KR20100033666A - Laminated pathway type heat exchanger of oil - Google Patents

Abstract

PURPOSE: A laminate flow path type oil heat exchanger is provided to smoothly supply oil and refrigerant according to the capacity of a pump using a bypass plate and flow path plate. CONSTITUTION: A laminate flow path type oil heat exchanger comprises a pair of flow path plates(10). A pair of flow path plates is stacked up turn by turn. A flow path is formed inside and outside the flow path plate. The heat exchange is performed by passing oil or refrigerant in the flow path. A bypass plate(20) is installed on top of the flow path plate or on the one side of the laminated lowest bottom.

Description

Laminated Pathway Type Heat Exchanger of Oil

The present invention relates to a laminated flow path oil heat exchanger, and more particularly, to reduce frictional resistance between oil and refrigerant generated in a constant capacity and a flow path, and to further include a bypass plate in addition to the laminated flow path unit plate. The present invention relates to a multi-layer oil type heat exchanger that enables the supply of oil and refrigerant to be smoothly controlled according to a pump capacity for circulation of oil and refrigerant.

In general, various kinds of oils in automobiles have a lubrication function to smoothly operate the corresponding parts, as well as prevent wear and abrasion. For example, the oil used in the transmission transmits power in the torque converter of the transmission, facilitates the rotation of gears or bearings, and facilitates the operation of various hydraulic mechanisms such as valves, clutches and brakes. Cool the sliding parts.

At this time, the oil is configured to be supplied to various valve mechanisms and hydraulic components by a pump from the oil pan connected to the transmission case lower side.

As such, it is important to maintain a constant temperature because automotive oil, which prevents overheating and lubrication between parts, affects performance due to the viscosity of temperature. For example, when the temperature of the oil is increased, the oil level is increased, and when the oil level is increased, overflow occurs, such as an excessive amount of oil is ejected, so that the operation of the transmission is not smooth.

In the case of engine oil, the temperature should not exceed about 90 ℃, but since the oil temperature increases from the operation of each lubrication part, cylinder, and piston, the lubrication performance decreases with viscosity, so cooling of oil is necessary. do.

Cooling for these oils depends on the type of engine. In the case of gasoline engines, the heat dissipation performance of the oil pan is possible only. However, in the diesel engine, the heat dissipation performance of the oil pan is not sufficient, so a separate oil cooler is installed to cool the high temperature oil or It is configured to heat the oil.

Thus, as the prior art of the type disclosed in order to maintain a constant temperature of various oils in automobiles, Republic of Korea Utility Model Publication No. 269279 (2002.03.11.) And 329472 (2003.09.29.) Are mentioned.

Conventional Utility Model Publication No. 269279 is an improved structure of an oil cooler that can improve the heat exchange performance from the outside air by forming a honeycomb space by alternately joining the upper and lower plates, each of which has a wave shaped wave portion, at a predetermined interval. It is about.

Conventional Utility Model Publication No. 329472 forms a burring protrusion protruding outward from one of the cup grooves of the tube plate for guiding the movement of oil to fit the cup groove portion of the other tube plate overlapped during assembly, The present invention relates to an oil cooler assembling structure of an automobile which can be assembled with a caulking locking groove of another tube plate so as to be assembled with the caulking protrusion formed on the outside of the plate, thereby improving assembling and reducing assembling defects.

However, the conventional registered utility model Nos. 269279 and 329472 are oil or refrigerant flow paths, and are composed only of inner pins formed between honeycomb-shaped space portions or tube plates that are alternately joined up and down, thereby circulating oil or refrigerant. If the capacity of the pump is not constant, there is a problem that a difference occurs in the flow rate of the oil and refrigerant circulated according to the capacity of the pump.

Actually, since the capacity of the pump for circulation of oil or refrigerant varies depending on the vehicle type, the capacity difference of the circulation pump eventually leads to the performance difference of the oil cooler.

In order to resolve the performance difference, there may be a method of replacing the capacity of the circulating pump with a predetermined oil cooler performance or conversely developing and applying a structure of an oil cooler suitable for the capacity of the circulating pump. All of them have a problem of low practicality because the economic loss cost is large.

In addition, the prior art Utility Model Publication No. 269279 and 329472 are both made of a uniform height of the flow path for the oil or refrigerant flow, it is not possible to reduce the frictional resistance between the oil and refrigerant and the flow path, separate inner pin and out Since the fin is formed, the material cost can not be reduced.

The present invention has been made in view of the problems of the prior art as described above, and provides a laminated flow path type oil heat exchanger that can smoothly control the supply of oil and refrigerant in accordance with the pump capacity for circulating the internal oil and refrigerant of the vehicle. The purpose is to do that.

Another object of the present invention is to adopt a structure that can reduce the friction resistance between the oil and the refrigerant and the flow path generated within a certain capacity, the laminated flow path oil which can improve the heat exchange performance as well as the circulation efficiency of the oil and refrigerant. An object of the present invention is to provide a heat exchanger.

Another object of the present invention is to simplify the handling during assembly or assembly between the plates forming the flow path, as well as to reduce the defects in the assembly process, so that the flow between the layers, that is, the flow between the oil and the refrigerant during installation Another object of the present invention is to provide a laminated flow path oil heat exchanger capable of maximizing heat exchange efficiency between the two.

Laminated flow path oil heat exchanger proposed by the present invention is a plurality of flow path unit plate of the same type by bonding a plurality of stacking, each pair of the flow path consisting of the inside and outside of the flow path unit plate can be heat exchanged while the oil or refrigerant flows It is installed so that, at least one of the upper end or the lower end of the flow path unit plate to be laminated is configured to include a bypass plate.

The flow path unit plate is a plate formed to face the inner and outer sides of the convex, the joint flange portion formed along each edge of the flow path unit plate and bonded to each other, and a pair of two perforated on the flow path unit plate In the form of a hole, a connecting porter portion corresponding to the inlet and outlet pipes of the oil or refrigerant, and a pair of perforated projections protruded or recessed in opposition to the other pair, and two holes of each pair of the connection porter portions It is formed between and formed in the same diagonal shape in the same direction to form a bend to the inner and outer surfaces of the flow path unit plate and comprises a flow guide for inducing the flow of the oil or refrigerant.

The bypass plate may include a through part corresponding to a connection porter part of the flow path unit plate and a pass path part for linking the through part to be paired with each other.

The flow path unit plate may be formed to reduce the frictional resistance between the flowing oil or refrigerant and the flow path by forming the height of the protruding end of the flow path guide portion projecting to the inner surface of the pair to be joined higher or lower than the neighboring sides, or the joining plan. Each of the branches may have a flange protrusion and a flange cutting groove at both ends corresponding to each other to facilitate the direction setting when the flow path unit plate is joined.

In addition, the flow path unit plate has a protrusion formed from an inner surface to an outer surface, and includes at least two stacking beads formed on at least two of the inner edges of the outer surface to be coupled to each other in the case of stacking the flow path unit plates joined in pairs. It is also possible in the form of.

In addition, the flow path unit plate may have a protrusion formed from an inner surface to an outer surface, and may include a reinforcement protrusion that contacts each other during stacking to support the pressure according to the load of the oil and the refrigerant.

According to the laminated flow path oil heat exchanger according to the present invention, since the supply of oil and refrigerant can be automatically adjusted according to the pump capacity for circulating the oil and refrigerant of the vehicle, regardless of the circulation pump having different capacities according to the vehicle type As well as the installation convenience that can be applied to improve the operating performance of the vehicle.

In addition, according to the laminated flow path oil heat exchanger according to the present invention, the height of the protruding end of the flow path guide portion is formed higher or lower than the neighboring both sides while reducing the frictional resistance between the oil and the refrigerant due to the internal space of the flow path, the oil And an effect of increasing the heat exchange performance together with the circulation efficiency of the refrigerant.

Furthermore, according to the laminated flow path oil heat exchanger according to the present invention, it is possible to solve the design constraints to consider the arrangement with other components, increase the space utilization, and make the arrangement of the components at the right place for installation and repair. Improve workability of the city.

According to the laminated flow path oil heat exchanger according to the present invention, while simplifying the assembly or handling during assembly between the plates forming the flow path, to reduce the defects in the assembly process, the flow between the layers, that is, the flow between the oil and the refrigerant during installation It is opposite to raise heat exchange efficiency between both.

Hereinafter will be described in detail with reference to the drawings corresponding to an embodiment of the laminated flow path oil heat exchanger according to the present invention.

First, as shown in Figs. 1 to 8, the laminated flow path oil heat exchanger according to the present invention is formed by joining a pair of flow path unit plates 10 of the same type and stacking a plurality of flow path unit plates. 10) For each of the flow paths 40 formed inside and outside is made possible to exchange heat while the oil or refrigerant flows.

In addition, the bypass plate 20 is configured to include at least one of the upper end or the lower end of the flow path unit plate 10 that is stacked, that is, the inner side of the two contact plate 30.

The bypass plate 20 is for smoothly supplying the oil or the refrigerant regardless of the capacity of the pump for circulation of the oil or the refrigerant, and the plurality of flow path unit plates 10 as shown in FIGS. 5 to 8, the top end of the plurality of flow path unit plates 10, as well as the bottom end, that is, also provided in a predetermined cover plate 30 formed on the lower end, as shown in FIG. It can be carried out. Preferably, the form as shown in Figs.

In this case, the bypass plate 20 provided in the lowermost end of the flow path unit plate 10, that is, the lower side cover plate 30 is arranged as shown in FIG. To serve as a predetermined path for the oil or refrigerant flowing along with the reinforcing role.

As shown in FIG. 9, the flow path unit plate 10 is a plate formed by opposing bending of the inner and outer surfaces, and includes a joining flange part 11, a connection porter part 12, and a flow path guide part 13. do.

The joining flange portion 11 is formed in a predetermined wing shape formed along each edge of the flow path unit plate 10 so as to be brazed in a state in which the joining flanges face each other.

The connection porter part 12 is formed in the form of two pairs of holes to be perforated on the flow path unit plate 10 so as to correspond to the inlet pipe 1 and the outlet pipe 2 of the oil or refrigerant, respectively, The pair includes a perforated end 12a that protrudes or recesses in opposition to the other pair.

Here, the pair refers to two holes corresponding to or associated with each of the inlet pipe 1 and the outlet pipe 2 of the oil or refrigerant.

The perforated end 12a of the oppositely protruding or recessed shape is provided for separating and inflowing and discharging oil or refrigerant into the respective flow paths 40 formed inside and outside the plurality of flow path unit plates 10. will be. That is, by separating the flow of oil and refrigerant for each layer, the flow of the oil and refrigerant in the cross-section as shown in Figures 2 to 4 or 6 to 8 to implement a sandwich form between each other to increase the heat exchange efficiency.

In the accompanying drawings, the connection porter part 12 shows only a shape in which holes corresponding to each pair are arranged in parallel to each other, but are alternately arranged in diagonal directions to each other so that the flow of the oil and refrigerant forms a diagonally opposite flow. It can also be implemented in the form which can install the pipe 1 and the outflow pipe 2. As shown in FIG.

The flow path guide part 13 is formed between two pairs of holes of the connection porter part 12, and has a diagonal shape in the same direction to form a predetermined bend on the inner and outer surfaces of the flow path unit plate 10. It serves to induce the flow of the oil or refrigerant.

As shown in FIG. 9 or FIG. 10, the flow path guide part 13 crosses each other with upper and lower shapes that form a bend when the pair of flow path unit plates 10 are joined to each other. The flow of the oil and the refrigerant flowing along the) is induced to flow in opposite directions such as orthogonal counterflow or diagonal counterflow.

In addition, the flow path guide part 13 forms a predetermined curvature on the inner and outer surfaces of the flow path unit plate 10, thereby increasing the section for heat exchange between the oil and the coolant, as well as increasing the surface area of the oil or the coolant. By widening, ultimately, the heat exchange efficiency is increased.

The bypass plate 20 is for automatically adjusting the heat exchange flow rate of the oil or the refrigerant due to the capacity of the circulation pump according to the vehicle type, the through portion corresponding to the connection porter portion 12 of the flow path unit plate 10 And a pass path part 22 for linkage between the through parts 21 which are paired with each other.

The path path part 22 is a long path path 22a formed in a plurality of shapes, such as a shape inserted into the lowermost end of the flow path unit plate 10, that is, the lower cover plate 30, as shown in FIG. 5. Oil) or refrigerant including a connection path (22b) for linkage between the paths (22a), or the uppermost of the flow path unit plate (10), that is, the upper surface of the cover plate (30). It can be implemented in various ways, such as to increase the volume of the pass path.

The flow path unit plate 10 is a pair of inner surfaces that are joined, that is, the oil flows by forming a height higher or lower than the neighboring sides of the protruding end 13a of the flow path guide part 13 which protrudes inwardly in a bonded state. Alternatively, the friction resistance between the refrigerant and the flow path 40 may be reduced.

As described above, in the case of forming at least two heights of the protruding end 13a of the flow guide 13, the plurality of protruding ends 13a do not contact each other uniformly at the time of joining, but the relatively high protruding end 13a is The protruding end 13a, which is brought into contact with each other and is relatively low, forms a predetermined flow path 40 while being spaced apart from each other. Therefore, the frictional resistance between the corresponding flow path 40 surface and the oil or the refrigerant is also relatively reduced. 2 to 4 or 6 to 8 it can be confirmed the shape of the above-described flow path (40).

In addition, in the case of the flow path unit plate 10, as shown in FIG. 9, a predetermined flange protrusion end 11a and a flange cutting groove 11b for setting the direction at the time of joining may be provided.

When the flange protrusion end 11a and the flange cutting groove 11b are respectively joined to the pair of flow path unit plates 10, the flange protrusion end 11a and the flange cutting groove 11b are provided at both ends of the joint flange portions 11 corresponding to each other. This prevents mass production of defective products, such as preventing them in advance.

In addition, the flow path unit plate 10 may be formed in such a manner as to hold a position between the outer surfaces of the flow path unit plate 10 that are in contact with each other by including a predetermined stacking beads 14 and prevent slippage.

Here, the laminated beads 14 is formed in the form of a protrusion formed from the inner surface of the flow path unit plate 10 to the outer surface, formed in at least two places of the inner edge of the outer surface, the flow path unit plate bonded in a pair In the stacking of (10) it is made to be coupled to the male and female.

For example, if the peak ends of one of the protrusions is formed in a protruding form, the peak ends of the other protrusions may include a form in which a male and female coupling is possible, including a predetermined depression.

In addition, the flow path unit plate 10 may be formed in a form including a reinforcement protrusion 15 formed of another protrusion formed from an inner surface to an outer surface.

The reinforcement protrusion 15 serves to reinforce the internal pressure load of the present invention as a structure for dispersing and supporting the pressure according to the load of the oil and the refrigerant in contact with each other when the flow path unit plate 10 is stacked. .

Next, the operation relationship of the laminated flow path oil heat exchanger according to the present invention configured as described above will be briefly described with reference to the drawings.

First, the present invention bonds the joint flange portions 11 of the pair of flow path unit plates 10 as shown in FIG. 9, so that oil or refrigerant flowing along the joined inner flow path 40 is not leaked. At this time, the inner flow path 40 is formed in the form of abutting the protruding end (13a) of the relatively high flow path guide portion 13 can reduce the frictional resistance between the surface of the flow path 40 and oil or refrigerant during operation.

When the flange protrusions 11a and the flange cutting grooves 11b provided at both ends of the joining flange portions 11 of the flow path unit plate 10 respectively join the flow path unit plate 10 in pairs, The ability to discern the direction of joining prevents faulty joining in advance, while helping to complete the joining process quickly.

Subsequently, a plurality of the flow path unit plates 10 joined in a pair are stacked, and an outer surface of the flow path unit plates 10 abutting each other is also joined along the circumference thereof. That is, another flow path 40 is formed on the outer surface between the plurality of flow path unit plates 10 stacked so that oil or refrigerant flows.

At this time, the stacking beads 14 of the flow path unit plate 10 are coupled to each other by male and female to hold the stacking position between the pair of flow path unit plates 10, as well as to prevent slipping.

In addition, the reinforcing protrusion 15 is in contact with the outer surface of the plurality of the flow path unit plate 10 is laminated, while dispersing the pressure according to the load of the oil and refrigerant while supporting and reinforces the bearing force against the load due to its internal pressure Done.

In this way, a predetermined bypass plate 20 is disposed on at least one of end portions of both outer surfaces of the flow path unit plate 10 that are stacked in a plurality, and a predetermined cover plate is further provided on the outer side of the bypass plate 20. It comprises 30.

Naturally, the cover plate 30 may include a through hole for linking the predetermined port form or the connection porter part 12 of the flow path unit plate 10 and the through part 21 of the bypass plate 20. Do.

The through holes of the cover plate 30 are formed in pairs similarly to the through part 21 of the bypass plate 20 and the connecting port part 12 of the flow path unit plate 10. Through the inlet pipe (1) and outlet pipe (2) of the oil or refrigerant is connected.

The oil or refrigerant inlet pipe (1) and outlet pipe (2) can be carried out in various ways depending on the installation, respectively, as shown in Figures 1 to 8, installed so that the flow of the oil and the refrigerant is opposed The shape is preferable in view of relatively high heat exchange efficiency.

For example, the arrangement of the inflow pipe 1 and the outflow pipe 2 of the oil and the arrangement of the inflow pipe 1 and the outflow pipe 2 of the refrigerant may be opposite to each other so that the oil may be disposed in the flow path unit plate 10. If the flow in one direction along the flow path guide portion 13 on the flow path 40 made of one of the inner surface or the outer surface, the refrigerant flow guide on the flow path 40 made of the other of the inner surface or the outer surface of the flow path unit plate 10 Along with the portion 13 may be a form to flow in the direction opposite to the flow direction of the oil.

At this time, the inlet and the outlet of each layer flow path 40 through which oil and refrigerant flow are opened and closed by the boring end 12a of the connection porter part 12 so that the flow path 40 for the oil and refrigerant is separated into a diaphragm. do.

That is, as shown in FIG. 2 or FIG. 6, the perforated end 12a recessed inward on the flow path unit plate 10 is formed by joining a pair to form an outer surface between the flow path unit plates 10 stacked in plurality. While allowing the inlet and the outlet of 40 to be communicated with each other, the passage unit plate 10 which is joined to a pair of the perforated ends 12a protruding outward from the passage unit plate 10 as shown in FIG. 3 or 7. The inlet and the outlet of the flow passage 40 formed on the inner surface of the liver can be communicated.

Here, the flow path guide part 13 forms a predetermined curvature on the inner and outer surfaces of the flow path unit plate 10 to increase the heat exchange interval between the oil and the refrigerant flowing through the flow path 40 for each layer, By increasing the heat exchange surface area of the refrigerant, it serves to increase the heat exchange efficiency of each other.

The bypass plate 20 bypasses the flow rate of the oil or refrigerant through the path path 22, that is, the path 22a and the connection path 22b according to the capacity of the pump for circulation of the oil or the refrigerant. By adjusting the circulation automatically, the bypass plate 20 provided at the lower side of the flow path unit plate 10 serves to reinforce the support for the pressure load of the oil and the refrigerant during operation. .

According to the laminated flow path oil heat exchanger according to the present invention as described above, the technical features for improving the operational performance of the vehicle with the convenience of installation that can be applied collectively regardless of the circulation pump having a different capacity according to the vehicle type do.

Although the above has been described with reference to a preferred embodiment of the laminated flow path oil heat exchanger according to the present invention, the present invention is not limited thereto, and various modifications and changes within the scope of the claims and the invention and the accompanying drawings. What can be changed and implemented is also included in this invention.

1 is an exploded perspective view showing a first embodiment of a laminated oil passage heat exchanger according to the present invention.

FIG. 2 is a cross-sectional view taken along line “A-A” of FIG. 1 as a coupled state of the first embodiment of the multilayer flow path oil heat exchanger according to the present invention.

3 is a cross-sectional view taken along the line “B-B” of FIG. 1 as a coupled state to the first embodiment of the multilayer flow path oil heat exchanger according to the present invention.

4 is a cross-sectional view taken along line "C-C" of FIG. 1 as a combined state of the first embodiment of the multilayer flow path oil heat exchanger according to the present invention.

5 is an exploded perspective view showing a second embodiment of the laminated flow path oil heat exchanger according to the present invention.

FIG. 6 is a cross-sectional view taken along the line “A-A” of FIG. 5 as a combined state of the second embodiment of the multilayer flow path oil heat exchanger according to the present invention.

FIG. 7 is a cross-sectional view taken along the line “B-B” of FIG. 5 as a combined state of the second embodiment of the multilayer flow path oil heat exchanger according to the present invention.

FIG. 8 is a cross-sectional view taken along line “C-C” of FIG. 5 as a coupled state of the second embodiment of the multilayer flow path oil heat exchanger according to the present invention.

9 is an exploded perspective view showing a bonding state to the flow path unit plate of the laminated flow path oil heat exchanger according to the present invention.

10 is a plan view showing a bonded state of the flow path unit plate of the laminated flow path oil heat exchanger according to the present invention.

11 is a plan view showing a state in which a pair of flow path unit plates are mounted on a bypass plate in the second embodiment of the stacked flow path oil heat exchanger according to the present invention.

Claims (8)

A pair of flow path unit plates of the same type are bonded and stacked in plurality, and each flow path formed inside and outside the flow path unit plates of each pair is configured to be heat-exchangable while an oil or refrigerant flows, and is stacked on top of the flow path unit plate. Or at least one of the lower end including a bypass plate laminated oil flow type heat exchanger for smoothly supplying the oil or refrigerant irrespective of the pump capacity for the circulation of the oil or refrigerant. The method according to claim 1, The flow path unit plate is a plate formed to face the inner and outer sides of the convex, the joint flange portion formed along each edge of the flow path unit plate and bonded to each other, and a pair of two perforated on the flow path unit plate In the form of a hole, a connecting porter portion corresponding to the inlet and outlet pipes of the oil or refrigerant, and a pair of perforated projections protruded or recessed in opposition to the other pair, and two holes of each pair of the connection porter portions Laminated passage-type oil heat exchanger is formed between the diagonal direction of the same direction formed in the inner and outer surfaces of the flow path unit plate and includes a flow path guide for inducing the flow of the oil or refrigerant. The method according to claim 2, The bypass plate is a laminated flow path type oil heat exchanger including a through-path corresponding to the connection porter portion of the flow path unit plate, and a pass path for linking the through-hole paired with each other. The method according to claim 3, The path path portion is a multi-layer oil type heat exchanger made of only a plurality of long-pass paths, or comprising a connection path for linkage between the paths. The method according to claim 2, The flow path unit plate is a laminated flow path oil heat exchanger to reduce the frictional resistance between the flow oil or refrigerant and the flow path formed by forming the height of the protruding end of the flow path guide portion protruding to the inner surface of the pair to be bonded to each other higher or lower. The method according to claim 2, The flow path unit oil heat exchanger is easy to set the flow direction when the flow path unit plate is provided with a flange projection end and a flange cutting groove at each of the front end of the joint flange portion corresponding to each other when the joint. The method according to claim 2, The flow path unit plate is formed in the form of a projection formed from the inner surface to the outer surface, and formed in at least two places of the inner edge of the outer surface includes a laminated beads made of a male and female coupling when the pair of the flow path unit plates laminated in pairs Laminated passage-type oil heat exchanger to prevent slipping while holding the position between the outer surface of the flow path unit plate which are mutually opposed. The method according to any one of claims 2 to 7, The flow path unit oil heat exchanger including a reinforcement protrusion for supporting the pressure according to the load of the oil and the refrigerant in contact with each other when stacked in the form of a projection formed from the inner surface to the outer surface.

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