Electric appliance box and air conditioning equipment
By designing the thermal conduction cavity and drainage incline in the reactor box, the problem of the reactor box being prone to short-circuit in heavy rainy weather is solved, and the effective heat dissipation and waterproofing functions of the reactor box are realized.
Patent Information
- Application Number
- CN202420584839.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-25
- Publication Date
- 2025-04-29
- Estimated Expiration
- 2034-03-25
AI Technical Summary
In heavy rainy weather, existing reactor boxes are prone to throwing water droplets into the reactor boxes due to the rotation of the wind blades, resulting in unfavorable risks such as short circuits, making it difficult to take into account both heat dissipation and waterproofing functions.
An electrical box is designed with a heat conduction chamber and a drainage incline, which can lead to heat and water droplets through the ventilation holes to achieve both heat dissipation and waterproofing.
It effectively avoids water droplets entering the electrical box, protects the normal operation of the electrical equipment, and at the same time, the effective heat dissipation and waterproofing of the reactor box is achieved through the heat dissipation hole and the drainage slope.
Smart Images
Figure CN222811901U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electrical equipment, in particular to an electrical box and air-conditioning equipment. Background Art
[0002] Some air conditioner outdoor units need to be equipped with reactors. Due to the large size and heat generation of reactors, the reactors are currently wrapped in reactor boxes composed of sheet metal shells and placed above the fan cavity, and the airflow driven by the rotation of the fan is used to dissipate heat. Because the reactor box needs to have holes to provide the reactor with sufficient heat dissipation channels, and the holes in the reactor box will cause water droplets to be thrown into the reactor box due to the rotation of the fan blades in heavy rainy weather, causing adverse risks such as reactor short circuit, so the reactor box needs to be designed with a protective structure that takes into account both heat dissipation and waterproofing. Utility Model Content
[0003] In order to solve the problem of heat dissipation and waterproofing of electrical equipment, the electrical box proposed in the utility model utilizes a heat dissipation cavity with heat dissipation holes and drainage slopes arranged inside the shell to achieve ventilation and heat dissipation of the electrical box while having waterproof functions.
[0004] The technical solution adopted by the utility model is to design an electrical box, including a box body, a heat conduction cavity is arranged in the box body, a first vent hole connected with the outside of the box body is arranged at the end of the heat conduction cavity, a second vent hole connected with the inside of the box body is arranged on the cavity wall of the heat conduction cavity, and a drainage slope is provided in the heat conduction cavity from the second vent holes to the first vent hole.
[0005] In some embodiments, two first ventilation holes are disposed at opposite ends of the heat conduction cavity, and the second ventilation hole is located in the middle of the heat conduction cavity.
[0006] In some embodiments, the heat conduction cavity includes a groove body, and the groove body and the upper side wall of the box body enclose the heat conduction cavity, and notches at both ends of the groove body expose the box body to form the first vent hole.
[0007] In some embodiments, the drainage slope has an inclination angle of not less than 2°.
[0008] In some embodiments, the side wall of the box body includes an inner wall and an outer wall, a heat dissipation channel is arranged between the inner wall and the outer wall, the inner wall is provided with inner heat dissipation holes connected to the heat dissipation channel, the outer wall is provided with outer heat dissipation holes connected to the heat dissipation channel, and the inner heat dissipation holes and the outer heat dissipation holes are arranged alternately.
[0009] In some embodiments, the external heat dissipation holes are a plurality of parallel grid holes distributed on the outer side wall.
[0010] In some embodiments, a drainage hole is provided at the bottom of the heat dissipation hole.
[0011] In some embodiments, a window and a blocking body covering the window are provided on the side wall of the box body, a slot is provided on the side of the window, and the blocking body is inserted into and fixed on the slot.
[0012] In some embodiments, a lateral boss is disposed on the end side of the blocking body, a heat dissipation hole connected to the heat dissipation channel is disposed on the lateral boss, and a lateral socket corresponding to the lateral boss is disposed on the slot.
[0013] Air conditioning equipment, including the electrical box.
[0014] Compared with the prior art, the utility model has the following beneficial effects:
[0015] The utility model provides connecting vents in the heat-conducting cavity to facilitate the heat dissipation in the box body, and provides a drainage slope between the second vents and the first vent, so that water droplets splashed into the heat-conducting cavity flow to the first vent and then are discharged, thereby avoiding entering the box body through the two vents to affect the electrical equipment.
[0016] Since the electrical box is provided with structures such as heat dissipation holes through which air can pass, the pressure difference formed under different temperature environments is used to perform cold and hot strong and weak convection exchange. The cold high and high pressure air outside the reactor box pushes the airflow to enter through the heat dissipation grille and heat dissipation holes of the reactor box, squeezing the hot air inside the reactor box to flow out, forming cold and heat exchange, thereby achieving the purpose of reducing the temperature inside the reactor box. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The present invention is described in detail below in conjunction with specific embodiments and drawings. In order to show details and facilitate understanding of its principles, it is not necessarily drawn to scale, and similar reference numerals may describe similar components in different views. The drawings generally illustrate the embodiments discussed herein by way of example and not limitation. Among them:
[0018] Figure 1 It is an exploded schematic diagram of the electrical box of the embodiment.
[0019] Figure 2 It is a front view schematic diagram of the tank body.
[0020] Figure 3 yes Figure 2 Schematic top view of .
[0021] Figure 4 yes Figure 2 Schematic diagram of the left side.
[0022] Figure 5 is a front view schematic diagram of the frame.
[0023] Figure 6 yes Figure 5 Schematic top view of .
[0024] Figure 7 yes Figure 5 Schematic diagram of the left side.
[0025] Figure 8 It is a front view schematic diagram of the block body.
[0026] Fig. 9 yes Figure 8 Schematic top view of .
[0027] Fig.10 yes Figure 8 Schematic diagram of the left side.
[0028] In the figure, 1, box body; 11, bayonet; 2, reactor; 3, slot body; 31, first vent hole; 32, second vent hole; 4, bolt; 6, box cover; 7, frame; 71, window; 72, lower through hole; 73, slot; 74, lateral plug hole; 8, blocking body; 81, grid hole; 82, rectangular hole; 83, drainage hole; 84, lateral boss; 841, heat dissipation hole; 85, port; 86, clamp head; 87, extended part; 871, screw hole; 9, clamp strip; 91, clamp hole. DETAILED DESCRIPTION
[0029] The following are specific embodiments of the present invention, and the technical solution of the present invention is further described in conjunction with the accompanying drawings, but the present invention is not limited to these embodiments, and the following embodiments do not limit the utility model involved in the claims. In addition, all combinations of the features described in the embodiments are not necessarily required for the solution of the utility model.
[0030] The principle and structure of the present utility model are described in detail below with reference to the accompanying drawings and embodiments.
[0031] Example
[0032] like Figure 1 , 2 As shown in Figures 3 and 4, the electrical box includes a box body 1 for placing electrical equipment. The electrical equipment in this embodiment is a reactor 2 used on air-conditioning equipment. A heat conduction cavity is arranged in the box body 1. A first air vent 31 communicating with the outside of the box body 1 is arranged at the end of the heat conduction cavity. A second air vent 32 communicating with the inside of the box body 1 is arranged on the cavity wall of the heat conduction cavity. The hot air in the shell enters the heat conduction cavity through the second air vent 32 and is then discharged from the first air vent 31 to achieve cooling.
[0033] The heat transfer cavity has a drainage slope from the second vents to the first vent 31, so that water droplets splashed into the heat transfer cavity flow to the first vent 31 and then discharged, avoiding entering the box body 1 through the two vents to affect electrical equipment.
[0034] Two first vent holes 31 are disposed opposite to each other at two ends of the heat conduction cavity, and the second vent hole 32 is located in the middle of the heat conduction cavity, so that heat can be discharged from the first vent holes 31 at both ends.
[0035] The inclination angle a of the drainage slope is not less than 2° to facilitate rapid drainage of water.
[0036] The heat conduction cavity comprises a long strip-shaped groove body 3, the first vent hole 31 is provided on the groove wall of the groove body 3, the groove body 3 and the upper side wall of the box body 1 enclose the heat conduction cavity, the notches at both ends of the groove body 3 expose the box body 1 to form the first vent hole 31, and the upper side wall of the box body 1 is used as a part of the heat conduction cavity, which has a simple structure and is easy to install. In this embodiment, two parallel groove bodies 3 are provided, that is, two parallel heat conduction cavities are provided on the top of the inner side of the box body 1, the upper side wall of the box body 1 is a box cover 6, and the two ends of the box cover 6 are connected to the two opposite side walls of the box body 1 by bolts 4, so that the groove body 3 is clamped and fixed between the box cover 6 and the side wall, and the side wall is provided with a bayonet 11 for clamping and fixing the groove body 3.
[0037] like Figure 8 , 9 As shown in Figure 10, the other two opposite side walls of the box body 1 include an inner wall and an outer wall, a heat dissipation channel is arranged between the inner wall and the outer wall, the inner wall is provided with inner heat dissipation holes 841 connected with the heat dissipation channel, the outer wall is provided with outer heat dissipation holes 841 connected with the heat dissipation channel, the inner heat dissipation holes 841 and the outer heat dissipation holes 841 are arranged alternately, that is, the inner heat dissipation holes 841 and the outer heat dissipation holes 841 are not arranged correspondingly, so that the heat dissipation channel forms a circuitous channel, the circuitous channel is conducive to heat dissipation and can prevent water droplets from splashing in.
[0038] The outer heat dissipation holes 841 are multiple parallel grid holes 81 distributed on the outer side wall. The grid holes 81 are small, but the number is large, so that it is beneficial to prevent water droplets from splashing in while facilitating heat dissipation. The inner heat dissipation holes 841. The bottom of the heat dissipation holes 841 is provided with drainage holes 83 to drain water entering the heat dissipation channel, and the outer heat dissipation holes 841 are larger rectangular holes 82, which is beneficial for heat to quickly enter the heat dissipation channel for heat dissipation.
[0039] like Figure 5 , 6As shown in Figures 7 and 8, the side wall of the box body 1 is provided with a window 71 and a blocking body 8 for blocking the window 71. The window 71 is provided on a frame 7 connected to the side of the box body 1. The frame 7 is provided with a lower through hole 72 corresponding to the drain hole 83. A slot 73 is provided on the side of the window 71. The blocking body 8 is inserted and fixed on the slot 73. The slot 73 is a guide groove extending outward from the side of the window 71. This is not only conducive to the setting of the heat dissipation channel, but also conducive to the maintenance, cleaning, and replacement of the heat dissipation channel. The blocking body 8 of this embodiment is a rectangular shell formed by sheet metal, and the inner cavity of the shell is the heat dissipation channel. The inner heat dissipation hole 841 connected to the window 71 is provided on one side of the shell corresponding to the window 71, and the outer heat dissipation hole 841 connected to the other side is provided.
[0040] The blocking body 8 is provided with a lateral boss 84 at one end, and a heat dissipation hole 841 connected to the heat dissipation channel is provided on the lateral boss 84. The slot 73 is provided with a lateral jack 74 corresponding to the lateral boss 84. The heat dissipation hole 841 is conducive to the heat dissipation of the heat dissipation channel, and the boss is conducive to the fixation of the blocking body 8. The blocking body 8 is provided with a port 85 connected to the heat dissipation channel at the other end, and the port 85 is blocked by a clamping strip 9. The clamping strip 9 is provided with clamping holes 91 at both ends, and the clamping holes 91 are fixed to the clamping heads 86 at the upper and lower sides of the port 85. The side wall of the port 85 located on one side of the window 71 extends outward, and the extended part 87 is connected to the frame 7 by bolts 4, and the extended part 87 is provided with screw holes 871.
[0041] Since the electrical box is provided with heat dissipation holes, the air pressure difference formed under different temperature environments is used to carry out the strong and weak convection exchange of cold and heat. The cold high and high pressure air outside the reactor box pushes the airflow to enter through the heat dissipation grille and heat dissipation holes of the reactor box, squeezes the hot air in the reactor box to flow out, forms cold and heat exchange, and achieves the purpose of reducing the temperature in the reactor box. The heat dissipation box can be die-casted by using engineering plastics using an injection molding process, and heat dissipation grilles and heat dissipation ports are provided to be staggered so that the heat in the reactor box flows out through the heat dissipation ports to the heat dissipation grilles through the cold and hot pressure difference; openings are provided at the front and rear ends of the sheet metal strip, and heat dissipation holes are provided at the left and right ends and the bottom. The openings and heat dissipation holes at the two ends form an air pressure difference to carry out cold and heat exchange to achieve the purpose of heat dissipation. The staggered blocks and inclination angles on the spatial structure are used to provide the kinetic energy provided to the water and the gravity of the water itself, and the water is blocked outside and the water that may enter is discharged by setting a staggered structure, drainage inclination angle, and drainage holes. A heat dissipation box cover is provided to buckle with the heat dissipation box to prevent water droplets from entering from the end side of the heat dissipation box. An inclination angle of a=2° is set at both ends, and the kinetic energy brought by the inclination angle to the water droplets is used to discharge the water droplets that may enter the port. Drain holes are set at the guide groove of the reactor box and the lower end of the heat dissipation box to use the gravity of water to discharge the water that enters the waterproof heat dissipation box. Two sheet metal strips are welded to the bottom of the reactor box cover using welding technology; square openings are opened on the front and rear sheet metal of the reactor box, and guide grooves and limit holes are set for embedding and fixing the heat dissipation box.
[0042] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described, or replace them in similar ways, without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.
[0043] Although some terms are used more frequently in this article, the possibility of using other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model. The execution order of actions, steps, etc. in the devices and methods shown in the specification and the drawings can be implemented in any order as long as there is no special explicit limitation on the order and the output of the previous processing is not used in the subsequent processing. Similar sequential terms (for example, "first", "next", "secondly", "again", "then", etc.) used for the convenience of description do not mean that they must be implemented in such an order.
[0044] Those skilled in the art should understand that all directional references (for example, above, below, upward, up, downward, down, top, bottom, left, right, vertical, horizontal, etc.) are used descriptively in the drawings to facilitate the reader's understanding, and do not represent limitations (for example, on position, orientation or use, etc.) on the scope of the present invention as defined by the appended claims. They are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the referred device or element must have a specific orientation or be constructed and operated in a specific orientation. The directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.
[0045] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.
[0046] In addition, some vague terms (e.g., substantially, certain, generally, etc.) may refer to slight inaccuracies or slight deviations of conditions, quantities, values, or dimensions, some of which are within the manufacturing deviation or tolerance range. It should be noted that the use of words such as "first" and "second" to define components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above words have no special meanings and therefore cannot be understood as limiting the scope of protection of this application.
Claims
1. An electrical box, comprising a box body, characterized in that: A heat conduction cavity is provided in the box body, a first vent hole communicating with the outside of the box body is provided at the end of the heat conduction cavity, a second vent hole communicating with the inside of the box body is provided on the cavity wall of the heat conduction cavity, and a drainage slope is provided in the heat conduction cavity from the second vent holes to the first vent hole.
2. The electrical box according to claim 1, characterized in that: Two first vent holes are oppositely arranged at two ends of the heat conduction cavity, and the second vent hole is located in the middle of the heat conduction cavity.
3. The electrical box according to claim 2, characterized in that: The heat conduction cavity comprises a groove body, and the groove body and the upper side wall of the box body enclose the heat conduction cavity, and notches at both ends of the groove body expose the box body to form the first vent hole.
4. The electrical box according to claim 1, 2 or 3, characterized in that: The drainage slope has an inclination angle of not less than 2°.
5. The electrical box according to claim 1, characterized in that: The side wall of the box body includes an inner wall and an outer wall, a heat dissipation channel is arranged between the inner wall and the outer wall, the inner wall is provided with inner heat dissipation holes connected with the heat dissipation channel, the outer wall is provided with outer heat dissipation holes connected with the heat dissipation channel, and the inner heat dissipation holes and the outer heat dissipation holes are arranged alternately.
6. The electrical box according to claim 5, characterized in that: The external heat dissipation holes are a plurality of parallel grid holes distributed on the outer side wall.
7. The electrical box according to claim 6, characterized in that: A drainage hole is arranged at the bottom of the heat dissipation hole.
8. The electrical box according to claim 5, characterized in that: The side wall of the box body is provided with a window and a blocking body for blocking the window, a slot is provided on the side of the window, and the blocking body is inserted and fixed on the slot.
9. The electrical box according to claim 8, characterized in that: The end side of the blocking body is provided with a lateral boss, the lateral boss is provided with a heat dissipation hole connected to the heat dissipation channel, and the slot is provided with a lateral plug hole corresponding to the lateral boss.
10. Air conditioning equipment, characterized in that It comprises the electrical box as claimed in any one of claims 1 to 9.