Display rear shell and surface shell assembly of water heater

Abstract

The utility model belongs to the technical field of heat supply, and particularly discloses a displayer rear shell and face shell assembly of a water heater. The displayer rear shell of the water heater comprises a bottom plate and a side frame, the side frame surrounds the bottom plate and is connected to the edge of the bottom plate, a containing cavity is formed between the side frame and the bottom plate, a first opening is formed in the side, away from the bottom plate, of the containing cavity, and the containing cavity is used for containing a circuit assembly of a displayer. The side frame is further provided with a wire passing hole and a notch which are through in the thickness direction of the side frame, the notch is communicated between the wire passing hole and the first opening, the width a of the notch is smaller than the width b of the wire passing hole, the wire passing hole is used for allowing a wire harness connected with the circuit assembly to penetrate through, and due to the fact that the width a of the notch is small, the wire harness is not prone to automatically penetrating through the notch to be separated from the wire passing hole. Therefore, an operator does not need to push the wire harness aside manually and maintain the state of the wire harness manually, the installation operation difficulty of the display rear shell can be reduced, and the installation efficiency of the display rear shell is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heating, in particular to a display rear shell and a front shell assembly of a water heater. Background Art

[0002] With the increasing functionality of water heaters, most are now equipped with displays. These displays typically consist of a display back cover, a circuit assembly, and a display screen. In the prior art, the circuit assembly is typically mounted on the display back cover, the display screen is mounted on the water heater front cover, the display screen is then electrically connected to the circuit assembly, and the display back cover is mounted on the front cover to create the water heater front cover assembly.

[0003] However, the circuit assembly is typically also connected to a wiring harness for electrical connection to an external drive circuit. During the installation of the display back cover and front cover, the wiring harness must be manually unhooked and held in place within a pre-set wiring hole to prevent the back cover and front cover from clamping the wiring harness and thereby causing damage or squeezing. Consequently, manual installation of the display back cover and front cover is difficult and inefficient. Utility Model Content

[0004] One of the technical problems solved by the present invention is to provide a display rear shell of a water heater, which can effectively solve the problems of difficult installation operation and low installation efficiency of the display rear shell.

[0005] The second technical problem solved by the present invention is to provide a water heater surface shell assembly, which can effectively solve the problem of difficult assembly and low assembly efficiency of the surface shell assembly.

[0006] The first technical problem mentioned above is solved by the following technical solution:

[0007] A display rear housing of a water heater, comprising:

[0008] base plate; and,

[0009] a side frame, the side frame surrounding the bottom plate and connected to an edge of the bottom plate, a receiving cavity formed between the side frame and the bottom plate, a first opening formed on a side of the receiving cavity away from the bottom plate, the receiving cavity being used to receive a circuit component of the display;

[0010] The side frame is also provided with a wire-passing hole and a notch that pass through along its thickness direction. The notch is connected between the wire-passing hole and the first opening. The width a of the notch is smaller than the width b of the wire-passing hole. The wire-passing hole is used for passing the wiring harness connected to the circuit assembly.

[0011] Compared with the background art, the display rear housing of the water heater described in the present invention has the following beneficial effects:

[0012] By setting a gap connected to the wire hole on the side frame of the rear shell of the display, and making the width a of the gap smaller than the width b of the wire hole, the wire harness can enter the wire hole through the gap. Since the width a of the gap is small, when the wire harness passing through the wire hole is not subjected to additional external force, the wire harness is not easy to automatically pass through the gap to detach from the wire hole, so that when the operator installs the rear shell of the display to the face shell, there is no need to manually pull apart the wire harness and manually maintain the state of the wire harness, thereby reducing the difficulty of the installation operation of the rear shell of the display and improving the installation efficiency of the rear shell of the display.

[0013] In one embodiment, the notch has two opposite side surfaces along its width direction;

[0014] The side surface includes a first guide surface close to the first opening, and the closer the first guide surface is to the first opening, the farther the first guide surface is from the opposite side surface; and / or, the side surface includes a second guide surface close to the wire hole, and the closer the second guide surface is to the wire hole, the farther the second guide surface is from the opposite side surface.

[0015] In one embodiment, the side frame is formed with a baffle portion, the baffle portion is located on a side of the wire hole close to the notch, and the baffle portion is located on at least one side of the notch along its own width direction.

[0016] In one embodiment, the side frame includes a first side panel, a third side panel, a second side panel, and a fourth side panel arranged in sequence around the bottom panel, the first side panel is spaced apart from the second side panel, and the third side panel is spaced apart from the fourth side panel;

[0017] A first latching protrusion is provided on the first side panel, the first latching protrusion is located in the accommodating cavity and has a first limiting surface facing away from the first opening, a second latching protrusion is provided on the second side panel, the second latching protrusion is located in the accommodating cavity and has a second limiting surface facing away from the first opening, the first limiting surface and the second limiting surface are both spaced apart from the bottom plate, and the first limiting surface and the second limiting surface are both used to abut against the surface of the circuit board of the circuit assembly facing away from the bottom plate.

[0018] In one embodiment, along the relative direction between the first side plate and the second side plate, the projection of the first latching protrusion on the second side plate is staggered with the second latching protrusion.

[0019] In one embodiment, the first latching protrusion has a third guide surface facing away from the first side plate, and the closer the third guide surface is to the first opening, the farther the third guide surface is from the second side plate; and / or,

[0020] The second locking protrusion has a fourth guide surface facing away from the second side plate. The closer the fourth guide surface is to the first opening, the farther the fourth guide surface is from the first side plate.

[0021] In one embodiment, the first latching protrusion and / or the second latching protrusion is an elastic latch, and the free end of the elastic latch extends toward the middle of the accommodating cavity (3).

[0022] In one embodiment, the third side panel and / or the fourth side panel is provided with a first limiting rib, the first limiting rib is located in the accommodating cavity, and the first limiting rib is used to abut against the side surface of the circuit board; and / or,

[0023] The bottom plate is provided with a second limiting rib, the second limiting rib is located in the accommodating cavity, and the second limiting rib is used to abut against the plate surface of the circuit board facing the bottom plate.

[0024] In one embodiment, a third latching protrusion and a fourth latching protrusion are provided on the outer periphery of the side frame, the third latching protrusion and the fourth latching protrusion are respectively located on two opposite sides of the side frame, and the third latching protrusion and the fourth latching protrusion are respectively used to be latched to an external latching structure; and / or,

[0025] The outer periphery of the side frame is provided with a mounting foot, and the mounting foot is provided with a through first mounting hole, and the first mounting hole is used for the locking member to pass through.

[0026] The second technical problem mentioned above is solved by the following technical solution:

[0027] A face shell assembly of a water heater comprises: a face shell and a display rear shell as described in the aforementioned technical solution, wherein the face shell is provided with a second through opening, the display surface of the display screen of the display is used to be arranged toward the front side of the face shell, and the display screen is used to cover the second opening, the display rear shell is installed on the rear side of the face shell, and the first opening is connected to the second opening.

[0028] Compared with the background technology, the face shell assembly of the water heater described in the present invention has the following beneficial effects: since the installation operation of the display rear shell on the face shell is less difficult and the installation efficiency is higher, the assembly difficulty of the face shell assembly can be reduced and the assembly efficiency of the face shell assembly can be improved.

[0029] In one embodiment, when the outer periphery of the side frame is provided with a third latching protrusion and a fourth latching protrusion, the face shell is provided with a first flange and a second flange located on two opposite sides of the second opening, the first flange is provided with a first latching hole, the third latching protrusion is engaged with the first latching hole, the second flange is provided with a second latching hole, the fourth latching protrusion is engaged with the second latching hole;

[0030] When the outer periphery of the side frame is provided with a mounting foot, the face shell is provided with a mounting platform located on one side of the second opening and protruding toward the rear side of the face shell, the mounting platform forms a recess on the front side of the face shell, and a second mounting hole is provided on the mounting platform. The first mounting hole and the second mounting hole provided on the mounting foot are used for simultaneously allowing the same locking member to pass through.

[0031] In one embodiment, the face shell is provided with a third flange located on at least one of two opposite sides of the second opening, and the third flange abuts against one side of the display rear shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 A schematic structural perspective view of a display rear housing and circuit components of a water heater provided by an embodiment of the present invention;

[0033] Figure 2 A schematic diagram of the exploded structure of the display rear housing and circuit components of the water heater provided by an embodiment of the present invention;

[0034] Figure 3 for Figure 2 The enlarged schematic diagram of the M in the middle;

[0035] Figure 4 A schematic top view of the structure of the display rear housing and circuit components of the water heater provided by an embodiment of the present utility model;

[0036] Figure 5 for Figure 4 Cross-sectional view along the AA axis;

[0037] Figure 6 A schematic top view of the structure of the display rear housing of the water heater provided by an embodiment of the utility model;

[0038] Figure 7 A schematic structural diagram of a water heater housing assembly provided by an embodiment of the present invention;

[0039] Figure 8 A schematic diagram of the partial structural decomposition of the housing assembly of the water heater provided by an embodiment of the present utility model;

[0040] Figure 9 for Figure 8 Enlarged schematic diagram of position N in the middle;

[0041] Description of labels:

[0042] 100. Display back cover;

[0043] 1. Bottom plate; 11. Second limiting rib; 2. Side frame; 2a. Wire hole; 20. Notch; 201. First guide surface; 202. Second guide surface; 2b. Baffle; 21. First side panel; 210. First latching protrusion; 2101. First limiting surface; 2102. Third guide surface; 2103. First limiting strip; 22. Second side panel; 220. Second latching protrusion; 2201. Second limiting surface; 2202. Fourth guide surface; 2203. Third end; 2204. Fourth end; 23. Third side panel; 24. Fourth side panel; 25. First limiting rib; 250. Fifth guide surface; 26. Third latching protrusion; 27. Fourth latching protrusion; 28. Mounting foot; 280. First mounting hole; 3. Accommodating cavity; 31. First opening

[0044] 200, noodle shell;

[0045] 4. Second opening; 5. First flange; 50. First clamping hole; 6. Second flange; 60. Second clamping hole; 7. Mounting platform; 70. Second mounting hole; 71. Recess; 8. Third flange;

[0046] 3001, circuit assembly; 3001a, circuit board; 3002, display screen;

[0047] 400. Wiring harness. DETAILED DESCRIPTION

[0048] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0049] In the description of this application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0050] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. Throughout this application, unless otherwise specified, "plurality" means two or more.

[0051] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0052] like Figures 1 to 3 As shown, this embodiment provides a display back shell 100 of a water heater, including a bottom plate 1 and a side frame 2. The side frame 2 surrounds the bottom plate 1 and is connected to the edge of the bottom plate 1. A accommodating cavity 3 is formed between the side frame 2 and the bottom plate 1. A first opening 31 is formed on the side of the accommodating cavity 3 away from the bottom plate 1. The accommodating cavity 3 is used to accommodate the circuit component 3001 of the display. The side frame 2 is also provided with a wire hole 2a and a notch 20 that pass through along its own thickness direction. The notch 20 is connected between the wire hole 2a and the first opening 31. The width a of the notch 20 is smaller than the width b of the wire hole 2a. The wire hole 2a is used for passing the wiring harness 400 connected to the circuit component 3001.

[0053] By setting a notch 20 connected to the wire hole 2a on the side frame 2 of the display back shell 100, and making the width a of the notch 20 smaller than the width b of the wire hole 2a, the wire harness 400 can enter the wire hole 2a through the notch 20. Since the width a of the notch 20 is small, when the wire harness 400 passing through the wire hole 2a is not subjected to additional external force, it is not easy for the wire harness 400 to automatically pass through the notch 20 to detach from the wire hole 2a. This allows the operator to install the display back shell 100 to the face shell 200 without manually pulling apart the wire harness 400 and manually maintaining the state of the wire harness 400, thereby reducing the difficulty of the installation operation of the display back shell 100 and improving the installation efficiency of the display back shell 100.

[0054] Among them, Figure 3 As shown, the width a of the notch 20 is the minimum distance between the two opposite sides of the notch 20 along the direction surrounding the base plate 1, and the width b of the wire hole 2a is the maximum distance between the two opposite sides of the wire hole 2a along the direction surrounding the base plate 1.

[0055] It can be seen that the notch 20 has two opposite side surfaces along its own width direction. In one embodiment, the side surface of the notch 20 includes a first guide surface 201 close to the first opening 31. The closer the first guide surface 201 is to the first opening 31, the farther the distance between the first guide surface 201 and the opposite side surface is. Therefore, on the one hand, when the circuit component 3001 needs to be installed on the display back shell 100, the first guide surface 201 can be used to guide the wiring harness 400 from the outside of the side frame 2 into the notch 20 to reduce the difficulty of installing the circuit component 3001. On the other hand, it can avoid the existence of sharp corners at the edge of the notch 20, thereby avoiding the wiring harness 400 from hitting the sharp corners at the edge of the notch 20 and being damaged.

[0056] In one embodiment, the side of the notch 20 includes a second guide surface 202 close to the wire hole 2a. The closer the second guide surface 202 is to the wire hole 2a, the farther the second guide surface 202 is from the opposite side. Therefore, on the one hand, when the circuit component 3001 needs to be removed from the display back shell 100, the wiring harness 400 can be guided from the inside of the wire hole 2a into the notch 20 through the second guide surface 202 to reduce the difficulty of removing the circuit component 3001. On the other hand, it can avoid the presence of sharp corners at the edge of the notch 20, thereby avoiding the wiring harness 400 from hitting the sharp corners at the edge of the notch 20 and being damaged.

[0057] In one embodiment, the side surface of the notch 20 may include both a first guide surface 201 and a second guide surface 202, thereby reducing the difficulty of installing and removing the circuit assembly 3001, and reducing the possibility of damage to the wiring harness 400 during the installation and removal of the circuit assembly 3001.

[0058] Since the width a of the notch 20 is smaller than the width b of the wire passing hole 2a, in one embodiment, the side frame 2 is formed with a baffle portion 2b, which is located on the side of the wire passing hole 2a close to the notch 20, and the baffle portion 2b is located on at least one side of the notch 20 along its own width direction (for example, the baffle portion 2b can be located on any side of the notch 20 along its own width direction, or the notch 20 can be provided with a baffle portion 2b on both sides along its own width direction). The baffle portion 2b can prevent the wire harness 400 from escaping from the wire passing hole 2a. In other words, the baffle portion 2b can help the wire harness 400 passed through the wire passing hole 2a to maintain the state of being passed through the wire passing hole 2a, so that the operator does not need to manually pull apart the wire harness 400 and manually maintain the state of the wire harness 400 when installing the display back shell 100 to the face shell 200, thereby reducing the difficulty of the installation operation of the display back shell 100 and improving the installation efficiency of the display back shell 100.

[0059] Please combine Figure 4 and Figure 5As shown, in one embodiment, the side frame 2 includes a first side plate 21, a third side plate 23, a second side plate 22 and a fourth side plate 24 arranged in sequence around the bottom plate 1, the first side plate 21 is spaced apart from the second side plate 22, the third side plate 23 is spaced apart from the fourth side plate 24, the first side plate 21 is provided with a first locking protrusion 210, the first locking protrusion 210 is located in the accommodating cavity 3 and has a first limiting surface 2101 away from the first opening 31, the second side plate 22 is provided with a second locking protrusion 220, the second locking protrusion 220 is located in the accommodating cavity 3 and has a first limiting surface 2101 away from the first opening 31 The second limiting surface 2201 of the opening 31, the first limiting surface 2101 and the second limiting surface 2201 are all separated from the bottom plate 1. The first limiting surface 2101 and the second limiting surface 2201 are both used to abut against the surface of the circuit board 3001a of the circuit component 3001 facing away from the bottom plate 1, so that the circuit board 3001a can be limited between the first limiting surface 2101, the second limiting surface 2201 and the bottom plate 1 respectively through the first locking protrusion 210 and the second locking protrusion 220, thereby preventing the circuit component 3001 from automatically detaching from the display back cover 100 as a whole.

[0060] Among them, when installing the circuit component 3001 on the rear shell 100 of the display, the circuit component 3001 can be placed as a whole into the accommodating cavity 3 from the first opening 31, and the circuit component 3001 can be pressed to cause a certain elastic deformation of the circuit board 3001a, so that the circuit board 3001a enters the position between the first limiting surface 2101, the second limiting surface 2201 and the bottom plate 1 respectively.

[0061] In one embodiment, there may be one or more first latching protrusions 210, and there may be one or more second latching protrusions 220. When there are multiple first latching protrusions 210, the multiple first latching protrusions 210 are spaced apart in the direction surrounding the base plate 1. By increasing the number of first latching protrusions 210, the balance of the limiting effect of the first latching protrusions 210 on the circuit board 3001a can be improved. When there are multiple second latching protrusions 220, the multiple second latching protrusions 220 are spaced apart in the direction surrounding the base plate 1. By increasing the number of second latching protrusions 220, the balance of the limiting effect of the second latching protrusions 220 on the circuit board 3001a can be improved.

[0062] In one embodiment, along the relative direction of the first side panel 21 and the second side panel 22, the projection of the first latching protrusion 210 on the second side panel 22 is staggered with the second latching protrusion 220, so that when the circuit assembly 3001 is installed on the display rear cover 100, the elastic deformation required to occur at a local position of the circuit board 3001a is relatively small. That is, along the relative direction of the first side panel 21 and the second side panel 22, the circuit board 3001a does not need to deform to make its own size smaller than or equal to the distance between the first latching protrusion 210 and the second latching protrusion 220. As long as the size of a part of its own position is smaller than or equal to the distance between the first latching protrusion 210 and the second side panel 22, and the size of another part of its own position is smaller than or equal to the distance between the second latching protrusion 220 and the first side panel 21, it can enter the position between the first limiting surface 2101, the second limiting surface 2201 and the bottom plate 1 respectively, thereby reducing the installation pressing force required when the circuit assembly 3001 is installed on the display rear cover 100.

[0063] In an optional embodiment, the first latching protrusion 210 has a third guide surface 2102 facing away from the first side panel 21. The closer the third guide surface 2102 is to the first opening 31, the farther the third guide surface 2102 is from the second side panel 22. Therefore, when installing the circuit component 3001 on the display back shell 100, the third guide surface 2102 can be used to guide the circuit board 3001a into between the end where the first limiting surface 2101 of the first latching protrusion 210 is located and the second side panel 22, thereby reducing the difficulty of installing the circuit component 3001.

[0064] In another optional embodiment, the second latching protrusion 220 has a fourth guide surface 2202 facing away from the second side panel 22. The closer the fourth guide surface 2202 is to the first opening 31, the farther the fourth guide surface 2202 is from the first side panel 21. Therefore, when installing the circuit component 3001 on the display back shell 100, the fourth guide surface 2202 can be used to guide the circuit board 3001a into between the end where the second limiting surface 2201 of the second latching protrusion 220 is located and the first side panel 21, so as to reduce the difficulty of installing the circuit component 3001.

[0065] In another optional embodiment, the limiting surface of at least one of the first latching protrusion 210 and the second latching protrusion 220 is spaced from the side panel on which the latching protrusion is provided, and the latching protrusion is elastic, that is, the first latching protrusion 210 and / or the second latching protrusion 220 is an elastic clip, and the free end of the elastic clip extends obliquely toward the middle and bottom of the accommodating cavity 3, so that when the circuit component 3001 is installed on the display rear shell 100, the elastic clip can be elastically deformed so that the free end of the elastic clip is close to the side panel on which the elastic clip is provided, thereby reducing the deformation amplitude requirement for the circuit board 3001a, and further reducing the installation pressing force required when installing the circuit component 3001 on the display rear shell 100, thereby further reducing the installation difficulty of the circuit component 3001.

[0066] When the first latch 210 is an elastic latch, for example, the first latch 210 may have a first end and a second end relative to each other, the first end is connected to the first side plate 21, the second end is the free end of the first latch 210, the second end is spaced apart from the first side plate 21, and the end face of the second end is the first limiting surface 2101.

[0067] like Figure 5 As shown, when the second latch 220 is an elastic latch, for example, the second latch 220 may have a third end 2203 and a fourth end 2204 relative to each other, the third end 2203 is connected to the second side plate 22, the fourth end 2204 is the free end of the second latch 220, the fourth end 2204 is spaced from the second side plate 22, and the end face of the fourth end 2204 is the second limiting surface 2201.

[0068] In addition, at least one of the first latching protrusion 210 and the second latching protrusion 220 may be less prone to elastic deformation. In one embodiment, for the latching protrusion that is less prone to elastic deformation, the latching protrusion may also include a limit bar, which is located between the limit surface of the latching protrusion and the bottom plate 1. The limit bar is used to abut against the side of the circuit board 3001a to limit the position of the circuit board 3001a in the accommodating cavity 3 along the relative direction of the first side plate 21 and the second side plate 22, so as to reduce the shaking amplitude of the circuit board 3001a in the relative direction along the first side plate 21 and the second side plate 22.

[0069] Taking the first protrusion 210 as an example, which is not easy to be elastically deformed, Figure 3 As shown, the first locking protrusion 210 may further include a first limiting strip 2103 , and the first limiting strip 2103 is located between the first limiting surface 2101 of the first locking protrusion 210 and the bottom plate 1 .

[0070] In one embodiment, the first latching protrusion 210 and the second latching protrusion 220 can simultaneously satisfy at least two of the three optional embodiments described above, so as to make it easier to install the circuit component 3001 on the display rear housing 100 .

[0071] Please also see Figure 2 、 Figure 4 and Figure 6 In one embodiment, the third side panel 23 or the fourth side panel 24 is provided with a first limiting rib 25, or both the third side panel 23 and the fourth side panel 24 are provided with a first limiting rib 25, and the first limiting rib 25 is located in the accommodating cavity 3, and the first limiting rib 25 is used to abut against the side of the circuit board 3001a, and the first limiting rib 25 is used to limit the position of the circuit board 3001a in the accommodating cavity 3 along the relative direction of the third side panel 23 and the fourth side panel 24, so as to reduce the shaking amplitude of the circuit board 3001a in the relative direction along the third side panel 23 and the fourth side panel 24.

[0072] In one embodiment, the first limiting rib 25 has a fifth guide surface 250 facing away from the side panel on which it is provided. The closer the fifth guide surface 250 is to the first opening 31, the farther the fifth guide surface 250 is from the spaced-apart side panel. Thus, the fifth guide surface 250 can be used to guide the circuit board 3001a into between the first limiting rib 25 and the side panel opposite to the first limiting rib 25, thereby reducing the difficulty of installing the circuit component 3001.

[0073] Specifically, for the first limiting rib 25 provided on the third side plate 23, the fifth guide surface 250 of the first limiting rib 25 faces away from the third side plate 23, and the closer the fifth guide surface 250 is to the first opening 31, the farther the distance between the fifth guide surface 250 and the fourth side plate 24. For the first limiting rib 25 provided on the fourth side plate 24, the fifth guide surface 250 of the first limiting rib 25 faces away from the fourth side plate 24, and the closer the fifth guide surface 250 is to the first opening 31, the farther the distance between the fifth guide surface 250 and the third side plate 23.

[0074] In one embodiment, there may be one or more first limiting ribs 25 provided on the third side panel 23. When there are multiple first limiting ribs 25 provided on the third side panel 23, the multiple first limiting ribs 25 are arranged at intervals along the direction surrounding the base plate 1. By increasing the number of first limiting ribs 25 provided on the third side panel 23, the balance of the limiting effect of the first limiting ribs 25 on the circuit board 3001a can be improved.

[0075] In one embodiment, there may be one or more first limiting ribs 25 provided on the fourth side panel 24. When there are multiple first limiting ribs 25 provided on the fourth side panel 24, the multiple first limiting ribs 25 are spaced apart along the direction surrounding the base plate 1. By increasing the number of first limiting ribs 25 provided on the fourth side panel 24, the balance of the limiting effect of the first limiting ribs 25 on the circuit board 3001a can be improved.

[0076] Please combine Figure 5As shown, in one embodiment, the base plate 1 is provided with a second limiting rib 11, and the second limiting rib 11 is located in the accommodating cavity 3. The second limiting rib 11 is used to abut against the board surface of the circuit board 3001a facing the base plate 1, so that the second limiting rib 11 can work together with the first clamping protrusion 210 and the second clamping protrusion 220 to limit the circuit board 3001a to the position between the first limiting surface 2101, the second limiting surface 2201 and the second limiting rib 11 respectively, thereby reducing the amplitude of the circuit board 3001a shaking in the direction relative to the first opening 31 along the base plate 1,

[0077] In one embodiment, there may be multiple second limiting ribs 11, and the multiple second limiting ribs 11 are arranged at intervals along the edge of the base plate 1, so that the balance of the limiting effect of the second limiting ribs 11 on the circuit board 3001a can be improved by increasing the number of second limiting ribs 11.

[0078] In one embodiment, the display rear housing 100 may be provided with both the first limiting rib 25 and the second limiting rib 11 to reduce the amplitude of shaking of the circuit board 3001a in the accommodating cavity 3.

[0079] In one embodiment, a third latching protrusion 26 and a fourth latching protrusion 27 are provided on the outer periphery of the side frame 2. The third latching protrusion 26 and the fourth latching protrusion 27 are respectively located on two opposite sides of the side frame 2. The third latching protrusion 26 and the fourth latching protrusion 27 are respectively used to be latched to an external latching structure, so that the display rear cover 100 can be latched to an external latching structure (for example, Figure 9 The water heater housing 200 has a snap-on structure as shown in the figure), so that the installation method of the display rear housing 100 and the external structure is simple and easy to operate.

[0080] In one embodiment, there may be one or more third latching protrusions 26, and there may be one or more fourth latching protrusions 27. When there are multiple third latching protrusions 26, the multiple third latching protrusions 26 are spaced apart in the direction surrounding the base plate 1, and the connection balance between the side frame 2 and the external structure can be improved by increasing the number of third latching protrusions 26. When there are multiple fourth latching protrusions 27, the multiple fourth latching protrusions 27 are spaced apart in the direction surrounding the base plate 1, and the connection balance between the side frame 2 and the external structure can be improved by increasing the number of second latching protrusions 220.

[0081] In one embodiment, the outer periphery of the side frame 2 is provided with a mounting foot 28, and the mounting foot 28 is provided with a through first mounting hole 280. The first mounting hole 280 is used for a locking member (not shown in the figure) to pass through so that the mounting member is locked and connected to an external mounting structure (for example, Figure 9 The mounting structure of the water heater face shell 200 shown in FIG) can improve the mounting stability of the display rear shell 100 and the external structure. The locking member may include but is not limited to a bolt, a screw, and a combination of a bolt and a nut.

[0082] In one embodiment, a third latching protrusion 26 and a fourth latching protrusion 27 can be provided on the outer periphery of the side frame 2, and a mounting foot 28 can be provided on the outer periphery of the side frame 2. At this time, the mounting foot 28 is spaced apart from the third latching protrusion 26 and the fourth latching protrusion 27, so that the installation method of the display rear cover 100 and the external structure can be simple, easy to operate and more stable.

[0083] Specifically, in the process of installing the display back shell 100 to the external structure, the operator can first clamp the display back shell 100 to the external clamping structure through the third clamping protrusion 26 and the fourth clamping protrusion 27 to first make the relative position of the display back shell 100 and the external structure relatively fixed, and then pass the locking piece through the first mounting hole 280 and lock it to the external mounting structure. Therefore, in the process of passing the locking piece through the first mounting hole 280 and locking it to the external mounting structure, there is no need for additional manual fixation of the relative position of the display back shell 100 and the external structure, thereby making the installation operation of the display back shell 100 and the external structure simpler.

[0084] In addition, when there are multiple third latching protrusions 26 and / or fourth latching protrusions 27, since the third latching protrusions 26 and the fourth latching protrusions 27 can form at least one latching position arranged in a triangle, when the display back cover 100 is latched to the external latching structure through the third latching protrusions 26 and the fourth latching protrusions 27, the third latching protrusions 26 and the fourth latching protrusions 27 can prevent the display back cover 100 from rotating relative to the external structure. Therefore, there is no need to manually fix the relative position of the display back cover 100 and the external structure when installing the locking member.

[0085] like Figures 7 to 9 As shown, this embodiment also provides a water heater housing 200 assembly, including: a housing 200 and a display rear housing 100 as described in the above embodiment. Figure 1 、 Figure 5 The face shell 200 shown is provided with a through second opening 4, the display screen 3002 of the display is arranged to face the front side of the face shell 200 for displaying, and the display screen 3002 is used to cover the second opening 4, the display rear shell 100 is installed on the rear side of the face shell 200, and the first opening 31 is connected to the second opening 4. Since the installation operation of the display rear shell 100 on the face shell 200 is relatively low in difficulty and the installation efficiency is relatively high, the assembly difficulty of the face shell 200 components can be reduced and the assembly efficiency of the face shell 200 components can be improved.

[0086] The rear side of the housing 200 refers to the side of the housing 200 facing the interior of the water heater, that is, the side facing away from the display surface of the display screen 3002 .

[0087] When, as described in the aforementioned embodiment, the outer periphery of the side frame 2 is provided with a third latching protrusion 26 and a fourth latching protrusion 27, in one embodiment, the face shell 200 is provided with a first flange 5 and a second flange 6 located on two opposite sides of the second opening 4, the first flange 5 is provided with a first latching hole 50, the third latching protrusion 26 is latched in the first latching hole 50, the second flange 6 is provided with a second latching hole 60, and the fourth latching protrusion 27 is latched in the second latching hole 60, thereby enabling the display rear shell 100 to be latched in the face shell 200.

[0088] At least one of the first flange 5 and the second flange 6 can be elastically deformed, so that the operation of clamping the display rear housing 100 to the front housing 200 is less difficult and requires less installation force.

[0089] When, as described in the aforementioned embodiment, mounting feet 28 are provided on the periphery of the side frame 2, in one embodiment, a second mounting hole 70 is provided through the face shell 200, and the first mounting hole 280 and the second mounting hole 70 are used to allow the same locking member to pass through at the same time, so that the face shell 200 and the display rear shell 100 can be locked together by the locking member.

[0090] In one embodiment, the face shell 200 is provided with a mounting platform 7 located on one side of the second opening 4 and protruding toward the rear side of the face shell 200. The mounting platform 7 forms a recess 71 on the front side of the face shell 200, and a second mounting hole 70 is provided on the mounting platform 7. Therefore, when the mounting platform 7 is locked with the display rear shell 100 by a locking member, part of the locking member can be located in the recess 71 formed by the mounting platform 7 on the front side of the face shell 200, so as to reduce the protruding height of the locking member protruding from the front side of the face shell 200, so as to improve the surface flatness of the water heater and reduce the possibility of the locking member being hit during the use and transportation of the water heater.

[0091] It can be understood that the front side of the surface shell 200 refers to the side of the surface shell 200 facing the outside of the water heater, that is, the side to which the display surface of the display screen 3002 faces.

[0092] In one embodiment, the face shell 200 is provided with a third flange 8 located on at least one of the two opposite sides of the second opening 4, and the third flange 8 abuts against one side of the display rear shell 100, so that the relative position of the display rear shell 100 and the face shell 200 can be limited by the third flange 8, so that the operator can align the first opening 31 of the display rear shell 100 with the second opening 4 of the face shell 200 when installing the display rear shell 100.

[0093] When the third flanges 8 are provided on both opposite sides of the second opening 4, the third flanges 8 provided on the two opposite sides of the second opening 4 respectively abut against the two opposite sides of the display rear shell 100, so that the third flanges 8 have a better limiting effect on the relative position of the display rear shell 100 and the front shell 200.

[0094] When the face shell 200 is provided with a first flange 5 and a second flange 6 as described in the aforementioned technical solution, the first flange 5, the second flange 6 and the third flange 8 are respectively located on different sides of the second opening 4. In other words, along the direction surrounding the second opening 4, the first flange 5, the third flange 8 and the second flange 6 are arranged in sequence, so that the first flange 5, the second flange 6 and the third flange 8 can respectively limit the position of the display back shell 100 from different sides of the second opening 4.

[0095] In the specific contents of the above-mentioned specific implementation methods, the various technical features can be combined in any non-contradictory manner. In order to make the description concise, not all possible combinations of the above-mentioned technical features are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0096] The specific contents of the above-mentioned specific embodiments only express several embodiments of the present invention. Although the description is relatively specific and detailed, it should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be based on the appended claims.

Claims

1. A display back cover of a water heater, characterized in that: include: Bottom plate (1); as well as, a side frame (2), the side frame (2) surrounding the bottom plate (1) and connected to the edge of the bottom plate (1), a receiving cavity (3) being formed between the side frame (2) and the bottom plate (1), a first opening (31) being formed on a side of the receiving cavity (3) away from the bottom plate (1), the receiving cavity (3) being used to receive a circuit component (3001) of a display; The side frame (2) is further provided with a wire hole (2a) and a notch (20) that pass through along the thickness direction of the side frame (2); the notch (20) is connected between the wire hole (2a) and the first opening (31); the width a of the notch (20) is smaller than the width b of the wire hole (2a); the wire hole (2a) is used for passing a wire harness (400) connected to the circuit assembly (3001).

2. The display rear housing of the water heater according to claim 1, characterized in that: The notch (20) has two opposite side surfaces along its width direction; The side surface includes a first guide surface (201) close to the first opening (31), and the closer the first guide surface (201) is to the first opening (31), the farther the first guide surface (201) is from the opposite side surface; and / or, the side surface includes a second guide surface (202) close to the wire hole (2a), and the closer the second guide surface (202) is to the wire hole (2a), the farther the second guide surface (202) is from the opposite side surface.

3. The display rear housing of the water heater according to claim 1, characterized in that: The side frame (2) is formed with a baffle portion (2b), the baffle portion (2b) is located on a side of the wire hole (2a) close to the notch (20), and the baffle portion (2b) is located on at least one side of the notch (20) along its own width direction.

4. The display rear housing of the water heater according to claim 1, characterized in that: The side frame (2) comprises a first side plate (21), a third side plate (23), a second side plate (22) and a fourth side plate (24) which are sequentially arranged around the bottom plate (1), the first side plate (21) and the second side plate (22) being spaced apart and facing each other, and the third side plate (23) and the fourth side plate (24) being spaced apart and facing each other; The first side plate (21) is provided with a first latching protrusion (210), the first latching protrusion (210) is located in the accommodating cavity (3) and has a first limiting surface (2101) facing away from the first opening (31), the second side plate (22) is provided with a second latching protrusion (220), the second latching protrusion (220) is located in the accommodating cavity (3) and has a second limiting surface (2201) facing away from the first opening (31), the first limiting surface (2101) and the second limiting surface (2201) are both spaced apart from the bottom plate (1), and the first limiting surface (2101) and the second limiting surface (2201) are both used to abut against the surface of the circuit board (3001a) of the circuit assembly (3001) facing away from the bottom plate (1).

5. The display rear housing of the water heater according to claim 4, characterized in that: Along the relative direction of the first side plate (21) and the second side plate (22), the projection of the first clamping protrusion (210) on the second side plate (22) is staggered with the second clamping protrusion (220).

6. The display rear housing of the water heater according to claim 4, characterized in that: The first latching protrusion (210) has a third guide surface (2102) facing away from the first side plate (21), and the closer the third guide surface (2102) is to the first opening (31), the farther the distance between the third guide surface (2102) and the second side plate (22) becomes; and / or, The second latching protrusion (220) has a fourth guide surface (2202) facing away from the second side plate (22); the closer the fourth guide surface (2202) is to the first opening (31), the farther the fourth guide surface (2202) is from the first side plate (21).

7. The display rear housing of the water heater according to claim 4, characterized in that: The first latching protrusion (210) and / or the second latching protrusion (220) is an elastic latch, and the free end of the elastic latch extends obliquely toward the middle and bottom of the accommodating cavity (3).

8. The display rear housing of the water heater according to claim 4, characterized in that: The third side plate (23) and / or the fourth side plate (24) are provided with a first limiting rib (25), the first limiting rib (25) being located in the accommodating cavity (3), the first limiting rib (25) being used to abut against the side surface of the circuit board (3001a); and / or, The bottom plate (1) is provided with a second limiting rib (11), the second limiting rib (11) is located in the accommodating cavity (3), and the second limiting rib (11) is used to abut against the surface of the circuit board (3001a) facing the bottom plate (1).

9. The display rear housing of the water heater according to any one of claims 1 to 8, characterized in that: A third latching protrusion (26) and a fourth latching protrusion (27) are provided on the outer periphery of the side frame (2), the third latching protrusion (26) and the fourth latching protrusion (27) are respectively located on two opposite sides of the side frame (2), and the third latching protrusion (26) and the fourth latching protrusion (27) are respectively used to be latched to an external latching structure; and / or, The outer periphery of the side frame (2) is provided with a mounting foot (28), and the mounting foot (28) is provided with a through first mounting hole (280), and the first mounting hole (280) is used for a locking member to pass through.

10. A water heater housing assembly, characterized in that: include: A face shell (200) and a display rear shell (100) as described in any one of claims 1 to 9, wherein the face shell (200) is provided with a through second opening (4), the display screen (3002) of the display is arranged to face the front side of the face shell (200), and the display screen (3002) is used to cover the second opening (4), the display rear shell (100) is mounted on the rear side of the face shell (200), and the first opening (31) is connected to the second opening (4).

11. The water heater housing assembly according to claim 10, characterized in that: When the outer periphery of the side frame (2) is provided with a third latching protrusion (26) and a fourth latching protrusion (27), the face shell (200) is provided with a first flange (5) and a second flange (6) located on two opposite sides of the second opening (4), the first flange (5) is provided with a first latching hole (50), the third latching protrusion (26) is latched in the first latching hole (50), the second flange (6) is provided with a second latching hole (60), and the fourth latching protrusion (27) is latched in the second latching hole (60); When the outer periphery of the side frame (2) is provided with a mounting foot (28), the face shell (200) is provided with a mounting platform (7) located on one side of the second opening (4) and protruding toward the rear side of the face shell (200), the mounting platform (7) forms a recess (71) on the front side of the face shell (200), and a second mounting hole (70) is provided through the mounting platform (7), and the first mounting hole (280) and the second mounting hole (70) provided on the mounting foot (28) are used for simultaneously allowing the same locking member to pass through.

12. The water heater housing assembly according to claim 10 or 11, characterized in that: The face shell (200) is provided with a third flange (8) located on at least one of two opposite sides of the second opening (4), and the third flange (8) abuts against one side of the display rear shell (100).

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