Capacitor shell resistant to high temperature and humidity

Abstract

The invention discloses a high temperature and humidity resistant capacitor shell which comprises a protective shell, a heat dissipation piece and a support, and a first connecting end, a second connecting end, a third connecting end and a fourth connecting end are arranged on the side wall of the outer side of a support base in a staggered mode. Capacitors installed in the device can be integrally installed and fixed on a large scale through the four connecting ends, the first connecting end, the second connecting end, the third connecting end and the fourth connecting end are all provided with threaded holes, bolts can be matched with the threaded holes in the four connecting ends to fixedly connect adjacent supports, air channels can be arranged below the supports, and the air channels are arranged below the supports. The through groove formed in the annular base enables cold air to directly blow the heat dissipation shell to take away heat of the capacitor, meanwhile, heat on the heat dissipation fins can also be taken away, continuous accumulation of heat during large-scale series-parallel connection of the capacitor is prevented, the capacitor is prevented from continuously working in a high-temperature environment, and the service life of the capacitor is prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of capacitors, and in particular to a capacitor casing resistant to high temperature and humidity. Background Art

[0002] A capacitor is composed of two metal electrodes with a layer of insulating dielectric sandwiched between them. When voltage is applied between the two metal electrodes, charge will be stored on the electrodes. Therefore, the capacitor is an energy storage element. Any two conductors that are insulated from each other and very close to each other form a capacitor.

[0003] The Chinese patent with the existing authorization announcement number CN216818100U discloses a high temperature and humidity resistant capacitor housing, including a shell and a capacitor body, the capacitor body is arranged inside the shell, a plurality of groups of openings are arranged on both sides of the shell, heat dissipation plugs are arranged in the openings, the upper ends of the heat dissipation plugs are arranged with grooves, the grooves are arranged with liquid cooling pipes, a liquid cooling device is arranged on one side of the shell, the liquid cooling pipe is connected to the liquid cooling device, a connecting hole is arranged on the upper end of the shell, the connecting hole passes through the heat dissipation plug and extends to the inside of the shell, a connecting plate is inserted in the connecting hole, and a desiccant is arranged in the connecting plate. By arranging heat dissipation plugs on both sides of the shell, the effective heat dissipation area of ​​the capacitor is increased. When the temperature is too high, the temperature control switch turns on the liquid cooling device to circulate liquid cooling on the heat dissipation plug, thereby driving down the temperature of the capacitor and preventing the use of the capacitor from being affected by excessive temperature; by arranging connecting holes and connecting plates on the shell, and arranging desiccant in the connecting plate, the capacitor is prevented from being damp.

[0004] The disadvantage of the above-mentioned prior art solution is that a liquid cooling device is provided on one side of the shell, and when the capacitors are used in series and parallel on a large scale, heat will continue to accumulate, and the liquid cooling device will further occupy the space between the capacitors, which is not conducive to the heat dissipation of the capacitors. Summary of the invention

[0005] The purpose of the present invention is to provide a capacitor housing that is resistant to high temperature and humidity, so as to solve the technical problem in the prior art that a liquid cooling device is provided on one side of the housing, heat will continue to accumulate when the capacitors are used in series and parallel on a large scale, and the liquid cooling device will further occupy the space between the capacitors, which is not conducive to the heat dissipation of the capacitors.

[0006] The technical problem to be solved by the present invention can be achieved by the following technical solutions:

[0007] A high temperature and humidity resistant capacitor housing, comprising:

[0008] The protective housing comprises a heat dissipation housing, a mounting chamber is provided in the heat dissipation housing, a mounting ring is provided at one end of the heat dissipation housing, a rubber piece is clamped in the mounting ring, an annular base is fixedly connected to the other end of the heat dissipation housing, a cover plate is provided on the annular base, a lap plate is fixedly connected to the cover plate, a clamping arc plate 1 is symmetrically provided on both sides of the heat dissipation housing, the clamping arc plate 1 is fixedly connected to the annular base, and a gap between the heat dissipation housing and the clamping arc plate 1 constitutes a clamping arc groove;

[0009] The heat sink comprises a second clamping arc plate and a mounting arc plate which are arranged in parallel, one end of the second clamping arc plate and the mounting arc plate along the length direction is fixedly connected with a connecting arc plate, the outer arc surface of the mounting arc plate is evenly distributed with heat dissipation fins, the second clamping arc plate is clamped in the clamping arc groove, and the second clamping arc plate is in contact with the heat dissipation housing;

[0010] The bracket comprises a bracket seat, a lap groove is provided on the bracket seat, and a lap plate is arranged in the lap groove.

[0011] As a further solution of the present invention, the rubber member comprises a rubber ring, a rubber sheet is arranged inside the rubber ring, an outer end of the rubber sheet is fixedly connected to the inner side wall of the rubber ring, and a rubber convex is fixedly connected to the outer side wall of the rubber ring.

[0012] As a further solution of the present invention: a snap ring groove is provided on the inner side wall of the mounting ring, and the rubber protrusion is snap-connected with the snap ring groove.

[0013] As a further solution of the present invention: a through groove is formed on the annular base, a threaded hole is formed on the annular base, and a threaded through hole is formed on the cover plate.

[0014] As a further solution of the present invention: bolts are threadedly connected on the annular base and the cover plate, and the bolts pass through the threaded through holes on the cover plate and are threadedly connected with the threaded holes on the annular base.

[0015] As a further solution of the present invention: a bayonet is provided at the upper end of the first snap-fit ​​arc plate, a snap protrusion is fixedly connected to the connecting arc plate, the snap protrusion is arranged between the second snap-fit ​​arc plate and the installation arc plate, and the snap protrusion is snap-fitted into the bayonet.

[0016] As a further solution of the present invention: connection end one, connection end two, connection end three and connection end four are evenly distributed in a ring on the outer side wall of the bracket seat, and threaded holes are opened through connection end one, connection end two, connection end three and connection end four.

[0017] As a further solution of the present invention: connection end one, connection end two, connection end three and connection end four are staggered on the outer side wall of the bracket seat, and the upper end surfaces of connection end one and connection end two are flush with the lower end surfaces of connection end three and connection end four.

[0018] Beneficial effects of the present invention:

[0019] 1. The present invention arranges the connection terminal 1, the connection terminal 2, the connection terminal 3 and the connection terminal 4 on the outer side wall of the bracket seat in a staggered manner. When the capacitors are used in large-scale series and parallel connection, it is convenient to install and fix the capacitors installed in the device in a large-scale integrated manner through the four connection terminals. The connection terminal 1, the connection terminal 2, the connection terminal 3 and the connection terminal 4 are all provided with threaded holes, and the adjacent brackets can be fixedly connected by bolts in conjunction with the threaded holes on the four connection terminals. An air duct can be arranged under the bracket, and the through groove provided on the annular base allows cold air to blow directly to the heat dissipation housing to take away the heat of the capacitor, and also to take away the heat on the heat dissipation fins, thereby preventing the continuous accumulation of heat when the capacitors are used in large-scale series and parallel connection, avoiding the capacitors from continuously working in a high temperature environment, and extending the service life of the capacitors.

[0020] 2. When the present invention is in use, the cover plate is removed from the annular base, a hole is opened on the rubber sheet of the rubber member according to the wiring position of the capacitor, the capacitor is set in the installation chamber, the wiring terminal of the capacitor is led out from the opening on the rubber sheet, and the cover plate is installed on the annular base to install the capacitor in a closed manner, which can ensure that the capacitor is not corroded by water vapor in a humid environment. After replacing capacitors of different models, if the wiring position of the capacitor is different, it is only necessary to replace a new rubber member and re-open the hole to adapt the capacitor for installation. The heat dissipation shell is in close contact with the outer side of the capacitor. If the size of the capacitor and the heat dissipation shell do not match, an arc-shaped copper sheet can be filled between the outer side of the capacitor and the inner wall of the heat dissipation shell to ensure rapid heat transfer. At the same time, the heat dissipation member can assist in heat dissipation and further improve the heat dissipation efficiency. The heat dissipation fins of the heat dissipation member are easily oxidized after working for a long time, thereby affecting the heat dissipation effect. By clamping the heat dissipation member on the protective shell, it is convenient to replace the heat dissipation member as a whole. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below in conjunction with the accompanying drawings.

[0022] Figure 1 The three-dimensional structure of the present invention is shown in FIG. Figure 1 ;

[0023] Figure 2 The three-dimensional structure of the present invention is shown in FIG. Figure 2 ;

[0024] Figure 3 The three-dimensional structure of the protective shell of the present invention is shown in FIG. Figure 1 ;

[0025] Figure 4 The three-dimensional structure of the protective shell of the present invention is shown in FIG. Figure 2 ;

[0026] Figure 5 is a schematic side cross-sectional view of the protective housing of the present invention;

[0027] Figure 6 The present invention Figure 5 The enlarged structural diagram at A in the middle;

[0028] Figure 7 It is a schematic diagram of the top view of the protective housing of the present invention;

[0029] Figure 8 It is a schematic diagram of the three-dimensional structure of the heat sink of the present invention;

[0030] Fig. 9 This is a diagram showing the connection relationship between the second arc-shaped plate, the connecting arc-shaped plate and the convex-shaped plate of the present invention;

[0031] Fig.10 The three-dimensional structure of the support of the present invention is shown in FIG. Figure 1 ;

[0032] Fig.11 The three-dimensional structure of the support of the present invention is shown in FIG. Figure 2 .

[0033] In the figure: 1. protective shell; 11. heat dissipation shell; 12. installation chamber; 13. snap-fit ​​arc plate 1; 14. bayonet; 15. installation ring; 16. snap-fit ​​ring groove; 17. rubber part; 171. rubber ring; 172. rubber convex; 173. rubber sheet; 18. annular base; 19. through groove; 110. cover plate; 111. lap plate; 112. bolt; 113. snap-fit ​​arc groove; 2. heat dissipation part; 21. snap-fit ​​arc plate 2; 22. connecting arc plate; 23. snap convex; 24. installing arc plate; 25. heat dissipation fin; 3. bracket; 31. bracket seat; 32. lap groove; 33. connection end 1; 34. connection end 2; 35. connection end 3; 36. connection end 4. DETAILED DESCRIPTION

[0034] 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 described embodiments are only 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 creative work are within the scope of protection of the present invention.

[0035] like Figure 1-Figure 11As shown, a high temperature and humidity resistant capacitor housing includes a protective housing 1, a heat sink 2 and a bracket 3. The protective housing 1 includes a heat sink housing 11. The heat sink housing 11 is provided with an installation chamber 12. A mounting ring 15 is provided at one end of the heat sink housing 11. A rubber member 17 is clamped in the mounting ring 15. An annular base 18 is fixedly connected to the other end of the heat sink housing 11. A cover plate 110 is provided on the annular base 18. A lap plate 111 is fixedly connected to the cover plate 110. A clamping arc plate 13 is symmetrically provided on both sides of the heat sink housing 11. The clamping arc plate 13 is fixedly connected to the annular base 18. The heat sink housing The gap between 11 and the snap-in arc plate 1 13 constitutes a snap-in arc groove 113, the heat sink 2 includes a snap-in arc plate 21 and a mounting arc plate 24 arranged in parallel, one end of the snap-in arc plate 21 and the mounting arc plate 24 along the length direction are fixedly connected with a connecting arc plate 22, and the outer arc surface of the mounting arc plate 24 is evenly distributed with heat dissipation fins 25, the snap-in arc plate 21 is snapped into the snap-in arc groove 113, and the snap-in arc plate 21 is in contact with the heat dissipation housing 11, the bracket 3 includes a bracket seat 31, the bracket seat 31 is provided with a lap groove 32, and the lap plate 111 is arranged in the lap groove 32.

[0036] In some specific embodiments, the heat dissipation housing 11 is made of metal copper.

[0037] In some specific embodiments, the rubber part 17 includes a rubber ring 171, a rubber sheet 173 is arranged on the inner side of the rubber ring 171, the outer end of the rubber sheet 173 is fixedly connected to the inner side wall of the rubber ring 171, a rubber protrusion 172 is fixedly connected to the outer side wall of the rubber ring 171, a snap-fit ​​ring groove 16 is opened on the inner side wall of the mounting ring 15, and the rubber protrusion 172 is snap-fitted to the snap-fit ​​ring groove 16.

[0038] In some specific embodiments, a through groove 19 is opened through the annular base 18, a threaded hole is opened on the annular base 18, a threaded through hole is opened through the cover plate 110, and bolts 112 are threadedly connected on the annular base 18 and the cover plate 110. The bolts 112 pass through the threaded through holes on the cover plate 110 and are threadedly connected to the threaded holes on the annular base 18. By providing the bolts 112, the cover plate 110 can be easily removed or installed on the annular base 18.

[0039] In some specific embodiments, a bayonet 14 is provided at the upper end of the snap-in arc plate 13, and a snap-in protrusion 23 is fixedly connected to the connecting arc plate 22. The snap-in protrusion 23 is arranged between the snap-in arc plate 21 and the installing arc plate 24. The snap-in protrusion 23 is snapped into the bayonet 14. Through the snap-in connection between the snap-in protrusion 23 and the bayonet 14, the heat sink 2 can be firmly installed on the protective housing 1, and the heat sink 2 can also be easily disassembled and replaced.

[0040] The outer side wall of the bracket seat 31 is evenly distributed with a connection end 1 33, a connection end 2 34, a connection end 35 and a connection end 4 36 in an annular manner. The connection end 1 33, the connection end 2 34, the connection end 35 and the connection end 4 36 are all penetrated with threaded holes. The connection end 1 33, the connection end 2 34, the connection end 35 and the connection end 4 36 are staggered on the outer side wall of the bracket seat 31. The upper end faces of the connection end 1 33 and the connection end 2 34 are flush with the lower end faces of the connection end 35 and the connection end 4 36. By staggering the connection end 1 33, the connection end 2 34, the connection end 35 and the connection end 4 36 on the outer side wall of the bracket seat 31, the capacitor is large in size. When the modules are used in series and parallel, it is convenient to install and fix the capacitors installed in the device on a large scale through the four connection ends. Threaded holes are provided on the connection end 1 33, the connection end 2 34, the connection end 35 and the connection end 4 36. The adjacent brackets 3 can be fixedly connected by bolts in conjunction with the threaded holes on the four connection ends. An air duct can be arranged under the bracket 3. The through groove 19 provided on the annular base 18 allows cold air to blow directly to the heat dissipation housing 11 to take away the heat of the capacitor, and also to take away the heat on the heat dissipation fins 25, thereby preventing the continuous accumulation of heat when the capacitors are used in series and parallel on a large scale, avoiding the capacitors from continuously working in a high temperature environment, and extending the service life of the capacitors.

[0041] In order to facilitate the understanding of the embodiments of this solution by those skilled in the art, the working principle of this solution is briefly described in combination with specific application scenarios:

[0042] When in use, the cover plate 110 is removed from the annular base 18, a hole is made on the rubber sheet 173 of the rubber member 17 according to the wiring position of the capacitor, the capacitor is set in the installation chamber 12, the wiring terminal of the capacitor is led out from the hole on the rubber sheet 173, and then the cover plate 110 is installed on the annular base 18 to install the capacitor in a closed manner, which can ensure that the capacitor is not corroded by water vapor in a humid environment. After replacing capacitors of different models, if the wiring position of the capacitor is different, only a new rubber member 17 needs to be replaced and the hole can be re-made to adapt and install the capacitor. The heat dissipation shell 11 is in close contact with the outer side of the capacitor. If the size of the capacitor and the heat dissipation shell 11 do not match, an arc-shaped copper sheet can be filled between the outer side of the capacitor and the inner wall of the heat dissipation shell 11 to ensure rapid heat transfer. At the same time, the heat dissipation element 2 can assist in heat dissipation and further improve the heat dissipation efficiency. The heat dissipation fins 25 of the heat dissipation element 2 are easily oxidized after long-term work, thereby affecting the heat dissipation effect. By clamping the heat dissipation element 2 on the protective shell 1, it is convenient to replace the heat dissipation element 2 as a whole.

[0043] By staggering the connection terminals 1 33, 2 34, 35 and 36 on the outer side wall of the bracket seat 31, when the capacitors are used in large-scale series and parallel connection, it is convenient to install and fix the capacitors installed in the device on a large scale through the four connection terminals. Threaded holes are provided on the connection terminals 1 33, 2 34, 35 and 36, and the adjacent brackets 3 can be fixedly connected by bolts in conjunction with the threaded holes on the four connection terminals. An air duct can be provided under the bracket 3. The through groove 19 provided on the annular base 18 allows cold air to blow directly to the heat dissipation housing 11 to take away the heat of the capacitor, and also to take away the heat on the heat dissipation fins 25, thereby preventing the continuous accumulation of heat when the capacitors are used in large-scale series and parallel connection, avoiding the capacitors from continuously working in a high temperature environment, and extending the service life of the capacitors.

[0044] Several embodiments of the present invention are described in detail above, but the embodiments of the present invention are not limited thereto and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A high temperature and humidity resistant capacitor housing, characterized in that: include: The protective housing (1) comprises a heat dissipation housing (11), wherein a mounting chamber (12) is provided in the heat dissipation housing (11), a mounting ring (15) is provided at one end of the heat dissipation housing (11), a rubber member (17) is clamped in the mounting ring (15), an annular base (18) is fixedly connected to the other end of the heat dissipation housing (11), a cover plate (110) is provided on the annular base (18), a lap plate (111) is fixedly connected to the cover plate (110), a clamping arc plate (13) is symmetrically provided on both sides of the heat dissipation housing (11), the clamping arc plate (13) is fixedly connected to the annular base (18), and a gap between the heat dissipation housing (11) and the clamping arc plate (13) forms a clamping arc groove (113); The heat sink (2) comprises a second clamping arc plate (21) and a mounting arc plate (24) arranged in parallel, a connecting arc plate (22) being fixedly connected to one end along the length direction of the second clamping arc plate (21) and the mounting arc plate (24), heat sink fins (25) being evenly distributed on the outer arc surface of the mounting arc plate (24), the second clamping arc plate (21) being clamped in the clamping arc groove (113), and the second clamping arc plate (21) being in contact with the heat sink housing (11); The bracket (3) comprises a bracket seat (31), a lap groove (32) is provided on the bracket seat (31), and a lap plate (111) is arranged in the lap groove (32).

2. The high temperature and humidity resistant capacitor housing according to claim 1, characterized in that: The rubber member (17) comprises a rubber ring (171), a rubber sheet (173) is arranged inside the rubber ring (171), an outer end of the rubber sheet (173) is fixedly connected to the inner side wall of the rubber ring (171), and a rubber convex (172) is fixedly connected to the outer side wall of the rubber ring (171).

3. The high temperature and humidity resistant capacitor housing according to claim 2, characterized in that: A snap ring groove (16) is provided on the inner side wall of the mounting ring (15), and the rubber protrusion (172) is snap-connected with the snap ring groove (16).

4. The high temperature and humidity resistant capacitor housing according to claim 1, characterized in that: A through groove (19) is formed through the annular base (18), a threaded hole is formed through the annular base (18), and a threaded through hole is formed through the cover plate (110).

5. The high temperature and humidity resistant capacitor housing according to claim 4, characterized in that: Bolts (112) are threadedly connected on the annular base (18) and the cover plate (110). The bolts (112) penetrate through threaded holes on the cover plate (110) and are threadedly connected to threaded holes on the annular base (18).

6. The high temperature and humidity resistant capacitor housing according to claim 1, characterized in that: A bayonet (14) is provided at the upper end of the first bayonet arc plate (13), a bayonet protrusion (23) is fixedly connected to the connecting arc plate (22), the bayonet protrusion (23) is arranged between the second bayonet arc plate (21) and the installation arc plate (24), and the bayonet protrusion (23) is bayoneted in the bayonet (14).

7. The high temperature and humidity resistant capacitor housing according to claim 1, characterized in that: A connection end 1 (33), a connection end 2 (34), a connection end 3 (35) and a connection end 4 (36) are evenly distributed in an annular manner on the outer side wall of the bracket seat (31), and threaded holes are penetrated through the connection end 1 (33), the connection end 2 (34), the connection end 3 (35) and the connection end 4 (36).

8. The high temperature and humidity resistant capacitor housing according to claim 7, characterized in that: The first connection end (33), the second connection end (34), the third connection end (35) and the fourth connection end (36) are staggeredly arranged on the outer side wall of the bracket seat (31), and the upper end surfaces of the first connection end (33) and the second connection end (34) are flush with the lower end surfaces of the third connection end (35) and the fourth connection end (36).

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