A filter for new energy electric vehicle motor controller

Abstract

The utility model discloses a filter for a motor controller of a new energy electric vehicle, which relates to the technical field of filters. It aims to solve the problem that the existing filter has a high cost and a large volume of heat dissipation fan, and the heat dissipation fan is also easy to be damaged. After the filter is assembled, the heat dissipation holes at the bottom are difficult to heat the air in and out, which affects the overall heat dissipation effect. It includes: a filter body, both ends of the filter body are provided with a plurality of joints, and one end of the joint extends into the inner cavity, and the filter body is provided with an inner cavity; it also includes: an external heat dissipation port, which is provided on the outer wall at both ends of the filter body, and an inclined guide plate is installed inside the external heat dissipation port, and a heat dissipation channel is provided above the inclined guide plate, and an internal heat dissipation port is provided on the side wall of the heat dissipation channel, and the internal heat dissipation port is connected with the external heat dissipation port through the heat dissipation channel, and one end of the internal heat dissipation port extends to the inner wall at both ends of the inner cavity.

Description

Technical Field

[0001] The utility model relates to the technical field of filters, in particular to a filter for a motor controller of a new energy electric vehicle. Background Art

[0002] The filter is a filter circuit composed of capacitors, inductors and resistors. The filter can effectively filter out the frequency point of a specific frequency in the power line or the frequency outside the frequency point, and obtain a power signal of a specific frequency, or eliminate the power signal after a specific frequency;

[0003] The common filters on the market currently have poor heat dissipation during use, which can cause the internal temperature to be too high. At the same time, during long-term use, too much dust will accumulate inside the filter, which is not conducive to cleaning.

[0004] For example, the public document: CN220066073U, named "A waveguide filter", includes a shell, a top cover is arranged on the top of the shell, a heat dissipation fan is arranged inside the protective shell, a motor is arranged at the left end of the shell, and the motor and the heat dissipation fan are electrically connected, a bottom plate is arranged at the bottom of the shell, and heat dissipation holes are arranged at equal distances on the bottom plate. The utility model overcomes the shortcomings of the prior art by providing a protective shell, a heat dissipation fan and heat dissipation holes. The heat dissipation fan is embedded inside the lower left corner of the shell, and a layer of filter is arranged inside the protective shell to prevent dust from entering the inside of the waveguide filter. The heat dissipation fan blows outward to take away the heat in the waveguide filter. The heat dissipation holes are arranged on the bottom plate, and the heat dissipation holes are also provided with a filter to prevent dust from entering the inside. The heat dissipation fan and the heat dissipation holes can dissipate the heat inside the filter to maintain the same temperature as the environment.

[0005] The above-mentioned existing filters achieve heat dissipation through a cooling fan and achieve the effect of filtering dust through a filter. However, the cost of adding a cooling fan to the above-mentioned existing filters is high, and the volume is large. The cooling fan is also easily damaged. After the filter is assembled, the heat dissipation holes at the bottom are difficult to let air in and out for heat dissipation, affecting the overall heat dissipation effect. Therefore, it does not meet the existing needs. In this regard, we propose a filter for a new energy electric vehicle motor controller. Utility Model Content

[0006] The purpose of the utility model is to provide a filter for a motor controller of a new energy electric vehicle to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: A filter for a new energy electric vehicle motor controller, comprising: a filter body, both ends of the filter body are provided with a plurality of connectors, and one end of the connector extends into the inner cavity, and the inner cavity is opened inside the filter body;

[0008] Also includes:

[0009] An external heat dissipation port is provided on the outer walls at both ends of the filter body, an inclined guide plate is installed inside the external heat dissipation port, a heat dissipation channel is provided above the inclined guide plate, an internal heat dissipation port is provided on the side wall of the heat dissipation channel, and the internal heat dissipation port is connected with the external heat dissipation port through the heat dissipation channel, and one end of the internal heat dissipation port extends to the inner walls at both ends of the inner cavity.

[0010] Preferably, a first filter is installed on the outer wall of the external heat dissipation outlet.

[0011] Preferably, a second filter is installed at the connection between the heat dissipation channel and the external heat dissipation port.

[0012] Preferably, a U-shaped groove is provided at the middle position of the bottom of the filter body, and two ends of the groove are flush with two ends of the filter body, and a plug-in heat sink is installed inside the U-shaped groove.

[0013] Preferably, a heat conducting plate is installed at the inner bottom of the inner cavity, and the lower surface of the heat conducting plate is assembled and installed with the upper surface of the insert heat sink.

[0014] Preferably, an upper end cover is installed above the filter body, fixing bolts are installed at the four corners of the outer wall of the upper end cover, and assembly screw holes are opened at the four corners of the upper surface of the filter body. The upper end cover is installed on the filter body by combining the fixing bolts and the assembly screw holes.

[0015] Preferably, positioning seats are integrally provided at the bottom of both sides of the filter body, and a plurality of positioning holes are opened on the outer wall of the positioning seats.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The utility model arranges the outer heat dissipation port, the inclined guide plate, the heat dissipation channel, and the inner heat dissipation port so that the heat dissipation port of the filter body is symmetrically arranged at both ends. The wind entering from the end can enter the inner cavity along the heat dissipation port to cool down and dissipate the heat of the internal components, and drive the heat to be discharged from the heat dissipation port at the other end. Compared with the heat dissipation hole arrangement opened at the bottom, the heat dissipation port structure is easier for air to enter and exit, and the heat dissipation efficiency and effect in the cavity are improved; the heat dissipation channel, the outer heat dissipation port, and the inner heat dissipation port form an inverted Z-like structure. After the gas enters the interior from the outer heat dissipation port, the gas will collide with the inclined guide plate, and the mixed dust will fall down due to the collision and slide out through the inclined guide plate, and the gas will be scattered and float upward into the heat dissipation channel, and enter the interior through the inner heat dissipation port, so that the heat dissipation structure of the filter can also reduce the amount of dust entering and improve the dustproof effect through the improvement of the heat dissipation structure.

[0018] 2. The first filter is used to improve the dust-proof effect at the external heat dissipation outlet and reduce the amount of dust entering. The gas moving upward will be filtered for the second time at the second filter to further reduce the dust content in the air. The blocked impurities fall onto the inclined guide plate and are guided to the external heat dissipation outlet through the inclined guide plate for discharge, further improving the dust-proof effect.

[0019] 3. The groove is set for installing the plug-in heat sink, and a channel for gas movement exists at the bottom. The heat conducting plate is used to assemble components. The heat generated by the components during operation is transferred to the external plug-in heat sink through the heat conducting plate. When the gas circulates, it drives the heat there, further improving the heat dissipation effect of the filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a front perspective view of the utility model;

[0022] Figure 3 This is an internal view of the filter body of the utility model;

[0023] Figure 4 This is a cross-sectional view of the filter body of the utility model;

[0024] In the figure: 1. filter body; 2. upper end cover; 3. positioning seat; 4. positioning hole; 5. joint; 6. groove; 7. insert heat sink; 8. external heat dissipation port; 9. first filter; 10. inclined guide plate; 11. heat dissipation channel; 12. second filter; 13. internal heat dissipation port; 14. inner cavity; 15. heat conduction plate; 16. assembly screw hole; 17. fixing bolt. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0026] See also Figure 1-4 The utility model provides an embodiment: a filter for a new energy electric vehicle motor controller, comprising: a filter body 1, a plurality of connectors 5 are provided at both ends of the filter body 1, and one end of the connector 5 extends into an inner cavity 14, and an inner cavity 14 is opened inside the filter body 1;

[0027] Also includes:

[0028] The outer heat dissipation port 8 is provided on the outer wall at both ends of the filter body 1, and an inclined guide plate 10 is installed inside the outer heat dissipation port 8. A heat dissipation channel 11 is provided above the inclined guide plate 10, and an inner heat dissipation port 13 is provided on the side wall of the heat dissipation channel 11. The inner heat dissipation port 13 is connected with the outer heat dissipation port 8 through the heat dissipation channel 11, and one end of the inner heat dissipation port 13 extends to the inner wall at both ends of the inner cavity 14;

[0029] By setting the external heat dissipation port 8, the inclined guide plate 10, the heat dissipation channel 11, and the internal heat dissipation port 13, the heat dissipation port of the filter body 1 is symmetrically arranged at both ends. The wind entering from the end can enter the inner cavity 14 along the heat dissipation port to cool and dissipate the internal components, and drive the heat to be discharged from the heat dissipation port at the other end. Compared with the heat dissipation hole setting opened at the bottom, the heat dissipation port structure is easier to enter and exit the wind, and improves the heat dissipation efficiency and effect in the cavity; the heat dissipation channel 11 and the external heat dissipation port 8 and the internal heat dissipation port 13 form an inverted Z-like structure. After the gas enters the interior from the external heat dissipation port 8, the gas will collide with the inclined guide plate 10, and the mixed dust will fall down due to the collision and slide out through the inclined guide plate 10. The gas is scattered and floats upward to the heat dissipation channel 11, and enters the interior through the internal heat dissipation port 13, so that the heat dissipation structure of the filter can also reduce the amount of dust entering and improve the dustproof effect through the improvement of the heat dissipation structure.

[0030] See also Figure 2 , Figure 4 A first filter screen 9 is installed on the outer wall of the external heat dissipation outlet 8, and a second filter screen 12 is installed at the connection between the heat dissipation channel 11 and the external heat dissipation outlet 8;

[0031] The first filter 9 is used to improve the dust-proof effect at the external heat dissipation outlet 8 and reduce the amount of dust entering. The gas moving upward will be secondary filtered at the second filter 12 to further reduce the dust content in the air. The blocked impurities fall onto the inclined guide plate 10 and are guided to the external heat dissipation outlet 8 through the inclined guide plate 10 for discharge.

[0032] See also Figure 2 , Figure 4 A U-shaped groove 6 is provided at the middle position of the bottom of the filter body 1, and the two ends of the groove 6 are flush with the two ends of the filter body 1, and a plug-in heat sink 7 is installed inside the U-shaped groove 6; a heat conducting plate 15 is installed at the inner bottom of the inner cavity 14, and the lower surface of the heat conducting plate 15 is combined with the upper surface of the plug-in heat sink 7;

[0033] The groove 6 is provided for installing the insert heat sink 7 and providing a channel for gas movement at the bottom. The heat conducting plate 15 is used for assembling components. The heat generated during the operation of the components is transferred to the external insert heat sink 7 through the heat conducting plate 15. When the gas circulates, it drives the heat there, further improving the heat dissipation effect of the filter.

[0034] See also Figure 1 , Figure 4 An upper end cover 2 is installed above the filter body 1, and fixing bolts 17 are installed at the four corners of the outer wall of the upper end cover 2. Assembly screw holes 16 are opened at the four corners of the upper surface of the filter body 1. The upper end cover 2 is installed on the filter body 1 by combining the fixing bolts 17 with the assembly screw holes 16;

[0035] The upper end cover 2 and the filter body 1 are detachable, and the fixing bolts 17 and the assembly screw holes 16 facilitate the user to perform installation and removal operations.

[0036] See also Figure 1 The bottom of both sides of the filter body 1 are integrally provided with a positioning seat 3, and a plurality of positioning holes 4 are opened on the outer wall of the positioning seat 3;

[0037] The positioning seat 3 and the positioning hole 4 are used to fix the filter body 1 on other objects, such as a motor controller, to achieve a combined installation effect.

[0038] Working principle: When in use, the filter body 1 is fixed at the desired position through the positioning seat 3 and the positioning hole 4;

[0039] The gas enters from the external heat dissipation port 8. After the gas enters the interior from the external heat dissipation port 8, the gas will collide with the inclined guide plate 10, and the dust mixed therein will fall down due to the collision, and slide out through the inclined guide plate 10. The gas will be scattered and float upward into the heat dissipation channel 11, and enter the inner cavity 14 through the internal heat dissipation port 13, cool down and dissipate the heat of the internal components, and drive the heat to be discharged from the heat dissipation port at the other end;

[0040] When the air is inlet and dissipated, the first filter 9 filters the impurities in the gas at the external heat outlet 8. The gas moving upward will be filtered for the second time at the second filter 12 to further reduce the dust content in the air. The blocked impurities fall onto the inclined guide plate 10 and are guided to the external heat outlet 8 through the inclined guide plate 10 for discharge.

[0041] The heat generated during the operation of the components is transferred to the external insert heat sink 7 through the heat conducting plate 15, and the heat therein is taken away when the gas circulates.

[0042] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-limiting from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A filter for a new energy electric vehicle motor controller, comprising a filter body (1), wherein a plurality of connectors (5) are provided at both ends of the filter body (1), and one end of the connector (5) extends into an inner cavity (14); and an inner cavity (14) is provided inside the filter body (1); Features: Also includes: An external heat dissipation port (8) is provided on the outer wall at both ends of the filter body (1); an inclined guide plate (10) is arranged inside the external heat dissipation port (8); a heat dissipation channel (11) is provided above the inclined guide plate (10); an internal heat dissipation port (13) is provided on the side wall of the heat dissipation channel (11); the internal heat dissipation port (13) is connected to the external heat dissipation port (8) through the heat dissipation channel (11); one end of the internal heat dissipation port (13) extends to the inner wall at both ends of the inner cavity (14).

2. A filter for a new energy electric vehicle motor controller according to claim 1, characterized in that: A first filter screen (9) is installed on the outer wall of the external heat dissipation port (8).

3. The filter for a new energy electric vehicle motor controller according to claim 1, characterized in that: A second filter (12) is installed at the connection point between the heat dissipation channel (11) and the external heat dissipation port (8).

4. The filter for a new energy electric vehicle motor controller according to claim 1, characterized in that: A U-shaped groove (6) is provided at the middle position of the bottom of the filter body (1), and two ends of the groove (6) are flush with two ends of the filter body (1), and a plug-in heat sink (7) is installed inside the U-shaped groove (6).

5. A filter for a new energy electric vehicle motor controller according to claim 4, characterized in that: A heat conducting plate (15) is installed at the inner bottom of the inner cavity (14), and the lower surface of the heat conducting plate (15) is assembled and installed with the upper surface of the insert heat sink (7).

6. The filter for a new energy electric vehicle motor controller according to claim 1, characterized in that: An upper end cover (2) is installed above the filter body (1), and fixing bolts (17) are installed at the four corners of the outer wall of the upper end cover (2). Assembly screw holes (16) are opened at the four corners of the upper surface of the filter body (1), and the upper end cover (2) is installed on the filter body (1) by combining the fixing bolts (17) and the assembly screw holes (16).

7. The filter for a new energy electric vehicle motor controller according to claim 1, characterized in that: The bottoms of both sides of the filter body (1) are integrally provided with positioning seats (3), and the outer wall of the positioning seat (3) is provided with a plurality of positioning holes (4).

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