阅读说明：本技术 一种便装引线式电磁继电器 (Lead type electromagnetic relay convenient to mount ) 是由 唐俊平 于 2021-02-07 设计创作，主要内容包括：本发明涉及电控技术领域,尤其是指一种便装引线式电磁继电器,包括壳体、灭弧单元、接通单元以及两个静触头,灭弧单元和接通单元均设置于壳体内,两个静触头装设于灭弧单元内并经灭弧单元突伸出壳体顶部,接通单元用于导通两个静触头；静触头可拆卸设有延伸件,延伸件的外侧壁设置有用于与外部接电件连接的外螺纹；壳体设置有引线槽,引线槽内设置有导线。本发明通过设置有引线槽,使得导线与接通单元之间的连接于壳体内实现连接,避免了裸露在外界而导致过早氧化；此外,本发明还通过在静触头设置有延伸件,用于与外界可通过焊接或者螺纹连接的方式进行连接,从而使得装配更为简便。(The invention relates to the technical field of electric control, in particular to a lead-type electromagnetic relay convenient to mount, which comprises a shell, an arc extinguishing unit, a switch-on unit and two static contacts, wherein the arc extinguishing unit and the switch-on unit are both arranged in the shell; the static contact is detachably provided with an extension piece, and the outer side wall of the extension piece is provided with an external thread used for being connected with an external electric connection piece; the shell is provided with a lead groove, and a lead is arranged in the lead groove. According to the invention, the lead groove is arranged, so that the connection between the lead and the connection unit is realized in the shell, and premature oxidation caused by exposure outside is avoided; in addition, the extension piece is arranged on the static contact and is used for being connected with the outside in a welding or threaded connection mode, so that the assembly is simpler and more convenient.)

1. The utility model provides a just, adorn pin-type electromagnetic relay which characterized in that: the electromagnetic switch comprises a shell, an electromagnetic unit, an arc extinguishing unit, a switch-on unit and two static contacts, wherein the arc extinguishing unit and the switch-on unit are both arranged in the shell, the two static contacts are arranged in the arc extinguishing unit and protrude out of the top of the shell through the arc extinguishing unit, and the electromagnetic unit is used for driving the switch-on unit to conduct the two static contacts; the static contact is detachably provided with an extension piece, and the outer side wall of the extension piece is provided with an external thread used for being connected with an external electric connection piece; the shell is provided with a lead groove, a lead is arranged in the lead groove, and the lead is used for supplying power to the electromagnetic unit.

2. The ready-to-wire electromagnetic relay according to claim 1, wherein: the top of static contact inwards caves in and forms the extension hole, and the inside wall in extension hole is provided with and is used for the internal thread with external screw thread cooperation.

3. The ready-to-wire electromagnetic relay according to claim 1, wherein: the top of the shell is provided with two connecting holes, the two fixed contacts and the two connecting holes are assembled in a one-to-one correspondence mode, and cushion rubber is arranged between the fixed contacts and the connecting holes.

4. The ready-to-wire electromagnetic relay according to claim 1, wherein: the arc extinguishing unit comprises a mounting rack, a ceramic shell and two magnets, the mounting rack and the ceramic shell are arranged in the shell, the two magnets are arranged on the mounting rack, the ceramic shell is positioned between the two magnets, and the polarities of the two magnets close to each other are opposite; the bottoms of the two static contacts are both positioned in the ceramic shell, and the switch-on unit is used for switching on the two static contacts in the ceramic shell.

5. The easy-to-wire electromagnetic relay according to claim 4, characterized in that: the inner wall of the ceramic shell is provided with a plurality of baffles in a rectangular array, and the baffles are matched with each other to limit the switch-on unit so that the switch-on unit cannot deviate in the lifting process.

6. The easy-to-wire electromagnetic relay according to claim 5, characterized in that: the bottom of one side of the baffle close to the switch-on unit is provided with a guide inclined plane.

7. The easy-to-wire electromagnetic relay according to claim 4, characterized in that: the mounting bracket is provided with two installation positions, and the installation position includes supporting shoe, top stopper and two side stoppers, and magnet is located the supporting shoe top stopper and two between the side stopper, the supporting shoe is used for holding magnet.

8. The easy-to-wire electromagnetic relay according to claim 4, characterized in that: the top of the mounting rack is provided with a plurality of positioning grooves, the inner top wall of the shell is provided with a plurality of positioning lugs, and the positioning lugs and the positioning grooves are assembled in a one-to-one correspondence manner;

the mounting frame comprises a mounting part and two arc extinguishing parts, the two arc extinguishing parts are respectively arranged at two ends of the mounting part, the mounting position is arranged on the arc extinguishing parts, and the ceramic shell is positioned between the two arc extinguishing parts; the installation department is provided with a plurality of mounting holes, and the mounting hole is used for realizing with the casing cooperation the unsettled assembly of mounting bracket.

9. The easy-to-wire electromagnetic relay according to claim 1, characterized in that: the two sides of the shell are respectively provided with an assembling part, the assembling parts are provided with assembling holes, and mounting rings are arranged in the assembling holes;

the mounting ring is made of metal, a notch is formed in the side edge of the mounting ring, and the notch is used for closing so that the mounting ring is placed into the assembling hole after the outer diameter of the mounting ring is reduced.

10. The easy-to-wire electromagnetic relay according to claim 1, characterized in that: the top of the shell is provided with a separation plate which is positioned between the two fixed contacts, and the separation plate is used for separating the two fixed contacts and facilitating grabbing.

Technical Field

The invention relates to the technical field of electric control, in particular to a lead type electromagnetic relay convenient to mount.

Background

The technology of the current relay tends to mature, so that the development direction of the relay field is changed to the development direction of the stability of products, easy assembly and the like. The existing relay has the following defects: firstly, the lead is directly connected with the coil, so that the joint between the lead and the coil is exposed outside and is easy to oxidize; and secondly, the fixed contact is generally externally connected in a welding or winding mode, so that the connection mode is too single, and inconvenience is brought to assembly.

Disclosure of Invention

The invention provides a conveniently-installed lead type electromagnetic relay aiming at the problems in the prior art, which can protect the connection position of a lead and a switch-on unit and enable the connection mode of a static contact to be more various.

In order to solve the technical problems, the invention adopts the following technical scheme:

the invention provides a lead-type electromagnetic relay convenient to mount, which comprises a shell, an electromagnetic unit, an arc extinguishing unit, a switch-on unit and two static contacts, wherein the arc extinguishing unit and the switch-on unit are both arranged in the shell; the static contact is detachably provided with an extension piece, and the outer side wall of the extension piece is provided with an external thread used for being connected with an external electric connection piece; the shell is provided with a lead groove, a lead is arranged in the lead groove, and the lead is used for supplying power to the electromagnetic unit.

Furthermore, the top of the static contact is inwards sunken to form an extension hole, and the inner side wall of the extension hole is provided with an internal thread matched with the external thread.

Furthermore, two connecting holes are formed in the top of the shell, the two fixed contacts and the two connecting holes are assembled in a one-to-one correspondence mode, and cushion rubber is arranged between the fixed contacts and the connecting holes.

Furthermore, the arc extinguishing unit comprises a mounting frame, a ceramic shell and two magnets, the mounting frame and the ceramic shell are both arranged in the shell, the two magnets are both arranged on the mounting frame, the ceramic shell is positioned between the two magnets, and the polarities of the ends, close to each other, of the two magnets are opposite; the bottoms of the two static contacts are both positioned in the ceramic shell, and the switch-on unit is used for switching on the two static contacts in the ceramic shell.

Furthermore, the inner wall of the ceramic shell is provided with a plurality of baffles in a rectangular array, and the baffles are matched with each other to limit the switch-on unit so that the switch-on unit cannot deviate in the lifting process.

Preferably, the bottom of one side of the baffle close to the switch-on unit is provided with a guide inclined plane.

Furthermore, the mounting frame is provided with two mounting positions, each mounting position comprises a supporting block, a top limiting block and two side limiting blocks, the magnet is located between the supporting block and the top limiting block and between the two side limiting blocks, and the supporting block is used for supporting the magnet.

Furthermore, a plurality of positioning grooves are formed in the top of the mounting frame, a plurality of positioning lugs are arranged on the inner top wall of the shell, and the positioning lugs and the positioning grooves are assembled in a one-to-one corresponding mode;

the mounting frame comprises a mounting part and two arc extinguishing parts, the two arc extinguishing parts are respectively arranged at two ends of the mounting part, the mounting position is arranged on the arc extinguishing parts, and the ceramic shell is positioned between the two arc extinguishing parts; the installation department is provided with a plurality of mounting holes, and the mounting hole is used for realizing with the casing cooperation the unsettled assembly of mounting bracket.

Furthermore, assembly parts are respectively arranged on two sides of the shell, assembly holes are formed in the assembly parts, and mounting rings are arranged in the assembly holes;

the mounting ring is made of metal, a notch is formed in the side edge of the mounting ring, and the notch is used for closing so that the mounting ring is placed into the assembling hole after the outer diameter of the mounting ring is reduced.

Furthermore, a partition plate is arranged at the top of the shell and located between the two fixed contacts, and the partition plate is used for separating the two fixed contacts and facilitating grabbing.

The invention has the beneficial effects that: according to the invention, the lead groove is arranged, so that the connection between the lead and the connection unit is realized in the shell, and premature oxidation caused by exposure outside is avoided; in addition, the extension piece is arranged on the static contact and is used for being connected with the outside in a welding or threaded connection mode, so that the assembly is simpler and more convenient.

Drawings

FIG. 1 is a schematic diagram of the present invention.

Fig. 2 is a cross-sectional view of the present invention.

Fig. 3 is an enlarged view of fig. 2 at a.

Fig. 4 is a bottom schematic view of a ceramic shell of the present invention.

Fig. 5 is a front view of the mounting bracket and magnet of the present invention.

Fig. 6 is a top view of fig. 5.

Reference numerals: 1-shell, 2-arc extinguishing unit, 3-switch-on unit, 4-static contact, 5-extension piece, 6-wire, 7-electromagnetic unit, 11-lead slot, 12-connecting hole, 13-cushion rubber, 14-assembly part, 15-assembly hole, 16-mounting ring, 17-gap, 18-division plate, 21-mounting frame, 22-ceramic shell, 23-magnet, 24-mounting position, 41-extension hole, 42-internal thread, 51-external thread, 211-mounting part, 212-arc extinguishing part, 213-mounting hole, 214-positioning groove, 221-baffle, 222-guiding inclined plane, 223-arc pulling slot, 241-supporting block, 242-top stopper, 243-side stopper, 244-positioning mechanism, 245-plug column, 246-elastic piece, 247-extension part, 248-grabbing part.

Detailed Description

In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention. The present invention is described in detail below with reference to the attached drawings.

As shown in fig. 1 to 6, the electromagnetic relay with easy-to-mount lead wires provided by the present invention includes a housing 1, an electromagnetic unit 7, an arc extinguishing unit 2, a switch-on unit 3, and two stationary contacts 4, wherein the arc extinguishing unit 2 and the switch-on unit 3 are both disposed in the housing 1, the two stationary contacts 4 are disposed in the arc extinguishing unit 2 and protrude out of the top of the housing 1 through the arc extinguishing unit 2, and the electromagnetic unit 7 is configured to drive the switch-on unit 3 to conduct the two stationary contacts 4; the static contact 4 is detachably provided with an extending piece 5, and the outer side wall of the extending piece 5 is provided with an external thread 51 used for being connected with an external electric connection piece; the shell body 1 is provided with a lead groove 11, a lead 6 is arranged in the lead groove 11, and the lead 6 is used for supplying power to the electromagnetic unit 7.

According to the invention, the lead groove 11 is arranged, so that the connection between the lead 6 and the connection unit 3 is realized in the shell 1, and premature oxidation caused by exposure outside is avoided; in addition, the extension piece 5 is arranged on the static contact 4 and is used for being connected with the outside in a welding or threaded connection mode, so that the assembly is simpler and more convenient.

In the present embodiment, the top of the stationary contact 4 is recessed inward to form an extension hole 41, and the inner sidewall of the extension hole 41 is provided with an internal thread 42 for matching with the external thread 51. Namely, the fixed contact 4 and the extension piece 5 are connected through threads, so that a worker can determine whether to detach the extension piece 5 according to the actual connection requirement, and parts connected between the extension piece 5 and the fixed contact 4 can be reduced through threaded connection, so that the structure of the invention is simpler and more convenient.

In this embodiment, the top of the housing 1 is provided with two connection holes 12, the two fixed contacts 4 are assembled with the two connection holes 12 in a one-to-one correspondence, and a gasket 13 is disposed between the fixed contacts 4 and the connection holes 12. The inner diameter of the connecting hole 12 is larger than the diameter of the main part of the static contact 4 and smaller than the outer diameter of the head part of the static contact 4, so that the static contact 4 can be more conveniently installed in the shell 1 and protrudes into the arc extinguishing unit 2; the cushion rubber 13 plays a role in sealing, so that a gap between the static contact 4 and the connecting hole 12 is blocked, gas flow between the inside of the arc extinguishing unit 2 and the outside is prevented, and the static contact 4 is prevented from being oxidized too fast due to the existence of oxygen inside the ceramic shell 22.

In this embodiment, the arc extinguishing unit 2 includes a mounting frame 21, a ceramic shell 22 and two magnets 23, the mounting frame 21 and the ceramic shell 22 are both installed in the housing 1, the two magnets 23 are both installed in the mounting frame 21, the ceramic shell 22 is located between the two magnets 23, and the polarities of the ends of the two magnets 23 close to each other are opposite; the bottoms of the two fixed contacts 4 are both located in the ceramic shell 22, and the switch-on unit 3 is configured to switch on the two fixed contacts 4 in the ceramic shell 22. A sealed space is formed by matching the ceramic shell 22 and the shell 1, and the static contact 4 and the switch-on unit 3 are switched on or off in the sealed space, so that the static contact 4 and the switch-on unit 3 are not oxidized too fast when an electric arc is generated, and a protection effect is achieved; the magnet 23 is arranged to elongate the arc through the magnetic field when the arc is generated, so as to achieve the purpose of rapid arc extinction.

Specifically, the inner wall of the ceramic shell 22 is provided with a plurality of baffles 221 in a rectangular array, and the baffles 221 are used for limiting the switch-on unit 3 in a matching manner, so that the switch-on unit 3 cannot deviate in the lifting process. Preferably, a guide slope 222 is provided at a bottom of the shutter 221 near a side of the switch-on unit 3.

That is, if the switch-on unit 3 is shifted when it ascends, the switch-on unit 3 will contact the guide slope 222 on the baffle 221 on one side, and at this time, as the switch-on unit 3 continues to ascend, the switch-on unit 3 will gradually translate to the correct road strength along the guide slope 222, so as to ensure that the switch-on unit 3 is generally displaced along the vertical direction, and the contact with the stationary contact 4 is more reliable.

Specifically, the mounting frame 21 is provided with two mounting positions 24, each mounting position 24 includes a supporting block 241, a top limiting block 242 and two side limiting blocks 243, the magnet 23 is located among the supporting block 241, the top limiting block 242 and the two side limiting blocks 243, and the supporting block 241 is used for supporting the magnet 23. The mounting frame 21 is made of metal, the magnet 23 is mounted on the mounting frame 21 in a magnetic connection mode, and the magnet 23 is limited through the mounting position 24, so that the phenomenon that the arc extinguishing effect is influenced due to the fact that the magnet 23 deviates when the arc extinguishing device shakes or vibrates in a large amplitude is avoided.

Specifically, the top stoppers 242 are respectively provided with a positioning mechanism 244, and the top and the bottom of the magnet 23 are respectively provided with an insertion hole; the positioning mechanism 244 comprises a plug 245 and an elastic member 246, the plug 245 is movably disposed in the top stopper 242, the elastic member 246 is used for driving the plug 245 to protrude out of the bottom of the top stopper 242 so that the plug 245 is inserted into the socket; one side of the inserting column 245 far away from the supporting frame is provided with an abdicating inclined plane.

This elastic component 246 is preferably the spring, elastic component 246 wraps the periphery of post 245, the side of post 245 is provided with the conflict portion, the both ends of elastic component 246 are connected in conflict portion and with supporting shoe 241 or top stopper 242 respectively, make when magnet 23 slides into installation position 24, force earlier to insert the post 245 and retreat and give way, when magnet 23 moved to its jack and aim at post 245, insert post 245 and antedisplacement and insert in the jack under the effect of elastic component 246, thereby reached the location effect to magnet 23, guaranteed through the location of upper and lower both sides that magnet 23 can not take place the skew or break away from mounting bracket 21, make the interference killing feature more excellent, and make mounting bracket 21 and magnet 23's automatic equipment more convenient.

Preferably, the positioning mechanism 244 further comprises a positioning assembly, the positioning assembly comprises an extending portion 247 and a grasping portion 248, the top limit blocks 242 are respectively provided with a sliding slot, the extending portion 247 is connected to the inserting column 245, the extending portion 247 is slidably disposed in the sliding slot, and the grasping portion 248 is disposed in the extending portion. That is, when the magnet 23 needs to be recovered due to scrapping, the magnet 23 can be separated from the mounting frame 21 only by grasping the grasping portion 248 to control the movement of the plug 245, so that the plug 245 exits the insertion hole, thereby achieving the effect of quick detachment.

Specifically, a plurality of arc-pulling grooves 223 are respectively formed on two sides of the ceramic shell 22, and the arc-pulling grooves 223 are located between the fixed contact 4 and the magnet 23. This many settings of drawing arc groove 223 for when magnet 23 elongates electric arc, divide into the multistage and get into the difference and draw the arc groove 223 in to electric arc, thereby let electric arc extinguish more soon, promoted arc extinguishing efficiency.

Specifically, a plurality of positioning grooves 214 are formed in the top of the mounting frame 21, a plurality of positioning bumps are formed in the inner top wall of the shell 1, and the positioning bumps and the positioning grooves 214 are assembled in a one-to-one correspondence manner, so that the positioning and mounting effects of the mounting frame 21 are realized, and the positions of the two magnets 23 are ensured to correspond to the positions of the static contacts 4.

The mounting frame 21 comprises a mounting portion 211 and two arc extinguishing portions 212, the two arc extinguishing portions 212 are respectively arranged at two ends of the mounting portion 211, the mounting position 24 is arranged on the arc extinguishing portions 212, and the ceramic shell 22 is arranged between the two arc extinguishing portions 212; the mounting portion 211 is provided with a plurality of mounting holes 213, and the mounting holes 213 are used for being matched with the shell 1 to realize the suspended assembly of the mounting frame 21. The mounting holes 213 are assembled with the housing 1 by screws or other methods, so that the mounting frame 21 is suspended to make the magnets 23 located at the periphery of the two stationary contacts 4, thereby ensuring the arc extinguishing effect.

In the embodiment, two sides of the housing 1 are respectively provided with an assembling portion 14, the assembling portion 14 is provided with an assembling hole 15, and a mounting ring 16 is arranged in the assembling hole 15; the mounting ring 16 is made of metal, and the side of the mounting ring 16 is provided with a notch 17, and the notch 17 is used for closing so that the mounting ring 16 is placed into the assembly hole 15 after the outer diameter is reduced. Because the shell 1 is mostly made of plastic, the cost is saved, and the plastic assembly hole 15 is easy to be excessively worn or damaged during fixing, the installation ring 16 is arranged in the assembly hole 15 and used for preventing the assembly hole 15 from directly contacting with external parts, so that the excessive wear or damage of the assembly hole 15 is avoided, and workers can more efficiently fix the invention.

The notch 17 is arranged so that when the mounting ring 16 is assembled, the outer diameter of the mounting ring 16 can be reduced to a value enough to be placed into the mounting hole 15, and after the mounting hole 15 is placed into the mounting hole 15, the mounting hole 213 is in contact with the inner side wall of the mounting hole 15 through the self-recovery deformation characteristic, so that an interaction force exists between the mounting hole 15 and the mounting ring 16, and the mounting ring 16 cannot fall out of the mounting hole 15.

In this embodiment, a partition plate 18 is disposed at the top of the housing 1, the partition plate 18 is located between the two stationary contacts 4, and the partition plate 18 is used for separating the two stationary contacts 4 and facilitating grasping. The partition plate is used for separating the two static contacts 4, so that the two static contacts 4 are prevented from being short-circuited or being switched on due to electric arcs, and the safety is ensured; in addition, the arrangement of the partition plate 18 is also used for realizing the picking of the invention by grabbing the partition plate 18, so that the picking is more stable and convenient.

Although the present invention has been described with reference to the above preferred embodiments, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.