Water tank of water heater and water heater

Abstract

The water tank of the water heater comprises an inner container, a box body, an electrical box and an electrical installation assembly, and the inner container is provided with an installation opening; the box body covers the outer part of the inner container; the electrical box comprises a box body and a box cover, the box body is arranged on the outer side face of the box body, a penetrating opening is formed in the position, corresponding to the mounting opening, of the box body, a box opening of the box body faces the outer side of the box body, and the box cover is detachably connected to the box body and used for sealing the box opening; the electrical installation assembly is arranged in the penetrating-in opening and the installation opening in a penetrating mode and comprises a fixing disc and a first electrical part, the fixing disc is detachably connected to the inner container and seals the installation opening, and the first electrical part is located in the inner container, fixed to the fixing disc and capable of entering and exiting the inner container through the penetrating-in opening and the installation opening. According to the water heater water tank and the water heater, the convenience of later maintenance of the first electrical part in the inner container can be effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of household appliances, and in particular to a water tank for a water heater and a water heater. Background Art

[0002] In the related art, a water heater tank includes a box body and an inner tank, the inner tank is arranged inside the box body, and an installation port is provided on the inner tank, an electrical installation component is connected to the installation port, the electrical installation component closes the installation port, and the electrical installation component includes electrical components such as an electric heating tube or an electronic magnesium rod located inside the inner tank; this type of water heater tank, since the electrical installation component with electrical components is located inside the box body as a whole, it is not convenient for the later maintenance of the electrical components inside the inner tank. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a water heater tank, which can effectively improve the convenience of later maintenance of electrical components in the inner tank.

[0004] The present invention also provides a water heater having the water tank of the water heater.

[0005] According to the first aspect of the present invention, the water tank of the water heater comprises an inner tank, a box body, an electrical box and an electrical installation assembly, wherein the inner tank is provided with an installation opening; the box body cover is arranged on the outside of the inner tank; the electrical box comprises a box body and a box cover, the box body is arranged on the box body, and a penetration opening is opened at the position corresponding to the installation opening, the box opening of the box body faces the outside of the box body, the box cover is detachably connected to the box body, and is used to close the box opening; the electrical installation assembly is passed through the penetration opening and the installation opening, and comprises a fixing plate and a first electrical component, the fixing plate is detachably connected to the inner tank and closes the installation opening, the first electrical component is located inside the inner tank, and is fixed to the fixing plate, and can enter and exit the inner tank through the penetration opening and the installation opening.

[0006] The water heater tank according to the first embodiment of the present invention has at least the following beneficial effects:

[0007] By arranging an electrical box body on the box body, and making the box opening of the box body face the outside of the box body, and opening the box body, the electrical installation component is inserted through the opening, and the fixing plate in the electrical installation component is detachably connected to the inner tank, and the first electrical component is configured to be able to enter and exit the inner tank through the opening and the installation port. Therefore, after opening the cover of the electrical box, the fixing plate and the first electrical component in the electrical installation component can be directly removed from the inner tank through the opening from the inside of the box body for repair and replacement, and after repair, the first electrical component and the fixing plate can be reinstalled on the inner tank from the inside of the box body. Therefore, the water heater tank of this embodiment can perform maintenance on the first electrical component in the inner tank without dismantling the box body, thereby effectively improving the convenience of later maintenance.

[0008] According to some embodiments of the first aspect of the present invention, a water heater tank is further provided with a thermostat and an electronic magnesium rod electric control board in the box body, the first electrical component includes an electric heating tube, an electronic magnesium rod and a temperature sensor, the thermostat is electrically connected to the electric heating tube and the temperature sensor, and the electronic magnesium rod electric control board is electrically connected to the electronic magnesium rod.

[0009] According to some embodiments of the water heater tank of the first aspect of the present invention, the tank body includes a lower cover located at the bottom, the mounting port is arranged at the bottom of the inner tank, and the electrical box is arranged at the lower cover.

[0010] According to some embodiments of the water heater tank of the first aspect of the present invention, part of the bottom surface of the lower cover is concave to form a concave platform, and the concave platform is provided with a pipe joint, and the height of the pipe joint protruding from the concave platform is less than the depth of the concave platform.

[0011] According to some embodiments of the first aspect of the present invention, the water heater tank also includes a bottom heat exchanger and at least one fixing card, the inner tank includes a spherical head located at the bottom, the bottom heat exchanger includes a spiral coil spirally wound on the spherical head, the fixing card is arranged on the outside of the spherical head, and a plurality of slots are arranged on the side facing the spherical head, and the plurality of slots of the same fixing card are respectively connected with each circle segment of the spiral coil.

[0012] According to some embodiments of the first aspect of the present invention, the water heater tank, the fixing card includes a first fixing section, a clamping section and a second fixing section connected in sequence, the clamping groove is arranged on the clamping section, the first fixing section is arranged with a first connecting hole, the second fixing section is arranged with a second connecting hole, the spherical head is arranged with studs at positions corresponding to the first connecting hole and the second connecting hole, the studs are passed through the first connecting hole or the second connecting hole, the studs are connected with nuts, and the first fixing section and the second fixing section are pressed and fixed to the spherical head by the nuts.

[0013] According to some embodiments of the water heater tank of the first aspect of the present invention, one of the first connecting hole and the second connecting hole is a round hole, and the other is a waist-shaped hole.

[0014] According to some embodiments of the water heater tank of the first aspect of the present invention, a mounting groove is provided on a side of the first fixing section and the second fixing section facing away from the spherical head, and the nut is accommodated in the mounting groove.

[0015] According to some embodiments of the first aspect of the present invention, the water heater tank also includes a microchannel heat exchanger, a hanger and a wall plate. The hanger is arranged on the peripheral side of the inner tank and connected to the wall plate. The side of the hanger facing away from the inner tank forms a receiving groove; the microchannel heat exchanger includes a heat exchange body and a connecting pipe. The heat exchange body is arranged on the peripheral side of the inner tank, the connecting pipe is clamped in the receiving groove, and one end is connected to the heat exchange body.

[0016] According to some embodiments of the second aspect of the present invention, the water heater comprises a water tank of the water heater of the above-mentioned first aspect.

[0017] The water heaters according to some embodiments of the second aspect of the present invention have at least the following beneficial effects: by adopting the water tank of the water heater of the above-mentioned embodiment of the first aspect, the convenience of subsequent maintenance can be effectively improved.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0020] Figure 1 It is a bottom view structural schematic diagram of a water heater tank of some embodiments of the present invention;

[0021] Figure 2 for Figure 1 A schematic diagram of the three-dimensional structure of the water heater tank shown in FIG. 1 after removing the wall panel from the water heater tank;

[0022] Figure 3 for Figure 2 The three-dimensional structure diagram of the water heater tank shown in FIG. 1 is a schematic diagram of the three-dimensional structure of the water heater tank from another perspective after the cover of the electrical box is opened;

[0023] Figure 4 for Figure 2 A schematic diagram of the three-dimensional structure of the water heater tank after removing the circumferential side of the tank body;

[0024] Figure 5 for Figure 4 Schematic diagram of the cross-sectional structure in the direction indicated by AA;

[0025] Figure 6 for Figure 5 A partial enlarged view of the area shown in C;

[0026] Figure 7 for Figure 4 A schematic diagram of the cross-sectional structure in the direction indicated by BB;

[0027] Figure 8 for Figure 7 A partial enlarged view of the area shown in D;

[0028] Fig. 9 for Figure 4 A bottom-up structural diagram of a fixed card is shown in FIG.

[0029] Fig.10 for Figure 4 A partial enlarged view of the area shown in E;

[0030] Fig.11 It is a structural schematic diagram for showing the connection relationship between the inner tank, the bottom heat exchanger and the fixing card;

[0031] Fig.12 for Fig.11 A partial enlarged view of the area indicated in F.

[0032] Reference numerals:

[0033] Inner tank 100; mounting opening 110; flange 111; spherical head 120; stud 121;

[0034] Box body 200; lower cover 210; first concave platform 211; second concave platform 212; wall hanging board 220;

[0035] Electrical box 300; box body 310; penetration port 311; box cover 320; second electrical component 330; line card 340;

[0036] Electrical installation assembly 400; fixing plate 410; first electrical component 420; flange plate 430; flange gland 440; sealing gasket 450;

[0037] Microchannel heat exchanger 500; heat exchange body 510; header 511; heat exchange tube 512; connecting tube 520; first tube section 521; second tube section 522;

[0038] Hanger 600; first connecting section 610; second connecting section 620; recessed portion 621; receiving groove 622; third connecting hole 623; third connecting section 630; support leg 631;

[0039] Water inlet pipe joint 810; water outlet pipe joint 820; drainage pipe joint 830;

[0040] Bottom heat exchanger 700; spiral coil 710;

[0041] Fixing card 900 ; first fixing section 910 ; first connecting hole 911 ; connecting section 920 ; slot 921 ; second fixing section 930 ; second connecting hole 931 ; mounting slot 940 . DETAILED DESCRIPTION

[0042] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0043] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, left, right, front, back, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0044] In the description of the present invention, if there is a description of first and second, it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0045] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0046] The following is the attached Figure 1 To Attachment Fig.12 , describing the water heater tank of the first embodiment of the present invention.

[0047] Reference Figures 1 to 6 According to some embodiments of the present invention, a water heater tank includes an inner tank 100 , a tank body 200 , an electrical box 300 and an electrical installation assembly 400 .

[0048] Among them, the inner tank 100 is hollow and is a container for accommodating hot water. The inner tank 100 is provided with a water inlet, a water outlet and an installation port 110, and the installation port 110 is used to install the electrical installation component 400; the box body 200 covers the outside of the inner tank 100 and can protect the inner tank 100 to prevent the inner tank 100 from being damaged by bumps. The box body 200 is provided with components such as a water inlet pipe and a water outlet pipe, and the water inlet pipe and the water outlet pipe are respectively connected to the water inlet and the water outlet on the inner tank 100, so that water can be injected into the inner tank 100 through the water inlet pipe and the water inlet, and the hot water in the inner tank 100 can be released through the water outlet pipe and the water outlet.

[0049] The electrical box 300 includes a box body 310 and a box cover 320. The box body 310 is arranged on the side of the box body 200 corresponding to the installation opening 110, and the box opening of the box body 310 faces the outside of the box body 200. The box cover 320 is connected to the box body 310 through a detachable connection structure such as a threaded fastener or a snap, and is used to close the box opening, so that the box cover 320 can be directly opened from the outside of the box body 200; the box body 310 is also provided with a through-port 311 at the position corresponding to the installation opening 110, so as to facilitate the installation and removal of the electrical installation component 400 through the through-port 311.

[0050] The electrical installation component 400 is penetrated through the penetration port 311 and the installation port 110, and the electrical installation component 400 includes a fixed disk 410 and a first electrical component 420. The first electrical component 420 is an electrical component arranged inside the inner tank 100 for use. The fixed disk 410 is used to install and fix the first electrical component 420 and close the installation port 110, and the fixed disk 410 is detachably connected to the inner tank 100. The size of the first electrical component 420 and the installation position on the fixed disk 410 are set to allow the first electrical component 420 to enter and exit the penetration port 311 and the installation port 110. After the connection between the fixed disk 410 and the inner tank 100 is released, the fixed disk 410 and the first electrical component 420 can be taken out of the box body 200 through the penetration port 311, and the fixed disk 410 and the first electrical component 420 can also be reinstalled into the inner tank 100 through the penetration port 311.

[0051] From the above description, it can be known that, for the water heater tank of the present embodiment, after directly opening the box cover 320 of the electrical box 300 on the outside of the box body 200, the fixed disk 410 and the first electrical component 420 in the electrical installation assembly 400 can be directly removed from the inner tank 100 through the through-port 311 of the box body 310 for repair and replacement, and after the repair, the first electrical component 420 and the fixed disk 410 can be reinstalled on the inner tank 100 through the through-port 311 of the box body 310. Therefore, the water heater tank of the present embodiment can perform maintenance on the first electrical component 420 in the inner tank 100 without removing the box body 200, thereby effectively improving the convenience of later maintenance.

[0052] It can be understood that in some of the embodiments, the electrical box 300 is made of flame-retardant materials (for example, ceramics, sheet metal, or halogen-containing flame-retardant plastics, etc.). Therefore, when leakage occurs between the fixed plate 410 and the installation port 110, resulting in a short circuit or other circuit failure in the first electrical component 420, the risk of ignition of combustible components such as the insulation foam in the water heater tank can be effectively reduced, which is beneficial to improving the safety performance of the water heater tank.

[0053] It is understood that in some of these embodiments, reference Figure 3 and Figure 5 A second electrical component 330 is also provided inside the electrical box 300. The second electrical component 330 is an electrical element applied to the water tank and used outside the inner tank 100. By arranging some of the second electrical components 330 together with the electrical installation components 400 in the electrical box 300, the convenience of subsequent maintenance can be further improved.

[0054] It should be understood that the first electrical component 420 varies depending on the type of water heater used in the water tank. In some instances, the first electrical component 420 may include one or more of an electric heating tube, an electronic magnesium rod and a temperature sensor, and correspondingly, the second electrical component 330 may also select one or both of a thermostat and an electronic magnesium rod electric control board based on the first electrical component 420.

[0055] For example, in one embodiment, the first electrical component 420 includes an electric heating tube, an electronic magnesium rod and a temperature sensor, and the second electrical component 330 includes a thermostat and an electronic magnesium rod electric control board, and the thermostat is electrically connected to the electric heating tube and the temperature sensor, and the electronic magnesium rod electric control board is electrically connected to the electronic magnesium rod, so that the thermostat can control the working state of the electric heating tube according to the temperature of the hot water detected by the temperature sensor, and the electronic magnesium rod electric control board can control the working state of the electronic magnesium rod. In addition, specifically, in order to facilitate the circuit connection, the wiring terminals of the electric heating tube, the electronic magnesium rod and the temperature sensor are all arranged on the side of the fixed plate 410 away from the inner tank 100, that is, the wiring terminals of the electric heating tube, the electronic magnesium rod and the temperature sensor are all located on the inner side of the box body 310, so that it is convenient to directly connect the first electrical component 420 and the second electrical component 330 that need to be interconnected in the box body 310 through wires. At the same time, the circuit inside the box body 200 enters the electrical box 300 through the through-port 311 to supply power to the second electrical component 330 in the electrical box 300 and the first electrical component 420 on the electrical installation assembly 400; and, specifically, the inner wall of the box body 310 is also provided with a wire clip 340 for fixing the wire.

[0056] It is understood that in some of these embodiments, reference Figure 5 and Figure 6 In order to realize the detachable connection of the fixing plate 410 on the inner tank 100, the electrical installation assembly 400 also includes a flange 430 and a flange gland 440. The inner tank 100 is provided with a flange 111 folded outward at the edge of the installation opening 110. The flange 430 is arranged between the flange 111 and the outer wall of the inner tank 100 body, and the flange gland 440 is arranged on the side of the flange 111 away from the flange 430. The fixing plate 410 is located between the flange gland 440 and the flange 111, and the flange gland 440 and the flange 430 are detachably connected by fasteners such as bolts, thereby pressing and fixing the fixing plate 410 between the flange gland 440 and the flange 111; and, referring to Figure 6 In order to reduce the risk of leakage, a sealing gasket 450 is further provided between the inner side surface of the flange 111 and the fixed disk 410 to improve the sealing performance between the fixed disk 410 and the flange 111.

[0057] It should be understood that in addition to the above-mentioned flange 430, flange cover 440, flange 111 and fasteners that cooperate to press and fix the fixing plate 410 to the inner liner 100, in some other embodiments, in order to achieve a detachable connection between the fixing plate 410 and the inner liner 100, other types of detachable connection forms such as threaded connection or clamping can also be selected, and no specific restrictions are made here; for example, in another embodiment, an external thread is provided on the peripheral side surface of the fixing plate 410, and an internal thread is provided on the inner side wall of the mounting port 110, and the fixing plate 410 is threadedly connected to the inner liner 100.

[0058] It is understood that in some of the embodiments, the water heater tank is applied to the air energy water heater, and with reference to Figure 4 The water heater tank also includes a microchannel heat exchanger 500, a hanger 600 and a wall plate 220. The microchannel heat exchanger 500 is arranged on the peripheral side of the inner tank 100, so that after the heat pump passes the heating medium into the microchannel heat exchanger 500, the peripheral side of the inner tank 100 can be heated by the microchannel heat exchanger 500. The hanger 600 is arranged on the peripheral side of the inner tank 100 and connected to the wall plate 220. The wall plate 220 is used to be fixed on the wall, and then when the water heater tank is hung on the wall through the wall plate 220, the gravity load of the inner tank 100 can be carried by the hanger 600 and the wall plate 220. The microchannel heat exchanger 500 includes a heat exchange body 510 and a connecting pipe 520, wherein the heat exchange body 510 includes a collecting pipe 511 and a heat exchange tube 512, and is coiled on the peripheral side of the inner tank 100 and is used to heat the inner tank 100, and one end of the connecting pipe 520 is connected to the heat exchange body 510, and the connecting pipe 520 is the working fluid inlet pipe or the working fluid outlet pipe of the microchannel heat exchanger 500.

[0059] In the related art, the connecting tube 520 is fixed by the hanger 600 and fixed in the installation channel formed between the hanger 600 and the inner liner 100. Therefore, when the microchannel heat exchanger 500 is installed on the peripheral side of the inner liner 100, it is not only necessary to first bend the microchannel heat exchanger 500 and then fit the peripheral side of the inner liner 100, but also necessary to move the microchannel heat exchanger 500 along the axial direction of the inner liner 100, and then allow the connecting tube 520 to penetrate into the above-mentioned installation channel, so the installation process is cumbersome.

[0060] Therefore, in order to simplify the installation process of the microchannel heat exchanger 500, in some embodiments, reference is made to Figure 4A receiving groove 622 is formed on the hanger 600, and the receiving groove 622 is located on the side of the hanger 600 away from the inner liner 100, and the connecting pipe 520 is clamped in the receiving groove 622; since the receiving groove 622 on the hanger 600 is located on the side away from the inner liner 100, when installing the microchannel heat exchanger 500, it is only necessary to bend the microchannel heat exchanger 500 first, and then fit it to the peripheral side of the inner liner 100, so that the connecting pipe 520 can enter the receiving groove 622.

[0061] And, refer to Figure 4 , Figure 7 and Figure 8 In order to enable the connecting pipe 520 to be snapped into the receiving groove 622, specifically, the connecting pipe 520 includes a first pipe section 521 and a second pipe section 522 that are connected to each other, the second pipe section 522 is arranged at a certain angle to the first pipe section 521, and the end of the first pipe section 521 that is away from the second pipe section 522 is connected to the collecting pipe 511, and along the direction away from the collecting pipe 511, the distance from the first pipe section 521 to the outer wall of the inner tank 100 gradually increases, so that the second pipe section 522 can be suspended on the outside of the inner tank 100, and then snapped into the receiving groove 622.

[0062] It is understood that in some of these embodiments, reference Fig. 9 Specifically, the hanger 600 is a bent sheet metal part, and includes a first connecting section 610, a second connecting section 620 and a third connecting section 630 connected in sequence. The end of the first connecting section 610 away from the second connecting section 620 and the end of the third connecting section 630 away from the second connecting section 620 are both provided with supporting feet 631, so as to be welded to the inner liner 100 through the two supporting feet 631, and there is a gap between the third connecting section 630 and the outer wall of the inner liner 100, and a recessed portion 621 recessed toward one side of the inner liner 100 is formed in the middle of the third connecting section 630, and a receiving groove 622 is formed on the recessed portion 621, and the second connecting section 620 is respectively connected to the first connecting section 610 and the third connecting section 630. The two ends are provided with third connecting holes 623, so that the wall hanging plate 220 can be connected by fasteners penetrated through the third connecting holes 623.

[0063] It should be understood that in some other embodiments, the hanger 600 may also be configured as a solid block, with one end close to the inner liner welded to the inner liner 100 and the other end away from the inner liner 100 having a receiving groove 622 .

[0064] It is understood that in some of the embodiments, the water heater tank is a vertical hanging water tank, and with reference to Figures 1 to 3 , Figure 5The box body 200 includes a lower cover 210, which closes the bottom of the box body 200. The installation port 110 is set at the bottom of the inner tank 100, and accordingly, the electrical box 300 is set at the position of the lower cover 210 corresponding to the installation port 110, and the box opening of the box body 310 faces downward; since the vertical hanging water tank is usually hung on a wall at a certain height when in use, by setting the electrical box 300 on the lower cover 210 at the bottom of the box body 200, the convenience of the disassembly and assembly process of the electrical installation component 400 can be further improved, such as reducing the height required for climbing during the disassembly and assembly process.

[0065] It should be understood that, in addition to being optionally set on the lower cover 210 of the box body 200, the electrical box 300 may also be selected to be set at other positions of the box body 200 in some other embodiments, without specific limitation herein; for example, in another embodiment, when the water heater tank is a horizontal hanging water tank, the installation port 110 may be selected to be set at the left end or the right end of the inner tank 100, and the electrical box 300 may be correspondingly embedded in the left end surface or the right end surface of the box body 200.

[0066] It can be understood that in some of the embodiments, in order to facilitate the quick connection between the water heater tank and the external pipeline, at least one pipe joint is further provided on the lower cover 210, and a portion of the bottom surface of the lower cover 210 is concave to form a recessed platform, and the pipe joint is provided on the recessed platform. The height of the pipe joint protruding from the recessed platform is less than the depth of the recessed platform, so that the bottom of the pipe joint can be relatively higher than the bottom surface of the lower cover 210, and further, during the installation of the water heater tank, the water heater tank will not be affected by the pipe joint, and can be directly placed on the ground through the lower cover 210.

[0067] For example, refer to Figures 1 to 3In one embodiment, specifically, the pipe joint includes an inlet pipe joint 810, an outlet pipe joint 820 and a drain pipe joint 830, wherein the inlet pipe joint 810 is connected to the water inlet pipe inside the box 200, the outlet pipe joint 820 is connected to the water outlet pipe inside the box 200, and the drain pipe joint 830 is connected to the condensed water discharge pipe inside the box 200, and the concave platform includes a first concave platform 211 and a second concave platform 212, wherein the inlet pipe joint 810 and the outlet pipe joint 820 are set On the first recess 211, and the drain pipe joint 830 is arranged on the second recess 212; and, specifically, the box body 310 of the electrical box 300 is also arranged on the first recess 211 to prevent the box cover 320 of the electrical box 300 from protruding from the lower surface of the lower cover 210, and to improve the aesthetics, the water inlet pipe joint 810 and the water outlet pipe joint 820 are symmetrically arranged about the central axis of the lower cover 210 and the box cover 320, and the second recess 212 is arranged at the edge of the lower cover 210. At the same time, specifically, the water inlet pipe joint 810, the water outlet pipe joint 820 and the drain pipe joint 830 are all located on the side of the center of the lower cover 210 that is biased towards the wall panel 220. Since the water tank of the water heater is connected to the wall through the wall panel 220, by arranging the water inlet pipe joint 810, the water outlet pipe joint 820 and the drain pipe joint 830 on the side of the lower cover 210 close to the wall panel 220, it is convenient to connect the water inlet pipe joint 810, the water outlet pipe joint 820 and the drain pipe joint 830 to the external water supply pipeline, user water pipeline and drainage pipeline arranged on the wall respectively.

[0068] It is understood that in some of these embodiments, reference Figure 4 The water tank of the water heater also includes a bottom heat exchanger 700, and the bottom heat exchanger 700 includes a spiral coil 710. The bottom of the inner tank 100 adopts a spherical head 120, and the spiral coil 710 is spirally wound on the spherical head 120. After the heating medium is introduced into the bottom heat exchanger 700, the bottom of the inner tank 100 can be heated by the spiral coil 710 to reduce the water temperature stratification in the inner tank 100.

[0069] At the same time, refer to Figure 4 and Fig.10In order to prevent the spiral coil 710 from sagging under the action of its own gravity and then detaching from the spherical head 120, a fixing card 900 is arranged on the outer side of the spherical head 120, and a plurality of slots 921 are provided on the side of the fixing card 900 facing the spherical head 120. The plurality of slots 921 on the same fixing card 900 are respectively used to engage with each circle segment of the spiral coil 710, thereby respectively fixing each circle segment of the spiral coil 710, thereby preventing the spiral coil 710 from sagging under the action of its own gravity and detaching from the spherical head 120; and because each circle segment of the spiral coil 710 is respectively engaged with different slots 921 on the fixing card 900, by designing the distance between adjacent slots 921 on the fixing card 900, the distance between any two adjacent circle segments of the spiral coil 710 can also be effectively controlled, so as to further improve the uniformity of heating the spherical head 120.

[0070] It is understood that in one embodiment, referring to Fig.11 A plurality of fixing cards 900 are arranged around the spherical head 120, thereby assisting in fixing the multi-turn spiral coil 710 in a plurality of different orientations.

[0071] It is understandable that in some embodiments, the fixing card 900 is installed and fixed on the spherical head 120, and to facilitate the installation of the fixing card 900, refer to Figures 10 to 12 The fixing card 900 includes a first fixing section 910, a clamping section 920 and a second fixing section 930, which are connected in sequence, wherein a clamping groove 921 is provided on the clamping section 920, and the first fixing section 910 and the second fixing end are used to be connected to the spherical head 120; and, specifically, a first connecting hole 911 is provided on the first fixing section 910, and a second connecting hole 931 is provided on the second fixing section 930, and a stud 121 is provided at a position corresponding to the first connecting hole 911 and the second connecting hole 931 of the spherical head 120, the stud 121 is penetrated through the first connecting hole 911 or the second connecting hole 931, and a nut is threadedly connected to the stud 121, and then the first fixing section 910 and the second fixing section 930 are pressed and fixed on the spherical head 120 by the nut.

[0072] It is understood that in one embodiment, referring to Fig.12 , the first connection hole 911 is a waist-shaped hole, and the second connection hole 931 is a round hole, so that when there is a certain position deviation between the two studs 121 corresponding to the same fixing card 900, it can also ensure that the two studs 121 can pass through the first connection hole 911 and the second connection hole 931 well, so as to further improve the convenience of installing the fixing card 900. It should be understood that in another embodiment, the first connection hole 911 can also be set as a round hole, and the second connection hole 931 can be set as a waist-shaped hole.

[0073] It is understood that in some of these embodiments, reference Figures 10 to 12 A mounting groove 940 is provided on the side of the first fixing section 910 and the second fixing section 930 facing away from the spherical head 120, and the nut on the stud 121 is accommodated inside the mounting groove 940; by accommodating the nut inside the mounting groove 940, the nut can be prevented from loosening due to bumps and the like during the installation of the water heater tank, thereby avoiding affecting the fixing effect of the fixing card 900 on the spiral coil 710; and it should be understood that the size of the mounting groove 940 should be larger than the size of the nut so that the nut can be screwed into the mounting groove 940.

[0074] It should be understood that in addition to being fixedly connected to the spherical head 120, in some other embodiments, the fixing card 900 can also be connected and fixed to the inner wall of the box body 200, as long as the various slots 921 on the fixing card 900 can be snapped into the corresponding circles of the spiral coil 710. Therefore, the specific fixing method and fixing position of the fixing card 900 are not limited here.

[0075] The following describes a water heater according to a second aspect of the present invention. The water heater of this embodiment includes a water heater tank according to the first embodiment. By adopting the water heater tank according to the first embodiment, the convenience of subsequent maintenance can be effectively improved.

[0076] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A water heater tank, characterized in that: include: The inner tank is provided with a mounting opening; A box body, which is arranged outside the inner container; An electrical box, comprising a box body and a box cover, wherein the box body is arranged on the box body and has a through opening corresponding to the position of the installation opening, the box opening of the box body faces the outside of the box body, and the box cover is detachably connected to the box body and used to close the box opening; An electrical installation component is inserted through the through-port and the installation port, and includes a fixing plate and a first electrical component. The fixing plate is detachably connected to the inner liner and can close the installation port. The first electrical component is located inside the inner liner and is fixed to the fixing plate, and can enter and exit the inner liner through the through-port and the installation port.

2. The water heater tank according to claim 1, characterized in that: The box body is also provided with a temperature controller and an electronic magnesium rod electric control board. The first electrical component includes an electric heating tube, an electronic magnesium rod and a temperature sensor. The temperature controller is electrically connected to the electric heating tube and the temperature sensor, and the electronic magnesium rod electric control board is electrically connected to the electronic magnesium rod.

3. The water heater tank according to claim 1, characterized in that: The box body comprises a lower cover located at the bottom, the mounting opening is arranged at the bottom of the inner container, and the electrical box is arranged on the lower cover.

4. The water heater tank according to claim 3, characterized in that: Part of the bottom surface of the lower cover is concave to form a concave platform, and the concave platform is provided with a pipe joint, and the height of the pipe joint protruding from the concave platform is less than the depth of the concave platform.

5. The water heater tank according to any one of claims 1 to 4, characterized in that: The water tank of the water heater also includes a bottom heat exchanger and at least one fixing card. The inner tank includes a spherical head located at the bottom. The bottom heat exchanger includes a spiral coil spirally wound around the spherical head. The fixing card is arranged on the outside of the spherical head, and a plurality of slots are arranged on a side facing the spherical head. The plurality of slots of the same fixing card are respectively connected with each circle segment of the spiral coil.

6. The water heater tank according to claim 5, characterized in that: The fixing card includes a first fixing section, a clamping section and a second fixing section which are connected in sequence, the clamping groove is arranged on the clamping section, the first fixing section is arranged with a first connecting hole, the second fixing section is arranged with a second connecting hole, the spherical head is arranged with studs at positions corresponding to the first connecting hole and the second connecting hole, the studs are passed through the first connecting hole or the second connecting hole, the studs are connected with nuts, and the first fixing section and the second fixing section are pressed and fixed to the spherical head by the nuts.

7. The water heater tank according to claim 6, characterized in that: One of the first connecting hole and the second connecting hole is a round hole, and the other is a waist-shaped hole.

8. The water heater tank according to claim 6, characterized in that: The first fixing section and the second fixing section are provided with mounting grooves on one side facing away from the spherical head, and the nuts are accommodated in the mounting grooves.

9. The water heater tank according to any one of claims 1 to 4, characterized in that: The water tank of the water heater also includes a microchannel heat exchanger, a hanger and a wall plate. The hanger is arranged on the peripheral side of the inner tank and connected to the wall plate. The side of the hanger away from the inner tank forms a receiving groove; the microchannel heat exchanger includes a heat exchange body and a connecting pipe. The heat exchange body is arranged on the peripheral side of the inner tank, the connecting pipe is clamped in the receiving groove, and one end is connected to the heat exchange body.

10. A water heater, characterized in that: The invention comprises a water heater tank as claimed in any one of claims 1 to 9.

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