Evaporator fixing structure and air conditioner applying same

Abstract

The utility model discloses an evaporator fixing structure and an air conditioner applying the same, the evaporator fixing structure is arranged between an evaporator and a motor pressing plate, the evaporator fixing structure comprises a connecting plate, one side of the connecting plate facing the evaporator is provided with an inserting unit, and the inserting unit can be matched with a heat exchange tube of the evaporator. The face, facing the motor pressing plate, of the connecting plate is matched with the motor pressing plate in shape. According to the utility model, the connecting plate is arranged between the evaporator and the motor pressing plate, and the connecting plate and the heat exchange tube of the evaporator are fixed together through the inserting unit on the connecting plate, so that the side surface of the evaporator is tightly matched with the motor pressing plate, the sealing performance is good, and air leakage is avoided. Therefore, the technical problems that air leakage caused by poor sealing affects the performance of the air conditioner, and water leakage hidden dangers and quality hidden dangers exist in the indoor unit are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of air conditioners and relates to an evaporator fixing structure and an air conditioner using the same. Background Art

[0002] The air conditioner generally includes an indoor unit and an outdoor unit. During installation, the evaporator of the indoor unit is generally installed on the bottom shell. After the evaporator is assembled, its upper and lower ends cooperate with the bottom shell, and the side cooperates with the motor pressure plate. The evaporator is located at the air outlet and the air outlet should be sealed.

[0003] The evaporator is generally a multi-fold structure. During the production process, the consistency of the evaporator angle fluctuates. When the angle deviates, the evaporator is not sealed properly and there is a certain gap between the evaporator and the motor plate. When the seal is not tight, the wind will be blown out from the gap without passing through the evaporator, resulting in air volume loss and affecting the performance of the air conditioner. It will also cause the exchange of hot and cold air here, forming condensed water, causing the indoor unit to have a risk of water leakage. In addition, a loose seal will also result in the evaporator having no fixed structure after assembly, and it will be subjected to force during transportation and handling, and there will be quality risks of collision and wear with surrounding parts. Utility Model Content

[0004] In view of this, the utility model provides an evaporator fixing structure and an air conditioner using the same, which solves the technical problem of affecting the performance and quality of the air conditioner due to the sealing problem of the evaporator.

[0005] In order to solve the above problems, according to one aspect of the present application, an embodiment of the utility model provides an evaporator fixing structure, which is arranged between the evaporator and the motor pressure plate, and the evaporator fixing structure includes a connecting plate, and a plug-in unit is provided on the side of the connecting plate facing the evaporator, and the plug-in unit can cooperate with the heat exchange tube of the evaporator, and the side of the connecting plate facing the motor pressure plate matches the shape of the motor pressure plate.

[0006] In some embodiments, the plug-in unit includes a clearance groove for fixing the heat exchange tube, and an insertion tongue inserted between adjacent heat exchange tubes. The clearance groove is opened on the connecting plate, and the insertion tongue is formed between adjacent clearance grooves.

[0007] In some embodiments, the bottom of the give-way groove is an arc structure, which is used to match the shape of the heat exchange tube; and the width of the give-way groove is greater than the outer diameter of the heat exchange tube.

[0008] In some embodiments, the heat exchange tubes have at least two rows, and the plug-in unit cooperates with a row of heat exchange tubes close to the motor pressure plate; after the plug tongue is inserted between adjacent heat exchange tubes, the distance between its end and another row of heat exchange tubes is not less than 1 mm.

[0009] In some embodiments, the corner at the front end of the inserting tongue is an arc-shaped structure.

[0010] In some embodiments, the plug-in unit further includes a first fixing member and a first fixing hole formed on the plug tongue, and the first fixing member passes through the first fixing hole to fix the connecting plate to the evaporator.

[0011] In some embodiments, the connecting plate includes a first section body and a second section body, and the first section body and the second section body have an angle matching the shape of the motor pressure plate; the plug-in unit is arranged on a side of the first section body facing the evaporator.

[0012] In some embodiments, a reinforcing rib is provided at the angle;

[0013] And / or the second section body and a section of the first section body close to the second section body have flanges, and the height of the flanges is 1.5mm-2.5mm.

[0014] In some embodiments, the plug-in unit further includes a second fixing member and a second fixing hole formed on the second section body, and the second fixing member passes through the second fixing hole to fix the connecting plate to the motor pressure plate.

[0015] According to another aspect of the present application, an embodiment of the present utility model provides an air conditioner, which includes the above-mentioned evaporator fixing structure.

[0016] Compared with the prior art, the evaporator fixing structure of the utility model has at least the following beneficial effects:

[0017] The evaporator fixing structure provided by the utility model is arranged between the evaporator and the motor pressure plate, and the evaporator fixing structure includes a connecting plate, and a plug-in unit is provided on the side of the connecting plate facing the evaporator, and the plug-in unit can cooperate with the heat exchange tube of the evaporator, and the side of the connecting plate facing the motor pressure plate matches the shape of the motor pressure plate.

[0018] In this embodiment, a connecting plate is arranged between the evaporator and the motor pressing plate, and the connecting plate and the heat exchange tube of the evaporator are fixed together through the plug-in unit on the connecting plate, so that the side of the evaporator and the motor pressing plate are closely matched, so that they can be well sealed without air leakage, thereby solving the technical problems of affecting the performance of the air conditioner, causing water leakage and quality risks of the indoor unit due to air leakage caused by poor sealing.

[0019] The air conditioner provided by the present invention is designed based on the above-mentioned evaporator fixing structure. Its beneficial effects refer to the beneficial effects of the above-mentioned evaporator fixing structure, which will not be described in detail here.

[0020] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the utility model in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 This is the front view of a conventional evaporator;

[0023] Figure 2 It is a partial cross-sectional view of a conventional evaporator;

[0024] Figure 3 It is a structural schematic diagram of an evaporator fixing structure provided by an embodiment of the utility model after being matched with an evaporator and a motor pressing plate;

[0025] Figure 4 It is a cross-sectional view of an evaporator fixation provided by an embodiment of the utility model;

[0026] Figure 5 is another cross-sectional view of an evaporator fixing structure provided by an embodiment of the utility model;

[0027] Figure 6 is another cross-sectional view of an evaporator fixing structure provided by an embodiment of the utility model;

[0028] Figure 7 is another cross-sectional view of an evaporator fixing structure provided by an embodiment of the utility model;

[0029] Figure 8 It is another cross-sectional view of an evaporator fixing structure provided by an embodiment of the utility model.

[0030] in:

[0031] 1. Evaporator; 11. Heat exchange tube;

[0032] 2. Motor pressure plate;

[0033] 3. Connecting plate; 31. First section of the body; 32. Second section of the body; 33. Reinforcement ribs; 34. Flanging;

[0034] 4. Plug-in unit; 41. Make-way groove; 42. Insert tongue; 43. First fixing hole; 44. Second fixing hole. DETAILED DESCRIPTION

[0035] In order to further explain the technical means and effects adopted by the utility model to achieve the predetermined utility model purpose, the specific implementation methods, structures, features and effects of the utility model application are described in detail below in conjunction with the accompanying drawings and preferred embodiments. In the following description, different "one embodiment" or "embodiment" does not necessarily refer to the same embodiment. In addition, specific features, structures, or characteristics in one or more embodiments may be combined in any suitable form.

[0036] In the description of the present invention, it should be clarified that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence; the terms "vertical", "lateral", "longitudinal", "front", "rear", "left", "right", "up", "down", "horizontal", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention, and do not mean that the referred device or element must have a specific direction or position, and therefore cannot be understood as a limitation on the present invention.

[0037] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. 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] Example 1

[0039] This embodiment provides an evaporator fixing structure, such as Figure 1-8As shown, the evaporator fixing structure is arranged between the evaporator 1 and the motor pressure plate 2, and the evaporator fixing structure includes a connecting plate 3, and a plug-in unit 4 is provided on the side of the connecting plate 3 facing the evaporator 1, and the plug-in unit 4 can cooperate with the heat exchange tube 11 of the evaporator 1, and the side of the connecting plate 3 facing the motor pressure plate 2 matches the shape of the motor pressure plate 2.

[0040] Specifically, Figure 1 and Figure 2 As shown, the traditional evaporator 1 is generally a multi-fold structure composed of three parts. During the production process, the consistency of the bending angle of the evaporator 1 fluctuates. When the angle deviates, the evaporator 1 is not sealed properly, and there is a certain gap between it and the motor plate 2, resulting in poor sealing effect. When the seal is not tight, the blown wind will be blown out from the gap without passing through the evaporator, resulting in air volume loss, affecting the performance of the air conditioner. It will also cause the exchange of hot and cold air here, thereby forming condensed water, causing the indoor unit to have a risk of water leakage. In addition, a loose seal will also result in the evaporator having no fixed structure after assembly, and it will be subjected to force during transportation and handling, and there will be quality risks of collision and wear with surrounding parts.

[0041] like Figure 3 As shown, the evaporator fixing structure provided in this embodiment is provided with a connecting plate 3 between the evaporator 1 and the motor pressing plate 2, and the connecting plate 3 is fixed with the heat exchange tube 11 of the evaporator 1 through the plug-in unit 4 on the connecting plate 3, so that the side of the evaporator 1 and the motor pressing plate 2 are closely matched, so that they can be well sealed without air leakage. Thus, the technical problem of air leakage due to poor sealing affecting the performance of the air conditioner, causing the indoor unit to have water leakage and quality risks is solved.

[0042] In addition, the side of the connecting plate 3 facing the motor pressure plate 2 matches the shape of the motor pressure plate 2, and mainly plays a sealing role here. Therefore, the side of the connecting plate 3 facing the motor pressure plate 2 is as similar as possible to the mating surface structure of the motor pressure plate 2. This setting method can ensure a better sealing effect.

[0043] More specifically, since the evaporator 1 of the indoor unit is in a humid environment for a long time in the cooling mode, the connecting plate 3 is installed on the evaporator 1, so the material of this part must be selected from the hot-dip galvanized plate Q235A with good corrosion resistance and not easy to rust when exposed to water. Since the connecting plate 3 mainly plays a fixing role, the structural strength needs to be met, so a plate structure with a thickness of 1.15mm and a width of 1276mm is selected.

[0044] In a specific embodiment, Figure 1-Figure 8As shown, the plug-in unit 4 includes a clearance groove 41 for fixing the heat exchange tube 11 and an insertion tongue 42 inserted between adjacent heat exchange tubes 11 . The clearance groove 41 is opened on the connecting plate 3 , and the insertion tongue 42 is formed between adjacent clearance grooves 41 .

[0045] The connecting plate 3 is a plate-like structure, and one side of the connecting plate 3 is processed inwardly to form a plurality of spaced-apart make-way grooves 41, the number of which matches the number of heat exchange tubes 11 on the evaporator 1. Of course, in the specific implementation process, the evaporator 1 actually includes a plurality of evaporator splits of different sizes. This embodiment is mainly used in conjunction with one of the evaporator splits, and the number of the make-way grooves 41 can be the same as the number of heat exchange tubes 11 corresponding to the evaporator splits.

[0046] Insertion tongues 42 are formed between adjacent clearance grooves 41, and the insertion tongues 42 and clearance grooves 41 are arranged at intervals. This arrangement is mainly used to correspond to the distribution of the heat exchange tubes 11 (ie, the copper tubes mentioned above) to achieve the coordination between the two.

[0047] The number of the make-way grooves 41 on the connecting plate 3 is determined according to the number of copper tubes at the edge of the front small evaporator, because the make-way grooves 41 are mainly used to make way for the copper tubes. For example, if there are three copper tubes on the small evaporator of this machine, then three make-way grooves 41 on the connecting plate 3 need to be designed.

[0048] More specifically, in one of the embodiments, assuming that there are three corresponding heat exchange tubes 11, the specific process of processing the plug-in unit 4 on the connecting plate 3 of the plate-like structure is as follows: the first end of the connecting plate 3 is a plug tongue 42, and the first makeshift groove 41 is processed after leaving enough width for the plug tongue 42, and then the width of the second plug tongue 42 is reserved again, and the second makeshift groove 41 is processed, and then the width of the third plug tongue 42 is reserved, and the third makeshift groove 41 is processed, and the other end of the third makeshift groove 41 is a protruding structure, which is used to ensure that it can be clamped on the outside of the last heat exchange tube 11.

[0049] In addition, in order to ensure the stability of the connecting plate 3, in principle, the edge of the connecting plate 3 is provided with an inserting tongue 42, and no clearance groove 41 is processed.

[0050] In a specific embodiment, the bottom of the clearance groove 41 is an arc structure, which is used to match the shape of the heat exchange tube 11 ; and the groove width of the clearance groove 41 is greater than the outer diameter of the heat exchange tube 11 .

[0051] The bottom of the clearance groove 41 is designed to be an arc structure, which is similar to the bottom structure of the copper tube (i.e., the heat exchange tube 11). The width of the clearance groove 41 only needs to be slightly larger than the outer diameter of the copper tube and should not interfere with the copper tube to avoid scratches or flattening of the copper tube during assembly.

[0052] In a specific embodiment, the heat exchange tubes 11 have at least two rows, and the plug-in unit 4 cooperates with a row of heat exchange tubes 11 close to the motor pressure plate 2; after the plug tongue 42 is inserted between adjacent heat exchange tubes 11, the distance between its end and the other row of heat exchange tubes 11 is not less than 1 mm.

[0053] Assuming that the heat exchange tubes 11 have two rows, with the first row close to the motor pressure plate 2 and the second row away from the motor pressure plate 2, the plug-in unit 4 cooperates with the first row of heat exchange tubes 11, and the plug-in tongue 42 is inserted between two adjacent heat exchange tubes in the first row of heat exchange tubes 11, and each heat exchange tube 11 is clamped in the corresponding give way groove 41. At this time, the distance between the end of the plug-in tongue 42 and the second row of heat exchange tubes should not be less than 1 mm.

[0054] More specifically, the width of the tongue 42 is determined according to the spacing between the two copper tubes, so that the tongue 42 does not touch the copper tubes on both sides after being inserted, to avoid interference during assembly. The depth of the tongue 42 is determined so that the front end of the tongue 42 does not touch the copper tube below after assembly, and a gap greater than 1 mm is maintained as much as possible to avoid interference.

[0055] In a specific embodiment, the corner at the front end of the inserting tongue 42 is an arc-shaped structure.

[0056] The front corner of the insert tongue 42 is designed to be an arc structure to prevent the heat exchange tube 11 from being damaged by the sharp corner due to improper assembly by the worker during the insertion.

[0057] In a specific embodiment, the plug-in unit 4 further includes a first fixing member and a first fixing hole 43 formed on the plug tongue 42 , and the first fixing member passes through the first fixing hole 43 to fix the connecting plate 3 to the evaporator 1 .

[0058] Specifically, when three plug tongues 42 are provided, a first fixing hole 43 is provided on the first and last plug tongues 42; when five plug tongues 42 are provided, a first fixing hole 43 can be provided on the first plug tongue, the third plug tongue, and the fifth plug tongue; of course, other opening methods are also possible, which are not specifically limited here, as long as the evaporator 1 and the connecting plate 3 can be fixed together. In addition, the first fixing hole 43 is provided at the middle position of the corresponding plug tongue 42.

[0059] More specifically, the first fixing member is a self-tapping screw, and the first fixing hole 43 is a screw hole; when three tongues 42 are provided, a screw hole is opened on each of the front and rear tongues 42, for a total of two screw holes, and two self-tapping screws are used to fix the connecting plate 3 on the evaporator 1.

[0060] In a specific embodiment, the connecting plate 3 includes a first section body 31 and a second section body 32. Figure 8As shown, there is an angle between the first section body 31 and the second section body 32 that matches the shape of the motor pressure plate 2 ; the plug-in unit 4 is arranged on a side of the first section body 31 facing the evaporator 1 .

[0061] In addition, corresponding to the evaporator and motor pressure plate of the conventional air conditioner indoor unit, the angle is 195°. Figure 8 shown.

[0062] More specifically, the first section body 31 and the second section body 32 are integrally formed as a connecting plate 3, and the second section body 32 is mainly used to fix the connecting plate 3 on the motor pressure plate 2 in the vertical direction. Due to the structural changes of the motor pressure plate 2 and the evaporator 1, the angle between the first section body 31 and the second section body 32 needs to be designed to meet the corresponding structural changes.

[0063] In a specific embodiment, a reinforcing rib 33 is provided at the angle;

[0064] Due to the angle change in the matching part with the motor pressure plate 2, the connection between the second section body 32 of the connecting plate 3 and the first section body 31 is bent, and a diamond-shaped reinforcement rib 33 is designed at the bending part to increase the strength here and avoid breakage after bending stress.

[0065] The second section body 32 and a section of the first section body 31 close to the second section body 32 have flanges 34, and the height of the flanges 34 is 1.5 mm-2.5 mm. The design of the flanges 34 can increase the overall structural strength.

[0066] In a specific embodiment, the plug-in unit 4 further includes a second fixing member and a second fixing hole 44 formed on the second section body 32 , and the second fixing member passes through the second fixing hole 44 to fix the connecting plate 3 and the motor pressure plate 2 .

[0067] More specifically, the second fixing hole 44 is a waist-shaped screw hole, and the second fixing member is a screw. A waist-shaped screw hole is opened in the middle area of ​​the lower end of the second section body 32, and a screw is used to vertically fix the motor pressing plate 2. In addition, the waist-shaped screw hole can prevent the angle between the motor pressing plate 2 and the evaporator 1 from deviating, and the hole position is difficult to align.

[0068] The assembly method of the evaporator fixing structure provided in this embodiment is as follows:

[0069] First, pick up the connecting plate 3, align the slot 41 with the copper tube, align the screw hole with the hole on the evaporator, use two screws to fix the connecting plate 3 on the evaporator 1, and then use one screw to fix the connecting plate 3 on the motor pressure plate 2.

[0070] The evaporator fixing structure provided in this embodiment is provided with a connecting plate connecting the side of the evaporator and the motor pressure plate, fixing the side of the evaporator and the motor pressure plate together, so that they can be well sealed and no air leakage occurs. The shape of the connecting plate is designed to be tooth-shaped according to the pipeline structure on the left side of the evaporator, making way for the copper tube on the left side, just inserting the copper tube, and using two self-tapping screws to fix the side to the evaporator. At the same time, the lower end is similar in shape to the motor pressure plate (in order to better fit the motor pressure plate and avoid gaps), and a screw hole is designed vertically downward, which is used to use a screw to fix the connecting plate downward on the motor pressure plate, so that the front side of the evaporator is fixed, solving the problem of loose sealing, large gaps, and easy vibration, collision and wear if not fixed.

[0071] Example 2

[0072] This embodiment provides an air conditioner, which includes the evaporator fixing structure described in Embodiment 1.

[0073] In summary, it is easy for those skilled in the art to understand that, under the premise of no conflict, the above-mentioned advantageous technical features can be freely combined and superimposed.

[0074] The above are only preferred embodiments of the present invention, and are not intended to limit the present invention in any form. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. An evaporator fixing structure, characterized in that: The evaporator fixing structure is arranged between the evaporator and the motor pressure plate. The evaporator fixing structure includes a connecting plate. A plug-in unit is arranged on a side of the connecting plate facing the evaporator. The plug-in unit can cooperate with the heat exchange tube of the evaporator. The side of the connecting plate facing the motor pressure plate matches the shape of the motor pressure plate.

2. The evaporator fixing structure according to claim 1, characterized in that: The plug-in unit comprises a clearance groove for fixing the heat exchange tube and an insertion tongue inserted between adjacent heat exchange tubes. The clearance groove is arranged on the connecting plate, and the insertion tongue is formed between adjacent clearance grooves.

3. The evaporator fixing structure according to claim 2, characterized in that: The bottom of the give-way groove is an arc structure, which is used to match the shape of the heat exchange tube; and the groove width of the give-way groove is greater than the outer diameter of the heat exchange tube.

4. The evaporator fixing structure according to claim 2, characterized in that: The heat exchange tubes have at least two rows, and the plug-in unit cooperates with a row of heat exchange tubes close to the motor pressure plate; after the plug tongue is inserted between adjacent heat exchange tubes, the distance between its end and the other row of heat exchange tubes is not less than 1mm.

5. The evaporator fixing structure according to claim 2, characterized in that: The corner at the front end of the inserting tongue is an arc-shaped structure.

6. The evaporator fixing structure according to claim 2, characterized in that: The plug-in unit further includes a first fixing member and a first fixing hole formed on the plug-in tongue, and the first fixing member passes through the first fixing hole to fix the connecting plate to the evaporator.

7. The evaporator fixing structure according to any one of claims 2 to 6, characterized in that: The connecting plate comprises a first section body and a second section body, wherein an angle between the first section body and the second section body matches the shape of the motor pressure plate; and the plug-in unit is arranged on a side of the first section body facing the evaporator.

8. The evaporator fixing structure according to claim 7, characterized in that: A reinforcing rib is provided at the angle; And / or the second section body and a section of the first section body close to the second section body have flanges, and the height of the flanges is 1.5mm-2.5mm.

9. The evaporator fixing structure according to claim 7, characterized in that: The plug-in unit further includes a second fixing member and a second fixing hole formed on the second section body, and the second fixing member passes through the second fixing hole to fix the connecting plate to the motor pressure plate.

10. An air conditioner, characterized in that: The air conditioner comprises the evaporator fixing structure according to any one of claims 1-9.

Images