Box body and heat pump unit

Abstract

The utility model relates to a box body. The box body comprises a bottom cover, a panel and a maintenance plate, the bottom cover and the panel are enclosed to form an accommodating space, and a part to be maintained is fixedly arranged in the accommodating space; the maintenance plate is movably connected with the panel; a plurality of access holes are formed in the panel, and the access holes are right opposite to the to-be-overhauled part; the maintenance plate abuts against the panel and covers the maintenance opening. A drainage groove is formed in the bottom of the overhauling plate, and a drainage hole is formed in the bottom of the drainage groove. According to the box body provided by the utility model, the sealing performance of the box body is ensured, the part, needing to be overhauled, of the box body can be conveniently and quickly opened for overhauling, and water entering the box body can be timely discharged so as to better protect components in the box body.

Description

Technical Field

[0001] The utility model relates to the field of heat pump units, in particular to a box body and a heat pump unit. Background Art

[0002] The components of the heat pump unit body need to be installed in a box to protect them, and the traditional heat pump box is usually assembled and fixed with multiple panels using a large number of screws. When the components of the heat pump unit body need to be wired or repaired, it is often necessary to unscrew a large number of screws to open the box shell, which is time-consuming and difficult to operate. Moreover, after the wiring or maintenance is completed, it is difficult to ensure the good airtightness of the box when the box is assembled again, which can easily cause water, dust and other objects to enter the box, affecting the performance and life of the components of the heat pump unit body. Utility Model Content

[0003] Based on this, the purpose of the utility model is to provide a box body, on the panel of the box body, a plurality of inspection ports facing the parts to be inspected are arranged, the inspection ports are covered and sealed by an inspection plate abutting the panel, and drainage holes are arranged at the bottom of the inspection plate. While ensuring the sealing of the inspection ports, the parts of the box body that need to be inspected can be opened conveniently and quickly for inspection, and the water entering the box body can be discharged in time to better protect the box body and its internal components.

[0004] Another object of the utility model is to provide a heat pump unit, which facilitates the wiring and maintenance of the main components of the heat pump unit inside the box by setting the above-mentioned box, while facilitating maintenance and ensuring the closedness of the box to protect the main components of the heat pump unit inside the box.

[0005] A box body, comprising:

[0006] A bottom cover, a panel and an inspection plate, wherein the bottom cover and the panel are arranged to form a receiving space, and the components to be inspected are fixedly arranged in the receiving space; the inspection plate is movably connected to the panel;

[0007] The panel is provided with a plurality of inspection openings;

[0008] The access plate abuts against the panel and covers the access opening;

[0009] A drainage groove is arranged at the bottom of the inspection plate, and a drainage hole is arranged at the bottom of the drainage groove.

[0010] Furthermore, the drainage groove is protruded toward the panel relative to the plane of the inspection plate.

[0011] Furthermore, a plurality of inclined surfaces are arranged at the bottom of the drainage groove, and the drainage holes are arranged at the ends of the flow paths of the inclined surfaces along the flow direction of the water flow.

[0012] Furthermore, the box body also includes: a plurality of water-guiding structures, which are arranged around the edge of the inspection opening; the water-guiding structures are clamped between the panel and the inspection plate; when the inspection plate and the panel are in abutment, the water-guiding structures abut against the panel and the inspection plate at the same time.

[0013] Furthermore, in the horizontal width direction of the inspection opening, both ends of the water guide structure protrude from both ends of the inspection opening respectively.

[0014] Furthermore, a gap is formed in the water guiding structure below the inspection port.

[0015] Furthermore, the water guiding structure includes a water retaining member and a water guiding member; one end of the water retaining member is fixedly connected to the panel, and the other end is connected to the water guiding member to form a water guiding groove; the water guiding member abuts against the inspection plate.

[0016] Furthermore, the box body also includes: a plurality of hinges; the inspection plate and the panel are rotatably connected via the hinges.

[0017] Furthermore, the panel and the access plate are provided with matching sliding connection structures, and the panel and the access plate are slidingly connected via the sliding connection structures.

[0018] A heat pump unit comprises the box body described in the utility model.

[0019] The beneficial effects of the utility model are:

[0020] (1) The inspection plate is movably connected to the panel, and there are several inspection ports on the panel, which can conveniently and quickly open the box to inspect the components that require regular maintenance, such as the electric control and system, thus reducing the difficulty of maintenance and improving the efficiency of maintenance;

[0021] When refrigerant leakage occurs, the inspection panel can be opened quickly to discharge the refrigerant leakage from the inspection port in time, which can accelerate the reduction of refrigerant concentration, improve safety, and prevent refrigerant fire and explosion;

[0022] (2) The lower part of the inspection panel is provided with drainage grooves and drainage holes, which are conducive to the timely discharge of water entering the box body, and can prevent water accumulation in the box body from causing damage to the box body and the internal unit;

[0023] (3) The water guide structure of the inspection port can effectively prevent rainwater from flowing into the inspection port, thereby protecting the unit inside the box, while further improving the airtightness of the box and preventing noise from being transmitted;

[0024] In the case where the bottom edge of the inspection port is not surrounded by a water guide structure, if a small amount of refrigerant in the box leaks and is not discovered in time, the refrigerant can be discharged from the bottom edge of the inspection port and then discharged from the drainage hole to prevent the leaked refrigerant from accumulating in the box for a long time and causing fire and explosion;

[0025] (4) A matching fixed connection structure is provided on the access panel and the panel. The machine in the box will generate vibration during operation, and the external environment will also interfere with the box. In order to prevent the access panel from becoming loose or even opening after being closed due to the vibration generated by the operation of the machine in the box or the influence of the external environment;

[0026] (5) A seal is provided at the joint between the inspection plate and the panel to avoid collision noise between the inspection plate and the panel and damage and rust of the paint surface caused by the collision, while reducing water leakage from the top.

[0027] In order to better understand and implement the present invention, the present invention is described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A schematic diagram of the box structure provided in an embodiment of the present application;

[0029] Figure 2 An exploded diagram of the box structure provided in the embodiment of the present application;

[0030] Figure 3 A rear side view of the access panel of the box provided in the embodiment of the present application;

[0031] Figure 4 A partial enlarged view of the A portion of the box provided in the embodiment of the present application;

[0032] Figure 5 A cross-sectional view of the water guide structure of the box provided in an embodiment of the present application;

[0033] Figure 6 A schematic diagram of the partial structure of a box provided in an embodiment of the present application.

[0034] In the figure: 10-inspection plate; 11-drainage groove; 12-clamping piece; 111-drainage hole; 20-panel; 21-inspection port; 30-water guide structure; 31-water retaining member; 32-water guide member; 33-water guide groove; 22-clamping slot; 40-hinge; 50-sealing member. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] In the description of the present invention, it should be noted that the terms "vertical direction", "upper", "lower", "horizontal" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, "first", "second", "third", and "fourth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0037] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, a mechanical connection, an electrical connection, a direct connection, or a connection through an intermediate medium, or the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] At present, the main components of the heat pump unit are generally installed in a fixed and sealed integral box. After the entire heat pump unit is installed on the base, the technicians need to open the box to operate the wiring, program burning, etc., and the box also needs to be opened for operation when the main components of the heat pump unit are maintained during use. The main components of the heat pump unit are numerous and complex, and the overall structure is large. When a problem occurs, it is likely that the entire box needs to be opened for inspection. In actual operation, the inventor thought of concentrating the electrical control, system and other components of the heat pump unit that need regular maintenance in one area, so that only the local panel of the box needs to be opened for inspection and operation. At the same time, considering that the heat pump unit needs to be waterproof, dustproof and noise-proof when installed outdoors, there are certain requirements for the sealing of the box. By designing the structure, connection method, sealing and other aspects of the local panel part, the airtightness of the entire box can be ensured while the part of the box that needs to be operated can be opened conveniently and quickly.

[0039] Based on this, the utility model provides a box body, on the panel of the box body, a plurality of inspection openings facing the components to be inspected are arranged, and the inspection openings are covered and sealed by an inspection plate abutting against the panel, so that the parts of the box body that need to be operated can be opened conveniently and quickly while ensuring the sealing of the box body.

[0040] See also Figures 1 to 3 This embodiment provides a box body, including: a bottom cover, an inspection plate 10 and a panel 20, the bottom cover and the panel 20 are arranged to form a receiving space, and the parts to be inspected are fixed in the receiving space; the inspection plate 10 is movably connected to the panel 20.

[0041] Specifically, a drainage groove 11 is provided at the bottom of the access panel 10, and the drainage groove 11 is protruded toward the panel 10 relative to the plane of the access panel 10. A drainage hole 111 is provided at the bottom of the drainage groove 11, and the drainage hole 111 is used to drain the water entering the box body in time to prevent the water accumulation in the box body from damaging the box body and its internal components.

[0042] It is understandable that the bottom of the drainage groove 11 can be set in various forms, and the shape of the drainage hole 111 can be set in any shape and size. Figure 3 As an example, in this embodiment, the bottom surface of the drainage groove 11 is a plane, and the drainage hole 111 is set to be circular.

[0043] In some other embodiments, a plurality of inclined surfaces are provided at the bottom of the drain groove 11, and the drainage holes 111 are provided at the end of the flow path of the inclined surfaces along the flow direction of the water, so that the water flowing into the drain groove 11 can flow quickly along the inclined surfaces to the bottom of the inclined surfaces, and then be discharged from the drainage holes 111, so as to prevent water from accumulating at the bottom of the drain groove 11 and causing rust on the box body.

[0044] Furthermore, the internal cross-sectional shape of the drainage groove 11 can also be set to other forms that are conducive to the water flowing to the bottom, such as a "V" shape, an inverted trapezoid, etc.

[0045] Furthermore, in order to prevent dust, small insects and other debris from entering the box through the drainage hole 111 , a filter cover is provided at the bottom of the drainage groove 11 and disposed on the drainage hole 111 .

[0046] The panel 20 is a side panel of the box, and a plurality of inspection openings 21 are opened on the panel 20, and the inspection openings 21 are opposite to the components to be inspected. The inspection plate 10 abuts against the panel 20 and covers the inspection openings 21 to ensure the sealing of the box and prevent external debris such as rainwater and dust from entering the box and affecting the performance and life of the components in the box.

[0047] See also Figure 4The box body also includes a plurality of water-conducting structures 30, which are arranged around the edge of the inspection port 21, and the two ends thereof are respectively abutted against the panel 20 and the inspection plate 10. The two ends of the water-conducting structure 30 in the horizontal direction protrude from the two ends of the inspection port 21 to ensure that the inspection port 21 can be completely covered, and rainwater flowing in from the top can be more effectively prevented from flowing into the inspection port 21, thereby protecting the components in the box body. Furthermore, the water-conducting structure 30 is provided with a gap at a position below the inspection port 21. When the inspection plate 10 is closed, if a small amount of refrigerant in the box body leaks, the refrigerant can be discharged from the gap below the inspection port 21, and then discharged from the drainage hole 111, thereby preventing the leaked refrigerant from accumulating for a long time and causing fire and explosion. At the same time, the gap is also beneficial to the heat dissipation of the box body.

[0048] As an example, in this embodiment, the inspection opening 21 is a rectangular inspection opening, and the water guide structure 30 is in an inverted U shape, surrounding the upper side and both side edges of the inspection opening 21, while the water guide structure 30 is not provided below the inspection opening 21 to form the gap. The three-side setting can ensure that the water flowing down from the top of the box body is guided to the drainage groove 11 through the water guide groove 33, which can effectively prevent water and save materials and reduce costs. At the same time, the bottom gap is conducive to the discharge of leaked refrigerant in the box body.

[0049] See also Figure 6 In another embodiment, the angle β between the water guiding structures 30 at the two side edges of the inspection port 21 and the water guiding structure 30 above is an obtuse angle. At this time, the inclined water guiding structures 30 on both sides are more conducive to guiding the water flowing down the water guiding groove 33 above the inspection port 21 away from the two sides of the inspection port 21.

[0050] In addition, by adjusting the slope of the water guide structure 30 on the side or changing the size and shape of the inspection opening 21, the two ends of the water guide structure 30 located at the inspection opening 21 above the panel 20 in the horizontal direction protrude from the two ends of the inspection opening 21 located below the panel 20 in the horizontal direction. In the horizontal width direction of the inspection opening 21, the two ends of the water guide structure 30 protrude from the two ends of the inspection opening 21 respectively. This arrangement can minimize the water guided down from the inspection opening 21 on the upper panel and flow into the inspection opening 21 below it, so that the water guided out of each inspection opening 21 flows from both sides of the panel 20 to the drainage groove 11. It can be understood that the cross-sectional shape of the water retaining member 31 can also be an arc shape, an inverted V shape, or other shapes that are conducive to water guiding, but is not limited to this.

[0051] Specifically, the water guide structure 30 includes a water retaining member 31 and a water guide member 32. The water guide member 32 and the panel 20 are respectively arranged at the two ends of the water retaining member 31, and are surrounded by the water retaining member 31 to form a water guide groove 33 with a concave middle portion. The water guide groove 33 can more effectively guide the water flow to the drainage groove 11 when the water flow is large, and prevent the water flow from overflowing from the top of the water retaining member 31 into the inspection port 21.

[0052] See also Figure 5 In this embodiment, the water retaining member 31 is fixedly connected to the panel 20, preferably integrally welded, to prevent water from penetrating into the inspection port 21 from the connection between the water retaining member 31 and the panel 20. The side of the water retaining member 31 facing away from the inspection port 21 is a water retaining surface, and an angle α is formed between the water retaining surface and the panel 20, preferably a right angle or an acute angle, to better prevent water from flowing into the inspection port 21 from the end of the water retaining member 31 away from the panel 20.

[0053] As a preferred embodiment, the water guide 32 can be a soft rubber sealing strip with a certain thickness. By covering the water guide 32 on the end of the water retaining member 31 away from the panel 20, a water guide groove 33 is formed, and the water retaining surface of the water retaining member 31 is the bottom of the water guide groove 33. When the inspection plate 10 is buckled with the panel 20, the water guide 32 is sealed against the inspection plate 10. It is understandable that the water guide 32 can also be other components with a certain thickness. By fixing the water guide 32 to the end of the water retaining member 31 away from the panel 20, it serves as a side wall of the water guide groove 33 to prevent water from flowing through the water retaining member 31 into the accommodating space.

[0054] In some other embodiments, the water retaining member 31 is fixedly connected to the panel 20, and the water guiding member 32 is fixedly connected to the inspection plate 10. When the inspection plate 10 and the panel 20 are buckled together, the water guiding member 32 abuts against the end of the water retaining member 31 away from the panel 20. At this time, the water guiding member 32 and the panel 20 are respectively located on both sides of the water retaining member 31, and the end portions protrude from the water retaining surface, and are surrounded by the water retaining member 31 to form a water guiding groove 33.

[0055] In another embodiment, the water retaining member 31 may also be fixedly connected to the access panel 10, preferably integrally welded; the water guiding member 32 is disposed at one end of the water retaining member 31 that is away from the access panel 10, and is tightly fixedly connected to the water retaining surface of the water retaining member 31, and is surrounded by the water retaining member 31 to form a water guiding groove 33. When the access panel 10 is buckled with the panel 20, the water guiding member 32 is sealed against the panel 20, and water can also be prevented from flowing into the box body through the access opening 21.

[0056] The box body also includes a plurality of hinges 40, and the two movable leaves of each hinge 40 are respectively arranged on the inspection plate 10 and the panel 20. The inspection plate 10 is rotatably connected to the panel 20 through the hinges 40, thereby facilitating the opening and closing of the inspection plate 10, so as to facilitate the maintenance personnel to perform maintenance work from the inspection port 21. Preferably, one of the movable leaves of the hinge 40 is fixed to one side of the inspection plate 10 to make the opening and closing of the inspection plate 10 smoother. At the same time, the inspection plate 10 and the panel 20 are connected by the hinges 40. When a refrigerant leak occurs, the inspection plate 10 can be quickly opened, so that the leaked refrigerant is discharged from the inspection port 21 in time, accelerating the reduction of the concentration of the leaked refrigerant in the box, preventing the refrigerant from catching fire and exploding, and improving safety.

[0057] In another embodiment, the access panel 10 and the panel 20 are provided with a matching sliding connection structure, and the access panel 10 and the panel 20 are slidably connected through the sliding connection structure. The sliding connection structure includes a slide rail and a slider, the slide rail is arranged on the panel 20, and the slider is arranged on the access panel 10, or the slide rail is arranged on the access panel 10, and the slider is arranged on the panel 20. At the same time, a limiting structure is provided at both ends of the slide rail to prevent the slider from sliding out from both ends of the slide rail. The access panel 10 can be opened and closed conveniently and quickly through the sliding connection structure, so as to facilitate the staff to perform maintenance work from the access port 21, and when a refrigerant leak occurs, the access panel 10 can be quickly opened by sliding it, so that the leaked refrigerant is discharged from the access port 21 in time, accelerating the reduction of the concentration of the leaked refrigerant in the box, preventing the refrigerant from catching fire and exploding, and improving safety.

[0058] Furthermore, the box body also includes a plurality of seals 50, and the seals 50 are arranged at the abutment portion between the access panel 10 and the panel 20. It is understandable that the seals 50 can be arranged on the access panel 10, or on the panel 20, or both. As an example, in this embodiment, the seals 50 are arranged on the access panel 10, and the seals 50 are made of soft rubber material. When the access panel 10 is closed, the seals 50 made of soft rubber have good elasticity and shock absorption effect, which can prevent the access panel 10 from directly colliding with the panel 20 to generate noise and damage and rust of the paint surface; at the same time, when the access panel 10 is closed, the seals 50 abut against the panel 20 and abut tightly, which is tighter than the direct sheet metal bonding between the access panel 10 and the panel 20, and can reduce water leakage from the gap at the top of the box body due to rain and other reasons.

[0059] Furthermore, since the machine in the box will vibrate when working, and the outdoor environment will also interfere with the box, it is easy to cause the components of the box to loosen. In order to prevent the access panel 10 from loosening or even opening after closing, a matching fixed connection structure is provided on the access panel 10 and the panel 20. It can be understood that the fixed connection structure can be any one of a mortise and tenon fixed connection structure, a buckle fixed connection structure, a slot fixed connection structure, an embedded fixed connection structure, a concave-convex fixed connection structure, and an inserted fixed connection structure, and the fixed connection structure can achieve a stable connection between the access panel 10 and the panel 20 without additional screws.

[0060] See also Figure 1 As an example, in this embodiment, the fixed connection structure is a slot fixed connection structure, including a plurality of clips 12 arranged on a side of the access panel 10 close to the panel 20, one end of the clips 12 is fixed to the access panel 10, and the panel 20 is provided with a plurality of slots 22 matching the clips 12, and the plurality of clips 12 are inserted into the corresponding slots 22. This arrangement can further increase the stability of the connection between the access panel 10 and the panel 20, and the box body has no exposed additional fixed connection structure, which is more beautiful.

[0061] It is understandable that the positions of the clamping member 12 and the clamping slot 22 are not limited to the above-mentioned ones. The clamping member 12 may be disposed on the panel 20 , and the clamping slot 22 may be disposed on the access panel 10 .

[0062] Furthermore, in order to facilitate the operation of the operator, a handle is also provided on the inspection panel 10, which will not be described in detail here.

[0063] The embodiment of the present application also provides a heat pump unit, including a heat pump unit main body component and the box body.

[0064] Compared with the prior art, the beneficial effects of the technical solution of this application are:

[0065] (1) The inspection plate is movably connected to the panel, and there are several inspection ports on the panel, which can conveniently and quickly open the box to inspect the components that require regular maintenance, such as the electric control and system, thus reducing the difficulty of maintenance and improving the efficiency of maintenance;

[0066] When refrigerant leakage occurs, the inspection panel can be opened quickly to discharge the refrigerant leakage from the inspection port in time, which can accelerate the reduction of refrigerant concentration, improve safety, and prevent refrigerant fire and explosion;

[0067] (2) The lower part of the inspection panel is provided with drainage grooves and drainage holes, which are conducive to the timely discharge of water entering the box body, and can prevent water accumulation in the box body from causing damage to the box body and the internal unit;

[0068] (3) The water guide structure of the inspection port can effectively prevent rainwater from flowing into the inspection port, thereby protecting the unit inside the box, while further improving the airtightness of the box and preventing noise from being transmitted;

[0069] In the case where the bottom edge of the inspection port is not surrounded by a water guide structure, if a small amount of refrigerant in the box leaks and is not discovered in time, the refrigerant can be discharged from the bottom edge of the inspection port and then discharged from the drainage hole to prevent the leaked refrigerant from accumulating in the box for a long time and causing fire and explosion;

[0070] (4) A matching fixed connection structure is provided on the access panel and the panel. The machine in the box will generate vibration during operation, and the external environment will also interfere with the box. In order to prevent the access panel from becoming loose or even opening after being closed due to the vibration generated by the operation of the machine in the box or the influence of the external environment;

[0071] (5) A seal is provided at the joint between the inspection plate and the panel to avoid collision noise between the inspection plate and the panel and damage and rust of the paint surface caused by the collision, while reducing water leakage from the top.

[0072] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, and the utility model is also intended to include these modifications and modifications.

Claims

1. A box, characterized in that: include: A bottom cover, a panel and an inspection plate, wherein the bottom cover and the panel are arranged to form a receiving space, and the components to be inspected are fixedly arranged in the receiving space; the inspection plate is movably connected to the panel; The panel is provided with a plurality of inspection openings; The access plate abuts against the panel and covers the access opening; A drainage groove is arranged at the bottom of the inspection plate, and a drainage hole is arranged at the bottom of the drainage groove.

2. The box according to claim 1, characterized in that: The drainage groove is protruded toward the panel relative to the plane of the access plate.

3. The box according to claim 2, characterized in that: The bottom of the drainage groove is provided with a plurality of inclined surfaces, and the drainage holes are arranged at the ends of the flow paths of the inclined surfaces along the flow direction of the water flow.

4. The box according to claim 3, characterized in that: Also includes: A plurality of water-conducting structures are arranged around the edge of the inspection opening; The water guide structure is sandwiched between the panel and the access plate; When the inspection plate and the panel are in abutment with each other, the water guide structure is in abutment with the panel and the inspection plate at the same time.

5. The box according to claim 4, characterized in that: In the horizontal width direction of the inspection opening, two end portions of the water guide structure protrude from two end portions of the inspection opening respectively.

6. The box according to claim 5, characterized in that: The water guide structure is provided with a gap, and the gap is arranged below the inspection port.

7. The box according to claim 6, characterized in that: The water guiding structure comprises a water retaining member and a water guiding member; One end of the water retaining member is fixedly connected to the panel, and the other end is connected to the water guiding member to form a water guiding groove; The water guide is in contact with the inspection plate.

8. The box according to claim 1, characterized in that: Also includes: A plurality of hinges; the inspection plate and the panel are rotatably connected via the hinges.

9. The box according to claim 1, characterized in that: The panel and the access plate are provided with matching sliding connection structures, and the panel and the access plate are slidably connected via the sliding connection structures.

10. A heat pump unit, characterized in that: The invention comprises a box body as described in any one of claims 1 to 9.

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