Shell assembly and water heater with good sealing effect

Abstract

The present invention provides a shell assembly and a water heater with good sealing effect. The shell assembly includes an outer shell, a sealing ring, a rubber cover and a temperature sensing mechanism, which is arranged on the rubber cover, and the temperature sensing mechanism is connected to the interior of the outer shell through the connecting hole. The shell assembly and the water heater with good sealing effect provided by the present invention use a sealing ring to increase the sealing effect between the rubber cover and the outer shell, reduce the complexity of the installation structure of the temperature sensing package, and at the same time, can increase the size of the installation hole as much as possible to facilitate the installation of other structures inside the outer shell (such as the subsequent assembly of the patch temperature sensing package, etc.), and also increase the assembly of the rubber cover to prevent fooling and self-checking effects. At the same time, a fixing clip is used to overcome the problem that the outer shell is thin and easy to slip when matched with the bolt, and a plurality of waterproof ribs are provided to prevent rainwater from entering the outer shell and the temperature sensing structure, further increasing the sealing effect.

Description

Technical Field

[0001] The invention relates to the technical field of hot water equipment, in particular to a shell component and a water heater with good sealing effect. Background Art

[0002] At present, the water tank of air-energy water heaters is equipped with at least one temperature-sensing package for detecting the water temperature in the water tank, and most of them adopt a patch structure. Studs are welded on the middle section of the inner tank, and a through hole with a diameter of 60mm is opened on the outer shell of the water heater tank. The inner tank assembly is hoisted into the inner tank shell, and the space between the inner tank assembly and the through hole of the water tank shell is filled with a hollow annular sponge. A tool is put on the opening of the water tank shell to protect the sponge from deformation during foaming. After the foaming is completed, the tool is removed. The temperature sensing head of the temperature-sensing package is first set through the coil component, and the coil component is pre-assembled and fixed on the temperature-sensing package rubber cover. An O-ring is sleeved on the outer ring of the temperature-sensing package rubber cover. The temperature-sensing package is clamped through the through hole of the water tank shell. The temperature-sensing package is fastened to the stud of the inner tank assembly with a nut, and a cylindrical sponge is embedded in the hollow part between the water tank shell and the inner tank. Then the temperature-sensing package rubber cover assembly is buckled onto the through hole of the water tank shell, and the matching part between the rubber cover and the water tank shell is sealed by an O-ring. However, the sealing reliability of the cylindrical rubber cover of the water tank shell is not high, which leads to the hidden danger of water outside the water tank entering the inside. The water entering the inside comes into contact with the temperature sensing head of the temperature sensing package, which can easily cause corrosion and failure of the temperature sensing head. Water can also penetrate into the heat exchanger, causing corrosion and fluorine leakage of the heat exchanger, eventually causing the water heater tank to be scrapped. Summary of the invention

[0003] In order to solve the technical problems of complex installation structure and poor sealing effect of the temperature sensing package in the prior art, a shell assembly and a water heater with good sealing effect are provided, which adopt a sealing ring and a rubber cover to cooperate with each other to increase the sealing effect.

[0004] A housing assembly, comprising:

[0005] A housing, wherein a mounting hole is provided on the housing;

[0006] A sealing ring, the sealing ring having a first side surface and a second side surface opposite to each other and a connecting hole connecting the first side surface and the second side surface, the sealing ring being arranged at the mounting hole, and the first side surface being attached to the outer wall of the housing;

[0007] A rubber cover, arranged on the second side surface by at least two locking mechanisms;

[0008] The electronic component is arranged on the rubber cover, and the electronic component is communicated with the interior of the shell through the communication hole.

[0009] The rubber cover is provided with a fixing piece. When the rubber cover is buckled on the second side surface, the fixing piece abuts against the inner wall of the shell, and the fixing piece constitutes a locking mechanism.

[0010] The cross-section of the fixing piece is L-shaped, and the fixing piece includes a connecting section and an abutting section, the first end of the connecting section is arranged on the rubber cover, the first end of the abutting section is arranged on the second end of the connecting section, and the side surface of the abutting section abuts against the inner wall of the shell.

[0011] The dimension between the first end of the connecting section and the second end of the connecting section is less than or equal to the sum of the thickness of the sealing ring and the thickness of the outer shell.

[0012] The housing is provided with a mounting groove, and the connecting section extends into the mounting groove.

[0013] The housing assembly further comprises a locking bolt, which passes through the rubber cover and the sealing ring in sequence and is then locked and fixed to the housing.

[0014] The housing assembly further comprises a fixing clip, which is arranged on the housing. The locking bolt passes through the rubber cover and the sealing ring in sequence and is then locked and fixed with the fixing clip.

[0015] The fixing clamp includes a first clamping surface, a second clamping surface and an elastic structure, the first clamping surface and the second clamping surface are both arranged on the elastic structure, and the elastic structure is a driving force for the first clamping surface to approach the second clamping surface, the first clamping surface is attached to the inner wall of the outer shell, the second clamping surface is attached to the outer wall of the outer shell, and the locking bolt penetrates the second clamping surface and is locked with the first clamping surface.

[0016] The second clamping surface is provided with a protrusion facing the first clamping surface, the outer shell is provided with a positioning groove matched with the protrusion, and when the fixing clip is arranged on the outer shell, the protrusion extends into the positioning groove.

[0017] A waterproof rib is arranged on the first side surface, the bottom end of the waterproof rib is arranged on the sealing ring, and the top end of the waterproof rib abuts against the outer wall of the shell.

[0018] There are multiple waterproof ribs, and all of the waterproof ribs are arranged in parallel on the first side.

[0019] The waterproof rib is in the shape of a ring, and the diameter of the ring is larger than the maximum size of the mounting hole.

[0020] The edge of the sealing ring is bent toward the outer wall of the shell to form a waterproof outer ring, the bottom end of the waterproof outer ring is fixedly arranged with the edge of the sealing ring, and the top end of the waterproof outer ring abuts against the outer wall of the shell.

[0021] A water heater comprises the above-mentioned shell assembly.

[0022] The shell assembly and water heater with good sealing effect provided by the present invention utilize a sealing ring to increase the sealing effect between the rubber cover and the shell, reduce the complexity of the installation structure of the temperature sensing package, and at the same time can increase the size of the installation hole as much as possible to facilitate the installation of other structures inside the shell (such as the subsequent assembly of the patch temperature sensing package, etc.), and also increase the assembly of the rubber cover to prevent fooling and self-checking effects. At the same time, a fixing clip is utilized to overcome the problem that the shell size is thin and easy to slip when matched with the bolts, and a plurality of waterproof ribs are provided to prevent rainwater and the like from entering the shell and the temperature sensing structure, further increasing the sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic structural diagram of a housing assembly with good sealing effect and a housing assembly of an embodiment of a water heater provided by the present invention;

[0024] Figure 2 A schematic structural diagram of a housing assembly with good sealing effect and a shell of an embodiment of a water heater provided by the present invention;

[0025] Figure 3 A schematic structural diagram of a sealing ring of an embodiment of a housing assembly and a water heater with good sealing effect provided by the present invention;

[0026] Figure 4 A cross-sectional view of a sealing ring of an embodiment of a housing assembly and a water heater with good sealing effect provided by the present invention;

[0027] Figure 5 A schematic structural diagram of a housing assembly with good sealing effect and a rubber cover of an embodiment of a water heater provided by the present invention;

[0028] Figure 6 A cross-sectional view of a housing assembly with good sealing effect and a rubber cover of an embodiment of a water heater provided by the present invention;

[0029] Figure 7 A schematic structural diagram of a fixing clip of an embodiment of a housing assembly and a water heater with good sealing effect provided by the present invention;

[0030] Figure 8 A cross-sectional view of a fixing clip of an embodiment of a housing assembly and a water heater with good sealing effect provided by the present invention;

[0031] In the figure:

[0032] 1. Shell; 11. Mounting hole; 2. Sealing ring; 21. First side surface; 22. Second side surface; 23. Connecting hole; 3. Rubber cover; 4. Fixing piece; 41. Connecting section; 42. Abutting section; 5. Locking bolt; 6. Fixing clamp; 61. First clamping surface; 62. Second clamping surface; 63. Elastic structure; 64. Protrusion; 7. Waterproof rib; 8. Waterproof outer ring. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0034] like Figures 1 to 8 The shell assembly shown includes: a shell 1, a mounting hole 11 is provided on the shell 1, and the interior of the shell 1 constitutes a accommodating chamber for accommodating water; a sealing ring 2, the sealing ring 2 having a first side surface 21 and a second side surface 22 opposite to each other and a connecting hole 23 connecting the first side surface 21 and the second side surface 22, the sealing ring 2 is arranged at the mounting hole 11, and the first side surface 21 is attached to the outer wall of the shell 1, that is, the sealing ring 2 is arranged on the outer wall of the shell 1 around the mounting hole 11, when the first side surface 21 is attached to the outer wall of the shell 1, the sealing ring 2 can seal the surrounding of the mounting hole 11, and when the mounting ring is annular, the diameter of the mounting ring is larger than the mounting hole 1 1; the rubber cover 3 is arranged on the second side surface 22 by at least two locking mechanisms, and the rubber cover 3 and the sealing ring 2 are fixed to the outer wall of the shell 1 by using multiple locking mechanisms, and the multiple locking mechanisms realize multi-point fixation to increase the sealing effect; the electronic component is arranged on the rubber cover 3, and the electronic component is connected with the interior (accommodating cavity) of the shell 1 through the connecting hole 23. When installing the temperature sensing mechanism, it is only necessary to directly set the temperature sensing mechanism on the rubber cover 3, and then lock and fix the rubber cover 3, which simplifies the installation structure of the temperature sensing mechanism. At the same time, the sealing ring 2 can further increase the sealing effect, wherein the electronic component includes detection mechanisms such as a temperature sensing package and a pressure sensor.

[0035] The rubber cover 3 is provided with a fixing part 4. When the rubber cover 3 is buckled on the second side surface 22, the fixing part 4 abuts against the inner wall of the outer shell 1. The fixing part 4 constitutes a locking mechanism. The fixing part 4 abuts against the inner wall of the outer shell 1 to achieve fixation, and the rubber cover 3 abuts against the outer wall of the outer shell 1 to fix the rubber cover 3.

[0036] The cross-section of the fixing member 4 is L-shaped, and the fixing member 4 includes a connecting section 41 and an abutting section 42. The first end of the connecting section 41 is arranged on the rubber cover 3, and the first end of the abutting section 42 is arranged on the second end of the connecting section 41. The side surface of the abutting section 42 abuts against the inner wall of the shell 1. The connecting section 41 is used to ensure a certain distance between the abutting section 42 and the rubber cover 3, so that the fixing member 4 can be easily extended into the interior of the shell 1 through the mounting hole 11, and space is also reserved for the sealing member to be arranged between the rubber cover 3 and the shell 1.

[0037] The dimension between the first end of the connecting section 41 and the second end of the connecting section 41 is less than or equal to the sum of the thickness of the sealing ring 2 and the thickness of the outer shell 1, that is, the distance between the rubber cover 3 and the abutting section 42 is less than the sum of the thickness of the sealing ring 2 and the thickness of the outer shell 1, thereby enabling transition fit or interference fit fixation of the rubber cover 3 to be achieved.

[0038] The housing 1 is provided with a mounting groove, and the connecting section 41 extends into the mounting groove, which ensures that the rubber cover 3 can be arranged at a specific position, and also prevents the connecting section 41 from sliding with the housing 1 to affect the sealing effect of the rubber cover 3.

[0039] The housing assembly further comprises a locking bolt 5 , which passes through the rubber cover 3 and the sealing ring 2 in sequence and is then locked and fixed to the housing 1 , and the locking spiral constitutes another locking mechanism.

[0040] The shell assembly also includes a fixing clip 6, which is arranged on the outer shell 1. The locking bolt 5 passes through the rubber cover 3 and the sealing ring 2 in sequence and is locked and fixed with the fixing clip 6. The fixing clip 6 is used to overcome the problem that the outer shell 1 is too thin and the bolt is easy to slip.

[0041] The fixing clamp 6 includes a first clamping surface 61, a second clamping surface 62 and an elastic structure 63, wherein the first clamping surface 61 and the second clamping surface 62 are both arranged on the elastic structure 63, and the elastic structure 63 is a driving force for the first clamping surface 61 to approach the second clamping surface 62, the first clamping surface 61 is attached to the inner wall of the outer shell 1, the second clamping surface 62 is attached to the outer wall of the outer shell 1, and the locking bolt 5 penetrates the second clamping surface 62 and is locked with the first clamping surface 61. Preferably, the cross-section of the elastic structure 63 is a triangle, and the first clamping surface 61 and the second clamping surface 62 are arranged on the same side or the same vertex of the triangle.

[0042] The second clamping surface 62 is provided with a protrusion 64 facing the first clamping surface 61, and the shell 1 is provided with a positioning groove 12 cooperating with the protrusion 64. When the fixing clip 6 is set on the shell 1, the protrusion 64 extends into the positioning groove 12 to limit the position between the fixing clip 6 and the shell 1 and prevent the fixing clip 6 from sliding on the shell 1.

[0043] A waterproof rib 7 is provided on the first side surface 21 , the bottom end of the waterproof rib 7 is provided on the sealing ring 2 , and the top end of the waterproof rib 7 abuts against the outer wall of the outer shell 1 to prevent rainwater and the like from entering into the inner part of the outer shell 1 through the mounting hole 11 .

[0044] There are multiple waterproof ribs 7, and all of the waterproof ribs 7 are arranged in parallel on the first side surface 21, thereby forming multiple waterproof defense lines and increasing the sealing effect of the shell assembly.

[0045] The waterproof rib 7 is annular, and the diameter of the ring is larger than the maximum size of the mounting hole 11, that is, the waterproof rib 7 completely surrounds the mounting hole 11, thereby increasing the sealing effect.

[0046] The edge of the sealing ring 2 is bent toward the outer wall of the outer shell 1 to form a waterproof outer ring 8. The bottom end of the waterproof outer ring 8 is fixed to the edge of the sealing ring 2, and the top end of the waterproof outer ring 8 is in contact with the outer wall of the outer shell 1, further increasing the sealing effect and achieving a completely waterproof effect.

[0047] A shielding strip is provided at the edge of the sealing ring 2 , and a gap is provided between the shielding strip and the first side surface 21 of the sealing ring 2 . The edge of the rubber cover 3 extends into the gap and is fixed, so as to further enhance the sealing effect between the sealing ring 2 and the rubber cover 3 .

[0048] The rubber cover 3 and the sealing ring 2 are both designed with a square curvature with the shell 1 to better fit the shell 1. Preferably, the shell is cylindrical. Since the shell has a certain curvature, the sealing gasket and the rubber cover are both designed with a shell-shaped curvature. In order to better fit the shell, the sealing gasket must also change with the radius R value of the shell.

[0049] A water heater comprises the above-mentioned shell assembly.

[0050] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A housing assembly, characterized in that: include: A housing (1), wherein a mounting hole (11) is provided on the housing (1); a sealing ring (2), the sealing ring (2) having a first side surface (21) and a second side surface (22) opposite to each other, and a connecting hole (23) connecting the first side surface (21) and the second side surface (22), the sealing ring (2) being arranged at the mounting hole (11), and the first side surface (21) being attached to the outer wall of the housing (1); A rubber cover (3) is arranged on the second side surface (22) via at least two locking mechanisms; An electronic component is arranged on the rubber cover (3), and the electronic component is connected to the interior of the housing (1) through the communication hole (23); The rubber cover (3) is provided with a fixing member (4), and when the rubber cover (3) is buckled on the second side surface (22), the fixing member (4) abuts against the inner wall of the outer shell (1), and the fixing member (4) constitutes a locking mechanism; The cross section of the fixing member (4) is L-shaped, and the fixing member (4) comprises a connecting section (41) and an abutting section (42), the first end of the connecting section (41) is arranged on the rubber cover (3), the first end of the abutting section (42) is arranged on the second end of the connecting section (41), and the side surface of the abutting section (42) abuts against the inner wall of the outer shell (1); The dimension between the first end of the connecting section (41) and the second end of the connecting section (41) is less than or equal to the sum of the thickness of the sealing ring (2) and the thickness of the housing (1); The housing (1) is provided with a mounting groove, and the connecting section (41) extends into the mounting groove; A waterproof rib (7) is provided on the first side surface (21), the bottom end of the waterproof rib (7) is provided on the sealing ring (2), and the top end of the waterproof rib (7) abuts against the outer wall of the housing (1); The edge of the sealing ring (2) is bent toward the outer wall of the housing (1) to form a waterproof outer ring (8); the bottom end of the waterproof outer ring (8) is fixedly arranged with the edge of the sealing ring (2); and the top end of the waterproof outer ring (8) is in contact with the outer wall of the housing (1).

2. The housing assembly according to claim 1, characterized in that: The housing assembly further comprises a locking bolt (5), wherein the locking bolt (5) sequentially penetrates the rubber cover (3) and the sealing ring (2) and is then locked and fixed to the housing (1).

3. The housing assembly according to claim 2, characterized in that: The housing assembly further comprises a fixing clip (6), wherein the fixing clip (6) is arranged on the housing (1), and the locking bolt (5) passes through the rubber cover (3) and the sealing ring (2) in sequence and is then locked and fixed with the fixing clip (6).

4. The housing assembly according to claim 3, characterized in that: The fixing clamp (6) comprises a first clamping surface (61), a second clamping surface (62) and an elastic structure (63); the first clamping surface (61) and the second clamping surface (62) are both arranged on the elastic structure (63), and the elastic structure (63) is a driving force for the first clamping surface (61) to approach the second clamping surface (62); the first clamping surface (61) is attached to the inner wall of the outer shell (1), the second clamping surface (62) is attached to the outer wall of the outer shell (1), and the locking bolt (5) penetrates the second clamping surface (62) and is locked with the first clamping surface (61).

5. The housing assembly according to claim 4, characterized in that: The second clamping surface (62) is provided with a protrusion (64) facing the first clamping surface (61), and the housing (1) is provided with a positioning groove (12) cooperating with the protrusion (64). When the fixing clamp (6) is arranged on the housing (1), the protrusion (64) extends into the positioning groove (12).

6. The housing assembly according to claim 1, characterized in that: The number of the waterproof ribs (7) is plural, and all the waterproof ribs (7) are arranged in parallel on the first side surface (21).

7. The housing assembly according to claim 1, characterized in that: The waterproof rib (7) is in the shape of a ring, and the diameter of the ring is greater than the maximum size of the mounting hole (11).

8. A water heater, characterized in that: A housing assembly comprising any one of claims 1 to 7.

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