KR20170037752A - Resistor for controlling motor - Google Patents

Resistor for controlling motor Download PDF

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Publication number
KR20170037752A
KR20170037752A KR1020150136615A KR20150136615A KR20170037752A KR 20170037752 A KR20170037752 A KR 20170037752A KR 1020150136615 A KR1020150136615 A KR 1020150136615A KR 20150136615 A KR20150136615 A KR 20150136615A KR 20170037752 A KR20170037752 A KR 20170037752A
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KR
South Korea
Prior art keywords
resistance
cover
fuse
heat
resistor
Prior art date
Application number
KR1020150136615A
Other languages
Korean (ko)
Inventor
이우용
Original Assignee
동아하이테크 주식회사
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Publication date
Application filed by 동아하이테크 주식회사 filed Critical 동아하이테크 주식회사
Priority to KR1020150136615A priority Critical patent/KR20170037752A/en
Publication of KR20170037752A publication Critical patent/KR20170037752A/en

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
    • H02H5/04—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal temperature
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/32—Cooling devices
    • B60H1/3204—Cooling devices using compression
    • B60H1/3226—Self-contained devices, i.e. including own drive motor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C1/00—Details
    • H01C1/01—Mounting; Supporting
    • H01C1/014—Mounting; Supporting the resistor being suspended between and being supported by two supporting sections
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/02—Details

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)

Abstract

An invention for a motor control register is disclosed. A motor control resistor according to the present invention includes: a resistor portion; a heat dissipation portion that covers the resistor portion and dissipates heat radiated from the resistor portion; and a resistor connected to the resistor portion, A fuse portion to be disconnected, and a base portion to which a connection terminal to be connected to the resistor portion and the fuse portion is provided.

Description

[0001] RESISTOR FOR CONTROLLING MOTOR [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a motor control register, and more particularly, to a motor control register for controlling a current supplied to a motor.

Generally, the vehicle is provided with a cooling device that circulates refrigerant to cool the room. The cooling device discharges the cool air to the room of the vehicle by the fan device. The fan unit includes a case in which the air supply mechanism and the air outlet are formed, a fan disposed inside the case, and a fan motor for rotating the fan. In order to control the current supplied to the fan motor, the rotation speed of the fan motor, that is, the blowing amount can be adjusted. In order to control the current supplied to the fan motor, a motor control register is installed between the power supply part of the vehicle and the fan motor do.

BACKGROUND ART [0002] The background art of the present invention is disclosed in Korean Patent Laid-Open Publication No. 2011-0135683 (published on December 19, 2011, entitled "Register for Motor Controller and Method of Manufacturing the Same").

An object of the present invention is to provide a motor control register capable of further improving safety against overheating of a resistance member.

A motor control register according to the present invention comprises: a resistance portion; A heat dissipation unit covering the resistor unit and dissipating heat radiated from the resistor unit; A fuse unit connected to the resistor unit and disconnected from the resistor unit when a temperature of the resistor unit reaches a set temperature; And a base portion on which the resistor portion and the connection terminal connected to the fuse portion are installed.

The resistance unit may include: a high resistance unit connected to a first connection terminal provided on the base unit; And a row resistor portion having one end connected to the high resistance portion and the other end connected to a third connection terminal provided on the base portion.

The resistance portion may be disposed between the high resistance portion and the low resistance portion and has one end connected to the high resistance portion and the other end connected to the second connection terminal provided on the base portion and the low resistance portion And a middle resistance portion.

The high resistance part may include: a resistance extension part extending to a predetermined length; A fuse temperature difference compensator formed at one end of the resistance extension unit adjacent to the low resistance unit and having the fuse unit coupled thereto; And a terminal connection portion formed at the other end of the resistance extension portion and connected to the first connection terminal.

The resistance extension portion may include a boundary portion formed with the terminal connection portion and connected to the row resistance portion; A spacing extension formed at the boundary portion so as to extend in a direction away from the first connection terminal; A proximal extension portion disposed between the spacing extension portion and the row resistance portion and having the fuse temperature difference compensating portion; And an intermediate extension connecting the spacing extension and the proximal extension.

The heat dissipation unit may include: a first heat dissipation plate disposed to cover one side of the resistance unit; A second heat sink disposed to cover the other side of the resistance portion; And an unsticking prevention unit for tightly coupling the first heat sink and the second heat sink to the resistance unit.

The first heat radiating plate may include: a cover portion covering the resistor portion; A cover leg portion extending from the cover portion to the base portion side and having an end coupled to the base portion and supporting the cover portion and the base portion so as to be spaced apart from each other; And a heat transfer reduction part formed between the cover part and the cover leg part to reduce the cross-sectional area of the connection part between the cover part and the cover leg part.

Preferably, the cover leg portion is formed to extend from the longitudinal middle portion of the cover portion toward the base portion, and the heat transfer reduction portion is formed to extend along the longitudinal direction of the cover portion.

The cover leg portion may include an extending leg portion extending from the cover portion toward the base portion; And a supporting force reinforcing part formed by bending a part of the extending leg part in a direction perpendicular to the extending direction of the extending leg part.

The lifting prevention portion may include a circumferential tightening portion protruding from the edge of the first heat sink to the second heat sink and being bent at an end thereof and coming into close contact with the second heat sink; And an intermediate adhesion part protruding from the middle part of the first heat radiating plate toward the second heat radiating plate and passing through the middle part of the second heat radiating plate and being bent at an end thereof and coming into close contact with the second heat radiating plate .

The resistance unit may include: a resistance connection port that penetrates the heat dissipation unit and contacts the resistance unit; And an elastic fuse having one end coupled to the fuse connection terminal provided at the base portion, the other end soldered to the resistance connection port, and soldering melted at a set temperature to separate from the resistor connection port.

According to the motor control register of the present invention, since the heat dissipated from the resistance portion is dissipated through the heat dissipation portion, the overheat of the resistance portion can be further delayed. When the resistance portion overheats at the set temperature, the fuse portion is short- The risk of fire can be solved. Thus, the safety against overheating of the resistance portion can be further improved.

1 is a front perspective view schematically showing a motor control register according to an embodiment of the present invention.
2 is a rear side perspective view schematically showing a motor control register according to an embodiment of the present invention.
3 is a fragmentary exploded perspective view schematically showing a motor control register according to an embodiment of the present invention.
4 is a front view schematically showing a resistance portion of a motor control register according to an embodiment of the present invention.
5 is a sectional view taken along the line A-A 'in Fig.

Hereinafter, an embodiment of a motor control register 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 motor control register according to an embodiment of the present invention, and FIG. 2 is a rear side perspective view schematically showing a motor control register according to an embodiment of the present invention.

4 is a front view schematically showing a resistance portion of a motor control register according to an embodiment of the present invention, and FIG. 5 is a front view of the motor control register according to the embodiment of the present invention. 1 is a cross-sectional view taken along the line A-A 'in Fig.

3, a motor control register according to an embodiment of the present invention includes a resistance portion 10, a heat dissipation portion 20, a fuse portion 30, and a base portion 40.

The resistance portion 10 includes a resistance member 11 connected in series so that a plurality of resistors form a plate. The front surface and the rear surface of the resistance member (11) are covered by a plate-like insulating member (18). The heat dissipation unit 20 is formed of a heat dissipation material capable of dissipating heat generated in the plate-like resistance unit 10 through the air into the air, and is installed to cover the resistance unit 10. [ As the heat radiating material, a metal member having thermal conductivity can be applied.

The fuse unit 30 is electrically and physically connected to the resistance unit 10 through the heat dissipation unit 20 and is disconnected from the resistance unit 10 when the temperature of the resistance unit 10 reaches the set temperature do. The base portion 40 is a portion where a plurality of connection terminals for electrically connecting the power supply portion of the vehicle to the resistor portion 10 and the fuse portion 30 are installed. The plurality of resistors provided in the resistance unit 10 are selectively connected to a plurality of connection terminals, respectively.

The base portion 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, the fuse connection terminal 45, . The terminal mounting base 41 includes a plate portion provided with a plurality of connection terminals and a connector coupling portion capable of coupling the connector of the power supply portion. The terminal mounting base 41 is made of a heat insulating material such as synthetic resin.

The first connection terminal 42, the second connection terminal 43, the third connection terminal 44, and the fuse connection terminal 45 are installed so as to pass through the plate portion. One side of the first connecting terminal 42, the second connecting terminal 43, the third connecting terminal 44 and the fuse connecting terminal 45 located on the upper side of the plate portion is connected to a plurality of resistors And the fuse unit 30 and the other side located below the plate unit is connected to the connector of the power supply unit located inside the connector coupling unit and coupled to the connector coupling unit.

Referring to FIG. 4, the resistance member 11 according to an embodiment of the present invention 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 through 3, one end of the high resistance part 12 is connected to the resistance connection port 31 of the fuse part 30 and the other end is connected to the first connection terminal 42 provided on the base part 40, Lt; / RTI >

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 low 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 low resistance section 17 is connected to the high resistance section 12 and the middle resistance section 16 to form a continuous plate and the other end is connected to the third connection terminal 44 provided to the base section 40 do.

The high resistance section 12, the middle resistance section 16, and the low resistance section 17 are connected in series as described above to form a rectangular flat plate and have a first connection terminal 42 serving as a conduction path through which current is discharged, 2 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.

At this time, the high resistance portion 12 forms the left side portion and the upper side portion of the resistance member 11. The middle resistance portion 16 is disposed on the right side of the high resistance portion 12, and the upper portion thereof is disposed below the upper portion of the high resistance portion 12. The lower portion of the middle resistance portion 16 is located at the lower middle portion of the resistance member 11 and the upper portion thereof is located at the right middle portion of the resistance member 11. Further, the low 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. Thus, the low resistance portion 17 forms the lower right portion of the resistance member 11. [

Referring to FIG. 4, the high resistance part 12 according to an embodiment of the present invention includes a resistor extension part 13, a fuse temperature difference compensating part 14, and a terminal connection part 15.

The resistance extension portion 13 is a portion constituting the body of the high resistance portion 12 and is formed so as to extend by a first predetermined length with a first setting width. Referring to FIG. 4, the resistance extension part 13 according to an embodiment of the present invention includes a boundary part 131, a spaced extension part 132, a proximal extension part 133, and an intermediate extension part 134.

The boundary portion 131 is a portion of the resistance extension portion 13 that forms a boundary with the middle resistance portion 16. The boundary portion 131 is located at the lower portion of the resistance portion 10 and is connected to the first connection terminal 42. 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 is formed to extend upward from the boundary portion 131 to be spaced apart from the first connection terminal 42 and form the left side portion of the resistance member 11. [ The proximal extension portion 133 is disposed between the spacing extension portion 132 and the middle resistance portion 16 and is formed to extend downward to a point where it does not interfere with the boundary portion 131.

The proximal extension portion 133 is located closer to the low resistance portion 17 than the spacing extension portion 132 and in particular the lower portion of the proximal extension portion 133 has a low resistance (17). ≪ / RTI >

The intermediate extension 134 connects the spaced extension 132 to the proximal extension 133. [ The intermediate extension portion 134 includes an upper extension portion extending rightward from the upper portion of the spacing extension portion 132 and a lower extension portion extending continuously from the lower portion to the lower portion and extending leftward from the right portion of the upper extension portion, And a lower extension connected to an upper portion of the lower portion.

The fuse temperature difference compensating portion 14 is a portion to which the resistance connection port 31 of the fuse portion 30 is coupled and is connected to one end portion of the resistance extension portion 13 which is relatively close to the low resistance portion 17, And is formed 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 unit 30 is connected to the fuse connecting terminal 45 provided in the base unit 40 and the current flows into the high resistance unit 12 through the fuse connecting terminal 45 and the fuse unit 30. [ When the current flowing into the high resistance portion 12 flows to the first connection terminal 42 only through the high resistance portion 12, the motor has three rotation speeds and the high resistance portion 12 and the middle resistance portion 16 The motor has two rotation speeds lower than that of the third stage and flows through the high resistance portion 12, the middle resistance portion 16 and the low resistance portion 17 to the third When the current flows to the connection terminal 44, the motor has a lower rotation speed than the second rotation speed.

The resistance heat is generated in proportion to the energization time of each of the high resistance part 12, the middle resistance part 16 and the low resistance part 17. Since the current flows mainly in the high resistance part 12 as described above Accordingly, the fuse unit 30 is installed to receive the resistance heat from the high resistance unit 12.

According to an embodiment of the present invention, since the fuse temperature difference compensating portion 14 is formed on the lower right side of the high resistance portion 12 in the vicinity of the low resistance portion 17 as described above, The resistance heat generated in the row resistance portion 17 is more affected by the fuse portion 30 than to the fuse portion 30 at the lower left portion which is relatively spaced from the row resistance portion 17.

When the fuse portion 30 is coupled to the left lower portion of the high resistance portion 12 which is relatively spaced apart from the low resistance portion 17, the open or not of the fuse portion 30 is limited only to the heat generation temperature of the high resistance portion 12 The open / closed state of the fuse unit 30 is determined depending on not only the heat generation temperature of the high resistance unit 12 but also the heat generation temperature of the low resistance unit 17, The function of the fuse unit 30 provided as a safety measure against overheating of the fuse unit 30 can be more stably performed.

1 and 3, 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 3, a first heat sink 21 according to an embodiment of the present invention includes a cover portion 22, a cover leg 23, and a heat transfer reduction portion 24.

The cover portion 22 covers the resistor portion 10 and has a panel shape so as to be in contact with the rear portion of the resistor portion 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 portion coupled to the base portion 40. And is disposed so as to be spaced apart from the cover portion 22 and the base portion 40 by the cover leg portion 23.

The cover unit 22 and the base unit 40 are spaced apart from each other, so that damage such as fusion of the base unit 40 due to resistance heat conducted to the cover unit 22 can be prevented. Referring to FIG. 5, the cover leg 23 according to an embodiment of the present invention includes an extension leg 231 and a support force reinforcing portion 232.

The extension leg portion 231 is formed to extend downward toward the base portion 40 from the left side portion and the right side portion of the cover portion 22. The extending leg portion 231 can be formed by bending the left side portion and the right side portion of the cover portion 22 forward. The supporting force reinforcing portion 232 is formed by bending a part of the extending leg portion 231 in the horizontal direction so as to reinforce the rigidity of the extending leg portion 231.

The support force reinforcing portion 232 can be formed by bending one side portion in the width direction of the extending leg portion 231 to the left or right side that is perpendicular to the extending direction of the extending leg portion 231, for example, the front portion or the rear portion. By forming the supporting force reinforcing portion 232, the rigidity against the bending force and the normal force acting on the extending leg portion 231 by the self weight of the resistance portion 10 and the heat radiation portion 20 can be further strengthened.

The heat transfer reduction portion 24 is hollowly formed between the cover portion 22 and the cover leg portion 23 so as to reduce the cross-sectional area of the connection portion between the cover portion 22 and the cover leg portion 23. [ The cover leg portion 23 according to an embodiment of the present invention is formed to extend from the longitudinal middle portion of the cover portion 22 toward the base portion 40 side. The heat transfer reduction portion 24 is formed to extend along the longitudinal direction of the cover portion 22 between the cover portion 22 and the cover leg portion 23. [

The cover leg portion 23 is extended from the lower portion of the cover portion 22 to the base portion 40 side by forming the heat transfer reduction portion 24, (40). The heat of the cover portion 22 is transmitted to the base portion 40 through the cover leg portion 23. By forming the cover leg portion 23 to be longer, It is possible to cool more smoothly and thus to more reliably prevent thermal damage to the base portion 40. [

In addition, by forming the heat transfer reduction portion 24, the heat on the cover portion 22 side only through a partial cross-sectional area of the boundary portion between the cover portion 22 and the cover leg portion 23 where the heat transfer reduction portion 24 is not formed It can be conducted to the cover leg portion 23 so that the thermal damage to the base portion 40 can be more stably prevented by further reducing the amount of heat conducted to the cover leg portion 23. [

The second heat sink 25 is disposed in front of the first heat sink 21 with the resistor 10 therebetween. The second heat sink 25 has a panel shape to cover the front surface of the resistor 10. The lift preventing portion 27 binds the first heat radiating plate 21 and the second heat radiating plate 25 in tight contact with the resistance portion 10. Referring to FIGS. 1 and 3, the trip preventing portion 27 according to an embodiment of the present invention 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 from the edge of the first heat radiating plate 21, more specifically, to the front side of the second heat radiating plate 25 at the left side, the right side and the upper side of the first heat sink 21, The end of the second heat sink 25 extending toward the front may be bent toward the second heat sink 25 so as to enclose the edge of the second heat sink 25 and be brought into close contact with 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 intermediate 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 intermediate portion of the second heat dissipating plate 25. The intermediate adhered portion 29 can protrude forward by bending a part of the middle portion of the first heat dissipating plate 21 by bending the front portion of the first heat dissipating plate 21 in a forward direction and bend the end portion passing through the second heat dissipating plate 25 toward the second heat dissipating plate 25 To 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 peripheral tight contact portion 28. The intermediate portion of the first heat radiating plate 21 and the second heat radiating plate 25 can be firmly 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 radiation plate 21 and the second heat radiation plate 25 without being stagnated on the inner space portion corresponding to the clearance between the first heat radiation plate 21 and the second heat radiation plate 25 It can be cooled and dissipated into the air.

Referring to FIG. 1, a fuse unit 30 according to an embodiment of the present invention includes a resistance connection port 31 and an elastic fuse 32.

The resistance connection port 31 is a portion of the fuse unit 30 which is fixedly mounted on the resistance unit 10. The resistance connection port 31 is 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 so as to pass through a point corresponding to the fuse temperature difference compensating portion 14 of the resistance member 11 and one end portion of the resistance connection port 31 penetrates through the connection hole portion 26, The fuse temperature difference compensating unit 14 of the second embodiment. The heat dissipated from the resistance member 11 is conducted to the resistance connection port 31 at a point corresponding to the fuse temperature difference supplement unit 14. [

The elastic fuse 32 is a part of the fuse unit 30 which has a leaf spring structure and is fixed to the fuse connection terminal 45. The lower portion of the elastic fuse 32 is coupled to the fuse connection terminal 45 provided in the base portion 40 and the upper portion thereof is soldered to the resistance connection port 31. The soldering melts by the heat transferred to the resistance connection port 31 when the resistance member 11 overheats to the set temperature and the elastic fuse 32 is separated from the resistance connection port 31. [ Referring to FIG. 3, the elastic fuse 32 according to an embodiment of the present invention includes a fixing portion 321, an intermittent portion 322, and an extended fuse portion 323.

The fixing portion 321 is a portion fixed to the fuse connecting terminal 45 and constitutes the lower portion of the elastic fuse 32. The intermittent portion 322 is a portion to be soldered to the resistance connection port 31, and forms the upper portion of the elastic fuse 32. The extended fuse portion 323 is formed so as to extend linearly between the fixed portion 321 and the intermittent portion 322. A single metal plate having a rod shape or a pin shape can be integrally formed by bending a plurality of times.

More specifically, by bending the portion corresponding to the boundary between the fixed portion 321 and the extended fuse portion 323 and the portion corresponding to the boundary between the extended fuse portion 323 and the intermittent portion 322 at a set angle, It is possible to form the elastic fuse 32 in the form of a leaf spring in which the coil portion 321, the extension fuse portion 323, and the intermittent portion 322 are continuously connected.

The extension fuse portion 323 according to an embodiment of the present invention is formed to be inclined forward with respect to the fixing portion 321. [ The extended fuse portion 323 has a shape in which the distance in the forward and backward direction from the resistance connection port 31 is gradually increased toward the upper side in a state where the fixing portion 321 is coupled to the fuse connecting terminal 45. [ The extension fuse portion 323 can be formed by bending the boundary with the fixing portion 321 forward by one set angle.

The reason why the intermittent portion 322 is soldered to the resistance connection port 31 is that the resistance connection port 31 is elastically deformed to bend toward the resistance connection port 31 at such an angle that the extended fuse portion 323 is not permanently deformed Lt; / RTI > At this time, in order to prevent the extension fuse portion 323 from being permanently deformed, it is preferable to perform elastic deformation within an acute angle range. When the soldering member melts as the resistance member 11 is overheated, the extended fuse portion 323 is bent forward by the restoring force so that the intermittent portion 322 is separated from the resistance connection port 31 and passes through the resistance member 11 Current flow is cut off.

According to the motor control register of the present invention having the above-described structure, the heat dissipated from the resistance portion 10 can be dissipated through the heat dissipation portion 20 to further delay the overheat of the resistance portion 10, The fuse unit 30 is short-circuited and the risk of fire due to overheating of the resistance unit 10 can be solved. Thus, the safety against overheating of the resistance portion 10 can be further improved.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. I will understand. 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 adhered portion 30: fuse portion
31: Resistance connection port 32: Elastic fuse
40: base portion 41: terminal mounting base
42: first connection terminal 43: second connection terminal
44: third connection terminal 45: fuse connection terminal
131: boundary portion 132:
133: proximal extension part 134: intermediate extension part
231: extension leg portion 232: support force reinforcing portion
321: Fixing portion 322:
323: Extension fuse part

Claims (11)

A resistor part;
A heat dissipation unit covering the resistor unit and dissipating heat radiated from the resistor unit;
A fuse unit connected to the resistor unit and disconnected from the resistor unit when a temperature of the resistor unit reaches a set temperature; And
And a base portion on which the resistor portion and the connection terminal connected to the fuse portion are mounted.
The method according to claim 1,
Wherein the resistance portion comprises:
A high resistance part connected to a first connection terminal provided on the base part; And
And a low resistance part having one end connected to the high resistance part and the other end connected to a third connection terminal provided on the base part.
3. The method of claim 2,
Wherein the resistance portion comprises:
A second connection terminal disposed between the high resistance part and the low resistance part, one end connected to the high resistance part and the other end connected to the base part, and a middle resistance part connected to the low resistance part; Wherein the motor control register comprises:
The method according to claim 2 or 3,
The high-
A resistance extension part extending to a set length;
A fuse temperature difference compensator formed at one end of the resistance extension unit adjacent to the low resistance unit and having the fuse unit coupled thereto; And
And a terminal connection portion formed at the other end of the resistance extension portion and connected to the first connection terminal.
5. The method of claim 4,
The resistance-
A boundary portion formed with the terminal connection portion and connected to the row resistance portion;
A spacing extension formed at the boundary portion so as to extend in a direction away from the first connection terminal;
A proximal extension portion disposed between the spacing extension portion and the row resistance portion and having the fuse temperature difference compensating portion; And
And an intermediate extension connecting the spacing extension and the proximal extension.
The method according to claim 1,
The heat-
A first heat sink disposed to cover one side of the resistor portion;
A second heat sink disposed to cover the other side of the resistance portion; And
And an anti-tripping portion for tightly connecting the first heat sink and the second heat sink to the resistance portion.
The method according to claim 6,
The first heat-
A cover portion covering the resistor portion;
A cover leg portion extending from the cover portion to the base portion side and having an end coupled to the base portion and supporting the cover portion and the base portion so as to be spaced apart from each other; And
And a heat transfer reduction part formed between the cover part and the cover leg part so as to reduce a cross-sectional area of a connection part between the cover part and the cover leg part.
8. The method of claim 7,
Wherein the cover leg portion is formed to extend from the longitudinal middle portion of the cover portion toward the base portion side,
Wherein the heat transfer reduction portion is formed to extend along a longitudinal direction of the cover portion.
8. The method of claim 7,
The cover leg portion
An extending leg portion extending from the cover portion toward the base portion; And
And a supporting force reinforcing part formed by bending a part of the extending leg part in a direction perpendicular to an extending direction of the extending leg part.
The method according to claim 6,
The anti-
A circumferential contact part protruding from an edge of the first heat radiating plate toward the second heat radiating plate and being bent at an end thereof to be brought into close contact with the second heat radiating plate; And
And an intermediate contact part protruding from the intermediate part of the first heat radiating plate toward the second heat radiating plate and passing through the middle part of the second heat radiating plate and being bent at an end thereof to be in close contact with the second heat radiating plate. Motor control register.
The method according to claim 1,
Wherein the fuse portion includes:
A resistance connection port penetrating through the heat dissipation part and in contact with the resistance part; And
And an elastic fuse having one end coupled to a fuse connection terminal provided at the base portion and the other end soldered to the resistance connection port and soldering melted at a set temperature to separate from the resistor connection port. Control register.
KR1020150136615A 2015-09-25 2015-09-25 Resistor for controlling motor KR20170037752A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190011364A (en) * 2017-07-24 2019-02-07 동아하이테크 주식회사 Resettable resistor apparatus for vehicle
JP2019212733A (en) * 2018-06-04 2019-12-12 マレリ株式会社 Resistor for air fan speed control
CN115938697A (en) * 2023-03-02 2023-04-07 南通锦发电缆有限公司 Cable safety protection type resistor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190011364A (en) * 2017-07-24 2019-02-07 동아하이테크 주식회사 Resettable resistor apparatus for vehicle
JP2019212733A (en) * 2018-06-04 2019-12-12 マレリ株式会社 Resistor for air fan speed control
CN115938697A (en) * 2023-03-02 2023-04-07 南通锦发电缆有限公司 Cable safety protection type resistor
CN115938697B (en) * 2023-03-02 2024-04-30 南通锦发电缆有限公司 Cable safety protection type resistor

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