KR101950673B1 - Resettable resistor apparatus for vehicle - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a resettlement register device for a vehicle, and more particularly, to a resettlement register device for a vehicle, which comprises a resistance portion in which resistors for controlling at least two stages of motors for vehicle air conditioning are formed in a plate shape, a plurality of heat sinks for covering both sides of the resistance portion, And a base portion on which at least one or more connection terminals connected to the resistor portion are provided, the resettlement register device for a vehicle having one end connected to a fuse connecting terminal provided on the base portion, Fuse terminal connection plate to be connected; An electronic fuse having one end connected to the other end of the fuse terminal connection plate; And a fuse terminal and a resistance connection port to which the other terminal of the electronic fuse is connected, wherein the fuse terminal and the resistance connection port are formed such that a specific point of the plurality of heat sinks and the resistor is connected to a specified resistor .

Description

[0001] RESETTABLE RESISTOR APPARATUS FOR VEHICLE [0002] BACKGROUND OF THE INVENTION [

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a resettlement device for a vehicle, and more particularly to a resettlement device for a vehicle, The present invention relates to a resettlement register device for a vehicle, and more particularly,

Generally, HVAC (Heating, Ventilation, Air Conditioning, ie, heating, ventilation, air conditioner) is installed in the vehicle to provide a comfortable driving environment for passengers. For example, when the air conditioner is an air conditioner, when the blower sucks and pressurizes the air by the operation of the motor, the pressurized air is cooled while passing through the evaporator, and air having a temperature adjusted to the set blowing amount can be supplied to the interior of the vehicle.

At this time, the motor (or the fan motor) is selected and driven in two or more stages of high speed and low speed. In order to adjust the speed of the motor, A resistor is installed.

However, when the motor is restrained by the motor due to the surrounding situation (accident), environmental factors of the winter season, or the inflow of foreign matter, the spring fuse (not shown) operates to block the circuit (that is, the motor driving circuit). When the motor is restrained as described above, a current (overcurrent) exceeding a certain level flows to the motor, resulting in a safety accident such as fire and electric shock.

Here, the spring fuse is a kind of one-time mechanical switch that is fixed by using a solder (or solder) at the end of the spring fuse, is melted by the temperature rise, and the spring fuse is separated from the resistor, It is to prevent an accident (such as a fire accident) by interrupting the applied current.

However, in the case where permanent damage (e.g., complete failure or breakage) to the peripheral parts of the resistor occurs, it is preferable to cut off the current by operating the spring fuse. However, (Or a temporary malfunction that can be solved by a simple measure) occurs, the spring fuse (or the bullet fuse) is operated each time, resulting in a time-consuming and economical loss There is a problem.

That is, conventionally, when the spring fuse (or the bullet fuse) is operated, a resistor device (for example, a resistor controller having a resistor and a spring fuse integratedly) must be replaced. Damage to the spring fuse due to external force and damage to the metal case If the fuse does not work, it may lead to fire.

In addition, since the spring fuse (or bullet fuse) operates when the ambient temperature of the resistor is overheated (for example, heat generated by an overcurrent), if the overcurrent flows but does not generate heat, it does not operate, There is a problem.

Therefore, the current flowing through the resistor for the motor speed control can be cut off when the resistor is overheated, and the current flowing through the resistor can be cut off when the overcurrent flows even if the ambient temperature is not overheated. A resistor device is required to cut off the current and restart it.

BACKGROUND ART [0002] The background art of the present invention is disclosed in Korean Patent Laid-open Publication No. 10-2017-0037752 (published on Apr. 20, 2015, motor control register). However, as described above, the spring fuse disclosed in the background art operates only when the ambient temperature of the resistor is overheated, and when the overcurrent flows, the spring fuse does not operate if it does not generate heat. In addition, even if a temporary malfunction occurs due to the surrounding environment or the surrounding environment, the spring fuse operates every time, thereby causing a time and economic loss due to the replacement.

According to an aspect of the present invention, there is provided a vehicular air conditioner, which is created to solve the above-described problems, is provided with a motor for controlling a speed of a motor, And it is an object of the present invention to provide a resettlement register device for a vehicle that enables switching means for switching the power source to be re-enabled to improve safety and economy.

A resettlement register device for a vehicle according to one aspect of the present invention includes a resistance portion formed with a resistance for controlling at least two stages of motors for a vehicle air conditioning, a plurality of heat sinks covering each side of the resistance portion, And a base portion on which at least one connection terminal connected to the resistor portion is provided. The resettlement register device for a vehicle is characterized in that one end is connected to a fuse connection A fuse terminal connection plate connected to the terminal; An electronic fuse having one end connected to the other end of the fuse terminal connection plate; And a fuse terminal and a resistance connection port to which the other terminal of the electronic fuse is connected, wherein the fuse terminal and the resistance connection port are formed such that a specific point of the plurality of heat sinks and the resistor is connected to a specified resistor .

In the present invention, the fuse terminal connection plate is connected to the heat dissipation plate, which is parallel to the heat dissipation plate that covers one side of the resistance portion, and is bent in a shape of a 'g' shape toward the center of the heat dissipation plate.

According to the present invention, a terminal fixing part is formed at the other end of the fuse terminal connecting plate so that one terminal of the electronic fuse is always connected to a predetermined position at a predetermined angle. The electronic fuse, The terminal fixing portion is formed so that the other terminal is always connected to a predetermined position at a predetermined angle.

According to another aspect of the present invention, there is provided a resettlement register device for a vehicle, comprising: a resistance portion having resistors formed in a plate shape for controlling at least two stages of motors for vehicle air conditioning; a plurality of heat sinks each covering both sides of the resistance portion; And a base portion on which at least one connection terminal connected to the resistor portion is provided. The resettlement register device for a vehicle includes a fuse connecting terminal, A current detector for detecting whether the current applied to the resistor is blocked; A counter unit for counting the number of current interruptions each time the current is interrupted; A memory unit for accumulating the current interruption frequency and time information related thereto; And an interface unit for outputting information stored in the memory to the upper control unit and causing the upper control unit to diagnose an error of the resettable register device.

The present invention may further comprise: a temperature detection unit for detecting a temperature when the current is cut off; And an A / D converter for converting the detected temperature into a digital value and storing the digital value in the memory.

In the present invention, the memory stores at least one of a current interruption number, a current interruption time, a current interruption period, and temperature information at the time of current interruption.

In the present invention, the vehicle air-conditioning motor is a motor used in at least one of a blower of a vehicle HVAC (Heating, Ventilation, Air Conditioning) and a cooling fan module.

According to an aspect of the present invention, there is provided a vehicular air conditioner in which a switching means for switching a power source applied to the resistor whenever the vicinity of a resistor for controlling a speed of a motor is overheated or an overcurrent flows in the resistor is re- Thereby improving safety and economical efficiency.

1 is a front side perspective view schematically showing a resettable register device according to an embodiment of the present invention.
BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a resettable register device.
Fig. 3 is an exemplary view for explaining the structure of the resistance portion in Fig. 2; Fig.
FIG. 4 and FIG. 5 are views illustrating a schematic configuration for detecting an operation state of a resettable register device according to an embodiment of the present invention; FIG.
FIG. 6 is an exemplary diagram for explaining a method for determining a functional error of the resettable register device based on the detected operation state in FIG. 4 and FIG. 5; FIG.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of a resettlement register device for a vehicle according to the present invention will be described with reference to the accompanying drawings.

In this process, the thicknesses of the lines and the sizes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation. In addition, the terms described below are defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator. Therefore, definitions of these terms should be made based on the contents throughout this specification.

FIG. 1 is a front perspective view schematically showing a resetable register device according to an embodiment of the present invention, FIG. 2 is a perspective exploded perspective view schematically showing a resetable register device according to an embodiment of the present invention, FIG. 3 is a diagram illustrating the structure of the resistor portion in FIG. 2. FIG. 4 and FIG. 5 are views illustrating a schematic configuration for detecting the operation state of the resetting register device according to an embodiment of the present invention. FIG. 6 is an exemplary diagram for explaining a method of determining a functional error of the resettable register device based on the detected operation state in FIG. 4 and FIG. 5. Referring to FIG.

1 and 2, the resettable register device according to an embodiment of the present invention includes a resistance portion 10, a heat dissipation portion 20, a fuse coupling portion 30, a base portion 40, (50).

In this case, the mechanical shape itself of the resistor 10 and its periphery in the resettable register device may be partially similar to a shape of a conventional general register. However, for the sake of clarity, some similar shapes will be described in detail.

The resistance unit 10 includes a resistance member 11 connected in series to form a plurality of resistors. The resistive element 11 is covered with a front surface portion and a rear surface portion by a plate-like insulating member 18. The heat dissipation unit 20 is formed of a heat dissipation material that can dissipate the heat generated by the current flowing through the plate-shaped resistance unit 10 into the air, and is installed to cover the resistance unit 10.

As the heat dissipation material, a metal member having thermal conductivity can be applied.

The fuse coupling unit 30 is electrically and physically connected to the resistor unit 10 through the heat dissipation unit 20. When the heating temperature of the resistor unit 10 reaches a set temperature, 10 are electrically and physically released. The disconnection between the resistance part 10 and the fuse coupling part 30 according to the heating temperature is performed by the electronic fuse 50.

For example, the electronic fuse 50 includes a restoration fuse (PPTC).

The base portion 40 is a portion in which a plurality of connection terminals for electrically connecting the power supply portion of the vehicle, the resistance portion 10, and the fuse-

A plurality of resistors (physically, the plurality of resistors are connected in series) provided in the resistance unit 10 are selectively connected to the plurality of connection terminals, respectively.

The base unit 40 according to the embodiment of the present invention includes the terminal mount 41, the first connection terminal 42, the second connection terminal 43, the third connection terminal 44, and the fuse connection terminal 45).

The terminal mount 41 includes a plate portion having a plurality of connection terminals and a connector coupling portion capable of coupling the connector of the power supply portion.

The terminal mount 41 includes a heat insulating material such as a synthetic resin.

The first connection terminal 42, the second connection terminal 43, the third connection terminal 44, and the fuse connection terminal 45 are provided so as to pass through the plate portion.

One side of the first connection terminal 42, the second connection terminal 43, the third connection terminal 44 and the fuse connection terminal 45 located on the upper side of the plate portion is connected to the resistor portion 10 A plurality of resistors, and a fuse connector 30, and the other side portion located below the plate portion is connected to a connector of a power supply portion located inside the connector coupling portion and coupled to the connector coupling portion.

The resistance member 11 includes a high resistance portion 12, a middle resistance portion 16, and a low resistance portion 17.

The high resistance portion 12 is formed to extend by a first set length with a first set width. 1 to 3, one end of the high resistance part 12 is connected to the fuse terminal and the resistance connection hole 31 of the fuse coupling part 30, And is connected to the connection terminal 42.

The middle resistance portion 16 is formed to extend by a second set length with a second set width smaller than the first set width. One end of the middle resistance portion 16 is connected to the high resistance portion 12 to form a continuous plate and the other end is connected to the second connection terminal 43 provided to the base portion 40.

The row resistance portion 17 is formed to extend by a third set length with a third set width smaller than the second set width. One end of the row resistance portion 17 is connected to the high resistance portion 12 and the middle resistance portion 16 to form a continuous plate and the other end is connected to a third connection terminal 44 provided on the base portion 40 .

The high resistance part 12, the middle resistance part 16, and the low resistance part 17 are connected to each other like the above to form a rectangular flat plate, and the first connection terminal 42, which is a current- The second connection terminal 43 and the third connection terminal 44 are arranged in parallel on the same horizontal line corresponding to the lower end of the quadrangle.

The high resistance part 12 constitutes a left part and the upper part of the resistance member 11 and the middle resistance part 16 is disposed on the right side of the high resistance part 12, (12). The lower portion of the middle resistance portion 16 is located in the lower middle portion of the resistance member 11 and the upper portion thereof is located in the right middle portion of the resistance member 11. Further, the row resistance portion 17 is disposed on the right side of the middle resistance portion 16, and the upper portion thereof is disposed below the upper portion of the middle resistance portion 16. Accordingly, the row resistance portion 17 forms the lower right portion of the resistance member 11.

3, the high resistance part 12 includes a resistor extension part 13, a fuse temperature difference compensating part 14, and a terminal connection part 15 according to an embodiment of the present invention.

The resistance extension part 13 is formed to extend from the resistance extension part 13 by a first predetermined length by a first setting width and the resistance extension part 13 includes a boundary part 131, An extension portion 132, a proximal extension portion 133, and an intermediate extension portion 134.

The boundary part 131 is a part of the resistance extension part 13 which forms a boundary with the middle resistance part 16 and the boundary part 131 is located under the resistance part 10, Lt; / RTI > The middle resistance portion 16 extends upward from the boundary portion 131 and is connected to the high resistance portion 12 continuously.

The spacing extension portion 132 extends upward from the boundary portion 131 to be spaced apart from the first connection terminal 42 and forms a left side portion of the resistance member 11. The proximal extension part 133 is disposed between the spacing extension part 132 and the middle resistance part 16 and extends downward to a point where it does not interfere with the boundary part 131.

The proximal extension portion 133 is positioned closer to the low resistance portion 17 than the spacing extension portion 132 and the lower portion of the proximal extension portion 133 is located closer to the low resistance portion 17 than the spacing extension portion 132, And is located closer to the resistance portion 17.

The intermediate extension 134 connects the spacing extension 132 to the proximal extension 133. The intermediate extension portion 134 is connected to the lower portion of the upper extension portion and extends to the left from the right side portion of the upper extension portion and has a proximal extension portion 133 And a lower extension connected to an upper portion of the lower portion.

The fuse temperature difference compensating part 14 is a part to which the fuse terminal and the resistance connecting part 31 of the fuse coupling part 30 are coupled and has one end part relatively close to the low resistance part 17 of the resistance extension part 13. [ More specifically, at the lower portion of the proximal extension portion 133. [ The terminal connection portion 15 is connected to the first connection terminal 42 and is formed on the boundary portion 131.

The fuse coupling unit 30 includes a fuse terminal and a resistance connection port 31 and a fuse terminal connection plate 32. One end of the fuse terminal connection plate 32 is connected to a fuse connection terminal And the other terminal 52 of the electronic fuse 50 in which one terminal 51 is soldered to the fuse terminal connecting plate 32 and the fuse connecting terminal 45 is connected to the fuse terminal 45, And the resistance connection port 31 to the high resistance part 12.

When the current flowing into the high resistance part 12 flows to the first connection terminal 42 only through the high resistance part 12, the motor has three rotation speeds, and the high resistance part 12 and the middle resistance part 12, The middle resistance portion 16, and the low resistance portion 17, when the current flows to the second connection terminal 43 through the high resistance portion 12, the middle resistance portion 16, and the second connection terminal 43, To the third connection terminal 44, the motor has a rotation speed of one stage lower than the second stage.

Here, the motor is a motor for use in at least one of a blower of an HVAC (Heating, Ventilation, Air Conditioning) and a cooling fan module.

At this time, a resistance string is generated in proportion to the energization time applied to each of the high resistance part 12, the middle resistance part 16, and the low resistance part 17, and the current flows through the high resistance part 12 The fuse coupling unit 30 receives the resistance heat from the high resistance unit 12 and the received resistance heat is transmitted to the fuse terminal and the resistance connection port 31 and the fuse terminal connection plate 32 through the respective terminals (51, 52) are also conducted to the soldered electronic fuse (50).

Since the electronic fuse 50 is installed in parallel to the front of the second heat sink 25 as much as possible, heat transmitted to the external surface through the second heat sink 25 and heat generated from the electronic fuse 50 The heat generated inside the electronic fuse 50 by the current flowing through the electronic fuse 50 acts to operate the electronic fuse 50.

That is, when the electronic fuse 50 is operated, the current flowing into the high resistance part 12 is cut off, and when the temperature is again lower than a predetermined temperature, the electronic fuse 50 is connected again to the high resistance part 12 Current is supplied. Since the electronic fuse 50 operates by external heat and internal heat due to the overcurrent, the current flows into the high resistance part 12 even when no heat is generated in the resistance part 10 .

At this time, the position where the electronic fuse 50 is installed corresponds to the lower part of the high resistance part 12 and the upper part of the middle resistance part 16, Make sure you get as much of the surface as possible. The fuse coupling unit 30 fixes the position where the electronic fuse 50 is installed so that the resettable register device according to the present embodiment can maintain stable performance for each product.

1 and 2, the heat dissipating unit 20 according to an embodiment of the present invention includes a first heat sink 21, a second heat sink 25, and an anti-skid portion 27.

The first heat sink 21 is arranged to cover the rear portion of the resistor 10.

Referring to FIGS. 1 and 2, a first heat sink 21 according to an embodiment of the present invention includes a cover portion 22, a cover leg portion 23, and a heat transfer reduction portion 24.

The cover 22 covers the resistor 10 and has a panel shape so as to be in contact with the rear surface of the resistor 10.

The cover leg portion 23 is a portion for supporting the cover portion 22 and extends from the cover portion 22 toward the base portion 40 and has an end coupled to the base portion 40. The cover portion 22 and the base portion 40 are spaced apart from each other by the cover leg portion 23. [

Since the cover portion 22 and the base portion 40 are disposed apart from each other, damage such as melting of the base portion 40 due to resistance heat conducted to the cover portion 22 can be prevented.

The second heat sink 25 is disposed in front of the first heat sink 21 with the resistor 10 interposed therebetween. The second heat sink 25 has a panel shape that can cover the front surface of the resistor 10. The lifting prevention portion 27 binds the first heat radiating plate 21 and the second heat radiating plate 25 in tight contact with the resistance portion 10. The lifting prevention portion 27 includes a circumferential tightening portion 28 and an intermediate tightening portion 29.

The circumferential contact portion 28 is a portion that makes the edge portions of the cover portion 22 and the second heat dissipation plate 25 come into close contact with the both surface portions of the resistance portion 10. The circumferential contact portion 28 is formed to protrude forward from the edge portion of the first heat radiating plate 21, more specifically, to the left, right, and upper portions of the first heat radiating plate 21 And bending the end of the second heat sink 25 extending toward the front side to the side of the second heat sink 25 so as to surround the edge of the second heat sink 25 and pressing the end of the second heat sink 25 against the second heat sink 25.

The intermediate adhered portion 29 is a portion that makes the edge portions of the cover portion 22 and the second heat dissipating plate 25 adhere to the middle portion of the resistance portion 10. The intermediate adhered portion 29 protrudes from the middle portion of the first heat dissipating plate 21 toward the second heat dissipating plate 25 and is in close contact with the second heat dissipating plate 25 through the middle portion of the second heat dissipating plate 25 . The intermediate adhered portion 29 can protrude forward by bending a part of the intermediate portion of the first heat radiating plate 21 and bending the intermediate portion of the first heat radiating plate 21 forwardly so that the end portion passing through the second heat radiating plate 25 is directed toward the second heat sink 25 And then bending the second heat sink 25 and bringing it into close contact with the second heat sink 25.

The edge portions of the first heat radiating plate 21 and the second heat radiating plate 25 can be tightly adhered to the both side portions of the resistance portion 10 by the circumferential close- The middle portion of the first heat radiating plate 21 and the second heat radiating plate 25 can be tightly adhered to the both side portions of the resistance portion 10 by the intermediate contact portion 29.

The first heat radiating plate 21 and the second heat radiating plate 25 are firmly adhered firmly to the resistance portion 10 by using the circumferential tightening portion 28 and the intermediate tightening portion 29 as described above, The divergent heat is smoothly conducted to the first heat sink 21 and the second heat sink 25 without being stagnated on the internal space corresponding to the clearance between the first heat sink 21 and the second heat sink 25, And can be cooled and dissipated into the air.

1 and 2, a fuse coupling unit 30 according to an embodiment of the present invention includes a fuse terminal and a resistance connection port 31 and a fuse terminal connection plate 32.

The fuse terminal and the resistance connection port 31 are portions fixed to the resistor unit 10 among the fuse-connection units 30. The fuse terminal and the resistance connection hole 31 are coupled to the resistance member 11 of the resistance portion 10 through the connection hole portion 26 formed in the second heat sink 25. The connection hole portion 26 is formed to penetrate a point corresponding to the fuse temperature difference compensating portion 14 of the resistance member 11 and one end portion of the fuse terminal and the resistance connecting hole 31 penetrates through the connection hole portion 26 And is coupled to and connected to the fuse temperature difference supplement unit 14 of the resistance member 11. [ The heat dissipated from the resistance member 11 is conducted to the fuse terminal and the resistance connector 31 at a point corresponding to the fuse temperature difference compensating unit 14.

The fuse terminal connecting plate 32 is a plate having an elliptical shape bent toward the central portion of the second heat sink 25 among the fuse connecting portions 30, (45), and one terminal (51) of the electronic fuse (50) is soldered to the other end. At this time, a terminal fixing part (not shown) may be formed at the other end of the electronic fuse 50 so that the terminal 51 of the electronic fuse 50 to be soldered is always soldered to a predetermined position at a predetermined angle.

When the resistance member 11 is overheated to a predetermined temperature or when an overcurrent flows through the electronic fuse 50 supplying current to the resistor 10 as described above, the electronic fuse 50 operates to generate a current .

Referring to FIG. 2, the fuse terminal connecting plate 32 according to an embodiment of the present invention includes a fixing portion 321, a terminal fitting portion 322, and a natural recess portion 323.

The fixing portion 321 is a portion fixed to the fuse connecting terminal 45 and constitutes the lower portion of the fuse terminal connecting plate 32. The fuse terminal and the resistance connection port 31 are formed in a position where the other terminal 52 of the electronic fuse 50 is soldered to the terminal fuse 50. [ . Therefore, the fuse terminal and the upper end (that is, the exposed portion) of the resistance connector 31 are formed in a concave shape to be suitable for soldering, and the other terminal 52 of the electronic fuse 50 is always formed at a constant angle A terminal fixing portion (not shown) may be formed.

More specifically, the fuse terminal connecting plate 32 is soldered to one end of the fuse connecting terminal 45, and at the portion corresponding to the boundary between the fixing portion 321 and the short natural spots 323, (323) is bent toward the center of the second heat sink (25). However, the bent angle is not necessarily limited to the center of the second heat sink 25, and may be changed in consideration of the position where the electronic fuse 50 is installed.

In addition, according to the resettlement register device for a vehicle according to the present invention, the heat dissipated from the resistance portion 10 is dissipated through the heat dissipation portion 20 to further delay the overheat of the resistance portion 10 When the resistor 10 is overheated to a predetermined temperature, the electronic fuse 50 operates to cut off the current applied to the resistor 10, and if the resistor is not overheated, The electronic fuse 50 is turned on to cut off the current applied to the resistor 10, and when the current is lowered to a predetermined temperature over a certain period of time, (10).

As described above, in the present embodiment, when the temporary damage is caused, the current flowing through the resistor is cut off and can be re-operated, thereby preventing time and economic losses from occurring due to the exchange. Also, It is possible to improve the safety by blocking.

As described above, the resettlement register device for a vehicle according to the present embodiment can be used semi-permanently theoretically. However, there is a possibility of malfunction due to the influence of peripheral devices or surrounding environment, and the lifetime may be shortened due to the difference in durability. Therefore, in practice, there is a need for a method that can detect such an error in a reset register device for a vehicle.

In addition, when the autonomous running system is applied to a vehicle, it is necessary to periodically check whether the control unit (or ECU) of the autonomous running system operates normally, such as the internal reset device for the vehicle according to the present embodiment, A method for checking is required, and this method will be described in more detail with reference to Figs. 4 to 6. Fig.

Referring to FIG. 4, the vehicle resettlement register device according to the present embodiment may include a current detection unit 61, a counter unit 62, a memory unit 63, and an interface unit 64.

The current detection unit 61 detects whether the current applied to the resistance unit 10 is blocked through the fuse connection terminal 45.

As described above, when the electric fuse 50 is operated to interrupt the current, the electric current is applied again when the heat is decreased. However, the electronic fuse 50 operates more frequently than the specified number of times, It can mean that there is a problem somewhere in the device or its peripheral devices.

Therefore, the counter 62 counts the number of times the current is cut off each time the current is interrupted, and accumulates the counted time together with the time information (e.g., current interruption time, current interruption period, etc.) in the memory unit 63.

If the current interruption count is accumulated in the memory unit 63 as described above, the interface unit 64 may output the accumulated current interruption count and its time information (e.g., current interruption time, current interruption period, etc.) (For example, ECU) (not shown) in a predetermined period. At this time, the interface between the interface unit 64 and the upper controller (e.g., ECU) (not shown) is preferably a wired system, but is not intended to be limited thereto.

5, the electronic fuse 50 is operated at a predetermined overheating temperature, so that the resistance portion 10 (10) However, as described above, there is a possibility of malfunction due to the influence of peripheral devices or the surrounding environment, and there is a possibility that the lifetime is shortened due to the difference in durability, thereby operating at an unspecified temperature.

Therefore, the temperature detector 71 detects the temperature of the electronic fuse 50.

The temperature detector 71 detects the temperature when the current interruption is detected by the current detector 61 so that unnecessary temperature detection is not performed frequently.

The temperature detected as described above is converted into a digital value through the A / D conversion unit 72 and stored in the memory unit 63.

Accordingly, when the current applied to the resistor 10 is cut off, the memory 63 stores the current interruption count and its time information (e.g., current cutoff time, current cutoff period, etc.) (For example, a current cut-off temperature, a current application temperature, etc.) at the time of interruption.

If the current interruption count is accumulated in the memory unit 63 as described above, the interface unit 64 compares the accumulated current interruption count with its time information (e.g., current interruption time, current interruption period, etc.) (For example, ECU) (not shown) in real time (or at a predetermined period).

FIG. 6 is an exemplary diagram for explaining a method of determining a functional error of the resettable register device based on the detected operation state in FIG. 4 and FIG.

The resettable register device according to the present embodiment counts the number of current interruptions (S102) when the current applied to the resistance section 10 is interrupted (YES in S101) The temperature is detected (S103).

Further, the resetable register device stores the detected number of times of current interruption (the number of current interruptions including time information) and the temperature information detected at the time of current interruption in the internal memory 63 (S104) (The number of current interruptions including the time information) and the temperature information detected at the time of current interruption to the upper controller (e.g., ECU).

Accordingly, the upper control unit (e.g., ECU) analyzes the number of times of current interruption and the operation temperature for each period to determine the possibility of an error (malfunction or durability) (S105). If it is determined that there is an error according to the determination result, And outputs an alarm (e.g., a visual or audible alarm) in a designated manner (S106).

As described above, according to the present embodiment, the switching means for switching the power source applied to the resistors whenever the overcurrent of the resistor for adjusting the speed of the motor in the automotive air conditioner is overheated or the overcurrent flows to the resistors, It is also possible to verify the possibility of malfunction of the resettlement register device for a vehicle according to the present embodiment to improve stability.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, I will understand the point. Accordingly, the technical scope of the present invention should be defined by the following claims.

10: Resistance part 11: Resistance member
12: high resistance part 13: resistance extension part
14: Fuse temperature difference compensator 15: Terminal connection part
16: middle resistance portion 17: low resistance portion
18: Insulation member 20:
21: first heat sink 22: cover
23: cover leg portion 24: heat transfer reduction portion
25: second heat sink 26: connection hole
27: lifting preventing portion 28: peripheral tightening portion
29: intermediate contact portion 30: fuse-
31: fuse terminal and resistor connection port 32: fuse terminal connection plate
40: base portion 41: terminal mounting base
42: first connection terminal 43: second connection terminal
44: third connection terminal 45: fuse connection terminal
50: Electronic fuse 51, 52: Terminal
131: boundary portion 132:
133: proximal extension part 134: intermediate extension part
321: Fixing portion 322: Terminal coupling portion
323: Don Natural Books

Claims (7)

A plurality of heat sinks for covering both sides of the resistor portion, a cover portion for tightly connecting the resistor portion and the plurality of heat sinks in close contact with each other, And a base portion on which at least one connection terminal connected to the resistor portion is installed, the resettlement register device comprising:
A fuse terminal connecting plate having one end connected to a fuse connecting terminal provided on the base portion;
An electronic fuse having one end connected to the other end of the fuse terminal connection plate; And
Wherein the fuse terminal and the resistance connection port are formed such that a specific point of the plurality of heat sinks and the resistor is connected to a specified resistor of the resistor through a hole, And,
The fuse terminal connection plate includes:
A plurality of heat dissipation plates connected to the heat dissipation plate parallel to the heat dissipation plate covering one side of the resistance unit and bent in a '
A current detector for detecting whether a current applied to the resistance portion is cut off through an electronic fuse through a fuse connecting terminal;
A counter unit for counting the number of current interruptions each time the current is interrupted;
A memory unit for accumulating the current interruption frequency and time information related thereto;
An interface unit for outputting information stored in the memory to an upper control unit and causing the upper control unit to diagnose an error of the resettable register device;
A temperature detector for detecting a temperature when the current is cut off; And
And an A / D (Analog to Digital) converter for converting the detected temperature into a digital value and storing the digital value in the memory,
The memory comprising:
The current interruption time, the current interruption period, and the temperature information at the time of current interruption,
The high-
Wherein the controller is configured to determine an error possibility by analyzing a current interruption frequency and a current interruption frequency for each period, and to output an alarm in a predetermined manner when there is an error according to a result of the determination.
delete The method according to claim 1,
A terminal fixing part is formed at the other end of the fuse terminal connection plate so that one terminal of the electronic fuse is always connected to a predetermined position at a predetermined angle,
Wherein a terminal fixing portion is formed on an upper portion of the fuse terminal and the resistance connecting portion so that the other terminal of the electronic fuse is always connected to a predetermined position at a predetermined angle.
delete delete delete The vehicle air-conditioning apparatus according to claim 1,
Wherein the motor is a motor used in at least one of a blower of a vehicle HVAC (Heating, Ventilation, Air Conditioning) and a cooling fan module.

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