KR200341735Y1 - Header Pipes for Compact Heater Cores_ - Google Patents

Abstract

The present invention relates to a header pipe for a compact heater core, and when the heater core is made into a compact size with a small width, the header pipe for a compact heater core that can be used by connecting a large diameter coolant inlet pipe and a coolant outlet pipe. It is about.

The present invention has a header (11) to which heat exchange tubes (2) are connected, and a tank (13) coupled with the header to form a cooling water passage therein, the inlet pipe (15) at a predetermined position of the tank. In the header pipe to which the discharge pipe 17 is connected, the width of the lower end 113 of the header is approximately equal to the width of the tube, and the width of the upper end 115 is a circular inlet pipe. The inlet tube 15 and the outlet tube 17 having a circular cross section are coupled to the upper surface of the tank by enlarging a diameter larger than the diameters of the pipe and the discharge pipe, and also increasing the width of the tank placed on the header corresponding to the enlarged upper width of the header. Characterized in that it is. Therefore, by making the structure of the header 11 and the tank 13 into a special structure so that the conventional inlet pipe 15 and the outlet pipe 17 having a large diameter can be used as it is, the heater core 1 of a compact size is used as it is. The inlet pipe 15 and the discharge pipe 17, which can be applied when the tank width is narrow, can be applied as it is, without the need to make the slot type causing the cost increase.

Description

Header Pipes for Compact Heater Cores

The present invention relates to a header pipe for a compact heater core. Especially, when the heater core is made into a compact size, the compact heater core can be connected by using a large diameter coolant inlet and a coolant outlet. For header pipes.

BACKGROUND ART In general, a heater core for an automobile is installed in an air conditioning case, and is configured to blow hot air into an automobile interior by heat exchange between cooling air and cooling water blown through a blower by circulating the cooling water therein.

This heater core, as shown in Figure 3, by having a header 61 and the tank 62 coupled to the upper portion of the header and the header 61 is opened and the plurality of through holes 611 are formed along the longitudinal direction Two header pipes 6 and 6 which form passages for cooling water in the air; A plurality of tubes (7) communicating with the inner passages of the two header pipes by coupling both ends to corresponding through holes (611) of the two header pipes; A plurality of heat dissipation fins 8 stacked between the tubes; In addition, both ends 9 and 9 are connected to both ends of the two header pipes in turn so as to support the left and right sides of the tubes and the heat dissipation fins. The coolant inlet pipe 66 and the coolant discharge pipe 67 are sequentially connected to the upper header pipe 6, and a position between the coolant inlet pipe 66 and the coolant discharge pipe 67 of the upper header pipe 6 is typically provided. Is blocked with a baffle (not shown). Therefore, when the coolant flows into the approximately half area of the header pipe 6 through the coolant inlet pipe 66, the coolant flows through the tubes 7 to the lower header pipe 6 and to the lower header pipe 6. The cooling water flows back to the upper header pipe discharge pipe 67, which is approximately half the area of the upper header pipe 6, and is finally discharged through the discharge pipe. The cool air can be supplied to the room by heat-exchanging with the outside air in the process of flowing the cooling water.

The heater core as described above is inserted into and installed in the air conditioning case, but if the size of the heater core is large, the size and the installation area of the air conditioning case are increased according to the current trend of making the air conditioning apparatus compact. Will give birth to.

However, when the heater core is made compact and installed in the air conditioning case, the width of the upper header pipe 6 is relatively small compared to the diameters of the inlet pipe 66 and the outlet pipe 67 which are used in the related art. It is difficult to connect the inlet pipe 66 and the outlet pipe 67 having a large diameter as it is to the upper header pipe 6 having a smaller width as it is, and thus use the conventional inlet pipe 66 and the discharge pipe 67 as it is. Since the slot type inlet tube and outlet tube having the same hydraulic diameter as the conventional inlet tube 66 and the outlet tube 67 have to be used, the manufacturing cost increases.

The present invention has been devised in view of the above-described conventional problems, and when the heater core is made into a compact size having a small width, a compact that can be used by connecting a large diameter coolant inlet tube and a coolant outlet tube as they are used A header pipe for a heater core.

1 is a perspective view illustrating a heater core in which a header pipe according to the present invention is installed.

2 is a partial cross-sectional view showing a state in which a heater core having a header pipe according to the present invention is installed in an air conditioning case.

3 is a perspective view showing a conventional heater core.

<Explanation of symbols for the main parts of the drawings>

1: heater core, 1a: upper header pipe,

1b: lower header pipe, 2: tube,

3: heat dissipation fin, 4: support,

5: air conditioning case, 15: cooling water inlet pipe,

17: coolant discharge pipe, 113: the lower end of the header,

115: upper part of the header

In order to achieve the above object, the header pipe for a compact heater core according to the present invention, the header is formed with a plurality of through-holes and the heat exchange tube is connected to the heat exchange tube along the longitudinal direction and the header is combined with the cooling water inside the header In the header pipe for a compact heater core having a tank forming a passage, wherein the cooling water inlet pipe and the cooling water discharge pipe are respectively connected to a predetermined position of the tank, the width of the lower end of the header is formed to be approximately equal to the width of the tube. The width of the upper end portion is larger than the diameters of the cooling water inlet tube and the cooling water discharge tube, and the width of the tank placed on the upper header portion corresponding to the enlarged upper end width of the header is also enlarged. Characterized in that the discharge pipe is to be coupled.

According to the header pipe for the compact heater core of the present invention configured as described above, the width of the upper end of the header is larger than the diameter of the cooling water inlet and outlet pipes, and thus the tank on the top of the header having a width larger than the diameter of the inlet and outlet pipes. Since the width of the tank is larger than the diameter of the inlet and outlet pipes, the inlet and outlet pipes having a large diameter used in the prior art can be used as they are without having to newly change the slot type.

Other features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings.

As shown in FIG. 1, reference numeral 1 denotes a heater core, the header of which is open at the top and a plurality of through-holes 111 formed along the longitudinal direction, and a tank coupled to the upper portion of the header 11 ( 13, two header pipes 1a and 1b are formed to form passages of cooling water therein. The cooling water inflow pipe 15 and the cooling water discharge pipe 17 are sequentially connected to the upper part of the tank 13 of the upper header pipe 1a among these two header pipes 1a and 1b.

The two header pipes 1a and 1b are joined to the through holes 111 and 111 corresponding to each other (not shown in the upper header pipe 1a), and both ends of the tube 2 having a passage therein are joined to each other. The inner passages of the pipes 1a and 1b communicate with each other via the tubes 2. In this way, a plurality of heat dissipation fins 3 are stacked between the tubes 2 connecting the two header pipes 1a and 1b, and both headers are disposed at both ends on the left and right outermost sides of the tubes 2 and the heat dissipation fins 3. Both supports 4 and 4 which are in turn connected to both ends of the pipes 1a and 1b are provided so that the tubes 2 and the heat dissipation fins 3 are reinforced.

In order to configure such a heater core 1 in a more compact size than a conventional heater core and install it in the compact air conditioning case 5 (see FIG. 2), the heater core 1 should have a thinner width as a whole. In other words, the width of the tube 2 and the lower header pipe 1b must have a smaller width than the conventional one, and the upper header pipe 1a must also have a smaller width than the conventional upper header pipe.

However, when the width of the upper header pipe 1a has a smaller width than the conventional one, the conventional circular inlet pipe 15 and the discharge pipe 17 having a relatively large diameter cannot be connected and used as they are. The header 11 constituting the upper header pipe 1a is made into a special structure so that the circular inlet pipe 15 and the outlet pipe 17 having a diameter can be used as they are. That is, the width of the lower end 113 of the header 11 constituting the upper header pipe 1a is formed approximately equal to the width of the tube 2, and the width of the upper end 115 of the header 11 has a circular cross section. Compared with the diameters of the excitation coolant inlet pipe 15 and the coolant discharge pipe 17 are relatively large. In addition, the width of the tank 13 is also enlarged corresponding to the width of the upper end portion 115 of the header 11 thus formed, and the tank 13 is joined to the upper end of the header 11.

As shown in FIG. 1, the step W of the lower end 113 and the upper end 115 of the header 11 is preferably about 8 to 10 mm, respectively, so that the width of the tank 13 is the header. It becomes about 16-20 mm larger than the width of the lower end part 113 of (11).

Therefore, according to the header pipe for the compact heater core of the present invention, the width of the upper end portion 115 of the header 11 of the upper header pipe 1a is relatively larger than the diameter of the cooling water inlet pipe 15 and the discharge pipe 17, Thus, since the tank 13 is joined to the upper end of the header 11 having a width larger than the diameter of the inlet pipe 15 and the outlet pipe 17, the width of the tank 13 is the inlet pipe 15 and the discharge pipe 17 It can be used as it is without the need to change the slot inlet and outlet pipe having a larger diameter conventionally larger than the diameter of the new slot type.

In the header pipe for the compact heater core according to the present invention configured as described above, a conventional circular coolant inlet pipe 15 and outlet pipe 17 having a large diameter can be used as it is for the heater core 1 having a compact size. The inlet pipe 15 and the discharge pipe 17 are formed by using a special structure of the header 11 and the tank 13 of the upper header pipe 1a to which the inlet pipe 15 and the discharge pipe 17 are connected. Since it can be applied as it is conventionally without the need to make a slot type separately, manufacturing cost can be lowered as the part can be shared.

Claims (2)

It has a header (11) to which heat exchange tubes (2) are connected along the longitudinal direction and a tank (13) coupled with the header to form a cooling water passage therein with the header, the cooling water inlet pipe at a predetermined position of the tank ( In the header pipe for compact heater core to which 15) and cooling water discharge pipe 17 are respectively connected, The width of the lower end 113 of the header is approximately equal to the width of the tube, and the width of the upper end 115 is larger than the diameter of the cooling water inlet pipe and the cooling water discharge pipe. The width of the tank placed on top of the header corresponding to the enlarged upper end width of the header is also enlarged, so that the coolant inlet pipe 15 and the coolant outlet pipe 17 having a circular cross section are coupled to the upper surface of the tank. Header pipe for heater core. According to claim 1, wherein the step (W) of the lower end 113 and the upper end 115 of the header 11 are each about 8 to 10mm, so that the width of the tank 13 is the lower end of the header 11 A header pipe for a compact heater core, characterized in that about 16 to 20 mm larger than the width of (113).