CN102883817A - Electric shower - Google Patents

Abstract

It describes an electric shower endowed with a functional arrangement for the set of moving and fixed contacts (16,17) of the electric resistance operating system (47) that allows a more simplified, fast and efficient working. The present invention also provides a solution of captation and drainage of the leakage current that aims to eliminate the use of a metallic conductor within the device through its substitution by a polymeric conductor (74), wherein the configuration of the new electric shower is also endowed of practical solution for the replacement of the electric resistance (47) that allows its performance with only one stage, i.e., through the simple removal of a piece of a joint set of pieces allocated in the sieve region (4).

Description

electric shower

technical field

The invention relates to an electric shower for household use. More specifically, the invention relates to a more functional electric shower with technical solutions capable of improving the functionality of the device and optimizing the manufacturing process, starting from the conduction elements, the triggering of the electrical contacts and the resistance replacement system aspects reflected.

Background technique

Electric channel heaters, especially electric showers for domestic use, have been proposed in recent years with a great variety of technical and structural solutions aimed at their optimization. Such improvements have been developed in order to achieve better operation of the device, to achieve better comfort for the user, and to achieve benefits in the manufacturing process.

In any case, independent of such improvements, electric showers have a similar working system. These devices are designed to connect, disconnect and control power to a resistance which in turn remains permanently submerged in the water contained in the heating chamber. Although there are similarities in principle between many models of electric showers, such efforts have been made to continuously improve them.

Document PI 0405777 describes an electric shower with a heating chamber, the hydraulic points for feeding water are located in the lower part in an integrally integrated manner, the electric shower provides a shower or sprinkler to the water outlet. All these fixtures are enclosed by a polished exterior cover which in turn includes details to expose the electrical wiring, connections for the hoses of the small hand shower, temperature control knobs and access to the heating chamber.

Although many known electric showers work similarly, there are many deficiencies in the level of manufacture of the showers, in making them work by the user, and in their maintenance by the user.

A key feature of conventional electric showers involves the use of metallic electrical conductors to capture and dissipate leakage current. Usually, such conductive elements (so-called grounds) are metals, generally from alloys mainly copper and in some options from aluminum alloys. It is known that copper alloys or aluminum alloys provide sufficient conductivity for leakage currents to be adequately captured and consumed in any case by electrical equipment of the dwelling, this element requires a special stage of assembly in industrial processes, in It is not possible to eliminate this special assembly stage from the production process. Therefore, this feature requires additional controls, resulting in an increase in the final cost of the product.

Another essential aspect of the electric showers known from the prior art consists in configuring the triggering of the electrical contacts which will transmit the current to the resistor when it is submerged in water (after the tap has been turned on by the user). In most cases, the contacts are built on the end of the flexible sheet, which is attached by the opposite end in a mechanism sufficient to move it up and down so that the contacts of the flexible sheet may or may not interact with the The electrical connection of a fixed contact to connect or disconnect a resistor.

A major disadvantage of this type of mechanism relates to the speed at which the flexible sheet moves within it. One problem arises from the fact that the sheets (with silver ingot sheets at their ends to facilitate electrical contact) have electrical contacts of the flex wires, which are heavy. In this respect, the approach speed of the ingots tends to be reduced, with the risk that sparks or arc-chutes cause premature wear of the ingots, and may even be able to cause their bonding.

Where this occurs, a cyclical situation is that once the user turns off the water to the shower, the tablet will continue to bind and pass current to the resistor. Since the resistor will no longer be submerged in water, this phenomenon will cause an overload of current in the resistor, causing the resistor to burn out and need to be replaced. It is worth noting that despite the replaceable resistance, the current construction configuration of electric showers results in premature wear of the tablet (eg, silver) and indeed inevitably premature wear of the device.

Furthermore, it must be noted that the flexible electrical contacts are made of special materials in order to withstand the constant plastic deformation they undergo, resulting in a higher cost of the components.

In the end, it is unavoidable that the life of the resistance of the shower is less than the life of the electric shower. In this regard, it is common practice for users to purchase resistors and replace them.

In conventional devices, since the resistors involved remain within the device and need to be removed, the specific parts and components that contribute to the operation of the resistors usually need to be removed by at least one or more components, and also need to be manipulated after removal of such components resistance. Apart from being cumbersome, this solution offered by the prior art is also inconvenient due to the fact that a minimum technical knowledge is required for resistor replacement.

In short, no solution has been found that allows eliminating the assembly phase of metal wires, and no solution has been found that replaces metal wires by non-metallic materials for the flow of leakage currents.

Furthermore, there is also no solution that provides correct operation in the operation of the flexible sheet, which allows actuating the electrical contacts and thus the resistors at greater speeds. In other words, there has been no discovery of a method for improving the flexibility of the flexible sheets involved, changing the way the flexible sheets are assembled, and bending the flexible sheets with a view to obtaining a reduction in the response time for opening and closing of the contacts. Ideas to start with.

Finally, no practical solution has been found for replacing the resistors, which would allow it to perform the replacement of the resistors in only one stage, ie by simply removing the assembly of a set of parts.

Contents of the invention

The purpose of the invention:

It is therefore an object of the present invention to provide an electric shower with a solution for the collection and flow of leakage current which attempts to eliminate the use of metal conductors within the device by replacing them with polymer conductors.

The object of the present invention is also to provide an electric shower with functional means for the mobile and stationary contacts and wires of the operating system of the integrated resistance, which enables a more simplified, Fast and efficient connection.

It is also an object of the present invention to provide a practical solution for replacing the electric resistance with an electric shower which enables the combined device to be used in only one stage (i.e. by simply removing a set of parts distributed in the shower area). ) to perform the resistor replacement.

Summary of invention:

The object of the present invention is achieved by an electric shower comprising at least one moving contact, at least one fixed contact, at least two power supply lines, a resistance and an active function set by means of the opening and closing of the water flow. actuator, wherein the supply line is associated to a fixed contact, the movable contact is arranged in a suitable position below the fixed contact, wherein the opening driving action of the water flow abuts against the movable contact, and the movable contact moves against the fixed contact , used to supply current to the resistor.

The object of the invention is also achieved by an electric shower comprising an element collecting and dissipating the leakage current, wherein the element is a polymer conductor.

The object of the invention is also achieved by an electric shower comprising an electric shower and a shower associated to the lower part of the body by means of an association, wherein the electrical resistance is associated to heating resistance means, which are common by means of a separating element The ground is associated to the shower, where a simple separation between the shower and the body allows direct access to the resistance.

Description of drawings

The present invention will be described more fully below based on executable examples presented in the drawings. The accompanying drawings show:

Figure 1 presents a perspective view of a top angle (top angle) of a fully assembled shower of the present invention;

Figure 2 presents a perspective view of the interior angle of the fully assembled shower of the present invention;

Figure 3 presents a longitudinally cut side view of the shower of the present invention;

Figure 4 presents a laterally cut side view of the shower of the present invention;

Figure 5 presents an exploded perspective view showing a higher angle of the subassembly of the shower of the present invention;

Figure 6 presents a lower angle exploded perspective view showing the subassembly of the shower of the present invention;

Figure 7 presents a higher angle exploded perspective view of the shower of the present invention;

Figure 8 presents a lower angle exploded perspective view of the shower of the present invention;

Figure 9 presents a higher angle exploded perspective view of the shower of the present invention;

Figure 10 presents a lower angle exploded perspective view of the shower of the present invention;

Figure 11 presents a transversely cut higher angle perspective view of the shower of the present invention;

Figure 12 presents a higher angle perspective view of the longitudinal angle of the shower of the present invention;

Figure 13 presents two perspective views listing separately the constructional details of the cooperating system between the resistive means and the separating element;

Figure 14 presents a transverse cut-away perspective view showing some construction details of the partition element;

Figure 15 presents an exploded perspective view at a higher angle and two enlarged details showing the constructional characteristics of the heating resistor means and the separating element;

Figure 16 presents an exploded perspective view at a lower angle and an enlarged detail showing the constructional characteristics of the heating resistor means and the spacer element;

Figure 17 presents three partial perspective views, one mounting detail and two enlarged details showing details of the device that can be removed when changing the resistance of the device;

Figure 18 presents a perspective view and a transverse cut-away view, detailing details of the construction of the operating means of the electrical contacts;

Figure 19 presents a perspective view and a longitudinal cutaway view detailing construction details of plastic electrical conductors interconnected with conventional wires.

Detailed ways

According to the figures, it is preferred but not mandatory that the invention comprises a body 1 having a cylindrical shape, referred to with a rear radial connection or pipe joint 2 for water entry. Then, the lower part of the body 1 is completely open, and its edge has an extension configured to engage the member 3 to accommodate the shower 4 . A sealing separating element 5 is arranged between the parts 1, 4 involved, forming two chambers, an upper chamber 6 and a lower chamber 7 sealed between the parts 1, 4, through which water occurs flow out. It must be noted that the upper chamber 6 (also referred to as heating chamber or wet chamber) is configured as a heating chamber, in which the resistance device 8 is assembled, the resistance device 8 is powered by the automatic device driver 9, and the automatic device The driver 9 is then assembled in the upper part of the body 1 in the dry chamber 10 with a corresponding polishing cover 11 (see FIGS. 1 to 6 ). It is noted that the heating resistor unit 8 is equipped with whatever resistance 47 is normally used in electric showers, independent of the eventual changes to which the heating resistor unit may be subjected.

In operation, the heating resistor unit 8 is held 30 submerged in a volume of water held by the upper chamber 6 . The water is kept in the upper chamber 6 by the action of the partition element 5 which has a standpipe called a siphon 12 serving only as an outlet. Thus, the water passing to the lower chamber 7 is only that which passes over the volume of the upper chamber 6, keeping the heating resistor means 8 involved permanently submerged in the water.

As mentioned, the drive device 9 is positioned within the dry chamber 10 above the siphon 12 . The work of the drive unit takes place in conjunction with the water pressure entering the unit. Between the dry chamber 10 and the upper chamber 6 there is a partition wall 13, at which the upper side has integrated a complementary housing with the shape of the circular wall 14, with fixed contacts 17 (see 3, 4, 18 and 19) the acting means 15 of the aligned mobile contacts 16 are assembled inside a complementary housing.

Note that the fixed contacts 17 are sufficiently interconnected with the corresponding supply lines 18 . The supply line 18 is a conventional line, unlike the solutions found in the prior art, where this solution is possible due to the fact that the previously moving contacts are now stationary. Therefore, there is no need to use special flexible wires, which are required in the previous case, since they are able to resist the constant plastic deformation required for moving the contacts.

A flow pressure chamber 20 is formed between the circular walls 14 and below the acting device 15, the flow pressure chamber 20 comprising a communication opening 21 for water entry and a tubular water outlet 22 on the opposite side, the tubular water outlet 22 The lower end of the upper chamber terminates in the lower part of the upper chamber 6 where the outflow (volume) of the involved tubular water outlet 22 is limited, or smaller than the inflow of the pipe joint 2. The difference in cross section between the pipe connection 2 and the water outlet 22 is sufficient to generate a pressure in the flow pressure chamber 20 , wherein this pressure allows moving the acting device 15 in the sense of a closed circuit. Optionally and depending on the characteristics of the shower, the lower end of the water outlet 22 may be shorter in order to ensure that the resistance means 8 does not risk emerging out of the water while the resistance means still maintains its own electrical connection.

As shown in FIGS. 18 and 19 , the action device 15 for operating the mobile contact 16 is initially formed by a holder 50 with a circular cover, the holder 50 having a leg 51 near its edge, which enables the It develops itself vertically downwards and in its extremity has a free claw 52 which fits in a corresponding notch 53 present in the base of the circular wall 14 which in turn has a To engage guide lugs 54 of notches 55 present in cage 50 . It is noted that the central portion of the cage 50 also provides two adjacent vertical holes 56 configured as vertical guides for freely allowing in the upper surface of a plunger 58 in the shape of an inverted disk. The two cylindrical pins 57 pass through, and the annular spacer 60 double-injects (bi-inject) onto the diameter of the plunger 58 or on the cylindrical wall 59 of the plunger 58, and the annular spacer 60 is also included by the action device 15 . This spacer 60 has an inner wall 61 integrally bonded to the wall of the plunger 58 and an outer part 63 to be adjusted against the inner face of the circular wall 14 after the membrane part 62 , thus completing the pressure chamber 20 . Thus, the water flow pressure 25 causes upward movement of the plunger 58 which moves together with the pin 57 on the end of which at least one moving contact 16 is positioned. In short, the acting device 15 consists of a cage 50 , a plunger 58 and a spacer 60 .

The moving contact 16 may be a generally rectangular piece of sheet metal conductive part, called a contact piece 64, extending side by side and in the sense of any diameter of the cage 50, and within the boundaries of this diameter, The contact piece 16 is designed to be vertically downward and has different terminals, one of which is a round terminal 65 and the other terminal is a “U”-shaped folded terminal 66 . The circular terminal 65 and the folded terminal 66 associate themselves respectively to a substantially circular first lateral protrusion 67 and to a drawer-shaped second lateral protrusion 68 . Note that the first lateral protrusion 67 passes through the upper end of the corresponding conductive pin 23 for carrying current up to the resistor 47, while the second lateral protrusion 68 is configured as a further mating blade contact 69 The end of the contact 69 is coupled to the other conductive pin 23 to equally energize the resistor 47 . Alternatively, the folded terminal 66 and mating contact 69 may be formed from a single piece.

The floating end of the blade contact 64 has a conventional wafer 70 of expensive conductive material such as silver, which is also present on the stationary contact 17 . These tabs 70 are axially aligned so that when the moving contact 16 is moved against the stationary contact 17 , the tabs can close the circuit powering the resistor 47 .

The fixed contact 17 presents an "L" shape, on which the terminal of the supply line 18 has been soldered on the horizontal part of the fixed contact, while leading vertically downwards the edge 71 of the part or rear for fitting and fixing in the presence of the retaining In the drawer-shaped protrusion in the shelf 50, and aligned with the second protrusion 73 present in the body 1 above the fitting, this protrusion, together with the cover 11, serves as a press for the wires 18, 19 (press- wire). Alternatively, the fixed contact 17 has only a horizontal surface, without a downwardly leading rear end, wherein the fixing of the fixed contact 17 can take place by interference and by means of association by soldering the supply line 18 .

Thus, it has been seen that the functional arrangement of the mobile contact 16 for the complete drive system profoundly changes its functional principle in order to achieve a simplified and more efficient work, namely that the plates or sheet-like parts 64 are arranged Like a seesaw, with a corresponding pin 57 of the plunger 60 as a raised ridge, the up and down movement of the pin 57 causes the tab 64 to move against the fixed contact 17 , making or breaking the current to the heating resistor device 8 . Note that the effect produced by the plunger 58 remains in close proximity to the floating end of the moving contact 16, the end of which is anchored to the cage 50, creating a force for quick closing and opening of the contact. The large spring effect also avoids unwanted effects, especially sparks and arc grooves.

This construction is absolutely different from those offered by the prior art and allows a simpler construction of the device in which a conventional power supply line 18 is used instead of a flexible cord, in addition to a simpler assembly of the power supply line 18 (sufficient to pass through the conventional power supply line 18). welding), also helps to reduce costs.

It is worth reminding that in the prior art, due to the need to drag the weight of the power supply line, the movement is not only slow, but also linear, which in fact facilitates the appearance of arc grooves.

Thus, unlike the prior art, it is noteworthy that the movement speed of the moving contact 16 towards the fixed contact 17 of the present invention is significantly faster. This fact arises for two reasons. On the one hand, the moving contact 16 is no longer connected to the power supply line 18 since this wire is not directly connected to the stationary contact 17 . This solution results in that the moving contact 16 does not drag the weight of the supply line and, naturally, a faster movement is ensured due to the fact that less mass is moved. On the other hand, as this can be observed from FIGS. 11 and 18 , the cylindrical pin 57 touches the lower surface of the moving contact 16 in its substantial medium portion, which allows the movement speed of the tip of the moving contact 16 to be effectively high. At one of the contact points (the end where the tablet 70 appears).

It is also mentioned that this modification will lead to fewer arc grooves, resulting in less heat dissipation requirements, which allows the use of thinner lamps 63 in the contacts 16, 17, resulting in even thinner light fixture. The reduction in the occurrence of arc grooves allows the tablet 70 to have an excellent service life, which directly contributes to the service life of the electric shower. Finally, since the device is allowed to move with less weight, the device requires less power, resulting in less water flow being required for the engagement of the contacts 16,17.

Once the circuit is closed, the current passes through the moving contact 16 connected to the conductive pin 23 , which runs perpendicularly through the partition wall 13 , below which the conductive pin 23 comes into contact with the heating resistor contact 8 . As a result, hydraulic pressure occurs, the electrical contacts 16 , 17 close, and the passage of electrical current to the heating resistor 8 is established. This operating state is maintained while there is pressure in the interior of the pressure flow chamber 20 and is otherwise prevented.

Thus, it becomes clear that all the problems posed by the prior art with regard to closed circuits can be overcome by the solution found by the present invention.

Furthermore, the electric shower according to the invention has an innovative consumption concept for the consumption level of the leakage current. As shown in Figures 18 and 19, the use of metal conductors has been eliminated inside the device, which have been replaced by polymer conductors 74, resulting in significant advantages in the manufacture of the device.

In detail, an external ground wire 19 of a conventional type is inserted into the interior of the dry chamber 10 together with the power supply wire 18 . After passing through the crimp, the external ground wire 19 has an end that can be connected to the polymer conductor 74 .

This polymer 74 extends to the central part of the partition wall 13, and from this point downwards, the polymer is surrounded by a tubular protrusion 75 which develops itself concentrically in the interior of the siphon 12, the polymerization involved The material 74 terminates behind the interior of the siphon 12 and leaves its end exposed in the upper part of the lower chamber of the dispenser 4 . The polymer conductor 74 is preferably a polymer material with conductive charge (ie capable of allowing the charge to pass through), preferably a polymer material such that it has the desired characteristics for collecting the eventual power and its dissipation up to the external ground 19 . Note that, as in the prior art, the polymer conductor 74 remains in contact with the water at two different moments, the moment of entry shortly after the fitting 2 and the moment of entry in the lower chamber 7 .

A major advantage of the polymer conductor 74 occurs due to the fact that this material is double injected together with the body 1 of the electric shower. In this way, besides a large number of improvements in the industrial process, a cost reduction is obtained due to the fact that one stage is removed from the assembly, where this configuration has achieved a ready assembly line.

FIGS. 7 and 8 show two exploded perspective views of an example of a subassembly for a device constituting the components for quick replacement of the resistance device 8 .

This replacement allows to perform without the resistance device 8 being touched by the user before it is completely removed from the interior of the shower, in only one stage by a simple detachment of the shower 4 of the body 1, thus leaving the resistance device 8 exposed to manipulate only one device to perform the operation. Once the resistive device 8 is exposed, removal of the resistive device and replacement by another resistive device can be carried out without any risk.

Therefore, in order to facilitate said operations, the different construction details defined by the pre-assembled device 24 (see FIGS. 7 and 8 ) are produced. The pre-assembled device 24 is constituted by the shower 4 , the separating element 5 and the heating resistance device 8 , forming a removable unit whose coupling with the body 1 is performed manually by the interaction of the associated member 3 .

As shown by Figures 9 to 12, it is noted that the main external hilt piece is the shower head itself, preferably but not mandatory, the shower head has a general hemispherical shape, where the shower head has a A common outlet 25 for water in the form of rain and an auxiliary outlet 26 for a small hand shower (not shown). The upper edge of the shower 4 has an internal thread 28 present in the body 1 , thus allowing the association between the two parts 1 , 4 .

In one possible constructional configuration, the shower 4 has a concentric inner wall 29 , the upper edge of which is assigned an extension of this type of locking tooth 30 , on which the outer diameter of the partition element 5 fits. In turn, the separating element 5 presents an inverted "U"-shaped cross-sectional female edge 31 with raised points 32 for engaging locking teeth 30 . In the aforementioned female edge, it is also doubly injected with an elastomeric sealing ring 33 held in compression by a substantially conical wall 34 of the lower part of the body 1 .

As shown by FIGS. 13 and 14 , there is a generally tubular vertical protrusion 35 with an internal restrictor 36 around the siphon 12 on the separating element 5 , wherein the siphon 12 has radial protrusions configured to fit Detents 37 , elements 35 , 37 of this type are formed as stably fitting components for the heating resistor arrangement 8 .

Figures 15, 16 and 17 show the resistance device having a cage support 38 with a grate defined by a central tube 39 having a diameter adapted to fit loosely in the siphon 12, Rotational and longitudinal sealing occurs at the central tube, since the central tube 39 involved has a lateral fit defined by a cutout 40 combined by a pair of handles 41, one of which is radial and the other is Axially, the cooperating bayonet 37 passes through the cutout to facilitate a lighter locking of the resistance device 8 , the cage support 38 also has a spike 42 arranged in its lower part for penetrating into the spacer element 5 concerned. The vertical protrusions 35 result in a lighter fixation between the parts.

Note that the central annular tube 39 includes a radial protrusion 43 which terminates in a circular bracket and ends in a segment in a half cane 44, forming an annulus with an upper protrusion 45 , the upper protrusion 45 matches itself with the additional protrusion 46 shaped as pliers for fitting and fixing the resistor 47 .

The resistor 47 has the shape of a conventional helical spring, wherein it is preferred but not mandatory that the contacts are fixed in the shape of a leaf spring 48 in the outer part of the resistor and in the middle part of the resistor, the contacts all similarly having a rectilinear bottom, and cooperate to engage the additional protrusion 46 , while the upper end of the arcuate contact 49 is provided with an arc for sliding and adjusting against the lower end of the conductive pin 23 with a certain pressure.

As shown in detail "A" in Figure 15, the arcuate contact 49 of the resistor 47 can bring itself tangentially close to the pin 23, while in detail "B" the approach is axial, where in both cases Below, jobs have the same function.

As may be noted, the improvements introduced into the shower of the invention confirm the aforementioned advantages, allowing the system to easily replace the resistance 47, since the resistance 47 is part of the pre-assembly 24 included in the shower 4 Inside the separating element 5 and the heating resistor device 8 . In this case, all these means are coupled to and decoupled from the body by means of the associated member 3 , by prefabricated threads 27 , 28 in the two parts 1 , 4 . Thus, by removing the pre-assembled sub-assembly 24, the heating resistor assembly 8 is exposed in such a way that it is easy to remove the heating resistor by detaching the vertically protruding pole 42 and the cooperating detent 37 and handle 41 of the cutout 40. device 8. Once this is done, the support holder 38 and its resistor 47 are released to replace the resistor device 8 .

Alternatively, the resistor 47 can be replaced with the same support cage 38 .

Note that removing the pre-assembled subassembly 24 allows the resistor 47 to be disengaged from the circuit before being exposed. Therefore, the security provided by this device is unique when compared to the prior art. Therefore, since the handle is exposed, it is impossible for the user to "get out of the way". The security provided is such that the change of replacement of the resistance 47 can be performed even in the case where the user forgets to switch off the circuit breaker or equivalent power supply of the shower.

Thus, the system of easy replacement of the resistor 47 does not allow the user to access the live parts of the resistor 47 without detaching the resistor 47 from the internal circuit of the shower.

On the other hand, the same situation occurs when replacing the pre-assembled sub-assembly 24 in the shower (i.e. during the cock shower 4 in the body 1), the arcuate contact 49 of the resistance 47 gradually approaches the pin 23 where it ends at the cock , the spring effect of the arcuate contact 49 ensures electrical connection of the resistor 47 to the pin 23, leaving the shower ready for operation.

Note that the technical solution provided by the present invention has been applied in any type of electric shower, independent of the design of the electric shower, and without any damage to the device.

Having described a preferred example of specific embodiment, it must be understood that the scope of the invention encompasses other possible variants, which are defined solely by the words of the appended claims, possible variants being included therein.

Claims (10)

1. electric shower-bath, it comprises at least one moving contacting piece (16), at least one fixed contact therefor (17), article at least two, supply lines (18), a resistance (47) and an acting device (15) that operates by means of the opening and closing of current, it is characterized in that, described supply lines (18) is associated to described fixed contact therefor (17), described moving contacting piece (16) is placed in the appropriate location of described fixed contact therefor (17) below, the described acting device of the open operation of wherein said current (15) is against described moving contacting piece (16), described moving contacting piece (16) is mobile against described fixed contact therefor (17), is used for to described resistance (47) for induced current.

2. electric shower-bath according to claim 1 is characterized in that, described supply lines (18) is associated to described fixed contact therefor (17) by the normal welding mode.

3. electric shower-bath according to claim 1, it is characterized in that, described acting device (15) comprises at least one pin (57), described pin (57) can arrive the inner surface of described moving contacting piece (16) in the approximate centre part, described pin (57) is associated to plunger (58), and described plunger (58) is associated to spacer ring (60).

4. electric shower-bath, it comprises the element of collecting and consuming leakage current, it is characterized in that, described element is polymer conductor (74).

5. electric shower-bath according to claim 4 is characterized in that, described polymer conductor (74) is double implantation in described body (1).

According to claim 4 with electric shower-bath claimed in claim 5, it is characterized in that, described polymer conductor (74) is associated to outside ground wire (19) in described body (1), described outside ground wire (19) stretches out from described body (1).

7. according to claim 4 to electric shower-bath claimed in claim 6, it is characterized in that, described polymer conductor (74) is the polypropylene with conduct charges.

8. electric shower-bath, it comprises the gondola water faucet (4) of resistance (47) and the bottom that is associated to body (1) by related member (3), it is characterized in that, described resistance (47) is associated to resistance device (8), described resistance device (8) jointly is associated to described gondola water faucet (4) by means of separating element (5), and the simple separation between described gondola water faucet (4) and the described body (1) is allowed directly near described resistance (47).

9. electric shower-bath according to claim 8 is characterized in that, described separating element (5) can promote the sealing between lower chambers (7) and the residing upper chamber of described resistance (47) (6).

According to claim 8 with the described electric shower-bath of claim 9, it is characterized in that, described electric shower-bath allows to change described resistance (47) in a stage.

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