Discharge cap for cooler system

Abstract

A discharge cover (1) for a cooler system (2) is described. The discharge cap (1) comprises an annular contact region (11) and an outflow lip (12) arranged radially outward from the contact region (11). In this case, the contact region (11) is provided for abutment against a connection sleeve (4) of the cooler system. The outflow lip (12) is arranged at a predetermined angle (alpha) with respect to an axis of rotation (X-X) of the contact region (12), the outflow lip (12) being designed to discharge liquid radially outward from the coupling sleeve (4).

Description

Technical Field

[0001] The present invention relates to a discharge cover for a cooler system and a cooler system. Background Technology

[0002] The inverter's cooler assembly typically consists of two aluminum fins brazed together and associated connecting sleeves for the cooling medium's input and output. During assembly, the connecting sleeves are inserted through drilled holes in the housing. To ensure a tight seal between the cooler assembly and the housing from the outside, a sealing section exists between the cooler assembly and the housing.

[0003] In certain applications, the connecting bushing is fitted "up" to the housing. This creates a basin-shaped portion in the housing borehole, preventing liquid from draining. During operation, this accumulated water corrodes and seeps into the seals, leading to inverter leaks and malfunctions. Summary of the Invention

[0004] In contrast, the drain cover for a cooler system according to the invention, having the features of claim 1, has the advantage that the drain cover is configured to radially outwardly discharge liquid from the connecting sleeve, preventing the formation of corrosive water within the cooler assembly. This is achieved according to the invention, with the features of claim 1, by having an annular contact area configured to abut against the connecting sleeve of the cooler system. Furthermore, the drain cover has an outflow lip arranged radially outward from the contact area, the outflow lip being oriented at a predetermined angle relative to the axis of rotation of the contact area. Therefore, the outflow lip is configured to radially outwardly discharge liquid from the connecting sleeve. In the case of an outflow lip curved radially, the angle between the outflow lip and the axis of rotation is calculated at the centroid of the cross-section of the outflow lip. The outflow lip is preferably arranged transversely to the axis of rotation of the contact area. Thus, the angle between the outflow lip and the axis of rotation allows liquid, especially sprayed water, to be radially outwardly discharged.

[0005] The dependent claims illustrate preferred improvements of the invention.

[0006] Preferably, the discharge cover has an L-shaped cross-section with a first leg and a second leg, wherein the contact area forms the first leg and the discharge lip forms the second leg. Therefore, the contact area and the discharge lip are connected to each other at a common end, and liquid can be discharged directly through the discharge lip without the risk of liquid accumulation at the contact area.

[0007] Furthermore, the angle α between the first leg and the second leg is preferably less than 90°. This prevents liquid from accumulating on the discharge cover even when it is horizontally oriented.

[0008] It is particularly preferred that the angle α between the first leg and the second leg is between 60° and 80°, and especially essentially 70°. This angle is particularly advantageous so that the liquid can be discharged radially outward as far as possible with the shortest possible outlet lip, without liquid accumulation.

[0009] Furthermore, the first leg is preferably oriented parallel to the axis of rotation of the contact area. Therefore, the first leg can seal the connecting sleeve through the contact area within its entire longitudinal axis and prevent liquid from penetrating the connecting sleeve in the contact area.

[0010] The discharge cover is preferably made of an elastomer. Therefore, the discharge cover can be advantageously manufactured and can be flexibly adapted to the corresponding application areas.

[0011] The present invention further includes a cooler system according to the features of claim 7, comprising a cooler, a housing, a connecting sleeve, and a discharge cover according to the invention. Here, the connecting sleeve is connected to the cooler and inserted through a drilled hole in the housing. The discharge cover is fastened to the connecting sleeve. Here, the discharge lip of the discharge cover abuts against the housing on its peripheral side. Therefore, the discharge cover is configured to guide liquid away from the drilled hole and the connecting sleeve, thereby preventing liquid accumulation in the cavity between the connecting sleeve and the housing. Thus, the cooler system with the discharge cover is advantageous in significantly reducing the corrosion load of the cooler system and improving its service life.

[0012] Preferably, the axis of rotation of the connecting sleeve is oriented parallel to the direction of gravity F. The system according to the invention prevents liquid from accumulating in the cooler system and causing increased corrosion load.

[0013] Furthermore, a sealing portion is preferably arranged around the borehole between the housing and the connecting sleeve. The sealing portion ensures a tight seal from the outside relative to the inside of the cooler. The discharge cover according to the invention prevents liquid from accumulating in the cavity between the housing, the connecting sleeve, and the sealing portion.

[0014] In a preferred embodiment of the invention, the cooler is configured to cool the inverter. The inverter conducts large currents and must be cooled for efficient operation. Furthermore, conductive liquids must be prevented from entering the inverter. The cooler system according to the invention reduces corrosion of the cooler system and thus ensures reliable cooling of the inverter.

[0015] The preferred cooler is a plate-type component. Plate-type components can achieve high heat dissipation, but they are susceptible to corrosion. The structure according to the present invention can significantly reduce the corrosion susceptibility of plate-type components.

[0016] The cooler is preferably a plate-type component made of aluminum sheets.

[0017] Furthermore, the connecting sleeve preferably has an external groove, in which the contact area of ​​the discharge cover is arranged. The groove prevents the discharge cover from being pushed axially along the connecting sleeve. This ensures that the discharge cover seals at the groove of the connecting sleeve through the contact surface and relative to the housing through the outflow lip, without forming a gap between the outflow lip and the housing. Attached Figure Description

[0018] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0019] Figure 1 A schematic cross-sectional view of a cooler system according to a preferred embodiment is shown, and Figure 2 Showing from Figure 1 A schematic perspective view of the cooling system. Detailed Implementation

[0020] Next reference Figure 1 and 2 A cooler system with a discharge cover according to a preferred embodiment of the invention is described in detail.

[0021] Figure 1 Cooler system 2 is shown. Cooler system 2 includes a cooler 3, a housing 8 with drilled holes 5, a connecting sleeve 4, and a discharge cover 1. Cooler system 2 is configured to cool the inverter.

[0022] The connecting sleeve 4 is a rotationally symmetrical component that is fixedly connected to the cooler 3. The cooling medium can flow into or out of the cooler 3 through a through-hole in the connecting sleeve 4. The cooler 3 consists of two aluminum sheets brazed together.

[0023] The connecting sleeve 4 has a plurality of grooves 41 on its outer surface on the peripheral side, the grooves being configured to receive the discharge cover 1 and / or coolant connector.

[0024] A connecting sleeve 4 is arranged in a borehole 5 within the housing 8, wherein there is a clearance fit between the housing 8 and the connecting sleeve 4. Here, the connecting sleeve 4 is oriented parallel to gravity F. The connecting sleeve 4 is arranged to a stop portion in the borehole 5, which is obtained by the cooler 3 contacting the housing 8 through a sealing portion 6 arranged between the housing 8 and the cooler 3.

[0025] The discharge cover 1 is arranged in the groove 41 of the connecting sleeve 4 via the contact area 11. Here, the rotation axes X–X of the contact area 11 and the connecting sleeve 4 are oriented coaxially with each other. An outflow lip 12 is arranged adjacent to the contact area 11, the outflow lip extending radially outward from the contact area 11 and positioned on the outer side of the housing 8.

[0026] Therefore, the discharge cover 1 seals the cavity 7 between the connecting sleeve 4, the housing 8, and the sealing part 6, and prevents liquid from entering the cavity 7. The liquid is preferably water spray, but it can also appear in other forms. The contact area 11 and the discharge lip 12 are preferably one piece.

[0027] The discharge cover 1 is described as having an L-shaped cross-section with a first leg 13 and a second leg 14. Here, the contact area 11 forms the first leg 13 and the discharge lip 12 forms the second leg 14. The first leg 13 of the contact area 11 is oriented parallel to the rotation axis X–X of the connecting sleeve 4.

[0028] An exemplary angle α of 70° is present on the peripheral side between the first leg 13 and the second leg 14. Angle α is inclined relative to gravity F and the connecting sleeve 12, such that liquid is discharged radially outward from the discharge cover 1.

[0029] Figure 2 The above shows from Figure 1 A perspective view of the cooler system 2. Here, the connecting sleeve 4 is introduced into the housing 8. The drain cover 1 is arranged around the connecting sleeve 4 on the peripheral side and abuts against the housing 4, so that the borehole 5 is sealed to prevent liquid from draining in. Therefore, liquid cannot accumulate in the cavity 7 between the housing 8 and the cooler 3, thereby reducing corrosion of the cooler system 2.

Claims

1. Discharge cover (1) for a chiller system (2), the discharge cover comprising: - an annular contact area (11), and - a run-off lip (12) arranged radially outward from the contact area (11), - wherein the contact area (11) is configured for abutting at a coupling sleeve (4) of the chiller system, - wherein the run-off lip (12) is arranged at a predetermined angle (a) relative to an axis of rotation (X-X) of the contact area (12), and - wherein the run-off lip (12) is configured for discharging liquid radially outward from the coupling sleeve (4).

2. The discharge closure (1) according to claim 1, wherein The discharge cover (1) has an L-shaped cross section with a first leg (13) and a second leg (14), wherein the contact area (11) forms the first leg (13), and wherein the run-off lip (12) forms the second leg (14).

3. The discharge closure (1) according to claim 2, wherein The angle (a) between the first leg (13) and the second leg (14) is less than 90°.

4. The discharge closure (1) according to claim 3, wherein The angle (a) between the first leg (13) and the second leg (14) is between 60° and 80°.

5. The discharge closure (1) according to any one of claims 1 to 4, wherein The first leg is oriented parallel to the axis of rotation of the contact area.

6. The discharge closure (1) according to any one of the preceding claims, wherein The discharge cover (1) is made of an elastomer.

7. Chiller system (2) comprising: - a chiller (3), - a housing (8), - a coupling sleeve (4) connected with the chiller (3) and plugged through a bore (5) in the housing (8), and - a discharge cover (1) according to any one of the preceding claims, - wherein the discharge cover (1) is fastened at the coupling sleeve (4), - wherein a run-off lip (12) of the discharge cover (1) abuts at a peripheral side against the housing (8), and - wherein the discharge cover is configured for conducting liquid away from the bore (5) and the coupling sleeve (4).

8. The chiller system (2) of claim 7, wherein, An axis of rotation (X-X) of the coupling sleeve (4) is oriented parallel to a direction of action of the gravitational force (F).

9. The chiller system (2) according to claim 7 or 8, wherein, A seal (6) is arranged around the bore (5) between the housing (8) and the coupling sleeve (4).

10. The chiller system (2) according to any one of claims 7 to 9, wherein, The chiller (3) is configured for cooling an inverter.

11. The chiller system (2) according to any one of claims 7 to 10, wherein, The chiller (3) is a sheet-type member.

12. The chiller system (2) according to any one of claims 7 to 11, wherein, The coupling sleeve (4) has an external recess (41) in which the contact area (11) of the discharge cover (1) is arranged.

Images