Fault diagnosis and solution strategy of magnetic lock

I. Introduction

With the development of intelligent buildings and smart homes, more and more places begin to use magnetic locks as one of the core devices of security access control system. However, in the actual use process, due to irregular installation or improper use, some faults often occur. This paper will analyze several common faults and propose corresponding solutions.

Second, the common faults and causes

1. No electricity state

If the power supply does not supply power to the magnetic lock, it will cause it to fail to work normally. This situation is usually caused by wrong wiring or blown fuse. Another situation is that the controller is abnormal, such as program error and internal short circuit, which will also cause no electricity.

2. Locking failed

When the unlock button is pressed, the lock body cannot be completely opened; Or it can't be sucked firmly when it is closed. The main reasons may be: foreign body blockage in the lock body, serious mechanical wear and the decrease of electromagnet magnetism and other factors.

3. Loud voice

It is also a common problem to make a loud noise during normal use. This may be caused by the following points: loose fixing screws, poor contact (including deformation of spring leaf) or high voltage, etc.

Step 4 eliminateExcessive power consumption

For some occasions, such as application scenarios that need to be locked for a long time to achieve maximum effectiveness, excessive power consumption will become a problem that cannot be ignored. So what are the reasons for this problem? First of all, we should consider whether there is leakage current; Secondly, whether the magnetic core material is good enough, otherwise the energy conversion efficiency will decrease due to heating, thus increasing energy consumption.

Third, the treatment method

In view of the above various problems, we can take the following measures to improve them:

1. For the first kind of power-off condition, first, check whether all connection points have virtual welding or falling off, and then replace the damaged parts and reconnect the circuit to restore normal power supply;

2. In case of the second type, that is, abnormal locking, the foreign body should be removed first, then the appropriate position should be adjusted to ensure a good fit, and finally the new part should be replaced or properly maintained according to the specific situation;

3. Regarding the third phenomenon of excessive sound, besides strengthening the fixation, it is necessary to check whether there is dirt residue between the spring elasticity and the contact surface, and clean it up in time to reduce the noise impact;

4. The last point is the control of power consumption. We can try to adopt a more efficient driving mode (for example, pulse driving instead of constant current driving), and optimize the design to make the structure more compact and reasonable, so as to achieve the purpose of energy saving and consumption reduction.

IV. Conclusion

Generally speaking, although the structure of magnetic lock itself is relatively simple, it involves many links, so daily maintenance is very important. Only in this way can the service life be effectively prolonged and its long-term stable operation be ensured. I hope that through the above introduction, we can help you to better deal with various problems that may arise!

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