Capacitor fixing device and component

Abstract

The utility model discloses a capacitor fixing device and a component. The fixing device of the capacitor comprises an outer sleeve and an inner sleeve. The outer sleeve is mounted on the component; the inner sleeve is slidably mounted in the outer sleeve in the vertical direction and can be fixed at different heights of the outer sleeve; wherein the capacitor is mounted in the inner sleeve; positive and negative pins / wires at the bottom of the capacitor extend out of the bottom of the inner sleeve; an opening corresponding to the bottom of the inner sleeve is formed in the outer side bottom of the outer sleeve. According to the utility model, for a capacitor adopting positive and negative pins or positive and negative leads, the installation of the capacitor is realized by using the same fixing device, especially after the installation height of the capacitor adopting the positive and negative leads is raised, the installation of the capacitor in the vertical direction is realized, and the installation space is saved compared with a transverse installation mode.

Description

Technical Field

[0001] The utility model relates to the technical field of fixing accessories, in particular to a fixing device and components of a capacitor. Background Art

[0002] With the rapid development of power electronics technology, servo motor capacitors are increasingly used in industrial control, new energy, automotive electronics and other fields. At the same time, the limitations of capacitor installation structures are becoming increasingly prominent.

[0003] In existing technical solutions, there are generally two ways to electrically connect capacitors to components. The first is to use positive and negative leads to be fixed to the component vertically with solder, as described in existing Chinese patent application No. 201810419314.3. The second is to use positive and negative leads to be connected to the component, as described in existing Chinese patent application No. 201910203429.3. The capacitor in the second installation method must be installed horizontally, which takes up more space. The two installation methods can only be installed using different auxiliary mounting accessories. Utility Model Content

[0004] The purpose of the utility model is to provide a fixing device and components for a capacitor, aiming to solve the limitation problem that different capacitors need to be installed using different auxiliary installation accessories, and the problem that the horizontal installation method takes up a large installation space.

[0005] In order to solve the above technical problems, the purpose of the present invention is achieved through the following technical solutions: providing a capacitor fixing device, comprising:

[0006] Outer sleeve, mounted on components;

[0007] The inner sleeve is slidably mounted inside the outer sleeve in a vertical direction and can be fixed at different heights of the outer sleeve;

[0008] The capacitor is installed inside the inner sleeve; the positive and negative pins / wires at the bottom of the capacitor extend out of the bottom of the inner sleeve; and the outer bottom of the outer sleeve is provided with an opening corresponding to the bottom of the inner sleeve.

[0009] Furthermore, the outer sleeve is provided with a limiting groove, which includes a vertical groove and a plurality of transverse grooves, the vertical groove is arranged downward along the top of the outer sleeve, one end of the plurality of transverse grooves is connected to the vertical groove, and the plurality of transverse grooves are distributed side by side along the vertical direction;

[0010] The outer side wall of the inner sleeve is provided with a sliding portion for sliding in the limiting groove.

[0011] Furthermore, one end of the transverse groove away from the vertical groove is bent downward to form a limiting latch.

[0012] Furthermore, the limiting grooves are provided in plurality and are distributed at intervals in the circumferential direction of the outer sleeve; correspondingly, the sliding part is provided in plurality and corresponds one-to-one to the plurality of limiting grooves.

[0013] Furthermore, the sliding portion includes two protrusions, and the distance between the two protrusions in the vertical direction is the same as the distance between two adjacent limiting bayonets in the vertical direction.

[0014] Furthermore, a threaded through hole is provided on the outer side wall of the outer sleeve, and a plurality of fixed blind holes distributed along the vertical direction are provided on the inner sleeve;

[0015] When the inner sleeve is at different heights of the outer sleeve, one of the plurality of fixing blind holes corresponds to the threaded through hole.

[0016] Furthermore, an annular platform extending radially outward is provided on the top of the inner sleeve, and a fixing ear for fixing to the annular platform is provided on the outer edge of the top of the capacitor.

[0017] Furthermore, the annular platform is provided with an inner recess for installing the fixing ear, the shape of the inner recess is the same as that of the fixing ear, and the fixing ear is fixedly connected to the inner recess by screws.

[0018] Furthermore, the capacitor fixing device further comprises:

[0019] A fixed bottom ring is fixedly mounted on the surface of the component, and a plurality of mounting holes are arranged on the fixed bottom ring along the circumferential direction;

[0020] The bottom of the outer sleeve is provided with an arc-shaped piece extending radially outward, and the arc-shaped piece is fixedly connected to a part of the mounting hole by screws.

[0021] An embodiment of the present invention further provides a component, which includes the fixing device for the capacitor as described above.

[0022] The beneficial effects of the embodiments of the present utility model are as follows: for capacitors using positive and negative pins or positive and negative leads, the same fixing device is used to achieve the installation of the capacitor. In particular, capacitors using positive and negative leads can be installed in a vertical direction by raising the installation height, which saves installation space compared to horizontal installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 This is a schematic diagram of the installation of two different capacitors from a first perspective provided in an embodiment of the present utility model.

[0025] Figure 2 A schematic diagram of the installation of two different capacitors from a second perspective provided in an embodiment of the present utility model.

[0026] Figure 3 A schematic diagram of the exploded structure of a capacitor fixing device provided in an embodiment of the utility model.

[0027] Description of the symbols in the figure:

[0028] 1. Outer sleeve; 11. Vertical slot; 12. Horizontal slot; 13. Positioning stop; 14. Threaded through hole; 15. Curved piece; 16. Opening;

[0029] 2. Inner sleeve; 21. Protrusion; 22. Fixed blind hole; 23. Inner recess;

[0030] 3. Fix the bottom ring;

[0031] 4. Capacitor; 41. Capacitor body; 42. Housing; 421. Fixing ear;

[0032] 5. Components. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] It will be understood that when used in this specification and the appended claims, the terms “comprises” and “comprising” indicate the presence of described features, integers, steps, operations, elements and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or groups thereof.

[0035] It should also be understood that the terms used in this utility model specification are only for the purpose of describing specific embodiments and are not intended to limit the utility model. As used in this utility model specification and the appended claims, the singular forms "a", "an" and "the" are intended to include plural forms unless the context clearly indicates otherwise.

[0036] It should be further understood that the term “and / or” used in the present specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0037] See also Figures 1 to 3 , an embodiment of the utility model provides a capacitor fixing device, comprising:

[0038] The outer sleeve 1 is mounted on the component 5;

[0039] The inner sleeve 2 is slidably mounted inside the outer sleeve 1 in the vertical direction and can be fixed at different heights of the outer sleeve 1;

[0040] The capacitor 4 is installed inside the inner sleeve 2; the positive and negative pins / wires at the bottom of the capacitor 4 extend out of the bottom of the inner sleeve 2; and the outer bottom of the outer sleeve 1 is provided with an opening 16 corresponding to the bottom of the inner sleeve 2.

[0041] In this embodiment, for the capacitor 4 using positive and negative pins or positive and negative leads, the same fixing device is used to achieve the installation of the capacitor 4. In particular, the capacitor 4 using positive and negative leads is installed in the vertical direction by raising the installation height, which saves installation space compared to the horizontal installation method.

[0042] In this embodiment, the outer sleeve 1 and the inner sleeve 2 are both hollow circular structures, the inner sleeve 2 can be embedded in the outer sleeve 1, and the capacitor 4 is fixed to the inner sleeve 2; the specific installation process can be: the outer sleeve 1, the inner sleeve 2 and the capacitor 4 are pre-installed to form an integral part, and then the whole is installed on the component 5; the specific installation process can also be: first install the outer sleeve 1 on the component 5, then embed the inner sleeve 2 in the outer sleeve 1, and then embed the capacitor 4 in the inner sleeve 2.

[0043] In this embodiment, the opening 16 is used to lead the positive and negative leads of the capacitor 4 with positive and negative leads to the outside of the outer sleeve 1.

[0044] In one embodiment, a limiting groove is provided on the outer sleeve 1, and the limiting groove includes a vertical groove 11 and a plurality of transverse grooves 12. The vertical groove 11 is arranged downward along the top of the outer sleeve 1, and one end of the plurality of transverse grooves 12 is connected to the vertical groove 11, and the plurality of transverse grooves 12 are distributed side by side in the vertical direction; the outer wall of the inner sleeve 2 is provided with a sliding portion for sliding in the limiting groove.

[0045] In this embodiment, the inner sleeve 2 is positioned vertically within the vertical slot 11 by a sliding portion. When the inner sleeve 2 reaches the corresponding transverse slot 12, the inner sleeve 2 is rotated, causing the sliding portion to move from the vertical slot 11 to the corresponding transverse slot 12. This constrains the inner sleeve 2 to a corresponding height, thereby constraining the capacitor 4 to a corresponding height. Thus, by constraining the sliding portion with transverse slots 12 at different heights, the capacitor 4 can be positioned at different installation heights.

[0046] In one embodiment, one end of the transverse groove 12 away from the vertical groove 11 is bent downward to form a limiting notch 13 .

[0047] In this embodiment, in order to ensure the installation stability of the capacitor 4 at different installation heights, a limit snap-in 13 is provided at one end of the transverse groove 12 away from the vertical groove 11. The sliding portion of the inner sleeve 2 moves in the transverse groove 12 to the limit snap-in 13 and is finally engaged, which can limit the axial rotation of the inner sleeve 2, that is, limit the axial rotation of the capacitor 4.

[0048] In one embodiment, a plurality of limiting grooves are provided and are spaced apart in the circumferential direction of the outer sleeve 1; correspondingly, a plurality of sliding portions are provided and correspond one to one to the plurality of limiting grooves.

[0049] In this embodiment, by providing multiple groups of limiting grooves and sliding parts for cooperation, the stability of the capacitor 4 can be further improved.

[0050] In one embodiment, the sliding portion includes two protrusions 21 , and the distance between the two protrusions 21 in the vertical direction is the same as the distance between two adjacent limiting bayonets 13 in the vertical direction.

[0051] In this embodiment, by providing more protrusions 21 to cooperate with the corresponding limiting slots 13 , the stability of the capacitor 4 can be further improved.

[0052] In a specific embodiment, three transverse grooves 12 can be provided in each limiting groove, and two protrusions 21 can be provided in each sliding portion. When the two protrusions 21 are limited to the two transverse grooves 12 located at the bottom among the three transverse grooves 12, the capacitor 4 can be placed at a lower position, which is suitable for installation of capacitors 4 with positive and negative pins, and can make the capacitor 4 relatively closer to the component 5 for welding. When the two protrusions 21 are limited to the two transverse grooves 12 located at the top among the three transverse grooves 12, the capacitor 4 can be placed at a higher position, which is suitable for installation of capacitors 4 with positive and negative leads, and can make the capacitor 4 elevated relative to the component 5, so that the positive and negative leads at the bottom of the capacitor 4 can be led out from the opening 16 and then connected to the component 5.

[0053] In one embodiment, a threaded through hole 14 is provided on the outer side wall of the outer sleeve 1, and a plurality of fixed blind holes 22 distributed along the vertical direction are provided on the inner sleeve 2; when the inner sleeve 2 is at different heights of the outer sleeve 1, one of the plurality of fixed blind holes 22 corresponds to the threaded through hole 14.

[0054] In this embodiment, in order to further improve the installation stability of the capacitor 4, after the protrusion 21 is engaged with the corresponding limit bayonet 13, it is connected to the threaded through hole 14 by a screw thread and inserted into the fixed blind hole 22, so as to ensure that the inner sleeve 2 is completely tightened relative to the outer sleeve 1, that is, the tightness of the capacitor 4 is ensured.

[0055] In one embodiment, an annular platform extending radially outward is provided on the top of the inner sleeve 2 , and a fixing ear 421 for fixing to the annular platform is provided on the outer edge of the top of the capacitor 4 .

[0056] In this embodiment, the capacitor 4 may include a capacitor body 41 and an outer shell 42. The outer shell 42 is in a sleeve shape and is fixedly wrapped around the outer periphery of the capacitor body 41. It is fixedly installed on the annular platform at the top of the inner sleeve 2 through the fixing ear 421 on the top outer edge of the outer shell 42, which can ensure that the capacitor 4 is stably installed in the inner sleeve 2.

[0057] In one embodiment, an inner recess 23 for installing the fixing ear 421 is provided on the annular platform. The shape of the inner recess 23 is the same as that of the fixing ear 421 , and the fixing ear 421 is fixedly connected to the inner recess 23 by screws.

[0058] In this embodiment, by providing an inner recess 23 having the same shape as the fixing ear 421 on the annular platform, the capacitor 4 can be accurately positioned and installed.

[0059] In this embodiment, there may be multiple inner recesses 23 and fixing ears 421 to improve installation stability.

[0060] In one embodiment, the fixing device of the capacitor 4 also includes a fixed bottom ring 3; the fixed bottom ring 3 is fixedly installed on the surface of the component 5, and a plurality of mounting holes are arranged on the fixed bottom ring 3 along the circumferential direction; the bottom of the outer sleeve 1 is provided with an arc-shaped piece 15 extending radially outward, and the arc-shaped piece 15 is fixedly connected to some mounting holes by screws.

[0061] In this embodiment, the fixed bottom ring 3 is fixedly installed on the surface of the component 5, and an annular groove can be set on the top of the fixed bottom ring 3. The arc-shaped piece 15 at the bottom of the outer sleeve 1 is installed in the annular groove and can be rotated in the annular groove to rotate the installation direction; specifically, a plurality of circumferentially distributed installation holes are set in the annular groove. After rotating the outer sleeve 1 and determining the direction, the arc-shaped piece 15 is fixedly connected to some of the installation holes by screws, so that the entire fixing device, that is, the capacitor 4, can be fixed.

[0062] The embodiment of the present invention further provides a component 5 , which includes the fixing device of the capacitor 4 as described above.

[0063] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and such modifications or substitutions are intended to be within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope of protection of the claims.

Claims

1. A capacitor fixing device, characterized in that: include: Outer sleeve, mounted on components; The inner sleeve is slidably mounted inside the outer sleeve in a vertical direction and can be fixed at different heights of the outer sleeve; The capacitor is installed inside the inner sleeve; the positive and negative pins / wires at the bottom of the capacitor extend out of the bottom of the inner sleeve; and the outer bottom of the outer sleeve is provided with an opening corresponding to the bottom of the inner sleeve.

2. The capacitor fixing device according to claim 1, characterized in that: The outer sleeve is provided with a limiting groove, which includes a vertical groove and a plurality of transverse grooves. The vertical groove is arranged downward along the top of the outer sleeve, and one end of the plurality of transverse grooves is connected to the vertical groove, and the plurality of transverse grooves are distributed side by side in the vertical direction; The outer side wall of the inner sleeve is provided with a sliding portion for sliding in the limiting groove.

3. The capacitor fixing device according to claim 2, characterized in that: One end of the transverse groove away from the vertical groove is bent downward to form a limiting latch.

4. The capacitor fixing device according to claim 3, characterized in that: There are multiple limiting grooves and they are spaced apart in the circumferential direction of the outer sleeve; correspondingly, there are multiple sliding parts and they correspond one to one to the multiple limiting grooves.

5. The capacitor fixing device according to claim 3, characterized in that: The sliding portion includes two protrusions, and the distance between the two protrusions in the vertical direction is the same as the distance between two adjacent limiting bayonets in the vertical direction.

6. The capacitor fixing device according to claim 2, characterized in that: A threaded through hole is provided on the outer side wall of the outer sleeve, and a plurality of fixed blind holes distributed in the vertical direction are provided on the inner sleeve; When the inner sleeve is at different heights of the outer sleeve, one of the plurality of fixing blind holes corresponds to the threaded through hole.

7. The capacitor fixing device according to claim 1, characterized in that: An annular platform extending radially outward is provided on the top of the inner sleeve, and a fixing ear for fixing on the annular platform is provided on the outer edge of the top of the capacitor.

8. The capacitor fixing device according to claim 7, characterized in that: The annular platform is provided with an inner recess for installing the fixing ear. The shape of the inner recess is the same as that of the fixing ear. The fixing ear is fixedly connected to the inner recess by screws.

9. The capacitor fixing device according to claim 1, characterized in that: Also includes: A fixed bottom ring is fixedly mounted on the surface of the component, and a plurality of mounting holes are arranged on the fixed bottom ring along the circumferential direction; The bottom of the outer sleeve is provided with an arc-shaped piece extending radially outward, and the arc-shaped piece is fixedly connected to a part of the mounting hole by screws.

10. A component, characterized in that: A capacitor fixing device comprising the capacitor fixing device according to any one of claims 1 to 9.

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