Terminal plate structure, electric control box assembly and water heater

Abstract

The utility model discloses a terminal board structure, electric control box subassembly and water heater relates to electric control box technical field, and the terminal board structure includes the first seat for grounding, the first seat is in the first direction one side and is the installation side, and the first seat has via hole, and the periphery of via hole is folded and forms at least one bending part to the installation side of first seat, and the height and the gradient of bending part are used for with the connecting part of circuit board structure or the cover of electric control box subassembly adapts, and the setting of bending part has the cooperation hole to be connected with the corresponding connecting part. Directly through numerical control bending can form via hole and bending part in the installation side processing, and the gradient control of bending part guarantees and the connecting part of circuit board structure or the cover of electric control box subassembly is inlaid, and the height control makes up the fit spacing between the installation side and the cover of circuit board structure or electric control box subassembly, and the cooperation hole can be realized through simple punching, need not to carry out batch mould development, reduces production cost.

Description

Technical Field

[0001] This utility model relates to the field of electrical control box technology, and in particular to terminal board structure, electrical control box assembly and water heater. Background Technology

[0002] In existing manufacturing sectors, large-scale production commonly employs mold-making technology or a combination of mold making and CNC machining. Mold making, due to its high efficiency, high consistency, and low marginal cost, has become the preferred solution for mass production, suitable for the large-scale manufacturing of mature products. However, this technology has significant limitations: mold development involves complex design, trial molding, and mold repair processes, with development cycles typically lasting weeks to months, and initial investment costs are high. For small-batch customized products, initial products testing the market, or differentiated product categories strategically positioned by enterprises, this processing technology can impact development cycles and squeeze profit margins. Utility Model Content

[0003] The main purpose of this utility model is to propose a terminal board structure, an electrical control box assembly, and a water heater that can balance processing cycle and processing cost, and can be adapted to existing assembly parts.

[0004] To achieve the above objectives, this utility model proposes a terminal board structure for a water heater. The terminal board structure includes a first base for grounding, with one side of the first base in a first direction being the mounting side. The first base has a through hole, and the periphery of the through hole is folded towards the mounting side of the first base to form at least one bent portion. The height and slope of the bent portion are adapted to fit the connection part of the cover of the circuit board structure or the electrical control box assembly. The bent portion is provided with a mating hole for connection with the corresponding connection part.

[0005] In one embodiment, at least two bending portions are provided, the two bending portions are staggered and respectively connect the two side edges of the through hole in opposite directions, and the two bending portions are respectively used for connecting the cover of the circuit board structure and the electrical control box assembly.

[0006] In one embodiment, the two bent portions have a height difference in a first direction; and / or,

[0007] At least one of the bent portions has an end face facing away from the mounting side that is inclined.

[0008] In one embodiment, the mounting side is further provided with a plurality of snap-fit ​​holes for engaging with the cover of the electrical control box assembly; and / or,

[0009] The side edge of the first base has a flange extending in a direction away from the mounting side, and the edge of the flange is folded inward.

[0010] In one embodiment, the terminal block structure further includes:

[0011] The second seat is set at an angle to the first seat and is located on the side of the first seat that faces away from the mounting side in the first direction;

[0012] A third seat, connecting the first seat and the second seat; and,

[0013] The connecting plate is located at the side end of the first seat and is integrated with the first seat, the second seat and the third seat.

[0014] This utility model also proposes an electrical control box assembly, comprising:

[0015] A terminal board structure, including the terminal board structure described above, the terminal board structure includes at least a first base for grounding, the first base having a mounting side in a first direction, the first base having a through hole, the periphery of the through hole being folded towards the mounting side of the first base to form at least one bent portion, the height and slope of the bent portion being adapted to the connection part of the cover of the circuit board structure or the electrical control box assembly, the bent portion being provided with a mating hole for connection with the corresponding connection part;

[0016] A circuit board structure is located on the mounting side of the terminal board structure;

[0017] A cover is provided on the outside of the circuit board structure. The cover includes a fixing part and a folding part arranged sequentially along a second direction. The fixing part is fixed to the terminal plate. One end of the folding part in the second direction is connected to the fixing part, and the other end is rotatable relative to the fixing part. During the rotation of the folding part, it has a closed position that together with the fixing part covers the circuit board structure, and an open position that exposes a part of the circuit board structure.

[0018] In one embodiment, the electrical control box assembly further includes a limiting structure, which includes a limiting protrusion and a limiting hole. One of the limiting protrusion and the limiting hole is located in the fixing part, and the other is located in the folding part. The limiting protrusion can be engaged and installed into the limiting hole to fix the folding part in the open position.

[0019] In one embodiment, the fixing part is provided with a support rib on the side facing away from the circuit board structure, and the middle of the support rib is provided with the limiting hole extending in a third direction.

[0020] The folding part is provided with the limiting protrusion, the limiting protrusion and the supporting rib are staggered in the third direction, and the end faces of the limiting protrusion and the supporting rib facing each other are provided with a first guide slope.

[0021] In one embodiment, the support rib has a mating side end, which protrudes toward the limiting clip when the folded portion is in the open position. At least a portion of the mating side end away from the circuit board structure is inclined outward along a first direction to form a second guide slope.

[0022] In one embodiment, the fixing part has a first mating protrusion on the side facing away from the circuit board structure, and the folding part has a second mating protrusion corresponding to the first mating protrusion. The second mating protrusion and the first mating protrusion are arranged close to each other, and the second mating protrusion can abut against the first mating protrusion during the rotation of the folding part.

[0023] In one embodiment, the cover is made of a flexible material, and a through groove is formed on the inner side of the cover in a third direction, the groove dividing the cover into the fixing part and the folding part.

[0024] In one embodiment, the groove includes a first groove segment and a second groove segment arranged adjacent to each other, wherein the depth of the first groove segment is less than the depth of the second groove segment.

[0025] In one embodiment, the distance between the bottom wall of the first groove segment and the cover is L1, where 0.5mm ≤ L1 ≤ 0.7mm; and / or,

[0026] The distance between the bottom wall of the second groove section and the cover is L2, 0.18mm≤L2≤0.43mm; and / or,

[0027] Multiple first slots and multiple second slots are provided, and multiple first slots and multiple second slots are provided alternately.

[0028] In one embodiment, a gripping portion protrudes from the side of the folding portion facing away from the fixing portion.

[0029] In one embodiment, the terminal block structure is further provided with multiple snap holes on the mounting side;

[0030] The folding part is provided with a plurality of buckles on the side away from the fixing part, which are corresponding to the plurality of buckle holes. When the folding part is in the closed position, the plurality of buckles are inserted into the plurality of buckle holes.

[0031] This utility model also proposes a water heater, including the above-mentioned electrical control box assembly, wherein the electrical control box assembly includes at least:

[0032] A terminal board structure, including the terminal board structure described above, the terminal board structure includes at least a first base for grounding, the first base having a mounting side in a first direction, the first base having a through hole, the periphery of the through hole being folded towards the mounting side of the first base to form at least one bent portion, the height and slope of the bent portion being adapted to the connection part of the cover of the circuit board structure or the electrical control box assembly, the bent portion being provided with a mating hole for connection with the corresponding connection part;

[0033] A circuit board structure is located on the mounting side of the terminal board structure;

[0034] A cover is provided on the outside of the circuit board structure. The cover includes a fixing part and a folding part arranged sequentially along a second direction. The fixing part is fixed to the terminal plate. One end of the folding part in the second direction is connected to the fixing part, and the other end is rotatable relative to the fixing part. During the rotation of the folding part, it has a closed position that together with the fixing part covers the circuit board structure, and an open position that exposes a part of the circuit board structure.

[0035] In the technical solution of this utility model, through holes and bent parts can be directly formed on the mounting side by CNC bending. The protruding height and bending shape of the bent parts are adapted to the relevant mating parts. That is, the slope of the bent parts is controlled to ensure that they fit snugly with the connection part of the circuit board structure or the cover of the electrical control box assembly. The height is controlled to compensate for the mating gap between the mounting side and the cover of the circuit board structure or the electrical control box assembly. Thus, it is possible to adapt to the assembly requirements of the parts while reducing costs and processing cycle. The mating holes can be achieved by simple punching, so there is no need to develop batch molds, reducing production costs and improving production efficiency. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0037] Figure 1 A schematic diagram of the structure of an embodiment of the water heater provided by this utility model;

[0038] Figure 2 for Figure 1 A schematic diagram of the middle terminal block structure (at one angle);

[0039] Figure 3 for Figure 1A schematic diagram of the middle terminal block structure (from another angle);

[0040] Figure 4 for Figure 3 A schematic cross-sectional view along the middle AA section;

[0041] Figure 5 for Figure 1 A schematic diagram showing the combination of the intermediate terminal block structure and the circuit board structure;

[0042] Figure 6 for Figure 1 Schematic diagram of the middle cover (closed position);

[0043] Figure 7 for Figure 6 Top view of the middle cover;

[0044] Figure 8 for Figure 7 A magnified schematic diagram of part B in the middle;

[0045] Figure 9 for Figure 1 A structural diagram of the middle cover (open position);

[0046] Figure 10 for Figure 9 A partial cross-sectional view along the CC axis;

[0047] Figure 11 for Figure 1 A structural diagram showing the connection point between the central fixing part and the folding part;

[0048] Figure 12 for Figure 11 A schematic cross-sectional view of the middle DD;

[0049] Figure 13 for Figure 11 A schematic cross-sectional view of the middle section EE.

[0050] Explanation of icon numbers:

[0051] 1000, Water heater; 100, Terminal board structure; 11, First base; 12, Second base; 13, Third base; 14, Connecting plate; 1a, Flanged edge; 1b, Through hole; 2, Bending part; 21, Mating hole; 3, Locking hole; 200, Circuit board structure; 300, Cover; 310, Fixing part; 311, First mating protrusion; 320, Folding part; 321, Second mating protrusion; 322, Buckle; 331, Limiting buckle protrusion; 332, Limiting buckling hole; 340, Support rib; 341, Second guide slope; 350, First guide slope; 361, First groove segment; 362, Second groove segment; 370, Grip part.

[0052] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0053] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0054] It should be noted that if the embodiments of this utility model involve directional indication, the directional indication is only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0055] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0056] It should be noted that the first direction, the second direction, and the third direction mentioned in this embodiment are directions that intersect each other in space. The first direction can correspond to the front-back direction, the second direction can correspond to the left-right direction, and the third direction can correspond to the up-down direction. The three directions can also be changed according to the actual placement of the product.

[0057] Please refer to Figures 1 to 3 The terminal block structure 100 includes a first base 11 for grounding. The first base 11 has a mounting side on one side in a first direction. The first base 11 has a through hole 1b. The periphery of the through hole 1b is folded towards the mounting side of the first base 11 to form at least one bent portion 2. The height and slope of the bent portion 2 are adapted to the connection part of the circuit board structure 200 or the cover 300 of the electrical control box assembly. The bent portion 2 is provided with a mating hole 21 to connect with the corresponding connection part.

[0058] In the technical solution of this utility model, the through hole 1b and the bent part 2 can be directly formed on the mounting side by CNC bending. The protruding height and bending shape of the bent part 2 are adapted to the relevant mating parts. That is, the slope of the bent part 2 is controlled to ensure that it fits the connection part with the circuit board structure 200 or the cover 300 of the electrical control box assembly. The height control compensates for the mating gap between the mounting side and the circuit board structure 200 or the cover 300 of the electrical control box assembly. Thus, it can adapt to the parts assembly requirements while reducing costs and processing cycle. The mating hole 21 can be realized by simple punching, so there is no need to develop batch molds, reducing production costs and improving production efficiency.

[0059] Specifically, the terminal block structure 100 is generally a metal plate. After being connected to the circuit board structure 200, it can realize the grounding of the circuit board structure 200. In this structure, it mainly plays the functions of support and connection.

[0060] To ensure the flatness of the mating end face between the bent part 2 and the circuit board structure 200 or the cover 300, the mating hole 21 should be turned inward when machining the mating hole 21, so as to ensure the fitting accuracy while ensuring the connection strength.

[0061] In some embodiments, at least two bending portions 2 are provided, which are staggered and respectively connect to two opposite side edges of the through hole 1b in the second direction. The two bending portions 2 are respectively used for connecting the circuit board structure 200 and the cover 300 of the electrical control box assembly. Specifically, the staggered orientation of the two bending portions 2 is determined according to the fit between the circuit board structure 200 and the cover 300. Figure 2 In one embodiment, the two bent portions 2 are staggered in both the third and second directions.

[0062] It should be understood that the shape of the through hole 1b will vary depending on the number, position and size of the bending part 2.

[0063] According to the adaptation requirements of the terminal board structure 100, when two or more bending portions 2 are provided, the height, size, and slope of the multiple bending portions 2 can be the same or different. In some embodiments, there is a height difference between the two bending portions 2 in a first direction. For example, the bending portion 2 corresponding to the circuit board structure 200 is higher than the bending portion 2 corresponding to the cover 300. In some embodiments, the end face of at least one bending portion 2 facing away from the mounting side is inclined. For example, the end face corresponding to the bending portion 2 of the cover 300 is inclined. However, it should be understood that the form of inclination is not limited. For example, the bending portion 2 can be inclined in the direction from one end connected to the edge of the through hole 1b to the other end. In this case, the bending portion 2 is a sheet structure and presents an overall inclination. Another example is that the bending portion 2 forms a step shape after bending. In this case, the bending portion 2 has multiple bending segments, and the bending segments that contact the circuit board structure 200 or the cover 300 are inclined. In this case, the bending portion 2 is only partially inclined.

[0064] In the technical solution of this embodiment, please refer to Figure 4 The two bent portions 2 include a first bent portion 2 and a second bent portion 2. The first bent portion 2 is stepped, and the second bent portion 2 is inclined in a sheet-like shape. The first bent portion 2 and the second bent portion 2 are offset in a second direction and a third direction, and the height of the first bent portion 2 is greater than that of the second bent portion 2. The mating hole 21 of the first bent portion 2 is connected to the circuit board assembly by screws (please refer to...). Figure 5 The mating hole 21 on the second bent part 2 is connected to the cover 300 of the electrical control box by screws (please refer to...). Figure 1 ).

[0065] It should be noted that in the circuit board structure 200, the circuit board mounting plate and the terminal board structure 100 cooperate to form an assembly, and the flexible circuit board is mounted on the circuit board mounting plate.

[0066] Multiple holes can be provided on the mounting side for the circuit board structure 200 or the cover 300 to be locked or snapped together, thereby ensuring the stability of the two in conjunction with the terminal board structure 100.

[0067] Furthermore, multiple locking holes 3 are provided on the mounting side. The locking holes 3 are used to engage with the latches 322 of the cover 300 of the electrical control box assembly. It should be understood that the locking holes 3 and the through holes 1b should be staggered to ensure the connection of the cover 300 through multi-point engagement. The latches 322 and locking holes 3 are for disassembly engagement. When the latches 322 and locking holes 3 are engaged, the cover 300 covers the outside of the circuit board structure 200. When the latches 322 and locking holes 3 are separated, the cover 300 can be opened to expose at least a part of the circuit board structure 200, thereby facilitating maintenance.

[0068] Please refer to Figure 4The first mounting body 11 has a flange 1a extending in the direction away from the mounting side on its side edge, with the edge of the flange 1a folded inward. The flange 1a itself serves to guide and cooperate with related structures. Folding the flange 1a can prevent burrs and sharp edges from cutting lines. Correspondingly, the flange 1a of the circuit board mounting plate can also be folded to achieve the same effect.

[0069] It should be understood that the location of the flange 1a on the first seat 11 should be reasonably designed according to the actual fitting requirements. For example, in Figure 3 and Figure 4 In one embodiment, flanges 1a are provided on opposite sides of the first base 11 along the second direction.

[0070] This utility model does not limit the shape of the first base 11; it should be designed reasonably according to the assembly requirements. Please refer to [reference needed]. Figures 2 to 3 The terminal block structure 100 also includes a second base 12, a third base 13, and a connecting plate 14. The second base 12 is set at an angle to the first base 11. In this embodiment, the angle is an obtuse angle and is located on the side of the first base 11 facing away from the mounting side in the first direction. The third base 13 connects the first base 11 and the second base 12. The connecting plate 14 is located at the side end of the first base 11 and is integrated with the first base 11, the second base 12, and the third base 13. The first base 11, the second base 12, and the third base 13 can be connected as a whole by spot welding to ensure structural strength. The first base 11 serves as a supporting component, the second base 12 can be fixed to the main control part by screws and buckles, and the third base 13 serves as a connector. Compared with the existing structure, the newly added connecting plate 14 structure can also be connected to the three bases as a whole by spot welding, which can increase the overall strength of the terminal board structure 100. Compared with the structure of directly processing multiple parts into multiple segments in different directions by processing a single part, the processing difficulty is lower, the processing cycle is shorter, and it can also save materials, avoid waste, and reduce the overall cost.

[0071] Correspondingly, the first base 11, the second base 12 and the third base 13 are all provided with overlapping flanges 1a.

[0072] In addition, a cable clamp can be installed on the first base 11 to facilitate cable management.

[0073] This utility model also proposes an electrical control box assembly, which includes a terminal board structure 100. The specific structure of the terminal board structure 100 is as described in the above embodiments. Since this electrical control box assembly adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0074] For details, please refer to Figure 1 , Figure 6 and Figure 7 The electrical control box assembly also includes a circuit board structure 200 and a cover 300. The circuit board structure 200 is located on the mounting side of the terminal board structure 100. The cover 300 covers the outside of the circuit board structure 200. The cover 300 includes a fixing part 310 and a folding part 320 arranged sequentially along a second direction. The fixing part 310 is fixed to the terminal board. One end of the folding part 320 is connected to the fixing part 310 in the second direction, and the other end is rotatable relative to the fixing part 310. During rotation, the folding part 320 has a closed position that, together with the fixing part 310, covers the circuit board structure 200 (see reference). Figure 7 ), and the partial opening positions of the exposed circuit board structure 200 (please refer to Figure 9 ).

[0075] In this electrical control box assembly, both the cover 300 and the circuit board structure 200 are mounted on the terminal board structure 100. When the cover 300 is in the closed position, it completely covers the circuit board structure 200, thus protecting the components of the circuit board structure 200. When the cover 300 is in the open position, part of the circuit board structure 200 is exposed, facilitating maintenance and wiring. The operator actively drives the folding part 320 to change its position, thereby achieving position adjustment. This structural form makes operation more convenient.

[0076] Please refer to Figure 6 and Figure 10 The electrical control box assembly also includes a limiting structure, which includes a limiting protrusion 331 and a limiting hole 332. One of the limiting protrusion 331 and the limiting hole 332 is located in the fixing part 310, and the other is located in the folding part 320. The limiting protrusion 331 can be engaged and installed into the limiting hole 332 to fix the folding part 320 in the open position. In the closed position, the limiting protrusion 331 and the limiting hole 332 are not in contact. During the process of the folding part 320 changing from the closed position to the open position, the limiting protrusion 331 and the limiting hole 332 will gradually move closer. In the open position, the limiting protrusion 331 can be completely embedded in the limiting hole 332, thereby fixing the position of the folding part 320 and eliminating the need for the operator to hold the folding part 320.

[0077] It should be understood that the limiting protrusion 331 is an elastic structure that can be deformed by external force. The operator can generate driving force by applying external force or rotating the folding part 320 in the opposite direction to separate the limiting protrusion 331 and the limiting hole 332, so that the folding part 320 can be turned back to the closed position.

[0078] The limiting protrusion 331 and the limiting hole 332 should be staggered in the third direction. Two limiting structures can be provided, with the two limiting structures facing opposite directions, corresponding to the folding part 320 on opposite sides in the third direction, thereby providing a stable blocking force.

[0079] The limiting protrusion 331 can be set on the fixing part 310, and the limiting hole 332 is set on the folding part 320. The positions of the two can also be interchanged. When there are multiple limiting structures, the multiple limiting protrusions 331 in the multiple limiting structures can be on the same part or on different parts, as long as the limiting protrusion 331 and the limiting hole 332 in a single limiting structure are respectively set on two parts.

[0080] Please refer to Figures 7 to 8 The fixing part 310 has a support rib 340 on its side facing away from the circuit board structure 200. A limiting hole 332 extending in a third direction is provided in the middle of the support rib 340. A limiting protrusion 331 is provided on the folding part 320. The limiting protrusion 331 and the support rib 340 are staggered in a third direction. Both the limiting protrusion 331 and the support rib 340 have a first guide slope 350 on their respective end faces. It should be understood that the two first guide slopes 350 are arranged in parallel. During the process of the folding part 320 being driven to move the limiting protrusion 331, the first guide slope 350 on the limiting protrusion 331 can contact the first guide slope 350 on the support rib 340. This serves as a guide when the operator flips the folding part 320, facilitating the insertion of the locking part of the limiting protrusion 331 into the limiting hole 332 of the support rib 340.

[0081] Based on the above embodiments, the support rib 340 has a mating side end. When the folded portion 320 is in the open position, the mating side end is positioned towards the limiting protrusion 331. At least a portion of the mating side end away from the circuit board structure 200 is inclined outward along a first direction to form a second guide slope 341. In this embodiment, two adjacent sides of the support rib 340 respectively form a first guide slope 350 and a second guide slope 341. The second guide slope 341 can provide further guiding function, thereby improving the mating effect between the limiting protrusion 331 and the support rib 340 in conjunction with the first guide slope 350.

[0082] It should be noted that the second guide slope 341 can be formed by setting a chamfer on the edge of the side end, or it can be formed by tilting the entire end face of the side end.

[0083] Specifically, the inclination range of the first guide slope 350 and the second guide slope 341 can be the same or different. In this embodiment, the second guide slope 341 is a chamfer on the mating side end, and the slope of the second guide slope 341 is less than the slope of the first guide slope 350. This is because the first guide slope 350 is mainly for contact guidance, while the second guide slope 341 is mainly for avoidance and auxiliary guidance.

[0084] Furthermore, please refer to Figure 6 and Figure 8 The fixing part 310 has a first mating protrusion 311 on its side facing away from the circuit board structure, and the folding part 320 has a second mating protrusion 321 corresponding to the first mating protrusion 311. The second mating protrusion 321 and the first mating protrusion 311 are arranged close to each other, and the second mating protrusion 321 can abut against the first mating protrusion 311 during the rotation of the folding part 320. The first mating protrusion 311 and the second mating protrusion 321 can serve as a reinforcing structure to improve the structural strength of the fixing part 310 and the folding part 320. The abutment of the first mating protrusion 311 and the second mating protrusion 321 can also prevent the folding part 320 from directly contacting the fixing part 310 due to excessive driving force, which could cause local collapse of the fixing part 310 and result in irreversible deformation.

[0085] Specifically, the thickness and length of the first mating protrusion 311 and the second mating protrusion 321 can be the same or different. By reasonably setting their dimensions and positions, it is ensured that the first mating protrusion 311 and the second mating protrusion 321 contact each other before the limiting protrusion 331 engages with the limiting hole 332, thereby preventing collapse. Since the limiting protrusion 331 itself is an elastic arm structure, it can elastically deform under external force to engage with the limiting hole 332. That is, the first mating protrusion 311 and the second mating protrusion 321 will not interfere with the limiting structure.

[0086] Please refer to this again. Figure 8 In the technical solution of this embodiment, the first mating protrusion 311 and the second mating protrusion 321 are respectively formed by the fixing part 310 and the folding part 320 protruding towards the side opposite to the limiting structure. The first mating protrusion 311 can be directly connected to the support rib 340.

[0087] This invention does not limit the folding portion 320 to folding and rotating relative to the fixed portion 310; it can be achieved through a shaft-hole fit. In this embodiment, the cover 300 is made of a flexible material, specifically, a material with a certain degree of flexibility, such as plastic. A through-groove is formed on the inner surface of the cover 300, dividing it into the fixed portion 310 and the folding portion 320. The groove is formed by partially hollowing out the cover 300, with the wall thickness at the corresponding groove position being the thinnest, thus creating a folding position around which the folding portion 320 flips. This structural form ensures that the fixed portion 310 and the folding portion 320 always maintain an integral connection, eliminating the need for assembly.

[0088] Specifically, the cover 300 can be made of polypropylene, such as FR-PP(5VA)HI, which has high toughness and high impact resistance.

[0089] For further details, please refer to Figures 10 to 13 The groove includes a first groove segment 361 and a second groove segment 362 arranged adjacent to each other, with the depth of the first groove segment 361 being less than the depth of the second groove segment 362. Correspondingly, the distance between the bottom wall surface of the first groove segment 361 and the cover 300 is L1, and the distance between the bottom wall surface of the second groove segment 362 and the cover 300 is L2, where L1 > L2. The first groove segment 361 is designed to ensure the wall thickness at the folding position to prevent tearing, while the second groove segment 362 is designed to weaken the connection strength at the folding position, thereby reducing the resistance encountered by the folding part 320 when it is turned over.

[0090] It should be noted that, under conditions where there are no dustproof or waterproof requirements, the second groove section 362 can be directly set as a through hole, i.e., L2 = 0. Under conditions where the dustproof and waterproof requirements of the cover 300 need to be met, L2 > 0. By reasonably setting the corresponding wall thickness, the effects of waterproofing and reducing resistance can be balanced, thereby ensuring the requirements of dustproofing and insect prevention.

[0091] In some embodiments, the distance between the bottom wall of the first groove segment 361 and the cover 300 is L1, 0.5mm≤L1≤0.7mm; through reasonable size design, the local wall thickness at the fold position can be guaranteed, thereby ensuring strength and avoiding tearing. L1 can be set to 0.5mm, 0.7mm, or any value between 0.5mm and 0.7mm, such as 0.6mm. This size is finally determined through simulation analysis and physical testing.

[0092] In some embodiments, the distance between the bottom wall of the second groove segment 362 and the cover 300 is L2, where 0.18mm ≤ L2 ≤ 0.43mm; this reduces local strength while ensuring the thin-walled waterproof and dustproof properties, thereby improving the folding ease of the folding part 320. L2 can be set to 0.18mm, 0.43mm, or any value between 0.18mm and 0.43mm, such as 0.3mm. This dimension is ultimately determined through simulation analysis and physical testing.

[0093] It should be noted that the number of first groove segments 361 and second groove segments 362 can be the same or different. For example, one first groove segment 361 and one second groove segment 362 can be provided, or two first groove segments 361 can be provided with one second groove segment 362 sandwiched in between. In this embodiment, multiple first groove segments 361 and multiple second groove segments 362 are provided, and the multiple first groove segments 361 and multiple second groove segments 362 are alternately provided. This allows for alternation between reinforced and weak parts, which can improve the lifespan of the folding position and reduce the risk of tearing.

[0094] It should be noted that the lengths of the first groove segment 361 and the second groove segment 362 can be the same or different. The reasonable size settings of the first groove segment 361 and the second groove segment 362 are based on the dimensions of the cover 300 in a third direction. This utility model does not impose any restrictions on this.

[0095] In some embodiments, the length of each first groove segment 361 in a third direction is greater than that of each second groove segment 362. This enhances the tear resistance of the cover 300 at that location.

[0096] This utility model does not limit the outlines of the first and second grooves; please refer to... Figure 12 The second tank gradually widens towards the opening, and its cross-section is trapezoidal. Please refer to... Figure 13 The first groove also gradually widens towards the opening, but this widening occurs in two stages, with the widening amplitude increasing initially and then decreasing. This allows for greater wall thickness support at the location corresponding to the cover 300. Its cross-section is an irregular shape.

[0097] The existing openable cover 300 structure is generally pried open at the corresponding position of the cover 300 using tools. For easier opening and application of force by operators, please refer to... Figure 6 and Figure 9 The folding part 320 has a gripping part 370 protruding from its side opposite to the fixing part 310. The specific shape of the gripping part 370 is not limited, but it mainly functions as a handle. The gripping part 370 can be a sheet-like structure or a groove-like structure.

[0098] In this embodiment, the grip portion 370 is a sheet-like structure, and the end face that contacts the operator's hand is also provided with anti-slip ribs.

[0099] In addition, the terminal block structure 100 has multiple locking holes 3 on its mounting side; the folding part 320 has multiple latches 322 on the side away from the fixing part 310, which correspond to the multiple locking holes 3. When the folding part 320 is in the closed position, the multiple latches 322 are inserted into the multiple locking holes 3. This maintains the protective function of the cover 300.

[0100] It should be understood that the buckle 322 is a spring arm structure that can be deformed under force, thereby separating from the buckle hole 3 and allowing the folding part 320 to open.

[0101] Please refer to Figure 6 The folding part 320 has a protrusion at the position corresponding to the buckle 322. The operator can grasp the protrusion and apply force, thereby deforming the buckle 322 on the inner side and disengaging it from the locking hole 3, thus allowing the folding part 320 to be lifted. The protrusion serves two purposes: it functions as a grip and for applying force to unlock the device, and it also strengthens the local strength of the folding part 320.

[0102] This utility model also proposes a water heater 1000, please refer to... Figure 1 The water heater 1000 includes an electrical control box assembly. The specific structure of the electrical control box assembly is as described in the above embodiments. Since the water heater 1000 adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0103] Since heat pumps and water heaters operate on similar principles, this electrical control box assembly can also be used in heat pumps.

[0104] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the inventive concept of this utility model and the contents of this utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A terminal block structure for a water heater, characterized in that, The terminal block structure includes a first base for grounding, with one side of the first base in a first direction being a mounting side. The first base has a through hole, and the periphery of the through hole is folded towards the mounting side of the first base to form at least one bent portion. The height and slope of the bent portion are adapted to the connection part of the cover of the circuit board structure or the electrical control box assembly. The bent portion is provided with a mating hole for connection with the corresponding connection part.

2. The terminal block structure as described in claim 1, characterized in that, At least two bending portions are provided, the two bending portions are staggered and respectively connect to the two side edges of the through hole in the second direction, and the two bending portions are respectively used for connecting the cover of the circuit board structure and the electrical control box assembly.

3. The terminal block structure as described in claim 2, characterized in that, The two bent portions have a height difference in a first direction; and / or, At least one of the bent portions has an end face facing away from the mounting side that is inclined.

4. The terminal block structure as described in claim 1, characterized in that, The mounting side is also provided with multiple locking holes, which are used to engage with the snap-fit ​​mechanism of the cover of the electrical control box assembly; and / or, The side edge of the first base has a flange extending in a direction away from the mounting side, and the edge of the flange is folded inward.

5. The terminal block structure as described in claim 1, characterized in that, The terminal block structure also includes: The second seat is set at an angle to the first seat and is located on the side of the first seat that faces away from the mounting side in the first direction; A third seat, connecting the first seat and the second seat; and, The connecting plate is located at the side end of the first seat and is integrated with the first seat, the second seat and the third seat.

6. An electrical control box assembly, characterized in that, include: Terminal block structure, including the terminal block structure as described in any one of claims 1 to 5; A circuit board structure is located on the mounting side of the terminal board structure; A cover is provided on the outside of the circuit board structure. The cover includes a fixing part and a folding part arranged sequentially along a second direction. The fixing part is fixed to the terminal plate. One end of the folding part in the second direction is connected to the fixing part, and the other end is rotatable relative to the fixing part. During the rotation of the folding part, it has a closed position that together with the fixing part covers the circuit board structure, and an open position that exposes a part of the circuit board structure.

7. The electrical control box assembly as described in claim 6, characterized in that, The electrical control box assembly also includes a limiting structure, which includes a limiting protrusion and a limiting hole. One of the limiting protrusion and the limiting hole is located in the fixing part, and the other is located in the folding part. The limiting protrusion can be engaged and installed in the limiting hole to fix the folding part in the open position.

8. The electrical control box assembly as described in claim 7, characterized in that, The fixing part is provided with a support rib on the side facing away from the circuit board structure, and the middle of the support rib is provided with the limiting hole extending in a third direction. The folding part is provided with the limiting protrusion, the limiting protrusion and the supporting rib are staggered in the third direction, and the end faces of the limiting protrusion and the supporting rib facing each other are provided with a first guide slope.

9. The electrical control box assembly as described in claim 8, characterized in that, The support rib has a mating side end. When the folded portion is in the open position, the mating side end protrudes towards the limiting card. At least a portion of the mating side end away from the circuit board structure is inclined outward along a first direction to form a second guide slope.

10. The electrical control box assembly as claimed in claim 6, characterized in that, The fixing part has a first mating protrusion on the side facing away from the circuit board structure, and the folding part has a second mating protrusion corresponding to the first mating protrusion. The second mating protrusion and the first mating protrusion are arranged close to each other. During the rotation of the folding part, the second mating protrusion can abut against the first mating protrusion.

11. The electrical control box assembly as claimed in claim 6, characterized in that, The cover is made of a flexible material, and a groove is formed on the inner side of the cover in a third direction, which divides the cover into the fixing part and the folding part.

12. The electrical control box assembly as claimed in claim 11, characterized in that, The groove includes a first groove segment and a second groove segment arranged adjacent to each other, wherein the depth of the first groove segment is less than the depth of the second groove segment.

13. The electrical control box assembly as claimed in claim 12, characterized in that, The distance between the bottom wall of the first groove section and the cover is L1, 0.5mm≤L1≤0.7mm; and / or, The distance between the bottom wall of the second groove section and the cover is L2, 0.18mm≤L2≤0.43mm; and / or, Multiple first slots and multiple second slots are provided, and multiple first slots and multiple second slots are provided alternately.

14. The electrical control box assembly as claimed in claim 6, characterized in that, The folding part has a gripping part protruding from the side opposite to the fixing part.

15. The electrical control box assembly as claimed in claim 6, characterized in that, The terminal block structure also has multiple clip holes on its mounting side; The folding part is provided with a plurality of buckles on the side away from the fixing part, which are corresponding to the plurality of buckle holes. When the folding part is in the closed position, the plurality of buckles are inserted into the plurality of buckle holes.

16. A water heater, characterized in that, Includes the electrical control box assembly as described in any one of claims 6 to 15.

Images