CN103670035B - Power-saving device for electromagnetic door lock - Google Patents

Abstract

The invention relates to an electromagnetic door lock interruption detection type energy-saving device, which includes: an electromagnet assembly and a corresponding adsorption assembly. The electromagnet assembly is connected to an interruption detection module, and the adsorption assembly is provided with an The pressing unit can be pressed against the interruption detection module, so that when the door is closed, the electromagnet component magnetically attracts the adsorption component, causing the pressing unit to suppress the interruption detection module. When the door panel is stationary, the electromagnetic door lock is Low power consumption adsorption state; when the door panel is affected by external forces, the electromagnetic door lock quickly returns to the normal current power supply latching state (LOCK) through the detection and triggering of the interruption detection module, so as to achieve both energy saving and external force. Detection control effectiveness.

Description

Electromagnetic door lock interruption detection energy saving device

technical field

The invention relates to an electromagnetic door lock, in particular to a blocking detection type energy-saving and power-saving device.

Background technique

In the system of access control monitoring, the use of electromagnetic door locks has been very common; Above, the adsorption iron plate 12 is installed with the relative position of the door panel 14. When the electromagnet 11 is energized to generate electromagnetic suction, the adsorption iron plate 12 is sucked, and the electromagnetic door lock 10 forms a locked state (LOCK). When the electromagnet 11 is powered off When the electromagnetic attraction force disappears, the adsorption iron plate 12 can break away from the electromagnet 11 at will, and then the electromagnetic door lock 10 forms an unlocked state (UNLOCK). This type of patent is found in US Patent No. 4,652,028 and other patents.

However, the power consumed by a general DC-powered electromagnetic door lock 10 is about a few watts (W) to tens of watts. If it is powered by a 12-volt (V) DC power supply, it will maintain a consumption of hundreds of milliamperes (mA). current. Therefore, limitations based on the design of the electromagnetic door lock 10 will consume a lot of electrical energy.

If the current security monitoring system with electromagnetic door locks must consider practicability, applicability and controllability at the same time, then its design in terms of energy saving and power saving needs to be further improved.

Contents of the invention

The main technical problem to be solved by the present invention is to overcome the above-mentioned defects existing in the prior art, and provide an electromagnetic door lock interruption detection type energy-saving and power-saving device, which allows the electromagnetic door lock to be in a low-energy absorption state when it is in a normal state. When a user approaches the access control and triggers the blocking detection module, the electromagnetic door lock responds quickly and restores the normal power supply, so as to save power at ordinary times, and when the induction is triggered, it can return to the normal locking state (LOCK) and It has the safety function of access control monitoring; it has a buffer displacement design, so that the electromagnet has enough time to resume operation and ensure the safety of access control.

The technical solution adopted by the present invention to solve its technical problems is:

An electromagnetic door lock interruption detection type energy-saving and power-saving device, comprising:

An electromagnet assembly, which is equipped with an electromagnet with electromagnetic attraction force, and the corresponding surface of the electromagnet assembly is provided with an adsorption assembly; it is characterized in that:

The electromagnet assembly is electrically connected to a blocking detection module, and the blocking detection module includes: a base; a detection circuit arranged on the base and connected to a control circuit; a blocking sensing The device is arranged on the detection circuit, which has a first sensing part and a second sensing part opposite to the first sensing part, and a line is formed in the middle of the first and second sensing parts Axial slit; an elastic member, which is arranged above the detection circuit; a top body, whose bottom peripheral surface is in contact with the elastic member;

The adsorption assembly includes: an adsorption iron plate locked on a door panel by a bolt assembly, a spring sleeved on the bolt assembly, so that the inner surface of the adsorption iron plate abuts against the door panel and has an elastic displacement space; and

A pressing unit is arranged on the periphery of the adsorption component, the front of which is opposite to the top body of the blocking detection module, and can be pressed to make it move axially;

In this way, when the door is closed, the electromagnet assembly absorbs the adsorption assembly with magnetic force, so that the pressing unit suppresses the blocking detection module. When the door panel is stationary, the electromagnetic door lock is in a state of low power consumption adsorption; when the door panel is subjected to external action, Through the detection and triggering of the interruption detection module, the electromagnetic door lock quickly recovers to the locked state (LOCK) of normal current power supply.

According to the features disclosed above, in one embodiment of the present invention, the first sensing part of the blocking sensor is a permanent magnet, and the second sensing part is a magnetic reed switch, which are magnetic inductions formed corresponding to each other. test switch.

In another embodiment of the present invention, the first sensing part of the blocking sensor is a permanent magnet, and the second sensing part is a Hall IC, which are magnetic sensing switches corresponding to each other.

In yet another embodiment of the present invention, the first sensing part of the blocking sensor can be a light emitting end, and the second sensing part is a light receiving end, which are photosensors corresponding to each other.

With the help of the technical means of uncovering, the effect achieved by the present invention is that, for the electromagnetic door locks that originally need continuous power supply around the clock, the effect of energy saving and power saving can be achieved by means of blocking detection. And it can avoid the long-term use of the electromagnetic door lock, thereby improving the effect of its service life.

The beneficial effect of the present invention is that it allows the electromagnetic door lock to be in a low-energy absorption state in normal state, and when a user approaches the access control and triggers the blocking detection module, the electromagnetic door lock responds quickly and restores the normal power supply, so as to achieve normal operation. Energy-saving performance, and when the induction is triggered, it can return to the normal locked state (LOCK) and has the security function of access control monitoring; it has a buffer displacement design, so that the electromagnet has enough time to resume operation, ensuring the security of access control safety.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Fig. 1 is a schematic diagram of an existing electromagnetic door lock.

Figure 2 is an exploded perspective view of the present invention.

Fig. 3 is a perspective view of the suction engagement of the present invention.

Fig. 4 is an exploded perspective view of the electromagnet assembly of the present invention.

Fig. 5 is an assembled perspective view of the electromagnet assembly of the present invention.

Fig. 6 is an exploded perspective view of the adsorption assembly and the pressing unit of the present invention.

Fig. 7 is a combined perspective view of the adsorption assembly and the pressing unit of the present invention.

Fig. 8 is a separate cross-sectional view of the electromagnet assembly and the adsorption assembly of the present invention.

FIG. 8A is an enlarged view indicated by 8A in FIG. 8 .

Fig. 9 is a cross-sectional view of the engagement of the electromagnet assembly and the adsorption assembly of the present invention.

FIG. 9A is an enlarged view indicated by 9A in FIG. 9 .

Fig. 10 is a schematic diagram of the separation of the electromagnet assembly and the adsorption assembly of the present invention.

FIG. 10A is an enlarged view indicated by 10A in FIG. 10 .

Fig. 11 is a control block diagram of the present invention.

Explanation of symbols in the figure:

20 electromagnet assembly

21 shell

22 electromagnet

23 accommodation space

24 cover

25 mounting holes

30 adsorption components

31 mounts

32 adsorption iron plate

321 fish eye hole

33 bolt assembly

34 springs

40 blockage detection module

41 base

411 perforation

412 screw holes

413 screw

42 elastic pieces

43 detection circuit

431 circuit board

432 wire

44 top system

441 protrusion

442 positioning flange

45 seat body

451 positioning surface

46 axial through hole

47 blocking sensor

471 The first sensing part

472 The second sensing part

473 axial slot

48 mattes

49 control circuit

50 pressing units

51 matrix

511 elastic positioning components

52 concave surface

53 screw holes

54 against the button

55 screw

60 electromagnetic door lock

70 external power supply

Detailed ways

First, please refer to FIGS. 2 to 11, the electromagnetic door lock 60 disclosed in the present invention includes: an electromagnet assembly 20 and an adsorption assembly 30. In this embodiment, as shown in FIGS. 8 and 9, the electromagnet The component 20 is installed on the door frame 13, and the adsorption component 30 is correspondingly installed on the door panel 14, but it is not limited thereto, and the electromagnet component 20 can also be installed on the door panel 14, and the adsorption component 30 is correspondingly installed on the door frame 13 , can be implemented. However, the electromagnet assembly and the adsorption assembly belong to the prior art (PriorArt), and their internal detailed structure and connection mode with the external power supply are not the patent object of the present invention, and will not be described in detail.

The main feature of the present invention is that: the electromagnet assembly 20 is electrically connected to a blocking detection module 40, and a pressing unit 50 is provided on the side of the adsorption assembly 30; its detailed structure includes:

The electromagnet assembly 20 has a housing 21 and an electromagnet 22 disposed in the housing 21. The electromagnet 22 referred to below in the present invention includes an iron core and a coil wound around it, so that it has electromagnetic attraction, and the electromagnet 22 The casing 21 can be a resin covering the electromagnet 22, or a shell, etc., but this is a prior art, and will not be repeated here. And in a preferred embodiment, the housing 21 is provided with an accommodating space 23 (as shown in FIG. 4 ) on the side of the electromagnet 22 , and a cover plate 24 is provided at the opening of the accommodating space 23 . Furthermore, the cover plate 24 is provided with a mounting hole 25, and the accommodating space 23 can be an independently formed structure located on the periphery of the electromagnet assembly 20, or directly connected to the housing 21 of the electromagnet assembly 20. One-piece molding can be implemented. Therefore, the blocking detection module 40 is electrically connected to the outer periphery of the casing 21; , which can be accommodated by an adsorption iron plate 32; or, the installation seat 31 can be directly formed on the door panel, which can also be implemented. The detailed structure of the adsorption unit 30 will be described later.

As shown in FIG. 4 , in a preferred embodiment, the blocking detection module 40 is disposed on the installation hole 25 , but it is not limited thereto, and it can be disposed at a predetermined position on the periphery of the electromagnet assembly 20 . In this embodiment, the blocking detection module 40 includes: a base 41, which is installed upwards from the bottom of the installation hole 25 and fixed by several screws 413. The base 41 has a through hole 411 and several The screw hole 412 , in another feasible embodiment, the base 41 can also be integrally formed with the cover plate 24 . A detection circuit 43 is arranged on the base 41, and it can be set as a circuit board 431 shape, and the side is connected with an electric wire 432, and is connected with a control circuit 49; a blocking sensor 47 is located on the detection circuit 43 On the detection circuit 43, it has a first sensing portion 471, and a second sensing portion 472 opposite to the first sensing portion 471, and the first and second sensing portions 471, 472 are formed in the middle An axial slit 473 enables the second sensing portion 472 to sense the signal from the opposite first sensing portion 471 when there is no blocking object.

In this embodiment, the blocking sensor 47 includes: the first sensing part 471 is a permanent magnet, and the second sensing part 472 is a reed switch, which are magnetic sensing switches corresponding to each other. . But not limited thereto, that is, the blocking sensor 47 may include: the first sensing part 471 is a permanent magnet, and the second sensing part 472 is a Hall IC, which are magnetic sensors corresponding to each other. test switch. In addition, the first sensing part 471 can be a light emitting end, and the second sensing part 472 is a light receiving end, which are light sensors corresponding to each other.

And in a preferred embodiment, the blocking detection module 40 further includes: an elastic member 42 above the blocking sensor 47, the elastic member 42 in this embodiment is a spring; a top body 44, It has a protruding portion 441 and a peripheral positioning flange 442, the bottom peripheral surface of which is in contact with the elastic member 42. In this embodiment, the bottom edge of the top body 44 is opposite to the axial slit 473. The shroud 48, its function is that when the top system 44 moves down, the shroud 48 also moves down synchronously and extends into the axial slit 473, so that the first and second sensing parts 471, 472 The induction signal between them is cut off, so that the detection circuit 43 forms a trigger. The seat body 45 is arranged above the installation hole 25 and has an axial through hole 46, which can be accommodated by the top system body 44 and can be axially telescopically displaced, and the top system body 44 is provided by the elastic member 42 With an upward elastic force, in this embodiment, the bottom of the base body 45 is nested in the installation hole 25 .

In this embodiment, the surface of the seat body 45 of the blocking detection module 40 is provided with a positioning surface 451 around the axial through hole 46, so that the protruding portion 441 of the top body 44 is subjected to the upward elastic force of the elastic member 42 , it can be used as the abutment positioning of the positioning flange 442 , as shown in FIG. 8A .

The adsorption assembly 30 is arranged on the front of the electromagnet assembly 20. In this embodiment, as shown in FIGS. The adsorption iron plate 32 of the iron 22, the adsorption iron plate 32 has a fish eye hole 321, is locked on the installation seat 31 by a bolt assembly 33 through the fish eye hole 321 from the inner surface, and a spring 34 is sleeved. On the bolt assembly 33 , the inner surface of the absorbing iron plate 32 abuts against the installation base 31 and has an elastic displacement space. However, in another feasible embodiment, the adsorption iron plate 32 can also be directly locked on the door panel 14 instead of using the installation seat 31 , which can also be implemented.

The pressing unit 50 is arranged on the periphery of the adsorption component 30. In this embodiment, the pressing unit 50 is fixed on the side of the adsorption component 30, which includes: a base 51 with a concave surface 52, and A screw hole 53 is provided in the surface 52; an abutting button 54, its front face is opposite to the top body 44 of the blocking detection module 40, and can contact the top pressure, and the bottom surface of the abutting button 54 is provided with a screw 55 to lock Insert the screw hole 53, so that the abutting button 54 can adjust its height on the surface of the base body 51, so as to adjust its contact and pressing degree with the top body 44, as shown in FIG. 9A. In addition, as shown in FIG. 7 , the side of the abutting button 54 can have an elastic positioning component 511 on the base 51 , such as a shrapnel or an elastic steel ball.

As shown in Fig. 8, Fig. 9 and Fig. 11, the control circuit 49 is arranged in the accommodating space 23, one end of which is connected to the external power supply 70, and the other end is electrically connected to the electromagnet 22, by means of the blocking detection The detection circuit 43 and the control circuit 49 of the module 40 are used to control the state of the power supply to the electromagnet 22 .

In this way, the lifting members are respectively installed on the door frame 13 and the door panel 14. When the door panel 14 is in an open state, the abutting button 54 of the pressing unit 50 does not touch the top body 44 on the door frame 13 at this time. The control circuit 49 is in a state of not supplying power to the electromagnet 22 . Also, when the door panel 14 and the door frame 13 are in a closed state, the abutment button 54 of the pressing unit 50 will press the top body 44 of the blocking detection module 40 so that it shrinks inwardly, and when the top body 44 is inside When shrinking, it will synchronously drive the mask 48 to move downwards and extend into the axial slit 473, so that the detection circuit 43 is triggered, and then the control circuit 49 controls the electromagnet 22 to first absorb the adsorption iron plate 32 with normal magnetic force. Reach the locked state, and then enter the low power consumption adsorption state after the door panel 14 is stationary.

Furthermore, the present invention uses the adsorption component 30 to assist the blocking detection module 40, wherein the installation seat 31 is locked on the door panel 14, and the adsorption iron plate 32 is in close contact with the corresponding electromagnet 22, As shown in Figure 9, the electromagnet only maintains the basic suction force with low electric energy at ordinary times. The seat 31 is displaced by a small distance D along with the door panel 14, and the spring 34 in the fish eye hole 321 provides this displacement buffering function, so that the adsorption component 30 can have enough time for the moment when the door panel 14 is touched. The control circuit 49 sends normal current to the electromagnet 22 .

In addition, in order to allow the control circuit 49 to have enough time to send the normal current to the electromagnet 22, the bolt and spring assembly can also be refitted on the electromagnet assembly so that the inner surface of the electromagnet assembly is attached to the door frame and has an elastic Displacement space can also achieve the same effect.

Therefore, the present invention sets the top body 44 and the blocking sensor 47 into an axial sensing relationship, so that when the door panel 14 is pushed, the top body 44 can be used to move up to make the mask 48 on the bottom surface , away from the axial slit 473, so that the detection circuit 43 reacts quickly, so that the normal current power supply can be resumed when the door panel 14 has not been pushed open, and the expected safety effect can be achieved. For example, if the electromagnetic attraction force required to make the electromagnetic door lock 60 enter the lock (LOCK) is 1200 pounds, then a current of 500mA needs to be supplied at this time, but some doors do not have much time for people to enter and exit. If the normal power supply is maintained for 24 hours If so, its power consumption is considerable, for this reason, the present invention can provide small electric current (for example: 100mA) to electromagnet 22 when the door panel is statically adsorbed and closed, and now electromagnetic door lock 60 can produce a small suction force approximately, with Low power consumption sucks the adsorption iron plate 32. And when someone pushes the door hard or destroys it, the detection circuit 43 can respond quickly, restore the normal power supply, enter the locked state (LOCK) of normal current supply, reach the purpose of access control security, and can save power at ordinary times.

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention in any form. Any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention still belong to within the scope of the technical solutions of the present invention.

In summary, the present invention fully meets the needs of industrial development in terms of structural design, practicability and cost-effectiveness, and the disclosed structure also has an unprecedented innovative structure, novelty, creativity and practicability, and meets the requirements of relevant According to the requirements of the invention patent requirements, the application is filed according to law.

Claims (12)

1. an electromagnetic door lock blocking detection type energy saving device, comprising:

One electromagnet assembly, it possesses the electromagnet that has electromagnetic attraction, and the corresponding surface of this electromagnet assembly is provided with an absorbent module; It is characterized in that:

This electromagnet assembly is electrically connected a blocking detecting module, and this blocking detecting module comprises: a pedestal; One circuit for detecting, arrange on the base, it is connected with a control circuit, one interrupter-type sensor, is located on this circuit for detecting, and it has one first detecting part, and the second detecting part that is located at this first detecting part opposite, and form one axial slot in the middle of this first and second detecting part; One elastic component, is located at above this circuit for detecting; One top making body, its end circumferential contact is on this elastic component;

This absorbent module, it comprises: an absorption iron plate, is locked on a door-plate with a bolt assembly, a spring, is set on this bolt assembly, this absorption iron plate medial surface is reclined this door-plate, and has an elastic displacement space;

One press unit, is located at this absorbent module peripheral, and its vis-a-vis in the top making body of this blocking detecting module, and can push up pressure and makes it move axially;

Whereby, when at closing time, electromagnet assembly is with this absorbent module of magnetic-adsorption, and make this press unit suppress this blocking detecting module, when door-plate is static, electromagnetic door lock is low power consumption adsorbed state; When door-plate is subject to external action, by the blocking that this blocking detecting detecting of module and triggering make electromagnetic door lock recover rapidly normal current to power.

2. electromagnetic door lock blocking detection type energy saving device according to claim 1, it is characterized in that, the first detecting part of described interrupter-type sensor is a permanent magnet, and this second detecting part is a magnetic reed tube, in the mutual corresponding magnetic strength slowdown monitoring switch formed.

3. electromagnetic door lock blocking detection type energy saving device according to claim 1, it is characterized in that, the first detecting part of described interrupter-type sensor is a permanent magnet, and this second detecting part is a Hall IC, in the mutual corresponding magnetic sense switch formed.

4. electromagnetic door lock blocking detection type energy saving device according to claim 1, it is characterized in that, the first detecting part of described interrupter-type sensor can be a smooth transmitting terminal, and this second detecting part is an optical receiving end, in the mutual corresponding OPTICAL SENSORS formed.

5. electromagnetic door lock blocking detection type energy saving device according to claim 1, it is characterized in that, described blocking detecting module also comprises: a pedestal, fix on the base, it has an axially extending bore, can be accommodating and can axial stretching displacement for this top making body, this top making body has the locating flange of a convex extension part and periphery.

6. electromagnetic door lock blocking detection type energy saving device according to claim 5, it is characterized in that, described electromagnet assembly is located on doorframe, and this absorbent module is corresponding is located on door-plate, and the outer of this electromagnet assembly is arranged with an accommodation space, and being provided with a cover plate in the opening part of this accommodation space, this cover plate is provided with an installation hole, and this blocking detecting module is installed on this installation hole.

7. electromagnetic door lock according to claim 6 blocking detection type energy saving device, it is characterized in that, it is the periphery that an independent molding structure is located at this electromagnet assembly again that described accommodation space comprises, or directly and this electromagnet assembly one-body molded.

8. electromagnetic door lock blocking detection type energy saving device according to claim 7, it is characterized in that, described blocking detecting module pedestal outside this axially extending bore, be arranged with certain plane, when making the convex extension part of this top making body be subject to the upwards elastic force of this elastic component, as this locating flange against.

9. electromagnetic door lock blocking detection type energy saving device according to claim 8, it is characterized in that, described control circuit is located in the accommodation space of this electromagnet assembly, its one end connects for an external power source, the other end and this electromagnet are electrically connected, and control to supply power to this electromagnet by this blocking detecting module and this control circuit.

10. electromagnetic door lock blocking detection type energy saving device according to claim 1, it is characterized in that, described absorbent module has a fish eyelet, is locked on this door-plate by medial surface with this bolt assembly through this fish eyelet; The absorption iron plate of this absorbent module comprises and being locked on an installing seat, or is directly locked on this door-plate.

11. electromagnetic door lock blocking detection type energy saving devices according to claim 1, it is characterized in that, the elastic component of described blocking detecting module can be made up of a spring.

12. electromagnetic door lock blocking detection type energy saving devices according to claim 1, it is characterized in that, described press unit comprises:

One matrix, has a concave face, and is provided with a screw in this concave face;

One against button, and its vis-a-vis is in the top making body of this blocking detecting module, and its bottom surface is provided with a screw and locks this screw, makes this against its height at this matrix surface of button adjustable.