electronic control box

Abstract

This utility model relates to the technical field of household appliances, and provides an electrical control box, including a box body, a box cover, and an elastic sealing element. The elastic sealing element is pressed between the box body and the box cover, and the elastic sealing element has a wire passage hole with a notch. The box body or the box cover has a wire through groove corresponding to the wire passage hole, and a protrusion corresponding to the notch is provided in the wire through groove, with the protrusion tightly inserted into the notch. In this utility model, the cable passes through the wire through groove and the wire passage hole. The shape of the wire through hole and the cable match and fits tightly. After the box body and the box cover are closed, there are no extra gaps, and moisture cannot enter the internal cavity of the box body, giving the electrical control box strong airtightness and waterproof performance. By providing a protrusion on the box body or the box cover to block the notch of the wire passage hole on the elastic sealing element, it is convenient for wire passage and also ensures the sealing effect of the elastic sealing element.

Description

Technical Field

[0001] This utility model relates to the technical field of household appliances, and in particular to an electrical control box. Background Technology

[0002] In some electrical appliances, such as humidifiers, the control circuit boards and other control components are typically housed within a control box. These internal electrical components require a certain level of waterproofing to prevent electrical leakage. To maintain this sealing and waterproofing, the edges of the control box are sealed with sealing rings, and wiring holes are sealed with sealing sleeves. To facilitate wire routing, slits are incorporated into the sealing sleeves, allowing the connecting wires to be inserted through these slits, thus achieving a waterproof seal at the wiring holes.

[0003] However, the slit disrupts the integrity of the sealing sleeve, allowing external moisture to enter the control box through the slit; and when one or more sensors are integrated into a bundle, the radius of the wire bundle increases, and the slit is just a narrow slit, making it inconvenient to insert the wire bundle into the sealing sleeve during assembly. Utility Model Content

[0004] This utility model provides an electrical control box to solve the technical problem that the waterproof structure of existing electrical control boxes has defects, which leads to a decrease in waterproof performance when the electrical control box needs to pass through wires.

[0005] This utility model provides an electrical control box, including a box body, a box cover, and an elastic sealing element, wherein the elastic sealing element is pressed between the box body and the box cover. The elastic seal has a wire-passing hole with a notch; the box body or the box cover has a wire-passing groove corresponding to the wire-passing hole, and a protrusion corresponding to the notch is provided in the wire-passing groove, with the protrusion tightly inserted into the notch.

[0006] According to the present invention, an electrical control box is provided in which a groove is provided on the end face where the box body and the box cover are pressed together, and the elastic sealing element is at least partially disposed in the groove and pressed by the box cover.

[0007] According to the present invention, the groove in the electrical control box is a U-shaped groove.

[0008] According to the present invention, an electrical control box is provided on the box cover, wherein a first protrusion is provided on the box cover, which corresponds to the groove, and the first protrusion engages in the groove and presses the elastic sealing member into the groove.

[0009] According to the present invention, an electrical control box is provided with a second protrusion on the end face of the first protrusion facing the groove, and the width of the second protrusion gradually decreases along the engaging direction of the box cover.

[0010] According to the present invention, the corners of the groove are chamfered.

[0011] According to the present invention, an electrical control box is provided with an external protrusion on the outer peripheral edge of the box cover, and the external protrusion is pressed against the end face of the outer periphery of the groove.

[0012] According to the present invention, the number of the wire holes is at least one.

[0013] According to the present invention, an electrical control box is provided in which the outer wall of the box body and the outer wall of the box cover are provided with a snap-fit ​​structure that engages with each other.

[0014] According to the present invention, an electrical control box is provided with mutually aligned hole structures between the outer wall of the box body and the outer wall of the box cover.

[0015] The above-mentioned one or more technical solutions provided by this utility model have at least the following technical effects: the cable passes through the cable groove and the cable hole, the shape of the cable hole and the cable match and fit tightly, there are no extra gaps after the box body and the box cover are closed, and water vapor cannot enter the internal cavity of the box body, so that the electrical control box has strong airtightness and waterproof performance; by setting a protrusion on the box body or the box cover to block the gap of the cable hole on the elastic seal, it is convenient to pass the cable and also ensures the sealing effect of the elastic seal. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is one of the structural schematic diagrams of the electrical control box provided in this embodiment of the utility model; Figure 2 This is the second structural schematic diagram of the electrical control box provided in this embodiment of the utility model; Figure 3 This is a partial enlarged view of the first notch provided in an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of the box lid provided in an embodiment of this utility model.

[0018] Figure label: 1. Box body; 11. Wire channel; 111. Protrusion; 12. Groove; 2. Box lid; 21. First protrusion; 22. Second protrusion; 23. Outer lug; 3. Elastic seal; 31. Wire hole; 311. Notch; 4. Snap-fit ​​structure. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0020] The following is combined Figures 1-4 The electrical control box of this utility model is described.

[0021] like Figure 1-2 As shown, this utility model embodiment provides an electrical control box, including a box body 1, a box cover 2, and an elastic sealing member 3. The elastic sealing member 3 is pressed between the box body 1 and the box cover 2. The elastic sealing member 3 has a wire through hole 31, and the wire through hole 31 has a notch 311. The box body 1 or the box cover 2 has a wire through groove 11 corresponding to the wire through hole 31. The wire through groove 11 has a protrusion 111 corresponding to the notch 311, and the protrusion 111 is tightly inserted into the notch 311.

[0022] Specifically, the cable passes through the cable groove 11 and the cable hole 31. The shape of the cable hole 31 matches the shape of the cable and fits tightly. After the box body 1 and the box cover 2 are closed, there are no extra gaps, and moisture cannot enter the internal cavity of the box body 1, giving the electrical control box strong airtightness and waterproof performance. By setting a protrusion on the box body 1 or the box cover 2 to block the notch 311 of the cable hole 31 on the elastic seal 3, it is convenient to pass the cable and also ensures the sealing effect of the elastic seal 3.

[0023] In some possible implementations, both the box body 1 and the box lid 2 are made of plastic, and the elastic seal 3 is made of rubber.

[0024] like Figure 2 As shown, according to an embodiment of the present invention, an electrical control box is provided, wherein a groove 12 is provided on the end face where the box body 1 and the box cover 2 are pressed together, and an elastic sealing member 3 is at least partially disposed in the groove 12 and pressed by the box cover 2. The installation of the elastic sealing member 3 is achieved by the engagement of the groove 12 and the elastic sealing member 3.

[0025] In some possible implementations, the groove 12 is an annular groove, and the elastic seal 3 is also annular so that it can be embedded in the groove 12; the wire groove 11 opens upward, and the notch 311 of the wire hole 31 opens downward.

[0026] like Figure 3As shown, in an embodiment of the present invention, the groove 12 of the electrical control box is a U-shaped groove.

[0027] It should be understood that by using a U-shaped groove to install the elastic seal 3, when the elastic seal 3 is squeezed and deformed, the elastic seal 3 forms a tight fit with the three surfaces of the groove 12 on both sides and the bottom surface of the groove to ensure the sealing effect.

[0028] like Figure 4 As shown, according to an embodiment of the present utility model, an electrical control box is provided with a first protrusion 21 on the box cover 2 corresponding to the groove 12. The first protrusion 21 is engaged in the groove 12 and presses the elastic sealing member 3 into the groove 12.

[0029] In some possible implementations, the first protrusion 21 is annular, surrounding the edge of the lid 2 near the box body 1, and protrudes toward the box body 1; the shape of the first protrusion 21 is complementary to the shape of the groove 12, and can be inserted into the groove 12 and press against the elastic seal 3, providing a pressing force to the elastic seal 3, improving the tightness and airtightness of the connection between the box body 1 and the lid 2, thereby enhancing the sealing effect.

[0030] It should be understood that by pressing the elastic seal 3 with the first protrusion 21 on the lid 2, the elastic seal 3 is fully embedded in the groove 12 to form a better seal; at the same time, the first protrusion 21 is engaged in the groove 12, which restricts the movement of the lid 2 and the box body 1 in the radial plane and ensures the connection effect between the two.

[0031] like Figure 4 As shown, according to an embodiment of the present invention, an electrical control box is provided with a second protrusion 22 on the end face of the first protrusion 21 facing the groove 12, and the width of the second protrusion 22 gradually decreases along the engaging direction of the box cover 2.

[0032] In some possible implementations, the second protrusion 22 is annular, protruding from the surface of the first protrusion 21 and extending toward one side of the housing 1. When the first protrusion 21 is inserted into the groove 12, the first protrusion 21 can press against the elastic seal 3 and provide clamping force, increasing the deformation of the elastic seal 3, so that the elastic seal 3 can better fill the groove 12 and further increase the sealing performance.

[0033] like Figure 3 As shown, in an embodiment of the present invention, the corners of the groove 12 of the electrical control box are chamfered.

[0034] It should be understood that the corners of the groove 12 are chamfered to facilitate the smooth engagement of the first protrusion 21 with the groove 12, making the fit of each component smooth and reducing the difficulty of assembly.

[0035] like Figure 4As shown, according to an embodiment of the present invention, an electrical control box is provided with an external lug 23 on the outer peripheral edge of the box cover 2, and the external lug 23 is pressed against the end face of the outer periphery of the groove wall of the groove 12.

[0036] It should be understood that by providing an external lug 23 on the outer peripheral edge of the lid 2, the external lug 23 forms a surface contact with the outer groove wall end face of the groove 12, ensuring that the pressure of the lid 2 on the elastic seal 3 in the groove 12 is uniform, thereby ensuring that all parts of the elastic seal 3 can fit tightly with the groove 12 and ensure the sealing effect.

[0037] According to an embodiment of the present invention, an electrical control box has at least one wire hole 31.

[0038] It should be understood that each cable pass-through hole 31 can allow at least one cable to pass through. The number of interfaces on the circuit board can be adjusted accordingly. That is, when there are a large number of cables that need to pass through, the number of cable pass-through holes 31 and cable slots 11 can be increased to meet the actual usage requirements.

[0039] like Figure 1-2 As shown, according to an embodiment of the present invention, an electrical control box is provided with a snap-fit ​​structure 4 between the outer wall of the box body 1 and the outer wall of the box cover 2.

[0040] In some possible implementations, the snap-fit ​​structure 4 includes a first snap-fit ​​part and a second snap-fit ​​part. The first snap-fit ​​part is a buckle ring, which is disposed on both sides of the box body 1. The second snap-fit ​​part is a protrusion, which is disposed on both sides of the box cover 2 and is disposed in accordance with the position of the buckle ring. When the box cover 2 is closed on the box body 1, the protrusion and the buckle ring can cooperate with each other and snap-fit ​​to fix the box cover 2 and the box body 1.

[0041] It should be understood that the connection form and setting position of the snap-fit ​​structure 4 are not specifically limited. The first snap-fit ​​part can be set as a protrusion and the second snap-fit ​​part can be set as a buckle. Multiple first snap-fit ​​parts can also be set along the circumference of the box body 1. Similarly, multiple second snap-fit ​​parts can also be set along the circumference of the box cover 2. The number of snap-fit ​​parts is proportional to the tightness of the box body 1 and the box cover 2. The shape, number and setting position of the first snap-fit ​​part and the second snap-fit ​​part are not limited here. As long as the box body 1 and the box cover 2 can be locked together by the cooperation of the first snap-fit ​​part and the second snap-fit ​​part, it is acceptable.

[0042] According to an embodiment of the present invention, an electrical control box is provided with mutually aligned hole structures between the outer wall of the box body 1 and the outer wall of the box cover 2.

[0043] It should be understood that by setting aligned hole structures on the box body 1 and the box cover 2, when the electrical control box is locked with screws, the screws can further press the box body 1 and the box cover 2 together, thereby further improving the airtightness.

[0044] It is understandable that the snap-fit ​​fixing method and the screw connection method of the first snap-fit ​​part and the second snap-fit ​​part can be used, or they can coexist on the box body 1 and the box cover 2, depending on the airtightness requirements in actual use; it is understandable that snap-fit ​​fixing is more convenient, and screw connection is more stable. Both have advantages and disadvantages, and the connection method can be reasonably arranged according to the needs.

[0045] In some other embodiments of this utility model, the control box can be set inside the humidifier, and the control box can be used to install electrical control components. The control box can be fixed to the internal structural components of the humidifier using screws.

[0046] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An electrical control box, comprising a box body (1), a box cover (2), and an elastic sealing element (3), wherein the elastic sealing element (3) is pressed between the box body (1) and the box cover (2), characterized in that, The elastic seal (3) has a wire hole (31) and a notch (311) is provided in the wire hole (31); the box body (1) or the box cover (2) has a wire groove (11) corresponding to the wire hole (31) and a protrusion (111) corresponding to the notch (311) is provided in the wire groove (11) and the protrusion (111) is tightly inserted into the notch (311).

2. The electric control box according to claim 1, wherein The end face where the box body (1) and the box cover (2) are pressed together is provided with a groove (12), and the elastic sealing element (3) is at least partially disposed in the groove (12) and pressed by the box cover (2).

3. The electric control box according to claim 2, wherein The groove (12) is a U-shaped groove.

4. The electric control box according to claim 3, wherein The lid (2) is provided with a first protrusion (21) corresponding to the groove (12). The first protrusion (21) engages in the groove (12) and presses the elastic seal (3) into the groove (12).

5. The electric control box according to claim 4, wherein The first protrusion (21) has a second protrusion (22) on its end face facing the groove (12), and the width of the second protrusion (22) gradually decreases along the engaging direction of the cover (2).

6. The electric control box according to claim 4, wherein The corners of the groove (12) are chamfered.

7. The electrically controlled box according to claim 2, wherein The outer periphery edge of the lid (2) is provided with an external lug (23), which is pressed against the end face of the outer groove wall of the groove (12).

8. The electrically controlled box according to claim 1, wherein, The number of the wire holes (31) is at least one.

9. The electrical control box according to claim 1, characterized in that, A snap-fit ​​structure (4) is provided between the outer wall of the box body (1) and the outer wall of the box cover (2).

10. The electrical control box according to any one of claims 1-9, characterized in that, The outer wall of the box body (1) and the outer wall of the box cover (2) are provided with mutually aligned hole structures.

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