CN209457559U - Small size electromagnetic lock - Google Patents
Small size electromagnetic lock Download PDFInfo
- Publication number
- CN209457559U CN209457559U CN201821735505.2U CN201821735505U CN209457559U CN 209457559 U CN209457559 U CN 209457559U CN 201821735505 U CN201821735505 U CN 201821735505U CN 209457559 U CN209457559 U CN 209457559U
- Authority
- CN
- China
- Prior art keywords
- electromagnetic coil
- magnetic core
- electromagnetic
- pedestal
- small size
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Electromagnets (AREA)
Abstract
The utility model discloses a kind of small size electromagnetic locks, including electromagnetic coil, metal holder, lock core and elastic component；Metal holder is U-shaped structure, the metal holder includes bottom wall and the two side walls for being oppositely arranged on the bottom wall two sides, the bottom wall and two side walls constitute one for placing the accommodating space of the electromagnetic coil, the pedestal protruded out into the electromagnetic coil is provided on the bottom wall in the accommodating space, lock core includes integrally formed magnetic core and guide rod cylindrical, the diameter of the magnetic core is greater than the diameter of the guide rod, and the free end of the guide rod is stretched out from the upper end of the electromagnetic coil；Lock core in the utility model small size electromagnetic lock is in the fabrication process, it need not be punched on the smaller guide rod of diameter, reduce manufacture difficulty, so also save on manufacturing cost, and elastic component is sealed in electromagnetic coil, it is not easy to get rusty in use, extends the service life of electromagnetic lock.
Description
Technical field
The utility model relates to electromagnetic lock technical field more particularly to a kind of small size electromagnetic locks.
Background technique
With the development of electronic technology and mechanics of communication, electromagnetic lock is widely used in various control machines in conjunction with two dimensional code
On structure, such as the public shared article placing cabinet used, mailbox.The working principle of electromagnetic lock has been to utilize electromagnetism known to the public
One magnetic core is placed in electromagnetic coil by principle of induction, then a guide rod is connect above magnetic core, which is lock core, after energization,
Electromagnetic coil generates electromagnetic force, control magnetic core movement, and magnetic core is further driven to guide rod movement, completes switch work.In existing skill
In the manufacturing process of art electromagnetic lock, guide rod protrudes from the both ends of electromagnetic coil, and magnetic core is located in electromagnetic coil, in order to connect magnetic core
And guide rod, it is generally punched on guide rod, magnetic core and guide rod grafting, then the sheathed spring on the guide rod of electromagnetic coil bottom end, right
For the bigger electromagnetic lock of size, guide rod is also relatively thicker, and punching is easier, but for (1-2 squares li of small size
Rice) electromagnetic lock, guide rod is all thinner, the technology difficulty of this punching being increased by, and on electromagnetic lock in the prior art
Spring it is exposed outside electromagnetic coil, getting rusty easily leads to electromagnetic lock failure.
Utility model content
The purpose of the utility model is to provide a kind of small size electromagnetic locks, to reduce the production difficulty of small size electromagnetic lock,
Save production cost.
To achieve the goals above, the utility model discloses a kind of small size electromagnetic lock, including electromagnetic coil, metal are solid
Determine frame, lock core and elastic component；The electromagnetic coil provides controllable electric magnetic force；Metal holder is U-shaped structure, and the metal is fixed
Frame includes bottom wall and the two side walls for being oppositely arranged on the bottom wall two sides, and the bottom wall constitutes one with two side walls and is used for
The accommodating space of the electromagnetic coil is placed, is provided on the bottom wall in the accommodating space into the electromagnetic coil
The pedestal protruded out, the lower end of the electromagnetic coil and the bottom wall are tightly connected；Lock core includes integrally formed cylindrical
Magnetic core and guide rod, the diameter of the magnetic core are greater than the diameter of the guide rod, described by the electromagnetic force that the electromagnetic coil provides
Lock core is moved up and down along the centerline direction of the electromagnetic coil, and the free end of the guide rod is stretched from the upper end of the electromagnetic coil
Out, the magnetic core has the first position abutted with the pedestal and the second position far from the pedestal；One end of elastic component
It is abutted with the pedestal, the other end is abutted with the magnetic core, and the elastic component provides permanent to the second position for the magnetic core
The power of movement.
Compared with prior art, the lock core of the utility model small size electromagnetic lock includes magnetic core and integrally formed with magnetic core
One section of guide rod, the guide rod are only stretched out from the upper end of electromagnetic coil, and magnetic core it is solid can be set to metal in moving up and down in electromagnetic coil
The pedestal determined on the bottom wall of frame protrudes into electromagnetic coil, abuts when magnetic core is moved to the first position of bottom with pedestal, separately
Outside, since elastic component is set between pedestal and magnetic core, in electromagnetic lock power loss, by the elastic force of elastic component, by magnetic core
Pedestal is pushed away to the second position, magnetic core guide rod at first position is in the unlocked state, and magnetic core is in second place guide rod
Lock state, it follows that the lock core in the utility model small size electromagnetic lock is in the fabrication process, without smaller in diameter
Guide rod on punch, manufacture difficulty is reduced, then also saving on manufacturing cost, and since magnetic core and pedestal are respectively positioned on electricity
In magnetic coil, the lower end of the electromagnetic coil and the bottom wall are tightly connected, then elastic component is also sealed in electromagnetic coil,
It is not easy to get rusty in use, extends the service life of electromagnetic lock.
Preferably, being provided with the guide post protruded upward on the upper surface of the pedestal, the diameter of the guide post is less than
The diameter of the pedestal, one end opposite with the pedestal is provided with guiding compatible with the guide post on the magnetic core
Hole, when the magnetic core moves down, the pilot hole connects together with the guide post.
Preferably, the guide post is conical structure.
Preferably, the electromagnetic coil is wrapped on a hollow shape cylinder, the pedestal and the lock core are respectively positioned on described
In the cavity of cylinder, the upper end of the cylinder is provided with a round ring boss, and the free end of the guide rod is stretched via the boss
The outside of the cylinder is arrived out, and the boss is for stopping the magnetic core to be pierced by the cylinder.
Preferably, the small size electromagnetic lock further includes a cover plate being socketed on the boss, the cover plate with it is described
Side wall clamping.
Preferably, the small size electromagnetic lock further includes a protective switch being electrically connected with the electromagnetic coil, work as institute
State electric current in electromagnetic coil it is excessive when, the protective switch disconnects the current path of the electromagnetic coil.
Preferably, the protective switch is temperature safety element.
Detailed description of the invention
Fig. 1 is the schematic perspective view of the utility model embodiment small size electromagnetic lock.
Fig. 2 is the decomposition diagram of Fig. 1.
Specific embodiment
For technology contents, structure feature, realization principle and the objects and the effects that the utility model is described in detail, with
Lower combination embodiment simultaneously cooperates attached drawing to be explained in detail.
Above disclosed is only the preferred embodiments of the utility model, cannot limit the utility model certainly with this
Interest field, therefore equivalent variations made according to the patent scope of the utility model still falls within the utility model and covered
Range.
The utility model discloses a kind of small size electromagnetic lock, unlock and shut using electromagnetism power drive lock core, such as Fig. 1 and
Shown in Fig. 2, including electromagnetic coil 1, metal holder 2, lock core 3 and elastic component 4.Electromagnetic coil 1 provides controllable electric magnetic force.Metal
Fixed frame 2 is U-shaped structure, including bottom wall 20 and the two side walls 21 for being oppositely arranged on 20 two sides of bottom wall, bottom wall 20 and two sides
Wall 21 constitutes one for placing the accommodating space 22 of electromagnetic coil 1, i.e. electromagnetic coil 1 is placed in the accommodating space 22, Yu Rong
The pedestal 23 protruded out into electromagnetic coil 1 is provided on bottom wall 20 in 22 between emptying, the lower end of electromagnetic coil 1 and bottom wall 20 are close
Envelope connection.Lock core 3 includes integrally formed magnetic core 30 and guide rod 31 cylindrical, and the diameter of magnetic core 30 is greater than the straight of guide rod 31
Diameter, by the electromagnetic force that electromagnetic coil 1 provides, lock core 3 moves up and down along the centerline direction of electromagnetic coil 1, guide rod 31 from
It is stretched out by holding from the upper end of electromagnetic coil 1, magnetic core 30 has the second of the first position abutted with pedestal 23 and separate pedestal 23
Position.One end of elastic component 4 is abutted with pedestal 23, and the other end is abutted with magnetic core 30, and elastic component 4 is that magnetic core 30 provides perseverance to second
The power of position movement.When 1 power loss of electromagnetic coil, elastic component 4 pushes magnetic core 30 to the second place, and guide rod 31 is at this time
Lock state, when electromagnetic coil 1 must be electric, magnetic core 30 is pulled to pedestal 23 by electromagnetic force, and guide rod 31 is in the unlocked state at this time.
The lock core 3 of the utility model small size electromagnetic lock include magnetic core 30 and with 30 integrally formed one sections of guide rods of magnetic core
31, which only stretches out from the upper end of electromagnetic coil 1, and magnetic core 30 can move up and down in electromagnetic coil 1, and it is solid to be set to metal
The pedestal 23 determined on the bottom wall 20 of frame 2 protrudes into electromagnetic coil 1, and elastic component 4 is set between pedestal 23 and magnetic core 30, thus may be used
Know, the lock core 3 in the utility model small size electromagnetic lock in the fabrication process, is beaten without on the smaller guide rod 31 of diameter
Hole reduces manufacture difficulty, then also saving on manufacturing cost, and since magnetic core 30 and pedestal 23 are respectively positioned on electromagnetic coil
In 1, the lower end of electromagnetic coil 1 and bottom wall 20 are tightly connected, then elastic component 4 is also sealed in electromagnetic coil 1, are being used
Elastic component 4 is not easy to get rusty in journey, extends the service life of electromagnetic lock.In the present embodiment, elastic component 4 is spring.
Further, the guide post 230 protruded upward is provided on the upper surface of pedestal 23, the diameter of guide post 230 is small
One end opposite with pedestal 23 on the diameter of pedestal 23, magnetic core 30 is provided with guide post 230 compatible with guide post 230,
When magnetic core 30 moves down, guide post 230 connects together with pilot hole 300.Since the diameter of magnetic core 30 is straight compared to guide rod 31
Diameter is big, punches relatively easily on magnetic core 30, and by the cooperation of guide post 230 and pilot hole 300, to avoid lock core
3 movement deviates.Elastic component 4 is set in guide post 230, and in the present embodiment, guide post 230 is conical structure, to mention
For more stable support force.
Specifically, electromagnetic coil 1 is wrapped on a hollow shape cylinder 5, and pedestal 23 and lock core 3 are respectively positioned on the cavity of cylinder 5
In, the upper end of cylinder 5 is provided with a round ring boss 50, and the free end of guide rod 31 reaches the outside of cylinder 5 via boss 50,
Boss 50 is for stopping magnetic core 30 to be pierced by cylinder 5.The setting of boss 50, which is eliminated, in the present embodiment carries out limit member to magnetic core 30
Assemble flow is saved in the installation of part.Further, a cover plate 6 is socketed on boss 50, also with Motionless electromagnetic coil 1, cover plate 6
It is clamped with side wall 21, as shown in Fig. 2, two opposite edges of cover plate are provided with card slot 60, corresponding 21 side of two sidewalls
Place is provided with card convex 210, when cover plate 6 is installed, card convex 210 is caught in card slot 60.
A protective switch 7 is also electrically connected in order to protect electromagnetic coil 1 not burnt by overcurrent, on electromagnetic coil 1, when
When electric current in electromagnetic coil 1 is excessive, the current path of 7 cutoff solenoid 1 of protective switch.In the present embodiment, which is opened
Closing 7 is temperature safety element, such as Thermal Cutoffs, the mistake generated in the improper running of Thermal Cutoffs energy inductive electromagnetic coil 1
Heat, so that cut-off loop is to avoid burning electromagnetic coil 1.
Above disclosed is only the preferred embodiments of the utility model, cannot limit the utility model certainly with this
Interest field, therefore equivalent variations made according to the patent scope of the utility model still falls within the utility model and covered
Range.
Claims (7)
1. a kind of small size electromagnetic lock characterized by comprising
Electromagnetic coil provides controllable electric magnetic force；
Metal holder is U-shaped structure, and the metal holder includes bottom wall and is oppositely arranged on the two of the bottom wall two sides
A side wall, the bottom wall and two side walls constitute one for placing the accommodating space of the electromagnetic coil；In the accommodating
The pedestal protruded out into the electromagnetic coil, the lower end of the electromagnetic coil and the bottom are provided on the bottom wall in space
Wall is tightly connected；
Lock core comprising the diameter of integrally formed magnetic core and guide rod cylindrical, the magnetic core is greater than the straight of the guide rod
Diameter, by the electromagnetic force that the electromagnetic coil provides, the lock core is moved up and down along the centerline direction of the electromagnetic coil, institute
The free end of guide rod is stated to stretch out from the upper end of the electromagnetic coil, the magnetic core have the first position abutted with the pedestal and
The second position far from the pedestal；
Elastic component, one end are abutted with the pedestal, and the other end is abutted with the magnetic core, and the elastic component provides for the magnetic core
The power that perseverance is moved to the second position.
2. small size electromagnetic lock according to claim 1, which is characterized in that be provided on the upper surface of the pedestal upwards
The guide post protruded out, the diameter of the guide post are less than the diameter of the pedestal, opposite with the pedestal one on the magnetic core
End is provided with pilot hole compatible with the guide post, when the magnetic core moves down, the pilot hole and the guiding column sleeve
It is connected together.
3. small size electromagnetic lock according to claim 2, which is characterized in that the guide post is conical structure.
4. small size electromagnetic lock according to claim 1, which is characterized in that the electromagnetic coil is wrapped in hollow shape circle
On cylinder, the pedestal and the lock core are respectively positioned in the cavity of the cylinder, and it is convex that the upper end of the cylinder is provided with a circular ring shape
Platform, the free end of the guide rod reach the outside of the cylinder via the boss, and the boss is for stopping the magnetic core
It is pierced by the cylinder.
5. small size electromagnetic lock according to claim 4, which is characterized in that further include a lid being socketed on the boss
Piece, the cover plate and the side wall are clamped.
6. small size electromagnetic lock according to claim 1, which is characterized in that further include one electrically connecting with the electromagnetic coil
The protective switch connect, when the electric current in the electromagnetic coil is excessive, the protective switch disconnects the electric current of the electromagnetic coil
Access.
7. small size electromagnetic lock according to claim 6, which is characterized in that the protective switch is temperature safety element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821735505.2U CN209457559U (en) | 2018-10-24 | 2018-10-24 | Small size electromagnetic lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821735505.2U CN209457559U (en) | 2018-10-24 | 2018-10-24 | Small size electromagnetic lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209457559U true CN209457559U (en) | 2019-10-01 |
Family
ID=68037522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821735505.2U Active CN209457559U (en) | 2018-10-24 | 2018-10-24 | Small size electromagnetic lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209457559U (en) |
-
2018
- 2018-10-24 CN CN201821735505.2U patent/CN209457559U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8274346B2 (en) | Electromagnetic contact device | |
| CN209457559U (en) | Small size electromagnetic lock | |
| TWI430316B (en) | Electromagnetic relay | |
| CN101364499A (en) | Temperature control magnet driving electrical switch | |
| CN105580094B (en) | Electromagnetic actuators and the method for manufacturing such actuator | |
| CN108962682B (en) | Anti-drop relay convenient for automatic assembly and automatic assembly method thereof | |
| CN210607117U (en) | Energy-saving electromagnetic switch | |
| CN204375664U (en) | Automobile front electromagnetic switch | |
| CN210489539U (en) | Shock-resistant TO-5 relay | |
| CN106328446A (en) | Magnetic latching relay, magnetic circuit structure and work method thereof | |
| CN211583005U (en) | Dish washing machine | |
| CN208879562U (en) | Cutting molding machine for braid material loader | |
| CN206194653U (en) | Electromagnetic relay | |
| CN106594377A (en) | Temperature sensing actuator for fire valve | |
| CN201315298Y (en) | Integrated magnetic yoke component of micro circuit breaker | |
| CN219068046U (en) | Push type self-generating module and wireless switch using same | |
| CN217485391U (en) | Release and earth leakage protection device | |
| CN101377988A (en) | Integrated magnet yoke element for small circuit breaker | |
| CN204375660U (en) | A kind of automobile front electromagnetic switch | |
| CN112021921A (en) | Magnetic double-metal temperature limiter for electric cooker | |
| CN209331759U (en) | Cooking utensil | |
| CN211789842U (en) | Novel leakage protection plug | |
| CN207441631U (en) | A kind of shunt release | |
| CN108994211A (en) | Cutting molding machine for braid material loader | |
| CN213071010U (en) | Normally closed relay convenient for current regulation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |