Filter suitable for all-in-one vehicle-mounted inverter system

Abstract

The invention relates to the technical field of filters, and discloses a filter suitable for an all-in-one vehicle-mounted inverter system, which comprises a machine shell, a bottom shell detachably mounted at the bottom end of the machine shell, a first differential common mode PCBA assembly mounted in the top end of the bottom shell, and a heat dissipation structure arranged at the bottom end of the interior of the bottom shell and used for cooling the interior of the device, the first magnetic core is fixed in the front end of the casing, and the connecting interface is arranged at the top end of the casing. The high-voltage power supply has the advantages that the integration degree is high, besides the filtering function, the branching function of electric drive parts such as the high-voltage direct-current capacitor input end, the relay input end, the high-voltage quick charge input end, the high-voltage bus input end, the OBC high-voltage branching power taking end and the AC branching power taking end is further achieved, the voltage-withstanding requirement of a high-voltage system is met, the EMC performance is good, the structure is compact, and temperature rise is small.

Description

Technical Field

[0001] The present invention relates to the technical field of filters, and in particular to a filter suitable for an all-in-one vehicle-mounted inverter system. Background Art

[0002] With the continuous development of the Industrial 2.0 era, higher requirements have been put forward for new energy electric drive products, such as deep integration solutions, low loss, high density, etc. All-in-one products, headed by BYD Yangwang series ten-in-one electric drive assemblies, have become the mainstream products in the electric drive market. The difficulties in the development of new energy all-in-one electric drives mainly include the heat loss problem caused by high integration, the electromagnetic compatibility (EMC) problem that may be caused by high and low voltage coupling, the impact of high-voltage platform applications on component reliability, and the increased production line process difficulty caused by the electric drive strength and NVH (noise, vibration, harshness) requirements. These problems need to be properly solved during the design and production process to ensure the reliability and performance of the all-in-one electric drive assembly. Therefore, higher requirements are put forward for supporting parts. For example, for vehicle-mounted filters, it is necessary to consider the integration of filtering, fast charging, and high-voltage branching functions. Filters with all-in-one interfaces have become an inevitable trend for supporting all-in-one electric drive assemblies.

[0003] There are at least the following problems in the prior art: (1) The defect of single function of vehicle-mounted filters. With the continuous development of automobile technology, vehicle-mounted electronic systems are becoming increasingly complex, and the demand for filters is also showing a trend of diversification. Vehicle-mounted filters with single functions may not be able to meet the filtering requirements of all systems, resulting in poor performance in certain application scenarios;

[0004] (2) The defect of poor heat dissipation effect. Since the device integrates multiple interfaces, the design is more complicated. Its internal layout is compact, and the space left for heat dissipation is relatively small, which makes the temperature inside the filter fluctuate greatly, thus affecting its working stability. Under high temperature conditions, the electrical parameters of the filter may change, resulting in unstable system performance. Summary of the invention

[0005] The object of the present invention is to provide a filter suitable for an all-in-one vehicle-mounted inverter system, which has a high degree of integration and, in addition to the filtering function, also includes the branching function of fast charging, integrated OBC, PTC, AC and other electric drive components, and meets the voltage withstand requirements of the high-voltage system.

[0006] In order to solve the above technical problems, an embodiment of the present invention provides a filter suitable for an all-in-one vehicle inverter system, comprising:

[0007] A filter suitable for an all-in-one vehicle inverter system includes a housing and further includes:

[0008] A bottom shell is detachably mounted on the bottom end of the housing, and a first differential common mode PCBA assembly is mounted inside the top end of the bottom shell, a third differential common mode PCBA assembly is disposed on one side of the first differential common mode PCBA assembly, and a second differential common mode PCBA assembly is disposed on the other side of the first differential common mode PCBA assembly;

[0009] The loading and unloading structure is arranged on both sides of the bottom shell and is used to connect and fix the bottom shell to the housing;

[0010] The heat dissipation structure is arranged at the bottom end of the bottom shell and is used to dissipate heat inside the device;

[0011] An installation fixing hole is provided on the outer side of the housing, a positioning structure is provided inside one side of the housing, and a frame connecting seat is provided at the bottom end of the installation fixing hole;

[0012] A first magnetic core is fixed inside the front end of the housing, and a second magnetic core is fixed inside the top end of the housing;

[0013] The connection interface is arranged at the top of the casing.

[0014] Compared with the prior art, the embodiments of the present invention have a high degree of integration. In addition to the filtering function, it also includes the branching function of electric drive components such as high-voltage DC capacitor input terminal, relay input terminal, high-voltage fast charging input terminal, high-voltage bus input terminal, OBC high-voltage branch line power supply terminal, and AC branch line power supply terminal, and meets the high-voltage system withstand voltage requirements, has good EMC performance, compact structure, and low temperature rise.

[0015] In addition, the connection interface includes a high-voltage DC capacitor input terminal installed inside the rear end of the casing, a relay input terminal installed on one side of the top of the casing, a high-voltage fast charging input terminal installed on the top of the casing, a high-voltage bus input terminal installed on the other side of the top of the casing, an AC branch line power supply terminal inserted inside the high-voltage fast charging input terminal, and an OBC high-voltage branch line power supply terminal arranged behind the AC branch line power supply terminal and connected to the high-voltage fast charging input terminal. Through the high-voltage DC capacitor input terminal, the high-voltage fast charging input terminal, the OBC high-voltage branch line power supply terminal, the AC branch line power supply terminal and the high-voltage bus input terminal, it is convenient to connect the device to multiple groups of interfaces, thereby improving the flexibility of the device.

[0016] In addition, the first magnetic core and the second magnetic core are integrated inside the casing by dispensing and potting. By filling these materials into or around the first magnetic core and the second magnetic core, an insulating layer or protective layer can be formed to reduce the interference of external factors on the first magnetic core and the second magnetic core.

[0017] In addition, the heat dissipation structure includes a guide shell fixed on one side of the casing, a heat-conducting fin installed inside the guide shell, a micro-fan installed inside the front end of the guide shell, an internal heat-conducting plate installed at the bottom ends of the third differential common mode PCBA assembly, the first differential common mode PCBA assembly and the second differential common mode PCBA assembly, and a heat pipe installed inside the bottom end of the heat-conducting plate and extending to the inside of the guide shell. The heat-conducting plate is closely attached to the third differential common mode PCBA assembly, the first differential common mode PCBA assembly and the second differential common mode PCBA assembly to absorb and transfer heat. At the same time, the heat pipe transfers the heat inside the heat-conducting plate to the inside of the guide shell. At the same time, multiple groups of heat-conducting fins increase the contact area between the heat pipe and the air, start the micro-fan to generate airflow, accelerate the flow of air on the surface of the heat-conducting fins, and quickly cool the heat-conducting fins and the heat pipes, so as to discharge the heat inside the device, dissipate the heat inside the device, improve the heat dissipation efficiency, and ensure that the filter can still work stably in a high temperature environment.

[0018] In addition, the heat pipe extends to the inside of the guide shell and is connected to the heat conducting fins. The heat conducting fins and the heat pipes are welded into an integrated structure. The heat conducting fins and the heat pipes are welded and fixed to eliminate the gap between the two, so as to facilitate heat transfer.

[0019] In addition, the heat conducting fins are arranged in a plurality of groups inside the guide shell, and the plurality of groups of heat conducting fins are evenly spaced inside the guide shell. The surface area of ​​the heat pipe is increased by the plurality of groups of heat conducting fins, thereby improving the heat dissipation effect of the heat pipe.

[0020] In addition, the loading and unloading structure includes a guide shell fixed on both sides of the bottom shell, a moving block sliding inside the guide shell, a baffle fixed inside the guide shell, a compression spring installed between the baffle and the moving block, a hook fixed to the top of the moving block, and a card plate installed inside the bottom end of the casing. By aligning the card plate with the bottom shell, the bottom shell and the casing are pushed to close, and at the same time, the compressed compression spring pushes the hook to be stuck into the inside of the card plate, connecting and fixing the casing and the bottom shell, and manually pushing the moving block into the inside of the bottom shell to separate the hook from the card plate. The casing and the bottom shell can be separated to maintain the inside of the device, so that maintenance personnel can quickly separate the circuit elements from the filter, which is convenient for checking and analyzing possible problems inside the circuit elements, such as aging, damage or poor connection of the components.

[0021] In addition, the hook and the card plate form a locking structure, and the card plate and the bottom shell form a plug-in structure. The card plate is inserted into the bottom shell to increase the contact area between the bottom shell and the housing, making the connection between the bottom shell and the housing stable.

[0022] In addition, the positioning structure includes a positioning groove opened inside one side of the casing and inside the frame connecting seat, an elastic rod inserted in the positioning groove, a block fixed on both sides of the elastic rod, an insertion rod fixed on the top of the elastic rod, a rubber seat sleeved on the outside of the insertion rod and a pull ring rotatably connected to the top of the rubber seat. By inserting the block into the interior of the positioning groove, the elastic rod is squeezed to bend inward. When the block completely passes through the positioning groove inside the casing and the frame connecting seat, the elastic rod is used to reset and push the block to both sides, so that it is not convenient for the insertion rod to leave the interior of the casing and the frame connecting seat. At the same time, the folded rubber seat is reset to push the casing downward to fit the frame connecting seat, and the installation and fixing holes inside the casing are aligned with the installation and fixing holes inside the frame connecting seat, so that the staff can use an electric screwdriver to install the bolts. After the installation is completed, the pull ring can be pulled out to facilitate multiple uses.

[0023] In addition, the rubber seat is a hollow rectangular structure with wrinkles on the surface, and the rubber seat is a telescopic structure. The elastic rods are symmetrically distributed on the vertical center line of the insertion rod. The rubber seat is folded and reset to facilitate pushing the housing and the frame connecting seat to fit together and align the installation fixing holes. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0025] Figure 1 This is one of the structural schematic diagrams of the present invention;

[0026] Figure 2 This is the second schematic diagram of the structure of the present invention;

[0027] Figure 3 This is the third structural schematic diagram of the present invention;

[0028] Figure 4 This is the fourth structural schematic diagram of the present invention;

[0029] Figure 5 A schematic diagram of a three-dimensional cross-sectional structure of a loading and unloading structure provided by the present invention;

[0030] Figure 6 A schematic diagram of the three-dimensional structure of the heat dissipation structure provided by the present invention;

[0031] Figure 7 This is a schematic diagram of the three-dimensional structure of the positioning structure provided by the present invention.

[0032] Description of the reference numerals: 1. housing; 2. first magnetic core; 3. third differential common mode PCBA assembly; 4. heat dissipation structure; 401. heat conduction plate; 402. heat pipe; 403. flow guide shell; 404. micro fan; 405. heat conduction fins; 5. bottom shell; 6. loading and unloading structure; 601. guide shell; 602. baffle; 603. compression spring; 604. moving block; 605. hook; 606. card board; 7. first differential common mode PCBA assembly; 8. second differential common mode PCBA assembly; 9. Mounting fixing hole; 10. High-voltage DC capacitor input terminal; 11. Second magnetic core; 12. Relay input terminal; 13. High-voltage fast charging input terminal; 14. OBC high-voltage branch line power supply terminal; 15. AC branch line power supply terminal; 16. High-voltage bus input terminal; 17. Positioning structure; 1701. Plug rod; 1702. Block; 1703. Rubber seat; 1704. Positioning groove; 1705. Elastic rod; 1706. Pull ring; 18. Frame connecting seat. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical scheme and advantages of the present invention clearer, the following will be described in detail with reference to the accompanying drawings. However, it will be appreciated by those skilled in the art that in the various embodiments of the present invention, many technical details are provided in order to enable the reader to better understand the present application. However, even without these technical details and various changes and modifications based on the following embodiments, the technical scheme claimed for protection in the claims of the present application can be implemented.

[0034] Embodiment 1

[0035] The first embodiment of the present invention relates to a filter suitable for an all-in-one vehicle inverter system. Figure 1-7 As shown, a filter suitable for an all-in-one vehicle inverter system includes a housing 1 and further includes:

[0036] The bottom shell 5 is detachably mounted on the bottom end of the housing 1, and a first differential common mode PCBA assembly 7 is mounted inside the top end of the bottom shell 5, a third differential common mode PCBA assembly 3 is arranged on one side of the first differential common mode PCBA assembly 7, and a second differential common mode PCBA assembly 8 is arranged on the other side of the first differential common mode PCBA assembly 7;

[0037] The loading and unloading structure 6 is arranged on both sides of the bottom shell 5 and is used to connect and fix the bottom shell 5 to the housing 1;

[0038] The heat dissipation structure 4 is arranged at the bottom end of the bottom shell 5 and is used to dissipate heat inside the device;

[0039] The mounting fixing hole 9 is provided on the outer side of the housing 1, a positioning structure 17 is provided inside one side of the housing 1, and a frame connecting seat 18 is provided at the bottom end of the mounting fixing hole 9;

[0040] A first magnetic core 2 is fixed inside the front end of the housing 1, and a second magnetic core 11 is fixed inside the top end of the housing 1;

[0041] The connection interface is arranged at the top of the housing 1 .

[0042] The connection interface includes a high-voltage DC capacitor input terminal 10 installed inside the rear end of the casing 1, a relay input terminal 12 installed on one side of the top of the casing 1, a high-voltage fast-charging input terminal 13 installed on the top of the casing 1, a high-voltage bus input terminal 16 installed on the other side of the top of the casing 1, an AC branch line power supply terminal 15 inserted inside the high-voltage fast-charging input terminal 13, and an OBC high-voltage branch line power supply terminal 14 arranged behind the AC branch line power supply terminal 15 and connected to the high-voltage fast-charging input terminal 13. The first magnetic core 2 and the second magnetic core 11 are integrated inside the casing 1 by dispensing and potting;

[0043] In the first embodiment: the position of the installation of the limiting device is limited by the positioning structure (17) so that the bolts can pass through the mounting fixing holes 9 to install the device on the top of the frame connecting seat (18). Through the high-voltage DC capacitor input terminal 10, the high-voltage fast charging input terminal 13, the OBC high-voltage branch line power supply terminal 14, the AC branch line power supply terminal 15 and the high-voltage bus input terminal 16, it is convenient to connect the device with multiple groups of interfaces, improve the flexibility of the device, realize automatic equipment assembly and inspection, and improve the consistency and qualified rate of products. The third differential common mode PCBA assembly 3, the first differential common mode PCBA assembly 7 and the second differential common mode PCBA assembly 8 are mainly used to filter out differential mode interference and improve electromagnetic compatibility (EMC) and electromagnetic interference (EMI) suppression. At the same time, the first magnetic core 2 and the second magnetic core 11 suppress electromagnetic interference and improve signal quality. The bottom shell 5 is installed on the bottom of the casing 1 through the loading and unloading structure 6, and the heat dissipation structure 4 dissipates heat to the inside of the device.

[0044] Embodiment 2

[0045] A third embodiment of the present invention relates to a filter suitable for an all-in-one vehicle inverter system, such as Figure 6As shown, it includes: the heat dissipation structure 4 includes a guide shell 403 fixed on one side of the casing 1, a heat-conducting fin 405 installed inside the guide shell 403, a micro fan 404 installed inside the front end of the guide shell 403, an internal heat-conducting plate 401 respectively installed at the bottom ends of the third differential common mode PCBA assembly 3, the first differential common mode PCBA assembly 7 and the second differential common mode PCBA assembly 8, and a heat pipe 402 installed inside the bottom end of the heat-conducting plate 401 and extending to the inside of the guide shell 403, the heat pipe 402 extends to the inside of the guide shell 403 and is connected with the heat-conducting fin 405, the heat-conducting fin 405 and the heat pipe 402 are welded and integrated, and a plurality of groups of heat-conducting fins 405 are arranged inside the guide shell 403, and the plurality of groups of heat-conducting fins 405 are evenly distributed inside the guide shell 403.

[0046] The second embodiment of the present invention relates to a filter suitable for an all-in-one vehicle inverter system. The second embodiment is substantially the same as the first embodiment, with the main difference being that in the first embodiment, when heat is generated during the operation of the third differential common mode PCBA assembly 3, the first differential common mode PCBA assembly 7, and the second differential common mode PCBA assembly 8, the internal temperature of the device increases. In the second embodiment of the present invention, the heat is absorbed and transferred by the heat conducting plate 401 being closely attached to the third differential common mode PCBA assembly 3, the first differential common mode PCBA assembly 7, and the second differential common mode PCBA assembly 8, while the heat pipe 402 transfers the heat inside the heat conducting plate 401 to the inside of the guide shell 403, and at the same time, multiple groups of heat conducting fins 405 increase the contact area between the heat pipe 402 and the air, and the micro fan 404 is started to generate airflow, accelerate the flow of air on the surface of the heat conducting fins 405, and quickly cool the heat conducting fins 405 and the heat pipe 402, so as to discharge the heat inside the device and dissipate the heat inside the device.

[0047] Embodiment 3

[0048] A third embodiment of the present invention relates to a filter suitable for an all-in-one vehicle inverter system, such as Figure 5 As shown, the loading and unloading structure 6 includes a guide shell 601 fixed on both sides of the bottom shell 5, a moving block 604 sliding inside the guide shell 601, a baffle 602 fixed inside the guide shell 601, a compression spring 603 installed between the baffle 602 and the moving block 604, a hook 605 fixed on the top of the moving block 604, and a card plate 606 installed inside the bottom end of the casing 1, a locking structure is formed between the hook 605 and the card plate 606, and a plug-in structure is formed between the card plate 606 and the bottom shell 5.

[0049] In the third embodiment: during the process of loading and unloading the device, the card plate 606 is aligned with the bottom shell 5, and the bottom shell 5 and the casing 1 are pushed to close, so that the card plate 606 enters the interior of the bottom shell 5. At the same time, the card plate 606 pushes the moving block 604 to move toward the interior of the bottom shell 5 through the inclined surface at the top of the hook 605. When the bottom shell 5 and the casing 1 are completely closed, the hook 605 is aligned with the hole inside the card plate 606, and the compressed compression spring 603 pushes the hook 605 to be inserted into the interior of the card plate 606, so that the casing 1 and the bottom shell 5 are connected and fixed. The moving block 604 is manually pushed into the interior of the bottom shell 5 to separate the hook 605 from the card plate 606. The casing 1 and the bottom shell 5 can be separated to maintain the interior of the device.

[0050] Embodiment 4

[0051] A third embodiment of the present invention relates to a filter suitable for an all-in-one vehicle inverter system, such as Figure 7 As shown, the positioning structure 17 includes a positioning groove 1704 opened inside one side of the housing 1 and inside the frame connecting seat 18, an elastic rod 1705 inserted in the positioning groove 1704, blocks 1702 fixed on both sides of the elastic rod 1705, an insertion rod 1701 fixed on the top of the elastic rod 1705, a rubber seat 1703 sleeved on the outside of the insertion rod 1701 and a pull ring 1706 rotatably connected to the top of the rubber seat 1703, the rubber seat 1703 is a hollow rectangular structure with a wrinkled surface, and the rubber seat 1703 is a telescopic structure, and the elastic rods 1705 are symmetrically distributed on the vertical center line of the insertion rod 1701;

[0052] In the fourth embodiment: when installing the device, the rubber seat 1703 is pre-set on the outside of the insertion rod 1701, and then the housing 1 is aligned with the positioning groove 1704 inside the frame connecting seat 18, and the insertion rod 1701 is pushed to make the elastic rod 1705 enter the inside of the positioning groove 1704. At the same time, the inner wall of the positioning groove 1704 squeezes the block 1702 to move, so that the two groups of elastic rods 1705 are bent inwardly, so that the block 1702 can enter the inside of the positioning groove 1704. At the same time, as the block 1702 moves, the insertion rod 1701 squeezes the rubber seat 1703 to fold. When the block 1702 is completely When passing through the positioning groove 1704 inside the casing 1 and the frame connecting seat 18, the elastic rod 1705 is used to reset and push the block 1702 to open to both sides, so that the insertion rod 1701 is not convenient to leave the inside of the casing 1 and the frame connecting seat 18. At the same time, the folded rubber seat 1703 is used to reset and push the casing 1 downward to fit the frame connecting seat 18, and the installation and fixing holes 9 inside the casing 1 are aligned with the installation and fixing holes 9 inside the frame connecting seat 18, so that the staff can use an electric screwdriver to install the bolts. After the installation is completed, the pull ring 1706 can be pulled out to pull out the block 1702 for multiple uses.

[0053] Those skilled in the art will appreciate that the above-mentioned embodiments are specific examples for implementing the present invention, and in actual applications, various changes may be made thereto in form and detail without departing from the spirit and scope of the present invention.

Claims

1. A filter suitable for an all-in-one vehicle inverter system, comprising a housing (1), characterized in that: Also includes: A bottom shell (5) is detachably mounted on the bottom end of the housing (1), and a first differential common mode PCBA assembly (7) is mounted inside the top end of the bottom shell (5); a third differential common mode PCBA assembly (3) is arranged on one side of the first differential common mode PCBA assembly (7), and a second differential common mode PCBA assembly (8) is arranged on the other side of the first differential common mode PCBA assembly (7); A loading and unloading structure (6) is arranged on both sides of the bottom shell (5) and is used to connect and fix the bottom shell (5) to the housing (1); A heat dissipation structure (4), arranged at the bottom end of the bottom shell (5) and used for dissipating heat inside the device; A mounting hole (9) is provided on the outside of the housing (1), a positioning structure (17) is provided inside one side of the housing (1), and a frame connecting seat (18) is provided at the bottom end of the mounting hole (9); A first magnetic core (2) is fixed inside the front end of the housing (1), and a second magnetic core (11) is fixed inside the top end of the housing (1); The connection interface is arranged at the top of the casing (1).

2. A filter suitable for an all-in-one vehicle inverter system according to claim 1, characterized in that: The connection interface comprises a high-voltage DC capacitor input terminal (10) installed inside the rear end of the casing (1), a relay input terminal (12) installed on one side of the top end of the casing (1), a high-voltage fast-charging input terminal (13) installed on the top end of the casing (1), a high-voltage busbar input terminal (16) installed on the other side of the top end of the casing (1), an AC branch line power supply terminal (15) inserted inside the high-voltage fast-charging input terminal (13), and an OBC high-voltage branch line power supply terminal (14) arranged behind the AC branch line power supply terminal (15) and connected to the high-voltage fast-charging input terminal (13).

3. A filter suitable for an all-in-one vehicle inverter system according to claim 1, characterized in that: The first magnetic core (2) and the second magnetic core (11) are integrated inside the casing (1) by glue dispensing and potting.

4. The filter suitable for an all-in-one vehicle inverter system according to claim 1, characterized in that: The heat dissipation structure (4) comprises a flow guide shell (403) fixed to one side of the housing (1), a heat conduction fin (405) installed inside the flow guide shell (403), a micro fan (404) installed inside the front end of the flow guide shell (403), an internal heat conduction plate (401) installed at the bottom ends of the third differential common mode PCBA assembly (3), the first differential common mode PCBA assembly (7) and the second differential common mode PCBA assembly (8), respectively, and a heat pipe (402) installed inside the bottom end of the heat conduction plate (401) and extending to the inside of the flow guide shell (403).

5. A filter suitable for an all-in-one vehicle inverter system according to claim 4, characterized in that: The heat pipe (402) extends to the interior of the flow guide shell (403) and is connected to the heat conduction fin (405), and the heat conduction fin (405) and the heat pipe (402) are welded into an integrated structure.

6. A filter suitable for an all-in-one vehicle inverter system according to claim 4, characterized in that: A plurality of groups of heat-conducting fins (405) are arranged inside the flow-conducting shell (403), and the plurality of groups of heat-conducting fins (405) are distributed at equal intervals inside the flow-conducting shell (403).

7. A filter suitable for an all-in-one vehicle inverter system according to claim 1, characterized in that: The loading and unloading structure (6) comprises a guide shell (601) fixed on both sides of the bottom shell (5), a moving block (604) sliding inside the guide shell (601), a baffle (602) fixed inside the guide shell (601), a compression spring (603) installed between the baffle (602) and the moving block (604), a hook (605) fixed on the top of the moving block (604), and a clamping plate (606) installed inside the bottom end of the housing (1).

8. A filter suitable for an all-in-one vehicle inverter system according to claim 7, characterized in that: A locking structure is formed between the locking hook (605) and the locking plate (606), and a plug-in structure is formed between the locking plate (606) and the bottom shell (5).

9. The filter suitable for an all-in-one vehicle inverter system according to claim 1, characterized in that: The positioning structure (17) comprises a positioning groove (1704) provided inside one side of the housing (1) and inside the frame connecting seat (18), an elastic rod (1705) inserted into the positioning groove (1704), clamping blocks (1702) fixed on both sides of the elastic rod (1705), an insertion rod (1701) fixed at the top end of the elastic rod (1705), a rubber seat (1703) sleeved on the outside of the insertion rod (1701), and a pull ring (1706) rotatably connected to the inside of the top end of the rubber seat (1703).

10. A filter suitable for an all-in-one vehicle inverter system according to claim 9, characterized in that: The rubber seat (1703) is a hollow rectangular structure with a wrinkled surface, and the rubber seat (1703) is a telescopic structure, and the elastic rods (1705) are symmetrically distributed on the vertical center line of the insertion rod (1701).

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