DE102007062880A1 - Heating block for a water heater - Google Patents

Abstract

The present invention relates to a heating block (1) for water heaters, comprising a heating device (2), a water inlet (3), a water outlet (4) and a pipe (5) connecting the water inlet (3) and water outlet (4). The invention is characterized in that the heating block (1) has an opening (6) which extends from the outside into the flow channel of the heating block (1) and into which a sieve (7) and / or a flow rate limiter (8) can be introduced is. The present invention enables a safe and cost-effective installation of a sieve with high ease of installation.

Description

The Invention relates to a heating block for a water heater, at least comprising a heating element, a water inlet, a Water drain and an inlet and outlet connecting piping.

Heating blocks for water heaters are known in the art. In order to clean thereby channeled fluid and, for example, to protect heating elements from contamination, it is known to direct the fluid through an introduced sieve. In this connection, the example describes DE 199 19 910 A1 a water connector with an inlet and a drain and a cross-branching nozzle. A strainer and, optionally, a flow limiter can be inserted in these nozzles. This solution requires that only connecting parts with sieve are used. From practice, however, it is known that often the existing connection parts are used in device replacement. This may result in the equipment being operated without a sieve and the unit not being protected from contamination.

Of these, Based on the object of the present invention, a heating block available for water heaters too provide that avoids the disadvantages mentioned, and simple Can be replaced.

Solved This object is achieved with the features of claim 1. Advantageous Training and developments of the invention, which individually or in combination can be used with each other, are the subject of Dependent claims.

Of the Heating block according to the invention for water heaters builds on generic heating blocks in that this heating block has an opening, from the outside into the flow channel of the heating block ranges, and in the one sieve and / or a flow rate limiter can be introduced.

Thereby becomes a significant improvement over the prior art achieved. Characterized in that the heating block has an opening, which reaches from outside into the flow channel of the heating block, and in which a sieve and / or a flow rate limiter can be introduced is, the construction described makes a cost-effective Solution to a sieve and / or a flow limiter inexpensive to integrate in a Kunststoffheizblock. As a result, costs can be saved in case of service, because The sieve can be easily removed and cleaned without further assemblies such as pipes etc. must be dismantled. By large sieve surfaces can thereby long maintenance intervals are realized. Because the opening, in which the sieve and / or the flow rate limiter used can be directly into the heating block is Ensures that optimum protection of the heating block is achieved. This also makes it possible, among other things, heating block and the opening for the sieve in one operation manufacture. Furthermore, it is advantageous that the inventive Device reaches a large sieve surface can be. In known in the prior Techink solutions often has a hat-shaped or conical Sieve introduced into the water supply of the device become. Due to the usual dimensions of the fluid channels However, in such Siebformen only relatively small screen surfaces possible and the sieve must be cleaned frequently. In addition, the invention avoids another disadvantage in the prior art, which is that usually solved further parts such as pipe connections must be to get to the sieve. That's it hard for a mechanic to recognize without instructions, where in the device the sieve is installed. at a heating block according to the invention is such Installation effort not required.

It has proved to be advantageous when the opening is T-shaped protrudes into the heating block. This is insofar fluidic particularly favorable, because the screen to be inserted through the Water open water cross sections offers that a large Have cross-section and at their edges one each offer streamlined profile.

In Another preferred embodiment is the opening closed by a screw cap pressure and water resistant. This will ensure that the closure is fast and reliable to open, quickly closed can be closed and pressure and waterproof, so that a trouble-free operation of the heating block is made possible. It has proved to be particularly advantageous when the rotary closure on its outside an engaging means, using the user better grip and turn the screw cap can. The outside of the screw cap can also be a Thread, by means of which the screw cap simply opened and can be closed.

In Another preferred embodiment is the heating device of the heating block electrically operable.

Especially is advantageous if the heater in this case with a bare wire heating system is operated.

Furthermore, it has proved to be advantageous if the heating block comprises plastic. That's it particularly advantageous if the heating block is produced in an injection molding process. This makes it possible to produce the heating block and the opening into which the screen and / or a flow restrictor can be introduced in one operation.

In Another preferred embodiment is in the opening the heating block additionally insertable insert, which a means for flow measurement and / or a sieve and / or a flow restrictor comprises.

From It is particularly advantageous if the means for measuring the flow is an impeller.

The The present invention enables a safe and inexpensive Installation of a sieve with high ease of installation.

Further Advantages and embodiments of the invention are described below two embodiments, to which the present Invention is not limited and with reference explained in more detail in the accompanying drawings.

In this show schematically:

1 A schematic representation of a preferred embodiment of a heating block; such as

2 a schematic representation of another preferred embodiment of a heating block.

at the following descriptions of the preferred embodiments In the present invention, like reference characters designate the same or similar components.

1 shows a schematic representation of a heating block 1 in which over the water inlet 3 Water can be supplied. A piping 5 connects water inlet 3 and water drainage (not shown). The heating block 1 has an opening 6 on the outside from the flow channel of the heating block 1 enough. In this opening 6 can a sieve 7 and / or a flow restrictor 9 be introduced. The opening 6 is through a screw cap 10 pressure and water resistant. In this case, the screw cap 10 on its top an engaging means 8th on, by means of which the screw cap can be detected and rotated by a user in an advantageous manner.

2 shows a schematic representation of another preferred embodiment of the heating block for water heaters. The heating block 1 has a water inlet 3 , a water drain 4 and a water inlet 3 and water drainage 4 connecting piping 5 on. In the middle part of the piping 5 is schematically a heating element 2 shown, which causes the heating of the water. Near the water inlet 3 there is an opening 6 , in which a sieve (not shown) can be introduced. This opening 6 is through a screw cap 10 pressure and water resistant. On its upper side, the screw cap 10 an intervention means 8th by means of which it can be advantageously detected and rotated by a user.

The The present invention enables a safe and inexpensive Installation of a sieve with high ease of installation.

1

heating block

2

heating element

3

water supply

4

water drain

5

piping

6

opening

7

scree

8th

engagement means

9

flow limiter

10

screw cap

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - DE 19919910 A1 [0002]

Claims (11)

Heating block ( 1 ) for water heaters, at least comprising a heating element ( 2 ), a water inlet ( 3 ), a water drain ( 4 ) and a water inlet ( 3 ) and water drainage ( 4 ) connecting piping ( 5 ), characterized in that the heating block ( 1 ) an opening ( 6 ), which from the outside into the flow channel of the heating block ( 1 ) and into which a sieve ( 8th ) and / or a flow rate limiter ( 9 ) can be introduced. Heating block ( 1 ) according to claim 1, characterized in that the opening ( 6 ) T-shaped in the heating block ( 1 ) protrudes. Heating block ( 1 ) according to claim 1 or 2, characterized in that the opening ( 6 ) a screw cap ( 10 ), by means of which it is pressure and / or waterproof closed. Heating block ( 1 ) according to one of the preceding claims, characterized in that the heating element ( 2 ) of the heating block ( 1 ) is electrically heated. Heating block ( 1 ) according to claim 4, characterized in that the heating block is heated by means of a bare wire heating system. Heating block ( 1 ) according to one of the preceding claims, characterized in that the heating block ( 1 ) Plastic. Heating block ( 1 ) according to claim 6, characterized in that the heating block ( 1 ) can be produced in an injection molding process. Heating block ( 1 ) according to one of the preceding claims, characterized in that in the opening ( 6 ) a means for flow measurement can be used. Heating block ( 1 ) according to claim 8, characterized in that the means for flow measurement is an impeller. Heating block ( 1 ) according to one of claims 3 to 9, characterized in that the rotary closure ( 9 ) on its upper side at least one engaging element ( 8th ) having. Heating block ( 1 ) according to one of the preceding claims, characterized in that the heating block ( 1 ) Is part of a water heater.