Electric control box and air conditioner indoor unit

Abstract

The utility model provides an electric control box and an air conditioner indoor unit, and relates to the technical field of air conditioner indoor units. An installation position is arranged in the electric control box and used for installing a PCB, a water retaining rib is arranged between the inner wall, close to an evaporator of the indoor unit of the air conditioner, of the electric control box and the installation position of the PCB, and the water retaining rib is used for preventing condensed water formed on the inner wall from flowing to the PCB. According to the electric control box, the water retaining rib is arranged between the inner wall close to the evaporator and the mounting position where the PCB is mounted, and condensed water formed by the electric control box close to the inner wall of the evaporator can be prevented from flowing to the mounting position of the PCB after being collected, so that the problem of short circuit of a circuit of the PCB due to the condensed water can be effectively avoided, the failure rate of a main controller is reduced, and the service life of the main controller is prolonged. The reliability of the air conditioner is improved. In addition, the water retaining ribs separate the condensed water from the mounting position of the PCB, the cold energy of the condensed water transmitted to the PCB can be effectively reduced, and therefore sponge and the like do not need to be additionally arranged for heat preservation.

Description

Technical Field

[0001] The utility model relates to the technical field of indoor units of air conditioners, and particularly to an electric control box and an indoor unit of an air conditioner. Background Art

[0002] In the prior art, the main controller of an indoor unit of an air conditioner includes an electric control box and a PCB board arranged therein. Among them, one side of the electric control box is arranged close to the evaporator. Because, during the refrigeration operation of the air conditioner, the wall of the electric control box close to the evaporator is a cold wall, and the electronic components in the electric control box generate heat during operation, making the cavity in the electric control box a hot cavity. Therefore, condensed water is very likely to be generated on the inner wall of the electric control box close to the evaporator, and the condensed water will flow along the inner wall of the electric control box and gather in the assembly groove of the PCB board, resulting in a short circuit of the circuit and affecting the operation of the air conditioner. Summary of the Utility Model

[0003] The first object of the utility model is to provide an electric control box to solve the technical problem that the condensed water in the electric control box of the indoor unit of the air conditioner in the prior art causes a short circuit of the PCB board circuit and affects the operation of the air conditioner.

[0004] The electric control box provided by the utility model is applied to an indoor unit of an air conditioner. An installation position is arranged in the electric control box for installing the PCB board. A water blocking rib is arranged between the inner wall of the electric control box close to the evaporator of the indoor unit of the air conditioner and the installation position, and the water blocking rib is used to block the condensed water formed on the inner wall from flowing towards the PCB board.

[0005] The electric control box provided by the utility model can produce the following beneficial effects:

[0006] The electric control box provided by the utility model is provided with a water blocking rib between the inner wall of the electric control box close to the evaporator and the installation position for installing the PCB board, which can block the condensed water formed on the inner wall of the electric control box close to the evaporator from flowing towards the installation position of the PCB board after gathering. Thus, the problem that the condensed water causes a short circuit of the PCB board circuit can be effectively avoided, the failure rate of the main controller can be reduced, and the reliability of the air conditioner can be improved.

[0007] In addition, the water blocking rib separates the condensed water from the installation position of the PCB board, and can also effectively reduce the transfer of the cold quantity of the condensed water to the PCB board. Therefore, there is no need to additionally increase sponges or the like for heat preservation.

[0008] Furthermore, the inner wall of the electric control box includes a bottom wall, and the water blocking rib includes a first water blocking rib, and the first water blocking rib is arranged on the bottom wall.

[0009] Under this technical solution, since the condensed water will flow downward along the left or right side wall of the electronic control box under the action of gravity and finally gather on the bottom wall, the present application provides a first water blocking rib on the bottom wall, which can effectively block the condensed water flowing toward the PCB board after gathering.

[0010] Further, the inner wall of the electronic control box further includes a rear side wall connected to the bottom wall, and the water blocking rib further includes a second water blocking rib, which is disposed on the rear side wall and connected to the first water blocking rib.

[0011] Under this technical solution, the second water blocking rib can effectively block the condensed water from flowing toward the PCB board through the rear side wall, thereby further preventing the occurrence of short circuits in the PCB board circuit.

[0012] Further, the first water blocking rib and / or the second water blocking rib are in a straight line, a broken line or an arc shape.

[0013] Further, the second water blocking rib is in a broken line shape, including a first water blocking section, a second water blocking section and a third water blocking section connected in sequence from top to bottom, and the included angles between the second water blocking section and the first water blocking section and the third water blocking section are both greater than or equal to 90°; the lower end of the third water blocking section is connected to the first water blocking rib.

[0014] Under this technical solution, by bending to change the direction of the second water blocking rib, it can be ensured that each water blocking section has a safe distance from the electronic components of the PCB board, effectively avoiding the electronic components on the PCB board 200. And the included angles between the second water blocking section and the first water blocking section and the third water blocking section are both greater than or equal to 90°, which can effectively prevent the condensed water from accumulating at the connection of adjacent two water blocking sections and ensure that the condensed water can flow smoothly in the downward direction.

[0015] Further, a wire outlet is provided at the bottom of the electronic control box, and the first water blocking rib extends to the wire outlet.

[0016] Under this technical solution, the condensed water is discharged through the wire outlet after gathering.

[0017] Further, the height range of the water blocking rib is 1 mm to 5 mm.

[0018] Under this technical solution, the height range of 1 mm to 5 mm is more appropriate, because if the height of the water blocking rib is too low, the water blocking effect is insufficient; if it is too high, it is easy to affect the assembly of the PCB board and is likely to interfere with the board body of the PCB board and the components thereon. For example, the height of the water blocking rib can be 2 mm or 3 mm. Of course, the heights of different parts of the water blocking rib can be different. For example, the first water blocking rib 130 is 3 mm, and the second water blocking rib 140 is 2 mm. In addition, the height of the water blocking rib can be gradually changed.

[0019] Further, the electric control box includes a box body and a box cover. The box body has an opening facing forward, and the box cover covers the opening.

[0020] The inner wall of the box body includes a bottom wall and a top wall. The installation position is provided with a first slot and a second slot which are opposite to each other up and down. The two slots are respectively arranged on the bottom wall and the top wall and both extend to the opening.

[0021] Under this technical solution, when installing the PCB board into the electric control box, the bottom end and the top end of its inner side can be inserted into the first slot and the second slot respectively at the opening first, and then the PCB board can be pushed inward along the first slot and the second slot to its target position.

[0022] Further, the bottom wall bulges outward to form the first slot, and / or the top wall bulges outward to form the second slot. Preferably, the bottom wall bulges outward to form the first slot, and the top wall bulges outward to form the second slot.

[0023] Under this technical solution, except that the distance between the outward bulging parts of the bottom wall and the top wall of the electric control box is relatively large, the distances of other parts are relatively small, so the occupied space of the electric control box is relatively small.

[0024] Optionally, the bottom wall bulges inward to form two adjacent first protrusions, and the first slot is formed between the two first protrusions, and / or the top wall bulges inward to form two adjacent second protrusions, and the second slot is formed between the two second protrusions.

[0025] Under this technical solution, the first protrusions and the second protrusions themselves can also play a role in blocking water.

[0026] The second object of the present invention is to provide an indoor unit of an air conditioner to solve the technical problem in the prior art that the condensed water in the electric control box of the indoor unit of the air conditioner causes the short circuit of the PCB board circuit and affects the operation of the air conditioner.

[0027] The indoor unit of the air conditioner provided by the present invention is a wall-mounted indoor unit, including the above-mentioned electric control box. The PCB board is installed at the installation position. Along the transverse direction of the indoor unit of the air conditioner, the electric control box is located on the right side or the left side of the evaporator of the indoor unit of the air conditioner.

[0028] This indoor unit of the air conditioner has all the advantages of the above-mentioned electric control box, so it will not be described in detail here. Description of the Drawings

[0029] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the provided drawings.

[0030] Figure 1 One of the partial structural schematic diagrams of the indoor unit of the air conditioner provided by the embodiment of the present invention;

[0031] Figure 2 Another partial structural schematic diagram of the indoor unit of the air conditioner provided by the embodiment of the present invention;

[0032] Figure 3 One of the partial sectional schematic diagrams of the indoor unit of the air conditioner provided by the embodiment of the present invention;

[0033] Figure 4 For Figure 3 Partial enlarged view;

[0034] Figure 5 Another partial sectional schematic diagram of the indoor unit of the air conditioner provided by the embodiment of the present invention;

[0035] Figure 6 For Figure 5 Partial enlarged view;

[0036] Figure 7 One of the partial structural schematic diagrams of the indoor unit of the air conditioner provided by the embodiment of the present invention;

[0037] Figure 8 Another partial structural schematic diagram of the indoor unit of the air conditioner provided by the embodiment of the present invention;

[0038] Figure 9 Longitudinal sectional structural schematic diagram when the electric control box of the embodiment of the present invention is installed with a PCB board;

[0039] Figure 10 Partial structural schematic diagram when the electric control box of the embodiment of the present invention is installed with a PCB board;

[0040] Figure 11 Transverse sectional structural schematic diagram when the electric control box of the embodiment of the present invention is installed with a PCB board;

[0041] Figure 12 Side view structural schematic diagram when the electric control box of the embodiment of the present invention is installed with a PCB board;

[0042] Figure 13One of the schematic structural diagrams of the box body of the electric control box provided by the embodiment of the present invention;

[0043] Figure 14 Another schematic structural diagram of the box body of the electric control box provided by the embodiment of the present invention.

[0044] Explanation of reference numerals:

[0045] 100 - Electric control box; 101 - Outlet; 110 - Box body; 111 - Left side wall; 112 - Rear side wall; 113 - Right side wall; 114 - Bottom wall; 115 - Top wall; 116 - First slot; 117 - Second slot; 120 - Box cover; 130 - First water baffle; 140 - Second water baffle; 141 - First water baffle section; 142 - Second water baffle section; 143 - Third water baffle section;

[0046] 200 - PCB board; 210 - Electronic components;

[0047] 300 - Evaporator. Detailed implementation manners

[0048] To make the above objects, features, and advantages of the present invention more obvious and understandable, the following describes the specific embodiments of the present invention in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0049] This embodiment provides an electric control box 100, which is applied to the indoor unit of an air conditioner. As Figures 1 to 8 shown, an installation position is provided inside the electric control box 100 for installing the PCB board 200. A water baffle is provided between the inner wall of the electric control box 100 close to the evaporator 300 of the indoor unit of the air conditioner and the installation position of the PCB board 200. The water baffle is used to block the condensed water formed on the inner wall from flowing towards the PCB board 200.

[0050] For the electric control box 100 provided in this embodiment, a water baffle is provided between the inner wall of the electric control box 100 close to the evaporator 300 and the installation position for installing the PCB board 200, which can block the condensed water formed on the inner wall of the electric control box 100 close to the evaporator 300 from flowing towards the installation position of the PCB board 200 after collection. Thus, it can effectively avoid the problem of short - circuit of the PCB board 200 caused by condensed water, reduce the failure rate of the main controller, and improve the reliability of the air conditioner.

[0051] In addition, the water baffle separates the condensed water from the installation position of the PCB board 200, and can also effectively reduce the transfer of the cold quantity of the condensed water to the PCB board 200. Therefore, there is no need to additionally increase sponges or the like for heat preservation.

[0052] Specifically, in this embodiment, as Figure 10 and Figure 11As shown, the inner wall of the electronic control box 100 includes an opposite bottom wall 114 and top wall 115, as well as a left side wall 111 and a right side wall 113 both connected to the two. Condensed water is mainly formed on the left side wall 111 or the right side wall 113 close to the evaporator 300; the water retaining rib includes a first water retaining rib 130, and the first water retaining rib 130 is arranged on the bottom wall 114. Under the action of gravity, the condensed water flows downward along the left side wall 111 or the right side wall 113 of the electronic control box 100 and will finally gather on the bottom wall 114. Therefore, in this embodiment, the first water retaining rib 130 is arranged on the bottom wall 114, which can effectively block the condensed water flowing towards the PCB board 200 after gathering.

[0053] Specifically, in this embodiment, as Figure 7 , Figure 9 and Figure 12 shown, the inner wall of the electronic control box 100 further includes a rear side wall 112 connected to the bottom wall 114, and the rear side wall 112 is also connected to the top wall 115, the left side wall 111 and the right side wall 113; the water retaining rib further includes a second water retaining rib 140, and the second water retaining rib 140 is arranged on the rear side wall 112 and is connected to the first water retaining rib 130. In this setting form, the second water retaining rib 140 can effectively block the condensed water from flowing towards the PCB board 200 through the rear side wall 112, thereby further preventing the occurrence of short circuits in the lines of the PCB board 200.

[0054] Specifically, in this embodiment, as Figure 9 shown, the second water retaining rib 140 is in a zigzag shape and includes a first water retaining section 141, a second water retaining section 142 and a third water retaining section 143 connected in sequence from top to bottom, and the included angles between the second water retaining section 142 and the first water retaining section 141 and the third water retaining section 143 are both greater than or equal to 90°; the lower end of the third water retaining section 143 is connected to the first water retaining rib 130. By bending to change the direction of the second water retaining rib 140, it can ensure that each water retaining section has a safe distance from the electronic components 210 of the PCB board 200 and effectively avoids the electronic components 210 on the PCB board 200. The included angles between the second water retaining section 142 and the first water retaining section 141 and the third water retaining section 143 are both greater than or equal to 90°, which can effectively prevent condensed water from accumulating at the connection of adjacent two water retaining sections and ensure that the condensed water can flow smoothly in the downward direction.

[0055] Of course, although the first water retaining rib 130 is linear and the second water retaining rib 140 is zigzag in this embodiment, in other embodiments of the present application, both the first water retaining rib 130 and the second water retaining rib 140 can be linear, zigzag or arc-shaped, as long as it is beneficial for water retaining and water diversion and does not prevent the installation of the PCB board 200, the specific shapes of the first water retaining rib 130 and the second water retaining rib 140 can be not limited in the present application.

[0056] Specifically, in this embodiment, asFigure 10 , Figure 11 and Figure 13 and Figure 14 As shown in Figure 14 , a wire outlet 101 is provided at the bottom of the electronic control box 100, and the first water retaining rib 130 extends to the wire outlet 101. In this setting, the condensed water is collected and discharged through the wire outlet 101. Of course, in other embodiments of the present application, a drainage port may also be separately opened to discharge the condensed water.

[0057] Specifically, in this embodiment, the height range of the water retaining rib is 1 mm to 5 mm. If the height of the water retaining rib is too low, the water retaining effect is insufficient; if it is too high, it is likely to affect the assembly of the PCB board 200 and is likely to interfere with the board body of the PCB board 200 and the components thereon. The height range of 1 mm to 5 mm is more appropriate. For example, the height of the water retaining rib can be 2 mm or 3 mm. Of course, the heights of different parts of the water retaining rib can be different. For example, the height of the first water retaining rib 130 is 3 mm, while the height of the second water retaining rib 140 is 2 mm. In addition, the height of the water retaining rib can be gradually changed as long as it can effectively block and guide the condensed water to flow towards the wire outlet 101 and does not interfere with the assembly of the PCB board 200.

[0058] Specifically, in this embodiment, as Figure 1 and Figure 2 , Figure 9 and Figure 10 and Figure 13 and Figure 14 As shown in Figure 14 , the electronic control box 100 includes a box body 110 and a box cover 120. The box body 110 has an opening facing forward, and the box cover 120 is covered on the opening; the inner wall of the box body 110 includes a bottom wall 114 and a top wall 115; the installation position is provided with upper and lower opposite first slots 116 and second slots 117, which are respectively arranged on the bottom wall 114 and the top wall 115 and both extend to the opening. In this setting, when the PCB board 200 is installed in the electronic control box 100, the bottom end and the top end of its inner side can be inserted into the first slot 116 and the second slot 117 respectively at the opening, and then the PCB board 200 can be pushed inward along the first slot 116 and the second slot 117 to its target position.

[0059] More specifically, in this embodiment, as Figure 9 and Figure 10 and Figure 13 and Figure 14 As shown in Figure 14 , the bottom wall 114 bulges outward to form the first slot 116, and the top wall 115 bulges outward to form the second slot 117. With such a setting, except for the relatively large distance between the outwardly protruding parts of the bottom wall 114 and the top wall 115 of the electronic control box 100, the distances in other parts are relatively small, so the occupied space of the electronic control box 100 is relatively small.

[0060] In addition, it should be noted that in other embodiments of the present application, the first slot 116 and the second slot 117 can also be formed in the following manner: the bottom wall 114 protrudes inward to form two adjacent first protrusions, and the first slot 116 is formed between the two first protrusions; the top wall 115 protrudes inward to form two adjacent second protrusions, and the second slot 117 is formed between the two second protrusions. In this setting form, the first protrusions and the second protrusions themselves can also play a role in blocking water.

[0061] This embodiment also provides an indoor unit of an air conditioner. As Figures 1 to 6 shown, the indoor unit of the air conditioner is a wall-mounted indoor unit, which includes the above-mentioned electric control box 100. A PCB board 200 is installed at the installation position. Along the transverse direction of the indoor unit of the air conditioner, the electric control box 100 is located on the right side of the evaporator 300 of the indoor unit of the air conditioner. Thus, condensed water is likely to be generated on the left side wall 111 of the inner wall of the electric control box 100. Of course, in other embodiments of the present application, the electric control box 100 can also be located on the left side of the evaporator 300. In this case, it is the right side wall 113 of the inner wall of the electric control box 100 that is likely to generate condensed water. The indoor unit of the air conditioner has all the advantages of the above-mentioned electric control box 100, so it will not be elaborated here.

[0062] Finally, it should also be noted that in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variation thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0063] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to the embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An electric control box is applied to the indoor unit of an air conditioner, and is characterized in that, An installation position is provided inside the electronic control box (100) for installing a PCB board (200). A water-blocking rib is provided between the inner wall of the electronic control box (100) close to the evaporator (300) of the indoor unit of the air conditioner and the installation position. The water-blocking rib is used to block the condensed water formed on the inner wall from flowing towards the PCB board (200).

2. The electronic control box according to claim 1, characterized in that, The inner wall of the electronic control box (100) includes a bottom wall (114). The water-blocking rib includes a first water-blocking rib (130), and the first water-blocking rib (130) is provided on the bottom wall (114).

3. The electronic control box according to claim 2, wherein The inner wall of the electronic control box (100) further includes a rear side wall (112) connected to the bottom wall (114). The water-blocking rib further includes a second water-blocking rib (140), and the second water-blocking rib (140) is provided on the rear side wall (112) and connected to the first water-blocking rib (130).

4. The electronic control box according to claim 3, characterized in that, The first water-blocking rib (130) and / or the second water-blocking rib (140) is in a straight line shape, a broken line shape or an arc shape.

5. The electronic control box according to claim 4, characterized in that The second water-blocking rib (140) is in a broken line shape and includes a first water-blocking section (141), a second water-blocking section (142) and a third water-blocking section (143) connected in sequence from top to bottom. The included angles between the second water-blocking section (142) and the first water-blocking section (141) and the third water-blocking section (143) are both greater than or equal to 90°. The lower end of the third water-blocking section (143) is connected to the first water-blocking rib (130).

6. The electronic control box according to any one of claims 2-5, characterized in that An outlet (101) is provided at the bottom of the electronic control box (100), and the first water-blocking rib (130) extends to the outlet (101).

7. The electronic control box according to any one of claims 1-5, characterized in that The height range of the water-blocking rib is 1 mm to 5 mm.

8. The electronic control box according to any one of claims 1-5, characterized in that, The electronic control box (100) includes a box body (110) and a box cover (120). The box body (110) has an opening facing forward, and the box cover (120) covers the opening. The inner wall of the box body (110) includes a bottom wall (114) and a top wall (115). The installation position is provided with a first slot (116) and a second slot (117) that are opposite up and down. The two are respectively provided on the bottom wall (114) and the top wall (115) and both extend to the opening.

9. The electronic control box according to claim 8, characterized in that, The bottom wall (114) protrudes outward to form the first slot (116), and / or the top wall (115) protrudes outward to form the second slot (117). And / or, the bottom wall (114) protrudes inward to form two adjacent first protrusions, and the first slot (116) is formed between the two first protrusions. And / or, the top wall (115) protrudes inward to form two adjacent second protrusions, and the second slot (117) is formed between the two second protrusions.

10. An indoor unit of an air conditioner, characterized in that, The indoor unit of the air conditioner is a wall-mounted indoor unit, including the electronic control box (100) according to any one of claims 1-9. The PCB board (200) is installed at the installation position. Along the transverse direction of the indoor unit of the air conditioner, the electronic control box (100) is located on the right side or the left side of the evaporator (300) of the indoor unit of the air conditioner.

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