Two-in-one fixing rack and clothes drying machine with fixing rack

Abstract

The present invention discloses a two-in-one fixing frame, which is applied to the air duct of the fan and is used to fix the heating plate, comprising: a fixing frame, comprising four fixing plates forming a frame-shaped structure, at least one of the fixing plates is provided with a buckle, and the fixing plates corresponding to the left and right sides of the buckle are provided with strip holes extending to the edge of the fixing plate, so that the buckle has the elasticity of the up and down movement range, and the heating plate is installed in the fixing frame and tightly connected to the fixing plate by the elasticity of the buckle; an air duct frame, the frame opening of the fixing frame is connected to the frame opening of the air duct frame, the air duct frame and the fixing frame are integrally formed to form a fixing frame, and the other frame opening of the air duct frame is connected to the air duct. The present invention has a simple structure, can simplify the assembly process of the heating plate, and makes the installation of the heating plate more stable and efficient.

Description

Technical Field

[0001] The invention relates to a clothes drying machine in the field of furniture, and in particular to a clothes drying machine with a two-in-one fixing frame and a fixed fixing frame. Background Art

[0002] At present, a plastic PTC air duct and a centrifugal fan are installed inside the clothes drying machine. The air outlet of the centrifugal fan is connected to the PTC air duct, and a plastic fixing frame is installed at the other end of the PTC air duct. A ceramic PTC heating sheet is installed between the fixing frame and the PTC air duct, and the ceramic PTC heating sheet is screwed to the fixing frame. When the centrifugal fan is started, it can drive the heat generated by the ceramic PTC heating sheet to flow, so that the clothes drying machine can blow out hot air to achieve the effect of drying clothes.

[0003] However, the existing ceramic PTC heating sheet is fixed between the PTC air duct and the fixing frame, which has the following defects:

[0004] (1) During the installation of the heating element, the two parts need to be fully aligned before the heating element can be fixed and assembled. Without the assistance of other auxiliary equipment, the assembler needs to hold the aligned heating element, the fixing frame and the air duct with one hand and tighten the screws with the other hand, making the entire assembly process time-consuming and inefficient.

[0005] (2) The air duct and the fixing frame need to be made of different molds, which makes the cost of the two plastic molds high and is not conducive to the large-scale production of clothes drying machines;

[0006] (3) The connection between the ceramic heating element and the fixing frame depends entirely on screws, which has low stability. Summary of the invention

[0007] In order to overcome the deficiencies of the prior art, one of the purposes of the present invention is to provide a two-in-one fixing bracket, which can simplify the assembly process of the heating plate and make the installation of the heating plate more stable and efficient.

[0008] A second object of the present invention is to provide a clothes drying machine with a two-in-one fixing frame, and the two-in-one fixing frame is applied to the clothes drying machine to simplify the production process of the clothes drying machine and reduce the production cost.

[0009] One of the purposes of the present invention is achieved by the following technical solution:

[0010] A two-in-one fixing frame is used in the air duct of a fan to fix a heating plate, comprising:

[0011] A fixing frame, comprising four fixing plates forming a frame-shaped structure, at least one of the fixing plates is provided with an undercut, and the fixing plates corresponding to the left and right sides of the undercut are provided with strip holes extending toward the edge of the fixing plate, so that the undercut has elasticity of moving up and down, and the heating sheet is installed in the fixing frame by virtue of the elasticity of the undercut;

[0012] The undercut includes two protruding blocks extending upward from the fixed plate, the outer end of each protruding block bulges upward and then extends downward obliquely to form an outer clamping portion, the height of the outer clamping portion is greater than the height of the protruding block; the middle part of the fixed plate relative to the undercut is horizontally recessed downward, and a limit block is provided on the lower surface of the fixed plate at the recess;

[0013] A duct frame, a frame opening of the fixed frame is connected to a frame opening of the duct frame, the duct frame and the fixed frame are integrally formed to form a fixed frame, and another frame opening of the duct frame is connected to the duct.

[0014] Furthermore, at least two undercut pieces are provided on the fixing plate.

[0015] Furthermore, there are two counter-fasteners, which are respectively located on the left and right sides of the vertical center line of the fixed plate where the two counter-fasteners are located, one of the counter-fasteners is close to the vertical center line of the fixed plate, and the other counter-fastener is far away from the vertical center line of the fixed plate.

[0016] Furthermore, a side baffle is provided at the rear frame opening of the fixing frame, so that the sizes of the front and rear frame openings of the fixing frame are different.

[0017] Furthermore, the side baffle and the undercut piece close to the vertical center line of the fixing plate are located on the same side of the vertical center line of the fixing plate.

[0018] Furthermore, the undercut member includes two protruding blocks extending upward from the fixing plate, and the outer end portion of each protruding block bulges upward and then extends obliquely downward to form an outer locking portion.

[0019] Furthermore, the middle portion of the fixing plate relative to the undercut piece is horizontally recessed downward, and a limiting block is provided on the lower surface of the fixing plate at the recessed portion.

[0020] Furthermore, at least two screw holes are provided on the fixing plate at the recessed position, and the heating plate is connected to the fixing frame by bolts through the screw holes.

[0021] Furthermore, limit blocks are provided on the fixing plates located on the left and right sides of the fixing frame, and the inner ends of the limit blocks extend and protrude in the horizontal direction to form an inner locking portion, and the distance between the horizontal straight line where the inner locking portion is located and the horizontal straight line where the outer locking portion is located is equal to the thickness of the heating plate.

[0022] The second object of the present invention is achieved by adopting the following technical solution:

[0023] A clothes drying machine with a two-in-one fixing frame is characterized in that it includes the two-in-one fixing frame as described above, which is applied to the air duct of the centrifugal fan of the clothes drying machine to fix the ceramic heating plate.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] (1) A strip hole is provided on the fixing plate, and a buckle is provided on the fixing plate between two strip holes, so that the buckle has elasticity of moving up and down, so that the heating sheet can press the buckle into the fixing frame; then, the heating sheet is fixed in the fixing frame by the elastic recovery of the buckle, so that the assembly process of the heating sheet is simplified, and the elasticity of the buckle can ensure that the heating sheet is fixed in the fixing frame more stably;

[0026] (2) The fixing frame and the air duct frame in the two-in-one fixing frame are integrally formed, which reduces the cost of the mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of assembling the fixing frame and the heating sheet of the present invention;

[0028] Figure 2 It is a structural schematic diagram of the fixing frame of the present invention;

[0029] Figure 3 for Figure 2 A partial enlarged view of the middle A;

[0030] Figure 4 It is a front view structural schematic diagram of the fixing frame of the present invention;

[0031] In the figure: 1, fixing frame; 2, fixing plate; 3, undercut piece; 301, protruding block; 302, outer locking part; 4, strip hole; 5, limit block; 501, inner locking part; 6, screw hole; 7, thermostat; 8, air duct frame; 9, side baffle; 10, heating plate. DETAILED DESCRIPTION

[0032] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0033] A two-in-one fixing frame is applied to the air duct of a fan and is used to fix a heating plate 10, so that the heating plate 10 has high stability in the fixing frame and further improves assembly efficiency.

[0034] like Figure 1 As shown, the fixing frame includes an integrally formed fixing frame 1 and an air duct frame 8, that is, the fixing frame 1 and the air duct frame 8 are combined into one by using a mold through injection molding or other processes, which can reduce the cost of the fixing frame mold.

[0035] The fixed frame 1 includes four fixed plates 2 forming a frame-shaped structure, at least one of the fixed plates 2 is provided with a buckle 3, and the fixed plates 2 corresponding to the left and right sides of the buckle 3 are provided with strip holes 4 extending to the edge of the fixed plate 2, so that the buckle 3 has the elasticity of moving up and down, and the heating plate 10 is installed in the fixed frame 1 and tightly connected to the fixed plate 2 by means of the elasticity of the buckle 3.

[0036] In this embodiment, the heating sheet 10 is a rectangular structure, so the fixing frame 1 is set to a rectangular structure whose length, width and height are larger than the size of the heating sheet 10. The fixing plates 2 on the left and right sides of the fixing frame 1 can be provided with openings for leading out the pins of the heating sheet 10, so as to facilitate the connection of the heating sheet 10 with the driving circuit to realize the heating function.

[0037] At least two strip holes 4 perpendicular to the outer edge of the fixing plate 2 can be provided on the same fixing plate 2, and the strip holes 4 extend from the middle of the fixing plate 2 to the outer edge, and at least one inverted fastener 3 is provided on the fixing plate 2 between the adjacent strip holes 4. The adjacent strip holes 4 separate the inverted fastener 3 located between the adjacent strip holes 4 from the entire fixing plate 2. When the inverted fastener 3 located between the two strip holes 4 is subjected to external pressure, it can move up and down to a certain extent, so that the inverted fastener 3 made of plastic material has a certain elasticity, providing sufficient space for the assembly of the heating plate 10, and after the heating plate 10 is assembled, the inverted fastener 3 elastically recovers so that the inverted fastener 3 can press the heating plate 10, so that the heating plate 10 can be fixed in the fixing frame 1.

[0038] In order to further improve the stability of the heating sheet 10 in the fixed frame 1, in the present embodiment, the number of the inverted fasteners 3 is set to two, and the two inverted fasteners 3 can respectively support the left and right bottom ends of the heating sheet 10 to prevent the heating sheet 10 from tilting in the fixed frame 1; in addition, the number of the corresponding strip holes 4 is set to four, that is, strip holes 4 are opened on the fixed plate 2 on the left and right sides of each of the inverted fasteners 3, so as to facilitate the heating sheet 10 to be installed in the fixed frame 1.

[0039] In order to make the heating sheet 10 more firmly installed in the fixing frame 1, the two opposite fixing plates 2 of the fixing frame 1 may be provided with undercuts 3 and strip holes 4, so that the two opposite undercuts 3 can clamp the heating sheet 10 at the same time, thereby improving the stability of the heating sheet 10. In addition, the heating sheet 10 can also be fixed by bolts, and screw holes 6 can be opened on the two opposite fixing plates 2 of the fixing frame 1. After the heating sheet 10 is placed in the fixing frame 1, the bolts are passed through the screw holes 6 and connected to the heating sheet 10, and the fixing of the heating sheet 10 can be completed. In the present embodiment, a fastener 3 is provided on the fixing plate 2 located at the bottom of the fixing frame 1, and at least two screw holes 6 for fixing the heating plate 10 are provided on the other fixing plate 2 opposite to the fastener 3. After the heating plate 10 is assembled into the fixing frame 1 by means of the elasticity of the fastener 3, screws are passed through the screw holes 6 and connected to the top of the heating plate 10, thereby fixing the heating plate 10. Combining the two fixing methods can simplify the assembly process of the heating plate 10 and improve the firmness of the heating plate 10.

[0040] In this embodiment, if Figure 2 , Figure 3 As shown, each of the inverted fasteners 3 includes two protruding blocks 301 extending upward from the fixed plate 2, and the outer end portion of each of the protruding blocks 301 bulges upward and then extends obliquely downward to form an outer locking portion 302. The height of the outer locking portion 302 is greater than the height of the protruding block 301, so that when the heating sheet 10 enters from the front frame opening of the fixed frame 1, the inclined position of the outer locking portion 302 first contacts the heating sheet 10 to assist the heating sheet 10 to enter the fixed frame 1. When the heating sheet 10 squeezes the bulge of the outer locking portion 302, the inverted fastener 3 is pressed downward after being subjected to pressure, providing sufficient space for the heating sheet 10 to enter the fixed frame 1; after the heating sheet 10 completely enters the fixed frame 1, the bulge of the outer locking portion 302 can invert the heating sheet 10, so that the heating sheet 10 cannot slide out of the fixed frame 1, thereby limiting the heating sheet 10.

[0041] In order to allow the heating sheet 10 to be quickly positioned in the fixing frame 1, limit blocks 5 are provided on the inner side walls of the fixing plate 2 on the left and right sides of the fixing frame 1, and the inner end of the limit block 5 extends and protrudes in the horizontal direction to form an inner locking portion 501, and the distance between the horizontal straight line where the outer locking portion 302 is located and the horizontal straight line where the inner locking portion 501 is located is equal to the thickness of the heating sheet 10. The existence of the inner locking portion 501 and the outer locking portion 302 enables the heating sheet 10 to accurately and quickly enter the position where the heating sheet 10 belongs, while improving the positioning accuracy. At the same time, the front and rear ends of the heating sheet 10 can be fixed by the locking portion, thereby greatly improving the stability of the heating sheet 10.

[0042] In order to increase the air circulation around the heating sheet 10 and speed up the heat transfer rate, the middle part of the fixing plate 2 relative to the undercut 3 is horizontally recessed downward, and a limit block 5 is provided on the lower surface of the fixing plate 2 at the recess, and the screw hole 6 is located at the recess of the fixing plate 2. The distance between the horizontal straight line where the lower surface of the limit frame at the recess is located and the horizontal straight line where the upper surface of the protruding block 301 is located is equal to the height of the heating sheet 10, so that the fixing of the heating sheet 10 is more stable. In addition, there is a gap between the fixing plate 2 and the heating sheet 10 on both sides of the recess, so that air can flow through the gap to speed up the transfer of heat from the heating sheet 10.

[0043] A frame opening of an air duct frame 8 is connected to the rear frame opening of the fixed frame 1, and another frame opening of the air duct frame 8 is connected to the air duct; the air duct frame 8 is used to be connected to the air outlet of the fan. When the fan is started, the wind generated by the fan passes through the heating plate 10 to take away the heat of the heating plate 10, thereby achieving the effect of blowing out hot air.

[0044] The plastic fixing frame 1 and the air duct frame 8 are integrally formed to form the fixing frame, which reduces the production mold data of the fixing frame, thereby reducing the production cost. In addition, the bottom width of the fixing frame after integral molding is increased, which is equivalent to increasing the width of the fixing plate 2 where the undercut 3 is located, so that the root of the undercut 3, which is subjected to the greatest force, is not easy to break when the undercut 3 is pressed down.

[0045] Since the sizes of the fan and the fixing frame are different, a side baffle 9 is provided on the right side of the rear frame opening of the fixing frame, so that the air duct frame 8 is a right-angled trapezoidal structure, so that the sizes of the two frame openings of the air duct frame 8 are different, and the frame opening size of the air duct frame 8 connected to the air duct is smaller than the other frame opening size of the air duct frame 8, so that the connection between the air duct and the fixing frame 1 is smoother.

[0046] In order to prevent the side baffle 9 from occupying the space at the bottom of the fixing frame and affecting the supporting force of the undercut 3, in this embodiment, Figure 4 As shown, the left edge line C of the side baffle 9 is limited to the right side of the vertical center line B of the fixed frame 1, and the two inverted fasteners 3 are respectively located on both sides of the vertical center line B of the fixed frame 1. Compared with the inverted fastener 3 on the left, the inverted fastener 3 on the right is closer to the vertical center line B of the fixed frame 1, so that the inverted fasteners 3 on the left and right sides can have the same supporting force, thereby improving the stability of the fixing frame.

[0047] In addition, in order to obtain the temperature of the heating plate 10 in real time and control the temperature of the heating plate 10, the existing solution will directly install the thermostat 7 on any side of the heating plate 10, which will cause the thermostat 7 to be directly blown by the wind, causing the thermostat 7 to easily fall off, affecting the stability of the thermostat 7; in this example, a through hole is opened on the fixing plate 2 at the recessed position, and a thermostat 7 is installed at the through hole. The temperature detection end face of the thermostat 7 passes through the through hole and contacts the upper surface of the heating plate 10. The thermostat 7 is fixed on the side of the fixing frame, which can prevent the thermostat 7 from being blown by the oncoming wind, can accurately detect the temperature of the heating plate 10, and can also improve the temperature detection accuracy of the thermostat 7.

[0048] In this embodiment, at least two strip holes 4 are provided on the fixing plate 2, and a buckle 3 is provided on the fixing plate 2 between the two strip holes 4, so that the buckle 3 has the elasticity of moving up and down, which facilitates the assembly of the heating sheet 10 into the fixing frame 1, simplifies the assembly process of the heating sheet 10, and cooperates with the position limiting function of the limit block 5 to make the fixing of the heating sheet 10 in the fixing frame more stably, thereby improving the assembly efficiency of the heating sheet 10.

[0049] Embodiment 2

[0050] A clothes drying machine with a two-in-one fixing frame, wherein the two-in-one fixing frame of the first embodiment is applied to the air outlet of the centrifugal fan of the clothes drying machine to fix the ceramic heating plate 10 in the clothes drying machine.

[0051] The buckle 3 has an upward and downward elasticity, so that the heating plate 10 can press the buckle 3 to enter the fixed frame 1; the position of the heating plate 10 is fixed by the inner locking portion 501 of the limit block 5 and the outer locking portion 302 of the buckle 3, so that the fixing of the heating plate 10 in the fixed frame is more stable; and the assembly of the heating plate 10 can be completed by fastening the screws, which simplifies the process of assembling the internal structure of the clothes drying machine and realizes high efficiency in the production of the clothes drying machine; in addition, the fixed frame 1 and the air duct frame 8 are integrally formed to form the fixed frame, and can be produced at one time using one mold through injection molding or other processes, which can reduce the number of production molds, thereby reducing the cost of the production molds of the clothes drying machine and reducing the manufacturing cost of the clothes drying machine.

[0052] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A two-in-one fixing frame, used in the air duct of a fan, for fixing a heating plate, characterized in that: include: A fixing frame, comprising four fixing plates forming a frame-shaped structure, at least one of the fixing plates is provided with an undercut, and the fixing plates corresponding to the left and right sides of the undercut are provided with strip holes extending toward the edge of the fixing plate, so that the undercut has elasticity of moving up and down, and the heating sheet is installed in the fixing frame by virtue of the elasticity of the undercut; The undercut includes two protruding blocks extending upward from the fixed plate, the outer end of each protruding block bulges upward and then extends downward obliquely to form an outer clamping portion, the height of the outer clamping portion is greater than the height of the protruding block; the middle part of the fixed plate relative to the undercut is horizontally recessed downward, and a limit block is provided on the lower surface of the fixed plate at the recess; A duct frame, a frame opening of the fixed frame is connected to a frame opening of the duct frame, the duct frame and the fixed frame are integrally formed to form a fixed frame, and another frame opening of the duct frame is connected to the duct.

2. The two-in-one fixing bracket according to claim 1, characterized in that: At least two undercut pieces are arranged on the fixing plate.

3. The two-in-one fixing bracket according to claim 2, characterized in that: There are two inverted fasteners, which are respectively located on the left and right sides of the vertical center line of the fixed plate where the two inverted fasteners are located, one of the inverted fasteners is close to the vertical center line of the fixed plate, and the other inverted fastener is far away from the vertical center line of the fixed plate.

4. The two-in-one fixing bracket according to claim 1, characterized in that: A side baffle is provided at the rear frame opening of the fixing frame, so that the sizes of the front and rear frame openings of the fixing frame are different.

5. The two-in-one fixing bracket according to claim 4, characterized in that: The side baffle and the undercut piece close to the vertical center line of the fixing plate are located on the same side of the vertical center line of the fixing plate.

6. The two-in-one fixing bracket according to claim 5, characterized in that: At least two screw holes are arranged on the fixing plate at the recessed part, and the heating plate is connected to the fixing frame by bolts through the screw holes.

7. The two-in-one fixing bracket according to claim 1, characterized in that: Limit blocks are provided on the fixing plates on the left and right sides of the fixing frame, and the inner ends of the limit blocks extend and protrude horizontally to form inner locking parts, and the distance between the horizontal straight line where the inner locking part is located and the horizontal straight line where the outer locking part is located is equal to the thickness of the heating plate.

8. A clothes drying machine with a two-in-one fixing rack, characterized in that: It comprises a two-in-one fixing frame as described in any one of claims 1 to 7, which is applied to the air duct of the centrifugal fan of the clothes drying machine to fix the ceramic heating plate.

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