report blender

8/10/2019 Report Blender

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ACTIVITY 5

TOPIC: BLENDER/MIXER

OBJECTIVES:

1. To familiarize yourself with the operation and control panel of the blender/mixer

2. To state the functions of each control of the blender/mixer

3.

To measure the resistance readings of the blender/mixer heating elements

4. To open and expose each component in the blender/mixer

5. To familiarize yourself with each component of the blender/mixer

6.

To state the function of each component of the blender/mixer

7. To sketch and label the pictorial view of the blender/mixer

8.

To draw the schematic diagram of the blender/mixer circuit

TOOLS AND EQUIPMENT USED

1. Multimeter

2.

Megger ohmmeter

3. Test pen

4. Phillip and star screw driver set

5.

Long nose plier

6.

Diagonal cutter

Figure 1: Blender/Mixer


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PROCEDURE

1. The service manual provided was referred and the blender/mixer was operated.

2.

The specification label was located and read, and then the information was recorded

in Table 1.

Brand: SUNMAX

Model No: SM-503B

Voltage: 240V

Frequency: 50Hz

Power: 300W

3.

The front panel of the blender/mixer was observed and the observation was recorded

in the report especially the control knob of the blender/mixer.

4. An appropriate tool, the back cover of the blender/mixer unit was open up and the

electrical connection of the blendr/mixer was observed. The block diagram and the

possible circuit diagram of the blender/mixer were drawing in the spaces provided.

Figure 2: Block Diagram of the Electrical Connection of the blender/mixer

Table 1: Specification of blender/mixer

GRINDERSPOWER

SUPPLY

240V

SWITCH

OUTPUT/

READY TO USE


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5. Power supply plug of the blender/mixer was removed from the 240 Volt AC main

supply socket.

6. An appropriate tool was used, the back cover of the blender/mixer was open up and

the electrical connection of the blender/mixer electrical system was observed.

7.

The power plugs were not connected to the main supply socket. The work was doing

with the power OFF.

8. The multimeter or megger ohmmeter was used, the insulation resistance and short

circuit tests of the L (live), N (neutral), E (earth) connection of the supply cables were

doing. The reading was recorded in the Table 2.

Wires Insulation Test (OHM) Short Circuit Test (OHM)

L and N

L and E

N and E

9. An each component in the blender/mixer compartment was dismantled and the

labelled exploded view of the circuit showing the correct connection of the

Figure 3: Circuit Diagram of the Electrical Connection of the blender/mixer

Table 2: Insulation and Short Circuit Tests


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blender/mixer electrical circuit was draw. For the convenience, the service manual

was referred.

10.

The component was identified and the function of each component was written down

in Table 3.

Components Functions

Screw As connector the iron

Power supply cord To give the power supply 240v

motor Blender can function

Bottom Cover House motor and electronics

Circuit Board Motor power and speed control

Button Bracket Support speed control buttonsSpeed Control Buttons User interface to select blender speed

Top Cover House motor and electronics

Lid Cover top of jar

Jar Contain materials to be blended

Blade Assembly Blend materials through mechanical

action

Bottom Cap Hold blade assembly and gasket and

secure them to bottom of jarBlade Turner Transmits rotation of motor shaft to blade

shaft.

11. A multimeter was used, a continuity and resistance tests to the heating element was

doing and the reading was recorded in the Table 4.

Points Ohmmage Reading

Body to L terminal

L to N terminal

Body to N terminal

Table 3: The function of each component

Table 4: Continuity and Resistance Test


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12. The common problem of the Iron was stated. The possible causes also stated and the

idea was suggested to solve the problems.

Problem Possible Causes Solutions

Expose electronics and

sharp metal fan Bottom cover screws

loosening Screw the bottom back

Moving blender during

usage, possible falling if

near edge

Missing rubber 'feet' on

bottom cover Hold blender during

usage

Electrocution of user Missing insulation, frayedwiring on electrical cord

Swap out electricalcord if possible

Discomfort when

pressing metal where thebutton used to be

Speed control buttons

getting removed and lost

Cover metal where

button used to be withlots of tape

Unusable blender due tolack of container

Cracking/breaking the jar Replace with new jar

13.

Any defective component was replaced, and the component was reassembling back to

normal. After that, the instructor was checking the work

14.

The blender/mixer was tested and the safety aspects were not forgotten.

Table 5: Problem, causes and solutions


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LABELED EXPLODED VIEWS

LABELED PART:

1. Lid

2. Jar

3.

Handle

4. Blade

5. Jar base and jar housing

6. Multispeed switch

1

23

4

5

6


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COMPONENT VIEW PART

Blade Turner

Speed Control Buttons

Motor

Circuit Board


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QUESTIONS

1. What are the effects of the line frequency (50 Hz) to the operation of the

blender/mixer?

Iron operating at 50Hz because most electronic equipment in Malaysia is set to a

frequency of 50Hz. This line frequency is a most efficient for the 240 volt that supply

for domestic uses.

2. How does a megger ohmmeter help your to decide that the blender/mixer is safe

to use?

Megger ohmmeter is used to apply the insulation and short circuit tests on the

connection of the supply cable to trace that the iron in safe condition. After done the

testing the result must show that for a good condition reading is not less than 1M for

the every connection of phase(L and N),(L and E),(N and E).

3. What is the importance of the specification information of the blender/mixer?

The specification information of the blender/mixer is important because its telling us

how much the power is supplied.

4. How does a blender/mixer work?

A blender consists of housing, motor, blades, and food container. A fan-cooled

electric motor is secured into the housing by way of vibration dampers, and a small

output shaft penetrates the upper housing and meshes with the blade assembly.

Usually, a small rubber washer provides a seal around the output shaft to prevent

liquid from entering the motor. Most blenders today have multiple speeds. As a

typical blender has no gearbox, the multiple speeds are often implemented using a

universal motor with multiple stator windings and/or multitapped stator windings; in a

blender with electromechanical controls, the button (or other electrical switching

device or position) for each different speed connects a different stator winding/tap or

combination thereof. Each different combination of energized windings produces a

different torque from the motor, which yields a different equilibrium speed in balance

against the drag (resistance to rotation) of the blade assembly in contact with thematerial inside the food container.


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CONCLUSION

As a conclusion, after we had done doing the experiment, we know the operation of

the blender/mixer. We also know how to open all the part in the blender/mixer and we can

detect the part that is always problem and broken. The blender/mixer is

akitchen andlaboratory appliance used to mix,puree,or emulsify food and other substances.

The example of damage is blender expose electronics and sharp metal fan, the blender/mixer

moving during usage; possible falling if near edge and the blender/mixer electrocution of

user. Other than that, the damage is blender was discomfort when pressing metal where the

button used to beand unusable blender due to lack of container. If the damage is not serious,

we can repair.

Besides that, we also learn about how the parts work together in blender. A blender

consists of housing, motor, blades, and food container. A fan-cooled electric motor is secured

into the housing by way of vibration dampers, and a small output shaft penetrates the upper

housing and meshes with the blade assembly. Usually, a small rubber washer provides a seal

around the output shaft to prevent liquid from entering the motor. Most blenders today have

multiple speeds. As a typical blender has no gearbox, the multiple speeds are often

implemented using a universal motor with multiple stator windings and/or multitapped stator

windings; in a blender with electromechanical controls, the button (or other electrical

switching device or position) for each different speed connects a different stator winding/tap

or combination thereof. Each different combination of energized windings produces a

different torque from the motor, which yields a different equilibrium speed in balance against

the drag (resistance to rotation) of the blade assembly in contact with the material inside the

food container.

We also know the important reason we need to learn the ways to repair our electronic

component. That is because in our daily, we are used many things that is related to the

component electronic. Furthermore, we can practice the knowledge that we learned about this

blender/mixer to repair our broken blender/mixer at home especially if the damaged part is

just a little and easy to repair.
http://en.wikipedia.org/wiki/Kitchen_appliancehttp://en.wikipedia.org/wiki/Laboratoryhttp://en.wikipedia.org/wiki/Pureehttp://en.wikipedia.org/wiki/Pureehttp://en.wikipedia.org/wiki/Laboratoryhttp://en.wikipedia.org/wiki/Kitchen_appliance


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REFERENCES

1.

http://best-price-blender-for-sale.ottawadjfest.com/tag/black-decker-blender-parts

2. http://home.howstuffworks.com/blender.htm

3.

http://wiki.ece.cmu.edu/ddl/index.php/Blender_2

ATTACHMENTS
http://best-price-blender-for-sale.ottawadjfest.com/tag/black-decker-blender-partshttp://best-price-blender-for-sale.ottawadjfest.com/tag/black-decker-blender-partshttp://home.howstuffworks.com/blender.htmhttp://home.howstuffworks.com/blender.htmhttp://wiki.ece.cmu.edu/ddl/index.php/Blender_2http://wiki.ece.cmu.edu/ddl/index.php/Blender_2http://wiki.ece.cmu.edu/ddl/index.php/Blender_2http://home.howstuffworks.com/blender.htmhttp://best-price-blender-for-sale.ottawadjfest.com/tag/black-decker-blender-parts


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