in type coil assembly 200 in an annular structure, and the bottom of the partition plate 134 is fixedly connected with the bottom wall of the top supporting plate 130, so that the plug-in type coil assembly 200 is isolated, and dust is prevented from entering the winding pipe 210.

Example 5

In order to improve the stability of the connection disc 212 and the top support plate 130, the embodiment is different from embodiment 1 in that please refer to fig. 4, wherein: the top support plate 130 is in threaded connection with the connecting disc 212, after the winding pipe 210 is inserted, the connecting disc 212 is screwed to be in threaded connection with the top support plate 130, and the connecting disc 212 and the winding pipe 210 are fixed through meshing force generated by threaded connection, so that the stability of the connecting disc 212 and the top support plate 130 in an inserted connection mode is improved, and the problem that the connecting disc 212 is prone to falling off after the connection is achieved.

Example 6

In order to improve the convenience of the limiting of the connecting disc 212, the embodiment is different from embodiment 1 in that please refer to fig. 6, wherein: the outer wall of the top support plate 130 on one side of the connecting disc 212 is provided with a plurality of limiting plates 131 in an annular shape with the connecting disc 212 as a circle center, the limiting plates 131 are rotatably connected with the top support plate 130, and a return spring 1312 is installed at the connection position.

When the embodiment is used specifically, after the connecting disc 212 is inserted into the top support plate 130, the limiting plate 131 is limited by the elastic force of the reset spring 1312 to the connecting disc 212, so that the connecting disc 212 can be limited by direct insertion, the problem that thread connection steps are complex, thread lines are seriously worn and cannot be used after long-time use is solved, and the limiting convenience of the connecting disc 212 is improved.

Further, as shown in fig. 7, the end of the position limiting plate 131 is provided with a roller 1311, the roller 1311 is rotatably connected to the position limiting plate 131, so that damage caused by direct contact between the position limiting plate 131 and the outer wall of the connecting disc 212 during insertion is reduced by rolling of the roller 1311, and the outer edge of the inner side of the connecting disc 212 is an arc-shaped surface, so that the position limiting plate 131 is pressed to the outer side of the connecting disc 212.

Example 7

In order to facilitate quick observation of the winding number of the coil 220, the present embodiment is different from embodiment 4 in that please refer to fig. 8, in which: the top of the top support plate 130 is provided with an observation groove 132 to facilitate quick observation of the coil 220, so that the number of turns of the coil 220 can be judged by observation.

Example 8

In order to improve the accuracy of observation and judgment, the present embodiment is different from embodiment 7 in that please refer to fig. 9, in which: observe the outside of groove 132 and still be equipped with scale plate 133 for show the winding length of coil 220, it is specific, pressure disk 230's top is equipped with indicator plate 232, indicator plate 232 slides in observing groove 132, and the outer end of observing groove 132 is the fretwork state, so that indicator plate 232 shifts out observation groove 132, during the use, can judge the number of turns of coil 220 through the scale plate 133 that the observation indicator plate 232 corresponds, thereby improve the accuracy of the direct observation coil 220 number of turns of naked eye.

Example 9

In order to avoid the hollow portion at the outer end of the observation groove 132 from reducing the stability of the connection between the connection disc 212 and the top support plate 130, the difference between the embodiment and the embodiment 8 is shown in fig. 11, wherein: there is indication post 1321 in observation groove 132 sliding connection, and the outside of indication post 1321 rotates and is connected with leading wheel 1322, and leading wheel 1322 outer wall and observation groove 132 inner wall laminating to reduce the frictional force that the contact of indication post 1321 and observation groove 132 inner wall produced, thereby improve the stability of removal.

When the embodiment is used specifically, the indication column 1321 is moved to the outermost end, then in the process of inserting the winding pipe 210, the pressure plate 230 pushes the indication column 1321 to move forwards, the moving distance of the indication column 1321 represents the length of the winding coil 220 outside the winding pipe 210, the moving distance is judged through the scale plate 133 indicated by the top of the indication column 1321, the number of turns of the winding coil 220 is converted, the indication column 1321 does not need to be moved out of the observation slot 132 in the embodiment, and the problem that the connection stability of the connection disc 212 and the top support plate 130 is reduced by the hollow part of the outer end of the observation slot 132 is solved.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. Electromagnetic relay based on removable formula coil structure is realized to grafting mode, including relay assembly (100) and plug-in type coil assembly (200), relay assembly (100) includes base (110), the top of base (110) is equipped with top extension board (130), one side of top extension board (130) is equipped with side extension board (170), the outside of side extension board (170) is equipped with two static reed (140), one side that two static reed (140) are relative is equipped with contact (141), movable reed (150) are still installed at the top of top extension board (130), the bottom of movable reed (150) is located between two static reed (140), and the inboard of movable reed (150) is equipped with armature (151), install iron core (160) between top extension board (130) and collateral branch board (170), plug-in type coil assembly (200) set up outside iron core (160), its characterized in that: the plug-in coil assembly (200) comprises at least:

the outer side of the winding pipe (210) is provided with a connecting disc (212), the connecting disc (212) is in inserted fit with the top supporting plate (130), and the iron core (160) is positioned in the winding pipe (210) after the connection;

a coil (220), the coil (220) being spirally wound around the outside of the winding tube (210);

the pressing plate (230), the pressing plate (230) and the winding pipe (210) are connected in a sliding mode, a connecting ring is arranged on one side, opposite to the connecting disc (212), of the winding pipe (210), and a pressure spring (231) is fixedly connected between the connecting ring and the pressing plate (230).

2. The electromagnetic relay according to claim 1, wherein the electromagnetic relay comprises: the outside of winding pipe (210) is the annular and is equipped with a plurality of spout (211), is equipped with the traveller in spout (211), and the inboard position that corresponds spout (211) of pressure disk (230) is outside outstanding, outstanding part and traveller sliding connection, and pressure spring (231) installation and traveller outside.

3. The electromagnetic relay according to claim 2, wherein the electromagnetic relay comprises: the outside of winding pipe (210) is the annular and is equipped with a plurality of radiating grooves (213), and radiating groove (213) set up between two adjacent spout (211).

4. The electromagnetic relay according to claim 1, wherein the electromagnetic relay comprises: the bottom of the top support plate (130) is provided with a partition plate (134), the partition plate (134) is of an annular structure and wraps the outside of the plug-in type coil assembly (200), and the bottom of the partition plate (134) is fixedly connected with the bottom wall of the top support plate (130).

5. The electromagnetic relay according to claim 1, wherein the electromagnetic relay comprises: the top support plate (130) is in threaded connection with the connecting disc (212).

6. The electromagnetic relay according to claim 1, wherein the electromagnetic relay comprises: the outer wall of the top support plate (130) on one side of the connecting disc (212) is provided with a plurality of limiting plates (131) in an annular shape by taking the connecting disc (212) as a circle center, the limiting plates (131) are rotatably connected with the top support plate (130), and a reset spring (1312) is arranged at the joint.

7. The electromagnetic relay according to claim 6, wherein the electromagnetic relay comprises: the end part of the limiting plate (131) is provided with a roller (1311), the roller (1311) is rotatably connected with the limiting plate (131), and the outer edge of the inner side of the connecting disc (212) is an arc-shaped surface.

8. The electromagnetic relay according to claim 1, wherein the electromagnetic relay comprises: the bottom of base (110) still is equipped with pin (120), wherein:

the pins (120) are respectively and correspondingly arranged at the bottoms of the supporting plate (130), the side supporting plate (170) and the static spring piece (140), and the pins (120) are fixedly connected with the corresponding supporting plate (130), the side supporting plate (170) and the static spring piece (140).

9. The electromagnetic relay according to claim 8, wherein the electromagnetic relay comprises: two pins (120) are arranged at the bottom of the side support plate (170), and the two static reeds (140) are connected with one pin (120) together.

10. The electromagnetic relay according to claim 1, wherein the electromagnetic relay comprises: the top of the top support plate (130) is provided with an observation groove (132).