WO2024001129A1 - Magnesium rod assembly, water heater liner and water heater - Google Patents

Abstract

The present application presents a magnesium rod assembly, a water heater liner and a water heater. The magnesium rod assembly comprises a magnesium rod body and a covering member, the covering member being arranged on the magnesium rod body and covering a part of an outer surface of the magnesium rod body. The magnesium rod assembly of the present application can solve the problem of short service life of magnesium rods in the prior art.

Description

Magnesium rod components, water heater liner and water heater

Related applications

This application claims priority to Chinese patent applications filed on June 28, 2022 with application numbers 202210747257.8, 202221655611.6, 202222874742.X, 202221655697.2 and 202221655638.5.

Technical field

The present application relates to the technical field of water heaters, and in particular to a magnesium rod assembly, a water heater liner and a water heater.

Background technique

When existing water heaters are in use, magnesium rods are usually used to protect the inner tank of the water heater to prevent corrosive ions in the water from corroding the inner tank of the water heater. However, the existing magnesium rods are exposed to water for a long time during use, causing the magnesium rods to wear out too quickly and the magnesium rods have a short service life. That is, there is a problem of short service life of magnesium rods in the prior art.

Application content

The main purpose of this application is to provide a magnesium rod assembly, a water heater liner and a water heater, aiming to solve the problem of short service life of magnesium rods in the prior art.

In order to achieve the above purpose, this application proposes a magnesium rod assembly, which is applied to the inner tank of the water heater, including:

Magnesium rod body; and

A cover is provided on the magnesium rod body and covers part of the outer surface of the magnesium rod body.

In one embodiment, the outer surface of the magnesium rod body is provided with a recess, and the cover is disposed in the recess to cover part of the outer surface of the magnesium rod body.

In one embodiment, the magnesium rod body has a connecting end and a free end opposite to each other along its axial direction, and the covering member is attached to the free end of the magnesium rod body to cover the free end of the magnesium rod body. The outer surface.

In one embodiment, the recess includes a cavity extending along the axial direction of the magnesium rod body, and the cavity penetrates the magnesium rod body along the radial direction of the magnesium rod body; the cover includes A first covering body filled in the cavity.

In one embodiment, the recess further includes a channel provided on the outer peripheral wall of the magnesium rod body, and the channel communicates with the cavity; the cover further includes a third material filled in the channel. Two covering bodies, the second covering body is connected to the first covering body.

In one embodiment, the channel includes a plurality of first grooves, and the plurality of first grooves are arranged at intervals along the axial direction of the magnesium rod body on the outer peripheral wall of the magnesium rod body, Each first groove is annularly arranged along the circumferential direction of the magnesium rod body and communicates with the cavity; the second covering body includes a plurality of first grooves corresponding to a plurality of first grooves. A first covering strip is connected to the first covering body.

In one embodiment, the channel further includes a second groove provided on the outer peripheral wall of the magnesium rod body. The second groove extends along the axial direction of the magnesium rod body and is connected with the said magnesium rod body. The first grooves are connected; the second covering body further includes a second covering strip corresponding to the second groove, and the second covering strip is connected to the first covering strip.

In one embodiment, the recess includes a plurality of first grooves, and the plurality of first grooves are arranged at intervals along the circumferential direction of the magnesium rod body on the outer peripheral wall of the magnesium rod body. One of the first grooves extends along the axial direction of the magnesium rod body; the cover includes a plurality of first covering sections corresponding to a plurality of the first grooves.

In one embodiment, the recess further includes a plurality of second grooves, and the plurality of second grooves are arranged at intervals along the axial direction of the magnesium rod body on the outer peripheral wall of the magnesium rod body, Each of the second grooves is annularly arranged along the circumferential direction of the magnesium rod body; the cover further includes a plurality of second covering sections corresponding to the plurality of second grooves.

In one embodiment, a concave hole is provided on the end wall of the free end of the magnesium rod body, and the covering member includes a covering plate and a covering column provided on one side of the covering plate, and the covering column is filled in the In the recessed hole, the covering plate covers the outer surface of the free end of the magnesium rod body.

In one embodiment, the magnesium rod assembly further includes a first conductive member, a resistor and a second conductive member. The magnesium rod body has a connecting end and a free end opposite to each other along its axial direction. Part of the first conductive member The magnesium rod body, the first conductive member, the resistor and the second conductive member are connected in sequence.

In one embodiment, the magnesium rod assembly further includes a fixing member wrapped around another part of the outer surface of the first conductive member, the resistor and part of the second conductive member, and the other part of the The second conductive member is provided outside the fixing member; and/or,

The connecting end of the magnesium rod body is provided with a boss, part of the first conductive member is provided in the boss, and the fixing member is wrapped around the outer surface of the boss.

In one embodiment, the fixing member is an insulating member, and the fixing member, the first conductive member, the resistor and the second conductive member are an integral structure; and/or,

The covering member is an insulating member, one end of the covering member is connected to one end of the fixing member, and the covering member and the fixing member are integrally injection molded.

In one embodiment, the cover is detachably provided on the magnesium rod body; and/or,

The cover has an annular mesh structure.

In one embodiment, the cover is made of silicone material, and is placed on the magnesium rod body and attached to the recess; or

The cover includes a first insulating bracket and a second insulating bracket. The first insulating bracket and the second insulating bracket are enclosed to form an annular grid structure. The first insulating bracket and the second insulating bracket Detachably connected, the first insulating bracket is attached to part of the recess, and the second insulating bracket is attached to another part of the recess to cover part of the outer surface of the magnesium rod body.

In order to achieve the above purpose, this application also proposes a magnesium rod assembly, which is applied to the inner tank of the water heater, including:

A magnesium rod body made of rare earth magnesium alloy material; and

A cover is provided on the magnesium rod body and covers part of the outer surface of the magnesium rod body.

In one embodiment, the magnesium rod assembly further includes a first conductive member, a resistor and a second conductive member. The magnesium rod body has a connecting end and a free end opposite to each other along its axial direction. Part of the first conductive member The magnesium rod body, the first conductive member, the resistor and the second conductive member are connected in sequence.

In one embodiment, the cover is detachably provided on the magnesium rod body.

This application also proposes a water heater inner tank, which includes the magnesium rod assembly as described above. The magnesium rod assembly includes a magnesium rod body and a covering member. The covering member is provided on the magnesium rod body and covers part of the outer surface of the magnesium rod body.

This application also proposes a water heater. The water heater includes a water heater liner as described above. The water heater liner includes a magnesium rod assembly as described above. The magnesium rod assembly includes a magnesium rod body and a cover. The cover is provided with on the magnesium rod body and covering part of the outer surface of the magnesium rod body.

The magnesium rod assembly of the present application includes a magnesium rod body and a cover. The cover is located on the magnesium rod body and covers part of the outer surface of the magnesium rod body. With this arrangement, when the magnesium rod assembly is located in the inner tank of the water heater, it faces the inner tank of the water heater. When performing anti-corrosion protection, since the cover covers part of the outer surface of the magnesium rod body, the cover can isolate water from contact with part of the outer surface of the magnesium rod body when the magnesium rod assembly is initially consumed. That is, the cover reduces the contact between the magnesium rod body and the magnesium rod body. The surface area in contact with water reduces the reaction area between the magnesium rod body and water contact ionization, which can slow down the consumption rate of the magnesium rod body, thus achieving the effect of extending the service life of the magnesium rod body. It can be seen that the magnesium rod assembly of the present application can solve the problem of short service life of magnesium rods in the prior art.

Description of drawings

In order to explain the embodiments of the present application or the technical solutions in the prior art more clearly, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are only These are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on the structures shown in these drawings without exerting creative efforts.

Figure 1 is a schematic structural diagram of the first embodiment of the magnesium rod assembly of the present application;

Figure 2 is a schematic structural diagram of the structure in Figure 1 after decomposition;

Figure 3 is an enlarged view of point A in Figure 2;

Figure 4 is a schematic structural diagram of the second embodiment of the magnesium rod assembly of the present application;

Figure 5 is a schematic structural diagram of the structure in Figure 4 after decomposition;

Figure 6 is an enlarged view of B in Figure 5;

Figure 7 is a schematic structural diagram of the third embodiment of the magnesium rod assembly of the present application;

Figure 8 is a schematic structural diagram of the structure in Figure 7 after decomposition;

Figure 9 is an enlarged view of C in Figure 8;

Figure 10 is a schematic structural diagram of the fourth embodiment of the magnesium rod assembly of the present application;

Figure 11 is a schematic structural diagram of the structure in Figure 10 after decomposition;

Figure 12 is an enlarged view of D in Figure 11;

Figure 13 is a schematic structural diagram of the fifth embodiment of the magnesium rod assembly of the present application;

Figure 14 is a schematic structural diagram of the structure in Figure 13 after decomposition;

Figure 15 is a schematic structural diagram of the sixth embodiment of the magnesium rod assembly of the present application;

Figure 16 is a schematic structural diagram of the structure in Figure 15 after decomposition;

Figure 17 is an enlarged view of E in Figure 16;

Figure 18 is a schematic structural diagram of the seventh embodiment of the magnesium rod assembly of the present application;

Figure 19 is a schematic structural diagram of the structure in Figure 18 after decomposition;

Figure 20 is an enlarged view of F in Figure 19;

Figure 21 is a schematic structural diagram of the eighth embodiment of the magnesium rod assembly of the present application;

Figure 22 is a schematic structural diagram of the structure in Figure 21 after decomposition;

Figure 23 is a schematic structural diagram of the structure in Figure 22 from another perspective;

Figure 24 is an enlarged view of G in Figure 23;

Figure 25 is a schematic structural diagram of the ninth embodiment of the magnesium rod assembly of the present application;

Figure 26 is a schematic structural diagram of the structure in Figure 25 after decomposition;

Figure 27 is an enlarged view of H in Figure 26;

Figure 28 is a partial structural schematic diagram of Figure 26;

Figure 29 is a cross-sectional view of the structure in Figure 26;

Figure 30 is an enlarged view of position I in Figure 29;

Figure 31 is a cross-sectional view of the structure in Figure 25;

Figure 32 is a schematic structural diagram of the tenth embodiment of the magnesium rod assembly of the present application;

Figure 33 is a schematic structural diagram of the structure in Figure 32 after decomposition;

Figure 34 is a partial structural schematic diagram of Figure 33;

Figure 35 is a cross-sectional view of the magnesium rod assembly in Figure 32 along its axial direction;

Figure 36 is an exploded structural schematic diagram of part of the structure in Figure 32;

Figure 37 is an enlarged view of J in Figure 36;

Figure 38 is a cross-sectional view of the magnesium rod assembly in Figure 32 along its radial direction;

Figure 39 is a schematic structural diagram of another embodiment of the second insulating bracket in Figure 33;

Figure 40 is an enlarged view of K in Figure 39;

Figure 41 is a cross-sectional view of the second insulating bracket in Figure 39 applied to Figure 32;

Figure 42 is a schematic structural diagram of yet another embodiment of the second insulating bracket in Figure 33;

Figure 43 is an enlarged view of L in Figure 42;

FIG. 44 is a cross-sectional view of the second insulating bracket in FIG. 42 applied to FIG. 32 .

Explanation of reference numbers:

label	name	label		name
100	Magnesium rod body	223	Third coverage article
110	concavity	230	Fourth Coverage Article
111	cavity	240	first coverage section
112	channel	250	Second coverage section
1121	first groove	260	covering board
1122	second groove	270	cover column
1123	third groove	201	First insulation bracket
113	fourth groove	202	Second insulation bracket
114	first trench	203	Hook
115	Second trench	204	card slot
120	concave hole	205	first rod body
130	Boss	206	second rod body
200	Cover	300	first conductive member
210	first covering body	400	resistance
220	second covering body	500	second conductive member
221	first cover	600	Fastener
222	Second coverage article	​	​

The realization of the purpose, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of this application.

It should be noted that if there are directional instructions (such as up, down, left, right, front, back...) in the embodiments of the present application, the directional instructions are only used to explain the position of a certain posture (as shown in the accompanying drawings). The relative positional relationship, movement conditions, etc. between the components under the display). If the specific posture changes, the directional indication will also change accordingly.

In addition, if there are descriptions involving “first”, “second”, etc. in the embodiments of this application, the descriptions of “first”, “second”, etc. are only for descriptive purposes and shall not be understood as indications or implications. Its relative importance or implicit indication of the number of technical features indicated. Therefore, features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In addition, the technical solutions in various embodiments can be combined with each other, but it must be based on the realization by those of ordinary skill in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that such a combination of technical solutions does not exist. , nor is it within the scope of protection required by this application.

This application proposes a magnesium rod assembly, a water heater liner including the magnesium rod assembly, and a water heater including the water heater liner. The magnesium rod assembly of the present application can solve the problem of short service life of magnesium rods in the prior art.

Please refer to the embodiments of Figures 1, 4, 7 and 10. The magnesium rod assembly is applied to the inner tank of the water heater. The magnesium rod assembly includes a magnesium rod body 100 and a cover 200. The cover 200 is provided on the magnesium rod body. 100 and cover part of the outer surface of the magnesium rod body 100 .

It can be understood that the covering member 200 can cover part of the outer surface of the magnesium rod body 100 in various ways. For example, but not limited to, the covering member 200 is set on the outer surface of the magnesium rod body 100. The outer surface is not processed; or, the outer surface of the magnesium rod body 100 is provided with a recess 110, and the cover 200 is disposed in the recess 110 to cover the outer surface of the magnesium rod body 100. The specific manner in which the cover 200 is disposed on the magnesium rod body 100 is not limited, as long as the cover 200 is disposed on the magnesium rod body 100 to reduce the exposed outer surface of the magnesium rod body 100, for example, the cover 200 is made of silicone. The cover 200 is made of plastic material, and the cover 200 is placed on the magnesium rod body 100; or the cover 200 is made of plastic material, and the cover 200 is wrapped around the magnesium rod body 100. It can be understood that the cover 200 reduces the exposed outer surface of the magnesium rod body 100, that is, when the magnesium rod assembly is in use, the cover 200 isolates water from contacting part of the outer surface of the magnesium rod body 100. When the magnesium rod assembly is in use, When the rod assembly is initially used, the cover 200 reduces the surface area of the magnesium rod body 100 in contact with water, that is, reduces the reaction area of the magnesium rod body 100 in contact with water for ionization, thereby reducing the corrosion rate of the magnesium rod body 100 , that is, the initial consumption rate of the magnesium rod body 100 is slowed down, thereby achieving the effect of extending the service life of the magnesium rod body 100 .

In one embodiment, the cover 200 is made of an insulating material, such as but not limited to: silicone, plastic, or ceramics.

The magnesium rod assembly of the present application includes a magnesium rod body 100 and a cover 200. The cover 200 is disposed on the magnesium rod body 100 and covers part of the outer surface of the magnesium rod body 100. With this arrangement, when the magnesium rod assembly is disposed in the inner tank of the water heater When performing anti-corrosion protection on the inner tank of the water heater, since the cover 200 covers part of the outer surface of the magnesium rod body 100, the cover 200 can isolate water from contact with part of the outer surface of the magnesium rod body 100 when the magnesium rod assembly is initially consumed, that is, The cover 200 reduces the surface area of the magnesium rod body 100 in contact with water, that is, reduces the reaction area of the magnesium rod body 100 in contact with water for ionization. This can slow down the consumption rate of the magnesium rod body 100 and thereby extend the magnesium rod body. 100 lifespan effect. It can be seen that the magnesium rod assembly of the present application can solve the problem of short service life of magnesium rods in the prior art.

Please refer to Figure 2. In one embodiment, the outer surface of the magnesium rod body 100 is provided with a recess 110, and the cover 200 is disposed in the recess 110 to cover part of the outer surface of the magnesium rod body 100. .

It can be understood that the magnesium rod body 100 can be formed by casting, and the concave portion 110 on the outer surface of the magnesium rod body 100 can be formed in a variety of ways, such as but not limited to: directly molding the magnesium rod body 100 by casting; The concave portion 110 on the magnesium rod body 100; or, the magnesium rod body 100 is first formed by casting, and then the magnesium rod body 100 is machined, so that the outer wall surface of the magnesium rod body 100 has the concave portion 110.

There are many ways in which the cover 200 can be disposed in the recess 110. For example, but not limited to: the cover 200 is made of silicone material, and the cover 200 is filled in the recess 110; or the cover 200 is an insulating member. The cover 200 is formed in the recess 110 by injection molding to cover part of the outer surface of the magnesium rod body 100; alternatively, the cover 200 is composed of multiple parts, and the multiple parts can be detachably connected, and the cover 200 is assembled. It is clamped in the recess 110 . Of course, the cover 200 can also be a whole body, and the entire cover 200 is clamped in the recess 110 . It can be seen that the way in which the covering member 200 covers part of the outer surface of the magnesium rod body 100 is not limited, as long as the covering member 200 can reduce the surface area of the magnesium rod body 100 exposed to the outside.

In addition, by providing the recess 110 on the outer surface of the magnesium rod body 100, the cover 200 is disposed in the recess 110, so that the cover 200 does not change the overall size of the magnesium rod body 100, for example, does not change the outer diameter and length of the magnesium rod body 100. /Or do not change the length and size of the magnesium rod body 100, thereby not affecting the assembly of the magnesium rod body 100 and the water heater inner tank.

Please refer to Figures 1 to 3. In one embodiment, the recess 110 is provided on the outer peripheral wall of the magnesium rod body 100, and the cover 200 is disposed in the recess 110 to cover the magnesium rod. Part of the outer surface of the peripheral wall of the body 100 .

It can be understood that the cover 200 is disposed in the recess 110, and the outermost surface of the cover 200 can be flush with the outermost surface of the magnesium rod body 100, so that the cover 200 does not exceed the outermost surface of the magnesium rod body 100, That is, the installation of the cover 200 will not affect the overall size of the magnesium rod body 100, so that the outer diameter of the magnesium rod body 100 is the outer diameter of the magnesium rod assembly. When the magnesium rod assembly is installed inside the water heater liner, the cover 200 will not affect the overall size of the magnesium rod body 100. 200 will not affect the installation of the magnesium rod assembly. The magnesium rod assembly of this application can be directly replaced with the existing magnesium rod. Of course, in other embodiments, the outermost surface of the cover 200 can also be lower than the outermost surface of the magnesium rod body 100; or, the outermost surface of the cover 200 can be higher than the outermost surface of the magnesium rod body 100. Specifically, Set according to the actual size of the water heater liner, which is not limited here.

In addition, the surface area of the outer peripheral wall of the magnesium rod body 100 is relatively large. By providing the recess 110 on the outer peripheral wall of the magnesium rod body 100, it is beneficial to increase the coverage area of the cover 200, which in turn is beneficial to reducing the exposure of the magnesium rod body 100. The surface area of the magnesium rod body 100 is conducive to reducing the contact area between the magnesium rod body 100 and water, which can slow down the consumption rate of the magnesium rod body 100 to achieve the effect of extending the service life of the magnesium rod body 100.

Referring to FIGS. 2 and 3 , in one embodiment, the recess 110 includes a cavity 111 extending along the axial direction of the magnesium rod body 100 , and the cavity 111 extends along the diameter of the magnesium rod body 100 . penetrating the magnesium rod body 100; the covering member 200 includes a first covering body 210 filled in the cavity 111.

It can be understood that the cavity 111 penetrates the magnesium rod body 100, and the first covering body 210 is filled in the cavity 111. The two opposite sides of the first covering body 210 along the radial direction of the magnesium rod body 100 are the first covering parts. 200 covers the outer surface of the magnesium rod body 100. That is to say, the area of the two side surfaces of the first covering body 210 that are oppositely arranged along the radial direction of the magnesium rod body 100 is the area of the reduced outer surface of the magnesium rod body 100. In this way, there is It is beneficial to reduce the contact area between the magnesium rod body 100 and water, thereby slowing down the consumption rate of the magnesium rod body 100 to achieve the effect of extending the service life of the magnesium rod body 100.

In one embodiment, the first cover 200 is disposed in the cavity 111, which is also beneficial to enhancing the strength of the magnesium rod body 100 and preventing the magnesium rod body 100 from easily breaking due to corrosion when it is inside the water heater liner, thereby The strength of the magnesium rod body 100 is improved.

In addition, when the outer surface of the magnesium rod body 100 around the first covering member 200 is consumed and corroded, the cavity 111 of the magnesium rod body 100 increases, and the first covering member 200 no longer covers the cavity wall of the cavity 111 of the magnesium rod body 100 , at this time, the magnesium rod body 100 has been protecting the inner tank of the water heater against corrosion for a period of time. As the exposed surface area of the magnesium rod body 100 increases, the surface area of the magnesium rod body 100 in contact with water increases, so that the magnesium rod body 100 It can provide stable and continuous anti-corrosion protection for the inner tank of the water heater.

Please refer to Figures 4 to 6. In one embodiment, the recess 110 further includes a channel 112 provided on the outer peripheral wall of the magnesium rod body 100, and the channel 112 is connected with the cavity 111; The cover 200 further includes a second covering body 220 filled in the channel 112 , and the second covering body 220 is connected to the first covering body 210 .

It can be understood that the outer peripheral wall of the magnesium rod body 100 is provided with a channel 112, and the channel 112 is connected with the cavity 111. The second covering body 220 is filled in the channel 112, thus increasing the coverage of the magnesium rod body 100. The area of the outer surface, that is, the surface area of the magnesium rod body 100 in contact with water is reduced. That is to say, by providing the channel 112, the reaction area of the magnesium rod body 100 in contact with water for ionization is further reduced. In an implementation In this way, the corrosion rate of the magnesium rod body 100 is reduced, thereby increasing the service life of the magnesium rod body 100 .

In addition, the specific structure of the second covering body 220 is not limited, for example but is not limited to: elongated shape, spiral shape, ring shape, circular shape, etc. The second covering body 220 is connected to the first covering body 210, which enhances the strength of the covering member 200. Both the second covering body 220 and the first covering body 210 can support the magnesium rod body 100, preventing the magnesium rod body 100 from being corroded for a period of time. It is easy to break after time, thereby improving the reliability of corroded components.

Please refer to Figures 5 and 6. In one embodiment, the channel 112 includes a plurality of first grooves 1121, and the plurality of first grooves 1121 are on the outer peripheral wall of the magnesium rod body 100. Arranged at intervals along the axial direction of the magnesium rod body 100, each of the first grooves 1121 is annularly arranged along the circumferential direction of the magnesium rod body 100 and communicates with the cavity 111; The second covering body 220 includes a plurality of first covering strips 221 arranged corresponding to the plurality of first grooves 1121 , and the first covering strips 221 are connected to the first covering body 210 .

It can be understood that the first groove 1121 is arranged in an annular shape around the outer peripheral wall of the magnesium rod body 100, and the first covering strips 221 are filled in the first groove 1121, so that the first covering strips 221 are arranged in an annular shape, and a plurality of first covering strips 221 are arranged in an annular shape. The covering strips 221 are all connected to the first covering body 210 , thus enhancing the strength of the covering member 200 and thus providing stable support for the magnesium rod body 100 . The plurality of first grooves 1121 increases the surface area of the channel 112, and the plurality of first covering strips 221 fill the plurality of first grooves 1121, thereby reducing the area of the outer surface of the magnesium rod body 100, thereby enabling The corrosion rate of the magnesium rod body 100 is reduced to achieve the effect of extending the service life of the magnesium rod body 100 .

In addition, when the outer surface of the magnesium rod body 100 around the first covering strip 221 is corroded, the first groove 1121 of the magnesium rod body 100 will increase, and the first covering strip 221 will no longer cover the first groove 1121 of the magnesium rod body 100 . The wall of the tank 1121. At this time, the magnesium rod body 100 has provided anti-corrosion protection to the inner tank of the water heater for a period of time. As the exposed surface area of the magnesium rod body 100 increases, the surface area of the magnesium rod body 100 in contact with water increases. This further enables the magnesium rod body 100 to stably and continuously provide anti-corrosion protection to the inner tank of the water heater.

Please refer to FIGS. 7 to 9 . In one embodiment, the channel 112 further includes a second groove 1122 provided on the outer peripheral wall of the magnesium rod body 100 . The second groove 1122 extends along the magnesium rod body 100 . The rod body 100 extends axially and communicates with the first groove 1121; the second covering body 220 also includes a second covering strip 222 corresponding to the second groove 1122. The covering strip 222 is connected to the first covering strip 221 .

It can be understood that the number of the second groove 1122 may be one, or may be multiple, and is not limited here. The second groove 1122 extends along the axial direction of the magnesium rod body 100 , and the second covering strip 222 is filled in the second groove 1122 , so that the second covering strip 222 extends along the axial direction of the magnesium rod body 100 and is elongated. It is provided that the second covering strip 222 is connected to the first covering strip 221, and the first covering strip 221 is connected to the first covering body 210. This enhances the strength of the covering member 200, thereby providing stable support for the magnesium rod body 100. This prevents the magnesium rod body 100 from easily breaking after being corroded for a period of time.

In this embodiment, there are multiple second grooves 1122 , that is, there are multiple second covering strips 222 , and the plurality of second grooves 1122 are formed along the outer peripheral wall of the magnesium rod body 100 . The magnesium rod body 100 is arranged at intervals in the circumferential direction, and the second grooves 1122 are connected to the plurality of first grooves 1121, so that the second covering strips 222 are connected to the plurality of first covering strips 221, and the plurality of second covering strips 222 are connected to each other. The strips 222 and the plurality of first covering strips 221 are connected to form an annular grid structure, so that the outer surface on the peripheral wall of the magnesium rod body 100 is divided into multiple pieces, which is beneficial to improving the uniformity of the magnesium rod body 100 being corroded by water. This prevents the magnesium rod body 100 from being easily broken due to concentrated corrosion, thereby improving the reliability of the magnesium rod assembly.

In addition, when the outer surface of the magnesium rod body 100 around the second covering strip 222 is corroded, the second groove 1122 of the magnesium rod body 100 will increase, and the second covering strip 222 will no longer cover the second groove of the magnesium rod body 100 . The wall of the tank 1122. At this time, the magnesium rod body 100 has been protecting the inner tank of the water heater from corrosion for a period of time. As the exposed surface area of the magnesium rod body 100 increases, the surface area of the magnesium rod body 100 in contact with water increases. This further enables the magnesium rod body 100 to stably and continuously provide anti-corrosion protection to the inner tank of the water heater.

Please refer to FIGS. 10 to 12 . In one embodiment, the channel 112 further includes a third groove 1123 . The third groove 1123 surrounds the magnesium rod body 100 along the axial direction of the magnesium rod body 100 . The outer peripheral wall of 100 is arranged in a spiral shape, and the third groove 1123 is connected with the cavity 111; the second covering body 220 also includes a third covering strip 223 corresponding to the third groove 1123, The third covering strip 223 is arranged in a spiral shape and connected to the first covering body 210 .

It can be understood that the third groove 1123 is arranged in a spiral shape on the magnesium rod body 100. Correspondingly, the third covering strip 223 is filled in the third groove 1123, and the third covering strip 223 is also arranged in a spiral shape. The three covering strips 223 are connected to the first covering body 210, which enhances the strength of the covering member 200. Both the third covering strips 223 and the first covering body 210 can support the magnesium rod body 100, preventing the magnesium rod body 100 from corroding for a period of time. It is easy to break after the corrosion occurs, thereby improving the reliability of corroded components.

In one embodiment, the third groove 1123 is arranged in a spiral shape on the magnesium rod body 100, and the third covering strip 223 is filled in the third groove 1123, so that the outer surface of the peripheral wall of the magnesium rod body 100 is evenly separated. This is beneficial to improving the uniformity of the magnesium rod body 100 being corroded by water and preventing the magnesium rod body 100 from being easily broken due to concentrated corrosion locations, thus improving the reliability of the magnesium rod assembly.

In addition, when the outer surface of the magnesium rod body 100 around the third covering strip 223 is corroded, the third groove 1123 of the magnesium rod body 100 will increase, and the third covering strip 223 will no longer cover the third groove 1123 of the magnesium rod body 100 . The wall of the tank 1123. At this time, the magnesium rod body 100 has provided anti-corrosion protection to the inner tank of the water heater for a period of time. As the exposed surface area of the magnesium rod body 100 increases, the surface area of the magnesium rod body 100 in contact with water increases. This further enables the magnesium rod body 100 to stably and continuously provide anti-corrosion protection to the inner tank of the water heater.

In one embodiment, the third groove 1123 is connected to the first groove 1121, and the third cover strip 223 is connected to the first cover strip 221; and/or the third groove 1123 is connected to the second groove 1122, and the third cover strip 223 is connected to the first cover strip 221. The third covering strip 223 is connected to the second covering strip 222 . Such an arrangement is beneficial to enhancing the strength of the covering member 200 , thereby enabling the covering member 200 to provide stable support for the magnesium rod body 100 .

Please refer to FIGS. 1 to 3 . In one embodiment, the recess 110 further includes a fourth groove 113 provided on the magnesium rod body 100 , and the fourth groove 113 is provided in the cavity 111 on the side wall; the cover 200 further includes a fourth cover strip 230 disposed corresponding to the fourth groove 113 , and the fourth cover strip 230 is protruding from the outer surface of the first cover body 210 .

It can be understood that the fourth groove 113 penetrates the magnesium rod body 100 in the radial direction of the magnesium rod body 100 , and the fourth covering strip 230 is filled in the fourth groove 113 , thus further reducing the size of the magnesium rod body 100 The surface area of the magnesium rod body 100 is further reduced, which further reduces the contact area between the magnesium rod body 100 and water, which is beneficial to slowing down the consumption rate of the magnesium rod body 100 and extending the service life of the magnesium rod body 100.

In one embodiment, the fourth covering strip 230 is clamped in the fourth groove 113 on the side wall of the cavity 111, and the fourth covering strip 230 is protruding from the outer surface of the first covering body 210, which is beneficial to improve the performance of the first covering body 210. The stability of the first covering body 210 filled in the cavity 111 of the magnesium rod body 100 makes it difficult for the first covering body 210 to fall off from the magnesium rod body 100 .

In addition, when the outer surface of the magnesium rod body 100 around the fourth covering strip 230 is corroded, the fourth groove 113 of the magnesium rod body 100 increases, and the fourth covering strip 230 no longer covers the fourth groove of the magnesium rod body 100 113 of the tank wall. At this time, the magnesium rod body 100 has been protecting the inner tank of the water heater from corrosion for a period of time. As the exposed surface area of the magnesium rod body 100 increases, the surface area of the magnesium rod body 100 in contact with water increases. Further, This enables the magnesium rod body 100 to stably and continuously provide anti-corrosion protection to the inner tank of the water heater.

Please refer to the embodiment of FIGS. 13 to 16 , the recess 110 includes a plurality of first grooves 114 , and the plurality of first grooves 114 are formed along the outer peripheral wall of the magnesium rod body 100 along the length of the magnesium rod. The body 100 is arranged at intervals in the circumferential direction, and each first groove 114 extends along the axial direction of the magnesium rod body 100; the cover 200 includes a plurality of first grooves 114 corresponding to a plurality of first covering segments 240.

It can be understood that the plurality of first covering segments 240 are correspondingly filled in the plurality of first trenches 114. By providing the first covering segments 240 to fill the first trenches 114, the area of the outer surface of the magnesium rod body 100 can be reduced. , which is conducive to reducing the contact area between the magnesium rod body 100 and water, that is, it is conducive to reducing the reaction area of ionization between the magnesium rod body 100 and water, thereby slowing down the consumption rate of the magnesium rod body 100 to extend the magnesium rod. The effect of the body's 100-year service life.

Please refer to the embodiment of FIGS. 16 to 19 , the recess 110 further includes a plurality of second grooves 115 , and the plurality of second grooves 115 are formed on the outer peripheral wall of the magnesium rod body 100 along the magnesium rod body 100 . The rod body 100 is arranged at intervals in the axial direction, and each second groove 115 is annularly arranged along the circumferential direction of the magnesium rod body 100; the cover 200 also includes a plurality of second grooves. 115 corresponds to a plurality of second covering segments 250 provided.

It can be understood that the second groove 115 may be connected to the first groove 114, or may not be connected. Correspondingly, the second covering segment 250 may be arranged in an annular shape and connected with the first covering segment. 240. Of course, the second covering section 250 can also be arranged in an annular shape and spaced apart from the first covering section 240, which is not limited here.

In this embodiment, the second groove 115 is arranged in an annular shape on the magnesium rod body 100, and the second covering section 250 is arranged in the second groove 115. The second covering section 250 is also arranged in an annular shape. The second covering section 250 Connected to a plurality of first covering segments 240 so that the covering member 200 forms an integral structure, thereby enhancing the strength of the covering member 200. Both the second covering segments 250 and the first covering segments 240 can support the magnesium rod body 100, This prevents the magnesium rod body 100 from easily breaking after being corroded for a period of time, thereby improving the reliability of the corroded component.

In one embodiment, there are multiple first grooves 114 and multiple second grooves 115 , and the multiple second grooves 115 are sequentially spaced along the axial direction of the magnesium rod body 100 on the outer peripheral wall of the magnesium rod body 100 Arranged, the second groove 115 is connected with the plurality of first grooves 114, so that the second covering section 250 is connected with the plurality of first covering sections 240, and the plurality of first covering sections 240 and the plurality of second covering sections are 250 are connected to form an annular mesh structure, so that the outer surface on the peripheral wall of the magnesium rod body 100 is divided into multiple pieces, which is beneficial to improving the uniformity of the magnesium rod body 100 being corroded by water and avoiding corrosion of the magnesium rod body 100 The locations are concentrated and easy to break, thereby improving the reliability of the magnesium rod assembly.

In one embodiment, the depth of the first trench 114 is less than or greater than the depth of the second trench 115 . This arrangement creates a height difference between the bottom of the first groove 114 and the bottom of the second groove 115. When the magnesium rod body 100 is consumed to the first groove 114 and the second groove 115, this At this time, the magnesium rod body 100 has been protecting the inner tank of the water heater from corrosion for a period of time. Due to the different depths between the first groove 114 and the second groove 115, it is beneficial to increase the surface area of the magnesium rod body 100. That is, at this time, the magnesium rod body 100 The surface area of the rod body 100 that is in contact with water is large, so that the magnesium rod body 100 can stably and continuously provide anti-corrosion protection to the inner tank of the water heater.

Referring to the embodiment of FIGS. 16 to 19 , the magnesium rod body 100 has a connecting end and a free end opposite to each other along its axial direction, and the cover 200 is attached to the free end of the magnesium rod body 100 to Cover the outer surface of the free end of the magnesium rod body 100 .

It can be understood that the connecting end of the magnesium rod body 100 is used to connect with a conductive member, and the conductive member may be a screw. The screw is provided to facilitate the installation of the magnesium rod assembly in the inner tank of the water heater. The cover 200 is attached to the free end of the magnesium rod body 100, that is, the cover 200 can also cover the end of the magnesium rod body 100, which can reduce the surface area of the end of the magnesium rod body 100 in contact with water, that is, it can Reducing the reaction area between the magnesium rod body 100 and water contact ionization is beneficial to reducing the corrosion rate of the magnesium rod body 100, that is, it is beneficial to slow down the initial consumption rate of the magnesium rod body 100, thereby extending the service life of the magnesium rod body 100. Effect.

Please refer to Figures 21 to 24. In one embodiment, a concave hole 120 is provided on the end wall of the free end of the magnesium rod body 100. The cover 200 includes a cover plate 260 and a hole 120 provided on the cover plate 260. The covering pillar 270 on the side is filled in the concave hole 120 , and the covering plate 260 covers the outer surface of the free end of the magnesium rod body 100 .

It can be understood that the recessed hole 120 is provided on the end wall of the magnesium rod body 100, which can reduce the volume of the magnesium rod body 100, thereby helping to slow down the self-corrosion efficiency of the magnesium rod body 100. Moreover, when the magnesium rod body 100 is consumed and corroded around the outer surface of the covering plate 260, the magnesium rod body 100 will be consumed and corroded around the outer surface of the covering pillar 270, so that the concave hole 120 is enlarged. At this time, the covering pillar 270 no longer covers The groove wall of the recessed hole 120 of the magnesium rod body 100. The magnesium rod body 100 has provided anti-corrosion protection for the water heater liner for a period of time. As the magnesium rod body 100 at the recessed hole 120 is consumed, the recessed hole 120 of the magnesium rod body 100 The exposed surface area increases, and the surface area of the magnesium rod body 100 in contact with water increases, so that the magnesium rod body 100 can stably and continuously provide anti-corrosion protection to the inner tank of the water heater.

In one embodiment, the cover plate 260 is connected to a plurality of first cover segments 240 . This arrangement allows the plurality of first covering sections 240 to be disposed on the same side of the covering plate 260 and the covering plate 260 and the plurality of first covering sections 240 form an integral body, which is beneficial to enhancing the strength of the covering member 200 so that the covering member 200 It can provide stable support to the magnesium rod body 100 and prevent the magnesium rod body 100 from easily breaking after corroding for a period of time, thereby improving the reliability of the corroded component.

Referring to the embodiments of Figures 18 to 20, the embodiments of Figures 29 and 30, and the embodiment of Figure 35, the magnesium rod assembly also includes a first conductive member 300, a resistor 400 and a second conductive member 500, The magnesium rod body 100 has a connecting end and a free end opposite to each other along its axial direction. Part of the first conductive member 300 is disposed in the connecting end, and another part of the first conductive member 300 is disposed in the connecting end. In addition, the magnesium rod body 100, the first conductive member 300, the resistor 400 and the second conductive member 500 are connected in sequence.

It can be understood that the magnesium rod body 100, the first conductive member 300, the resistor 400 and the second conductive member 500 are connected in sequence to form a series structure. Such arrangement increases the resistance 400 of the magnesium rod body 100, thereby reducing the resistance of the magnesium rod body. The current intensity of the reaction between the magnesium rod body 100 and the corrosive ions in the water slows down the corrosion rate of the magnesium rod body 100, thereby extending the service life of the magnesium rod body 100. In addition, the resistance value of the resistor can be set according to actual needs, and is not limited here. In one embodiment, the resistance of the resistor is not less than 100 ohms and not greater than 200 ohms, such as 100 ohms, or 150 ohms, or 200 ohms, etc.

In one embodiment, both the first conductive member 300 and the second conductive member 500 may be screws. The screws are provided to facilitate the assembly and installation of the magnesium rod assembly in the inner tank of the water heater, which is beneficial to improving the installation efficiency of the magnesium rod assembly. Of course, the first conductive member 300 and the second conductive member 500 can also be metal rods or other conductive rods, which are not limited here.

In one embodiment, one end of the resistor 400 can be wound around the first conductive component 300 through a first wire, and the first wire can be fixedly connected to the first conductive component 300 by spot welding; the other end of the resistor 400 can be through The second wire is wound around the second conductive member 500, and the second wire may be fixedly connected to the second conductive member 500 by spot welding. Such arrangement enables the resistor 400 to be stably connected to the first conductive member 300 and the second conductive member 500, thereby improving the reliability of the magnesium rod assembly.

It can be understood that the first conductive member 300 and the second conductive member 500 may not be screws. For example, in one embodiment, an end of the first conductive member 300 close to the resistor 400 is provided with a mounting part, and the mounting part is For mounting the first wire, the mounting portion can be a convex portion, a concave portion, or a mounting hole. The details are not limited here, as long as the mounting portion can facilitate the connection between one end of the resistor 400 and the first conductive member 300 . Correspondingly, the second conductive member 500 is also provided with a mounting portion at one end close to the resistor 400. The mounting portion is used for mounting the second wire. The mounting portion can be a convex portion, a concave portion, or a mounting hole. Specifically, This is not limited, as long as the mounting portion can facilitate the connection between one end of the resistor 400 and the second conductive member 500 .

In one embodiment, the first conductive member 300 and the second conductive member 500 are made of Q235A or 45# steel. With this arrangement, the first conductive member 300 and the second conductive member 500 have better conductivity.

Please refer to the embodiments of Figs. 18 to 20, the embodiments of Figs. 29 and 30, and the embodiment of Fig. 35. In the embodiment of Fig. 35, the magnesium rod assembly further includes a fixing member 600, and the fixing member 600 is wrapped in another part. The outer surface of the first conductive member 300 , the resistor 400 and part of the second conductive member 500 , and the other part of the second conductive member 500 is provided outside the fixing member 600 .

It can be understood that the fixing part 600 is made of insulating materials, including but not limited to: silicone parts, or plastic parts, etc. The first conductive member 300, the resistor 400 and the second conductive member 500 are wrapped together using the fixing member 600, so that the end of the resistor 400 is not easily disconnected from the first conductive member 300 and/or the second conductive member 500, thereby ensuring The stability of the connection between the resistor 400 and the magnesium rod body 100 enables the resistor 400 to slow down the corrosion rate of the magnesium rod body 100, thereby extending the service life of the magnesium rod body 100.

Please refer to the embodiments of Figures 28 to 30, as well as the embodiments of Figures 34 and 35. The connection end of the magnesium rod body 100 is provided with a boss 130, and part of the first conductive member 300 is provided on the boss. 130 , the fixing member 600 is wrapped around the outer surface of the boss 130 . With this arrangement, the magnesium rod body 100 and the fixing piece 600 are connected together, and the boss 130 is conducive to improving the connection strength between the magnesium rod body 100 and the fixing piece 600, thereby improving the stability of the connection between the resistor 400 and the magnesium rod body 100. , thereby ensuring that the resistor 400 can slow down the corrosion rate of the magnesium rod body 100, so as to achieve the effect of extending the service life of the magnesium rod body 100.

Please refer to the embodiments of FIGS. 18 to 20 , the embodiments of FIGS. 29 and 30 , and the embodiment of FIG. 35 . In the embodiment of FIG. 35 , the fixing part 600 is an insulating part, and the fixing part 600 and the first conductive part 300 The resistor 400 and the second conductive member 500 are of an integrated structure, and the fixing member 600, the first conductive member 300, the resistor 400 and the second conductive member 500 are connected by one-time injection molding.

It can be understood that the fixing member 600 can be made of plastic material. The fixing member 600 uses an injection molding process to wrap the first conductive member 300, the resistor 400 and the second conductive member 500 together, wherein one end of the second conductive member 500 is provided with on the outside of the fixing member 600 to facilitate the installation of the magnesium rod assembly on the inner tank of the water heater. Such arrangement ensures the stability of the connection between the resistor 400 and the first conductive member 300 and the second conductive member 500. The end of the resistor 400 is not easily disconnected from the first conductive member 300 and/or the second conductive member 500, so that the resistor 400 It can be stably connected and conducted with the magnesium rod body 100, thereby ensuring that the resistor 400 can slow down the corrosion rate of the magnesium rod body 100, so as to achieve the effect of extending the service life of the magnesium rod body 100.

Please refer to the embodiments of Figures 1 and 2, the embodiments of Figures 4 and 5, the embodiments of Figures 7 and 8, the embodiments of Figures 10 and 11, the embodiments of Figures 13 and 14, Figures 15 and In the embodiment of Fig. 16, the embodiment of Figs. 18 and 19, and the embodiment of Figs. 21 to 23, the cover 200 is an insulating member, and one end of the cover 200 is connected to one end of the fixing member 600. The cover part 200 and the fixing part 600 are integrally injection molded.

It can be understood that both the cover part 200 and the fixing part 600 can be plastic parts, that is, both the cover part 200 and the fixing part 600 can be made by injection molding process. The cover part 200 and the fixing part 600 can be injection molded in one piece or separately. Injection molding. In this embodiment, the covering member 200 and the fixing member 600 are made by integral injection molding, which simplifies the manufacturing process of the magnesium rod assembly and helps save the manufacturing time and production cost of the magnesium rod assembly.

Please refer to the embodiments of FIGS. 25 to 27 and the embodiments of FIGS. 32 and 33 , the cover 200 is detachably provided on the magnesium rod body 100 . It can be understood that the cover 200 is detachably connected to the magnesium rod body 100. The magnesium rod body 100 is a consumable part, but the cover 200 is not a consumable part. After the magnesium rod body 100 is replaced, the cover 200 can continue to be connected with the magnesium rod body 100. The magnesium rod body 100 is used in conjunction with the magnesium rod body 100, which is beneficial to reducing after-sales maintenance costs, thereby improving the applicability of the cover 200.

Referring to the embodiment of FIG. 26 and the embodiment of FIG. 33 , the cover 200 has an annular grid structure. With this arrangement, when the cover 200 is disposed on the magnesium rod body 100 and covers part of the outer surface of the magnesium rod body 100, the cover 200 divides the outer surface of the magnesium rod body 100 into multiple pieces, thereby conducive to improving the efficiency of the magnesium rod body. The uniformity of corrosion of the magnesium rod body 100 by water prevents the magnesium rod body 100 from being easily broken due to concentrated corrosion locations, thereby improving the reliability of the magnesium rod assembly.

Please refer to Figures 26 and 31. In one embodiment, the cover 200 is made of silicone material. The cover 200 is sleeved on the magnesium rod body 100 and attached to the recess 110. . It can be understood that the cover 200 is made of silicone material, so that the cover 200 has a certain shrinkage elasticity. When the cover 200 is placed on the magnesium rod body 100, the cover 200 can be attached to the magnesium rod body 100. On the bottom wall of the recessed portion 110, the covering member 200 is not easily detached from the recessed portion 110 of the magnesium rod body 100, so that the covering member 200 can stably cover part of the outer surface of the magnesium rod body 100, thereby reducing the outer surface of the magnesium rod body 100. The surface area of the magnesium rod body 100 is conducive to reducing the contact area between the magnesium rod body 100 and water, thereby slowing down the consumption rate of the magnesium rod body 100 to achieve the effect of extending the service life of the magnesium rod body 100, thereby extending the service life of the water heater and reducing the After-sales repair costs for water heaters.

Please refer to Figure 33. In one embodiment, the cover 200 includes a first insulating bracket 201 and a second insulating bracket 202. The first insulating bracket 201 and the second insulating bracket 202 are enclosed to form an annular grid. -like structure, the first insulating bracket 201 and the second insulating bracket 202 are detachably connected, the first insulating bracket 201 is attached to part of the recess 110, and the second insulating bracket 202 is attached to another part of the recess 110. A portion of the recessed portion 110 covers a portion of the outer surface of the magnesium rod body 100 .

It can be understood that the first insulating bracket 201 and the second insulating bracket 202 can both be made of plastic material. Of course, they can also be made of other insulating materials, such as ceramics and other materials, which are not limited here. The first insulating bracket 201 and the second insulating bracket 202 are enclosed to form an annular mesh structure. The first insulating bracket 201 and the second insulating bracket 202 themselves may have a mesh structure, or the first insulating bracket 201 and the second insulating bracket may have a mesh structure. 202 are enclosed to form a mesh structure, and the details are not limited here. It is only necessary that the first insulating bracket 201 and the second insulating bracket 202 are enclosed to form a ring structure.

In one embodiment, the first insulating bracket 201 and the second insulating bracket 202 may be detachably connected in a variety of ways. For example, the first insulating bracket 201 and the second insulating bracket 202 may be detachably connected using a buckle structure; or, The first insulating bracket 201 and the second insulating bracket 202 are detachably connected using a bolt structure, and the details are not limited here. The first insulating bracket 201 is attached to part of the recess 110 to cover the bottom wall of part of the recess 110; the second insulating bracket 202 is attached to another part of the recess 110 to cover the bottom wall of the other part of the recess 110. The first insulating bracket 201 is attached to part of the recess 110 to cover the bottom wall of the recess 110. The opening of 201 is opposite to the opening of the second insulating bracket 202 so that the first insulating bracket 201 and the second insulating bracket 202 can be enclosed to form an annular structure and be attached to the recess 110 of the magnesium rod body 100 . Such an arrangement ensures that the first insulating bracket 201 and the second insulating bracket 202 cooperate with each other to reduce the area of the outer surface of the magnesium rod body 100, thereby reducing the area of the magnesium rod body 100 in contact with water, which is beneficial to slowing down the magnesium rod body. 100 consumption speed to achieve the effect of extending the service life of the magnesium rod body 100.

Please refer to the embodiments of FIGS. 36 to 38 , the embodiments of FIGS. 39 to 41 , and the embodiments of FIGS. 42 to 44 . The first insulating bracket 201 and the second insulating bracket 202 are snap-connected. Such arrangement makes the first insulating bracket 201 and the second insulating bracket 202 easy to disassemble and assemble, thereby improving the assembly efficiency of the magnesium rod assembly.

Referring to the embodiment of FIG. 36 and FIG. 37 , the first insulating bracket 201 has a first side end and a second side end disposed oppositely in the radial direction of the cover 200 , and the second insulating bracket 202 has a There is a third side end corresponding to the first side end and a fourth side end corresponding to the second side end; hooks 203 are provided on the first side end and the second side end, so The third side end and the fourth side end are provided with clamping slots 204, and the hooks 203 snap into fit with the clamping slots 204; or, the first side end and the fourth side end are provided with clamping slots 204. A hook 203 is provided, and a slot 204 is provided on the second side end and the third side end. The hook 203 engages with the slot 204 in snap fit.

In one embodiment, hooks 203 are provided on the first and second side ends, and slots 204 are provided on the third and fourth side ends. That is, both opposite ends of the first insulating bracket 201 are provided with hooks 203 . There are hooks 203, and slots 204 are provided at opposite ends of the second insulating bracket 202. The hooks 203 of the first insulating bracket 201 are locked in the slots 204 of the second insulating bracket 202.

In another embodiment, the first side end and the fourth side end are provided with hooks 203, and the second side end and the third side end are provided with clamping slots 204. That is, one end of the first insulating bracket 201 is provided with a clamping hook 203. The hook 203 has a snap slot 204 on the other end. The second insulating bracket 202 has a snap slot 204 on one end corresponding to the first insulating bracket 201 and the other end has a hook 203. The first insulating bracket 201 and the second insulating bracket The hook 203 and the slot 204 on the bracket 202 cooperate with each other and are locked and fixed.

It can be understood that the number of hooks 203 and slots 204 on the first insulating bracket 201 and the second insulating bracket 202 is not limited, and can be determined according to the length and specific needs of the first insulating bracket 201 and the second insulating bracket 202 Make settings. Through the structure of the hook 203 and the slot 204, the first insulating bracket 201 and the second insulating bracket 202 are easy to manufacture, assemble and disassemble, which is beneficial to improving the applicability of the cover 200.

Please refer to the embodiment of FIGS. 39 to 41 and the embodiment of FIGS. 42 to 44 . The first insulating bracket 201 and the second insulating bracket 202 each include two first rod bodies 205 and a plurality of second rod bodies. 206. The two first rods 205 are arranged at intervals and extend along the axial direction of the cover 200. The second rod 206 is provided between the two first rods 205. The second rod 206 is arranged between the two first rods 205. Both ends of the rod 206 are connected to two first rods 205 respectively. A plurality of second rods 206 are arranged at intervals along the axial direction of the cover 200 on the first rod 205, and each The second rod body 206 is provided with the hooks 203 and/or the clamping grooves 204 at both radially opposite ends of the cover 200 .

It can be understood that the number of the first rods 205 can also be multiple. The plurality of first rods 205 are arranged in sequence and extend along the axial direction of the cover 200 . The second rods 206 are arranged along the radial direction of the cover 200 . Connected to a plurality of first rods 205, a plurality of second rods 206 are arranged at intervals along the axial direction of the cover 200, and are arranged in such a manner that both the first insulating bracket 201 and the second insulating bracket 202 are arranged in a grid shape. In this embodiment, the number of the first rod bodies 205 is two. In other embodiments, the number of the first rod bodies 205 may be three, or five, etc.

In one embodiment, considering that the outer contour of the magnesium rod body 100 is arranged in a cylindrical shape, the outer contour of the cover 200 is also arranged in a cylindrical shape. Therefore, in this embodiment, the first rod body 205 is in a straight line along its length direction. The first rod body 205 is arranged in an arc shape along its width direction; the second rod body 206 is arranged in an arc shape along its length direction, and the curvature of the first rod body 205 and the curvature of the second rod body 206 are consistent with the magnesium rod. The curvature of the outer peripheral wall of the body 100 is adapted. This arrangement ensures that the cover 200 formed after the first insulating bracket 201 and the second insulating bracket 202 are assembled can fit in the recess 110, and the outer surface of the covering 200 does not exceed the outer surface of the magnesium rod body 100, so that The cover 200 does not change the overall size of the magnesium rod body 100, thereby not affecting the assembly of the magnesium rod body 100 and the inner tank of the water heater.

Please refer to the embodiment of FIGS. 39 to 41 and the embodiment of FIGS. 42 to 44 , the first insulating bracket 201 and the second insulating bracket 202 are axially centered relative to the center of the cover 200 Symmetrical setup. With this arrangement, the structures of the first insulating bracket 201 and the second insulating bracket 202 can be exactly the same. When manufacturing the first insulating bracket 201 and the second insulating bracket 202 , only the first insulating bracket 201 and the second insulating bracket need to be manufactured. Just one of 202 is sufficient, and when assembling the first insulating bracket 201 and the second insulating bracket 202 , assembly misalignment can also be avoided, thereby improving the reliability of the cover 200 .

This application also proposes a magnesium rod assembly, which is used in the inner tank of a water heater. The magnesium rod assembly includes a magnesium rod body 100 and a cover 200. The magnesium rod body is made of rare earth magnesium alloy material, and the cover 200 is located on the on the magnesium rod body 100 and covering part of the outer surface of the magnesium rod body 100 .

It can be understood that magnesium alloy materials will contain impurity elements, including at least one of Si, Fe, Cu or Ni. This impurity element is inevitable or difficult to avoid during the preparation process of magnesium alloy materials. In this embodiment, the magnesium rod body 100 is made of rare earth magnesium alloy material. The rare earth magnesium alloy material contains magnesium alloy and rare earth elements. By adding rare earth elements to the magnesium alloy, the content of impurity elements in the rare earth magnesium alloy material is reduced. , thus reducing the corrosion of magnesium alloys by impurity elements, making the magnesium rod body made of rare earth magnesium alloy materials have high current efficiency, thereby solving the problem of excessive corrosion rate and obvious particles appearing on the surface of existing magnesium rods during use. Shedding problem, thereby improving the service life and safety of the magnesium rod body.

In one embodiment, the rare earth magnesium alloy material includes 0.0009% to 3.5% of rare earth elements by mass percentage, and the rare earth elements are cerium group rare earth elements containing Ce. It can be understood that when magnesium alloy materials are used as sacrificial anode materials, the presence of the cathode phase Mg ₁₇ Al ₁₂ (β phase) in the multi-phase structure of the magnesium alloy will cause self-corrosion of the magnesium alloy. This embodiment reduces the content of β phase (Mg ₁₇ Al ₁₂ ) in magnesium alloys used as sacrificial anodes by adding an appropriate amount of cerium rare earth elements containing Ce, thereby reducing the degree of self-corrosion of the magnesium alloy sacrificial anode and also improving the β phase. Uniform distribution of (Mg ₁₇ Al ₁₂ ) in the structure of magnesium alloy sacrificial anode.

In one embodiment, when the magnesium rod assembly is installed in the inner tank of the water heater to provide anti-corrosion protection to the inner tank of the water heater, because the cover 200 covers part of the outer surface of the magnesium rod body 100, the cover 200 is not used when the magnesium rod assembly is initially consumed. It can isolate water from contacting part of the outer surface of the magnesium rod body 100, that is, the cover 200 reduces the surface area of the magnesium rod body 100 that contacts water, that is, reduces the reaction area of the magnesium rod body 100 that contacts water and ionizes, so that it can The consumption speed of the magnesium rod body 100 is slowed down, thereby achieving the effect of extending the service life of the magnesium rod body 100. It can be seen that the magnesium rod assembly of the present application can solve the problem of short service life of magnesium rods in the prior art.

It can be understood that the only difference between the magnesium rod assembly of this embodiment and the magnesium rod assembly of the previous embodiment is that the magnesium rod body of this embodiment is made of rare earth magnesium alloy material, while the magnesium rod body of the previous embodiment is made of Made of magnesium alloy material. That is to say, in addition to the above distinguishing features of the magnesium rod assembly of this embodiment, the magnesium rod assembly of this embodiment can adopt all the technical solutions of all the embodiments of the aforementioned magnesium rod assembly. This embodiment has the embodiments of the aforementioned magnesium rod assembly. All the functions brought by the technical solution will not be repeated here.

This application also proposes a water heater liner. The water heater liner includes the magnesium rod assembly as described above. The specific structure of the magnesium rod assembly refers to the above embodiments. Since this water heater liner adopts all the technologies of all the above embodiments, The solution, therefore, has at least all the functions brought by the technical solutions of the above embodiments, and will not be described again one by one.

This application also proposes a water heater, which includes a water heater inner tank as described above. The specific structure of the water heater inner tank refers to the above-mentioned embodiments. Since this water heater adopts all the technical solutions of all the above-mentioned embodiments, it has at least the above-mentioned features. All functions brought by the technical solutions of the embodiments will not be described again one by one here.

The above are only optional embodiments of the present application, and are not intended to limit the patent scope of the present application. Under the inventive concept of the present application, any equivalent structural transformation made by using the contents of the description and drawings of the present application, or direct/indirect Application in other related technical fields is included in the scope of patent protection of this application.

Claims (25)

1. A magnesium rod assembly used in the inner tank of water heaters, including:

   Magnesium rod body; and

   A cover is provided on the magnesium rod body and covers part of the outer surface of the magnesium rod body.
2. The magnesium rod assembly according to claim 1, wherein the outer surface of the magnesium rod body is provided with a recess, and the covering member is disposed in the recess to cover part of the outer surface of the magnesium rod body.
3. The magnesium rod assembly according to claim 2, wherein the magnesium rod body has a connecting end and a free end opposite to each other along its axial direction, and the cover is attached to the free end of the magnesium rod body to cover all The outer surface of the free end of the magnesium rod body.
4. The magnesium rod assembly according to claim 2, wherein the recess includes a cavity extending along the axial direction of the magnesium rod body, and the cavity penetrates the magnesium rod along the radial direction of the magnesium rod body. Body; the cover includes a first covering body filled in the cavity.
5. The magnesium rod assembly according to claim 2 or 4, wherein the recess further includes a channel provided on the outer peripheral wall of the magnesium rod body, the channel being in communication with the cavity; the cover further It includes a second covering body filled in the channel, and the second covering body is connected to the first covering body.
6. The magnesium rod assembly according to claim 5, wherein the channel includes a plurality of first grooves on the outer peripheral wall of the magnesium rod body along the surface of the magnesium rod body. Arranged at intervals in the axial direction, each first groove is annularly arranged along the circumferential direction of the magnesium rod body and communicates with the cavity; the second covering body includes a plurality of first grooves A plurality of first covering strips are provided corresponding to the grooves, and the first covering strips are connected to the first covering body.
7. The magnesium rod assembly according to claim 6, wherein the channel further includes a second groove provided on the outer peripheral wall of the magnesium rod body, the second groove is along the axial direction of the magnesium rod body. Extended and connected with the first groove; the second covering body also includes a second covering strip corresponding to the second groove, and the second covering strip is connected to the first covering strip .
8. The magnesium rod assembly according to claim 6, wherein the channel further includes a third groove, the third groove is spiral around the outer peripheral wall of the magnesium rod body along the axial direction of the magnesium rod body. arranged in a spiral shape; the second covering body further includes a third covering strip arranged corresponding to the third groove, and the third covering strip is arranged in a spiral shape.
9. The magnesium rod assembly according to claim 4, wherein the recess further includes a fourth groove provided on the magnesium rod body, and the fourth groove is provided on the side wall of the cavity; The cover further includes a fourth cover strip disposed corresponding to the fourth groove, and the fourth cover strip is protruding from the outer surface of the first cover body.
10. The magnesium rod assembly according to any one of claims 2 to 9, wherein the recess includes a plurality of first grooves, and the plurality of first grooves are located along the outer peripheral wall of the magnesium rod body. The magnesium rod body is arranged at intervals in the circumferential direction, and each first groove extends along the axial direction of the magnesium rod body; the cover includes a plurality of first grooves corresponding to the plurality of first grooves. the first coverage segment.
11. The magnesium rod assembly according to any one of claims 2 to 9, wherein the recess further includes a plurality of second grooves, and the plurality of second grooves are along the outer peripheral wall of the magnesium rod body. The magnesium rod body is arranged at intervals in the axial direction, and each second groove is arranged annularly along the circumferential direction of the magnesium rod body and is connected with the first groove; the cover further includes A plurality of second covering sections are provided corresponding to the plurality of second grooves, and the second covering sections are annularly arranged and connected to the first covering section.
12. The magnesium rod assembly according to claim 3, wherein a concave hole is provided on the end wall of the free end of the magnesium rod body, and the cover member includes a covering plate and a covering column provided on one side of the covering plate, so The covering column is filled in the concave hole, and the covering plate covers the outer surface of the free end of the magnesium rod body.
13. The magnesium rod assembly according to any one of claims 1 to 12, wherein the magnesium rod assembly further includes a first conductive member, a resistor and a second conductive member, and the magnesium rod body has opposite connections along its axial direction. end and the free end, part of the first conductive member is located inside the connecting end, and another part of the first conductive member is located outside the connecting end, the magnesium rod body, the first conductive member, the The resistor and the second conductive member are connected in sequence.
14. The magnesium rod assembly according to claim 13, wherein the magnesium rod assembly further includes a fixing member wrapped around another part of the first conductive member, the resistor and part of the second conductive member. On the outer surface, another part of the second conductive member is provided outside the fixing member; and/or,

    The connecting end of the magnesium rod body is provided with a boss, part of the first conductive member is provided in the boss, and the fixing member is wrapped around the outer surface of the boss.
15. The magnesium rod assembly according to claim 14, wherein the fixing part is an insulating part, the fixing part, the first conductive part, the resistor and the second conductive part are an integral structure, and the fixing part The component, the first conductive component, the resistor and the second conductive component are connected by one-time injection molding; and/or,

    The covering member is an insulating member, one end of the covering member is connected to one end of the fixing member, and the covering member and the fixing member are integrally injection molded.
16. The magnesium rod assembly according to any one of claims 1 to 15, wherein the cover is detachably provided on the magnesium rod body; and/or,

    The cover has an annular mesh structure.
17. The magnesium rod assembly according to claim 16, wherein the cover is made of silicone material, and is sleeved on the magnesium rod body and attached to the recess; or

    The cover includes a first insulating bracket and a second insulating bracket. The first insulating bracket and the second insulating bracket are enclosed to form an annular grid structure. The first insulating bracket and the second insulating bracket Detachably connected, the first insulating bracket is attached to part of the recess, and the second insulating bracket is attached to another part of the recess to cover part of the outer surface of the magnesium rod body.
18. The magnesium rod assembly according to claim 17, wherein the first insulating bracket and the second insulating bracket are snap-connected.
19. The magnesium rod assembly according to claim 17 or 18, wherein the first insulating bracket has first and second side ends disposed oppositely in the radial direction of the cover member, and the second insulating bracket has a third side end corresponding to the first side end and a fourth side end corresponding to the second side end; hooks are provided on the first side end and the second side end, so The third side end and the fourth side end are provided with clamping slots, and the hooks are engaged with the clamping slots; or,

    The first side end and the fourth side end are provided with hooks, the second side end and the third side end are provided with clamping slots, and the hooks are engaged with the slots. .
20. The magnesium rod assembly according to claim 19, wherein the first insulating bracket and the second insulating bracket each include two first rod bodies and a plurality of second rod bodies, and the two first rod bodies are arranged at intervals. and are respectively extended along the axial direction of the cover member, the second rod body is arranged between the two first rod bodies, and the two ends of the second rod body are connected to the two first rod bodies respectively. The second rod bodies are arranged at intervals along the axial direction of the cover member on the first rod body, and each second rod body is provided with the two opposite ends along the radial direction of the cover member. Hook and/or said slot.
21. A magnesium rod assembly used in the inner tank of water heaters, including:

    A magnesium rod body, the magnesium rod body is made of a rare earth magnesium alloy material, and the rare earth elements in the rare earth magnesium alloy material are cerium group rare earth elements containing Ce; and

    A cover is provided on the magnesium rod body and covers part of the outer surface of the magnesium rod body.
22. The magnesium rod assembly according to any one of claims 1 to 21, wherein the magnesium rod assembly further includes a first conductive member, a resistor and a second conductive member, and the magnesium rod body has opposite conductors along its axial direction. The connecting end and the free end, part of the first conductive member is located inside the connecting end, and another part of the first conductive member is located outside the connecting end, the magnesium rod body, the first conductive member, The resistor and the second conductive member are connected in sequence.
23. The magnesium rod assembly according to any one of claims 1 to 21, wherein the cover is detachably provided on the magnesium rod body.
24. A water heater inner tank includes the magnesium rod assembly according to any one of claims 1 to 23.
25. A water heater, including the water heater inner tank according to claim 24.

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