By saving the db folder will the backup Database

In SQL Server you can set a Backup Job which will create backups of your database according your settings like on every hour, every day etc.

A. Create a Schedule

1. SQL Server Agent > Right Click on Jobs > Manage Schedules
2. Click on New > Name: Backups > Schedule Type > Recurring > Select other features like Start Time, End Time, Daily or Hourly etc > OK

B. Create a Job

1. SQL Server Agent > Right Click on Jobs > New Job
2. Job Name: Backups
3. Select Steps > Click on New > Give Step Name i.e. Step1 > Select your database Name
4. In Command Area give this query >

BACKUP DATABASE MMISDB
    TO  DISK = N'C:\Test\MMISDB.bak'
WITH
    NOFORMAT,
    COMPRESSION,
    NOINIT,
    NAME = N'MMISDB-Full Database Backup',
    SKIP,
    STATS = 10;
GO

5. Select Schedules > Pick Schedule name which you have make for backup.
6. Now OK your Backup job is ready.
7. Test your job is working or not. > Right click on your Job > Start Job
8. Now you can see your backup in your specified location. After starting your job It will work automatically on specified time in schedule.

Remember: I have used C:\Test\ folder for backup you can specify another. MMISDB is my database name you can use your database name.