KR-102962805-B1 - Coolant heater

KR102962805B1KR 102962805 B1KR102962805 B1KR 102962805B1KR-102962805-B1

Abstract

The present invention provides a cooling water heater comprising: an upper plate having an inlet for cooling water and an outlet for cooling water formed on its upper surface; a lower plate coupled to the upper plate; a heating element disposed in the internal space between the upper plate and the lower plate; and a controller cover portion coupled to one side of the upper plate and the lower plate, having a through hole formed therein into which the end of the heating element and an electrode terminal coupled to the end of the heating element are inserted; wherein the controller cover portion has an epoxy retaining groove formed on the opposite side of the upper plate and the lower plate. According to the cooling water heater of the present invention, the inner wall of the controller cover, where the end of the heating element contacts, is formed as a curved surface, making it easy to insert the heating element. In addition, when installing a sealing member on the heating element, any remaining epoxy residue is collected in the epoxy retention groove formed in the controller cover, thereby preventing the epoxy residue from flowing into the seal pack seating portion. Furthermore, flat protrusions and angled protrusions are formed on the upper plate and the lower plate, enabling a strong connection between them, thus preventing movement between them. Additionally, embossing portions are formed on the upper plate and the lower plate, respectively, and as they are welded together, pressure strength is improved and deformation does not easily occur when pressurized. Moreover, contact protrusions are formed on the ends of the upper plate and the lower plate, increasing the welding area when combined with the controller cover, thereby enabling a strong weld.

Inventors

이종문
박동혁

Assignees

주식회사 두원공조

Dates

Publication Date: 20260513
Application Date: 20200616

Claims (7)

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An upper plate having an inlet for cooling water and an outlet for cooling water formed on the upper surface; A lower plate coupled to the upper plate above; A heating element disposed respectively in the internal space between the upper plate and the lower plate; and A controller cover portion coupled to one side of the upper plate and the lower plate, having a through hole formed therein into which the end of the heating element and an electrode terminal coupled to the end of the heating element are inserted; wherein The above controller cover part is, cover plate and, A cooling water heater comprising a cover projection that is formed to protrude from the cover plate toward the upper plate and the lower plate, has a through hole formed therein, and, as it protrudes toward the upper plate and the lower plate, has an epoxy retaining groove formed on the opposite side of the upper plate and the lower plate.
In claim 2, The above heating element is a cooling water heater in which a sealing member is disposed between the end and the electrode terminal.
In claim 2, The above-mentioned through hole is a cooling water heater in which the inner wall in contact with the end of the heating element is formed as a curved surface.
In claim 2, The upper plate and the lower plate are a cooling water heater having a plurality of contact protrusions formed protruding from one side.
In claim 2, The upper plate has a first embossing portion formed on the surface of the lower plate side, and The above lower plate is a cooling water heater having a second embossing portion formed on the surface of the upper plate side that is coupled to the first embossing portion.
In claim 2, The above upper plate and the above lower plate are a cooling water heater having a plurality of assembly flat protrusions and assembly bent protrusions formed protruding from the outer edge portion.

Description

Coolant heater The present invention relates to a cooling water heater, and more specifically, to a heater for heating cooling water. Various vehicles are equipped with an air conditioning system to selectively supply cold and warm air to different parts of the interior; in the summer, the air conditioner is operated to supply cold air, and in the winter, the heater is operated to supply warm air. However, unlike vehicles using engines, electric and fuel cell vehicles cannot or do not allow for the application of cooling water circulation systems capable of utilizing waste heat. Consequently, there is a recent trend toward the development of cooling water heaters that control the current of heating elements using electronic components, in response to the needs of various vehicle types, including electric vehicles, and the requirements of users. For example, as shown in FIG. 1 and FIG. 2, a conventional cooling water heater (1) comprises: an upper plate (2) having an inlet (8) for the inflow of cooling water and an outlet (7) for the outflow of cooling water; a lower plate (3) coupled to the upper plate (2); a heating element (5) disposed between the upper plate (2) and the lower plate (3), with a sealing member (12) inserted between the end and the electrode terminal (11); and a controller cover part (4) coupled to one side of the upper plate (2) and the lower plate (3), having a through hole (9) formed therein into which the end of the heating element (5) and the electrode terminal (11) coupled to the end of the heating element (5) are inserted; and a controller case (6) coupled to the outside of the controller cover part (4). However, the conventional cooling water heater (1) as described above has the following problems. Since it is difficult to insert the heating element (5) into the controller cover part (4), there is an inconvenience in that considerable time and effort are required during assembly. And when applying epoxy to attach a sealing member (12) to the end of the heating element (5), the residue flows down to the seal pack seating portion (13) of the controller cover portion (4), thereby interfering with the sealing effect. In addition, the upper plate (2), the lower plate (3), and the heating element (5) have the disadvantage of being reduced in bonding strength due to fluidity occurring during assembly. In addition, the upper plate (2), lower plate (3), and heating element (5) have a narrow welding area with the controller cover part (4), so the bonding strength is low, the welding work is not stable, and there is a problem of a high defect rate and reduced productivity. In addition, the upper plate (2) and the lower plate (3) had the problem of easily deforming when pressure was applied. FIG. 1 is a perspective view of a conventional cooling water heater. FIG. 2 is a drawing showing the shape of the controller case of FIG. 1 before it is assembled. FIG. 3 is a perspective view of a cooling water heater according to a first embodiment of the present invention. Fig. 4 is an exploded view of Fig. 3. FIG. 5 is an enlarged view showing the heating element and the controller cover combined when cut along the line A-A' of FIG. 3. FIG. 6 is a drawing showing the shape of the controller case of FIG. 3 before it is assembled. FIG. 7 is a drawing showing the shape of the upper plate and lower plate of FIG. 3 before they are combined with the controller cover. FIG. 8 is a drawing illustrating the upper plate and the lower plate being combined with the embossing portion of FIG. 3 formed. Fig. 9 is a drawing showing a cooling water heater viewed from direction B of Fig. 3. The present invention has been described with reference to the embodiments illustrated in the drawings, but this is merely illustrative, and those skilled in the art will understand that various modifications and equivalent alternative embodiments are possible therefrom. Accordingly, the true technical scope of protection of the present invention should be determined by the technical spirit of the appended claims. Referring to FIGS. 3 to 9, a cooling water heater (100) according to the first embodiment of the present invention includes an upper plate (110), a lower plate (120), a heating element (130), a controller cover part (140), and an epoxy retaining groove (143). The upper plate (110) has an inlet (115) for introducing cooling water and an outlet (114) for discharging cooling water formed on its upper surface. The lower plate (120) is combined with the upper plate (110). And on the left and right sides of the upper plate (110) and the lower plate (120), a fixing bracket (151) for installation on a vehicle (not shown) is formed. The heating element (130) is placed in the internal space between the upper plate (110) and the lower plate (120). Here, a sealing member (132) is disposed between the end of the heating element (130) and the electrode terminal (131) to prevent insulation, and this will be explained later. The controller