Circuit board shield and water heater

Abstract

The utility model relates to the technical field of circuit board protection, in particular to a circuit board shield and a water heater, which comprise a shield main body, the shield main body is rectangular, the shield main body is provided with an inclined plane, the gradient of the inclined plane is 2-3 degrees, heat dissipation areas are arranged on two sides of the inclined plane, the heat dissipation areas comprise a main heat dissipation area and an auxiliary heat dissipation area, the main heat dissipation area is hexagonal, and the auxiliary heat dissipation area is rectangular. The main heat dissipation area is located at the position close to the center of the shield body, the auxiliary heat dissipation area is located at the edge of the shield body, and the area of the auxiliary heat dissipation area is smaller than that of the main heat dissipation area. A wiring part is arranged on the side face, close to the auxiliary heat dissipation area, of the shield body and provided with an inclined opening, and the inclined opening is used for containing an electric wire. The shield main body is used for arranging wires and effectively protecting a circuit board, so that the interior of the water heater is tidier; and meanwhile, the protective cover body can protect electronic elements when the water heater is maintained, a circuit board is prevented from being accidentally collided and damaged, and the nylon material can play a role in partial heat insulation and static electricity prevention.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board protection, in particular to a circuit board shield and a water heater. Background Art

[0002] Due to the low cost and high integration of circuit boards, they are now widely used in the field of electric water heaters. In existing instant water heaters, the circuit board usually needs to be electrically connected to the electric heating device through wires. A large number of scattered wires will not only make the internal space of the water heater more crowded, but also increase safety hazards. At present, the wires inside the water heater are mostly simply bound by devices such as cable ties. Although cable ties can collect and organize the wires, they usually need to be cut off when the water heater needs to replace parts or repair a fault. This method is prone to waste and may also cause damage to the wires due to frequent pulling on the wires, or the wires at the connection may become loose or even detached, causing safety hazards. At the same time, it may also touch completely exposed electronic components and cause damage to the electronic components. Therefore, the internal structure of the existing water heater needs to be improved. Utility Model Content

[0003] The utility model aims to provide a circuit board shield and a water heater, aiming to solve the problem of scattered wires inside the existing water heater.

[0004] In order to achieve the above-mentioned purpose, the utility model provides a circuit board shield, including a shield body, the shield body is rectangular, the shield body is provided with an inclined surface, the slope of the inclined surface is 2°-3°, and heat dissipation areas are provided on both sides of the inclined surface, the heat dissipation areas include a main heat dissipation area and an auxiliary heat dissipation area, the main heat dissipation area is hexagonal, and the main heat dissipation area is located near the center of the shield body, the auxiliary heat dissipation area is located at the edge of the shield body, and the area of ​​the auxiliary heat dissipation area is smaller than that of the main heat dissipation area; a wiring portion is provided on the side of the shield body near the auxiliary heat dissipation area, the wiring portion is provided with an inclined opening, and the inclined opening is used to place wires; two groups of locking columns are also provided on the shield body, the two groups of locking columns are diagonally arranged on the shield body, and through holes are provided in the locking columns.

[0005] Furthermore, an extension portion is provided on the shield body, and a cover plate is provided at the extension portion; and a support column is provided on the side of the shield body away from the extension portion.

[0006] Furthermore, reinforcing ribs are provided on the shield body, and the reinforcing ribs are provided at the edges of the main heat dissipation area and the auxiliary heat dissipation area; the shield body is made of nylon material.

[0007] A water heater includes a shell, characterized in that the shell includes a bottom plate, side plates and an upper cover, the side plates are installed on the bottom plate, and the upper cover is installed on the side plates. The bottom plate, the side plates and the upper cover enclose a first cavity, and a heat source component and a circuit board are arranged in the first cavity. The heat source component is used to heat the water flow, and the circuit board is installed on the bottom plate through a bottom box. A circuit board shield is also installed on the bottom plate, and the shield body is installed on the bottom plate through a locking column.

[0008] Furthermore, the heat source assembly includes a heat pipe shell, a heating pipe, a hot water pipe and a connecting pipe. The heat pipe shell is installed on the base plate. Two second cavities are provided in the heat pipe shell. Heating pipes are installed in the second cavities. Hot water pipes are installed in the heating pipes. The connecting pipe is used to connect the hot water pipes in the two groups of second cavities. A sealing ring is provided at the connection between the connecting pipe and the heating pipe; the heating pipe is electrically connected to the circuit board through wires.

[0009] Furthermore, multiple circulating water pipes are arranged inside the hot water pipe, and a spiral water channel is provided outside the hot water pipe, which is connected to the circulating water pipe; the two second cavities on the heat pipe shell are respectively connected to the water inlet pipe and the water outlet pipe, and the heat pipe shell is also provided with a hollow opening, and a thermal conductive copper sheet is installed at the hollow opening, and a temperature sensor is provided on the thermal conductive copper sheet, and a cover is also provided at the thermal conductive copper sheet.

[0010] Furthermore, a water flow meter is provided on the water inlet pipe.

[0011] Furthermore, an N-shaped groove is opened on the side plate, and one end of the water inlet pipe and the water outlet pipe extends to the outside of the side plate through the N-shaped groove. The water inlet pipe and the water outlet pipe are both provided with a threaded section on the side extending outside the side plate.

[0012] Furthermore, a control panel is provided in the first cavity, and the control panel is mounted on the side panel.

[0013] Furthermore, a water heater thermostat is provided on the bottom plate.

[0014] Compared with the prior art, the circuit board shield and water heater provided by the present invention have a shield body for organizing wires and effectively protecting circuit boards, making the interior of the water heater tidier; at the same time, the shield body can also protect electronic components when repairing the water heater, preventing accidental bumps and damage to the circuit boards, and the nylon material can also play a partial heat-insulating and anti-static role. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a three-dimensional view of a circuit board shield in the utility model;

[0016] Figure 2 This is a front view of a circuit board shield in the utility model;

[0017] Figure 3 yes Figure 2 Cross-sectional view of the middle AA part;

[0018] Figure 4 This is a rear view of a circuit board shield in the utility model;

[0019] Figure 5 This is a side view of a circuit board shield in the utility model;

[0020] Figure 6 This is a three-dimensional view of a water heater in the utility model;

[0021] Figure 7 This is a view of the internal structure of a water heater in the utility model;

[0022] Figure 8 This is a front view of a water heater in the utility model with the upper cover removed;

[0023] Figure 9 This is an installation view of a circuit board shield, a circuit board and a bottom box in the utility model;

[0024] Figure 10 It is a three-dimensional view of the heat source component in the utility model;

[0025] Figure 11 It is a three-dimensional cross-sectional view of the heat source component in the utility model;

[0026] Figure 12 yes Figure 11 A partial enlarged view of part A;

[0027] Figure 13 is a three-dimensional cross-sectional view of the heating tube;

[0028] Figure 14 It is a three-dimensional view of the hot water pipe in the utility model.

[0029] Description of reference numerals:

[0030] Wherein: 1. Shield body; 10. Inclined surface; 11. Main heat dissipation area; 12. Auxiliary heat dissipation area; 13. Wiring area; 14. Inclined opening; 15. Support column; 16. Extension part; 17. Cover plate; 18. Locking column; 19. Reinforcement ribs;

[0031] 2. Shell; 20. Bottom plate; 21. Side plate; 22. Upper cover;

[0032] 3. Circuit board; 30. Bottom box;

[0033] 4. Heat source assembly; 40. Heat pipe housing; 41. Connecting pipe; 42. Hot water pipe; 420. Circulating water pipe; 421. Spiral water channel; 43. Heating pipe; 44. Thermal conductive copper sheet; 45. Cover;

[0034] 5. Water inlet pipe; 50. Water flow meter;

[0035] 6. Water outlet pipe;

[0036] 7. Control panel;

[0037] 8. Water heater thermostat. DETAILED DESCRIPTION

[0038] The present invention will be described in detail below with reference to specific embodiments.

[0039] In the present utility model, unless otherwise expressly provided and limited, when terms such as "set on", "connected", and "connected" appear, these terms should be understood in a broad sense. For example, they can be fixedly connected, detachably connected, or integrally connected; they can be directly connected or connected through one or more intermediate media. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances. The directional words that appear in the present utility model are for the purpose of better explaining the characteristics of the features and the relationship between the features. It should be understood that when the placement direction of the present utility model changes, the characteristics of the features and the direction of the relationship between the features also change accordingly. Therefore, the directional words do not constitute an absolute limitation on the characteristics of the features and the relationship between the features in space, but only play a relative limitation role.

[0040] like Figures 1 to 5 As shown, according to the first aspect of the utility model, the utility model provides a circuit board shield, including a shield body 1, the shield body 1 is rectangular, the shield body 1 is provided with an inclined surface 10, the slope of the inclined surface 10 is 2°-3°, and heat dissipation areas are provided on both sides of the inclined surface 10, the heat dissipation areas include a main heat dissipation area 11 and an auxiliary heat dissipation area 12, the main heat dissipation area 11 is hexagonal, and the main heat dissipation area 11 is located near the center of the shield body 1, the auxiliary heat dissipation area 12 is located at the edge of the shield body 1, and the area of ​​the auxiliary heat dissipation area 12 is smaller than the area of ​​the main heat dissipation area 11; a wiring portion 13 is provided on the side of the shield body 1 close to the auxiliary heat dissipation area 12, and the wiring portion 13 is provided with an inclined opening 14, and the inclined opening 14 is used to place wires.

[0041] With the above-mentioned design, when in use, the staff only needs to first electrically connect the circuit board 3 with the other electronic components through wires, then organize the wires and cover the shield body 1. The wiring portion 13 of the shield body 1 can press the wires tightly against the bottom plate 20 of the water heater described later, avoiding the potential safety hazards caused by the confusion of wires inside the water heater; the inclined opening 14 of the wiring portion 13 can facilitate the passage of a large number of wires. The circuit board 3 will generate heat after being powered on. The main heat dissipation area 11 and the auxiliary heat dissipation area 12 are both located in the parts of the circuit board 3 where the electronic components with higher heat are located, avoiding damage to the circuit board 3 due to excessive temperature. The auxiliary heat dissipation area 12 is also located at the interface position of the circuit board 3, which is convenient for maintenance personnel to directly observe the connection status of the wires and the circuit board 3.

[0042] In this embodiment, an extension portion 16 is provided on the shield body 1, and a cover plate 17 is provided at the extension portion 16; a support column 15 is provided on the shield body 1 on the side away from the extension portion 16; two groups of locking columns 18 are also provided on the shield body 1, and the two groups of locking columns 18 are diagonally arranged on the shield body 1, and through holes are provided in the locking columns 18.

[0043] In this embodiment, the shield body 1 is provided with reinforcing ribs 19, located at the edges of the primary heat dissipation area 11 and the auxiliary heat dissipation area 12. The shield body 1 is made of nylon. Nylon has excellent antistatic properties, protecting the circuit board 3 from static electricity. It also provides excellent thermal insulation, preventing excessive temperatures in the circuit board 3 area from aging, discoloring, or deforming the water heater housing.

[0044] like Figures 6 to 14 As shown, this embodiment also provides a water heater, including a shell 2, the shell 2 includes a bottom plate 20, a side plate 21 and an upper cover 22, the side plate 21 is installed on the bottom plate 20, and the upper cover 22 is installed on the side plate 21, the bottom plate 20, the side plate 21 and the upper cover 22 enclose a first cavity, and a heat source component 4 and a circuit board 3 are arranged in the first cavity. The heat source component 4 is used to heat the water flow, and the circuit board 3 is installed on the bottom plate 20 through the bottom box 30. The above-mentioned circuit board shield is also installed on the bottom plate 20, and the shield body 1 is installed on the bottom plate 20 through the locking column 18.

[0045] Since the water heater housing 2 is usually made of ABS material, ABS material will age, fade and deform in a high temperature environment for a long time. Although the main heat dissipation area 11 and the auxiliary heat dissipation area 12 will dissipate the heat generated by the circuit board 3, the heat generated by the remaining parts covered by the protective cover body 1 will be isolated, thereby reducing the heat conducted to the water heater housing 2 and extending the service life of the water heater housing 2.

[0046] In this embodiment, the heat source assembly 4 includes a heat pipe housing 40, a heating pipe 43, a hot water pipe 42 and a connecting pipe 41. The heat pipe housing 40 is installed on the base plate 20. Two second cavities are provided in the heat pipe housing 40. The heating pipe 43 is installed in the second cavity. The hot water pipe 42 is installed in the heating pipe 43. The connecting pipe 41 is used to connect the hot water pipes 42 in the two groups of second cavities. A sealing ring is provided at the connection between the connecting pipe 41 and the heating pipe 43; the heating pipe 43 is electrically connected to the circuit board 3 through wires.

[0047] In this embodiment, multiple circulating water pipes 420 are provided inside the hot water pipe 42, and a spiral water channel 421 is provided outside the hot water pipe 42, which is connected to the circulating water pipe 420; the two second cavities on the heat pipe shell 40 are respectively connected to the water inlet pipe 5 and the water outlet pipe 6, and the heat pipe shell 40 is also provided with a hollow opening, and a heat-conducting copper sheet 44 is installed at the hollow opening, and a temperature sensor is provided on the heat-conducting copper sheet 44. A cover 45 is also provided on the heat-conducting copper sheet 44.

[0048] Through the above design scheme, water flows into the circulating water pipe 420 in a group of second cavities, and then flows into the spiral water channel 421 from the bottom. The water flows from the bottom to the top of the spiral water channel 421, and then flows back to another group of circulating water pipes 420 to complete the preliminary heating. Then, the water that has undergone preliminary heating enters another group of second cavities through the connecting pipe 41, and flows through the hot water pipe 42 again to repeat the last heating process, so as to ensure that the output water temperature can reach the preset temperature.

[0049] The spiral water channel 421 effectively extends the path of the water flow and increases the heating time of the water flow. Because the water inlet of the spiral water channel 421 is at the bottom and the water outlet is at the top, the water can evenly fill the spiral water channel 421 during flow. When the water flows into the spiral water channel 421, the heating tube 43 can effectively heat the water in the spiral water channel 421. In this embodiment, the outer diameter of the spiral water channel 421 is consistent with the inner diameter of the heating tube 43, ensuring that the water flow can only flow along the spiral water channel 421. The sealing rubber ring provided at the connection between the connecting tube 41 and the heating tube 43 ensures a tight seal between the two, preventing water leakage and potential safety hazards.

[0050] In this embodiment, a gap is provided between the heating pipe 43 and the heat pipe shell 40 , and the heat pipe shell 40 is made of a high-temperature resistant insulation material, which can insulate the heating pipe 43 while preventing the heating pipe 43 from being damaged by excessive temperature.

[0051] The heat-conducting copper sheet 44 is used to conduct the heat of the heating tube 43 and transfer the heat to the temperature sensor. The cover 45 at the heat-conducting copper tube can cover the hollow opening to prevent high temperature from escaping from the hollow opening.

[0052] In this embodiment, a water flow meter 50 is provided on the water inlet pipe 5 .

[0053] In this embodiment, an N-shaped groove is formed in the side panel 21. One end of the water inlet pipe 5 and the water outlet pipe 6 extend through the groove to the outside of the side panel 21. Both the water inlet pipe 5 and the water outlet pipe 6 are provided with a threaded section on the side extending outside the side panel 21. The threaded section at one end of the water inlet pipe 5 is used to connect to an external tap water pipe, while the threaded section at one end of the water outlet pipe 6 is used to connect to a water outlet device such as a shower head. A water flow meter 50 on the water inlet pipe 5 can detect and record the water flow in real time.

[0054] In this embodiment, a control panel 7 is provided in the first cavity and mounted on the side panel 21. The control panel 7 is provided with a display and control buttons. The upper cover 22 is provided with a transparent area corresponding to the control panel 7. The transparent area is used to display the display, and the user can operate the water heater through the control buttons.

[0055] In this embodiment, the water heater thermostat 8 is mounted on the base plate 20. The water heater thermostat 8 is located on a cover plate 17, which shields the electrical connection contacts of the water heater thermostat 8. The cover plate 17 is used to conceal the connection contacts between the water heater thermostat 8 and the electrical wiring, preventing accidental damage to the connection contacts during maintenance of the water heater's heating components. Since the water heater thermostat 8 is an existing component of common water heaters and is not a key improvement of this embodiment, it is not described in detail in this embodiment.

[0056] The utility model provides a circuit board shield for a water heater. Compared with the prior art, the shield body 1 is used to organize wires and can effectively protect the circuit board 3, making the interior of the water heater more tidy; at the same time, the shield body 1 can also protect electronic components when repairing the water heater, avoiding accidental bumps and damage to the circuit board 3, and the nylon material can also play an anti-static role.

[0057] In the absence of conflict, the above embodiments and features therein may be combined with each other.

[0058] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit the scope of protection of the utility model. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.

Claims

1. A circuit board cover, characterized in that: The invention comprises a shield body (1), the shield body (1) is rectangular, an inclined surface (10) is provided on the shield body (1), the slope of the inclined surface (10) is 2°-3°, heat dissipation areas are provided on both sides of the inclined surface (10), the heat dissipation areas include a main heat dissipation area (11) and an auxiliary heat dissipation area (12), the main heat dissipation area (11) is hexagonal, and the main heat dissipation area (11) is located near the center of the shield body (1), and the auxiliary heat dissipation area (12) is located at the edge of the shield body (1). The auxiliary heat dissipation zone (12) is located at a position where the area of ​​the auxiliary heat dissipation zone (12) is smaller than the area of ​​the main heat dissipation zone (11); a wiring portion (13) is provided on the side of the shield body (1) close to the auxiliary heat dissipation zone (12); the wiring portion (13) is provided with an inclined opening (14); the inclined opening (14) is used to place wires; and two groups of locking columns (18) are also provided on the shield body (1), the two groups of locking columns (18) are diagonally arranged on the shield body (1), and through holes are provided in the locking columns (18).

2. A circuit board shield according to claim 1, characterized in that: An extension portion (16) is provided on the shield body (1), and a cover plate (17) is provided at the extension portion (16); and a support column (15) is provided on the side of the shield body (1) away from the extension portion (16).

3. The circuit board shield according to claim 1, wherein: Reinforcing ribs (19) are provided on the shield body (1), and the reinforcing ribs (19) are provided at the edges of the main heat dissipation area (11) and the auxiliary heat dissipation area (12); the shield body (1) is made of nylon material.

4. A water heater comprising a housing (2), characterized in that: The shell (2) includes a bottom plate (20), a side plate (21) and an upper cover (22), wherein the side plate (21) is mounted on the bottom plate (20), and the upper cover (22) is mounted on the side plate (21). The bottom plate (20), the side plate (21) and the upper cover (22) enclose a first cavity, in which a heat source component (4) and a circuit board (3) are arranged. The heat source component (4) is used to heat the water flow, and the circuit board (3) is mounted on the bottom plate (20) through a bottom box (30). A circuit board shield according to any one of claims 1 to 3 is also mounted on the bottom plate (20), and the shield body (1) is mounted on the bottom plate (20) through a locking column (18).

5. A water heater according to claim 4, characterized in that: The heat source assembly (4) comprises a heat pipe housing (40), a heating pipe (43), a hot water pipe (42) and a connecting pipe (41). The heat pipe housing (40) is mounted on a bottom plate (20). Two second cavities are provided in the heat pipe housing (40). The heating pipe (43) is installed in the second cavity. The hot water pipe (42) is installed in the heating pipe (43). The connecting pipe (41) is used to connect the hot water pipes (42) in the two groups of second cavities. A sealing ring is provided at the connection between the connecting pipe (41) and the heating pipe (43). The heating pipe (43) is electrically connected to the circuit board (3) through an electric wire.

6. A water heater according to claim 5, characterized in that: A plurality of circulating water pipes (420) are arranged inside the hot water pipe (42), and a spiral water channel (421) is arranged outside the hot water pipe (42), and the spiral water channel (421) is connected to the circulating water pipe (420); the two second cavities on the heat pipe shell (40) are respectively connected to the water inlet pipe (5) and the water outlet pipe (6); the heat pipe shell (40) is also provided with a hollow opening, and a heat-conducting copper sheet (44) is installed at the hollow opening, and a temperature sensor is arranged on the heat-conducting copper sheet (44); and a cover (45) is also provided on the heat-conducting copper sheet (44).

7. A water heater according to claim 6, characterized in that: A water flow meter (50) is provided on the water inlet pipe (5).

8. The water heater according to claim 6, characterized in that: An n-shaped groove is formed on the side plate (21), and one end of the water inlet pipe (5) and the water outlet pipe (6) extend out of the side plate (21) through the n-shaped groove. The water inlet pipe (5) and the water outlet pipe (6) are both provided with a threaded section on the side extending out of the side plate (21).

9. The water heater according to claim 4, characterized in that: A control panel (7) is provided in the first cavity, and the control panel (7) is mounted on the side panel (21).

10. The water heater according to claim 4, characterized in that: A water heater thermostat (8) is provided on the bottom plate (20).

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