Hot water tank

Abstract

A hot water storage tank (10) is provided with a storage container (100), a cold water connection (11), a hot water connection (12), and an electrical connection compartment (200). The electrical connection compartment (200) is formed by a housing with a plastic storage container base (210) and a plastic cover (220). The hot water storage tank (10) has an electrical connection compartment holder (270) for receiving and holding electrical and / or electronic components (240, 250, 260), which is fastened in or to the electrical connection compartment (200).

Description

The present invention relates to a hot water storage tank.A hot water storage device typically has a storage container and an electrically operated heating unit. The hot water storage device has a cold water connection as an input connection and a hot water connection as an output connection as well as electrical connections for the electrical heating unit.EP 3 315 872 A2 shows a hot water storage device with a storage container with a cold water connection as well as a hot water connection and an electrical heating flange. The electrical connections and the hot water connection and the cold water connection are provided in the lower region of the hot water reservoir and can be part of a heating flange.It is an object of the invention to provide a hot water storage tank with an improved spray protection.This object is achieved by a hot water storage device according to claim 1.Hot water storage with a storage container, a cold water connection, a hot water connection, and an electrical connection space is provided. The electrical connection space is formed by a housing with a storage container base made of plastic and a cover made of plastic. The hot water storage device has an electrical connection space holder for receiving and holding electrical and / or electronic components, which is fastened in or on the electrical connection space.The electrical connection space holder can have at least two sections each for holding an electrical and / or electronic component. The at least two sections are arranged at an angle to each other so that they are adapted to a curvature of the cover. This leaves more space within the electrical connection space.The electrical and / or electronic components may be mounted to the electrical connection space holder before the electrical connection space holder is mounted in or on the electrical connection space. This leads to an improvement in assembly.One of the sections may have a hook for receiving and holding a connecting cable. This is advantageous since a bending radius for the connection cable can be predetermined therewith.A hot water storage device with a storage container, a cold water connection, a hot water connection, and a heating flange with electrical contacts is thus provided. The hot water storage device has an electrical connection space in which the electrical contacts of the heating flange can be connected to an input current cable, for example, via connection terminals. The electrical connection space is formed by a storage container base made of plastic and by a cover made of plastic. The electrical connection space is accordingly formed by the plastic cover, the storage container base and a lower side of the heating flange.Further embodiments of the invention are the subject matter of the dependent claims.Advantages and exemplary embodiments are explained in more detail below with reference to the drawings. FIG. 1 shows a perspective view of a hot water storage tank, FIG. 2 shows a perspective view of an electrical connection space of a hot water storage tank, FIGS. 3 to 5 each show a schematic view of an open electrical connection space, FIG. 6 shows a schematic view of an electric space holder, and FIG. 7 shows a schematic illustration of the electrical connection space.FIG. 1 shows a perspective view of a hot water storage tank. The hot water storage device 10 has a storage container 100, an electrical connection space 200, a cold water connection 11, and a hot water connection 12. The hot water storage device 10 can be connected to an energy supply network via an electrical supply line 13. The electric connection space 200 may be provided at the lower end of the heat storage 10. The storage container 100 may be arranged on a storage floor 210 made of plastic. The storage floor 210 forms an upper end or the ceiling of the electric connection space 200, and the cover 220 made of plastic closes the electric connection space 200, for example, downward and sideways. The electrical connection space 200 is therefore substantially surrounded by a plastic housing.Optionally, a display 14 can be provided in the region of the electrical connection space 200. The display 14 may be connected to the storage floor 210.For sealing the pipe for the cold water connection 11 and the pipe for the hot water connection 12, a seal 300 is provided in each case.The storage floor 210 may include a first protrusion 210 aand a second protrusion 210 b. The cover 220 may have corresponding recesses 221.FIG. 2 shows a perspective view of an electrical connection space of a hot water storage tank. The hot water storage device 10 has a storage container 100 and an electrical connection space 200. The electric connection space 200 may be provided at the lower end of the heat storage 10. The storage container 100 may be arranged on a storage floor 210 made of plastic. The storage floor 210 forms an upper end or the ceiling of the electric connection space 200, and the cover 200 closes the electric connection space 200, for example, downward. In FIG. 2, the cover 220 is shown partially disassembled. The cover 220 may be fixed to the storage floor 210 or to a bottom portion 210 aof the storage floor 210, for example, by screws 220 a. A display 14 may be provided on the bottom portion 210 a. The bottom portion 210 amay protrude from a plane of the storage floor 210. This is advantageous because it contributes to stabilization of the cover 220 in the assembled state.The cover 220 has a first recess 221. The protruding bottom portion 210 amatches into the first recess 221 when the cover 220 is attached to the storage floor 210 as shown in FIG. 2. The first recess 221 and the bottom section 210 bform a labyrinth 230 at their transition in order to ensure a splash resistance according to IP 25.FIGS. 3 to 5 each show a schematic view of an open electrical connection space. In the electrical connection space 200, various electrical components, namely electrical connection terminals 240, a printed circuit board 250 having various electrical and / or electronic components, for example for controlling the hot water storage device 10, and / or a switch 260, are provided. These components 240, 250, 270 may be held by an electrical connection space holder 270. In other words, the electrical components 230, 240, 250 may be fixed to the holder 270. The holder 270 with the components attached thereto can in turn be attached in the electrical connection space 200.FIG. 6 shows a schematic view of an electrical connection space holder. The electrical connection space holder 270 has a first and a second end 270 a, 270 band three portions 274, 275, 278. The portion 275 at the second end 270 bfunctions to receive the circuit board 250 including the electrical and / or electronic components. The portion 274 with a mounting portion 276 serves to receive the component 260 (e.g., a switch). The portion 278 at the first end 270a serves to receive a lead.The three sections 274, 275, 278 can be arranged at an angle to one another, so that the holder 270 can adapt well to the cover 220 of round configuration and thus leaves free more space within the electrical connection space. The portion 278 includes a hook 278a which can serve to receive and retain a patch cable. This also ensures that the connecting cable cannot be freely located in the electrical connection space 200. The bending radius of the connecting cable 13 acan be predefined by the section 278 with the hook 278 a. This is advantageous in order to avoid cable breakage.The holder 270 may be fixed in or to the electrical connection space 200 by means of the fixing portions 279.FIG. 7 shows a schematic illustration of the electrical connection space. FIG. 7 shows in particular the arrangement of the connecting cable 13 aand the strands 13 b. The lead cable 13a is led through the terminal 13 to the inside of the electric connection space and held by the portion 278 having the hook 278a. The strands 13 bof the connecting cable 200 can be connected in the connecting terminals 240.References included in the specificationThis list of documents cited by the applicant has been produced in an automated manner and is only included for the better information of the reader. The list is not part of the German patent application or utility model application. The DPMA does not take any adhesion for any faults or omissions.Patent Literature citedEP 3 315 872 A2

[0003]

Claims

A hot water storage (10) comprising a storage container (100), a cold water connection (11), a hot water connection (12), an electrical connection space (200), wherein the electrical connection space (200) is formed by a housing having a storage container base (210) made of plastic and a cover (220) made of plastic, and an electrical connection space holder (270) for receiving and holding electrical and / or electronic components (240, 250, 260), wherein the electrical connection space holder (270) is fastened in or to the electrical connection space (200).The hot water storage (10) according to claim 1, wherein the electrical connection space holder (270) comprises at least two sections (240, 250, 260) each for holding an electrical and / or electronic component (240, 250, 260), wherein the at least two sections (240, 250, 260) are arranged at an angle to each other such that they are adapted to a curvature of the cover (220).The hot water storage (10) according to claim 1 or 2, wherein the electrical and / or electronic components (240, 250, 260) are mounted on the electrical connection space holder (270) before the electrical connection space holder (270) is mounted in or on the electrical connection space (200).The hot water storage (10) according to any one of claims 1 to 3, wherein one of the portions (278) includes a hook (278a) for receiving and holding a lead wire (13a).

Images