Sealing and positioning of interspersed electrode of direct current support capacitor for new energy automobile

Abstract

The utility model, which relates to the technical field of the new energy automobile, discloses a sealing and positioning device for the interspersed electrode of a DC support capacitor for a new energy automobile, comprising a capacitor plastic housing, the opening end of which is provided with a sealing clamping strip assembly. The sealing clamping strip assembly is used for improving the attaching tightness of the electrode and the opening end of the capacitor plastic shell. According to the utility model, the sealing clamping strip assembly and the groove are arranged, so that the electrode can be conveniently inserted out of the plastic shell after the internal core group is welded, the problem of how to insert the electrode out of the plastic shell is effectively solved, and the risk of leakage of an internal pouring material during pouring caused by inserting the electrode into the capacitor is prevented; the sealing performance and reliability of the capacitor are effectively improved, and the sealing clamping strip is limited by the insertion hole, the insertion rod, the insertion block and the insertion groove in the clamping state, so that the guiding effect is achieved when the sealing clamping strip is installed, and the situation that the sealing degree is affected due to the fact that the position of the sealing clamping strip deviates when resin is filled is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field, in particular to a sealing positioning of interlaced electrodes of a DC support capacitor for new energy vehicles. Background Art

[0002] As the concept of environmental protection becomes more popular, the development of new energy vehicles has received more and more attention. In new energy vehicles, DC support capacitors are one of the key electronic components, and their performance directly affects the vehicle's driving performance and energy efficiency.

[0003] When designing existing DC support capacitors, some electrodes need to be inserted into the plastic shell of the capacitor. The plastic shell needs to have holes or grooves to accommodate the insertion of the electrodes. Due to the sealing problem during the electrode insertion process, the capacitor is prone to leakage of filling and electrode insertion positioning problems, affecting the use and safety of the capacitor. Utility Model Content

[0004] The purpose of the utility model is to solve the problem of internal potting material leakage during capacitor potting and provide a sealing positioning device for inserting electrodes of a DC support capacitor for new energy vehicles.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sealing positioning of an interlaced electrode of a DC support capacitor for new energy vehicles, comprising a capacitor plastic case, a capacitor core group is arranged inside the capacitor plastic case, an electrode is welded to the top of the capacitor core group, and a sealing strip assembly is arranged at the open end of the capacitor plastic case, and the sealing strip assembly is used to improve the tightness of the fit between the electrode and the open end of the capacitor plastic case.

[0006] As a further solution of the utility model: the sealing card strip assembly includes a sealing card strip, a card slot, a plug hole, a slot, an insert block, and an insert rod;

[0007] The slot is opened at the open end of the capacitor plastic shell and extends downward, the sealing strip is removably installed inside the slot, the jack is opened at the center of the inner wall of the slot, the slot is opened on the inner wall of the slot, the insert block is integrally formed at the end of the sealing strip, and the insert rod is fixedly connected to the bottom of the sealing strip.

[0008] As a further solution of the utility model: the inner wall of the slot is provided with a groove extending downward, and the groove is used for accommodating the protruding part of the electrode therein.

[0009] As a further solution of the utility model: the inner wall of the slot matches the outer wall of the plug-in block, the slot is used for the plug-in block to engage therein, and the slot and the plug-in block in the engaged state are used to limit the end of the sealing strip.

[0010] As a further solution of the utility model: the insertion hole is used for the insertion rod to be engaged therein, and the insertion hole and the insertion rod in the engaged state are used to limit the center position of the sealing strip.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] By providing a sealing card strip assembly and a groove, the electrode can be easily inserted out of the plastic shell after the internal core group is welded, which effectively solves the problem of how to insert this type of electrode design out of the plastic shell, and prevents the risk of internal potting material leakage during potting due to the insertion of the capacitor electrode. At the same time, the electrode can also be positioned, which effectively improves the sealing performance and reliability of the capacitor. The plug-in hole, plug rod, plug block and slot in the engaged state limit the sealing card strip, thereby achieving a guiding effect when installing the sealing card strip and avoiding the situation where the position of the sealing card strip is offset during the resin filling to affect the sealing degree. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0014] Figure 2 This is a structural schematic diagram of another viewing angle of the utility model;

[0015] Figure 3 This is a schematic diagram of the cross-sectional structure of the capacitor plastic case of the utility model;

[0016] Figure 4 This is a schematic diagram of the plug-in structure of the utility model.

[0017] In the figure: 1. capacitor plastic case; 2. capacitor core group; 3. electrode; 4. sealing card strip; 5. card slot; 6. jack; 7. slot; 8. plug block; 9. plug rod; 10. groove. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figures 1 to 4In an embodiment of the utility model, a sealing positioning of an interlaced electrode of a DC support capacitor for a new energy vehicle includes a capacitor plastic case 1, a capacitor core group 2 is arranged inside the capacitor plastic case 1, an electrode 3 is welded to the top of the capacitor core group 2, and a sealing strip assembly is arranged at the open end of the capacitor plastic case 1, and the sealing strip assembly is used to improve the tightness of the electrode 3 and the open end of the capacitor plastic case 1.

[0020] In this embodiment: first, after the capacitor core group 2 and the electrode 3 are welded and assembled, the welded capacitor core group 2 and the electrode 3 are assembled into the capacitor plastic shell 1. During the assembly process, the protruding portion of the electrode 3 needs to be inserted into the groove 10 inside the card slot 5 to prevent the electrode 3 from shifting during the assembly process, resulting in the inappropriate position and size of the electrode 3 of the product, and the customer cannot install it. Then, the sealing card strip 4 is installed into the card slot 5 at the open end of the capacitor plastic shell 1. At this time, the plug block 8 formed at the end of the sealing card strip 4 is inserted into the slot 7, so that the slot 7 and the plug block 8 in the engaged state limit the end of the sealing card strip 4. At the same time, the plug rod 9 at the bottom of the sealing card strip 4 is inserted into the socket 6, and the socket 6 and the plug rod 9 in the engaged state limit the center position of the sealing card strip 4, so as to achieve a guiding effect when installing the sealing card strip 4, and avoid the situation where the position of the sealing card strip 4 is offset and affects the sealing degree when filling the resin. Finally, the sealing card strip 4, the capacitor plastic shell 1, and the electrode 3 are tightly matched through interference fit, and the product is formed by resin injection through the injection process.

[0021] Please refer to Figure 3 The sealing card strip assembly includes a sealing card strip 4, a card slot 5, a plug hole 6, a slot 7, an insert block 8, and an insert rod 9;

[0022] The card slot 5 is opened at the open end of the capacitor plastic shell 1 and extends downward. The sealing card strip 4 is disassembled and installed inside the card slot 5. The plug hole 6 is opened at the center position of the inner wall of the card slot 5. The slot 7 is opened on the inner wall of the card slot 5. The plug block 8 is integrally formed at the end of the sealing card strip 4. The plug rod 9 is fixedly connected to the bottom of the sealing card strip 4.

[0023] In this embodiment: the capacitor core group 2 and the electrode 3 in the welded state are assembled into the capacitor plastic case 1, and the sealing card strip 4 is installed into the card slot 5 at the open end of the capacitor plastic case 1. At this time, the plug block 8 formed at the end of the sealing card strip 4 is inserted into the slot 7, so that the slot 7 and the plug block 8 in the engaged state limit the end of the sealing card strip 4. At the same time, the plug rod 9 at the bottom of the sealing card strip 4 is inserted into the socket 6, and the socket 6 and the plug rod 9 in the engaged state limit the center position of the sealing card strip 4, thereby achieving a guiding effect when installing the sealing card strip 4, and avoiding the situation where the sealing card strip 4 is installed in the card slot 5 and the position deviation affects the sealing degree.

[0024] Please refer to Figure 3The inner wall of the card slot 5 is provided with a groove 10 extending downward, and the groove 10 is used for accommodating the protruding portion of the electrode 3 therein.

[0025] In this embodiment, during the assembly process, the protruding portion of the electrode 3 needs to be inserted into the groove 10 inside the card slot 5 to prevent the electrode 3 from shifting during the assembly process, resulting in an inappropriate position and size of the electrode 3 of the product, which makes it impossible for the customer to install the product.

[0026] Please refer to Figure 4 The inner wall of the slot 7 matches the outer wall of the plug block 8, and the slot 7 is used for the plug block 8 to engage therein. The slot 7 and the plug block 8 in the engaged state are used to limit the end of the sealing strip 4.

[0027] In this embodiment, the insert block 8 formed at the end of the sealing strip 4 is inserted into the slot 7 , so that the slot 7 and the insert block 8 in the engaged state limit the end of the sealing strip 4 .

[0028] Please refer to Figure 4 The insertion hole 6 is used for the insertion rod 9 to engage therein, and the insertion hole 6 and the insertion rod 9 in the engaged state are used to limit the center position of the sealing strip 4.

[0029] In this embodiment: the insertion rod 9 at the bottom of the sealing strip 4 is inserted into the inside of the insertion hole 6, and the insertion hole 6 and the insertion rod 9 in the engaged state limit the center position of the sealing strip 4, thereby achieving a guiding effect when installing the sealing strip 4.

[0030] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A seal positioning device for inserting electrodes of a DC support capacitor for new energy vehicles, comprising a capacitor plastic shell (1), a capacitor core group (2) being arranged inside the capacitor plastic shell (1), and an electrode (3) being welded to the top of the capacitor core group (2), characterized in that: The open end of the capacitor plastic case (1) is provided with a sealing strip assembly, and the sealing strip assembly is used to improve the tightness of the fit between the electrode (3) and the open end of the capacitor plastic case (1).

2. The sealing positioning of the interlaced electrodes of the DC support capacitor for new energy vehicles according to claim 1 is characterized in that: The sealing card strip assembly comprises a sealing card strip (4), a card slot (5), an insertion hole (6), a slot (7), an insertion block (8), and an insertion rod (9); The card slot (5) is formed at the open end of the capacitor plastic shell (1) and extends downwards; the sealing card strip (4) is detachably mounted inside the card slot (5); the insertion hole (6) is formed at the center of the inner wall of the card slot (5); the slot (7) is formed on the inner wall of the card slot (5); the insertion block (8) is integrally formed at the end of the sealing card strip (4); and the insertion rod (9) is fixedly connected to the bottom of the sealing card strip (4).

3. The sealing positioning of the interlaced electrodes of the DC support capacitor for new energy vehicles according to claim 2 is characterized in that: The inner wall of the slot (5) is provided with a groove (10) extending downwards, and the groove (10) is used for accommodating the protruding portion of the electrode (3) therein.

4. The sealing positioning of the interlaced electrodes of a DC support capacitor for new energy vehicles according to claim 2 is characterized in that: The inner wall of the slot (7) matches the outer wall of the insert block (8), and the slot (7) is used for the insert block (8) to engage therein. The slot (7) and the insert block (8) in the engaged state are used to limit the end of the sealing strip (4).

5. The sealing positioning of the interlaced electrodes of the DC support capacitor for new energy vehicles according to claim 2 is characterized in that: The insertion hole (6) is used for the insertion rod (9) to engage therein, and the insertion hole (6) and the insertion rod (9) in the engaged state are used to limit the center position of the sealing strip (4).

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