KR102302046B1 - Integrated coolant reservoir tank for cooling the motor and battery side of hybrid and electric vehicles - Google Patents

Abstract

The present invention relates to an integrated coolant reservoir tank for cooling a motor side and a battery side of hybrid and electric vehicles, and more specifically, to an integrated coolant reservoir tank for cooling a motor side and a battery side of hybrid and electric vehicles, wherein an upper tank and a lower tank are fused into one body and coolant can be injected while simultaneously being supplied through a separation wall installed in the middle to increase the speed of injection and reducing costs, and a baffle is installed to mitigate undulation to facilitate the removal of generated air while driving. The coolant reservoir tank in accordance with the present invention, which has a filler neck (85) installed thereon, and includes an upper tank (20) having an upper storage space (28) and a lower discharge hole (36) on a lower tank (30) having a lower storage space (38), comprises: an upper tank (20) connected to the filler neck (85), having an upper cylinder (21) with an upper through hole (22) formed thereon, and having an upper separation wall (23) divided with respect to the upper cylinder (21); a lower tank (30) having a lower through hole (32) formed on a lower cylinder (31), which is bonded to the upper cylinder (21) by a thermal fusion method, and having a lower separation wall (33) divided with respect to the lower cylinder (31); and a baffle (70) placed between the upper tank (20) and the lower tank (30) and bonded by a thermal fusion method.

Description

Integrated coolant reservoir tank for cooling the motor and battery side of hybrid and electric vehicles

The present invention relates to an integrated coolant reservoir tank for cooling the motor side and the battery side of hybrid and electric vehicles. It relates to an integrated reservoir tank for cooling water for motor and battery side cooling of hybrid and electric vehicles, which allows water to be injected to speed up the injection speed, reduce cost, and reduce sloshing by installing baffles so that the air generated during driving can be easily discharged.

In general, a hybrid vehicle is a word that means "hybrid" or "hybrid", and refers to a car that uses two power sources: a gasoline engine and an electric motor, and a diesel engine and an electric motor. It is also called an eco-car because it can improve the air and surrounding environment in big cities.

The hybrid vehicle uses an electric motor when starting, and when a certain speed is reached, the engine is automatically operated, and when the brake is applied, the electric motor acts as a generator, converts unnecessary kinetic energy into electric energy and stores it in the battery, and then stores it in the battery again. Therefore, energy efficiency is high, both the engine and the electric motor are stopped when the vehicle is stopped, so fuel efficiency is very high because there is no fuel wasted due to idling, and there is no engine noise when starting and driving at low speed.

In addition, an electric vehicle is a vehicle in which driving energy is obtained from electric energy rather than from the combustion of fossil fuels like a conventional vehicle. It is the cheapest, especially since it does not use any fossil fuels, so it is the most eco-friendly, has no engine noise, less vibration, and has a relatively long vehicle lifespan.

In the hybrid and electric vehicles, the electric parts including the motor and the battery generate heat during operation, and in order to maintain the input/output characteristics of the parts in the best state, it is necessary to install a cooling system that suppresses the temperature rise of the parts.

In particular, in the case of a battery, it is necessary to maintain an appropriate temperature in order to maintain the best overall charging and discharging efficiency.

Accordingly, in hybrid and electric vehicles, a cooling device is installed, that is, a reservoir tank for storing coolant for cooling electric parts and a reservoir tank for storing coolant for cooling a battery are installed in the engine room, respectively.

However, when two reservoir tanks are installed as in the prior art, it is difficult to secure a space for installing the reservoir tank in a narrow engine room, and the user has to put coolant in each reservoir tank, so workability is poor.

In addition, if there are two reservoir tanks, there is a problem in that the cost of parts increases because two removable stoppers are also required.

[Patent Document 1] Patent Registration No. 0799607 (Registered on Jan. 24, 2008) [Patent Document 2] Patent Registration No. 1853823 (Registered on April 25, 2018) [Patent Document 3] Patent Registration No. 1036105 (Registered on May 13, 2011) [Patent Document 4] Patent Registration No. 0921091 (Registered on Oct. 01, 2009)

Therefore, the object of the present invention, which was devised in order to solve the conventional drawbacks, is to implement a single reservoir by combining the reservoirs that were separate from the motor side and the battery side.

Another solution of the present invention is to speed up the inline coolant injection work speed by locating a partition wall in the center of the water spout so that both the left and right sides can be poured at the same time, and to separate the two water pumps (EWP) to circulate and reduce the manufacturing cost. aim to

Another solution to the present invention is to alleviate the sloshing of the coolant in the empty space in the tank when the internal coolant is circulated, and to prevent the baffle from floating by joining it using a thermal fusion method so that the air generated during driving can easily escape. The purpose.

The present invention relates to a coolant reservoir tank having a filler neck installed and a lower outlet in an upper tank having an upper storage space and a lower tank having a lower storage space,

an upper tank connected to the filler neck and having an upper cylinder having an upper through-hole formed therein and having an upper dividing wall divided around the upper cylinder;

a lower tank in which a lower through-hole is formed in a lower cylinder joined to the upper cylinder by a thermal fusion method and a lower partition wall divided around the lower cylinder is formed;

It is characterized in that a baffle is installed between the upper tank and the lower tank and joined by a thermal fusion method.

The present invention provides the effect of installing the reservoir in a narrow engine room by combining the reservoirs, which were separate on the motor side and the battery side, into one reservoir by integrating the upper tank and the lower tank integrally by thermal fusion.

The present invention has a partition wall located in the center of the water spout so that the injected cooling water can be injected simultaneously on the left and right sides through the through hole of the cylinder, thereby speeding up the inline cooling water injection operation speed and integrating a single filler tech with a reservoir integrated type. It is to provide the effect of significantly reducing the manufacturing cost by separating the two water pumps (EWP) so that circulation is possible.

The present invention alleviates the occurrence of sloshing of the coolant in the empty space of the tank when circulating the internal coolant, and joins the baffle using a heat-sealing method so that the air generated during driving can easily escape. This is to provide the effect of enabling stable operation while preventing the baffle from being injured by fixing it from both sides.

1 is a cross-sectional perspective view showing the inside showing a preferred embodiment of the present invention;
2 is a front view showing an installation state of the present invention;
3 is a front cross-sectional view showing a cooling water supply state of the present invention;
4 is a front view showing a position in which the reservoir of the present invention is fixed;
5 is a cross-sectional perspective view showing a state in which the reservoir of the present invention is fixed;
6 is a perspective view showing a thermal fusion state for the upper and lower cylinders of the present invention;
7 is an exploded perspective view of the main part of the present invention;
8 is a bottom perspective view of the upper tank of the present invention;
9 is a plan view of the lower tank of the present invention;
10 is a perspective view of the main part of the upper and lower tanks of the present invention in a state in which the baffle is fixed;

With respect to the embodiments of the present invention published in the text, specific structural or functional descriptions are only exemplified for the purpose of describing the embodiments of the present invention, and the embodiments of the present invention may be embodied in various forms. It should not be construed as being limited to the embodiments described in .

Since the present invention can have various changes and can have various forms, specific embodiments are illustrated in the drawings and described in the text. However, this is not intended to limit the present invention to the specific disclosed form, it should be understood to include all modifications, equivalents and substitutes included in the spirit and scope of the present invention. In describing each figure, similar reference numerals are used for components.

Terms such as first, second, etc. may be used to describe various elements, but the elements should not be limited by the terms. The above terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, a first component may be referred to as a second component, and similarly, a second component may also be referred to as a first component.

When a component is referred to as being “connected” or “installed” with another component, it may be directly connected to or installed on the other component, but it is understood that other components may exist in between. it should be

The terms used in the present application are only used to describe specific embodiments, and are not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise. In this application, terms such as "comprises" or "have" are intended to designate the presence of the specified feature, number, step, action, component, part, or a combination thereof, but one or more other It is to be understood that this does not preclude the possibility of the presence or addition of features or numbers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related art, and should not be interpreted in an ideal or excessively formal meaning unless explicitly defined in the present application. does not

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

Fig. 1 is a cross-sectional perspective view showing the inside of a preferred embodiment of the present invention, Fig. 2 is a front view showing the installation state of the present invention, and Fig. 3 is a front cross-sectional view showing the cooling water supply state of the present invention.

In the present invention, in configuring the integrated coolant reservoir tank for cooling the motor side and the battery side of hybrid and electric vehicles, ports for discharging air are provided at both ends of the reservoir tank 10, and a removable pressure cap 80 is installed. An upper tank 20 having an upper storage space 28 and a filler neck 85 for supplying cooling water connected therein by a cylindrical upper cylinder 21, and a lower cylinder integrally fusion-bonded with the upper cylinder 21 ( 31) is formed and the lower tank 30 having a lower storage space 38 in which the lower outlets 26 are installed on both sides, and the upper tank 20 and the lower tank 30 are joined by a thermal fusion method The baffle 70 is installed so that it is fixed so that it is integrated with the cooling water to alleviate the occurrence of sloshing during circulation of the coolant and to allow the air generated during driving to be easily discharged.

The upper tank 20 bisects the upper storage space 28 at the outside of the central portion of the upper cylinder 21 , and the lower tank 30 includes the lower storage space 28 at the center and outside of the lower cylinder 31 . ) and install it so that cooling water can be supplied at the same time.

4 is a front view showing a position where the reservoir of the present invention is fixed, FIG. 5 is a cross-sectional perspective view showing a state in which the reservoir of the present invention is fixed, and FIG. 6 is a perspective view showing a thermal fusion state for the upper and lower cylinders of the present invention is about

The reservoir tank 10 is coupled so that the upper tank 20 and the lower tank 30 are integrally formed by a thermal fusion method, and the first and third fastening parts 42 and 62 are located on both sides of the lower tank 30, , the second fastening part 51 is located at the lower center of the center and is to be coupled to each other.

The first fastening part 42 is fixed to the engine room at the first fixing point 41 through the first bracket 40 , and the third fastening part 62 is the third fixed through the third bracket 60 . It is fixed to the engine room at the point 61 , and is fixed to the engine room at the second fixing point 52 through the second bracket 50 at the second fastening part 51 .

The upper through-holes 22 are formed on both sides of the upper cylinder 21 of the upper body 20 to supply cooling water, and the upper through-holes 32 are formed on both sides of the lower cylinder 31 of the lower body 30 to provide cooling water. is supplied, and the upper cylinder 21 and the lower cylinder 31 are joined together by a thermal fusion method at the part where the upper and lower sides meet and are fixed integrally.

7 is an exploded perspective view of the main part of the present invention, FIG. 8 is a bottom perspective view of the upper tank of the present invention, FIG. 9 is a plan view of the lower tank of the present invention, and FIG. 10 is the upper and lower tanks of the present invention shows a perspective view of the main part of the state in which the baffle is fixed.

A baffle 70 is supplied between the upper body 20 and the lower body 30 to be joined by a thermal fusion method, and the upper body 20 has an upper partition wall 23 centered on the upper cylinder 21 in the center. ), and the baffle fixing pin 24 protrudes from the inner surface of the upper storage space 28 at regular intervals to press and fix the supplied baffle 70 from the upper side.

The lower body 30 is divided into two parts through the lower partition wall 33 with the center lower cylinder 31 as the center, and the lower storage space 38 is baffled at regular intervals and the inner diameter of the lower cylinder 30. The support part 34 protrudes to support and fix the baffle 70 from the lower side.

After supplying the baffle 70 between the upper tank 20 and the lower tank 30 , the integrated coolant reservoir tank 10 for cooling the motor side and the battery side of the hybrid and electric vehicle of the present invention configured as described above is Since the upper cylinder 21 and the lower cylinder 31 are fused and fixed to become one-piece according to the bonding method using the thermal fusion method, the reservoirs that were separate from the motor side and the battery side are combined to form a single reservoir and installed in a narrow engine room. It is intended to be used as an integrated type while occupying less space in the engine room.

When the reservoir tank 10 is installed in the engine room of a vehicle, the first, second, and third brackets 40, 50, 60 are attached to the first, second, and third fastening parts 42 on both sides of the lower tank 30 and at the lower center of the lower tank. , 51, 62) and to be fixed at the first, second, and third fixing points (41, 52, 61) to simply and firmly maintain the installation state.

When coolant is injected with the reservoir tank 10 installed in the engine room and the pressure cap 80 is removed, one filler neck 85 can be integrated and water can be poured, and the coolant injected through the filler neck 85 is is injected through the upper cylinder 21, some is supplied to the upper storage space 28 through the upper through-hole 22, and some is moved to the lower cylinder 31, and the lower storage space 38 in the lower through-hole 32 ) is supplied and filled, so it is separated from the upper cylinder 21 and the lower cylinder 31 through the upper dividing wall 23 and the lower dividing wall 33, but the upper through-hole 22 and the lower through-hole 32 ) can supply cooling water at the same time, so the left and right sides can be injected at the same time to speed up the in-line coolant injection operation, and as a reservoir integrated type, one fillertech 85 is integrated and watered through the lower part through two water pumps (EWP). It is separated so that circulation is possible at the outlet 36, thereby greatly reducing the manufacturing cost.

In the present invention, sloshing of the coolant may occur in the upper storage space 28 of the upper tank 20 and the lower storage space 38 of the lower tank 30 when the internal coolant is circulated. Since it is installed between the tank 20 and the lower tank 30, sloshing is minimized to prevent shock to the vehicle, and air is generated when the vehicle is running, so that it is impossible to prevent the complete movement of the coolant, so the baffle 70 Since the silver is joined between the upper and lower tanks 20 and 30 and the upper and lower cylinders 21 and 31 by a thermal fusion method, it is fixed in one piece so as to be in a stable and solid state, and the baffle 70 is the lower tank. When placed on the upper side of the 30, it is safely supported by the baffle support part 34 formed in the lower cylinder 31 at a regular interval within the lower storage space 38, and the upper baffle 20 is joined by the heat-sealing method. Since the fixing pin 24 presses and supports the baffle 70 at regular intervals, the baffle 70 sways through the coolant through the shape of supporting and fixing from both sides, and the air generated during driving can easily escape. This enables stable operation.

In the present invention, the upper tank and the lower tank are integrally fused, and the supply of cooling water can be poured at the same time while the supply is separated through a dividing wall installed in the center, thereby speeding up the injection speed on both sides, reducing the cost, and joining the baffle by thermal fusion method. The purpose of this invention is to provide a very useful invention in which the air generated during driving can be easily released by alleviating the sloshing motion.

10: reservoir tank 20: upper tank
21: upper cylinder 22: upper through hole
23: upper dividing wall 24: baffle fixing pin
26: thermal fusion joint 28: upper storage space
30: lower tank 31: lower cylinder
32: lower through hole 33: lower partition wall
34: baffle support 36: lower outlet
38: lower storage space 40: first bracket
41: first fixing point 42: first fastening part
50: second bracket 51: second fastening part
52: second fixing point 60: third bracket
61: third fixing point 62: third fastening part
70: baffle 80: pressure cap
85: filler neck

Claims (5)

In the coolant reservoir tank having a filler neck (85) installed and a lower outlet (36) in an upper tank (20) having an upper storage space (28) and a lower tank (30) having a lower storage space (38),
An upper tank (20) connected to the filler neck (85) and having an upper cylinder (21) having an upper through-hole (22) formed therein and having an upper dividing wall (23) divided around the upper cylinder (21). Wow,
A lower tank in which a lower through-hole 32 is formed in the lower cylinder 31 joined to the upper cylinder 21 by a thermal fusion method, and a lower partition wall 33 divided around the lower cylinder 31 is formed. (30) and
An integrated coolant reservoir tank for cooling the motor side and the battery side of hybrid and electric vehicles, characterized in that a baffle (70) positioned between the upper tank (20) and the lower tank (30) and joined by a thermal fusion method is installed.
The method of claim 1,
The upper tank 20 is connected to the filler neck 85 and has an upper partition wall 23 divided around an upper cylinder 21 in which an upper through hole 22 is formed, and an upper storage space 28 is formed. A plurality of baffle fixing pins (24) protrude along the inside of the hybrid and electric vehicle, characterized in that the baffle (70) is fixed from the upper side, the integrated coolant reservoir tank for cooling the motor side and battery side.
The method of claim 1,
The lower tank 30 is formed with a lower partition wall 33 divided around a lower cylinder 31 in which a lower through hole 32 is formed, and the interior of the lower storage space 38 and the lower cylinder 31 . An integrated coolant reservoir tank for cooling the motor side and the battery side of hybrid and electric vehicles, characterized in that the baffle support part 34 is installed to fix the baffle 70 from the lower side.
The method of claim 1,
The lower tank 30 has first and third fastening parts 42 and 62 formed on both sides to connect the first and third brackets 40 and 60, and a second fastening part 51 is formed on the lower side, 2 brackets 50 are connected, and fixed to the engine room at the first, second, and third fixing points (41, 52, 61) of the first, second, and third brackets (40, 50, 60) Integrated coolant reservoir tank for motor side and battery side cooling of hybrid and electric vehicles.
The method of claim 1,
When the baffle 70 is joined between the upper tank 20 and the lower tank 30 by a thermal fusion method, a baffle fixing pin 24 is fixed to the upper side by pressing the baffle, and a baffle support part 34 is located at the lower side of the baffle. An integrated coolant reservoir tank for cooling the motor side and the battery side of hybrid and electric vehicles, characterized in that the baffle is supported and fixed.

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