High-power insulating high-voltage energy module structure

Abstract

The high-power insulating high-voltage energy module structure comprises a shell and an upper cover, the shell and the upper cover are assembled and connected and define a capacitor cavity for accommodating a capacitor core in a surrounding mode, and an extraction electrode electrically connected with the capacitor core is installed on the upper cover. The shell is made of insulating materials in a splicing or integrated mode, at least two lifting rope positioning grooves are formed in the bottom face of the shell in an inwards-concave mode, the two lifting rope positioning grooves are parallel to each other and penetrate to the front end side and the rear end side of the shell, and the design of the shell of the modular structure ensures that a large-scale insulating shell product can be lifted, so that the structure is simple and convenient. Installation is convenient, a user can directly assemble the whole machine conveniently, and the problem that a large insulation shell product cannot be carried and installed due to bearing force is solved.

Description

Technical Field

[0001] The utility model relates to the field of capacitors, in particular to an insulating high-voltage energy module structure for high power use. Background Art

[0002] As the most important energy storage element in the energy conversion process, capacitors are indispensable key components, especially capacitors for energy storage pulses, which are widely used in industrial energy conservation and environmental protection, power systems, military and other fields. With the increasing requirements for miniaturization, lightweight and high energy density of equipment, corresponding requirements are also put forward for components. Pulse capacitors, as key components of related power pulse equipment, are not only improved in reliability and long life, but also crucial to the new optimization design of product structure.

[0003] The structure of a typical high-power high-voltage capacitor is a capacitor core, internal connecting wires, lead electrodes, shell, and filling materials. Due to the large size and heavy weight of pulse capacitors, how to solve the problems of lightweight, small size, installability, load-bearing, easy to carry, and how to ensure the insulation of the lead electrodes for ultra-high voltage, such products generally use metal non-magnetic stainless steel shells for their shells; the interior is generally composed of dozens to hundreds of cores connected in series and parallel to form a core group; in order to meet the requirements of high power and high energy density during design, meet the requirements of miniaturization, lightness, and capacitor groups for high-power energy modules, especially in high-voltage 10~100KV energy modules, it is necessary to solve how to ensure the creepage distance between its lead electrodes, and how to use insulating shell design to meet the above requirements. Summary of the invention

[0004] The purpose of the utility model is to solve the above existing problems and provide a simple and reasonable high-power insulating high-voltage energy module structure, the main function of which is to ensure that large insulating shell products can be lifted.

[0005] A high-power insulated high-voltage energy module structure comprises a shell and an upper cover, wherein the shell and the upper cover are assembled and connected to define a capacitor cavity for accommodating a capacitor core, and a lead electrode electrically connected to the capacitor core is mounted on the upper cover. The shell is made of insulating material by splicing or integrating, and at least two suspension rope positioning grooves are concavely provided on the bottom surface of the shell, and the two suspension rope positioning grooves are arranged parallel to each other and pass through to the front and rear end sides of the shell.

[0006] The purpose of the utility model can also be solved by the following technical measures:

[0007] As a more specific solution, the insulating material includes plastic.

[0008] As a further solution, a mounting ear is provided on the shell, and the extension direction of the mounting ear is arranged flush with the adjacent end surface of the shell, and a plurality of connecting through holes are opened on the mounting ear.

[0009] As a further solution, the upper cover is equipped with at least two lead-out electrodes, an intermediate partition is vertically extended from the outer surface of the upper cover, the extension of the intermediate partition matches the width of the upper cover, and the intermediate partition is arranged between the two lead-out electrodes.

[0010] As a further solution, the upper cover is provided with insulating terminals of a number corresponding to the lead-out electrodes, and the insulating terminals are integrally formed with the upper cover; the insulating terminals are provided with lead-out through holes, and the lead-out electrodes are assembled and connected in the lead-out through holes.

[0011] As a further solution, the upper cover is provided with mounting holes corresponding to the number of lead-out electrodes, and insulating terminals that fit closely with the mounting holes are adhered to the upper cover by plastic glue, and lead-out holes are provided on the insulating terminals, and the lead-out electrodes are assembled and connected in the lead-out holes.

[0012] As a further solution, the lead-out electrode includes a lead-out terminal and a positioning terminal, the connecting portion of the lead-out terminal is buckled into the lead-out through hole from bottom to top, and the positioning terminal is cooperatively connected with the connecting portion of the lead-out terminal and pressed against the outer surface of the insulating terminal; the lead-out terminal is a bolt structure, and the positioning terminal is a nut structure.

[0013] As a further solution, the outer surface of the upper cover is provided with insulating sleeves corresponding to the number of lead-out electrodes, the insulating sleeves are in a straight tube structure, and the insulating sleeves are arranged on the outer periphery of the lead-out electrodes.

[0014] As a further solution, the inner wall of the insulating sleeve is provided with an internal threaded portion, and the outer wall of the insulating terminal is provided with an external threaded portion, and the insulating sleeve is fixedly connected to the insulating terminal by threaded cooperation, or the insulating sleeve is tightly nested outside the insulating terminal, and the insulating sleeve is fixedly connected after being adhered to the insulating terminal by plastic glue.

[0015] As a further solution, the upper cover is provided with a plurality of filling ports for filling the liquid packaging material; the inner wall of the outer shell and the bottom surface of the upper cover are roughened.

[0016] The beneficial effects of the present invention are as follows:

[0017] 1. The design of the shell ensures that large insulating shell products can be lifted and installed easily, which makes it convenient for users to assemble the whole machine directly, solving the problem that large insulating shell products cannot be transported and installed due to their bearing capacity.

[0018] 2. The design of the upper cover: The insulating terminal and the upper cover can be matched, and the one-piece molding effectively reduces the shell processing cost of the product. The middle partition method effectively ensures the product's installation creepage problem for ultra-high voltage.

[0019] 3. The design of the insulating sleeve effectively ensures the safe creepage distance of the product's ultra-high voltage. After the product is assembled in the whole module, high-voltage insulating resin / potting glue can be directly poured at the electrode connection, especially to solve the direct safety problem of the electrodes of products above 50kv.dc.

[0020] 4. The overall design of the insulating shell effectively reduces the weight of the product and the insulation problem of the overall structure of the product.

[0021] 5. Plastic glue is used at the interface between the insulating shell and the upper cover to bond them as a whole, and the inner wall of the insulating shell and the bottom of the upper cover are roughened, which effectively ensures the overall adhesion between the potting material and the shell, and plays a moisture-proof and anti-oxidation design. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic structural diagram of an embodiment of the utility model.

[0023] Figure 2 It is a schematic diagram of the hoisting rope positioning groove structure and hoisting in the utility model.

[0024] Figure 3 It is a schematic diagram of the upper cover structure of the utility model.

[0025] Figure 4 The schematic diagram of the connection structure between the upper cover and the insulating terminal of the utility model is shown in FIG. Figure 1 .

[0026] Figure 5 The schematic diagram of the connection structure between the upper cover and the insulating terminal of the utility model is shown in FIG. Figure 2 .

[0027] Figure 6 It is a schematic diagram of the matching structure of the upper cover and the insulating sleeve of the utility model.

[0028] Figure 7 The schematic diagram of the connection structure between the upper cover and the insulating sleeve of the utility model is shown in FIG. Figure 1 .

[0029] Figure 8 The schematic diagram of the connection structure between the upper cover and the insulating sleeve of the utility model is shown in FIG. Figure 2 .

[0030] Fig. 9 This is a schematic diagram of a cylindrical structure of the energy module of the utility model. DETAILED DESCRIPTION

[0031] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0032] like Figure 1 and Figure 2 As shown, a high-power insulated high-voltage energy module structure includes a shell 1 and an upper cover 2, the shell 1 and the upper cover 2 are assembled and connected to enclose and define a capacitor cavity for accommodating a capacitor core 3, and a lead electrode 4 electrically connected to the capacitor core 3 is installed on the upper cover 2. The shell 1 is made of insulating material by splicing or integrating, and two hanging rope positioning grooves 11 are concavely provided on the bottom surface of the shell 1. The two hanging rope positioning grooves 11 are arranged parallel to each other and pass through the front and rear end sides of the shell 1.

[0033] For products weighing 40kg to 200kg, the design of the housing 1 ensures that the large insulating housing 1 product can be lifted, which is easy to install, and facilitates users to directly assemble the whole machine, solving the problem that the large insulating housing product cannot be carried and installed due to its bearing capacity; when lifting, two lifting ropes are passed through the lifting rope positioning grooves 11, and after the product is installed in the power equipment, the lifting ropes are directly pulled out, and the product can be directly installed.

[0034] In addition, the two lifting rope positioning grooves 11 are preferably opened on the outer side of the bottom surface of the shell 1, so that the lifting rope can be stably hoisted without stress concentration in the middle causing left and right flipping.

[0035] The mouth of the shell 1 is provided with a supporting step surface 101 , and the upper cover 2 is abutted against the supporting step surface 101 during assembly, so that the upper cover 2 is embedded in the shell 1 , and the joint between the shell 1 and the upper cover 2 is bonded together with plastic glue.

[0036] In this embodiment, the insulating material is preferably plastic, while in other embodiments, the insulating material may also be SMC or the like; the overall design of the plastic housing 1 effectively reduces the weight of the product and the insulation problem of the overall structure of the product.

[0037] The housing 1 is provided with mounting ears 12, the extension direction of the mounting ears 12 is flush with the adjacent end surface of the housing 1, and the mounting ears 12 are provided with a plurality of connecting through holes 121; the mounting ears 12 are arranged in a strip shape on the rear side and the bottom side of the left and right sides of the housing 1 to form an L-shaped structure, and each mounting ear 12 is provided with a plurality of connecting through holes 121 at intervals.

[0038] like Figure 3As shown, the upper cover 2 is installed with at least two lead-out electrodes 4, and an intermediate partition 21 is vertically extended from the outer surface of the upper cover 2. The extension of the intermediate partition 21 matches the width of the upper cover 2, and the intermediate partition 21 is arranged between the two lead-out electrodes 4; the intermediate partition 21 ensures the direct creepage distance of the electrodes. In the case of low-voltage products, the intermediate partition 21 can be directly eliminated when the creepage distance is sufficient.

[0039] The upper cover 2 is provided with a plurality of potting ports 202 for pouring liquid packaging materials such as epoxy resin or polyurethane; the inner wall of the outer shell 1 and the bottom surface of the upper cover 2 are roughened, and the roughening treatment can effectively ensure the overall adhesion between the potting material and the outer shell, thereby achieving a moisture-proof and anti-oxidation design.

[0040] In this embodiment, if Figure 4 As shown, the upper cover 2 is provided with insulating terminals 5 corresponding to the number of lead-out electrodes 4, and the insulating terminals are made integrally with the upper cover 2; the insulating terminals 5 are provided with lead-out through holes 51, and the lead-out electrodes 4 are assembled and connected in the lead-out through holes 51; the insulating terminals of the upper cover 2 are designed to cooperate with the upper cover, and the integral molding effectively reduces the shell processing cost of the product.

[0041] In more embodiments, Figure 5 As shown, the upper cover 2 is provided with mounting through holes 201 corresponding to the number of lead-out electrodes 4, and the upper cover 2 is adhered with insulating terminals 5 that closely match the mounting through holes 201 by plastic glue, and the insulating terminals 5 are provided with lead-out through holes 51, and the lead-out electrodes 4 are assembled and connected in the lead-out through holes 51.

[0042] The lead-out electrode 4 includes a lead-out terminal 41 and a positioning terminal 42. The connecting portion of the lead-out terminal 41 is buckled into the lead-out through hole 51 from bottom to top. The positioning terminal 42 is matched and connected with the connecting portion of the lead-out terminal 41 and pressed against the outer surface of the insulating terminal 5. The lead-out terminal 41 is a bolt structure, and the positioning terminal 42 is a nut structure.

[0043] The insulating terminal 5 is provided with a positioning step 511 along the outer circumference of the lead-out through hole 51 . After the positioning terminal 42 is screwed to the lead-out terminal 41 , the positioning terminal 42 is supported on the positioning step 511 and is flush with the outer surface of the insulating terminal 5 .

[0044] like Figure 6As shown, the outer surface of the upper cover 2 is provided with insulating sleeves 6 corresponding to the number of lead-out electrodes 4, the insulating sleeves 6 are in a straight-tube structure, and the insulating sleeves 6 are sleeved on the outer periphery of the lead-out electrode 4; when the ultra-high voltage creepage distance is not enough, an insulating sleeve 6 is installed at the position of the overall lead-out terminal 41 of the ultra-high voltage product to wrap and insulate the lead-out electrode and the wiring electrode as a whole; and when the low-voltage creepage distance is completely sufficient, the insulating sleeve is not required, and the lead-out electrode can be directly led out.

[0045] The connection methods of the insulating sleeve 6 include:

[0046] Method 1: If Figure 7 As shown, the inner wall of the insulating sleeve 6 is provided with an internal threaded portion 61, and the outer wall of the insulating terminal 5 is provided with an external threaded portion 52, and the insulating sleeve 6 is fixedly connected to the insulating terminal 5 by threaded fitting; in this way, after the product is manufactured, the insulating sleeve 6 is directly screwed into the insulating terminal 5 when the whole machine module is assembled.

[0047] Method 2: If Figure 8 As shown, the insulating sleeve 6 is tightly nested outside the insulating terminal 5, and the insulating sleeve 6 is adhered to the insulating terminal 5 by plastic glue B to be fixedly connected.

[0048] In this embodiment, the housing 1 is a square structure, and in more embodiments, as Fig. 9 As shown, the housing 1 is of cylindrical structure, and a fixing nut position 7 is designed and installed corresponding to the circular upper cover 2 to ensure convenient installation and transportation of the product.

[0049] The above is a preferred embodiment of the utility model, which shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. The utility model may have various changes and improvements without departing from the spirit and scope of the utility model, and these changes and improvements fall within the scope of the utility model to be protected, and the scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A high-power insulated high-voltage energy module structure, comprising a housing (1) and an upper cover (2), wherein the housing (1) and the upper cover (2) are assembled and connected to define a capacitor cavity for accommodating a capacitor core (3), and an extraction electrode (4) electrically connected to the capacitor core (3) is installed on the upper cover (2), characterized in that : The housing (1) is made of insulating material by splicing or integrating, and the bottom surface of the housing (1) is provided with at least two hanging rope positioning grooves (11) in a concave manner, and the two hanging rope positioning grooves (11) are arranged parallel to each other and extend to the front and rear ends of the housing (1); The housing (1) is provided with a mounting ear (12), the mounting ear (12) extending in a direction flush with an adjacent end surface of the housing (1), and the mounting ear (12) is provided with a plurality of connecting through holes (121); The upper cover (2) is provided with at least two extraction electrodes (4); an intermediate partition (21) is vertically extended from the outer surface of the upper cover (2); the extension of the intermediate partition (21) matches the width of the upper cover (2); and the intermediate partition (21) is arranged between the two extraction electrodes (4); The upper cover (2) is provided with insulating terminals (5) of a number corresponding to the number of lead-out electrodes (4), and the insulating terminals (5) are made integrally with the upper cover (2); the insulating terminals (5) are provided with lead-out through holes (51), and the lead-out electrodes (4) are assembled and connected in the lead-out through holes (51); The upper cover (2) is provided with mounting through holes (201) of a number corresponding to the number of lead-out electrodes (4); insulating terminals (5) tightly fitting with the mounting through holes (201) are adhered to the upper cover (2) by means of plastic glue; lead-out through holes (51) are provided on the insulating terminals (5); and the lead-out electrodes (4) are assembled and connected in the lead-out through holes (51).

2. A high-power insulating high-voltage energy module structure according to claim 1, characterized in that The lead-out electrode (4) comprises a lead-out terminal (41) and a positioning terminal (42); the connecting portion of the lead-out terminal (41) is buckled into the lead-out through hole (51) from bottom to top; the positioning terminal (42) is matched and connected to the connecting portion of the lead-out terminal (41) and pressed against the outer surface of the insulating terminal (5); the lead-out terminal (41) is a bolt structure, and the positioning terminal (42) is a nut structure.

3. The high-power insulation high-voltage energy module structure according to claim 1 is characterized in that The outer surface of the upper cover (2) is provided with insulating sleeves (6) of a number corresponding to the number of lead-out electrodes (4); the insulating sleeves (6) are in a straight tube structure, and the insulating sleeves (6) are sleeved on the outer circumference of the lead-out electrodes (4).

4. A high-power insulating high-voltage energy module structure according to claim 3, characterized in that The insulating sleeve (6) has an inner wall provided with an internal threaded portion (61), and the insulating terminal (5) has an outer wall provided with an external threaded portion (52); the insulating sleeve (6) is fixedly connected to the insulating terminal (5) by threaded engagement; or, the insulating sleeve (6) is tightly nested outside the insulating terminal (5), and the insulating sleeve (6) is fixedly connected to the insulating terminal (5) by adhering to the insulating terminal (5) with plastic glue.

5. The high-power insulation high-voltage energy module structure according to claim 1 is characterized in that The upper cover (2) is provided with a plurality of filling openings (202) for filling liquid packaging material; the inner wall of the outer shell (1) and the bottom surface of the upper cover (2) are roughened.

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