CN213442459U - Self-purification defroster and automobile system - Google Patents
Self-purification defroster and automobile system Download PDFInfo
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- CN213442459U CN213442459U CN202022053895.9U CN202022053895U CN213442459U CN 213442459 U CN213442459 U CN 213442459U CN 202022053895 U CN202022053895 U CN 202022053895U CN 213442459 U CN213442459 U CN 213442459U
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Abstract
The utility model provides a self-cleaning defroster and car system, wherein under the normal use condition of self-cleaning defroster, switch on the defrosting switch unit realizes the defrosting and defogging function, at this moment, the normally closed contact of the first relay is switched on, the normally closed contact of the second relay is switched on, the normally closed contact of the third relay is grounded, the motor is just connected, and the fan normally blows out air to realize the defrosting and defogging function; when the defroster needs to be self-cleaned, the self-cleaning switch is switched on, the common contact of the first relay is switched on with the normally open contact at the moment, the defrosting switch unit fails, the common contact of the second relay is switched on with the normally open contact, and the common contact of the third relay is switched on with the normally open contact, so that the reverse connection of the motor and the reverse rotation of the fan are realized, the self-cleaning function is realized, and the cleaning efficiency is high.
Description
Technical Field
The utility model relates to a defroster technical field, concretely relates to self-cleaning formula defroster and car.
Background
The frosting of car windshield gives people and drives the trip to cause very big inconvenience and puzzlement winter, and there are three kinds at present main defrosting mode, are respectively: the vehicle-mounted warm air defrosting system is used for defrosting by using electric heating glass with resistance wires and defrosting by using an automobile antifogging agent and an antifogging film.
Most of automobile front window defrosters adopt a method that hot air of a warm air device is blown to glass to achieve the aim of defrosting. The air conditioner consists of an air blower, an air inlet and outlet warm air pipe, a defrosting nozzle and the like, wherein a filter screen is usually arranged at an air inlet and is used for filtering dust in air. After the defroster worked for a long time, the filter screen can accumulate a large amount of dust, leads to the air inlet difficulty, seriously influences the defrosting effect, reduces defroster life.
In prior art, the clearance of dust still restricts the manual cleaning on the defroster, not only is difficult to the clean up and the cleaning process is complicated, and cleaning efficiency is also not high.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the shortcoming among the prior art, provide a self-cleaning formula defroster and car system, have the self-cleaning function, do not need artifical clearance, the clearance is convenient, and the cleaning efficiency is high.
The purpose of the utility model is realized through the following technical scheme:
a self-cleaning defroster comprises a defroster body, a fan driven by a motor, a first relay, a second relay and a third relay, wherein a filter screen is arranged at an air inlet of the defroster body;
one pin of an electromagnetic coil of the first relay is connected with a positive electrode of a power supply through a self-cleaning switch, the other pin of the electromagnetic coil of the first relay is connected with the ground, a common contact of the first relay is connected with an external power supply, a normally closed contact of the first relay is connected with a normally closed contact of the second relay through a defrosting switch unit, a normally open contact of the first relay is respectively connected with one pin of the electromagnetic coil of the second relay, one pin of the electromagnetic coil of the third relay is connected with a normally open contact of the third relay, and the other pins of the electromagnetic coils of the second relay and the third relay are both connected with the ground; the normally open contact of the second relay is grounded, the common contact of the second relay is connected with the first end of the motor, the second end of the motor is connected with the common contact of the third relay, and the normally closed contact of the third relay is grounded.
The utility model has the advantages that under the normal use condition, the defrosting switch unit is switched on to realize the defrosting and demisting functions, at the moment, the normally closed contact of the first relay is switched on, the normally closed contact of the second relay is switched on, the normally closed contact of the third relay is grounded, the motor is positively connected, and the fan normally blows out air to realize the defrosting and demisting functions; when the defroster needs to be self-cleaned, the self-cleaning switch is switched on, the common contact of the first relay is switched on with the normally open contact at the moment, the defrosting switch unit fails, the common contact of the second relay is switched on with the normally open contact, and the common contact of the third relay is switched on with the normally open contact, so that the reverse connection of the motor and the reverse rotation of the fan are realized, the self-cleaning function is realized, and the cleaning efficiency is high.
Further, the defrosting switch unit comprises a high-speed gear switch, one end of the high-speed gear switch is connected with the normally closed contact of the first relay, and the other end of the high-speed gear switch is connected with the normally closed contact of the second relay.
The beneficial effect who adopts above-mentioned further scheme is that, through the high-speed switch that keeps off of switch-on, at this moment, the normally closed contact switch-on of first relay, second relay, the normally closed contact ground connection of third relay, the motor is just connecing, and the defrosting defogging function is realized to the normal air-out of fan.
Further, still include low-speed gear switch and first resistance, the one end of low-speed gear switch with the one end of high-speed gear switch is connected, the other end of low-speed gear switch with the one end of first resistance is connected, the other end of first resistance with the other end of high-speed gear switch is connected.
The beneficial effect who adopts above-mentioned further scheme is, through switching on low-speed switch, at this moment, the normally closed contact switch-on of first relay, second relay, the normally closed contact ground connection of third relay, the motor is just connecing, because first resistance partial pressure, the fan rotational speed reduces, realizes the low-speed defrosting function.
Further, the high-speed switch and/or the low-speed switch is a push button switch.
The beneficial effect who adopts above-mentioned further scheme is, set up to button switch, small, easy operation.
And one end of the second resistor is connected with the joint of the self-cleaning switch and the common contact of the first relay, and the other end of the second resistor is connected with the positive electrode of the power supply.
The beneficial effect of adopting the above further scheme is that the second resistor is arranged to play a role of voltage division, the voltage loaded on the first relay is controlled within a certain range, so that the coil of the first relay is not burnt out due to high temperature, and the first relay is effectively protected.
Furthermore, the model of the first relay, the second relay and the third relay is QYT 73-012-ZS.
The QYT73-012-ZS relay has the advantages of stable performance and high safety.
Further, the self-cleaning switch is a button switch.
The beneficial effect who adopts above-mentioned further scheme is, set up to button switch, small, easy operation.
An automotive system includes a self-cleaning defroster.
The utility model has the advantages that under the normal use condition, the defrosting switch unit is switched on to realize the defrosting and demisting functions, at the moment, the normally closed contact of the first relay is switched on, the normally closed contact of the second relay is switched on, the normally closed contact of the third relay is grounded, the motor is positively connected, and the fan normally blows out air to realize the defrosting and demisting functions; when the defroster needs to be self-cleaned, the self-cleaning switch is switched on, the common contact of the first relay is switched on with the normally open contact at the moment, the defrosting switch unit fails, the common contact of the second relay is switched on with the normally open contact, and the common contact of the third relay is switched on with the normally open contact, so that the reverse connection of the motor and the reverse rotation of the fan are realized, the self-cleaning function is realized, and the cleaning efficiency is high.
Drawings
Fig. 1 is a circuit connection diagram of the present invention.
Detailed Description
The technical solution of the present invention is described in further detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the following.
Example 1
Referring to fig. 1, the self-cleaning defroster comprises a defroster body, wherein an air inlet of the defroster body is provided with a filter screen, and the defroster body further comprises a fan driven by a motor, a first relay J1, a second relay J2 and a third relay J3; one pin of the electromagnetic coil of the first relay J1 is connected with the positive pole of a power supply through a self-cleaning switch, the other pin of the electromagnetic coil of the first relay J1 is connected with the ground, the common contact 30 of the first relay J1 is connected with an external power supply, the normally closed contact 87 of the first relay J1 is connected with the normally closed contact 87 of the second relay J2 through a defrosting switch unit, the normally open contact 87a of the first relay J1 is respectively connected with one pin of the electromagnetic coil of the second relay J2, one pin of the electromagnetic coil of the third relay J3 is connected with the normally open contact 87a of the third relay J3, and the other pins of the electromagnetic coils of the second relay J2 and the third relay J3 are both connected with the ground; the normally open contact 87a of the second relay J2 is grounded, the common contact 30 of the second relay J2 is connected with the first end of the motor, the second end of the motor is connected with the common contact 30 of the third relay J3, and the normally closed contact 87 of the third relay J3 is grounded.
Under the normal use condition, the defrosting switch unit is switched on to realize the defrosting and demisting functions, at the moment, the normally closed contact 87 of the first relay J1 is switched on, the normally closed contact 87 of the second relay J2 is switched on, the normally closed contact 87 of the third relay J3 is grounded, the motor is positively connected, and the fan normally blows air to realize the defrosting and demisting functions; when the defroster is required to be self-cleaned, the self-cleaning switch is switched on, at the moment, the common contact 30 of the first relay J1 is switched on with the normally open contact 87a, the defrosting switch unit fails, the common contact 30 of the second relay J2 is switched on with the normally open contact 87a, the common contact 30 of the third relay J3 is switched on with the normally open contact 87a, the reverse connection of the motor and the reverse rotation of the fan are realized, the self-cleaning function is realized, and the cleaning efficiency is high.
Referring to fig. 1, the defrost switch unit includes a high speed switch having one end connected to the normally closed contact 87 of the first relay J1 and the other end connected to the normally closed contact 87 of the second relay J2.
Through switching on the high-speed gear switch, at this moment, the normally closed contact 87 of first relay J1 switch-on, the normally closed contact 87 switch-on of second relay J2, the normally closed contact 87 ground connection of third relay J3, the motor is just connecing, and the defrosting defogging function is realized to the normal air-out of fan.
Referring to fig. 1, the vehicle further includes a low-speed switch and a first resistor, one end of the low-speed switch is connected to one end of the high-speed switch, the other end of the low-speed switch is connected to one end of the first resistor, and the other end of the first resistor is connected to the other end of the high-speed switch.
Through switching on the low-speed switch, at this moment, the normally closed contact 87 of first relay J1 switch on, the normally closed contact 87 of second relay J2 switches on, and the normally closed contact 87 of third relay J3 is ground connection, and the motor is just connecing, because first resistance partial pressure, the fan rotational speed reduces, realizes the low-speed defrosting function.
The high-speed gear switch and/or the low-speed gear switch are/is a button switch.
The button switch is arranged, so that the volume is small and the operation is simple.
The self-cleaning relay further comprises a second resistor, one end of the second resistor is connected with the joint of the self-cleaning switch and the common contact 30 of the first relay J1, and the other end of the second resistor is connected with the positive electrode of the power supply.
The second resistor is arranged to perform voltage division, the voltage loaded on the first relay J1 is controlled within a certain range, the coil of the first relay J1 is prevented from being burnt out due to high temperature, and the first relay J1 is effectively protected.
The first relay J1, the second relay J2 and the third relay J3 are QYT 73-012-ZS.
The self-cleaning switch is a button switch. In the embodiment, the first relay J1, the second relay J2 and the third relay J3 are 12vdc small-sized QYT73-012-ZS relays provided by eagle intelligent control electronics ltd, a product in east guan, and have stable performance and high safety.
Example 2
An automotive system includes a self-cleaning defroster.
Under the normal use condition, the defrosting switch unit is switched on to realize the defrosting and demisting functions, at the moment, the normally closed contact 87 of the first relay J1 is switched on, the normally closed contact 87 of the second relay J2 is switched on, the normally closed contact 87 of the third relay J3 is grounded, the motor is positively connected, and the fan normally blows air to realize the defrosting and demisting functions; when the defroster is required to be self-cleaned, the self-cleaning switch is switched on, at the moment, the common contact 30 of the first relay J1 is switched on with the normally open contact 87a, the defrosting switch unit fails, the common contact 30 of the second relay J2 is switched on with the normally open contact 87a, the common contact 30 of the third relay J3 is switched on with the normally open contact 87a, the reverse connection of the motor and the reverse rotation of the fan are realized, the self-cleaning function is realized, and the cleaning efficiency is high.
The above description is only for the preferred embodiment of the present invention, and should not be construed as limiting the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (8)
1. A self-cleaning defroster comprises a defroster body, wherein an air inlet of the defroster body is provided with a filter screen, and the self-cleaning defroster is characterized by further comprising a fan driven by a motor, a first relay, a second relay and a third relay;
one pin of an electromagnetic coil of the first relay is connected with a positive electrode of a power supply through a self-cleaning switch, the other pin of the electromagnetic coil of the first relay is connected with the ground, a common contact of the first relay is connected with an external power supply, a normally closed contact of the first relay is connected with a normally closed contact of the second relay through a defrosting switch unit, a normally open contact of the first relay is respectively connected with one pin of the electromagnetic coil of the second relay, one pin of the electromagnetic coil of the third relay is connected with a normally open contact of the third relay, and the other pins of the electromagnetic coils of the second relay and the third relay are both connected with the ground; the normally open contact of the second relay is grounded, the common contact of the second relay is connected with the first end of the motor, the second end of the motor is connected with the common contact of the third relay, and the normally closed contact of the third relay is grounded.
2. The self-cleaning defroster according to claim 1, wherein the defroster switch unit comprises a high speed switch, one end of which is connected to the normally closed contact of the first relay, and the other end of which is connected to the normally closed contact of the second relay.
3. The self-cleaning defroster according to claim 2 further comprising a low speed switch and a first resistor, one end of the low speed switch being connected to one end of the high speed switch, the other end of the low speed switch being connected to one end of the first resistor, and the other end of the first resistor being connected to the other end of the high speed switch.
4. The self-cleaning defroster according to claim 3, wherein the high speed switch and/or the low speed switch is a push button switch.
5. The self-cleaning defroster according to any one of claims 1 to 4 further comprising a second resistor, one end of the second resistor being connected to a junction of the self-cleaning switch and the common contact of the first relay, and the other end of the second resistor being connected to a positive power supply.
6. The self-cleaning defroster of any one of claims 1 to 4 wherein the first relay, the second relay and the third relay are of the type QYT 73-012-ZS.
7. The self-cleaning defroster according to any one of claims 1 to 4 wherein the self-cleaning switch is a push button switch.
8. An automotive system comprising a self-cleaning defroster according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022053895.9U CN213442459U (en) | 2020-09-18 | 2020-09-18 | Self-purification defroster and automobile system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022053895.9U CN213442459U (en) | 2020-09-18 | 2020-09-18 | Self-purification defroster and automobile system |
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| Publication Number | Publication Date |
|---|---|
| CN213442459U true CN213442459U (en) | 2021-06-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022053895.9U Active CN213442459U (en) | 2020-09-18 | 2020-09-18 | Self-purification defroster and automobile system |
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| Country | Link |
|---|---|
| CN (1) | CN213442459U (en) |
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- 2020-09-18 CN CN202022053895.9U patent/CN213442459U/en active Active
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