Refrigerator evaporator case structure

Abstract

The application relates to a refrigerator evaporator shell structure, belonging to the field of refrigerator technology, which comprises a mounting base, a shell mounted on the mounting base, an upper top cover mounted on the top of the shell and a pressing strip arranged in the shell, the shell is formed by punching and stamping a plate material and is surrounded to form a mounting frame body for mounting an evaporator, the joint of the shell is outwardly folded to form a flange, and the pressing strip is sleeved on the flange. The application has the effects of enhancing the connecting strength of the joints at the two ends of the evaporator shell plate and improving the overall aesthetic degree of the evaporator shell.

Description

Technical Field

[0001] This application relates to the field of refrigerator technology, and in particular to a refrigerator evaporator housing structure. Background Technology

[0002] The evaporator is the core component of a refrigerator's refrigeration system. The evaporator consists of a shell and heat exchange pipes surrounding the shell. The refrigerant flowing in the heat exchange pipes is responsible for absorbing heat from inside the refrigerator to achieve a cooling effect.

[0003] Currently, the evaporator shell is typically formed by stamping sheet metal into a cylindrical shape. The two ends of the sheet metal are then fixed and connected, usually using riveting or welding. Finally, expanding foam is used to attach the evaporator shell to the refrigerator body. However, when riveting the two ends of the sheet metal, gaps can easily appear at the joint, allowing expanding foam to enter the evaporator shell, thus affecting heat exchange efficiency and reducing aesthetics. While welding provides higher connection strength, it is more cumbersome to install and can easily cause deformation or burns to the evaporator shell surface. Utility Model Content

[0004] In order to enhance the connection strength at the joints of the two ends of the evaporator shell plate and improve the overall aesthetics of the evaporator shell, this application provides a refrigerator evaporator shell structure.

[0005] The refrigerator evaporator shell structure provided in this application adopts the following technical solution:

[0006] A refrigerator evaporator housing structure includes a mounting base, a housing mounted on the mounting base, an upper cover mounted on the top of the housing, and a pressure strip fitted to the housing. The housing is formed by stamping sheet metal and enclosing a mounting frame for mounting the evaporator. The joint of the housing is folded outward to form a flange, and the pressure strip is fitted onto the flange.

[0007] By adopting the above technical solution, since the shell joint is folded outward to form a flange, and the pressure strip is sleeved on the flange and attached to the shell, it helps to enhance the connection strength at the joint of the two ends of the evaporator shell plate. This ensures that after the evaporator shell is connected to the main body of the refrigerator with foam, the foam will not seep into the shell. At the same time, it eliminates the unsightly marks caused by traditional riveting or welding, which helps to improve the overall aesthetics of the evaporator shell.

[0008] Optionally, the flange includes an extension and a fitting portion connecting the extension and the housing. The pressure strip is provided with a groove for arranging the flange. The extensions of the two sets of flanges are arranged at an angle away from each other. The groove has a first inclined surface that fits with the extension.

[0009] By adopting the above technical solution, a specific structure for the cooperation between the flange and the pressure strip is disclosed. Since the flange can be arranged in the arrangement groove of the pressure strip, and the first inclined surface of the arrangement groove can cooperate with the extension of the flange, it helps to improve the connection strength between the pressure strip and the flange, and also helps to improve the overall stability of the shell.

[0010] Optionally, the pressure strip is provided with a locking element on the inner wall of the arrangement groove for abutting the flange.

[0011] By adopting the above technical solution, since a locking element is provided on the inner wall of the groove for arranging the pressure strip, the locking element can abut against the extension of the flange, making the connection strength between the flange and the pressure strip more ideal and reducing the probability of the pressure strip sliding.

[0012] Optionally, the end of the pressure strip near the mounting base is provided with a guide slope for guiding it to be inserted into the flange.

[0013] By adopting the above technical solution, since a guide slope that is inclined upward toward the arrangement groove is provided at the bottom of the pressure strip, the setting of the guide slope can guide the pressure strip so that the flange can enter the arrangement groove, thereby making it easier for the operator to insert the pressure strip into the flange of the housing.

[0014] Optionally, the mounting base is provided with a first mounting groove for arranging the housing, and the mounting base has a second mounting groove on the inner wall of the first mounting groove for one end of the pressure strip to abut against.

[0015] By adopting the above technical solution, a first mounting groove is provided on the mounting base, which makes it easier for the operator to position the housing and place it on the mounting base. A second mounting groove is provided on the inner wall of the first mounting groove, so that one end of the pressure strip can abut against the second mounting groove, reducing the probability of the pressure strip slipping out.

[0016] Optionally, the mounting base has a plunger hole in the inner wall of the second mounting groove and a ball spring plunger is installed in the plunger hole. The pressure strip has an annular limiting hole at one end near the mounting base for the plunger ball of the ball spring plunger to engage.

[0017] By adopting the above technical solution, since the annular limiting hole on the pressure strip can cooperate with the ball-head spring plunger installed on the inner wall of the second mounting groove, the operator can lock the pressure strip in the second mounting groove after installation, reducing the probability of the pressure strip shaking.

[0018] Optionally, the mounting base is rotatably mounted with a snap-fit ​​claw and an elastic element connecting the snap-fit ​​claw on the inner wall of the second mounting groove. The other end of the elastic element is fixed to the inner wall of the second mounting groove. The pressure strip has a snap tooth at one end near the mounting base for snapping with the snap-fit ​​claw, and the tip of the snap tooth extends toward the top of the housing.

[0019] By adopting the above technical solution, since the inner wall of the second mounting groove is rotatably installed with a snap-fit ​​claw, the snap-fit ​​claw is connected to an elastic element, and the pressure strip is provided with snap-fit ​​teeth that snap with the snap-fit ​​claw. The tips of the snap-fit ​​teeth extend towards the top of the housing, so that when the pressure strip is inserted into the flange from top to bottom, the snap-fit ​​claw rotates towards the bottom of the housing, causing the elastic element to compress, so that the pressure strip can be installed smoothly. After the pressure strip is installed, the snap-fit ​​teeth and the snap-fit ​​claw snap together, so that the pressure strip cannot move upward, thereby making the connection strength between the flange and the pressure strip ideal.

[0020] Optionally, the housing is provided with a limiting plate on the top circumference for arranging the upper top cover.

[0021] By adopting the above technical solution, the limiting plate is set in the circumferential direction at the top of the shell, which makes it easy for the operator to position and place the top cover on the shell, and also makes it easy to disassemble the top cover and the shell.

[0022] Optionally, the top cover is provided with a snap-fit ​​groove that engages with the limiting plate.

[0023] By adopting the above technical solution, since the top cover is provided with a snap-fit ​​groove, the snap-fit ​​groove can cooperate with the limiting plate and snap-fit, so that the connection strength between the top cover and the shell is ideal, and the top cover and the shell are not easy to loosen, which helps to improve the overall stability of the shell.

[0024] In summary, this application includes at least one of the following beneficial technical effects:

[0025] 1. A refrigerator evaporator shell structure, by setting a flange at the joint of the shell and fitting a pressure strip on the flange, the connection strength at the joint of the two ends of the evaporator shell plate is enhanced, so that after the evaporator shell is connected to the main body of the refrigerator with expanding foam, the expanding foam will not seep into the shell, and the overall aesthetics of the evaporator shell are also improved.

[0026] 2. By setting an arrangement groove in the pressure strip for arranging the flange, the first inclined surface of the arrangement groove can cooperate with the extension of the flange, so that the connection strength between the pressure strip and the flange is ideal, which helps to improve the overall stability of the shell.

[0027] 3. By setting a plunger hole in the second mounting groove and installing a ball spring plunger in the plunger hole, and opening an annular limiting hole at one end of the pressure strip, the plunger ball of the ball spring plunger can be engaged in the annular limiting hole, which helps to reduce the probability of the pressure strip shaking. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the refrigerator evaporator shell structure in an embodiment of this application.

[0029] Figure 2This is a cross-sectional schematic diagram of the cooperation between the second mounting groove and the pressure strip in Embodiment 1 of this application.

[0030] Figure 3 This is a schematic diagram of the fit between the shell and the pressure strip in an explosive state in an embodiment of this application.

[0031] Figure 4 This is a cross-sectional schematic diagram of the fit between the pressure strip and the flange in an embodiment of this application.

[0032] Figure 5 This is a cross-sectional schematic diagram of the locking element in the embodiments of this application.

[0033] Figure 6 This is a schematic diagram of the fit between the top cover and the housing in an embodiment of this application.

[0034] Figure 7 This is a cross-sectional schematic diagram of the cooperation between the second mounting groove and the pressure strip in Embodiment 2 of this application.

[0035] Explanation of reference numerals in the attached drawings: 1. Mounting base; 11. First mounting groove; 12. Second mounting groove; 13. Plunger hole; 14. Ball spring plunger; 141. Plunger housing; 142. Plunger spring; 143. Plunger ball; 144. Socket hexagonal groove; 15. Engagement claw; 16. Elastic element; 2. Housing; 21. Flanged edge; 211. Fitting part; 212. Extension part; 22. Limiting plate; 3. Top cover; 31. Engagement groove; 4. Pressure strip; 41. Annular limiting hole; 42. Arrangement groove; 421. First inclined surface; 43. Guide inclined surface; 44. Locking element; 45. Locking tooth. Detailed Implementation

[0036] The following is in conjunction with the appendix Figure 1-7 This application will be described in further detail.

[0037] Example 1:

[0038] Reference Figure 1 The refrigerator evaporator housing structure includes a mounting base 1, a housing 2 mounted on the mounting base 1, an upper top cover 3 mounted on the housing 2, and a pressure strip 4 arranged on the outer wall of the housing 2. The top of the mounting base 1 is provided with a first mounting groove 11, and a second mounting groove 12 is opened on the inner wall of the first mounting groove 11. The bottom of the housing 2 can be arranged in the first mounting groove 11, and the bottom end of the pressure strip 4 abuts against the second mounting groove 12, which facilitates the operator to position and arrange the housing 2 and the pressure strip 4 on the mounting base 1.

[0039] refer to Figure 1 and Figure 2The pressure strip 4 is rectangular in shape, and an annular limiting hole 41 is provided at the bottom of the pressure strip 4. The mounting base 1 has a plunger hole 13 on the inner wall of the second mounting groove 12, and a ball spring plunger 14 for cooperating with the annular limiting hole 41 is provided in the plunger hole 13. In this embodiment, the axis of the plunger hole 13 is perpendicular to the length direction of the pressure strip 4. The ball spring plunger 14 includes a plunger housing 141, a plunger spring 142 installed in the plunger housing 141, and a plunger ball 143 installed in the plunger housing 141. Under the action of the plunger spring 142, the plunger ball 143 always tends to protrude from the plunger housing 141, so that the plunger ball 143 can be engaged in the annular limiting hole 41 of the pressure strip 4, thereby limiting the pressure strip 4 and making the pressure strip 4 less prone to shaking. In this embodiment, the ball spring plunger 14 is threaded into the plunger hole 13, and the tail end of the plunger housing 141 is provided with an internal hexagonal groove 144 to facilitate the installation of the ball spring plunger 14 into the plunger hole 13 using a tool.

[0040] refer to Figure 3 and Figure 4 The housing 2 is formed by stamping sheet metal and encloses a mounting frame for installing the evaporator. The joint of the housing 2 is folded outward to form a flange 21. The flange 21 includes a fitting portion 211 located at the joint of the housing 2 and an extension portion 212 located outside the fitting portion. The extension portions 212 are arranged inclined in directions away from each other. The pressure strip 4 is provided with an arrangement groove 42 that mates with the flange 21. The arrangement groove 42 has a first inclined surface 421 that mates with the extension portion 212. The operator can fit the pressure strip 4 into the flange 21 of the housing 2 from top to bottom. The pressure strip 4 fits against the housing 2 and has an ideal connection strength with the flange 21.

[0041] refer to Figure 2 and Figure 4 The bottom of the pressure strip 4 is provided with a guide slope 43, which is inclined upward towards the arrangement groove 42. The setting of the guide slope 43 enables the pressure strip 4 to play a guiding role when it is inserted into the flange 21 of the housing 2, so that the flange 21 can enter the arrangement groove 42, thereby making it easier for the operator to insert the pressure strip 4 into the flange 21 of the housing 2.

[0042] refer to Figure 5 The pressure strip 4 is provided with a locking member 44 on the inner wall of the arrangement groove 42. In this embodiment, the locking member 44 is a hemispherical protrusion. In this embodiment, the hemispherical protrusion has a certain elasticity. The hemispherical protrusion can elastically abut against the extension 212 of the flange 21, which increases the friction between the pressure strip 4 and the flange 21, making the connection strength between the flange 21 and the pressure strip 4 more ideal.

[0043] refer to Figure 6The outer peripheral wall of the top of the housing 2 is provided with a limiting plate 22 along the circumferential direction. The limiting plate 22 extends upward, and the top cover 3 is provided with a downward-opening snap-fit ​​groove 31 for snapping the limiting plate 22. The housing 2 and the top cover 3 are tightly connected by the limiting plate 22 and the snap-fit ​​groove 31, which makes it difficult for the top cover 3 and the housing 2 to loosen, and helps to improve the overall stability of the housing 2.

[0044] The implementation principle of the refrigerator evaporator shell structure in Embodiment 1 of this application is as follows: the joint of the evaporator shell 2 is folded outward to form a flange 21. By fitting a pressure strip 4 with an arrangement groove 42 onto the flange 21 of the shell 2, the arrangement groove 42 of the flange 21 can cooperate with the flange 21 to make the connection strength between the pressure strip 4 and the flange 21 ideal, thereby enhancing the overall strength and structural stability of the evaporator shell 2, and also improving the overall aesthetics of the evaporator shell 2.

[0045] Example 2:

[0046] The difference between this embodiment and Embodiment 1 lies in the fixing method of the pressure strip 4 and the second mounting groove 12. (Refer to...) Figure 7 The inner wall of the second mounting groove 12 is rotatably mounted with a locking claw 15 and an elastic element 16. In this embodiment, the elastic element is a spring, and the two ends of the spring are respectively fixedly connected to the locking claw 15 and the inner wall of the second mounting groove 12. A locking tooth 45 is provided at one end of the pressure strip 4 near the second mounting groove 12 for engaging with the locking claw 15. The tip of the locking tooth 45 extends towards the other end of the pressure strip 4, so that after the pressure strip 4 is installed, the locking tooth 45 and the locking claw 15 engage, preventing the pressure strip 4 from moving upwards, thus ensuring an ideal connection strength between the pressure strip 4 and the second mounting groove 12.

[0047] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A refrigerator evaporator shell structure, characterized in that, It includes a mounting base (1), a housing (2) mounted on the mounting base (1), an upper cover (3) mounted on the top of the housing (2), and a pressure strip (4) fitted to the housing (2). The housing (2) is formed by stamping sheet metal and encloses a mounting frame for installing the evaporator. The joint of the housing (2) is folded outward to form a flange (21), and the pressure strip (4) is fitted onto the flange (21).

2. The refrigerator evaporator shell structure according to claim 1, characterized in that, The flange (21) includes an extension (212) and a fitting part (211) connecting the extension (212) and the housing (2). The pressure strip (4) is provided with a groove (42) for arranging the flange (21). The extensions (212) of the two sets of flanges (21) are arranged at an angle away from each other. The groove (42) has a first inclined surface (421) that fits against the extension (212).

3. The refrigerator evaporator shell structure according to claim 2, characterized in that, The pressure strip (4) has a locking member (44) on the inner wall of the arrangement groove (42) for abutting the flange (21).

4. The refrigerator evaporator shell structure according to claim 2, characterized in that, The pressure strip (4) has a guide slope (43) at one end near the mounting base (1) for guiding the insertion into the flange (21).

5. The refrigerator evaporator shell structure according to claim 1, characterized in that, The mounting base (1) is provided with a first mounting groove (11) for the housing (2) to be arranged, and the mounting base (1) has a second mounting groove (12) on the inner wall of the first mounting groove (11) for one end of the pressure strip (4) to abut.

6. A refrigerator evaporator shell structure according to claim 5, characterized in that, The mounting base (1) has a plunger hole (13) on the inner wall of the second mounting groove (12) and a ball spring plunger (14) is installed in the plunger hole (13). The pressure strip (4) has an annular limiting hole (41) at one end near the mounting base (1) for the plunger ball (143) of the ball spring plunger (14) to engage.

7. A refrigerator evaporator shell structure according to claim 5, characterized in that, The mounting base (1) is rotatably mounted with a snap-fit ​​claw (15) and an elastic member (16) connecting the snap-fit ​​claw (15) on the inner wall of the second mounting groove (12). The other end of the elastic member (16) is fixed to the inner wall of the second mounting groove (12). The pressure strip (4) has a snap-fit ​​tooth (45) at one end near the mounting base (1) for snapping with the snap-fit ​​claw (15). The tip of the snap-fit ​​tooth (45) extends toward the top of the housing (2).

8. The refrigerator evaporator shell structure according to claim 1, characterized in that, The housing (2) is provided with a limiting plate (22) on the top circumference for the arrangement of the upper top cover (3).

9. A refrigerator evaporator shell structure according to claim 8, characterized in that, The top cover (3) is provided with a snap-fit ​​groove (31) that engages with the limiting plate (22).

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