Fixing structure and electric control box with same

Abstract

The invention provides a fixing structure and an electric control box with the same, relates to the technical field of electric control boxes, and aims to solve the problem that an existing capacitor fixing structure cannot be compatible with capacitors with different diameters. The fixing structure comprises a capacitor fixing frame, the capacitor fixing frame is provided with a containing cavity and an installation opening used for installing a capacitor into the containing cavity, the containing cavity comprises a top wall and a side wall, the installation opening is opposite to the top wall, the top wall is provided with a terminal outlet, the side wall is provided with an elastic buckle extending into the containing cavity, and the elastic buckle comprises a high-position buckle and a low-position buckle. In the axial direction of the capacitor, a first gap is formed between the high-position buckle and the top wall, a second gap is formed between the low-position buckle and the top wall, and the first gap is smaller than the second gap. The capacitor fixing device can be compatible with capacitors with different diameters, so that the aim of fixing the capacitors with different diameters is fulfilled.

Description

Technical Field

[0001] The present invention relates to the technical field of electric control boxes, and in particular to a fixing structure and an electric control box having the same. Background Art

[0002] At present, due to different requirements of manufacturers and models, there are many diameters of compressor capacitors in household air conditioners, and the existing capacitor fixing structure is not compatible with capacitors of different diameters. In use, it is necessary to design a capacitor fixing component for each diameter of capacitor separately, resulting in a large number of parts and poor versatility. In addition, the existing capacitor fixing method requires the use of screws and capacitor clips to fix the capacitor, which not only complicates the installation process, but also leads to a further increase in the number of parts. Summary of the invention

[0003] The first object of the present invention is to provide a fixing structure to solve the technical problem that the existing capacitor fixing structure is not compatible with capacitors of different diameters.

[0004] The fixing structure provided by the present invention comprises a capacitor fixing frame, wherein the capacitor fixing frame has a accommodating cavity and an installation opening for loading the capacitor into the accommodating cavity, the accommodating cavity comprises a top wall and a side wall, the installation opening is opposite to the top wall, the top wall is provided with a terminal outlet, the side wall is provided with an elastic buckle extending into the accommodating cavity, the elastic buckle comprises a high-position buckle and a low-position buckle, wherein, along the axial direction of the capacitor, a first gap is formed between the high-position buckle and the top wall, and a second gap is formed between the low-position buckle and the top wall, and the first gap is smaller than the second gap.

[0005] By arranging an elastic buckle in the fixing structure, and arranging the elastic buckle in the form of a high-position buckle and a low-position buckle, a first gap and a second gap of different sizes are formed between the high-position buckle and the top wall of the accommodating cavity, and between the low-position buckle and the top wall of the accommodating cavity, respectively, that is, when viewed from the side of the capacitor fixing frame, the heights of the clamping end faces of the high-position buckle and the low-position buckle are different, and there is a clamping end face drop between the high-position buckle and the low-position buckle. For the convenience of description, the clamping end face of the high-position buckle is defined as the high-position end face, and the clamping end face of the low-position buckle is defined as the low-position end face.

[0006] When installing a small-diameter capacitor, the thickness of the protrusion is relatively small. When the small-diameter capacitor is installed into the accommodating cavity from the installation opening of the capacitor fixing frame, the protrusion will be connected between the high-position buckle and the top wall of the accommodating cavity, that is, the upper surface of the protrusion abuts against the inner surface of the top wall, and the lower surface of the protrusion abuts against the high-position end face of the high-position buckle, so as to achieve the installation of the small-diameter capacitor; when installing a large-diameter capacitor, the thickness of the protrusion is relatively large. When the large-diameter capacitor is installed into the accommodating cavity from the installation opening of the capacitor fixing frame, the protrusion will be connected between the low-position buckle and the top wall of the accommodating cavity, that is, the upper surface of the protrusion abuts against the inner surface of the top wall, and the lower surface of the protrusion abuts against the low-position end face of the low-position buckle. At the same time, the high-position buckle is lifted up by the large-diameter capacitor. In this way, the universal assembly of capacitors of different diameters is achieved.

[0007] The above-mentioned fixing structure forms a narrower first gap between the high-position buckle and the top wall, and a wider second gap between the low-position buckle and the top wall by arranging a high-position buckle and a low-position buckle with a difference in the end faces of the clamping position, so that when fixing capacitors of different diameters, the clamping protrusion with a smaller thickness corresponding to the small-diameter capacitor can be clamped into the first gap, and the clamping protrusion with a larger thickness corresponding to the large-diameter capacitor can be clamped into the second gap, and the height difference of the elastic deformation of the elastic buckle is compensated by the difference in the end faces of the clamping position. At this time, the high-position end face and the top wall form an end face support for the small-diameter capacitor, and the low-position end face and the top wall form an end face support for the large-diameter capacitor, so that neither the large-diameter capacitor nor the small-diameter capacitor can be axially separated from the capacitor fixing frame, while meeting the compatibility with the installation of capacitors of different diameters, and also ensuring the installation reliability.

[0008] In addition, this method of fixing the capacitor with the elastic buckle makes it possible to install the capacitor by simply pointing the plug-in terminal of the capacitor toward the installation opening and then pushing the capacitor into the accommodating cavity. In the process of the capacitor moving toward the accommodating cavity, the plug-in terminal will gradually extend from the terminal outlet, and the capacitor's clamping protrusion will also be clamped between the corresponding clamp and the top wall of the accommodating cavity. The installation process is simple, and no other components are needed to fix the capacitor, which effectively reduces the number of parts.

[0009] Furthermore, the side wall is provided with a notch, and the elastic buckle is installed in the notch. This arrangement allows the elastic buckle to be moved away from the accommodating cavity through the notch when the capacitor needs to be removed from the fixed structure, so as to release the buckling and fixing of the capacitor by the elastic buckle, so that the capacitor can be withdrawn from the installation opening, and the removal is completed, thereby improving the convenience of capacitor maintenance and replacement.

[0010] Furthermore, the elastic buckles are provided in multiple groups, and the multiple groups of elastic buckles are distributed at intervals along the circumference of the side wall. This arrangement enables the capacitor to be buckled and fixed to the capacitor fixing frame at multiple positions along its circumference after being assembled on the capacitor fixing frame, which, on the one hand, increases the connection reliability between the capacitor and the capacitor fixing frame.

[0011] Furthermore, in the direction from the installation opening to the top wall, the high-position buckle is provided with a first guide surface extending obliquely toward the center of the accommodating cavity; and / or, in the direction from the installation opening to the top wall, the low-position buckle is provided with a second guide surface extending obliquely toward the center of the accommodating cavity. The provision of the first guide surface and the second guide surface, on the one hand, can guide the small-diameter capacitor and the large-diameter capacitor during installation, thereby improving assembly efficiency; on the other hand, it also makes it easy for the high-position buckle and the low-position buckle to spring away from the accommodating cavity during assembly of the small-diameter capacitor and the large-diameter capacitor, thereby ensuring the reliability of the connection between the high-position buckle and the low-position buckle.

[0012] Furthermore, the angle between the first guide surface and the side wall is α1, wherein 5°≤α1≤35°; and / or the angle between the second guide surface and the side wall is α2, wherein 5°≤α2≤35°. This arrangement can not only ensure the guiding effect on the capacitor, but also avoid the situation where a large amount of space in the accommodating cavity is occupied due to the large inclination angle between the first guide surface and the second guide surface, thereby resulting in a larger volume of the capacitor fixing frame when meeting the installation requirements of capacitors of the same diameter.

[0013] Furthermore, along the axial direction of the capacitor, the size of the high-position buckle is L, wherein 10 mm ≤ L ≤ 25 mm. This length setting form of the high-position buckle enables the capacitor fixing frame finally obtained to meet the installation requirements of most capacitors.

[0014] Furthermore, the terminal outlet is in the shape of an elongated strip, the length direction of the terminal outlet is parallel to the arrangement direction of the multiple plug-in terminals of the capacitor, and the edges of the terminal outlet along its width direction are used to abut against the plug-in terminals in the lateral direction to limit the rotational freedom of the capacitor around its own axis. This setting can not only expose the plug-in terminals of the capacitor to meet the electrical plug-in requirements, but also limit the rotational freedom of the capacitor around its own axis, prevent the plug-in terminals from shifting, ensure the fixed position of the plug-in terminals, and thus improve the convenience of plug-in during wiring.

[0015] Furthermore, the cross section of the mounting opening is circular, the aperture of the mounting opening is D, and the diameter of the capacitor is d, wherein 1mm≤Dd≤2mm. This setting can not only avoid the wear of the capacitor and the inner surface of the side wall during the installation process due to the small difference between the aperture of the mounting opening and the diameter of the capacitor, but also play a certain radial limiting role on the capacitor, preventing the capacitor from swinging and shifting in the accommodating cavity due to the large difference between the aperture of the mounting opening and the diameter of the capacitor.

[0016] Furthermore, the side wall is a continuous wall surface arranged around the installation opening. This arrangement can ensure the structural stability of the capacitor holder, thereby reliably fixing the capacitor and preventing the capacitor from falling out of the accommodating cavity due to deformation of the capacitor holder.

[0017] Furthermore, the fixing structure also includes a main control fixing frame, and the main control fixing frame is connected to the side wall. This configuration enables the fixing structure to not only install and fix the capacitor, but also install and fix the main control board, enriching the function of the fixing structure, thereby making the electric control box more integrated.

[0018] The second object of the present invention is to provide an electric control box to solve the technical problem that the existing capacitor fixing structure is not compatible with capacitors of different diameters.

[0019] The electric control box provided by the present invention comprises a box cover, a base, a main control board, a capacitor and the above-mentioned fixing structure, wherein the base is provided with an escape opening, wherein the capacitor is mounted on the capacitor fixing frame, the main control board is mounted on the main control fixing frame, the box cover is docked with the base to form an installation cavity, the capacitor fixing frame and the main control board are both located in the installation cavity, and one end of the capacitor away from its plug terminal extends out from the escape opening.

[0020] By arranging the above-mentioned fixing structure in the electric control box, the electric control box accordingly has all the advantages of the above-mentioned fixing structure, which will not be described in detail here.

[0021] In addition, by arranging the capacitor fixing frame and the main control board in the installation cavity formed by the joint of the box cover and the base, the main control board can be protected and the adverse effects of dust and impurities on the main control board can be reduced.

[0022] Furthermore, the material of the box cover and the base are both metal. This arrangement can achieve electrical safety protection for the capacitor, thereby improving the electrical safety of the capacitor. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0024] Figure 1 A three-dimensional schematic diagram of a fixing structure provided by an embodiment of the present invention;

[0025] Figure 2 A schematic front view of a fixing structure provided in an embodiment of the present invention;

[0026] Figure 3 A schematic top view of a fixing structure provided in an embodiment of the present invention;

[0027] Figure 4 A partial cross-sectional side view of a fixing structure provided by an embodiment of the present invention;

[0028] Figure 5 A schematic diagram of a front view of a fixing structure and a capacitor provided in an embodiment of the present invention after assembly;

[0029] Figure 6 A schematic top view of a fixed structure and a capacitor provided in an embodiment of the present invention after assembly;

[0030] Figure 7 for Figure 6 A schematic diagram of a small-diameter capacitor mounted on a fixed structure provided by an embodiment of the present invention from a perspective of a middle AA cross section;

[0031] Figure 8 for Figure 6 A schematic diagram of a large-diameter capacitor mounted on a fixed structure provided by an embodiment of the present invention from a perspective of a middle AA cross section;

[0032] Fig. 9 A schematic diagram of the structure of an electric control box provided in an embodiment of the present invention;

[0033] Fig.10 A schematic front view of an electric control box provided in an embodiment of the present invention.

[0034] Description of reference numerals:

[0035] 010-box cover; 020-main control board; 030-fixed structure; 031-capacitor fixing frame; 032-main control fixing frame; 040-capacitor; 041-connector terminal; 042-protrusion; 043-main body; 040'-small diameter capacitor; 040"-large diameter capacitor; 050-base; 051-avoidance;

[0036] 100-accommodating cavity; 200-installation opening; 300-elastic buckle;

[0037] 110-top wall; 111-terminal outlet; 120-side wall; 121-notch;

[0038] 310 - high position buckle; 311 - first gap; 312 - first guide surface; 313 - high position end surface; 320 - low position buckle; 321 - second gap; 322 - second guide surface; 323 - low position end surface. DETAILED DESCRIPTION

[0039] Generally, a capacitor includes a main body and a protrusion, wherein the main body of the capacitor is roughly cylindrical in structure, and the protrusion is arranged around the main body of the capacitor. For capacitors of different diameters, the thickness of the protrusion is different. In other words, for capacitors of different diameters, the size of the protrusion along the axial direction of the capacitor main body is different, wherein the protrusion thickness corresponding to the large diameter capacitor is large, and the protrusion thickness corresponding to the small diameter capacitor is small.

[0040] At present, capacitors are mainly fixed in electric control boxes by capacitor clips. Specifically, the main body of the capacitor is pressed onto the electric control box by the capacitor clip, wherein one end of the capacitor clip is fixed to the electric control box, and the other end of the capacitor clip is fastened by screws. This capacitor fixing method can only fix capacitors of one diameter and is not compatible with capacitors of different diameters. Moreover, the fixing process of the capacitor also requires screwing the screws, which not only complicates the installation process, but also increases the number of parts.

[0041] In order to make the above-mentioned objects, features and advantages of the present invention more clearly understood, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0042] Figure 1 A three-dimensional schematic diagram of the fixing structure 030 provided in this embodiment, Figure 2 This is a schematic front view of the fixing structure 030 provided in this embodiment. Figure 3 FIG. 1 is a top view of the fixing structure 030 provided in this embodiment. Figures 1 to 3 As shown, this embodiment provides a fixing structure 030, including a capacitor fixing frame 031, specifically, the capacitor fixing frame 031 has a accommodating cavity 100 and an installation opening 200 for loading the capacitor 040 into the accommodating cavity 100, the accommodating cavity 100 includes a top wall 110 and a side wall 120, the installation opening 200 is opposite to the side wall 120, the top wall 110 is provided with a terminal outlet 111, and the side wall 120 is provided with an elastic buckle 300 extending into the accommodating cavity 100, and the elastic buckle 300 includes a high-position buckle 310 and a low-position buckle 320.

[0043] Figure 4 FIG. 1 is a partial cross-sectional side view of the fixing structure 030 provided in this embodiment. Figure 4 As shown, along the axial direction of the capacitor 040 , a first gap 311 is formed between the high-position buckle 310 and the top wall 110 , and a second gap 321 is formed between the low-position buckle 320 and the top wall 110 , wherein the first gap 311 is smaller than the second gap 321 .

[0044] Figure 5 This is a schematic front view of the fixing structure 030 and the capacitor 040 provided in this embodiment after being assembled. Figure 6 This is a top view of the fixing structure 030 and the capacitor 040 provided in this embodiment after assembly. Figure 5 and Figure 6 As shown, after the fixing structure 030 completes the fixing of the capacitor 040, the plug-in terminal 041 of the capacitor 040 extends out from the terminal outlet 111 opened on the top wall 110, the latching protrusion 042 of the capacitor 040 is latched with the elastic buckle 300, and a part of the main body 043 of the capacitor 040 is located inside the accommodating cavity 100, and the other part is located outside the accommodating cavity 100.

[0045] By arranging the elastic buckle 300 in the fixing structure 030, and arranging the elastic buckle 300 to have the form of a high-position buckle 310 and a low-position buckle 320, a first gap 311 and a second gap 321 of different sizes are formed between the high-position buckle 310 and the top wall 110 of the accommodating cavity 100, and between the low-position buckle 320 and the top wall 110 of the accommodating cavity 100, respectively, that is, when viewed from the side of the capacitor fixing frame 031, the heights of the clamping end faces of the high-position buckle 310 and the low-position buckle 320 are different, and there is a clamping end face drop between the high-position buckle 310 and the low-position buckle 320. For the convenience of description, the clamping end face of the high-position buckle 310 is defined as the high-position end face 313, and the clamping end face of the low-position buckle 320 is defined as the low-position end face 323.

[0046] Figure 7 for Figure 6 A schematic diagram of a small-diameter capacitor 040' assembled on the fixing structure 030 provided in this embodiment from the perspective of the AA cross section. Figure 7 As shown, when installing the small diameter capacitor 040', the thickness of its latch 042 is relatively small. When the small diameter capacitor 040' is installed into the accommodating cavity 100 from the mounting opening 200 of the capacitor fixing frame 031, the latch 042 will be latched between the high position buckle 310 and the top wall 110 of the accommodating cavity 100, that is, the upper surface of the latch 042 abuts against the inner surface of the top wall 110, and the lower surface of the latch 042 abuts against the high end surface 313 of the high position buckle 310, thereby realizing the installation of the small diameter capacitor 040'.

[0047] Figure 8 for Figure 6 A schematic diagram of a large-diameter capacitor 040" mounted on a fixed structure 030 provided in this embodiment from the perspective of the AA cross section. Figure 8 As shown, when installing the large diameter capacitor 040", the thickness of its latch 042 is relatively large. When the large diameter capacitor 040" is installed into the accommodating cavity 100 from the mounting port 200 of the capacitor fixing frame 031, the latch 042 will be latched between the low-position buckle 320 and the top wall 110 of the accommodating cavity 100, that is: the upper surface of the latch 042 abuts against the inner surface of the top wall 110, and the lower surface of the latch 042 abuts against the low end surface 323 of the low-position buckle 320. At the same time, the high-position buckle 310 is lifted up by the large diameter capacitor 040".

[0048] In this way, universal assembly of capacitors 040 of different diameters is achieved.

[0049] The fixing structure 030 is provided with a high-position buckle 310 and a low-position buckle 320 with a difference in the end surface of the clamping position, so that a narrow first gap 311 is formed between the high-position buckle 310 and the top wall 110, and a wide second gap 321 is formed between the low-position buckle 320 and the top wall 110, so that when fixing capacitors 040 of different diameters, the small-thickness clamping protrusion 042 corresponding to the small-diameter capacitor 040' can be clamped into the first gap 311, and the large-thickness clamping protrusion 042 corresponding to the large-diameter capacitor 040" can be clamped into the first gap 311. The second gap 321 is inserted into the second gap 321, and the height difference of the elastic deformation of the elastic buckle 300 is compensated by utilizing the end face drop of the locking position. At this time, the high end face 313 and the top wall 110 form an end face support for the small diameter capacitor 040', and the low end face 323 and the top wall 110 form an end face support for the large diameter capacitor 040". Therefore, no matter the large diameter capacitor 040" or the small diameter capacitor 040', it is impossible to axially separate from the capacitor fixing frame 031, which ensures the compatibility of the installation of capacitors 040 with different diameters and ensures the installation reliability.

[0050] In addition, this method of fixing the capacitor 040 with the elastic buckle 300 allows the capacitor 040 to be installed by only aligning the plug-in terminal 041 of the capacitor 040 toward the installation opening 200 and then pushing the capacitor 040 into the accommodating cavity 100. In the process of the capacitor 040 moving toward the accommodating cavity 100, the plug-in terminal 041 will gradually extend from the terminal outlet 111, and the clamping protrusion 042 of the capacitor 040 will also be clamped between the corresponding clamp and the top wall 110 of the accommodating cavity 100. The installation process is simple, and no other components are needed to fix the capacitor 040, which effectively reduces the number of parts.

[0051] Please continue to refer to Figures 1 to 3 In this embodiment, a notch 121 is formed in the side wall 120 , and the elastic buckle 300 is installed in the notch 121 .

[0052] By providing a notch 121 in the side wall 120 of the accommodating cavity 100, when the capacitor 040 needs to be removed from the fixing structure 030, the elastic buckle 300 can be moved away from the accommodating cavity 100 through the notch 121 to release the fixing of the capacitor 040 by the elastic buckle 300, so that the capacitor 040 can be withdrawn from the installation opening 200 and the removal is completed, so as to improve the convenience of maintenance and replacement of the capacitor 040. In addition, the provision of the notch 121 can also reduce the weight of the capacitor fixing frame 031, which is conducive to the lightweight design of the fixing structure 030.

[0053] Please continue to refer to Figures 1 to 4In this embodiment, the high-position buckle 310 and the low-position buckle 320 of each set of elastic buckles 300 are installed side by side in the notch 121, that is, the high-position buckle 310 and the low-position buckle 320 exist at the same time in the same notch 121. In other embodiments, the high-position buckle 310 and the low-position buckle 320 in a set of elastic buckles 300 may be arranged in different notches 121, which can also achieve the purpose of fixing the capacitor 040.

[0054] Please continue to refer to Figure 1 and Figure 3 In this embodiment, multiple groups of elastic buckles 300 are provided, and the multiple groups of elastic buckles 300 are spaced apart along the circumference of the side wall 120. In the assembled state of the capacitor 040 and the capacitor fixing frame 031, the circumference of the side wall 120 is also the circumference of the capacitor 040.

[0055] By arranging a plurality of sets of elastic buckles 300 spaced apart in the circumferential direction of the side wall 120, after the capacitor 040 is assembled on the capacitor fixing frame 031, the capacitor 040 can be buckled and fixed to the capacitor fixing frame 031 at a plurality of positions along its circumference. On the one hand, the connection reliability between the capacitor 040 and the capacitor fixing frame 031 is increased. On the other hand, the situation in which the capacitor 040 is axially separated from the capacitor fixing frame 031 due to the failure of the elastic buckle 300 at a certain place is avoided.

[0056] Please continue to refer to Figure 1 and Figure 3 Specifically, in this embodiment, four groups of elastic buckles 300 are provided, and the four groups of elastic buckles 300 are evenly distributed along the circumference of the side wall 120. This arrangement allows the capacitor 040 to be fixed all around, so that the capacitor 040 is reliably limited in the accommodating cavity 100, thereby improving the reliability of the fixation of the capacitor 040.

[0057] In other embodiments, the elastic buckles 300 may also be arranged into other groups, such as three groups, five groups, etc. This arrangement can also achieve effective fixation of the capacitor 040.

[0058] Please continue to refer to Figure 1 and Figure 3 In this embodiment, the number of the notches 121 is the same as the number of the groups of the elastic buckles 300 , which is also four. The four groups of elastic buckles 300 are respectively disposed in the plurality of notches 121 in a one-to-one correspondence.

[0059] It is understandable that when the number of groups of elastic buckles 300 changes, the number of notches 121 is also adjusted accordingly.

[0060] Please continue to refer to Figure 1 In this embodiment, the side wall 120 is a continuous wall surface arranged around the installation opening 200 .

[0061] This arrangement ensures the structural stability of the capacitor fixing frame 031 , thereby achieving reliable fixation of the capacitor 040 and preventing the capacitor 040 from falling out of the accommodating cavity 100 due to deformation of the capacitor fixing frame 031 .

[0062] Please continue to refer to Figure 4 In this embodiment, in the direction from the installation opening 200 to the top wall 110, the high-position buckle 310 is provided with a first guide surface 312 extending obliquely toward the center of the accommodating cavity 100, and the low-position buckle 320 is provided with a second guide surface 322 extending obliquely toward the center of the accommodating cavity 100.

[0063] The setting of the first guide surface 312 and the second guide surface 322 can, on the one hand, realize the guidance of the small-diameter capacitor 040' and the large-diameter capacitor 040" during the installation process to improve the assembly efficiency. On the other hand, it also makes it easy for the high-position buckle 310 and the low-position buckle 320 to pop open in the direction away from the accommodating cavity 100 during the assembly of the small-diameter capacitor 040' and the large-diameter capacitor 040", thereby ensuring the reliability of the clamping connection between the high-position buckle 310 and the low-position buckle 320.

[0064] It should be noted that, in other embodiments, the first guide surface 312 may be provided only on the high-position buckle 310, or the second guide surface 322 may be provided only on the low-position buckle 320, which can also guide the installation process of the small-diameter capacitor 040' and the large-diameter capacitor 040".

[0065] Please continue to refer to Figure 4 In this embodiment, both the high-position buckle 310 and the low-position buckle 320 are designed with an inclined middle section, so that a first guide surface 312 is obtained on the inner surface of the high-position buckle 310 and a second guide surface 322 is obtained on the inner surface of the low-position buckle 320. The inner surface of the high-position buckle 310 is the surface facing the accommodating cavity 100, and similarly, the inner surface of the low-position buckle 320 is also the surface facing the accommodating cavity 100.

[0066] Please continue to refer to Figure 4 In this embodiment, the included angle between the first guide surface 312 and the side wall 120 is α1, wherein 5°≤α1≤35°.

[0067] By limiting the angle between the first guide surface 312 and the side wall 120 to the above range, on the one hand, it is possible to avoid the situation where the high-position buckle 310 occupies a large amount of space in the accommodating cavity 100 due to the excessively large angle between the first guide surface 312 and the side wall 120, thereby resulting in a larger volume of the capacitor fixing frame 031 when installing capacitors 040 of the same diameter. On the other hand, it is also possible to avoid the situation where the guiding effect is poor due to the excessively small angle between the first guide surface 312 and the side wall 120.

[0068] Please continue to refer to Figure 4 In this embodiment, the included angle between the second guide surface 322 and the side wall 120 is α2, wherein 5°≤α2≤35°.

[0069] By limiting the angle between the second guide surface 322 and the side wall 120 to the above range, on the one hand, it is possible to avoid the situation where the low-position buckle 320 occupies a large amount of space in the accommodating cavity 100 due to the excessively large angle between the second guide surface 322 and the side wall 120, thereby resulting in a larger volume of the capacitor fixing frame 031 when installing capacitors 040 of the same diameter. On the other hand, it is also possible to avoid the situation where the guiding effect is poor due to the excessively small angle between the second guide surface 322 and the side wall 120.

[0070] It should be noted that the included angle α1 between the first guide surface 312 and the side wall 120 may be equal to the included angle α2 between the second guide surface 322 and the side wall 120 .

[0071] Please continue to refer to Figure 4 In this embodiment, along the axial direction of the capacitor 040, the size of the high-position buckle 310 is L, wherein 10 mm ≤ L ≤ 25 mm. That is, the length of the high-position buckle 310 is between 10 mm and 25 mm.

[0072] This length setting of the high-position buckle 310 enables the capacitor fixing frame 031 finally obtained to meet the installation requirements of most capacitors 040.

[0073] It should be noted that, in actual design, the lengths of the high-position buckle 310 and the low-position buckle 320 can be adjusted according to the specific specifications of the capacitor 040 to be compatible and assembled.

[0074] In this embodiment, the above-mentioned setting of the elastic buckle 300 can obtain an elastic deformation size of 2mm to 5mm, that is, the capacitor fixing frame 031 with the above-mentioned elastic buckle 300 can be used to assemble capacitors 040 with different diameters with a diameter difference of 4mm to 10mm. Figure 7 The diagram shows the smallest diameter capacitor that can be mounted on the capacitor holder 031. Figure 8 The diagram shows the capacitor with the largest diameter that can be mounted on the capacitor fixing frame 031 . The capacitor 040 with a size between the minimum diameter capacitor size and the maximum diameter capacitor size can also be fixed by using the capacitor fixing frame 031 .

[0075] Please continue to refer to Figure 3In this embodiment, the terminal outlet 111 is in the shape of an elongated strip. Specifically, the length direction of the terminal outlet 111 is parallel to the arrangement direction of the multiple plug-in terminals 041 of the capacitor 040. The edges of the terminal outlet 111 opposite to each other along its width direction are used to abut against the plug-in terminals 041 in the lateral direction to limit the rotational freedom of the capacitor 040 around its own axis.

[0076] By providing the terminal outlet 111, the plug-in terminal 041 of the capacitor 040 is exposed to meet the electrical connection requirements, and at the same time, the rotational freedom of the capacitor 040 around its own axis can be restricted to prevent the plug-in terminal 041 from shifting, thereby ensuring the fixed position of the plug-in terminal 041, thereby improving the convenience of connection during wiring.

[0077] Specifically, in this embodiment, the terminal outlet 111 is in the shape of a racetrack, that is, the terminal outlet 111 has a set of opposite straight edges and a set of opposite arc edges. The terminal outlet 111 abuts against the plug-in terminal 041 in the lateral direction by using the straight edges to limit the rotational freedom of the capacitor 040.

[0078] In other embodiments, the terminal outlet 111 may also be configured to be an ellipse or a rectangle.

[0079] In this embodiment, the capacitor fixing frame 031 is further provided with ribs surrounding the terminal outlet 111. By providing the ribs, the structure of the top wall 110 at the position of the terminal outlet 111 can be strengthened, thereby improving the structural strength of the capacitor fixing frame 031.

[0080] Please continue to refer to Figure 4 and Figure 5 In this embodiment, the cross section of the mounting opening 200 is circular, the aperture of the mounting opening 200 is D, and the diameter of the capacitor 040 is d, wherein 1mm≤Dd≤2mm. In other words, the aperture of the mounting opening 200 is 1mm to 2mm larger than the diameter of the capacitor 040.

[0081] Through the above arrangement, on the one hand, it is possible to avoid the capacitor 040 from being worn against the inner surface of the side wall 120 during the installation process due to the small difference between the aperture of the installation opening 200 and the diameter of the capacitor 040; on the other hand, it is also possible to play a certain radial limiting role on the capacitor 040 to prevent the capacitor 040 from swinging and shifting in the accommodating cavity 100 due to the large difference between the aperture of the installation opening 200 and the diameter of the capacitor 040.

[0082] Please continue to refer to Figures 1 to 3 In this embodiment, the fixing structure 030 may further include a main control fixing frame 032 , wherein the main control fixing frame 032 is connected to the side wall 120 .

[0083] By setting the main control fixing frame 032 in the fixing structure 030, the fixing structure 030 can not only realize the installation and fixation of the capacitor 040, but also realize the installation and fixation of the main control board 020, enriching the function of the fixing structure 030, thereby making the integration of the electric control box higher.

[0084] In this embodiment, the main control fixing frame 032 and the capacitor fixing frame 031 are an integrated structure. This arrangement can reduce the number of parts of the fixing structure 030, thereby saving assembly steps.

[0085] Fig. 9 This is a schematic diagram of the structure of the electric control box provided in this embodiment. Fig.10 This is a schematic diagram of the main view of the electric control box provided in this embodiment. Fig. 9 and Fig.10 As shown, this embodiment also provides an electric control box, including a box cover 010, a base 050, a main control board 020, a capacitor 040 and the above-mentioned fixed structure 030, the base 050 is provided with an avoidance opening 051, wherein the capacitor 040 is installed on the capacitor fixing frame 031, the main control board 020 is installed on the main control fixing frame 032, the box cover 010 and the base 050 are connected to form an installation cavity, the capacitor fixing frame 031 and the main control board 020 are both located in the installation cavity, and the end of the capacitor 040 away from its plug terminal 041 extends out from the avoidance opening 051.

[0086] By arranging the above-mentioned fixing structure 030 in the electric control box, accordingly, the electric control box has all the advantages of the above-mentioned fixing structure 030, which will not be described one by one here.

[0087] In addition, by arranging the capacitor fixing frame 031 and the main control board 020 in the installation cavity formed by the connection between the box cover 010 and the base 050, the main control board 020 can be protected and the adverse effects of dust and impurities on the main control board 020 can be reduced.

[0088] In this embodiment, the material of the box cover 010 and the base 050 are both metal. This arrangement can achieve electrical safety protection for the capacitor 040, thereby improving the electrical safety of the capacitor 040.

[0089] Although the present invention is disclosed as above, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the scope defined by the claims.

[0090] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the term "comprises" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprises a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0091] In the above embodiments, the descriptions of directions such as “upper”, “lower”, “inner”, “outer”, and “side” are all based on the drawings.

[0092] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A fixing structure, characterized in that: The invention comprises a capacitor fixing frame (031), the capacitor fixing frame (031) having a receiving cavity (100) and an installation opening (200) for installing a capacitor (040) into the receiving cavity (100), the receiving cavity (100) comprising a top wall (110) and a side wall (120), the installation opening (200) being opposite to the top wall (110), the top wall (110) being provided with a terminal outlet (111), and the side wall (120) being provided with a terminal extending into the receiving cavity. An elastic buckle (300) of a cavity (100), the elastic buckle (300) comprising a high-position buckle (310) and a low-position buckle (320), wherein, along the axial direction of the capacitor (040), a first gap (311) is formed between the high-position buckle (310) and the top wall (110), and a second gap (321) is formed between the low-position buckle (320) and the top wall (110), and the first gap (311) is smaller than the second gap (321).

2. The fixing structure according to claim 1, characterized in that: The side wall (120) is provided with a notch (121), and the elastic buckle (300) is installed in the notch (121).

3. The fixing structure according to claim 1, characterized in that: The elastic buckles (300) are provided in a plurality of groups, and the plurality of groups of the elastic buckles (300) are distributed at intervals along the circumference of the side wall (120).

4. The fixing structure according to claim 1, characterized in that: In a direction from the mounting opening (200) to the top wall (110), the high-position buckle (310) is provided with a first guide surface (312) extending obliquely toward the center of the accommodating cavity (100); and / or, in a direction from the mounting opening (200) to the top wall (110), the low-position buckle (320) is provided with a second guide surface (322) extending obliquely toward the center of the accommodating cavity (100).

5. The fixing structure according to claim 4, characterized in that: The included angle between the first guide surface (312) and the side wall (120) is α1, wherein 5°≤α1≤35°; and / or the included angle between the second guide surface (322) and the side wall (120) is α2, wherein 5°≤α2≤35°.

6. The fixing structure according to any one of claims 1 to 5, characterized in that: Along the axial direction of the capacitor (040), the size of the high-position buckle (310) is L, wherein 10 mm≤L≤25 mm.

7. The fixing structure according to any one of claims 1 to 5, characterized in that: The terminal outlet (111) is in the shape of an elongated strip, the length direction of the terminal outlet (111) is parallel to the arrangement direction of the plurality of plug-in terminals (041) of the capacitor (040), and the edges of the terminal outlet (111) opposite to each other along its width direction are used to abut against the plug-in terminals (041) in the lateral direction, so as to limit the rotational freedom of the capacitor (040) around its own axis.

8. The fixing structure according to any one of claims 1 to 5, characterized in that: The cross section of the installation opening (200) is circular, the aperture of the installation opening (200) is D, and the diameter of the capacitor (040) is d, wherein 1 mm≤Dd≤2 mm.

9. The fixing structure according to any one of claims 1 to 5, characterized in that: The side wall (120) is a continuous wall surface arranged around the installation opening (200).

10. The fixing structure according to any one of claims 1 to 5, characterized in that: The fixing structure further comprises a main control fixing frame (032), and the main control fixing frame (032) is connected to the side wall (120).

11. An electric control box, characterized in that: The invention comprises a box cover (010), a base (050), a main control board (020), a capacitor (040) and a fixing structure according to any one of claims 1 to 10, wherein the base (050) is provided with an escape opening (051), wherein the capacitor (040) is mounted on the capacitor fixing frame (031), and the main control board (020) is mounted on the main control fixing frame (032), the box cover (010) and the base (050) are docked to form an installation cavity, the capacitor fixing frame (031) and the main control board (020) are both located in the installation cavity, and an end of the capacitor (040) that is away from its plug terminal (041) extends out from the escape opening (051).

12. The electric control box according to claim 11, characterized in that: The box cover (010) and the base (050) are both made of metal.

Images