KR20230001322A - A relay for a vehicle and a relay assembly having the same - Google Patents

Abstract

The present invention relates to a vehicle relay, which comprises: an arc chamber having a receiving space therein and receiving a fixed contact point fixed to one side to expose at least a part therein and a movable contact point that comes in contact with or is spaced apart from the fixed contact point by being disposed to be movable on the other side; a cover plate coupled to shield the other side of the arc chamber; a support spring elastically spacing between the movable contact point and the cover plate; an insulating fluid filling inside the receiving space to absorb arc occurring between the fixed contact point and the movable contact point; and a first circulation module supplying or circulating an insulating fluid inside the arc chamber. The purpose of the present invention is to safely and quickly extinguish an arc generated between the fixed contact point and the movable contact point.

Description

A relay for a vehicle and a relay assembly for a vehicle having the same {A relay for a vehicle and a relay assembly having the same}

The present invention relates to a relay for a vehicle, and more particularly, to a relay for a vehicle that can prevent burnout due to an arc discharge while stably operating a relay applied to a vehicle.

In general, an electromagnetic switch is a means for controlling high voltage and large current by driving a contact device by applying current to a control coil such as a contactor and a relay. It is a device.

High-voltage DC contact devices are used in photovoltaic power generation, electric vehicles, electric vehicle chargers, and energy storage systems.

However, in recent years, the capacity of a device using a high voltage DC contact device is gradually increasing, and the short circuit current is also increasing accordingly, so the environment in which the fixed contact and the movable contact are connected and separated is very harsh.

These electromagnetic switches are generally energized by contact between a fixed contact point and a movable contact point, and in particular, a permanent magnet is used to control an arc generated when a high voltage DC power source is cut off. Arrange the permanent magnet appropriately near the fixed contact point and the movable contact point where the arc occurs, control the arc by using the force determined by the strength, direction and current direction of the magnetic flux generated from the permanent magnet, and the extension length of the arc, and cool it. and use the blocking mechanism to extinguish the fire.

However, even in an electromagnetic switch applied with a permanent magnet, there are cases where arcs cause damage to the electromagnetic switch. Therefore, in order to increase the operation reliability of the electromagnetic switch, it is necessary to develop additional technology that not only extinguishes the arc but also protects the electronic switch from the generated arc. It is an urgent situation.

Korean Registered Patent Publication No. 10-1902013

The present invention is to solve this problem, and more particularly, to provide a vehicle relay capable of safely and quickly extinguishing an arc generated between a fixed contact point and a movable contact contact or spaced apart from each other in an arc chamber. There is a purpose.

The present invention for carrying out the above object is formed with a receiving space inside, a fixed contact point fixed on one side so as to be at least partially exposed to the inside, and a fixed contact point arranged to be movable on the other side so as to be in contact with or spaced apart from the fixed contact points. an arc chamber in which a movable contact is accommodated; a solenoid unit that moves the movable contact point of the arc chamber to come into contact with or be separated from the fixed contact point; a supply pipe supplying insulating fluid to the arc chamber; and a discharge pipe discharging an insulating fluid inside the arc chamber. Including, it provides a vehicle relay characterized in that provided to circulate the insulating fluid in the arc chamber by the supply pipe and the discharge pipe.

The supply pipe and the discharge pipe may be disposed on opposite sides of the arc chamber or on both sides adjacent to each other.

The supply pipe and the discharge pipe may be arranged side by side on any one of the side surfaces and the top surface of the arc chamber.

Both the supply pipe and the discharge pipe may be disposed in the solenoid part.

The supply pipe and the discharge pipe may be respectively disposed in the arc chamber and the solenoid part.

The vehicle relay further includes a cover plate disposed between the arc chamber and the solenoid part, and the supply pipe and the discharge pipe are disposed in one of the arc chamber, the solenoid part, and the cover plate, and in the other one. A discharge pipe may be arranged.

In addition, the present invention provides an arc chamber in which a fixed contact fixed in an internal accommodating space and a movable contact arranged to be movable and in contact with or spaced apart from the fixed contact are accommodated, and the movable contact of the arc chamber is connected to the fixed contact. A first vehicle relay including a solenoid unit that moves to be in contact with or separated from each other, a first supply pipe for supplying insulating fluid to the arc chamber, and a first discharge pipe for discharging insulating fluid inside the arc chamber; An arc chamber in which a fixed contact fixed in the inner accommodating space and a movable contact arranged to be movable and in contact with or separated from the fixed contact are accommodated, and the movable contact of the arc chamber is moved to come into contact with or be separated from the fixed contact. a second vehicular relay including a solenoid unit that operates, a second supply pipe for supplying insulating fluid to the arc chamber, and a second discharge pipe for discharging insulating fluid inside the arc chamber; and a circulation module connecting the first vehicle relay and the second vehicle relay to circulate the insulating fluid inside each arc chamber.

The circulation module includes a tank for storing the insulating fluid, a first connection pipe connecting the tank to supply the insulating fluid to the first supply pipe or the second supply pipe, and a second pipe connecting the first discharge pipe and the second discharge pipe. It may include a connection pipe, a pump provided on the first connection pipe to provide supply pressure of the insulating fluid, and a chiller provided on the second connection pipe to cool the discharged insulating fluid.

According to the vehicle relay and the vehicle relay assembly having the same according to the present invention,

First, by injecting insulating fluid into the accommodation space inside the arc chamber, even if an arc discharge occurs, it can be easily extinguished,

Second, it is possible to prevent arc discharge from occurring in the air inside the accommodation space by filling the insulating fluid at the height of the contact surface at which the fixed contact and the movable contact are in contact or spaced apart, or at least at a higher height so that the contact surface is locked,

Third, the amount of insulating fluid to be injected into the arc chamber can be selectively adjusted,

Fourth, even if the insulating fluid evaporates, the greenhouse effect can be minimized because the global warming potential is maintained below 100.

Fifth, since the cooled insulating fluid can be supplied to each relay through the circulation module, there is an effect of solving the temperature stress of the insulating fluid that absorbs the arc discharge.

1 is a perspective view showing a vehicle relay according to an embodiment of the present invention.
FIG. 2 is an exploded perspective view illustrating an exploded vehicle relay shown in FIG. 1 .
FIG. 3 is a perspective view partially enlarged and illustrating an arc extinguishing unit and a solenoid unit of the vehicle relay shown in FIG. 1 .
FIG. 4 is a cross-sectional view illustrating an area II′ of the vehicle relay shown in FIG. 3 .
5 is a reference diagram illustrating a structure in which an insulating fluid of a vehicle relay according to an embodiment of the present invention circulates.
6 is a reference diagram illustrating various embodiments in which a circulation module of the vehicle relay shown in FIG. 5 is connected.

Since the present invention can make various changes and have various embodiments, specific embodiments are illustrated and described in the drawings.

However, this is not intended to limit the present invention to specific embodiments, and should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention.

Terms including ordinal numbers, such as first and second, may be used to describe various components, but the components are not limited by the terms.

These terms are only used for the purpose of distinguishing one component from another.

For example, a second element may be termed a first element, and similarly, a first element may be termed a second element, without departing from the scope of the present invention.

The terms and/or include any combination of a plurality of related recited items or any of a plurality of related recited items.

It is understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, but other elements may exist in the middle. It should be.

On the other hand, when an element is referred to as “directly connected” or “directly connected” to another element, it should be understood that no other element exists in the middle.

Terms used in this application are only used to describe specific embodiments, and are not intended to limit the present invention.

Singular expressions include plural expressions unless the context clearly dictates otherwise.

In this application, the terms "include" or "have" are intended to designate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, but one or more other features It should be understood that the presence or addition of numbers, steps, operations, components, parts, or combinations thereof is not precluded.

Hereinafter, the embodiments will be described in detail with reference to the accompanying drawings, but the same or corresponding components regardless of reference numerals are given the same reference numerals, and overlapping descriptions thereof will be omitted.

1 is a perspective view showing a vehicle relay according to an embodiment of the present invention, FIG. 2 is an exploded perspective view showing an exploded vehicle relay shown in FIG. 1, and FIG. 3 is an arc extinguishing unit of the vehicle relay shown in FIG. It is a perspective view showing a partially enlarged solenoid part, and FIG. 4 is a cross-sectional view showing the region II' of the vehicle relay shown in FIG. 3 .

1 to 4, the vehicle relay 10 according to the present invention includes an arc extinguishing unit 100 and a solenoid unit 200, and a cover 300 and a housing 400 coupled to cover them from the top and bottom, respectively. include

The cover 300 is disposed to surround the outside of the arc extinguishing unit 100, and a portion of the fixed contact 110 is exposed to the outside.

In addition, the housing 400 is arranged to surround the outside of the solenoid unit 200 and is combined with the cover 300 to realize the outer appearance of the vehicle relay 10 . As shown in FIG. 1A , the housing 400 may be fixed to a structure constituting a vehicle (not shown) using horizontal brackets 410 and 420 . The horizontal brackets 410 and 420 are provided on one side of the housing 400 and the other side opposite to the one side, and may be fixed through fasteners along the height direction of the housing 400 . In addition, a connector (not shown) for supplying power and control signals to the solenoid unit 200 may be connected to the housing 400 .

Also, the housing 400 may be fixed using a vertical bracket 410' as shown in FIG. 1B. The vertical brackets 410' are provided on one side of the housing 400 and the other side opposite to the one side, and may be fixed through fasteners along the width or thickness direction of the housing 400. Although not shown in the drawing, a vertical bracket (not shown, corresponding to 420') is provided on the other side of the vertical bracket 410'. Accordingly, a horizontal bracket or a vertical bracket may be selectively applied to the bracket fixing the housing 400 according to the fixing position of the housing 400 . Hereinafter, the housing 400 will be described based on the fact that the horizontal brackets 410 and 420 are provided.

In addition, the arc extinguishing unit 100 may be generated between the fixed contact 110 to which the high voltage and high current is applied and the movable contact 120 that is contacted (or connected) or spaced apart to connect the fixed contact 110 to each other It can extinguish an arc.

The arc extinguishing unit 100 includes an arc chamber 130, a cover plate 140, an insulating fluid (refer to FIG. 4, 132), an edge seal 150, a holder 160, a permanent magnet and an injection Hose 170 is included.

First, the arc chamber 130 has a pair of fixed contacts 110 provided on one side, an accommodation space 131 formed therein, and is arranged to be movable within the accommodation space 131 so that the fixed contacts 110 Accommodates the movable contact 120 disposed to selectively contact or be spaced apart from, and made of an insulating material. That is, the switching operation is performed while the fixed contact point 110 and the movable contact point 120 contact each other or are separated from each other.

The arc chamber 130 has a structure in which the other side (eg, lower side) is open, and the cover plate 140 is coupled to cover the other open side of the arc chamber 130 . At this time, an edge seal 150 is provided between the arc chamber 130 and the cover plate 140 to seal the space between the arc chamber 130 and the cover plate 140 . In addition, a shaft pad 141 is provided on the cover plate 140 in the accommodation space 131 so as not to interfere with the edge seal 150. The shaft pad 141 may provide a function of restricting the vertical movement of the shaft 210 to be described later.

In addition, an injection hose 170 is provided on one side of the cover plate 140 . The injection hose 170 may supply a set amount of the insulating fluid 132 into the accommodation space 131 and may be sealed after the supply of the insulating fluid 132 is completed. Although not shown in the drawing, a plurality of injection hoses 170 may be provided.

A support spring 121 is provided between the movable contact 120 and the shaft pad 141 in the accommodation space 131 .

In the shaft 210 to be described later, a first retainer ring 211 is coupled to an outer circumferential surface coupled to partially protrude from an upper portion of the movable contact 120, and a second retainer ring 212 is coupled on the shaft pad 141. . The movable contact point 120 is coupled so that the shaft 210 passes through the center and is elastically disposed between the first retainer ring 211 and the second retainer ring 212 by the support spring 121 . Therefore, the movable contact point 120 can absorb at least a portion of the shock through the support spring 121 in the process of contacting the fixed contact point 110 while moving on one end of the shaft 210 .

A holder 160 is disposed on an outer side of the arc chamber 130 to surround the arc chamber 130 . The holder 160 is disposed to be spaced apart from the arc chamber 130 by a set interval. Permanent magnets 161a and 161b are provided in a space spaced apart between the holder 160 and the arc chamber 130 . The permanent magnets 161a and 161b are disposed in opposite directions between the holder 160 and the arc chamber 130, and at least two permanent magnets facing each other with the arc chamber 130 as the center are arranged so that attractive forces act on each other. It can be. In this embodiment, a pair of permanent magnets 161a attached to one side of the holder 160 by attraction and a pair of permanent magnets 161b attached to each other by attraction are disposed on the other side, and the arc chamber ( 130) will be described as an example of being arranged so that attractive forces act on each other. The permanent magnets 161a and 161b may absorb part of the arc generated inside the accommodating space 131 .

And, the solenoid unit 200 provides a function of selectively moving the movable contact point 120 in the direction of the fixed contact point 110 with the cover plate 140 as the center.

The solenoid unit 200 includes a shaft 210, a core 220, a plunger 213, a bobbin 230, a coil 240, a yoke 250, and a return spring 214.

The shaft 210 has a movable contact 120 coupled to one end and a plunger 213 coupled to the other end. Therefore, when current is applied to the coil 240, the plunger 213 rises by the electromagnetic force and the shaft 210 simultaneously rises. there is.

The outer circumferential surface of the shaft 210 is disposed so as to surround the core 220 . The shaft 210 is provided in a shaft or rod shape, and is located at the center of the arc extinguishing unit 100 and the solenoid unit 200. The core 220 may be fixed to the central region of the cover plate 140 while the shaft 210 is movably disposed therein.

A bobbin 230 is provided outside the core 220 to surround it, and a coil 240 is provided to surround the outer circumferential surface of the bobbin 230 .

At this time, the cylinder seal 260 is coupled to surround the plunger 213 and the core 220 . The cylinder seal 260 may shield a space between the bobbin 230 and the core 220 . Accordingly, the shaft 210 and the plunger 213 may reciprocate in the vertical direction around the core 220 inside the cylinder seal 260 . In addition, a return spring 214 is inserted on the shaft 210 between the core 220 and the plunger 213 to elastically space the core 220 and the plunger 213 apart.

In addition, the solenoid unit 200 includes a yoke 250 coupled to surround the coil 240 and the bobbin 230 on the rear surface of the cover plate 140 .

For example, in the vehicle relay 10, the movable contact 120, the shaft 210, and the plunger 213 move in conjunction with each other in a coupled state, and support spring 121 in a state in which power is not supplied to the coil 240. The movable contact 120 rises to contact the fixed contact 110 by the elastic restoring force of ), and when power is supplied to the coil 240, the plunger 213 is generated by the electromagnetic force (eg, repulsive force) generated in the core 220. ) can drive the shaft 210 and the movable contact 120 to descend together while being spaced apart.

A supply pipe 510 and a discharge pipe 520 are provided in the arc chamber 130 . The supply pipe 510 and the discharge pipe 520 may provide a function of supplying or discharging insulating fluid, respectively. In this embodiment, the supply pipe 510 and the discharge pipe 520 are respectively disposed on both sides of the arc chamber 130 as an example, and may be disposed in other positions.

FIG. 5A is a reference view illustrating an enlarged view of an arc extinguishing unit of the vehicle relay shown in FIG. 4 from the front.

Referring to FIG. 5A , an insulating fluid 132 is injected into the accommodating space 131 of the arc extinguishing unit 100 of the vehicle relay 10 . In FIG. 5A, the state in which the insulating fluid 132 is injected represents a fixed state based on vertical brackets (see FIG. 1A, 410 and 420) as shown in FIG. 1A.

The insulating fluid 132 may include insulating oil, insulating water, and the like, excluding air. For example, the insulating fluid 132 may be insulating oil used for electrical insulation of transformers, circuit breakers, capacitors, cables, and the like. Most of the insulating oil may be made of petroleum, or diphenyl chloride, which is a non-flammable synthetic insulating oil, may be used. Insulating oil has a similar structure to general lubricating oil, and can be used after refining hydrocarbon oil with a specific gravity of about 0.9 and removing moisture or dust.

In addition, the insulating fluid 132 may have dielectric strength in the range of 20 kV/0.1 in to 50 kV/0.1 in for arc extinguishing. More preferably, the dielectric strength of the insulating fluid may satisfy 30 kV/0.1 in or more. In addition, the insulating fluid 132 must have a global warming potential (GWP) of 100 or less. The global warming potential is a measure of how much heating effect of 1Kg of a greenhouse gas is released into the atmosphere compared to _1Kg of carbon dioxide for a specific period of time. Methane (CH ₄₎ is 34, nitrous oxide (N ₂ O) is 298, hydrofluorocarbon (HFC-134a) is 1,550, and chlorofluorocarbon (CFC-11) is 5350.

All greenhouse gases in the atmosphere have a lifetime. Considering this lifetime, even the same greenhouse gases have different effects on global warming over 20 and 100 years. For example, methane (CH ₄₎ has a short lifespan, so the global warming potential for 20 years is 86, but the global warming potential for 100 years is low at 34.

Also, the insulating fluid 132 may be filled to a first height h1 corresponding to the height of the contact surface 111 where the fixed contact 110 and the movable contact 120 come into contact in the arc chamber 130 . This is because the arc is generated at the height of the contact surface 111 where the fixed contact 110 and the movable contact 120 come into contact with each other, so that the arc discharge can be prevented while filling the minimum amount of the insulating fluid 132 as much as the first height h1. can annihilate

In addition, the insulating fluid 132 has a second height corresponding to the height between the contact surface 111 where the fixed contact 110 and the movable contact 120 contact and the inner upper surface of the accommodating space 131 of the arc chamber 130 ( h2) may be filled. This is the height at which the contact surface 111, where the fixed contact 110 and the movable contact 120 come into contact, injects the minimum insulating fluid 132, but some contacts are insulated depending on the movement of the vehicle relay 10 or the inclination of the vehicle. Since it is not located inside the fluid 132 and can be exposed to the air inside the accommodating space, it is possible to induce arc discharge not to occur in the air by injecting the insulating fluid 132 as much as the second height h2.

Here, the third height (h3) corresponds to the height of the interior ceiling of the arc chamber 130, and between the second height (h2) and the third height (h3) is a vapor that can store the vaporized gas while the insulating fluid evaporates. A vapor zone may be formed.

In addition, the insulating fluid 132 may be filled to a third height h3 so as to fill the inside of the accommodating space 131 of the arc chamber 130 . This is the height required for the capacity of the insulating fluid 132 the most, but stability is ensured under any circumstances because the contact surface 111 where the fixed contact point 110 and the movable contact point 120 come into contact is located inside the insulating fluid 132. can be increased, and since the injection of the insulating fluid 132 can be injected until the injection of the insulating fluid 132 is stopped without a separate injection quantity check process, an effect of facilitating the injection process can be accompanied.

FIG. 5B is a reference diagram illustrating an enlarged view of an arc extinguishing unit of the vehicle relay shown in FIG. 4 in a plan view.

Referring to FIG. 5B , an insulating fluid 132 is injected into the accommodating space 131 of the arc extinguishing unit 100 of the vehicle relay. In FIG. 5B, the state in which the insulating fluid 132 is injected represents a fixed state based on the horizontal bracket (see FIG. 1B, 410') as shown in FIG. 1B.

When the vehicle relay is laid horizontally and fixed, the insulating fluid 132 may be filled up to the first height H1, which is the uppermost end of the fixed contact point.

5B, the insulating fluid is filled with the insulating fluid 132 at the second height H2 between the first height H1, which is the uppermost end of the fixed contact 110, and the uppermost end H3 of the accommodating space inside the arc chamber 130. will be described as an example. That is, when the insulating fluid 132 is filled with the second height H2 between the first height H1 of the fixed contact point 110 and the third height H3 inside the arc chamber 130, at least the fixed contact point ( 110) is submerged in the insulating fluid 132, so arc discharge can be safely extinguished. Here, when the insulating fluid is filled to the second height H2, a vapor zone capable of storing vaporized gas may be formed while the insulating fluid evaporates.

Of course, the insulating fluid 132 may be filled up to the third height H3 inside the arc chamber 130 .

6A is a reference diagram illustrating a structure in which an insulating fluid circulates in a vehicle relay assembly according to a first embodiment of the present invention.

Referring to FIG. 6A, the vehicle relay assembly according to the first embodiment of the present invention includes a first relay 10 provided on one side, a second relay 10' provided on the other side, and a first relay 10 and a circulation module for cooling and circulating the insulating fluid supplied to the second relay 10'.

Here, the first relay 10 and the second relay 10' will be described as having the same structure as an example.

The arc chamber 130 of the first relay 10 includes a first supply pipe 510 provided on one side and a first discharge pipe 520 provided on the other side. In addition, the arc chamber 130' of the second relay 10' includes a second discharge pipe 520' provided on one side and a second supply pipe 510' provided on the other side.

Each of the supply pipes 510 and 510' and each of the discharge pipes 520 and 520' are disposed on the respective arc chambers 130 and 130' at a set height.

The circulation module includes a tank in which an insulating fluid is stored, a first connector 511 connecting the tank and a relay, a second connector 521 connecting a chiller from the relay, and a chiller. do.

First, an insulating fluid is stored in the tank. The insulating fluid stored in the tank is stored in the tank while being cooled in the chiller to a temperature relatively lower than that of the insulating fluid discharged through the second connection pipe 521.

Therefore, the insulating fluid supplied from the tank to each of the relays 10 and 10' through the first connector 511 is relatively low temperature.

In each of the relays 10 and 10', the insulating fluid absorbing the arc discharge is relatively high-temperature, so it is discharged through the second connector 521 and supplied to the chiller.

In FIG. 6A, the pump is described as being provided on the first connection pipe 511 as an example, and may be provided on the second connection pipe 521 or may be provided on both the connection pipes 511 and 521. . Alternatively, the pump may be provided on a connecting pipe between the chiller and the tank.

In addition, the insulating fluid discharged from the tank may be supplied to the battery module. The insulating fluid supplied to the battery module is also returned to the chiller and circulated to be stored in the tank through a cooling process.

In addition, in the process of circulating the insulating fluid between the tank and each relay (10, 10'), the circulation module pump (P) when the supply of the insulating fluid is not smooth or the supply temperature of the insulating fluid is not maintained within the set range. may be controlled to stop the operation, and the operating state of the circulating system of the insulating fluid or the chiller may be transmitted to the user terminal.

6B is a reference diagram illustrating a structure in which an insulating fluid circulates in a vehicle relay assembly according to a second embodiment of the present invention.

Referring to FIG. 6B, a vehicle relay assembly according to a second embodiment of the present invention includes a first relay 10 provided on one side, a second relay 10' provided on the other side, and a first relay 10 and a circulation module for cooling and circulating the insulating fluid supplied to the second relay 10'.

The circulation module may selectively supply insulating fluid to each of the relays 10 and 10' and the battery module using one pump. Although not shown in the drawings, a 3-way valve may be provided at a branching point from the pump to the relays 10 and 10' or the battery module.

Therefore, since the vehicle relay assembly according to the second embodiment uses one pump, manufacturing cost can be reduced.

In this way, the vehicle relay assembly has a circulation module to easily supply the cooled insulating fluid into the arc chamber, and also to check the circulation state and abnormality of the insulating fluid, so that remote monitoring is possible.

FIG. 7 is a reference diagram illustrating various embodiments in which a circulation module of the vehicle relay shown in FIG. 6 is connected. Hereinafter, the same designation as the above-described configuration denotes the same configuration, and reference numerals are omitted.

7(a), the supply pipe and the discharge pipe may be disposed to face each other in the front and rear directions of the arc chamber.

7(b) , a supply pipe may be disposed in one of the lateral direction and the front direction of the arc chamber, and the discharge pipe may be disposed in the other direction.

In FIG. 7(c) , a supply pipe may be disposed on one of the upper surface and one lateral direction of the arc chamber, and a discharge pipe may be disposed on the other side.

Accordingly, in the embodiments related to FIGS. 7(a) to 7(c), the supply pipe and the discharge pipe may be disposed on different surfaces of the arc chamber.

7(d) , the supply pipe and the discharge pipe may be arranged side by side at the lower end of the solenoid unit to communicate with the arc chamber.

In FIG. 7(e), a supply pipe may be disposed on one side of the arc chamber and a lower end of the solenoid unit, and a discharge pipe may be disposed on the other side.

7(f) , a supply pipe may be disposed in one of the front direction of the arc chamber and the lower end of the solenoid unit, and the discharge pipe may be disposed in the other.

In FIG. 7( g ), a supply pipe may be disposed at one of the upper surface of the arc chamber and the lower end of the solenoid unit, and the discharge pipe may be disposed at the other.

Accordingly, in the embodiment related to FIGS. 7(e) to 7(g), a supply pipe and a discharge pipe may be disposed in the arc chamber and the solenoid part, respectively.

7(h), the supply pipe and the discharge pipe may be arranged side by side in the rear direction of the cover plate.

7(i), the supply pipe and the discharge pipe may be arranged side by side in the upper surface direction of the arc chamber.

7(j), the supply pipe and the discharge pipe may be arranged side by side in the front direction of the arc chamber.

7(k), the supply pipe and the discharge pipe may be arranged side by side in one side direction of the arc chamber.

Accordingly, in the embodiments related to FIGS. 7(i) to 7(k), the supply pipe and the discharge pipe may be disposed on the same side of the arc chamber.

7(l), a supply pipe may be disposed in one of the front direction of the arc chamber and the rear direction of the cover plate, and the discharge pipe may be disposed in the other direction.

In FIG. 7(m), a supply pipe may be disposed in one side of the arc chamber and a rear surface of the cover plate, and a discharge pipe may be disposed in the other.

7(n) , the supply pipe may be disposed in one of the upper surface direction of the arc chamber and the rear surface direction of the cover plate, and the discharge pipe may be disposed in the other direction.

Accordingly, in the embodiments related to FIGS. 7(l) to 7(n), a supply pipe and a discharge pipe may be disposed in the arc chamber and the cover plate, respectively.

Therefore, according to the vehicle relay according to the present invention, by injecting insulating fluid into the accommodating space inside the arc chamber, even if an arc discharge occurs, it can be easily extinguished, and the fixed contact and the movable contact contact or separate the insulating fluid from each other. It is possible to prevent an arc discharge from occurring in the air inside the accommodation space by filling the contact surface height or at least to a higher height so that the contact surface is submerged, and the amount of insulating fluid to be injected into the arc chamber can be selectively adjusted, and the insulating fluid Even if evaporation occurs, the greenhouse effect can be minimized because the global warming potential is maintained below 100, and the temperature stress of the insulating fluid absorbing the arc discharge can be solved because the cooled insulating fluid can be supplied to each relay through the circulation module. There is an effect.

Although the above has been shown and described as specific embodiments to illustrate the technical idea of the present invention, the present invention is not limited to the same configuration and operation as the specific embodiments as described above, and various modifications do not depart from the scope of the present invention. can be carried out within Accordingly, such modifications are to be regarded as falling within the scope of the present invention, which scope is to be determined by the claims set forth below.

10. 10': vehicle relay
100: arc extinguishing unit
110: fixed contact 120: movable contact
130: arc chamber 140: cover plate
150: border seal 160: holder
170: injection hose
200: solenoid part
210: shaft 220: core
230: bobbin 240: coil
250: yoke 260: cylinder seal
300: cap 400: housing

Claims (8)

An arc chamber having an accommodation space formed therein, in which a fixed contact point fixed on one side so as to be at least partially exposed therein, and a movable contact point disposed movably on the other side to be in contact with or spaced apart from the fixed contact point are accommodated;
a solenoid unit that moves the movable contact point of the arc chamber to come into contact with or be separated from the fixed contact point;
a supply pipe supplying insulating fluid to the arc chamber; and
a discharge pipe discharging an insulating fluid inside the arc chamber; Including,
A vehicle relay, characterized in that the insulating fluid in the arc chamber is circulated by the supply pipe and the discharge pipe. The method of claim 1,
The supply pipe and the discharge pipe,
A vehicle relay, characterized in that disposed on opposite sides of the arc chamber or on both sides adjacent to each other. The method of claim 1,
The supply pipe and the discharge pipe,
A vehicle relay, characterized in that arranged side by side on any one side of each side and the upper surface of the arc chamber. The method of claim 1,
The supply pipe and the discharge pipe,
A vehicle relay, characterized in that all of the solenoid portion is disposed. The method of claim 1,
The supply pipe and the discharge pipe,
A vehicle relay, characterized in that each of the arc chamber and the solenoid unit is disposed one by one. The method of claim 1,
Further comprising a cover plate disposed between the arc chamber and the solenoid unit,
The supply pipe and the discharge pipe,
The vehicle relay, characterized in that the supply pipe is disposed in one of the arc chamber, the solenoid part and the cover plate, and the discharge pipe is disposed in the other one. An arc chamber in which a fixed contact fixed in the inner accommodating space and a movable contact arranged to be movable and in contact with or separated from the fixed contact are accommodated, and the movable contact of the arc chamber is moved to come into contact with or be separated from the fixed contact. a first vehicular relay including a solenoid unit that operates, a first supply pipe for supplying insulating fluid to the arc chamber, and a first discharge pipe for discharging insulating fluid inside the arc chamber;
An arc chamber in which a fixed contact fixed in the inner accommodating space and a movable contact arranged to be movable and in contact with or separated from the fixed contact are accommodated, and the movable contact of the arc chamber is moved to come into contact with or be separated from the fixed contact. a second vehicular relay including a solenoid unit that operates, a second supply pipe for supplying insulating fluid to the arc chamber, and a second discharge pipe for discharging insulating fluid inside the arc chamber; and
a circulation module connecting the first vehicle relay and the second vehicle relay to cool and circulate the insulating fluid inside each arc chamber;
Vehicle relay assembly comprising a. The method of claim 7,
The circulation module,
A tank for storing an insulating fluid;
A first connection pipe connecting the insulating fluid from the tank to the first supply pipe or the second supply pipe;
A second connection pipe connecting the first discharge pipe and the second discharge pipe;
A pump provided on the first connection pipe and providing supply pressure of the insulating fluid;
A vehicle relay assembly comprising a chiller provided on the second connector and cooling the discharged insulating fluid.

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